CN2723680Y - Safety support anchor rod with screw - Google Patents
Safety support anchor rod with screw Download PDFInfo
- Publication number
- CN2723680Y CN2723680Y CN 200320125055 CN200320125055U CN2723680Y CN 2723680 Y CN2723680 Y CN 2723680Y CN 200320125055 CN200320125055 CN 200320125055 CN 200320125055 U CN200320125055 U CN 200320125055U CN 2723680 Y CN2723680 Y CN 2723680Y
- Authority
- CN
- China
- Prior art keywords
- nut
- rod
- safety support
- support anchor
- screw
- 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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- Piles And Underground Anchors (AREA)
Abstract
The safety support anchor rod with screw of the utility model relates to a safety support device used for mines, in particular to a support anchor rod fixed on the top or the well wall of mines. The safety support anchor rod with screw is composed of a rod body (1) with a tine on the top, a tray (2) which is sheathed on the rod body (1) and can move up and down along the rod body (1) and a nut which can (3) match with a driving device; The safety support anchor rod with screw is characterized in that the external surface of the rod body (1) on the upper part is a rough surface (1-1); the lower part of the rod body (1) is provided with an external screw (1-2) matching with the nut (3); the lower part of the internal screw hole (3-1) of the nut (3) is also provided with a top sheet (4); the periphery of the top sheet (4) is connected with the nut (3) into a whole; the tray (2) is arranged above the nut (3). The utility model solves the problems of complicated structure, inconvenient installation, low intensity, long operation time and low efficiency existing in like products; the utility model can be used for the support of an underground coal mine, and can also be used for other construction engineerings not adopting a steel anchor rod.
Description
(1) technical field
The utility model relates to a kind of safety support device that is used for mine, the particularly a kind of top of mine or supporting anchor pole of the borehole wall of being fixed on.
(2) background technology
At present the safety support device of mine has the support anchor rod of steel, wood, bamboo etc., and now the most frequently used is the anchor pole that hydraulic prop adds steel, adopts this anchor pole to have complex structure, inconvenience is installed, intensity is low, the activity duration is long, inefficient shortcoming.
(3) utility model content
[problem that will solve]
For solving the problem that prior art exists, the utility model provides a kind of screwed safety support anchor pole.It has solved complex structure that existing like product exists, inconvenience is installed, intensity is low, the activity duration is long, inefficient problem.
[technical scheme]
Screwed safety support anchor pole of the present utility model by the slightly pointed body of rod 1 in top, be sleeved on the body of rod 1 and the pallet 2 that can move up and down along the body of rod 1 and the nut 3 that can match with transmission device are formed, the external surface on the body of rod 1 top is rough surface 1-1, the external screw thread 1-2 that matches with nut 3 is arranged at the bottom of the body of rod 1, the lower end of the internal thread hole 3-1 of nut 3 also is provided with top flat 4, the periphery of top flat 4 and nut 3 are linked to be and are structure as a whole, and pallet 2 is positioned at the top of nut 3.When mounted, at first according to the standard of anchoring agent manufacturer, make a call to a hole at the top of the borehole wall or mine, the degree of depth reaches rock-bolt length.The hole is put in the anchoring agent, again the tip of the body of rod 1 is passed the fixedly plate of mine, inserted then and put well in the hole of anchoring agent, block nut 3 with jumbolter again, and drive anchor pole rotation, and promote the body of rod 1 and in the anchoring agent, insert, smash the anchoring agent capsules this moment, and the rough surface on the body of rod fully mixes the anchoring agent, anticipate and requirement according to seeing of anchoring agent manufacturer in the rotation back, anchor pole is kept certain hour, solidify, the anchoring agent is mixed attached to anchor pole and hole wall surface up to the anchoring agent.Add high pulling torque, the body of rod 1 pushes up the top flat 4 of nut 3 internal thread hole 3-1 lower ends to coming off, and nut 3 promotes pallets 2 and is moved upwards up to the appropriate location, continues fastening nut pallet is closely contacted with borehole wall surface.The described body of rod 1 is to be made by galss fiber reinforced resin, and the screw thread of the body of rod 1 bottom is that high-strength engineering plastic is made.
[beneficial effect]
Screwed safety support anchor pole of the present utility model has following advantage: light weight, simple in structure, easy for installation, when installing working strength of workers low, can improve the benefit of installation exercise progress and production; Ageing-resistant, corrosion-resistant, acid and alkali-resistance; Can protect digger not to be damaged, to improve activity duration and economic benefit; Mechanical performance is good, tension, every index such as anti-shearing all are better than standard; When producing,, prevent gas explosion because therefore no metal parts does not produce the collision spark; Described pallet 2 is to be used for carrying, and the rest effect is played at the top of mine wall or mine, can increase lifting surface area; Top flat 4 comes off automatically after the precalculated position owing to move at the body of rod, so nut 3 can promote pallet and move upward, and makes it closely to contact with the parts at the top of rest mine wall or mine, therefore also has the reliable advantage of installation.Because this product has burning at a slow speed, needn't separate with coal after the digging; Again because this product colour is obvious, thereby see easily in the down-hole.
Screwed safety support anchor pole of the present utility model is mainly used in the supporting of underground coal mine, also can be used for the place that other construction work is difficult for adopting easy-to-use steel anchor rod supporting.Its body of rod diameter can be 15-25mm, and length can be 600-2800mm.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the A-A sectional view of Fig. 1,
Fig. 3 is the I place partial enlarged drawing of Fig. 1.
(5) specific embodiment
The present invention will be described in detail below in conjunction with accompanying drawing:
Consult Fig. 1, Fig. 2 and Fig. 3, this screwed safety support anchor pole is made up of the body of rod 1, pallet 2 and nut 3.Point is arranged at the top of the body of rod 1, and the external surface on the body of rod 1 top is rough surface 1-1, and the maximum height difference H at the concavo-convex position of rough surface 1-1 is 1.0mm.Rough surface 1-1 can make the anchoring agent mix when the body of rod rotates, and can make the body of rod and anchoring agent bonding again firmly.The external screw thread 1-2 that matches with nut 3 is arranged at the bottom of the body of rod 1.The internal thread hole 3-1 of nut 3 matches with external screw thread 1-2, the lower end of the internal thread hole 3-1 of nut 3 also is provided with top flat 4, the periphery of top flat 4 and nut 3 are linked to be and are structure as a whole, protruding 4-1 is arranged above the top flat 4, when the body of rod 1 inserted extreme position, the body of rod 1 can push up top flat 4 to coming off under certain moment of torsion by protruding 4-1.The bottom 3-2 of the external surface of nut 3 is hexagon or the four prism types that match with transmission device, and transmission device is matched with nut, and drives the nut rotation.Pallet 2 is a disc, and pallet 2 is set on the body of rod 1 and is positioned at the top of nut 3.The described body of rod 1 is to be made by galss fiber reinforced resin, and the screw thread of the bottom of the body of rod 1 is that high-strength engineering plastic is made.
Claims (4)
1. screwed safety support anchor pole, it by the slightly pointed body of rod in top (1), be sleeved on that the body of rod (1) is gone up and the pallet (2) that can move up and down along the body of rod (1) and the nut (3) that can match with transmission device are formed, the external surface that it is characterized in that the body of rod (1) top is rough surface (1-1), the external screw thread (1-2) that matches with nut (3) is arranged at the bottom of the body of rod (1), the lower end of the internal thread hole (3-1) of nut (3) also is provided with top flat (4), the periphery of top flat (4) and nut (3) are linked to be and are structure as a whole, and pallet (2) is positioned at the top of nut (3).
2. screwed safety support anchor pole according to claim 1 is characterized in that the maximum height difference H at the concavo-convex position of rough surface (1-1) is 1.0mm.
3. screwed safety support anchor pole according to claim 1 and 2 is characterized in that projection (4-1) is arranged above the top flat (4).
4. screwed safety support anchor pole according to claim 1 and 2, the bottom (3-2) that it is characterized in that the external surface of nut (3) is hexagon or the four prism type that matches with transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125055 CN2723680Y (en) | 2003-12-03 | 2003-12-03 | Safety support anchor rod with screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125055 CN2723680Y (en) | 2003-12-03 | 2003-12-03 | Safety support anchor rod with screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723680Y true CN2723680Y (en) | 2005-09-07 |
Family
ID=35037309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320125055 Expired - Fee Related CN2723680Y (en) | 2003-12-03 | 2003-12-03 | Safety support anchor rod with screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723680Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849084B (en) * | 2007-11-09 | 2013-03-06 | 伊利诺斯工具制品有限公司 | Powder-actuated mechanical lock concrete anchor |
-
2003
- 2003-12-03 CN CN 200320125055 patent/CN2723680Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849084B (en) * | 2007-11-09 | 2013-03-06 | 伊利诺斯工具制品有限公司 | Powder-actuated mechanical lock concrete anchor |
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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: 20050907 Termination date: 20100104 |