CN220891319U - Large-diameter and high-pressure rotary joint - Google Patents
Large-diameter and high-pressure rotary joint Download PDFInfo
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- CN220891319U CN220891319U CN202223013599.1U CN202223013599U CN220891319U CN 220891319 U CN220891319 U CN 220891319U CN 202223013599 U CN202223013599 U CN 202223013599U CN 220891319 U CN220891319 U CN 220891319U
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- Prior art keywords
- support arm
- corner
- tube
- rotary joint
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 210000000664 rectum Anatomy 0.000 claims abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 description 14
- 239000007921 spray Substances 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
Big latus rectum, high pressure rotary joint belong to fire control mechanical equipment technical field, including L shape's corner pipe, its characterized in that: the fixed end of the corner tube is fixed at one end of a support arm, and the water pipe port at the end in the support arm is fixedly and hermetically connected with the fixed end of the corner tube. The movable end of the corner tube extends out of the support arm. The water pipe mouth at the end in the other support arm extends into the movable end of the corner pipe, and the water pipe mouth is provided with a water mouth flange. A plurality of rings of bulges are arranged in the movable end of the corner tube, and a rotary joint sealing ring is arranged between every two adjacent rings of bulges. The nozzle flange is disposed inside the plurality of lobes. The movable end of the corner tube extends into the support arm circular convex tube of the other support arm, and a bearing is arranged between the outer wall of the movable end of the corner tube and the inner wall of the support arm circular convex tube. The rotary joint is matched with the rotation of the support arm, so that water can be conveniently bent.
Description
Technical Field
The utility model belongs to the technical field of fire-fighting mechanical equipment, and particularly relates to a large-diameter and high-pressure rotary joint.
Background
The current aerial ladder of the fire truck has the manned rising height of only tens of meters, and is difficult to extinguish fire in a fire scene higher than 100 meters, and the manned aerial ladder cannot rise to the height.
Because the 'shape of a plurality of support arms' used in the design is hinged end to end, the design can be expanded and folded, and if the traditional whole water pipe is used for supplying water from end to end, the water pipe is easy to excessively twist, fold and even break and twist off at the corner when being opened and closed.
Because the robot can rise to a very high level, if the upper support arm still uses the power cylinder to provide rising power like the lower support arm, the medium needed by the power cylinder needs to be pumped to a very high level, and a pump with a large lift is needed to provide power, and the power is not provided by electricity, so that the requirement on the height is not great.
Disclosure of utility model
The utility model aims to provide a large-diameter high-pressure rotary joint, so that water can be conveniently bent and supplied more smoothly.
The technical scheme adopted is as follows:
Big latus rectum, high pressure rotary joint include L shape's corner pipe, its characterized in that: the fixed end of the corner tube is fixed at one end of a support arm, and the water pipe port at the end in the support arm is fixedly and hermetically connected with the fixed end of the corner tube. The movable end of the corner tube extends out of the support arm.
The water pipe mouth at the end in the other support arm extends into the movable end of the corner pipe, and the water pipe mouth is provided with a water mouth flange. A plurality of rings of bulges are arranged in the movable end of the corner tube, and a rotary joint sealing ring is arranged between every two adjacent rings of bulges. The nozzle flange is disposed inside the plurality of lobes. The movable end of the corner tube extends into the support arm circular convex tube of the other support arm, and a bearing is arranged between the outer wall of the movable end of the corner tube and the inner wall of the support arm circular convex tube.
The advantages are that:
The giant fire extinguishing robot can adjust a plurality of degrees of freedom, can perform water spraying fire extinguishment without lifting a manned object to a very high height (for example, more than 100 meters), overcomes the defect of the existing aerial ladder manned object, can expand the height of water spraying fire fighting in a large scale, can bypass partial barriers, and ensures the safety of lives and properties of people. The rotary joint can lead the water to be convenient to bend and the water supply to be smoother. The joint is used for providing rotation power to reduce the weight at high positions, the electric power is directly used, and the medium of the power cylinder is not required to be used for pumping to the higher positions.
Drawings
Fig. 1 is a front view of the overall structure of the robot.
FIG. 2 is a side view of a plurality of arms alternating front and back.
Fig. 3 is a schematic structural view of the fixed end of the corner tube on the right side.
Fig. 4 is a schematic view of another structure in which the fixed end of the corner tube is located on the right side.
Fig. 5 is a schematic structural view of the fixed end of the corner tube on the left side.
Fig. 6 is a schematic view of a structure in which the motor reducer and the gear are located on the right side.
Fig. 7 is a schematic view of another structure in which the motor reducer and the gear are located on the right side.
Fig. 8 is a schematic view of a structure in which the motor speed reducer and the gear are located on the left side.
The device comprises a frame 1, a water pump 2, a support arm 3, a water gap flange 4, a power cylinder 5, a water tank 6, a corner pipe 7, a bearing 8, a motor reducer 9, a support arm circular convex pipe 10, a driven gear 11, a driving gear 12, a spray gun head 13, a joint 14, a support 15, a support pipeline 16 and a rotary joint sealing ring 17.
Detailed Description
The digital multi-degree-of-freedom lifting fire-extinguishing giant robot comprises a frame 1, a plurality of support arms 3, a water pipe and a spray gun head 13.
The frame 1 is supported with a plurality of hollow arms 3.
The plurality of hollow support arms 3 are hinged in a zigzag shape in a head-to-tail mode, the support arm 3 at the bottommost part is hinged on the frame 1 through a power cylinder 5 and a shaft seat, and the plurality of support arms 3 at the bottommost part are hinged on the support arm 3 at the bottom through the power cylinders 5 at the bottoms respectively.
The head and tail ends of the support arms 3 at the bottom are hinged through rotary joints 4.
The upper support arms 3 are hinged with the rotary joints 4 through joints 14 at the head and tail ends, and are driven by a power device in the joints 14 to rise upwards.
The joint 14 is a servo power multi-degree-of-freedom fire-extinguishing giant robot joint.
The inside of a plurality of support arms 3 is provided with water pipes (which can be hard water pipes or flexible water pipes used together, such as plastic water pipes, stainless steel water pipes or carbon fiber water pipes) which are turned in a zigzag shape to pass through, the tail part of the uppermost support arm 3 is provided with a spray gun head 13, the outlet of the water pipe is connected with the inlet of the spray gun head 13, and water is sprayed outwards from the spray gun head 13.
The concrete structure is as follows:
the arms 3 positioned below are pushed upwards by the power cylinder 5 to extend.
The head of the first support arm 3 at the bottom is hinged on the frame 1 through a shaft and a shaft bracket.
The middle part of the first arm 3 is hinged to the frame 1 by a power cylinder 5 (hydraulic cylinder).
The tail of the first arm 3 is connected to the head of the second arm 3 above by a swivel joint 4.
The tail of the second upper support arm 3 is connected with the head of the third upper support arm 3 through a rotary joint 4.
The tail of each support arm 3 upwards is connected with the head of the support arm 3 above through a rotary joint 4.
Sequentially connected end to the uppermost arm 3.
The middle parts of the plurality of support arms 3 at the bottom are hinged on the support 15 extending from the support arm 3 below through the power cylinder 5.
Extension of the plungers of the plurality of power cylinders 5 can push the plurality of support arms 3 and the internal water pipe to extend upwards for water delivery.
In this embodiment three arms 3 and three power cylinders 5 are provided at the bottom.
Excessive twisting, folding and even breaking and twisting of the water pipe at the corners are easily caused by the opening and closing of the support arms 3. The utility model provides a rotary joint (large-diameter and high-pressure rotary joint), the inner circular diameter of an L-shaped corner tube 7 can reach 50 mm-80 mm, and the pressure can bear 10Mpa of water pressure. The inner diameter may in particular be 50 mm, 60 mm or 80mm.
One specific arrangement structure of the rotary joint 4 is as follows:
The rotary joint 4 comprises an L-shaped corner tube 7, the fixed end of the corner tube 7 is fixed at one end of the lower support arm 3, and a water pipe orifice at the end in the lower support arm 3 is fixedly and hermetically connected with the fixed end of the corner tube 7.
The movable end of the corner tube 7 extends out of the lower support arm 3.
The water pipe mouth at the end in the upper support arm 3 extends into the movable end of the corner pipe 7, and the water pipe mouth is provided with a water mouth flange 4. The movable end of the corner tube 7 is internally provided with a plurality of circles of bulges, and a rotary joint sealing ring 17 is arranged between every two adjacent circles of bulges. The nozzle flange 4 is arranged inside the collar of the collar. The water pipe at the plurality of rings of protrusions and the plurality of rotary joint sealing rings 17 may be further lined with a section of supporting pipeline 16 (hard pipeline may be a waterproof hard pipeline, such as hard plastic or stainless steel, etc.), and strength of the flexible pipeline is enhanced to facilitate follow-up rotation. (other rotary seal arrangements known in the mechanical arts may be used herein).
The movable end of the corner tube 7 extends into a support arm circular convex tube 10 of the upper support arm 3, and a bearing 8 is arranged between the outer wall of the movable end of the lower corner tube 7 and the inner wall of the upper support arm circular convex tube 10.
Another specific arrangement structure of the rotary joint 4 is as follows:
The water pipe orifice at the end in the upper support arm 3 is fixedly and hermetically connected with the fixed end of the corner pipe 7.
The movable end of the corner tube 7 extends out of the upper arm 3.
The water pipe mouth at the end in the lower support arm 3 extends into the movable end of the corner pipe 7, and the water pipe mouth is provided with a water mouth flange 4. The movable end of the corner tube 7 is internally provided with a plurality of circles of bulges, and a rotary joint sealing ring 17 is arranged between every two adjacent circles of bulges. The water gap flange 4 is arranged on the inner side of the multi-ring bulge to limit the edge of the water pipe.
The outer wall of the movable end of the corner tube 7 extends into a support arm circular convex tube 10 of the lower support arm 3, and a bearing 8 is arranged between the outer wall of the movable end of the upper corner tube 7 and the inner wall of the lower support arm circular convex tube 10.
The working principle is as follows:
The water gets into the stiff end of corner pipe 7 from the water pipe in the support arm 3 of below, and the expansion end of corner pipe 7, because the relative rotation has taken place for the support arm 3 afterbody of below and the support arm 3 head of top, and the water pipe of top is rotatory upwards, and the cooperation rotation is carried out under the support of bearing 8 to the expansion end of support arm 3 of top and corner pipe 7, and water can get into the water pipe of top smoothly through corner pipe 7, can not take place aforesaid excessively distortion, fold and break the condition of torsion. Furthermore, if the water pipe is flexible, a section of supporting pipeline 16 can be lined on the water pipe with a plurality of rings of bulges and a plurality of rotary joint sealing rings 17, so that the water pipe at the rotary joint sealing rings 17 can be conveniently sealed in a rotating way. The direction of the arrow shown in fig. 3 is the water flow curve.
Or as a second construction, the water turns upwards from the free end of the corner tube 7 to the fixed end of the corner tube 7.
The joints 14 are adopted to connect the heads and the tails of the plurality of support arms 3 positioned above to turn, and the motor speed reducer 9 adopting servo power in the joints 14 drives the structure of turning angle rotation to extend upwards.
The joint 14 includes a motor speed reducer 9, a driving gear 12, and a driven gear 11.
The circular convex tube 10 of the support arm is externally provided with a driven gear 11.
The other support arm 3 is fixed with a motor speed reducer 9, and the output shaft of the motor speed reducer 9 is provided with a driving gear 12. The driving gear 12 and the driven gear 11 are engaged. For more accurate control of the rotation of the gear, the motor reducer 9 may be a harmonic reducer.
When the driven gear 11 is provided on the upper arm 3, the motor speed reducer 9 is provided on the lower arm 3.
When the driven gear 11 is provided on the lower arm 3, the motor speed reducer 9 is provided on the upper arm 3.
The working principle is as follows:
The motor reducer 9 drives the driving gear 12, and the driving gear 12 drives the driven gear 11, so that the upper support arm 3 is driven to extend upwards.
Each section of water pipe in the plurality of support arms 3 turns in a U-shaped manner through the rotary joint 4 of the corner until reaching the end part of the support arm 3 at the uppermost part, the end part of the support arm 3 at the uppermost part is provided with a spray gun head 14, and the water pipe outlet at the last end is connected with the spray gun head to spray water outwards for fire extinguishment.
The water pipe inlet in the support arm 3 at the lowest end is connected with the outlet of the water pump 2, and the outlet of the water pump is connected with the water supply port of the water tank 6.
In the embodiment, four support arms 3 are driven by a motor speed reducer 9 at the upper part, 3 support arms at the bottom are arranged, and the whole robot is a seven-degree-of-freedom huge fire extinguishing robot.
Further, the plurality of arms 3 are arranged alternately in the front-rear direction, and such a folding manner is more easily balanced in the vertical direction.
The water pump 2 and the water tank 6 may be provided on the frame 1 or on other mating vehicles.
The frame 1 has tires that can be towed from a cab or with a trailer.
The plunger of the power cylinder 5 stretches out or contracts to drive the lifting or folding of the support arm 3 at the bottom, so that the hydraulic power is high and the hydraulic support is suitable for bottom support.
The upper joint 14 is electrically powered to open or retract.
The length of a single support arm 3 can reach more than 20 meters, and the extension of a plurality of support arms 3 can reach more than 100 meters.
Claims (3)
1. Big latus rectum, high pressure rotary joint, corner pipe (7) including L shape, its characterized in that: the fixed end of the corner tube (7) is fixed at one end of a support arm (3), and the water pipe port at the end in the support arm (3) is fixedly and hermetically connected with the fixed end of the corner tube (7); the movable end of the corner tube (7) extends out of the support arm (3);
A water pipe mouth at the end in the other support arm (3) stretches into the movable end of the corner pipe (7), and a water mouth flange (4) is arranged at the water pipe mouth; a plurality of circles of bulges are arranged in the movable end of the corner tube (7), and a rotary joint sealing ring (17) is arranged between every two adjacent circles of bulges; the water gap flange (4) is arranged on the inner side of the multi-ring bulge; the movable end of the corner tube (7) extends into a support arm circular convex tube (10) of the other support arm (3), and a bearing (8) is arranged between the outer wall of the movable end of the corner tube (7) and the inner wall of the support arm circular convex tube (10).
2. The large-path, high-pressure rotary joint of claim 1, wherein:
the inner circular diameter of the L-shaped corner tube (7) is 50 mm-80 mm.
3. The large-path, high-pressure rotary joint of claim 2, wherein:
The inner circular diameter of the L-shaped corner tube (7) is 50 mm, 60 mm or 80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223013599.1U CN220891319U (en) | 2022-11-14 | 2022-11-14 | Large-diameter and high-pressure rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223013599.1U CN220891319U (en) | 2022-11-14 | 2022-11-14 | Large-diameter and high-pressure rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220891319U true CN220891319U (en) | 2024-05-03 |
Family
ID=90875092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223013599.1U Active CN220891319U (en) | 2022-11-14 | 2022-11-14 | Large-diameter and high-pressure rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220891319U (en) |
-
2022
- 2022-11-14 CN CN202223013599.1U patent/CN220891319U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |