CN201909134U

CN201909134U - Stainless steel meter connecting hose

Info

Publication number: CN201909134U
Application number: CN2010206913504U
Authority: CN
Inventors: 凡思军
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-07-27
Anticipated expiration: 2020-12-30

Abstract

The utility model discloses a stainless steel meter connecting hose, which comprises a corrugated pipe (1). A straight pipe (2) is disposed at the top end of the corrugated pipe (1), a nut which can only rotate in a single direction on a corresponding threaded part is disposed at the bottom end (13) of the corrugated pipe (1), and a PVC (polyvinyl chloride) protecting sleeve (10) is sleeved on the outer surface of the corrugated pipe (1). The nut which can only rotate in the single direction on the corresponding threaded part consists of a seat (4) and an inner container (3) sleeved in the seat (4), and axes of the seat (4) and the inner container (3) are coincided with each other. The stainless steel meter connecting hose has the advantages of convenience in installation and utilization and capability of realizing an antitheft function.

Description

The Stainless Steel Watch tool connects flexible pipe

Technical field

The utility model relates to a kind of connecting tube, and particularly a kind of Stainless Steel Watch tool connects flexible pipe.

Background technique

Gas meter need link to each other with interface on the gas pipeline with connecting tube by the gas meter tool, is used for user's gas metering.Existing gas meter tool is indoor, the outdoor connecting tube is to adopt Stainless Steel Tube in the majority, and an end of this Stainless Steel Tube is provided with nut, the other end and links to each other with interface on the gas pipeline, and this interface is typically provided to clamp-press type or encircles pressure type.In the real work, nut links to each other with adapter on the gas meter, and Stainless Steel Tube links to each other with matching interface on the gas pipeline.Because Stainless Steel Tube is a kind of hard tube, it can not be crooked arbitrarily according to the construction needs of reality; Therefore in the installation process of reality, the gas meter tool that can only adopt various pipe joints to be equipped with some is realized and the linking to each other of gas meter with connecting tube.So, just have following drawback inevitably: 1), owing to increased the tie point of pipeline, cause easily therefore that leak source is many, measurement shoutage greatly, waste energy.2), installation difficulty is big, the expense material is taken a lot of work; Both increase labor intensity, strengthened installation cost again.3), when being used for the open air and articulating gas meter, also to the lawless person opportunity is arranged easily, the stolen incident of gas meter takes place easily.4), because certain user's dismounting gas meter privately; Cause the generation of accident such as on fire from explosion easily.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of Stainless Steel Watch tool connection flexible pipe of being convenient to install and use and possess anti-theft feature.

In order to solve the problems of the technologies described above, the utility model provides a kind of Stainless Steel Watch tool to connect flexible pipe, comprises bellows, on the top of bellows straight tube is set, be arranged in the bottom of bellows on the corresponding threaded piece can only one-way rotation nut; At the outer surface suit PVC of bellows protecting cover.

Connect the improvement of flexible pipe as Stainless Steel Watch tool of the present utility model: nut that can only one-way rotation on the threaded piece of correspondence comprises pedestal and is sleeved on inner bag in the pedestal, the shaft axis 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 the through hole I, on the outer surface of inner bag sidewall, be provided with the 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 outer surface at the bottom of the inner bag, and surface groove strengthens along turning to gradually of internal thread 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 the through hole II, be provided with and the corresponding groove II of groove I on the internal surface of present body sidewall, on the internal surface at the bottom of the pedestal, be provided with and the corresponding oblique protuberance of surface groove, oblique protuberance by rivet with at the bottom of pedestal, be fixedly linked; On the outer surface of present body sidewall stationary plane is set;

Jump ring is positioned at groove I and groove II simultaneously, and the bottom of bellows is arranged in the inner chamber of inner bag.

Connect the further improvement of flexible pipe as Stainless Steel Watch tool of the present utility model: be the gap of 0.5～1.5mm between the outer surface of inner bag sidewall and the pedestal inside surface of side wall.

Connect the further improvement of flexible pipe as Stainless Steel Watch tool of the present utility model: 4 surface grooves are set equably, on the internal surface at the bottom of the pedestal, are provided with and 4 surface grooves, 4 oblique protuberances one to one mutually on the outer surface at the bottom of the inner bag.

Connect the further improvement of flexible pipe as Stainless Steel Watch tool of the present utility model: above the bottom of bellows positioning step is set, positioning step is arranged in the inner chamber of inner bag.

Connect the further improvement of flexible pipe as Stainless Steel Watch tool of the present utility model: at the outer surface suit seal ring of the bellows that is arranged in the inner bag inner chamber, positioning step is close in the upper-end surface of seal ring, and the lower end surface of seal ring and the bottom of bellows flush.

The bellows that the utility model adopted is conventional bellows, promptly at the two ends of a corrugated flexible pipe (being top and bottom) light pipe is set respectively, thereby forms a bellows.

Stainless Steel Watch tool of the present utility model connects flexible pipe owing to adopted bellows, therefore has certain ductility, can carry out corresponding bending according to the installation needs of reality.In the work, only need in the light of actual conditions select for use the bellows of respective length to get final product, need not to use a plurality of pipe joints; Therefore not only can conveniently install, save cost, increase work efficiency, can also reduce leak source, reduce measurement shoutage, energy saving, and can play good antihunt action.The utility model since be provided with in the bottom of bellows on the threaded piece in correspondence can only one-way rotation nut, therefore can avoid stealing the generation of incidents such as gas meter.The utility model is owing to be provided with straight tube on the top of bellows, and therefore no matter the interface on the gas pipeline is clamp-press type or ring pressure type, and straight tube all can be realized supporting the connection with the interface on the gas pipeline.The corrosion that the PVC protecting cover can avoid outdoor acid rain or slush that bellows is produced, thereby the generation of stopping gas leak phenomenon, the energy that not only can avoid waste can also eliminate safe hidden trouble.

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 that a kind of Stainless Steel Watch tool connects the partial cutaway of flexible pipe;

Fig. 2 is the enlarged diagram of the annexation of pedestal 4 among Fig. 1 and inner bag 3.

Embodiment

Embodiment 1, Fig. 1 and Fig. 2 are connected flexible pipe in conjunction with having provided a kind of Stainless Steel Watch tool, comprise bellows 1, straight tube 2, nut, PVC protecting cover 10 that can only one-way rotation on the threaded piece of correspondence.Bellows 1 and straight tube 2 are made by stainless steel.The top of bellows 1 and straight tube 2 are fixedly linked.

Spiro cap that can only one-way rotation on the threaded piece of correspondence is contained in the bottom of bellows 1, and this nut comprises pedestal 4 and inner bag 3.

Inner bag 3 be by at the bottom of the inner bag 33 and inner bag sidewall 36 surround the staving that forms, 33 center is provided with through hole I 31 at the bottom of inner bag, on the outer surface of inner bag sidewall 36, be provided with groove I 35, internal thread 34 is set on the internal surface of inner bag sidewall 36, on 33 outer surface at the bottom of the inner bag 4 surface grooves 32 are set equably, this surface groove 32 strengthens along turning to gradually of internal thread 34 in the degree of depth on 33 at the bottom of the inner bag.

Pedestal 4 be by at the bottom of the pedestal 43 and pedestal sidewall 44 surround the staving that forms, whole inner bag 3 is sleeved on the inside of pedestal 4, and the shaft axis overlaid of pedestal 4 and inner bag 3; The gap that keeps 0.5～1.5mm between the internal surface of the outer surface of inner bag sidewall 36 and pedestal sidewall 44.43 center is provided with through hole II 41 at the bottom of pedestal, be provided with and groove I 35 corresponding groove II 45 on the internal surface of present body sidewall 44, on 43 internal surface at the bottom of the pedestal, 4 oblique protuberances 42 are set evenly, these 4

oblique protuberances

42 and 4 surface grooves 32 just in time are one to one, and the angle of inclination of oblique protuberance 42 and direction are with surface groove 32.Each oblique protuberance 42 all by 1 rivet 6 with 43 be fixedly linked at the bottom of the pedestal.On the outer surface of present body sidewall 44 stationary plane 46 is set, this stationary plane 46 is Hexagon or Octagon, and spanner can drive corresponding rotation of pedestal 4 works after blocking this stationary plane 46.Except oblique protuberance 42 was made by spring steel plate, whole inner bag 3 and pedestal 4 were made of copper.

Formed an annular pass after groove I 35 and groove II 45 corresponding the applyings, jump ring 5 is stuck in this annular pass, and promptly jump ring 5 is positioned at groove I 35 and groove II 45 simultaneously; Therefore, relative rotation can take place with inner bag 3 in pedestal 4, but inner bag 3 can not drop out from pedestal 4, has guaranteed that promptly inner bag sidewall 36 can not exceed pedestal sidewall 44 all the time and exposes.So, unless destroy pedestal sidewall 44, otherwise can not utilize instrument to come rotating liner 3.Jump ring 5 is made by spring steel.

The bottom 13 of bellows 1 is passed through hole II 41 and through hole I 31 successively, above the bottom 13 of bellows 1 positioning step 12 is set, and this time locating flange 12 is arranged in the inner chamber of inner bag 3.In order to prevent the leakage of gas or liquid, at the outer surface suit seal ring 11 of the bellows 1 that is arranged in inner bag 3 inner chambers; Positioning step 12 is close in the upper-end surface of sealing circle 11, and the bottom 13 of the lower end surface of seal ring 11 and bellows 1 flushes.Seal ring 11 is made by nitrile butadiene rubber.

At PVC protecting cover 10 of outer surface suit of bellows 1, PVC protecting cover 10 can play the effect of protection bellows 1.

Stainless Steel Watch tool of the present utility model connects flexible pipe, during real work, straight tube 2 is inserted in the interface of clamp-press type on the gas pipeline or ring pressure type, utilizes conventional instrument to make straight tube 2 and interface realize being fixedly linked of sealing then.

Place spanner on stationary plane 46, be used to make nut to link to each other with joint on the gas meter tool, specific as follows: under the effect of spanner, pedestal 4 clockwise rotates, and the oblique protuberance 42 on the pedestal 4 snaps in the surface groove 32 on the inner bag 3 gradually; Thereby making pedestal 4 drive inner bag 3 clockwise rotates together.Seal ring 11 is used to guarantee the sealing between bellows 1 and the joint.When on inner bag 3 is being taken over, forwarding the tightest state to, rotate pedestal 4 again, oblique protuberance 42 is snapped in the surface groove 32 tightly.At this moment, nut has just closely linked to each other with joint.If want to realize purpose that nut and joint are separated, just need rotate counterclockwise nut; At this moment, oblique protuberance 42 will skid off in surface groove 32, and this oblique protuberance 42 outer surface of 33 at the bottom of the inner bag slides, thereby makes pedestal 4 and inner bag 3 produce skiddings, so pedestal 4 can't drive inner bag 3 and rotates counterclockwise accordingly.Because jump ring 5 is positioned at groove I 35 and groove II 45 simultaneously, thus inner bag 3 can with pedestal 4 between the not relative phenomenon that slides up and down takes place; Promptly guaranteed inner bag sidewall 36 can not exceed pedestal sidewall 44 all the time and exposed.And, therefore also can not put into instrument such as spanner in this gap and come direct rotating liner 3 because the gap between inner bag sidewall 36 and the pedestal sidewall 44 is less.So,, unload otherwise the gas meter tool can not be connected flexible pipe from Stainless Steel Watch tool of the present utility model unless destroy pedestal sidewall 44.

At last, it is also to be noted that what more than enumerate only is several specific embodiments 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. the Stainless Steel Watch tool connects flexible pipe, it is characterized in that: comprise bellows (1), straight tube (2) be set on the top of bellows (1), be arranged in the bottom (13) of bellows (1) on the corresponding threaded piece can only one-way rotation nut; Outer surface suit PVC protecting cover (10) at bellows (1).

2. Stainless Steel Watch tool according to claim 1 connects flexible pipe, it is characterized in that: described nut that can only one-way rotation on the threaded piece of correspondence comprises pedestal (4) and is sleeved on inner bag (3) in the pedestal (4), the shaft axis overlaid of pedestal (4) and inner bag (3);

Described inner bag (3) is to surround the staving that forms by (33) at the bottom of the inner bag and inner bag sidewall (36), the center of (33) is provided with through hole I (31) at the bottom of inner bag, on the outer surface of inner bag sidewall (36), be provided with groove I (35), internal thread (34) is set on the internal surface of inner bag sidewall (36), the surface groove (32) of at least one is set on the outer surface of (33) at the bottom of the inner bag, and the degree of depth of described surface groove (32) on (33) at the bottom of the inner bag strengthens along turning to gradually of internal thread (34);

Described pedestal (4) is to surround the staving that forms by (43) at the bottom of the pedestal and pedestal sidewall (44), the center of (43) is provided with through hole II (41) at the bottom of pedestal, be provided with and the corresponding groove II of groove I (35) (45) on the internal surface of present body sidewall (44), be provided with and the corresponding oblique protuberance of surface groove (32) (42) on the internal surface of (43) at the bottom of the pedestal, described oblique protuberance (42) is fixedly linked by rivet (6) and (43) at the bottom of the pedestal; On the outer surface of present body sidewall (44) stationary plane (46) is set;

Jump ring (5) is positioned at groove I (35) and groove II (45) simultaneously, and the bottom (13) of bellows (1) is arranged in the inner chamber of inner bag (3).

3. Stainless Steel Watch tool according to claim 2 connects flexible pipe, and it is characterized in that: between the internal surface of the outer surface of inner bag sidewall (36) and pedestal sidewall (44) is the gap of 0.5～1.5mm.

4. Stainless Steel Watch tool according to claim 3 connects flexible pipe, it is characterized in that: 4 surface grooves (32) are set on the outer surface of (33) at the bottom of the inner bag equably, on the internal surface of (43) at the bottom of the pedestal, are provided with and 4 surface grooves (32), 4 oblique protuberances (42) one to one mutually.

5. connect flexible pipe according to claim 3 or 4 described Stainless Steel Watch tools, it is characterized in that: the top, bottom (13) in bellows (1) is provided with positioning step (12), and described positioning step (12) is arranged in the inner chamber of inner bag (3).

6. Stainless Steel Watch tool according to claim 5 connects flexible pipe, it is characterized in that: at the outer surface suit seal ring (11) of the bellows (1) that is arranged in inner bag (3) inner chamber, positioning step (12) is close in the upper-end surface of described seal ring (11), and the bottom (13) of the lower end surface of seal ring (11) and bellows (1) flushes.