A hydraulic pipe bending machine to prevent pipe body dislocation
By introducing structures such as a fixed shaft, sleeve block, placement seat, and return spring into the hydraulic pipe bending machine, the problem of pipe body falling off during the bending process is solved, achieving stable support and quick replacement of bending blocks, thus improving safety and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG RUNBO MASCH EQUIP CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-30
AI Technical Summary
Existing hydraulic pipe bending machines are prone to detachment during the pipe bending process due to improper operation or instability, posing a safety hazard.
A hydraulic pipe bending machine to prevent pipe dislocation was designed. By setting up a fixed shaft, sleeve block, placement seat, return spring and other structures, the pipe body is stably supported and limited and fixed. The cooperation of hydraulic cylinder and telescopic rod ensures the stability of the bending process. The bending block can be quickly replaced by a detachable mounting seat.
It achieves stability and safety during the bending process, prevents pipe body dislocation, and facilitates quick replacement of bending blocks, thus improving operational safety and efficiency.
Smart Images

Figure CN224423908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic pipe bending machine technology, specifically a hydraulic pipe bending machine that prevents pipe body dislocation. Background Technology
[0002] During the production and processing of pipes, some pipes need to be bent to better fit the connections between components. Therefore, a hydraulic pipe bending machine is used. A hydraulic pipe bending machine is a device used to bend pipes. It is generally used in pipeline laying and repair in power construction, bridge construction, and railway and highway construction.
[0003] Based on the existing design of hydraulic pipe bending machines with protective structures, pipes are prone to detachment during the bending process due to improper operation or lack of pipe stability. To prevent safety hazards, the structure needs to be improved.
[0004] Now, a novel hydraulic pipe bending machine with a structure to prevent pipe dislocation is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a hydraulic pipe bending machine that prevents pipe body dislocation, so as to solve the problem mentioned in the background art that the pipe body may fall off during bending, which may easily cause safety hazards.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic pipe bending machine for preventing pipe dislocation, comprising a base and fixed columns. A first support seat is fixedly connected to one side of the top of the base. A first connecting seat is fixedly connected to the top of the first support seat. A fixed shaft is fixedly connected between the first connecting seats. A sleeve block is sleeved on the outside of the fixed shaft. A placement seat is fixedly connected to the top of the sleeve block. Fixed columns are fixedly connected to the four corners of the top of the base. A top plate is fixedly connected to the top of the fixed columns. A hydraulic cylinder is fixedly installed at the bottom of the top plate. A telescopic rod is movably connected to the bottom of the hydraulic cylinder. An installation groove is provided inside the bottom of the telescopic rod. A bending block is provided at the bottom of the telescopic rod. A limit block is fixedly connected to the top of the bending block. An installation seat is fixedly connected to the top of the limit block. A return spring is fixedly connected to the top of the base. A second connecting seat is fixedly connected to the top of the return spring. A second support seat is provided at the top of the second connecting seat. A sleeve is fixedly connected to the top of the inside of the return spring. A fixed rod is provided inside the sleeve.
[0007] Preferably, the bottom end of the fixing rod is fixedly connected to the top end of the base, and the sleeve is movable and fitted onto the outside of the fixing rod.
[0008] Preferably, a positioning block is movably hinged to the top of the placement seat, a movable buckle is movably hinged to the front end of the positioning block, a fixing block is fixedly connected to the front end of the placement seat, and the sleeve is rotatably sleeved on the outside of the fixed shaft.
[0009] Preferably, there are two sets of placement seats, which are symmetrically distributed on both sides of the top of the base.
[0010] Preferably, the interior of the top of the placement seat and the interior of the bottom of the positioning block are provided with placement grooves, and the positioning block is detachable from the fixing block by a movable buckle.
[0011] Preferably, the second support base and the bending block are semi-circular, and the interior of the second support base and the bending block is provided with bending grooves.
[0012] Preferably, the second support base has the same shape as the bending block, and the second support base and the bending block are on the same vertical plane.
[0013] Preferably, the mounting base has external threads on its exterior, the mounting groove has internal threads on its inner wall, the mounting base is detachably embedded in the mounting groove, and the bottom end of the second support base is detachably engaged with the inside of the bending block.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the hydraulic pipe bending machine with protective structure not only achieves buffering and stability during bending, prevents falling off, supports and protects the pipe body, facilitates the limiting and fixing of the pipe body, but also facilitates the quick replacement of the bending blocks.
[0015] (1) By setting a first connecting seat, a fixed shaft, a sleeve block, a placement seat, a return spring, a fixed rod, a sleeve, a second connecting seat, a second support seat, a bending block, a top plate, a hydraulic cylinder, a telescopic rod, an installation groove, an installation seat, and a limit block, the pipe body is placed in the placement groove, the hydraulic cylinder is opened, and the bending block at the bottom can be pressed down by the telescopic rod. The pipe body will bend due to the pressure. At the same time, the placement seats on both sides rotate with the direction of the pipe body because the sleeve block is connected to the fixed shaft and can rotate. At this time, the second support seat at the bottom will support the pipe body. When the bending block is pressed down, the sleeve will extend and retract outside the fixed rod and the return spring will be compressed, which makes it more stable when bending and prevents the pipe body from dislodging, thus having a certain protective effect.
[0016] (2) By setting up a placement slot, positioning block, movable buckle and fixing block, the tube is placed in the placement slot in the placement seat, the positioning block is flipped over, and the movable buckle is fastened to the outside of the fixing block to fix the tube and ensure its stability when bending.
[0017] (3) By providing a second connecting seat, a second support seat, a mounting groove, a mounting seat, and a limiting block, when it is necessary to replace the bending block, the external thread on the mounting seat can be used to screw the bending block to separate the mounting seat from the telescopic rod, thus making it quick and convenient to replace the bending block. Attached Figure Description
[0018] Figure 1 This is a frontal cross-sectional view of the present invention.
[0019] Figure 2 This is a side view of the connection between the placement base and the positioning block of this utility model.
[0020] Figure 3 This is a top view schematic diagram of the connection between the mounting base and the bending block of this utility model;
[0021] Figure 4 This is a front view structural diagram of the connection between the support block and the reset spring of this utility model.
[0022] In the diagram: 1. Base; 2. Fixed column; 3. First support seat; 4. First connecting seat; 5. Fixed shaft; 6. Sleeve block; 7. Placement seat; 8. Placement groove; 9. Positioning block; 10. Movable buckle; 11. Fixed block; 12. Return spring; 13. Fixed rod; 14. Sleeve; 15. Second connecting seat; 16. Second support seat; 17. Bending block; 18. Top plate; 19. Hydraulic cylinder; 20. Telescopic rod; 21. Mounting groove; 22. Mounting seat; 23. Limiting block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1: Please refer to Figure 1-4A hydraulic pipe bending machine for preventing pipe dislocation includes a base 1 and fixed columns 2. A first support seat 3 is fixedly connected to one side of the top of the base 1. A first connecting seat 4 is fixedly connected to the top of the first support seat 3. A fixed shaft 5 is fixedly connected between the first connecting seats 4. A sleeve block 6 is sleeved on the outside of the fixed shaft 5. A placement seat 7 is fixedly connected to the top of the sleeve block 6. Fixed columns 2 are fixedly connected to the four corners of the top of the base 1. A top plate 18 is fixedly connected to the top of the fixed column 2. A hydraulic cylinder 19 is fixedly installed at the bottom of the top plate 18. The bottom of the hydraulic cylinder 19 is movable. The system is connected by a telescopic rod 20. The telescopic rod 20 has an internal mounting groove 21 at its bottom end. The telescopic rod 20 has a bending block 17 at its bottom end. The bending block 17 has a limit block 23 fixedly connected to its top end. The limit block 23 has an mounting seat 22 fixedly connected to its top end. The base 1 has a return spring 12 fixedly connected to its top end. The return spring 12 has a second connecting seat 15 fixedly connected to its top end. The second connecting seat 15 has a second support seat 16 fixedly connected to its top end. The return spring 12 has a sleeve 14 fixedly connected to its top end. The sleeve 14 has a fixing rod 13 inside its interior.
[0025] The bottom end of the fixing rod 13 is fixedly connected to the top end of the base 1, and the sleeve 14 is sleeved on the outside of the fixing rod 13 and is movable.
[0026] The top of the placement seat 7 is movably hinged to a positioning block 9, the front end of the positioning block 9 is movably hinged to a movable buckle 10, the front end of the placement seat 7 is fixedly connected to a fixing block 11, and the sleeve block 6 is sleeved on the outside of the fixed shaft 5 and can rotate.
[0027] There are two sets of placement seats 7, which are symmetrically distributed on both sides of the top of the base 1;
[0028] The second support 16 and the bending block 17 are semi-circular, and bending grooves are provided inside the second support 16 and the bending block 17.
[0029] The second support 16 has the same shape as the bending block 17, and the second support 16 and the bending block 17 are on the same vertical plane.
[0030] Specifically, such as Figure 1 and Figure 4 As shown, the tube is placed in the placement slot 8, the hydraulic cylinder 19 is opened, and the bending block 17 at the bottom can be pressed down using the telescopic rod 20. The tube will bend due to the pressure. At the same time, the placement seats 7 on both sides rotate with the direction of the tube because they are connected to the fixed shaft 5 by the sleeve block 6. At this time, the second support seat 16 at the bottom will support the tube. When the bending block 17 is pressed down, the sleeve 14 will extend and retract outside the fixed rod 13 and the return spring 12 will be compressed, which makes the bending more stable and prevents the tube from dislodging, thus providing a certain protective effect.
[0031] Example 2: Placement grooves 8 are provided inside the top of the placement base 7 and inside the bottom of the positioning block 9. The positioning block 9 is detachable from the fixing block 11 by a movable buckle 10.
[0032] Specifically, such as Figure 1 and Figure 2 As shown, the tube is placed in the placement slot 8 in the placement seat 7, the positioning block 9 is flipped over, and the movable buckle 10 is fastened to the outside of the fixing block 11 to fix the tube and ensure its stability when bent.
[0033] Example 3: The mounting base 22 has external threads on its exterior and internal threads on its inner wall. The mounting base 22 is detachably embedded in the mounting groove 21. The bottom end of the second support base 16 is detachably engaged in the bending block 17.
[0034] Specifically, such as Figure 1 and Figure 3 As shown, when it is necessary to replace the bending block 17, the bending block 17 can be screwed on the outside of the mounting base 22 to disengage the mounting base 22 from the telescopic rod 20, thus making the replacement of the bending block 17 quick and convenient.
[0035] Working principle: In use, the pipe body is first placed in the placement groove 8 of the placement seat 7. The positioning block 9 is flipped over and fixed to the outside of the fixed block 11 using the movable buckle 10, which can fix the pipe body and ensure its stability during bending. Then, the pipe body is placed in the placement groove 8, the hydraulic cylinder 19 is opened, and the bending block 17 at the bottom can be pressed down using the telescopic rod 20. The pipe body will bend due to the pressure. At the same time, the two placement seats 7 on both sides are rotatably connected to the fixed shaft 5 through the sleeve block 6, and the pipe body bends accordingly. When the tube is rotated, the second support seat 16 at the bottom will support the tube body. When the bending block 17 is pressed down, the sleeve 14 will extend and retract outside the fixed rod 13 and the return spring 12 will be compressed, which makes the bending more stable and prevents the tube body from dislodging, thus providing a certain protective effect. Finally, when the bending block 17 needs to be replaced, the bending block 17 can be screwed on the external thread of the mounting seat 22 to disengage the mounting seat 22 from the telescopic rod 20, making the replacement of the bending block 17 quick and convenient.
[0036] 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 hydraulic pipe bender for preventing dislocation of a pipe body, comprising a base (1) and a fixing column (2), characterized in that: A first support seat (3) is fixedly connected to one side of the top of the base (1). A first connecting seat (4) is fixedly connected to the top of the first support seat (3). A fixed shaft (5) is fixedly connected between the first connecting seats (4). A sleeve block (6) is sleeved on the outside of the fixed shaft (5). A placement seat (7) is fixedly connected to the top of the sleeve block (6). Fixed columns (2) are fixedly connected to the four corners of the top of the base (1). A top plate (18) is fixedly connected to the top of the fixed column (2). A hydraulic cylinder (19) is fixedly installed at the bottom of the top plate (18). A telescopic rod (20) is movably connected to the bottom of the hydraulic cylinder (19). The bottom end of the rod (20) is provided with an installation groove (21). The bottom end of the telescopic rod (20) is provided with a bending block (17). The top end of the bending block (17) is fixedly connected to a limit block (23). The top end of the limit block (23) is fixedly connected to an installation seat (22). The top end of the base (1) is fixedly connected to a return spring (12). The top end of the return spring (12) is fixedly connected to a second connecting seat (15). The top end of the second connecting seat (15) is provided with a second support seat (16). The top end of the return spring (12) is fixedly connected to a sleeve (14). The inside of the sleeve (14) is provided with a fixing rod (13).
2. A hydraulic pipe bender for preventing dislocation of a pipe body according to claim 1, characterized in that: The bottom end of the fixing rod (13) is fixedly connected to the top end of the base (1), and the sleeve (14) is movable and sleeved on the outside of the fixing rod (13).
3. The hydraulic pipe bending machine for preventing pipe body dislocation according to claim 1, characterized in that: The top of the placement seat (7) is movably hinged to a positioning block (9), the front end of the positioning block (9) is movably hinged to a movable buckle (10), the front end of the placement seat (7) is fixedly connected to a fixing block (11), and the sleeve block (6) is sleeved on the outside of the fixed shaft (5) and can rotate.
4. A hydraulic pipe bending machine for preventing pipe body dislocation according to claim 1, characterized in that: The placement seat (7) is provided in two sets, and the placement seat (7) is symmetrically distributed on both sides of the top of the base (1).
5. A hydraulic pipe bending machine for preventing pipe body dislocation according to claim 3, characterized in that: The placement seat (7) has a placement groove (8) inside the top and the positioning block (9) inside the bottom. The positioning block (9) is detachable from the fixing block (11) by a movable buckle (10).
6. A hydraulic pipe bending machine for preventing pipe body dislocation according to claim 1, characterized in that: The second support base (16) and the bending block (17) are semi-arc-shaped, and bending grooves are provided inside the second support base (16) and the bending block (17).
7. A hydraulic pipe bending machine for preventing pipe body dislocation according to claim 1, characterized in that: The second support (16) has the same shape as the bending block (17), and the second support (16) and the bending block (17) are on the same vertical plane.
8. A hydraulic pipe bending machine for preventing pipe body dislocation according to claim 1, characterized in that: The mounting base (22) has external threads on its exterior and internal threads on the inner wall of the mounting groove (21). The mounting base (22) is detachably embedded in the mounting groove (21). The bottom end of the second support base (16) is detachably engaged in the interior of the bending block (17).