Quick-mounting ball valve stem seal gland

Abstract

The utility model relates to ball valve device technical field discloses quick -wearing type ball valve stem seal gland, including valve body, the inside of valve body is provided with the flow mechanism, the top of flow mechanism is provided with the valve cover, the outside of valve cover is provided with sealing mechanism, the top of valve body is provided with the lock catch mechanism, the top of valve cover is provided with operating mechanism, operating mechanism is used for the inside of ball valve rotation, the inside top of valve body is provided with quick -wearing mechanism, quick -wearing mechanism is used for the capping of ball valve top, the top of valve cover is provided with rotating mechanism, quick -wearing mechanism includes compression tight cover, in the utility model, compression tight cover presses in the valve cover top and is fixed on the valve body, realizes firm installation, spring extrusion valve cover after being pressed, enhances sealing, and positioning pin inserts pin hole and installs positioning accurate, realizes effective quick dismounting through pulling out positioning pin, reduces maintenance difficulty and time cost.

Description

Technical Field

[0001] This utility model relates to the field of ball valve device technology, and in particular to a quick-install ball valve stem sealing gland. Background Technology

[0002] A ball valve is a type of valve that uses a ball as its opening and closing element. The ball rotates around the valve stem axis to open and close the valve. It has a simple structure, small size, rapid opening and closing, and low flow resistance. It is suitable for water, gas, and oil media and is used in chemical, petroleum, and municipal applications. It can effectively control the flow and cut-off of media in pipelines.

[0003] The core function of the ball valve stem sealing gland is to prevent media leakage. There is a gap between the valve stem and the valve body. The gland, through compression sealing, tightly fits the valve stem and the valve body, blocking the leakage of the medium in the pipeline along the valve stem gap. It can fix the sealing structure, withstand a certain pressure, and ensure the sealing performance and stability of the valve during opening and closing operations. It is a key component to ensure the safe operation of the ball valve.

[0004] During long-term use, the packing seal between the valve stem and valve body of a ball valve can age due to operational wear and media corrosion, leading to sealing performance failure and media leakage. In existing technologies, the integrated mechanical seal design effectively solves the problem of sealing performance failure by setting a dynamic ring and a stationary ring between the valve stem and the gland, using spring loading to make the ring surfaces fit together, and achieving sealing through a friction pair. However, in actual use, the ball valve stem sealing gland cannot be effectively and quickly disassembled when disassembly and maintenance are required, increasing the difficulty and time cost of maintenance. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick-install ball valve stem sealing gland, which aims to improve the problem that the ball valve stem sealing gland in the prior art cannot be effectively and quickly disassembled when it needs to be disassembled for maintenance, thus increasing the difficulty and time cost of maintenance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick-install ball valve stem sealing gland, comprising a valve body, a flow mechanism provided on the inner side of the valve body, a valve cover provided on the top of the flow mechanism, a sealing mechanism provided on the outer side of the valve cover, a locking mechanism provided on the top of the valve body, an operating mechanism provided on the top of the valve cover, the operating mechanism being used to rotate the inside of the ball valve, a quick-install mechanism provided on the top of the inner side of the valve body, the quick-install mechanism being used to seal the top of the ball valve, and a rotating mechanism provided on the top of the valve cover;

[0007] The quick-installation mechanism includes a pressure cover, the outer wall of which is fixedly connected to the top inner side of the valve body. A turntable is rotatably connected to the bottom inner side of the pressure cover. Multiple springs are fixedly connected to the bottom of the turntable. Multiple pin holes are opened on the top of the valve cover. A locking component is provided at the bottom of the turntable. An airtight component is provided on the outer side of the pressure cover.

[0008] As a further description of the above technical solution:

[0009] The operating mechanism includes a screw, the bottom of which is located at the top of the rotating mechanism. A threaded seat is threadedly connected to the top of the screw, and a handwheel is fixedly connected to the outer wall of the threaded seat. Multiple rubber pads are fixedly connected to the outer wall of the handwheel.

[0010] As a further description of the above technical solution:

[0011] The airtight component includes a rubber ring, the inner side of which is fixedly connected to the bottom outer side of the pressure cap, and a fixing groove is provided on the top inner side of the valve body.

[0012] As a further description of the above technical solution:

[0013] The locking component includes multiple positioning pins, the tops of which are fixedly connected to the bottom of the turntable, and pin points are slidably connected to the opposite sides of the multiple positioning pins.

[0014] As a further description of the above technical solution:

[0015] The locking mechanism includes multiple locking hooks, which are fixedly connected to the outer wall of the pressure cover. Multiple buckles are fixedly connected to the top of the valve body.

[0016] As a further description of the above technical solution:

[0017] The flow mechanism includes a valve core, the outer side of which is slidably connected to the inner side of the valve body, and a rotating block is fixedly connected to the bottom of the valve cover.

[0018] As a further description of the above technical solution:

[0019] The rotating mechanism includes a threaded rod, the bottom of which is threaded to the top of the valve cover, and a rotating rod is fixedly connected to the top of the threaded rod.

[0020] As a further description of the above technical solution:

[0021] The sealing mechanism includes a sealing ring, the inner side of which is fixedly connected to the top outer side of the valve cover, and a sealing groove is provided on the top inner side of the valve body.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the clamping cover presses on the top of the valve cover and is fixed on the valve body to achieve a stable installation. The turntable rotates with the valve cover and valve core to ensure synchronous rotation. The spring is compressed and squeezes the valve cover to enhance the seal. The positioning pin is inserted into the pin hole and the pin pops out to lock, ensuring accurate installation positioning. The rubber ring is attached between the clamping cover and the valve body. The fixing groove fixes the rubber ring to enhance the sealing performance. When the ball valve stem sealing cover needs to be disassembled for maintenance, it can be effectively and quickly disassembled by pulling out the positioning pin, reducing maintenance difficulty and time cost.

[0024] 2. In this utility model, the bottom of the screw is connected to a rotating mechanism to transmit rotational power. The threaded seat is threadedly connected to the top of the screw to achieve a stable connection. The handwheel is fixed to the outer wall of the threaded seat to facilitate personnel to rotate and control the ball valve. The rubber pad is fixed to the outer wall of the handwheel to increase the friction when turning, prevent slippage, ensure smooth and effective operation, and realize the opening and closing control of the valve core. Attached Figure Description

[0025] Figure 1 This is a perspective view of the quick-install ball valve stem sealing gland proposed in this utility model;

[0026] Figure 2 This is a split view of the valve cover in the valve stem sealing gland of the quick-install ball valve proposed in this utility model;

[0027] Figure 3 This is an exploded view of the operating mechanism in the valve stem sealing gland of the quick-install ball valve proposed in this utility model;

[0028] Figure 4 This is an exploded view of the quick-release mechanism in the quick-release ball valve stem sealing gland proposed in this utility model;

[0029] Figure 5 This is an exploded view of the locking mechanism in the valve stem sealing gland of the quick-install ball valve proposed in this utility model.

[0030] Legend:

[0031] 1. Valve body; 2. Valve cover; 3. Quick-release mechanism; 301. Compression cover; 302. Turntable; 303. Spring; 304. Pin hole; 305. Airtight component; 3051. Rubber ring; 3052. Fixing groove; 306. Locking component; 3061. Positioning pin; 3062. Pin point; 4. Operating mechanism; 401. Screw; 402. Threaded seat; 403. Handwheel; 404. Rubber pad; 5. Locking mechanism; 501. Locking hook; 502. Snap fastener; 6. Flow mechanism; 601. Valve core; 602. Rotating block; 7. Rotating mechanism; 701. Threaded rod; 702. Rotating rod; 8. Sealing mechanism; 801. Sealing ring; 802. Sealing groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] Reference Figure 1 , Figure 2 and Figure 4 An embodiment of this utility model provides a quick-install ball valve stem sealing cover, including a valve body 1, which carries the entire device. A flow mechanism 6 is provided on the inner side of the valve body 1, and a valve cover 2 is provided on the top of the flow mechanism 6. The valve cover 2 covers the bottom of the rotating mechanism 7 and rotates together with the rotating mechanism 7. A sealing mechanism 8 is provided on the outer side of the valve cover 2, which is used to seal between the valve cover 2 and the valve body 1. A locking mechanism 5 is provided on the top of the valve body 1, which is used to lock after the quick-install mechanism 3 is installed in place. An operating mechanism 4 is provided on the top of the valve cover 2, which is used to rotate the inside of the ball valve. A quick-install mechanism 3 is provided on the top of the inner side of the valve body 1, which is used to seal the top of the ball valve. A rotating mechanism 7 is provided on the top of the valve cover 2, which controls the water flow inside the ball valve.

[0034] The quick-installation mechanism 3 includes a clamping cover 301, which is pressed against the top of the valve cover 2. The outer wall of the clamping cover 301 is fixedly connected to the inner top of the valve body 1. A turntable 302 is rotatably connected to the bottom inner side of the clamping cover 301. The turntable 302 rotates at the bottom of the clamping cover 301, rotating together with the valve cover 2 and the valve core 601. Multiple springs 303 are fixedly connected to the bottom of the turntable 302. When the clamping cover 301 is pressed down, the springs 303 are compressed, squeezing the bottom of the valve cover 2, making the valve cover 2 fit tightly against the top of the valve core 601. Multiple pin holes 304 are opened on the top of the valve cover 2. When the clamping cover 301 is installed downwards, the positioning pins 3061 are inserted into the pin holes 304 to achieve positioning and fixation. A locking component 306 is provided at the bottom of the turntable 302 for locking. Component 306 includes multiple positioning pins 3061. When the positioning pins 3061 are inserted into the pin holes 304, the pin points 3062 pop out, thereby locking the positioning pins 3061. The tops of the multiple positioning pins 3061 are all fixedly connected to the bottom of the turntable 302. The pin points 3062 are slidably connected to the opposite sides of the multiple positioning pins 3061. An airtight component 305 is provided on the outside of the pressure cover 301. The airtight component 305 includes a rubber ring 3051. The rubber ring 3051 is fitted between the pressure cover 301 and the inner wall of the valve body 1. The inner side of the rubber ring 3051 is fixedly connected to the bottom of the outer side of the pressure cover 301. A fixing groove 3052 is provided on the top of the inner side of the valve body 1. The fixing groove 3052 is used to fix the rubber ring 3051 when the pressure cover 301 is installed in place.

[0035] Specifically, valve body 1 supports the entire device and provides the installation foundation. A flow mechanism 6 is provided on the inner side of valve body 1 for media flow. A valve cover 2 is provided on the top of the flow mechanism 6. The valve cover 2 covers the bottom rotating mechanism 7 and rotates with the rotating mechanism 7 to protect the rotating mechanism 7. A sealing mechanism 8 is provided on the outer side of valve cover 2 to seal between valve cover 2 and valve body 1 to prevent media leakage. A locking mechanism 5 is provided on the top of valve body 1 to lock after quick-installation mechanism 3 is installed in place to ensure that quick-installation mechanism 3 is stable. An operating mechanism 4 is provided on the top of valve cover 2 to rotate the inside of the ball valve to realize the opening and closing control of the ball valve. A quick-installation mechanism 3 is provided on the top of the inner side of valve body 1 to seal the top of the ball valve and realize quick installation and sealing. A rotating mechanism 7 is provided on the top of valve cover 2 to control the water flow inside the ball valve and regulate the media flow rate.

[0036] The quick-installation mechanism 3 includes a clamping cover 301, which is pressed against the top of the valve cover 2 to achieve clamping and fixing of the valve cover 2. The outer wall of the clamping cover 301 is fixedly connected to the top of the inner side of the valve body 1 to ensure the stable installation of the clamping cover 301. A turntable 302 is rotatably connected to the bottom inner side of the clamping cover 301. The turntable 302 rotates at the bottom of the clamping cover 301 and rotates together with the valve cover 2 and the valve core 601 to ensure the synchronicity of the rotation. Multiple springs 303 are fixedly connected to the bottom of the turntable 302. The springs 303 are compressed when the clamping cover 301 is pressed down, squeezing the bottom of the valve cover 2, so that the valve cover 2 and the top of the valve core 601 fit tightly together to enhance the sealing effect. Multiple pin holes 304 are opened on the top of the valve cover 2. When the clamping cover 301 is installed downward, the positioning pin 3061 is inserted into the pin hole 304 to achieve positioning and fixing, ensuring accurate installation position.

[0037] The locking component 306 enhances stability after installation. When the positioning pin 3061 is inserted into the pin hole 304, the pin point 3062 pops out, locking the positioning pin 3061 and preventing it from falling off. The tops of multiple positioning pins 3061 are fixedly connected to the bottom of the turntable 302 to ensure secure installation. Pin points 3062 are slidably connected to the opposite sides of the multiple positioning pins 3061, providing components for locking. An airtight component 305 is provided on the outer side of the pressure cover 301 to reinforce the pressure cover 301. The airtight assembly 305 includes a rubber ring 3051, which fits between the pressure cap 301 and the inner wall of the valve body 1 to enhance the sealing performance between them. The inner side of the rubber ring 3051 is fixedly connected to the outer bottom of the pressure cap 301 to ensure that the rubber ring 3051 is installed firmly. A fixing groove 3052 is provided on the inner top of the valve body 1. The fixing groove 3052 is used to fix the rubber ring 3051 when the pressure cap 301 is installed in place to prevent the rubber ring 3051 from shifting and affecting the seal.

[0038] Reference Figure 1 and Figure 3 The operating mechanism 4 includes a screw 401. The bottom of the screw 401 is located at the top of the rotating mechanism 7. A threaded seat 402 is threadedly connected to the top of the screw 401. The threaded seat 402 is screwed onto the top of the screw 401. A handwheel 403 is fixedly connected to the outer wall of the threaded seat 402. The handwheel 403 facilitates the operation of the ball valve. Multiple rubber pads 404 are fixedly connected to the outer wall of the handwheel 403. The rubber pads 404 will not slip when the handwheel 403 is turned.

[0039] Specifically, the bottom of the screw 401 is located at the top of the rotating mechanism 7 to transmit power for rotation. The top of the screw 401 is threadedly connected to a threaded seat 402, which is screwed onto the top of the screw 401 to achieve a stable connection. A handwheel 403 is fixedly connected to the outer wall of the threaded seat 402. The handwheel 403 facilitates the operation of the ball valve and allows for easy rotation control by personnel. Multiple rubber pads 404 are fixedly connected to the outer wall of the handwheel 403. The rubber pads 404 do not slip when the handwheel 403 is turned, thus increasing the friction during operation.

[0040] Reference Figure 1 , Figure 2 and Figure 5 The locking mechanism 5 includes multiple locking hooks 501, which are fixedly connected to the outer wall of the pressing cover 301. When the pressing cover 301 is pressed down, the locking hooks 501 hook the buckles 502 to lock the pressing cover 301. Multiple buckles 502 are fixedly connected to the top of the valve body 1. The flow mechanism 6 includes a valve core 601, which rotates inside the valve body 1 through the rotating mechanism 7. The outer side of the valve core 601 is slidably connected to the inner side of the valve body 1. A rotating block 602 is fixedly connected to the bottom of the valve cover 2. The rotating block 602 is engaged in the groove opened on the top of the valve core 601. When the rotating rod 702 rotates, it drives the valve cover 2 to rotate, and the rotating block 602 engages to drive the valve core 601 to rotate.

[0041] Specifically, multiple locking hooks 501 are fixedly connected to the outer wall of the pressure cover 301, providing a structural basis for locking the pressure cover 301. When the pressure cover 301 is pressed down, the locking hooks 501 hook onto the buckles 502, thereby locking the pressure cover 301 and ensuring its secure installation. Multiple buckles 502 are fixedly connected to the top of the valve body 1, which cooperate with the locking hooks 501 to achieve the locking function. The flow mechanism 6 includes a valve core 601, which rotates... Mechanism 7 rotates inside the valve body 1 to control the flow of the medium. The outer side of the valve core 601 is slidably connected to the inner side of the valve body 1 to ensure smooth rotation of the valve core 601. A rotating block 602 is fixedly connected to the bottom of the valve cover 2. The rotating block 602 is engaged in the groove opened on the top of the valve core 601 to transmit power for the rotation of the valve core 601. When the rotating rod 702 rotates, it drives the valve cover 2 to rotate. Through the engagement of the rotating block 602, it drives the valve core 601 to rotate, thereby realizing the opening and closing control of the ball valve.

[0042] Reference Figure 1 , Figure 3 and Figure 4The rotating mechanism 7 includes a threaded rod 701, the bottom of which is threadedly connected to the top of the valve cover 2. A rotating rod 702 is fixedly connected to the top of the threaded rod 701. The rotating rod 702 is screwed onto the top of the valve cover 2 through the threaded rod 701. The sealing mechanism 8 includes a sealing ring 801, which is placed between the valve cover 2 and the valve body 1 to form a second sealing protection. The inner side of the sealing ring 801 is fixedly connected to the top of the outer side of the valve cover 2. A sealing groove 802 is provided on the top of the inner side of the valve body 1 to hold the sealing ring 801.

[0043] Specifically, the bottom of the threaded rod 701 is threadedly connected to the top of the valve cover 2, achieving a stable connection with the valve cover 2. The top of the threaded rod 701 is fixedly connected to a rotating rod 702, which is screwed onto the top of the valve cover 2 via the threaded rod 701, providing an operating component for the rotation of the valve cover 2. The sealing mechanism 8 includes a sealing ring 801, which is placed between the valve cover 2 and the valve body 1 to form a second sealing protection, enhancing the sealing performance between the valve cover 2 and the valve body 1. The inner side of the sealing ring 801 is fixedly connected to the top of the outer side of the valve cover 2 to ensure the stable installation of the sealing ring 801. A sealing groove 802 is provided on the top of the inner side of the valve body 1 to hold the sealing ring 801, providing an installation position for the sealing ring 801 and ensuring the sealing effect.

[0044] Working principle: Install the valve core 601 of the flow mechanism 6 inside the valve body 1, so that the outer side of the valve core 601 is slidably connected to the inner side of the valve body 1. Then, engage the rotating block 602 at the bottom of the valve cover 2 into the groove at the top of the valve core 601. Then, install the sealing ring 801 of the sealing mechanism 8 on the top of the outer side of the valve cover 2 and embed the sealing ring 801 into the sealing groove 802 at the top of the inner side of the valve body 1 to form a preliminary seal.

[0045] Insert the clamping cover 301 from the top inside the valve body 1, so that the outer wall is fixed to the top inside the valve body 1. The turntable 302 at the bottom of the clamping cover 301 contacts the top of the valve cover 2. When the clamping cover 301 is pressed down, the spring 303 at the bottom of the turntable 302 is compressed, squeezing the valve cover 2 and the top of the valve core 601 tightly. At the same time, the positioning pin 3061 at the bottom of the turntable 302 is inserted into the pin hole 304 at the top of the valve cover 2. The pin 3062 pops out to lock the positioning pin 3061. The rubber ring 3051 on the outside of the clamping cover 301 is embedded in the fixing groove 3052 of the valve body 1 to enhance the sealing between the clamping cover 301 and the valve body 1. At this time, the locking hook 501 of the locking mechanism 5 hooks the buckle 502 at the top of the valve body 1 to complete the locking of the clamping cover 301.

[0046] A rotating mechanism 7 is installed on the top of the valve cover 2. The bottom of the threaded rod 701 is threaded to the top of the valve cover 2, so that the rotating rod 702 is fixed on the top of the threaded rod 701. Then, the bottom of the screw 401 of the operating mechanism 4 is connected to the top of the rotating rod 702. The threaded seat 402 is screwed on the top of the screw 401. The handwheel 403 is fixed by the threaded seat 402. The rubber pad 404 is located on the outer wall of the handwheel 403.

[0047] In use, turning the handwheel 403 drives the screw 401 to rotate via the threaded seat 402. The screw 401 drives the rotating rod 702 and the threaded rod 701 to rotate, thereby causing the valve cover 2 to rotate with the rotating mechanism 7. The valve cover 2 drives the valve core 601 to rotate inside the valve body 1 via the rotating block 602, thus realizing the opening and closing control of the ball valve.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-install ball valve stem sealing gland, comprising a valve body (1), characterized in that: The valve body (1) is provided with a flow mechanism (6) on the inner side, a valve cover (2) is provided on the top of the flow mechanism (6), a sealing mechanism (8) is provided on the outer side of the valve cover (2), a locking mechanism (5) is provided on the top of the valve body (1), an operating mechanism (4) is provided on the top of the valve cover (2), the operating mechanism (4) is used to rotate the inside of the ball valve, a quick-release mechanism (3) is provided on the top of the inner side of the valve body (1), the quick-release mechanism (3) is used to seal the top of the ball valve, and a rotating mechanism (7) is provided on the top of the valve cover (2). The quick-installation mechanism (3) includes a pressure cover (301), the outer wall of which is fixedly connected to the top inner side of the valve body (1), a turntable (302) is rotatably connected to the bottom inner side of the pressure cover (301), a plurality of springs (303) are fixedly connected to the bottom of the turntable (302), a plurality of pin holes (304) are opened on the top of the valve cover (2), a locking component (306) is provided at the bottom of the turntable (302), and an airtight component (305) is provided on the outer side of the pressure cover (301).

2. The quick-install ball valve stem sealing gland according to claim 1, characterized in that: The operating mechanism (4) includes a screw (401), the bottom of which is located on the top of the rotating mechanism (7). The top of the screw (401) is threadedly connected to a threaded seat (402), and a handwheel (403) is fixedly connected to the outer wall of the threaded seat (402). A plurality of rubber pads (404) are fixedly connected to the outer wall of the handwheel (403).

3. The quick-install ball valve stem sealing gland according to claim 1, characterized in that: The airtight component (305) includes a rubber ring (3051), the inner side of which is fixedly connected to the bottom outer side of the pressure cap (301), and a fixing groove (3052) is provided on the top inner side of the valve body (1).

4. The quick-install ball valve stem sealing gland according to claim 1, characterized in that: The locking component (306) includes a plurality of positioning pins (3061), the tops of which are fixedly connected to the bottom of the turntable (302), and pin points (3062) are slidably connected to the opposite sides of the plurality of positioning pins (3061).

5. The quick-install ball valve stem sealing gland according to claim 1, characterized in that: The locking mechanism (5) includes multiple locking hooks (501), and each of the multiple locking hooks (501) is fixedly connected to the outer wall of the pressure cover (301). The top of the valve body (1) is fixedly connected with multiple buckles (502).

6. The quick-install ball valve stem sealing gland according to claim 1, characterized in that: The flow mechanism (6) includes a valve core (601), the outer side of which is slidably connected to the inner side of the valve body (1), and a rotating block (602) is fixedly connected to the bottom of the valve cover (2).

7. The quick-install ball valve stem sealing gland according to claim 1, characterized in that: The rotating mechanism (7) includes a threaded rod (701), the bottom of which is threaded to the top of the valve cover (2), and a rotating rod (702) is fixedly connected to the top of the threaded rod (701).

8. The quick-install ball valve stem sealing gland according to claim 1, characterized in that: The sealing mechanism (8) includes a sealing ring (801), the inner side of which is fixedly connected to the top of the outer side of the valve cover (2), and a sealing groove (802) is provided on the top of the inner side of the valve body (1).

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