A two-lining trolley plug for tunnel fixed waterstop and construction method

Abstract

The application discloses a kind of two lining trolley plugs of tunnel fixed waterstop and construction methods, belong to tunnel trolley plug technical field.The two lining trolley plugs of the present application include first plug plate and second plug plate, wherein the first plug plate, second plug plate are connected by pressing plate, and the pressing plate is connected with the first drive assembly for driving the horizontal movement of pressing plate;The end of the first plug plate, second plug plate away from each other is respectively connected with first stop plate and second stop plate, and the first stop plate, second stop plate are connected with the second drive assembly for driving each along vertical direction movement.The first drive assembly of the present application drives the movement of pressing plate, and the side for waterstop is compressed, positioned, to ensure waterproof effect;In addition, the first stop plate is driven by the second drive assembly to abut against tunnel wall, and the second stop plate is abutted against arc steel plate mold, so that the whole plug structure is in close contact with contact surface and is stably supported, which can effectively prevent the phenomenon of slurry leakage.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tunnel trolley plug, more specifically, relates to a kind of tunnel fixed water stop two lining trolley plug and construction method. BACKGROUND

[0002] At present, in the field of two lining trolley plug construction of tunnel fixed butterfly type water stop, wood mold iron nail fixing or steel mold hole burning binding fixing is generally used. Wood mold iron nail fixing, that is, at the position of butterfly type water stop, the side wing of butterfly type water stop away from the planned pouring concrete is nailed to the inside of wood mold, so that the side wing is tightly attached to the inside of wood mold. After pouring concrete, the iron nail is removed when the mold is removed.

[0003] Steel mold hole burning binding fixing, that is, at the position of butterfly type water stop, a certain distance on the steel mold is burned, and the side wing of butterfly type water stop away from the planned pouring concrete is bound to the inside of wood mold with iron wire, so that the side wing is tightly attached to the inside of wood mold. After pouring concrete, the iron wire is loosened when the mold is removed. These two fixing methods are more complicated, need to nail or drill holes on the formwork, and the fixing effect is poor, which has great quality risks for tunnel waterproofing.

[0004] After searching, the invention patent with Chinese patent publication No. CN110778335A discloses a tunnel two lining buried type water stop installation device and construction method. The application includes an inside steel plate plug, an outside steel plate plug, a hinge, a movable hinge and a buried type water stop. One end of the hinge is fixedly connected with the inside steel plate plug, and the other side is fixedly connected with the outside steel plate plug. One end of the inside steel plate plug is connected with the two lining trolley through the movable hinge. The buried type water stop is fixed by the inside steel plate plug and the outside steel plate plug. The application can realize accurate positioning and quick installation of the water stop. However, the plug structure of the application has high requirements for the distance between the tunnel inner wall and the steel formwork, which easily leads to gap between the plug structure and the tunnel inner wall, resulting in concrete leakage during concrete pouring. SUMMARY

[0005] 1. Problems to be solved

[0006] In view of at least some problems existing in the above prior art, the present application provides a two lining trolley plug for tunnel fixed water stop and a construction method, which aims to solve the problem of poor water stop fixing effect. In addition, it also solves the problem of loose contact between the plug plate and the tunnel inner wall, which is easy to leak.

[0007] 2. Technical solutions

[0008] In order to solve the above problems, the technical solutions adopted by the present application are as follows:

[0009] The utility model discloses a two lining trolley plug of tunnel fixed waterstop, including first plug board and second plug board, wherein, the first plug board, second plug board between leave the clearance for the waterstop placement, the first plug board, second plug board are connected through the pressing plate, and the pressing plate is connected with the first drive assembly for driving the horizontal movement of pressing plate,

[0010] The end of the first plug board and the second plug board away from each other is connected with the first stop plate and the second stop plate respectively, and the first stop plate and the second stop plate are connected with the second drive assembly for driving the vertical movement of each other.

[0011] Further, the first drive assembly includes a drive rod and a push block fixedly sleeved on the drive rod, one end of the drive rod penetrates the pressing plate and is threadedly connected with a connecting nut arranged on the first plug board.

[0012] Further, the first drive assembly is arranged between the pressing plate and the first plug board and between the pressing plate and the second plug board.

[0013] Further, the second drive assembly includes a threaded sleeve and a screw threadedly connected with the threaded sleeve, and the screw is fixed through a connecting support.

[0014] Further, the second drive assembly further includes a connecting sleeve, and the end of the connecting sleeve is provided with a second bevel gear meshing with a first bevel gear on the screw.

[0015] Further, the connecting sleeve is sleeved on the drive rod of the first drive assembly, and the drive rod and the connecting sleeve are respectively connected with a first handle and a second handle.

[0016] Further, the first handle is hinged to the end of the drive rod, and the diameter of the first handle is smaller than the inner diameter of the connecting sleeve.

[0017] Further, the first stop plate and the second stop plate are provided with sliding blocks, and the first plug board and the second plug board are provided with sliding grooves matched with the sliding blocks.

[0018] Further, the top of the first stop plate is provided with a sealing strip.

[0019] The method for constructing the above-mentioned two lining trolley plug device includes the following steps:

[0020] S1, placing the first plug board and the second plug board between the tunnel wall and the arc-shaped steel plate mold;

[0021] S2, placing the butterfly-shaped waterstop between the first plug board and the second plug board, and clamping the middle section of the butterfly-shaped waterstop by the first plug board and the second plug board;

[0022] S3, install the pressing plate on the first plug plate and the second plug plate, and adjust the pressing plate to move to press one side of the butterfly-shaped water stop band;

[0023] S4, adjust the first abutting plate and the second abutting plate to move, so that the first abutting plate abuts against the tunnel wall, and the second abutting plate abuts against the arc-shaped steel plate mold.

[0024] 3, beneficial effects

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] (1) The first plug plate and the second plug plate are connected through the pressing plate, the pressing plate is connected with the first driving assembly for driving the horizontal movement of the pressing plate; the ends of the first plug plate and the second plug plate are respectively slidably connected with the first abutting plate and the second abutting plate, and the first abutting plate and the second abutting plate are both connected with the second driving assembly; during construction, the middle part of the butterfly-shaped water stop band is clamped through the gap between the first plug plate and the second plug plate, and then one side of the butterfly-shaped water stop band is pressed by the pressing plate driven by the first driving assembly, so as to ensure the fixing effect of the water stop band; then the first abutting plate is driven by the second driving assembly to abut against the tunnel wall, and the second abutting plate is driven by the second driving assembly to abut against the arc-shaped steel plate mold, so that the whole plug structure is in close contact with the contact surface and is stably supported, and the slurry leakage phenomenon can be effectively prevented.

[0027] (2) The first driving assembly includes a driving rod and a pushing block, wherein the pushing block is arranged on the driving rod and moves synchronously with the driving rod; one end of the driving rod penetrates through the pressing plate and is threadedly connected with the connecting nut arranged on the first plug plate; the driving rod can drive the pushing block to extend and retract by rotating the driving rod, so as to extrude the pressing plate and make the pressing plate move, and finally realize the pressing operation of the butterfly-shaped water stop band.

[0028] (3) The second driving assembly includes a threaded sleeve, a screw rod, and first and second conical gears meshing with each other, wherein the first conical gear is arranged on the screw rod, and the second conical gear is arranged on the connecting sleeve; by rotating the connecting sleeve, the screw rod is driven to rotate through the transmission of the conical gears, and the corresponding abutting plate is pushed by the threaded sleeve, so as to realize the close contact between the corresponding abutting plate and the contact surface. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a side view of the tunnel fixed water stop band's secondary lining trolley plug of the present embodiment;

[0030] Figure 2This is a front view of the secondary lining trolley plug of a tunnel fixing waterstop according to this embodiment;

[0031] Figure 3 This is a schematic diagram of the structure of the first driving component in this embodiment;

[0032] Figure 4 This is a schematic diagram of the structure of the second driving component in this embodiment;

[0033] Figure 5 This is a schematic diagram of the assembly between the drive rod and the connecting sleeve in this embodiment.

[0034] In the diagram: 1. First end plate; 11. Slide groove; 2. Second end plate; 3. Pressure plate; 4. First abutment plate; 41. Sliding block; 5. Second abutment plate;

[0035] 6. First drive assembly; 61. Drive rod; 62. Push block; 63. Connecting nut; 64. First handle;

[0036] 7. Second drive assembly; 71. Threaded sleeve; 72. Screw; 73. Connecting support; 74. Connecting sleeve; 75. First bevel gear; 76. Second bevel gear; 77. Second handle;

[0037] 8. Sealing strip; 9. Waterstop strip. Detailed Implementation

[0038] The present invention will be further described below with reference to specific embodiments.

[0039] like Figure 1 As shown in the figure, a secondary lining trolley plug for fixing a tunnel waterstop in this embodiment includes a first plug plate 1 and a second plug plate 2. A gap is provided between the first plug plate 1 and the second plug plate 2 for placing the middle portion of the butterfly-shaped waterstop 9.

[0040] The first end plate 1 and the second end plate 2 are connected by a pressure plate 3, and the pressure plate 3 is connected to a first drive assembly 6; the first drive assembly 6 drives the pressure plate 3 to move horizontally, squeezing and fixing one side of the butterfly-shaped waterstop 9.

[0041] One end of the first plug plate 1 is slidably connected to a first abutment plate 4, and one end of the second plug plate 2 is slidably connected to a second abutment plate 5. Both the first abutment plate 4 and the second abutment plate 5 are connected to a second driving assembly 7. This second driving assembly 7 drives the first abutment plate 4 to press against the tunnel wall and drives the second abutment plate 5 to press against the arc-shaped steel plate mold; ensuring tight contact and stable support between the entire plug structure and the contact surface, effectively preventing grout leakage. Furthermore, to further ensure the sealing effect between the first abutment plate 4 and the tunnel wall, a sealing strip 8 is provided above the first abutment plate 4.

[0042] Specifically, as shown in Figure 2 The bottom surface of the first stop plate 4 is provided with a sliding block 41, and the first plug plate 1 is provided with a sliding groove 11 corresponding to the sliding block 41. The first stop plate 4 and the first plug plate 1 are connected by the cooperation of the sliding block 41 and the sliding groove 11. The sliding connection between the second stop plate 5 and the second plug plate 2 can be realized by the same structure.

[0043] Referring to Figure 1 , Figure 3 The first driving assembly 6 is not only used to provide driving force for the movement of the pressing plate 3, but also used to connect the pressing plate 3 with the first plug plate 1 and the second plug plate 2. The specific structure of the first driving assembly 6 between the pressing plate 3 and the first plug plate 1 will be introduced below.

[0044] The first driving assembly 6 comprises a driving rod 61, a pushing block 62 and a connecting nut 63. The connecting nut 63 is arranged on the first plug plate 1. The pushing block 62 is arranged on the driving rod 61 and located on the side of the pressing plate 3 away from the water stop belt 9. The pushing block 62 moves synchronously with the driving rod 61.

[0045] One end of the driving rod 61 is provided with a threaded section matched with the connecting nut 63. The threaded section is screwed with the connecting nut 63 after passing through the pressing plate 3. The other end of the driving rod 61 is connected with a first handle 64.

[0046] Referring to Figure 1 , Figure 4 The second driving assembly 7 on the first stop plate 4 will be taken as an example. The second driving assembly 7 comprises a threaded sleeve 71, a screw rod 72 and a connecting support 73. One end of the threaded sleeve 71 is connected with the first stop plate 4, and the other end is screwed with the screw rod 72.

[0047] One end of the connecting support 73 is arranged on the first plug plate 1. The connecting support 73 is provided with a bearing, and the screw rod 72 is fixedly connected with the inner ring of the bearing, so that the screw rod 72 can rotate while being fixed.

[0048] The second driving assembly 7 further comprises a connecting sleeve 74. The end of the connecting sleeve 74 is sleeved with a second bevel gear 76, and the end of the screw rod 72 is provided with a first bevel gear 75 engaged with the second bevel gear 76. The connecting sleeve 74 is provided with a second handle 77.

[0049] Preferably, the connecting sleeve 74 is sleeved on the drive rod 61. The length of the connecting sleeve 74 must be less than the length of the drive rod 61, and it is located between the push block 62 and the first handle 64.

[0050] Furthermore, to facilitate the easy removal of the connecting sleeve 74 from the drive rod 61, the first handle 64 is hinged to the end of the drive rod 61, and the diameter of the first handle 64 is smaller than the inner diameter of the connecting sleeve 74. That is, when the first handle 64 is in a horizontal position, the connecting sleeve 74 can be removed from the drive rod 61, thereby enabling the two upper and lower second drive components 7 to share a single connecting sleeve 74.

[0051] In this embodiment, the length of the connecting sleeve 74 of the secondary lining trolley plug for fixing the waterstop in a tunnel can be determined based on the actual compression amount of the waterstop 9 when it is tightened (the amount of horizontal advancement of the pressure plate 3). This ensures that when the waterstop 9 is tightened by the pressure plate 3, the first bevel gear 75 and the second bevel gear 76 are precisely meshed with each other.

[0052] Of course, the length of the connecting sleeve 74 can be further shortened. The operator can move the position of the connecting sleeve 74 on the drive rod 61 to complete the meshing state of the first bevel gear 75 and the second bevel gear 76.

[0053] This embodiment describes a construction method for a secondary lining trolley plug for a tunnel fixing waterstop, comprising the following steps:

[0054] S1. Place the first end cap 1 and the second end cap 2 between the tunnel wall and the arc-shaped steel plate mold;

[0055] S2. Place the butterfly-shaped waterstop 9 between the first end plate 1 and the second end plate 2, and use the gap between the first end plate 1 and the second end plate 2 to clamp the middle section of the butterfly-shaped waterstop 9.

[0056] S3. Place the pressure plate 3 on the right side of the waterstop 9 (with... Figure 1 (Using the direction as a guide), pass the threaded section of the drive rod 61 through the pressure plate 3 and thread it to the connecting nut 63 on the first plug plate 1 to complete the connection between the pressure plate 3 and the first plug plate 1; in the same way, complete the connection between the pressure plate 3 and the second plug plate 2.

[0057] S4. Rotate the first handle 64, and through the threaded engagement between the drive rod 61 and the connecting nut 63, push the push block 62 to the left to push the pressure plate 3, and finally tighten the waterstop 9.

[0058] S5. Adjust the position of the connecting sleeve 74 on the drive rod 61 to ensure that the first bevel gear 75 and the second bevel gear 76 are in meshing state;

[0059] S6, rotating the second handle 77, since the screw rod 72 is limited in the bearing inner ring; through the cooperation between the screw rod 72 and the threaded sleeve 71, the threaded sleeve 71 drives the first resisting plate 4 to move upward, finally realizing the close contact between the first resisting plate 4 and the tunnel hole wall. The same method makes the second resisting plate 5 and the arc-shaped steel plate mold closely contact.

[0060] The above description of the present application and its embodiments is illustrative and not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, similar structure and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A plug for a secondary lining trolley used for fixing a waterstop in a tunnel, comprising a first plug plate (1) and a second plug plate (2), wherein, The first end plate (1) and the second end plate (2) are provided with a gap for placing the waterstop strip (9). The first end plate (1) and the second end plate (2) are connected by a pressure plate (3), which is connected to a first driving component (6) for driving the pressure plate (3) to move horizontally. The ends of the first end plate (1) and the second end plate (2) that are far apart from each other are respectively connected to a first abutment plate (4) and a second abutment plate (5), and the first abutment plate (4) and the second abutment plate (5) are connected to a second drive assembly (7) that drives each to move in the vertical direction. The first drive assembly (6) includes a drive rod (61) and a push block (62) fixedly sleeved on the drive rod (61). One end of the drive rod (61) passes through the pressure plate (3) and is threadedly connected to the connecting nut (63) provided on the first end plate (1). The second drive assembly (7) includes a threaded sleeve (71) and a screw (72) threadedly connected to the threaded sleeve (71), wherein the screw (72) is fixed by a connecting support (73); The second drive assembly (7) further includes a connecting sleeve (74), the end of which is provided with a second bevel gear (76) that meshes with the first bevel gear (75) on the screw (72). The connecting sleeve (74) is sleeved on the drive rod (61) of the first drive assembly (6), and when the pressure plate (3) presses the waterstop (9), the first bevel gear (75) and the second bevel gear (76) mesh.

2. The secondary lining trolley plug for fixing a tunnel waterstop according to claim 1, characterized in that: A first drive assembly (6) is provided between the pressure plate (3) and the first end plate (1), and between the pressure plate (3) and the second end plate (2).

3. A secondary lining trolley plug for a tunnel fixing waterstop according to claim 1 or 2, characterized in that: The drive rod (61) and the connecting sleeve (74) are respectively connected to the first handle (64) and the second handle (77).

4. The secondary lining trolley plug for fixing a tunnel waterstop according to claim 3, characterized in that: The first handle (64) is hinged to the end of the drive rod (61), and the diameter of the first handle (64) is smaller than the inner diameter of the connecting sleeve (74).

5. The secondary lining trolley plug for fixing a tunnel waterstop according to claim 4, characterized in that: The first abutment plate (4) and the second abutment plate (5) are provided with sliders (41), and the first end plate (1) and the second end plate (2) are provided with grooves (11) that cooperate with the corresponding sliders (41).

6. The secondary lining trolley plug for fixing a tunnel waterstop according to claim 5, characterized in that: A sealing strip (8) is provided on the top of the first abutment (4).

7. A method for construction using the plugging device of the secondary lining trolley as described in any one of claims 1-6, characterized in that: Includes the following steps, S1. Place the first end cap (1) and the second end cap (2) between the tunnel wall and the arc-shaped steel plate mold; S2. Place the butterfly-shaped waterstop (9) between the first end plate (1) and the second end plate (2), and use the first end plate (1) and the second end plate (2) to clamp the middle section of the butterfly-shaped waterstop (9); S3. Install the pressure plate (3) on the first end plate (1) and the second end plate (2), and adjust the pressure plate (3) to move it to press one side of the butterfly waterstop (9); S4. Adjust the first support plate (4) and the second support plate (5) to move so that the first support plate (4) abuts against the tunnel wall and the second support plate (5) abuts against the arc-shaped steel plate mold.

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