C-clip

Abstract

The utility model belongs to the technical field of wire clamp, specifically point to C type wire clamp, including C type clamp seat and bolt, the bolt is passed through the bottom wall center of C type clamp seat, the C type clamp seat is slidably provided with wedge tight piece, two groups of wedge tight piece are oppositely arranged and located bolt both sides, the wedge tight piece and C type clamp seat form the wire clamp hole for clamping wire, be provided with extrusion block on the bolt, the both sides wall of extrusion block is connected with two groups of wedge tight piece sliding respectively, the bolt is equipped with nut, the extrusion block and nut screw joint setting, adopt " face contact " mode, the contact area with wire is increased greatly, make the stress between wire clamp and wire more uniform, effectively reduce the contact resistance, avoid the problem of unstable resistance temperature rise because of the uneven conduction, guarantee the efficient and stable of power transmission, reduce the energy loss and potential safety hazard because of the resistance heating.

Description

Technical Field

[0001] This utility model belongs to the field of wire clamp technology, specifically referring to C-type wire clamps. Background Technology

[0002] Type C clamps are non-load-bearing splicing hardware, suitable for splicing and branching of overhead bare conductors and overhead insulated cables, and for connecting grounding devices of insulated overhead cables.

[0003] Current C-type wire clamps on the market include a C-shaped clamp base, two interlocking clamp blocks, connecting bolts, and nuts. The clamp blocks and C-shaped clamp base have corresponding openings. The connecting bolts and nuts connect the C-shaped clamp base and clamp blocks. After the wire is inserted, rotating the nut moves it downwards, causing the clamp blocks to press against both sides, clamping the wire and preventing slippage or detachment. However, to ensure smooth rotation of the clamp blocks, there needs to be a gap between the two clamp blocks. In actual operation, uneven gaps occur, with more contact near the nut and less or no contact on the side further away, leading to "line contact." This affects the breaking strength and gripping force. Furthermore, too many options are available, resulting in uneven conductor conductivity and unstable resistance and temperature rise. Additionally, current C-type wire clamps require different models for the main and branch wire materials and diameters, resulting in hundreds of specifications after assembly, requiring professional operation and making selection difficult. Utility Model Content

[0004] To address the aforementioned challenges, this invention provides a C-type wire clamp that employs a "surface contact" method, significantly increasing the contact area with the conductor. This results in more uniform force distribution between the clamp and the conductor, effectively reducing contact resistance and preventing unstable temperature rise due to uneven conductivity. This ensures efficient and stable power transmission and reduces energy loss and safety hazards caused by resistance heating.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: A C-type wire clamp, including a C-type clamp base and a bolt, wherein the bolt passes through the center of the bottom wall of the C-type clamp base, and a wedge block is slidably disposed inside the C-type clamp base. Two sets of wedge blocks are arranged opposite each other and located on both sides of the bolt. A clamping hole for clamping the wire is formed between the wedge block and the C-type clamp base. A pressing block is provided on the bolt, and the two side walls of the pressing block are slidably connected to the two sets of wedge blocks respectively. A nut is provided on the bolt, and the pressing block is screwed onto the nut. The wire is placed on the wedge block. In the clamping hole formed by the C-shaped clamp, the nut is rotated. During the rotation, the nut moves along the bolt axis. When the nut moves downward, it pushes the clamping block downward as well. As the clamping block moves downward, the two side walls apply an inward pushing force to the wedge block, gradually reducing the space of the clamping hole, thereby tightly clamping the wire. This structure adopts a "surface contact" method, which provides a large contact area and improves the problems of product deformation, uneven conductivity of the wire, and unstable resistance temperature rise caused by insufficient contact area. This greatly improves the strength, safety, and other properties of the product.

[0006] As a preferred technical solution of this utility model, a plastic fastener is connected between the extrusion block and the wedge block, which increases the integrity of the wedge block and the extrusion and avoids the risk of the wedge block accidentally falling off during high-altitude operations.

[0007] As a preferred embodiment of this utility model, the extrusion block is arranged in an inverted isosceles trapezoidal structure.

[0008] As a preferred technical solution of this utility model, an arc-shaped groove is provided on the side of the wedge block facing the wire, and the contact surface between the wedge block and the extrusion block has an inclined structure.

[0009] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure:

[0010] 1. By adopting the "surface contact" method, the contact area with the conductor is greatly increased compared with the traditional wire clamp, which effectively reduces the contact resistance, avoids the problem of unstable resistance temperature rise caused by uneven conductivity, ensures the high efficiency and stability of power transmission, and reduces energy loss and safety hazards caused by resistance heating.

[0011] 2. The large contact area makes the force between the clamp and the conductor more uniform, avoiding product deformation caused by local stress concentration, improving the overall structural strength of the clamp, and extending its service life. At the same time, the uniform force also reduces the risk of the conductor being pinched and ensures the integrity and electrical performance of the conductor.

[0012] 3. The inverted isosceles trapezoidal extrusion block, together with the wedge blocks with inclined structures on both sides, can apply uniform and continuously increasing pressure to the wire from both sides during the tightening of the nut. Combined with the arc-shaped groove design on the side of the wedge block facing the wire, it can closely fit the surface contour of the wire, further enhancing the clamping effect, preventing the wire from loosening or slipping, and improving the safety and reliability of the electrical connection.

[0013] 4. Through this structural design, the main line end wedge block has only 6 specifications and the branch line end has more than 10 specifications, which can meet most usage scenarios, greatly reducing the selection range and allowing operation with simple training. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the C-type wire clamp proposed in this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of the C-type wire clamp proposed in this utility model. Figure 2 ;

[0016] Figure 3 This is the front view of the C-type wire clamp proposed in this utility model.

[0017] The components include: 1. C-type clamp, 2. bolt, 3. wedge block, 4. compression block, 5. nut, 6. wire, and 7. plastic fastener. Detailed Implementation

[0018] 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.

[0019] 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. The utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1-3As shown, the C-type wire clamp provided by this utility model includes a C-type clamp base 1 and a bolt 2. The bolt 2 passes through the center of the bottom wall of the C-type clamp base 1. A wedge block 3 is slidably arranged inside the C-type clamp base 1. Two sets of wedge blocks 3 are arranged opposite each other and located on both sides of the bolt 2. A clamping hole for clamping the wire 6 is formed between the wedge block 3 and the C-type clamp base 1. An arc-shaped groove is provided on the side of the wedge block 3 facing the wire 6. A pressing block 4 is provided on the bolt 2. The pressing block 4 is arranged in an inverted isosceles trapezoidal structure. The two side walls of the pressing block 4 are slidably connected to the two sets of wedge blocks 3 respectively. The contact surface between the wedge block 3 and the pressing block 4 is an inclined structure. A plastic fastener 7 is connected between the pressing block 4 and the wedge block 3. The bolt 2 is equipped with The device includes a nut 5 and a clamping block 4 screwed together. The wire 6 is placed in the clamping hole formed by the wedge block 3 and the C-shaped clamp. When the nut 5 is rotated, it moves along the axial direction of the bolt 2. When the nut 5 moves downward, it pushes the clamping block 4 downward as well. As the clamping block 4 moves downward, the two side walls exert an inward pushing force on the wedge block 3, gradually reducing the space of the clamping hole, thereby tightly clamping the wire 6. This structure adopts a "surface contact" method, which provides a large contact area and improves the problems of product deformation, uneven conductivity of the wire 6, and unstable resistance and temperature rise caused by insufficient contact area. This greatly improves the strength, safety, and other properties of the product.

[0021] In practical use, the wire 6 is smoothly placed into the clamping hole formed by the wedge block 3 and the C-shaped clamp 1, so that the wire 6 is located in the center of the clamping hole. The nut 5 is screwed into the bolt 2, and the nut 5 is rotated clockwise with a wrench. During the rotation, the nut 5 moves downward along the axial direction of the bolt 2, pushing the pressing block 4 downward together. As the pressing block 4 moves downward, the two side walls of the inverted isosceles trapezoid of the pressing block 4 apply a pushing force to the wedge block 3, causing the two sets of wedge blocks 3 to slide along the inner wall of the C-shaped clamp 1 toward the wire 6, gradually reducing the clamping hole space until the wire 6 is tightly clamped.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A C-type wire clamp, comprising a C-type clamp base (1) and a bolt (2), wherein the bolt (2) penetrates the center of the bottom wall of the C-type clamp base (1), characterized in that: A wedge block (3) is slidably disposed inside the C-shaped clamp (1). Two sets of wedge blocks (3) are arranged opposite each other and located on both sides of the bolt (2). A clamping hole for clamping the wire (6) is formed between the wedge block (3) and the C-shaped clamp (1). A pressing block (4) is disposed on the bolt (2). The two side walls of the pressing block (4) are slidably connected to the two sets of wedge blocks (3) respectively. A nut (5) is disposed on the bolt (2). The pressing block (4) and the nut (5) are screwed together.

2. The C-type wire clamp according to claim 1, characterized in that: A plastic fastener (7) is connected between the extrusion block (4) and the wedge block (3).

3. The C-type wire clamp according to claim 1, characterized in that: The extrusion block (4) is arranged in an inverted isosceles trapezoidal structure.

4. The C-type wire clamp according to claim 2, characterized in that: The wedge block (3) has an arc-shaped groove on the side facing the conductor (6), and the contact surface between the wedge block (3) and the extrusion block (4) has an inclined structure.

Images