High-pressure carbon dioxide conveying pipe joint structure

Abstract

The utility model relates to the technical field of conveying pipe joint structures, in particular to a high-pressure carbon dioxide conveying pipe joint structure which comprises a joint shell, the joint shell is used for connecting conveying pipes at the two ends, two inner pipes which are symmetrically distributed and rotationally connected together are arranged in the joint shell, and an inner conical barrel is arranged in the joint shell. A plurality of internal thread arc-shaped pieces are installed in the inner conical barrel in a sliding and clamping mode through sliding assemblies, and an arc-shaped clamping plate used for clamping and fixing a conveying pipe is arranged at one end of each internal thread arc-shaped piece. Coaxial rotation between the connector and the conveying pipe does not need to be guaranteed when the connector and the conveying pipe are connected, connection is more convenient and labor-saving, meanwhile, even if the positions of the conveying pipes at the two ends of the connector are fixed, assembly connection between the connector and the conveying pipe can be achieved, and use is not limited.

Description

Technical Field

[0001] The utility model relates to the technical field of delivery pipe joint structures, in particular to a high-pressure carbon dioxide delivery pipe joint structure. Background Art

[0002] In the power industry, power storage uses valley electricity to cool and liquefy the CO2 working fluid at night. During the cooling and liquefaction, a large amount of heat is released, and then the water is heated to about 40°C through heat pump technology. After insulation, electricity is generated through two cameras during the day, which improves the energy consumption conversion ratio of energy storage and greatly improves the energy storage efficiency. In the process of CO2 working fluid transportation, many equipment and devices are needed, including high-pressure carbon dioxide transmission pipe joint structure.

[0003] In the process of using the existing high-pressure carbon dioxide delivery pipe joint structure, the delivery pipe and the joint are often connected by screwing. However, in actual use, once the delivery pipe is too long, it is necessary to ensure that the delivery pipe and the joint are coaxially rotated when threading the delivery pipe and the joint, which is extremely laborious. Once the delivery pipes at both ends of the joint are fixed, it will be impossible to thread the delivery pipes at both ends through the joint, which has limitations. Therefore, we propose a high-pressure carbon dioxide delivery pipe joint structure to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a high-pressure carbon dioxide delivery pipe joint structure to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A high-pressure carbon dioxide delivery pipe joint structure includes a joint shell, which is used to connect the delivery pipes at both ends. Two inner tubes that are symmetrically distributed and rotatably connected are provided in the joint shell. An inner conical cylinder is provided in the joint shell. A plurality of internally threaded arc-shaped pieces are slidably mounted on the interior of the inner conical cylinder through a sliding assembly. One end of the internally threaded arc-shaped piece is provided with an arc-shaped clamping plate for clamping and fixing the delivery pipe. One end of the inner tube is provided with an externally threaded cylinder threadedly connected to the internally threaded arc-shaped piece. A driving assembly is provided on the joint shell for driving the two inner tubes to rotate.

[0007] A high-pressure carbon dioxide delivery pipe joint structure as described above: the number of the internally threaded arc-shaped pieces is set to multiple, the internally threaded arc-shaped pieces are distributed at equal angles on the inner side of the inner conical cylinder, and the outer dimensions of the internally threaded arc-shaped pieces are adapted to the inner diameter of the inner conical cylinder.

[0008] A high-pressure carbon dioxide delivery pipe joint structure as described above: the sliding assembly includes a limiting groove opened on the outer wall of the internal threaded arc-shaped piece and a limiting block fixed on the inner wall of the inner conical cylinder, and the limiting groove is slidably connected to the inside of the limiting block.

[0009] A high-pressure carbon dioxide delivery pipe joint structure as described above: the outer surface dimensions of the externally threaded barrel are adapted to the inner surface dimensions of the internally threaded arc-shaped piece, the externally threaded barrel is movably clamped on the inner side of the internally threaded arc-shaped piece, the outer wall of the externally threaded barrel is provided with an external thread, the inner wall of the internally threaded arc-shaped piece is provided with an internal thread, and the externally threaded barrel and the internally threaded arc-shaped piece are threadedly matched.

[0010] A high-pressure carbon dioxide delivery pipe joint structure as described above: the drive assembly includes a bevel gear fixed to the outer periphery of the inner tube and a bevel gear rotatably arranged on the joint housing, the bevel gear is meshed and connected with the bevel gear, and the top end of the bevel gear passes through the joint housing and is fixedly connected to a knob.

[0011] As described above, a high-pressure carbon dioxide delivery pipe joint structure: a sealing groove is provided on the outer wall of one end of the delivery pipe close to the joint shell, a sealing ring is embedded in the sealing groove, and the sealing ring is used to seal between the arc-shaped splint and the delivery pipe when the arc-shaped splint clamps and fixes the delivery pipe.

[0012] In the above-mentioned high-pressure carbon dioxide delivery pipe joint structure, the inner pipe and the externally threaded cylinder are both hollow structures.

[0013] The cam is threadably connected to the end of the tube by a threaded connection to the tube, and the cam has a plurality of inner threaded sections which are symmetrically distributed and rotatably connected together. The cam is provided with an inner conical cylinder, and a plurality of inner threaded arc pieces are slidably and clamped in the interior of the inner conical cylinder by a sliding assembly, and one end of the inner threaded arc piece is provided with an arc clamping plate for clamping and fixing the delivery pipe, and one end of the inner tube is provided with an outer threaded cylinder threadedly connected to the inner threaded arc piece, and a driving assembly is provided on the cam for driving the two inner tubes to rotate, so that when assembling and connecting the cam and the delivery pipes at both ends, the plurality of arc clamping plates at both ends of the cam are sleeved on the outer circumference of the delivery pipe, and it is only necessary to rotate the inner tube to drive the outer threaded cylinder to rotate, and utilize the outer threaded cylinder to be threadedly connected with the inner threaded arc piece to drive the plurality of inner threaded arc pieces to slide obliquely on the inner side of the inner conical cylinder, thereby driving the plurality of arc clamping plates to move to one side and tighten inward, thereby clamping and fixing the delivery pipe, thereby completing the assembly connection between the cam and the delivery pipe, thereby realizing mutual communication after the delivery pipes at both ends of the cam are connected;

[0014] Furthermore, the present invention no longer uses the traditional threaded connection method to connect the joint shell and the delivery pipe. When connecting the joint shell and the delivery pipe, there is no need to ensure that the joint shell and the delivery pipe rotate coaxially, and the connection is more convenient and labor-saving. At the same time, even if the delivery pipe positions at both ends of the joint shell are fixed, the assembly connection between the joint shell and the delivery pipe can be achieved, and there are no limitations on use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a high-pressure carbon dioxide delivery pipe joint structure after the joint shell and the delivery pipe are assembled.

[0016] Figure 2 This is a schematic diagram of the structure of a high-pressure carbon dioxide delivery pipe joint structure after the joint shell and delivery pipe are disassembled.

[0017] Figure 3 This is a structural schematic diagram of a high-pressure carbon dioxide delivery pipe joint structure with the joint shell removed.

[0018] Figure 4 for Figure 3 Schematic diagram of the local structure.

[0019] Figure 5 for Figure 4 Schematic diagram of the explosion structure.

[0020] Figure 6 for Figure 4 Schematic diagram of the local cross-sectional structure.

[0021] Figure 7 for Figure 4 Schematic diagram of the structure after removing the delivery pipe.

[0022] Figure 8 for Figure 7 A structural diagram from another perspective.

[0023] Figure 9 for Figure 8 Schematic diagram of the structure with a single internal threaded arc piece and arc splint removed.

[0024] In the figure: 1. Connector housing; 2. Delivery pipe; 3. Inner pipe; 4. Inner conical cylinder; 5. Internally threaded arc piece; 6. Arc splint; 7. Externally threaded cylinder; 8. Limiting slot; 9. Limiting block; 10. Bevel gear; 11. Bevel gear; 12. Knob; 13. Sealing groove; 14. Sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] See also Figures 1 to 9 As an embodiment of the present utility model, a high-pressure carbon dioxide delivery pipe joint structure includes a joint shell 1, which is used to connect the delivery pipes 2 at both ends. Two inner tubes 3 that are symmetrically distributed and rotatably connected are provided in the joint shell 1. An inner conical cylinder 4 is provided in the joint shell 1. A plurality of internally threaded arc-shaped pieces 5 are slidably mounted on the interior of the inner conical cylinder 4 through a sliding assembly. One end of the internally threaded arc-shaped piece 5 is provided with an arc-shaped splint 6 for clamping and fixing the delivery pipe 2. One end of the inner tube 3 is provided with an externally threaded cylinder 7 threadedly connected to the internally threaded arc-shaped piece 5. A driving assembly is provided on the joint shell 1 for driving the two inner tubes 3 to rotate.

[0027] In this embodiment, when the joint shell 1 and the conveying pipes 2 at both ends are assembled and connected, the multiple arc-shaped clamps 6 at both ends of the joint shell 1 are sleeved on the outer periphery of the conveying pipe 2. It is only necessary to rotate the inner tube 3 through the driving component to drive the external threaded cylinder 7 to rotate, and use the external threaded cylinder 7 to be threadedly connected with the internal threaded arc-shaped piece 5 to drive the multiple internal threaded arc-shaped pieces 5 to slide obliquely on the inner side of the inner conical cylinder 4, thereby driving the multiple arc-shaped clamps 6 to move to one side and tighten inward, thereby clamping and fixing the conveying pipe 2, thereby completing the assembly connection between the joint shell 1 and the conveying pipe 2, and realizing the mutual communication after the conveying pipes 2 at both ends of the joint shell 1 are connected.

[0028] As a further solution of the present invention, the number of the internal threaded arc pieces 5 is set to multiple, and the internal threaded arc pieces 5 are distributed on the inner side of the inner conical cylinder 4 at equal angles. The outer dimensions of the internal threaded arc pieces 5 are adapted to the inner diameter of the inner conical cylinder 4.

[0029] In this embodiment, one end of the internal threaded arc piece 5 is connected to an arc-shaped clamping plate 6. By sliding multiple internal threaded arc pieces 5 obliquely on the inner side of the inner conical cylinder 4, the multiple arc-shaped clamping plates 6 are driven to move toward the side away from the internal threaded arc piece 5 and tighten inward to clamp and fix the conveying pipe 2.

[0030] As a further solution of the present invention, the sliding assembly includes a limiting slot 8 opened on the outer wall of the internal threaded arc-shaped piece 5 and a limiting block 9 fixed on the inner wall of the inner conical cylinder 4, and the limiting slot 8 is slidably connected to the inside of the limiting block 9.

[0031] In this embodiment, when multiple internally threaded arc-shaped pieces 5 slide obliquely on the inner side of the inner conical cylinder 4, the limiting grooves 8 on the outer walls of the internally threaded arc-shaped pieces 5 are slidably engaged in the limiting blocks 9 on the inner wall of the inner conical cylinder 4, ensuring that the internally threaded arc-shaped pieces 5 do not rotate circumferentially when moving on the inner side of the inner conical cylinder 4, and ensuring that the internally threaded arc-shaped pieces 5 can move obliquely and linearly along the inner wall of the inner conical cylinder 4.

[0032] As a further solution of the present invention, the outer dimensions of the externally threaded barrel 7 are adapted to the inner dimensions of the internally threaded arc-shaped piece 5, the externally threaded barrel 7 is movably clamped on the inner side of the internally threaded arc-shaped piece 5, the outer wall of the externally threaded barrel 7 is provided with an external thread, the inner wall of the internally threaded arc-shaped piece 5 is provided with an internal thread, and the externally threaded barrel 7 and the internally threaded arc-shaped piece 5 are threadedly matched.

[0033] In this embodiment, when the inner tube 3 rotates, it will drive the external threaded barrel 7 to rotate synchronously. The external threaded barrel 7 fits the inner wall of the internal threaded arc piece 5 and the threads cooperate, thereby driving multiple internal threaded arc pieces 5 to move synchronously.

[0034] As a further solution of the present invention, the drive assembly includes a bevel gear 10 fixed to the outer periphery of the inner tube 3 and a bevel gear 11 rotatably arranged on the joint housing 1. The bevel gear 11 is meshed with the bevel gear 10, and the top end of the bevel gear 11 passes through the joint housing 1 and is fixedly connected to a knob 12.

[0035] In this embodiment, manually rotating the knob 12 can drive the bevel gear 11 at the bottom end of the knob 12 to rotate, and the bevel gear 11 is engaged with the bevel gear 10 to drive the bevel gear 10 to rotate, thereby driving the inner tube 3 to rotate.

[0036] As a further solution of the present invention, a sealing groove 13 is provided on the outer wall of one end of the delivery pipe 2 close to the joint housing 1, and a sealing ring 14 is embedded and clamped in the sealing groove 13. The sealing ring 14 is used to seal between the arc-shaped splint 6 and the delivery pipe 2 when the arc-shaped splint 6 clamps and fixes the delivery pipe 2.

[0037] In this embodiment, the sealing ring 14 is used to seal between the arc-shaped clamping plates 6 and the delivery pipe 2 when the multiple arc-shaped clamping plates 6 clamp and fix the delivery pipe 2, so as to prevent gas or liquid leakage.

[0038] As a further solution of the present invention, the inner tube 3 and the externally threaded cylinder 7 are both hollow structures.

[0039] In this embodiment, the inner tube 3 and the externally threaded cylinder 7 are configured as a hollow structure, thereby ensuring that after the joint housing 1 is assembled and connected with the delivery pipes 2 at both ends, the two delivery pipes 2 remain connected.

[0040] When assembling and connecting the joint housing 1 and the delivery pipes 2 at both ends, the multiple arc-shaped clamping plates 6 at both ends of the joint housing 1 are sleeved on the outer periphery of the delivery pipe 2. Manually turning the knob 12 can drive the bevel gear 11 at the bottom end of the knob 12 to rotate, and the bevel gear 11 is engaged with the bevel gear 10 to drive the bevel gear 10 to rotate, thereby driving the inner tube 3 to rotate, and rotating the inner tube 3 drives the externally threaded cylinder 7 to rotate, and the externally threaded cylinder 7 is threadedly connected with the internally threaded arc-shaped piece 5, driving the multiple internally threaded arc-shaped pieces 5 to slide obliquely on the inner side of the inner conical cylinder 4, thereby driving the multiple arc-shaped clamping plates 6 to move to one side and It is tightened inward to clamp and fix the delivery pipe 2, thereby completing the assembly connection between the joint shell 1 and the delivery pipe 2, thereby realizing the mutual communication after the delivery pipes 2 at both ends of the joint shell 1 are connected, and the traditional threaded connection method is no longer used to connect the joint shell 1 and the delivery pipe 2. When connecting the joint shell 1 and the delivery pipe 2, there is no need to ensure that the joint shell 1 and the delivery pipe 2 rotate coaxially, and the connection is more convenient and labor-saving. At the same time, even if the positions of the delivery pipes 2 at both ends of the joint shell 1 are fixed, the assembly connection between the joint shell 1 and the delivery pipe 2 can be realized, and there are no limitations on use.

[0041] The above embodiments are exemplary rather than restrictive, so any technical solution of the present invention that can be implemented in other specific forms without departing from the spirit or basic features of the present invention is included in the present invention.

Claims

1. A high-pressure carbon dioxide delivery pipe joint structure, comprising a joint housing (1), characterized in that: The joint shell (1) is used to connect the delivery pipes (2) at both ends. Two inner pipes (3) symmetrically distributed and rotatably connected are provided in the joint shell (1). An inner conical cylinder (4) is provided in the joint shell (1). A plurality of internally threaded arc-shaped pieces (5) are slidably mounted inside the inner conical cylinder (4) through a sliding assembly. An arc-shaped clamping plate (6) for clamping and fixing the delivery pipe (2) is provided at one end of the internally threaded arc-shaped piece (5). An externally threaded cylinder (7) threadedly connected to the internally threaded arc-shaped piece (5) is provided at one end of the inner pipe (3). A driving assembly is provided on the joint shell (1) for driving the two inner pipes (3) to rotate.

2. A high-pressure carbon dioxide delivery pipe joint structure according to claim 1, characterized in that: The number of the internal thread arc-shaped pieces (5) is set to be multiple, and the internal thread arc-shaped pieces (5) are distributed at equal angles on the inner side of the inner conical cylinder (4), and the outer dimensions of the internal thread arc-shaped pieces (5) are adapted to the inner diameter of the inner conical cylinder (4).

3. A high-pressure carbon dioxide delivery pipe joint structure according to claim 1, characterized in that: The sliding assembly comprises a limiting card slot (8) provided on the outer wall of the internal thread arc-shaped piece (5) and a limiting card block (9) fixed on the inner wall of the inner conical cylinder (4), wherein the limiting card slot (8) is slidably engaged with the inside of the limiting card block (9).

4. A high-pressure carbon dioxide delivery pipe joint structure according to claim 1, characterized in that: The outer dimensions of the externally threaded barrel (7) are matched with the inner dimensions of the internally threaded arc-shaped piece (5); the externally threaded barrel (7) is movably clamped on the inner side of the internally threaded arc-shaped piece (5); the outer wall of the externally threaded barrel (7) is provided with an external thread; the inner wall of the internally threaded arc-shaped piece (5) is provided with an internal thread; the externally threaded barrel (7) and the internally threaded arc-shaped piece (5) are threadedly matched.

5. A high-pressure carbon dioxide delivery pipe joint structure according to claim 1, characterized in that: The drive assembly comprises a bevel gear (10) fixed to the outer periphery of the inner tube (3) and a bevel gear (11) rotatably arranged on the joint housing (1), the bevel gear (11) being meshedly connected with the bevel gear (10), and the top end of the bevel gear (11) passes through the housing of the joint housing (1) and is fixedly connected to a knob (12).

6. A high-pressure carbon dioxide delivery pipe joint structure according to claim 1, characterized in that: A sealing groove (13) is provided on the outer wall of one end of the delivery pipe (2) close to the joint housing (1), and a sealing ring (14) is embedded and clamped in the sealing groove (13). The sealing ring (14) is used to seal between the arc-shaped clamping plate (6) and the delivery pipe (2) when the arc-shaped clamping plate (6) clamps and fixes the delivery pipe (2).

7. A high-pressure carbon dioxide delivery pipe joint structure according to claim 1, characterized in that: The inner tube (3) and the externally threaded cylinder (7) are both hollow structures.

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