Refractory hydraulic oil pipe anti-falling connector

By designing fire-resistant hydraulic oil pipe anti-deforming joints, including expansion and tightening components, limiting mechanisms and tensioning components, the problem of insufficient reinforcement of the hydraulic oil pipe end is solved, the stability and firmness of the joints are achieved, and the reliability of the hydraulic system is ensured. sex.

CN119412559AInactive Publication Date: 2025-02-11HAIYAN WIN-WIN PIPE FITTINGS MFG CO LTD
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Patent Information

Application Number
CN202411316040.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-02-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When installing hydraulic oil pipes, the prior art lacks effective reinforcement of the ends of hydraulic oil pipes, resulting in the joints being not firm enough and may cause looseness or fall off.

Method used

A fire-resistant hydraulic oil pipe anti-deforming joint is designed, including a tightening assembly, a limiting mechanism and a tightening assembly. The expansion and tightening assembly increases the stability of the limit ring through the expansion sleeve and the expansion and tightening bolt; the limiting mechanism firmly holds the limit ring and assembly ring through the expansion airbag; the tensioning assembly tightens the assembly ring through the adjustment screw and the tensioning ring to ensure that Stability of the joint.

Benefits of technology

The end of the hydraulic oil pipe is effectively reinforced, the stability and firmness of the joints are improved, the loosening or falling off of the hydraulic oil pipe is avoided, and the reliability of the hydraulic system is ensured.

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Abstract

The invention discloses a fire-resistant hydraulic oil pipe anti-falling connector which comprises an expansion assembly installed on the outer side of the end of a fire-resistant hydraulic oil pipe A, a fixing ring perpendicular to a flange plate B and an expansion sleeve arranged on the outer side of the fixing ring in a sleeving mode. The limiting mechanism comprises a set of limiting rings arranged on the outer side of the expansion sleeve in a sleeving mode, an assembling ring arranged on the outer side of the limiting rings in a combined sleeving mode, an outer rubber sleeve installed between the opposite surfaces of the limiting rings and the assembling ring and an expansion air bag installed in the outer rubber sleeve, and limiting pieces are arranged on the limiting rings; when adjacent hydraulic oil pipes are installed, the design of reinforcing the ends of the hydraulic oil pipes is adopted, expansion bolts on expansion sleeves are screwed, the stability of limiting rings can be improved, fixing rings are fixed, and then the effect of fixing the ends of the fireproof hydraulic oil pipes A is achieved. Expansion air bags fix the limiting rings and assembling rings, tensioning rings are arranged on the outer sides of convex columns in a sleeving mode, and screws are adjusted to move. The tensioning ring tensions the assembling ring, and the end of the fireproof hydraulic oil pipe A is prevented from falling off.
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Description

Technical Field

[0001] The invention belongs to the technical field of pipeline joints, and in particular relates to a fire-resistant hydraulic oil pipe anti-detachment type joint. Background Art

[0002] Hydraulic oil pipes, also known as hydraulic hoses, hydraulic hoses and hydraulic pipes, are mainly used to transmit high-pressure liquid working media. They are the basic pipelines for transmitting force and movement in hydraulic systems. Hydraulic oil pipes have the characteristics of high pressure, corrosion resistance, fire resistance and high temperature resistance. Adjacent hydraulic oil pipes are generally connected by flanges and bolts.

[0003] Adjacent hydraulic oil pipes are fixed by flange plates and flange bolts thereon. However, during the installation process, if the tightening force is insufficient, the flange plate may become loose and gyroscopic, and the adjacent fire-resistant hydraulic oil pipes cannot be firmly restrained. When the adjacent hydraulic oil pipes are installed, there is a problem of no design to reinforce the ends of the hydraulic oil pipes. For this reason, the present application proposes a fire-resistant hydraulic oil pipe anti-detachment joint. Summary of the invention

[0004] The object of the present invention is to provide a fire-resistant hydraulic oil pipe anti-detachment joint to solve the problem of the design without reinforcing the ends of the hydraulic oil pipes when adjacent hydraulic oil pipes are installed as mentioned in the background art.

[0005] To achieve the above object, the present invention provides the following technical solution: a fire-resistant hydraulic oil pipe anti-detachment type joint, comprising

[0006] The expansion assembly installed on the outside of the end of the fire-resistant hydraulic oil pipe A includes a fixing ring of a vertical flange B and a expansion sleeve sleeved on the outside of the fixing ring;

[0007] The limiting mechanism comprises a group of limiting rings sleeved on the outside of the expansion sleeve, an assembly ring sleeved on the outside of the limiting ring, an outer rubber sleeve installed between the opposite surfaces of the limiting ring and the assembly ring, and an expansion airbag installed inside the outer rubber sleeve. The limiting ring is provided with a limiting member, which comprises a connecting plate connected to the limiting ring at one end and a limiting plate connected to the other end of the connecting plate at one end. The limiting ring surface is provided with a limiting groove matched with the corresponding limiting plate. The inner surface of the assembly ring is provided with a clamping column, and the outer surface of the assembly ring is provided with a convex column.

[0008] The tensioning assembly comprises a connecting frame, a stabilizing plate installed inside the connecting frame, an adjusting screw penetrating the stabilizing plate and the side of the connecting frame, and a tensioning ring rotatably connected to the end of the adjusting screw.

[0009] Preferably, the inner diameter of the expansion sleeve is the same as the outer diameter of the fixing ring, and the outer diameter of the expansion sleeve is the same as the inner diameter of the limiting ring.

[0010] Preferably, the limiting plate is parallel to the limiting ring, the limiting plate is in a fan shape, and the connecting plate is in an arc shape.

[0011] Preferably, a limiting hole cooperating with the clamping column is provided at the center of the surface of the connecting plate.

[0012] Preferably, a first damping rubber pad is provided on the surface of the limiting ring, and a triangular raised pattern is provided on the surface of the first damping rubber pad.

[0013] Preferably, the outer rubber sleeve and the expansion airbag are annular structures with one end open, the inner surface of the outer rubber sleeve is provided with an annular groove cooperating with the expansion airbag, and the outer rubber sleeve is provided with an air nozzle connected to the inside of the expansion airbag.

[0014] Preferably, a second damping rubber pad is provided on the outer surface of the outer rubber sleeve, a third damping rubber pad is provided on the surface of the assembly ring facing the outer rubber sleeve, and triangular raised patterns are provided on the surfaces of the second damping rubber pad and the third damping rubber pad.

[0015] Preferably, the inner diameter of the tension ring is the same as the outer diameter of the protruding column, a limiting half ring is provided on the outer surface of the tension ring, one end of the adjusting screw passing through the limiting half ring is a spherical structure, and the adjusting screw is connected to the stabilizing plate by threaded engagement.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, when adjacent hydraulic oil pipes are installed, there is a design for reinforcing the ends of the hydraulic oil pipes. Tightening the expansion bolts on the expansion sleeve can increase the stability of the limit ring and firmly hold the fixing ring, thereby achieving the effect of firmly holding the end A of the fire-resistant hydraulic oil pipe. The expansion airbag firmly holds the limit ring and the assembly ring. The tensioning ring sleeve is arranged on the outside of the convex column, the adjusting screw moves, and the tensioning ring tightens the assembly ring to prevent the end A of the fire-resistant hydraulic oil pipe from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic side view of the structure of the expansion sleeve of the present invention;

[0020] Figure 3 It is a schematic diagram of the top view of the limit ring of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting ring of the present invention;

[0022] Figure 5 It is a schematic side view of the structure of the outer rubber sleeve of the present invention;

[0023] Figure 6It is a side view structural schematic diagram of the assembly ring of the present invention;

[0024] Figure 7 It is a schematic diagram of the top view of the connection frame of the present invention;

[0025] In the figure: 4, tensioning assembly; 11, fixing ring; 12, expansion sleeve; 21, limiting ring; 22, assembly ring; 31, outer rubber sleeve; 32, expansion airbag; 41, connecting frame; 42, adjusting screw; 43, tensioning ring; 211, connecting plate; 212, limiting plate; 213, limiting groove; 214, first damping rubber pad; 221, convex column; 222, clamping column; 223, third damping rubber pad; 311, second damping rubber pad; 411, stabilizing plate; 2111, limiting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] See also Figures 1 to 7The present invention provides a technical solution: a fire-resistant hydraulic oil pipe anti-slip joint, comprising an expansion assembly installed on the outside of the end of the fire-resistant hydraulic oil pipe A, comprising a fixing ring 11 vertical to the flange B, and an expansion sleeve 12 sleeved on the outside of the fixing ring 11. The fixing ring 11 and the flange B are combined by a conventional method. A set of two opposing limiting rings 21 are sleeved on the outside of the fixing ring 11. The opposing limiting rings 21 are engaged and connected. The expansion sleeve 12 is installed between the limiting ring 21 and the fixing ring 11. The expansion bolts are tightened to increase the stability of the limit ring 21 and firmly hold the fixing ring 11, thereby reinforcing the end of the fire-resistant hydraulic oil pipe A; the limit mechanism includes a group of limit rings 21 sleeved on the outside of the expansion sleeve 12, an assembly ring 22 sleeved on the outside of the limit ring 21, an outer rubber sleeve 31 installed between the opposite surfaces of the limit ring 21 and the assembly ring 22, and an expansion airbag 32 installed inside the outer rubber sleeve 31. The expansion airbag 32 is inflated to expand the outer rubber sleeve 31, so that it can firmly hold the limit The assembly ring 22 is combined and sleeved on the outer side of the limiting ring 21, and the clamping column 222 is inserted into the inner side of the limiting hole 2111, so that the assembly ring 22 is accurately installed and limits the limiting ring 21. The limiting ring 21 is provided with a limiting member, which includes a connecting plate 211 connected to the limiting ring 21 at one end, and a limiting plate 212 connected to the other end of the connecting plate 211 at one end. A limiting groove 213 that matches the corresponding limiting plate 212 is opened on the surface of the limiting ring 21, and the opposing limiting ring 21 When engaged, the limit plate 212 is embedded in the corresponding limit groove 213, so that the opposing limit rings 21 are accurately assembled. The inner surface of the assembling ring 22 is provided with a clamping column 222, and the outer surface of the assembling ring 22 is provided with a convex column 221. The convex column 221 serves to limit the tensioning ring 43; the tensioning assembly 4 includes a connecting frame 41, a stabilizing plate 411 installed inside the connecting frame 41, an adjusting screw 42 passing through the stabilizing plate 411 and the side of the connecting frame 41, and a tensioning ring 43 rotatably connected to the end of the adjusting screw 42.

[0029] In this embodiment, the inner diameter of the expansion sleeve 12 is the same as the outer diameter of the fixing ring 11, and the outer diameter of the expansion sleeve 12 is the same as the inner diameter of the limiting ring 21. The expansion sleeve 12 is installed between the limiting ring 21 and the fixing ring 11. Tightening the expansion bolt on the expansion sleeve 12 can increase the stability of the limiting ring 21 and firmly hold the fixing ring 11.

[0030] In this embodiment, the limit plate 212 is parallel to the limit ring 21, the limit plate 212 is fan-shaped, and the connecting plate 211 is arc-shaped. When the opposing limit rings 21 are engaged and connected, the limit plate 212 is embedded in the corresponding limit groove 213, so that the opposing limit rings 21 are accurately combined.

[0031] In this embodiment, a limiting hole 2111 cooperating with the clamping column 222 is opened at the center position of the surface of the connecting plate 211, the assembly ring 22 is assembled and sleeved on the outside of the limiting ring 21, and the clamping column 222 is inserted into the inside of the limiting hole 2111, so that the assembly ring 22 is installed accurately and limits the limiting ring 21.

[0032] In this embodiment, a first damping rubber pad 214 is provided on the surface of the limiting ring 21 . The surface of the first damping rubber pad 214 is provided with triangular raised patterns. The first damping rubber pad 214 serves to increase friction.

[0033] In this embodiment, the outer rubber sleeve 31 and the inflation airbag 32 are annular structures with one end open. The inner surface of the outer rubber sleeve 31 is provided with an annular groove that cooperates with the inflation airbag 32. The outer rubber sleeve 31 is provided with an air nozzle that is connected to the inside of the inflation airbag 32. External conventional inflation equipment inflates air from the air nozzle, such as an air pump, to inflate the inflation airbag 32. The inflation airbag 32 firmly holds the limiting ring 21 and the assembly ring 22.

[0034] In this embodiment, a second damping rubber pad 311 is provided on the outer surface of the outer rubber sleeve 31, and a third damping rubber pad 223 is provided on the surface of the assembly ring 22 facing the outer rubber sleeve 31. The surfaces of the second damping rubber pad 311 and the third damping rubber pad 223 are provided with triangular raised patterns. The second damping rubber pad 311 and the third damping rubber pad 223 play a role in increasing friction, thereby increasing the friction between the contact surfaces of the outer rubber sleeve 31 and the assembly ring 22 and the limit ring 21, thereby increasing the firmness of the installation of the assembly ring 22.

[0035] In this embodiment, the inner diameter of the tightening ring 43 is the same as the outer diameter of the boss 221, and a limiting half ring is provided on the outer surface of the tightening ring 43. One end of the adjusting screw 42 passing through the limiting half ring is a spherical structure. The adjusting screw 42 is connected to the stabilizing plate 411 by a threaded engagement. The adjusting screw 42 is rotated to change the position of the adjusting screw 42, and the tightening ring 43 is sleeved on the outer side of the boss 221 to tighten the assembly ring 22.

[0036] The working principle and use process of the present invention:

[0037] When reinforcing the adjacent fire-resistant hydraulic oil pipe A, the expansion sleeve 12 is sleeved on the outside of the fixing ring 11, and a group of two limiting rings 21 are clamped and connected and sleeved on the outside of the expansion sleeve 12. The expansion bolts on the expansion sleeve 12 are tightened to increase the stability of the limiting ring 21 and firmly hold the fixing ring 11, thereby achieving the effect of firmly fixing the end of the fire-resistant hydraulic oil pipe A;

[0038] The assembly ring 22 is assembled and sleeved on the outer side of the limiting ring 21, and the clamping column 222 is inserted into the inner side of the limiting hole 2111, so that the assembly ring 22 is accurately installed and limits the limiting ring 21;

[0039] The external conventional inflation device inflates air from the air nozzle, such as an air pump, to inflate the inflation airbag 32, and the inflation airbag 32 firmly holds the limiting ring 21 and the assembly ring 22;

[0040] The first damping rubber pad 214, the second damping rubber pad 311 and the third damping rubber pad 223 play a role in increasing friction, so that the friction between the contact surface between the outer rubber sleeve 31 and the assembly ring 22 and the limit ring 21 is increased, thereby increasing the firmness of the installation of the assembly ring 22;

[0041] The adjusting screw 42 is rotated to change the position of the adjusting screw 42, and the tightening ring 43 is sleeved on the outer side of the protruding column 221 to tighten the assembly ring 22;

[0042] To sum up: when adjacent hydraulic oil pipes are installed, there is a design to reinforce the ends of the hydraulic oil pipes. Tightening the expansion bolts on the expansion sleeve 12 can increase the stability of the limit ring 21 and firmly hold the fixing ring 11, thereby achieving the effect of firmly holding the end of the fire-resistant hydraulic oil pipe A. The expansion airbag 32 firmly holds the limit ring 21 and the assembly ring 22. The tensioning ring 43 is sleeved on the outside of the protruding column 221. The adjusting screw 42 moves, and the tensioning ring 43 tightens the assembly ring 22 to prevent the end of the fire-resistant hydraulic oil pipe A from falling off.

[0043] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire-resistant hydraulic oil pipe anti-slip joint, characterized by: include The expansion assembly installed on the outer side of the end of the fire-resistant hydraulic oil pipe A comprises a fixing ring (11) vertical to the flange plate B and an expansion sleeve (12) sleeved on the outer side of the fixing ring (11); The limiting mechanism comprises a group of limiting rings (21) sleeved on the outside of the expansion sleeve (12), an assembly ring (22) sleeved on the outside of the limiting ring (21), an outer rubber sleeve (31) installed between the opposing surfaces of the limiting ring (21) and the assembly ring (22), and an expansion airbag (32) installed inside the outer rubber sleeve (31); the limiting ring (21) is provided with a limiting member, the limiting member comprises a connecting plate (211) connected to the limiting ring (21) at one end, and a limiting plate (212) connected to the other end of the connecting plate (211) at one end; a limiting groove (213) matched with the corresponding limiting plate (212) is provided on the surface of the limiting ring (21); a clamping column (222) is provided on the inner surface of the assembly ring (22); and a convex column (221) is provided on the outer surface of the assembly ring (22); The tensioning assembly (4) comprises a connecting frame (41), a stabilizing plate (411) installed inside the connecting frame (41), an adjusting screw (42) passing through the stabilizing plate (411) and the side of the connecting frame (41), and a tensioning ring (43) rotatably connected to the end of the adjusting screw (42).

2. The fire-resistant hydraulic oil pipe anti-detachment joint according to claim 1, characterized in that: The inner diameter of the expansion sleeve (12) is the same as the outer diameter of the fixing ring (11), and the outer diameter of the expansion sleeve (12) is the same as the inner diameter of the limiting ring (21).

3. The fire-resistant hydraulic oil pipe anti-detachment joint according to claim 1, characterized in that: The limiting plate (212) is parallel to the limiting ring (21), the limiting plate (212) is in a fan shape, and the connecting plate (211) is in an arc shape.

4. The fire-resistant hydraulic oil pipe anti-detachment joint according to claim 1, characterized in that: A limiting hole (2111) that cooperates with the clamping column (222) is provided at the center of the surface of the connecting plate (211).

5. The fire-resistant hydraulic oil pipe anti-detachment joint according to claim 1, characterized in that: A first damping rubber pad (214) is provided on the surface of the limiting ring (21), and a triangular raised pattern is provided on the surface of the first damping rubber pad (214).

6. The fire-resistant hydraulic oil pipe anti-detachment joint according to claim 1, characterized in that: The outer rubber sleeve (31) and the expansion airbag (32) are annular structures with one end open, the inner surface of the outer rubber sleeve (31) is provided with an annular groove that matches the expansion airbag (32), and the outer rubber sleeve (31) is provided with an air nozzle that is connected to the inside of the expansion airbag (32).

7. The fire-resistant hydraulic oil pipe anti-detachment joint according to claim 1, characterized in that: A second damping rubber pad (311) is provided on the outer surface of the outer rubber sleeve (31), a third damping rubber pad (223) is provided on the surface of the assembly ring (22) facing the outer rubber sleeve (31), and triangular raised patterns are provided on the surfaces of the second damping rubber pad (311) and the third damping rubber pad (223).

8. The fire-resistant hydraulic oil pipe anti-detachment joint according to claim 1, characterized in that: The inner diameter of the tension ring (43) is the same as the outer diameter of the protruding column (221); a limiting half ring is provided on the outer surface of the tension ring (43); one end of the adjusting screw (42) passing through the limiting half ring is a spherical structure; the adjusting screw (42) is connected to the stabilizing plate (411) by screw threading.