CN201157874Y

CN201157874Y - Ring compression tool for pipe fitting joint

Info

Publication number: CN201157874Y
Application number: CNU2007201750744U
Authority: CN
Inventors: 卜莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-05
Filing date: 2007-12-05
Publication date: 2008-12-03
Anticipated expiration: 2017-12-05

Abstract

The utility model provides a pipe connection ring crush tool, which comprises a cylinder, a lower tong jaw, a sliding block, a lower fixed module, an upper tong jaw, an upper fixed module, an upper press plate, a lower press plate and a movable module. Limiting posts are arranged on the movable module; two limiting post chutes are arranged on the lower press plate; the limiting posts are correspondingly arranged in the limiting post chutes; the upper fixed module, the lower fixed module and the movable module form a ring crush mould; a chamfering inner wall is arranged at the jaw part of the upper tong jaw; a chamfering inner wall is arranged at the notch part of a groove of the sliding block; the movable module comprises an upper stress outer wall and a lower stress outer wall; a chamfering inner wall is arranged corresponding to the upper and the lower stress walls. The ring crush tool has the advantages of uniform force applied to pipe fittings, accurate shrinkage force, strong connection, convenience for improving ring crush quality, fewer parts, easy processing and manufacture, low cost and long service life.

Description

Pipe fitting connecting ring press tool

Technical field

The utility model relates to a kind of metal tube fastening means, specifically, relates to a kind of pipe fitting connecting ring press tool.

Background technology

Existing thin wall metal pipeline connects more and more to have adopted to encircle presses ways of connecting, and this connected mode need not be reprocessed pipe fitting, and ring presses operation few, technology is simple, connect high efficiency, be easy to learn and use, be fit to very much the connection of existing thin-wall metal pipe; But adopt ring to press the thin-wall metal pipe quality of connection of connected mode often to depend on the structural design of ring-pressing tool, therefore, the connection of thin-wall metal pipe is very high to the requirement of ring-pressing tool.

China Patent No. is 200520036619.4, denomination of invention discloses a kind of ring pressure type steel pipe fastening means for the utility model patent of " ring-pressing tool that a kind of connecting tube is used ", this ring-pressing tool ring is pressed easy to connect, compare characteristics with traditional ring-pressing tool, be beneficial to and improve ring pressure quality with multimode; But in actual applications, be not difficult to find its complex structural designs, the connection of especially upper and lower module, location structure, in use, there was a mechanical failure easily, in addition, its parts are various, and complex structure, be not easy to make the processing cost height, it is high to make that this ring-pressing tool cost occupies, and is unfavorable for applying.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of structural design is ingenious, ring pressure quality is good, cost is low, the pipe fitting connecting ring press tool of long service life thereby provide.

Goal of the invention of the present utility model is to realize by following technical scheme:

A kind of pipe fitting connecting ring press tool, comprise oil cylinder, be arranged on the lower pliers head of oil cylinder piston end, be arranged on the slide block in the lower pliers head jaw, be arranged on the following stuck-module in the slide block notch, with the lower pliers head upper grip head that is connected alive, be arranged on the last stuck-module in the upper grip head jaw, and be crimped on top board on upper grip head and the last stuck-module, wherein, described slide block butts up against described upper grip head jaw bottom, and described oil cylinder piston connects described slider bottom, and described stuck-module two ends down connect an active module by spring respectively, described active module is provided with a limited post, be crimped with lower platen on described slide block and described following stuck-module, described lower platen is provided with twice limited post chute, and described limited post correspondence is arranged in the described limited post chute; The described inner surface of stuck-module, the inner surface of described stuck-module down and the inner surface of described active module gone up constitutes circular hole in the ring pressing mold; Described upper grip head jaw both sides are respectively arranged with an active module upper outside application of force chamfering inwall, and described slide block notch both sides are respectively arranged with the outside, active module bottom application of force chamfering inwall; Described active module lateral surface comprises the stressed outer wall of stressed outer wall in active module top and active module bottom, the corresponding stressed outer wall setting in described active module top of described active module upper outside application of force chamfering inwall, the corresponding stressed outer wall setting in described active module bottom of the outside, described active module bottom application of force chamfering inwall.

Described active module outer end is provided with buffering and goes up the spring that stuck-module is used.

The described stuck-module both ends of going up are provided with the spring that the buffering active module is used.

Described spring is a frustum formula spring.

The utility model has substantive distinguishing features and progressive with respect to prior art, specifically, following beneficial effect is arranged:

1, the stuck-module of this ring-pressing tool and active module annexation are simple, firm, no excessive zero parts, and the extruding of being convenient between stuck-module and the active module is gathered, and is beneficial to improve ring pressure quality.

2, this ring-pressing tool adopts the internal structure of slide block and upper grip head, ten squarely gather the extruding of stuck-module and active module to form the circular rings pressing mold promptly, make the suffered strength uniformity of stuck-module and active module, the contraction dynamics is accurate, the fold phenomenon that has occurred after having avoided steel pipe by pressing fully, and reduced the extrusion abrasion of stuck-module and active module, prolonged its service life;

3, the active module spacing slotted eye that slides is set on the slide block pressing plate, is beneficial to the connectivity robustness that improves active module and the precision of tracks;

4, this ring-pressing tool structural design is ingenious, simple and practical, and ring presses quality good, be connected firmly, and long service life, and be easy to processing and manufacturing, cost is low.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the positional structure schematic diagram between upper grip head, slide block, stuck-module and the active module.

The specific embodiment

For advantage of the present utility model and technical characterictic further are described, provide the specific embodiment of the present utility model below in conjunction with accompanying drawing:

As shown in Figure 1, a kind of pipe fitting connecting ring press tool, comprise oil cylinder 1, be arranged on lower pliers head 2 with oil cylinder piston 3 one ends, be slidingly arranged in the slide block 4 in lower pliers head 2 jaws, be fixedly installed on the following stuck-module 7 in slide block 4 notches, with lower pliers head 2 upper grip heads 5 that are connected alive, be fixedly installed on the last stuck-module 6 in upper grip head 5 jaws, and be crimped on top board 9 on upper grip head 5 and the last stuck-module 6 by bolt, wherein, described slide block 4 tops butt up against described upper grip head 5 jaw bottoms, described oil cylinder piston 3 pushing tows in or live and to be connected in described slide block 4 bottoms, by pin the live pin-and-hole 20 that connects lower pliers head 2 and the pin-and-hole 21 of upper grip head 5;

Described stuck-module 7 two ends down are by spring (12,13) correspondence is connected with active module (8,11), described active module (8,11) go up correspondence and be provided with limited post (14,15), be crimped with lower platen 10 by bolt on described slide block 4 and described following stuck-module 7, described lower platen 10 is provided with the limited post chute (18 that twice have arc, 19), described limited post (14,15) correspondence is arranged in the described limited post chute (18,19); By this structure active module is carried out spacing, and accurate its movement locus;

As shown in Figure 2, the described inner surface of stuck-module 6, the inner surface of described stuck-module 7 down and the inner surface of described active module (8,11) gone up constitutes circular hole in the ring pressing mold;

The jaw both sides of described upper grip head 5 correspondence be provided with active module upper outside application of force chamfering inwall (5a, 5b), the notch both sides of described slide block 4 correspondence be provided with active module bottom outside application of force chamfering inwall (4c, 4d);

Described active module 8 lateral surfaces comprise stressed outer wall 8a in active module top and the stressed outer wall 8c in active module bottom, and described active module 11 lateral surfaces comprise stressed outer wall 11b in active module top and the stressed outer wall 11d in active module bottom;

Two described active module upper outside application of force chamfering inwall (5a, 5b) corresponding two stressed outer wall (8a in described active module top, 11b) be provided with, the outside, two described active module bottoms application of force chamfering inwall (4c, 4d) (8c 11d) is provided with corresponding two stressed outer walls in described active module bottom;

The described lateral surface of stuck-module 6, the described lateral surface and the described active module (8 of stuck-module 7 down gone up, 11) lateral surface is after stressed gathering, make described stuck-module 6, described stuck-module 7 down and the described active module (8,11) gone up constitute a ring pressing mold with the stressed lateral surface of decagon;

The jaw medial surface of described upper grip head 5, the notch medial surface of described slide block 4, active module upper outside application of force chamfering inwall (5a, 5b) with the outside, active module bottom application of force chamfering inwall (4c, 4d) after stressed gathering, make described upper grip head 5 and described slide block 4 constitute the outer seat of the ring pressing mold with decagon application of force inwall;

The decagon application of force inwall of the outer seat of described ring pressing mold fits like a glove with the stressed lateral surface shape and structure of decagon of described ring pressing mold, be beneficial to stressed evenly, be beneficial to ring pressure precision.

(4c, 4d) upper end butts up against described active module upper outside application of force chamfering inwall (5a, 5b) bottom is carried out spacing effect to play to described slide block 4 movement locus described active module bottom outside application of force chamfering inwall.

The outer end correspondence of two described active modules (8,11) is provided with buffering and goes up the spring (16,17) that stuck-module is used;

In the utility model, described spring (12,13,16,17) is a frustum formula spring, and frustum formula spring is difficult for tilting when stressed extruding, and is stressed comparatively even.

Of particular note, in other embodiment the inside, can be that the stuck-module both ends are provided with the spring that the buffering active module is used on described, and described spring be a frustum formula spring.

Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.

Claims

1, a kind of pipe fitting connecting ring press tool, comprise oil cylinder, be arranged on the lower pliers head of oil cylinder piston end, be arranged on the slide block in the lower pliers head jaw, be arranged on the following stuck-module in the slide block notch, with the lower pliers head upper grip head that is connected alive, be arranged on the last stuck-module in the upper grip head jaw, and be crimped on top board on upper grip head and the last stuck-module, wherein, described slide block butts up against described upper grip head jaw bottom, and described oil cylinder piston connects described slider bottom, it is characterized in that: described stuck-module two ends down connect an active module by spring respectively, described active module is provided with a limited post, be crimped with lower platen on described slide block and described following stuck-module, described lower platen is provided with twice limited post chute, and described limited post correspondence is arranged in the described limited post chute; The described inner surface of stuck-module, the inner surface of described stuck-module down and the inner surface of described active module gone up constitutes circular hole in the ring pressing mold; Described upper grip head jaw both sides are respectively arranged with an active module upper outside application of force chamfering inwall, and described slide block notch both sides are respectively arranged with the outside, active module bottom application of force chamfering inwall; Described active module lateral surface comprises the stressed outer wall of stressed outer wall in active module top and active module bottom, the corresponding stressed outer wall setting in described active module top of described active module upper outside application of force chamfering inwall, the corresponding stressed outer wall setting in described active module bottom of the outside, described active module bottom application of force chamfering inwall.

2, pipe fitting connecting ring press tool according to claim 1 is characterized in that: described active module outer end is provided with buffering and goes up the spring that stuck-module is used.

3, pipe fitting connecting ring press tool according to claim 1 is characterized in that: the described stuck-module both ends of going up are provided with the spring that the buffering active module is used.

4, according to claim 1 or 2 or 3 described pipe fitting connecting ring press tools, it is characterized in that: described spring is a frustum formula spring.