Ball valve with protection structure

Abstract

The utility model discloses a ball valve with protection structure, including ball valve main part, the import and export connection pipe is opened in ball valve main part, the ball valve main part is rotationally connected with ball valve stem body, ball valve stem body is with ball valve ball body screw connection, be provided with reinforcing protection mechanism on ball valve ball body, reinforcing protection mechanism carries out the clamping reinforcement to ball valve stem body, be provided with limit mechanism on reinforcing protection mechanism, reinforcing protection mechanism is connected with ball valve ball body through base, and carries out the clamping reinforcement with ball valve stem body, has improved the connecting strength between ball body and valve stem obviously, this design has reduced the risk that ball body and valve stem junction easily breaks because of the long valve stem, especially in the frequent switch operation.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a ball valve with a protective structure. Background Technology

[0002] A ball valve is a type of valve that evolved from a plug valve. Its opening and closing element is a ball, which rotates 90° around the axis of the valve stem to achieve the purpose of opening and closing.

[0003] The connection structure between the ball and the stem in existing ball valves is a critical part of the valve's normal operation. In practical applications, there is indeed a problem that the connection between the ball and the stem is prone to breakage due to the long stem. Because ball valves need to be opened and closed frequently, prolonged operation will cause the metal material at the connection between the ball and the stem to undergo continuous stress cycles. This cyclic stress will lead to fatigue damage and gradually weaken the strength of the connection. If the connection between the ball and the stem of the ball valve lacks an appropriate protective structure, it will not be able to effectively resist the influence of external environmental vibrations, which will accelerate the damage to the connection. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a ball valve with a protective structure. The reinforced protective mechanism is connected to the ball valve body through the base and is clamped and reinforced with the ball valve stem, which significantly improves the connection strength between the ball and the valve stem. This design reduces the risk of easy breakage at the connection between the ball and the valve stem due to the long valve stem, especially in frequent switching operations.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a ball valve with a protective structure, including a ball valve body, an inlet and outlet pipe opening inside the ball valve body, a ball valve stem rotatably connected to the ball valve body, the ball valve stem being threadedly connected to the ball valve ball, a reinforcing and protective mechanism being provided on the ball valve ball, the reinforcing and protective mechanism clamping and reinforcing the ball valve stem, and a limit mechanism being provided on the reinforcing and protective mechanism.

[0006] As a preferred technical solution of this utility model, the reinforcement and protection mechanism includes a base connected to the ball valve ball, a slide rail formed on the inner wall of the base, a slide groove formed on the inner wall of the slide rail, a slider slidably connected to the slide groove, a return spring set in the slide groove, a plug rod connected to the slider and inserted into the slide rail, and a plug groove formed on the inner wall of the ball valve stem.

[0007] As a preferred technical solution of this utility model, the slide rail is evenly provided in three sets around the base, and the plug rod is also inserted into three sets accordingly. A limit mechanism is connected to the outer wall of the base.

[0008] In a preferred embodiment of this utility model, one end of the reset spring is connected to the outer wall of the slider, and the other end of the reset spring is connected to the inner wall of the groove.

[0009] As a preferred technical solution of this utility model, the insertion groove is evenly arranged in three sets around the outer wall of the ball valve stem, and the diameter of each set of insertion grooves is set to be equal to the diameter of the insertion rod.

[0010] As a preferred technical solution of this utility model, the limiting mechanism includes a mounting cavity fixedly installed on the side wall of the base, a limiting rod slidably connected to the inner wall of the mounting cavity, and a limiting groove opened on the side wall of the plug-in rod.

[0011] As a preferred technical solution of this utility model, the limiting mechanism is evenly arranged in three sets around the outer wall of the base, and the diameter of the limiting rod in each set is equal to the diameter of the limiting groove.

[0012] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0013] 1. The reinforced protection mechanism is connected to the ball valve body through the base and clamped and reinforced with the ball valve stem, which significantly improves the connection strength between the ball and the valve stem. This design reduces the risk of easy breakage at the connection between the ball and the valve stem due to the long valve stem, especially in frequent switching operations.

[0014] 2. Due to the presence of the reinforced protective mechanism, the stress cycle experienced by the metal material at the connection between the ball and the valve stem is alleviated. This structural design helps to disperse and reduce stress concentration, thereby reducing fatigue damage and extending the service life of the ball valve.

[0015] 3. The protective structure design enables the ball valve's connection parts to effectively resist the vibration effects of the external environment. This protection not only reduces damage to the connection parts caused by vibration, but also improves the stability of the ball valve under harsh working conditions. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of a partial structure connecting the ball valve stem and the ball valve ball of this utility model.

[0019] Figure 4 This is an exploded view of a partial structure connecting the ball valve stem and the ball valve ball of this utility model.

[0020] Figure 5 This is a side sectional view of the reinforcement and protection mechanism and the limiting mechanism of this utility model.

[0021] The components are labeled as follows: 1. Ball valve body; 2. Inlet / outlet connector; 3. Ball valve stem; 4. Ball valve ball; 5. Reinforcement and protection mechanism; 51. Base; 52. Slide rail; 53. Slide groove; 54. Slider; 55. Return spring; 56. Insert rod; 57. Insert groove; 6. Limiting mechanism; 61. Mounting cavity; 62. Limiting rod; 63. Limiting groove. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0023] Example:

[0024] like Figure 1-5 As shown, a ball valve with a protective structure includes a ball valve body 1, an inlet and outlet pipe 2 inside the ball valve body 1, a ball valve stem 3 rotatably connected to the ball valve body 1, the ball valve stem 3 being threadedly connected to the ball valve ball 4, a reinforcing and protective mechanism 5 being provided on the ball valve ball 4, the reinforcing and protective mechanism 5 clamping and reinforcing the ball valve stem 3, and a limit mechanism 6 being provided on the reinforcing and protective mechanism 5;

[0025] The reinforcement and protection mechanism 5 includes a base 51 connected to the ball valve ball 4, a slide rail 52 opened on the inner wall of the base 51, a slide groove 53 opened on the inner wall of the slide rail 52, a slider 54 slidably connected to the slide groove 53, a return spring 55 provided in the slide groove 53, a plug rod 56 connected to the slider 54 and inserted into the slide rail 52, and a plug groove 57 opened on the inner wall of the ball valve stem 3. The limiting mechanism 6 includes an installation cavity 61 fixedly installed on the side wall of the base 51, a limiting rod 62 slidably connected to the inner wall of the installation cavity 61, and a limiting groove 63 opened on the side wall of the plug rod 56.

[0026] When the operator needs to connect the ball valve ball 4 to the ball valve stem 3 via threaded rotation, the three sets of insertion rods 56 need to be pulled outwards, causing the insertion rods 56 to slide outwards within the slide rail 52. The insertion rods 56 slide outwards within the slider 54 via the slide groove 53. During this sliding process, the return spring 55 is compressed and deformed until all the insertion rods 56 have slid outwards to their outermost ends. At this point, the limiting groove 63 moves to the position of the limiting rod 62. The operator then slides the limiting rod 62, causing it to slide within the mounting cavity 61. Finally, the limiting rod 62 engages with the limiting... The insertion groove 63 forms a limit, at which point rotating the ball valve ball 4 drives the base 51 to rotate. Other components will not affect the direct threaded connection between the ball valve ball 4 and the ball valve stem 3. After the ball valve ball 4 and the ball valve stem 3 are connected, the limit rod 62 is pulled outward to release the limit on the insertion rod 56. At this time, the restoring force generated by the elasticity of the return spring 55 pushes the insertion rod 56 to return to its original position. The insertion rod 56 finally inserts into the insertion groove 57 in the ball valve stem 3 to form a fixed connection, which strengthens the connection between the ball valve ball 4 and the ball valve stem 3 and enhances the protection performance.

[0027] It is worth noting that the slide rail 52 is evenly distributed in three sets around the base 51, and the plug rod 56 is also plugged in in three sets accordingly. This design provides three-point support and fixation, which increases the stability and uniformity of the connection between the ball valve ball 4 and the valve stem body 3. The three-point fixation can ensure that the ball valve ball 4 is more stable during rotation, and reduce wear and damage caused by uneven force at a single point. The outer wall of the base 51 is connected to the limit mechanism 6.

[0028] One end of the return spring 55 is connected to the outer wall of the slider 54, and the other end of the return spring 55 is connected to the inner wall of the slide groove 53. The design of the return spring 55 ensures that the plug rod 56 can automatically return to the initial position after operation. When the plug rod 56 is pulled out, the return spring 55 is compressed; once released, the elastic force of the return spring 55 will push the plug rod 56 back to its original position.

[0029] Three sets of insertion slots 57 are evenly arranged around the outer wall of the ball valve stem 3. The diameter of each set of insertion slots 57 is equal to the diameter of the insertion rod 56. The matching design of the insertion slots 57 and the insertion rod 56 ensures the tightness and firmness of the connection, ensuring that there will be no loosening after the ball valve ball 4 and the ball valve stem 3 are connected.

[0030] Three sets of limiting mechanisms 6 are evenly arranged around the outer wall of the base 51. The diameter of the limiting rod 62 in each set is equal to the diameter of the limiting groove 63. The limiting mechanism 6 is set to limit the movement range of the plug rod 56 when the ball valve ball 4 and the ball valve rod 3 are connected, so as to prevent excessive movement and damage.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A ball valve with a protective structure, comprising a ball valve body (1), characterized in that: The ball valve body (1) is provided with an inlet and outlet pipe (2). A ball valve stem (3) is rotatably connected to the ball valve body (1). The ball valve stem (3) is threadedly connected to the ball valve ball (4). A reinforcement and protection mechanism (5) is provided on the ball valve ball (4). The reinforcement and protection mechanism (5) clamps and reinforces the ball valve stem (3). A limit mechanism (6) is provided on the reinforcement and protection mechanism (5).

2. A ball valve with a protective structure according to claim 1, characterized in that: The reinforcement and protection mechanism (5) includes a base (51) connected to the ball valve ball (4), a slide rail (52) opened on the inner wall of the base (51), a slide groove (53) opened on the inner wall of the slide rail (52), a slider (54) slidably connected to the slide groove (53), a return spring (55) set in the slide groove (53), a plug rod (56) connected to the slider (54) and inserted into the slide rail (52), and a plug groove (57) opened on the inner wall of the ball valve stem (3).

3. A ball valve with a protective structure according to claim 2, characterized in that: The slide rail (52) is evenly distributed in three sets around the base (51), and the plug rod (56) is also inserted into three sets accordingly. The outer wall of the base (51) is connected to a limit mechanism (6).

4. A ball valve with a protective structure according to claim 2, characterized in that: One end of the reset spring (55) is connected to the outer wall of the slider (54), and the other end of the reset spring (55) is connected to the inner wall of the groove (53).

5. A ball valve with a protective structure according to claim 2, characterized in that: The insertion slots (57) are evenly arranged in three groups around the outer wall of the ball valve stem (3), and the diameter of each insertion slot (57) is equal to the diameter of the insertion rod (56).

6. A ball valve with a protective structure according to claim 2, characterized in that: The limiting mechanism (6) includes an installation cavity (61) fixedly installed on the side wall of the base (51), a limiting rod (62) slidably connected to the inner wall of the installation cavity (61), and a limiting groove (63) opened on the side wall of the plug rod (56).

7. A ball valve with a protective structure according to claim 6, characterized in that: The limiting mechanism (6) is evenly arranged in three sets around the outer wall of the base (51), and the diameter of the limiting rod (62) in each set is equal to the diameter of the limiting groove (63).

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