Low-temperature-resistant two-channel rotary joint

Abstract

The utility model relates to the technical field of rotary joints, in particular to a low-temperature-resistant two-channel rotary joint which comprises a protective shell A. The inner wall of the protective shell A is fixedly connected with a heat preservation pad. Through the arrangement of the protective shell A, heat preservation pads, a connecting pipe, a protective shell B, a fixing ring, a rotating shaft, a fixing block, a rotating plate, a positioning plate and a positioning bolt, during use, a worker covers the device body with the protective shell A and the protective shell B, and the heat preservation pads are arranged in the protective shell A and the protective shell B, so that the low-temperature-resistant effect of the device used in a low-temperature environment can be improved, and the service life of the device is prolonged. A worker sleeves the two ends of the protective shell with fixing rings, the fixing rings are made to rotate along rotating shafts, the protective shell is fixed, rotating plates on fixing blocks on the fixing rings are moved into positioning plates, the rotating plates in the fixing blocks are fixed through positioning bolts, and the protective shell A and the protective shell B are fixed through the fixing rings; and the influence of collision and low temperature during use of the device is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary joints, in particular to a low-temperature resistant two-pass rotary joint. Background Art

[0002] A rotary joint is a pipe connection device that allows the connected pipes to rotate relative to each other. It can be used to convey various media such as gas, liquid, and oil. Its compact design uses a flange connection and can be effectively integrated into customer equipment. Function Description: A rotary joint is a closed rotary connector that rotates 360° to convey the medium. Some rotary joints need to be used in low-temperature environments, so a low-temperature resistant rotary joint is required.

[0003] The Chinese utility model patent application publication CN218671046U discloses a low-temperature-resistant two-way rotary joint, comprising a guide bearing, a hollow shaft, a retaining ring, and two oil ports. The guide bearing is disposed at the top of the hollow shaft, the retaining ring is sleeved on the surface of the hollow shaft, and the oil port is disposed at the front side of the hollow shaft. The utility model, through the coordinated use of the guide bearing, the hollow shaft, the retaining ring, the two oil ports, the positioning ring, the dustproof assembly, the housing, and the retaining assembly, enables the user to press a pressing rod, which moves backward. The pressing rod drives the snap rod upward through a path slot, and the bottom of the snap rod leaves the inner cavity of the first through hole. This solves the problem that the oil ports of existing two-way rotary joints are not protected from dust during storage, making it easy for dust or particles to enter the oil ports during storage, which can easily cause damage to the two-way rotary joint and reduce the practicality of the two-way rotary joint.

[0004] However, the device lacks the function of protection and insulation. In actual use, when the device is placed in a low-temperature environment, the outer shell of the device cannot be protected and insulated, so that long-term use may cause damage to the device. Not only that, the device also lacks the function of disassembly and maintenance. In actual use, when the device is used for a long time or fails, it is inconvenient for the staff to disassemble the device for maintenance, which reduces the work efficiency of the staff. Utility Model Content

[0005] The purpose of the utility model is to provide a low-temperature resistant two-way rotary joint to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A low temperature resistant two-way rotary joint comprising

[0008] Protective shell A, with a thermal insulation pad fixedly connected to its inner wall, a connecting pipe fixedly connected to its inner wall, one end of protective shell A fixedly connected to protective shell B, and one end of protective shell B fixedly connected to a fixing ring. The bottom of the fixing ring is rotatably connected to a rotating shaft, the top of the fixing ring is fixedly connected to a fixing block, the top of the fixing block is rotatably connected to a rotating plate, one end of the rotating plate is fixedly connected to a positioning plate, and the top of the positioning plate is threaded with a positioning bolt;

[0009] A threaded groove is provided on the inner wall of the connecting pipe, a fixing pipe is threadedly connected to the inner wall of the threaded groove, one end of the fixing pipe is fixedly connected to a fixing flange, and a fixing bolt is threadedly connected to the front edge of the fixing flange.

[0010] Preferably, a circular slot is provided at the center of the front face of the fixing flange, and a rotary joint A is rotatably connected to the inner wall of the circular slot.

[0011] Preferably, an arc-shaped groove is formed at one end of the connecting pipe, and a sealing gasket is fixedly connected to the inner wall of the arc-shaped groove.

[0012] Preferably, a circular slot is provided on the front edge of the fixing tube, and the inner wall of the circular slot is threadedly connected to one end of a positioning bolt.

[0013] Preferably, a circular slot is provided at one end of the connecting pipe, and a rotary joint B is rotatably connected to the inner wall of the circular slot.

[0014] Preferably, one end of the inner wall of the protective shell A is fixedly connected to the side of the rotary joint A, and the inner wall of the thermal insulation pad is fixedly connected to the side of the fixed pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This low-temperature resistant two-way rotary joint is equipped with a protective shell A, an insulation pad, a connecting pipe, a protective shell B, a fixing ring, a rotating shaft, a fixing block, a rotating plate, a positioning plate and a positioning bolt. When in use, the staff covers the protective shell A and the protective shell B on the device body. The protective shell A and the protective shell B are both provided with insulation pads, which can improve the low-temperature resistance of the device when used in a low-temperature environment. The staff puts fixing rings on both ends of the protective shell, allows the fixing rings to rotate along the rotating shaft to fix the protective shell, moves the rotating plate on the fixing block on the fixing ring into the positioning plate, and uses the positioning bolts to fix the rotating plate in the fixing block, thereby realizing the fixing of the protective shell A and the protective shell B by the fixing ring, effectively protecting the device from the impact of collision and low temperature during use.

[0017] 2. This low-temperature resistant two-way rotary joint is equipped with a connecting pipe, a fixed pipe, a fixed flange and fixed bolts. When in use, when the device is used for a long time or a fault occurs inside the device, the staff first rotates the connecting pipe, and the threaded groove in the connecting pipe will be separated from the threaded pipe at one end of the fixed pipe. The staff then removes the fixing bolts on the fixed flange to separate the fixed flange from the fixed pipe, thereby realizing the disassembly of the rotary joints at both ends of the device, making it convenient for the staff to maintain the interior of the device and ensuring that the device can continue to be used normally in a low-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the utility model;

[0019] Figure 2 This is a schematic diagram of the main device of the utility model;

[0020] Figure 3 This is a disassembly diagram of the protective device of the present utility model;

[0021] Figure 4 This is a disassembled view of the main body of the utility model.

[0022] In the figure: 1. Protective shell A; 2. Insulation pad; 3. Connecting pipe; 4. Protective shell B; 5. Fixing ring; 6. Rotating shaft; 7. Fixing block; 8. Rotating plate; 9. Positioning plate; 10. Positioning bolt; 11. Fixing pipe; 12. Fixing flange; 13. Fixing bolt; 14. Rotating joint A; 15. Sealing gasket; 16. Rotating joint B. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4As shown, the utility model provides a technical solution: a low-temperature resistant two-way rotary joint, including a protective shell A1, the inner wall of the protective shell A1 is fixedly connected to a heat-insulating pad 2, the inner wall of the heat-insulating pad 2 is fixedly connected to a connecting pipe 3, one end of the protective shell A1 is fixedly connected to a protective shell B4, one end of the protective shell B4 is fixedly connected to a fixing ring 5, the bottom of the fixing ring 5 is rotatably connected to a rotating shaft 6, the top of the fixing ring 5 is fixedly connected to a fixing block 7, the top of the fixing block 7 is rotatably connected to a rotating plate 8, one end of the rotating plate 8 is fixedly connected to a positioning plate 9, and the positioning plate 9 is fixedly connected to the bottom of the fixing ring 5. The top of the plate 9 is threadedly connected with a positioning bolt 10; the inner wall of the connecting pipe 3 is provided with a threaded groove, the inner wall of the threaded groove is threadedly connected with a fixing pipe 11, one end of the fixing pipe 11 is fixedly connected with a fixing flange 12, and the front edge of the fixing flange 12 is threadedly connected with a fixing bolt 13; through the arrangement of the protective shell A1, the insulation pad 2, the connecting pipe 3, the protective shell B4, the fixing ring 5, the rotating shaft 6, the fixing block 7, the rotating plate 8, the positioning plate 9 and the positioning bolt 10, when in use, the staff covers the protective shell A1 and the protective shell B4 on the device body, Both the protective shell A1 and the protective shell B4 are provided with an insulation pad 2, which can improve the low-temperature resistance of the device when used in a low-temperature environment. The staff puts a fixing ring 5 on both ends of the protective shell, allows the fixing ring 5 to rotate along the rotating shaft 6 to fix the protective shell, moves the rotating plate 8 on the fixing block 7 on the fixing ring 5 into the positioning plate 9, and uses the positioning bolt 10 to fix the rotating plate 8 in the fixing block 7, so that the fixing ring 5 fixes the protective shell A1 and the protective shell B4, effectively protecting the device from collision and low temperature during use. Through the arrangement of the connecting pipe 3, the fixing pipe 11, the fixing flange 12 and the fixing bolt 13, when in use, when the device is used for a long time or a fault occurs inside the device, the staff first rotates the connecting pipe 3, and the threaded groove in the connecting pipe 3 will separate from the threaded pipe at one end of the fixing pipe 11. The staff removes the fixing bolt 13 on the fixing flange 12 to separate the fixing flange 12 from the fixing pipe 11, thereby realizing the disassembly of the rotating joints at both ends of the device, facilitating the staff's maintenance of the internal part of the device and ensuring that the device can continue to be used normally in a low-temperature environment.

[0025] In this embodiment, preferably, a circular slot is opened in the center of the front of the fixed flange 12, and the inner wall of the circular slot is rotatably connected to a rotating joint A14; through the setting of the fixed flange 12 and the rotating joint A14, when in use, the rotating joint A14 is fixed on the fixed flange 12.

[0026] In this embodiment, preferably, an arc-shaped groove is opened at one end of the connecting tube 3, and a sealing gasket 15 is fixedly connected to the inner wall of the arc-shaped groove; through the arrangement of the connecting tube 3 and the sealing gasket 15, when in use, the sealing gasket 15 can improve the tightness and airtightness between the connecting tube 3 and the fixed tube 11.

[0027] In this embodiment, preferably, a circular slot is opened on the front edge of the fixing tube 11, and the inner wall of the circular slot is threadedly connected to one end of the positioning bolt 10; through the setting of the fixing tube 11 and the positioning bolt 10, when in use, the fixing tube 11 is connected to the fixing flange 12 through the positioning bolt 10.

[0028] In this embodiment, preferably, a circular slot is opened at one end of the connecting tube 3, and a rotary joint B16 is rotatably connected to the inner wall of the circular slot; through the setting of the connecting tube 3 and the rotary joint B16, when in use, the rotary joint B16 is at one end of the connecting tube 3.

[0029] In this embodiment, preferably, one end of the inner wall of the protective shell A1 is fixedly connected to the side of the rotating joint A14, and the inner wall of the thermal insulation pad 2 is fixedly connected to the side of the fixed tube 11; through the setting of the protective shell A1 rotating joint A14, the thermal insulation pad 2 and the fixed tube 11, the connectivity between the devices is improved during use.

[0030] When a low-temperature resistant two-way rotary joint of this embodiment is in use, when the device is used for a long time or a fault occurs inside the device, the staff first rotates the connecting pipe 3, and the threaded groove in the connecting pipe 3 will be separated from the threaded pipe at one end of the fixed pipe 11. The staff removes the fixing bolts 13 on the fixing flange 12 to separate the fixing flange 12 from the fixing pipe 11, thereby realizing the disassembly of the rotary joints at both ends of the device, facilitating the staff's maintenance of the inside of the device, and ensuring that the device can continue to be used normally in a low-temperature environment. The sealing gasket 15 on the inner wall of the connecting pipe 3 can improve the tightness between the connecting pipe 3 and the fixed pipe 11 In order to ensure the safety and airtightness of the device, the staff put the protective shell A1 and the protective shell B4 on the device body. Both the protective shell A1 and the protective shell B4 are equipped with a thermal insulation pad 2, which can improve the low-temperature resistance of the device when used in a low-temperature environment. The staff put a fixing ring 5 on both ends of the protective shell, let the fixing ring 5 rotate along the rotating shaft 6 to fix the protective shell, move the rotating plate 8 on the fixing block 7 on the fixing ring 5 to the positioning plate 9, and use the positioning bolt 10 to fix the rotating plate 8 in the fixing block 7, so that the fixing ring 5 can fix the protective shell A1 and the protective shell B4, effectively protecting the device from collision and low temperature during use.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-temperature resistant two-way rotary joint, characterized by: include A protective shell A (1), wherein the inner wall of the protective shell A (1) is fixedly connected to a heat-insulating pad (2), the inner wall of the heat-insulating pad (2) is fixedly connected to a connecting pipe (3), one end of the protective shell A (1) is fixedly connected to a protective shell B (4), one end of the protective shell B (4) is fixedly connected to a fixing ring (5), the bottom of the fixing ring (5) is rotatably connected to a rotating shaft (6), the top of the fixing ring (5) is fixedly connected to a fixing block (7), the top of the fixing block (7) is rotatably connected to a rotating plate (8), one end of the rotating plate (8) is fixedly connected to a positioning plate (9), and the top of the positioning plate (9) is threadedly connected to a positioning bolt (10); The inner wall of the connecting pipe (3) is provided with a threaded groove, the inner wall of the threaded groove is threadedly connected to a fixing pipe (11), one end of the fixing pipe (11) is fixedly connected to a fixing flange (12), and the front edge of the fixing flange (12) is threadedly connected to a fixing bolt (13).

2. The low-temperature resistant two-way rotary joint according to claim 1, characterized in that: A circular slot is provided at the center of the front face of the fixed flange (12), and a rotary joint A (14) is rotatably connected to the inner wall of the circular slot.

3. The low-temperature resistant two-way rotary joint according to claim 1, characterized in that: An arc-shaped groove is formed at one end of the connecting pipe (3), and a sealing gasket (15) is fixedly connected to the inner wall of the arc-shaped groove.

4. The low-temperature resistant two-way rotary joint according to claim 1, characterized in that: A circular slot is provided on the front edge of the fixing tube (11), and the inner wall of the circular slot is threadedly connected to one end of the positioning bolt (10).

5. The low-temperature resistant two-way rotary joint according to claim 1, characterized in that: A circular slot is formed at one end of the connecting pipe (3), and a rotary joint B (16) is rotatably connected to the inner wall of the circular slot.

6. The low-temperature resistant two-way rotary joint according to claim 1, characterized in that: One end of the inner wall of the protective shell A (1) is fixedly connected to the side of the rotary joint A (14), and the inner wall of the thermal insulation pad (2) is fixedly connected to the side of the fixed pipe (11).

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