Valve joint with anti-falling structure

Abstract

The utility model relates to the technical field of valve joints, in particular to a valve joint with an anti-falling structure, which comprises a valve main body and a pipeline, first flanges are arranged at two ends of the valve main body, and a second flange is arranged at the connecting end of the pipeline. According to the valve connector with the anti-disengaging structure, through cooperative use of the valve body, the pipeline, the first flange, the second flange, the arc-shaped limiting clamping plate, the sealing hoop, an upper fixing block, a lower fixing block, a pull ring, a fixing hole, a sliding block, a clamping block, a sliding rod, a spring, a sliding groove, a locking groove, a locking block and a limiting groove, in the sealing hoop installation state, the sealing hoop can be clamped in the arc-shaped limiting clamping plate; the arc-shaped limiting clamping plate can limit the connecting position of the first flange and the second flange, so that the first flange and the second flange are tightly attached under the action of the arc-shaped limiting clamping plate and are matched with fixation of bolts on the first flange and the second flange, the double-fixing effect is achieved, even if one fixing mode is lost, the valve body and the pipeline can still be stably connected, and effective disengagement prevention is achieved.

Description

Technical Field

[0001] This utility model relates to the field of valve connector technology, specifically a valve connector with an anti-detachment structure. Background Technology

[0002] In modern pipeline systems, valves are increasingly widely used and play a crucial role. As a pipeline accessory, valves are mainly used to open and close pipelines, control the flow direction of media, and regulate and control various parameters of the transported media. Depending on their function, valves can be divided into various types such as shut-off valves, check valves, and regulating valves. In traditional pipeline connections, valves and pipelines are usually fixed using flanges and bolts. To ensure a tight seal, a sealing ring is added at the connection point.

[0003] While traditional valve-to-pipe connections can meet basic pipeline connection requirements, some drawbacks have gradually emerged over prolonged use. The bolts on the flanges at the valve-to-pipe connection can loosen due to factors such as vibrations during pipeline operation and pressure fluctuations caused by media flow. Once the bolts loosen, the sealing rings, which rely on the bolt tightening force for a tight seal, struggle to maintain a proper seal at the valve-to-pipe connection. This significantly reduces the sealing performance at the valve-to-pipe connection, making media leakage highly likely and increasing the maintenance costs of the pipeline system.

[0004] Therefore, it is necessary to provide a valve connector with an anti-detachment structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a valve connector with an anti-detachment structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A valve connector with an anti-detachment structure, comprising:

[0008] The valve body and the pipeline are provided with a first flange at both ends of the valve body and a second flange at the connection end of the pipeline. A sealing hoop is provided on the outside of the connection between the first flange and the second flange. The sealing hoop is composed of two arc-shaped metal plates and a hinge is provided at the rear end connection of the sealing hoop.

[0009] An upper fixing block is fixedly installed above the front end connection of the sealing band, and a lower fixing block is fixedly installed below the front end connection of the sealing band. A locking mechanism is provided on the lower fixing block. A groove is opened on the inner surface of the sealing band, and symmetrically distributed arc-shaped limiting plates are fixedly installed inside the groove on the inner surface of the sealing band.

[0010] Preferably, a plurality of positioning posts are welded on the side of the first flange near the second flange, and a positioning groove corresponding to the position and number of the positioning posts is opened on the side of the second flange near the first flange, and the positioning groove is engaged with the positioning posts.

[0011] Preferably, the locking mechanism includes a locking groove, which is located at the top of the lower fixing block. A locking block is fixedly installed at the bottom of the upper fixing block and engages with the locking groove. A fixing hole is provided on the front of the lower fixing block, and a sliding groove is provided at the bottom of the inner wall of the fixing hole. A sliding rod is fixedly installed inside the sliding groove, and a slider is sleeved on the outer wall of the sliding rod and slidably installed on the sliding groove. A spring is sleeved on the outer wall of the sliding rod in front of the slider. A locking block is fixedly installed at the top of the slider and slidably installed on the fixing hole. A limiting groove is provided on the front of the locking block and engages with the locking block. A pull ring is fixedly installed at the front end of the locking block.

[0012] Preferably, the locking block is in the shape of an arc plate, and the origin of the locking block is consistent with the rear hinge point of the sealing hoop. The rear end of the locking block is inclined, and the locking block is adapted to the limiting groove.

[0013] Preferably, the slider has a sliding hole adapted to the slide rod, and the slider is slidably connected to the slide rod through the sliding hole.

[0014] Preferably, the inner surface of the arc-shaped limiting plate is provided with an anti-detachment groove, and the arc-shaped limiting plate is engaged with the outer surface of the connection between the first flange and the second flange through the anti-detachment groove on its inner surface.

[0015] Preferably, the inner diameter of the sealing clamp is adapted to the outer diameter of the valve body and the pipe, and a sealing gasket is provided at the connection between the sealing clamp and the valve body and the pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model utilizes the combined use of a valve body, pipeline, first flange, second flange, arc-shaped limiting plate, sealing clamp, upper fixing block, lower fixing block, pull ring, fixing hole, slider, locking block, sliding rod, spring, sliding groove, locking groove, locking block, and limiting groove. When the sealing clamp is installed, the arc-shaped limiting plate limits the connection between the first and second flanges, ensuring a tight fit. Combined with the bolts on the first and second flanges, this provides dual fixing, ensuring a stable connection between the valve body and pipeline even if one fixing method is lost, effectively preventing detachment. Furthermore, the sealing clamp completely seals and encloses the connection between the valve body and pipeline, preventing direct exposure to the external environment and effectively protecting the valve body joint, thus improving the stability and reliability of the connection and demonstrating strong practicality.

[0018] 2. This utility model utilizes the combined use of a positioning pin and a positioning groove. During valve body installation, the valve body is placed between the connection ends of two pipes, and then the positioning pin on the first flange engages with the positioning groove on the second flange, thus initially positioning the valve body. The engaging engagement of the positioning pin and positioning groove significantly enhances the firmness of the connection between the valve body and the pipes; furthermore, it allows for quick and precise alignment of the first and second flanges, greatly facilitating subsequent installation operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a frontal sectional view of the present invention.

[0021] Figure 3 This is a side view of the sealing hoop in this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Valve body; 2. Pipeline; 3. First flange; 4. Second flange; 5. Arc-shaped limiting plate; 6. Sealing clamp; 7. Upper fixing block; 8. Lower fixing block; 9. Pull ring; 10. Fixing hole; 11. Sliding block; 12. Locking block; 13. Sliding rod; 14. Spring; 15. Sliding groove; 16. Locking groove; 17. Locking block; 18. Limiting groove; 19. Positioning pin; 20. Positioning groove. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5 One embodiment provided by this utility model:

[0030] A valve connector with an anti-detachment structure, comprising:

[0031] The valve body 1 and the pipeline 2 are provided with a first flange 3 at both ends of the valve body 1 and a second flange 4 at the connection end of the pipeline 2. A sealing hoop 6 is provided on the outside of the connection between the first flange 3 and the second flange 4. The sealing hoop 6 is composed of two arc-shaped metal plates and a hinge is provided at the connection of the rear end of the sealing hoop 6.

[0032] An upper fixing block 7 is fixedly installed above the front end connection of the sealing band 6, and a lower fixing block 8 is fixedly installed below the front end connection of the sealing band 6. A locking mechanism is provided on the lower fixing block 8. A groove is opened on the inner surface of the sealing band 6, and symmetrically distributed arc-shaped limiting plates 5 are fixedly installed inside the groove on the inner surface of the sealing band 6.

[0033] A number of positioning posts 19 are welded on the side of the first flange 3 near the second flange 4. The side of the second flange 4 near the first flange 3 is provided with positioning grooves 20 corresponding to the position and number of positioning posts 19, and the positioning grooves 20 are engaged with the positioning posts 19.

[0034] In one embodiment, the locking mechanism includes a locking groove 16, which is located at the top of the lower fixing block 8. A locking block 17 is fixedly installed at the bottom of the upper fixing block 7 and engages with the locking groove 16. A fixing hole 10 is provided on the front of the lower fixing block 8. A sliding groove 15 is provided at the bottom of the inner wall of the fixing hole 10. A sliding rod 13 is fixedly installed inside the sliding groove 15. A slider 11 is sleeved on the outer wall of the sliding rod 13 and slides on the sliding groove 15. A spring 14 is sleeved on the outer wall of the sliding rod 13 in front of the slider 11. A locking block 12 is fixedly installed on the top of the slider 11 and slides on the fixing hole 10. A limiting groove 18 is provided on the front of the locking block 17 and engages with the locking block 12. A pull ring 9 is fixedly installed at the front end of the locking block 12. The sealing band 6 can be installed and removed without any auxiliary tools, which improves the convenience of using the sealing band 6.

[0035] In one preferred embodiment, the locking block 17 is in the shape of an arc plate, and the origin of the locking block 17 is consistent with the rear hinge point of the sealing band 6, ensuring that the locking block 17 and the locking groove 16 are stably engaged. The rear end of the locking block 12 is inclined, and the locking block 12 is adapted to the limiting groove 18, realizing the quick closing operation of the sealing band 6.

[0036] In one embodiment, the slider 11 has a sliding hole adapted to the slider 13, and the slider 11 is slidably connected to the slider 13 through the sliding hole.

[0037] In one preferred embodiment, an anti-detachment groove is provided on the inner surface of the arc-shaped limiting plate 5, and the arc-shaped limiting plate 5 is engaged with the outer surface of the connection between the first flange 3 and the second flange 4 through the anti-detachment groove on its inner surface. The anti-detachment groove provides precise positioning for the engagement, making the first flange 3 and the second flange 4 fit more tightly, which helps to maintain the sealing performance of the connection and reduce the risk of media leakage.

[0038] In one embodiment, the inner diameter of the sealing clamp 6 is adapted to the outer diameter of the valve body 1 and the pipe 2, and a sealing gasket is provided at the connection between the sealing clamp 6 and the valve body 1 and the pipe 2 to enhance the sealing effect and better protect the connection between the valve body 1 and the pipe 2.

[0039] The working principle of this utility model is as follows: All parts not mentioned in this device are the same as or can be implemented using existing technology. When connecting the valve body 1 and the pipe 2, first place the valve body 1 directly between the connecting ends of the two pipes 2, aligning the first flange 3 on the valve body 1 with the second flange 4 on the pipe 2, and secure them with bolts. Next, take two unfolded sealing clamps 6 and directly place them on the outside of the first flange 3 and the second flange 4 at the connection between the valve body 1 and the pipe 2. When installing the sealing clamps 6, the arc-shaped limiting plate 5 located inside them will directly engage with the outer surfaces of the first flange 3 and the second flange 4. Then, close the upper fixing block 7 and the lower fixing block 8 at the front end of the sealing clamp 6. During this process, the locking block 17 at the bottom of the upper fixing block 7 will engage with the locking groove 16 at the top of the lower fixing block 8. When the locking block 17 engages, it will contact the inclined end of the locking block 12, pushing the locking block 12 to slide into the fixing hole 10. The movement of the locking block 12 causes the slider 11 to slide on the outer wall of the slide rod 13 and compress the spring 14. As the locking block 12 moves into the fixing hole 10, the locking block 17 fully engages with the locking groove 16, and the sealing clamp 6 closes. At this time, the locking block 12, under the elastic action of the spring 14, engages with the limiting groove 18 on the locking block 17, firmly locking the locking block 17 onto the locking groove 16, so that the sealing clamp 6 is firmly engaged at the connection between the valve body 1 and the pipe 2. In the installed state, the arc-shaped limiting plate 5 will further limit the first flange 3 and the second flange 4, so that they fit tightly under the action of the arc-shaped limiting plate 5. Together with the fixing of the bolts on the first flange 3 and the second flange 4, it plays a double fixing role. Even if one fixing method is lost, the valve body 1 and the pipe 2 can still be stably connected, achieving effective anti-detachment. In addition, the sealing clamp 6 will completely seal and wrap the connection between the valve body 1 and the pipe 2, preventing it from being directly exposed to the external environment, effectively protecting the joint of the valve body 1, improving the stability and reliability of the connection, and making it highly practical. When the sealing clamp 6 needs to be removed, pull the pull ring 9 to disengage the locking block 12 from the locking block 17, allowing the sealing clamp 6 to be unfolded and removed from the connection between the valve body 1 and the pipeline 2. Therefore, the installation and fixing method of the sealing clamp 6 is simple and does not affect the efficiency of the connection and disassembly between the valve body 1 and the pipeline 2.

[0040] When installing the valve body 1, it is placed between the connecting ends of the two pipes 2. Then, the positioning pin 19 on the first flange 3 and the positioning groove 20 on the second flange 4 are engaged to initially position the valve body 1. The engagement of the positioning pin 19 and the positioning groove 20 significantly enhances the stability of the connection between the valve body 1 and the pipe 2. Furthermore, it allows for quick and precise alignment of the first flange 3 and the second flange 4, greatly facilitating subsequent installation operations.

[0041] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve joint having a detachment preventing structure, characterized by comprising: It includes: The valve body (1) is provided with first flange (3) at both ends, the connecting end of pipeline (2) is provided with second flange (4), the outside of the joint of first flange (3) and second flange (4) is provided with sealing hoop (6), sealing hoop (6) is composed of two arc metal plates, the rear end connecting portion of sealing hoop (6) is provided with hinge; The upper fixed block (7) is fixedly installed above the front end connecting portion of sealing hoop (6), the lower fixed block (8) is fixedly installed below the front end connecting portion of sealing hoop (6), the locking mechanism is arranged on the upper surface of lower fixed block (8), the recess is formed in the inner surface of sealing hoop (6), and the arc-shaped limiting clamping plate (5) is fixedly installed in the recess of the inner surface of sealing hoop (6).

2. The valve joint with anti-dropping structure according to claim 1, characterized in that: A plurality of positioning columns (19) are welded on one side of the first flange (3) close to the second flange (4), a plurality of positioning grooves (20) corresponding in position and number to the positioning columns (19) are formed in one side of the second flange (4) close to the first flange (3), and the positioning grooves (20) are in clamping connection with the positioning columns (19).

3. The valve joint with anti-dropping structure according to claim 1, characterized in that: The locking mechanism comprises a locking groove (16), and the locking groove (16) is formed in the top of the lower fixed block (8), the bottom of the upper fixed block (7) is fixedly provided with a locking block (17), the locking block (17) is in clamping connection with the locking groove (16), a fixing hole (10) is formed in the front surface of the lower fixed block (8), a sliding groove (15) is formed in the bottom of the inner wall of the fixing hole (10), a sliding rod (13) is fixedly installed in the sliding groove (15), a sliding block (11) is sleeved on the outer wall of the sliding rod (13), the sliding block (11) is slidingly installed in the sliding groove (15), a spring (14) is sleeved on the front side of the sliding rod (13), a clamping block (12) is fixedly installed on the top of the sliding block (11), the clamping block (12) is slidingly installed in the fixing hole (10), a limiting groove (18) is formed in the front surface of the locking block (17), and the limiting groove (18) is in clamping connection with the clamping block (12), and a pull ring (9) is fixedly installed on the front end of the clamping block (12).

4. The valve joint with anti-dropping structure according to claim 3, characterized in that: The locking block (17) is in the shape of an arc-shaped plate, the origin of the locking block (17) is consistent with the rear end hinge point of the sealing hoop (6), and the rear end of the clamping block (12) is in the shape of an inclination, and the clamping block (12) is matched with the limiting groove (18).

5. The valve joint with anti-dropping structure according to claim 3, characterized in that: A sliding hole matched with the sliding rod (13) is formed in the sliding block (11), and the sliding block (11) is in sliding connection with the sliding rod (13) through the sliding hole.

6. The valve joint with anti-dropping structure according to claim 1, characterized in that: A anti-falling groove is formed in the inner surface of the arc-shaped limiting clamping plate (5), and the arc-shaped limiting clamping plate (5) is clamped on the outer surface of the joint of the first flange (3) and the second flange (4) through the anti-falling groove.

7. The valve joint with anti-dropping structure according to claim 1, characterized in that: The inner diameter of the sealing hoop (6) is matched with the outer diameter of the valve body (1) and the pipeline (2), and sealing pads are arranged at the joints of the sealing hoop (6), the valve body (1) and the pipeline (2).

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