CN2185794Y - Mining I-steel support with adjustable reinforcing device - Google Patents
Mining I-steel support with adjustable reinforcing device Download PDFInfo
- Publication number
- CN2185794Y CN2185794Y CN 93245742 CN93245742U CN2185794Y CN 2185794 Y CN2185794 Y CN 2185794Y CN 93245742 CN93245742 CN 93245742 CN 93245742 U CN93245742 U CN 93245742U CN 2185794 Y CN2185794 Y CN 2185794Y
- Authority
- CN
- China
- Prior art keywords
- fastener
- pin
- connecting rod
- clapboard
- mining
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract description 5
- 239000010959 steel Substances 0.000 title abstract description 5
- 230000003014 reinforcing effect Effects 0.000 title abstract 3
- 238000005065 mining Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
A mining I-steel bracket comprises a top beam and shed legs and is characterized in that an adjustable reinforcing device is arranged at the bent part of the top beam and the shed legs and consists of a connecting rod and fastening devices hinged at the two ends of the connecting rod; the fastening device comprises a fixed fastening piece, a movable fastening piece arranged in the fixed fastening piece and a wedge-shaped plate pin, and the shape of a fastening opening of the fastening device is matched with the wing eaves of the I-shaped steel. The adjustable reinforcing device can be suitable for I-steel supports of any shapes, is firm in fastening and convenient to erect on site, can greatly improve the bearing capacity of the supports, and meets the supporting requirements of large-section and large-pressure roadways.
Description
The utility model relates to mining bracket, especially a kind of mining i beam support that has adjustable stiffening device.
Usually, what mine support of underground tunnel employing was more is the mining i beam trapezoid support, this support mainly is made up of a crossbeam and two canopy legs, it makes simple, top board is smooth, and is easy for installation, but its supporting capacity is little, can not satisfy big section (span that is beam is bigger), the supporting requirement in big pressure tunnel.
China's utility model patent 9220948.1 " mining i beam trapezoid support " discloses the scheme that a kind of back timber bottom increases by an arc floor stringer, and its supporting capacity increases.But being shaped as of its arc floor stringer rigidly fixes shape, only can be applicable to trapezoid support, and arc assisting is by " ［ " shape clip and plate Xiao tighten, and clip will pass through a side of the close wall of support with being connected of support tightly, difficulty is set up at the scene, is unfavorable for promoting the use of.
A purpose of the present utility model provides a kind of mining i beam support that is provided with adjustable stiffening device; Its another purpose provides a kind of adjustable stiffening device that can be used for the i iron support of Any shape, to increase the rack bearing ability, satisfies big section, the supporting requirement in big pressure tunnel.
Mining i beam support of the present utility model, it is a kind of modified of existing support, it is made up of back timber and canopy leg, it is characterized in that: be provided with left and right adjustable stiffening device at its back timber and canopy leg round part, described adjustable stiffening device is made of connecting rod and the fastener that is hinged on these connecting rod two ends.
Described fastener comprises: the fixedly Fastener of a band interlock pawl, and its side is provided with ear seat with holes; A movable Fastener that is installed on the band interlock pawl in the described fixedly Fastener by pin; A clapboard pin, described clapboard pin can insert the location slotted hole that is arranged in movable Fastener positioning port place on the fixing Fastener, when the clapboard pin is advanced the positioning port of the location slotted hole of described fixedly Fastener and movable Fastener by wedge, the chucking degree of lip-rounding shape of fastener and the wing eaves of i iron match, thereby adjustable stiffening device is anchored on the support, to increase the supporting capacity of support greatly.
Its description of drawings is as follows:
Fig. 1 is an one embodiment trapezoid support structural representation;
Fig. 2 is the overall structure figure of its adjustable stiffening device;
Fig. 3 is to be the fastener structure chart of adjustable stiffening device;
Fig. 4 is the vertical view of Fig. 3.
(1) is the back timber of support among Fig. 1, (2) be the canopy leg, connecting rod (3) and fastener (4), (5) constitute adjustable stiffening device, connecting rod (3) is hinged with fastener (4), (5) respectively, the tight-lipped closed-bite maloccllusion of chucking of fastener (4), (5) is on back timber (1) and canopy leg (2), fastening point can be adjusted as required, and promptly the leg-of-mutton shape by parts (1), (2), (3), (4), (5) formation as shown in Figure 1 is fixing.This support had both had the smooth characteristics of trapezoid support back timber, had the loading characteristic of arch support again.
Adjustable stiffening device structure of the present utility model has been shown among Fig. 2, wherein each parts is: connecting rod (3), fastener (4), (5), little axle (6), fastener and connecting rod are hinged by little axle (6), so this device can be suitable for the mining i beam support use of different shape.
Fig. 3,4 is the structure chart of the fastener of above-mentioned tunable arrangement.Comprise: the fixedly Fastener (7) of a band interlock pawl, its side is provided with an ear seat with holes, and an end of its aclusion pawl has the location slotted hole; One is installed on the movable Fastener (8) of the band interlock pawl in the described fixedly Fastener (7) by pin (10), and this activity Fastener (8) arranged outside has positioning port; A clapboard pin (9), when this clapboard Xiao (9) tightly wedged the positioning port of the location slotted hole of described fixedly Fastener (7) and movable Fastener (8), the wing eaves of the chucking degree of lip-rounding shape of fastener and i iron (2) matched.
The parts of fastener can be foundry goods or forging, and fixedly Fastener (7) has an interlock pawl at least, or 2 interlock pawls are preferably arranged.During use, fixedly Fastener (7) is clamped on the i iron (2) earlier, again movable Fastener (8) fastening on i iron (2) opposite side, insert urgent the getting final product of clapboard Xiao (9) then.
Reasonable in design of the present utility model, cost is low, and its adjustable stiffening device can be applicable to that the i iron support of Any shape uses, and fastening firmly set up conveniently at the scene, can improve the rack bearing ability greatly, satisfies big section, the supporting requirement in big pressure tunnel.
Claims (5)
1, a kind of mining i beam support is made up of back timber and canopy leg, it is characterized in that: be provided with left and right adjustable stiffening device at back timber and canopy leg round part, the fastener at these connecting rod two ends constitutes described adjustable stiffening device by connecting rod and hinge joint.
2, support according to claim 1 is characterized in that described fastener comprises: the fixedly Fastener of a band interlock pawl, and its side is provided with ear seat with holes; A movable Fastener that is installed on the band interlock pawl in the described fixedly Fastener by pin; A clapboard pin, described clapboard pin can insert the location slotted hole that is arranged in movable Fastener positioning port place on the fixing Fastener, when the clapboard pin was tightly wedged the positioning port of the location slotted hole of described fixedly Fastener and movable Fastener, the chucking degree of lip-rounding shape of fastener and the wing eaves of i iron matched.
3, support according to claim 2 is characterized in that: have an interlock pawl on the described fixedly Fastener at least, or two interlock pawls are preferably arranged.
4, be used for the adjustable stiffening device of the described mining i beam support of any one claim of claim 1-3, it is characterized in that comprising: connecting rod and hinge joint are at the fastener at these connecting rod two ends; Described fastener comprises, the fixedly Fastener of a band interlock pawl, and its side is provided with ear seat with holes, and an end of its aclusion pawl has the location slotted hole; One is installed on the movable Fastener of the band interlock pawl in the described fixedly Fastener by pin, and this activity Fastener arranged outside has positioning port; When a clapboard pin, this clapboard pin were tightly wedged the positioning port of the location slotted hole of described fixedly Fastener and movable Fastener, the chucking degree of lip-rounding shape of fastener and the wing eaves of i iron matched.
5, adjustable stiffening device according to claim 4 is characterized in that: have an interlock pawl on the described fixedly Fastener at least, or two interlock pawls are preferably arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245742 CN2185794Y (en) | 1993-11-27 | 1993-11-27 | Mining I-steel support with adjustable reinforcing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245742 CN2185794Y (en) | 1993-11-27 | 1993-11-27 | Mining I-steel support with adjustable reinforcing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2185794Y true CN2185794Y (en) | 1994-12-21 |
Family
ID=33818608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93245742 Expired - Fee Related CN2185794Y (en) | 1993-11-27 | 1993-11-27 | Mining I-steel support with adjustable reinforcing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2185794Y (en) |
-
1993
- 1993-11-27 CN CN 93245742 patent/CN2185794Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |