CN2708048Y

CN2708048Y - Water flow regulator

Info

Publication number: CN2708048Y
Application number: CN 200320118778
Authority: CN
Inventors: 舒志新
Original assignee: Zhongshan Changqing Technology Development Co ltd
Current assignee: Chant Heating Technology (Zhongshan) Co., Ltd.
Priority date: 2003-11-29
Filing date: 2003-11-29
Publication date: 2005-07-06
Anticipated expiration: 2013-11-29

Abstract

The utility model provides a water flow regulator, comprising a regulating valve body. A channel, a water inlet, a water outlet and a water regulating seat are arranged in the regulating valve body. The center of the water regulating seat is provided with a screw which is connected with a water regulating axle. One end of the water regulating axle is connected with an electrical machine, and the other end is connected with an inner core whose outer end is sheathed with an outer core. The channel is provided between the outer core and the inner core. A cross baffle plate is sheathed on the inner core. The outer edge of the cross baffle plate is fastened in the inner side of the outer core and is fastened by a fastening ring. A sealing ring is arranged on the outer core. A spring is also sheathed on the regulating axle. One end of the spring is fastened on the water regulating seat, and the other end is contacted to one end of the outer core. Adopting the design of a multistage valve, the utility model decreases valve sealing force; the requirement of the torque moment of the electrical machine is correspondingly decreased, so the water flow regulator can adopt universal electrical machines, which realizes lower manufacturing cost, obtains the same sealing effect, and lifts the sealability and sensitivity of the regulator.

Description

A kind of water flow regulating device

[technical field]

The utility model relates to a kind of water flow regulating device, specifically relates to a kind of automatic constant-temperature gas instantaneous water heater water flow regulating device that is used for.

[background technique]

Existing automatic constant-temperature gas instantaneous water heater water flow regulating device, the design of employing single valve, because the normally higher influence of intake pressure, the bigger valve sealing force of general employing so, requires high to motor torque, need bigger load, particular arrangement, the cost of motor compares higher, also just causes the manufacture cost of constant temp gas fast water heater water flow regulating device higher.And water flow regulating device is very high to sealing and sensitivity requirement, and existing controlling device is difficult to reach high like this requirement.

[summary of the invention]

The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of and can reduce valve sealing force greatly, and motor torque is required to reduce relatively, can adopt general-purpose machine to realize low manufacture cost, reaches the water flow regulating device of effect same.

The purpose of this utility model is achieved in that

A kind of water flow regulating device, comprise regulation valve body, in regulation valve body, be provided with passage, water intake, water outlet, in regulation valve body, also be provided with the water transfer seat, central authorities at the water transfer seat establish screw thread, and with the water transfer axle that has been threaded, an end of water transfer axle links to each other with motor, the other end of water transfer axle is connected with inner core, the outer end of inner core is with outer core, is provided with passage between core and the inner core outside, is with the cross baffle plate on inner core, the outside of cross baffle plate is stuck in the inboard of outer core, and block by snap ring, core is provided with seal ring outside, also is with spring on adjusting axle, one end of spring is stuck on the water transfer seat, and the other end withstands on an end of outer core.

Aforesaid a kind of water flow regulating device is characterized in that an end of regulation valve body is fixed on the fixed base, is fixed with stepper motor at the other end of fixed base, and the motor shaft of stepper motor is connected with the water transfer axle by the hole on the fixed base,

Aforesaid a kind of water flow regulating device is characterized in that motor shaft is rectangular, and the end that the water transfer axle is connected with motor shaft is provided with rectangular opening, and motor shaft can be inserted in the rectangular opening, drives the water transfer axle and rotates.

Advantage of the present utility model is: because the utility model adopts multistage valve design, greatly reduce valve sealing force, motor torque is required to reduce relatively, can adopt general motor, realized low manufacture cost, reach the effect of same water shutoff, and promoted the sealing and the sensitivity of controlling device.

[description of drawings]

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the utility model water transfer axle construction schematic representation;

Fig. 3 is the utility model cross barrier structure schematic representation;

Fig. 4 is the utility model stepper motor structural representation.

[embodiment]

A kind of water flow regulating device, comprise regulation valve body 1, in regulation valve body 1, be provided with passage 2, and on regulation valve body 1, be provided with water intake 3, water outlet 4 also is provided with water transfer seat 5 in regulation valve body 1, establish screw thread in the central authorities of water transfer seat 5, with the water transfer axle 6 that has been threaded, can make water transfer axle 6 on water transfer seat 5, do axial motion.One end of water transfer axle 6 is connected with inner core 8 with screw 7, the outer end of inner core 8 is with outer core 9, be provided with path 10 between core 9 and the inner core 8 outside, on inner core 8, be with cross baffle plate 11, the outside of cross baffle plate 11 is stuck in the inboard of outer core 9, and block by snap ring 12, make cross baffle plate 11 can drive outer core 9 axial motions.Also be provided with seal ring 13 on the core 9 outside, when water transfer axle 6 drives inner cores 8 and outer core 9 to the water outlet 4 directions motion of regulation valve body 1, seal ring 13 sealed the water outlet 4 of regulation valve body 1.Also be with spring 14 on adjusting axle 6, an end of spring 14 is stuck on the water transfer seat 5, and the other end is stuck in an end of outer core 9.

One end of regulation valve body 1 is fixed on the fixed base 15, is fixed with stepper motor 16 at the other end of fixed base 15, and the motor shaft 17 of stepper motor 16 is connected with water transfer axle 6 by the hole on the fixed base 18.Rotate in order to make motor shaft 17 better drive water transfer axle 6, motor shaft 17 is designed to rectangular.

As shown in Figure 2, the end that water transfer axle 6 is connected with motor shaft 17 is provided with rectangular opening 19, and motor shaft 17 can be inserted in the rectangular opening 19, when motor shaft 17 rotates, drives water transfer axle 6 and rotates.

As shown in Figure 3, cross baffle plate 13 is cross, and is provided with hole 20 in central authorities, and cross baffle plate 11 is set on the inner core 8.

Working principle of the present utility model is: when water flow is maximum, just,

outer core

8,9 and the water outlet 4 of regulation valve body 1 between distance when being maximum, when stepper motor 16 dextrorotation are rotated, motor shaft 17 drives 5 dextrorotation of water transfer seat, under the effect of water transfer seat 5 screw threads, water transfer axle 6 moves to water outlet 4 directions vertically, drive seal ring 13, outer core 9, inner core 8, cross baffle plate 11, snap ring 12 moves to water outlet 4 directions vertically, contact with regulation valve body 1 up to seal ring 13, fluid passage 2 between seal ring 13 and the regulation valve body 1 is closed, at this moment, broken away between inner core 8 and the cross baffle plate 11, seal ring 13, outer core 9, cross baffle plate 11, snap ring 12 is motionless, rely on spring 14, with the space closure of 1 of seal ring 13 and regulation valve body, afterwards, stepper motor 16 continues dextrorotation and rotates, water transfer axle 6 continues motion to water outlet 4 directions vertically, and the path 10 between inner core 8 and the outer core 9 reduces gradually, like this, by constantly reducing flow channel 2, realize that water flow reduces;

Water flow increases process: minimum from water flow, during the left-handed rotation of stepper motor 16, it is left-handed that motor shaft 17 drives water transfer seat 5, under water transfer seat 5 threaded function, water transfer axle 6 is done motion in the other direction to water outlet 4 directions vertically, and at this moment, 11 of inner core 8 and cross plate washers are in disengaged position, path 10 between inner core 8 and the outer core 9 strengthens gradually, contacts with cross plate washer 11 up to inner core 8; Afterwards, stepper motor 16 continues left-handed rotation, water transfer axle 6 edges are to axially oppositely continuing to move to water outlet 4 directions, inner core 8 drive seal rings 13, outer core 8, cross plate washer 11, snap ring 12 are done reversing motion to water outlet 4 directions vertically, 1 passage 2 of outer core 9 and regulation valve body strengthens gradually, like this, by continuing to increase flow channel 10, realize that water flow increases.Increase and reduce water flow to realize multistage water shutoff and Guan Shui no matter be like this.

Claims

1, a kind of water flow regulating device, comprise regulation valve body (1), it is characterized in that in regulation valve body (1), being provided with passage (2), water intake (3), water outlet (4), in regulation valve body (1), also be provided with water transfer seat (5), central authorities at water transfer seat (5) establish screw thread, with the water transfer axle (6) that has been threaded, one end of water transfer axle (6) links to each other with motor, the other end of water transfer axle (6) is connected with inner core (8), the outer end of inner core (8) is with outer core (9), be provided with passage (10) between core (9) and the inner core (8) outside, on inner core (8), be with cross baffle plate (11), the outside of cross baffle plate (11) is stuck in the inboard of outer core (9), and block by snap ring (12), core (9) is provided with seal ring (13) outside, also is with spring (14) on adjusting axle (6), one end of spring (14) is stuck on the water transfer seat (5), and the other end withstands on an end of outer core (9).

2, a kind of water flow regulating device according to claim 1, an end that it is characterized in that regulation valve body (1) is fixed on the fixed base (15), the other end at fixed base (15) is fixed with stepper motor (16), and the motor shaft (17) of stepper motor (16) is connected with water transfer axle (6) by the hole on the fixed base (18).

3, a kind of water flow regulating device according to claim 1 and 2, it is characterized in that motor shaft (17) is rectangular, the end that water transfer axle (6) is connected with motor shaft (17) is provided with rectangular opening (19), and motor shaft (17) can be inserted in the rectangular opening (19), drives water transfer axle (6) and rotates.