A thermal insulation and waterproof fully buried expansion joint

Abstract

The utility model relates to the technical field of pipeline connection, and specifically to a fully embedded expansion joint with thermal insulation and waterproofness, comprising a working bellows, a first connecting pipe, a second connecting pipe, a fixing ring, a thermal insulation ring, a first sealing ring, a second sealing ring, a first bolt, a buffer assembly, a reinforcing assembly and two groups of connecting assemblies. The connecting assembly is used to fix the first connecting pipe and the second connecting pipe to the two ends of the working bellows respectively, the first bolt fixes the thermal insulation ring to one side of the fixing ring, the first sealing ring and the second sealing ring are used to seal the thermal insulation ring, the reinforcing assembly increases the connectivity between the fixing ring and the first connecting pipe, the thermal insulation ring plays a role of thermal insulation, and the buffer assembly can effectively alleviate the pressure on the thermal insulation ring caused by the expansion of the working bellows. In this way, the working bellows is made to have the characteristics of thermal insulation and waterproofness, so as to facilitate installation and disassembly by staff and reduce the workload of later maintenance personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a thermal insulation and waterproof fully buried expansion joint. Background Art

[0002] An expansion joint is a flexible element that can effectively compensate for axial deformation. The expansion joint welded on the fixed tube sheet heat exchanger shell has large axial flexibility and is easy to deform. It can compensate for the thermal expansion difference between the tube and the shell due to different wall temperatures, reduce their axial load, and thus reduce the temperature difference stress of the tube, tube sheet and shell, avoiding strength damage, instability damage and tube pull-off damage. There are many types of expansion joints, and the commonly used ones are corrugated, ring plate welding and sandwich shell structures. Among them, the corrugated expansion joint is the most widely used, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

[0003] The existing expansion joints have poor thermal insulation effects and are inconvenient for workers to install and disassemble, which affects the workload of maintenance personnel. Utility Model Content

[0004] The utility model aims to provide a thermal insulation and waterproof fully embedded expansion joint, aiming to solve the problem that the existing expansion joint has poor thermal insulation effect, is inconvenient for workers to install and disassemble, and affects the workload of maintenance personnel.

[0005] To achieve the above-mentioned purpose, the utility model provides a fully buried expansion joint with thermal insulation and waterproofness, comprising a working bellows, a first connecting pipe, a second connecting pipe, a fixing ring, a thermal insulation ring, a first sealing ring, a second sealing ring, a first bolt, a buffer assembly, a reinforcement assembly and two groups of connecting assemblies, the two groups of connecting assemblies are respectively arranged at both ends of the working bellows, the first connecting pipe is arranged at one end of the working bellows, the second connecting pipe is arranged at the other end of the working bellows, the fixing ring is fixedly connected to the first connecting pipe and is located on the outer side wall of the first connecting pipe, the first sealing ring is fixedly connected to the first connecting pipe and is located on the outer side wall of the first connecting pipe, the thermal insulation ring is detachably connected to the fixing ring and is located on one side of the fixing ring, and the thermal insulation ring is movably matched with the first sealing ring, the fixing ring and the thermal insulation ring have a threaded hole, the threaded hole is threadedly matched with the first bolt, the second sealing ring is fixedly connected to the second connecting pipe and is located on the outer side wall of the second connecting pipe, the buffer assembly is arranged on the inner side wall of the thermal insulation ring, and the reinforcement assembly is arranged on the outer side wall of the first connecting pipe.

[0006] Wherein, the buffer assembly includes a first right-angle ring, a second right-angle ring, a first retaining ring, a second retaining ring, a spring and a third sealing ring, the first right-angle ring is fixedly connected to the first connecting tube and is located on the outer side wall of the first connecting tube, the second right-angle ring is fixedly connected to the second connecting tube and is located on the outer side wall of the second connecting tube, and the second right-angle ring is slidably matched with the first right-angle ring, the first retaining ring is fixedly connected to the first right-angle ring and is located on the outer side wall of the first right-angle ring, and the first retaining ring contacts the second right-angle ring, the second retaining ring is fixedly connected to the second right-angle ring and is located on the inner side wall of the second right-angle ring, and the second retaining ring contacts the first right-angle ring, one end of the spring is fixedly connected to the first retaining ring and is located on one side of the first retaining ring, the other end of the spring is fixedly connected to the second retaining ring and is located on one side of the second retaining ring, the insulation ring has a sealing groove, the sealing groove is adapted to the third sealing ring, the third sealing ring is fixedly connected to the insulation ring and is located on the inner side wall of the sealing groove, and the third sealing ring contacts the second right-angle ring.

[0007] Among them, the reinforcement component includes an outer ring and a reinforcement rib, the outer ring is fixedly connected to the first connecting tube and is located on the outer side wall of the first connecting tube, one end of the reinforcement rib is fixedly connected to the outer ring and is located on the outer side wall of the outer ring, and the other end of the reinforcement rib is fixedly connected to the fixing ring and is located on the outer side wall of the fixing ring.

[0008] Among them, the connecting assembly includes a first flange, a second flange, a second bolt and a third bolt. The first flange is fixedly connected to the first connecting pipe and is located on the outer wall of the first connecting pipe. The second bolt passes through the first flange and the working bellows in sequence. The second flange is fixedly connected to the second connecting pipe and is located on the outer wall of the second connecting pipe. The third bolt passes through the second flange and the working bellows in sequence.

[0009] Wherein, the thermal insulation and waterproof fully buried expansion joint also includes a fixing component, and the fixing component is arranged on the outer side wall of the thermal insulation ring.

[0010] Wherein, the fixing assembly includes a support frame and a mounting plate, the support frame is fixedly connected to the insulation ring and is located on the outer side wall of the insulation ring, and the mounting plate is fixedly connected to the support frame and is located below the support frame.

[0011] The utility model discloses a fully embedded expansion joint with thermal insulation and waterproofness. The connecting assembly is used to fix the first connecting pipe and the second connecting pipe to the two ends of the working bellows respectively. The first bolt fixes the insulation ring to one side of the fixing ring. The first sealing ring and the second sealing ring are used to seal the insulation ring. The reinforcing assembly increases the connectivity between the fixing ring and the first connecting pipe. The insulation ring has a heat-insulating effect. The buffer assembly can effectively relieve the pressure on the insulation ring caused by the expansion of the working bellows. In this way, the working bellows is made to have the characteristics of thermal insulation and waterproofness, so as to facilitate installation and disassembly by the staff and reduce the workload of the later maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0014] Figure 2 It is an overall front view of the first embodiment of the utility model.

[0015] Figure 3 It is an overall right side view of the first embodiment of the utility model.

[0016] Figure 4 The utility model Figure 3 AA line section view.

[0017] Figure 5 It is an overall structural diagram of the second embodiment of the utility model.

[0018] Figure 6 It is an overall front view of the second embodiment of the utility model.

[0019] 101-working bellows, 102-first connecting pipe, 103-second connecting pipe, 104-fixing ring, 105-insulation ring, 106-first sealing ring, 107-second sealing ring, 108-first bolt, 109-buffer assembly, 110-reinforcement assembly, 111-connecting assembly, 112-first right-angle ring, 113-second right-angle ring, 114-first retaining ring, 115-second retaining ring, 116-spring, 117-third sealing ring, 118-outer ring, 119-reinforcement rib, 120-first flange, 121-second flange, 122-second bolt, 123-third bolt, 124-threaded hole, 125-sealing groove, 201-fixing assembly, 202-support frame, 203-mounting plate. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] First embodiment:

[0022] See also Figures 1 to 4 ,in, Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a front view of the whole of the first embodiment of the utility model, Figure 3 It is the overall right side view of the first embodiment of the utility model. Figure 4 The utility model Figure 3 AA line section view.

[0023] The utility model provides a fully embedded expansion joint with thermal insulation and waterproofness, comprising a working bellows 101, a first connecting pipe 102, a second connecting pipe 103, a fixing ring 104, a thermal insulation ring 105, a first sealing ring 106, a second sealing ring 107, a first bolt 108, a buffer assembly 109, a reinforcement assembly 110 and two groups of connecting assemblies 111, wherein the buffer assembly 109 comprises a first right-angle ring 112, a second right-angle ring 113, a first retaining ring 114, a second retaining ring 115, a spring 116 and a third sealing ring 117, the reinforcement assembly 110 comprises an outer ring 118 and a reinforcing rib 119, the connecting assembly 111 comprises a first flange 120, a second flange 121, a second bolt 122 and a third bolt 123, the fixing ring 104 and the thermal insulation ring 105 have a threaded hole 124, and the thermal insulation ring 105 has a sealing groove 125.

[0024] According to the present specific embodiment, the two groups of connecting components 111 are respectively arranged at the two ends of the working bellows 101, the first connecting tube 102 is arranged at one end of the working bellows 101, the second connecting tube 103 is arranged at the other end of the working bellows 101, the fixing ring 104 is fixedly connected to the first connecting tube 102 and is located on the outer side wall of the first connecting tube 102, the first sealing ring 106 is fixedly connected to the first connecting tube 102 and is located on the outer side wall of the first connecting tube 102, the insulation ring 105 is detachably connected to the fixing ring 104 and is located on one side of the fixing ring 104, and the insulation ring 105 is movably matched with the first sealing ring 106, the fixing ring 104 and the insulation ring 105 have a threaded hole 124, and the threaded hole 124 is threadedly matched with the first bolt 108, the second sealing ring 107 is fixedly connected to the second connecting tube 103 and is located on the outer side wall of the second connecting tube 10 3, the buffer component 109 is arranged on the inner wall of the insulation ring 105, the reinforcement component 110 is arranged on the outer wall of the first connecting pipe 102, the first connecting pipe 102 and the second connecting pipe 103 are respectively fixed to the two ends of the working bellows 101 by using the connecting component 111, the first bolt 108 fixes the insulation ring 105 to one side of the fixing ring 104, the first sealing ring 106 and the second sealing ring 107 are used to seal the insulation ring 105, the reinforcement component 110 increases the connectivity between the fixing ring 104 and the first connecting pipe 102, the insulation ring 105 plays a role of insulation, the buffer component 109 can effectively relieve the pressure on the insulation ring 105 caused by the expansion of the working bellows 101, and in this way, the working bellows 101 has the characteristics of insulation and waterproof, so as to facilitate the installation and disassembly of the staff and reduce the workload of the later maintenance personnel.

[0025] The first right-angle ring 112 is fixedly connected to the first connecting tube 102 and is located on the outer side wall of the first connecting tube 102. The second right-angle ring 113 is fixedly connected to the second connecting tube 103 and is located on the outer side wall of the second connecting tube 103. The second right-angle ring 113 is slidably matched with the first right-angle ring 112. The first retaining ring 114 is fixedly connected to the first right-angle ring 112 and is located on the outer side wall of the first right-angle ring 112. The first retaining ring 114 is in contact with the second right-angle ring 113. The second retaining ring 115 is fixedly connected to the second right-angle ring 113 and is located on the inner side wall of the second right-angle ring 113. The second retaining ring 115 is in contact with the first right-angle ring 112. One end of the spring 116 is fixedly connected to the first retaining ring 114 and is located on the inner side wall of the first retaining ring 114. On one side, the other end of the spring 116 is fixedly connected to the second baffle ring 115 and is located on one side of the second baffle ring 115. The insulation ring 105 has a sealing groove 125, and the sealing groove 125 is adapted to the third sealing ring 117. The third sealing ring 117 is fixedly connected to the insulation ring 105 and is located on the inner side wall of the sealing groove 125, and the third sealing ring 117 is in contact with the second right-angle ring 113. When the working bellows 101 expands due to heat, due to its own elasticity, the second right-angle ring 113 will slide in the insulation ring 105. At this time, the spring 116 is compressed by the first baffle ring 114 and the second baffle ring 115. The third sealing ring 117 further improves the sealing performance of the insulation ring 105, avoids corrosion of the spring 116, and extends the service life of the spring 116.

[0026] Secondly, the outer ring 118 is fixedly connected to the first connecting tube 102 and is located on the outer side wall of the first connecting tube 102. One end of the reinforcing rib 119 is fixedly connected to the outer ring 118 and is located on the outer side wall of the outer ring 118. The other end of the reinforcing rib 119 is fixedly connected to the fixing ring 104 and is located on the outer side wall of the fixing ring 104. The reinforcing rib 119 on the outer ring 118 can improve the connectivity between the fixing ring 104 and the first connecting tube 102, share the pressure on the fixing ring 104, and reduce the occurrence of root fracture.

[0027] At the same time, the first flange 120 is fixedly connected to the first connecting pipe 102 and is located on the outer wall of the first connecting pipe 102. The second bolt 122 sequentially penetrates the first flange 120 and the working bellows 101. The second flange 121 is fixedly connected to the second connecting pipe 103 and is located on the outer wall of the second connecting pipe 103. The third bolt 123 sequentially penetrates the second flange 121 and the working bellows 101. The second bolt 122 is used to connect the working bellows 101 and the first flange 120. The third bolt 123 is used to connect the working bellows 101 and the second flange 121, which is convenient for the staff to install and disassemble.

[0028] When using the thermal insulation and waterproof fully embedded expansion joint of the utility model, the second bolt 122 is used to connect the working bellows 101 and the first flange 120, the third bolt 123 is used to connect the working bellows 101 and the second flange 121, the first bolt 108 fixes the insulation ring 105 to one side of the fixing ring 104, the first sealing ring 106 and the second sealing ring 107 are used to seal the insulation ring 105, and the reinforcing rib 119 on the outer ring 118 can improve the connectivity between the fixing ring 104 and the first connecting pipe 102, share the pressure on the fixing ring 104, and reduce the root When the working bellows 101 expands due to heat, the second right-angle ring 113 will slide in the insulation ring 105 due to its own elasticity. At this time, the spring 116 is compressed by the first retaining ring 114 and the second retaining ring 115. The third sealing ring 117 further improves the sealing performance of the insulation ring 105, avoids the corrosion of the spring 116, and prolongs the service life of the spring 116. In this way, the working bellows 101 has the characteristics of insulation and waterproof, which is convenient for the staff to install and disassemble, and reduces the workload of the later maintenance personnel.

[0029] Second embodiment:

[0030] Based on the first embodiment, please refer to Figure 5 and Figure 6 ,in, Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 6 It is an overall front view of the second embodiment of the utility model.

[0031] The utility model provides a thermal insulation and waterproof fully embedded expansion joint, which also includes a fixing component 201. The fixing component 201 includes a supporting frame 202 and a mounting plate 203.

[0032] According to this specific embodiment, the fixing component 201 is arranged on the outer wall of the insulation ring 105. The fixing component 201 is added to facilitate the staff to support the insulation ring 105, reduce the pressure between the pipes, and improve the convenience of the insulation ring 105.

[0033] Among them, the support frame 202 is fixedly connected to the insulation ring 105 and is located on the outer wall of the insulation ring 105. The mounting plate 203 is fixedly connected to the support frame 202 and is located below the support frame 202. The support frame 202 above the mounting plate 203 is fixed to the buried pipe position by screws. In this way, it is convenient for the staff to support the insulation ring 105, reduce the pressure between the pipes, and improve the convenience of the insulation ring 105.

[0034] When using a thermal insulation and waterproof fully buried expansion joint of the utility model, the support frame 202 above the mounting plate 203 is fixed to the buried pipe by screws. In this way, it is convenient for workers to support the thermal insulation ring 105, reduce the pressure between the pipes, and improve the convenience of the thermal insulation ring 105.

[0035] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A thermal insulation and waterproof fully buried expansion joint, characterized in that: The invention comprises a working bellows, a first connecting pipe, a second connecting pipe, a fixing ring, a heat-insulating ring, a first sealing ring, a second sealing ring, a first bolt, a buffer assembly, a reinforcing assembly and two groups of connecting assemblies, wherein the two groups of connecting assemblies are respectively arranged at two ends of the working bellows, the first connecting pipe is arranged at one end of the working bellows, the second connecting pipe is arranged at the other end of the working bellows, the fixing ring is fixedly connected to the first connecting pipe and is located on the outer side wall of the first connecting pipe, the first sealing ring is fixedly connected to the first connecting pipe and is located on the outer side wall of the first connecting pipe, the heat-insulating ring is detachably connected to the fixing ring and is located on one side of the fixing ring, and the heat-insulating ring is movably matched with the first sealing ring, the fixing ring and the heat-insulating ring have threaded holes, the threaded holes are threadedly matched with the first bolt, the second sealing ring is fixedly connected to the second connecting pipe and is located on the outer side wall of the second connecting pipe, the buffer assembly is arranged on the inner side wall of the heat-insulating ring, and the reinforcing assembly is arranged on the outer side wall of the first connecting pipe.

2. The thermal insulation and waterproof fully buried expansion joint according to claim 1, characterized in that: The buffer assembly includes a first right-angle ring, a second right-angle ring, a first retaining ring, a second retaining ring, a spring and a third sealing ring. The first right-angle ring is fixedly connected to the first connecting tube and is located on the outer side wall of the first connecting tube. The second right-angle ring is fixedly connected to the second connecting tube and is located on the outer side wall of the second connecting tube. The second right-angle ring is slidably matched with the first right-angle ring. The first retaining ring is fixedly connected to the first right-angle ring and is located on the outer side wall of the first right-angle ring. The first retaining ring contacts the second right-angle ring. The second retaining ring is fixedly connected to the second right-angle ring and is located on the inner side wall of the second right-angle ring. The second retaining ring contacts the first right-angle ring. One end of the spring is fixedly connected to the first retaining ring and is located on one side of the first retaining ring. The other end of the spring is fixedly connected to the second retaining ring and is located on one side of the second retaining ring. The insulation ring has a sealing groove, which is matched with the third sealing ring. The third sealing ring is fixedly connected to the insulation ring and is located on the inner side wall of the sealing groove. The third sealing ring contacts the second right-angle ring.

3. The thermal insulation and waterproof fully buried expansion joint according to claim 2, characterized in that: The reinforcement assembly includes an outer ring and a reinforcement rib. The outer ring is fixedly connected to the first connecting tube and is located on the outer side wall of the first connecting tube. One end of the reinforcement rib is fixedly connected to the outer ring and is located on the outer side wall of the outer ring. The other end of the reinforcement rib is fixedly connected to the fixing ring and is located on the outer side wall of the fixing ring.

4. The thermal insulation and waterproof fully buried expansion joint according to claim 3, characterized in that: The connecting assembly includes a first flange, a second flange, a second bolt and a third bolt. The first flange is fixedly connected to the first connecting pipe and is located on the outer side wall of the first connecting pipe. The second bolt passes through the first flange and the working bellows in sequence. The second flange is fixedly connected to the second connecting pipe and is located on the outer side wall of the second connecting pipe. The third bolt passes through the second flange and the working bellows in sequence.

5. The thermal insulation and waterproof fully buried expansion joint according to claim 4, characterized in that: The thermal insulation and waterproof fully buried expansion joint also includes a fixing component, and the fixing component is arranged on the outer side wall of the thermal insulation ring.

6. The thermal insulation and waterproof fully buried expansion joint according to claim 5, characterized in that: The fixing assembly includes a support frame and a mounting plate. The support frame is fixedly connected to the insulation ring and is located on the outer side wall of the insulation ring. The mounting plate is fixedly connected to the support frame and is located below the support frame.

Images