Rotary joint with long service life

Abstract

The utility model discloses a rotary joint with long service life, which relates to the technical field of rotary joints and comprises a shell, a connecting pipe is fixedly arranged on the outer surface of the shell, a fixing frame is fixedly arranged on the outer surface of the connecting pipe, an L-shaped plate is arranged in the fixing frame in a sliding manner, an inserting rod is fixedly arranged on one side of the L-shaped plate, and the inserting rod is fixedly connected with the connecting pipe. A fixing ring is placed in the connecting pipe, a second sealing ring is fixedly arranged on the outer surface of the fixing ring, a filter screen is fixedly arranged in the fixing ring, the inserting rod is movably inserted in the fixing ring, a cam can make contact with an L-shaped plate by rotating a rotating rod, then the fixing ring is placed in the connecting pipe, and the connecting pipe is inserted into the connecting pipe. The second sealing ring is attached to the inner wall of the connecting pipe, the rotating rod is rotated again, then the inserting rod can be inserted into the fixing ring, the filter screen can be conveniently installed, and therefore in the water conveying process, impurities cannot enter the shell and are prevented from being attached to the inner wall of the conveying pipeline, and the internal flowing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary joints, in particular to a long-life 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 transmit various media such as gas, liquid, and oil. It has a compact design structure and uses flange connection to effectively integrate into customer equipment.

[0003] However, in the process of conveying water, the existing rotary joint has no filtering device, so impurities enter the interior of the rotary joint and adhere to the inner wall of the rotary joint, reducing the internal flow efficiency. In addition, during the operation of the rotary joint, high temperature is generated inside. Long-term high temperature can easily cause damage to the internal structure and shorten the service life of the rotary joint. In view of the above problems, the inventor proposes a long-life rotary joint to solve the above problems. Utility Model Content

[0004] In order to solve the problem that there is no filtering device in the rotary joint, impurities enter the interior of the rotary joint and reduce the internal flow efficiency; the purpose of the utility model is to provide a long-life rotary joint.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a long-life rotary joint, comprising a shell, a connecting pipe is fixedly provided on the outer surface of the shell, a fixing frame is fixedly provided on the outer surface of the connecting pipe, an L-shaped plate is slidably provided in the fixing frame, a plug rod is fixedly provided on one side of the L-shaped plate, a fixing ring is placed in the connecting pipe, a second sealing ring is fixedly provided on the outer surface of the fixing ring, a filter screen is fixedly provided in the fixing ring, the plug rod is movably inserted in the fixing ring, a rotating rod is rotatably connected in the connecting pipe, a cam is fixedly sleeved on the outer surface of the rotating rod, a second spring is fixedly connected between the L-shaped plate and the connecting pipe, firstly, by rotating the rotating rod, the cam can contact the L-shaped plate, so that the L-shaped plate slides in the fixing frame, and the second spring is stretched at the same time, and then the fixing ring is placed in the connecting pipe, so that the second sealing ring is attached to the inner wall of the connecting pipe, and the rotating rod is rotated again to separate the cam from the L-shaped plate, so that the plug rod can be inserted in the fixing ring, so that it is convenient to install the filter screen, so that during the water conveying process, impurities will not enter the shell, and impurities are prevented from adhering to the inner wall of the conveying channel, thereby improving the internal flow efficiency;

[0006] Connect the water delivery pipe to the connecting pipe, and then transport the water from the delivery channel to the storage tank, and then to the rotating head, and then to the pipe connected to the rotating head. Connect the water inlet pipe through an external water pipe, so that cooling water can enter the heat dissipation tank, and the heat absorption plate can absorb the heat generated by the rotation of the rotating head. Then the cooling water cools the heat absorption plate, and the solenoid valve on the outer surface of the water outlet pipe is opened so that the water can flow out for replacement, and then after long-term use, the high temperature generated inside is cooled down to avoid damage to the internal structure and increase the service life of the device.

[0007] Preferably, a heat dissipation groove is provided in the shell, a heat absorbing plate is fixedly provided in the heat dissipation groove, and a water inlet pipe and a water outlet pipe are fixedly provided on the outer surface of the shell.

[0008] Preferably, a rotating head is installed in the outer shell, and a first retaining ring is fixedly provided on the outer surface of the rotating head, a bearing is placed on the top of the first retaining ring, the bearing is sleeved on the outer surface of the rotating head, and a second retaining ring is movably sleeved on the outer surface of the rotating head, and the second retaining ring is attached to the top surface of the bearing, a first spring is placed in the outer shell, a spring pad is placed on the top of the first spring, a first sealing ring is placed on the top surface of the spring pad, and the first sealing ring is attached to the bottom end of the rotating head, a conveying channel is opened in the outer shell, the conveying channel and the connecting pipe are interconnected, and a storage groove is opened in the outer shell.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, the cam can contact the L-shaped plate by rotating the rotating rod, and then the fixing ring is placed in the connecting pipe, so that the second sealing ring is attached to the inner wall of the connecting pipe, and the rotating rod is rotated again, so that the insertion rod can be inserted into the fixing ring, so that the filter screen can be installed easily, so that during the water delivery process, impurities will not enter the housing, and impurities are prevented from adhering to the inner wall of the delivery pipe, thereby improving the internal flow efficiency;

[0011] 2. In the utility model, the water inlet pipe is connected through an external water pipe, so that cooling water can enter the heat dissipation groove, the heat absorbing plate can absorb the heat generated by the rotation of the rotating head, and then the cooling water cools the heat absorbing plate, and the solenoid valve on the outer surface of the water outlet pipe is opened, so that the water can flow out for replacement, and then after long-term use, the high temperature generated inside is cooled down to avoid damage to the internal structure and improve the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0014] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the housing of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the housing of the utility model;

[0016] Figure 4 This is a schematic diagram of the connecting pipe structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the fixing ring structure of the utility model.

[0018] In the figure: 1. shell; 101. conveying channel; 102. storage tank; 103. heat dissipation tank; 11. first spring; 12. spring pad; 13. first sealing ring; 14. heat absorbing plate; 15. water inlet pipe; 16. water outlet pipe; 2. rotating head; 21. first clamping ring; 22. bearing; 23. second clamping ring; 3. connecting pipe; 31. fixing frame; 32. L-shaped plate; 33. second spring; 34. plug rod; 35. rotating rod; 36. cam; 37. fixing ring; 38. second sealing ring; 39. filter screen. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-5As shown, the utility model provides a long-life rotary joint, including a shell 1, a connecting pipe 3 is fixedly arranged on the outer surface of the shell 1, a fixing frame 31 is fixedly arranged on the outer surface of the connecting pipe 3, an L-shaped plate 32 is slidably arranged in the fixing frame 31, an insert rod 34 is fixedly arranged on one side of the L-shaped plate 32, a fixing ring 37 is placed in the connecting pipe 3, a second sealing ring 38 is fixedly arranged on the outer surface of the fixing ring 37, a filter screen 39 is fixedly arranged in the fixing ring 37, the insert rod 34 is movably inserted in the fixing ring 37, a rotating rod 35 is rotatably connected in the connecting pipe 3, a cam 36 is fixedly arranged on the outer surface of the rotating rod 35, and the L-shaped plate 32 and the connecting pipe 3 are connected. A second spring 33 is fixedly connected thereto, and by rotating the rotating rod 35, the cam 36 can contact the L-shaped plate 32, so that the L-shaped plate 32 slides in the fixing frame 31, and at the same time, the second spring 33 is stretched, and then the fixing ring 37 is put into the connecting pipe 3, so that the second sealing ring 38 fits against the inner wall of the connecting pipe 3, and the rotating rod 35 is rotated again to make the cam 36 disengage from the L-shaped plate 32, so that the insertion rod 34 can be inserted into the fixing ring 37, and then the filter screen 39 can be installed easily, so that during the water conveying process, impurities will not enter the housing 1, and impurities can be prevented from adhering to the inner wall of the conveying channel 101, thereby improving the internal flow efficiency.

[0021] A heat dissipation groove 103 is provided in the housing 1 , a heat absorbing plate 14 is fixedly provided in the heat dissipation groove 103 , and a water inlet pipe 15 and a water outlet pipe 16 are fixedly provided on the outer surface of the housing 1 .

[0022] By adopting the above technical solution, the water inlet pipe 15 is connected through an external water pipe, so that cooling water can enter the heat dissipation groove 103, and the heat absorbing plate 14 can absorb the heat generated by the rotation of the rotating head 2. Then the cooling water cools the heat absorbing plate 14, and the solenoid valve on the outer surface of the water outlet pipe 16 is opened, so that the water can flow out for replacement. Then, after long-term use, the high temperature generated inside is cooled down to avoid damage to the internal structure, thereby increasing the service life of the device.

[0023] A rotating head 2 is installed in the outer shell 1. A first retaining ring 21 is fixedly provided on the outer surface of the rotating head 2. A bearing 22 is placed on the top of the first retaining ring 21. The bearing 22 is sleeved on the outer surface of the rotating head 2. A second retaining ring 23 is movably sleeved on the outer surface of the rotating head 2. The second retaining ring 23 is attached to the top surface of the bearing 22. A first spring 11 is placed in the outer shell 1. A spring pad 12 is placed on the top of the first spring 11. A first sealing ring 13 is placed on the top surface of the spring pad 12. The first sealing ring 13 is attached to the bottom end of the rotating head 2. A conveying channel 101 is opened in the outer shell 1. The conveying channel 101 and the connecting pipe 3 are mutually connected. A storage groove 102 is opened in the outer shell 1.

[0024] By adopting the above technical solution, the first spring 11 is set, so that the first sealing ring 13 can fit the bottom end of the rotating head 2, thereby improving the seal between the outer shell 1 and the rotating head 2, and the second clamping ring 23 can be clamped in the outer shell 1, and the bearing 22 is clamped between the first clamping ring 21 and the second clamping ring 23, so that the rotating head 2 can be easily installed, the water pipe is connected to the connecting pipe 3, and then the water is transported from the delivery channel 101 to the storage tank 102, and then can be transported to the rotating head 2, and then can be transported to the pipeline connected to the rotating head 2.

[0025] Working principle: First, by rotating the rotating rod 35, the cam 36 can contact the L-shaped plate 32, so that the L-shaped plate 32 slides in the fixing frame 31, and the second spring 33 is stretched at the same time, and then the fixing ring 37 is put into the connecting pipe 3, so that the second sealing ring 38 fits the inner wall of the connecting pipe 3, and the rotating rod 35 is rotated again to make the cam 36 separate from the L-shaped plate 32, so that the insertion rod 34 can be inserted into the fixing ring 37, so that the filter screen 39 can be installed easily, so that during the water conveying process, impurities will not enter the housing 1, and impurities are prevented from adhering to the inner wall of the conveying channel 101, thereby improving the internal flow efficiency;

[0026] The water delivery pipe is connected to the connecting pipe 3, and then the water is transported from the delivery channel 101 to the storage tank 102, and then it can be transported to the rotating head 2, and then it can be transported to the pipeline connected to the rotating head 2, and the water inlet pipe 15 is connected through an external water pipe, so that the cooling water can enter the heat dissipation tank 103, the heat absorption plate 14 can absorb the heat generated by the rotation of the rotating head 2, and then the cooling water cools the heat absorption plate 14, and the solenoid valve on the outer surface of the water outlet pipe 16 is opened, so that the water can flow out for replacement, and then after long-term use, the high temperature generated inside is cooled down to avoid damage to the internal structure and improve the service life of the device.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A long-life rotary joint, comprising a housing (1), characterized in that: A connecting pipe (3) is fixedly provided on the outer surface of the housing (1), a fixing frame (31) is fixedly provided on the outer surface of the connecting pipe (3), an L-shaped plate (32) is slidably provided inside the fixing frame (31), an insertion rod (34) is fixedly provided on one side of the L-shaped plate (32), a fixing ring (37) is placed inside the connecting pipe (3), a second sealing ring (38) is fixedly provided on the outer surface of the fixing ring (37), a filter screen (39) is fixedly provided inside the fixing ring (37), and the insertion rod (34) is movably inserted into the fixing ring (37).

2. A long-life rotary joint as claimed in claim 1, characterized in that: A rotating rod (35) is rotatably connected inside the connecting tube (3), and a cam (36) is fixedly sleeved on the outer surface of the rotating rod (35).

3. A long-life rotary joint as claimed in claim 1, characterized in that: A second spring (33) is fixedly connected between the L-shaped plate (32) and the connecting pipe (3).

4. A long-life rotary joint as claimed in claim 1, characterized in that: A heat dissipation groove (103) is provided in the outer shell (1), a heat absorption plate (14) is fixedly provided in the heat dissipation groove (103), and a water inlet pipe (15) and a water outlet pipe (16) are fixedly provided on the outer surface of the outer shell (1).

5. A long-life rotary joint as claimed in claim 1, characterized in that: A rotating head (2) is installed in the housing (1); a first retaining ring (21) is fixedly provided on the outer surface of the rotating head (2); a bearing (22) is placed on the top end of the first retaining ring (21); and the bearing (22) is sleeved on the outer surface of the rotating head (2).

6. A long-life rotary joint as claimed in claim 5, characterized in that: A second retaining ring (23) is movably sleeved on the outer surface of the rotating head (2), and the second retaining ring (23) is fitted on the top surface of the bearing (22).

7. A long-life rotary joint as claimed in claim 5, characterized in that: A first spring (11) is placed in the housing (1), a spring pad (12) is placed on the top of the first spring (11), a first sealing ring (13) is placed on the top surface of the spring pad (12), and the first sealing ring (13) is attached to the bottom end of the rotating head (2).

8. A long-life rotary joint as claimed in claim 1, characterized in that: The housing (1) A conveying channel (101) is provided inside, and the conveying channel (101) and the connecting pipe (3) are interconnected. A storage tank (102) is provided in the housing (1).

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