Mixing drum of concrete mixing truck with inner sealing structure

Abstract

The utility model relates to the technical field of concrete mixing trucks, in particular to a concrete mixing truck mixing drum with an inner sealing structure, which comprises a mixing drum body and a material guide drum body, the mixing drum body internally comprises a drum body front end, a concrete feeding and discharging inner cavity and a concrete feeding and guiding drum body opening, and a spiral blade is fixedly mounted in the mixing drum body. A guide barrel is mounted on the inner side of a concrete feeding and guide barrel opening, and an inner sealing blade is connected to the inner side of the guide barrel; the mixing drum of the concrete mixing truck with the inner sealing structure is simple in structure, the filling rate of the front end of the mixing drum is improved, and pollution of concrete to the ground environment in the transportation process is reduced; through forward rotation of the mixing drum, the filling rate of the front portion of the mixing drum is increased, and the situation that concrete is scattered in the transportation process, and consequently ground pollution and harm to passing vehicles and pedestrians are caused are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixer trucks, and particularly relates to a mixing drum of a concrete mixer truck with an inner sealing structure. Background Art

[0002] At present, the mixing drum of domestic concrete mixer trucks is a loading container for transporting concrete, which can perform functions such as loading, mixing, and discharging of ready-mixed concrete; the structure of the existing mixing drum blades is a double spiral ribbon variable pitch structure, and the mixing blades are welded to the cylinder body. The spiral blade surface is smooth and continuous. When the mixing drum rotates, the ready-mixed concrete moves along the direction of the spiral blade. During the transportation process as much as possible, the mixing drum rotates forward, and during the discharging process, the mixing drum rotates backward, and the concrete is discharged outward along the direction of the blade.

[0003] At present, the mixing drum adopts a special slewing bearing sealing device and a feeding hopper sealing structure, which increases the cost by itself, and the connecting parts are easily damaged, and the later maintenance and replacement increase the use cost for users; at the same time, no sealing treatment is done to the mixing drum. During the transportation process of the mixing drum, the concrete is a fluid, and the filling rate at the front end of the cylinder body is insufficient. Under the conditions of loading the same volume, bumpy roads, and large slopes, it is easy to spill materials and pollute the ground environment.

[0004] Therefore, there is an urgent need to design a mixing drum of a concrete mixer truck with an inner sealing structure to solve the problems that the existing mixing drum is not sealed and is easy to spill materials and pollute the ground environment. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a mixing drum of a concrete mixer truck with an inner sealing structure.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a mixing drum of a concrete mixer truck with an inner sealing structure, which includes a mixing drum body and a feeding guide cylinder body. The inside of the mixing drum body includes the front end of the cylinder body, the inner cavity for concrete feeding and discharging, and the concrete feeding guide cylinder body opening. A spiral blade is fixedly installed inside the mixing drum body, a feeding guide cylinder body is installed inside the concrete feeding guide cylinder body opening of the mixing drum body, and an inner sealing blade is connected to the inside of the feeding guide cylinder body.

[0007] Specifically, the spiral blade is a variable pitch blade, and the spiral surface of the spiral blade is continuous and smooth.

[0008] Specifically, the spiral blade is divided into a left spiral blade and a right spiral blade, and the outer edge of the spiral blade is welded to the inner wall of the mixing drum body.

[0009] Specifically, a feeding guide cylinder body is installed at the concrete feeding guide cylinder body opening of the mixing drum body.

[0010] Specifically, the outer wall of the material guiding cylinder is welded to the inner edge of the spiral blade at the opening of the concrete feeding and guiding cylinder body, and the spiral blades form a support frame to support the material guiding cylinder body.

[0011] Specifically, the inner sealing blade is installed at the reverse cone of the material guiding cylinder body. The inner sealing blade is welded to the left spiral blade and the right spiral blade, and a sealed cavity is formed at the front of the mixing cylinder body.

[0012] The utility model has the following beneficial effects:

[0013] The mixing drum structure of the concrete mixer truck with an inner sealing structure designed by the utility model is simple, which improves the filling rate at the front end of the mixing drum and reduces the pollution of the ground environment by concrete during transportation.

[0014] The mixing drum of the concrete mixer truck with an inner sealing structure designed by the utility model increases the filling rate at the front of the mixing drum by the forward rotation of the mixing drum, which prevents the situation of concrete spilling during transportation, causing ground pollution and harm to passing vehicles and pedestrians. Description of the Drawings

[0015] Figure 1 It is a schematic internal structure diagram of the mixing drum of a concrete mixer truck with an inner sealing structure.

[0016] In the figure: 1 - mixing drum body, 1.1 - front end of the drum body, 1.2 - internal cavity for concrete feeding and discharging, 1.3 - opening of the concrete feeding and guiding cylinder body;

[0017] 2 - spiral blade; 3 - material guiding cylinder body; 4 - inner sealing blade. Specific Embodiments

[0018] The following will further clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0019] Embodiment 1.

[0020] As Figure 1 shown, a mixing drum of a concrete mixer truck with an inner sealing structure includes a mixing drum body 1, a spiral blade 2, a material guiding cylinder body 3, and an inner sealing blade 4. The interior of the mixing drum body 1 includes a front end 1.1 of the drum body, an internal cavity 1.2 for concrete feeding and discharging, and an opening 1.3 of the concrete feeding and guiding cylinder body. A spiral blade 2 is fixedly installed inside the mixing drum body 1, a material guiding cylinder body 3 is installed inside the opening 1.3 of the concrete feeding and guiding cylinder body, and an inner sealing blade 4 is connected inside the material guiding cylinder body 3.

[0021] The spiral blade 2 is a variable pitch blade. The spiral surface of the spiral blade 2 is continuous and smooth. The assembly of the spiral blade 2 is divided into a left spiral blade and a right spiral blade. The outer edge of the spiral blade 2 is welded to the inner wall of the mixing drum body 1. The function of the spiral blade 2 is to ensure that when the equipment transports concrete, the concrete can be evenly fed in and out along the cavity formed by the spiral blade 2 and the mixing drum body 1.

[0022] The material guiding drum body 3 is equipped at the concrete feeding and material guiding drum body opening 1.3 of the mixing drum body 1. The outer wall of the material guiding drum body 3 is welded to the inner edge of the spiral blade 2 at the concrete feeding and material guiding drum body opening 1.3. The spiral blade 2 forms a support frame to support the material guiding drum body 3. The function of the material guiding drum body 3 is to ensure that when the equipment loads and transports concrete, the concrete can enter the interior of the mixing drum body 1 through the material guiding drum body 3.

[0023] The inner sealing blade 4 is located at the reverse cone of the material guiding drum body 3. The inner sealing blade 4 welds the left spiral blade and the right spiral blade together, forming a sealed cavity at the front part of the mixing drum. That is, on the premise of ensuring the smooth passage of the channel formed by the spiral blade 2 and the mixing drum body 1, it also ensures the sealing of the front end 1.1 of the drum body. During the transportation of concrete, it increases the filling rate of the concrete in the front part of the mixing drum, plays a sealing role, and prevents the concrete from spilling under adverse road conditions.

[0024] A mixing drum of a concrete mixer truck with an inner sealing structure has a simple structure. During the transportation of concrete, by rotating the mixing drum forward, it increases the filling rate of the front part of the mixing drum, preventing the concrete from spilling during transportation, which may cause ground pollution and harm to passing vehicles and pedestrians.

[0025] The present invention is not limited to the above embodiments. Anyone should know that any structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, shall fall within the protection scope of the present invention.

[0026] The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A mixing drum of a concrete mixer truck with an inner seal structure, characterized in that, It includes a mixing cylinder body and a feeding cylinder body. The interior of the mixing cylinder body includes the front end of the cylinder body, the internal cavity for concrete feeding and discharging, and the concrete feeding guide cylinder body opening. A spiral blade is fixedly installed inside the mixing cylinder body, and a feeding cylinder body is installed inside the concrete feeding guide cylinder body opening. The inner side of the feeding cylinder body is connected to an inner sealing blade.

2. The mixing drum of the concrete mixer truck with an inner seal structure according to claim 1, characterized in that, The spiral blade is a variable pitch blade, and the spiral surface of the spiral blade is continuous and smooth.

3. The mixing drum of the concrete mixer truck with an inner seal structure according to claim 2, characterized in that, The spiral blade is divided into a left spiral blade and a right spiral blade, and the outer edge of the spiral blade is welded to the inner wall of the mixing cylinder body.

4. The mixing drum of the concrete mixer truck with an inner seal structure according to claim 1, characterized in that, A feeding cylinder body is installed at the concrete feeding guide cylinder body opening of the mixing cylinder body.

5. The mixing drum of the concrete mixer truck with an inner seal structure according to claim 4, characterized in that, The outer wall of the feeding cylinder body is welded to the inner edge of the spiral blade at the concrete feeding guide cylinder body opening, and the spiral blades form a support frame to support the feeding cylinder body.

6. The mixing drum of the concrete mixer truck with an inner seal structure according to claim 1, characterized in that, The inner sealing blade is installed at the reverse cone of the feeding cylinder body. The inner sealing blade is welded to the left spiral blade and the right spiral blade, and a sealed cavity is formed at the front part of the mixing cylinder body.

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