CN214944362U - Roadway support anchor rope breakage safety protector - Google Patents
Roadway support anchor rope breakage safety protector Download PDFInfo
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- CN214944362U CN214944362U CN202121206312.XU CN202121206312U CN214944362U CN 214944362 U CN214944362 U CN 214944362U CN 202121206312 U CN202121206312 U CN 202121206312U CN 214944362 U CN214944362 U CN 214944362U
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Abstract
The utility model discloses a tunnel support anchor rope breakage safety protector, relating to the field of mine support; the safety protector is fixed at the lower end of the anchor cable, the lower end of the anchor cable is wrapped with a first buffer layer, and the lower end of the anchor cable is connected with the top wall of the roadway through a first spring inhaul cable; the lower end of the anchor cable is sleeved in the first elastic net, a spring is arranged at the bottom in the first elastic net, and the first elastic net is connected with the top wall of the roadway through a second spring inhaul cable; the first elastic net is sleeved in the second elastic net, a buffer block is arranged at the bottom in the second elastic net, a second buffer layer wraps the outside of the second elastic net, and the second elastic net is connected with the top wall of the roadway through a third spring inhaul cable; the utility model discloses the huge impulsive force that the uninstallation anchor rope that can be fine collapses absolutely and brings makes the degree of unexpected injury reduce to the minimum, and this device simple structure, convenient operation, but reuse.
Description
Technical Field
The utility model relates to a mine support technical field specifically is a tunnel support anchor rope bursts apart safety protection ware.
Background
The coal mine roadway engineering mainly adopts an anchor net cable support mode, and the anchor net cable support mainly comprises anchor cables, an anchorage device, a supporting plate, an anchoring agent and the like; the anchor cable is generally made of steel stranded wires with certain elasticity, and is characterized by high bearing capacity, capability of applying larger pretightening force and capability of obtaining more ideal supporting effect. After the anchor cable is stirred and anchored, an upper supporting plate and a lockset are sequentially installed to perform tensioning and pre-tightening work.
However, after the roadway is excavated, the stress distribution of the surrounding rock of the roadway is uneven and the local stress is concentrated under the influence of ground stress, tectonic stress and mining, and the anchor cable achieves larger prestress through stretching and pre-tightening during roadway supporting. Therefore, when a roadway has high impact pressure, the bearing capacity of the anchor cable reaches the self limit, and the anchor cable is prone to collapse. In the event of a breakout, the strong impact forces can cause the exposed portion of the cable bolt to have significant energy. Because the existing supporting plate does not have a structure and a function for discharging the energy, the broken anchor cable can be ejected out from the anchor cable hole on the supporting plate at a high speed, and the life safety is seriously threatened. At present, a plastic sleeve and a rubber sleeve are temporarily adopted in part of coal mines as a protection device to prevent the anchor cable from being broken and ejected, but the strength is obviously insufficient, so that the real safety protection effect cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a tunnel support anchor rope collapses disconnected safety protection ware to protect the anchor rope.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A roadway support anchor rope breakage safety protector is characterized in that an anchor rope is fixed on a roadway top wall from top to bottom through a supporting plate, an aligning ball pad and an anchorage device respectively, the safety protector is fixed at the lower end of the anchor rope, the lower end of the anchor rope exposed out of the roadway top wall is wrapped with a first buffer layer, and the lower end of the anchor rope is connected with the roadway top wall through a first spring inhaul cable; the lower end of the anchor cable is sleeved in a first elastic net, a spring is arranged at the bottom in the first elastic net, and the first elastic net is connected with the top wall of the roadway through a second spring inhaul cable; the first elastic net is sleeved in the second elastic net, a buffer block is arranged at the bottom in the second elastic net, a second buffer layer wraps the outside of the second elastic net, and the second elastic net is connected with the top wall of the roadway through a third spring inhaul cable.
Furthermore, the lower end of the anchor cable is connected with the top wall of the roadway through four symmetrical first spring inhaul cables.
Furthermore, the first elastic net is connected with the top wall of the roadway through four symmetrical second spring inhaul cables.
Furthermore, the second elastic net is connected with the top wall of the roadway through four symmetrical third spring inhaul cables.
Further, the first buffer layer and the second buffer layer are foam material layers.
Furthermore, the first elastic net and the second elastic net are formed by weaving high-elasticity fibers.
The utility model discloses produced beneficial effect for prior art does:
the utility model discloses a protection of multistage elastic construction, can rely on the supporting role of tunnel roof simultaneously to the multistage discharge of the impact force that the anchor rope that bursts apart produced, improve the holistic shock-absorbing capacity and the steadiness of safety protection ware; after the broken anchor cable is bound in the double-layer elastic net, the elastic net clamps the anchor cable inside, so that the broken anchor cable cannot fall to cause injury accidents; the first buffer layer and the second buffer layer located at the outermost part minimize damage.
The utility model discloses the huge impulsive force that the uninstallation anchor rope that can be fine collapses absolutely and brings makes the degree of unexpected injury reduce to the minimum, and this device simple structure, convenient operation, but reuse.
Drawings
Fig. 1 is a schematic structural diagram of the safety protector of the present invention.
In the figure, 1 is an anchor cable; 2 is a supporting plate; 3 is a self-aligning ball pad; 4 for the ground tackle, 5 is the tunnel roof, 6 is first buffer layer, 7 is first spring cable, 8 is first elasticity net, 9 is the spring, 10 is the second spring cable, 11 is second elasticity net, 12 is the buffer block, 13 is the second buffer layer, 14 is the third spring cable.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, is a roadway support anchor rope breakage safety protector, anchor rope 1 is fixed in tunnel roof 5 from last to down through layer board 2, aligning ball pad 3, ground tackle 4 respectively, and the safety protector is fixed at the lower extreme of anchor rope 1, and the concrete structure of safety protector is: the anchor cable is provided with a first-stage elastic force releasing structure, namely, the lower end of the anchor cable 1 exposed out of the roadway top wall is wrapped with a first buffer layer 6 made of a thermoplastic polyurethane elastomer, and the lower end of the anchor cable 1 is connected with the roadway top wall 5 through four first spring inhaul cables 7 which are symmetrically arranged.
The second-stage elastic force-releasing structure: the lower end of the anchor cable 1 is sleeved in a first elastic net 8 woven by high-elasticity polyethylene fibers, a spring 9 is arranged at the bottom in the first elastic net 8, and the first elastic net 8 is connected with the roadway top wall 5 through four symmetrically arranged second spring inhaul cables 10.
Third-level elastic force release structure: the first elastic net 8 is sleeved in a second elastic net 11 made of high-strength polyester yarn warp-knitted fabric, a buffer block 12 made of rubber is arranged at the bottom of the second elastic net 11, a second buffer layer 13 made of sponge is wrapped outside the second elastic net 11, and the second elastic net 11 is connected with the roadway top wall 5 through four third spring inhaul cables 14 which are symmetrically arranged.
The device can release the impact force generated by the broken anchor cable in multiple stages through the protection of the three-stage elastic structure, and simultaneously improves the overall buffer performance and stability of the safety protector by the supporting function of the roadway top wall 5; after the broken anchor cable is bound in the first elastic net 8 and the second elastic net 11, the anchor cable is clamped inside by the elastic nets, so that the anchor cable cannot fall to cause injury accidents; the first buffer layer 6 and the second buffer layer 13 located at the outermost portion minimize damage.
The huge impulsive force that the uninstallation anchor rope that this device can be fine bursts apart suddenly and brings makes the degree of unexpected injury reduce to the minimum, and this device simple structure, convenient operation, but reuse.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (6)
1. A roadway support anchor rope breakage safety protector is characterized in that the lower end of an anchor rope (1) exposed out of a roadway top wall is wrapped with a first buffer layer (6), and the lower end of the anchor rope (1) is connected with the roadway top wall (5) through a first spring inhaul cable (7); the lower end of the anchor cable (1) is sleeved in a first elastic net (8), a spring (9) is arranged at the bottom in the first elastic net (8), and the first elastic net (8) is connected with the roadway top wall (5) through a second spring inhaul cable (10); first elasticity net (8) cover is established in second elasticity net (11), bottom in second elasticity net (11) is provided with buffer block (12), the outside parcel of second elasticity net (11) has second buffer layer (13), second elasticity net (11) are connected with tunnel roof (5) through third spring cable (14).
2. The roadway support anchor rope breakage safety protector as claimed in claim 1, wherein the lower end of the anchor rope (1) is connected to the roadway roof (5) by four symmetrical first spring cables (7).
3. The roadway support anchor rope breakage safety guard as claimed in claim 1, wherein the first elastic net (8) is connected to the roadway roof wall (5) by four second symmetrical spring cables (10).
4. The roadway support cable breakage safety guard as claimed in claim 1, wherein the second elastic net (11) is connected to the roadway roof (5) by four third symmetrical spring cables (14).
5. The roadway support anchor rope breakage safety guard as claimed in claim 1, wherein the first buffer layer (6) and the second buffer layer (13) are foam material layers.
6. The roadway support anchor rope breakage safety guard as claimed in claim 1, wherein the first elastic net (8) and the second elastic net (11) are woven from high elastic fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121206312.XU CN214944362U (en) | 2021-06-01 | 2021-06-01 | Roadway support anchor rope breakage safety protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121206312.XU CN214944362U (en) | 2021-06-01 | 2021-06-01 | Roadway support anchor rope breakage safety protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214944362U true CN214944362U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121206312.XU Active CN214944362U (en) | 2021-06-01 | 2021-06-01 | Roadway support anchor rope breakage safety protector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335741A (en) * | 2023-03-31 | 2023-06-27 | 安徽理工大学 | An external reinforcing device for anchor cable end to prevent broken wire of anchor cable |
-
2021
- 2021-06-01 CN CN202121206312.XU patent/CN214944362U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335741A (en) * | 2023-03-31 | 2023-06-27 | 安徽理工大学 | An external reinforcing device for anchor cable end to prevent broken wire of anchor cable |
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