CN218935296U

CN218935296U - Waterway control valve structure of spray head

Info

Publication number: CN218935296U
Application number: CN202223457323.2U
Authority: CN
Inventors: 陶鹏翔; 尚挺
Original assignee: Taizhou Ruipu Gardening Products Co ltd
Current assignee: Taizhou Ruipu Gardening Products Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-04-28
Anticipated expiration: 2032-12-21

Abstract

The utility model provides a waterway control valve structure of a spray head, and belongs to the technical field of spraying devices. The valve core solves the problem of improving the sealing performance of the valve core on the basis of considering compact design. The waterway control valve structure of the spray head comprises a shell, a valve cavity and a spring, wherein the valve cavity is vertically provided with a water through hole at the bottom, a valve core for controlling the on-off of the water through hole is arranged in the valve cavity, a sealing sleeve which is cylindrical and is in sealing fit with the water through hole at the upper end is fixed at the water through hole, a sealing hole communicated with the water through hole is arranged at the upper end of the sealing sleeve, a water inlet hole with the diameter larger than that of the sealing hole is arranged at the lower end of the sealing sleeve, a concave shoulder part is arranged between the water inlet hole and the sealing hole, and the sealing hole is sealed by reversely buckling the sealing sleeve in the water inlet hole through the elasticity of the spring. By adopting the design, the compactness of the overall structure design of the spray head is improved, and the valve core has good sealing performance and is convenient to install; meanwhile, the structure is simple, the manufacture is easy, and the manufacturing cost is low.

Description

Waterway control valve structure of spray head

Technical Field

The utility model belongs to the technical field of spraying devices, and relates to a spray head, in particular to a waterway control valve structure of the spray head.

Background

The watering can is a device for spraying, also called a sprayer, and has the main functions of spraying the liquid in the watering can after atomizing, reducing the water consumption, improving the spraying area, reducing the impact force on the spraying surface, being widely used in daily life, and being applicable to agricultural spraying, plant flower watering, epidemic prevention spraying and other scenes.

At present, the existing hand-held watering can mainly comprises a can body, an air cylinder and a spray head. The shower nozzle assembly is installed to kettle body oral area, and the head of gas cylinder is connected in the shower nozzle assembly, and the lower part of gas cylinder stretches into in the kettle body, and one side of shower nozzle assembly sets up to shake hands, sets up the valve rod in the shower nozzle assembly, sets up on the valve rod and presses the handle, presses the handle cover to establish in the assembly, presses the rear portion of handle to stretch into shake hands in, during the use, presses the handle with the hand, presses the handle to drive the valve rod and shifts, makes nozzle water spraying, spraying.

In the prior art, because relatively large air pressure and water pressure exist in the kettle body, the valve body and the valve core structure generally cannot adopt vertical design, and because the valve core adopting vertical design is adopted, the design direction of the valve core is just consistent with the direction of upward pressure generated by the air pressure and the water pressure, and thus when the plug of the valve is plugged on the water through hole, the valve core is easily influenced by the upward thrust of the air pressure and the water pressure to cause the problem of sealing looseness. Therefore, a person skilled in the art generally adopts a transverse design, such as an air pressure type watering can disclosed in chinese patent document CN2606638Y, and the valve core can be directly pushed by the upward pressure generated by air pressure by adopting the transverse design, so as to ensure the sealing performance of the valve core. However, the lateral design results in an increased lateral dimension of the spray head, greatly affecting the compactness of the spray head structure.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a waterway control valve structure of a spray head, and the technical problem to be solved by the utility model is how to improve the sealing performance of a valve core on the basis of considering compact design.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a waterway control valve structure of shower nozzle, includes casing, valve pocket and spring, the valve pocket is seted up along vertical and the bottom is equipped with the limbers, be equipped with the case that is used for controlling limbers break-make in the valve pocket, the lower extreme of case has the shutoff head, its characterized in that, limbers department is fixed with and is tube-shape and upper end and limbers sealing boot of sealing fit, the upper end of sealing boot has the sealed hole that is linked together with the limbers, the lower extreme of sealing boot has the diameter to be greater than the inlet opening of sealed hole, have concave shoulder between inlet opening and the sealed hole, the shutoff head is located the inlet opening and makes the sealed hole sealed on concave shoulder through spring force back-off.

In order to realize compact design of the spray head and reduce the transverse size of the spray head, the valve cavity of the waterway control valve structure adopts a vertical design, and in order to overcome the sealing problem brought by the vertical design of the valve cavity, the sealing sleeve which is cylindrical is fixedly designed at the water through hole, the upper end of the sealing sleeve is in sealing fit with the water through hole, the sealing hole communicated with the water through hole is designed at the upper end of the sealing sleeve, the water inlet hole with the diameter larger than that of the sealing hole is designed at the lower end of the sealing sleeve, so that a concave shoulder part is formed between the water inlet hole and the sealing hole, the plug part of the valve core is positioned in the water inlet hole and reversely buckled on the concave shoulder part to seal the sealing hole, and through the design, the sealing sleeve is not loosened relative to the water through hole, and the sealing sleeve is loosened on the concave shoulder part, namely, the sealing position which is different from the prior waterway control valve is directly on the water through hole; meanwhile, the plug of the valve core is reversely buckled on the concave shoulder part, so that the upward thrust of air pressure and water pressure in the spray can is utilized, and the sealing reliability of the plug is further improved; therefore, through the design, the utility model not only enables the size of the spray head to be more compact, but also improves the sealing performance of the valve core.

In the waterway control valve structure of the spray head, the sealing sleeve has elasticity, the lower end of the valve core is close to the plugging head and is provided with an expansion part which is in a truncated cone shape and has an upward small end, the diameter of the small end of the expansion part is larger than that of the sealing hole, and when the plugging head is reversely buckled on the concave shoulder, the expansion part is positioned in the sealing hole and forms sealing fit with the sealing hole. Through the cooperation design of above elasticity seal cover and expansion portion, utilize the extrusion force that expansion portion extrusion seal cover produced for the sealing fit of case and sealing hole is more reliable, thereby has further improved the sealing performance of case.

In the waterway control valve structure of the spray head, the diameter of the sealing hole is smaller than that of the water through hole. Through the design, the area of the plug to be plugged is reduced, and under the condition that the original plug size is kept unchanged, the sealing area of the plug in contact with the concave shoulder is increased in a direction changing manner, and the sealing performance of the valve core is further improved.

In the waterway control valve structure of the spray head, the plug part is in a truncated cone shape with the small end facing downwards, the diameter of the large end of the plug part is larger than that of the sealing hole and is consistent with that of the water through hole, and the bottom surface of the large end of the plug part is abutted against the concave shoulder part to form a seal. The large end diameter of the plugging head part is slightly larger or slightly smaller than the diameter of the water through hole, and the plugging head part is consistent with the water through hole. Through the design, the valve core can be assembled from top to bottom, namely, the plug of the valve core can directly vertically and downwards pass through the water through hole from the valve cavity, and then the valve core is extruded into the water through hole by utilizing the elastic deformation of the sealing sleeve to enter the water through hole, so that the upper end structural design of the valve core can be more free, large and small, the installation is not influenced, and the compact design of the spray head is facilitated; meanwhile, the conical design of the plug also enables the valve core to be more easily extruded through the installation of the sealing hole, so that the valve core is more convenient to install.

In the waterway control valve structure of the spray head, the shell below the water through hole is provided with the mounting cavity, the sealing sleeve is inserted in the mounting cavity, the outer peripheral surface of the sealing sleeve is tightly matched with the cavity wall of the mounting cavity to form a seal, a blocking shoulder is arranged between the upper end of the mounting cavity and the water through hole, and the upper end face of the sealing sleeve is abutted against the blocking shoulder to form a seal fit. Through the design of above installation cavity for the seal cover can be fixed in water hole department and with water hole sealing fit.

In the waterway control valve structure of the spray head, the lower end of the valve core is close to the expansion part and is provided with a cone-shaped abdication part with an upward small end, and the large end of the abdication part is smaller than the diameter of the sealing hole and is in smooth transition with the small end of the expansion part. Through the design of the relief part, the valve core can smoothly move in the sealing hole.

In the waterway control valve structure of the spray head, the spring is sleeved on the valve core and is arranged in the valve cavity, the upper end of the spring is abutted against the convex shoulder of the valve core, and the lower end of the spring is abutted against the bottom surface of the valve cavity. Through above with the spring design in the valve pocket inside, can practice thrift the installation space of shower nozzle, be favorable to the compact design of shower nozzle.

In the waterway control valve structure of the spray head, the lower end port of the water inlet hole is provided with an annular convex ring part, and the convex ring part is used for being connected and matched with the water inlet joint. Through the design, the sealing sleeve also has the function of connecting the water inlet joint.

Compared with the prior art, the waterway control valve structure of the spray head has the following advantages: by adopting the structural design of the waterway control valve, the compactness of the overall structural design of the spray head is improved, and the valve core has good sealing performance and is convenient to install; meanwhile, the structure is simple, the manufacture is easy, and the manufacturing cost is low.

Drawings

Fig. 1 is a sectional view of a waterway control valve structure of the present sprinkler head.

Fig. 2 is an enlarged partial schematic view at a in fig. 1.

Figure 3 is a schematic cross-sectional view of the present seal cartridge.

Fig. 4 is a schematic structural view of the valve element.

In the figure, 1, a shell; 2. a valve cavity; 3. a spring; 4. a water through hole; 5. a valve core; 51. plugging the head part; 52. an expansion section; 53. a yielding part; 6. sealing sleeve; 61. sealing the hole; 62. a water inlet hole; 63. a concave shoulder; 64. a convex ring portion; 7. a mounting cavity; 8. a shoulder.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Specifically, as shown in fig. 1, the waterway control valve structure of the spray head comprises a shell 1, a valve cavity 2 and a spring 3, wherein the valve cavity 2 is vertically arranged at the bottom of the valve cavity, a water through hole 4 is formed in the bottom of the valve cavity, a valve core 5 for controlling the on-off of the water through hole 4 is arranged in the valve cavity 2, the spring 3 is sleeved on the valve core 5 and is arranged in the valve cavity 2, the upper end of the spring 3 is abutted against a shoulder of the valve core 5, and the lower end of the spring 3 is abutted against the bottom surface of the valve cavity 2. The lower extreme of case 5 has stifled head 51, and water hole 4 department is fixed with and is the seal cover 6 of tube-shape and upper end and water hole 4 sealing fit, has offered installation cavity 7 on the casing 1 of water hole 4 below, and seal cover 6 is pegged graft in above-mentioned installation cavity 7, and the outer peripheral face of seal cover 6 forms sealedly with the chamber wall tight fit of installation cavity 7, has the fender shoulder 8 between the upper end of installation cavity 7 and water hole 4, and the up end of seal cover 6 supports and leans on fender shoulder 8 and forms the aforesaid sealing fit with water hole 4.

As shown in fig. 2 and 3, the upper end of the sealing sleeve 6 is provided with a sealing hole 61 communicated with the water through hole 4, the diameter of the sealing hole 61 is smaller than that of the water through hole 4, the lower end of the sealing sleeve 6 is provided with a water inlet hole 62 with a diameter larger than that of the sealing hole 61, a concave shoulder 63 is arranged between the water inlet hole 62 and the sealing hole 61, the blocking head 51 is positioned in the water inlet hole 62 and is reversely buckled on the concave shoulder 63 by the elasticity of the spring 3 so as to seal the sealing hole 61. The lower end port of the water inlet hole 62 is also provided with a ring-shaped convex ring part 64, and the convex ring part 64 is used for being connected and matched with a water inlet joint.

As shown in fig. 2 and 4, in the present embodiment, the sealing sleeve 6 has elasticity, the lower end of the valve core 5 near the plug portion 51 has an expansion portion 52 with a truncated cone shape and an upward small end, the small end diameter of the expansion portion 52 is larger than the diameter of the sealing hole 61, and when the plug portion 51 is reversely buckled on the concave shoulder 63, the expansion portion 52 is located in the sealing hole 61 and forms sealing fit with the sealing hole 61. The lower end of the valve core 5 is provided with a truncated cone-shaped relief part 53 with an upward small end near the expansion part 52, and the large end of the relief part 53 is smaller than the diameter of the sealing hole 61 and smoothly transits with the small end of the expansion part 52. The plugging head 51 is in a truncated cone shape with the small end facing downwards, the diameter of the large end of the plugging head 51 is larger than that of the sealing hole 61 and is consistent with that of the water through hole 4, and the bottom surface of the large end of the plugging head 51 is abutted against the concave shoulder 63 to form a seal.

In addition, the sealing hole 61 may be a cylindrical hole or a tapered hole, and if a tapered hole is used, as shown in fig. 3, the large end of the sealing hole 61 is directed downward and the diameter of the sealing hole 61 means the diameter of the large end.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the housing 1, the valve chamber 2, the spring 3, the water passage hole 4, the valve spool 5, the plug portion 51, the expansion portion 52, the relief portion 53, the seal cartridge 6, the seal hole 61, the water passage hole 62, the concave shoulder portion 63, the convex ring portion 64, the installation chamber 7, the blocking shoulder portion 8 are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a waterway control valve structure of shower nozzle, includes casing (1), valve pocket (2) and spring (3), valve pocket (2) are offered along vertical and the bottom is equipped with limbers (4), be equipped with in valve pocket (2) and be used for controlling case (5) of limbers (4) break-make, the lower extreme of case (5) has stifled head (51), its characterized in that, limbers (4) department is fixed with and is tube-shape and upper end and limbers (4) sealing sleeve (6), sealing sleeve (6)'s upper end has sealing hole (61) that are linked together with limbers (4), sealing sleeve (6)'s lower extreme has inlet port (62) that the diameter is greater than sealing hole (61), have concave shoulder (63) between inlet port (62) and sealing hole (61), plug portion (51) are located inlet port (62) and make sealing hole (61) sealed on concave shoulder (63) through spring (3) elasticity back-off.

2. The waterway control valve structure of the spray head according to claim 1, characterized in that the sealing sleeve (6) has elasticity, the lower end of the valve core (5) is close to the plugging head (51) and provided with an expansion part (52) which is in a truncated cone shape and has an upward small end, the small end diameter of the expansion part (52) is larger than the diameter of the sealing hole (61), and when the plugging head (51) is reversely buckled on the concave shoulder (63), the expansion part (52) is positioned in the sealing hole (61) and forms sealing fit with the sealing hole (61).

3. Waterway control valve structure of spray heads according to claim 1 or 2, characterized in that the diameter of the sealing hole (61) is smaller than the diameter of the water through hole (4).

4. Waterway control valve structure of sprinkler head according to claim 1 or 2, characterized in that the plug part (51) is cone-shaped with its small end facing downwards, the diameter of the large end of the plug part (51) is larger than the diameter of the sealing hole (61) and is consistent with the diameter of the water through hole (4), and the bottom surface of the large end of the plug part (51) is abutted against the concave shoulder part (63) and forms a seal.

5. The waterway control valve structure of the spray head according to claim 1 or 2, characterized in that a mounting cavity (7) is formed on the shell (1) below the water through hole (4), the sealing sleeve (6) is inserted in the mounting cavity (7), the outer circumferential surface of the sealing sleeve (6) is tightly matched with the cavity wall of the mounting cavity (7) to form a seal, a blocking shoulder (8) is arranged between the upper end of the mounting cavity (7) and the water through hole (4), and the upper end surface of the sealing sleeve (6) is abutted against the blocking shoulder (8) to form a seal fit.

6. The waterway control valve structure of the sprinkler head according to claim 2, characterized in that a position of the lower end of the valve core (5) close to the expansion part (52) is provided with a relief part (53) in a truncated cone shape with an upward small end, and the large end of the relief part (53) is smaller than the diameter of the sealing hole (61) and smoothly transits with the small end of the expansion part (52).

7. Waterway control valve structure of spray heads according to claim 1 or 2, characterized in that the spring (3) is sleeved on the valve core (5) and arranged inside the valve cavity (2), the upper end of the spring (3) is abutted against the shoulder of the valve core (5), and the lower end of the spring (3) is abutted against the bottom surface of the valve cavity (2).

8. The waterway control valve structure of spray head according to claim 1 or 2, characterized in that the lower end port of the water inlet hole (62) is provided with a ring-shaped convex ring part (64), and the convex ring part (64) is used for being connected and matched with a water inlet joint.