CN2755262Y - Top stairs - Google Patents
Top stairs Download PDFInfo
- Publication number
- CN2755262Y CN2755262Y CN 200420094890 CN200420094890U CN2755262Y CN 2755262 Y CN2755262 Y CN 2755262Y CN 200420094890 CN200420094890 CN 200420094890 CN 200420094890 U CN200420094890 U CN 200420094890U CN 2755262 Y CN2755262 Y CN 2755262Y
- Authority
- CN
- China
- Prior art keywords
- bar
- terraced
- pedal
- descending stair
- hinged
- 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 relates to a building top ladder which has convenient use and little space occupying. The utility model comprises a mounting frame fixed on a building top, two ladder rods and a plurality of pedals. The utility model is characterized in that the upper ends of the ladder rods are hinged and connected with the mounting frame, and deflector rods are fixed on the ladder rods; both ends of an air cylinder filled with compressed air are respectively hinged and connected with the deflector rods and the mounting frame, and both ends of each pedal are respectively connected with the two ladder rods.
Description
Technical field
The utility model relates to a kind of ladder, particularly a kind of Top stairs.
Background technology
What use in the loft of existing family or retail shop is portable ladder or fixed steel concrete ladder, wherein portable ladder is generally wooden ladder or wire ladder, by two parallel columns of placing vertically with somely constitute across the pedal between two columns, during use its upper end leaned against the loft import along pedal upwards walking get final product, its shortcoming is that portable ladder is because removable, caused danger so knock over easily, and use inconvenient, take up room; And the shortcoming of fixed ladder is not removable, and occupation space is bigger, and its use cost is high in this metropolis.
Summary of the invention
The purpose of this utility model is use inconvenience, the big problem that takes up room that exists in the existing ladder in order to solve, and provide a kind of easy to use, little Top stairs takes up room.
Technical scheme:
The purpose of this utility model is achieved in that a kind of Top stairs, comprise the installing rack that is fixed on roof, two terraced bars and some pedals, it is characterized in that described terraced bar upper end is hinged with installing rack, ladder is fixed with driving lever on the bar, in fill compressed-air actuated cylinder two ends and be hinged with driving lever, installing rack respectively; Described each pedal two ends are connected with two terraced bars respectively.When not re-using Top stairs, terraced bar lower end pushed away to the installing rack direction make it upwards to rotate around hinge, after the action direction of cylinder force is upwards crossed the critical line that the pin joint by the pin joint of cylinder and installing rack, terraced bar and installing rack constitutes, cylinder is upwards packed up terraced bar automatically, and whole ladder is retracted on the installing rack that is installed in roof and does not take ground space; During use terraced bar tail end is pulled down (can connect a sagging rope at terraced bar tail end), terraced bar is after the action direction of the hinge bottom and cylinder force is crossed above-mentioned critical line downwards, and cylinder contacts terraced bar only with ground and can use to the bottom to terraced bar tail end; Wherein cylinder is equivalent to a bistable mechanism to the effect of whole device.Certainly, the compressed air in the cylinder also can replace with spring, and this is that those skilled in the art are all attainable on the utility model basis.
Described Top stairs, it is characterized in that described installing rack is provided with the gathering sill of placing tooth bar, the button hole that tooth bar is provided with on ratchet and the installing rack matches, and described cylinder one end also is about to the part of tooth bar as installing rack by being connected with installing rack with the hinged of tooth bar; Be articulated with gear on the described installing rack, this gear and above-mentioned tooth bar are meshing.Wherein being opened in ratchet and the ratchet that the button hole on the installing rack is equivalent in the ratchet mechanism installing rack matches; Top stairs earlier is installed in tooth bar from the hinge of terraced bar and installing rack at a distance when mounted, makes tooth bar to the motion of hinge direction with instrument transmitting gears such as spanners again, in ratchet buckles into the close button hole of hinge, makes cylinder that enough pressure be arranged with compression cylinder.
Described Top stairs is characterized in that described terraced bar tail end is provided with telescopic leg, regulates the extension elongation of telescopic leg between telescopic leg and the terraced bar with screw.Its effect is the total length that can adjust terraced bar as required, with roof or the individual custom to terraced bar gradient that adapts to differing heights.
Described Top stairs is characterized in that described pedal innerly is hinged with terraced bar, outer end and a guide peg be hinged, and this guide peg is provided with bar hole and blocks the pin that is fixed on the terraced bar; Each pedal outer end is articulated on the same connecting rod.When pedal is in user mode, bar hole on the guide peg and pin acting in conjunction make pedal translate into outermost outward, so that the pedal plane is parallel with horizontal plane, being convenient to sole tramples, when packing up terraced bar, with hand pedal is upwards turned over, guide peg middle part makes the pedal plane roughly parallel with terraced bar to the motion of pin direction, so that shared space when saving terraced bar and packing up; And the effect of connecting rod is that each pedal is overturn synchronously, and when promptly stirring wherein a pedal, each pedal overturns simultaneously.
Described Top stairs is characterized in that described terraced bar is divided into terraced bar and descending stair bar, and is inwardly hinged between the upper and lower terraced bar; When opening between the upper and lower terraced bar, have a self-locking mechanism that constitutes by slide block will be between the upper and lower terraced bar locking and make both can not be folding relatively.Must dial earlier the slide block release when packing up ladder.
Described Top stairs is characterized in that described slide block is arranged on terraced bar, and slide block is provided with the back latch hook, and the descending stair bar is provided with and the corresponding back lockhole of described back latch hook; Upward being provided with spring between terraced bar and the slide block makes slide block slide to locking direction, go up terraced bar and be provided with hoodle, slide block is provided with the locating hole that matches with this hoodle, slide block was positioned when slide block slided into described hoodle and falls into locating hole, back latch hook on the slide block separates with the back lockhole of descending stair bar simultaneously, the self-locking mechanism release, the descending stair bar can fold around hinge and last terraced bar, after reopening the descending stair bar, after slide block inwardly being pushed away the locating hole that makes on the slide block and hoodle separating, slide block continues inwardly sliding under the spring force effect, and the back latch hook on slide block falls into again in the back lockhole of descending stair bar and will go up, the descending stair rod lock.
Described Top stairs is characterized in that described slide block is provided with boss, and the descending stair bar is provided with the shifting block corresponding with this boss; The descending stair bar also be provided with slide block after inclined-plane, the latch hook outside or the corresponding pressure head of cambered surface; After slide block is in and is fixed on released state by cylinder lock with balls, when the descending stair bar is upwards translated into certain position, the boss that described shifting block is stirred slide block makes slide block inwardly slip over the position location of described hoodle to the slide block locating hole, slide block resets under described spring force effect, at this moment, the descending stair bar is to the back latch hook place of counter-rotation to its pressure head and slide block, pressure head by the latch hook outside, back with slide block outwards in the unlikely locating hole that falls into slide block of a bit of stroke in top but hoodle, after the descending stair bar smooth opening, slide block can inwardly slide under the spring force effect back latch hook is fallen in the back lockhole of descending stair bar, thereby will descend, the descending stair rod lock.Its benefit is, only needs operation to remove the action of self-locking in the use, and promptly the pull-up slide block makes it outside slip, close when making progress terraced bar at the descending stair bar, the shifting block of descending stair bar resets slide block, and when reopening the descending stair bar, the back latch hook of slide block can fall in the lockhole of back automatically.
Described Top stairs, it is characterized in that described terraced bar is hinged with the pedal the inner that is arranged on terraced bar, each pedal outer end of going up terraced bar articulates with last connecting rod respectively, push rod one end and descending stair bar pivot connect, the other end articulates with the wherein pedal outer end that is hinged on terraced bar, go up the part of terraced bar, the part of descending stair bar, push rod and pedal constitute one or four lever linkage mechanisms makes the descending stair bar make progress terraced bar when closing, push rod upwards turns over by each pedal outer end that last connecting rod will be gone up terraced bar, so that each pedal around with the jointed shaft of last terraced bar turn to the pedal plane roughly with the parallel position of last terraced bar, when the descending stair bar is opened, push rod will be gone up the plane positioning of each pedal on the terraced bar in roughly parallel with horizontal plane position by last connecting rod; Described descending stair bar is hinged with the pedal the inner that is arranged on the descending stair bar, each pedal outer end of descending stair bar articulates with lower link respectively, pull bar one end and last terraced bar pivot connect, the other end articulates with the wherein pedal outer end that is hinged on the descending stair bar, the part of descending stair bar, go up the part of terraced bar, pull bar and pedal constitute one or four lever linkage mechanisms makes the descending stair bar make progress terraced bar when closing, pull bar upwards turns over each pedal outer end of descending stair bar by lower link, so that each pedal turns to roughly parallel with descending stair bar position, pedal plane around the jointed shaft with the descending stair bar, when the descending stair bar is opened, pull bar by lower link with the plane positioning of each pedal on the descending stair bar in roughly parallel position with horizontal plane.When pedal is in user mode, bar hole on the pull bar and pin acting in conjunction make pedal translate into outermost outward, so that the pedal plane is parallel with horizontal plane, being convenient to sole tramples, when packing up terraced bar, with hand pedal is upwards turned over, pull bar middle part makes the pedal plane roughly parallel with terraced bar to the motion of pin direction, so that shared space when saving terraced bar and packing up; And the effect of connecting rod is that each pedal is overturn synchronously, and when promptly stirring wherein a pedal, each pedal overturns simultaneously.
Described Top stairs is characterized in that described descending stair bar outer end is provided with outer terraced bar, and is outwards hinged between outer terraced bar and the descending stair bar.Because between outer terraced bar and the descending stair bar for outwards hinged, so when opening ladder, outer terraced bar is a maximum open position when being opened to the descending stair bar roughly on same straight line, being provided with stopping means between outer terraced bar and the descending stair bar this moment can not turn up outer terraced bar again, so, between outer terraced bar and the descending stair bar self-locking mechanism need not be set.
Beneficial effect:
Owing to adopted technical scheme described in the utility model, Top stairs is not when using, only need terraced bar is upwards pushed away and receipts such as pedal can be hung over roof, do not take floor area, and easy to use, when terraced bar was divided into upper and lower, outer terraced bar, packing up can be folding with it before the terraced bar, make its occupation space littler, and four lever linkage mechanisms of slide block type self-locking mechanism and pedal make it to operate more convenient.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the three-dimensional view of an embodiment of Top stairs described in the utility model.
Fig. 2 is installing rack among Fig. 1 embodiment, the relative movement state diagram of going up parts such as terraced bar and cylinder.
Fig. 3 is that terraced bar outwards climbs over another state diagram after the angle in Fig. 2 state.
Fig. 4 is the state diagram before tooth plate is adjusted in the corresponding stylish installation Top stairs process with Fig. 3 state.
Fig. 5 is the enlarged drawing of A part among Fig. 1 embodiment.
Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 be descending stair bar among Fig. 1 embodiment pedal, pull bar, go up the course of action schematic diagram of the four lever linkage mechanisms that terraced bar, descending stair bar constitute.
Figure 11, Figure 12, Figure 13, Figure 14, Figure 15 are pedal, the push rod of going up terraced bar among Fig. 1 embodiment, the course of action schematic diagram of going up four lever linkage mechanisms of terraced bar, descending stair bar formation.
Figure 16, Figure 17, Figure 18, Figure 19 are the course of action floor map of slide block among Fig. 1 embodiment.
Figure 20, Figure 21, Figure 22 are the course of action schematic perspective views of slide block among Fig. 1 embodiment.
Among the figure 1, installing rack, 11, tooth plate, 12, gear, 13, ratchet, 51, cylinder, 52, driving lever, 10, hinge, 41, upper pendulum bar, 42, draft link, 21, go up terraced bar, 6, go up hinge, 22, the descending stair bar, 230, "down hinge, 23, outer terraced bar, 233, screw, 232, telescopic leg, 33, pedal, 32, pedal, 302, lower link, 301, go up connecting rod, 31, pedal; 111, tooth bar; 101, button hole; 320, guide peg; 61, prop up piece; 62, pull bar; 63, push rod; 71, preceding articulation block, 72, the back articulation block, 73, slide block, 74, spring, 731, preceding latch hook, 732, the back latch hook, 734, locating hole, 711, preceding lockhole, 721, the back lockhole, 710, hoodle; 733, boss, 722, shifting block, 723, pressure head.
The specific embodiment:
Fig. 1 is the three-dimensional view of an embodiment of Top stairs described in the utility model.In conjunction with each accompanying drawing as seen, described Top stairs, comprise square installing rack 1, go up terraced bar 21 by two, two descending stair bars 22 and two two terraced bars that outer terraced bar 23 constitutes, and be installed in two pedals 31 between the terraced bar, 32,33, it is hinged by hinge 10 and installing rack 1 to go up terraced bar 21, go up that to pass through last hinge 6 between terraced bar 21 and the descending stair bar 22 hinged, last hinge 6 is positioned at, the inboard of descending stair bar (arriving Figure 10) referring to Fig. 6, descending stair bar 22 is hinged by "down hinge 230 with outer terraced bar 23, "down hinge 230 is positioned at the outside of descending stair bar and outer terraced bar, as shown in Figure 5, outer terraced bar 23 tail ends are with telescopic leg 232, regulate the extension elongation of telescopic leg 232 between telescopic leg 232 and the outer terraced bar 23 with screw 233.
In from Figure 16 to Figure 22 as seen, and on the fixing preceding articulation block 71 of terraced bar and and the fixing back articulation block 72 of descending stair bar between be provided with slide block 73 and constitute self-locking mechanisms, latch hook 731 and back latch hook 732 before slide block 73 is provided with, preceding articulation block 71 and back articulation block 72 are respectively equipped with preceding lockhole 711 and the back lockhole 721 corresponding with preceding latch hook 731 and back latch hook 732; Be provided with spring 74 between last hinge 6 and the slide block 73, preceding articulation block 71 is provided with hoodle 710, and slide block is provided with the locating hole 734 that matches with hoodle 710; Slide block is provided with boss 733, and back articulation block is provided with the shifting block 722 (see Figure 22) corresponding with boss 733, back articulation block also be provided with slide block after the corresponding pressure head 723 in inclined-plane, latch hook 732 outside.State when Figure 16 and Figure 20 are slide blocks 73 with preceding articulation block and back articulation block locking, from two figure as seen, slide block 73 forward and backward latch hook 731,732 under spring 74 effects falls into respectively in the preceding lockhole 711 of preceding articulation block, back articulation block, the back lockhole 721, at this moment, back articulation block can not rotate counterclockwise around last hinge 6 with respect to preceding articulation block, thereby makes between the upper and lower terraced bar locked and can not fold; If the slide block 73 of state shown in Figure 16 is upwards pushed state shown in Figure 17, then the locating hole in the slide block 734 slides into hoodle 710 places, hoodle 710 parts spring into the state that slide block is in locked by hoodle and can not glides, at this moment, before, back latch hook 731,732 respectively with preceding, back lockhole 711,721 separate, before, after being in released state between the back articulation block, back articulation block can be in Figure 17 state around on hinge 5 rotate counterclockwise, also be that the descending stair bar can upwards be rolled over, when back articulation block 72 turns to state shown in Figure 22, the boss 733 that shifting block 722 is stirred slide block moves down slide block, after locating hole 734 is crossed hoodle 710, slide block 73 under the effect of spring 74, reset downwards (its state is equivalent to slide block at state shown in Figure 16), and when opening the descending stair bar next time, pressure head 723 on the back articulation block upwards pushes up (but its scope can not make the locating hole on the slide block move to the hoodle place) along the inclined-plane, back latch hook 732 outside on the slide block with slide block, up to the back articulation block back lockhole 721 over against the back latch hook 732 after, before, back articulation block is opened fully, slide block under the spring force effect, glide and will before, back articulation block locking, go up between terraced bar and the descending stair bar also locked so that subscriber station on pedal the time on, can not fold between the descending stair bar.Preceding in fact latch hook 731 can be positioned at preceding lockhole 711 in the whole locking or the process of unblanking, also promptly before the long again present embodiment that also do not influence of length of latch hook, that plays locking action is actually back latch hook on the slide block and the back lockhole on the articulation block of back.
Go up terraced bar 21 and be fixed with driving lever 52, in fill compressed-air actuated cylinder 51 cylinder bodies, one end and driving lever 52 is hinged, be hinged with another sliding end of piston tooth plate 11 with band tooth bar 111, tooth plate 11 is placed in the gathering sill of installing rack 1, and the button hole 101 that tooth plate 11 is provided with on ratchet 13 and the installing rack matches; Be articulated with the gear 12 meshing on the installing rack with tooth bar 111.Figure 4 shows that the position of the preceding tooth plate 11 of Top stairs debugging, with spanner transmitting gear 12 tooth plate 11 moved and to regulate the active force of cylinder that state shown in Figure 3 is the good tooth plate position of debugging to terraced bar.
Upward terraced bar 21 is inner hinged with the pedal 31 that is arranged on terraced bar, each pedal 31 outer end and last connecting rod 301 articulate, push rod 63 1 ends are articulated in descending stair bar 22, the other end is articulated in wherein pedal 31 outer ends, see Figure 11, Figure 11 is last, when the descending stair bar is opened, part by last terraced bar 21, the part of descending stair bar 22, the four lever linkage mechanism states that push rod 63 and pedal 31 constitute, after playing slide block 73 releases of self-locking action among above-mentioned Figure 16, descending stair bar 22 retrousse process statuses are seen Figure 12,13,14,15, next plays rotation to other pedal in the drive of last connecting rod 301 among the figure; The effect of push rod 63 by 301 pairs of each pedals 31 of last connecting rod also can replace the effect of guide peg 320 and pin 220 among Fig. 5 among Figure 11.In like manner, shown in Figure 6, part, pull bar 62 and the pedal 32 of the part of descending stair bar 22, last terraced bar 21 also constitute four lever linkage mechanisms, just pull bar 62 is by being articulated in terraced bar indirectly with the pivot joint that is fixed on the piece 61 on the terraced bar 21, each pedal outer end of descending stair bar is articulated in lower link 302, its principle is identical with pedal operating principle on the descending stair bar, its course of action sees that Fig. 6 is to Figure 10, wherein Fig. 6 is the state of upper and lower terraced bar when opening, and Figure 10 is the state of descending stair bar when being folded on the terraced bar fully.
For more firm purpose, every pedal going up on terraced bar and the descending stair bar all is furnished with guide peg shown in Figure 5 320 and pin 220 in the present embodiment.Certainly, push rod in the four lever linkage mechanisms of present embodiment and pull bar can not wanted yet, and realize stirring of pedal with manual mode.
Also be provided with upper pendulum bar 41, draft link 42 in the present embodiment, the open angle of terraced bar is played the qualification effect, wherein upper pendulum bar is articulated in installing rack, draft link is articulated in terraced bar, and upper and lower fork also is articulated.
Figure 1 shows that the user mode figure of Top stairs in the present embodiment, when packing up terraced bar, slide block pull-up with last hinge 6 places, to remove the self-locking mechanism between the upper and lower terraced bar, earlier outer terraced bar 23 is folded to descending stair bar 22 around "down hinge 230 clockwise (outwards), inwardly be folded to terraced bar 21 around last hinge 6 one together with descending stair bar 22 again, then three sections terraced bars are pushed away to overcome the pressure of cylinder 51 to installing rack 1 direction together, after the cylinder action point is crossed critical line (as shown in Figure 2), terraced bar can be packed up by the active force of cylinder.
Claims (9)
1, a kind of Top stairs comprises the installing rack that is fixed on roof, two terraced bars and some pedals, it is characterized in that described terraced bar upper end is hinged with installing rack, is fixed with driving lever on the terraced bar, in fill compressed-air actuated cylinder two ends and be hinged with driving lever, installing rack respectively; Described each pedal two ends are connected with two terraced bars respectively.
2, according to the described Top stairs of claim 1, it is characterized in that described installing rack is provided with the gathering sill of placing tooth bar, the button hole that tooth bar is provided with on ratchet and the installing rack matches, and described cylinder one end is by being connected with installing rack with the hinged of tooth bar; Be articulated with gear on the described installing rack, this gear and above-mentioned tooth bar are meshing.
3, according to the described Top stairs of claim 1, it is characterized in that described terraced bar tail end is provided with telescopic leg, regulate the extension elongation of telescopic leg between telescopic leg and the terraced bar with screw.
4, according to the described Top stairs of claim 1, it is characterized in that described pedal innerly is hinged with terraced bar, outer end and a guide peg be hinged, this guide peg is provided with bar hole and blocks the pin that is fixed on the terraced bar; Each pedal outer end is articulated on the same connecting rod.
5, according to the described Top stairs of claim 1, it is characterized in that described terraced bar is divided into terraced bar and descending stair bar, inwardly hinged between the upper and lower terraced bar; When upper and lower terraced bar is opened, have a self-locking mechanism that constitutes by slide block will be between the upper and lower terraced bar locking and make both can not be folding relatively.
6, according to the described Top stairs of claim 5, it is characterized in that described slide block is arranged on terraced bar, slide block is provided with the back latch hook, and the descending stair bar is provided with and the corresponding back lockhole of described back latch hook; Upward be provided with spring between terraced bar and the slide block and make slide block slide to locking direction, go up terraced bar and be provided with hoodle, slide block is provided with the locating hole that matches with this hoodle.
7, according to the described Top stairs of claim 6, it is characterized in that described slide block is provided with boss, the descending stair bar is provided with the shifting block corresponding with this boss; The descending stair bar also be provided with slide block after inclined-plane, the latch hook outside or the corresponding pressure head of cambered surface.
8, according to the described Top stairs of claim 5, it is characterized in that described terraced bar is hinged with the pedal the inner that is arranged on terraced bar, each pedal outer end of going up terraced bar articulates with last connecting rod respectively, push rod one end and descending stair bar pivot connect, the other end and wherein pedal outer end of being hinged on terraced bar articulate, and go up the part of terraced bar, part, push rod and the pedal of descending stair bar constitutes one or four lever linkage mechanisms; Described descending stair bar is hinged with the pedal the inner that is arranged on the descending stair bar, each pedal outer end of descending stair bar articulates with lower link respectively, pull bar one end and last terraced bar pivot connect, the other end and wherein pedal outer end of being hinged on the descending stair bar articulate, and the part of descending stair bar, part, pull bar and the pedal of going up terraced bar constitute one or four lever linkage mechanisms.
9, according to the described Top stairs of claim 5, it is characterized in that described descending stair bar outer end is provided with outer terraced bar, outwards hinged between outer terraced bar and the descending stair bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420094890 CN2755262Y (en) | 2004-11-09 | 2004-11-09 | Top stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420094890 CN2755262Y (en) | 2004-11-09 | 2004-11-09 | Top stairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755262Y true CN2755262Y (en) | 2006-02-01 |
Family
ID=35928890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420094890 Expired - Fee Related CN2755262Y (en) | 2004-11-09 | 2004-11-09 | Top stairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755262Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350937A (en) * | 2013-07-24 | 2013-10-16 | 巨人通力电梯有限公司 | Automatic crawling ladder device used for coming in/out of elevator pit |
| CN107839615A (en) * | 2017-10-16 | 2018-03-27 | 安卡精密机械（天津）股份有限公司 | A kind of upper frame for automobile |
| CN108609307A (en) * | 2016-12-09 | 2018-10-02 | 扬州中集通华专用车有限公司 | Tank case and its cat ladder |
| CN108609307B (en) * | 2016-12-09 | 2024-05-03 | 扬州中集通华专用车有限公司 | Tank and ladder thereof |
-
2004
- 2004-11-09 CN CN 200420094890 patent/CN2755262Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350937A (en) * | 2013-07-24 | 2013-10-16 | 巨人通力电梯有限公司 | Automatic crawling ladder device used for coming in/out of elevator pit |
| CN103350937B (en) * | 2013-07-24 | 2015-11-11 | 巨人通力电梯有限公司 | A kind of automatic climbing ladder apparatus for passing in and out elevator pit |
| CN108609307A (en) * | 2016-12-09 | 2018-10-02 | 扬州中集通华专用车有限公司 | Tank case and its cat ladder |
| CN108609307B (en) * | 2016-12-09 | 2024-05-03 | 扬州中集通华专用车有限公司 | Tank and ladder thereof |
| CN107839615A (en) * | 2017-10-16 | 2018-03-27 | 安卡精密机械（天津）股份有限公司 | A kind of upper frame for automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |