PVC (polyvinyl chloride) pipe rigid spring bending device
The PVC pipe rigid spring bender uses the lever principle to assist in PVC pipe bending, which solves the problems of manual bending that is laborious and of unstable quality, achieves uniform force and stable bending effect, and improves construction efficiency.
Patent Information
- Application Number
- CN202422775181.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In the existing PVC pipe bending process, manual bending is laborious and the quality is affected by the environment and workers' experience, resulting in damage to the PVC pipe.
A PVC pipe rigid spring bender is used, including a fixed steel casing and a bending spring. An auxiliary lever assembly and a fixed wheel assembly are used to assist in bending the PVC pipe through the lever principle, ensuring uniform force and stable bending.
It ensures uniform stress on PVC pipes in different environments, avoids changes in pipe diameter, improves construction efficiency and the stability of bending effects, and reduces damage to PVC pipes.
Smart Images
Figure CN223314443U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a bending device. Background Art
[0002] At present, under the general trend of vigorous development of the construction industry, there are many patents for various processes and methods in the construction industry. It is well known that in the process of water and electricity installation on site and temporary water and electricity, PVC and SC pipes will be used for pre-buried and reserved pipes. For the bending of PVC pipes, most of the water and electricity workers on site use spring pipes with the same inner diameter as the PVC pipes, and use spring pipes to insert into the PVC pipes for manual bending. In the bending process, due to the differences in the workers' operating environment and personal experience, PVC pipes of the same quality under different conditions are damaged to varying degrees during the pre-buried process, which may lead to different pipeline resumption in the following pipe sweeping project. The existing benders include stretch bending benders, core shaft bending benders, and pipe filling bending benders. There are currently two ways to bend PVC: cold bending and hot bending. Cold bending: Cold bending is to bend the pipe directly with brute force. However, before bending with force, a spring needs to be placed in the bending place. The size should be just right to be stuffed into the pipe. After bending, the spring needs to be taken out. Hot bending: Hot bending is also easy to understand. The pipe is bent after being heated. Of course, it is not bent immediately after heating. Instead, the heating place needs to be filled with sand before heating. It is best to fill the entire pipe. After being exposed to high temperature, it can be bent slowly. Finally, of course, the sand is poured out. The engineering quality of these two technologies will be affected by the environment and the workers' own experience, which will cause uncontrollable damage to the PVC pipe. Utility Model Content
[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a PVC pipe rigid spring bender, which solves the problem of the laborious manual bending of PVC pipes in the prior art.
[0004] The technical solution of the utility model is implemented as follows: a PVC pipe steel spring bender includes a fixed steel sleeve and a bending spring, the bending spring is detachably arranged in the PVC pipe, the fixed steel sleeve is detachably sleeved on the PVC pipe provided with the bending spring, one side of the fixed steel sleeve is provided with a bending assembly that cooperates with the PVC pipe, and the other side of the fixed steel sleeve is provided with an auxiliary lever assembly that cooperates with the bending assembly.
[0005] Further preferably, a support frame is provided on the fixed steel casing.
[0006] Further preferably, a top screw is threadedly connected to the fixed steel casing, and an arc-shaped plate is provided at the end of the top screw, and the arc-shaped plate is located inside the fixed steel casing.
[0007] Further preferably, the bending assembly includes a fixed wheel connected to the fixed steel casing.
[0008] Further preferably, an arc-shaped groove matching with the PVC pipe is provided on the outer wall of the fixed wheel.
[0009] Further preferably, the auxiliary lever assembly includes a rod, one end of the rod is fixedly connected to the outer wall of the fixed steel sleeve, and the other end of the rod is provided with a handle.
[0010] Further preferably, the handle is a triangular structure frame.
[0011] Further preferably, a collar is provided on the rod, and the collar is coaxially arranged with the fixed steel sleeve.
[0012] Further preferably, a bracket is connected to the rod, and the bracket is connected to the positioning.
[0013] Further preferably, a foot pedal is connected to the bracket.
[0014] The beneficial effects of the utility model are:
[0015] 1. The bending spring of the utility model assists the PVC pipe to bend evenly, avoiding the change of the diameter of the PVC pipe during bending. The bending component is used to assist the deformation and bending of the PVC pipe to ensure the curvature; the PVC pipe is passed through the inside of the fixed steel casing, and the auxiliary lever component adopts the lever principle to assist and fix the steel casing to bend the PVC pipe. The PVC pipe can be bent with a smaller force, while ensuring the stability of the bending effect. The PVC pipe can be bent under different conditions and environments, which is convenient for workers to work in different environments and speeds up the construction efficiency of workers.
[0016] 2. The support frame is used to fix the fulcrum when the steel casing is bent to the PVC pipe, so as to avoid the uneven bending of the PVC pipe caused by directly using the PVC pipe to support and fix the steel casing.
[0017] 3. The fixed wheel can limit the bending degree of the PVC pipe and ensure the deformation effect of the PVC pipe. The arc groove on the fixed wheel is used to limit the PVC pipe and ensure that the PVC pipe always cooperates with the fixed wheel when bending. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1It is a structural diagram of the utility model;
[0020] Figure 2 It is a three-dimensional diagram of the utility model;
[0021] Figure 3 It is a cross-sectional diagram of a fixed high pipe sleeve.
[0022] In the figure: 1. handle, 2. rod, 3. bracket, 4. pedal, 5. fixed wheel, 6. bending spring, 7. support frame, 8. fixed steel casing, 9. ring, 10. top screw, 11. curved plate. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] like Figures 1-3 As shown, Example 1 is a PVC pipe rigid spring bender, comprising a fixed steel sleeve 8 and a bending spring 6. The bending spring 6 is detachably arranged in the PVC pipe. The outer diameter of the bending spring 6 corresponds to the inner diameter of the PVC pipe, and is used to make the PVC pipe evenly stressed during bending, and to prevent the diameter of the PVC pipe from changing during bending. The fixed steel sleeve 8 is detachably sleeved on the PVC pipe provided with the bending spring 6. The PVC pipe is passed through the interior of the fixed steel sleeve 8. A bending assembly that cooperates with the PVC pipe is provided on one side of the fixed steel sleeve 8. The bending assembly is used to assist the PVC pipe in deformation and bending to ensure the curvature. An auxiliary lever assembly that cooperates with the bending assembly is provided on the other side of the fixed steel sleeve 8. The auxiliary lever assembly uses the lever principle to assist and bend the PVC pipe with the bending assembly fixed steel sleeve 8. The PVC pipe can be bent with a smaller force, while ensuring the stability of the bending effect. The PVC pipe can be bent under different conditions and environments, which is convenient for workers to work in different environments and speeds up the workers' construction efficiency.
[0025] In this embodiment, a support frame 7 is provided on the fixed steel casing 8. The support frame 7 is used as a fulcrum when the fixed steel casing 8 is bent to form a PVC pipe, so as to avoid uneven acceptance of the PVC pipe due to the direct use of the PVC pipe to support the fixed steel casing 8. A top screw 10 is threadedly connected to the fixed steel casing 8, and an arc plate 11 is provided at the end of the top screw 10. The arc plate 11 is located inside the fixed steel casing 8. The top screw 10 is threadedly provided on the fixed steel casing 8, and the top screw 10 is rotatably connected to the arc plate 11. The top screw 10 can drive the arc plate 11 to move inside the fixed steel casing 8 to limit the PVC pipe, thereby enabling the fixed steel casing 8 to adapt to more PVC pipes.
[0026] In this embodiment, the bending assembly includes a fixed wheel 5 connected to a fixed steel casing 8. The fixed wheel 5 is welded to the outer wall of the fixed steel casing 8. Preferably, the inner wall of the fixed steel casing 8 is tangent to the fixed wheel 5. The fixed wheel 5 limits the bending of the PVC pipe and ensures the deformation effect of the PVC pipe. The outer wall of the fixed wheel 5 is provided with an arc-shaped groove that mates with the PVC pipe. This arc-shaped groove constrains the PVC pipe and ensures that the PVC pipe always mates with the fixed wheel 5 during bending.
[0027] like Figures 1-3 As shown in Example 2, a PVC pipe spring bender is described. The auxiliary lever assembly includes a lever 2, which is a steel pipe. One end of the lever 2 is fixedly connected to the outer wall of a fixed steel sleeve 8. The other end of the lever 2 is provided with a handle 1. The handle 1 is a triangular structure that is easy for workers to pull. Pulling the handle 1 drives the fixed steel sleeve 8 and the fixed wheel 5 to bend the PVC pipe, achieving high bending efficiency and improving user experience.
[0028] In this embodiment, the rod 2 is provided with a collar 9, which is coaxially arranged with the fixed steel casing 8. The collar 9 is used to secure the PVC pipe inserted into the fixed steel casing 8, preventing the PVC pipe from shaking during bending. The rod 2 is also connected to a bracket 3, which is connected to a fixed wheel 5. The bracket 3 is perpendicularly connected to the rod 2, further securing the fixed wheel 5 and ensuring a more stable connection between the fixed wheel 5 and the fixed steel casing 8, facilitating the lever and the fixed steel casing 8 to drive the fixed wheel 5 to rotate. A foot pedal 4 is connected to the bracket 3, which cooperates with the handle 1 to further facilitate workers in bending the PVC pipe.
[0029] The specific operation process is as follows: pass the spring through the PVC pipe to be processed, and then pass the PVC pipe through the steel sleeve connected to the force arm bracket 3. The spring is placed at the part to be bent, and is also subjected to force on the fixed wheel 5. The worker steps on the pedal and pulls on the handle 1 of the force arm, while applying force to bend the PVC pipe. When the required angle is reached, the pedal and handle 1 are released, and the spring is removed. At this time, the PVC pipe is successfully bent.
[0030] This device is implemented on the existing spring, and is used with a fixed wheel 5 and a steel pipe to insert the PVC pipe. The fixed wheel 5 is used as the force point, and the handle 1 and the steel pipe are connected as a whole. A pedal is installed at the vertical position of the handle 1 to receive force, so that the contact surface between the spring and the pipe can be subjected to greater force, making bending easier. When bending, the spring is passed through the PVC pipe to be bent, and the PVC pipe is then inserted into the steel pipe connected to the handle 1. The handle 1 is rotated around the fixed wheel 5 using the principle of leverage to achieve the bending of the PVC pipe.
[0031] The other structures are the same as those in Example 1.
[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A PVC pipe spring bender, characterized by: The invention comprises a fixed steel sleeve (8) and a bending spring (6), wherein the bending spring (6) is detachably arranged in a PVC pipe, and the fixed steel sleeve (8) is detachably sleeved on the PVC pipe provided with the bending spring (6). One side of the fixed steel sleeve (8) is provided with a bending assembly that cooperates with the PVC pipe, and the other side of the fixed steel sleeve (8) is provided with an auxiliary lever assembly that cooperates with the bending assembly.
2. The PVC pipe spring bender according to claim 1, characterized in that: A support frame (7) is provided on the fixed steel sleeve (8).
3. The PVC pipe spring bender according to claim 2, characterized in that: A top screw (10) is threadedly connected to the fixed steel sleeve (8), and an arc-shaped plate (11) is provided at the end of the top screw (10). The arc-shaped plate (11) is located inside the fixed steel sleeve (8).
4. The PVC pipe spring bender according to any one of claims 1 to 3, characterized in that: The bending assembly comprises a fixed wheel (5), which is connected to a fixed steel sleeve (8).
5. The PVC pipe spring bender according to claim 4, characterized in that: An arc-shaped groove that matches the PVC pipe is provided on the outer wall of the fixed wheel (5).
6. The PVC pipe spring bender according to any one of claims 1 to 3 or 5, characterized in that: The auxiliary lever assembly comprises a rod (2), one end of the rod (2) is fixedly connected to the outer wall of the fixed steel sleeve (8), and the other end of the rod (2) is provided with a handle (1).
7. The PVC pipe spring bender according to claim 6, characterized in that: The handle (1) is a triangular structure frame.
8. The PVC pipe spring bender according to claim 7, characterized in that: The rod (2) is provided with a collar (9), and the collar (9) is coaxially arranged with the fixed steel sleeve (8).
9. The PVC pipe spring bender according to claim 7 or 8, characterized in that: The rod (2) is also connected to a bracket (3), and the bracket (3) is connected to the fixed wheel (5).
10. The PVC pipe spring bender according to claim 9, characterized in that: A foot pedal (4) is connected to the bracket (3).