Engine water inlet pipe winding die
By designing an engine inlet pipe winding mold that includes a chain rope and a tension screw, the problem of difficult mold removal was solved, enabling convenient processing of irregularly shaped engine inlet pipes. The structure is simple and easy to use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
The mold for removing the existing engine water inlet pipe after vulcanization is difficult to remove, especially for irregularly shaped pipes that require an embedded metal tee pipe, which increases the difficulty of removal.
Design a winding mold comprising a first mold tube, a metal tee tube, and a second mold tube, which are fixed together by a chain rope and a tension screw. Combined with a rotating clamping tube, the mold can be rotated and disassembled after vulcanization.
It enables convenient processing of irregularly shaped engine water inlet pipes. The mold structure is simple, easy to use, and applicable to the processing of engine water inlet pipes of various shapes.
Smart Images

Figure CN224074990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water inlet pipe processing technology, specifically to an engine water inlet pipe winding mold. Background Technology
[0002] The engine water inlet pipe is a flexible hose made of silicone rubber. Its processing technology involves wrapping multiple layers of silicone rubber sheets around a mold and then vulcanizing it. After molding, the internal mold is removed. However, current engine water inlet pipes are often irregularly shaped, making it difficult to remove the internal mold after vulcanization. Furthermore, a metal tee pipe needs to be embedded in the middle of the engine water inlet pipe to create a metal outlet on the finished product, which further increases the difficulty of removing the mold. Utility Model Content
[0003] This utility model addresses the shortcomings of existing technologies by providing an engine inlet pipe winding mold.
[0004] This utility model is achieved through the following technical solution: providing an engine inlet pipe winding mold, including a first mold tube, a metal tee tube, and a second mold tube connected in sequence, and a chain rope inserted into the first mold tube, the metal tee tube, and the second mold tube. One end of the chain rope is connected to the first mold tube, and the other end of the chain rope is connected to a tensioning screw. A tensioning block is fixedly connected inside the second mold tube, and the tensioning screw passes through the tensioning block and has a tightening sleeve threaded to its end.
[0005] In this solution, a chain rope passes through the metal tee tube and the second mold tube, a tensioning screw passes through the tensioning block, and then a tightening sleeve is screwed onto the tensioning screw. Rotating the tightening sleeve tightens the circular chain, thereby fixing the first mold tube, the metal tee tube, and the second mold tube into one unit. They can be separated after processing.
[0006] As an optimization, the chain is a circular link chain, thereby limiting its torsion.
[0007] As an optimization, a blocking plate is fixedly connected to the end of the first mold tube away from the metal tee tube, and a rotating clamping tube coaxial with the first mold tube is fixedly connected to the blocking plate. By inserting the rotating clamping tube into the rotating chuck and clamping it, the entire mold is rotated by the rotating chuck during patch placement, which facilitates patch placement at various positions.
[0008] As an optimization, the outer diameters of the first mold tube, the metal tee tube, and the second mold tube are equal. This ensures consistency in the inner diameter of the engine water inlet pipe.
[0009] As an optimization, the end of the first mold tube is provided with a first insertion ring that inserts into the metal tee tube. This prevents misalignment between the first mold tube and the metal tee tube.
[0010] As an optimization, the end of the second mold tube is provided with a second insertion ring that inserts into the metal tee tube. This prevents misalignment between the second mold tube and the metal tee tube.
[0011] The beneficial effects of this utility model are as follows: The engine inlet pipe winding mold of this utility model can realize the docking and separation of multiple mold tubes and metal tee pipes to form an irregular mold, which is convenient for processing irregular engine inlet pipes. It has a simple structure, is easy to use, and is convenient for processing engine inlet pipes of various shapes. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is an exploded view of the present invention;
[0014] Figure 3 This is a top view of the present invention;
[0015] Figure 4 This is a front view of the present utility model;
[0016] Figure 5 This utility model Figure 4 Sectional view of plane AA;
[0017] As shown in the figure:
[0018] 1. First mold tube, 2. Second mold tube, 3. Metal tee tube, 4. Tensioning screw, 5. Tensioning block, 6. Tightening sleeve, 7. Rotary clamping tube, 8. Chain rope, 9. Blocking plate. Detailed Implementation
[0019] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.
[0020] like Figures 1-5 As shown, this utility model discloses an engine inlet pipe winding mold, comprising a first mold tube 1, a metal tee tube 3, and a second mold tube 2 connected sequentially. All three are metal tubes. The structure of the metal tee tube 3 is as follows: Figure 2 As shown, the metal tee tube 3 needs to be embedded in the finished engine water inlet pipe and the branch pipe extends out of the engine water inlet pipe. The first mold tube 1 and the second mold tube 2 are both straight tubes or tubes with a bend. Since the engine water inlet pipe is a silicone rubber tube, the first mold tube 1 or the second mold tube 2 with a bend can be pulled out of the engine water inlet pipe. In this embodiment, the second mold tube 2 is a straight tube and the first mold tube 1 is an L-shaped tube.
[0021] The outer diameters of the first mold tube 1, the metal tee tube 3, and the second mold tube 2 are equal. To facilitate connection and prevent misalignment, the end of the first mold tube 1 is provided with a first insertion ring that inserts into the metal tee tube 3. In this embodiment, the inner diameter of the first mold tube 1 is smaller than the inner diameter of the metal tee tube 3. In actual use, a portion of the outer ring of the end of the first mold tube 1 is machined off, so that the remaining portion forms the first insertion ring.
[0022] The second mold tube 2 has a second insertion ring at its end that is inserted into the metal tee tube 3. In this embodiment, the inner diameter of the second mold tube 2 is smaller than the inner diameter of the metal tee tube 3. In actual use, a portion of the outer ring of the end of the second mold tube 2 is machined off, so that the remaining portion forms the first insertion ring.
[0023] In order to achieve tension between the first mold tube 1, the metal tee tube 3 and the second mold tube 2 and prevent separation, a chain rope 8 is also included, which is inserted into the first mold tube 1, the metal tee tube 3 and the second mold tube 2. The chain rope 8 can be a deformable long strip structure such as a circular chain or a wire rope, which is convenient for achieving tension. In this embodiment, the chain rope 8 is a circular chain, which is not easy to twist.
[0024] One end of the chain 8 is connected inside the first mold tube 1. In this embodiment, a blocking plate 9 is fixed to the end of the first mold tube 1 away from the metal tee tube 3, and one end of the chain 8 is connected to the blocking plate 9.
[0025] The other end of the chain rope 8 is connected to a tensioning screw 4. A tensioning block 5 is fixedly connected inside the second mold tube 2. The tensioning screw 4 passes through the tensioning block 5, and a tightening sleeve 6 is threadedly connected to the end of the tensioning screw 4. The tightening sleeve 6 is a tubular structure with a threaded inner hole for connecting to the tensioning screw 4. A through hole is opened on the side of the tightening sleeve 6. The tightening sleeve 6 can be tightened by inserting a tool into the through hole.
[0026] A rotating clamping tube 7, coaxial with the first mold tube 1, is fixedly connected to the blocking plate 9. The diameter of the rotating clamping tube 7 is smaller than the inner diameter of the first mold tube 1. Therefore, the smaller diameter rotating clamping tube 7 can be clamped by rotating the chuck, which drives the entire mold to rotate, facilitating the patch application operation.
[0027] How to use this utility model:
[0028] In use, insert the rotating clamping tube 7 into the rotating chuck and clamp it, pass the circular chain through the metal tee tube 3 and the second mold tube 2, pass the tensioning screw 4 through the tensioning block 5, and then screw the tightening sleeve 6 onto the tensioning screw 4. Rotate the tightening sleeve 6 to tighten the circular chain, thereby fixing the first mold tube 1, the metal tee tube 3 and the second mold tube 2 into one unit.
[0029] Then, apply silicone adhesive to the outside of the metal tee tube 3, and cover the outside of the first mold tube 1, the metal tee tube 3 and the second mold tube 2 with silicone rubber sheets. When applying the sheets, rotate the entire mold by rotating the chuck to facilitate the application of the sheets at each position. After completion, vulcanize them together. After vulcanization, unscrew the tightening sleeve 6 to separate the first mold tube 1, the metal tee tube 3 and the second mold tube 2, and remove the first mold tube 1 and the second mold tube 2 from the formed engine water inlet pipe.
[0030] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.
Claims
1. An engine water inlet pipe winding mold characterized by: The utility model relates to a metal three-way pipe moulding device, which comprises a first mould pipe (1), a metal three-way pipe (3) and a second mould pipe (2) which are sequentially butted, and a chain rope (8) which penetrates into the first mould pipe (1), the metal three-way pipe (3) and the second mould pipe (2), one end of the chain rope (8) is connected in the first mould pipe (1), the other end of the chain rope (8) is connected with a tensioning screw rod (4), a tensioning block (5) is fixedly connected in the second mould pipe (2), the tensioning screw rod (4) penetrates through the tensioning block (5) and a screwing sleeve (6) is threadedly connected at the end of the tensioning screw rod (4).
2. An engine water inlet pipe winding mold according to claim 1, characterized in that: The chain rope (8) is a round link chain.
3. An engine water inlet pipe winding mold according to claim 1, characterized in that: A baffle plate (9) is fixedly connected to the end of the first mould pipe (1) which is away from the metal three-way pipe (3), and a rotating clamping pipe (7) which is coaxial with the first mould pipe (1) is fixedly connected to the baffle plate (9).
4. An engine water inlet pipe winding mold according to claim 1, characterized in that: The outer diameters of the first mould pipe (1), the metal three-way pipe (3) and the second mould pipe (2) are equal.
5. An engine water inlet pipe winding mold according to claim 4, characterized in that: A first insertion ring is arranged at the end of the first mould pipe (1) and inserted into the metal three-way pipe (3).
6. An engine water inlet pipe winding mold according to claim 4, characterized in that: A second insertion ring is arranged at the end of the second mould pipe (2) and inserted into the metal three-way pipe (3).