Concrete anti-caking stirring device

Abstract

The utility model provides a concrete anti-caking stirring device which comprises a support fixedly connected with the outlet end of a stirring tank, a water pipe is movably arranged on the support and penetrates through a hard pipe, and the end, close to the stirring tank, of the hard pipe enables the hard pipe to be flexibly connected with a spray head through a flexible pipe and a pipe section. When the traction strip is pulled, the spray head is driven to change the spraying angle, the moving range of the traction strip is limited through the fixing plate, and the traction stability is improved; the rotating seat enables the hard pipe arranged in the bearing frame in a penetrating mode to rotate in the horizontal direction, and the rotating shaft is arranged to enable the bearing frame and the hard pipe in the bearing frame to rotate in the vertical direction; and a sector gear of the control mechanism is driven by a revolute pair to reciprocate and simultaneously drives the rack and the traction strip to reciprocate. By adopting the technical scheme, the back of the blade in the stirring tank is effectively cleaned, and the labor intensity of an operator is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of concrete mixing equipment, and particularly relates to a concrete anti-caking mixing device. Background Art

[0002] A concrete mixing device is usually a device for mixing concrete materials, mainly used in construction sites or concrete production plants. Common concrete mixing devices include mixing barrels, mixing tanks mounted on mixer trucks, etc. After mixing, it is usually necessary to clean the concrete in the mixing tank to prevent the remaining concrete in the mixing tank from solidifying, which will reduce the mixing efficiency and mixing effect.

[0003] The Chinese invention patent with the application number CN202010666728.3 discloses an anti-caking concrete mixing equipment. Its anti-caking mechanism includes a fixed box, a feed pipe, a screw, a driving component, a mixing component, two crushing components, two first bearings and two discharge pipes. The crushing component includes a second bearing, a connecting shaft, a first gear, a second gear and several blades. The mixing component includes a rotating ring and two mixing units. It mainly breaks up the concrete in the mixing barrel through the crushing component and then discharges it. It can prevent caking. However, the method of cleaning after solidification causes greater wear to the equipment. For a mixer truck transporting concrete, the inside of the mixing tank will be flushed in time after transportation to reduce caking.

[0004] At present, water is mostly flushed into the concrete mixing tank through a water pipe, and then the rinsing sewage is discharged by the rotation of the mixing tank. However, since the inner wall of the mixing tank is provided with mixing blades, it is difficult for the water flushing pipe to flush the back of the mixing tank blades, resulting in poor flushing effect. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a concrete anti-caking mixing device aiming at the deficiencies in the above technologies, aiming to solve the problem that the back of the mixing tank blades is not easy to flush.

[0006] The utility model provides a concrete anti-caking mixing device, which includes a mixing tank and a bracket. The outlet end of the mixing tank is fixedly connected to the bracket. A water pipe is movably arranged on the bracket. The water pipe is arranged inside a hard pipe. One end of the hard pipe close to the mixing tank is flexibly connected with a spray head. The other end of the hard pipe is provided with a fixing mechanism for fixing the hard pipe. The spray head is fixedly connected with a traction strip for pulling the spray head to swing. The other end of the traction strip is movably connected with the fixing mechanism. A support mechanism for supporting the hard pipe is fixedly connected to the bracket. The hard pipe is movably connected with the support mechanism. The top end of the support mechanism is fixedly connected with a control mechanism for controlling the reciprocating movement of the traction strip to make the spray head swing. The control mechanism is movably connected with the traction strip.

[0007] Preferably, a plurality of telescopic hoses and pipe sections are fixedly connected between the rigid pipe and the nozzle, and the plurality of telescopic hoses and pipe sections are arranged at intervals with respect to each other. By providing the telescopic hoses and pipe sections, the rigid pipe and the nozzle are flexibly connected, so that when the traction strip is pulled, the nozzle is driven to change the spraying angle. The back of the blades in the mixing tank can be effectively cleaned.

[0008] Preferably, the fixing mechanism includes a fixing plate, an arc-shaped hole, and a limiting plate. The arc-shaped hole is formed in the fixing plate. The rigid pipe is fixedly connected to the fixing plate. One end of the traction strip away from the nozzle is fixedly connected to the limiting plate. The limiting plate is located on the side of the arc-shaped hole away from the nozzle. The traction strip moves within the arc-shaped hole. The diameter of the limiting plate is greater than the width of the arc-shaped hole.

[0009] Preferably, the supporting mechanism includes a base, a rotating seat, a triangular plate, a rotating shaft, and a supporting frame. The base is fixedly connected to the bracket. The rotating seat is rotatably connected to the base. The rotating shaft is rotatably connected between two triangular plates. The triangular plate is fixedly connected to the top of the rotating seat. The rotating shaft is fixedly connected to the supporting frame. The rigid pipe is movably inserted into the supporting frame. The supporting frame is provided with a slot, and the width of the slot is greater than the width of the traction strip. By providing the rotating seat, the rigid pipe inserted into the supporting frame can rotate in the horizontal direction. By providing the rotating shaft, the supporting frame and the rigid pipe therein can rotate in the vertical direction. The flexibility of the rigid pipe is effectively improved, and different areas in the mixing tank can be sprayed. Moreover, due to the support of the rotating seat and the like, the labor intensity of the operator is reduced.

[0010] Preferably, the control mechanism includes a back plate, a sector gear, a rack, a connecting rod, an end head, a rotating pair, a chute, a support rod, and a motor. The back plate is fixedly connected to the top of the supporting frame. The sector gear is fixedly connected to one end of the connecting rod. The connection between the sector gear and the connecting rod is rotatably connected to the back plate. The rack is fixedly connected to the traction strip. The rack meshes with the sector gear. The other end of the connecting rod is fixedly connected to the end head. The end head slides within the chute formed in the rotating pair. The rotating pair is rotatably connected to the support rod. The support rod is fixedly connected to the top of the supporting frame. The output end of the motor is fixedly connected to one end of the rotating pair. The motor is fixedly connected to the top of the supporting frame.

[0011] Preferably, the control mechanism further includes a supporting plate, a cushion plate, an arc-shaped plate, a telescopic rod, and a spring. The side of the supporting plate is fixedly connected to the top of the back plate. The cushion plate is fixedly connected to the bottom wall of the supporting plate. A plurality of telescopic rods arranged at equal intervals along the length direction of the supporting plate are fixedly connected to the side of the supporting plate away from the back plate. The spring is sleeved outside the telescopic rod. One end of the telescopic rod away from the supporting plate is fixedly connected to the arc-shaped plate. The arc-shaped plate movably buckles the traction strip. The cross section of the arc-shaped plate is arc-shaped. The length direction of the arc-shaped plate is parallel to the length direction of the supporting plate. By providing the control mechanism to reciprocally pull the traction strip, the angle of the nozzle changes reciprocally, effectively improving the convenience of operation.

[0012] Compared with the prior art, the following beneficial effects are achieved:

[0013] The utility model provides a concrete anti-caking stirring device. By arranging a bracket fixedly connected to the outlet end of the stirring tank, a water pipe is movably arranged on the bracket. The water pipe is arranged inside a hard pipe. One end of the hard pipe close to the stirring tank is flexibly connected to a spray head through a reducing hose and a pipe section, so that when a traction strip is pulled, the spray head is driven to change the spraying angle. The movement range of the traction strip is restricted by a fixing plate to improve the stability of traction. A rotating seat enables the hard pipe arranged inside a supporting frame to rotate in the horizontal direction, and a rotating shaft is arranged to enable the supporting frame and the hard pipe inside it to rotate in the vertical direction. The sector gear of a control mechanism is driven by a rotating pair to reciprocate, and at the same time drives a rack and the traction strip to reciprocate. By adopting the above technical scheme, the back of the blade inside the stirring tank is effectively cleaned, and the labor intensity of the operator is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following-described drawings are only the preferred embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of a concrete anti-caking stirring device of the present utility model;

[0016] Figure 2 It is a schematic diagram of a fixing mechanism, a control mechanism, a supporting mechanism and a spray head of the present utility model;

[0017] Figure 3 It is a partial enlarged schematic diagram A of the present utility model;

[0018] Figure 4 It is a partial enlarged schematic diagram B of the present utility model;

[0019] Figure 5 It is a partial enlarged schematic diagram C of the present utility model;

[0020] Figure 6 It is a partial enlarged schematic diagram D of the present utility model;

[0021] Figure 7 It is a schematic diagram of the end of the present utility model.

[0022] In the figure, stirring tank - 1; support - 11; water pipe - 2; rigid pipe - 31; traction bar - 32; nozzle - 33; telescopic hose - 34; pipe section - 35; fixing mechanism - 4; fixing plate - 41; arc-shaped hole - 42; limiting plate - 43; supporting mechanism - 5; base - 51; rotating seat - 52; triangular plate - 53; rotating shaft - 54; supporting frame - 55; slot - 551; control mechanism - 6; back plate - 611; sector gear - 612; rack - 613; connecting rod - 614; end - 615; rotating pair - 616; chute - 617; supporting rod - 618; motor - 619; supporting plate - 621; cushion plate - 622; arc-shaped plate - 623; telescopic rod - 624; spring - 625. Detailed implementation mode

[0023] To better understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention will be described in detail below in conjunction with the drawings as follows:

[0024] Embodiment:

[0025] As shown in Figures 1 to 7 As shown, the present invention provides a concrete anti-caking stirring device, including a stirring tank 1 and a support 11. One end of the stirring tank 1 is connected to a rotating shaft 54 to make the stirring tank 1 rotate. The other end of the mixing tank is the feeding port and the discharging port. The support 11 is used to fix the feeding port and the discharging port. The outlet end of the stirring tank 1 is fixedly connected to the support 11. A water pipe 2 is movably arranged on the support 11. The water pipe 2 is a flexible pipe. The water pipe 2 is arranged inside a rigid pipe 31. One end of the rigid pipe 31 close to the stirring tank 1 is flexibly connected to a nozzle 33. The end of the water pipe 2 inside the rigid pipe 31 is fixedly connected to the nozzle 33, and the pipe wall of the water pipe 2 and the flexible connection part are fixed by gluing. The other end of the rigid pipe 31 is provided with a fixing mechanism 4 for fixing the rigid pipe 31. The nozzle 33 is fixedly connected with a traction bar 32 for pulling the nozzle 33 to swing. The traction bar 32 is made of a rigid material, such as a metal bar. Pulling the traction bar 32 makes the nozzle 33 change the spraying angle to spray both the front and back of the blade. The other end of the traction bar 32 is movably connected to the fixing mechanism 4. A supporting mechanism 5 for supporting the rigid pipe 31 is fixedly connected to the support 11. The rigid pipe 31 is movably connected to the supporting mechanism 5. The top of the supporting mechanism 5 is fixedly connected with a control mechanism 6 for controlling the reciprocating movement of the traction bar 32 so that the nozzle 33 swings. The control mechanism 6 is movably connected to the traction bar 32.

[0026] The flexible connection between the rigid pipe 31 and the nozzle 33 is as follows: A plurality of telescopic hoses 34 and pipe sections 35 are fixedly connected between the rigid pipe 31 and the nozzle 33, and the plurality of telescopic hoses 34 and pipe sections 35 are arranged at intervals with each other. The telescopic hose 34 is made of rubber material, and the pipe section 35 is made of metal material.

[0027] As another embodiment, as shown inFigure 2 and Figure 3 As shown in Figure 3 , the fixing mechanism 4 of the present application includes a fixing plate 41, an arc-shaped hole 42, and a limiting plate 43. The arc-shaped hole 42 is opened in the fixing plate 41. The hard pipe 31 is fixedly connected to the fixing plate 41. One end of the traction strip 32 away from the nozzle 33 is fixedly connected to the limiting plate 43. The limiting plate 43 is located on the side of the arc-shaped hole 42 away from the nozzle 33. The traction strip 32 moves within the arc-shaped hole 42. The diameter of the limiting plate 43 is greater than the width of the arc-shaped hole 42. The fixing plate 41 fixes the hard pipe 31, and the water pipe 2 passes through the fixing plate. The side of the water pipe 2 away from the nozzle 33 is connected to a water pump. During use, the hard pipe 31 remains stationary, and the nozzle 33 is horizontal with the hard pipe 31. When the traction strip 32 is pulled to move away from the fixing plate 41, the angle between the nozzle 33 and the hard pipe 31 becomes larger until the angle changes to 90° - 180°, and then the back of the blade can be sprayed. When the traction strip 32 is released, the traction strip 32 resets. By reciprocally pulling the traction strip 32, spraying of various parts inside the mixing tank 1 can be realized.

[0028] As another embodiment, as Figure 2 and Figure 5 shown, the support mechanism 5 of the present application includes a base 51, a rotating seat 52, a triangular plate 53, a rotating shaft 54, and a supporting frame 55. The base 51 is fixedly connected to the bracket 11. The rotating seat 52 is rotatably connected to the base 51. The rotating shaft 54 is rotatably connected between the two triangular plates 53. The triangular plate 53 is fixedly connected to the top of the rotating seat 52. The rotating shaft 54 is fixedly connected to the supporting frame 55. The hard pipe 31 is movably disposed within the supporting frame 55. The supporting frame 55 is provided with a slot 551, and the width of the slot 551 is greater than the width of the traction strip 32. The rotating seat 52 is circular. When the rotating seat 52 rotates on the base 51, it drives the supporting frame 55 and the hard pipe 31 to rotate horizontally on the rotating seat 52. The rotating shaft 54 enables the supporting frame 55 and the hard pipe 31 therein to rotate in the vertical direction. The flexibility of the hard pipe 31 is effectively improved, and different areas inside the mixing tank 1 can be sprayed. Moreover, due to the support of the rotating seat 52 and the like, the labor intensity of the operator is reduced.

[0029] As another embodiment, as Figure 2 、 Figure 5 and Figure 6As shown in the figure, the control mechanism 6 of the present application includes a back plate 611, a sector gear 612, a rack 613, a connecting rod 614, a head 615, a rotating pair 616, a sliding groove 617, a support rod 618 and a motor 619. The back plate 611 is fixedly connected to the top end of the supporting frame 55. The sector gear 612 is fixedly connected to one end of the connecting rod 614. The connection part of the sector gear 612 and the connecting rod 614 is rotatably connected to the back plate 611. The rack 613 is fixedly connected to the traction bar 32, and the rack 613 is arranged along the entire length direction of the traction bar 32. The rack 613 meshes with the sector gear 612. The other end of the connecting rod 614 is fixedly connected to the head 615. The head 615 slides in the sliding groove 617 opened on the rotating pair 616. The sliding groove 617 is a closed circle engraved along the rotating pair 616. The rotating pair 616 is rotatably connected to the support rod 618. The support rod 618 is fixedly connected to the top end of the supporting frame 55. The output end of the motor 619 is fixedly connected to one end of the rotating pair 616. The motor 619 is fixedly connected to the top end of the supporting frame 55. The teeth of the sector gear 612 are arc-shaped, which is convenient for remeshing with the rack 613.

[0030] During use, the motor 619 is turned on. The output end of the motor 619 drives the rotating pair 616 to rotate. The head 615 on the connecting rod 614 rotates in the circular ring groove opened on the rotating pair 616, and reciprocally swings around the axis of the connection part of the connecting rod 614 and the sector gear 612. The swinging of the sector gear 612 drives the rack 613 meshing with it and the traction bar 32 fixedly connected to the rack 613 to reciprocate, thereby driving the angle of the nozzle 33 to reciprocally change.

[0031] The control mechanism 6 further includes a supporting plate 621, a cushion plate 622, an arc plate 623, a telescopic rod 624 and a spring 625. The side of the supporting plate 621 is fixedly connected to the top end of the back plate 611. The cushion plate 622 is fixedly connected to the bottom wall of the supporting plate 621. A plurality of telescopic rods 624 arranged at equal intervals along the length direction of the supporting plate 621 are fixedly connected to the side of the supporting plate 621 away from the back plate 611. The spring 625 is sleeved outside the telescopic rod 624. The end of the telescopic rod 624 away from the supporting plate 621 is fixedly connected to the arc plate 623. The arc plate 623 movably buckles the traction bar 32. The cross-section of the arc plate 623 is arc-shaped, and the length direction of the arc plate 623 is parallel to the length direction of the supporting plate 621.

[0032] When it is necessary to adjust the length of the rigid pipe 31 extending into the stirring tank 1, turn off the motor 619, rotate the traction bar 32 with the rigid pipe 31 as the axis, the traction bar 32 disengages from the backing plate 622, pull or push the fixed plate 41, and the length of the rigid pipe 31 in the stirring tank 1 can be adjusted. When adjusted to the appropriate position, rotate the traction bar 32 with the rigid pipe 31 as the axis to make it engage with the sector gear 612 again. The arc plate 623 is squeezed by the traction bar 32 during the rotation of the traction bar 32. After re-engaging with the sector gear 612, the spring 625 drives the arc plate 623 to reset, and the arc plate 623 limits the traction bar 32 and the rack 613, making the engagement between the rack 613 and the sector gear 612 more stable. After use, rotate the traction bar 32 to the slot 551 of the support frame 55, pull the fixed plate 41, and the fixed plate 41 drives the rigid pipe 31 and the traction bar 32 to separate from the support frame 55. The slot 551 facilitates the passage of the connection between the traction bar 32 and the nozzle 33, and disassembly can be achieved.

[0033] In addition to rotating the traction bar 32, the traction bar 32 and the rigid pipe 31 can also be translated. The rigid pipe 31 disengages from the support frame 55 from the slot 551 of the support frame 55 to achieve disassembly. Similarly, when adjusting the length of the rigid pipe 31 in the stirring tank 1, after disassembling by the above method, after pulling or pushing the fixed plate 41, the rigid pipe 31 and the traction bar 32 are translated to the support frame 55 or the sector gear 612 again.

[0034] Working principle of a concrete anti-caking mixing device of the present application: During use, the water pipe 2 is fixedly connected to the hard pipe 31. Hold the fixing plate 41 by hand and insert the hard pipe 31 into the supporting frame 55. Rotate the limiting plate 43 to make the traction bar 32 move in the arc-shaped hole 42, so that the traction bar 32 presses the arc-shaped plate 623 and contacts the backing plate 622, and the rack 613 meshes with the sector gear 612. Turn on the motor 619, and the output end of the motor 619 drives the rotating pair 616 to rotate. The end 615 on the connecting rod 614 rotates in the circular ring groove opened in the rotating pair 616, and reciprocally swings around the axis at the connection of the connecting rod 614 and the sector gear 612. The swinging of the sector gear 612 drives the rack 613 meshing with it and the traction bar 32 fixedly connected to the rack 613 to reciprocate, thereby driving the angle of the nozzle 33 to reciprocally change. When it is necessary to adjust the length of the hard pipe 31 extending into the mixing tank 1, turn off the motor 619, rotate the traction bar 32 with the hard pipe 31 as the axis, the traction bar 32 disengages from the backing plate 622, pull or push the fixing plate 41, and the length of the hard pipe 31 in the mixing tank 1 can be adjusted. When adjusted to the appropriate position, rotate the traction bar 32 with the hard pipe 31 as the axis to make it mesh with the sector gear 612 again. The arc-shaped plate 623 is pressed by the traction bar 32 during the rotation of the traction bar 32. After re-meshing with the sector gear 612, the spring 625 drives the arc-shaped plate 623 to reset, and the arc-shaped plate 623 limits the traction bar 32 and the rack 613, making the meshing of the rack 613 and the sector gear 612 more stable. After use, rotate the traction bar 32 to the slot 551 of the supporting frame 55, pull the fixing plate 41, and the fixing plate 41 drives the hard pipe 31 and the traction bar 32 to separate from the supporting frame 55. The slot 551 facilitates the passage of the connection between the traction bar 32 and the nozzle 33, and disassembly can be achieved.

[0035] In addition to rotating the traction bar 32, the traction bar 32 and the hard pipe 31 can also be translated. The hard pipe 31 disengages from the supporting frame 55 from the slot 551 of the supporting frame 55 to achieve disassembly. Similarly, when adjusting the length of the hard pipe 31 in the mixing tank 1, after disassembling in the above manner, after pulling or pushing the fixing plate 41, the hard pipe 31 and the traction bar 32 are translated to the supporting frame 55 or the sector gear 612 again.

[0036] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, all changes, modifications, equivalent changes and modifications made to the above embodiments based on the technical solution of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of this technical solution.

Claims

1. A concrete anti-caking stirring device, comprising a stirring tank (1) and a bracket (11), wherein the outlet end of the stirring tank (1) is fixedly connected to the bracket (11), characterized in that The bracket (11) is movably provided with a water pipe (2), the water pipe (2) is inserted into a hard pipe (31), one end of the hard pipe (31) close to the mixing tank (1) is flexibly connected with a nozzle (33), the other end of the hard pipe (31) is provided with a fixing mechanism (4) for fixing the hard pipe (31), the nozzle (33) is fixedly connected with a traction bar (32) for traction the nozzle (33) to swing, the other end of the traction bar (32) is movably connected to the fixing mechanism (4), the bracket (11) is fixedly connected with a support mechanism (5) for supporting the hard pipe (31), the hard pipe (31) is movably connected to the support mechanism (5), the top end of the support mechanism (5) is fixedly connected with a control mechanism (6) for controlling the reciprocating motion of the traction bar (32) so as to make the nozzle (33) swing, and the control mechanism (6) is movably connected to the traction bar (32).

2. The concrete anti-caking mixing device according to claim 1, characterized in that: A plurality of telescopic hoses (34) and pipe sections (35) are fixedly connected between the hard pipe (31) and the nozzle (33), and the plurality of telescopic hoses (34) and pipe sections (35) are arranged at intervals from each other.

3. The concrete anti-caking stirring device according to claim 2, characterized in that: The fixing mechanism (4) comprises a fixing plate (41), an arc-shaped hole (42), and a limiting plate (43); the arc-shaped hole (42) is opened in the fixing plate (41); the hard tube (31) is fixedly connected to the fixing plate (41); one end of the traction bar (32) is fixedly connected to the limiting plate (43) at the principle of the nozzle (33); the limiting plate (43) is located on a side of the arc-shaped hole (42) away from the nozzle (33); the traction bar (32) moves in the arc-shaped hole (42); and the diameter of the limiting plate (43) is greater than the width of the arc-shaped hole (42).

4. The concrete anti-caking stirring device according to claim 1, characterized in that: The supporting mechanism (5) comprises a base (51), a rotating seat (52), a triangular plate (53), a rotating shaft (54) and a supporting frame (55); the base (51) is fixedly connected to the bracket (11); the rotating seat (52) is rotatably connected to the base (51); the rotating shaft (54) is rotatably connected between the two triangular plates (53); the triangular plate (53) is fixedly connected to the top of the rotating seat (52); the rotating shaft (54) is fixedly connected to the supporting frame (55); and the hard tube (31) is movably inserted into the supporting frame (55).

5. The concrete anti-caking stirring device according to claim 4, characterized in that: The control mechanism (6) comprises a back plate (611), a sector tooth (612), a rack (613), a connecting rod (614), an end (615), a rotating pair (616), a slide groove (617), a support rod (618) and a motor (619); the back plate (611) is fixedly connected to the top of the support frame (55); the sector tooth (612) is fixedly connected to one end of the connecting rod (614); the connection between the sector tooth (612) and the connecting rod (614) is rotatably connected to the back plate (611); the rack (613) is fixedly connected to the traction bar (3 2), the rack (613) is meshed with the fan-shaped teeth (612), the other end of the connecting rod (614) is fixedly connected to the end head (615), the end head (615) slides in a slide groove (617) provided on the rotating pair (616), the rotating pair (616) is rotatably connected to the support rod (618), the support rod (618) is fixedly connected to the top of the supporting frame (55), the output end of the motor (619) is fixedly connected to one end of the rotating pair (616), and the motor (619) is fixedly connected to the top of the supporting frame (55).

6. The concrete anti-caking mixing device according to claim 5, characterized in that: The control mechanism (6) further comprises a supporting plate (621), a pad (622), an arc-shaped plate (623), a telescopic rod (624) and a spring (625); the side of the supporting plate (621) is fixedly connected to the top of the back plate (611); the pad (622) is fixedly connected to the bottom wall of the supporting plate (621); a side of the supporting plate (621) away from the back plate (611) is fixedly connected to a plurality of telescopic rods (624) arranged equidistantly along the length direction of the supporting plate (621); the spring (625) is sleeved outside the telescopic rod (624); one end of the telescopic rod (624) away from the supporting plate (621) is fixedly connected to the arc-shaped plate (623); and the arc-shaped plate (623) is movably buckled with the traction bar (32).

7. The concrete anti-caking mixing device according to claim 5, characterized in that: The supporting frame (55) is provided with a slot (551), and the width of the slot (551) is greater than the width of the traction strip (32).

8. The concrete anti-caking mixing device according to claim 6, characterized in that: The cross section of the arc-shaped plate (623) is arc-shaped, and the length direction of the arc-shaped plate (623) is parallel to the length direction of the supporting plate (621).

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