Tunnel secondary lining construction joint back pasting water stop belt jacking device

Abstract

The utility model relates to a tunnel secondary lining construction joint back pasting water stop belt jacking device, and belongs to the technical field of tunnel construction, the tunnel secondary lining construction joint back pasting water stop belt jacking device comprises a jacking rod, a supporting rod, a pressing plate and a clamping and fixing assembly, the supporting rod is arranged on the jacking rod in a threaded mode, and the pressing plate is arranged on the supporting rod and used for abutting against a water stop belt; the clamping and fixing assembly is arranged on the ejector rod and used for being clamped and fixed to a reinforcing steel bar of a tunnel secondary lining. A constructor firstly clamps and fixes the clamping and fixing assembly to a reinforcing steel bar of a tunnel secondary lining, connection of the ejector rod and the reinforcing steel bar of the tunnel secondary lining is achieved, then the supporting rod is rotated, the supporting rod moves in the direction away from the ejector rod, the supporting rod drives the pressing plate to abut against the water stop belt, and then the water stop belt can be tightly pressed to the waterproof plate. And the construction quality of fitting of the tunnel secondary lining water stop belt and the waterproof plate is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of tunnel construction technology, and in particular to a back-sticking waterstop pressure device for a tunnel secondary lining construction joint. Background Art

[0002] The secondary lining is a cast concrete or reinforced concrete lining constructed inside the primary support during tunnel construction, which together with the primary support forms a composite lining. After the secondary lining of the tunnel is completed, in order to improve the waterproof ability, it is necessary to assemble a waterproof board on the secondary lining and paste a water stop strip at the construction joint to improve the waterproof ability of the secondary lining.

[0003] At present, the waterstop is usually adhered to the waterproof board by bonding, which has poor stability. After being subjected to pressure, the waterstop is prone to not fit tightly with the waterproof board, resulting in unqualified construction quality of the secondary lining. Utility Model Content

[0004] In order to improve the construction quality of the fitting between the tunnel secondary lining waterstop and the waterproof board, the present application provides a back-attached waterstop pressing device for the construction joint of the tunnel secondary lining.

[0005] The present application provides a tunnel secondary lining construction joint back-sticking water stop belt top pressure device adopts the following technical solution:

[0006] A device for pressing a back-attached waterstop strip of a construction joint of a secondary lining of a tunnel comprises a push rod, a support rod, a pressure plate and a fixing assembly, wherein the support rod is threadedly arranged on the push rod, the pressure plate is arranged on the support rod and is used to press against the waterstop strip, and the fixing assembly is arranged on the push rod and is used to fix to the steel bars of the secondary lining of the tunnel.

[0007] By adopting the above technical scheme, the construction workers first fasten the fastening assembly to the steel bars of the secondary lining of the tunnel to achieve the connection between the top rod and the steel bars of the secondary lining of the tunnel, and then rotate the support rod to move away from the top rod. The support rod drives the pressure plate to press against the waterstop, and the waterstop can be pressed against the waterproof board, effectively improving the construction quality of the fit between the waterstop of the secondary lining of the tunnel and the waterproof board.

[0008] Optionally, an adjusting nut is provided on the push rod, and the support rod thread is provided on the adjusting nut.

[0009] By adopting the above technical solution, through the threaded connection between the support rod and the adjusting nut, the construction personnel can remove the support rod from the top rod or screw the support rod onto the adjusting nut by rotating the support rod, thereby improving the convenience of the construction personnel in installing and removing the support rod.

[0010] Optionally, a connecting nut is provided on the pressure plate, and the support rod thread is provided on the connecting nut.

[0011] By adopting the above technical solution, construction workers rotate the pressure plate so that the support rod is threadedly connected to the connecting nut or the support rod is unscrewed from the connecting nut, thereby improving the convenience of construction workers in installing and removing the pressure plate.

[0012] Optionally, the fixing assembly includes two limiting rods, which are arranged on the top rod at intervals, and the two limiting rods and the top rod form a groove for the steel bars of the secondary lining of the tunnel to be clamped into.

[0013] By adopting the above technical solution, the construction workers move the top rod so that the steel bars of the secondary lining of the tunnel are stuck in the groove formed by the two limit rods and the top rod. The two limit rods and the top rod are in contact with the steel bars of the secondary lining of the tunnel, so that the top rod can be quickly and conveniently fixed to the steel bars of the secondary lining of the tunnel.

[0014] Optionally, the top rod and the two limit rods are all threaded steel bars.

[0015] By adopting the above technical solution, the top rod and the limit rod made of threaded steel bars are convenient for construction workers to obtain materials and make them at the construction site.

[0016] Optionally, the fixing assembly includes a first positioning rod, a connecting sleeve, a second positioning rod and a positioning piece, the first positioning rod is arranged on the top rod, the connecting sleeve is slidably arranged on the top rod, the second positioning rod is arranged on the connecting sleeve, and the positioning piece is arranged on the connecting sleeve and is used to position the connecting sleeve on the top rod.

[0017] By adopting the above technical scheme, the construction workers move the top rod so that the steel bars of the secondary lining of the tunnel are clamped between the first positioning rod and the second positioning rod, and then slide the connecting sleeve so that the second positioning rod abuts against the steel bars of the secondary lining of the tunnel, and then position the connecting sleeve on the top rod through the positioning piece. At this time, the first positioning rod and the second positioning rod clamp the steel bars of the secondary lining of the tunnel, so that the top rod can be stably fixed on the steel bars of the secondary lining of the tunnel, and it can be suitable for steel bars of the secondary lining of the tunnel of different specifications.

[0018] Optionally, the connecting sleeve includes a left locking ring, a right locking ring and a locking bolt, the left locking ring and the right locking ring are coaxially hinged on the second positioning rod, the locking bolt is rotatably passed through the left locking ring and is used to be threadedly connected to the right locking ring when the left locking ring and the right locking ring are sleeved with the push rod.

[0019] By adopting the above technical solution, the construction personnel move the second positioning rod so that the left locking ring and the right locking ring are respectively moved to the two sides of the top rod, and then rotate the left locking ring and the right locking ring close to each other and sleeved on the top rod, and then rotate the locking bolt so that the locking bolt thread is passed through the right locking ring, so that the sliding connection of the connecting sleeve on the top rod can be completed conveniently and quickly, and it is convenient to remove the connecting sleeve from the top rod later.

[0020] Optionally, the positioning member includes a positioning bolt, and the positioning bolt thread is arranged on the left locking ring and is used to abut against the push rod.

[0021] By adopting the above technical solution, the construction personnel rotate the positioning bolt so that the positioning bolt is pressed against the top rod, and the connecting sleeve can be conveniently positioned on the top rod.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The support rod drives the pressure plate to press against the waterstop, which can press the waterstop onto the waterproof board, effectively improving the construction quality of the fitting between the tunnel secondary lining waterstop and the waterproof board;

[0024] 2. The first positioning rod and the second positioning rod clamp the steel bars of the secondary lining of the tunnel, so that the top rod can be stably fixed on the steel bars of the secondary lining of the tunnel, and can be applicable to steel bars of the secondary lining of the tunnel of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the back-sticking waterstop top-pressing device for the tunnel secondary lining construction joint of Example 1 of the present application.

[0026] Figure 2 It is a structural diagram of Example 2 of the present application.

[0027] Figure numerals: 1. push rod; 2. support rod; 3. pressure plate; 4. fixing assembly; 41. limit rod; 421. first positioning rod; 422. connecting sleeve; 4221. left locking ring; 4222. right locking ring; 4223. locking bolt; 423. second positioning rod; 424. positioning piece; 4241. positioning bolt; 5. adjusting nut; 6. connecting nut. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-2 This application is described in further detail.

[0029] Example 1

[0030] The embodiment of the present application discloses a back-stick waterstop pressing device for a construction joint of a secondary lining of a tunnel.

[0031] Reference Figure 1 The back-sticking water-stop pressing device for the construction joint of the secondary lining of the tunnel comprises a top rod 1, a support rod 2, a pressing plate 3 and a fixing component 4.

[0032] Reference Figure 1, an adjusting nut 5 is welded at one end of the top rod 1. In the present embodiment, the top rod 1 is a threaded steel bar, which is convenient for construction personnel to obtain materials and make the top rod 1 at the construction site; the support rod 2 is threadedly installed on the adjusting nut 5, and the length direction of the support rod 2 is the same as the length direction of the top rod 1. A connecting nut 6 is welded on the pressure plate 3, and the support rod 2 is threadedly connected to the connecting nut 6; the fixing assembly 4 is installed on the top rod 1, and the fixing assembly 4 is used to fix to the steel bars of the secondary lining of the tunnel. The fixing assembly 4 includes two limit rods 41, and the two limit rods 41 are welded at one end of the top rod 1 away from the adjusting nut 5. The two limit rods 41 are perpendicular to the top rod 1. The two limit rods 41 are installed at intervals on the top rod 1 and form a groove with the top rod 1 for the steel bars of the secondary lining of the tunnel to be clamped. In the present embodiment, the two limit rods 41 are also threaded steel bars, which is convenient for construction personnel to obtain materials and make the limit rods 41 at the construction site.

[0033] The implementation principle of the embodiment of the present application is as follows: after the construction personnel fit the waterstop strip to the waterproof board, they move the top rod 1 so that the steel bars of the secondary lining of the tunnel are moved into the groove formed by the two limit rods 41 and the top rod 1, so that the steel bars of the secondary lining of the tunnel are in contact with the top rod 1 and the two limit rods 41. At this time, the top rod 1 can be fixed on the steel bars of the secondary lining of the tunnel, effectively improving the convenience of the construction personnel in fixing the top rod 1 on the steel bars of the secondary lining of the tunnel; then the construction personnel rotate the support rod 2 so that the support rod 2 moves away from the top rod 1, and the support rod 2 can drive the pressure plate 3 to press against the waterstop strip, and the pressure plate 3 can press the waterstop strip against the waterproof board, thereby improving the tightness of the waterstop strip on the waterproof board. This will effectively improve the construction quality of the fit between the tunnel secondary lining waterstop and the waterproof board; and through the threaded connection between the support rod 2 and the adjusting nut 5, a detachable connection between the support rod 2 and the top rod 1 is achieved. The construction personnel rotate the support rod 2 to screw the support rod 2 onto the adjusting nut 5 or unscrew the support rod 2 from the adjusting nut 5, thereby improving the convenience for the construction personnel to install and remove the support rod 2 and the top rod 1. At the same time, through the threaded connection between the support rod 2 and the connecting nut 6, the construction personnel rotate the pressure plate 3 to thread the support rod 2 onto the connecting nut 6 or remove the connecting nut 6 from the support rod 2, thereby improving the convenience for the construction personnel to install the pressure plate 3 on the support rod 2, and facilitating the construction personnel to install or replace the top rod 1, the support rod 2 and the pressure plate 3.

[0034] Example 2

[0035] Reference Figure 2, the difference between the embodiment of the present application and embodiment 1 is that: the fixing assembly 4 includes a first positioning rod 421, a connecting sleeve 422, a second positioning rod 423 and a positioning piece 424, the first positioning rod 421 is welded to the end of the push rod 1 away from the adjusting nut 5; the connecting sleeve 422 is slidably sleeved on the push rod 1 along the length direction of the push rod 1, the connecting sleeve 422 includes a left locking ring 4221, a right locking ring 4222 and a locking bolt 4223, the left locking ring 4221 is hingedly mounted on the second positioning rod 423, the right locking ring 4222 is coaxially mounted on the second positioning rod 423 with the left locking ring 4221, the inner diameter of the left locking ring 4221 and the right locking ring 4222 after being buckled with each other is larger than the outer diameter of the push rod 1, and the locking bolt 4223 is rotatably inserted into the left locking ring 4221, and a screw hole is reserved on the right locking ring 4222. The screw hole is used for the left locking ring 4221 and the right locking ring 4222 to be interlocked with each other and the locking bolt 4223 is threadedly inserted when the push rod 1 is mounted; the positioning member 424 is installed on the connecting sleeve 422, and the positioning member 424 is used to position the connecting sleeve 422 on the push rod 1. The positioning member 424 includes a positioning bolt 4241, which is threadedly inserted into the left locking ring 4221 and abuts against the push rod 1.

[0036] The implementation principle of the embodiment of the present application is as follows: the construction personnel first unfold the left locking ring 4221 and the right locking ring 4222, then move the second positioning rod 423 to make the left locking ring 4221 and the right locking ring 4222 move to the two sides of the top rod 1, and then rotate the left locking ring 4221 and the right locking ring 4222 so that the left locking ring 4221 and the right locking ring 4222 are buckled together and the top rod 1 is sleeved therein, and then screw the locking bolt 4223 so that the locking bolt 4223 is threadedly penetrated into the right locking ring 4222, so that the sliding installation of the connecting sleeve 422 on the top rod 1 can be completed conveniently and quickly, and the locking bolt 4223 can be screwed out from the right locking ring 4222, so that the connecting sleeve 422 can be conveniently and quickly removed from the top rod 1; When it is necessary to fix the top rod 1 to the steel bars of the secondary lining of the tunnel, the construction personnel move the top rod 1 so that the first positioning rod 421 and the second positioning rod 423 are respectively moved to the two sides of the steel bars of the secondary lining of the tunnel, and then slide the connecting sleeve 422 so that the first positioning rod 421 and the second positioning rod 423 are respectively pressed against the two sides of the top rod 1, and then the positioning bolt 4241 is tightened to the top rod 1, so that the connecting sleeve 422 can be conveniently positioned on the top rod 1, and then the top rod 1 can be stably fixed to the steel bars of the secondary lining of the tunnel, and the distance between the first positioning rod 421 and the second positioning rod 423 is adjusted, so that the applicability to the steel bars of the secondary lining of the tunnel of different specifications is effectively improved.

[0037] 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 back-sticking water stop pressure device for a tunnel secondary lining construction joint, characterized in that: The invention comprises a top rod (1), a support rod (2), a pressure plate (3) and a fixing assembly (4), wherein the support rod (2) is threadedly arranged on the top rod (1), the pressure plate (3) is arranged on the support rod (2) and is used to press against the water stop belt, and the fixing assembly (4) is arranged on the top rod (1) and is used to fix to the steel bars of the secondary lining of the tunnel.

2. A device for pressing back waterstop strips for construction joints of secondary lining of tunnels according to claim 1, characterized in that: The push rod (1) is provided with an adjusting nut (5), and the support rod (2) is threadedly provided on the adjusting nut (5).

3. A device for pressing back waterstop strips for construction joints of secondary lining of tunnels according to claim 1, characterized in that: The pressing plate (3) is provided with a connecting nut (6), and the support rod (2) is threadedly provided on the connecting nut (6).

4. A back-sticking water-stop pressure device for a tunnel secondary lining construction joint according to claim 1, characterized in that: The clamping assembly (4) comprises two limiting rods (41), the two limiting rods (41) being arranged on the top rod (1) at intervals, and the two limiting rods (41) and the top rod (1) forming a groove body for the steel bars of the secondary lining of the tunnel to be clamped into.

5. A back-sticking water-stop pressure device for a tunnel secondary lining construction joint according to claim 4, characterized in that: The top rod (1) and the two limit rods (41) are all threaded steel bars.

6. A device for pressing back waterstop strips for construction joints of secondary lining of tunnels according to claim 1, characterized in that: The fastening assembly (4) comprises a first positioning rod (421), a connecting sleeve (422), a second positioning rod (423) and a positioning member (424); the first positioning rod (421) is arranged on the top rod (1); the connecting sleeve (422) is slidably arranged on the top rod (1); the second positioning rod (423) is arranged on the connecting sleeve (422); and the positioning member (424) is arranged on the connecting sleeve (422) and is used to position the connecting sleeve (422) on the top rod (1).

7. A device for pressing back waterstop strips for construction joints of secondary lining of tunnels according to claim 6, characterized in that: The connecting sleeve (422) comprises a left locking ring (4221), a right locking ring (4222) and a locking bolt (4223); the left locking ring (4221) and the right locking ring (4222) are coaxially hingedly arranged on the second positioning rod (423); the locking bolt (4223) is rotatably passed through the left locking ring (4221) and is used to be threadedly connected to the right locking ring (4222) when the left locking ring (4221) and the right locking ring (4222) are sleeved with the push rod (1).

8. A device for pressing back waterstop strips for construction joints of secondary lining of tunnels according to claim 7, characterized in that: The positioning member (424) comprises a positioning bolt (4241), wherein the positioning bolt (4241) is threadedly disposed on the left locking ring (4221) and is used to abut against the top rod (1).

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