CN220216106U - Full-closed automatic feeding system for ready-mixed concrete - Google Patents

Abstract

The application relates to a full-closed automatic feeding system for ready-mixed concrete, and relates to the technical field of concrete production. The feeding box comprises a feeding box with an opening at the top, a cover plate for plugging the opening at the top of the feeding box is hinged to the top wall of the feeding box, a bearing plate is horizontally arranged in the feeding box, the circumferential side wall of the bearing plate is attached to the inner wall of the feeding box, a sliding groove is formed in the inner wall of the feeding box along the vertical direction, the top end of the sliding groove penetrates through the top wall of the feeding box, a rotating rod is vertically inserted in the sliding groove and is rotationally connected to the inner wall of the sliding groove, a mounting block is fixed to the side wall of the bearing plate and is inserted in the sliding groove and sleeved on the rotating rod, and the mounting block is in threaded connection with the rotating rod and rotationally drives the mounting block to move up and down in the sliding groove. This application has the effect of being convenient for clear up whole feed box, can not cause the influence to the quality of concrete in the feed box to follow-up joining.

Description

Full-closed automatic feeding system for ready-mixed concrete

Technical Field

The application relates to the field of concrete production, in particular to a full-closed automatic feeding system for ready-mixed concrete.

Background

The concrete is an artificial stone which is prepared by taking cement as a main cementing material, mixing with water, sand and stones, doping chemical additives and mineral additives if necessary, mixing according to a proper proportion, uniformly stirring, compacting, forming, curing and hardening, and is widely applied to civil engineering.

In the related art, grant the chinese patent of bulletin number CN214609394U, disclose an automatic feeding system of concrete, including the feed bucket, the feed bucket top is equipped with the lid, and the apron top is equipped with driving motor, vertical being provided with the actuating lever in the feed bucket, and the actuating lever runs through the apron and is fixed with driving motor's output, and the bottom mounting of actuating lever has the diaphragm that the level set up, is fixed with the scraper bar on the diapire of diaphragm, and the scraper bar is vertical to be set up, is fixed with the doctor-bar on the scraper bar, and the length direction setting of scraper bar is followed to the scraper bar, and the lateral wall and the inner wall butt of feed bucket of doctor-bar.

When the scraper blade scraping device is used, the driving motor is started, the driving motor drives the driving rod to rotate, the driving rod drives the transverse plate to move, the transverse plate drives the scraper rod to move, and the scraper rod drives the scraper blade to move, so that the scraper blade abuts against and slides on the inner wall of the feed box, and the scraper blade is used for scraping the residual materials on the inner side wall of the feed barrel.

When the scraping blade slides on the inner wall of the feed box, the scraping blade is abutted with the residual material on the inner wall of the feed box and applies pushing force to the residual material, so that the residual material is scraped from the inner wall of the feed box, the scraping blade is used for scraping the residual material and simultaneously attached to the scraping blade, and the whole scraping blade is not easy to take out from the feed box for cleaning, so that part of the residual material is still located in the feed box, and the residual material is easy to harden after a long time. When new concrete is poured into the feed box, the new concrete is mixed with hardened residual materials on the scraping blade in the feed box, so that the quality of the concrete is affected, and the improvement is needed.

Disclosure of Invention

In order to solve the problems that the scraping blade for scraping the residual materials on the inner wall of the feed box is easy to attach the residual materials, is difficult to clean and affects the quality of concrete in the feed box, the application provides a full-closed automatic feeding system for ready-mixed concrete.

The application provides a full-closed automatic feed system of ready-mixed concrete adopts following technical scheme:

the utility model provides a full-closed automatic feed system of ready-mixed concrete, includes open-top's feed box, it has the apron that is used for shutoff feed box open-top to articulate on the roof of feed box, the horizontal shelf has the joint board in the feed box, the circumference lateral wall of joint board and the laminating of the inner wall of feed box, the spout has been seted up along vertical direction on the inner wall of feed box, the roof of feed box is run through on the top of spout, vertical inserted in the spout is equipped with the dwang, the dwang rotates to be connected on the inner wall of spout, be fixed with the installation piece on the lateral wall of joint board, the installation piece is inserted and is established in the spout and the cover is established on the dwang, installation piece and dwang threaded connection, dwang rotation drive installation piece reciprocates in the spout.

Through adopting above-mentioned technical scheme, under the initial state, accept the bottom that the board is located the feed box, after the concrete is poured into the feed box, the concrete all is located the top of accepting the board. During the use, rotate the apron to the direction of keeping away from the feed box for the open-top of feed box is the open-top, drives the dwang and rotates afterwards, because of dwang and installation piece screw thread fit, and accept the board again with the inner wall laminating of feed box, play the restriction effect, make the installation piece unable to rotate along with the axis of dwang for the axle, thereby make the installation piece finally take to accept the board along the length direction of dwang upwards remove, this in-process, accept the board and promote the concrete in the feed box and upwards remove, realize the top opening part ejection of compact of concrete from the feed box, simultaneously, the circumference lateral wall of accepting the board also slides on the inner wall of feed box, scrape the residual material that adheres to on the feed box inner wall and take off, and fall on accepting the board.

When the bearing plate moves to be flush with the top wall of the feed box, the concrete materials in the whole feed box are located on the bearing plate, the rotation of the rotating rod is stopped, the bearing plate is located at the opening of the feed box, the bearing plate is convenient to clean directly, after no residual materials exist on the bearing plate, the rotating rod is reversed, the bearing plate is made to move downwards to the bottom of the feed box, no residual materials exist in the whole feed box at the moment, and accordingly the quality of new concrete poured into the feed box in the follow-up process cannot be affected.

Optionally, the guide way has been seted up along vertical direction on the inner wall of feed box, the roof of feed box is run through on the top of guide way, vertical inserted in the guide way is equipped with the guide bar, the guide bar is fixed on the inner wall of guide way, be fixed with the guide block on the lateral wall of accept the board, the guide block inserts and establishes in the guide way and remove in the guide way, the guide block cover is established on the guide bar.

Through adopting above-mentioned technical scheme, when the dwang rotates, when the drive accepted board removed along vertical direction, the guide block also slipped on the guide bar, the lateral wall of guide bar and the inner wall butt of guide block play the effect of restriction direction for accept the board and remain the horizontality throughout and remove, be difficult for appearing the clearance between the inner wall of accepting board and feed box promptly, when having increased the stability of accepting the board removal, also increased the accuracy of accepting the board and scraped the incomplete material on the feed box inner wall.

Optionally, be fixed with the baffle on the roof of installation piece, the baffle is vertical to be inserted and establish in the spout and remove in the spout, the baffle is located one side that the dwang is close to the feed box axis for shutoff spout one side opening towards the feed box axis, be fixed with the shrouding on the roof of guide piece, the shrouding is vertical to be inserted and establish in the guide way and remove in the guide way, the shrouding is located one side that the guide bar is close to the feed box axis for shutoff guide way one side opening towards the feed box axis.

Through adopting above-mentioned technical scheme, when concrete pours into the feed box, the spout is lived in the shutoff of baffle for concrete can not get into in the spout, thereby make the concrete can not block in the helicitic texture on the dwang, the dwang rotates promptly and drives the installation piece and remove along vertical direction can not be restricted. Likewise, the sealing plate seals the guide groove, so that concrete cannot enter the guide groove, the guide groove cannot be blocked, and the movement of the guide block in the guide groove cannot be affected.

When the bearing plate moves upwards, the baffle plate is driven to extend out of the feed box from the top end of the chute, and the sealing plate is also driven to extend out of the feed box from the top end of the guide chute, so that the cleaning with the adhesive residue on the side walls of the baffle plate and the sealing plate is facilitated.

Optionally, be equipped with the protection pad on the circumference lateral wall of the board that holds, the protection pad is kept away from the one side of holding the board and is supported with the inner wall of feed box and paste.

Through adopting above-mentioned technical scheme, when accepting the board reciprocates, the protection pad slides on the inner wall of feed box, compares in accepting the board and directly slides on the inner wall of feed box, and the protection pad plays the guard action for be difficult for wearing and tearing between the lateral wall of accepting the board and the inner wall of feed box, prolonged the life who accepts the board.

Optionally, the protection pad is close to one side of accepting the board and is equipped with the plug, accept one side that the board is close to the protection pad and seted up the slot, the plug is inserted and is established in the slot.

Through adopting above-mentioned technical scheme, the protection pad can appear wearing and tearing after sliding on the inner wall of feed box for a long time, takes out the cutting of old protection pad out from the slot, aligns the slot with the cutting of new protection pad again, then takes place deformation with the cutting, in the slot is inserted with the cutting of being convenient for, after the cutting gets into in the slot, the cutting resumes deformation to be full of the slot, realize the installation of new protection pad on the board of accepting, the simple operation.

Optionally, be equipped with the locating plate on the feed box, the locating plate is laid along the width direction of feed box, the vertical connecting plate that is provided with in both ends of locating plate, one side that the connecting plate is close to the feed box is fixed with the connecting block, the spread groove has been seted up along the length direction of feed box on the lateral wall of feed box, the connecting block is inserted and is established in the spread groove and remove in the spread groove, works as when the top opening of feed box is plugged up to the apron, the one end of apron is located between the both ends of spread groove, the diapire of locating plate and the roof butt of apron are used for the restriction the apron rotates.

Through adopting above-mentioned technical scheme, when the apron is the top opening that the horizontality sealed the feed box, remove the locating plate for the connecting block removes in the spread groove, the inner wall of spread groove and the lateral wall butt of connecting block play the effect of restriction direction to the connecting block, make the locating plate remain throughout along the direction that feed box width direction laid and remove, when the locating plate moved the top of apron, the diapire of locating plate played the restriction effect to the roof butt of apron, make the apron unable upwards overturn, increased apron shutoff feed box top opening's steadiness.

Optionally, the limiting hole has been seted up on the lateral wall of feed box, the limiting hole is located between the both ends of spread groove, it is equipped with the stopper to insert in the limiting hole, the stopper removes in the limiting hole, be provided with in the limiting hole and be used for keeping away from the advancing spacing spring of direction of feed box with the stopper, works as when the top opening of feed box is plugged up to the apron, stopper restriction locating plate is located the apron.

Through adopting above-mentioned technical scheme, after the top opening of feed box is covered to the apron, drive locating plate removes to the direction of apron, and this in-process is manual to press the stopper for stopper extrusion limit spring is accomodate in spacing hole, thereby is convenient for the connecting plate to cross the stopper and make the locating plate remove to the top of apron, and limit spring resumes deformation this moment, releases the spacing hole with the stopper. When the locating plate moves to the direction of keeping away from the apron, the lateral wall butt of connecting plate and stopper, stopper restriction connecting plate remove, and the locating plate maintains the state of butt on the apron roof promptly, has increased apron shutoff feed box open-top's steadiness.

When the cover plate needs to be opened, the limiting block is manually pressed to be stored in the limiting hole again, so that the positioning plate can be reset beyond the limiting block, namely, the positioning plate moves out of the upper side of the cover plate, the upper side of the cover plate is unlimited, the cover plate can be overturned upwards, and the top opening of the feed box is in an open state

Optionally, one side that the stopper was kept away from the apron is provided with the guide surface, the one end that the guide surface kept away from the feed box is to the direction slope setting that is close to the apron.

Through adopting above-mentioned technical scheme, the locating plate removes to the direction of apron, connecting plate and guide surface butt to when sliding on the guide surface, the guide surface plays the guide effect, makes stopper extrusion spacing spring accomodate to in the spacing hole, and the connecting plate of being convenient for passes over the stopper and removes to the top of apron, need not manual pressing, simple operation.

In summary, the present application includes at least one of the following beneficial effects:

1. the rotating rod is cheering to drive the bearing plate to move upwards, in the process, the bearing plate is propped against and slides on the inner wall of the feed box and scrapes off the residual material on the inner wall of the feed box, when the bearing plate moves to be flush with the top wall of the feed box, the concrete materials in the whole feed box are all positioned on the bearing plate, the rotation of the rotating rod is stopped, the bearing plate is positioned at the opening of the feed box, the bearing plate is convenient to clean directly, after no residual material exists on the bearing plate, the rotating rod is reversed, so that the bearing plate moves downwards to the bottom of the feed box, and no residual material exists in the whole feed box at the moment, so that the quality of new concrete poured into the feed box in the follow-up process is not influenced;

2. when the rotating rod rotates to drive the bearing plate to move along the vertical direction, the guide block also slides on the guide rod, the side wall of the guide rod is abutted with the inner wall of the guide block to play a role in limiting guide, so that the bearing plate always maintains horizontal movement, namely, a gap is not easy to appear between the bearing plate and the inner wall of the feed box, the stability of the movement of the bearing plate is improved, and meanwhile, the precision of the bearing plate for scraping the residual materials on the inner wall of the feed box is also improved.

Drawings

FIG. 1 is a schematic structural view of a fully closed automatic feeding system for ready-mixed concrete according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the connection of the receiving plate and the rotating lever and the guide lever;

FIG. 3 is a cross-sectional view of the structure of the connection between the receiving plate and the feed box;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a cross-sectional view of the structure of the connection of the locating plate to the feed tank;

fig. 6 is an enlarged view at B in fig. 5.

In the figure: 10. a feed box; 11. a chute; 12. a guide groove; 13. a connecting groove; 14. a limiting hole; 20. a cover plate; 30. a receiving plate; 31. a slot; 32. a mounting block; 321. a baffle; 33. a guide block; 331. a sealing plate; 40. a protective pad; 41. cutting; 50. a rotating lever; 60. a guide rod; 70. a positioning plate; 80. a connecting plate; 81. a connecting block; 90. a limiting block; 91. a guide surface; 110. and a limit spring.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a full-closed automatic feeding system for ready-mixed concrete. Referring to fig. 1 and 2, the ready mixed concrete full-closed automatic feeding system includes a top opened feeding box 10, a cover plate 20 is provided on a top wall of the feeding box 10, the cover plate 20 is provided along a length direction of the feeding box 10, and one side of the cover plate 20 in the length direction is hinged on the top wall of the feeding box 10 through a rotating shaft, when the cover plate 20 is entirely located above the feeding box 10 and horizontally placed, a bottom wall of the cover plate 20 is abutted with the top wall of the feeding box 10, and at this time, the cover plate 20 covers the top opening of the feeding box 10, so that the feeding box 10 is of a closed structure.

Referring to fig. 3 and 4, a receiving plate 30 is horizontally erected in the feed box 10, a protection pad 40 is arranged on a circumferential side wall of the receiving plate 30, a cutting 41 is integrally formed on one side of the protection pad 40 close to the receiving plate 30, a slot 31 is formed on the circumferential side wall of the receiving plate 30, the cutting 41 is inserted into the slot 31, installation of the protection pad 40 on the receiving plate 30 is achieved, and one side of the protection pad 40 away from the receiving plate 30 is attached to the inner wall of the feed box 10.

Referring to fig. 2 and 3, a mounting block 32 is fixed on a circumferential side wall of the receiving plate 30, a chute 11 is formed on an inner wall of one side in the length direction of the feed box 10, the chute 11 is vertically arranged, the top end of the chute penetrates through the top wall of the feed box 10, a rotating rod 50 is vertically inserted into the chute 11, the bottom end of the rotating rod 50 is rotatably connected to the inner wall of the chute 11, a motor is embedded in the bottom of the feed box 10, the output end of the motor is coaxially fixed with the bottom end of the rotating rod 50, and the motor is used for driving the rotating rod 50 to rotate. The rotating rod 50 is sleeved with a mounting block 32, the mounting block 32 is in threaded connection with the rotating rod 50, and the mounting block 32 is fixed on the side wall of the bearing plate 30.

Referring to fig. 2 and 3, a guide groove 12 is formed in the inner wall of the other side of the feed box 10 in the length direction, the guide groove 12 is vertically arranged, the top end of the guide groove 12 penetrates through the top wall of the feed box 10, a guide rod 60 is vertically inserted into the guide groove 12, the bottom end of the guide rod 60 is fixed on the inner wall of the guide groove 12, a guide block 33 is sleeved on the guide rod 60, the guide block 33 can slide on the guide rod 60, and the guide block 33 is fixed on the side wall of the receiving plate 30.

In the initial state, the receiving plate 30 is positioned at the bottom of the feed box 10, and after the concrete is poured into the feed box 10, the concrete is positioned above the receiving plate 30. When the feeding box is used, the cover plate 20 is rotated in a direction away from the feeding box 10, so that the top opening of the feeding box 10 is in an open state, then the motor is started to drive the rotating rod 50 to rotate, the rotating rod 50 is in threaded fit with the mounting block 32, the side wall of the guide rod 60 is abutted against the inner wall of the guide block 33, the guide limiting effect is achieved, the mounting block 32 cannot rotate along with the central axis of the rotating rod 50 as an axis, the mounting block 32 finally moves upwards along the length direction of the rotating rod 50 along with the bearing plate 30, in the process, the bearing plate 30 pushes concrete in the feeding box 10 to move upwards, the concrete is discharged from the top opening of the feeding box 10, meanwhile, the protective pad 40 on the circumferential side wall of the bearing plate 30 slides on the inner wall of the feeding box 10, and residual materials attached to the inner wall of the feeding box 10 are scraped off and fall on the bearing plate 30.

Referring to fig. 2 and 3, when the receiving plate 30 moves to be flush with the top wall of the feed box 10, the concrete material in the whole feed box 10 is located on the receiving plate 30, the rotation of the rotating rod 50 is stopped, the receiving plate 30 is located at the opening of the feed box 10, so that the receiving plate 30 is convenient to be cleaned directly, after no residue is left on the receiving plate 30, the rotating rod 50 is reversed, so that the receiving plate 30 moves down to the bottom of the feed box 10, no residue is left in the whole feed box 10, and the quality of new concrete poured into the feed box 10 is not affected.

Referring to fig. 2 and 3, in order to prevent concrete from entering the chute 11 and the guide groove 12, affecting the movement of the mounting block 32 and the guide block 33, a baffle 321 is fixed on the top wall of the mounting block 32, the baffle 321 is vertically disposed and adapted to be inserted in the chute 11 for blocking the opening of the chute 11 toward one side of the central axis of the feed box 10. A sealing plate 331 is fixed on the top wall of the guide block 33, and the sealing plate 331 is vertically arranged and is adapted to be inserted into the guide groove 12 for sealing an opening of the guide groove 12 towards one side of the central axis of the feed box 10.

When concrete is poured into the feed box 10, the baffle 321 blocks the chute 11, so that the concrete cannot enter the chute 11, and the concrete cannot be blocked in the threaded structure on the rotating rod 50, namely, the rotating rod 50 rotates to drive the mounting block 32 to move in the vertical direction, and the movement is not limited. Likewise, the sealing plate 331 seals the guide groove 12 so that concrete does not enter the guide groove 12, so that the guide groove 12 is not blocked and movement of the guide block 33 in the guide groove 12 is not affected.

Referring to fig. 1 and 5, when the cover plate 20 covers the top opening of the feed tank 10, in order to prevent the cover plate 20 from rotating, so that the feed tank 10 is opened, causing a phenomenon of concrete dumping, a positioning plate 70 is provided on the feed tank 10, the positioning plate 70 is horizontally placed above the feed tank 10, and the distance from the bottom wall of the positioning plate 70 to the top wall of the feed tank 10 is equal to the thickness of the cover plate 20. The locating plate 70 is distributed along the width direction of the feed box 10, connecting plates 80 are fixed at two ends of the locating plate 70, the connecting plates 80 are vertically arranged, connecting blocks 81 are fixed on one side, close to the feed box 10, of the connecting plates 80, connecting grooves 13 are formed in the outer side wall of the feed box 10 along the length direction of the feed box 10, and the connecting blocks 81 are inserted into the connecting grooves 13 and can move in the connecting grooves 13. Wherein the rotating shaft is positioned at one end of the feed tank 10 in the length direction, the connecting groove 13 is positioned at the other end of the feed tank 10 in the length direction, when the cover plate 20 is horizontally placed to cover the top opening of the feed tank 10, one side of the cover plate 20 away from the rotating shaft is positioned between the two ends of the connecting groove 13,

when the cover plate 20 is in a horizontal state to cover the top opening of the feed box 10, the positioning plate 70 is moved, so that the connecting block 81 moves in the connecting groove 13, the inner wall of the connecting groove 13 is abutted against the side wall of the connecting block 81, the limiting guide function is played on the connecting block 81, the positioning plate 70 always keeps moving along the direction of the width direction of the feed box 10, when the positioning plate 70 moves to the upper side of the cover plate 20, the bottom wall of the positioning plate 70 is abutted against the top wall of the cover plate 20, the cover plate 20 is limited, the cover plate 20 cannot be overturned upwards, and the stability of the cover plate 20 for blocking the top opening of the feed box 10 is improved.

Referring to fig. 1 and 6, in order to increase the stability of the abutment of the positioning plate 70 on the cover plate 20, a limiting hole 14 is formed in the outer side wall of the feed box 10, a limiting block 90 is inserted in the limiting hole 14, the limiting block 90 can move in the limiting hole 14, a limiting spring 110 is further arranged in the limiting hole 14, one end of the limiting spring 110 is fixed with the inner wall of the limiting hole 14, and the other end of the limiting spring 110 is fixed with the limiting block 90, so that the limiting block 90 is pushed in a direction away from the feed box 10. Wherein, one side of the limiting block 90 away from the rotating shaft is cut with a guiding surface 91, and one end of the guiding surface 91 away from the feed box 10 is obliquely arranged towards the direction approaching to the cover plate 20.

After the cover plate 20 covers the top opening of the feed box 10, the positioning plate 70 is driven to move towards the cover plate 20 until the connecting plate 80 abuts against the guide surface 91, and when the connecting plate 80 slides on the guide surface 91, the guide surface 91 plays a guiding role, so that the limiting block 90 extrudes the limiting spring 110 to be stored in the limiting hole 14, the connecting plate 80 is convenient to move to the upper side of the cover plate 20 beyond the limiting block 90, and at the moment, the limiting spring 110 is deformed in a recovery mode, and the limiting block 90 is pushed out of the limiting hole 14. When the positioning plate 70 moves in a direction away from the cover plate 20, the connecting plate 80 abuts against the side wall of the limiting block 90, and the limiting block 90 limits the movement of the connecting plate 80, i.e. the positioning plate 70 maintains the abutting state on the top wall of the cover plate 20, so that the stability of the cover plate 20 for blocking the top opening of the feed box 10 is increased.

Referring to fig. 1 and 6, when the cover 20 needs to be opened, the stopper 90 is manually pressed to be received in the stopper hole 14 again, so that the positioning plate 70 can be reset beyond the stopper 90, that is, the positioning plate 70 moves out of above the cover 20, so that the cover 20 is unrestricted above, so that the cover 20 can be turned upwards, and the top opening of the feed tank 10 is opened.

The implementation principle of the full-closed automatic feeding system for ready-mixed concrete is as follows: when the feeding box is used, the cover plate 20 is rotated in a direction away from the feeding box 10, so that the top opening of the feeding box 10 is in an open state, then the rotating rod 50 is driven to rotate, so that the mounting block 32 finally moves upwards along the length direction of the rotating rod 50 with the bearing plate 30, in the process, the bearing plate 30 pushes concrete in the feeding box 10 to move upwards, the concrete is discharged from the top opening of the feeding box 10, meanwhile, the circumferential side wall of the bearing plate 30 slides on the inner wall of the feeding box 10, and the residual materials attached to the inner wall of the feeding box 10 are scraped off and fall on the bearing plate 30.

When the receiving plate 30 moves to be flush with the top wall of the feed box 10, the concrete materials in the whole feed box 10 are located on the receiving plate 30, the rotation of the rotating rod 50 is stopped, the receiving plate 30 is located at the opening of the feed box 10, the receiving plate 30 is convenient to clean directly, after no residue is left on the receiving plate 30, the rotating rod 50 is reversed, the receiving plate 30 moves downwards to the bottom of the feed box 10, no residue is left in the whole feed box 10 at this time, and accordingly the quality of new concrete poured into the feed box 10 in the following process is not affected.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a full-closed automatic feeding system of ready-mixed concrete, its characterized in that, including open-top's feed box (10), articulated on the roof of feed box (10) have apron (20) that are used for shutoff feed box (10) open-top, horizontal shelf in feed box (10) has accepted board (30), the circumference lateral wall that accepts board (30) is laminated with the inner wall of feed box (10), spout (11) have been seted up along vertical direction on the inner wall of feed box (10), the roof of feed box (10) is run through on the top of spout (11), vertical inserted in spout (11) has dwang (50), dwang (50) swivelling joint is on the inner wall of spout (11), be fixed with installation piece (32) on accepting the lateral wall of board (30), installation piece (32) are inserted and are established on dwang (50), installation piece (32) and dwang (50) threaded connection, dwang (50) swivelling drive installation piece (32) are in spout (11) down.

2. The full-closed automatic feeding system for ready-mixed concrete according to claim 1, wherein a guide groove (12) is formed in the inner wall of the feeding box (10) along the vertical direction, the top end of the guide groove (12) penetrates through the top wall of the feeding box (10), a guide rod (60) is vertically inserted in the guide groove (12), the guide rod (60) is fixed on the inner wall of the guide groove (12), a guide block (33) is fixed on the side wall of the bearing plate (30), the guide block (33) is inserted in the guide groove (12) and moves in the guide groove (12), and the guide block (33) is sleeved on the guide rod (60).

3. The full-closed automatic feeding system for ready-mixed concrete according to claim 2, wherein a baffle plate (321) is fixed on the top wall of the mounting block (32), the baffle plate (321) is vertically inserted in the chute (11) and moves in the chute (11), the baffle plate (321) is positioned on one side of the rotating rod (50) close to the central axis of the feeding box (10) and used for blocking an opening of the chute (11) towards the central axis of the feeding box (10), a sealing plate (331) is fixed on the top wall of the guide block (33), the sealing plate (331) is vertically inserted in the guide groove (12) and moves in the guide groove (12), and the sealing plate (331) is positioned on one side of the guide rod (60) close to the central axis of the feeding box (10) and used for blocking an opening of the guide groove (12) towards the central axis of the feeding box (10).

4. The full-closed automatic feeding system for ready-mixed concrete according to claim 1, wherein a protective pad (40) is arranged on the circumferential side wall of the receiving plate (30), and one side of the protective pad (40) away from the receiving plate (30) is abutted against the inner wall of the feeding box (10).

5. The full-closed automatic feeding system for ready-mixed concrete according to claim 4, wherein a cutting (41) is arranged on one side of the protective pad (40) close to the receiving plate (30), a slot (31) is formed on one side of the receiving plate (30) close to the protective pad (40), and the cutting (41) is inserted into the slot (31).

6. The full-closed automatic feeding system for ready-mixed concrete according to claim 1, wherein a positioning plate (70) is arranged on the feeding box (10), the positioning plate (70) is arranged along the width direction of the feeding box (10), two ends of the positioning plate (70) are vertically provided with connecting plates (80), one side, close to the feeding box (10), of each connecting plate (80) is fixedly provided with a connecting block (81), a connecting groove (13) is formed in the outer side wall of the feeding box (10) along the length direction of the feeding box (10), the connecting blocks (81) are inserted into the connecting grooves (13) and move in the connecting grooves (13), when the top opening of the feeding box (10) is blocked by the cover plate (20), one end of the cover plate (20) is located between two ends of the connecting grooves (13), and the bottom wall of the positioning plate (70) is abutted against the top wall of the cover plate (20) so as to limit the cover plate (20) to rotate.

7. The full-closed automatic feeding system for ready-mixed concrete according to claim 6, wherein a limiting hole (14) is formed in the outer side wall of the feeding box (10), the limiting hole (14) is located between two ends of the connecting groove (13), a limiting block (90) is inserted into the limiting hole (14), the limiting block (90) moves in the limiting hole (14), a limiting spring (110) for pushing the limiting block (90) in a direction away from the feeding box (10) is arranged in the limiting hole (14), and when the cover plate (20) seals the top opening of the feeding box (10), the limiting block (90) limits the positioning plate (70) to be located on the cover plate (20).

8. The full-closed automatic feeding system for ready-mixed concrete according to claim 7, wherein a guide surface (91) is arranged on one side of the limiting block (90) away from the cover plate (20), and one end of the guide surface (91) away from the feeding box (10) is obliquely arranged in a direction close to the cover plate (20).