A distribution box insulation test device

Abstract

The present invention relates to the field of distribution box testing technology. Specifically, the present invention discloses a distribution box insulation testing device, including a transmission mechanism, the transmission mechanism includes a frame, a conveyor belt rotatably arranged on the side of the frame, a motor installed on the outside of the frame for driving the conveyor belt, and a positioning block installed on the outside of the conveyor belt for positioning the distribution box body; the positioning block is arranged in an "L" shape, four positioning blocks form a group, the four corners of the distribution box body are slidably inserted between a group of positioning blocks, and the positioning blocks are arranged in several groups, which is convenient for placing multiple distribution box bodies. The distribution box body moves to the test position, is connected to the ohmmeter body through the feeler, the contact piece is inserted between the spacer, and the spacer is connected to the ohmmeter body for testing by the contact piece abutting on the spacer, the rack moves downward so that the gear drives the shaft to rotate, the shaft drives the contact piece to move downward first and then rotate, so that the contact piece is separated from the spacer, and the test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of distribution box testing, and in particular to a distribution box insulation testing device. Background Art

[0002] The insulation test of the distribution box is a test device used to detect the withstand voltage capacity of the insulation material of electrical equipment. This test is designed to ensure that the electrical equipment in the distribution box can maintain electrical insulation under normal use conditions and can work safely without any electrical failure or electric shock risk.

[0003] In the insulation test, commonly used test devices include DC withstand voltage test and AC withstand voltage test. DC withstand voltage test: use a high-voltage DC power supply to apply the rated voltage to the insulating part of the distribution box, such as wires, cables, insulating sleeves, etc., and then measure the current passing through the insulating part. The measurement time is usually 1 minute or longer, and it is suitable for evaluating the insulation performance of insulating materials. If the current is lower than the predetermined safety threshold, the test can be considered qualified, otherwise it is considered unqualified and the insulating material may have defects; AC withstand voltage test: similar to the DC withstand voltage test, but a high-voltage AC power supply is used to apply the test voltage. AC withstand voltage The voltage withstand test usually applies the test voltage to the insulating parts relative to each other and to the ground, and evaluates the withstand voltage capacity of the insulating material by measuring the current. Like the DC withstand voltage test, the test time and safety threshold also need to be determined according to specific requirements and standards, and special test instruments and equipment are used for operation. In addition, using an ohmmeter to test the resistance of the insulating part is also a commonly used test device. The greater the resistance, the stronger the insulation. To ensure the accuracy and safety of the test, the use of this test device needs to follow the relevant safety operating procedures, and the power should be properly disconnected and any parts that may cause danger should be removed before the test.

[0004] At present, the existing testing devices usually use manual methods to clamp the two connecting clips of the ohmmeter on the outer shell of the distribution box and the partition inside it respectively, and judge whether the insulation of the distribution box is qualified by the resistance reading of the ohmmeter. However, there are many partitions in the distribution box, which is not convenient for testing the resistance between each partition and the outer shell, and manual testing is time-consuming and labor-intensive, which easily affects the test efficiency; therefore, it does not meet the existing needs. In this regard, we propose a distribution box insulation testing device. Summary of the invention

[0005] The present invention provides a distribution box insulation test device, which has the beneficial effects of saving manpower and improving test efficiency, and solves the problem that the existing test device mentioned in the above background technology usually adopts manual operation to clamp two connecting clamps of an ohmmeter on the outer shell of the distribution box and the partition inside it respectively, and judges whether the insulation of the distribution box is qualified by the resistance reading of the ohmmeter. However, there are many partitions in the distribution box, which is not convenient for testing the resistance between each partition and the outer shell, and manual testing is time-consuming and labor-intensive, which easily affects the test efficiency.

[0006] The present invention provides the following technical solution: a distribution box insulation test device, comprising a transmission mechanism, the transmission mechanism comprising a frame, a conveyor belt rotatably arranged on the side of the frame, a motor installed on the outside of the frame for driving the conveyor belt, and a positioning block installed on the outside of the conveyor belt for positioning the distribution box body;

[0007] The positioning blocks are arranged in an "L" shape, four of which form a group, the four corners of the distribution box body are slidably inserted between a group of positioning blocks, and the positioning blocks are arranged in several groups, so as to facilitate the placement of multiple distribution box bodies.

[0008] As an optional scheme of the distribution box insulation test device described in the present invention, wherein: a first wedge block is installed at the bottom of the conveyor belt, a lever is provided on the side of the frame, a support rod is rotatably inserted in the middle of the lever, and both ends of the support rod are inserted in the inner side of the frame, and one end of the lever close to the first wedge block is provided with a second wedge block used in conjunction with the first wedge block, the other end of the lever is connected to a plug, a sleeve is slidably sleeved on the outer side of the plug, a first spring is provided inside the sleeve, the two ends of the first spring are fixedly connected to the plug and the sleeve respectively, the feeler is fixedly connected to the end of the sleeve, one end of the first cable is electrically connected to the feeler, the other end of the first cable is electrically connected to the ohmmeter body, and the first cable is inserted in the plug and the sleeve;

[0009] A through groove is provided in the middle of the conveyor belt, and the through groove divides the conveyor belt into two parts. The second wedge block and the feeler are both arranged under the through groove, and the second wedge block and the feeler are both arranged below the conveyor belt.

[0010] As an optional scheme of the distribution box insulation testing device described in the present invention, wherein: a connecting frame is provided on the side of the frame, the contact piece is provided on the side of the connecting frame, the contact piece is provided as a "V"-shaped elastic piece, rotating shafts are installed on both sides of the middle of the contact piece, first sliders are slidably inserted on both sides of the connecting frame, second springs are provided on both sides of the connecting frame, the two ends of the second spring are respectively fixedly connected to the first slider and the connecting frame, the rotating shaft is rotatably inserted in the first slider, the ends of the contact pieces are connected to a sleeve shell, the sleeve shell is sleeved on the end of the connecting frame, and there is a gap between the sleeve shell and the connecting frame.

[0011] As an optional solution of the distribution box insulation testing device described in the present invention, a limit block is installed on the outer side of one of the rotating shafts, and a spring piece is installed in the first sliding block used in conjunction with it. The spring piece is configured as an arc-shaped piece, and the limit block is abutted between one end of the spring piece and the inner wall of the first sliding block.

[0012] As an optional scheme of the insulation testing device of a distribution box described in the present invention, wherein: a second slider is slidably inserted into the side of the connecting frame, the end of the rotating shaft connected to the limit block is fixedly connected to the second slider, a shaft rod is slidably inserted into the side of the connecting frame, a round piece is connected to one end of the shaft rod, the shaft rod is rotatably inserted into the inner side of the second slider, a regulating block is installed on the outer side of the shaft rod, the regulating block is set to be a round rod shape, an annular arc groove is opened on the inner side of the second slider, the regulating block is slidably inserted in the annular arc groove, the annular arc groove is closed at both ends, a clamping ring is installed at one end of the annular arc groove, the clamping ring is set to be a fracture arc piece with an arc greater than 180 degrees and elastic, and the regulating block can be slidably inserted into the clamping ring.

[0013] As an optional scheme of the distribution box insulation testing device described in the present invention, wherein: a cam is fixedly sleeved in the middle of the shaft rod, and the cam is arranged on the inner side of the connecting frame. The short diameter of the cam is in conflict with the connecting frame, and a groove body for the movement of the shaft rod is opened on the side of the connecting frame. A gear is installed at the other end of the shaft rod, and the gear is arranged on the outer side of the connecting frame. A first moving rod is arranged on the outer side of the frame, and a plurality of the connecting frames are evenly connected to the first moving rod, and the second cable is arranged on the inner side of the first moving rod. A plurality of the contact pieces are electrically connected to one end of the second cable, and the other end of the second cable is electrically connected to the ohmmeter body.

[0014] As an optional solution of the distribution box insulation testing device described in the present invention, the gear side is provided with a rack meshing with the gear, the outer side of the frame is provided with a second moving rod, and a plurality of the racks are evenly connected to the outer side of the second moving rod.

[0015] As an optional solution of the distribution box insulation testing device described in the present invention, a first telescopic member and a second telescopic member are installed on the outside of the frame, the telescopic end of the first telescopic member is fixedly connected to the first moving rod, and the telescopic end of the second telescopic member is fixedly connected to the second moving rod.

[0016] The present invention has the following beneficial effects:

[0017] 1. The distribution box insulation test device, the conveyor belt drives the distribution box body to move to the test position and then stops, the feeler contacts the distribution box body and is electrically connected to the ohmmeter body, then the first telescopic member drives the contact piece to move downward, slides and inserts between the spacers, the elastic upper end of the contact piece contacts the spacer, and the sleeve is arranged on the lower end of the connecting frame to prevent the contact piece from rotating, so that the contact piece contacts the spacer, and the spacer is electrically connected to the ohmmeter body, so that the insulation between the distribution box body and the spacer can be tested, finally, the rack moves downward, and the gear drives the shaft rod to rotate through the meshing of the rack and the gear, and the cam contacts the upper side of the connecting frame, and the shaft rod drives the contact piece to move downward, so that the sleeve is separated from the connecting frame, so that the shaft rod drives the contact piece to rotate and changes the angle of the contact piece, so that the contact piece is separated from the spacer, which saves labor and improves the test efficiency.

[0018] 2. The distribution box insulation test device, the moving first wedge block presses the second wedge block downward, so that the feeler is tilted upward. When the feeler contacts the distribution box body, the insert tube slides and is inserted into the sleeve. At the same time, the first spring is compressed. Under the action of the first spring rebound force, the feeler is pressed against the bottom of the distribution box body to avoid poor contact between the feeler and the distribution box body as much as possible. When the first wedge block is separated from the second wedge block, the feeler drops and resets, and is disconnected from the distribution box body, which is convenient for controlling the contact or separation of the feeler and the distribution box body, thereby facilitating the connection or disconnection of the distribution box body with the ohmmeter body.

[0019] 3. In the device for testing the insulation of the distribution box, when the shaft drives the contact piece to move downward, the regulating block slides in the annular arc groove and the contact piece does not rotate. After the housing is separated from the connecting frame, the regulating block slides and engages in the clamping ring, so that the shaft drives the contact piece to rotate and change the angle through the rotating shaft, thereby facilitating the separation of the contact piece from the spacer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the partial cutaway structure of the present invention.

[0023] Figure 4It is a schematic diagram of the explosion of the contact piece of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the contact piece of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the first moving rod of the present invention.

[0026] Figure 7 It is a schematic diagram of the cross-section structure of the shaft rod of the present invention.

[0027] Figure 8 It is a schematic diagram of the cross-section structure of the second sliding block of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the clamp ring of the present invention.

[0029] Fig.10 It is a schematic diagram of the cross-section structure of the contact piece and the spacer piece of the present invention.

[0030] Fig.11 It is a schematic diagram of the cutaway structure of the contact sheet and the spacer sheet separated from each other according to the present invention.

[0031] In the figure: 100, distribution box body; 110, ohmmeter body; 120, transmission mechanism; 121, frame; 122, conveyor belt; 1221, groove; 123, motor; 124, positioning block; 130, feeler; 131, first wedge block; 132, lever; 133, support rod; 134, second wedge block; 135, insert; 136, sleeve; 137, first spring; 138, through groove; 140, first cable; 150, spacer; 160, contact piece; 1601 , second cable; 161, rotating shaft; 162, connecting frame; 163, first slider; 164, second spring; 165, sleeve; 170, limit block; 171, spring piece; 172, second slider; 173, shaft; 174, disc; 175, regulating block; 176, annular arc groove; 177, retaining ring; 180, cam; 181, gear; 182, first moving rod; 183, rack; 184, second moving rod; 185, first telescopic member; 186, second telescopic member. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: This embodiment aims to promote the solution of the existing test device, which usually adopts manual operation to clamp the two connecting clamps of the ohmmeter on the outer shell of the distribution box and the spacer inside it respectively, and judges whether the insulation of the distribution box is qualified by the resistance reading of the ohmmeter. However, there are many spacers in the distribution box, which is not convenient for testing the resistance between each spacer and the outer shell, and the manual test is time-consuming and labor-intensive, which easily affects the test efficiency. Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 A distribution box insulation test device includes a conveying mechanism 120, which includes a frame 121 arranged on the ground, a conveyor belt 122 arranged on the side of the frame 121 through bearings and rollers, a motor 123 fixedly installed on the outside of the frame 121 for driving the conveyor belt 122, and a positioning block 124 fixedly installed on the outside of the conveyor belt 122 for positioning the distribution box body 100. The positioning block 124 is set to be "L"-shaped, four positioning blocks 124 form a group, and the four corners of the distribution box body 100 are slidably inserted between a group of positioning blocks 124, and the positioning blocks 124 are set to be several groups, which is convenient for placing multiple distribution box bodies 100.

[0034] A connecting frame 162 is provided on the side of the frame 121, and the contact piece 160 is provided on the side of the connecting frame 162. The contact piece 160 is set as a "V"-shaped elastic piece. A rotating shaft 161 is fixedly installed on both sides of the middle of the contact piece 160. A first slider 163 is slidably inserted on both sides of the connecting frame 162. A second spring 164 is provided on both sides of the connecting frame 162. The two ends of the second spring 164 are respectively fixedly connected to the first slider 163 and the connecting frame 162. The rotating shaft 161 is rotatably inserted in the first slider 163. The ends of the contact piece 160 are connected with a sleeve shell 165. The sleeve shell 165 is sleeved on the end of the connecting frame 162, and there is a gap between the sleeve shell 165 and the connecting frame 162. A limiting block 170 is fixedly installed on the outer side of one of the rotating shafts 161, and a spring piece 171 is installed in the first slider 163 used in conjunction with it. The spring piece 171 is set as an arc-shaped piece, and the limiting block 170 is abutted between one end of the spring piece 171 and the inner wall of the first slider 163.

[0035] A shaft 173 is slidably inserted into the side of the connecting frame 162, and a cam 180 is fixedly sleeved in the middle of the shaft 173. The cam 180 is arranged on the inner side of the connecting frame 162, and the short diameter of the cam 180 contacts the connecting frame 162. A groove body for the shaft 173 to move is opened on the side of the connecting frame 162. A gear 181 is fixedly installed on the other end of the shaft 173, and the gear 181 is arranged on the outer side of the connecting frame 162. A first moving rod 182 is arranged on the outer side of the frame 121. Several connecting frames 162 are evenly fixedly connected to the first moving rod 182, and the second cable 1601 is arranged on the inner side of the first moving rod 182. Several contact pieces 160 are electrically connected to one end of the second cable 1601, and the other end of the second cable 1601 is electrically connected to the ohmmeter body 110.

[0036] The side of the gear 181 is provided with a rack 183 meshing with the gear 181, and a second moving rod 184 is provided on the outside of the frame 121. Several racks 183 are evenly connected to the outside of the second moving rod 184. The first telescopic member 185 and the second telescopic member 186 are installed on the outside of the frame 121. The first telescopic member 185 and the second telescopic member 186 are both configured as hydraulic rods. The telescopic end of the first telescopic member 185 is fixedly connected to the first moving rod 182, and the telescopic end of the second telescopic member 186 is fixedly connected to the second moving rod 184.

[0037] In this embodiment, the conveyor belt 122 drives the distribution box body 100 to move to the test position and then stops, the feeler 130 contacts the distribution box body 100 and is electrically connected to the ohmmeter body 110, then the first telescopic member 185 drives the contact piece 160 to move downward and slides into between the spacers 150, the elastic upper end of the contact piece 160 abuts against the spacer 150, and the sleeve 165 is sleeved on the lower end of the connecting frame 162 to prevent the contact piece 160 from rotating, so that the contact piece 160 contacts the spacer 150, so that the spacer 150 and the ohmmeter body 110 are electrically connected, and ... contacts the spacer 150, and the spacer 150 and the ohmmeter body 110 are electrically connected, and then the first telescopic member 185 drives the contact piece 160 to move downward and slides into between the spacers 150, the elastic upper end of the contact piece 160 contacts the spacer 150, the spacer 150 and the ohmmeter body 110 are electrically connected, and then the first telescopic member 185 drives the contact piece 160 to move downward The meter body 110 is electrically connected, and the insulation between the distribution box body 100 and the spacer 150 can be tested. Finally, the rack 183 moves downward, and the gear 181 is meshed with the rack 183, so that the gear 181 drives the shaft 173 to rotate, and the cam 180 contacts the upper side of the connection frame 162, and the shaft 173 drives the contact piece 160 to move downward, so that the housing 165 is separated from the connection frame 162, so that the shaft 173 drives the contact piece 160 to rotate and change the angle of the contact piece 160, so that the contact piece 160 is separated from the spacer 150;

[0038] The gear 181 and the rack 183 move up synchronously, and then the gear 181 moves up to the original position and stops, and the rack 183 continues to move up to drive the gear 181 to rotate in the opposite direction, so that the contact piece 160 first rotates in the opposite direction and then moves up, thereby resetting the contact piece 160, and solving the problem of the existing test device as much as possible. Usually, the two terminal clamps of the ohmmeter are manually clamped on the outer shell of the distribution box and the partition inside it, and the insulation of the distribution box is judged by the resistance reading of the ohmmeter. However, there are many partitions in the distribution box, which is not convenient for testing the resistance between each partition and the outer shell, and the manual test is time-consuming and labor-intensive, which easily affects the test efficiency.

[0039] Embodiment 2: This embodiment is intended to facilitate solving the problem that it is inconvenient to control the contact or separation of the antenna 130 and the distribution box body 100, thereby making it inconvenient to connect or disconnect the distribution box body 100 and the ohmmeter body 110. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1 , Figure 2 and Figure 3 A plurality of first wedge blocks 131 are fixedly installed at the bottom of the conveyor belt 122, and the first wedge blocks 131 correspond to the positions of the distribution box body 100 on the conveyor belt 122 one by one. A groove 1221 is provided on the side of the conveyor roller for installing the conveyor belt 122, so that the first wedge blocks 131 can pass through the groove 1221 to avoid the conveyor roller from hindering the movement of the first wedge blocks 131. A lever 132 is provided on the side of the frame 121, and a support rod 133 is rotatably inserted in the middle of the lever 132. Both ends of the support rod 133 are inserted into the inner side of the frame 121. One end of the lever 132 close to the first wedge block 131 is fixedly installed with a support rod 133. A second wedge block 134 is used in conjunction with the block 131, and the other end of the lever 132 is fixedly connected with a plug 135, a sleeve 136 is slidably sleeved on the outside of the plug 135, and a space for the plug 135 to move is reserved in the sleeve 136, and a first spring 137 is arranged inside the sleeve 136, and the two ends of the first spring 137 are respectively fixedly connected to the plug 135 and the sleeve 136, the feeler 130 is fixedly connected to the end of the sleeve 136, one end of the first cable 140 is electrically connected to the feeler 130, and the other end of the first cable 140 is electrically connected to the ohmmeter body 110, and the first cable 140 is inserted into the plug 135 and the sleeve 136.

[0040] A through groove 138 is opened in the middle of the conveyor belt 122, and the through groove 138 divides the conveyor belt 122 into two parts. The second wedge block 134 and the feeler 130 are both arranged under the through groove 138, and the second wedge block 134 and the feeler 130 are both arranged below the conveyor belt 122, and the inclined surface of the first wedge block 131 can contact the inclined surface of the second wedge block 134.

[0041] In this embodiment: the moving first wedge block 131 presses the second wedge block 134 downward, so that the feeler 130 is tilted upward. When the feeler 130 contacts the distribution box body 100, the insert tube 135 slides and is inserted into the sleeve 136. At the same time, the first spring 137 is compressed. Under the action of the rebound force of the first spring 137, the feeler 130 is pressed against the bottom of the distribution box body 100, so as to avoid poor contact between the feeler 130 and the distribution box body 100 as much as possible. When the first wedge block 131 is separated from the second wedge block 134, the feeler 130 descends and resets, and is disconnected from the distribution box body 100, so as to facilitate the control of the contact or separation of the feeler 130 and the distribution box body 100, thereby facilitating the connection or disconnection of the distribution box body 100 and the ohmmeter body 110.

[0042] Embodiment 3: This embodiment is intended to solve the problem that it is inconvenient to drive the contact piece 160 to rotate and change the angle through the shaft 173, thereby making it inconvenient to separate the contact piece 160 from the spacer 150. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 A second slider 172 is slidably inserted into the side of the connecting frame 162, and the end of the rotating shaft 161 connecting the limited block 170 is fixedly connected to the second slider 172. A shaft rod 173 is slidably inserted into the side of the connecting frame 162, and a round piece 174 is connected to one end of the shaft rod 173. The shaft rod 173 is rotatably inserted into the inner side of the second slider 172, and a regulating block 175 is fixedly installed on the outer side of the shaft rod 173. The regulating block 175 is set in a round rod shape, and an annular arc groove 176 is opened on the inner side of the second slider 172. The regulating block 175 is slidably inserted in the annular arc groove 176. The annular arc groove 176 is closed at both ends, and a snap ring 177 is installed at one end of the annular arc groove 176. The snap ring 177 is set as a fracture arc piece with an arc greater than 180 degrees and elasticity, and the regulating block 175 can be slidably inserted into the snap ring 177.

[0043] In this embodiment: when the shaft 173 drives the contact piece 160 to move downward, the regulating block 175 slides in the annular arc groove 176, and the contact piece 160 does not rotate. After the shell 165 is separated from the connecting frame 162, the regulating block 175 slides and is engaged in the retaining ring 177, so that the shaft 173 drives the contact piece 160 to rotate and change the angle through the rotating shaft 161, thereby facilitating the separation of the contact piece 160 from the spacer 150.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A distribution box insulation test device, characterized in that: The invention comprises a conveying mechanism (120), wherein the conveying mechanism (120) comprises a frame (121), a conveying belt (122) rotatably arranged on the side of the frame (121), a motor (123) installed on the outside of the frame (121) for driving the conveying belt (122), and a positioning block (124) installed on the outside of the conveying belt (122) for positioning the distribution box body (100); The positioning blocks (124) are arranged in an "L" shape, four positioning blocks (124) form a group, the four corners of the distribution box body (100) are slidably inserted between a group of positioning blocks (124), and the positioning blocks (124) are arranged in a plurality of groups, so as to facilitate the placement of a plurality of distribution box bodies (100); A connecting frame (162) is arranged on the side of the frame (121), and the contact piece (160) is arranged on the side of the connecting frame (162). The contact piece (160) is arranged as a "V"-shaped elastic piece. A rotating shaft (161) is installed on both sides of the middle of the contact piece (160). A first slider (163) is slidably inserted on both sides of the connecting frame (162). A second spring (164) is arranged on both sides of the connecting frame (162). The two ends of the second spring (164) are respectively fixedly connected to the first slider (163) and the connecting frame (162). The rotating shaft (161) is rotatably inserted in the first slider (163). The ends of the contact piece (160) are connected to a sleeve (165). The sleeve (165) is sleeved on the end of the connecting frame (162), and there is a gap between the sleeve (165) and the connecting frame (162); A first wedge block (131) is installed at the bottom of the conveyor belt (122), a lever (132) is arranged on the side of the frame (121), a support rod (133) is rotatably inserted in the middle of the lever (132), both ends of the support rod (133) are inserted in the inner side of the frame (121), one end of the lever (132) close to the first wedge block (131) is installed with a second wedge block (134) used in conjunction with the first wedge block (131), the other end of the lever (132) is connected to a plug (135), the outer side of the plug (135) is slidably connected to the second wedge block (134) and the second wedge block (134) is installed in conjunction with the first wedge block (131). The movable sleeve is provided with a sleeve (136), a first spring (137) is provided inside the sleeve (136), two ends of the first spring (137) are respectively fixedly connected to the insertion tube (135) and the sleeve (136), the feeler (130) is fixedly connected to the end of the sleeve (136), one end of the first cable (140) is electrically connected to the feeler (130), the other end of the first cable (140) is electrically connected to the ohmmeter body (110), and the first cable (140) is plugged into the insertion tube (135) and the sleeve (136); A through groove (138) is provided in the middle of the conveyor belt (122), and the through groove (138) divides the conveyor belt (122) into two parts. The second wedge block (134) and the feeler (130) are both arranged under the through groove (138), and the second wedge block (134) and the feeler (130) are both arranged below the conveyor belt (122).

2. The distribution box insulation test device according to claim 1, characterized in that: A limiting block (170) is installed on the outer side of one of the rotating shafts (161), and a spring sheet (171) is installed in the first sliding block (163) used in conjunction therewith, wherein the spring sheet (171) is configured as an arc-shaped sheet, and the limiting block (170) is abutted between one end of the spring sheet (171) and the inner wall of the first sliding block (163).

3. The distribution box insulation test device according to claim 2, characterized in that: A second slider (172) is slidably inserted into the side of the connection frame (162); the end of the rotating shaft (161) connected to the limit block (170) is fixedly connected to the second slider (172); a shaft (173) is slidably inserted into the side of the connection frame (162); one end of the shaft (173) is connected to a round piece (174); the shaft (173) is rotatably inserted into the inner side of the second slider (172); and a regulating block (175) is installed on the outer side of the shaft (173). The regulating block (175) is configured to be in the shape of a round rod. An arc groove (176) is provided on the inner side of the second sliding block (172). The regulating block (175) is slidably inserted into the arc groove (176). The arc groove (176) is closed at both ends. A snap ring (177) is installed at one end of the arc groove (176). The snap ring (177) is configured to be a fracture arc piece with an arc greater than 180 degrees and elasticity. The regulating block (175) can be slidably inserted into the snap ring (177).

4. The distribution box insulation test device according to claim 3 is characterized in that: A cam (180) is fixedly sleeved in the middle of the shaft rod (173), and the cam (180) is arranged on the inner side of the connecting frame (162). The short diameter of the cam (180) contacts the connecting frame (162), and a groove body for the shaft rod (173) to move is opened on the side of the connecting frame (162). A gear (181) is installed on the other end of the shaft rod (173), and the gear (181) is arranged on the outer side of the connecting frame (162). A first moving rod (182) is arranged on the outer side of the frame (121). A plurality of the connecting frames (162) are evenly connected to the first moving rod (182). A second cable (1601) is arranged on the inner side of the first moving rod (182). A plurality of the contact pieces (160) are electrically connected to one end of the second cable (1601) together, and the other end of the second cable (1601) is electrically connected to the ohmmeter body (110).

5. The distribution box insulation test device according to claim 4, characterized in that: The side of the gear (181) is provided with a rack (183) meshing with the gear (181), the outer side of the frame (121) is provided with a second moving rod (184), and a plurality of the racks (183) are evenly connected to the outer side of the second moving rod (184).

6. The distribution box insulation test device according to claim 5, characterized in that: A first telescopic member (185) and a second telescopic member (186) are installed on the outside of the frame (121); the telescopic end of the first telescopic member (185) is fixedly connected to the first moving rod (182), and the telescopic end of the second telescopic member (186) is fixedly connected to the second moving rod (184).

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