A power installation lead clamp
The worm gear drive and bidirectional screw rotation of the power installation lead wire clamp achieve self-locking, solving the problems of insufficient clamping force and lack of versatility. This enables efficient clamping of lead wires of different diameters and ensures crimping quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HUAMIN ELECTRIC POWER DESIGN CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional power systems, ordinary clamps have insufficient clamping force, are prone to slippage, affecting the crimping quality, and lack versatility, requiring the replacement with clamps of different specifications.
The power installation lead clamp consists of a main frame, mounting base, limiting groove, locking structure, and clamping structure. It achieves self-locking through worm gear transmission and bidirectional screw rotation, and is coordinated with the sliding limit of the limiting block and clamping plate to adapt to different wire diameters.
It achieves efficient clamping of leads of different diameters, prevents slippage, improves the ease of operation and applicability, and ensures crimping quality.
Smart Images

Figure CN224520537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment installation technology, and in particular to a power installation lead clamp. Background Technology
[0002] During the installation and maintenance of power systems, it is often necessary to connect leads (such as copper cables, aluminum cables, or soft copper braided wires) to the equipment terminals.
[0003] However, in existing technologies, traditional methods often involve manual hand-holding or using ordinary clamps to fix the wires. However, some ordinary clamps have insufficient clamping force and are prone to slippage during wiring, affecting the crimping quality. In addition, some clamps require different specifications when working with wires of different diameters, which is not versatile enough. Therefore, a solution is needed. Utility Model Content
[0004] The purpose of this utility model is to solve the problems existing in the prior art: traditional operation methods often use manual hand-held or ordinary clamps to fix the wires, but some ordinary clamps have insufficient clamping force and are prone to slippage during the wiring process, affecting the crimping quality. At the same time, some clamps need to be replaced with different specifications when working with wires of different diameters, resulting in insufficient versatility.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a power installation lead clamp, comprising: a main frame, and the power installation lead clamp further comprising:
[0006] Two mounting bases are disposed on the surfaces symmetrical to the main frame;
[0007] Two limiting grooves are formed on the inner wall at symmetrical locations of the main frame;
[0008] A locking structure is disposed on the surface of the main frame, the locking structure further comprising:
[0009] A bidirectional lead screw with a bearing mounted on the inner wall of the main frame, and a worm gear fixedly mounted on one end surface of the bidirectional lead screw;
[0010] A clamping structure is movably disposed inside the main frame, and the clamping structure further includes:
[0011] Two clamping arms are threaded onto the outer surface of the bidirectional lead screw at symmetrical locations.
[0012] Preferably, the locking structure further includes: a U-shaped frame, fixedly disposed on the outer surface of the main frame, wherein a worm gear is embedded in the internal bearing of the U-shaped frame, and the worm gear meshes with a worm wheel.
[0013] The technical effect of adopting the above-mentioned further solution is that when the worm gear inside the rotating U-shaped frame is rotated, the worm wheel is driven, causing the bidirectional lead screw to rotate.
[0014] Preferably, the clamping structure further includes: a plurality of limiting blocks, which are fixedly disposed on the surfaces of the two clamping arms at symmetrical locations, and one end of the plurality of limiting blocks is slidably embedded in the interior of the limiting groove.
[0015] The technical effect of adopting the above-mentioned further solution is that the limiting groove provides limiting work for the limiting block on the surface of the clamping arm.
[0016] Preferably, the clamping structure further includes: two mounting blocks, which are fixedly disposed on the outer surfaces of the two clamping arms opposite each other, and threaded holes are formed on the surfaces of the two mounting blocks near the center.
[0017] The technical advantage of adopting the above-mentioned further solution is that the mounting block on the surface is fixed by the clamping arm, and the threaded hole on the surface facilitates the installation of the parts.
[0018] Preferably, the clamping structure further includes: two long bolts, threaded into the two threaded holes, and a protrusion fixedly provided on one end surface of the two long bolts.
[0019] The technical effect of adopting the above-mentioned further solution is that it is locked by threaded connection with the long bolt through the threaded hole, and when it rotates, it drives the protrusion on the surface of the output end to move.
[0020] Preferably, the clamping structure further includes: two sets of guide rods, which are slidably embedded on the surfaces of the two clamping arms, and clamping plates are fixedly provided on one end surface of the two sets of guide rods.
[0021] The technical effect of adopting the above-mentioned further solution is that the clamping arm provides a limiting function for the guide rod, thereby positioning the clamping piece on the surface.
[0022] Preferably, the clamping structure further includes: two sets of anti-slip grooves formed on the surfaces of the two clamping pieces, and one side surface of the two clamping pieces is movably connected to the surface of the protrusion.
[0023] The technical effect of adopting the above-mentioned further solution is that the anti-slip groove on the surface of the clamping plate facilitates the anti-slip operation of the lead wire, while providing power by connecting with the protrusion.
[0024] Preferably, the clamping structure further includes: two sets of springs, fixedly disposed symmetrically on one side surface of the two clamping plates, and the other ends of the two sets of bidirectional lead screws fixedly disposed on the surface of the clamping arm.
[0025] The technical effect of adopting the above-mentioned further solution is that by connecting the two ends of the spring to the surfaces of the clamping arm and the clamping plate respectively, it provides a reset function for them.
[0026] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0027] 1. In this utility model, by passing the lead wire through the two clamping plates, the worm gear inside the rotating U-shaped frame drives the worm wheel to perform transmission, so that the bidirectional lead screw rotates inside the main frame, thereby driving the clamping arms at the symmetrical positions on the outer surface to perform centering movement. The limiting block on the surface slides and is embedded in the limiting groove to complete the limiting, thereby performing clamping and locking work, and providing a self-locking function.
[0028] 2. In this utility model, when the diameter of the lead wire is small, the long bolt inside the threaded hole is rotated to make the protrusion contact the clamping plate. With the help of the guide rod, it is slidably embedded on the surface of the clamping arm for limiting, thereby making the clamping plate move to connect the lead wire with a smaller diameter. In addition, the anti-slip groove provides anti-slip work, further completing the locking work for lead wires of different diameters, improving the applicability of the device, and making the operation simple. Attached Figure Description
[0029] Figure 1 This utility model provides a side view of the structure of a power installation lead clamp;
[0030] Figure 2 This utility model provides a partially unfolded structural diagram of a power installation lead clamp;
[0031] Figure 3 This utility model provides a bottom view structural diagram of a power installation lead clamp;
[0032] Figure 4 This utility model proposes a power installation lead clamp. Figure 2 Enlarged structural diagram at point A in the middle.
[0033] Legend:
[0034] 1. Main frame; 101. Mounting base; 102. Limiting groove; 103. Two-way lead screw; 1031. Worm gear; 104. Clamping arm; 1041. Mounting block; 1042. Threaded hole; 1043. Long bolt; 1045. Protrusion; 1046. Limiting block; 105. U-shaped frame; 1051. Worm gear; 106. Guide rod; 1061. Clamping piece; 1062. Anti-slip groove; 1063. Spring. Detailed Implementation
[0035] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0036] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0037] Example 1, as Figure 1-4 As shown, the fixture includes a main frame 1, which serves as the load-bearing skeleton of the entire fixture. It is made of high-strength insulating composite material. On the two symmetrical outer surfaces of the main frame 1, mounting seats 101 are respectively provided and connected to the external operating rod by bolts or snaps. On the two symmetrical side walls inside the main frame 1, limit grooves 102 are provided to guide and limit the subsequent moving parts, preventing them from rotating or deviating during movement. The locking structure includes a bidirectional lead screw 103, which is rotatably mounted between the inner walls of the main frame 1 through bearings to ensure its smooth rotation. One end of the bidirectional lead screw 103 is exposed outside the main frame 1, and a worm gear 1031 is fixedly connected to its end face. The worm gear 1031 is used for meshing with parts, thereby driving the bidirectional lead screw 103 to rotate synchronously. Two clamping arms 104 are respectively threaded onto the two reverse threads of the bidirectional lead screw 103 for centering movement and clamping the lead wire.
[0038] In this embodiment, by passing the lead wire through the two clamping pieces 1061, the worm gear 1051 inside the rotating U-shaped frame 105 drives the worm wheel 1031 to perform transmission, so that the bidirectional lead screw 103 rotates inside the main frame 1, thereby driving the clamping arms 104 at the symmetrical position on the outer surface to perform centering movement. The limiting block 1046 on the surface slides and is embedded in the limiting groove 102 to complete the limiting, thereby performing clamping and locking work, and providing a self-locking function.
[0039] Example 2, as Figure 1-4As shown, a worm gear 1051 is rotatably embedded inside the U-shaped frame 105 via bearings for easy driving. The worm gear 1051 meshes with a worm wheel 1031 fixed to the end of the bidirectional lead screw 103, exhibiting self-locking characteristics. Multiple limiting blocks 1046 are fixedly mounted on the symmetrical outer surfaces of the two clamping arms 104. One end of each limiting block 1046 is slidably embedded in a limiting groove 102 opened in the inner wall of the main frame 1. The limiting groove 102 and the limiting block 1046 cooperate to form a linear guide pair, restricting the clamping arm 104 to only perform linear reciprocating motion along the axial direction of the main frame 1, ensuring smooth and reliable clamping action. A threaded hole 1042 is opened on the side surface of the mounting block 1041 near the center. Two long bolts 1043 are also present. The threads are embedded in the threaded holes 1042 and can be screwed in or out axially to adjust the clamping preload. Each long bolt 1043 has a protrusion 1045 fixedly installed at its inner end, serving as the driving connection point for the clamping plate 1061. Two sets of guide rods 106 are slidably embedded in guide holes on the surface of the clamping arm 104. Each set preferably includes two parallel guide rods to improve movement stability. The inner ends of the two sets of guide rods 106 are fixedly connected to the clamping plate 1061. Anti-slip grooves 1062 are formed on the contact surface of the clamping plate 1061, preferably with cross-hatching, serrated, or diamond-shaped protrusions, to increase friction with the wire sheath and prevent slippage. Two sets of springs 1063... The clamping piece 1061 is fixedly installed on the side of the clamping piece 1061 away from the wire, so that the clamping piece 1061 has an elastic buffer function: when the wire is clamped, the spring 1063 is compressed, and the clamping piece 1061 automatically fits the outer diameter of the wire to achieve "flexible clamping" and effectively protect the wire.
[0040] In this embodiment, when the diameter of the lead wire is small, the long bolt 1043 inside the threaded hole 1042 is rotated to make the protrusion 1045 contact the clamping piece 1061. The guide rod 106 slides and is embedded on the surface of the clamping arm 104 for limiting, thereby allowing the clamping piece 1061 to move and connect the lead wire with a smaller diameter. The anti-slip groove 1062 provides anti-slip function, further completing the locking work for lead wires of different diameters, improving the applicability of the device, and making the operation simple.
[0041] Working principle: In use, the lead wire is passed through the two clamping plates 1061. The worm gear 1051 inside the rotating U-shaped frame 105 drives the worm wheel 1031, causing the bidirectional lead screw 103 to rotate inside the main frame 1. This rotates the clamping arms 104 symmetrically positioned on the outer surface, aligning them with the limiting blocks 1046 on the surface, which slide into the limiting grooves 102 to achieve limiting and locking, providing a self-locking function. Additionally, when the lead wire diameter is small, [further details about the function are needed]. The long bolt 1043 inside the rotating threaded hole 1042 causes the protrusion 1045 to contact the clamping piece 1061. With the help of the guide rod 106, it is slidably embedded on the surface of the clamping arm 104 for limiting, thereby allowing the clamping piece 1061 to move and connect to lead wires with smaller diameters. It also works with the anti-slip groove 1062 to provide anti-slip function, further completing the locking work for lead wires of different diameters, improving the applicability of the device, and making the operation simple. Finally, the main frame 1 is installed with the help of the mounting base 101 and other parts.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An electrical power installation lead clamp, comprising: The main frame (1) is characterized in that the power installation lead clamp further includes: Two mounting bases (101) are disposed on the surfaces symmetrical to the main frame (1); Two limiting grooves (102) are formed on the inner wall at symmetrical locations of the main frame (1); A locking structure is disposed on the surface of the main frame (1), the locking structure further comprising: A two-way lead screw (103) is provided with a bearing on the inner wall of the main frame (1), and a worm gear (1031) is fixedly provided on one end surface of the two-way lead screw (103). A clamping structure is movably disposed inside the main frame (1), and the clamping structure further includes: Two clamping arms (104) are threaded onto the outer surface of the bidirectional lead screw (103) at symmetrical locations.
2. A power installation lead clamp according to claim 1, characterised in that: The locking structure further includes: A U-shaped frame (105) is fixedly installed on the outer surface of the main frame (1). The internal bearing of the U-shaped frame (105) is fitted with a worm (1051), which meshes with a worm wheel (1031).
3. A power installation lead clamp according to claim 1, wherein: The clamping structure also includes: Multiple limiting blocks (1046) are fixedly disposed on the surfaces of the two clamping arms (104) at symmetrical locations, and one end of the multiple limiting blocks (1046) is slidably embedded in the inside of the limiting groove (102).
4. A power installation lead clamp according to claim 3, wherein: The clamping structure also includes: Two mounting blocks (1041) are fixedly mounted on the outer surfaces of the two clamping arms (104) opposite each other, and threaded holes (1042) are provided on the surfaces of the two mounting blocks (1041) near the center.
5. A power installation lead clamp according to claim 4, wherein: The clamping structure also includes: Two long bolts (1043) are threaded into the two threaded holes (1042), and a protrusion (1045) is fixedly provided on one end surface of the two long bolts (1043).
6. A power installation lead clamp according to claim 5, wherein: The clamping structure also includes: Two sets of guide rods (106) are slidably embedded on the surfaces of the two clamping arms (104), and clamping pieces (1061) are fixedly provided on one end surface of the two sets of guide rods (106).
7. A power installation lead clamp according to claim 6, wherein: The clamping structure also includes: Two sets of anti-slip grooves (1062) are formed on the surfaces of the two clamping pieces (1061), and one side surface of the two clamping pieces (1061) is movably connected to the surface of the protrusion (1045).
8. A power installation lead clamp according to claim 7, characterized in that: The clamping structure also includes: Two sets of springs (1063) are fixedly disposed symmetrically on one side of the two clamping plates (1061), and the other end of the two sets of bidirectional lead screws (103) is fixedly disposed on the surface of the clamping arm (104).