Discharging structure of concrete mixing truck

Abstract

The utility model discloses a concrete mixing truck discharging structure which comprises a tank body welding piece, a fixing seat is arranged in the middle of the inner side, close to an opening, of the tank body welding piece, the annular side of the fixing seat is fixedly connected with the inner wall of the tank body welding piece through tank body blades, a smooth rod is fixedly installed at one end of the fixing seat, and a sliding sleeve is sleeved on the smooth rod. The outer side of the sliding sleeve is fixedly connected with a tank opening sealing plate. According to the tank opening sealing device, the hand wheel is rotated to drive the nut to rotate, the nut is in threaded connection with the lead screw, the hand wheel can drive the annular plate to move by rotating the pressing plate, the annular plate drives the tank opening sealing plate and the sliding sleeve to move on the smooth rod through the annular frame, and the tank opening sealing plate is made to be close to or away from a tank body welding piece; by means of the discharging structure of the transport vehicle, the screw rod can be prevented from being clamped by concrete, the tank opening sealing plate can smoothly move on the smooth rod, and opening and closing of the opening of the tank welding part can be controlled again.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete mixer trucks, specifically to a discharge structure for a concrete mixer truck. Background Technology

[0002] Concrete mixer trucks are special trucks used to transport concrete for construction. Due to their shape, they are often called snail trucks. There are two types of concrete mixer trucks on the market: open and sealed. When discharging concrete in a sealed concrete mixer truck, a manual sealing discharge mechanism is required.

[0003] The existing manual sealing discharge mechanism of concrete mixer trucks requires opening the tank opening seal to discharge concrete, leaving the screw rod exposed between the tank opening flange and the seal. This causes concrete to get stuck in the screw rod teeth, requiring immediate and thorough cleaning with water after discharge. Otherwise, the screw rod is difficult to rotate, making it impossible to open and close the tank opening seal again, which is inconvenient. Therefore, we propose a new discharge structure for concrete mixer trucks to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a discharge structure for a concrete mixer truck to solve the problems currently existing in the market as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a discharge structure for a concrete mixer truck, comprising a welded tank body, wherein a fixing seat is provided at the center of the inner side of the welded tank body near the opening, and the circumferential side of the fixing seat is fixedly connected to the inner wall of the welded tank body via tank body blades, wherein...

[0006] A smooth rod is fixedly installed at one end of the fixed base, a sliding sleeve is fitted on the smooth rod, a tank opening sealing plate is fixedly connected to the outside of the sliding sleeve, a fixed plate is fixedly connected to the outer wall of the tank body welded part near the opening, a sealing ring is installed on the side of the fixed plate corresponding to the tank opening sealing plate, a lead screw is integrally fixedly connected to the end of the smooth rod away from the fixed base, and a limit plate is fixedly installed at the end of the lead screw away from the smooth rod.

[0007] A nut is threaded onto the lead screw, and a handwheel is fixedly connected to the outside of the nut. An annular frame is fixedly connected to the side of the tank opening sealing plate away from the welded parts of the tank body. An annular plate is fixedly connected to the end of the annular frame away from the tank opening sealing plate. Rotary pressure plates are equidistantly fitted on the annular plate. The rotating pressure plate and the handwheel are fixedly connected to the sliding sleeve and sealed to the smooth rod through a sealing structure.

[0008] Preferably, the outer surface of the smooth rod is provided with an electroplated layer.

[0009] Preferably, the outer diameter of the can opening sealing plate is larger than the inner diameter of the opening of the can body welded part, and the outer diameter of the can opening sealing plate is larger than the outer diameter of the sealing ring.

[0010] Preferably, the handwheel is rotatably connected to the annular plate via a rotating pressure plate, and the rotating pressure plate is U-shaped.

[0011] Preferably, the sealing structure includes a dust ring mounting groove, and the inner walls at both ends of the sliding sleeve are symmetrically provided with dust ring mounting grooves, and a dust ring is installed in the dust ring mounting groove.

[0012] Preferably, the dustproof ring mounting groove and the cross-section of the dustproof ring are L-shaped, and the external dimensions of the dustproof ring match the internal dimensions of the dustproof ring mounting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes a handwheel to rotate a nut, which is threaded onto a lead screw. The handwheel, through a rotating pressure plate, moves an annular plate. This annular plate, via a ring frame, moves a tank opening seal plate and a sliding sleeve along a smooth rod. This allows the tank opening seal plate to move closer to or further away from the welded parts of the tank, thereby controlling the opening and closing of the welded parts. The material discharge structure of this transport vehicle prevents concrete from jamming the lead screw, allowing the tank opening seal plate to move smoothly along the smooth rod, thus enabling further control of the opening and closing of the welded parts.

[0015] This invention provides an electroplating layer, preferably a chromium plating layer, on the outer surface of the smooth rod. This makes the surface of the smooth rod smooth and wear-resistant, allowing the sliding sleeve to slide on the smooth rod and automatically clean the concrete on the smooth rod, preventing concrete from adhering to the smooth rod. This also allows the opening of the tank body welded parts to be opened and closed through the tank opening sealing plate.

[0016] In this invention, after the dustproof ring is installed inside the dustproof ring mounting groove, the sliding sleeve is fitted onto the smooth rod. The L-shaped dustproof ring mounting groove and the dustproof ring prevent the dustproof ring from falling off. The dustproof ring also prevents concrete from entering the gap between the sliding sleeve and the smooth rod, allowing the sliding sleeve to slide on the smooth rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the can opening sealing plate structure of this utility model;

[0021] Figure 5 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0022] Figure 6 This utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0023] In the diagram: 1. Tank body welded component; 2. Fixed seat; 3. Tank body blade; 4. Smooth rod; 5. Sliding sleeve; 6. Tank opening sealing plate; 7. Fixed plate; 8. Sealing ring; 9. Screw rod; 10. Limiting plate; 11. Nut; 12. Handwheel; 13. Ring frame; 14. Ring plate; 15. Rotating pressure plate; 16. Dustproof ring mounting groove; 17. Dustproof ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 6 This utility model provides a technical solution: a discharge structure for a concrete mixer truck, including a tank welded component 1, a fixed seat 2, tank blades 3, a smooth rod 4, a sliding sleeve 5, a tank opening sealing plate 6, a fixed plate 7, a sealing ring 8, a screw rod 9, a limiting plate 10, a nut 11, a handwheel 12, a ring frame 13, a ring plate 14, a rotating pressure plate 15, a dustproof ring mounting groove 16, and a dustproof ring 17. The fixed seat 2 is located on the inner center of the tank welded component 1 near the opening. The circumferential side of the fixed seat 2 is fixedly connected to the inner wall of the tank welded component 1 via the tank blades 3.

[0026] A smooth rod 4 is fixedly installed at one end of the fixed base 2. A sliding sleeve 5 is fitted on the smooth rod 4. A tank opening sealing plate 6 is fixedly connected to the outside of the sliding sleeve 5. A fixing plate 7 is fixedly connected to the outer wall of the tank body welded part 1 near the opening. A sealing ring 8 is installed on the side of the fixing plate 7 corresponding to the tank opening sealing plate 6. A lead screw 9 is integrally fixedly connected to the end of the smooth rod 4 away from the fixed base 2. A limiting plate 10 is fixedly installed at the end of the lead screw 9 away from the smooth rod 4 (the limiting plate 10 is fixedly connected to the end of the lead screw 9 by bolt installation or welding).

[0027] A nut 11 is threaded onto the lead screw 9. A handwheel 12 is fixedly connected to the outside of the nut 11. An annular frame 13 is fixedly connected to the side of the tank opening sealing plate 6 away from the tank body welded part 1. An annular plate 14 is fixedly connected to the end of the annular frame 13 away from the tank opening sealing plate 6. Rotary pressure plates 15 are equidistantly sleeved on the annular side of the annular plate 14. The rotating pressure plate 15 and the handwheel 12 are fixedly connected to the sliding sleeve 5 and sealed to the smooth rod 4 through a sealing structure.

[0028] By rotating the handwheel 12, the nut 11 is rotated. The nut 11 is threadedly connected to the lead screw 9. The handwheel 12 can drive the annular plate 14 to move through the rotating pressure plate 15. The annular plate 14 drives the tank opening sealing plate 6 and the sliding sleeve 5 to move on the smooth rod 4 through the annular frame 13. This allows the tank opening sealing plate 6 to move closer to or further away from the tank welded part 1, thereby controlling the opening and closing of the tank welded part 1. Through this transport vehicle discharge structure, concrete can be prevented from jamming the lead screw 9, allowing the tank opening sealing plate 6 to move smoothly on the smooth rod 4, so that the opening and closing of the tank welded part 1 can be controlled again.

[0029] Please see Figures 1 to 6 The outer surface of the smooth rod 4 is provided with an electroplated layer. The outer diameter of the can opening sealing plate 6 is larger than the inner diameter of the opening of the can body welded part 1, and the outer diameter of the can opening sealing plate 6 is larger than the outer diameter of the sealing ring 8. The handwheel 12 is rotatably connected to the annular plate 14 through the rotating pressure plate 15, and the rotating pressure plate 15 is U-shaped. By providing an electroplated layer on the outer surface of the smooth rod 4, preferably a chromium plating layer, the surface of the smooth rod 4 is made smooth and wear-resistant. When the sliding sleeve 5 slides on the smooth rod 4, it is convenient to automatically clean the concrete on the smooth rod 4 and prevent concrete from adhering to the smooth rod 4. This allows the opening of the can body welded part 1 to be opened and closed through the can opening sealing plate 6. The multiple rotating pressure plates 15 and the annular plate 14 are rotatably connected, reducing the contact area between the rotating pressure plates 15 and the annular plate 14, thereby reducing the friction between the rotating pressure plates 15 and the annular plate 14. The handwheel 12 rotates more easily, saving time and effort and improving work efficiency.

[0030] Please see Figures 1 to 6 The sealing structure includes a dustproof ring mounting groove 16. The inner walls of both ends of the sliding sleeve 5 are symmetrically provided with dustproof ring mounting grooves 16. A dustproof ring 17 is installed in the dustproof ring mounting groove 16. The cross-section of the dustproof ring mounting groove 16 and the dustproof ring 17 is L-shaped, and the external dimensions of the dustproof ring 17 match the internal dimensions of the dustproof ring mounting groove 16. After the dustproof ring 17 is installed inside the dustproof ring mounting groove 16, the sliding sleeve 5 is fitted onto the smooth rod 4. The L-shaped dustproof ring mounting groove 16 and the dustproof ring 17 prevent the dustproof ring 17 from falling off. The dustproof ring 17 prevents concrete from entering the gap between the sliding sleeve 5 and the smooth rod 4, so that the sliding sleeve 5 can slide on the smooth rod 4.

[0031] Working Principle: This concrete mixer truck discharge structure, by rotating the handwheel 12, causes the nut 11 to rotate. The nut 11 is threadedly connected to the lead screw 9, allowing the handwheel 12 to rotate the pressure plate 15, which in turn moves the annular plate 14. The annular plate 14, through the annular frame 13, moves the tank opening sealing plate 6 and the sliding sleeve 5 on the smooth rod 4, causing the tank opening sealing plate 6 to move closer to or further away from the welded part 1 of the tank body. This allows control over the opening and closing of the tank body welded part 1. This discharge structure prevents concrete from jamming the lead screw 9, allowing the tank opening sealing plate 6 to move smoothly on the smooth rod 4, thus enabling further control over the opening and closing of the tank body welded part 1. An electroplating layer, preferably a chromium plating layer, is applied to the outer surface of the smooth rod 4 to make the surface of the smooth rod 4 smooth and wear-resistant. This allows the sliding sleeve 5 to slide on the smooth rod 4, facilitating automatic cleaning of concrete on the smooth rod 4 and preventing concrete from adhering to the smooth rod 4. This allows the opening of the tank welding part 1 to be opened and closed via the tank opening sealing plate 6. After the dustproof ring 17 is installed inside the dustproof ring mounting groove 16, the sliding sleeve 5 is fitted onto the smooth rod 4. The L-shaped dustproof ring mounting groove 16 and the dustproof ring 17 prevent the dustproof ring 17 from falling off. The dustproof ring 17 prevents concrete from entering the gap between the sliding sleeve 5 and the smooth rod 4, allowing the sliding sleeve 5 to slide on the smooth rod 4.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A discharge structure for a concrete mixer truck, comprising a welded tank body (1), characterized in that: A fixing seat (2) is provided on the inner middle part of the tank body welded component (1) near the opening. The circumferential side of the fixing seat (2) is fixedly connected to the inner wall of the tank body welded component (1) through tank body blades (3). A smooth rod (4) is fixedly installed at one end of the fixed seat (2). A sliding sleeve (5) is fitted on the smooth rod (4). A tank opening sealing plate (6) is fixedly connected to the outside of the sliding sleeve (5). A fixing plate (7) is fixedly connected to the outer wall of the tank body welded part (1) near the opening. A sealing ring (8) is installed on the side of the fixing plate (7) corresponding to the tank opening sealing plate (6). A screw rod (9) is integrally fixedly connected to the end of the smooth rod (4) away from the fixed seat (2). A limit plate (10) is fixedly installed at the end of the screw rod (9) away from the smooth rod (4). A nut (11) is threaded onto the lead screw (9), and a handwheel (12) is fixedly connected to the outside of the nut (11). A ring frame (13) is fixedly connected to the side of the tank opening sealing plate (6) away from the tank body welding part (1). A ring plate (14) is fixedly connected to the end of the ring frame (13) away from the tank opening sealing plate (6). Rotating pressure plates (15) are equidistantly sleeved on the ring side of the ring plate (14). The rotating pressure plate (15) is fixedly connected to the handwheel (12) by a sliding sleeve (5) and is sealed to the smooth rod (4) through a sealing structure.

2. The discharge structure of a concrete mixer truck according to claim 1, characterized in that: The outer surface of the smooth rod (4) is provided with an electroplated layer.

3. The discharge structure of a concrete mixer truck according to claim 1, characterized in that: The outer diameter of the can opening sealing plate (6) is greater than the inner diameter of the opening of the can body welded part (1), and the outer diameter of the can opening sealing plate (6) is greater than the outer diameter of the sealing ring (8).

4. The discharge structure of a concrete mixer truck according to claim 1, characterized in that: The handwheel (12) is rotatably connected to the annular plate (14) via a rotating pressure plate (15), and the rotating pressure plate (15) is U-shaped.

5. The discharge structure of a concrete mixer truck according to claim 1, characterized in that: The sealing structure includes a dust ring mounting groove (16), and the inner walls of both ends of the sliding sleeve (5) are symmetrically provided with dust ring mounting grooves (16), and a dust ring (17) is installed in the dust ring mounting groove (16).

6. The discharge structure of a concrete mixer truck according to claim 5, characterized in that: The cross-section of the dustproof ring mounting groove (16) and the dustproof ring (17) is L-shaped, and the external dimensions of the dustproof ring (17) match the internal dimensions of the dustproof ring mounting groove (16).

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