Connecting clamp for template assembling

Abstract

A connecting clamp for template assembling includes: a left clamp unit (1) and a right clamp unit (2), wherein the left clamp unit (1) is rotatably connected to the right clamp unit (2) through a shaft (3); clamping faces (13) and positioning-correction faces (14) corresponding to frames (101) of templates (10) are provided at front portions of both the left clamp unit (1) and the right clamp unit (2); a fixer is provided at rear portions of the left clamp unit (1) and the right clamp unit (2), wherein the fixer enables the front portions of the left clamp units (1) and the right clamp unit (2) to grip the frames (101) of the templates (10). The present invention has advantages such as a simple structure, convenient use and adaptability to assembling of various templates.

Claims

1. A connecting clamp for template assembling, comprising: a left clamp unit (1) and a right clamp unit (2), wherein the left clamp unit (1) is rotatably connected to the right clamp unit (2) through a shaft (3); clamping faces (13) and positioning-correction faces (14) corresponding to frames (101) of templates (10) are provided at front portions of both the left clamp unit (1) and the right clamp unit (2); a fixer is provided at rear portions of the left clamp unit (1) and the right clamp unit (2), wherein the fixer enables the front portions of the left clamp units (1) and the right clamp unit (2) to grip the frames (101) of the templates (10).

2. The connecting clamp, as recited in claim 1, wherein the fixer comprises a hole (11) drilled at the rear position of the left clamp unit (1), and a wedge (4) being movable up and down and placed in the hole (11), wherein a side face of the wedge (4) is corresponding to the rear portion of the right clamp unit (2), which moves down with the wedge (4) for pushing the left clamp unit (1) and the right clamp unit (2) to rotate around the shaft (3), in such a manner that the front portions of the left clamp unit (1) and the right clamp unit (2) grip adjacent frames.

3. The connecting clamp, as recited in claim 2, wherein an opening of the hole (11) of the left clamp unit (1) extends upwards for forming a back plate (12) which limits the wedge (4) to move down.

4. The connecting clamp, as recited in claim 2, wherein a pin hole (41) is drilled at a bottom portion of the wedge (4), and a pin (5) is installed in the pin hole (41) for preventing the wedge (4) from detaching from the hole (11).

5. The connecting clamp, as recited in claim 1, wherein the fixer comprises a hole (11) drilled at the rear position of the left clamp unit (1), and a cam (6) being rotatable and placed in the hole (11), wherein the cam (6) rotates in the hole (11) for pushing the rear position of the right clamp unit (2) to rotate around the shaft (3), in such a manner that the front portion of the right clamp unit (2) grips adjacent frames.

6. The connecting clamp, as recited in claim 5, wherein a limiter (7) for limiting a rotating range of the cam (6) is placed at a side of the hole (11) on the left clamping unit (1).

7. The connecting clamp, as recited in claim 1, wherein a reset device is provided between the left clamp unit (1) and the right clamp unit (2) for keeping an opened state of the front portions when the fixer is activated.

8. The connecting clamp, as recited in claim 7, wherein the reset device is a reset spring (8) sleeved on the shaft (3), wherein a first end of the reset spring (8) is mounted on the rear portion of the left clamp unit (1), and a second end of the reset spring (8) is mounted on the rear portion of the right clamp unit (1).

9. The connecting clamp, as recited in claim 7, wherein the reset device is a tension spring (9) installed between the left clamp unit (1) and the right clamp unit (2), wherein a first end of the tension spring (9) is mounted on the rear portion of the left clamp unit (1), and a second end of the tension spring (9) is mounted on the rear portion of the right clamp unit (1).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a perspective view of the present invention after assembling.

[0018] FIG. 2 is a bottom view of the present invention after assembling.

[0019] FIG. 3 is an A-A enlarged view of the present invention after assembling.

[0020] FIG. 4 is a B-B enlarged view of a template of the present invention.

[0021] FIG. 5 is a perspective view of an embodiment 1 of the present invention.

[0022] FIG. 6 is an exploded view of the embodiment 1 of the present invention.

[0023] FIG. 7 is a perspective view of an embodiment 2 of the present invention.

[0024] FIG. 8 is an exploded view of the embodiment 2 of the present invention.

[0025] FIG. 9 is a sectional view of the embodiment 2 of the present invention.

[0026] FIG. 10 is a perspective view of an embodiment 3 of the present invention.

[0027] FIG. 11 is a perspective view of an embodiment 4 of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0028] Referring to FIGS. 1-11, a connecting clamp for template assembling of the present invention is provided, comprising: a left clamp unit 1 and a right clamp unit 2, wherein the left clamp unit 1 is rotatably connected to the right clamp unit 2 through a shaft 3; clamping faces 13 and positioning-correction faces 14 corresponding to frames 101 of templates 10 are provided at front portions of both the left clamp unit 1 and the right clamp unit 2; a fixer is provided at rear portions of the left clamp unit 1 and the right clamp unit 2, wherein the fixer enables the front portions of the left clamp units 1 and the right clamp unit 2 to grip the frames 101 of the templates 10. The present invent may adapt different structures, the fixer comprises a hole 11 drilled at the rear position of the left clamp unit 1, and a wedge 4 being movable up and down and placed in the hole 11, wherein a side face of the wedge 4 is corresponding to the rear portion of the right clamp unit 2, which moves down with the wedge 4 for pushing the left clamp unit 1 and the right clamp unit 2 to rotate around the shaft 3, in such a manner that the front portions of the left clamp unit 1 and the right clamp unit 2 grip adjacent frames. Meanwhile, an opening of the hole 11 of the left clamp unit 1 extends upwards for forming a back plate 12 which limits the wedge 4 to move down. A pin hole 41 is drilled at a bottom portion of the wedge 4, and a pin 5 is installed in the pin hole 41 for preventing the wedge 4 from detaching from the hole 11. Alternatively, the fixer comprises a hole 11 drilled at the rear position of the left clamp unit 1, and a cam 6 being rotatable and placed in the hole 11, wherein the cam 6 rotates in the hole 11 for pushing the rear position of the right clamp unit 2 to rotate around the shaft 3, in such a manner that the front portion of the right clamp unit 2 grips adjacent frames. Meanwhile, a limiter 7 for limiting a rotating range of the cam 6 is placed at a side of the hole 11 on the left clamping unit 1. For convenience of the present invention, a reset device is provided between the left clamp unit 1 and the right clamp unit 2 for keeping an opened state of the front portions when the fixer is activated. The reset device may adapt different structures, the reset device is a reset spring 8 sleeved on the shaft 3, wherein a first end of the reset spring 8 is mounted on the rear portion of the left clamp unit 1, and a second end of the reset spring 8 is mounted on the rear portion of the right clamp unit 1. Alternatively, the reset device is a tension spring 9 installed between the left clamp unit 1 and the right clamp unit 2, wherein a first end of the tension spring 9 is mounted on the rear portion of the left clamp unit 1, and a second end of the tension spring 9 is mounted on the rear portion of the right clamp unit 1.

[0029] According to the present invention, adjacent aluminum templates are connected through a high-strength rotary buckle, main advantages are as follows.

[0030] 1, Connection is stable. Slots and cams of side ribs of the aluminum templates cooperate with a clip of rotary buckle, wherein when a wedge of the rotary buckle bears a force and moves down along a hole, a beveled face of the wedge contacts with a right clamp unit of the rotary buckle, and rotates the right clamp unit counter-clockwise around a shaft, in such a manner that the clip of the rotary buckle tightly contacts with the slots of the aluminum templates. The more a downward displacement of the wedge is, the more stable a connection between the templates will be. When it comes to iron pin connection, since the pin hole is easy to be worn. Therefore, after repeated use, connection between the templates will be looser and looser, and a gap between the templates will be larger and larger. On the contrary, the rotary buckle connection is tighter, more stable and safer than iron pin connection.

[0031] 2, Assemble is easy and construction is fast. It is easy to assemble or disassemble the templates with just a hammer. During connecting the templates, the wedge of the rotary buckle is simply drawn and detached from the hole of the right clamp unit, and then a rear portion of the rotary buckle is strongly held for separating the left clamp unit and the right clamp unit. Meanwhile, the clip is placed in the slot of the template, and then the wedge is struck with the hammer, in such a manner that the two templates are tightly connected with each together. A disassemble process is just opposite to the assemble process. If the aluminum templates are connected with the iron pin, the iron pin is inserted into a pin hole on the side rib of the template, and then the wedge is inserted and tightly knocked into a slot of the iron pin, while the wedge must be bent by knocking, so as to prevent the iron pin from loosing. During detaching, the wedge must be knocked to be straight before loosing the iron pin. On the contrary, connection with the rotary buckle is easier and more convenient.

[0032] 3, A service life is long. Connection with the iron pin needs to drill pin holes on side ribs of the templates, wherein a contact area between the iron pin and the template is small, and edges of the pin hole is easy to be damaged. However, there is no need to damage the structure such as drilling holes on the templates which are connected by the rotary buckle, wherein a force area of the side rib of the template is large and the template is not easy to be damaged. According to comparison, the service life of the templates connected by the rotary buckle is longer than that by the iron pin.

[0033] 4, The present invention is economical. The rotary buckle is casted by high-strength cast steel, which is not easy to be damaged and is able to be recycled. Secondly, connection with the rotary buckle provides a long service life to the templates, wherein utilization number is high and construction costs are greatly reduced. Because the pin hole of the templates connected by the iron pin are easy to worn, utilization number is lower than that of the templates connected by the rotary buckle. Furthermore, the wedge for fixing the iron pin must be replaced after several uses, so a recycle number is low. According to comprehensive comparison, connection with the rotary buckle is more affordable than connection with the iron pin. In addition, a recycling rate of aluminum templates is higher than that of wooden or iron-wooden templates, leading to lower construction costs.