High-pressure-resistant rotary joint device
By designing a high-pressure-resistant rotary joint device, using sealing pistons, telescopic rods, support springs and bite pads, the problem of existing rotary joints prone to deformation and fatigue under high pressure is solved, and higher compressive resistance and longer service life are achieved.
Patent Information
- Application Number
- CN202421357453.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-14
AI Technical Summary
When existing rotary joints are used under pressure for a long time, they are prone to deformation fatigue, resulting in frequent replacement of joints and increasing costs.
A high-pressure resistant rotary joint device is designed, including a mounting head assembly, an inner joint, an inner joint and a connecting head assembly. Through the sealing piston, telescopic rod, support spring and a cushion, the buffering of high-pressure impact force and elastic buffering of threaded connection is achieved.
It effectively reduces wear inside the rotary joint device, improves compressive resistance, extends service life, and reduces replacement and maintenance costs.
Smart Images
Figure CN222559501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of joint components, in particular to a high-pressure resistant rotary joint device. Background Art
[0002] The rotary joint is a rotating mechanical sealing device, which is used to fix the pipeline transmission medium. The medium used for the rotary joint includes water, thermal oil, hydraulic oil and coolant. The existing fire water source delivery pipe is installed and used by connecting the traditional rotary joint with the pipeline delivery end. However, when the rotary joint is used under pressure for a long time, the threaded connection end of the rotary joint is prone to deformation fatigue, resulting in the need to frequently replace the joint and increase the cost. Therefore, we propose a high-pressure resistant rotary joint device. Utility Model Content
[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a high-pressure resistant rotary joint device.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-pressure resistant rotary joint device, comprising a conveying hose and a conveying end, a rotary joint device is arranged at the front end of the conveying end, the rotary joint device is composed of an installation head assembly, an inner joint, an inner connecting end and a connecting head assembly, the inner joint and the inner connecting end are integrally formed and connected and are located inside the installation head assembly in a sealed sliding state, a sealing piston is installed on the outer sleeve of the inner joint located inside the installation head assembly, a support sleeve is installed on the inner front side of the installation head assembly, a telescopic rod is installed through the inside of the support sleeve, the end of the telescopic rod is limited and slidably matched with the inside of the support sleeve through a limit piece, and a support spring connected to the limit piece is arranged inside the support sleeve.
[0005] Preferably, when the delivery hose delivers water to the installation head assembly and contacts the inner connection end, the telescopic rod on the end of the sealing piston on the outer periphery of the inner joint is located inside the support sleeve and is in a telescopic sliding state;
[0006] Furthermore, the support spring inside the support sleeve is in an elastic buffering state for the telescopic rod through the limiting piece.
[0007] Preferably, a notch is provided at the periphery of the inner connecting end, a sealing ring is sleeved inside the notch, the sealing ring itself has deformation characteristics, and the periphery of the inner connecting end is in a sealed fit with the inner side of the mounting head assembly through the sealing ring.
[0008] Preferably, the outer periphery of the connector assembly is provided with an external thread, the inner side of the delivery end is provided with an internal thread, the surface of the external thread is covered with a bite pad, and the outer periphery of the connector assembly is threadedly connected and matched with the internal thread on the inner side of the delivery end through the external thread;
[0009] Furthermore, the bite pad itself has a deformation property. When the connector assembly is threadedly connected to the internal thread on the inner side of the delivery end through the external thread, the external thread and the internal thread are in a threaded engagement state with the bite pad.
[0010] Preferably, a fixed end is installed on the outer sleeve of the mounting head assembly, and corresponding screw holes are provided inside the end of the connecting head assembly and the fixed end, and a fixing bolt for fixing the mounting head assembly and the connecting head assembly is threadedly connected in the screw hole inside the connecting head assembly, and a fixing nut is threadedly provided on the end of the fixing bolt.
[0011] Preferably, a sealing gasket is provided between the mounting head assembly and the connecting head assembly, and the sealing gasket itself has a deformation property;
[0012] Furthermore, when the mounting head assembly and the connecting head assembly are butted and extruded, the mounting head assembly and the connecting head assembly are in a sealed fit via the sealing gasket.
[0013] Beneficial Effects
[0014] The utility model provides a high-pressure resistant rotary joint device. It has the following beneficial effects:
[0015] (1) A high-pressure resistant rotary joint device. In this article, the rotary joint device is composed of an installation head assembly, an inner joint, an inner connection end and a connecting head assembly. The rotary joint device can be connected to the inner thread on the inner side of the delivery end through the outer thread on the outer periphery of the connecting head assembly. After the water source inside the delivery hose is delivered into the installation head assembly through the delivery end, the water source can enter the inner joint through the inner connection end for liquid spraying. Under the impact of the water source, the inner joint can slide toward the front end of the installation head assembly. The telescopic rod at the end of the sealing piston will squeeze the support spring inside the support sleeve through the limiter. At this time, when the inner joint slides inside the installation head assembly, the support sleeve inside The supporting spring can elastically support and buffer the inner joint, so that the water source delivered into the installation head assembly through the delivery hose can buffer the high-pressure impact force generated by the water source through the sliding adjustment of the inner joint, thereby reducing the wear inside the rotary joint device. When one end of the connecting head assembly is connected to the internal thread on the inner side of the delivery end through the external thread, the bite pad is in a threaded bite state through the external thread and the internal thread. At this time, the external thread and the internal thread can be elastically buffered through the bite pad when the threaded connection is subjected to force, thereby further reducing the damage to the rotary joint device itself, thereby achieving the effect of improving the pressure resistance of the rotary joint device, extending the service life of the rotary joint device, and reducing costs.
[0016] (2) A high-pressure resistant rotary joint device, wherein the mounting head assembly is connected to the inner side of the conveying end through the connecting head assembly, and the mounting head assembly and the connecting head assembly are detachably connected. When the rotary joint device is connected to the conveying end for use, the sealing gaskets at the end of the connecting head assembly and the end of the mounting head assembly can be butted against each other. At this time, the fixing bolts can be threadedly connected and fixed to the screw holes in the connecting head assembly and the fixed end, so that the mounting head assembly and the connecting head assembly are sealed and installed with each other. In this way, when the rotary joint device is subsequently replaced, the connecting head assembly and the mounting head assembly can be disassembled separately to replace the connecting head assembly, thereby achieving a cost-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 For this utility model Figure 1 A magnified view of middle;
[0021] Figure 3 For this utility model Figure 1 Enlarged view of middle B;
[0022] Figure 4 For this utility model Figure 1 Enlarged view of middle C;
[0023] Figure 5 For this utility model Figure 1 Enlarged view of D in the middle.
[0024] Legend:
[0025] 1. Delivery hose; 2. Delivery end; 3. Mounting head assembly; 4. Internal joint; 5. Internal connection end; 6. Connector assembly; 7. Notch; 8. Sealing ring; 9. Sealing piston; 10. Support sleeve; 11. Telescopic rod; 12. Limiting piece; 13. Support spring; 14. External thread; 15. Internal thread; 16. Bite pad; 17. Sealing pad; 18. Fixed end; 19. Screw hole; 20. Fixing bolt; 21. Fixing nut. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] Embodiment: A high pressure resistant rotary joint device, such as Figure 1-Figure 5 As shown, it includes a conveying hose 1 and a conveying end 2. A swivel joint device is provided at the front end of the conveying end 2. The swivel joint device is composed of a mounting head assembly 3, an inner joint 4, an inner connecting end 5 and a connecting head assembly 6. The inner joint 4 and the inner connecting end 5 are integrally formed and connected and are located inside the mounting head assembly 3 in a sealed sliding state. A notch 7 is provided on the periphery of the inner connecting end 5. A sealing ring 8 is sleeved inside the notch 7. The sealing ring 8 itself has deformation characteristics. A sealing piston 9 is sleeved on the periphery of the inner joint 4 inside the mounting head assembly 3. A supporting sleeve 10 is installed on the inner front side of the mounting head assembly 3. A telescopic rod 11 connected to the sealing piston is installed through the interior of the supporting sleeve 10. The end of the telescopic rod 11 is limitedly slidably matched with the inside of the supporting sleeve 10 through a limiting member 12. The interior of the supporting sleeve 10 is provided with a sealing member 9. A support spring 13 is provided which is supported and connected with the limit member 12, an outer periphery of the connector assembly 6 is provided with an external thread 14, an inner side of the conveying end 2 is provided with an internal thread 15, a surface of the external thread 14 is covered with a bite pad 16, the outer periphery of the connector assembly 6 is threadedly connected with the internal thread 15 on the inner side of the conveying end 2 through the external thread 14, a sealing gasket 17 is provided between the mounting head assembly 3 and the connector assembly 6, the sealing gasket 17 itself has a deformation characteristic, a fixed end 18 is sleeved and installed on the outer periphery of the mounting head assembly 3, the end of the connector assembly 6 and the interior of the fixed end 18 are provided with corresponding screw holes 19, a fixing bolt 20 for fixing the mounting head assembly 3 and the connector assembly 6 is threadedly connected in the screw hole 19 inside the connector assembly 6, and a fixing nut 21 is threadedly sleeved on the end of the fixing bolt 20.
[0028] Furthermore, when the delivery hose 1 delivers water to the installation head assembly 3 and contacts the inner connection end 5, the telescopic rod 11 on the end of the sealing piston 9 outside the inner joint 4 is located inside the support sleeve 10 and is in a telescopic sliding state.
[0029] Furthermore, the support spring 13 inside the support sleeve 10 is in an elastic buffering state for the telescopic rod 11 through the limiter 12 .
[0030] Furthermore, the periphery of the inner connection end 5 is in a sealed fit with the inner side of the mounting head assembly 3 via a sealing ring 8 .
[0031] Furthermore, the bite pad 16 itself has a deformation property. When the connector assembly 6 is threadedly connected to the internal thread 15 on the inner side of the delivery end 2 through the external thread 14, the external thread 14 and the internal thread 15 are in a threaded engagement state with the bite pad 16.
[0032] Furthermore, when the mounting head assembly 3 and the connecting head assembly 6 are butt-jointed and extruded, the mounting head assembly 3 and the connecting head assembly 6 are in a sealed fit via the sealing gasket 17 .
[0033] The working principle of this utility model:
[0034] The rotary joint device is composed of an installation head assembly 3, an inner joint 4, an inner connection end 5 and a connector assembly 6. The rotary joint device can be threadedly connected with the inner thread 15 on the inner side of the delivery end 2 through the outer thread 14 on the outer periphery of the connector assembly 6. After the water source inside the delivery hose 1 is delivered into the installation head assembly 3 through the delivery end 2, the water source can enter the inner joint 4 through the inner connection end 5 for liquid supply and spraying, and the inner joint 4 can slide toward the front end of the installation head assembly 3 under the impact of the water source, and the telescopic rod 11 at the end of the sealing piston 9 will be located inside the support sleeve 10 through the limiter 12 to squeeze the support spring 13. At this time, when the inner joint 4 slides inside the installation head assembly 3, the support spring 13 inside the support sleeve 10 3 can elastically support and buffer the inner joint 4, so that the water source delivered into the installation head assembly 3 through the delivery hose 1 can buffer the high-pressure impact force generated by the water source through the sliding adjustment of the inner joint 4, thereby reducing the wear inside the rotary joint device. When one end of the connecting head assembly 6 is connected to the inner thread 15 on the inner side of the delivery end 2 through the external thread 14, the bite pad 16 is in a thread bite state through the external thread 14 and the internal thread 15. At this time, when the external thread 14 and the internal thread 15 are subjected to force during the threaded connection, they can be elastically buffered through the bite pad 16, so that the damage to the rotary joint device itself is further reduced, thereby improving the pressure resistance of the rotary joint device, extending the service life of the rotary joint device, and reducing costs.
[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A high pressure resistant rotary joint device, comprising a delivery hose (1) and a delivery end (2), characterized in that: A rotary joint device is provided at the front end of the conveying end (2), and the rotary joint device is composed of a mounting head assembly (3), an inner joint (4), an inner connection end (5) and a connecting head assembly (6); the inner joint (4) and the inner connection end (5) are integrally formed and connected and are located inside the mounting head assembly (3) in a sealed sliding state; a sealing piston (9) is installed on the outer sleeve of the inner joint (4) inside the mounting head assembly (3); a support sleeve (10) is installed on the front side of the interior of the mounting head assembly (3); a telescopic rod (11) is installed through the interior of the support sleeve (10); the end of the telescopic rod (11) is limitedly slidably matched with the interior of the support sleeve (10) through a limit piece (12); and a support spring (13) supported and connected to the limit piece (12) is provided inside the support sleeve (10).
2. A high pressure resistant rotary joint device according to claim 1, characterized in that: When the delivery hose (1) delivers water to the inside of the installation head assembly (3) and contacts the inner connection end (5), the telescopic rod (11) on the end of the sealing piston (9) outside the inner joint (4) is located inside the support sleeve (10) and is in a telescopic sliding state, and the support spring (13) inside the support sleeve (10) is in an elastic buffering state for the telescopic rod (11) through the limiter (12).
3. A high pressure resistant rotary joint device according to claim 2, characterized in that: A notch (7) is provided on the periphery of the inner connection end (5), a sealing ring (8) is sleeved inside the notch (7), and the periphery of the inner connection end (5) is in a sealed fit with the inner side of the mounting head assembly (3) via the sealing ring (8).
4. A high pressure resistant rotary joint device according to claim 1, characterized in that: The outer periphery of the connector assembly (6) is provided with an external thread (14), the inner side of the delivery end (2) is provided with an internal thread (15), the surface of the external thread (14) is covered with a bite pad (16), and the outer periphery of the connector assembly (6) is threadedly connected with the internal thread (15) on the inner side of the delivery end (2) through the external thread (14).
5. A high pressure resistant rotary joint device according to claim 4, characterized in that: The bite pad (16) itself has a deformation property. When the connector assembly (6) is threadedly connected to the internal thread (15) on the inner side of the delivery end (2) through the external thread (14), the external thread (14) and the internal thread (15) are in a threaded engagement state with the bite pad (16).
6. A high pressure resistant rotary joint device according to claim 5, characterized in that: The outer sleeve of the mounting head assembly (3) is provided with a fixed end (18), and the end of the connecting head assembly (6) and the interior of the fixed end (18) are provided with corresponding screw holes (19), and a fixing bolt (20) for fixing the mounting head assembly (3) and the connecting head assembly (6) is threadedly connected in the screw hole (19) inside the connecting head assembly (6), and a fixing nut (21) is threadedly sleeved on the end of the fixing bolt (20).
7. A high pressure resistant rotary joint device according to claim 6, characterized in that: A sealing gasket (17) is provided between the mounting head assembly (3) and the connecting head assembly (6); the sealing gasket (17) itself has a deformation property; when the mounting head assembly (3) and the connecting head assembly (6) are butt-joined and extruded, the mounting head assembly (3) and the connecting head assembly (6) are in a sealed fit via the sealing gasket (17).