ELASTIC RESET DEVICE

Abstract

An elastic reset device arranged in the middle of a grate plate is disclosed, which includes reset blocks, springs, sleeves and a guide plate. The reset blocks comprise a left reset block and a right reset block, the upper ends of the left and right reset blocks are partially overlapped, a folding angle α is provided at the overlapping portion and is not less than 45 degrees, and a ceramic fiber blanket is filled at the folding angle.

Claims

1. An elastic reset device, arranged in a middle of a grate plate, comprising reset blocks, springs, sleeves and a guide plate, wherein the reset blocks comprise a left reset block and a right reset block, an upper end of the left reset block and an upper end of the right reset block are arranged to overlap each other in a portion at which a folding angle α not less than 45 degree is provided, and a ceramic fiber blanket is filled at the folding angle.

2. The elastic reset device as claimed in claim 1, wherein the springs and the sleeves are uniformly distributed inside the elastic reset device, each of the sleeves comprises an outer sleeve and an inner sleeve which are fixedly connected to the left reset block and the right reset block respectively, one of the springs is fitted between the outer sleeve and the inner sleeve, and both ends of the one of the springs press against the left reset block and the right reset block, respectively, such that the left reset block and the right reset block are always in close contact with the grate plate.

3. The elastic reset device as claimed in claim 1, wherein lower ends of the left reset block and the right reset block are provided with longitudinal waist shape holes.

4. The elastic reset device as claimed in claim 2, wherein a guide plate is provided in a middle between the left reset block and the right reset block, the guide plate sleeves the outer sleeve, and a bottom end of the guide plate is supported on a support base.

5. The elastic reset device as claimed in claim 4, wherein the support base is provided with transverse waist shape holes.

6. The elastic reset device as claimed in claim 5, wherein each of the transverse waist shape holes and each of the transverse waist shape holes are aligned with each other, and are connected to each other via a bolt and a nut as well as a spring washer.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1 is a view of the overall structure of the present disclosure;

[0017] FIG. 2 is an enlarged view of portion I in FIG. 1;

[0018] FIG. 3, FIG. 4 and FIG. 5 are schematic diagrams of holes in section A-A, section B-B, and section C-C of FIG. 1, respectively;

[0019] Reference numerals in the figures: 1 grate plate, 2 left reset block, 3 right reset block, 4 spring, 5 outer sleeve, 6 inner sleeve, 7 guide plate, 8 bolts and nuts, 9 support base, 10 spring washer, 11 ceramic fiber blanket, 12 longitudinal waist shape hole, 13 transverse waist shape hole.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present disclosure is further described below in conjunction with the accompanying drawings.

[0021] As shown in FIG. 1, the elastic reset device of the present disclosure is arranged in the middle of the grate plate 1, and includes reset blocks, springs 4, sleeves and a guide plate 7. The reset blocks comprise a left reset block 2 and a right reset block 3. As shown in FIG. 2, upper ends of the left reset block and the right reset block are arranged to overlap each other in a portion, a folding angle α is provided at the overlapping portion, and the folding angle α is not less than 45 degrees, and the ceramic fiber blanket 11 is filled at the folding angle. The springs 4 and the sleeves are uniformly distributed inside the elastic reset device, and each sleeve comprises an outer sleeve 5 and an inner sleeve 6 which are respectively fixedly connected to the left and right reset blocks. The spring 4 is fitted between the outer sleeve 5 and the inner sleeve 6, and both ends of the spring 4 press against the left and right reset blocks such that the left and right reset blocks are always in close contact with the grate plate 1. As shown in FIG. 3, the guide plate 7 is disposed in the middle between the left reset block 2 and the right reset block 3, the guide plate 7 sleeves the outer sleeve 5, and a bottom end of the guide plate 7 is supported on the support base 9. As shown in FIGS. 4 and 5, lower ends of the left and right reset blocks are provided with longitudinal waist shape holes 12, the support base 9 is provided with transverse waist shape holes 13, and each of the longitudinal waist shape holes 12 and each of the transverse waist shape holes 13 are aligned with each other and are connected to each other via a bolt and a nut 8 as well as a spring washer 10.

[0022] The operation process of the elastic reset device of the present disclosure is as follows: [0023] During operation of the grate plate, the grate plate in close contact with the elastic reset device is heated to generate thermal expansion, and the left reset block 2 and the right reset block 3 of the elastic reset device are pushed centrally to drive the outer sleeve 5 and the inner sleeve 6 to move and press the spring 4 at the same time. Since the lower ends of the reset blocks are provided with the longitudinal waist shape holes 12, the support base 9 is provided with the transverse waist shape holes 13, and the two are connected via the bolts and nuts 8 and the spring washers 10, thereby meeting the expansion requirement in respective directions. When the grate is cooled and thus contracted, the forces applied to the reset blocks are reduced, and under the action of the springs 4, the reset blocks are in close contact with the grate plate, thereby eliminating a possible gap between the reset blocks and the grate plate, ensuring the ventilation cross section of the grate plate is constant.