CN205445445U - Vice folding ladder of screw -nut - Google Patents
Vice folding ladder of screw -nut Download PDFInfo
- Publication number
- CN205445445U CN205445445U CN201620266422.8U CN201620266422U CN205445445U CN 205445445 U CN205445445 U CN 205445445U CN 201620266422 U CN201620266422 U CN 201620266422U CN 205445445 U CN205445445 U CN 205445445U
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- CN
- China
- Prior art keywords
- support stand
- folding ladder
- compression spring
- jointed shaft
- rear support
- 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 vice folding ladder of screw -nut belongs to the folding ladder among the civil engineering technical field, and its aim at provides a vice folding ladder of screw -nut. Its technical scheme does: including preceding support frame and back support frame, preceding support frame and back all are equipped with the horizontal pole on the support frame, are equipped with the roof between the top of preceding support frame and the top of back support frame, and the both ends fixedly connected with articulated shaft of roof, preceding support frame and back support frame pass through the articulated shaft and hinge and connect on the roof, prevent that the favourable turn constructs in the preceding support frame before being provided with, be provided with the rear defence favourable turn in the back support frame and construct, still include vice adjustment mechanism of screw -nut, the utility model is suitable for a folding ladder among the civil engineering technical field.
Description
Technical field
This utility model belongs to technical field of civil engineering, relates to a kind of folding ladder.
Background technology
Folding ladder, is civil engineering articles for use, assist staff the highest fall low, just like folding stair.The folding step used time opens, and is finished and converts into, convenient transfer.Folded ladder require to do manual work must solid firmly folded ladder is widely used in various civil engineering, fitting-out work, the compatibility that facilitates of folded ladder is liked by increasing people.
Folding ladder, as a kind of common equipment in a kind of field of civil engineering, can assist staff's operation on-site to certain altitude.Folding ladder launches when in use, and folding ladder can convert into after a procedure, convenient transport.Existing folding ladder both sides are also not provided with limiting fixing mechanism, folding ladder is caused in use to be difficult to be adjusted the most exactly fixing, and existing folding ladder lower end is also not provided with anti-slipping mechanism, make folding ladder when the environmental work that some ground are relatively smooth, easily produce slip between folding ladder lower end and ground, cause folding ladder to be difficult to firmly and smoothly fix on the ground.
For this, the utility model patent of Application No. 201520462543.5 discloses a kind of mobile folding ladder, it includes connecting plate, folding ladder and limiting fixing mechanism, limiting fixing mechanism is arranged between connecting plate and folding ladder, two folding ladders tilt to be symmetricly set on the both sides below connecting plate, folding ladder upper end is hinged with connecting plate, both sides, folding ladder lower end are respectively arranged with anti-skidding hold-down support, limiting fixing mechanism includes fixing sleeve, regulation screw mandrel, adjustable plate and regulation sleeve, on the folding ladder that two pieces of adjustable plates are respectively provided at both sides, fixing sleeve is vertically arranged in connecting plate side, regulation sleeve is hinged and is connected to adjustable plate one end, regulation screw mandrel is threadeded through fixing sleeve with regulation sleeve straight down.This moves folding ladder according to using and needing of transporting regulates this and move folding ladder, and can ensure that this moves folding ladder in use the most steadily, meets the needs of building house ornamentation.
Additionally, Application No. 201520310342.3 utility model patent also discloses that the folding ladder of a kind of high stability, it includes two groups of foot of ladders, it is provided with main support rod between described two groups of foot of ladders, the top top board with bolts of described two groups of foot of ladders, being welded with stop collar on described top board, inside described foot of ladder, auxiliary with bolts supports, and described auxiliary supports and is flexibly connected secondary support bar with between foot of ladder by bolt.The folding ladder of this high stability when in use, improves the stability of folding ladder, it is to avoid the generation of situation toppled over by ladder when in use, improves end face platform area at ladder top top board simultaneously, meets Production requirement, and using effect is good.
But, all there is the safety issue of an i.e. folding ladder of common problem in above-mentioned folding ladder and existing folding ladder, it is all to be formed by front support stand and rear support stand are hinged due to folding ladder, after folding ladder is positioned on ground, when staff stands on folding ladder, two bracing frames of folding ladder are by stress, but make folding ladder be difficult to collapse under the effect of the frictional force bottom bracing frame and between ground.The simple rotation safety with the staff on guarantee folding ladder preventing bracing frame by the frictional force between bottom bracing frame and ground, the safety of this folding ladder is relatively low, easily make the staff on folding ladder get off from folding ladder fading rise, cause the personal injury of staff.The anti-slipping mechanism that above-mentioned two documents pass sequentially through anti-slipping mechanism that " regulation screw mandrel adjustable plate regulation sleeve " between two groups of foot of ladders form, " main support rod pair support bar auxiliary supports non-slipping block " forms realizes anti-skidding.But, realize anti-skidding by arranging anti-slipping mechanism between two groups of foot of ladders, and during the use of folding ladder, staff need to shuttle between folding ladder, thus staff easily is shuttled to cause and obstructs by the anti-slipping mechanism between foot of ladder, affect the efficiency of construction of staff；And owing to staff will often shuttle back and forth between two foot of ladders of folding ladder during operation, thus staff easily collides on the anti-slipping mechanism between foot of ladder, causes the personal injury of staff.
Summary of the invention
The purpose of this utility model is to provide a kind of feed screw nut pair folding ladder, this folding ladder does not arranges anti-slipping mechanism between foot of ladder, staff can free shuttling between two foot of ladders, improve the work efficiency of staff, and the security performance of this folding ladder, the personal injury that when preventing staff from shuttling back and forth between foot of ladder, staff is caused by some parts of folding ladder can be effectively improved.
For achieving the above object, the technical solution of the utility model is:
A kind of feed screw nut pair folding ladder, including front support stand and rear support stand, it is equipped with cross bar on described front support stand and rear support stand, it is provided with top board between top and the top of rear support stand of described front support stand, the two ends of described top board are fixedly connected with jointed shaft, and described front support stand and rear support stand are articulated and connected on top board by jointed shaft；It is provided with front rotation-preventing mechanism in described front support stand, in described rear support stand, is provided with rear rotation-preventing mechanism；Also include feed screw nut pair governor motion, described feed screw nut pair governor motion includes the first connecting rod being articulated with on first body of rod of front support stand, the second connecting rod being articulated with on second body of rod of rear support stand and passes the screw mandrel of top board straight down, the described first connecting rod other end is articulated and connected with the second connecting rod other end, regulation set it is hinged with on described first connecting rod or second connecting rod, being connected in described screw rod bushing is located at regulation set and with regulation external threading, described screw mandrel head end connects rotating disk.
As preferably, offering the first receiving chamber inside first body of rod of described front support stand, described first accommodates intracavity is divided into the first axle receiving chamber and the first spring receiving chamber by the first dividing plate, and part jointed shaft is positioned at the first axle and accommodates intracavity；Described first spring accommodates intracavity and is provided with the first compression spring, described compression spring one end and baffle contacts, the described first compression spring other end is provided with the first fag end seat, and on described first fag end seat, connection has the first anti-rotation rope, the described first anti-rotation rope other end to be fixedly connected on jointed shaft.
As preferably, offering the second receiving chamber inside second body of rod of described rear support stand, described second accommodates intracavity is divided into the second axle receiving chamber and the second spring receiving chamber by second partition, and part jointed shaft is positioned at the second axle and accommodates intracavity；Described second spring accommodates intracavity and is provided with the second compression spring, described second compression spring one end contacts with second partition, the described second compression spring other end is provided with the second fag end seat, on described second fag end seat, connection has the second anti-rotation rope, the described second anti-rotation rope other end to be fixedly connected on jointed shaft.
As preferably, the upper surface of described cross bar is provided with the anti-skidding tongue and groove of W type, thickness is cross bar thickness the 1/15 to 1/10 of the described anti-skidding tongue and groove of W type.
Compared with prior art, the beneficial effects of the utility model are:
In this utility model, arranging top board between front support stand and rear support stand, during use, staff can be seated on this top board, facilitates staff to carry out construction processing；Front support stand and rear support stand are all hingedly connected on top board, the both sides of jointed shaft front end are fixing with front support stand to be connected, the both sides of jointed shaft rear end are fixing with rear support stand to be connected, front support stand, rear support stand all can rotate around jointed shaft, and by rotating front support stand, rear support stand realizes strutting or packing up of folding ladder；The feed screw nut pair governor motion being made up of first connecting rod, second connecting rod, screw mandrel, regulation set and rotating disk is set between first body of rod and second body of rod, screw mandrel is driven to rotate by rotating rotating disk, make regulation be enclosed within screw mandrel to slide up and down, thus drive front support stand, rear support stand to rotate by first connecting rod, second connecting rod, thus adjust strutting or packing up angle of folding ladder, staff stands in and can realize regulation on folding ladder, adjusts convenient, quick.Front support stand, rear support stand the body of rod in all offer receiving chamber, accommodate intracavity and the anti-rotation stabilizing mechanism that is made up of compression spring, fag end seat and anti-rotation rope be set；When folding ladder struts, the length that anti-rotation rope is wound on jointed shaft increases, the i.e. length of the anti-rotation rope between dividing plate and fag end seat reduces, compression spring is compressed, even if people stands on folding ladder, the action of gravity of people also is difficult to recompress this compression spring on rear support stand, more anti-rotation rope is made to be wrapped on jointed shaft, thus can effectively prevent from people from standing on folding ladder making folding ladder to produce and rotate, collapse and staff's personal injury of causing, improve the security performance of this bench type transformator special-purpose ladder.Owing to arranging the anti-skidding tongue and groove of W type on cross bar, thickness is cross bar thickness the 1/15 to 1/10 of the anti-skidding tongue and groove of W type, thus the bearing capacity of cross bar can be effectively improved, enhance the frictional force between sole and cross bar, be prevented effectively from staff underfooting and skid the personal injury causing landing and staff is caused.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of feed screw nut pair governor motion in this utility model；
Fig. 3 is the structural representation of front support stand, rear support stand in this utility model；
Fig. 4 is partial sectional view of the present utility model；
Fig. 5 is the schematic diagram after front support stand, rear support stand turn an angle in Fig. 4；
Fig. 6 is the structural representation of the anti-skidding tongue and groove of W type in this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described further:
A kind of feed screw nut pair folding ladder, this folding ladder includes front support stand 1 and rear support stand 2.Front support stand 1 is made up of two front bodies of rod 11 and the cross bar 4 being connected between the front body of rod 11, and the cross bar 4 on front support stand 1 includes many groups, and many group cross bars 4 are arranged along the length direction of front support stand 1, and staff can climb up front support stand 1 by cross bar 4.Rear support stand 2 is made up of the body of rod 21 after two and the cross bar 4 being connected between the rear body of rod 21, and the cross bar 4 on rear support stand 2 includes many groups, and many group cross bars 4 are arranged along the length direction of rear support stand 2, and staff can climb up rear support stand 2 by cross bar 4.Being provided with top board 8 between the top of the top of front support stand 1 and rear support stand 2, before and after the two sides of top board 8, position has been fixedly connected with on jointed shaft 3, i.e. top board 8 and has been provided with four jointed shafts 3 altogether.Wherein, the front body of rod 11 at front support stand 1 two ends is articulated and connected on top board 8 by the jointed shaft 3 of both sides, top board 8 front end, the rear body of rod 21 at rear support stand 2 two ends is articulated and connected on top board 8 by the jointed shaft 3 of both sides, top board 8 rear end, and front support stand 1, rear support stand 2 all can rotate around respective jointed shaft 3 on top board 8.Being provided with front rotation-preventing mechanism in front support stand 1, when operator station stands on folding ladder, this front rotation-preventing mechanism can prevent the rotation of front support stand 1.Being provided with rear rotation-preventing mechanism in rear support stand 2, when operator station stands on folding ladder, this rear rotation-preventing mechanism can prevent the rotation of rear support stand 12.
In addition, it is additionally provided with feed screw nut pair governor motion, this feed screw nut pair governor motion includes first connecting rod 91, second connecting rod 92, screw mandrel 93, regulation set 94 and rotating disk 95, wherein one end of first connecting rod 91 is articulated and connected on first body of rod 11 of front support stand 1, and the other end of first connecting rod 91 is free end；One end of second connecting rod 92 is articulated and connected on second body of rod 21 of rear support stand 2, and the other end of second body of rod 92 is free end；And the free end of the free end of first connecting rod 91 and second connecting rod 92 is articulated and connected.Offering upright opening on top board 8, screw mandrel 94 is set in this upright opening；And the head end of this screw mandrel 94 is connected with rotating disk 95, the other end of screw mandrel 94 is connected with regulation set 93, and regulation set 93 is set on screw mandrel 94 and threadeds with screw mandrel 94.It is of course also possible to use screw mandrel 94 to threaded with top board 8, and screw mandrel is fixed with regulation set 93 and is connected.Finally, this regulation set 93 is directly articulated and connected on first connecting rod 91 or second connecting rod 92.
Arranging top board 8 between front support stand 1 and rear support stand 2, during use, staff can be seated on this top board 8, facilitates staff to carry out construction processing；Front support stand 1 and rear support stand 2 are all hingedly connected on top board 8, the both sides of jointed shaft 3 front end are fixing with front support stand 1 to be connected, the both sides of jointed shaft 3 rear end are fixing with rear support stand 2 to be connected, front support stand 1, rear support stand 2 all can rotate around jointed shaft 3, and by rotating front support stand 1, rear support stand 2 realizes strutting or packing up of folding ladder.The feed screw nut pair governor motion being made up of first connecting rod 91, second connecting rod 92, screw mandrel 93, regulation set 94 and rotating disk 95 is set between first body of rod 11 and second body of rod 21, screw mandrel 94 is driven to rotate by rotating rotating disk 95, regulation set 93 is made to slide up and down on screw mandrel 94, thus drive front support stand 1, rear support stand 2 to rotate by first connecting rod 91, second connecting rod 92, thus adjust strutting or packing up angle of folding ladder, staff stands in and can realize regulation on folding ladder, adjusts convenient, quick.
As preferably, on the basis of above-described embodiment, the front body of rod 11 of this front support stand 1 is internal offers the first receiving by force, and this first receiving intracavity is provided with dividing plate 15, and the first receiving chamber is divided into this first dividing plate 15 first axle receiving chamber 16 and the first spring accommodates chamber 13.When being articulated and connected, jointed shaft 3 one end of both sides, top board 8 front end accommodates chamber 16 through this first axle and passes the front body of rod 11, makes the jointed shaft 3 of part be positioned at this first axle and accommodates chamber 16.This first spring is provided with the first compression spring 14 in accommodating chamber 13, this the first compression spring 14 one end contacts with the first dividing plate 15, wherein this first compression spring 14 can directly be fixedly connected on the first dividing plate 15, and this first compression spring 14 also can be pressed on the first dividing plate 15 tightly.This first compression spring 14 other end is provided with the first fag end seat 12, and when the first compression spring 14 is compressed, the first fag end seat 12 also will move with.Connecting on first fag end seat 12 and have the first anti-rotation rope 18, the other end of this first anti-rotation rope 18 is intertwined and connected on jointed shaft 3 after sequentially passing through the centre bore of the center of the first compression spring 14, the first dividing plate 15.
As preferably, on the basis of above-described embodiment, the rear body of rod 21 inside changing rear support stand 2 offers the second receiving by force, and this second receiving intracavity is provided with second partition 25, and the second receiving chamber is divided into the second axle and accommodates chamber 26 and the second spring receiving chamber 23 by this second partition 25.When being articulated and connected, jointed shaft 3 one end of both sides, top board 8 rear end accommodates chamber 26 through this second axle and passes the rear body of rod 21 of rear support stand 2, makes the jointed shaft 3 of part be positioned at this second axle and accommodates chamber 26.This second spring is provided with the second compression spring 24 in accommodating chamber 23, this the second compression spring 24 one end contacts with second partition 25, wherein this second compression spring 24 can directly be fixedly connected on second partition 25, and this second compression spring 24 also can be pressed on second partition 25 tightly.This second compression spring 24 other end is provided with the second fag end seat 22, and when the second compression spring 24 is compressed, the second fag end seat 22 also will move with.Connecting on second fag end seat 22 and have the second anti-rotation rope 28, the other end of this second anti-rotation rope 28 is intertwined and connected on jointed shaft 3 after sequentially passing through the centre bore of the center of the second compression spring 24, second partition 25.
When needs strut this folding ladder, pull front supporting member 1, rear support stand 2, make front supporting member 1, rear support stand 2 axis around respective jointed shaft 3 on top board 8 rotate, thus increase the angle between front support stand 1 and top board 8, rear support stand 2 and top board 8；When increasing angle between the two, more anti-rotation rope will be wrapped on jointed shaft 3, and fag end seat is compressed to a side shifting of jointed shaft 3, compression spring；When folding ladder struts, the length that anti-rotation rope is wound on jointed shaft 3 increases, the i.e. length of the anti-rotation rope between dividing plate and fag end seat reduces, compression spring is compressed, even if people stands on folding ladder, the action of gravity of people also is difficult to recompress this compression spring on rear support stand 2, more anti-rotation rope is made to be wrapped on jointed shaft 3, thus can effectively prevent from people from standing on folding ladder making folding ladder to produce and rotate, collapse and staff's personal injury of causing, improve the security performance of this bench type transformator special-purpose ladder.
As preferably, on the basis of above-described embodiment, the upper surface of cross bar 4 is provided with the anti-skidding tongue and groove of W type 41, changes thickness is cross bar 4 thickness the 1/15 to 1/10 of the anti-skidding tongue and groove of W type 41；The bearing capacity of cross bar can be effectively improved by arranging the anti-skidding tongue and groove of W type 41, enhance the frictional force between sole and cross bar, be prevented effectively from staff underfooting and skid the personal injury causing landing and staff is caused.
Claims (5)
1. a feed screw nut pair folding ladder, including front support stand (1) and rear support stand (2), it is equipped with cross bar (4) on described front support stand (1) and rear support stand (2), it is characterized in that: between top and the top of rear support stand (2) of described front support stand (1), be provided with top board (8), the two ends of described top board (8) are fixedly connected with jointed shaft (3), described front support stand (1) and rear support stand (2) and are articulated and connected on top board (8) by jointed shaft (3)；Being provided with front rotation-preventing mechanism in described front support stand (1), described rear support stand is provided with rear rotation-preventing mechanism in (2)；Also include feed screw nut pair governor motion, described feed screw nut pair governor motion includes the first connecting rod (91) being articulated with on first body of rod (11) of front support stand (1), the second connecting rod (92) being articulated with on second body of rod (21) of rear support stand (2) and the screw mandrel (94) passing top board (8) straight down, described first connecting rod (91) other end is articulated and connected with second connecting rod (92) other end, regulation set (93) it is hinged with on described first connecting rod (91) or second connecting rod (92), threaded in described screw mandrel (94) is set in regulation set (93) and with regulation set (93), described screw mandrel (94) head end connects rotating disk (95).
2. a kind of feed screw nut pair folding ladder as claimed in claim 1, it is characterized in that: first body of rod (11) of described front support stand (1) is internal offers the first receiving chamber, described first accommodates intracavity is divided into the first axle receiving chamber (16) and the first spring receiving chamber (13) by the first dividing plate (15), and part jointed shaft (3) is positioned at the first axle and accommodates chamber (16)；Described first spring is provided with the first compression spring (14) in accommodating chamber (13), described compression spring (14) one end contacts with dividing plate (15), described first compression spring (14) other end is provided with the first fag end seat (12), the upper connection of described first fag end seat (12) has the first anti-rotation rope (18), described first anti-rotation rope (18) other end to be fixedly connected on jointed shaft (3).
3. a kind of feed screw nut pair folding ladder as claimed in claim 2, it is characterized in that: second body of rod (21) of described rear support stand (2) is internal offers the second receiving chamber, described second accommodates intracavity is divided into the second axle receiving chamber (26) and the second spring receiving chamber (23) by second partition (25), and part jointed shaft (3) is positioned at the second axle and accommodates chamber (26)；Described second spring is provided with the second compression spring (24) in accommodating chamber (23), described second compression spring (24) one end contacts with second partition (25), described second compression spring (24) other end is provided with the second fag end seat (22), the upper connection of described second fag end seat (22) has the second anti-rotation rope (28), described second anti-rotation rope (28) other end to be fixedly connected on jointed shaft (3).
4. a kind of feed screw nut pair folding ladder as claimed in claim 1, it is characterized in that: second body of rod (21) of described rear support stand (2) is internal offers the second receiving chamber, described second accommodates intracavity is divided into the second axle receiving chamber (26) and the second spring receiving chamber (23) by second partition (25), and part jointed shaft (3) is positioned at the second axle and accommodates chamber (26)；Described second spring is provided with the second compression spring (24) in accommodating chamber (23), described second compression spring (24) one end contacts with second partition (25), described second compression spring (24) other end is provided with the second fag end seat (22), the upper connection of described second fag end seat (22) has the second anti-rotation rope (28), described second anti-rotation rope (28) other end to be fixedly connected on jointed shaft (3).
5. a kind of feed screw nut pair folding ladder as described in arbitrary in claim 1-4, it is characterized in that: be provided with the anti-skidding tongue and groove of W type (41) on the upper surface of described cross bar (4), the thickness of the anti-skidding tongue and groove of described W type (41) is the 1/15 to 1/10 of cross bar (4) thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266422.8U CN205445445U (en) | 2016-04-04 | 2016-04-04 | Vice folding ladder of screw -nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266422.8U CN205445445U (en) | 2016-04-04 | 2016-04-04 | Vice folding ladder of screw -nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205445445U true CN205445445U (en) | 2016-08-10 |
Family
ID=56609045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620266422.8U Expired - Fee Related CN205445445U (en) | 2016-04-04 | 2016-04-04 | Vice folding ladder of screw -nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205445445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831197A (en) * | 2018-06-15 | 2018-11-16 | 吴昊璋 | A kind of convenient board of education of mathematical formulae teaching |
| CN112282231A (en) * | 2020-09-11 | 2021-01-29 | 权太秀 | Auxiliary support stair safety equipment |
-
2016
- 2016-04-04 CN CN201620266422.8U patent/CN205445445U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831197A (en) * | 2018-06-15 | 2018-11-16 | 吴昊璋 | A kind of convenient board of education of mathematical formulae teaching |
| CN108831197B (en) * | 2018-06-15 | 2021-04-06 | 吴昊璋 | Convenient teaching board for mathematical formula teaching |
| CN112282231A (en) * | 2020-09-11 | 2021-01-29 | 权太秀 | Auxiliary support stair safety equipment |
| CN112282231B (en) * | 2020-09-11 | 2022-11-04 | 权太秀 | Auxiliary support stair safety equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170404 |