Electrical element testing device for high and low voltage engineering

Abstract

The utility model provides an electrical element testing device for high and low voltage engineering, and relates to the technical field of electrical element testing, the electrical element testing device comprises a front-end electricity testing mechanism applied to a testing area of the electrical element testing device, the front-end electricity testing mechanism comprises a fixed arm, a lap joint arm and an electricity testing rod, a strip-shaped groove is machined in the lap joint arm, and a supporting shaft sleeve is machined at the bottom of one end of the lap joint arm; the outside of one end of the supporting shaft sleeve is in threaded connection with a fastening nut; one end of the lap joint arm is buckled with a limiting clamping head; the electricity measuring rod comprises an electricity measuring sleeve, a nut, a buckle cap, a pull rod, a spring, a contact rod and a limiting strip. According to the technical key points, the supporting shaft sleeve at one end of the lap joint arm is taken as a basic reference point, the other electricity testing rod slides in the strip-shaped groove, and the lap joint arm rotates around the supporting shaft sleeve at the top of the fixed arm, so that the other electricity testing rod can be adjusted to any contact when an electrical element is tested, and the flexibility of testing operation is ensured; and test work of various types of electrical elements can be carried out conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical component testing, in particular to an electrical component testing device for high and low voltage engineering. Background Art

[0002] As the name suggests, high and low voltage power distribution projects are power distribution equipment that connect high-voltage distribution cabinets, low-voltage switch cabinets and connecting cables. Electrical component testing devices for high and low voltage projects refer to devices that detect the conductivity of electronic components used in high and low voltage projects, usually to detect whether they can meet the conductivity supply and demand requirements.

[0003] Patent document CN212008682U discloses a test device for electrical components used in high and low voltage engineering projects. The device optimizes the adjustment mechanism, utilizes a slide structure on the side of the housing, and cooperates with a center rod and outer sleeve for guidance and adjustment. The socket is optimally positioned on the insulating seat. A side limit plate is also provided at the edge to limit displacement deviation during insertion. The device can be easily matched with a top contact rod for contact detection, resulting in excellent performance.

[0004] At the same time, by optimizing the setting of the contact rod, the spring and the clamping column are installed on the square sleeve. During the contact rod test, a compressive force can be applied to the spring to cause it to deform. During the conduction process, the electronic components are efficiently pressed and elastically fastened, and the cooperation effect is good.

[0005] However, in the process of implementing the above technical solution, it was found that the above technical solution had the following technical problems:

[0006] Existing electrical component testing devices for high and low voltage engineering use adjustment mechanisms and contact rods to ensure release accuracy and stability. However, due to the wide variety and different shapes of electrical components, the design of the adjustment mechanism and contact rod is difficult to adapt to various special-shaped electrical components, and there are certain limitations. Utility Model Content

[0007] In order to overcome the shortcomings of existing electrical component testing devices for high and low voltage engineering due to the characteristics of many types and different shapes of electrical components, the design of the adjustment mechanism and the contact rod is difficult to adapt to various special-shaped electrical components, and there are certain limitations. The embodiment of the present application provides an electrical component testing device for high and low voltage engineering, by carrying two measuring rods on multiple overlapping arms on the fixed arm, the support shaft sleeve at one end of the overlapping arm can be used as a basic reference point to ensure that the bottom of the measuring rod contacts any contact point of the electrical component when being tested, and the other measuring rod slides inside the strip groove and cooperates with the overlapping arm to rotate around the support shaft sleeve on the top of the fixed arm, so that the other measuring rod can be adjusted to any contact point of the electrical component when being tested, thereby ensuring the flexibility of the test operation and being applicable to electrical components of any shape;

[0008] At the same time, the measuring rod located on the inner side of the supporting shaft sleeve is clamped to the inside of the annular groove with the help of a limiting strip, so that the measuring rod and the overlapping arm are fixed. The measuring rod can be rotated so that the two limiting strips on the outer wall of the bottom of the measuring rod can be withdrawn from the inside of the annular groove and correspond to the four corner grooves respectively, so that the measuring rod can be removed from this position, so that the measuring rod taken out from the inside of the supporting shaft sleeve can be flexibly controlled to contact the contact position on the electrical component with the measuring rod that has completed position adjustment as the basis, so as to cope with various emergencies.

[0009] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0010] An electrical component testing device for high and low voltage engineering includes a front-end electrical measurement mechanism applied in its test area, including a fixed arm, a bridging arm and an electrical measurement rod, wherein the fixed arm is assembled and fixed to the testing device;

[0011] There are multiple overlapping arms, and one end of each of them is arranged on the top of the fixed arm;

[0012] There are multiple measuring poles, all of which are arranged inside the lap arm;

[0013] Among them, a strip groove is processed inside the lap arm, a support sleeve is processed at the bottom of one end of the lap arm, a fastening nut is connected to the outside of one end of the support sleeve in a threaded manner, the support sleeve is rotatably connected to the inside of the fixed arm, the measuring rod is slidably connected to the inside of the strip groove, and the measuring rod is inserted into the inside of one end of the lap arm.

[0014] In one possible implementation, the measuring rod includes an measuring bushing, one end of the measuring bushing is threadedly connected to a nut, the other end of the measuring bushing is plugged with a buckle cap, the interior of the measuring bushing is movably connected to a pull rod, the outside of the pull rod is socket-connected to a spring, one end of the pull rod is machined with a contact rod, the contact rod is slidably connected to the inside of the buckle cap, the pull rod is slidably connected to the inside of the nut, and one end of the measuring wire connected to the test device passes through the inside of the pull rod and is connected to one end of the contact rod.

[0015] In a possible implementation, the cross-section of the pull rod is T-shaped, and both ends of the spring are supported on the interior of the nut and the surface of one end of the pull rod, respectively, so that the pull rod pushes the contact rod to extend from the interior of the buckle cap.

[0016] In a possible implementation, both sides of the electrical measuring bushing are processed with straight cut surfaces, and two limit strips are processed in the middle of the two straight cut surfaces on the electrical measuring bushing. The two limit strips located on the same straight cut surface are respectively located at the top and bottom of the overlap arm, and the two straight cut surfaces on the electrical measuring bushing are respectively in contact with the inner walls on both sides of the strip groove.

[0017] In one possible implementation, one end of the lap arm is buckled with a limit clamp, and both side outer walls of one end of the limit clamp are integrally formed with limit blocks. A slot is processed inside one end of the lap arm, and the inside of the slot is connected to the inside of the strip groove. The two limit blocks on the limit clamp are respectively clamped inside the two ends of the slot.

[0018] In a possible implementation, a control rubber sleeve is interference-fitted on the outside of one end of the pull rod, and the control rubber sleeve controls the pull rod to move toward the top and compresses the spring.

[0019] In one possible implementation, four corner grooves are machined inside one end of the lap arm. The four corner grooves are combined in pairs and correspond to the limit strips on the outer walls of the two sides of the electrical measuring bushing, respectively, to support the electrical measuring bushing to be inserted from the top into the inside of the lap arm.

[0020] In a possible implementation, an annular groove is machined inside one end of the lap arm, the annular groove is connected to the inside of the support sleeve, and two limiting bars at the bottom of the outer wall of the electrical measuring bushing are snapped into the inside of the annular groove.

[0021] In summary, the present invention has at least one of the following beneficial technical effects:

[0022] 1. By equipping multiple overlapping arms on the fixed arm with two measuring rods, the support sleeve at one end of the overlapping arm can be used as a basic reference point to ensure that the bottom of the measuring rod contacts any contact point of the electrical component being tested. The other measuring rod slides inside the strip groove and cooperates with the overlapping arm to rotate around the support sleeve on the top of the fixed arm. The other measuring rod can be adjusted to any contact point of the electrical component being tested, ensuring the flexibility of the test operation and being applicable to electrical components of any shape.

[0023] 2. The measuring rod located on the inner side of the support sleeve is clamped to the inside of the annular groove by means of a limiting strip, so that the measuring rod and the lap arm are fixed. The measuring rod can be rotated so that the two limiting strips on the outer wall of the bottom of the measuring rod are withdrawn from the inside of the annular groove and correspond to the four corner grooves respectively. The measuring rod can be removed from this position. With the measuring rod having completed position adjustment as the base point, the measuring rod removed from the support sleeve can be flexibly controlled to contact the contact position on the electrical component, which is convenient for responding to various emergencies.

[0024] 3. By controlling the pull rod to move toward the top, the spring is compressed, so that the bottom of the measuring rod moves to the top of the contact point of the tested electrical component, so that the contact rod connected to the pull rod is pressed against the contact point of the electrical component with the help of the spring reset, ensuring a stable connection between the measuring rod and the contact point of the electrical component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the overall structure of the front-end electrical measurement mechanism of the utility model;

[0026] Figure 2 This is one of the schematic diagrams of the connection structure between the lap arm and the measuring pole of the utility model;

[0027] Figure 3 This is a cross-sectional view of the utility model measuring rod;

[0028] Figure 4 This is a schematic diagram of the structure of the diagonal support member of the limit clamp of the utility model;

[0029] Figure 5 This is the second schematic diagram of the connection structure between the lap arm and the measuring pole of the utility model;

[0030] Figure 6 It is a cross-sectional view of the lap arm of the utility model.

[0031] Figure numerals: 1. Fixed arm; 2. Fastening nut; 3. Strip groove; 4. Measuring pole; 401. Contact rod; 402. Control rubber sleeve; 403. Nut; 404. Buckle cap; 405. Measuring bushing; 406. Limiting strip; 407. Spring; 5. Overlap arm; 6. Limiting clamp; 7. Supporting shaft sleeve; 8. Clamping groove; 9. Measuring wire; 10. Limiting block; 11. Pull rod; 12. Angle groove; 13. Ring groove. DETAILED DESCRIPTION

[0032] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0033] Example 1:

[0034] This embodiment introduces a specific structure of a high and low voltage engineering electrical component testing device. Figures 1-6 As shown, it includes a fixed arm 1 assembled and fixed with the test device, a plurality of bridging arms 5 with one end each set on the top of the fixed arm 1, and a plurality of measuring rods 4 each set inside the bridging arm 5. The bridging arm 5 is processed with a strip groove 3 inside, and a support sleeve 7 is processed at the bottom of one end of the bridging arm 5. A fastening nut 2 is threadedly connected to the outside of one end of the support sleeve 7.

[0035] Among them, by inserting the support sleeve 7 into the interior of the fixed arm 1 and threading the fastening nut 2 on the exterior of the support sleeve 7, the support sleeve 7 can be rotated inside the fixed arm 1 when the fastening nut 2 does not apply pressure to the bottom surface of the lap arm 5 (when the threaded connection between the fastening nut 2 and the support sleeve 7 is adjusted so that the fastening nut 2 applies pressure to the bottom of the lap arm 5, the lap arm 5 can be fixed to the top of the fixed arm 1);

[0036] like Figure 3As shown, the electric measuring pole 4 includes an electric measuring bushing 405. Both sides of the electric measuring bushing 405 are processed with straight cut surfaces. The middle of the two straight cut surfaces on the electric measuring bushing 405 are processed with two limit strips 406.

[0037] Among them, by making the two limit bars 406 located on the same straight section respectively located at the top and bottom of the overlapping arm 5, the two straight sections on the measuring bushing 405 are respectively fitted with the inner walls of the two sides of the strip groove 3. The limit bars 406 can be used to limit the top and bottom of the overlapping arm 5, supporting the measuring rod 4 to slide inside the strip groove 3 (so as to achieve the effect of flexibly controlling the measuring point position of the measuring rod 4);

[0038] Secondly, in order to prevent the measuring rod 4 from sliding out from one end inside the strip groove 3, as shown in FIG. Figure 2 and Figure 4 As shown, one end of the lap arm 5 is buckled with the limit clamp 6, and the outer walls on both sides of one end of the limit clamp 6 are integrally formed with limit blocks 10. A card slot 8 is processed inside one end of the lap arm 5. Because the interior of the card slot 8 is connected to the interior of the strip groove 3, when the limit clamp 6 is inserted into one end of the lap arm 5, one end of the limit clamp 6 can be deformed toward the center first, and then the two limit blocks 10 on the limit clamp 6 are respectively clamped into the interior of the two ends of the card slot 8;

[0039] At the same time, in order to ensure that the measuring rod 4 can be inserted into the interior of one end of the bridging arm 5 and fixed, Figure 5 and Figure 6 As shown, four corner grooves 12 are processed inside one end of the lap arm 5, and an annular groove 13 is processed inside one end of the lap arm 5. By combining the four corner grooves 12 in pairs and corresponding to the limit strips 406 on the outer walls of both sides of the electrical measuring sleeve 405, when the electrical measuring sleeve 405 passes through the inside of the lap arm 5, the limit strips 406 pass through the inside of the corner grooves 12, so that one end of the electrical measuring sleeve 405 can be extended to the inside of the support shaft sleeve 7. At this time, since the annular groove 13 is connected to the inside of the support shaft sleeve 7, the electrical measuring sleeve 405 can be rotated so that the two limit strips 406 at the bottom of the outer wall of the electrical measuring sleeve 405 are snap-fitted into the inside of the annular groove 13 to complete the fixing work (when the electrical measuring pole 4 needs to be removed, it is only necessary to rotate the electrical measuring sleeve 405 so that the limit strips 406 are aligned with the corner grooves 12 to ensure that the electrical measuring sleeve 405 can be withdrawn from the inside of the support shaft sleeve 7).

[0040] By adopting the above technical solutions:

[0041] The above design assembles a fixed arm 1 on the electrical component test device for high and low voltage engineering, so that the multiple overlapping arms 5 connected to the fixed arm 1 each carry two measuring rods 4. When testing the electrical components, the limiting strip 406 on one measuring rod 4 is first used to cooperate with the overlapping arm 5 to support the measuring rod 4 to slide from one end to the other inside the strip groove 3. The support shaft sleeve 7 at the bottom of one end of the overlapping arm 5 can be rotated inside the fixed arm 1 to adjust the position of the measuring rod 4 inside the strip groove 3 to move it to the contact position when the electrical component is being tested.

[0042] At the same time, the measuring rod 4 inserted into the support sleeve 7 ensures stable contact as a basic reference point, which can support testing work in most cases. When it is difficult to fix the position of another measuring rod 4 by one measuring rod 4 to complete the testing work, the measuring rod 4 located on the inner side of the support sleeve 7 can be rotated so that the two limit bars 406 on the bottom outer wall of the measuring rod 4 withdraw from the inside of the annular groove 13 and correspond to the four corner grooves 12 respectively, and the measuring rod 4 is removed from this position, so that the measuring rod 4 (located inside the strip groove 3) that has completed the position adjustment can be used as the basic point to flexibly control the other measuring rod 4 (located on the inner side of the support sleeve 7) to contact the contact position on the electrical component to perform corresponding testing work.

[0043] Example 2:

[0044] Based on Example 1, this example describes the specific structure of the electric measuring rod 4. The electric measuring rod 4 includes an electric measuring bushing 405. A nut 403 is threadedly connected to one end of the electric measuring bushing 405. A buckle cap 404 is plugged into the other end of the electric measuring bushing 405. A pull rod 11 is movably connected to the interior of the electric measuring bushing 405. A spring 407 is sleeved on the exterior of the pull rod 11. A contact rod 401 is machined on one end of the pull rod 11.

[0045] The cross section of the pull rod 11 is T-shaped, and the two ends of the spring 407 are supported on the inside of the nut 403 and the surface of one end of the pull rod 11, respectively, so that the pull rod 11 pushes the contact rod 401 out of the inside of the buckle 404 and maintains this state.

[0046] At the same time, by making the contact rod 401 slidably connected to the inside of the buckle cap 404, the pull rod 11 slidably connected to the inside of the nut 403, and one end of the current measuring wire 9 connected to the test device passing through the inside of the pull rod 11 and connected to one end of the contact rod 401, when one end of the contact rod 401 is connected to the contact point of the electrical component being tested, current can flow through the interior of the electrical component being tested;

[0047] Secondly, in order to facilitate the control of the contact rod 401 to be retracted into the interior of the electrical measuring sleeve 405 and reset under the support of the spring 407, it is stably supported at the contact point of the electrical component being tested, such as Figure 3 As shown, the external interference fit of one end of the pull rod 11 is provided with a control rubber sleeve 402. By holding the control rubber sleeve 402 to control the pull rod 11 to move toward the top, and compressing the spring 407 with the help of one end of the pull rod 11, the bottom of the measuring rod 4 can be moved to the top of the contact point of the electrical component being tested. When the control rubber sleeve 402 is released, the spring 407 is reset, pushing the pull rod 11 to drive the contact rod 401 to the bottom to support the contact point of the electrical component being tested.

[0048] By adopting the above technical solutions:

[0049] The above design controls the pull rod 11 to move toward the top by holding the control rubber sleeve 402, and compresses the spring 407 with the help of one end of the pull rod 11, so that when the pull rod 11 slides inside the nut 403, it drives the contact rod 401 to slide inside the buckle cap 404, so that the bottom of the measuring rod 4 can be moved to the top of the contact point of the electrical component being tested. After releasing the control rubber sleeve 402, the spring 407 resets and drives the contact rod 401 connected to the pull rod 11 to extend from the inside of the buckle cap 404 and rest on the contact point of the electrical component, so as to facilitate the stable connection between the measuring rod 4 and the contact point of the electrical component.

[0050] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A test device for electrical components used in high and low voltage engineering, comprising a front-end electrical measurement mechanism applied in its test area, characterized in that: include: A fixed arm (1) which is assembled and fixed to the test device; A plurality of overlapping arms (5) are provided, and one end of each overlapping arm is provided on the top of the fixed arm (1); A plurality of electric measuring poles (4) are provided, and all of them are arranged inside the lap arm (5); The interior of the lap arm (5) is processed with a strip groove (3), the bottom of one end of the lap arm (5) is processed with a support sleeve (7), the external threaded connection of one end of the support sleeve (7) is connected with a fastening nut (2), the support sleeve (7) is rotatably connected to the interior of the fixed arm (1), the measuring rod (4) is slidably connected to the interior of the strip groove (3), and the measuring rod (4) is plugged into the interior of one end of the lap arm (5).

2. The electrical component testing device for high and low voltage engineering according to claim 1, characterized in that: The measuring rod (4) includes a measuring bushing (405), one end of the measuring bushing (405) is threadedly connected to a nut (403), the other end of the measuring bushing (405) is plugged with a buckle cap (404), the interior of the measuring bushing (405) is movably connected to a pull rod (11), the exterior of the pull rod (11) is sleeve-connected to a spring (407), and one end of the pull rod (11) is processed with a contact rod (401); The contact rod (401) is slidably connected to the inside of the buckle cap (404), the pull rod (11) is slidably connected to the inside of the nut (403), and one end of the measuring wire (9) connected to the test device passes through the inside of the pull rod (11) and is connected to one end of the contact rod (401).

3. The electrical component testing device for high and low voltage engineering according to claim 2, characterized in that: The cross section of the pull rod (11) is T-shaped, and the two ends of the spring (407) are respectively supported on the inside of the nut (403) and the surface of one end of the pull rod (11), so that the pull rod (11) pushes the contact rod (401) to extend from the inside of the buckle cap (404).

4. The high and low voltage engineering electrical component testing device according to claim 2, characterized in that: Both sides of the electrical measuring bushing (405) are processed with straight cut surfaces, and the middle parts of the two straight cut surfaces on the electrical measuring bushing (405) are processed with two limit strips (406); The two limit strips (406) located on the same straight section are respectively located at the top and bottom of the lap arm (5), and the two straight sections on the electrical measuring bushing (405) are respectively fitted with the inner walls on both sides of the strip groove (3).

5. The high and low voltage engineering electrical component testing device according to claim 1, characterized in that: One end of the lap arm (5) is buckled with a limit clamp (6), both sides of the outer wall of one end of the limit clamp (6) are integrally formed with a limit block (10), and a clamping groove (8) is processed inside one end of the lap arm (5); The interior of the card slot (8) is connected to the interior of the strip slot (3), and the two limiting blocks (10) on the limiting clamp (6) are respectively clamped in the interiors of both ends of the card slot (8).

6. The electrical component testing device for high and low voltage engineering according to claim 2, characterized in that: The external interference fit of one end of the pull rod (11) is provided with a control rubber sleeve (402), and the control rubber sleeve (402) controls the pull rod (11) to move toward the top and compresses the spring (407).

7. The electrical component testing device for high and low voltage engineering according to claim 1, characterized in that: Four angle grooves (12) are machined inside one end of the lap arm (5), and the four angle grooves (12) are combined in pairs and correspond to the limiting strips (406) on the outer walls of the two sides of the electrical measuring bushing (405), respectively, to support the electrical measuring bushing (405) to be inserted into the interior of the lap arm (5) from the top.

8. The electrical component testing device for high and low voltage engineering according to claim 2, characterized in that: An annular groove (13) is machined inside one end of the lap arm (5), and the annular groove (13) is connected to the inside of the support sleeve (7). Two limiting strips (406) at the bottom of the outer wall of the electrical measuring bushing (405) are snap-fitted to the inside of the annular groove (13).

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