MONITORING SENSOR HAVING SAFETY FUNCTION FOR EVACUATING THE GAS PRESSURE SPRING WIRELESSLY

Abstract

The invention relates to a monitoring sensor (1) for measuring, receiving and transmitting a physical variable (P) of a gas pressure spring (2), comprising a sensor element (3) and a pressure relief opening (4), characterized in that the pressure relief opening (4) can be switched from an operating state into a safety state by remotely triggering the sensor element (3) in order to evacuate the gas pressure spring (2), wherein the monitoring sensor (1) is designed with a connection device (5), which can be detached in accordance with the intended use, for connection to a coupling (6) of the gas pressure spring (2).

Claims

1.-13. (canceled)

14. A monitoring sensor for measuring, receiving and transmitting a physical variable of a gas pressure spring, comprising a sensor element and a pressure relief opening, wherein the pressure relief opening can be switched from an operating state into a safety state by remotely triggering the sensor element in order to evacuate the gas pressure spring, wherein the monitoring sensor is designed with a connection device, which can be detached in accordance with the intended use, for connecting to a coupling of the gas pressure spring.

15. The monitoring sensor according to claim 14, wherein the sensor element is designed for monitoring a pressure in the gas pressure spring.

16. The monitoring sensor according to claim 14, wherein in addition to data for the pressure, the sensor element optionally determines one or all of the additional variables: the temperature, the part number, the part ID, the sensor ID, the position in the tool, the different cycle times, the battery status and the transmission power of the sensor, and transmits them wirelessly to a gateway or a data holder.

17. The monitoring sensor according to claim 14, wherein with reception of a certain signal or pressure, the monitoring sensor switches the pressure relief opening from the operating state into the safety state.

18. The monitoring sensor according to claim 14, wherein the adjustment of the pressure relief opening by the sensor element is triggered by means of an electromagnetic coil, a micro servo motor or an electromechanical adjustment unit.

19. The monitoring sensor according to claim 14, wherein the sensor comprises a battery or a mechanically chargeable energy storage, which provide the energy for adjusting the pressure relief opening.

20. The monitoring sensor according to claim 14, wherein the pressure relief opening is designed as a valve, in particular a 2/2-way safety valve.

21. The monitoring sensor according to claim 14, wherein the signal for remote triggering of the sensor elements is transmitted wirelessly or via Bluetooth.

22. The monitoring sensor according to claim 14, wherein the sensor element comprises a housing made of plastic and a base plate made of aluminum.

23. The monitoring sensor according to claim 14, wherein the mechanical construction of the sensor element is designed to be impact- and vibration-resistant in accordance with the operating conditions.

24. The monitoring sensor according to claim 14, wherein the sensor element has an operating temperature range from 0 C. to 80 C.

25. The monitoring sensor according to claim 14, wherein the sensor element has a temperature measurement range from 0 C. to 85 C. and a pressure measurement range from 0 bar to 500 bar.

26. The monitoring sensor according to claim 14, wherein the valve is integrated in the connection section between the connection device and the sensor element.

Description

DRAWINGS

[0021] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0022] FIG. 1 is a side elevation view of a gas pressure spring with a monitoring sensor; and

[0023] FIG. 2 is a schematic diagram of a gas pressure spring with a monitoring sensor.

DETAILED DESCRIPTION

[0024] The disclosure is described below with reference to FIGS. 1 and 2 using an exemplary embodiment example. Identical reference numerals refer to identical structural and/or functional features.

[0025] FIG. 1 is a side elevation view of the monitoring sensor 1 for measuring, receiving and transmitting a physical variable of a gas pressure spring 2. The monitoring sensor 1 includes a sensor element 3 and a pressure relief opening 4. Here, the pressure relief opening 4 can be switched by remote triggering of the sensor element 3 from an operating state into a safety state in order to evacuate the gas pressure spring 2. The monitoring sensor 1 includes a connection device 5. The connection device 5 can be detached in accordance with the intended use. The connection device 5 connects to a coupling 6 of the gas pressure spring 2.

[0026] The sensor element 3 monitors a pressure in the gas pressure spring 2. In addition to the data for the pressure, it optionally determines one or all of the additional variables. They are the temperature, the part number, the part ID, the sensor ID, the position in the tool, the different cycle times, the battery status and the transmission power of the sensor. The sensor element 3 transmits the data wirelessly to a gateway or to a data holder.

[0027] In accordance with the operating conditions of the monitoring sensor 1, the mechanical construction of the sensor element 3 is designed to be impact- and vibration-resistant. The sensor element 3 includes a housing 8, made of plastic, and a base plate 9, made of aluminum.

[0028] Furthermore, the valve 4 of the monitoring sensor 1 is integrated in the connection section between the connection device 5 and the sensor element 3.

[0029] In FIG. 2, a schematic diagram of a gas pressure spring 2 with a monitoring sensor 1 is represented. Here, the monitoring sensor 1 includes the sensor element 3 and the valve 4. With reception of a certain signal or pressure, the monitoring sensor 1 switches the valve 4 from the operating state into the safety state. The adjustment of the valve 4 by the sensor element 3 is triggered by an electromagnetic coil, a micro servo motor or an electromechanical adjustment unit.

[0030] Furthermore, FIG. 2 shows that the valve 4 is designed as a 2/2-way safety valve.

[0031] The signal for the remote triggering of the sensor element 3 is transmitted wirelessly or via Bluetooth. After reception of the signal, the gas pressure spring 2 is evacuated.

[0032] The disclosure is not limited in its embodiment to the above-indicated preferred embodiment examples. Instead, a number of variants are conceivable, which use the represented solution even in embodiments of fundamentally different type.