CN202195140U

CN202195140U - Insert injection moulding valve

Info

Publication number: CN202195140U
Application number: CN2011203035127U
Authority: CN
Inventors: 欧健
Original assignee: 欧健
Current assignee: Chongqing Zhongtian Electromechanical Technology Co., Ltd.
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2012-04-18
Anticipated expiration: 2021-08-19

Abstract

The utility model provides an insert injection moulding valve, which is formed by combining advantages of different materials and comprises an injection moulded valve body, a gate plate sealing sleeve, a valve rod and a gate plate, wherein the upper part of the valve body is connected with the lower end of the gate plate sealing sleeve. The insert injection moulding valve is characterized in that the valve body is provided with a valve base insert which is inserted in the injection moulding; the gate plate sealing sleeve is provided with an axial nested insert which is inserted in the injection moulding; the lower end of the valve rod passes through a spiral locating ring and is spirally connected with the gate plate; the upper end of the valve rod is a corner top; the corner top passes through the axial nested insert and is positioned in the lower cavity of a sealing cover; the insert injection moulding valve disclosed by the utility model has the advantages of low material and manufacture cost, high manufacture efficiency, difficulty in leakage, and convenience in installation; and, when the insert injection moulding valve is used in conjunction with a drip-proof integral valve, a water meter then has the functions of preventing auto-rotation and metering micro-flow.

Description

Inserts injection moulding valve

Technical field

The utility model relates to a kind of valve.

Background technique

At present, the valve of using on the pipeline adopts copper product to make more, and cost of material is high, and fabricating cost is high, and it is lower to make efficient, and the interface section is prone to leak during installation.

Summary of the invention

The purpose of the utility model is for solving above-mentioned existing technology defective, and the utility model provides a kind of different materials advantage and the inserts injection moulding valve that is combined into is realized good airproof performance separately of utilizing; Easy for installation; The economical with materials cost reduces manufacture cost, the purpose of enhancing productivity.Cooperate the leakage-proof integral valve to use the function that water meter has anti-rotation function and micrometeor is measured.

The technological scheme that the utility model adopts is such, and promptly a kind of inserts injection moulding valve comprises the valve body and the flashboard big envelope of molding and forming, and valve rod and flashboard, and wherein valve body top is connected with flashboard big envelope lower end; It is characterized in that: said valve body has the valve-seat insert piece that when molding and forming, embeds, and said flashboard big envelope has the nested inserts of axle that when molding and forming, embeds; Said valve rod lower end is passed the spiral positioning circle and is connected with flashboard, and the upper end of valve rod is passed the nested inserts of axle and is positioned at the chamber under the capping of flashboard big envelope.

The utility model is owing to said structure has that the cost of material is low, low cost of manufacture, manufacturing efficient are high; Be difficult for leaking, convenient installation, the upper end of said valve rod is the dihedral top; Need private key could accomplish the switching operation of valve, thereby can avoid other people arbitrarily to open and close valve.

Further; The inlet side that goes out end connection leakage-proof integral valve of the said valve body of the utility model; The inlet side inner chamber of said leakage-proof integral valve is equipped with valve with pressure reduction integration cover, and the integration cover is sealed and matched with the spool formation Dynamic Elastic that stage clip supports, and the valve core rod of said spool passes the center hole with the integrated leading truck of valve body; Have dump tank in the said center hole, stage clip is between spool and leading truck; Said valve has the front ring gear and back gear ring that cross section is the monocline profile of tooth with pressure reduction integration cover; Has the integration chamber between the said forward and backward gear ring; On the circular cone of back gear ring, have raised line or/and salient point, the circular cone of said front ring gear has the gradient that can be sealed and matched with the spool inner cone.

Above-mentioned leakage-proof integral valve and valve are used, can prevent that sealing metrological service when water clock does not measure.When the leakage-proof integral valve was connected use with metrological service, because said structure can be in the moment that sealing state finishes, fluid produced the peak value surge, and the direct impact metre measuring mechanism of propagation of pressure produces it and counts, thereby improved the sensitivity of metrological service; When the terminal tap is closed when water (not); Because the ductwork pressure fluctuation, valve left side cavity pressure can be passed to right chamber, under the unidirectional non-return effect of valve with pressure reduction integration cover; Increase gradually behind the right cavity pressure P2 absorption peak pressure; As P2>during P1, pressure surge just can not be passed to left chamber again, thus avoid causing metrological service's idle running.

The cost of material is low for the utility model, low cost of manufacture, manufacturing efficient high.Interface section, valve body two ends has expansibility, valve is in use had be difficult for leaking convenient installation.In addition, leading truck and valve body is one-body molded, can reduce assembly process, raise the efficiency; And the center line that guarantees leading truck is consistent with the valve body center line, has improved accuracy of manufacturing.Meanwhile, the dump tank that is arranged in the leading truck center hole can be got rid of the impurity of water, makes normally return of spool, and proportioning valve normally plays a role with pressure reduction integration cover.The utility model cooperates the leakage-proof integral valve to use the function that makes water meter have anti-rotation function and micrometeor is measured.

Description of drawings

Fig. 1 is the structure sectional view of the utility model, also is the valve closing phase diagram;

Fig. 2 is the structure sectional view of valve with pressure reduction integration cover;

Fig. 3 is the user mode reference drawing of main valve among the embodiment;

Among the figure: A-integration chamber; The B-main valve; C-leakage-proof integral valve; The 1-front ring gear; Gear ring behind the 2-; 3-front ring gear circular cone; Gear ring circular cone behind the 4-; 5-raised line or salient point; The 9-capping; 10-flashboard big envelope; The nested inserts of 11-axle; 12-spiral positioning circle; The 13-leading truck; The 14-valve body; The 15-spool; The 16-packing ring; The 17-valve is with pressure reduction integration cover; The 18-flashboard; The 19-valve-seat insert piece; The 20-valve rod; The 21-stage clip; The 22-inner cone; The 23-rear cone.

Embodiment

Below the embodiment of the indefiniteness that provides through accompanying drawing the utility model is further specified.

Referring to accompanying drawing, the inserts injection moulding valve among the figure comprises the valve body 14 and flashboard big envelope 10 of molding and forming, and valve rod 20 and flashboard 18, and wherein valve body 14 tops are connected with flashboard big envelope 10 lower ends; It is characterized in that: said valve body 14 has the valve-seat insert piece 19 that when molding and forming, embeds, and said flashboard big envelope 10 has the nested inserts 11 of axle that when molding and forming, embeds; Said valve rod 20 lower ends are passed spiral positioning circle 12 and are connected with flashboard 18, and the upper end of valve rod 20 is passed the nested inserts 11 of axle and is positioned at the chamber under the capping 9 of flashboard big envelope 10.

Said inserts is that metal or nonmetal anticorrosive high-abrasive material are processed, and the anticorrosive high-abrasive material of said metal is selected from copper, stainless steel or chrome faced metal; Said nonmetal anticorrosive high-abrasive material is a pottery.

Said valve rod 20 is processed for copper or stainless steel with flashboard 18.

Above-mentioned valve rod 20 is equipped with can the close-fitting seal ring of nested inserts 11 inwalls with axle.

Said spiral positioning circle 12 have with flashboard big envelope 10 on the close-fitting outside thread of internal thread.

The upper end of said valve rod 20 is the dihedral top.

In an embodiment, the end that goes out of said valve body 14 is connected with the inlet side of leakage-proof integral valve C; The inlet side inner chamber of said leakage-proof integral valve C is equipped with valve with pressure reduction integration cover 17; The integration cover is sealed and matched with the spool 15 formation Dynamic Elastic that stage clip 21 supports; The valve core rod of said spool 15 passes the center hole with the integrated leading truck 13 of valve body; Have dump tank in the said center hole, stage clip 21 is between spool 15 and leading truck 13; Said valve has the front ring gear 1 and back gear ring 2 that cross section is the monocline profile of tooth with pressure reduction integration cover 17; Has integration chamber A between the said forward and backward gear ring; On the circular cone 4 of back gear ring, have raised line or/and salient point 5, the circular cone 3 of said front ring gear has the gradient that can be sealed and matched with spool inner cone 22.

The described main valve B of the utility model can be used with leakage-proof integral valve C, also can take the back apart and use separately.When main valve B was done to use separately, it had independent valve opening and closing function; When leakage-proof integral valve C and main valve B were used, valve integral body had preventing autorotation of water meter function and micrometeor metering function.

Among the embodiment who provides like Fig. 3, the inlet side of main valve B is connected with the water inlet pipe fitting, goes out to hold to be connected, have the switching function of independent valve with the water outlet pipe fitting.

The working principle of the utility model is such: open capping 9, utilize the dihedral top of instrument rotation valve rod 20, the flashboard 18 that valve rod upwards drives the bottom connection moves up; Valve forms pressure difference with valve two chambeies that pressure reduction integration cover 17 separates; Spool 15 moves to integration chamber A to the right chamber of valve, and along with the increase gradually of left cavity pressure P1, rear cone 23 contacts of spool 15 are expressed to valve makes gear ring 2 generation deformation in back until spool 15 is passed through with the back gear ring 2 of pressure reduction integration cover 17; Spool 15 from the back gear ring 2 elasticity through the back rapidly with 17 disengagings of integration cover; Flowing water is gushed out from the space of spool 15 with integration cover 17, forms the peak value surge, and water meter is rotated; Cavity pressure P1 descends when a valve left side, and spool 15 moves to back gear ring circular cone 4 to feed-water end under the effect of stage clip 21, and the raised line on the back gear ring circular cone is or/and salient point 5 formation gap when contacting with spool inner cone 14; Thereby help left cavity pressure drain charge to right chamber; Cavity pressure P1 equals right cavity pressure P2 when a valve left side, and under the effect of spring force F, spool 15 passes back gear ring 2 and closely contacts with front ring gear circular cone 3; Get back to original state, wait for next circulation.

In the said structure, spool 15 rests on and waits for integration in the A of integration chamber in the process of moving to right, and increases gradually with left cavity pressure P1, and 23 extruding back gear ring 2 distortion of spool rear cone form the Dynamic Elastic sealing.

Claims

1. inserts injection moulding valve comprises the valve body (14) and the flashboard big envelope (10) of molding and forming, and valve rod (20) and flashboard (18), and wherein valve body (14) top is connected with flashboard big envelope (10) lower end; It is characterized in that: said valve body (14) has the valve-seat insert piece (19) that when molding and forming, embeds, and said flashboard big envelope (10) has the axle nested inserts (11) that when molding and forming, embeds; Said valve rod (20) lower end is passed spiral positioning circle (12) and is connected with flashboard (18), and the upper end of valve rod (20) is passed the nested inserts of axle (11) and is positioned at the chamber under the capping (9) of flashboard big envelope (10).

2. inserts injection moulding valve according to claim 1 is characterized in that: said inserts is that metal or nonmetal anticorrosive high-abrasive material are processed, and the anticorrosive high-abrasive material of said metal is selected from copper, stainless steel or chrome faced metal; Said nonmetal anticorrosive high-abrasive material is a pottery.

3. inserts injection moulding valve according to claim 1 is characterized in that: said valve rod (20) and flashboard (18) are processed for copper or stainless steel.

4. according to claim 1 or 3 described inserts injection moulding valves, it is characterized in that: said valve rod (20) is equipped with can the close-fitting seal ring of nested inserts with axle (11) inwall.

5. inserts injection moulding valve according to claim 1 is characterized in that: said spiral positioning circle (12) has with flashboard big envelope (10) goes up the close-fitting outside thread of internal thread.

6. inserts injection moulding valve according to claim 1 is characterized in that: the upper end of said valve rod (20) is the dihedral top.

7. inserts injection moulding valve according to claim 1 is characterized in that: the end that goes out of said valve body (14) is connected with the inlet side of leakage-proof integral valve (C); The inlet side inner chamber of said leakage-proof integral valve (C) is equipped with valve with pressure reduction integration cover (17); The integration cover is sealed and matched with spool (15) the formation Dynamic Elastic that stage clip (21) supports; The valve core rod of said spool (15) passes the center hole with the integrated leading truck of valve body (13); Have dump tank in the said center hole, stage clip (21) is positioned between spool (15) and the leading truck (13); Said valve has front ring gear (1) and the back gear ring (2) that cross section is the monocline profile of tooth with pressure reduction integration cover (17); Has integration chamber (A) between the said forward and backward gear ring; On the circular cone (4) of back gear ring, have raised line or/and salient point (5), the circular cone of said front ring gear (3) has the gradient that can be sealed and matched with spool inner cone (22).