Valve

Abstract

The utility model relates to the technical field of valve structures, and discloses a valve which comprises a valve seat, a valve core and a valve core, a gap channel is formed between the valve cover and the valve seat, and particle deposition piles are stacked in the gap channel; the accommodating groove is formed in the valve cover and comprises an inner groove and an outer groove; the elastic piece is arranged in the inner groove; the support is at least partially clamped to the outer groove, and one end of the elastic piece abuts against and presses the support, so that the support abuts against the valve seat; a first ring groove is formed in the periphery of the support; the first sealing piece is arranged in the first ring groove, and the first sealing piece makes contact with the first ring groove and the inner wall of the containing groove; according to the valve, the support located on one side of the elastic piece, the first sealing piece located on the periphery of the support and the outer groove matched with the support in the containing groove are arranged, so that the elastic piece is isolated from particle deposition piles in the gap channel, the elastic piece is protected and arranged in the containing groove, and particle media are prevented from entering the elastic piece; the elastic piece always keeps good pre-tightening force, and it is guaranteed that the sealing effect of the valve is good.

Description

Technical Field

[0001] The utility model relates to the technical field of valve structures, in particular to a valve. Background Art

[0002] Valves are control components in fluid delivery systems, where solid particles are a common type of fluid transmission medium. Valves are increasingly used in coal chemical industry, polysilicon and other medium particle conditions. The design of valve structure in solid particle media plays a major role in ensuring fluid flow and extending service life.

[0003] In the prior art, valves often rely on pre-loaded springs to ensure the sealing of the valves. However, during the operation of the valves, some granular media will enter the gap of the pre-loaded springs and gradually form a particle deposit pile, thereby affecting the activity of the pre-loaded springs, causing partial or complete failure of the springs, and affecting the sealing effect and service life of the valves. Utility Model Content

[0004] In view of this, the utility model provides a valve to solve the problem that when the valve is working, part of the granular medium will enter the gap of the preload spring, affecting the normal use of the valve.

[0005] The utility model provides a valve, comprising: a valve seat; a valve cover, matched with the valve seat, a gap is provided between the valve cover and the valve seat, and a particle deposit pile is accumulated in the gap; a receiving groove is opened on the valve cover, the receiving groove comprises an inner groove and an outer groove, and the outer groove is arranged close to the gap; an elastic member is arranged in the inner groove; a support is at least partially clamped in the outer groove, one end of the elastic member abuts and presses the support, so that the support abuts against the valve seat; a first annular groove is arranged around the periphery of the support; a first sealing member is arranged in the first annular groove, the first sealing member is in contact with the inner wall of the first annular groove and the inner wall of the receiving groove, and is suitable for preventing particles in the gap from entering the inner groove.

[0006] Beneficial effect: by providing a support located on one side of the elastic member, a first sealing member located on the periphery of the support, and an outer groove in the accommodating groove that cooperates with the support, the support replaces the end of the elastic member to abut against the valve seat, and the first sealing member contacts both the first annular groove and the accommodating groove, so that the elastic member is isolated from the particle deposit pile in the gap, and the elastic member is protected and sealed inside the accommodating groove, which ensures that the pre-tightening effect of the valve remains unchanged while effectively preventing the particle medium from entering the elastic member, so that the elastic member always maintains a good pre-tightening force, ensuring that the valve has an excellent sealing effect, strong practicality, simple structure, and easy parts processing, without increasing excessive parts cost, simple installation method, and no need to increase the operating ability requirements of employees, and excellent particle protection effect, can better protect the spring, effectively avoid spring failure, and extend the service life of the valve.

[0007] In an optional embodiment, it also includes an opening and closing member, which cooperates with the valve seat, and a chamber is formed near the opening and closing member and the valve seat; the chamber is communicated with the gap, and there is a granular medium in the chamber, and the granular medium is suitable for falling into the gap and accumulating in the gap to form the granular deposition pile.

[0008] In an optional embodiment, a first step portion is provided at the valve seat, the first step portion has at least two first step surfaces, and a second annular groove is provided at the first step surface; a second step portion is provided at the valve cover, and at least two second step surfaces are provided at the second step portion; wherein the first step portion cooperates with the second step portion, and the first step surface corresponds to the second step surface respectively.

[0009] In an optional embodiment, it also includes: a second sealing member, which is disposed in a portion of the second annular groove and contacts both the inner wall of the second annular groove and the second step surface; and a third sealing member, which is disposed in another second annular groove.

[0010] In an optional embodiment, one end of the elastic member is connected to the inner wall of the inner groove, and the other end abuts against the support.

[0011] In an optional implementation, the end surface where the support meets the valve seat is arranged in an arc shape.

[0012] In an optional embodiment, the elastic member is a spring.

[0013] In an optional implementation, the first sealing member and the second sealing member are both graphite rings.

[0014] In an optional embodiment, the valve comprises a ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the valve of the utility model;

[0017] Figure 2 It is an enlarged schematic diagram of the A part of the utility model;

[0018] Figure 3It is a schematic diagram of the support of the utility model;

[0019] Figure 4 It is a schematic diagram of the valve seat of the utility model;

[0020] Figure 5 It is a schematic diagram of the valve cover of the utility model.

[0021] Description of reference numerals:

[0022] 1. Valve seat; 11. First step portion; 12. First step surface; 13. Second annular groove; 14. Third sealing member; 2. Valve cover; 21. Second step portion; 22. Second step surface; 3. Gap; 4. Accommodating groove; 41. Inner groove; 42. Outer groove; 5. Elastic member; 6. Support; 61. First annular groove; 7. First sealing member; 8. Opening and closing member; 9. Chamber; 10. Second sealing member. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0028] According to an embodiment of the utility model, a valve is provided, which may be a ball valve, comprising: a valve seat 1; a valve cover 2, wherein the valve cover 2 cooperates with the valve seat 1, a gap 3 is provided between the valve cover 2 and the valve seat 1, and a particle deposit pile is accumulated in the gap 3; a receiving groove 4 is provided in the valve cover 2, wherein the receiving groove 4 comprises an inner groove 41 and an outer groove 42, wherein the outer groove 42 is arranged close to the gap 3; an elastic member 5 is provided in the inner groove 41, wherein the elastic member 5 may be a spring, wherein the elastic member 5 plays a pre-tightening role, and wherein the elastic member 5 cooperates with the support 6 to provide a main sealing effect for the valve; and the support 6 at least partially Clamped in the outer groove 42, the elastic member 5 is in a compressed state, and one end of the elastic member 5 abuts and presses the support 6, so that the support 6 abuts against the valve seat 1, which plays a pre-tightening role; a first annular groove 61 is arranged around the periphery of the support 6; a first sealing member 7 is arranged in the first annular groove 61, and the first sealing member 7 can be a graphite ring, that is, a sealing ring made of graphite, which has many advantages such as corrosion resistance, long service life, and good elastic effect; the first sealing member 7 is in contact with the inner wall of the first annular groove 61 and the inner wall of the accommodating groove 4 to prevent particles at the gap 3 from entering the inner groove 41, so as to ensure the normal operation of the pre-tightening spring.

[0029] The valve also includes an opening and closing member 8, which cooperates with the valve seat 1, and the opening and closing member 8 can be a sphere; a chamber 9 is formed near the opening and closing member 8 and the valve seat 1; the chamber 9 is communicated with the gap 3, and there is a granular medium in the chamber 9, and the granular medium falls into the gap 3 and gradually accumulates in the gap 3 to form the granular deposition pile.

[0030] During the operation of the valve, part of the granular medium enters the chamber 9, and the chamber 9 is connected to the gap 3, and the granular medium continuously falls into the gap 3, and accumulates in the gap 3 to form a granular deposit pile; in the related art, the elastic member 5 directly abuts against the wall surface of the valve seat 1 at the gap 3, that is, part of the elastic member 5 is in the gap 3, causing part of the granular medium to enter the gap of the preload spring, affecting the normal use of the valve; in this embodiment, the support 6 is at least partially placed in the outer groove 42, and the support 6 abuts against the wall surface of the valve seat 1 at the gap 3, and the elastic member 5 is completely placed in the accommodating Inside the groove 4, a first annular groove 61 is opened on the periphery of the support 6, and the first sealing member 7 is placed in the first annular groove 61, and the first sealing member 7 contacts the inner wall of the first annular groove 61 and the inner wall of the accommodating groove 4, so that the support 6 and the first sealing member 7 cooperate to seal the accommodating groove 4, effectively preventing the granular medium in the gap 3 from entering the accommodating groove 4, avoiding the elastic force failure of the elastic member 5, ensuring that the elastic member 5 always works normally, so that the support 6 is stably pressed by the elastic member 5 and abuts against the valve seat 1, ensuring that the preload force of the valve is always reliable, thereby ensuring an excellent sealing effect.

[0031] In this embodiment, by providing a support 6 located on one side of the elastic member 5, a first sealing member 7 located around the support 6, and an outer groove 42 in the accommodating groove 4 that cooperates with the support 6, the support 6 replaces the end of the elastic member 5 to abut against the valve seat 1, and the first sealing member 7 is in contact with the first annular groove 61 and the accommodating groove 4, so that the elastic member 5 is isolated from the particle deposit pile in the gap 3, and the elastic member 5 is protected and sealed inside the accommodating groove 4, which ensures that the pre-tightening effect of the valve remains unchanged while effectively preventing the particle medium from entering the elastic member 5, so that the elastic member 5 always maintains a good pre-tightening force, ensuring that the valve has an excellent sealing effect, strong practicality, simple structure, and is easy to process parts without increasing excessive parts costs. The installation method is simple and the operating ability requirements of employees do not need to be increased. The particle-proof effect is excellent, the spring can be better protected, and spring failure can be effectively avoided, thereby extending the service life of the valve.

[0032] In some embodiments, in combination Figure 1 and Figure 4 As shown, the valve seat 1 is provided with a first step portion 11, and the first step portion 11 has a plurality of steps; the first step portion 11 has at least two first step surfaces 12, and a second annular groove 13 is provided at the first step surface 12; the valve cover 2 is provided with a second step portion 21, and the second step portion 21 is provided with at least two second step surfaces 22; wherein, the valve seat 1 cooperates with the valve cover 2 so that the first step portion 11 cooperates with the second step portion 21, and the first step surface 12 corresponds to the second step surface 22 respectively.

[0033] Furthermore, a second seal 10 is provided in part of the second annular groove 13, and the second seal 10 is in contact with the inner wall of the second annular groove 13 and the second step surface 22; a third seal 14 is provided in another second annular groove 13, and the third seal 14 is in contact with the bottom wall of the second annular groove 13 and the second step surface 22, and the second seal 10 and the third seal 14 provide sealing between the valve seat 1 and the valve cover 2; wherein, the elastic member 5 and the support 6 have a pre-tightening effect, providing a main seal for the valve, and the second seal 10 and the third seal 14 cooperate to provide a secondary seal for the valve, which is highly practical.

[0034] Furthermore, at least two second seals 10 are respectively arranged at different step surfaces, and at least one third seal 14 is arranged at one of the step surfaces; the third seal 14 is located between the at least two second seals 10; wherein, the second seal 10 can be a graphite ring, that is, a sealing ring made of graphite, which has many advantages such as corrosion resistance, long service life, and good elastic effect; the third seal 14 can be an O-ring, that is, a rubber sealing ring with a circular cross-section.

[0035] In some embodiments, in combination Figure 1 As shown, one end of the elastic member 5 is connected to the inner wall of the inner groove 41, and the other end abuts against the support 6; that is, the preload spring is in a compressed state and presses the support 6; the direction of the elastic force of the preload spring is parallel to the axial direction of the support 6, so that the support 6 is evenly compressed and firmly abuts against the valve seat 1.

[0036] Furthermore, the end surface of the support connected to the valve seat is arranged in an arc shape, and the wall at the arc apex of the support abuts against the valve seat, so that the force on the valve seat is concentrated in one place, thereby improving the effect of the preload force.

[0037] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations are all within the scope defined by the present utility model.

Claims

1. A valve, characterized in that: include: Valve seat (1); A valve cover (2) is matched with the valve seat (1), a gap (3) is provided between the valve cover (2) and the valve seat (1), and a particle deposit pile is suitable for being accumulated in the gap (3); A containing groove (4) is provided on the valve cover (2), the containing groove (4) comprising an inner groove (41) and an outer groove (42), the outer groove (42) being arranged close to the gap (3); An elastic member (5) is disposed in the inner groove (41); The support (6) is at least partially clamped in the outer groove (42), and one end of the elastic member (5) abuts against and presses the support (6) so that the support (6) abuts against the valve seat (1); a first annular groove (61) is arranged around the periphery of the support (6); A first sealing member (7) is disposed in the first annular groove (61). The first sealing member (7) contacts the inner wall of the first annular groove (61) and the inner wall of the containing groove (4), and is suitable for preventing particles at the gap (3) from entering the inner groove (41).

2. The valve according to claim 1, characterized in that: It also includes an opening and closing member (8) that cooperates with the valve seat (1), and a chamber (9) is formed near the opening and closing member (8) and the valve seat (1); The chamber (9) is in communication with the gap (3), and contains a granular medium therein. The granular medium is suitable for falling into the gap (3) and for being accumulated in the gap (3) to form the granular deposit pile.

3. The valve according to claim 1, characterized in that: The valve seat (1) is provided with a first step portion (11), the first step portion (11) has at least two first step surfaces (12), and a second annular groove (13) is provided on the first step surface (12); The valve cover (2) is provided with a second step portion (21), and the second step portion (21) is provided with at least two second step surfaces (22); The first step portion (11) cooperates with the second step portion (21), and the first step surface (12) corresponds to the second step surface (22).

4. The valve according to claim 3, characterized in that: It also includes a second sealing member (10), which is disposed in a portion of the second annular groove (13) and contacts both the inner wall of the second annular groove (13) and the second step surface (22); The third sealing member (14) is arranged in the other second annular groove (13).

5. The valve according to claim 1, characterized in that: One end of the elastic member (5) is connected to the inner wall of the inner groove (41), and the other end is abutted against the support (6).

6. The valve according to claim 1, characterized in that The end surface of the support (6) connected to the valve seat (1) is arranged in an arc shape.

7. The valve according to any one of claims 2 to 6, characterized in that: The elastic member (5) is a spring.

8. The valve according to any one of claims 2 to 6, characterized in that: The first sealing member (7) is a graphite ring.

9. The valve according to any one of claims 2 to 6, characterized in that: The valve comprises a ball valve.

Images