CN209556906U - A kind of pressing type telescopic ladder - Google Patents
A kind of pressing type telescopic ladder Download PDFInfo
- Publication number
- CN209556906U CN209556906U CN201821882962.4U CN201821882962U CN209556906U CN 209556906 U CN209556906 U CN 209556906U CN 201821882962 U CN201821882962 U CN 201821882962U CN 209556906 U CN209556906 U CN 209556906U
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- China
- Prior art keywords
- hollow stem
- spacer pin
- pipe sleeve
- bar
- pressing
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- 244000273618 Sphenoclea zeylanica Species 0.000 claims abstract description 50
- 125000006850 spacer group Chemical group 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000004308 accommodation Effects 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 210000003813 thumb Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Ladders (AREA)
Abstract
The utility model discloses a kind of pressing type telescopic ladder, including upright bar disposed in parallel, upright bar is made of several hollow stems, the upper and lower side of hollow stem inner wall is respectively equipped with jack and lower jack, each pair of hollow stem top is all connect with a crossbeam, connection structure is equipped between hollow stem and crossbeam, connection structure includes the inserting handle for being fixed in the sleeve on hollow stem top and being plugged in beam-end, control mechanism is equipped in inserting handle, control mechanism includes limit pipe sleeve, it can the flexible spacer pin of relative limit pipe sleeve, the spring being set between limit pipe sleeve and spacer pin and the pressing mechanism for driving spacer pin to shrink to limit pipe sleeve by pressing, pressing type telescopic ladder setting is simple, rapid operation, flexible smoothness, the situation that hand is pinched can effectively be avoided, it is highly-safe.
Description
Technical field
The utility model relates to a kind of extension ladders, more specifically, it relates to a kind of pressing type telescopic ladder.
Background technique
Ladder is ascending tool very common in daily life, traditional ladder by a pair of upright bar with height and
Multiple tracks crossbeam is fixed to be formed, and traditional ladder length is big, is placed after can only laterally toppling over, when need transport or carry when due to
Length is not excessive easily contained, has inconvenience.
In consideration of it, occur in the market it is partially folded ladder and extension ladder, extension ladder relative to folding ladder due to its storage after
Volume it is smaller and widely liked, existing major part extension ladder pushes one to dial key and realizes internal limit using thumb
The flexible and limit of ladder is realized in the change of position mechanism position, since the direction and thumb that promote ladder push position-limit mechanism
Direction is inconsistent, and force is difficult, and it is flexible easily to cause ladder can not be successfully because of thumb actuating length deficiency, uses
It is more inconvenient.
Utility model content
The purpose of the utility model is to provide a kind of push types that the flexible adjustment of ladder and limit are controlled by pressing mode
Extension ladder.
To achieve the above object, realized by following technological means: a kind of pressing type telescopic ladder, including a pair are arranged in parallel
Upright bar, upright bar is made of the hollow stem that several calibers gradually reduce, and a upper hollow stem can be accommodated in next hollow stem and every
The upper and lower side of side lever wall is respectively equipped with jack and lower jack in one hollow stem, and each pair of corresponding hollow stem top is all horizontal with one
Beam connection, is provided with a connection structure, the connection structure includes the set for being fixed in hollow stem top between hollow stem and crossbeam
Cylinder and the inserting handle being plugged in beam-end, the inserting handle is interior to be equipped with control mechanism, and the control mechanism is slotting including being limited in
Limit pipe sleeve of the handle far from sleeve one end, can the flexible spacer pin of relative limit pipe sleeve, be set to limit pipe sleeve and spacer pin it
Between spring and by press drive spacer pin to limit pipe sleeve shrink pressing mechanism, when spacer pin stretch out when be sequentially inserted into
Upper jack and lower jack limit the movement of the upper relatively next hollow stem of a hollow stem；The then retraction position-limiting tube when spacer pin is shunk
Set, a upper hollow stem can relatively next hollow stem elevating movement, being circumferentially recessed inwardly in spacer pin middle section has an annular groove, described slotting
Be provided with a fluting on the side side wall of handle, be provided with the pressing mechanism in fluting, pressing mechanism include strip by
Bar and in by bar close to limit pipe sleeve side in the symmetrically arranged two panels intermediate plate in one end, be less than by the angle of bar and intermediate plate
90 °, intermediate plate is symmetrically convexly equipped with turn with the rotation connection of groove upper and lower side in the two sides for clamping spacer pin in annular groove, by bar upper and lower side
Axis presses side of the bar far from intermediate plate in its one end far from intermediate plate and has been wholely set a button, inwardly vertical on beam side wall
When pressing the button, the intermediate plate is rotated to close to one end of limit pipe sleeve, and the spacer pin is in contraction state.
It advanced optimizes are as follows: when spacer pin stretching, extension, described to flush by bar with fluting, the button is outwardly protruded to fluting
It is external.
It advanced optimizes are as follows: the angle by bar and the intermediate plate is 60 °.
It advanced optimizes are as follows: concave end has one to extend to the groove that both ends are used to accommodate spacer pin on the inserting handle, described
The one end of inserting handle far from sleeve has a length to be greater than the accommodation groove that recess width is used to accommodate limit pipe sleeve from bottom notch, described
Limit pipe sleeve includes one end with the tube body being open and is set to tube wall and the mating limited block of accommodation groove.
It advanced optimizes are as follows: the inserting handle symmetrically offers threaded hole on the two sides outer wall of one end of sleeve, described
The two sides of crossbeam are respectively arranged with through-hole corresponding with threaded hole at both ends, are provided on the through-hole when crossbeam and inserting handle are worn
Inserting passes through the fastening screw of through-hole and threaded hole tight fit after closing.
It advanced optimizes are as follows: concave end has a sliding slot under the lowermost hollow stem, is fixed with one after interting cooperation in sliding slot
Length is greater than the support rod of crossbeam.
It advanced optimizes are as follows: the support rod both ends are arranged with rubber antiskid set
It advanced optimizes are as follows: be provided with the elasticity that one holds onto all crossbeams after the storage of all hollow stems on extension ladder and tie up
Band.
The utility model compared with prior art the advantages of be: using pressing mechanism replace tradition by thumb push group
The mode of key realizes the flexible of spacer pin, and by being from the inside vertical pressing button in the side of crossbeam, compared to from bottom to up
Pressing mode, it is possible to prevente effectively from ladder causes hand to be pinched situation during contraction；In addition, making spacer pin by pressing
Shift position is abundant, avoid as spacer pin shift position it is inadequate caused by stretch inconvenient phenomenon；Pressing mechanism is opposite to dial key
Mode, more laborsaving can be one by making spacer pin quickly carry out shrinking to facilitate the flexible of extension ladder on earth；The pressing
Simple, rapid operation is arranged in formula extension ladder, and smoothness of stretching effectively can avoid hand from being pinched.
Detailed description of the invention
Fig. 1 is a kind of main view of pressing type telescopic ladder in the present embodiment；
Fig. 2 is a kind of local broken away view of pressing type telescopic ladder in the present embodiment；
Fig. 3 is the enlarged drawing of A in Fig. 2；
Fig. 4 is the main view of a kind of pressing type telescopic ladder wherein one group of crossbeam and hollow tube in the present embodiment；
Fig. 5 is the A-A cross-sectional view of Fig. 4；
Fig. 6 is the enlarged drawing of B in Fig. 5.
In figure, 1, hollow stem；101, upper jack；102, lower jack；2, connection structure；201, sleeve；202, inserting handle；3, horizontal
Beam；301, through-hole；4, elastic bands；5, support rod；6, pipe sleeve is limited；601, tube body；602, limited block；7, spacer pin；701,
Annular groove；8, spring；9, pressing mechanism；901, bar is pressed；902, intermediate plate；903, shaft；904, button.
Specific embodiment
It is described in further detail with reference to the accompanying drawing and by specific embodiment to utility model, following embodiment only describes
Property, it is not restrictive the protection scope of the utility model.
Embodiment
A kind of pressing type telescopic ladder, referring to Fig.1 shown in-Fig. 6, including a pair of upright bar disposed in parallel, if upright bar is by main pipe
The hollow stem 1 that diameter gradually reduces is constituted, and a upper hollow stem 1 can be accommodated in next hollow stem 1 and side lever wall in each hollow stem 1
Upper and lower side be respectively equipped with jack 101 and lower jack 102, each pair of corresponding 1 top of hollow stem is all connect with a crossbeam 3,
A connection structure 2 is provided between hollow stem 1 and crossbeam 3, which includes the sleeve 201 for being fixed in 1 top of hollow stem
And it is plugged in the inserting handle 202 in 3 end of crossbeam, control mechanism is equipped in inserting handle 202, sleeve 201 is socketed in corresponding
The upper end of empty bar 1 is simultaneously fastened with screw.
Control mechanism is detailed in Fig. 2, including being limited in limit pipe sleeve 6 of the inserting handle 202 far from 201 one end of sleeve, can opposite limit
Pipe sleeve 6 flexible spacer pin 7 in position is set to the spring 8 limited between pipe sleeve 6 and spacer pin 7 and drives limit by pressing
The pressing mechanism 9 that pin 7 is shunk to limit pipe sleeve 6, concave end has one to extend to both ends for accommodating spacer pin 7 on inserting handle 202
Groove, groove close to one end of sleeve 201 penetrate 201 inner wall of sleeve after it is corresponding with upper jack 101；Limiting pipe sleeve 6 includes
Tube body 601 of the one end with opening and be set to the limited block 602 of 601 outer wall of tube body, inserting handle 202 far from sleeve 201 one
Holding from bottom notch has a length to be greater than the accommodation groove that recess width is used to accommodate limited block 602, and inserting handle 202 is close to sleeve 201
One end two sides outer wall on symmetrically offer threaded hole, the two sides of crossbeam 3 are respectively arranged with corresponding with threaded hole at both ends
Through-hole 301, pass through through-hole 301 and threaded hole close-fitting after being provided on through-hole 301 when the interspersed cooperation of crossbeam 3 and inserting handle 202
The fastening screw of conjunction.
Circumferentially being recessed inwardly in 7 middle section of spacer pin has an annular groove 701, is detailed in Fig. 3, Fig. 6, in the side side wall of inserting handle 202
On be provided with a fluting, be provided with pressing mechanism 9 in fluting, pressing mechanism 9 includes strip by bar 901 and in pressing bar
The side of 901 close limit pipe sleeves 6 is less than in the symmetrically arranged two panels intermediate plate 902 in one end by bar 901 and the angle of intermediate plate 902
90 °, preferably 60 ° of angle, intermediate plate 902 in the two sides for clamping spacer pin 7 in annular groove 701, by 901 upper and lower side of bar be symmetrically convexly equipped with
The shaft 903 of groove upper and lower side rotation connection, the side by bar 901 far from intermediate plate 902 is in its one end one far from intermediate plate 902
Be provided with a button 904, when vertical sidewall presses inward against button 904, intermediate plate 902 along shaft 903 rotate push spacer pin 7 to
Limit 6 direction of pipe sleeve retraction make a hollow stem 1 can relatively next 1 elevating movement of hollow stem, direction and ladder due to pressing
Shrinkage direction is vertical, relative to pressing the inside vertical pressing button of side side wall by crossbeam from bottom to up it is possible to prevente effectively from ladder
Lead to the situation that hand is pinched when sub downward rapid desufflation, improves the safety of ladder operation.
Pressing mechanism 9 may be disposed at any side of 202 two sides side wall of inserting handle, when extension ladder be in contraction state need by
When layer stretching, extension, at the beginning, the upper jack 101 of the lower hollow stem 1 of 102 misalignment of lower jack of a upper hollow stem 1,7 quilt of spacer pin
It is against on solid 1 outer wall of hollow stem, a hollow stem 1 can be lifted directly up up to the lower jack of a upper hollow stem 1
102 are aligned with the upper jack 101 of next hollow stem 1, at this time the underthrust of the upper hollow stem 1 of insertion under the effect of spring 8 of spacer pin 7
Overhead bar after the stretching, extension of 102 pairs of hole limits；If desired the extension ladder of stretching, extension is re-started into compression, then, is pressed into fluting
Button 904 is pressed, inwardly rotation makes intermediate plate 902 as shaft 903 is to the rotation of close limit 6 direction of pipe sleeve by bar 901, to push
Spacer pin 7 bounces back to limit pipe sleeve 6, and spacer pin 7 is made to leave the lower jack 102 of a hollow stem 1, and a upper hollow stem 1 is fast at this time
Speed decline is shunk, and by above-mentioned setting, extension ladder may be implemented layer-by-layer Quick extension and contraction, laborsaving and conveniently, and
Extension ladder is very smooth when flexible, effectively increases the safety of operation again relative to pressing mode from the bottom up.
The elastic bands 4, Ke Yiyou that all crossbeams 3 are held onto after the storage of all hollow stems 1 are provided on extension ladder
Effect avoids hollow tube without stretching under external force when stretching.
The lower concave end of the lowermost hollow stem 1 has a sliding slot, interts that be screwed a length after cooperation big in sliding slot
In the support rod 5 of crossbeam 3, it is arranged with rubber antiskid set at 5 both ends of support rod, the friction on extension ladder and ground can be effectively increased
Power increases safety coefficient.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of pressing type telescopic ladder, including a pair of upright bar disposed in parallel, the hollow stem that upright bar is gradually reduced by several calibers
(1) it constitutes, a upper hollow stem (1) can be accommodated in next hollow stem (1) and the upper and lower side of each interior side lever wall of hollow stem (1) point
Not She You upper jack (101) and lower jack (102), each pair of corresponding hollow stem (1) top all connect with a crossbeam (3), in
A connection structure (2) are provided between empty bar (1) and crossbeam (3), which is characterized in that the connection structure (2) includes being fixed in
The sleeve (201) on hollow stem (1) top and the inserting handle (202) being plugged in crossbeam (3) end, the inserting handle (202) is interior to be set
There is a control mechanism, the control mechanism includes the limit pipe sleeve (6) being limited in inserting handle (202) far from sleeve (201) one end, can phase
To the flexible spacer pin (7) of limit pipe sleeve (6), the spring (8) being set between limit pipe sleeve (6) and spacer pin (7) and lead to
The pressing mechanism (9) that pressing drives spacer pin (7) to shrink to limit pipe sleeve (6) is crossed, is sequentially inserted into when spacer pin (7) are stretched out
Jack (101) and lower jack (102) limit the movement of the upper relatively next hollow stem (1) of a hollow stem (1)；When spacer pin (7) are received
When contracting then retraction limit pipe sleeve (6), a upper hollow stem (1) can relatively next hollow stem (1) elevating movement, in spacer pin (7)
Duan Zhouxiang, which is recessed inwardly, to be had an annular groove (701), is provided with a fluting on the side side wall of the inserting handle (202), is set in fluting
It is equipped with the pressing mechanism (9), pressing mechanism (9) includes strip by bar (901) and in by bar (901) close position-limiting tube
The side of (6) is covered in the symmetrically arranged two panels intermediate plate (902) in one end, by the angle of bar (901) and intermediate plate (902) less than 90 °, folder
Piece (902) is symmetrically convexly equipped with and groove upper and lower side in the two sides for clamping spacer pin (7) in annular groove (701) by bar (901) upper and lower side
The shaft (903) of rotation connection is integrally set far from the side of intermediate plate (902) in its one end far from intermediate plate (902) by bar (901)
A button (904) are equipped with, when button (904) described in vertical pressing inside on crossbeam (3) side wall, the intermediate plate (902) is to leaning on
One end rotation of nearly limit pipe sleeve (6), the spacer pin (7) are in contraction state.
2. a kind of pressing type telescopic ladder according to claim 1, which is characterized in that described to press bar when spacer pin stretching, extension
It is flushed with fluting, the button is outwardly protruded to grooved exterior.
3. a kind of pressing type telescopic ladder according to claim 1, which is characterized in that described to press bar (901) and the intermediate plate
(902) angle is 60 °.
4. a kind of pressing type telescopic ladder according to claim 1, which is characterized in that there is concave end on the inserting handle (202)
One extends to both ends for accommodating the groove of spacer pin (7), and the one end of the inserting handle (202) far from sleeve (201) is recessed from bottom
Falling into has a length to be greater than the accommodation groove () that recess width is used to accommodate limit pipe sleeve (6), and the limit pipe sleeve (6) includes one end
Tube body (601) with opening and it is set to tube body (601) outer wall and the mating limited block of accommodation groove (602).
5. a kind of pressing type telescopic ladder according to claim 4, which is characterized in that the inserting handle (202) is close to sleeve
(201) symmetrically offer threaded hole on the two sides outer wall of one end, the two sides of the crossbeam (3) be respectively arranged at both ends with
The corresponding through-hole of threaded hole (301) is provided on the through-hole (301) and passes through after crossbeam (3) and inserting handle (202) interspersed cooperation
The fastening screw of through-hole (301) and threaded hole tight fit.
6. a kind of pressing type telescopic ladder described in -5 any one according to claim 1, which is characterized in that the lowermost hollow stem
(1) concave end has a sliding slot under, is fixed with the support rod (5) that a length is greater than crossbeam (3) after cooperation is interted in sliding slot.
7. a kind of pressing type telescopic ladder according to claim 6, which is characterized in that support rod (5) both ends are arranged with
Rubber antiskid set.
8. a kind of pressing type telescopic ladder according to claim 7, which is characterized in that be provided with one on extension ladder and work as in all
The elastic bands (4) of all crossbeams (3) are held onto after empty bar (1) storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821882962.4U CN209556906U (en) | 2018-11-15 | 2018-11-15 | A kind of pressing type telescopic ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821882962.4U CN209556906U (en) | 2018-11-15 | 2018-11-15 | A kind of pressing type telescopic ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209556906U true CN209556906U (en) | 2019-10-29 |
Family
ID=68299287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821882962.4U Active CN209556906U (en) | 2018-11-15 | 2018-11-15 | A kind of pressing type telescopic ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209556906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030650A (en) * | 2021-11-26 | 2022-02-11 | 哈尔滨工业大学 | Semi-rigid sleeve type inflatable expansion sealed cabin capable of freely stretching |
-
2018
- 2018-11-15 CN CN201821882962.4U patent/CN209556906U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030650A (en) * | 2021-11-26 | 2022-02-11 | 哈尔滨工业大学 | Semi-rigid sleeve type inflatable expansion sealed cabin capable of freely stretching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A press type telescopic ladder Effective date of registration: 20220725 Granted publication date: 20191029 Pledgee: Pan'an sub branch of Zhejiang Chouzhou Commercial Bank Co.,Ltd. Pledgor: Zhejiang mingfeng industry & trade Co.,Ltd. Registration number: Y2022330001512 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20191029 Pledgee: Pan'an sub branch of Zhejiang Chouzhou Commercial Bank Co.,Ltd. Pledgor: Zhejiang mingfeng industry & trade Co.,Ltd. Registration number: Y2022330001512 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A press type telescopic ladder Granted publication date: 20191029 Pledgee: Pan'an sub branch of Zhejiang Chouzhou Commercial Bank Co.,Ltd. Pledgor: Zhejiang mingfeng industry & trade Co.,Ltd. Registration number: Y2024330000978 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |