CN202402855U

CN202402855U - Rapid connector for instrument

Info

Publication number: CN202402855U
Application number: CN2011204710196U
Authority: CN
Inventors: 姜维利
Original assignee: Beijing Const Instruments Technology Inc
Current assignee: Beijing Const Instruments Technology Inc
Priority date: 2011-11-23
Filing date: 2011-11-23
Publication date: 2012-08-29
Anticipated expiration: 2021-11-23

Abstract

The utility model relates to a rapid connector for an instrument, which comprises an insert frame, wherein slidable threaded insert blocks are arranged in four insert holes of the insert frame; a locking sleeve capable of sliding up and down controls the threaded insert blocks to radially slide front and back through a cam structure at the inner side, and therefore a threaded interface of a connected instrument can be directly inserted and locked; the locking sleeve is rotated to compress a seal ring to ensure that a fast connecting rod and the connected instrument form sealing for carrying out checkout operation on the connected instrument; a spring is used as a returning force of the locking sleeve, the threaded insert blocks are pushed by the expansion force of an expansion spring to slide into a cam groove of the locking sleeve to finish thread unloosing; and a non-return retainer ring and a shaft snap spring are assembled together to form an integral structure. The rapid connector of the instrument can be wider in working pressure range, applicable to connection of various liquids and a gas medium pressure instrument, rapid and labor-saving, reliable to seal, simple in whole structure and easy to operate and meet the using requirements of the industry.

Description

The instrument fast connector

Technical field

The utility model belongs to pressure instrument standard technique field, is specifically related to the seized instrument fast connector of a kind of connection.

Background technique

In pressure instrument verification industry, traditional checking apparatus all is to adopt to be threaded into formula bindiny mechanism and to connect seized instrument, and rotary threaded will be wasted great amount of time, the energy that multi-pass operation simultaneously expends the user of service with produce injury; Some all more complicated of doing of device that can quick mounting and huge, cost is higher, generally is applicable to less pressure range and restriction transmission medium, is difficult to popularize and uses; Under this state, we are through for many years experience accumulation and test, and it is high to have designed efficient; Make simple fast connector, can substitute our existing connection quick-acting joint device, screw thread directly inserts; Rotation has improved installation efficiency greatly less than sealing once enclosing, and has liberated the operator; Can satisfy simultaneously the transmission medium of multiple medium, pressure range is wide, is the new generation product that substitutes existing quick access device.

The model utility content

It is a kind of simple in structure that the utility model purpose is to provide, and volume can be used for the fast connector in the instrument rapid pipe joint of various liquids and gases media for a short time, overcomes screw thread and enclose the time that rotation brings, the waste of efficient more.

The instrument rapid pipe joint of the utility model comprises that edge frame, lock sleeve, screw thread are inserted, seal ring, fast extension bar, spring, spreading spring and stopping back-up ring, and wherein: said edge frame wall symmetry is offered a plurality of chutes, screw thread is installed in the groove is inserted; The bottom is set with fast extension bar in the edge frame, and fast extension bar is established a jump ring with edge frame bottom, and fast extension bar upper end is put seal ring; The lock sleeve that can slide up and down is established in the outside of edge frame, and the top draw-in groove between edge frame and the lock sleeve is established the stopping back-up ring, sheathed spring between lower space; The lock sleeve inboard is cam structure, is the cam structure of coupling with the screw thread of its butt outer side surface of inserting, and leaves cam path between two cam structures; The screw thread inner side surface of inserting is a locking screw, the screw thread lower position installing spreading spring of inserting.

In the above-mentioned instrument rapid pipe joint, said edge frame is a tubular, and its wall is offered four chutes radially, and chute is a direct through groove, and screw thread is inserted in chute and its Spielpassung.

The utility model product has following characteristics:

1. adopt the lock sleeve slide type, insert the helical thread portion that connects instrument, greatly improved installation efficiency.

2. kept utilizing rotary threaded lock sealing spare, guaranteed the reliable and safety of sealing.

3. utilize retreating that cam dieback mechanism locking screw inserts, guarantee that there is not Problem of Failure in mechanism's using process.

4. make fairly simplely, cost is relatively low.

5. can have parts of one's own, easy for installation; Also can assemble and form widening parts together with fixing fast relay part.

6. be applicable to multiple transmission medium, can substitute the product of existing poor efficiency.

7. simple in structure, easy to operate, be convenient to safeguard, maintain.

Description of drawings

Fig. 1 is the utility model instrument fast connector three-dimensional structure diagram;

Fig. 2 is that the locking of the utility model instrument fast connector connects the instrument sectional drawing;

Fig. 3 is the sectional drawing that instrument is inserted, withdrawed from that connected of the utility model instrument fast connector.

Parts label among the figure: 1. edge frame 2. lock sleeves 3. screw threads 6. jump rings of 4. seal rings, 5. springs, 7. fast extension bar 8. spreading springs 9. stopping back-up rings 10. connection instrument of inserting

Embodiment

The utility model is a kind of instrument fast connector, is installed in the pressure instrument detection device, generally is used to connect seized instrument.Referring to Fig. 1-Fig. 3; This instrument fast connector integral body is cylindric, comprises the edge frame 1 of tubular, and edge frame 1 internal face symmetry is offered four chutes radially; Chute is a direct through groove; Install in each groove one slidably screw thread insert 3, screw thread 3 inner side surfaces of inserting are locking screw, insert 3 width, height dimension of screw thread inserted screw thread less than the chute size 3 in chute, to join with its gap; The bottom is set with fast extension bar 7 in the edge frame 1; Fast extension bar 7 is established a jump ring 6 with edge frame 1 bottom; Fast extension bar 7 has axial hole; Top extends to screw thread 3 positions of inserting, and establishes seal ring 4 at the upper end groove and be used for and pressure instrument 10 bottom end seal that insert, in the loop of fast extension bar 7 lower end cut-in pressure instrument detection devices; The lock sleeve 2 that can slide up and down is established in the outside of edge frame 1, and the top card between edge frame 1 and the lock sleeve 2 is established stopping back-up ring 9, sheathed spring 5 between lower space; Lock sleeve 2 inboards are cam structure; Be the cam structure of coupling with the screw thread of its butt 3 outer side surfaces of inserting, and leave cam path 11 between two cam structures, the screw thread 3 lower positions installing spreading spring 8 of inserting; Insert screw thread by spreading spring 8 and 3 to be pressed on lock sleeve 2 fitting surfaces; In lock sleeve 2 slides up and down, change to realize insert 3 radially forward and back (inside and outside slip) of screw thread with lock sleeve 2 camming surfaces, and can rotate together with lock sleeve 2, screw thread edge frame 1; Stopping back-up ring 9 and axle jump ring 6 are assembled together overall structure, and spring 5 is as the return force of lock sleeve 2, and the spreading force urges screw thread of spreading spring 8 is inserted and 3 slipped in the cam path of lock sleeve 2, accomplishes screw thread and throws off.

During use; The lock sleeve 2 of instrument fast connector is to lower slider; The insert cam of 3 outer contacting faces of lock sleeve 2 inboard cam structures and screw thread is sticked together by the elastic force of spreading spring 8 tightly, firmly depresses lock sleeve 2, and it is 3 outside along cam structure that screw thread is inserted; Four screw threads, 3 spreadings of inserting, the inipple of instrument 10 can directly insert; Unclamp lock sleeve 2; Under the effect of spring 5; Lock sleeve 2 self-returns simultaneously promote screw thread by its cam and insert and 3 hold tightly and connected instrument 10 screw threads, are equivalent to connected the screw thread state that instrument 10 screws in these degree of depth, and rotation lock cover 2 drives screw threads and inserts and 3 rotate together; This moment fast extension bar 2 with is connected 10 seal rings 4 of instrument and is compressed and forms sealing, completion rapid pipe joint and the connection that is connected instrument; After being connected instrument check and finishing, as long as press lock sleeve 2 down, screw thread is inserted and 3 is outwards retreated, and can directly take off by connection instrument 10.

The utility model instrument fast connector can the working pressure scope than broad, be applicable to the connection of various liquids and gases pressure medium instrument, (dismounting of general instrument all needs rotary threaded 6-10 circle fast; This connecting head helical thread portion directly inserts; Only need rotation just can lock less than 1 circle), laborsaving, sealing reliably, overall structure is simple; Easy operating satisfies industry usage requirement, initiates for industry instrument connects mode soon.

Claims

1. an instrument fast connector is characterized in that, comprises that edge frame, lock sleeve, screw thread are inserted, seal ring, fast extension bar, spring, spreading spring and stopping back-up ring, and wherein: said edge frame wall symmetry is offered a plurality of chutes, screw thread is installed in the groove is inserted; The bottom is set with fast extension bar in the edge frame, and fast extension bar is established a jump ring with edge frame bottom, and fast extension bar upper end is put seal ring; The lock sleeve that can slide up and down is established in the outside of edge frame, and the top draw-in groove between edge frame and the lock sleeve is established the stopping back-up ring, sheathed spring between lower space; The lock sleeve inboard is cam structure, is the cam structure of coupling with the screw thread of its butt outer side surface of inserting, and leaves cam path between two cam structures; The screw thread inner side surface of inserting is a locking screw, the screw thread lower position installing spreading spring of inserting.

2. according to the said instrument fast connector of claim 1, it is characterized in that said edge frame is a tubular, its wall is offered four chutes radially, and chute is a direct through groove, and screw thread is inserted in chute and its Spielpassung.