Elastic compensation component for valve element of straight stroke stop valve

Abstract

The utility model discloses an elastic compensation component for a valve core of a straight stroke stop valve, which belongs to the technical field of elastic sealing of the valve core and comprises a valve body, water pipes are symmetrically and fixedly mounted on the outer side of the valve body, and a first stop block and a second stop block are fixedly mounted at opposite angles of the inner wall of the valve body. A valve element body is fixedly installed between the first check block and the second check block, air cylinders are symmetrically and fixedly installed at the top end of the valve body, a sealing box is fixedly installed at the output ends of the air cylinders, a supporting rod is fixedly installed at the top end of the inner wall of the sealing box, and the bottom end of the supporting rod penetrates through the top end of the valve body in a sealed and sliding mode and is connected with an extrusion rod in a sliding and sleeving mode. A buffering assembly is installed between the supporting rod and the extrusion rod, a sealing disc is fixedly installed at the bottom end of the extrusion rod, a sealing block is fixedly installed at the bottom end of the sealing disc, and a through hole matched with the sealing block is formed in the valve element body. According to the device, the sealing performance and stability of the valve element body are improved, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic sealing of valve cores, in particular to an elastic compensation component for a valve core of a linear stop valve. Background Art

[0002] In fluid control systems, linear globe valves play a crucial role, and the sealing performance of their valve cores directly impacts the stability and efficiency of the entire system. However, existing technologies often suffer from sealing issues with linear globe valve cores, such as poor sealing, severe wear, and short service life. These issues not only lead to fluid leakage, impacting system operation, but also increase maintenance costs and reduce overall economic benefits.

[0003] Specifically, the sealing components of traditional linear globe valves typically utilize a rigid structure that lacks sufficient elastic compensation. Over extended use, the seals are susceptible to deformation and wear due to fluid erosion, temperature fluctuations, and the frequent opening and closing of the valve core, leading to a decrease in sealing performance. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an elastic compensation component for a valve core of a linear stop valve, aiming to improve the problem that the sealing component is prone to deformation and wear, thereby leading to a decrease in sealing performance.

[0005] The utility model is implemented as follows: an elastic compensation component for the valve core of a straight-stroke stop valve, comprising a valve body, water pipes symmetrically fixedly installed on the outside of the valve body, two water pipes fixedly installed with flanges relatively far away from one end, a first block and a second block fixedly installed diagonally on the inner wall of the valve body, a valve core body fixedly installed between the first block and the second block and dividing the valve body into two areas, a cylinder symmetrically fixedly installed on the top of the valve body, a sealing box fixedly installed on the output end of the cylinder, the bottom end of the sealing box is open, a support rod fixedly installed on the top of the inner wall of the sealing box, the bottom end of the support rod sealingly slides through the top of the valve body and slidably sleeves the extrusion rod, a buffer assembly is installed between the support rod and the extrusion rod, a sealing disk fixedly installed on the bottom end of the extrusion rod, a sealing block fixedly installed on the bottom end of the sealing disk, and a through hole matching the sealing block is provided on the valve core body.

[0006] In a preferred technical solution of the present invention, the output end of the cylinder is fixedly connected to the top end of the inner wall of the sealing box, and the cylinder is symmetrically arranged on both sides of the support rod.

[0007] In the preferred technical solution of the present invention, a first sealing groove is provided at the top of the valve body to match the bottom of the sealing box, a first sealing ring is fixedly installed on the outside of the support rod, a second sealing groove is provided at the top of the valve body to match the first sealing ring, and the bottom end of the sealing box and the bottom end of the first sealing ring are in the same plane.

[0008] In the preferred technical solution of the present invention, a reinforcement block is fixedly installed on the outside of the support rod, a slider is fixedly installed on one end of the reinforcement block, a sliding groove matching the slider is provided on one side of the first stop block, and the cross-section of the slider is T-shaped.

[0009] In a preferred technical solution of the present invention, the sealing block is in the shape of a truncated cone, and the diameter of the bottom end of the sealing block is smaller than the diameter of the top end.

[0010] In the preferred technical solution of the present invention, a third sealing groove matching the sealing disk is provided at the top of the valve core body, the sealing groove is communicated with the through hole, and a sealing gasket matching the sealing groove is fixedly installed at the bottom end of the sealing block.

[0011] In the preferred technical solution of the present invention, the buffer assembly includes a spring and a telescopic rod, a circular groove is provided at the bottom end of the support rod, the spring is fixedly installed on the top end of the inner wall of the circular groove, the top end of the spring is fixedly installed on the top end of the extrusion rod, the top end of the inner wall of the circular groove and the top end of the extrusion rod are also fixedly installed on the telescopic rod, and the spring is sleeved on the outside of the telescopic rod.

[0012] In the preferred technical solution of the present invention, the telescopic rod consists of a sleeve rod and a pull rod, the sleeve rod is fixedly installed on the top of the inner wall of the circular groove, the bottom end of the sleeve rod is slidably sleeved on the pull rod, the bottom end of the pull rod is fixedly connected to the top of the extrusion rod, and a limit block is symmetrically fixedly installed on the top outer side of the pull rod. The inner wall of the sleeve rod is provided with a limit groove matching the limit block, and the limit block is slidably connected to the inner wall of the limit groove.

[0013] The beneficial effects of the utility model are:

[0014] Improve sealing performance: By adopting elastic compensation components, the utility model can achieve effective compensation for the valve core sealing surface and ensure close fitting of the sealing surface.

[0015] Enhanced stability: The elastic compensation component of the utility model cooperates with the support rod and the extrusion rod through the buffer assembly, which can play a good buffering role during the opening and closing process of the valve core, reduce the impact and vibration of the valve core, and improve the stability and reliability of the entire valve.

[0016] Broaden the scope of application: Since the elastic compensation component of the utility model has good adaptability and stability, it can be applied to straight-stroke stop valves of different specifications and models, thereby broadening the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram of an elastic compensation component for a straight-stroke stop valve core provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the internal structure of the valve body is provided for the embodiment of the utility model;

[0020] Figure 3 A side view of a valve body is provided for an embodiment of the present utility model;

[0021] Figure 4 A structural schematic diagram of a buffer assembly is provided for an embodiment of the present utility model.

[0022] In the figure: 110-valve body; 111-water pipe; 112-first stopper; 113-second stopper; 114-valve core body; 120-cylinder; 121-sealing box; 1211-first sealing groove; 122-support rod; 1221-reinforcement block; 1222-slider; 123-extrusion rod; 124-sealing disk; 125-sealing block; 126-through hole; 127-first sealing ring; 130-spring; 131-telescopic rod. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 3The utility model provides a technical solution: an elastic compensation component for a straight-stroke stop valve core, comprising a valve body 110, a water pipe 111 symmetrically fixedly installed on the outside of the valve body 110, a first stopper 112 and a second stopper 113 fixedly installed diagonally on the inner wall of the valve body 110, a valve core body 114 fixedly installed between the first stopper 112 and the second stopper 113 and dividing the valve body 110 into two areas, a cylinder 120 symmetrically fixedly installed on the top of the valve body 110, and a fixedly installed output end of the cylinder 120. The sealing box 121 has an opening at the bottom end, and a support rod 122 is fixedly installed on the top end of the inner wall of the sealing box 121. The bottom end of the support rod 122 slides through the top end of the valve body 110 and slides into the extrusion rod 123. A buffer assembly is installed between the support rod 122 and the extrusion rod 123. A sealing disk 124 is fixedly installed on the bottom end of the extrusion rod 123. A sealing block 125 is fixedly installed on the bottom end of the sealing disk 124. A through hole 126 matching the sealing block 125 is provided on the valve core body 114.

[0025] In some specific embodiments, the output end of the cylinder 120 is fixedly connected to the top of the inner wall of the sealing box 121, and the cylinder 120 is symmetrically arranged on both sides of the support rod 122 to ensure that the cylinder 120 can maintain a precise position and a stable motion trajectory when driving the sealing box 121 and subsequent components. The symmetrical setting of the cylinder 120 helps to balance the force and reduce deviation or damage caused by excessive force on one side, thereby improving durability and reliability.

[0026] In some specific implementation schemes, a first sealing groove 1211 is provided at the top of the valve body 110, which is aligned with the bottom of the sealing box 121, and a first sealing ring 127 is fixedly installed on the outside of the support rod 122. A second sealing groove is provided at the top of the valve body 110, which matches the first sealing ring 127. The bottom end of the sealing box 121 and the bottom end of the first sealing ring 127 are on the same plane. The use of the first sealing groove 1211 and the second sealing groove, and the installation of the first sealing ring 127, effectively prevent the fluid from leaking from the top of the valve body 110 and enhance the sealing performance. This double sealing design not only improves the reliability of the seal, but also can resist sealing failure caused by pressure fluctuations or temperature changes to a certain extent, thereby ensuring the normal operation of the angular stroke ball valve.

[0027] In some specific embodiments, a reinforcement block 1221 is fixedly mounted on the outside of support rod 122. A slider 1222 is fixedly mounted on one end of reinforcement block 1221. A slot is provided on one side of first stopper 112 to match slider 1222. Slider 1222 has a T-shaped cross section. The matching of slider 1222 and slot allows support rod 122 to maintain a stable trajectory during movement, reducing the risk of seal failure due to shaking or deviation. This design not only improves the durability of the entire elastic compensation component, but also makes its movement more precise and reliable.

[0028] In some specific implementation schemes, the sealing block 125 is set as a cone, and the bottom diameter of the sealing block 125 is smaller than the top diameter. As the sealing block 125 goes deeper into the valve core body 114, its diameter gradually decreases, so that it can better adapt to the shape and size changes of the through hole 126, reducing the risk of leakage caused by size mismatch. A third sealing groove matching the sealing disk 124 is provided at the top of the valve core body 114, and the sealing groove is connected to the through hole 126. A sealing gasket matching the sealing groove is fixedly installed at the bottom of the sealing block 125. The connecting design of the sealing groove and the through hole 126 ensures that the fluid will not bypass the sealing disk 124 and leak when passing through the through hole 126. This double sealing design not only improves the reliability of the seal, but also can extend the service life of the valve core body 114 and the sealing disk 124 to a certain extent.

[0029] See also Figure 4 The buffer assembly includes a spring 130 and a telescopic rod 131. A circular groove is provided at the bottom end of the support rod 122. The spring 130 is fixedly installed on the top of the inner wall of the circular groove. The top of the extrusion rod 123 is fixedly installed on the bottom end of the spring 130. The telescopic rod 131 is also fixedly installed on the top of the inner wall of the circular groove and the top of the extrusion rod 123. The spring 130 is sleeved on the outside of the telescopic rod 131.

[0030] In some specific implementation schemes, the telescopic rod 131 consists of a sleeve rod and a pull rod. The sleeve rod is fixedly installed on the top of the inner wall of the circular groove, and the bottom end of the sleeve rod is slidably sleeved on the pull rod. The bottom end of the pull rod is fixedly connected to the top of the extrusion rod 123, and a limit block is symmetrically fixedly installed on the top of the outer side of the pull rod. The inner wall of the sleeve rod is provided with a limit groove matching the limit block. The limit block is slidably connected to the inner wall of the limit groove, ensuring that the extrusion rod 123 can be accurately moved to the desired position. The coordinated use of the limit block and the limit groove limits the range of motion of the pull rod, preventing damage or failure caused by excessive extension or contraction.

[0031] Working principle: When the valve body 110 needs to be closed, the cylinder 120 is started to drive the sealing box 121 to move downward, the sealing box 121 moves downward to drive the support rod 122 to move downward, the support rod 122 moves downward to drive the extrusion rod 123 to move downward, the extrusion rod 123 moves downward to drive the sealing block 125 to move downward through the sealing disk 124 and insert it into the through hole 126, and the sealing disk 124 is inserted into the third sealing groove. At this time, the support rod 122 continues to move downward to squeeze the spring 130 and the bottom end fits with the third sealing groove.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An elastic compensation component for a valve core of a straight-stroke stop valve, comprising a valve body, characterized in that a water pipe is symmetrically fixedly installed on the outer side of the valve body, a first stop and a second stop are fixedly installed diagonally on the inner wall of the valve body, a valve core body is fixedly installed between the first stop and the second stop and separates the valve body into two areas, the top of the valve body is symmetrically fixedly installed, the output end of the cylinder is fixedly installed with a sealing box, the bottom end of the sealing box is open, a support rod is fixedly installed on the top of the inner wall of the sealing box, the bottom end of the support rod seals and slides through the top end of the valve body and slidably engages the extrusion rod, a buffer assembly is installed between the support rod and the extrusion rod, a sealing disk is fixedly installed on the bottom end of the extrusion rod, a sealing block is fixedly installed on the bottom end of the sealing disk, and a through hole is provided on the valve core body that matches the sealing block.

2. The elastic compensation component for the valve core of a linear stop valve according to claim 1, characterized in that: The output end of the cylinder is fixedly connected to the top end of the inner wall of the sealing box, and the cylinder is symmetrically arranged on both sides of the support rod.

3. The elastic compensation component for the valve core of a linear stop valve according to claim 1, characterized in that: The top of the valve body is provided with a first sealing groove matched with the bottom of the sealing box, a first sealing ring is fixedly installed on the outer side of the support rod, and the top of the valve body is provided with a second sealing groove matched with the first sealing ring.

4. The elastic compensation component for a linear stop valve core according to claim 1, characterized in that: A reinforcement block is fixedly installed on the outer side of the support rod, a sliding block is fixedly installed on one end of the reinforcement block, and a sliding groove matching the sliding block is provided on one side of the first stop block.

5. The elastic compensation component for the valve core of a linear stop valve according to claim 1, characterized in that: The sealing block is in the form of a truncated cone, and the diameter of the bottom end of the sealing block is smaller than the diameter of the top end.

6. The elastic compensation component for the valve core of a linear stop valve according to claim 1, characterized in that: A third sealing groove matching the sealing disk is provided at the top end of the valve core body, and the sealing groove is communicated with the through hole.

7. The elastic compensation component for a linear stop valve core according to claim 1, characterized in that: The buffer assembly includes a spring and a telescopic rod. A circular groove is provided at the bottom end of the support rod. The spring is fixedly installed on the top end of the inner wall of the circular groove. The top end of the spring is fixedly installed on the top end of the extrusion rod. The telescopic rod is also fixedly installed on the top end of the inner wall of the circular groove and the top end of the extrusion rod.

8. The elastic compensation component for the valve core of a linear stop valve according to claim 7, characterized in that: The telescopic rod consists of a sleeve rod and a pull rod. The sleeve rod is fixedly installed on the top of the inner wall of the circular groove, and the bottom end of the sleeve rod is slidably sleeved on the pull rod. The bottom end of the pull rod is fixedly connected to the top of the extrusion rod, and a limit block is symmetrically fixedly installed on the top outer side of the pull rod. The inner wall of the sleeve rod is provided with a limit groove matching the limit block.

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