Broken wire taking-out device

Abstract

The utility model relates to the technical field of hardware tools, and discloses a broken wire taking-out device which comprises a base, a pressing plate and a lifting part arranged between the base and the pressing plate, and the surfaces of the base and the pressing plate are attached to each other and can be separated. The end parts of the base and the pressing plate are respectively provided with a base insertion head and a pressing plate insertion head which have semicircular sections and are attached to each other; a containing groove is formed between the base and the pressing plate and penetrates through the two ends of the base and the two ends of the pressing plate. The shape of the lifting piece is matched with that of the accommodating groove, and the lifting piece is arranged in the accommodating groove; a limiting structure for preventing the pressing plate from being easily separated from the base is arranged above the pressing plate, and a pushing structure for pushing the lifting part to move towards the front end is arranged at the rear end of the base. The base and the pressing plate which are attached to each other and can be separated are arranged to drive the inserting head to be clamped and fixed with a broken pipe, so that the broken pipe is screwed out in a rotating mode, the structure is simplified, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware tools, in particular to a broken wire removing device. Background Art

[0002] Pipes and valves, where liquids flow through them, can break and wear out over time due to various factors, including rust, wear, mechanical damage, material defects, temperature fluctuations, design and installation flaws, excessive stress, and aging. When a pipe or valve breaks or becomes lodged in the existing wall or pipe, it hinders operators from installing new pipes or repairs. Because old pipes or valves lack support points and exposed threads or nuts, removing them from the old pipe or wall is laborious, requiring specialized extraction equipment.

[0003] Our company previously applied for a Chinese utility model patent, application number 202220251102.0, for a broken wire removal device to address this situation. This solution effectively solves the problem of difficult-to-remove stuck pipes or valves. However, after long-term use, we found that the existing broken wire removal device still had room for improvement in terms of structure and ease of use, so we have made improvements to this solution. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a broken wire removal device. By setting a base and a pressure plate that are in contact with each other and can be separated, the insertion head is driven to clamp and fix the broken pipe, so that the broken pipe can be twisted out by rotating, simplifying the structure and making the operation more convenient.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a broken wire removal device, comprising a base and a pressure plate whose surfaces are in contact with each other and can be separated, and a lifting member arranged between the base and the pressure plate;

[0006] The ends of the base and the pressing plate are respectively provided with a base insertion head and a pressing plate insertion head with semicircular cross-sections and fitted to each other;

[0007] A receiving groove is provided between the base and the pressing plate, the receiving groove passing through both ends of the base and the pressing plate; the receiving groove comprises at least a head portion having a conical or truncated cone-shaped vertical cross-section and a transmission portion connected to the head portion; the lifting member is adapted in shape to the receiving groove and is placed in the receiving groove; the head portion is located at the front end of the base;

[0008] A limiting structure is provided above the pressing plate to prevent the pressing plate from being easily separated from the base, and a pushing structure is provided at the rear end of the base to push the lifting member to move toward the front end.

[0009] Furthermore, fixing teeth are provided on the outer sides of the base insertion head and the pressure plate insertion head.

[0010] Furthermore, the fixing teeth on the base insertion head and the pressure plate insertion head are inclined in the same direction.

[0011] Furthermore, the transmission part is a cylinder, there are two heads, and the transmission part is connected between the two heads.

[0012] Furthermore, the limiting structure includes a limiting frame spanning both sides of the base and fixedly connected thereto; the limiting frame includes two vertical rods fixedly connected to both sides of the base, and a horizontal rod fixedly connected to the tops of the two vertical rods; the horizontal rod has a limiting screw hole vertically opened, and the limiting screw hole is threadedly connected to the limiting bolt; when working, there is a distance between the bottom of the limiting bolt and the upper surface of the pressure plate.

[0013] Furthermore, the cross section of the pressing plate is T-shaped, and the T-shaped portion of the pressing plate is restricted to a side of the limiting frame away from the front end of the base.

[0014] Furthermore, the pushing structure includes a fixed block fixedly connected to the rear end of the base and extending beyond the upper surface of the base. The fixed block is provided with a pushing screw hole corresponding to the center of the vertical cross-section of the transmission part. The pushing screw hole is threadedly connected to a pushing bolt that pushes the lifting member.

[0015] Furthermore, a gear sleeve is provided on the outer side of the fixed gear.

[0016] The beneficial effects of the present invention are as follows: by providing a base and a pressure plate that fit together and can be separated, and providing insertion heads at the front ends of the base and the pressure plate respectively, and providing a lifting piece that can separate the insertion heads between the base and the pressure plate, the two insertion heads are clamped with the inner wall of the broken pipe, so that the broken pipe can be rotated and screwed out, simplifying the structure and making the operation more convenient; by providing a limit frame and a limit bolt, the pressure plate is prevented from being easily separated from the base, and the stability of the insertion head after being clamped with the broken pipe is guaranteed; by providing a circular insertion head, the contact area with the inner wall of the broken pipe is increased, and by providing an inclined fixed tooth, it is difficult to rotate in one direction after the broken pipe is clamped, but it can be rotated in the other direction more easily, which is convenient for removing the insertion head and strengthens the stability of the clamping connection between the insertion head and the broken pipe compared to the saw teeth; after being clamped, it can be rotated in the inclined direction of the fixed teeth, thereby improving the clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the working state of the utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the fixed tooth structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the accommodating tank structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled state of the gear sleeve of the present invention.

[0022] In the figure: 1. Wall; 2. Broken pipe; 3. Base; 4. Base insertion head; 5. Limiting frame; 6. Pressure plate; 7. Pressure plate insertion head; 8. Fixed teeth; 9. Receiving groove; 10. Lifting piece; 11. Limiting screw hole; 12. Limiting bolt; 13. Pushing screw hole; 14. Pushing bolt; 15. Fixing block; 16. Gear sleeve. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of the present invention.

[0024] Directional terms mentioned in this invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used with reference to the directions of the drawings. The directional terms used are used to illustrate and understand the invention, and are not intended to limit the invention.

[0025] Example:

[0026] like Figure 1-Figure 5 As shown, a broken wire removal device includes a base 3 and a pressing plate 6 whose surfaces are in contact with each other and can be separated, and a lifting member 10 provided between the base 3 and the pressing plate 6;

[0027] The ends of the base 3 and the pressing plate 6 are respectively provided with a base insertion head 4 and a pressing plate insertion head 7 with a semicircular cross section and fit together; the two have the same radius, and the base insertion head 4 and the pressing plate insertion head 7 are combined to form a circle;

[0028] A receiving groove 9 is provided between the base 3 and the pressing plate 6, and the receiving groove 9 passes through both ends of the base 3 and the pressing plate 6; the receiving groove 9 includes at least a head with a vertical cross-section of a cone or a truncated cone and a transmission part connected to the head; the smaller side of the cone or the truncated cone is provided close to the front end of the base 3, and the base 3 and the pressing plate 6 each have half of the receiving groove 9 on their free surfaces; the lifting member 10 is adapted to the receiving groove 9 and is placed in the receiving groove 9; the lifting member 10 has the same shape as the receiving groove 9; the head is located at the front end of the base 3; as shown Figure 1 and Figure 2 As shown, the left end is the front end and the other end is the rear end;

[0029] A limiting structure is provided above the pressing plate 6 to prevent the pressing plate 6 from being easily separated from the base 3, and a pushing structure is provided at the rear end of the base 3 to push the lifting member 10 to move toward the front end.

[0030] Fixed teeth 8 are provided on the outside of the base insertion head 4 and the pressure plate insertion head 7 .

[0031] The fixed teeth 8 on the base insertion head 4 and the pressure plate insertion head 7 are inclined in the same direction; after the base insertion head 4 and the pressure plate insertion head 7 are combined, they are the same as a ratchet.

[0032] The transmission part is a cylinder with two heads. The transmission part is connected between the two heads. There are two transmission parts, and the heads and the transmission part are staggered. The pushing structure pushes the transmission part when working. The diameters of the two transmission parts are different, and the maximum diameters of the two heads are the same. The diameter of the transmission part is not larger than the maximum diameter of the head; the center lines of the transmission part and the head are on the same straight line.

[0033] The limiting structure includes a limiting frame 5 that spans and is fixedly connected to the base 3. The limiting frame 5 includes two vertical rods fixedly connected to the base 3 on both sides, and a crossbar fixedly connected to the tops of the two vertical rods. The crossbar has a limiting screw hole 11 vertically corresponding to the pressure plate 6, and the limiting screw hole 11 is threadedly connected to the limiting bolt 12. During operation, the bottom of the limiting bolt 12 is spaced from the upper surface of the pressure plate 6. The limiting bolt 12 is provided to ensure the stability of the two insertion heads and the broken pipe.

[0034] The cross section of the pressing plate 6 is T-shaped, and the T-shaped portion of the pressing plate 6 is restricted to the side of the limiting frame 5 away from the front end of the base 3; the front end of the pressing plate 6 is a rectangular plate, arranged longitudinally, and the rear end is a horizontal plate integrally connected to the front rectangular plate and perpendicular to the same plane; the horizontal plate is restricted between the limiting frame 5 and the fixed block 15; Figure 1 As shown, the left and right directions are longitudinal directions, and perpendicular to the left and right directions are front and back directions, i.e., horizontal directions. The T-shaped pressing plate 6 is limited by the limiting frame 5 and the fixing block 15 to prevent it from moving left and right, so that it can only move up and down.

[0035] The pushing structure includes a fixed block 15 fixedly connected to the rear end of the base 3 and extending beyond the upper surface of the base 3. The fixed block 15 is provided with a pushing screw hole 13 corresponding to the center of the vertical cross-section of the transmission part. The pushing screw hole 13 passes through the fixed block 15 on the left and right, and the axis line is in the same straight line as the axis line of the lifting part. The pushing screw hole 13 is threadedly connected to a pushing bolt 14 that pushes the lifting part 10; the diameter of the pushing bolt 14 is smaller than the diameter of the closest transmission part.

[0036] The outer side of the fixed tooth 8 is provided with a tooth sleeve 16, and there are two tooth sleeves 16, both of which are semicircular and are respectively provided on the outer side of the fixed tooth 8 corresponding to the base insertion head 4 and the fixed tooth 8 corresponding to the pressure plate insertion head 7. The tooth sleeve 16 can make the device suitable for broken pipes with larger diameters, thereby expanding the scope of use.

[0037] By providing a base and a pressure plate that fit together and can be separated, and providing insertion heads at the front ends of the base and the pressure plate respectively, and providing a lifting piece that can separate the insertion heads between the base and the pressure plate, the two insertion heads are clamped to the inner wall of the broken pipe, so that the broken pipe can be rotated and screwed out, simplifying the structure and making the operation more convenient; by providing a limit frame and a limit bolt, the pressure plate is prevented from being easily separated from the base, and the stability of the insertion head after being clamped to the broken pipe is guaranteed; by providing a circular insertion head, the contact area with the inner wall of the broken pipe is increased, and by providing inclined fixing teeth, it is difficult to rotate in one direction after the broken pipe is clamped, but it can be rotated in the other direction more easily, which is convenient for removing the insertion head and strengthens the stability of the clamping connection between the insertion head and the broken pipe compared to the saw teeth; after being clamped, it can be rotated in the inclined direction of the fixing teeth to improve the clamping stability.

[0038] Working process: When the broken pipe 2 or valve is left in the wall 1 or pipeline and cannot be removed by conventional means, the broken wire removal device is used, and the lifting piece 10 is placed in the receiving groove 9 to make the two fit together. Then the pressure plate 7 is placed on the base 3 to ensure that the pressure plate insertion head 7 corresponds to the base insertion head 4. Then the pressure plate insertion head 7 and the base insertion head 4 are inserted into the broken pipe 2 together, and the limit bolt 12 is screwed down to leave a small gap between its bottom and the upper surface of the pressure plate 6. Then the pushing bolt 14 is screwed. The pushing bolt 14 pushes the lifting piece 10 to the front end, and the part with a larger diameter in the head of the lifting piece moves toward the part with a smaller diameter of the receiving groove 9. In this process, the lifting piece 10 is lifted so that the base insertion head 4 at the front end is too high and separated from the pressure plate insertion head 7 until the fixing tooth 8 is tightly stuck with the inner wall of the broken pipe 2. It can be rotated appropriately in the tilt direction of the fixing tooth 8, and then the broken pipe 2 is rotated and screwed out by rotating the entire broken wire removal device.

[0039] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A broken wire removal device, characterized in that: It comprises a base (3) and a pressing plate (6) whose surfaces are in contact with each other and can be separated, and a lifting member (10) arranged between the base (3) and the pressing plate (6); The ends of the base (3) and the pressure plate (6) are respectively provided with a base insertion head (4) and a pressure plate insertion head (7) with a semicircular cross section and fitted to each other; A receiving groove (9) is provided between the base (3) and the pressing plate (6), and the receiving groove (9) passes through both ends of the base (3) and the pressing plate (6); the receiving groove (9) comprises at least a head portion having a conical or truncated cone shape in vertical cross section and a transmission portion connected to the head portion; the lifting member (10) is adapted in shape to the receiving groove (9) and is placed in the receiving groove (9); the head portion is located at the front end of the base (3); A limiting structure is provided above the pressing plate (6) to prevent the pressing plate (6) from being easily separated from the base (3), and a pushing structure is provided at the rear end of the base (3) to push the lifting member (10) to move toward the front end.

2. A broken wire removal device according to claim 1, characterized in that: Fixed teeth (8) are provided on the outsides of the base insertion head (4) and the pressure plate insertion head (7).

3. A broken wire removal device according to claim 2, characterized in that: The fixed teeth (8) on the base insertion head (4) and the pressure plate insertion head (7) are both inclined in the same direction.

4. The broken wire removal device according to claim 1, characterized in that: The transmission part is a cylinder, and there are two heads, and the transmission part is connected between the two heads.

5. The broken wire removal device according to claim 1, characterized in that: The limiting structure comprises a limiting frame (5) spanning both sides of the base (3) and fixedly connected thereto; the limiting frame (5) comprises two vertical rods fixedly connected to both sides of the base (3), and a horizontal rod fixedly connected to the tops of the two vertical rods; the horizontal rod is vertically provided with a limiting screw hole (11), and the limiting screw hole (11) is threadedly connected to a limiting bolt (12); when in operation, a gap is left between the bottom of the limiting bolt (12) and the upper surface of the pressure plate (6).

6. The broken wire removal device according to claim 5, characterized in that: The cross section of the pressing plate (6) is T-shaped, and the T-shaped portion of the pressing plate (6) is restricted to a side of the limiting frame (5) away from the front end of the base (3).

7. The broken wire removal device according to claim 1, characterized in that: The pushing structure includes a fixed block (15) fixedly connected to the rear end of the base (3) and extending beyond the upper surface of the base (3); the fixed block (15) is provided with a pushing screw hole (13) corresponding to the center of the vertical cross section of the transmission part; the pushing screw hole (13) is internally threadedly connected to a pushing bolt (14) for pushing the lifting member (10).

8. The broken wire removal device according to claim 2, characterized in that: A tooth sleeve (16) is sleeved on the outer side of the fixed tooth (8).

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