High-pressure rotating joint and spraying device
By designing a high-pressure rotary joint and spray device, and adopting a skeleton oil seal and seepage manifold structure, the sealing problem of the rotary joint under high water pressure was solved, and the reliability and water pressure adaptability of the rotary spray under high pressure were realized.
Patent Information
- Application Number
- CN202422912064.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing rotary joints cannot withstand high water pressure, leading to damage and cleaning fluid leakage, reducing spray water pressure and increasing maintenance costs.
A high-pressure rotary joint was designed, which uses a skeleton oil seal as the sealing element and receives the seeping cleaning fluid through the first seepage collection cavity and the second seepage collection cavity, thereby improving the sealing performance and water pressure adaptability.
This improved the high-pressure resistance and reliability of the rotary spray device, ensured the stability of the rotary spray, and reduced the waste of cleaning fluid.
Smart Images
Figure CN223717481U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a cleaning machine field especially relates to a high pressure swivel joint and spray device. BACKGROUND
[0002] In order to carry out the rotation spray cleaning, can utilize the mandrel and drive the rotation of the spray pipe, and utilize the swivel joint to be the mandrel access liquid supply pipeline, does not influence the rotation of the mandrel, and can realize the rotation liquid supply of the spray pipe.
[0003] Part of the cleaning machine to the water pressure requirement of spraying is higher, and the working pressure requirement is 1.5MPA, and the actual instantaneous pressure can be as high as 2MPA. The ordinary swivel joint cannot adapt to such high water pressure, is easy to cause the damage of swivel joint and the leakage of a large amount of cleaning liquid, increases the maintenance cost, reduces the actual spray water pressure, needs to be improved. UTILITY MODEL CONTENTS
[0004] The utility model mainly solves the technical problem to provide a kind of high pressure swivel joint and spray device, improve the adaptability to water pressure, ensure the rotation spray reliability.
[0005] To solve the above technical problems, one technical scheme of the utility model is: provide a kind of high pressure swivel joint, comprising: first fixed seat, second fixed seat, mandrel and connecting sleeve, the first fixed seat is set in the bottom of connecting sleeve, the second fixed seat is set in the top of connecting sleeve, the mandrel is set in first fixed seat, and extend in turn through connecting sleeve and second fixed seat, one side of the connecting sleeve is provided with liquid inlet pipe joint, the outer end of the mandrel is recessed and provided with blind hole extending to the area of connecting sleeve, the outer circle of the mandrel is provided with the flow guide hole that is communicated with blind hole and the inner chamber of connecting sleeve, first insert is provided in the first fixed seat, the first insert is provided with the first insertion hole corresponding to the mandrel, the first insertion hole is provided with the first sealing member sleeved on the mandrel, the first insertion hole is communicated with the first liquid seepage confluence chamber located below the first sealing member, one side of the first insert is provided with the first liquid seepage discharge pipe communicated with the first liquid seepage confluence chamber, second insert is provided in the second fixed seat, the second insert is provided with the second insertion hole corresponding to the mandrel, the second insertion hole is provided with the second sealing member sleeved on the mandrel, the second insertion hole is communicated with the second liquid seepage confluence chamber located above the second sealing member, one side of the second insert is provided with the second liquid seepage discharge pipe communicated with the second liquid seepage confluence chamber.
[0006] In a preferred embodiment of the utility model, the first sealing member and the second sealing member are respectively made of skeleton oil seal.
[0007] In a preferred embodiment of the utility model, the first insert top surface is in contact with the inner wall of the first fixed seat to form a first sealing surface, the first insert top is provided with a first O-shaped sealing ring and a second O-shaped sealing ring located on the first sealing surface, the first O-shaped sealing ring and the second O-shaped sealing ring are concentric with the first jack, and the first O-shaped sealing ring is located on the outside of the second O-shaped sealing ring.
[0008] In a preferred embodiment of the utility model, the first insert top surface is concave and is provided with a first seepage hole located between the first O-shaped sealing ring and the second O-shaped sealing ring and communicating with the first liquid seepage collecting cavity.
[0009] In a preferred embodiment of the utility model, the second insert bottom surface is in contact with the inner wall of the second fixed seat to form a second sealing surface, the second insert bottom is provided with a third O-shaped sealing ring and a fourth O-shaped sealing ring located on the second sealing surface, the third O-shaped sealing ring and the fourth O-shaped sealing ring are concentric with the second jack, and the third O-shaped sealing ring is located on the outside of the fourth O-shaped sealing ring.
[0010] In a preferred embodiment of the utility model, the second insert bottom surface is concave and is provided with a second seepage hole located between the third O-shaped sealing ring and the fourth O-shaped sealing ring and communicating with the second liquid seepage collecting cavity.
[0011] In a preferred embodiment of the utility model, the first jack is provided with a fifth O-shaped sealing ring located below the first liquid seepage collecting cavity and a first bearing located below the fifth O-shaped sealing ring.
[0012] In a preferred embodiment of the utility model, the second jack is provided with a sixth O-shaped sealing ring located above the second liquid seepage collecting cavity and a second bearing located above the sixth O-shaped sealing ring.
[0013] To solve the above technical problems, the utility model adopts one technical scheme of providing a spraying device, which comprises a spraying pipe and the high-pressure rotary joint.
[0014] In a preferred embodiment of the utility model, a speed reducer is further included, the speed reducer is arranged at the bottom of the first fixed seat, the output shaft of the speed reducer is connected with the bottom of the mandrel, the spraying pipe is provided with nozzles at intervals, the spraying pipe is provided with a liquid outlet pipe joint, the outer end of the mandrel is provided with a first flange, and the liquid outlet pipe joint is provided with a second flange connected with the first flange.
[0015] The utility model discloses a beneficial effect is: the utility model discloses a kind of high-pressure rotary joint and spraying device, sealing in the core shaft rotation process is carried out using the cooperation of first sealing element and second sealing element, improve high-pressure performance, and first liquid-permeable convergence cavity and second liquid-permeable convergence cavity are specially designed, can receive the small amount of cleaning fluid that seeps out, improve the adaptability to water pressure, compact structure, high stability, ensure that rotating spraying reliability. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, wherein:
[0017] Figure 1 It is a structure schematic diagram of a preferred embodiment of the utility model high-pressure rotary joint and spraying device;
[0018] Figure 2 It is Figure 1 the local enlarged view of A part in
[0019] Figure 3 It is Figure 1 the local enlarged view of B part in DETAILED DESCRIPTION
[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below, 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 belong to the scope of protection of the utility model.
[0021] Please refer to Figures 1-3 , the utility model embodiment includes:
[0022] As Figure 1 Indicated, high-pressure rotary joint includes: first fixed seat 1, second fixed seat 2, mandrel 5 and connecting sleeve 3, first fixed seat 1 is arranged at the bottom of connecting sleeve 3, second fixed seat 2 is arranged at the top of connecting sleeve 3, the top and bottom in the present application are opposite, just to facilitate description and relative position limit. Connecting sleeve 3 can be welded and fixed between first fixed seat 1 and second fixed seat 2, structure is firm, and sealing performance is good at connecting place.
[0023] The mandrel 5 is placed in the first fixed seat 1 and extends through the connecting sleeve and the second fixed seat 2 in sequence. A liquid inlet pipe connector 4 is provided on one side of the connecting sleeve 3. The liquid inlet pipe connector 4 is connected to an external liquid pump to introduce high-pressure water flow into the connecting sleeve 3.
[0024] A blind hole 24 extending to the area where the connecting sleeve 3 is located is recessed at the outer end of the mandrel 5. Figure 3 As shown, a guide hole 6 is provided on the outer circle of the mandrel, which connects the blind hole 24 and the inner cavity of the connecting sleeve. The high-pressure water flow in the connecting sleeve 3 enters the blind hole 24 through the guide hole 6, which facilitates the discharge and spraying without affecting the rotation of the mandrel 5.
[0025] A first insert 15 is provided in the first fixed base 1. The first insert 15 and the first fixed base 1 can be fixed with screws, which makes the structure sturdy and easy to disassemble and assemble. The first insert 15 is provided with a first insertion hole 16 corresponding to the mandrel 5, which is beneficial to the assembly of the mandrel 5.
[0026] like Figure 2 As shown, a first sealing element 20 is provided at the end of the first insertion hole 16 near the connecting sleeve, which is sleeved on the spindle 5 to seal the spindle 5 during rotation and prevent the high-pressure water in the connecting sleeve 3 from flowing downward.
[0027] A first seepage collection chamber 17 is provided in the first insert 15, located below the first seal 20 and communicating with the first insertion hole 16. The first seepage collection chamber 17 can receive a small amount of cleaning fluid seeping from the first seal 20, improving its adaptability to water pressure. A first seepage discharge pipe 8 is provided on one side of the first insert 15, communicating with the first seepage collection chamber 17. The first seepage discharge pipe 8 can drain the water in the first seepage collection chamber 17 for secondary use, avoiding waste.
[0028] A second insert 28 is provided in the second fixing seat 2, such as Figure 3 As shown, the second insert 28 is fixed to the second fixed base 2 with screws, making disassembly and assembly convenient. The second insert 28 is provided with a second insertion hole 29 corresponding to the spindle 5, which facilitates assembly. A second sealing element 27 is provided at one end of the second insertion hole 29 near the connecting sleeve 3, which is sleeved on the spindle 5. In this embodiment, the first sealing element 20 and the second sealing element 27 are respectively skeleton oil seals, which have good sealing effect and do not affect the rotation of the spindle 5.
[0029] A second seepage collection chamber 32 is provided in the second insert 28, located above the second seal 27 and communicating with the second insertion hole 29. The second seepage collection chamber 32 can receive a small amount of cleaning fluid seeping from the second seal 27, improving its adaptability to water pressure. A second seepage discharge pipe 7 is provided on one side of the second insert 28, communicating with the second seepage collection chamber 32. The second seepage discharge pipe 7 can drain the water flow in the second seepage collection chamber 32 for centralized treatment or secondary use.
[0030] like Figure 2 As shown, the top surface of the first insert 15 contacts the inner wall of the first fixed seat 1 to form a first sealing surface. The top of the first insert 15 is provided with a first O-ring 21 and a second O-ring 23 located on the first sealing surface, which provides double sealing and good high pressure resistance.
[0031] In this embodiment, the first O-ring 21 and the second O-ring 23 are concentric with the first insertion hole 16, and the first O-ring 21 is located outside the second O-ring 23. A first seepage hole 22 is recessed on the top surface of the first insert 15, located between the first O-ring 21 and the second O-ring 23 and communicating with the first seepage collection cavity 17. Seepage between the first O-ring 21 and the second O-ring 23 enters the first seepage collection cavity 17 through the first seepage hole 22, reducing the working pressure of the first O-ring 21.
[0032] like Figure 3 As shown, the bottom surface of the second insert 28 contacts the inner wall of the second fixing seat 2 to form a second sealing surface. The bottom of the second insert 28 is provided with a third O-ring 25 and a fourth O-ring 26 located on the second sealing surface. The third O-ring 25 and the fourth O-ring 26 are concentric with the second insertion hole, and the third O-ring 25 is located outside the fourth O-ring 26 to achieve double sealing.
[0033] In this embodiment, the bottom surface of the second insert 28 is recessed and provided with a second seepage hole 33 located between the third O-ring 25 and the fourth O-ring 26 and communicating with the second seepage collection cavity 32. The liquid between the third O-ring 25 and the fourth O-ring 26 enters the second seepage collection cavity 32 through the second seepage hole 33, thereby reducing the working pressure of the third O-ring 25.
[0034] Furthermore, a fifth O-ring seal 19 is provided in the first insertion hole 16 below the first seepage collection cavity 17, and a first bearing 18 is provided below the fifth O-ring seal 19. The fifth O-ring seal 19 prevents downward leakage from the first seepage collection cavity 17. In this embodiment, the first bearing 18 is a thrust bearing, which provides axial support for the spindle 5.
[0035] A sixth O-ring 31 is provided in the second insertion hole 29 above the second seepage confluence cavity, and a second bearing 30 is provided above the sixth O-ring 31. The second bearing 30 is a ball bearing, which improves the rotational stability of the spindle 5.
[0036] like Figure 1The spraying device comprises a speed reducer 9, a spraying pipe 10 and the high-pressure rotary joint, the spraying pipe 10 is horizontally arranged at the top end of the mandrel 5 and rotates to spray, the speed reducer 9 is arranged at the bottom of the first fixed seat 1, and the output shaft of the speed reducer 9 is connected with the bottom of the mandrel 5 to drive the mandrel 5 to rotate.
[0037] A liquid outlet pipe joint 12 extending downward is vertically arranged at the middle of the spraying pipe 10, the outer end of the mandrel 5 is provided with a first flange 14, the liquid outlet pipe joint 12 is provided with a second flange 13 connected with the first flange 14, and the second flange 13 is locked by a screw, so that the structure is reliable. The high-pressure water flow in the blind hole 24 is guided into the spraying pipe 10 through the liquid outlet pipe joint 12, the spraying pipe 10 is provided with nozzles 11 at intervals to spray from multiple points.
[0038] In conclusion, the high-pressure rotary joint and the spraying device can rotate to spray high-pressure water flow, and the structure is reliable.
[0039] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures or equivalent process transformations made by using the utility model specification content, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.
Claims
1. A high pressure rotary union, characterized by, The utility model relates to a high pressure rotary joint, which comprises a first fixed seat, a second fixed seat, a mandrel and a connecting sleeve. The first seal and the second seal are respectively a skeleton oil seal.
2. The high-pressure rotary joint according to claim 1, characterized in that The top surface of the first insert is in contact with the inner wall of the first fixed seat to form a first sealing surface, the top of the first insert is provided with a first O-shaped sealing ring and a second O-shaped sealing ring located on the first sealing surface, the first O-shaped sealing ring and the second O-shaped sealing ring are respectively concentric with the first insertion hole, and the first O-shaped sealing ring is located on the outside of the second O-shaped sealing ring.
3. The high pressure rotary union of claim 1, wherein, The top surface of the first insert is concave and provided with a first seepage hole located between the first O-shaped sealing ring and the second O-shaped sealing ring and in communication with the first liquid seepage and confluence cavity.
4. The high pressure rotary union of claim 3, wherein, The bottom surface of the second insert is in contact with the inner wall of the second fixed seat to form a second sealing surface, the bottom of the second insert is provided with a third O-shaped sealing ring and a fourth O-shaped sealing ring located on the second sealing surface, the third O-shaped sealing ring and the fourth O-shaped sealing ring are respectively concentric with the second insertion hole, and the third O-shaped sealing ring is located on the outside of the fourth O-shaped sealing ring.
5. The high pressure rotary union of claim 1, wherein, The bottom surface of the second insert is concave and provided with a second seepage hole located between the third O-shaped sealing ring and the fourth O-shaped sealing ring and in communication with the second liquid seepage and confluence cavity.
6. The high pressure rotary joint of claim 5, wherein, The first insertion hole is provided with a fifth O-shaped sealing ring located below the first liquid seepage and confluence cavity and a first bearing located below the fifth O-shaped sealing ring.
7. The high pressure rotary union of claim 1, wherein, The second insertion hole is provided with a sixth O-shaped sealing ring located above the second liquid seepage and confluence cavity and a second bearing located above the sixth O-shaped sealing ring.
8. The high pressure rotary union of claim 1, wherein, The utility model relates to a high pressure rotary joint, which comprises a first fixed seat, a second fixed seat, a mandrel and a connecting sleeve.
9. A spray device, characterized in that 10. The shower assembly of claim 9, wherein, It also comprises a speed reduction motor, which is arranged at the bottom of the first fixing base, and the output shaft of the speed reduction motor is connected with the bottom of the mandrel, the spray pipe is provided with spray heads at intervals, the spray pipe is provided with a liquid outlet pipe joint, the outer end of the mandrel is provided with a first flange, and the liquid outlet pipe joint is provided with a second flange connected with the first flange.