CN220016449U

CN220016449U - Polyurethane directly buries insulating tube convenient to concatenation

Info

Publication number: CN220016449U
Application number: CN202321522306.4U
Authority: CN
Inventors: 王劲松
Original assignee: Hejian Liyuan Thermal Insulation And Anti Corrosion Engineering Co ltd
Current assignee: Hejian Liyuan Thermal Insulation And Anti Corrosion Engineering Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-11-14
Anticipated expiration: 2033-06-15

Abstract

The utility model discloses a polyurethane directly-buried heat-insulating pipe convenient to splice, and belongs to the technical field of aluminum foil cutlery box forming devices. The utility model discloses a polyurethane direct-buried heat-insulating pipe convenient to splice, which comprises a first heat-insulating pipe and a second heat-insulating pipe, wherein the front end of the first heat-insulating pipe is provided with a connecting block, four movable ports are formed in the central positions around the connecting block, a fixed block is arranged at the rear end of the inside of each movable port, the fixed block is welded with the connecting block, a fixed component is arranged in the fixed block, and a connecting component is arranged at the front end of the inside of each movable port.

Description

Polyurethane directly buries insulating tube convenient to concatenation

Technical Field

The utility model belongs to the technical field of directly-buried heat-insulating pipes, and particularly relates to a polyurethane directly-buried heat-insulating pipe convenient to splice.

Background

The directly buried insulating pipes are also called prefabricated insulating pipes in three types: is a plastic sleeve steel heat-insulating pipe (high-density polyethylene directly-buried heat-insulating pipeline), a steel outer protective pipe vacuum composite heat-insulating prefabricated directly-buried pipe and a steel sleeve steel heat-insulating pipe (high-temperature steam heat-insulating pipe). Because of the excellent performance characteristics, the heat insulation material can be used in heat insulation work of air pipelines and water pipelines in buildings, can also be used in refrigeration industry pipelines with special requirements on temperature, can ensure that the medium in the pipelines cannot leak, prevents the penetration of moisture and plays a role in sealing. At present, two connecting methods of directly buried heat insulation pipelines are mainly adopted, namely, a heat shrinkage tape method is adopted: when the method is used for connecting, the sleeve of the joint is made of the same material as the heat-insulating pipeline, and the polyethylene has the same density so as to ensure the tightness of the joint. Then foaming is carried out on the joint sleeve, after the foaming is completed, high-density polyethylene is adopted for plugging, and finally, the plugging is continued by a welding method, and the second is an electric melting sleeve method: the welding method needs a sleeve embedded with a resistance wire, the sleeve is tightly wound on a hot-melt sleeve in a shell by using a binding belt, then a power supply is switched on, the welding time needs to be preset, the welding is stopped after the power is off, the sleeve is completely cooled, and the welding is very safe by using the connection. However, the two methods are relatively troublesome, the splicing work of the two heat-insulating pipes can be completed only by using large manpower and material resources, water cannot enter during the splicing, and the situation of raining can be encountered due to time and labor waste of the splicing work, so that the polyurethane direct-buried heat-insulating pipe capable of being spliced conveniently is very important.

The utility model discloses a prefabricated direct burial insulating tube of polyurethane convenient to connect in patent document CN 217208392U, including the protective layer, the inside fixed mounting of protective layer has the polyurethane layer, the inside fixed mounting of protective layer has the backup pad, the inside fixed mounting of polyurethane layer has the work pipe, the left side fixed mounting of work pipe has female head, the surface fixed mounting of female head has the connecting block, the right side fixed mounting of work pipe has public head, the surface fixed mounting of public head has connection structure. According to the utility model, the polyurethane layer can be prevented from being damaged by mechanical hard objects through the arranged protective layer, and can play a role in corrosion prevention, the arranged polyurethane layer can play a role in heat preservation and water prevention, the arranged female head plays a role in connection and fixation, the arranged connecting block is used for connecting a connecting structure, the arranged male head plays a role in support and fixation, and the arranged connecting structure is convenient for a user to connect the prefabricated directly-buried heat insulation pipe.

Although the speed of the splicing is improved, a plurality of defects are obviously overcome, the splicing can be performed only by aligning the two heat-insulating pipes when the two heat-insulating pipes are spliced, the heat-insulating pipes are large and heavy, the two heat-insulating pipes are difficult to butt joint together with one person, time and labor are wasted, the heat-insulating pipes have the largest effect of heat preservation, the air tightness cannot be ensured after the two heat-insulating pipes are spliced together, and the spliced part is exposed outside and cannot be covered by the heat-insulating layer, so that the heat-insulating pipes cannot have the heat-insulating effect.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the polyurethane direct-buried heat-insulating pipe which is convenient to splice, and by arranging the connecting component, the two heat-insulating pipes can be clamped and combined together after being butted, when the two heat-insulating pipes are spliced, the spliced part is positioned at the connecting port in the connecting block and cannot be exposed to the outside, and in addition, the two heat-insulating pipes are combined more tightly and have good air tightness by arranging the fixing component, the sealing groove and the sealing rubber ring.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a polyurethane directly buries insulating tube convenient to concatenation, includes insulating tube and No. two insulating tubes, no. two insulating tubes are located the front end of insulating tube, just insulating tube is the same with No. two insulating tubes's size, no. one insulating tube front end is provided with the connecting block, fixed plate groove has been seted up to the front end middle part position of connecting block, the connector has been seted up at the connecting block middle part, four movable mouths have been seted up to the central point around of connecting block, the inside rear end of movable mouths is provided with the fixed block, the fixed block welds together with the connecting block, the inside of fixed block is provided with fixed subassembly, the inside front end of movable mouthful is provided with coupling assembling, movable mouthful inside top and bottom have been seted up the removal groove, the seal groove has been seted up to the inside central point of connecting block, no. two insulating tubes outside are provided with the fixed plate, the back of fixed plate is 10 centimetres apart from No. two insulating tubes back one end, the fixed plate back is provided with sealed rubber circle.

Preferably, the size of the fixing plate groove is 0.5 times of that of the connecting block, the length and width of the fixing plate groove are the same as those of the fixing plate, and the depth of the fixing plate groove is 2 times of that of the fixing plate.

Preferably, the diameter of the connecting port is the same as the outer diameter of the first heat insulation pipe, and the diameter of the connecting port is 0.9 times of the diameter of the sealing groove.

Preferably, the size of the sealing rubber ring is the same as the size of the sealing groove.

Preferably, the fixing assembly comprises a threaded rod, one end of the threaded rod is welded at the rear end of the connecting assembly, the other end of the threaded rod extends out of the back of the fixing block, and a nut is arranged on the back of the fixing block outside the threaded rod.

Preferably, the connecting assembly comprises a movable block positioned at the front end of the inside of the movable opening, a movable groove is formed in the movable block, a wedge block is arranged in the movable block, the bottom of the wedge block is positioned at the top of the movable groove, the top of the wedge block is positioned at the outer side of the top of the movable block, a U-shaped rod is arranged at the bottom of the wedge block, an annular block is connected below the inner part of the U-shaped rod, the bottom of the annular block is positioned at the outer side of the bottom of the movable block, stretching buckles are arranged at the bottom of the annular block, two symmetrically distributed small wedge blocks are arranged at the two sides of the bottom of the wedge block and are provided with reset springs, the other ends of the reset springs are fixed on the inner wall of the movable groove, and two sliding blocks are arranged at the middle positions of the two sides of the movable block.

Preferably, the bottom dimension of the sliding block is the same as the dimension of the bottom of the moving groove, and the height of the sliding block is the same as the height of the movable block.

Preferably, the inner dimension of the movable groove is 0.5 times that of the movable block, the length and the height of the movable groove are consistent with those of the small wedge block, and the width of the movable groove is 5 times that of the bottom of the small wedge block.

Preferably, the distance from the bottom of the wedge block to the bottom of the fixed plate groove is equal to the height of the fixed plate.

Compared with the prior art, the utility model has the beneficial effects that:

when the heat-insulating pipe I is used, the heat-insulating pipe II is moved to the heat-insulating pipe I, the fixed plate on the heat-insulating pipe II meets the wedge blocks and extrudes the wedge blocks in the moving process, the wedge blocks move inwards due to extrusion, so that the two small wedge blocks in the movable groove move to two sides to compress the reset spring, the wedge blocks can be taken in the connecting block, at the moment, the heat-insulating pipe II continues to move and is connected with the heat-insulating pipe I in the connecting port, at the moment, the sealing rubber ring on the fixed plate can be tightly combined with the sealing groove on the connecting block, meanwhile, the fixed plate can just completely pass through the wedge blocks, the wedge blocks are not extruded any more at the moment, the reset spring in the movable groove is quickly reset, the small wedge blocks are pushed to move towards the middle part, the wedge blocks are further moved towards the outside of the connecting block, the fixed plate is clamped after the wedge blocks are popped up, the function of splicing the two heat-insulating pipes together is realized, when the two heat-insulating pipes are required to be separated, the external stretching buckle is pulled, the ring-shaped block is pulled to move, and the U-shaped rod is pulled to drive the two heat-insulating pipes to move towards the inside of the connecting block, and the inside of the connecting block can be disassembled. By using the utility model, the labor force required by splicing can be reduced, and the operation such as welding is not needed, so that the time for splicing two heat preservation pipes can be greatly saved, the influence caused by natural factors can be avoided, and the method can be said to be twice as great as the effort.

When two insulating pipes splice together needs to be fixed, need to utilize the spanner to rotate the nut in the fixed subassembly, the nut can remove along the threaded rod, because the fixed block welds on the connecting block, so the threaded rod can pull the movable block in the connecting assembly, the movable block on the movable block can be along removing the groove and remove to the fixed block this moment, and then make wedge compression fixed plate for sealing rubber circle receives the extrusion in the seal groove, finally plays fixed two insulating pipes and sealed effect. By utilizing the design, the tightness of splicing can be well ensured, the sealing effect can be achieved, the condition that water and air leakage cannot occur in the heat insulation pipe is ensured, and unnecessary troubles are avoided for the later increase.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the overall structure of a first insulating pipe according to the present utility model;

FIG. 3 is a schematic view of a connecting block structure according to the present utility model;

FIG. 4 is a schematic diagram of the overall structure of a second insulating tube according to the present utility model;

FIG. 5 is a schematic view of a fixing assembly according to the present utility model;

fig. 6 is a schematic structural view of a connecting assembly according to the present utility model.

The reference numerals in the figures illustrate: 1. a first heat preservation pipe; 2. a second heat preservation pipe; 3. a connecting block; 4. a fixed block; 5. a movable opening; 6. a fixing assembly; 7. a connection assembly; 8. a fixing plate; 9. a fixed plate groove; 10. sealing grooves; 11. a moving groove; 12. sealing the rubber ring; 13. a connection port; 601. a threaded rod; 602. a nut; 701. a movable block; 702. wedge blocks; 703. a U-shaped rod; 704. a small wedge; 705. an annular block; 706. stretching buckle; 707. a return spring; 708. a movable groove; 709. a sliding block.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

At present, the splicing of the directly buried insulating pipes adopts two methods, namely a heat shrinkage belt method and an electric hot melting sleeve method, which are troublesome to use, have certain requirements on splicing environment, are time-consuming and labor-consuming, and are very tedious when the connecting pipes are disassembled, and are solved by the following scheme.

Referring to fig. 1-4 and fig. 6, the present utility model provides the following technical solutions:

the utility model provides a polyurethane directly buries insulating tube convenient to concatenation, includes insulating tube 1 and No. two insulating tubes 2, its characterized in that: the second heat preservation pipe 2 is positioned at the front end of the first heat preservation pipe 1, the first heat preservation pipe 1 and the second heat preservation pipe 2 have the same size, the front end of the first heat preservation pipe 1 is provided with a connecting block 3, the middle part of the front end of the connecting block 3 is provided with a fixed plate groove 9, the middle part of the connecting block 3 is provided with a connecting port 13, the central position around the connecting block 3 is provided with four movable ports 5, the connecting assembly 7 has a movable area, the rear end of the inside of the movable port 5 is provided with a fixed block 4, the fixed block 4 is welded with the connecting block 3, the inside of the fixed block 4 is provided with a fixed assembly 6, the inside front end of movable mouth 5 is provided with coupling assembling 7, movable mouth 5 inside top and bottom have been seted up and have been removed groove 11, sealing groove 10 has been seted up to the inside central point of connecting block 3, no. two insulating tube 2 outsides are provided with fixed plate 8, the back of fixed plate 8 is 10 centimetres from No. two insulating tube 2 back one end for two pipelines can realize the butt joint in connector 13 inside, guarantee that the butt joint department can not expose in the outside, fixed plate 8 back is provided with sealing rubber circle 12, can guarantee the gas tightness of pipeline after combining with sealing groove 10.

The size of the fixing plate groove 9 is 0.5 times that of the connecting block 3, and the length and width of the fixing plate groove 9 are the same as those of the fixing plate 8, so that the fixing plate 8 and the fixing plate groove 9 are combined to be more fit, and the depth of the fixing plate groove 9 is 2 times that of the fixing plate 8, so as to leave a distance for the connecting assembly 7.

The connecting assembly 7 comprises a movable block 701 positioned at the front end of the inside of the movable port 5, a movable groove 708 is formed in the movable block 701, a wedge block 702 is arranged in the movable block 701, the bottom of the wedge block 702 is positioned at the top of the movable groove 708, the top of the wedge block 702 is positioned at the outer side of the top of the movable block 701, a U-shaped rod 703 is arranged at the bottom of the wedge block 702, an annular block 705 is connected below the inner part of the U-shaped rod 703, the annular block 705 is not influenced when the wedge block moves, the bottom of the annular block 705 is positioned at the outer side of the bottom of the movable block 701, a tension buckle 706 is arranged at the bottom of the annular block 705, two symmetrically distributed small wedge blocks 704 are arranged at the two sides of the bottom of the wedge block 702 and are arranged in the movable groove 708, a reset spring 707 is arranged on the side surface of the small wedge block 704, the other end of the reset spring 707 is fixed on the inner wall 708 of the movable groove 708, the small wedge block 708 can return to the original position, and two sliding blocks 709 are arranged at the middle positions of the two sides of the movable block 701.

The bottom dimension of the sliding block 709 is the same as the dimension of the bottom of the moving groove 11, and the height of the sliding block 709 is the same as the height of the movable block 701, so that the sliding block 709 can be better clamped in the moving groove 11.

The inner dimension of the movable groove 708 is 0.5 times the dimension of the movable block 701, and the length and height of the movable groove 708 are consistent with the width of the small wedge block 704, and the width of the movable groove 708 is 5 times the width of the bottom of the small wedge block 704.

The distance from the bottom of the wedge-shaped block 702 to the bottom of the fixing plate groove 9 is equal to the height of the fixing plate 8, so that the fixing is more compact.

Further explanation is needed: firstly, move the insulating tube No. two to insulating tube No. one, the fixed plate on the insulating tube No. two can meet with the wedge and extrude the wedge in the removal process, the wedge is moved to the inside of connecting block owing to receive the extrusion, because the wedge moves inwards and then make two little wedges of movable groove inside move compression reset spring to both sides, thereby make the wedge can take in inside the connecting block, at this moment, the insulating tube No. two continues to move and can link to each other in the connector with insulating tube No. one, sealing rubber circle on the fixed plate can closely combine together with seal groove on the connecting block at this moment, simultaneously, the fixed plate can just pass through the wedge completely, the wedge no longer receives the extrusion owing to this moment, lead to the reset spring in movable groove inside to reset rapidly, promote little wedge to the middle part and remove to the connecting block outside, and then make the wedge pop out the back, will block the fixed plate, realize will two insulating tubes splice together's function, when two insulating tubes need to separate, only pulling outside tensile knot, the tensile knot can stimulate the annular piece to remove, and then pull U type pole drive the wedge to move to the wedge inside, just can dismantle two connecting blocks inside the connecting block, can be taken apart to the connecting block inside.

Examples

To the inseparabler of two insulating pipes concatenation of needs assurance and guarantee the gas tightness of concatenation department, solve through following scheme.

Referring to fig. 1-5, the present utility model provides the following technical solutions:

The diameter of the connecting port 13 is the same as the outer diameter of the first heat preservation pipe 1, and the diameter of the connecting port 13 is 0.9 times of the diameter of the sealing groove 10, so that the sealing groove 10 is not connected with the connecting block 13.

The size of the sealing rubber ring 12 is the same as that of the sealing groove 10, so that the sealing rubber ring 12 and the sealing groove 10 can be perfectly combined together.

The fixing assembly 6 comprises a threaded rod 601, one end of the threaded rod 601 is welded at the rear end of the connecting assembly 7, the other end of the threaded rod 601 extends out of the back of the fixing block 4, and a nut 602 is arranged on the back of the fixing block 4 outside the threaded rod 601.

Further explanation is needed: when two insulating pipes splice together needs to be fixed, need to utilize the spanner to rotate the nut in the fixed subassembly, the nut can remove along the threaded rod, because the fixed block welds on the connecting block, so the threaded rod can pull the movable block in the connecting assembly, the movable block on the movable block can be along removing the groove and remove to the fixed block this moment, and then make wedge compression fixed plate for sealing rubber circle receives the extrusion in the seal groove, finally plays fixed two insulating pipes and sealed effect.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a polyurethane directly buries insulating tube convenient to concatenation, includes insulating tube (1) and No. two insulating tubes (2), its characterized in that: the second heat preservation pipe (2) is positioned at the front end of the first heat preservation pipe (1), the first heat preservation pipe (1) and the second heat preservation pipe (2) are the same in size, the front end of the first heat preservation pipe (1) is provided with a connecting block (3), the middle part of the front end of the connecting block (3) is provided with a fixed plate groove (9), the middle part of the connecting block (3) is provided with a connecting port (13), the central position around the connecting block (3) is provided with four movable ports (5), the rear end of the inside of the movable port (5) is provided with a fixed block (4), fixed block (4) and connecting block (3) weld together, the inside of fixed block (4) is provided with fixed subassembly (6), inside front end of movable mouth (5) is provided with coupling assembling (7), movable groove (11) have been seted up on inside top and the bottom of movable mouth (5), seal groove (10) have been seted up to inside central point of connecting block (3), no. two insulating tube (2) outside is provided with fixed plate (8), the back of fixed plate (8) is apart from No. two insulating tube (2) back one end 10 centimetres, fixed plate (8) back is provided with sealing rubber circle (12).

2. The polyurethane direct-buried insulation pipe convenient to splice according to claim 1, wherein: the size of the fixed plate groove (9) is 0.5 times of that of the connecting block (3), the length and the width of the fixed plate groove (9) are the same as those of the fixed plate (8), and the depth of the fixed plate groove (9) is 2 times of the height of the fixed plate (8).

3. The polyurethane direct-buried insulation pipe convenient to splice according to claim 1, wherein: the diameter of the connecting port (13) is the same as the outer diameter of the first heat preservation pipe (1), and the diameter of the connecting port (13) is 0.9 times of the diameter of the sealing groove (10).

4. The polyurethane direct-buried insulation pipe convenient to splice according to claim 1, wherein: the size of the sealing rubber ring (12) is the same as that of the sealing groove (10).

5. The polyurethane direct-buried insulation pipe convenient to splice according to claim 1, wherein: the fixing assembly (6) comprises a threaded rod (601), one end of the threaded rod (601) is welded at the rear end of the connecting assembly (7), the other end of the threaded rod (601) extends out of the back of the fixing block (4), and a nut (602) is arranged on the back of the fixing block (4) outside the threaded rod (601).

6. The polyurethane direct-buried insulation pipe convenient to splice according to claim 1, wherein: the utility model provides a connecting assembly (7) is including being located movable block (701) of the inside front end of movable mouth (5), movable groove (708) have been seted up to the inside of movable block (701), the inside of movable block (701) is provided with wedge (702), wedge (702) bottom is located the top of movable groove (708), wedge (702) top is located the top outside of movable block (701), wedge (702) bottom is provided with U type pole (703), the inside below of U type pole (703) is connected with annular block (705), annular block (705) bottom is located the bottom outside of movable block (701), just annular block (705) bottom is provided with tensile knot (706), wedge (702) bottom both sides are located inside being provided with of movable groove (708) two symmetrically distributed's small wedge (704), the side of small wedge (704) is provided with reset spring (707), reset spring (707) other end is fixed on the inner wall of movable groove (708), the both sides of movable block (705) are provided with two slip blocks (709).

7. The polyurethane direct-buried insulation pipe convenient to splice according to claim 6, wherein: the bottom dimension of the sliding block (709) is the same as the dimension of the bottom of the moving groove (11), and the height of the sliding block (709) is the same as the height of the movable block (701).

8. The polyurethane direct-buried insulation pipe convenient to splice according to claim 6, wherein: the inner dimension of the movable groove (708) is 0.5 times that of the movable block (701), the length and the height of the movable groove (708) are consistent with those of the small wedge block (704), and the width of the movable groove (708) is 5 times that of the bottom of the small wedge block (704).

9. The polyurethane direct-buried insulation pipe convenient to splice according to claim 6, wherein: the distance from the bottom of the wedge-shaped block (702) to the bottom of the fixed plate groove (9) is equal to the height of the fixed plate (8).