Leakage prevention device and mixer truck

Abstract

The present invention discloses a leak-proof device and a concrete mixer truck. The leak-proof device is used to be installed on a concrete mixer truck's mixing tank assembly. The concrete mixer truck assembly includes a material guide barrel and a feed hopper. A gap is defined between the feed pipe of the feed hopper and the material guide barrel. The leak-proof device includes a support body and a material receiving body. The mounting body is configured to provide a connection between the concrete mixer truck assembly and the support body. The material receiving body is disposed on the support body and is at least partially located directly below the gap. The mounting body and the support body are connected by a hinged connection. The leak-proof device of the present invention can effectively prevent concrete flowing out of the gap between the material guide barrel and the feed pipe from falling onto the road surface, affecting road cleanliness or even hitting people.

Description

Technical Field

[0001] The present invention relates to the technical field of mixer trucks, and in particular to a leakage prevention device and a mixer truck. Background Art

[0002] A concrete mixer truck (referred to as a mixer truck in this disclosure) is a common type of concrete transport equipment, primarily used for transporting concrete to construction sites. During the transportation process, the mixer truck's mixing drum must constantly rotate to ensure the quality of the concrete being transported. Because the guide barrel is fixedly connected to the mixing drum and rotates with it, a gap must be left between the guide barrel and the feed pipe of the feed hopper during design to allow for rotation of the mixing drum. During the actual manufacturing and assembly process, due to assembly and manufacturing errors, the gap between the guide barrel and the feed pipe is typically larger than the designed gap. When transporting concrete, especially when traveling uphill, concrete can easily spill from the gap between the guide barrel and the feed pipe. If this spillage falls onto the road surface, it can affect its cleanliness and potentially hit someone, causing a safety incident. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problems existing in the prior art and provide a leakage prevention device and a mixer truck. The leakage prevention device can solve the problem that concrete overflowing from the gap between the guide barrel and the feed pipe falls onto the road surface, affecting the cleanliness of the road surface and even hitting people.

[0004] To achieve the above-mentioned object, the present invention provides a leakage-proof device, which is used to be installed on a mixing tank assembly of a mixer truck, wherein the mixing tank assembly includes a material guide cylinder and a feed hopper, and the feed hopper includes a feed pipe, one end of the feed pipe extends into the material guide cylinder and a gap is formed between the feed pipe and the material guide cylinder, and the leakage-proof device includes a support body and a material receiving body; the material receiving body is provided on the support body, and the support body is hinged to the mixing tank assembly;

[0005] Among them, when the material receiving body is in the material receiving state, the material receiving body is at least partially located directly below the gap, and one end of the material receiving body extends into the mixing tank; when the material receiving body needs to be cleaned, the support body is rotated so that the material receiving body is rotated to the outside of the mixing tank.

[0006] Optionally, the leakage prevention device further comprises a mounting body, the mounting body being fixed to the outer wall of the feed hopper, the support body being hingedly connected to the mounting body. Optionally, the support body is provided with a first connecting hole, the mounting body is provided with a second connecting hole, and the leakage prevention device comprises a connecting member capable of passing through the first connecting hole and the second connecting hole to lock the mounting body and the support body together.

[0007] Optionally, the material receiving body is detachably arranged on the supporting body.

[0008] Optionally, the leakage prevention device includes a first stud, one end of which is fixedly arranged inside the material connecting body, and the support body is provided with a first threaded hole matching the first bolt.

[0009] Optionally, the support body includes a first section and a second section, one end of the first section is hinged to the mounting body, and the other end is fixedly connected to the second section, and the first section and the second section form an angle.

[0010] Optionally, the second section is an arc-shaped plate protruding toward the ground, and the shape of the material receiving body is adapted to the support body. Optionally, at least one of the second section and the material receiving body extends to both sides of the first section in the first direction.

[0011] Optionally, the second section is provided with a socket matching the cross-sectional shape of the material receiving body, and one end of the material receiving body passes through the socket so that both ends of the material receiving body are respectively located on both sides of the first section in the first direction.

[0012] Optionally, two ends of the second section are respectively located on both sides of the first section in the first direction, and the leakage prevention device includes a reinforcing rib, which is arranged at one end of the second section away from the material receiving body.

[0013] The present invention also provides a mixer truck, which includes the above-mentioned mixing tank assembly and the above-mentioned anti-leakage device.

[0014] With the above technical solution, when the mixer truck is driving, the material receiving body is in the material receiving state, and concrete overflowing from the gap falls on the material receiving body, thereby preventing it from falling outside the mixer truck, thereby solving the problem of concrete falling on the road surface or hitting people. However, since the long-term use of the leak-proof device will cause concrete to accumulate on the material receiving body, when the concrete on the material receiving body needs to be cleaned, the support body is rotated to rotate the material receiving body to the outside of the mixing tank, allowing the operator to clean the concrete on the material receiving body, avoiding the problem of the material receiving body extending into the interior of the mixing tank, which makes it inconvenient to clean the accumulated material on the material receiving body.

[0015] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the leakage prevention device of the present invention;

[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0018] Description of Reference Numerals

[0019] 110-installation body, 120-support body, 121-first section, 122-second section, 130-material receiving body, 140-connecting piece, 150-first stud, 160-pin shaft, 200-material guide barrel, 300-feed hopper, 310-hopper body, 320-feed pipe. DETAILED DESCRIPTION

[0020] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0021] The leak-proof device of the present invention is designed to be installed on the mixing tank assembly of a concrete mixer truck. The mixing tank assembly includes a guide barrel 200 and a feed hopper 300. The feed hopper 300 includes a hopper body 310 and a feed pipe 320 connected to the hopper body 310. The hopper body 310 is used to receive concrete output from the mixing station. The concrete in the hopper body 310 enters the guide barrel 200 through the feed pipe 320 and ultimately enters the mixing tank. One end of the feed pipe 320 extends into the guide barrel 200, forming a gap between the feed pipe 320 and the guide barrel 200. Obviously, both the guide barrel 200 and the feed pipe 320 need to be tilted to ensure that the concrete can flow into the mixing tank.

[0022] Specifically, the leakage prevention device includes a support body 120 and a material receiving body 130. The material receiving body 130 is arranged on the support body 120, and the support body 120 is hinged to the mixing tank assembly. Figure 1 As shown, the material receiving body 130 is at least partially located directly below the gap, and one end of the material receiving body 130 extends into the mixing tank; when the material receiving body 130 needs to be cleaned, the support body 120 is rotated to rotate the material receiving body 130 to the outside of the mixing tank.

[0023] After using the leakage prevention device, when the mixer truck is driving, the material receiving body 130 is in the material receiving state, and concrete overflowing from the gap falls onto the material receiving body 130, thereby ensuring that the concrete does not fall to the outside of the mixer truck, thereby solving the problem of concrete falling onto the road surface or hitting people. However, since the long-term use of the leakage prevention device will cause concrete to accumulate on the material receiving body, when it is necessary to clean the concrete on the material receiving body 130, the support body 120 is rotated so that the material receiving body 130 is rotated to the outside of the mixing tank, allowing the operator to clean the concrete on the material receiving body 130, thereby avoiding the problem of the material receiving body 130 extending into the interior of the mixing tank, which makes it inconvenient to clean the accumulated material on the material receiving body 130.

[0024] Furthermore, the leakage prevention device also includes a mounting body 110, which is fixed to the outer wall of the feed hopper 300, and the support body 120 is hinged to the mounting body 110, so that the support body 120 can be better connected to the mixing tank assembly through the mounting body 110.

[0025] Specifically, if Figure 2 As shown, the support body 120 includes a first section 121 and a second section 122. One end of the first section 121 is connected to the end of the mounting body 110 away from the mixing tank assembly, and the other end is fixedly connected to the second section 122. The first section 121 and the second section 122 form an angle. The material receiving body 130 is detachably arranged on the second section 122 to facilitate replacement of the material receiving body 130. When the support body 120 is rotated to the outside of the mixing tank, the material receiving body 130 can be removed from the support body 120 for better cleaning. Obviously, the second section 122 is used to provide support for the material receiving body 130, so the angle between the material receiving body 130 and the second section 122 is also formed.

[0026] The second section 122 is an arc-shaped plate protruding toward the ground. The shape of the material receiving body 130 is adapted to the second section 122 , thereby preventing concrete falling onto the material receiving body 130 from overflowing from both sides of the material receiving body 130 .

[0027] It should be noted that the present invention does not specifically specify the angle formed between the first section 121 and the second section 122. This is because, in some cases, such as when the amount of concrete overflow is very small, the overflowed concrete does not need to flow back into the mixing tank. In this case, the angle formed between the first section 121 and the second section 122 can be set so that the second section 122 is inclined upward relative to the horizontal plane, that is, the material receiving body 130 is arranged in an inclined upward manner relative to the horizontal plane. In this way, a small amount of overflowed concrete can be directly collected at the angle between the material receiving body 130 and the second section 122. However, in general, given the characteristic that concrete requires continuous mixing, it is desirable that overflowed concrete can flow back into the mixing tank. Therefore, the angle formed between the first section 121 and the second section 122 can also be set so that the second section 122 is inclined downward relative to the horizontal plane, that is, the material receiving body 130 is arranged in an inclined downward manner relative to the horizontal plane. In this way, the overflowed concrete can flow back into the mixing tank through the material receiving body 130, thereby achieving backflow. In the following embodiments, the material receiving body 130 is explained in the form of being arranged downwardly with respect to the horizontal plane. Figure 1 It will be understood that the first direction indicated in the present application represents any inclined direction in which concrete can flow back from the receiving body 130 to the mixing tank, and is not limited to a specific direction.

[0028] In this embodiment, the first section 121 is hingedly connected to the mounting body 110 via a pin. The hinged connection between one end of the first section 121 and the mounting body 110 can also be achieved through other methods. For example, one end of the first section 121 is cylindrical, and the mounting body 110 is provided with a ball bearing, which is disposed within the cylindrical structure at one end of the first section 121, so that the first section 121 and the mounting body 110 form a connection structure similar to a universal joint. In other embodiments, the hinged connection between the first section 121 and the mounting body 110 can also be achieved through a hinge connection, which is similar to the connection between a door and a door frame and will not be further described here.

[0029] refer to Figure 2 The first section 121 is provided with a first connection hole, and the mounting body 110 is provided with a second connection hole. The leak-proof device further includes a connector 140 that can pass through the first and second connection holes to lock the mounting body 110 and the first section 121 together. That is, during the material connection process, the connector 140 is used to lock the mounting body 110 and the first section 121 together, preventing the first section 121 from rotating about the pin 160, thereby preventing the material connection body 130 from swinging. When it is necessary to clean the concrete on the material connection body 130, the connector 140 can be simply disengaged from the first and second connection holes to allow the first section 121 to rotate freely about the pin 160, thereby facilitating the removal and installation of the material connection body 130. In one embodiment, the connector 140 includes a bolt and a nut that cooperates with the bolt. In other embodiments, the connector 140 can also be configured in other forms as long as it can ensure that the mounting body 110 and the support body 120 can be locked together.

[0030] Furthermore, the leakage prevention device also includes a first stud 150 and a first nut. One end of the first stud 150 is fixedly arranged inside the material receiving body 130. A guide hole is provided on the second section 122. The other end of the first stud 150 is passed through the guide hole and forms a threaded fit with the first nut, thereby realizing a detachable connection between the material receiving body 130 and the second section 122. The surface of the material receiving body 130 used to support concrete is flat, which facilitates the flow of concrete on the material receiving body 130 and avoids corrosion of the first stud 150 by concrete. When the material receiving body 130 needs to be removed, it is only necessary to unscrew the first nut. In order to reduce the weight of the leakage prevention device, at least one through hole is provided on at least one of the mounting body 110 and the support body 120.

[0031] Preferably, at least one of the second section 122 and the material receiving body 130 extends to both sides of the first section 121 in the first direction (not shown in the figure), that is, the end of the second section 122 and the material receiving body 130 away from the mixing tank will continue to extend in the direction away from the mixing tank, so that at least one of the second section 122 and the material receiving body 130 extends to both sides of the mounting body 110 in the first direction. When a small amount of concrete is accumulated on the material receiving body 130, it is only necessary to knock the second section 122 or the end of the material receiving body 130 away from the mixing tank, and the vibration of the knocking will be transmitted to the part of the material receiving body 130 where the concrete is solidified, so that the solidified concrete is shaken and falls off, thereby achieving the purpose of cleaning the concrete.

[0032] In one embodiment, the second section 122 of the present invention may be provided with a socket that matches the cross-sectional shape of the material receiving body 130. One end of the material receiving body 130 passes through the socket so that the two ends of the material receiving body 130 are horizontally located on either side of the first section 121. This arrangement has the advantage that accumulated material on the material receiving body 130 can be cleaned to a certain extent by tapping the end of the material receiving body 130 away from the mixing tank.

[0033] In another embodiment, the material receiving body 130 extends only toward the interior of the mixing tank and is located only on the side of the first section 121 closest to the mixing tank. The ends of the second section 122 are located on either side of the first section 121 in the first direction. By striking the end of the second section 122 away from the mixing tank, the solidified concrete can be vibrated and cleaned. Furthermore, to enhance the structural stability of the leak prevention device, the leak prevention device may further include reinforcing ribs located at the end of the second section 122 away from the material receiving body 130.

[0034] It should be understood that the first section 121 and the second section 122 can be manufactured separately and then assembled, or the first section 121 and the second section 122 can be designed as an integrally formed structure.

[0035] Preferably, the material of the material connection body 130 is a flexible member, such as plastic or rubber. Compared with metal materials, the flexible member has a certain flexibility and is more likely to cause the solidified concrete to be shaken off.

[0036] Through the above technical solution, the leakage prevention device of the present invention effectively avoids the problem of concrete overflowing and falling onto the ground, and solves the problem of concrete overflowing and falling into the reflux structure and being inconvenient to clean, thereby completely solving the problem of the normal operation of the mixing tank being affected by the failure to clean up the accumulated material for a long time. At the same time, it can also reduce the accumulation of concrete on the receiving body 130 and can clean the solidified concrete.

[0037] The present invention also provides a mixer truck, comprising the above-mentioned mixing tank assembly and a leak-proof device, so as to avoid the occurrence of overflow problems during the driving of the mixer truck.

[0038] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the technical scope of the present invention, various simple variations of the technical solution of the present invention may be made. To avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple variations and combinations should also be considered as disclosed in the present invention and fall within the scope of protection of the present invention.

Claims

1. A leak-proof device for mounting on a mixing tank assembly of a mixer truck, wherein the mixing tank assembly comprises a material guide barrel (200) and a feed hopper (300), wherein the feed hopper (300) comprises a feed pipe (320), wherein one end of the feed pipe (320) extends into the material guide barrel (200) and a gap is formed between the feed pipe (320) and the material guide barrel (200), and wherein: The leakage prevention device comprises a mounting body (110), a support body (120) and a material receiving body (130); the material receiving body (130) is detachably mounted on the support body (120); the mounting body (110) is fixed to the outer wall of the feed hopper (300); and the support body (120) is hinged to the mounting body (110); The support body (120) comprises a first section (121) and a second section (122), one end of the first section (121) is hinged to the mounting body (110), and the other end is fixedly connected to the second section (122), the first section (121) and the second section (122) form an angle, the second section (122) is used to provide support for the material receiving body (130), and at least one of the second section (122) and the material receiving body (130) extends to both sides of the first section (121) in a first direction; When the material receiving body (130) is in a material receiving state, the material receiving body (130) is at least partially located directly below the gap, and one end of the material receiving body (130) extends into the mixing tank; when the material receiving body (130) needs to be cleaned, the support body (120) is rotated so that the material receiving body (130) is rotated to the outside of the mixing tank.

2. The leakage prevention device according to claim 1, characterized in that: The support body (120) is provided with a first connection hole, the mounting body (110) is provided with a second connection hole, and the leakage prevention device comprises a connection piece (140) capable of passing through the first connection hole and the second connection hole to lock the mounting body (110) and the support body (120) with each other.

3. The leakage prevention device according to claim 1, characterized in that: The anti-leakage device comprises a first stud (150), one end of which is fixedly arranged inside the material receiving body (130), and a first threaded hole matching the first stud (150) is provided on the support body (120).

4. The leakage prevention device according to claim 1, characterized in that: The second section (122) is configured as an arc-shaped plate facing the ground, and the shape of the material receiving body (130) is adapted to the second section (122).

5. The leakage prevention device according to claim 1, characterized in that: The second section (122) is provided with a socket that matches the shape of the cross section of the material connection body (130), and one end of the material connection body (130) passes through the socket so that both ends of the material connection body (130) are respectively located on both sides of the first section (121) in the first direction.

6. The leakage prevention device according to claim 1, characterized in that: The two ends of the second section (122) are respectively located on both sides of the first section (121) in the first direction, and the leakage prevention device includes a reinforcing rib, which is arranged at one end of the second section (122) away from the material receiving body (130).

7. A mixer truck, characterized in that: The invention comprises a stirring tank assembly and the anti-leakage device according to any one of claims 1 to 6, wherein the stirring tank assembly comprises a material guide cylinder (200) and a feed hopper (300), the feed hopper (300) comprises a hopper body (310) and a feed pipe (320) connected to the hopper body (310), one end of the feed pipe (320) extends into the material guide cylinder (200) and a gap is formed between the feed pipe (320) and the material guide cylinder (200); the material receiving body (130) is at least partially located directly below the gap, and one end of the material receiving body (130) extends into the stirring tank.

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