An anti-expansion and cracking valve with a force-dissipating structure

Abstract

The present invention discloses an anti-expansion and cracking valve with a force-dissipating structure, which belongs to the field of valves. Through the arrangement of a force-dissipating ring, on the one hand, when liquid flows, the inner wall of the force-dissipating ring is subjected to radial squeezing force under the action of liquid pressure, so that a self-extending ring in the force-dissipating ring is subjected to lateral deformation, and the self-extending layer is pushed to stretch the force-dissipating ring. In this process, part of the pressure generated by the liquid needs to maintain the deformation of the self-extending ring and offset it. Compared with the prior art, the liquid pressure acts completely on the inner wall of the valve body. Under the same liquid pressure, the actual pressure on the inner wall of the valve body can be greatly reduced, thereby effectively protecting the valve body from being easily cracked. On the other hand, when it is necessary to clean impurities in the valve body, after removing it from the pipeline, the force-dissipating ring can be directly removed and cleaned. Compared with the prior art, the cleaning of the inner wall of the valve body is converted into the cleaning of the force-dissipating ring, which significantly reduces the difficulty of cleaning the valve body.

Description

Technical Field

[0001] The invention relates to the field of valves, and more particularly to an anti-expansion and cracking valve with a force-dissipating structure. Background Art

[0002] When transporting fluid, when the fluid flows through the valve, due to the liquid pressure, it will cause a large squeezing force on the inner wall of the valve, and in severe cases it may even easily cause the valve to burst. In addition, after long-term use, the inner wall of the valve is prone to adhere to impurities in the fluid, affecting the smoothness of the liquid flow. In severe cases, the impurities that fall off after deposition are also easy to get stuck between the valve core and the inner wall of the valve body, resulting in the service life of the valve being affected. In the prior art, it is often necessary to dismantle the valve and the pipeline, and then clean the inner wall. Due to the small internal space of the valve, cleaning is difficult. Summary of the invention

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an anti-expansion and cracking valve with a force-dissipating structure. Through the arrangement of a force-dissipating ring, on the one hand, when liquid flows, the inner wall of the force-dissipating ring is subjected to radial extrusion pressure under the action of liquid pressure, so that the self-extending ring in the force-dissipating ring is subjected to lateral deformation, and the self-extending layer is pushed to stretch the force-dissipating ring. In this process, part of the pressure generated by the liquid needs to maintain the deformation of the self-extending ring and offset it. Compared with the prior art, the liquid pressure acts completely on the inner wall of the valve body. Under the same liquid pressure, the actual pressure on the inner wall of the valve body can be greatly reduced, thereby effectively protecting the valve body from being easily cracked. On the other hand, when it is necessary to clean impurities in the valve body, after removing it from the pipeline, the force-dissipating ring can be directly removed and cleaned. Compared with the prior art, the cleaning of the inner wall of the valve body is converted into the cleaning of the force-dissipating ring, which significantly reduces the difficulty of cleaning the valve body.

[0005] 2. Technical solution

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A valve for preventing expansion and cracking with a force-dissipating structure comprises a valve body, a valve core is arranged in a valve cavity of the valve body, a valve stem is fixedly connected to the valve core, and the valve stem movably passes through the valve body, force-dissipating grooves are opened at both left and right ends of the valve body, a force-dissipating ring is inserted in the force-dissipating groove, and the end of the force-dissipating ring extends into the valve body, the force-dissipating ring comprises a limiting concave ring clamped with the force-dissipating groove, a plurality of self-extending layers arranged at one end of the limiting concave ring close to the valve body, and a variable force layer connected between two adjacent self-extending layers, and a self-extending ring is arranged in the variable force layer.

[0008] Furthermore, the cross-section of the energy dissipation groove is L-shaped, and when the energy dissipation ring is inserted into the energy dissipation groove, the end of the energy dissipation ring is flush with the mouth of the energy dissipation groove.

[0009] Furthermore, the inner and outer surfaces of the self-extending layer and the inner surface of the limiting concave ring are coated with a nano dustproof coating, and the self-extending layer is made of a high-density hard structure.

[0010] Furthermore, the variable force layer has a double-layer structure, and the variable force layer includes an adaptive variable layer connected between two self-extending layers close to the inner wall edge of the valve body, and a limiting variable layer connected between two self-extending layers away from the inner wall edge of the valve body, and the ends of the self-extending ring are fixedly connected to the limiting variable layer and the adaptive variable layer respectively.

[0011] Furthermore, the position-limiting variable layer is convex toward the side away from the inner wall of the valve body, and the cross-section of the position-limiting variable layer is an arc-shaped structure, and the adaptive variable layer is a cylindrical annular structure attached to the inner wall of the valve body.

[0012] Furthermore, the position-limiting variable layer is a flexible sealing structure, and the adaptive variable layer is an elastic sealing structure.

[0013] Furthermore, the self-extending ring includes a plurality of evenly distributed ox-horn balls and a plurality of limiting elastic ropes respectively fixedly connected between two adjacent ox-horn balls. The ox-horn balls include a force-guiding ball fixedly connected to the limiting variable layer and two direction-changing angles fixedly connected to one end of the force-guiding ball. The end of the direction-changing angle away from the force-guiding ball is fixedly connected to the adaptive variable layer.

[0014] Furthermore, the deflection angle is an elastic arc-shaped structure that is arched toward the adjacent self-extension layer, and the apex of the arched portion of the deflection angle conflicts with the adjacent self-extension layer.

[0015] Furthermore, the diameter of the force-guiding ball is greater than the radius of the limiting variable layer, and the force-guiding ball is a hard shaped structure.

[0016] Furthermore, when the plurality of adaptive variable layers are stretched to a straight state, the edge of the self-extending layer near the center of the valve body does not contact the valve core.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This scheme adopts the arrangement of a force dissipation ring. On the one hand, when liquid flows, the inner wall of the force dissipation ring is subjected to radial squeezing force under the action of liquid pressure, so that the self-extending ring in the force dissipation ring is subjected to lateral deformation and pushes the self-extending layer to stretch the force dissipation ring. In this process, part of the pressure generated by the liquid needs to maintain the deformation of the self-extending ring and offset it. Compared with the prior art, the liquid pressure acts completely on the inner wall of the valve body. Under the same liquid pressure, the actual pressure on the inner wall of the valve body can be greatly reduced, thereby effectively protecting the valve body from being easily ruptured. On the other hand, when it is necessary to clean the impurities in the valve body, after removing it from the pipeline, the force dissipation ring can be directly removed and cleaned. Compared with the prior art, the cleaning of the inner wall of the valve body is converted into the cleaning of the force dissipation ring, which significantly reduces the difficulty of cleaning the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure when the force dissipation ring of the present invention is not inserted into the force dissipation groove;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the three-dimensional force dissipation ring of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the front part of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the cross section of the force dissipation ring of the present invention;

[0025] Figure 6 for Figure 5 The structural diagram at A in the middle;

[0026] Figure 7 It is a schematic structural diagram of the self-extending ring stereogram of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the ox horn ball of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of a partial cross section of the present invention when a fluid passes through it.

[0029] Description of the numbers in the figure:

[0030] 1 valve body, 2 valve stem, 21 valve core, 3 force dissipation groove, 4 force dissipation ring, 41 limit concave ring, 42 self-extending layer, 43 variable force layer, 431 limit variable layer, 432 adaptive variable layer, 51 ox horn ball, 52 limit elastic rope, 511 guide ball, 512 change angle. DETAILED DESCRIPTION

[0031] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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.

[0034] Embodiment 1:

[0035] See also Figure 1-2 , an anti-expansion and cracking valve with a force-removing structure, comprising a valve body 1, a valve core 21 is arranged in the valve cavity of the valve body 1, a valve stem 2 is fixedly connected to the valve core 21, and the valve stem 2 movably penetrates the valve body 1, force-removing grooves 3 are opened at both ends of the valve body 1, a force-removing ring 4 is inserted in the force-removing groove 3, and the end of the force-removing ring 4 extends into the valve body 1. On the one hand, the force-removing ring 4 can form a protective layer on the inner wall surface of the valve body 1, effectively reducing the pressure from the liquid on the valve body 1 and effectively avoiding expansion and cracking. On the other hand, due to the shielding of the force-removing ring 4, most of the impurities in the liquid fall on the force-removing ring 4 instead of the inner wall of the valve body 1, effectively reducing the amount of impurities directly adhering to the inner wall of the valve body 1. When cleaning is needed, the force-removing ring 4 is directly removed, the force-removing ring 4 is cleaned, and then the inner wall of the valve body 1 with less impurities is cleaned, which significantly reduces the difficulty of cleaning.

[0036] like Figure 4The cross-section of the energy dissipation groove 3 is L-shaped, and when the energy dissipation ring 4 is inserted into the energy dissipation groove 3, the end of the energy dissipation ring 4 is flush with the mouth of the energy dissipation groove 3, and the inner and outer surfaces of the self-extending layer 42 and the inner surface of the limiting concave ring 41 are coated with a nano dustproof coating, so that impurities in the liquid are not easy to deposit on their surfaces, but flow away with the liquid, effectively reducing the amount of impurities adhering to the inner wall of the valve body 1 and the energy dissipation ring 4, thereby effectively extending the time interval for cleaning and maintenance of the valve body 1, and the self-extending layer 42 is made of a high-density hard structure, so that the gravity of the self-extending layer 42 is relatively large under a limited volume, so that when it is squeezed by the self-extending ring, the force required to overcome when pushing the self-extending layer 42 is relatively large, so that the consumption of liquid pressure is relatively large.

[0037] See also Figure 3 and 5 The force dissipation ring 4 includes a limiting concave ring 41 clamped with the force dissipation groove 3, a plurality of self-extending layers 42 arranged at one end of the limiting concave ring 41 close to the valve body 1, and a variable force layer 43 connected between two adjacent self-extending layers 42, and a self-extending ring is arranged in the variable force layer 43.

[0038] See also Figure 6 The variable force layer 43 is a double-layer structure. The variable force layer 43 includes an adaptive variable layer 432 connected between the two self-extending layers 42 close to the inner wall edge of the valve body 1 and a limiting variable layer 431 connected between the two self-extending layers 42 away from the inner wall edge of the valve body 1. The ends of the self-extending ring are fixedly connected to the limiting variable layer 431 and the adaptive variable layer 432 respectively. The limiting variable layer 431 and the adaptive variable layer 432 and the space enclosed by the two adjacent self-extending layers 42 are used to accommodate the self-extending ring. When subjected to force, the liquid pressure acts on the limiting variable layer 431 and is transmitted to the horn ball 51 through the limiting variable layer 431. Since the limiting variable layer 431 can directly contact the liquid with a larger area, it has a better effect on offsetting the liquid pressure.

[0039] The limiting variable layer 431 protrudes toward the side away from the inner wall of the valve body 1, and the cross-section of the limiting variable layer 431 is an arc-shaped structure, so that its surface area is relatively large, which is convenient for liquid pressure to act on its surface, making the self-extending ring connected thereto more easily subjected to force and deforming laterally therewith. The adaptive variable layer 432 is a cylindrical annular structure attached to the inner wall of the valve body 1. The limiting variable layer 431 is a flexible sealing structure. The limiting variable layer 431 effectively limits the extension range of the force dissipation ring 4. When it is fully extended, the lateral span of the force dissipation ring 4 is the largest. The adaptive variable layer 432 is an elastic sealing structure, so that when it is pushed by the lateral extension of the self-extending ring, it is stretched under force, which facilitates the movement of the self-extending layer 42.

[0040] See also Figure 7 The self-extending ring includes a plurality of evenly distributed horn balls 51 and a plurality of position-limiting elastic ropes 52 respectively fixedly connected between two adjacent horn balls 51. Figure 8 The ox-horn ball 51 includes a guide ball 511 fixedly connected to the limiting variable layer 431 and two change angles 512 fixedly connected to the end of the guide ball 511 close to 532. The end of the change angle 512 away from the guide ball 511 is fixedly connected to the adaptive variable layer 432, so that the self-extending ring is relatively stable between the two self-extending layers 42, and it is not easy for the ox-horn ball 51 and the limiting elastic rope 52 to change direction.

[0041] The deflection angle 512 is an elastic arc structure that arches toward the adjacent self-extension layer 42, so that when subjected to radial force, the deflection angle 512 has a tendency to continue to bend along the original arc bending direction, thereby realizing the top toward the self-extension layer 42, so that the self-extension ring as a whole can undergo lateral deformation, and the apex of the arched part of the deflection angle 512 conflicts with the adjacent self-extension layer 42, so that when the liquid pressure acts on 5, it can be immediately transmitted to the self-extension layer 42, causing it to move outward, so that the liquid pressure can be better offset. The diameter of the force-guiding ball 511 is larger than the radius of the limiting variable layer 431, so that part of the force-guiding ball 511 exceeds the edge of the limiting variable layer 431 and is located between the two self-extending layers 42. When subjected to force, the force-guiding ball 511 is not easily offset to the outside of the space between the two self-extending layers 42. When subjected to force, it is effectively guaranteed to continue to move between the two self-extending layers 42, so that the bending of the turning angle 512 has a better pushing effect on the self-extending layer 42. The force-guiding ball 511 is a hard fixed structure, so that it is not easy to deform when subjected to liquid pressure.

[0042] When the multiple adaptive variable layers 432 are stretched to a straight state, the edge of the self-extending layer 42 near the center of the valve body 1 does not contact the valve core 21, effectively ensuring that when the force dissipation ring 4 is stretched to the maximum, it is not easy to affect the normal rotation of the valve core 21 in the valve body 1.

[0043] By setting the force dissipation ring 4, on the one hand, Fig. 9, the solid arrow indicates the direction of pressure generated by the fluid on the inner wall of the valve body 1, and the hollow dotted arrow indicates the extension direction of the force dissipation ring 4. When the liquid is flowing, the inner wall of the force dissipation ring 4 is subjected to radial extrusion force under the action of the liquid pressure, so that the self-extending ring in the force dissipation ring 4 is subjected to lateral deformation, and the self-extending layer 42 is pushed to stretch the force dissipation ring 4, thereby increasing the coverage area of ​​the inner wall of the valve body 1. In this process, the pressure generated by the liquid partially needs to maintain the deformation of the self-extending ring and offset it. Compared with the prior art, the liquid pressure acts completely on the inner wall of the valve body 1. Under the same liquid pressure, the actual pressure on the inner wall of the valve body 1 can be greatly reduced, thereby effectively protecting the valve body 1 from being easily ruptured. On the other hand, when it is necessary to clean the impurities in the valve body 1, after removing it from the pipeline, the force dissipation ring 4 can be directly removed and cleaned. Compared with the prior art, the cleaning of the inner wall of the valve body 1 is converted into the cleaning of the force dissipation ring 4, which significantly reduces the difficulty of cleaning the valve body 1.

[0044] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. An anti-expansion crack valve with a force dissipation structure, comprising a valve body (1), a valve core (21) being arranged in a valve cavity of the valve body (1), a valve stem (2) being fixedly connected to the valve core (21), and the valve stem (2) movably passing through the valve body (1), characterized in that: The valve body (1) is provided with a force dissipation groove (3) at both left and right ends, a force dissipation ring (4) is inserted into the force dissipation groove (3), the end of the force dissipation ring (4) extends into the valve body (1), the force dissipation ring (4) comprises a limiting concave ring (41) engaged with the force dissipation groove (3), a plurality of self-extending layers (42) arranged at one end of the limiting concave ring (41) close to the inside of the valve body (1), and a variable force layer (43) connected between two adjacent self-extending layers (42), and a self-extending ring is arranged in the variable force layer (43); The variable force layer (43) is a double-layer structure, comprising an adaptive variable layer (432) connected between the two self-extending layers (42) close to the inner wall edge of the valve body (1) and a position-limiting variable layer (431) connected between the two self-extending layers (42) away from the inner wall edge of the valve body (1), and the ends of the self-extending ring are respectively fixedly connected to the position-limiting variable layer (431) and the adaptive variable layer (432); The position-limiting variable layer (431) is convex toward a side away from the inner wall of the valve body (1), and the cross-section of the position-limiting variable layer (431) is an arc-shaped structure, and the adaptive variable layer (432) is a cylindrical annular structure attached to the inner wall of the valve body (1); The position-limiting variable layer (431) is a flexible sealing structure, and the adaptive variable layer (432) is an elastic sealing structure.

2. The anti-expansion and cracking valve with a force-dissipating structure according to claim 1, characterized in that: The cross section of the energy dissipation groove (3) is L-shaped, and when the energy dissipation ring (4) is inserted into the energy dissipation groove (3), the end of the energy dissipation ring (4) is flush with the mouth of the energy dissipation groove (3).

3. The anti-expansion and cracking valve with a force-dissipating structure according to claim 2, characterized in that: The inner and outer surfaces of the self-extending layer (42) and the inner surface of the limiting concave ring (41) are coated with a nano dustproof coating, and the self-extending layer (42) is made of a high-density hard structure.

4. The anti-expansion and cracking valve with a force-dissipating structure according to claim 1, characterized in that: The self-extending ring comprises a plurality of evenly distributed ox-horn balls (51) and a plurality of position-limiting elastic ropes (52) respectively fixedly connected between two adjacent ox-horn balls (51); the ox-horn balls (51) comprise a force-guiding ball (511) fixedly connected to the position-limiting variable layer (431) and two direction-changing angles (512) fixedly connected to one end of the force-guiding ball (511) close to (532); the end of the direction-changing angle (512) away from the force-guiding ball (511) is fixedly connected to the adaptive variable layer (432).

5. The anti-expansion and cracking valve with a force-dissipating structure according to claim 4, characterized in that: The deflection angle (512) is an elastic arc-shaped structure that arches toward the adjacent self-extension layer (42), and the apex of the arched portion of the deflection angle (512) is in conflict with the adjacent self-extension layer (42).

6. The anti-expansion and cracking valve with a force-dissipating structure according to claim 4, characterized in that: The diameter of the force-guiding ball (511) is greater than the radius of the position-limiting variable layer (431), and the force-guiding ball (511) is a hard, fixed structure.

7. The anti-expansion and cracking valve with a force-dissipating structure according to claim 4, characterized in that: When the plurality of adaptive variable layers (432) are stretched to a straight state, the edge of the self-extending layer (42) near the center of the valve body (1) does not contact the valve core (21).

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