Movable pump with good plugging effect

Abstract

The utility model discloses a movable pump with good plugging effect, which comprises a pump body, the lower end of the pump body is provided with a liquid inlet channel, a valve body is arranged in the liquid inlet channel in a sliding way, the pump body is internally provided with a pushing piece which is used for pushing the valve body to move downwards and is of a hollow structure, the pushing piece is internally provided with a sealing ring, the upper end of the valve body penetrates through the sealing ring, and the lower end of the valve body penetrates through the sealing ring. The diameter of the upper end of the valve body is larger than the inner diameter of the sealing ring, a lower reset piece used for pushing the valve body upwards is installed between the lower end of the valve body and the liquid inlet channel, the pushing piece is pressed downwards to push the valve body to slide downwards, resetting of the lower reset piece and pulling of the sealing ring enable the valve body to ascend, and forced plugging is achieved through external force. The response speed and the sealing performance of the one-way valve are improved, and the situation that the one-way valve cannot be normally used due to insufficient elasticity or insufficient gravity is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pump head for pumping liquid, especially a pump with good movable plugging effect. BACKGROUND

[0002] The existing one-way valve for the pump head generally adopts the diaphragm type or the ball valve type, when liquid is discharged, the liquid in the bottle pushes away the diaphragm or the plugging ball, so that the one-way valve is opened, when liquid is not discharged (such as when the gas in the pump body is discharged), the diaphragm or the plugging ball controls the opening or closing of the one-way valve through the elastic force or the self gravity, if the elastic force is insufficient or the self gravity is not enough, the one-way valve cannot be normally opened or closed. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides a pump with good movable plugging effect.

[0004] The utility model discloses the technical scheme that solves its technical problem is:

[0005] A pump with good movable plugging effect, including the pump body, the lower extreme of pump body is provided with the liquid inlet channel, the liquid inlet channel inside sliding installation has the valve body, be provided with the hollow structure's pusher for pushing the valve body and move down in the pump body, the inside of pusher is provided with the sealing ring, the upper end of valve body passes through the sealing ring, and the upper end diameter of valve body is greater than the inside diameter of sealing ring, be installed with the lower resettable spare for pushing the valve body upwards between the lower extreme of valve body and the liquid inlet channel.

[0006] The lower end of the pusher is provided with a first spring sheet for pushing the valve body and the sealing ring.

[0007] The valve body is composed of a lower plugging part, an upper plugging part, and a connecting rod connecting the lower plugging part and the upper plugging part. The bottom surface of the lower plugging part and the upper plugging part is an arc surface.

[0008] The lower resettable spare is a hollow pipe structure, and the end face of the lower resettable spare is provided with a second spring sheet for separating the lower resettable spare and the lower plugging part.

[0009] The lower end of the lower plugging part is provided with a plug-in part, and the plug-in part is plugged into the lower resettable spare.

[0010] The sealing ring is a reverse conical structure with a diameter gradually decreasing from top to bottom. The smallest diameter of the sealing ring is smaller than the diameter of the upper plugging part.

[0011] The diameter of the valve body is smaller than the diameter of the liquid inlet channel.

[0012] The utility model discloses a beneficial effect is: the utility model discloses the lower end of pump body is provided with the liquid inlet channel, and the valve body is slidably installed in the liquid inlet channel, and the hollow structure's pusher for promoting the valve body to move down is arranged in the pump body, and the inside of pusher is provided with the sealing ring, and the upper end of valve body passes through the sealing ring, and the upper end diameter of valve body is greater than the inside diameter of sealing ring, and the lower end of valve body and liquid inlet channel between install the lower reset piece for promoting the valve body to go up, and through the pusher and push the valve body to slide down, and the reset of lower reset piece and the pull of sealing ring, make the valve body rise, and through the external force forcibly block, improve the response speed, the leakproofness of check valve, avoid the situation that check valve can not normally use because of the insufficient elastic force or the insufficient gravity of itself etc. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model is further illustrated below in combination with the drawings and examples.

[0014] Figure 1 It is the structure diagram of the utility model;

[0015] Figure 2 It is one of the use state diagram of the utility model;

[0016] Figure 3 It is the use state diagram of the utility model two. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further illustrated in detail below in combination with specific implementation ways and referring to the drawings, and it is to be explained that the embodiment of the utility model and the feature in the embodiment in the utility model can be combined mutually in the case of not conflicting.

[0018] It is understood that these descriptions are only exemplary, and not to limit the scope of the utility model.

[0019] Some embodiments of the utility model are described below in combination with the drawings to provide a kind of.

[0020] Refer to Figures 1-3The utility model provides a pump with good sealing effect, which comprises a pump body 1, a liquid inlet channel 4 arranged at the lower end of the pump body 1, a valve body 5 slidably arranged in the liquid inlet channel 4, a hollow pusher 6 arranged in the pump body 1 and used for pushing the valve body 5 to move downwards, a sealing ring 7 arranged in the pusher 6, the upper end of the valve body 5 penetrating through the sealing ring 7, the upper end of the valve body 5 having a diameter greater than the inner diameter of the sealing ring 7, a lower reset member 3 arranged between the lower end of the valve body 5 and the liquid inlet channel 4 and used for pushing the valve body 5 upwards, the valve body 5 being pushed to slide downwards by the pusher 6, the valve body 5 being lifted by the reset of the lower reset member 3 and the pulling of the sealing ring 7, and the response speed and sealing property of the one-way valve being improved by forcibly sealing with external force, so that the one-way valve cannot be normally used due to insufficient elastic force or insufficient gravity.

[0021] The lower end of the pusher 6 is provided with a first elastic sheet 12 used for pushing the valve body 5 to abut against the sealing ring 7, the valve body 5 is composed of a lower sealing part 8, an upper sealing part 9 and a connecting rod 10 connecting the lower sealing part 8 and the upper sealing part 9, the bottom surface of the lower sealing part 8 and the upper sealing part 9 is an arc surface, the lower reset member 3 is a hollow pipe structure, the end surface of the lower reset member 3 is provided with a second elastic sheet 13 used for separating the lower reset member 3 from the lower sealing part 8, the lower end of the lower sealing part 8 is provided with a plug-in part 11, and the plug-in part 11 is plugged into the lower reset member 3.

[0022] The product can be applied to a lotion pump (as shown in Figure 1 , a structure schematic diagram of the lotion pump), which comprises a pressing head 2, a suction pipe and other structures, wherein the pusher 6 and the pressing head 2 are an integral structure, the pusher 6 is a part of the lotion channel of the pressing head 2, the lower reset member 3 is a part of the suction pipe, further, the upper end of the suction pipe is the lower reset member 3, when the pressing head 2 is pressed, the suction pipe is bent downwards to generate elastic force, when the pressing head 2 is released, the suction pipe is reset to be straight, so as to push the valve body 5 to move upwards (a sealing structure is arranged between the suction pipe and the liquid inlet channel 4, so that even if the suction pipe moves up and down, the air tightness will not be affected, such as a sealing ring), and the structure of the lotion pump is described below.

[0023] Reference Figure 2, initial state, the lower end of the first elastic sheet 12 and the lower end of the lower blocking part 8, and the first elastic sheet 12 is extruded by the valve body 5 to produce deformation (i.e. at this time the first elastic sheet 12 has elastic force), at this time the upper blocking part 9 and the sealing ring 7 are separated to form an upper liquid outlet 14, the lower end of the insert part 11 and the second elastic sheet 13 (the second elastic sheet 13 is transversely arranged at the upper end surface of the suction pipe, such as at least one second elastic sheet 13 arranged in the diameter direction, or arranged in a mesh structure), and the insert part 11 extrudes the second elastic sheet 13 to deform, until the arc surface of the lower blocking part 8 and the suction pipe are in contact, at this time the suction pipe is blocked.

[0024] Press the press head 2 to push the valve body 5 to move downward synchronously, the air in the pump body is discharged through the upper liquid outlet 14, the suction pipe is pushed synchronously to bend and produce deformation, thereby having elastic force (the elastic force is the restoring force of the press head 2); refer to Figure 3 , release the press head 2, first, the first elastic sheet 12 resets (at this time, because the press head 2 has space to move upward, the first elastic sheet 12 can stretch to reset), push the lower blocking part 8 to separate from the pusher 6, so that the upper blocking part 9 and the sealing ring 7 are in contact, thereby blocking the upper liquid outlet 14, second, the second elastic sheet 13 resets, pushing the insert part 11 to separate from the suction pipe, so that the lower blocking part 8 and the suction pipe form a lower liquid outlet 15, finally, the suction pipe stretches to reset, pushing the valve body 5 and the press head 2 to reset as a whole (when the suction pipe is completely reset, the press head 2 has no space to move upward, and the lower blocking part 8 extrudes the first elastic sheet 12 to produce deformation), at the same time, the liquid in the bottle enters the pump body 1 through the suction pipe and the lower liquid outlet 15, and pressing the press head 2 again can discharge the liquid (in fact, the reset actions of the first elastic sheet 12, the second elastic sheet 13 and the suction pipe are performed simultaneously, but the first elastic sheet 12 and the second elastic sheet 13 complete the action faster, i.e. after the suction pipe resets a small distance, the one-way valve has completed the switching).

[0025] Further, the first elastic sheet 12 and the second elastic sheet 13 reset on the premise that the press head 2 has space to move upward, when the press head 2 has no space to move upward, the suction pipe pushes the valve body 5 to move upward until the first elastic sheet 12 and the second elastic sheet 13 are extruded to produce deformation, at this time it is the initial state, the lower end of the lower blocking part 8 and the suction pipe are in contact, the lower liquid outlet 15 is closed, the upper blocking part 9 and the sealing ring 7 are separated, and the upper liquid outlet 14 is opened.

[0026] When the first elastic sheet 12 is reset to be straight, the lower end surface of the first elastic sheet 12 is abutted with the upper end surface of the lower blocking part 8, and the outer side of the upper end of the lower blocking part 8 is provided with a chamfer structure, so that the flowability of the lower blocking part 8 extruding the first elastic sheet 12 to deform is improved.

[0027] The sealing ring 7 is a reverse conical structure with the diameter gradually reducing from top to bottom, the minimum diameter of the sealing ring 7 is smaller than the diameter of the upper blocking part 9, and the side wall of the sealing ring 7 is an arc surface structure, so that the fitting effect with the upper blocking part 9 is further improved, and the sealing performance is improved.

[0028] The diameter of the valve body 5 is smaller than the diameter of the liquid inlet channel 4, further, the diameter of the lower blocking part 8 is smaller than the diameter of the liquid inlet channel 4, and the space between the liquid inlet channel 4 and the lower blocking part 8 is a channel for liquid flow, so that after the liquid flows out of the suction pipe, the liquid can pass through the channel and the lower blocking part 8 to enter the pump body 1.

[0029] The valve body 5 and the pump body 1 can be two independent components or can be integrally injection molded, the side wall of the lower blocking part 8 and the upper end of the liquid inlet channel 4 are connected through a plurality of connecting points, when the pressing head 2 is installed, the connecting points are pushed apart, so that the valve body 5 and the pump body 1 are separated.

[0030] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "mounting", "connecting", "connection", "fixing" and the like should be interpreted broadly, for example, "connection" can be fixed connection, detachable connection or integrally connected; "connection" can be direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] It should be noted that when an element is referred to as "assembled with", "mounted with", "fixed with" or "provided with" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0032] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0033] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A pump with good sealing effect, comprising a pump body (1), characterized in that The lower end of the pump body (1) is provided with a liquid inlet channel (4), a valve body (5) is slidably installed in the liquid inlet channel (4), a hollow pusher (6) for pushing the valve body (5) to move downward is arranged in the pump body (1), the inside of the pusher (6) is provided with a sealing ring (7), the upper end of the valve body (5) penetrates through the sealing ring (7), the upper end diameter of the valve body (5) is greater than the inner diameter of the sealing ring (7), and a lower reset member (3) for pushing the valve body (5) upward is arranged between the lower end of the valve body (5) and the liquid inlet channel (4).

2. The pump of claim 1, wherein The lower end of the pusher (6) is provided with a first elastic sheet (12) for pushing the valve body (5) to abut against the sealing ring (7).

3. The pump of claim 1, wherein The valve body (5) is composed of a lower blocking part (8), an upper blocking part (9) and a connecting rod (10) connecting the lower blocking part (8) and the upper blocking part (9), and the bottom surface of the lower blocking part (8) and the upper blocking part (9) is an arc surface.

4. The pump of claim 3, wherein The lower reset member (3) is a hollow pipe structure, and the end surface of the lower reset member (3) is provided with a second elastic sheet (13) for separating the lower reset member (3) from the lower blocking part (8).

5. The pump of claim 4, wherein The lower end of the lower blocking part (8) is provided with a plug-in part (11) which is plugged into the lower reset member (3).

6. The pump of claim 3, wherein The sealing ring (7) is a reverse conical structure with a diameter gradually decreasing from top to bottom, and the minimum diameter of the sealing ring (7) is smaller than the diameter of the upper blocking part (9).

7. The pump of claim 1, wherein The diameter of the valve body (5) is smaller than the diameter of the liquid inlet channel (4).

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