CN2693191Y

CN2693191Y - Water toothpick current regulating device

Info

Publication number: CN2693191Y
Application number: CN 200420021233
Authority: CN
Inventors: 徐小枫
Original assignee: SHANGHAI WHITECAT SHAREHOLDING CO Ltd
Current assignee: Shanghai Maxam Daily Chemical Co., Ltd.
Priority date: 2004-03-24
Filing date: 2004-03-24
Publication date: 2005-04-20
Anticipated expiration: 2014-03-24

Abstract

The utility model relates to a water toothpick current regulating device which is an improved device of a current regulating part of a water toothpick which is a daily appliance for people. The current regulating device is formed by the combination of a valve core (2) and a valve seat (1), wherein, the end of the valve core (2) extends outside a regulating handle (3), and both sides of the valve seat (1) are provided with a water inlet and a water outlet pipes. The valve core (2) can rotate in a range of 90 DEG in a valve seat cavity of the valve seat (1). The radial radius of the valve core (2) gradually diminishes in the front 90 DEG interval, the diminished length is increased from zero to H, and the diminished height H is maintained within a range of an included angle alpha formed by the inlet and the outlet shaft centers of the rear section. The axial height of the flow passage is R, and the rectangular area formed by R multiplied by H is not smaller than the areas of round holes of a water inlet and a water outlet of the valve seat. The current regulating device is arranged on a handle of a spraying gun. The utility model has the advantages of simple structure, low cost, convenient operation, no flow-rate accidental fluctuation and high use safety.

Description

A kind of flow promoter regulator of device for washing teeth

(1) technical field under

This utility model is a kind of household electrical appliance, and people's articles for daily use especially relate to cleaning, the care implement of daily people to tooth---the flow promoter regulator of device for washing teeth.

(2) background technology

Known, the main structure of device for washing teeth is made up of parts such as tank bucket, motor, plunger displacement pump, flexible pipe, spray gun and current by-pass cockes.

Motor rotates, the actuation plunger pump is reciprocating, the reciprocating motion of plunger displacement pump produces pressure, water-soluble liquid in the tank bucket is extracted out, enter spray gun by flexible pipe,, cleanout fluid is sprayed from spray gun by the control of current by-pass cock, inject on the slit and gingiva of tooth, play cleaning teeth and the effect of nursing gingiva.

There is following deficiency in the device for washing teeth of prior art, in order to nurse the requirement of cleaning solution by the end user, opens spray gun pointedly, close spray gun again pointedly, need a switch that is easy to open and close, and be subjected to end user's wish, at will regulate the size and the pressure of emitted dose.

According to the retrieval and investigation, present adjusting device is divided into two classes: a class by-pass cock is configured on the body stand of device for washing teeth, though can regulate the size of flow, a hand-held spray gun, regulating and controlling switch on the other hand, operation inconvenience.Another kind of control set for adjusting is configured on the handle, and this adjusting device is made up of two parts, and parts are current-intercepting switches, can play the opening and closing effect; Another parts are adjusting devices of flow size.

The structure of prior-art devices flow regulator on handle is that valve seat and spool cooperate composition, the water inlet pipe and water outlet pipe of valve seat both sides is formed by small through hole, the center spool portion of rotation also offers a manhole, when the hole of hole on the valve seat and spool is relative, and the flow maximum.The manhole of spool is keyhole at present, rotary spool, and the flat hole of key will dwindle gradually with the valve seat small sircle hole and cooperate the cross section of fluid channel that forms long-pending, also promptly reduce the cleanout fluid flow, until last contract fully.There is the gap owing to rotating between spool and the valve support chamber, spool is at one section that matches with the valve seat intake-outlet, two rubber seal are arranged up and down, when spool is in the closed position, flushing liquor still has from the circumferential crack between two sealing rings up and down, flow to the phenomenon of outlet by water inlet, in order thoroughly to close flushing liquor, must press the current-intercepting switch of thoroughly cutting off the water supply and close this moment.This structure of being controlled by two functional units causes operation inconvenience, and makes the product structure complexity, and cost improves.And, be in closed condition at current-intercepting switch, and when flow regulator directly is not in the maximum stream flow angle between meaning, though can water outlet, one when opening current-intercepting switch, suddenly the flushing liquor of ejection maximum stream flow, make the end user produce unexpected scaring, even the damage oral cavity.

(3) summary of the invention

The purpose of this utility model is intended a kind of size that can regulate the spray gun current is provided, and is convenient to again manipulate, and is simple in structure, the flow promoter regulator that cost is low.

The purpose of this utility model is realized by following structure.

This flow promoter regulator is configured on the spray gun handle.

This flow promoter regulator still is made of spool and valve seat combination, and spool is installed in the valve support chamber, can carry out the rotations of 90 degree scopes, and the both sides of valve seat still be water inlet pipe and water outlet pipe, and water inlet pipe connects the flexible pipe of drawing from plunger displacement pump, and the direct and spray gun of outlet pipe joins.The axle center part of inlet tube and outlet tube is offered circular into and out of the water hole.

The spool that the utility model proposes, still edge is enclosed within the valve support chamber, but has changed the structure of spool, and cleanout fluid is not that the centre bore by spool flows into apopore from the inlet opening of valve seat, but the passage that forms behind the spool peripheral distortion of flowing through enters apopore.Its structure is to change at the cylindrical radially radius of spool, the interval radius of pro-90 degree diminishes gradually, the length that reduces is by zero clearance height that forms through hole during to maximum stream flow, at the later fan-shaped range of 90 degree, promptly import and export in the angular range that the axle center forms, remain on 90 radiuses that reduce height when spending.This cleanout fluid runner is at axial height, and reduces the highly rectangular area of formation at 90 degree position radiuses radially, more than or equal to the area of valve seat upper intake circular hole.

Because spool is to become radius, therefore, in the spool original position, promptly the position that matches with zero degree and valve seat water inlet can be prepared spool and valve seat quite tight, has blocked water inlet this moment fully, do not have flushing liquor to flow out, save current-intercepting switch parts of the prior art from outlet.

When spool rotates gradually, along with reducing gradually of spool radius, it is big that the gap between spool and valve support chamber becomes, flushing liquor has also strengthened the flow that flows to outlet from water inlet gradually, make gun slot can obtain gradual change big water spray pressure and flow, when reaching 90 degree positions, spray gun can obtain maximum stream flow.

This utility model is simple in structure, and cost is low, uses easy to operately, does not need other current-intercepting switch, also just the fortuitous event that suddenly big flow sprays can not occur, and has improved safety, the comfortableness used.

(4) description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the main TV structure cutaway view of this utility model flow promoter regulator, is in the cutaway view of contract fully position when spool.

Fig. 2 is the main TV structure cutaway view of this utility model flow promoter regulator, is in the cutaway view of maximum stream flow position when spool.

Fig. 3 is the plan structure cutaway view of this utility model flow promoter regulator.

Fig. 4 is the main TV structure cutaway view of prior art flow promoter regulator.

Fig. 5 is the plan structure cutaway view of prior art flow promoter regulator.

(5) specific embodiment

In Fig. 1, this flow promoter regulator is still constituted by spool (2) and valve seat (1), after spool (2) inserts the valve support chamber of valve seat (1), a regulating handle (3) is stretched out in the end, promote this regulating handle (3) for the pusher button on the spray gun handle, change the angle position of spool (2) in valve support chamber and use.Spool (2) has two rubber seal (4) up and down at one section that matches with valve seat (1) intake-outlet.

There is the inlet tube and outlet tube of garden tee section the both sides of valve seat (1), and water inlet pipe connects the flexible pipe of drawing from plunger displacement pump, outlet pipe directly and spray gun join.Spool (2) can carry out the rotation of 90 degree scopes in the valve support chamber of valve seat (1).The radially radius length of spool (2) changes, the interval radius of pro-90 degree diminishes gradually, and the length that reduces forms the clearance height H of through hole when increasing to maximum stream flow by zero, at back segment, be in the angle α scope of import and export axle center formation, keep reducing the radius of clearance height H.This runner is R at axial height, makes R multiply by the rectangular area of H, more than or equal to the sectional area of valve seat (1) intake-outlet circular hole.

Fig. 1, when spool (2) in original position when the valve support chamber water inlet, spool (2) has been blocked the water inlet of valve seat (1) fully, spray gun does not have flushing liquor and flows out.

When spool (2) rotates gradually, along with reducing gradually of spool (2) radius, it is big that gap between spool (2) and valve support chamber becomes, flushing liquor has also strengthened the flow that flows to outlet from water inlet gradually, make gun slot can obtain gradual change big water spray pressure and flow, Fig. 2, when spool (2) rotated to 90 degree positions, spray gun obtained maximum stream flow.

Claims

1. the flow promoter regulator of a device for washing teeth, constitute by spool (2) and valve seat (1), spool (2) inserts valve seat (1), spool (2) is at one section that matches with valve seat (1) intake-outlet, two rubber seal (4) are arranged up and down, a regulating handle (3) is stretched out in the end of spool (2), the both sides of valve seat (1) have into, outlet pipe, it is characterized in that, the radially radius pro-90 degree intervals of spool (2) diminish gradually, and the length that reduces when relative with valve seat (1) water inlet original position is zero, increases to H when 90 spend, in back segment valve seat (1) is imported and exported the angle α scope of axle center formation, the radius of spool (2) keeps reducing height H, reduces in the scope that radius forms runner at whole section, and axial height is R, make R multiply by the area that H forms rectangularl runner, more than or equal to the sectional area of valve seat intake-outlet circular hole.

2. according to the flow promoter regulator of the described a kind of device for washing teeth of claim 1, it is characterized in that this flow promoter regulator is configured on the spray gun handle.