Closed mixing tank and concrete mixer

Abstract

The utility model discloses a closed mixing tank and a concrete mixer, the mixing tank comprises a tank body and a tank cover, and a mixing cavity is arranged in the tank body; the barrel cover is arranged on the barrel body in a covering manner, and a plurality of feeding openings communicated with the stirring cavity are formed in the barrel cover; the stirring device further comprises a mounting seat, a butt joint seat, a first bearing and a sealing ring; the mounting seat is arranged on the barrel cover; the butt-joint seat is rotationally connected to the mounting seat through a first bearing, the stirring paddle is connected to the end, close to the barrel body, of the butt-joint seat, and the driving device is connected to the end, back to the barrel body, of the butt-joint seat; the sealing ring is arranged between the mounting seat and the butt joint seat; by means of the structure, concrete mixtures can be fed and stirred in the closed barrel body, dust overflowing is greatly reduced, environment-friendly sustainable development and the body health of workers are facilitated, and very good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, in particular to a closed mixing barrel and a concrete mixer. Background Art

[0002] A concrete mixer is a machine that mixes cement, sand and gravel aggregates and water to make a concrete mixture. It is also an indispensable tool in the field of house construction, bringing great convenience to the construction process. When mixing concrete, it is added to the mixing barrel according to a certain proportion and order of addition, and then the concrete mixture in the mixing barrel is stirred by the stirring device.

[0003] Since a large amount of dust is generated during the feeding and mixing processes of cement, the solution in the existing technology is to open multiple feeding ports on the barrel cover and feed the material through pipes, thereby forming a closed mixing space in the barrel. However, this mixing barrel still cannot solve the problem of sealing between the stirring device and the barrel. Dust still overflows from the gap between the stirring device and the barrel, or causes blockage of the rotation of the stirring paddle. Therefore, there is an urgent need for a closed mixing barrel and concrete mixer to solve the above problems. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the prior art. To this end, the utility model provides a closed mixing drum and a concrete mixer.

[0005] An embodiment of the present invention solves the technical problem by adopting a technical solution: a closed mixing barrel, comprising a barrel body and a barrel cover, wherein a mixing chamber is provided in the barrel body; the barrel cover is arranged on the barrel body and is provided with a plurality of feeding ports communicating with the mixing chamber, and further comprises a mounting seat, a docking seat, a first bearing and a sealing ring;

[0006] The mounting base is installed on the barrel cover;

[0007] The docking seat is rotatably connected to the mounting seat through a first bearing, the stirring paddle is connected to one end of the docking seat close to the barrel body, and the driving device is connected to one end of the docking seat facing away from the barrel body;

[0008] The sealing ring is arranged between the mounting seat and the docking seat.

[0009] As one of the preferred embodiments of the present invention, a first abutting portion is provided on the docking seat, and a second abutting portion is provided on the mounting seat and is arranged opposite to the first abutting portion in the vertical direction. The upper end of the first bearing abuts against the lower end of the first abutting portion, and the lower end of the first bearing abuts against the upper end of the second abutting portion.

[0010] As one of the preferred embodiments of the present invention, a closed mixing barrel also includes a first locking sleeve and a second locking sleeve, the first locking sleeve is arranged on the docking seat and abuts against the upper end of the first abutting portion; the second locking sleeve is arranged on the mounting seat and abuts against the lower end of the second abutting portion, and the first locking sleeve is connected to the second locking sleeve to limit the axial movement between the mounting seat and the docking seat.

[0011] As one of the preferred embodiments of the present invention, a closed mixing barrel further includes a second bearing disposed between the upper end of the first abutting portion and the first locking sleeve, and a third bearing disposed between the lower end of the second abutting portion and the second locking sleeve.

[0012] As one of the preferred embodiments of the present invention, a closed mixing barrel also includes a heat sink and heat sink fins. The barrel body is arranged in the heat sink and a heat sink cavity is constructed between its outer wall and the inner wall of the heat sink. The heat sink fins are arranged on the outer wall of the barrel body and located in the heat sink cavity. The upper end of the heat sink is provided with several water inlets connected to the heat sink cavity, and the lower end is provided with several water outlets connected to the heat sink cavity.

[0013] As one of the preferred embodiments of the present invention, the heat dissipation fins include a plurality of first heat dissipation fins arranged in the horizontal direction and spaced apart in the vertical direction, and a plurality of second heat dissipation fins arranged in the vertical direction and spaced apart in the horizontal direction.

[0014] As one of the preferred embodiments of the present invention, the first heat sink and the second heat sink are inclined downward.

[0015] A concrete mixer comprises the mixing barrel.

[0016] The beneficial effects of the present utility model include: a closed mixing barrel and a concrete mixer, the mixing barrel comprising a barrel body and a barrel cover, a mixing chamber being provided in the barrel body; the barrel cover being provided on the barrel body and being provided with a plurality of feeding ports communicating with the mixing chamber, and further comprising a mounting seat, a docking seat, a first bearing and a sealing ring; the mounting seat being mounted on the barrel cover; the docking seat being rotatably connected to the mounting seat through the first bearing, the stirring paddle being connected to one end of the docking seat close to the barrel body, and the driving device being connected to one end of the docking seat facing away from the barrel body; the sealing ring being mounted between the mounting seat and the docking seat; the above structure can enable the concrete mixture to be fed and mixed in the closed barrel body, greatly reducing the overflow of dust, being beneficial to environmental protection and sustainable development as well as the health of workers, and having very good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1It is a structural schematic diagram of a closed mixing barrel;

[0019] Figure 2 It is a cross-sectional view of a closed mixing barrel;

[0020] Figure 3 for Figure 2 A partial enlarged view of area A in the middle. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0023] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0024] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0025] Reference Figures 1 to 3 A closed mixing barrel includes a barrel body 10 and a barrel cover 20. The barrel body 10 is provided with a mixing chamber 11. The barrel cover 20 is provided on the barrel body 10 and has a plurality of feeding ports 12 connected to the mixing chamber 11. The barrel cover 20 also includes a mounting seat 30, a docking seat 40, a first bearing 51 and a sealing ring 60.

[0026] The mounting base 30 is mounted on the barrel cover 20;

[0027] The docking seat 40 is rotatably connected to the mounting seat 30 via a first bearing 51 , the stirring paddle is connected to one end of the docking seat 40 close to the barrel body 10 , and the driving device is connected to one end of the docking seat 40 facing away from the barrel body 10 ;

[0028] The sealing ring 60 is installed between the mounting seat 30 and the docking seat 40 .

[0029] In the present invention, when in use, a corresponding number of feeding ports 12 are opened on the barrel cover 20 according to the type of concrete substrate (such as cement, sand and gravel and water, etc.), and then connected to the corresponding substrate feeding device through a pipeline, and the substrate feeding device feeds the substrate into the barrel body 10 along the pipeline; the mixing barrel also includes a first locking sleeve 71 and a second locking sleeve 72, the first locking sleeve 71 is sleeved on the docking seat 40 and abuts against the upper end of the first abutting portion 41; the second locking sleeve 72 is sleeved on the mounting seat 30 and abuts against the lower end of the second abutting portion 31, and the first locking sleeve 71 is connected to the second locking sleeve 72; when the mixing mechanism is connected, the second locking sleeve 72 is first sleeved on the mounting seat 30, and then the mounting seat 30 is installed on the barrel cover 20. The connection method is preferably a bolt connection, wherein the mounting seat 30 has a through groove, and then the sealing ring 60 is sleeved on the outer wall of the docking seat 40, and the docking seat 40 is The end of the sealing ring 60 is inserted into the through groove of the mounting seat 30 so that the sealing ring 60 abuts against the inner wall of the through groove, and then the first bearing 51 is installed between the mounting seat 30 and the docking seat 40, and then the first locking sleeve 71 is sleeved on the docking seat 40 and locked together with the second locking sleeve 72, which can limit the axial movement between the mounting seat 30 and the docking seat 40; finally, the stirring paddle is connected to the end of the docking seat 40 close to the barrel body 10, and the driving device is connected to the end of the docking seat 40 facing away from the barrel body 10. The driving device will drive the docking seat 40 to rotate relative to the mounting seat 30, and then drive the stirring paddle to stir in the barrel body 10; the advantage of the utility model is that through the above structure, the concrete mixture can be fed and stirred in the closed barrel body, which greatly reduces the overflow of dust, is beneficial to environmental protection and sustainable development and the health of workers, and has very good practicality.

[0030] In one embodiment, a first abutting portion 41 is provided on the docking seat 40, and a second abutting portion 31 is provided on the mounting seat 30 and is arranged opposite to the first abutting portion 41 in a vertical direction. The upper end of the first bearing 51 abuts against the lower end of the first abutting portion 41, and the lower end of the first bearing 51 abuts against the upper end of the second abutting portion 31; the first abutting portion 41 and the second abutting portion 31 are used to provide support for the installation and connection of the first bearing 51.

[0031] In one embodiment, a closed mixing barrel further includes a second bearing 52 arranged between the upper end of the first abutment portion 41 and the first locking sleeve 71 and a third bearing 53 arranged between the lower end of the second abutment portion 31 and the second locking sleeve 72; this arrangement can further improve the smoothness of rotation between the docking seat 40 and the mounting seat 30.

[0032] In one embodiment, a closed mixing barrel further includes a heat sink 80 and heat sink fins 90. The barrel body 10 is arranged in the heat sink 80 and a heat sink cavity 81 is constructed between its outer wall and the inner wall of the heat sink 80. The heat sink fins 90 are arranged on the outer wall of the barrel body 10 and located in the heat sink cavity 81. The upper end of the heat sink 80 is provided with a plurality of water inlets 82 communicating with the heat sink cavity 81, and the lower end is provided with a plurality of water outlets 83 communicating with the heat sink cavity 81. The heat sink fins 90 are connected to the outer wall of the barrel body 10 and placed in the heat sink 80 as a whole, so that the heat sink fins 90 are located between the outer wall of the barrel body 10 and the inner wall of the heat sink 80 to construct a heat sink. In the cavity 81, coolant (preferably water) is introduced into the heat dissipation cavity 81 through the water inlet 82 at the upper end of the heat dissipation seat 80, and the heat on the heat dissipation fins 90 is absorbed by the contact between the coolant and the heat dissipation fins 90; the mixing barrel is docked with the stirring device of the mixer. When in use, the barrel body 10 is placed in the heat dissipation seat 80, and the concrete base material is put into the barrel body 10 in sequence. After the barrel cover 20 is covered, the driving device drives the docking seat 40 to rotate relative to the mounting seat 30, and then drives the stirring paddle to stir the concrete mixture in the barrel body 10. The heat generated during the stirring process will be conducted to the coolant through the barrel body 10 and the heat dissipation fins 90 and carried away by the coolant.

[0033] In one embodiment, the heat dissipation fins 90 include a plurality of first heat dissipation fins 91 arranged in the horizontal direction and spaced apart in the vertical direction, and a plurality of second heat dissipation fins 92 arranged in the vertical direction and spaced apart in the horizontal direction.

[0034] In one embodiment, the first cooling fins 91 and the second cooling fins 92 are tilted downward; this arrangement can prevent the coolant from accumulating between the first cooling fins 91 and the second cooling fins 92 .

[0035] A concrete mixer comprises the mixing barrel.

[0036] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A closed mixing barrel, comprising a barrel body (10) and a barrel cover (20), wherein a mixing chamber (11) is provided in the barrel body (10); the barrel cover (20) is covered on the barrel body (10) and is provided with a plurality of feeding ports (12) communicating with the mixing chamber (11), characterized in that: It also includes a mounting seat (30), a docking seat (40), a first bearing (51) and a sealing ring (60); The mounting seat (30) is mounted on the barrel cover (20); The docking seat (40) is rotatably connected to the mounting seat (30) via the first bearing (51), the stirring paddle is connected to one end of the docking seat (40) close to the barrel (10), and the driving device is connected to one end of the docking seat (40) facing away from the barrel (10); The sealing ring (60) is installed between the mounting seat (30) and the docking seat (40).

2. A closed mixing barrel according to claim 1, characterized in that: The docking seat (40) is provided with a first abutting portion (41), and the mounting seat (30) is provided with a second abutting portion (31) arranged opposite to the first abutting portion (41) in a vertical direction. The upper end of the first bearing (51) abuts against the lower end of the first abutting portion (41), and the lower end of the first bearing (51) abuts against the upper end of the second abutting portion (31).

3. A closed mixing barrel according to claim 2, characterized in that: The invention also includes a first locking sleeve (71) and a second locking sleeve (72), wherein the first locking sleeve (71) is sleeved on the docking seat (40) and abuts against the upper end of the first abutting portion (41); the second locking sleeve (72) is sleeved on the mounting seat (30) and abuts against the lower end of the second abutting portion (31), and the first locking sleeve (71) and the second locking sleeve (72) are connected to limit the axial movement between the mounting seat (30) and the docking seat (40).

4. A closed mixing barrel according to claim 3, characterized in that: It also includes a second bearing (52) arranged between the upper end of the first abutting portion (41) and the first locking sleeve (71), and a third bearing (53) arranged between the lower end of the second abutting portion (31) and the second locking sleeve (72).

5. The closed mixing barrel according to claim 1, characterized in that: The invention also includes a heat sink (80) and heat sink fins (90). The barrel body (10) is arranged in the heat sink (80) and a heat sink cavity (81) is constructed between the outer wall of the barrel body (10) and the inner wall of the heat sink (80). The heat sink fins (90) are arranged on the outer wall of the barrel body (10) and located in the heat sink cavity (81). The upper end of the heat sink (80) is provided with a plurality of water inlets (82) communicating with the heat sink cavity (81), and the lower end is provided with a plurality of water outlets (83) communicating with the heat sink cavity (81).

6. The closed mixing barrel according to claim 5, characterized in that: The heat dissipation fins (90) include a plurality of first heat dissipation fins (91) arranged in a horizontal direction and spaced apart in a vertical direction, and a plurality of second heat dissipation fins (92) arranged in a vertical direction and spaced apart in a horizontal direction.

7. The closed mixing tank according to claim 6, characterized in that: The first heat sink (91) and the second heat sink (92) are inclined downward.

8. A concrete mixer, characterized in that: The mixing barrel comprises the mixing barrel according to any one of claims 1 to 7.

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