Anti-pinch device for cable strand guide wheel
By installing a protective cover and inclined baffle on the cable guide wheel, the problem of hand injury during construction is solved, and safe and efficient cable traction is achieved.
Patent Information
- Application Number
- CN202422918585.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In existing suspension bridge construction, the exposed cable strand guide wheels pose a problem that can easily cause workers' hands to be pinched.
The design includes a cable guide wheel anti-pinch device, comprising a support frame, a guide wheel, and a protective cover. The protective cover covers the guide wheel and is equipped with clearance holes and inclined baffles to prevent hands from being caught in the gap.
It effectively prevents construction workers' hands from being pinched by the guide wheel, is easy to operate, and does not affect the traction process of the cable strands.
Smart Images
Figure CN223593225U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge cable construction technical field, concretely is cable guide pulley anti -pinching device. BACKGROUND
[0002] At present, in the construction process of suspension bridge, cable support towers are usually arranged on both sides of the suspension bridge, and catwalk face cables are arranged between the cable support towers, the catwalk face cables are generally composed of several steel cables arranged side by side, and the catwalk face cables form an operation channel for temporary construction of the main cable of the cable.
[0003] Since the cables are dragged on the top of the cable support tower and the catwalk frame, the span of the cable is large, the weight of the cable is large, and the dragging force is large, therefore, a plurality of cable guide pulleys are arranged on the catwalk at intervals to support the cable, for example, a patent with the publication number CN1035014B discloses a suspension bridge main cable erection device, the cable slides on the supporting pulley, and the supporting pulley rotates to reduce the frictional resistance of the cable, so that the dragging force is smaller, the supporting pulley of the device is in an exposed state, and the cable is often adjusted manually during the cable traction process, the hand is easily driven into the gap between the cable and the guide pulley, and the hand is easily injured. UTILITY MODEL CONTENTS
[0004] In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide a cable guide pulley anti-pinch device to solve the problem that the hand is easily injured when the existing erection device is used.
[0005] To solve the above problems, the utility model adopts the technical scheme of a cable guide pulley anti-pinch device, which comprises a support frame, a guide pulley, and a protective cover.
[0006] The beneficial effects of the scheme are as follows: compared with the prior art, the protective cover covers the guide pulley, which can prevent the hand of the construction personnel from contacting the guide pulley and prevent the hand from being driven into the gap between the guide pulley and the cable, the inclined baffle is arranged at the edge of the avoiding hole of the protective cover, the edge of the baffle is located inside the protective cover, and when the cable is adjusted, even if the cable contacts and slides on the edge of the baffle, the hand of the construction personnel will not touch the edge of the baffle, which effectively prevents the hand from being driven into the protective cover and causing injury.
[0007] Further, the protective cover is hinged with the support frame through connecting rods arranged on both sides of the protective cover and hinged at both ends on the protective cover and the support frame, and the protective cover can be opened and closed without blocking the cable strand when lifting and lowering the cable strand.
[0008] Further, the support frame is further provided with a support plate, and the support plate is abutted with the lower end of the protective cover when the protective cover is opened to position the protective cover.
[0009] Further, the two protective covers are provided with quick-connection buckles between the two protective covers, and the two protective covers are connected and fixed through the quick-connection buckles when the protective covers are closed to avoid separation of the protective covers, and the quick-connection buckles can be quickly opened when the protective covers need to be opened, and the operation is convenient and fast.
[0010] Further, the edges of the baffle are rounded, the cable strand slides at the edges of the baffle when the edges of the baffle are contacted with the cable strand, the rounded edges can reduce the friction, and the baffle is prevented from being excessively worn.
[0011] Further, the baffle has an inclination angle of 10°-45°, the edges of the baffle can be located inside the protective cover, and the hands of the construction personnel are prevented from being contacted.
[0012] Further, the protective cover is further provided with a handle, and the handle is convenient for the construction personnel to push and pull the protective cover to open and close the protective cover. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a front view schematic diagram of the utility model;
[0015] Figure 3 It is Figure 2 A-A sectional view schematic diagram;
[0016] Figure 4 It is a schematic diagram of the protective cover of the utility model when being opened;
[0017] In the drawing: 1-support frame, 2-guide wheel, 3-protective cover, 4-avoidance hole, 5-baffle, 6-connecting rod, 7-support plate, 8-quick-connection buckle, 9-handle. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection range of the utility model.
[0019] The embodiment is shown in the accompanying drawings Figures 1 to 4 The device is shown in the accompanying drawings: the cable guide roller anti-pinch device comprises a support frame 1, a guide roller 2 and protective covers 3, the guide roller 2 is rotatably installed on the support frame 1, the protective covers 3 are symmetrically installed on both sides of the support frame 1 respectively, the protective covers 3 cover the guide roller 2, so that the hands of the construction personnel will not contact the guide roller 2 when adjusting the cable, effectively preventing the hands from being pinched and injured by being rolled into the guide roller 2 and the cable, the protective covers 3 are provided with avoiding holes 4, the cable slides on the guide roller 2 and is pulled through the avoiding holes 4 of the protective covers 3, the edges of the avoiding holes 4 are provided with inwardly inclined baffles 5, when the construction personnel adjusts the cable, the cable will move in the left-right direction of the guide roller 2, and the cable contacts the edges of the baffles 5 of the protective covers 3 when approaching the protective covers 3, since the baffles 5 are inclined inwardly, the edges are located inside the protective covers 3, the hands of the construction personnel will not contact the position where the cable contacts the baffles 5, so that the hands are prevented from being rolled into and injured by the cable contacting the edges of the baffles 5.
[0020] The protective covers 3 are hingedly connected with the support frame 1 through connecting rods 6, the connecting rods 6 are arranged on both sides of the protective covers 3, and the two ends are hingedly connected with the protective covers 3 and the support frame 1 respectively, when the cable is lifted and lowered, the protective covers 3 can be opened and closed without blocking the cable; the support frame 1 is further provided with a support plate 7, the support plate 7 abuts against the lower end of the protective cover 3 when the protective cover 3 is opened, and the support plate 7 positions the protective cover 3; quick-connection lock buckles are arranged between the two protective covers 3, the two protective covers 3 are connected and fixed through the quick-connection lock buckles when the protective covers 3 are closed, so as to avoid the protective covers 3 from being separated, the quick-connection lock buckles can also be quickly opened when the protective covers 3 need to be opened, so that the operation is convenient and fast; the edges of the baffles 5 are chamfered, the cable will slide at the edges of the baffles 5 when the edges of the baffles 5 contact the cable, the chamfered edges can reduce the friction force and avoid excessive wear of the baffles 5; the inclination angle of the baffles 5 is 10°-45°, so as to ensure that the edges of the baffles 5 are located inside the protective covers 3 and prevent the hands of the construction personnel from contacting; the protective covers 3 are further provided with handles 9, so as to facilitate the construction personnel to push and pull the protective covers 3 through the handles 9 to open and close the protective covers 3.
[0021] The specific implementation process is as follows: in use, the quick-connection lock is opened, the connecting rod 6 is rotated around the hinge point by pulling the two side handles 9, the protective cover 3 is opened to the two sides, the strand is placed on the guide wheel 2, the handle 9 is pushed, the protective cover 3 is closed, the strand passes through the avoiding hole 4 of the protective cover 3, the quick-connection lock is closed, the two side protective covers 3 are stably connected, the guide wheel 2 is covered, at this time, the strand is slid on the guide wheel 2 by pulling the strand, the hands of the construction personnel cannot contact the gap between the guide wheel 2 and the strand, the hands of the construction personnel cannot be wound and injured, when the strand needs to be manually adjusted during the pulling process, because the guide wheel 2 is covered by the protective cover 3, and the edge of the avoiding hole 4 of the protective cover 3 is provided with the inwardly inclined baffle 5, the edge of the baffle 5 is located in the inside of the protective cover 3, when the strand is manually adjusted, the strand can move left and right, the hands of the construction personnel hold the strand, even if the strand contacts the baffle 5, the hands of the construction personnel cannot contact the position where the strand contacts the baffle 5, the construction personnel cannot be wound in the protective cover 3, and the injury event can be effectively avoided.
[0022] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme and other common knowledge are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection range of the present application, and these will not affect the effect and practicality of the present application. The protection range of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.
Claims
1. A strand guide wheel anti-pinch device, comprising a support frame, a guide wheel and a protective cover, the guide wheel being rotatably mounted on the support frame, characterized in that: The left-right symmetrical protective covers are respectively arranged on both sides of the support frame, and the protective cover is provided with an avoiding hole, and the edge of the avoiding hole is provided with an inwardly inclined baffle.
2. The strand guide wheel anti-pinch device of claim 1, wherein: The protective cover is hinged to the support frame through a connecting rod, the connecting rod is arranged on both sides of the protective cover, and both ends are respectively hinged to the protective cover and the support frame.
3. The strand guide wheel anti-pinch device of claim 1, wherein: The support frame is further provided with a support plate.
4. The strand guide wheel anti-pinch device of claim 1, wherein: A quick-connection lock buckle is arranged between the two protective covers.
5. The strand guide wheel anti-pinch device of claim 1, wherein: The edge of the baffle is chamfered.
6. The strand guide wheel anti-pinch device of claim 1, wherein: The inclination angle of the baffle is 10°-45°.
7. The strand guide wheel anti-pinch device of claim 1, wherein: A handle is further arranged on the protective cover.