A concrete mixer

Abstract

The utility model relates to the technical field of construction machinery, specifically a concrete mixer, comprising a mixing component, a transport component is arranged below the mixing component, a lifting component is arranged at the lower end of the transport component, the mixing component comprises a symmetrical U-shaped vertical plate, a screw is arranged in the middle of the symmetrical vertical rod, a first motor is arranged at the top of the screw, a cross plate is connected to the outer surface of the screw, a second motor is arranged on the upper surface of the cross plate near the left end, a pillar is arranged near the lower end of the right side of the cross plate, a connecting pipe is arranged near the lower end of the pillar, a top cover is arranged on the lower surface of the cross plate, a stirring shaft is connected to the lower end of the second motor, the transport component comprises an iron bucket, a push handle is arranged at one end of the iron bucket, a fixing block is arranged at the other end of the iron bucket, a plurality of pulleys are arranged at the lower end of the iron bucket, the lifting component comprises a limit block, a trapezoidal plate is connected to one side of the limit block, and a slide groove of the same size is opened on the upper surface of the trapezoidal plate. The mixer is a split structure, which is convenient for directly mixing the next batch by replacing the iron bucket, and more flexible in shipping by setting the pulley.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a concrete mixer. Background Art

[0002] A concrete mixer is a machine that mixes cement, sand and gravel aggregates and water to make concrete mixture. It is mainly composed of a mixing drum, a feeding and unloading mechanism, a water supply system, a prime mover, a transmission mechanism, a frame and a supporting device. According to its working nature, it can be divided into two types: intermittent and continuous.

[0003] The utility model with the announcement number CN220922851U discloses a concrete mixer, comprising a mixing tank and a second driving motor, wherein the second driving motor is fixedly arranged at the bottom of the mixing tank through a bracket, and the output shaft of the second driving motor is fixedly connected to a rotating shaft through a coupling, and one end of the rotating shaft penetrates and extends into the interior of the mixing tank;

[0004] The above technical solution is to arrange a threaded sleeve on the surface of the rotating shaft and to arrange detachable scrapers on both sides of the threaded sleeve, so that when the second motor drives the rotating shaft to make the stirring rod stir the mixture, the rotating shaft can also drive the scraper to scrape the inner wall of the threaded sleeve up and down. By scraping the inner wall above the liquid level of the mixture in the mixing tank, it can prevent the material from scaling, which makes subsequent cleaning difficult. Secondly, the detachable driving scraper is also convenient for subsequent replacement. However, this mixer cannot quickly mix the next batch after the mixing is completed. The open mixer cannot avoid splashing during operation. The mixed concrete is too heavy to be transported. The concrete at the bottom of the mixer cannot be fully mixed. The integrated mixer is not convenient to clean. Utility Model Content

[0005] The utility model aims to provide a concrete mixer to solve the problem that a concrete mixer with authorization announcement number CN220922851U proposed in the above background technology cannot quickly mix the next batch after mixing is completed, an open mixer cannot avoid splashing during operation, the mixed concrete is too heavy to be transported, the concrete at the bottom of the mixer cannot be fully mixed, and the integrated mixer is inconvenient to clean.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A concrete mixer comprises a mixing assembly for mixing soil, a transport assembly for loading and shipping is provided below the mixing assembly, a lifting assembly for docking is provided at the lower end of the transport assembly, the mixing assembly comprises a U-shaped vertical plate and a first motor installed on the top of the U-shaped vertical plate, a screw is provided in the middle of the U-shaped vertical plate, an output shaft of the first motor passes through the U-shaped vertical plate and is connected to the screw, a cross plate is sleeved on the screw, a second motor is provided on the upper surface of the cross plate near the left end, a pillar is provided near the lower end of the right side of the cross plate, a connecting pipe is provided on the left side surface of the pillar near the lower end, a top cover is provided on the lower surface of the cross plate, a stirring shaft is connected to the lower end of the output shaft of the second motor, the transport assembly comprises an iron barrel, a push handle is provided at one end of the iron barrel, a fixing block is provided on the outer wall of the iron barrel at a position corresponding to the connecting pipe, a plurality of pulleys are provided at the lower end of the iron barrel, the lifting assembly comprises a limit block and a trapezoidal plate connected to one side of the limit block, and slide grooves are symmetrically provided on the upper surface of the trapezoidal plate.

[0008] Preferably, the connecting pipe is welded and fixed to the pillar, the pillar passes through the transverse plate, and the pillar is slidingly connected to the transverse plate, a thread groove is opened on the right side of the transverse plate, the transverse plate is threadedly connected to the screw through the thread groove, and the output shaft of the second motor passes through the transverse plate and the top cover and is coaxially connected to the stirring shaft at the lower end.

[0009] In the utility model, the operation of the stirring shaft is realized by coaxially connecting the output shaft of the second motor with the stirring shaft, and the top cover is combined with the iron bucket when the mixer is running, thereby reducing the splashing of concrete.

[0010] Preferably, a plurality of stirring columns are provided on the outer wall of the stirring shaft, the stirring columns are distributed at equal intervals, the stirring columns located at the bottom are close to the bottom of the iron barrel, and the stirring columns are welded and fixed to the stirring shaft.

[0011] In the utility model, symmetrical stirring columns are arranged, and when the stirring shaft is running, the stirring columns are driven to rotate to achieve the stirring and mixing of concrete. By also symmetrical stirring columns are arranged at the bottom of the stirring shaft, more sufficient mixing of the concrete at the bottom of the iron barrel is achieved, and uneven mixing caused by the precipitation of concrete at the bottom is reduced.

[0012] Preferably, the iron barrel is fixed to the push handle by welding, the lower end of the iron barrel is fixed to the upper end of the pulley by welding, and the iron barrel is fixed to the fixing block by welding.

[0013] In the utility model, the iron barrel is conveniently dragged by providing a push handle, and the iron barrel is flexibly moved by providing a pulley, and the weight of the concrete is reduced when it is directly lifted, thereby saving manpower.

[0014] Preferably, the opening size of the connecting pipe is adapted to the size of the fixing block, a threaded hole is provided on the surface of the fixing block, a circular hole is provided at a position corresponding to the threaded hole, a bolt is provided in the circular hole, the bolt passes through the circular hole, extends to the threaded hole, and is threadedly connected to the threaded hole.

[0015] In the utility model, the fixing block is plugged into the connecting pipe and the bolt is threadedly connected to the threaded hole to increase the stability of the iron barrel and the support combination, thereby avoiding displacement caused by vibration generated during the operation of the mixer, which affects the stability of the concrete mixing production.

[0016] Preferably, the lower end of the U-shaped vertical plate is welded and fixed to the upper surface of the limiting block, the limiting block and the trapezoidal plate are an integrally formed structure, and a slope is provided on the side of the trapezoidal plate away from the limiting block.

[0017] In the utility model, the position of the iron barrel is limited by setting a limit block, and a slope is provided on one side of the trapezoidal plate, so that the iron barrel can be pushed up and down conveniently.

[0018] Preferably, the width of the chute is matched with the width of the pulley, and the lower end of the iron barrel is fixed to the upper end of the pulley by welding.

[0019] In the utility model, by setting the width dimensions of the slide groove and the pulley to the same size, it is convenient for the pulley to directly dock with the slide groove and follow the slide groove to the lower end of the limit block, so as to accurately dock and fix the fixing block on the iron barrel with the connecting pipe on the pillar.

[0020] Preferably, the upper end of the screw is coaxially connected to the output shaft of the first motor, a circular hole is opened on the lower surface of the U-shaped vertical plate, the width of the screw is matched with the width of the circular hole, and the lower end of the screw is rotatably connected to the circular hole.

[0021] In the utility model, the first motor is started by connecting an external power supply, so that the output shaft of the first motor drives the screw to rotate, and then drives the cross plate to move up and down, so as to control the height of the top cover. When the screw rotates to the left, the cross plate moves downward, and when the screw moves to the right, the cross plate moves upward. The up and down movement of the cross plate realizes the up and down movement of the second motor with the stirring shaft, which helps to separate the iron barrel from the stirring column and facilitates the installation or removal of the iron barrel.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The utility model can directly mix the next batch by replacing the iron bucket, which is also easy to clean. A pulley is arranged at the bottom of the iron bucket to make the loading of concrete more flexible and easy. The first motor is started by connecting an external power supply, so that the output shaft of the first motor drives the screw to rotate, and then drives the cross plate to move up and down, so as to control the height of the top cover. When the mixer is running, the top cover is combined with the iron bucket to reduce the splashing of concrete. A symmetrical stirring column is also arranged at the bottom of the stirring shaft to achieve more sufficient mixing of the concrete.

[0024] 2. The utility model. The push handle is provided to facilitate dragging of the iron barrel, and the width of the chute and the pulley are set to the same size, so that the pulley can be directly docked with the chute and follow the chute to the lower end of the limit block, so as to accurately dock and fix the fixed block on the iron barrel with the connecting pipe on the support, thereby fixing the position of the iron barrel. The position of the iron barrel is limited by the limit block, and the up and down pushing and pulling of the iron barrel is facilitated by opening a slope on one side of the trapezoidal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the mixer of the utility model;

[0026] Figure 2 This is a schematic diagram of the connection between the top cover and the iron barrel of the utility model;

[0027] Figure 3 It is a schematic diagram of the structure of the mixing component and the lifting component of the utility model;

[0028] Figure 4 This is a schematic diagram of the connection between the fixing block and the connecting pipe of the utility model;

[0029] Figure 5 This is a schematic diagram of the lifting component of the utility model;

[0030] Figure 6 It is a schematic diagram of the U-shaped vertical plate structure of the utility model.

[0031] The meaning of each number in the figure is:

[0032] 1. Mixing assembly; 10. Horizontal plate; 11. U-shaped vertical plate; 110. First motor; 111. Screw; 12. Connecting pipe; 120. Round hole; 121. Bolt; 122. Support column; 13. Second motor; 130. Stirring shaft; 131. Stirring column; 14. Top cover;

[0033] 2. Transport assembly; 20. Iron bucket; 21. Push handle; 22. Pulley; 23. Fixing block; 230. Threaded hole;

[0034] 3. Lifting assembly; 30. Limiting block; 31. Slide groove; 32. Trapezoidal plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-Figure 6 , this embodiment provides a technical solution:

[0037] A concrete mixer comprises a mixing assembly 1 for mixing soil, a transport assembly 2 for shipping is provided below the mixing assembly 1, a lifting assembly 3 for docking is provided at the lower end of the transport assembly 2, the mixing assembly 1 comprises a U-shaped vertical plate 11 and a first motor 110 installed on the top of the U-shaped vertical plate 11, a screw 111 is provided in the middle of the U-shaped vertical plate 11, an output shaft of the first motor 110 passes through the U-shaped vertical plate 11 and is connected to the screw 111, a horizontal plate 10 is sleeved on the screw 111, a second motor 13 is provided on the upper surface of the horizontal plate 10 near the left end, and the horizontal plate 10 A pillar 122 is provided near the lower end on the right side, a connecting pipe 12 is provided on the left side surface of the pillar 122 near the lower end, a top cover 14 is provided on the lower surface of the horizontal plate 10, and a stirring shaft 130 is connected to the lower end of the output shaft of the second motor 13. The transport component 2 includes an iron barrel 20, a push handle 21 is provided at one end of the iron barrel 20, a fixing block 23 is provided on the outer wall of the iron barrel 20 corresponding to the connecting pipe 12, and a plurality of pulleys 22 are provided at the lower end of the iron barrel 20. The lifting component 3 includes a limit block 30 and a trapezoidal plate 32 connected to one side of the limit block 30, and a slide groove 31 is symmetrically provided on the upper surface of the trapezoidal plate 32.

[0038] In this embodiment, the connecting pipe 12 is welded and fixed to the pillar 122, the pillar 122 passes through the horizontal plate 10, and the pillar 122 is slidably connected to the horizontal plate 10. A threaded groove is opened on the right side of the horizontal plate 10, and the horizontal plate 10 is threadedly connected to the screw 111 through the threaded groove. The output shaft of the second motor 13 passes through the horizontal plate 10 and the top cover 14 and is coaxially connected to the stirring shaft 130 at the lower end.

[0039] In the utility model, the operation of the stirring shaft 130 is realized by coaxially connecting the output shaft of the second motor 13 with the stirring shaft 130, and the top cover 14 and the iron bucket 20 are combined when the mixer is running, thereby reducing the splashing of concrete.

[0040] A plurality of stirring columns 131 are disposed on the outer wall of the stirring shaft 130 . The stirring columns 131 are distributed at equal intervals. The stirring columns 131 at the bottom are close to the bottom of the iron barrel 20 . The stirring columns 131 are welded and fixed to the stirring shaft 130 .

[0041] In the utility model, by also setting symmetrical stirring columns 131 at the bottom of the stirring shaft 130, more thorough mixing of the concrete at the bottom of the iron bucket 20 is achieved, and uneven mixing caused by the precipitation of concrete at the bottom is reduced. By setting symmetrical stirring columns 131, the stirring columns 131 are driven to rotate when the stirring shaft 130 is running, thereby achieving stirring and mixing of the concrete.

[0042] Specifically, the iron barrel 20 is fixed to the push handle 21 by welding, the lower end of the iron barrel 20 is fixed to the upper end of the pulley 22 by welding, and the iron barrel 20 is fixed to the fixing block 23 by welding.

[0043] In the utility model, the pulley 22 is provided to realize the flexible movement of the iron bucket 20, and at the same time the weight of directly pulling the concrete is reduced, thereby saving manpower, and the push handle 21 is provided to facilitate the dragging of the iron bucket 20.

[0044] Furthermore, the opening size of the connecting tube 12 is adapted to the size of the fixing block 23 , a threaded hole 230 is provided on the surface of the fixing block 23 , a circular hole 120 is provided at a position corresponding to the threaded hole 230 , a bolt 121 is provided in the circular hole 120 , the bolt 121 passes through the circular hole 120 and extends to the threaded hole 230 , and is threadedly connected to the threaded hole 230 .

[0045] In the utility model, the connection pipe 12 is plugged into the fixing block 23, and the bolt 121 is threadedly connected with the threaded hole 230 to increase the stability of the combination of the support 122 and the iron barrel 20, thereby avoiding displacement caused by vibration generated during the operation of the mixer, which affects the stability of the concrete mixing production.

[0046] The lower end of the U-shaped vertical plate 11 is welded and fixed to the upper surface of the limiting block 30 . The limiting block 30 and the trapezoidal plate 32 are an integrally formed structure. A slope is provided on the side of the trapezoidal plate 32 away from the limiting block 30 .

[0047] In the utility model, a slope is provided on one side of the trapezoidal plate 32 to facilitate the upward and downward pushing and pulling of the iron barrel 20 , and a limit block 30 is provided to limit the position of the iron barrel 20 .

[0048] It should also be added that the width of the chute 31 is adapted to the width of the pulley 22 , and the lower end of the iron barrel 20 is welded and fixed to the upper end of the pulley 22 .

[0049] In the utility model, by setting the slide groove 31 and the pulley 22 with the same width, it is convenient for the pulley 22 to directly dock with the slide groove 31, and follow the slide groove 31 to the lower end of the limit block 30, so as to accurately and conveniently dock and fix the fixing block 23 on the iron barrel 20 and the connecting pipe 12 on the pillar 122.

[0050] Finally, it should be said that the upper end of the screw rod 111 is coaxially connected to the output shaft of the first motor 110, a circular hole is opened on the lower surface of the U-shaped vertical plate 11, the width of the screw rod 111 is adapted to the width of the circular hole, and the lower end of the screw rod 111 is rotatably connected to the circular hole.

[0051] In the utility model, the first motor 110 is started by connecting an external power supply, so that the output shaft of the first motor 110 drives the screw 111 to rotate, and then drives the cross plate 10 to move up and down, so as to control the height of the top cover 14. When the screw 111 rotates to the left, the cross plate 10 moves downward, and when the screw 111 moves to the right, the cross plate 10 moves upward. The up and down movement of the cross plate 10 realizes the up and down movement of the second motor 13 with the stirring shaft 130, which helps to separate the iron barrel 20 from the stirring column 131 and facilitates the installation or removal of the iron barrel 20.

[0052] When a concrete mixer of the present embodiment is in use, first, the lower end of the U-shaped vertical plate 11 is welded and fixed to the upper surface of the limit block 30, and then one side of the connecting pipe 12 is welded and fixed to the side below the pillar 122, the upper end of the pillar 122 passes through the horizontal plate 10, the right end of the horizontal plate 10 is threadedly connected to the screw 111 through the hole, the second motor 13 passes through the horizontal plate 10 and is fixedly connected to the top center of the top cover 14, the output shaft of the second motor 13 is coaxially connected to the stirring shaft 130, symmetrical stirring columns 131 are welded and fixed on both sides of the stirring shaft 130, a slide groove 31 is provided on the upper surface of the trapezoidal plate 32, a push handle 21 is welded and fixed to one side of the iron bucket 20, and a fixing block 23 is welded to the other side of the iron bucket 20, and finally, a plurality of pulleys 22 are welded and fixed to the lower end of the iron bucket 20.

[0053] When it is necessary to mix concrete, the iron bucket 20 filled with concrete is first moved by the push handle 21 and the pulley 22, and then the pulley 22 is aligned with the slide groove 31 on the trapezoidal plate 32 and slides up the slope to the limit block 30, so that the fixing block 23 is docked with the connecting pipe 12, and the bolt 121 passes through the round hole 120 and is threadedly connected with the threaded hole 230, and the first motor 110 is started by connecting to an external power supply, so that the output shaft of the first motor 110 drives the screw 111 to rotate to the left, thereby driving the cross plate 10 to move downward until the top cover 14 is tightly fitted with the iron bucket 20, and finally the second motor 13 is connected through an external power supply, and the stirring shaft 130 is driven to rotate, and the stirring column 131 further starts to stir.

[0054] When cleaning or the next batch of mixing is required, it is only necessary to unscrew the bolt 121 connecting the fixing block 23 and the connecting pipe 12, start the first motor 110, and rotate the screw 111 in the opposite direction to drive the cross plate 10 to move upward. The stirring shaft 130 is separated and taken out from the iron barrel 20, and then the iron barrel 20 is pulled out by the push handle 21 to replace a new set of transport components 2.

Claims

1. A concrete mixer, comprising a mixing assembly (1) for mixing soil, a transport assembly (2) for shipping being provided below the mixing assembly (1), a lifting assembly (3) for docking being provided at the lower end of the transport assembly (2), characterized in that: The mixing assembly (1) comprises a U-shaped vertical plate (11) and a first motor (110) mounted on the top of the U-shaped vertical plate (11); a screw rod (111) is provided in the middle of the U-shaped vertical plate (11); an output shaft of the first motor (110) passes through the U-shaped vertical plate (11) and is connected to the screw rod (111); a horizontal plate (10) is sleeved on the screw rod (111); a second motor (13) is provided on the upper surface of the horizontal plate (10) near the left end; a pillar (122) is provided on the lower end of the right side of the horizontal plate (10); a connecting pipe (12) is provided on the left side surface of the pillar (122) near the lower end; A top cover (14) is provided on the lower surface of the transverse plate (10); a stirring shaft (130) is connected to the lower end of the output shaft of the second motor (13); the transport component (2) comprises an iron barrel (20); a push handle (21) is provided at one end of the iron barrel (20); a fixing block (23) is provided on the outer wall of the iron barrel (20) at a position corresponding to the connecting pipe (12); a plurality of pulleys (22) are provided at the lower end of the iron barrel (20); and the lifting component (3) comprises a limit block (30) and a trapezoidal plate (32) connected to one side of the limit block (30); and a slide groove (31) is symmetrically provided on the upper surface of the trapezoidal plate (32).

2. A concrete mixer according to claim 1, characterized in that: The connecting pipe (12) is fixedly welded to the support (122), the support (122) passes through the transverse plate (10), and the support (122) is slidably connected to the transverse plate (10), a thread groove is provided on the right side of the transverse plate (10), the transverse plate (10) is threadedly connected to the screw rod (111) via the thread groove, and the output shaft of the second motor (13) passes through the transverse plate (10) and the top cover (14) and is coaxially connected to the stirring shaft (130) at the lower end.

3. A concrete mixer according to claim 2, characterized in that: A plurality of stirring columns (131) are provided on the outer wall of the stirring shaft (130), and the stirring columns (131) are distributed at equal intervals. The stirring columns (131) located at the bottom are close to the bottom of the iron barrel (20), and the stirring columns (131) are fixed to the stirring shaft (130) by welding.

4. A concrete mixer according to claim 3, characterized in that: The iron barrel (20) and the push handle (21) are fixed by welding, and the iron barrel (20) and the fixing block (23) are fixed by welding.

5. A concrete mixer according to claim 4, characterized in that: The opening size of the connecting pipe (12) matches the size of the fixing block (23); a threaded hole (230) is provided on the surface of the fixing block (23); a circular hole (120) is provided at a position corresponding to the threaded hole (230); a bolt (121) is provided in the circular hole (120); the bolt (121) passes through the circular hole (120), extends to the threaded hole (230), and is threadedly connected to the threaded hole (230).

6. A concrete mixer according to claim 5, characterized in that: The lower end of the U-shaped vertical plate (11) is welded and fixed to the upper surface of the limit block (30); the limit block (30) and the trapezoidal plate (32) are an integrally formed structure; and a slope is provided on a side of the trapezoidal plate (32) away from the limit block (30).

7. A concrete mixer according to claim 1, characterized in that: The width of the slide groove (31) is matched to the width of the pulley (22), and the lower end of the iron barrel (20) is fixed to the upper end of the pulley (22) by welding.

8. A concrete mixer according to claim 1, characterized in that: The upper end of the screw rod (111) is coaxially connected to the output shaft of the first motor (110); a circular hole is provided on the lower surface of the U-shaped vertical plate (11); the width of the screw rod (111) matches the width of the circular hole; and the lower end of the screw rod (111) is rotatably connected to the circular hole.

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