Right-angle bidirectional rotary joint

Abstract

The utility model discloses a right-angle bidirectional rotary joint, and relates to the technical field of adjustable connection. A right-angle bidirectional rotating joint comprises a right-angle connecting pipe, mounting pipes are fixedly connected to the two sides of the right-angle connecting pipe, a liquid injection assembly is located on the corresponding mounting pipe and comprises a liquid injection pipe, a sealing plug, a telescopic sleeve, four fixing rods and a spring, and the liquid injection pipe is fixedly connected to the corresponding mounting pipe; a liquid injection hole is formed in the portion, close to the liquid injection pipe, of the mounting pipe, and through cooperation of the liquid injection pipe, the spring, the sealing plug, the four fixing rods and the telescopic sleeve, lubricating oil can be injected only by pressing the sealing plug downwards, so that the lubricating oil can be discharged into the positioning groove from the liquid injection pipe, and therefore the rotating ball in the positioning groove can be lubricated conveniently; and the sealing plug can be automatically reset under the support of the spring, so that the liquid injection pipe can be conveniently sealed, the lubricating oil can be conveniently and quickly injected, and the convenience and the high efficiency of the lubricating oil during injection are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of adjustable connections, in particular to a right-angle bidirectional rotary joint. Background Art

[0002] In existing mechanical and fluid transmission systems, right-angle bidirectional rotary joints play an important role. They not only allow fluids to flow freely in right-angle directions, but also withstand certain rotational motions, making the fluid transmission system more flexible and adaptable. During long-term use, due to friction and wear, rotary joints may experience performance degradation, leakage and other problems.

[0003] During the use of the existing right-angle two-way rotary joint, lubricating oil is required to ensure the sliding effect inside the right-angle two-way rotary joint. The lubricating oil can effectively reduce the friction and wear inside the rotary joint. At present, when the right-angle two-way rotary joint is filled with lubricating oil, the interface for filling the lubricating oil generally requires special tools to open it for filling, which makes the filling of the lubricating oil often not convenient and efficient. Therefore, we propose a right-angle two-way rotary joint. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a right-angle bidirectional rotary joint, which can solve the problem that when filling lubricating oil with the current right-angle bidirectional rotary joint, the interface for filling lubricating oil generally requires special tools to open it for filling, which leads to the problem that the filling of lubricating oil is often not convenient and efficient.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a right-angle bidirectional rotary joint, comprising:

[0006] A right-angle connecting pipe, both sides of which are fixedly connected with mounting pipes;

[0007] A liquid injection assembly, the liquid injection assembly is located on a corresponding mounting tube;

[0008] The liquid injection assembly includes a liquid injection tube, a sealing plug, a telescopic sleeve, four fixed rods and a spring. The liquid injection tube is fixedly connected to the corresponding mounting tube. An injection hole is provided on the mounting tube close to the liquid injection tube. The liquid injection tube is communicated with the interior of the liquid injection hole. The four fixed rods are all fixedly connected to the interior of the liquid injection hole. The telescopic sleeve is fixedly connected to the four fixed rods. The sealing plug is fixedly connected to the top of the telescopic sleeve. The spring is fixedly connected to the inner bottom wall of the telescopic sleeve. The top end of the spring is fixedly connected to the sealing plug. The sealing plug is adapted to the liquid inlet on the liquid injection tube. A hinged sealing cover is provided on the liquid injection tube.

[0009] Preferably, the number of the liquid injection components is two, and the two liquid injection components are respectively arranged on two mounting tubes.

[0010] Preferably, the inner walls of the two mounting tubes are provided with limiting slide grooves and positioning grooves, the interiors of the two limiting slide grooves are slidably connected with limiting slip rings, the outer surfaces of the two limiting slip rings are installed with rotating balls, and the two rotating balls are respectively located in the corresponding positioning grooves.

[0011] Preferably, the two limiting slip rings are fixedly connected to a rotating connecting sleeve on one side away from the right-angle connecting tube, and the two rotating connecting sleeves are fixedly connected to a threaded connecting tube on one side away from the corresponding limiting slip ring.

[0012] Preferably, the inner walls of the two limit slip rings are fixedly connected with connecting rings, the outer surfaces of the two connecting rings are fixedly connected with sealing rings, and the outer surfaces of the two sealing rings are in contact with the inner walls of the corresponding mounting tubes.

[0013] Preferably, the two injection holes are both connected to the interior of the corresponding positioning groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The right-angle bidirectional rotary joint, through the cooperation of the injection pipe, the spring, the sealing plug, the four fixing rods and the telescopic sleeve, can be filled with lubricating oil by simply pressing down the sealing plug, so that the lubricating oil can be discharged from the injection pipe into the positioning groove, thereby facilitating the lubrication of the rotating ball in the positioning groove, and the sealing plug can automatically reset under the support of the spring, thereby facilitating the sealing of the injection pipe, and then facilitating the rapid filling of lubricating oil, further improving the convenience and efficiency of the lubricating oil filling.

[0016] (2) The right-angle bidirectional rotary joint is provided with a sealing ring so that the sealing ring can seal the limit slip ring to prevent liquid from flowing into the limit slip ring and affecting the normal sliding of the limit slip ring, thereby ensuring the sliding effect of the threaded connection pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the threaded connection of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation pipe of the utility model;

[0021] Figure 4 This is a schematic diagram of the threaded connection pipe structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the telescopic sleeve of the utility model;

[0023] Figure 6 For the utility model Figure 3 Schematic diagram of the structure at A in the middle.

[0024] Figure numerals: 1. right-angle connecting pipe; 2. mounting pipe; 3. rotating connecting sleeve; 4. threaded connecting pipe; 5. liquid injection pipe; 6. limiting sliding ring; 7. sealing ring; 8. connecting ring; 9. liquid injection hole; 10. limiting sliding groove; 11. positioning groove; 12. rotating ball; 13. sealing plug; 14. spring; 15. telescopic sleeve; 16. fixing rod. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 present invention.

[0027] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] See also Figure 1-6 The utility model provides a technical solution: a right-angle bidirectional rotary joint, comprising:

[0030] A right-angle connecting pipe 1, both sides of which are fixedly connected with mounting pipes 2;

[0031] A liquid injection component, the liquid injection component is located on the corresponding mounting tube 2;

[0032] The liquid injection assembly includes a liquid injection tube 5, a sealing plug 13, a telescopic sleeve 15, four fixed rods 16 and a spring 14. The liquid injection tube 5 is fixedly connected to the corresponding mounting tube 2. A liquid injection hole 9 is provided on the mounting tube 2 near the liquid injection tube 5. The liquid injection tube 5 is communicated with the interior of the liquid injection hole 9. The four fixed rods 16 are all fixedly connected to the interior of the liquid injection hole 9. The telescopic sleeve 15 is fixedly connected to the four fixed rods 16. The sealing plug 13 is fixedly connected to the top of the telescopic sleeve 15. The spring 14 is fixedly connected to the inner bottom wall of the telescopic sleeve 15. The top end of the spring 14 is fixedly connected to the sealing plug 13. The sealing plug 13 is adapted to the liquid inlet on the liquid injection tube 5. A hinged sealing cover is provided on the liquid injection tube 5.

[0033] There are two liquid injection assemblies, and the two liquid injection assemblies are respectively arranged on the two mounting pipes 2 .

[0034] The inner walls of the two mounting tubes 2 are provided with limit slide grooves 10 and positioning grooves 11. The interiors of the two limit slide grooves 10 are slidably connected with limit slip rings 6. The outer surfaces of the two limit slip rings 6 are installed with rotating balls 12. The two rotating balls 12 are respectively located in the corresponding positioning grooves 11. The two limit slip rings 6 are fixedly connected with a rotating connecting sleeve 3 on one side away from the right-angle connecting tube 1. The two rotating connecting sleeves 3 are fixedly connected with a threaded connecting tube 4 on one side away from the corresponding limit slip ring 6. The inner walls of the two limit slip rings 6 are fixedly connected with connecting rings 8. The outer surfaces of the two connecting rings 8 are fixedly connected with sealing rings 7. The outer surfaces of the two sealing rings 7 are in contact with the inner walls of the corresponding mounting tubes 2. The two injection holes 9 are connected to the inside of the corresponding positioning grooves 11.

[0035] Furthermore, when using the device, the user opens the sealing cover on the injection tube 5, and then inserts the lubricating oil filling nozzle from the injection tube 5 into the interior of the injection tube 5. The lubricating oil filling nozzle will squeeze the sealing plug 13, causing the sealing plug 13 to move downward. The downward movement of the sealing plug 13 will drive the telescopic sleeve 15 to contract and compress the spring 14. Therefore, after the sealing plug 13 is away from the top of the injection tube 5, the lubricating oil filling nozzle will discharge the lubricating oil from the injection tube 5 into the positioning groove 11, thereby facilitating the lubrication of the rotating ball 12 in the positioning groove 11, thereby ensuring the sliding effect of the rotation of the right-angle connecting tube 1. Therefore, after the lubricating oil is filled, it is only necessary to pull the lubricating oil filling nozzle out of the injection tube 5, so that the sealing plug 13 will be reset under the support of the spring 14 and the liquid inlet of the injection tube 5 will be sealed. The working principles of the two injection components are the same.

[0036] With the cooperation of the injection tube 5, the spring 14, the sealing plug 13, the four fixing rods 16 and the telescopic sleeve 15, the lubricating oil can be added by simply pressing down the sealing plug 13, so that the lubricating oil can be discharged from the injection tube 5 into the positioning groove 11, thereby facilitating the lubrication of the rotating ball 12 in the positioning groove 11, and the sealing plug 13 can automatically reset under the support of the spring 14, thereby facilitating the sealing of the injection tube 5, and then facilitating the rapid addition of the lubricating oil, further improving the convenience and efficiency of the lubricating oil during the addition.

[0037] The sealing ring 7 is provided so that the sealing ring 7 can seal the limiting slip ring 6 to prevent liquid from flowing into the limiting slip ring 6 and affecting the normal sliding of the limiting slip ring 6, thereby ensuring the sliding effect of the threaded connecting pipe 4.

[0038] Working principle: the user opens the sealing cover on the injection tube 5, and then inserts the lubricating oil filling nozzle from the injection tube 5 into the interior of the injection tube 5. The lubricating oil filling nozzle will squeeze the sealing plug 13, so that the sealing plug 13 moves downward. The downward movement of the sealing plug 13 will drive the telescopic sleeve 15 to contract and compress the spring 14. After the sealing plug 13 is away from the top of the injection tube 5, the lubricating oil filling nozzle will discharge the lubricating oil from the injection tube 5 into the positioning groove 11, so as to facilitate the lubrication of the rotating ball 12 in the positioning groove 11, thereby ensuring the sliding effect of the rotation of the right-angle connecting tube 1.

[0039] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A right-angle bidirectional rotary joint, characterized in that: include: A right-angle connecting pipe (1), both sides of which are fixedly connected with mounting pipes (2); A liquid injection assembly, the liquid injection assembly being located on a corresponding mounting tube (2); The liquid injection assembly comprises a liquid injection pipe (5), a sealing plug (13), a telescopic sleeve (15), four fixing rods (16) and a spring (14); the liquid injection pipe (5) is fixedly connected to the corresponding mounting pipe (2); a liquid injection hole (9) is provided on the mounting pipe (2) close to the liquid injection pipe (5); the liquid injection pipe (5) is communicated with the inside of the liquid injection hole (9); and the four fixing rods (16) are fixedly connected to the inside of the liquid injection hole (9); The telescopic sleeve (15) is fixedly connected to four fixing rods (16), and the sealing plug (13) is fixedly connected to the top of the telescopic sleeve (15); The spring (14) is fixedly connected to the inner bottom wall of the telescopic sleeve (15), and the top end of the spring (14) is fixedly connected to the sealing plug (13); The sealing plug (13) is adapted to the liquid inlet on the liquid injection tube (5), and a sealing cover is hingedly provided on the liquid injection tube (5).

2. A right-angle bidirectional rotary joint according to claim 1, characterized in that: The number of the liquid injection components is two, and the two liquid injection components are respectively arranged on two mounting tubes (2).

3. A right-angle bidirectional rotary joint according to claim 1, characterized in that: The inner walls of the two installation tubes (2) are provided with a limit sliding groove (10) and a positioning groove (11), and the interiors of the two limit sliding grooves (10) are slidably connected to a limit sliding ring (6); The outer surfaces of the two limiting sliding rings (6) are both mounted with rotating balls (12), and the two rotating balls (12) are respectively located in corresponding positioning grooves (11).

4. A right-angle bidirectional rotary joint according to claim 3, characterized in that: The two limiting slip rings (6) are fixedly connected to a rotating connection sleeve (3) on one side away from the right-angle connecting pipe (1), and the two rotating connection sleeves (3) are fixedly connected to a threaded connecting pipe (4) on one side away from the corresponding limiting slip rings (6).

5. A right-angle bidirectional rotary joint according to claim 3, characterized in that: The inner walls of the two limit slip rings (6) are fixedly connected to connecting rings (8), the outer surfaces of the two connecting rings (8) are fixedly connected to sealing rings (7), and the outer surfaces of the two sealing rings (7) are in contact with the inner walls of the corresponding mounting tubes (2).

6. A right-angle bidirectional rotary joint according to claim 3, characterized in that: The two injection holes (9) are both connected to the interior of the corresponding positioning groove (11).

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