Concrete screw push conveyor

Abstract

This utility model discloses a concrete spiral conveying device, including a drive assembly. The drive assembly includes a conveying pipe, with a fixing plate fixed to the upper end of the conveying pipe. A feed inlet is provided through the upper end of the fixing plate. Conveying rollers are rotatably mounted on the inner walls of both ends of the conveying pipe. A connecting hole is provided at the center of the left end shaft of the conveying roller. A flange is fixed to the left edge of the conveying pipe. At least two connecting assemblies are connected in series on the left end of the drive assembly. Each connecting assembly includes a connecting pipe, with a fixing plate fixed to the upper end of the connecting pipe. Flanges are fixed to the edges of both ends of the connecting pipe, and the flanges are compatible with the flanges. Conveying rollers are rotatably mounted on the inner walls of both ends of the connecting pipe. A connecting column is fixed to the right end of the conveying roller, and the connecting column is compatible with the connecting hole. A connecting hole is provided at the left end of the conveying roller. This utility model has the advantages of being easy to manufacture, transport, and install, and easy to clean.

Description

Technical Field

[0001] This utility model relates to the field of conveying device technology, specifically a concrete spiral conveying device. Background Technology

[0002] In engineering fields such as construction and road construction, concrete is a key building material, and its efficient and stable transportation directly affects the progress and quality of the project. With its advantages such as compact structure, small footprint, and ability to achieve continuous transportation, the spiral conveyor has become one of the important equipment in the concrete transportation process and is widely used in scenarios such as unloading of concrete mixing plants and material transfer at construction sites.

[0003] The core load-bearing component of traditional concrete spiral conveyor systems is the long trough, which is often a monolithic structure. During actual operation, when the trough is fully loaded with concrete, its overall rigidity is insufficient to withstand the pressure generated by the material, making it prone to bending and deformation. The gap between the spiral blades and the inner wall of the trough becomes uneven, with some areas having excessively small gaps or even direct scraping, exacerbating wear on the spiral blades and the trough. Traditional monolithic long troughs are also large in size, especially those designed for long-distance conveying, making production difficult. During transportation, road transport limitations on component dimensions necessitate specialized transport vehicles for monolithic long troughs, resulting in low transport efficiency. Concrete has a tendency to solidify easily, requiring timely cleaning of the trough's interior after conveying. However, the narrow, elongated interior of traditional monolithic troughs creates many cleaning dead zones, making cleaning difficult. Incomplete cleaning allows residual concrete to solidify, further impacting subsequent conveying efficiency and equipment performance. Utility Model Content

[0004] The purpose of this invention is to provide a concrete spiral conveying device, which has the advantages of being easy to manufacture, transport and install, and easy to clean. It solves the problems in the prior art, such as the bending and deformation of the long trough body, which causes uneven gap between the spiral blades and the shell, as well as the complex installation and difficult cleaning of the integral trough body.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A concrete spiral conveying device includes a drive assembly, which includes a conveying pipe. A fixing plate is fixedly connected to the upper end of the conveying pipe, and a feed inlet is opened through the upper end of the fixing plate. Conveying rollers are rotatably mounted on the inner walls of both ends of the conveying pipe. A connecting hole is opened at the center of the left end shaft of the conveying roller. A flange is fixedly connected to the left edge of the conveying pipe. At least two connecting assemblies are connected in series on the left end of the drive assembly. Each connecting assembly includes a connecting pipe, a fixing plate is fixedly connected to the upper end of the connecting pipe, and flanges are fixedly connected to the left and right edges of the connecting pipe. The flanges are compatible with the flanges. The connecting assembly also includes a rotatable mounting... The two conveying rollers are located on the inner walls of the left and right ends of the connecting pipe. A connecting column is fixed to the right end of the two conveying rollers, and the connecting column is adapted to the connecting hole one. A connecting hole two is opened at the left end of the two conveying rollers. Adjacent connecting pipes are connected to each other through flange two. The connecting hole two is adapted to the adjacent connecting column. A support assembly is installed on the outer wall of the drive assembly and the connecting assembly. The support assembly includes a support seat set on the outer wall of the conveying pipe. The conveying pipe is installed on the upper inner wall of the support seat. The support assembly also includes a support frame. The connecting assembly is installed on the upper inner wall of the support frame. The lower end of the support seat is flush with the lower end of the support frame. A conveying cover is installed on the left end of the leftmost connecting pipe.

[0006] Preferably, the drive assembly also includes a servo motor installed at the right end of the conveying pipe, and a reducer is installed at the output end of the servo motor. The output end of the servo motor is connected to the shaft of the conveying roller through the reducer.

[0007] It is worth noting that the output of the servo motor can drive the first conveyor roller to rotate, thereby driving the second conveyor roller to rotate synchronously. The reducer can reduce the speed and increase the torque of the servo motor, improve the output power of the servo motor, and ensure the stability of the servo motor drive even after connecting multiple connecting components.

[0008] Preferably, the upper end of the fixing plate is provided with several symmetrical slots, and the upper inner wall of the support base is provided with several symmetrical slots, with each slot corresponding to one of the slots.

[0009] It is worth noting that: by matching slot one with slot three, the fixing plate one can be detachably installed on the upper inner wall of the support base by means of bolts or other connecting components, which facilitates the installation and disassembly of the drive component, thereby facilitating the transportation and cleaning of the conveying pipe.

[0010] Preferably, a connecting ring 1 is fixed to the left end of the conveying pipe and surrounds the pipe, and a connecting groove is opened at the right end of the connecting pipe and surrounds the pipe, into which the connecting ring 1 is inserted.

[0011] It is worth noting that inserting the connecting ring into the connecting groove can improve the reliability of the connection between the delivery pipe and the adjacent connecting pipe, and improve the sealing of the connection, thus preventing leakage of concrete slurry and other substances that could pollute the environment.

[0012] Preferably, the upper end of the fixing plate 2 is provided with several symmetrical slots 2, and the upper inner wall of the support frame is provided with several symmetrical slots 4, with each slot 4 corresponding to a slot 2.

[0013] It is worth noting that: by matching slot 2 with slot 4 one-to-one, the fixing plate 2 can be detachably installed on the upper inner wall of the support frame by means of bolts or other connecting components, which facilitates the installation and disassembly of the connecting components and facilitates the transportation and cleaning of the connecting pipe.

[0014] Preferably, a second connecting ring is fixed to the left end of the connecting pipe, and the second connecting ring is inserted into the connecting groove at the right end of the adjacent connecting pipe.

[0015] It is worth noting that by inserting the second connecting ring into the adjacent connecting groove, the reliability of the connection between the connecting pipes can be ensured, and the sealing of the connection between the connecting pipes can be improved, thus preventing leakage of concrete slurry and other substances that could pollute the environment.

[0016] Preferably, the left and right ends of the conveying roller's two helical blades are provided with grooves, and the connecting assembly also includes a fixing rod. The outer wall of the fixing rod is adapted to the inner wall of the groove, and a scraper is fixedly connected to the outer wall of the fixing rod.

[0017] It is worth noting that by matching the trough with the fixed rod, after the conveying is completed and the connecting pipe is disassembled, the fixed rod can be inserted into the trough, so that the scraper can adhere to the inner wall of the connecting pipe. Then, the conveying roller can be rotated to drive the scraper to remove the impurities remaining on the inner wall of the connecting pipe.

[0018] Preferably, a slot is provided at the center of the left end of both the support base and the support frame, and a block is fixedly connected to the right end of the support frame. The block is compatible with the slot and can be inserted into the slot of the adjacent support base or support frame.

[0019] It is worth noting that the cooperation between the slot and the block can improve the reliability of the connection between the support frame and the support base, and ensure the reliability of the connection between the support frames, thereby improving the stability of the support for the drive component and the connecting component.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model connects the conveying pipe and the connecting pipe through flange one and flange two. The flange two at both ends of the connecting pipe is connected to the flange two of the adjacent connecting pipe, so that the connecting pipes are connected end to end. The connecting assembly is connected in series at the left end of the drive assembly. Then, the connecting post of the connecting pipe is inserted into the inner wall of the connecting hole two of the adjacent connecting pipe, so that the conveying rollers two in the connecting assembly are connected. Then, the connecting post near the conveying roller one in the drive assembly is inserted into the connecting hole one at the left end of the conveying roller one, so that the conveying roller one can drive all the conveying rollers two at the same time. The feed port can guide the concrete slurry into the conveying pipe. The rotation of the conveying roller one and conveying roller two can transport the concrete slurry to the inner wall of the conveying cover. The conveying cover can discharge the concrete slurry. The modular splicing conveying channel is easy to disassemble and can be used for individual conveying or cleaning, improving convenience. The fixing plate one can improve the bending resistance of the conveying pipe, and the fixing plate two can improve the bending resistance of the connecting pipe, so that each module of the pipeline has good bending resistance. The support assembly can support and fix the conveying pipe and the connecting pipe, which can improve the overall deformation resistance of the pipeline. Attached Figure Description

[0021] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 3 This is a three-dimensional structural disassembled diagram of the drive component of this utility model; Figure 4 This is a three-dimensional structural disassembled diagram of the connecting component of this utility model; Figure 5 This is a three-dimensional structural disassembly diagram of the support component of this utility model.

[0022] Reference numerals in the attached drawings: 101, conveying pipe; 102, fixing plate one; 103, slot one; 104, feed inlet; 105, servo motor; 106, reducer; 107, connecting ring one; 108, conveying roller one; 109, connecting hole one; 110, flange one; 201, connecting pipe; 202, fixing plate two; 203, slot two; 204, flange two; 205, connecting ring two; 206, conveying roller two; 207, connecting hole two; 208, trough; 209, fixing rod; 210, scraper; 211, connecting groove; 212, connecting column; 301, support base; 302, slot three; 303, slot; 304, support frame; 305, locking block; 306, slot four; 4, conveying cover. Detailed Implementation

[0023] 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.

[0024] To address the problems in existing technologies, such as the bending deformation of long tanks leading to uneven clearance between the helical blades and the housing, as well as the complex installation and difficult cleaning of integral tanks, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-5 ; A concrete spiral conveying device includes a drive assembly, which includes a conveying pipe 101. A fixing plate 102 is fixedly connected to the upper end of the conveying pipe 101. An inlet 104 is provided through the upper end of the fixing plate 102. Conveying rollers 108 are rotatably mounted on the inner walls of the left and right ends of the conveying pipe 101. A connecting hole 109 is provided at the center of the left end shaft of the conveying roller 108. A flange 110 is fixedly connected to the left edge of the conveying pipe 101. At least two connecting assemblies are connected in series on the left end of the drive assembly. Each connecting assembly includes a connecting pipe 201. A fixing plate 202 is fixedly connected to the upper end of the connecting pipe 201. Flanges 204 are fixedly connected to the left and right edges of the connecting pipe 201. Flanges 204 are adapted to flanges 110. The connecting assembly also includes a rotatably mounted on the connecting pipe 201. 01 The conveying rollers 206 are located on the inner walls of the left and right ends. A connecting column 212 is fixed to the right end of the conveying roller 206. The connecting column 212 is adapted to the connecting hole 109. A connecting hole 207 is opened at the left end of the conveying roller 206. Adjacent connecting pipes 201 are connected to each other through flange 204. The connecting hole 207 is adapted to the adjacent connecting column 212. A support assembly is installed on the outer wall of the drive assembly and the connecting assembly. The support assembly includes a support seat 301 set on the outer wall of the conveying pipe 101. The conveying pipe 101 is installed on the upper inner wall of the support seat 301. The support assembly also includes a support frame 304. The connecting assembly is installed on the upper inner wall of the support frame 304. The lower end of the support seat 301 is flush with the lower end of the support frame 304. A conveying cover 4 is installed on the left end of the leftmost connecting pipe 201.

[0025] The conveying pipe 101 and the connecting pipe 201 can be connected by flange 110 and flange 204. The flanges 204 at both ends of the connecting pipe 201 are connected to the flanges 204 of the adjacent connecting pipe 201, so that the connecting pipes 201 are connected end to end, and the connecting assembly is connected in series at the left end of the drive assembly. Then, the connecting post 212 of the connecting pipe 201 is inserted into the inner wall of the connecting hole 207 of the adjacent connecting pipe 201, so that the conveying rollers 206 in the connecting assembly can be connected. Then, the connecting post 212 near the conveying roller 108 in the drive assembly is inserted into the connecting hole 109 at the left end of the conveying roller 108, so that the conveying roller 108 can be connected. Simultaneously driving all the conveying rollers 206, the feed inlet 104 can guide the concrete slurry into the conveying pipe 101. The rotation of the first conveying roller 108 and the second conveying roller 206 can transport the concrete slurry to the inner wall of the conveying cover 4. The conveying cover 4 can discharge the concrete slurry. The modular splicing conveyor is easy to disassemble and can be used for individual conveying or cleaning, improving convenience. The first fixing plate 102 can improve the bending resistance of the conveying pipe 101, and the second fixing plate 202 can improve the bending resistance of the connecting pipe 201, so that each module of the pipeline has good bending resistance. The support component can support and fix the conveying pipe 101 and the connecting pipe 201, which can improve the overall deformation resistance of the pipeline.

[0026] Please see Figure 3 The drive assembly also includes a servo motor 105 installed at the right end of the conveying pipe 101. A reducer 106 is installed at the output end of the servo motor 105. The output end of the servo motor 105 is connected to the shaft of the first conveying roller 108 through the reducer 106. The output end of the servo motor 105 can drive the first conveying roller 108 to rotate, thereby driving the second conveying roller 206 to rotate synchronously. The reducer 106 can reduce the speed and increase the torque of the servo motor 105, improve the output power of the servo motor 105, and ensure the stability of the drive even after connecting multiple connecting components.

[0027] The upper end of the fixing plate 102 has several symmetrical slots 103, and the upper inner wall of the support base 301 has several symmetrical slots 302, which correspond one-to-one with the slots 103. Through the correspondence between the slots 103 and 302, the fixing plate 102 can be detachably installed on the upper inner wall of the support base 301 using bolts or other connecting components, facilitating the installation and disassembly of the drive assembly, and thus facilitating the transportation and cleaning of the conveying pipe 101. A connecting ring 107 is fixed to the left end of the conveying pipe 101, and a connecting groove 211 is opened on the right end of the connecting pipe 201, into which the connecting ring 107 is inserted. Inserting the connecting ring 107 into the connecting groove 211 improves the reliability of the connection between the conveying pipe 101 and the adjacent connecting pipe 201, and enhances the sealing of the connection, preventing leakage of concrete slurry and other contaminants from polluting the environment.

[0028] Please see Figure 4 A connecting ring 205 is fixed to the left end of the connecting pipe 201, and the connecting ring 205 is inserted into the connecting groove 211 on the right end of the adjacent connecting pipe 201. Inserting the connecting ring 205 into the adjacent connecting groove 211 ensures the reliability of the connection between the connecting pipes 201 and improves the sealing of the connection, preventing leakage of concrete slurry and other contaminants. Grooves 208 are provided at both ends of the spiral blades of the conveying roller 206, connecting the assembly... The component also includes a fixing rod 209, the outer wall of which is adapted to the inner wall of the trough 208, and a scraper 210 is fixedly connected to the outer wall of the fixing rod 209. By adapting the trough 208 to the fixing rod 209, after the conveying is completed and the connecting pipe 201 is disassembled, the fixing rod 209 can be inserted into the trough 208, so that the scraper 210 can fit against the inner wall of the connecting pipe 201. Then, the conveying roller 206 can be rotated to drive the scraper 210 to scrape away the impurities remaining on the inner wall of the connecting pipe 201.

[0029] Please see Figure 5 The upper end of the fixing plate 202 has several symmetrically oriented slots 203, and the upper inner wall of the support frame 304 has several symmetrically oriented slots 306, which correspond one-to-one with the slots 203. Through the correspondence between the slots 203 and 306, the fixing plate 202 can be detachably installed on the upper inner wall of the support frame 304 using bolts or other connecting components. This facilitates the installation and disassembly of the connecting components, and thus facilitates the transportation and cleaning of the connecting pipe 201. Support base 3 Both the support frame 301 and the support base 304 have a slot 303 at their left center. The support frame 304 has a block 305 fixed to its right end. The block 305 is compatible with the slot 303 and can be inserted into the slot 303 of the adjacent support base 301 or support frame 304. Through the cooperation of the slot 303 and the block 305, the reliability of the connection between the support frame 304 and the support base 301 can be improved, and the reliability of the connection between the support frames 304 can be ensured, thereby improving the stability of the support for the drive component and the connecting component.

[0030] Working principle: During the device assembly stage, the splicing and fixing of the support components are completed first: the locking block 305 at the right end of the support frame 304 is inserted into the locking groove 303 at the left end of the support base 301. If multiple connecting components need to be connected in series, the locking block 305 of the subsequent support frame 304 is inserted into the locking groove 303 of the previous support frame 304. Through the cooperation of the locking groove 303 and the locking block 305, the connection between the support base 301 and the support frame 304 is ensured to be reliable, providing a stable support foundation for the overall device. Place the conveying pipe 101 on the upper inner wall of the support base 301, so that the slot 103 on the fixing plate 102 corresponds one-to-one with the slot 302 on the support base 301. By passing bolts or other connecting components through the slot 103 and the slot 302, the fixing plate 102 is detachably fixed to the support base 301, so as to achieve a stable installation of the conveying pipe 101. At the same time, the fixing plate 102 can improve the bending resistance of the conveying pipe 101 and prevent the conveying pipe 101 from deforming.

[0031] Insert the connecting ring 107 at the left end of the conveying pipe 101 into the connecting groove 211 at the right end of the adjacent connecting pipe 201. At the same time, align the flange 110 at the left end of the conveying pipe 101 with the flange 204 at the right end of the connecting pipe 201 and fix them with bolts. A sealing gasket is clamped and fixed between the flanges to improve the sealing performance of the connection and ensure the reliability of the connection. Then, insert the connecting post 212 at the right end of the conveying roller 206 in the connecting pipe 201 into the connecting hole 109 at the left end of the conveying roller 108 to ensure that the conveying roller 108 can drive the conveying roller 206 to rotate synchronously. If the conveying distance needs to be extended, insert the connecting ring 205 at the left end of the subsequent connecting pipe 201 into the connecting groove 211 at the right end of the previous connecting pipe 201, so that the flanges 204 of the adjacent connecting pipes 201 are aligned and fixed. At the same time, insert the connecting post 212 of the next conveying roller 206 into the connecting hole 207 of the previous conveying roller 206 to realize the series connection of the connecting components. Then, place the connecting pipe 201 on the inner wall of the upper end of the support frame 304, so that the slot 203 of the fixing plate 202 corresponds one-to-one with the slot 306 of the support frame 304. Fix it with bolts. The fixing plate 202 can improve the bending resistance of the connecting pipe 201, and the support frame 304 can support and fix the connecting pipe 201 to avoid deformation of the entire pipeline. Install the conveying cover 4 at the left end of the leftmost connecting pipe 201 to guide the concrete slurry out. During the startup phase, the servo motor 105 is started. The output of the servo motor 105 drives the reducer 106 to run. The reducer 106 increases the output power of the servo motor 105 by reducing speed and increasing torque. Finally, the reducer 106 drives the first conveyor roller 108 in the conveying pipe 101 to rotate. Since the first conveyor roller 108 is connected to the connecting post 212 of the second conveyor roller 206 through the first connecting hole 109, and the adjacent second conveyor roller 206 is connected to the connecting post 212 through the second connecting hole 207, the first conveyor roller 108 will synchronously drive the second conveyor roller 206 in all the connecting components to rotate, forming a unified spiral pushing force. During the material conveying stage, concrete slurry is poured into the conveying pipe 101 through the feed inlet 104 at the upper end of the fixed plate 102. The rotating conveying roller 108 pushes the concrete slurry to the left into the connecting pipe 201 through the spiral blades. The concrete slurry entering the connecting pipe 201 is continuously conveyed to the left under the push of the spiral blades of the synchronously rotating conveying roller 206, and finally reaches the leftmost connecting pipe 201, and is discharged through the conveying cover 4, completing the concrete slurry conveying operation. During this process, the support base 301 and the support frame 304 together provide support for the conveying pipe 101 and the connecting pipe 201, improve the overall deformation resistance of the pipeline, and ensure stable conveying. During the shutdown and cleaning phase, after the conveying operation is completed, the servo motor 105 is turned off, and the fixing bolts between flange 110 and flange 204, and between adjacent flanges 204, are removed. The drive assembly and connecting assembly are then separated one by one for individual cleaning. For the connecting pipe 201, the fixing rod 209 is inserted into the grooves 208 at both ends of the spiral blades of the conveying roller 206. At this time, the scraper 210 on the fixing rod 209 will adhere to the inner wall of the connecting pipe 201. The conveying roller 206 is manually rotated, and the scraper 210 will rotate with the conveying roller 206 to scrape off the concrete slurry impurities remaining on the inner wall of the connecting pipe 201, preventing concrete from sticking to the inner wall and making it difficult to clean. The drive assembly can be removed by unscrewing the connecting bolts between the support base 301 and the fixing plate 102, and the conveying pipe 101 can be removed for individual cleaning. The entire cleaning process is more convenient and efficient due to the modular design.

[0032] 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 process, method, article, or apparatus.

[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, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A concrete spiral conveying device, comprising a drive assembly, characterized in that, The drive assembly includes a conveying pipe (101), a fixing plate (102) fixed to the upper end of the conveying pipe (101), a feed inlet (104) extending through the upper end of the fixing plate (102), conveying rollers (108) rotatably mounted on the inner walls of the left and right ends of the conveying pipe (101), a connecting hole (109) is provided at the center of the left end shaft of the conveying roller (108), a flange (110) is fixed to the left edge of the conveying pipe (101), and at least two connecting assemblies are connected in series on the left end of the drive assembly. The connecting assemblies include a connecting pipe (201), a fixing plate (202) fixed to the upper end of the connecting pipe (201), and flanges (204) fixed to the left and right edges of the connecting pipe (201). The flanges (204) are adapted to the flanges (110). The connecting assemblies also include conveying rollers rotatably mounted on the inner walls of the left and right ends of the connecting pipe (201). The second (206) conveyor roller two (206) has a connecting column (212) fixed to its right end. The connecting column (212) is adapted to the connecting hole one (109). The left end of the conveyor roller two (206) has a connecting hole two (207). Adjacent connecting pipes (201) are connected to each other through flange two (204). The connecting hole two (207) is adapted to the adjacent connecting column (212). The outer wall of the drive assembly and the connecting assembly is equipped with a support assembly. The support assembly includes a support seat (301) set on the outer wall of the conveyor pipe (101). The conveyor pipe (101) is installed on the upper inner wall of the support seat (301). The support assembly also includes a support frame (304). The connecting assembly is installed on the upper inner wall of the support frame (304). The lower end of the support seat (301) is flush with the lower end of the support frame (304). The left end of the leftmost connecting pipe (201) is equipped with a conveyor cover (4).

2. The concrete spiral conveying device according to claim 1, characterized in that, The drive assembly also includes a servo motor (105) installed at the right end of the conveying pipe (101), and a reducer (106) is installed at the output end of the servo motor (105). The output end of the servo motor (105) is connected to the shaft of the conveying roller (108) through the reducer (106).

3. The concrete spiral conveying device according to claim 1, characterized in that, The upper end of the fixing plate (102) is provided with several symmetrical slots (103), and the upper inner wall of the support base (301) is provided with several symmetrical slots (302), with slots (302) corresponding to slots (103) one by one.

4. The concrete spiral conveying device according to claim 1, characterized in that, The left end of the conveying pipe (101) is fixed with a connecting ring (107) that surrounds the pipe, and the right end of the connecting pipe (201) is provided with a connecting groove (211) that surrounds the pipe. The connecting ring (107) is inserted into the connecting groove (211).

5. The concrete spiral conveying device according to claim 1, characterized in that, The upper end of the fixed plate (202) is provided with several symmetrical slots (203), and the upper inner wall of the support frame (304) is provided with several symmetrical slots (306), with slots (306) corresponding to slots (203) one by one.

6. The concrete spiral conveying device according to claim 1, characterized in that, A second connecting ring (205) is fixed to the left end of the connecting pipe (201) and surrounds it. The second connecting ring (205) is inserted into the connecting groove (211) at the right end of the adjacent connecting pipe (201).

7. The concrete spiral conveying device according to claim 6, characterized in that, The conveyor roller (206) has a groove (208) through the left and right ends of the spiral blade. The connecting assembly also includes a fixing rod (209). The outer wall of the fixing rod (209) is adapted to the inner wall of the groove (208). A scraper (210) is fixed to the outer wall of the fixing rod (209).

8. The concrete spiral conveying device according to claim 7, characterized in that, The left end center of both the support base (301) and the support frame (304) is provided with a slot (303), and the right end of the support frame (304) is fixed with a block (305). The block (305) is adapted to the slot (303), and the block (305) can be inserted into the slot (303) of the adjacent support base (301) or support frame (304).

Images