Pipeline steel belt anti-drop connecting structure
By combining a limiting sealing flame arrestor ring and an anti-detachment steel strip, the complexity and instability of existing pipeline connection methods are solved, providing an efficient, safe, and economical pipeline connection solution.
Patent Information
- Application Number
- CN202410519351.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-11-04
AI Technical Summary
Existing pipe connection methods have problems such as complex installation, high cost, insufficient pressure resistance, easy disconnection, and cracking under vibration.
The system adopts a combination structure of limiting sealing fire arresting ring and anti-detachment steel strip. The limiting sealing fire arresting ring is clamped onto the pipe body, and the anti-detachment steel strip is inserted into the circumferential locking position. Combined with the pre-tightening slope and pre-tightening groove, the sealing performance and pressure bearing capacity are enhanced.
It achieves pipe connection effects that are simple to construct, safe and reliable, have high pressure resistance, are not easy to disconnect, do not crack when subjected to vibration, and have controllable costs.
Smart Images
Figure CN120889964A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of pipeline connection, in particular to a pipeline steel band anti-disengagement connection structure. BACKGROUND
[0002] At present, there are many pipeline connection methods on the market, which are either complicated to install, or high in production cost, or insufficient in pressure bearing, or complex in mold, or often disconnected in drainage, or cracked in earthquake, etc. SUMMARY
[0003] The technical problem to be solved by the present application is to provide a pipeline steel band anti-disengagement connection structure which is simple in construction efficiency, safe and reliable, simple in mold, high in pressure bearing strength, not disconnected in drainage, not cracked in earthquake, and controllable in cost, in view of the above-mentioned deficiencies of the existing pipeline connection methods.
[0004] The technical problem to be solved by the present application can be solved by the following technical scheme:
[0005] A pipeline steel band anti-disengagement connection structure comprises two pipe bodies, a socket, two limiting sealing fire-retardant rings and two anti-disengagement steel bands, each pipe body is inserted into the inner hole of one end of the socket through one limiting sealing fire-retardant ring, a circumferential clamping position is arranged on the outer periphery of each end of the socket, each anti-disengagement steel band is clamped into the circumferential clamping position, and the socket is clamped on the pipe body through the limiting sealing fire-retardant ring.
[0006] In a preferred embodiment of the present application, the bottom surface of the circumferential clamping position is provided with a pre-tightening slope of 0-5°.
[0007] In a preferred embodiment of the present application, at least one pre-tightening groove is arranged circumferentially on each circumferential clamping position.
[0008] In a preferred embodiment of the present application, the number of pre-tightening grooves is at least two or more, which are uniformly distributed circumferentially on each circumferential clamping position.
[0009] In a preferred embodiment of the present application, the anti-disengagement steel band is a clamping ring structure.
[0010] In a preferred embodiment of the present application, a flange ring is arranged on each of the axial sides of the circumferential clamping position to limit the axial movement of the anti-disengagement steel band.
[0011] In a preferred embodiment of the present application, an annular boss is arranged at the middle position of the inner hole of the socket, and the pipe body tightly abuts the end surface of the annular boss with the limiting sealing fire-retardant ring.
[0012] In a preferred embodiment of the present invention, a pointed protrusion is provided at the middle position of the inner circumferential surface of the annular boss.
[0013] In a preferred embodiment of the present invention, the longitudinal section of the limiting sealing fire arrestor ring is L-shaped, wherein the horizontal side of the L-shape is pressed against the end face of the annular boss by the pipe body, and the vertical side of the L-shape is located between the pipe body and the inner hole of the socket.
[0014] In a preferred embodiment of the present invention, a plurality of annular protrusions are axially spaced on the vertical side of the L-shape, and the inner and outer surfaces of the annular protrusions are respectively pressed into contact with the outer peripheral surface of the pipe body and the inner hole of the socket.
[0015] By employing the above technical solutions, this invention prevents the spread of fire by setting a limiting sealing fire-resistant ring, and by setting an anti-detachment steel strip, the joints between pipe fittings and pipelines are leak-proof and do not separate under pressure. This invention also has the advantages of simple construction efficiency, safety and reliability, simple molds, high pressure resistance, no drainage disconnection, no cracking under vibration, and controllable cost. Attached Figure Description
[0016] Fig. 1 This is one of the schematic diagrams of the anti-detachment connection structure of the pipeline steel strip of the present invention.
[0017] Fig. 2 This is the second schematic diagram of the anti-detachment connection structure of the pipeline steel strip of the present invention.
[0018] Fig. 3 This is a cross-sectional view of the anti-detachment connection structure of the pipeline steel strip of the present invention. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] See Figs. 1 to 3 The pipe steel strip anti-detachment connection structure shown in the figure includes: two pipe fitting bodies 10, one socket 20, two limiting sealing fire arresting rings 30 and two anti-detachment steel strips 40.
[0021] The limiting sealing flame arrestor ring 30 is made of intumescent flame-retardant EPDM, and its longitudinal cross section is L-shaped.
[0022] An annular boss 22 is provided in the middle of the inner hole 21 of the socket 20, and a pointed protrusion 23 is provided in the middle of the inner circumferential surface of the annular boss 22, which serves to limit the expansion of the pipe.
[0023] Each pipe body 10 is inserted into the inner hole 21 of one end of the socket 20 through one limiting sealing fire stopping ring 30, the pipe body 10 abuts against the end face of the annular boss 22 with the short side 31 of the L shape, and the vertical side 32 of the L shape is located between the pipe body 10 and the inner hole 21 of the socket 20. A plurality of annular protrusions 33 are axially spaced on the vertical side 32 of the L shape, and the inner and outer surfaces of the annular protrusions 33 are respectively in extrusion contact with the outer peripheral surface of the pipe body 10 and the inner hole 21 of the socket 20, so as to increase the sealing property.
[0024] A circumferential clamping position 24 is arranged on the outer periphery of each end of the socket 20, the bottom surface of the circumferential clamping position 24 is provided with a pre-tightening slope of 0-5°, and at least two pre-tightening grooves 25 are arranged on the circumferential clamping position 24 in the circumferential direction. The angle of the pre-tightening slope and the number of the pre-tightening grooves 25 are different, and the pressure bearing capacity is different. The greater the slope of the pre-tightening slope is, the greater the pressure bearing capacity is, and the greater the number of the pre-tightening grooves 25 is, the greater the pressure bearing capacity is. Each anti-disengagement steel band 40 is clamped into the circumferential clamping position 24, and the pre-tightening slope and the pre-tightening grooves 25 make the socket 20 clamped on the pipe body 10 through the limiting sealing fire stopping ring 30. A flange ring 26 and 27 are respectively arranged on the axial sides of the circumferential clamping position 24, so as to limit the axial movement of the anti-disengagement steel band 40. The anti-disengagement steel band 40 is a clamping ring structure.
Claims
1. A pipe steel strip anti-detachment connection structure, characterized in that, It includes: two pipe fitting bodies, one socket, two limiting sealing fire arresting rings, and two anti-detachment steel strips. Each pipe fitting body is inserted into the inner hole of one end of the socket through a limiting sealing fire arresting ring. A circumferential locking position is provided on the outer periphery of each end of the socket. Each anti-detachment steel strip is locked into the circumferential locking position, so that the socket is clamped to the pipe fitting body by the limiting sealing fire arresting ring.
2. The anti-detachment connection structure for pipeline steel strips according to claim 1, characterized in that, The bottom surface of the circular locking position is provided with a pre-tightening slope of 0 to 5 degrees.
3. The anti-detachment connection structure for pipeline steel strips according to claim 2, characterized in that, Each circular locking position has at least one pre-tightening groove in its circumferential direction.
4. The anti-detachment connection structure for pipeline steel strips according to claim 3, characterized in that, The number of pre-tightening grooves is at least two, and they are evenly distributed around each circumference of the ...
5. The pipe steel strip anti-detachment connection structure according to any one of claims 1 to 4, characterized in that, A flange ring is provided on each of the two axial sides of the circumferential locking position to restrict the movement of the anti-detachment steel strip axis.
6. The anti-detachment connection structure for pipeline steel strips according to claim 5, characterized in that, The anti-detachment steel belt has a retaining ring structure.
7. The anti-detachment connection structure for pipeline steel strips according to claim 1, characterized in that, An annular boss is provided at the middle of the inner hole of the socket, and the pipe body presses the limiting sealing flame arrestor ring against the end face of the annular boss.
8. The anti-detachment connection structure for pipeline steel strips according to claim 7, characterized in that, A pointed protrusion is provided at the middle position of the inner circumference of the annular boss.
9. The anti-detachment connection structure for pipeline steel strips according to claim 7, characterized in that, The longitudinal section of the limiting sealing fire arrestor ring is L-shaped, wherein the horizontal side of the L-shape is pressed against the end face of the annular boss by the pipe body, and the vertical side of the L-shape is located between the pipe body and the inner hole of the socket.
10. The anti-detachment connection structure for pipeline steel strips according to claim 9, characterized in that, Several annular protrusions are axially spaced on the vertical side of the L-shape, and the inner and outer surfaces of the annular protrusions are respectively pressed into contact with the outer circumferential surface of the pipe body and the inner hole of the socket.