Ventilation and water supply rotary joint

Abstract

The utility model discloses a ventilating and water-passing rotary joint, which belongs to the technical field of rotary joints and comprises a rotary joint main body and a rotating shaft embedded in the rotary joint main body, and a quick plug is sleeved on the side wall of the rotating shaft. The two ends of the rotating shaft are sleeved with supporting bearings connected with the inner wall of the rotating connector body, a plurality of combined sealing rings connected with the rotating shaft are fixedly embedded in the rotating connector body, a water supply pipe is embedded in the quick-connection plug in an inserted mode, and a positioning rod connected with the quick-connection plug in a clamped mode is elastically arranged on the outer wall of the water supply pipe. A threaded connecting part is arranged at one end of the rotary joint body, a sealing end cover is installed at the other end of the rotary joint body, the ventilation and water passing rotary joint keeps sealing with the rotary shaft through the combined sealing ring, and dust in the environment is blocked through the combined sealing ring, the sealing end cover, the dustproof protrusion and the sealing gasket. And the dustproof effect of the knob structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rotary joint, concretely relates to a ventilation and water rotation joint. BACKGROUND

[0002] Rotary joint is a kind of connecting and sealing device for fluid medium from stationary pipeline to rotating or reciprocating equipment, to provide heating or cooling medium for the mechanism of rotary motion. Some rotary joints need to be used in the environment full of dust, which has high requirements for the dustproof performance of rotary joint. The existing rotary joint usually focuses on sealing, but the dustproof performance is poor. SUMMARY

[0003] (1) technical problem to be solved

[0004] In view of the deficiency of prior art, the utility model aims at providing a ventilation and water rotation joint, which aims to solve the technical problem that the existing rotary joint needs to be used in the environment full of dust, which has high requirements for the dustproof performance of rotary joint. The existing rotary joint usually focuses on sealing, but the dustproof performance is poor.

[0005] (2) technical scheme

[0006] In order to solve the above technical problem, the utility model provides a ventilation and water rotation joint, which comprises a rotary joint main body and a rotary shaft embedded in the rotary joint main body. The side wall of the rotary shaft is provided with a quick connector, and the two ends of the rotary shaft are provided with support bearings connected with the inner wall of the rotary joint main body. A plurality of combination sealing rings connected with the rotary shaft are embedded and fixed in the rotary joint main body. A water supply pipe is embedded and connected in the quick connector. The outer wall of the water supply pipe is elastically provided with a positioning rod clamped with the quick connector.

[0007] When the technical scheme is used, the rotary shaft is installed in the rotary joint main body, and the rotary shaft rotates in the rotary joint main body through two support shafts. The thrust bearing can ensure that the rotary shaft can rotate normally after being pressed. At the same time, the rotary joint main body keeps sealing between the rotary shaft and the combination sealing ring, and the combination sealing ring, the sealing end cover, the dustproof convex and the sealing pad block the dust in the environment, improving the dustproof effect of the rotary knob structure. The water supply pipe is installed in the quick connector and inserted into the containing hole. The water supply pipe is tightly connected with the sealing pad of the rotary shaft side wall, and the spring in the telescopic hole pushes the positioning rod into the through hole to keep fixed. When the water supply pipe is disassembled, the positioning rod is extruded and removed from the through hole, improving the convenience of water supply pipe installation and disassembly.

[0008] Preferably, one end of the rotary joint body is provided with a threaded connection part, and the other end of the rotary joint body is provided with a sealing end cover.

[0009] Further, the side wall of the sealing end cover is provided with a plurality of bolts in an annular array, which are screwed into the rotary joint body.

[0010] Still further, the rotary joint body is provided with a thrust bearing embedded therein and sleeved on the rotary shaft, the inner wall of the quick connector is provided with a dustproof protrusion embedded in the rotary shaft, and the side wall of the rotary shaft is provided with a sealing gasket.

[0011] Still further, the side wall of the quick connector is provided with a receiving hole for accommodating the water supply pipe, and the outer wall of the quick connector is provided with a through hole in an annular array and communicating with the receiving hole.

[0012] Still further, the outer wall of the water supply pipe is provided with a plurality of telescopic holes in an annular array, and the positioning rod is slidably inserted into the telescopic hole.

[0013] Still further, the telescopic hole is provided with a spring embedded therein, and the positioning rod abuts against the inner wall of the telescopic hole.

[0014] (3)Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model discloses a rotary joint body is provided with a rotary shaft embedded therein, the rotary shaft rotates in the rotary joint body through two support shafts, the thrust bearing can guarantee that the rotary shaft still can rotate normally after being pressed, the rotary joint body keeps sealing between the combination sealing ring and the rotary shaft simultaneously, and the combination sealing ring, the sealing end cover, the dustproof protrusion and the sealing gasket block the dust in the environment, improve the dustproof effect of the knob structure.

[0017] The water supply pipe is inserted into the receiving hole during installation, and the water supply pipe is tightly connected with the sealing gasket on the side wall of the rotary shaft, and the spring in the telescopic hole pushes the positioning rod to be inserted into the through hole to be fixed, and the positioning rod is extruded to move out of the through hole when the water supply pipe is disassembled, so that the convenience of installation and disassembly of the water supply pipe is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a structural schematic view of the utility model;

[0020] Figure 2 is a split structural schematic view of the utility model;

[0021] Figure 3 is a sectional view structural schematic view of the utility joint main body in the utility model;

[0022] Figure 4 is a sectional view structural schematic view of the water supply pipe in the utility model.

[0023] The marks in the drawing are: 1, utility joint main body; 2, threaded connection part; 3, sealing end cover; 4, water supply pipe; 5, quick connector; 6, bolt; 7, through hole; 8, containing hole; 9, combined sealing ring; 10, support bearing; 11, rotating shaft; 12, thrust bearing; 13, dust bump; 14, sealing pad; 15, positioning rod; 16, spring; 17, telescopic hole. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] The specific embodiment is a ventilation and water rotation joint, and its structural schematic view is shown in Figure 1 and Figure 2 The ventilation and water rotation joint includes a utility joint main body 1 and a rotating shaft 11 inlaid in the utility joint main body 1. The side wall of the rotating shaft 11 is sleeved with a quick connector 5, and both ends of the rotating shaft 11 are sleeved with support bearings 10 connected with the inner wall of the utility joint main body 1. A plurality of combined sealing rings 9 connected with the rotating shaft 11 are inlaid and fixed in the utility joint main body 1. A water supply pipe 4 is inlaid and connected in the quick connector 5. The outer wall of the water supply pipe 4 is elastically provided with a positioning rod 15 clamped with the quick connector 5.

[0026] One end of the rotary joint body 1 is provided with a threaded connection part 2, and the other end of the rotary joint body 1 is provided with a sealing end cover 3, a plurality of bolts 6 are arranged in an annular array on the side wall of the sealing end cover 3, the bolts 6 are screwed into the rotary joint body 1, a thrust bearing 12 is embedded in the rotary joint body 1 and sleeved on the rotating shaft 11, a dustproof protrusion 13 is embedded in the rotating shaft 11 and fixed to the inner wall of the quick connector 5, a sealing gasket 14 is arranged on the side wall of the rotating shaft 11, and the rotating shaft 11 rotates in the rotary joint body 1 through two supporting shafts. The thrust bearing 12 can ensure that the rotating shaft 11 can normally rotate after being pressed, and the rotary joint body 1 is sealed between the combined sealing ring 9 and the rotating shaft 11, and the dust in the environment is blocked by the combined sealing ring 9, the sealing end cover 3, the dustproof protrusion 13 and the sealing gasket 14.

[0027] As shown in Figure 3 and Figure 4 , the side wall of the quick connector 5 is provided with a containing hole 8 for containing the water supply pipe 4, and the outer wall of the quick connector 5 is provided with a plurality of through holes 7 in an annular array and in communication with the containing hole 8, the outer wall of the water supply pipe 4 is provided with a plurality of expansion holes 17 in an annular array, a positioning rod 15 is slidingly inserted into the expansion hole 17, a spring 16 is embedded in the expansion hole 17, and the positioning rod 15 abuts against the inner wall of the expansion hole 17. When the water supply pipe 4 is installed, it is inserted into the containing hole 8, and the water supply pipe 4 is tightly connected with the sealing gasket 14 on the side wall of the rotating shaft 11, and at the same time the spring 16 in the expansion hole 17 pushes the positioning rod 15 to be inserted into the through hole 7 and fixed, and when the water supply pipe 4 is disassembled, the positioning rod 15 is extruded and removed from the through hole 7

[0028] Working principle: when the device of the technical scheme is used, the rotating shaft 11 rotates in the rotary joint body 1 through two supporting shafts, the thrust bearing 12 can ensure that the rotating shaft 11 can normally rotate after being pressed, and the rotary joint body 1 is sealed between the combined sealing ring 9 and the rotating shaft 11, and the dust in the environment is blocked by the combined sealing ring 9, the sealing end cover 3, the dustproof protrusion 13 and the sealing gasket 14, and when the water supply pipe 4 is installed, it is inserted into the containing hole 8, and the water supply pipe 4 is tightly connected with the sealing gasket 14 on the side wall of the rotating shaft 11, and at the same time the spring 16 in the expansion hole 17 pushes the positioning rod 15 to be inserted into the through hole 7 and fixed, and when the water supply pipe 4 is disassembled, the positioning rod 15 is extruded and removed from the through hole 7, which improves the convenience of installation and disassembly of the water supply pipe 4.

[0029] All the technical features in the embodiment can be freely combined according to actual needs.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A rotary joint for ventilation and water supply, comprising a rotary joint body (1) and a rotary shaft (11) which is embedded in the rotary joint body (1), characterized in that, The side wall of the rotating shaft (11) is sleeved with a quick connector (5), both ends of the rotating shaft (11) are sleeved with a support bearing (10) connected with the inner wall of the rotating connector body (1), a plurality of combined sealing rings (9) connected with the rotating shaft (11) are fixedly arranged in the rotating connector body (1), a water supply pipe (4) is inserted in the quick connector (5), and the outer wall of the water supply pipe (4) is elastically provided with a positioning rod (15) clamped with the quick connector (5).

2. A through-water and air swivel according to claim 1, characterized in that One end of the rotating connector body (1) is provided with a threaded connection part (2), and the other end of the rotating connector body (1) is provided with a sealing end cover (3).

3. A through-water and air swivel according to claim 2, characterised in that A plurality of bolts (6) are arranged in an annular array on the side wall of the sealing end cover (3), and the bolts (6) are threaded into the rotating connector body (1).

4. A through-water and air swivel according to claim 1, characterized in that A thrust bearing (12) sleeved on the rotating shaft (11) is arranged in the rotating connector body (1), a dustproof protrusion (13) embedded in the rotating shaft (11) is fixed to the inner wall of the quick connector (5), and a sealing gasket (14) is arranged on the side wall of the rotating shaft (11).

5. A water and air rotary union according to claim 1, wherein, A containing hole (8) for containing the water supply pipe (4) is formed in the side wall of the quick connector (5), and a through hole (7) in annular array is formed in the outer wall of the quick connector (5) and communicates with the containing hole (8).

6. A water and air rotary union according to claim 1, wherein, A plurality of expansion holes (17) are formed in an annular array on the outer wall of the water supply pipe (4), and the positioning rod (15) is slidingly inserted into the expansion hole (17).

7. A through-water and air swivel according to claim 6, characterised in that A spring (16) is embedded in the expansion hole (17), and the positioning rod (15) abuts against the inner wall of the expansion hole (17).

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