Concrete mixing device

Abstract

The utility model belongs to the technical field of concrete mixing, and particularly relates to a concrete mixing device which comprises a U-shaped frame, a stirring barrel is fixedly mounted at the top of the U-shaped frame, a first rotating block is rotatably mounted at the bottom of an inner cavity of the stirring barrel, a stirring rod is mounted in the inner cavity of the stirring barrel and located on the first rotating block in an inserted mode, and a sealing cover is arranged at the top of the stirring barrel. A motor is fixedly installed at the top of the sealing cover, an output shaft of the motor penetrates through the top of the sealing cover and is fixedly provided with a second rotating block, one end of the second rotating block extends into the stirring rod, two sliding grooves are symmetrically formed in the U-shaped frame, fixing rods are slidably installed in the sliding grooves, and universal wheels are fixedly installed at the positions, close to the four corners, of the bottom of the U-shaped frame. When the whole device is used and moved, the whole device does not need to be lifted and carried by personnel, labor is saved, the position, not prone to cleaning, on the stirring rod can be cleaned, and cleaning is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete mixing, and in particular relates to a concrete mixing device. Background Art

[0002] Concrete is one of the most important civil engineering materials in contemporary times. It is an artificial stone made of cementitious materials, granular aggregates (also called aggregates), water, and admixtures and additives added when necessary in a certain proportion, which are uniformly stirred, compacted, and hardened.

[0003] For example, a Chinese patent with publication number CN220280036U discloses a concrete mixing device, including a mounting base, a mounting leg fixedly mounted on the top of the mounting base, a mixing drum fixedly mounted on the top of the mounting leg, a discharge pipe fixedly mounted on the lower end of the left wall of the mixing drum, a solenoid valve is arranged on the top of the discharge pipe, a diesel engine is fixedly mounted on the right side of the top of the mounting base, and a hydraulic pump is arranged on the left wall of the diesel engine. By arranging an automatic stirring and anti-solidification mechanism, the stirring blades on the automatic stirring and anti-solidification mechanism can evenly stir the concrete in the mixing drum, and the side scrapers and the bottom scrapers can stir and scrape the concrete on the inner wall of the mixing drum to prevent the concrete on the inner wall of the mixing drum from solidifying on the inner wall of the mixing drum and causing the capacity of the mixing drum to decrease, thereby improving the stirring efficiency of the entire concrete stirring device and also avoiding the solidified concrete from damaging the stirring blades.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: when it needs to be moved to another location, it is inconvenient to move, and it needs to be carried by personnel, which is laborious. Moreover, after the device is used, concrete will remain on its mounting rod, bottom scraper, side scraper, transmission shaft and mixing blades. Moreover, the mounting rod, bottom scraper, side scraper, transmission shaft and mixing blades are all located in the mixing drum, which makes it inconvenient to clean some locations. In view of this, we propose a concrete mixing device. Utility Model Content

[0006] The purpose of the utility model is to provide a concrete mixing device to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a concrete mixing device, comprising:

[0008] A U-shaped frame, a stirring barrel is fixedly installed on the top of the U-shaped frame, a rotating block 1 is rotatably installed on the bottom of the inner cavity of the stirring barrel, a stirring rod is plugged and installed in the inner cavity of the stirring barrel and on the rotating block 1, a sealing cover is provided on the top of the stirring barrel, a motor is fixedly installed on the top of the sealing cover, the output shaft of the motor passes through the top of the sealing cover and is fixedly installed with a rotating block 2, and one end of the rotating block 2 extends into the stirring rod, two slide grooves are symmetrically provided in the U-shaped frame, a fixed rod is slidably installed in the slide groove, and universal wheels are fixedly installed at the bottom of the U-shaped frame and near the four corners;

[0009] A fixing assembly, which is located in the mixing barrel and is used to fix the sealing cover to the mixing barrel;

[0010] A driving assembly is located in the U-shaped frame and is used to drive the four fixing rods to move.

[0011] In this technical solution, under the action of four universal wheels and two handles, the staff can pull one of the handles by hand to make one of the handles drive the entire device to move. When it moves to the designated location, the driving assembly drives the four fixed rods to move downward in the corresponding slide grooves until the rubber pads at the bottom of the fixed rods are in close contact with the ground. At this time, the universal wheels will not rotate, making the overall device more stable.

[0012] Then, the staff can insert the bottom of the stirring rod on the rotating block 1 first. At this time, the stirring rod will be located in the inner cavity of the mixing barrel, and the stirring rod will contact the inner wall of the mixing barrel. Then, the staff will place the sealing cover on the top of the mixing barrel, and fix the sealing cover to the mixing barrel through the plurality of fixing components. Then, the staff will put the concrete raw materials into the mixing barrel through the feeding port on the sealing cover. At this time, the rotating block 2 will be inserted into the stirring rod. Then, the staff will start the motor so that the output shaft of the motor drives the rotating block 2 to rotate. Then, the rotating block 2 will drive the stirring rod, and the stirring rod will drive the rotating block 1 to rotate. When the stirring rod rotates, the concrete raw materials can be stirred, and the mixing raw materials on the mixing barrel can be scraped off.

[0013] After the mixing and discharging is completed, the sealing cover is fixed by means of the set fixing components. Then, the staff lifts the sealing cover by hand to pull the rotating block 2 out of the mixing rod. At this time, the mixing barrel will be opened. Then, the staff can pull the mixing rod out of the rotating block 1, so that the mixing rod is taken out of the mixing barrel for cleaning, and the staff can clean the inner wall of the mixing barrel with clean water.

[0014] In the above technical solution, further, the fixing assembly includes:

[0015] A plurality of mounting grooves are provided, and a plurality of the mounting grooves are all provided on the top of the mixing barrel. A plurality of fixing blocks are fixedly installed on the bottom of the sealing cover, and a plurality of the fixing blocks extend into the corresponding mounting grooves. A hand-tightening bolt is threadedly installed in the fixing block, and one end of the hand-tightening bolt passes through one side of the mounting groove and extends to the outside, and one end of the hand-tightening bolt is threadedly connected to the mixing barrel.

[0016] In this technical solution, the staff places the sealing cover on the top of the mixing barrel, and then inserts several fixing blocks at the bottom of the sealing cover into the corresponding installation grooves. Subsequently, several hand bolts are turned. Under the action of the thread, the hand bolts are rotated on the mixing barrel and moved toward the fixing blocks until one end of the hand bolt enters the fixing block, thereby fixing the fixing block in the installation groove, so that the sealing cover is fixed to the mixing barrel.

[0017] In the above technical solution, further, the driving component includes:

[0018] Two power chambers, the two power chambers are symmetrically opened in the U-shaped frame, one of the power chambers is located above two of the slide grooves, and the other power chamber is located above the other two slide grooves. A worm is rotatably installed in the power chamber, and two worm wheels are rotatably installed in the power chamber and on one side of the worm, and the worm wheel is meshed with the worm. A threaded rod is rotatably installed in the slide groove, and the lower end of the threaded rod extends into the fixed rod, and the fixed rod is threadedly connected to the threaded rod. The worm wheel is located directly above the threaded rod, and the bottom end of the worm wheel passes through the bottom of the power chamber, extends into the slide groove and is coaxially connected to the threaded rod, and one end of the worm passes through one side of the power chamber and extends to the outside.

[0019] In this technical solution, the staff manually rotates the rockers on the two worm gears and drives the two worm gears to rotate respectively. Then, under the action of meshing, the worm gears will drive the two worm wheels to rotate, and then the two worm wheels will drive the corresponding threaded rods to rotate. Under the action of the threads, the threaded rods will drive the fixed rod to move downward in the slide groove until the rubber pad at the bottom of the fixed rod is in close contact with the ground. At this time, the universal wheel will not rotate, making the overall device more stably fixed.

[0020] In the above technical solution, further, the lower end of the worm wheel is rotatably connected to the slide groove.

[0021] In this technical solution, it is ensured that the lower end of the worm wheel can rotate in the slide groove.

[0022] In the above technical solution, further, the stirring rod contacts the inner wall of the stirring barrel, one end of the rotating block 2 and one end of the rotating block 1 are both rectangular structures, and the rotating block 2 and the rotating block 1 are both plugged into and matched with the stirring rod, and the output shaft of the motor is rotatably connected to the sealing cover.

[0023] In this technical solution, it is ensured that the stirring rod can scrape the stirring materials on the inner wall of the stirring barrel; it is ensured that the rotating block 2 and the rotating block 1 can drive the stirring rod to rotate after being inserted into the stirring rod; and it is ensured that the motor can operate normally.

[0024] In the above technical solution, further, the size of the fixing block is equal to the size of the installation slot, and the fixing block is plug-fitted into the installation slot.

[0025] In the technical solution, it is ensured that the fixing block can be inserted into the installation groove; it is ensured that the fixing block will not shake after being inserted into the installation groove.

[0026] The beneficial effects of the utility model are:

[0027] 1. The concrete mixing device ensures that the staff can pull one of the handles by hand to drive the whole device to move through the cooperation between the handles, universal wheels, fixed rods, slide grooves, power chambers, rubber pads and drive components. When moving to a designated location, the friction between the fixed rod and the ground can be increased under the action of the rubber pad, so that the whole device can stop moving stably, and there is no need for personnel to lift and carry it, which is more labor-saving.

[0028] 2. The concrete mixing device ensures that the sealing cover can be removed from the mixing barrel through the cooperation of the mixing barrel, the sealing cover, the rotating block 1, the rotating block 2, the mixing rod and the fixed assembly, so that the mixing rod can be taken out of the mixing barrel for cleaning, so that the staff can clean the position on the mixing rod that is difficult to clean, and the cleaning is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the internal structure of the U-shaped frame in the utility model;

[0031] Figure 3 This is one of the schematic diagrams of the internal structure of the mixing barrel in the utility model;

[0032] Figure 4 This is the second schematic diagram of the internal structure of the mixing barrel in the utility model;

[0033] Figure 5 It is a schematic diagram of the cross-sectional structure of the stirring rod in the utility model;

[0034] Figure 6 It is a schematic diagram of the internal structure of the sealing cover in the utility model.

[0035] The symbols in the figure are:

[0036] 1. U-shaped frame; 2. Mixing barrel; 3. Universal wheel; 4. Handle; 5. Fixed rod; 6. Rubber pad; 7. Motor; 8. Sealing cover; 9. Thumb bolt; 10. Power chamber; 11. Worm gear; 12. Worm; 13. Threaded rod; 14. Slide; 15. Fixed block; 16. Mixing rod; 17. Mounting slot; 18. Rotating block 1; 19. Rotating block 2. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0038] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0040] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0041] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0042] Embodiment 1:

[0043] See also Figure 1 As shown in FIG. 6 , this embodiment provides a concrete mixing device, comprising:

[0044] A U-shaped frame 1, a mixing barrel 2 is fixedly installed on the top of the U-shaped frame 1, a rotating block 18 is rotatably installed on the bottom of the inner cavity of the mixing barrel 2, a stirring rod 16 is inserted and installed in the inner cavity of the mixing barrel 2 and on the rotating block 18, a sealing cover 8 is provided on the top of the mixing barrel 2, a motor 7 is fixedly installed on the top of the sealing cover 8, the output shaft of the motor 7 passes through the top of the sealing cover 8 and is fixedly installed with a rotating block 2 19, and one end of the rotating block 2 19 extends into the stirring rod 16, two slide grooves 14 are symmetrically provided in the U-shaped frame 1, a fixed rod 5 is slidably installed in the slide groove 14, and universal wheels 3 are fixedly installed at the bottom of the U-shaped frame 1 and near the four corners;

[0045] A fixing assembly, which is located in the mixing barrel 2 and is used to fix the sealing cover 8 to the mixing barrel 2;

[0046] A driving assembly is located in the U-shaped frame 1 and is used to drive the four fixing rods 5 to move.

[0047] Among them, under the action of the four universal wheels 3 and the two handles 4, the staff can pull one of the handles 4 by hand, so that one of the handles 4 drives the entire device to move. When it moves to the designated location, the driving assembly drives the four fixed rods 5 to move downward in the corresponding slide grooves 14 until the rubber pads 6 at the bottom of the fixed rods 5 are in close contact with the ground. At this time, the universal wheels 3 will not rotate, making the overall device more stable.

[0048] Then, the staff can insert the bottom of the stirring rod 16 on the rotating block 18 first. At this time, the stirring rod 16 will be located in the inner cavity of the mixing barrel 2, and the stirring rod 16 will contact the inner wall of the mixing barrel 2. Then, the staff will place the sealing cover 8 on the top of the mixing barrel 2, and fix the sealing cover 8 to the mixing barrel 2 through the set fixing components. Then, the staff will put the concrete raw material into the mixing barrel 2 through the feeding port on the sealing cover 8. At this time, the rotating block 2 19 will be inserted into the stirring rod 16. Then, the staff will start the motor 7 so that the output shaft of the motor 7 drives the rotating block 2 19 to rotate. Then, the rotating block 2 19 will drive the stirring rod 16, and the stirring rod 16 will drive the rotating block 18 to rotate. When the stirring rod 16 rotates, the concrete raw material can be stirred, and the mixing raw material on the mixing barrel 2 can be scraped off.

[0049] After the mixing and discharging is completed, the sealing cover 8 is fixed by the set several fixing components. Then, the staff lifts the sealing cover 8 by hand to make the rotating block 2 19 be pulled out from the stirring rod 16. At this time, the mixing barrel 2 will be opened. Then, the staff can pull the stirring rod 16 out of the rotating block 18, so that the stirring rod 16 is taken out of the mixing barrel 2 for cleaning, and the staff can clean the inner wall of the mixing barrel 2 with clean water.

[0050] Embodiment 2:

[0051] This embodiment provides a concrete mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing component includes:

[0052] A plurality of mounting grooves 17 are provided, and the plurality of mounting grooves 17 are all provided at the top of the mixing barrel 2. A plurality of fixing blocks 15 are fixedly installed at the bottom of the sealing cover 8. The plurality of fixing blocks 15 extend into the corresponding mounting grooves 17. A hand-tightening bolt 9 is installed in the inner thread of the fixing block 15. One end of the hand-tightening bolt 9 passes through one side of the mounting groove 17 and extends to the outside. One end of the hand-tightening bolt 9 is threadedly connected to the mixing barrel 2.

[0053] Among them, the staff places the sealing cover 8 on the top of the mixing barrel 2, and then inserts several fixing blocks 15 at the bottom of the sealing cover 8 into the corresponding installation grooves 17, and then rotates several hand bolts 9. Under the action of the thread, the hand bolts 9 are rotated on the mixing barrel 2 and moved toward the fixing blocks 15 until one end of the hand bolts 9 enters the fixing blocks 15, so that the fixing blocks 15 can be fixed in the installation grooves 17, so that the sealing cover 8 is fixed to the mixing barrel 2.

[0054] Embodiment 3:

[0055] This embodiment provides a concrete mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0056] Two power chambers 10 are symmetrically opened in the U-shaped frame 1, one of the power chambers 10 is located above two of the slide grooves 14, and the other power chamber 10 is located above the other two slide grooves 14. A worm 12 is rotatably installed in the power chamber 10, and two worm wheels 11 are rotatably installed in the power chamber 10 and located on one side of the worm 12, and the worm wheel 11 is meshed with the worm 12. A threaded rod 13 is rotatably installed in the slide groove 14, and the lower end of the threaded rod 13 extends into the fixed rod 5, and the fixed rod 5 is threadedly connected to the threaded rod 13. The worm wheel 11 is located directly above the threaded rod 13, and the bottom end of the worm wheel 11 passes through the bottom of the power chamber 10, extends into the slide groove 14 and is coaxially connected with the threaded rod 13. One end of the worm 12 passes through one side of the power chamber 10 and extends to the outside.

[0057] Among them, the staff manually rotates the rockers on the two worm gears 12 and drives the two worm gears 12 to rotate respectively. Then, under the action of meshing, the worm gears 12 will drive the two worm wheels 11 to rotate, and then the two worm wheels 11 will drive the corresponding threaded rods 13 to rotate. Under the action of the thread, the threaded rods 13 will drive the fixed rod 5 to move downward in the slide groove 14 until the rubber pad 6 at the bottom of the fixed rod 5 is in close contact with the ground. At this time, the universal wheel 3 will not rotate, making the overall device more stably fixed.

[0058] Embodiment 4:

[0059] This embodiment provides a concrete mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the lower end of the worm gear 11 is rotatably connected to the slide chute 14 .

[0060] Here, it is ensured that the lower end of the worm wheel 11 can rotate in the slide groove 14 .

[0061] Embodiment 5:

[0062] The present embodiment provides a concrete mixing device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the stirring rod 16 contacts the inner wall of the mixing barrel 2, one end of the rotating block 19 and one end of the rotating block 18 are both rectangular structures, and the rotating block 19 and the rotating block 18 are both plugged into and matched with the stirring rod 16, and the output shaft of the motor 7 is rotatably connected to the sealing cover 8.

[0063] Among them, it is ensured that the stirring rod 16 can scrape the stirring raw materials on the inner wall of the stirring barrel 2; it is ensured that the rotating block 2 19 and the rotating block 1 18 can drive the stirring rod 16 to rotate after being inserted into the stirring rod 16; and it is ensured that the motor 7 can operate normally.

[0064] Embodiment 6:

[0065] This embodiment provides a concrete mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the size of the fixing block 15 is equal to the size of the installation groove 17, and the fixing block 15 is plugged into and matched with the installation groove 17.

[0066] Here, it is ensured that the fixing block 15 can be inserted into the installation groove 17 ; and it is ensured that the fixing block 15 does not shake after being inserted into the installation groove 17 .

[0067] Working principle: Under the action of four universal wheels 3 and two handles 4, the staff can pull one of the handles 4 by hand to make one of the handles 4 drive the whole device to move. When moving to the designated location, the staff turns the rockers on the two worms 12 by hand and makes them drive the two worms 12 to rotate respectively. Then, under the action of meshing, the worm 12 will drive the two worm wheels 11 to rotate. Then, the two worm wheels 11 will drive the corresponding threaded rods 13 to rotate. Under the action of the thread, the threaded rod 13 will drive the fixed rod 5 to move downward in the slide groove 14 until the rubber pad 6 at the bottom of the fixed rod 5 is in close contact with the ground. At this time, the universal wheel 3 will not rotate, making the whole device more stable.

[0068] Then, the staff can insert the bottom of the stirring rod 16 on the rotating block 18 first. At this time, the stirring rod 16 will be located in the inner cavity of the stirring barrel 2, and the stirring rod 16 will contact the inner wall of the stirring barrel 2. Then, the staff will place the sealing cover 8 on the top of the stirring barrel 2, and then insert the several fixing blocks 15 at the bottom of the sealing cover 8 into the corresponding installation grooves 17. At this time, the rotating block 2 19 will be inserted into the stirring rod 16. Then, the staff will rotate the several hand-tightening bolts 9. Under the action of the thread, the hand-tightening bolts 9 are rotated on the stirring barrel 2 and moved toward the fixing block 15 until one end of the hand-tightening bolt 9 enters the fixing block 15, so that the fixing block 15 can be fixed in the installation groove 17.

[0069] Then, the staff puts the concrete raw material into the mixing barrel 2 through the feeding port on the sealing cover 8, and then the staff starts the motor 7 so that the output shaft of the motor 7 drives the rotating block 2 19 to rotate, and then the rotating block 2 19 drives the stirring rod 16, and the stirring rod 16 drives the rotating block 1 18 to rotate. When the stirring rod 16 rotates, the concrete raw material can be stirred, and the mixing raw material on the mixing barrel 2 can be scraped off;

[0070] After the mixing and discharging is completed, the staff member manually turns several hand-tightening bolts 9, and under the action of the thread, the hand-tightening bolts 9 are rotated and displaced on the mixing barrel 2. At the same time, the hand-tightening bolts 9 are rotated and displaced in the fixing block 15 until one end of the hand-tightening bolt 9 is displaced from the fixing block 15. At this time, the fixing block 15 will be released. Subsequently, the staff member manually lifts the sealing cover 8 to make several fixing blocks 15 at the bottom of the sealing cover 8 displaced from the corresponding mounting grooves 17. Subsequently, the rotating block 2 19 is pulled out from the stirring rod 16. At this time, the mixing barrel 2 will be opened. Subsequently, the staff member can pull the stirring rod 16 out of the rotating block 1 18, so that the stirring rod 16 is taken out of the mixing barrel 2 for cleaning, and the staff member can clean the inner wall of the mixing barrel 2 with clean water.

[0071] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A concrete mixing device, characterized in that: include: A U-shaped frame (1), a stirring barrel (2) is fixedly mounted on the top of the U-shaped frame (1), a rotating block (18) is rotatably mounted on the bottom of the inner cavity of the stirring barrel (2), a stirring rod (16) is inserted and mounted in the inner cavity of the stirring barrel (2) and located on the rotating block (18), a sealing cover (8) is arranged on the top of the stirring barrel (2), a motor (7) is fixedly mounted on the top of the sealing cover (8), an output shaft of the motor (7) passes through the top of the sealing cover (8) and a rotating block (19) is fixedly mounted thereon, and one end of the rotating block (19) extends into the stirring rod (16), two slide grooves (14) are symmetrically arranged in the U-shaped frame (1), a fixed rod (5) is slidably mounted in the slide groove (14), and universal wheels (3) are fixedly mounted at the bottom of the U-shaped frame (1) and near the four corners; A fixing assembly, the fixing assembly being located in the mixing barrel (2) and being used to fix the sealing cover (8) to the mixing barrel (2); A driving assembly is located in the U-shaped frame (1) and is used to drive the four fixing rods (5) to move.

2. A concrete mixing device according to claim 1, characterized in that: The fixing assembly comprises: A plurality of mounting grooves (17), wherein the plurality of mounting grooves (17) are all provided at the top of the mixing barrel (2); a plurality of fixing blocks (15) are fixedly installed at the bottom of the sealing cover (8); the plurality of fixing blocks (15) extend into corresponding mounting grooves (17); a hand-tightening bolt (9) is installed with an inner thread of the fixing block (15); one end of the hand-tightening bolt (9) passes through one side of the mounting groove (17) and extends to the outside; and one end of the hand-tightening bolt (9) is threadedly connected to the mixing barrel (2).

3. A concrete mixing device according to claim 1, characterized in that: The drive assembly comprises: Two power chambers (10), the two power chambers (10) are symmetrically arranged in the U-shaped frame (1), one of the power chambers (10) is located above two of the slide grooves (14), and the other power chamber (10) is located above the other two slide grooves (14), a worm (12) is rotatably installed in the power chamber (10), two worm wheels (11) are rotatably installed in the power chamber (10) and located on one side of the worm wheel (12), and the worm wheel (11) is meshed with the worm wheel (12) A threaded rod (13) is rotatably installed in the slide groove (14), the lower end of the threaded rod (13) extends into the fixed rod (5), and the fixed rod (5) is threadedly connected to the threaded rod (13), the worm wheel (11) is located directly above the threaded rod (13), the bottom end of the worm wheel (11) passes through the bottom of the power chamber (10) and extends into the slide groove (14) and is coaxially connected to the threaded rod (13), and one end of the worm (12) passes through one side of the power chamber (10) and extends to the outside.

4. A concrete mixing device according to claim 3, characterized in that: The lower end of the worm wheel (11) is rotationally connected to the slide groove (14).

5. A concrete mixing device according to claim 1, characterized in that: The stirring rod (16) contacts the inner wall of the stirring barrel (2); one end of the second rotating block (19) and one end of the first rotating block (18) are both rectangular structures; the second rotating block (19) and the first rotating block (18) are both plug-fitted with the stirring rod (16); and the output shaft of the motor (7) is rotatably connected to the sealing cover (8).

6. A concrete mixing device according to claim 2, characterized in that: The size of the fixing block (15) is equal to the size of the installation groove (17), and the fixing block (15) is plug-fitted with the installation groove (17).

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