CN2237771Y

CN2237771Y - Quick-acting joint

Info

Publication number: CN2237771Y
Application number: CN 95226333
Authority: CN
Inventors: 王正茂
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-23
Filing date: 1995-11-23
Publication date: 1996-10-16
Anticipated expiration: 2005-11-23

Abstract

The utility model provides a quick-acting joint for quick and safe connection, which is composed of a tube joint, a cap nut screwed with the tube joint and a sleeve. The sleeve is a sheath-shaped body with apertures along the overall width and cone segments on the two sides. The sleeve and a connecting tube are movably sheathed. The inner holes of two external screw thread segments of the tube joint are taper holes which are sheathed and matched with one cone segment of the sleeve. The external segment of the inner hole of the cap nut is a taper-shaped hole sheathed with the other cone segment of the sleeve. When the cap nut is screwed tightly, the sleeve is gradually wedged into the inner cone hole of the joint along the axial direction, and can be compressed along the radial direction so as to realize the lacing with the connecting pipe.

Description

Connect fast and use joint

The utility model relates to a kind of connection device, particularly a kind ofly is used to build the quick connection joint that is connected with pipeline.

Development along with construction and decoration in modern age and hardware facility, in its support body or lay in the pipeline interconnecting of pipe bar and become necessaryly, and be again large batch of, therefore, its structure that connects with joint is then determining to take group or joint efficiency and quality, and is used for should guaranteeing sealing when pipeline connects.

Fig. 1 is the structural perspective of existing muff joint, and it utilizes muff joint 51 to remove to engage pipe 41, but its connection and unreliable and tight, easily generation gets loose or leaks.Fig. 2 is that a kind of threaded pipe connects, utilize the joint 50 of band internal thread 53 to go to be connected with pipe 4 with outside thread 41, but because this kind Placement need process screw thread in the equal car system in the two ends of each root pipe 4, and it is time-consuming relatively to require great effort than long pipe machining screw, and cost is higher, and destroyed the body outward appearance, and when connecting, it is hard also to take a lot of work, thus, the construction cost of this pipe joint is big and efficiency of construction is low.Particularly then can't re-use after corrosion of pipe two ends screw thread or the damage.Can cause bigger waste.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of prior art, and provides a kind of connection rapid, safe and reliable, easy to use, the quick connection joint of good seal.

The purpose of this utility model is to realize by following technological scheme:

It is by pipe joint, constitute with nut and sleeve that pipe joint is screwed mutually, sleeve is one to slit along overall with the seam that slits being arranged, both sides are provided with the sleeve shape body of awl section, sleeve and connecting tube be movable set mutually, and the endoporus of two external thread sections of pipe joint is and the sleeve one awl section taper hole that coincide of sleeve mutually, the endoporus segmentum laterale of nut be one with another awl of sleeve tapered hole of cuff section mutually, when screwing nut, sleeve can be by tightening of radially compressing and realize and take over when wedging the joint internal taper hole vertically gradually.

Therefore: remarkable result of the present utility model is:

The 1st: because the setting of taper sleeve of cracking, make it both satisfy quick fit before screwing with the end of taking over, can reach again screw behind the nut radially shrink and with the double effects of taking over being connected of tightly tightening and sealing.

The 2nd: owing to taking over and being being connected of joint to realize radially holding tightly with the fastening force of the complete circumferential homogeneous in a kind of edge, therefore, it tightens face greatly and the power of tightening is strong, both has been difficult for getting loose, and body is also not yielding impaired.

The the 3rd: need not machining screw on taking over, so have low cost.Unload prescription just and laborsaving again fast.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing thereof.

Fig. 1 is one of structural type of existing pipe joint;

Fig. 2 be existing pipe joint structural type two;

Fig. 3 is STRUCTURE DECOMPOSITION figure of the present utility model;

Fig. 4 is the section of structure after Fig. 3 makes up;

Fig. 5 is several structural type figure that Fig. 3 middle sleeve cracks.

Below in conjunction with accompanying drawing 3-5 concrete structure of the present utility model is described in detail.

The utility model has one to have two external thread sections 12 and have the joint 1 of through hole 14, what screw connection mutually with external thread section 12 is one to be provided with the nut 2 of inner bolt hole 22, it is characterized in that: between the internal taper hole section 23 of the taper hole section 13 of joint 1 and nut 2, be provided with and take over 4 sleeves 3 of fit mutually, full duration along sleeve 3 offers sealing 31, and two

awl sections

34 and 35 of the internal taper hole section 23 of nut 2 and the internal taper hole section 13 of joint 1 and sleeve 3 are cuff and sleeve 3 tightened taking on 4 mutually.Referring to Fig. 3 to Fig. 5.

Structure characteristic of the present utility model also is:

The two

awl sections

34 and 35 that sleeve 3 distributes vertically all are the conical ring shape that is inwardly increased gradually by the outer end, be identical tapering variation with the internal taper hole section 23 of the nut 2 of boring section 35 phase cuffs with the tapering kissing merging of boring section 35, with awl section 34 mutually the tapering kissing of tapering and the awl section 34 of the internal taper hole section 13 of the joint 1 of cuff merge and be by big gradually little contraction-like, the sealing 31 on the sleeve 3 be provided with mutual assembly to or the positioning section vertically 32 of the complementary complications that embed.Referring to Fig. 3 to Fig. 5.

The shape of offering of the axially locating section 32 on the sealing 31 on the sleeve 3 is Shape or Shape or

Or zigzag fashion.Referring to Fig. 3 and Fig. 5.

Using method of the present utility model is as follows:

When nut 2 is screwed with the thread section 12 of joint 1, the internal taper hole section 23 of nut 2 can compress sleeve 3 in wedging joint 1 taper hole 13 vertically, referring to Fig. 4, because sleeve 3 has the sealing 31 of perforation, so it can be because tapering variation former thereby radially shrink and realize and take over 4 hold tightly when compressing vertically.Nut 2 with taper hole 23 corresponding outer circumferential faces on be provided with circular arc along 21.

Owing to the utlity model has These characteristics, what not only can be used for water transport pipeline lays connection fast, and has fine sealing effect, and, can be used for interconnecting of road construction and pipe for building.

Claims

1, connect fast and use joint, have one to have two external thread sections (12) and have the joint (1) of through hole (14), what screw connection mutually with external thread section (12) is one to be provided with the nut (2) of inner bolt hole (22), it is characterized in that: between the internal taper hole section (23) of the taper hole section (13) of joint (1) and nut (2), be provided with and take over (4) sleeve of fit (3) mutually, full duration along sleeve (3) offers sealing (31), and two awl sections (34) and (35) of the internal taper hole section (23) of nut (2) and the internal taper hole section (13) of joint (1) and sleeve (3) are cuff and sleeve (3) tightened in adapter (4) mutually.

2, according to the described quick connection joint of claim 1, it is characterized in that: the two awl sections (34) and (35) that sleeve (3) distributes vertically all are the conical ring shape that is inwardly increased gradually by the outer end, be identical tapering variation with the internal taper hole section (23) of the nut (2) of boring section (35) phase cuff with the tapering kissing merging of boring section (35), with awl section (34) mutually the tapering kissing of tapering and the awl section (34) of the internal taper hole section (13) of the joint of cuff (1) merge and be by big gradually little contraction-like, the sealing (31) on the sleeve (3) be provided with mutual assembly to or the positioning section vertically (32) of the complementary complications that embed.

3, according to the described quick connection joint of claim 2, it is characterized in that: the shape of offering of the axially locating section (32) on the sealing (31) on the sleeve (3) is

Shape or

Shape or Or zigzag fashion.