CN110657291B - Safety pipe fitting connecting structure and assembling and disassembling method thereof - Google Patents
Safety pipe fitting connecting structure and assembling and disassembling method thereof Download PDFInfo
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- CN110657291B CN110657291B CN201910930157.7A CN201910930157A CN110657291B CN 110657291 B CN110657291 B CN 110657291B CN 201910930157 A CN201910930157 A CN 201910930157A CN 110657291 B CN110657291 B CN 110657291B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 238000010030 laminating Methods 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 139
- 238000009434 installation Methods 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000004429 Calibre Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 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
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Abstract
The invention provides a safe pipe fitting connecting structure and an assembling and disassembling method thereof, and belongs to the field of pipe fitting connection. It has solved the problem that current pipe connection structure joint strength is low. This safe pipe connection structure, including connecting device and two pipe fittings, connecting device includes two outer adapter sleeves and inner adapter sleeve, inner adapter sleeve both ends are connected with the outer end that two outer adapter sleeves leave respectively, the pipe fitting pipe wall is equipped with a plurality of jacks, the pipe fitting terminal surface is the outer clamping face of inclined plane structure, still include the clamp mouth cover of the taper sleeve structure of small-bore end and outer adapter sleeve inner outer wall fixed, the interior clamping face of laminating with outer clamping face has on the clamp mouth cover, be equipped with two sets of coupling mechanism in the connecting device, coupling mechanism is including the adjusting collar of cover on the inner adapter sleeve, outer adapter sleeve cooperation cover is on the adjusting collar, be equipped with the seal cover between two sets of coupling mechanism, seal cover both ends inner wall cooperation cover is on two adjusting collar outer walls, be equipped with reset spring between two adjusting collars. This connection structure can two pipe fittings of high strength high leakproofness connection.
Description
Technical Field
The invention belongs to the technical field of pipe connection, and relates to a safe pipe connection structure and an assembling and disassembling method thereof.
Background
In the prior art, two pipe fittings are connected by adopting a threaded connection mode, and the threaded part is sealed by matching glue to improve the sealing effect, but the structural strength is low; in the prior application of the invention with the application number of 201910347275.5, namely the Chinese invention patent application named as 'pipe fitting sealing connection structure and connection and disassembly method thereof', sealing connection devices are arranged on the inner sides of two pipe fittings, and are connected by using pin columns and pin grooves of the pipe fittings, so that the connection strength can be effectively improved, and meanwhile, the sealing gasket is adopted between the pipe fittings and the sealing sleeve for clamping and sealing, so that the sealing property can be effectively improved. However, it has the following problems:
1. through the rotary sealing sleeve, not only can be used for sealing, also can be used for connecting simultaneously, no matter consequently make the installation still dismantle the process, coupling mechanism and sealing mechanism are as an organic whole, though easy to assemble, but the pipe fitting shake can lead to the seal cover not hard up, influences the leakproofness, can make sealing connection device and pipe fitting separation when serious, consequently connect stability relatively poor.
2. The pipe fitting is generally elastic, so that the connection end thereof is easily deformed, the pin and the pin groove are separated, and the connection strength is insufficient.
3. The sealing gasket utilizes two axial side surfaces for sealing, so that the best sealing effect can be achieved only by axially moving the sealing gasket, but the sealing effect is not good because the sealing gasket cannot only keep axially moving by rotating the sealing gasket.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a safe pipe fitting connecting structure and a mounting and dismounting method thereof, wherein the connecting system and the sealing system are independent from each other, so that mutual influence is avoided, the connection is more stable, and the sealing effect is better.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a safe pipe fitting connection structure, includes connecting device and two pipe form pipe fittings, and connecting device includes two outer adapter sleeves that external diameter and pipe fitting internal diameter are the same, and two pipe fittings cooperate the cover respectively on two outer adapter sleeves, and connecting device still includes the inner adapter sleeve that the external diameter is less than the outer adapter sleeve internal diameter, and inner adapter sleeve both ends are connected its characterized in that with the outer end that two outer adapter sleeves leave respectively: the pipe wall of the pipe fitting is provided with a plurality of jacks distributed along the circumferential direction, the axes of the jacks are arranged along the radial direction of the pipe fitting, the end face of the pipe fitting is an outer clamping face of a circular inclined plane structure, an included angle between the outer clamping face and the inner wall of the pipe fitting is an acute angle, the pipe fitting further comprises a clamping sleeve of a taper sleeve structure, the small-caliber end of the clamping sleeve is fixed with the outer wall of the inner end of the outer connecting sleeve, the clamping sleeve is provided with an inner clamping face attached to the outer clamping face, the outer diameter of the large-caliber end of the clamping sleeve is smaller than the outer diameter of the pipe fitting, two groups of connecting mechanisms are arranged in the connecting device, the two groups of connecting mechanisms are symmetrically arranged by taking the cross section of the middle part of the inner connecting sleeve as a symmetrical surface, each connecting mechanism comprises a circular sleeve-shaped adjusting sleeve sleeved on the inner connecting sleeve in a matching manner, the outer connecting sleeve, the inner walls of the two ends of the sealing sleeve are respectively matched and sleeved on the outer walls close to the two adjusting sleeves, the inner wall of the sealing sleeve is provided with a plurality of strip-shaped aligning grooves arranged along the axial direction of the sealing sleeve in the length direction, the outer wall of each adjusting sleeve is provided with a strip-shaped aligning strip positioned on the aligning grooves in a sliding manner, a reset spring sleeved on the inner connecting sleeve is arranged between the two adjusting sleeves, the two ends of the reset spring are respectively abutted against one end close to the two adjusting sleeves, the outer wall of each adjusting sleeve is provided with a plurality of pin grooves distributed along the circumferential direction, the length and the width direction of each pin groove are respectively arranged along the circumferential direction and the axial direction of the adjusting sleeve, the depth of the groove from the front end to the rear end in the length direction of each pin groove is the same, the depth of the groove from the outer end to the inner end in the width direction is gradually reduced, the outer end of each pin groove is provided with a clamping groove arranged along the length, the outer connecting sleeve is provided with a plurality of pin holes distributed along the circumferential direction, the axis of each pin hole is arranged along the radial direction of the outer connecting sleeve, the outer connecting sleeve also comprises a bolt movably penetrating through the pin hole, the rear end of the bolt is fixed with a spherical pin head which is positioned in the pin groove in a sliding manner, the outer connecting sleeve also comprises a compression spring which is sleeved on the bolt and two ends of which are respectively abutted against the inner wall of the outer connecting sleeve and the pin head, the compression spring pushes the pin head to enable the pin head to be abutted against the wall of the pin groove in a sliding manner, the outer wall of the adjusting sleeve is also provided with a plurality of push grooves distributed along the circumferential direction, the length direction of the push grooves is arranged along the circumferential direction of the adjusting sleeve, the width direction is arranged along the axial direction of the adjusting sleeve, the depth of the outer end to the inner end of the push grooves is the same as that of the outer end of the inner end, the depth of the front end to the rear end of the, the inner end of the push column is supported against the wall of the push groove in a sliding manner, the outer end of the push column is supported against the inner side surface of the sealing ring, and when the pin head is positioned at the front end, the rear end, the inner end or the outer end of the pin groove, the inner end of the push column is sequentially positioned at the front end, the rear end, the inner end or the outer end of the push groove respectively;
the reset spring pushes the two adjusting sleeves, so that the pin head and the inner end of the push column are respectively located at the inner end of the pin groove and the inner end of the push groove, the outer end of the bolt extends out of the pin hole and is embedded in the pin hole in a matched mode, the sealing sleeve can rotate around the axis in a forward direction, the sealing sleeve drives the adjusting sleeves to rotate, the inner end of the push column moves from the front end of the push groove to the rear end, the outer end of the push column pushes the inner side face of the sealing ring tightly and expands the sealing ring, the outer side face of the sealing ring is abutted to the inner wall of the pipe fitting in a sealed mode, the outer end of the bolt moves into the pin hole, the pin head moves to the outer end of the pin groove and is clamped in the clamping groove, the pin head drives the adjusting sleeves to move, the inner end of the push.
In the connecting structure, the sealing ring can be expanded and sealed and propped against the inner wall of the pipe fitting by rotating the sealing sleeve, so that the sealing effect can be improved, the sealing ring is sealed by utilizing the radial outer side surface, and the push column only pushes the sealing ring in the radial direction, so that the sealing ring can achieve the optimal sealing effect; in the connecting structure, the end part of the pipe fitting is clamped by the clamping sleeve, so that the end part of the pipe fitting is prevented from being deformed, the bolt is prevented from being separated from the jack, the connecting strength is higher, even if the sealing sleeve is loosened, the sealing performance can only be influenced, and the connecting device can be separated from the pipe fitting only by pushing the outer end of the bolt, so that a sealing system and a connecting system in the connecting device are mutually independent, and the connecting stability can be improved; in the dismounting process, the bolt moves in the pin slot to drive the adjusting sleeve to move, and then the push column can be driven to move in the push slot, so that the sealing ring is contracted into the sealing groove, the sealing ring is prevented from expanding in the dismounting process, the dismounting is convenient, and in the dismounting process, after the outer end of the bolt moves into the pin hole, the pin head can be clamped in the clamping groove, so that the next mounting is convenient; and this connecting device is applicable to the pipe fitting structure of hidden installation, avoids causing the influence to external device.
In the above-mentioned safety pipe connection structure, the inner wall of the pipe is coaxially provided with a circular positioning groove, the width of the positioning groove is the same as the diameter of the bolt rod, and the inner ends of the plurality of insertion holes are located on the wall of the positioning groove.
Therefore, the bolt and the positioning groove are pre-positioned in the installation process, and the bolt and the jack can be conveniently and quickly aligned and installed.
In the above-mentioned safety pipe connection structure, the seal groove is a dovetail groove structure, and the included angle between the upper and lower side groove walls and the inner side groove wall is an acute angle.
Therefore, the sealing ring can be further clamped, and the sealing effect is improved.
In foretell safe pipe fitting connection structure, still include the round cover form operation cover that outer end and double-layered mouthful cover heavy-calibre end coaxial coupling, seal cover both ends outer wall coaxial be equipped with round cover form operation groove respectively, and the operation cover cooperation cover is on the operation groove.
Therefore, the matching operation of the operation sleeve is convenient.
In the above-mentioned safety pipe connection structure, still include the uide bushing of two conical sleeve column structures, and two uide bushing small-bore ends are connected with inner connection cover both ends respectively, and two uide bushing heavy-calibre ends are connected with two outer adapter sleeve outer ends respectively, and uide bushing and inner connection cover contained angle are the obtuse angle.
Avoiding excessive fluid impact on the connection device.
In the above-mentioned safety pipe connection structure, the inner connection sleeve, the outer connection sleeve, the guide sleeve, the clamp sleeve and the operation sleeve are of an integral structure and made of hard metal materials.
Therefore, the structure is simple and stable.
In the above-mentioned safety pipe connection structure, the end of the push column abutting against the sealing ring is of a round head structure.
Avoiding damaging the sealing ring.
In the above-mentioned safety pipe connection structure, the outer wall of the sealing sleeve and the outer wall of the operating sleeve are both provided with anti-slip threads.
In the above-mentioned safety pipe connection structure, the outer wall of the sealing sleeve and the outer wall of the operating sleeve are provided with operating marks.
Thus facilitating the operation.
A method for assembling and disassembling a connecting structure of a safety pipe fitting is characterized in that: the method comprises an installation method and a disassembly method:
the installation method comprises the following steps: sleeving a pipe fitting on an outer connecting sleeve, attaching an inner clamping surface and an outer clamping surface on a clamping port sleeve, holding an operating sleeve and reversely rotating a sealing sleeve, driving the adjusting sleeve to rotate by the sealing sleeve, moving a pin head from the rear end to the front end of a clamping groove, pushing the adjusting sleeve by a reset spring, moving the pin head towards the inner end of a pin groove, moving the outer end of a bolt into a positioning groove, holding the pipe fitting and rotating the operating sleeve, embedding the outer end of the bolt into the inserting hole, moving the inner end of a push column to the inner end of the push groove, holding the operating sleeve and forwardly rotating the sealing sleeve, moving the inner end of the push column from the front end to the rear end of the push groove, pushing the outer end of the push column against the inner side surface of a sealing ring and expanding the sealing ring, and sealing the outer side surface of the;
the disassembling method comprises the following steps: and a rod-shaped tool penetrates into the jack, the outer end of the bolt is pushed, the outer end of the bolt is moved into the pin hole, the pin head is moved to the outer end of the pin groove and clamped in the clamping groove, the pin head drives the adjusting sleeve to move, the inner end of the push column is moved into the reset groove, the sealing ring is contracted into the sealing groove, and then the pipe fitting and the operating sleeve are respectively held and separated from each other.
By the method, the connecting device can be quickly installed or detached with the pipe fitting.
Compared with the prior art, the invention has the following advantages:
1. in the connecting structure, the sealing ring can be expanded and sealed and propped against the inner wall of the pipe fitting by rotating the sealing sleeve, so that the sealing effect can be improved, the sealing ring is sealed by utilizing the radial outer side surface, and the push column only pushes the sealing ring in the radial direction, so that the sealing ring can achieve the optimal sealing effect;
2. in the connecting structure, the end part of the pipe fitting is clamped by the clamping sleeve, so that the end part of the pipe fitting is prevented from being deformed, the bolt is prevented from being separated from the jack, the connecting strength is higher, even if the sealing sleeve is loosened, the sealing performance can only be influenced, and the connecting device can be separated from the pipe fitting only by pushing the outer end of the bolt, so that a sealing system and a connecting system in the connecting device are mutually independent, and the connecting stability can be improved;
3. in the dismounting process, the bolt moves in the pin slot to drive the adjusting sleeve to move, and then the push column can be driven to move in the push slot, so that the sealing ring is contracted into the sealing groove, the sealing ring is prevented from expanding in the dismounting process, the dismounting is convenient, and in the dismounting process, after the outer end of the bolt moves into the pin hole, the pin head can be clamped in the clamping groove, so that the next mounting is convenient;
4. and this connecting device is applicable to the pipe fitting structure of hidden installation, avoids causing the influence to external device.
Drawings
Fig. 1 is a front view and a partial sectional view of the present connection structure.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is another state diagram of fig. 2.
Fig. 4-6 are respective transverse partial sectional views of fig. 1 at different locations.
In the figure, the position of the upper end of the main shaft,
1. a pipe fitting; 11. a jack; 12. an outer clamping surface; 13. positioning a groove;
2. an outer connecting sleeve; 21. a pin hole; 22. a sealing groove; 23. a seal ring; 24. pushing the hole; 25. pushing the column;
3. an inner connecting sleeve; 31. a guide sleeve;
4. a clamping port sleeve; 41. an inner clamping surface; 42. an operating sleeve;
5. an adjusting sleeve; 51. aligning strips; 52. a return spring; 53. a pin slot; 54. a card slot; 55. pushing the groove; 56. a reset groove;
6. sealing sleeves; 61. a positioning groove; 62. an operation slot;
7. a bolt; 71. a pin head; 72. compressing the spring.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-6, the invention relates to a safe pipe fitting connection structure, which comprises a connection device and two round pipe fittings 1, wherein the connection device comprises two outer connecting sleeves 2 with the same outer diameter as the inner diameter of the pipe fittings 1, the two pipe fittings 1 are respectively matched and sleeved on the two outer connecting sleeves 2, the connection device also comprises an inner connecting sleeve 3 with the outer diameter smaller than the inner diameter of the outer connecting sleeve 2, two ends of the inner connecting sleeve 3 are respectively connected with the outer ends of the two outer connecting sleeves 2 which are separated from each other, the pipe wall of the pipe fitting 1 is provided with a plurality of jacks 11 which are distributed along the circumferential direction, the axial lines of the jacks 11 are arranged along the radial direction of the pipe fitting 1, the end surface of the pipe fitting 1 is an outer clamping surface 12 with a circular inclined plane structure, the included angle between the outer clamping surface 12 and the inner wall of the pipe fitting 1 is an acute angle, the clamping sleeve 4 with a taper sleeve structure is fixed on the outer wall of the inner end of the, two groups of connecting mechanisms are arranged in the connecting device, the two groups of connecting mechanisms are symmetrically arranged by taking the cross section of the middle part of the inner connecting sleeve 3 as a symmetrical surface, each connecting mechanism comprises a round sleeve-shaped adjusting sleeve 5 which is sleeved on the inner connecting sleeve 3 in a matching way, the outer connecting sleeve 2 is sleeved on the adjusting sleeve 5 in a matching way, a sealing sleeve 6 is arranged between the two groups of connecting mechanisms, the outer diameter of the sealing sleeve 6 is smaller than that of the pipe fitting 1, the inner diameter of the sealing sleeve is the same as that of the outer connecting sleeve 2, two ends of the sealing sleeve 6 are respectively abutted against the two clamping port sleeves 4, the inner walls of two ends of the sealing sleeve 6 are respectively sleeved on the outer walls close to the two adjusting sleeves 5 in a matching way, a plurality of strip-shaped aligning grooves 61 which are arranged along the axial direction of the sealing sleeve 6 in the length direction are arranged on the inner wall of the adjusting sleeve 5, strip-shaped aligning strips 51 which are positioned, the outer wall of the adjusting sleeve 5 is provided with a plurality of pin grooves 53 distributed along the circumferential direction, the length and the width direction of each pin groove 53 are respectively arranged along the circumferential direction and the axial direction of the adjusting sleeve 5, the depth of the groove from the front end to the rear end in the length direction of each pin groove 53 is the same, the depth of the groove from the outer end to the inner end in the width direction is gradually reduced, a clamping groove 54 arranged along the length direction of each pin groove 53 is deepened at the outer end of each pin groove 53, the depth of the groove from the front end to the rear end of each clamping groove 54 is gradually increased, the depth of the intersection of the front end of each pin groove 53 and the outer end of each pin groove 53 is the same as the depth of the groove at the front end of each clamping groove 54, the outer connecting sleeve 2 is provided with a plurality of pin holes 21 distributed along the circumferential direction, the axis of each pin hole 21 is radially arranged along the outer connecting sleeve 2, the outer connecting sleeve also comprises a plug 7 movably penetrating, and the compression spring 72 pushes the pin head 71 to make the pin head 71 slide and abut against the wall of the pin groove 53, the outer wall of the adjusting sleeve 5 is further provided with a plurality of pushing grooves 55 distributed along the circumferential direction, the length direction of the pushing grooves 55 is arranged along the circumferential direction of the adjusting sleeve 5, the width direction is arranged along the axial direction of the adjusting sleeve 5, the depth of the outer end to the inner end of the pushing grooves 55 along the width direction is the same, the depth of the front end to the rear end of the pushing grooves 55 along the length direction is gradually reduced, the outer end of the pushing grooves 55 is deepened with a resetting groove 56 arranged along the length direction of the pushing grooves 55, the depth of the resetting groove 56 is the same as that of the front end of the pushing grooves 55, the outer wall of the outer connecting sleeve 2 is coaxially provided with an annular sealing groove 22, a sealing ring 23 is sleeved in the sealing groove 22, the outer connecting sleeve 2 is also provided with a plurality of pushing holes 24 distributed along the circumferential direction, the axial line of the pushing holes 24 is arranged along, the inner end of the push column 25 is slidably abutted against the groove wall of the push groove 55, the outer end of the push column is abutted against the inner side surface of the sealing ring 23, and when the pin head 71 is positioned at the front end, the rear end, the inner end or the outer end of the pin groove 53, the inner end of the push column 25 is sequentially positioned at the front end, the rear end, the inner end or the outer end of the push groove 55 respectively;
the reset spring 52 pushes the two adjusting sleeves 5, so that the pin head 71 and the inner end of the push column 25 are respectively located at the inner end of the pin groove 53 and the inner end of the push groove 55, the outer end of the plug pin 7 extends out of the pin hole 21 and is embedded in the jack 11 in a matching manner, and the sealing sleeve 6 can be rotated in the forward direction around the axis, so that the sealing sleeve 6 drives the adjusting sleeves 5 to rotate, the inner end of the push column 25 moves from the front end of the push groove 55 to the rear end, the outer end of the push column 25 pushes against the inner side of the sealing ring 23 and expands the sealing ring 23, the outer side of the sealing ring 23 is sealed and abutted against the inner wall of the pipe fitting 1, the outer end of the plug pin 7 can be pushed, the outer end of the plug pin 7 moves into the pin hole 21, the pin head 71 moves to the outer end of the pin groove 53 and is clamped in the clamping groove 54, and the pin head 71 drives the adjusting sleeves.
Furthermore, a circular positioning groove 13 is coaxially arranged on the inner wall of the pipe fitting 1, the width of the positioning groove 13 is the same as the rod diameter of the bolt 7, and the inner ends of the plurality of insertion holes 11 are positioned on the groove wall of the positioning groove 13. The sealing groove 22 is of a dovetail groove structure, and the included angle between the upper and lower groove walls and the inner groove wall is an acute angle. The outer end of the circular sleeve-shaped operating sleeve 42 is coaxially connected with the large-caliber end of the clamping opening sleeve 4, the outer walls of the two ends of the sealing sleeve 6 are respectively and coaxially provided with a circular sleeve-shaped operating groove 62, and the operating sleeve 42 is sleeved on the operating grooves 62 in a matching mode. The guide sleeve 31 is of a conical sleeve-shaped structure, the small-caliber ends of the two guide sleeves 31 are connected with the two ends of the inner connecting sleeve 3 respectively, the large-caliber ends of the two guide sleeves 31 are connected with the outer ends of the two outer connecting sleeves 2 respectively, and the included angle between the guide sleeve 31 and the inner connecting sleeve 3 is an obtuse angle. The inner connecting sleeve 3, the outer connecting sleeve 2, the guide sleeve 31, the clamping sleeve 4 and the operating sleeve 42 are of an integrated structure and made of hard metal materials. One end of the push column 25, which is abutted against the sealing ring 23, is of a round head structure. The outer wall of the sealing sleeve 6 and the outer wall of the operating sleeve 42 are both provided with anti-skid grains. The outer wall of the sealing sleeve 6 and the outer wall of the operating sleeve 42 are provided with operating marks.
In the connecting structure, the sealing ring 23 can be expanded and sealed to abut against the inner wall of the pipe fitting 1 by rotating the sealing sleeve 6, so that the sealing effect can be improved, the sealing ring 23 is sealed by utilizing the radial outer side surface, and the push column 25 only pushes the sealing ring 23 in the radial direction, so that the sealing ring 23 can achieve the best sealing effect; in the connecting structure, the end part of the pipe fitting 1 is clamped by the clamping port sleeve 4, so that the end part of the pipe fitting 1 is prevented from being deformed, the bolt 7 is separated from the jack 11, the connecting strength is higher, even if the sealing sleeve 6 is loosened, the sealing performance can only be influenced, and the connecting device can be separated from the pipe fitting 1 only by pushing the outer end of the bolt 7, so that a sealing system and a connecting system in the connecting device are mutually independent, and the connecting stability can be improved; in the dismounting process, the bolt 7 moves in the pin groove 53 to drive the adjusting sleeve 5 to move, and then the push column 25 is driven to move in the push groove 55, so that the sealing ring 23 is contracted into the sealing groove 22, and the expansion of the sealing ring 23 in the dismounting process is avoided, so that the dismounting is convenient, and in the dismounting process, after the outer end of the bolt 7 moves into the pin hole 21, the pin head 71 is clamped in the clamping groove 54, so that the next mounting is convenient; and this connecting device is applicable to the pipe fitting 1 structure of hidden installation, avoids causing the influence to external device.
A method for assembling and disassembling a safety pipe fitting connecting structure comprises an assembling method and a disassembling method:
the installation method comprises the following steps: sleeving the pipe fitting 1 on the outer connecting sleeve 2, enabling the inner clamping surface 41 on the clamping sleeve 4 to be attached to the outer clamping surface 12, holding the operating sleeve 42 and reversely rotating the sealing sleeve 6, enabling the sealing sleeve 6 to drive the adjusting sleeve 5 to rotate, enabling the pin head 71 to move from the rear end to the front end of the clamping groove 54, enabling the reset spring 52 to push the adjusting sleeve 5 to move the pin head 71 towards the inner end of the pin groove 53, enabling the outer end of the bolt 7 to move into the positioning groove 13, holding the pipe fitting 1 and rotating the operating sleeve 42, enabling the outer end of the bolt 7 to be embedded into the jack 11, enabling the inner end of the push column 25 to move into the inner end of the push groove 55, holding the operating sleeve 42 and forwardly rotating the sealing sleeve 6, enabling the inner end of the push column 25 to move from the front end to the rear end of the push column 55, enabling the outer end of the push column 25 to push against the inner side surface of the sealing ring 23 and;
the disassembling method comprises the following steps: a rod-shaped tool is inserted into the jack 11, the outer end of the plug pin 7 is pushed, the outer end of the plug pin 7 moves into the pin hole 21, the pin head 71 moves to the outer end of the pin groove 53 and is clamped in the clamping groove 54, the pin head 71 drives the adjusting sleeve 5 to move, the inner end of the push column 25 moves into the reset groove 56, the sealing ring 23 is contracted into the sealing groove 22, and then the pipe fitting 1 and the operating sleeve 42 are respectively held and separated from each other.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although terms such as the pipe 1, the insertion hole 11, the outer clamping surface 12, the positioning groove 13, the outer connecting sleeve 2, the pin hole 21, the sealing groove 22, the sealing ring 23, the push hole 24, the push post 25, the inner connecting sleeve 3, the guide sleeve 31, the jaw sleeve 4, the inner clamping surface 41, the operating sleeve 42, the adjusting sleeve 5, the aligning bar 51, the return spring 52, the pin groove 53, the clamping groove 54, the push groove 55, the return groove 56, the sealing sleeve 6, the aligning groove 61, the operating groove 62, the pin 7, the pin head 71, the compression spring 72, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a safe pipe connection structure, includes connecting device and two pipe form pipe fittings (1), connecting device includes two adapter sleeve (2) that external diameter and pipe fitting (1) internal diameter are the same, and two pipe fitting (1) cooperate the cover respectively on two adapter sleeve (2), and connecting device still includes internal connection cover (3) that the external diameter is less than adapter sleeve (2) internal diameter, and internal connection cover (3) both ends are connected its characterized in that with two external connection cover (2) outer ends that separate respectively: the pipe fitting (1) pipe wall be equipped with a plurality of jacks (11) that distribute along circumference, and jack (11) axis radially sets up along pipe fitting (1), pipe fitting (1) terminal surface be outer clamping face (12) of ring shape inclined plane structure, outer clamping face (12) are the acute angle with pipe fitting (1) inner wall contained angle, still include the nip cover (4) of taper sleeve structure that small-bore end and outer adapter sleeve (2) inner outer wall are fixed, have interior clamping face (41) with outer clamping face (12) laminating on nip cover (4), nip cover (4) heavy-calibre end external diameter be less than pipe fitting (1) external diameter, connecting device in be equipped with two sets of coupling mechanism, two sets of coupling mechanism set up for the symmetry for the cover with inner adapter sleeve (3) middle part cross section, coupling mechanism is including cooperation inner adapter sleeve (3) on the round sleeve (5) sleeve form adjusting sleeve (5), outer adapter sleeve (2) cooperation cover on adjusting sleeve (5), a sealing sleeve (6) is arranged between the two groups of connecting mechanisms, the outer diameter of the sealing sleeve (6) is smaller than that of the pipe fitting (1), the inner diameter of the sealing sleeve is the same as that of the outer connecting sleeve (2), two ends of the sealing sleeve (6) are respectively abutted against the two opening clamping sleeves (4), the inner walls of two ends of the sealing sleeve (6) are respectively sleeved on the outer walls close to the two adjusting sleeves (5) in a matching way, a plurality of strip-shaped aligning grooves (61) are arranged on the inner wall of the sealing sleeve (6) in the length direction along the axial direction of the sealing sleeve (6), strip-shaped aligning strips (51) which are slidably positioned on the aligning grooves (61) are arranged on the outer wall of the adjusting sleeves (5), a reset spring (52) sleeved on the inner connecting sleeve (3) is arranged between the two adjusting sleeves (5), two ends of the reset spring (52) are respectively abutted against one end close to the two adjusting sleeves (5), a plurality of pin grooves (, the length and the width direction of the pin groove (53) are respectively arranged along the circumferential direction and the axial direction of the adjusting sleeve (5), the depth of the groove from the front end to the rear end in the length direction of the pin groove (53) is the same, the depth of the groove from the outer end to the inner end in the width direction is gradually reduced, a clamping groove (54) arranged along the length direction of the pin groove (53) is deepened at the outer end of the pin groove (53), the depth of the groove at the intersection of the front end of the pin groove (53) and the outer end of the pin groove (53) is the same as the depth of the groove at the front end of the clamping groove (54), a plurality of pin holes (21) distributed along the circumferential direction are arranged on the outer connecting sleeve (2), the axis of the pin hole (21) is radially arranged along the outer connecting sleeve (2), the pin bolt (7) movably penetrates through the pin hole (21) is further included, a spherical pin head (71) positioned in the pin groove (53) in a sliding manner is fixed at the rear end of the pin (7), the pin head (7) is sleeved on the pin (7, and the compression spring (72) pushes the pin head (71) to enable the pin head (71) to be abutted against the wall of the pin groove (53) in a sliding manner, the outer wall of the adjusting sleeve (5) is also provided with a plurality of pushing grooves (55) distributed along the circumferential direction, the length direction of the pushing grooves (55) is arranged along the circumferential direction of the adjusting sleeve (5), the width direction is arranged along the axial direction of the adjusting sleeve (5), the depth of the outer end of the pushing grooves (55) in the width direction is the same as that of the inner end of the pushing grooves (55), the depth of the front end of the pushing grooves (55) in the length direction is gradually reduced from the front end to the rear end of the pushing grooves (55), the outer end of the pushing grooves (55) is deepened with a resetting groove (56) arranged along the length direction of the pushing grooves (55), the depth of the resetting groove (56) is the same as that of the front end of the pushing grooves (55), the outer wall of the outer connecting sleeve (2) is coaxially provided with a, the axis of the push hole (24) is arranged along the radial direction of the outer connecting sleeve (2), the two ends of the push hole (24) are respectively positioned on the groove wall of the sealing groove (22) and the inner wall of the outer connecting sleeve (2), a cylindrical push column (25) is movably arranged in the push hole (24), the inner end of the push column (25) is propped against the groove wall of the push groove (55) in a sliding manner, the outer end of the push column is propped against the inner side surface of the sealing ring (23), and when the pin head (71) is positioned at the front end, the rear end, the inner end or the outer end of the pin groove (53), the inner end of the push column (25) is sequentially and respectively positioned at the front end, the rear;
the reset spring (52) pushes the two adjusting sleeves (5), so that the pin head (71) and the inner end of the push column (25) are respectively positioned at the inner end of the pin groove (53) and the inner end of the push groove (55), the outer end of the pin (7) extends out of the pin hole (21) and is embedded in the jack (11) in a matching manner, and the sealing sleeve (6) can be rotated around the axis in the forward direction, so that the sealing sleeve (6) drives the adjusting sleeves (5) to rotate, the inner end of the push column (25) moves from the front end to the rear end of the push groove (55), the outer end of the push column (25) props against the inner side surface of the sealing ring (23) and expands the sealing ring (23), the outer side surface of the sealing ring (23) is sealed and abutted against the inner wall of the pipe fitting (1), the outer end of the pin (7) can be pushed, the outer end of the pin (7) moves into the pin hole (21), the pin head (71) moves to the outer end of the pin groove (53, the inner end of the push column (25) moves into the reset groove (56), so that the sealing ring (23) is contracted into the sealing groove (22), and the connecting device and the pipe fitting (1) can be mutually separated.
2. A safety pipe connecting structure according to claim 1, wherein: the inner wall of the pipe fitting (1) is coaxially provided with a circular positioning groove (13), the width of the positioning groove (13) is the same as the rod diameter of the bolt (7), and the inner ends of the plurality of insertion holes (11) are positioned on the groove wall of the positioning groove (13).
3. A safety pipe connecting structure according to claim 1, wherein: the sealing groove (22) is of a dovetail groove structure, and the included angles of the upper and lower side groove walls and the inner side groove wall are acute angles.
4. A safety pipe connecting structure according to claim 1, wherein: still include outer end and press from both sides mouthful cover (4) heavy-calibre end coaxial coupling's round cover form operation cover (42), seal cover (6) both ends outer wall coaxial be equipped with round cover form operation groove (62) respectively, and operation cover (42) cooperation cover is on operation groove (62).
5. A safety pipe connection according to claim 4, wherein: the guide sleeve structure is characterized by further comprising two guide sleeves (31) of conical sleeve-shaped structures, small-caliber ends of the two guide sleeves (31) are connected with two ends of the inner connecting sleeve (3) respectively, large-caliber ends of the two guide sleeves (31) are connected with outer ends of the two outer connecting sleeves (2) respectively, and included angles between the guide sleeves (31) and the inner connecting sleeve (3) are obtuse angles.
6. A safety pipe connection according to claim 5, wherein: the inner connecting sleeve (3), the outer connecting sleeve (2), the guide sleeve (31), the clamping sleeve (4) and the operating sleeve (42) are of an integrated structure and made of hard metal materials.
7. A safety pipe connecting structure according to claim 1, wherein: and one end of the push column (25) which is abutted against the sealing ring (23) is of a round head structure.
8. A safety pipe connection according to claim 4, wherein: the outer wall of the sealing sleeve (6) and the outer wall of the operating sleeve (42) are both provided with anti-skid grains.
9. A safety pipe connection according to claim 4, wherein: and operation marks are arranged on the outer wall of the sealing sleeve (6) and the outer wall of the operation sleeve (42).
10. A method of assembling and disassembling a safety pipe joint structure according to any one of claims 1 to 9, wherein: the method comprises an installation method and a disassembly method:
the installation method comprises the following steps: sleeving a pipe fitting (1) on an outer connecting sleeve (2), enabling an inner clamping surface (41) on a clamping port sleeve (4) to be attached to an outer clamping surface (12), holding an operating sleeve (42) and reversely rotating a sealing sleeve (6), enabling the sealing sleeve (6) to drive an adjusting sleeve (5) to rotate, enabling a pin head (71) to move to the front end from the rear end of a clamping groove (54), enabling a reset spring (52) to push the adjusting sleeve (5) to enable the pin head (71) to move towards the inner end of a pin groove (53), enabling the outer end of a bolt (7) to move into a positioning groove (13), holding the pipe fitting (1) and rotating the operating sleeve (42), enabling the outer end of the bolt (7) to be embedded into an inserting hole (11), enabling the inner end of a push column (25) to move to the inner end of a push groove (55), holding the operating sleeve (42) and forwardly rotating the operating sleeve (6), enabling the inner end of the push column (25) to move from the front end of the push groove (55) to the inner side surface of a sealing ring (23) and enabling the, the outer side surface of the sealing ring (23) is sealed and propped against the inner wall of the pipe fitting (1), and the other pipe fitting (1) is installed in the same way;
the disassembling method comprises the following steps: a rod-shaped tool penetrates into the jack (11), the outer end of the bolt (7) is pushed, the outer end of the bolt (7) is moved into the pin hole (21), the pin head (71) is moved to the outer end of the pin groove (53) and clamped in the clamping groove (54), the pin head (71) drives the adjusting sleeve (5) to move, the inner end of the push column (25) is moved into the reset groove (56), the sealing ring (23) is contracted into the sealing groove (22), and then the pipe fitting (1) and the operating sleeve (42) are respectively held and separated from each other.
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| CN201910930157.7A CN110657291B (en) | 2019-09-29 | 2019-09-29 | Safety pipe fitting connecting structure and assembling and disassembling method thereof |
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| CN111550628A (en) * | 2020-05-21 | 2020-08-18 | 温州远协电子科技有限公司 | Hidden pipe fitting connecting device and assembling and disassembling method thereof |
| CN114992383B (en) * | 2022-04-20 | 2024-04-05 | 天津建工城市建设发展有限公司 | Pipeline installation method |
| CN114932721B (en) * | 2022-04-22 | 2023-12-29 | 杭州特种纸业有限公司 | A gel device for vulcanized fibre production |
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