Ratchet wrench for adjusting cable force of bridge
By designing a ratchet wrench for cable adjustment with notched bridges, combined with pawls, return springs and notched gear structures, the problem of time-consuming and labor-intensive operation of existing wrench on cable nuts is solved, and a faster and labor-saving cable adjustment is achieved. operate.
Patent Information
- Application Number
- CN202420866528.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The existing ratchet wrench is a closed structure and cannot be used when the cable type is obstructed by wire ropes, which makes it time-consuming and labor-intensive to operate in the bridge cable adjustment force, and requires repeated disengagement and insertion of nuts.
A ratchet wrench for bridge cable adjustment is designed with notches that match the shape of the nut, combined with pawls, return springs and notched gear structures, allowing direct insertion of cable nuts without changing the operating direction Continuous rotation to avoid repeated disengagement and incoming movements.
It makes operation more convenient and fast, improves the efficiency of bridge cable adjustment, and reduces operating time and physical energy consumption.
Smart Images
Figure CN222177545U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to a ratchet wrench for adjusting the cable force of a bridge. [Background technology]
[0002] Large bridges such as cable-stayed bridges and arch bridges require cables to pull up the bridge deck. Bridge cable force refers to the force applied to the bridge cables during the construction and maintenance of the bridge to ensure the stability and safety of the bridge structure. As an important component of suspension bridges and cable-stayed bridges, the tension of the bridge cables directly affects the overall performance and service life of the bridge.
[0003] The zip-lock nut used in bridge cable tension adjustment is a fastener used to adjust and fix the cable tension. The design of the zip-lock nut allows construction workers to adjust the size of the cable tension by rotating the nut. A large wrench is required to adjust the cable tension. Traditional wrenches are heavy and need to be disengaged and inserted into the nut repeatedly. However, the existing ratchet wrench is a closed structure and cannot be used when there are steel wire ropes blocking the upper and lower parts of the cable. The existing traditional wrench needs to be disengaged and inserted into the nut repeatedly. Since the wrench is heavy, this action is time-consuming and laborious. The existing ratchet wrench is a closed structure and cannot be inserted into the cable nut.
[0004] Therefore, it is necessary to explore a ratchet wrench for adjusting the cable force of a bridge which can be inserted into a cable-type nut, is easy to operate, and saves time and effort. [Contents of the utility model]
[0005] The technical problem to be solved by the utility model is to provide a ratchet wrench for adjusting the cable force of a bridge, which has a notch and can be directly inserted into a cable-type nut, is easy to operate, and saves time and effort.
[0006] The utility model is achieved in this way:
[0007] A ratchet wrench for adjusting the cable force of a bridge, the ratchet wrench comprising a wrench base, a handle, a ratchet, a return spring, a notched gear and an upper cover device;
[0008] The rear end of the wrench base is connected to the handle, the front end of the wrench base is provided with a first notch adapted to the shape of the nut, the wrench base is provided with a mounting groove, the middle part of the mounting groove is provided with a raised first limiting ring, small balls are distributed on the first limiting ring, the side wall of the mounting groove is provided with at least two grooves, each of the grooves is provided with a reset spring and a pawl, the pawl is movably arranged, one end is clamped in the groove, and the other end is matched with the reset spring;
[0009] The notch gear is rotatably mounted in the mounting groove, the latching teeth arranged on the outer side of the notch gear cooperate with the ratchet, the notch gear is provided with a second notch, the second notch matches the shape of the first notch, and a limiting concave ring is respectively arranged on the upper and lower end surfaces of the notch gear;
[0010] The upper cover device is arranged at the upper end of the wrench base, and a third notch is opened on the upper cover device, and the shape of the third notch matches that of the first notch. A raised second limiting ring is arranged in the middle of the bottom surface of the upper cover device, and small balls are distributed on the second limiting ring;
[0011] The first limiting circular ring and the second limiting circular ring are respectively sleeved in the corresponding limiting concave rings, and rotate along the limiting concave rings through the rolling of the small balls.
[0012] Furthermore, the groove is a wedge-shaped groove.
[0013] Furthermore, there are two grooves, which are distributed in a centrally symmetrical manner.
[0014] Furthermore, the upper cover device and the wrench base are fixedly connected by bolts.
[0015] The advantages of the utility model are:
[0016] The utility model is provided with a notch that matches the shape of the nut, so that the cable-type nut can be directly inserted into the notch; at the same time, the ratchet wrench of the utility model is reasonably arranged, and can be continuously rotated without changing the operating direction, and there is no need to disengage and insert the nut for repeated movements, so the nut rotation and cable adjustment work can be completed more quickly, the working efficiency is improved, and time and labor are saved.
Brief Description of the Drawings
[0017] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.
[0018] Figure 1 The utility model is a disassembled diagram of a ratchet wrench for adjusting the cable force of a bridge.
[0019] Figure 2 The utility model is a stereoscopic diagram of a ratchet wrench for adjusting the cable force of a bridge.
[0020] Figure 3 The utility model is a schematic diagram of the structure of a wrench base of a ratchet wrench for adjusting the cable force of a bridge.
[0021] Figure 4 yes Figure 3 A partial enlarged view of middle A.
[0022] Figure 5The utility model is a schematic diagram of the matching structure of a wrench base and a notched gear of a ratchet wrench for adjusting the cable force of a bridge.
[0023] Figure 6 The utility model is a schematic diagram of the bottom structure of an upper cover device of a ratchet wrench for adjusting the cable force of a bridge. [Specific implementation method]
[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings and specific implementation methods. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] See also Figures 1 to 6 As shown, a ratchet wrench for adjusting the cable force of a bridge according to the utility model comprises a wrench base 1, a handle 2, a ratchet pawl 3, a return spring 4, a notched gear 5 and an upper cover device 6;
[0027] The rear end of the wrench base 1 is connected to the handle 2, and a first notch 11 matching the shape of the nut is provided at the front end of the wrench base 1. A mounting groove 12 is provided on the wrench base 1, and a raised first limiting ring 13 is provided in the middle of the mounting groove 12. Small balls 7 are distributed on the first limiting ring 13. At least two grooves 14 are provided on the side wall of the mounting groove 12, and a reset spring 4 and a pawl 3 are provided in each of the grooves 14. The pawl 3 is movably arranged, one end of which is clamped in the groove 14, and the other end is matched with the reset spring 4.
[0028] The notched gear 5 is rotatably mounted in the mounting groove 12, the latching teeth 51 arranged on the outer side of the notched gear 5 cooperate with the ratchet 3, the notched gear 5 is provided with a second notch 52, the second notch 52 matches the shape of the first notch 11, and the upper and lower end surfaces of the notched gear 5 are respectively provided with a limiting concave ring 53;
[0029] The upper cover device 6 is arranged at the upper end of the wrench base 1, and a third notch 61 is opened on the upper cover device 6, and the shape of the third notch 61 matches the shape of the first notch 11. A raised second limiting ring 62 is arranged in the middle of the bottom surface of the upper cover device 6, and small balls 7 are distributed on the second limiting ring 62;
[0030] The first limiting circular ring 13 and the second limiting circular ring 62 are respectively sleeved in the corresponding limiting concave rings 53 , and rotate along the limiting concave rings 53 through the rolling of the small balls 7 .
[0031] In a specific implementation, a preferred embodiment is: the groove 14 is a wedge-shaped groove.
[0032] In a specific implementation, a preferred embodiment is as follows: there are two grooves 14, and they are distributed in a centrally symmetrical manner.
[0033] In a specific implementation, a preferred embodiment is as follows: the upper cover device 6 and the wrench base 1 are fixedly connected by bolts 8 .
[0034] In another embodiment of the present invention, the working process is as follows:
[0035] Insert the nut from the notch of the ratchet wrench, and rotate the ratchet wrench counterclockwise. The pawl 3 will clamp the teeth 51 of the notch gear 5 under the action of the reset spring 4 and drive the notch gear 5 to rotate, and the notch gear 5 will then drive the nut to rotate. Rotate the notch gear 5 clockwise. Due to the meshing mode of the pawl 3 and the gear, the pawl 3 will collide with the teeth 51 of the notch gear 5 to compress the reset spring 4, and will not drive the notch gear 5 to rotate. The wrench base 1 can be reset without lifting; then the nut is rotated for the next circle.
[0036] During the rotation process, when the second notch 52 of the notch gear 5 is opposite to one pawl 3, since the two pawls 3 are arranged symmetrically, the other pawl 3 can still maintain interaction with the notch gear 5, ensuring the normal operation of the ratchet wrench. When removing the ratchet wrench, just turn the ratchet wrench clockwise or turn the notch gear 5 counterclockwise until the second notch 52 is aligned with the first notch 11 of the wrench base 1; if you need to rotate the nut in the opposite direction, just flip the wrench 180 degrees.
[0037] The utility model is provided with a notch that matches the shape of the nut, so that the cable-type nut can be directly inserted into the notch; at the same time, the ratchet wrench of the utility model is reasonably arranged, and can be continuously rotated without changing the operating direction, and there is no need to disengage and insert the nut for repeated movements, so the nut rotation and cable adjustment work can be completed more quickly, the working efficiency is improved, and time and labor are saved.
[0038] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.
Claims
1. A ratchet wrench for adjusting the cable force of a bridge, characterized in that: The ratchet wrench comprises a wrench base, a handle, a ratchet, a return spring, a notched gear and an upper cover device; The rear end of the wrench base is connected to the handle, the front end of the wrench base is provided with a first notch adapted to the shape of the nut, the wrench base is provided with a mounting groove, the middle part of the mounting groove is provided with a raised first limiting ring, small balls are distributed on the first limiting ring, the side wall of the mounting groove is provided with at least two grooves, each of the grooves is provided with a reset spring and a pawl, the pawl is movably arranged, one end is clamped in the groove, and the other end is matched with the reset spring; The notch gear is rotatably mounted in the mounting groove, the latching teeth arranged on the outer side of the notch gear cooperate with the ratchet, the notch gear is provided with a second notch, the second notch matches the shape of the first notch, and a limiting concave ring is respectively arranged on the upper and lower end surfaces of the notch gear; The upper cover device is arranged at the upper end of the wrench base, and a third notch is opened on the upper cover device, and the shape of the third notch matches that of the first notch. A raised second limiting ring is arranged in the middle of the bottom surface of the upper cover device, and small balls are distributed on the second limiting ring; The first limiting circular ring and the second limiting circular ring are respectively sleeved in the corresponding limiting concave rings, and rotate along the limiting concave rings through the rolling of the small balls.
2. A ratchet wrench for adjusting the cable force of a bridge as claimed in claim 1, characterized in that: The groove is a wedge-shaped groove.
3. A ratchet wrench for adjusting the cable force of a bridge as claimed in claim 1, characterized in that: There are two grooves, which are distributed in a central symmetrical manner.
4. A ratchet wrench for adjusting the cable force of a bridge as claimed in claim 1, characterized in that: The upper cover device is fixedly connected to the wrench base via bolts.