CN213655110U

CN213655110U - One-way valve and hand pump capable of accurately controlling output quantity thereof

Info

Publication number: CN213655110U
Application number: CN202022591785.8U
Authority: CN
Inventors: 叶超平; 高嵩; 田丽; 柴斌; 胡平波
Original assignee: Shenzhen Daozhong Innovation Technology Co ltd
Current assignee: Shenzhen Daozhong Innovation Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-07-09
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a check valve and hand pump that can accurate control output volume thereof, the check valve includes: the support comprises a bottom plate portion and a support portion connected to the bottom plate portion, a containing cavity is arranged in the support portion, a through hole is formed in the bottom plate portion, the floating ball and the elastic piece are arranged in the containing cavity, one end of the elastic piece abuts against the bottom wall of the containing cavity, the other end of the elastic piece abuts against the floating ball, and the floating ball is pressed on the through hole. Compared with the prior art, the one-way valve and the hand pump capable of accurately controlling the output quantity have the advantages that the one-way valve adopts the combined structure design of the support, the spring and the floating ball, the spring provides extra pressure for the floating ball, so that the liquid cannot remain in the pipe cavity in the working process of the hand pump, the pumping of all liquid in one stroke is realized, and the quantity of the output liquid can be accurately controlled.

Description

One-way valve and hand pump capable of accurately controlling output quantity thereof

Technical Field

The utility model relates to a hand pump technical field especially relates to a check valve and but hand pump of accurate control output volume thereof.

Background

The existing hand pump does not need to accurately control the amount of liquid output by one-time pressing, so a one-way baffle is generally arranged in the hand pump to realize the opening and closing of a one-way valve. However, when the output quantity needs to be accurately controlled, the existing one-way baffle can cause liquid to remain in the hand pump, so that the output quantity is difficult to be accurately controlled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a check valve and but the hand pump of accurate control output quantity to solve the present remaining liquid of current pressurized and lead to the technical problem that output quantity is difficult to accurate control.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an embodiment of the utility model provides a check valve, it includes: the support comprises a bottom plate portion and a support portion connected to the bottom plate portion, a containing cavity is arranged in the support portion, a through hole is formed in the bottom plate portion, the floating ball and the elastic piece are arranged in the containing cavity, one end of the elastic piece abuts against the bottom wall of the containing cavity, the other end of the elastic piece abuts against the floating ball, and the floating ball is pressed on the through hole.

Wherein, still be equipped with a plurality of openings on the chamber wall of appearance chamber.

Wherein, the bottom of bottom plate portion still is equipped with a sealing washer.

The embodiment also provides a hand pump capable of accurately controlling the output quantity, which comprises a hand handle, a moving pipe, a communicating pipe and an elastic telescopic part, wherein infusion channels are arranged in the hand handle, the moving pipe and the communicating pipe, the hand handle is connected to the upper end part of the moving pipe, the communicating pipe is sleeved at the lower end part of the moving pipe, one end of the elastic telescopic part abuts against the lower end part of the moving pipe, the other end of the elastic telescopic part abuts against the lower end part of the communicating pipe, the hand handle and the communicating pipe are internally provided with one or more check valves, and the opening and closing directions of the check valves are opposite.

Wherein, hand handle includes: the horizontal pipe is connected with the right-angle output pipe at the front end of the horizontal pipe and the right-angle input pipe at the other end of the horizontal pipe, and one check valve is arranged in the right-angle input pipe.

The upper end of the communicating pipe is also sleeved with a connecting cover for hermetically connecting the opening of the container, the connecting cover is connected with the outer wall of the communicating pipe through a pressing cover, and the connecting cover is rotatably connected with the outer wall of the communicating pipe.

The upper end of the limiting pipe is abutted to the gland, and the lower end of the limiting pipe is abutted to the outer wall of the lower end of the moving pipe.

The inner wall of the lower end of the communicating pipe is further transversely provided with an annular table part, the one-way valve is connected to the annular table part, and the lower end of the elastic telescopic piece is abutted to the bottom plate part.

Wherein, the lower tip of removal pipe still is equipped with a sealed tube head, the upper end butt of elastic expansion piece in sealed tube head, sealed butt between the inner wall of sealed tube head and communicating pipe.

Wherein, the elastic expansion piece is a spring.

Compared with the prior art, the one-way valve and the hand pump capable of accurately controlling the output quantity have the advantages that the one-way valve adopts the combined structure design of the support, the spring and the floating ball, the spring provides extra pressure for the floating ball, so that the liquid cannot remain in the pipe cavity in the working process of the hand pump, the pumping of all liquid in one stroke is realized, and the quantity of the output liquid can be accurately controlled.

The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.

Drawings

Fig. 1 is a schematic view of the overall structure of the hand pump capable of accurately controlling the output of the present invention.

Fig. 2 is a whole cross-sectional view of the hand pump capable of accurately controlling the output of the present invention.

Fig. 3 is a schematic diagram of the partially enlarged structure of the check valve of the present invention.

Fig. 4 is a partially enlarged schematic view of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

Referring to fig. 3 and 4, the present embodiment provides a check valve, which includes: the float ball bearing comprises a support 104, a float ball 102 and an elastic member 103, wherein the support 104 comprises a bottom plate portion 1041 and a support portion 1042 connected to the bottom plate portion 1041, a containing cavity 1043 is arranged in the support portion 1042, a through hole 1044 is arranged on the bottom plate portion 1041, the float ball 102 and the elastic member 103 are arranged in the containing cavity 1043, one end of the elastic member 103 abuts against the bottom wall of the containing cavity 1043, the other end of the elastic member abuts against the float ball 102, and the float ball 102 is pressed on the through hole 1044. When the elastic member 103 is not acted by an external force, the floating ball 102 is pressed towards the through hole 1044, so that the floating ball 102 and the through hole 1044 are in a sealed state, otherwise, if the external force is received, the elastic member 103 is further compressed, so that the floating ball 102 is separated from the through hole 1044, the through hole is opened, and the functions of a one-way through and reverse sealing check valve are realized.

A plurality of openings 1045 are further formed in the wall of the cavity 1043, and when the openings 1045 are used as a hand pump, liquid can flow out through the through holes 1044 and then through the openings 1045 conveniently.

In order to improve the sealing performance between the check valve and the hand pump, a sealing ring 101 is further disposed at the bottom of the bottom plate portion 1041.

In this embodiment, the elastic member 103 is preferably a spring.

The embodiment also provides a hand pump capable of accurately controlling the output quantity, please refer to fig. 1 to 4, and the hand pump capable of accurately controlling the output quantity comprises a hand handle 1, a moving pipe 3, a communicating pipe 7 and an elastic telescopic part 9, wherein infusion channels are arranged in the hand handle 1, the moving pipe 3 and the communicating pipe 7, the hand handle 1 is connected to the upper end part of the moving pipe 3, the communicating pipe 7 is sleeved at the lower end part of the moving pipe 3, one end of the elastic telescopic part 9 abuts against the lower end part of the moving pipe 3, and the other end abuts against the lower end part of the communicating pipe 7. The hand handle 1 and the communicating pipe 7 are both provided with one-way valves as described above, and the opening and closing directions of the one-way valves are opposite, specifically, the first one-way valve 2 is arranged in the hand handle 1, the second one-way valve 10 is arranged in the communicating pipe 7, the first one-way valve 2 and the second one-way valve 10 have the same structure, and only the one-way opening and closing directions are completely opposite, so that liquid can be pumped out through pressure change.

As shown in fig. 2, the hand grip 1 includes: the device comprises a horizontal pipe 11, a right-angle output pipe 12 connected to the front end of the horizontal pipe 11, and a right-angle input pipe 13 connected to the other end of the horizontal pipe 11, wherein the first one-way valve 2 is arranged in the right-angle input pipe 13. The change of feed liquor and stock solution direction has been realized to right angle output tube 12 and right angle input tube 13, and the equipment connection between the three parts is more convenient simultaneously.

The upper end of the communicating pipe 7 is further sleeved with a connecting cover 5 for hermetically connecting the opening of the container, the connecting cover 5 is connected with the outer wall of the communicating pipe 7 through a pressing cover 4, and the connecting cover 5 is rotatably connected with the outer wall of the communicating pipe 7. Specifically, an annular wall 72 extends outwards from an upper end wall of the communication pipe 7, a circular pipe connecting wall 73 extends vertically from the annular wall 72, the pressing cover 4 includes an inner pipe 42 and an outer pipe 41, the upper ends of the inner pipe 42 and the outer pipe 41 are connected together, the circular pipe connecting wall 73 is inserted into an annular cavity formed between the inner pipe 42 and the outer pipe 41, the upper end of the connecting cover 5 is hung on the annular wall 72, so that the connecting cover 5 can be connected in a freely rotating manner, and the connecting cover 5 can insert the hand pump capable of accurately controlling the output quantity into an opening of a container.

Furthermore, in order to control the amount of liquid output by the one-stroke hand pump, a limiting pipe 6 is further arranged at a pipe joint between the moving pipe 3 and the communicating pipe 7, the upper end of the limiting pipe 6 abuts against the gland 4, and the lower end of the limiting pipe abuts against the outer wall of the lower end of the moving pipe 3. That is, the moving tube 3 is partially inserted into the communicating tube 7, a tube gap is formed between the two overlapped tube bodies, the limiting tube 6 is arranged in the tube gap, the length of the limiting tube 6 can control the moving tube 3 to act on the hand handle 1 for a maximum stroke, and the stroke directly determines the amount of liquid output by pressing the hand pump once.

Referring to fig. 4 again, which is a schematic view of a partially enlarged structure in fig. 2, an annular table portion 71 is further transversely disposed on an inner wall of a lower end of the communication pipe 7, the second check valve 10 is connected to the annular table portion 71, a lower end of the elastic expansion member 9 abuts against the bottom plate portion 1041, and a sealing ring 101 below the bottom plate portion 1041 hermetically connects the bottom plate portion 1041 and the annular table portion 71.

In order to facilitate processing and assembling, the lower end part of the moving pipe 3 is further provided with a sealing pipe head 8, the upper end part of the elastic expansion piece 9 is abutted against the sealing pipe head 8, and the sealing pipe head 8 is abutted against the inner wall of the communicating pipe 7 in a sealing manner to form a piston mechanism.

In this embodiment, the elastic expansion member 9 is a spring or an elastic tube.

Among them, it should be noted that: the first one-way valve 2 can be opened when being stressed from top to bottom, and the second one-way valve 10 matched with the first one-way valve can be opened when being stressed from bottom to top, so that the liquid is firstly sucked into the tube cavity and then is output from the hand handle 1 in the one-time action and extension process of the hand handle 1.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A check valve, comprising: the support comprises a bottom plate portion and a support portion connected to the bottom plate portion, a containing cavity is arranged in the support portion, a through hole is formed in the bottom plate portion, the floating ball and the elastic piece are arranged in the containing cavity, one end of the elastic piece abuts against the bottom wall of the containing cavity, the other end of the elastic piece abuts against the floating ball, and the floating ball is pressed on the through hole.

2. The one-way valve of claim 1, wherein the chamber wall of the chamber is further provided with a plurality of openings.

3. The check valve of claim 2, wherein a bottom of said bottom plate portion is further provided with a sealing ring.

4. A hand pump capable of accurately controlling output quantity is characterized by comprising a hand handle, a moving pipe, a communicating pipe and an elastic telescopic part, wherein infusion channels are arranged in the hand handle, the moving pipe and the communicating pipe, the hand handle is connected to the upper end of the moving pipe, the communicating pipe is sleeved at the lower end of the moving pipe, one end of the elastic telescopic part abuts against the lower end of the moving pipe, the other end of the elastic telescopic part abuts against the lower end of the communicating pipe, the hand handle and the communicating pipe are internally provided with a one-way valve according to any one of claims 1 to 3, and the opening and closing directions of the one-way valve are opposite.

5. The precision controlled output hand pump in accordance with claim 4 wherein the hand handle comprises: the horizontal pipe is connected with the right-angle output pipe at the front end of the horizontal pipe and the right-angle input pipe at the other end of the horizontal pipe, and one check valve is arranged in the right-angle input pipe.

6. The hand pump of claim 5, wherein the upper end of the communication pipe is further sleeved with a connection cap for sealing the opening of the connection container, the connection cap is connected to the outer wall of the communication pipe through a pressing cap, and the connection cap is rotatably connected to the outer wall of the communication pipe.

7. The hand pump of claim 6 wherein the tube gap between the moving tube and the communicating tube is further provided with a limiting tube, the upper end of the limiting tube abuts against the gland, and the lower end of the limiting tube abuts against the outer wall of the lower end of the moving tube.

8. The precision output control hand pump in accordance with claim 7 wherein the lower end of the communication tube further defines an annular land portion, the one-way valve is connected to the annular land portion, and the lower end of the resilient flexible member abuts the base portion.

9. The hand pump of claim 8, wherein the lower end of the movable tube further comprises a sealing tube head, the upper end of the elastic expansion member abuts against the sealing tube head, and the sealing tube head abuts against the inner wall of the communicating tube in a sealing manner.

10. The precision controlled output hand pump in accordance with claim 9 wherein the resilient telescoping member is a spring.