A support platform for tunnel construction

Abstract

The present application relates to a support platform for tunnel construction, belonging to the field of tunnel construction equipment. It includes a chassis, a cylinder, a main support assembly, and a rotation drive assembly. The cylinder is parallel to the first direction and fixedly connected to the chassis. A plurality of the main support assemblies are spaced apart in the first direction. The main support assembly includes a main support plate, and the upper plate surface of the main support plate is perpendicular to the first direction. In the first direction, an avoidance gap is formed between the main support plates in two adjacent main support assemblies. The main support plate is rotatably connected to the cylinder about a first axis, and the first axis coincides with the central axis of the cylinder. A corresponding rotation drive assembly is connected between each main support plate and the cylinder to drive the main support plate to rotate about the first axis. The present application has the effect of facilitating the support platform to pass through a narrow tunnel.

Description

Technical Field

[0001] The present application relates to the field of tunnel construction equipment, and in particular to a support platform for tunnel construction. Background Art

[0002] During the tunnel construction process, as one of the key equipment, the main function of the support platform is to provide a stable working position for construction workers, while ensuring safety and convenience during the construction process; traditional support platforms mostly adopt a rectangular full hall frame structure, which is simple in structure, low in cost, and can meet basic requirements in conventional construction environments. However, with the diversification of construction environments and the improvement of construction efficiency requirements, traditional support platforms can no longer fully meet the needs of modern tunnel construction.

[0003] In the prior art, in order to solve the problem of limited standing range of construction workers, the commonly adopted method is to increase the overall size of the support platform to expand the working area; however, this method will cause the overall volume of the equipment to be too large, and during the construction process, there may be other construction equipment placed in some sections of the tunnel, which will make it difficult for the support platform to pass through.

[0004] In summary, the above-mentioned related technologies increase the overall rectangular size, resulting in difficulty in adapting to transportation in narrow channels. Therefore, it is an urgent problem to provide a support platform that can facilitate passing through narrow tunnels. Summary of the Invention

[0005] In order to facilitate the support platform to pass through narrow tunnels, the present application provides a support platform for tunnel construction.

[0006] The support platform for tunnel construction provided by the present application adopts the following technical solutions:

[0007] A support platform for tunnel construction, comprising:

[0008] A chassis;

[0009] A cylinder, the cylinder being parallel to the first direction and fixedly connected to the chassis; and a plurality of main support components, the plurality of main support components being spaced apart in the first direction, and the main support components comprising:

[0010] A main support plate, the upper plate surface of the main support plate being perpendicular to the first direction; in the first direction, an avoidance gap is formed between the main support plates in two adjacent main support components;

[0011] The main support plate is rotatably connected to the cylinder about a first axis, and the first axis coincides with the central axis of the cylinder;

[0012] It further comprises:

[0013] A rotation drive assembly is correspondingly connected between each of the main support plates and the cylinder for driving the main support plate to rotate about the first axis.

[0014] By adopting the above technical solution, the main support plate is rotationally connected to the cylinder about the first axis, and the main support plate is driven to rotate by the rotation drive assembly, so that the angle of the main support plate can be adjusted to meet the construction requirements at different positions; and when multiple main support plates are adjusted to the same vertical column, the floor area of the entire support platform in the horizontal direction can be effectively reduced, facilitating the support platform to pass through the narrow area of the tunnel. In addition, an avoidance gap is formed between the main support plates in adjacent two main support assemblies, and this gap can be used to accommodate construction workers and place items such as working tools, improving the space utilization rate.

[0015] Optionally, it further includes:

[0016] An auxiliary support assembly, and the auxiliary support assembly includes:

[0017] An auxiliary support ring sleeved on the outer periphery of the chassis, with a weight reduction gap left between the inner peripheral wall of the auxiliary support ring and the outer peripheral wall of the chassis; and a connecting rod fixedly connected between the auxiliary support ring and the chassis.

[0018] By adopting the above technical solution, the auxiliary support ring is sleeved on the outer periphery of the chassis and fixedly connected to the chassis through the connecting rod, thus forming a stable support structure. The weight reduction gap between the auxiliary support ring and the chassis can effectively reduce the overall weight and improve the portability of the support platform. The setting of the connecting rod further enhances the connection strength between the chassis and the auxiliary support ring, improves the stability of the entire support platform, prevents overturning during construction, and ensures the safety of construction workers.

[0019] Optionally, the auxiliary support assembly further includes:

[0020] A plurality of casters connected to the auxiliary support ring.

[0021] By adopting the above technical solution, a stable support structure is formed between the auxiliary support ring and the chassis. At the same time, by arranging a plurality of casters on the auxiliary support ring, the entire support platform has good mobility. When the construction position needs to be adjusted, the position transformation can be easily achieved by pushing the support platform, greatly improving the construction efficiency and flexibility.

[0022] Optionally, it further includes an angle adjustment assembly, and the angle adjustment assembly includes:

[0023] A plurality of jacks, and the jacking direction of the jacks is parallel to the first direction;

[0024] A lifting plate fixedly connected to the output end of the jack; the chassis is rotatably connected to the lifting plate through a first rotating shaft, and the first rotating shaft is coaxial with the cylinder; and a first motor connected between the lifting plate and the first rotating shaft to drive the chassis to rotate around a first axis by the first motor;

[0025] One end of the jack away from the chassis is the supporting end, and one end of the caster away from the auxiliary support ring is the landing end;

[0026] When the jack is at its shortest length, in the first direction, the supporting end of the jack is located on the side of the landing end of the caster closer to the auxiliary support ring;

[0027] When the jack is at its maximum length, in the first direction, the supporting end of the jack is located on the side of the landing end of the caster away from the auxiliary support ring.

[0028] By adopting the above technical solutions, when the jack lifts the lifting plate, the chassis is raised accordingly and the casters leave the ground, facilitating the rotation of the chassis. The first motor drives the chassis to rotate around the first axis, enabling the construction personnel to flexibly adjust the overall angle of the support platform according to actual needs to meet the requirements of different construction positions or terrains. In addition, the stroke of the jack is reasonably designed, and its shortest and maximum lengths correspond to different positions of the landing end of the caster respectively, ensuring a smooth transition during the angle adjustment process.

[0029] Optionally, the rotation driving assembly includes:

[0030] A first bevel gear coaxially sleeved and connected to the cylinder, and the first bevel gear is fixedly connected to the main support plate;

[0031] A second bevel gear meshing with the first bevel gear; and a second motor fixedly connected to the cylinder, and the second bevel gear is connected to the output shaft of the second motor to drive the second bevel gear to rotate by the second motor.

[0032] By adopting the above technical solutions, the first bevel gear is coaxially sleeved and connected to the cylinder and fixedly connected to the main support plate, which can ensure the synchronous rotation of the main support plate with the first bevel gear; the second bevel gear meshes with the first bevel gear, enabling the rotation of the first bevel gear to be transmitted to the main support plate through gear transmission; the second motor is fixedly connected to the cylinder and drives the second bevel gear to rotate, thus realizing precise control of the rotation of the main support plate around the first axis.

[0033] Optionally, it further includes an end support assembly, and the end support assembly includes:

[0034] The vertical rod is parallel to the first direction. One end of the vertical rod is connected to the end of the main support plate away from the cylinder, so that the vertical rod rotates synchronously with the main support plate around the first axis. The other end is rotatably connected to the auxiliary support ring around the first axis.

[0035] The distances between the vertical rods and the cylinder on each main support plate are different. When multiple vertical rods are located on the same radius of the virtual circle, adjacent two vertical rods do not interfere with each other.

[0036] By adopting the above technical solutions, one end of the vertical rod is connected to the end of the main support plate away from the cylinder, and the other end is rotatably connected to the auxiliary support ring around the first axis, which can assist in supporting the main support plate and improve the stability of the main support plate. At the same time, since the distances between the vertical rods and the cylinder on each main support plate are different, and multiple vertical rods do not interfere with each other when located on the same radius of the virtual circle, it avoids collisions or jams during the rotation of multiple main support plates with the vertical rods, ensuring the normal operation of the entire support platform.

[0037] Optionally, the main support assembly further includes:

[0038] An extension plate, the upper plate surface of the extension plate is perpendicular to the first direction; in the first direction, the extension plate is located on the side of the main support plate close to the chassis;

[0039] The extension plate is slidably connected to the main support plate along the diameter direction of the virtual circle, so that the extension plate can be adjusted between a retracted posture and an extended posture; the virtual circle is coaxial with the cylinder;

[0040] When the extension plate is in the retracted posture, in the first direction, the extension plate is disposed opposite to the main support plate;

[0041] During the process that the extension plate moves along the main support plate towards the side away from the cylinder, the extension plate changes from the retracted posture to the extended posture, so as to increase the total length of the extension plate and the main support plate on the diameter of the virtual circle.

[0042] By adopting the above technical solutions, an extension plate is added to the main support assembly, and the extension plate can be adjusted between a retracted posture and an extended posture. When the extension plate is in the retracted posture, it is disposed opposite to the main support plate and does not occupy extra space, facilitating the compact layout of the overall structure. When it is necessary to expand the standing area, the extension plate moves along the main support plate towards the side away from the cylinder and changes to the extended posture, thereby increasing the total length of the main support plate and the extension plate in the diameter direction of the virtual circle. This design effectively expands the standing range of construction workers, improves the space utilization rate of the support platform, and can be restored to the retracted state when not in use.

[0043] Optionally, one end of the vertical rod away from the auxiliary support ring passes through the main support plate along the first direction and extends to the side of the main support plate away from the auxiliary support ring; an avoidance groove is formed at one end of the extension plate away from the cylinder, and the vertical rod is disposed through the avoidance groove when the extension plate is in the storage posture and the extended posture.

[0044] By adopting the above technical solution, one end of the vertical rod away from the auxiliary support ring passes through the main support plate and extends to the side of the main support plate away from the auxiliary support ring, which can provide an additional holding point for construction workers and improve the safety during the construction process. An avoidance groove is formed at one end of the extension plate away from the cylinder, so that the vertical rod can be smoothly disposed through the avoidance groove when the extension plate is in the storage posture and the extended posture, avoiding interference between the vertical rod and the extension plate and ensuring the normal sliding and posture adjustment function of the extension plate.

[0045] Optionally, a translation driving assembly is further included, and the translation driving assembly includes:

[0046] A driving gear coaxially and fixedly connected to the vertical rod, and the vertical rod is rotatably connected to the main support plate around the axis of the vertical rod itself; and a rack fixedly connected to the extension plate, and the rack is parallel to the sliding direction of the extension plate along the main support plate, and the rack meshes with the driving gear.

[0047] By adopting the above technical solution, when the vertical rod rotates, the driving gear rotates accordingly, and then drives the engaged rack to move, thereby realizing the sliding of the extension plate along the main support plate. This design enables the extension plate to switch between the storage posture and the extended posture, effectively expanding the standing range of construction workers or increasing the placement space for working tools.

[0048] Optionally, a telescopic rod is further included, the telescopic direction of the telescopic rod is parallel to the first direction, and each end of the vertical rod away from the auxiliary support ring is correspondingly connected with a telescopic rod.

[0049] By adopting the above technical solution, the setting of the telescopic rod provides an additional handrail for construction workers and improves the operation safety of construction workers on the main support plate.

[0050] In summary, the present application includes at least one of the following beneficial technical effects:

[0051] By providing a rotatable main support plate and an extension plate, the working area can be flexibly adjusted without increasing the overall size, solving the problem of poor passability of narrow channels caused by the fixed size of traditional support platforms;

[0052] The connection structure between the auxiliary support ring and the chassis enhances the overall stability, and at the same time, the design of the casters facilitates the movement of the support platform and adapts to complex construction environments;

[0053] The angle adjustment component cooperates with the jack and the motor to achieve precise rotation of the chassis, and can quickly adjust the angle of the support platform to meet different construction requirements, improving construction efficiency. Description of the Drawings

[0054] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0055] Figure 2 is a schematic diagram of the structure of the rotation drive component in an embodiment of the present application;

[0056] Figure 3 is Figure 1 an enlarged view of part A in

[0057] Figure 4 is a schematic diagram of the structure of the end support component in an embodiment of the present application;

[0058] Figure 5 is a schematic diagram of the third motor installed on the auxiliary support ring in an embodiment of the present application.

[0059] Description of the reference numerals: 1, chassis; 2, cylinder; 21, mounting seat; 3, main support component; 31, main support plate; 32, avoidance gap; 33, extension plate; 331, avoidance groove; 4, auxiliary support component; 41, auxiliary support ring; 411, groove; 412, guide groove; 413, third motor; 42, connecting rod; 43, weight reduction gap; 44, caster wheel; 5, angle adjustment component; 51, jack; 52, lifting plate; 53, first motor; 6, rotation drive component; 61, first bevel gear; 62, second bevel gear; 63, second motor; 7, end support component; 71, vertical rod; 711, ring; 8, translation drive component; 81, drive gear; 82, rack; 9, telescopic rod. Detailed Description of the Embodiment

[0060] The following will further describe the present application in detail with reference to the attached Figures 1-5 For the convenience of description, the present application introduces orientation terms such as the first direction. Specifically, it can be referred to the figure shown, where X represents the first direction.

[0061] An embodiment of the present application discloses a support platform for tunnel construction. Refer to Figure 1 and Figure 2 , the support platform for tunnel construction includes a chassis 1, a cylinder 2 and a plurality of main support components 3. The upper plate surface of the chassis 1 is perpendicular to the first direction. In actual construction, the first direction is the vertical direction, and the chassis 1 in the present disclosure is disc-shaped; the cylinder 2 is fixedly connected to the chassis 1, and the cylinder 2 and the chassis 1 are coaxially arranged, and the central axis of the cylinder 2 is the first axis; the main support component 3 is connected to the cylinder 2 for personnel to stand on.

[0062] Reference Figure 1 and Figure 2 In order to improve the overall stability of the support platform, in some embodiments of the present application, an auxiliary support assembly 4 is further included. The auxiliary support assembly 4 includes an auxiliary support ring 41 and a connecting rod 42. The auxiliary support ring 41 is located on the outer periphery of the chassis 1. A weight-reducing gap 43 is left between the inner peripheral wall of the auxiliary support ring 41 and the outer peripheral wall of the chassis 1. In the present disclosure, the auxiliary support ring 41 is coaxially arranged with the cylinder 2; a plurality of connecting rods 42 are provided between the auxiliary support ring 41 and the chassis 1. One end of the connecting rod 42 is fixedly connected to the auxiliary support ring 41, and the other end is fixedly connected to the chassis 1 to realize the fixation of the chassis 1 and the auxiliary support ring 41; the auxiliary support ring 41 fixed on the outer periphery of the chassis 1 can increase the support area of the entire support platform and improve the overall stability of the support platform;

[0063] In order to facilitate the movement of the support platform, in one embodiment of the present application, the auxiliary support assembly 4 further includes a plurality of casters 44. The casters 44 are universal wheels, and the casters 44 are installed on the auxiliary support ring 41 by screws; when it is necessary to change the position of the support platform, just push the support platform to move.

[0064] Reference Figure 1 and Figure 2 After the support platform is pushed to the required position, if it is necessary to rotate the entire support platform to the required angle to adapt to the construction requirements of different positions or different terrains, the chassis 1 can be rotated around the first axis. For this purpose, in some embodiments of the present application, an angle adjustment assembly 5 is further included. In the first direction, the angle adjustment assembly 5 is located at one end of the chassis 1 away from the main support assembly 3. The angle adjustment assembly 5 includes a plurality of jacks 51, a lifting plate 52, and a first motor 53; the jacking direction of the jack 51 is parallel to the first direction, and the lifting plate 52 is fixedly connected to the output end of the jack 51. The jack 51 can jack up the lifting plate 52; the chassis 1 is rotatably connected to the lifting plate 52 through a first rotating shaft, and the first rotating shaft is coaxial with the cylinder 2; when the jack 51 jacks up the lifting plate 52, the chassis 1 is jacked up synchronously with the lifting plate 52; in the present disclosure, there are two jacks 51, and the lifting plate 52 is fixedly connected to the output ends of the two jacks 51;

[0065] The first motor 53 is connected between the lifting plate 52 and the first rotating shaft to drive the chassis 1 to rotate around the first axis by the first motor 53; specifically, the housing of the first motor 53 is fixedly connected to the lifting plate 52, and the output shaft of the first motor 53 is coaxially fixedly connected to the first rotating shaft, so that the first motor 53 can drive the chassis 1 to rotate along the lifting plate 52;

[0066] One end of the jack 51 away from the chassis 1 is the jacking end, and one end of the caster 44 away from the auxiliary support ring 41 is the landing end; when the jack 51 lands, if the caster 44 leaves the ground, or the main load is not on the caster 44, the chassis 1 can be driven to rotate by the first motor 53; the stroke of the jack 51 satisfies the following conditions:

[0067] When the jack 51 is at its shortest length, in the first direction, the jacking end of the jack 51 is located on the side of the landing end of the caster 44 close to the auxiliary support ring 41;

[0068] When the jack 51 is at its maximum length, in the first direction, the jacking end of the jack 51 is located on the side of the landing end of the caster 44 away from the auxiliary support ring 41.

[0069] Referring to Figure 1 and Figure 3 , the main support assembly 3 is installed on the cylinder 2, and a plurality of main support assemblies 3 are spaced apart in the first direction. The main support assembly 3 includes a main support plate 31, and the upper plate surface of the main support plate 31 is perpendicular to the first direction; in the first direction, an avoidance gap 32 is formed between the main support plates 31 of two adjacent main support assemblies 3. The avoidance gap 32 can be used to accommodate construction workers and place items such as working tools;

[0070] The main support plate 31 is rotatably connected to the cylinder 2 around the first axis. To facilitate the rotation of the main support plate 31, a lug is formed at one end of the main support plate 31, and the lug is sleeved on the cylinder 2 so that the main support plate 31 is rotatably connected to the cylinder 2 through the lug.

[0071] Referring to Figure 3 , in order to drive the main support plate 31 to rotate along the cylinder 2, in some embodiments of the present application, a rotation drive assembly 6 is further included. Each main support plate 31 and the cylinder 2 are respectively connected with a rotation drive assembly 6 to drive the main support plate 31 to rotate around the first axis; in the present disclosure, the rotation drive assembly 6 is located on the side of the lug close to the chassis 1; the rotation drive assembly 6 includes a first bevel gear 61, a second bevel gear 62 and a second motor 63. The first bevel gear 61 is fixedly connected to the main support plate 31. In the present disclosure, the first bevel gear 61 is fixedly connected to the lug of the main support plate 31, and the first bevel gear 61 is coaxially sleeved and connected to the cylinder 2 so that the first bevel gear 61 can rotate synchronously with the main support plate 31;

[0072] To install the second bevel gear 62 and the second motor 63, a mounting seat 21 is fixedly connected to the circumferential wall of the cylinder 2. The housing of the second motor 63 is fixedly connected to the mounting seat 21, and the second bevel gear 62 is coaxially and fixedly connected to the output shaft of the second motor 63, so that the second bevel gear 62 is driven by the second motor 63 to rotate; the second bevel gear 62 meshes with the first bevel gear 61. Therefore, during the process of the second motor 63 driving the second bevel gear 62 to rotate, the first bevel gear 61 will rotate synchronously with the second bevel gear 62, and the main support plate fixedly connected to the first bevel gear 61 will rotate synchronously;

[0073] During the construction process, each rotation driving assembly 6 can drive a main support plate 31 to rotate respectively. It can not only send the personnel and goods standing on the main support plate 31 to different angles, but also rotate multiple adjacent main support plates 31 to the posture of a spiral staircase, so as to facilitate people to step on the main support plate 31 and climb upward.

[0074] Refer to Figure 4 and Figure 5 In order to expand the standing range of personnel, in some embodiments of the present application, the main support assembly 3 further includes an extension plate 33. The upper plate surface of the extension plate 33 is perpendicular to the first direction, and in the first direction, the extension plate 33 is located on the side of the main support plate 31 close to the chassis 1; for the convenience of description, a virtual circle is introduced, and the central axis of the virtual circle coincides with the first axis; the extension plate 33 is slidably connected to the main support plate 31 along the diameter direction of the virtual circle, so that the extension plate 33 can be adjusted between a retracted posture and an extended posture;

[0075] When the extension plate 33 is in the retracted posture, in the first direction, the extension plate 33 is disposed opposite to the main support plate 31, and in the present disclosure, the orthographic projection of the main support plate 31 in the first direction covers the extension plate 33 in the retracted posture;

[0076] During the process of the extension plate 33 moving along the main support plate 31 towards the side away from the cylinder 2, the extension plate 33 changes from the retracted posture to the extended posture, so as to increase the total length of the extension plate 33 and the main support plate 31 on the diameter of the virtual circle. Construction workers can stand on the extension plate 33 or place operation tools and other items on the extension plate 33.

[0077] Refer to Figure 4 and Figure 5, in order to improve the stability of a person standing on the main support plate 31, in some embodiments of the present application, there is further included an end support assembly 7. The end support assembly 7 includes a vertical rod 71. The vertical rod 71 is parallel to the first direction. One end of the vertical rod 71 is connected to the end of the main support plate 31 away from the cylinder 2, and the other end is connected to the auxiliary support ring 41. Moreover, the vertical rod 71 can rotate synchronously with the main support plate 31 around the first axis, so as to assist in supporting the main support plate 31 by the vertical rod 71 and improve the stability of the main support plate 31; in order to prevent interference of the vertical rod 71 during the rotation of multiple main support plates 31 with the vertical rod 71, the distances between the vertical rod 71 and the cylinder 2 on each main support plate 31 are different. When multiple vertical rods 71 are located on the same radius of the virtual circle, there is a gap formed between adjacent two vertical rods 71, so that adjacent two vertical rods 71 do not interfere with each other;

[0078] In order to guide the rotation of the vertical rod 71 along the auxiliary support ring 41, in some embodiments of the present application, a plurality of annular grooves 411 are formed on the side of the auxiliary support ring 41 close to the main support plate 31. The plurality of grooves 411 are all coaxial with the cylinder 2, and each groove 411 is correspondingly used to accommodate a vertical rod 71; the vertical rod 71 is a columnar body with a circular cross-section. An annular ring 711 is coaxially and fixedly connected to the outer peripheral wall of the vertical rod 71. The annular ring 711 can rotate synchronously with the vertical rod 71 around the first axis; annular guide grooves 412 are formed on the inner walls of the two sides of the groove 411 of the auxiliary support ring 41. The two sides of the annular ring 711 are adaptively located in the guide grooves 412, so as to guide the rotation of the annular ring 711 around the first axis by the groove walls of the guide grooves 412;

[0079] In some embodiments, the vertical rod 71 is rotatably connected to the main support plate 31 around the second axis, and the second axis is the central axis of the vertical rod 71 itself; since the outer peripheral wall of the annular ring 711 is circular, the annular ring 711 can rotate synchronously with the vertical rod 71 in the groove 411; in order to drive the vertical rod 71 to rotate around the second axis, a gap is formed between the annular ring 711 and the bottom of the groove 411. A third motor 413 is arranged in the gap. The housing of the third motor 413 is fixedly connected to the annular ring 711, and the output shaft of the third motor 413 is coaxially and fixedly connected to the vertical rod 71, so as to drive the vertical rod 71 to rotate around the second axis by the third motor 413.

[0080] Refer to Figure 4 and Figure 5 , in some embodiments, the extension plate 33 can be located on the side of the vertical rod 71 to prevent interference between the vertical rod 71 and the extension plate 33; in other embodiments, an avoidance groove 331 is formed at the end of the extension plate 33 away from the cylinder 2. When the extension plate 33 is in the retracted posture and the extended posture, the vertical rod 71 passes through the avoidance groove 331.

[0081] Refer to Figure 4 and Figure 5, in order to drive the extension plate 33 to move along the main support plate 31, in some embodiments of the present application, a translation driving assembly 8 is further included. The translation driving assembly 8 includes a driving gear 81 and a rack 82. The driving gear 81 is located in the avoidance groove 331, and the driving gear 81 is coaxially and fixedly connected to the vertical rod 71. The rack 82 is fixedly connected to the extension plate 33, and the rack 82 is parallel to the sliding direction of the extension plate 33 along the main support plate 31. The rack 82 and the driving gear 81 are meshed. During the process that the third motor 413 drives the vertical rod 71 to rotate around the second axis, the vertical rod 71 will drive the driving gear 81 to rotate, and the driving gear 81 will drive the rack 82 and the extension plate 33 to move synchronously to change the posture of the extension plate 33.

[0082] Referring to Figure 5 , in some embodiments of the present application, one end of the vertical rod 71 away from the auxiliary support ring 41 passes through the main support plate 31 along the first direction and extends to the side of the main support plate 31 away from the auxiliary support ring 41. A telescopic rod 9 is fixedly connected to the end of the vertical rod 71 away from the auxiliary support ring 41. The telescopic direction of the telescopic rod 9 is parallel to the first direction. Each end of the vertical rod 71 away from the auxiliary support ring 41 is correspondingly connected with a telescopic rod 9. The telescopic rod 9 can be held by a person and used as a handrail. In other embodiments, railings can also be provided on the outer circumference of the main support plate 31 to improve safety performance.

[0083] The implementation principle of a support platform for tunnel construction in an embodiment of the present application is as follows: After the support platform is pushed to the working position, personnel can stand on the main support plate 31 for construction operations. If the area of the main support plate 31 is not enough, the extension plate 33 can also be adjusted to the extended posture to expand the support surface. During the construction process, if it is necessary to adjust the angle of the operating personnel, the main support plate 31 can be rotated around the first axis to adapt to operations at different positions.

[0084] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A support platform for tunnel construction, characterized in that: include: Chassis (1); A cylinder (2), the cylinder (2) is parallel to the first direction, and the cylinder (2) is fixedly connected to the chassis (1); and a plurality of main support assemblies (3), wherein the plurality of main support assemblies (3) are spaced apart and distributed in a first direction, and the main support assemblies (3) comprise: A main support plate (31), the upper plate surface of the main support plate (31) being perpendicular to a first direction; in the first direction, an avoidance gap (32) is formed between the main support plates (31) in two adjacent main support assemblies (3); the main support plate (31) is rotatably connected to the cylinder (2) around a first axis, and the first axis coincides with the central axis of the cylinder (2); Also includes: A rotation drive assembly (6), wherein each of the main support plates (31) and the cylinder (2) is correspondingly connected with the rotation drive assembly (6) to drive the main support plates (31) to rotate around a first axis; Also includes: An auxiliary support assembly (4), the auxiliary support assembly (4) comprising: an auxiliary support ring (41), the auxiliary support ring (41) being sleeved on the outer periphery of the chassis (1), a weight-reducing gap (43) being left between the inner peripheral wall of the auxiliary support ring (41) and the outer peripheral wall of the chassis (1); and a connecting rod (42), the connecting rod (42) being fixedly connected between the auxiliary support ring (41) and the chassis (1); It also includes an end support assembly (7), wherein the end support assembly (7) includes: A vertical rod (71), wherein the vertical rod (71) is parallel to the first direction, one end of the vertical rod (71) is connected to one end of the main support plate (31) away from the cylinder (2), so that the vertical rod (71) rotates synchronously with the main support plate (31) around the first axis, and the other end of the vertical rod (71) is connected to the auxiliary support ring (41) by rotation around the first axis; the spacing between the vertical rod (71) and the cylinder (2) on each main support plate (31) is different, and when a plurality of the vertical rods (71) are located on the same radius of a virtual circle, two adjacent vertical rods (71) do not interfere with each other; The main support assembly (3) further comprises: an extension plate (33), the upper plate surface of the extension plate (33) being perpendicular to a first direction; in the first direction, the extension plate (33) is located on a side of the main support plate (31) close to the chassis (1); the extension plate (33) is slidably connected to the main support plate (31) along a diameter direction of a virtual circle, so that the extension plate (33) can be adjusted between a storage posture and an extension posture; the virtual circle is coaxial with the cylinder (2); when the extension plate (33) is in the storage posture, in the first direction, the extension plate (33) is arranged directly opposite to the main support plate (31); When the extension plate (33) moves along the main support plate (31) toward a side away from the cylinder (2), the extension plate (33) changes from a stored posture to an extended posture, so as to increase the total length of the extension plate (33) and the main support plate (31) on the virtual circle diameter; After one end of the vertical rod (71) away from the auxiliary support ring (41) passes through the main support plate (31) along a first direction, it extends to a side of the main support plate (31) away from the auxiliary support ring (41); an escape groove (331) is provided at one end of the extension plate (33) away from the cylinder (2); when the extension plate (33) is in a storage posture and an extended posture, the vertical rod (71) is inserted into the escape groove (331).

2. A tunnel construction support platform according to claim 1, characterized in that: The auxiliary support assembly (4) further comprises: A plurality of casters (44), wherein the casters (44) are connected to the auxiliary support ring (41).

3. A tunnel construction support platform according to claim 2, characterized in that: It also includes an angle adjustment component (5), the angle adjustment component (5) comprising: A plurality of jacks (51), wherein the lifting direction of the jacks (51) is parallel to the first direction; a lifting plate (52), wherein the lifting plate (52) is fixedly connected to the output end of the jack (51); the chassis (1) is rotatably connected to the lifting plate (52) via a first rotating shaft, wherein the first rotating shaft is coaxial with the cylinder (2); and a first motor (53), wherein the first motor (53) is connected between the lifting plate (52) and the first rotating shaft, so that the chassis (1) is driven by the first motor (53) to rotate around the first axis; The end of the jack (51) away from the chassis (1) is a top support end, and the end of the caster (44) away from the auxiliary support ring (41) is a ground end; When the jack (51) is at its shortest length, in the first direction, the supporting end of the jack (51) is located on a side of the caster (44) landing end close to the auxiliary support ring (41); when the jack (51) is at its maximum length, in the first direction, the supporting end of the jack (51) is located on a side of the caster (44) landing end away from the auxiliary support ring (41).

4. A tunnel construction support platform according to claim 1, characterized in that: The rotary drive assembly comprises: A first bevel gear (61), the first bevel gear (61) is coaxially sleeved and connected to the cylinder (2), and the first bevel gear (61) is fixedly connected to the main support plate (31); a second bevel gear (62), the second bevel gear (62) being meshed with the first bevel gear (61); and a second motor (63), the second motor (63) being fixedly connected to the cylinder (2), and the second bevel gear (62) being connected to an output shaft of the second motor (63), so that the second bevel gear (62) is driven to rotate by the second motor (63).

5. A tunnel construction support platform according to claim 1, characterized in that: It also includes a translation drive assembly (8), the translation drive assembly (8) comprising: A driving gear (81), wherein the driving gear (81) is coaxially fixedly connected to the vertical rod (71), and the vertical rod (71) is rotatably connected to the main support plate (31) around its own axis; and a rack (82), wherein the rack (82) is fixedly connected to the extension plate (33), and the rack (82) is parallel to the extension plate (33) along the sliding direction of the main support plate (31), and the rack (82) and the driving gear (81) are meshed.

6. A tunnel construction support platform according to claim 5, characterized in that: It also comprises a telescopic rod (9), the telescopic direction of the telescopic rod (9) being parallel to the first direction, and one end of each of the vertical rods (71) away from the auxiliary support ring (41) is correspondingly connected to one of the telescopic rods (9).

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