CN212898561U - Anchor grouting time indicating device for coal roadway support - Google Patents
Anchor grouting time indicating device for coal roadway support Download PDFInfo
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- CN212898561U CN212898561U CN202021857632.7U CN202021857632U CN212898561U CN 212898561 U CN212898561 U CN 212898561U CN 202021857632 U CN202021857632 U CN 202021857632U CN 212898561 U CN212898561 U CN 212898561U
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- slip casting
- plate
- fixedly connected
- indicating device
- rod
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Abstract
The utility model provides a coal road is strutted with anchor and is annotated time indicating device, including setting up at the direction mark and the electronic indicator of slip casting stock afterbody, electronic indicator includes the mount pad of can dismantling the connection with the slip casting stock, a plurality of blind holes that extend along slip casting stock length direction are seted up towards one side of slip casting stock head to the mount pad, the fixed contact switch that is provided with of blind end of blind hole, contact switch includes the shell fragment, flexible being provided with the telescopic link in the blind hole, the blind hole is stretched out to the one end of telescopic link and fixedly connected with contact plate, week side fixedly connected with communicator of mount pad, it is equipped with the controller to inlay in the mount pad, controller and the equal electric connection of communicator and all contact switches. The utility model provides a coal road is strutted with anchor and is annotated time indicating device can monitor the relative position of tunnel surface displacement condition and tunnel surface and slip casting stock in real time, and then judges when the slip casting stock reaches best anchor and annotate.
Description
Technical Field
The utility model relates to a technical field is strutted in the coal road, specific anchor notes time indicating device is strutted with the coal road that says so.
Background
The support experience of underground engineering at home and abroad shows that anchor grouting support is one of the most effective modes for reinforcing broken fractured rock masses, so that a grouting anchor rod becomes a main component in a coal roadway support system. When the grouting anchor rod is used, the grouting anchor rod 3 needs to be inserted into the anchor rod mounting hole 2, then the insertion end of the grouting anchor rod 3 is fixed through the anchoring agent 4 such as a resin cartridge and the like, the grouting pipe 30 is connected with the grouting anchor rod 3 and led to the grouting anchor rod 3 to be filled with grout after the optimal anchor filling time is reached, finally the open end of the anchor rod mounting hole 2 is sealed by the sealer 7, and the success or failure of grouting reinforcement is often determined by the selection of the anchor filling time in the whole process. Due to the condition complexity of surrounding rocks of the roadway, the lag time required by forming necessary cracks around each grouting hole is often difficult to reasonably determine due to the change of the surrounding rocks of different sections of the same roadway, so that the optimal anchoring and grouting time of different grouting anchor rods has great uncertainty. In the prior art, the optimal anchoring and grouting time of a grouting anchor rod is determined by adopting methods of roadway surface displacement observation and deep displacement observation, although the effect is good, a large amount of time is required for observation, and the efficiency is too low.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough among the prior art, the utility model provides a coal road is strutted with anchor and is annotated time indicating device can monitor the relative position of tunnel surface displacement condition and tunnel surface and slip casting stock in real time, and then judges whether the slip casting stock reaches when best anchor is annotated.
In order to achieve the above object, the utility model discloses a concrete scheme does: the utility model provides a coal road is strutted with anchor and is annotated time indicating device, including setting up at the direction mark and the electronic indicator of slip casting stock afterbody, electronic indicator includes the mount pad of can dismantling the connection with the slip casting stock, a plurality of blind holes that extend along slip casting stock length direction are seted up towards one side of slip casting stock head to the mount pad, the fixed contact switch that is provided with of blind end of blind hole, contact switch includes the shell fragment, flexible being provided with the telescopic link in the blind hole, the blind hole is stretched out to the one end of telescopic link and fixedly connected with contact plate, week side fixedly connected with communicator of mount pad, it is equipped with the controller to inlay in the mount pad, controller and the equal electric connection of communicator and all contact switches.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: the blind hole is fixedly provided with a guide plate, the guide plate is provided with a through hole, the through hole is fixedly provided with a guide ring, and the telescopic rod penetrates through the guide ring.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: the blind hole is fixedly provided with a movable plate, and the telescopic rod penetrates through the movable plate and is fixedly connected with the movable plate.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: the telescopic link passes fixedly connected with anchor strut behind the fly leaf, and the sectional area of anchor strut is greater than the sectional area of telescopic link, anchor strut with contact plate fixed connection.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: the telescopic link is sleeved with a first spring, and two ends of the first spring are respectively fixedly connected with the guide plate and the movable plate.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: the mounting seat is annular, sets up a plurality of along the passageway of radial extension on the mounting seat, and the fixed limiting plate that is provided with in the passageway wears to be equipped with the push-and-pull rod on the limiting plate, and the push-and-pull rod is fixedly connected with push pedal after stretching out the passageway towards the one end in the mounting seat outside.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: the push-pull rod is fixedly sleeved with a connecting plate, a second spring is connected between the connecting plate and the limiting plate, and the second spring is sleeved on the push-pull rod.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: one end of the push-pull rod, which faces the inner side of the mounting seat, is integrally connected with a tip.
The anchoring and grouting time indicating device for coal roadway support is further optimized as follows: the contact switch is provided with a groove, and the elastic sheet is arranged in the groove.
Has the advantages that: the utility model discloses can monitor the relative position of tunnel surface displacement condition and tunnel surface and slip casting stock in real time, and then judge whether the slip casting stock reaches best anchor filling time, finally promote the anchor strength of slip casting stock and the support intensity of strutting arrangement.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of an electronic indicator;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of the manner in which the mounting socket is installed;
fig. 5 is a state diagram of the process of grouting the anchor rod.
Description of the drawings: 1-roadway, 2-anchor rod mounting hole, 3-grouting anchor rod, 4-anchoring agent, 5-electronic indicator, 6-indication mark, 7-sealer, 8-mounting seat, 9-controller, 10-communicator, 11-blind hole, 12-contact switch, 13-guide plate, 14-first spring, 15-movable plate, 16-contact plate, 17-reinforcing rod, 18-telescopic rod, 19-guide ring, 20-elastic sheet, 21-groove, 22-through hole, 23-channel, 24-limiting plate, 25-second spring, 26-push-pull rod, 27-push plate, 28-tip, 29-connecting plate and 30-grouting pipe.
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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1 to 5, an anchor grouting time indicating device for coal roadway support, including setting up at the indicator 6 and the electronic indicator 5 of grouting anchor rod 3 afterbody, electronic indicator 5 includes can dismantle the mount pad 8 of being connected with grouting anchor rod 3, a plurality of blind holes 11 that extend along grouting anchor rod 3 length direction are seted up towards one side of grouting anchor rod 3 head to mount pad 8, the blind end of blind hole 11 is fixed and is provided with contact switch 12, contact switch 12 includes shell fragment 20, flexible being provided with telescopic link 18 in the blind hole 11, the one end of telescopic link 18 stretches out blind hole 11 and fixedly connected with contact plate 16, week side fixedly connected with communicator 10 of mount pad 8, inlay in the mount pad 8 and be equipped with controller 9, controller 9 and communicator 10 and all contact switches 12 electric connection.
When in use, firstly, a proper grouting anchor rod 3 is selected according to the geological characteristics of the roadway 1, the anchoring length of the grouting anchor rod 3 is determined, then the grouting anchor rod 3 is inserted into the anchor rod mounting hole 2, the insertion end of the grouting anchor rod 3 is fixed through an anchoring agent 5, then an indicating mark 6 is arranged at the tail part of the grouting anchor rod 3, a certain distance is reserved between the indicating mark 6 and the anchor rod mounting hole 2, then an electronic indicator 5 is arranged beside the indicating mark 6, and the electronic indicator 5 is positioned at one side of the indicating mark 6, which faces away from the anchor rod mounting hole 2. After a period of time, tunnel 1 surface takes place the displacement and can drive slip casting stock 3 to the inside removal of stock mounting hole 2, in-process contact plate 16 contacts with the inner wall in tunnel 1 and because receive the hindrance of tunnel 1 inner wall and to inside removal of blind hole 11, when the open end parallel and level of index mark 6 and stock mounting hole 2, slip casting stock 3 reachs the best anchor slip casting time, telescopic link 18 makes contact switch 12 switch on with shell fragment 20 contact this moment, when one of them contact switch 12 switches on, controller 9 sends the message to the staff through communicator 10, remind the staff can begin to carry out the slip casting. It should be noted that the indication mark 6 is used for marking the position of the electronic indicator 5, the indication mark 6 can be uniformly set after all grouting bolts 3 are completely installed, and then the electronic indicators 5 are installed one by one, so that the installation efficiency is improved.
The utility model discloses can monitor the relative position of 1 surface displacement condition in real time in tunnel and 1 surface in tunnel and slip casting stock 3, and then judge whether slip casting stock 3 reaches best anchor grouting time, finally promote the anchor strength of slip casting stock 3 and the support intensity of strutting arrangement.
In order to ensure that the telescopic rod 18 can smoothly contact with the elastic sheet 20 and further enable the contact switch 12 to be conducted, the guide plate 13 is fixedly arranged in the blind hole 11, a through hole 22 is formed in the guide plate 13, a guide ring 19 is fixedly arranged in the through hole 22, and the telescopic rod 18 penetrates through the guide ring 19. The guide plate 13 and the guide ring 19 cooperate to guide the telescopic rod 18, so as to ensure that the telescopic rod 18 can be aligned with the elastic sheet 20. On the other hand, the guide plate 13 and the guide ring 19 can also play a role in enhancing the sealing effect, and prevent external impurities from invading into the blind hole 11 to corrode the contact switch 12.
In order to further guide the telescopic rod 18 and avoid the telescopic rod 18 from deflecting, the movable plate 15 is fixedly arranged in the blind hole 11, and the telescopic rod 18 passes through the movable plate 15 and is fixedly connected with the movable plate 15. The movable plate 15 can be attached to the inner wall of the blind hole 11, and when the telescopic rod 18 is inclined, the movable plate 15 can block the telescopic rod 18, so that the inclined telescopic rod 18 is avoided.
In order to further ensure that the telescopic rod 18 can smoothly contact with the elastic sheet 20, the contact switch 12 is provided with a groove 21, and the elastic sheet 20 is arranged in the groove 21.
Considering that the contact plate 16 needs to be in direct contact with the surface of the roadway 1, and the surface of the roadway 1 is rough and uneven, in order to avoid the deformation of the telescopic rod 18 caused by the lateral extrusion of the surface of the roadway 1 on the contact plate 16, the telescopic rod 18 penetrates through the movable plate 15 and is fixedly connected with the reinforcing rod 17, the sectional area of the reinforcing rod 17 is larger than that of the telescopic rod 18, and the reinforcing rod 17 is fixedly connected with the contact plate 16.
After the optimal anchoring time of the grouting anchor rod 3 is determined and anchoring is performed, the electronic indicator 5 can be detached, in order to conveniently reset the detached electronic indicator 5 for subsequent use, the telescopic rod 18 is sleeved with a first spring 14, and two ends of the first spring 14 are fixedly connected with the guide plate 13 and the movable plate 15 respectively. During the process of pushing the telescopic rod 18 towards the inside of the blind hole 11 by the surface of the tunnel 1, the first spring 14 is compressed, and after the electronic indicator 5 is removed, the telescopic rod 18, the movable plate 15, the reinforcing rod 17 and the contact plate 16 are all reset under the action of the first spring 14.
The specific setting mode of the electronic indicator 5 is as follows: the mounting seat 8 is annular, a plurality of channels 23 extending along the radial direction are formed in the mounting seat 8, a limiting plate 24 is fixedly arranged in each channel 23, a push-pull rod 26 penetrates through each limiting plate 24, and a push plate 27 is fixedly connected to one end, facing the outer side of the mounting seat 8, of each push-pull rod 26 after extending out of each channel 23. During installation, the push plate 27 is pulled outwards at first, the push plate 27 drives the push-pull rod 26 to move towards the outside of the installation seat 8, then the installation seat 8 is sleeved at the tail part of the grouting anchor rod 3, then the push plate 27 is pushed inwards, the push plate 27 drives the push-pull rod 26 to move towards the inside of the installation seat 8 until the push-pull rod 26 is in contact with the grouting anchor rod 3, and due to the fact that the surface of the grouting anchor rod 3 is provided with the threaded structure, large friction force exists between the push-pull rod 26 and the installation seat, and therefore the whole installation seat 8 cannot be pushed down from the grouting anchor rod 3 when the telescopic rod 18 is pushed towards the blind hole 11 on the surface of the roadway 1.
In order to further ensure the stability of the mounting seat 8, a connecting plate 29 is fixedly sleeved on the push-pull rod 26, a second spring 25 is connected between the connecting plate 29 and the limit plate 24, and the second spring 25 is sleeved on the push-pull rod 26. During installation, the push-pull rod 26 is pulled outwards, the push-pull rod 26 drives the connecting plate 29 to move synchronously, the second spring 25 is compressed in the moving process of the connecting plate 29, the push plate 27 is loosened after the mounting seat 8 is sleeved on the grouting anchor rod 3, the second spring 25 resets and pushes the connecting plate 29 to move towards the inside of the mounting seat 8, the push-pull rod 26 is driven by the connecting plate 29 to move towards the inside of the mounting seat 8, and finally the push-pull rod 26 is tightly pressed against the grouting anchor rod 3, so that the mounting seat 8 is ensured to be stable enough in the using process.
To further ensure the stability of the mounting seat 8, a tip 28 is integrally connected to the end of the push-pull rod 26 facing the inside of the mounting seat 8. The point 28 can be inserted into a thread on the slip casting anchor 3, so that the mounting socket 8 is completely locked in the axial direction of the slip casting anchor 3, ensuring that the mounting socket 8 cannot fall off the slip casting anchor 3 without human intervention.
Finally, the utility model discloses in, controller 9 can adopt STM32 singlechip, and communicator 10 can adopt the WIFI module and be connected with staff's smart mobile phone wireless communication.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a coal road is strutted with anchor and is annotated time indicating device which characterized in that: including setting up at direction mark (6) and electronic indicator (5) of slip casting stock (3) afterbody, electronic indicator (5) include mount pad (8) of being connected with slip casting stock (3) can be dismantled, a plurality of blind holes (11) that extend along slip casting stock (3) length direction are seted up towards one side of slip casting stock (3) head in mount pad (8), the fixed contact switch (12) that is provided with of blind end of blind hole (11), contact switch (12) include shell fragment (20), flexible being provided with telescopic link (18) in blind hole (11), blind hole (11) and fixedly connected with contact plate (16) are stretched out to the one end of telescopic link (18), week side fixedly connected with communicator (10) of mount pad (8), it is equipped with controller (9) to inlay in mount pad (8), controller (9) and communicator (10) and the equal electric connection of all contact switches (12).
2. An anchoring time indicating device for a coal roadway support as claimed in claim 1, wherein: the telescopic rod is characterized in that a guide plate (13) is fixedly arranged in the blind hole (11), a through hole (22) is formed in the guide plate (13), a guide ring (19) is fixedly arranged in the through hole (22), and the telescopic rod (18) penetrates through the guide ring (19).
3. An anchoring time indicating device for a coal roadway support as claimed in claim 2, wherein: a movable plate (15) is fixedly arranged in the blind hole (11), and the telescopic rod (18) penetrates through the movable plate (15) and is fixedly connected with the movable plate (15).
4. An anchoring time indicator for a coal roadway support as claimed in claim 3, wherein: the telescopic rod (18) penetrates through the movable plate (15) and then is fixedly connected with a reinforcing rod (17), the sectional area of the reinforcing rod (17) is larger than that of the telescopic rod (18), and the reinforcing rod (17) is fixedly connected with the contact plate (16).
5. An anchoring time indicator for a coal roadway support as claimed in claim 4, wherein: the telescopic rod (18) is sleeved with a first spring (14), and two ends of the first spring (14) are fixedly connected with the guide plate (13) and the movable plate (15) respectively.
6. An anchoring time indicating device for a coal roadway support as claimed in claim 1, wherein: the mounting seat (8) is annular, a plurality of channels (23) extending along the radial direction are formed in the mounting seat (8), a limiting plate (24) is fixedly arranged in each channel (23), a push-pull rod (26) penetrates through each limiting plate (24), and one end, facing the outer side of the mounting seat (8), of each push-pull rod (26) extends out of each channel (23) and then is fixedly connected with a push plate (27).
7. An anchoring time indicator for a coal roadway support as claimed in claim 6, wherein: the push-pull rod (26) is fixedly sleeved with a connecting plate (29), a second spring (25) is connected between the connecting plate (29) and the limiting plate (24), and the push-pull rod (26) is sleeved with the second spring (25).
8. An anchoring time indicator for a coal roadway support as claimed in claim 6, wherein: one end of the push-pull rod (26) facing the inner side of the mounting seat (8) is integrally connected with a tip (28).
9. An anchoring time indicating device for a coal roadway support as claimed in claim 1, wherein: a groove (21) is formed in the contact switch (12), and the elastic piece (20) is arranged in the groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021857632.7U CN212898561U (en) | 2020-08-31 | 2020-08-31 | Anchor grouting time indicating device for coal roadway support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021857632.7U CN212898561U (en) | 2020-08-31 | 2020-08-31 | Anchor grouting time indicating device for coal roadway support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898561U true CN212898561U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021857632.7U Expired - Fee Related CN212898561U (en) | 2020-08-31 | 2020-08-31 | Anchor grouting time indicating device for coal roadway support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045697A (en) * | 2022-05-13 | 2022-09-13 | 中国科学院武汉岩土力学研究所 | Application method of sleeve expansion type large-deformation prestress hydraulic expansion grouting anchor rod |
-
2020
- 2020-08-31 CN CN202021857632.7U patent/CN212898561U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045697A (en) * | 2022-05-13 | 2022-09-13 | 中国科学院武汉岩土力学研究所 | Application method of sleeve expansion type large-deformation prestress hydraulic expansion grouting anchor rod |
| CN115045697B (en) * | 2022-05-13 | 2023-10-24 | 中国科学院武汉岩土力学研究所 | Use method of sleeve expansion type large-deformation prestress hydraulic expansion grouting anchor rod |
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| 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: 20210406 Termination date: 20210831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |