Quick-release type generator DC withstand voltage test wiring device

Abstract

This utility model discloses a quick-release generator DC withstand voltage test wiring device, including a terminal block, a wiring sleeve fixed at the front end of the terminal block and fitted onto the generator terminal block, an insulating operating handle installed at the rear end of the terminal block, and two elastic locking mechanisms disposed inside the wiring sleeve, including a movable groove formed in the inner wall of the wiring sleeve, a return spring and elastic claws installed in the movable groove, and a clamping mechanism disposed inside the wiring sleeve. The quick-release generator DC withstand voltage test wiring device proposed in this application, by designing a symmetrical elastic locking mechanism inside the connecting sleeve, utilizes the elastic claws to form a progressive engagement with the external thread of the generator terminal block, and cooperates with the clamping mechanism inside the sleeve, the wiring operation can be completed with one hand, ensuring connection efficiency and connection stability, and the elastic claws can be adapted to multiple specifications of generator terminal blocks, making it highly flexible in use.

Description

Technical Field

[0001] This utility model belongs to the field of DC withstand voltage test technology for thermoelectric generator sets, and specifically relates to a quick-release generator DC withstand voltage test wiring device. Background Technology

[0002] In the DC withstand voltage test of generator sets in the thermoelectric field, the reliability and operational efficiency of the wiring device directly affect the accuracy of the test results and the safety of the test process. In the existing technology, the wiring method for generator DC withstand voltage testing mainly relies on traditional bolt fastening or spiral connection, which has the following significant drawbacks: Low connection efficiency: Traditional wiring methods require the use of tools (such as wrenches and screwdrivers) to repeatedly tighten or loosen bolts, or to achieve electrical connections by winding wires. A single disassembly and assembly operation takes more than 8 minutes. Especially in batch testing scenarios, the cumulative time increases significantly, resulting in low overall testing efficiency, which is difficult to meet the needs of modern thermal power plants for efficient operation and maintenance.

[0003] Poor contact stability: The bolt tightening method relies on the torque applied manually. If the torque is insufficient, the contact surface may loosen, which directly affects the repeatability and reliability of the pressure test data.

[0004] Limited compatibility: The terminal sizes of different generator sets vary significantly, while the connectors of existing wiring devices are mostly of a single specification and cannot be compatible with multiple terminal sizes.

[0005] Therefore, this utility model proposes a quick-release generator DC withstand voltage test wiring device. Utility Model Content

[0006] The purpose of this invention is to provide a quick-release generator DC withstand voltage test wiring device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-release generator DC withstand voltage test wiring device, comprising... Terminal block, terminal sleeve fixed to the front end of the terminal block and fitted onto the generator terminal block, and insulated operating handle installed at the rear end of the terminal block; And two elastic locking mechanisms are provided inside the wiring sleeve, including a movable groove opened in the inner wall of the wiring sleeve, a return spring and elastic claw installed in the movable groove, a connecting rod fixed to one end of the elastic claw, and the end of the connecting rod movably extends to the outside of the wiring sleeve and is fixed with an outer plate. The other end of the elastic claw is locked in the external thread on the surface of the generator terminal. And a clamping mechanism provided inside the terminal sleeve, including an inner groove inside the rear end of the terminal sleeve, a clamping spring and a clamping seat installed in the inner groove, a clamping post fixed to the front surface of the clamping seat and whose end extends movably through to the inside of the terminal sleeve, and a clamping conductive block fixed to the front end of the clamping post and in close contact with the end of the generator terminal.

[0008] Preferably, a limit ring is also fixed to the surface of the connecting rod relative to the outer side of the wiring sleeve.

[0009] Preferably, one end of the return spring abuts against the inner wall of the movable groove, and the other end of the return spring abuts against the elastic claw.

[0010] Preferably, it also includes an insulated push structure, which includes a push ring slidably sleeved on the surface of the insulated operating handle and two push rods fixed on the front surface of the push ring. The front ends of the two push rods extend to the surface of the wiring sleeve and are fixed with right-angled trapezoidal push blocks corresponding to the outer plate.

[0011] Preferably, the front end of the right-angled trapezoidal push block extends between the outer plate and the wiring sleeve.

[0012] Preferably, the surface of the insulating operating handle is symmetrically fixed with two limiting rings, and the push ring is located between the two limiting rings.

[0013] Preferably, the clamping seat, clamping post, and clamping conductive block are all made of conductive material.

[0014] Preferably, one side of the terminal block is provided with an integrated terminal ring, and the terminal ring is connected to a wiring wire.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The quick-release generator DC withstand voltage test wiring device proposed in this application, by designing a symmetrical elastic locking mechanism in the connecting sleeve, uses the elastic claws to form a progressive engagement with the external threads of the generator terminal, and cooperates with the clamping mechanism on the inner side of the sleeve, the wiring operation can be completed with one hand, ensuring connection efficiency and connection stability at the same time. Moreover, the elastic claws can be adapted to multiple specifications of generator terminal, making it highly flexible in use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This utility model Figure 1 A magnified view of a portion of region A in the middle; Figure 4 This utility model Figure 2 A magnified view of a portion of region B in the middle; In the diagram: 1. Terminal block; 11. Terminal ring; 12. Terminal wire; 2. Terminal sleeve; 3. Insulated operating handle; 31. Limit ring; 4. Generator terminal block; 41. Generator terminal; 411. External thread; 51. Outer plate; 52. Connecting rod; 53. Limit ring; 54. Movable groove; 55. Return spring; 56. Elastic claw; 61. Push ring; 62. Push rod; 63. Right-angled trapezoidal push block; 71. Inner groove; 72. Clamping spring; 73. Clamping seat; 74. Clamping post; 75. Clamping conductive block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example Please see Figures 1 to 4 This is an embodiment of the present utility model, which provides the following technical solution: a quick-release generator DC withstand voltage test wiring device, comprising... Terminal 1, terminal sleeve 2 fixed at the front end of terminal 1 and sleeved on generator terminal 41, and insulating operating handle 3 installed at the rear end of terminal 1. Terminal 1 and terminal sleeve 2 are both made of copper alloy, and insulating operating handle 3 is a silicone rubber insulating sleeve. Generator terminal 41 is installed on generator terminal block 4 for wiring. The device includes two elastic locking mechanisms located inside the wiring sleeve 2, including a movable groove 54 on the inner wall of the wiring sleeve 2, a return spring 55 and an elastic claw 56 installed in the movable groove 54, and a connecting rod 52 fixed to the inner end of the elastic claw 56. The end of the connecting rod 52 extends to the outer side of the wiring sleeve 2 and is fixed with an outer plate 51. The outer end of the elastic claw 56 is engaged in the external thread 411 on the surface of the generator terminal 41. The inner end of the elastic claw 56 is movably installed in the movable groove 54 through the return spring 55. When the operator puts the wiring sleeve 2 onto the surface of the generator terminal 41, the outer end of the elastic claw 56 will continuously and progressively engage with the external thread 411 on the surface of the generator terminal 41. At the same time, the movable nature of the elastic claw 56 can also adapt to generator terminals 41 of multiple specifications and sizes, making it highly flexible in use. The clamping mechanism is provided inside the wiring sleeve 2, including an inner groove 71 opened inside the rear end of the wiring sleeve 2, a clamping spring 72 and a clamping seat 73 installed in the inner groove 71, a clamping post 74 fixed to the front surface of the clamping seat 73 and whose end extends movably through to the inside of the wiring sleeve 2, and a clamping conductive block 75 fixed to the front end of the clamping post 74 and in close contact with the end of the generator terminal 41. The clamping seat 73 is movably installed in the inner groove 71 through the clamping spring 72. The clamping mechanism can apply a counter-pushing force to the wiring sleeve 2 at all times to ensure the stability of the elastic locking mechanism, and at the same time ensure that the clamping conductive block 75 and the generator terminal 41 are in stable close contact and conduct electricity.

[0019] In this embodiment, preferably, a limiting ring 53 is fixed to the surface of the connecting rod 52 relative to the outer side of the wiring sleeve 2. The design of the limiting ring 53 can prevent the elastic claw 56 from moving too inward when it rebounds. Without the limiting ring 53, after the wiring sleeve 2 is separated from the generator terminal 41, the elastic claw 56 will be directly pushed out of the movable groove 54 by the return spring 55. With the blocking of the limiting ring 53, this situation will be avoided, and the normal movement of the elastic claw 56 will not be affected.

[0020] In this embodiment, preferably, one end of the return spring 55 abuts against the inner wall of the movable groove 54, and the other end of the return spring 55 abuts against the elastic claw 56.

[0021] In this embodiment, preferably, an insulated push structure is also included. The insulated push structure includes a push ring 61 that is slidably sleeved on the surface of the insulated operating handle 3 and two push rods 62 fixed on the front surface of the push ring 61. The front ends of the two push rods 62 extend to the surface of the wiring sleeve 2 and are fixed with right-angled trapezoidal push blocks 63 corresponding to the outer plate 51. The push ring 61, push rods 62 and right-angled trapezoidal push blocks 63 are all made of polyethylene material and are used to achieve the lateral movement of the outer plate 51 by pushing the push ring 61 forward, thereby releasing the lock between the elastic claw 56 and the external thread 411 on the surface of the generator wiring terminal 41.

[0022] In this embodiment, preferably, the front end of the right-angled trapezoidal push block 63 extends between the outer plate 51 and the wiring sleeve 2.

[0023] In this embodiment, preferably, two limiting rings 31 are symmetrically fixed on the surface of the insulating operating handle 3, and the push ring 61 is located between the two limiting rings 31, which can limit the range of motion of the push ring 61 and prevent the push ring 61 from being displaced excessively.

[0024] In this embodiment, preferably, the clamping seat 73, the clamping post 74, and the clamping conductive block 75 are all made of copper alloy, so that the terminal block 1 and the generator terminal 41 can be electrically connected through the clamping seat 73, the clamping post 74, and the clamping conductive block 75.

[0025] In this embodiment, preferably, one side of the terminal block 1 is provided with an integrated terminal ring 11, and the terminal ring 11 is connected with a wiring wire 12 for power connection during testing.

[0026] In summary, when using this device, the operator only needs to hold the insulated operating handle 3 and slide the terminal sleeve 2 at the front end of the terminal 1 onto the generator terminal 41. During this process, the elastic claw 56 will be squeezed by the generator terminal 41 and pushed into the movable groove 54. Under the counter-push of the return spring 55, the elastic claw 56 can gradually engage with the external thread 411 on the surface of the generator terminal 41 until the abutting conductive block 75 is in tight contact with the generator terminal 41, thus completing the quick connection between the terminal 1 and the generator terminal 41. Then, the wiring wire 12 is connected to the external testing equipment to complete the quick wiring for the generator DC withstand voltage test. When the experiment is completed and the terminal 1 needs to be separated from the generator terminal 41, hold the insulated operating handle 3 and push the push ring 61 forward. This will cause the push rod 62 to move forward with the right-angled trapezoidal push block 63. Due to the right-angled trapezoidal design of the push block 63, its inclined surface will press against the inner side of the outer plate 51 when it moves forward. As the push block 63 moves forward, it will press the outer plate 51 to one side, causing the outer plate 51, along with the connecting rod 52 and the elastic claw 56, to move. This will cause the elastic claw 56 to stop engaging with the external thread 411, thus releasing the lock. At this point, the terminal sleeve 2 can be directly removed from the generator terminal 41, making the operation highly convenient.

[0027] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release generator DC withstand voltage test wiring device, characterized in that: include Terminal (1), terminal sleeve (2) fixed at the front end of terminal (1) and sleeved on generator terminal (41), and insulating operating handle (3) installed at the rear end of terminal (1). And two elastic locking mechanisms are provided inside the wiring sleeve (2), including a movable groove (54) opened in the inner wall of the wiring sleeve (2), a return spring (55) and an elastic claw (56) installed in the movable groove (54), a connecting rod (52) fixed at one end of the elastic claw (56), and the end of the connecting rod (52) movably passes through to the outside of the wiring sleeve (2) and is fixed with an outer plate (51), and the other end of the elastic claw (56) is locked in the external thread (411) on the surface of the generator terminal (41); And a clamping mechanism provided inside the wiring sleeve (2), including an inner groove (71) opened inside the rear end of the wiring sleeve (2), a clamping spring (72) and a clamping seat (73) installed in the inner groove (71), a clamping post (74) fixed on the front surface of the clamping seat (73) and whose end extends through to the inside of the wiring sleeve (2), and a clamping conductive block (75) fixed on the front end of the clamping post (74) and in close contact with the end of the generator terminal (41).

2. The quick-release generator DC withstand voltage test wiring device according to claim 1, characterized in that: A limit ring (53) is also fixed to the surface of the connecting rod (52) relative to the outside of the wiring sleeve (2).

3. The quick-release generator DC withstand voltage test wiring device according to claim 1, characterized in that: One end of the reset spring (55) abuts against the inner wall of the movable groove (54), and the other end of the reset spring (55) abuts against the elastic claw (56).

4. The quick-release generator DC withstand voltage test wiring device according to claim 1, characterized in that: It also includes an insulated push structure, which includes a push ring (61) that is slidably sleeved on the surface of the insulated operating handle (3) and two push rods (62) fixed on the front surface of the push ring (61). The front ends of the two push rods (62) extend to the surface of the wiring sleeve (2) and are fixed with right-angled trapezoidal push blocks (63) corresponding to the outer plate (51).

5. The quick-release generator DC withstand voltage test wiring device according to claim 4, characterized in that: The front end of the right-angled trapezoidal push block (63) extends between the outer plate (51) and the wiring sleeve (2).

6. The quick-release generator DC withstand voltage test wiring device according to claim 4, characterized in that: The surface of the insulating operating handle (3) is symmetrically fixed with two limiting rings (31), and the push ring (61) is located between the two limiting rings (31).

7. The quick-release generator DC withstand voltage test wiring device according to claim 1, characterized in that: The clamping seat (73), clamping post (74), and clamping conductive block (75) are all made of conductive material.

8. The quick-release generator DC withstand voltage test wiring device according to claim 1, characterized in that: One side of the terminal block (1) is provided with an integrated terminal ring (11), and a terminal wire (12) is connected to the terminal ring (11).

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