Hand-held impact type eccentric bushing dismounting device

Abstract

The utility model discloses a handheld impact type eccentric bushing dismounting device which comprises a handle, a connecting rod body connected to the lower portion of the handle, a dismounting locking mechanism and a hook claw combination body. The dismounting and locking mechanism is connected between the connecting rod body and the hook claw combination body; a pull ring is arranged on the inner side of the handle, and one end of the pull ring is connected with a pull rod arranged in the connecting rod body. A locking cone is connected to one end of the pull rod, at least two drag hooks are connected to the outer side of the locking cone in a matched mode, the locking cone synchronously pushes the drag hooks to stretch out or retract when moving in the axial direction of the first connecting rod body, and the drag hooks are clamped in dismounting grooves in the bottom of the eccentric sleeve when stretching out; the pull ring of the impact type dismounting device is held by a hand to drive the pull hook on the outer side of the dismounting mechanism to stretch out and draw back, so that the dismounting groove in the eccentric bushing is hooked, the eccentric bushing is accurately fixed, and the dismounting efficiency and the practicability of the dismounting device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of eccentric sleeve disassembly, and more specifically to a hand-held impact-type eccentric sleeve disassembly device. Background Art

[0002] The eccentric sleeve is an essential component in the turnout fastener system. Due to the extremely busy rail transit in my country, the increasing train operation density, and the aging and wear of the eccentric sleeve itself, the eccentric sleeve needs to be frequently disassembled and replaced to meet the high smoothness requirements of the line.

[0003] However, because the eccentric sleeve is installed very firmly, especially after long-term use, the eccentric sleeve of the turnout is subjected to train loads for a long time, causing the eccentric sleeve to often adhere to the turnout base plate and easily adhere to the bolt hole structure in the concrete sleeper, making it very difficult to remove. At present, when disassembling and replacing, tools such as hooks, crowbars, and chisels are basically used to violently remove it by hammering, prying, etc. This operation is very difficult and can easily damage the surrounding fastener system components. It usually requires the cooperation of multiple people and takes a long time to remove, which is not only labor-intensive but also inefficient. Utility Model Content

[0004] In order to solve at least one of the above technical problems, the present invention proposes a grip-impact type eccentric sleeve disassembly device.

[0005] The first aspect of the utility model provides a hand-held impact type eccentric sleeve removal device, comprising: a handle, a connecting rod body connected below the handle, a disassembly locking mechanism and a hook claw assembly;

[0006] The disassembly locking mechanism is connected between the connecting rod body and the hook claw assembly;

[0007] A pull ring is provided on the inner side of the handle, one end of the pull ring is connected to a pull rod, and the pull rod is provided inside the connecting rod body;

[0008] One end of the pull rod is connected to a locking cone, and the outer side of the disassembly locking mechanism is cooperatively connected to at least two draw hooks. When the locking cone moves along the axial direction of the connecting rod body, it synchronously pushes the draw hook to extend or retract. When the draw hook is extended, it is stuck in the disassembly groove at the bottom of the eccentric sleeve.

[0009] In a preferred embodiment of the present invention, a hook claw reset clamp is provided inside the hook claw assembly, a mounting sleeve is provided on the outside of the hook claw reset clamp, and the draw hook is mounted in the mounting groove at the waist of the mounting sleeve through a hinge.

[0010] In a preferred embodiment of the present invention, a hook claw reset snap ring is provided inside the hook claw assembly, the end of the hook claw reset snap ring is embedded in the hole at the top of the hook claw, and the hook claw is installed in the waist slot of the mounting frame through a hinge. When not in working condition, the hook claw is in a tightened state.

[0011] In a preferred embodiment of the present invention, an upper limit boss is provided on the inner top of the handle, and an upper limit groove is provided on the top of the pull ring, and the upper limit groove cooperates with the upper limit boss.

[0012] In a preferred embodiment of the present invention, a lower limiting boss is provided at the inner bottom of the handle, and a lower limiting groove is provided at the bottom of the pull ring, and the lower limiting boss cooperates with the lower limiting groove.

[0013] In a preferred embodiment of the present invention, the hook assembly is composed of two hooks and a mounting sleeve connected by a hinge, a reset spring is installed at the upper end of the hook, the lower end of the hook is close to the locking cone, the relative position of the hook and the mounting sleeve is adjusted by adjusting the locking nut, and the upper part of the mounting sleeve is connected to the connecting rod body by a thread.

[0014] In a preferred embodiment of the present invention, top return springs are provided at both ends of the top of the pull ring, and the other end of the top return spring is connected to the top of the handle.

[0015] In a preferred embodiment of the present invention, an impact hammer is provided on the outside of the connecting rod, which can slide along the outer wall of the connecting rod and manually move upward to impact the handle using its inertia.

[0016] The above technical solution of the utility model has the following advantages compared with the prior art:

[0017] By holding the pull ring of the impact type disassembly device, the pull hook on the outside of the disassembly mechanism is driven to extend and retract, thereby hooking the disassembly groove on the eccentric sleeve, thereby accurately fixing the eccentric sleeve, improving the disassembly efficiency and the practicality of the disassembly device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, some of the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the hand-held impact type eccentric sleeve removal device according to an embodiment of the present utility model;

[0020] Figure 2This is a schematic diagram of the movement trajectory of the wristband inside the handle;

[0021] Figure 3 This is a schematic diagram of the appearance of the hook assembly implemented in the present utility model;

[0022] Figure 4 This is a schematic diagram of the working principle of the locking cone and the hook in the utility model;

[0023] Figure 5 It is a schematic structural diagram of an eccentric sleeve according to an embodiment of the present utility model.

[0024] In the figure, 1. handle, 2. pull ring, 3. connecting rod body, 4. impact hammer, 5. disassembly hook, 6. hook mounting sleeve, 7. hook reset snap ring, 8. hook hinge pin, 9. locking rod, 10. locking cone, 11. locking nut, 12. top return spring, 13. upper limit groove, 14. upper limit boss, 15. lower limit boss, 16. lower limit groove, 17. pull rod pin, 18. eccentric sleeve, 19. disassembly groove. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0027] Example 1

[0028] See also Figure 1-Figure 5 As shown, the utility model proposes a hand-held impact eccentric sleeve disassembly device, comprising: a handle 1 and a connecting rod body 4, a disassembly hook 5 and a hook sleeve 6 connected to the bottom of the handle 1; the disassembly hook 5 is installed in the waist groove of the hook installation sleeve 6 with a hinge; a pull ring 2 is provided on the inner side of the handle 1, and one end of the pull ring 2 is connected to a pull rod 9 by a pull rod pin 17, and the pull rod 9 is arranged inside the connecting rod body 3; one end of the pull rod 9 is connected to a locking cone 10, and at least two disassembly hooks 5 are connected to the outside of the locking cone 10. When the locking cone 10 moves in the axial direction of the connecting rod body 4, it synchronously pushes the disassembly hook 5 to extend or retract, and when the disassembly hook 5 is extended, it is stuck in the disassembly groove 19 at the bottom of the eccentric sleeve 18.

[0029] According to the embodiment of the present invention, a hook reset snap ring 7 is provided inside the disassembly hook 5, and the outer side of the hook reset snap ring 7 is connected to the top of the disassembly hook 5. The disassembly hook 5 is installed at the waist of the hook mounting sleeve 6 by a hook hinge pin 8. When not in operation, the disassembly hook 5 is in the retracted state.

[0030] According to an embodiment of the present utility model, an upper limit boss 13 is provided at the top inner side of the handle 1, and an upper limit groove 14 is provided at the top of the pull ring 2, which cooperates with the upper limit boss 13; a lower limit boss 15 is provided at the bottom inner side of the handle 1, and a lower limit groove 16 is provided at the bottom of the pull ring 2, which cooperates with the lower limit boss 15.

[0031] It should be noted that when the upper limit groove 13 on the top of the pull ring 2 is locked to the upper limit boss 14, it means that the locking cone 10 moves upward and pushes the pull hook 8 to open to the maximum opening. Conversely, when the lower limit groove 16 is locked to the lower limit boss 15, the disassembly hook 5 retracts.

[0032] According to an embodiment of the present invention, top return springs 12 are provided at both ends of the top of the pull ring 2 , and the other end of the top return spring 12 is connected to the top of the handle 1 .

[0033] According to an embodiment of the present invention, an impact hammer 4 is provided on the outer side of the connecting rod body 3 and at one end away from the handle 1 .

[0034] In summary, by holding the pull ring 2 of the impact-type disassembly device, the disassembly hook 5 on the outside of the locking cone 10 is driven to extend and retract, thereby hooking the disassembly groove 19 on the eccentric sleeve 18, thereby accurately fixing the eccentric sleeve 18, thereby improving the disassembly efficiency and the practicality of the disassembly device.

[0035] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to encompass the widest scope consistent with the principles and novel features disclosed herein.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A hand-held impact eccentric sleeve removal device, comprising: The handle and the connecting rod body and the heavy hammer connected below the handle, the disassembly locking mechanism and the hook claw assembly; characterized in that, A pull ring is provided on the inner side of the handle, one end of the pull ring is connected to a pull rod, and the other end is equipped with two return springs, and the pull rod is provided inside the connecting rod body; One end of the pull rod is connected to a locking cone, and the outer side of the disassembly locking mechanism is cooperatively connected to at least two draw hooks. When the locking cone moves along the axial direction of the connecting rod body, it synchronously pushes the draw hook to extend or retract. When the draw hook is extended, it is stuck in the disassembly groove at the bottom of the eccentric sleeve.

2. A hand-held impact eccentric sleeve removal device according to claim 1, characterized in that: A hook claw reset snap ring is provided inside the hook claw assembly, and a mounting sleeve is matched on the outside of the hook claw reset snap ring. The draw hook is mounted in the mounting groove of the waist of the mounting sleeve through a hinge.

3. The hand-held impact eccentric sleeve removal device according to claim 1, characterized in that: An impact hammer is provided on the outside of the connecting rod and can slide along the outer wall of the connecting rod. After the hook locks the eccentric sleeve, it is manually moved upward to impact the handle using its inertia.

4. The hand-held impact eccentric sleeve removal device according to claim 1, characterized in that: The hook assembly is connected by two hooks and a mounting sleeve through a hinge. The upper end of the hook is equipped with a reset spring, and the lower end of the hook is close to the locking cone. The relative position of the hook and the mounting sleeve is adjusted by adjusting the locking nut. The upper part of the mounting sleeve is connected to the connecting rod body through a thread.

5. The hand-held impact eccentric sleeve removal device according to claim 1, characterized in that: An upper limit boss is provided on the inner top of the handle, and an upper limit groove is provided on the top of the pull ring, and the upper limit groove cooperates with the upper limit boss.

6. The hand-held impact eccentric sleeve removal device according to claim 1, characterized in that: A lower limiting boss is provided at the bottom inner side of the handle, and a lower limiting groove is provided at the bottom of the pull ring, wherein the lower limiting boss matches the lower limiting groove.

7. The hand-held impact eccentric sleeve removal device according to claim 1, characterized in that: Top return springs are provided at both ends of the top of the pull ring, and the other end of the top return spring is connected to the top of the handle.

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