CN219241935U - Flatness control device for punching top hole on tunnel two liners - Google Patents
Flatness control device for punching top hole on tunnel two liners Download PDFInfo
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- CN219241935U CN219241935U CN202320136976.6U CN202320136976U CN219241935U CN 219241935 U CN219241935 U CN 219241935U CN 202320136976 U CN202320136976 U CN 202320136976U CN 219241935 U CN219241935 U CN 219241935U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a flatness control device for punching a top hole of a tunnel second lining, which comprises a connecting box body; the upper port of the connecting box body is communicated with the punching hole of the vault template, and the plugging sliding block is arranged in the connecting box body in a matched manner; the connecting end plate is arranged at the lower port of the connecting box body, the upper end of the connecting end plate is rotationally connected with the lower surface of the vault formwork, and one side of the lower end of the connecting end plate is fixedly connected with the lower end of the plugging sliding block; one end of the driving screw rod is connected with the other side of the lower end of the connecting end plate, and the other end of the driving screw rod is connected with the supporting arch of the two lining trolleys; the connection box body is provided with a pumping port, one end of the concrete pump pipe connection mechanism is communicated with the pumping port, and the other end of the concrete pump pipe connection mechanism is connected with the output end of the concrete pumping equipment; according to the utility model, the connecting end plate and the driving screw rod are utilized to push the plugging sliding block to move in the connecting box body, so that the opening or the plugging of the opposite-punching jacking hole and the pumping port is realized, the phenomenon of void or bulge of concrete at the punching jacking hole is avoided, and the flatness of the concrete at the punching jacking hole is improved.
Description
Technical Field
The utility model belongs to the technical field of construction quality control of secondary lining concrete of a tunnel, and particularly relates to a flatness control device for punching a top hole of a secondary lining of the tunnel.
Background
The second lining of the tunnel is used for punching a top hole and is used for the top punching construction of the second lining of the tunnel; at present, plugging is mostly carried out in a plugboard mode aiming at plugging a top hole; after the roof-punching construction is completed, concrete residues exist between the plugboard and the concrete pump pipe, and the plugboard plugging process is difficult; meanwhile, the concrete at the top hole is lost due to concrete residues or the insertion plate process, so that the phenomenon of void or bulge at the top hole is caused, and the construction quality of the secondary lining concrete of the tunnel is greatly reduced.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model provides a flatness control device for punching a top hole of a second lining of a tunnel, wherein the difficulty in the existing process of plugging the top hole is high, and the top hole is subjected to void or bulge, so that the technical problem of the construction quality of the second lining of the tunnel concrete is greatly reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a flatness control device for punching a top hole of a tunnel secondary lining, which is arranged on a secondary lining trolley; the flatness control device comprises a connecting box body, a plugging slide block, a connecting end plate, a driving screw rod and a concrete pump pipe connecting mechanism;
the connecting box body is fixedly arranged below the vault formwork of the secondary lining trolley and is of a hollow arc box-shaped structure; wherein, the upper port of the connecting box body is communicated with the punching hole of the vault template; the plugging sliding block is an arc-shaped steel block and is arranged in the connecting box body in a matched mode; the plugging sliding block can slide along the arc direction of the connecting box body;
the connecting end plate is arranged at the lower port of the connecting box body, the upper end of the connecting end plate is rotationally connected with the lower surface of the vault formwork, and one side of the lower end of the connecting end plate is fixedly connected with the lower end of the plugging sliding block; one end of the driving screw rod is connected with the other side of the lower end of the connecting end plate, and the other end of the driving screw rod is connected with the supporting arch of the two lining trolleys; the driving screw rod is used for driving the connecting end plate to rotate; the outer circumferential surface of the connecting box body is provided with a pumping port, one end of the concrete pump pipe connecting mechanism is communicated with the pumping port, and the other end of the concrete pump pipe connecting mechanism is connected with the output end of the concrete pumping equipment.
Further, the cross section of the connecting box body is the same as that of the plugging sliding block, and the connecting box body and the plugging sliding block are rectangular in structure; the arc length of the connecting box body is equal to that of the plugging sliding block; the punching hole is a rectangular opening, and the section size of the plugging sliding block is matched with the structural size of the punching hole.
Further, the pumping port is located in the middle of the outer circumferential surface of the connection box body.
Further, the upper end of the connecting end plate is connected with the lower surface of the vault formwork through an end plate support; the upper end of the end plate support is connected with the lower surface of the vault formwork, and the lower end of the end plate support is rotatably connected with the upper end of the connecting end plate.
Further, the driving screw rod comprises a telescopic screw rod, a first connecting seat, a second connecting seat and a trolley connecting plate; the first connecting seat is fixedly arranged on the other side of the lower end of the connecting end plate, one end of the telescopic screw rod is rotationally connected with the first connecting seat, and the other end of the telescopic screw rod is rotationally connected with one end of the second connecting seat; the other end of the second connecting seat is connected with one end of the trolley connecting plate, and the other end of the trolley connecting plate is connected with the supporting arch frame of the two lining trolleys.
Further, the concrete pump pipe connecting mechanism comprises a pumping transfer pipe and a pump pipe connecting pipe; the pumping transfer pipe is an arc-shaped bent pipe, the upper end of the pumping transfer pipe is communicated with the pumping port, the lower end of the pumping transfer pipe is connected with the upper end of the pumping pipe connecting pipe, and the lower end of the pumping pipe connecting pipe is connected with the output end of the concrete pumping equipment.
Further, the concrete pump pipe connecting mechanism further comprises a pump pipe connecting flange; the pump pipe connecting flange is sleeved on the outer side of the pump pipe connecting pipe, and the pump pipe connecting flange is fixedly connected with the end part of the output end of the concrete pumping equipment through bolts.
Further, the concrete pump pipe connecting mechanism further comprises a pump pipe locking mechanism, and the pump pipe locking mechanism is arranged on the pump pipe connecting flange; and the pump pipe locking mechanism is used for locking and fixing the pump pipe connecting flange and the output end of the concrete pumping equipment.
Further, the concrete pump pipe connecting mechanism further comprises an overflow-preventing baffle; the overflow-preventing baffle is sleeved on the outer side of the pump pipe connecting pipe and is positioned above the pump pipe connecting flange.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a flatness control device for punching a top hole of a tunnel II, which is characterized in that a connecting box body is arranged at the position of the top hole of a two-lining trolley, and a plugging sliding block is arranged in the connecting box body in a matched manner; the connecting end plate and the driving screw rod are utilized to push the plugging sliding block to move in the connecting box body, so that the opening or plugging of the opposite punching jack and the pumping port is realized; when the driving screw rod drives the plugging sliding block to slide downwards through the connecting end plate so as to open the pumping port, the top-punching construction of the second lining concrete of the tunnel is realized; when the driving screw rod drives the plugging sliding block to interact up and down through the connecting end plate so that the upper end surface of the plugging sliding block is flush with the outer surface of the vault template, plugging of the opposite punching jacking hole and closing of the pumping port are realized; the device has simple structure and convenient plugging operation, avoids the phenomenon of void or bulge of the concrete at the position of punching the top hole, and effectively improves the flatness of the concrete at the position of punching the top hole; meanwhile, the edge of the punching top hole is broken in the demolding process of the two lining trolleys, the secondary trimming of the concrete surface at the punching top hole is avoided, and the construction cost is effectively reduced.
Drawings
FIG. 1 is a schematic view showing a closing state of a flatness control apparatus according to the present utility model;
FIG. 2 is a schematic view of the flatness control apparatus according to the present utility model in an on state;
fig. 3 is a schematic structural view of a driving screw in the present utility model.
The device comprises a box body 1, a plugging slide block 2, an end plate 3, a driving screw rod 4, a pumping transfer pipe 5, a pump pipe connecting pipe 6, a pump pipe connecting flange 7, a pump pipe locking mechanism 8, an overflow-preventing baffle 9, a vault form 10 and an end plate support 11; 41 telescopic screw rod, 42 first connecting seat, 43 second connecting seat, 44 trolley connecting plate.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the following specific embodiments are used for further describing the utility model in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1-3, the utility model provides a flatness control device for punching a top hole of a second lining of a tunnel, wherein the flatness control device is arranged on a second lining trolley; the flatness control device comprises a connecting box body 1, a plugging slide block 2, a connecting end plate 3, a driving screw 4 and a concrete pump pipe connecting mechanism.
The connecting box body 1 is vertically arranged below the vault formwork 10 of the secondary lining trolley, and the connecting box body 1 is of a hollow arc box-shaped structure; the upper end and the lower end of the connecting box body 1 are both open ends, and the inner arc surface of the connecting box body 1 is arranged close to one side of the vault form 10; the outer arc surface of the connecting box body 1 is provided with a pumping port which is used for being connected with concrete pumping equipment to realize the top punching construction of the secondary lining concrete of the tunnel; wherein the pumping port is positioned in the middle of the outer circumferential surface of the connecting box body 1; a top punching hole is formed in the vault formwork 10, and the top punching hole is a rectangular opening; the upper port of the connection box body 1 is communicated with a punching hole of the vault module 10.
The plugging slide block 2 is an arc-shaped steel block, and the plugging slide block 2 is arranged in the connecting box body 1 in a matching way; the cross section of the connecting box body 1 is the same as that of the plugging sliding block 2, and the connecting box body is of a rectangular structure; the arc length of the connecting box body 1 is equal to that of the plugging slide block 2, and the central line of the connecting box body 1 coincides with that of the plugging slide block 2; the peripheral side walls of the plugging slide block 2 are tightly contacted with the inner wall of the connecting box body 1 and are connected smoothly; that is, the plugging slider 2 can slide along the arc direction of the connection box 1; preferably, a lubricating medium is arranged on the contact surface of the plugging slide block 2 and the connecting box body 1.
The connecting end plate 3 is arranged at the lower port of the connecting box body 1, the upper end of the connecting end plate 3 is rotationally connected with the lower surface of the vault formwork 10, and one side of the lower end of the connecting end plate 3 is fixedly connected with the lower end of the plugging slide block 2; specifically, the upper end of the connection end plate 3 is connected with the lower surface of the vault form 10 through an end plate support 11, the upper end of the end plate support 11 is connected with the lower surface of the vault form 10, and the lower end of the end plate support 11 is rotatably connected with the upper end of the connection end plate 3; the connecting end plate 3 can rotate around a connecting point between the connecting end plate 3 and the end plate support 11 in a vertical plane where the connecting box body 1 is located and along an arc direction where a central line of the connecting box body 1 is located so as to be close to or far away from a lower port of the connecting box body 1, and further drive the plugging slide block 2 to slide up and down of the connecting box body 1, so that plugging or opening of a jacking hole or a pumping port is realized.
The driving screw rod 4 is used for driving the connecting end plate 3 to rotate around a connecting point between the connecting end plate and the end plate support 11; one end of the driving screw rod 4 is connected with the other side of the lower end of the connecting end plate 3, and the other end of the driving screw rod 4 is connected with the supporting arch of the two lining trolleys; the driving screw rod 4 comprises a telescopic screw rod 41, a first connecting seat 42, a second connecting seat 43 and a trolley connecting plate 44; the first connecting seat 42 is fixedly arranged on the other side of the lower end of the connecting end plate 3, one end of the telescopic screw 41 is rotationally connected with the first connecting seat 42, and the other end of the telescopic screw 41 is rotationally connected with one end of the second connecting seat 43; the other end of the second connecting seat 43 is connected with one end of the trolley connecting plate 44, and the other end of the trolley connecting plate 44 is connected with the supporting arch of the second lining trolley.
In the present utility model, the telescopic screw 41 includes a screw sleeve, a first screw and a second screw; the inner wall of the screw rod sleeve is provided with an internal thread, and the internal thread is divided into a first internal thread section and a second internal thread section along the axial direction of the screw rod sleeve; wherein the first internal thread segment and the second internal thread segment are in opposite rotation directions; the first screw rod is matched and connected with a first internal thread section of the screw rod sleeve, the second screw rod is matched and connected with a second internal thread section of the screw rod sleeve, and when the screw rod sleeve is driven to rotate around the axis of the screw rod sleeve, the first screw rod and the second screw rod synchronously extend or shorten; the first end of the first screw rod is arranged inside the first end of the screw rod sleeve, the second end of the first screw rod is arranged outside the first end of the screw rod sleeve, and the second end of the first screw rod is rotationally connected with the first connecting seat 42; the first end of the second screw rod is arranged inside the second end of the screw rod sleeve, the second end of the second screw rod is positioned outside the second end of the screw rod sleeve, and the second end of the second screw rod is rotationally connected with the second connecting seat 43; the rotation of the connection end plate 3 is achieved by the extension or contraction of the driving screw.
The concrete pump pipe connecting mechanism is arranged between the pumping port and the concrete pumping equipment, one end of the concrete pump pipe connecting mechanism is communicated with the pumping port, and the other end of the concrete pump pipe connecting mechanism is connected with the output end of the concrete pumping equipment; the concrete pump pipe connecting mechanism comprises a pumping transfer pipe 5, a pump pipe connecting pipe 6, a pump pipe connecting flange 7, a pump pipe locking mechanism 8 and an overflow preventing baffle 9.
The pumping transfer pipe 5 is an arc-shaped bent pipe, the upper end of the pumping transfer pipe 5 is communicated with the pumping port, the lower end of the pumping transfer pipe 5 is connected with the upper end of the pumping pipe connecting pipe 6, and the lower end of the pumping pipe connecting pipe 6 is connected with the output end of the concrete pumping equipment; the pump pipe connecting flange 7 is sleeved on the outer side of the pump pipe connecting pipe 6, and the pump pipe connecting flange 7 is fixedly connected with the end part of the output end of the concrete pumping equipment by bolts; the pump pipe locking mechanism 8 is arranged on the pump pipe connecting flange 7; the pump pipe locking mechanism 8 is used for locking and fixing the pump pipe connecting flange 7 and the output end of the concrete pumping equipment; the overflow-preventing baffle 9 is sleeved on the outer side of the pump pipe connecting pipe 6 and is positioned above the pump pipe connecting flange 7.
The working principle and the using method are as follows:
the utility model relates to a flatness control device for a tunnel secondary lining top hole, which is concretely used as follows:
assembling:
the upper port of the connecting box body 1 is communicated with the top punching port; the plugging slide block 2 is inserted into the connecting box body 1 in a matched manner, the connecting end plate 3 is connected with the vault form 10 through the end plate support 11, and the lower end face of the plugging slide block 2 at one side of the lower end of the connecting end plate 3 is fixedly connected; one end of a driving screw rod 4 is connected with the other side of the lower end of the connecting end plate 3, and the other end of the driving screw rod 4 is connected with a supporting arch of the two lining trolleys; finally, connecting the output end of the concrete pumping equipment with the pumping port through a concrete pump pipe connecting mechanism; so far, the flatness control apparatus is installed.
And (3) roof punching construction stage:
the first screw rod and the second screw rod are synchronously shortened by rotating the screw rod sleeve, and the connecting end plate 3 is driven to rotate and move towards the direction away from the lower port of the connecting box body 1; the connecting end plate 3 is far away from the rotating process, and the plugging slide block 2 is driven to slide downwards in the connecting box body 1; when the plugging slide block 2 slides downwards to a preset position, the pumping port and the top punching hole are both in an open state; then, starting concrete pumping equipment, and starting the construction of punching the secondary lining concrete of the tunnel; the pumped concrete passes through the concrete pump pipe connecting mechanism, sequentially passes through the pumping port, the upper end part of the connecting box body and the jacking hole, and enters the vault part of the tunnel.
And (3) plugging construction stage:
after the top punching construction is completed, the first screw rod and the second screw rod are synchronously stretched by rotating the screw rod sleeve, and the connecting end plate 3 is driven to rotationally move towards the direction close to the lower port of the connecting box body 1; the connection end plate 3 is close to the rotation process, and the plugging slide block is driven to slide upwards in the connection box body 1, so that the upper end face of the plugging slide block 2 is flush with the outer surface of the template around the jacking hole, the jacking hole is plugged by the upper end face of the plugging slide block 2, and the pumping port is plugged by the outer circumference face of the plugging slide block 2.
According to the utility model, the connection box body is arranged on the vault template of the two lining trolleys, the blocking slide block is arranged in the connection box body in a matched manner, and the driving screw rod is used for pushing the connection end plate to rotate, so that the blocking slide block is driven to slide up and down in the connection box body, and the blocking of the opposite punching jacking hole is realized; specifically, after the pumped concrete for the top punching construction is finished, a screw rod sleeve is selected and twisted, and the plugging slide block is driven to slide upwards by driving the connecting end plate until the upper end surface of the plugging slide block is completely closed to the top punching hole, so that the plugging of the top punching hole is realized; when the opposite punching jacking hole is plugged, the upper end face of the plugging sliding block is guaranteed to be flush with the outer surface of the vault template, the flatness of the concrete surface at the punching jacking hole is guaranteed, the phenomenon that the concrete at the punching jacking hole is empty or protruding is effectively avoided, the polishing and leveling treatment of the concrete at the opposite punching jacking hole is reduced, and the cost of tunnel construction is reduced.
According to the flatness control device for the secondary lining jacking hole of the tunnel, the jacking hole is set to be a rectangular opening, so that the unevenness of the concrete surface at the orifice and the damage of the concrete surface at the orifice in the demolding process can be effectively avoided, and the manual polishing cost when the concrete at the jacking hole is uneven is saved; the flatness of the punching holes of the two lining vaults is effectively controlled, and the phenomenon of uneven edges caused by plugging by the existing plugboard type plugging is avoided.
The above embodiment is only one of the implementation manners capable of implementing the technical solution of the present utility model, and the scope of the claimed utility model is not limited to the embodiment, but also includes any changes, substitutions and other implementation manners easily recognized by those skilled in the art within the technical scope of the present utility model.
Claims (9)
1. The flatness control device for punching the top hole of the second lining of the tunnel is characterized by being arranged on the second lining trolley; the flatness control device comprises a connecting box body (1), a plugging slide block (2), a connecting end plate (3), a driving screw rod (4) and a concrete pump pipe connecting mechanism;
the connecting box body (1) is fixedly arranged below the vault formwork (10) of the two lining trolleys, and the connecting box body (1) is of a hollow arc-shaped box-shaped structure; wherein, the upper port of the connecting box body (1) is communicated with a punching hole of the vault form (10); the plugging sliding block (2) is an arc-shaped steel block, and the plugging sliding block (2) is arranged in the connecting box body (1) in a matching way; the plugging sliding block (2) can slide along the arc direction of the connecting box body (1);
the connecting end plate (3) is arranged at the lower port of the connecting box body (1), the upper end of the connecting end plate (3) is rotationally connected with the lower surface of the vault formwork (10), and one side of the lower end of the connecting end plate (3) is fixedly connected with the lower end of the plugging sliding block (2); one end of the driving screw rod (4) is connected with the other side of the lower end of the connecting end plate (3), and the other end of the driving screw rod (4) is connected with the supporting arch of the two lining trolleys; the driving screw rod (4) is used for driving the connecting end plate (3) to rotate; the outer circumferential surface of the connecting box body (1) is provided with a pumping port, one end of the concrete pump pipe connecting mechanism is communicated with the pumping port, and the other end of the concrete pump pipe connecting mechanism is connected with the output end of the concrete pumping equipment.
2. The flatness control apparatus for a tunnel secondary lining top hole according to claim 1, characterized in that the cross-sectional shape of the connection box body (1) is the same as the cross-sectional shape of the plugging slider (2), and both are rectangular structures; the arc length of the connecting box body (1) is equal to that of the plugging sliding block (2); the top punching hole is a rectangular opening, and the cross section size of the plugging sliding block (2) is matched with the structural size of the top punching hole.
3. Flatness control device for a double-lined roof hole of a tunnel according to claim 1, characterized in that the pumping port is located in the middle of the outer circumferential surface of the connection box (1).
4. The flatness control apparatus for a tunnel secondary lining roof hole according to claim 1, characterized in that the upper end of the connecting end plate (3) is connected to the lower surface of the dome sheet (10) through an end plate support (11); the upper end of the end plate support (11) is connected with the lower surface of the vault formwork (10), and the lower end of the end plate support (11) is rotatably connected with the upper end of the connecting end plate (3).
5. The flatness control apparatus for a tunnel secondary lining roof hole according to claim 1, characterized in that the driving screw (4) includes a telescopic screw (41), a first connecting seat (42), a second connecting seat (43) and a trolley connecting plate (44); the first connecting seat (42) is fixedly arranged on the other side of the lower end of the connecting end plate (3), one end of the telescopic screw rod (41) is rotationally connected with the first connecting seat (42), and the other end of the telescopic screw rod (41) is rotationally connected with one end of the second connecting seat (43); the other end of the second connecting seat (43) is connected with one end of the trolley connecting plate (44), and the other end of the trolley connecting plate (44) is connected with the supporting arch of the two lining trolleys.
6. The flatness control apparatus for a tunnel secondary lining top hole according to claim 1, characterized in that the concrete pump pipe connection mechanism includes a pump transfer pipe (5) and a pump pipe connection pipe (6); the pumping transfer pipe (5) is an arc-shaped bent pipe, the upper end of the pumping transfer pipe (5) is communicated with the pumping port, the lower end of the pumping transfer pipe (5) is connected with the upper end of the pumping pipe connecting pipe (6), and the lower end of the pumping pipe connecting pipe (6) is connected with the output end of the concrete pumping equipment.
7. The flatness control apparatus for a tunnel secondary lining top hole according to claim 6, characterized in that the concrete pump pipe connection mechanism further comprises a pump pipe connection flange (7); the pump pipe connecting flange (7) is sleeved on the outer side of the pump pipe connecting pipe (6), and the pump pipe connecting flange (7) is fixedly connected with the end part of the output end of the concrete pumping equipment through bolts.
8. The flatness control apparatus for a tunnel secondary lining roof hole according to claim 7, characterized in that the concrete pump pipe connection mechanism further comprises a pump pipe locking mechanism (8), the pump pipe locking mechanism (8) being provided on the pump pipe connection flange (7); the pump pipe locking mechanism (8) is used for locking and fixing the pump pipe connecting flange (7) and the output end of the concrete pumping equipment.
9. The flatness control apparatus for a tunnel secondary lining roof hole according to claim 6, characterized in that the concrete pump pipe connection mechanism further comprises an overflow prevention baffle (9); the overflow-preventing baffle (9) is sleeved on the outer side of the pump pipe connecting pipe (6) and is positioned above the pump pipe connecting flange (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136976.6U CN219241935U (en) | 2023-01-17 | 2023-01-17 | Flatness control device for punching top hole on tunnel two liners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136976.6U CN219241935U (en) | 2023-01-17 | 2023-01-17 | Flatness control device for punching top hole on tunnel two liners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219241935U true CN219241935U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320136976.6U Active CN219241935U (en) | 2023-01-17 | 2023-01-17 | Flatness control device for punching top hole on tunnel two liners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219241935U (en) |
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2023
- 2023-01-17 CN CN202320136976.6U patent/CN219241935U/en active Active
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