Dragging type multifunctional concrete pump truck

Abstract

The invention relates to the related technical field of concrete pump trucks, and discloses a dragging type multifunctional concrete pump truck which comprises a pump truck body, an annular plate is fixedly arranged in the pump truck body, a stirring barrel is rotatably arranged on the inner side of the annular plate, a stirring assembly is arranged in the stirring barrel, and a pump body is fixedly arranged on the lower side of the pump truck body. An annular frame is fixedly arranged in the pump truck body, a plurality of through openings are formed in the interior of the annular frame and the interior of the stirring barrel in a mutually connected mode, a connecting pipe is arranged at one end of the pump body and the interior of the annular frame in a connected mode, and a conveying pipe is arranged at the other end of the pump body. First stirring rods rotate to drive first stirring plates to rotate so as to adjust the stirring angle, concrete in the stirring barrel can be further stirred uniformly, two adjacent first stirring plates rotate, two moving plates are far away from each other, a plurality of first stirring blocks slide out of second stirring plates, and the stirring efficiency is improved. The stirring contact area is enlarged, and the concrete stirring effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field related to concrete pump trucks, and more specifically, particularly relates to a towable multifunctional concrete pump truck. Background Art

[0002] A concrete pump truck is a machine that uses pressure to continuously transport concrete along a pipeline. It consists of a pump body and a delivery pipe. The concrete pump truck transmits the power of the engine to the hydraulic pump group or the rear axle through the power transfer case. The hydraulic pump pushes the piston to drive the concrete pump to work. The concrete is transported to a certain height and distance using the placing boom and delivery pipe on the pump truck. In order to prevent the concrete from solidifying, a stirring mechanism is usually required when the concrete pump truck is pouring concrete to improve the uniformity of the concrete and prevent the concrete from solidifying and blocking the delivery pipe. However, the concrete pump trucks in the prior art have the following defects: There is a Chinese patent application number CN218061499U that discloses a pump truck for pouring building concrete. The motor and the support frame are used to drive the fixed rod, the stirring frame and the cutting knife to rotate in the inner cavity of the hopper to stir the concrete. At the same time, the cutting knife and the saw teeth on the outer wall cut the large pieces of concrete, which is beneficial to improve the uniformity of concrete mixing and prevent the concrete from solidifying and causing the feed pipe to be blocked, thereby improving the working efficiency of the pump truck. The above technical solution has the following defects: such a stirring mechanism is arranged horizontally, and in actual use, the concrete at the edge of the hopper is difficult to stir completely, and it will be transmitted to the feed pipe on both sides of the stirring rod, making the stirring effect not uniform.

[0003] In the prior art, during the transportation of concrete, a concrete pump truck usually needs to use a stirring assembly to stir the concrete to prevent the concrete from solidifying in the mixing drum; however, the angle of the stirring plate in the stirring assembly cannot be adjusted, resulting in poor concrete mixing effect, and concrete solidification is prone to occur, causing the concrete to be easily blocked in the delivery pipe, affecting the use of the concrete.

[0004] In the prior art, during the process of mixing concrete by the mixing assembly in the concrete pump truck, since the mixing area of ​​the mixing assembly in contact with the concrete cannot be adjusted, a small part of the concrete does not contact the mixing assembly, resulting in a small part of the concrete not being stirred, and further causing a small part of the concrete to be stratified, thereby affecting the use of the concrete.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a towable multifunctional concrete pump truck is provided to achieve a more practical and valuable purpose. Summary of the invention

[0006] The present invention provides a towable multifunctional concrete pump truck, which is used to overcome the above-mentioned defects in the prior art.

[0007] The purpose and effect of the towable multifunctional concrete pump truck of the present invention are achieved by the following specific technical means: A towed multifunctional concrete pump truck comprises a pump truck body, an annular plate is fixedly provided inside the pump truck body, a mixing drum is rotatably provided inside the annular plate, a mixing assembly is provided inside the mixing drum, a pump body is fixedly provided on the lower side of the pump truck body, an annular frame is fixedly provided inside the pump truck body, the inside of the annular frame and the inside of the mixing drum are connected to each other and are provided with a plurality of through openings, a plurality of movable plates are fixedly provided in a circumferential array on the outer side of the mixing drum, each of the movable plates slides inside the annular frame, one end of the pump body is connected to the inside of the annular frame by a connecting pipe, and the other end of the pump body is provided with a delivery pipe; the mixing assembly comprises a rotating block The rotating block rotates on the mixing drum, and a first sleeve is sleeved on the outer side of the rotating block. A plurality of first stirring rods are arranged on the first sleeve. Two first stirring plates are symmetrically fixedly arranged on the outer side of each of the first stirring rods. A second stirring plate is arranged between each adjacent two of the first stirring plates. Two slide plates are symmetrically slidably arranged inside each of the second stirring plates. Two movable plates are respectively arranged on both sides of the second stirring plate. A plurality of first stirring blocks are connected between the two slide plates and the two movable plates respectively. A plurality of protrusions are fixedly arranged on the sides of the two movable plates away from each other, and a first elastic member is connected between each of the protrusions and the first stirring plate.

[0008] According to a further technical solution, a plurality of hollow parts are connected between the two sides of the two slides that are away from each other and the inner sides of the second stirring plate, the inner side of the annular frame is in sliding contact with the outer side of the stirring drum, one end of each of the first stirring blocks is fixedly connected to one side of the movable plate, and the other end of each of the first stirring blocks is in contact with one side of the slide.

[0009] According to a further technical solution, two second stirring blocks are slidably provided on both sides of one end of each first stirring block toward the movable plate, two first guide blocks are fixedly provided on the side where the two second stirring blocks are close to each other, a second guide block is slidably provided inside the first stirring block, and both ends of the second guide block are in contact with the inclined surfaces of one end of the two first guide blocks respectively.

[0010] According to a further technical solution, a connecting rod is fixedly connected between each of the second guide blocks and the slide plate, each of the connecting rods is in sliding contact with the first stirring block, and a second elastic member is connected to each other between the sides of each two of the second stirring blocks that are close to each other.

[0011] According to a further technical solution, a second stirring rod is slidably provided inside each of the first stirring rods, a scraper is rotatably provided at one end of each of the second stirring rods, the outer side of each scraper is in sliding contact with the inner wall of the stirring drum, and a spring is connected between the other end of each of the second stirring rods and the inside of the first stirring rod.

[0012] A further technical solution is that a first stepper motor is fixedly provided on one side of the pump truck body, a driving wheel is fixedly provided on the outer side of the output end of the first stepper motor, an inlet and outlet are provided at one end of the mixing drum, a sealing cover is detachably provided on the inner side of the inlet and outlet, a driven wheel is fixedly provided on the other end of the mixing drum, and a conveyor belt is connected between the outer sides of the driving wheel and the driven wheel.

[0013] According to a further technical solution, a second stepper motor is fixedly provided on the driven wheel, and an output end of the second stepper motor is fixedly connected to one end of the rotating block.

[0014] A further technical solution is that the vertical cross-section of the rotating block is a square structure, the outer side of the rotating block is in sliding contact with the inner side of the first sleeve, a second sleeve is fixedly provided at one end of the interior of the mixing drum, the inner side of the second sleeve is in sliding contact with the outer side of the first sleeve, two sliding blocks are symmetrically fixed on the outer side of one end of the first sleeve, and two sliding grooves are symmetrically provided on the inner side of the second sleeve, the two sliding blocks slide inside the two sliding grooves respectively, and the two sliding grooves are connected to each other at the head and tail to form a wavy sliding groove structure.

[0015] According to a further technical solution, one end of each of the first stirring rods is rotatably connected to the first sleeve, one end of each of the first stirring rods is in sliding contact with the rotating block, a gear is fixedly provided on the outer side of one end of each of the first stirring rods, two racks are symmetrically fixed inside the rotating block, and the outer side of each of the gears is meshed with one side of the rack.

[0016] According to a further technical solution, two wheels are rotatably provided on both sides of the lower end of the pump truck body, two telescopic support rods are symmetrically provided on the lower end of the pump truck body, and a traction frame is fixedly provided in the middle of the lower end of the pump truck body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The towed multifunctional concrete pump truck of the present invention is provided with a stirring assembly. Through the arrangement of the rotating block, the first sleeve, the first stirring rod, and the first stirring plate in the stirring assembly, the rotating block rotates to drive the first sleeve to rotate, and the first sleeve rotates to drive the first stirring rods and the first stirring plates to rotate, thereby stirring the concrete in the mixing drum. Then, through the arrangement of the second sleeve, the slider, and the slide groove, the first sleeve rotates to drive the two sliders to slide in the two slide grooves respectively, and the two slide grooves are connected to each other at the head and tail to form a wavy slide groove structure, and the cross-section of the rotating block is a square structure, so that the rotating block rotates to drive the first sleeve to rotate and can make the first sleeve move back and forth axially at the same time, and the first sleeve rotates and moves back and forth to drive the first stirring rods and the first stirring plates to rotate and move back and forth, so that the concrete inside the mixing drum can be stirred evenly. Finally, through the arrangement of gears and racks, the movement of the first sleeve drives the movement of the first stirring rods, and the outer side of the gear is meshed with one side of the rack. The movement of the first stirring rod drives the gear to move, thereby causing the first stirring rod to move and rotate. The rotation of the first stirring rod drives the first stirring plate to rotate and adjust the stirring angle, which is beneficial to further improve the uniform mixing of the concrete inside the mixing drum and prevent solidification.

[0018] The present invention discloses a towable multifunctional concrete pump truck. Through the arrangement of the first stirring rod, the first stirring plate, the second stirring plate, the first stirring block, the movable plate, the protrusion, and the first elastic member, the two adjacent first stirring rods rotate and the corresponding two first stirring plates cooperate with the first elastic members and the protrusion to rotate the second stirring plate. At this time, the rotation of the second stirring plate is subject to the resistance of the concrete, so that the two movable plates are separated from each other, and the first stirring blocks are slid out from the inside of the second stirring plate, so as to expand the stirring contact area, improve the stirring effect on the concrete, and reduce the occurrence of concrete solidification. Then, the two adjacent first stirring rods rotate by the two first stirring plates rotating and cooperate with the first elastic members and the protrusion, continue to pull the two movable plates away from each other, so that the first stirring blocks are fully slid out from the inside of the second stirring plate, further expand the stirring area of ​​the stirring assembly in contact with the concrete, and reduce the occurrence of part of the concrete not in contact with the stirring assembly. In addition, the two adjacent first stirring plates rotate to adjust the stirring angle, and the second stirring plate can be swung to change the stirring angle through the first elastic member and the protrusion, so as to fully stir the concrete. Then, through the arrangement of the second stirring block, the first guide block, the second guide block, and the connecting rod, the movement of the moving plate drives the movement of the first stirring block, and the movement of the first stirring block cooperates with the sliding plate to be held immobile by the hollow member, so that the connecting rod moves in the first stirring block. The two ends of the second guide block are respectively in contact with the inclined surfaces of one end of the two first guide blocks, and the movement of the connecting rod drives the movement of the second guide block, so that the two first guide blocks can be moved away from each other, and the two first guide blocks move away from each other, driving the two second stirring blocks to move away from each other, so as to further improve the stirring effect of the stirring assembly on the concrete and prevent the concrete from solidifying.

[0019] The towed multifunctional concrete pump truck of the present invention is provided with a first stirring rod, a second stirring rod, a scraper, and a spring. Under the action of the elastic force of the spring, the second stirring rod slides inside the first stirring rod, so that the scraper is always in sliding contact with the inside of the mixing drum. The first sleeve rotates to drive the first stirring rod, the second stirring rod, and the scraper to rotate, so that the concrete adsorbed on the inner wall of the mixing drum is scraped off and dropped. The first sleeve rotates and moves to drive the first stirring rod, the second stirring rod, and the scraper to rotate and move, and further scrapes off the concrete adsorbed on the inner wall of the mixing drum. The first stepper motor, the driving wheel, the driven wheel, and the conveyor belt are provided. The first stepper motor starts to drive the driving wheel to rotate, the driving wheel rotates to drive the driven wheel to rotate through the conveyor belt, the driven wheel rotates to drive the mixing drum to rotate, and the mixing drum and the stirring assembly rotate forward and backward, which is beneficial to improving the stirring effect on the concrete and reducing the adsorption of concrete on the inner wall of the mixing drum. Finally, through the arrangement of the annular frame, the movable plates and the through openings, the concrete in the mixing drum enters into the lower inner side of the annular frame through the several through openings, and then the mixing drum rotates to drive the several movable plates to rotate, and the several movable plates rotate to move the concrete at the lower inner side of the annular frame upward, and then the concrete returns to the mixing drum through the through openings on the upper side, so as to avoid the concrete solidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a first isometric structural schematic diagram of the present invention; Figure 2 It is a first isometric structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the top view structure of the present invention; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 5 for Figure 4 A schematic diagram of the structure of the partial enlarged view at C in the middle; Figure 6 for Figure 4 The structural schematic diagram of the local enlarged view at D in the middle; Figure 7 for Figure 4 The structural schematic diagram of the local enlarged view at E in the middle; Figure 8 for Figure 7 The structural schematic diagram of the local enlarged view at F in the middle; Fig. 9 for Figure 3 Schematic diagram of the cross-sectional structure at the middle BB; Fig.10 for Fig. 9 Schematic diagram of the structure of the local enlarged view at G in the middle.

[0023] Description of reference numerals: The pump truck body 10, the wheel 11, the telescopic support rod 12, the traction frame 13, the mixing drum 14, the inlet and outlet 15, the annular plate 16, the annular frame 17, the first stepping motor 18, the driving wheel 19, the driven wheel 20, the conveyor belt 21, the second stepping motor 22, the rotating block 23, the first sleeve 24, the second sleeve 25, the slider 26, the slide 27, the first stirring rod 28, the second stirring rod 29, the scraper 30, the spring 31, the first stirring plate 32, the gear 33, the rack 34, the second stirring plate 35, the slide plate 36, the first stirring block 37, the moving plate 38, the protrusion 39, the first elastic member 40, the hollow member 41, the second stirring block 44, the first guide block 45, the second elastic member 46, the second guide block 47, the connecting rod 48, the pump body 49, the movable plate 50, the connecting pipe 51, the delivery pipe 52, the sealing cover 53, and the through port 54. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] As attached Figure 1 To Attachment Fig.10 As shown: The invention provides a towable multifunctional concrete pump truck.

[0028] See attached Figure 1 To Attachment Fig.10 , including a pump truck body 10, an annular plate 16 is fixedly provided inside the pump truck body 10, a mixing drum 14 is rotatably provided inside the annular plate 16, a mixing assembly is provided inside the mixing drum 14, a pump body 49 is fixedly provided on the lower side of the pump truck body 10, an annular frame 17 is fixedly provided inside the pump truck body 10, the inside of the annular frame 17 is connected to the inside of the mixing drum 14 and a plurality of through-holes 54 are provided, a plurality of movable plates 50 are fixedly provided on the outer circumferential array of the mixing drum 14, each movable plate 50 slides inside the annular frame 17, one end of the pump body 49 is connected to the inside of the annular frame 17 and a connecting pipe 51 is provided, and a delivery pipe 52 is provided on the other end of the pump body 49; the mixing assembly includes a rotating block 23, the rotating block 23 Rotating on the mixing drum 14, the outer side of the rotating block 23 is sleeved with a first sleeve 24, and the first sleeve 24 is provided with a plurality of first stirring rods 28, and two first stirring plates 32 are symmetrically fixedly provided on the outer side of each first stirring rod 28, and a second stirring plate 35 is provided between each adjacent two first stirring plates 32, and two slide plates 36 are symmetrically slidably provided inside each second stirring plate 35, and two movable plates 38 are respectively provided on both sides of the second stirring plate 35, and a plurality of first stirring blocks 37 are connected between the two slide plates 36 and the two movable plates 38, and a plurality of protrusions 39 are fixedly provided on the side of the two movable plates 38 away from each other, and a first elastic member 40 is connected between each protrusion 39 and the first stirring plate 32.

[0029] Preferably, see Attachment Figure 7 , Attachment Figure 8 A plurality of hollow parts 41 are connected between the two sides of the two slide plates 36 that are away from each other and the inner sides of the second stirring plate 35, the inner side of the annular frame 17 is in sliding contact with the outer side of the stirring drum 14, one end of each first stirring block 37 is fixedly connected to one side of the movable plate 38, and the other end of each first stirring block 37 is in contact with one side of the slide plate 36.

[0030] Preferably, see Attachment Figure 7 , Attachment Figure 8Two second stirring blocks 44 are slidably provided on both sides of one end of each first stirring block 37 toward the movable plate 38, and two first guide blocks 45 are fixedly provided on the side where the two second stirring blocks 44 are close to each other. A second guide block 47 is slidably provided inside the first stirring block 37, and both ends of the second guide block 47 are in contact with the inclined surfaces of one end of the two first guide blocks 45 respectively.

[0031] Preferably, see Attachment Figure 7 , Attachment Figure 8 A connecting rod 48 is fixedly connected between each second guide block 47 and the slide plate 36, each connecting rod 48 is in sliding contact with the first stirring block 37, and a second elastic member 46 is connected to each other between the sides of each two second stirring blocks 44 that are close to each other.

[0032] Preferably, see Attachment Figure 4 , Attachment Figure 7 A second stirring rod 29 is slidably provided inside each first stirring rod 28, a scraper 30 is rotatably provided at one end of each second stirring rod 29, the outer side of each scraper 30 is in sliding contact with the inner wall of the stirring drum 14, and a spring 31 is connected between the other end of each second stirring rod 29 and the inside of the first stirring rod 28.

[0033] Preferably, see Attachment Figure 1 To Attachment Figure 4 A first stepper motor 18 is fixedly provided on one side of the pump truck body 10, a driving wheel 19 is fixedly provided on the outer side of the output end of the first stepper motor 18, an inlet and outlet 15 is provided at one end of the mixing drum 14, a sealing cover 53 is detachably provided on the inner side of the inlet and outlet 15, a driven wheel 20 is fixedly provided on the other end of the mixing drum 14, and a conveyor belt 21 is connected between the outer side of the driving wheel 19 and the outer side of the driven wheel 20.

[0034] Preferably, see Attachment Figure 2 , Attachment Figure 4 , Attachment Figure 5 A second stepping motor 22 is fixedly provided on the driven wheel 20 , and an output end of the second stepping motor 22 is fixedly connected to one end of the rotating block 23 .

[0035] Preferably, see Attachment Figure 5 , Attachment Fig.10 The vertical cross-section of the rotating block 23 is a square structure. The outer side of the rotating block 23 is in sliding contact with the inner side of the first sleeve 24. A second sleeve 25 is fixedly provided at one end of the interior of the mixing drum 14. The inner side of the second sleeve 25 is in sliding contact with the outer side of the first sleeve 24. Two sliders 26 are symmetrically fixedly provided on the outer side of one end of the first sleeve 24. Two slide grooves 27 are symmetrically provided on the inner side of the second sleeve 25. The two sliders 26 slide inside the two slide grooves 27 respectively. The two slide grooves 27 are connected to each other head to tail to form a wave-shaped slide groove structure.

[0036] Preferably, see Attachment Figure 7 One end of each first stirring rod 28 is rotatably connected to the first sleeve 24, and one end of each first stirring rod 28 is in sliding contact with the rotating block 23. A gear 33 is fixedly provided on the outer side of one end of each first stirring rod 28, and two racks 34 are symmetrically fixed inside the rotating block 23. The outer side of each gear 33 is meshed with one side of the rack 34.

[0037] Preferably, see Attachment Figure 1 , Attachment Figure 2 Two wheels 11 are rotatably provided at both sides of the lower end of the pump truck body 10 , two telescopic support rods 12 are symmetrically provided at the lower end of the pump truck body 10 , and a traction frame 13 is fixedly provided in the middle of the lower end of the pump truck body 10 .

[0038] Specific use of the present invention: The staff pours the concrete raw materials into the interior of the mixing drum 14 through the inlet and outlet 15. Then, the staff installs the sealing cover 53 in the inlet and outlet 15. Next, the staff controls the stirring assembly to start, the second stepper motor 22 starts to drive the rotating block 23 to rotate, the rotating block 23 rotates to drive the first sleeve 24 to rotate, the first sleeve 24 rotates to drive the first stirring rods 28 and the first stirring plates 32 to rotate, so as to stir the concrete in the mixing drum 14. Among them, the rotation of two adjacent first stirring rods 28 is coordinated with the corresponding two first stirring plates 32 and the first elastic members 40 and the protrusions 39 to rotate the second stirring plate 35. At this time, the rotation of the second stirring plate 35 is subject to the resistance of the concrete, so that the two moving plates 38 are moved away from each other, and the two moving plates 38 are moved away from each other to drive the first stirring blocks 37 to slide out from the inside of the second stirring plate 35, so as to expand the stirring area of ​​the stirring assembly in contact with the concrete, which is conducive to improving the stirring effect of the concrete. The two adjacent first stirring plates 32 rotate and drive the second stirring plates 35 to move through the first elastic members 40. The movement of the second stirring plates 35 is resisted by the concrete, thereby stretching the first elastic members 40 to generate elastic force, and the distance between the second stirring plates 35 and the first stirring plates 32 is continuously increased. When the elastic force generated by the first elastic members 40 reaches a certain level, the distance between the second stirring plates 35 and the first stirring plates 32 is continuously reduced, so that the distance between the first stirring plates 32 and the second stirring plates 35 is continuously changed, which is beneficial to increase the moving frequency of the second stirring plates 35 in the mixing drum 14 and improve the mixing effect of the mixing assembly on the concrete.

[0039] At the same time, the first sleeve 24 rotates to drive the two sliders 26 to slide in the two slide grooves 27 respectively, and the two slide grooves 27 are connected to each other at the head and tail to form a wave-shaped slide groove structure, and the cross-section of the rotating block 23 is a square structure, so that the rotating block 23 rotates to drive the first sleeve 24 to rotate and can make the first sleeve 24 move back and forth axially. The rotation and back and forth movement of the first sleeve 24 drives the first stirring rods 28 and the first stirring plates 32 to rotate and move back and forth, so that the concrete inside the mixing drum 14 can be mixed evenly. And under the action of the elastic force of the spring 31, the second stirring rod 29 slides in the first stirring rod 28, so that the scraper 30 always slides in contact with the inner wall of the mixing drum 14, and the rotation of the first sleeve 24 drives the first stirring rod 28, the second stirring rod 29, and the scraper 30 to rotate, so that the concrete adsorbed on the inner wall of the mixing drum 14 is scraped off and dropped.

[0040] Then, the first sleeve 24 moves to drive the first stirring rods 28 to move, and the first stirring rods 28 move to drive the gear 33 to move through the outer side of the gear 33 and the meshing side of the rack 34, so that the first stirring rods 28 move and rotate, and the first stirring rods 28 rotate to drive the first stirring plate 32 to rotate and adjust the stirring angle, which is conducive to further improving the concrete inside the mixing drum 14 to be mixed evenly and prevent solidification. Among them, the two adjacent first stirring rods 28 rotate through the rotation of the two first stirring plates 32 and cooperate with the first elastic members 40 and the protrusions 39, and continue to pull the two moving plates 38 away from each other, so that the first stirring blocks 37 fully slide out from the inside of the second stirring plate 35, further expanding the stirring area of ​​the stirring assembly in contact with the concrete, and reducing the situation where the concrete does not contact the stirring assembly. And the two adjacent first stirring plates 32 rotate to adjust the stirring angle, and the second stirring plate 35 can be swung to change the stirring angle through the first elastic member 40 and the protrusion 39, so as to fully stir the concrete. Next, the moving plate 38 moves to drive the first stirring block 37 to move, and the first stirring block 37 moves to cooperate with the sliding plate 36 to be held immobile by the hollow member 41, so that the connecting rod 48 moves inside the first stirring block 37. The two ends of the second guide block 47 are in contact with the inclined surfaces of one end of the two first guide blocks 45 respectively, and the connecting rod 48 moves to drive the second guide block 47 to move, so that the two first guide blocks 45 move away from each other, and the two first guide blocks 45 move away from each other, driving the two second stirring blocks 44 to move away from each other, so as to further improve the stirring effect of the stirring assembly on the concrete and prevent the concrete from solidifying. The two second stirring blocks 44 move away from each other to stretch the second elastic member 46 to generate elastic force, which is conducive to resetting the two second stirring blocks 44 close to each other under the elastic action of the second elastic member 46.

[0041] Finally, the first stepper motor 18 starts to drive the driving wheel 19 to rotate, and the driving wheel 19 rotates to drive the driven wheel 20 to rotate through the conveyor belt 21, and the driven wheel 20 rotates to drive the mixing drum 14 to rotate. The mixing drum 14 and the mixing assembly rotate forward and backward, which is conducive to improving the mixing effect on the concrete and reducing the adsorption of concrete on the inner wall of the mixing drum 14. The concrete in the mixing drum 14 enters the lower side of the inner ring frame 17 through a plurality of through openings 54, and then the mixing drum 14 rotates to drive a plurality of movable plates 50 to rotate, and the plurality of movable plates 50 rotate to move the concrete located at the lower side of the inner ring frame 17 upward, and then the concrete is returned to the mixing drum 14 through the through openings 54 located at the upper side, so as to avoid the situation that the concrete solidifies. The pump body 49 starts to transfer the concrete at the lower side of the inner ring frame 17 to the delivery pipe 52 through the connecting pipe 51, and the staff transports the concrete to the pouring place by operating the delivery pipe 52. Among them, the staff can drive the towed concrete pump truck to move to a specific position through the two wheels 11 and the traction frame 13. The two telescopic support rods 12 cooperate with the two wheels 11 to support and fix the trailer concrete pump truck. Thus, the trailer concrete pump truck can not only transport concrete, but also prevent the concrete in the trailer concrete pump truck from being fully stirred and solidified and prevent the concrete from being adsorbed on the inner wall of the mixing drum 14, thereby reflecting the multifunctional effect of the trailer concrete pump truck.

[0042] A towable multifunctional concrete pump truck of the present invention is provided with a stirring assembly. Through the arrangement of a rotating block 23, a first sleeve 24, a first stirring rod 28, and a first stirring plate 32 in the stirring assembly, the rotating block 23 rotates to drive the first sleeve 24 to rotate, and the first sleeve 24 rotates to drive a plurality of first stirring rods 28 and a plurality of first stirring plates 32 to rotate, thereby stirring the concrete in the mixing drum 14. Then, through the arrangement of a second sleeve 25, a slider 26, and a chute 27, the first sleeve 24 rotates to drive two sliders 26 to slide in two chute 27 respectively, and the two chute 27 are connected head to tail to form a wave-shaped chute structure, and the cross section of the rotating block 23 is a square structure, so that the rotating block 23 rotates to drive the first sleeve 24 to rotate while enabling the first sleeve 24 to move back and forth axially, and the first sleeve 24 rotates and moves back and forth to drive a plurality of first stirring rods 28 and a plurality of first stirring plates 32 to rotate and move back and forth, so that the concrete inside the mixing drum 14 can be stirred evenly. Finally, through the arrangement of the gear 33 and the rack 34, the movement of the first sleeve 24 drives the first stirring rods 28 to move. The outer side of the gear 33 is meshed with one side of the rack 34. The movement of the first stirring rods 28 drives the gear 33 to move, thereby causing the first stirring rods 28 to move and rotate. The rotation of the first stirring rods 28 drives the first stirring plate 32 to rotate and adjust the stirring angle, which is beneficial to further improve the uniform mixing of the concrete inside the mixing drum 14 and prevent solidification.

[0043] The towable multifunctional concrete pump truck of the present invention is provided with a first stirring rod 28, a first stirring plate 32, a second stirring plate 35, a first stirring block 37, a movable plate 38, a protrusion 39, and a first elastic member 40. The two adjacent first stirring rods 28 rotate and cooperate with the corresponding two first stirring plates 32 and a plurality of first elastic members 40 and the protrusion 39 to rotate the second stirring plate 35. At this time, the rotation of the second stirring plate 35 is subject to the resistance of the concrete, so that the two movable plates 38 are separated from each other, and the plurality of first stirring blocks 37 slide out from the inside of the second stirring plate 35, so as to expand the stirring contact area, improve the stirring effect on the concrete, and reduce the situation of concrete solidification. Then, the two adjacent first stirring rods 28 rotate and cooperate with the two first stirring plates 32 to rotate and cooperate with the plurality of first elastic members 40 and the protrusion 39, and continue to pull the two movable plates 38 away from each other, so that the plurality of first stirring blocks 37 fully slide out from the inside of the second stirring plate 35, further expand the stirring area of ​​the stirring assembly in contact with the concrete, and reduce the situation of part of the concrete not in contact with the stirring assembly. The two adjacent first stirring plates 32 are rotated to adjust the stirring angle, and the second stirring plate 35 can be swung to change the stirring angle through the first elastic member 40 and the protrusion 39, so as to fully stir the concrete. Then, through the arrangement of the second stirring block 44, the first guide block 45, the second guide block 47, and the connecting rod 48, the moving plate 38 moves to drive the first stirring block 37 to move, and the first stirring block 37 moves to cooperate with the sliding plate 36 to be held immovable by the hollow member 41, so that the connecting rod 48 moves in the first stirring block 37. The two ends of the second guide block 47 are respectively in contact with the inclined surfaces of one end of the two first guide blocks 45 to cooperate with the movement of the connecting rod 48 to drive the second guide block 47 to move, so that the two first guide blocks 45 can be moved away from each other, and the two first guide blocks 45 move away from each other to drive the two second stirring blocks 44 to move away from each other, so as to further improve the stirring effect of the stirring assembly on the concrete and prevent the concrete from solidifying.

[0044] The towable multifunctional concrete pump truck of the present invention is provided with a first stirring rod 28, a second stirring rod 29, a scraper 30, and a spring 31. Under the action of the elastic force of the spring 31, the second stirring rod 29 slides inside the first stirring rod 28, so that the scraper 30 always makes sliding contact with the inside of the mixing drum 14. The first sleeve 24 rotates to drive the first stirring rod 28, the second stirring rod 29, and the scraper 30 to rotate, so that the concrete adsorbed on the inner wall of the mixing drum 14 is scraped off and dropped. The first sleeve 24 rotates and moves to drive the first stirring rod 28, the second stirring rod 29, and the scraper 30 to rotate and move, so that the concrete adsorbed on the inner wall of the mixing drum 14 is further scraped off and dropped. Then, through the arrangement of the first stepper motor 18, the driving wheel 19, the driven wheel 20, and the conveyor belt 21, the first stepper motor 18 is started to drive the driving wheel 19 to rotate, the driving wheel 19 rotates through the conveyor belt 21 to drive the driven wheel 20 to rotate, the driven wheel 20 rotates to drive the mixing drum 14 to rotate, the mixing drum 14 and the mixing assembly rotate forward and reversely, which is beneficial to improve the mixing effect on the concrete and reduce the adsorption of the concrete on the inner wall of the mixing drum 14. Finally, through the arrangement of the annular frame 17, the movable plate 50, and the through-port 54, the concrete in the mixing drum 14 enters the lower side of the inner part of the annular frame 17 through the plurality of through-ports 54, and then the mixing drum 14 rotates to drive the plurality of movable plates 50 to rotate, and the plurality of movable plates 50 rotate to move the concrete located at the lower side of the inner part of the annular frame 17 upward, and then the concrete is returned to the mixing drum 14 through the through-port 54 located at the upper side, so as to avoid the concrete solidification.

[0045] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A towable multifunctional concrete pump truck, characterized in that: The pump truck comprises a pump truck body (10), wherein an annular plate (16) is fixedly provided inside the pump truck body (10), a mixing drum (14) is rotatably provided inside the annular plate (16), a mixing assembly is provided inside the mixing drum (14), a pump body (49) is fixedly provided on the lower side of the pump truck body (10), an annular frame (17) is fixedly provided inside the pump truck body (10), the inside of the annular frame (17) and the inside of the mixing drum (14) are connected to each other and are provided with a plurality of through openings (54), a plurality of movable plates (50) are fixedly provided in a circular array on the outer circumference of the mixing drum (14), each of the movable plates (50) slides inside the annular frame (17), one end of the pump body (49) is connected to the inside of the annular frame (17) and is provided with a connecting pipe (51), and the other end of the pump body (49) is provided with a delivery pipe (52); The stirring assembly comprises a rotating block (23), wherein the rotating block (23) rotates on the stirring drum (14), a first sleeve (24) is sleeved on the outer side of the rotating block (23), a plurality of first stirring rods (28) are arranged on the first sleeve (24), two first stirring plates (32) are symmetrically fixedly arranged on the outer side of each first stirring rod (28), a second stirring plate (35) is arranged between each two adjacent first stirring plates (32), two slide plates (36) are symmetrically slidably arranged inside each second stirring plate (35), two movable plates (38) are respectively arranged on both sides of the second stirring plate (35), a plurality of first stirring blocks (37) are respectively connected between the two slide plates (36) and the two movable plates (38), a plurality of protrusions (39) are fixedly arranged on the sides of the two movable plates (38) away from each other, and a first elastic member (40) is connected between each protrusion (39) and the first stirring plate (32).

2. A towable multifunctional concrete pump truck according to claim 1, characterized in that: A plurality of hollow parts (41) are connected between the two sides of the two slide plates (36) that are away from each other and the inner sides of the second stirring plate (35), the inner side of the annular frame (17) is in sliding contact with the outer side of the stirring drum (14), one end of each of the first stirring blocks (37) is fixedly connected to one side of the movable plate (38), and the other end of each of the first stirring blocks (37) is in contact with one side of the slide plate (36).

3. The towable multifunctional concrete pump truck according to claim 1, characterized in that: Two second stirring blocks (44) are slidably provided on both sides of one end of each first stirring block (37) in the direction of the movable plate (38), two first guide blocks (45) are fixedly provided on the sides of the two second stirring blocks (44) close to each other, a second guide block (47) is slidably provided inside the first stirring block (37), and two ends of the second guide block (47) are respectively in contact with the inclined surfaces of one end of the two first guide blocks (45).

4. The towable multifunctional concrete pump truck according to claim 3, characterized in that: A connecting rod (48) is fixedly connected between each of the second guide blocks (47) and the slide plate (36), each of the connecting rods (48) is in sliding contact with the first stirring block (37), and a second elastic member (46) is connected to each other between the sides of each two of the second stirring blocks (44) that are close to each other.

5. The towable multifunctional concrete pump truck according to claim 1, characterized in that: A second stirring rod (29) is slidably disposed inside each of the first stirring rods (28); a scraper (30) is rotatably disposed at one end of each of the second stirring rods (29); the outer side of each of the scrapers (30) is in sliding contact with the inner wall of the stirring drum (14); and a spring (31) is connected between the other end of each of the second stirring rods (29) and the inside of the first stirring rod (28).

6. The towable multifunctional concrete pump truck according to claim 1, characterized in that: A first stepper motor (18) is fixedly provided on one side of the pump truck body (10), a driving wheel (19) is fixedly provided on the outer side of the output end of the first stepper motor (18), an inlet and outlet (15) is provided on one end of the mixing drum (14), a sealing cover (53) is detachably provided on the inner side of the inlet and outlet (15), a driven wheel (20) is fixedly provided on the other end of the mixing drum (14), and a conveyor belt (21) is connected between the outer sides of the driving wheel (19) and the outer sides of the driven wheel (20).

7. The towable multifunctional concrete pump truck according to claim 6, characterized in that: A second stepping motor (22) is fixedly disposed on the driven wheel (20), and an output end of the second stepping motor (22) is fixedly connected to one end of the rotating block (23).

8. The towable multifunctional concrete pump truck according to claim 7, characterized in that: The vertical cross-section of the rotating block (23) is a square structure. The outer side of the rotating block (23) is in sliding contact with the inner side of the first sleeve (24). A second sleeve (25) is fixedly provided at one end of the interior of the mixing drum (14). The inner side of the second sleeve (25) is in sliding contact with the outer side of the first sleeve (24). Two sliding blocks (26) are symmetrically fixedly provided on the outer side of one end of the first sleeve (24). Two sliding grooves (27) are symmetrically provided on the inner side of the second sleeve (25). The two sliding blocks (26) slide inside the two sliding grooves (27) respectively. The two sliding grooves (27) are connected to each other at the head and tail to form a wave-shaped sliding groove structure.

9. The towable multifunctional concrete pump truck according to claim 8, characterized in that: One end of each of the first stirring rods (28) is rotatably connected to the first sleeve (24), and one end of each of the first stirring rods (28) is in sliding contact with the rotating block (23). A gear (33) is fixedly provided on the outer side of one end of each of the first stirring rods (28), and two racks (34) are symmetrically fixedly provided inside the rotating block (23), and the outer side of each of the gears (33) is meshed with one side of the rack (34).

10. The towable multifunctional concrete pump truck according to claim 1, characterized in that: Two wheels (11) are rotatably provided on both sides of the lower end of the pump truck body (10), two telescopic support rods (12) are symmetrically provided on the lower end of the pump truck body (10), and a traction frame (13) is fixedly provided in the middle of the lower end of the pump truck body (10).

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