Insulated wire clamp assembly

Abstract

The utility model provides an insulation wire clamp assembly, comprising a wire clamp body and a terminal channel arranged at the wire clamp body, the side wall of the terminal channel is provided with a first opening, the terminal channel is internally provided with a screw sleeve, the side wall of the screw sleeve is provided with a second opening, and the second opening is provided with a second opening. One of the first opening and the second opening is provided with an abutting portion used for abutting against the terminal channel to prevent the thread sleeve from rotating in the circumferential direction, the other of the first opening and the second opening is provided with an abutting face used for abutting against the abutting portion, the side portion of the wire clamp body is provided with a fastening groove used for closing the first opening, and a fastening nail penetrates through the fastening groove. The wire clamp assembly can overcome the defects that in the prior art, a limiting structure is not arranged in a threaded sleeve, the threaded sleeve is easy to rotate in a terminal channel in the installation process, so that an opening structure cannot correspond to an open groove, and a locking hole cannot be locked.

Description

Technical Field

[0001] This utility model relates to the field of wire clamp technology, and specifically to an insulated wire clamp assembly. Background Technology

[0002] Transformers are key equipment in power distribution systems, and cable clamps are used to connect transformers and cables, playing a crucial role in the safe operation of power transmission and distribution systems. In the prior art, patent CN206864291U discloses a transformer cable clamp, which includes a transformer connection part and a threaded sleeve disposed within the transformer connection part. The transformer connection part has a slot and a terminal channel for placing the threaded sleeve, while the threaded sleeve has an opening structure. The interior of the threaded sleeve can accommodate terminals of different sizes. During connection, the opening structure on the threaded sleeve must correspond to the slot, and finally, the locking hole on the side wall is tightened. However, because the threaded sleeve lacks a limiting structure, it easily rotates within the terminal channel during installation, causing the opening structure to misalign with the slot, resulting in the locking hole failing to lock. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defect that the existing screw sleeve has no limiting structure inside, and it is easy to rotate in the terminal channel during the installation process, so that the opening structure and the slot cannot correspond, resulting in the locking hole not being able to lock. Thus, an insulating wire clamp assembly that prevents the screw sleeve from rotating is provided.

[0004] Therefore, this utility model provides an insulating wire clamp assembly, including a wire clamp body and a terminal channel disposed on the wire clamp body. The terminal channel has a first opening on its side wall, a threaded sleeve is disposed in the terminal channel, and a second opening is disposed on the side wall of the threaded sleeve. One of the first opening and the second opening is provided with an abutment portion for abutting against the terminal channel to prevent the threaded sleeve from rotating circumferentially, and the other is provided with an abutment surface for abutting against the abutment portion. The side of the wire clamp body is provided with a fastening groove for closing the first opening, and a fastening pin is inserted into the fastening groove.

[0005] Furthermore: the threaded sleeve is provided with retaining rings on both sides, and the outer side of the threaded sleeve is provided with a retaining groove that matches the retaining ring.

[0006] Furthermore: the clamp body is provided with a through hole for the wire to pass through, and at least one positioning member is vertically provided above the clamp body. The positioning member can enter the through hole and abut against the wire. A rotating block is provided above the positioning member, and a connecting pad that abuts against the wire is provided below the positioning member.

[0007] Furthermore: the rotating block includes a shearing bolt block and a rotating bolt block, and a rubber ring is provided between the shearing bolt block and the rotating bolt block.

[0008] Furthermore, it also includes an insulating sleeve fitted outside the clamp body, the insulating sleeve having an extension ring for the wire to pass through and enter the through hole, the extension ring having a through hole, and the through hole having a plurality of parallel sealing rings that can abut against the side of the wire, the radius of the sealing rings gradually increasing from the side closer to the through hole to the side farther away from the through hole.

[0009] Furthermore: a protective cover is provided below the screw sleeve, the protective cover is provided with a trumpet-shaped opening, an annular extension end is provided on the outer side of the opening, and the insulating sleeve is provided with a clearance hole for the protective cover to pass through.

[0010] Furthermore, the insulating sleeve is provided with a cover plate for covering the screw sleeve and a cap for covering the positioning element.

[0011] Furthermore: the cover plate and the cap are integrally formed.

[0012] Furthermore: the insulating sleeve is provided with a cover that covers the outside of the fastening groove and the fastening nail, and the cover has a relief arc surface on both sides for fingers to grip, and the insulating sleeve also has an abutment extension that contacts the inner side of the cover.

[0013] Furthermore, an annular inclined surface is provided on the side of the perforation that contacts the extension ring, and the side of the extension ring near the perforation is tangent to the annular inclined surface.

[0014] The technical solution of this utility model has the following advantages:

[0015] 1. The present invention provides an insulating wire clamp assembly, wherein the screw sleeve is provided with a second opening, and abutment portions are provided on both sides of the second opening. Abutment surfaces are provided at the position of the first opening to abut the abutment portions. When the screw sleeve is installed into the terminal channel, the abutment portions abut against the abutment surfaces, thereby preventing the screw sleeve from rotating in the terminal channel, so that the first opening and the second opening can be aligned, which facilitates the subsequent tightening of the fastening screw. After installation, the fastening screw is passed through the two fastening grooves of the wire clamp body and tightened to reduce the gap between the first opening and the second opening, thereby tightening the screw sleeve into the terminal channel.

[0016] 2. The present invention provides an insulating wire clamp assembly in which retaining rings are provided on both sides of the screw sleeve. The retaining rings can effectively prevent the screw sleeve from coming out of the terminal channel. In order to effectively fix the position of the retaining rings, a retaining groove is provided on the outer side of the screw sleeve for the retaining rings to be inserted. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the wire clamp assembly;

[0019] Figure 2 This is a cross-sectional structural diagram of the wire clamp assembly;

[0020] Figure 3 This is a schematic diagram of the wire clamp body;

[0021] Figure 4 This is a schematic diagram of the overall structure of another embodiment of the wire clamp assembly;

[0022] Figure 5 This is a partial structural diagram of the area between the threaded sleeve and the clamp body.

[0023] Figure 6 This is a schematic diagram of the wire clamp body;

[0024] Figure 7 This is a schematic diagram of the connection structure between the threaded sleeve and the snap ring;

[0025] Figure 8 This is a diagram showing the positional relationship between the threaded sleeve and the clamp assembly.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Wire clamp body; 10. Fastening groove; 101. Fastening pin; 11. Through hole; 2. Terminal channel; 21. First opening; 3. Screw sleeve; 31. Second opening; 4. Abutting part; 41. Abutting surface; 5. Snap ring; 6. Snap groove; 7. Positioning component; 71. Rotating block; 711. Shear bolt block; 712. Rotating bolt block; 72. Connecting gasket; 73. Rubber ring; 8. Insulating sleeve; 81. Extension ring; 82. Through hole; 83. Sealing ring; 9. Protective cover; 90. Annular extension end; 91. Clearance hole; 92. Cover plate; 93. Sealing cap; 94. Sealing cover; 95. Clearance arc surface; 96. Abutting extension part; 97. Annular inclined surface. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Example

[0033] This embodiment provides an insulating wire clamp assembly, including a wire clamp body 1 and a terminal channel 2 disposed on the wire clamp body 1. The terminal channel 2 has a first opening 21 on its side wall, and a threaded sleeve 3 is disposed inside the terminal channel 2. The threaded sleeve 3 has a second opening 31 on its side wall. One of the first opening 21 and the second opening 31 is provided with an abutment portion 4 for abutting against the terminal channel 2 to prevent the threaded sleeve 3 from rotating circumferentially, and the other is provided with an abutment surface 41 for abutting against the abutment portion 4. The side of the wire clamp body 1 is provided with a fastening groove 10 for closing the first opening 21, and a fastening nail 101 is inserted into the fastening groove 10.

[0034] The specific improvements mentioned above are as follows: Figures 2-8As shown, compared to the prior art, the screw sleeve 3 is provided with a second opening 31, and abutment portions 4 are provided on both sides of the second opening 31. The first opening 21 is provided with an abutment surface 41 that abuts against the abutment portion 4. When the screw sleeve 3 is installed into the terminal channel 2, the abutment portion 4 will abut against the abutment surface 41, thereby preventing the screw sleeve 3 from rotating in the terminal channel 2, so that the first opening 21 and the second opening 31 can be aligned, which facilitates the subsequent screwing in of the fastening pin 101 for fastening (if the first opening 21 and the second opening 31 cannot be aligned, the side of the clamp body 1 cannot close the first opening 21 and the second opening 31 after passing through the fastening pin 101). After installation, the fastening pin 101 is passed through the two fastening grooves 10 of the clamp body 1 and the fastening pin 101 is tightened to reduce the gap between the first opening 21 and the second opening 31, thereby fastening the screw sleeve 3 into the terminal channel 2.

[0035] Based on the above embodiments: the threaded sleeve 3 is provided with retaining rings 5 ​​on both sides, and the outer side of the threaded sleeve 3 is provided with a retaining groove 6 that matches the retaining rings 5.

[0036] The specific improvements mentioned above are as follows: Figures 5-7 As shown, retaining rings 5 ​​are provided on both sides of the screw sleeve 3. The retaining rings 5 ​​can effectively prevent the screw sleeve 3 from coming out of the terminal channel 2. In order to effectively fix the position of the retaining rings 5, a retaining groove 6 is provided on the outer side of the screw sleeve 3 for the retaining rings 5 ​​to be inserted.

[0037] Based on the above embodiments: the clamp body 1 is provided with a through hole 11 for the wire to pass through, and at least one positioning member 7 is vertically provided above the clamp body 1. The positioning member 7 can enter the through hole 11 and abut against the wire. A rotating block 71 is provided above the positioning member 7, and a connecting pad 72 abutting against the wire is provided below it.

[0038] The specific improvements mentioned above are as follows: Figure 2 and Figure 3 As shown, the wire passes through the through hole 11. To further secure the wire, two positioning pieces 7 are provided on the top of the wire clamp body 1. The positioning piece 7 can be screwed in from top to bottom, and the lower end face of the connecting pad 72 can abut against the wire, thereby fixing the position of the wire. With the setting of the two positioning pieces 7, the position of the wire can be adjusted and fixed regardless of the number of wires passing through the through hole 11. A rotating block 71 is provided on the top of the positioning piece 7. With the setting of the rotating block 71, the positioning piece 7 can be easily rotated using an external tool.

[0039] Based on the above embodiments: the rotating block 71 includes a shearing bolt block 711 and a rotating bolt block 712, and a rubber ring 73 is provided between the shearing bolt block 711 and the rotating bolt block 712.

[0040] The specific improvements mentioned above are as follows: Figure 3 As shown, the rotating block 71 includes a shearing bolt block 711 and a rotating bolt block 712. When the positioning piece 7 is screwed into place, the shearing bolt block 711 is broken off, causing the rubber ring 73 to fall off. When it is necessary to unscrew the positioning piece 7, an external tool is inserted into the rotating bolt block 712, and then the rotating bolt block 712 is screwed outward.

[0041] Based on the above embodiments, it also includes an insulating sleeve 8 sleeved on the outside of the clamp body 1. The insulating sleeve 8 is provided with an extension ring 81 for the wire to pass through and enter the through hole 11. The extension ring 81 is provided with a through hole 82. The through hole 82 is provided with a plurality of parallel sealing rings 83 that can abut against the side of the wire. The radius of the sealing rings 83 gradually increases from the side closer to the through hole 11 to the side farther away from the through hole 11.

[0042] The specific improvements mentioned above are as follows: Figure 1 and Figure 2 As shown, an insulating sleeve 8 is also fitted on the outside of the clamp body 1. When the wire passes through the through hole 11, it needs to enter the through hole 11 through the through hole 82 and the extension ring 81. In order to further increase the sealing between the wire and the through hole 11, an extension ring 81 is provided on the outside of the insulating sleeve 8, and a sealing ring 83 with a different radius size is provided on the extension ring 81 to accommodate wires of different sizes. When the wire enters the through hole 11, the side wall of the wire will abut against the inner side wall of the sealing ring 83, thereby effectively improving the sealing between the two.

[0043] Based on the above embodiments: a protective cover 9 is provided below the screw sleeve 3, the protective cover 9 is provided with a trumpet-shaped opening, an annular extension end 90 is provided on the outer side of the opening, and the insulating sleeve 8 is provided with a clearance hole 91 for the protective cover 9 to pass through.

[0044] The specific improvements mentioned above are as follows: Figure 2 and Figure 3 As shown, the protective cover 9 needs to be fixed in the clearance hole 91. The protective cover 9 has a ring that can be directly inserted into the clearance hole 91 of the insulating cover to achieve the connection and fixation of the two. This connection method not only reduces the processing precision of the product, but also simplifies the connection method and improves production efficiency.

[0045] Based on the above embodiments: the insulating sleeve 8 is provided with a cover plate 92 for covering the screw sleeve 3 and a cap 93 for covering the positioning member 7.

[0046] Based on the above embodiments: the cover plate 92 and the cap 93 are integrally formed.

[0047] Example 1: As Figure 3As shown, during the installation process, the screw sleeve 3 is installed into the terminal channel 2, and then the wire is passed through the through hole 11. Next, the two positioning pieces 7 are screwed down in sequence so that the connecting gasket 72 abuts against the wire. Then, the cover plate 92 is placed on the screw sleeve 3 in sequence, and the sealing cap 93 is placed on the positioning piece 7. The cover plate 92 and the sealing cap 93 are set separately, thereby improving the sealing performance of the positioning piece 7 and the screw sleeve 3.

[0048] Example 2: As Figure 4 As shown, during the installation process, the screw sleeve 3 is installed into the terminal channel 2, and then the wire is passed through the through hole 11. Next, the two positioning pieces 7 are screwed down in sequence so that the connecting washer 72 abuts against the wire. The cover plate 92 and the sealing cap 93 are integrally set. The cover plate 92 and the sealing cap 93 are respectively placed on top of the screw sleeve 3 and the positioning piece 7, thereby improving the sealing performance of the positioning piece 7 and the screw sleeve 3 and preventing the cover plate 92 and the sealing cap 93 from loosening.

[0049] Based on the above embodiments: the insulating sleeve 8 is provided with a cover 94 covering the outside of the fastening groove 10 and the fastening nail 101, the cover 94 is provided with a relief arc surface 95 on both sides for fingers to grip, and the insulating sleeve 8 also has an abutment extension 96 that contacts the inner side of the cover 94.

[0050] The specific improvements mentioned above are as follows:

[0051] Example 1: As Figure 1 As shown, the insulating sleeve 8 is provided with a cover 94 covering the outside of the fastening groove 10 and the fastening nail 101. The cover 94 has a relief arc surface 95 on both sides for fingers to grip. The entire cover 94 is gourd-shaped, which increases the contact area between the cover 94 and the abutment extension 96, improves the sealing performance, and effectively prevents loosening.

[0052] Example 2: As Figure 4 As shown, the insulating sleeve 8 is provided with a cover 94 that covers the outside of the fastening groove 10 and the fastening nail 101. The cover 94 is rectangular in structure and effectively covers the fastening groove 10 and the fastening nail 101, thereby effectively improving the sealing performance.

[0053] Based on the above embodiments: an annular inclined surface 97 is provided on the side of the perforation 11 that contacts the extension ring 81, and the side of the extension ring 81 near the perforation 11 can be tangent to the annular inclined surface 97.

[0054] The specific improvement is as follows: when the wire passes through the through hole 11, the shear bolt block 711 and the rotating bolt block 712 are screwed down. During the screwing process, the extension ring 81 will deform. Through the setting of the guide slope on the through hole 11, the end of the extension ring 81 is embedded in the annular slope 97. Even if the extension ring 81 deforms, its end face can still abut against the annular slope 97, thereby playing a sealing role.

[0055] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An insulated wire clamp assembly, characterized in that: The device includes a clamp body (1) and a terminal channel (2) disposed on the clamp body (1). The terminal channel (2) has a first opening (21) on its side wall. A screw sleeve (3) is disposed in the terminal channel (2). The screw sleeve (3) has a second opening (31) on its side wall. One of the first opening (21) and the second opening (31) has an abutment part (4) for abutting against the terminal channel (2) to prevent the screw sleeve (3) from rotating circumferentially. The other has an abutment surface (41) for abutting against the abutment part (4). The clamp body (1) has a fastening groove (10) on its side for closing the first opening (21). A fastening pin (101) is inserted into the fastening groove (10).

2. An insulated wire clamp assembly according to claim 1, characterized in that: The threaded sleeve (3) is provided with snap rings (5) on both sides, and the outer side of the threaded sleeve (3) is provided with a snap groove (6) that matches the snap ring (5).

3. An insulated wire clamp assembly according to claim 1 or 2, characterized in that: The clamp body (1) is provided with a through hole (11) for the wire to pass through. At least one positioning member (7) is vertically provided above the clamp body (1). The positioning member (7) can enter the through hole (11) and abut against the wire. A rotating block (71) is provided above the positioning member (7), and a connecting pad (72) abuts against the wire is provided below the positioning member (7).

4. An insulated wire clamp assembly according to claim 3, characterized in that: The rotating block (71) includes a shearing bolt block (711) and a rotating bolt block (712), and a rubber ring (73) is provided between the shearing bolt block (711) and the rotating bolt block (712).

5. An insulated wire clamp assembly according to claim 4, characterized in that: It also includes an insulating sleeve (8) fitted outside the clamp body (1). The insulating sleeve (8) is provided with an extension ring (81) for the wire to pass through and enter the through hole (11). The extension ring (81) is provided with a through hole (82). The through hole (82) is provided with a plurality of parallel sealing rings (83) that can abut against the side of the wire. The radius of the sealing ring (83) gradually increases from the side closer to the through hole (11) to the side farther away from the through hole (11).

6. An insulated wire clamp assembly according to claim 5, characterized in that: A protective cover (9) is provided below the screw sleeve (3). The protective cover (9) has a trumpet-shaped opening and an annular extension end (90) on the outer side of the opening. The insulating sleeve (8) has a clearance hole (91) for the protective cover (9) to pass through.

7. An insulated wire clamp assembly according to claim 6, characterized in that: The insulating sleeve (8) is provided with a cover plate (92) for covering the screw sleeve (3) and a cap (93) for covering the positioning member (7).

8. An insulated wire clamp assembly according to claim 7, characterized in that: The cover plate (92) and the cap (93) are integrally formed.

9. An insulated wire clamp assembly according to claim 5, characterized in that: The insulating sleeve (8) is provided with a cover (94) covering the outside of the fastening groove (10) and the fastening nail (101). The cover (94) has a relief arc surface (95) on both sides for fingers to grip. The insulating sleeve (8) also has an abutment extension (96) that contacts the inner side of the cover (94).

10. An insulated wire clamp assembly according to claim 9, characterized in that: An annular inclined surface (97) is provided on the side of the perforation (11) that contacts the extension ring (81), and the side of the extension ring (81) near the perforation (11) is tangent to the annular inclined surface (97).

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