CN201876286U

CN201876286U - Automatic anti-theft watch joint

Info

Publication number: CN201876286U
Application number: CN2010206233869U
Authority: CN
Inventors: 凡思军
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-23
Filing date: 2010-11-23
Publication date: 2011-06-22
Anticipated expiration: 2020-11-23

Abstract

The utility model discloses an automatic anti-theft watch joint, which comprises a connecting pipe (4) and a screw cap which can only rotate in one direction on a corresponding threaded part, wherein the lower part of the connecting pipe (4) is sleeved in the screw cap; the upper part of the connecting pipe (4) is provided with external threads (44); the outer surface of the connecting pipe (4) is provided with a connecting pipe fixing surface (43); the screw cap comprises a seat body (1) and an inner container (2) which is sleeved in the seat body (1); the axial lead of the seat body (1) is overlapped with the axial lead of the inner container (2); and a snap spring (3) is arranged between the seat body (1) and the inner container (2). The automatic anti-theft watch joint has a simple structure and an anti-theft function, and is convenient to install.

Description

The automatic antitheft meter connector

Technical field

The utility model relates to a kind of joint, particularly a kind of automatic antitheft meter connector.

Background technology

Along with improving constantly of living standards of the people, tap water and pipe gas have become the necessity of daily life.Usually Every household has an ammeter for the employing of resident family, generally divides 2 kinds of indoor table and outdoor pocket watches.

With the pipe gas is example, and gas inlet pipe need link to each other with the combustion gas escape pipe by behind the gas meter, flow meter, and gas meter, flow meter is used for user's gas metering.The two ends of gas meter, flow meter respectively link to each other with the combustion gas escape pipe with gas inlet pipe by a joint respectively.Because gas meter, flow meter adopts common wrench to be disassembled down from existing joint easily, therefore exist following problem:

1), when gas meter, flow meter is outdoor pocket watch, to the lawless person opportunity is arranged easily, cause taking place the stolen incident of gas meter, flow meter;

2), when gas meter, flow meter is indoor table, the certain user can remove gas meter, flow meter privately, thereby gas inlet pipe is directly linked to each other with the combustion gas escape pipe, purpose is to make combustion gas not reach the steathily purpose of gas by gas meter, flow meter; The keeper who runs into gas company checks meter or when checking, gas meter, flow meter is resetted again.And,, the keeper of gas company can check meter and check just that therefore indoor table also can cause increasing handling cost because need entering in the user family.

The utility model content

The technical problems to be solved in the utility model provides a kind of simple in structure, easy for installation and possess the automatic antitheft meter connector of anti-theft feature.

In order to solve the problems of the technologies described above, the utility model provides a kind of automatic antitheft meter connector, the nut that comprises connecting pipe and can only one-directional rotation on the screw element of correspondence, the bottom of connecting pipe is sleeved in the nut, top at connecting pipe is provided with external thread, at the outside surface of connecting pipe the connecting pipe stationary plane is set.

Improvement as automatic antitheft meter connector of the present utility model: nut comprises pedestal and is sleeved on the interior inner bag of pedestal, the axial line overlaid of pedestal and inner bag;

Inner bag be by at the bottom of the inner bag and the inner bag sidewall surround the staving that forms, center at the bottom of inner bag is provided with through hole I, on the outside surface of inner bag sidewall, be provided with groove I, on the inner bag inside surface of side wall, internal thread is set, the surface groove of at least one is set on the outside surface at the bottom of the inner bag, and surface groove strengthens along the hand of spiral of internal thread gradually in the degree of depth at the bottom of the inner bag;

Pedestal be by at the bottom of the pedestal and the pedestal sidewall surround the staving that forms, center at the bottom of pedestal is provided with through hole II, be provided with and the corresponding groove II of groove I on the inside surface of present body sidewall, be provided with on the inside surface at the bottom of the pedestal and the corresponding oblique protuberance of surface groove, oblique protuberance is fixedly linked at the bottom of by rivet and pedestal; On the outside surface of present body sidewall the pedestal stationary plane is set;

Jump ring is positioned at groove I and groove II simultaneously; The bottom of connecting pipe is sleeved in the inner chamber of inner bag.

Further improvement as automatic antitheft meter connector of the present utility model: be the gap of 0.5～1.5mm between the outside surface of inner bag sidewall and the pedestal inside surface of side wall.

Further improvement as automatic antitheft meter connector of the present utility model: the bottom at connecting pipe is provided with positioning step, and positioning step is arranged in the inner chamber of inner bag.

Further improvement as automatic antitheft meter connector of the present utility model: outside surface suit O-ring seal in the connecting pipe bottom; Positioning step is close in the upper surface of O-ring seal, and the lower surface of O-ring seal and the bottom of connecting pipe flush.

During the actual use of automatic antitheft meter connector of the present utility model, the nut of being made up of pedestal and inner bag links to each other with the adapter (head of this adapter is provided with the external thread that matches with nut of the present utility model) on the gas meter, flow meter, when nut clockwise rotated on taking over, the oblique protuberance on the pedestal snapped in the surface groove on the inner bag gradually; Thereby realize that nut links to each other with the tight of adapter.If want nut is separated with adapter, just need rotate counterclockwise nut; At this moment, oblique protuberance will skid off in surface groove, thereby makes pedestal and inner bag produce skidding, so pedestal can't drive inner bag and rotates counterclockwise accordingly.So,, be to realize separating of nut and adapter otherwise only use instruments such as spanner unless tool using comes the violence damage pedestal; Thereby effectively realized the function of automatic antitheft, also effectively avoided the dismounting gas meter, flow meter caused privately accident such as on fire from explosion because of the user.Connecting pipe on the automatic antitheft meter connector of the present utility model links to each other with gas inlet pipe or combustion gas escape pipe, gas inlet pipe or combustion gas escape pipe are provided with the nut that matches with the external thread at connecting pipe place, rely on the cooperation of screw thread, thus realize gas meter, flow meter and gas inlet pipe or with being connected of combustion gas escape pipe.

Like this, under the effect of 2 automatic antitheft meter connectors of the present utility model, gas inlet pipe, gas meter, flow meter and combustion gas escape pipe have been linked to be one.Because gas meter, flow meter can't be separated with the automatic antitheft meter connector, therefore can avoid stealing, the generation of incident such as demolition diaphragm gas meter privately.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of the partial cutaway of automatic antitheft meter connector of the present utility model.

Embodiment

Embodiment 1, Fig. 1 have provided a kind of automatic antitheft meter connector, comprise connecting pipe 4 and nut that can only one-directional rotation on the screw element of correspondence.Nut that can only one-directional rotation on the screw element of correspondence is made up of pedestal 1, inner bag 2 and jump ring 3.The axial line of pedestal 1, inner bag 2 and connecting pipe 4 all overlaps.

Inner bag 2 be by at the bottom of the inner bag 23 and inner bag sidewall 26 surround the staving that forms, 23 center is provided with through hole I21 at the bottom of inner bag, on the outside surface of inner bag sidewall 26, be provided with groove I 25, internal thread 24 is set on the inside surface of inner bag sidewall 26, on 23 outside surface at the bottom of the inner bag 4 surface grooves 22 are set equably, this surface groove 22 strengthens along the hand of spiral of internal thread 24 gradually in the degree of depth on 23 at the bottom of the inner bag.

Pedestal 1 be by at the bottom of the pedestal 13 and pedestal sidewall 14 surround the staving that forms, whole inner bag 2 is sleeved on the inside of pedestal 1; The gap that keeps 0.5～1.5mm between the inside surface of the outside surface of inner bag sidewall 26 and pedestal sidewall 14.13 center is provided with through hole II 11 at the bottom of pedestal, is provided with and groove I 25 corresponding groove II 15 on the inside surface of present body sidewall 14; On 13 inside surface at the bottom of the pedestal, 4 oblique protuberances 12 are set evenly, each oblique protuberance 12 respectively by 1 rivet 6 with 13 be fixedly linked at the bottom of the pedestal; These 4

oblique protuberances

12 and 4 surface grooves 22 just in time are one to one, and the angle of inclination of oblique protuberance 12 and direction are with surface groove 22.On the outside surface of present body sidewall 14 pedestal stationary plane 16 is set, this pedestal stationary plane 16 is hexagon or octagon, and spanner can drive corresponding rotation of pedestal 1 work after blocking this pedestal stationary plane 16.Except oblique protuberance 12 was made by spring steel plate, the remainder of pedestal 1 and whole inner bag 2 were made by brass.

Formed a circular passage after groove I 25 and groove II 15 corresponding the applyings, jump ring 3 is stuck in this circular passage, and promptly jump ring 3 is positioned at groove I 25 and groove II 15 simultaneously; Therefore, relative rotation can take place with inner bag 2 in pedestal 1, but inner bag 2 can not drop out from pedestal 1, has guaranteed that promptly inner bag sidewall 26 can not exceed pedestal sidewall 14 all the time and exposes.So, unless destroy pedestal sidewall 14, otherwise can not utilize instrument to come rotating liner 2.Jump ring 3 is made by spring steel.

Outside surface on connecting pipe 4 tops is provided with external thread 44; Outside surface at connecting pipe 4 middle parts is provided with connecting pipe stationary plane 43, and this connecting pipe stationary plane 43 is hexagon or octagon, and spanner can drive corresponding rotation of connecting pipe 4 works after blocking this connecting pipe stationary plane 43.Outside surface in connecting pipe 4 bottoms is provided with annulus, and this annulus becomes positioning step 42, and positioning step 42 is near the bottom 41 of connecting pipe 4.The bottom 41 of connecting pipe 4 is passed the inner chamber that is arranged in inner bag 2 behind through hole II 11 and the through hole I 21 successively, and this positioning step 42 also is arranged in the inner chamber of inner bag 2; During the actual use of this automatic antitheft meter connector, the upper surface of positioning step 42 is supporting at the bottom of the inner bag 23 inside surface.At the outside surface suit O-ring seal 5 (O-ring seal 5 is positioned at the below of positioning step 42) of connecting pipe 4 bottoms, the lower surface of positioning step 42 is close in the upper surface of O-ring seal 5, and the bottom 41 of the lower surface of O-ring seal 5 and connecting pipe 4 flushes.O-ring seal 5 is made by fluororubber.

Internal thread 24 is the opposite screw thread of hand of spiral with external thread 44.For example: internal thread 24 is a plus thread, and external thread 44 is a left-hand thread.

During actual the use, on two joints of turnover of gas meter, flow meter an automatic antitheft meter connector of the present utility model is set respectively respectively, practical work process is as follows:

1, on pedestal stationary plane 16, places spanner, be used to make nut continuous with the adapter (head of this adapter is provided with the external thread that matches with nut of the present utility model) on the gas meter, flow meter tool, specific as follows: under the effect of spanner, pedestal 1 clockwise rotates, and the oblique protuberance 12 on the pedestal 1 snaps in the surface groove 22 on the inner bag 2 gradually; Thereby making pedestal 1 drive inner bag 2 clockwise rotates together.O-ring seal 5 is used to guarantee the sealing between the adapter on inner bag 2 and the gas meter, flow meter tool.

When on inner bag 2 is being taken over, forwarding the tightest state to, rotate pedestal 1 again, oblique protuberance 12 is snapped in the surface groove 22 tightly.At this moment, nut has just closely linked to each other with adapter.If want to realize nut and the purpose that adapter is separated just need be rotated counterclockwise nut; At this moment, oblique protuberance 12 will skid off in surface groove 22, and this oblique protuberance 12 outside surface of 23 at the bottom of the inner bag slides, thereby makes pedestal 1 and inner bag 2 produce skiddings, so pedestal 1 can't drive inner bag 2 and rotates counterclockwise accordingly.Because jump ring 3 is positioned at groove I 25 and groove II 15 simultaneously, thus inner bag 2 can with pedestal 1 between the not relative phenomenon that slides up and down takes place; Promptly guaranteed inner bag sidewall 26 can not exceed pedestal sidewall 14 all the time and exposed.And, therefore also put into instrument such as spanner during this time in the crack and come direct rotating liner 2 because the gap between inner bag sidewall 26 and the pedestal sidewall 14 is less.So, unless destroy pedestal sidewall 14, otherwise the gas meter, flow meter tool can not be unloaded from automatic antitheft meter connector of the present utility model.

2, the connecting pipe 4 of an automatic antitheft meter connector links to each other with gas inlet pipe, and gas inlet pipe is provided with the nut that matches with the external thread 44 at connecting pipe 4 places, relies on the cooperation of screw thread, thereby realizes that gas meter, flow meter is connected with gas inlet pipe.During practical set, on connecting pipe stationary plane 43, place spanner, be used for fixing connecting pipe 4, thereby connecting pipe 4 is linked to each other with nut on the gas inlet pipe.In order to guarantee the sealing between the nut on connecting pipe 4 and the gas inlet pipe, but between is provided with O-ring seal.

In like manner, the connecting pipe 4 of another automatic antitheft meter connector links to each other with the combustion gas escape pipe, and the combustion gas escape pipe is provided with the nut that matches with the external thread 44 at connecting pipe 4 places, relies on the cooperation of screw thread, thereby realizes that gas meter, flow meter is connected with the combustion gas escape pipe.During practical set, on connecting pipe stationary plane 43, place spanner, be used for fixing connecting pipe 4, thereby connecting pipe 4 is linked to each other with nut on the combustion gas escape pipe.In order to guarantee the sealing between the nut on connecting pipe 4 and the combustion gas escape pipe, but between is provided with O-ring seal.

Like this, under the effect of 2 automatic antitheft meter connectors of the present utility model, gas inlet pipe, gas meter, flow meter and combustion gas escape pipe have been linked to be one.Because gas meter, flow meter can't be separated with the automatic antitheft meter connector, the generation of therefore can avoid stealing, particularly the user dismantling and change incidents such as gas meter, flow meter privately.

At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.

Claims

1. automatic antitheft meter connector, it is characterized in that: comprise connecting pipe (4) and nut that can only one-directional rotation on the screw element of correspondence, the bottom of described connecting pipe (4) is sleeved in the nut, on the top of connecting pipe (4) external thread (44) is set, connecting pipe stationary plane (43) is set at the outside surface of connecting pipe (4).

2. automatic antitheft meter connector according to claim 1 is characterized in that: described nut comprises pedestal (1) and is sleeved on the interior inner bag (2) of pedestal (1), the axial line overlaid of pedestal (1) and inner bag (2);

Described inner bag (2) is to surround the staving that forms by (23) at the bottom of the inner bag and inner bag sidewall (26), the center of (23) is provided with through hole I (21) at the bottom of inner bag, on the outside surface of inner bag sidewall (26), be provided with groove I (25), internal thread (24) is set on the inside surface of inner bag sidewall (26), the surface groove (22) of at least one is set on the outside surface of (23) at the bottom of the inner bag, and the degree of depth of described surface groove (22) on (23) at the bottom of the inner bag strengthens gradually along the hand of spiral of internal thread (24);

Described pedestal (1) is to surround the staving that forms by (13) at the bottom of the pedestal and pedestal sidewall (14), the center of (13) is provided with through hole II (11) at the bottom of pedestal, be provided with and the corresponding groove II of groove I (25) (15) on the inside surface of present body sidewall (14), be provided with and the corresponding oblique protuberance of surface groove (22) (12) on the inside surface of (13) at the bottom of the pedestal, described oblique protuberance (12) is fixedly linked by rivet (6) and (13) at the bottom of the pedestal; On the outside surface of present body sidewall (14) pedestal stationary plane (16) is set;

Jump ring (3) is positioned at groove I (25) and groove II (15) simultaneously; The bottom of connecting pipe (4) is sleeved in the inner chamber of inner bag (2).

3. automatic antitheft meter connector according to claim 2 is characterized in that: between the inside surface of the outside surface of inner bag sidewall (26) and pedestal sidewall (14) is the gap of 0.5～1.5mm.

4. according to claim 2 or 3 described automatic antitheft meter connectors, it is characterized in that: in the bottom of connecting pipe (4) positioning step (42) is set, described positioning step (42) is arranged in the inner chamber of inner bag (2).

5. automatic antitheft meter connector according to claim 4 is characterized in that: the outside surface suit O-ring seal (5) in connecting pipe (4) bottom; Positioning step (42) is close in the upper surface of described O-ring seal (5), and the bottom (41) of the lower surface of O-ring seal (5) and connecting pipe (4) flushes.