CN203144040U - Scissor-type lifting platform and height detector thereof - Google Patents
Scissor-type lifting platform and height detector thereof Download PDFInfo
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- CN203144040U CN203144040U CN 201320176795 CN201320176795U CN203144040U CN 203144040 U CN203144040 U CN 203144040U CN 201320176795 CN201320176795 CN 201320176795 CN 201320176795 U CN201320176795 U CN 201320176795U CN 203144040 U CN203144040 U CN 203144040U
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- Prior art keywords
- fork
- scissor
- chute
- lifting platform
- yoke
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- 230000003028 elevating effect Effects 0.000 claims description 22
- 210000002421 cell wall Anatomy 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a scissor-type lifting platform and a height detector of the scissor-type lifting platform. The height detector comprises an absolute type encoder, wherein the absolute type encoder is used for being fixedly arranged on one of two scissor arms which are distributed in the vertical direction and are hinged to each other. An oscillating bar which is used for driving a power input shaft to rotate is correspondingly assembled on the power input shaft of the absolute type encoder. The height detector further comprises a supporting block, wherein the supporting block is used for being fixedly arranged on the other scissor arm of the two scissor arms, and the supporting block is matched with the oscillating bar in a supporting top-pressing mode and matched with the oscillating bar in a guiding moving mode in the extension direction of the oscillating bar. The absolute type encoder is provided with a signal output end which is used for being electrically connected with a lifting controller of the lifting platform and/or being electrically connected with an indicator for displaying the height of the lifting platform. The oscillating bar and the absolute type encoder are used for detecting change of positions of the two scissor arms, then the actual height of the lifting platform is achieved, the tip-over accident is prevented, and safety of the lifting platform is improved.
Description
Technical field
The utility model belongs to the lifting table technical field, is specifically related to a kind of scissor-type lifting platform and is applied in height detecting device on the lifting table.
Background technology
Lifting table is a kind of multi-functional lifting loading-unload machine equipment, and along with the development of social science and technology, lifting table has spread to each corner of social life, uses more and more widely.A kind of scissor-type lifting platform is arranged in the lifting table, its keystone configuration is many as Granted publication number to be disclosed lifting table structure in the Chinese utility model patent of CN201647922U, comprise scissors fork elevating mechanism and be installed in to cut to pitch and rise the erecting stage at valency mechanism top, scissors fork elevating mechanism is controlled by lifting controller, scissors fork elevating mechanism generally is made up of a plurality of scissors fork elevatings unit, each lifting unit is formed by a pair of yoke of cutting hinged in the center, adjacent scissors fork elevating unit is arranged up and down, the upper end of cutting yoke in the following scissors fork elevating unit in the adjacent scissors fork elevating unit is corresponding hinged with the lower end of cutting yoke in the last scissors fork elevating unit, and scissors fork elevating mechanism is hoisted by the lift drive mechanism driving or descends.
But, present scissor-type lifting platform does not have special-purpose height to show and restraint device, range estimation and the experiences of operating personal of relying on are carried out descending operation more, the too high accident that causes lifting table to be tumbled of lifting table lifting altitude often appears, the great potential safety hazard of bringing for the safe in operation of lifting table.
The utility model content
The purpose of this utility model provides a kind of scissor-type lifting platform height detecting device, judges the technical matters of the adjustable height of lifting table with the experience that solves many dependence operating personals in the prior art; Simultaneously, the utility model also provides a kind of scissor-type lifting platform of using above-mentioned height detecting device.
For achieving the above object, scissor-type lifting platform provided by the utility model with the technical scheme of height detecting device is: the scissor-type lifting platform height detecting device, comprise for being installed in two one of them of cutting yoke that distribute along the vertical direction and be hinged and cut absolute type encoder on the yoke, corresponding being equipped with for driving the fork that described power input shaft rotates on the power input shaft of absolute type encoder, height detecting device also comprises for being installed in described two another ones of cutting yoke cuts cooperating with fork support roof pressure on the yoke, and at fork bearing of trend and the mobile back-up block that cooperates of fork guiding, absolute type encoder has for the signal output part that is electrically connected with the lifting controller of lifting table and/or is electrically connected with the indicating device that is used for demonstration lifting table height.
Have the chute that extends along the fork bearing of trend on the described fork, described back-up block moves with chute and cooperates, and chute inside has the cell wall that cooperates with described back-up block roof pressure that extends along the chute bearing of trend.
Described chute is the groove that connects fork at the depth direction of chute.
The technical scheme of scissor-type lifting platform provided by the utility model is: scissor-type lifting platform, comprise scissors fork elevating mechanism and the load carrying platform that is arranged in scissors fork elevating mechanism top, scissors fork elevating mechanism comprise distribute along the vertical direction and be hinged two cut yoke, scissors fork elevating mechanism controls lifting by lifting controller, on the described scissor-type lifting platform height detecting device is installed, height detecting device comprises that being installed in described two cuts in the yoke one of them and cut absolute type encoder on the yoke, corresponding being equipped with for driving the fork that described power input shaft rotates on the power input shaft of absolute type encoder, height detecting device comprises that also being installed in described two another ones of cutting in the yoke cuts cooperating with fork support roof pressure on the yoke, and at fork bearing of trend and the mobile back-up block that cooperates of fork guiding, absolute type encoder has the signal output part that is electrically connected and/or is electrically connected with the indicating device that is used for demonstration lifting table height with described lifting controller.
Have the chute that extends along the fork bearing of trend on the described fork, described back-up block moves with chute and cooperates, and chute inside has the cell wall that cooperates with described back-up block roof pressure that extends along the chute bearing of trend.
Described chute is the groove that connects fork at the depth direction of chute.
Usefulness of the present utility model is: when scissor-type lifting platform provided by the utility model is used with height detecting device, absolute type encoder is installed in two one of them of cutting in the yoke of arranging along the vertical direction to be cut on the yoke, simultaneously, back-up block is installed in another to be cut on the yoke, making fork and back-up block support roof pressure simultaneously cooperates, and fork is cooperating along fork bearing of trend guiding is mobile with back-up block, under the gravity effect, fork is pressed on the back-up block, like this when the scissors fork elevating mechanism of scissor-type lifting platform hoists, the distance of cutting between the yoke at above-below direction of cutting yoke and being installed with back-up block that absolute type encoder is installed becomes big, distance between absolute type encoder and the back-up block is same to become big, the power input shaft that fork will drive absolute type encoder rotates, at this moment, the absolute type encoder output pulse signal is to indicating device, indicating device will calculate the actual height of detected lifting table according to the impulse singla of input, at this moment, operating personal can be controlled lifting table according to the shown actual height of indicating device, or the signal output part of absolute type encoder is electrically connected with the lifting controller of lifting table, absolute type encoder is exported to lifting controller with impulse singla, when looking into preset height, lifting controller output signal control lifting table stops to rise to avoid taking place overthrow accident.Height detecting device provided by the utility model relies on fork and absolute type encoder to detect two change in location of cutting yoke, and then can obtain the actual height of lifting table, can avoid operating personal to rely on operating experience to judge the mode of the height of lifting table, prevent the accident that occurs tumbling because of the lifting table excessive height, improve the safety of lifting table.
On the scissor-type lifting platform provided by the utility model height detecting device is installed, this height detecting device relies on fork and absolute type encoder to detect two change in location of cutting yoke, obtain the actual height of lifting table, can avoid operating personal to rely on operating experience to judge the mode of the height of lifting table, improve the safety of lifting table.
Description of drawings
Fig. 1 is scissor-type lifting platform provided by the utility model with the structural representation (dotted line is depicted as scissor-type lifting platform among the figure) of a kind of embodiment of height detecting device;
Fig. 2 is the use provided by the utility model structural representation of the scissor-type lifting platform of height detecting device as shown in Figure 1.
The specific embodiment
As shown in Figure 1, a kind of scissor-type lifting platform embodiment of height detecting device, height detecting device among this embodiment comprises for being installed in along the vertical direction two one of them of cutting yoke that distribute cuts absolute type encoder 3 on the yoke, corresponding being equipped with for driving the fork 5 that described power input shaft rotates on the power input shaft of absolute type encoder 3, height detecting device also comprises for being installed in described two another ones of cutting yoke cuts cooperating with fork support roof pressure on the yoke, and the back-up block 7 that on the fork bearing of trend, cooperates with the fork mobile guide.Have the chute 8 that extends along the fork bearing of trend on the described fork 5, chute 8 is the groove that connects fork at the depth direction of chute, and back-up block 7 moves assembling with chute 8, has the cell wall that cooperates for the back-up block roof pressure in chute 8 inside.Absolute type encoder 3 has the signal output part that is electrically connected with the indicating device 1 that is used for demonstration lifting table height.
During concrete enforcement, indicating device 1 can be installed on the load carrying platform 2 of scissor-type lifting platform, so that the operator uses.
In the present embodiment, the signal output part of absolute type encoder is electrically connected with indicating device, and in other embodiments, the signal output part of absolute type encoder also can be used for being electrically connected with the lifting controller of lifting table.Also or the signal output part of absolute type encoder is electrically connected with indicating device and lifting controller simultaneously.
In the present embodiment, be provided with chute 8 at fork 5, back-up block 7 moves with chute 8 and cooperates, and at this moment, back-up block not only can support fork, and simultaneously, back-up block can also be swung downwards to promote fork by the roof pressure fork, improves the sensitivity of height detecting device.
In the present embodiment, fork is provided with chute, in other embodiments, also chute can be set on the fork, but direct support of fork is placed on the back-up block, under the gravity effect, fork with roof pressure on back-up block, when changing appearred in the position of cutting yoke, changing appearred in the position of back-up block and absolute type encoder, and the power input shaft that fork can drive absolute type encoder equally rotates.Also or at fork install weight additional, fork is pressed on the back-up block.
In the present embodiment, chute is groove, like this back-up block can be installed conveniently.
As shown in Figure 2, a kind of embodiment of scissor-type lifting platform, lifting table among this embodiment comprises scissors fork elevating mechanism and is arranged in the load carrying platform 1 at scissors fork elevating mechanism top, scissors fork elevating mechanism comprise distribute along the vertical direction and be hinged two cut yoke, two cut yoke be respectively cut yoke 4 and under cut yoke 6, unlike the prior art be: the height detecting device for detection of the lifting table height is installed on the lifting table herein, the structure of height detecting device as shown in Figure 1, do not repeat them here, during the setting height(from bottom) detecting device, absolute type encoder 3 is installed in cuts on the yoke 4, cut on the yoke 6 and back-up block 7 is installed in down, indicating device 1 is installed on the described load carrying platform 2.
When scissor-type lifting platform hoists, on cut yoke 4 and the position of cutting between the yoke 6 down changes, distance between absolute type encoder 3 and the back-up block 7 is same to become big, the power input shaft that fork 5 will drive absolute type encoder 3 rotates, at this moment, absolute type encoder 3 output pulse signals are to indicating device 1, and indicating device 1 will calculate the actual height of detected lifting table according to the impulse singla of input.
In the present embodiment, the signal output part of absolute type encoder is electrically connected with indicating device, and in other embodiments, the signal output part of absolute type encoder also can be used for being electrically connected with the lifting controller of lifting table.Also or the signal output part of absolute type encoder is electrically connected with indicating device and lifting controller simultaneously.
Height detecting device in the lifting table that present embodiment provides can detect the height of lifting table; like this; when concrete the use; can when surpassing the lifting table limiting altitude, make scissors fork elevating mechanism stop to rise, thereby reach the danger that detects the lifting table circuit and protect lifting table to tumble.
Claims (6)
1. scissor-type lifting platform height detecting device, it is characterized in that: comprise for being installed in two one of them of cutting yoke that distribute along the vertical direction and be hinged and cut absolute type encoder on the yoke, corresponding being equipped with for driving the fork that described power input shaft rotates on the power input shaft of absolute type encoder, height detecting device also comprises for being installed in described two another ones of cutting yoke cuts cooperating with fork support roof pressure on the yoke, and at fork bearing of trend and the mobile back-up block that cooperates of fork guiding, absolute type encoder has for the signal output part that is electrically connected with the lifting controller of lifting table and/or is electrically connected with the indicating device that is used for demonstration lifting table height.
2. scissor-type lifting platform height detecting device according to claim 1, it is characterized in that: have the chute that extends along the fork bearing of trend on the described fork, described back-up block moves with chute and cooperates, and chute inside has the cell wall that cooperates with described back-up block roof pressure that extends along the chute bearing of trend.
3. scissor-type lifting platform height detecting device according to claim 1 and 2 is characterized in that: described chute is for connecting the groove of fork at the depth direction of chute.
4. scissor-type lifting platform, comprise scissors fork elevating mechanism and the load carrying platform that is arranged in scissors fork elevating mechanism top, scissors fork elevating mechanism comprise distribute along the vertical direction and be hinged two cut yoke, scissors fork elevating mechanism controls lifting by lifting controller, it is characterized in that: on the described scissor-type lifting platform height detecting device is installed, height detecting device comprises that being installed in described two cuts in the yoke one of them and cut absolute type encoder on the yoke, corresponding being equipped with for driving the fork that described power input shaft rotates on the power input shaft of absolute type encoder, height detecting device comprises that also being installed in described two another ones of cutting in the yoke cuts cooperating with fork support roof pressure on the yoke, and at fork bearing of trend and the mobile back-up block that cooperates of fork guiding, absolute type encoder has the signal output part that is electrically connected and/or is electrically connected with the indicating device that is used for demonstration lifting table height with described lifting controller.
5. scissor-type lifting platform according to claim 4, it is characterized in that: have the chute that extends along the fork bearing of trend on the described fork, described back-up block moves with chute and cooperates, and chute inside has the cell wall that cooperates with described back-up block roof pressure that extends along the chute bearing of trend.
6. according to claim 4 or 5 described scissor-type lifting platform, it is characterized in that: described chute is for connecting the groove of fork at the depth direction of chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176795 CN203144040U (en) | 2013-04-10 | 2013-04-10 | Scissor-type lifting platform and height detector thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176795 CN203144040U (en) | 2013-04-10 | 2013-04-10 | Scissor-type lifting platform and height detector thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203144040U true CN203144040U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320176795 Expired - Fee Related CN203144040U (en) | 2013-04-10 | 2013-04-10 | Scissor-type lifting platform and height detector thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203144040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894080A (en) * | 2022-04-25 | 2022-08-12 | 宣城市三番科技有限公司 | Method for measuring height of scissor fork |
| US20230013418A1 (en) * | 2019-12-18 | 2023-01-19 | Jingdong Technology Information Technology Co., Ltd. | Control device of lifting platform for detection device and detection device |
-
2013
- 2013-04-10 CN CN 201320176795 patent/CN203144040U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230013418A1 (en) * | 2019-12-18 | 2023-01-19 | Jingdong Technology Information Technology Co., Ltd. | Control device of lifting platform for detection device and detection device |
| US11933452B2 (en) * | 2019-12-18 | 2024-03-19 | Jingdong Technology Information Technology Co., Ltd. | Control device of lifting platform for detection device and detection device |
| CN114894080A (en) * | 2022-04-25 | 2022-08-12 | 宣城市三番科技有限公司 | Method for measuring height of scissor fork |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150410 |
|
| EXPY | Termination of patent right or utility model |