CN201159348Y - Anti-theft instrument joint - Google Patents
Anti-theft instrument joint Download PDFInfo
- Publication number
- CN201159348Y CN201159348Y CNU2008200786724U CN200820078672U CN201159348Y CN 201159348 Y CN201159348 Y CN 201159348Y CN U2008200786724 U CNU2008200786724 U CN U2008200786724U CN 200820078672 U CN200820078672 U CN 200820078672U CN 201159348 Y CN201159348 Y CN 201159348Y
- Authority
- CN
- China
- Prior art keywords
- hole
- conveyance conduit
- special
- joint body
- theft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an anti-theft instrument joint, comprising a body connecting a conveying pipeline and a metering instrument, and a special-shaped positioning screw connecting the body and the conveying pipeline, wherein the side wall of the body is provided with at least one through hole, the end of the through hole adjacent the outer wall of the body is provided with a counter bore larger than the through hole, the outer wall of the conveying pipeline is at least provided with an annular slot corresponding to the through hole, the special-shaped positioning screw is fixedly connected with the through hole and abutted in the annular slot of the conveying pipeline, and the head of the special-shaped positioning screw is provided in the counter bore. The anti-theft instrument joint has simple structure, easy installment, long service life and anti-theft function.
Description
Technical field
The utility model relates to a kind of piecing devices, particularly a kind of meter connector with anti-theft feature that is used to connect instrument and conveyance conduit.
Background technique
Combustion gas, water etc. are the requisite public resources in the numerous cities of China, but phenomenon all occurs usurping in many places at present, will cause various potential safety hazards in usurping process, the order of influence purchase and sale simultaneously.The gas meter of Shi Yonging, water meter are directly to be connected with conveyance conduit 1 by joint body 2 now, as shown in Figure 1, be an end and conveyance conduit 1 clamping of joint body 2, the other end is connected with the port of measuring instrument by screw thread, there is easy-to-dismount drawback, with the gas meter is example, as long as back out joint body 2, make the import and export changing-over, or in the air outlet, place mode such as foreign matter, the capital causes measuring instrument not measure, the problem that then can make the indicator of instrument occur going back for water meter, thus it is stolen to cause measuring medium.And industry does not still have effective solution to this kind phenomenon at present.
The model utility content
In view of this, main purpose of the present utility model is to provide a kind of and directly has anti-theft feature, and Anti-theft instrument joint simple in structure, easy for installation.
For achieving the above object, Anti-theft instrument joint in the utility model includes joint body that connects conveyance conduit and measuring instrument and the special-shaped set screw that is used to be connected described joint body and conveyance conduit, on the sidewall of described joint body, be provided with at least one through hole, end in the contiguous described joint body outer wall of described through hole is provided with the counterbore of diameter greater than described through hole, on the outer wall of described conveyance conduit, be provided with one annular groove at least, this annular groove is corresponding with the position of described through hole, described special-shaped set screw and described through hole are connected and fixed and replace in the annular groove of described conveyance conduit, and the head of described special-shaped set screw is positioned at described counterbore inside simultaneously.
Described conveyance conduit is provided with annular boss with described joint body clamping at the outboard end of described annular groove.
The diameter of described through hole is less than the width of the set annular groove of described conveyance conduit outer wall.
The inwall of described through hole is provided with the internal thread that is connected with described special-shaped set screw.
The head end of described special-shaped set screw is above petal of three lobes.
A described joint body end of sidewall within it is provided with the internal thread that is connected with described measuring instrument, and the other end is provided with the annular convex with the clamping of described conveyance conduit annular boss, and described through hole is positioned on the described annular convex.
The end face of described joint body is triangular in shape, quadrilateral, pentagon or irregular shape.
Special-shaped set screw in the utility model is the special set screw that differs from NBS, can avoid dismantling special-shaped set screw with general common tool.In addition, the Anti-theft instrument joint in the utility model has simple in structure, cheap, easy for installation, reliable performance, and characteristics such as long service life, and need not to change existing measuring instrument structure and can reach antitheft requirement.
Description of drawings
Fig. 1 is the axial sectional view of existing meter connector after assembling;
Fig. 2 is the axial sectional view of conveyance conduit of the present utility model;
Fig. 3 is the axial sectional view of the utility model joint body;
Fig. 4 is the axial sectional view of the utility model Anti-theft instrument joint.
Embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 4, the Anti-theft instrument joint in the utility model includes delivery pipe 1, joint body 2 and special-shaped set screw 3.Wherein:
One end of this conveyance conduit 1 is communicated with air feed, water supply equipment (not shown), the other end is connected with the measuring instrument (not shown) by joint body 2, this conveyance conduit 1 is used near being provided with inward from the end on the outer wall of an end of measuring instrument that (shown in the figure is an annular groove with the annular boss 7 of joint body 2 clampings and at least one annular groove 4, but can increase into twice, three roads or more according to different demands), as shown in Figure 2.
The external frame of this joint body 2 can be cylindrical, triangular prism shaped, four prism type, pentagonal prism shape, irregular shape and other various abnormity, its corresponding end face is rounded, triangle, quadrilateral, pentagon, irregular shape or the like and other various abnormity, its inside is a through hole 8, as shown in Figure 3, inwall one end at this through hole 8 is provided with the annular convex 9 that is used for 7 clampings of conveyance conduit 1 end annular boss, and the other end is provided with and is used for the internal thread 10 that is connected with measuring instrument.This joint body 2 is positioned at annular convex 9 on sidewall position is provided with one or two (can be more, be provided with according to the different demands of pipeline) through hole 5, is provided with the counterbore 6 of diameter greater than through hole 5 at an end of through hole 5 adjacent joint bodies 2 outer wall.The part that runs through sidewall at through hole 5 is provided with internal thread 11, is used for being connected with special-shaped set screw 3.The height of counterbore 6 is higher than the height of special-shaped set screw 3 heads.
The contouring head of abnormity set screw 3 is abnormity, can be the above petal-like shape of triangle, square, prismatic and three lobes, need be furnished with the shape unlatching key consistent with it, could drive its rotation.
As shown in Figure 4, meter connector in the utility model in use, joint body 2 is enclosed within on the conveyance conduit 1, utilize annular boss 7 and annular convex 9 clampings, and by seal ring 12 sealings, this moment, through hole 5 was just in time corresponding with annular groove 4, again special-shaped set screw 3 is screwed in through holes and replace in annular groove 4, also can replace on the bottom surface of annular groove 4, and the head of special-shaped set screw 3 just in time is positioned at the counterbore 6 of joint body 2, is lower than the outer wall surface of joint body 2.At last joint body 2 directly is threaded with the joint of measuring instrument and gets final product.
In sum, the meter connector in the utility model has following advantage:
1, directly existing conveyance conduit and joint body are improved, have and process advantage simple, easy for installation, long service life.
2, adopt special-shaped set screw, need be furnished with specific instrument and could open, so can prevent to use general common instrument to dismantle screw, thereby can avoid combustion gas stolen.
3, do not increase extra valve, reduce antitheft cost relatively.
4, utilize the fixing of special-shaped set screw, increased the degree of being connected firmly between conveyance conduit and the joint body.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (7)
1, a kind of Anti-theft instrument joint, it is characterized in that, it comprises: connect the joint body of conveyance conduit and measuring instrument and be used to be connected the special-shaped set screw of described joint body and conveyance conduit, on the sidewall of described joint body, be provided with at least one through hole, end in the contiguous described joint body outer wall of described through hole is provided with the counterbore of diameter greater than described through hole, on the outer wall of described conveyance conduit, be provided with one annular groove at least, this annular groove is corresponding with the position of described through hole, described special-shaped set screw and described through hole are connected and fixed and replace in the annular groove of described conveyance conduit, and the head of described special-shaped set screw is positioned at described counterbore inside simultaneously.
2, Anti-theft instrument joint according to claim 1 is characterized in that, described conveyance conduit is provided with annular boss with described joint body clamping at the outboard end of described annular groove.
3, Anti-theft instrument joint according to claim 1 and 2 is characterized in that, the diameter of described through hole is less than the width of the set annular groove of described conveyance conduit outer wall.
4, Anti-theft instrument joint according to claim 1 and 2 is characterized in that, the inwall of described through hole is provided with the internal thread that is connected with described special-shaped set screw.
5, Anti-theft instrument joint according to claim 1 and 2 is characterized in that, the head end of described special-shaped set screw is the above colored shape of three lobes.
6, Anti-theft instrument joint according to claim 2, it is characterized in that, a described joint body end of sidewall within it is provided with the internal thread that is connected with described measuring instrument, the other end is provided with the annular convex with the clamping of described conveyance conduit annular boss, and described through hole is positioned on the described annular convex.
7, Anti-theft instrument joint according to claim 1 and 2 is characterized in that, the end face of described joint body is triangular in shape, quadrilateral, pentagon or irregular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786724U CN201159348Y (en) | 2008-01-22 | 2008-01-22 | Anti-theft instrument joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786724U CN201159348Y (en) | 2008-01-22 | 2008-01-22 | Anti-theft instrument joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159348Y true CN201159348Y (en) | 2008-12-03 |
Family
ID=40109932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200786724U Expired - Fee Related CN201159348Y (en) | 2008-01-22 | 2008-01-22 | Anti-theft instrument joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159348Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876174A (en) * | 2015-06-09 | 2015-09-02 | 芜湖瑞泰精密机械有限公司 | Anti-freezing solution fill adapter structure |
-
2008
- 2008-01-22 CN CNU2008200786724U patent/CN201159348Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876174A (en) * | 2015-06-09 | 2015-09-02 | 芜湖瑞泰精密机械有限公司 | Anti-freezing solution fill adapter structure |
| CN104876174B (en) * | 2015-06-09 | 2018-03-27 | 芜湖瑞泰精密机械有限公司 | A kind of anti-icing fluid fill adapter structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206018128U (en) | A kind of pipeline testing pressure valve | |
| CN201159348Y (en) | Anti-theft instrument joint | |
| CN204007724U (en) | A kind of magneto-electric angie type vortex shedding flow meter | |
| CN102980718A (en) | On-line pressure detecting method and device thereof | |
| CN209839420U (en) | Universal positioning mechanism of outlet pipe | |
| CN201872132U (en) | Assembling tool for RF (radio frequency) coaxial connector | |
| CN108266295A (en) | A kind of filter tightens position limiting structure and tightening technique | |
| CN202023951U (en) | Cold water, hot water and mixed water tap | |
| CN216433095U (en) | Integrated modular flow detection equipment | |
| CN216621279U (en) | Water flow differential pressure type flowmeter convenient to install | |
| CN2040209U (en) | Rapidly-disassembled fastening device | |
| CN219641029U (en) | Intelligent water meter with multiple caliber interfaces | |
| CN217878132U (en) | Magnetic differential pressure gauge with balance valve | |
| CN220980450U (en) | Embedded assembly structure of electromagnetic pulse valve | |
| CN201103759Y (en) | Anti-disassembly connector used for instrument connection | |
| CN212747950U (en) | Gas-liquid flowmeter | |
| CN202582818U (en) | Bourdon tube pressure gauge | |
| CN215318478U (en) | Miniature proportional valve case dismantles frock | |
| CN214843779U (en) | High pressure resistant pressure transmitter device | |
| CN217901078U (en) | Anticorrosive wear-resisting type pressure transmitter convenient to installation | |
| CN212672408U (en) | Flange type three-way stop | |
| CN112483073B (en) | Multifunctional pressure gauge mounting device | |
| CN203396438U (en) | Dismounting preventing gas meter connector | |
| CN215111171U (en) | Pressure gauge joint of hydraulic station of vertical shaft crusher | |
| CN213902510U (en) | Water meter convenient to install and maintain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20100222 |