Throttle valve with filtering device
By integrating the filter device in the throttle valve, the problems of easy blockage of the throttle valve and high welding process cost in the refrigeration system are solved, and a more stable and economical fluid filtration and sealing effect is achieved.
Patent Information
- Application Number
- CN202420240721.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The throttle valves in the existing refrigeration system are prone to leakage due to the high welding process cost and easy leakage, and the throttle holes in the hydraulic system are easily blocked by mechanical impurities and dirt, which affects the flow.
Design a throttle valve with filtering device, and the filter mechanism is installed in the main pipe, including a sleeve and a filter element, combined with a spring, a limiting block, a sealing ring, a protective cover and an elastic block, to achieve filtration and sealing of the oil. , reduces the risk of blockage and the cost of use.
Effectively filtering mechanical impurities and dirt in the oil, improving the stability and sealing effect of the throttle valve, reducing maintenance and replacement costs, and avoiding liquid spillage.
Smart Images
Figure CN222229585U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of throttle valve equipment, in particular to a throttle valve with a filtering device. Background Art
[0002] A throttle valve is a valve that controls the flow of a fluid by changing the throttle section or throttle length. A throttle valve and a one-way valve can be connected in parallel to form a one-way throttle valve. A throttle valve and a one-way throttle valve are simple flow control valves. In a quantitative pump hydraulic system, a throttle valve and a relief valve can be used together to form three throttle speed control systems, namely, an oil inlet throttle speed control system, an oil return throttle speed control system, and a bypass throttle speed control system. However, in refrigeration systems, filters and two-way throttle valves are mostly used in the form of a welded assembly of the two, which has many process flows and high processing costs. The welds are prone to leakage during use. In addition, in existing hydraulic systems, since the oil flow area of the throttle valve hole is very small, mechanical impurities in the oil or colloid, asphalt, carbon slag and other dirt precipitated due to oxidation accumulate at the throttle hole, causing the throttle hole to be blocked, affecting the normal flow of oil in the hydraulic system. To this end, we propose a throttle valve with a filter device. Utility Model Content
[0003] The purpose of the utility model is to provide a throttle valve with a filtering device to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a throttle valve with a filtering device, comprising a main pipeline and a connecting pipe, a valve seat is arranged in the main pipeline, and a valve core is installed in the valve seat, a filtering mechanism is arranged on the front side of the valve seat, the filtering mechanism comprises a sleeve and a filter element, a spring is installed in the groove on the side of the sleeve, a sealing mechanism is arranged on the outside of the connecting end of the main pipeline and the connecting pipe, the sealing mechanism comprises a sealing ring, and the sealing ring is installed in the mounting groove of the protective cover.
[0005] In the above solution, a threaded head is provided at the end of the main pipe, and the threaded head is threadedly connected to the internal thread in the end of the connecting pipe.
[0006] In the above solution, a limiting block is arranged inside the connecting pipe.
[0007] In the above solution, the sealing ring is threadedly engaged with the connecting ends of the main pipeline and the connecting pipe.
[0008] In the above solution, an elastic block is arranged on the inner side of the protective cover.
[0009] In the above solution, the protective cover is a metal or plastic cover.
[0010] In the above solution, through holes are provided in the middle of the valve seat and the valve core.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the throttle valve with a filtering device has a simple and reasonable structural design and is highly practical. By arranging a filtering mechanism inside the main pipeline and embedding the filter element into the valve body, mechanical impurities and precipitated dirt in the oil can be effectively filtered, thereby preventing the throttle hole from being blocked and improving the stability of the throttle valve. By arranging structures such as springs, limit blocks, and threaded heads, the filtering mechanism can be conveniently connected and repaired and replaced with various other structures, and is detachable and replaceable, thereby reducing the cost of use. By arranging sealing rings, protective covers, and elastic blocks, the interface between the main pipeline and the connecting pipe can be initially and secondary sealed by the sealing ring, and the sealing ring can be pressed against the interface under the action of the elastic block, thereby further improving the connection stability and sealing effect of the equipment and preventing liquid from overflowing from the interface. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model.
[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the structure at point A in the middle.
[0014] In the figure: 1 main pipeline, 11 connecting pipe, 12 threaded head, 13 valve seat, 14 valve core, 15 sleeve, 16 filter element, 17 groove, 18 spring, 19 limit block, 2 sealing ring, 21 protective cover, 22 installation groove, 23 elastic block. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] See also Figure 1-2 The utility model provides a technical solution: a throttle valve with a filtering device, comprising a main pipeline 1 and a connecting pipe 11, a valve seat 13 is arranged in the main pipeline 1, and a valve core 14 is installed in the valve seat 13, a filtering mechanism is arranged on the front side of the valve seat 13, and the filtering mechanism comprises a sleeve 15 and a filter element 16. By arranging the filtering mechanism inside the main pipeline 1 and embedding the filter element 16 into the valve body, mechanical impurities and precipitated dirt in the oil can be effectively filtered, thereby preventing the throttling hole from being blocked and improving the stability of the throttle valve.
[0017] A spring 18 is installed in the groove 17 on the side of the sleeve 15 . A sealing mechanism is provided outside the connecting end of the main pipeline 1 and the connecting pipe 11 . The sealing mechanism includes a sealing ring 22 . The sealing ring 22 is installed in the mounting groove 22 of the protective cover 21 .
[0018] In the above solution, the end of the main pipe 1 is provided with a threaded head 12, and the threaded head 12 is screwed to the internal thread in the end of the connecting pipe 11. The screw connection method can facilitate the replacement and maintenance of the equipment.
[0019] By providing structures such as the spring 18, the limit block 19, and the threaded head 12, the filter mechanism can be conveniently connected to and repaired and replaced with other structures, and is detachable and replaceable, thereby reducing the cost of use.
[0020] In the above solution, a limiting block 19 is arranged inside the connecting pipe 11. The limiting block 19 is fixed to the connecting pipe 11, and the limiting block 19 abuts against the side of the sleeve 15 to form a limiting mechanism to ensure the installation stability of the filtering mechanism.
[0021] In the above solution, the sealing ring 22 is threadedly matched with the connecting ends of the main pipeline 1 and the connecting pipe 11. Specifically, the connecting ends of the main pipeline 1 and the connecting pipe 11 are provided with corresponding threaded connecting parts.
[0022] In the above solution, an elastic block 23 is provided inside the protective cover 21. The elastic block 23 can be a silicone rubber or plastic block with good elasticity, and the elastic block 23 can press the sealing ring 2 down from the top, thereby improving the sealing effect at the pipeline interface.
[0023] By providing the sealing ring 2, the protective cover 21 and the elastic block 23, the sealing ring 2 can be used to perform preliminary and secondary sealing on the interface between the main pipeline 1 and the connecting pipe 11, and the sealing ring 2 is pressed against the interface under the action of the elastic block 23, thereby further improving the connection stability and sealing effect of the equipment and preventing liquid from overflowing from the interface.
[0024] In the above solution, the protective cover 21 is a metal or plastic cover.
[0025] In the above solution, through holes are formed in the middle of the valve seat 13 and the valve core 14 .
[0026] Working principle:
[0027] This throttle valve with a filtering device is provided with a filtering mechanism on the front side of the valve seat 13. The filtering mechanism includes a sleeve 15 and a filter element 16. By arranging the filtering mechanism inside the main pipeline 1 and embedding the filter element 16 into the valve body, mechanical impurities and precipitated dirt in the oil can be effectively filtered, thereby preventing the throttling hole from being blocked and improving the stability of the throttle valve. A spring 18 is installed in the groove 17 on the side of the sleeve 15. The spring 18 cooperates with the limit block 19 to limit and fix the filtering mechanism. By arranging structures such as the spring 18, the limit block 19, and the threaded head 12, the filtering mechanism can be conveniently connected and repaired and replaced with various other structures. By arranging the sealing ring 2, the protective cover 21, and the elastic block 23, the interface between the main pipeline 1 and the connecting pipe 11 can be initially and secondary sealed by the sealing ring 2, and the sealing ring 2 is pressed against the interface under the action of the elastic block 23, further improving the connection stability and sealing effect of the equipment and preventing liquid from overflowing from the interface.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A throttle valve with a filtering device, comprising a main pipeline (1) and a connecting pipe (11), characterized in that: A valve seat (13) is provided in the main pipeline (1), and a valve core (14) is installed in the valve seat (13); a filter mechanism is provided on the front side of the valve seat (13), and the filter mechanism comprises a sleeve (15) and a filter core (16); a spring (18) is installed in a groove (17) on the side of the sleeve (15); a sealing mechanism is provided on the outside of the connecting end of the main pipeline (1) and the connecting pipe (11), and the sealing mechanism comprises a sealing ring (2); and the sealing ring (2) is installed in a mounting groove (22) of the protective cover (21).
2. A throttle valve with a filter device according to claim 1, characterized in that: The end of the main pipe (1) is provided with a threaded head (12), and the threaded head (12) is threadedly connected to the internal thread in the end of the connecting pipe (11).
3. A throttle valve with a filter device according to claim 1, characterized in that: A limiting block (19) is arranged inside the connecting pipe (11).
4. A throttle valve with a filter device according to claim 1, characterized in that: The sealing ring (2) is threadedly engaged with the connecting ends of the main pipeline (1) and the connecting pipe (11).
5. The throttle valve with a filter device according to claim 1, characterized in that: An elastic block (23) is arranged on the inner side of the protective cover (21).
6. The throttle valve with a filter device according to claim 1, characterized in that: The protective cover (21) is a metal or plastic cover.
7. The throttle valve with a filter device according to claim 1, characterized in that: Through holes are provided in the middle of the valve seat (13) and the valve core (14).