CN202596746U - Active support miniature constant-resistance tent leg - Google Patents
Active support miniature constant-resistance tent leg Download PDFInfo
- Publication number
- CN202596746U CN202596746U CN 201220216643 CN201220216643U CN202596746U CN 202596746 U CN202596746 U CN 202596746U CN 201220216643 CN201220216643 CN 201220216643 CN 201220216643 U CN201220216643 U CN 201220216643U CN 202596746 U CN202596746 U CN 202596746U
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- CN
- China
- Prior art keywords
- tent leg
- resistance
- support
- leg
- moving body
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- Expired - Fee Related
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Abstract
The utility model discloses an active support miniature constant-resistance tent leg, which belongs to an underground roadway support. The active support miniature constant-resistance tent leg comprises a tent leg lower moving body, a tent leg upper moving body, a flange, a jack, a base, a fixed card and a steel plate, wherein the flange is connected between the tent leg lower moving body and the tent leg upper moving body, the steel plate is connected on the bottom end of the tent leg lower moving body, a sway brace in 15 degrees is connected on the top end of the tent leg upper moving body, the tent leg upper moving body is connected with a lifting power device, the lifting power device comprises the base, the fixed card and the jack connected between the base and the fixed card. The active support miniature constant-resistance tent leg has the advantages that the active support miniature constant-resistance tent leg has the performance of active supporting, miniature, constant resistance and side pressure resistance, and integrates supporting, avoiding and resisting principle of a surrounding rock support into an integrated body. The active support miniature constant-resistance tent leg and a support lifting power device are active components, the active support miniature constant-resistance tent leg is simple in integral structure, can be conveniently mounted and dismounted, is easy to process and simple to operate, can be used in no-hydraulic medium sites. The active support miniature constant-resistance tent leg is a support protection device which integrates the supporting, the avoiding and the resisting of the surrounding rock support into the integrated body.
Description
Technical field
The utility model relates to a kind of underworkings supporting, particularly a kind of Active support micro constant-resistance canopy leg.
Background technology
The maintenance mode that at present tunnel in bad repair is adopted mainly contains anchor shaft anchor cable maintenance, log hut maintenance, the maintenance of friction-type pillar, hydraulic prop maintenance, the trapezoidal canopy maintenance of i iron, the maintenance of U shaped steel arched roof etc.; These maintenance modes respectively have superiority, but all have problems.
Though it is with the anchor rete cord is that master's reinforcement technology reinforcement ability is strong, helps to wreck for top board and two, cracked serious and have the tunnel of situation such as trickle inapplicable.
Log hut, H shaped steel shack though have certain lateral pressure resistant ability, have the shortcoming of two aspects: the one, there is not initiatively support force, and belong to the passive protecting mode, the easy absciss layer of roof strata can not make full use of the self-bearing capacity of country rock; The 2nd, supporting is can the amount of contracting small, belongs to the rigidity supporting, deformation failure very easily behind the pressurized.
I iron collapsible timbering and U shaped steel collapsible timbering still belong to the passive protecting mode, can carry excessive the damage because of the roof strata absciss layer.
Though the hydraulic prop maintenance is easy and simple to handle; And can Active support be provided to back in bad repair; But receive the restriction of power liquid-supplying system, in not laying the tunnel in bad repair of dynamicliquid pressure pipeline, can only adopt dustproof water to boost; Cause abutment pressure little, the superior support performance of hydraulic prop can not get performance; Hydraulic prop costs an arm and a leg in addition, and it is long to be used for the roadway repairing holding time, is in the easy corrosion of supporting state for a long time, and is prone to fractureed by lateral pressure, just scraps after the disposable use, and cost is high, and waste is serious.
The utility model content
The purpose of the utility model is that a kind of Active support micro constant-resistance canopy leg will be provided, and solves existing lane and repaiies the problem that support material Active support power and lateral pressure resistant property can not be taken into account.
The purpose of the utility model is achieved in that this canopy leg comprises: live body on live body, the canopy leg, card orchid, jack, pedestal, fixed card and steel plate under the canopy leg; Be connected with the card orchid on live body under the canopy leg and the canopy leg between the live body, the bottom of live body is connected with steel plate under the canopy leg; The top of live body is connected with and is 15 ° bearing diagonal on the canopy leg; Be connected with lift unit on the live body on the canopy leg, described lift unit comprises pedestal, fixed card and jack, between pedestal and fixed card, is connected with jack.
Beneficial effect is owing to adopted such scheme, canopy leg material selection U type channel-section steel; The lateral pressure resistant performance is good, and sturdy and durable, compressive resistance is big, flexible, supporting time are lasting, and the canopy leg is designed to live body up and down; The combination of employing dock; And, have the micro amount behind the pressurized with the blue connection of card, play the pressure effect that lets; Card is blue, the frictional force between the live body makes the canopy leg have constant working resistance up and down, can improve canopy leg working resistance through the friction factor that increases between card orchid and canopy leg and the canopy leg live body; Adopt lift unit for the canopy leg setting load to be provided, lift unit is a bascule, and installation and removal easily are easy and simple to handle, makes the canopy leg realize Active support.Solve existing lane and repair the problem that support material Active support power and lateral pressure resistant property can not be taken into account, reached the purpose of the utility model.
Advantage: canopy leg deft design, superior performance.Active support micro constant-resistance canopy leg has the performance of Active support, micro, constant-resistance, lateral pressure resistant simultaneously, integrates that surrounding rock supporting props up, lets, antigen is managed; Canopy leg and support lift unit are movable part, and overall structure is simple, can install easily and remove, and handling ease, simple to operate, can use in no hydraulic medium place.Active support, micro, constant-resistance, anti-pressure measurement property can be provided, the supporting equipment that props up, lets, resists for integrating surrounding rock supporting.
Description of drawings
Fig. 1 is the overall structure sketch map of an instance of the utility model.
Among the figure, 1, live body under the canopy leg; 2, live body on the canopy leg; 3, card is blue; 4, jack; 5, pedestal; 6, fixed card; 7, steel plate.
The specific embodiment
Embodiment 1: this canopy leg comprises: live body 2 on live body 1, the canopy leg under the canopy leg, card are blue 3, jack 4, pedestal 5, fixed card 6 and steel plate 7; Be connected with card orchid 3 on live body 1 under the canopy leg and the canopy leg between the live body 2, the bottom of live body 1 is connected with steel plate under the canopy leg; The top of live body 2 is connected with and is 15 ° bearing diagonal on the canopy leg; Be connected with lift unit on the live body 2 on the canopy leg, described lift unit comprises pedestal 5, fixed card 6 and jack 4, between pedestal 5 and fixed card 6, is connected with jack 4.
In Fig. 1, live body 1 bottom adopts steel plate 7 processing welderings to process the plane under the canopy leg, and last live body 2 tops adopt steel plate 7 processing welderings to process 15 ° bearing diagonal; Measure bearing height; Up and down live body overlaps, and connects Len req, and canopy leg not till the play about tightening to card blue 3.Prop up the canopy leg, pedestal 5, fixed card 6 and the jack 4 of lift unit is installed successively, protect top back of the body group; Artificial rising jack 4 rises sufficient strength, connects reality up to last live body 2 tops and top board; Use box spanner with blue 3 screw tightenings of two groups of cards, guarantee that its moment of torsion is not less than 300Nm.Fall jack 4 at last, remove lift unit, accomplish supporting.
Claims (1)
1. Active support micro constant-resistance canopy leg, it is characterized in that: this canopy leg comprises: live body, card orchid, jack, pedestal, fixed card and steel plate on live body, the canopy leg under the canopy leg; Be connected with the card orchid on live body under the canopy leg and the canopy leg between the live body, the bottom of live body is connected with steel plate under the canopy leg; The top of live body is connected with and is 15 ° bearing diagonal on the canopy leg; Be connected with lift unit on the live body on the canopy leg, described lift unit comprises pedestal, fixed card and jack, between pedestal and fixed card, is connected with jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216643 CN202596746U (en) | 2012-05-15 | 2012-05-15 | Active support miniature constant-resistance tent leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216643 CN202596746U (en) | 2012-05-15 | 2012-05-15 | Active support miniature constant-resistance tent leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596746U true CN202596746U (en) | 2012-12-12 |
Family
ID=47314293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220216643 Expired - Fee Related CN202596746U (en) | 2012-05-15 | 2012-05-15 | Active support miniature constant-resistance tent leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832830A (en) * | 2020-12-31 | 2021-05-25 | 山东省煤田地质规划勘察研究院 | Mining anti-impact double-column combined pier column structure, supporting system and construction method |
-
2012
- 2012-05-15 CN CN 201220216643 patent/CN202596746U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832830A (en) * | 2020-12-31 | 2021-05-25 | 山东省煤田地质规划勘察研究院 | Mining anti-impact double-column combined pier column structure, supporting system and construction method |
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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 |
Granted publication date: 20121212 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |