CN220729511U

CN220729511U - Door anti-extrusion force detection is with bumping board and use detection device who bumps board

Info

Publication number: CN220729511U
Application number: CN202320911562.6U
Authority: CN
Inventors: 谷宇; 叶文旭; 徐泽东
Original assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Current assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2024-04-05
Anticipated expiration: 2033-04-21

Abstract

The utility model discloses a collision plate for detecting extrusion force prevention of doors and a detection device using the collision plate. The door extrusion-proof force detection device using the impact plate is characterized in that the force sensor assembly is connected with the impact plate, so that the force is transmitted to the force sensor through the compression spring force, and the force measurement purpose is achieved. The other door extrusion force preventing detection device using the impact plate drives the left second spring piece to move relatively after being subjected to door clamping force, and receives stress data through the strain gauge adhered to the spring piece, so that the force measuring purpose is achieved.

Description

Door anti-extrusion force detection is with bumping board and use detection device who bumps board

Technical Field

The utility model relates to the technical field of detection devices, in particular to a collision plate for detecting extrusion force of doors and a detection device using the collision plate.

Background

In the subway operation process, the complicated conditions of crowding, rushing robbing and the like of passengers entering and exiting the door exist, and the accident of clamping the door of the passenger room frequently occurs. In order to prevent accidents of passenger pinching caused by excessive door pinching force, the pinching force of the subway door needs to be detected regularly. The existing door type extrusion-proof force detection device can only detect extrusion force to four limbs and can not further detect extrusion force to fingers due to structural limitation. The utility model patent with the publication number of CN202220205551.1 discloses a rail transit train door clamping force testing device, and the testing of different opening and closing widths of a train door is completed through the cooperation of an extension block and the door clamping force testing device, but the detection range cannot be further narrowed due to the limitation of a stress plate structure, and the device can cause overlarge stress when using fewer spring plates, so that the service life of a product is shortened, and if the stress is improved by adopting a plurality of spring plates, the weight of the product is increased, so that the actual detection work is not facilitated.

Disclosure of Invention

The utility model aims to: a first object of the present utility model is to provide a door type impact plate for detecting a pressing force, which can further reduce the detection range; a second object of the present utility model is to provide two kinds of high-precision portable door-like anti-extrusion force detection apparatuses using the impact plate, which can display detection data in real time.

The technical scheme is as follows: the utility model provides a collision plate for detecting extrusion force prevention of doors, which comprises a first collision plate and a second collision plate, wherein the first collision plate comprises a first collision plate upper beam, a first collision plate middle beam, a first collision plate lower beam and a first skin, the first collision plate upper beam, the first collision plate middle beam and the first collision plate lower beam are fixedly connected to the first skin, the second collision plate upper beam, the second collision plate lower beam and the second skin are fixedly connected to the second skin, and each beam on the first collision plate and each beam on the second collision plate are staggered in the longitudinal position.

Further, the two sides of the second collision plate and the first collision plate are detachably connected with the lengthening blocks for adjusting the measuring width.

The utility model provides a door extrusion-proof force detection device, which comprises a shell, a force measurement device, an analysis display device and a door extrusion-proof force detection collision plate, wherein the force measurement device comprises a force sensor assembly and a pressure spring assembly; the second hits board outside and shell fixed connection, inboard and force sensor subassembly one side fixed connection, force sensor subassembly opposite side and pressure spring subassembly are connected, pressure spring subassembly opposite side and first hits board fixed connection, force sensor subassembly transmits the dynamometry signal to analysis display device.

In the moving process of the first striking plate, after the tested object is clamped along the horizontal direction, the clamping force is sequentially transmitted according to the first striking plate, the pressure spring assembly and the sensor assembly. The skin surface of second hits the board and first hits the board is the atress face of the tight power of measured object clamp, and sensor assembly is connected with the second hits the board to transmit to sensor assembly through compression spring force, reach the dynamometry purpose, the sensor assembly transmits the dynamometry signal to analysis display device, shows the dynamometry value in real time.

Further, a sliding component is arranged between the first collision plate and the second collision plate and comprises a guide rail and a sliding block, the guide rail is fixedly connected with the second collision plate, and the sliding block is fixedly connected with the first collision plate and used for guaranteeing a horizontal movement track, reducing sliding friction force and improving accuracy of force measurement.

Further, the pressure spring assembly comprises a pressure spring, the pressure spring assembly side is equipped with pressure regulation subassembly, pressure regulation subassembly includes first spring holder and spring regulation pole, first spring holder one end and first clash board afterbody fixed connection, the other end stretches into in the pressure spring, first spring holder middle part be equipped with spring regulation pole complex internal thread, the spring regulation pole can screw in the first spring holder, adjusts spring pressure through changing the length of screw in regulating rod, improves the commonality of device.

Furthermore, the compression springs in the compression spring assembly can further improve the precision of the spring stiffness through the matching of the size compression springs.

Further, the force sensor assembly comprises a second spring seat, a force sensor and a force sensor support, wherein the force sensor support is fixedly connected with the tail part of the second collision plate, the front end of the second spring seat stretches into the pressure spring, the diameter of the tail end of the second spring seat is larger than that of the pressure spring, and the force sensor is arranged in the middle of the second spring seat.

The utility model provides another door extrusion-proof force detection device, which comprises a shell, a leaf spring force measuring mechanism, an analysis display mechanism and a door extrusion-proof force detection striking plate, wherein the leaf spring force measuring mechanism is arranged in the shell through a bottom plate and comprises two parallel and equal leaf springs and two parallel and equal spring clamping plates, the leaf springs and the spring clamping plates form a parallelogram structure, the striking plate is fixedly connected with the leaf springs, when the striking plate is extruded, one group of opposite edges formed by the two leaf springs deform the same, the other group of opposite edges formed by the upper leaf clamping plate and the lower leaf clamping plates move relatively in parallel, a plurality of strain gauges are arranged on force measuring points of the leaf springs, and the strain gauges are electrically connected with the analysis display mechanism.

Further, the leaf spring is divided into a leaf spring moving fixed end, a leaf spring stress part and a leaf spring static fixed end. The stationary fixed end of the leaf spring makes the leaf spring into a whole.

Further, the leaf springs comprise a first leaf spring and a second leaf spring, four U-shaped grooves are respectively formed in the first leaf spring and the second leaf spring, the U-shaped grooves divide the leaf springs into an upper stress area, a middle stress area, a lower stress area and a middle stress area, the total widths of the upper reed and the middle reed are equal to the total widths of the middle reed and the middle reed, the middle reed and the lower reed are equal to each other, after the impact plate is stressed, the first impact plate drives the upper reed, the middle reed and the lower reed to deform and compress, and the second impact plate drives the middle reed and the middle reed to deform and compress.

Further, the first striking plate is connected with the first stop block, and the first striking plate and the first stop block jointly move inwards after being stressed, and the second striking plate is connected with the second stop block, and the second striking plate and the second stop block jointly move inwards after being stressed.

Further, the front end of the shell is provided with two baffles, the baffles are flush with the shell, and after the collision plate moves to the middle position, the baffles play a role in shielding.

Further, a display screen is arranged on the analysis display mechanism, and a certain angle is formed between the display screen and the upper top surface of the shell.

The beneficial effects are that: compared with the prior art, the utility model has the following advantages:

(1) The collision plates for detecting the door extrusion force further reduce the minimum detection distance in a staggered arrangement mode of the first collision plate supporting beams and the second collision plate supporting beams;

(2) The spiral compression spring is adopted to replace a common spring plate, so that the service life of the product is prolonged;

(3) The compression springs in the compression spring assembly can be matched with the compression springs in size, so that the precision of the spring stiffness can be further improved;

(4) The analysis display module is in communication connection with the force detection device, so that the detection result can be detected and displayed in real time.

Drawings

FIG. 1 is a schematic view of a striker structure of the present utility model;

FIG. 2 is a schematic diagram of a first apparatus according to the present utility model;

fig. 3 is a schematic view of the compression spring structure of the first device of the present utility model;

FIG. 4 is an exploded view of a force measuring device of the first device of the present utility model;

FIG. 5 is a schematic view of the housing structure of the first device of the present utility model;

FIG. 6 is a schematic diagram of an analysis display device of the first device of the present utility model;

FIG. 7 is a schematic diagram of a second apparatus according to the present utility model;

FIG. 8 is a schematic diagram of a housing structure of a second device of the present utility model;

FIG. 9 is an exploded view of a leaf spring force measuring mechanism of the second device of the present utility model;

FIG. 10 is an assembled view of a leaf spring force measuring mechanism of the second device of the present utility model;

FIG. 11 is a schematic diagram of the operation of the leaf spring force measuring mechanism of the second device of the present utility model;

fig. 12 is a schematic view of a leaf spring of a second apparatus of the present utility model.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1, the impact plate for detecting the extrusion force of the door class comprises a first impact plate 1 and a second impact plate 2, wherein the first impact plate 1 comprises a first impact plate upper beam 11, a first impact plate middle beam 12, a first impact plate lower beam 13 and a first skin 14, the first skin 14 covers the first impact plate upper beam 11, the first impact plate middle beam 12 and the first impact plate lower beam 13 into the first impact plate 1, the second impact plate 2 comprises a second impact plate upper beam 21, a second impact plate lower beam 22 and a second skin 23, the second impact plate upper beam 21, the second impact plate middle beam 22 and the first impact plate lower beam 22 cover the second impact plate 2, and the cross beams on the first impact plate 1 and the cross beams on the second impact plate 2 are staggered in the longitudinal position. The two sides of the second collision plate 2 and the first collision plate 1 are detachably connected with an extension block for adjusting the measurement width. When the anti-extrusion force detection device is used, the first collision plate 1 and the second collision plate 2 are compressed at the relative positions after being subjected to extrusion force, and due to the fact that all cross beams are arranged in a staggered mode, the two collision plates can be tightly attached under limited compression, the size after compression is further reduced, and the larger force measuring range of force measuring equipment is met.

Example 2

The utility model relates to a door extrusion-proof force detection device, which comprises a shell 1, a force measuring device 3 and an analysis display device 4. The force measuring device 3 comprises a force sensor assembly 31 and a pressure spring assembly 32, the outer side of the second collision plate 2 is fixedly connected with the shell 1, displacement change is avoided after the second collision plate 2 is pressed, the inner side of the second collision plate is fixedly connected with one side of the force sensor assembly 31, the other side of the force sensor assembly 31 is connected with the pressure spring assembly 32, and the other side of the pressure spring assembly 32 is fixedly connected with the first collision plate 1; the sliding assembly 5 is arranged between the first collision plate 1 and the second collision plate 2, the sliding assembly 5 comprises a guide rail 51 and a sliding block 52, a protruding cross beam in the middle of the second collision plate 2 is fixedly connected with the guide rail 51 in the sliding assembly 5, upper and lower beams of the second collision plate 2 are respectively connected with the sliding block 52 in the sliding assembly 5, the sliding assembly is used for guaranteeing a horizontal movement track, reducing sliding friction force and improving accuracy of force measurement, and the first collision plate 1 moves horizontally to the second collision plate 2 along the sliding assembly 5 after being stressed. The pressure spring assembly 32 comprises a pressure spring 321, a pressure adjusting assembly 33 is arranged on the side face of the pressure spring assembly 32, the pressure adjusting assembly 33 comprises a first spring seat 331 and a spring adjusting rod 332, one end of the first spring seat 331 is fixedly connected with the tail portion of the first collision plate 1, the other end of the first spring seat 331 stretches into the pressure spring 321, an internal thread matched with the spring adjusting rod 332 is arranged in the middle of the first spring seat 331, the spring adjusting rod 332 can be screwed into the first spring seat 331, spring pressure is adjusted by changing the length of the screw-in adjusting rod, and the universality of the device is improved by adjusting the movement displacement of different measured objects. The force sensor assembly 31 comprises a second spring seat 311, a force sensor 312 and a force sensor support 313, the force sensor support 313 is fixedly connected with the tail of the second collision plate 2 in a stepped mode, the front end of the second spring seat 311 stretches into the pressure spring 321 to keep coaxiality, the diameter of the tail end of the second spring seat 311 is larger than that of the pressure spring 321, and the force sensor 31 is arranged in the middle of the second spring seat. The analysis display device 4 is fixedly connected to the outside of the shell, the analysis display device 4 comprises a power supply assembly 41, a circuit board 42 and a display screen 43, the power supply assembly is electrically connected with the circuit board 42 and the display screen 43, the circuit board 42 is electrically connected with the display screen 43, the force sensor assembly 4 is in communication connection with the circuit board 42, and the force sensor assembly 31 transmits force measurement signals to the analysis display device 4. The handle is arranged on the shell, the handle is a cantilever handle, the cantilever handle is fixed on the shell through a handle lengthening block, and the end head of the first striking plate 1 in the shell is provided with a spring-back displacement limiting device for limiting the spring-back displacement of the first striking plate 1 and preventing the spring-back of the first striking plate 1 from exceeding the limit.

Before measurement, an operator selects lengthened blocks with different widths according to the measured distance to be matched and connected with the outer sides of the first collision plate 1 and the second collision plate 2, when the measurement is performed, the first collision plate 1 moves towards the second collision plate 2 along the sliding component 5 under the pressure action of a measured object, the pressure spring 501 is compressed along the horizontal direction, the second collision plate 2 is kept still all the time in the process, after the measured object 1 is clamped along the horizontal direction, the clamping force is sequentially transmitted according to the sequence of the first collision plate 1, the pressure spring 321 and the force sensor component 4, the skin surfaces of the second collision plate 2 and the first collision plate 3 are stressed surfaces of the clamping force of the measured object, the force sensor component 4 is connected with the second collision plate 2, so that the force measurement purpose is achieved through the transmission of the compression spring force, the force sensor 312 transmits a force measurement signal to the analysis display device 4, the circuit board 42 collects data detected by the force sensor 43 and analyzes the analyzed data, and the analyzed data are displayed on the display screen 43. When the tested object is relaxed, the pressure spring 321 rebounds to drive the first striker plate 1 to return to the original position, and the rebound displacement is limited by the baffle plate in the rebound process, so that the rebound is prevented from being excessively limited.

Example 3

The utility model relates to a door extrusion-proof force detection device, which comprises a shell, a leaf spring force measuring mechanism 7, an analysis display mechanism 8 and a door extrusion-proof force detection collision plate, wherein the leaf spring force measuring mechanism comprises two parallel and equal leaf springs 71 and two parallel and equal spring clamping plates 72, the leaf springs 71 and the spring clamping plates 72 form a parallelogram structure, the collision plate is fixedly connected with the leaf springs 71, when the collision plate is extruded, a group of opposite sides formed by the two leaf springs 71 deform the same, the other group of opposite sides formed by the upper leaf clamping plates and the lower leaf clamping plates 72 move relatively in parallel, a plurality of strain gages are arranged on force measuring points of the leaf springs 71, after receiving door clamping force, the measuring points are strained, sensitive grids in the strain gages deform along with the strain gages to change the resistance of the sensitive grids, the resistance change is measured after data processing, and the resistance change is converted into stress conditions of the measuring points and transmitted to the analysis display mechanism 8.

The leaf spring part 71 is a leaf spring moving fixed end 7101, a leaf spring stress part 7102 and a leaf spring static fixed end 7103, and the leaf spring static fixed end 7103 enables the leaf spring to be a whole. The analysis display mechanism 8 is provided with a display screen 81, and a certain angle is formed between the display screen and the upper top surface of the shell so as to be convenient for reading numerical values. The leaf spring stationary end 7103 is firmly adhered with a strain gauge, and when the leaf spring is stressed and deformed, the measuring point is strained, and data is transmitted to the analysis display mechanism 8 for data processing and conversion into measured anti-pinch force, and the measured anti-pinch force is displayed on the display screen 81 in real time. The leaf springs comprise a first leaf spring 711 and a second leaf spring 712, four U-shaped grooves 713 are respectively arranged on the first leaf spring 711 and the second leaf spring 712, the U-shaped grooves 713 divide the leaf spring 71 into an upper part stress area, a middle part stress area, a lower part stress area and a middle part stress area, wherein the total widths of the upper leaf spring, the middle part stress area and the lower part stress area are equal, the total widths of the upper leaf spring, the middle leaf spring and the lower leaf spring are equal, when the first striking plate 1 drives the upper leaf spring, the middle leaf spring and the lower leaf spring to deform and compress, and the second striking plate 2 drives the upper leaf spring, the middle leaf spring and the lower leaf spring to deform and compress. The second striker upper beam 21 fixes the fixed end of the second upper spring plate 7122 by connecting with the right end of the upper middle linkage block 732, and the left end of the upper middle linkage block 732 fixes the fixed end of the first upper spring plate 7112 by connecting with the upper moving fixed block 742; the second striker lower beam 22 fixes the stationary end of the second middle lower spring plate 7124 by being connected to the right end of the middle lower link 734, and the left end of the middle lower link 734 fixes the stationary end of the first middle lower spring plate 7114 by being connected to the middle lower moving fixed block 744. The first striker plate upper beam 11 fixes the fixed end of the first upper spring piece 7111 by being connected with the left end of the upper linkage block 731, and the right end of the upper linkage block 731 fixes the fixed end of the second upper spring piece 7121 by being connected with the upper movable fixing block 741; the first striking plate middle beam 12 fixes the fixed end of the first middle spring leaf 7123 by being connected with the left end of the middle linkage block 733, and the right end of the middle linkage block 733 fixes the fixed end of the second middle spring leaf 7123 by being connected with the moving fixed block 743; the first striker plate lower beam 13 fixes the first lower spring piece stationary end by being connected to the left end of the lower linkage block 735, and the right end of the lower linkage block 735 fixes the second lower spring piece 7125 stationary end by being connected to the moving lower fixing block 745. The first striker plate 1 is connected to the first stopper 78, and moves rightward together when the first striker plate is pressed, and the second striker plate 2 is connected to the second stopper 79, and moves leftward together when the second striker plate is pressed. The stop block is used for installing the long rod induction circuit board, longitudinally limiting the measured object, guaranteeing the safety of force measurement, and shielding the internal stress part in the process of the stress movement of the collision plate. The front end of the shell is provided with two baffles, the baffles are flush with the shell, and after the collision plate moves to the middle position, the baffles play a role in shielding, so that the transverse size of the leaf spring type force measuring device is reduced.

Claims

1. The utility model provides a door class extrusion force prevention detects with bumping board, its characterized in that, including first board (1) and second bump board (2) bump, first board (1) bump roof beam (11), first board middle beam (12), first board lower beam (13), first covering (14) bump, first board upper beam (11), first board middle beam (12), first board lower beam (13) fixed connection is on first covering (14), second bump board (2) bump board upper beam (21), second bump board lower beam (22), second covering (23) including the second, second bump board upper beam (21) and second bump board lower beam (22), second covering (23), second bump board upper beam (21), second bump board lower beam (22) fixed connection and be on second covering (23), each crossbeam on first board (1) bump board upper beam with each longitudinal position is crisscross on second bump board (2).

2. The collision board for detecting the extrusion force prevention of the doors according to claim 1, wherein the second collision board (2) is detachably connected with the two sides of the first collision board (1) and the lengthening block (9) for adjusting the measuring width.

3. A door-like anti-extrusion force detection device using the impact plate according to claim 1 or 2, comprising a housing, characterized by further comprising a force measuring device (3) comprising a force sensor assembly (31), a compression spring assembly (32), an analysis display device (4) and the impact plate according to claim 1; the second hits board (2) outside and shell fixed connection, inboard and force sensor subassembly (31) one side fixed connection, force sensor subassembly (31) opposite side and pressure spring subassembly (32) are connected, pressure spring subassembly (32) opposite side and first board (1) fixed connection that hits, force sensor subassembly (31) are with the transmission of dynamometry signal to analysis display device (4).

4. A door type extrusion-proof force detecting device according to claim 3, characterized in that a sliding component (5) is arranged between the first striking plate (1) and the second striking plate (2), the sliding component (5) comprises a guide rail (51) and a sliding block (52), the guide rail (51) is fixedly connected with the second striking plate (2), and the sliding block (52) is fixedly connected with the first striking plate (1).

5. The door extrusion-force-preventing detection device according to claim 3, wherein the compression spring assembly (32) comprises a compression spring (321), a pressure adjusting assembly (33) is arranged on the side face of the compression spring assembly (32), the pressure adjusting assembly (33) comprises a first spring seat (331) and a spring adjusting rod (332), one end of the first spring seat (331) is fixedly connected with the tail of the first striking plate (1), the other end of the first spring seat extends into the compression spring (321), an internal thread matched with the spring adjusting rod (332) is arranged in the middle of the first spring seat (331), and the spring adjusting rod (332) can be screwed into the first spring seat (331).

6. The door type anti-extrusion force detecting device according to claim 5, wherein the compression spring (321) is selected by a large spring and a small spring.

7. A door type anti-extrusion force detection device according to claim 3, wherein the force sensor assembly (31) comprises a second spring seat (311), a force sensor (312) and a force sensor support (313), the force sensor support (313) is fixedly connected with the tail of the second collision plate (2), the front end of the second spring seat (311) stretches into a pressure spring (321), the diameter of the tail end of the second spring seat is larger than that of the pressure spring (321), and the force sensor (312) is arranged in the middle of the second spring seat.

8. A door-like anti-extrusion force detection apparatus according to claim 3, wherein a shutter (6) for restricting the rebound of the first striker (1) to an excessive limit is provided in the housing.

9. The door extrusion force preventing detection device using the impact plate according to claim 1 or 2 is characterized by comprising a shell, a leaf spring force measuring mechanism (7), an analysis display mechanism (8) and the impact plate according to claim 1, wherein the leaf spring force measuring mechanism (7) is installed in the shell through a bottom plate, the leaf spring force measuring mechanism (7) comprises two parallel and equal leaf springs (71) and two parallel and equal spring clamping plates (72), the leaf springs (71) and the spring clamping plates (72) form a parallelogram structure, the impact plate is fixedly connected with the leaf springs, when the impact plate is extruded, one group of opposite edges formed by the two leaf springs deform the same, the other group of opposite edges formed by the upper leaf spring and the lower leaf spring clamping plates move relatively in parallel, a plurality of strain gauges are arranged on force measuring points of the leaf springs, and the strain gauges are electrically connected with the analysis display mechanism (8).

10. The door-like anti-extrusion force detecting device according to claim 9, wherein the leaf spring (71) is divided into a leaf spring moving fixed end (7101), a leaf spring force receiving portion (7102), and a leaf spring stationary fixed end (7103), and the leaf spring stationary fixed end (7103) makes the leaf spring as a whole.

11. The door type anti-extrusion force detecting device according to claim 10, wherein the leaf spring (71) comprises a first leaf spring (711) and a second leaf spring (712), four U-shaped grooves (713) are respectively arranged on the first leaf spring (711) and the second leaf spring (712), the U-shaped grooves (713) divide the leaf spring (71) into upper, middle and lower five stress areas, wherein the total widths of the upper, middle and lower reeds are equal to the total widths of the middle, middle and lower reeds, the first striking plate (1) drives the upper, middle and lower reeds to deform and compress after the striking plate is stressed, and the second striking plate (2) drives the middle, middle and lower reeds to deform and compress.

12. The door type anti-extrusion force detecting apparatus according to claim 9, wherein the first striker plate (1) is connected to the first stopper (78), and moves inward after being pressed, and the second striker plate (2) is connected to the second stopper (79), and moves inward after being pressed.

13. The door type anti-extrusion force detecting device according to claim 9, wherein two baffles are arranged at the front end of the shell, the baffles are flush with the shell, and the baffles play a role of shielding when the collision plate moves to the middle position.

14. The door anti-extrusion force detection device according to claim 9, wherein the analysis display mechanism (8) is provided with a display screen (81), and a certain angle is formed between the display screen (81) and the upper top surface of the shell.