CN201021754Y - A protection device for lifter - Google Patents
A protection device for lifter Download PDFInfo
- Publication number
- CN201021754Y CN201021754Y CNU2007201235300U CN200720123530U CN201021754Y CN 201021754 Y CN201021754 Y CN 201021754Y CN U2007201235300 U CNU2007201235300 U CN U2007201235300U CN 200720123530 U CN200720123530 U CN 200720123530U CN 201021754 Y CN201021754 Y CN 201021754Y
- Authority
- CN
- China
- Prior art keywords
- shelf
- lifting jack
- lifter
- utility
- trigger
- Prior art date
- 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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Abstract
The utility model discloses a lifter protecting device, which includes a lifter body and a lifter running controller. The utility model is characterized in that a shelf is arranged on the lifter body, a running protecting device is arranged under the shelf, the running protecting device connects with the lifter running controller electrically, and the running protecting device controls the turnoff or the turn-on of the lifter running controller. The lifter protecting device of the utility model can move along with the shelf up and down under the drive force of the lifter, when foreign bodies are involved between the shelf and the faceplate of the furniture cabinet, the protecting device can stop the up-and-down movement immediately to protect the involved foreign bodies. The utility model has strong safety protection capacity, and has excellent protective function in particular for children with weak self protecting ability, can prevent the involved finger from being trapped and hurt; the utility model has simple structure, and is safe and practical.
Description
Technical field
The utility model relates to a kind of appurtenances of lifting jack, especially the protective gear of lifting jack.
Background technique
Lifting jack is a kind of energy device that the device, article etc. of face move up and down that will be placed on it, and as repairing the lifting platform that automobile is used, automobile that just can will be to be repaired raises or reduces the needs when repairing to satisfy.The power plant that lifting jack is commonly used are power units such as cylinder, oil hydraulic cylinder, or parts such as driven by motor screw mandrel, nut produce forward, move backward when rotating.As name be called " portable multi-function lift device ", the patent No. is the Chinese utility model patent file of ZL00223386.X, discloses the lift device that a kind of rotating shaft by motor, screw mandrel, band screw etc. is formed.In the prior art, at field of furniture or other field, adopted lifting jack to move up and down relevant article, as in the hotel, the hotel, places such as meeting room, adopt a kind of TV cabinet that can move up and down, the audio amplifier cabinet, furniture such as Electric Appliance Cabinet, in such furniture, lifting jack is set, shelf is set on lifting jack, and the area of shelf is generally less than the surface area of furniture cabinet panel, also can equate certainly, with TV, electrical equipment such as audio amplifier or other article are placed on the shelf, lifting jack is at motor, screw mandrel, parts such as nut drive down, carry shelf, the article of placing on the shelf move up and down, and make its rising or reduction.
But the furniture of above-mentioned band lifting jack of the prior art is not provided with protective gear usually, has potential safety hazard; Particularly, driving shelf at lifting jack moves up and down in the process, particularly at the surface area of shelf area less than the furniture cabinet panel, in moving up and down in the groove that shelf is offered on the furniture cabinet panel, the easy article that other are little are involved between shelf and the furniture cabinet panel; Easily people's finger etc. is stuck between shelf and the furniture cabinet panel, crushes, damage people's finger, particularly for not having self-protection ability, child that curiosity is strong, the safety protection problem is more outstanding.The corresponding protection device should be set on lifting jack, when having foreign matter to be involved between shelf and the furniture cabinet panel, just can stop immediately moving up and down, motor quits work, protection people's indrawn foreign matters such as finger.
Summary of the invention
The utility model is not provided with Safeguard, has the above-mentioned deficiency of potential safety hazard at prior art, provide a kind of simple in structure, can stop to move up and down protective gear automatically with the lifting jack of protecting indrawn foreign matter.
The technical solution of the utility model: a kind of protective gear of lifting jack, comprise lifting jack body, lifting jack operation controller, it is characterized in that: on described lifting jack body, shelf is set, below shelf, be provided with the running protection device, the running protection device is electrically connected with the lifting jack operation controller, and the running protection device is controlled closing or opening of lifting jack operation controller;
Described running protection device is made up of unsteady rod member, strut and trigger, float rod member through strut be movably connected in shelf below, the outer end shape and size of the rod member that floats match with the outer end shape and size of shelf; The lower end of trigger is arranged on the rod member that floats, and the upper end of trigger does not contact with shelf, and the upper end of trigger is the contact; Trigger is electrically connected with the lifting jack operation controller.
The protective gear of lifting jack of the present utility model has following characteristics:
1, under the drive of lifting jack, protective gear, just can stop to move up and down along with shelf moves up and down when having foreign matter to be involved between shelf and the furniture cabinet panel immediately, effectively protects indrawn foreign matter.
2, safety protection ability is strong, and particularly more weak to self-protection ability child has good protective action, prevents from that its finger from waiting to be involved in and to be crushed, damage.
3, simple in structure, safe and practical.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Accompanying drawing is the utility model structure diagram;
Embodiment
In Fig. 1,1-lifting jack body, 2-lifting jack operation controller, 3-shelf, 4-running protection device, the 5-rod member that floats, 6-strut, 7-trigger, 8-contact, 9-return spring;
The protective gear of lifting jack of the present utility model comprises lifting jack body 1, lifting jack operation controller 2, and shelf 3 is set on lifting jack body 1, and lifting jack body 1 moves up and down under 2 controls of lifting jack operation controller, drives shelf 3 simultaneously and moves up and down; Lifting jack body 1 is rams such as cylinder of the prior art, oil hydraulic cylinder, or power unit such as motor, screw mandrel, nut, and lifting jack operation controller 2 is control switchs of the prior art, can control the operation of lifting jack body 1.The article of lifting are treated in the top placement of shelf 3, as television set, audio amplifier, projector etc., be provided with running protection device 4 below the shelf 3, running protection device 4 is electrically connected with lifting jack operation controller 2, and running protection device 4 also can be controlled closing or opening of lifting jack operation controller 2; When lifting jack body 1 drive shelf 3 moved up and down, if running protection device 4 is triggered, running protection device 4 was just given 2 one electrical signal of lifting jack operation controller, closes lifting jack operation controller 2, makes lifting jack body 1 out of service.
In the specific embodiment structure shown in Figure 1, described running protection device 4 is made up of unsteady rod member 5, strut 6 and trigger 7, float rod member 5 through strut 6 be movably connected in shelf 3 below, the outer end shape and size of unsteady rod member 5 match with the outer end shape and size of shelf 3, and the shelf 3 shown in the figure is quadrilaterals with the shape of unsteady rod member 5; On unsteady rod member 5, be provided with more than one trigger 7, trigger 7 can be selected the prior mechanical trigger for use, and the upper end of trigger 7 is contacts 8; Trigger 7 is between unsteady rod member 5 and strut 6, and the lower end of trigger 7 is arranged on the rod member 5 that floats, and the upper end of trigger 7 does not contact with shelf 3; Trigger 7 is electrically connected with lifting jack operation controller 2, when the contact 8 of trigger 7 upper ends contacted with shelf 3, trigger 7 produced trigger signal, and this trigger signal is transferred to lifting jack operation controller 2, close lifting jack operation controller 2, make lifting jack body 1 out of service.In order to operate steadily, strut 6 is provided with return spring 9, and making floats keeps suitable distance between rod member 5 and the shelf 3.
The working principle of present embodiment is: when lifting jack body 1 drive shelf 3 moves up and down, when especially descending, if there is foreign matter to block the rod member 5 that floats, make the rod member 5 that floats stop to descend, and shelf 3 is still descending, distance between shelf 3 and the unsteady rod member 5 is shortened, when the upper end of trigger 7 contacted with shelf 3, trigger 7 produced trigger signal, and this trigger signal is transferred to lifting jack operation controller 2, close lifting jack operation controller 2, make lifting jack body 1 out of service.
Running protection device 4 its structures of the present utility model can have other multiple structure; as mechanical stroke switch, photoelectric control switch etc.; block when floating rod member 5 as foreign matter; this running protection device 4 produces trigger signal; this trigger signal is transferred to lifting jack operation controller 2; close lifting jack operation controller 2, make lifting jack body 1 out of service.Above-mentioned running protection device 4 other structures all are equivalent structures of the present utility model, all will fall into protection domain of the present utility model.
Claims (3)
1. the protective gear of a lifting jack; comprise lifting jack body (1), lifting jack operation controller (2); it is characterized in that: shelf (3) is set on described lifting jack body (1); below shelf (3), be provided with running protection device (4); running protection device (4) is electrically connected with lifting jack operation controller (2), and running protection device (4) is controlled closing or opening of lifting jack operation controller (2).
2. the protective gear of lifting jack according to claim 1, it is characterized in that: described running protection device (4) is made up of unsteady rod member (5), strut (6) and trigger (7), float rod member (5) through strut (6) be movably connected in shelf (3) below, the outer end shape and size of the rod member (5) that floats match with the outer end shape and size of shelf (3); The lower end of trigger (7) is arranged on the unsteady rod member (5), and the upper end of trigger (7) does not contact with shelf (3), and the upper end of trigger (7) is contact (8); Trigger (7) is electrically connected with lifting jack operation controller (2).
3. the protective gear of lifting jack according to claim 2, it is characterized in that: strut (6) is provided with return spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201235300U CN201021754Y (en) | 2007-02-06 | 2007-02-06 | A protection device for lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201235300U CN201021754Y (en) | 2007-02-06 | 2007-02-06 | A protection device for lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021754Y true CN201021754Y (en) | 2008-02-13 |
Family
ID=39089163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201235300U Expired - Fee Related CN201021754Y (en) | 2007-02-06 | 2007-02-06 | A protection device for lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021754Y (en) |
-
2007
- 2007-02-06 CN CNU2007201235300U patent/CN201021754Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 |