Valve element limiting connector
By integrating the filter cartridge and pressure sensor design in the limit joint of the hydraulic valve, the problem of single function of the limit joint of the existing hydraulic valve is solved and impurities residue is realized, efficient filtration and anti-blocking functions are improved, and the valve is improved The normality of core movement and the practicality of the joint.
Patent Information
- Application Number
- CN202421041772.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The existing hydraulic valve spool limit joint has a single function and the material easily brings impurities when entering the valve body through the limit joint, causing the valve spool movement to be affected.
Design a valve core limit joint, including a joint assembly, including a filter cartridge, a fixing ring, a cartridge, a slot and a limit rod, filter the material flowing through the filter cartridge, and use a pressure sensor to detect when impurities in the filter cartridge are fully loaded. Disconnect to clean.
It realizes integrated filtering function on a single joint to prevent impurities from entering the valve body, extend the normal cycle of valve core movement, and improves the practicality of the limit joint.
Smart Images
Figure CN222479102U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valve core joints, in particular to a valve core limiting joint. Background Art
[0002] A hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of a pressure regulating valve. It is usually used in combination with an electromagnetic pressure regulating valve and can be used to remotely control the on / off of the oil, gas, and water pipeline systems of a hydropower station. It is often used for clamping, controlling, lubricating, and other oil circuits. There are direct-acting and pilot-operated types, and the pilot-operated type is more commonly used.
[0003] The limit joint on the existing hydraulic valve core mainly limits the displacement of the main control valve core and adjusts the opening of the valve core to control the flow rate and obtain different speeds. However, this type of joint has a single function, and the material is prone to bring certain impurities when entering the valve body through the limit joint. The residual impurities affect the normal movement of the valve core in the long run. Therefore, we propose a valve core limit joint. Utility Model Content
[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.
[0005] To this end, the technical solution adopted in this utility model is:
[0006] A valve core limit joint, comprising: a valve body assembly and a joint assembly; wherein the valve body assembly comprises a valve body and a valve core arranged in the valve body; the joint assembly is arranged on the valve body, and the joint assembly comprises a joint body assembled on the valve body, a slot opened on the inner side of the joint body, a spring arranged in the slot, a fixing ring fixed to the top of the spring and located in the slot, a filter cartridge spanned on the middle of the fixing ring, a protective sleeve fixed to the bottom of the fixing ring and located between the spring and the fixing ring, a slot opened at the bottom of the joint body and located below the protective sleeve, and a limit rod fixed to the inner end of the joint body.
[0007] In a preferred example, the present invention can be further configured as follows: a pressure sensor is installed on the inner wall of the joint body.
[0008] In a preferred example, the utility model can be further configured as follows: the bottom of the filter cartridge is in a conical structure.
[0009] In a preferred example, the present invention can be further configured as follows: the aperture value of the fixing ring gradually increases from the inside to the outside.
[0010] In a preferred example, the present invention can be further configured as follows: the limiting rod is composed of a plurality of rod-shaped structures symmetrically distributed on the joint body.
[0011] In a preferred example, the utility model can be further configured as follows: a filter screen is fixed on the limit rod, the filter screen has a conical structure, and the side of the filter screen is arranged closely against the inner wall of the valve body.
[0012] The above technical solution of the utility model has the following beneficial technical effects:
[0013] The utility model can utilize the filter cartridge to filter the material flowing through through the joint assembly. When debris accumulates and blocks the exposed part of the bottom of the filter cartridge, the strong pressure will push the filter cartridge to move downward appropriately, so that the upper part of the filter cartridge is gradually exposed, thereby preventing blockage after filtration. Until the filter cartridge is full of impurities and is detected by the pressure sensor, the connecting pipe on the joint body is disconnected and the filter cartridge is taken out for cleaning. This solution sets a filtering function on a single joint, which greatly improves the practicality of the limit joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a cross-sectional view of the valve core limit joint of the utility model;
[0015] Figure 2 It is an enlarged view of the valve core limit joint A of the utility model.
[0016] Reference numerals:
[0017] 100, valve body assembly; 110, valve body; 120, valve core;
[0018] 200, connector assembly; 210, connector body; 211, pressure sensor; 220, slot; 230, spring; 240, fixing ring; 250, filter cartridge; 260, protective cartridge; 270, slot; 280, limit rod; 290, filter screen. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0020] A valve core limiting joint provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings.
[0021] Combination Figure 1-2 As shown, the utility model provides a valve core limit joint, comprising: a valve body assembly 100 and a joint assembly 200; wherein the valve body assembly 100 comprises a valve body 110 and a valve core 120 disposed in the valve body 110.
[0022] The joint assembly 200 is arranged on the valve body 110, and the joint assembly 200 includes a joint body 210 assembled on the valve body 110, a slot 220 opened on the inner side of the joint body 210, a spring 230 arranged in the slot 220, a fixing ring 240 fixed to the top of the spring 230 and located in the slot 220, a filter cartridge 250 mounted in the middle of the fixing ring 240, a protective sleeve 260 fixed to the bottom of the fixing ring 240 and located between the spring 230 and the fixing ring 240, and a filter cartridge 250 opened at the bottom of the joint body 210 and located below the protective sleeve 260. The slot 270 and the limiting rod 280 fixed to the inner end of the joint body 210 can filter the material flowing through the filter cartridge 250 through the joint assembly 200. When debris accumulates and blocks the exposed part at the bottom of the filter cartridge 250, strong pressure will push the filter cartridge 250 to move downward appropriately, so that the upper part of the filter cartridge 250 is gradually exposed, thereby achieving anti-blocking after filtration until the filter cartridge 250 is full of impurities and detected by the pressure sensor 211. After disconnecting the connecting pipe on the joint body 210, the filter cartridge 250 can be taken out and cleaned. This solution sets a filtering function on a single joint, which greatly improves the practicality of the limiting joint.
[0023] Specifically, a pressure sensor 211 is installed on the inner wall of the joint body 210, which can detect excessive pressure after the filter cartridge 250 is completely blocked, and then issue an alarm to replace it.
[0024] Furthermore, the bottom of the filter cartridge 250 is in a conical structure, which facilitates the accumulation of impurities from the middle without affecting the filtering effect on the sides.
[0025] On the other hand, the aperture value of the fixing ring 240 increases gradually from the inside to the outside, which can keep the flow rate above stable after the bottom is blocked and avoid the phenomenon of flow reduction.
[0026] It should be noted that the limit rod 280 is composed of multiple groups of rod-shaped structures symmetrically distributed on the joint body 210. The limit rod 280 can limit the movement range of the valve core 120, adapt to the adjustment of the maximum stroke limit of different valve cores, and improve its versatility.
[0027] Furthermore, a filter screen 290 is fixed on the limiting rod 280 , and the filter screen 290 has a conical structure, and the side of the filter screen 290 is arranged close to the inner wall of the valve body 110 , which can play a role of secondary filtration at the bottom, and the filter screen 290 is made of elastic material and can be inserted into the valve core 120 .
[0028] The working principle and use process of the utility model are as follows: first, the joint body 210 is screwed onto the valve body 110, and the position of the limit rod 280 is adjusted, and then the conveying pipe is connected to the joint body 210. After the material enters the joint body 210, the filter cartridge 250 filters the material flowing through. When the debris accumulates and blocks the exposed part at the bottom of the filter cartridge 250, the strong pressure will push the filter cartridge 250 to move downward appropriately, so that the upper part of the filter cartridge 250 is gradually exposed, thereby achieving anti-blocking after filtration, until the filter cartridge 250 is full of impurities and detected by the pressure sensor 211, and then the filter cartridge 250 can be taken out and cleaned after the connecting pipe on the joint body 210 is disconnected.
[0029] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.
Claims
1. A valve core limit joint, characterized in that: include: A valve body assembly (100) comprises a valve body (110) and a valve core (120) disposed in the valve body (110); A joint assembly (200) is arranged on the valve body (110), and comprises a joint body (210) assembled on the valve body (110), a slot (220) opened on the inner side of the joint body (210), a spring (230) arranged in the slot (220), a fixing ring (240) fixed to the top of the spring (230) and located in the slot (220), a filter cartridge (250) spanned in the middle of the fixing ring (240), a protective sleeve (260) fixed to the bottom of the fixing ring (240) and located between the spring (230) and the fixing ring (240), a slot (270) opened on the bottom of the joint body (210) and located below the protective sleeve (260), and a limit rod (280) fixed to the inner side end of the joint body (210).
2. The valve core limit joint according to claim 1, characterized in that: A pressure sensor (211) is installed on the inner wall of the joint body (210).
3. The valve core limit joint according to claim 1, characterized in that: The bottom of the filter cartridge (250) is in a conical structure.
4. The valve core limit joint according to claim 1, characterized in that: The aperture value of the fixing ring (240) gradually increases from the inside to the outside.
5. The valve core limit joint according to claim 1, characterized in that: The limiting rod (280) is composed of a plurality of groups of rod-shaped structures symmetrically distributed on the joint body (210).
6. The valve core limit joint according to claim 1, characterized in that: A filter screen (290) is fixed on the limiting rod (280), the filter screen (290) is in a conical structure, and the side edge of the filter screen (290) is arranged in close contact with the inner wall of the valve body (110).