CN201271860Y

CN201271860Y - Tool for connecting pipeline by manual hydraulic pressure

Info

Publication number: CN201271860Y
Application number: CNU2008201162501U
Authority: CN
Inventors: 曹建宇
Original assignee: 曹建宇
Current assignee: Zhejiang Sejin Water Industry Co., Ltd.
Priority date: 2008-05-20
Filing date: 2008-05-20
Publication date: 2009-07-15
Anticipated expiration: 2018-05-20

Abstract

The utility model discloses a manual hydraulic pipeline connecting tool, in particular to a special tool which uses the pressure produced by a manual hydraulic pump to frap the pipeline socket-ring in accordance with the socket-ring frapping method and press the pipeline socket-ring onto the pipeline connector. The fixed pressing tongs head and slide pressing tongs head (which are used to frap the socket-ring) on the tool are detachable, replaceable and assembled; a thrust splaying taper-claw can also be mounted at the front end part thereof, thereby, the two procedures for connecting the expansion pipe of the pipeline and frapping the socket-ring can be finished by a manual hydraulic pump. The manual hydraulic pipeline connecting tool has the advantages of simple structure, compact size, low cost and high durability, and the tool is applicable to the connecting PEX pipelines with various specifications.

Description

A kind of instrument of hand-hydraulic connecting pipe

Technical field

The utility model is the instrument that a kind of connecting pipe is used, and is specifically related to a kind of hydraulic technique of utilizing a kind of special pipeline (PEX pipe) is tightened up the hand-hydraulic instrument of gland on conduit coupling by the method for attachment of " it is around-France to tighten up cover " with the collar.

Background technology

We use to such an extent that the method for attachment of increasing PEX pipe (crosslinked polyethylene from high pressure process pipeline) has multiple now, wherein both economical and firm method is " it is around-France to tighten up cover ", its principle is to be enclosed within on the corresponding conduit coupling after first spout diameter with the PEX pipe swells slightly, put the collar at connecting portion again, with special-purpose pressing tongs with the collar tighten up, gland is on conduit coupling and form permanent type and connect.The pressing tongs that this connecting pipe is used, mechanical effort is bad easily again, electro-hydraulic heavy inconvenience and price height, the thrust that dilates pipeline is opened the awl pawl and is also needed to be installed on a kind of Pipe expanding tongs of special use and could use.The inventor is owing to be engaged in this pipe fitting, and the instrument of this hand-hydraulic connecting pipe has been made in invention.The actual proof of using, this instrument simple economy, convenient light and handy, sturdy and durable is worthy to be popularized very much.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the complicated effort of existing instrument, heavy, the high shortcoming of damaging easily again of cost, and a kind of instrument of rational in infrastructure, cheap, easy to use, sturdy and durable, widely used connecting pipe is provided.

The purpose of this utility model is to realize like this, the pressure output of this instrument (dotted portion among Fig. 1) is common hydraulic hand-pump, operation principle is when depressing the hydraulic pump handle, hydraulic oil promotes hydraulic piston and acts on the component head, the component head drives slide awl bar and the reach of slip pressing tongs head, thereby the effect of the awl bar reach of sliding is to back down thrust to open the awl pawl PEX pipeline that is enclosed within on the awl pawl is swollen, and the effect of slip pressing tongs head reach is to tighten up and push on the conduit coupling being enclosed within the collar on the PEX pipeline.The thrust of this utility model instrument is opened the awl pawl, fixedly pressing tongs head, slip pressing tongs head all can be dismantled and use by big or small caliber of difference and length assembling, the pressing tongs head of detachable assembling has (as Fig. 4) of both sides opening, four limit openings (as Fig. 5, Fig. 6) or polygon opening are also arranged, there be equally spaced (as Fig. 2) that unequal-interval (as Fig. 3, Fig. 5, Fig. 6) also arranged, the process of how to press conduit coupling assembling pressing tongs head and connecting pipe comes into plain view, and is very convenient.

Description of drawings

Fig. 1 is the structure chart of the utility model instrument

Fig. 2 is the outside drawing of the utility model instrument

Fig. 3 has assembled the not outside drawing (part does not contain hydraulic pump) of equidistant pressing tongs head for the utility model instrument.

Fig. 4 is the profile and the plane (C, F) of the knocked-down fixedly pressing tongs of the utility model instrument head (A, D) and slip pressing tongs head (B, E), and wherein the spacing of both sides prong is unequal about D and the E.

Fig. 5 is the profile and the plane of slip pressing tongs head of four limit openings of the utility model instrument.

Fig. 6 is the profile and the plane of fixedly pressing tongs head of four limit openings of the utility model instrument.

Among the figure: 1.-the hydraulic pump handle, 2.-the hydraulic pump valve piston, 3.-the hydraulic pump big piston, 4.-the component head, 5.-slip pressing tongs head attachment pegs, 6.-slip pressing tongs head, 7.-fixedly pressing tongs head, 8.-location guide, 9.-the awl bar that slides, 10.-thrust opens awl pawl seat

-thrust is opened the awl pawl,

-return spring,

-return oil cylinder sieve silk,

-hydraulic cylinder,

-return oil cylinder,

-handle.

The specific embodiment

Be described further below in conjunction with the specific embodiment of accompanying drawing the utility model instrument.

Referring to figure (1), the corresponding collar of PEX pipeline that will be connected with needs is enclosed within on the pipeline of needs connections, the pipeline opening of the PEX pipe of needs connection is inserted in thrust opens the awl pawl

On, screw return oil cylinder sieve silk

One holds this utility model handle for tool On the other hand 1., drive the hydraulic pump valve piston 2. constantly with the return oil cylinder toward rereeling hydraulic fluid press pump handle

In hydraulic oil be pressed into hydraulic cylinder

3. and promote the component head and 4. in location guide inner chamber 8., move forward thereby promote the hydraulic pressure big piston, make to be installed in slip awl bar that 4. the component head go up and 9. to move forward and pass thrust and open awl pawl seat and 10. back down thrust and open the awl pawl

Make and be enclosed within thrust and open the awl pawl

On the PEX pipe dilate out.Unclamp return oil cylinder sieve silk Return spring

9. back into initial position with being connected in the slip awl bar that 4. the component head go up.

Take off the PEX pipe box that dilated on corresponding pipe fitting to be connected, push to the collar that need tighten up, with pipe fitting, pipe, the collar be contained in together slip pressing tongs head 6. with fixing pressing tongs head prong 7. on, screw return oil cylinder sieve silk

Toward rereeling hydraulic fluid press pump handle 4. the component head is moved forward as in the previous, the component head is 4. when 9. promotion slip awl bar moves forward, 5. drive slip pressing tongs head by slip pressing tongs head attachment pegs and 6. move forward, the collar that is enclosed within on the PEX pipe is tightened up and push into conduit coupling.Unclamp return oil cylinder sieve silk

Return spring

Push back the component head 4., slide the awl bar 9., 3. 6. slip pressing tongs head reach the hydraulic pressure big piston, hydraulic cylinder

In hydraulic oil flow into the return oil cylinder

In, instrument is returned to initial position.

The fixedly pressing tongs head of the detachable assembling of this utility model instrument and slip pressing tongs head have both sides all to be useful on to tighten up the prong that the collar is used, and as A, B, the C of Fig. 4, and have by caliber and vary in size and the corresponding different description of prong both sides size, as the C of Fig. 4.Bottom is used to tighten up 16 millimeters collars of ￠, and the top is used to tighten up 20 millimeters collars of ￠.In addition, the difference of the pipeline collar length of tightening up as required also has long spacing and short spacing pressing tongs head, as D, the E of Fig. 4.Fig. 3 is exactly D, the E of Fig. 4, the outside drawing after the F assembling, and Fig. 3 figure below is the form that this utility model instrument unclamps, and the last figure of Fig. 3 is the form after this instrument tightens up.Its embodiment is: when the pipe fitting collar that tightens up when needs is grown (as 25 millimeters collars of ￠ and the 32 millimeters collars of ￠ or the longer collar), can be earlier after the prong (the last figure of Fig. 3 and the top of figure below) of long spacing pressing tongs head tightens up a section of the collar, finish the work of all tightening up the collar at short spacing pressing tongs head prong (the last figure of Fig. 3 and the bottom of figure below) again.Such as in the time 32 millimeters collars of ￠ of 90 millimeters long need being tightened to 30 millimeters, only need earlier this collar to be stuck in long spacing this side (being the top of Fig. 3 figure below) prong and tighten up 30 millimeters earlier, promptly be tightened to 60 millimeters (as tops of the last figure of Fig. 3) earlier, unclamp again slip pressing tongs head with the collar be stuck in short spacing here (bottom of Fig. 3 figure below) tighten up remaining 30 millimeters (being tightened to the shape of the last figure of Fig. 3 bottom) and get final product, and needn't use the instrument of 90 millimeters strokes.

The utility model instrument dilates pipeline and tightens up two step of collar job step owing to only having adopted a hydraulic hand-pump to finish, and can finish large diameter pipeline on the instrument of short stroke connects, thereby reduced the instrument cost greatly, alleviated instrument weight, having improved operating efficiency, is a kind of good tool that is worth of widely use really.

Claims

1, a kind of instrument of hand-hydraulic connecting pipe, it is characterized in that dilating the pressing tongs part that the thrust of the detachable assembling of pipeline opening is opened the awl pawl and the cinch tube pipe connecting collar, be combined into one with the hydraulic hand-pump that produces thrust and tightening force, the instrument of a hand-hydraulic connecting pipe generally can be used to dilate pipeline, can be used to tighten up the collar again.

2, hand-hydraulic connecting pipe instrument according to claim 1, the fixedly pressing tongs head and the slip pressing tongs head four directions that it is characterized in that detachable assembling, or two side or all be useful in many ways and tighten up the prong that the collar is used, four directions, two sides or prong size in many ways have identical also have different, the open distance of prong can equate, also can be unequal.

3, hand-hydraulic connecting pipe instrument according to claim 1 is characterized in that the fixedly pressing tongs head of detachable assembling and spacing between the prong of slip pressing tongs head both sides have also having of equating unequal.

4, hand-hydraulic connecting pipe instrument according to claim 1, the thrust that dilates pipeline opening that it is characterized in that detachable assembling is opened awl pawl seat and can be installed on the location guide of this connecting pipe instrument, also can not be installed on the location guide and uses separately.

5, hand-hydraulic connecting pipe instrument according to claim 1 is characterized in that hand-hydraulic instrument that installed thrust does not open the awl pawl can connect pincers as the hand-hydraulic pipeline separately and use.