CN103174710B - Grille frame supporting-failure-resistant connector and use thereof - Google Patents
Grille frame supporting-failure-resistant connector and use thereof Download PDFInfo
- Publication number
- CN103174710B CN103174710B CN201310084012.2A CN201310084012A CN103174710B CN 103174710 B CN103174710 B CN 103174710B CN 201310084012 A CN201310084012 A CN 201310084012A CN 103174710 B CN103174710 B CN 103174710B
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- CN
- China
- Prior art keywords
- grille frame
- steel bar
- reinforcing bar
- hole
- diameter
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- 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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- Mutual Connection Of Rods And Tubes (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a grille frame supporting-failure-resistant connector and a use thereof. The grille frame supporting-failure-resistant connector is a metal piece provided with a wedge-shaped hole. The cross section of the wedge-shaped hole is in a long circle shape, and the vertical section of the wedge-shaped hole is in a right trapezoid shape. The slant angle of a bevel edge of the trapezoid is 1: (38-40), and the size of the upper bottom of the hole trapezoid is smaller than the diameter of a double grille frame steel bar and larger than the diameter of a haplotype grille frame steel bar. The width of a two-third-height position of the hole trapezoid is equal to the diameter of the double grille frame steel bar, so that the fact that the connector penetrates through a steel bar and then is inserted into the two-third-depth position of the other steel bar is guaranteed. When a grille frame is formed, an upper steel bar and a lower steel bar of the grille frame are connected in a head-to-head lap joint mode through two wedge-shaped connectors. When axial force born by the steel bars reaches a certain value, the movement of both the upper steel bar and the lower steel bar of the grille frame is limited and the grille frame is compelled to achieve yielding. Therefore, a roadway and a tunnel are guaranteed to be in a good state.
Description
Technical field
The present invention relates to the grille frame of the supporting of mine working and all kinds of tunnelling works, particularly relate to the technology preventing grille frame supporting to lose efficacy.
Background technique
Grille frame is one of support form of mine working and all kinds of tunnelling works.When using in down-hole, grille frame saves spacing grid type reinforced frame by one to connect to form, and overlapped by the steel bar end of correspondence and use link fastening during connection.So link is the critical piece of support.Because current connecting-piece structure limit, when pressure from surrounding rock or when being out of shape larger, support easily occurs that the de-stabilises such as flexing destroy, and causes stent failure, makes tunnel or tunnel be in dangerous state.Therefore, how preventing grille frame supporting to lose efficacy is the technical problem needing solution at present badly.
Summary of the invention
In order to the problem easily lost efficacy when overcoming grille frame supporting mine working and all kinds of tunnelling works, the invention provides a kind of grille frame supporting-failure-rconnector connector.
The present invention provides the purposes of this link simultaneously.
For achieving the above object, the technological scheme that the present invention takes is:
A kind of grille frame supporting-failure-rconnector connector, it is characterized in that, it is the metalwork being processed with wedge shape hole, the cross section of wedge shape hole is long-round-shape, longitudinal plane shape is a right-angled trapezium, the gradient of requirement trapezoidal hypotenuse is 1:(38-40), the trapezoidal water table opening of hole is less than the diameter of twice grille frame reinforcing bar and is greater than the diameter of one times of grille frame reinforcing bar, the width of trapezoidal 2/3 At The Height of hole equals the diameter of twice grille frame reinforcing bar, thus ensures that this link is only inserting 2/3 degree of depth through another root reinforcing bar after a reinforcing bar.
The using method of link of the present invention is as follows:
During connection for grille frame, two links are enclosed within the steel reinforcement abutting joints head of grille frame respectively, and make reinforcing bar only lean against the right angle side side of wedge shape hole, and the butt joint of reinforcing bar is exposed, ride out should be 2/3 of link height, and then the butt joint of both reinforcing bars is inserted in the hypotenuse side wedge shape hole of the other side respectively, be mutually seated, by two Wedge-shape connectors, the butt joint of grille frame overlapped.
Connect to form support with link of the present invention and method and have following good effect, the principle of the similar Morse's taper of face gradient of wedge shape hole, when the grille frame supporting mine working overlapped with link and all kinds of tunnelling works, when axial force suffered by grille frame reinforcing bar reaches certain value, due to the conical surface effect of wedge shape hole, two reinforcing bars up and down of support are moved and is all subject to a definite limitation, force grille frame to realize contracting dynamic, pressure from surrounding rock reduces, and avoids stent failure; In time being out of shape suitable, stop contracting dynamic, avoid support occur buckling failure and lost efficacy, ensure that tunnel or tunnel are in good state.Compared with other generic connectivity part, also there is the advantage that processing is simple, easy to assembly.
Accompanying drawing explanation
Fig. 1 is the plan view of Wedge-shape connector of the present invention;
Fig. 2 is the worm's eye view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is the using state figure of Wedge-shape connector of the present invention, and using state figure when grid arched girder is connected with grid supporting leg is only shown in figure.
Marginal data: 1-metalwork; 2-wedge shape hole, the upper steel reinforcement abutting joints head of 3-, steel reinforcement abutting joints head under 4-.
Embodiment
As Figure 1-3, grille frame supporting-failure-rconnector connector of the present invention, it is the metalwork 1 being processed with wedge shape hole 2; As can be seen from Figure 1, the cross section of wedge shape hole 2 is long-round-shape, longitudinal plane shape is a right-angled trapezium, the gradient of requirement trapezoidal hypotenuse is 1:(38-40), the trapezoidal water table opening of hole is less than the diameter of twice grille frame reinforcing bar and is greater than the diameter of one times of grille frame reinforcing bar, the width of trapezoidal 2/3 At The Height of hole equals the diameter of twice grille frame reinforcing bar, thus ensures that this link is only inserting 2/3 degree of depth through another root reinforcing bar after a reinforcing bar.
As shown in Figure 4, during connection for grille frame, on the upper steel reinforcement abutting joints head 3 two links being enclosed within respectively grille frame and lower steel reinforcement abutting joints head 4, and make reinforcing bar only lean against the right angle side side of wedge shape hole 2, and the butt joint of reinforcing bar is exposed, ride out should be 2/3 of link height, and then upper steel reinforcement abutting joints head 3 and lower steel reinforcement abutting joints head 4 are inserted in the hypotenuse side wedge shape hole 2 of the other side respectively, mutually be seated, by two Wedge-shape connectors, the upper steel reinforcement abutting joints head 3 of grille frame and lower steel reinforcement abutting joints head 4 overlapped.
Claims (2)
1. a grille frame supporting-failure-rconnector connector, it is characterized in that, it is the metalwork being processed with wedge shape hole, the cross section of wedge shape hole is long-round-shape, longitudinal plane shape is a right-angled trapezium, the gradient of requirement trapezoidal hypotenuse is 1:(38-40), the trapezoidal water table opening of hole is less than the diameter of twice grille frame reinforcing bar and is greater than the diameter of one times of grille frame reinforcing bar, the width of trapezoidal 2/3 At The Height of hole equals the diameter of twice grille frame reinforcing bar, thus ensures that this link is only inserting 2/3 degree of depth through another root reinforcing bar after a reinforcing bar.
2. the using method of a grille frame supporting-failure-rconnector connector as claimed in claim 1, it is characterized in that, when connecting grille frame, two links are enclosed within the steel reinforcement abutting joints head of grille frame respectively, and make reinforcing bar only lean against the right angle side side of wedge shape hole, and the butt joint of reinforcing bar is exposed, ride out should be 2/3 of link height, and then the butt joint of both reinforcing bars is inserted in the hypotenuse side wedge shape hole of the other side respectively, mutually be seated, by two links, the butt joint of grille frame overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084012.2A CN103174710B (en) | 2013-03-15 | 2013-03-15 | Grille frame supporting-failure-resistant connector and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084012.2A CN103174710B (en) | 2013-03-15 | 2013-03-15 | Grille frame supporting-failure-resistant connector and use thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174710A CN103174710A (en) | 2013-06-26 |
| CN103174710B true CN103174710B (en) | 2015-05-20 |
Family
ID=48634791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310084012.2A Expired - Fee Related CN103174710B (en) | 2013-03-15 | 2013-03-15 | Grille frame supporting-failure-resistant connector and use thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174710B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE830496C (en) * | 1950-07-16 | 1952-02-04 | Gutehoffnungshuette Oberhausen | Lock pocket for pit stamp |
| CN202111410U (en) * | 2011-03-07 | 2012-01-11 | 王海斌 | Lead abutting and fixing device for high tension transmission line |
| CN102434180A (en) * | 2011-11-18 | 2012-05-02 | 山东科技大学 | Continuous resistance-increasing deforming anchor rod |
| CN202611730U (en) * | 2012-06-12 | 2012-12-19 | 薄维仑 | Detachable lock plate |
| CN203189047U (en) * | 2013-03-15 | 2013-09-11 | 山东科技大学 | Wedge-shaped connecting piece for contractible grid support |
-
2013
- 2013-03-15 CN CN201310084012.2A patent/CN103174710B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE830496C (en) * | 1950-07-16 | 1952-02-04 | Gutehoffnungshuette Oberhausen | Lock pocket for pit stamp |
| CN202111410U (en) * | 2011-03-07 | 2012-01-11 | 王海斌 | Lead abutting and fixing device for high tension transmission line |
| CN102434180A (en) * | 2011-11-18 | 2012-05-02 | 山东科技大学 | Continuous resistance-increasing deforming anchor rod |
| CN202611730U (en) * | 2012-06-12 | 2012-12-19 | 薄维仑 | Detachable lock plate |
| CN203189047U (en) * | 2013-03-15 | 2013-09-11 | 山东科技大学 | Wedge-shaped connecting piece for contractible grid support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103174710A (en) | 2013-06-26 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20160315 |