Cable tensioning mechanism for power construction

Abstract

The utility model discloses a cable tensioning mechanism for power construction, and relates to the technical field of power construction. The winding device comprises a fixing plate, a supporting frame is fixedly connected to the upper side of the fixing plate, a winding roller is arranged on the upper side of the supporting frame, and a tightening mechanism matched with the winding roller is arranged on the upper side of the fixing plate. The upper side of the fixing plate is fixedly connected with a U-shaped frame, the inner wall of the U-shaped frame is rotatably matched with a linkage shaft, the linkage shaft is fixedly connected with a measuring roller, and the upper side of the U-shaped frame is provided with a wire locking mechanism. According to the utility model, through the arrangement of the pawl, when the cable is pulled outwards, the ratchet wheel is limited and counteraction is generated through the pawl, so that the cable cannot be withdrawn at the first time after being pulled out, a worker can measure or operate the cable after pulling out the cable conveniently, and the other end of the pulled-out cable does not need to be fixed; the condition that the cable can be automatically withdrawn after the drawn cable is loosened is avoided, and the convenience in the operation process is relatively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power construction, and in particular relates to a cable tensioning mechanism used in electric power construction. Background Art

[0002] Power construction refers to the corresponding construction of wires and cables. Among them, the essential part of the construction process is to release the wires from the wire rollers, also called wire laying. It is mainly for the convenience of workers to work and to be able to strictly follow the design drawings for construction. Since wire laying is a very important job, sufficient preparation and planning are required in the actual construction process. Wire laying is generally completed by professional electrical engineers or technicians, and usually the corresponding construction equipment is used for wire laying.

[0003] A Chinese patent with application number CN202121588348.9 discloses a tensioning device for cable payout, comprising a base, a pair of No. 1 brackets are fixedly installed at one end of the upper surface of the base, and the tops of the two No. 1 brackets are provided with card slots and cable winding rollers are provided between each other, and both ends of the cable winding rollers are fixedly connected with a rotating shaft, both ends of the rotating shaft are provided with a plurality of limit grooves, and the two rotating shafts are respectively stuck in the two card slots, and one side of the two No. 1 brackets is provided with a tensioning mechanism, and one end of the pull rope arranged in the tensioning mechanism is fixedly connected to a tension spring, and the tension spring is installed on the base.

[0004] The above technical solution sets a tensioning mechanism so that the cable winding roller always has a force in the opposite direction to the cable pulling direction, maintains a taut state, is convenient for measuring length, and is also convenient for automatic winding. However, in actual use, after the wire is pulled out, it is in a taut state, so the pulled end must find a fixed point, or one person measures while the other keeps pulling the cable, so as to avoid automatic contraction and measure the pulled cable. There are certain limitations, and during the measurement process, since the personnel can only judge how long the cable is pulled out based on experience, it is necessary to judge roughly whether the pulled length is close to the requirement during the defense process, which requires multiple attempts, affecting the efficiency of the defense line.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a cable tensioning mechanism for electric power construction.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A cable tensioning mechanism for electric power construction comprises a fixing plate, a support frame is fixedly connected to the upper side of the fixing plate, a winding roller is installed on the upper side of the support frame, and a tensioning mechanism matched with the winding roller is installed on the upper side of the fixing plate;

[0009] A U-shaped frame is fixedly connected to the upper side of the fixed plate, a linkage shaft is rotatably matched to the inner wall of the U-shaped frame, a measuring roller is fixedly connected to the linkage shaft, and a thread locking mechanism is installed on the upper side of the U-shaped frame;

[0010] A ratchet is fixedly connected to one side of the linkage shaft, a support plate is fixedly connected to one side of the U-shaped frame and located below the ratchet, a pawl is rotatably matched on the upper side of the support plate, a spring is installed between the pawl and the support plate, and a trigger plate is installed on one side of the ratchet;

[0011] A counting assembly is installed on one side of the U-shaped frame.

[0012] Optionally, in order to tighten the pulled out cable, the tensioning mechanism includes a movable groove opened on the upper side of the fixed plate, the inner wall of the movable groove is slidably fitted with a movable block, a tension spring installed between the movable groove and the movable block, a guide frame fixedly connected to the upper side of the fixed plate, and an elastic rope fixedly connected between the movable block and the winding roller.

[0013] Optionally, in order to fit the cable onto the measuring roller, the wire locking mechanism includes a hollow slot plate fixedly connected to the upper side of the U-shaped frame, a threaded rod rotatably engaged with the inner wall of the hollow slot plate, a lower pressure block threadedly engaged on the threaded rod and slidingly engaged with the inner wall of the hollow slot plate, and an extrusion ring rotatably engaged on one side of the lower pressure block.

[0014] Optionally, in order to measure the number of revolutions of the measuring roller, the counting assembly includes an extension plate fixedly connected to one side of the U-shaped frame, and a press counter fixedly connected to the upper side of the extension plate and cooperating with the trigger plate.

[0015] Optionally, in order to improve the smoothness of the trigger plate pressing the press counter, an auxiliary slide groove is opened at the lower end of the trigger plate, and the inner wall of the auxiliary slide groove is rotatably matched with a lubrication roller.

[0016] Optionally, in order to limit the press counter when not in use, one side of the extension plate is rotatably fitted with an L-shaped buckle, and one side of the inner wall of the L-shaped buckle is provided with anti-slip texture.

[0017] Optionally, in order to improve the convenience of placing the cable, an arc groove is provided on the measuring roller, and an anti-slip pad is provided on the inner wall of the arc groove.

[0018] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0019] 1. By providing the pawl 11, when the cable is pulled outward, the pawl can limit the ratchet 9 and react with 4, so that the cable will not be retracted immediately after being pulled out, which is convenient for personnel to measure or operate the cable after being pulled out. There is no need to fix the other end of the pulled-out cable, which avoids the situation where the cable is automatically retracted after the pulled-out cable is released, thereby relatively improving the convenience during operation.

[0020] 2. By setting a trigger rod, when the linkage shaft 6 rotates, the trigger plate 13 will be driven to rotate at the same time. When the trigger plate 13 rotates one circle, it will cause a knock on the counting component 14, so that the extension plate 141 in the counting component 14 counts once, and then the number of counts is multiplied by the number of circles of the measuring roller, so that the length of the cable pulled out can be calculated, saving the time of multiple attempts, thereby improving the efficiency of cable release.

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of a linkage shaft according to an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of a three-dimensional structure of a U-shaped frame according to an embodiment of the utility model;

[0026] Figure 4 For an embodiment of the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Fixed plate; 2. Support frame; 3. Winding roller; 4. Tensioning mechanism; 401. Movable groove; 402. Movable block; 403. Tension spring; 404. Guide frame; 405. Elastic rope; 5. U-shaped frame; 6. Linkage shaft; 7. Measuring roller; 8. Locking wire mechanism; 801. Empty groove plate; 802. Threaded rod; 803. Pressing block; 804. Extrusion ring; 9. Ratchet; 10. Support plate; 11. Ratchet; 12. Spring; 13. Trigger plate; 14. Counting assembly; 141. Extension plate; 142. Press counter; 15. Sliding groove; 16. Lubricating roller; 17. L-shaped buckle; 18. Arc groove.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] The utility model will now be further described in detail with reference to the accompanying drawings.

[0031] See also Figure 1-4 As shown, in this embodiment, a cable tensioning mechanism for electric power construction is provided, comprising a fixing plate 1, a support frame 2 is fixedly connected to the upper side of the fixing plate 1, a winding roller 3 is installed on the upper side of the support frame 2, and a tensioning mechanism 4 matched with the winding roller 3 is installed on the upper side of the fixing plate 1;

[0032] A U-shaped frame 5 is fixedly connected to the upper side of the fixed plate 1, and a linkage shaft 6 is rotatably matched to the inner wall of the U-shaped frame 5. A measuring roller 7 is fixedly connected to the linkage shaft 6. A thread locking mechanism 8 is installed on the upper side of the U-shaped frame 5;

[0033] A ratchet 9 is fixedly connected to one side of the linkage shaft 6, a support plate 10 is fixedly connected to one side of the U-shaped frame 5 and located below the ratchet 9, a ratchet 11 is rotatably matched on the upper side of the support plate 10, a spring 12 is installed between the ratchet 11 and the support plate 10, and a trigger plate 13 is installed on one side of the ratchet 9;

[0034] A counting assembly 14 is mounted on one side of the U-shaped frame 5 .

[0035] One aspect of the application of this embodiment is as follows: when in use, first fix the fixing plate 1 in a suitable position, then place the winding roller 3 equipped with the cable on the support frame 2, then fix the tensioning mechanism 4 and the winding roller 3, pass one end of the pay-off cable through the upper side of the measuring roller 7, and fix the cable by operating the locking mechanism 8 so that the cable is fixed above the measuring roller 7.

[0036] Then, in the process of pulling the cable, the elastic rope 405 is wound around the winding roller 3, and the guide frame 404 guides, so that the movable block 402 is pulled to expand the tension spring 403, so as to pull the winding roller 3, so that the pulled cable maintains the reaction force, and the wire is tightened, and its principle is similar to that of the comparative document;

[0037] When the cable is pulled, since it is fixed inside the measuring roller 7, the measuring roller 7 will be driven to rotate when pulled, and the measuring roller 7 will then drive the linkage shaft 6 and the ratchet 9 to rotate. When the ratchet 9 rotates, the pawl 11 will be squeezed, and the spring 12 will shrink. After pulling a similar distance, the wire can be directly released, and the pawl 11 is inserted into the ratchet 9 to achieve fixation. After releasing, the length can be detected or the cable can be cut off. It will not automatically retract. If it is pulled too long, the pawl 11 can be pressed to separate from the ratchet 9, and the cable can be retracted under the action of the tensioning mechanism 4;

[0038] When the linkage shaft 6 rotates, the trigger plate 13 is also driven to rotate. After the trigger plate 13 rotates one circle, it will knock the counting component 14, so that the extension plate 141 in the counting component 14 is counted once. The measuring roller 7 can be set to different diameters. For example, the length of the outer ring of the measuring roller 7 is 50 cm. When it is counted twice, the cable is pulled for one meter, so that the length of the cable can be calculated, which improves the convenience of measurement. The press counter 142 can be a commonly used press-type finger counter.

[0039] The tensioning mechanism 4 of this embodiment includes a movable groove 401 opened on the upper side of the fixed plate 1, the inner wall of the movable groove 401 is slidably matched with a movable block 402, a tension spring 403 installed between the movable groove 401 and the movable block 402, a guide frame 404 fixedly connected to the upper side of the fixed plate 1, and an elastic rope 405 fixedly connected between the movable block 402 and the winding roller 3. The elastic rope 405 is fixed to one end of the support frame 2. When the support frame 2 rotates, it is guided by the guide frame 404, and the elastic rope 405 will be wound around the support frame 2, and pull the movable block 402, so that the tension spring 403 expands, so that the support frame 2 is straightened.

[0040] The wire locking mechanism 8 of this embodiment includes a hollow slot plate 801 fixedly connected to the upper side of the U-shaped frame 5, a threaded rod 802 rotatably engaged with the inner wall of the hollow slot plate 801, a pressing block 803 threadedly engaged on the threaded rod 802 and slidingly engaged with the inner wall of the hollow slot plate 801, and an extrusion ring 804 rotatably engaged on one side of the pressing block 803. The threaded rod 802 is rotated to push the pressing block 803 downward, thereby driving the extrusion ring 804 to squeeze and fix the cable on the upper side of the measuring roller 7.

[0041] The counting assembly 14 of this embodiment includes an extension plate 141 fixedly connected to one side of the U-shaped frame 5, and a press counter 142 fixedly connected to the upper side of the extension plate 141 and matched with the trigger plate 13. When the trigger plate 13 rotates, the press counter 142 can be squeezed to realize the counting operation.

[0042] The trigger plate 13 of this embodiment has a sliding groove 15 at its lower end, and a lubrication roller 16 is rotatably provided on the inner wall of the sliding groove 15. When the trigger plate 13 rotates, the lubrication roller 16 contacts the pressing part of the press counter 142 to realize the counting operation, thereby improving the smoothness of the contact with the press counter 142.

[0043] One side of the extension plate 141 of the present embodiment is rotatably fitted with an L-shaped buckle 17, and one side of the inner wall of the L-shaped buckle 17 is provided with anti-slip grooves. The L-shaped buckle 17 is convenient for limiting the pressed part of the pressing counter 142 by rotating the L-shaped buckle 17 when the counter 142 is not in use, so that it cannot be released from the trigger plate 13.

[0044] The measuring roller 7 of this embodiment is provided with an arc groove 18, and an anti-skid pad is provided on the inner wall of the arc groove 18. The arc groove 18 is convenient for placing the cable, and the anti-skid pad increases the friction between the cable and the measuring roller 7.

[0045] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A cable tensioning mechanism for electric power construction, characterized in that: include: A fixed plate (1), the upper side of the fixed plate (1) is fixedly connected to a support frame (2), the upper side of the support frame (2) is provided with a winding roller (3), and the upper side of the fixed plate (1) is provided with a tensioning mechanism (4) that matches the winding roller (3); A U-shaped frame (5) is fixedly connected to the upper side of the fixed plate (1); a linkage shaft (6) is rotatably matched to the inner wall of the U-shaped frame (5); a measuring roller (7) is fixedly connected to the linkage shaft (6); and a thread locking mechanism (8) is installed on the upper side of the U-shaped frame (5); A ratchet (9) is fixedly connected to one side of the linkage shaft (6); a support plate (10) is fixedly connected to one side of the U-shaped frame (5) and located below the ratchet (9); a ratchet pawl (11) is rotatably engaged on the upper side of the support plate (10); a spring (12) is installed between the ratchet pawl (11) and the support plate (10); and a trigger plate (13) is installed on one side of the ratchet (9); A counting assembly (14) is installed on one side of the U-shaped frame (5).

2. A cable tensioning mechanism for electric power construction according to claim 1, characterized in that: The tensioning mechanism (4) comprises a movable groove (401) provided on the upper side of the fixed plate (1), a movable block (402) slidably fitted on the inner wall of the movable groove (401), a tension spring (403) installed between the movable groove (401) and the movable block (402), a guide frame (404) fixedly connected to the upper side of the fixed plate (1), and an elastic rope (405) fixedly connected between the movable block (402) and the winding roller (3).

3. A cable tensioning mechanism for electric power construction according to claim 1, characterized in that: The thread locking mechanism (8) comprises a hollow slot plate (801) fixedly connected to the upper side of the U-shaped frame (5), a threaded rod (802) rotatably engaged with the inner wall of the hollow slot plate (801), a lower pressing block (803) threadedly engaged with the threaded rod (802) and slidably engaged with the inner wall of the hollow slot plate (801), and an extrusion ring (804) rotatably engaged with one side of the lower pressing block (803).

4. A cable tensioning mechanism for electric power construction according to claim 1, characterized in that: The counting assembly (14) comprises an extension plate (141) fixedly connected to one side of the U-shaped frame (5), and a pressing counter (142) fixedly connected to the upper side of the extension plate (141) and matched with the trigger plate (13).

5. A cable tensioning mechanism for electric power construction according to claim 1, characterized in that: An auxiliary sliding groove (15) is provided at the lower end of the trigger plate (13), and a lubrication roller (16) is rotatably matched on the inner wall of the auxiliary sliding groove (15).

6. A cable tensioning mechanism for electric power construction according to claim 4, characterized in that: One side of the extension plate (141) is rotatably matched with an L-shaped buckle (17), and one side of the inner wall of the L-shaped buckle (17) is provided with anti-slip patterns.

7. A cable tensioning mechanism for electric power construction according to claim 1, characterized in that: An arc-shaped groove (18) is provided on the measuring roller (7), and an anti-slip pad is provided on the inner wall of the arc-shaped groove (18).

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