Concrete pavement elevation control device

Abstract

The utility model discloses a concrete pavement elevation control device. The concrete pavement elevation control device comprises a leveling assembly and two supporting formworks used for being placed on the two sides of a concrete pavement. The height of the supporting template is adjustable; the leveling assembly comprises two traction components and a leveling round rod used for leveling the concrete pavement, the leveling round rod is placed on the two supporting formworks, the axis of the leveling round rod is perpendicular to the extending direction of the concrete pavement, the two traction components are connected to the two ends of the leveling round rod in a sleeving mode respectively, and the two traction components are connected to the two ends of the leveling round rod in a sleeving mode respectively. And the traction device is used for pulling the leveling round rod to horizontally roll on the two supporting templates. The height of the device can be adjusted according to specific requirements, the height of the supporting formwork is adjusted to the needed elevation, then the concrete pavement is leveled to the designed elevation through the leveling round rods, the occupied space is small, cost is low, and the device can be suitable for roads with different terrains and limited operation space.

Description

Technical Field

[0001] This utility model relates to the field of road construction equipment technology, and in particular to a concrete road surface elevation control device. Background Technology

[0002] Currently, in the construction of highway concrete pavement, elevation control often adopts the method of vibrating beams combined with steel formwork. The prefabricated steel formwork is fixedly installed on both sides of the pavement, and then concrete is poured onto the pavement. The vibrating beam is installed on the track above the steel formwork on both sides and moved laterally to level the concrete pavement. However, this method is mainly suitable for large-scale engineering projects. In general municipal engineering or small-scale construction, its application is greatly limited due to limited working space and high construction costs. Utility Model Content

[0003] To reduce costs and expand applicability, this utility model proposes a concrete pavement elevation control device comprising:

[0004] Leveling components and two support templates for placement on both sides of the concrete pavement;

[0005] The height of the support template is adjustable;

[0006] The leveling assembly includes two traction components and a leveling rod for leveling the concrete pavement. The leveling rod is placed on two support templates, and the axis of the leveling rod is perpendicular to the extension direction of the concrete pavement. The two traction components are respectively sleeved on both ends of the leveling rod for pulling the leveling rod to roll horizontally on the two support templates.

[0007] Optionally, the support template includes a first side plate structure, a second side plate structure, and a height adjustment structure;

[0008] The height adjustment structure is connected between the first side plate structure and the second side plate structure, and is used to adjust the height of the second side plate structure above the first side plate structure.

[0009] Optionally, the first side plate structure includes a first vertical plate, a first horizontal plate, and a second horizontal plate. The first horizontal plate and the second horizontal plate are respectively connected to the upper and lower ends of the first vertical plate and are located on the same side of the first vertical plate. The first horizontal plate is provided with a first through hole.

[0010] The second side plate structure includes a second vertical plate and a third horizontal plate connected to the middle of the side of the second vertical plate;

[0011] The height adjustment structure includes an adjustment rod and a plurality of first adjustment nuts. The adjustment rod is threaded at least at its lower end. The upper end of the adjustment rod is connected to the third horizontal plate. The lower end of the adjustment rod passes through the first through hole. The plurality of first adjustment nuts are threadedly connected to the adjustment rod. At least one first adjustment nut is provided on each side of the first horizontal plate.

[0012] Optionally, the height adjustment structure further includes a plurality of second adjusting nuts, the third horizontal plate is provided with a second through hole, the adjusting rod is provided with a thread at least at its upper end, the upper end of the adjusting rod passes through the second through hole, the plurality of second adjusting nuts are threadedly connected to the adjusting rod, and at least one second adjusting nut is provided on each side of the third horizontal plate.

[0013] Optionally, connecting rods are respectively connected to the end faces of the two ends of the leveling rod. The diameter of the connecting rod is smaller than that of the leveling rod, and the axis of the connecting rod is collinear with the axis of the leveling rod. The two traction components are respectively sleeved on the connecting rods at both ends of the leveling rod, and the connecting rods can rotate relative to the traction components.

[0014] Optionally, the connecting rod is provided with a limiting part for restricting the traction member from moving out of the connecting rod, and the traction member is sleeved on the connecting rod in the area between the limiting part and the leveling rod.

[0015] Optionally, the limiting part includes a limiting screw and a plurality of limiting nuts. The side of the connecting round rod is provided with a through limiting hole. The limiting screw passes through the limiting hole. The plurality of limiting nuts are threadedly connected to the limiting screw. At least one limiting nut is provided on each side of the limiting hole.

[0016] Optionally, the traction component includes a connecting part and a traction part for traction of the connecting part to move horizontally, the connecting part is provided with a through connecting hole, the connecting part is sleeved on the connecting rod through the connecting hole, and the diameter of the connecting hole is larger than the diameter of the connecting rod.

[0017] Optionally, the traction unit includes a winch, with two winches arranged side by side on the two support templates, and the winches connected to the connecting unit by ropes.

[0018] Optionally, the traction unit includes a traction rod and an operating rod, the connecting part is connected to one end of the traction rod, and the middle part of the side of the operating rod is connected to the other end of the traction rod.

[0019] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following:

[0020] The concrete pavement elevation control device provided by this utility model includes a leveling component and two support templates for placement on both sides of the concrete pavement. The height of the support templates is adjustable, allowing for height adjustment according to specific elevation requirements. This adapts to different terrains, reduces the need for customized templates, and offers good applicability and versatility. The leveling component includes two traction members and a leveling rod for leveling the concrete pavement. The leveling rod is placed on the two support templates, and its axis is perpendicular to the extension direction of the concrete pavement. The two traction members are respectively sleeved... At both ends of the leveling rod, it is used to pull the leveling rod to roll horizontally on the two supporting templates. After the height of the supporting templates is adjusted to the design elevation, the pulling component pulls the leveling rod to roll horizontally on the supporting templates, so that the concrete pavement is leveled to the design elevation. This achieves control over the flatness of the concrete surface and ensures that all areas of the concrete pavement reach the same design elevation. Moreover, compared with the vibrating beam, the leveling rod used in this application does not require the design of a track or other guiding structure. It can be placed directly on the supporting wooden board, which occupies little space and has low cost, and can be applied to roads with limited working space.

[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of a concrete pavement elevation control device provided by this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the supporting template in the diagram;

[0025] Figure 3 for Figure 1 A schematic diagram of the connecting round rod in the diagram;

[0026] Figure 4 for Figure 1 A schematic diagram of the traction component in the diagram;

[0027] Figure 5 A schematic diagram of another concrete pavement elevation control device provided by this utility model.

[0028] Explanation of icon numbers:

[0029] 100 - Concrete pavement elevation control device;

[0030] 1-Support template; 11-First side plate structure; 111-First vertical plate; 112-First horizontal plate; 113-Second horizontal plate; 12-Second side plate structure; 121-Second vertical plate; 122-Third horizontal plate; 13-Height adjustment structure; 131-Adjusting rod; 132-First adjusting nut; 133-Second adjusting nut;

[0031] 2-Leveling assembly; 21-Leveling rod; 211-Connecting rod; 22-Traction component; 221-Traction part; 2211-Winder; 2212-Traction rod; 2213-Operating lever; 222-Connecting part; 222a-Connecting hole;

[0032] 3-Limiting part; 31-Limiting screw; 32-Limiting nut. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Currently, in the construction of concrete pavement on highways, elevation control often uses a vibratory beam combined with steel formwork. The inventor discovered that this method not only requires the installation of guide rails on the steel formwork for the horizontal movement of the vibratory beam, but also results in a large structure for the vibratory beam itself, making the entire device space-consuming and costly. It is only suitable for large-scale engineering projects. To solve this technical problem, the inventor unexpectedly discovered that using a height-adjustable support formwork instead of precast steel formwork and a round rod as a leveling component instead of a vibratory beam can solve the problems of large space consumption and high cost, making it suitable for municipal engineering or small-scale construction.

[0037] Based on this, the present invention provides a concrete pavement elevation control device. Figures 1 to 4 This invention provides a specific embodiment of a concrete pavement elevation control device.

[0038] Please see Figure 1 The concrete pavement elevation control device 100 includes a leveling component 2 and two support templates 1 for placement on both sides of the concrete pavement. The height of the support templates 1 is adjustable. The leveling component 2 includes two traction components 22 and a leveling rod 21 for leveling the concrete pavement. The leveling rod 21 is placed on the two support templates 1, and the axis of the leveling rod 21 is perpendicular to the extension direction of the concrete pavement. The two traction components 22 are respectively sleeved on both ends of the leveling rod 21 for pulling the leveling rod 21 to roll horizontally on the two support templates 1.

[0039] In the technical solution provided by this utility model, the height of the support template 1 is adjustable, so that the height can be adjusted according to the specific elevation requirements to the required elevation. It can adapt to different terrains, reduce the customization requirements of the template, reduce production costs, and has good applicability and versatility. Moreover, after the height of the support template 1 is adjusted, the leveling rod 21 is pulled horizontally on the support template 1 by the traction component 22 to level the concrete pavement, so that the concrete pavement is leveled to the design elevation, realizing the flatness control of the concrete surface and ensuring that all areas of the concrete pavement reach the same design elevation. In addition, the leveling rod 21 used in this application does not require the design of a track or other guiding structure compared to the vibrating beam. It can be directly placed on the support wooden board. The leveling rod 21 occupies little space and has low cost, and can be used on roads with limited working space.

[0040] It should be noted that the diameter of the leveling rod 21 is not specifically limited and can be designed according to actual needs. Moreover, in order to reduce weight and cost, the leveling rod 21 is hollow inside. In this embodiment, the leveling rod 21 is made of a steel pipe with an outer diameter of 114mm and a wall thickness of 4mm, and 10mm steel plates are welded to both ends of the steel pipe to form a hollow rod.

[0041] Please see Figure 2 In some embodiments, the support template 1 includes a first side plate structure 11, a second side plate structure 12, and a height adjustment structure 13. The height adjustment structure 13 is connected between the first side plate structure 11 and the second side plate structure 12, and is used to adjust the raising and lowering of the second side plate structure 12 above the first side plate structure 11. The first side plate structure 11 is placed on the road surface and supports the second side plate structure 12. By adjusting the raising and lowering height of the second side plate structure 12 relative to the first side plate structure 11, it can quickly adapt to the needs of different construction scenarios without affecting the load-bearing function of the first side plate structure 11.

[0042] Specifically, in some embodiments, the first side plate structure 11 includes a first vertical plate 111, a first horizontal plate 112, and a second horizontal plate 113. The first horizontal plate 112 and the second horizontal plate 113 are respectively connected to the upper and lower ends of the first vertical plate 111 and are located on the same side of the first vertical plate 111. The first horizontal plate 112 is provided with a first through hole. The second side plate structure 12 includes a second vertical plate 121 and a third horizontal plate 122 connected to the middle of the side of the second vertical plate 121. The height adjustment structure 13 includes an adjustment rod 131 and a plurality of first adjustment nuts 132. The adjustment rod 131 is threaded at least at its lower end. The upper end of the adjustment rod 131 is connected to the third horizontal plate 122. The lower end of the adjustment rod 131 passes through the first through hole. The plurality of first adjustment nuts 132 are threadedly connected to the adjustment rod 131. At least one first adjustment nut 132 is provided on each side of the first horizontal plate 112.

[0043] In practical applications, the working principle of the height adjustment structure 13 near the first horizontal plate 112 is as follows:

[0044] For ease of explanation, the first adjusting nut 132 located above the first horizontal plate 112 is abbreviated as the "upper nut," and the first adjusting nut 132 located below the first horizontal plate 112 is abbreviated as the "lower nut." When it is necessary to raise the second side plate structure 12, the lower nut is rotated downwards so that the distance between the upper nut and the lower nut is greater than the thickness of the first horizontal plate 112. After the lower nut reaches the appropriate position on the adjusting rod 131, the rotation of the lower nut is stopped, and the upper nut is rotated downwards. At this time, the upper nut is in contact with the first horizontal plate 112 and remains stationary in the height direction. Under the action of the threaded connection, the adjusting rod 131 will move upwards in the height direction, driving the second side plate structure 12 to move upwards. At the same time, the lower nut moves upwards under the action of the adjusting rod 131 until it abuts against the first horizontal plate 112, thereby completing the upward adjustment of the second side plate structure 12. When the second side plate needs to be lowered, rotate the upper nut upwards so that the distance between the upper nut and the lower nut is greater than the thickness of the first horizontal plate 112. At this time, the upper nut abuts against the first horizontal plate 112 and remains stationary in the height direction, while the adjusting rod 131 moves downwards under the action of threaded connection and gravity, causing the second side plate structure 12 to move downwards. After the adjusting rod 131 moves downwards to the appropriate position, rotate the lower nut upwards so that the lower nut abuts against the first horizontal plate 112, thereby completing the downward adjustment of the second side plate structure 12.

[0045] It is worth mentioning that, in order to ensure that the supporting template 1 can also block the concrete, the side of the second vertical plate 121 facing away from the concrete is at least partially attached to the side of the first vertical plate 111 close to the concrete. Moreover, this design will not interfere with the height adjustment of the second side plate structure 12.

[0046] Specifically, in some embodiments, the height adjustment structure 13 further includes a plurality of second adjusting nuts 133, the third horizontal plate 122 is provided with a second through hole, the adjusting rod 131 is provided with a thread at least at its upper end, the upper end of the adjusting rod 131 passes through the second through hole, the plurality of second adjusting nuts 133 are threadedly connected to the adjusting rod 131, and at least one second adjusting nut 133 is provided on each side of the third horizontal plate 122.

[0047] In practical applications, the working principle of the height adjustment structure 13 near the third horizontal plate 122 is as follows:

[0048] For ease of explanation, the second adjusting nut 133 located above the third horizontal plate 122 is referred to as the "upper nut," and the second adjusting nut 133 located below the third horizontal plate 122 is referred to as the "lower nut." When it is necessary to raise the second side plate structure 12, rotate the upper nut upward to the appropriate position, and then rotate the lower nut upward to move the third horizontal plate 122 upward until it abuts against the upper nut, thereby completing the upward adjustment of the second side plate structure 12. When it is necessary to lower the second side plate, rotate the lower nut downward to the appropriate position. At this time, the second horizontal plate 113 will move to the appropriate position under the action of gravity along with the lower nut, and then rotate the upper nut downward until it abuts against the third horizontal plate 122, thereby completing the downward adjustment of the second side plate structure 12.

[0049] It is worth mentioning that the height adjustment structure 13 of this application can be adjusted at both the first horizontal plate 112 and the third horizontal plate 122. In this way, the height can be coarsely adjusted at the third horizontal plate 122 first, and then finely adjusted at the first horizontal plate 112, which can reduce the number of repeated corrections. In addition, when adjusting the first horizontal plate 112, the second adjusting nut 133 at the connection between the adjusting rod 131 and the third horizontal plate 122 can be used as a fastener to improve the connection stability. When adjusting the third horizontal plate 122, the first adjusting nut 132 at the connection between the adjusting rod 131 and the first horizontal plate 112 can also be used as a fastener to improve the connection stability.

[0050] It should be noted that the thread range of the upper and lower ends of the adjusting rod 131 can be set according to specific requirements, or a screw can be used as the adjusting rod 131.

[0051] Specifically, please refer to Figure 1 and Figure 3 In some embodiments, connecting rods 211 are respectively connected to the end faces of the leveling rod 21. The diameter of the connecting rods 211 is smaller than that of the leveling rod 21, and the axis of the connecting rods 211 is collinear with that of the leveling rod 21. Two traction members 22 are respectively sleeved on the connecting rods 211 at both ends of the leveling rod 21, and the connecting rods 211 can rotate relative to the traction members 22. By sleeved on the smaller diameter connecting rods 211, the sliding friction between the traction members 22 and the connecting rods 211 during rotational engagement can be reduced. Furthermore, since the connecting rods 211 and the leveling rod 21 are coaxially arranged, it can be ensured that the traction members 22 will not generate additional friction or jamming due to axial deviation during traction.

[0052] Specifically, please refer to Figure 3 In some embodiments, the connecting rod 211 is provided with a limiting part 3 for restricting the traction member 22 from moving out of the connecting rod 211. The traction member 22 is sleeved on the connecting rod 211 in the area between the limiting part 3 and the leveling rod 21. The limiting part 3 can prevent the traction member 22 from falling off and improve safety.

[0053] Specifically, please refer to Figure 3 In some embodiments, the limiting part 3 includes a limiting screw 31 and a plurality of limiting nuts 32. The side of the connecting round rod 211 is provided with a through limiting hole. The limiting screw 31 passes through the limiting hole. The plurality of limiting nuts 32 are threadedly connected to the limiting screw 31. At least one limiting nut 32 is provided on each side of the limiting hole. The limiting nuts 32 on both sides achieve the limiting function of the traction component 22. In addition, since the limiting nuts 32 and the limiting screw 31 are threadedly connected, the limiting part 3 can be completely disassembled, so that the traction component 22 can be removed for repair or replacement with a different traction component 22.

[0054] Specifically, in some embodiments, the traction member 22 includes a connecting portion 222 and a traction portion 221 for traction of the connecting portion 222 to move horizontally. The connecting portion 222 has a through connecting hole 222a. The connecting portion 222 is sleeved onto the connecting rod 211 through the connecting hole 222a. The diameter of the connecting hole 222a is larger than the diameter of the connecting rod 211. Specifically, the difference between the diameter of the connecting hole 222a and the diameter of the connecting rod 211 is between 1 cm and 2 cm. The diameter of the connecting rod 211 facilitates its rotation relative to the connecting part 222, thereby facilitating the horizontal rolling of the leveling rod 21 on the support template 1 under the traction of the traction member 22. It should be noted that the specific shape of the connecting part 222 is not limited, as long as a through connecting hole 222a can be opened to serve the connecting function. In this embodiment, the connecting part 222 is a steel plate. It is also worth mentioning that the limiting part 3 provided in this application can adjust the number of limiting nuts 32 according to the diameter of the connecting hole 222a, which has good applicability.

[0055] Specifically, please refer to Figure 4 In some embodiments, the traction unit 221 includes winches 2211, with two winches 2211 arranged side-by-side on the two supporting templates 1. The winches 2211 are connected to the connecting unit 222 via ropes. In actual use, the two winches 2211 can be started simultaneously to achieve synchronous traction at both ends of the leveling rod 21, ensuring that both ends are subjected to force simultaneously and avoiding tilting or imbalance caused by unilateral force. In addition, the two winches 2211 can also adjust the traction speed and tension in real time according to the actual situation to ensure that the force on both ends of the leveling rod 21 is uniform.

[0056] Specifically, in some embodiments, the traction unit 221 includes a traction rod 2212 and an operating rod 2213. The connecting part 222 is connected to one end of the traction rod 2212, and the middle part of the side of the operating rod 2213 is connected to the other end of the traction rod 2212. By synchronously traction of the operating rods 2213 on both sides of the road, the leveling rod 21 is driven to roll horizontally on the support template 1, thereby realizing the elevation control and leveling of the concrete pavement.

[0057] Specifically, please refer to Figure 5 In some embodiments, a connecting rod connects the two operating levers 2213, and a winch 2211 is provided on one longitudinal side of the concrete pavement. The winch 2211 is connected to the connecting rod via a rope. In practical applications, the winch 2211 winds up the rope, causing the horizontal bar and operating levers 2213 to move horizontally, thereby pulling the leveling rod 21 to roll horizontally on the support template 1, achieving elevation control and leveling of the concrete pavement.

[0058] Specifically, in some embodiments, the distance between the two supporting templates 1 is less than 12m. This avoids the center position from sagging due to the weight of the leveling rod 21, which would affect the precise control of the center elevation of the concrete pavement.

[0059] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A concrete pavement elevation control device, characterized by, The leveling assembly and two support templates for placing on both sides of the concrete pavement are included; The height of the support template is adjustable; The leveling assembly includes two traction members and a leveling round bar for leveling the concrete pavement, the leveling round bar is placed on the two support templates, the axis of the leveling round bar is perpendicular to the extension direction of the concrete pavement, the two traction members are respectively sleeved on both ends of the leveling round bar for pulling the leveling round bar to horizontally roll on the two support templates.

2. The concrete pavement elevation control device of claim 1, wherein, The support template includes a first side plate structure, a second side plate structure and a height adjusting structure; The height adjusting structure is connected between the first side plate structure and the second side plate structure for adjusting the second side plate structure to rise and fall above the first side plate structure.

3. The concrete pavement elevation control device of claim 2, wherein, The first side plate structure includes a first vertical plate, a first horizontal plate and a second horizontal plate, the first horizontal plate and the second horizontal plate are respectively connected to the upper and lower ends of the first vertical plate and are located on the same side of the first vertical plate, and the first horizontal plate is provided with a first through hole; The second side plate structure includes a second vertical plate and a third horizontal plate connected to the middle of the side surface of the second vertical plate; The height adjusting structure includes an adjusting rod and a plurality of first adjusting nuts, the adjusting rod is provided with threads at least at the lower end, the upper end of the adjusting rod is connected to the third horizontal plate, the lower end of the adjusting rod is provided through the first through hole, a plurality of the first adjusting nuts are threadedly connected to the adjusting rod, and at least one first adjusting nut is provided on both sides of the first horizontal plate.

4. The concrete pavement elevation control device of claim 3, wherein, The height adjusting structure further includes a plurality of second adjusting nuts, the third horizontal plate is provided with a second through hole, the adjusting rod is provided with threads at least at the upper end, the upper end of the adjusting rod is provided through the second through hole, a plurality of the second adjusting nuts are threadedly connected to the adjusting rod, and at least one second adjusting nut is provided on both sides of the third horizontal plate.

5. The concrete pavement elevation control device of claim 1, wherein, The end surface of the leveling round bar is respectively connected with a connecting round bar, the diameter of the connecting round bar is smaller than that of the leveling round bar, the axis of the connecting round bar is collinear with that of the leveling round bar, the two traction members are respectively sleeved on the connecting round bars at both ends of the leveling round bar, and the connecting round bar can rotate relative to the traction member.

6. The concrete pavement elevation control device of claim 5, wherein, A limiting portion is arranged on the connecting round bar for limiting the traction member from moving out of the connecting round bar, and the traction member is sleeved on the connecting round bar in the area between the limiting portion and the leveling round bar.

7. The concrete pavement elevation control device of claim 6, wherein, The limiting portion includes a limiting screw and a plurality of limiting nuts, the side surface of the connecting round bar is provided with a limiting hole penetrating through, the limiting screw is provided through the limiting hole, a plurality of the limiting nuts are threadedly connected to the limiting screw, and at least one limiting nut is provided on both sides of the limiting hole.

8. A concrete pavement elevation control device as claimed in any one of claims 5 to 7, wherein, The traction member includes a connecting portion and a traction portion for pulling the connecting portion to move horizontally, the connecting portion is provided with a connecting hole penetrating through, the connecting portion is sleeved on the connecting round bar through the connecting hole, and the diameter of the connecting hole is larger than that of the connecting round bar.

9. The concrete pavement elevation control device of claim 8, wherein, The traction part comprises winches, two of which are arranged side by side on the two support templates respectively, and the winches are connected with the connecting part through ropes.

10. The concrete pavement elevation control device of claim 8, wherein, The traction part comprises a traction rod and an operating rod, one end of the traction rod is connected with the connecting part, and the other end of the traction rod is connected with the middle part of the side of the operating rod.

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