Multi-channel hydraulic rotary joint

Abstract

The utility model discloses a multi-channel hydraulic rotary joint, which belongs to the technical field of rotary joints, and comprises a rotary joint body, and further comprises butt joint pipes symmetrically arranged at the top and the bottom of the rotary joint body along the front-back direction, butt joint holes are symmetrically formed in the top and the bottom of the rotary joint body in the front-back direction, one end of each fixing pipe is meshed with the corresponding butt joint hole internally provided with an internal thread through an external thread, a support is fixed to each fixing pipe, and the rotary joint body and the supports are each provided with an anti-moving assembly. The support, the limiting plate, the locking plate, the auxiliary frame and the auxiliary socket can quickly form an integral structure, so that the fixing pipe can be positioned, the stability when the fixing pipe is in butt joint with the rotating joint body is improved, the fixing pipe can be prevented from being easily separated from the rotating joint body, and the anti-moving effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of rotary joint technology, and in particular relates to a multi-channel hydraulic rotary joint. Background Technology

[0002] Multi-channel hydraulic rotary joints are a type of rotary joint specifically designed for low-speed, high-pressure equipment with multiple media and multiple pathways. They are used in machining center rotary tables, hydraulic workstations, coilers, converters, ladle rotary tables, hydraulic machinery, and multi-channel high-pressure controllers. Depending on the working conditions, the joint can be connected via the side or rear end, and can be used for different media inlets.

[0003] When using multi-channel hydraulic rotary joints, the pipe is usually directly connected to the external hole on the joint. However, no auxiliary anti-slip structure is installed on the joint to prevent the pipe from falling off due to large impact forces, which poses a significant safety hazard. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a multi-channel hydraulic rotary joint, which solves the problem that the lack of an auxiliary anti-displacement structure for the pipeline on the multi-channel hydraulic rotary joint makes the pipeline prone to falling off due to large impact forces.

[0005] This utility model is implemented as follows: a multi-channel hydraulic rotary joint includes a rotary joint body and further includes: a pair of connecting pipes symmetrically arranged at the top and bottom of the rotary joint body along the front-back direction. One end of each pair of connecting pipes is rotatably equipped with a fixed pipe. The top and bottom of the rotary joint body are symmetrically provided with mating holes along the front-back direction. One end of the fixed pipe engages with the mating hole with an internal thread through an external thread. A bracket is fixed on each set of fixed pipes. Anti-slip components are provided on both the rotary joint body and the bracket.

[0006] As a preferred embodiment of this utility model, the anti-shifting component includes auxiliary frames symmetrically attached to both sides of the front of the bracket in the left-right direction. One end of each set of auxiliary frames is fixed with a positioning post. An auxiliary socket for inserting the positioning post is fixed on the rotary joint body. The other end of each set of auxiliary frames is fixed with a limiting plate attached to the bracket. Locking plates are inserted on both sides of the front of each set of brackets, and one end of the locking plate is fixed to the auxiliary frame. A T-shaped snap-fit ​​post is inserted on each set of limiting plates. One end of the T-shaped snap-fit ​​post passes through the bracket and the locking plate and extends to the rotary joint body. A spring is wound around each set of T-shaped snap-fit ​​posts, and both ends of the spring are fixed to the protruding end of the T-shaped snap-fit ​​post and the limiting plate.

[0007] As a preferred embodiment of this utility model, auxiliary slides are provided on the outer sides of the front of the two adjacent sets of auxiliary frames, and sliding frames are slidably arranged in the two adjacent sets of auxiliary slides. The two ends of the sliding frames away from the rotary joint body are respectively fixed on the corresponding T-shaped snap-fit ​​posts.

[0008] As a preferred embodiment of this invention, a gap is reserved between the front side of the inner cavity of the sliding frame and the connecting pipe.

[0009] As a preferred embodiment of this utility model, the locking plate has a chamfered end at the end away from the auxiliary frame.

[0010] As a preferred embodiment of this utility model, two sets of U-shaped reinforcing frames are fixed sequentially along the vertical direction on the front of two adjacent sets of auxiliary frames.

[0011] As a preferred embodiment of this utility model, each set of fixed pipes is fixed with a base plate, and the side of the base plate away from the connecting pipe is attached to the rotary joint body.

[0012] This invention, by setting an anti-slip component, utilizes the insertion of positioning posts and auxiliary sockets, along with the insertion of locking plates and brackets, to pre-lock the auxiliary frame onto the bracket and auxiliary socket. The design of springs and T-shaped locking posts forms a locking structure for the bracket, limiting plate, and locking plate, thereby quickly locking the auxiliary frame and preventing it from easily detaching from the bracket. This allows the bracket, limiting plate, locking plate, auxiliary frame, and auxiliary socket to quickly form an integral structure for positioning the fixed tube, improving the stability when the fixed tube is connected to the rotary joint body and preventing the fixed tube from detaching from the rotary joint body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0015] Figure 3 This is a partial exploded view of the structure of this utility model;

[0016] Figure 4 This is a partial rear sectional view of the structure of this utility model;

[0017] Figure 5 This is a partial three-dimensional view of the structure of this utility model.

[0018] In the picture:

[0019] 1. Rotary joint body; 2. Connecting pipe; 3. Fixing pipe; 4. Connecting hole; 5. Base; 6. Bracket; 7. Auxiliary socket; 8. Auxiliary frame; 9. Limiting plate; 10. Locking plate; 11. Positioning post; 12. T-shaped snap-fit ​​post; 13. Spring; 14. Sliding frame; 15. Auxiliary slide rail; 16. U-shaped reinforcing frame. Detailed Implementation

[0020] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0021] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1 to 5 As shown in the figure, the present invention provides a multi-channel hydraulic rotary joint, including a rotary joint body 1, and further including: a pairing pipe 2 symmetrically arranged at the top and bottom of the rotary joint body 1 along the front-back direction, a fixing pipe 3 rotatably mounted at one end of each pairing pipe 2, and docking holes 4 symmetrically opened at the top and bottom of the rotary joint body 1 along the front-back direction. One end of the fixing pipe 3 is engaged with the docking hole 4 with an internal thread through an external thread. A bracket 6 is fixed on each set of fixing pipes 3. Anti-displacement components are provided on the rotary joint body 1 and the bracket 6. By setting the anti-displacement components, the fixing pipe 3 can be positioned, which improves the stability when the fixing pipe 3 is docked with the rotary joint body 1 and can effectively prevent the fixing pipe 3 from easily separating from the rotary joint body 1.

[0023] As a preferred embodiment of this utility model, the anti-slip assembly includes auxiliary frames 8 symmetrically attached to both sides of the front of the bracket 6 in the left-right direction. One end of each auxiliary frame 8 is fixed with a positioning post 11. An auxiliary socket 7 for inserting the positioning post 11 is fixed on the rotary joint body 1. The other end of each auxiliary frame 8 is fixed with a limiting plate 9 attached to the bracket 6. Locking plates 10 are inserted into both sides of the front of each bracket 6, with one end of the locking plate 10 fixed to the auxiliary frame 8. A T-shaped snap-fit ​​post 12 is inserted into each limiting plate 9. One end of the T-shaped snap-fit ​​post 12 passes through the bracket 6 and the locking plate 10 and extends towards the rotary joint body 1. Springs 13 are wound around the T-shaped snap-fit ​​posts 12. The two ends of the springs 13 are fixed to the protruding ends of the T-shaped snap-fit ​​posts 12 and the limiting plate 9. The insertion of the positioning post 11 and the auxiliary socket 7, together with the insertion of the locking plate 10 and the bracket 6, allows the auxiliary frame 8 to be pre-attached to the bracket 6 and the auxiliary socket 7. The springs 13 and the T-shaped snap-fit ​​posts 12 can form a locking structure for the locking plate 10 and the limiting plate 9, so as to quickly lock the auxiliary frame 8. This allows the bracket 6, the limiting plate 9, the locking plate 10, the auxiliary frame 8 and the auxiliary socket 7 to quickly form an integral structure, which can effectively prevent the fixing tube 3 from detaching from the rotary joint body 1.

[0024] As a preferred embodiment of this utility model, auxiliary slides 15 are provided on the outer sides of the front of two adjacent sets of auxiliary frames 8, and sliding frames 14 are slidably arranged in the two adjacent sets of auxiliary slides 15. The two ends of the sliding frames 14 away from the rotary joint body 1 are respectively fixed on the corresponding T-shaped snap-fit ​​posts 12. The design of the auxiliary slides 15 and the sliding frames 14 can slide and limit the T-shaped snap-fit ​​posts 12, preventing the T-shaped snap-fit ​​posts 12 from disengaging from the limiting plate 9 when moving.

[0025] As a preferred embodiment of this utility model, a gap is reserved between the front of the inner cavity of the sliding frame 14 and the connecting tube 2. The design of the gap facilitates the user to move the sliding frame 14 without obstruction, avoids the sliding frame 14 from colliding with the connecting tube 2 when moving, and improves the stability of movement.

[0026] As a preferred embodiment of this utility model, the locking plate 10 is provided with a chamfer at the end away from the auxiliary frame 8. The chamfer design makes it convenient for the user to quickly pass the locking plate 10 through the bracket 6 and avoids obstruction.

[0027] As a preferred embodiment of this utility model, two sets of U-shaped reinforcing frames 16 are fixed sequentially on the front of two adjacent sets of auxiliary frames 8 along the vertical direction. The design of the U-shaped reinforcing frames 16 can fix the two adjacent sets of auxiliary frames 8 and form them into an integral structure so that the two sets of auxiliary frames 8 can be moved synchronously.

[0028] As a preferred embodiment of this utility model, each set of fixed tubes 3 is fixed with a base plate 5. The side of the base plate 5 away from the connecting tube 2 is attached to the rotary joint body 1. The design of the base plate 5 can limit the fixed tube 3 and prevent the fixed tube 3 from moving excessively downward in the rotary joint body 1.

[0029] The working principle of this utility model:

[0030] refer to Figures 1 to 5 The user first rotates the fixed tube 3 to thread it into the docking hole 4 until the base 5 contacts the rotary joint body 1. At this time, the user first pulls the sliding frame 14, thereby driving the T-shaped locking post 12 to move synchronously and stretching the spring 13 until one end of the T-shaped locking post 12 moves into the limiting plate 9. At this time, the user inserts the positioning post 11 on the auxiliary frame 8 into the auxiliary socket 7, and the locking plate 10 is simultaneously inserted into the preset groove on the bracket 6. The limiting plate 9 is simultaneously attached to the side of the bracket 6 away from the rotary joint body 1. At this time, the user can use the elastic rebound of the spring 13 to drive the T-shaped locking post 12 to quickly reset and pass through the locking plate 10 and the bracket 6 to form a locking structure for the bracket 6, the limiting plate 9 and the locking plate 10, quickly locking the auxiliary frame 8. This allows the bracket 6, the limiting plate 9, the locking plate 10, the auxiliary frame 8 and the auxiliary socket 7 to quickly form an integral structure, thereby repositioning the fixed tube 3 and effectively preventing the fixed tube 3 from easily detaching from the rotary joint body 1.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-channel hydraulic rotary joint, comprising a rotary joint body (1), characterized in that: Also includes: The rotating joint body (1) is symmetrically arranged with connecting pipes (2) at the top and bottom along the front-back direction. Each set of connecting pipes (2) is rotatably equipped with a fixing pipe (3) at one end. The rotating joint body (1) is symmetrically provided with docking holes (4) at the top and bottom along the front-back direction. One end of the fixing pipe (3) is engaged with the docking hole (4) with an internal thread through an external thread. Each set of fixing pipes (3) is fixed with a bracket (6). The rotating joint body (1) and the bracket (6) are both provided with anti-slip components.

2. The multi-channel hydraulic rotary joint as described in claim 1, characterized in that: The anti-shifting assembly includes auxiliary frames (8) symmetrically attached to both sides of the front of the bracket (6) in the left-right direction. One end of each set of auxiliary frames (8) is fixed with a positioning post (11). An auxiliary socket (7) for inserting the positioning post (11) is fixed on the rotary joint body (1). The other end of each set of auxiliary frames (8) is fixed with a limiting plate (9) attached to the bracket (6). Locking plates (10) are inserted on both sides of the front of each set of brackets (6), and one end of the locking plate (10) is fixed on the auxiliary frame (8). T-shaped snap-fit ​​posts (12) are inserted on each set of limiting plates (9). One end of the T-shaped snap-fit ​​post (12) passes through the bracket (6) and the locking plate (10) and extends toward the rotary joint body (1). A spring (13) is wound on each set of T-shaped snap-fit ​​posts (12). The two ends of the spring (13) are fixed on the protruding end of the T-shaped snap-fit ​​post (12) and the limiting plate (9).

3. A multi-channel hydraulic rotary joint as described in claim 2, characterized in that: Auxiliary slides (15) are provided on the outer side of the front of the two adjacent sets of auxiliary frames (8). Sliding frames (14) are slidably arranged in the two adjacent sets of auxiliary slides (15). The two ends of the sliding frames (14) away from the rotary joint body (1) are respectively fixed on the corresponding T-shaped snap-fit ​​posts (12).

4. A multi-channel hydraulic rotary joint as described in claim 3, characterized in that: A gap is reserved between the front of the inner cavity of the sliding frame (14) and the connecting pipe (2).

5. A multi-channel hydraulic rotary joint as described in claim 2, characterized in that: The locking plate (10) has a chamfer at the end away from the auxiliary frame (8).

6. A multi-channel hydraulic rotary joint as described in claim 2, characterized in that: Two sets of U-shaped reinforcing frames (16) are fixed sequentially on the front of the two adjacent sets of auxiliary frames (8) along the vertical direction.

7. A multi-channel hydraulic rotary joint as described in claim 1, characterized in that: Each set of fixed pipes (3) is fixed with a base plate (5), and the side of the base plate (5) away from the connecting pipe (2) is attached to the rotary joint body (1).

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