Positioning device for standard drilling of tunnel side wall pressure reducing holes
By using positioning devices to position the drilling machine in the construction of tunnel pressure reduction holes, the problems of unstable drilling position and low construction efficiency in the construction of tunnel pressure reduction holes are solved, and the accurate position and efficient construction of the pressure reduction holes are achieved.
Patent Information
- Application Number
- CN202421649879.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-11
AI Technical Summary
During the construction of tunnel pressure reduction holes, the wall thickness of the tunnel after the initial lining is thin, which leads to unstable position when drilling the drilling machine, and it is easy to cause the problem of offsetting the position of the pressure reduction hole. In the prior art, horizontal drilling is only performed after the construction of the second lining of the tunnel in the tunnel, resulting in low construction efficiency.
A positioning device for standardized drilling of the buck hole in the side wall of the tunnel is provided, including a base, a lifting mechanism and a positioning mechanism. The drilling position of the drilling machine is achieved through the positioning plate and the positioning moving assembly to ensure the accurate position of the buck hole and the construction efficiency of the buck hole.
The drilling machine is positioned after the initial lining of the tunnel through the positioning device, which avoids the deviation of the drilling position, improves the forming quality and efficiency of the step-down hole construction, and reduces the steps of pipeline layout after construction.
Smart Images
Figure CN222746048U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of tunnel drilling, and in particular to a positioning device for standard drilling of pressure-reducing holes on tunnel side walls. Background Art
[0002] Tunnel pressure relief holes are important facilities used in tunnel engineering to reduce groundwater levels and water pressure. Through reasonable design and construction, tunnel pressure relief holes can effectively prevent groundwater from penetrating and damaging the tunnel structure, ensuring the long-term safe operation of the tunnel. During the construction of tunnel pressure relief holes, attention should be paid to changes in geological conditions, selection of drilling locations and depths, installation and fixation of drainage facilities, and inspection and acceptance after construction.
[0003] When constructing the tunnel depressurization hole, since the wall thickness of the tunnel after the primary lining is relatively thin, the drilling stroke when the horizontal drilling of the tunnel after the primary lining is directly performed by a drilling machine is relatively short, which makes it difficult to ensure the stability of the position of the drilling machine during drilling, and thus easily causes the position of the opened depressurization hole to shift. Therefore, in the prior art, the depressurization hole is usually opened by horizontal drilling with a drilling machine after the construction of the secondary lining of the tunnel is completed.
[0004] With respect to the above-mentioned prior art, the wall thickness of the tunnel secondary lining after construction is completed is relatively thick, and after the pressure reduction hole is constructed, it is necessary to arrange pipelines in the pressure reduction hole, and the construction efficiency of the tunnel pressure reduction hole is relatively low. Utility Model Content
[0005] In order to improve the construction efficiency of tunnel depressurization holes, the present application provides a positioning device for standard drilling of tunnel side wall depressurization holes.
[0006] The present application provides a positioning device for standard drilling of a tunnel side wall pressure relief hole, which adopts the following technical solution:
[0007] A positioning device for standard drilling of a tunnel side wall pressure reduction hole comprises a base, a lifting mechanism and a positioning mechanism, wherein the positioning mechanism comprises a positioning seat, a positioning plate and a positioning movement component, wherein two positioning plates are arranged opposite to each other in a horizontal direction, and the positioning movement component is arranged on the positioning seat and is used to drive the two positioning plates to move toward or away from each other; the lifting mechanism is arranged on the base and is used to drive the positioning seat to move in a vertical direction.
[0008] By adopting the above technical solution, after the initial lining construction of the tunnel, the base is moved to the position where the pressure relief hole is drilled, and after the drill bit of the drilling machine is placed on the two positioning plates, the two positioning plates are driven to move towards each other through the positioning motion component to achieve the positioning of the position where the drilling machine is drilling, so that the position where the drilling machine is drilling is not easy to shift, which is convenient for ensuring the molding quality of the pressure relief hole after drilling, and then the construction can be completed by pre-embedding the pipe into the pressure relief hole and performing the secondary lining construction. During the construction of the pressure relief hole, the drilling position of the drilling machine is positioned by two positioning plates during the initial lining before drilling. The wall thickness of the tunnel after the initial lining is relatively thin, and after the initial lining construction, the pipe is pre-embedded and the secondary lining is cast. There is no need to arrange the pipe in the pressure relief hole after the pressure relief hole construction is completed, which is conducive to improving the construction efficiency of the tunnel pressure relief hole.
[0009] Optionally, the positioning motion assembly includes a positioning bidirectional screw, the two positioning plates are slidably engaged with the positioning seat, the positioning bidirectional screw is rotatably installed on the positioning seat, and the two ends of the positioning bidirectional screw are respectively passed through the two positioning plates and engaged with the threads of the two positioning plates.
[0010] By adopting the above technical solution, the positioning bidirectional screw is rotated, and the two positioning plates cooperate with the threads of the positioning bidirectional screw and move toward or away from each other under the limiting action of the positioning seat. The setting of the positioning bidirectional screw makes the movement of the two positioning plates toward or away from each other convenient and stable.
[0011] Optionally, the positioning seat is provided with a slide groove extending along its length direction, and the two positioning plates both have a sliding portion, and the sliding portions of the two positioning plates both slide and fit in the slide groove.
[0012] By adopting the above technical solution, the cooperation between the sliding part and the sliding groove plays a further limiting role when the positioning plate moves, which is beneficial to fully ensure the stability of the sports version when it moves.
[0013] Optionally, the lifting mechanism includes a lifting rod body, a lifting screw and a lifting drive assembly, the lifting rod body is fixedly installed on the base, the lifting screw is passed through and slidably engaged with the lifting rod body, the positioning seat is installed on the lifting screw, and the lifting drive assembly includes a lifting rotating ring and a lifting limit piece, the lifting rotating ring is rotatably installed on the lifting rod body, the lifting screw is passed through and threadedly engaged with the lifting rotating ring, and the lifting limit piece is used to limit the rotation of the lifting screw.
[0014] By adopting the above technical solution, when force is applied to rotate the lifting and rotating ring, the lifting screw moves in the vertical direction under the limiting action of the lifting and limiting member, thereby facilitating the two positioning plates to realize the positioning of the drilling machine when drilling holes at different heights. It has strong applicability, and the setting of the lifting and rotating ring makes the movement of the positioning seat in the vertical direction convenient and fast.
[0015] Optionally, the lifting limit member includes a limit strip fixedly connected to the inner wall of the lifting rod body, the lifting screw rod is provided with a limit slot extending along the vertical direction, and the limit strip is slidably fitted in the limit slot.
[0016] By adopting the above technical solution, the cooperation of the limit strip and the limit groove can limit the lifting screw rod when it rotates around itself, and at the same time guide the movement of the lifting screw rod in the vertical direction, so as to ensure the stability of the lifting screw rod when it moves in the vertical direction.
[0017] Optionally, the positioning seat is rotatably mounted on a lifting screw rod in a horizontal direction, and the lifting screw rod is provided with a rotating component for driving the positioning seat to rotate.
[0018] By adopting the above technical solution, the rotating setting of the positioning seat makes it easy for the two positioning plates to realize the positioning of the drilling machine when drilling at different inclination angles, and at the same time it is easy to adapt to different terrain conditions and has strong applicability.
[0019] Optionally, the rotating assembly includes a rotating shaft, a rotating worm wheel and a rotating worm, the rotating shaft is fixedly mounted on a positioning seat, the rotating shaft passes through the lifting screw in a horizontal direction and rotates with the lifting screw, the rotating worm wheel is coaxially fixed on the rotating shaft, and the rotating worm is rotatably mounted on the lifting screw and meshes with the rotating worm wheel.
[0020] By adopting the above technical solution, when force is applied to rotate the rotating worm, the rotating worm wheel drives the positioning seat to rotate through the rotating shaft. The self-locking effect between the rotating worm and the rotating worm wheel is conducive to ensuring the stability of the position of the positioning seat after rotation.
[0021] Optionally, buffer pads are fixedly connected to opposite sides of the two positioning plates.
[0022] By adopting the above technical solution, the setting of the buffer pad makes it difficult for the two positioning plates to be damaged by collision due to rigid contact with the drilling machine during drilling, which is beneficial to ensuring the service life of the positioning plates.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. During the construction of the pressure-reducing hole, the drilling position of the drilling machine is positioned by two positioning plates during the initial lining before drilling. The tunnel wall thickness after the initial lining is thinner, and after the initial lining construction, the pipeline is pre-buried and then the secondary lining is poured. There is no need to arrange the pipeline in the pressure-reducing hole after the pressure-reducing hole construction is completed, which is beneficial to improve the construction efficiency of the tunnel pressure-reducing hole.
[0025] 2. When force is applied to rotate the lifting rotating ring, the lifting screw moves in the vertical direction under the limiting action of the lifting limiter, so that the two positioning plates can be positioned at different heights when the drilling machine is drilling, and the applicability is strong.
[0026] 3. The rotating setting of the positioning seat makes it easy for the two positioning plates to realize the positioning of the drilling machine when drilling at different inclination angles, and it is also easy to adapt to different terrain conditions, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic front view of the overall structure of an embodiment of the present application.
[0028] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the embodiment of the present application.
[0029] Figure 3 It is a schematic diagram of the connection relationship between the lifting rod body and the lifting screw rod in the embodiment of the present application.
[0030] Description of reference numerals:
[0031] 1. Base; 2. Lifting rod body; 3. Lifting screw; 4. Lifting slot; 5. Limit strip; 6. Limit slot; 7. Positioning seat; 701. Rotating part; 702. Fixed part; 8. Positioning plate; 9. Rotating shaft; 10. Rotating worm gear; 11. Rotating worm; 12. Screw seat; 13. Rotating slot; 14. Slide slot; 15. Sliding part; 16. Bidirectional screw; 17. Handle; 18. Buffer pad; 19. Lifting rotating ring. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-3 This application is described in further detail.
[0033] The present application embodiment discloses a positioning device for standard drilling of a pressure relief hole in a tunnel side wall. Figure 1 The positioning device for drilling a tunnel side wall pressure relief hole in a standardized manner includes a base 1, a lifting mechanism and a positioning mechanism, wherein the base 1 is roughly in the shape of a rectangular plate, and the lifting mechanism includes a lifting rod body 2, a lifting screw rod 3 and a lifting drive assembly.
[0034] Reference Figure 2 and Figure 3The lifting rod body 2 is fixedly mounted on the top of the base 1 and arranged in the middle of the surface where it is located. A lifting groove 4 is provided on the top of the lifting rod body 2, and the lifting screw 3 slides and fits in the lifting groove 4. The lifting drive assembly includes a lifting rotating ring 19 and a lifting limiter, wherein the lifting rotating ring 19 is coaxially rotatably mounted on the top of the lifting rod body 2, the lifting screw 3 is passed through and threadedly fitted on the inner wall of the lifting rotating ring 19, and the lifting limiter includes a limiter bar 5 vertically fixedly connected to the inner wall of the lifting rod body 2, that is, the inner wall of the lifting groove 4, the lifting screw 3 is provided with a limiter groove 6 extending in the vertical direction, and the limiter bar 5 slides and fits in the limiter groove 6 to limit the rotation of the lifting screw 3 around its own axis direction, so that when the lifting rotating ring 19 rotates, the lifting screw 3 performs lifting and lowering movement in the vertical direction due to the threaded fit with the lifting rotating ring 19 and the limiting action of the limiter bar 5.
[0035] Reference Figure 2 The positioning mechanism includes a positioning seat 7, a positioning plate 8 and a positioning motion component, wherein the positioning seat 7 is rotatably mounted on the top of the lifting screw 3, and the lifting screw 3 is provided with a rotating component for driving the positioning seat 7 to rotate. Specifically, the rotating component includes a rotating shaft 9, a rotating worm wheel 10 and a rotating worm 11. The top of the lifting screw 3 is integrally fixedly connected with a screw seat 12, and the top of the screw seat 12 is provided with a rotating groove 13 that penetrates in the horizontal direction. The positioning seat 7 includes a rotating portion 701 and a fixed portion fixedly connected to the top of the rotating portion 701. 702, the rotating shaft 9 is fixedly installed on the rotating part 701, the rotating shaft 9 is horizontally penetrated through the screw seat 12 and rotatably cooperates with the screw seat 12, the rotating worm wheel 10 is coaxially fixedly installed on one end of the rotating shaft 9, the rotating worm 11 is horizontally rotatably installed on the screw seat 12 and meshes with the rotating worm wheel 10, so that when the rotating worm 11 rotates, the rotating worm wheel 10 drives the positioning seat 7 to rotate around the axis of the rotating shaft 9 through the rotating shaft 9, and the self-locking effect between the rotating worm 11 and the rotating worm wheel 10 is conducive to ensuring the stability of the position of the positioning seat 7 after rotation.
[0036] Continue to refer to Figure 2 The top of the fixing portion 702 is provided with a slide groove 14 extending along its length direction, and two positioning plates 8 are arranged horizontally opposite to each other. The bottom of the two positioning plates 8 are integrally fixedly connected with a sliding portion 15, and the sliding portions 15 of the two positioning plates 8 are slidably matched in the slide groove 14 to ensure the stability of the two positioning plates 8 when they move toward or away from each other. The positioning movement component includes a positioning bidirectional screw rod 16, which is rotatably installed on the positioning seat 7 and located in the slide groove 14. The two ends of the positioning bidirectional screw rod 16 are respectively penetrated through the sliding portions 15 of the two positioning plates 8 and threadedly matched with the sliding portions 15 of the two positioning plates 8, so that when the bidirectional screw rod 16 rotates, the two positioning plates 8 move toward or away from each other.
[0037] Reference Figure 2 and Figure 3One end of the bidirectional screw 16 is passed through the outside of the positioning seat 7 and is fixedly connected with a handle 17, so as to apply force to realize the rotation of the bidirectional screw 16. The two positioning plates 8 are both arranged in an arc shape, and a buffer pad 18 is fixed by bonding on the opposite side of the two positioning plates 8. The material of the buffer pad 18 is selected as rubber, so that the two positioning plates 8 are not easy to be damaged by collision caused by rigid contact with the drilling machine during drilling, which is conducive to ensuring the service life of the positioning plates 8.
[0038] The implementation principle of the positioning device for standard drilling of the pressure-reducing hole on the side wall of the tunnel in the embodiment of the present application is as follows: after the initial lining construction of the tunnel, first move the base 1 to the position where the pressure-reducing hole is to be drilled, place the drill bit of the drilling machine on the two positioning plates 8, and then drive the two positioning plates 8 to move in a direction close to each other through the positioning motion component to achieve the positioning of the position where the drilling machine is to be drilled, so that the position where the drilling machine is to be drilled is not easy to be offset, which is convenient for ensuring the molding quality of the pressure-reducing hole after drilling, and then the construction can be completed by pre-burying the pipeline in the pressure-reducing hole and performing the secondary lining construction. During the construction of the pressure-reducing hole, the drilling position of the drilling machine is positioned by the two positioning plates 8 during the initial lining and then the drilling process is performed. The wall thickness of the tunnel after the initial lining is relatively thin, and after the initial lining construction, the pipeline is pre-buried and the secondary lining is cast. There is no need to arrange the pipeline in the pressure-reducing hole after the pressure-reducing hole construction is completed, which is conducive to improving the construction efficiency of the tunnel pressure-reducing hole.
[0039] In addition, when the lifting rotating ring 19 is rotated by applying force, the lifting screw 3 moves in the vertical direction under the limiting action of the lifting limiter, so that the two positioning plates 8 can be positioned at different heights when the drilling machine is drilling, and the applicability is strong. The setting of rotating the worm 11 to drive the positioning seat 7 to rotate by rotating the worm gear 10 facilitates the two positioning plates 8 to be positioned when the drilling machine is drilling at different inclination angles, and is also convenient for adapting to different terrain conditions, and the applicability is strong.
[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A positioning device for standard drilling of pressure relief holes on tunnel side walls, characterized in that: The invention comprises a base (1), a lifting mechanism and a positioning mechanism, wherein the positioning mechanism comprises a positioning seat (7), a positioning plate (8) and a positioning movement component, wherein two positioning plates (8) are arranged opposite to each other in a horizontal direction, and the positioning movement component is arranged on the positioning seat (7) and is used to drive the two positioning plates (8) to move in a direction of approaching or moving away from each other; the lifting mechanism is arranged on the base (1) and is used to drive the positioning seat (7) to move in a vertical direction.
2. A positioning device for standard drilling of pressure relief holes on tunnel side walls according to claim 1, characterized in that: The positioning motion assembly comprises a positioning bidirectional screw rod (16), the two positioning plates (8) are both slidably matched with the positioning seat (7), the positioning bidirectional screw rod (16) is rotatably mounted on the positioning seat (7), and the two ends of the positioning bidirectional screw rod (16) are respectively passed through the two positioning plates (8) and threadedly matched with the two positioning plates (8).
3. A positioning device for standard drilling of pressure relief holes in tunnel side walls according to claim 2, characterized in that: The positioning seat (7) is provided with a slide groove (14) extending along its length direction, and the two positioning plates (8) both have a sliding portion (15), and the sliding portions (15) of the two positioning plates (8) are slidably fitted in the slide groove (14).
4. A positioning device for standard drilling of pressure relief holes in tunnel side walls according to claim 1, characterized in that: The lifting mechanism comprises a lifting rod body (2), a lifting screw rod (3) and a lifting drive assembly, wherein the lifting rod body (2) is fixedly mounted on the base (1), the lifting screw rod (3) is inserted through and slidably engaged with the lifting rod body (2), the positioning seat (7) is installed on the lifting screw rod (3), and the lifting drive assembly comprises a lifting rotating ring (19) and a lifting limit piece, wherein the lifting rotating ring (19) is rotatably mounted on the lifting rod body (2), the lifting screw rod (3) is inserted through and threadedly engaged with the lifting rotating ring (19), and the lifting limit piece is used to limit the rotation of the lifting screw rod (3).
5. A positioning device for standard drilling of pressure relief holes in tunnel side walls according to claim 4, characterized in that: The lifting limit member comprises a limit strip (5) fixedly connected to the inner wall of the lifting rod body (2); the lifting screw rod (3) is provided with a limit slot (6) extending in the vertical direction; and the limit strip (5) is slidably fitted in the limit slot (6).
6. A positioning device for standard drilling of pressure relief holes in tunnel side walls according to claim 1, characterized in that: The positioning seat (7) is rotatably mounted on the lifting screw rod (3) in a horizontal direction, and the lifting screw rod (3) is provided with a rotating assembly for driving the positioning seat (7) to rotate.
7. A positioning device for standard drilling of pressure relief holes in tunnel side walls according to claim 6, characterized in that: The rotating assembly comprises a rotating shaft (9), a rotating worm wheel (10) and a rotating worm (11); the rotating shaft (9) is fixedly mounted on the positioning seat (7); the rotating shaft (9) passes through the lifting screw (3) in the horizontal direction and is rotatably matched with the lifting screw (3); the rotating worm wheel (10) is coaxially fixedly mounted on the rotating shaft (9); and the rotating worm (11) is rotatably mounted on the lifting screw (3) and is meshed with the rotating worm wheel (10).
8. The positioning device for standard drilling of pressure relief holes in tunnel side walls according to claim 1, characterized in that: The opposite sides of the two positioning plates (8) are both fixedly connected with a buffer pad (18).