CN220678249U

CN220678249U - Inflatable constant pressure watering can

Info

Publication number: CN220678249U
Application number: CN202321472336.9U
Authority: CN
Inventors: 彭冲
Original assignee: Yuyao Lewei Precision Mould Co ltd
Current assignee: Yuyao Lewei Precision Mould Co ltd
Priority date: 2023-06-11
Filing date: 2023-06-11
Publication date: 2024-03-29
Anticipated expiration: 2033-06-11

Abstract

The utility model relates to an inflatable constant-pressure watering can, which comprises: the spray device, the kettle body and the air tap assembly. The spraying device is provided with a kettle cover, a nozzle assembly and a control switch, and the kettle body is provided with a containing cavity for containing liquid. The kettle body is detachably connected with the kettle cover, the liquid suction pipe of the nozzle assembly stretches into the accommodating cavity, and the control switch controls the opening and closing of the nozzle assembly. The air tap assembly is fixed on the kettle body and is used for being connected with an external air charging device. The spraying device further comprises a constant pressure assembly mounted to the kettle lid, the constant pressure assembly being configured to define a maximum inflation pressure of the receiving chamber. Compared with the traditional manually pressurized watering can, the inflatable constant-pressure watering can provided by the utility model can be externally connected with an air source for pressurization, and can limit the air pressure in the accommodating cavity, so that the use is more convenient and quick.

Description

Inflatable constant pressure watering can

Technical Field

The utility model relates to the technical field of pressure watering cans, in particular to an inflatable constant-pressure watering can.

Background

The pressure watering can is an article for daily use which utilizes the air pressure in the can to spray liquid to the outside, a user needs to firstly compress the air pump in a reciprocating way to increase the pressure in the can, then opens the nozzle, so that the liquid in the watering can is sprayed outwards under the action of the air pressure, and the pressure watering can is commonly used for watering flowers, washing vehicles, spraying disinfectant and the like.

Chinese patent CN214628794U discloses a watering can pressurized with a manual inflator. The pressurizing mode of the watering can is manual pressurizing, and the inflator pump needs to be repeatedly compressed before the watering can is used, so that the process is laborious, and the use experience is not convenient enough; in the processes of pressurization, water injection and the like, the neck part of the watering can needs to be held by one hand, the surface of the watering can is smooth, and the situation that the watering can slips from the hand easily occurs, so improvement is needed.

Disclosure of Invention

In order to overcome the problems in the related art, the embodiment of the utility model provides an inflatable constant-pressure watering can, which is used for solving the technical problems that the inflation pressurization is needed to be manually pulled in the pressurization process of the watering can, and the inflation efficiency is low.

According to a first aspect of an embodiment of the present utility model, there is provided an inflatable constant pressure watering can comprising:

the spraying device is provided with a kettle cover, a nozzle assembly arranged on the kettle cover and a control switch, and the control switch controls the opening and closing of the nozzle assembly;

the kettle body is detachably connected with the kettle cover, the kettle body is provided with a containing cavity for containing liquid, and a liquid suction pipe of the nozzle assembly stretches into the containing cavity;

the air tap assembly is fixed on the kettle body and is used for being connected with an external air charging device.

In one embodiment, the air tap assembly is located above the highest level of liquid contained in the kettle body.

In an embodiment, the kettle body comprises a barrel body part, a furling part and an assembling part, the sectional area of the furling part gradually decreases from the barrel body part to the assembling part, the air tap assembly is arranged on the furling part, and the kettle cover is connected with the assembling part.

In an embodiment, at least two anti-slip grooves are circumferentially distributed on the outer peripheral wall of the assembly part at intervals, and the depth of each anti-slip groove gradually increases from one side of the gathering part to the other side of the gathering part.

In an embodiment, the kettle body further comprises at least three adjusting grooves extending from the bottom of the barrel body to the direction of the gathering part, and an auxiliary boss is arranged between two adjacent adjusting grooves.

In an embodiment, the bottom of the barrel body is recessed towards the inner side of the accommodating cavity, the outer surface of the bottom wall of the barrel body is partially protruded to form at least two supporting bosses, and the protruding height of each supporting boss is level with the height of each auxiliary boss.

According to a second aspect of an embodiment of the present utility model, there is provided an inflatable constant pressure watering can, wherein the spraying device further comprises a constant pressure assembly mounted to the can lid for defining a maximum inflation pressure of the receiving cavity.

In an embodiment, the constant pressure assembly comprises a sealing column and an elastic piece, wherein the sealing column is connected with the kettle cover in a sliding mode, the elastic piece is sleeved on the sealing column, two ends of the elastic piece are respectively abutted against the sealing column and the kettle cover, the kettle cover is provided with a pressure relief hole communicated to the accommodating cavity, the sealing column is abutted against and sealed with the pressure relief hole under the action of elastic pretightening force of the elastic piece, and the pressure relief hole is in the accommodating cavity, exceeds the elastic pretightening force and pushes the sealing column to move and then be opened.

In an embodiment, the kettle cover comprises a bottom cover and a top cover which is spliced and covered on the bottom cover, an assembly cavity is formed between the bottom cover and the top cover, the constant pressure component is arranged on the top cover, and the pressure relief hole is formed in the bottom cover.

In one embodiment, the spraying device further comprises a manual pressurizing assembly, and the manual pressurizing assembly and the constant pressure assembly are arranged at intervals.

The technical scheme provided by the embodiment of the utility model can comprise the following beneficial effects: the air tap assembly is used for being connected with an external air charging device, and a user can utilize an air pump, compressed air and other external air sources to realize pressurization in the kettle, so that the tedious and laborious process of manual pressurization is avoided. The constant pressure component limits the maximum inflation pressure in the kettle, can automatically discharge redundant gas when the internal air pressure of the watering can is overlarge, and the external air source can pressurize the kettle, so that a user does not need to worry about damage caused by overlarge pressure. The air tap assembly is positioned above the highest liquid level, so that air pressure is stably acted on the liquid in the kettle, and the air tap assembly is prevented from being blocked.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic perspective view of an inflatable constant pressure watering can according to an example embodiment.

FIG. 2 is an exploded view of a spray device of an inflatable constant pressure watering can according to an exemplary embodiment.

FIG. 3 is a cross-sectional view of an inflatable constant pressure watering can with a cross-sectional plane at a central plane of the air cap assembly according to an exemplary embodiment.

FIG. 4 is a cross-sectional view of an inflatable constant pressure watering can shown with a cross-sectional plane at a central plane of the constant pressure assembly according to an exemplary embodiment.

Fig. 5 is a perspective view of a kettle body of an inflatable constant pressure watering can according to an example embodiment.

In the figures, the spraying device 10; a kettle cover 11; a pressure relief hole 111; a bottom cover 112; a top cover 113; a mounting cavity 114; a nozzle assembly 12; a shower head 121; a pipette 122; a spool assembly 123; a movable pull rod 1231; a spring 1232; a control switch 13; a trigger 131; a grip 132; a kettle body 20; a housing chamber 21; a tub portion 22; an adjustment groove 221; an auxiliary boss 222; support boss 223; a reinforcing rib 224; a gathering section 23; a fitting portion 24; an anti-slip groove 241; an air tap assembly 30; a constant pressure assembly 50; a seal post 51; an elastic member 52; a pressure relief cap 53; a manual pressurization assembly 60; a pressing lever 61; a sleeve 62; a piston 63; a check valve 64; a seal ring 65; a lower chamber 66; an upper chamber 67.

Detailed Description

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, the term "coupled" or the like should be interpreted broadly, as it may be fixedly coupled, detachably coupled, or integrally formed, as indicating the relationship of components; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two parts or interaction relationship between the two parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, the present utility model provides an inflatable constant pressure watering can comprising a spraying device 10, a can body 20, an air tap assembly 30, wherein the spraying device 10 is provided with a can lid 11, and the can lid 11 is equipped with a nozzle assembly 12 and a control switch 13.

The kettle body 20 is of an integrally formed thin-wall cavity structure, a containing cavity 21 for containing liquid is arranged, the kettle body 20 comprises a barrel body 22, a furling part 23 and an assembling part 24 from bottom to top, and the sectional area of the furling part 23 gradually decreases from the barrel body 22 to the assembling part 24. Four anti-slip grooves 241 are uniformly distributed around the outer peripheral wall of the assembly portion 24 at intervals, the depth of each anti-slip groove 241 is gradually increased from the lower side to the upper side of the corresponding folding portion 23, and when a user holds the kettle body 20 by one hand, fingers can be buckled in each anti-slip groove 241, so that the kettle body 20 is prevented from slipping off the hand. The pot lid 11 is detachably connected with the fitting portion 24 by screw threads.

The nozzle assembly 12 comprises a spray head 121, a liquid suction pipe 122 and a valve core assembly 123, wherein the spray head 121 is arranged on the side surface of the kettle cover 11, and the liquid suction pipe 122 is arranged below the kettle cover 11. When the lid 11 is connected to the body 20, the pipette 122 extends into the bottom of the receiving chamber 21. The valve core assembly 123 comprises a movable pull rod 1231 and a spring 1232, the valve core assembly 123 is communicated with the spray head 121 and the liquid suction pipe 122, the movable pull rod 1231 props against the spray head 121 under the pretightening force of the spring 1232, and the valve core assembly 123 is in a normally closed state.

The control switch 13 comprises a trigger 131 and a handle 132, the control switch 13 is arranged on the side surface of the kettle cover 11 opposite to the head, and the handle 132 is fixedly connected with the kettle cover 11. Trigger 131 is attached to the end of movable lever 1231 remote from spray head 121. Pressing the trigger 131 of the control switch 13, moving the movable pull rod 1231 to the side far away from the spray head 121, communicating the spray head 121 with the liquid suction pipe 122, opening the nozzle assembly 12, and spraying the liquid in the accommodating cavity 21 from the spray head 121 through the liquid suction pipe 122 under the action of gas pressure; the trigger 131 of the control switch 13 is released and the nozzle assembly 12 resumes the closed state.

The air tap assembly 30 is installed at the furling part 23 of the kettle body 20, and the air tap assembly 30 is a normally closed unidirectional air inlet joint, is communicated with the accommodating cavity 21 inwards and is used for an externally connected air charging device. For example, the inflator is a compressed air source, an electric inflator, or the like. In this embodiment, the air tap assembly 30 is a self-locking quick connector, and in other embodiments, the air tap assembly 30 may be a threaded connector, a snap-fit connector, or the like.

Preferably, the kettle body 20 is marked with a graduated scale, the graduated scale indicates the highest liquid level height at which the kettle body 20 can accommodate liquid, and the air tap assembly 30 is positioned above the highest liquid level graduation of the kettle body 20. The air tap assembly 30 is located above the highest liquid level, and working mediums at two ends of the air tap assembly 30 are all gas, so that air pressure is stably acted above the liquid in the kettle body 20, and the air tap assembly is prevented from being blocked.

In one embodiment, the kettle cover 11 comprises a bottom cover 112 and a top cover 113, the bottom cover 112 is spliced and covered on the top cover 113, an assembly cavity 114 is formed between the bottom cover 112 and the top cover 113, and the bottom cover 112 is provided with a pressure release hole 111 communicated with the accommodating cavity 21.

A constant pressure assembly 50 is mounted to the lid 11, the constant pressure assembly 50 including a sealing post 51 and an elastic member 52, the sealing post 51 slidably coupled to the lid 11, the sealing post 51 passing upwardly through the top cover 113 and being in clearance fit with the top cover 113. The pressure release cap 53 is sleeved at one end of the sealing column 51 higher than the top cover 113, the elastic piece 52 is sleeved at the middle section of the sealing column 51, and the diameter of the lower end of the sealing column 51 is larger than that of the elastic piece 52. The lower end of the elastic member 52 abuts against the seal post 51, and the upper end abuts against the top cover 113. The sealing post 51 abuts against the sealing pressure relief hole 111 under the elastic pre-tightening force of the elastic piece 52. The elastic pre-tightening force of the constant pressure assembly 50 is used for limiting the maximum inflation pressure of the accommodating cavity 21, in the inflation process, the pressure of the accommodating cavity 21 gradually increases, when the pressure in the accommodating cavity 21 exceeds the pre-tightening force of the elastic piece 52, the gas in the accommodating cavity 21 pushes the sealing post 51 and the pressure relief cap 53 to move upwards through the pressure relief hole 111, and the pressure in the accommodating cavity 21 is released outwards from the pressure relief hole 111, the assembly cavity 114 and the gaps between the sealing post 51 and the top cover 113. When the redundant gas is released, the pressure in the accommodating cavity 21 and the pretightening force of the elastic piece 52 are balanced, the sealing column 51 is abutted against the sealing pressure relief hole 111 again under the action of the pretightening force of the elastic piece 52, and the pressure in the accommodating cavity 21 is maintained. During use, a user may manually pull the pressure relief cap 53 to release excess pressure even if the maximum pressure is not reached within the receiving cavity 21. In the present embodiment, the elastic member 52 is a stainless steel spring, and in other embodiments, the elastic member 52 may be an elastic rubber sleeve.

Preferably, the spraying device 10 further includes a manual pressurizing assembly 60, and the manual pressurizing assembly 60 and the constant pressure assembly 50 are spaced apart. The manual pressurizing assembly 60 comprises a pressure lever 61, a sleeve 62, a piston 63 and a check valve 64, wherein the upper end of the sleeve 62 is fixedly arranged on the pot cover 11, and the lower end of the sleeve 62 is provided with the check valve 64 which is one-way breathable to the accommodating cavity 21. The pressing rod 61 is located at the center of the sleeve 62 and penetrates the kettle cover 11. The bottom of the compression bar 61 is connected with a piston 63, and a sealing ring 65 is arranged outside the piston 63 and Zhou Qiantao. The seal 65 is in close contact with the interior of the sleeve 62. The piston 63 divides the sleeve 62 into a lower chamber 66 and an upper chamber 67. Because the pressure lever 61 is in clearance fit with the kettle cover 11, the upper chamber 67 is communicated with the atmosphere, and the air pressure of the upper chamber 67 is constant at the atmospheric pressure. The pressure of the lower chamber 66 varies as the piston 63 moves. When the piston 63 is depressed, the gas in the lower chamber 66 is compressed, the air pressure in the lower chamber 66 becomes greater than the pressure in the accommodating chamber 21, the check valve 64 is opened, and the compressed air is injected into the accommodating chamber 21; when the piston 63 moves upward, the air pressure in the lower chamber 66 becomes smaller than the pressure in the accommodating chamber 21, the check valve 64 is closed, and the liquid in the accommodating chamber 21 does not flow into the lower chamber 66; during the movement of the piston 63 to the top end of the sleeve 62, the pressure of the upper chamber 67, i.e. the atmospheric pressure, is significantly higher than the pressure of the lower chamber 66, and part of the air will diffuse from the upper chamber 67 to the lower chamber 66, thus compressing the plunger 61 reciprocally and manually pressurizing the watering can. The manual pressurizing device provides a second pressurizing mode except an external air source for the watering can so as to meet the use requirements of users in different scenes.

On the basis of the above embodiment, the kettle body 20 further includes three adjusting grooves 221 extending from the bottom of the barrel 22 toward the gathering portion 23, and three auxiliary bosses 222 are formed between two adjacent adjusting grooves 221. The adjusting groove 221 and the auxiliary boss 222 make the bottom of the tub 22 have a gear-shaped profile. Compared with a round outline, the gear-shaped outline is easier to inlay on an uneven placement surface, and is easy to place in a watering can.

Preferably, the bottom of the tub portion 22 is recessed toward the inside of the accommodation chamber 21, and the recess is provided with cross-shaped reinforcing ribs 224. The concave and reinforcing ribs 224 can enhance the structural strength of the bottom of the barrel 22, are not easy to deform under the action of the internal pressure of the accommodating cavity 21, and improve the maximum bearing pressure of the accommodating cavity 21. The outer surface of the bottom wall of the barrel 22 is partially protruded to form four supporting bosses 223, and the protruded heights of the supporting bosses 223 are flush with the height of the auxiliary bosses 222. The auxiliary boss 222 and the supporting boss 223 realize the multipoint support of the bottom of the barrel 22 and the placement surface, compared with the round or circular surface support, the multipoint support enables the watering can to be suitable for being placed on a smooth placement surface and also suitable for being placed on an uneven placement surface, such as a rock surface, a cobble ground and the like.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. An inflatable constant pressure watering can, comprising:

2. The inflatable constant pressure watering can of claim 1 wherein the air cap assembly is located above the highest level of liquid contained in the can body.

3. The inflatable constant pressure watering can according to claim 1, wherein the can body comprises a can body portion, a furling portion and an assembling portion, a sectional area of the furling portion gradually decreases from the can body portion to the assembling portion, the air tap assembly is mounted on the furling portion, and the can lid is connected with the assembling portion.

4. The inflatable constant pressure watering can according to claim 3, wherein at least two anti-slip grooves are circumferentially distributed on the outer peripheral wall of the assembly portion at intervals, and the depth of each anti-slip groove gradually increases from one side of the gathering portion to the other side of the gathering portion.

5. The inflatable constant pressure watering can according to claim 3, wherein the can body further comprises at least three adjusting grooves extending from the bottom of the can body toward the gathering portion, and an auxiliary boss is provided between two adjacent adjusting grooves.

6. The inflatable constant pressure watering can according to claim 5, wherein the bottom of the barrel body is recessed toward the inner side of the accommodating cavity, at least two supporting bosses are formed by partially protruding the outer surface of the bottom wall of the barrel body, and the protruding height of the supporting bosses is flush with the height of the auxiliary bosses.

7. The inflatable constant pressure watering can according to any one of claims 1 to 6, wherein the spraying device further comprises a constant pressure assembly mounted to the can lid for defining a maximum inflation pressure of the receiving cavity.

8. The inflatable constant pressure watering can according to claim 7, wherein the constant pressure component comprises a sealing column and an elastic piece, the sealing column is slidably connected to the can cover, the elastic piece is sleeved on the sealing column, two ends of the elastic piece are respectively abutted against the sealing column and the can cover, the can cover is provided with a pressure relief hole communicated to the accommodating cavity, the sealing column is abutted against and sealed with the pressure relief hole under the action of elastic pre-tightening force of the elastic piece, and the pressure of the pressure relief hole in the accommodating cavity exceeds the elastic pre-tightening force and pushes the sealing column to move and then be opened.

9. The inflatable constant pressure watering can according to claim 8, wherein the can lid comprises a bottom lid and a top lid which is spliced and covered on the bottom lid, an assembly cavity is formed between the bottom lid and the top lid, the constant pressure component is mounted on the top lid, and the pressure relief hole is formed in the bottom lid.

10. The inflatable constant pressure watering can according to claim 7, wherein the spraying device further comprises a manual pressurizing assembly, the manual pressurizing assembly and the constant pressure assembly being disposed at intervals.