Simple steel mould trolley for sandy gravel tunnel

Abstract

The utility model discloses a simple steel mould trolley for a sandy gravel tunnel. The simple steel mould trolley comprises a middle supporting frame and a top arch arc support. The top of the middle supporting frame and the top arch arc support are provided with solid jackscrews. A side wall formwork is connected to the outer portion of the side wall of the middle supporting frame, side wall surrounding purlins are arranged on the inner side of the side wall formwork, and adjusting supporting frames are arranged between the two sides of the middle supporting frame and the side wall surrounding purlins. And a top arch template is arranged at the top of the top arch arc bracket. Compared with a traditional hydraulic steel mould trolley, the cross-domain steel mould trolley can be temporarily and directly built on site, the conveying cost of the cross-domain steel mould trolley is effectively reduced, and meanwhile compared with a scaffold building mode, the trolley is easier and more convenient to install.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction equipment, and in particular to a simple steel mold trolley for a sand and gravel tunnel. Background Art

[0002] Tunnel trolleys, also known as tunnel construction trolleys or rock drilling trolleys, are essential equipment used in tunnel and underground engineering for a variety of operations, including excavation, support, ventilation, cleaning, and inspection. Due to their flexibility, high load capacity, and high safety, they are widely used for material transportation and construction operations in confined underground spaces such as subways, tunnels, and mines.

[0003] The trolley is usually a hydraulic steel formwork trolley. The bottom of the trolley needs to be laid with tracks or a supporting walking system, which is very expensive. Especially for cross-domain construction projects, the cost of transporting the supporting trolley is very high. Of course, there is also a method of pouring the side wall first and then setting up scaffolding to line the top arch. Although this can reduce the use of trolleys and reduce transportation costs, the construction intensity is relatively high and the construction period cannot be controlled. Utility Model Content

[0004] The purpose of this application is to provide a simple steel mold trolley for a sand and gravel tunnel in order to solve the above problems.

[0005] To achieve the above objectives, the technical solution of this application is:

[0006] A simple steel formwork trolley for a gravel tunnel comprises an intermediate support frame and a top arch circular arc support; solid top screws are provided on the top of the intermediate support frame and the top arch circular arc support; the outside of the side wall of the intermediate support frame is connected to a side wall formwork, the inside of the side wall formwork is provided with a side wall purlin, and an adjustment support frame is provided between the two sides of the intermediate support frame and the side wall purlin; a top arch formwork is provided on the top of the top arch circular arc support.

[0007] Preferably, the intermediate support frame includes a longitudinal support frame and a transverse support frame, the longitudinal supports are arranged at intervals along the width direction of the tunnel, and the ends of the transverse support frames are respectively connected to the tops of the longitudinal supports distributed on both sides.

[0008] Preferably, the adjustment support frame includes a connecting member and a top screw, one end of the top screw is connected to the outer side of the longitudinal bracket, and the other end is connected to one end of the connecting member, and the other end of the connecting member is interconnected with the side wall purlin.

[0009] Preferably, the side wall purlins include side wall vertical purlins and side wall transverse purlins.

[0010] Preferably, a top arch purlin is provided between the top arch circular arc bracket and the top arch template, and the top arch purlin includes a top vertical purlin.

[0011] Preferably, a reinforcement rod is provided at the connection between the transverse support and the longitudinal support, a first adjustment rod is provided between the reinforcement rod and the transverse support, and a second adjustment rod is provided between the reinforcement rod and the longitudinal support.

[0012] Preferably, the first adjustment rod includes a first connecting member, a first adjustment frame and a second connecting member, one end of the first connecting member is connected to the transverse bracket through a first bolt, the other end of the first connecting member is screwed to one end of the first adjustment frame, one end of the second connecting member is screwed to the other end of the first adjustment frame, and the other end of the second connecting member is connected to the reinforcement rod.

[0013] Preferably, the second adjustment rod includes a third connecting member, a second adjustment frame and a fourth connecting member, one end of the third connecting member is connected to the longitudinal bracket through a second bolt, the other end of the third connecting member is screwed to one end of the second adjustment frame, one end of the fourth connecting member is screwed to the other end of the second adjustment frame, and the other end of the fourth connecting member is connected to the reinforcement rod.

[0014] The present application discloses a simple steel formwork trolley for sand and gravel tunnels. Compared with the traditional hydraulic steel formwork trolley, the present application can be temporarily built directly on site, effectively reducing the transportation cost of cross-domain steel formwork trolleys. At the same time, compared with the method of setting up scaffolding, the trolley provided by the present application is simpler and more convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is a schematic diagram of the top arch support structure in this application;

[0017] Figure 3 This is a schematic diagram of the internal structure of the end plate structure in this application;

[0018] Figure 4 This is a schematic diagram of the structure of the first adjustment rod and the second adjustment rod in this application.

[0019] In the picture:

[0020] 1. Tunnel section; 2. Longitudinal support; 3. Side wall vertical purlin; 4. Side wall horizontal purlin; 5. Reinforcement rod; 6. Horizontal support; 60. First connecting piece; 600. Clearance frame; 61. First adjustment frame; 62. Second connecting piece; 63. Fourth connecting piece; 64. Second adjustment frame; 65. Third connecting piece; 7. Solid top screw; 8. Temporary support frame; 9. Long channel steel; 10. Top screw; 11. Connector; 12. Top arch formwork; 13. Top arch arc support; 14. Reinforcement rod; 15. End plate; 16. Support rod. DETAILED DESCRIPTION

[0021] The present application will now be described in further detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present application in a schematic manner, and therefore only show the components related to the present application.

[0022] like Figure 1-4 As shown, a simple steel formwork trolley for a sand and gravel tunnel comprises an intermediate support frame and a top arch arc support 13; a solid top screw 7 is provided on the top of the intermediate support frame and the top arch arc support 13; the outside of the side wall of the intermediate support frame is connected to a side wall formwork, the inside of the side wall formwork is provided with a side wall purlin, and an adjustment support frame is provided between the two sides of the intermediate support frame and the side wall purlin; a top arch formwork 12 is provided on the top of the top arch arc support 13.

[0023] The ends of the solid top screw 7 are respectively connected to the top of the middle support frame and the bottom of the top arch arc bracket 13, thereby forming a stable support for the top arch arc bracket 13.

[0024] The side wall purlin is set between the formwork and the intermediate support frame to increase the supporting strength of the intermediate support frame on the side wall formwork.

[0025] The top arch formwork 12 can be set on the upper side of the top arch arc support 13 by welding, and is mainly used to support the top pouring concrete layer.

[0026] Compared with the traditional hydraulic steel formwork trolley, this application can be temporarily built directly on site, effectively reducing the transportation cost of the cross-domain steel formwork trolley. At the same time, compared with the method of setting up scaffolding, the trolley provided by this application is simpler and more convenient to install.

[0027] In some further embodiments, the intermediate support frame includes a longitudinal support 2 and a transverse support 6. The longitudinal supports 2 are arranged at intervals along the width direction of the tunnel section 1, and the ends of the transverse supports 6 are respectively connected to the tops of the longitudinal supports 2 distributed on both sides.

[0028] The longitudinal support 2 and the transverse support 6 can both be made of I-beams. In actual situations, the transverse support 6 can be two 20# I-beams welded together, while the vertical support can be a 20# I-beam, one in each width direction.

[0029] There are multiple intermediate support brackets along the length of the tunnel. In actual situation, there may be 20 brackets with a spacing of 80 cm.

[0030] The width of the entire intermediate support frame can be 3.9m and the height can be 3m.

[0031] In some further embodiments, the adjustable support frame includes a connecting member 11 and a top screw 10, one end of the top screw 10 is connected to the outer side of the longitudinal bracket 2, and the other end is connected to one end of the connecting member 11, and the other end of the connecting member 11 is interconnected with the side wall purlin.

[0032] The connecting member 11 can reduce the adjustment length of the top screw 10 through a certain transverse dimension, thereby avoiding the reduction in supporting performance caused by the long adjustment length of the top screw 10.

[0033] In actual situations, the top screw 10 may have a diameter of 48.3 mm. By adjusting the top screw 10 , the side wall formwork can be adjusted and removed.

[0034] In some embodiments, the top of the side wall formwork can be hinged to the end of the top arch formwork 12 to achieve adjustment of the side wall formwork.

[0035] The side wall formwork can be bamboo plywood and the top wall formwork can be steel plate.

[0036] In some further embodiments, the side wall purlin includes a side wall vertical purlin 3 and a side wall transverse purlin 4 .

[0037] The side wall vertical purlin 3 can be a steel pipe with a diameter of 48 mm, and the horizontal side wall purlin can be a square steel of 5x10 cm.

[0038] In some embodiments, the bamboo plywood used for the side wall vertical purlins 3 may be 5x10 cm square bamboo plywood, and the spacing may be between 25 cm and 30 cm.

[0039] In some further embodiments, a top arch purlin is provided between the top arch circular bracket 13 and the top arch formwork 12 , and the top arch purlin includes a top vertical purlin.

[0040] The top arch formwork 12 can be a 3mm thick steel plate, and the top vertical purlin can be made of 5x10cm square steel.

[0041] The top arch arc bracket 13 can be made of 15# I-steel.

[0042] A reinforcing rod 14 is provided on the top arch arc bracket 13 to ensure the strength of the top arch arc bracket 13 .

[0043] In some further embodiments, a reinforcement rod 5 is provided at the connection between the transverse bracket 6 and the longitudinal bracket, a first adjustment rod is provided between the reinforcement rod 5 and the transverse bracket 6, and a second adjustment rod is provided between the reinforcement rod 5 and the longitudinal bracket 2.

[0044] The reinforcement rods 5 can be steel pipes with a diameter of 48 mm. There are two groups of reinforcement rods 5.

[0045] In some other embodiments, the reinforcement rod 5 may also be a combination of a steel pipe and an I-beam.

[0046] In some other embodiments, a 20# long channel steel 9 is further provided on the top of the intermediate support frame, and the bottom of the vertical bracket is welded in the long channel steel 9.

[0047] A movable temporary support frame 8 is also provided at the bottom of the middle support frame. The temporary support frame 8 is connected to the end plate 15 welded to the bottom of the middle support frame by bolts so as to be used as a loader towing when the trolley is moving.

[0048] The end plate 15 may be a steel plate, and the length, width and height of the steel plate may be 22x12x10 cm. A support rod 16 is provided inside the end plate 15, and the support rod 16 may be an I-beam.

[0049] The bottom of the entire trolley is provided with load-bearing wheels.

[0050] In some further embodiments, the first adjusting rod includes a first connecting member 60, a first adjusting frame 61 and a second connecting member 62, one end of the first connecting member 60 is connected to the transverse bracket 6 by a first bolt, the other end of the first connecting member 60 is screwed to one end of the first adjusting frame 61, one end of the second connecting member 62 is screwed to the other end of the first adjusting frame 61, and the other end of the second connecting member 62 is connected to the reinforcement rod 5.

[0051] The threaded holes at both ends of the first adjustment frame 61 are rotated in opposite directions, so that when the first adjustment frame 61 is rotated, the first connecting member 60 and the second connecting member 62 are brought closer together to tighten the fixing rod.

[0052] In some further embodiments, the second adjustment rod includes a third connecting member 65, a second adjustment frame 64 and a fourth connecting member 63, one end of the third connecting member 65 is connected to the longitudinal bracket 2 through a second bolt, the other end of the third connecting member 65 is screwed to one end of the second adjustment frame 64, one end of the fourth connecting member 63 is screwed to the other end of the second adjustment frame 64, and the other end of the fourth connecting member 63 is connected to the reinforcement rod 5.

[0053] The threaded holes at both ends of the second adjustment frame 64 are rotated in opposite directions, so that when the second adjustment frame 64 is rotated, the third connecting member 65 and the fourth connecting member 63 are brought closer to each other, thereby tightening the fixing rod.

[0054] Since there is an intersecting portion between the first adjustment frame 61 and the second adjustment frame 64, a clearance frame 600 is provided on the first connecting member 60 and the third connecting member 65. The lengths of the clearance frames 600 provided on the corresponding first connecting member and the third connecting member 65 on the same fixed rod are inconsistent, thereby forming a limit on each other.

[0055] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of this application.

Claims

1. A simple steel mold trolley for sand and gravel tunnel, characterized in that: It comprises an intermediate support frame and a top arch arc support (13); a solid top screw (7) is provided on the top of the intermediate support frame and the top arch arc support (13); a side wall template is connected to the outside of the side wall of the intermediate support frame, a side wall purlin is provided on the inside of the side wall template, and an adjustment support frame is provided between the two sides of the intermediate support frame and the side wall purlin; a top arch template (12) is provided on the top of the top arch arc support (13).

2. The simple steel mold trolley for sand and gravel tunnel according to claim 1 is characterized in that: The intermediate support frame comprises a longitudinal support (2) and a transverse support (6), wherein the longitudinal supports (2) are arranged at intervals along the width direction of the tunnel, and the ends of the transverse supports (6) are respectively connected to the tops of the longitudinal supports (2) distributed on both sides.

3. The simple steel mold trolley for sand and gravel tunnel according to claim 2 is characterized in that: The adjustable support frame comprises a connecting member (11) and a top screw (10), one end of the top screw (10) is connected to the outer side of the longitudinal bracket (2), and the other end is connected to one end of the connecting member (11), and the other end of the connecting member (11) is interconnected with the side wall purlin.

4. The simple steel formwork trolley for sand and gravel tunnel according to claim 3 is characterized in that: The side wall purlins include side wall vertical purlins (3) and side wall transverse purlins (4).

5. The simple steel formwork trolley for sand and gravel tunnel according to claim 4, characterized in that: A top arch purlin is provided between the top arch circular bracket (13) and the top arch template (12), and the top arch purlin includes a top vertical purlin.

6. The simple steel formwork trolley for sand and gravel tunnel according to claim 5, characterized in that: A reinforcing rod (5) is provided at the connection between the transverse support (6) and the longitudinal support, a first adjusting rod is provided between the reinforcing rod (5) and the transverse support (6), and a second adjusting rod is provided between the reinforcing rod (5) and the longitudinal support (2).

7. The simple steel formwork trolley for sand and gravel tunnel according to claim 6, characterized in that: The first adjustment rod comprises a first connecting member (60), a first adjustment frame (61) and a second connecting member (62), one end of the first connecting member (60) is connected to the transverse bracket (6) through a first bolt, the other end of the first connecting member (60) is screwed to one end of the first adjustment frame (61), one end of the second connecting member (62) is screwed to the other end of the first adjustment frame (61), and the other end of the second connecting member (62) is connected to the reinforcement rod (5).

8. The simple steel formwork trolley for sand and gravel tunnel according to claim 7, characterized in that: The second adjustment rod comprises a third connecting member (65), a second adjustment frame (64) and a fourth connecting member (63), one end of the third connecting member (65) is connected to the longitudinal bracket (2) through a second bolt, the other end of the third connecting member (65) is screwed to one end of the second adjustment frame (64), one end of the fourth connecting member (63) is screwed to the other end of the second adjustment frame (64), and the other end of the fourth connecting member (63) is connected to the reinforcement rod (5).

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