CN210343379U - Perforation protection device for tunnel arch frame connecting steel plate - Google Patents
Perforation protection device for tunnel arch frame connecting steel plate Download PDFInfo
- Publication number
- CN210343379U CN210343379U CN201921312899.5U CN201921312899U CN210343379U CN 210343379 U CN210343379 U CN 210343379U CN 201921312899 U CN201921312899 U CN 201921312899U CN 210343379 U CN210343379 U CN 210343379U
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- China
- Prior art keywords
- bolt
- bolt hole
- seat body
- steel plate
- protection seat
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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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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a perforation protection device for a tunnel arch center connecting steel plate, which comprises a protection seat body, wherein the middle part of the protection seat body is provided with a T-shaped groove; a fixing mechanism is arranged at the upper part of the first bolt hole, the first bolt hole is arranged at the top of the T-shaped groove, and a second bolt hole and a third bolt hole are respectively formed in two sides of the wall of the protection seat body where the bottom of the T-shaped groove is located; the second bolt hole is provided with a second bolt in a penetrating mode, the third bolt hole is provided with a third bolt in a penetrating mode, and the third bolt hole is matched with the inner thread of the second bolt. This device is because bow member linking steel sheet agrees with each other with the protection seat body, and the convenient use that removes at any time to but reuse avoids the connecting hole of bow member linking steel sheet to be sprayed concrete shutoff, has reduced the process that artifical chisel led to, has guaranteed the construction progress.
Description
Technical Field
The utility model belongs to the technical field of the tunnel construction, concretely relates to perforation protection device of tunnel bow member connecting plate.
Background
A building construction method commonly used in the tunnel construction process is a new engineering construction method formed by adopting a system formed by a spray anchor technology, monitoring and measuring and the like and a rock mechanics theory.
In the tunnel construction process, the rock wall body after being opened is often required to be supported, the arch center connecting steel plates are generally assembled with each other, and an arch-shaped construction area is formed by installing protective nets and spraying concrete, so that the construction area where the rock wall body is located is prevented from being affected by local collapse of rock bodies. However, when concrete spraying is performed, since there are non-through connection holes between adjacent arch connecting steel plates, and the non-through connection holes are blocked by sprayed concrete, installation of the arch connecting steel plates in the next operation is seriously affected, and manhole chiseling conduction cleaning is required. However, manual chiseling is labor-consuming and time-consuming, and the connecting steel plate is damaged due to improper operation of constructors in the chiseling process.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a perforation protection device of tunnel bow member linking steel plate has solved among the prior art bow member linking steel plate when the installation, and the bolt hole is easily by the concrete cover problem of injection.
The purpose of the utility model can be realized by the following technical scheme:
a perforation protection device for a tunnel arch center connecting steel plate comprises a protection seat body, wherein a T-shaped groove is formed in the middle of the protection seat body, a first bolt hole is formed in the top of the T-shaped groove, and a second bolt hole and a third bolt hole are formed in two sides of the wall of the protection seat body where the bottom of the T-shaped groove is located respectively;
a second bolt penetrates through the second bolt hole, the second bolt comprises a second bolt column, the second bolt column is of a cylindrical structure, an external thread and an internal thread are respectively arranged on the outer wall and the inner wall of the second bolt column, and the external thread of the second bolt column is matched with the second bolt; a third bolt penetrates through the third bolt hole, and the third bolt hole is matched with the internal thread of the second bolt column;
and a fixing mechanism is arranged at the upper part of the first bolt hole.
Further, fixed establishment includes first screw thread post to and the fixed plate that links to each other with first screw thread post, first screw thread post connection is in on the first bolt hole of protection seat body and stretch out outwards, the fixed plate sets up in the T type groove of protection seat body.
Furthermore, a notch is formed in the circumferential direction of the front end of the column wall of the second bolt where the second bolt is located.
Furthermore, the T-shaped groove of the protection seat body is matched with the bottom of the arch connecting steel plate, and the second bolt hole, the third bolt hole and the connecting hole in the arch connecting steel plate are concentrically arranged.
The utility model has the advantages that:
1. this device is through the slip of protection seat body at the bow member connecting plate to realize locking operation through fixed establishment, carry out the whitewashing operation afterwards, the protection seat body covers in the connecting hole position, can protect the bow member connecting plate not blockked up by shotcrete, and after shotcrete was accomplished, take out second bolt and third bolt again, can realize the normal use of connecting hole.
2. This device is through mutually supporting of second bolt and third bolt, convenient dismantlement to but the adaptation uses under multiple different environment, reduces the manual work and chisels the process that switches on.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic front structural view of an embodiment of the present invention;
fig. 3 is a schematic structural view of a protection seat body according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a second bolt according to an embodiment of the present invention;
fig. 5 is a schematic view of a usage status of the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-5, the utility model provides a perforation protection device of tunnel bow member linking steel plate, including protection seat body 1, T type groove 101 is seted up at the middle part of protection seat body 1, and the top of T type groove 101 is provided with first bolt hole 102, and second bolt hole 103 and third bolt hole 104 are seted up respectively to protection seat body 1 wall both sides at T type groove 101 bottom place.
The upper part of the first bolt hole 102 is provided with a fixing mechanism 2; the fixing mechanism 2 comprises a first threaded column 21 and a fixing plate 22 connected with the first threaded column 21, the first threaded column 21 is connected to the first bolt hole 102 of the protective seat body 1 and extends outwards, and the fixing plate 22 is arranged in the T-shaped groove 101 of the protective seat body 1.
A second bolt 3 is arranged in the second bolt hole 103 in a penetrating manner, the second bolt 3 comprises a second bolt column 31, the second bolt column 31 is of a cylindrical structure, an external thread and an internal thread are respectively arranged on the outer wall and the inner wall of the second bolt column 31, and the external thread of the second bolt column 31 is matched with and connected with the second bolt 3 in a penetrating manner; the third bolt hole 104 is provided with a third bolt 4 in a penetrating manner, the third bolt 4 is matched with the internal thread of the second bolt column 31, and when the third bolt 4 is matched with the internal thread of the second bolt column 31, the third bolt 4 is screwed, so that the front end of the third bolt 4 is contacted with the front end of the second bolt 3 and is screwed, and the locking effect is achieved; a notch 32 is arranged at the front end of the wall of the second bolt column 31 where the second bolt 3 is arranged in the circumferential direction.
During the use, T type groove 101 of protection seat body 1 and the bottom adaptation of bow member linking plate 4 to along bow member linking plate 5 bottom arcwall face removal, and second bolt hole 103, third bolt hole 104 and the connecting hole 501 on the bow member linking plate 5 are the concentric setting. When the second bolt hole 103 and the third bolt hole 104 are concentric with the connecting hole 501, the first threaded column 21 of the fixing mechanism 2 is screwed, so that the fixing plate 22 and the arch connecting steel plate 4 are fixed and clamped, then the second bolt 3 and the third bolt 4 are respectively connected to two ends of the second bolt hole 103 and the third bolt hole 104, at the moment, the second bolt 3 and the third bolt 4 plug the connecting hole 501 completely, then the guniting operation is carried out, the arch connecting plate can be protected from being plugged by sprayed concrete, after the guniting is completed, the second bolt 3 and the third bolt 4 are taken out again, and the normal use of the connecting hole 501 can be realized.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (4)
1. A perforation protection device for a tunnel arch center connecting steel plate comprises a protection seat body (1), and is characterized in that a T-shaped groove (101) is formed in the middle of the protection seat body (1), a first bolt hole (102) is formed in the top of the T-shaped groove (101), and a second bolt hole (103) and a third bolt hole (104) are formed in two sides of the wall of the protection seat body (1) where the bottom of the T-shaped groove (101) is located respectively;
a second bolt (3) penetrates through the second bolt hole (103), the second bolt (3) comprises a second bolt column (31), the second bolt column (31) is of a cylindrical structure, an external thread and an internal thread are respectively arranged on the outer wall and the inner wall of the second bolt column (31), and the external thread of the second bolt column (31) is matched with the second bolt (3); the third bolt (4) penetrates through the third bolt (4), and a third bolt hole (104) is matched with the internal thread of the second bolt column (31);
and a fixing mechanism (2) is arranged at the upper part of the first bolt hole (102).
2. A tunnel arch connecting steel plate perforation protector according to claim 1, characterized in that, the fixing mechanism (2) comprises a first threaded column (21), and a fixing plate (22) connected with the first threaded column (21), the first threaded column (21) is connected with the first bolt hole (102) of the protection seat body (1) and extends outwards, the fixing plate (22) is arranged in the T-shaped groove (101) of the protection seat body (1).
3. A tunnel arch connecting steel plate perforation protector according to claim 1, characterized in that the front end of the wall of the second bolt column (31) where the second bolt (3) is located is provided with a notch (32) in the circumferential direction.
4. The perforation protection device for the connecting steel plate of the tunnel arch according to claim 1, characterized in that the T-shaped groove (101) of the protection seat body (1) is matched with the bottom of the connecting steel plate (5) of the arch, and the second bolt hole (103) and the third bolt hole (104) are concentrically arranged with the connecting hole (501) on the connecting steel plate (5) of the arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921312899.5U CN210343379U (en) | 2019-08-14 | 2019-08-14 | Perforation protection device for tunnel arch frame connecting steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921312899.5U CN210343379U (en) | 2019-08-14 | 2019-08-14 | Perforation protection device for tunnel arch frame connecting steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343379U true CN210343379U (en) | 2020-04-17 |
Family
ID=70174800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921312899.5U Expired - Fee Related CN210343379U (en) | 2019-08-14 | 2019-08-14 | Perforation protection device for tunnel arch frame connecting steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343379U (en) |
-
2019
- 2019-08-14 CN CN201921312899.5U patent/CN210343379U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |