A transformer clamp designed to prevent loosening

Abstract

This invention discloses an anti-loosening transformer clamp, which relates to the field of power fittings technology. The anti-loosening transformer clamp includes a lower support assembly and an upper clamping assembly. The lower support assembly includes a base plate and a mounting hole. A first spring is fixedly connected to the arc-shaped concave surface of the lower support assembly, and a second spring is fixedly connected to the arc-shaped concave surface of the lower support assembly near the first spring. Both the first and second springs have first grooves on their surfaces. The upper clamping assembly includes an arched clamping plate and an inner hexagonal sleeve. A third spring is fixedly connected to the side of the inner side of the arched clamping plate, and a fourth spring is fixedly connected to the inner side of the arched clamping plate near the third spring. Both the third and fourth springs have second grooves on their surfaces. This design achieves the purpose of preventing loosening, providing multi-directional contact with the conductor, clamping and fixing it, and self-locking, reducing the influence of external factors and making it less prone to loosening.

Description

Technical Field

[0001] This invention relates to the field of power fittings technology, and in particular to a transformer clamp designed to prevent loosening. Background Technology

[0002] With the rapid development of the power industry, the application of transformers is becoming increasingly common. Transformer clamps are typically used to connect conductors to transformers. Transformer clamps are a core category of power fittings; they are crucial components connecting transformer output terminals to busbars or cables, serving both electrical conduction and mechanical fixation functions, directly impacting power supply reliability.

[0003] For example, the transformer clamp described in Chinese Patent Publication No. CN215527967U includes a snap-fit ​​body and a connecting body. One end of the snap-fit ​​body is fixedly connected to one end of the connecting body, and the other end of the connecting body is bolted to a fixing body. The snap-fit ​​body includes a first support member and a second support member, which are bolted together. A U-shaped groove is provided at the connection end between the connecting body and the fixing body. Through holes are opened on both sides of the U-shaped groove, and a fixing rod is slidably connected between the two through holes. A limit block is provided at the end of the U-shaped groove flush with the top surface of the first support member. A rotating member is provided at the connection end between the fixing body and the connecting body. A fixing hole matching the size of the through hole is opened at the front end of the rotating member. The rotating member rotates along the fixing rod, adjusting the angle between the fixing body and the snap-fit ​​body. The number of snap-fit ​​blocks is the same as the number of fixing holes. The number and shape of the snap-fit ​​blocks and fixing holes can be designed in various styles as needed, such as circular snap-fit ​​blocks and circular fixing holes, rectangular snap-fit ​​blocks and rectangular fixing holes, etc., ensuring a consistent quantity for both aesthetic appeal and stronger fixation of the two support members.

[0004] In existing technical references, wires can be fixed by a fixing body and a snap-fit ​​body. However, with this design, the wires may shake and loosen when exposed to wind and rain, resulting in an unstable fixation. The wires may fall off under frequent vibrations, affecting the normal operation of the power equipment. Summary of the Invention

[0005] To solve the above technical problems, the present invention is implemented through the following technical solution:

[0006] A transformer clamp designed to prevent loosening, comprising:

[0007] The lower support assembly includes a base plate and a mounting hole. The base plate is fixedly mounted on the transformer terminal block through the mounting hole. The base plate is installed below the upper clamping assembly. The mounting hole is opened on the surface of the base plate near the terminal block. A limit hole is opened on the side of the surface of the base plate. A first spring is fixedly connected to the arc-shaped concave surface of the lower support assembly. A second spring is fixedly connected to the arc-shaped concave surface of the lower support assembly near the first spring. A first strip groove is opened on the surface of the first spring and the surface of the second spring. A first V-shaped opening is opened at the arc-shaped top of the first spring and the arc-shaped top of the second spring. The end of the wire is embedded into the arc-shaped concave surface of the inner side of the base plate. Under pressure, the first strip groove on the surface of the first spring and the second spring contacts the wire, which can increase the friction and prevent the wire from coming off.

[0008] The upper clamping assembly includes an arched clamping plate and an inner hexagonal sleeve. The arched clamping plate is mounted directly above the base plate. The inner hexagonal sleeve is fixedly connected to the connecting lug on the surface of the arched clamping plate. A third spring is fixedly connected to the side of the inner side of the arched clamping plate. A fourth spring is fixedly connected to the inner side of the arched clamping plate near the third spring. A second groove is formed on the surface of both the third and fourth springs. The arc at the bottom of the third spring and the bottom of the fourth spring are also connected. A second V-shaped opening is provided at each arc. An arched clamping plate is used to clamp the end of the wire, and the arched clamping plate is directly above the substrate. A flexible pad is installed between the arched clamping plate and the substrate. The end of the wire is embedded into the cavity formed by the arc concave surface of the inner side of the substrate and the arc concave surface of the inner side of the arched clamping plate. Under pressure, the second strip groove on the surface of the third and fourth spring sheets contacts the wire, which increases the friction on the upper and lower surfaces of the wire end, which helps to effectively fix the wire.

[0009] Locking bolts are installed between the side of the substrate and the side of the arched clamping plate, a flexible pad is installed between the top of the substrate and the bottom of the arched clamping plate, and a self-locking assembly is installed at the bottom of the substrate.

[0010] Furthermore, the substrate and the arched clamping plate are detachably fixed together by locking bolts, and the flexible pad is made of rubber.

[0011] Furthermore, there are two limiting holes, and the two limiting holes are symmetrically installed along the central axis of the substrate. The first V-shaped opening is evenly distributed at the arc of the top of the first spring piece and the arc of the top of the second spring piece.

[0012] Furthermore, the first strip groove is inclined and is evenly distributed on the surface of the first spring and the surface of the second spring.

[0013] Furthermore, the first and second springs are installed at the same height, and the first and second springs are tilted in opposite directions.

[0014] Furthermore, the second strip groove is opened at an angle, and the second strip groove is evenly distributed on the surface of the third spring and the surface of the fourth spring.

[0015] Furthermore, the third and fourth springs are both installed at an angle, and the third and fourth springs are installed at the same height. The second V-shaped openings are evenly distributed at the arc at the bottom end of the third spring and the arc at the bottom end of the fourth spring.

[0016] The base plate is fixed to the arched clamping plate by locking bolts, so that the base plate and the arched clamping plate squeeze the end of the wire. At the same time, the first, second, third and fourth springs undergo elastic deformation after being squeezed, and the springs extend in different directions to apply elastic pressure to the end of the wire. The first V-shaped opening and the second V-shaped opening can make the ends of the first, second, third and fourth springs serrated, piercing the end of the wire, increasing the contact area and preventing loosening.

[0017] Furthermore, the third spring is installed directly above the first spring, and the fourth spring is installed directly above the second spring.

[0018] Furthermore, the self-locking assembly includes a fastener, which is installed at the limiting hole position on the surface of the substrate. A U-shaped base plate is fixedly connected to the bottom end of the fastener. A polygonal notch is opened at the end of the U-shaped base plate away from the fastener. A polygonal straight hole is opened on the surface of the U-shaped base plate near the polygonal notch. A slot is opened at the corner of the inner side of the polygonal notch and the corner of the inner side of the polygonal straight hole. The threaded rod of the fastener is passed through the center of the limiting hole, and the U-shaped base plate is moved upward as a whole, so that the bottom of the locking bolt passes through the inner side of the polygonal notch and the inner side of the polygonal straight hole and is locked by a nut. The surface of the hexagonal nut at the bottom of the locking bolt fits against the inner side of the polygonal notch and the inner side of the polygonal straight hole, and the corner of the hexagonal nut at the bottom of the locking bolt is embedded in the slot, so that the hexagonal nut at the bottom of the locking bolt can be self-locked to prevent the threads from coming loose.

[0019] Furthermore, the bottom of the locking bolt passes through the inside of the polygonal notch and the inside of the polygonal straight hole, and the threaded rod of the fastener passes through the center of the limiting hole.

[0020] The beneficial effects of the technical solution provided by this invention include:

[0021] 1. By embedding the end of the wire into the concave arc surface of the inner side of the substrate, and under pressure, the first groove on the surface of the first and second spring sheets comes into contact with the wire, which can increase the friction and prevent the wire from coming off.

[0022] Second, the arched clamping plate is used to clamp the end of the wire, and under pressure, the second groove on the surface of the third and fourth spring pieces comes into contact with the wire, which increases the friction on the upper and lower surfaces of the wire end, which helps to effectively fix the wire.

[0023] 3. The base plate and the arched clamping plate are fixed by locking bolts, so that the base plate and the arched clamping plate squeeze the end of the wire. At the same time, the first, second, third and fourth springs undergo elastic deformation after being squeezed, and the springs extend in different directions to apply elastic pressure to the end of the wire. The first V-shaped opening and the second V-shaped opening can make the ends of the first, second, third and fourth springs serrated, piercing the end of the wire, increasing the contact area and preventing loosening.

[0024] 4. Pass the threaded rod of the fastener through the center of the limiting hole, and move the U-shaped base plate upward as a whole, so that the bottom of the locking bolt passes through the inner side of the polygonal notch and the inner side of the polygonal straight hole, and is locked by the nut. The surface of the hexagonal nut at the bottom of the locking bolt is in contact with the inner side of the polygonal notch and the inner side of the polygonal straight hole, and the corner of the hexagonal nut at the bottom of the locking bolt is embedded in the slot, so that the hexagonal nut at the bottom of the locking bolt can be self-locked to avoid the thread from coming loose. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of an anti-loosening transformer clamp provided in an embodiment of the present invention;

[0026] Figure 2 A bottom view of the anti-loosening transformer clamp structure provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the disassembled structure of the substrate and the upper clamping assembly provided in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the overall structure of the lower support component provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the disassembled structure of the upper clamping assembly and the substrate provided in an embodiment of the present invention;

[0030] Figure 6 This is a bottom view of the upper clamping assembly provided in an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the connection structure between the self-locking component and the substrate provided in an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the overall structure of the self-locking component provided in an embodiment of the present invention.

[0033] In the diagram: 1. Lower support assembly; 2. Upper clamping assembly; 3. Locking bolt; 4. Flexible pad; 5. Self-locking assembly; 101. Base plate; 102. Mounting round hole; 103. Limiting hole; 104. First spring; 105. Second spring; 106. First strip groove; 107. First V-shaped opening; 201. Arched clamping plate; 202. Inner hexagonal sleeve; 203. Third spring; 204. Fourth spring; 205. Second strip groove; 206. Second V-shaped opening; 501. Connecting fastener; 502. U-shaped base plate; 503. Polygonal notch; 504. Polygonal straight hole; 505. Slot. Detailed Implementation

[0034] Example 1, see Figures 1-4 A technical solution is provided:

[0035] A transformer clamp designed to prevent loosening, comprising:

[0036] The lower support assembly 1 and the upper clamping assembly 2 are configured. The lower support assembly 1 includes a base plate 101 and a mounting hole 102. The base plate 101 is fixedly mounted on the transformer terminal block through the mounting hole 102. The base plate 101 is mounted below the upper clamping assembly 2. The mounting hole 102 is formed on the surface of the base plate 101 and near the terminal block. A limit hole 103 is formed on the side of the surface of the base plate 101. A first spring piece 104 is fixedly connected to the arc-shaped concave surface of the lower support assembly 1. A second spring 105 is fixedly connected to a spring 104. A first strip groove 106 is formed on the surface of the first spring 104 and the surface of the second spring 105. A first V-shaped opening 107 is formed at the arc at the top of the first spring 104 and the arc at the top of the second spring 105. The end of the wire is embedded into the arc concave surface of the inner side of the substrate 101. Under pressure, the first strip groove 106 on the surface of the first spring 104 and the second spring 105 comes into contact with the wire, which can increase the friction and prevent the wire from coming off.

[0037] A locking bolt 3 is installed between the side of the substrate 101 and the side of the arched clamping plate 201. A flexible pad 4 is installed between the top of the substrate 101 and the bottom of the arched clamping plate 201. The substrate 101 and the arched clamping plate 201 are detachably fixed together by the locking bolt 3. The flexible pad 4 is made of rubber.

[0038] There are two limiting holes 103, and the two limiting holes 103 are symmetrically installed along the central axis of the substrate 101. The first V-shaped opening 107 is evenly distributed at the arc at the top of the first spring piece 104 and the arc at the top of the second spring piece 105.

[0039] The first strip groove 106 is opened at an angle and is evenly distributed on the surface of the first spring 104 and the surface of the second spring 105.

[0040] The first spring 104 and the second spring 105 are installed at the same height, and the first spring 104 and the second spring 105 are tilted in opposite directions.

[0041] Example 2, based on Example 1, see [link / reference] Figures 1 to 6 A technical solution is provided:

[0042] The upper clamping assembly 2 includes an arched clamping plate 201 and an inner hexagonal sleeve 202. The arched clamping plate 201 is installed directly above the base plate 101. The inner hexagonal sleeve 202 is fixedly connected to the connecting lug on the surface of the arched clamping plate 201. A third spring piece 203 is fixedly connected to the side of the inner side of the arched clamping plate 201. A fourth spring piece 204 is fixedly connected to the inner side of the arched clamping plate 201 near the third spring piece 203. A second strip groove 205 is formed on the surface of both the third spring piece 203 and the fourth spring piece 204. The arc at the bottom end of the third spring piece 203 and the bottom end of the fourth spring piece 204 are also provided with the groove. A second V-shaped opening 206 is provided at each arc. An arched clamping plate 201 is used to clamp the end of the wire. The arched clamping plate 201 is directly above the substrate 101. A flexible pad 4 is installed between the arched clamping plate 201 and the substrate 101. The end of the wire is embedded in the cavity formed by the arc concave surface of the inner side of the substrate 101 and the arc concave surface of the inner side of the arched clamping plate 201. Under pressure, the second strip groove 205 on the surface of the third spring 203 and the fourth spring 204 contacts the wire, which increases the friction on the upper and lower surfaces of the end of the wire and helps to effectively fix the wire.

[0043] The second strip groove 205 is inclined and evenly distributed on the surface of the third spring piece 203 and the fourth spring piece 204. The base plate 101 and the arched clamping plate 201 are fixed by the locking bolt 3, so that the base plate 101 and the arched clamping plate 201 squeeze the end of the wire. At the same time, the first spring piece 104, the second spring piece 105, the third spring piece 203 and the fourth spring piece 204 undergo elastic deformation after being squeezed, and the spring pieces extend in different directions on both sides, applying elastic pressure to the end of the wire. The first V-shaped opening 107 and the second V-shaped opening 206 can make the ends of the first spring piece 104, the second spring piece 105, the third spring piece 203 and the fourth spring piece 204 form a serrated shape, piercing the end of the wire, increasing the contact area and preventing loosening.

[0044] The third spring 203 and the fourth spring 204 are both installed at an angle, and the third spring 203 and the fourth spring 204 are installed at the same height. The second V-shaped opening 206 is evenly distributed at the arc at the bottom of the third spring 203 and the arc at the bottom of the fourth spring 204.

[0045] The third spring 203 is installed directly above the first spring 104, and the fourth spring 204 is installed directly above the second spring 105.

[0046] Example 3, based on Examples 1 and 2, see below. Figures 1 to 8 A technical solution is provided:

[0047] The self-locking assembly 5 includes a fastener 501, which is installed at the limiting hole 103 on the surface of the base plate 101. A U-shaped base plate 502 is fixedly connected to the bottom end of the fastener 501. A polygonal notch 503 is provided at the end of the U-shaped base plate 502 away from the fastener 501. A polygonal straight hole 504 is provided on the surface of the U-shaped base plate 502 near the polygonal notch 503. A slot 505 is provided at the corner of the inner side of the polygonal notch 503 and the corner of the inner side of the polygonal straight hole 504 to hold the fastener 501 in place. The threaded rod of 01 passes through the center of the limiting hole 103 and moves the U-shaped base plate 502 upward as a whole, so that the bottom of the locking bolt 3 passes through the inner side of the polygonal notch 503 and the inner side of the polygonal straight hole 504, and is locked by the nut. The surface of the hexagonal nut at the bottom of the locking bolt 3 fits against the inner side of the polygonal notch 503 and the inner side of the polygonal straight hole 504, and the corner of the hexagonal nut at the bottom of the locking bolt 3 is embedded in the slot 505, so that the hexagonal nut at the bottom of the locking bolt 3 can be self-locked to avoid the thread from coming loose.

[0048] The bottom of the locking bolt 3 passes through the inside of the polygonal notch 503 and the inside of the polygonal straight hole 504, and the threaded rod of the fastener 501 passes through the center of the limiting hole 103.

[0049] In use, first insert the end of the wire into the arc concave surface of the inner side of the substrate 101, then place the flexible pad 4 on the top of the substrate 101, and cover the top of the end of the wire with the arched clamping plate 201, with the arched clamping plate 201 directly above the substrate 101.

[0050] The wire end is embedded into the cavity formed by the arc concave surface of the inner side of the substrate 101 and the arc concave surface of the inner side of the arched clamping plate 201, and the threaded rod of the locking bolt 3 passes through the center of the inner hexagonal sleeve 202, and the end of the locking bolt 3 is embedded in the interior of the inner hexagonal sleeve 202, and the arched clamping plate 201 and the substrate 101 are fixed by the locking bolt 3.

[0051] Furthermore, under pressure, the first groove 106 on the surface of the first spring 104 and the second spring 105 comes into contact with the wire, which can increase the friction.

[0052] At the same time, under pressure, the second groove 205 on the surface of the third spring 203 and the fourth spring 204 comes into contact with the wire, which increases the friction on the upper and lower surfaces of the wire end.

[0053] Furthermore, the substrate 101 and the arched clamping plate 201 squeeze the end of the wire. At the same time, the first spring sheet 104, the second spring sheet 105, the third spring sheet 203 and the fourth spring sheet 204 undergo elastic deformation after being squeezed, and the spring sheets extend in different directions on both sides to apply elastic pressure to the end of the wire. The first V-shaped opening 107 and the second V-shaped opening 206 can make the ends of the first spring sheet 104, the second spring sheet 105, the third spring sheet 203 and the fourth spring sheet 204 form a serrated shape to pierce the end of the wire, increase the contact area, and prevent loosening.

[0054] Furthermore, the threaded rod of the fastener 501 passes through the center of the limiting hole 103, and the U-shaped base plate 502 is moved upward as a whole, so that the bottom of the locking bolt 3 passes through the inner side of the polygonal notch 503 and the inner side of the polygonal straight hole 504, and is locked by the nut. The surface of the hexagonal nut at the bottom of the locking bolt 3 fits against the inner side of the polygonal notch 503 and the inner side of the polygonal straight hole 504, and the corner of the hexagonal nut at the bottom of the locking bolt 3 is embedded in the slot 505, so that the hexagonal nut at the bottom of the locking bolt 3 can be self-locked, avoiding the situation of thread stripping.

[0055] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A transformer clamp designed to prevent loosening, characterized in that, include: The lower support assembly (1) and the upper clamping assembly (2) are provided. The lower support assembly (1) includes a base plate (101) and a mounting hole (102). The base plate (101) is installed below the upper clamping assembly (2). The mounting hole (102) is opened on the surface of the base plate (101) and near the end of the connection. A limit hole (103) is opened on the side of the surface of the base plate (101). A first spring piece (104) is fixedly connected to the arc-shaped concave surface of the lower support assembly (1). A second spring piece (105) is fixedly connected to the arc-shaped concave surface of the lower support assembly (1) and near the first spring piece (104). A first strip groove (106) is opened on the surface of the first spring piece (104) and the surface of the second spring piece (105). A first V-shaped opening (107) is opened at the arc at the top of the first spring piece (104) and the arc at the top of the second spring piece (105). The upper clamping assembly (2) includes an arched clamping plate (201) and an inner hexagonal sleeve (202). The arched clamping plate (201) is installed directly above the base plate (101). The inner hexagonal sleeve (202) is fixedly connected to the connecting ear on the surface of the arched clamping plate (201). A third spring piece (203) is fixedly connected to the side of the inner side of the arched clamping plate (201). A fourth spring piece (204) is fixedly connected to the inner side of the arched clamping plate (201) and near the third spring piece (203). A second strip groove (205) is provided on the surface of the third spring piece (203) and the surface of the fourth spring piece (204). A second V-shaped opening (206) is provided at the arc at the bottom end of the third spring piece (203) and the arc at the bottom end of the fourth spring piece (204). A locking bolt (3) is installed between the side of the substrate (101) and the side of the arched clamping plate (201), a flexible pad (4) is installed between the top of the substrate (101) and the bottom of the arched clamping plate (201), and a self-locking assembly (5) is installed at the bottom of the substrate (101).

2. The anti-loosening transformer clamp according to claim 1, characterized in that: The substrate (101) and the arched clamping plate (201) are detachably fixed together by locking bolts (3), and the flexible pad (4) is made of rubber.

3. The anti-loosening transformer clamp according to claim 1, characterized in that: There are two limiting holes (103), and the two limiting holes (103) are symmetrically installed along the central axis of the substrate (101). The first V-shaped opening (107) is evenly distributed at the arc at the top of the first spring (104) and the arc at the top of the second spring (105).

4. The anti-loosening transformer clamp according to claim 1, characterized in that: The first strip groove (106) is opened at an angle, and the first strip groove (106) is evenly distributed on the surface of the first spring (104) and the surface of the second spring (105).

5. The anti-loosening transformer clamp according to claim 1, characterized in that: The first spring (104) and the second spring (105) are installed at the same height, and the first spring (104) and the second spring (105) are tilted in opposite directions.

6. The anti-loosening transformer clamp according to claim 1, characterized in that: The second strip groove (205) is opened at an angle and is evenly distributed on the surface of the third spring (203) and the surface of the fourth spring (204).

7. The anti-loosening transformer clamp according to claim 1, characterized in that: The third spring (203) and the fourth spring (204) are both installed at an angle. The third spring (203) and the fourth spring (204) are installed at the same height. The second V-shaped opening (206) is evenly distributed at the arc at the bottom of the third spring (203) and the arc at the bottom of the fourth spring (204).

8. The anti-loosening transformer clamp according to claim 1, characterized in that: The third spring (203) is installed directly above the first spring (104), and the fourth spring (204) is installed directly above the second spring (105).

9. The anti-loosening transformer clamp according to claim 1, characterized in that: The self-locking component (5) includes a fastener (501), which is installed at the limiting hole (103) on the surface of the base plate (101). A U-shaped base plate (502) is fixedly connected to the bottom end of the fastener (501). A polygonal notch (503) is provided at the end of the U-shaped base plate (502) away from the fastener (501). A polygonal straight hole (504) is provided on the surface of the U-shaped base plate (502) near the polygonal notch (503). A slot (505) is provided at the corner of the inner side of the polygonal notch (503) and the corner of the inner side of the polygonal straight hole (504).

10. A transformer clamp for preventing loosening according to claim 9, characterized in that: The bottom of the locking bolt (3) passes through the inside of the polygonal notch (503) and the inside of the polygonal straight hole (504), and the threaded rod of the fastener (501) passes through the center of the limiting hole (103).

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