Cable diameter self-adaptive wire pulling tool

Abstract

The utility model discloses a cable diameter self-adaptive wire pulling tool, which comprises a supporting rod and a dowel bar, the supporting rod and the dowel bar are provided with through holes and are connected through a connecting part to form a lever structure, the working end of the dowel bar is provided with a clamping component, and the clamping component is connected with the supporting rod through an extension spring. According to the utility model, a lever structure is adopted, force applied by an operator can be amplified, compared with manual direct pulling-out, time and labor are saved, operation is convenient, working efficiency can be improved, various diameters can be automatically adapted, and the operator and a cable can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cable plugging and unplugging, in particular to a wire pulling tool capable of adaptively adjusting the cable diameter. Background Art

[0002] The existing technology is to manually plug and unplug cables connected by pre-tightening force. When plugging and unplugging a large number of cables, it is not only time-consuming and labor-intensive, but also limited by the operating space. There is also a risk of damaging the cables due to the wrong force direction. There are the following disadvantages when plugging and unplugging manually: waste of manpower; it cannot ensure that the force direction is always kept in the cable axis, there is a risk of damaging the cable; it is often difficult to apply force when the operating space is small. Utility Model Content

[0003] The utility model aims to provide a wire pulling tool with adaptive cable diameter, so as to solve the technical problems in the prior art that manual wire pulling cannot ensure that the force direction is always kept in the cable axial direction and the operation space is small.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a self-adaptive cable diameter pulling tool, comprising a support rod and a force transmission rod, wherein the support rod and the force transmission rod are provided with through holes and connected by connecting parts to form a lever structure, and a clamping component is provided at the working end of the force transmission rod, and the clamping component is connected to the support rod by a tension spring. When a person applies force, the tension spring can reduce the gap between the two clamping components, so that the clamping component contacts the cable interface, and convert a part of the force applied by the person into a contact force between the clamping component and the cable.

[0006] Furthermore, a compression spring is provided in the groove cavity of the force transmission rod and the clamping component, a limit block is provided at the tail end of the compression spring, and the compression spring includes the compression spring 1 and the compression spring 2.

[0007] Furthermore, the clamping component is limited at the working end of the force transmission rod by a groove structure, and the clamping component includes a clamping component one and a clamping component two.

[0008] Furthermore, the connecting parts include pins and bolts.

[0009] Furthermore, the tension spring includes a tension spring 1 and a tension spring 2.

[0010] Furthermore, an anti-slip layer is provided on the contact surface between the clamping component and the cable interface.

[0011] Furthermore, the holding ends of the support rod and the force transmission rod are provided with an insulating layer.

[0012] Based on the above technical solution, the embodiment of the utility model can at least produce the following technical effects:

[0013] (1) The utility model provides an adaptive cable diameter pulling tool, which is designed with a lever structure that can amplify the force applied by the operator compared to direct manual pulling, saving time and effort, facilitating operation, improving work efficiency, automatically adapting to a variety of diameters, and effectively protecting the operator and the cable.

[0014] (2) The cable pulling tool with adaptive cable diameter provided by the utility model uses a support rod to support the cable female port while the lever structure ensures that the force direction is only along the cable axis, which can reduce the risk of cable damage.

[0015] (3) The cable-diameter-adaptive wire-pulling tool provided by the utility model is relatively slender and has a sharp working end, which requires a smaller operating space and is more capable of coping with complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 This is a partial view of the working end of an embodiment of the utility model;

[0019] Figure 3 This is a diagram showing the coordination of the force transmission rod and the compression spring of an embodiment of the utility model;

[0020] Figure 4 This is a rear working end view of a hidden dowel rod of an embodiment of the utility model;

[0021] Figure 5 It is a bottom view of an embodiment of the utility model;

[0022] Figure 6 It is a front view of an embodiment of the utility model;

[0023] Figure 7 It is a top view of an embodiment of the utility model;

[0024] Figure 8 It is a working state diagram of an embodiment of the utility model;

[0025] Fig. 9This is a working end diagram of the working state of an embodiment of the utility model;

[0026] Fig.10 This is a front view of the working end of the embodiment of the utility model in working state;

[0027] Fig.11 This is a top view of the working end of the embodiment of the utility model in working state;

[0028] In the figure: 1. Support rod; 2. Force transmission rod; 3. Clamping component 1; 4. Clamping component 2; 5. Tension spring 1; 6. Tension spring 2; 7. Compression spring 1; 8. Compression spring 2. DETAILED DESCRIPTION

[0029] The following will combine the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application 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 application; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] Example 1

[0032] like Figure 1-7 As shown, it comprises a support rod 1 and a force transmission rod 2, wherein the support rod 1 and the force transmission rod 2 are provided with through holes and connected by connecting parts to form a lever structure, and a clamping component is provided at the working end of the force transmission rod 2, and the clamping component is connected to the support rod 1 through a tension spring. When a person applies force, the tension spring can reduce the gap between the two clamping components, so that the clamping component contacts the cable interface, and convert part of the force applied by the person into a contact force between the clamping component and the cable.

[0033] In this embodiment, a compression spring is provided in the groove cavity of the force transmission rod 2 and the clamping component, a limit block is provided at the tail end of the compression spring, and the compression spring includes the compression spring 1 7 and the compression spring 2 8. When the operator stops applying force, the compression spring can rebound the two clamping components to the state before the force is applied.

[0034] In this embodiment, the clamping component is limited at the working end of the force transmission rod 2 by a groove structure, and the clamping component includes a clamping component 1 3 and a clamping component 2 4. The clamping component is used to contact the cable interface.

[0035] In this embodiment, the connecting part is a pin.

[0036] In this embodiment, the tension spring includes a tension spring 1 5 and a tension spring 2 6 .

[0037] In this embodiment, the contact surface between the clamping part and the cable interface is provided with an anti-slip layer. The clamping part and the support rod are provided with spring holes through which the spring is limited by the steel wire extending from the spring, and a limit block is attached at the end of the steel wire to prevent the spring from falling off.

[0038] In this embodiment, the holding ends of the support rod 1 and the force transmission rod 2 are provided with an insulating layer.

[0039] Example 2

[0040] like Figure 1-7 As shown, it includes a support rod 1 and a force transmission rod 2, wherein the support rod 1 and the force transmission rod 2 are provided with through holes and are connected through connecting parts to form a lever structure, and the working end of the force transmission rod 2 is provided with a clamping component, and the clamping component is connected to the support rod 1 through a tension spring.

[0041] In this embodiment, a compression spring is provided in the groove cavity of the force transmission rod 2 and the clamping component, a limit block is provided at the tail end of the compression spring, and the compression spring includes the compression spring 1 7 and the compression spring 2 8. When the operator stops applying force, the compression spring can rebound the two clamping components to the state before the force is applied.

[0042] In this embodiment, the clamping component is limited at the working end of the force transmission rod 2 by a groove structure, and the clamping component includes a clamping component 1 3 and a clamping component 2 4. The clamping component is used to contact the cable interface.

[0043] In this embodiment, the connecting part is a bolt, and the through hole is circular.

[0044] In this embodiment, the tension spring includes a tension spring 1 5 and a tension spring 2 6 .

[0045] In this embodiment, the contact surface between the clamping part and the cable interface is provided with an anti-slip layer. The clamping part and the support rod are provided with spring holes through which the spring is limited by the steel wire extending from the spring, and a limit block is attached at the end of the steel wire to prevent the spring from falling off.

[0046] In this embodiment, the holding ends of the support rod 1 and the force transmission rod 2 are provided with an insulating layer.

[0047] like Figure 8-11 , when the operator does not apply force, both the compression spring and the tension spring are in a force-free state, and the gap between the clamping parts is the largest.

[0048] When using this tool to disassemble the cable, clamp the two ends of the cable with the working end, and use the support rod 1 to hold the cable female port. The operator holds the holding end of the support rod 1 and the force transmission rod 2 and manually applies a tightening force, which is amplified by the lever structure to gradually separate the support rod 1 and the force transmission rod 2 at the working end. At this time, the two tension springs are stretched, providing an opposing force to the two clamping parts.

[0049] Since the stiffness coefficient of the extension spring is much greater than that of the compression spring, the two clamping parts are tightened under the elastic force of the extension spring until they come into contact with the cable interface, and the clamping parts stop tightening due to the contact force.

[0050] At this time, the working end of the support rod and the working end of the force transmission rod continue to separate, the tension spring is further stretched, and the contact force between the two clamping components and the cable interface increases with the increase of the elastic force; the clamping component will give the cable interface an axial friction force through the contact force with the cable interface to separate the cable interface from the female port until the cable removal work is completed.

[0051] After the cable is pulled out, the operator stops applying force, the tension spring contracts to a force-free state, driving the support rod and the force transmission rod back to the state before the force was applied, and at the same time the two clamping parts separate under the elastic force of the compression spring until the gap is the largest.

[0052] The structures, functions and connection forms disclosed in this article can be implemented in other ways. For example, the embodiments described above are only exemplary, for example, multiple components can be combined or integrated into another component; in addition, each functional component in each embodiment of this article can be integrated into one functional component, or each functional component can exist physically separately, or two or more functional components can be integrated into one functional component.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A cable pulling tool with adaptive cable diameter, characterized in that: The invention comprises a support rod (1) and a force transmission rod (2), wherein the support rod (1) and the force transmission rod (2) are provided with through holes and are connected via connecting parts to form a lever structure, and a clamping component is provided at the working end of the force transmission rod (2), and the clamping component is connected to the support rod (1) via a tension spring.

2. The cable-diameter-adaptive wire pulling tool according to claim 1, characterized in that: A compression spring is arranged in the groove cavity between the force transmission rod (2) and the clamping component, a limit block is arranged at the tail end of the compression spring, and the compression spring comprises a compression spring 1 (7) and a compression spring 2 (8).

3. The cable-diameter-adaptive wire pulling tool according to claim 1, characterized in that: The clamping component is limited at the working end of the force transmission rod (2) by a groove structure, and the clamping component comprises a clamping component 1 (3) and a clamping component 2 (4).

4. The cable-diameter-adaptive wire pulling tool according to claim 1, characterized in that: The connecting parts include pins and bolts.

5. The cable-diameter-adaptive wire pulling tool according to claim 1, characterized in that: The tension spring comprises a tension spring 1 (5) and a tension spring 2 (6).

6. The cable-diameter-adaptive wire pulling tool according to claim 1, characterized in that: An anti-slip layer is provided on the contact surface between the clamping component and the cable interface.

7. The cable-diameter-adaptive wire pulling tool according to claim 1, characterized in that: The holding ends of the support rod (1) and the force transmission rod (2) are provided with insulating layers.

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