Multi-channel rotary joint

Abstract

The invention discloses a multi-channel rotary joint, which relates to the technical field of rotary joints, and comprises a static part and a multi-channel valve core assembled with the bottom of the static part, a first flow channel, a second flow channel and a third flow channel are sequentially formed in the circumferential direction of the static component, penetrate through the multi-channel valve element and are sequentially provided with a first discharging port, a second discharging port and a third discharging port in the upper portion, the middle portion and the lower portion of the multi-channel valve element. Through the arrangement of the first flow channel, the second flow channel and the third flow channel, the multi-position and multi-state discharging mode can be achieved in cooperation with the dividing effect of the rotary sleeve assembly, when the multiple independent flow channels are formed through switching, independent rotary discharging of different media can be completed at a time, a mixed flow channel is formed through switching, and the discharging efficiency is improved. The multi-medium rotary conveying device can be used for multi-medium mixing and rotary conveying.

Description

Technical Field

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

[0002] For equipment that allows a certain degree of flexible connection, a flexible hose is used to connect the rotating and stationary parts to transmit the medium. A simple rotary table may be connected with a hose. A channel is provided inside the rotary joint so that the medium can be transported from the stationary pipe to the rotating equipment. With the existing rotary joint, the medium enters the inlet channel of the rotary joint under pressure, and then is transmitted to the corresponding part of the rotating equipment through the internal channel to realize the supply of the medium.

[0003] However, in the actual use process, firstly, it is often necessary to independently convey multiple media at the same frequency, which is achieved through multiple joints, which is time-consuming and labor-intensive, and it is difficult to achieve the same frequency. Secondly, such as the configuration of solutions and multi-color printing output, it is often necessary to mix and rotate the media in multiple channels. In view of the above, the line provides a multi-channel rotary joint. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-channel rotary joint, which can realize multi-position and multi-state discharging methods through the arrangement of the first flow channel, the second flow channel and the third flow channel, in conjunction with the dividing effect of the rotating sleeve assembly. When switching to form multiple independent flow channels, the independent rotary discharging of different media can be completed at one time. When switching to form a mixing flow channel, it can be used for mixing multiple media and performing rotary transportation.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-channel rotary joint, comprising: a stationary component, and a multi-channel valve core assembled with the bottom of the stationary component; the stationary component is provided with a first flow channel, a second flow channel and a third flow channel in sequence in the circumferential direction, the first flow channel, the second flow channel and the third flow channel respectively pass through the multi-channel valve core and are provided with a first discharge port, a second discharge port and a third discharge port in sequence at the upper, middle and lower parts of the multi-channel valve core; and a first channel switching assembly, a second channel switching assembly and a third channel switching assembly arranged on the stationary component and acting on the first flow channel, the second flow channel and the third flow channel in sequence, for changing the closed state of the corresponding flow channel; it also includes a rotating sleeve assembly rotatably mounted on the outer wall of the multi-channel valve core, a first rotary sealing structure, a second rotary sealing structure and a first rotary sealing structure are arranged in sequence between the rotating sleeve assembly and the multi-channel valve core from top to bottom; the first discharge port is arranged in a first cavity formed by the first rotary sealing structure and the second rotary sealing structure, and the second discharge port is arranged in a second cavity formed by the second rotary sealing structure and the first rotary sealing structure.

[0006] Preferably, the first flow channel includes a first feed port opened on the stationary component, a first feed bin vertically connected to the first feed port, an intermediate bin opened on the top of the multi-channel valve core, and a first receiving bin opened on the multi-channel valve core and corresponding to the first feed bin, and the first discharge port is connected to the bottom end of the first receiving bin.

[0007] Preferably, the second flow channel includes a second feed port opened on the stationary component, a second feed bin vertically connected to the second feed port, a second receiving bin corresponding to the second feed bin is opened on the multi-channel valve core, and the second discharge port is connected to the bottom end of the second receiving bin.

[0008] Preferably, the third flow channel includes a third feed port opened on the stationary component, a third feed bin vertically connected to the third feed port, a third receiving bin corresponding to the third feed bin is opened on the multi-channel valve core, and the third discharge port is connected to the bottom end of the second receiving bin.

[0009] Preferably, the first channel switching assembly, the second channel switching assembly, and the third channel switching assembly have the same structure. The first channel switching assembly includes a transmission sleeve built into the first feed bin and can slide up and down within a limited range. The transmission sleeve is provided with an open groove on one side close to the first feed port, and the opening length of the open groove is greater than the diameter of the first feed port, as well as a first sealing step portion arranged at the lower part of the transmission sleeve. A ring array of connecting grooves is provided on the transmission sleeve below the first sealing step portion, and a second sealing step portion is provided at the bottom of the connecting groove; and a screw adjustment assembly connected to the top of the transmission sleeve is used to drive the transmission sleeve to move up and down. When the transmission sleeve moves downward so that the connecting groove is completely placed inside the first receiving bin, the first feed bin is completely connected to the first receiving bin and forms an independent closed channel. When the connecting groove is placed between the first receiving bin and the intermediate bin, the first receiving bin is connected to the intermediate bin for a mixing flow channel. When the connecting groove is completely placed upward inside the intermediate bin, the first feed port is connected to the intermediate bin, which can be used as a channel for adding a mixed medium.

[0010] Preferably, the screw adjustment assembly includes a mounting plate fixed on the top of the first feed bin, with a screw spirally connected to the mounting plate, and the screw is rotatably connected to the top of the transmission sleeve. When the screw rotates, it can drive the transmission sleeve to move up and down.

[0011] Preferably, three auxiliary channels are provided in a ring on the stationary component, each auxiliary channel is provided with a one-way valve head assembly, and vertical grooves corresponding to the auxiliary channels are provided on the multi-channel valve core. When the first flow channel, the second flow channel and the third flow channel are closed channels, the auxiliary channels can be connected to cold and hot gases to control the medium temperature. When the first flow channel, the second flow channel and the third flow channel are mixed channels, the auxiliary channels can be connected to other mixed media to achieve diverse mixing.

[0012] Preferably, the one-way valve head assembly includes an external port, and a horizontal bar and a valve slot that are closed and fixed on the upper and lower inner walls of the external port. A transmission rod that moves up and down is provided in the middle of the horizontal bar, and a ball valve is connected to the bottom of the transmission rod. The ball valve is placed in the valve slot to control its circulation, and a spring is provided on the outer wall of the transmission rod and is located between the horizontal bar and the ball valve. A mounting bracket is fixed on the top of the transmission rod. When the external pipe is spirally connected to the external port and moves downward along the internal thread, the ball valve can be driven out of the valve slot to open the channel.

[0013] Preferably, the multi-channel valve core includes a flow channel body, and the upper, middle and lower parts of the flow channel body are provided with a third mounting ring, a second mounting ring and a first mounting ring in sequence, the rotating sleeve assembly includes a sleeve body, and a first extension channel, a first rotation port, a second rotation port and a second extension channel are provided on the sleeve body from top to bottom, the first rotation port and the second rotation port are used to receive the medium in the first cavity and the second cavity respectively; the first extension channel and the second extension channel are connected to the first cavity and the second cavity respectively, and can be used as monitoring holes for plugging corresponding sensing equipment, the inner walls of the upper, middle and lower parts of the sleeve body are provided with a first mounting groove, a second mounting groove and a third mounting groove in sequence, the first rotary sealing structure is assembled between the third mounting ring and the first mounting groove, the second rotary sealing structure is assembled between the second mounting ring and the second mounting groove, and the first rotary sealing structure is assembled between the first mounting ring and the third mounting groove.

[0014] Preferably, the top of the stationary component is also equipped with an engaging drive structure for driving the rotating sleeve assembly to rotate, the engaging drive structure includes bolts, the upper surface of the bolts is fixed with annular mounting strips, the mounting strips are all assembled on the stationary component by bolts, one of the mounting strips is equipped with a motor, the output end of the motor is fixed with a gear, and a connecting ring rotatably mounted on the lower part of the bolt, the outer wall of the connecting ring is provided with an external gear that meshes with the gear; a plurality of extensions are distributed in an annular manner on the inner wall of the connecting ring, a mounting rod is installed on the extension, a plurality of long hole grooves are distributed in an annular manner on the rotating sleeve assembly, one end of the mounting rod passes through the long hole groove and is connected to a threaded groove, and a nut is threadedly connected to the threaded groove; the other two mounting strips can be used as connecting assembly parts and assembled on the working equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention can realize multi-position and multi-state discharging methods through the arrangement of the first flow channel, the second flow channel and the third flow channel, in conjunction with the dividing effect of the rotating sleeve assembly. First, it can switch to form multiple independent flow channels to realize independent rotary discharging of different media at one time. Second, it can switch to form a mixing flow channel for mixing and rotating conveying of multiple media. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the three-dimensional structure of the rotary joint of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the top view structure;

[0019] Figure 3 for Figure 2 Schematic diagram of CC structure;

[0020] Figure 4 for Figure 2 Schematic diagram of DD structure;

[0021] Figure 5 for Figure 2 Schematic diagram of EE structure;

[0022] Figure 6 for Figure 2 Schematic diagram of the internal three-dimensional structure along the CC section;

[0023] Figure 7 for Figure 6 Schematic diagram of a local enlarged structure;

[0024] Figure 8 for Figure 2 Schematic diagram of the internal three-dimensional structure along the DD section;

[0025] Figure 9 for Figure 2 Schematic diagram of the internal three-dimensional structure along the EE section;

[0026] Figure 10 This is an enlarged structural diagram of point A of the present invention;

[0027] Figure 11 This is a schematic diagram of the disassembled structure of the meshing drive structure and the rotary joint of the present invention;

[0028] Figure 12 It is a schematic diagram of the assembly structure of the meshing drive structure and the rotary joint of the present invention;

[0029] Figure 13 for Figure 12 Another perspective structural diagram.

[0030] In the figure: 1, stationary component; 111, first feed port; 1111, first feed bin; 112, first receiving bin; 113, first discharge port; 114, first rotary port; 144, second rotary port;

[0031] 120. Intermediate warehouse;

[0032] 140, second feed port; 1401, second feed bin; 141, second receiving bin; 142, second discharge port;

[0033] 130, third receiving bin; 131, third feeding port; 1311, third feeding bin; 132, third discharging port;

[0034] 161. Third rotary seal structure; 162. Second rotary seal structure; 163. First rotary seal structure;

[0035] 2. Rotating sleeve assembly; 211. Sleeve body; 212. Second mounting slot; 213. Third mounting slot; 214. First mounting slot; 230. Long hole slot;

[0036] 3. First channel switching assembly; 311. Transmission sleeve; 312. Opening groove; 313. First sealing step; 314. Connecting groove; 315. Second sealing step; 316. Mounting plate; 317. Screw;

[0037] 511. Mounting bar; 512. Bolt; 513. External gear; 514. Connecting ring; 515. Gear; 516. Motor; 517. Extension piece; 518. Mounting rod; 519. Threaded groove; 520. Nut;

[0038] 611, external connection port; 612, internal thread; 613, mounting bracket; 614, transmission rod; 618, horizontal bar; 619, spring; 620, ball valve; 621, valve slot; 622, auxiliary channel; 623, vertical slot;

[0039] 7. Third channel switching component;

[0040] 8. Second channel switching component;

[0041] 811, flow channel body; 812, first mounting ring channel; 813, second mounting ring channel; 814, third mounting ring channel;

[0042] 911. First extension channel; 912. Second extension channel. DETAILED DESCRIPTION

[0043] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. The following describes various embodiments of the present invention in detail with reference to the accompanying drawings.

[0044] Example 1

[0045] See also Figures 1 to 13The present invention preferably provides a technical solution: a multi-channel rotary joint, comprising: a stationary component 1, and a multi-channel valve core assembled with the bottom of the stationary component 1; the stationary component 1 is provided with a first flow channel, a second flow channel and a third flow channel in sequence in the circumferential direction, the first flow channel, the second flow channel and the third flow channel respectively pass through the multi-channel valve core and are provided with a first discharge port 113, a second discharge port 142 and a third discharge port 132 in sequence at the top, middle and bottom of the multi-channel valve core; and a first channel switching component 3, a second channel switching component 13 provided on the stationary component 1 and acting on the first flow channel, the second flow channel and the third flow channel in sequence. Part 8, a third channel switching component 7, is used to change the closed state of the corresponding flow channel; it also includes a rotating sleeve component 2 rotatably installed on the outer wall of the multi-channel valve core, and a first rotary sealing structure 163, a second rotary sealing structure 162 and a first rotary sealing structure 163 are arranged between the rotating sleeve component 2 and the multi-channel valve core from top to bottom. The first discharge port 113 is placed in a first cavity formed by the first rotary sealing structure 163 and the second rotary sealing structure 162, and the second discharge port 142 is placed in a second cavity formed by the second rotary sealing structure 162 and the first rotary sealing structure 163.

[0046] In this application, in order to meet the needs of the equipment for rotating transmission medium: it can not only realize 360-degree rotation of the transmission medium, but also have multi-channel and different position discharge methods. Specifically, it includes a stationary component 1, a multi-channel valve core, such as Figure 1 、 3 As shown in , 4 and 5, firstly, the ports of the first flow channel, the second flow channel and the third flow channel are respectively placed at the upper part, the middle part and the lower part of the multi-channel valve core, which can realize a multi-position discharge mode;

[0047] The first channel switching component 3, the second channel switching component 8, and the third channel switching component 7 are further provided to change the closed state of the corresponding flow channel, thereby generating the following connected state:

[0048] When the flow channels are independent of each other, that is, the first channel switching component 3, the second channel switching component 8, and the third channel switching component 7 are downward so that the first flow channel, the second flow channel, and the third flow channel are completely closed and become independent flow channels, it is possible to complete the work of different media at one time. For example, when the rotating component needs to transport the medium separately at one time, the corresponding first flow channel, the second flow channel, and the third flow channel respectively transport different media and are isolated from each other, realizing multiple uses of one machine.

[0049] When it is a mixed flow channel, such as solution configuration, multi-color printing channel, etc., it is necessary to mix the media of multiple channels and rotate and spray them out, that is, by moving the first channel switching component 3, the second channel switching component 8, and the third channel switching component 7 upward to make the first flow channel, the second flow channel and the third flow channel interconnected, so as to achieve mixed discharge.

[0050] Furthermore, the first flow channel includes a first feed port 111 opened on the stationary component 1, a first feed bin 1111 vertically connected to the first feed port 111, an intermediate bin 120 opened on the top of the multi-channel valve core, and a first receiving bin 112 opened on the multi-channel valve core and corresponding to the first feed bin 1111, and the first discharge port 113 is connected to the bottom end of the first receiving bin 112.

[0051] like Figure 4 、 6 As shown in Figures 7 and 7 , the first flow channel passes through the first feed port 111, the first feed bin 1111, the first receiving bin 112 and the first discharge port 113 from top to bottom and enters the first cavity formed by the first rotary sealing structure 163 and the second rotary sealing structure 162;

[0052] Furthermore, the second flow channel includes a second feed port 140 opened on the stationary part 1, a second feed bin 1401 vertically connected to the second feed port 140, a second receiving bin 141 corresponding to the second feed bin 1401 is opened on the multi-channel valve core, and the second discharge port 142 is connected to the bottom end of the second receiving bin 141.

[0053] like Figure 5 、 9 As shown, the second flow channel passes through the second feed port 140 , the second receiving bin 141 , the second discharge port 142 from top to bottom and enters the second cavity formed by the second rotary sealing structure 162 and the first rotary sealing structure 163 .

[0054] Furthermore, the third flow channel includes a third feed port 131 opened on the stationary part 1, a third feed bin 1311 vertically connected to the third feed port 131, a third receiving bin 130 corresponding to the third feed bin 1311 is opened on the multi-channel valve core, and the third discharge port 132 is connected to the bottom end of the second receiving bin 141.

[0055] By setting the third flow channel, such as Figure 3 、 8 As shown, the third flow channel passes through the third feed port 131, the third feed bin 1311, the third receiving bin 130 from top to bottom and is discharged from the third discharge port 132 at the bottom.

[0056] Example 2

[0057] As another embodiment of the present invention, the first channel switching component 3, the second channel switching component 8, and the third channel switching component 7 have the same structure. The first channel switching component 3 includes a transmission sleeve 311 built into the first feed bin 1111 and capable of sliding up and down with a limit, and the transmission sleeve 311 is provided with an opening groove 312 on one side close to the first feed port 111. The opening length of the opening groove 312 is greater than the diameter of the first feed port 111, and a first sealing step portion 313 is provided at the lower part of the transmission sleeve 311. A connecting groove 314 in an annular array is provided on the transmission sleeve 311 below the first sealing step portion 313, and a second sealing platform is provided at the bottom of the connecting groove 314. The step portion 315; and the screw adjustment assembly connected to the top of the transmission sleeve 311, are used to drive the transmission sleeve 311 to move up and down. When the transmission sleeve 311 is downward so that the connecting groove 314 is completely placed inside the first receiving bin 112, the first feed bin 1111 is completely connected with the first receiving bin 112 and form an independent closed channel. When the connecting groove 314 is placed between the first receiving bin 112 and the intermediate bin 120, the first receiving bin 112 is connected with the intermediate bin 120 for a mixing flow channel. When the connecting groove 314 is upward and completely placed inside the intermediate bin 120, the first feed port 111 is connected with the intermediate bin 120, which can be used as a channel for adding a mixed medium.

[0058] Furthermore, the screw adjustment assembly includes a mounting plate 316 fixed on the top of the first feed bin 1111, and a screw 317 is spirally connected to the mounting plate 316. The screw 317 is rotatably connected to the top of the transmission sleeve 311. When the screw 317 rotates, it can drive the transmission sleeve 311 to move up and down.

[0059] As another embodiment of the present application, by moving the transmission sleeve 311 up and down, as shown in FIG. Figure 7 As shown, in this state, the first feed port 111 is connected to the upper half of the opening groove 312, the first sealing step 313 abuts against the intermediate chamber 120, and the connecting groove 314 is completely placed inside the first receiving chamber 112, that is, the transmission sleeve 311 can seal the first feed port 111 and the first receiving chamber 112 to form a complete and independent channel;

[0060] When the screw 317 is manually rotated, due to the upper and lower movement limit of the transmission sleeve 311 itself, the spiral rise of the screw 317 can drive the transmission sleeve 311 to move upward. When the connecting groove 314 is placed between the intermediate chamber 120 and the first receiving chamber 112, the intermediate chamber 120 and the first receiving chamber 112 can be spatially connected. When the first flow channel, the second flow channel and the third flow channel are all in this state, multi-channel feeding can be achieved and mixed at the position of the intermediate chamber 120. Then, the mixed medium is rotated and sprayed out at different positions of the first flow channel, the second flow channel and the third flow channel, such as in the field of agricultural spraying.

[0061] When the connecting groove 314 is completely placed inside the intermediate bin 120, the second sealing step 315 can block the top of the first receiving bin 112. At this time, the intermediate bin 120 is connected to the transmission sleeve 311 to form an independent feeding channel. At this time, the corresponding first receiving bin 112 is not working, and other channels are opened accordingly. The medium can enter the intermediate bin 120 for mixing and discharge from the selected opened channel.

[0062] Example 3

[0063] As other embodiments of the present invention, three auxiliary channels 622 are provided in a ring on the stationary component 1, and a one-way valve head assembly is provided in each auxiliary channel 622. Vertical grooves 623 corresponding to the auxiliary channels 622 are provided on the multi-channel valve core. When the first flow channel, the second flow channel and the third flow channel are closed channels, the auxiliary channels 622 can be connected to cold and hot gases to control the medium temperature. When the first flow channel, the second flow channel and the third flow channel are mixed channels, the auxiliary channels 622 can be connected to other mixed media to achieve diverse mixing.

[0064] Furthermore, the one-way valve head assembly includes an external port 611, and a horizontal bar 618 and a valve slot 621 that are sealed and fixed on the upper and lower inner walls of the external port 611. A transmission rod 614 that moves up and down is provided in the middle of the horizontal bar 618. The bottom of the transmission rod 614 is connected to a ball valve 620. The ball valve 620 is placed in the valve slot 621 to control its circulation, and a spring 619 is provided on the outer wall of the transmission rod 614 and is located between the horizontal bar 618 and the ball valve 620. A mounting bracket 613 is fixed on the top of the transmission rod 614. When the external pipe is spirally connected to the external port 611 and moves downward along the internal thread 612, the ball valve 620 can be driven to disengage from the valve slot 621 to open the channel.

[0065] In this embodiment, an auxiliary channel 622 is further provided, and a one-way valve head assembly is provided on the auxiliary channel 622. Figure 6 and 10 As shown, the auxiliary channel 622 has different effects in different states of the first flow channel, the second flow channel, and the third flow channel;

[0066] When the first flow channel, the second flow channel and the third flow channel are all independent closed flow channels, cold and hot air flows can be added through the auxiliary channel 622. For example, if the cooling liquid Figure 5 、 6As shown in Figures 10 and 11, two auxiliary channels 622 are respectively connected to the coolant inlet channel and the outlet channel. When the pipe rotates and enters the external port 611, the transmission rod 614 is squeezed downward and the ball valve 620 is separated from the valve slot 621. At this time, the channel is opened, and the coolant enters the auxiliary channel 622, the interior of the intermediate chamber 120, and the vertical slot 623, annularly wrapping around the first flow channel, the second flow channel, and the third flow channel, and finally discharged from the outlet channel where the auxiliary channel 622 is located, forming a cooling circulation channel.

[0067] When the first flow channel, the second flow channel, and the third flow channel are interconnected, other media can be added through the auxiliary channel 622 to meet the needs of mixing diversity.

[0068] Example 4

[0069] As another embodiment of the present invention, the multi-channel valve core includes a flow channel body 811, and the upper, middle and lower parts of the flow channel body 811 are provided with a third mounting ring channel 814, a second mounting ring channel 813 and a first mounting ring channel 812 in sequence. The rotating sleeve assembly 2 includes a sleeve body 211, and a first extension channel 911, a first rotation port 114, a second rotation port 144 and a second extension channel 912 are provided on the sleeve body 211 from top to bottom. The first rotation port 114 and the second rotation port 144 are used to receive the medium in the first cavity and the second cavity respectively. The first extension channel 911, the first rotation port 114, the second rotation port 144 and the second extension channel 912 are provided on the sleeve body 211 from top to bottom. The two extension channels 912 are respectively connected to the first cavity and the second cavity, and can be used as monitoring holes for plugging in corresponding sensing equipment. The inner walls of the upper, middle and lower parts of the sleeve 211 are respectively provided with a first mounting groove 214, a second mounting groove 212 and a third mounting groove 213. The first rotary seal structure 163 is assembled between the third mounting ring channel 814 and the first mounting groove 214, the second rotary seal structure 162 is assembled between the second mounting ring channel 813 and the second mounting groove 212, and the first rotary seal structure 163 is assembled between the first mounting ring channel 812 and the third mounting groove 213.

[0070] By designing the structure of the multi-channel valve core and the rotating sleeve assembly 2, as shown in FIG. Figure 6 As shown, the first rotary seal structure 163, the second rotary seal structure 162, and the first rotary seal structure 163 are all existing mature technologies, which act between the multi-channel valve core and the rotary sleeve assembly 2 from top to bottom, and are used for sealing when the rotary sleeve assembly 2 rotates, as shown in FIG. Figure 1 As shown, the outlets of the first flow channel and the second flow channel are the first discharge port 113 and the second discharge port 142 respectively, which act in the first cavity and the second cavity respectively and are rotated and ejected by the first rotary port 114 and the second rotary port 144 respectively. The outlet of the third flow channel is the third discharge port 132 as the bottom of the multi-channel valve core;

[0071] The first extension channel 911 and the second extension channel 912 are further provided, which can be used as monitoring holes to monitor the pressure, temperature, etc. in the corresponding cavity.

[0072] Example 5

[0073] As another embodiment of the present invention, the top of the stationary component 1 is also equipped with an engaging drive structure for driving the rotating sleeve assembly 2 to rotate. The engaging drive structure includes a bolt 512, and an annular mounting bar 511 is fixed to the upper surface of the bolt 512. The mounting bars 511 are all assembled on the stationary component 1 through the bolt 512. One of the mounting bars 511 is equipped with a motor 516, and a gear 515 is fixed to the output end of the motor 516, and a connecting ring 514 rotatably mounted on the lower part of the bolt 512. The outer wall of the connecting ring 514 is provided with an external gear 513 that meshes with the gear 515; a plurality of extensions 517 are annularly distributed on the inner wall of the connecting ring 514, and a mounting rod 518 is installed on the extension 517. A plurality of long hole grooves 230 are annularly distributed on the rotating sleeve assembly 2, and one end of the mounting rod 518 passes through the long hole groove 230 and is connected to a threaded groove 519, and a nut 520 is threadedly connected to the threaded groove 519; the other two mounting bars 511 can be used as connecting assembly parts and assembled on the working equipment.

[0074] In this embodiment, an assembleable engagement drive structure is provided, which, when assembled with the above-mentioned rotary joint, Figure 11 、 12 As shown in FIG13, the mounting rod 518 where the extension 517 is located is inserted and assembled in the long hole groove 230, and the nut 520 is screwed on the thread groove 519 to realize the assembly of the rotating sleeve assembly 2 and the bolt 512. When the mounting strip 511 is assembled on the stationary component 1 through the bolt 512, the assembly of the meshing drive structure and the rotary joint can be realized. Figure 13 When the remaining two mounting strips 511 are assembled on the working equipment, the driving motor 516 starts working, and under the meshing action of the gear 515 and the outer gear 513, the rotating sleeve assembly 2 can be driven to rotate, realizing 360° medium transportation.

[0075] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration. There are many ways to detachably install, such as plug-in and snap-fit ​​connections, or bolt connections.

[0076] In addition, all the connection / connection relationships mentioned in the article do not simply refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0077] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A multi-channel rotary joint, characterized in that: include: A stationary component (1), and a multi-channel valve core assembled with the bottom of the stationary component (1); The stationary component (1) is provided with a first flow channel, a second flow channel, and a third flow channel in sequence in the circumferential direction. The first flow channel, the second flow channel, and the third flow channel respectively penetrate the multi-channel valve core and are provided with a first discharge port (113), a second discharge port (142), and a third discharge port (132) in sequence at the top, middle, and bottom of the multi-channel valve core. and a first channel switching assembly (3), a second channel switching assembly (8), and a third channel switching assembly (7) disposed on the stationary component (1) and acting on the first flow channel, the second flow channel, and the third flow channel in sequence, for changing the closed state of the corresponding flow channel; It also includes a rotary sleeve assembly (2) rotatably mounted on the outer wall of the multi-channel valve core, wherein a first rotary sealing structure (163), a second rotary sealing structure (162), and a first rotary sealing structure (163) are sequentially arranged between the rotary sleeve assembly (2) and the multi-channel valve core from top to bottom; The first discharge port (113) is placed in a first cavity formed by the first rotary sealing structure (163) and the second rotary sealing structure (162), and the second discharge port (142) is placed in a second cavity formed by the second rotary sealing structure (162) and the first rotary sealing structure (163).

2. A multi-channel rotary joint according to claim 1, characterized in that: The first flow channel comprises a first feed port (111) provided on the stationary component (1), a first feed bin (1111) vertically connected to the first feed port (111), an intermediate bin (120) provided on the top of the multi-channel valve core, and a first receiving bin (112) provided on the multi-channel valve core and corresponding to the first feed bin (1111), and a first discharge port (113) connected to the bottom end of the first receiving bin (112).

3. A multi-channel rotary joint according to claim 1, characterized in that: The second flow channel includes a second feed port (140) provided on the stationary component (1), a second feed bin (1401) vertically connected to the second feed port (140), a second receiving bin (141) corresponding to the second feed bin (1401) provided on the multi-channel valve core, and a second discharge port (142) connected to the bottom end of the second receiving bin (141).

4. A multi-channel rotary joint according to claim 1, characterized in that: The third flow channel comprises a third feed port (131) provided on the stationary component (1), a third feed bin (1311) vertically connected to the third feed port (131), a third receiving bin (130) corresponding to the third feed bin (1311) provided on the multi-channel valve core, and a third discharge port (132) connected to the bottom end of the second receiving bin (141).

5. A multi-channel rotary joint according to claim 1, characterized in that: The first channel switching assembly (3), the second channel switching assembly (8), and the third channel switching assembly (7) have the same structure. The first channel switching assembly (3) comprises a transmission sleeve (311) built into the first feed bin (1111) and capable of sliding up and down with a limited position. The transmission sleeve (311) is provided with an opening groove (312) on a side close to the first feed port (111). The opening length of the opening groove (312) is greater than the diameter of the first feed port (111). A first sealing step portion (313) is provided at the lower portion of the transmission sleeve (311). An annular array of connecting grooves (314) is provided on the transmission sleeve (311) below the first sealing step portion (313). A second sealing step portion (315) is provided at the bottom of the connecting groove (314). and a screw adjustment assembly connected to the top of the transmission sleeve (311), used to drive the transmission sleeve (311) to move up and down. When the transmission sleeve (311) is downward so that the communication groove (314) is completely placed inside the first receiving bin (112), the first feed bin (1111) and the first receiving bin (112) are completely connected to form an independent closed channel. When the communication groove (314) is placed between the first receiving bin (112) and the intermediate bin (120), the first receiving bin (112) and the intermediate bin (120) are connected to form a mixing channel. When the communication groove (314) is upward and completely placed inside the intermediate bin (120), the first feed port (111) is connected to the intermediate bin (120) and can be used as a channel for adding a mixed medium.

6. A multi-channel rotary joint according to claim 5, characterized in that: The screw adjustment assembly includes a mounting plate (316) fixed to the top of the first feed bin (1111), a screw (317) being spirally connected to the mounting plate (316), and the screw (317) being rotatably connected to the top of the transmission sleeve (311). When the screw (317) rotates, the transmission sleeve (311) can be driven to move up and down.

7. A multi-channel rotary joint according to claim 1, characterized in that: Three auxiliary channels (622) are provided in an annular manner on the stationary component (1), and a one-way valve head assembly is provided in each auxiliary channel (622). Vertical grooves (623) corresponding to the auxiliary channels (622) are provided on the multi-channel valve core. When the first flow channel, the second flow channel, and the third flow channel are closed channels, the auxiliary channels (622) can be connected to cold and hot gases to control the temperature of the medium. When the first flow channel, the second flow channel, and the third flow channel are mixed channels, the auxiliary channels (622) can be connected to other mixed media to achieve diversified mixing.

8. A multi-channel rotary joint according to claim 7, characterized in that: The one-way valve head assembly includes an external port (611), a horizontal bar (618) and a valve slot (621) that are sealed and fixed on the upper and lower inner walls of the external port (611), a transmission rod (614) that moves up and down is provided in the middle of the horizontal bar (618), a ball valve (620) is connected to the bottom of the transmission rod (614), and the ball valve (620) is placed in the valve slot (621) for controlling its flow, and a spring (619) is provided on the outer wall of the transmission rod (614) and is located between the horizontal bar (618) and the ball valve (620), and a mounting bracket (613) is fixed on the top of the transmission rod (614), and when the external pipe is spirally connected to the external port (611) and moves downward along the internal thread (612), the ball valve (620) can be driven to disengage from the valve slot (621) to open the channel.

9. A multi-channel rotary joint according to claim 5, characterized in that: The multi-channel valve core comprises a flow channel body (811), wherein the upper portion, the middle portion, and the lower portion of the flow channel body (811) are provided with a third mounting ring channel (814), a second mounting ring channel (813), and a first mounting ring channel (812) in sequence; the rotating sleeve assembly (2) comprises a sleeve body (211), a first extension channel (911), a first rotation port (114), a second rotation port (144), and a second extension channel (912) in sequence on the sleeve body (211) from top to bottom; the first rotation port (114) and the second rotation port (144) are used to receive the medium in the first cavity and the second cavity, respectively; The first extension channel (911) and the second extension channel (912) are respectively connected to the first cavity and the second cavity, and can be used as monitoring holes for plugging corresponding sensing equipment. The inner walls of the upper, middle and lower parts of the sleeve (211) are provided with a first mounting groove (214), a second mounting groove (212) and a third mounting groove (213) in sequence. The first rotary seal structure (163) is assembled between the third mounting ring channel (814) and the first mounting groove (214), the second rotary seal structure (162) is assembled between the second mounting ring channel (813) and the second mounting groove (212), and the first rotary seal structure (163) is assembled between the first mounting ring channel (812) and the third mounting groove (213).

10. A multi-channel rotary joint according to claim 5, characterized in that: The top of the stationary component (1) is also equipped with an engagement drive structure for driving the rotating sleeve assembly (2) to rotate. The engagement drive structure includes a bolt (512). An annularly distributed mounting strip (511) is fixed to the upper surface of the bolt (512). The mounting strips (511) are all assembled on the stationary component (1) through the bolt (512). A motor (516) is assembled on one of the mounting strips (511). A gear (515) is fixed to the output end of the motor (516). A connecting ring (514) is rotatably mounted on the lower part of the bolt (512). The outer wall of the connecting ring (514) is provided with an outer gear (513) that meshes with the gear (515). The inner wall of the connecting ring (514) is provided with a plurality of extension pieces (517) distributed in an annular manner, and a mounting rod (518) is mounted on the extension piece (517). The rotating sleeve assembly (2) is provided with a plurality of long hole grooves (230) distributed in an annular manner, and one end of the mounting rod (518) passes through the long hole groove (230) and is connected to a thread groove (519), and a nut (520) is threadedly connected to the thread groove (519); Another two mounting strips (511) can be used as connecting assembly parts and assembled on working equipment.

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