CN205573027U - Fluoroplastics heat exchange tube rivet expanded joint tightening latch uide bushing - Google Patents

Abstract

The utility model provides a fluoroplastics heat exchange tube rivet expanded joint tightening latch uide bushing, including leading in part, the connecting thread section, centre gripping section and direction section, leading in part, the connecting thread section, the centre gripping section connects gradually to a whole with the direction section, leading in part, the connecting thread section, the centre gripping section is opened with the center of direction section has the tightening latch cavity, the diameter phase -match of tightening latch cavity and tightening latch, the tightening latch can make a round trip freely to remove in the tightening latch cavity, leading in part's outside diameter is less than pneumatic rivet rifle opening diameter, the tightening latch uide bushing connects on pneumatic rivet rifle dop through the connecting thread section is fixed soon. Spur tightening latch expanded joint fluoroplastics through pneumatic rivet rifle and tightening latch uide bushing and manage the installation in metal top plate, this tightening latch uide bushing simple structure, good to neutrality, the support is reliable, and tightening latch pulling in -process can not be crooked, and the circumstances of the unilateral interlock of fluoroplastics pipe has firmly evenly reliably been stopped to the expanded joint, has improved expanded joint effect and reliability, and installation change maintenance is simple and convenient.

Description

A kind of fluoroplastics heat exchanger tube staking expanded joint tightening latch fairlead

Technical field:

This utility model relates to the pneumatic staking expanded joint of a kind of fluoroplastics heat exchanger tube and uses instrument, particularly relates to A kind of fixing staking expanded joint tightening latch fairlead.

Background technology:

The heat exchanger tube of metal material is now widely used a kind of heat transmission equipment, continuous along with people Using, use metal gradually to expose increasing shortcoming as the heat exchanger tube of material, one is that metal changes Heat pipe is the most corrosion-resistant, increasingly serious instantly in environmental pollution, the especially corruption such as chemical industry, medicine, pickling In erosion property industry, metallic recuperator is short for not only service life, also can produce security incident time serious；Two are Metallized metal heat exchanger along with use the time continuity, the schmutzband thickness of its heat-exchanging tube bundle be gradually increased and Heat transfer coefficient is made to be gradually lowered.Then fluorine plastic tube heat exchanger arises at the historic moment, due to the chemical of fluoroplastics Energy stabilizer pole etch resistant properties is excellent, and fluoroplastics heat exchanger tube wall surface is smooth and less scaling, work Time under the effect of fluid temperature variations heat-exchanging tube bundle easily the most both axially and radially direction frequently stretch, its result The favourable heat exchange of dirt can be removed.Fluorine plastic tube has many advantages compared with metal tube, perfectly solves The shortcoming of metallic heat exchanging tube.

At present, fluoroplastics heat exchanger tube mainly uses welding and expanded joint mode, and welding manner operation is loaded down with trivial details, Workload is relatively big, and inefficient, weld interval is longer.Expanded joint mode can be improved welding manner completely and deposit Drawback, be greatly improved work efficiency, and install and safeguard more convenient compared with welding manner.Expanded joint is Tightening latch is pulled to make the metallized metal irreversible support of expansion core outside diameter big by pulling force, so that fluorine plastic tube Generation elastic deformation is fixing with top board and cover plate to be engaged.Existing expanding joint method has Hydraulic expansion-jointing and pneumatic expanded joint Deng, hydraulic tube expander fabrication cycle length, volume are relatively big, transport is inconvenient, use trouble, installation time Longer, production efficiency is low；Hydraulic test is easily revealed after using time length, pollutes relatively big, maintenance cost Higher.Pneumatic expanded joint is mainly via Pneumatic hand riveter, and under the effect of individual event pulling force, stretching tightening latch also pushes away Squeeze metal expansion core, produce permanent fastening force.It is little that Pneumatic hand riveter has volume, and operating rate is fast, draws The features such as riveting strength is big, convenient and swift, attractive in appearance firmly, substantially increase work efficiency.But, existing The snap joint of Pneumatic hand riveter is shorter, and guidance quality, centering are general, and tightening latch inserts Pneumatic hand riveter folder Mouth position is more laborious, and Pneumatic hand riveter dop can only bite 3～5mm tightening latches, this staking mode pair In thicker top board and cover plate, without secure support, easily there is the phenomenon that tightening latch is crooked, causes gold in tightening latch Belong to expansion core expanded joint uneven, cause the phenomenon of the monolateral occlusion of fluorine plastic tube, affect expanded joint effect and firmness.

Utility model content:

The purpose of this utility model is to provide a kind of fluoroplastics heat exchanger tube staking expanded joint tightening latch fairlead, this bolt Tightening latch faster can be inserted Pneumatic hand riveter clamp mouth part by bar fairlead, and tightening latch is in fairlead inner clip Hold length long, guidance quality, centering are good, it is to avoid because tightening latch tilts the expanded joint caused during staking The problem such as occlusion uneven, monolateral, expanded joint are insecure.

A kind of fluoroplastics heat exchanger tube staking expanded joint tightening latch fairlead, is characterized in that: include introduction segment, connection Thread segment, gripping section and guide section, introduction segment, connection thread segment, gripping section and guide section are sequentially connected with Being an entirety, the center of introduction segment, connection thread segment, gripping section and guide section has tightening latch chamber, Tightening latch chamber matches with the diameter of tightening latch, and tightening latch can move freely in tightening latch chamber back and forth, introduction segment Outside diameter less than Pneumatic hand riveter opening diameter, by connecting, thread segment is fixing to spin tightening latch fairlead On Pneumatic hand riveter dop.

Using method of the present utility model is as follows:

Top board, buckle, cover plate and corrosion-resistanting decoration plate are fixedly mounted successively the top peace becoming fluorine plastic tube Assembling structure, has buckle mounting groove on top board, cover plate and corrosion-resistanting decoration plate, and buckle is fixedly mounted on card In catching groove, in buckle and top board, have fluorine plastic tube through hole is installed, fluorine plastic tube is closely sleeved on fluorine In plastic mounting through hole, metal expansion core is sleeved in fluorine plastic tube, and tightening latch includes pull bar section and expansion arc, The diameter of pull bar section is less than the aperture of metal expansion core, and the diameter of expansion arc is equal with the internal diameter of fluorine plastic tube, When preparing to install, first by pull bar section through metal expansion core, expansion arc in fluorine plastic tube, the pull bar of tightening latch Section exposes the partial-length length more than tightening latch fairlead of top board, by introduction segment and the company of tightening latch fairlead Connect thread segment to be inserted in the dop of Pneumatic hand riveter, clamp blessing section with spanner and rotate tightening latch fairlead, logical Crossing that connection thread segment and Pneumatic hand riveter are fixing to be connected, then the pull bar section by tightening latch exposes the part of top board Being inserted in the tightening latch chamber of tightening latch fairlead, pull bar section exposes the part of tightening latch fairlead by Pneumatic hand riveter Claw fix, the top of guide section is adjacent to metal expansion core, then presses the switch of Pneumatic hand riveter, logical Cross and pull tightening latch to make expansion arc pass metal expansion core, metal expansion core generation irreversible transformation, make metal expansion core Between outer wall and top board and the circular-hole internal-wall of buckle, close-fitting fluorine plastic tube is fixed with top board and buckle Occlusion, the top completing fluoroplastics heat exchanger tube is installed.

The beneficial effects of the utility model are as follows:

Owing to using this tightening latch fairlead can be by inside tightening latch quick insertion Pneumatic hand riveter, tightening latch be led simultaneously Can withstand metal expansion core to the top of set guide section, Pneumatic hand riveter can keep water pulling tightening latch when Put down, do not tilt.And owing to adding tightening latch fairlead, Pneumatic hand riveter dop can be advanced to retreat, use To obtain bigger opening so that tightening latch can enter inside hand riveter dop smoothly, is effectively improved tightening latch and enters Mouth speed, dop can the most quickly clamp tightening latch simultaneously.Drawn by Pneumatic hand riveter and tightening latch fairlead Dynamic tightening latch expanded joint fluorine plastic tube installation in metal top plate, this tightening latch guide sleeve structure is simple, centering Good, support reliable, will not be crooked in tightening latch drawing process, expanded joint is firmly the most reliable, has stopped fluorine and has moulded The situation of monolateral occlusion managed by material, improves expanded joint effect and reliability, installs replacing and safeguards simple and convenient.

Accompanying drawing illustrates:

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

Fig. 2 is the structural representation of tightening latch；

Fig. 3 is use view of the present utility model；

In figure: 1-introduction segment；2-connects thread segment；3-gripping section；4-guide section；5-tightening latch chamber； 6-tightening latch；7-top board；8-buckle；9-cover plate；10-corrosion-resistanting decoration plate；11-metal expansion core；61-pull bar Section；62-expansion arc.

Detailed description of the invention:

Detailed description of the invention of the present utility model is described below in conjunction with the accompanying drawings:

A kind of fluoroplastics heat exchanger tube staking expanded joint tightening latch fairlead, as Figure 1-3, including introduction segment 1, Connect thread segment 2, gripping section 3 and guide section 4, introduction segment 1, connection thread segment 2, gripping section 3 Being sequentially connected with guide section 4 is an entirety, introduction segment 1, connects thread segment 2, gripping section 3 and lead Have tightening latch chamber 5 to the center of section 4, tightening latch chamber 5 matches with the diameter of tightening latch 6, tightening latch 6 Can move freely back and forth in tightening latch chamber 5, the outside diameter of introduction segment 1 is less than Pneumatic hand riveter opening Diameter, by connecting, thread segment 2 is fixing to be screwed on Pneumatic hand riveter dop tightening latch fairlead.

Using method of the present utility model is as follows:

Top board 7, buckle 8, cover plate 9 and corrosion-resistanting decoration plate 10 are fixedly mounted successively and becomes fluorine plastic tube Top installation structure, has buckle mounting groove, buckle 8 on top board 7, cover plate 9 and corrosion-resistanting decoration plate 10 It is fixedly mounted in buckle slot, in buckle 8 and top board 7, has fluorine plastic tube through hole is installed, by fluoroplastics Pipe is closely sleeved on fluoroplastics and installs in through hole, and metal expansion core 11 is sleeved in fluorine plastic tube, and tightening latch 6 wraps Including pull bar section 61 and expansion arc 62, the diameter of pull bar section 61 is less than the aperture of metal expansion core 11, expansion arc 62 Diameter equal with the internal diameter of fluorine plastic tube, when preparing to install, first by pull bar section 61 through metal expansion core 11, Expansion arc 62 is in fluorine plastic tube, and the pull bar section 61 of tightening latch 6 is exposed the partial-length of top board 7 and led more than tightening latch To the length of set, the introduction segment 1 of tightening latch fairlead and connection thread segment 2 are inserted in the dop of Pneumatic hand riveter In, clamp blessing section 3 with spanner and rotate tightening latch fairlead, solid with Pneumatic hand riveter by connecting thread segment 2 Fixed connection, the part that then the pull bar section 61 of tightening latch 6 is exposed top board 7 is inserted in the tightening latch chamber of tightening latch fairlead In room 5, pull bar section 61 is exposed the part of tightening latch fairlead and is fixed by the claw of Pneumatic hand riveter, guide section 4 Top be adjacent to metal expansion core 11, then press the switch of Pneumatic hand riveter, swollen by pulling tightening latch 6 to make Swollen section 62 pass metal expansion core 11, there is irreversible transformation in metal expansion core 11, make metal expansion core 11 outer wall with Between the circular-hole internal-wall of top board 7 and buckle 8, close-fitting fluorine plastic tube is fixed sting with top board 7 and buckle 8 Closing, the top completing fluoroplastics heat exchanger tube is installed.

Claims (1)

1. a fluoroplastics heat exchanger tube staking expanded joint tightening latch fairlead, is characterized in that: include introduction segment (1), Connect thread segment (2), gripping section (3) and guide section (4), introduction segment (1), connection thread segment (2), It is an entirety that gripping section (3) and guide section (4) are sequentially connected with, introduction segment (1), connect thread segment (2), The center of gripping section (3) and guide section (4) has tightening latch chamber (5), tightening latch chamber (5) and tightening latch (6) Diameter match, tightening latch (6) can move freely in tightening latch chamber (5) back and forth, introduction segment (1) Outside diameter is less than Pneumatic hand riveter opening diameter, and by connecting, thread segment (2) is fixing to spin tightening latch fairlead On Pneumatic hand riveter dop.