Auxiliary device for concrete bottom support

Abstract

The present invention discloses an auxiliary device for supporting the bottom of concrete, comprising a supporting vehicle body, a plurality of supporting rods provided on the top of the supporting vehicle body, a driving device provided on the bottom of the supporting vehicle body, a plurality of sliding wheel groups provided on the tops of the support rods for supporting the bottom of the concrete block, a plurality of supporting grooves provided on the tops of the support rods, and a moving device provided on the top of the supporting vehicle body for driving the sliding wheel groups to slide along the inside of the supporting grooves. This auxiliary device for supporting the bottom of concrete can drive the plurality of supporting rods to open and contract, thereby automatically adjusting the different types of semi-conical shapes formed by the plurality of supporting rods, thereby supporting arched tunnel concrete blocks of different types, avoiding the need for manual adjustment by staff, and the moving device can drive the sliding wheel group to move along the diameter formed by the support rods, so that the sliding wheel group can evenly support the bottom of the concrete on the support rods.

Description

Technical Field

[0001] The invention relates to the technical field of construction, in particular to an auxiliary device for supporting a concrete bottom. Background Art

[0002] The term concrete generally refers to cement as a binder, sand and stone as aggregates; mixed with water (which may contain admixtures and additives) in a certain proportion and then stirred to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] Currently, when constructing an arched tunnel, the main method is to use a mold to make a number of symmetrical concrete blocks. The concrete blocks are provided with protrusions and grooves. During construction, multiple concrete blocks need to be built into an arch shape, and the protrusions and grooves that are close to each other will be locked together, thus completing the construction of the arched tunnel, and the weighing force is relatively strong.

[0004] When constructing concrete blocks, the bottom of the concrete blocks is supported by a support vehicle. On the support vehicle, many rigid support rods with sliding wheels are built according to the type of tunnel. Multiple rigid support rods form a conical support surface. During construction, multiple concrete blocks are built on top of the rigid support rod with a larger diameter. When the support vehicle drives the support rod to move, the support rod with a smaller diameter moves forward, so that multiple concrete blocks move inward, and the protrusions and grooves are tightly connected.

[0005] However, this support rod structure is mainly constructed manually during use. When encountering different types of arch tunnel construction, workers need to readjust the position of the support rods, which increases the workload of construction workers. To this end, we propose an auxiliary device for concrete bottom support. Summary of the Invention

[0006] The object of the present invention is to provide an auxiliary device for supporting a concrete bottom to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an auxiliary device for supporting the bottom of concrete, comprising a support body, a plurality of support rods provided on the top of the support body, a driving device provided on the bottom of the support body, the driving device being capable of driving the plurality of support rods to open, a plurality of sliding wheel groups being provided on the tops of the plurality of support rods for supporting the bottom of the concrete block, a plurality of support grooves being provided on the tops of the support rods, and a moving device being provided on the top of the support body for driving the sliding wheel groups to slide along the insides of the support grooves;

[0008] The bottom of the supporting vehicle body is provided with a placement device for placing the sliding wheel set.

[0009] Preferably, the driving device includes a fixed rod arranged on the top of the supporting vehicle body, and a movable sleeve is slidably sleeved on the outer side of the fixed rod, and a multi-section electric telescopic rod is arranged on the outer side of the bottom of the movable sleeve, and the multi-section electric telescopic rod is connected to the bottom of the supporting vehicle body;

[0010] A plurality of rotating rods are provided on the outside of the movable sleeve, and the plurality of rotating rods respectively correspond to a plurality of support rods, and the two ends of the rotating rods are respectively rotatably connected to the bottom of the support rod and the movable sleeve through a rotating shaft;

[0011] An adjusting piece is provided at one end of the support rod close to the rear end of the supporting vehicle body. The adjusting piece can drive one end of the support rod to rotate, and the adjusting piece is connected to one end of the movable sleeve.

[0012] Preferably, the adjusting member comprises an arc-shaped support frame provided at one end of the supporting vehicle body, the arc-shaped support frame is provided with a plurality of fixing grooves, a telescopic rod is slidably connected to the inner side of the fixing groove, and the plurality of telescopic rods respectively correspond to a plurality of support rods, and the top of the telescopic rod is rotatably connected to one end of the support rod via a rotating shaft;

[0013] A connecting piece is provided on the outside of the movable sleeve, and the connecting piece can drive the telescopic rod to slide in the vertical direction along the fixing groove.

[0014] Preferably, the connecting member includes a tapered rod connected to one end of the movable sleeve, the tapered rod is provided with a plurality of limiting grooves corresponding to the plurality of telescopic rods respectively, and the bottom of the telescopic rod is provided with a limiting block slidably connected to the inside of the limiting groove.

[0015] Preferably, the sliding wheel assembly includes a plurality of small moving wheels, and a moving block is rotatably connected to the inner side of the plurality of small moving wheels, the bottom of the moving block is slidably connected to the inside of the support groove, a connecting rod is connected between the plurality of moving blocks, and both ends of the connecting rod are rotatably connected to the end plate through a rotating shaft, and a clamping groove is provided on the end plate, and the clamping groove is clamped with the moving device;

[0016] The outer sides of the plurality of end plates are all rotatably connected to the moving device.

[0017] Preferably, the moving device comprises a V-shaped plate arranged between two end plates, and both ends of the V-shaped plate are rotatably connected to the outer sides of two end plates close to each other, and the bottom of the V-shaped plate rotates through a rotating shaft;

[0018] The outer sides of the end plates at the two tail ends are rotatably connected to a driving assembly via a rotating shaft, and the driving assembly can drive the V-shaped plate and the small moving wheel to rotate;

[0019] Both ends of the outer support rod are provided with clamping pieces that can be clamped with the clamping grooves.

[0020] Preferably, the driving assembly includes a telescopic cylinder rotatably connected to the end plate, and a long rod is provided at the other end of the telescopic cylinder, both ends of the long rod are respectively connected to one end of the two telescopic cylinders, and either end of the long rod is connected to a driving motor, and the driving motor is connected to the bottom of the supporting vehicle body through a motor slot, and the long rod is rotatably connected to the inner side of the fixed rod through a bearing.

[0021] Preferably, the clamping part includes a limit frame connected to one end of the support rod, a buffer spring is provided on the outside of one end of the limit frame, a pressure plate is provided on the top of the buffer spring, a clamping rod is provided on the inside of the pressure plate, and a through groove corresponding to the clamping rod is provided on the limit frame, and one end of the clamping rod passes through the through groove and is clamped with the clamping groove.

[0022] Preferably, the placement device includes a small connecting groove and a large connecting groove respectively provided at the rear end and the front end of the supporting vehicle body, a first placement plate is provided on the outer side of the small connecting groove, and an auxiliary component capable of supporting and placing the V-shaped plate is provided on the inner side of the first placement plate;

[0023] A second placement plate is provided inside the large connecting groove, and an auxiliary component capable of supporting the front V-shaped plate is provided inside the second placement plate;

[0024] The top of the second placement plate is connected to the bottom of the limiting frame, and positioning rods are provided on both sides of the second placement plate. Positioning grooves that are slidably connected to the outer sides of the positioning rods are provided on both sides of the large connecting groove.

[0025] Preferably, the auxiliary component includes a receiving plate arranged on the inner side of the first placement plate, and a compression spring is connected between the bottom of the receiving plate and the bottom of the first placement plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The device of the present invention is provided with a driving device that can drive the multiple support rods to expand and contract, so that the different types of semi-conical shapes formed by the multiple support rods can be automatically adjusted, thereby supporting different types of arched tunnel concrete blocks, avoiding the need for manual adjustment by staff, and the provided moving device can drive the sliding wheel group to move along the diameter formed by the support rods, so that the sliding wheel group can evenly support the concrete bottom on the support rods.

[0028] 2. The equipment of the present invention is provided with a moving device that can drive the sliding wheel group to move and can also control the number of sliding wheel groups used, so that the distribution of the sliding wheel groups on the top of the support rod can be adjusted according to the model of the arch tunnel, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the main structure of the overall structure of the present invention;

[0030] Figure 2 It is a schematic cross-sectional view of the rear structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the side view of the structure of the present invention Figure 1 ;

[0032] Figure 4 This is a bottom view schematic diagram of the structural driving device of the present invention;

[0033] Figure 5 This is a schematic diagram of the side view of the structure of the present invention Figure 2 ;

[0034] Figure 6 This is a schematic diagram of the top view of the structural support rod of the present invention;

[0035] Figure 7 This is a schematic diagram of a cross-sectional structure of a fixing rod of the present invention from the bottom view;

[0036] Figure 8 This is a schematic diagram of the main structure of the V-shaped plate of the present invention;

[0037] Figure 9 This is a schematic diagram of the cross-sectional structure of the tapered rod structure of the present invention;

[0038] Figure 10 This is a schematic diagram of the main structure of the structural clamping member of the present invention;

[0039] Figure 11 This is a schematic diagram of the top view of the structure supporting the vehicle body of the present invention;

[0040] Figure 12 This is a schematic diagram of the internal structure of the first placement plate of the structure of the present invention;

[0041] Figure 13 This is a schematic diagram of the main structure of the second placement plate of the structure of the present invention.

[0042] In the figure: 1-support body; 10-support rod; 2-drive device; 3-sliding wheel group; 11-support groove; 4-moving device; 5-placing device; 20-fixing rod; 21-moving sleeve; 22-multi-section electric telescopic rod; 23-rotating rod; 24-adjusting member; 240-arc-shaped support frame; 241-fixing groove; 242-telescopic rod; 25-connecting member; 250-tapered rod; 251-limiting groove; 252-limiting block; 30-small moving wheel; 31-moving block; 32-connecting rod; 3 3-end plate; 34-clamping groove; 40-V-shaped plate; 41-drive assembly; 42-clamping piece; 410-telescopic cylinder; 411-long rod; 412-drive motor; 420-limiting frame; 421-buffer spring; 422-pressure plate; 423-clamping rod; 424-through groove; 50-small connecting groove; 51-large connecting groove; 52-first placement plate; 53-auxiliary assembly; 54-second placement plate; 55-positioning rod; 56-positioning groove; 530-supporting plate; 531-compression spring. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] See also Figure 1-13 The present invention provides a technical solution: an auxiliary device for supporting the bottom of concrete, comprising a supporting body 1, a plurality of supporting rods 10 provided on the top of the supporting body 1, a driving device 2 provided at the bottom of the supporting body 1, the driving device 2 being capable of driving the plurality of supporting rods 10 to open, a plurality of sliding wheel groups 3 being provided on the top of the plurality of supporting rods 10 for supporting the bottom of the concrete block, a plurality of supporting grooves 11 being provided on the top of the supporting body 1, and a moving device 4 being provided on the top of the supporting body 1 for driving the sliding wheel groups 3 to slide along the inside of the supporting grooves 11;

[0045] A placement device 5 for placing the sliding wheel set 3 is provided at the bottom of the supporting vehicle body 1;

[0046] During use, engineers can adjust the degree of opening of the multiple support rods 10 according to the size of the arched tunnel to be built. By turning on the driving device 2, the driving device 2 can drive the multiple support rods 10 to open, and the multiple support rods 10 can be opened into a semicircle with a larger front diameter and a smaller rear diameter according to the needs of use;

[0047] When the support rod 10 is adjusted, the moving device 4 can control the amount of the sliding wheel set 3 used according to the size of the opening at both ends of the support rod 10, and drive the sliding wheel set 3 to move, and the sliding wheel set 3 slides in an arc along the support groove 11 on the support rod 10;

[0048] At the same time, the movable wheel groups can be evenly distributed on the top of the multiple support rods 10, so as to support the bottom of the concrete used for the arch bridge;

[0049] When the concrete is spliced ​​under the support of the support rods 10 and the front end of the sliding wheel group 3, the engineer can support the vehicle body 1 to move forward, so that the multiple support rods 10 and the sliding wheel group 3 with relatively small diameters at the rear end move forward, so that multiple concrete blocks move inward under the support of the rear end, and the concrete arch bridge is completed.

[0050] The driving device 2 includes a fixed rod 20 fixed to the top of the supporting body 1, and a movable sleeve 21 is slidably sleeved on the outer side of the fixed rod 20. A multi-section electric telescopic rod 22 is provided on the outer side of the bottom of the movable sleeve 21. The multi-section electric telescopic rod 22 is fixedly connected to the bottom of the supporting body 1;

[0051] A plurality of rotating rods 23 are provided on the outside of the movable sleeve 21, and the plurality of rotating rods 23 correspond to the plurality of support rods 10 respectively. The two ends of the rotating rods 23 are rotatably connected to the bottom of the support rod 10 and the outside of the movable sleeve 21 respectively through a rotating shaft;

[0052] An adjusting member 24 is provided at one end of the support rod 10 close to the rear end of the supporting vehicle body 1. The adjusting member 24 can drive one end of the support rod 10 to rotate, and the adjusting member 24 is connected to one end of the movable sleeve 21.

[0053] The adjusting member 24 includes an arc-shaped support frame 240 fixed to one end of the supporting vehicle body 1. The arc-shaped support frame 240 is provided with a plurality of fixing grooves 241. A telescopic rod 242 is slidably connected to the inner side of the fixing groove 241. The plurality of telescopic rods 242 respectively correspond to a plurality of support rods 10. The top of the telescopic rod 242 is rotatably connected to one end of the support rod 10 via a rotating shaft.

[0054] A connecting piece 25 is provided on the outside of the movable sleeve 21, and the connecting piece 25 can drive the telescopic rod 242 to slide in the vertical direction along the fixing groove 241;

[0055] The connecting member 25 includes a tapered rod 250 fixedly connected to one end of the movable sleeve 21. The tapered rod 250 is provided with a plurality of limiting grooves 251 corresponding to the plurality of telescopic rods 242. A limiting block 252 is fixed to the bottom of the telescopic rod 242 and is slidably connected to the inner portion of the limiting groove 251.

[0056] When in use, the multi-section electric telescopic rod 22 is opened, and the multi-section electric telescopic rod 22 drives the movable sleeve 21 to slide along the outer side of the fixed rod 20, so that the movable sleeve 21 drives the multiple rotating rods 23 to rotate. The rotation of the multiple rotating rods 23 can spread one end of the multiple support rods 10, so that the tail end of the support rod 10 rotates along the top of the telescopic rod 242;

[0057] When the movable sleeve 21 moves, it drives the tapered rod 250 to move along the outside of the fixed rod 20, and the tapered rod 250 moves, so that the limit block 252 slides along the inside of the limit groove 251, so that the limit block 252 can lift the telescopic rod 242, and the telescopic rod 242 can lift one end of the support rod 10. In conjunction with the use of the movable sleeve 21, the model formed by multiple support rods 10 can be adjusted to support the interior of arched tunnels of different models, and the height of the telescopic rod 242 is less than the height of the rotating rod 23 lifting the tail end of the support rod 10. Multiple support rods 10 can form a cone to support the interior of the arched tunnel.

[0058] The sliding wheel group 3 includes a plurality of small moving wheels 30, and the inner sides of the plurality of small moving wheels 30 are rotatably connected to moving blocks 31 via rotating shafts. The bottoms of the moving blocks 31 are slidably connected to the inside of the support groove 11. A connecting rod 32 is fixedly connected between the plurality of moving blocks 31, and both ends of the connecting rod 32 are rotatably connected to end plates 33 via rotating shafts. The end plates 33 are provided with engaging grooves 34, and the engaging grooves 34 are engaged with the moving device 4.

[0059] The outer sides of the end plates 33 are all rotatably connected to the moving device 4;

[0060] The moving device 4 includes a V-shaped plate 40 disposed between the two end plates 33. The V-shaped plate 40 is composed of two plates, and the bottoms of the two plates are rotatably connected by a rotating shaft. The two ends of the V-shaped plate 40 are respectively rotatably connected to the outer sides of the two adjacent end plates 33 by rotating shafts, and the bottom of the V-shaped plate 40 rotates via the rotating shaft.

[0061] The outer sides of the two tail end plates 33 are rotatably connected to a driving assembly 41 via a rotating shaft. The driving assembly 41 can drive the V-shaped plate 40 and the small moving wheel 30 to rotate.

[0062] Both ends of the outer support rod 10 are provided with a clamping piece 42 that can be clamped with the clamping groove 34.

[0063] The driving assembly 41 includes a telescopic cylinder 410 which is rotatably connected to one end of the end plate 33 via a rotating shaft, and a long rod 411 is provided at one end of the telescopic cylinder 410. The two ends of the long rod 411 are respectively fixedly connected to one end of the two telescopic cylinders 410. A driving motor 412 is fixedly connected to either end of the long rod 411. The driving motor 412 is fixedly connected to the bottom of the support vehicle through a motor slot, and the long rod 411 is rotatably connected to the inner side of the fixed rod 20 through a bearing.

[0064] The clamping member 42 includes a limiting frame 420 fixedly connected to one end of the support rod 10. Since the other end of the support rod 10 is provided with a telescopic rod 242, the limiting frame 420 at the tail end is directly fixedly connected to one end of the telescopic rod 242. A buffer spring 421 is fixed to the outside of one end of the limiting frame 420. A pressure plate 422 is fixed to the top of the buffer spring 421. A clamping rod 423 is fixed to the inside of the pressure plate 422. A through slot 424 corresponding to the clamping rod 423 is provided on the limiting frame 420. One end of the clamping rod 423 passes through the through slot 424 and is clamped to the clamping slot 34.

[0065] When the support rod 10 is adjusted to the required model, when the model formed by multiple support rods 10 is relatively large, more sliding wheel groups 3 can be pulled out from the placement device 5, and then the end plates 33 at both ends of the connecting rod 32 at the end are positioned, and the pressure plate 422 is pulled. The pressure plate 422 drives the clamping rod 423 to move into the through groove 424. When the required end plate 33 moves to this position, the pressure plate 422 is released. Under the action of the buffer spring 421, one end of the clamping rod 423 passes through the through groove 424 and is clamped with the clamping groove 34;

[0066] At the same time, the telescopic cylinders 410 at both ends are opened, and the telescopic cylinders 410 drive the two end plates 33 to align with the diameters formed by the two ends of the support rod 10, and enable the moving block 31 to slide inside the support groove 11;

[0067] When the drive motor 412 is turned on, the drive motor 412 drives the long rod 411 to rotate, and the long rod 411 can drive the telescopic cylinders 410 at both ends to rotate, and the telescopic cylinders 410 drive the end plates 33 connected thereto to move along the inside of the support groove 11 on the same plane, so that under the action of the connecting rod 32, multiple small moving wheels 30 can be evenly distributed on the outside of multiple support rods 10, thereby achieving bottom support for the concrete, and when the small moving wheel group 30 moves along the outside of the support rod 10, both ends of the connecting rod 32 rotate with the end plate 33, and the multiple small moving wheels 30 are placed at an angle to better support the bottom of the concrete.

[0068] The placement device 5 includes a small connecting groove 50 and a large connecting groove 51 respectively provided at the rear end and the front end of the supporting body 1. A first placement plate 52 is fixed to the outside of the small connecting groove 50, and an auxiliary component 53 for supporting and placing the V-shaped plate 40 is provided on the inside of the first placement plate 52.

[0069] A second placement plate 54 is provided inside the large connection groove 51 , and an auxiliary component 53 for supporting the front V-shaped plate 40 is provided inside the second placement plate 54 ;

[0070] The auxiliary components 53 on the inner sides of the first placement plate 52 and the second placement plate 54 are identical;

[0071] The top of the second placement plate 54 is fixedly connected to the bottom of the limiting frame 420, and positioning rods 55 are fixed on both sides of the second placement plate 54. Positioning grooves 56 that are slidably connected to the outer sides of the positioning rods 55 are provided on both sides of the large connecting groove 51;

[0072] The auxiliary assembly 53 includes a receiving plate 530 disposed inside the first placement plate 52 and the second placement plate 54, and a compression spring 531 is fixed between the bottom of the receiving plate 530 and the bottom of the first placement plate 52 and the second placement plate 54;

[0073] When in use, the two ends of the redundant sliding wheel group 3 and the V-shaped plate 40 can be placed inside the first placement plate 52 and the second placement plate 54, and the compression spring 531 and the receiving plate 530 inside the first placement plate 52 and the second placement can support the bottom V-shaped plate 40, or when in use, the redundant sliding wheel group 3 can be removed and can be used next time, and the compression spring 531 can protect the bottom of the V-shaped plate 40.

[0074] In this solution, the circuit operation is an existing conventional circuit, and the circuits and controls involved in the present invention are all existing technologies, which will not be described in detail here.

[0075] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0076] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A concrete bottom support auxiliary device, comprising a support vehicle body (1), characterized in that: The support vehicle body (1) is provided with a plurality of support rods (10) at the top, and a driving device (2) is provided at the bottom of the support vehicle body (1). The driving device (2) can drive the plurality of support rods (10) to open, and a plurality of sliding wheel groups (3) that can support the bottom of the concrete block are provided at the top of the plurality of support rods (10). A plurality of supporting grooves (11) are provided at the top of the support vehicle body (1), and a moving device (4) that can drive the sliding wheel group (3) to slide along the inside of the supporting groove (11) is provided at the top of the support vehicle body (1); The bottom of the supporting vehicle body (1) is provided with a placement device (5) capable of placing the sliding wheel set (3).

2. The auxiliary device for concrete bottom support according to claim 1, characterized in that: The driving device (2) comprises a fixed rod (20) arranged on the top of the supporting vehicle body (1), and a movable sleeve (21) is slidably sleeved on the outer side of the fixed rod (20), and a multi-section electric telescopic rod (22) is arranged on the outer side of the bottom of the movable sleeve (21), and the multi-section electric telescopic rod (22) is connected to the bottom of the supporting vehicle body (1); A plurality of rotating rods (23) are provided on the outside of the movable sleeve (21), and the plurality of rotating rods (23) respectively correspond to a plurality of support rods (10), and both ends of the rotating rods (23) are rotatably connected to the bottom of the support rod (10) and the movable sleeve (21) through rotating shafts. An adjusting member (24) is provided at one end of the support rod (10) close to the rear end of the supporting vehicle body (1), and the adjusting member (24) can drive one end of the support rod (10) to rotate, and the adjusting member (24) is connected to one end of the movable sleeve (21); The adjusting member (24) comprises an arc-shaped support frame (240) arranged at one end of the supporting vehicle body (1), a plurality of fixing grooves (241) are arranged on the arc-shaped support frame (240), a telescopic rod (242) is slidably connected to the inner side of the fixing groove (241), and the plurality of telescopic rods (242) respectively correspond to a plurality of support rods (10), and the top of the telescopic rod (242) is rotatably connected to one end of the support rod (10) via a rotating shaft; A connecting piece (25) is provided on the outside of the movable sleeve (21), and the connecting piece (25) can drive the telescopic rod (242) to slide in the vertical direction along the fixing groove (241); The connecting member (25) comprises a tapered rod (250) connected to one end of the movable sleeve (21); a plurality of limiting grooves (251) corresponding to the plurality of telescopic rods (242) are provided on the tapered rod (250); and a limiting block (252) slidably connected to the inside of the limiting groove (251) is provided at the bottom of the telescopic rod (242).

3. The auxiliary device for concrete bottom support according to claim 1, characterized in that: The sliding wheel group (3) includes a plurality of small moving wheels (30), and the inner sides of the plurality of small moving wheels (30) are rotatably connected to moving blocks (31), the bottoms of the moving blocks (31) are slidably connected to the inside of the support groove (11), a connecting rod (32) is connected between the plurality of moving blocks (31), and both ends of the connecting rod (32) are rotatably connected to end plates (33) through rotating shafts, and a clamping groove (34) is provided on the end plate (33), and the clamping groove (34) is clamped to the moving device (4); The outer sides of the plurality of end plates (33) are all rotatably connected to the moving device (4).

4. The auxiliary device for concrete bottom support according to claim 1, characterized in that: The moving device (4) includes a V-shaped plate (40) arranged between two end plates (33), and the two ends of the V-shaped plate (40) are respectively rotatably connected to the outer sides of two end plates (33) close to each other, and the bottom of the V-shaped plate (40) rotates through a rotating shaft; The outer sides of the end plates (33) at the two tail ends are rotatably connected to a driving assembly (41) via a rotating shaft, and the driving assembly (41) can drive the V-shaped plate (40) and the small moving wheel (30) to rotate; Both ends of the outer support rod (10) are provided with a clamping piece (42) that can be clamped with the clamping groove (34).

5. The auxiliary device for concrete bottom support according to claim 4, characterized in that: The driving assembly (41) comprises a telescopic cylinder (410) rotatably connected to the end plate (33), and a long rod (411) is provided at the other end of the telescopic cylinder (410), and both ends of the long rod (411) are respectively connected to one end of the two telescopic cylinders (410), and either end of the long rod (411) is connected to a driving motor (412), and the driving motor (412) is connected to the bottom of the supporting vehicle body (1) through a motor slot, and the long rod (411) is rotatably connected to the inner side of the fixed rod (20) through a bearing.

6. The auxiliary device for concrete bottom support according to claim 4, characterized in that: The clamping member (42) includes a limiting frame (420) connected to one end of the support rod (10), a buffer spring (421) is provided on the outside of one end of the limiting frame (420), a pressure plate (422) is provided on the top of the buffer spring (421), a clamping rod (423) is provided on the inside of the pressure plate (422), a through slot (424) corresponding to the clamping rod (423) is provided on the limiting frame (420), and one end of the clamping rod (423) passes through the through slot (424) and is clamped with the clamping slot (34).

7. The auxiliary device for concrete bottom support according to claim 1, characterized in that: The placement device (5) comprises a small connecting groove (50) and a large connecting groove (51) respectively arranged at the rear end and the front end of the supporting vehicle body (1); a first placement plate (52) is arranged outside the small connecting groove (50), and an auxiliary component (53) capable of supporting and placing the V-shaped plate (40) is arranged inside the first placement plate (52); A second placement plate (54) is provided inside the large connection groove (51), and an auxiliary component (53) capable of supporting the front end V-shaped plate (40) is provided inside the second placement plate (54); The top of the second placement plate (54) is connected to the bottom of the limiting frame (420), and positioning rods (55) are provided on both sides of the second placement plate (54), and positioning grooves (56) are provided on both sides of the large connecting groove (51) and are slidably connected to the outer sides of the positioning rods (55).

8. The auxiliary device for concrete bottom support according to claim 7, characterized in that: The auxiliary component (53) includes a receiving plate (530) arranged on the inner side of the first placement plate (52), and a compression spring (531) is connected between the bottom of the receiving plate (530) and the bottom of the first placement plate (52).

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