Long-arm railway rolling thorn cage buckle fastening pliers

Abstract

The utility model discloses a long arm railway rolling thorn cage buckle fastening plier which comprises an outer support arm, an inner support arm and a fastening handle, the outer support arm is of a hollow structure, a first jaw is arranged at the top end of the outer support arm, the inner support arm is arranged in the middle of the outer support arm, the inner support arm and the outer support arm form a nested structure, a second jaw is arranged at the top end of the inner support arm, the first jaw and the second jaw form a clamping mechanism, and the fastening handle is arranged on the clamping mechanism. A nesting structure formed by the outer supporting arm and the inner supporting arm is fixedly connected with a fastening handle for controlling the inner supporting arm to stretch out and draw back, stretching out and drawing back of the inner supporting arm are controlled through the fastening handle, and then the first jaw and the second jaw are controlled to be close to each other or away from each other, namely clamping or loosening of the clamping mechanism is controlled. The left hand of an operator places the buckle in the clamping mechanism, and the right hand of the operator places the handle. An operator slightly pulls the fastening handle, so that the buckle does not fall off from the clamping mechanism. When the fastening handle is used, the fastening handle extends into the rolling thorn cage, the buckle is aligned to the positions, needing to be fixed, of the rolling thorn cage and the barbed wires, the fastening handle is held tightly, the buckle can be tightly clamped on the rolling thorn cage and the barbed wires, and then the fastening handle is loosened.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening tools, in particular to a long-arm railway rolling cage buckle fastening pliers. Background Art

[0002] Along the railway, animals often enter the line, people climb into the fence, and people outside the railway illegally enter the net. Once the train driver finds out, he will slow down or stop the train, which will directly affect the normal operation of this and subsequent trains. If the train hits the netted object, it will cause a serious safety accident to the train and people outside the railway. It will not only disrupt the normal production order and have an extremely adverse impact on production safety, but also bring great hidden dangers to railway driving safety. Common protective measures are to install fence nets on both sides of the railway, and generally install barbed cages on the fence nets.

[0003] In the prior art, when installing a barbed wire cage on a fence net, it is necessary to manually climb up when putting on the buckle, and the person needs to put his arm into the barbed wire cage to fasten the buckle with pliers. This operation has the following disadvantages: ① The person needs to climb up the ladder, and the ground on site is not flat, so there is a risk of falling; ② The person needs to put his arm into the barbed wire cage to fasten the buckle, and during the on-site operation, the arm and clothes are often scratched by the barbed wire cage. The body and face are in close contact with the barbed wire cage, which poses a great safety risk; ③ The cross pliers currently used are large in size, heavy in weight, clumsy, and inconvenient to use; for this reason, we propose a long-arm railway rolling barbed wire cage buckle fastening pliers. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a long-arm railway rolling cage buckle fastening pliers, which consists of two inner and outer long arms, a buckle assembly and a fastening handle. When in use, the operator first places the buckle in the front clamping mechanism, grips the fastening handle, and drives the front clamping mechanism through the fastening handle. The clamping mechanism is tightened to achieve the buckle fastening effect, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a long-arm railway rolling cage clip fastening pliers, comprising an outer support arm, an inner support arm and a fastening handle, the outer support arm is a hollow structure, and a jaw 1 is arranged at the top, the inner support arm is arranged in the middle of the outer support arm, and forms a nested structure with the outer support arm, a jaw 2 is arranged at the top of the inner support arm, the jaw 1 and the jaw 2 form a clamping mechanism, the nested structure formed by the outer support arm and the inner support arm is fixedly connected to the fastening handle for controlling the extension and retraction of the inner support arm, and the extension and retraction of the inner support arm is controlled by the fastening handle, thereby controlling the approach or distance between the jaw 1 and the jaw 2, that is, the clamping or release of the clamping mechanism.

[0006] Furthermore, the first jaw is an upward arc-shaped structure, and the second jaw is a downward arc-shaped structure, and the arc-shaped structure is conducive to clamping the buckle.

[0007] Furthermore, a unidirectional jaw 1 is provided on one side of the top end of the outer support arm, and a unidirectional jaw 2 is provided on the same side of the inner support arm, thereby forming a unidirectional clamping mechanism.

[0008] Furthermore, the top of the outer arm is provided with a bidirectional jaw 1, which forms a T-shaped structure with the outer arm. To match it, the inner arm is also provided with a bidirectional jaw 2, which forms a T-shaped structure with the inner arm, forming a bidirectional clamping mechanism that can clamp on both sides.

[0009] Furthermore, the lower end of the inner support arm is a connecting rod or a connecting rope.

[0010] Furthermore, the fastening handle includes an outer ring, an inner ring and a spring, the top of the outer ring is fixedly connected to the tail end of the outer support arm, the inner ring is located inside the outer ring, and the top is fixedly connected to the tail end of the inner support arm, the outer ring and the inner ring have the same shape, and the inner ring is smaller than the outer ring, a spring is arranged between the outer side of the bottom of the inner ring and the inner side of the bottom of the outer ring, and both ends of the spring are fixedly connected to the outer ring and the inner ring respectively, and the retraction and automatic extension of the inner support arm are realized by the action of the spring.

[0011] Furthermore, a limiting column 1 is arranged on the outer side of the bottom of the inner ring, and a limiting column 2 is arranged on the inner side of the bottom of the outer ring. Both ends of the spring are respectively sleeved with the limiting column 1 and the limiting column 2 to prevent the spring from shifting or falling off during use.

[0012] Furthermore, a telescopic column is provided between the outer side of the bottom of the inner ring and the inner side of the bottom of the outer ring, and the spring is sleeved with the telescopic column.

[0013] Furthermore, the fastening handle includes a humanoid bracket, a trapezoidal ring, a mounting groove, a pin hole and a grip rod. The top of the humanoid bracket is fixedly connected to the bottom of the outer arm, and the bottom is fixedly connected to the right-angle waist of the trapezoidal ring. A through groove is provided on the trapezoidal ring at the connection with the humanoid bracket, and a mounting groove is provided on the trapezoidal ring at the vertex where the upper bottom intersects with another waist. Pin holes are provided on both sides of the mounting groove. A mounting hole 1 is provided on the top of the grip rod, and the top of the grip rod is fixedly arranged in the mounting groove by a limiting mechanism composed of the pin hole, the mounting hole 1 and the pin column bolt. The grip rod forms a rotating structure with the pin column bolt as the axis, and the bottom of the inner arm passes through the through groove on the trapezoidal ring and is fixedly connected to the front end of the grip rod. When the rear end of the grip rod is held and force is applied downward, the inner arm is pulled to move downward, and the clamping mechanism at the top is clamped.

[0014] Furthermore, the bottom of the inner arm is fixedly connected to the clamp, the clamp is a U-shaped structure, and limiting holes are set at both ends. The front end of the grip is set with a second mounting hole. The clamp, the limiting hole, the second mounting hole and the limiting bolt constitute a limiting structure. The front end of the grip constitutes a rotating structure with the limiting bolt as the axis.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the long-arm railway rolling cage buckle fastening pliers have the following advantages:

[0016] Compared with the traditional method, this product does not require workers to climb high to complete the work, reducing safety risks; the long arm of this product means that workers do not need to put their arms into the barbed cage to fasten the buckles, reducing direct contact with the barbed cage and the resulting labor injuries; this product is made of lightweight steel and is much lighter than traditional extended cross pliers.

[0017] The operator places the buckle in the clamping mechanism and places the handle with his right hand. The operator gently pulls the tightening handle to prevent the buckle from falling from the clamping mechanism. Then put it into the roller cage, align the buckle with the roller cage and the barbed wire to be fixed, hold the tightening handle, and the buckle can be firmly clamped on the roller cage and the barbed wire. After completion, release the tightening handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the utility model when it is loosened;

[0019] Figure 2 This is a schematic diagram of the structure of one embodiment of the utility model when clamping;

[0020] Figure 3 It is a schematic diagram of the structure of another embodiment of the utility model when it is loosened;

[0021] Figure 4 A schematic diagram of the structure of another embodiment of the utility model after being disassembled.

[0022] In the figure: 1 outer support arm, 11 jaw 1, 2 inner support arm, 21 jaw 2, 3 fastening handle, 31 outer ring, 32 inner ring, 33 spring, 34 humanoid bracket, 35 trapezoidal ring, 36 mounting groove, 37 pin hole, 38 clamp, 39 grip rod. DETAILED DESCRIPTION

[0023] The following will be combined with 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 of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4The present embodiment provides a technical solution: a long-arm railway rolling cage buckle fastening pliers, comprising an outer arm 1, an inner arm 2 and a fastening handle 3, the outer arm 1 is a hollow structure, and a jaw 11 is arranged at the top, the inner arm 2 is arranged in the middle of the outer arm 1, and forms a nested structure with the outer arm 1, a jaw 21 is arranged at the top of the inner arm 2, the jaw 11 and the jaw 21 form a clamping mechanism, the nested structure formed by the outer arm 1 and the inner arm 2 is fixedly connected to the fastening handle 3 for controlling the extension and retraction of the inner arm 2, the extension and retraction of the inner arm 2 is controlled by the fastening handle 3, and then the approach or distance between the jaw 11 and the jaw 21 is controlled, that is, the clamping or release of the clamping mechanism is controlled.

[0025] Among them, the first jaw 11 is an upward arc-shaped structure, and the second jaw 21 is a downward arc-shaped structure, and the arc-shaped structure is conducive to clamping the buckle.

[0026] like Figure 1-2 As shown, a unidirectional jaw 11 is provided on one side of the top end of the outer arm 1, and a unidirectional jaw 2 21 is provided on the same side of the inner arm 2, forming a unidirectional clamping mechanism.

[0027] like Figure 3-4 As shown, the top of the outer arm 1 is provided with a bidirectional jaw 11, and the jaw 11 forms a T-shaped structure with the outer arm 1. To match it, the inner arm 2 is also provided with a bidirectional jaw 21, and the jaw 21 forms a T-shaped structure with the inner arm 2, constituting a bidirectional clamping mechanism that can clamp on both sides.

[0028] like Figure 1-2 As shown, as an embodiment, the fastening handle 3 includes an outer ring 31, an inner ring 32 and a spring 33. The top of the outer ring 31 is fixedly connected to the tail end of the outer support arm 1. The inner ring 32 is located inside the outer ring 31, and the top is fixedly connected to the tail end of the inner support arm 2. The outer ring 31 and the inner ring 32 have the same shape, and the size of the inner ring 32 is smaller than the outer ring 31. A spring 33 is arranged between the outer side of the bottom of the inner ring 32 and the inner side of the bottom of the outer ring 31. Through the action of the spring 33, the retraction and automatic extension of the inner support arm 2 are realized. The shape of the outer ring 31 and the inner ring 32 is a rectangular ring or a circular ring. A rectangular ring is preferred, which is more suitable for holding.

[0029] In order to stabilize the spring 33 and prevent it from shifting during use, a limiting column 1 is provided on the outer side of the bottom of the inner ring 32, and a limiting column 2 is provided on the inner side of the bottom of the outer ring 31. The two ends of the spring 33 are respectively connected to the limiting column 1 and the limiting column 2 to prevent the spring 33 from shifting or falling off during use.

[0030] Alternatively, a telescopic column is provided between the outer side of the bottom of the inner ring 32 and the inner side of the bottom of the outer ring 31 , and the spring 33 is sleeved on the telescopic column, and the telescopic column limits the position of the spring 33 .

[0031] like Figure 4As shown, the lower end of the inner support arm 2 is a connecting rod or a connecting rope, or the structures of the upper and lower ends of the inner support arm 2 are the same, and it is selected according to the actual situation.

[0032] As Figure 3-4 shown, as another embodiment, the fastening handle 3 includes a human-shaped bracket 34, a trapezoidal ring 35, a mounting groove 36, a pin hole 37 and a grip rod 39. The top of the human-shaped bracket 34 is fixedly connected to the bottom of the outer support arm 1, and the bottom is fixedly connected to the right-angled waist side of the trapezoidal ring 35. A through groove is provided on the trapezoidal ring 35 at the connection with the human-shaped bracket 34, and a mounting groove 36 is provided at the vertex where the upper base intersects with the other waist side of the trapezoidal ring 35. Pin holes 37 are provided on both sides of the mounting groove 36. The top end of the grip rod 39 is provided with a first mounting hole, and the top end of the grip rod 39 is fixedly arranged in the mounting groove 36 through a limiting mechanism composed of the pin hole 37, the first mounting hole and a pin bolt. The grip rod 39 forms a rotating structure with the pin bolt as the axis. The bottom of the inner support arm 2 passes through the through groove on the trapezoidal ring 35 and is fixedly connected to the front end of the grip rod 39. When the operator holds the rear end of the grip rod 39 and exerts force downward, the inner support arm 2 is pulled downward, and the clamping mechanism at the top clamps.

[0033] The bottom of the inner support arm 2 is fixedly connected to the clamping member 38. The clamping member 38 is in a U-shaped structure, and limiting holes are provided at both ends. The front end of the grip rod 39 is provided with a second mounting hole. The clamping member 38, the limiting holes, the second mounting hole and a limiting bolt form a limiting structure, and the front end of the grip rod 39 forms a rotating structure with the limiting bolt as the axis. Different from Figure 1-Figure 2 the embodiment shown, after loosening, the inner support arm 2 will not automatically rebound and needs to be manually pushed upward.

[0034] The working principle of a long-arm railway barbed wire cage buckle tightening pliers provided by the present invention is as follows: The operator places the buckle in the clamping mechanism and places the right hand at the handle position. The operator slightly holds the fastening handle 3 so that the buckle does not fall from the clamping mechanism. The operator then inserts it into the barbed wire cage, aligns the buckle with the position where the barbed wire cage and the barbed wire need to be fixed, holds the fastening handle 3 tightly, and the buckle can be tightly stuck on the barbed wire cage and the barbed wire. After completion, the fastening handle 3 is loosened.

[0035] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A long-arm railway rolling cage buckle fastening pliers, characterized by: The invention comprises an outer support arm (1), an inner support arm (2) and a tightening handle (3); the outer support arm (1) is a hollow structure and is provided with a first jaw (11) at the top; the inner support arm (2) is arranged in the middle of the outer support arm (1) and forms a nested structure with the outer support arm (1); the top of the inner support arm (2) is provided with a second jaw (21); the first jaw (11) and the second jaw (21) form a clamping mechanism; the nested structure formed by the outer support arm (1) and the inner support arm (2) is fixedly connected to the tightening handle (3) for controlling the extension and retraction of the inner support arm (2).

2. The long-arm railway roller cage buckle fastening pliers according to claim 1, characterized in that: The first jaw (11) is an upward arc-shaped structure, and the second jaw (21) is a downward arc-shaped structure.

3. The long-arm railway rolling cage buckle fastening pliers according to claim 2, characterized in that: A unidirectional jaw 1 (11) is provided on one side of the top end of the outer support arm (1), and a unidirectional jaw 2 (21) is provided on the same side of the inner support arm (2); the jaw 1 (11) and the jaw 2 (21) constitute a unidirectional clamping mechanism.

4. The long-arm railway rolling cage buckle fastening pliers according to claim 2, characterized in that: The top end of the outer arm (1) is provided with a bidirectional jaw 1 (11), and the jaw 1 (11) and the outer arm (1) form a T-shaped structure, and the inner arm (2) is also provided with a bidirectional jaw 2 (21), and the jaw 2 (21) and the inner arm (2) form a T-shaped structure, and the jaw 1 (11) and the jaw 2 (21) constitute a bidirectional clamping mechanism.

5. A long-arm railway rolling cage buckle fastening pliers according to claim 3 or 4, characterized in that: The fastening handle (3) comprises an outer ring (31), an inner ring (32) and a spring (33); the top of the outer ring (31) is fixedly connected to the tail end of the outer support arm (1); the inner ring (32) is located inside the outer ring (31) and the top is fixedly connected to the tail end of the inner support arm (2); the outer ring (31) and the inner ring (32) have the same shape, and the size of the inner ring (32) is smaller than that of the outer ring (31); a spring (33) is arranged between the outer side of the bottom of the inner ring (32) and the inner side of the bottom of the outer ring (31); and the two ends of the spring (33) are fixedly connected to the outer ring (31) and the inner ring (32) respectively.

6. The long-arm railway rolling cage buckle fastening pliers according to claim 5, characterized in that: A first limiting column is arranged on the outer side of the bottom of the inner ring (32), and a second limiting column is arranged on the inner side of the bottom of the outer ring (31). The two ends of the spring (33) are respectively sleeved with the first limiting column and the second limiting column.

7. The long-arm railway rolling cage buckle fastening pliers according to claim 5, characterized in that: A telescopic column is provided between the outer side of the bottom of the inner ring (32) and the inner side of the bottom of the outer ring (31), and the spring (33) is sleeved with the telescopic column.

8. A long-arm railway rolling cage buckle fastening pliers according to claim 3 or 4, characterized in that: The fastening handle (3) includes a human-shaped bracket (34), a trapezoidal ring (35), a mounting groove (36), a pin hole (37), and a grip rod (39). The top of the human-shaped bracket (34) is fixedly connected to the bottom of the outer support arm (1), and the bottom is fixedly connected to the right-angled waist side of the trapezoidal ring (35). A through groove is provided on the trapezoidal ring (35) at the connection with the human-shaped bracket (34), and a mounting groove (36) is provided at the vertex where the upper base intersects with the other waist side of the trapezoidal ring (35). Pin holes (37) are provided on both sides of the mounting groove (36). An installation hole one is provided at the top end of the grip rod (39), and the top end of the grip rod (39) is fixedly arranged in the mounting groove (36) through a limiting mechanism composed of the pin hole (37), the installation hole one, and a pin bolt. The grip rod (39) forms a rotating structure with the pin bolt as the axis. The bottom of the inner support arm (2) passes through the through groove on the trapezoidal ring (35) and is fixedly connected to the front end of the grip rod (39).

9. The long-arm railway rolling cage buckle fastening pliers according to claim 8, characterized in that: The bottom of the inner support arm (2) is fixedly connected to a clamping member (38). The clamping member (38) has a U-shaped structure, and limiting holes are provided at both ends. An installation hole two is provided at the front end of the grip rod (39). The clamping member (38), the limiting holes, the installation hole two, and a limiting bolt form a limiting structure. The front end of the grip rod (39) forms a rotating structure with the limiting bolt as the axis.

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