CN210422981U

CN210422981U - Anti-leakage internal circulation plunger pump

Info

Publication number: CN210422981U
Application number: CN201921433811.5U
Authority: CN
Inventors: 李海
Original assignee: Shenzhen Haina Sike Technology Co ltd
Current assignee: Shenzhen Haina Sike Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-04-28
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a prevent leaking inner loop plunger pump, including connecting rod (1), special-shaped seal cover (2), piston (3), the pump body (4), go into water swivel (7), nozzle holder (10), nozzle cover (12), wherein, the one end of connecting rod (1) is packed into in piston (3), special-shaped seal cover (2) sealing suit is in the bottom of the pump body (4), piston (3) are being carried in connecting rod (1) and are passing special-shaped seal cover together, seal connecting rod (1) and piston seal simultaneously with connecting rod (1) and in being fixed in the pump body (4) through special-shaped seal cover (2), go into water swivel (7) and the pump body (4), first valve block (5) are connected in the side. The utility model discloses it is small, the water of leakage can the inner loop, thereby waterproof performance makes product life extension more excellent than the product on the market, through the outside special-shaped seal cover of connecting rod, can accomplish the installation of connecting rod and can realize waterproof sealing again, has simplified the structure, designs more rationally.

Description

Anti-leakage internal circulation plunger pump

Technical Field

The utility model relates to an electric toothbrush field, concretely relates to prevent leaking inner loop plunger pump.

Background

The traditional hand-held tooth flushing device is short in service life, and the machine is scrapped in advance due to the fact that water easily leaks in the machine, and the reason is that a pump body piston cannot be abraded and leaks water.

Disclosure of Invention

The utility model aims to solve the technical problem that a prevent leaking inner loop plunger pump can effectively solve not enough among the prior art.

The utility model discloses a realize through following technical scheme: the utility model provides a prevent leaking inner loop plunger pump, includes connecting rod, special-shaped seal cover, piston, the pump body, goes into water swivel, nozzle holder, nozzle sleeve, and wherein, the one end of connecting rod is packed into in the piston, and special-shaped seal cover packing is in the bottom of the pump body, and the connecting rod carries the piston to pass special-shaped seal cover together, seals connecting rod and piston through special-shaped seal cover seal connecting rod and is fixed in the pump body simultaneously, goes into water swivel and the pump body, first valve block and connects in the side, nozzle holder, second valve block are connected at pump body top.

As a preferred technical scheme, a first sealing ring is arranged between the water inlet joint and the pump body.

Preferably, a second sealing ring is sleeved at the bottom of the nozzle seat for sealing, and a third sealing ring is arranged between the nozzle sleeve and the nozzle seat for sealing.

As a preferable technical scheme, the pump body is communicated with a drainage hole and reflows to the pump body through the drainage hole, and the internal circulation pump water is automatically reflowed and formed under the condition that the pump body leaks.

The utility model has the advantages that: the utility model discloses it is small, the water of leakage can the inner loop, thereby waterproof performance makes product life extension more excellent than the product on the market, through the outside special-shaped seal cover of connecting rod, can accomplish the installation of connecting rod and can realize waterproof sealing again, has simplified the structure, designs more rationally.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of a leak-proof internal circulation plunger pump of the present invention;

FIG. 2 is a schematic view of the water flow direction and drainage of the present invention;

fig. 3 is a schematic diagram of the internal structure of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and 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, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 3, the leakage-proof internal circulation plunger pump comprises a connecting rod 1, a special-shaped sealing sleeve 2, a piston 3, a pump body 4, a water inlet joint 7, a nozzle holder 10 and a nozzle sleeve 12, wherein the connecting rod 1, the piston 3 and the special-shaped sealing sleeve 2 are connected together and then connected with the pump body 4 through the special-shaped sealing sleeve 2, the water inlet joint 7, the pump body 4 and a first valve plate 5 are connected to the side, and the nozzle holder 10, the nozzle sleeve 12 and a second valve plate 8 are connected to the top of the pump body 4.

Wherein, install first sealing washer 6 between income water swivel 7 and the pump body 4. The bottom of the nozzle holder 10 is sleeved with a second sealing ring 9 for sealing, and a third sealing ring 11 is arranged between the nozzle sleeve 12 and the nozzle holder 10 for sealing.

The pump body is communicated with the drainage hole and reflows to the pump body through the drainage hole, and the internal circulation pump water is formed by automatic reflowing under the condition that the pump body leaks.

When the connecting rod is driven by power to reciprocate back and forth, the piston 3 reciprocates along with the connecting rod 1, air in the pump body 4 forms negative pressure, water enters the pump body 4 through the water inlet connector 7, the first valve plate and the second valve plate are arranged between the water inlet connector 7 and the nozzle seat 10 and the pump body 4, the first valve plate is closed between the water inlet connector 7 and the nozzle seat 10 along with the forward movement of the piston 3, the second valve plate is opened between the nozzle seat 10, water flow enters the nozzle sleeve 12 through the nozzle seat 10, and then the water flow is discharged out of the machine through the nozzle, sealing rings are arranged between the nozzle seat 10 and the pump body 4 and the nozzle sleeve 12, and sealing rings are arranged between the water inlet connector 7 and the nozzle seat. The traditional tooth flushing device only enables water not to leak into the machine through interference fit between the piston and the inner wall of the pump body, and the pump body is communicated with the drainage hole and connected with the pump body through the drainage hole in a return mode, so that the water automatically flows back under the condition that the pump body leaks obliquely. Forming the internal circulation pump water.

The drain hole is arranged at the position of the inlet channel of the pump body, the connecting rod is provided with a special-shaped sealing sleeve 2, one end of the sealing sleeve is sleeved on the connecting rod, and the other end of the sealing sleeve is sleeved on the pump body, so that the sealing ring is characterized by being frustum-shaped in order to ensure the service life of the sealing ring. When the piston reaches the service life failure, the leakage water flows into the bottom sealing sleeve, and when the piston reciprocates, the leakage water flows are communicated with the drain hole and flow back to the pump body to form the internal circulation pump water.

The utility model has the advantages that: the utility model discloses it is small, the water of leakage can the inner loop. The waterproof performance is more excellent than that of products on the market, so that the service life of the products is prolonged.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A leak-proof internal circulation plunger pump, characterized in that: including connecting rod (1), dysmorphism seal cover (2), piston (3), the pump body (4), go into water swivel (7), nozzle holder (10), nozzle cover (12), wherein, the one end of connecting rod (1) is packed into in piston (3), the sealed suit of dysmorphism seal cover (2) is in the bottom of the pump body (4), piston (3) are being carried in connecting rod (1) and are passing dysmorphism seal cover (2) together, seal connecting rod (1) through dysmorphism seal cover (2) and seal connecting rod (1) and piston (3) simultaneously and be fixed in pump body (4) sealedly, go into water swivel (7) and connect in the side with pump body (4), first valve block (5), nozzle holder (10), nozzle cover (12), second valve block (8) are connected at pump body (4) top.

2. A leak resistant internal circulation plunger pump as set forth in claim 1, wherein: and a first sealing ring (6) is arranged between the water inlet joint (7) and the pump body.

3. A leak resistant internal circulation plunger pump as set forth in claim 1, wherein: the bottom of the nozzle seat (10) is sleeved with a second sealing ring (9) for sealing, and a third sealing ring (11) is arranged between the nozzle sleeve (12) and the nozzle seat (10) for sealing.

4. A leak resistant internal circulation plunger pump as set forth in claim 1, wherein: the pump body (4) is internally communicated with a drainage hole and reflows to the pump body (4) through the drainage hole, and the water automatically reflows and forms internal circulation pump water under the condition that the pump body (4) leaks.