Building construction trolley facilitating unloading

Abstract

The invention provides a building construction trolley facilitating unloading. The building construction trolley comprises a movable base. The outer frame is installed on the top of the base in an overturning mode, and an inner car hopper used for containing building materials and capable of achieving self-vibration discharging is arranged in the outer frame; the scraping plate is arranged in the inner car hopper, and the scraping plate is provided with an outer edge strip which expands or contracts through inflation and deflation; the scraping plate is connected with a linear moving mechanism installed on the outer wall of the front face of the outer frame, an inflation mechanism and a deflation mechanism are arranged at the two ends of the linear moving mechanism respectively, and the deflation mechanism is close to an opening, used for discharging, of the inner car hopper. The driving assembly is connected with the linear moving mechanism, and the driving assembly is further connected with the inner car hopper. The scraper is driven by the linear moving mechanism to move in the inner car hopper, so that adhered materials are scraped off after unloading, and the effect of facilitating unloading is achieved; and meanwhile, after discharging, the materials are scraped off, and the materials can fall conveniently through the inner car hopper capable of discharging in a self-vibration mode.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a building construction wheelbarrow which is convenient for unloading. Background Art

[0002] In construction, wheelbarrows are a common means of transportation; they are usually used to transport construction materials such as cement, sand and other materials.

[0003] When unloading, traditional construction wheelbarrows tilt the bucket by turning it over so that the materials fall to the ground through gravity. When unloading materials with high humidity, the materials contain water. After unloading, some of the materials may adhere to the wall of the bucket. It may not be possible to pour them out cleanly by just dumping them. Therefore, construction workers need to manually scrape off the adhered materials, which causes inconvenient unloading and high labor intensity. Summary of the invention

[0004] In order to solve the technical problem of inconvenient unloading, the present invention provides a construction wheelbarrow which is convenient for unloading.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a construction wheelbarrow for convenient unloading, comprising a movable base; further comprising: an outer frame, the outer frame is flipped and installed on the top of the base, and an inner bucket for containing construction materials and capable of self-vibration unloading is arranged inside the outer frame; a scraper, the scraper is arranged inside the inner bucket, and the scraper is provided with an outer edge strip that can be expanded or contracted by inflation or deflation; the scraper is connected to a linear motion mechanism installed on the outer wall of the front side of the outer frame, and an inflation mechanism and an deflation mechanism are respectively arranged at both ends of the linear motion mechanism, and the deflation mechanism is close to an opening of the inner bucket for unloading; a drive assembly, the drive assembly is connected to the linear motion mechanism, and the drive assembly is also connected to the inner bucket.

[0007] In this technical solution, a linear moving mechanism is used to drive a scraper to move in the inner bucket, so that after unloading, adhered materials can be scraped off, thereby facilitating unloading. At the same time, after unloading, the materials are scraped off and passed through the inner bucket that can self-vibrate to discharge materials, making it easier for the materials to fall.

[0008] Preferably, the scraper includes a plate body, a connecting rod and a valve body assembly; the outer edge strip is fixedly installed to the edge of the plate body, the top of the plate body is elastically connected to one end of the connecting rod, and a connecting hose is fixedly laid along the length direction of the connecting rod, one end of the connecting hose extends into the plate body, and the connecting hose is connected to the inner cavity of the outer edge strip, and the other end of the connecting hose is connected to the valve body assembly.

[0009] In the technical solution, the valve body assembly and the connecting hose are used to allow the air in the outer edge strip to enter or be discharged.

[0010] Preferably, the valve body assembly includes a three-way pipe, a first one-way valve, a first one-way valve, a first end pipe and a second end pipe; one end of the three-way pipe is fixedly connected to the end of the connecting hose, and the other two ends of the three-way pipe are respectively fixedly installed with the first one-way valve and the second end pipe; the first one-way valve is fixedly connected to the first end pipe at one end away from the three-way pipe, and a circular hole with a larger aperture than the inner diameter of the first end pipe is provided at one end of the first end pipe away from the first one-way valve, and a rubber gasket is provided in the circular hole; the second end pipe is provided with an exhaust hole with a smaller aperture than the inner diameter of the second end pipe at one end away from the three-way pipe, and the exhaust hole is covered with a sealing disk located in the second end pipe, and a fixing seat is fixedly connected to the inner wall of the second end pipe, and the sealing disk and the fixing seat are elastically connected by a third spring.

[0011] In the technical solution, the first end tube and the second end tube in the valve body assembly are used for gas entry or gas discharge, respectively.

[0012] Preferably, the connecting rod is fixedly connected to a vertical positioning square rod, the top of the plate body is provided with a square groove which is clearance-matched with the square rod, a second spring is arranged in the square groove, and both ends of the second spring are respectively fixedly connected to the square groove wall and the end of the positioning square rod.

[0013] In this technical solution, vertical guidance is achieved through the square rod and the square groove, and the second spring is used for elastic connection.

[0014] Preferably, the linear moving mechanism includes a strip shell, a screw and a nut; the strip shell is fixedly connected to the outer wall of the outer frame, the screw is rotatably installed in the strip shell, the nut is threadedly connected to the screw, and the valve body assembly is fixed to the nut; the connecting rod is fixedly connected to the nut, and the connecting rod is slidably connected to the upper guide groove opened on the strip shell.

[0015] In this technical solution, the linear moving mechanism is used to drive the scraper to move in the bucket to scrape off the materials.

[0016] Preferably, the inflation mechanism includes a cylinder, a second one-way valve, a fourth spring, a piston, a third one-way valve and a straight tube; the cylinder is fixedly connected to the outer wall of one end of the strip shell, the piston is cooperatively connected to the cylinder, the inner wall of the cylinder and one side of the piston form an air cavity, a fourth spring is arranged in the air cavity, two ends of the fourth spring are respectively in contact with the inner wall of the cylinder and the piston, the piston is fixedly connected to the third one-way valve, one port of the third one-way valve is located in the air cavity, the other end of the third one-way valve is fixedly connected to a straight tube, the straight tube passes through a through hole opened at one end of the strip shell, and the straight tube is aligned with the first end tube away from one port of the first one-way valve, a second one-way valve is also fixedly connected to the cylinder, and two ends of the second one-way valve are respectively located outside the cylinder or in the air cavity.

[0017] In the technical solution, the inflation mechanism is squeezed by approaching to inflate through the inflation mechanism.

[0018] Preferably, the deflation mechanism comprises a tamping rod; the tamping rod is fixedly connected to the inner end wall of the strip shell, and the tamping rod is aligned with a port of the second end tube away from the tee tube.

[0019] In the technical solution, the tamping rod is used to tamp through the air by approaching the air release mechanism to achieve air release.

[0020] Preferably, the inner bucket includes a bucket body, a connecting column, a first spring, a bottom plate, an axle body, a cam and a mounting frame; the bucket body is arranged in an outer frame, the bottom plate is located below the outer frame, and at least two vertical connecting columns are fixedly connected between the bottom plate and the bottom surface of the bucket body, the connecting columns are gap-fittedly connected with guide holes opened on the bottom surface of the outer frame, a first spring is sleeved on the connecting column, the bottom plate is elastically connected to the outer frame through the first spring, a mounting frame is rotatably installed on the axle body, and the mounting frame is fixedly connected to the bottom of the outer frame, a cam is fixedly sleeved on the axle body, and the cam is in contact with the bottom surface of the bottom plate.

[0021] In this technical solution, the inner bucket is used to hold materials through the bucket body, and after the inner bucket is unloaded, the scraper scrapes the materials off, and the materials are conveniently dropped through vibration.

[0022] Preferably, the driving assembly includes a fixed shell, a motor, a rotating shaft, a first bevel gear, a second bevel gear, a third bevel gear, an inner frame, a connecting shaft, and a fourth bevel gear; the fixed shell is fixedly connected to the outer frame wall, the motor is fixedly installed to the top of the fixed shell, the output shaft end of the motor is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the fixed shell, the bottom end of the rotating shaft is fixedly connected to the second bevel gear, the second bevel gear is meshingly connected to the fourth bevel gear, the fourth bevel gear is fixedly sleeved with one end of the shaft body, the part of the rotating shaft located in the fixed shell is fixedly sleeved with the first bevel gear, the first bevel gear is meshingly connected to the third bevel gear, the middle part of the third bevel gear is fixedly connected to the connecting shaft, one end of the connecting shaft is fixedly connected to one end of the screw, an inner frame is fixedly connected to the fixed shell, and the connecting shaft is rotatably connected to the inner frame.

[0023] In this technical solution, the driving assembly is used to drive the linear moving mechanism and the inner bucket.

[0024] Preferably, wheels are installed at the bottom of the base, a hinge shaft is fixedly connected below the opening of the outer frame, and the hinge shaft is rotatably connected to the top of the base; two handles are fixedly installed on the side of the outer frame away from the opening, and a pad is fixedly connected to the bottom of the side of the outer frame away from the opening.

[0025] In this technical solution, the wheels are used to achieve overall mobility, and the hinged shaft is used to achieve the flipping of the outer frame, which facilitates the dumping of materials.

[0026] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0027] The positive and progressive effects of the present invention are:

[0028] The construction wheelbarrow for convenient unloading proposed above has a scraper and a linear moving mechanism. After the material is dumped, the scraper is driven to move by the linear moving mechanism, so that the material adhered to the inner bucket can be scraped off, which plays a role of facilitating unloading, and there is no need to manually scrape the material off; further, the outer edge strip on the scraper that is used for direct contact with the inner bucket can be expanded or contracted by inflation and deflation, and the inflation mechanism, the deflation mechanism and the deflation mechanism are designed to be close to the opening of the inner bucket for unloading. After unloading, the scraper is close to the deflation mechanism to realize automatic deflation of the outer edge strip and contraction, and the scraper is reset and moved to the inner bucket. When moving away from the opening, the outer edge strip does not fit with the inner bucket to avoid friction and wear caused by the above-mentioned movement. After the scraper is reset, the scraper approaches the inflation mechanism to realize automatic inflation of the outer edge strip for expansion. The outer edge strip presses the inner wall of the inner bucket. When the scraper is subsequently driven to scrape off the adhered material, the scraping effect is guaranteed by the tight fit. Furthermore, an inner bucket that can self-vibrate to discharge materials is provided. During the above-mentioned scraping process, the inner bucket can be driven to self-vibrate to facilitate the falling of the scraped materials. Finally, a drive assembly is provided, and the linear moving mechanism and the inner bucket are both connected to the drive assembly, so that only a single drive is required for the drives of both. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0031] Figure 3 For the present invention Figure 1 Schematic diagram of the structure with the A part in the middle enlarged.

[0032] Figure 4 It is a schematic structural diagram of the scraper of the present invention.

[0033] Figure 5 It is a schematic diagram of the structure inside and on both sides of the linear motion mechanism of the present invention.

[0034] Figure 6 For the present invention Figure 5 Schematic diagram of the structure with the B part enlarged.

[0035] Figure 7 It is a structural schematic diagram of the inner bucket of the present invention.

[0036] Description of Reference Numerals

[0037] 1. Base; 101. Wheel;

[0038] 2. Outer frame;

[0039] 3. Articulated shaft;

[0040] 4. Inner bucket; 401. bucket body; 402. connecting column; 403. first spring; 404. bottom plate; 405. shaft body; 406. cam; 407. mounting frame;

[0041] 5. Grip;

[0042] 6. Scraper; 601. Plate body; 602. Outer edge strip; 603. Connecting rod; 604. Positioning square rod; 605. Square groove; 606. Second spring; 607. Connecting hose; 608. Valve body assembly; 6081. Three-way pipe; 6082. First one-way valve; 6083. First end pipe; 6084. Rubber gasket; 6085. Second end pipe; 6086. Exhaust hole; 6087. Sealing plate; 6088. Third spring; 6089. Fixed seat;

[0043] 7. Linear moving mechanism; 701. Strip shell; 7011. Upper guide groove; 7012. Through hole; 702. Screw rod; 703. Nut;

[0044] 8. Inflating mechanism; 801. Cylinder; 802. Second one-way valve; 803. Fourth spring; 804. Piston; 805. Third one-way valve; 806. Straight pipe;

[0045] 9. Driving assembly; 901. Fixed housing; 902. Motor; 903. Rotating shaft; 904. First bevel gear; 905. Second bevel gear; 906. Third bevel gear; 907. Inner frame; 908. Connecting shaft; 909. Fourth bevel gear;

[0046] 10. Tamping rod. DETAILED DESCRIPTION

[0047] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0048] like Figure 1-7As shown, a construction wheelbarrow for convenient unloading includes a movable base 1; it also includes: an outer frame 2, the outer frame 2 is flipped and installed on the top of the base 1, and an inner bucket 4 for containing construction materials and capable of self-vibration unloading is arranged inside the outer frame 2; a scraper 6, the scraper 6 is arranged inside the inner bucket 4, and the scraper 6 is provided with an outer edge strip 602 that can expand or contract by inflation or deflation; the scraper 6 is connected to a linear motion mechanism 7 installed on the front outer wall of the outer frame 2, and an inflation mechanism 8 and an deflation mechanism are respectively arranged at both ends of the linear motion mechanism 7, and the deflation mechanism is close to the opening of the inner bucket 4 for unloading; a drive assembly 9, the drive assembly 9 is connected to the linear motion mechanism 7, and the drive assembly 9 is also connected to the inner bucket 4.

[0049] like Figure 1 As shown, a wheel 101 is installed at the bottom of the base 1, a hinge shaft 3 is fixedly connected below the opening of the outer frame 2, and the hinge shaft 3 is rotatably connected to the top of the base 1; two handles 5 are fixedly installed on the side of the outer frame 2 away from the opening, and a pad is fixedly connected to the bottom of the side of the outer frame 2 away from the opening.

[0050] The wheels 101 are used for overall movement to achieve self-movement; the hinge shaft 3 enables the outer frame 2 to be flipped over the base 1, and the handle 5 is lifted up to tilt the outer frame 2 and the inner bucket 4 therein together to pour out the material through the opening, and the handle 5 is lowered, and the pad is in contact with the top surface of the base 1, so that the outer frame 2 and the inner bucket 4 therein are level. A door for closing and opening can be set at the opening to close the opening.

[0051] Furthermore, a power supply and a controller may be provided at the bottom of the base 1 for power supply and electrical control.

[0052] like Figure 1-3As shown, the driving assembly 9 includes a fixed shell 901, a motor 902, a rotating shaft 903, a first bevel gear 904, a second bevel gear 905, a third bevel gear 906, an inner frame 907, a connecting shaft 908, and a fourth bevel gear 909; the fixed shell 901 is fixedly connected to the wall of the outer frame 2, the motor 902 is fixedly installed to the top of the fixed shell 901, the output shaft end of the motor 902 is fixedly connected to the rotating shaft 903, and the rotating shaft 903 is rotatably connected to the fixed shell 901, the bottom end of the rotating shaft 903 is fixedly connected to the second bevel gear 905, and the second The bevel gear 905 is meshingly connected with a fourth bevel gear 909, and the fourth bevel gear 909 is fixedly sleeved with one end of the shaft 405. The part of the rotating shaft 903 located in the fixed shell 901 is fixedly sleeved with the first bevel gear 904, and the first bevel gear 904 is meshingly connected with the third bevel gear 906. A connecting shaft 908 is fixedly connected to the middle part of the third bevel gear 906, and one end of the connecting shaft 908 is fixedly connected to one end of the screw 702. An inner frame 907 is fixedly connected to the fixed shell 901, and the connecting shaft 908 is rotatably connected to the inner frame 907.

[0053] The driving assembly 9 is used for the common driving of the linear moving mechanism 7 and the self-vibration of the inner bucket 4. The operation of the driving assembly 9 is as follows: the motor 902 drives the rotating shaft 903 to rotate, so that the first bevel gear 904 and the second bevel gear 905 rotate together, and the meshing transmission of the first bevel gear 904 and the third bevel gear 906 can drive the connecting shaft 908 to rotate, and the connecting shaft 908 is used to drive the screw 702 in the linear moving mechanism 7 to rotate; and the meshing transmission of the second bevel gear 905 and the fourth bevel gear 909 can drive the shaft body 405 of the inner bucket 4 to rotate.

[0054] Furthermore, the motor 902 is a servo motor 902 .

[0055] like Figure 1 and Figure 5 As shown, the linear moving mechanism 7 includes a strip shell 701, a screw rod 702 and a nut 703; the strip shell 701 is fixedly connected to the outer wall of the outer frame 2, the screw rod 702 is rotatably installed in the strip shell 701, the nut 703 is threadedly connected to the screw rod 702, and the valve body assembly 608 is fixed to the nut 703; the connecting rod 603 is fixedly connected to the nut 703, and the connecting rod 603 is slidably connected to the upper guide groove 7011 opened on the strip shell 701.

[0056] The operation of the linear motion mechanism 7 is as follows: when the connecting shaft 908 rotates, the screw rod 702 is driven to rotate, and the screw rod 702 and the nut 703 are threaded, and the sliding guide between the connecting rod 603 and the upper guide groove 7011 is cooperated to realize the linear drive of the scraper 6 and move it in the bucket body 401.

[0057] like Figure 7 As shown, the inner bucket 4 includes a bucket body 401, a connecting column 402, a first spring 403, a bottom plate 404, a shaft body 405, a cam 406 and a mounting frame 407; the bucket body 401 is arranged in the outer frame 2, the bottom plate 404 is located below the outer frame 2, and at least two vertical connecting columns 402 are fixedly connected between the bottom plate 404 and the bottom surface of the bucket body 401, the connecting columns 402 are gap-matchedly connected with the guide holes opened on the bottom surface of the outer frame 2, the connecting columns 402 are sleeved with the first spring 403, the bottom plate 404 is elastically connected to the outer frame 2 through the first spring 403, the mounting frame 407 is rotatably installed on the shaft body 405, and the mounting frame 407 is fixedly connected to the bottom of the outer frame 2, the cam 406 is fixedly sleeved on the shaft body 405, and the cam 406 is in contact with the bottom surface of the bottom plate 404.

[0058] The inner bucket 4 operates as follows: when the shaft 405 rotates, the cam 406 thereon rotates along with it, and the bottom plate 404 is squeezed by the cam 406. Combined with the elastic force of the spring and the vertical guidance provided by the connecting column 402 and the guide hole, the bucket body 401 is able to shake back and forth up and down.

[0059] like Figure 5 As shown, the inflation mechanism 8 includes a cylinder 801, a second one-way valve 802, a fourth spring 803, a piston 804, a third one-way valve 805 and a straight tube 806; the cylinder 801 is fixedly connected to the outer wall of one end of the strip shell 701, the piston 804 is connected to the cylinder 801 in cooperation, the inner wall of the cylinder 801 and one side of the piston 804 form an air cavity, the fourth spring 803 is arranged in the air cavity, and the two ends of the fourth spring 803 are respectively in contact with the inner wall of the cylinder 801 and the piston 804, The piston 804 is fixedly connected to a third one-way valve 805, one end of which is located in the air cavity, and the other end of the third one-way valve 805 is fixedly connected to a straight tube 806, which passes through a through hole 7012 opened at one end of the strip shell 701, and the straight tube 806 is aligned with a port of the first end tube 6083 away from the first one-way valve 6082. A second one-way valve 802 is also fixedly connected to the cylinder 801, and both ends of the second one-way valve 802 are respectively located outside the cylinder 801 or in the air cavity.

[0060] The inflation mechanism 8 is used for inflation. During the inflation process, the first end tube 6083 is driven linearly, and approaches the inflation mechanism 8. The first end tube 6083 squeezes the end of the straight tube 806, so that the straight tube 806 and the piston 804 move together to squeeze the gas in the air cavity and compress the fourth spring 803 at the same time. After the air cavity is squeezed, the air passes through the third one-way valve 805 and the straight tube 806 and is discharged to the outside for inflation in the first end tube 6083. When the first end tube 6083 is driven away from the end of the straight tube 806, the elastic force of the fourth spring 803 drives the piston 804 to reset, so that the air cavity is restored, and external air enters through the second one-way valve 802, so that the air cavity compensates for the air required for the next inflation.

[0061] The deflation mechanism includes a tamping rod 10 ; the tamping rod 10 is fixedly connected to the inner end wall of the strip shell 701 , and the tamping rod 10 is aligned with an end of the second end tube 6085 away from the three-way tube 6081 .

[0062] like Figure 1 as well as Figure 4-6 As shown, the scraper 6 includes a plate body 601, a connecting rod 603 and a valve body assembly 608; the outer edge strip 602 is fixedly installed to the edge of the plate body 601, the top of the plate body 601 is elastically connected to one end of the connecting rod 603, and a connecting hose 607 is fixedly laid along the length direction in the connecting rod 603, one end of the connecting hose 607 extends into the plate body 601, and the connecting hose 607 is connected to the inner cavity of the outer edge strip 602, and the other end of the connecting hose 607 The valve body assembly 608 includes a three-way pipe 6081, a first one-way valve 6082, a first one-way valve 6083, and a second end pipe 6085; one end of the three-way pipe 6081 is fixedly connected to the end of the connecting hose 607, and the other two ends of the three-way pipe 6081 are respectively fixedly installed with the first one-way valve 6082 and the second end pipe 6085; the first one-way valve 6082 is away from the one end of the three-way pipe 6081. The first end tube 6083 is fixedly connected to the end thereof, and a circular hole with a hole diameter larger than the inner diameter of the first end tube 6083 is arranged at one end of the first end tube 6083 away from the first one-way valve 6082, and a rubber gasket 6084 is arranged in the circular hole; an exhaust hole 6086 with a hole diameter smaller than the inner diameter of the second end tube 6085 is arranged at one end of the second end tube 6085 away from the tee tube 6081, and a sealing disk 6087 located in the second end tube 6085 is covered on the exhaust hole 6086. A fixing seat 6089 is fixedly connected to the inner wall of the second end tube 6085, and the sealing disk 6087 is elastically connected to the fixing seat 6089 via a third spring 6088; the connecting rod 603 is fixedly connected to a vertical positioning square rod 604, and a square groove 605 which matches the clearance of the square rod is opened on the top of the plate body 601, and a second spring 606 is arranged in the square groove 605, and the two ends of the second spring 606 are respectively fixedly connected to the wall of the square groove 605 and the end of the positioning square rod 604.

[0063] The plate body 601 approaches the inflation mechanism 8, and the straight tube 806 is inserted into the first end tube 6083. The straight tube 806 fits with the rubber gasket 6084 and continues to move closer to the inflation mechanism 8 to squeeze the inflation mechanism 8. The inflation mechanism 8 fills gas into the first end tube 6083, and the gas enters the three-way tube 6081 through the first one-way valve 6082, and one end of the three-way tube 6081 is blocked by the second end tube 6085 and the sealing disk 6087, so that the gas can only enter the connecting hose 607 to inflate the outer edge strip 602 for expansion.

[0064] When the plate body 601 approaches the deflation mechanism, the tamping rod 10 is inserted into the exhaust hole 6086, pushing away the sealing disk 6087 on the exhaust hole 6086, canceling the blockage of the exhaust hole 6086, compressing the third spring 6088, and discharging the air in the outer edge strip 602 through the connecting hose 607, the three-way pipe 6081 and the second end pipe 6085, and the outer edge strip 602 contracts; and after the plate body 601 moves away from the deflation mechanism, the elastic force of the third spring 6088 drives the sealing disk 6087 to re-seal the exhaust hole 6086.

[0065] By providing the square rod, the square groove 605 and the second spring 606 , the plate body 601 can be elastically connected with the connecting rod 603 in the vertical direction, so as to adapt to the vertical shaking of the bucket body 401 .

[0066] The outer edge strip 602 may be made of rubber material and has an inner cavity, which can be expanded or contracted by inflating or deflating air.

[0067] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A construction trolley for convenient unloading, comprising a movable base (1); characterized in that: Also includes: An outer frame (2), the outer frame (2) being flipped and mounted on the top of the base (1), and an inner bucket (4) for containing building materials and capable of self-vibrating and unloading materials being arranged inside the outer frame (2); A scraper (6), the scraper (6) being arranged inside the inner bucket (4), and the scraper (6) being provided with an outer edge strip (602) that can be expanded or contracted by inflation or deflation; the scraper (6) being connected to a linear motion mechanism (7) mounted on the front outer wall of the outer frame (2), and an inflation mechanism (8) and an deflation mechanism being respectively arranged at both ends of the linear motion mechanism (7), and the deflation mechanism being close to an opening of the inner bucket (4) for unloading materials; A driving assembly (9) is connected to the linear moving mechanism (7), and the driving assembly (9) is also connected to the inner bucket (4).

2. The construction wheelbarrow for convenient unloading as claimed in claim 1, characterized in that: The scraper (6) comprises a plate body (601), a connecting rod (603) and a valve body assembly (608); the outer edge strip (602) is fixedly installed on the edge of the plate body (601), the top of the plate body (601) is elastically connected to one end of the connecting rod (603), and a connecting hose (607) is fixedly laid along the length direction inside the connecting rod (603), one end of the connecting hose (607) extends into the plate body (601), and the connecting hose (607) is connected to the inner cavity of the outer edge strip (602), and the other end of the connecting hose (607) is connected to the valve body assembly (608).

3. The construction wheelbarrow for convenient unloading as claimed in claim 2, characterized in that: The valve body assembly (608) comprises a three-way pipe (6081), a first one-way valve (6082), a first one-way valve (6082), a first end pipe (6083) and a second end pipe (6085); one end of the three-way pipe (6081) is fixedly connected to the end of the connecting hose (607), and the other two ends of the three-way pipe (6081) are respectively fixedly installed with the first one-way valve (6082) and the second end pipe (6085); one end of the first one-way valve (6082) away from the three-way pipe (6081) is fixedly connected to the first end pipe (6083), and the first end pipe (6083) away from the first one-way valve (60 A circular hole with a larger aperture than the inner diameter of the first end tube (6083) is provided at one end of the second end tube (6085), and a rubber gasket (6084) is provided in the circular hole; an exhaust hole (6086) with a smaller aperture than the inner diameter of the second end tube (6085) is provided at one end of the second end tube (6085) away from the tee tube (6081), and the exhaust hole (6086) is covered with a sealing disk (6087) located in the second end tube (6085); a fixing seat (6089) is fixedly connected to the inner wall of the second end tube (6085), and the sealing disk (6087) and the fixing seat (6089) are elastically connected via a third spring (6088).

4. The construction wheelbarrow for convenient unloading as claimed in claim 2, characterized in that: The connecting rod (603) is fixedly connected to a vertical positioning square rod (604); a square groove (605) is provided on the top of the plate body (601) to fit the square rod in a clearance; a second spring (606) is arranged in the square groove (605); two ends of the second spring (606) are respectively fixedly connected to the wall of the square groove (605) and the end of the positioning square rod (604).

5. The construction wheelbarrow for convenient unloading as claimed in claim 3, characterized in that: The linear motion mechanism (7) comprises a strip shell (701), a screw rod (702) and a nut (703); the strip shell (701) is fixedly connected to the outer wall of the outer frame (2); the screw rod (702) is rotatably installed in the strip shell (701); the nut (703) is threadedly connected to the screw rod (702); and the valve body assembly (608) is fixed to the nut (703); the connecting rod (603) is fixedly connected to the nut (703), and the connecting rod (603) is slidably connected to an upper guide groove (7011) provided on the strip shell (701).

6. The construction wheelbarrow for convenient unloading as claimed in claim 5, characterized in that: The inflation mechanism (8) comprises a cylinder (801), a second one-way valve (802), a fourth spring (803), a piston (804), a third one-way valve (805) and a straight tube (806); the cylinder (801) is fixedly connected to the outer wall of one end of the strip shell (701); the piston (804) is connected to the cylinder (801); the inner wall of the cylinder (801) and one side of the piston (804) form an air cavity; a fourth spring (803) is arranged in the air cavity; two ends of the fourth spring (803) are in contact with the inner wall of the cylinder (801) and the piston (804) respectively; The piston (804) is fixedly connected to a third one-way valve (805), one end of which is located in the air cavity, and the other end of the third one-way valve (805) is fixedly connected to a straight tube (806), which passes through a through hole (7012) provided at one end of the strip shell (701), and the straight tube (806) is aligned with a port of the first end tube (6083) away from the first one-way valve (6082). The cylinder (801) is also fixedly connected to a second one-way valve (802), and two ends of the second one-way valve (802) are respectively located outside the cylinder (801) or in the air cavity.

7. The construction wheelbarrow for convenient unloading as claimed in claim 5, characterized in that: The deflation mechanism comprises a tamping rod (10); the tamping rod (10) is fixedly connected to the inner end wall of the strip shell (701), and the tamping rod (10) is aligned with an end of the second end tube (6085) away from the three-way tube (6081).

8. The construction wheelbarrow for convenient unloading as claimed in claim 1, characterized in that: The inner bucket (4) comprises a bucket body (401), a connecting column (402), a first spring (403), a bottom plate (404), an axle body (405), a cam (406) and a mounting frame (407); the bucket body (401) is arranged inside the outer frame (2), the bottom plate (404) is located below the outer frame (2), and at least two vertical connecting columns (402) are fixedly connected between the bottom plate (404) and the bottom surface of the bucket body (401), and the connecting columns (402) are connected to the openings. The guide hole on the bottom surface of the outer frame (2) is connected with a clearance fit, the connecting column (402) is sleeved with a first spring (403), the bottom plate (404) is elastically connected to the outer frame (2) through the first spring (403), the shaft (405) is rotatably mounted with a mounting frame (407), and the mounting frame (407) is fixedly connected to the bottom of the outer frame (2), the shaft (405) is fixedly sleeved with a cam (406), and the cam (406) is in contact with the bottom surface of the bottom plate (404).

9. The construction wheelbarrow for convenient unloading as claimed in claim 8, characterized in that: The driving assembly (9) comprises a fixed shell (901), a motor (902), a rotating shaft (903), a first bevel gear (904), a second bevel gear (905), a third bevel gear (906), an inner frame (907), a connecting shaft (908), and a fourth bevel gear (909); the fixed shell (901) is fixedly connected to the wall of the outer frame (2); the motor (902) is fixedly mounted to the top of the fixed shell (901); the output shaft end of the motor (902) is fixedly connected to the rotating shaft (903), and the rotating shaft (903) is rotatably connected to the fixed shell (901); the bottom end of the rotating shaft (903) is fixedly connected to the second bevel gear (905); The second bevel gear (905) is meshedly connected with a fourth bevel gear (909), and the fourth bevel gear (909) is fixedly sleeved with one end of the shaft body (405). The part of the rotating shaft (903) located in the fixed shell (901) is fixedly sleeved with the first bevel gear (904), and the first bevel gear (904) is meshedly connected with the third bevel gear (906). A connecting shaft (908) is fixedly connected to the middle part of the third bevel gear (906), and one end of the connecting shaft (908) is fixedly connected to one end of the screw rod (702). An inner frame (907) is fixedly connected in the fixed shell (901), and the connecting shaft (908) is rotationally connected to the inner frame (907).

10. The construction wheelbarrow for convenient unloading as claimed in claim 1, characterized in that: A wheel (101) is installed at the bottom of the base (1); a hinge shaft (3) is fixedly connected below the opening of the outer frame (2); the hinge shaft (3) is rotatably connected to the top of the base (1); two handles (5) are fixedly installed on the side of the outer frame (2) away from the opening, and a cushion block is fixedly connected to the bottom of the side of the outer frame (2) away from the opening.

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