CN112451885B - Locking device of rotating piece, fire-fighting equipment and operation console thereof - Google Patents
Locking device of rotating piece, fire-fighting equipment and operation console thereof Download PDFInfo
- Publication number
- CN112451885B CN112451885B CN202011269124.1A CN202011269124A CN112451885B CN 112451885 B CN112451885 B CN 112451885B CN 202011269124 A CN202011269124 A CN 202011269124A CN 112451885 B CN112451885 B CN 112451885B
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- Prior art keywords
- positioning pin
- positioning
- plate
- locking device
- hole
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- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to the field of fire protection and discloses a locking device of a rotating member, fire protection equipment and an operating platform thereof, wherein the locking device of the rotating member comprises a first component (100) with a locating plate (101), a second component (200) and a locating pin (201), a locating hole (102) is formed in the locating plate (101), and the locating pin (201) can move between a locking position and an unlocking position to lock and unlock the first component (100) and the second component (200). Through above-mentioned technical scheme, the locking mode between locating pin and the locating plate is through shearing effect restriction first part and the relative rotation of second part, and this kind of locking is more reliable relatively to the locating pin is in the state that is on a parallel with the central axis, can not outwards stretch out, can not influence external structure's design, avoids the motion to interfere and influences operating personnel.
Description
Technical Field
The invention relates to the field of fire protection, in particular to a locking device of a rotating piece, an operating platform of fire protection equipment and an operating platform of the fire protection equipment.
Background
In order to meet the fire-fighting requirements of high-rise buildings, the lifting type fire-fighting equipment is widely applied. The elevating fire-fighting equipment has the functions of fire extinguishment and high-altitude rescue, and plays an irreplaceable role in guaranteeing the life and property safety of people. In the case of fire rescue, it is important how a firefighter can operate a control device such as a control box mounted on an operation turret of a fire fighting apparatus in the most convenient and reliable manner.
The space on the turntable of the elevating fire truck is limited, and a rotatable operation table is usually arranged for facilitating the operator to enter the working area and operate fire-fighting equipment. When an operator passes through, the operation table is rotated to provide enough passing channels for the operator; when an operator arrives at the operation position, the operation table is rotated to face the operator, so that the operation is more convenient.
When adjusting the rotary table to the target position angle, need lock the rotary table, be provided with radial extending's locating pin among the prior art on the rotary table, be provided with the locking seat on the brace table, be formed with the recess on the periphery of locking seat, can realize the relative locking between rotary table and the brace table through inserting the locating pin in the recess. However, on the one hand, the positioning pin is easily disengaged from the groove, and on the other hand, the positioning pin extending radially is also easily interfered with the operator and pulled to the clothes of the operator.
Disclosure of Invention
The invention aims to provide a locking device of a rotating piece, which solves the problems of weak locking and interference between accommodating and an operator.
In order to achieve the above object, according to an aspect of the present invention, there is provided a locking device for a rotating member, wherein the locking device for a rotating member includes a first member having a positioning plate, a second member, and a positioning pin provided on the second member, the first member and the second member being rotatable relative to each other about a central axis, the positioning plate being provided with a plurality of positioning holes arranged at intervals in a circumferential direction, the positioning pin being movable in a direction parallel to the central axis between a locking position in which the positioning pin is inserted into one of the positioning holes to restrict the first member and the second member from rotating relative to each other, and an unlocking position in which the positioning pin is disengaged from the positioning hole to allow the first member and the second member to rotate relative to each other.
Optionally, the locating plate is provided with a chute that extends circumferentially and communicates with the locating hole, the width of chute is less than the internal diameter of locating hole, the insertion end of locating pin is the tapering form and can insert the chute.
Alternatively, the first part is partially disposed through the second part, and a first elastic member is connected between the first part and the second part, the first elastic member at least partially surrounds the first part, and an elastic force of the first elastic member on the first part can be balanced with a static friction force of the locating pin and the sliding groove so as to keep the locating pin in the sliding groove.
Alternatively, the first member includes a limiting plate having a circular plate coaxial with the central axis and a sector plate connected to a periphery of the circular plate, and the second member includes a limiting ring including a circular hole accommodating the circular plate and a sector hole accommodating the sector plate, the sector hole having a radian greater than that of the sector plate to allow the sector plate to rotate in the sector hole about the central axis such that the first member rotates relative to the second member within a predetermined angular range.
Alternatively, the second component is fixedly provided with a shaft sleeve for accommodating the positioning pin to pass through, the inner circumferential surface of the shaft sleeve is provided with two spaced stop parts, and the outer circumference of the positioning pin is provided with a shaft shoulder capable of moving between the two stop parts.
Optionally, a second elastic element is disposed between the shaft shoulder and one of the stop portions, and the second elastic element can drive the positioning pin to axially move from the unlocking position to the locking position.
Alternatively, the positioning pin is connected with a flexible traction piece and a handle piece connected with the traction piece.
Optionally, the traction piece is a flexible shaft, and the shaft sleeve is connected with a bracket for accommodating the flexible shaft to pass through.
In addition, the invention also provides an operation table of the fire-fighting equipment, wherein the operation table of the fire-fighting equipment comprises a supporting part, a rotary table and a locking device of the rotating piece according to the scheme, the rotary table is connected to one of the first component and the second component, and the supporting part is connected to the other of the first component and the second component.
In addition, the invention also provides the fire-fighting equipment, wherein the fire-fighting equipment comprises the operation desk of the fire-fighting equipment.
Through above-mentioned technical scheme, the locking mode between locating pin and the locating plate is through shearing effect restriction first part and the relative rotation of second part, and this kind of locking is more reliable relatively to the locating pin is in the state that is on a parallel with the central axis, can not outwards stretch out, can not influence external structure's design, avoids the motion to interfere and influences operating personnel.
Drawings
FIG. 1 is a partial cross-sectional view of an operator's station of a fire apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a positioning plate according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a dowel portion according to an embodiment of the present invention;
FIG. 4 is a schematic view of a limiting plate and a limiting ring according to an embodiment of the present invention;
FIG. 5 is a schematic view of a limiting plate according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a stop collar according to an embodiment of the present invention.
Description of the reference numerals
100-first component, 101-locating plate, 102-locating hole, 103-spout, 104-limiting plate, 105-circular plate, 106-sector plate, 200-second component, 201-locating pin, 202-axle sleeve, 203-stop, 204-shoulder, 205-first elastic piece, 206-second elastic piece, 207-spacing ring, 300-bush, 400-traction piece, 500-handle piece, 600-bracket, 700-turntable, 800-support.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
The invention provides a locking device of a rotating member, wherein the locking device of the rotating member comprises a first component 100 with a locating plate 101, a second component 200 and a locating pin 201 arranged on the second component 200, wherein the first component 100 and the second component 200 can rotate relatively around a central axis, a plurality of locating holes 102 are arranged on the locating plate 101 at intervals along the circumferential direction, the locating pin 201 can move along the direction parallel to the central axis between a locking position and an unlocking position, and in the locking position, the locating pin 201 is inserted into one of the locating holes 102 to limit the relative rotation of the first component 100 and the second component 200, and in the unlocking position, the locating pin 201 is separated from the locating hole 102 to allow the relative rotation of the first component 100 and the second component 200.
The first member 100 and the second member 200 are two members relatively rotatable about a central axis, one of which may be provided as a fixed member and the other as a rotatable member, so as to be suitable for some swing mechanisms.
In addition, the first member 100 and the second member 200 may be locked relatively, that is, locking and unlocking of the first member 100 and the second member 200 is achieved by cooperation of the positioning pin 201 and the positioning plate 101, wherein, in the locked position, the positioning pin 201 is inserted into the positioning hole 102 on the positioning plate 101, and relative rotation of the positioning pin 201 is limited by the positioning plate 101, thereby limiting relative rotation of the first member 100 and the second member 200, and a shearing action exists between the positioning pin 201 and the positioning plate 101; in the unlocked position, the locating pin 201 may be withdrawn from the locating hole 102 to allow relative rotation of the locating plate 101 and the locating pin 201, and thus the first and second members 100 and 200. In addition, the detent pin 201 may be axially movable (parallel to the central axis) to switch between the unlocked and locked positions.
In this solution, the locking between the positioning pin 201 and the positioning plate 101 limits the relative rotation of the first and second parts by shearing, which is relatively more reliable, and the positioning pin is in a state parallel to the central axis, and does not protrude outwards, and does not affect the design of the external structure, and the operator is not affected by motion interference.
In addition, the positioning plate 101 is provided with a chute 103 extending in a circumferential direction and integrally communicating with the positioning hole 102, the width of the chute 103 is smaller than the inner diameter of the positioning hole 102, and the insertion end of the positioning pin 201 is tapered and can be inserted into the chute 103. As shown in fig. 2, three positioning holes 102 are provided on the positioning plate 101, and the three positioning holes 102 are communicated through the slide groove 103, and in addition, one end of the positioning pin 201, which can be inserted into the positioning hole 102, is tapered, so that the positioning pin 201 can be slid into the slide groove 103 and further into the adjacent positioning hole 102 by relatively rotating the first member 100 and the second member 200 when the positioning pin 201 is partially withdrawn. In this embodiment, the positioning pin 201 may be allowed to be incompletely withdrawn from the positioning hole 102. In other embodiments, 2, 4, or more positioning holes 102 may be provided.
Further, the first component 100 is partially disposed through the second component 200, a first elastic member 205 is connected between the first component 100 and the second component 200, the first elastic member 205 at least partially surrounds the first component 100, and an elastic force of the first elastic member 205 on the first component 100 can be balanced with a static friction force of the positioning pin 201 and the sliding groove 103, so as to keep the positioning pin 201 in the sliding groove 103. The first member 100 may be formed generally in a shaft shape as a whole, and the second member 200 may be formed generally in a tube shape to allow the first member 100 to pass therethrough, to save space. As shown in fig. 1, a first elastic member 205 is connected between the first member 100 and the second member 200, the first elastic member 205 may apply a force to the first member 100 to provide a circumferential rotation force thereto, and when the positioning pin 201 is located in the sliding slot 103, there is a friction force between the positioning pin 201 and the sliding slot 103, and when the friction force and the elastic force of the first elastic member 205 reach equilibrium, the positioning pin 201 may be maintained in the sliding slot 103, so that the first member 100 and the second member 200 are relatively fixed, and the relative angle between the first member 100 and the second member 200 may be continuously adjusted at other positions different from the locking positions corresponding to the positioning holes 102. The first elastic member 205 may be a spring wire partially surrounding the first member 100, an elastic rubber string, or the like.
In addition, the first member 100 includes a limiting plate 104, the limiting plate 104 having a circular plate 105 coaxial with the central axis and a sector plate 106 connected to a periphery of the circular plate 105, and the second member 200 includes a limiting ring 207, the limiting ring 207 including a circular hole accommodating the circular plate 105 and a sector hole accommodating the sector plate 106, an arc of the sector hole being greater than an arc of the sector plate 106 to allow the sector plate 106 to rotate in the sector hole about the central axis such that the first member 100 rotates within a predetermined angle range with respect to the second member 200. As shown in fig. 4 to 6, the circular plate 105 is substantially in clearance fit with the circular hole of the limiting ring 207, so as to be freely rotatable around the central axis, the outer circumferential dimension of the sector plate 106 corresponds to the outer circumferential dimension of the sector hole, and the radian of the sector hole is greater than that of the sector plate 106, so that the sector plate 106 can be allowed to rotate within a certain angle range, and the rotation angle is the difference between the radians of the sector plate 106 and the sector hole. By the cooperation of the stopper plate 104 and the stopper ring 207, the angular range of relative rotation of the first member 100 and the second member 200 can be defined.
The second member 200 is fixedly provided with a sleeve 202 through which the positioning pin 201 passes, two spaced stop portions 203 are provided on an inner circumferential surface of the sleeve 202, and a shoulder 204 capable of moving between the two stop portions 203 is provided on an outer circumference of the positioning pin 201. As shown in fig. 3, the sleeve 202 may be movably passed through to accommodate the positioning pin 201, and the sleeve 202 is fixed to the second member 200 so that the positioning pin 201 may be moved between the locking position and the unlocking position, and in particular, two stoppers 203 are provided on an inner circumference of the sleeve 202, and a protruding shoulder 204 is provided on an outer circumference of the positioning pin 201, and the shoulder 204 is limited by the two stoppers 203 without being separated from the sleeve 202.
Further, a second elastic member 206 is disposed between the shoulder 204 and one of the stop portions 203, and the second elastic member 206 can drive the positioning pin 201 to move axially from the unlocking position to the locking position. The second elastic member 206 may be a spring or an elastic rubber member, and the second elastic member 206 elastically acts on the positioning pin 201 to move from the unlocking position to the locking position, in particular, when the tapered insertion end of the positioning pin 201 is located in the sliding slot 103, the second elastic member 206 compresses the positioning pin 201 in the sliding slot 103, so that a sufficient static friction force is generated between the positioning pin 201 and the sliding slot 103, and the elastic force of the first elastic member 2055 is balanced to keep the positioning pin 201 in the sliding slot 103.
In addition, the positioning pin 201 is connected with a flexible traction member 400 and a pull member 500 connected to the traction member 400. By manually or mechanically, electrically driving the handle member 500, the positioning pin 201 may be pulled by the pulling member 400 from the locked position to the unlocked position, allowing the positioning pin 201 to be rotated relative to the positioning plate 101, e.g. slid into the chute 103 or adjacent to the positioning hole 102. And release of the handle member 500 allows the detent pin 201 to move back toward the locked position by the second resilient member 206 described above. The handle member 500 may be driven by a motor or a winch, or may be driven by an oil cylinder.
Alternatively, the traction member 400 is a flexible shaft, and the shaft sleeve 202 is connected to a bracket 600 for receiving the flexible shaft therethrough. The rotating shaft can be extended to a proper position according to the requirement, so that the transmission connection between the positioning pin 201 and the handle piece 500 can be realized, and the rope can also be used for acting on the traction piece 400. The sleeve 202 is connected to the bracket 600, and the traction member 400 is movably passed through the bracket 600 and connected to the positioning pin 201.
In addition, as shown in fig. 1, a bushing 300 may be provided between the first member 100 and the second member 200 to ensure lubrication between the first member 100 and the second member 200 so that the two can smoothly rotate relative to each other. As can be seen from fig. 1, the first member 100 has an annular groove formed on its outer circumference, and the second member 200 has an annular protrusion rotatably inserted into the annular groove formed on its inner circumference, and the bush 300 is provided between the annular groove and the annular protrusion, so that the axial relative positioning of the first member 100 and the second member 200 can be also achieved by the mating structure.
In addition, the present invention also provides an operation panel of a fire fighting apparatus, wherein the operation panel of the fire fighting apparatus includes a support 800, a turntable 700, and a locking device of a rotating member according to the above aspects, the turntable 700 is connected to one of the first member 100 and the second member 200, and the support 800 is connected to the other of the first member 100 and the second member 200. As shown in fig. 1, the turntable 700 is positioned approximately at the upper portion of the support part 800, the turntable 700 may be fixedly coupled to the first member 100, the support part 800 may be fixedly coupled to the second member 200, the relative locking of the turntable 700 and the support part 800 may be achieved by the locking means of the rotation member, and in the unlocked state, the turntable 700 may be allowed to rotate to a proper angular position with respect to the support part 800. In other embodiments, the support 800 may be connected to the first member 100 while the turntable 700 is connected to the second member 200.
In addition, the invention also provides the fire-fighting equipment, wherein the fire-fighting equipment comprises the operation desk of the fire-fighting equipment. The turntable 700 may be provided with fire-fighting equipment, and the fire-fighting equipment thereon may be more conveniently used by rotating the turntable 700.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a plurality of simple variants of the technical proposal of the invention can be carried out, comprising that each specific technical feature is combined in any suitable way, and in order to avoid unnecessary repetition, the invention does not need to be additionally described for various possible combinations. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (8)
1. A locking device for a rotating member, characterized in that the locking device for a rotating member comprises a first part (100) with a positioning plate (101), a second part (200) and a positioning pin (201) arranged on the second part (200), wherein the first part (100) and the second part (200) can rotate relatively around a central axis, a plurality of positioning holes (102) are arranged on the positioning plate (101) at intervals along the circumferential direction, the positioning pin (201) can move between a locking position and an unlocking position along the direction parallel to the central axis, in the locking position, the positioning pin (201) is inserted into one of the positioning holes (102) to limit the relative rotation of the first part (100) and the second part (200), and in the unlocking position, the positioning pin (201) is separated from the positioning hole (102) to allow the relative rotation of the first part (100) and the second part (200);
the positioning plate (101) is provided with a chute (103) which extends in the circumferential direction and is integrally communicated with the positioning hole (102), the width of the chute (103) is smaller than the inner diameter of the positioning hole (102), and the insertion end of the positioning pin (201) is tapered and can be inserted into the chute (103);
wherein the first part (100) comprises a limiting plate (104), the limiting plate (104) is provided with a circular plate (105) coaxial with the central axis and a sector plate (106) connected with the periphery of the circular plate (105), the second part (200) comprises a limiting ring (207), the limiting ring (207) comprises a circular hole for accommodating the circular plate (105) and a sector hole for accommodating the sector plate (106), and the radian of the sector hole is larger than that of the sector plate (106) so as to allow the sector plate (106) to rotate around the central axis in the sector hole, so that the first part (100) rotates relative to the second part (200) within a preset angle range.
2. The rotating member locking device according to claim 1, wherein the first member (100) is partially disposed through the second member (200), a first elastic member (205) is connected between the first member (100) and the second member (200), the first elastic member (205) at least partially surrounds the first member (100), and an elastic force of the first elastic member (205) on the first member (100) can be balanced with static friction force of the positioning pin (201) and the sliding groove (103) to hold the positioning pin (201) in the sliding groove (103).
3. The locking device of a rotating member according to claim 1, characterized in that a sleeve (202) for receiving the positioning pin (201) therethrough is fixedly provided on the second member (200), two spaced stopper portions (203) are provided on an inner peripheral surface of the sleeve (202), and a shoulder (204) movable between the two stopper portions (203) is provided on an outer periphery of the positioning pin (201).
4. A locking device for a rotating member according to claim 3, characterized in that a second elastic member (206) is arranged between the shoulder (204) and one of the stop portions (203), the second elastic member (206) being capable of driving the positioning pin (201) to move axially from the unlocked position to the locked position.
5. The rotating member locking device according to claim 4, wherein the positioning pin (201) is connected with a flexible pulling member (400) and a handle member (500) connected to the pulling member (400).
6. The locking device of a rotating member according to claim 5, wherein the traction member (400) is a flexible shaft, and the shaft sleeve (202) is connected to a bracket (600) for receiving the flexible shaft therethrough.
7. An operating table of a fire fighting device, characterized in that the operating table of a fire fighting device comprises a support (800), a turntable (700) and a locking device of a swivel according to any one of claims 1-6, the turntable (700) being connected to one of the first part (100) and the second part (200), the support (800) being connected to the other of the first part (100) and the second part (200).
8. A fire protection apparatus, characterized in that it comprises the console of the fire protection apparatus of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269124.1A CN112451885B (en) | 2020-11-13 | 2020-11-13 | Locking device of rotating piece, fire-fighting equipment and operation console thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269124.1A CN112451885B (en) | 2020-11-13 | 2020-11-13 | Locking device of rotating piece, fire-fighting equipment and operation console thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112451885A CN112451885A (en) | 2021-03-09 |
| CN112451885B true CN112451885B (en) | 2023-10-20 |
Family
ID=74825127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011269124.1A Active CN112451885B (en) | 2020-11-13 | 2020-11-13 | Locking device of rotating piece, fire-fighting equipment and operation console thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112451885B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204407012U (en) * | 2015-01-16 | 2015-06-17 | 徐州重型机械有限公司 | Rotating platform lock locking apparatus and engineering truck |
| CN205800945U (en) * | 2016-06-16 | 2016-12-14 | 安徽江淮专用汽车有限公司 | Rotatable vehicle step |
| CN214860769U (en) * | 2020-11-13 | 2021-11-26 | 湖南中联重科应急装备有限公司 | Locking device of rotating part, fire fighting equipment and operating platform thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMN20030043A1 (en) * | 2003-11-14 | 2005-05-15 | Amfag Spa | SINK SHOWER |
-
2020
- 2020-11-13 CN CN202011269124.1A patent/CN112451885B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204407012U (en) * | 2015-01-16 | 2015-06-17 | 徐州重型机械有限公司 | Rotating platform lock locking apparatus and engineering truck |
| CN205800945U (en) * | 2016-06-16 | 2016-12-14 | 安徽江淮专用汽车有限公司 | Rotatable vehicle step |
| CN214860769U (en) * | 2020-11-13 | 2021-11-26 | 湖南中联重科应急装备有限公司 | Locking device of rotating part, fire fighting equipment and operating platform thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112451885A (en) | 2021-03-09 |
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Address after: 410200 No. 997, Section 2, Tengfei Road, Wangcheng District, Changsha City, Hunan Province Applicant after: Hunan Zoomlion emergency equipment Co.,Ltd. Applicant after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: No.997 Jinxing Road, Wangcheng District, Changsha City, Hunan Province Applicant before: Changsha Zhonglian Fire-Fighting Machinery Co.,Ltd. Applicant before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |
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