Concrete film covering device and leveling equipment

Abstract

The invention belongs to the technical field of concrete construction equipment, and provides a concrete film covering device and leveling equipment, the concrete film covering device comprises a mounting part, a device frame body and a film cylinder assembly; the mounting part is used for mounting the concrete film covering device on external equipment; the device frame body is arranged on the mounting part and is provided with an adjusting mechanism; the film cylinder assembly is arranged at the movable end of the adjusting mechanism, and the relative distance between the film cylinder assembly and the device frame body can be adjusted through the adjusting mechanism. And a film cylinder mounting position for mounting a film cylinder is arranged on the film cylinder assembly. According to the scheme, the whole concrete film covering device can be installed on external equipment, and the film covering operation of the film cylinder assembly can be better separated from manual control, so that the influence of human factors in the concrete film covering operation process is conveniently reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of concrete construction equipment, and more specifically, relates to a concrete covering device and a leveling device. Background Technology

[0002] In concrete construction, membrane covering is the next step after leveling. Currently, the main method of membrane covering relies on steel bars hooking onto the membrane cylinder, with workers holding the steel bars and rolling the cylinder across the finished concrete surface to achieve the covering. However, this method has several drawbacks. First, because workers cannot walk in a perfectly straight line, the membrane is prone to wrinkles during the covering process, making it difficult to remove after curing. Therefore, workers are usually required to straighten the membrane every so often and continue covering, resulting in low efficiency and wasting resources due to worker movement. Second, due to the limited structure and strength of workers, they can typically only handle membrane cylinders of 1.2 meters or less. For cylinders larger than 1.2 meters, the increased weight makes manual operation unsuitable, and batch covering further limits efficiency and cost. Summary of the Invention

[0003] In order to overcome at least one of the disadvantages of the prior art, the purpose of this application is to provide a concrete covering device and a leveling device.

[0004] The technical means adopted in this application to solve the above-mentioned technical problems are:

[0005] On one hand, the embodiments of this application provide a concrete covering device, including:

[0006] Mounting section, used for mounting the concrete covering device on external equipment;

[0007] A device frame is mounted on the mounting part, and an adjustment mechanism is provided on the device frame.

[0008] A membrane tube assembly is disposed at the movable end of the adjustment mechanism, and the relative distance between the membrane tube assembly and the device frame can be adjusted by the adjustment mechanism; the membrane tube assembly is provided with a membrane tube mounting position for installing the membrane tube.

[0009] In the embodiments of this application, the installation part can be used to install the entire concrete covering device on an external device, and the adjustment mechanism can be used to regulate the state of the membrane cylinder assembly, so that the covering operation of the membrane cylinder assembly can be better separated from manual control, thereby reducing the impact of human factors on the concrete covering operation and improving work efficiency.

[0010] In some embodiments, the mounting unit includes a first frame and a second frame, the first frame being used for mounting external equipment, and the device frame being mounted on the second frame;

[0011] The second frame can rotate relative to the first frame.

[0012] In the embodiments of this application, by setting a first frame and a second frame that can rotate relative to each other, the device frame can swing relative to the external equipment in a plane after being installed on the external equipment, thereby better adapting to the force requirements of the film tube during the film coating process.

[0013] In some embodiments, the membrane tube assembly includes a membrane tube suspension pipe, with membrane tube supports at both ends of the suspension pipe, and a membrane tube mounting position is formed between two membrane tube supports;

[0014] The relative position of the membrane tube support on the membrane tube hanger is adjustable.

[0015] In the embodiments of this application, the membrane tube support is adjustablely mounted on the membrane tube hanging pipe, so that the position between the membrane tube support and the membrane tube hanging pipe can be adjusted to adapt to the installation and use of membrane tubes with different length requirements.

[0016] In some embodiments, the membrane tube assembly further includes a membrane tube, and the end of the membrane tube support is provided with a top cone facing inward;

[0017] The end of the membrane tube comes into contact with the top of the cone.

[0018] In the embodiments of this application, the top cone facilitates the installation of the membrane tube on the membrane tube support and allows for more coordinated rotation of the membrane tube during the coating process.

[0019] In some embodiments, a flexible traction member is provided on the membrane tube suspension pipe, one end of which is connected to the membrane tube suspension pipe, and the other end is used to connect to external equipment.

[0020] In the embodiments of this application, the state of the membrane tube hanging pipe can be restricted by the flexible traction member, so as to avoid excessive stretching of the membrane tube assembly by the adsorption force between the film and the ground during the film covering process.

[0021] In some embodiments, the adjustment mechanism includes a traction rope, one end of which is connected to the membrane cylinder assembly, such that the membrane cylinder assembly is suspended on the device frame.

[0022] The other end of the traction rope is equipped with a reciprocating controller for controlling the operation of the traction rope.

[0023] In the embodiments of this application, the traction rope facilitates the suspension of the membrane cylinder assembly on the device frame, making the lifting and lowering of the membrane cylinder assembly more natural; and the reciprocating controller can be used to control the operation of the traction rope, thereby improving the automation level of the film covering operation.

[0024] In some embodiments, a length adjustment device is connected between the traction rope and the membrane tube assembly.

[0025] In the embodiments of this application, the length adjustment device facilitates the adjustment of the relative distance between the traction rope and the membrane tube assembly, thereby facilitating the adjustment of the parallel state of the membrane tube.

[0026] In some embodiments, the device frame includes a first rod and a second rod disposed at one end of the first rod, wherein the length direction of the first rod is perpendicular to the length direction of the second rod;

[0027] The traction rope includes a first rope segment disposed on the first rod, a second rope segment disposed on the second rod, and a third rope segment extending from the second rod and connected to the membrane cylinder assembly; the first rope segment and the second rope segment, and the second rope segment and the third rope segment are provided with a sliding transition.

[0028] In the embodiments of this application, the second rod facilitates the extension of the traction rope, thereby making the installation of the membrane cylinder assembly on the device frame more stable; and by setting the segments of the traction rope to a sliding transition, the movement of the traction rope when adjusting the membrane cylinder assembly can be smoother and more stable.

[0029] In some embodiments, a hand-operated rope is provided on the traction rope.

[0030] In the embodiments of this application, the hand-operated rope facilitates timely intervention by operators during the film-coating process, making the overall application more flexible.

[0031] In some embodiments, a counterweight is provided at the other end of the first rod.

[0032] In the embodiments of this application, the counterweight block can be used to balance the weight of the membrane tube assembly.

[0033] On the other hand, the embodiments of this application provide a leveling device, on which a concrete covering device as described above is provided.

[0034] In the embodiments of this application, by installing the concrete covering device on the leveling equipment, the connection between leveling and covering operations in concrete construction can be improved, thereby increasing work efficiency; moreover, the leveling equipment can replace manual labor, resulting in better overall benefits.

[0035] In some embodiments, the leveling device is provided with an anti-pitch mechanism, and the mounting part is mounted on the leveling device based on the location of the instantaneous center.

[0036] In the embodiments of this application, by setting the anti-pitch mechanism and placing the connection point between the mounting part and the leveling equipment near the instantaneous center position, the impact of the leveling equipment on the film covering operation when it travels on unleveled concrete road sections can be effectively reduced, thus facilitating the improvement of the film covering operation quality. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a structural schematic diagram of a concrete covering device as exemplified in this application.

[0039] Figure 2 This is a schematic diagram of the installation part in one example of this application.

[0040] Figure 3 This is a schematic diagram of the installation part in one example of this application.

[0041] Figure 4 This is a schematic diagram of the structure at the intersection of the first and second rods in one example of this application.

[0042] Figure 5 This is a schematic diagram of the installation of the membrane tube support as an example of this application.

[0043] Figure 6 This is a schematic diagram of the leveling equipment as an example of one of the embodiments of this application.

[0044] Marker explanation:

[0045] 1-Installation section, 11-First frame, 111-First ring, 12-Second frame, 121-Second ring;

[0046] 2-Equipment frame, 21-Adjusting mechanism, 211-Traction rope, 2111-First rope segment, 2112-Second rope segment, 2113-Third rope segment, 212-Reciprocating controller, 213-Hand-operated rope, 22-First rod, 221-Stop block, 23-Second rod, 24-Pulley, 25-Transfer slider, 26-Line lock, 27-Counterweight;

[0047] 3-Membrane tube assembly, 31-Membrane tube lifting pipe, 311-Flexible traction component, 32-Membrane tube support, 321-Top cone, 33-Locking component;

[0048] 4-Membrane tube;

[0049] 5-Length adjustment device;

[0050] 6-Leveling equipment. Detailed Implementation

[0051] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0052] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. Similar reference numerals and letters denote similar items in the following figures; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Currently, in concrete construction, after leveling the concrete, a membrane covering is usually applied to the surface. The conventional method involves workers fitting a membrane tube over the reinforcing steel, attaching the membrane to the concrete surface, and then walking on the surface to pull the tube to cover other areas. However, this method suffers from several drawbacks. Walking on the concrete surface can damage the leveled surface, and manual operation is limited by experience; it's also difficult to walk in a straight line for the membrane covering. Furthermore, on large concrete surfaces, the width of a single membrane application is often limited by the worker's strength, resulting in low overall efficiency and inconsistent quality.

[0054] Based on the problems existing in the prior art, the present embodiment aims to provide a concrete coating device and leveling equipment, which can facilitate the reduction or even avoidment of human intervention in the concrete coating process, thereby improving the efficiency and construction quality of the coating operation.

[0055] like Figures 1 to 6 As shown, this embodiment provides a concrete covering device, including:

[0056] Mounting part 1 is used for mounting the concrete covering device on an external device;

[0057] The device frame 2 is mounted on the mounting part 1, and the device frame 2 is provided with an adjustment mechanism 21.

[0058] The membrane tube assembly 3 is disposed at the movable end of the adjustment mechanism 21, and the relative distance between the membrane tube assembly 3 and the device frame 2 can be adjusted by the adjustment mechanism 21; the membrane tube assembly 3 is provided with a membrane tube mounting position for mounting the membrane tube 4.

[0059] In some embodiments, the external device can be understood as a device with an independent walking mechanism, such as a vehicle driven by a power system, including but not limited to rail transport vehicles, leveling vehicles, etc. Thus, when used in conjunction, the movement of the external device can drive the concrete covering device to move, allowing the path taken during the covering process to be straighter, reducing wrinkle formation, and thereby improving the covering quality.

[0060] In some embodiments, the adjustment mechanism 21 adjusts the membrane tube assembly 3 in at least two operating modes: first, the adjustment mechanism 21 causes the membrane tube assembly 3 to move away from the device frame 2, thereby achieving contact between the membrane tube 4 and the concrete surface; second, the adjustment mechanism 21 drives the membrane tube assembly 3 to rise closer to the device frame 2, thereby achieving separation between the membrane tube 4 and the concrete surface.

[0061] In some embodiments, the adjustment mechanism 21 is further used to adjust the position height of the membrane tube assembly 3, including adjusting the position height of the membrane tube assembly 3 to adapt to the diameter and width of the membrane tube 4 of different specifications; and adjusting the position height when the diameter and width of the membrane tube 4 decreases due to the decreasing amount of film during continuous film coating.

[0062] The installation part 1 can be used to install the entire concrete covering device on external equipment, so that the concrete covering device can be used in conjunction with external equipment. The adjustment mechanism 21 can be used to regulate the state of the membrane tube assembly 3, so that the covering operation of the membrane tube assembly 3 can be better decoupled from manual control, thereby reducing the impact of human factors on the concrete covering operation and improving work efficiency and construction quality.

[0063] As one example of its application, such as Figure 1 , Figure 6 As shown, the mounting part 1 includes a first frame 11 and a second frame 12. The first frame 11 is used for mounting external equipment, and the device frame 2 is mounted on the second frame 12.

[0064] The second frame 12 can rotate relative to the first frame 11.

[0065] In some embodiments, such as Figure 2 , Figure 3 As shown, a first ring 111 is provided on the first frame 11, and a second ring 121 is provided on the second frame 12. The first ring 111 and the second ring 121 are fitted together and installed together. The rotation between the first ring 111 and the second ring 121 is achieved by the mutual rotation between the first ring 111 and the second ring 121.

[0066] In some embodiments, the first frame 11 and the second frame 12 may also be configured as a set of shaft and shaft hole, thereby facilitating relative rotational movement between the first frame 11 and the second frame 12.

[0067] In some embodiments, a bearing is provided between the first frame 11 and the second frame 12, thereby allowing for smoother relative rotation between the first frame 11 and the second frame 12.

[0068] By configuring the first frame 11 and the second frame 12, which are relatively rotatable, the device frame 2 can swing relative to the external equipment on a plane after being installed on the external equipment, so as to reduce the impact of the external equipment's bumps and better adapt to the stress requirements of the film tube during the film coating process.

[0069] As one example of its application, such as Figure 1 , Figure 5 As shown, the membrane tube assembly 3 includes a membrane tube hanging pipe 31, and membrane tube supports 32 are provided at both ends of the membrane tube hanging pipe 31, forming a membrane tube mounting position between the two membrane tube supports 32;

[0070] The relative position of the membrane tube support 32 on the membrane tube hanging pipe 31 is adjustable.

[0071] In some embodiments, such as Figure 5 As shown, the membrane tube support 32 is slidably mounted on the membrane tube hanging pipe 31, and is provided with a locking member 33 for fixing the relative position between the membrane tube support 32 and the membrane tube hanging pipe 31.

[0072] In some embodiments, the membrane tube support 32 and the membrane tube hanging tube 31 are coaxially fitted together to improve the alignment accuracy of the membrane tube 4 after installation.

[0073] In some embodiments, when the cross-sectional shape of the membrane tube 31 is circular, the locking member 33 is configured as a hand-tightening nut.

[0074] In some embodiments, such as Figure 5 As shown, when the cross-sectional shape of the membrane tube 31 is elliptical or polygonal, the locking member 33 is provided with a hand-tightening bolt.

[0075] By adjusting the membrane tube support 32 onto the membrane tube hanging pipe 31, the position between the membrane tube support 32 and the membrane tube hanging pipe 31 can be adjusted to accommodate the installation and use of membrane tubes 4 with different length requirements.

[0076] As one example of its application, such as Figure 1 , Figure 5 As shown, the membrane tube assembly 3 also includes a membrane tube 4, and the end of the membrane tube support 32 is provided with a top cone 321 facing inward;

[0077] The end of the membrane tube 4 is in contact with the top cone 321.

[0078] In some embodiments, the top cone 321 is rotatably mounted on the membrane support 32 about its central axis.

[0079] The top cone 321 facilitates the installation of the membrane tube 4 on the membrane tube support 32 and allows for more coordinated and smooth rotation of the membrane tube 4 during the coating process.

[0080] As one example of its application, such as Figure 1 , Figure 6 As shown, a flexible traction member 311 is provided on the membrane tube hanging pipe 31. One end of the flexible traction member 311 is connected to the membrane tube hanging pipe 31, and the other end is used to connect to external equipment.

[0081] In some embodiments, the flexible traction member 311 is hinged to the membrane tube suspension pipe 31, and the connection point between the flexible traction member 311 and the membrane tube suspension pipe 31 is located at the middle position of the membrane tube suspension pipe 31. The flexible traction member 311 is also hinged to the external equipment.

[0082] In some embodiments, the flexible traction member 311 may be configured as a wire rope, hemp rope, etc.

[0083] The flexible traction member 311 can restrict the state of the membrane tube hanging pipe 31 to avoid excessive adhesion between the film and the ground during film covering, which would cause excessive pulling on the membrane tube assembly 3 and improve the reliability of the film covering operation.

[0084] As one example of its application, such as Figure 1 As shown, the adjustment mechanism 21 includes a traction rope 211, one end of which is connected to the membrane tube assembly 3, so that the membrane tube assembly 3 is suspended on the device frame 2.

[0085] The other end of the traction rope 211 is provided with a reciprocating controller 212 for controlling the operation of the traction rope 211.

[0086] In some embodiments, the traction rope 211 may be a wire rope, hemp rope, etc.

[0087] In some embodiments, such as Figure 1 As shown, the connection end between the traction rope 211 and the reciprocating controller 212 is configured as a single rope structure, and the connection end between the traction rope 211 and the membrane tube assembly 3 is configured as one or more rope segments, so that the reciprocating controller 212 can perform centralized pulling control on the traction rope 211, and the force on the membrane tube assembly 3 under the pulling action of the traction rope 211 can be more balanced.

[0088] In some embodiments, such as Figure 1As shown, the reciprocating controller 212 is configured as a telescopic cylinder, and the traction rope 211 is connected to the movable end of the reciprocating controller 212.

[0089] In some embodiments, the reciprocating controller 212 is configured as a lead screw assembly, which includes a motor, a lead screw, and a slider mounted on the lead screw; in this case, the motor drives the lead screw to rotate, and the lead screw drives the slider to reciprocate, and the traction rope 211 is connected to the slider.

[0090] The traction rope 211 facilitates the suspension of the membrane cylinder assembly 3 on the device frame 2, making the lifting and lowering of the membrane cylinder assembly 3 more natural. The reciprocating controller 212 can be used to control the operation of the traction rope 211, thereby improving the automation of the film covering operation.

[0091] As one example of its application, such as Figure 1 As shown, a length adjustment device 5 is connected between the traction rope 211 and the membrane tube assembly 3.

[0092] In some embodiments, the length adjustment device 5 is configured as a threaded connection mechanism. For example, a bolt is connected to the end of the traction rope 211, and a corresponding screw hole is provided on the membrane tube assembly 3. The relative distance between the traction rope 211 and the membrane tube assembly 3 can be adjusted by installing the connecting bolt in the screw hole.

[0093] In some embodiments, the length adjustment device 5 is configured as a turnbuckle.

[0094] The length adjustment device 5 allows for easy adjustment of the relative distance between the traction rope 211 and the membrane tube assembly 3, thereby facilitating the adjustment of the parallel state of the membrane tube 4.

[0095] As one example of its application, such as Figure 1 , Figure 4 As shown, the device frame 2 includes a first rod 22 and a second rod 23 disposed at one end of the first rod 22, wherein the length direction of the first rod 22 is perpendicular to the length direction of the second rod 23;

[0096] The traction rope 211 includes a first rope segment 2111 disposed on the first rod body 22, a second rope segment 2112 disposed on the second rod body 23, and a third rope segment 2113 extending from the second rod body 23 and connected to the membrane tube assembly 3; the first rope segment 2111 and the second rope segment 2112, and the second rope segment 2112 and the third rope segment 2113 are provided with a sliding transition.

[0097] In some embodiments, such as Figure 1 As shown, both the first rod 22 and the second rod 23 are straight rods, and the first rod 22 and the second rod 23 form a "T" shape after being connected.

[0098] In some embodiments, pulleys 24 are provided at the intersection of the first rod 22 and the second rod 23, and at the end of the second rod 23. The traction rope 211 is wound around the pulleys 24 and changes in various directions are achieved through the pulleys 24.

[0099] In some embodiments, the pulley 24 can also be replaced by a groove; for example, grooves can be made on the first rod 22 and the second rod 23, and the traction rope 211 can be placed in the groove. Then, the corner of the groove can be chamfered, which can also play a sliding guiding role.

[0100] The second rod 23 facilitates the extension of the traction rope 211, thereby making the installation of the membrane tube assembly 3 on the device frame 2 more stable. Furthermore, by setting the segments of the traction rope 211 to a sliding transition manner, the movement of the traction rope 211 when adjusting the membrane tube assembly 3 can be smoother and more stable.

[0101] As one example of its application, such as Figure 1 As shown, a hand-operated rope 213 is provided on the traction rope 211.

[0102] In some embodiments, the hand-operated rope 213 may be a steel wire rope, hemp rope, etc.

[0103] In some embodiments, such as Figure 1 As shown, a transfer slider 25 is provided on the device frame 2, and the traction rope 211 passes through the transfer slider 25 and then comes out from the second rod 23; the connection point between the hand-pulled rope 213 and the traction rope 211 is located in front of the transfer slider 25, so that when the hand-pulled rope 213 is manually pulled, the traction rope 211 can still slide on the preset trajectory.

[0104] In some embodiments, the transfer slider 25 is disposed on the mounting portion 1.

[0105] In some embodiments, such as Figure 4As shown, a stop block 221 is provided on the first rod body 22. The stop block 221 is located in front of the second rod body 23 and behind the transfer slider 25. A locking device 26 for connecting the two second rope segments 2112 is provided on the traction rope 211. The stop block 221 is located behind the locking device 26.

[0106] The hand-operated rope 213 allows operators to intervene in the film covering process in a timely manner, making the overall application more flexible. The stop block 221 and the locking device 26 provide a certain degree of protection, facilitating the installation of the traction rope 211 on the device frame 2 and preventing the film cylinder assembly 3 from detaching directly from the device frame 2.

[0107] As one example of its application, such as Figure 1 As shown, a counterweight 27 is provided on the other end of the first rod 22.

[0108] The counterweight 27 can be used to balance the weight at one end of the membrane tube assembly 3, especially when the concrete covering device is used on external equipment with anti-pitch function.

[0109] On the other hand, such as Figure 6 As shown, this embodiment also provides a leveling device that can be used to level the surface of concrete, wherein the leveling device 6 is equipped with a concrete coating device as described above.

[0110] By installing the concrete covering device on the leveling equipment 6, the connection between leveling and covering operations in concrete construction can be improved, thus increasing work efficiency; moreover, the leveling equipment 6 can replace manual labor, resulting in better overall benefits.

[0111] As one application example, the leveling device 6 is equipped with an anti-pitch mechanism, and the mounting part 1 is mounted on the leveling device 6 based on the position of the instantaneous center.

[0112] In some embodiments, the specific configuration of the anti-pitch mechanism can be found in the prior art, and will not be described in detail here. The anti-pitch mechanism includes a hinge point on the leveling device 6, so that the leveling device 6 can maintain balance as much as possible in forward and backward pitch states; and the connection point between the mounting part 1 and the leveling device 6 is located close to this hinge point.

[0113] By setting the anti-pitch mechanism and placing the connection point between the mounting part 1 and the leveling device 6 near the instantaneous center position, the impact of the leveling device 6 on the film covering operation when it travels on an unleveled concrete road section can be effectively reduced, thus improving the quality of the film covering operation.

[0114] The above description is merely a specific embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should also be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0115] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A concrete covering device, characterized in that, include: Mounting section, used for mounting the concrete covering device on external equipment; A device frame is mounted on the mounting part, and an adjustment mechanism is provided on the device frame. A membrane tube assembly is disposed at the movable end of the adjustment mechanism, and the relative distance between the membrane tube assembly and the device frame can be adjusted by the adjustment mechanism; the membrane tube assembly is provided with a membrane tube mounting position for installing the membrane tube.

2. The concrete covering device according to claim 1, characterized in that, The installation unit includes a first frame and a second frame, the first frame being used for installation with external equipment, and the device frame being mounted on the second frame; The second frame can rotate relative to the first frame.

3. The concrete covering device according to claim 1 or 2, characterized in that, The membrane tube assembly includes a membrane tube suspension pipe, and membrane tube supports are provided at both ends of the membrane tube suspension pipe, forming a membrane tube mounting position between two membrane tube supports; The relative position of the membrane tube support on the membrane tube hanger is adjustable.

4. The concrete covering device according to claim 3, characterized in that, The membrane tube assembly also includes a membrane tube, and the end of the membrane tube support is provided with a top cone facing inward; The end of the membrane tube comes into contact with the top of the cone.

5. The concrete covering device according to claim 4, characterized in that, The membrane tube is equipped with a flexible traction component, one end of which is connected to the membrane tube and the other end is used to connect to external equipment.

6. The concrete covering device according to claim 1 or 5, characterized in that, The adjustment mechanism includes a traction rope, one end of which is connected to the membrane cylinder assembly, so that the membrane cylinder assembly is suspended on the device frame. The other end of the traction rope is equipped with a reciprocating controller for controlling the operation of the traction rope.

7. The concrete covering device according to claim 6, characterized in that, A length adjustment device is connected between the traction rope and the membrane tube assembly.

8. The concrete covering device according to claim 6, characterized in that, The device frame includes a first rod and a second rod disposed at one end of the first rod, wherein the length direction of the first rod is perpendicular to the length direction of the second rod; The traction rope includes a first rope segment disposed on the first rod, a second rope segment disposed on the second rod, and a third rope segment extending from the second rod and connected to the membrane cylinder assembly; the first rope segment and the second rope segment, and the second rope segment and the third rope segment are provided with a sliding transition.

9. The concrete covering device according to claim 8, characterized in that, A hand-operated rope is provided on the traction rope.

10. The concrete covering device according to claim 8 or 9, characterized in that, A counterweight is provided at the other end of the first rod.

11. A leveling device, characterized in that, It is provided with a concrete covering device as described in any one of claims 1-10 above.

12. The leveling equipment according to claim 11, characterized in that, The leveling equipment is equipped with an anti-pitch mechanism, and the mounting part is installed on the leveling equipment based on the position of the instantaneous center.

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