CN201778826U - Double-splint butting type high-resistant high-compressible connector - Google Patents
Double-splint butting type high-resistant high-compressible connector Download PDFInfo
- Publication number
- CN201778826U CN201778826U CN2010205350526U CN201020535052U CN201778826U CN 201778826 U CN201778826 U CN 201778826U CN 2010205350526 U CN2010205350526 U CN 2010205350526U CN 201020535052 U CN201020535052 U CN 201020535052U CN 201778826 U CN201778826 U CN 201778826U
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- China
- Prior art keywords
- splint
- upper beam
- double
- column
- butt joint
- 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
A double-splint butting type high-resistant high-compressible connector comprises an upright post, an upper beam, an upper splint and a lower splint, wherein the upright post is provided with a U-shaped steel bracket, the upper splint and the lower splint are matched, the connection ends of the upright post and the upper beam are clamped between the two splints to form a butting structure, a gap with a certain length is formed between the ends of the upright post and the upper beam, and the edges of the upper splint and the lower splint are connected through bolts. The connector with the butting structure can fully exert the mechanical property of a material, has the advantage that compression is not refused, can obtain the axial resistance of the approach critical force as long as the gripping force is sufficiently large, and can exert the pressure-resistant ability of the shape steel bracket to the uttermost.
Description
One, technical field
The utility model relates to the used U shaped steel of a kind of mine underworkings supporting collapsible timbering, but particularly relates to a kind of butt joint with double straps formula high resistant height reducer coupling head of U shaped steel collapsible timbering.
Two, background technology
The used U shaped steel of mine underworkings supporting collapsible timbering, its contractibility joint are the overlapping joint for a long time always.The advantage of this overlapping joint is the support simple and convenient assembly; Shortcoming is: when the Tightening moment of card cable nut hour, the joint axial force of generation is lower, the stiffness of support deficiency; When pre-fastening moment is big, because the joint produces the relative changing of the relative positions up and down between U shaped steel, make the last lower plate of card cable also and then produce the relative changing of the relative positions, thereby make bolt be subjected to drawing the complex stress of cutting combination, finally cause the contractibility joint to refuse to contract, support produces harmful deformation instability and lost efficacy.
I once adopted 36U shaped steel to be assembled into collapsible prop, had carried out leg resistance mensuration on 500 tons of pressure testing machines of China Mining University's rock mechanics laboratory.Pliable support adopts the overlapping joint, adopts 5 board-like card cables of 36U double flute clevis, pre-fastening moment 450Nm.When leg resistance rises to 80 ton hours, joint is compressed about 60mm, promptly produces flexural deformation and unstability with back prop.Block cable bolt by pressurization before vertical this moment and become inclination, present the combination stressed state of being cut with tension with pillar.
Because the above-mentioned shortcoming of overlapping joint has had a strong impact on effective performance of U shaped steel collapsible timbering anti-pressure ability.
Three, utility model content
The purpose of this utility model is in order to address the above problem, but a kind of butt joint with double straps formula high resistant height reducer coupling head is provided.
The technical solution of the utility model is: but a kind of butt joint with double straps formula high resistant height reducer coupling head, the column and the upper beam that contain the U shape steel bracket, this joint also contains the clamping plate of two couplings up and down, the connection termination of described column and upper beam is clipped between two clamping plate simultaneously, form docking structure, the gap that certain-length is arranged between the termination of column and upper beam, the described edge of going up lower plate is provided with by bolt and connects.
The described two ends that goes up lower plate is provided with to install uses dowel hole, and the corresponding position that is connected the termination of described column and upper beam is provided with the installation dowel hole of coupling.
The described cross sectional shape coupling that goes up the cross sectional shape and the U shaped steel of lower plate.
Described bolt just is two.
The beneficial effects of the utility model
This docking structure is not fully exerted the mechanical property of material, but the butt joint with double straps formula reducer coupling head great advantage in the utility model is not refuse to contract, as long as clamping force is enough big, can obtain axial resistance near critical force, can bring into play the shape steel bracket anti-pressure ability to greatest extent.Butt joint with double straps formula joint is in theory applicable to any shaped steel, even can comprise steel pipe, is required clamping plate difference.
Four, description of drawings
But Fig. 1 faces structural representation for this butt joint with double straps formula high resistant height reducer coupling head
Fig. 2 be among Fig. 1 along pin bore axis to the sectional structure schematic diagram
Five, the specific embodiment
Embodiment one: referring to Fig. 1-Fig. 2, and 1. train wheel bridges among the figure, 2. bolt, 3. column connector, 4. upper beam connector, 5. lower plate, the 6. gap between the termination of column and upper beam, 7. dowel hole.
But a kind of butt joint with double straps formula high resistant height reducer coupling head among the figure, the column and the upper beam that contain the U shape steel bracket, this joint also contains the clamping plate of two couplings up and down, the connection termination of described column and upper beam is clipped between two clamping plate simultaneously, form docking structure, the gap that certain-length is arranged between the termination of column and upper beam, the described edge of going up lower plate is provided with by bolt and connects.
The described two ends that goes up lower plate is provided with to install uses dowel hole, and the corresponding position that is connected the termination of described column and upper beam is provided with the installation dowel hole of coupling.
The described cross sectional shape coupling that goes up the cross sectional shape and the U shaped steel of lower plate.
Inserting the fixed-site that will go up between lower plate and column and the upper beam in the pin-and-hole with pin earlier during installation gets off, to go up lower plate by bolt then clamps, can adjust the number of bolt according to the difference of the concrete occasion of using, to satisfy the requirement of dynamics, the carpenters square that contracts in the time of this joint work after the gap between the termination of column and upper beam is exactly pressure-bearing is very little.
Claims (4)
1. but butt joint with double straps formula high resistant height reducer coupling head, the column and the upper beam that contain the U shape steel bracket, it is characterized in that: this joint also contains the clamping plate of two couplings up and down, the connection termination of described column and upper beam is clipped between two clamping plate simultaneously, form docking structure, the gap that certain-length is arranged between the termination of column and upper beam, the described edge of going up lower plate is provided with by bolt and connects.
2. but butt joint with double straps formula high resistant height reducer coupling head according to claim 1, it is characterized in that: the described two ends that goes up lower plate is provided with to install uses dowel hole, and the corresponding position that is connected the termination of described column and upper beam is provided with the installation dowel hole of coupling.
3. but butt joint with double straps formula high resistant height reducer coupling head according to claim 1 is characterized in that: the described cross sectional shape coupling that goes up the cross sectional shape and the U shaped steel of lower plate.
4. but butt joint with double straps formula high resistant height reducer coupling head according to claim 1, it is characterized in that: described bolt just is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205350526U CN201778826U (en) | 2010-09-19 | 2010-09-19 | Double-splint butting type high-resistant high-compressible connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205350526U CN201778826U (en) | 2010-09-19 | 2010-09-19 | Double-splint butting type high-resistant high-compressible connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778826U true CN201778826U (en) | 2011-03-30 |
Family
ID=43792039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205350526U Expired - Fee Related CN201778826U (en) | 2010-09-19 | 2010-09-19 | Double-splint butting type high-resistant high-compressible connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373050A (en) * | 2014-11-04 | 2015-02-25 | 国民油井华高石油设备（上海）有限公司 | Horizontal splicing type overhead crane beam |
| CN107032052A (en) * | 2017-05-16 | 2017-08-11 | 常州市金坛区作物栽培技术指导站 | Over long distances without column rice seedling bed seedling disk conveyer |
-
2010
- 2010-09-19 CN CN2010205350526U patent/CN201778826U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373050A (en) * | 2014-11-04 | 2015-02-25 | 国民油井华高石油设备（上海）有限公司 | Horizontal splicing type overhead crane beam |
| CN107032052A (en) * | 2017-05-16 | 2017-08-11 | 常州市金坛区作物栽培技术指导站 | Over long distances without column rice seedling bed seedling disk conveyer |
| CN107032052B (en) * | 2017-05-16 | 2022-08-09 | 常州市金坛区作物栽培技术指导站 | Seedling tray conveyor for long-distance non-upright-column seedling bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20110919 |