Pipe bending mold for electric bicycle
By designing a bend mold with a locking and fixing structure, the problem of existing molds being unable to fix bends of different lengths and sizes has been solved, achieving stable fixing and convenient processing of different bends.
Patent Information
- Application Number
- CN202423168005.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing electric bicycle bending molds are difficult to use to fix bending pipes of different lengths and sizes, resulting in processing inconvenience.
A pipe bending mold including a locking structure and a fixing structure was designed. The locking structure adjusts the position of the locking column by adjusting the column and the worm gear, and the fixing structure adjusts the angle of the semi-cylinder by fixing the handle to adapt to pipes of different lengths and inner diameters.
It enables the stable fixing of bent pipes of different lengths and inner diameters, improving the convenience and precision of processing.
Smart Images

Figure CN223531304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric bicycle manufacturing technology, specifically a bending mold for electric bicycles. Background Technology
[0002] The manufacturing process of electric bicycles requires the use of numerous bent pipes. However, existing bending dies for electric bicycles struggle to hold pipes of varying lengths and sizes in place, leading to processing difficulties. To address this issue, a new bending die for electric bicycles is proposed.
[0003] CN209550321U discloses a pipe bending mold for electric bicycles, including an operating table and an electric push rod. Support columns are fixedly installed at the four corners of the bottom of the operating table. A sliding groove is provided on one side of the operating table, and a limit plate is fixedly installed on one side of the groove. The two sides inside the groove are slidably connected to a slider at the bottom of one side of the base. A hydraulic cylinder is fixedly installed at the top of one side of the base, and a bending die is fixedly installed at one end of the hydraulic cylinder. This utility model discloses a pipe bending mold for electric bicycles. A first cylinder gripper can first fix one end of the steel pipe to facilitate bending of the other end of the steel pipe by the bending die at one end of the hydraulic cylinder. When the other end of the steel pipe is bent to a suitable angle, the other end of the bent pipe reaches the second sensing area. The bent pipe can be detected by the detection probe in the second sensing area. A first proximity switch controls the hydraulic cylinder to close, and the electric push rod to reset, preventing the bending die from excessively bending the steel pipe and affecting the quality of the bent pipe.
[0004] Regarding the aforementioned prior art, the inventors believe that the following shortcomings exist: When the other end of the steel pipe is bent to a suitable angle, the other end of the bent pipe reaches the second sensing area. The bent pipe can be detected by the detection probe in the second sensing area. The first proximity switch controls the hydraulic cylinder to close, and the electric push rod to reset, preventing the bending die from excessively bending the steel pipe and affecting the quality of the bent pipe. However, during the processing of this bending die, it will encounter bent pipes of different lengths and sizes, making it difficult to fix bent pipes of different lengths and sizes, which will lead to inconvenience in processing. Utility Model Content
[0005] The purpose of this utility model is to provide a bending die for electric bicycles, in order to solve the problem mentioned in the background art: when the other end of the steel pipe is bent to a suitable angle, the other end of the bent pipe reaches the second sensing area, and the bending pipe can be detected by the detection probe of the second sensing area. The first proximity switch controls the hydraulic cylinder to close, and the electric push rod to reset, so as to prevent the bending die from excessively bending the steel pipe and affecting the quality of the bending pipe. However, during the processing of this bending die, it will encounter bending pipes of different lengths and sizes, and it is difficult to fix bending pipes of different lengths and sizes, which will lead to the problem of inconvenient processing.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to a pipe bending mold for electric bicycles, comprising a base plate:
[0008] The inner cavity of the base plate is movably connected with a locking structure;
[0009] The locking structure includes a movable groove, a connecting shaft, an adjusting column, an adjusting worm gear, a moving column, a fixed column, and a locking column;
[0010] The movable groove is fixedly installed in the inner cavity of the base plate, the connecting shaft is movably connected to the inner side of the movable groove, the adjusting column is fixedly connected to the outer side of the connecting shaft, the adjusting worm is fixedly connected to the outer side of the connecting shaft, the moving column is movably connected to the outer side of the adjusting worm, the fixed column is fixedly connected to the top of the moving column, and the locking column is fixedly connected to the front end of the fixed column.
[0011] Furthermore, two movable slots are respectively opened in the inner cavities at the left and right ends of the base plate, and the inner cavities of the two movable slots are respectively movably connected to connecting shafts, and the adjusting column is connected to the adjusting worm gear through the connecting shafts.
[0012] Furthermore, a fixing structure is fixedly connected to the top of the base plate;
[0013] The fixing structure includes a fixed base, a semi-circular lower column, a connecting column one, a connecting column two, a semi-circular upper column, a connecting column three, and a fixed handle;
[0014] The fixed base is fixedly connected to the top of the base plate, the semi-circular lower column is fixedly connected to the top of the fixed base, the first connecting column is movably connected to the rear end of the semi-circular lower column, the second connecting column is movably connected to the top of the first connecting column, the upper semi-circular column is movably connected to the front end of the second connecting column, the third connecting column is movably connected to the front end of the upper semi-circular column, and the fixed handle is movably connected to the top of the third connecting column.
[0015] Furthermore, the fixing structure also includes a connecting column four and a fixing shaft;
[0016] The fourth connecting column is movably connected to the front end of the semi-circular lower column, and the fixed shaft is movably connected to the top end of the fourth connecting column.
[0017] Furthermore, the first connecting post is connected to the fourth connecting post via a semi-circular lower post, and the top of the fourth connecting post is connected to the fixed handle via the third connecting post.
[0018] Furthermore, a bent tube sample is movably connected to the inner side of the positioning post.
[0019] Furthermore, the bent tube sample is movably connected to the inner cavity of two symmetrically arranged positioning posts;
[0020] The bent tube sample is movably connected to the upper ends of two symmetrically arranged semi-circular upper columns.
[0021] This utility model has the following beneficial effects:
[0022] I. This utility model includes a locking structure. First, the bent tube is placed inside the locking posts symmetrically arranged on both sides. Then, the user can rotate the adjusting posts symmetrically arranged on both sides according to the different lengths of the bent tube. The adjusting posts drive the adjusting worm gear to rotate through the connecting shaft. When the adjusting worm gear rotates, the moving post on its outer side drives the fixed post and locking post on the upper side to adjust their positions back and forth, thereby adjusting the position according to the bent tube of different lengths to facilitate processing.
[0023] Second, based on the above-mentioned beneficial effects, a fixing structure is also included. When the bent pipe is placed on the lower semi-circular column, the user pulls the fixing handle. The fixing handle drives the connecting column four and the fixing shaft to deflect by the connecting column three. When the fixing handle drives the fixing shaft to deflect by the angle, the connecting column one and connecting column two on the side away from the fixing shaft drive the upper semi-circular column to flip downwards, fixing the bent pipe according to different inner diameters, which is convenient for processing. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0026] Figure 2 This is a schematic diagram of the movable groove connection of the card slot structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the connecting shaft of the card slot structure of this utility model;
[0028] Figure 4 This is a schematic diagram of the connection between the fixed base and the fixed structure of this utility model;
[0029] Figure 5 This is a schematic diagram of the three connections of the fixed structure connecting column of this utility model.
[0030] The attached diagram lists the components represented by each number as follows:
[0031] In the diagram: 1. Base plate; 2. Locking structure; 3. Fixing structure; 4. Bent tube sample; 201. Movable groove; 202. Connecting shaft; 203. Adjusting column; 204. Adjusting worm gear; 205. Moving column; 206. Fixed column; 207. Locking column; 301. Fixed base; 302. Semicircular lower column; 303. Connecting column one; 304. Connecting column two; 305. Semicircular upper column; 306. Connecting column three; 307. Fixed handle; 308. Connecting column four; 309. Fixed shaft. Detailed Implementation
[0032] 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.
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0034] Please see Figure 1-5 As shown, this utility model is a bending mold for electric bicycles, including a base plate 1:
[0035] The inner cavity of the base plate 1 is movably connected to a locking structure 2;
[0036] The locking structure 2 includes a movable groove 201, a connecting shaft 202, an adjusting column 203, an adjusting worm gear 204, a moving column 205, a fixed column 206, and a locking column 207;
[0037] The movable groove 201 is fixedly installed in the inner cavity of the base plate 1. The connecting shaft 202 is movably connected to the inner side of the movable groove 201. The adjusting column 203 is fixedly connected to the outer side of the connecting shaft 202. The adjusting worm gear 204 is fixedly connected to the outer side of the connecting shaft 202. The moving column 205 is movably connected to the outer side of the adjusting worm gear 204. The fixed column 206 is fixedly connected to the top of the moving column 205. The locking column 207 is fixedly connected to the front end of the fixed column 206.
[0038] Two movable slots 201 are respectively opened in the inner cavities at the left and right ends of the base plate 1. The inner cavities of the two movable slots 201 are respectively movably connected to the connecting shafts 202. The adjusting column 203 is connected to the adjusting worm gear 204 through the connecting shafts 202.
[0039] When bent pipes of different lengths are placed inside the symmetrically arranged locking posts 207 on both sides, the user can rotate the symmetrically arranged adjusting posts 203 on both sides according to the different lengths of the bent pipes. The adjusting posts 203 drive the adjusting worm gear 204, the outer moving post 205, and the locking posts 207 through the connecting shaft 202 to fix the bent pipes on both sides, so as to facilitate the bending process.
[0040] Working principle: First, the bent pipe is placed inside the symmetrically arranged locking posts 207 on both sides. Then, the user can rotate the symmetrically arranged adjusting posts 203 on both sides according to the different lengths of the bent pipe. The adjusting posts 203 drive the adjusting worm gear 204 to rotate through the connecting shaft 202. When the adjusting worm gear 204 rotates, the moving post 205 on its outer side drives the fixed post 206 and the locking post 207 on the upper side to adjust their positions back and forth, thereby adjusting the position according to the different lengths of the bent pipe to facilitate processing.
[0041] This step allows the overall structure to be fixed according to bends of different lengths, making processing easier.
[0042] Please see Figure 1-5 As shown, this embodiment, based on the above embodiment, also includes a fixing structure 3.
[0043] The top of the base plate 1 is fixedly connected to a fixing structure 3;
[0044] The fixed structure 3 includes a fixed base 301, a semi-circular lower column 302, a connecting column one 303, a connecting column two 304, a semi-circular upper column 305, a connecting column three 306, and a fixed handle 307;
[0045] The fixed base 301 is fixedly connected to the top of the base plate 1. The semi-circular lower column 302 is fixedly connected to the top of the fixed base 301. The first connecting column 303 is movably connected to the rear end of the semi-circular lower column 302. The second connecting column 304 is movably connected to the top of the first connecting column 303. The upper semi-circular column 305 is movably connected to the front end of the second connecting column 304. The third connecting column 306 is movably connected to the front end of the upper semi-circular column 305. The fixed handle 307 is movably connected to the top of the third connecting column 306.
[0046] The fixed structure 3 also includes a connecting column 308 and a fixed shaft 309;
[0047] Connecting post 4 308 is movably connected to the front end of the semi-circular lower post 302, and fixed shaft 309 is movably connected to the top end of connecting post 4 308.
[0048] Connecting post 1 303 is connected to connecting post 4 308 via semi-circular lower post 302, and the top of connecting post 4 308 is connected to connecting post 3 306 and fixed handle 307.
[0049] After the bent pipe is placed in the fixed structure 3, the user can pull the fixed handle 307. The fixed handle 307 drives the upper semicircular column 305 to move up and down through the connecting column assembly, thereby fixing the bent pipe to the inside of the upper semicircular column 305 and the lower semicircular column 302. Through the fixed structure 3, bent pipes with different inner diameters can be placed between the upper semicircular column 305 and the lower semicircular column 302.
[0050] The inner side of the positioning column 207 is movably connected to the bent tube sample 4.
[0051] The bent tube sample 4 is movably connected to the inner cavity of two symmetrically arranged locking posts 207;
[0052] The bent tube sample 4 is movably connected to the upper end of two symmetrically arranged semi-circular upper columns 305.
[0053] Working principle: When the bent pipe is placed on the lower semicircular column 302, the user pulls the fixed handle 307. The fixed handle 307 drives the fourth connecting column 308 and the fixed shaft 309 to deflect by an angle through the third connecting column 306. When the fixed handle 307 drives the fixed shaft 309 to deflect by an angle, the first connecting column 303 and the second connecting column 304 on the side away from the fixed shaft 309 drive the upper semicircular column 305 to flip downward, fixing the bent pipe according to different inner diameters, which is convenient for processing.
[0054] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0055] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A bending die for electric bicycles, characterized in that, Including the base plate (1): The inner cavity of the base plate (1) is movably connected to a locking structure (2); The locking structure (2) includes a movable groove (201), a connecting shaft (202), an adjusting column (203), an adjusting worm gear (204), a moving column (205), a fixed column (206), and a locking column (207). The movable groove (201) is fixedly installed in the inner cavity of the base plate (1). The connecting shaft (202) is movably connected to the inner side of the movable groove (201). The adjusting column (203) is fixedly connected to the outer side of the connecting shaft (202). The adjusting worm (204) is fixedly connected to the outer side of the connecting shaft (202). The moving column (205) is movably connected to the outer side of the adjusting worm (204). The fixed column (206) is fixedly connected to the top of the moving column (205). The locking column (207) is fixedly connected to the front end of the fixed column (206).
2. The bending die for electric bicycles according to claim 1, characterized in that: The bottom plate (1) has two movable slots (201) in the inner cavity at the left and right ends respectively. The inner cavity of the two movable slots (201) is movably connected to the connecting shaft (202). The adjusting column (203) is connected to the adjusting worm gear (204) through the connecting shaft (202).
3. A bending die for electric bicycles according to claim 2, characterized in that: The top of the base plate (1) is fixedly connected to a fixing structure (3); The fixed structure (3) includes a fixed base (301), a semi-circular lower column (302), a connecting column one (303), a connecting column two (304), a semi-circular upper column (305), a connecting column three (306), and a fixed handle (307). The fixed base (301) is fixedly connected to the top of the base plate (1), the semi-circular lower column (302) is fixedly connected to the top of the fixed base (301), the first connecting column (303) is movably connected to the rear end of the semi-circular lower column (302), the second connecting column (304) is movably connected to the top of the first connecting column (303), the upper semi-circular column (305) is movably connected to the front end of the second connecting column (304), the third connecting column (306) is movably connected to the front end of the upper semi-circular column (305), and the fixed handle (307) is movably connected to the top of the third connecting column (306).
4. A bending die for an electric bicycle according to claim 3, characterized in that: The fixed structure (3) also includes a connecting column (308) and a fixed shaft (309). The fourth connecting column (308) is movably connected to the front end of the semi-circular lower column (302), and the fixed shaft (309) is movably connected to the top end of the fourth connecting column (308).
5. A bending die for an electric bicycle according to claim 3, characterized in that: The first connecting post (303) is connected to the fourth connecting post (308) via the semi-circular lower post (302), and the top of the fourth connecting post (308) is connected to the third connecting post (306) and the fixed handle (307).
6. A bending die for an electric bicycle according to claim 1, characterized in that: The inner side of the positioning column (207) is movably connected to a bent tube sample (4).
7. A bending die for an electric bicycle according to claim 6, characterized in that: The bent tube sample (4) is movably connected to the inner cavity of two symmetrically arranged positioning posts (207); The bent tube sample (4) is movably connected to the upper end of two symmetrically arranged semi-circular upper columns (305).
Citation Information
Patent Citations
Pipe bending die for electric bicycle
CN209550321U