A lead clamp for electrical installation

Abstract

The present invention discloses a lead clamp for electric power installation, which relates to the technical field of electric power fittings and includes a clamp body and a wedge-shaped chute. In this lead clamp for electric power installation, when installing wires of different specifications, the lifting is adjusted by rotating the rotating handle, and the wire is clamped in cooperation with the wedge block body. The diameter of the wire affects the rigidity and deformation. The clamp adjusts the angle of the arc-shaped bending plate through the pull rod and the fitting rod to ensure that it fits the wire, reduce deformation and wear, and extend the service life. Moreover, when the wire is subjected to external force, the arc-shaped bending plate is squeezed, and the cooperating clamping plate rises through the extrusion block and the extrusion groove, radially pressing the wire tightly and dispersing the force. When the external force disappears, the spring drives the clamping plate to reset and maintain a low pressing force to avoid wire damage. At the same time, when the arc-shaped bending plate moves, it drives the fitting rod two, and the maximum pressing force is kept stable through the gear and the ratchet to prevent repeated pressing and loosening caused by wind shaking and enhance the stability of the clamp during use.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power fittings, and specifically provides a lead clamp for electric power installation. Background Technique

[0002] Electric power installation refers to the process of installing, commissioning, and testing various electric power equipment, cables, lines, etc. according to the requirements and designs of the power system. Electric power installation not only concerns the transmission and distribution of electric energy but also directly affects the stability and safety of the power system. Among them, overhead lines, as one of the main ways of electric power transmission, their installation and maintenance work are particularly crucial. Overhead lines transmit electric energy from power plants to user terminals through components such as tower poles, conductors, and insulators. Their advantages include low cost, fast construction speed, and easy maintenance. However, overhead lines also face challenges from the natural environment, such as wind vibration, snow pressure, lightning, etc.

[0003] The wedge-shaped strain clamp, as a key fitting for connecting conductors to tower poles, has a unique design. It uses the self-tension of the stranded wire to lock the stranded wire inside the clamp, effectively preventing the conductor from loosening or falling off due to vibration. In addition, especially on the insulators of corner or terminal strain towers, its arc-shaped structure can match the bending shape of the conductor, thereby reducing stress concentration and wear caused by shape mismatch. At the same time, the wedge-shaped strain clamp also has characteristics such as corrosion resistance and wear resistance, and can adapt to various complex climate and environmental conditions to ensure the stability and safety of overhead lines.

[0004] However, the existing wedge-shaped strain clamps on the market have size distinctions. Different specifications of conductors require specified specification models of clamps to achieve the fixing operation of the conductors, and their applicability is limited to a certain extent. Moreover, in the case where the conductor bears a large tension and environmental external forces (such as wind force), the working principle of traditional wedge-shaped strain clamps is that when the conductor is subjected to external forces, a wedge block will move and radially press the conductor, thereby ensuring the close contact and stable connection between the conductor and the clamp to prevent detachment. However, when the environmental external force calms down, due to the self-locking characteristics of the wedge blocks in the wedge-shaped strain clamp, it means that once the wedge blocks move and press the conductor, they will form a locked state, making it difficult for the wedge blocks to be pushed back to their original positions by external forces. The long-term high-strength pressing may cause fatigue of the conductor material, especially near the pressing part, which may reduce the overall strength and durability of the conductor. Summary of the Invention

[0005] The purpose of the present invention is to provide a lead clamp for electric power installation to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A lead clamp for electrical installation, comprising a clamp body, a wedge-shaped chute, a wedge block body, and an arc-shaped bent plate. A cavity is formed in the lower inner wall of the wedge-shaped chute, and a support plate is slidably connected to the inner wall of the cavity.

[0007] A wire adaptation component is arranged on the top of the support plate, so that when installing the wire, wires of different specifications can be clamped and fitted, reducing the deformation and wear of the wire when it is stressed.

[0008] A pressing and loosening component is arranged on the top of the support plate, so that when the wire is subjected to environmental external forces, the pressing force on the wire surface can be dispersed, and a lower pressing force can be maintained when there is no external force.

[0009] An auxiliary component is arranged on the top of the support plate, so that when the wire shakes continuously, the maximum pressing force can be kept unchanged, avoiding wear and fatigue of the wire.

[0010] Preferably, the wire adaptation component includes an adjustment seat, and the outer wall of the adjustment seat is slidably fitted with the inner wall of the cavity. The top of the adjustment seat is arc-shaped, and a first movable groove is formed in the top of the adjustment seat. A mating clamping plate is slidably fitted to the inner wall of the first movable groove, and a second movable groove is formed through the inner wall of the first movable groove. Two connecting plates are fixedly connected to the lower surface of the mating clamping plate, and the outer walls of the connecting plates are slidably fitted with the inner wall of the second movable groove. A screw rod is rotatably connected to the bottom of the adjustment seat. A third movable groove is formed in the top of the support plate corresponding to the penetration of the screw rod. The bottom of the screw rod passes through the inside of the clamp body and extends to the outside of the clamp body, and a rotating handle is fixedly connected to the bottom of the screw rod. The outer wall of the screw rod is threadedly connected to the inside of the clamp body. Two fitting rods I are arranged on one side wall of the support plate facing the arc-shaped bent plate.

[0011] Preferably, two support rods are fixedly connected to the top of the support plate. A first limiting groove is formed in the bottom of the adjustment seat corresponding to the support rods, and the top of the support rods is T-shaped. The top of the support rods is slidably fitted with the inner wall of the first limiting groove. Limiting rods are fixedly connected to the outer walls of the two support rods close to each other corresponding to the connecting plates, and the outer walls of both sides of the connecting plates are slidably fitted with the outer walls of the two limiting rods close to each other.

[0012] Preferably, the wedge-shaped chute is formed in the middle position of the outside of the clamp body. The wedge block body is movably installed in the wedge-shaped chute. The arc-shaped bent plate is arranged on the front inner wall of the wedge-shaped chute.

[0013] Preferably, a pull rod is hinged to the outer wall of the side of the support plate away from the arc-shaped bent plate, and the other end of the pull rod is hinged to the inner wall of the cavity. A shaft rod is fixedly connected to the inside of the arc-shaped bent plate, and both ends of the shaft rod are rotatably connected to the inner wall of the wedge-shaped chute. Reset torsion springs are attached to the outer walls of both ends of the shaft rod. One end of the reset torsion spring is lapped on the outer wall of the shaft rod, and the other end of the reset torsion spring is lapped on the inner wall of the wedge-shaped chute.

[0014] Preferably, the pressing and loosening component includes a first spring. A first groove is formed at one end of the first fitting rod facing the support plate, and the inner wall of the first groove is in sliding fit with the upper and lower surfaces of the support plate. One end of the first spring is fixedly connected to the inner wall of the first groove, and the other end of the first spring is fixedly connected to the outer wall of one side of the support plate. A first sliding rod is fixedly connected to the end of the first fitting rod away from the arc-shaped bent plate, and the bottom of the first sliding rod is in sliding fit with the upper surface of the support plate. An extrusion block is fixedly connected to the top of the first sliding rod, and the upper surface of the extrusion block is beveled. An extrusion groove is formed in the bottom of the connecting plate corresponding to the extrusion block. A gear tooth is fixedly connected to the upper surface of the end of the first sliding rod away from the first fitting rod.

[0015] Preferably, the first fitting rod and the support plate form a telescopic structure through the first spring, and the other end of the first fitting rod is attached to the side wall of the arc-shaped bent plate through the first spring.

[0016] Preferably, the auxiliary component includes a second fitting rod. A second groove is formed at one end of the second fitting rod facing the support plate, and the inner wall of the second groove is in sliding fit with the outer wall of the support plate. A second spring is fixedly connected to the inner wall of the second groove, and the other end of the second spring is fixedly connected to the outer wall of one side of the support plate. A second sliding rod is fixedly connected to the end of the second fitting rod away from the arc-shaped bent plate, and the bottom of the second sliding rod is in sliding fit with the upper surface of the support plate. Two mounting plates are fixedly connected to the top of the support plate. A rotating rod is rotatably connected to the side walls of the two mounting plates close to each other, and two gears are fixedly connected to the outer wall of the rotating rod. The bottom sides of the gears are meshed and matched with the gear teeth. A ratchet wheel is fixedly connected to the outer wall of the rotating rod.

[0017] Preferably, the top of the support plate is fixedly connected to a fixing frame corresponding to the sliding rod 2, and one end of the sliding rod 2 away from the arc bent plate passes through a side wall of the fixing frame and extends to the other side wall, the top of the fixing frame is penetrated by a limiting groove 2, and the inner wall of the limiting groove 2 is slidably connected with a top block, and the bottom of the top block is fixedly connected with two sliding blocks, and the outer walls on both sides of the sliding rod 2 are provided with movable grooves 4 corresponding to the sliding blocks, and the outer walls of the sides where the two sliding blocks are close to each other slide in a sliding manner, and the outer walls of the sides where the two sliding blocks are close to each other slide in a fixed manner, and the inner wall of the movable groove 4 is provided with a guide straight groove corresponding to the sliding column, and the inner wall of the movable groove 4 is provided with a guide inclined groove corresponding to the sliding column, and the outer wall of the sliding column slides in a sliding manner with the inner walls of the guide straight groove and the guide inclined groove.

[0018] Preferably, a slot is provided at the top of the top block, and a spring three is fixedly connected to the inner wall of the slot, a block is fixedly connected to the other end of the spring three, and the outer wall of the block slides in contact with the inner wall of the slot.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When installing wires of different specifications, the adjusting seat can be driven to move up and down by rotating the handle, so that it can cooperate with the wedge block body to clamp wires of different specifications. At the same time, since the diameter of the wire directly determines its rigidity and the degree of deformation when subjected to force, during the clamping process, the angle of the arc-shaped bent plate can be synchronously adjusted through the cooperation of the pull rod and the fitting rod, so that the surface of the arc-shaped bent plate can be kept in contact with the wires of different specifications, reducing the deformation and wear of the wire when subjected to force, thereby extending the service life of the wire and the clamp.

[0021] 2. When the conductor is subjected to external environmental forces, the arc-shaped bent plate will be pressed synchronously, so that the matching clamping plate can gradually rise through the cooperation of the extrusion block and the extrusion groove, and cooperate with the wedge block body, and simultaneously radially compress the surface of the conductor to disperse the compression force. When the external environmental forces are calm, the matching clamping plate can be driven back to its original position by the spring, ensuring that a low compression force can be maintained when no external forces are applied, avoiding fatigue and damage of the conductor due to long-term high-intensity compression, and helping to improve the stability and safety of the power lines.

[0022] 3. When the wire is subjected to environmental external forces and the arc-shaped bent plate moves, it can synchronously drive the second fitting rod to move. Thus, through the cooperation of the gear and the ratchet, it can be ensured that the maximum pressing force of the fitting clamp remains unchanged. This avoids the situation where when the wire sways under the action of wind, due to the continuously changing extrusion force on the arc-shaped bent plate, the fitting clamp continuously repeats the pressing and loosening steps, resulting in unnecessary wear and fatigue of the wire, and enhancing the usage stability of this fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic diagram of the structure inside the wedge-shaped sliding groove of the present invention;

[0025] Figure 3 is a schematic diagram of a partial structure of the overall of the present invention;

[0026] Figure 4 is a schematic diagram of the structure of the first part of the wire adaptation component of the present invention;

[0027] Figure 5 is a schematic diagram of the structure of the second part of the wire adaptation component of the present invention;

[0028] Figure 6 is a schematic diagram of the structure of the pressing and loosening component of the present invention;

[0029] Figure 7 is a schematic diagram of the structure of the first part of the auxiliary component of the present invention;

[0030] Figure 8 is a schematic diagram of the structure of the second part of the auxiliary component of the present invention;

[0031] Figure 9 is a schematic diagram of the structure of the third part of the auxiliary component of the present invention.

[0032] In the figure: 1. Clamp body; 2. Wedge-shaped chute; 3. Wedge block body; 4. Arc-shaped bent plate; 5. Cavity; 6. Support plate; 10. Fitting rod one; 7. Wire adapter component; 701. Adjusting seat; 702. First movable groove; 703. Matching clamping plate; 704. Second movable groove; 705. Connecting plate; 706. Screw rod; 707. Third movable groove; 708. Rotating handle; 709. Support rod; 710. First limiting groove; 711. Limiting rod; 712. Pull rod; 713. Shaft rod; 714. Reset torsion spring; 8. Pressing and loosening component; 801. First groove; 802. First spring; 803. First sliding rod; 804. Extrusion block; 805. Extrusion groove; 806. Teeth; 9. Auxiliary component; 901. Fitting rod two; 902. Second groove; 903. Second spring; 904. Second sliding rod; 905. Mounting plate; 906. Rotating rod; 907. Gear; 908. Ratchet; 909. Fixed bracket; 910. Second limiting groove; 911. Top block; 912. Slide block; 913. Fourth movable groove; 914. Slide column; 915. Guiding straight groove; 916. Guiding inclined groove; 917. Card slot; 918. Third spring; 919. Card block. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Example 1. Please refer to Figures 1-9 , the present invention provides a lead clamp for electrical installation, including a clamp body 1. A wedge-shaped chute 2 is provided at the middle position of the outside of the clamp body 1. A wedge block body 3 is movably installed inside the wedge-shaped chute 2. An arc-shaped bent plate 4 is provided on the front inner wall of the wedge-shaped chute 2.

[0035] A cavity 5 is provided on the lower inner wall of the wedge-shaped chute 2, and a support plate 6 is slidably connected to the inner wall of the cavity 5.

[0036] A wire adapter component 7 is provided on the top of the support plate 6.

[0037] Further, the wire adapter component 7 includes an adjustment seat 701, and the outer wall of the adjustment seat 701 is fitted and slid with the inner wall of the cavity 5, the top of the adjustment seat 701 is an arc surface, and a movable groove 1 702 is opened on the top of the adjustment seat 701, the inner wall of the movable groove 1 702 is adapted and slidably connected with a matching clamping plate 703, and the inner wall of the movable groove 1 702 is penetrated with a movable groove 2 704, and the lower surface of the matching clamping plate 703 is fixedly connected with two connecting plates 705, and the outer wall of the connecting plate 705 is connected to the inner wall of the cavity 5. The inner walls of the movable groove 2 704 fit together and slide, the bottom of the adjustment seat 701 is rotatably connected to a screw rod 706, and the top of the support plate 6 is provided with a movable groove 3 707 corresponding to the screw rod 706. The bottom of the screw rod 706 passes through the interior of the wire clamp body 1 and extends to the outside of the wire clamp body 1, and the bottom of the screw rod 706 is fixedly connected to a handle 708. The outer wall of the screw rod 706 is threadedly connected to the interior of the wire clamp body 1, and two fitting rods 10 are provided on one side wall of the support plate 6 facing the arc-shaped bent plate 4.

[0038] In this embodiment, when installing wires of different specifications, the wires are first passed through the wedge-shaped slide grooves 2 of the wire clamp body 1 , and then the wires and the wedge body 3 are fixed to each other through the clamping blocks of the wedge body 3 .

[0039] Then, a cavity 5 is opened through the lower inner wall of the wedge-shaped slide groove 2, and the outer wall of the adjustment seat 701 slides in contact with the inner wall of the cavity 5, and the bottom of the adjustment seat 701 is rotatably connected to a screw 706, and at the same time, the bottom of the screw 706 passes through the interior of the wire clamp body 1 and extends to the outside of the wire clamp body 1, and the bottom of the screw 706 is fixedly connected to a handle 708, so that the adjustment seat 701 can be restricted by the cavity 5, so that when the handle 708 is rotated, the adjustment seat 701 can be synchronously driven to move up and down.

[0040] Then, the top of the adjustment seat 701 is curved, and a movable groove 702 is opened on the top of the adjustment seat 701, and the inner wall of the movable groove 702 is adapted to be slidably connected with a matching clamp 703, so that the adjustment seat 701 can be used to drive the matching clamp 703 to move synchronously. At this time, the matching clamp 703 and the wedge block body 3 can cooperate with each other to clamp wires of different specifications.

[0041] Furthermore, since the diameter of the wire directly determines its rigidity and the degree of deformation when subjected to force, the bending curvature of the wire with a smaller diameter can be larger, while the bending curvature of the wire with a larger diameter can be smaller. Therefore, in order to enable the surface of the arc-shaped bending plate 4 to synchronously adapt to wires of different diameters and maintain mutual fit with them.

[0042] On one side of the support plate 6 facing the arc-shaped bent plate 4, there are two first fitting rods 10. The first fitting rods 10 form a telescopic structure with the support plate 6 through the first springs 802. The other end of the first fitting rods 10 is attached to one side wall of the arc-shaped bent plate 4 through the first springs 802. At the same time, a shaft rod 713 is fixedly connected inside the arc-shaped bent plate 4. The two ends of the shaft rod 713 are rotatably connected to the inner wall of the wedge-shaped chute 2. The outer walls of the two ends of the shaft rod 713 are provided with reset torsion springs 714 in a fitting manner. One end of the reset torsion spring 714 is lapped on the outer wall of the shaft rod 713, and the other end of the reset torsion spring 714 is lapped on the inner wall of the wedge-shaped chute 2. Thus, under normal circumstances, the arc-shaped bent plate 4 is driven by the reset torsion spring 714, so that the other end of the first fitting rod 10 is attached to one side wall of the arc-shaped bent plate 4 through the first spring 802. When the clamping plate 703 rises to clamp a wire with a small diameter, at this time, the first fitting rod 10 will be driven to rise synchronously. The linear rise of the first fitting rod 10 will cause the arc-shaped bent plate 4 to rotate clockwise, and at this time, the bending radian will become smaller and not match the wire with a small diameter. Therefore, a second movable groove 704 is penetrated through the inner wall of the first movable groove 702. Two connecting plates 705 are fixedly connected to the lower surface of the clamping plate 703. The outer walls of the connecting plates 705 are in sliding fit with the inner wall of the second movable groove 704. At the same time, a third movable groove 707 is penetrated through the top of the support plate 6 corresponding to the screw rod 706. Two support rods 709 are fixedly connected to the top of the support plate 6. A first limiting groove 710 is opened at the bottom of the adjusting seat 701 corresponding to the support rods 709. The top of the support rod 709 is in a T shape, and the top of the support rod 709 is in sliding fit with the inner wall of the first limiting groove 710. At the same time, a pull rod 712 is hinged to the outer wall of the support plate 6 away from the arc-shaped bent plate 4. The other end of the pull rod 712 is hinged to the inner wall of the cavity 5. Thus, when the clamping plate 703 rises, the support plate 6 can be driven to rise synchronously through the cooperation between the support rod 709 and the first limiting groove 710. At this time, through the arrangement of the pull rod 712, when the support plate 6 rises, it will slide synchronously in a direction away from the arc-shaped bent plate 4, so that the arc-shaped bent plate 4 rotates counterclockwise, and the bending radian becomes larger, so that it can match the wire with a small diameter. Similarly, when the clamping plate 703 descends to clamp a wire with a large diameter, the bending radian will become smaller, so as to realize synchronous adjustment of the angle of the arc-shaped bent plate 4, so that for wires of different specifications, the surface of the arc-shaped bent plate 4 can be kept in mutual fit with them, reducing the deformation and wear of the wire when it is stressed.

[0043] As described above, when installing wires of different specifications, the adjusting seat 701 can be driven to move up and down by rotating the handle 708, so that it can cooperate with the wedge block body 3 to clamp wires of different specifications. At the same time, since the diameter of the wire directly determines its rigidity and the degree of deformation when subjected to force, during the clamping process, the angle of the arc-shaped bent plate 4 can be synchronously adjusted through the cooperation of the pull rod 712 and the fitting rod 10, so that the surface of the arc-shaped bent plate 4 can be kept in contact with the wires of different specifications, reducing the deformation and wear of the wire when subjected to force, thereby extending the service life of the wire and the clamp.

[0044] Embodiment 2: Based on the above embodiment, a loosening pressing component 8 is provided on the top of the support plate 6 .

[0045] Furthermore, the loosening component 8 includes a spring 802, a groove 801 is provided at one end of the fitting rod 10 toward the support plate 6, and the inner wall of the groove 801 fits and slides with the upper and lower surfaces of the support plate 6, one end of the spring 802 is fixedly connected to the inner wall of the groove 801, and the other end of the spring 802 is fixedly connected to the outer wall of one side of the support plate 6, the end of the fitting rod 10 away from the arc-shaped bent plate 4 is fixedly connected to a sliding rod 803, and the bottom of the sliding rod 803 fits and slides with the upper surface of the support plate 6, the top of the sliding rod 803 is fixedly connected to an extrusion block 804, and the upper surface of the extrusion block 804 is inclined, the bottom of the connecting plate 705 is provided with an extrusion groove 805 corresponding to the extrusion block 804, and the upper surface of the sliding rod 803 away from the fitting rod 10 is fixedly connected to a gear tooth 806.

[0046] In this embodiment, when the wire is subjected to external environmental forces, the wire will be tightened, so as to be able to extrude the arc-shaped bent plate 4 that fits it, and thus be able to drive the first fitting rod 10 to move by the movement of the arc-shaped bent plate 4. At this time, a first sliding rod 803 is fixedly connected to the end of the first fitting rod 10 away from the arc-shaped bent plate 4, and the bottom of the first sliding rod 803 is in sliding fit with the upper surface of the support plate 6. A pressing block 804 is fixedly connected to the top of the first sliding rod 803. At the same time, the upper surface of the pressing block 804 is inclined, and a pressing groove 805 is formed in the bottom of the connecting plate 705 corresponding to the pressing block 804. Thus, the first sliding rod 803 can be driven to move by the first fitting rod 10, and then a plurality of pressing blocks 804 can be driven to press the pressing groove 805 of the connecting plate 705. At this time, a limiting rod 711 is fixedly connected to the outer wall of the two support rods 709 close to each other corresponding to the connecting plate 705, and the outer walls of the two sides of the connecting plate 705 are in sliding fit with the outer walls of the two limiting rods 711 close to each other. Thus, under the limitation of the limiting rod 711, the connecting plate 705 can drive the cooperating clamping plate 703 to rise by the cooperation of the pressing block 804 and the pressing groove 805, form a cooperation with the moving wedge block body 3 itself, and synchronously radially press the surface of the wire to disperse the pressing force.

[0047] At this time, when the external environmental force is calm, the wire will no longer be subjected to the external environmental force, and the extrusion force applied to the arc-shaped bent plate 4 will become smaller. At this time, one end of a first spring 802 is fixedly connected to the inner wall of the first groove 801, and the other end of the first spring 802 is fixedly connected to the outer wall of the support plate 6. Thus, the cooperating clamping plate 703 can be driven back to its original position by the first spring 802, ensuring that a lower pressing force can be maintained when no external force acts, and avoiding fatigue and damage of the wire due to long-term high-strength pressing.

[0048] As described above, when the wire is subjected to external environmental forces, the arc-shaped bent plate 4 will be synchronously and fittingly extruded. Thus, through the cooperation of the pressing block 804 and the pressing groove 805, the cooperating clamping plate 703 can be gradually raised, form a cooperation with the wedge block body 3, and synchronously radially press the surface of the wire to disperse the pressing force. Furthermore, when the external environmental force is calm, the cooperating clamping plate 703 can be driven back to its original position by the first spring 802, ensuring that a lower pressing force can be maintained when no external force acts, and avoiding fatigue and damage of the wire due to long-term high-strength pressing, which helps to improve the stability and safety of the power line.

[0049] Embodiment 3, on the basis of the above embodiment, an auxiliary component 9 is arranged on the top of the support plate 6.

[0050] Further, the auxiliary component 9 includes a second fitting rod 901. A second groove 902 is formed at one end of the second fitting rod 901 facing the support plate 6. The inner wall of the second groove 902 is in sliding fit with the outer wall of the support plate 6. A second spring 903 is fixedly connected to the inner wall of the second groove 902, and the other end of the second spring 903 is fixedly connected to the outer wall of one side of the support plate 6. A second sliding rod 904 is fixedly connected to the end of the second fitting rod 901 away from the arc-shaped bent plate 4, and the bottom of the second sliding rod 904 is in sliding fit with the upper surface of the support plate 6. Two mounting plates 905 are fixedly connected to the top of the support plate 6. A rotating rod 906 is rotatably connected to the side walls of the two mounting plates 905 close to each other. Two gears 907 are fixedly connected to the outer wall of the rotating rod 906. The bottom side of the gear 907 is meshed and matched with the tooth 806. A ratchet 908 is fixedly connected to the outer wall of the rotating rod 906.

[0051] In this embodiment, when the wire is subjected to relatively strong environmental external forces, the wire will shake continuously at this time, so that the extrusion force on the arc-shaped bent plate 4 will change continuously. As a result, under the action of the first spring 802, the cooperating clamping plate 703 will continuously repeat the steps of pressing and loosening, which may cause unnecessary wear and fatigue to the wire. Therefore, a second groove 902 is formed at one end of the second fitting rod 901 facing the support plate 6. The inner wall of the second groove 902 is in sliding fit with the outer wall of the support plate 6. A second spring 903 is fixedly connected to the inner wall of the second groove 902. At the same time, the other end of the second spring 903 is fixedly connected to the outer wall of one side of the support plate 6. A second sliding rod 904 is fixedly connected to the end of the second fitting rod 901 away from the arc-shaped bent plate 4. The bottom of the second sliding rod 904 is in sliding fit with the upper surface of the support plate 6. Thus, under normal circumstances, the first fitting rod 10 and the second fitting rod 901 will synchronously fit with the surface of the arc-shaped bent plate 4. That is, when the arc-shaped bent plate 4 squeezes the first fitting rod 10, it will synchronously squeeze the second fitting rod 901. At this time, two mounting plates 905 are fixedly connected to the top of the support plate 6. A rotating rod 906 is rotatably connected to the side walls of the two mounting plates 905 close to each other. Two gears 907 are fixedly connected to the outer wall of the rotating rod 906. At the same time, the bottom side of the gear 907 is meshed and matched with the tooth 806. Thus, when the first fitting rod 10 moves, the gear 907 will be driven to rotate by the tooth 806 on the first sliding rod 803, and then the ratchet 908 will be driven to rotate synchronously.

[0052] At this time, when the fitting rod two 901 moves, a fixing frame 909 is fixedly connected to the top of the support plate 6 corresponding to the sliding rod two 904. One end of the sliding rod two 904 away from the arc-shaped bent plate 4 passes through one side wall of the fixing frame 909 and extends to the other side wall. A second limiting groove 910 is formed through the top of the fixing frame 909. At the same time, the inner wall of the second limiting groove 910 is in sliding fit with a top block 911. Two sliders 912 are fixedly connected to the bottom of the top block 911. Activity grooves four 913 are formed in the outer walls on both sides of the sliding rod two 904 corresponding to the sliders 912. At the same time, the outer walls of the two sliders 912 on the approaching side are in sliding fit with the inner walls of the activity grooves four 913. A sliding column 914 is fixedly connected to the outer walls of the two sliders 912 on the approaching side. A guiding straight groove 915 is formed in the inner wall of the activity groove four 913 corresponding to the sliding column 914. At the same time, a guiding inclined groove 916 is formed in the inner wall of the activity groove four 913 corresponding to the sliding column 914. The outer wall of the sliding column 914 is in sliding fit with the inner walls of the guiding straight groove 915 and the guiding inclined groove 916, so that the sliding rod two 904 can be synchronously driven to pass through the inside of the fixing frame 909 and move. At this time, through the cooperation of the sliding column 914 with the guiding inclined groove 916 and the guiding straight groove 915, the top block 911 can be lifted first, and the lifted height of the top block 911 can be maintained.

[0053] At this time, a clamping groove 917 is formed in the top of the top block 911. A third spring 918 is fixedly connected to the inner wall of the clamping groove 917. The other end of the third spring 918 is fixedly connected to a clamping block 919. The outer wall of the clamping block 919 is in sliding fit with the inner wall of the clamping groove 917. Therefore, when the top block 911 rises, the clamping block 919 can be clamped into the ratchet wheel 908, so that the sliding rod one 803 can be restricted and the sliding rod one 803 cannot retract. When in a strong environmental external force, when the connecting plate 705 is at the highest point, when the arc-shaped bent plate 4 swings at this time, since the ratchet wheel 908 cannot rotate back, the maximum pressing force of the matching clamping plate 703 can be maintained without change. When the environmental external force is calm, when the arc-shaped bent plate 4 returns to the initial position, the fitting rod two 901 will follow and return to the initial position. At this time, the top block 911 is driven to descend under the drive of the guiding inclined groove 916, so as to release the locking of the ratchet wheel 908, so that the ratchet wheel 908 can rotate. At this time, the sliding rod one 803 can return to its position under the drive of the first spring 802, thus avoiding the unnecessary wear and fatigue of the wire caused by the continuous repetition of the pressing and loosening steps of the matching clamping plate 703. Further, during the sliding process of the sliding rod one 803, the sliding rod one 803 will be restricted by the side wall of the mounting plate 905 close to the fixing frame 909, so as to ensure the stability of the sliding rod one 803 during the sliding process.

[0054] As described above, when the wire is subjected to environmental external forces and the arc-shaped bent plate 4 moves, the second fitting rod 901 can be driven to move synchronously. Thus, through the cooperation of the gear teeth 806 and the ratchet wheel 908, it is possible to ensure that the maximum pressing force of the fitting clamp plate 703 remains unchanged, avoiding unnecessary wear and fatigue of the wire caused by the continuous change of the extrusion force on the arc-shaped bent plate 4 when the wire sways under the action of wind, and enhancing the stability of the use of this fixture.

[0055] Working principle: First, when installing wires of different specifications, the wire is first passed through the wedge-shaped chute 2 of the wire clamp body 1, and then the wire is fixed to the wedge block body 3 through the clamp block of the wedge block body 3. Then, by rotating the rotating handle 708, the adjusting seat 701 is driven to move up and down, so that the adjusting seat 701 can drive the fitting clamp plate 703 to move synchronously. At this time, the fitting clamp plate 703 and the wedge block body 3 can cooperate with each other to clamp wires of different specifications. At the same time, when the fitting clamp plate 703 rises to clamp a wire with a small diameter, the first fitting rod 10 will be driven to rise synchronously. Through the setting of the pull rod 712, when the support plate 6 rises, it will slide away from the arc-shaped bent plate 4 synchronously, causing the arc-shaped bent plate 4 to rotate counterclockwise and increasing the bending radian, so that it can match the wire with a small diameter. Similarly, when the fitting clamp plate 703 descends to clamp a wire with a large diameter, the bending radian will become smaller, thus realizing synchronous adjustment of the angle of the arc-shaped bent plate 4, so that the surface of the arc-shaped bent plate 4 can be kept in mutual fit with wires of different specifications;

[0056] Then, when the wire is subjected to environmental external forces, the wire will be tightened, thereby being able to extrude the arc-shaped bent plate 4 in contact with it. Thus, the movement of the arc-shaped bent plate 4 can be used to drive the first fitting rod 10 to move, and then the first fitting rod 10 can be used to drive the first sliding rod 803 to move, further driving a plurality of extrusion blocks 804 to extrude the extrusion groove 805 of the connecting plate 705. The cooperation between the extrusion block 804 and the extrusion groove 805 can be used to enable the connecting plate 705 to drive the fitting clamp plate 703 to rise, forming a cooperation with the moving wedge block body 3 itself to radially press the surface of the wire synchronously and disperse the pressing force. When the environmental external force is calm, the wire will no longer be subjected to environmental external forces, and the extrusion force applied to the arc-shaped bent plate 4 will become smaller. Thus, the spring 802 can be used to drive the fitting clamp plate 703 back to its original position, ensuring that a lower pressing force can be maintained when not under external force, and avoiding fatigue and damage of the wire caused by long-term high-strength pressing;

[0057] Next, when the wire is subjected to relatively strong environmental external forces, first, under normal circumstances, the fitting rod one 10 and the fitting rod two 901 will synchronously fit with the surface of the arc-shaped bent plate 4, that is, when the arc-shaped bent plate 4 squeezes the fitting rod one 10, it will synchronously squeeze the fitting rod two 901. When the fitting rod one 10 moves, it will drive the gear 907 to rotate through the teeth 806 on the slide rod one 803, and then synchronously drive the ratchet 908 to rotate. When the fitting rod two 901 moves, it can synchronously drive the slide rod two 904 to pass through and move inside the fixed frame 909. At this time, through the cooperation of the sliding column 914 with the guiding inclined groove 916 and the guiding straight groove 915, the top block 911 can be lifted first and the lifting height of the top block 911 can be maintained. Thus, the clamping block 919 can be inserted into the ratchet 908 through the rising of the top block 911, so as to be able to limit the slide rod one 803 and make the slide rod one 803 unable to retract;

[0058] When the connecting plate 705 is at the highest point under strong environmental external forces, when the arc-shaped bent plate 4 swings at this time, since the ratchet 908 cannot rotate back, the maximum pressing force of the cooperating clamping plate 703 can be maintained without change. When the environmental external force is calm and the arc-shaped bent plate 4 returns to the initial position at this time, the fitting rod two 901 will follow back to the original position. Thus, under the drive of the guiding inclined groove 916, the top block 911 is driven to descend, so as to release the locking of the ratchet 908 and enable the ratchet 908 to rotate. At this time, the slide rod one 803 can return to its position under the drive of the spring one 802, thus avoiding the unnecessary wear and fatigue of the wire caused by the continuous repetition of the pressing and loosening steps of the cooperating clamping plate 703.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead clamp for electrical installation, comprising a clamp body (1), a wedge-shaped chute (2), a wedge block body (3), and an arc-shaped bent plate (4), characterized in that: A cavity (5) is formed in the lower inner wall of the wedge-shaped sliding groove (2), and a support plate (6) is slidably connected to the inner wall of the cavity (5); A wire adapter component (7) is arranged on the top of the support plate (6) to clamp and fit wires of different specifications during wire installation; The wire adapter component (7) includes an adjustment seat (701), and the outer wall of the adjustment seat (701) is in sliding fit with the inner wall of the cavity (5). The top of the adjustment seat (701) is arc-shaped, and a first movable groove (702) is formed in the top of the adjustment seat (701). A matching clamping plate (703) is slidably connected to the inner wall of the first movable groove (702), and a second movable groove (704) is formed through the inner wall of the first movable groove (702). Two connecting plates (705) are fixedly connected to the lower surface of the matching clamping plate (703); A pressing and loosening component (8) is arranged on the top of the support plate (6). Two first fitting rods (10) are arranged on one side wall of the support plate (6) facing the arc-shaped bent plate (4). The pressing and loosening component (8) includes a first spring (802). A first groove (801) is formed at one end of the first fitting rod (10) facing the support plate (6). One end of the first spring (802) is fixedly connected to the inner wall of the first groove (801). A first sliding rod (803) is fixedly connected to one end of the first fitting rod (10) away from the arc-shaped bent plate (4). An extrusion block (804) is fixedly connected to the top of the first sliding rod (803). An extrusion groove (805) is formed at the bottom of the connecting plate (705) corresponding to the extrusion block (804). A tooth (806) is fixedly connected to the upper surface of one end of the first sliding rod (803) away from the first fitting rod (10); An auxiliary component (9) is provided on the top of the support plate (6). The auxiliary component (9) includes a second fitting rod (901), and a second groove (902) is formed at one end of the second fitting rod (901) facing the support plate (6). A second spring (903) is fixedly connected to the inner wall of the second groove (902). A second sliding rod (904) is fixedly connected to the end of the second fitting rod (901) away from the arc-shaped bent plate (4). Two mounting plates (905) are fixedly connected to the top of the support plate (6). A rotating rod (906) is rotatably connected to the side walls of the two mounting plates (905) close to each other. Two gears (907) are fixedly connected to the outer wall of the rotating rod (906). A ratchet wheel (908) is fixedly connected to the outer wall of the rotating rod (906). A fixing frame (909) is fixedly connected to the top of the support plate (6) corresponding to the second sliding rod (904). A second limiting groove (910) is formed through the top of the fixing frame (909), and a top block (911) is slidably connected to the inner wall of the second limiting groove (910) in a fitting manner. Two sliding blocks (912) are fixedly connected to the bottom of the top block (911). A fourth moving groove (913) is formed on the outer walls of both sides of the second sliding rod (904) corresponding to the sliding blocks (912). A sliding column (914) is fixedly connected to the side walls of the two sliding blocks (912) close to each other. A guiding straight groove (915) is formed on the inner wall of the fourth moving groove (913) corresponding to the sliding column (914), and a guiding inclined groove (916) is formed on the inner wall of the fourth moving groove (913) corresponding to the sliding column (914). A clamping groove (917) is formed on the top of the top block (911), and a third spring (918) is fixedly connected to the inner wall of the clamping groove (917). The other end of the third spring (918) is fixedly connected to a clamping block (919).

2. The lead wire clamp for electric power installation according to claim 1, characterized in that, The outer wall of the connecting plate (705) is slidably connected to the inner wall of the second moving groove (704). A screw rod (706) is rotatably connected to the bottom of the adjusting seat (701). A third moving groove (707) is formed through the top of the support plate (6) corresponding to the screw rod (706). The bottom of the screw rod (706) passes through the inside of the wire clamp body (1) and extends to the outside of the wire clamp body (1), and a rotating handle (708) is fixedly connected to the bottom of the screw rod (706). The outer wall of the screw rod (706) is threadedly connected to the inside of the wire clamp body (1).

3. The lead fixture for electrical installation according to claim 2, characterized in that, Two support rods (709) are fixedly connected to the top of the support plate (6). A first limiting groove (710) is formed on the bottom of the adjusting seat (701) corresponding to the support rods (709), and the top of the support rods (709) is T-shaped. The top of the support rods (709) is slidably connected to the inner wall of the first limiting groove (710) in a fitting manner. A limiting rod (711) is fixedly connected to the side walls of the two support rods (709) close to each other corresponding to the connecting plate (705), and the side walls of both sides of the connecting plate (705) are slidably connected to the side walls of the two limiting rods (711) close to each other.

4. The lead wire clamp for electrical installation according to claim 1, wherein The wedge-shaped chute (2) is opened at the middle position outside the clamp body (1). The wedge block body (3) is movably installed inside the wedge-shaped chute (2). The arc-shaped bent plate (4) is arranged on the front inner wall of the wedge-shaped chute (2).

5. The lead wire clamp for electrical installation according to claim 3, wherein, On the outer wall of one side of the support plate (6) away from the arc-shaped bent plate (4), a pull rod (712) is hinged, and the other end of the pull rod (712) is hinged to the inner wall of the cavity (5). A shaft rod (713) is fixedly connected inside the arc-shaped bent plate (4), and both ends of the shaft rod (713) are rotatably connected to the inner wall of the wedge-shaped chute (2). On the outer walls of both ends of the shaft rod (713), a return torsion spring (714) is arranged in a fitting manner. One end of the return torsion spring (714) is lapped on the outer wall of the shaft rod (713), and the other end of the return torsion spring (714) is lapped on the inner wall of the wedge-shaped chute (2).

6. The lead wire clamp for electrical installation according to claim 5, characterized in that, The inner wall of the first groove (801) is in sliding fit with the upper and lower surfaces of the support plate (6). The other end of the first spring (802) is fixedly connected to the outer wall of one side of the support plate (6). The bottom of the first sliding rod (803) is in sliding fit with the upper surface of the support plate (6). The upper surface of the extrusion block (804) is beveled.

7. The lead wire clamp for electrical installation according to claim 6, wherein, The first fitting rod (10) and the support plate (6) form a telescopic structure through the first spring (802), and the other end of the first fitting rod (10) is in contact with one side wall of the arc-shaped bent plate (4) through the first spring (802).

8. The lead wire clamp for electrical installation according to claim 7, characterized in that, The inner wall of the second groove (902) is in sliding fit with the outer wall of the support plate (6). The other end of the second spring (903) is fixedly connected to the outer wall of one side of the support plate (6). The bottom of the second sliding rod (904) is in sliding fit with the upper surface of the support plate (6). The bottom side of the gear (907) is in meshing fit with the teeth (806).

9. The lead fixture for electrical installation according to claim 8, characterized in that, One end of the second sliding rod (904) away from the arc-shaped bent plate (4) passes through one side wall of the fixed frame (909) and extends to the other side wall. The outer walls of the two sliding blocks (912) close to each other are in sliding fit with the inner wall of the fourth moving groove (913). The outer wall of the sliding column (914) is in sliding fit with the inner walls of the guiding straight groove (915) and the guiding inclined groove (916).

10. The lead wire clamp for electrical installation according to claim 9, characterized in that, The outer wall of the clamping block (919) is in sliding fit with the inner wall of the clamping groove (917).

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