CN216105653U - Liquid ammonia tank manhole door hoisting accessory - Google Patents
Liquid ammonia tank manhole door hoisting accessory Download PDFInfo
- Publication number
- CN216105653U CN216105653U CN202121656317.2U CN202121656317U CN216105653U CN 216105653 U CN216105653 U CN 216105653U CN 202121656317 U CN202121656317 U CN 202121656317U CN 216105653 U CN216105653 U CN 216105653U
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- CN
- China
- Prior art keywords
- connecting rod
- liquid ammonia
- manhole door
- ammonia tank
- fixedly connected
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010667 large scale reaction Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a lifting device for a manhole door of a liquid ammonia tank, which comprises a manhole door cover plate, a connecting mechanism, a first telescopic mechanism and a second telescopic mechanism, wherein the connecting mechanism comprises a bearing, an upper connecting rod, a lower connecting rod and a transverse connecting rod; the first telescopic mechanism is in transmission connection with the transverse connecting rod and is used for driving the transverse connecting rod to do lifting motion; the second telescopic mechanism is in transmission connection with the upper connecting rod and used for driving the outer ring and the inner ring of the bearing to rotate relatively through the upper connecting rod. The embodiment of the utility model has the following beneficial effects: the lifting device for the manhole door of the liquid ammonia tank can drive the manhole door to move up and down through the transmission connection of the first telescopic mechanism and the transverse connecting rod, can also be connected with the upper connecting rod through the transmission connection of the second telescopic mechanism, and drives the manhole door cover plate to rotate around the bearing through the bearing.
Description
Technical Field
The utility model relates to the technical field of hanging equipment, in particular to a hoisting device for a manhole door of a liquid ammonia tank.
Background
The method is applied to a plurality of large-scale reaction towers, storage tanks, pipelines and other equipment in industrial production, and manhole doors are arranged on the large-scale reaction towers, the storage tanks and the pipelines in order to conveniently inspect and treat the inside of the equipment. The manhole door can have various shapes according to different shapes of equipment, and is round and square in industrial application.
At present, a circular manhole door is generally fixed by bolts, but the weight of a circular manhole door cover plate of large equipment is large, the disassembly and fastening need to be carried out by a plurality of people, and the disassembly and the assembly of the large circular manhole door cover plate are extremely inconvenient. Hoisting devices, such as the hoisting device disclosed in application No. 201620771275.X, are generally installed beside a large manhole cover plate to facilitate hoisting of the manhole.
However, the device can only lift the manhole door cover plate upwards or rotate the manhole door cover plate outwards, and cannot rotate the manhole door cover plate laterally, so that the application scene is limited.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a manhole door lifting device for a liquid ammonia tank, so as to solve the technical problem in the prior art that the manhole door cover plate lifting device is limited in application.
The utility model provides a liquid ammonia tank manhole door hoisting device, which comprises: the manhole door comprises a manhole door cover plate, a connecting mechanism, a first telescopic mechanism and a second telescopic mechanism, wherein the connecting mechanism comprises a bearing, an upper connecting rod, a lower connecting rod and a transverse connecting rod; the first telescopic mechanism is in transmission connection with the transverse connecting rod and is used for driving the transverse connecting rod to do lifting motion; the second telescopic mechanism is in transmission connection with the upper connecting rod and used for driving the outer ring and the inner ring of the bearing to rotate relatively through the upper connecting rod.
Furthermore, a sliding groove is formed in the outer side face of the liquid ammonia tank in the vertical direction, and one end, far away from the bearing, of the transverse connecting rod is inserted into the sliding groove in a sliding mode.
Furthermore, the connecting mechanism further comprises a sliding block movably arranged in the sliding groove, and the sliding block is fixedly connected with one end, far away from the bearing, of the transverse connecting rod.
Furthermore, the first telescopic mechanism is a pulley block mechanism and comprises a first lifting cable, a first power wheel and at least one first driven wheel, one end of the first lifting cable is wound on the first power wheel, and the other end of the first lifting cable is fixedly connected with the transverse connecting rod by winding around the first driven wheel.
Furthermore, first telescopic machanism still includes the first support with liquid ammonia jar fixed connection, and first power wheel and first follow driving wheel set up on first support.
Furthermore, the second telescopic mechanism is also a pulley block mechanism and comprises a second lifting cable, a second power wheel and at least one second driven wheel, one end of the second lifting cable is wound on the second power wheel, and the other end of the second lifting cable is fixedly connected with the upper connecting rod by winding around the second driven wheel.
Furthermore, the second telescopic mechanism further comprises a second support fixedly connected with the liquid ammonia tank, and a second power wheel and a second driven wheel are arranged on the second support.
Furthermore, the first telescopic mechanism and the second telescopic mechanism share the same power wheel.
Furthermore, the first telescopic mechanism and the second telescopic mechanism share the same support.
Further, liquid ammonia tank manhole door hoisting accessory is still including setting up in the damper of manhole door apron one side, and damper includes fixed part, cushion and elasticity portion, fixed part and liquid ammonia tank fixed connection, and the cushion is convex and arranges towards manhole door apron, elasticity portion fixed connection fixed part and cushion.
Compared with the prior art, the lifting device for the manhole door of the liquid ammonia tank can drive the manhole door to move up and down through the transmission connection of the first telescopic mechanism and the transverse connecting rod, and can also be in transmission connection with the upper connecting rod through the second telescopic mechanism to drive the manhole door cover plate to rotate around the bearing through the bearing; the two movements can also occur simultaneously, so that only a small displacement of the telescopic mechanism is required to form an opening at the manhole door, which is sufficient for people to pass through.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to be implemented according to the content of the description, the following detailed description is given with reference to the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a schematic structural view of a manhole door lifting device for a liquid ammonia tank according to a first embodiment of the utility model;
FIG. 2 is a side view of the coupling mechanism of FIG. 1;
FIG. 3 is a schematic structural view of a manhole door lifting device for a liquid ammonia tank according to a second embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.
Referring to fig. 1 and 2, the hoisting device for the manhole door of the liquid ammonia tank comprises a manhole door cover plate 1, a connecting mechanism 2, a first telescopic mechanism 3 and a second telescopic mechanism 4, wherein the connecting mechanism 2 is connected to the manhole door cover plate 1, the first telescopic mechanism 3 can pull the connecting mechanism 2 to perform lifting movement in the vertical direction, and the second telescopic mechanism 4 can pull the connecting mechanism 2 to drive the manhole door cover plate 1 to rotate.
Wherein the connecting mechanism 2 comprises a bearing 21, an upper link 22, a lower link 23 and a cross link 24. The lower end of the upper connecting rod 22 is fixedly connected with the outer ring of the bearing 21, and the upper end and the lower end of the lower connecting rod 23 are respectively fixedly connected with the outer ring of the bearing 21 and the manhole door cover plate 1. One end of the transverse connecting rod 24 is fixedly connected with the inner ring of the bearing 21, and the other end of the transverse connecting rod can be preferably inserted into a sliding groove which is formed in the outer side surface of the liquid ammonia tank along the vertical direction, so that the transverse connecting rod 24 can be supported by the bottom of the sliding groove, and the transverse connecting rod 24 can be kept horizontal. And can also set up slider 25 in the spout activity, slider 25 and the one end fixed connection that bearing 21 is kept away from to horizontal connecting rod 24, through slider 25 and spout cooperation sliding connection for horizontal connecting rod 24 slides more smoothly from top to bottom along vertical direction.
The first telescoping mechanism 3 is in transmission connection with the transverse connecting rod 24 and is used for driving the transverse connecting rod 24 to do lifting movement. The second telescopic mechanism 4 is in transmission connection with the upper connecting rod 22 and is used for driving the outer ring and the inner ring of the bearing 21 to rotate relatively through the upper connecting rod 22, so that the manhole door cover plate 1 can rotate around the bearing 21 in the lateral direction.
In order to avoid that the manhole door cover plate 1 cannot crash other parts when returning, the device can also be used for installing a damping mechanism 5 on the side wall of the liquid ammonia tank, wherein the damping mechanism 5 is positioned on one side of the manhole door cover plate 1 and on the rotating path of the manhole door cover plate 1. The damping mechanism 5 comprises a fixed part 51, a soft cushion 52 and an elastic part 53, wherein the fixed part 51 is fixedly connected with the liquid ammonia tank, the soft cushion 52 is arc-shaped and is arranged towards the manhole cover plate 1, the elastic part 53 can adopt a spring, and two ends of the elastic part are respectively fixedly connected with the fixed part 51 and the soft cushion 52. The manhole cover 1 hits the cushion 52 when rotated and is decelerated by the elastic part 53.
In this embodiment, the first telescopic mechanism 3 is a pulley block mechanism, and includes a first pulling cable 31, a first power wheel 32, and at least one first driven wheel 33, where one end of the first pulling cable 31 is wound on the first power wheel 32, and the other end is fixedly connected to the transverse link 24 around the first driven wheel 33. And the last segment of the first lift cable 31 connected to the cross link 24 is preferably maintained in an upright position. The first power wheel 32 and the first driven wheel 33 can be arranged on the side surface of the liquid ammonia tank, or the first power wheel 32 and the first driven wheel 33 can be fixedly connected through a first bracket 34, the first bracket 34 can be fixedly connected to the liquid ammonia tank, or can be connected to the liquid ammonia tank through a sleeve, and the first bracket 34 can rotate in the sleeve along the axis of the sleeve. The first power wheel 32 may be in the form of a hand or an electric motor.
Similar to the first telescoping mechanism 3, in the present embodiment, the second telescoping mechanism 4 is a pulley block mechanism, and includes a second pulling cable 41, a second power wheel 42, and at least one second driven wheel 43, wherein one end of the second pulling cable 41 is wound on the second power wheel 42, and the other end is fixedly connected to the cross link 24 around the second driven wheel 43. And the last section of the second pulling wire 41 connected to the upper link 22 is preferably maintained in a horizontal state. The second power wheel 42 and the second driven wheel 43 may be disposed on a side surface of the liquid ammonia tank, or the second power wheel 42 and the second driven wheel 43 may be connected and fixed by a second bracket 43, the second bracket 43 may be fixedly connected to the liquid ammonia tank, or may be connected to the liquid ammonia tank by a sleeve, and the second bracket 43 may rotate in the sleeve along an axis of the sleeve. The second power wheel 42 may be either manually or electrically powered.
And the first telescopic mechanism 3 and the second telescopic mechanism 4 can share the same bracket, that is, as shown in fig. 1, only holes for the first pulling cable 31 and the second pulling cable 41 to pass through need to be formed at appropriate positions on the bracket.
In a second embodiment, as shown in fig. 3, the first and second telescopic mechanisms share the same carriage 34 '(44') and the same power wheel 32 '(42'). When rotating the power wheel like this, can stimulate manhole door cover board 1 to rotate when promoting manhole door cover board 1, two movements go on simultaneously, only need one section less distance of power output of power wheel, just can remove the manhole door and form an opening that enough people walked with.
The embodiment of the utility model has the following beneficial effects: the lifting device for the manhole door of the liquid ammonia tank can drive the manhole door to move up and down as a cover plate by utilizing the transmission connection of the first telescopic mechanism and the transverse connecting rod, and can also be in transmission connection with the upper connecting rod through the second telescopic mechanism and drive the manhole door cover plate to rotate around the bearing through the bearing; the two movements can also occur simultaneously, so that only a small displacement of the telescopic mechanism is required to form an opening at the manhole door, which is sufficient for people to pass through.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a liquid ammonia tank manhole door hoisting accessory, its installation is on liquid ammonia tank, its characterized in that, it includes: the manhole door comprises a manhole door cover plate, a connecting mechanism, a first telescopic mechanism and a second telescopic mechanism, wherein the connecting mechanism comprises a bearing, an upper connecting rod, a lower connecting rod and a transverse connecting rod, the lower end of the upper connecting rod is fixedly connected with the outer ring of the bearing, the upper end and the lower end of the lower connecting rod are respectively fixedly connected with the outer ring of the bearing and the manhole door cover plate, and one end of the transverse connecting rod is fixedly connected with the inner ring of the bearing; the first telescopic mechanism is in transmission connection with the transverse connecting rod and is used for driving the transverse connecting rod to do lifting motion; the second telescopic mechanism is in transmission connection with the upper connecting rod and is used for driving the outer ring and the inner ring of the bearing to rotate relatively through the upper connecting rod.
2. The liquid ammonia tank manhole door lifting device of claim 1, wherein a sliding groove is formed in the outer side surface of the liquid ammonia tank in the vertical direction, and one end, far away from the bearing, of the transverse connecting rod is inserted into the sliding groove in a sliding manner.
3. The liquid ammonia tank manhole door hoisting device of claim 2, wherein the connecting mechanism further comprises a sliding block movably arranged in the chute, and the sliding block is fixedly connected with one end of the transverse connecting rod, which is far away from the bearing.
4. The liquid ammonia tank manhole door lifting device of claim 3, wherein the first telescoping mechanism is a pulley block mechanism and comprises a first lifting cable, a first power wheel and at least one first driven wheel, one end of the first lifting cable is wound on the first power wheel, and the other end of the first lifting cable bypasses the first driven wheel and is fixedly connected with the transverse connecting rod.
5. The liquid ammonia tank manhole door lifting device of claim 4, wherein the first telescoping mechanism further comprises a first bracket fixedly connected with the liquid ammonia tank, and the first power wheel and the first driven wheel are arranged on the first bracket.
6. The liquid ammonia tank manhole door lifting device of claim 5, wherein the second telescoping mechanism is also a pulley block mechanism, and comprises a second lifting cable, a second power wheel and at least one second driven wheel, wherein one end of the second lifting cable is wound on the second power wheel, and the other end of the second lifting cable bypasses the second driven wheel and is fixedly connected with the upper connecting rod.
7. The liquid ammonia tank manhole door hoisting device of claim 6, wherein the second telescoping mechanism further comprises a second bracket fixedly connected with the liquid ammonia tank, and the second power wheel and the second driven wheel are arranged on the second bracket.
8. The liquid ammonia tank manhole door hoisting device of claim 7, wherein the first telescoping mechanism and the second telescoping mechanism share the same power wheel.
9. The liquid ammonia tank manhole door hoisting device of claim 7, wherein the first telescoping mechanism and the second telescoping mechanism share the same bracket.
10. The liquid ammonia tank manhole door hoisting device of claim 1, further comprising a damping mechanism disposed on one side of the manhole cover plate, wherein the damping mechanism comprises a fixing portion, a cushion and an elastic portion, the fixing portion is fixedly connected with the liquid ammonia tank, the cushion is arc-shaped and is arranged toward the manhole cover plate, and the elastic portion is fixedly connected with the fixing portion and the cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121656317.2U CN216105653U (en) | 2021-07-20 | 2021-07-20 | Liquid ammonia tank manhole door hoisting accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121656317.2U CN216105653U (en) | 2021-07-20 | 2021-07-20 | Liquid ammonia tank manhole door hoisting accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216105653U true CN216105653U (en) | 2022-03-22 |
Family
ID=80723204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121656317.2U Expired - Fee Related CN216105653U (en) | 2021-07-20 | 2021-07-20 | Liquid ammonia tank manhole door hoisting accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216105653U (en) |
-
2021
- 2021-07-20 CN CN202121656317.2U patent/CN216105653U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |