Driving side rotating joint assembly
By designing the installation structure of the drive-side rotary joint assembly, the problems of sealing and inconvenient installation and disassembly of traditional rotary joints are solved, achieving a pipeline connection with good sealing performance under high pressure and avoiding the loss of parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGSHAN XINGCHI HYDRAULIC LUBRICATION CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional rotary joints are not airtight and cannot be used under high pressure, especially in water media, where they are prone to leakage. They are also inconvenient to install and disassemble, and bolts are easily lost, affecting the user experience.
A drive-side rotary joint assembly was designed, which adopts an installation structure consisting of a fixed ring, a collar, a plug rod, a fixing block, and a moving structure. It can realize the installation and disassembly of pipelines without the need for external tools, and the pipeline can be fixed and separated by the cooperation of the plug rod and the screw rod.
It achieves excellent sealing under high pressure and allows for tool-free installation and disassembly of pipelines, avoiding the loss of parts and improving the convenience of installation and disassembly.
Smart Images

Figure CN224261193U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of rotary joint technology, specifically to a drive-side rotary joint assembly. Background Technology
[0002] A rotary joint is a sealing device that allows fluid to be input into a rotating device and then discharged from the rotary joint. The connection method of the rotary joint can be selected according to the working conditions, and the inlet of the transmission medium can be freely selected to enter from the side or the rear end, depending on the working conditions.
[0003] Traditional rotary joints have poor sealing and can generally only operate within a pressure range below 10MPa. They are also unsuitable for media such as water, which are either unlubricated or have poor lubrication, leading to leakage problems. Water can easily enter the lubrication chamber, damaging the bearing lubrication environment and making rotation difficult. Chinese patent (publication number: CN107061899A) discloses an externally driven rotary joint that effectively prevents high-pressure water leakage, thus avoiding high-pressure water intrusion into the lubrication chamber containing the bearing and causing grease lubrication failure. However, since the above-mentioned document uses bolts to connect it to the pipeline, users need to use tools during installation, which is inconvenient and causes inconvenience. Furthermore, the bolts and nuts are small and are easily lost during disassembly and installation, thus affecting the installation of the rotary joint. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a drive-side rotary joint assembly that offers advantages such as easy installation and disassembly, thus solving the problem of inconvenient installation and disassembly.
[0005] To achieve the above objectives, this application provides the following technical solution: a drive-side rotary joint assembly, comprising a rotary joint body, wherein a first connecting pipe and a second connecting pipe are respectively provided at the left and right ends of the rotary joint body, and the output end and input end of the rotary joint body are provided with mounting structures for mounting the first connecting pipe and the second connecting pipe thereto;
[0006] The installation structure includes two fixing rings, two sets of fixing blocks, two collars, two insert rods fixedly installed on opposite walls of the left and right collars, sealing rings fixedly installed inside the two fixing rings, and a movable structure fixedly installed on opposite walls of the upper and lower sets of fixing blocks.
[0007] By adopting the above technical solution, the first connecting pipe or the second connecting pipe can be installed on the rotary joint without the use of external tools, which can effectively reduce the inconvenience of rotary joint installation. Furthermore, when the first connecting pipe or the second connecting pipe is removed from the input or output end of the rotary joint, the loss of parts during disassembly can be effectively reduced, thus avoiding affecting subsequent installation.
[0008] Furthermore, the two fixing rings are respectively fixed to the output end and input end of the rotary joint body, and the two collars are respectively fixed to the outer surface of the first connecting pipe and the second connecting pipe.
[0009] Using the above technical solution, the fixing ring abuts against the collar on its corresponding side, so that the first connecting pipe and the second connecting pipe can be installed and fixed together with the output end and input end of the rotary joint body.
[0010] Furthermore, each of the two fixing rings has a T-shaped slot on its opposite side for inserting the insertion rod into it.
[0011] Using the above technical solution, the insertion rod can be inserted into the interior of the fixing ring through the T-shaped slot so that the collar can be hung on the surface of the fixing ring.
[0012] Furthermore, each of the upper and lower sets of insert rods has a connecting slot for the fixing block to be located inside it on the opposite side.
[0013] By adopting the above technical solution, the fixing block can fix the insert rod in the T-shaped slot by moving it into the connecting slot of the insert rod, and fix the insert rod in the fixing ring. This allows the fixing ring and the collar to be fixedly installed together, so that the first connecting pipe and the second connecting pipe can be installed and fixed on the input and output ends of the rotary joint body.
[0014] Furthermore, the moving structure includes two sets of fixed blocks connected by bearings on opposite sides with screws, and each set of screws has a handle fixed at opposite ends. The moving structure also includes a resistance structure disposed on opposite sides of the two sets of fixed blocks.
[0015] The above technical solution is adopted so that the upper and lower fixing blocks can move relative to each other or away from each other in the two T-shaped slots of the fixing ring, thereby moving the fixing blocks into the connecting slot of the insertion rod.
[0016] Furthermore, both ends of the upper part of the two fixing rings are provided with threaded holes for the screw to pass through and be threadedly connected to it.
[0017] By adopting the above technical solution, the screw can be moved into the T-shaped slot of the fixing ring through the threaded connection with the threaded hole. The screw can move in or out of the T-shaped slot through the threaded hole, so that the screw can be connected to the fixing block located in the T-shaped slot. The screw can drive the fixing block to move up and down in the T-shaped slot of the fixing ring, so that the fixing block can move in or out of the connecting slot of the insertion rod.
[0018] Furthermore, the resistance structure includes two hinged rods hinged to one wall opposite to the upper and lower sets of fixed blocks. The other end of each hinged rod is hinged to a pressure block. Two crossbars pass through the interior of the two pressure blocks in the same set, and springs are sleeved on the outer surface of each crossbar.
[0019] The above technical solution is adopted so that the fixing block can exert a pushing force, thereby further ensuring the stability of the fixing block when it is inserted into the connecting slot of the plug rod.
[0020] Furthermore, each of the two pressure blocks has two circular holes on its opposite side for the two crossbars to pass through and slide inside.
[0021] By adopting the above technical solution, the pressure block can move on the surface of the crossbar through the round hole, so that the pressure block can compress the spring sleeved on the surface of the crossbar.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] This drive-side rotary joint assembly, with its mounting structure, allows the first or second connecting pipe to be installed on the rotary joint without the need for external tools. This effectively reduces the inconvenience of installing the rotary joint. Furthermore, when the first or second connecting pipe is removed from the input or output end of the rotary joint, it effectively reduces the possibility of parts being lost during disassembly, thus avoiding any impact on subsequent installation. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this application;
[0025] Figure 2 This is a schematic diagram of the structure of the fixing ring and the collar in this application;
[0026] Figure 3 This is a schematic diagram of the installation structure of this application.
[0027] In the diagram: 1. Rotary joint body; 2. First connecting pipe; 3. Second connecting pipe; 4. Installation structure; 41. Fixing ring; 42. Collar ring; 43. Insert rod; 44. Sealing ring; 45. Fixing block; 46. Connecting rod; 47. Handle; 48. Hinge rod; 49. Pressure block; 410. Crossbar; 411. Spring. Detailed Implementation
[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0029] Please see Figure 1 In this embodiment, a drive-side rotary joint assembly includes a rotary joint body 1. The left and right ends of the rotary joint body 1 are respectively provided with a first connecting pipe 2 and a second connecting pipe 3. The output end and the input / output end of the rotary joint body 1 are provided with an installation structure 4 for installing the first connecting pipe 2 and the second connecting pipe 3 therewith.
[0030] Please see Figures 1 to 3 The installation structure 4 in this embodiment includes two fixing rings 41, two sets of fixing blocks 45, two collars 42, two insert rods 43 fixedly installed on opposite walls of the left and right collars 42, sealing rings 44 fixedly installed inside the two fixing rings 41, and a movable structure fixedly installed on opposite walls of the upper and lower sets of fixing blocks 45.
[0031] Two fixing rings 41 are fixed to the output end and input end of the rotary joint body 1, respectively, and two collars 42 are fixed to the outer surface of the first connecting pipe 2 and the second connecting pipe 3, respectively. The fixing rings 41 abut against the collars 42 on their corresponding sides, so that the first connecting pipe 2 and the second connecting pipe 3 can be installed and fixed together with the output end and input end of the rotary joint body 1.
[0032] Furthermore, each of the two collars 42 has an annular groove on one of its opposite sides for inserting the sealing ring 44 into it. This allows the sealing ring 44 to be inserted into the annular groove when the collar 42 and the fixed ring 41 are joined together, thereby enhancing the sealing performance at the connection between the fixed ring 41 and the collar 42. This also improves the sealing performance when the rotary joint body 1 is connected to the first connecting pipe 2 or the second connecting pipe 3.
[0033] In addition, each of the two fixing rings 41 has a T-shaped slot on one of its opposite sides for inserting the rod 43 into its interior. The rod 43 can be inserted into the interior of the fixing ring 41 through the T-shaped slot so that the collar 42 can be hung on the surface of the fixing ring 41.
[0034] Furthermore, each of the upper and lower sets of insert rods 43 has a connecting slot for the fixing block 45 to be located inside it. By moving the fixing block 45 into the connecting slot of the insert rod 43, the fixing block 45 can fix the insert rod 43 in the T-shaped slot, and the insert rod 43 can be fixed in the fixing ring 41. This allows the fixing ring 41 and the collar 42 to be fixedly installed together, so that the first connecting pipe 2 and the second connecting pipe 3 can be installed and fixed on the input and output ends of the rotary joint body 1.
[0035] Please see Figure 3The moving structure in this embodiment includes two sets of upper and lower fixed blocks 45 connected by a bearing to a screw 46 on opposite sides. Each of the two sets of upper and lower screws 46 has a handle 47 fixed at one opposite end. The moving structure also includes a resistance structure disposed on the opposite side of the two sets of upper and lower fixed blocks 45.
[0036] Secondly, both ends of the upper part of the two fixing rings 41 are provided with threaded holes for the screw 46 to pass through and be threadedly connected to it. The threaded holes are connected to the T-shaped slot holes, so that the screw 46 can move into the T-shaped slot holes of the fixing rings 41 by threading into the threaded holes. The screw 46 can move in or out of the T-shaped slot holes through the threaded holes, so that the screw 46 can be connected to the fixing block 45 located in the T-shaped slot holes. The screw 46 can drive the fixing block 45 to move up and down in the T-shaped slot holes of the fixing rings 41, so that the fixing block 45 can move in or out of the connecting slot holes of the insertion rod 43.
[0037] Please see Figure 3 In this embodiment, the resistance structure includes two hinge rods 48 that are hinged to one wall opposite to the upper and lower sets of fixed blocks 45. The other end of the hinge rod 48 is hinged to a pressure block 49. Two crossbars 410 pass through the interior of the two pressure blocks 49 in the same set. A spring 411 is sleeved on the outer surface of the crossbar 410.
[0038] Meanwhile, each of the two pressure blocks 49 has two round holes on its opposite side for the two crossbars 410 to pass through and slide inside, so that the pressure blocks 49 can move on the surface of the crossbars 410 through the round holes.
[0039] Furthermore, the left and right ends of the two crossbars 410 are fixed to the left and right walls of the T-shaped slot of the fixing ring 41, so that the pressure block 49 can move stably in the T-shaped slot of the fixing ring 41 through the two crossbars 410, and it is also convenient for the pressure block 49 to abut against the spring 411 sleeved on the surface of the crossbars 410 and to squeeze the spring 411.
[0040] Furthermore, the screw 46 is located between the two crossbars 410 to prevent the two crossbars 410 from obstructing the movement trajectory of the screw 46, thereby facilitating the movement of the screw 46 and the fixed block 45.
[0041] The working principle of the above embodiments is as follows:
[0042] In use, by splicing the collar 42 of the first connecting pipe 2 or the second connecting pipe 3 with the fixed ring 41 at the input or output end of the rotary joint body 1, the sealing ring 44 can be inserted into the annular groove of the collar 42. At the same time, the two insert rods 43 can be inserted into the two T-shaped grooves of the fixed ring 41, so that the collar 42 can be connected with the fixed ring 41. Rotating the upper and lower handles 47 causes the two screws 46 to rotate, and the upper and lower screws 46 gradually move into the fixed ring 41. This allows the upper and lower screws 46 to drive the upper and lower fixing blocks 45 to move relative to each other in the two T-shaped grooves of the fixed ring 41, thereby allowing the fixing blocks 45 to move into the connecting ring of the insert rods 43. While the two upper and lower fixing blocks 45 move relative to each other in the slot, the two fixing blocks 45 pull the two sets of left and right pressure blocks 49 relative to each other through the two sets of upper and lower hinge rods 48, so that the pressure blocks 49 no longer squeeze the spring 411 sleeved on the surface of the crossbar 410. This allows the fixing blocks 45 to fix the insertion rod 43 in the T-shaped slot of the fixing ring 41, so that the fixing ring 41 and the collar 42 can be installed and fixed together. Then the first connecting pipe 2 or the second connecting pipe 3 can be installed and fixed on the input end or output end of the rotary joint body 1. Therefore, the first connecting pipe 2 or the second connecting pipe 3 can be installed on the rotary joint body 1 without the use of external tools, which can effectively reduce the inconvenience of installing the rotary joint body 1.
[0043] Rotating the two handles 47 in the opposite direction moves the two screws 46 out of the fixed ring 41, allowing the two screws 46 to drive the two fixed blocks 45 to move in opposite directions. The two fixed blocks 45 can then press the two sets of hinge rods 48, which in turn push the two sets of pressure blocks 49 to move in opposite directions. This allows the pressure blocks 49 to press the spring 411 sleeved on the surface of the crossbar 410, thus allowing the fixed blocks 45 to be removed from the connecting slot of the insertion rod 43. This also separates the fixed ring 41 from the collar 42, allowing the insertion rod 43 to be moved out of the T-shaped slot of the fixed ring 41. This enables the first connecting pipe 2 or the second connecting pipe 3 to be detached from the input or output end of the rotary joint body 1, effectively reducing the possibility of missing parts during disassembly and avoiding impact on subsequent installation.
Claims
1. A drive-side rotary joint assembly, comprising a rotary joint body (1), characterized in that: The rotary joint body (1) is provided with a first connecting pipe (2) and a second connecting pipe (3) at its left and right ends respectively. The output end and input end of the rotary joint body (1) are provided with an installation structure (4) for the first connecting pipe (2) and the second connecting pipe (3) to be installed thereon. The installation structure (4) includes two fixing rings (41), two sets of fixing blocks (45), two collars (42), two insert rods (43) fixedly installed on opposite walls of the two collars (42), a sealing ring (44) fixedly installed inside the two fixing rings (41), and a movable structure fixedly installed on opposite walls of the two sets of fixing blocks (45).
2. The drive-side rotary joint assembly according to claim 1, characterized in that: The two fixing rings (41) are respectively fixed to the output end and input end of the rotary joint body (1), and the two collars (42) are respectively fixed to the outer surface of the first connecting pipe (2) and the second connecting pipe (3).
3. The drive-side rotary joint assembly according to claim 1, characterized in that: The two fixing rings (41) each have a T-shaped slot on one side facing each other for inserting the rod (43) into it.
4. The drive-side rotary joint assembly according to claim 1, characterized in that: The upper and lower sets of the insert rods (43) are provided with connecting slots on opposite sides for the fixing block (45) to be located inside.
5. The drive-side rotary joint assembly according to claim 1, characterized in that: The moving structure includes two sets of fixed blocks (45) on opposite sides connected by a screw (46) through a bearing. Each of the two sets of screws (46) has a handle (47) fixed at one end opposite to the other. The moving structure also includes a resistance structure set on the opposite side of the two sets of fixed blocks (45).
6. The drive-side rotary joint assembly according to claim 5, characterized in that: Both ends of the two fixing rings (41) are provided with threaded holes for the screw (46) to pass through and be threadedly connected to it.
7. A drive-side rotary joint assembly according to claim 5, characterized in that: The resistance structure includes two hinge rods (48) hinged to one side of the upper and lower fixed blocks (45) respectively. The other end of the hinge rod (48) is hinged to a pressure block (49). The two pressure blocks (49) in the same group have two crossbars (410) running through their interiors. The outer surface of the crossbars (410) is fitted with a spring (411).
8. The drive-side rotary joint assembly according to claim 7, characterized in that: The two pressure blocks (49) on the left and right sides each have two round holes on their opposite sides for the two crossbars (410) to pass through and slide inside them.