CN212410782U - Loop resistance testing device - Google Patents
Loop resistance testing device Download PDFInfo
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- CN212410782U CN212410782U CN202020867789.1U CN202020867789U CN212410782U CN 212410782 U CN212410782 U CN 212410782U CN 202020867789 U CN202020867789 U CN 202020867789U CN 212410782 U CN212410782 U CN 212410782U
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- fixedly connected
- block
- resistance testing
- loop resistance
- guide rail
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
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Abstract
The utility model discloses a return circuit resistance testing arrangement relates to the resistance test field. This loop resistance testing arrangement includes mainboard and inserted block, the back of mainboard is equipped with presss from both sides tight fixed establishment, the two sets of guide rails of positive fixedly connected with of mainboard, the spout has been seted up to the relative one side of guide rail, the both sides fixedly connected with cutting of inserted block, the cutting activity is pegged graft in the spout, be equipped with the locking mechanism corresponding with the cutting on the guide rail, the front of inserted block is equipped with the wire, the back fixedly connected with sleeve of inserted block, telescopic inner chamber sliding connection has the slider, one side fixedly connected with contact main part of slider. This loop resistance testing arrangement has realized when measuring electrically conductive loop resistance, uses the tight fixed establishment of clamp to fix the mainboard on the circuit breaker, and wire and contact main part can not drop when the test, and the installation back contact main part supports tightly and laminates with the moving contact moreover, makes it form effective contact.
Description
Technical Field
The utility model relates to a resistance test technical field specifically is a loop resistance testing arrangement.
Background
Along with the flourishing development of national economy, the living standard of the masses is continuously improved, the power consumption is gradually increased, the investment on the power grid construction is gradually increased for the national grid to adapt to the power consumption demand, and as a routine test item of the circuit breaker, the loop resistance value can directly reflect the installation quality of the circuit breaker and whether unallowable heating is generated when short circuit occurs.
The measuring of the conductive loop resistance is an important test item of the circuit breaker, is limited by the structure of the circuit breaker and test conditions, cannot directly connect a test wire to a conductive rod of a moving contact, can only be connected with the moving contact in an external mode, is inserted into the moving contact in test operation, but has no fixing device, is easy to fall off during testing through simple insertion, and the contact condition after installation is not good, and cannot effectively form contact.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model discloses a loop resistance testing arrangement to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a loop resistance testing arrangement, includes mainboard and inserted block, the back of mainboard is equipped with presss from both sides tight fixed establishment, the positive fixedly connected with two sets of guide rails of mainboard, the spout has been seted up to the relative one side of guide rail, the both sides fixedly connected with cutting of inserted block, one side that the cutting was kept away from the cutting is equipped with the ratchet, the cutting activity is pegged graft in the spout, be equipped with the locking mechanism corresponding with the cutting on the guide rail, the front of inserted block is equipped with the wire, the back fixedly connected with sleeve of inserted block, telescopic inner chamber sliding connection has the slider, one side fixedly connected with contact main part of slider, the opposite side fixedly connected with of slider supports tight spring, the front center department of mainboard has seted up the round hole, the wire passes the cutting and gets into telescopic inner chamber and with slider and contact main part electric connection.
Preferably, press from both sides tight fixed establishment and include the curb plate, the quantity of curb plate is two sets of and symmetry fixed connection at the back of mainboard, the lateral wall of curb plate is equipped with the screw and threaded connection has the threaded rod.
Preferably, one end of the threaded rod is fixedly connected with a rotating handle, and the other end of the threaded rod is fixedly connected with a propping block.
Preferably, the locking mechanism comprises a rectangular groove, the rectangular groove is formed in one side, far away from the sliding groove, of the guide rail, a sliding plate is connected in the rectangular groove in a sliding mode, a pawl is fixedly connected to one side of the sliding plate, penetrates through the guide rail and extends into the sliding groove, the pawl is movably clamped with the ratchet, a return spring is fixedly connected to the other side of the sliding plate, and a baffle is fixedly connected to one side, far away from the sliding groove, of the guide rail.
Preferably, one end of the return spring, which is far away from the sliding plate, is fixedly connected to the baffle plate, the return spring is in a compressed state, and one side of the sliding plate, which is far away from the pawl, is fixedly connected with a handle.
Preferably, the radial width of the circular hole is greater than the radial width of the sleeve.
Preferably, one end of the abutting spring, which is far away from the sliding block, is fixedly connected to the side wall of the inner cavity of the sleeve, and the abutting spring is in a compressed state.
The utility model discloses a return circuit resistance testing arrangement, its beneficial effect who possesses as follows:
1. this loop resistance testing arrangement, through setting up the mainboard, press from both sides tight fixed establishment, the guide rail, the inserted block, the cutting, locking mechanism, sleeve and contact main part, realized when measuring electrically conductive loop resistance, it links to each other with the moving contact to carry out external mode, use and press from both sides tight fixed establishment to fix on the circuit breaker the mainboard, then when inserting the inserted block, the guide rail and the locking mechanism that set up have realized stable the inserting in the guide rail of inserted block, wire and contact main part can not drop when the test, and the reaction force of supporting tight spring after the installation can have a thrust to the slider to make contact main part and moving contact support tightly and laminate, make it form effective contact.
2. This loop resistance testing arrangement when the inserted block is pulled down to needs, can pull the handle, and the handle drives the sliding plate and slides in the rectangular channel and compress reset spring, and the sliding plate and then drive the pawl motion and break away from with the block of ratchet, directly extract this moment the inserted block can, reset spring's reaction force can make pawl and ratchet looks block, easy operation is convenient, labour saving and time saving.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the schematic view of the installation of the insert block of the present invention.
Fig. 3 is a cross-sectional view of the guide rail of the present invention.
Fig. 4 is a cross-sectional view of the sleeve of the present invention.
In the figure: 1. a main board; 101. a circular hole; 2. a side plate; 201. a threaded rod; 202. a propping block; 203. turning a handle; 3. a guide rail; 300. a chute; 301. a rectangular groove; 302. a sliding plate; 303. a pawl; 304. a baffle plate; 305. a return spring; 306. a handle; 4. inserting a block; 401. a wire; 5. cutting; 501. a ratchet; 6. a sleeve; 601. a slider; 602. the spring is tightly propped; 603. a contact body.
Detailed Description
The embodiment of the utility model provides a loop resistance testing arrangement, as shown in fig. 1-4, including mainboard 1 and inserted block 4, the back of mainboard 1 is equipped with and presss from both sides tight fixed establishment, and two sets of guide rails 3 of the positive fixedly connected with of mainboard 1, spout 300 has been seted up to one side that guide rail 3 is relative, and the both sides fixedly connected with cutting 5 of inserted block 4, one side that inserted block 4 was kept away from to cutting 5 is equipped with ratchet 501.
The inserting strip 5 is movably inserted in the sliding groove 300, the guide rail 3 is provided with a locking mechanism corresponding to the inserting strip 5, the front of the inserting block 4 is provided with a lead 401, the back of the inserting block 4 is fixedly connected with a sleeve 6, the inner cavity of the sleeve 6 is connected with a slide block 601 in a sliding way, one side of the slide block 601 is fixedly connected with a contact main body 603, the other side of the slide block 601 is fixedly connected with a resisting spring 602, the center of the front of the main board 1 is provided with a round hole 101, the lead 401 passes through the inserting block 4 to enter the inner cavity of the sleeve 6 and is electrically connected with the slide block 601 and the contact main body 603, by arranging the main board 1, the clamping and fixing mechanism, the guide rail 3, the inserting block 4, the inserting strip 5, the locking mechanism, the sleeve 6 and the contact main body 603, when the resistance of a conductive loop is measured, the external connection, the guide rail 3 and the locking mechanism that set up have realized that the inserted block 4 is stable inserts in guide rail 3, and wire 401 and contact main part 603 can not drop when the test, and the reaction force of supporting tight spring 602 after the installation can have a thrust to slider 601 to make contact main part 603 support tightly and laminate with the moving contact moreover, make it form effective contact.
Press from both sides tight fixed establishment and include curb plate 2, and the quantity of curb plate 2 is two sets of and symmetry fixed connection at the back of mainboard 1, and the lateral wall of curb plate 2 is equipped with screw and threaded connection has threaded rod 201, presss from both sides tight fixed mode and only needs to rotate threaded rod 201 and can realize, easy operation is convenient.
The one end fixedly connected with of threaded rod 201 changes 203, and the other end fixedly connected with of threaded rod 201 supports tight piece 202, and the commentaries on classics of setting is 203 convenient to use person and rotates threaded rod 201, and the tight piece 202 that supports that sets up can contact and press from both sides tightly with the circuit breaker.
Locking mechanism includes rectangular channel 301, rectangular channel 301 sets up in the one side that guide rail 3 kept away from spout 300, sliding connection has sliding plate 302 in rectangular channel 301, one side fixedly connected with pawl 303 of sliding plate 302, pawl 303 passes guide rail 3 and stretches into in the spout 300, pawl 303 and the 501 movable block of ratchet, sliding plate 302 opposite side fixedly connected with reset spring 305, one side fixedly connected with baffle 304 that spout 300 was kept away from to guide rail 3, locking mechanism easy operation is convenient, time saving and labor saving, user's demand is satisfied.
One end of the return spring 305 far away from the sliding plate 302 is fixedly connected to the baffle 304, the return spring 305 is in a compressed state, a handle 306 is fixedly connected to one side of the sliding plate 302 far away from the pawl 303, and the pawl 303 can be clamped with the ratchet 501 by the reaction force of the return spring 305.
The radial width of the circular hole 101 is greater than the radial width of the sleeve 6, one end of the tightening spring 602, which is far away from the slider 601, is fixedly connected to the inner cavity side wall of the sleeve 6, and the tightening spring 602 is in a compressed state.
The working principle is as follows: when the user uses, at first fix mainboard 1 on the circuit breaker, aim at the moving contact department of circuit breaker with round hole 101, the tight fixed establishment of specific use clamp for two sets of curb plates 2 are with the circuit breaker centre gripping, then rotate and change 203, change 203 and drive threaded rod 201 rotation in the screw of curb plate 2, threaded rod 201 drives the spiral of block 202 that supports and rotates and presss from both sides tightly fixedly with the lateral wall of circuit breaker.
At this moment, the directly inserted plug 4 enters between two sets of guide rails 3 to realize the connection of external test lines, and the connection is stable, the specific operation is as, make the cutting 5 insert in the spout 300, in the process of inserting, the ratchet 501 can block each other with the pawl 303, make the cutting 5 can only insert along the spout 300 inwards, can not take out, the plug 4 drives the sleeve 6 motion, the sleeve 6 drives the contact main body 603 motion and offsets with the moving contact, pressure between contact main body 603 and the moving contact can drive the slider 601 to slide in the inner chamber of sleeve 6 and compress and abut against the spring 602, the reaction force that abuts against the spring 602 can have a thrust to the slider 601 to make the contact main body 603 abut against and laminate with the moving contact, prevent that it can not form effective contact.
When the plug block 4 needs to be detached, the handle 306 can be pulled, the handle 306 drives the sliding plate 302 to slide in the rectangular groove 301 and compress the return spring 305, the sliding plate 302 further drives the pawl 303 to move and break away from the clamping with the ratchet 501, and the plug block 4 can be directly pulled out at the moment, so that the operation is simple and convenient, and time and labor are saved.
This device is through setting up mainboard 1, press from both sides tight fixed establishment, guide rail 3, inserted block 4, cutting 5, locking mechanism, sleeve 6 and contact main body 603, realized when measuring conductive loop resistance, carry out external mode and link to each other with the moving contact, use to press from both sides tight fixed establishment and fix on the circuit breaker mainboard 1, then when inserting inserted block 4, the guide rail 3 and the locking mechanism that set up have realized stable the inserting of inserted block 4 in guide rail 3, wire 401 and contact main body 603 can not drop when the test, and the reaction force of supporting tight spring 602 after the installation can have a thrust to make contact main body 603 support tightly and laminate with the moving contact to slider 601, make it form effective contact.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a return circuit resistance testing arrangement, includes mainboard (1) and inserted block (4), its characterized in that: the back of the main board (1) is provided with a clamping and fixing mechanism, the front of the main board (1) is fixedly connected with two groups of guide rails (3), one opposite side of each guide rail (3) is provided with a sliding groove (300), two sides of each insert block (4) are fixedly connected with an insert strip (5), one side of each insert strip (5) far away from each insert block (4) is provided with a ratchet (501), each insert strip (5) is movably inserted in each sliding groove (300), the guide rails (3) are provided with locking mechanisms corresponding to the insert strips (5), the front of each insert block (4) is provided with a lead (401), the back of each insert block (4) is fixedly connected with a sleeve (6), the inner cavity of each sleeve (6) is slidably connected with a sliding block (601), one side of each sliding block (601) is fixedly connected with a contact main body (603), and the other side of each sliding block (601) is fixedly, a round hole (101) is formed in the center of the front face of the main board (1), and the lead (401) penetrates through the insertion block (4) to enter an inner cavity of the sleeve (6) and is electrically connected with the sliding block (601) and the contact main body (603).
2. The loop resistance testing device of claim 1, wherein: the clamping and fixing mechanism comprises side plates (2), the number of the side plates (2) is two, the side plates are symmetrically and fixedly connected to the back of the main plate (1), and the side walls of the side plates (2) are provided with screw holes and threaded rods (201).
3. A loop resistance testing device according to claim 2, wherein: one end fixedly connected with of threaded rod (201) changes handle (203), the other end fixedly connected with of threaded rod (201) supports tight piece (202).
4. The loop resistance testing device of claim 1, wherein: locking mechanism includes rectangular channel (301), rectangular channel (301) are seted up in guide rail (3) and are kept away from one side of spout (300), sliding connection has sliding plate (302) in rectangular channel (301), one side fixedly connected with pawl (303) of sliding plate (302), pawl (303) pass guide rail (3) and stretch into in spout (300), pawl (303) and ratchet (501) activity block, sliding plate (302) opposite side fixedly connected with reset spring (305), one side fixedly connected with baffle (304) of spout (300) are kept away from in guide rail (3).
5. The loop resistance testing device of claim 4, wherein: one end of the return spring (305), which is far away from the sliding plate (302), is fixedly connected to the baffle plate (304), the return spring (305) is in a compressed state, and a handle (306) is fixedly connected to one side, which is far away from the pawl (303), of the sliding plate (302).
6. The loop resistance testing device of claim 1, wherein: the radial width of the round hole (101) is larger than that of the sleeve (6).
7. The loop resistance testing device of claim 1, wherein: one end, far away from the sliding block (601), of the abutting spring (602) is fixedly connected to the side wall of the inner cavity of the sleeve (6), and the abutting spring (602) is in a compressed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020867789.1U CN212410782U (en) | 2020-05-21 | 2020-05-21 | Loop resistance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020867789.1U CN212410782U (en) | 2020-05-21 | 2020-05-21 | Loop resistance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212410782U true CN212410782U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020867789.1U Active CN212410782U (en) | 2020-05-21 | 2020-05-21 | Loop resistance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212410782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508592A (en) * | 2022-11-16 | 2022-12-23 | 广东电网有限责任公司佛山供电局 | Circuit breaker plum blossom contact return circuit resistance binding clip |
-
2020
- 2020-05-21 CN CN202020867789.1U patent/CN212410782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508592A (en) * | 2022-11-16 | 2022-12-23 | 广东电网有限责任公司佛山供电局 | Circuit breaker plum blossom contact return circuit resistance binding clip |
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