CN215368648U - Lifting type safety protection device for end part of lifting platform - Google Patents
Lifting type safety protection device for end part of lifting platform Download PDFInfo
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- CN215368648U CN215368648U CN202120114511.1U CN202120114511U CN215368648U CN 215368648 U CN215368648 U CN 215368648U CN 202120114511 U CN202120114511 U CN 202120114511U CN 215368648 U CN215368648 U CN 215368648U
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Abstract
The utility model relates to a lifting safety protection device at the end part of a lifting platform, which comprises a protection door positioned at the end part of the lifting platform and a lifting device arranged below the table top of the lifting platform; the lifting device is used for driving the protection door to lift so as to enable the protection door to ascend to the position above the table board of the lifting platform and enable the protection door to descend to the position below the table board of the lifting platform; through grooves are formed in the two end parts of the lifting platform, and the through grooves are used for enabling the protective door to pass through a passage of the lifting platform when the protective door is lifted; the two ends of the protective door are symmetrically provided with door posts, the opposite side surfaces of the two door posts are provided with lifting through grooves, and the lifting through grooves are used as lifting tracks of the protective door. The utility model has the advantages of stable lifting operation, controllable lifting height and high safety protection coefficient.
Description
Technical Field
The utility model relates to the field of fixed scissor type lifting platform machinery, in particular to a lifting type safety protection device for an end part of a lifting platform.
Background
The fixed scissor-type lifting platform has height change in the working state, the end part of the fixed scissor-type lifting platform is provided with a safety protection device, and if the long edge of the platform is parallel to equipment or facilities (structures) on two sides, the safety protection device on the end part of the fixed scissor-type lifting platform is set to be lifting so that a person can conveniently enter the range of the table top and carry articles.
The safe lifting device for building construction, as disclosed in chinese patent CN209127964U, including rail guard, base, lift platform, the walking wheel is installed through the shaft in the bottom of base, the installation piece is installed to the base bottom of walking wheel one side, the internally mounted of installation piece has the second pneumatic cylinder, the landing leg is installed through the second piston rod to the output of second pneumatic cylinder, the bottom of landing leg is provided with the skid resistant course, the weight box is installed to the top of base, the stand is installed to the base top of protective housing one side, the internally mounted of stand has first pneumatic cylinder, lift platform is installed through first piston rod to the output of first pneumatic cylinder, lift platform's top welding has the rail guard, the guard gate is installed through the hinge on the surface of rail guard. Above-mentioned guard gate among the prior art is door leaf formula mode of opening and shutting, then inconvenient entering and leaving mesa scope when personnel carry large-scale article or detection utensil.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lifting safety protection device at the end part of a lifting platform, so as to solve the defects in the prior art, and the technical problem to be solved by the utility model is realized by the following technical device.
The lifting safety protection device at the end part of the lifting platform comprises a protection door positioned at the end part of the lifting platform and a lifting device arranged below the table top of the lifting platform; the lifting device is used for driving the protection door to lift so as to enable the protection door to ascend to the position above the table board of the lifting platform and enable the protection door to descend to the position below the table board of the lifting platform; through grooves are formed in the two end parts of the lifting platform, and the through grooves are used for enabling the protective door to pass through a passage of the lifting platform when the protective door is lifted; the two ends of the protective door are symmetrically provided with door posts, the opposite side surfaces of the two door posts are provided with lifting through grooves, and the lifting through grooves are used as lifting tracks of the protective door.
Preferably, a cover plate is arranged above the through groove of the lifting platform, the cover plate is connected with a second motor, the second motor is located below the table board of the lifting platform, and the second motor is used for opening and closing the cover plate.
Preferably, the gate post is of a telescopic structure, the end part of the gate post can rise above the table top of the lifting platform when the gate post is extended, and the end part of the gate post can fall below the table top of the lifting platform when the gate post is retracted.
Preferably, the lifting device comprises a first motor arranged below the platform surface of the lifting platform, a speed reducer connected with the first motor, a gear connected with the speed reducer and a rack matched with the gear, and the rack is connected with the protective door.
Preferably, the lifting device comprises a first motor arranged below the platform surface of the lifting platform, a speed reducer connected with the first motor and a worm gear screw rod lifter connected with the speed reducer, and a screw rod of the worm gear screw rod lifter is connected with the protective door.
Preferably, the lifting device comprises a first motor arranged below the platform surface of the lifting platform, a speed reducer connected with the first motor and a winch connected with the speed reducer, and a lifting rope of the winch penetrates through a fixed pulley positioned at the upper end of the doorpost and then is connected with the protective door.
Preferably, the lifting device comprises a first motor arranged below the table top of the lifting platform, a speed reducer connected with the first motor and a chain device connected with the speed reducer, the chain device comprises a first gear connected with one end of the speed reducer, a second gear arranged at the upper end of the gate post and a chain connected with the first gear and the second gear, and the chain is connected with the protective gate.
Preferably, the lifting device comprises a hydraulic oil cylinder positioned below the table board of the lifting platform, and a piston rod of the hydraulic oil cylinder is connected with the protective door and pushes the protective door to move up and down in the lifting through groove.
Preferably, the lifting device comprises a first motor located below the platform surface of the lifting platform, a speed reducer connected with the first motor, a bevel gear connected with the speed reducer, a crank disc matched with the bevel gear and a connecting rod connected with the crank disc, and the other end of the connecting rod is connected with the protective door.
Preferably, the height of the protective door above the platform surface of the lifting platform is not less than 1.1 m.
According to the lifting type safety protection device at the end part of the lifting platform, the height of the lifting platform is flush with the height of the ground or a building surface outside the platform before the lifting platform is lifted, and at the moment, the protection door is completely descended below the lifting platform, so that personnel carrying equipment can conveniently enter the range of a table board, and the personnel can conveniently carry articles; when the lifting platform needs to be lifted for work, the protective door is driven by the lifting device to be lifted above the lifting platform surface, the safety protection height of the protective door is not less than 1.1m, the protective door can effectively play a safety protection role on personnel in the range of the platform surface, and the personnel or articles are prevented from falling; the gear rack lifting device, the worm gear lead screw lifting device, the hydraulic oil cylinder pushing and recovering device, the winch steel wire rope lifting device, the gear chain lifting device and the crank connecting rod pushing and pulling lifting device have the advantages of stable lifting operation and controllable lifting height; before the guard gate rises, the apron of second motor drive lift platform's logical groove top is opened, and after the guard gate goes up and down to the safety protection height, second motor drive apron was closed, and it is inside to avoid the less article of volume to drop into the lift platform structure from the lift passageway of guard gate.
In conclusion, the lifting type safety protection device at the end part of the lifting platform has the advantages of stable lifting operation, controllable lifting height and high safety protection coefficient.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 4 of the present invention;
FIG. 5 is a schematic structural view of example 5 of the present invention;
FIG. 6 is a schematic structural view of example 6 of the present invention;
in fig. 1 to 6, the left half is shown as a schematic view of the ascending state of the protection door, and the right half is shown as a schematic view of the descending state of the protection door;
the reference numbers in the drawings are, in order: 1. the safety door comprises a protective door body, 2, a lifting platform, 3, a door post, 31, a lifting through groove, 4, a cover plate, 5, a second motor, 6, a first motor, 7, a speed reducer, 8, a gear, 9, a rack, 10, a worm gear-screw lifter, 101, a screw rod, 11, a hydraulic oil cylinder, 111, a piston rod, 12, a winch, 13, a chain device, 131, a first gear, 132, a second gear, 133, a chain, 14, a bevel gear, 15, a crank disc, 151, an eccentric post, 16 and a connecting rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 6, the lifting safety protection device for the end of the lifting platform is improved in that: comprises a protective door 1 positioned at the end part of a lifting platform 2 and a lifting device arranged below the table top of the lifting platform 2; the lifting device is used for driving the protection door 1 to lift so as to enable the protection door 1 to rise above the table top of the lifting platform 2 and enable the protection door 1 to fall below the table top of the lifting platform 2; through grooves are formed in the two end portions of the lifting platform 2 and used for enabling the protective door 1 to pass through a passage of the lifting platform 2 when the protective door 1 is lifted; the two ends of the protective door 1 are symmetrically provided with door posts 3, the opposite side surfaces of the two door posts 3 are provided with lifting through grooves 31, and the lifting through grooves 31 serve as lifting rails of the protective door 1.
According to the lifting safety protection device for the end part of the lifting platform, before the lifting platform 2 is lifted, the height of the lifting platform is flush with the height of the ground or a building surface outside the platform, at the moment, the protection door 1 is completely lowered below the lifting platform 2, so that personnel carrying equipment can conveniently enter the range of a table top, and the personnel can conveniently carry articles; when the lifting platform 2 needs to be lifted for work, the protective door 1 is driven by the lifting device to ascend to the lifting table top to the safety protection height, so that the safety protection effect can be effectively realized on personnel and articles in the range of the table top, and the falling of the personnel or the articles is avoided.
Further, the top of the through groove of the lifting platform 2 is provided with a cover plate 4, the cover plate 4 is connected with a second motor 5, the second motor 5 is positioned below the table board of the lifting platform 2, and the second motor 5 is used for opening and closing the cover plate 4. Before protective door 1 rises, apron 4 on the lift track of second motor 5 drive protective door 1 is opened, and after protective door 1 goes up and down to the safety protection height, second motor 5 drive apron 4 is closed, avoids the less article of volume to drop into inside the lift platform structure from the lift passageway of protective door.
Further, the doorpost 3 is of a telescopic structure, when the doorpost 3 extends, the end of the doorpost 3 can rise above the table top of the lifting platform 2, and when the doorpost 3 contracts, the end of the doorpost 3 can fall below the table top of the lifting platform 2. The telescopic structure of the doorpost 3 enables the space at the entrance of the platform table to be larger, and personnel or large-scale equipment can enter the range of the platform table more conveniently.
Further, the height of the protective door 1 which is lifted to the position above the table top of the lifting platform 2 is not less than 1.1 m.
Example 1:
in this embodiment, the lifting device is further described, and as shown in fig. 1, the lifting device includes a first motor 6 disposed below the top surface of the lifting platform 2, a speed reducer 7 connected to the first motor 6, a gear 8 connected to the speed reducer 7, and a rack 9 engaged with the gear 8, where the rack 9 is connected to the protective door 1.
In the lifting device in the embodiment, when the protective door 1 is lifted, the door post 3 is firstly extended to be above the table top of the lifting platform 2, the first motor 6 is started in the forward direction, the first motor 6 drives the speed reducer 7 to rotate and conduct to the gear 8, the gear 8 rotates to pull the rack 9 to lift, the protective door 1 is driven to lift to the safety protection height, and the first motor 6 stops rotating; when the protective door descends, the first motor 6 is started reversely, the first motor 6 drives the speed reducer 7 to rotate and conduct to the gear 8, the gear 8 rotates to pull the rack 9 to descend, and the protective door is driven to completely descend below the table top of the lifting platform 2. The motor drives the gear rack lifting device to ensure that the protective door is stable in lifting operation and controllable in lifting height.
Example 2:
in this embodiment, the lifting device is further described, and referring to fig. 2, the lifting device includes a first motor 6 disposed below the top of the lifting platform 2, a speed reducer 7 connected to the first motor 6, and a worm-and-screw elevator 10 connected to the speed reducer 7, and a screw 101 of the worm-and-screw elevator 10 is connected to the protective door 1.
In the lifting device in the embodiment, when the protective door 1 is lifted, the door post 3 is firstly extended to be above the table surface of the lifting platform 2, the first motor 6 is started in the forward direction, the first motor 6 drives the speed reducer 7 to rotate and is conducted to the worm screw lifting machine 10, the worm screw lifting machine 10 rotates the screw 101 to enable the screw 101 to extend upwards, so that the protective door is driven to be lifted to the safety protection height, and the first motor 6 stops rotating; when the protective door descends, the first motor 6 is started reversely, the first motor 6 drives the speed reducer 7 to rotate and conduct to the worm gear lead screw lifter 10, the worm gear lead screw lifter 10 rotates the lead screw 101 to enable the lead screw 101 to retract downwards, the protective door is driven to completely descend below the table top of the lifting platform 2, and the first motor 6 stops rotating. The motor drives the worm wheel screw rod lifting device to ensure that the protective door is stable in lifting operation and controllable in lifting height.
Example 3:
in this embodiment, the lifting device is further described, and as shown in fig. 3, the lifting device includes a first motor 6 disposed below the top surface of the lifting platform 2, a speed reducer 7 connected to the first motor 6, and a hoisting machine 12 connected to the speed reducer 7, and a hoisting rope of the hoisting machine 12 passes through a fixed pulley at the upper end of the door post 3 and then is connected to the protective door 1.
In the lifting device in this embodiment, when the protective door 1 ascends, the first motor 6 is started in the forward direction, the first motor 6 drives the speed reducer 7 to rotate and conduct to the winch 12, the winch 12 drives the protective door 1 to ascend to the safety protection height, and the first motor 6 stops rotating; when the protective door descends, the first motor 6 is started reversely, the first motor 6 drives the speed reducer 7 to rotate and conduct to the winch 12, the winch 12 drives the protective door 1 to completely descend below the table board of the lifting platform 2, and the first motor 6 stops rotating. The motor drives the winch lifting device to ensure that the protective door can stably lift and operate and the lifting height can be controlled.
Example 4:
in this embodiment, the lifting device is further described, referring to fig. 4, the lifting device includes a first motor 6 disposed below the top surface of the lifting platform 2, a speed reducer 7 connected to the first motor 6, and a chain device 13 connected to the speed reducer 7, the chain device 13 includes a first gear 131 connected to one end of the speed reducer 7, a second gear 132 disposed at the upper end of the door post 3, and a chain 133 connecting the first gear 131 and the second gear 132, and the chain 133 is connected to the protective door 1.
In the lifting device in this embodiment, when the protective door 1 is lifted, the first motor 6 is started in the forward direction, the first motor 6 drives the speed reducer 7 to rotate and conduct to the first gear 131, the first gear 131 drives the second gear 132 to rotate through the chain 133, the chain 133 drives the protective door 1 to be lifted to the safety protection height while rotating, and the first motor 6 stops rotating; when the protective door descends, the first motor 6 is started reversely, the first motor 6 drives the speed reducer 7 to rotate and conduct the first gear 131, the first gear 131 drives the second gear 132 to rotate through the chain 133, the chain 133 drives the protective door 1 to completely descend below the table top of the lifting platform 2 while rotating, and the first motor 6 stops rotating. The motor drives the gear chain lifting device to ensure that the protective door is stable in lifting operation and controllable in lifting height.
Example 5:
in this embodiment, the lifting device is further described, and as shown in fig. 5, the lifting device includes a hydraulic oil cylinder 11 located below the top surface of the lifting platform 2, and a piston rod 111 of the hydraulic oil cylinder is connected to the protective door 1 and pushes the protective door 1 to move up and down in the lifting through groove 31.
In the lifting device in the embodiment, when the protective door 1 is lifted, the door post 3 is firstly extended to be above the table surface of the lifting platform 2, the hydraulic oil cylinder 11 is started, the piston rod 111 is pushed to move upwards, and the piston rod 111 drives the protective door to be lifted to the safety protection height; when the protective door descends, the hydraulic oil cylinder 11 drives the piston rod 111 to retract, so that the protective door 1 is driven to completely descend below the table top of the lifting platform 2. The hydraulic oil cylinder pushes and recovers the lifting device, so that the protective door is stable in lifting operation and controllable in lifting height.
Example 6:
in this embodiment, the lifting device is further described, and as shown in fig. 6, the lifting device includes a first motor 6 located below the top surface of the lifting platform 2, a speed reducer 7 connected to the first motor 6, a bevel gear 14 connected to the speed reducer 7, a crank disc 15 matched to the bevel gear 14, and a connecting rod 16 connected to the crank disc 15, and the other end of the connecting rod 16 is connected to the protective door 1.
According to the lifting device provided by the embodiment, when the protective door 1 is lifted, the first motor 6 is started in the forward direction, the first motor 6 drives the speed reducer 7 to rotate and conduct to the bevel gear 14, the bevel gear 14 drives the crank disc 15 to rotate, the crank disc 15 is provided with the eccentric column 151, the eccentric column is connected with one end of the connecting rod 16, the other end of the connecting rod 16 is connected with the protective door 1, and when the crank disc 15 rotates, the eccentric column 151 drives the connecting rod 16 to be straightened, so that the protective door is pushed to be lifted to the safety protection height; when the protective door descends, the first motor 6 is started reversely, the first motor 6 drives the speed reducer 7 to rotate and conduct the speed reducer to the bevel gear 14, the bevel gear 14 drives the crank disc 15 to rotate, and the eccentric column 151 drives the connecting rod 16 to bend, so that the protective door is driven to descend below the table top of the lifting platform 2. The crank connecting rod pushes and pulls the lifting device back, so that the protective door can be stably lifted and operated, and the lifting height can be controlled.
It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein.
Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways, such as by rotating it 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.
In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components, unless context dictates otherwise. The illustrated implementations described in the detailed description, drawings, and claims are not meant to be limiting. Other implementations may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Lift platform tip over-and-under type safety device, its characterized in that: comprises a protective door (1) positioned at the end part of a lifting platform (2) and a lifting device arranged below the table top of the lifting platform (2); the lifting device is used for driving the protection door (1) to lift so as to enable the protection door (1) to rise above the table top of the lifting platform (2) and enable the protection door (1) to fall below the table top of the lifting platform (2); through grooves are formed in the two end parts of the lifting platform (2), and the through grooves are used for enabling the protective door (1) to pass through a channel of the lifting platform (2) when the protective door (1) is lifted; the two ends of the protective door (1) are symmetrically provided with door posts (3), the opposite side surfaces of the two door posts (3) are provided with lifting through grooves (31), and the lifting through grooves (31) serve as lifting rails of the protective door (1).
2. The lift platform end lift safety guard of claim 1, wherein: the top in logical groove of lift platform (2) is equipped with apron (4), apron (4) are connected with second motor (5), second motor (5) are located the mesa below of lift platform (2), second motor (5) are used for opening and closing of apron (4).
3. The lift platform end lift safety guard of claim 1, wherein: the doorpost (3) is of a telescopic structure, the end part of the doorpost (3) can rise to the position above the table board of the lifting platform (2) when the doorpost (3) extends, and the end part of the doorpost (3) can fall to the position below the table board of the lifting platform (2) when the doorpost (3) contracts.
4. The lift platform end lift safety guard of claim 1, wherein: the lifting device comprises a first motor (6) arranged below the table top of the lifting platform (2), a speed reducer (7) connected with the first motor (6), a gear (8) connected with the speed reducer (7) and a rack (9) matched with the gear (8), wherein the rack (9) is connected with the protective door (1).
5. The lift platform end lift safety guard of claim 1, wherein: the lifting device comprises a first motor (6) arranged below the table top of the lifting platform (2), a speed reducer (7) connected with the first motor (6) and a worm gear screw rod lifter (10) connected with the speed reducer (7), and a screw rod (101) of the worm gear screw rod lifter (10) is connected with the protective door (1).
6. The lift platform end lift safety guard of claim 1, wherein: the lifting device comprises a first motor (6) arranged below the table top of the lifting platform (2), a speed reducer (7) connected with the first motor (6) and a winch (12) connected with the speed reducer (7), wherein a lifting rope of the winch (12) penetrates through a fixed pulley at the upper end of the doorpost (3) and then is connected with the protective door (1).
7. The lift platform end lift safety guard of claim 1, wherein: the lifting device comprises a first motor (6) arranged below a table top of the lifting platform (2), a speed reducer (7) connected with the first motor (6) and a chain device (13) connected with the speed reducer (7), wherein the chain device (13) comprises a first gear (131) connected with one end of the speed reducer (7), a second gear (132) arranged at the upper end of a gate post (3) and a chain (133) connected with the first gear (131) and the second gear (132), and the chain (133) is connected with the protective gate (1).
8. The lift platform end lift safety guard of claim 1, wherein: the lifting device comprises a hydraulic oil cylinder (11) positioned below the table board of the lifting platform (2), and a piston rod (111) of the hydraulic oil cylinder is connected with the protective door (1) and pushes the protective door (1) to move up and down in the lifting through groove (31).
9. The lift platform end lift safety guard of claim 1, wherein: the lifting device comprises a first motor (6) positioned below the table top of the lifting platform (2), a speed reducer (7) connected with the first motor (6), a bevel gear (14) connected with the speed reducer (7), a crank disc (15) matched with the bevel gear (14) and a connecting rod (16) connected with the crank disc (15), wherein the other end of the connecting rod (16) is connected with the protective door (1).
10. The elevating platform end lift safety guard of any one of claims 1-9, wherein: the height of the protective door (1) which rises to the upper part of the table top of the lifting platform (2) is not less than 1.1 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120114511.1U CN215368648U (en) | 2021-01-16 | 2021-01-16 | Lifting type safety protection device for end part of lifting platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120114511.1U CN215368648U (en) | 2021-01-16 | 2021-01-16 | Lifting type safety protection device for end part of lifting platform |
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| CN215368648U true CN215368648U (en) | 2021-12-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045488A (en) * | 2022-07-01 | 2022-09-13 | 张海滨 | Equipment is set up with steelframe to basic station construction for communication engineering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045488A (en) * | 2022-07-01 | 2022-09-13 | 张海滨 | Equipment is set up with steelframe to basic station construction for communication engineering |
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