CN111664305A - Anti-disassembly type pipe joint nut - Google Patents

Anti-disassembly type pipe joint nut Download PDF

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Publication number
CN111664305A
CN111664305A CN202010457581.7A CN202010457581A CN111664305A CN 111664305 A CN111664305 A CN 111664305A CN 202010457581 A CN202010457581 A CN 202010457581A CN 111664305 A CN111664305 A CN 111664305A
Authority
CN
China
Prior art keywords
arc
disassembly
shaped plates
block
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010457581.7A
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Chinese (zh)
Inventor
骆红刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sairi Electromechanical Technology Co ltd
Original Assignee
Zhejiang Sairi Electromechanical Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Sairi Electromechanical Technology Co ltd filed Critical Zhejiang Sairi Electromechanical Technology Co ltd
Priority to CN202010457581.7A priority Critical patent/CN111664305A/en
Publication of CN111664305A publication Critical patent/CN111664305A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/02—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts
    • F16B7/025—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts with the expansion of an element inside the tubes due to axial movement towards a wedge or conical element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
    • F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/16—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars
    • F16L13/166—Deformed by radially expanding an inner part

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The invention provides an anti-disassembly type pipe joint nut. Anti-disassembly formula pipe joint nut includes: a sleeve; the tight subassembly expands, the tight subassembly that expands is located in the cover pipe, the tight subassembly that expands includes the fixed block, fixed block fixed mounting is in on the sheathed tube inner wall, the equal mutual fixed mounting in both sides of fixed block has four arcs, four the arc is the arc array and distributes, four the arc all contactless and interval between two adjacent arcs is the same, four sliding sleeve is equipped with the annular slab on the arc, circle fixed mounting has four dead levers, four in the annular slab the dead lever is the annular array and distributes. The anti-disassembly pipe joint nut provided by the invention can fix the inner wall of the pipeline by the plastic deformation of the four arc-shaped plates in the expansion mechanism, and the pipeline is more difficult to disassemble, so that the anti-disassembly device has the anti-disassembly effect.

Description

Anti-disassembly type pipe joint nut
Technical Field
The invention relates to the technical field of pipe joint nuts, in particular to an anti-disassembly pipe joint nut.
Background
When the pipeline was installed, can use the nut to connect two pipelines in coupling department, however, traditional union nut generally does not have the function of anti-disassembly to, it is not hard up because of the union nut that the vibration leads to the artificial rotation union nut in later stage or because of the union nut that the vibration leads to, thereby causes the tube coupling insecure.
Therefore, it is necessary to provide an anti-disassembly type union nut to solve the above technical problems.
Disclosure of Invention
The invention aims to provide an anti-disassembly pipe joint nut.
In order to solve the above technical problems, the present invention provides an anti-disassembly type pipe coupling nut, comprising: a sleeve; the expansion assembly is arranged in the sleeve and comprises fixed blocks, the fixed blocks are fixedly arranged on the inner wall of the sleeve, four arc-shaped plates are fixedly arranged on two sides of each fixed block, the four arc-shaped plates are distributed in an arc array, the four arc-shaped plates are not in contact with each other, the distance between every two adjacent arc-shaped plates is the same, annular plates are slidably sleeved on the four arc-shaped plates, four fixed rods are fixedly arranged on the inner rings of the annular plates and distributed in an annular array, the fixed rods are respectively inserted into gaps formed by the two adjacent arc-shaped plates and are in contact with the corresponding arc-shaped plates, one end of each movable rod is fixedly arranged on the four fixed rods, an expansion block is arranged at one end of each movable rod, and the expansion blocks are matched with the four annular plates;
one end of each moving rod, which is far away from the expansion block, is connected with an inner limiting ring through a plurality of connecting rods distributed circumferentially, a gap is reserved between the outer wall of the inner limiting ring and the inner wall of the arc-shaped plate, and the inner limiting ring and the annular plate are distributed in a staggered manner.
Preferably, the expansion block is of a circular truncated cone-shaped structure.
Preferably, a plurality of liquid inlet holes are formed in the expansion block.
Preferably, a sealing gasket is fixedly mounted on one side of the annular plate.
Preferably, the fixing block is provided with a connecting hole.
Preferably, the outer wall of the sleeve is fixedly sleeved with a hexagonal ring block.
Preferably, the expansion block is fixedly connected with the movable rod.
Preferably, a screw rod is fixedly mounted on one side of the expansion block, a thread groove is formed in one side of the moving rod, the screw rod is meshed with the thread groove, and a plurality of blocking blocks are fixedly mounted on the inner wall of the arc-shaped plate.
Compared with the related art, the disassembly-preventing type pipe joint nut provided by the invention has the following beneficial effects:
the invention provides an anti-disassembly pipe joint nut, which can fix the inner wall of a pipeline and make the pipeline more difficult to disassemble through the plastic deformation of four arc-shaped plates in an expansion mechanism, so that the device plays a role in anti-disassembly.
Drawings
FIG. 1 is a schematic view illustrating a first embodiment of an anti-disassembly type coupling nut according to the present invention;
FIG. 2 is a schematic structural view illustrating a circular plate, a fixing rod, a moving rod, and an expansion block in the anti-disassembly type coupling nut shown in FIG. 1;
FIG. 3 is a schematic structural view of a fixing block and an arc plate in the anti-disassembly type pipe coupling nut shown in FIG. 1;
FIG. 4 is a schematic perspective view illustrating a fixing block and an arc plate of the anti-disassembly type pipe coupling nut shown in FIG. 1;
FIG. 5 is a schematic structural view illustrating an arc-shaped plate of the anti-disassembly type union nut shown in FIG. 1 contacting an inner wall of a pipe;
FIG. 6 is a schematic view illustrating a second embodiment of the disassembly-prevention type union nut according to the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a partial enlarged screenshot of an inner confinement ring provided in accordance with the present invention.
Reference numbers in the figures: 1. a sleeve; 2. a fixed block; 3. an arc-shaped plate; 4. an annular plate; 5. fixing the rod; 6. a travel bar; 7. expanding blocks; 8. a liquid inlet hole; 9. a gasket; 10. connecting holes; 11. a hexagonal ring block; 12. a screw rod; 13. a thread groove; 14. and a stop block.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
The first embodiment:
referring to fig. 1 to 5, in an embodiment of the present invention, the anti-disassembly coupling nut includes: a sleeve 1; the expansion assembly is arranged in the sleeve 1 and comprises a fixed block 2, the fixed block 2 is fixedly arranged on the inner wall of the sleeve 1, four arc-shaped plates 3 are fixedly arranged on two sides of the fixed block 2, the four arc-shaped plates 3 are distributed in an arc array, the four arc-shaped plates 3 are not in contact with each other, the distance between every two adjacent arc-shaped plates 3 is the same, a ring-shaped plate 4 is sleeved on each of the four arc-shaped plates 3 in a sliding manner, four fixing rods 5 are fixedly arranged on the inner ring of the ring-shaped plate 4 and distributed in an annular array manner, the four fixing rods 5 are respectively inserted into a gap formed by the two adjacent arc-shaped plates and are in contact with the corresponding arc-shaped plates, the four fixing rods 5 are fixedly provided with the same movable rod 6, and one end of the movable rod 6 is provided with an expansion block 7, the expansion block 7 is matched with the four annular plates 4.
The expansion block 7 is of a circular truncated cone structure, the minimum radius of the expansion block 7 is smaller than the radius of the four arc-shaped plates 3, and the maximum radius of the expansion block 7 is larger than the radius of the four arc-shaped plates 3, so that the arc-shaped plates 3 can deform after the maximum radius of the expansion block 7 is in contact with the arc-shaped plates 3.
A plurality of liquid inlet holes 8 are formed in the expansion block 7, and the liquid inlet holes 8 mainly ensure that liquid passes through the expansion block.
One side of the annular plate 4 is fixedly provided with a sealing gasket 9, and the sealing gasket 9 plays a role in sealing.
The fixing block 2 is provided with a connecting hole 10, and the connecting hole 10 is used for connecting two pipelines.
The outer wall of the sleeve 1 is fixedly sleeved with a hexagonal ring block 11, and the hexagonal ring block 11 is convenient for a wrench to clamp the sleeve 1.
The expansion block 7 is fixedly connected with the movable rod 6.
Furthermore, as shown in fig. 1 and 8, one end of each moving rod far away from the expansion block is connected with an inner limiting ring 16 through a plurality of connecting rods 15 distributed circumferentially, a gap is reserved between the outer wall of the inner limiting ring and the inner wall of the arc-shaped plate, and the inner limiting ring and the annular plate are distributed in a staggered mode inside and outside, wherein the gap is 0.2-0.8 mm. When the arc is forced to elastically deform outwards, the inner limiting ring can be supported on the inner surface of the arc, and the fracture phenomenon at the joint of the arc and the fixed block is prevented. The connecting rod 15 is an L-shaped rod, the connecting rod 15 and the inner limiting ring 16 are connected by welding, and the connecting rod 15 is connected to the moving rod by welding.
Secondly, the outer wall of each inner limiting ring 16 is provided with an arc convex surface 17, the arc convex surfaces 17 and the inner surface of the arc plate form line-to-surface contact, and the elastic deformation performance of the arc plate can be kept to the maximum extent.
The working principle of the anti-disassembly pipe joint nut provided by the invention is as follows:
when two pipelines need to be connected, whether the two pipelines are provided with external threads or not is determined firstly, the device is mainly used for the pipeline provided with the external threads on the outer wall, two threads with opposite turning directions are arranged on the inner wall of a sleeve 1, when the two pipelines need to be installed, the two pipeline threads are installed in the sleeve 1 firstly, then a wrench is used for rotating a hexagonal ring block 11, the sleeve 1 is rotated to drive the hexagonal ring block 11 to rotate, the hexagonal ring block 11 is rotated to drive the two pipelines to be close to each other, the pipelines are contacted with corresponding sealing gaskets 9 after being moved to a certain position, when the pipelines continue to move, the pipelines push the sealing gaskets 9 to move, the sealing gaskets 9 move to drive the annular plate 4 to move, the annular plate 4 moves to drive the moving rod 6 to move, the moving rod 6 moves to drive the expansion blocks 7 to move, and when the expansion blocks 7 move to the moving position, the contact of the inner wall of the expansion block 7 and the arc-shaped plate 3, after the expansion block 7 continues to move, the expansion block 7 can expand the four arc-shaped plates 3, so that the arc-shaped plates 3 are deformed to move until the outer wall of the arc-shaped plates 3 contacts with the inner wall of the pipeline, at the moment, the pipeline is in threaded connection with the sleeve 1, meanwhile, the arc-shaped plates 3 are tightly contacted with the inner wall of the pipeline, the pipeline is difficult to disassemble, and the possibility of disassembly prevention is achieved.
Compared with the related art, the disassembly-preventing type pipe joint nut provided by the invention has the following beneficial effects:
this device takes place plastic deformation through four arcs 3 in the tight mechanism that expands to can fix the inner wall of pipeline, and make the dismantlement of pipeline more difficult, thereby make this outfit for a journey device play the effect of anti-disassembly.
Second embodiment:
based on the anti-disassembly type union nut that the first embodiment of this application provided, the second embodiment of this application provides another kind of anti-disassembly type union nut. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further described with reference to the drawings and the following description.
Referring to fig. 6-7, the anti-disassembly type pipe coupling nut further includes a screw rod 12, the screw rod 12 is fixedly installed at one side of the expansion block 7, a threaded groove 13 is formed at one side of the moving rod 6, the screw rod 12 is engaged with the threaded groove 13, and a plurality of blocking blocks 14 are fixedly installed on inner walls of the four arc plates 3.
This device is at the in-process of using, sometimes can meet the condition that the pipe wall is thin not thick differs, if the pipe wall is thinner, can not contact with the pipe wall after four arc 3 inflation, just so can not play the effect of fixed pipeline, in this embodiment, the piece 7 that rises can be changed, when the piece 7 that rises more encircles needs, it makes lead screw 12 rotate to rotate corresponding piece 7 that rises, thereby pull down lead screw 12 from the carriage release lever 6, and change piece 7 and lead screw 12 that rises, after piece 7 and arc 3 contact that rises, piece 7 that rises can make four arc 3 inflation, thereby make four arc 3 further fix the pipeline, the dog 14 that sets up simultaneously, can effectually avoid the piece 7 that rises to move backward, dog 14 can play the effect that blocks 7 that rises, thereby greatly increased the effect of preventing dismantling.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Anti-disassembly formula pipe joint nut, its characterized in that includes:
a sleeve;
the expansion assembly is arranged in the sleeve and comprises fixed blocks, the fixed blocks are fixedly arranged on the inner wall of the sleeve, four arc-shaped plates are fixedly arranged on two sides of each fixed block, the four arc-shaped plates are distributed in an arc array, the four arc-shaped plates are not in contact with each other, the distance between every two adjacent arc-shaped plates is the same, annular plates are slidably sleeved on the four arc-shaped plates, four fixed rods are fixedly arranged on the inner rings of the annular plates and distributed in an annular array, the four fixed rods are respectively inserted into gaps formed by the two adjacent arc-shaped plates and are in contact with the corresponding arc-shaped plates, the same movable rod is fixedly arranged on the four fixed rods, an expansion block is arranged at one end of each movable rod, and the expansion blocks are matched with the four annular plates;
one end of each moving rod, which is far away from the expansion block, is connected with an inner limiting ring through a plurality of connecting rods distributed circumferentially, a gap is reserved between the outer wall of the inner limiting ring and the inner wall of the arc-shaped plate, and the inner limiting ring and the annular plate are distributed in a staggered manner.
2. The anti-disassembly tubing nut of claim 1 wherein the swelling block is a truncated cone shaped structure.
3. The anti-disassembly type union nut of claim 1, wherein the expansion block is provided with a plurality of liquid inlet holes.
4. The anti-disassembly tubing nut of claim 1, wherein a gasket is fixedly mounted to one side of the annular plate.
5. The anti-disassembly type union nut of claim 1, wherein the fixing block is provided with a connecting hole.
6. The anti-disassembly type union nut of claim 1, wherein the outer wall of the sleeve is fixedly sleeved with a hexagonal ring block.
7. The anti-disassembly tubing nut of claim 1 wherein the expansion block is fixedly attached to the travel bar.
8. The anti-disassembly type pipe joint nut as claimed in claim 1, wherein a lead screw is fixedly installed at one side of the expansion block, a thread groove is formed at one side of the moving rod, the lead screw is engaged with the thread groove, and a plurality of blocking blocks are fixedly installed on the inner walls of the four arc-shaped plates.
CN202010457581.7A 2020-05-26 2020-05-26 Anti-disassembly type pipe joint nut Pending CN111664305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010457581.7A CN111664305A (en) 2020-05-26 2020-05-26 Anti-disassembly type pipe joint nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010457581.7A CN111664305A (en) 2020-05-26 2020-05-26 Anti-disassembly type pipe joint nut

Publications (1)

Publication Number Publication Date
CN111664305A true CN111664305A (en) 2020-09-15

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Application Number Title Priority Date Filing Date
CN202010457581.7A Pending CN111664305A (en) 2020-05-26 2020-05-26 Anti-disassembly type pipe joint nut

Country Status (1)

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CN (1) CN111664305A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316324A (en) * 1969-10-02 1973-05-09 Wavin Bv Pipe connection
JP2000146049A (en) * 1998-11-17 2000-05-26 Hitachi Metals Ltd Connecting structure for pipe by joint
CN1788169A (en) * 2003-12-15 2006-06-14 康珀德尔体育用品有限公司 Clamp device for telescopic tubes inserted one in the other
CN201636150U (en) * 2010-01-28 2010-11-17 河南农业大学 Expansion fixing connection structure
CN202170911U (en) * 2011-07-08 2012-03-21 洪跃定 Joint head
CN102537551A (en) * 2010-12-10 2012-07-04 泰州申视塑料有限公司 Pipe head connection device of core pipe
CN203836429U (en) * 2014-05-09 2014-09-17 宁波联鹰工程塑料五金有限公司 Pipe connector convenient to use
CN208605772U (en) * 2018-06-29 2019-03-15 山东盛博机械有限公司 A kind of fire-fighting pipe connections of dual-seal
CN210531818U (en) * 2019-04-28 2020-05-15 泰州市三星铁氟隆有限公司 Pipe plastic lining anticreep connecting piece

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316324A (en) * 1969-10-02 1973-05-09 Wavin Bv Pipe connection
JP2000146049A (en) * 1998-11-17 2000-05-26 Hitachi Metals Ltd Connecting structure for pipe by joint
CN1788169A (en) * 2003-12-15 2006-06-14 康珀德尔体育用品有限公司 Clamp device for telescopic tubes inserted one in the other
CN201636150U (en) * 2010-01-28 2010-11-17 河南农业大学 Expansion fixing connection structure
CN102537551A (en) * 2010-12-10 2012-07-04 泰州申视塑料有限公司 Pipe head connection device of core pipe
CN202170911U (en) * 2011-07-08 2012-03-21 洪跃定 Joint head
CN203836429U (en) * 2014-05-09 2014-09-17 宁波联鹰工程塑料五金有限公司 Pipe connector convenient to use
CN208605772U (en) * 2018-06-29 2019-03-15 山东盛博机械有限公司 A kind of fire-fighting pipe connections of dual-seal
CN210531818U (en) * 2019-04-28 2020-05-15 泰州市三星铁氟隆有限公司 Pipe plastic lining anticreep connecting piece

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Application publication date: 20200915