CN210763867U - Trigger force measuring device for comb plate protection switch of escalator and clamping device thereof - Google Patents

Abstract

The utility model provides a trigger force measuring device for a protection switch of an escalator comb tooth plate and a clamping device thereof. The screwing in and out of the bolt on the clamping block realizes the application of force to the movable clamping piece, so that the movable clamping The gap between the plate and the fixed clamping plate changes to realize the clamping and loosening of the comb-tooth plate, thereby making the force test effect of the comb-tooth plate more accurate. The utility model adopts the method of screwing in and out of the bolt. Adjust the gap between the movable clamping piece and the fixed clamping piece. Since the bolt is screwed in and out through the thread, the adjustment range of the force exerted by the end of the bolt on the movable clamping piece is larger, and the two can be adjusted according to the actual situation. Adjust the gap between the clamping pieces. The clamping device in the utility model has a simple structure, is easy to operate, saves the cost of testing labor, improves the testing efficiency, and is of great significance to the safe operation of the escalator.

Description

Trigger force measuring device of escalator comb-tooth plate protection switch and its clamping device

technical field

The utility model belongs to the technical field of special electromechanical equipment, and in particular relates to a trigger force measuring device of an escalator comb-tooth plate protection switch and a clamping device thereof.

Background technique

The escalator is used more and more frequently in daily life, and it has even become an indispensable infrastructure every day. During the operation of the escalator, it is inevitable that some foreign objects will get stuck in the comb plate of the escalator. At this time, if the elevator continues to run, it will inevitably cause safety accidents. Therefore, the escalator comb plate safety protection device is generally installed at the safety comb plate at the exit and entry ends of the escalator.

During the operation of the escalator, the safety protection device is usually arranged under the floor board, that is, at the entrance and exit of the escalator or moving walkway, under the metal plate connected with the comb plate, and the safety protection device is connected with a safety protection switch. The switch is used to trigger the safety protection device. When a foreign object is caught between the comb plate and the step pedal, an interaction force is generated to drive the floor plate connected to the comb plate to move, so that the safety switch connected to the bottom of the floor plate is triggered. In turn, the escalator is stopped to protect the safety of personnel; however, in the actual operation process, the safety protection switch may be set too small or too large, so that the escalator cannot be closed according to the actual situation.

Therefore, measuring the triggering force required by the safety protection switch, and then adjusting it to set an accurate triggering force is the premise to ensure that the safety protection device can work normally; the current detection requires that the measuring device is clamped by the comb teeth during detection. Lock it on the step tread, and then apply tension or pressure to the comb plate to detect the trigger force. If the measuring device cannot be effectively locked on the step, the subsequent detection of the trigger force will be deviated, and at the same time The clamping device needs to be operated frequently to adjust the magnitude and position of the clamping force, so the structure of the clamping device needs to be as simple as possible and easy to operate.

Utility model content

The purpose of the utility model is to overcome the problems of the above-mentioned prior art that the comb teeth cannot be effectively clamped when the safety protection switch of the escalator comb tooth plate is detected, resulting in deviation of the trigger force measurement result and complex structure of the clamping device.

In order to achieve the above object, the utility model provides the following technical solutions:

The utility model provides a clamping device for a triggering force measuring device of an escalator comb-tooth plate protection switch, the clamping device comprising:

a clamping block, the clamping block is provided with a guide rail for matching with a guide groove on the measuring device so that the clamping block is installed on the measuring device;

The bolt is provided in the screw hole on the clamping block through the thread, and realizes the screwing in and out of the screw hole through the thread, and the screw hole is screwed in the clamping block at the same time. The position on the block is set so that when the bolt is screwed in and out, the end of the bolt contacts and separates from the clamping piece;

Clamping sheet, the clamping sheet is two parallel sheet-like structures protruding from the bottom of the clamping block, and the clamping sheet whose end contacts when the bolt is screwed in is a movable clamping sheet, which is connected with the movable clamp A fixed clamping piece is parallel to the tightening piece, the movable clamping piece is arranged in a through hole running through the upper and lower sides of the clamping block, and one end of the movable clamping piece is connected with the inner wall of the through hole, so as to facilitate the When the bolt is screwed in and out, the extruding displacement of the movable clamping piece changes the gap between the two clamping pieces, thereby realizing clamping and loosening.

Based on the above, the clamping block is provided with two screw holes at intervals, each screw hole is provided with a bolt, and the movable clamping piece and the fixed clamping piece are provided at the corresponding position of each screw hole.

Based on the above, the movable clamping piece is connected with a first connection portion, the first connection portion is connected with a second connection portion, and the movable clamping piece is arranged in parallel with the second connection portion and passes through the first connection portion. The connecting part is connected; the shape of the through hole is set to be used for disposing the movable clamping piece, the first connecting part and the second connecting part, and one end of the second connecting part is connected with the inner wall of the through hole.

Based on the above, the movable clamping piece, the first connecting portion and the second connecting portion are integrally formed.

The utility model also provides a trigger force measuring device for the protection switch of the escalator comb tooth plate, which includes a clamping device, and the clamping device includes:

a clamping block, the clamping block is provided with a guide rail for matching with a guide groove on the measuring device so that the clamping block is installed on the measuring device;

The bolt is provided in the screw hole on the clamping block through the thread, and realizes the screwing in and out of the screw hole through the thread, and the screw hole is screwed in the clamping block at the same time. The position on the block is set so that when the bolt is screwed in and out, the end of the bolt contacts and separates from the clamping piece;

Clamping sheet, the clamping sheet is two parallel sheet-like structures protruding from the bottom of the clamping block, and the clamping sheet whose end contacts when the bolt is screwed in is a movable clamping sheet, which is connected with the movable clamp A fixed clamping piece is parallel to the tightening piece, the movable clamping piece is arranged in a through hole running through the upper and lower sides of the clamping block, and one end of the movable clamping piece is connected with the inner wall of the through hole, so as to facilitate the When the bolt is screwed in and out, the extruding displacement of the movable clamping piece changes the gap between the two clamping pieces, thereby realizing clamping and loosening.

Based on the above, the clamping block is provided with two screw holes at intervals, each screw hole is provided with a bolt, and the movable clamping piece and the fixed clamping piece are provided at the corresponding position of each screw hole.

Based on the above, the movable clamping piece is connected with a first connection portion, the first connection portion is connected with a second connection portion, and the movable clamping piece is arranged in parallel with the second connection portion and passes through the first connection portion. The connecting part is connected; the shape of the through hole is set to be used for disposing the movable clamping piece, the first connecting part and the second connecting part, and one end of the second connecting part is connected with the inner wall of the through hole.

Based on the above, the movable clamping piece, the first connecting portion and the second connecting portion are integrally formed.

Compared with the closest prior art, the technical solution provided by the present utility model has the following excellent effects:

The utility model provides a triggering force measuring device for an escalator comb-tooth plate protection switch and a clamping device thereof. By screwing in and out of the bolt on the clamping block, force is applied to the movable clamping piece, so that the movable clamp The gap between the tightening piece and the fixed clamping piece changes to realize the clamping and loosening of the comb-tooth plate. Since the bolt is screwed in and out through the thread, the adjustment range of the force exerted by the end of the bolt on the movable clamping piece is larger, and the gap between the two clamping pieces can be adjusted according to the actual situation.

The utility model can lock the measuring device on the step tread, so that the force test effect on the comb tooth plate is more accurate. Trigger force, adjust the trigger mechanism of the safety switch, so that the trigger force of the comb plate safety switch is within the set range to ensure the normal and safe operation of the escalator.

Description of drawings

1 is a partial cross-sectional view of a clamping device in an embodiment of the present utility model;

Fig. 2 is the front view of the clamping device in the embodiment of the utility model;

Fig. 3 is the side view of the clamping device in the embodiment of the utility model;

4 is a three-dimensional oblique view of the clamping device in the embodiment of the present utility model;

5 is a three-dimensional top view of the clamping device in the embodiment of the present invention;

6 is a three-dimensional bottom view of the clamping device in the embodiment of the present utility model;

7 is a schematic structural diagram of a measuring device in an embodiment of the present invention;

8 is a schematic diagram of a horizontal trigger force measurement performed by a measuring device in an embodiment of the present invention;

FIG. 9 is a structural diagram of a movable clamping piece in an embodiment of the present invention.

In the figure: 101, screw hole; 102, screw hole; 1, bolt; 2, bolt; 3, movable clamping piece; 31, first connecting part; 32, second connecting part; 4, fixed clamping piece; 5 , movable clamping piece;

6. Fixed clamping piece; 7. Trapezoidal guide rail; 8. Rectangular guide rail; 9. Trapezoidal guide groove; 10. Rectangular guide groove; 11. Main structure;

12. Rotating lever; 13. Pulling pressure sensor; 14. Ball hinge; 15. Pulling pressure indicator; 16. Pulling pressure rod; 17. Steps; 18. Comb plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

In the description of the present invention, the indicated azimuth or positional relationship is based on the azimuth or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific azimuth. It should not be construed as a limitation of the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection; it may be directly connected or indirectly connected through intermediate components. For those of ordinary skill, the specific meanings of the above terms can be understood according to specific situations.

The utility model provides an escalator comb plate protection switch trigger force measuring device and its clamping device. Figure 1 shows a partial cross-sectional view of the clamping device in this embodiment. The device includes a clamping block, and two screw holes 101 and 102 are arranged on the clamping block, and the two screw holes are used to install the bolt 1 and the bolt 2, as shown in Figure 2; 2 is the front view of the clamping block, then the view in Figure 1 is the bottom surface of the clamping block, two sets of clamping pieces are protruding from the bottom surface of the clamping block, and each group of clamping pieces corresponds to a bolt; The clamping pieces are two parallel sheet-like structures, one of which is a movable clamping piece and the other is a fixed clamping piece. As shown in Figure 1, the movable clamping piece 3 and the fixed clamping piece 4 are grouped together. The clamping piece 5 and the fixed clamping piece 6 are another group.

As can be seen from Figure 1 and Figure 5, when the bolt 1 is screwed in, the clamping piece that its end contacts is the movable clamping piece 3, and the one parallel to the movable clamping piece 3 is the fixed clamping piece 4, and the fixed clamping piece 4 It is arranged on the clamping block and there is a gap between it and the movable clamping piece 3; the movable clamping piece 3 is arranged in a through hole that runs through the upper and lower sides of the clamping block, and one end of the movable clamping piece 3 is connected to the inner wall of the through hole, which is convenient for When the bolt 1 is screwed in and out, the extruding displacement of the movable clamping piece 3 changes the gap between the movable clamping piece 3 and the fixed clamping piece 4, thereby realizing clamping and loosening.

Similarly, the movable clamping piece 5 is also arranged in the through hole penetrating the upper and lower sides of the clamping block, and one end of the movable clamping piece 5 is also connected with the inner wall of the through hole, which is convenient for the movable clamping piece 5 when the bolt 2 is screwed in and out. The extruded displacement changes the gap between the movable clamping piece 5 and the fixed clamping piece 6, so as to realize clamping and loosening. In the process of use, put the clamping piece into the groove of the tread comb, apply force to the movable clamping piece by rotating the bolt, and then squeeze the movable clamping piece to make the contact between the movable clamping piece and the fixed clamping piece The gap becomes smaller to clamp the tread comb teeth, so as to achieve the purpose of fixing.

As shown in FIG. 9 , one end of the movable clamping piece is connected to the inner wall of the through hole through two connecting parts. Taking the movable clamping piece 3 in this embodiment as an example, the movable clamping piece 3 is connected with a first connecting part 31 . The first connecting part 31 is connected with a second connecting part 32, and the movable clamping piece 3 is arranged in parallel with the second connecting part 32 and connected by the first connecting part 31; the shape of the through hole is set to be used for arranging the movable clamping piece 3, The first connecting portion 31 and the second connecting portion 32, one end of the second connecting portion 32 is connected to the inner wall of the through hole. In this embodiment, the movable clamping piece, the first connecting portion and the second connecting portion can be integrally formed or connected, and different forming methods can be selected according to the processing technology.

As shown in Figure 2, in this embodiment, both ends of the clamping device are provided with guide rails 7 and guide rails 8, wherein the guide rails 7 are trapezoidal guide rails, and the guide rails 8 are rectangular guide rails. The trapezoidal guide groove 9 and the rectangular guide groove 10 are engaged, and the clamping device is installed on the measuring device as shown in FIG. 7 . In other embodiments, the shapes of the guide rail and the corresponding guide groove are not limited to the structures given in this embodiment. Other mounting structures can be used as required.

As shown in FIG. 7, two clamping devices can be installed on the measuring device. The measuring device includes a main structure 11. The two clamping devices are symmetrically arranged on both sides of the main structure 11. The main structure 11 is provided with a tension and pressure transmission structure. Rotate the lever 12, the pull pressure sensor 13, the ball twist 14, the pull pressure indicator 15 and the pull pressure rod 16; one end of the pull pressure sensor 13 and the pull pressure rod 16 are connected through the ball twist 14; The head of the rod 16 is provided with a barb with a comb tooth slot, which is convenient for hooking the lower edge of the comb tooth plate when detecting the safety protection switch triggered by the up and down movement.

The tension pressure sensor 13 is used to measure the tension pressure on the tension and compression rod 16, the tension pressure display 15 is connected with the upper plane of the tension and compression rod 16, and the tension pressure display 15 is connected with the tension pressure sensor 13 through a data line for receiving the tension pressure. The force measured by the sensor 13 is processed by data and displayed on the display screen in real time, which is convenient for testers to read.

In this embodiment, the tension and pressure display 15 has a memory function, an alarm function and a Bluetooth function; the tension and pressure display 15 has a memory function, which can record 20 recent measured data, and can browse through the buttons next to the display screen. The pull pressure display 15 also has an alarm function, which can be used when adjusting the triggering force of the safety switch. According to the maximum pull pressure set within a reasonable pull pressure range, the early warning pull force and the early warning pressure are set in advance. When the pull pressure reaches the early warning pull force Or when pre-warning pressure, the pull-pressure indicator 15 directly emits a buzzing sound, indicating that the triggering force of the safety switch of the comb-tooth plate is too large, and the escalator cannot be stopped in time when a foreign object is caught in the running, which threatens the safety of passengers, and the measurement can be stopped at this time. Adjust the safety switch until the trigger force is within the set reasonable range; the alarm function can prevent the measuring device from being damaged due to excessive force; the tension and pressure display 15 also has the Bluetooth function, which can transmit the measured tension and pressure data to the mobile phone, Mobile clients such as tablet computers can store multiple measurement data, which is convenient for later statistics of the entire measurement situation to obtain the pass rate of the escalator safety switch.

When measuring the trigger force of the safety switch, first install the clamping device in this embodiment on the measuring device through the guide rail, then adjust the measuring device and the tension and pressure rod 16 to the proper position, and fix the entire measuring device on the step 17, Then, the movable clamping piece and the fixed clamping piece of the clamping device are clamped into the comb tooth slot, and the bolts are screwed in to lock the measuring device on the tread of the step 17 . The rotation lever 12 is rotated by hand to realize the expansion and contraction of the tension and compression rod 16. During this process, the tension pressure sensor 13 measures the force transmitted by the tension and compression rod 16 through the ball twist 14, and transmits the measured data through the data line. The tension and pressure display 15 is provided, and the tension and pressure display 15 displays the measured force in real time through the display screen after data processing. In this embodiment, the process of turning the rotating lever 12 to rotate to realize the expansion and contraction of the pulling and pressing lever 16 belongs to the prior art. Please refer to the Chinese utility model patent with the application number of 201821482490.3, which discloses an escalator comb-tooth plate safety The protective switch triggers the force measuring device.

To sum up, the triggering force measuring device of the escalator comb-tooth plate protection switch and its clamping device provided by the utility model realize the application of force to the movable clamping piece by screwing in and out of the bolt, so that the movable clamping piece can be The gap between it and the fixed clamping piece changes, so that the measuring device is locked on the steps, so that the force test effect on the comb-tooth plate is more accurate. The gap between the clamping piece and the fixed clamping piece, because the bolt is screwed in and out through the thread, the adjustment range of the force exerted by the end of the bolt on the movable clamping piece is larger, and the two clamping pieces can be clamped according to the actual situation. Adjust the gap between the sheets.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are all within the scope of the present invention. Within the scope of protection of the new type of pending claims.

Claims (8)

1. The utility model provides an automatic staircase fishback protection switch triggers clamping device of power measuring device which characterized in that, clamping device includes:

the clamping block is provided with a guide rail which is matched with a guide groove on a measuring device so that the clamping block is installed on the measuring device;

the bolt is arranged in a screw hole in the clamping block through threads, screwing-in and screwing-out of the bolt in the screw hole are achieved through the threads, and meanwhile, the position of the screw hole on the clamping block is set to enable the tail end of the bolt to be in contact with and separated from the clamping sheet when the bolt is screwed in and screwed out;

the clamping piece is two parallel sheet structures protruding from the bottom of the clamping block, when the bolt is screwed in, the clamping piece in contact with the tail end of the bolt is a movable clamping piece, the clamping piece is parallel to the movable clamping piece and is a fixed clamping piece, the movable clamping piece is arranged in a through hole penetrating through the upper surface and the lower surface of the clamping block, one end of the movable clamping piece is connected with the inner wall of the through hole, the bolt is convenient to extrude and displace the movable clamping piece when being screwed in and out, so that a gap between the two clamping pieces is changed, and clamping and loosening are realized.

2. The clamping device of the trigger force measuring device of the escalator comb plate protection switch according to claim 1, wherein two screw holes are formed in the clamping block at intervals, one bolt is arranged in each screw hole, and the movable clamping piece and the fixed clamping piece are arranged at positions corresponding to the screw holes.

3. The clamping device of an escalator comb plate protection switch trigger force measuring device according to claim 1 or 2, characterized in that the movable clamping piece is connected with a first connecting portion, the first connecting portion is connected with a second connecting portion, and the movable clamping piece is arranged in parallel with the second connecting portion and connected through the first connecting portion; the shape of through-hole sets up to be used for setting up activity clamp plate, first connecting portion and second connecting portion, the one end of second connecting portion with the inner wall of through-hole is connected.

4. The clamping device of an escalator comb plate protection switch trigger force measuring device according to claim 3, wherein the movable clamping piece, the first connecting portion and the second connecting portion are integrally formed.

5. The utility model provides an automatic staircase fishback protection switch triggers power measuring device, includes clamping device, its characterized in that, clamping device includes:

the clamping block is provided with a guide rail which is matched with a guide groove on a measuring device so that the clamping block is installed on the measuring device;

the bolt is arranged in a screw hole in the clamping block through threads, screwing-in and screwing-out of the bolt in the screw hole are achieved through the threads, and meanwhile, the position of the screw hole on the clamping block is set to enable the tail end of the bolt to be in contact with and separated from the clamping sheet when the bolt is screwed in and screwed out;

the clamping piece is two parallel sheet structures protruding from the bottom of the clamping block, when the bolt is screwed in, the clamping piece in contact with the tail end of the bolt is a movable clamping piece, the clamping piece is parallel to the movable clamping piece and is a fixed clamping piece, the movable clamping piece is arranged in a through hole penetrating through the upper surface and the lower surface of the clamping block, one end of the movable clamping piece is connected with the inner wall of the through hole, the bolt is convenient to extrude and displace the movable clamping piece when being screwed in and out, so that a gap between the two clamping pieces is changed, and clamping and loosening are realized.

6. The escalator comb plate protection switch trigger force measuring device as claimed in claim 5, wherein the clamping block is provided with two screw holes at intervals, each screw hole is provided with a bolt, and the movable clamping piece and the fixed clamping piece are arranged at the corresponding position of each screw hole.

7. The escalator comb plate protection switch trigger force measuring device according to claim 5 or 6, wherein the movable clamping piece is connected with a first connecting portion, the first connecting portion is connected with a second connecting portion, and the movable clamping piece is arranged in parallel with the second connecting portion and is connected with the second connecting portion through the first connecting portion; the shape of through-hole sets up to be used for setting up activity clamp plate, first connecting portion and second connecting portion, the one end of second connecting portion with the inner wall of through-hole is connected.

8. An escalator comb plate protection switch trigger force measuring device according to claim 7, wherein the movable clamping piece, the first connecting portion and the second connecting portion are integrally formed.

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