Concrete mixing head and concrete mixing device

Abstract

The present application relates to the technical field of concrete mixing equipment, and in particular to a concrete mixing head and a concrete mixing device. The concrete mixing head comprises a main shaft and mixing blades. The main shaft comprises a plurality of sub-shafts, which are sequentially connected, and a connecting mechanism for connecting adjacent sub-shafts is provided between adjacent sub-shafts. Each sub-shaft is provided with a mixing blade, and a mounting mechanism for mounting the mixing blade is provided between the mixing blade and the sub-shaft. The mixing blades comprise a first blade, a second blade, a third blade, and a fourth blade, which are arranged around the sub-shaft. The present application facilitates the repair of the mixing head.

Description

Technical Field

[0001] The present application relates to the technical field of concrete mixing equipment, and in particular to a concrete mixing head and a concrete mixing device. Background Art

[0002] A concrete mixer is a machine that mixes cement, sand and gravel aggregates and water to make concrete mixture. The mixing head is the one that stirs the concrete in the concrete mixer.

[0003] In the related art, the stirring head includes a main shaft and stirring blades. There are several stirring blades, which are evenly distributed around the main shaft. There is a certain inclination angle between adjacent stirring blades, and the stirring blades are welded to the main shaft.

[0004] Regarding the above-mentioned related technologies, during the long-term operation of the mixing head, the concrete continues to generate resistance to the mixing blades, and the welding point between the mixing blades and the main shaft is continuously subjected to stress. During long-term use, the connection between the mixing blades and the main shaft is prone to breakage, which in turn causes damage to the mixing head. If the mixing head is to be repaired, a new mixing blade needs to be re-welded to the main shaft. The repair process is relatively cumbersome and requires the user to be proficient in welding technology, which places high demands on the repairer. Summary of the Invention

[0005] The purpose of the present application is to provide a concrete mixing head and a concrete mixing device that are convenient for repairing the mixing head.

[0006] In a first aspect, the present application provides a concrete mixing head and a concrete mixing device that adopt the following technical solution: the concrete mixing head includes a main shaft and a mixing blade, the main shaft includes a plurality of sub-shafts, the plurality of sub-shafts are connected in sequence, and a connecting mechanism for connecting adjacent sub-shafts is provided between adjacent sub-shafts;

[0007] The stirring blade is provided on each of the sub-shafts, and a mounting mechanism for mounting the stirring blade is provided between the stirring blade and the sub-shaft;

[0008] The stirring blade includes a first blade, a second blade, a third blade and a fourth blade, and the first blade, the second blade, the third blade and the fourth blade are arranged around the branch shaft.

[0009] By adopting the above technical solution, the mixing blade is detachably connected to the main shaft through the mounting mechanism. When the mixing blade breaks, the mounting mechanism can be opened to replace the mixing blade, thereby reducing the process of re-welding the mixing blade and thus reducing the difficulty of maintenance. The main shaft is divided into several sub-shafts. When a section of the main shaft is damaged, only the sub-shaft of the damaged section needs to be replaced, thereby saving materials.

[0010] Optionally, the mounting mechanism includes a first mounting plate, a second mounting plate, a third mounting plate and a fourth mounting plate;

[0011] The first mounting plate is fixedly connected to one end of the first blade close to the sub-shaft, the second mounting plate is fixedly connected to one end of the second blade close to the sub-shaft, the third mounting plate is fixedly connected to one end of the third blade close to the sub-shaft, and the fourth mounting plate is fixedly connected to one end of the fourth blade close to the sub-shaft;

[0012] A first slot is formed on one end of the first mounting plate and the third mounting plate close to the sub-shaft; a first plug post is fixedly connected to one end of the second mounting plate close to the sub-shaft; and a second plug post is fixedly connected to one end of the fourth mounting plate close to the sub-shaft.

[0013] The split shaft is provided with a plurality of mounting slots, each of which is provided with a mounting slot at the location of the first mounting plate, the second mounting plate, the third mounting plate, and the fourth mounting plate, and each of the first mounting plate, the second mounting plate, the third mounting plate, and the fourth mounting plate is inserted into the mounting slot;

[0014] A second slot and a third slot are formed on the first mounting plate. The second slot corresponds to the position of the first pin, and the first pin is inserted into the second slot. The third slot corresponds to the position of the second pin, and the second pin is inserted into the third slot.

[0015] A first slot is formed on a side of the third mounting plate close to the second mounting plate, and the second mounting plate is inserted into the first slot. A second slot is formed on a side of the third mounting plate close to the fourth mounting plate, and the fourth mounting plate is inserted into the second slot.

[0016] The second mounting plate and the fourth mounting plate are both provided with fixing components for fixing themselves.

[0017] By adopting the above technical solution, the first mounting plate, the third mounting plate, the second mounting plate and the fourth mounting plate are inserted into the mounting groove in sequence, so that the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate are fixed to each other, and then the second mounting plate and the fourth mounting plate are fixed using the fixing assembly to complete the installation of the stirring blade, so that the stirring blade and the sub-shaft can be detachably connected, thereby facilitating the replacement of the stirring blade.

[0018] Optionally, a third card slot and a fourth card slot are provided on two end faces of the third mounting plate that are perpendicular to the plane where the first card slot is provided, and the side edges of the first plug-in column are inserted into the third card slot, and the side edges of the second plug-in column are inserted into the fourth card slot.

[0019] By adopting the above technical solution, after the second mounting plate and the fourth mounting plate are inserted into the mounting slots, the side edges of the first plug-in column are inserted into the third card slot, and the side edges of the second plug-in column are inserted into the fourth card slot, thereby further increasing the degree of firmness of the fixation between the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate.

[0020] Optionally, both the second mounting plate and the fourth mounting plate are provided with limiting grooves, and the inner walls of the mounting grooves corresponding to the second mounting plate and the fourth mounting plate are provided with fixing grooves, and the fixing grooves correspond to the limiting grooves in position;

[0021] The fixing assembly includes a first slider, an electromagnet, and a first elastic member. The electromagnet is fixedly connected to the interior of the fixing groove. The first slider is disposed in the fixing groove and slides along the depth direction of the fixing groove. The distance between the first slider and the notch of the fixing groove is smaller than the distance between the electromagnet and the notch of the fixing groove.

[0022] The first elastic member is arranged between the electromagnet and the first slider, one end of the first elastic member is fixedly connected to the electromagnet, and the other end of the first elastic member is fixedly connected to the first slider, the first electromagnet can drive the first slider to move toward the limit groove, and the length of the first slider is greater than the depth of the limit groove.

[0023] By adopting the above technical solution, when the second mounting plate and the fourth mounting plate need to be disassembled, the electromagnet is turned on, so that the electromagnet drives the first slider to move into the fixed groove until it disengages from the limit groove, and then the second mounting plate and the fourth mounting plate can be disassembled and replaced.

[0024] Optionally, the connecting mechanism includes a sleeve, and adjacent ends of the sub-shafts close to each other are provided with threads, and the two adjacent sub-shafts are respectively inserted into both ends of the sleeve and threadedly connected to the sleeve.

[0025] By adopting the above technical solution, adjacent sub-shafts are fixed to each other by screwing the sleeve and the sub-shaft. When the sub-shaft needs to be replaced, the sleeve is screwed onto another sub-shaft to replace the sub-shaft, and there is no need to replace the entire main shaft, thereby reducing resource waste.

[0026] Optionally, the sleeve includes a first tube and a second tube, the first tube is rotatably connected to the second tube, one end of one of the adjacent sub-shafts is inserted into the first tube and rotatably connected to the first tube, one end of the other of the adjacent sub-shafts is inserted into the second tube and rotatably connected to the second tube, and the sleeve is provided with a linkage component for limiting the mutual rotation of the first tube and the second tube.

[0027] When the sleeve is integral, when installing the first split shaft, the sleeve can be rotated to thread the split shaft, but when installing the second split shaft, the split shaft needs to be rotated to thread the split shaft and the sleeve, which makes it inconvenient to install the split shaft. By adopting the above technical solution, when installing the first split shaft, the first tube is rotated to thread the first split shaft and the first tube is threaded, and when installing the second split shaft, the second tube is rotated to thread the second shaft and the split shaft, so there is no need to rotate the split shaft, thereby simplifying the installation steps and facilitating the installation of the split shaft.

[0028] Optionally, the linkage assembly includes a first linkage sleeve, a second linkage sleeve, and a second slider, and the inner walls of the first linkage sleeve and the second linkage sleeve are both connected to the second slider;

[0029] The first linkage sleeve is mounted on the first tube, and the second linkage sleeve is mounted on the second tube;

[0030] The side walls of the first tube and the second tube are both provided with a sliding groove, the sliding groove corresponds to the position of the second slider, and the second slider is inserted into the sliding groove and slides in the sliding groove;

[0031] A surface of the first link sleeve close to the second link sleeve is fixedly connected with a plurality of fixing columns, a surface of the second link sleeve close to the first link sleeve is provided with a plurality of fixing blind holes, and the fixing columns correspond to the fixing blind holes in position and shape.

[0032] By adopting the above technical solution, the first connecting sleeve and the second connecting sleeve are fixedly connected to each other, thereby limiting the mutual rotation between the first cylinder and the second cylinder, so that the multiple sub-shafts form a main shaft, and the multiple sub-shafts can rotate synchronously.

[0033] Optionally, the side walls of the first tube and the second tube are both fixedly connected with a rotating column.

[0034] By adopting the above technical solution, during the process of rotating the first tube and the second tube, the user holds the rotating column, which makes it easier for the user to exert force, thereby facilitating the rotation of the first tube and the second tube, thereby optimizing the installation process.

[0035] In a second aspect, the concrete mixing device provided by the present application adopts the following technical solution: the concrete mixing device using the above-mentioned concrete mixing head includes a cabinet and a driving member, and a connecting mechanism is also provided between the output end of the driving member and the main shaft, and the driving member drives the main shaft to rotate;

[0036] The stirring head is arranged in the cabinet, and a margin adjustment mechanism is arranged in the cabinet. The margin adjustment mechanism includes a second elastic member, a first rotating shaft and a second rotating shaft, and the first rotating shaft is rotatably connected to the second rotating shaft.

[0037] A telescopic slot is provided on the inner wall of the cabinet, the first rotating shaft is arranged in the telescopic slot and slides in the telescopic slot, the second elastic member is arranged between the inner wall of the telescopic slot and the first rotating shaft, one end of the second elastic member is fixedly connected to the inner wall of the telescopic slot, and the other end of the second elastic member is fixedly connected to the first rotating shaft, and a connecting mechanism is also provided between the end of the main shaft away from the driving member and the second rotating shaft, and the main shaft and the second rotating shaft are connected to each other through the connecting mechanism.

[0038] When installing the last split shaft, there may be a certain error between the split shaft and the second rotating shaft, resulting in poor cooperation between the split shaft and the second rotating shaft. By adopting the above technical solution, when installing the last split shaft, the second rotating shaft is pushed into the telescopic groove, and the split shaft and the second rotating shaft are connected through the connecting mechanism. The second elastic member pushes the second rotating shaft in the direction of the split shaft, thereby making the cooperation between the split shaft and the second rotating shaft tighter. Moreover, when the number of split shafts changes, the margin can be adjusted to adapt to the main shaft formed by different numbers of split shafts.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] 1. The mixing blade is detachably connected to the main shaft through a mounting mechanism. When the mixing blade breaks, the mounting mechanism can be opened to replace the mixing blade, thereby reducing the process of re-welding the mixing blade and thus reducing the difficulty of maintenance. The main shaft is divided into several sub-shafts. When a section of the main shaft is damaged, only the sub-shaft of the damaged section needs to be replaced, thereby saving materials;

[0041] 2. After inserting the second and fourth mounting plates into the mounting slots, insert the side corners of the first posts into the third slots, and the side corners of the second posts into the fourth slots, thereby further increasing the securement between the first, second, third, and fourth mounting plates.

[0042] 3. When installing the last split shaft, push the second rotating shaft into the telescopic slot, and then connect the split shaft and the second rotating shaft through the connecting mechanism. The second elastic member pushes the second rotating shaft in the direction of the split shaft, thereby making the split shaft and the second rotating shaft fit more tightly. Moreover, when the number of split shafts changes, the margin can be adjusted to adapt to the main shaft formed by different numbers of split shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the concrete mixing head according to the embodiment of the present application.

[0044] Figure 2 It is a structural schematic diagram of the stirring blade in an embodiment of the present application.

[0045] Figure 3 It is a structural schematic diagram of the first blade in an embodiment of the present application.

[0046] Figure 4 It is a structural schematic diagram of the second blade in an embodiment of the present application.

[0047] Figure 5 It is a structural schematic diagram of the third blade in the embodiment of the present application.

[0048] Figure 6 It is a structural schematic diagram of the fourth blade in the embodiment of the present application.

[0049] Figure 7 It is a schematic cross-sectional structural diagram of an embodiment of the present application showing the positional relationship between the fixing assembly and the split shaft.

[0050] Figure 8 It is a structural diagram of the connection mechanism of an embodiment of the present application.

[0051] Figure 9 It is a cross-sectional structural diagram illustrating the positional relationship between the connecting mechanism and the linkage assembly according to an embodiment of the present application.

[0052] Figure 10 This is a schematic cross-sectional view of the positional relationship between the concrete drill bit and the cabinet according to an embodiment of the present application.

[0053] In the figure, 1, main shaft; 11, sub-shaft; 111, mounting slot; 112, fixing slot;

[0054] 2. Stirring blade; 21. First blade; 22. Second blade; 23. Third blade; 24. Fourth blade;

[0055] 3. Mounting mechanism; 31. First mounting plate; 311. Second slot; 312. Third slot; 32. Second mounting plate; 321. First pin; 33. Third mounting plate; 331. First slot; 332. Second slot; 333. Third slot; 334. Fourth slot; 34. Fourth mounting plate; 341. Second pin; 35. First slot; 36. Limiting slot;

[0056] 4. Fixing assembly; 41. First slider; 42. Electromagnet; 43. First elastic member;

[0057] 5. Connecting mechanism; 51. Sleeve; 511. First tube; 512. Second tube; 513. Slide;

[0058] 6. Linkage assembly; 61. First linkage sleeve; 611. Fixed column; 62. Second linkage sleeve; 621. Fixed blind hole; 63. Second slider; 64. Rotating column;

[0059] 71. Cabinet; 711. Telescopic slot; 72. Driving part;

[0060] 8. Margin adjustment mechanism; 81. Second elastic member; 82. First rotating shaft; 83. Second rotating shaft. DETAILED DESCRIPTION

[0061] The following is combined with Figure 1 -Attached Figure 10 , further details of this application are given.

[0062] Example 1:

[0063] Concrete mixing head, see Figure 1 , including a main shaft 1 and a stirring blade 2, the main shaft 1 includes several sub-shafts 11, and the several sub-shafts 11 are connected in sequence. A stirring blade 2 is provided on each sub-shaft 11, and an installation mechanism 3 is provided between the stirring blade 2 and the sub-shaft 11. The stirring blade 2 is connected to the sub-shaft 11 through the installation mechanism 3. A connecting mechanism 5 is provided between adjacent sub-shafts 11, and adjacent sub-shafts 11 are connected to each other through the connecting mechanism 5.

[0064] Reference Figure 1 and Figure 2 The stirring blade 2 includes a first blade 21, a second blade 22, a third blade 23 and a fourth blade 24. The first blade 21, the second blade 22, the third blade 23 and the fourth blade 24 are evenly arranged around the sub-axis 11 and the first blade 21, the second blade 22, the third blade 23 and the fourth blade 24 are all inclined relative to the sub-axis 11.

[0065] The mounting mechanism 3 includes a first mounting plate 31, a second mounting plate 32, a third mounting plate 33 and a fourth mounting plate 34. The first mounting plate 31 is fixedly connected to the end of the first blade 21 close to the sub-shaft 11, the second mounting plate 32 is fixedly connected to the end of the second blade 22 close to the sub-shaft 11, the third mounting plate 33 is fixedly connected to the end of the third blade 23 close to the sub-shaft 11, and the fourth mounting plate 34 is fixedly connected to the end of the fourth blade 24 close to the sub-shaft 11.

[0066] Reference Figure 2 and Figure 3 A first slot 35 is formed at one end of the first mounting plate 31 and the third mounting plate 33 close to the split shaft 11 .

[0067] Reference Figure 4 and Figure 5 The second mounting plate 32 is fixedly connected to a side of the second mounting plate 32 close to the sub-shaft 11 with a first plug post 321. There are two first plug posts 321, and the two first plug posts 321 are respectively located at both ends of the side of the second mounting plate 32 close to the sub-shaft 11. The fourth mounting plate 34 is fixedly connected to an end close to the sub-shaft 11 with a second plug post 341. There are two second plug posts 341. The two second plug posts 341 are respectively located at both ends of the side of the fourth mounting plate 34 close to the sub-shaft 11.

[0068] Reference Figure 3 and Figure 4 The first mounting plate 31 is provided with two second slots 311 and two third slots 312. The positions of the two second slots 311 correspond to the positions of the two first pins 321 and the shapes thereof are adapted. Figure 5 The positions of the two third slots 312 correspond to the positions of the two second plug posts 341 and their shapes are adapted.

[0069] Reference Figure 2 and Figure 6 The third mounting plate 33 has a first card slot 331 on its side near the second mounting plate 32, and the second mounting plate 32 is inserted into the first card slot 331. The third mounting plate 33 has a second card slot 332 on its side near the fourth mounting plate 34, and the fourth mounting plate 34 is inserted into the second card slot 332. A third card slot 333 and a fourth card slot 334 are provided on two end surfaces perpendicular to the end surface of the third mounting plate 33 where the first card slot 331 is provided. There are two third card slots 333, and the two third card slots 333 are respectively located on the two end surfaces of the third mounting plate 33. There are two fourth card slots 334, and the two fourth card slots 334 are respectively located on the two end surfaces of the third mounting plate 33. Figure 4 , the side corners of the first plug post 321 are inserted into the third slot 333. Figure 5 , the side edges of the second plug post 341 are inserted into the fourth slot 334 .

[0070] Reference Figure 1 and Figure 7 Four mounting slots 111 are provided on the sub-shaft 11 , and the positions of the four mounting slots 111 correspond to the positions of the first mounting plate 31 , the second mounting plate 32 , the third mounting plate 33 and the fourth mounting plate 34 , respectively.

[0071] Reference Figure 7 , combined with Figure 4 and Figure 5 The second mounting plate 32 and the fourth mounting plate 34 are both provided with a limiting groove 36, and the inner wall of the mounting groove 111 corresponding to the second mounting plate 32 and the fourth mounting plate 34 is provided with a fixing groove 112, and the fixing groove 112 corresponds to the position of the limiting groove 36. Figure 1A fixing assembly 4 is provided on the sub-shaft 11. The fixing assembly 4 includes a first slider 41, an electromagnet 42, and a first elastic member 43. The electromagnet 42 is fixedly connected to the bottom wall of the fixing groove 112. The first slider 41 is disposed within the fixing groove 112 and slides within the fixing groove 112. The distance between the first slider 41 and the notch of the fixing groove 112 is smaller than the distance between the electromagnet 42 and the notch of the fixing groove 112. The first elastic member 43 is disposed between the first slider 41 and the electromagnet 42. In this embodiment, the first elastic member 43 is a spring. One end of the first elastic member 43 is fixedly connected to the first slider 41, and the other end of the first elastic member 43 is fixedly connected to the electromagnet 42. The length of the first slider 41 is greater than the depth of the limiting groove 36.

[0072] Reference Figure 8 The connecting mechanism 5 includes a sleeve 51, a middle section of the sleeve 51 is provided with a thread, and areas without threads are left at both ends of the sleeve 51. The ends of adjacent sub-shafts 11 close to each other are both provided with threads, and the threads on the sub-shafts 11 are adapted to the threads in the sleeve 51.

[0073] The implementation principle of Example 1 of the present application is as follows: during the installation of the concrete mixing head, the electromagnet 42 is first turned on, so that the electromagnet 42 attracts the first slider 41 into the fixing groove 112, so that the first slider 41 completely enters the fixing groove 112, and then compresses the first elastic member 43, and then the first mounting plate 31 is inserted into the corresponding mounting groove 111 until the first mounting plate 31 abuts against the inner wall of the mounting groove 111, and then the third mounting plate 33 is inserted into the corresponding mounting groove 111, and the third mounting plate 33 is inserted into the first slot 35 on the first mounting plate 31, and the first mounting plate 31 is inserted into the first slot 35 on the third mounting plate 33, and when the third mounting plate 33 contacts the bottom of the corresponding mounting groove 111, the installation of the third mounting plate 33 is completed.

[0074] Then insert the second mounting plate 32 into the corresponding mounting slot 111, so that the two first pins 321 are respectively inserted into the corresponding second slots 311 and the side edges of the two first pins 321 are inserted into the corresponding third slots 333. When the first pins 321 contact the bottom of the corresponding mounting slot 111, the second mounting plate 32 is inserted into the first slot 331, so that the second mounting plate 32 and the third mounting plate 33 are fixed to each other.

[0075] Then insert the fourth mounting plate 34 into the corresponding mounting slot 111, insert the two second pins 341 into the corresponding third slots 312 and insert the side edges of the two second pins 341 into the corresponding fourth slots 334. When the second pins 341 contact the bottom of the corresponding mounting slot 111, the fourth mounting plate 34 is inserted into the second slot 332.

[0076] At this time, the electromagnet 42 is disconnected to restore the first elastic member 43 and drive the first slider 41 to reset, so that a part of the first slider 41 is inserted into the limiting groove 36 and the other part of the first slider remains in the fixing groove 112 .

[0077] Then, insert one of the adjacent sub-shafts 11 into one end of the sleeve 51, twist the sleeve 51, and screw the sleeve 51 and the sub-shaft 11 together. Then, insert the other sub-shaft 11 into the other end of the sleeve 51, twist the sub-shaft 11, and screw the sub-shaft 11 and the sleeve 51 together, thereby fixing the two adjacent sub-shafts 11 to each other.

[0078] When disassembling the sub-shaft 11 , the sleeve 51 can be rotated toward another adjacent sub-shaft 11 , so that the sleeve 51 is disengaged from the sub-shaft 11 to be disassembled, and the sub-shaft 11 can be disassembled.

[0079] Example 2:

[0080] The difference between this embodiment 2 and embodiment 1 lies in the improvement of the sleeve 51 .

[0081] Reference Figure 8 The sleeve 51 includes a first tube 511 and a second tube 512, which are rotatably connected to each other. The end of the first tube 511 close to the second tube 512 is provided with a thread, and the end of the second tube 512 close to the first tube 511 is provided with a thread. The end of the first tube 511 away from the second tube 512 has a non-threaded area, and the end of the second tube 512 away from the first tube 511 has a non-threaded area. Figure 1 One of the adjacent sub-shafts 11 is inserted into the first tube 511 and screwed to the first tube 511 , and the other of the adjacent sub-shafts 11 is inserted into the second tube 512 and screwed to the second tube 512 .

[0082] Reference Figure 8 and Figure 9 The sleeve 51 is provided with a linkage assembly 6, which includes a first linkage sleeve 61, a second linkage sleeve 62, and a second slider 63. Two second sliders 63 are fixedly connected to the inner walls of each of the first and second linkage sleeves 61 and 62, and the two second sliders 63 are symmetrically arranged. Two chute grooves 513 are defined on the sidewalls of the first and second cylinders 511 and 512, corresponding to the positions of the two second sliders 63. The second sliders 63 are inserted into and slide within the chute grooves 513. The first linkage sleeve 61 is mounted on the first cylinder 511, and the second linkage sleeve 62 is mounted on the second cylinder 512.

[0083] Reference Figure 9One end of the first connecting sleeve 61 close to the second connecting sleeve 62 is fixedly connected to a plurality of fixing columns 611, and one end of the second connecting sleeve 62 close to the first connecting sleeve 61 is provided with a plurality of fixing blind holes 621, and the plurality of fixing columns 611 correspond to the plurality of fixing blind holes 621 one by one.

[0084] Reference Figure 8 Two rotating columns 64 are fixedly connected to the first tube 511 and the second tube 512, and the two rotating columns 64 are symmetrically arranged.

[0085] The implementation principle of Example 2 of the present application is as follows: when installing adjacent sub-shafts 11, one sub-shaft 11 is inserted into the first tube 511, and then the rotating column 64 is held and the first tube 511 is rotated by the rotating column 64, thereby threading the sub-shaft 11 to the first tube 511. Then, another sub-shaft 11 is inserted into the second tube 512, and the second tube 512 is rotated by the rotating column 64, thereby threading the sub-shaft 11 to the second tube 512. Then, the first connecting sleeve 61 and the second connecting sleeve 62 are slid so that the first connecting sleeve 61 and the second connecting sleeve 62 abut against each other, thereby inserting the fixing column 611 into the fixing blind hole 621, and then using bolts to fix the fixing column 611 to the second connecting sleeve 62. In this way, several sub-shafts 11 are connected to form the main shaft 1.

[0086] This embodiment also discloses a concrete mixing device using the above-mentioned concrete mixing head.

[0087] Reference Figure 10 The concrete mixing device includes a cabinet 71 and a driver 72. In this embodiment, the driver 72 is a motor, fixedly connected to the side wall of the cabinet 71. A connecting mechanism 5 is also provided between the output end of the driver 72 and the main shaft 1. The output end of the driver 72 is threadedly connected to the first cylinder 511, and the second cylinder 512 is threadedly connected to the end of the main shaft 1 closest to the driver 72. The connecting mechanism 5 is also provided with a linkage assembly 6. The driver 72 and the main shaft 1 are fixedly connected via a first linkage sleeve 61 and a second linkage sleeve 62.

[0088] The stirring head is arranged in the cabinet 71, and a margin adjustment mechanism 8 is provided in the cabinet 71. The margin adjustment mechanism 8 includes a second elastic member 81, a first rotating shaft 82 and a second rotating shaft 83. The first rotating shaft 82 and the second rotating shaft 83 are rotatably connected. A telescopic slot 711 is opened on the inner wall of the cabinet 71. The first rotating shaft 82 is arranged in the telescopic slot 711 and slides in the telescopic slot 711. The second elastic member 81 is arranged between the inner wall of the telescopic slot 711 and the first rotating shaft 82. One end of the second elastic member 81 is fixedly connected to the inner wall of the telescopic slot 711, and the other end of the second elastic member 81 is fixedly connected to the first rotating shaft 82. A connecting mechanism 5 is also provided between the end of the main shaft 1 away from the driving member 72 and the second rotating shaft 83. A linkage assembly 6 is also provided on the connecting mechanism 5. The second rotating shaft 83 is inserted into the second cylinder 512 and is screwed to the second cylinder 512. The end of the main shaft 1 away from the driving member 72 is inserted into the first cylinder 511 and is screwed to the first cylinder 511. The first link sleeve 61 and the second link sleeve 62 are fixed to each other so that the main shaft 1 and the second rotating shaft 83 are fixed to each other.

[0089] The implementation principle of this embodiment is as follows: when installing the concrete mixing head, the mixing blade 2 is first installed on the split shaft 11, and then the split shaft 11 is connected to the output end of the driving member 72 through the connecting mechanism 5. The split shafts 11 are then installed section by section. When installing the last split shaft 11, the second rotating shaft 83 is first moved into the telescopic groove 711, and then the last split shaft 11 is installed between the previous split shaft 11 and the second rotating shaft 83. The last split shaft 11 is then installed on the connecting mechanism 5 via the connecting mechanism 5, thereby completing the installation of the concrete mixing shaft.

[0090] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A concrete mixing head, comprising a main shaft (1) and a mixing blade (2), characterized in that: The main shaft (1) includes a plurality of sub-shafts (11), the plurality of sub-shafts (11) are connected in sequence, and a connecting mechanism (5) for connecting adjacent sub-shafts (11) is provided between adjacent sub-shafts (11); The stirring blade (2) is provided on each of the sub-shafts (11), and a mounting mechanism (3) for mounting the stirring blade (2) is provided between the stirring blade (2) and the sub-shaft (11); The stirring blade (2) comprises a first blade (21), a second blade (22), a third blade (23) and a fourth blade (24), wherein the first blade (21), the second blade (22), the third blade (23) and the fourth blade (24) are arranged around the branch shaft (11); The mounting mechanism (3) comprises a first mounting plate (31), a second mounting plate (32), a third mounting plate (33) and a fourth mounting plate (34); The first mounting plate (31) is fixedly connected to one end of the first blade (21) close to the branch shaft (11), the second mounting plate (32) is fixedly connected to one end of the second blade (22) close to the branch shaft (11), the third mounting plate (33) is fixedly connected to one end of the third blade (23) close to the branch shaft (11), and the fourth mounting plate (34) is fixedly connected to one end of the fourth blade (24) close to the branch shaft (11); The first mounting plate (31) and the third mounting plate (33) are each provided with a first slot (35) at one end close to the sub-shaft (11); the second mounting plate (32) is fixedly connected to one end close to the sub-shaft (11) with a first plug post (321); and the fourth mounting plate (34) is fixedly connected to one end close to the sub-shaft (11) with a second plug post (341); A plurality of mounting slots (111) are provided on the split shaft (11), and each of the first mounting plate (31), the second mounting plate (32), the third mounting plate (33), and the fourth mounting plate (34) is provided with a mounting slot (111), and the first mounting plate (31), the second mounting plate (32), the third mounting plate (33), and the fourth mounting plate (34) are all inserted into the mounting slots (111); The first mounting plate (31) is provided with a second slot (311) and a third slot (312), the second slot (311) corresponds to the position of the first plug post (321), and the first plug post (321) is inserted into the second slot (311), the third slot (312) corresponds to the position of the second plug post (341), and the second plug post (341) is inserted into the third slot (312); A first card slot (331) is provided on a side of the third mounting plate (33) close to the second mounting plate (32), and the second mounting plate (32) is inserted into the first card slot (331); a second card slot (332) is provided on a side of the third mounting plate (33) close to the fourth mounting plate (34), and the fourth mounting plate (34) is inserted into the second card slot (332); The second mounting plate (32) and the fourth mounting plate (34) are both provided with a fixing assembly (4) for fixing themselves; A third card slot (333) and a fourth card slot (334) are provided on two end surfaces of the third mounting plate (33) perpendicular to the plane where the first card slot (331) is provided. The side edges of the first plug post (321) are inserted into the third card slot (333), and the side edges of the second plug post (341) are inserted into the fourth card slot (334).

2. The concrete mixing head according to claim 1, characterized in that: The second mounting plate (32) and the fourth mounting plate (34) are both provided with a limiting groove (36), and the inner walls of the mounting grooves (111) corresponding to the second mounting plate (32) and the fourth mounting plate (34) are both provided with a fixing groove (112), and the fixing groove (112) corresponds to the position of the limiting groove (36); The fixing assembly (4) includes a first slider (41), an electromagnet (42) and a first elastic member (43); the electromagnet (42) is fixedly connected to the inside of the fixing groove (112); the first slider (41) is arranged in the fixing groove (112) and slides along the depth direction of the fixing groove (112); the distance between the first slider (41) and the notch of the fixing groove (112) is smaller than the distance between the electromagnet (42) and the notch of the fixing groove (112); The first elastic member (43) is arranged between the electromagnet (42) and the first slider (41), one end of the first elastic member (43) is fixedly connected to the electromagnet (42), and the other end of the first elastic member (43) is fixedly connected to the first slider (41), and the electromagnet (42) can drive the first slider (41) to move in the direction of the limiting groove (36), and the length of the first slider (41) is greater than the depth of the limiting groove (36).

3. The concrete mixing head according to claim 1, characterized in that: The connecting mechanism (5) comprises a sleeve (51), and adjacent ends of the sub-shafts (11) close to each other are provided with threads, and the two adjacent sub-shafts (11) are respectively inserted into the two ends of the sleeve (51) and are threadedly connected to the sleeve (51).

4. The concrete mixing head according to claim 3, characterized in that: The sleeve (51) includes a first tube (511) and a second tube (512), wherein the first tube (511) is rotatably connected to the second tube (512), one end of one of the adjacent sub-axes (11) is inserted into the first tube (511) and is rotatably connected to the first tube (511), and one end of the other of the adjacent sub-axes (11) is inserted into the second tube (512) and is rotatably connected to the second tube (512), and a linkage assembly (6) is provided on the sleeve (51) for limiting the mutual rotation of the first tube (511) and the second tube (512).

5. The concrete mixing head according to claim 4, characterized in that: The linkage assembly (6) comprises a first linkage sleeve (61), a second linkage sleeve (62) and a second slider (63); the inner walls of the first linkage sleeve (61) and the second linkage sleeve (62) are both connected to the second slider (63); The first linkage sleeve (61) is sleeved on the first tube (511), and the second linkage sleeve (62) is sleeved on the second tube (512); The side walls of the first tube (511) and the second tube (512) are both provided with a sliding groove (513), the sliding groove (513) corresponds to the position of the second slider (63), and the second slider (63) is inserted into the sliding groove (513) and slides in the sliding groove (513); A plurality of fixing columns (611) are fixedly connected to a side of the first connecting sleeve (61) close to the second connecting sleeve (62), and a plurality of fixing blind holes (621) are provided on a side of the second connecting sleeve (62) close to the first connecting sleeve (61). The fixing columns (611) and the fixing blind holes (621) correspond in position and have matching shapes.

6. The concrete mixing head according to claim 5, characterized in that: The side walls of the first cylinder (511) and the second cylinder (512) are both fixedly connected with a rotating column (64).

7. A concrete mixing device using the concrete mixing head according to any one of claims 1 to 6, characterized in that: The concrete mixing device includes a cabinet (71) and a driving member (72), and a connecting mechanism (5) is also provided between the output end of the driving member (72) and the main shaft (1), and the driving member (72) drives the main shaft (1) to rotate; The stirring head is arranged in the cabinet (71), and a residual amount adjustment mechanism (8) is arranged in the cabinet (71). The residual amount adjustment mechanism (8) includes a second elastic member (81), a first rotating shaft (82) and a second rotating shaft (83). The first rotating shaft (82) is rotatably connected to the second rotating shaft (83). A telescopic slot (711) is provided on the inner wall of the cabinet (71), the first rotating shaft (82) is arranged in the telescopic slot (711) and slides in the telescopic slot (711), the second elastic member (81) is arranged between the inner wall of the telescopic slot (711) and the first rotating shaft (82), one end of the second elastic member (81) is fixedly connected to the inner wall of the telescopic slot (711), and the other end of the second elastic member (81) is fixedly connected to the first rotating shaft (82), and a connecting mechanism (5) is also provided between the end of the main shaft (1) away from the driving member (72) and the second rotating shaft (83), and the main shaft (1) and the second rotating shaft (83) are connected to each other through the connecting mechanism (5).

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