Pull hammer type tool special for dismantling U-shaped pin

Abstract

The utility model provides a pull hammer type special tool for dismantling a U-shaped pin, relates to the technical field of underground coal mine overhaul tools, and aims to solve the problem that when the U-shaped pin needs to be dismantled during equipment overhaul or pipeline replacement, an underground common method is that an air pick tip, a sledge hammer, a crowbar and other tools are matched for operation to separate the U-shaped pin from a hydraulic support, so that the U-shaped pin cannot be dismantled. According to the method, the problems that many tools are used, and operation procedures are complex are solved. A collision dismounting part is arranged outside the external control part; and a hook pin part is arranged at the bottom of the external control part. The two sets of impact blocks are connected to the middle connecting block and the manual control sliding block in a threaded mode correspondingly, the two sets of impact blocks are controlled to conduct impact treatment while the manual control sliding block is adjusted to conduct displacement, external impact treatment is conducted on the external control part through impact force, and the U-shaped pin can be conveniently dismantled through the impact force in an auxiliary mode; and impact force is prevented from directly acting on the connecting position of the middle connecting block and the guide sliding rod under the action of the impact block, and the connecting position of the middle connecting block and the guide sliding rod is prevented from being broken after long-time use.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground maintenance tools in coal mines, and more specifically, particularly relates to a pull-hammer type special tool for removing a U-shaped pin. Background Art

[0002] In the support and pipeline fixation of the comprehensive mining working face, the pipeline components are corroded and adhered to the U-shaped pins due to the humid underground environment. At the same time, considering the long mining time of the working face and the long-term stress deformation of the U-shaped pins, the U-shaped pins are difficult to remove during the disassembly and recovery of the equipment. In order to facilitate the removal of the U-shaped pins, a special tool is required.

[0003] Based on the findings in the prior art, when the U-pin needs to be removed for equipment maintenance or pipeline replacement, the commonly used method underground is to use tools such as pneumatic pick tips, sledgehammers, crowbars, etc. to separate the U-pin from the hydraulic support. This method not only uses a variety of tools and has complicated operating procedures, but also requires a large number of personnel and has low operating efficiency, which seriously restricts the improvement of overall operating efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the embodiments of the present invention relate to a special tool for removing U-pins with a pull hammer, so as to solve the problem that when the U-pin needs to be removed for equipment maintenance or pipeline replacement, the commonly used method underground is to use tools such as pneumatic pick tips, sledgehammers, crowbars, etc. to cooperate in the operation to separate the U-pin from the hydraulic support. This method not only uses a variety of tools and has complicated operating procedures, but also requires a large number of personnel and has low operating efficiency, which seriously restricts the improvement of overall operating efficiency.

[0005] In a first aspect of the present disclosure, a pull-hammer type special tool for removing a U-shaped pin is provided, which is achieved by the following specific technical means:

[0006] A pull-hammer type special tool for removing U-shaped pins, comprising: an external control part; the external control part comprises a middle connection block, a guide slide rod and a stabilizing slide groove; the guide slide rod is set as a cylindrical rod-shaped structure, the bottom of the guide slide rod is provided with a threaded rod-shaped protrusion, and the guide slide rod is fixed to the bottom of the threaded rod-shaped protrusion of the middle connection block; the outside of the external control part is provided with a knock-out part, and the knock-out part comprises a manual slide cylinder, a constraint plug block and a knock-out block; the manual slide cylinder is slidably connected to the outside of the guide slide rod, the manual slide cylinder is slidably connected to the inside of the stabilizing slide groove, and the constraint plug block ... Connected to the inside of the stable slide groove, the impact block is threadedly connected to the bottom of the middle block; the impact block is arranged as a cylindrical structure, a circular ring-shaped protrusion is arranged on the outer wall of the impact block, a reinforcement plate is arranged on the outer wall of the impact block, a threaded groove is opened on the inner wall of the impact block, and there are two groups of impact blocks in total, one group of impact blocks is threadedly connected to the top of the manual slide; a hook pin part is arranged at the bottom of the external control part, and the hook pin part includes a hook pin block and a docking groove; the hook pin block is threadedly connected to the bottom of the guide slide rod, and the guide slide rod is threadedly connected in the docking groove.

[0007] At least in some embodiments, the external control part also includes an external control handle; the middle connecting block is configured as a rectangular block structure, a threaded groove is provided on the outer wall of the middle connecting block, and a threaded rod-shaped protrusion is provided at the bottom of the middle connecting block; the external control handle is configured as a cylindrical structure, a threaded rod-shaped protrusion is provided at the bottom of the external control handle, and there are two groups of external control handles, which are respectively threadedly connected in the threaded groove of the middle connecting block.

[0008] At least in some embodiments, the stabilizing slide groove is configured as a rectangular groove, the inner wall of the stabilizing slide groove is connected with a rectangular groove, and there are two groups of stabilizing slide grooves, which are respectively opened on the outer wall of the guide slide rod.

[0009] At least in some embodiments, the collision and demolition part also includes an alignment groove; the manual control slide is configured as a cylindrical structure, two groups of rectangular protrusions are provided on the inner wall of the manual control slide, a circular protrusion is provided on the outer wall of the manual control slide, and a thread is provided on the outer wall of the manual control slide; the alignment groove is configured as a hemispherical groove, and there are two groups of alignment grooves in total, and the two groups of alignment grooves are respectively opened on the two groups of rectangular protrusions on the inner wall of the manual control slide.

[0010] At least in some embodiments, the constraint plug is configured as a cylindrical structure, a rectangular protrusion is provided on the constraint plug, a spring is provided on the constraint plug, and two groups of constraint plugs are provided, and the two groups of constraint plugs are respectively clamped in the alignment grooves.

[0011] At least in some embodiments, the hook pin block is configured as a hook-shaped structure, and a cylindrical protrusion is provided on the hook pin block; the docking groove is configured as a cylindrical groove, the docking groove is connected with a threaded groove, and the docking groove is opened inside the cylindrical protrusion of the hook pin block.

[0012] The pull-hammer type special tool for removing U-shaped pins proposed by the utility model has the following beneficial effects:

[0013] 1. A manual slide and an impact block are provided. By threading two groups of impact blocks on the middle block and the manual slide block respectively, the two groups of impact blocks can be controlled to impact while adjusting the displacement of the manual slide block. The impact force is used to impact the outer control part, which is convenient for removing the U-shaped pin with the assistance of the impact force. Under the action of the impact block, the impact force is prevented from directly acting on the connection position between the middle block and the guide slide rod, so as to avoid the connection position between the two from breaking after long-term use;

[0014] 2. A constraint plug and a stabilizing groove are provided. By opening a stabilizing groove on the outer wall of the guide slide rod, the manual slide can be adjusted conveniently. By opening an alignment groove inside the manual slide, the constraint plug is inserted into the alignment groove under the action of a spring, so as to restrain the manual slide and prevent it from being adjusted at will when idle, thereby avoiding unnecessary wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional assembly structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional assembly structure of the utility model when viewed from above.

[0017] Figure 3 It is a schematic diagram of the exploded structure of the utility model.

[0018] Figure 4 It is a schematic diagram of the exploded structure of the utility model when viewed from above.

[0019] Figure 5 It is a partial cutaway structural schematic diagram of the utility model.

[0020] Figure 6 The utility model is Figure 5 Schematic diagram of the enlarged structure of part A.

[0021] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0022] 1. External control part; 101. Middle connecting block; 102. External control handle; 103. Guide slide bar; 104. Stable slide groove;

[0023] 2. knock-down unit; 201. hand-operated slide; 202. alignment slot; 203. restraining plug; 204. knock-down block;

[0024] 3. Hook pin portion; 301. Hook pin block; 302. Docking groove. DETAILED DESCRIPTION

[0025] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0026] Embodiment 1: As shown in the attached Figure 1 To Attachment Figure 6As shown: the utility model provides a pull-hammer type special tool for removing U-pins, comprising: an external control part 1; the external control part 1 comprises a middle connection block 101, a guide slide bar 103 and a stabilizing slide groove 104; the guide slide bar 103 is set as a cylindrical rod-shaped structure, and the bottom of the guide slide bar 103 is provided with a threaded rod-shaped protrusion, and the guide slide bar 103 is fixedly connected to the bottom of the threaded rod-shaped protrusion of the middle connection block 101; the guide slide bar 103 is used to assist in the installation and fixation of the knock-out part 2 as a whole, so that it is convenient for adjustment; the knock-out part 2 is provided on the outside of the external control part 1, and the knock-out part 2 comprises a manual slide cylinder 201, a constraint plug block 203 and a knock block 204; the manual slide cylinder 201 is slidably connected to the outside of the guide slide rod 103, the manual slide cylinder 201 is slidably connected to the inside of the stabilizing slide groove 104, and the constraint plug block 203 is slidably connected to the stabilizing slide groove 1 04, the impact block 204 is threadedly connected to the bottom of the middle block 101; the impact block 204 is set as a cylindrical structure, the outer wall of the impact block 204 is provided with a circular ring-shaped protrusion, the outer wall of the impact block 204 is provided with a reinforcement plate, the inner wall of the impact block 204 is provided with a threaded groove, and there are two groups of impact blocks 204, one group of impact blocks 204 is threadedly connected to the top of the manual slide 201; the impact block 204 is used to perform impact processing under the drive of the manual slide 201, and the U-pin has been removed by the impact force in conjunction with the hook pin part 3, so as to facilitate its use; a hook pin part 3 is provided at the bottom of the external control part 1, and the hook pin part 3 includes a hook pin block 301 and a docking groove 302; the hook pin block 301 is threadedly connected to the bottom of the guide slide 103, and the guide slide 103 is threadedly connected to the docking groove 302.

[0027] Embodiment 2: Based on Embodiment 1, Figure 3 , Figure 5 and Figure 6 As shown, the external control part 1 also includes an external control handle 102; the middle block 101 is set as a rectangular block structure, a threaded groove is opened on the outer wall of the middle block 101, and a threaded rod-shaped protrusion is provided at the bottom of the middle block 101; the middle block 101 is used to fix the external control handle 102 and the guide slide rod 103 to facilitate their use; the external control handle 102 is set as a cylindrical structure, and a threaded rod-shaped protrusion is provided at the bottom of the external control handle 102. There are two groups of external control handles 102, and the two groups of external control handles 102 are respectively The threaded connection is in the threaded groove of the middle block 101; the external control handle 102 is used to assist in the manipulation of the entire device to facilitate its overall stability; the stable slide groove 104 is set as a rectangular groove, and the inner wall of the stable slide groove 104 is connected with a rectangular groove. There are two groups of stable slide grooves 104, and the two groups of stable slide grooves 104 are respectively opened on the outer wall of the guide slide rod 103; the stable slide groove 104 is used to assist in fixing the hand-controlled slide cylinder 201, so that it is convenient to adjust.

[0028] In the embodiments of the present disclosure, Figure 5 and Figure 6As shown, the knocking and dismantling part 2 also includes an alignment groove 202; the manual slide 201 is set as a cylindrical structure, and two groups of rectangular protrusions are provided on the inner wall of the manual slide 201, and an annular protrusion is provided on the outer wall of the manual slide 201, and a thread is provided on the outer wall of the manual slide 201; the manual slide 201 is used to drive the impact block 204 to adjust, so as to facilitate the control of the impact block 204 to perform the impact processing, thereby assisting the disassembly processing of the U-shaped pin; the alignment groove 202 is set as a hemispherical groove, and the alignment groove 202 is provided with two groups, and the two groups of alignment grooves 202 are respectively opened on the inner wall of the manual slide 201 The two groups of rectangular protrusions are on the two groups; the alignment groove 202 is used to assist in constraining the constraint plug 203, so as to cooperate with the constraint plug 203 to constrain the hand-controlled slide 201, so as to maintain its stability in the idle state; the constraint plug 203 is set as a cylindrical structure, the constraint plug 203 is provided with a rectangular protrusion, the constraint plug 203 is provided with a spring, and the constraint plug 203 is provided with two groups, and the two groups of constraint plugs 203 are respectively stuck in the alignment groove 202; the constraint plug 203 is used to cooperate with the alignment groove 202 to constrain the hand-controlled slide 201, so as to maintain its stability in the idle state.

[0029] In the embodiments of the present disclosure, Figure 5 As shown, the hook pin block 301 is set as a hook-shaped structure, and a cylindrical protrusion is provided on the hook pin block 301; the hook pin block 301 is used to connect the U-shaped pin so as to cooperate with the external control part 1 and the collision and removal part 2 to remove it; the docking groove 302 is set with a cylindrical groove, and the docking groove 302 is connected with a threaded groove, and the docking groove 302 is opened inside the cylindrical protrusion of the hook pin block 301; the docking groove 302 is used to assist the hook pin block 301 to connect with the guide slide rod 103.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present invention, during assembly, one set of impact blocks 204 is threadedly connected to the middle block 101, and another set of threads is threadedly connected to the hand-controlled slide 201, and then the outer control handle 102 is threadedly connected to the middle block 101, and then the hand-controlled slide 201 is slidably connected to the outer wall of the guide slide 103, and the hook pin block 301 is threadedly connected to the bottom of the guide slide 103 through the docking groove 302;

[0032] When in use, the hook pin block 301 is connected to the external U-shaped pin, and then the overall stability of the device is maintained by holding the external control handle 102, and then the manual slide 201 is slid back and forth, so that the manual slide 201 controls the two groups of impact blocks 204 to perform impact processing during the sliding process, and the U-shaped pin is pulled out by the impact force during the impact process to complete the removal of the U-shaped pin. In the idle state, the manual slide 201 is controlled to align the alignment groove 202 with the constraint block 203, so that the constraint block 203 is inserted in the alignment groove 202 under the action of the spring, which is convenient for restraining the manual slide 201.

[0033] In this article, there are a few points to note:

[0034] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0035] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0036] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. Pull hammer type special tool for removing U-pins, include: The external control part (1) is characterized in that: the external control part (1) comprises a middle connection block (101), a guide slide bar (103) and a stabilizing slide groove (104); the guide slide bar (103) is set as a cylindrical rod-shaped structure, the bottom of the guide slide bar (103) is provided with a threaded rod-shaped protrusion, and the guide slide bar (103) is fixed to the bottom of the threaded rod-shaped protrusion of the middle connection block (101); the outside of the external control part (1) is provided with a collision and demolition part (2), and the collision and demolition part (2) comprises a manual slide cylinder (201), a constraint plug block (203) and a collision block (204); the manual slide cylinder (201) is slidably connected to the outside of the guide slide bar (103), the manual slide cylinder (201) is slidably connected to the inside of the stabilizing slide groove (104), and the constraint plug block (203) is slidably connected to the inside of the stabilizing slide groove (104). Inside the fixed slide groove (104), the impact block (204) is threadedly connected to the bottom of the middle block (101); the impact block (204) is set as a cylindrical structure, an annular protrusion is provided on the outer wall of the impact block (204), a reinforcement plate is provided on the outer wall of the impact block (204), and a thread groove is opened on the inner wall of the impact block (204). There are two groups of impact blocks (204), and one group of impact blocks (204) is threadedly connected to the top of the manual slide (201); the bottom of the external control part (1) is provided with a hook pin part (3), and the hook pin part (3) includes a hook pin block (301) and a docking groove (302); the hook pin block (301) is threadedly connected to the bottom of the guide slide rod (103), and the guide slide rod (103) is threadedly connected to the inner thread of the docking groove (302).

2. The pull hammer type special tool for removing U-shaped pins according to claim 1, Features: The external control part (1) further comprises an external control handle (102); the middle connection block (101) is arranged as a rectangular block structure, a threaded groove is provided on the outer wall of the middle connection block (101), and a threaded rod-shaped protrusion is provided at the bottom of the middle connection block (101); the external control handle (102) is arranged as a cylindrical structure, a threaded rod-shaped protrusion is provided at the bottom of the external control handle (102), and two groups of external control handles (102) are provided, and the two groups of external control handles (102) are respectively threadedly connected in the threaded groove of the middle connection block (101).

3. The pull hammer type special tool for removing U-shaped pins according to claim 1, Features: The stabilizing slide groove (104) is configured as a rectangular groove, and the inner wall of the stabilizing slide groove (104) is connected to a rectangular groove. There are two groups of stabilizing slide grooves (104) in total, and the two groups of stabilizing slide grooves (104) are respectively opened on the outer wall of the guide slide rod (103).

4. The pull hammer type special tool for removing U-shaped pins according to claim 1, Features: The knock-down portion (2) further comprises an alignment groove (202); the hand-controlled slide (201) is configured as a cylindrical structure, two groups of rectangular protrusions are provided on the inner wall of the hand-controlled slide (201), an annular protrusion is provided on the outer wall of the hand-controlled slide (201), and a thread is provided on the outer wall of the hand-controlled slide (201); the alignment groove (202) is configured as a hemispherical groove, and there are two groups of alignment grooves (202), which are respectively opened on the two groups of rectangular protrusions on the inner wall of the hand-controlled slide (201).

5. The pull hammer type special tool for removing U-shaped pins according to claim 4, Features: The restraining plug block (203) is configured as a cylindrical structure, a rectangular protrusion is provided on the restraining plug block (203), a spring is provided on the restraining plug block (203), two groups of restraining plug blocks (203) are provided, and the two groups of restraining plug blocks (203) are respectively clamped in the alignment grooves (202).

6. The pull hammer type special tool for removing U-shaped pins according to claim 1, Features: The hook pin block (301) is configured as a hook-shaped structure, and a cylindrical protrusion is provided on the hook pin block (301); the docking groove (302) is configured as a cylindrical groove, and the docking groove (302) is connected to a threaded groove, and the docking groove (302) is opened inside the cylindrical protrusion of the hook pin block (301).

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