阅读说明：本技术 一种减压阀 (Pressure reducing valve ) 是由 余子义 余世亮 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种减压阀,包括阀体及设置于阀体上端的阀杆,所述阀体的下端面固定连接有上端盖,且上端盖的下端面设置有下端盖,所述下端盖的下端面固定连接有空心结构的底座,所述上端盖与下端盖之间设置有固定机构,所述底座为柱形结构分布,且底座的环形侧面设置有支撑机构。本发明通过设置固定机构,其在使用过程中配合锁止机构驱动并限位锁止固定,从而相较于现有的螺栓安装方式而言,该安装简单且操作方便,并进一步避免了室外农田环境下,螺栓受到地面及外界环境的影响而锈蚀的情况发生,并且进一步保证了设备的安全密封效果,提高设备的使用效率,且下端盖及底座通过固定机构与上端盖及阀体可拆卸连接。(The invention discloses a pressure reducing valve which comprises a valve body and a valve rod arranged at the upper end of the valve body, wherein an upper end cover is fixedly connected to the lower end face of the valve body, a lower end cover is arranged on the lower end face of the upper end cover, a base with a hollow structure is fixedly connected to the lower end face of the lower end cover, a fixing mechanism is arranged between the upper end cover and the lower end cover, the base is distributed in a cylindrical structure, and a supporting mechanism is arranged on the annular side face of the base. According to the invention, the fixing mechanism is arranged and is matched with the locking mechanism to drive and limit, lock and fix in the use process, so that compared with the existing bolt installation mode, the bolt installation mode is simple and convenient to operate, the situation that the bolt is corroded due to the influence of the ground and the external environment under the outdoor farmland environment is further avoided, the safe sealing effect of equipment is further ensured, the use efficiency of the equipment is improved, and the lower end cover and the base are detachably connected with the upper end cover and the valve body through the fixing mechanism.)

1. The utility model provides a pressure reducing valve, includes valve body (1) and sets up in valve rod (11) of valve body (1) upper end, its characterized in that: an upper end cover (12) is fixedly connected to the lower end face of the valve body (1), a lower end cover (13) is arranged on the lower end face of the upper end cover (12), a base (14) with a hollow structure is fixedly connected to the lower end face of the lower end cover (13), a fixing mechanism (2) is arranged between the upper end cover (12) and the lower end cover (13), the base (14) is distributed in a cylindrical structure, a supporting mechanism (4) is arranged on the annular side face of the base (14), and a locking mechanism (3) is arranged on the annular side face of the lower end cover (13);

the fixing mechanism (2) comprises plug hole grooves (21), plug boards (22), a bracing ring (23), sliding blocks (24), sliding grooves (25), a butt joint groove (221) and bracing protrusions (231), at least three plug hole grooves (21) are annularly and equidistantly formed in the upper end face of the lower end cover (13), the lower end face of the upper end cover (12) is fixedly connected with the plug boards (22) at positions corresponding to the plug hole grooves (21), the lower end of each plug board (22) extends to the lower end face of the lower end cover (13) through the corresponding plug hole grooves (21) in a clamping mode and is fixedly connected with the upper end cover (12), the plug boards (22) are welded with the upper end cover (12) in a seamless mode, the annular sliding grooves (25) are formed in the position, close to the upper end, of the outer surface of the base (14), the sliding blocks (24) are slidably connected with the sliding grooves (25), the sliding blocks (24) are matched with the sliding grooves (25), and the sliding blocks (24) located in the sliding grooves (25) are horizontally consistent with the outer surface of the base (14), the outer surface fixedly connected with of slider (24) props a ring (23), prop the equal fixedly connected with in annular side and plugboard (22) corresponding position of a ring (23) and prop a arch (231), and prop arch (231) and plugboard (22) dislocation distribution, plugboard (22) medial surface has been seted up and has been connect socket (221), and connect socket (221) and prop a arch (231) and coincide each other, and it all becomes W type structure distribution, plug socket groove (21) shape combines to connect socket (221) to match each other with plugboard (22).

2. A pressure reducing valve according to claim 1, wherein: one third area between the adjacent expanding bulges (231) corresponding to the locking mechanism (3) is in a tooth shape and is in meshed transmission connection with the locking mechanism (3).

3. A pressure reducing valve according to claim 1, wherein: locking mechanism (3) are including gear (31), connection otic placode (32), poker rod (33), spacing hole (34), connecting axle (35), the annular side of lower extreme cover (13) is to propping a tooth region and corresponding position fixedly connected with connection otic placode (32) between arch (231), and connects inside running through of otic placode (32) and rotate and be connected with connecting axle (35), the lower extreme fixedly connected with gear (31) of connecting axle (35), and gear (31) through tooth region with prop a ring (23) meshing connection, the upper end fixedly connected with poker rod (33) of connecting axle (35), and poker rod (33) up end has seted up spacing hole (34).

4. A pressure reducing valve according to claim 3, wherein: the connecting lug plate is characterized in that a movable groove (38) is formed in the connecting lug plate (32) at a position close to the connecting shaft (35), a top rod (36) and a top pressure spring (37) are arranged in the movable groove (38), the top rod (36) is located on the upper side of the top pressure spring (37) and fixed to the upper end of the top pressure spring (37), the lower end of the top pressure spring (37) is fixed to the bottom end of the inner portion of the movable groove (38), the top rod (36) and the movable groove (38) are in T-shaped structures and are matched with each other and movably connected, and the top rod (36) corresponds to the limiting hole (34).

5. A pressure reducing valve according to claim 1, wherein: the supporting mechanism (4) comprises supporting plates (41), hinged seats (42) and extension springs (43), the supporting plates (41) are three groups and correspond to the insertion plates (22) one by one, the annular side faces of the base (14) correspond to the insertion plates (22) and are fixedly connected with the hinged seats (42), the insertion plates (22) are fixed to the hinged seats (42), the insertion plates (22) are distributed in an arc-shaped structure, and the extension springs (43) are fixed between the side faces of the upper ends of the insertion plates and the base (14).

6. A pressure reducing valve according to claim 1, wherein: the lower extreme of plugboard (22) is L type structural distribution, and the upper end integrated into one piece of backup pad (41) is provided with block end (411) of L type structure, and both mutual block match, the terminal surface has been seted up under block end (411) rotates the groove, displacement groove (413) have been seted up to the lower extreme L end regional face of buckling of plugboard (22), and displacement groove (413) inside gyro wheel (412) that are provided with rubber material, inside running through of gyro wheel (412) rotates and connects pivot (414), and pivot (414) run through and extend to the rotation groove that the terminal surface was seted up under block end (411).

Technical Field

The invention relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction. Then, the fluctuation of the pressure behind the valve is balanced with the force of the elastic part by means of the regulation of the control and regulation system, so that the pressure behind the valve is kept constant within a certain error range;

in a field irrigation system, a pressure reducing valve is one of the necessary components, and the function of the pressure reducing valve is that the water flow delivered by a head water source is not reduced in pressure by the pressure reducing valve, and the water flow has higher pressure initially, and the pressure impacts low-pressure irrigation equipment at the downstream, possibly causing rupture and damage, so the pressure of the high-pressure water is reduced by various equipment before the high-pressure water enters a branch main pipe capillary, and the irrigation pressure reducing valve is one of important pressure reducing equipment.

Need be equipped with the relief pressure valve in farmland irrigation system and be used for guaranteeing the normal use of each branch road pipeline, however the relief pressure valve is in outdoor environment mostly in the installation, and do not have dedicated installation fixed bolster, often attached and ground installation, especially ground humidity is great, relief pressure valve bottom and ground contact in the long-time use, receive ground and external environment influence, the easy corrosion of the required bolt of installation, lead to bolted connection department to receive the corruption, and receive the influence of pipeline water hammer effect, the bolt is not hard up more easily, cause the leakage, produce bigger damage to the relief pressure valve body.

To this end, a pressure reducing valve is proposed.

Disclosure of Invention

The present invention is directed to a pressure reducing valve to solve the problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: a pressure reducing valve comprises a valve body and a valve rod arranged at the upper end of the valve body, wherein an upper end cover is fixedly connected to the lower end face of the valve body, a lower end cover is arranged on the lower end face of the upper end cover, a base with a hollow structure is fixedly connected to the lower end face of the lower end cover, a fixing mechanism is arranged between the upper end cover and the lower end cover, the base is distributed in a cylindrical structure, a supporting mechanism is arranged on the annular side face of the base, and a locking mechanism is arranged on the annular side face of the lower end cover;

the fixing mechanism comprises inserting hole grooves, inserting plates, stretching rings, sliding blocks, sliding grooves, butt-joint grooves and stretching bulges, wherein at least three inserting hole grooves are formed in the upper end surface of the lower end cover at equal intervals in a ring shape, the inserting plates are fixedly connected with the lower end surface of the upper end cover at positions corresponding to the inserting hole grooves, the lower end surface of each inserting plate extends to the lower end surface of the lower end cover through the inserting hole grooves to be fixedly clamped, the inserting plates and the upper end cover are welded in a seamless mode, the annular sliding grooves are formed in the outer surface of the base, the sliding blocks are connected inside the sliding grooves in a sliding mode, the sliding blocks inside the sliding grooves are matched with the sliding grooves, the sliding blocks inside the sliding grooves are horizontally consistent with the outer surface of the base, the stretching rings are fixedly connected with the outer surface of the sliding blocks, the stretching bulges are fixedly connected with the annular side surfaces of the stretching rings and the positions corresponding to the inserting plates, and are distributed in a staggered mode, the inner side surface of the insertion plate is provided with a butt joint groove, the butt joint groove is matched with the bracing protrusion and is distributed in a W-shaped structure, and the shape of the insertion hole groove is matched with that of the insertion plate combining butt joint groove.

Preferably, one third area between adjacent expanding bulges corresponding to the position of the locking mechanism is in a tooth shape and is in meshed transmission connection with the locking mechanism.

Preferably, locking mechanism includes gear, connection otic placode, poker rod, spacing hole, connecting axle, the annular side of lower end cover is to propping a tooth region between the arch and corresponding position fixedly connected with connection otic placode, and the inside running through of connection otic placode and the swivelling joint have a connecting axle, the lower extreme fixedly connected with gear of connecting axle, and the gear through tooth region with prop a ring meshing and be connected, the upper end fixedly connected with poker rod of connecting axle, and poker rod up end has seted up spacing hole.

Preferably, a movable groove is formed in the connecting ear plate at a position close to the connecting shaft, a top rod and a top pressure spring are arranged in the movable groove, the top rod is located on the upper side of the top pressure spring and fixed to the upper end of the top pressure spring, the lower end of the top pressure spring is fixed to the bottom end of the inner portion of the movable groove, the top rod and the movable groove are in a T-shaped structure and are matched with each other and movably connected, and the top rod corresponds to the limiting hole.

Preferably, the supporting mechanism comprises three groups of supporting plates, hinged seats and extension springs, the supporting plates correspond to the insertion plates one by one, the annular side faces of the base correspond to the insertion plates and are fixedly connected with the hinged seats, the insertion plates are fixed to the hinged seats, the insertion plates are distributed in an arc structure, and the extension springs are fixed between the side faces of the upper ends of the insertion plates and the base.

Preferably, the lower extreme of plugboard is L type structural distribution, and the upper end integrated into one piece of backup pad is provided with the block end of L type structure, and both mutual block match, the rotation groove has been seted up to the terminal surface under the block end, the regional face of lower extreme L end bending of plugboard has seted up the displacement groove, and the inside gyro wheel that is provided with the rubber material of displacement inslot, the inside rotation of running through of gyro wheel connects the pivot, and the pivot runs through and extends to the rotation groove that the terminal surface was seted up under the block end.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the fixing mechanism is arranged, and the fixing mechanism is matched with the locking mechanism to drive and limit, lock and fix in the use process, so that compared with the existing bolt installation mode, the bolt installation mode is simple and convenient to operate, further the situation that the bolt is corroded due to the influence of the ground and the external environment under the outdoor farmland environment is avoided, the safe sealing effect of equipment is further ensured, the use efficiency of the equipment is improved, and the lower end cover and the base are detachably connected with the upper end cover and the valve body through the fixing mechanism, so that the equipment maintenance difficulty is further reduced;

2. the invention arranges the support mechanism on the annular side surface of the base, and the support mechanism corresponds to the plug board in the fixing mechanism, because the lower half section of the support plate in the support mechanism is made of high-toughness metal material, and the support mechanism can support and fix the base and the valve body integrally through the support plate in the using process, so that the lower end of the support plate and the ground keep enough installation clearance, further avoid the corrosion damage of the ground moisture and pollutants to the base, similarly improve the clamping end at the upper end of the support plate and clamp and fix the L-shaped clamping end at the lower end of the plug board, improve the lower half section of the support plate made of high-toughness metal material in the subsequent using process, buffer and damp the impact of the pipeline water hammer effect on the valve body, simultaneously press the lower half section of the support plate to deform under the vibration state of the valve body, further rotate through the upper half section and pull the plug board downwards through the clamping end, the valve body is more fastened, and the sealing effect of the valve body is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a combination view of the securing mechanism and the support mechanism of the present invention;

FIG. 3 is a cross-sectional view taken at C-C of FIG. 2 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken at E-E of FIG. 2 in accordance with the present invention;

FIG. 5 is a top view of the locking mechanism of the present invention;

FIG. 6 is an enlarged view at D of FIG. 4 of the present invention;

FIG. 7 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

fig. 8 is a cross-sectional view taken at B-B of fig. 7 in accordance with the present invention.

Description of reference numerals:

1. a valve body; 11. a valve stem; 12. an upper end cover; 13. a lower end cover; 14. a base;

2. a fixing mechanism; 21. a plug hole groove; 22. a plugboard; 23. a bracing ring; 24. a slider; 25. a chute; 221. a butt joint groove; 231. expanding the bulge;

3. a locking mechanism; 31. a gear; 32. connecting the ear plates; 33. a poke rod; 34. a limiting hole; 35. a connecting shaft; 36. a top rod; 37. pressing the spring; 38. a movable groove;

4. a support mechanism; 41. a support plate; 42. a hinged seat; 43. an extension spring;

411. clamping the end head; 412. a roller; 413. a displacement slot; 414. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

a pressure reducing valve comprises a valve body 1 and a valve rod 11 arranged at the upper end of the valve body 1, wherein an upper end cover 12 is fixedly connected to the lower end face of the valve body 1, a lower end cover 13 is arranged on the lower end face of the upper end cover 12, a base 14 with a hollow structure is fixedly connected to the lower end face of the lower end cover 13, a fixing mechanism 2 is arranged between the upper end cover 12 and the lower end cover 13, the base 14 is distributed in a cylindrical structure, a supporting mechanism 4 is arranged on the annular side face of the base 14, and a locking mechanism 3 is arranged on the annular side face of the lower end cover 13;

the fixing mechanism 2 comprises an inserting hole groove 21, an inserting plate 22, a bracing ring 23, a sliding block 24, a sliding groove 25, a butt joint groove 221 and a bracing protrusion 231, wherein at least three inserting hole grooves 21 are annularly and equidistantly formed on the upper end surface of the lower end cover 13, the lower end surface of the upper end cover 12 is fixedly connected with the inserting plate 22 at a position corresponding to the inserting hole grooves 21, the lower end of the inserting plate 22 extends to the lower end surface of the lower end cover 13 through the inserting hole grooves 21 to be fixedly clamped, the inserting plate 22 is welded with the upper end cover 12 in a seamless mode, an annular sliding groove 25 is formed in the position, close to the upper end, of the outer surface of the base 14, the sliding groove 25 is internally and slidably connected with the sliding block 24, the sliding block 24 is matched with the sliding groove 25, the sliding block 24 positioned in the sliding groove 25 is horizontally consistent with the outer surface of the base 14, the bracing ring 23 is fixedly connected with the bracing protrusion 231 at a position, corresponding to the annular side surface of the inserting plate 22, the expanding protrusion 231 and the inserting plate 22 are distributed in a staggered manner, the inner side surface of the inserting plate 22 is provided with a butt joint groove 221, the butt joint groove 221 is matched with the expanding protrusion 231, the butt joint groove 221 and the expanding protrusion 231 are distributed in a W-shaped structure, and the shape of the inserting hole groove 21 is matched with the shape of the butt joint groove 221 combined with the inserting plate 22.

At first, the user corresponds upper end cover 12 and lower end cover 13, plug board 22 corresponds with the plug hole groove 21 of corresponding position and inserts into plug hole groove 21 this moment, then extend to the lower extreme surface of lower end cover 13, it is fixed to preliminary butt joint block, then the user drives through locking mechanism 3 and props an ring 23 and rotate, and then force to prop a ring 23 surface and plug board 22 dislocation distribution prop a arch 231 and extrude plug board 22, and correspond with butt joint groove 221, further displacement extrusion is carried out spacing fixedly to plug board 22 through this mode, realize the extrusion spacing after the block and fix.

As an embodiment of the present invention, as shown in fig. 3, one third of the area between the adjacent expanding protrusions 231 corresponding to the position of the locking mechanism 3 is tooth-shaped and is in meshing transmission connection with the locking mechanism 3.

During operation, the user is further through rotating locking mechanism 3, through propping the adjacent tooth form regional meshing transmission that props between the arch 231 of propping of opening ring 23 surface, and then the drive props opening ring 23 and passes through slider 24 and 25 sliding connection anticlockwise rotations of spout at base 14 surface, thereby make with plugboard 22 dislocation distribution prop an arch 231 displacement, and to the butt joint groove 221 of pegging graft in the plugboard 22 behind the plughole groove 21 correspond and to its outside expansion extrusion, thereby extrude spacing fixedly to plugboard 22.

As an embodiment of the present invention, as shown in fig. 4 and 5, the locking mechanism 3 includes a gear 31, a connecting lug plate 32, a poking rod 33, a limiting hole 34, and a connecting shaft 35, the connecting lug plate 32 is fixedly connected to a position corresponding to a tooth area between the tension protrusions 231 on the annular side surface of the lower end cover 13, the connecting shaft 35 penetrates through and is rotatably connected to the inside of the connecting lug plate 32, the gear 31 is fixedly connected to a lower end of the connecting shaft 35, the gear 31 is engaged with the tension ring 23 through the tooth area, the poking rod 33 is fixedly connected to an upper end of the connecting shaft 35, and the limiting hole 34 is formed on an upper end surface of the poking rod 33.

When the device works, after the plugging plate 22 is preliminarily plugged and corresponds to the plugging hole slot 21, at the moment, the user rotates the poke rod 33 clockwise, at the moment, the poke rod 33 controls the gear 31 on the lower end surface of the connecting lug plate 32 to rotate clockwise through the connecting shaft 35, the gear 31 is in meshing transmission connection with the toothed area on the outer surface of the stretching ring 23, therefore, in the rotating process of the gear 31, the stretching ring 23 can rotate anticlockwise on the annular side surface of the base 14 through the sliding block 24 and the sliding slot 25, the stretching protrusions 231 distributed in a staggered mode are in one-to-one correspondence with the plugging plate 22, the stretching protrusions 231 are forced to extrude the plugging plate 22 outwards to enter the butting slot 221 to correspond to the butting slot 221, compared with the existing bolt installation mode, the installation mode is simpler, the air tightness of the valve body 1 is guaranteed in the subsequent use process, and the use efficiency of the device is further improved by matching with the supporting mechanism 4.

As an embodiment of the present invention, as shown in fig. 4 and 6, a movable groove 38 is formed in the connecting ear plate 32 at a position close to the connecting shaft 35, a top rod 36 and a top pressure spring 37 are arranged in the movable groove 38, the top rod 36 is located on the upper side of the top pressure spring 37 and fixed to the upper end of the top pressure spring 37, the lower end of the top pressure spring 37 is fixed to the bottom end of the inside of the movable groove 38, the top rod 36 and the movable groove 38 are matched and movably connected in a T-shaped structure, and the top rod 36 corresponds to the limiting hole 34.

When the plug-in board connector 22 is in operation, when the poke rod 33 is rotated, the tension ring 23 rotates and the tension protrusion 231 is used to perform extrusion limit on the plug-in board 22, the rotation angle of the poke rod 33 needs to be limited, so as to prevent accidental contact in the subsequent use process, which leads to extrusion limit fixation on the plug-in board 22, therefore, the push rod 36 located in the rotating area of the poke rod 33 is extruded by the poke rod 33 in the process of rotating the poke rod 33, moves downwards in the movable groove 38 and compresses the internal jacking spring 37 until the poke rod 33 is rotated, the push rod 36 at this time just corresponds to the position of the limit hole 34, the push rod 36 loses the downward extrusion force, moves upwards under the action of the jacking spring 37, is inserted into the limit hole 34 in the connecting lug plate 32 in a protruding manner and corresponds to the limit hole 34 on the poke rod 33, and the limitation on the rotation angle of the poke rod 33 is completed, and then fix poker rod 33 to restriction gear 31 rotates, further restricts the rotation of propping a ring 23, realizes the restriction to poker rod 33 position through this structural design, thereby further guarantees to prop the stability of a ring 23 rotation state, further spacing to fixed establishment 2.

As an embodiment of the present invention, as shown in fig. 2, the supporting mechanism 4 includes three groups of supporting plates 41, hinge seats 42, and extension springs 43, the number of the supporting plates 41 is three, and the supporting plates correspond to the positions of the plugboard 22 one by one, the hinge seats 42 are fixedly connected to the annular side surface of the base 14 corresponding to the position of the plugboard 22, the plugboard 22 is fixed to the hinge seats 42, the plugboard 22 is distributed in an arc structure, and the extension springs 43 are fixed between the upper end side surface of the plugboard 22 and the base 14.

During operation, three sets of support plates 41 corresponding to the insertion plate 22 are distributed in an arc structure, the support plates 41 in a silent state are overturned outwards under the stretching of the stretching spring 43, three supporting points are formed at the bottoms of the three support plates 41 and are fixed on the ground, so that the three support plates and the valve body 1 are supported and fixed, a certain gap is reserved between the three support plates and the ground, the ground can be prevented from contacting the base 14 in the subsequent use process, and the friction damage of the valve body 1 and the ground caused by the vibration in the water hammer effect process is reduced.

As an embodiment of the present invention, as shown in fig. 7 and 8, the lower end of the plugboard 22 is distributed in an L-shaped structure, the upper end of the support plate 41 is integrally formed with an L-shaped engaging end 411, the engaging end 411 and the support plate are engaged with each other, the lower end surface of the engaging end 411 is provided with a rotating groove, the lower end L-shaped bending area surface of the plugboard 22 is provided with a displacement groove 413, a roller 412 made of rubber is disposed in the displacement groove 413, the roller 412 is rotatably connected to a rotating shaft 414 in a penetrating manner, and the rotating shaft 414 extends to the rotating groove provided in the lower end surface of the engaging end 411 in a penetrating manner.

After the inserting plate 22 is inserted into the inserting hole slot 21, the user adjusts the rotation of the expanding ring 23 through the locking mechanism 3, and further extrudes and supports the inserted inserting plate 22 to be fixed, then adjusts the upper end angle of the supporting plate 41, so that the upper end clamping end 411 is connected and clamped with the lower end L-shaped clamping end of the inserting plate 22, and further in the subsequent shaking process of the valve body 1, the lower half section of the high-toughness metal end of the supporting plate 41 is bent to buffer and damp the upper half section, and the upper half section is stretched and turned over, the inserting plate 22 is moved forward downwards by using the clamping end 411, so that the sealing and fixing effect is obvious and cannot be influenced by the water hammer effect, meanwhile, the roller 412 and the displacement slot 413 are applied to the process of needing to detach the upper end cover 12 and the lower end cover 13, firstly, the locking mechanism 3 controls the reverse displacement of the expanding ring 23 to force the expanding protrusion 231 to be separated from the inserting plate 22 butt-joint slot 221, and then the user turns over the supporting plate 41 towards the center of the base 14, the roller 412 is forced to move in the displacement groove 413, and the roller 412 forces the plug board 22 to deform inward, so that the user pulls the top cover 12 upward to complete the separation of the plug board 22 from the plug hole groove 21.

The working principle is as follows:

firstly, a user corresponds the upper end cover 12 and the lower end cover 13, at the same time, the inserting plate 22 corresponds to the inserting hole groove 21 at the corresponding position and is inserted into the inserting hole groove 21, then the inserting plate extends to the outer surface of the lower end cover 13, and is preliminarily butted, clamped and fixed, after the inserting plate 22 is preliminarily inserted and corresponds to the inserting hole groove 21, at the same time, the user rotates the poking rod 33 clockwise, at the same time, the poking rod 33 controls the gear 31 at the lower end surface of the connecting lug plate 32 to rotate clockwise through the connecting shaft 35, and the gear 31 is engaged and connected with the tooth-shaped area of the outer surface of the stretching ring 23 in a transmission way, so that in the rotation process of the gear 31, the stretching ring 23 can rotate anticlockwise on the annular side surface of the base 14 through the sliding block 24 and the sliding groove 25, so that the stretching protrusions 231 distributed in a staggered way correspond to the inserting plate 22 one to one another, and the stretching protrusions are forced to extrude the inserting plate 22 outwards into the abutting groove 221 to correspond to the stretching ring 231, when the poke rod 33 is rotated, the tension ring 23 rotates and completes the extrusion limit of the plug-in board 22 through the tension protrusion 231, the rotation angle of the poke rod 33 needs to be limited, so as to prevent the plug-in board 22 from being extruded and limited and fixed by the tension ring in the subsequent use process, therefore, the ejector rod 36 positioned in the rotating area surface of the poke rod 33 is extruded by the poke rod 33 in the process of rotating the poke rod 33, moves downwards in the movable groove 38 and compresses the internal jacking spring 37 until the poke rod 33 is rotated, the ejector rod 36 at the moment just corresponds to the position of the limit hole 34, the ejector rod 36 loses the downward extrusion force, moves upwards under the action of the jacking spring 37, is convexly inserted into the limit hole 34 on the connecting lug plate 32 and corresponds to the limit hole 34 on the poke rod 33, the limitation of the rotation angle of the poke rod 33 is completed, and the poke rod 33 is fixed, thereby limiting the rotation of the gear 31 and further limiting the rotation of the tension ring 23, three sets of support plates 41 corresponding to the insertion plate 22 are distributed in an arc structure, the support plates 41 in a silent state are turned outwards under the extension of the extension spring 43, the bottom of the three support plates 41 form three supporting points and are fixed on the ground, thereby supporting and fixing the valve body 1, reserving a certain gap with the ground, further avoiding the ground from contacting with the base 14 in the subsequent use process, thereby reducing the friction damage of the valve body 1 and the ground due to the vibration in the process of water hammer effect, after the insertion plate 22 is inserted into the insertion hole groove 21, the user adjusts the tension ring 23 to rotate through the locking mechanism 3, further extruding and abutting the inserted insertion plate 22 outwards to be fixed, then adjusting the upper end angle of the support plate 41, and enabling the upper end clamping end 411 to be clamped and fixed with the lower end L-shaped clamping end of the insertion plate 22, furthermore, in the subsequent shaking process of the valve body 1, the lower half section of the high-toughness metal end of the support plate 41 is bent to buffer and absorb shock, and the upper half section of the support plate 41 is folded, and the insertion plate 22 is moved forward downwards by using the clamping end 411, so that the sealing and fixing effect is remarkable, and the influence of the water hammer effect is avoided, meanwhile, the roller 412 and the displacement groove 413 are applied to the process of disassembling the upper end cover 12 and the lower end cover 13, firstly, the locking mechanism 3 controls the tension ring 23 to move reversely, so that the tension protrusion 231 is forced to be separated from the butt joint groove 221 of the insertion plate 22, then, a user folds the support plate 41 towards the center of the base 14, so that the roller 412 is forced to be in the displacement groove 413, and further the insertion plate 22 is forced to deform inwards, and at this time, the user can finish the separation of the insertion plate 22 and the insertion hole groove 21 by pulling the upper end cover 12 upwards.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.