Concrete leveling machine

Abstract

The utility model relates to the technical field of road surface leveling equipment, and discloses a concrete leveling machine which comprises a machine body, a fixed seat, a positioning frame, a lifting mechanism and a leveling plate, a spray head is fixedly installed on the side, close to the leveling plate, of the fixed seat, and a device groove is formed in the top of the positioning frame; by rotating the rotating blocks at the outer ends of the ball screws, the ball screws can drive the sliding sleeves on the two sides of the device groove in the top of the positioning frame, the distance between the two sets of sliding sleeves can be adjusted under the elasticity of the corresponding compressed springs, and therefore the inserting plates can movably penetrate through the device groove to be separated from or inserted into the corresponding inserting grooves to be positioned. Compared with existing leveling plate positioning, the leveling plate positioning device has the advantages that bolts do not need to be screwed at the two ends for disassembly and assembly, and the leveling plate is more convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the technical field of road leveling equipment, specifically a concrete leveling machine. Background Technology

[0002] A road slab leveling machine is a type of road construction machinery that uses a motor-driven vibrating roller shaft. Through the structural features of the vibrating roller shaft, it effectively levels any excess concrete. It is widely used for paving and leveling concrete surfaces in projects such as highways, municipal roads, airport runways, water conservancy projects, and slopes.

[0003] For example, Chinese Patent Publication No. CN221460877U discloses a concrete pavement construction leveling machine. However, when using the above-mentioned concrete leveling machine, the leveling plate needs to be disassembled and reassembled separately before and after use. The fixing bolts on both sides of the plate and the positioning frame need to be removed before the leveling plate can be disassembled and reassembled. This operation is extremely inconvenient. In addition, when the concrete pavement is leveled by the concrete leveling machine, if the concrete pavement is relatively dry or the leveling plate needs to be cleaned, water needs to be sprayed manually. This operation is also extremely inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete screed machine that can quickly assemble and disassemble the screed and can be automatically controlled mechanically when the concrete pavement is drying or the screed is being cleaned, making it easy to operate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete leveling machine, comprising a machine body, a fixed base, a positioning frame, a lifting mechanism, and a leveling plate. A nozzle is fixedly installed on the side of the fixed base near the leveling plate. A device groove is provided on the top of the positioning frame, and a ball screw is rotatably installed in the device groove. Sliding sleeves are threadedly installed on the outer sides of the ball screw near both ends. An insert plate is integrally formed on the end of the sliding sleeve away from the ball screw. The insert plate is used to position the leveling plate. A liquid storage tank, a liquid guide pipe, and a liquid pump are fixedly installed on both sides of the top of the machine body.

[0006] Preferably, a guide groove is provided through one side of the fixed base, the positioning frame is slidably installed in the guide groove, and the lifting mechanism includes a lifting cylinder fixedly installed on the front of the fixed base, and a return spring is fixedly installed between the fixed end and the telescopic end of the lifting cylinder.

[0007] Preferably, a rotating sleeve is rotatably mounted on the center of the top surface of the flat plate, and the telescopic end of the lifting mechanism is connected to the rotating sleeve by a thread.

[0008] Preferably, the two sets of sliding sleeves slide on both sides of the top device groove of the positioning frame, and compression springs are fixedly installed at both ends of the inner wall of the top device groove of the positioning frame, with the end of the compression spring away from the inner wall of the device groove being fixedly connected to the sliding sleeve.

[0009] Preferably, the flat plate has insert plates at both ends, the insert plates extend to the outside of the positioning frame, and the insert plates extend movably through the top device groove of the positioning frame to the corresponding slot.

[0010] Preferably, the liquid storage tank is connected to the liquid guide pipe via a liquid pump, and the liquid guide pipe is connected to the nozzle.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention uses a rotating block at the outer end of the ball screw to drive the ball screw to the sliding sleeves on both sides of the top device slot of the positioning frame. Under the elasticity of the corresponding compression springs, the two sets of sliding sleeves can adjust their distance from each other. This allows the insert plate to move through the device slot and separate from or be inserted into the corresponding slot for positioning. This enables quick positioning or release of the slot at the end of the whole plate. Compared with existing whole plate positioning, it eliminates the need to loosen the bolts at both ends for disassembly and assembly, making the disassembly and assembly of the whole plate more convenient.

[0013] In this invention, the liquid storage tank is connected to the liquid delivery pipe via a liquid pump, allowing the water in the storage tank to be pumped into the nozzle. This enables the concrete to be evenly wetted when it is dry during concrete leveling or when the concrete needs to be watered. Alternatively, it can be used to rinse the inside of the concrete surface during cleaning. This allows for automatic mechanical control and convenient operation when drying concrete pavement or cleaning concrete surfaces. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the positioning frame structure in this utility model;

[0016] Figure 3 This is a schematic diagram of the liquid storage tank structure in this utility model;

[0017] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Body; 2. Fixed base; 3. Positioning frame; 4. Lifting mechanism; 5. Flat plate; 6. Nozzle; 7. Ball screw; 8. Sliding sleeve; 9. Compression spring; 10. Liquid storage tank; 31. Guide groove; 41. Lifting cylinder; 42. Return spring; 51. Rotating sleeve; 81. Insert plate; 82. Slot; 111. Liquid guide tube; 112. Liquid pump. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0023] Please see Figure 1-4This utility model provides a technical solution: a concrete leveling machine, including a machine body 1, a fixed base 2, a positioning frame 3, a lifting mechanism 4, and a leveling plate 5. A nozzle 6 is fixedly installed on the side of the fixed base 2 near the leveling plate 5. A device groove is opened on the top of the positioning frame 3, and a ball screw 7 is rotatably installed in the device groove. Sliding sleeves 8 are respectively installed on the outside of the ball screw 7 near both ends by threads.

[0024] The sliding sleeve 8 has an integrally formed insert plate 81 at one end away from the ball screw 7. The insert plate 81 is used to position the flat plate 5. The top two sides of the machine body 1 are respectively fixedly installed with a liquid storage tank 10, a liquid guide pipe 111, and a liquid pump 112.

[0025] The extension end of the lifting cylinder 41 can drive the entire plate 5 and the external positioning frame 3 to slide in the guide groove 31, so that the plate 5 can move on the concrete pouring road surface through the rollers at the bottom of the machine body 1. This allows the plate 5 to adjust the distance between itself and the bottom of the machine body 1, thereby adapting to different slopes of the road surface and leveling it. During the movement of the machine body 1, the plate 5 can level the uneven concrete surface by dragging it.

[0026] When disassembling and assembling the plate 5, by rotating the outer end of the ball screw 7, the ball screw 7 can drive the sliding sleeves 8 on both sides of the top device slot of the positioning frame 3. Under the elasticity of the corresponding compression springs 9, the two sets of sliding sleeves 8 can adjust their spacing. This allows the insert plate 81 to move through the device slot and separate or insert into the corresponding slot 82 for positioning. This allows for quick positioning or depositioning of the slot 82 at the end of the plate 5. Compared with the existing positioning of the plate 5, it is not necessary to loosen the bolts at both ends for disassembly and assembly, making the disassembly and assembly of the plate 5 more convenient.

[0027] The liquid storage tank 10 is connected to the liquid guide pipe 111 via the liquid pump 112, which allows water to be pumped from the liquid storage tank 10 into the nozzle 6. This enables the concrete to be evenly wetted when it is dry and needs watering during concrete leveling, or to be rinsed on the inside of the concrete leveling plate 5 during cleaning. This allows for automatic mechanical control and convenient operation when drying concrete pavement or cleaning the concrete leveling plate 5.

[0028] In some embodiments, such as Figure 2 As shown, a guide groove 31 is provided through one side of the fixed base 2, and the positioning frame 3 is slidably installed in the guide groove 31. The lifting mechanism 4 includes a lifting cylinder 41 fixedly installed on the front of the fixed base 2. A return spring 42 is fixedly installed between the fixed end and the telescopic end of the lifting cylinder 41. When the telescopic end of the lifting cylinder 41 is extended or retracted, the telescopic end and the fixed end are quickly reset by the return spring 42.

[0029] In some embodiments, such as Figure 2 and Figure 4 As shown, a rotating sleeve 51 is rotatably installed in the middle of the top surface of the plate 5. The telescopic end of the lifting mechanism 4 is connected to the rotating sleeve 51 by a thread. Two sets of sliding sleeves 8 slide on both sides of the top device groove of the positioning frame 3. Compression springs 9 are fixedly installed at both ends of the inner wall of the top device groove of the positioning frame 3. The end of the compression spring 9 away from the inner wall of the device groove is fixedly connected to the sliding sleeve 8. Insert plates 81 are opened at both ends of the plate 5. The insert plates 81 extend to the outside of the positioning frame 3. The insert plates 81 move through the top device groove of the positioning frame 3 and extend into the corresponding slot 82.

[0030] By rotating the outer end block of the ball screw 7, the ball screw 7 can drive the sliding sleeves 8 on both sides of the top device slot of the positioning frame 3. Under the elasticity of the corresponding compression springs 9, the two sets of sliding sleeves 8 can adjust their distance from each other. This allows the insert plate 81 to move through the device slot and separate or insert into the corresponding slot 82 for positioning. This allows for quick positioning or release of the slot 82 at the end of the flat plate 5.

[0031] In some embodiments, such as Figure 2-3 As shown, the liquid storage tank 10 is connected to the liquid guide pipe 111 via the liquid pump 112, and the liquid guide pipe 111 is connected to the nozzle 6. The liquid storage tank 10 is connected to the liquid guide pipe 111 via the liquid pump 112.

[0032] This allows the water in the storage tank 10 to be pumped into the nozzle 6. When the concrete is being leveled and needs to be watered due to dryness, the water can be evenly moistened in conjunction with the leveling plate 5. Alternatively, when cleaning the leveling plate 5, the inside of the leveling plate 5 can be rinsed.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete leveling machine, comprising a machine body, a fixed base, a positioning frame, a lifting mechanism, and a leveling plate, characterized in that: The nozzle is installed on the side of the fixed base near the flat plate; The top of the positioning frame is provided with a device slot, in which a ball screw is rotatably installed. Sliding sleeves are threadedly installed on the outside of the ball screw near both ends. An insert plate is integrally formed on the end of the sliding sleeve away from the ball screw. The insert plate is used to position the entire plate. A liquid storage tank, a liquid guide pipe, and a liquid pump are fixedly installed on both sides of the top of the machine body. The liquid storage tank is connected to the liquid guide pipe through the liquid pump, and the liquid guide pipe is connected to the nozzle.

2. The concrete leveling machine according to claim 1, characterized in that: A guide groove is provided through one side of the fixed base, and the positioning frame is slidably installed in the guide groove.

3. The concrete leveling machine according to claim 1, characterized in that: The lifting mechanism includes a lifting cylinder fixedly installed on the front of the fixed base, and a return spring is fixedly installed between the fixed end and the telescopic end of the lifting cylinder.

4. The concrete leveling machine according to claim 3, characterized in that: A rotating sleeve is rotatably mounted in the middle of the top surface of the flat plate, and the telescopic end of the lifting mechanism is connected to the rotating sleeve by a thread.

5. The concrete leveling machine according to claim 1, characterized in that: The two sets of sliding sleeves slide on both sides of the device groove at the top of the positioning frame. Compression springs are fixedly installed at both ends of the inner wall of the device groove at the top of the positioning frame. The end of the compression spring away from the inner wall of the device groove is fixedly connected to the sliding sleeve.

6. The concrete leveling machine according to claim 5, characterized in that: The flat plate has insert plates at both ends, which extend to the outside of the positioning frame. The insert plates movably pass through the device groove at the top of the positioning frame and extend into the corresponding slot.

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