A check valve disc

Abstract

The application relates to a check valve core, which comprises a valve seat, a sleeve connected to the valve seat, water inlets and outlets respectively arranged at two ends of the valve seat, a communicating port arranged on the side of the sleeve, a sealing element arranged in the sleeve, an elastic element for connecting the sealing element to the sleeve, an installation cylinder connected to the valve seat, and the installation cylinder is inserted into the valve seat and contacts the sleeve. The sleeve is placed into the valve seat, and then the installation cylinder is inserted into the valve seat and contacts the sleeve, so that the traditional clamping structure is replaced, the component is not required to be deformed by external force, the installation process is simplified, and the operation difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of check valves, and more particularly to a check valve spool. Background Technology

[0002] Check valves, as valves that control the unidirectional flow of media, are widely used in fluid systems, and their valve core is the core component that realizes the check function.

[0003] Reference Figure 1 The valve core in the prior art includes a mounting base and a connecting cylinder. The mounting base is open at both ends. One end of the connecting cylinder is connected to the mounting base. The connecting cylinder is fitted with a snap ring. The inner wall of the mounting base is provided with a snap groove. The connecting cylinder is snapped into the mounting base through the snap ring and the snap groove. A sealing element and an elastic element are connected inside the connecting cylinder. The elastic element drives the sealing element to seal the opening at one end of the mounting base.

[0004] Regarding the aforementioned technologies, the installation process requires external force to deform the snap-fit ​​ring and insert it into the snap-fit ​​groove for fixation. The deformation of the snap-fit ​​ring requires a large external force, making the installation process inconvenient and laborious. Utility Model Content

[0005] To facilitate the installation of the sleeve, this application provides a check valve core.

[0006] The check valve core provided in this application adopts the following technical solution: A check valve core includes a valve seat and a sleeve. The sleeve is connected to the valve seat. The valve seat has an inlet and an outlet at both ends. One end of the sleeve is connected to the inlet. A connecting port is provided on the periphery of the sleeve. A sealing element is provided inside the sleeve. The sealing element is connected to the sleeve through an elastic element. The elastic element is used to drive the sealing element to move and cause the sealing element to seal the inlet. An installation cylinder is connected inside the valve seat. The installation cylinder is inserted into the valve seat. One end of the installation cylinder contacts the sleeve. The installation cylinder drives the sleeve to press tightly against the valve seat.

[0007] By adopting the above technical solution, when in use, the sleeve is placed into the valve seat, and then the mounting cylinder is inserted into the valve seat. One end of the mounting cylinder contacts the sleeve and is pressed and fixed, thereby replacing the traditional snap-fit ​​structure. No external force is required to deform the parts, simplifying the installation process and reducing the difficulty of operation.

[0008] Optionally, a guide port is provided at one end of the sleeve. The guide port is used to guide the medium close to the seal and push the seal to seal the valve seat inlet.

[0009] By adopting the above technical solution, when in use, the medium enters the sleeve through the guide port, and the guide port guides the medium to flow towards the seal, which enhances the thrust of the medium on the seal, so that the seal seals the water inlet and effectively prevents the medium from flowing back.

[0010] Optionally, the sleeve is slidably fitted with a connecting sleeve, the connecting sleeve being slidably fitted outside the sleeve, the elastic element being a spring, one end of the spring being connected to a sealing element, the other end of the spring being connected to the connecting sleeve, the connecting sleeve being connected to an adjusting element, the adjusting element being used to drive the connecting sleeve to move and adjust the distance between the spring and the water inlet.

[0011] By adopting the above technical solution, during use, the adjusting component drives the connecting sleeve to slide along the sleeve, thereby changing the distance between the spring and the water inlet, and thus adjusting the preload of the spring on the seal, so as to adapt to different medium pressure requirements and improve the versatility of the device.

[0012] Optionally, the adjusting element is a first magnetic block, which is connected to the connecting sleeve.

[0013] By adopting the above technical solution, the first magnetic block is attracted by external magnetic force, which drives the connecting sleeve to move along the sleeve, thereby achieving non-contact adjustment and making the operation more convenient.

[0014] Optionally, the connecting sleeve is connected to a slider, and the outer circumferential wall of the sleeve is provided with a sliding groove. The length direction of the sliding groove is consistent with the axial direction of the sleeve, and the slider slides along the axial direction of the sleeve and is engaged with the inner wall of the sliding groove.

[0015] By adopting the above technical solution, during use, the moving connecting sleeve drives the slider to slide along the sliding groove. The sliding groove guides the slider, so that the connecting sleeve moves smoothly along the sleeve axis, minimizing the risk of deviation during adjustment.

[0016] Optionally, the inner wall of the sliding groove is provided with a plurality of limiting grooves, which are distributed sequentially at intervals along the length of the sliding groove, and the slider slides and engages in the limiting grooves.

[0017] By adopting the above technical solution, when adjusting the position of the connecting sleeve, the slider slides and engages in the sliding groove. When the slider moves to the corresponding position, it slides into the limiting groove to achieve positioning. Several limiting grooves correspond to different adjustment positions, thereby minimizing displacement due to vibration during use.

[0018] Optionally, a sound-emitting element is provided in the limiting groove, and the slider is used to strike the sound-emitting element to make the sound-emitting element produce sound. The sound emitted by the sound-emitting element in different limiting grooves is different.

[0019] By adopting the above technical solution, when in use, the slider slides into different limit slots to strike the sound-emitting component, and the sound-emitting component emits different sounds. The operator can judge and adjust the gear by sound, thereby realizing audible adjustment and improving the convenience of operation.

[0020] Optionally, the sound-generating element is a metal spring, one end of which is connected to a sleeve, and a striking block is connected to the end of the slider near the sleeve. The striking block is hemispherical and is used to contact the metal spring.

[0021] By adopting the above technical solution, when in use, the striking block slides and engages with the slider in the limiting groove. The slider drives the striking block to contact the metal spring, and the striking block strikes the metal spring, causing the metal spring to make a sound. Different metal springs make different sounds, thus achieving clear gear indication through a simple structure and reducing the difficulty of adjustment.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. When in use, place the sleeve into the valve seat, then insert the mounting sleeve into the valve seat. One end of the mounting sleeve contacts the sleeve and presses it firmly to fix it. This replaces the traditional snap-fit ​​structure, eliminating the need for external force to deform the parts, simplifying the installation process and reducing the difficulty of operation. 2. A connecting sleeve is provided on the sleeve, the connecting sleeve is slidably fitted outside the sleeve, the elastic element is a spring, one end of the spring is connected to the sealing element, the other end of the spring is connected to the connecting sleeve, the connecting sleeve is connected to an adjusting element, the adjusting element is used to drive the connecting sleeve to move and adjust the distance between the spring and the water inlet; 3. The first magnetic block is attracted by external magnetic force, which drives the connecting sleeve to move along the sleeve, thereby achieving non-contact adjustment and making operation more convenient. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the valve core in the prior art.

[0024] Figure 2 This is a three-dimensional structural diagram of Example 1.

[0025] Figure 3 This is a cross-sectional view of Embodiment 1, used to show the spring and the sealing ball.

[0026] Figure 4 This is a cross-sectional view of Embodiment 2, used to show the connecting sleeve.

[0027] Figure 5 This is an enlarged view of part A in Example 2.

[0028] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Connecting cylinder; 3. Snap-fit ​​ring; 4. Snap-fit ​​groove; 100. Valve seat; 110. Inlet; 120. Outlet; 200. Sleeve; 210. Guide port; 220. Support ring; 230. Sliding groove; 240. Limiting groove; 250. Mounting groove; 260. Metal spring; 270. Connecting port; 300. Mounting cylinder; 400. Sealing ball; 500. Spring; 600. Connecting sleeve; 610. First port; 620. Slider; 621. Striking block; 700. First magnetic block. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 2-5 This application will be described in further detail.

[0030] Embodiment 1 of this application discloses a check valve core.

[0031] Reference Figure 2 and Figure 3 A check valve core includes a valve seat 100 and a sleeve 200. The valve seat 100 has an inlet 110 and an outlet 120 at its two ends along its length. The sleeve 200 is located inside the valve seat 100, with one end connected to the inlet 110. A connecting port 270 is located on the circumference of the sleeve 200. An mounting cylinder 300 is connected inside the valve seat 100, located near the outlet 120 end of the sleeve 200. The mounting cylinder 300 is inserted into the valve seat 100 and is press-fitted to the inner wall of the valve seat 100. One end of the mounting cylinder 300 contacts the sleeve 200, causing the sleeve 200 to press firmly against the valve seat 100.

[0032] Reference Figure 2 and Figure 3 A guide port 210 is provided at one end of the sleeve 200 near the outlet 120, which connects the sleeve 200 and the valve seat 100. The sleeve 200 is connected to the inner wall of the valve seat 100 through a support ring 220. The support ring 220 is sleeved at one end of the sleeve 200 near the inlet 110. The central axis of the support ring 220 is collinear with the central axis of the sleeve 200. The periphery of the support ring 220 contacts the inner wall of the valve seat 100. One end of the support ring 220 contacts the inner wall of the valve seat 100, and the other end of the support ring 220 contacts one end of the mounting cylinder 300.

[0033] Reference Figure 2 and Figure 3The sleeve 200 is equipped with a sealing element, which is connected to the sleeve 200 via an elastic element. The sealing element is a sealing ball 400, and the elastic element is a spring 500. The length direction of the spring 500 is consistent with the length direction of the sleeve 200. One end of the spring 500 along the length direction is connected to the inner wall of the sleeve 200 near the outlet 120, and the other end of the spring 500 is connected to the sealing ball 400. The diameter of the sealing ball 400 is larger than the diameter of the inlet 110.

[0034] The implementation principle of this embodiment 1 is as follows: When installing the sleeve 200, the sleeve 200 is placed inside the valve seat 100, and the installation cylinder 300 is inserted into the valve seat 100, thereby driving the sleeve 200 to press against the inner wall of the valve seat 100, thus facilitating the installation of the sleeve 200.

[0035] Example 2 The difference between this embodiment and Embodiment 1 is as follows: Reference Figure 3 and Figure 4 A connecting sleeve 600 is slidably fitted onto a sleeve 200. The connecting sleeve 600 has a first opening 610, which communicates with a guide opening 210. The central axis of the connecting sleeve 600 is collinear with the central axis of the sleeve 200. The connecting sleeve 600 slides along the length of the sleeve 200. The end of the spring 500 away from the sealing ball 400 is connected to the inner wall of one end of the connecting sleeve 600. An adjusting component is connected to the connecting sleeve 600. The adjusting component is used to move the connecting sleeve 600 and adjust the distance between the spring 500 and the inlet 110. The adjusting component is a first magnetic block 700, which is embedded in the outer circumferential wall of the connecting sleeve 600.

[0036] Reference Figure 4 and Figure 5 A slider 620 is connected to the inner wall of the connecting sleeve 600. A sliding groove 230 is formed on the outer circumferential wall of the sleeve 200. The length direction of the sliding groove 230 is consistent with the axial direction of the sleeve 200. The slider 620 slides along the length direction of the sleeve 200 and is engaged with the inner wall of the sliding groove 230. A plurality of limiting grooves 240 are formed on the inner wall of the sliding groove 230. The length direction of the limiting grooves 240 is consistent with the circumferential direction of the sleeve 200, and the plurality of limiting grooves 240 are evenly spaced along the length direction of the sliding groove 230. The slider 620 slides along the circumferential direction of the sleeve 200 and is engaged with the limiting grooves 240.

[0037] Reference Figure 4 and Figure 5A striking block 621 is connected to one end of the slider 620 near the sleeve 200. The striking block 621 is hemispherical and made of rubber. A mounting groove 250 is formed on the inner wall of one end of the limiting groove 240 along the length of the sleeve 200. The length direction of the mounting groove 250 is consistent with the length direction of the sleeve 200. A sound-generating element, a metal spring 260, is connected within the mounting groove 250. The length direction of the metal spring 260 is consistent with the length direction of the sleeve 200. One end of the metal spring 260 is connected to the mounting groove 250, and the other end is located within the limiting groove 240, with the other end tilted away from the sleeve 200. The lengths of the metal springs 260 in different mounting grooves 250 are different.

[0038] The implementation principle of this embodiment 2 is as follows: In use, the preload of the spring 500 on the sealing ball 400 can be adjusted as needed. The first magnetic block 700 is attracted by external magnetic force. Rotating the connecting sleeve 600 causes the slider 620 to enter the sliding groove 230, facilitating the movement of the connecting sleeve 600 along the length of the sleeve 200. This causes the spring 500 to move with the connecting sleeve 600, thereby adjusting the distance between one end of the spring 500 and the inlet 110. When the connecting sleeve 600 moves to the corresponding position, rotating it causes the slider 620 to enter the corresponding limiting groove 240, ensuring a stable connection of the connecting sleeve 600 to the sleeve 200. This facilitates adjustment of the preload of the spring 500 on the sealing ball 400, improving the versatility of the device.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A check valve core, comprising a valve seat (100) and a sleeve (200), the sleeve (200) being connected to the valve seat (100), the valve seat (100) having an inlet (110) and an outlet (120) respectively at both ends, one end of the sleeve (200) being connected to the inlet (110), a connecting port (270) being provided on the periphery of the sleeve (200), a sealing element being provided inside the sleeve (200), the sealing element being connected inside the sleeve (200) via an elastic element, the elastic element being used to drive the sealing element to move and cause the sealing element to seal the inlet (110), characterized in that: An mounting sleeve (300) is connected inside the valve seat (100). The mounting sleeve (300) is inserted into the valve seat (100). One end of the mounting sleeve (300) is in contact with the sleeve (200). The mounting sleeve (300) drives the sleeve (200) to press against the valve seat (100).

2. The check valve core according to claim 1, characterized in that: The sleeve (200) has a guide port (210) at one end. The guide port (210) is used to guide the medium close to the seal and push the seal to seal the inlet (110) of the valve seat (100).

3. The check valve core according to claim 2, characterized in that: The sleeve (200) is slidably fitted with a connecting sleeve (600), the connecting sleeve (600) is slidably fitted outside the sleeve (200), the elastic element is a spring (500), one end of the spring (500) is connected to the sealing element, and the other end of the spring (500) is connected to the connecting sleeve (600). The connecting sleeve (600) is connected with an adjusting element, which is used to drive the connecting sleeve (600) to move and adjust the distance between the spring (500) and the water inlet (110).

4. The check valve core according to claim 3, characterized in that: The adjusting component is a first magnetic block (700), which is connected to the connecting sleeve (600).

5. A check valve core according to claim 2, characterized in that: The connecting sleeve (600) is connected to a slider (620). The outer circumferential wall of the sleeve (200) is provided with a sliding groove (230). The length direction of the sliding groove (230) is consistent with the axial direction of the sleeve (200). The slider (620) slides along the axial direction of the sleeve (200) and is fitted to the inner wall of the sliding groove (230).

6. A check valve core according to claim 5, characterized in that: The inner wall of the sliding groove (230) is provided with a plurality of limiting grooves (240), and the plurality of limiting grooves (240) are distributed sequentially at intervals along the length direction of the sliding groove (230), and the slider (620) slides and engages in the limiting grooves (240).

7. A check valve core according to claim 6, characterized in that: The limiting groove (240) is provided with a sound-emitting element, and the slider (620) is used to strike the sound-emitting element and make the sound-emitting element produce sound. The sound-emitting elements in different limiting grooves (240) produce different sounds.

8. A check valve core according to claim 7, characterized in that: The sound-generating component is a metal spring (260), one end of which is connected to a sleeve (200). The slider (620) is connected to a striking block (621) near the sleeve (200). The striking block (621) is hemispherical and is used to contact the metal spring (260).

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