Steel cable tensioning device for bridge construction

Abstract

The utility model discloses a steel cable tensioning device for bridge construction, which comprises a support block, the inside of the support block is rotatably connected with a synchronizing shaft, the left end of the synchronizing shaft penetrates and extends to the left side of the support block, the left side of the support block is fixedly connected with a bottom plate, the top of the bottom plate is slidably connected with a movable seat, and the movable seat is fixedly connected with the support block. And the right side of the moving seat is fixedly connected with a threaded sleeve. According to the steel cable clamping device, the transverse position of the movable clamping plate can be adjusted through matched use of the synchronizing shaft and the threaded sleeve, so that steel cables of different specifications are clamped by matching with the fixed clamping plate, and rotation of the synchronizing shaft is driven by matching of the driving gear and the driven gear; the rotating difficulty of a user can be reduced by driving a pinion through a large gear, the movable clamping plate can be limited through cooperation of a clamping block and a reset spring to prevent the movable clamping plate from loosening, the bottom of the steel cable can be supported by arranging an auxiliary assembly, and the situation that the steel cable is displaced in the vertical direction in the clamping process, and the steel cable straightening effect is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of highway bridges, and more specifically to a steel cable tensioning device for bridge construction. Background Art

[0002] The development of bridge construction mainly depends on the needs of transportation. In ancient times, bridges were mainly used for people and livestock, and the load was not large. The longitudinal slope of the bridge deck could be steep, and even steps could be laid. After the heavy-loaded carriages were invented, the load gradually increased, and the longitudinal slope of the bridge deck had to be made gentle. At that time, the bridge materials were still mainly wood and stone, and cast iron and wrought iron were rarely used.

[0003] The traditional steel cable tensioning device has the problem that the steel cable is directly tightened without transition, which is prone to breakage, and the steel cable cannot be adjusted in tension, and the clamping cannot be adjusted according to the thickness of the steel cable.

[0004] Patent application number 202221299491.0 A cable tensioning device for bridge construction, comprising a support block, wherein the support block is internally rotatably connected to a rotating rod, the internal thread of the rotating rod is connected to a sliding rod, one end of the sliding rod is fixedly connected to a pressure block, the left side wall of the pressure block is fixedly connected to a right anti-skid pad, the right side wall of the support block is fixedly connected to the upper side wall of the left anti-skid pad and the lower side wall is fixedly connected to a limiting plate; a limiting frame is arranged inside the support block, the inner side wall of the limiting frame is provided with a plurality of slots, the outer side wall of the rotating rod is fixedly connected to the limiting slot, the inner side wall of the limiting slot is slidably connected to a matching ball, and a reset spring is arranged between the matching ball and the rotating rod. In the utility model, when the pressure block is loosened, the sliding frame will drive the rotating rod to rotate, and due to the action of the reset spring, the slot and the matching ball, the rotation of the rotating rod transmitted to the sliding frame can be greatly reduced, thereby playing an anti-loosening role.

[0005] This structure realizes the movement of the pressure block through the screw structure, and then can clamp steel cables of different specifications. However, in this structure, there are certain problems with the limitation of the spring and the matching ball. If the structure is to prevent the screw rod from rotating, the spring thrust needs to be relatively large, which makes it more difficult for the threaded rod to rotate in this structure. In addition, this structure clamps and straightens the steel cable on both sides, but the steel cable is in an inclined state and is prone to fluctuations in the vertical state. If it is not restricted, it may affect the straightening effect. Therefore, professionals in this field provide a steel cable tensioning device for bridge construction to solve the above-mentioned problems. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a steel cable tensioning device for bridge construction.

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] A cable tensioning device for bridge construction, comprising a support block, wherein the support block is internally rotatably connected with a synchronous shaft, the left end of the synchronous shaft penetrates and extends to the left side of the support block, the left side of the support block is fixedly connected with a base plate, the top of the base plate is slidably connected with a moving seat, the right side of the moving seat is fixedly connected with a threaded sleeve, the left end of the synchronous shaft is provided with uniformly distributed external threads, the threaded sleeve is threadedly connected to the synchronous shaft, the right side of the moving seat is fixedly connected with a moving clamping plate, the left side of the support block is fixedly connected with a fixed clamping plate, the moving clamping plate is located on the left side of the fixed clamping plate, an auxiliary component is arranged on the top of the base plate, a driven gear is fixedly connected to the synchronous shaft, the right side of the support block is rotatably connected with an adjusting shaft, the left end of the adjusting shaft penetrates and extends to the inside of the support block, the adjusting shaft is fixedly connected with a driving gear, the driving gear is located at the bottom of the driven gear and meshes with the driven gear, a return spring is fixedly connected to the inner wall of the support block, the other end of the return spring is fixedly connected with a clamping block, and the clamping block is clamped with the driving gear.

[0009] As a further description of the above technical solution: the auxiliary component includes an adjusting rod, which is rotatably connected to the bottom of the base plate, and a movable frame is threadedly connected to the adjusting rod. The top of the movable frame passes through and extends to the top of the base plate, and the top of the movable frame is hinged with a supporting rod.

[0010] As a further description of the above technical solution: the right end of the adjusting shaft is fixedly connected with a knob, and the knob is provided with evenly distributed angular grooves.

[0011] As a further description of the above technical solution: a guide groove is provided on the top of the bottom plate, and the movable seat is slidably connected to the inner wall of the guide groove.

[0012] As a further description of the above technical solution: a through slot is provided on the top of the bottom plate, and the movable frame is located inside the through slot and is slidably connected to the inner wall of the through slot.

[0013] As a further description of the above technical solution: the radius of the driven gear is smaller than the radius of the driving gear.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] In the utility model, the lateral position of the movable clamping plate can be adjusted by the cooperation of the synchronous shaft and the threaded sleeve, so as to cooperate with the fixed clamping plate to clamp steel cables of different specifications, and the rotation of the synchronous shaft is driven by the cooperation of the active gear and the driven gear, and the large gear can drive the small gear to reduce the difficulty of rotation for the user, and the cooperation of the clamping block and the reset spring can also limit the movable clamping plate to prevent it from loosening, and the bottom of the steel cable can be supported by setting an auxiliary component to prevent the steel cable from being displaced in the vertical direction during clamping and affecting the straightening effect of the steel cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the auxiliary component of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the support block of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Support block; 2. Synchronous shaft; 3. Bottom plate; 4. Moving seat; 5. Threaded sleeve; 6. Moving clamp; 7. Fixed clamp; 8. Auxiliary components; 801. Adjusting rod; 802. Movable frame; 803. Supporting rod; 9. Driven gear; 10. Adjusting shaft; 11. Driving gear; 12. Reset spring; 13. Block; 14. Knob; 15. Guide groove; 16. Through groove. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0023] See also Figures 1 to 4In the utility model, a steel cable tensioning device for bridge construction includes a support block 1, the support block 1 is internally rotatably connected with a synchronous shaft 2, the left end of the synchronous shaft 2 penetrates and extends to the left side of the support block 1, the left side of the support block 1 is fixedly connected with a bottom plate 3, the top of the bottom plate 3 is slidably connected with a moving seat 4, the right side of the moving seat 4 is fixedly connected with a threaded sleeve 5, the left end of the synchronous shaft 2 is provided with uniformly distributed external threads, the threaded sleeve 5 is threadedly connected to the synchronous shaft 2, the right side of the moving seat 4 is fixedly connected with a moving clamping plate 6, and the left side of the support block 1 is fixedly connected with a fixed clamping plate 7 , the movable splint 6 is located on the left side of the fixed splint 7, an auxiliary component 8 is provided on the top of the bottom plate 3, a driven gear 9 is fixedly connected to the synchronization shaft 2, an adjusting shaft 10 is rotatably connected to the right side of the support block 1, the left end of the adjusting shaft 10 penetrates and extends to the inside of the support block 1, a driving gear 11 is fixedly connected to the adjusting shaft 10, the driving gear 11 is located at the bottom of the driven gear 9 and meshes with the driven gear 9, a return spring 12 is fixedly connected to the inner wall of the support block 1, and a clamping block 13 is fixedly connected to the other end of the return spring 12, and the clamping block 13 is engaged with the driving gear 11;

[0024] The auxiliary component 8 includes an adjusting rod 801, which is rotatably connected to the bottom of the bottom plate 3, and a movable frame 802 is threadedly connected to the adjusting rod 801. The top of the movable frame 802 penetrates and extends to the top of the bottom plate 3, and a supporting rod 803 is hinged to the top of the movable frame 802.

[0025] A through slot 16 is formed on the top of the bottom plate 3, and the movable frame 802 is located inside the through slot 16 and is slidably connected to the inner wall of the through slot 16;

[0026] The radius of the driven gear 9 is smaller than the radius of the driving gear 11 .

[0027] The user places the steel cable on the left side of the support block 1, and the steel cable is on the side opposite to the movable clamping plate 6 and the fixed clamping plate 7. The user then rotates and adjusts, and the driving gear 11 fixedly connected to the adjusting shaft 10 rotates synchronously. The clockwise rotating teeth press the inclined surface of the clamping block 13 to push the clamping block 13 downward, and the reset spring 12 contracts and generates an opposite force, and the driven gear 9 with a smaller top radius will rotate with the push of the driving gear 11, driving the synchronous shaft 2 to rotate accordingly. The threaded sleeve 5 starts to move to the left through the setting of the external thread, and the moving seat 4 moves with the movable clamping plate 6 toward the steel cable. The driving gear 11 has a larger radius and pushes the driven gear 9 to rotate, which can reduce the difficulty of rotation. With the continuous rotation, the movable clamping plate 6 contacts the steel cable and cooperates with the fixed clamping plate 7 to push the steel cable. The cable is clamped, and then the user rotates the adjusting rod 801, and the movable frame 802 threadedly connected to the adjusting rod 801 moves upward inside the through slot 16, so that the supporting rod 803 on its top begins to move upward accordingly, and the supporting rod 803 in the hinged state will tilt when it contacts the bottom of the steel cable. As the movable frame 802 continues to move upward, the supporting rod 803 will be completely fitted with the steel cable, so that the bottom of the steel cable can be supported to a certain extent. After the rotation of the adjusting shaft 10 stops, the block 13 limits the driving gear 11, so that the driving gear 11 cannot rotate counterclockwise, thereby keeping the movable splint 6 stable and not easy to loosen. When it is necessary to release the clamping of the steel cable, the user pulls the block 13 to separate it from the driving gear 11, and then the adjusting shaft 10 can be rotated in the opposite direction.

[0028] In the utility model, the lateral position of the movable clamping plate 6 can be adjusted by the coordinated use of the synchronous shaft 2 and the threaded sleeve 5, so as to cooperate with the fixed clamping plate 7 to clamp steel cables of different specifications, and the rotation of the synchronous shaft 2 is driven by the coordinated use of the driving gear 11 and the driven gear 9. The large gear can drive the small gear to reduce the difficulty of rotation for the user. The coordination of the clamping block 13 and the reset spring 12 can also limit the movable clamping plate 6 to prevent it from loosening. By setting the auxiliary component 8, the bottom of the steel cable can be supported to prevent the steel cable from being displaced in the vertical direction during clamping, which affects the straightening effect of the steel cable.

[0029] See also Figure 4 , wherein: the right end of the adjusting shaft 10 is fixedly connected with a knob 14 , and the knob 14 is provided with evenly distributed angular grooves.

[0030] In the utility model, when the user needs to rotate the adjustment shaft 10, the knob 14 can provide a good fulcrum for the user, and the setting of the angle groove can facilitate the user to use tools to rotate the adjustment shaft 10, thereby improving the clamping degree of the movable clamp 6 on the steel cable.

[0031] See also Figure 1 and 2, wherein: a guide groove 15 is opened on the top of the bottom plate 3, and the movable seat 4 is slidably connected to the inner wall of the guide groove 15.

[0032] In the present invention, the setting of the guide groove 15 can limit the movable seat 4, so that the movable seat 4 is always located on the top of the bottom plate 3 to maintain stable movement in the horizontal direction.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A steel cable tensioning device for bridge construction, comprising a support block (1), characterized in that: The support block (1) is internally rotatably connected to a synchronous shaft (2), the left end of the synchronous shaft (2) penetrates and extends to the left side of the support block (1), the left side of the support block (1) is fixedly connected to a base plate (3), the top of the base plate (3) is slidably connected to a moving seat (4), the right side of the moving seat (4) is fixedly connected to a threaded sleeve (5), the left end of the synchronous shaft (2) is provided with uniformly distributed external threads, the threaded sleeve (5) is threadedly connected to the synchronous shaft (2), the right side of the moving seat (4) is fixedly connected to a moving clamping plate (6), the left side of the support block (1) is fixedly connected to a fixed clamping plate (7), and the moving clamping plate (6) is located at the fixed clamping plate (7). On the left side, an auxiliary component (8) is arranged on the top of the base plate (3), a driven gear (9) is fixedly connected to the synchronization shaft (2), an adjustment shaft (10) is rotatably connected to the right side of the support block (1), the left end of the adjustment shaft (10) penetrates and extends into the interior of the support block (1), a driving gear (11) is fixedly connected to the adjustment shaft (10), the driving gear (11) is located at the bottom of the driven gear (9) and meshes with the driven gear (9), a return spring (12) is fixedly connected to the inner wall of the support block (1), the other end of the return spring (12) is fixedly connected to a clamping block (13), and the clamping block (13) is clamped with the driving gear (11).

2. A steel cable tensioning device for bridge construction according to claim 1, characterized in that: The auxiliary component (8) comprises an adjusting rod (801), the adjusting rod (801) is rotatably connected to the bottom of the base plate (3), a movable frame (802) is threadedly connected to the adjusting rod (801), the top end of the movable frame (802) passes through and extends to the top of the base plate (3), and a supporting rod (803) is hinged to the top of the movable frame (802).

3. The steel cable tensioning device for bridge construction according to claim 1, characterized in that: The right end of the adjustment shaft (10) is fixedly connected with a knob (14), and the knob (14) is provided with evenly distributed angular grooves.

4. The steel cable tensioning device for bridge construction according to claim 1, characterized in that: A guide groove (15) is provided on the top of the bottom plate (3), and the movable seat (4) is slidably connected to the inner wall of the guide groove (15).

5. The steel cable tensioning device for bridge construction according to claim 2, characterized in that: A through slot (16) is provided on the top of the bottom plate (3), and the movable frame (802) is located inside the through slot (16) and is slidably connected to the inner wall of the through slot (16).

6. The steel cable tensioning device for bridge construction according to claim 1, characterized in that: The radius of the driven gear (9) is smaller than the radius of the driving gear (11).

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