A controllable rotary joint

Abstract

This utility model relates to the field of industrial sealing, and more particularly to a controllable rotary joint, including a limiting sleeve, an insertion groove, and a connecting groove. A threaded cap is threadedly installed on the upper end of the limiting sleeve, and a retaining ring is connected through the lower end of the limiting sleeve. A threaded tube, a connecting pipe, and a rotating column are rotatably arranged within the retaining ring and the threaded cap. The connecting pipe and the threaded tube are connected in a limiting manner. A connecting groove is formed through the outer wall of the connecting pipe. An elastic component is provided between the threaded tube and the connecting pipe. An injection tube is provided through the outer wall of the limiting sleeve, and the injection tube is interconnected with the threaded tube through the connecting groove. This utility model, by placing the elastic component close to the connecting pipe and the threaded tube, and threading the cap onto the upper end of the limiting sleeve, achieves a tight fit through the counterforce of the elastic component and the threaded cap pressing the threaded installation, thus creating a sealing condition and ensuring the stability and safety of equipment operation.

Description

Technical Field

[0001] This utility model belongs to the field of industrial sealing, and specifically relates to a controllable rotary joint. Background Technology

[0002] Rotary joints, through a precisely designed sealing structure, allow rotating components (such as shafts and rollers) to rotate continuously 360° with stationary pipes or equipment, while ensuring leak-free transmission of media (such as steam, water, hydraulic oil, compressed air, etc.).

[0003] In the present technology, rotary joints may have sealing problems during use. Liquids and gases can easily leak out from the gaps in the joint. Such leakage not only causes unnecessary waste of raw materials and energy, but also may lead to unstable equipment operation and safety accidents due to loose component connections and lack of effective sealing during operation.

[0004] Therefore, existing rotary joints suffer from insufficient sealing, poor operational stability, and inadequate safety during use. Utility Model Content

[0005] To overcome the problems of insufficient sealing, poor operational stability and safety of existing rotary joints during use, a controllable rotary joint is proposed.

[0006] The technical solution of this utility model is as follows: a controllable rotary joint, including a limiting sleeve, an insertion groove and a connecting groove. A threaded cap is threadedly installed on the upper end of the limiting sleeve, and a fixing ring is connected through the lower end of the limiting sleeve. A threaded tube, a connecting pipe and a rotating column are rotatably arranged inside the threaded cap and the fixing ring. The connecting pipe and the threaded tube are limitedly connected. A connecting groove is opened through the outer wall of the connecting pipe. An elastic component is arranged between the threaded tube and the connecting pipe. An injection tube is rotatably arranged through the outer wall of the limiting sleeve. The injection tube is interconnected with the threaded tube through the connecting groove. A first bearing and a second bearing are rotatably arranged on the inner wall of the limiting sleeve. The first bearing and the second bearing are respectively arranged on the outer walls of the threaded tube and the connecting pipe.

[0007] Preferably, a first sealing disc is placed against the upper end of the inner wall of the threaded cover, the upper end of the first sealing disc is fixedly connected to the threaded tube, and a flow groove is opened through the upper and lower ends of the threaded cover, with the inner wall of the flow groove and the outer wall of the rotating column in contact.

[0008] Preferably, the inner wall of the fixed ring and the outer wall of the rotating column are fitted together, and the outer wall of the rotating column is fitted with two second sealing rings, the outer wall of the second sealing rings being tightly fitted with the inner wall of the fixed ring.

[0009] Preferably, a threaded column is fixedly connected to the lower end of the rotating column, and the lower end of the rotating column and the upper end of the threaded column are connected to each other; the lower end of the connecting pipe is connected to the upper end of the rotating column.

[0010] Preferably, two plugs are fixed to the upper end of the connecting pipe, and two insertion slots are opened at the lower end of the threaded pipe, with the insertion slots and plugs being compatible.

[0011] Preferably, a second sealing disc is fitted to the lower end of the limiting sleeve, the inner wall of the second sealing disc and the outer wall of the connecting pipe are fixedly connected to each other, a third sealing ring is fitted on the outer wall of the second sealing disc, the third sealing ring and the inner wall of the limiting sleeve are tightly fitted, and a first sealing ring is fitted on the outer wall of the first sealing disc, the outer wall of the first sealing ring and the inner wall of the limiting sleeve are tightly fitted.

[0012] Preferably, the elastic component includes a spring and a connecting ring; the lower end of the first bearing and the upper end of the second bearing are both provided with connecting rings, and the two connecting rings are connected by the spring.

[0013] The beneficial effects of this utility model are as follows: by placing the elastic component close to the connecting pipe and the threaded pipe, and by threading the threaded cap onto the upper end of the limiting sleeve, the reverse force of the elastic component plus the threaded cap driving the threaded installation and pressing, a tight fit is formed, thereby creating a sealing condition and ensuring the stability and safety of the equipment operation. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is a cross-sectional perspective view of the present invention.

[0016] Figure 3 The diagram shown is a three-dimensional disassembled structural schematic of this utility model;

[0017] Figure 4 The diagram shown is a three-dimensional disassembled structural schematic of this utility model;

[0018] Figure 5 This utility model is shown. Figure 2 A magnified three-dimensional structural diagram of point A;

[0019] Figure 6 The diagram shown is a three-dimensional structural schematic of the elastic component of this utility model.

[0020] The markings in the attached diagram are as follows: 1. Limiting sleeve; 101. Injection pipe; 102. Threaded cap; 103. Flow groove; 104. Fixing ring; 2. Threaded pipe; 201. First sealing disc; 202. First sealing ring; 203. First bearing; 204. Insertion groove; 3. Rotating column; 301. Second sealing ring; 302. Second sealing disc; 303. Third sealing ring; 304. Second bearing; 305. Connecting pipe; 306. Insert block; 307. Threaded column; 308. Connecting groove; 4. Spring; 401. Connecting ring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-6 This utility model provides an embodiment: a controllable rotary joint, including a limiting sleeve 1, an insertion groove 204, and a connecting groove 308. A threaded cap 102 is threadedly installed on the upper end of the limiting sleeve 1, and a fixing ring 104 is connected through the lower end of the limiting sleeve 1. A threaded tube 2, a connecting pipe 305, and a rotating column 3 are rotatably disposed within the threaded cap 102 and the fixing ring 104. The connecting pipe 305 and the threaded tube 2 are connected in a limiting manner. A connecting groove 308 is formed through the outer wall of the connecting pipe 305. An elastic component is disposed between the threaded tube 2 and the connecting pipe 305. An injection pipe 101 is formed through the outer wall of the limiting sleeve 1. 101 is interconnected with the threaded pipe 2 through the connecting groove 308. The inner wall of the limiting sleeve 1 is rotatably provided with a first bearing 203 and a second bearing 304. The first bearing 203 and the second bearing 304 are respectively located on the outer wall of the threaded pipe 2 and the connecting pipe 305. During the installation of the rotary joint, the elastic component is placed at a position close to the connecting pipe 305 and the threaded pipe 2. The threaded cover 102 is threaded onto the upper end of the limiting sleeve 1. The reverse force of the elastic component plus the threaded cover 102 drives the threaded installation to press, so as to form a tight fit, thereby forming a sealing condition and ensuring the stability and safety of the equipment operation.

[0023] Please see Figures 1-3In this embodiment, a first sealing disc 201 is placed against the upper end of the inner wall of the threaded cover 102. The upper end of the first sealing disc 201 is fixedly connected to the threaded tube 2. A flow groove 103 is provided through the upper and lower ends of the threaded cover 102. The inner wall of the flow groove 103 is against the outer wall of the rotating column 3. The inner wall of the fixing ring 104 is against the outer wall of the rotating column 3. Two second sealing rings 301 are sleeved on the outer wall of the rotating column 3. The outer wall of the second sealing ring 301 is tightly fitted with the inner wall of the fixing ring 104. The rotating column 3 forms a two-layer sealing structure through the second sealing rings 301 and the inner wall of the fixing ring 104, which improves the internal sealing performance of the device. A threaded column 307 is fixedly connected to the lower end of the rotating column 3. The lower end of the rotating column 3 and the upper end of the threaded column 307 are connected to each other. The lower end of the connecting pipe 305 is connected to the upper end of the rotating column 3.

[0024] Please see Figures 4-6 In this embodiment, two insert blocks 306 are fixedly connected to the upper end of the connecting pipe 305, and two insertion slots 204 are opened at the lower end of the threaded pipe 2. The insertion slots 204 and the insert blocks 306 are adapted to each other. By inserting the threaded pipe 2 along the insert blocks 306 on the connecting pipe 305 through the insertion slots 204 on the threaded pipe 2, the threaded pipe 2 on the connecting pipe 305 can be rotated when the threaded post 307 rotates. The lower end of the limiting sleeve 1 is fitted with a second sealing disc 302. The inner wall of the second sealing disc 302 and the outer wall of the connecting pipe 305 are fixedly connected to each other. A third sealing ring 303 is fitted on the outer wall of the second sealing disc 302. The third sealing ring 303 and the inner wall of the limiting sleeve 1 are tightly fitted. The outer wall of the sealing disc 201 is fitted with a first sealing ring 202. The outer wall of the first sealing ring 202 and the inner wall of the limiting sleeve 1 are tightly fitted. The third sealing ring 303 and the first sealing ring 202 can prevent liquid and gas from flowing out through the gap between the first sealing disc 201 and the second sealing disc 302. The elastic component includes a spring 4 and a connecting ring 401. The lower end of the first bearing 203 and the upper end of the second bearing 304 are both provided with connecting rings 401. The two connecting rings 401 are connected by the spring 4. The two connecting rings 401 are installed by the spring 4 being pressed by the threaded cap 102, so that the two connecting rings 401 improve the overall sealing of the device by acting in opposite directions.

[0025] First, two second sealing rings 301 are fitted onto the outer wall of the rotating column 3. Then, the rotating column 3 is inserted from the upper end of the limiting sleeve 1, so that the outer wall of the rotating column 3 fits against the inner wall of the fixing ring 104, and the lower end of the second sealing disc 302 fits against the lower end of the inner wall of the limiting sleeve 1. The third sealing ring 303 is used for sealing. Next, the second bearing 304 is slidably inserted along the connecting pipe 305. Then, the connecting ring 401 is placed on the upper end of the second bearing 304, and the first bearing 203 is pressed on the upper part of the upper connecting ring 401. Finally, the insertion groove below the threaded pipe 2 is inserted... Insert 204 into the insert block 306 on the connecting pipe 305, then put the threaded cap 102 into the upper end of the limiting sleeve 1 for threaded installation. During use, connect the threaded post 307 to the power transmission device, connect the threaded pipe 2 and the working output part by thread, and then connect the injection pipe 101 to the water source or air source. Drive the threaded post 307 to rotate through the power device. While keeping the position of the output pipe connected to the injection pipe 101 on the outer wall of the limiting sleeve 1 unchanged, make the working part on the threaded pipe 2 carry the output source on the injection pipe 101 to work.

Claims

1. A controllable position rotary joint comprising a limited position casing (1), characterized in that: It also includes an insertion slot (204) and a connecting slot (308). A threaded cap (102) is threaded onto the upper end of the limiting sleeve (1). A retaining ring (104) is connected through the lower end of the limiting sleeve (1). A threaded pipe (2), a connecting pipe (305), and a rotating column (3) are rotatably arranged inside the threaded cap (102) and the retaining ring (104). The connecting pipe (305) and the threaded pipe (2) are connected in a limiting manner. A connecting slot (308) is opened through the outer wall of the connecting pipe (305). An elastic component is provided between the threaded pipe (2) and the connecting pipe (305). An injection pipe (101) is provided through the outer wall of the limiting sleeve (1). The injection pipe (101) is connected to the threaded pipe (2) through the connecting groove (308). A first bearing (203) and a second bearing (304) are rotatably provided on the inner wall of the limiting sleeve (1). The first bearing (203) and the second bearing (304) are respectively provided on the outer walls of the threaded pipe (2) and the connecting pipe (305).

2. A controllable degree of rotation joint according to claim 1, characterized in that: The upper end of the inner wall of the threaded cap (102) is fitted with a first sealing disc (201). The upper end of the first sealing disc (201) is fixedly connected to the threaded tube (2). The upper and lower ends of the threaded cap (102) are provided with a flow groove (103). The inner wall of the flow groove (103) is fitted with the outer wall of the rotating column (3).

3. A controllable degree of freedom rotary joint according to claim 1, characterized in that: The inner wall of the fixed ring (104) and the outer wall of the rotating column (3) are in close contact with each other. Two second sealing rings (301) are fitted on the outer wall of the rotating column (3). The outer wall of the second sealing ring (301) and the inner wall of the fixed ring (104) are in close contact.

4. A controllable degree of rotation joint according to claim 1, characterized in that: The lower end of the rotating column (3) is fixedly connected to a threaded column (307), and the lower end of the rotating column (3) and the upper end of the threaded column (307) are connected to each other; the lower end of the connecting pipe (305) and the upper end of the rotating column (3) are connected to each other.

5. A controllable degree of freedom rotary union according to claim 1, wherein: Two plugs (306) are fixed to the upper end of the connecting pipe (305), and two insertion slots (204) are opened at the lower end of the threaded pipe (2). The insertion slots (204) and the plugs (306) are compatible.

6. A controllable rotary joint according to claim 1, characterized in that: The lower end of the limiting sleeve (1) is fitted with a second sealing disc (302). The inner wall of the second sealing disc (302) and the outer wall of the connecting pipe (305) are fixed to each other. The outer wall of the second sealing disc (302) is fitted with a third sealing ring (303). The third sealing ring (303) and the inner wall of the limiting sleeve (1) are tightly fitted. The outer wall of the first sealing disc (201) is fitted with a first sealing ring (202). The outer wall of the first sealing ring (202) and the inner wall of the limiting sleeve (1) are tightly fitted.

7. A controllable rotary joint according to claim 1, characterized in that: The elastic component includes a spring (4) and a connecting ring (401); the lower end of the first bearing (203) and the upper end of the second bearing (304) are both provided with connecting rings (401), and the two connecting rings (401) are connected by the spring (4).

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