Diaphragm valve
By designing a pinned diaphragm valve, the traditional locked diaphragm valve has solved the problem of complex structure and high maintenance cost, low-cost and safe valve operation is achieved, and safety risks caused by lock failure are avoided.
Patent Information
- Application Number
- CN202422301735.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The traditional locked diaphragm valve has a complex structure design and high price, and requires regular maintenance. Loss of keys or rust and failure of password locks can easily lead to safety accidents. Forcibly disassembled may lead to scrapping or failure of the valve.
The diaphragm valve design adopts a simple structure, and the valve switch is realized through the pin, which avoids the use of traditional mechanical locks. The pin is connected by knobs and wire ropes to achieve the anti-stupidity and anti-loosening function of the valve.
It realizes simple operation and low-cost maintenance of the valve, avoids safety accidents caused by key loss or lock failure, and ensures the normal operation of the valve.
Smart Images
Figure CN223063214U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diaphragm valves, and more specifically, the utility model relates to a diaphragm valve. Background Art
[0002] In the actual use of manual lockable diaphragm valves in factory workshops, as a key component for controlling fluid flow, it plays a crucial role.
[0003] The structural design of traditional lockable diaphragm valves is to use traditional mechanical locks, which are relatively expensive and require regular maintenance to ensure the normal operation of the lock device. Once the key is lost or the password lock rusts and fails, it will lead to very serious safety accidents. Forcibly disassembling will pose a risk of scrapping or invalidation of the diaphragm valve. To avoid the above risks, a diaphragm valve is now proposed, which has a simple structure, low manufacturing cost, convenient operation, and can realize the opening and closing of the valve by simply inserting or pulling out a bolt. Summary of the Utility Model
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a diaphragm valve to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: a diaphragm valve, including a valve seat, a valve pipe is connected to the top of the valve seat, a lower locking sleeve connected to the valve seat is sleeved on the valve pipe, a valve port member is installed inside the valve seat, a sealing gasket is arranged at the top of the valve port member, a diaphragm is arranged at the top of the sealing gasket, a valve plug is slidably arranged in the valve pipe at the top of the diaphragm, a ball plug is press-connected to the top of the valve plug, a valve rod press-connected to the top of the ball plug is screwed to the valve pipe, an upper locking sleeve connected to the valve pipe is sleeved on the valve rod, a knob is installed at the top of the valve rod, a handle is installed on the knob, a collar is slidably sleeved on the valve pipe, a steel wire rope is connected to the collar, the steel wire rope is connected to a bolt, and the bolt passes through the knob and is inserted into the upper locking sleeve.
[0006] Preferably, a through hole is opened on the knob, and a plurality of slots are opened on the upper locking sleeve.
[0007] Preferably, a groove is opened at the bottom end inside the valve seat, the valve port member is arranged in the middle of the groove, an annular drainage groove is formed on the outer side of the valve port member, two through ports are opened in the drainage groove, each through port is communicated with a water outlet, and the hollow part of the valve port member is connected to a water inlet.
[0008] Preferably, a rubber sleeve is sleeved on the steel wire rope.
[0009] Preferably, an annular groove is opened on the inner wall of the top of the valve pipe, a sealing ring is installed in the annular groove, and the top of the sealing ring is pressed and fixed by the upper locking sleeve.
[0010] Technical effects and advantages of the present utility model:
[0011] The present utility model has the advantages of a diaphragm valve with a simple structure, low manufacturing cost, convenient operation, and the ability to open and close the valve simply by inserting or pulling out a bolt. Description of the drawings
[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0013] Figure 2 It is a schematic diagram of the sectional structure of the present utility model.
[0014] Figure 3 It is a schematic diagram of the structure of the valve seat of the present utility model.
[0015] Figure 4 For the present utility model Figure 2 Schematic diagram of the partial enlarged structure at position A.
[0016] The reference numerals in the drawings are: 1, valve seat; 2, valve pipe; 3, lower locking sleeve; 4, upper locking sleeve; 5, knob; 6, collar; 7, steel wire rope; 8, bolt; 9, handle; 10, water inlet; 11, water outlet; 12, valve stem; 13, ball plug; 14, valve plug; 15, valve port part; 16, through port; 17, gasket; 18, diaphragm. Detailed implementation manners
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] As shown in the attached Figures 1-4 A diaphragm valve shown in the figure includes a valve seat 1. A valve pipe 2 is connected to the top of the valve seat 1. A lower locking sleeve 3 connected to the valve seat 1 is sleeved on the valve pipe 2. A valve port part 15 is installed inside the valve seat 1. A gasket 17 is arranged at the top of the valve port part 15. A diaphragm 18 is arranged at the top of the gasket 17. A valve plug 14 is slidably arranged in the valve pipe 2 at the top of the diaphragm 18. A ball plug 13 is press-fitted at the top of the valve plug 14. A valve stem 12 screwed to the valve pipe 2 is press-fitted at the top of the ball plug 13. An upper locking sleeve 4 connected to the valve pipe 2 is sleeved on the valve stem 12. A knob 5 is installed at the top of the valve stem 12. A handle 9 is installed on the knob 5. A collar 6 is slidably sleeved on the valve pipe 2. A steel wire rope 7 is connected to the collar 6. A bolt 8 is connected to the steel wire rope 7. The bolt 8 passes through the knob 5 and is inserted into the upper locking sleeve 4.
[0019] During specific implementation, the valve stem 12 is rotated by turning the knob 5 or the handle 9. Under the spiral fit of the valve tube 2, the valve stem 12 can move up and down within the valve tube 2. When the valve stem 12 descends, it presses down on the ball plug 13, and the ball plug 13 presses down on the bottom valve plug 14. The valve plug 14 presses on the diaphragm 18, causing the gasket 17 to seal the valve port part 15, thereby closing the diaphragm valve. Conversely, rotating the knob 5 or the handle 9 in the reverse direction can, after the diaphragm 18 rebounds and arches, loosen the gasket 17 and open the diaphragm valve. When it is necessary to lock the opening and closing of the diaphragm valve, by passing the bolt 8 through the knob 5 and inserting it into the upper locking sleeve 4, the rotation of the knob 5 can be restricted, so that it can easily lock the opening and closing of the diaphragm valve, thus eliminating the need to additionally install a locking device for the knob 5 and avoiding safety accidents caused by the loss of the key or damage to the password lock and the inability to open or close the diaphragm valve in time. This shows that through the pin-type diaphragm valve, it not only meets the anti-fooling and anti-loosening requirements but also satisfies the principle of the traditional locked diaphragm valve. This structure is simple to operate and has a low cost. The anti-fooling and anti-loosening function of the valve can be achieved only by inserting or pulling out the bolt 8.
[0020] A through hole is provided in the knob 5, and a plurality of slots are provided in the upper locking sleeve 4.
[0021] During specific implementation, when the diaphragm valve is open and it is necessary to lock the opening of the diaphragm valve, by passing the bolt 8 through the through hole, the bottom of the bolt 8 is inserted into the slot at the corresponding open position, and the open state of the diaphragm valve can be locked. When it is necessary to lock the closed state of the diaphragm valve, after the knob 5 is rotated to the locking position, the through hole and the slot at the locking position provided on the upper locking sleeve 4 are correspondingly matched, and the bolt 8 can be directly inserted to complete the locking, which is simple and fast to operate.
[0022] A groove is provided at the inner bottom end of the valve seat 1, the valve port part 15 is arranged in the middle of the groove, an annular drainage groove is formed outside the valve port part 15, two through ports 16 are provided in the drainage groove, each through port 16 is communicated with a water outlet 11, and the hollow part of the valve port part 15 is connected with the water inlet 10.
[0023] A rubber sleeve is sleeved on the steel wire rope 7 to facilitate the protection of the steel wire rope 7 and reduce the rusting process.
[0024] An annular groove is provided on the inner wall of the top of the valve tube 2, a sealing ring is installed in the annular groove, and the top of the sealing ring is pressed and fixed by the upper locking sleeve 4 to facilitate improving the sealing performance of the valve tube 2.
[0025] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A diaphragm valve, comprising a valve seat (1), characterized in that: A valve tube (2) is connected to the top end of the valve seat (1). A lower locking sleeve (3) connected to the valve seat (1) is sleeved on the valve tube (2). A valve port member (15) is installed inside the valve seat (1). A sealing gasket (17) is arranged at the top end of the valve port member (15). A diaphragm (18) is arranged at the top end of the sealing gasket (17). A valve plug (14) is slidably arranged in the valve tube (2) at the top end of the diaphragm (18). A ball plug (13) is press-fitted at the top end of the valve plug (14). A valve rod (12) screwed to the valve tube (2) is press-fitted at the top end of the ball plug (13). An upper locking sleeve (4) connected to the valve tube (2) is sleeved on the valve rod (12). A knob (5) is installed at the top end of the valve rod (12). A handle (9) is installed on the knob (5). A collar (6) is slidably sleeved on the valve tube (2). A steel wire rope (7) is connected to the collar (6). A pin (8) is connected to the steel wire rope (7). The pin (8) passes through the knob (5) and is inserted into the upper locking sleeve (4).
2. The diaphragm valve according to claim 1, characterized in that: A through hole is formed in the knob (5), and a plurality of slots are formed in the upper locking sleeve (4).
3. A diaphragm valve according to claim 2, characterized in that: A groove is formed at the bottom end inside the valve seat (1). The valve port member (15) is arranged in the middle of the groove. An annular drainage groove is formed on the outer side of the valve port member (15). Two through ports (16) are formed in the drainage groove. Each of the through ports (16) is communicated with a water outlet (11). The hollow part of the valve port member (15) is connected to a water inlet (10).
4. A diaphragm valve according to claim 3, characterized in that: A rubber sleeve is sleeved on the steel wire rope (7).
5. A diaphragm valve according to claim 4, characterized in that: An annular groove is formed in the inner wall of the top of the valve tube (2). A sealing ring is installed in the annular groove. The top of the sealing ring is pressed and fixed by the upper locking sleeve (4).