CN110295556A - A kind of lifting column for being not easy to break - Google Patents
A kind of lifting column for being not easy to break Download PDFInfo
- Publication number
- CN110295556A CN110295556A CN201910662971.5A CN201910662971A CN110295556A CN 110295556 A CN110295556 A CN 110295556A CN 201910662971 A CN201910662971 A CN 201910662971A CN 110295556 A CN110295556 A CN 110295556A
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- China
- Prior art keywords
- lifting
- inner prop
- easy
- limit
- break
- 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.)
- Pending
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- 241001391944 Commicarpus scandens Species 0.000 title claims abstract description 22
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/044—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface
- E01F13/046—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface the obstructing members moving up in a translatory motion, e.g. telescopic barrier posts
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of lifting columns for being not easy to break, belong to lifting column field, a kind of lifting column for being not easy to break disclosed by the invention, including pre-buried cylinder, lifting inner prop, pre-buried cylinder is fixed on subsurface, and lifting inner prop is located in pre-buried cylinder, and goes up and down inner prop and move back and forth along the axial direction of pre-buried cylinder, lifting inner prop Basolateral is provided with several limit cords, is provided with interval notch between two neighboring limit cord.Limit cord between interval notch fallen convenient for sandstone so that lifting inner prop be not easy it is stuck.When lifting inner prop is knocked from side, it offsets positioned at several limit cord lower end outsides for being hit side with pre-buried medial wall of the tube, it offsets on the outside of several limit cords upper end of the other side with pre-buried medial wall of the tube, the limit cord upper end stress of side when being knocked, the limit cord lower end stress of the other side, the stress point of dislocation, which is arranged so that increasing torque, more preferably to be kept balancing, so that lifting inner prop is not easy to be knocked down.
Description
Technical field
The present invention relates to lifting column field more particularly to a kind of lifting columns for being not easy to break.
Background technique
Hydraulic lifting post is also known as lifting land column, elevating road stake, the stake of Anti-knocking road, hydraulic lifting post, isolation pile etc..English name
Claim Bollard.As soon as Bollard word initially describes a kind of short and small vertical pillar, harbour large vessel is often used when berthing
They.Nowadays its meaning has expanded, and for describing various management pedestrian traffics, protects critical infrastructures, sets circumference, area
The plant mechanics on shunting road.
A kind of pneumatic fast lifting column disclosed in Chinese patent literature publication number CN206298847U, elevating mechanism include rising
Column cylinder, guide ring, lifting column upper end cover drop；Guide ring at least twice, top and the bottom respectively at least together, are welded on liter in parallel
The outer surface of column cylinder drops；During lifting column cylinder moves up and down, guide ring is slided up and down along lifting column guide cylinder.
Existing lifting column is generally used guide ring be oriented to and flexible limit, guide ring finite thickness, thus
So that guide ring load scarce capacity uses simultaneously so that lifting column crash-protective characteristics are insufficient when lifting column is knocked
Guide ring makes sandstone be easy to fall in the gap in guide surface to be caught in around guide ring, to be easy to cause lifting column
It is stuck.
Summary of the invention
In order to overcome the drawbacks of the prior art, technical problem to be solved by the present invention lies in propose a kind of to be not easy to break
Lifting column, the limit cord upper end stress of side when being knocked, the limit cord lower end stress of the other side, the stress point of dislocation are set
It sets so that increasing torque and more preferably keeps balancing, while limiting the interval notch between cord and being fallen convenient for sandstone, so that in lifting
Column is not easy stuck.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of lifting column for being not easy to break provided by the invention, including pre-buried cylinder, lifting inner prop, pre-buried cylinder are fixed on ground
Under, lifting inner prop is located in pre-buried cylinder, and goes up and down inner prop and move back and forth along the axial direction of pre-buried cylinder, goes up and down inner prop Basolateral
Several limit cords are provided with, are provided with interval notch between two neighboring limit cord；It is hit in lifting inner prop from side
When hitting, offset positioned at several limit cord lower end outsides for being hit side with pre-buried medial wall of the tube, several limits positioned at the other side
It offsets on the outside of cord upper end with pre-buried medial wall of the tube, limit cord is consolidating for entire limit cord with the power transmission position for going up and down inner prop
Determine face.
The present invention preferably technical solution is, pre-buried medial wall of the tube is provided at least two guide rail, at least two
The width of interval notch matches with guide rail.
The present invention preferably technical solution is, reinforcement supporting block is provided at least one interval notch, reinforces support
Block is fixedly connected with lifting inner prop.
The present invention preferably technical solution is that reinforcing support stock material is any one of nylon, rubber, silica gel.
The present invention preferably technical solution is, reinforces the thickness that supporting block thickness is greater than limit cord.
The present invention preferably technical solution is, limits and is provided with gap between cord and pre-buried medial wall of the tube, reinforces branch
Gap is provided between bracer and pre-buried medial wall of the tube.
The present invention preferably technical solution is that the length for limiting cord is 5cm-50cm.
The present invention preferably technical solution is that the spacing of limit cord and pre-buried medial wall of the tube is 3mm-30mm.
The present invention preferably technical solution is that the top of pre-buried cylinder is provided with position-arresting disk, and position-arresting disk is provided centrally with logical
Hole, lifting inner prop pass through through-hole, and when lifting inner prop rises to top, limit cord top surface offsets with position-arresting disk downside.
The present invention preferably technical solution is, further includes binodal hydraulic electric motor, and binodal hydraulic electric motor one end is fixed on pre-
An inner bottom is buried, lifting inner prop is socketed on the outside of binodal hydraulic electric motor, and lifting inner prop upper end is internally provided with fixed disk, double
The power output end for saving hydraulic electric motor is fixedly connected with fixed disk center.
The invention has the benefit that
A kind of lifting column for being not easy to break provided by the invention, including pre-buried cylinder, lifting inner prop, pre-buried cylinder are fixed on ground
Under, lifting inner prop is located in pre-buried cylinder, and goes up and down inner prop and move back and forth along the axial direction of pre-buried cylinder, goes up and down inner prop Basolateral
Several limit cords are provided with, are provided with interval notch between two neighboring limit cord.The interval limited between cord lacks
Mouthful fallen convenient for sandstone so that lifting inner prop be not easy it is stuck.
When lifting inner prop is knocked from side, on the inside of several limit cord lower end outsides and pre-buried cylinder for being hit side
Wall offsets, and offsets on the outside of several limit cords upper end of the other side with pre-buried medial wall of the tube, the limit of side when being knocked
The stress point of cord upper end stress, the limit cord lower end stress of the other side, dislocation is arranged so that increasing torque more preferably keeps flat
Weighing apparatus, so that lifting inner prop is not easy to be knocked down.
Limiting cord and going up and down the power transmission position of inner prop is the stationary plane of entire limit cord.So that the fixation of limit cord
Locating uniform force can be to avoid place-limited edge fracture damage when by greater impact power.
Detailed description of the invention
Fig. 1 is the three-dimensional structure signal of the lifting column raised configuration for being not easy to break provided in the specific embodiment of the invention
Figure；
Fig. 2 is showing for the cross-section structure of the lifting column raised configuration for being not easy to break provided in the specific embodiment of the invention
It is intended to；
Fig. 3 is part A enlarged diagram in the Fig. 2 provided in the specific embodiment of the invention；
Fig. 4 is the lifting inner prop bottom end three dimensional structure diagram provided in the specific embodiment of the invention；
Fig. 5 is the three-dimensional structure signal of the lifting column contraction state for being not easy to break provided in the specific embodiment of the invention
Figure；
Fig. 6 is part B enlarged structure schematic diagram in the Fig. 5 provided in the specific embodiment of the invention；
In figure:
1, binodal hydraulic electric motor；2, pre-buried cylinder；3, inner prop is gone up and down；4, position-arresting disk；22, guide rail；31, cord is limited；32,
Every notch；33, reinforce supporting block.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As Figure 1 and Figure 4, a kind of lifting column for being not easy to break provided in the present embodiment, including pre-buried cylinder 2, lifting
Inner prop 3, pre-buried cylinder 2 are fixed on subsurface, and lifting inner prop 3 is located in pre-buried cylinder 2, and goes up and down inner prop 3 along the axial direction side of pre-buried cylinder 2
To moving back and forth, lifting 3 Basolateral of inner prop is provided with several limit cords 31, is respectively provided between two neighboring limit cord 31
There is interval notch 32.Traditional limit ring design, sandstone are fallen at stop collar end face, and sandstone can fall on stop collar margin location
It sets, to be easy to cause lifting inner prop 3 stuck.The design is limited and is deposited between cord 31 using the design of multiple limit cords 31
In interval notch 32, so that sandstone can fall to pre-buried 2 bottom of cylinder, reduces lifting to the full extent inner prop 3 is stuck and ask
Topic.
As shown in Figure 2 and Figure 3, when lifting inner prop 3 is knocked from side, under several limit cords 31 for being hit side
End outside offsets with pre-buried 2 inner sidewall of cylinder, several 31 upper ends of limit cord outside and the pre-buried 2 inner sidewall phase of cylinder positioned at the other side
It supports, the power transmission position of limit cord 31 and lifting inner prop 3 is the stationary plane of entire limit cord 31.When hitting, in pre-buried cylinder 2
Side wall is to the active force obliquely of limit cord 31 of lower end stress, and 2 inner sidewall of pre-buried cylinder is to the limit cord of upper end stress
31 active force obliquely, so that certain torque can be generated, traditional limit annulus thinner thickness, so that in lifting
Column 3 is easy to damage when being knocked.The limit cord 31 of the strip of the design designs, and the length of limit cord 31 is 30cm
When, two sides stress point separates farther out, and limit cord 31 and the length of lifting 3 lateral wall of inner prop welding are larger, thus in torque
Under the action of, limit cord 31 is not easy desoldering damage, thus can also normal use after being knocked.
As shown in Figure 5, Figure 6, it is preferred that pre-buried 2 inner sidewall of cylinder is provided at least two guide rail 22, between at least two
Match every the width of notch 32 with guide rail 22.Being spaced notch 32 between two groups of limit cords 31 just can be with 22 phase of guide rail
Match, to can be also used for being oriented to while enhancing anticollision ability in limit cord 31, so that lifting inner prop 3 is moving up and down
When it is relatively stable.
As shown in Figure 4, it is preferred that be provided at least one interval notch 32 and reinforce supporting block 33, reinforce supporting block 33
It is fixedly connected with lifting inner prop 3, further, reinforcement 33 material of supporting block is nylon.And it is big to reinforce 33 thickness of supporting block simultaneously
In the thickness of limit cord 31.The instant impact that lifting inner prop 3 is often generated when being knocked is larger, and limits cord 31 1
As be welded on lifting inner prop 3 on, under the action of moment impulse force be easy desoldering fall, therefore using thickness be greater than limit cord 31
Nylon reinforce supporting block 33, in lifting inner prop 3 when being knocked, reinforce supporting block 33 and first contacted with pre-buried 2 inner sidewall of cylinder, by
In reinforce supporting block 33 have certain buffer capacity, can preferably absorb part of impact force so that limit cord 31 with
Impact force is smaller when pre-buried 2 inner sidewall of cylinder contacts, it is not easy to damage.
As shown in Figure 2, it is preferred that be provided with gap between limit cord 31 and 2 inner sidewall of pre-buried cylinder, reinforce supporting block 33
Gap is provided between pre-buried 2 inner sidewall of cylinder.The spacing for limiting cord 31 and pre-buried 2 inner sidewall of cylinder is 15mm.Between suitable
Away from setting so that lifting inner prop 3 is mounted in pre-buried cylinder 2 and is not easy to shake, while when going up and down the lifting of inner prop 3, reinforce branch
Bracer 33 and limit cord 31 will not all be contacted with pre-buried 2 inner sidewall of cylinder, so that will not be stuck when lifting, while it is reasonable
Spacing is arranged so that sandstone is also not easy stuck limiting between cord 31 and 2 inner sidewall of pre-buried cylinder.
As shown in Figure 2, it is preferred that the top of pre-buried cylinder 2 is provided with position-arresting disk 4, and position-arresting disk 4 is provided centrally with through-hole, rises
It drops inner prop 3 and passes through through-hole, when lifting inner prop 3 rises to top, limit 31 top surface of cord offsets with 4 downside of position-arresting disk.Through-hole
For going up and down passing through for inner prop 3, the gap between through-hole and lifting inner prop 3 be less than limit cord 31 and pre-buried 2 inner sidewall of cylinder it
Between gap so that sandstone it is more difficult fall it is stuck limit 31 position of cord.4 downside of position-arresting disk is provided with convex annular
The downside of platform, place-limited edge body and annular convex platform offsets, and the setting of annular convex platform is so that limit cord 31 is low when rising to top
In pre-buried 2 upper surface of cylinder, so that limit cord 31 can preferably offset with pre-buried 2 inner sidewall of cylinder, to mention when being knocked
Highly resistance collides ability.
It preferably, further include binodal hydraulic electric motor 1, pre-buried 2 inner bottom of cylinder is fixed in 1 one end of binodal hydraulic electric motor, rises
Drop inner prop 3 is socketed on the outside of binodal hydraulic electric motor 1, and lifting 3 upper end of inner prop is internally provided with fixed disk, binodal hydraulic electric motor 1
Power output end be fixedly connected with fixed disk center.The setting of binodal hydraulic electric motor 1, so that lifting regulation in lifting inner prop 3
When height, pre-buried cylinder 2 can be relative to lower using the height of conventional motors.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, of the invention not departing from
In the case where spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (10)
1. a kind of lifting column for being not easy to break, including pre-buried cylinder (2), lifting inner prop (3), the pre-buried cylinder (2) are fixed on ground
Under, the lifting inner prop (3) is located in the pre-buried cylinder (2), and lifting inner prop (3) is along the axial direction of the pre-buried cylinder (2)
Direction moves back and forth, it is characterised in that:
Lifting inner prop (3) Basolateral is provided with several limit cords (31), the two neighboring limit cord (31) it
Between be provided with interval notch (32)；
When lifting inner prop (3) is knocked from side, positioned at several limit cord (31) Basolaterals and institute for being hit side
It states pre-buried cylinder (2) inner sidewall to offset, several limit cord (31) apical laterals and the pre-buried cylinder (2) positioned at the other side
Inner sidewall offsets, and the power transmission position of limit cord (31) and lifting inner prop (3) is consolidating for entire limit cord (31)
Determine face.
2. the lifting column according to claim 1 for being not easy to break, it is characterised in that:
Pre-buried cylinder (2) inner sidewall is provided at least two guide rail (22), at least two interval notch (32)
Width matches with the guide rail (22).
3. the lifting column according to claim 1 for being not easy to break, it is characterised in that:
It is provided at least one described interval notch (32) and reinforces supporting block (33), the reinforcement supporting block (33) and the liter
Drop inner prop (3) is fixedly connected.
4. the lifting column according to claim 3 for being not easy to break, it is characterised in that:
Reinforcement supporting block (33) material is any one of nylon, rubber, silica gel.
5. the lifting column according to claim 3 for being not easy to break, it is characterised in that:
The thickness reinforced supporting block (33) thickness and be greater than limit cord (31).
6. the lifting column according to claim 3 for being not easy to break, it is characterised in that:
Be provided with gap between the limit cord (31) and the pre-buried cylinder (2) inner sidewall, the reinforcement supporting block (33) with
Gap is provided between pre-buried cylinder (2) inner sidewall.
7. the lifting column according to claim 1 for being not easy to break, it is characterised in that:
The length of limit cord (31) is 5cm-50cm.
8. the lifting column according to claim 1 for being not easy to break, it is characterised in that:
The spacing of limit cord (31) and pre-buried cylinder (2) inner sidewall is 3mm-30mm.
9. the lifting column according to claim 1 for being not easy to break, it is characterised in that:
The top of the pre-buried cylinder (2) is provided with position-arresting disk (4), and the position-arresting disk (4) is provided centrally with through-hole, in the lifting
Column (3) passes through the through-hole, when the lifting inner prop (3) rises to top, the limit cord (31) top surface and the limit
Disk (4) downside offsets.
10. the lifting column according to claim 1 for being not easy to break, it is characterised in that:
It further include binodal hydraulic electric motor (1), pre-buried cylinder (2) inner bottom is fixed in described binodal hydraulic electric motor (1) one end,
Lifting inner prop (3) is socketed on the outside of the binodal hydraulic electric motor (1), and lifting inner prop (3) upper end is internally provided with
The power output end of fixed disk, the binodal hydraulic electric motor (1) is fixedly connected with the fixed disk center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662971.5A CN110295556A (en) | 2019-07-22 | 2019-07-22 | A kind of lifting column for being not easy to break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662971.5A CN110295556A (en) | 2019-07-22 | 2019-07-22 | A kind of lifting column for being not easy to break |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110295556A true CN110295556A (en) | 2019-10-01 |
Family
ID=68031597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910662971.5A Pending CN110295556A (en) | 2019-07-22 | 2019-07-22 | A kind of lifting column for being not easy to break |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110295556A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102970A (en) * | 2019-12-25 | 2020-05-05 | 中国电建集团中南勘测设计研究院有限公司 | Lifting invisible observation pier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206376205U (en) * | 2017-01-12 | 2017-08-04 | 杭州弗维机电科技有限公司 | A kind of high intensity lifts pile |
| DE202016103527U1 (en) * | 2016-07-01 | 2017-10-05 | Jungheinrich Aktiengesellschaft | Aerial work platform with telescopic mast |
| CN207079508U (en) * | 2017-08-10 | 2018-03-09 | 北京万鼎腾达科技有限责任公司 | A kind of extension type lifting column |
| CN207295544U (en) * | 2017-09-26 | 2018-05-01 | 北京卓奥世鹏科技有限公司 | A kind of slide rail type lifting column |
| CN208701550U (en) * | 2018-08-01 | 2019-04-05 | 雷小涛 | A kind of lifting berth lock |
| CN210621550U (en) * | 2019-07-22 | 2020-05-26 | 漳州鑫永顺智能设备有限公司 | Lifting column not easy to be damaged by collision |
-
2019
- 2019-07-22 CN CN201910662971.5A patent/CN110295556A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202016103527U1 (en) * | 2016-07-01 | 2017-10-05 | Jungheinrich Aktiengesellschaft | Aerial work platform with telescopic mast |
| CN206376205U (en) * | 2017-01-12 | 2017-08-04 | 杭州弗维机电科技有限公司 | A kind of high intensity lifts pile |
| CN207079508U (en) * | 2017-08-10 | 2018-03-09 | 北京万鼎腾达科技有限责任公司 | A kind of extension type lifting column |
| CN207295544U (en) * | 2017-09-26 | 2018-05-01 | 北京卓奥世鹏科技有限公司 | A kind of slide rail type lifting column |
| CN208701550U (en) * | 2018-08-01 | 2019-04-05 | 雷小涛 | A kind of lifting berth lock |
| CN210621550U (en) * | 2019-07-22 | 2020-05-26 | 漳州鑫永顺智能设备有限公司 | Lifting column not easy to be damaged by collision |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102970A (en) * | 2019-12-25 | 2020-05-05 | 中国电建集团中南勘测设计研究院有限公司 | Lifting invisible observation pier |
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