CN103174710A - Grille frame supporting-failure-resistant connector and use thereof - Google Patents
Grille frame supporting-failure-resistant connector and use thereof Download PDFInfo
- Publication number
- CN103174710A CN103174710A CN2013100840122A CN201310084012A CN103174710A CN 103174710 A CN103174710 A CN 103174710A CN 2013100840122 A CN2013100840122 A CN 2013100840122A CN 201310084012 A CN201310084012 A CN 201310084012A CN 103174710 A CN103174710 A CN 103174710A
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- grille frame
- steel bar
- hole
- reinforcing bar
- diameter
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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 that the supporting of mine working and all kinds of tunnelling works is used, relate in particular to the technology that prevents that the grille frame supporting was lost efficacy.
Background technique
Grille frame is one of support form of mine working and all kinds of tunnelling works.When using in the down-hole, grille frame is to save the spacing grid type reinforced frame by one to connect to form, and the steel bar end with correspondence during connection overlaps and use link fastening.So link is the critical piece of support.Because present connecting-piece structure is limit, when pressure from surrounding rock or distortion when larger, the de-stabilise such as flexing easily appears in support to be destroyed, and causes stent failure, makes tunnel or tunnel be in dangerous state.Therefore, how to prevent that it is the technical problem of needing at present solution badly that the grille frame supporting was lost efficacy.
Summary of the invention
The problem that easily lost efficacy when overcoming grille frame supporting mine working and all kinds of tunnelling works the invention provides the anti-supporting inefficacy link of a kind of grille frame.
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 is prevented supporting inefficacy link, it is characterized in that, it is the metalwork that is processed with the wedge shape hole, the cross section of wedge shape hole is long-round-shape, longitudinal plane is shaped as a right-angled trapezium, requiring the gradient of 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 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, thereby guarantees that this link another root reinforcing bar after passing a reinforcing bar only inserts 2/3 degree of depth.
The using method of link of the present invention is as follows:
When being used for the connection of grille frame, two links are enclosed within respectively on the steel reinforcement abutting joints head of grille frame, and make reinforcing bar only lean against right angle side one side in wedged hole 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 respectively in the other side's hypotenuse one side wedge shape hole, mutually be seated, overlap by the butt joint of two Wedge-shape connectors with grille frame.
Connect to form support with link of the present invention and method following good effect is arranged, the principle of the similar Morse's taper of face gradient of wedge shape hole, when the grille frame supporting mine working that overlaps with link and all kinds of tunnelling works, when the suffered axial force of 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 all be subject to certain limitation, force grille frame to realize that contracting is moving, pressure from surrounding rock reduces, and avoids stent failure; Stop contracting moving when distortion is suitable, avoid support buckling failure to occur and lost efficacy, guarantee that tunnel or tunnel are in good state.Compare with other generic connectivity spare, have advantages of that also processing is simple, easy to assembly.
Description of drawings
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 use phase diagram of Wedge-shape connector of the present invention, the use phase diagram when the grid arched girder only being shown in figure being connected with the grid supporting leg.
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 of the present invention is prevented supporting inefficacy link, and it is the metalwork 1 that is 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 is shaped as a right-angled trapezium, requiring the gradient of 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 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, thereby guarantees that this link another root reinforcing bar after passing a reinforcing bar only inserts 2/3 degree of depth.
As shown in Figure 4, when being used for the connection of grille frame, two links are enclosed within respectively on the upper steel reinforcement abutting joints head 3 and lower steel reinforcement abutting joints head 4 of grille frame, and make reinforcing bar only lean against right angle side one side in wedged hole 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 respectively in the other side's hypotenuse one side wedge shape hole 2, mutually be seated, overlap by upper steel reinforcement abutting joints head 3 and the lower steel reinforcement abutting joints head 4 of two Wedge-shape connectors with grille frame.
Claims (2)
1. a grille frame is prevented supporting inefficacy link, it is characterized in that, it is the metalwork that is processed with the wedge shape hole, the cross section of wedge shape hole is long-round-shape, longitudinal plane is shaped as a right-angled trapezium, requiring the gradient of 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 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, thereby guarantees that this link another root reinforcing bar after passing a reinforcing bar only inserts 2/3 degree of depth.
2. the using method of the anti-supporting inefficacy link of a grille frame as claimed in claim 1, it is characterized in that, when connecting grille frame, two links are enclosed within respectively on the steel reinforcement abutting joints head of grille frame, and make reinforcing bar only lean against right angle side one side in wedged hole 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 respectively in the other side's hypotenuse one side wedge shape hole, mutually be seated, overlap by the butt joint of two links with grille frame.
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 true CN103174710A (en) | 2013-06-26 |
| CN103174710B 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 |
|---|---|
| CN103174710B (en) | 2015-05-20 |
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Granted publication date: 20150520 Termination date: 20160315 |