Auxiliary tool for disassembling bayonet lock

Abstract

The utility model relates to an auxiliary tool for dismounting a bayonet lock, which comprises a first tong head, a second tong head, a first handle, a second handle, a first end, a second end and a connecting piece, the first tong head and the second tong head are both provided with mounting holes, and the connecting piece is mounted in the mounting holes and rotationally connected with the first tong head and the second tong head. The first end is located at one end of the first tong head, the second end is located at one end of the second tong head, and the distance between the first end and the connecting piece is larger than that between the second end and the connecting piece. The length of the first end and the length of the second end are different, the first end and the second end act on the clamping pin hole and the outer hole of the plastic chain plate respectively, when the first handle and the second handle are pressed, the first end and the second end are opened by a certain angle, the second end is blocked by the wall of the outer hole and cannot be opened, and under the condition that only the first end can be opened, the plastic chain plate can be opened. The pressing force is converted into pushing force to the bayonet lock, and the bayonet lock is pushed out of the mounting groove of the plastic chain plate. And compared with a traditional bayonet lock, the disassembly efficiency is higher, the labor cost is lower, and the convenience is better.

Description

Technical Field

[0001] The utility model relates to the field of conveying equipment, in particular to a bayonet disassembly auxiliary tool. Background Art

[0002] Compared with traditional assembly line conveyor belts, plastic chain plates have many advantages. Plastic chain plates can be used for conveying operations in various environments, such as wide temperature range, good anti-sticking, adjustable baffles, large lifting angles, easy cleaning, simple maintenance, high strength, acid resistance, alkali resistance, salt water resistance, etc. They are widely used in the automotive industry, logistics industry, entertainment facilities, food industry, packaging industry, pharmaceutical industry, daily chemical industry, transmission conveyor belts, conveyor line equipment, etc. Plastic chain plates are assembled using chain plates made of engineering plastics. The modular chain plates are interlocked or brick-laid and assembled together by pins. This design fundamentally improves the strength of the conveyor belt. The baffles and side plates can also be interlocked with hinge pins to become one of the overall components of the conveyor belt.

[0003] However, in the later maintenance of the plastic chain plate, the plastic chain plate needs to be disassembled. The existing disassembly steps require the operator to use a thin flat-blade screwdriver to insert the flat-blade screwdriver into the buckle hole. At this time, one person is required to lift the plate strip on the side to operate. After aligning the hole, press the screwdriver down until the buckle is out of the plate strip, and then use needle-nosed pliers to clamp out the buckle. The traditional disassembly method is cumbersome, resulting in a decrease in the overall efficiency of disassembly and a great increase in labor costs. Utility Model Content

[0004] One of the purposes of the utility model is to provide a bayonet disassembly auxiliary tool to solve the problems of low efficiency and complicated steps in disassembly of plastic chain plates in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A pin removal auxiliary tool comprises a first pliers head, a second pliers head, a first handle, a second handle and a connecting piece, wherein the first pliers head and the second pliers head are both provided with a mounting hole, the connecting piece is installed in the mounting hole and is rotatably connected to the first pliers head and the second pliers head, the first handle is fixedly installed at one end of the first pliers head, the second handle is fixedly installed at one end of the second pliers head, the first handle and the second handle are located on the same side of the connecting piece, and the characteristic is that it also comprises a first end head and a second end head, the first end head is located at an end of the first pliers head away from the first handle, the second end head is located at an end of the second pliers head away from the second handle, the distance from the end of the first end head away from the connecting piece to the connecting piece is longer than the distance from the end of the second end head away from the connecting piece to the connecting piece, and when the first handle and the second handle are closed, the first end head and the second end head are opened to form a certain angle.

[0007] In the above technical solution, when disassembling the plastic chain plate pin, the operator presses the second handle of the tool with the palm and the first handle of the tool with the finger, and extends the end of the tool into the outer hole of the plastic chain plate. The first end is longer and can be inserted into the pin hole, and the second end is shorter and can only be pressed against the outer hole wall of the plastic chain plate. At this time, the operator presses the first handle and the second handle hard to close them. At this time, the first handle and the second handle will respectively drive the first pliers and the second pliers to rotate around the pin with the pin shaft as the fulcrum, and the first end and the second end located on the pliers will also rotate with it, and the two ends will open at a certain angle, but because the second end will be blocked by the outer hole wall of the plastic chain plate and cannot open, when only the first end can open, the operator's force is completely converted into a thrust on the pin, and the pin is pushed out of the mounting groove of the plastic chain plate, thereby realizing the disassembly of the pin. The tool simplifies the steps of disassembling the pin, greatly improves the efficiency of disassembling the pin, reduces labor costs, and is more convenient.

[0008] Preferably, the distance from the end of the first handle away from the connecting piece to the connecting piece is longer than the distance from the first end to the connecting piece, and the distance from the end of the second handle away from the connecting piece to the connecting piece is longer than the distance from the second end to the connecting piece. With the connecting piece as a fulcrum, the power arm is longer than the resistance arm, and the entire tool forms a labor-saving lever, which reduces the effort required to press the handle and is more convenient.

[0009] Preferably, the first end and the second end are provided with a first bending portion and a second bending portion respectively; the bending directions of the first bending portion and the second bending portion are biased towards the direction of the first pliers. When the user presses the first handle and the second handle so that the first pliers and the second pliers are opened at the same angle, the opening stroke of the bent end is longer, so that the bayonet is easier to be extended, and the convenience is better.

[0010] Preferably, the end of the second end away from the connector is tapered. The second end can adapt to external holes of different sizes and increase the contact area between the second end and the external hole, resulting in better force generation effect and better applicability.

[0011] Preferably, the connecting member is a pin, and the pin forms a hinge connection with the first clamp head and the second clamp head. The pin fixes the first clamp head and the second clamp head in the radial direction, and enables the first clamp head and the second clamp head to rotate axially, thereby achieving better stability.

[0012] Preferably, the first handle and the second handle are respectively provided with a first limiting protrusion and a second limiting protrusion on one side close to the connecting member. When the first handle and the second handle are closed to the limit, the first limiting protrusion and the second limiting protrusion abut against each other. When the first handle and the second handle are opened to the limit, the first end and the second end abut against each other. When the user presses the handle to the limit, due to the abutment of the limiting protrusions, there is a certain distance between the first handle and the second handle, thereby avoiding the phenomenon of pinching the hand due to the user pressing the handle too hard, and providing better safety. When the first handle and the second handle are opened to the limit, the first end and the second end abut against each other, which plays a role of limiting, and limits the axial rotation of the first end and the second end when the tool is in a stationary state. It is more convenient.

[0013] Preferably, an elastic member is further included, and the elastic member is used to maintain the first handle and the second handle in an open state when at rest. When closing, the elastic member is compressed, so that after the operator uses the tool to remove a latch, the first handle and the second handle will return to their initial positions under the elastic force of the elastic member, without manual adjustment, which is more convenient.

[0014] Preferably, the elastic member is a torsion spring, the coil of the torsion spring is wound around the connecting member, and the ends of the torsion spring are respectively fixed to the first handle and the second handle. When the user presses the handle, the torsion spring is in a compressed state, and the torsion spring generates a thrust on the first handle and the second handle. After the handle is released, the first handle and the second handle return to their original positions under the thrust generated by the torsion spring, which is more convenient. The coil of the torsion spring is wound around the pin, so that the torsion spring has better stability.

[0015] Preferably, the outer surfaces of the first handle and the second handle are arc-shaped, which fits the palm of the user better, increases the contact area between the handle and the palm of the user, has a better force effect, reduces pressure, greatly reduces the pain caused by long-term use, and is more convenient.

[0016] Preferably, the outer surfaces of the first handle and the second handle are coated with anti-slip material, which increases the friction between the palm of the user and the handle, avoids the handle slipping out of the hand during the pressing process and thus causes harm to the user, and improves safety.

[0017] The beneficial effects of the utility model are as follows: the first end and the second end are of different lengths, so when the bayonet is removed, the first end acts on the bayonet hole, and the second end acts on the outer hole of the plastic chain plate. When the first handle and the second handle are closed, the first end and the second end are opened to form a certain angle, and the second end is subjected to the reaction force of the outer hole wall of the plastic chain plate. The first end applies a thrust to the bayonet, and pushes the bayonet out of the installation groove of the plastic chain plate, thereby realizing the removal of the bayonet. Compared with the traditional screwdriver removal, the tool simplifies the bayonet removal steps, greatly improves the efficiency of bayonet removal, reduces labor costs, and is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a bayonet removal auxiliary tool of the utility model;

[0019] Figure 2 This is a working state diagram of a bayonet removal auxiliary tool of the utility model;

[0020] Figure 3 It is a schematic diagram of another embodiment of the elastic member of the utility model.

[0021] Among them, 1. first pliers head; 2. second pliers head; 3. first handle; 4. second handle; 5. connecting piece; 6. first end head; 7. second end head; 8. first bending part; 9. second bending part; 10. first limiting protrusion; 11. second limiting protrusion; 12. elastic member; 13. plastic chain plate; 14. latch. DETAILED DESCRIPTION

[0022] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0024] Example 1

[0025] like Figure 1-2The figure shows an embodiment 1 of a bayonet removal auxiliary tool, comprising a first pliers head 1, a second pliers head 2, a first handle 3, a second handle 4, a first end 6, a second end 7, a connecting piece 5 and an elastic piece 12. The first pliers head 1 and the second pliers head 2 are both provided with mounting holes. The connecting piece 5 is installed in the mounting holes and is rotatably connected to the upper pliers head and the lower pliers head. In this embodiment, the connecting piece 5 is a pin shaft, and the pin shaft forms a hinge connection with the first pliers head 1 and the second pliers head 2. The connecting piece here can also be a pin or any cylindrical piece. The first handle 3 is fixedly mounted on one end of the first pliers head 1, and the second handle 4 is fixedly mounted on one end of the second pliers head 2. The above-mentioned fixing method is a rivet connection. In addition, it can also be welding, integral molding, etc. The first handle 3 and the second handle 4 are located on the same side of the connecting piece 5, the first end 6 is fixedly mounted on the end of the first pliers head 1 away from the first handle 3, and the second end 7 is fixed It is installed on the end of the second pliers 2 away from the second handle 4, and the connection method is one-piece molding, and it can also be a welding threaded connection, etc. The distance from the end of the first end 6 away from the connecting member 5 to the connecting member 5 is longer than the distance from the end of the second end 7 away from the connecting member 5 to the connecting member 5. When the first handle 3 and the second handle 4 are closed, the first end 6 and the second end 7 are opened to form a certain angle, and the distance from the end of the first handle 3 away from the connecting member 5 to the connecting member 5 is longer than the distance from the first end 6 to the connecting member 5, and the distance from the end of the second handle 4 away from the connecting member 5 to the connecting member 5 is longer than the distance from the second end 7 to the connecting member 5. The first end 6 and the second end 7 are respectively provided with a first bending portion 8 and a second bending portion 9, and the bending direction of the first bending portion 8 and the second bending portion 9 is biased towards the direction of the first pliers 1, and the end of the second end 7 away from the connecting member 5 is tapered.

[0026] Specifically, when performing the plastic chain plate latch disassembly work, the operator presses the second handle 4 of the tool with the palm of his hand and the first handle 3 of the tool with his fingers, and extends the end of the tool into the outer hole of the plastic chain plate 13, the first end 6 can extend into the hole of the latch 14, and the second end 7 presses against the outer hole wall of the plastic chain plate. The second end 7 is tapered, which will make the second end 7 more firmly stuck in the outer hole wall of the plastic chain plate 13. At this time, the operator presses the first handle 3 and the second handle 4 hard to close them. At this time, the first handle 3 and the second handle 4 will respectively drive the first pliers 1 and the second pliers 2 to rotate around the pin shaft with the pin shaft as the fulcrum, and the first end 6 and the second end 7 located on the pliers heads will also rotate accordingly, and a certain angle will be opened between the two ends, but the second end 7 will be blocked by the outer hole wall and cannot be opened. When only the first end 6 can be opened, the operator's force is completely converted into a thrust on the latch 14 and the thrust direction is as follows Figure 2As shown, the bayonet 14 is pushed out of the mounting groove of the plastic chain plate 13 vertically downward. The bayonet 14 is disassembled. The setting of the bending part allows the first pliers 1 and the second pliers 2 to open to the same angle when the user presses the first handle 3 and the second handle 4. The opening stroke of the bent end is longer, making it easier to push out the bayonet 14, which is more convenient. The distance from the end of the first handle 3 away from the connecting member 5 to the connecting member 5 is longer than the distance from the first end 6 to the connecting member 5; the distance from the end of the second handle 4 away from the connecting member 5 to the connecting member 5 is longer than the distance from the second end 7 to the connecting member 5. With the connecting member 5 as the fulcrum, the power arm of the device is longer than its resistance arm, and the entire device forms a labor-saving lever, which reduces the operating effort and is more convenient.

[0027] Beneficial effects of this embodiment: Compared with the traditional screwdriver disassembly, the tool simplifies the disassembly steps of the bayonet pin, greatly improves the overall efficiency of the bayonet pin disassembly, reduces labor costs, and is more convenient. The design of the bending portion allows the two ends to open longer, making it easier for the bayonet pin 14 to be extended, which is more convenient. The end of the second end 7 away from the connector 5 is tapered, so that it can adapt to the outer holes of the plastic chain plates 13 of different sizes and has a larger contact area, better force effect, and better applicability. At the same time, the tool uses the connector 5 as a fulcrum, and the power arm of the device is longer than its resistance arm. The entire device forms a labor-saving lever, which reduces the operating force and is more convenient.

[0028] Example 2

[0029] Embodiment 2 of a bayonet removal auxiliary tool differs from Embodiment 1 in that it further includes an elastic member 12, which is used to maintain the first handle 3 and the second handle 4 in an open state when stationary. In this embodiment, the elastic member 12 is a V-shaped torsion spring, the coil of which is wound around the pin, and the ends of which are respectively fixed to the first handle 3 and the second handle 4. When the user presses the first handle 3 and the second handle 4, the V-shaped torsion spring is in a compressed state, which will generate thrust on the two handles. After releasing the handles, the first handle 3 and the second handle 4 will return to their original positions under the action of the thrust generated by the V-shaped torsion spring, which is more convenient. The coil of the V-shaped torsion spring is wound around the pin, which makes the torsion spring more stable.

[0030] Here, another embodiment of the elastic member 12 is provided, such as Figure 3As shown, in this embodiment, the elastic member 12 is a cylindrical coil spring, one end of the cylindrical coil spring is installed between the first end 6 and the connecting member 5 on the first pliers 1, and the other end is installed between the second end 7 and the connecting member 5 on the second pliers 2. When the user presses the first handle 3 and the second handle 4, the first pliers 1 and the second pliers 2 will move closer, and the cylindrical coil spring will be in a stretched state. The two ends of the cylindrical coil spring will respectively generate pulling force on the first pliers 1 and the second pliers 2. When the user releases the handle, the first handle 3 and the second handle 4 will return to their original positions under the action of the pulling force generated by the cylindrical coil spring. However, the limitation of this embodiment is that the stability of the cylindrical coil spring is not good enough.

[0031] The remaining features and technical effects of the above implementation are consistent with those of Example 1.

[0032] Example 3

[0033] Embodiment 3 of a bayonet removal auxiliary tool is different from Embodiment 1 and Embodiment 2 in that the outer surfaces of the first handle 3 and the second handle 4 are arc-shaped, and the outer surfaces of the first handle 3 and the second handle 4 are wrapped with anti-skid material. The arc-shaped outer surface fits the palm of the user more closely, increases the contact area between the handle and the palm of the user, and has a better force effect, while reducing the pressure, greatly reducing the pain caused by long-term use, and is more convenient. The anti-skid material increases the friction between the palm of the user and the handle, avoiding the handle from slipping out of the hand during the pressing process, thereby causing harm to the user, and is safer.

[0034] The remaining features and technical effects of this embodiment are consistent with those of Embodiment 1 and Embodiment 2.

[0035] Example 4

[0036] Embodiment 4 of a latch disassembly auxiliary tool differs from embodiment 1 in that it further comprises an elastic member 12, which is used to maintain the first handle 3 and the second handle 4 in an open state when stationary. In this embodiment, the elastic member 12 is a V-shaped torsion spring, the coil of which is wound around the pin, and the ends of the V-shaped torsion spring are respectively fixed to the first handle 3 and the second handle 4. The first handle 3 and the second handle 4 are respectively provided with a first limiting protrusion 10 and a second limiting protrusion 11 on one side close to the connecting member 5; when the first handle 3 and the second handle 4 are closed to the limit, the first limiting protrusion 10 and the second limiting protrusion 11 abut against each other, and when the first handle 3 and the second handle 4 are opened to the limit, the first end 6 and the second end 7 abut against each other. By setting the limiting protrusion, when the first handle 3 and the second handle 4 are closed to the limit, a certain distance is formed between the first handle 3 and the second handle 4, so as to avoid the phenomenon of pinching the hand caused by the user pressing the handle too hard, and the safety is better. When the user releases his hands, the first handle 3 and the second handle 4 will return to their original positions under the thrust generated by the V-shaped torsion spring. At this time, the first end 6 and the second end 7 abut against each other, which plays a role of limiting, limiting the axial rotation of the first end 6 and the second end 7 when the tool is in a stationary state, avoiding the need to reset the two ends before each use of the tool, which is more convenient.

[0037] The remaining features and technical effects of this embodiment are consistent with those of Embodiment 1.

[0038] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A bayonet removal auxiliary tool, comprising a first pliers head (1), a second pliers head (2), a first handle (3), a second handle (4) and a connecting piece (5), wherein the first pliers head (1) and the second pliers head (2) are both provided with mounting holes; the connecting piece (5) is installed in the mounting hole and is rotatably connected to the first pliers head (1) and the second pliers head (2); the first handle (3) is fixedly installed at one end of the first pliers head (1); the second handle (4) is fixedly installed at one end of the second pliers head (2); the first handle (3) and the second handle (4) are located on the same side of the connecting piece (5); characterized in that The invention also comprises a first end head (6) and a second end head (7), wherein the first end head (6) is fixedly connected to an end of the first pliers head (1) away from the first handle (3); the second end head (7) is fixedly connected to an end of the second pliers head (2) away from the second handle (4); the distance from the end of the first end head (6) away from the connecting member (5) to the connecting member (5) is longer than the distance from the end of the second end head (7) away from the connecting member (5) to the connecting member (5); when the first handle (3) and the second handle (4) are closed, the first end head (6) and the second end head (7) are opened to form a certain angle.

2. A bayonet removal auxiliary tool according to claim 1, characterized in that: The distance from the end of the first handle (3) away from the connecting member (5) to the connecting member (5) is longer than the distance from the first end (6) to the connecting member (5); the distance from the end of the second handle (4) away from the connecting member (5) to the connecting member (5) is longer than the distance from the second end (7) to the connecting member (5).

3. The bayonet removal auxiliary tool according to claim 1, characterized in that: The first end head (6) and the second end head (7) are respectively provided with a first bending portion (8) and a second bending portion (9); the bending directions of the first bending portion (8) and the second bending portion (9) are biased towards the direction where the first clamp head (1) is located.

4. The bayonet removal auxiliary tool according to claim 1, characterized in that: The end of the second end cap (7) away from the connecting member (5) is tapered.

5. The bayonet removal auxiliary tool according to claim 1, characterized in that: The connecting member (5) is a pin, and the pin forms a hinge connection with the first clamp head (1) and the second clamp head (2).

6. The bayonet removal auxiliary tool according to claim 1, characterized in that: A first limiting protrusion (10) and a second limiting protrusion (11) are respectively provided on one side of the first handle (3) and the second handle (4) close to the connecting member (5); when the first handle (3) and the second handle (4) are closed to the limit, the first limiting protrusion (10) and the second limiting protrusion (11) abut against each other; when the first handle (3) and the second handle (4) are opened to the limit, the first end (6) and the second end (7) abut against each other.

7. The bayonet removal auxiliary tool according to claim 1, characterized in that: It also comprises an elastic member (12), wherein the elastic member (12) is used to maintain the first handle (3) and the second handle (4) in an open state when at rest.

8. The bayonet removal auxiliary tool according to claim 7, characterized in that: The elastic member (12) is a torsion spring, the coil of which is wound around a connecting member; the ends of the torsion spring are respectively fixed to the first handle (3) and the second handle (4).

9. A bayonet removal auxiliary tool according to any one of claims 1 to 8, characterized in that: The outer surfaces of the first handle (3) and the second handle (4) are arc-shaped.

10. A bayonet removal auxiliary tool according to claim 9, characterized in that: The outer surfaces of the first handle (3) and the second handle (4) are wrapped with anti-slip material.

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