Self-propelled tunnel ditch template system

Abstract

The invention discloses a self-propelled tunnel ditch template system, and relates to the technical field of tunnel ditch construction. The self-propelled tunnel ditch formwork system comprises a lifting device, a shaping formwork, an opening mechanism and a walking mechanism. Two ends of the shaping template are provided; the longitudinal section of the shaping template in the width direction is of a U-shaped structure; the opening mechanism is arranged in the U-shaped structure; a walking mechanism is arranged on one side, close to the ground, of the lifting device; the lifting device is used for lifting the shaping template and driving the opening mechanism to open the side molds on the two sides of the shaping template. Therefore, according to the embodiment of the invention, through the integrity of the shaping template, the template does not need to be spliced during the construction of the tunnel ditch; the lifting device is used for lifting the shaping formwork and driving the opening mechanism to open the side formworks on the two sides of the shaping formwork, and manual formwork erecting is not needed before pouring construction of the tunnel ditch.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel ditch construction, and in particular to a self-propelled tunnel ditch template system. Background Art

[0002] Tunnel ditch formwork is a construction tool used to form ditch in tunnel construction. It is usually made of steel, aluminum alloy or other materials, with certain strength and rigidity to ensure the stability and safety of the formwork during construction. The ditch formwork is used inside the tunnel to guide and discharge the accumulated water in the tunnel to prevent water from eroding the tunnel structure and ensure the dryness of the environment inside the tunnel. In China, the construction of tunnel projects strictly follows national standards and industry specifications, and the use of formwork is no exception. When using tunnel ditch formwork, the following steps are usually required: Formwork design: According to the tunnel design drawings and engineering requirements, design a ditch formwork of appropriate size and shape. Formwork production: Make the formwork according to the design requirements to ensure that the strength and rigidity of the formwork meet the construction needs. On-site installation: Install the formwork on the tunnel wall according to the designed position, and usually use auxiliary tools such as brackets to fix the formwork. Concrete pouring: Pour concrete in the formwork to form a ditch. Formwork removal: After the concrete reaches a certain strength, the formwork can be removed to proceed to the next construction stage. Maintenance: Maintain the poured concrete to ensure that its strength meets the use requirements.

[0003] During the pouring construction of tunnel ditches, the existing construction method is to use small-piece composite steel formwork or wooden formwork to shape the ditches, but the following technical problems will arise: repeated dismantling and installation are required during construction, and lifting equipment is required for auxiliary operations, so there are many construction processes, which reduces construction efficiency; small-piece composite steel formwork or wooden formwork is prone to damage and deformation during turnover, and the subsequent formwork maintenance cost is high. The small formwork construction error is large, the line type is difficult to straighten, the integrity is poor, and the appearance quality is difficult to control. Summary of the invention

[0004] The embodiment of the present application adopts a self-propelled tunnel gutter formwork system to solve the technical problem of reduced construction efficiency due to the need to repeatedly dismantle and install formwork during construction; small-piece combined steel formwork or wooden formwork is easily damaged and deformed during the turnover process, the subsequent formwork maintenance cost is high, the small formwork construction error is large, the line shape is difficult to straighten, the integrity is poor, and the appearance quality is difficult to control.

[0005] The embodiment of the present application provides a self-propelled tunnel ditch formwork system, which is characterized by comprising a lifting device, a shaping formwork, an opening mechanism and a walking mechanism; the lifting device is arranged at both ends of the shaping formwork; the longitudinal section of the shaping formwork along its width direction is a U-shaped structure; the opening mechanism is arranged in the U-shaped structure; a walking mechanism is arranged on the side of the lifting device close to the ground; the lifting device is used for lifting and lowering the shaping formwork and driving the opening mechanism to open the side forms on both sides of the shaping formwork.

[0006] In a possible implementation, the shaping template includes a bottom mold, a first side mold and a second side mold; the first side mold and the second side mold are respectively hinged on both sides of the bottom mold; the spreading mechanism includes a transverse lead screw and at least two supporting lead screws; one end of the two supporting lead screws is hinged to the bottom mold at intervals along the length direction of the bottom mold; one end of one of the supporting lead screws facing away from the bottom mold is hinged to the inner wall of the first side mold; the other end of the supporting lead screw facing away from the bottom mold is hinged to the inner wall of the second side mold. The lifting device is arranged at both ends of the bottom mold.

[0007] In a possible implementation, the shaping template also includes a support beam; the support beam is arranged on the side of the bottom mold facing away from the ground; one end of the two support screws are hinged to the support beam at intervals along the length direction of the support beam; and the lifting device is arranged at both ends of the support beam.

[0008] In a possible implementation, the lifting device includes a first lifting mechanism and a second lifting mechanism; the first lifting mechanism and the second lifting mechanism are respectively connected to two ends of the support beam; the first lifting mechanism and the second lifting mechanism are both provided with the walking mechanism on one side close to the ground;

[0009] In a possible implementation, the first lifting mechanism and the second lifting mechanism each include a lifting cylinder, a first lifting guide column, a column sleeve and a first latch; the column sleeve is connected to both ends of the support beam; the column sleeve is sleeved on the first lifting guide column; the first lifting guide column is provided with a plurality of first limiting holes evenly spaced along its height direction; the column sleeve is provided with a first limiting plug hole corresponding to the first limiting hole; the first latch is configured to pass through the first limiting plug hole and the first limiting hole to fix and limit the first lifting guide column and the column sleeve; a walking mechanism is provided at one end of the first lifting guide column close to the ground; a side of the column sleeve close to the ground is fixedly connected to an end of the lifting cylinder facing away from the ground.

[0010] In a possible implementation, the first lifting mechanism also includes a second latch and at least two second lifting guide columns; at least two second lifting guide columns are respectively arranged on both sides of the column sleeve; a plurality of second limiting holes are arranged at intervals along the height direction of the second lifting guide column; the column sleeve is provided with a second plug hole corresponding to the second limiting hole; the second lifting guide column and the column sleeve are fixed and limited by the latch through the second limiting hole and the second plug hole.

[0011] In a possible implementation, the walking mechanism includes a first walking assembly and a second walking assembly; the first walking assembly is arranged on a side of the first lifting mechanism close to the ground; the second walking assembly is arranged on a side of the second lifting mechanism close to the ground.

[0012] In a possible implementation, the first traveling assembly and the second traveling assembly both include a frame and traveling wheels; the frame is arranged above the traveling wheels; and a side of the frame facing away from the ground is fixedly connected to an end of the first lifting guide column close to the ground.

[0013] In a possible implementation, the first walking assembly further includes auxiliary wheels;

[0014] The auxiliary wheel is arranged at one end of the second lifting guide column close to the ground.

[0015] In a possible implementation, it further includes an anti-scratch wheel; the anti-scratch wheel is arranged on both sides of the outer wall of the column sleeve of the second lifting mechanism.

[0016] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects:

[0017] The embodiment of the present application realizes that the template does not need to be spliced ​​during tunnel ditch construction through the integrity of the fixed template, which reduces the construction process, makes the construction process safer, reduces the number of construction personnel, and reduces the construction cost. The lifting device is used to lift the fixed template and drive the expansion mechanism to expand the side templates on both sides of the fixed template, so that the tunnel ditch does not need to be manually supported before pouring construction, which also reduces the construction process, makes the construction process safer, reduces the number of construction personnel, and reduces the construction cost. By providing a walking device for the self-propelled tunnel ditch template system, the tunnel ditch template system can move by itself, and the template components can be transported without auxiliary lifting operations; the self-propelled tunnel ditch template system of the embodiment of the present application does not need to be disassembled and installed during construction, so there will be no messy stacking due to too many components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the structure of a self-propelled tunnel ditch template system provided in an embodiment of the present application;

[0020] Figure 2 A left view of the self-propelled tunnel ditch template system provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of the shaping template and the opening mechanism provided in the embodiment of the present application;

[0022] Figure 4 A top view of the self-propelled tunnel ditch formwork system provided in an embodiment of the present application.

[0023] Figure markings: 1-lifting device; 11-first lifting mechanism; 111-lifting cylinder; 112-first lifting guide column; 1121-first limiting hole; 113-column sleeve; 1131-first plug hole; 1132-second plug hole; 114-second lifting guide column; 1141-second limiting hole; 12-second lifting mechanism; 121-anti-scratch wheel; 2-forming template; 21-bottom mold; 22-first side mold; 23-second side mold; 24-support beam; 3-opening mechanism; 31-transverse screw; 32-support screw; 4-traveling mechanism; 41-first walking assembly; 411-frame; 412-traveling wheel; 413-auxiliary wheel; 42-second walking assembly; 5-anti-scratch wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] In the description of the embodiments of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the self-propelled tunnel ditch formwork system provided in the embodiment of the present application is characterized in that it includes a lifting device 1, a shaping template 2, an expansion mechanism 3 and a walking mechanism 4. The lifting device 1 is arranged at both ends of the shaping template 2. The longitudinal section of the shaping template 2 along its width direction is a U-shaped structure. The expansion mechanism 3 is arranged in the U-shaped structure. A walking mechanism 4 is arranged on the side of the lifting device 1 close to the ground. The lifting device 1 is used for lifting and lowering the shaping template 2 and driving the expansion mechanism 3 to expand the side molds on both sides of the shaping template 2.

[0027] The self-propelled tunnel ditch formwork system provided in the embodiment of the present application includes a lifting device 1, a shaping template 2, a propping mechanism 3 and a walking mechanism 4. The lifting device 1 is arranged at both ends of the shaping template 2. The longitudinal section of the shaping template 2 along its width direction is a U-shaped structure. The propping mechanism 3 is arranged in the U-shaped structure. A walking mechanism 4 is arranged on the side of the lifting device 1 close to the ground. The lifting device 1 is used for lifting and lowering the shaping template 2 and driving the propping mechanism 3 to prop up the side forms on both sides of the shaping template 2. Through the integrity of the shaping template 2, it is achieved that the template does not need to be spliced ​​during the construction of the tunnel ditch, which reduces the construction process, makes the construction process safer, reduces the number of construction personnel, and reduces the construction cost. The lifting device 1 is used to lift the shaping template 2 and drive the propping mechanism 3 to prop up the side forms on both sides of the shaping template 2, so that the tunnel ditch does not need to be manually supported before pouring construction, which also reduces the construction process, makes the construction process safer, reduces the number of construction personnel, and reduces the construction cost. By providing a walking device for the self-propelled tunnel ditch formwork system, the tunnel ditch formwork system can move by itself, and the formwork components can be transported without auxiliary lifting operations. The self-propelled tunnel ditch formwork system of the embodiment of the application does not need to be disassembled and installed during construction, so there will be no messy stacking due to too many components.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the shaping template 2 provided in the embodiment of the present application includes a bottom mold 21, a first side mold 22 and a second side mold 23. The first side mold 22 and the second side mold 23 are respectively hinged on both sides of the bottom mold 21. The expansion mechanism 3 includes a transverse screw 31 and at least two supporting screws 32. One end of the two supporting screws 32 is hinged to the bottom mold 21 at intervals along the length direction of the bottom mold 21. One end of one of the supporting screws 32 facing away from the bottom mold 21 is hinged to the inner wall of the first side mold 22. The other end of the supporting screw 32 facing away from the bottom mold 21 is hinged to the inner wall of the second side mold 23. The lifting device 1 is arranged at both ends of the bottom mold 21.

[0029] In the embodiment of the present application, the shaping template 2 is adjusted to a suitable height by a lifting device 1. Since the shaping template 2 includes a bottom mold 21, a first side mold 22 and a second side mold 23. The first side mold 22 and the second side mold 23 are respectively hinged on both sides of the bottom mold 21. The opening mechanism 3 includes a transverse screw 31 and at least two supporting screws 32. One end of the two supporting screws 32 is hinged to the bottom mold 21 at intervals along the length direction of the bottom mold 21. One end of one of the supporting screws 32 that is away from the bottom mold 21 is hinged to the inner wall of the first side mold 22. The other end of the supporting screw 32 that is away from the bottom mold 21 is hinged to the inner wall of the second side mold 23. The lifting device 1 is arranged at both ends of the bottom mold 21. Therefore, the bottom mold 21, the first side mold 22 and the second side mold 23, one side of the bottom mold 21 in the length direction is hinged with the first side mold 22, and the other side of the bottom mold 21 in the length direction is hinged with the second side mold 23, so that the template does not need to be spliced ​​during the tunnel ditch construction, which reduces the construction process, makes the construction process safer, reduces the number of construction personnel, and reduces the construction cost. When the bottom mold 21 is subjected to force, the transverse screw 31 is released, and the first side mold 22 and the second side mold 23 are spread apart by the support screw 32, and then the length of the transverse screw 31 is adjusted and fixed so that the first side mold 22 and the second side mold 23 reach a suitable angle. During pouring, the transverse screw 31 and the support screw 32 have a fixed support function for the first side mold 22 and the second side mold 23. Thereby, it is also achieved that there is no need for manual formwork before pouring construction of the tunnel ditch, which also reduces the construction process, makes the construction process safer, reduces the number of construction personnel, and reduces the construction cost.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, the shaping template 2 provided in the embodiment of the present application further includes a support beam 24. The support beam 24 is arranged on the side of the bottom mold 21 away from the ground. One end of two support screws 32 is hinged to the support beam 24 at intervals along the length direction of the support beam 24. The lifting device 1 is arranged at both ends of the support beam 24.

[0031] The shaping template 2 provided in the embodiment of the present application further includes a support beam 24. The support beam 24 is arranged on the side of the bottom mold 21 away from the ground. One end of two support screws 32 are hinged to the support beam 24 at intervals along the length direction of the support beam 24. The lifting device 1 is arranged at both ends of the support beam 24. Therefore, due to the arrangement of the support beam 24, when the force of the lifting device 1 acts on the bottom mold 21, it is not easy to deform the bottom mold 21. The force is transmitted to the support screw 32 through the support beam 24, and then the first side mold 22 and the second side mold 23 are opened.

[0032] like Figure 1 , Figure 2 and Figure 4As shown, the lifting device 1 provided in the embodiment of the present application includes a first lifting mechanism 11 and a second lifting mechanism 12. The first lifting mechanism 11 and the second lifting mechanism 12 are respectively connected to both ends of the support beam 24. The first lifting mechanism 11 and the second lifting mechanism 12 are both provided with a walking mechanism 4 on one side close to the ground.

[0033] In the embodiment of the present application, the lifting device 1 includes a first lifting mechanism 11 and a second lifting mechanism 12. The first lifting mechanism 11 and the second lifting mechanism 12 are respectively connected to the two ends of the support beam 24. The first lifting mechanism 11 and the second lifting mechanism 12 are both provided with a walking mechanism 4 on the side close to the ground. Therefore, the height of both ends of the shaping template 2 can be adjusted, and the slope of the shaping template 2 can be quickly adjusted to the applicable requirements through the first lifting mechanism 11 and the second lifting mechanism 12 at both ends, and the stability of the self-propelled tunnel ditch template system can be ensured.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the first lifting mechanism 11 and the second lifting mechanism 12 provided in the embodiment of the present application both include a lifting cylinder 111, a first lifting guide column 112, a column sleeve 113 and a first latch. The column sleeve 113 is connected to both ends of the support beam 24. The column sleeve 113 is sleeved on the first lifting guide column 112. The first lifting guide column 112 is evenly spaced along its height direction and has a plurality of first limiting holes 1121. The column sleeve 113 is provided with a first plug hole 1131 corresponding to the first limiting hole 1121. The first latch is configured to pass through the first plug hole 1131 and the first limiting hole 1121 to fix and limit the first lifting guide column 112 and the column sleeve 113. A walking mechanism 4 is provided at one end of the first lifting guide column 112 close to the ground. The side of the column sleeve 113 close to the ground is fixedly connected to the end of the lifting cylinder 111 away from the ground.

[0035] The first lifting mechanism 11 and the second lifting mechanism 12 of the embodiment of the present application both include a lifting cylinder 111, a first lifting guide column 112, a column sleeve 113 and a first latch. The column sleeve 113 is connected to both ends of the support beam 24. The column sleeve 113 is sleeved on the first lifting guide column 112. The first lifting guide column 112 is evenly spaced along its height direction with a plurality of first limiting holes 1121. The column sleeve 113 is provided with a first plug hole 1131 corresponding to the first limiting hole 1121. The first latch is configured to pass through the first plug hole 1131 and the first limiting hole 1121 to fix and limit the first lifting guide column 112 and the column sleeve 113. A walking mechanism 4 is provided at one end of the first lifting guide column 112 close to the ground. The side of the column sleeve 113 close to the ground is fixedly connected to the end of the lifting cylinder 111 away from the ground. Therefore, when the first lifting mechanism 11 and the second lifting mechanism 12 are lifted and lowered by the lifting cylinder 111, the lifting device 1 and the finalized template 2 will not fall over, making the entire self-propelled tunnel ditch template system more integrated and more stable. When the lifting cylinder 111 adjusts the height of the entire device to a suitable height, the first lifting guide column 112 and the column sleeve 113 are fixed and limited by the first limit hole 1121 and the first plug hole 1131 with a first latch. This can prevent the lifting cylinder 111 from slowly retracting due to long-term force, thereby causing the finalized template 2 to shift in position.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, the first lifting mechanism 11 provided in the embodiment of the present application further includes a second latch and at least two second lifting guide columns 114. At least two second lifting guide columns 114 are respectively arranged on both sides of the column sleeve 113. A plurality of second limiting holes 1141 are arranged at intervals along the height direction of the second lifting guide column 114. The column sleeve 113 is provided with a second plug hole 1132 corresponding to the second limiting hole 1141. The second latch is configured to pass through the second limiting hole 1141 and the second plug hole 1132 to fix the second lifting guide column 114 and the column sleeve 113.

[0037] In the embodiment of the present application, the first lifting mechanism 11 also includes a second latch and at least two second lifting guide columns 114. At least two second lifting guide columns 114 are respectively arranged on both sides of the column sleeve 113. A plurality of second limiting holes 1141 are arranged at intervals along the height direction of the second lifting guide column 114. The column sleeve 113 is provided with a second plug hole 1132 corresponding to the second limiting hole 1141. The second latch is configured to pass through the second limiting hole 1141 and the second plug hole 1132 to fix the second lifting guide column 114 and the column sleeve 113. Therefore, the second lifting guide column 114 can assist the first lifting guide column 112 to prevent the lifting device 1 and the shaping template 2 from tipping over, so that the integrity of the entire self-propelled tunnel ditch template system is higher and the stability is stronger. The second lifting guide column 114 and the column sleeve 113 are fixed and limited by the second latch through the second limiting hole 1141 and the second plug hole 1132. It can prevent the lifting cylinder 111 from slowly retracting due to long-term stress, thereby causing the position of the shaping template 2 to shift. It can prevent the lifting cylinder 111 from slowly retracting due to long-term pressure, thereby causing the position of the shaping template 2 to shift.

[0038] like Figure 1 and Figure 2 As shown, the walking mechanism 4 provided in the embodiment of the present application includes a first walking assembly 41 and a second walking assembly 42. The first walking assembly 41 is arranged on the side of the first lifting mechanism 11 close to the ground. The second walking assembly 42 is arranged on the side of the second lifting mechanism 12 close to the ground.

[0039] In the embodiment of the present application, the walking mechanism 4 includes a first walking component 41 and a second walking component 42. The first walking component 41 is arranged on the side of the first lifting mechanism 11 close to the ground. The second walking component 42 is arranged on the side of the second lifting mechanism 12 close to the ground. Therefore, the entire self-propelled tunnel ditch formwork system is moved at the construction site, saving manpower and material resources. Since the self-propelled tunnel ditch formwork system is provided with walking wheels 412 at both ends, the front and rear supports of the self-propelled tunnel ditch formwork system are balanced when it is moving, and a driving motor can be provided on the first walking component 41 or the second walking component 42, so that the self-propelled tunnel ditch formwork system can move automatically, saving more manpower and material resources.

[0040] like Figure 1 and Figure 2 As shown, in the embodiment of the present application, the first walking assembly 41 and the second walking assembly 42 both include a frame 411 and a walking wheel 412. The frame 411 is arranged above the walking wheel 412. The side of the frame 411 facing away from the ground is fixedly connected to the end of the first lifting guide column 112 close to the ground. Therefore, the structure of the embodiment of the present application is simple, which is convenient for assembling the self-propelled tunnel ditch formwork system.

[0041] like Figure 1 and Figure 2 As shown, the first walking assembly 41 provided in the embodiment of the present application further includes an auxiliary wheel 413. The auxiliary wheel 413 is arranged at one end of the second lifting guide column 114 close to the ground.

[0042] In the embodiment of the present application, the first walking assembly 41 further includes an auxiliary wheel 413. The auxiliary wheel 413 is arranged at one end of the second lifting guide column 114 close to the ground. Therefore, the self-propelled tunnel ditch template system moves more smoothly and will not fall over due to balance problems.

[0043] like Figure 1 and Figure 4 As shown, the self-propelled tunnel water channel template system provided in the embodiment of the present application further includes an anti-rubbing wheel 5. The anti-rubbing wheel 5 is arranged on both sides of the outer wall of the column sleeve 113 of the second lifting mechanism 12.

[0044] The self-propelled tunnel ditch formwork system provided in the embodiment of the present application further includes anti-scratch wheels 5. The anti-scratch wheels 5 are arranged on both sides of the outer wall of the column sleeve 113 of the second lifting mechanism 12. When the self-propelled tunnel ditch formwork system moves in the poured ditch, the anti-scratch wheels 121 can reserve a gap between the self-propelled tunnel ditch formwork system and the side walls of the ditch, and the anti-scratch wheels 121 can slide to prevent the self-propelled tunnel ditch formwork system from getting stuck with the side walls on both sides of the ditch.

[0045] When in use, the shaping template 2 is adjusted to a suitable height through the lifting cylinder 111, and the first lifting guide column 112 and the second lifting guide column 114 and the column sleeve 113 are fixed and limited by the first pin through the first limiting hole 1121 and the first plug hole 1131, and the second plug hole 1132 and the second limiting hole 1141 are fixed and limited by the second pin. Then, the first side mold 22 and the second side mold 23 are opened through the transverse screw 31 and the support screw 32, and the length of the transverse screw 31 is adjusted and fixed. After the positioning is confirmed, the concrete is poured. 6-8 hours after the concrete pouring is completed, first loosen the horizontal screw 31 and the supporting screw 32, and then lift the front and rear hydraulic lifting cylinders 111. After rising to a certain height, the first lifting guide column 112 and the second lifting guide column 114 and the column sleeve 113 are fixed with the first pin through the first limiting hole 1121 and the first plug hole 1131, and the second plug hole 1132 and the second limiting hole 1141 are fixed with the second pin; then the driving motor drives the walking mechanism 4 to slowly move the self-propelled tunnel ditch formwork system to the next construction section.

[0046] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0047] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A self-propelled tunnel ditch formwork system, characterized in that: It comprises a lifting device (1), a shaping template (2), an opening mechanism (3) and a walking mechanism (4); The lifting device (1) is arranged at both ends of the shaping template (2); The longitudinal section of the shaping template (2) along its width direction is a U-shaped structure; The expansion mechanism (3) is arranged in the U-shaped structure; The lifting device (1) is provided with a walking mechanism (4) on a side close to the ground; The lifting device (1) is used for lifting and lowering the shaping template (2) and driving the spreading mechanism (3) to spread the side templates on both sides of the shaping template (2).

2. The self-propelled tunnel ditch formwork system according to claim 1 is characterized in that: The shaping template (2) comprises a bottom mold (21), a first side mold (22) and a second side mold (23); The first side mold (22) and the second side mold (23) are respectively hinged to two sides of the bottom mold (21); The spreading mechanism (3) comprises a transverse screw (31) and at least two supporting screws (32); One ends of the two supporting screws (32) are hinged to the bottom mold (21) at intervals along the length direction of the bottom mold (21); One end of one of the support screws (32) facing away from the bottom mold (21) is hinged to the inner wall of the first side mold (22); One end of the other supporting screw (32) facing away from the bottom mold (21) is hinged to the inner wall of the second side mold (23); The lifting device (1) is arranged at both ends of the bottom mold (21).

3. The self-propelled tunnel ditch formwork system according to claim 2 is characterized in that: The shaping template (2) also includes a support beam (24); The support beam (24) is arranged on a side of the bottom mold (21) facing away from the ground; One ends of the two support screws (32) are hinged to the support beam (24) at intervals along the length direction of the support beam (24); The lifting device (1) is arranged at both ends of the support beam (24).

4. The self-propelled tunnel ditch formwork system according to claim 3 is characterized in that: The lifting device (1) comprises a first lifting mechanism (11) and a second lifting mechanism (12); The first lifting mechanism (11) and the second lifting mechanism (12) are respectively connected to two ends of the support beam (24); The walking mechanism (4) is provided on the side of the first lifting mechanism (11) and the second lifting mechanism (12) close to the ground.

5. The self-propelled tunnel ditch formwork system according to claim 4, characterized in that: The first lifting mechanism (11) and the second lifting mechanism (12) both comprise a lifting cylinder (111), a first lifting guide column (112), a column sleeve (113) and a first latch; The column sleeve (113) is connected to both ends of the support beam (24); The column sleeve (113) is sleeved on the first lifting guide column (112); The first lifting guide column (112) is evenly spaced with a plurality of first limiting holes (1121) along its height direction; The column sleeve (113) is provided with a first insertion hole (1131) corresponding to the first limiting hole (1121); The first latch is configured to pass through the first insertion hole (1131) and the first limiting hole (1121) to fix and limit the first lifting guide column (112) and the column sleeve (113); A walking mechanism (4) is provided at one end of the first lifting guide column (112) close to the ground; The side of the column sleeve (113) close to the ground is fixedly connected to the end of the lifting cylinder (111) away from the ground.

6. The self-propelled tunnel ditch formwork system according to claim 5, characterized in that: The first lifting mechanism (11) further comprises a second latch and at least two second lifting guide columns (114); At least two of the second lifting guide columns (114) are respectively arranged on both sides of the column sleeve (113); A plurality of second limiting holes (1141) are arranged at intervals along the height direction of the second lifting guide column (114); The column sleeve (113) is provided with a second insertion hole (1132) corresponding to the second limiting hole (1141); The second latch pin is configured to pass through the second limiting hole (1141) and the second insertion hole (1132) to fix and limit the second lifting guide column (114) and the column sleeve (113).

7. The self-propelled tunnel ditch formwork system according to claim 6, characterized in that: The walking mechanism (4) comprises a first walking assembly (41) and a second walking assembly (42); The first walking assembly (41) is arranged on a side of the first lifting mechanism (11) close to the ground; The second walking assembly (42) is arranged on a side of the second lifting mechanism (12) close to the ground.

8. The self-propelled tunnel ditch formwork system according to claim 7, characterized in that: The first traveling assembly (41) and the second traveling assembly (42) both comprise a frame (411) and traveling wheels (412); The vehicle frame (411) is arranged above the running wheels (412); The side of the vehicle frame (411) facing away from the ground is fixedly connected to an end of the first lifting guide column (112) close to the ground.

9. The self-propelled tunnel ditch formwork system according to claim 8, characterized in that: The first walking assembly (41) further includes auxiliary wheels (413); The auxiliary wheel (413) is arranged at one end of the second lifting guide column (114) close to the ground.

10. The self-propelled tunnel ditch formwork system according to any one of claims 5 to 9, characterized in that: Also includes an anti-scratch wheel (5); The anti-scratch wheels (5) are arranged on both sides of the outer wall of the column sleeve (113) of the second lifting mechanism (12).

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