Multi-channel rotary joint

Abstract

The utility model discloses a multichannel rotary joint relates to rotary joint technical field, including inner diameter pipe, the outer wall of inner diameter pipe close to one end is fixedly connected with locating plate, the outer wall of connecting hole is rotatingly connected with a plurality of first metal sleeve respectively through sliding sleeve stopper, and the first metal sleeve is located the both ends of inner diameter pipe outer wall, and the outer wall of inner diameter pipe close to one end is fixedly connected with the locating plate. A plurality of flow direction limiters are fixedly connected to the interior of the inner diameter pipe. The flow direction limiter is fixed in the limiting cavity, when liquid impacts the limiting plug, the limiting plug compresses the abutting spring through the spring positioner, the limiting plug moves towards one end of the abutting device in the flow direction limiter, and therefore the device controls the flowing direction of the liquid through the flow direction limiter. And hydraulic impact and liquid backflow are effectively prevented, so that stable flowing of a transmission medium is ensured, the situation that when the device is used, due to liquid backflow, the internal pressure of the device is too high, liquid leakage is generated, and internal liquid pollution is caused is avoided, and the reliability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary joints, in particular to a multi-channel rotary joint. Background Art

[0002] Multi-channel rotary joint is a kind of joint that can choose the connection mode according to the working conditions, and the transmission medium inlet can be freely selected according to the working conditions. Multi-channel rotary joint is a kind of joint that can choose the connection mode according to the working conditions, and the transmission medium inlet can be freely selected according to the working conditions. It is mainly divided into single-circuit and double-circuit. The joint has two precision bearings, long-lasting operation, smooth connection, strong wear resistance, small friction coefficient, and can operate at high speed.

[0003] Currently, the liquid passages inside existing rotary joints are usually not equipped with additional devices to ensure smooth flow of the internal fluid when the existing devices are in use. However, since the existing devices cannot control the flow direction of the internal liquid, once liquid reflux occurs in the device using this method and the internal pressure of the device is too high, it will affect the degree of direct connection between the internal components of the device, resulting in a decrease in the sealing of the equipment and causing the transmission medium to be contaminated by the external environment. Utility Model Content

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a multi-channel rotary joint.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-channel rotary joint, comprising an inner diameter tube, a positioning plate fixedly connected to the outer wall of the inner diameter tube near one end, and a plurality of positioning holes are respectively opened at the edge of the outer wall of the positioning plate, a plurality of connecting holes are respectively opened on the outer wall of one end of the inner diameter tube, and a plurality of sliding sleeve limiters are respectively fixedly connected to the outer wall of the inner diameter tube, the outer walls of the connecting holes are rotatably connected to a plurality of first metal sleeves through the sliding sleeve limiters, and the first metal sleeves are located at both ends of the outer wall of the inner diameter tube, and a plurality of flow direction limiters are respectively fixedly connected to the inside of the inner diameter tube.

[0006] As mentioned above, the outer wall of the inner diameter tube is respectively provided with a plurality of fluid grooves, and a limit cavity is simultaneously provided inside the inner diameter tube, a connecting groove is provided between the fluid groove and the connecting hole, and the connecting hole, the fluid groove and the connecting groove are interconnected, and the inner wall of the limit cavity is fixedly connected to the outer wall of the flow limiter.

[0007] As mentioned above, a sealing gasket is fixedly connected between the sliding sleeve limiters, and a plurality of second metal sleeves are rotatably connected to the center of the outer wall of the inner diameter tube through the sliding sleeve limiter and the sealing gasket.

[0008] As mentioned above, one side of the outer wall of the second metal sleeve and the first metal sleeve is provided with a connecting sleeve hole, and the bottom end of the connecting sleeve hole is communicated with the fluid groove.

[0009] As mentioned above, one end of the flow direction limiter is fixedly connected to a plug, and a water inlet is opened in the center of the outer wall of one side of the plug, a blocking slope is opened on the outer wall of one side of the plug, and a resistor is fixedly connected to one end of the flow direction limiter away from the plug.

[0010] As mentioned above, a resistance spring is fixedly connected to one side of the interior of the resister, and a fluid slope is provided on one side of the outer wall of the resister.

[0011] As mentioned above, the resistance spring is fixedly connected to a spring locator at one end away from the resistance device, and the resistance spring is located on one side inside the spring locator. The outer wall of the spring locator on one side away from the resistance spring is fixedly connected to a limiting plug, and the outer wall of one side of the limiting plug corresponds to the water inlet.

[0012] Compared with the prior art, this multi-channel rotary joint has the following beneficial effects:

[0013] 1. The utility model fixes a plurality of connection holes on the outer wall of one end of the inner diameter tube to the water inlet pipe of the external device, and simultaneously connects the connection sleeve hole to the external water outlet pipe. By opening a connecting groove inside the inner diameter tube and interconnecting it with the connection hole, the fluid groove, the limit cavity and the connecting sleeve hole, the device can ensure that no leakage or pressure loss occurs during rotation, thereby effectively avoiding the transmission medium from being contaminated by the outside due to the loose connection of the internal parts of the device during operation.

[0014] 2. The utility model fixes the flow direction limiter inside the limit cavity. When the liquid impacts the limit plug, the spring positioner compresses the resistance spring and causes the limit plug to move toward one end of the resistance inside the flow direction limiter, so that the liquid passes through the gap between the limit plug and the resistance and flows to the external water outlet pipe. When the liquid stops flowing, the limit plug is pushed to one end of the plug by the resistance spring, so that the water flow cannot flow back from the flow direction limiter to the water inlet pipe, so that the device controls the flow direction of the liquid through the flow direction limiter, effectively preventing hydraulic impact and liquid backflow, so as to ensure the stable flow of the transmission medium and avoid liquid backflow when the device is in use.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of an inner diameter tube of the utility model;

[0019] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the flow direction limiter of the utility model.

[0020] In the figure: 1. inner diameter tube; 101. connecting hole; 102. sliding sleeve limiter; 103. first metal sleeve; 104. fluid groove; 105. limiting cavity; 106. connecting groove; 107. sealing gasket; 108. second metal sleeve; 109. connecting sleeve hole; 2. positioning plate; 201. positioning hole; 3. flow direction limiter; 301. plugger; 302. water inlet; 303. plugging slope; 304. resistor; 305. resistance spring; 306. fluid slope; 307. spring positioner; 308. limiting plug. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-4 As shown, the utility model provides a technical solution for a multi-channel rotary joint: a multi-channel rotary joint, comprising an inner diameter tube 1, a positioning plate 2 is fixedly connected to the outer wall of the inner diameter tube 1 near one end, and a plurality of positioning holes 201 are respectively opened at the edge of the outer wall of the positioning plate 2, a plurality of connecting holes 101 are respectively opened on the outer wall of one end of the inner diameter tube 1, and a plurality of sliding sleeve limiters 102 are respectively fixedly connected to the outer wall of the inner diameter tube 1, the outer walls of the connecting holes 101 are rotatably connected to a plurality of first metal sleeves 103 through the sliding sleeve limiters 102, and the first metal sleeves 103 are located at both ends of the outer wall of the inner diameter tube 1, and a plurality of flow direction limiters 3 are respectively fixedly connected inside the inner diameter tube 1.

[0023] The multiple connection holes 101 on the outer wall of one end of the inner diameter tube 1 are fixed to the water inlet pipe of the external device, and the connection sleeve hole 109 is connected to the external water outlet pipe at the same time, by opening a connecting groove 106 inside the inner diameter tube 1, and connecting it with the connecting hole 101, the fluid groove 104, the limiting cavity 105 and the connecting sleeve hole 109, by fixing the flow direction limiter 3 inside the limiting cavity 105, when the liquid impacts the limiting plug 308, it compresses the resistance spring 305 through the spring positioner 307, and the limiting plug 308 moves to one end of the resistance 304 inside the flow direction limiter 3, so that The liquid flows to the external water outlet pipe through the gap between the limit plug 308 and the resistor 304. When the liquid stops flowing, the limit plug 308 is pushed to one end of the plug 301 by the resistor spring 305, so that the water cannot flow back to the water inlet pipe from the inside of the flow limiter 3, so that the device controls the flow direction of the liquid through the flow limiter 3, effectively preventing hydraulic shock and liquid backflow, so as to ensure the stable flow of the transmission medium, avoid excessive internal pressure of the device due to liquid backflow during use, and cause liquid leakage, resulting in internal liquid pollution, and further increase the reliability of the device.

[0024] like Figure 1-3 As shown, the outer wall of the inner diameter tube 1 is respectively provided with a plurality of fluid grooves 104, and a limit cavity 105 is simultaneously provided inside the inner diameter tube 1, a connecting groove 106 is provided between the fluid groove 104 and the connecting hole 101, and the connecting hole 101, the fluid groove 104 and the connecting groove 106 are interconnected, the inner wall of the limit cavity 105 is fixedly connected to the outer wall of the flow direction limiter 3, a sealing gasket 107 is fixedly connected between the sliding sleeve limiter 102, a plurality of second metal sleeves 108 are rotatably connected to the center of the outer wall of the inner diameter tube 1 through the sliding sleeve limiter 102 and the sealing gasket 107, a connecting sleeve hole 109 is provided on one side of the outer wall of the second metal sleeve 108 and the first metal sleeve 103, and the bottom end of the connecting sleeve hole 109 and the fluid groove 104 are interconnected.

[0025] The multiple connecting holes 101 on the outer wall of one end of the inner diameter tube 1 are fixed to the water inlet pipe of the external device, and the connecting sleeve hole 109 is connected to the external water outlet pipe at the same time. By opening a connecting groove 106 inside the inner diameter tube 1 and connecting it with the connecting hole 101, the fluid groove 104, the limiting cavity 105 and the connecting sleeve hole 109, the device can ensure that there will be no leakage or pressure loss during rotation, thereby effectively avoiding the transmission medium from being contaminated by the outside due to the loose connection of the internal components of the device during operation.

[0026] like Figure 1 , Figure 2 and Figure 4As shown, a plug 301 is fixedly connected to one end of the flow limiter 3, and a water inlet 302 is provided in the center of the outer wall of one side of the plug 301, and a blocking slope 303 is provided on the outer wall of one side of the plug 301, and a resistor 304 is fixedly connected to the end of the flow limiter 3 away from the plug 301, a resistor 305 is fixedly connected to one side of the inner part of the resistor 304, and a fluid slope 306 is provided on one side of the outer wall of the resistor 304, a spring locator 307 is fixedly connected to the end of the resistor 305 away from the resistor 304, and the resistor 305 is located on one side of the inner part of the spring locator 307, and a limiting plug 308 is fixedly connected to the outer wall of the spring locator 307 away from the resistance spring 305, and the outer wall of one side of the limiting plug 308 corresponds to the water inlet 302.

[0027] By fixing the flow direction limiter 3 inside the limit cavity 105, when the liquid impacts the limit plug 308, the spring positioner 307 compresses the resistance spring 305, and the limit plug 308 moves toward one end of the resistance 304 inside the flow direction limiter 3, so that the liquid passes through the gap between the limit plug 308 and the resistance 304 and flows to the external water outlet pipe. When the liquid stops flowing, the limit plug 308 is pushed to one end of the plug 301 by the resistance spring 305, so that the water flow cannot flow back from the flow direction limiter 3 to the water inlet pipe, so that the device controls the flow direction of the liquid through the flow direction limiter 3, effectively preventing hydraulic impact and liquid backflow, so as to ensure the stable flow of the transmission medium, avoid excessive internal pressure of the device due to liquid backflow when the device is in use, and cause liquid leakage, resulting in internal liquid pollution, and further increase the reliability of the device.

[0028] Working principle: The multiple connection holes 101 on the outer wall of one end of the inner diameter tube 1 are fixed to the water inlet pipe of the external device, and the connection sleeve hole 109 is connected to the external water outlet pipe at the same time. A connecting groove 106 is opened inside the inner diameter tube 1, and it is connected with the connection hole 101, the fluid groove 104, the limit cavity 105 and the connection sleeve hole 109. The flow is fixed to the limiter 3 in the limit cavity 105. When the liquid impacts the limit plug 308, it passes through the spring positioner 3 07 compresses the resistance spring 305 and moves the limiting plug 308 toward one end of the resistance 304 inside the flow limiter 3, so that the liquid passes through the gap between the limiting plug 308 and the resistance 304 and flows to the external water outlet pipe. When the liquid stops flowing, the limiting plug 308 is pushed to one end of the plug 301 by the resistance spring 305, so that the water flow cannot flow back from the inside of the flow limiter 3 to the water inlet pipe, so that the device controls the flow direction of the liquid through the flow limiter 3.

[0029] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel rotary joint, comprising an inner diameter tube (1), characterized in that: A positioning plate (2) is fixedly connected to the outer wall of the inner diameter tube (1) near one end, and a plurality of positioning holes (201) are respectively opened at the edge of the outer wall of the positioning plate (2); a plurality of connection holes (101) are respectively opened on the outer wall of one end of the inner diameter tube (1), and a plurality of sliding sleeve limiters (102) are respectively fixedly connected to the outer wall of the inner diameter tube (1); a plurality of first metal sleeves (103) are rotatably connected to the outer walls of the connection holes (101) through the sliding sleeve limiters (102), and the first metal sleeves (103) are located at both ends of the outer wall of the inner diameter tube (1); and a plurality of flow direction limiters (3) are respectively fixedly connected inside the inner diameter tube (1).

2. A multi-channel rotary joint according to claim 1, characterized in that: The outer wall of the inner diameter tube (1) is respectively provided with a plurality of fluid grooves (104), and a limiting cavity (105) is simultaneously provided inside the inner diameter tube (1), a connecting groove (106) is provided between the fluid groove (104) and the connecting hole (101), and the connecting hole (101), the fluid groove (104) and the connecting groove (106) are interconnected, and the inner wall of the limiting cavity (105) is fixedly connected to the outer wall of the flow direction limiter (3).

3. A multi-channel rotary joint according to claim 2, characterized in that: A sealing gasket (107) is fixedly connected between the sliding sleeve limiters (102), and a plurality of second metal sleeves (108) are rotatably connected to the center of the outer wall of the inner diameter tube (1) through the sliding sleeve limiters (102) and the sealing gasket (107).

4. A multi-channel rotary joint according to claim 3, characterized in that: A connecting sleeve hole (109) is provided on one side of the outer wall of the second metal sleeve (108) and the first metal sleeve (103), and the bottom end of the connecting sleeve hole (109) is communicated with the fluid groove (104).

5. A multi-channel rotary joint according to claim 1, characterized in that: A plug (301) is fixedly connected to one end of the flow direction limiter (3), and a water inlet (302) is provided at the center of an outer wall of one side of the plug (301), a plugging slope (303) is provided on an outer wall of one side of the plug (301), and a resistor (304) is fixedly connected to one end of the flow direction limiter (3) away from the plug (301).

6. A multi-channel rotary joint according to claim 5, characterized in that: A resistance spring (305) is fixedly connected to one side of the interior of the resister (304), and a fluid slope (306) is provided on one side of the outer wall of the resister (304).

7. A multi-channel rotary joint according to claim 6, characterized in that: The end of the resistance spring (305) away from the resistance (304) is fixedly connected to a spring locator (307), and the resistance spring (305) is located on one side inside the spring locator (307). The outer wall of the spring locator (307) away from the resistance spring (305) is fixedly connected to a limiting plug (308), and the outer wall of one side of the limiting plug (308) corresponds to the water inlet (302).

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