Rubber hydraulic hose assembly with built-in cooling device
By incorporating a cooling chamber and sealing groove into the hydraulic hose assembly, and utilizing coolant to cool the bellows, the problem of hydraulic hose damage under high-temperature conditions is solved, achieving both sealing performance and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAANSHAN FEIDA BELLOWS MANUFACTURING CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
Smart Images

Figure CN224497928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic hose assembly technology, and in particular to a rubber hydraulic hose assembly with a built-in cooling device. Background Technology
[0002] Hydraulic hose assemblies are important components in hydraulic systems, used to transmit high-pressure fluids.
[0003] During the use of hydraulic hose assemblies, high-pressure and high-temperature liquids are transmitted. Occasionally, excessively high temperatures may occur during this process, which can damage the pipelines of the hydraulic hose assembly and thus affect the service life of the pipelines in the hydraulic hose assembly. Utility Model Content
[0004] The purpose of this utility model is to solve the problems in the prior art mentioned above, and to propose a rubber hydraulic hose assembly with a built-in cooling device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A rubber hydraulic hose assembly with a built-in cooling device includes: a high-pressure hose, a corrugated pipe, and a connector body;
[0007] The corrugated pipe is fitted with welded bodies at both ends;
[0008] The weld body is provided with a joint body;
[0009] The connector body is connected to the cooling cavity formed in the inner wall of the bellows;
[0010] High-pressure hoses are connected to both ends of the corrugated pipe, and the corrugated pipe is connected to the high-pressure hoses.
[0011] Furthermore, the cooling cavity is arranged spirally around the inner wall of the bellows.
[0012] Furthermore, a sealing groove is provided on the inner wall of the weldment body, and a sealing gasket is provided on one side of the sealing groove. The sealing gasket is located on the inner wall of the weldment body, and the outer sides of the connectors at both ends of the corrugated pipe are snapped into the sealing groove.
[0013] Furthermore, the sealing gasket is annular.
[0014] Furthermore, the weld body is also provided with a threaded hole, and the joint body is threadedly connected to the threaded hole.
[0015] Furthermore, a protective tube is fitted onto the outer side of the corrugated pipe.
[0016] Furthermore, the protective tube is a glass fiber braided tube.
[0017] Compared with existing technologies, the advantages of this invention are:
[0018] 1. This utility model cools the bellows by introducing coolant into the connector body and then into the cooling chamber of the bellows, thus preventing damage to the bellows and affecting its service life in the event of excessively high temperatures.
[0019] 2. This utility model provides a sealing groove and a sealing gasket on the inner wall of the weldment body. When the bellows connector is engaged with the sealing groove, it provides multiple seals between the inner wall of the weldment body and the outer side of the bellows connector, preventing coolant leakage. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of a rubber hydraulic hose assembly with a built-in cooling device proposed in this utility model.
[0021] Figure 2 This is a schematic diagram of the welded structure in a rubber hydraulic hose assembly with a built-in cooling device proposed in this utility model.
[0022] In the diagram: 1. High-pressure hose, 2. Welded body, 21. Sealing groove, 22. Sealing gasket, 3. Protective tube, 4. Corrugated pipe, 5. Connector body, 6. Threaded hole. Detailed Implementation
[0023] The present invention will be further explained below with reference to the accompanying drawings.
[0024] like Figure 1-2 As shown, this utility model provides a rubber hydraulic hose assembly with a built-in cooling device, including: a high-pressure hose 1, a corrugated pipe 4, and a connector body 5.
[0025] Welded bodies 2 are welded to both ends of the bellows 4, and the connector of the bellows 4 is located inside the welded body 2. The outer part of the connector of the bellows 4 is inserted into the sealing groove 21 opened on the inner wall of the welded body 2 to form a double seal. A sealing gasket 22 is provided on one side of the sealing groove 21. The sealing gasket 22 is annular and is used to seal the gap between the inner wall of the outermost end of the welded body 2 and the outer side of the connector of the bellows 4. Thus, a multi-seal structure is formed between the inner wall of the sealed welded body 2 and the outer side of the connector of the bellows 4 to provide a seal and prevent coolant leakage.
[0026] The connector body 5 is installed on the weld body 2 through a threaded hole, which facilitates replacement of the connector body 5 when it is damaged. There are two weld bodies 2, located on both sides of the bellows 4, which are used as the machine inlet and outlet of the coolant.
[0027] The connector 5 is connected to the cooling chamber opened in the inner wall of the bellows 4. The cooling chamber is used for the flow of coolant to cool the inside of the bellows 4 and remove excess heat, so that the temperature of the bellows 4 is within its tolerance range, avoiding damage to the bellows due to excessive temperature and affecting the service life of the bellows. The bellows 4 is arranged in a spiral around the inner wall of the bellows 4, so that the coolant can cool the bellows 4 more evenly, thereby achieving a better cooling effect.
[0028] High-pressure hoses 1 are connected to both ends of the bellows 4, and the bellows 4 and the high-pressure hoses 1 are connected. High-temperature and high-pressure liquid enters from the inlet of the high-pressure hose 1 at one end of the assembly and flows out from the high-pressure hose 1 at the other end of the assembly.
[0029] The working principle of this utility model:
[0030] The high-temperature, high-pressure liquid first enters from the inlet of the high-pressure hose 1 at one end of the assembly, then flows into the bellows 4, and flows out from the high-pressure hose 1 at the other end of the assembly.
[0031] Throughout the entire process, the surface temperature of the bellows 4 will be detected by a temperature sensor. When the temperature is too high, the valve body will be opened automatically to allow the coolant to flow into the cooling chamber through the connector body 5, thereby cooling the inside of the bellows 4 and removing excess heat.
[0032] When the temperature returns to the acceptable range of bellows 4, close the valve body and stop cooling to prevent excessively high temperatures from damaging the bellows and affecting its service life.
[0033] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.
Claims
1. A rubber hydraulic hose assembly with a built-in cooling device, characterized in that, include: High-pressure hose (1), corrugated pipe (4) and connector body (5); The corrugated pipe (4) has welded bodies (2) installed at both ends; The weld body (2) is provided with a joint body (5); The connector body (5) is connected to the cooling cavity opened in the inner wall of the bellows (4); High-pressure hoses (1) are connected to both ends of the corrugated pipe (4), and the corrugated pipe (4) and the high-pressure hoses (1) are connected.
2. The rubber hydraulic hose assembly with integrated cooling device according to claim 1, characterized in that: The cooling chamber is surrounded by the inner wall of the bellows (4) and is arranged in a spiral shape.
3. The rubber hydraulic hose assembly with integrated cooling device according to claim 1, characterized in that: A sealing groove (21) is provided on the inner wall of the weld body (2), and a sealing gasket (22) is provided on one side of the sealing groove (21). The sealing gasket (22) is located on the inner wall of the weld body (2), and the outer sides of the connectors at both ends of the corrugated pipe (4) are snapped into the sealing groove (21).
4. The rubber hydraulic hose assembly with integrated cooling device according to claim 3, characterized in that: The sealing gasket (22) is annular.
5. The rubber hydraulic hose assembly with integrated cooling device according to claim 3, characterized in that: The weld body (2) is also provided with a threaded hole (6), and the joint body (5) is threadedly connected in the threaded hole (6).
6. The rubber hydraulic hose assembly with integrated cooling device according to claim 1, characterized in that: The corrugated pipe (4) is fitted with a protective pipe (3) on the outside.
7. The rubber hydraulic hose assembly with integrated cooling device according to claim 6, characterized in that: The protective tube (3) is a glass fiber braided tube.