Pipe bending mechanism capable of preventing scratches
By designing anti-scratch components, the problem of friction damage caused by slippage of the extrusion seat during pipe joint bending is solved, resulting in higher finished product quality, service life, and stability.
Patent Information
- Application Number
- CN202520043368.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing pipe joints, during the bending process, the compression seat and the joint may slide, causing friction damage to the surface of the pipe joint.
The device employs anti-scratch components, including a sliding part and a positioning part. Through the cooperation of the sliding seat and the limiting seat, it ensures that the extrusion seat does not slip during the bending process. The T-shaped moving groove is used to improve stability and prevent friction damage.
It improves the quality of the finished product after bending and the service life of the extrusion seat, and enhances the stability and safety of use.
Smart Images

Figure CN223761829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe bending technology, specifically a pipe bending mechanism to prevent scratches. Background Technology
[0002] A pipe joint bending mechanism is a device used to bend pipe joints. It can be adjusted and processed according to the specifications and shapes of different pipe joints.
[0003] For example, the Chinese authorized patent (pipe bending machine) with publication number CN104858272B includes a pipe bending die; a pipe support assembly for clamping the pipe to be bent at one end in the bending feeding direction of the pipe section to be bent; and a bending clamping assembly for clamping the pipe to be bent at the other end of the pipe section to be bent and applying force to that end so that the pipe section to be bent adheres to the pipe bending die and is bent into the desired shape. Both the pipe support assembly and the pipe bending die are in two sets for matching. The bending clamping assembly can be driven to rotate bidirectionally around the pipe bending die's axial direction. By selecting the two rotation directions of the bending clamping assembly, the pipe can be bent in two directions through the pipe support assembly and pipe bending die matched on the corresponding sides. The device of this invention can achieve bending of pipes in multiple directions, and the bending angle or arc can be arbitrarily set, thereby greatly improving the working efficiency and application range of the bending machine.
[0004] However, during the bending process of existing pipe joints, the compression seat and the joint will slide, which will cause the surface of the pipe joint to be easily damaged by friction. Therefore, it does not meet the existing requirements. To address this, we propose a pipe bending mechanism to prevent scratches. Utility Model Content
[0005] The purpose of this utility model is to provide a pipe bending mechanism that prevents scratches, so as to solve the problem mentioned in the background art that the compression seat and the joint will slide during the bending process of the existing pipe joint, which will cause the surface of the pipe joint to be easily damaged by friction.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe bending mechanism to prevent scratches, comprising: a bending mechanism, wherein a column is provided at the lower end of the bending mechanism, the bending mechanism includes a bending frame and a handle, an installation groove is provided on the surface of the bending frame, a pipe joint is installed inside the installation groove, the pipe joint is pressed and fixed by a pressing seat, and an anti-scratch component is provided at the rear end of the pressing seat.
[0007] Preferably, the anti-scratch component includes a sliding part and a positioning part, and the positioning part is located at the rear end of the sliding part. The sliding part includes a sliding seat, and a fixing groove is provided on one side surface of the sliding seat. The pressing seat is inserted into the fixing groove, and the pressing seat is fixed to the sliding seat by an external fastener.
[0008] Preferably, the sliding part further includes a movable seat, and the movable seat is located on the other side of the sliding seat, with limiting seats provided on both sides of one end of the movable seat.
[0009] Preferably, the positioning part includes a positioning seat, and the positioning seat is fixed to the bending frame by an external fastener. A moving groove is provided on one side surface of the positioning seat, and the moving groove passes through the positioning seat vertically. The moving seat and the limiting seat slide vertically along the moving groove.
[0010] Preferably, the movable seat and the limiting seat form a T-shape, and the movable groove is also T-shaped.
[0011] Preferably, a connecting groove is provided on one side surface of the extrusion seat, a connector slot is provided on the inner wall of the connecting groove near the top, and a pipe groove is provided on the lower surface of the opening of the connector slot.
[0012] Preferably, the bottom end of the column is fixed to a base by bolts, and the lower corner of the base is provided with casters.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) This utility model connects the extrusion seat and the bending frame through an anti-scratch component. The pipe joint is inserted into the connecting groove of the extrusion seat. When the bending frame is bent, the extrusion seat is stuck inside the fixed groove and is fixed to the sliding seat by external fasteners. The moving seat and the limiting seat of the sliding seat are inserted along the moving groove, and the positioning seat is fixed to the bending frame by external fasteners. When the extrusion seat slides with the pipe joint under bending force, it drives the sliding seat to be stressed. The moving seat and the limiting seat of the sliding seat slide up and down along the moving groove, thereby driving the extrusion seat to move together. Compared with the existing extrusion seat that is fixed and cannot slide, the sliding extrusion seat and the pipe joint will not be damaged by friction. This improves the quality of the finished product after bending and the service life of the extrusion seat. It solves the problem that the extrusion seat and the joint will slide during the bending process of the existing pipe joint, which will cause the surface of the pipe joint to be easily damaged by friction.
[0015] (2) By setting a limiting seat at one end of the moving seat, the moving seat and the limiting seat form a T-shape, and the moving groove is also T-shaped, which improves the stability of the moving seat and the limiting seat when sliding along the moving groove, making them less likely to separate, and improving the stability and safety of use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a partial enlarged view of point A of this utility model;
[0018] Figure 3 This is a schematic diagram of the sliding part structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the positioning part structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the extrusion seat structure of this utility model;
[0021] In the diagram: 1. Bending mechanism; 2. Column; 3. Base; 4. Casters; 5. Bending frame; 6. Handle; 7. Pipe joint; 8. Extrusion seat; 9. Sliding part; 10. Positioning part; 11. Mounting groove; 12. Anti-scratch component; 13. Sliding seat; 14. Fixing groove; 15. Moving seat; 16. Limiting seat; 17. Positioning seat; 18. Moving groove; 19. Connecting groove; 20. Joint slot; 21. Pipe groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Please see Figure 1-5 This utility model provides an embodiment of a pipe bending mechanism to prevent scratches, comprising: a bending mechanism 1, a column 2 at the lower end of the bending mechanism 1, the bending mechanism 1 including a bending frame 5 and a handle 6, an installation groove 11 on the surface of the bending frame 5, a pipe joint 7 installed inside the installation groove 11, the pipe joint 7 being pressed and fixed by a pressing seat 8, an anti-scratch component 12 at the rear end of the pressing seat 8, a connecting groove 19 on one side surface of the pressing seat 8, and a joint retaining groove 20 on the inner wall of the connecting groove 19 near the top. The lower surface of the slot 20 opening is provided with a pipe groove 21. When the pipe joint 7 is bent, the bent part of the pipe joint 7 is inserted into the connecting groove 19, and the joint part is inserted into the joint slot 20, while the pipe part is inserted into the pipe groove 21, which has a positioning effect and prevents position displacement. When bending, the handle part 6 is linked with the bending frame 5. This is an existing linkage technology. The bending frame 5 is rotated, which causes the pipe joint 7 to be squeezed against the bending limit seat (not shown in the figure), thereby realizing the bending operation of the pipe joint 7.
[0024] The anti-scratch component 12 includes a sliding part 9 and a positioning part 10, with the positioning part 10 located at the rear end of the sliding part 9. The sliding part 9 includes a sliding seat 13, with a fixing groove 14 provided on one side surface of the sliding seat 13. A pressing seat 8 is inserted into the fixing groove 14 and is fixed to the sliding seat 13 by external fasteners. The sliding part 9 also includes a movable seat 15, located on the other side of the sliding seat 13. Limit seats 16 are provided on both sides of one end of the movable seat 15. The positioning part 10 includes a positioning seat 17, which is fixed to the bending frame 5 by external fasteners. A moving groove 18 is provided on one side surface of the positioning seat 17, extending vertically through the positioning seat 17. The movable seat 15 and the limit seats 16 are also connected. As the pipe joint 7 is bent, the extrusion seat 8 slides up and down along the moving groove 18. During the bending process, the extrusion seat 8 is inserted into the fixed groove 14 and fixed to the sliding seat 13 by external fasteners. The moving seat 15 and the limiting seat 16 of the sliding seat 13 are inserted along the moving groove 18, and the positioning seat 17 is fixed to the bending frame 5 by external fasteners. When the extrusion seat 8 slides with the pipe joint 7 under bending force, it drives the sliding seat 13 to be stressed. The moving seat 15 and the limiting seat 16 of the sliding seat 13 slide up and down along the moving groove 18, thereby driving the extrusion seat 8 to move together instead of being fixed. In this way, the extrusion seat 8 and the pipe joint 7 will not be damaged by friction, which improves the quality of the finished product after bending and the service life of the extrusion seat 8.
[0025] Please see Figure 2 , 3 4. The movable seat 15 and the limiting seat 16 form a T-shape, and the movable groove 18 is also T-shaped, which improves the stability of the movable seat 15 and the limiting seat 16 when sliding along the movable groove 18, making them less likely to separate and improving the stability and safety of use.
[0026] Please see Figure 1 The bottom of the column 2 is fixed to the base 3 by bolts. The lower corner of the base 3 is equipped with casters 4. The casters 4 drive the base 3 to move. Since the base 3 is fixed to the column 2 by bolts, the column 2 can be moved in position, thus realizing the overall movement and improving the convenience of movement.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A scratch-proof pipe bending mechanism comprising a bending mechanism (1), a stand (2) is provided at the lower end of the bending mechanism (1), the bending mechanism (1) comprises a bending frame (5) and a handle part (6), characterized in that: The surface of the bending frame (5) is provided with a mounting groove (11), the inside of the mounting groove (11) is mounted with a pipe joint (7), the pipe joint (7) is fixed by extrusion through an extrusion seat (8), the rear end of the extrusion seat (8) is provided with an anti-scratch assembly (12).
2. A scratch-preventing pipe bending mechanism according to claim 1, characterized in that: The anti-scratch assembly (12) comprises a sliding part (9) and a positioning part (10), the positioning part (10) is located at the rear end of the sliding part (9), the sliding part (9) comprises a sliding seat (13), one side surface of the sliding seat (13) is provided with a fixed groove (14), the extrusion seat (8) is clamped into the inside of the fixed groove (14), and the extrusion seat (8) is fixed with the sliding seat (13) through an external fastener.
3. A scratch-preventing pipe bending mechanism according to claim 2, characterized in that: The sliding part (9) further comprises a moving seat (15), and the moving seat (15) is located at the other side of the sliding seat (13), the both side surfaces of one end of the moving seat (15) are provided with limiting seats (16).
4. A scratch-preventing pipe bending mechanism according to claim 3, characterized in that: The positioning part (10) comprises a positioning seat (17), and the positioning seat (17) is fixed with the bending frame (5) through an external fastener, one side surface of the positioning seat (17) is provided with a moving groove (18), the moving groove (18) penetrates the positioning seat (17) up and down, and the moving seat (15) and the limiting seat (16) slide up and down along the moving groove (18).
5. A scratch-preventing pipe bending mechanism according to claim 4, characterized in that: The moving seat (15) and the limiting seat (16) form a T shape, and the moving groove (18) is also T-shaped.
6. A scratch-preventing pipe bending mechanism according to claim 1, characterized in that: One side surface of the extrusion seat (8) is provided with a connecting groove (19), the inner wall of the connecting groove (19) near the top end is provided with a joint clamping groove (20), and the lower surface of the opening of the joint clamping groove (20) is provided with a pipe groove (21).
7. A scratch resistant bend mechanism as claimed in claim 1, wherein: The bottom end of the stand column (2) is fixed with a base (3) through bolts, and the lower corners of the base (3) are all provided with universal wheels (4).
Citation Information
Patent Citations
Pipe bending machine
CN104858272B