Cable tightening device

Abstract

The utility model relates to the technical field of electric power engineering cable laying, and discloses a cable tightening device, which comprises a main body frame, a fixed rod fixedly connected with the main body frame, a guide ring fixed at the end part of the fixed rod, a tightening roller for winding and tightening a cable, and an auxiliary bearing for realizing movable connection between the tightening roller and the main body frame, an insertion hole is formed in the tightening roller, and a clamping assembly and an operation assembly are further arranged on the main body frame; the clamping assembly comprises a clamping plate used for clamping the cable, a connecting cylinder fixedly connected with the clamping plate, a connecting nut fixedly installed in the connecting cylinder, and a threaded rod in threaded connection with the connecting nut. According to the cable tightening device, the clamping assembly is arranged on the tightening roller, so that after the end of the cable is inserted into the tightening roller, the end of the cable can be quickly clamped and fixed to the tightening roller through the clamping plate in the clamping assembly, the operation steps of the whole device are simplified, and the tightening efficiency of the whole device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power engineering cable laying, in particular to a cable tightening device. Background Art

[0002] Cable tensioning devices are mainly used to apply tension to cables to achieve a predetermined tightness. They are widely used in cable construction in the fields of electricity, communications, transportation, etc. They can effectively improve construction efficiency and ensure the tightening effect of cables.

[0003] When using a traditional cable tensioning device, the connection steps between the cable and the device are relatively complicated. The cable end needs to be wrapped around the device and then tied before the use requirements of the tensioning device can be met. The overall device efficiency is low. For this reason, we propose a cable tensioning device to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a cable tightening device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: a cable tightening device, comprising: a main frame, a fixing rod fixedly connected to the main frame, a guide ring fixed to the end of the fixing rod, a tightening roller for winding the cable tightening wire, and an auxiliary bearing for realizing a movable connection between the tightening roller and the main frame, the tightening roller is provided with a socket, and the main frame is also provided with a clamping assembly and an operating assembly; the clamping assembly comprises a clamping plate for clamping the cable, a connecting cylinder fixedly connected to the clamping plate, a connecting nut fixedly installed inside the connecting cylinder, a threaded rod threadedly connected to the connecting nut, a tightening roller rotatably arranged inside the tightening roller and fixed to the threaded rod A transmission shaft connected in a fixed manner, a mounting plate fixedly mounted on the transmission shaft, a connecting rod slidably arranged inside the transmission shaft, a sliding rod fixed on the connecting rod, a stop ring fixedly connected to the sliding rod, a return spring fixedly connected to the stop ring and the mounting plate at both ends, and a knob fixedly mounted on the end surface of the connecting rod; the operating component includes a connecting shaft rotatably arranged on the main frame and fixedly connected to the tightening roller, a turntable fixedly mounted on the end surface of the connecting shaft, a circular shaft rotatably connected to the turntable, an extension rod fixedly connected to the circular shaft, a receiving groove provided on the turntable, and a return torsion spring fixedly connected to the circular shaft and the turntable at both ends.

[0006] Preferably, the clamping plate is slidably connected to the tightening roller, and the clamping plate is located below the insertion hole.

[0007] Preferably, a sliding groove for passing the sliding rod is provided on the transmission shaft, and both ends of the sliding groove are sealed.

[0008] Preferably, friction patterns are provided on the side surfaces of the stop ring for enhancing the friction force between the stop ring and the tightening roller.

[0009] Preferably, holes for passing the transmission shaft and the connecting rod are formed on the side walls of the main frame.

[0010] Preferably, the knob is located on the end of the connecting rod passing through the main frame, and anti-slip grooves are provided on the knob.

[0011] Preferably, a limit block is provided on the end of the threaded rod located at the connecting cylinder.

[0012] Preferably, the accommodating groove is provided with an expansion groove for accommodating a finger.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The cable tightening device is provided with a clamping assembly on the tightening roller. Therefore, after the cable end is inserted into the tightening roller, the clamping plate in the clamping assembly can be used to quickly clamp the cable end and fix it on the tightening roller, thereby simplifying the operation steps of the entire device and improving the tightening efficiency of the entire device.

[0015] 2. The cable tightening device is connected to the tightening roller by setting an operating component, and the torque when the turntable rotates is increased through the turntable and the extension rod. The user can drive the tightening roller to rotate in a more labor-saving manner to facilitate the tightening of the cable. At the same time, the extension rod can also be stored in the receiving slot on the turntable, making the overall device structure more concise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0018] Figure 3 This is an exploded view of the circular axis structure of the utility model;

[0019] Figure 4 This is an exploded view of the take-up roller structure of the utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the take-up roller and connecting tube structure of the utility model;

[0021] Figure 6 This is a schematic cross-sectional view of the transmission shaft structure of the present invention.

[0022] In the figure: 1. Main frame; 2. Fixed rod; 3. Guide ring; 4. Take-up roller; 41. Socket; 5. Auxiliary bearing; 6. Operating assembly; 61. Turntable; 62. Extension rod; 63. Receiving groove; 64. Round shaft; 65. Reset torsion spring; 66. Connecting shaft; 7. Clamping assembly; 71. Knob; 72. Transmission shaft; 73. Connecting rod; 74. Stop ring; 75. Reset spring; 76. Mounting plate; 77. Threaded rod; 78. Connecting nut; 79. Connecting cylinder; 710. Clamping plate; 711. Sliding rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-6 A cable tightening device includes: a main frame 1, a fixing rod 2 fixedly connected to the main frame 1, a guide ring 3 fixed to the end of the fixing rod 2, a tightening roller 4 for winding the cable tightening wire, and an auxiliary bearing 5 for realizing a movable connection between the tightening roller 4 and the main frame 1. The tightening roller 4 is provided with an insertion hole 41, and the main frame 1 is also provided with a clamping component 7 and an operating component 6.

[0025] The clamping assembly 7 includes a clamping plate 710 for clamping the cable, a connecting tube 79 fixedly connected to the clamping plate 710, a connecting nut 78 fixedly installed inside the connecting tube 79, a threaded rod 77 threadedly connected to the connecting nut 78, a transmission shaft 72 rotatably arranged inside the take-up roller 4 and fixedly connected to the threaded rod 77, a mounting plate 76 fixedly mounted on the transmission shaft 72, a connecting rod 73 slidably arranged inside the transmission shaft 72, a slide bar 711 fixed on the connecting rod 73, a stop ring 74 fixedly connected to the slide bar 711, a return spring 75 fixedly connected at both ends to the stop ring 74 and the mounting plate 76 respectively, and a knob 71 fixedly mounted on the end face of the connecting rod 73; the clamping plate 710 is slidably connected to the take-up roller 4, and the clamping assembly 7 includes a clamping plate 710 and a connecting tube 79 fixedly installed inside the take-up roller 4, and a threaded rod 77 threadedly connected to the threaded rod 77 The plate 710 is located below the socket 41, and a sliding groove is provided on the transmission shaft 72 for passing the sliding rod 711. The two ends of the sliding groove are sealed. The side of the stop ring 74 is provided with friction grooves for enhancing the friction between the tightening roller 4. The side wall of the main frame 1 is provided with holes for passing the transmission shaft 72 and the connecting rod 73. The knob 71 is located on the end of the connecting rod 73 passing through the main frame 1, and the knob 71 is provided with anti-slip grooves to prevent the user from slipping, so as to improve the performance of the structure. The threaded rod 77 is located on the end of the connecting tube 79 and a limit block is provided. Such designs can avoid the phenomenon of separation between the threaded rod 77 and the connecting tube 79, and further ensure the stability of the overall structural connection relationship.

[0026] The operating component 6 includes a connecting shaft 66 rotatably set on the main frame 1 and fixedly connected to the tightening roller 4, a turntable 61 fixedly installed on the end surface of the connecting shaft 66, a circular shaft 64 rotatably connected to the turntable 61, an extension rod 62 fixedly connected to the circular shaft 64, a receiving groove 63 provided on the turntable 61, and a return torsion spring 65 fixedly connected to the circular shaft 64 and the turntable 61 at both ends respectively. An expansion groove for accommodating a finger is provided on the receiving groove 63 to facilitate the user to remove the extension rod 62 from the inside of the receiving groove 63 to facilitate actual operation.

[0027] Working principle: the guide ring 3 is fixed to the main frame 1 through the fixing rod 2, and the take-up roller 4 is movably connected to the main frame 1 by the auxiliary bearing 5. When tightening the cable, the end of the cable is passed through the guide ring 3 and then inserted into the jack 41 in the take-up roller 4. Then, the knob 71 is pushed, and the connecting rod 73 fixedly connected to the knob 71 slides inside the transmission shaft 72. The connecting rod 73 is fixedly connected to the stop ring 74 through the slide rod 711. Therefore, after the connecting rod 73 is pushed with the knob 71, the stop ring 74 will not contact the take-up roller 4, and the rotation is set on the take-up roller. 4, the transmission shaft 72 rotates as the knob 71 rotates, and the threaded rod 77 fixed on the transmission shaft 72 is threadedly connected to the connecting nut 78 fixed inside the connecting cylinder 79, and the connecting cylinder 79 is fixedly connected to the clamping plate 710 slidingly set inside the take-up roller 4. After the transmission shaft 72 rotates, the threaded rod 77 rotates synchronously, thereby driving the connecting nut 78, the connecting cylinder 79 and the clamping plate 710 to slide toward the cable inside the jack 41, so as to clamp the end of the cable inside the jack 41. Then, after loosening the knob 71, the ends of the cable are respectively connected to the mounting plate 76. The locking cam 74 is engaged with the locking cam 76 and the engagement of the locking cam 76 with the engagement of the guide rail 72. The locking cam 76 is engaged with the locking cam 76 and the engagement of the guide rail 72 with the engagement of the guide rail 76. The movable connection allows the extension rod 62 to be rotated so that the extension rod 62 is disengaged from the accommodating groove 63 on the turntable 61, and the connection end of the extension rod 62 and the turntable 61 is located on the side of the center of the turntable 61. At this time, the turntable 61 can be driven to rotate by the extension rod 62, and then the connecting shaft 66 and the take-up roller 4 rotate synchronously, so that the cable is wound around the take-up roller 4 to achieve the purpose of cable tightening. After the extension rod 62 is loosened, the extension rod 62 is rotated back into the accommodating groove 63 again under the action of the return torsion spring 65 fixedly connected to the round shaft 64 and the turntable 61 at both ends.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable tightening device, characterized in that: include: A main frame (1), a fixing rod (2) fixedly connected to the main frame (1), a guide ring (3) fixed to the end of the fixing rod (2), a take-up roller (4) for winding a cable to tighten the wire, and an auxiliary bearing (5) for realizing a movable connection between the take-up roller (4) and the main frame (1), wherein the take-up roller (4) is provided with an insertion hole (41), and the main frame (1) is further provided with a clamping assembly (7) and an operating assembly (6); The clamping assembly (7) comprises a clamping plate (710) for clamping the cable, a connecting tube (79) fixedly connected to the clamping plate (710), a connecting nut (78) fixedly installed inside the connecting tube (79), a threaded rod (77) threadedly connected to the connecting nut (78), a transmission shaft (72) rotatably arranged inside the take-up roller (4) and fixedly connected to the threaded rod (77), a mounting plate (76) fixedly mounted on the transmission shaft (72), a connecting rod (73) slidably arranged inside the transmission shaft (72), a sliding rod (711) fixed on the connecting rod (73), a stop ring (74) fixedly connected to the sliding rod (711), a return spring (75) fixedly connected at both ends to the stop ring (74) and the mounting plate (76), and a knob (71) fixedly mounted on the end surface of the connecting rod (73); The operating assembly (6) comprises a connecting shaft (66) rotatably mounted on the main frame (1) and fixedly connected to the tightening roller (4), a turntable (61) fixedly mounted on the end surface of the connecting shaft (66), a circular shaft (64) rotatably connected to the turntable (61), an extension rod (62) fixedly connected to the circular shaft (64), a receiving groove (63) provided on the turntable (61), and a return torsion spring (65) having two ends fixedly connected to the circular shaft (64) and the turntable (61), respectively.

2. A cable tightening device according to claim 1, characterized in that: The clamping plate (710) is slidably connected to the tightening roller (4), and the clamping plate (710) is located below the insertion hole (41).

3. A cable tightening device according to claim 1, characterized in that: The transmission shaft (72) is provided with a sliding groove for passing the sliding rod (711), and both ends of the sliding groove are sealed.

4. A cable tightening device according to claim 1, characterized in that: The side surface of the stop ring (74) is provided with friction patterns for enhancing the friction force between the stop ring (74) and the tightening roller (4).

5. The cable tightening device according to claim 1, characterized in that: The side wall of the main frame (1) is provided with holes for passing the transmission shaft (72) and the connecting rod (73).

6. A cable tightening device according to claim 5, characterized in that: The knob (71) is located on the end of the connecting rod (73) passing through the main frame (1), and anti-slip grooves are provided on the knob (71).

7. The cable tightening device according to claim 1, characterized in that: A limit block is provided on the end of the threaded rod (77) located on the connecting cylinder (79).

8. The cable tightening device according to claim 1, characterized in that: The accommodating groove (63) is provided with an expansion groove for accommodating a finger.

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