A bellows stop valve stem for a faucet

Abstract

The present invention relates to the technical field of stop valves, specifically a bellows stop valve stem of a faucet, comprising a stop valve structure, a flange, a first bushing shell and a second bushing shell, the first bushing shell and the second bushing shell are fixedly connected, the rear ends of the first bushing shell and the second bushing shell are fixedly connected with the stop valve structure, the left and right sides of the first bushing shell and the second bushing shell are fixedly connected with the flange, the stop valve structure comprises a valve stem component and a connecting channel component, the valve stem component is movably connected on the connecting channel component, the valve stem component is used to adjust the channel size and perform connection and cutoff processing, the connecting channel component is used for the connection of pipelines, and the connecting channel component has a buffering performance and can reduce internal impact, the valve stem component comprises a hand wheel, a valve stem and a valve flap mechanism, the lower end of the hand wheel is fixedly connected with the valve stem, the lower end of the valve stem is fixedly connected with the valve flap mechanism, and the valve stem is provided with a threaded groove. The purpose of reducing internal impact is achieved through the overall setting of the stop valve structure.

Description

Technical Field

[0001] The invention relates to the technical field of stop valves, in particular to a bellows stop valve stem of a faucet. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to not leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem must be larger, otherwise the valve stem will bend. There are three types of connection methods: flange connection, threaded connection, and welding connection. Since the emergence of self-sealing valves, the flow direction of the stop valve has been changed to enter the valve cavity from above the valve disc. At this time, under the action of the medium pressure, the force to close the valve is small, while the force to open the valve is large, and the diameter of the valve stem can be reduced accordingly. At the same time, under the action of the medium, this type of valve is also more rigorous. my country's valve "three-in-one" has stipulated that the flow direction of the stop valve should be from top to bottom. When the stop valve is opened, the opening height of the valve disc is 25%-30% of the nominal diameter. The flow has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the stop valve should be determined by the stroke of the valve disc.

[0003] As the closest prior art, Chinese patent publication number CN215568023U relates to a forged steel stop valve stem and valve disc connection structure, including a valve disc arranged in a valve body and a valve stem partially penetrated in the valve disc, a plurality of balls are evenly distributed circumferentially between the valve stem and the valve disc, and the valve stem is rotatably connected to the valve disc through the balls;

[0004] At present, the stop valves in the above cases are mostly connected through a straight-through structure to achieve the water level difference when in use, so as to reduce the impact force, thereby achieving the purpose of efficient and long-term use of the stop valve. However, the solution in this case cannot achieve the phenomenon of multi-stage impact reduction protection when in use. There is a lack of buffer protection in the pipe body and the valve stem, which will shorten the service life. Therefore, a device is needed to improve the above problem. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a bellows stop valve stem for a faucet.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a bellows stop valve stem of a faucet, comprising a stop valve structure, a flange, a first bushing shell and a second bushing shell, wherein the first bushing shell and the second bushing shell are fixedly connected, the stop valve structure is fixedly connected to the rear ends of the first bushing shell and the second bushing shell, and the left and right sides of the first bushing shell and the second bushing shell are fixedly connected to the flange;

[0007] The stop valve structure comprises a valve stem component and a connecting channel component, wherein the valve stem component is movably connected to the connecting channel component;

[0008] The valve stem component is used to adjust the channel size and perform connection and cut-off processing;

[0009] The connecting channel component is used for connecting pipelines, and the connecting channel component has a buffering property and can mitigate internal impact.

[0010] Specifically, the valve stem component includes a handwheel, a valve stem and a valve flap mechanism, the lower end of the handwheel is fixedly connected to the valve stem, the lower end of the valve stem is fixedly connected to the valve flap mechanism, the valve stem is provided with a threaded groove, and the valve flap mechanism has a buffering and regulating performance.

[0011] Specifically, the valve flap mechanism includes a connecting guide frame, a buffer disk and a valve flap, the lower end of the connecting guide frame is fixedly connected to the buffer disk, the lower end of the buffer disk is telescopically connected to the valve flap, the valve flap mechanism also includes a buffer cylinder and a telescopic guide rod, the buffer disk is fixed to the buffer cylinder, the bottom of the buffer cylinder is connected to the valve flap through the telescopic guide rod, and the valve flap is buffered and rebounded by the telescopic guide rod.

[0012] Specifically, the valve flap mechanism also includes a first supporting plate frame, a first connecting rod, a first hinge frame, a spring return frame, a guiding rod, a second hinge frame, a second connecting rod and a second supporting plate frame, the first supporting plate frame is plugged with a first connecting rod in the center, the first connecting rod is hinged to the first hinge frame, the lower end of the first hinge frame is hinged to the second hinge frame through a guiding rod, and a spring return frame is elastically connected between the second hinge frame and the first hinge frame, the bottom of the second hinge frame is hinged to the second connecting rod, the center of the second supporting plate frame is plugged with a second connecting rod, the upper end of the first supporting plate frame is fixed to the buffer disk, the lower end of the second supporting plate frame is fixed to the valve flap, and the first supporting plate frame and the second supporting plate frame can be buffered by the first connecting rod, the first hinge frame, the spring return frame, the guiding rod, the second hinge frame and the second connecting rod.

[0013] Specifically, the connecting channel component includes a valve cover, a buffer connecting mechanism, a third bushing shell and a fourth bushing shell. One side of the lower end of the valve cover is fixedly connected to the third bushing shell, and the other side of the lower end of the valve cover is fixedly connected to the fourth bushing shell. A buffer connecting mechanism is provided inside the cavity of the third bushing shell, and the buffer connecting mechanism can be used for distance adjustment to reduce the impact force of the internal fluid.

[0014] Specifically, the buffer connection mechanism includes a conical seat, a buffer disc seat, a hydraulic rod, a matching limit shaft and a sealing seat, the side end of the conical seat is fixedly connected to the buffer disc seat, the upper end of the buffer disc seat is fixedly connected to a connecting guide matching disc, one side of the connecting guide matching disc is fixedly connected to a second connecting rod, the other side of the connecting guide matching disc is fixedly connected to a first connecting rod, the connecting guide matching disc is fixedly connected to the hydraulic rod through the first connecting rod, the hydraulic rod is built into the center of the matching limit shaft, and the hydraulic rod can be telescopically adjusted, the sealing seat is fixed to the matching limit shaft, and the sealing seat performs sealing protection on the hydraulic rod and the matching limit shaft.

[0015] Specifically, the buffer connection mechanism also includes a track frame and a magnetic push plate, the track frame is fixedly connected to the rear of the sealing seat, the magnetic push plate slides on the track frame, and the magnetic push plate is magnetically stretched with one end of the hydraulic rod.

[0016] Specifically, the third bushing shell is provided with a groove body adapted to the conical seat and the buffer disc seat, and the buffer disc seat can generate a gap with the third bushing shell by stretching the right side position, so as to alleviate the fluid resistance through the gap.

[0017] Specifically, the magnetic push plate is connected to an external power supply, and the power supply is used to give the magnetic push plate magnetic properties. A threaded structure adapted to the valve stem is provided in the valve cover, and the valve flap is provided at the center of the connection position between the third bushing shell and the fourth bushing shell to perform a connection blocking function.

[0018] Specifically, the side end of the buffer disc seat is elastically connected to a spring, and a sleeve rod is provided in the center of the spring. The sleeve rod is movably connected to a damping seat, and the damping seat is fixed to the third bushing shell. A groove body adapted to the damping seat is provided in the third bushing shell.

[0019] Beneficial effects of the present invention:

[0020] 1. The present invention can connect and close the pipeline through the structural setting of the valve stem component, wherein the hand wheel drives the valve stem to rotate by rotation, so that the valve stem is telescopically adjusted in the center of the connecting channel component, thereby adjusting the position of the valve flap mechanism and the connecting channel component to achieve the purpose of connection and closure. When the valve flap mechanism is working, the buffer disk and the valve flap can move relative to each other, wherein the buffer cylinder is connected to the valve flap through a telescopic guide rod to absorb part of the stress, thereby reducing the impact of water flow on the bottom and performing buffering protection at the bottom position. The first supporting plate frame and the second supporting plate frame inside the valve flap mechanism are fixed to the buffer disk and the valve flap respectively. When the buffer disk and the valve flap move relative to each other, the first hinge frame, the auxiliary guide rod and the second hinge frame can move relative to each other, and the excess stress can be absorbed by the spring return frame, so that secondary protection can be performed during the buffer operation protection, thereby improving the buffering performance of the bottom, reducing the squeezing of the valve stem component as a whole by the fluid, increasing the service life of the valve stem component as a whole, and avoiding rupture of the connection position of the valve stem component and the connecting channel component due to long-term pressure.

[0021] Second, the present invention can transmit fluid through the structural setting of the connecting channel component, the valve cover and the valve stem component are adapted to perform the limit adjustment of the valve stem component, the third bushing shell and the fourth bushing shell are connected, wherein the fourth bushing shell is the water inlet, and the third bushing shell is the water outlet, and there is a height difference between the third bushing shell and the fourth bushing shell, which can initially relieve the pressure, and the buffer connection mechanism is set to perform secondary processing to relieve the impact force of fluid conduction. The left side opening of the third bushing shell is larger, which can relieve the conduction pressure, and the setting of the buffer connection mechanism mainly relieves the pressure at the weak connection position between the third bushing shell and the fourth bushing shell. The conical seat and the buffer disc seat can be adjusted in position by the hydraulic rod, so that a fault can appear between the buffer disc seat and the third bushing shell. When the fluid reaches this position, it will produce partial reflux due to contact, and come into contact with the conducted fluid to relieve the pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the left side perspective;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the stop valve structure in the present invention from the front perspective;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the valve stem component in the present invention from a front perspective;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the valve flap mechanism of the present invention from a front perspective;

[0028] Figure 6 This is a disassembled diagram of the valve flap mechanism in the present invention;

[0029] Figure 7 It is an enlarged view of point A of the valve flap mechanism in the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting channel component from the front perspective in the present invention;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the buffer connection mechanism of the present invention from a front perspective;

[0032] Fig.10 It is an enlarged view of point B of the buffer connection mechanism in the present invention;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the buffer connection mechanism of the present invention from a rear perspective;

[0034] Fig.12 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the connecting channel component in the present invention.

[0035] In the figure: 1-stop valve structure, 2-flange, 3-first bushing shell, 4-second bushing shell, 5-valve stem component, 6-connecting channel component, 7-handwheel, 8-valve stem, 9-valve disc mechanism, 10-connecting guide frame, 11-buffer plate, 12-valve disc, 13-buffer cylinder, 14-telescopic guide rod, 15-first supporting plate frame, 16-first connecting rod, 17-first hinge frame, 18-spring return frame, 19-co-guide rod, 20-second hinge frame , 21-second connecting rod, 22-second supporting plate frame, 23-valve cover, 24-buffer connection mechanism, 25-third bushing shell, 26-fourth bushing shell, 27-conical seat, 28-buffer disk seat, 29-hydraulic rod, 30-matching limit shaft, 31-sealing seat, 32-first connecting rod, 33-connecting guide matching disk, 34-second connecting rod, 35-track frame, 36-magnetic push plate, 37-spring, 38-sleeve rod, 39-damping seat. Implementation

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] The present invention is further described below in conjunction with the accompanying drawings. Example

[0039] like Figure 1 , Figure 2 As shown, a bellows stop valve stem of a faucet of the present invention comprises a stop valve structure 1, a flange 2, a first bushing shell 3 and a second bushing shell 4, the first bushing shell 3 and the second bushing shell 4 are fixedly connected, the rear ends of the first bushing shell 3 and the second bushing shell 4 are fixedly connected with the stop valve structure 1, and the left and right sides of the first bushing shell 3 and the second bushing shell 4 are fixedly connected with the flange 2;

[0040] like Figure 3 As shown, the stop valve structure 1 includes a valve stem component 5 and a connecting channel component 6, and the valve stem component 5 is movably connected to the connecting channel component 6;

[0041] like Figure 4 As shown, the valve stem component 5 includes a handwheel 7, a valve stem 8 and a valve flap mechanism 9. The lower end of the handwheel 7 is fixedly connected to the valve stem 8, and the lower end of the valve stem 8 is fixedly connected to the valve flap mechanism 9. The valve stem 8 is provided with a threaded groove, and the valve flap mechanism 9 has a buffering and regulating performance. The top of the handwheel 7 has an increased area for convenient manual operation, and the bottom is fixed to the valve flap mechanism 9 through the valve stem 8. The connectivity of the pipeline can be controlled through the valve flap mechanism 9.

[0042] like Figure 5 , Figure 6As shown, the valve flap mechanism 9 includes a connecting guide frame 10, a buffer disk 11 and a valve flap 12. The lower end of the connecting guide frame 10 is fixedly connected to the buffer disk 11, and the lower end of the buffer disk 11 is telescopically connected to the valve flap 12. The valve flap mechanism 9 also includes a buffer cylinder 13 and a telescopic guide rod 14. The buffer disk 11 is fixed to the buffer cylinder 13. The bottom of the buffer cylinder 13 is connected to the valve flap 12 through the telescopic guide rod 14. The valve flap 12 is buffered and rebounded by the telescopic guide rod 14. The connecting guide frame 10, the buffer disk 11 and the valve flap 12 are mutually limited. The connecting guide frame 10 is fixed to the buffer disk 11. The valve flap 12 can be deformed with the buffer disk 11 and the connecting guide frame 10 to absorb stress. The buffer cylinder 13 and the telescopic guide rod 14 perform preliminary buffering work to protect the valve flap 12.

[0043] like Figure 7 As shown, the valve flap mechanism 9 also includes a first supporting plate frame 15, a first connecting rod 16, a first hinge 17, a spring return frame 18, a guiding rod 19, a second hinge 20, a second connecting rod 21 and a second supporting plate frame 22. The first connecting rod 16 is inserted in the center of the first supporting plate frame 15, and the first connecting rod 16 is hinged to the first hinge 17. The lower end of the first hinge 17 is hinged to the second hinge 20 through the guiding rod 19, and the spring return frame 18 is elastically connected between the second hinge 20 and the first hinge 17. The bottom of the second hinge 20 is hinged to the second connecting rod 21, and the second connecting rod 21 is inserted in the center of the second supporting plate frame 22. The upper end of the first supporting plate frame 15 is fixed to the buffer disk 11, and the lower end of the second supporting plate frame 22 is fixed to the buffer disk 11. The valve disc 12 is fixed, and the first supporting plate frame 15 and the second supporting plate frame 22 can be buffered by the first connecting rod 16, the first hinge 17, the spring return frame 18, the auxiliary plug rod 19, the second hinge 20, and the second connecting rod 21. The first supporting plate frame 15 and the second supporting plate frame 22 are fixed in position, and the first connecting rod 16 and the first hinge 17 are connected with the second hinge 20 and the second connecting rod 21 through the auxiliary plug rod 19. The spring return frame 18 at the center position can rebound and reset to absorb stress. Through the change of the distance between the first supporting plate frame 15 and the second supporting plate frame 22, the angles of the first hinge 17 and the second hinge 20 also change, and the spring return frame 18 performs continuous stress absorption.

[0044] like Figure 8As shown, the channel connecting component 6 includes a valve cover 23, a buffer connecting mechanism 24, a third bushing shell 25 and a fourth bushing shell 26. The third bushing shell 25 is fixedly connected to one side of the lower end of the valve cover 23, and the fourth bushing shell 26 is fixedly connected to the other side of the lower end of the valve cover 23. A buffer connecting mechanism 24 is provided inside the cavity of the third bushing shell 25. The buffer connecting mechanism 24 can adjust the distance to reduce the impact force of the internal fluid. The valve cover 23 is fixed to the third bushing shell 25 and the fourth bushing shell 26, and the third bushing shell 25 and the fourth bushing shell 26 are connected. The channel opening of the third bushing shell 25 is at the upper part, and the channel opening of the fourth bushing shell 26 is at the lower part. There is a height difference, which is beneficial to the regulation of flow rate.

[0045] like Fig. 9 , Fig.10 As shown, the buffer connection mechanism 24 includes a conical seat 27, a buffer disc seat 28, a hydraulic rod 29, a matching limit shaft 30 and a sealing seat 31. The side end of the conical seat 27 is fixedly connected to the buffer disc seat 28, and the upper end of the buffer disc seat 28 is fixedly connected to a connecting guide matching disc 33. One side of the connecting guide matching disc 33 is fixedly connected to a second connecting rod 34, and the other side of the connecting guide matching disc 33 is fixedly connected to a first connecting rod 32. The connecting guide matching disc 33 is fixedly connected to the hydraulic rod 29 through the first connecting rod 32. The hydraulic rod 29 is built into the center of the matching limit shaft 30, and the hydraulic rod 29 can be telescopically adjusted. The sealing seat 31 is fixed to the matching limit shaft 30, and the sealing seat 31 performs sealing protection on the hydraulic rod 29 and the matching limit shaft 30. The conical seat 27 is fixed to the buffer disc seat 28, and the hydraulic rod 29 is fixed to the hydraulic rod 29. The position of the conical seat 27 and the buffer disc seat 28 can be adjusted so that there is a gap between the buffer disc seat 28 and the bottom position of the third bushing shell 25. It has a buffer layer and can perform buffering work. At the same time, it is fixed with the limiting shaft 30 and the sealing seat 31 to perform sealing protection. The hydraulic rod 29 can be telescopically adjusted in the center of the limiting shaft 30. The connecting guide matching disc 33 is fixed with the first connecting rod 32 and the second connecting rod 34. The connecting guide matching disc 33 is fixed to the hydraulic rod 29 through the first connecting rod 32. The connecting guide matching disc 33 is fixed to the hydraulic rod 29 on the other side through the second connecting rod 34, so as to realize the constant center position of the conical seat 27 and the buffer disc seat 28. The structure of this case basically adopts aluminum alloy, and the hydraulic rod 29 is a magnetic ferrous alloy material and can be adsorbed.

[0046] like Fig.11 As shown, the buffer connection mechanism 24 also includes a track frame 35 and a magnetic push plate 36. The track frame 35 is fixedly connected to the rear portion of the sealing seat 31. The magnetic push plate 36 slides on the track frame 35. The magnetic push plate 36 is magnetically stretched with one end of the hydraulic rod 29. The center of the track frame 35 can limit the magnetic push plate 36. The magnetic push plate 36 is powered on and generates a magnetic field through electromagnetism, thereby controlling the position of the hydraulic rod 29.

[0047] The third bushing shell 25 is provided with a groove body adapted to the conical seat 27 and the buffer disc seat 28, and the buffer disc seat 28 can generate a gap with the third bushing shell 25 by stretching the right side position, so that the fluid resistance is alleviated through the gap, and the magnetic push plate 36 is connected to the external power supply, and the magnetic push plate 36 is given magnetic properties by the power supply. A threaded structure adapted to the valve stem 8 is provided in the valve cover 23, and the valve flap 12 is arranged at the center of the connection position of the third bushing shell 25 and the fourth bushing shell 26 to perform a connection blocking function.

[0048] The working principle of embodiment 1 is as follows: when in use, the stop valve structure 1, the flange 2, the first bushing shell 3, and the second bushing shell 4 are assembled as a whole, the flange 2, the first bushing shell 3, and the second bushing shell 4 are fixed, and the stop valve structure 1 can be adjusted internally to control the communication of the pipeline;

[0049] First, the user connects the fourth bushing shell 26 with the water inlet channel and the third bushing shell 25 with the drainage channel. The water flows through the fourth bushing shell 26 to the position of the third bushing shell 25. At this time, the user can rotate the hand wheel 7 to drive the valve stem 8 and the valve flap mechanism 9 to rotate in coordination. The rotation of the valve stem 8 and the valve flap mechanism 9 is adapted to the valve cover 23 and can be adjusted in height in the valve cover 23, thereby controlling the position of the valve flap mechanism 9 and the third bushing shell 25 and the fourth bushing shell 26, thereby achieving the pipeline connection control function;

[0050] Afterwards, when the water flow is connected, the valve disc 12 will be impacted by the water flow, the buffer disc 11 is fixed to the connecting guide frame 10, and a buffer cylinder 13 and a telescopic guide rod 14 are arranged between the buffer disc 11 and the valve disc 12. The telescopic guide rod 14 can be relatively deformed and retracted through the buffer cylinder 13 to absorb the transmitted stress. At the same time, the first supporting plate frame 15 and the second supporting plate frame 22 are respectively connected to the buffer disc 11 and the valve disc 12. When the buffer disc 11 and the valve disc 12 are relatively displaced, the second connecting rod 21 and the second hinge frame 20 can also move. The first hinge frame 17 and the spring return frame 18 at the upper part are folded to reduce the angle between the first hinge frame 17 and the second hinge frame 20. At the same time, the spring return frame 18 has elastic properties and can derive the first connecting rod 16 and the second supporting plate frame 22 to give rebound power, thereby realizing the secondary buffer absorption function;

[0051] Afterwards, the water flows through the third bushing shell 25 to the position of the buffer connection mechanism 24, and the user can adjust it through the magnetic push plate 36. The magnetic push plate 36 is powered on and has magnetism, which can drive the hydraulic rod 29 to perform telescopic adjustment. At the same time, the hydraulic rod 29 is fixed with the first connecting rod 32 and the connecting guide matching plate 33, so that the positions of the conical seat 27 and the buffer plate seat 28 can be changed.

[0052] Finally, the buffer disc seat 28 is adjusted so that there is a gap between it and the third bushing shell 25. The fluid contacts the buffer disc seat 28 and can rotate to contact the conducted fluid to relieve part of the pressure, thereby achieving buffer protection work at the connection position of the third bushing shell 25 and the fourth bushing shell 26 and completing the work. Example

[0053] On the basis of Example 1, Fig.12 As shown, the side end of the buffer disc seat 28 is elastically connected to a spring 37, and a sleeve rod 38 is provided in the center of the spring 37. The sleeve rod 38 is movably connected to a damping seat 39, and the damping seat 39 is fixed to the third bushing shell 25. A groove body adapted to the damping seat 39 is provided in the third bushing shell 25.

[0054] When implementing this embodiment, the buffer disc seat 28 is connected to the damping seat 39 through the spring 37 and the sleeve rod 38, and the damping seat 39 maintains a fixed position. When the buffer disc seat 28 is moved and adjusted, the sleeve rod 38 and the sleeve rod 38 can move adaptively. At the same time, when the buffer disc seat 28 is subjected to impact force, the damping seat 39 can drag the buffer disc seat 28 through the spring 37 and the sleeve rod 38, thereby improving the stability of the buffer disc seat 28, reducing the pressure on the buffer disc seat 28, and allowing the buffer disc seat 28 to more stably perform impact resistance work.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bellows stop valve stem for a faucet, characterized in that: The valve comprises a stop valve structure (1), a flange (2), a first bushing shell (3) and a second bushing shell (4), wherein the first bushing shell (3) and the second bushing shell (4) are fixedly connected, the rear ends of the first bushing shell (3) and the second bushing shell (4) are fixedly connected to the stop valve structure (1), and the left and right sides of the first bushing shell (3) and the second bushing shell (4) are fixedly connected to the flange (2); The stop valve structure (1) comprises a valve stem component (5) and a connecting channel component (6), wherein the valve stem component (5) is movably connected to the connecting channel component (6); The valve stem component (5) is used to adjust the size of the channel and perform connection and cutoff processing; The connecting channel component (6) is used for connecting the pipelines, and the connecting channel component (6) has a buffering property and can mitigate internal impact; The valve stem component (5) comprises a hand wheel (7), a valve stem (8) and a valve flap mechanism (9); the lower end of the hand wheel (7) is fixedly connected to the valve stem (8); the lower end of the valve stem (8) is fixedly connected to the valve flap mechanism (9); a threaded groove is provided on the valve stem (8); and the valve flap mechanism (9) has a buffering and regulating performance; The valve flap mechanism (9) comprises a connecting guide frame (10), a buffer plate (11) and a valve flap (12); the lower end of the connecting guide frame (10) is fixedly connected to the buffer plate (11); the lower end of the buffer plate (11) is telescopically connected to the valve flap (12); the valve flap mechanism (9) further comprises a buffer cylinder (13) and a telescopic guide rod (14); the buffer plate (11) is fixed to the buffer cylinder (13); the bottom of the buffer cylinder (13) is connected to the valve flap (12) via the telescopic guide rod (14); and the valve flap (12) is buffered and rebounded via the telescopic guide rod (14); The valve flap mechanism (9) further comprises a first supporting plate frame (15), a first connecting rod (16), a first hinge frame (17), a spring return frame (18), an auxiliary plug rod (19), a second hinge frame (20), a second connecting rod (21) and a second supporting plate frame (22), wherein the first supporting plate frame (15) is centrally inserted with a first connecting rod (16), the first connecting rod (16) is hinged to the first hinge frame (17), the lower end of the first hinge frame (17) is hinged to the second hinge frame (20) via the auxiliary plug rod (19), and the second hinge frame (20) is elastically connected to the first hinge frame (17) by a spring. A spring return frame (18), the bottom of the second hinge frame (20) is hingedly arranged with a second connecting rod (21), the center of the second support plate frame (22) is plugged with a second connecting rod (21), the upper end of the first support plate frame (15) is fixed to the buffer disk (11), the lower end of the second support plate frame (22) is fixed to the valve disc (12), and the first support plate frame (15) and the second support plate frame (22) can be buffered through the first connecting rod (16), the first hinge frame (17), the spring return frame (18), the auxiliary plug rod (19), the second hinge frame (20), and the second connecting rod (21); The connecting channel component (6) comprises a valve cover (23), a buffer connection mechanism (24), a third bushing shell (25) and a fourth bushing shell (26); one side of the lower end of the valve cover (23) is fixedly connected to the third bushing shell (25); the other side of the lower end of the valve cover (23) is fixedly connected to the fourth bushing shell (26); a buffer connection mechanism (24) is provided inside the cavity of the third bushing shell (25); the buffer connection mechanism (24) can be adjusted in distance to reduce the impact force of the internal fluid.

2. The bellows stop valve stem of a faucet according to claim 1, characterized in that: The buffer connection mechanism (24) comprises a conical seat (27), a buffer disc seat (28), a hydraulic rod (29), a matching limit shaft (30) and a sealing seat (31); the side end of the conical seat (27) is fixedly connected to the buffer disc seat (28); the upper end of the buffer disc seat (28) is fixedly connected to a connecting guide matching disc (33); one side of the connecting guide matching disc (33) is fixedly connected to a second connecting rod (34); the other side of the connecting guide matching disc (33) is fixedly connected to a first connecting rod (32); the connecting guide matching disc (33) is fixedly connected to the hydraulic rod (29) via the first connecting rod (32); the hydraulic rod (29) is built into the center of the matching limit shaft (30), and the hydraulic rod (29) can be telescopically adjusted; the sealing seat (31) is fixed to the matching limit shaft (30); the sealing seat (31) performs sealing protection on the hydraulic rod (29) and the matching limit shaft (30).

3. The bellows stop valve stem of a faucet according to claim 2, characterized in that: The buffer connection mechanism (24) further comprises a track frame (35) and a magnetic push plate (36); the track frame (35) is fixedly connected to the rear portion of the sealing seat (31); the magnetic push plate (36) slides on the track frame (35); and the magnetic push plate (36) is magnetically stretched with one end of the hydraulic rod (29).

4. The bellows stop valve stem of a faucet according to claim 3, characterized in that: The third bushing shell (25) is provided with a groove body adapted to the conical seat (27) and the buffer disc seat (28), and the buffer disc seat (28) can generate a gap with the third bushing shell (25) by stretching the right side position, so that fluid resistance is alleviated through the gap.

5. The bellows stop valve stem of a faucet according to claim 4, characterized in that: The magnetic push plate (36) is connected to an external power supply, and the power supply is used to give the magnetic push plate (36) magnetic properties. A threaded structure adapted to the valve stem (8) is provided in the valve cover (23). The valve flap (12) is provided at the center of the connection position between the third bushing shell (25) and the fourth bushing shell (26) to perform a connection blocking function.

6. The bellows stop valve stem of a faucet according to claim 5, characterized in that: The side end of the buffer disc seat (28) is elastically connected to a spring (37), and a sleeve rod (38) is provided at the center of the spring (37). The sleeve rod (38) is movably connected to a damping seat (39). The damping seat (39) is fixed to the third bushing shell (25), and a groove body adapted to the damping seat (39) is provided in the third bushing shell (25).

Images