A gear box shock resistance testing apparatus

Abstract

The application discloses a kind of gear box impact test equipment, belong to gear box impact test technical field, the present scheme includes probe test mechanism, stamping drive structure, box container, test table, mobile through slot and top support frame;To solve the problem that the existing gear box impact test scheme is difficult to indicate the multiple positions of deformation generated by impact on different gear boxes, the present application proposes a probe test mechanism, the condition of several groups of small indicator lights on four groups of mobile display panels being extinguished and lit reflects the condition of deformation generated by impact on the gear box in the box container, if more small indicator lights are lit, it indicates that there are more deformed parts on the gear box, if fewer small indicator lights are lit, it indicates that there are fewer deformed parts on the gear box, to quickly evaluate the specific position of deformation of the gear box after impact processing.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of gear box impact resistance test, and particularly relates to a gear box impact resistance test equipment. BACKGROUND

[0002] Gear boxes are widely applied, for example, in mechanical transmission structures such as wind turbine generators, and the gear box is an important mechanical component widely applied in the wind turbine generator, which mainly functions to transmit power generated by a wind wheel under the action of wind to a generator and make the generator obtain corresponding rotating speed.

[0003] The existing gear box impact resistance test needs to be subjected to hydraulic impact treatment, and a plurality of hydraulic rods are usually used to impact the gear box, and other structures are lacked, and the positions of deformation generated on the gear box are different in the impact process, so it is difficult to indicate a plurality of positions of deformation generated on the gear box in impact, and the function provided by the prior art is relatively single, therefore, a gear box impact resistance test equipment needs to be provided. SUMMARY

[0004] In view of the above problems, the gear box impact resistance test equipment is provided to overcome the defects of the prior art, and effectively solves the problems that the existing gear box impact resistance test scheme is difficult to indicate a plurality of positions of deformation generated on the gear box in impact and the function is relatively single.

[0005] The technical scheme adopted by the application is as follows: the gear box impact resistance test equipment comprises an in-probe test mechanism, a stamping driving structure, a box container, a test table top, a moving-through slot and a top support frame, the test table top is arranged on the ground, the moving-through slot is arranged through the test table top, the top support frame is fixedly connected to the test table top, the box container is arranged on the ground, the in-probe test mechanism is arranged in the box container, and the stamping driving structure is arranged on the test table top and can stamp the gear box to be tested.

[0006] As preferred, the probe testing mechanism comprises a contact probe, a limiting sheet, a sliding trigger lever, a U-shaped guide frame, an auxiliary spring, an end limiting layer, an end moving opening, a flow guide tube, a touch switch, an adaptive small spring, a moving display plate, a switch setting slot, a magnetic block, a small iron sheet, a moving taking-out slot, a pressing shrinkable capsule and a drainage tube. The pressing shrinkable capsule is arranged at the bottom of the box container, water is arranged in the pressing shrinkable capsule, the drainage tube is arranged in the side wall of the box container, the end moving opening is arranged on the side wall of the box container, the end limiting layer is embedded on the end moving opening, the flow guide tube penetrates through the side wall of the box container and is connected to the side edge of the end limiting layer, the U-shaped guide frame is arranged in the side wall of the box container, the sliding trigger lever penetrates through and is arranged on the U-shaped guide frame, the limiting sheet is fixedly connected to one end of the sliding trigger lever, the contact probe is arranged on one end of the limiting sheet close to the end limiting layer, the auxiliary spring is arranged in expansion and contraction between the U-shaped guide frame and the limiting sheet, the moving taking-out slot is arranged on the outer wall of the box container, the moving display plate is slidably embedded in the moving taking-out slot, the magnetic block is embedded on the upper and lower ends of the moving display plate, the small iron sheet is arranged on the upper and lower ends in the moving taking-out slot, the switch setting slot is arranged on the moving display plate, the adaptive small spring is arranged in the switch setting slot, the touch switch is arranged on the adaptive small spring, small indicator lights are embedded on the outer side of the moving display plate, the small indicator lights and the touch switch are electrically connected in two groups from top to bottom, and the on and off states of the small indicator lights on the four groups of moving display plates can reflect the deformation state of the gear box in the box container caused by impact, more small indicator lights being on indicates that more parts of the gear box are deformed, and less small indicator lights being on indicates that less parts of the gear box are deformed, so that the specific position of the deformation of the gear box after impact processing can be quickly evaluated.

[0007] Further, the stamping driving structure comprises a top hydraulic cylinder, an impact disc, a feeding table, a dust absorption roller, an impact cylinder body, a side positioning plate, a bottom electric push rod and a bottom cylinder body. The machine body of the top hydraulic cylinder is arranged on the top support frame, the impact disc is fixedly connected to the output end of the top hydraulic cylinder, the side positioning plate is fixedly connected to the inner wall of the top support frame in two groups, the impact cylinder body is fixedly connected between the side positioning plates, the feeding table is arranged on one side of the top of the impact cylinder body, the dust absorption roller is arranged between the inner walls of the feeding table, the machine body of the bottom electric push rod is arranged on the test table, and the bottom cylinder body is arranged on the output end of the bottom electric push rod. The diameters of the bottom cylinder body, the box container, the impact cylinder body and the moving through slot correspond to each other, and the bottom cylinder body is a hollow cylindrical structure penetrating through from top to bottom.

[0008] Preferably, four groups of moving display plates are arranged around the four faces of the box container, and a handle is further arranged on the moving display plate.

[0009] The flow guide tube is provided with a flow guide opening, and the end limiting layer is connected in communication with the flow guide tube through the flow guide opening.

[0010] In order to facilitate water through the drainage pipe into the diversion tube, the diversion tube and the drainage pipe are communicated.

[0011] The touch switch is in contact with the sliding trigger rod.

[0012] Further, the contact probe head is hemispherical.

[0013] Further, the touch switch is a normally closed switch.

[0014] When the end limit layer melts, the small spring is not limited and is at the maximum elongation, the sliding trigger rod just drives the contact probe head into the end moving port, when the contact probe head continues to move to the inside of the box container through the sliding trigger rod and the auxiliary spring, it indicates that the part of the gear box corresponding to the contact probe head has not been fully extruded, at this time, the contact probe head can enter the deformed part of the gear box, at this time, the touch switch is no longer in contact with the sliding trigger rod, because the touch switch is normally closed, at this time, the touch switch is no longer in contact with the sliding trigger rod, the internal circuit is disconnected, and the corresponding small indicator light is on, while under normal circumstances, the corresponding small indicator light is off.

[0015] Further, the contact probe head, the limiting sheet, the sliding trigger rod, the auxiliary spring, the end limit layer, the end moving port, the diversion tube, the touch switch, the small spring and the switch installation groove are arranged in several groups on the two side walls of the box container.

[0016] The beneficial effects obtained by the above structure are as follows: the present scheme provides a gear box impact resistance test device, which effectively solves the problem that the existing gear box impact resistance test scheme cannot indicate multiple positions of the impact on different gear boxes, and the function is relatively single, and this method has the following advantages:

[0017] (1) In order to solve the problem that the existing gear box impact resistance test scheme cannot indicate multiple positions of the impact on different gear boxes, the present application provides a probe type test mechanism, which drives the impact disc to move downward through the output end of the top hydraulic cylinder, when the bottom cylinder drives the gear box to move through the slot above, the gear box moves downward and falls into the box container, and the gear box is taken out after the impact is completed;

[0018] (2) When the impacted gear box falls into the box container, the water in the pressing contraction bag is extruded, the water is pressed into the diversion tube through the drainage pipe, and the water is transported to the end limit layer of the water-soluble paper material through the diversion port of the diversion tube, the end limit layer after absorbing water is dissolved, no longer limiting the force of the auxiliary spring, so the auxiliary spring drives the contact probe head to move to the direction of the impacted gear box through the limiting sheet and the sliding trigger rod, and the automatic start of the implementation process is completed;

[0019] (3) The on and off states of the small indicator lights on the four groups of mobile display plates reflect the deformation conditions of the gear box caused by the impact of the box container, if more small indicator lights are on, it indicates that more parts of the gear box are deformed, if less small indicator lights are on, it indicates that less parts of the gear box are deformed, thereby quickly evaluating the specific position of the deformation of the gear box after impact processing;

[0020] (4) Through the cooperation of the end limiting layer and the pressing shrinkable bag, the automatic experience of the gear box detection after entering the box container is realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective view of the gear box impact resistance testing equipment provided by the present application Figure 1 ;

[0022] Figure 2 A perspective view of the gear box impact resistance testing equipment provided by the present application Figure 2

[0023] A front view of the gear box impact resistance testing equipment provided by the present application Figure 3

[0024] A partial enlarged view of part A of the gear box impact resistance testing equipment provided by the present application Figure 4

[0025] A partial enlarged view of part B of the gear box impact resistance testing equipment provided by the present application Figure 5

[0026] A partial enlarged view of part C of the gear box impact resistance testing equipment provided by the present application Figure 6

[0027] A partial view of the end limiting layer, the end moving port, the flow guide tube and the flow guide port provided by the present application Figure 7 Figure 5 A partial view of the end limiting layer, the end moving port, the flow guide tube and the flow guide port provided by the present application

[0028] Figure 8 Figure 5 A partial view of the end limiting layer, the end moving port, the flow guide tube and the flow guide port provided by the present application

[0029] Figure 9 A partial view of the end limiting layer, the end moving port, the flow guide tube and the flow guide port provided by the present application Figure 6

[0030] A partial view of the end limiting layer, the end moving port, the flow guide tube and the flow guide port provided by the present application Figure 10

[0031] ​​Wherein, 1, the test mechanism, 2, stamping drive structure, 3, box container, 4, test table, 5, move through the slot, 6, top support frame, 7, contact probe, 8, limit piece, 9, sliding trigger lever, 10, U-shaped guide frame, 11, auxiliary spring, 12, end limit layer, 13, end moving mouth, 14, flow guide tube, 15, touch switch, 16, adapt to small spring, 17, moving display board, 18, switch installation groove, 19, magnetic block, 20, small iron sheet, 21, moving take-out slot, 22, press shrinkable capsule, 23, drainage tube, 24, small indicator light, 25, top hydraulic cylinder, 26, impact disc, 27, feeding table, 28, dust absorption roller, 29, impact cylinder, 30, side positioning plate, 31, bottom electric push rod, 32, bottom cylinder, 33, handle, 34, flow guide mouth.

[0032] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are intended to serve as an exemplification of the application, and do not limit the application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] As shown in Figures 1-3 and Figure 5 The present application provides a gear box impact test equipment, which comprises a test mechanism 1, a stamping drive structure 2, a box container 3, a test table 4, a moving through slot 5 and a top support frame 6. The test table 4 is arranged on the ground, the moving through slot 5 is arranged through the test table 4, and the top support frame 6 is fixedly connected to the test table 4. The box container 3 is arranged on the ground, the test mechanism 1 is arranged in the box container 3, and the stamping drive structure 2 is arranged on the test table 4.

[0036] As shown in Figures 5-10As shown, the probe test mechanism 1 includes a contact probe head 7, a limiting sheet 8, a sliding trigger lever 9, a U-shaped guide frame 10, an auxiliary spring 11, an end limiting layer 12, an end moving port 13, a flow guide tube 14, a touch switch 15, an adaptive small spring 16, a moving display plate 17, a switch setting slot 18, a magnetic block 19, a small iron sheet 20, a moving taking-out slot 21, a pressing shrinking capsule 22, and a drainage tube 23. The pressing shrinking capsule 22 is arranged at the bottom of the box container 3, water is arranged in the pressing shrinking capsule 22, the drainage tube 23 is arranged in the side wall of the box container 3, the end moving port 13 is arranged on the side wall of the box container 3, the end limiting layer 12 is embedded on the end moving port 13, the flow guide tube 14 penetrates through the side wall of the box container 3 and is connected to the side edge of the end limiting layer 12, the U-shaped guide frame 10 is arranged in the side wall of the box container 3, the sliding trigger lever 9 penetrates through and is slidably arranged on the U-shaped guide frame 10, the limiting sheet 8 is fixedly connected to one end of the sliding trigger lever 9, the contact probe head 7 is arranged on one end of the limiting sheet 8 close to the end limiting layer 12, the auxiliary spring 11 is arranged in a telescopic manner between the U-shaped guide frame 10 and the limiting sheet 8, the moving taking-out slot 21 is arranged on the outer wall of the box container 3, the moving display plate 17 is slidably embedded in the moving taking-out slot 21, the magnetic block 19 is embedded at the upper and lower ends of the moving display plate 17, the small iron sheet 20 is arranged at the upper and lower ends in the moving taking-out slot 21, the switch setting slot 18 is arranged on the moving display plate 17, the adaptive small spring 16 is arranged in the switch setting slot 18, the touch switch 15 is arranged on the adaptive small spring 16, a small indicator light 24 is embedded on the outer side of the moving display plate 17, and the small indicator light 24 and the touch switch 15 are electrically connected in two groups from top to bottom.

[0037] As shown, Figures 1-4 The stamping driving structure 2 includes a top hydraulic cylinder 25, an impact disc 26, an inlet table 27, a dust absorption roller 28, an impact cylinder body 29, a side positioning plate 30, a bottom electric push rod 31, and a bottom cylinder body 32. The body of the top hydraulic cylinder 25 is arranged on the top support frame 6, the impact disc 26 is fixedly connected to the output end of the top hydraulic cylinder 25, the side positioning plate 30 is fixedly connected to the inner wall of the top support frame 6 in two groups, the impact cylinder body 29 is fixedly connected between the side positioning plates 30, the inlet table 27 is arranged on one side of the top of the impact cylinder body 29, the dust absorption roller 28 is arranged between the inner walls of the inlet table 27 and can absorb the flying dust generated in the process of extruding the gear box, the body of the bottom electric push rod 31 is arranged on the test table top 4, and the bottom cylinder body 32 is arranged on the output end of the bottom electric push rod 31. The diameters of the bottom cylinder body 32, the box container 3, the impact cylinder body 29, and the moving through slot 5 correspond to each other. The bottom cylinder body 32 is a hollow cylindrical structure penetrating from top to bottom. The hollow cylindrical structure of the bottom cylinder body 32 neither affects the impact process nor enables the bottom electric push rod 31 to move, so that the gear box can smoothly enter the box container 3.

[0038] As shown, Figure 3 , Figure 5and Figure 7 As shown in the figure, the mobile display plate 17 is provided with four groups around the four sides of the box container 3, and the mobile display plate 17 is also provided with a handle 33.

[0039] As shown in the figure, Figure 7 , Figure 9 and Figure 10 As shown in the figure, the flow guide tube 14 is provided with a flow guide port 34, and the end limiting layer 12 is connected with the flow guide tube 14 through the flow guide port 34. The end limiting layer 12 is made of water-soluble paper material.

[0040] As shown in the figure, Figure 5 and Figure 6 As shown in the figure, the flow guide tube 14 is connected with the drainage tube 23.

[0041] As shown in the figure, Figure 7 The touch switch 15 is in contact with the sliding trigger rod 9, the contact probe head 7 is provided in a hemispherical shape, and the touch switch 15 is set as normally closed. When the end limiting layer 12 is dissolved, the adaptive small spring 16 is not limited and is in the maximum elongation, the sliding trigger rod 9 just drives the contact probe head 7 to enter the end moving port 13.

[0042] As shown in the figure, Figure 3 , Figure 7 and Figure 10 As shown in the figure, the contact probe head 7, the limiting sheet 8, the sliding trigger rod 9, the auxiliary spring 11, the end limiting layer 12, the end moving port 13, the flow guide tube 14, the touch switch 15, the adaptive small spring 16 and the switch setting groove 18 are arranged in several groups on the two side walls of the box container 3.

[0043] Specific use, the gear box to be measured by the input table 27 into the impact cylinder 29, the gear box to the bottom cylinder 32, control the top hydraulic cylinder 25, the output end of the top hydraulic cylinder 25 drive impact plate 26 down, the impact of the gear box, impact plate 26 eventually moved to the upper edge of the bottom cylinder 32 parallel position to stop moving, at this time the impact, control the bottom electric push rod 31, the output end of the bottom electric push rod 31 drive the bottom cylinder 32 to move outward, so as to drive the bottom cylinder 32 in the impact of the gear box together to move, when the bottom cylinder 32 drive gear box to move through the slot 5 above, the gear box down, and fall into the box container 3, after the impact of the gear box is removed; the impact of the gear box into the box container 3, will extrude the water in the pressurized capsule 22, water through the drainage pipe 23 into the guide tube 14, and through the guide port 34 on the guide tube 14 water to the end of the water soluble paper material limit layer 12, after absorbing water, the end of the limit layer 12 is dissolved, no longer limit the force of the auxiliary spring 11, so the auxiliary spring 11 through the limit piece 8 and the sliding trigger lever 9 drive the contact probe head 7 to the direction of the impact of the gear box, the automatic start of the implementation process is completed; when the end of the limit layer 12 is dissolved, the small spring 16 is not limited and in the maximum elongation, the sliding trigger lever 9 just drive the contact probe head 7 into the end of the moving mouth 13, when the contact probe head 7 through the sliding trigger lever 9 and the auxiliary spring 11 continue to move to the inside of the box container 3, it indicates that the position of the gear box corresponding to the contact probe head 7 exists deformation, at this time the group of contact probe head 7 can enter the deformation part of the gear box, at this time the touch switch 15 and the sliding trigger lever 9 no longer contact, because the touch switch 15 is set to normally closed, so at this time the touch switch 15 and the sliding trigger lever 9 no longer contact, the internal circuit is disconnected, the corresponding small indicator light 24 is on, while the corresponding small indicator light 24 is off under normal circumstances, the moving display plate 17 is usually temporarily positioned by the adsorption effect between the magnetic block 19 and the small iron sheet 20, the four groups of moving display plate 17 are pulled out by the handle 33, the on-off status of the small indicator light 24 on the four groups of moving display plate 17 reflects the deformation status of the gear box in the box container 3 after impact, if the small indicator light 24 is on more, it indicates that the deformation part of the gear box is more, if the small indicator light 24 is on less, it indicates that the deformation part of the gear box is less, so as to quickly evaluate the deformation status of the gear box after impact processing.

[0044] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other presenters can develop. It is also possible, however, that only a single element can be present. Terms such as "a", "an", and "the" are not intended to refer to only a singular entity but include the general class of which a single element is only one species, unless otherwise indicated. Furthermore, the use of the terms "primary" and "secondary", "first" and "second", etc., designate different Stages in the process, and are not intended to otherwise limit the number of stages which can be employed. The terminology includes the words specifically noted above, derivatives thereof, and words of similar import. The designation of a component as "optional" indicates that the component is "optional" and can or can not be present or used in the practice of the application, but that when it is present or used, it can be used in varying embodiments of the present application.

[0045] While the embodiments of the application have been shown and described, it is to be understood that various further modifications and changes can be made thereto without departing from the spirit and scope of the present application.

[0046] The above description of the application and its embodiments is not to be taken in a limiting sense. The sole purpose of the drawings included in the present specification is to provide a relative understanding of the inventive features and embodiments described herein before. The drawings are not intended to be to scale, nor are they to be construed as limiting the scope of the application.

Claims

1. A gearbox impact resistance testing device, comprising a test table (4) and a top support frame (6), characterized in that: The test table (4) is arranged on the ground, the top support frame (6) is fixedly connected to the test table (4), and further comprises a probe-type test mechanism (1), a punching drive structure (2), a box container (3) and a movable through slot (5), wherein the movable through slot (5) is arranged through the test table (4), the box container (3) is arranged on the ground, the probe-type test mechanism (1) is arranged in the box container (3), and the punching drive structure (2) is arranged on the test table (4); The probe-type testing mechanism (1) comprises a contact probe head (7), a limiting plate (8), a sliding trigger rod (9), a U-shaped guide frame (10), an auxiliary spring (11), an end limiting layer (12), an end moving port (13), a diversion tube (14), a touch switch (15), an adaptive small spring (16), a movable display panel (17), a switch placement slot (18), a magnetic block (19), a small iron sheet (20), a movable removal slot (21), a pressing and contracting capsule (22) and a drainage tube (23), wherein the pressing and contracting The bag (22) is arranged at the bottom of the box container (3), water is arranged in the pressing and shrinking bag (22), the drainage tube (23) is arranged in the side wall of the box container (3), the end moving port (13) is arranged on the side wall of the box container (3), the end limiting layer (12) is embedded in the end moving port (13), the diversion tube (14) passes through the side wall of the box container (3) and is connected to the side of the end limiting layer (12), the U-shaped guide frame (10) is arranged in the side wall of the box container (3), the sliding The trigger rod (9) is slidably mounted on the U-shaped guide frame (10), the limiting plate (8) is fixed to one end of the sliding trigger rod (9), the contact probe (7) is arranged on one end of the limiting plate (8) close to the end limiting layer (12), the auxiliary spring (11) is telescopically arranged between the U-shaped guide frame (10) and the limiting plate (8), the movable extraction groove (21) is arranged on the outer wall of the box container (3), the movable display panel (17) is slidably mounted in the movable extraction groove (21), and the magnetic block (19) is embedded in the movable extraction groove (21). The small iron sheet (20) is placed at the upper and lower ends of the movable display panel (17), the small iron sheet (20) is arranged at the upper and lower ends of the movable extraction groove (21), the switch placement groove (18) is arranged on the movable display panel (17), the adaptive small spring (16) is arranged in the switch placement groove (18), the touch switch (15) is arranged on the adaptive small spring (16), and a small indicator light (24) is embedded on the outer side of the movable display panel (17), and the small indicator light (24) and the touch switch (15) are electrically connected one by one from top to bottom in a group of two; The end limiting layer (12) is made of water-soluble paper material.

2. The gearbox impact resistance testing device according to claim 1, characterized in that: The punching drive structure (2) includes a top hydraulic cylinder (25), an impact disc (26), a feeding table (27), a dust collecting roller (28), an impact cylinder (29), a side positioning plate (30), a bottom electric push rod (31) and a bottom cylinder (32), wherein the body of the top hydraulic cylinder (25) is arranged on the top support frame (6), the impact disc (26) is fixedly connected to the output end of the top hydraulic cylinder (25), the side positioning plates (30) are fixedly connected to the inner wall of the top support frame (6) in two groups, and the impact cylinder (29) is fixedly connected to the inner wall of the top support frame (6). Between the side positioning plates (30), the feeding platform (27) is arranged on one side of the top of the impact cylinder (29), the dust collection roller (28) is arranged between the inner walls of the feeding platform (27), the body of the bottom electric push rod (31) is arranged on the test table (4), and the bottom cylinder (32) is arranged on the output end of the bottom electric push rod (31). The diameters of the bottom cylinder (32), the box container (3), the impact cylinder (29), and the moving groove (5) correspond to each other, and the bottom cylinder (32) is a hollow cylindrical structure that passes through from top to bottom.

3. The gearbox impact resistance testing device according to claim 2, characterized in that: The movable display panels (17) are provided in four groups around the four sides of the box container (3), and the movable display panels (17) are also provided with a handle (33).

4. The gearbox impact resistance testing device according to claim 3, characterized in that: The guide tube (14) is provided with a guide port (34), and the end limiting layer (12) is connected to the guide tube (14) through the guide port (34).

5. The gearbox impact resistance testing device according to claim 4, characterized in that: The diversion tube (14) and the drainage tube (23) are connected.

6. The gearbox impact resistance testing device according to claim 5, characterized in that: The touch switch (15) is in contact with the sliding trigger rod (9).

7. The gearbox impact resistance testing device according to claim 6, characterized in that: The contact probe (7) is configured to be hemispherical.

8. The gearbox impact resistance testing device according to claim 7, characterized in that: The touch switch (15) is set to be normally closed, and the contact probe (7), the limit plate (8), the sliding trigger rod (9), the auxiliary spring (11), the end limit layer (12), the end movement port (13), the guide tube (14), the touch switch (15), the adaptive small spring (16) and the switch placement groove (18) are arranged in a plurality of groups on the two side walls of the box container (3).

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