CN108069362B - Scissor type aerial work platform and extending platform locking mechanism and extending platform locking method thereof - Google Patents
Scissor type aerial work platform and extending platform locking mechanism and extending platform locking method thereof Download PDFInfo
- Publication number
- CN108069362B CN108069362B CN201810100893.5A CN201810100893A CN108069362B CN 108069362 B CN108069362 B CN 108069362B CN 201810100893 A CN201810100893 A CN 201810100893A CN 108069362 B CN108069362 B CN 108069362B
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- Prior art keywords
- pedal
- lock tongue
- mounting plate
- lock
- platform
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- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0608—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
The invention provides an extension platform locking mechanism. The extension platform locking mechanism comprises a mounting plate and a lock tongue which is communicated with the upper side wall and the lower side wall of the mounting plate along the mounting plate, a pressure spring is sleeved on the lock tongue, the lower end of the pressure spring is abutted to the lower side wall, a pedal lock is arranged at the upper end of the pressure spring, one end of the pedal lock is connected with the lock tongue through a long screw rod which is communicated with the lock tongue, the other end of the pedal lock is connected with a pedal assembly, and the long screw rod is abutted to the upper end of the pressure spring. Compared with the related art, the locking mechanism of the extension platform is convenient to operate, quick to lock, simple to process and capable of reducing occupied space. The invention also provides a scissor type aerial work platform comprising the extension platform locking mechanism and an extension platform locking method.
Description
Technical Field
The invention relates to the technical field of aerial work equipment, in particular to an extension platform locking mechanism, and also relates to a scissor type aerial work platform comprising the extension platform locking mechanism and an extension platform locking method.
Background
The self-propelled scissor type aerial work platform is widely used for repairing ships, buildings, municipal works, electric power, communication, gardens, advertisements, venues, ports and various large industrial and mineral enterprises, and fully meets the requirements of different clients. The existing self-propelled scissor type aerial work platform is generally provided with an extensible work platform, the locking mechanism of the extending platform of the domestic and foreign self-propelled scissor type aerial work platform is mainly used for welding locking strips on the work platform, the pedal locking mechanism is fixed on the extending platform through a bracket, the whole device is complex, parts are inconvenient to process and install, attractive appearance is not achieved, space is not saved, the locking mode is generally used for locking at the initial, middle and final three positions, and the multi-position locking effect of the extending platform is difficult to achieve.
Disclosure of Invention
The invention aims to solve the defects and the shortcomings in the prior art, and provides an extension platform locking mechanism and a locking method for an extension platform of an aerial work platform, which realize multi-point limiting of the extension platform on the aerial work platform, are beneficial to an operator to adjust the optimal extension distance, solve the problems of complex processing and installation of parts of the original locking mechanism, and reduce the occupied space of the whole locking mechanism.
In order to solve the technical problems, the invention provides an extension platform locking mechanism, which comprises a mounting plate with a notch, and a lock tongue which is vertically accommodated in the notch and penetrates through the upper side wall and the lower side wall of the mounting plate, wherein the lock tongue is sleeved with a pressure spring, the lower end of the pressure spring is abutted against the lower side wall, the upper end of the pressure spring is provided with a pedal lock, one end of the pedal lock is connected with the lock tongue through a long screw rod penetrating through the lock tongue, and the other end of the pedal lock is connected with a pedal assembly; the pedal assembly moves up and down to drive the lock tongue to move up and down through the pedal lock.
Preferably, the pedal lock comprises a lock tongue mounting plate and a pedal mounting plate, wherein the cross section of the lock tongue mounting plate is of a Z-shaped structure, the upper end of the lock tongue mounting plate is connected with a long screw, the lower end of the lock tongue mounting plate is provided with the pedal mounting plate, and the pedal assembly is connected with the pedal mounting plate.
Preferably, the number of the long screws is two, and the long screws are arranged up and down; the upper end and the lower extreme of spring bolt mounting panel all are equipped with along the vertical border vertical extension's of body both sides wall, and upper end and lower extreme lateral wall extending direction are opposite, the both sides wall of upper end is connected with long screw rod to be equipped with the sleeve that is used for restricting its horizontal movement between spring bolt and lateral wall, the sleeve cover is located on the long screw rod of top, the running-board mounting panel is located in the lower extreme both sides wall.
Preferably, the pedal assembly comprises a first pedal and a second pedal hinged with the first pedal and rotating along the first pedal, and the first pedal is connected to the pedal mounting plate far away from the lock tongue mounting plate side.
Preferably, a blocking part for keeping the horizontal position after the second pedal rotates is arranged on the second pedal, the blocking part is abutted with the pedal mounting plate to realize limit after the second pedal rotates, and the first pedal is hinged to the blocking part.
Preferably, the lock further comprises a shaft sleeve, wherein the shaft sleeve is sleeved on the lock tongue and is abutted between the upper end of the pressure spring and the long screw below the pressure spring.
Preferably, a limiting block which is abutted with the lower side wall is arranged at the tail end of the bolt penetrating through the lower side wall, and a round head is arranged above the bolt penetrating through the upper side wall.
The invention also provides a scissor type aerial work platform, which comprises a main platform, an extension platform and any one of the extension platform locking mechanisms, wherein the extension platform extends and displaces along the main platform through a main platform guide rail, a mounting plate of the extension platform locking mechanism is connected to the extension platform through a fixing plate and is close to the position of the main platform guide rail, and a lock hole matched with the upper part of a lock tongue is formed in the main platform guide rail.
Preferably, the number of the lock holes is a plurality of, and the lock holes are arranged at intervals.
The invention also provides an extension platform locking method of the scissor type aerial work platform, which comprises the following steps:
1) When the extension platform needs to be pushed forwards or backwards, the second pedal is rotated to be in a horizontal position, and the blocking part of the second pedal is abutted against the pedal mounting plate so as to realize limiting;
2) The second pedal is stepped down by feet, and the pedal assembly drives the lock tongue mounting plate to move downwards;
3) The lock tongue mounting plate is provided with a long screw rod penetrating through the lock tongue, and the long screw rod drives the lock tongue to move downwards together;
4) The shaft sleeve is sleeved on the lock tongue and is abutted between the upper end of the pressure spring and the long screw below the lock tongue, and the long screw moves downwards to drive the shaft sleeve to compress the pressure spring downwards;
5) When the lock tongue is separated from the lock hole of the main platform guide rail, the extension platform is pushed forward or backward until the lock tongue reaches the lock hole of the next main platform guide rail, the feet are loosened, and under the action of the pressure spring, the lock tongue is pushed to move upwards and is inserted into the lock hole to finish the operation.
Compared with the related art, the invention has the beneficial effects that:
1. the locking function of the extension platform is realized through the locking mechanism of the extension platform, so that the convenient limiting locking function in the pushing-out and withdrawing processes of the extension platform is realized, and the injury caused by the forward and backward sliding of an operator is avoided;
2. the multi-point locking limit of the extension platform is realized through the extension platform locking mechanism, so that a convenient and suitable extension platform locking state for operators is provided, and the operators can conveniently adjust the optimal construction position;
3. the problem that parts of the original locking mechanism are complex to process and install can be solved through the extension platform locking mechanism, and the occupied space of the whole locking mechanism is reduced;
4. the extension platform locking mechanism is used for a scissor type aerial work platform, does not affect folding of the whole platform, and is beneficial to the whole vehicle to pass through the short door.
Drawings
FIG. 1 is a schematic structural view of a scissor aerial work platform mounting extension platform locking mechanism provided by the invention;
FIG. 2 is an enlarged view of the portion I in FIG. 1;
fig. 3 is a schematic structural view of an extension platform locking mechanism provided by the invention;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a cross-sectional view taken along B-B of FIG. 4;
fig. 6 is a working schematic diagram of the locking mechanism of the extension platform provided by the invention.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.
Referring to fig. 1 and fig. 2, a schematic structural diagram of a locking mechanism of an extension platform installed on a scissor aerial platform according to the present invention is shown, and fig. 2 is an enlarged view of a position I in fig. 1. The scissor type aerial work platform comprises a main platform (not numbered), an extension platform (not numbered) and an extension platform locking mechanism 3 which is fixed on the extension platform through a fixing plate 2 and is adjacent to a position of a main platform guide rail 1. I.e. displacement of the extension platform is achieved by the main platform rail 1, while its position definition on the main platform is achieved by the extension platform locking mechanism 3.
Referring to fig. 3, fig. 4, and fig. 5, fig. 3 is a schematic structural diagram of an extension platform locking mechanism provided by the present invention; FIG. 4 is a left side view of FIG. 3; fig. 5 is a cross-sectional view taken along B-B of fig. 4, the extended platform locking mechanism including a mounting plate 31, bolts 32, foot pedal lock 33, foot pedal assembly 34, long screw 35, spacer 36, self-locking nut 37, locking tongue 38, compression spring 39, sleeve 40, and sleeve 41.
The mounting plate 31 is provided with a notch, and the mounting plate 31 is connected with the fixed plate 2 to fix the extension platform locking mechanism. As shown in fig. 4, the mounting plate 31 has upper and lower side walls, and an upper side wall of the main platform rail 1 is located above the upper side wall.
The lock tongue 38 is accommodated in the notch of the mounting plate 31 and penetrates the upper and lower side walls. The end of the lock tongue 38 penetrating through the lower side wall is provided with a limiting block (not numbered) which is abutted with the lower side wall, and the upper part of the lock tongue 38 penetrating through the upper side wall is a round head.
As shown in fig. 2, the main platform rail is provided with a plurality of lock holes (not numbered) matched with the upper part of the lock tongue 38, and the lock holes are arranged at intervals, so that a multi-point locking and limiting function can be realized.
Referring to fig. 3, 4 and 5 again, the spring bolt 38 is sleeved with the spring 39, the lower end of the spring 39 abuts against the lower side wall of the mounting plate 31, and the pedal lock 33 is arranged at the upper end of the spring 39.
The foot lock 33 includes a lock tongue mounting plate 331 and a pedal mounting plate 332, and the cross section of the lock tongue mounting plate 331 is in a zigzag structure, thereby forming an upper end, a lower end, and a body connected to the upper end and the lower end. The upper end and the lower end of the lock tongue mounting plate 331 are respectively provided with two side walls extending vertically along the vertical edge of the body, and the extending directions of the side walls of the upper end and the lower end are opposite (as shown in fig. 4). The number of the long screws 35 is two, and the long screws are arranged up and down and penetrate through the lock tongue 38. The upper end of the lock tongue mounting plate 331 is connected with a long screw 35 arranged above the lock tongue mounting plate through a gasket 36 and a self-locking nut 37. The number of the sleeves 40 is two, and the sleeves are sleeved on the long screw rod 35 arranged above and respectively abut against the lock tongue 38 and the two side walls at the upper end of the lock tongue mounting plate 331. The sleeve 40 is used to limit the lateral movement of the latch mounting plate 331.
The pedal plate mounting plate 332 is mounted in two side walls of the lower end of the lock tongue mounting plate 331, and the pedal plate assembly 34 is connected with the pedal plate mounting plate 332.
The footrest assembly 34 includes a first foot pedal 342 and a second foot pedal 341 hinged to and rotatable along the first foot pedal 342, the first foot pedal 341 being connected to the footrest mounting plate 332 on a side remote from the tongue mounting plate 331 by a bolt 32.
The second foot pedal 341 is provided with a stopper (not shown) for maintaining the horizontal position after the rotation of the second foot pedal 341. After the rotation, the blocking part abuts against the pedal mounting plate 332 to realize limit, and the first pedal 342 is hinged at the blocking position, that is, the second pedal 341 is rotatable along the hinge point, and keeps the horizontal position below the left and right of the blocking part.
The sleeve 41 is sleeved on the lock tongue 38 and is abutted between the upper end of the pressure spring 39 and the long screw 35 arranged below. The up and down movement of the foot pedal assembly 34 moves the tongue 38 up and down.
Referring to fig. 6, which is a schematic diagram illustrating an operation of an extension platform locking mechanism provided by the present invention, the extension platform locking method of a scissor type aerial work platform provided by the present invention includes:
step S1: when the extension platform needs to be pushed forward or backward, the second foot pedal 341 is rotated (clockwise in fig. 6) to be in a horizontal position, and the blocking portion abuts against the foot pedal mounting plate 332 to achieve the limit.
Step S2: the foot steps down on the second foot pedal 341, and the pedal assembly 34 drives the lock tongue mounting plate 331 to move downward.
Step S3: the bolt mounting plate 331 is provided with a long screw rod 35 penetrating the bolt 38, and the long screw rod 35 drives the bolt 38 to move downwards together.
Step S4: the shaft sleeve 41 is sleeved on the lock tongue 38 and is abutted between the upper end of the pressure spring 39 and the long screw rod 35 arranged below the lock tongue, and the long screw rod 35 moves downwards to drive the shaft sleeve 41 to compress the pressure spring 39 downwards.
Step S5: when the lock tongue 38 is separated from the lock hole of the main platform guide rail, the extension platform is pushed forward or backward until the lock tongue 38 reaches the lock hole of the next main platform guide rail, the foot is released, and under the action of the pressure spring 39, the lock tongue 38 is pushed to move upwards, and the operation is completed after the lock tongue is inserted into the lock hole.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (4)
1. The extension platform locking mechanism is characterized by comprising a mounting plate with a notch, and a lock tongue which is vertically accommodated in the notch and penetrates through the upper side wall and the lower side wall of the mounting plate, wherein the lock tongue is sleeved with a pressure spring, the lower end of the pressure spring is abutted to the lower side wall, the upper end of the pressure spring is provided with a pedal lock, one end of the pedal lock is connected with the lock tongue through a long screw rod penetrating through the lock tongue, and the other end of the pedal lock is connected with a pedal assembly; the pedal assembly moves up and down to drive the lock tongue to move up and down through the pedal lock;
the pedal lock comprises a lock tongue mounting plate and a pedal mounting plate, wherein the cross section of the lock tongue mounting plate is of a Z-shaped structure, the upper end of the lock tongue mounting plate is connected with a long screw, the lower end of the lock tongue mounting plate is provided with the pedal mounting plate, and the pedal assembly is connected with the pedal mounting plate;
the number of the long screws is two, and the long screws are arranged up and down; the upper end and the lower end of the lock tongue mounting plate are respectively provided with two side walls extending vertically along the vertical edge of the body, the extending directions of the side walls of the upper end and the lower end are opposite, the two side walls of the upper end are connected with the long screw rod, a sleeve used for limiting the left and right movement of the lock tongue is arranged between the lock tongue and the side walls, the sleeve is sleeved on the long screw rod above, and the pedal mounting plate is arranged in the two side walls of the lower end;
the pedal assembly comprises a first pedal and a second pedal hinged with the first pedal and rotating along the first pedal, and the first pedal is connected to the pedal mounting plate side far away from the lock tongue mounting plate;
the second pedal is provided with a blocking part for keeping the horizontal position after rotating, the blocking part is abutted with the pedal mounting plate to realize limit after rotating, and the first pedal is hinged to the blocking part;
the shaft sleeve is sleeved on the lock tongue and is abutted between the upper end of the pressure spring and the long screw below the pressure spring;
the end of the lock tongue penetrating through the lower side wall is provided with a limiting block which is in butt joint with the lower side wall, and the upper part of the lock tongue penetrating through the upper side wall is a round head.
2. The utility model provides a scissor type aerial work platform, includes main platform and through main platform guide rail along the extension platform of main platform extension displacement, its characterized in that still includes the extension platform locking mechanism of claim 1, the mounting panel of extension platform locking mechanism is connected on the extension platform and is close to main platform guide rail position department through the fixed plate, be equipped with on the main platform guide rail with spring bolt top complex lockhole.
3. The scissor aerial work platform of claim 2 wherein the number of locking apertures is a plurality, spaced apart.
4. A method of locking an extended platform of a scissor lift platform as claimed in claim 2 or claim 3, comprising:
1) When the extension platform needs to be pushed forwards or backwards, the second pedal is rotated to be in a horizontal position, and the blocking part of the second pedal is abutted against the pedal mounting plate so as to realize limiting;
2) The second pedal is stepped down by feet, and the pedal assembly drives the lock tongue mounting plate to move downwards;
3) The lock tongue mounting plate is provided with a long screw rod penetrating through the lock tongue, and the long screw rod drives the lock tongue to move downwards together;
4) The shaft sleeve is sleeved on the lock tongue and is abutted between the upper end of the pressure spring and the long screw below the lock tongue, and the long screw moves downwards to drive the shaft sleeve to compress the pressure spring downwards;
5) When the lock tongue is separated from the lock hole of the main platform guide rail, the extension platform is pushed forward or backward until the lock tongue reaches the lock hole of the next main platform guide rail, the feet are loosened, and under the action of the pressure spring, the lock tongue is pushed to move upwards and is inserted into the lock hole to finish the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810100893.5A CN108069362B (en) | 2018-02-01 | 2018-02-01 | Scissor type aerial work platform and extending platform locking mechanism and extending platform locking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810100893.5A CN108069362B (en) | 2018-02-01 | 2018-02-01 | Scissor type aerial work platform and extending platform locking mechanism and extending platform locking method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108069362A CN108069362A (en) | 2018-05-25 |
| CN108069362B true CN108069362B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810100893.5A Active CN108069362B (en) | 2018-02-01 | 2018-02-01 | Scissor type aerial work platform and extending platform locking mechanism and extending platform locking method thereof |
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| Country | Link |
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| CN (1) | CN108069362B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951129A (en) * | 2011-08-29 | 2013-03-06 | 北汽福田汽车股份有限公司 | Locking device used for locking support leg in engineering machine |
| CN204752130U (en) * | 2015-04-13 | 2015-11-11 | 徐工集团工程机械股份有限公司 | Aerial working platform extends platform with full stroke locking means |
| CN206395801U (en) * | 2017-01-05 | 2017-08-11 | 诺力机械股份有限公司 | A kind of displacement regulation and locking device suitable for aerial work platform |
| CN206615977U (en) * | 2017-03-24 | 2017-11-07 | 苏州智米高装备科技有限公司 | A kind of platform stretches locking system |
| CN207890966U (en) * | 2018-02-01 | 2018-09-21 | 湖南杰希重工有限公司 | Scissor aerial work platform and its extendable platform lockable mechanism |
| CN208200300U (en) * | 2018-04-26 | 2018-12-07 | 北京中农富通园艺有限公司 | A kind of foldable balanced lift work vehicle |
-
2018
- 2018-02-01 CN CN201810100893.5A patent/CN108069362B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951129A (en) * | 2011-08-29 | 2013-03-06 | 北汽福田汽车股份有限公司 | Locking device used for locking support leg in engineering machine |
| CN204752130U (en) * | 2015-04-13 | 2015-11-11 | 徐工集团工程机械股份有限公司 | Aerial working platform extends platform with full stroke locking means |
| CN206395801U (en) * | 2017-01-05 | 2017-08-11 | 诺力机械股份有限公司 | A kind of displacement regulation and locking device suitable for aerial work platform |
| CN206615977U (en) * | 2017-03-24 | 2017-11-07 | 苏州智米高装备科技有限公司 | A kind of platform stretches locking system |
| CN207890966U (en) * | 2018-02-01 | 2018-09-21 | 湖南杰希重工有限公司 | Scissor aerial work platform and its extendable platform lockable mechanism |
| CN208200300U (en) * | 2018-04-26 | 2018-12-07 | 北京中农富通园艺有限公司 | A kind of foldable balanced lift work vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108069362A (en) | 2018-05-25 |
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