CN115902501A

CN115902501A - Test equipment that block terminal was used

Info

Publication number: CN115902501A
Application number: CN202310171640.8A
Authority: CN
Inventors: 张伟; 陈枫航; 李思晴; 褚衍良
Original assignee: Shandong Zhongxing Technology Development Co ltd
Current assignee: Shandong Zhongxing Technology Development Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-04-04
Anticipated expiration: 2043-02-28
Also published as: CN115902501B

Abstract

The invention relates to the technical field of testing equipment, and provides testing equipment for a distribution box, wherein the rising, the use and the falling of a host are realized by adopting a mechanical structure, the dependence on electric power components is small, the structure is reasonable, the use and the operation are convenient, and the following with operators can be realized in the using process, so that the testing equipment is practical.

Description

Test equipment that block terminal was used

Technical Field

The invention relates to the technical field of testing equipment, in particular to testing equipment for a distribution box.

Background

As is well known, the block terminal mainly uses as the installation and the protection of electrical component in the use, and for guaranteeing the power consumption safety, the block terminal all need carry out the test of electrical variable when dispatching from the factory or using to guarantee that the block terminal accords with the service standard and the safe handling that design, detect the block terminal for the convenience, provide a test equipment that the block terminal was used.

Through search, chinese patent publication No. CN112684276A, published at 20.4.2021, discloses a continuous power distribution cabinet electrical variable measuring device, which is roughly described as comprising a main box, a base is arranged inside the main box, a host is fixedly installed at the top end of the base, a main board is fixedly installed inside the host, a buffer board is arranged at the top end of the main box, a buffer rod is fixedly installed at the bottom end of the buffer board, a first spring is sleeved on the outer surface of the buffer rod, the bottom end of the first spring is fixedly connected with the host, a bolt is inserted into the outer surface of the front end of the main box, a limit groove is respectively arranged on the buffer board and the outer surface of the front end of the base, a magnetic block is fixedly installed on the inner wall of the limit groove, a motor is fixedly installed at the four corners of the inner fixed bottom end of the main box, a screw rod is fixedly installed at the output end of the motor, one end of the screw rod penetrates through the base, the screw rod is in threaded connection with the base, when the continuous power distribution cabinet is used, firstly, the bolt is pulled outwards to drive the clamping plate to return to the side groove, then the bolt is rotated to stagger the groove on the clamping plate with the stop dog to block the clamping plate, the limit to the host machine is relieved, the motor in the main box is started, the screw rod is driven to rotate through the motor to drive the base to push out the host machine outwards for use, when the host machine is completely pushed out, the limiting groove on the base corresponds to the clamping plate, the bolt is rotated at the moment to enable the groove on the clamping plate to correspond to the stop dog, the clamping plate can be attracted by the magnetic force of the magnetic block in the limiting groove and inserted into the limiting groove to fix the host machine, the periphery of the host machine is provided with an operation panel, when in operation, a plurality of power distribution cabinets can be simultaneously connected and detected by a plurality of power distribution cabinets, the work efficiency of detection equipment is greatly increased, the top end of the host machine is provided with a buffer plate, when being impacted, the first spring on the surface of the inner side buffer rod can be extruded to buffer the impact force, the loss to the host computer is reduced, the security of host computer has been increased, after detecting and finishing, withdraws the main tank with the host computer in through the motor.

Although foretell prior art scheme can improve and accomodate the protection of host computer, the release of host computer is used and falls into to accomodate all to realize through a plurality of motor synchronous working, too much reliance motor in the in-service use process, in case the motor breaks down, very easily causes the host computer can't rise the use, need provide the electric energy for the motor simultaneously, the setting of a plurality of motors also can cause the increase of energy consumption.

Disclosure of Invention

The technical problem to be solved is as follows: aiming at the defects of the prior art, the invention provides the test equipment for the distribution box, the lifting, using and falling of the host machine are realized by adopting a mechanical structure, the dependence on electric power parts is less, the structure is more reasonable, the use and the operation are more convenient, the follow-up along with operators can be realized in the use process, and the test equipment is more practical.

The technical scheme is as follows: in order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a test equipment that block terminal was used, includes test equipment's host computer, still includes the removal box, the host computer sets up remove the box in, it is connected with to uncapping, two to rotate on removing the box cover all to rotate and be connected with preceding gangbar and back gangbar, the front end of host computer and the equal fixedly connected with traction frame in rear end, two preceding gangbar respectively with two the traction frame rotates to be connected, two back gangbar also rotates with two traction frames respectively to be connected, two are provided with the synchronization structure between uncapping, two cover to opening and have all seted up supplementary operation mouth, two in the supplementary operation mouth through a plurality of spring coupling have adjustable board, all install the handle bar spacing on two adjustable boards, two cover to opening all be provided with the spacing track groove that matches with the handle bar spacing, remove on the interior diapire of box a plurality of angle framves of fixedly connected with, it is a plurality of angle framves cooperation formation wire winding structure, connect the spring before two bottom fixedly connected with of removal box and two back connect the spring and two preceding adjusting spring and all be connected with the front adjusting spring and two rear adjusting ball axle connecting rod are connected with the ball axle, the front adjusting shaft is connected with the ball connecting sleeve, the box is connected with the adjusting rod, the rear adjusting shaft is connected with the ball connecting rod is connected with the ball case, the rear adjusting shaft is connected with the box, the rear adjusting rod is connected with the adjusting the box, the adjusting rod is connected with the rear adjusting the box is connected with the adjusting rod is connected with the ball case.

On the basis of the scheme, the dragging system comprises an installation cylinder, the installation cylinder is fixedly connected to the installation rod, the traction rod is connected to the interior of the installation cylinder in a sliding mode, the traction rod is connected with an installation disc through a thin column, the installation disc and the thin column are arranged in the installation cylinder, one end of the installation disc, far away from the thin column, of the telescopic spring is fixedly connected with a telescopic spring, one end of the telescopic spring, far away from the installation disc, is connected with the installation rod, the thin column is sleeved with an installation ring, the installation ring is fixedly connected to the interior of the installation cylinder, and the left end and the right end of the installation ring are respectively provided with a first piezoresistive switch and a second piezoresistive switch, the first piezoresistive switch is used for forward control of the power traveling wheel, and the second piezoresistive switch is used for backward control of the power traveling wheel.

Preferably on the basis of the scheme, the two hand lever limiting frames comprise fixing columns and double-elbow adjusting frames, the two fixing columns are fixedly connected in the two adjustable plates respectively, connecting discs are fixedly connected to the top ends of the two fixing columns respectively, inclined connecting cavities are formed in the two double-elbow adjusting frames respectively, the two connecting discs are arranged in the two inclined connecting cavities respectively, and the two limiting track grooves are matched with the two double-elbow adjusting frames respectively.

Further on the basis of the scheme, the synchronous structure comprises a linkage gear and two linkage racks, the two linkage racks are meshed with the linkage gear, the movable box is internally and fixedly connected with a guide sleeve, the two linkage racks are connected in the guide sleeve in a sliding mode, the linkage gear is connected in the guide sleeve in a rotating mode, the two linkage racks are meshed with driving gears, and the two driving gears are connected with the two oppositely-opened covers respectively.

On the basis of the above scheme, the power traveling wheel further comprises a traveling wheel frame, the traveling wheel frame is connected with the rear shaft, a driving wheel is installed in the traveling wheel frame, a bidirectional motor for driving the driving wheel is installed on the traveling wheel frame, and the first piezoresistive switch and the second piezoresistive switch are respectively used for controlling the forward rotation and the reverse rotation of the bidirectional motor.

On the basis of the scheme, furthermore, an open slot is formed in the traction rod, and a folding extension rod is rotatably connected in the open slot through a connecting shaft.

As a further aspect of the above solution, a support limit sleeve is connected in the auxiliary box, and an open slot matched with the folding extension rod is formed in the support limit sleeve.

As a further improvement of the above scheme, the auxiliary box is provided with a vertical door slot, the vertical door slot is connected with a pull-plug door in a sliding manner, and the pull-plug door is provided with a hand slot.

As a further improvement of the above scheme, the ball sleeve is provided with a notch groove, and the notch groove is matched with the mounting rod.

As a further scheme of the above scheme, the bottom end of the movable box body is fixedly connected with a plurality of front guide rods and a plurality of rear guide rods, a plurality of front guide grooves are formed in the top ends of the front adjusting frames, the front guide rods are respectively connected in the front guide grooves in a sliding mode, a plurality of rear guide grooves are formed in the top ends of the rear adjusting frames, and the rear guide rods are respectively connected in the rear guide grooves in a sliding mode.

Has the advantages that: compared with the prior art, the invention provides a test device for a distribution box, which has the following beneficial effects:

1. according to the invention, an integral structure for installing and protecting the host is formed by matching the movable box body with the two oppositely-opened covers, linkage between the host and the two oppositely-opened covers is formed by matching the front linkage rod, the rear linkage rod and the traction frame, so that the host can be lifted in a matching way after the covers are opened, the host can be fallen back into the movable box body in a matching way after the oppositely-opened covers are closed, the lifting, the use and the falling of the host are realized by adopting a mechanical structure, and the dependence on electric power components is less.

2. According to the invention, through the design of a synchronous structure, two synchronous opening or closing of the cover opening are conveniently realized, the lifting of the main machine is more coordinated, the structure is more reasonable, the use and the operation are more convenient, through the establishment of the auxiliary operation port, enough space can be provided for the lifting use of the main machine, through the cooperation of the adjustable plate and the spring, the auxiliary operation port can be sealed, so that the protection of the main machine after the main machine falls into the movable box body is ensured, through the design of the hand lever limiting frame, the limitation of the state of the opened auxiliary operation port by the sliding of the adjustable plate is facilitated, the adjustment is more convenient, and the operation is simpler.

3. According to the invention, the movable box body is convenient to move through the matching of the steering wheel and the power travelling wheel, and the corresponding travelling command can be applied to the power travelling wheel through the arrangement of the dragging system, so that the movable box body can follow along with an operator, and the movable box body is practical.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a perspective view of the present invention, viewed from the rear, in elevation;

FIG. 4 is a perspective view of the present invention in a rear elevational view in full, partially cut away;

FIG. 5 is an enlarged view of a portion of FIG. 4 at B according to the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 4 at C;

FIG. 7 is a schematic perspective view of the movable box, corner bracket and guide sleeve of the present invention;

FIG. 8 is a schematic view of the three-dimensional structure of the present invention with the front and rear linkage rods and the traction frame engaged;

FIG. 9 is a schematic perspective view of the movable housing, the front connecting spring, the rear connecting spring, etc. of the present invention;

FIG. 10 is an enlarged partial schematic view of FIG. 9 at D in accordance with the present invention;

FIG. 11 is an enlarged partial schematic view of FIG. 9 at E in accordance with the present invention;

FIG. 12 is a schematic perspective view of the front connecting spring, the rear connecting spring, and the front adjusting bracket of the present invention;

FIG. 13 is a schematic perspective view of the steering wheel and the traveling wheel frame of the present invention folded with respect to the front connecting spring and the rear connecting spring, respectively;

FIG. 14 is a schematic perspective view of the matching of the fixing column, the double-elbow adjusting bracket and the connecting disc of the present invention;

FIG. 15 is a schematic sectional perspective view of a double-elbow adjusting bracket according to the present invention;

FIG. 16 is a schematic exploded perspective view of the mounting rod, drawbar and mounting barrel, etc. in accordance with the present invention;

FIG. 17 is a schematic view of a partially cut-away perspective view of the drawbar, mounting barrel and pin according to the present invention;

fig. 18 is a perspective view of the spring and adjustable plate of the present invention.

In the figure: 1. a host; 2. moving the box body; 3. opening the cover; 4. a front linkage rod; 5. a rear linkage rod; 6. a traction frame; 7. a spring; 8. an adjustable plate; 9. a limiting track groove; 10. a corner bracket; 11. a front connecting spring; 12. a rear connecting spring; 13. a front adjusting bracket; 14. a steering wheel; 15. a rear adjusting bracket; 16. an auxiliary box; 17. a ball sleeve; 18. a connecting ball; 19. mounting a rod; 20. a draw bar; 21. mounting the cylinder; 22. a thin column; 23. installing a disc; 24. a retractable spring; 25. a mounting ring; 26. fixing the column; 27. a double-elbow adjusting frame; 28. connecting the disc; 29. a bias connection cavity; 30. a linkage gear; 31. a linkage rack; 32. a guide sleeve; 33. a drive gear; 34. a traveling wheel carrier; 35. a drive wheel; 36. a bi-directional motor; 37. a connecting shaft; 38. folding the extension rod; 39. supporting a limit sleeve; 40. an open slot; 41. a drawing and inserting door; 42. a hand groove; 43. a notch groove; 44. a front guide rod; 45. a rear guide rod.

Detailed Description

In the embodiment, referring to the attached drawings 1-18, the testing device for the distribution box comprises a main machine 1 of the testing device and a movable box body 2, wherein the main machine 1 is arranged in the movable box body 2, a pair of covers 3 are rotatably connected to the movable box body 2, an integral structure for installing and protecting the main machine 1 is formed by matching the movable box body 2 with the two pair of covers 3, a front linkage rod 4 and a rear linkage rod 5 are rotatably connected to the two pair of covers 3, traction frames 6 are fixedly connected to the front end and the rear end of the main machine 1, the two front linkage rods 4 are respectively rotatably connected with the two traction frames 6, the two rear linkage rods 5 are respectively rotatably connected with the two traction frames 6, linkage between the main machine 1 and the two pair of covers 3 is formed by matching the front linkage rods 4, the rear linkage rods 5 and the traction frames 6, so that the main machine 1 can be matched and lifted after the covers 3 are opened, host computer 1 can cooperate to fall back in the removal box 2 after 3 closures uncaps, the rise of host computer 1 is used and falls into to accomodate and adopt mechanical structure to realize, it is less to the electric power part dependence, two are provided with the synchronization structure between 3 to uncaps, the synchronization structure includes linkage gear 30 and two linkage racks 31, two linkage racks 31 all mesh with linkage gear 30, fixedly connected with guide pin bushing 32 in the removal box 2, two equal sliding connection of linkage rack 31 are in guide pin bushing 32, linkage gear 30 rotates to be connected in guide pin bushing 32, two linkage racks 31 all mesh there is drive gear 33, two drive gear 33 are connected 3 to uncapping with two respectively, design through synchronization structure, conveniently realize two synchronous opening or closure to uncapping 3, the rise of host computer 1 is more harmonious, the structure is comparatively reasonable, it is comparatively convenient to use the operation.

It should be further explained that two opposite covers 3 are both provided with auxiliary operation ports, through the opening of the auxiliary operation ports, enough space can be provided for the lifting use of the main machine 1, the two auxiliary operation ports are connected with adjustable plates 8 through a plurality of springs 7, through the matching of the adjustable plates 8 and the springs 7, the auxiliary operation ports can be sealed, thereby ensuring the protection of the main machine 1 after falling into the movable box body 2, the two adjustable plates 8 are both provided with hand lever limiting frames, the two opposite covers 3 are both provided with limiting track grooves 9 matched with the hand lever limiting frames, the two hand lever limiting frames both comprise fixed columns 26 and double-elbow adjusting frames 27, the two fixed columns 26 are respectively and fixedly connected in the two adjustable plates 8, the top ends of the two fixed columns 26 are both fixedly connected with connecting discs 28, and the two double-elbow adjusting frames 27 are both provided with eccentric connecting cavities 29, two connection pads 28 set up respectively in two inclined to one side connection chamber 29, two spacing track grooves 9 match with two double bend alignment brackets 27 respectively, design through the gag lever post, make things convenient for the slip of adjustable plate 8 to inject the state after opening the auxiliary operation mouth, it is comparatively convenient to adjust, the operation is comparatively simple, a plurality of corner frame 10 of fixedly connected with on the interior diapire of removal box 2, a plurality of corner frame 10 cooperate and form winding structure, connect spring 11 and two back connection spring 12 before two bottom fixedly connected with of removal box 2, connect spring 11 before two and all be connected with preceding alignment bracket 13, two preceding alignment bracket 13 all rotate and are connected with the front axle, two equal fixedly connected with directive wheel 14 of front axle, connect spring 12 after two and all be connected with back alignment bracket 15, all rotate on two back alignment bracket 15 and be connected with the rear axle.

It should be further described that the two rear shafts are both fixedly connected with a power advancing wheel, the power advancing wheel includes an advancing wheel frame 34, the advancing wheel frame 34 is connected with the rear shaft, a driving wheel 35 is installed in the advancing wheel frame 34, a bidirectional motor 36 for driving the driving wheel 35 is installed on the advancing wheel frame 34, a first piezoresistive switch and a second piezoresistive switch are respectively used for forward rotation and reverse rotation control of the bidirectional motor 36, through cooperation of the steering wheel 14 and the power advancing wheel, movement of the mobile box body 2 is facilitated, the front end of the mobile box body 2 is provided with the auxiliary box 16, the auxiliary box 16 is rotatably connected with the ball sleeve 17 in the auxiliary box 16, the connecting ball 18 is arranged in the ball sleeve 17, the mounting rod 19 is fixedly connected on the connecting ball 18, a notch 43 is arranged on the ball sleeve 17, the notch 43 is matched with the mounting rod 19, the mounting rod 19 is connected with the drag rod 20 through a drag system, an open slot 40 is arranged on the drag rod 20, the open slot 40 is rotatably connected with the folding extension rod 38 through the open slot 37 in the open slot 40, the auxiliary box 16 is connected with a support limit sleeve 39, a support limit sleeve 39 is arranged in the support limit sleeve 39, a support limit slot 40 arranged on the auxiliary door is arranged in the support limit slot, stability of the auxiliary door is ensured, and a vertical door 16 is arranged on the auxiliary door is arranged on the vertical door.

It should be further noted that, the dragging system includes an installation cylinder 21, the installation cylinder 21 is fixedly connected to the installation rod 19, the traction rod 20 is slidably connected in the installation cylinder 21, and the traction rod 20 is connected to an installation disc 23 through a thin column 22, the installation disc 23 and the thin column 22 are both disposed in the installation cylinder 21, and one end of the installation disc 23 far away from the thin column 22 is fixedly connected with a telescopic spring 24, one end of the telescopic spring 24 far away from the installation disc 23 is connected to the installation rod 19, a mounting ring 25 is sleeved on the thin column 22, the mounting ring 25 is fixedly connected in the installation cylinder 21, and a first piezoresistive switch and a second piezoresistive switch are respectively installed at the left end and the right end of the mounting ring 25, the first piezoresistive switch is used for forward control of the power traveling wheel, the second piezoresistive switch is used for backward control of the power traveling wheel, through the arrangement of the dragging system, a corresponding traveling command can be applied to the power traveling wheel, so that the mobile box 2 can be moved along with an operator, it is practical, the mobile box 2 can be moved along with the operator, the mobile box 2 is provided with a plurality of front guide rods 44 and a plurality of rear guide rods, the mobile box 13, the mobile box is provided with a plurality of front guide frame, the mobile box 15, the mobile box 13, the mobile box is provided with a plurality of front guide frame, and a plurality of front and a plurality of rear adjusting rack, the mobile box 15, and a plurality of rear adjusting rack, the mobile box 15, and a plurality of rear adjusting rack.

The bidirectional motor 36, the first piezoresistive switch and the second piezoresistive switch in this embodiment are conventional devices that are purchased from the market and are well known to those skilled in the art, and can also be customized according to actual needs, in this patent, we only use them, and do not improve their structures and functions, and their setting mode, installation mode and electrical connection mode are used.

To sum up, the working process of the testing device for the distribution box is that, when in use, the main power supply of the testing device for the distribution box is firstly turned on, the two-way motor 36, the first piezoresistive switch and the second piezoresistive switch are all powered on for standby operation, a PLC control unit is matched among the two-way motor 36, the first piezoresistive switch and the second piezoresistive switch, conversion of corresponding control signals is realized, then an operator turns on the inserting and pulling door 41 to pull out the folding extension rod 38 from the auxiliary box 16, the folding extension rod 38 assists in pulling the movable box body 2 to move, when the folding extension rod 38 pulls the thin column 22 and the mounting disc 23 to synchronously move through the draw bar 20, the spring extension 24 is stretched and deformed under tension, at this time, as the mounting disc 23 is relatively close to the mounting ring 25 and forms a certain pressure on the first piezoresistive switch, the first piezoresistive switch forms a passage, so that the two-way motor 36 is positively transmitted in this state, the driving wheel 35 is driven to rotate, so that the moving box body 2 moves forwards, at the same time, after the moving speed of an operator is reduced or stopped, the moving box body 2 can continuously move forwards relative to the operator, the tensile deformation of the telescopic spring 24 is firstly recovered, the power supply of the bidirectional motor 36 is cut off, the moving power of the moving box body 2 disappears in the state, after the telescopic spring 24 is compressed, the draw bar 20 can be close to the mounting ring 25 and form a certain pressure on the second piezoresistive switch, the bidirectional motor 36 rotates reversely in the state, the driving wheel 35 is driven to rotate reversely, the moving box body 2 retreats, so that the follow-up relative to the operator is realized, after the moving box body is moved to a proper position, the two pairs of opening covers 3 are rotated to open, the two pairs of opening covers 3 respectively drive the two front linkage rods 4 to move, and the two pairs of opening covers 3 respectively drive the two rear linkage rods 5 to move, thereby realize the rising of host computer 1, it can to the detection of block terminal to realize after host computer 1 rises, can also push down adjustable plate 8 in the testing process simultaneously, and through rotating double elbow adjusting bracket 27, make double elbow adjusting bracket 27 slide and get into spacing track groove 9 in, can realize adjustable plate 8 for the location to uncapping 3, make the auxiliary operation mouth to uncapping 3 expose, thereby improve the mesh that host computer 1 facilitates the use, and for effectively avoiding falling object to pound the host computer 1 after the injure rises, also can set up above host computer 1 such as in the background art, the similar structure of the corresponding buffer board in the comparison patent that publication number is CN112684276A, in order to guarantee the stable adjustment that host computer 1 rises and falls simultaneously, can also set up the direction guide subassembly supporting with host computer 1 in moving box 2.

Claims

1. The utility model provides a test equipment that block terminal was used, includes test equipment's host computer (1), its characterized in that still includes and removes box (2), host computer (1) sets up remove in box (2), it is connected with to uncapping (3) to rotate on removing box (2), two it is connected with preceding gangbar (4) and back gangbar (5) to all rotate on uncapping (3), the equal fixedly connected with traction frame (6) of front end and rear end of host computer (1), two preceding gangbar (4) respectively with two traction frame (6) rotate and are connected, two back gangbar (5) also rotate with two traction frame (6) respectively and are connected, two are provided with synchronous structure between uncapping (3), two are all seted up supplementary operation mouth on uncapping (3), two be connected with adjustable board (8) through a plurality of springs (7) in the supplementary operation mouth, two are all installed the handle bar spacing frame on adjustable board (8), two are all installed the spacing frame (10) on spacing frame (3) to uncapping all being provided with the handle bar matching, two are connected with the spacing frame (9), remove box fixed connection of the diapire (2) in the fixed connection of box (10), two preceding angle spring (10) and the cooperation of two preceding angle springs (11) are connected with the two, two preceding angle spring (10) and are connected with the box (10) before the cooperation of two, the spacing frame (10), two preceding alignment jig (13) all rotates and is connected with the front axle, two the equal fixedly connected with directive wheel (14) of front axle, two back connecting spring (12) all is connected with back alignment jig (15), two all rotate on back alignment jig (15) and be connected with the rear axle, two the equal fixedly connected with power of rear axle advances the wheel, the front end of removal box (2) is installed and is assisted case (16), assistance case (16) internal rotation is connected with ball cover (17), be provided with in the ball cover (17) and connect ball (18), fixedly connected with installation pole (19) on connecting ball (18), installation pole (19) are connected with traction lever (20) through the system of dragging.

2. The testing equipment for the distribution box according to claim 1, wherein the dragging system comprises a mounting cylinder (21), the mounting cylinder (21) is fixedly connected to the mounting rod (19), the traction rod (20) is slidably connected to the inside of the mounting cylinder (21), the traction rod (20) is connected to a mounting disc (23) through a thin column (22), the mounting disc (23) and the thin column (22) are both arranged in the mounting cylinder (21), one end of the mounting disc (23) far away from the thin column (22) is fixedly connected with a telescopic spring (24), one end of the telescopic spring (24) far away from the mounting disc (23) is connected to the mounting rod (19), a mounting ring (25) is sleeved on the thin column (22), the mounting ring (25) is fixedly connected to the inside of the mounting cylinder (21), and a first piezoresistive switch and a second piezoresistive switch are respectively installed at the left end and the right end of the mounting ring (25), the first piezoresistive switch is used for forward control of the power traveling wheel, and the second switch is used for backward control of the power traveling wheel.

3. The testing equipment for the distribution box according to claim 2, wherein each of the two hand lever limiting frames comprises a fixed column (26) and a double-elbow adjusting frame (27), each of the two fixed columns (26) is fixedly connected in each of the two adjustable plates (8), each of the top ends of each of the two fixed columns (26) is fixedly connected with a connecting disc (28), each of the two double-elbow adjusting frames (27) is provided with a partial connecting cavity (29), each of the two connecting discs (28) is arranged in each of the two partial connecting cavities (29), and each of the two limiting track grooves (9) is matched with each of the two double-elbow adjusting frames (27).

4. The testing equipment for the distribution box according to claim 3, wherein the synchronizing structure comprises a linkage gear (30) and two linkage racks (31), the two linkage racks (31) are both meshed with the linkage gear (30), a guide sleeve (32) is fixedly connected in the movable box body (2), the two linkage racks (31) are both slidably connected in the guide sleeve (32), the linkage gear (30) is rotatably connected in the guide sleeve (32), the two linkage racks (31) are both meshed with a driving gear (33), and the two driving gears (33) are respectively connected with the two opposite covers (3).

5. The testing equipment for the distribution box according to claim 4, wherein the power traveling wheel comprises a traveling wheel frame (34), the traveling wheel frame (34) is connected with the rear shaft, a driving wheel (35) is installed in the traveling wheel frame (34), a bidirectional motor (36) for driving the driving wheel (35) is installed on the traveling wheel frame (34), and the first piezoresistive switch and the second piezoresistive switch are respectively used for controlling the forward rotation and the reverse rotation of the bidirectional motor (36).

6. The testing equipment for the distribution box according to claim 5, wherein an open slot (40) is formed in the draw bar (20), and a folding extension rod (38) is rotatably connected in the open slot (40) through a connecting shaft (37).

7. The testing equipment for the distribution box according to claim 6, wherein a supporting and limiting sleeve (39) is connected in the auxiliary box (16), and an open slot (40) matched with the folding extension rod (38) is formed in the supporting and limiting sleeve (39).

8. The testing equipment for the distribution box according to claim 7, wherein a vertical door slot is formed in the auxiliary box (16), a plugging door (41) is connected in the vertical door slot in a sliding manner, and a hand slot (42) is formed in the plugging door (41).

9. The testing apparatus for the distribution box according to claim 8, wherein the ball sleeve (17) is provided with a notch groove (43), and the notch groove (43) is matched with the mounting rod (19).

10. The testing equipment for the distribution box according to claim 9, wherein a plurality of front guide rods (44) and a plurality of rear guide rods (45) are fixedly connected to the bottom end of the movable box body (2), a plurality of front guide grooves are formed in the top ends of the two front adjusting frames (13), the front guide rods (44) are respectively slidably connected in the front guide grooves, a plurality of rear guide grooves are formed in the top ends of the two rear adjusting frames (15), and the rear guide rods (45) are respectively slidably connected in the rear guide grooves.