CN212642756U - Multiple locking structure of weak surrounding rock tunnel preliminary bracing shaped steel support - Google Patents
Multiple locking structure of weak surrounding rock tunnel preliminary bracing shaped steel support Download PDFInfo
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- CN212642756U CN212642756U CN202021257568.9U CN202021257568U CN212642756U CN 212642756 U CN212642756 U CN 212642756U CN 202021257568 U CN202021257568 U CN 202021257568U CN 212642756 U CN212642756 U CN 212642756U
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- gear
- locking bolt
- mounting groove
- surrounding rock
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Abstract
The utility model discloses a multiple locking structure of a primary support section steel bracket of a weak surrounding rock tunnel, which comprises a steel bracket, bases are respectively arranged at the bottoms of the two ends of the steel bracket, fixing grooves matched with the bottom end of the steel bracket are respectively arranged on the bases, locking bolts I are respectively arranged on the sides of the bases close to each other in a penetrating way, one ends of the locking bolts, which are far away from each other, penetrate through the steel bracket, a first mounting groove is formed in the base and positioned below the fixing groove, a locking bolt II is arranged in the mounting groove I, a thread sleeve I matched with the locking bolt II is sleeved on the outer side of the locking bolt II, and the outer side edge of the first threaded sleeve is annularly provided with a tooth groove, the bottom of the first threaded sleeve is provided with a first gear matched with the tooth groove, and one side edge of the first gear is provided with a first connecting rod.
Description
Technical Field
The utility model relates to a tunnel construction technical field particularly, relates to a weak surrounding rock tunnel preliminary bracing shaped steel support multiple locking structure.
Background
The tunnel engineering is a series of construction work carried out in the process of constructing underground, underwater, mountain laying railways and constructing highways, and is mainly divided into tunnel planning, surveying, designing, through control measurement and construction work; when tunnel construction is carried out, supporting operation needs to be carried out on weak surrounding rocks; when the weak surrounding rock tunnel preliminary bracing is carried out at present, carry out the locking of unicity to the steel support more and fix, influence the stability of steel support to lead to the unable better operation of strutting to weak surrounding rock tunnel, and then unable better user demand who satisfies people.
In conclusion, how to perform multiple locking on the weak surrounding rock tunnel support frame is a technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The technical task of the utility model is to above not enough, provide a weak surrounding rock tunnel preliminary bracing shaped steel support multiple locking structure, solve how can carry out the problem of multiple locking to weak surrounding rock tunnel support.
The technical scheme of the utility model is realized like this:
a multiple locking structure of a primary support type steel support of a weak surrounding rock tunnel comprises a steel support, wherein bases are mounted at the bottoms of two ends of the steel support, fixing grooves matched with the bottom end of the steel support are formed in the bases, a first locking bolt penetrates through one side edge, close to each other, of the bases, one end, far away from each other, of the first locking bolt penetrates through the steel support, a first mounting groove is formed in the base and located below the fixing grooves, a second locking bolt is mounted in the first mounting groove, a first threaded sleeve matched with the first locking bolt is sleeved on the outer side of the second locking bolt, a tooth groove is formed in the outer side edge ring of the first threaded sleeve, a first gear matched with the tooth groove is mounted at the bottom of the first threaded sleeve, a first connecting rod is mounted on one side edge of the first gear, and a groove is formed in the bottom end of one side edge, close to each other, of the bases, a concave hexagonal rotating block I is arranged in each groove, one end, far away from the gear I, of each connecting rod I is connected with the concave hexagonal rotating block I, a mounting groove II is formed in the top end of the steel support, two ends of the mounting groove II extend to two side edges of the top end of the steel support, a gear II is arranged in the mounting groove II, a gear III and a gear IV are respectively arranged at the top end of one side edge and the bottom end of the other side edge of the gear II, a thread sleeve II is arranged at one side edge, far away from the gear II, of the gear III and the gear IV, a locking bolt III matched with the thread sleeve II is arranged in the thread sleeve II, one end, far away from each other, of the locking bolt III extends to two ends of the mounting groove II, a connecting rod II is arranged at the bottom of the gear II, and a concave block is arranged in the middle of the inner side of the top end of the, and a concave hexagonal rotating block II is arranged in the concave block, and the bottom end of the connecting rod II is fixedly connected with the top of the concave hexagonal rotating block II.
Preferably, the inner walls of the groove and the concave block are provided with movable clamping grooves in a surrounding manner, and movable clamping blocks matched with the movable clamping grooves are symmetrically arranged at positions, corresponding to the movable clamping grooves, on the first concave hexagonal rotating block and the second concave hexagonal rotating block.
Preferably, limit stops are mounted at one ends, close to the inner portion of the mounting grooves, of the locking bolts.
Preferably, the base is internally provided with a third mounting groove which is communicated with the first mounting groove and is positioned at one side, away from the first locking bolt, of the steel support, the movable block is arranged at the bottom end of the third mounting groove, a thread groove matched with the second locking bolt is formed in the bottom of the movable block, and a through hole matched with the movable block is formed in one end, away from the movable block, of the second locking bolt.
Preferably, a movable telescopic rod is installed at the top of the movable block, a spring is annularly arranged inside the third installation groove and outside the movable telescopic rod, and the bottom of the spring is fixedly connected with the top of the movable block.
Preferably, the top end of the movable telescopic rod extends to the top of the base, and a pull ring is mounted at the top of the movable telescopic rod.
Preferably, the bottom plate is installed at the bottom of the base, and the locking bolts penetrate through the side, close to each other, of the bottom plate.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
1. through locking bolt one can be right steel support carries out one and heavily locks, through concave type hexagonal turning block one with locking bolt two can be right steel support carries out two locks, through concave type hexagonal turning block two with locking bolt three can be right steel support carries out three locks, thereby can make steel support can reach better stability, is convenient for can be better strut the operation, and then be convenient for can be better satisfy people's user demand.
2. Through the utility model discloses fine solution how can carry out the problem of multiple locking to weak surrounding rock tunnel support for when carrying out weak surrounding rock tunnel preliminary bracing, can carry out multiple locking to the steel support and fix, ensured the stability of steel support, thereby be convenient for can be better strut the operation to weak surrounding rock tunnel, and then be convenient for can be better satisfy people's user demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of a base according to an embodiment of the present invention;
fig. 3 is a schematic side view of two portions of a locking bolt according to an embodiment of the present invention;
fig. 4 is a schematic view of the internal structure of the mounting groove two according to the embodiment of the present invention.
In the figure:
1. a steel bracket; 2. a base; 3. fixing grooves; 4. locking the first bolt; 5. a first mounting groove; 6. locking a second bolt; 7. sleeving a first thread; 8. a tooth socket; 9. a first gear; 10. a first connecting rod; 11. a groove; 12. a first concave hexagonal rotating block; 13. a second mounting groove; 14. a second gear; 15. a third gear; 16. a fourth gear; 17. a second thread sleeve; 18. locking a bolt III; 19. a second connecting rod; 20. a concave block; 21. a concave hexagonal rotating block II; 22. a limit stop block; 23. a third mounting groove; 24. a movable block; 25. a through hole; 26. a movable telescopic rod; 27. a spring; 28. a pull ring; 29. a base plate; 30. and locking the bolt.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The invention will be further explained with reference to the drawings and the specific embodiments.
Embodiment one, as shown in fig. 1 to 4, according to the embodiment of the present invention, a multiple locking structure of a weak surrounding rock tunnel preliminary bracing type steel support comprises a steel support 1, bases 2 are installed at bottoms of both ends of the steel support 1, fixing grooves 3 adapted to a bottom end of the steel support 1 are formed on the bases 2, a first locking bolt 4 is installed through one side of the bases 2 close to each other, one end of the first locking bolt 4 away from each other is installed through the steel support 1, a first mounting groove 5 is formed inside the base 2 and below the fixing grooves 3, a second locking bolt 6 is installed inside the first mounting groove 5, a first thread sleeve 7 adapted to the second locking bolt 6 is sleeved outside the second locking bolt 6, and a tooth groove 8 is formed around an outside edge of the first thread sleeve 7, a first gear 9 matched with the tooth socket 8 is installed at the bottom of the first thread bushing 7, a first connecting rod 10 is installed at one side of the first gear 9, a groove 11 is formed in the bottom end of one side of the base 2 close to the first gear, a first concave hexagonal rotating block 12 is installed inside the groove 11, one end, far away from the first gear 9, of the first connecting rod 10 is connected with the first concave hexagonal rotating block 12, a second mounting groove 13 is formed in the top end of the steel support 1, two ends of the second mounting groove 13 extend to two sides of the top end of the steel support 1, a second gear 14 is installed inside the second mounting groove 13, a third gear 15 and a fourth gear 16 are installed at the top end of one side of the second gear 14 and the bottom end of the other side of the second gear 14 respectively, and a second thread bushing 17 is installed at one side of the third gear 15 and the fourth gear 16 far away from the second gear 14, and the inside of the second thread bush 17 is provided with a third locking bolt 18 matched with the second thread bush 17, one end of the third locking bolt 18, which is far away from each other, extends to the two ends of the second mounting groove 13, the bottom of the second gear 14 is provided with a second connecting rod 19, the middle part of the inner side of the top end of the steel support 1 is provided with a concave block 20, the inside of the concave block 20 is provided with a second concave hexagonal rotating block 21, the bottom end of the second connecting rod 19 is fixedly connected with the top of the second concave hexagonal rotating block 21, the steel support 1 can be locked once through the first locking bolt 4, the steel support 1 can be locked twice through the first concave hexagonal rotating block 12 and the second locking bolt 6, and the steel support 1 can be locked threefold through the second concave hexagonal rotating block 21 and the third locking bolt 18, therefore, the steel support 1 can achieve better stability, better supporting operation is facilitated, and the use requirements of people can be better met.
In the second embodiment, as shown in fig. 2 and 4, movable clamping grooves are annularly formed on the inner walls of the groove 11 and the concave block 20, and movable clamping blocks matched with the movable clamping grooves are symmetrically mounted on the positions, corresponding to the movable clamping grooves, of the concave hexagonal rotating block one 12 and the concave hexagonal rotating block two 21; the first concave hexagonal rotating block 12 and the second concave hexagonal rotating block 21 can be made to have good stability, so that locking operation can be performed better, and further the use requirements of people can be met better.
In a third embodiment, as shown in fig. 4, one end of the locking bolt third 18 near the inside of the second mounting groove 13 is provided with a limit stop 22; the movement of the third locking bolt 18 can be limited by the limit stop 22, so that the locking operation can be better performed, and the use requirements of people can be better met.
In the fourth embodiment, as shown in fig. 1, 2 and 3, a third mounting groove 23 is formed in the base 2 and on one side of the steel bracket 1 away from the first locking bolt 4, the third mounting groove 23 is communicated with the first mounting groove 5, a movable block 24 is mounted at the bottom end of the third mounting groove 23, a threaded groove adapted to the second locking bolt 6 is formed in the bottom of the movable block 24, and a through hole 25 adapted to the movable block 24 is formed in one end of the second locking bolt 6 away from the movable block 24; a movable telescopic rod 26 is installed at the top of the movable block 24, a spring 27 is annularly arranged inside the third installation groove 23 and positioned outside the movable telescopic rod 26, and the bottom of the spring 27 is fixedly connected with the top of the movable block 24; the top end of the movable telescopic rod 26 extends to the top of the base 2, and a pull ring 28 is installed at the top of the movable telescopic rod 26; through the movable block 24 with through-hole 25 and spring 27's interact, can be right when locking bolt two 6 is fixed, also can carry on spacingly to its activity, and through the pull ring 28 with activity telescopic link 26 then can be convenient for right the movable block 24 is pulled up to be convenient for can be better satisfy people's user demand.
In the fifth embodiment, as shown in fig. 1, bottom plates 29 are mounted at the bottoms of the bases 2, and locking bolts 30 penetrate through the sides, close to each other, of the bottom plates 29; through bottom plate 29 with locking bolt 30 can be right when using base 2 is fixed to be convenient for can reach better stability, and then be convenient for can be better satisfy people's user demand.
For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the steel bracket 1 is placed in the fixed groove 3 on the base 2, and is subjected to a double locking operation through the first locking bolt 4, then the first concave hexagonal rotating block 12 is rotated, the first thread sleeve 7 is driven to rotate under the action of the first connecting rod 10, the first gear 9 and the tooth socket 8, so that the first locking bolt 4 moves, the double locking operation is performed through the first locking bolt 4, then the second concave hexagonal rotating block 21 is rotated, the third gear 15 and the fourth gear 16 are respectively driven to rotate under the action of the second connecting rod 19 and the second gear 14, so that the second thread sleeve 17 rotates, the third locking bolt 18 moves, and the triple locking operation is performed through the third locking bolt 18, performing multiple locking operations on the steel bracket 1 through triple locking; generally speaking, when the weak surrounding rock tunnel primary support is carried out, the steel support can be locked and fixed in a multiple mode, the stability of the steel support is guaranteed, supporting operation on the weak surrounding rock tunnel can be better, and then using requirements of people can be better met.
Through the above detailed description, the person skilled in the art can easily realize the present invention. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (7)
1. The multiple locking structure of the weak surrounding rock tunnel primary support type steel support is characterized by comprising a steel support (1), bases (2) are mounted at the bottoms of two ends of the steel support (1), fixing grooves (3) matched with the bottom end of the steel support (1) are formed in the bases (2), a first locking bolt (4) penetrates through one side edge of each base (2) close to each other, one end, far away from each other, of the first locking bolt (4) penetrates through the steel support (1), a first mounting groove (5) is formed in the base (2) and located below the fixing grooves (3), a second locking bolt (6) is mounted inside the first mounting groove (5), a first thread sleeve (7) matched with the second locking bolt (6) is sleeved on the outer side of the second locking bolt (6), and a tooth socket (8) is annularly arranged on the outer side edge of the first thread sleeve (7), the bottom of the first thread sleeve (7) is provided with a first gear (9) matched with the tooth socket (8), one side of the first gear (9) is provided with a first connecting rod (10), the bottom end of the side, close to each other, of the base (2) is provided with a groove (11), the inside of the groove (11) is provided with a first concave hexagonal rotating block (12), one end, far away from the first gear (9), of the first connecting rod (10) is connected with the first concave hexagonal rotating block (12), the top end of the steel support (1) is internally provided with a second mounting groove (13), two ends of the second mounting groove (13) extend to two side edges of the top end of the steel support (1), the inside of the second mounting groove (13) is provided with a second gear (14), the top end of one side edge of the second gear (14) and the bottom end of the other side edge are respectively provided with a third gear (15) and a fourth gear (16), just three (15) of gear with four (16) of gear are kept away from one side of two (14) of gear all installs thread bush two (17), just the inside of thread bush two (17) all install with three (18) of locking bolt of two (17) looks adaptations of thread bush, just the one end that three (18) of locking bolt kept away from each other all extends to the both ends of mounting groove two (13), the bottom erection joint pole two (19) of two (14) of gear, the inboard mid-mounting in top of steel support (1) has concave type piece (20), the internally mounted of concave type piece (20) has concave type hexagonal turning block two (21), just the bottom of connecting rod two (19) with the top fixed connection of hexagonal turning block two (21).
2. The multiple locking structure of the weak surrounding rock tunnel preliminary bracing section steel bracket as claimed in claim 1, wherein the inner walls of the groove (11) and the concave block (20) are provided with movable clamping grooves, and the positions of the concave hexagonal rotating block I (12) and the concave hexagonal rotating block II (21) corresponding to the movable clamping grooves are symmetrically provided with movable clamping blocks matched with the movable clamping grooves.
3. The multiple locking structure of the weak surrounding rock tunnel preliminary bracing type steel support according to claim 1, characterized in that one end of the locking bolt III (18) close to the inside of the mounting groove II (13) is provided with a limit stop (22).
4. The multiple locking structure of the weak surrounding rock tunnel preliminary bracing type steel support according to claim 1, characterized in that a third mounting groove (23) is formed inside the base (2) and on the side of the steel support (1) far away from the first locking bolt (4), the third mounting groove (23) is communicated with the first mounting groove (5), a movable block (24) is mounted at the bottom end inside the third mounting groove (23), a thread groove matched with the second locking bolt (6) is formed at the bottom of the movable block (24), and a through hole (25) matched with the movable block (24) is formed at the end of the second locking bolt (6) far away from the movable block (24).
5. The multiple locking structure of the weak surrounding rock tunnel preliminary bracing section steel support according to claim 4, characterized in that a movable telescopic rod (26) is installed at the top of the movable block (24), a spring (27) is annularly arranged inside the installation groove III (23) and outside the movable telescopic rod (26), and the bottom of the spring (27) is fixedly connected with the top of the movable block (24).
6. The weak surrounding rock tunnel preliminary bracing shaped steel support multiple-locking structure of claim 5, characterized in that, the top of the movable telescopic rod (26) extends to the top of the base (2), and the top of the movable telescopic rod (26) is installed with a pull ring (28).
7. The weak surrounding rock tunnel preliminary bracing shaped steel support multiple-locking structure of claim 1, characterized in that, the bottom of base (2) all installs bottom plate (29), and the one side that the bottom plate (29) is close to each other all installs through locking bolt (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021257568.9U CN212642756U (en) | 2020-06-30 | 2020-06-30 | Multiple locking structure of weak surrounding rock tunnel preliminary bracing shaped steel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021257568.9U CN212642756U (en) | 2020-06-30 | 2020-06-30 | Multiple locking structure of weak surrounding rock tunnel preliminary bracing shaped steel support |
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| Publication Number | Publication Date |
|---|---|
| CN212642756U true CN212642756U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021257568.9U Active CN212642756U (en) | 2020-06-30 | 2020-06-30 | Multiple locking structure of weak surrounding rock tunnel preliminary bracing shaped steel support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212642756U (en) |
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2020
- 2020-06-30 CN CN202021257568.9U patent/CN212642756U/en active Active
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