CN113752389A

CN113752389A - Flow control structure, concrete stirring system and stirring method

Info

Publication number: CN113752389A
Application number: CN202111115972.1A
Authority: CN
Inventors: 罗斌; 李明; 罗智斌; 王伟
Original assignee: Leshan Fuqiao Building Materials Co ltd
Current assignee: Leshan Fuqiao Building Materials Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-07
Anticipated expiration: 2041-09-23
Also published as: CN113752389B

Abstract

The invention discloses a flow control structure, a concrete mixing system and a mixing method, wherein the flow control structure comprises: a body having an inner lumen for passage of fluid therethrough; the inner cavity is provided with a flow blocking assembly, and the flow blocking assembly comprises a first flow blocking plate and a second flow blocking plate which are arranged at intervals; one end of the first flow baffle is contacted with the inner wall of the inner cavity, and the other end of the first flow baffle is arranged close to the axis of the inner cavity; one end of the second flow baffle is arranged at an interval with the inner wall of the inner cavity, and the other end of the second flow baffle is arranged close to the axis of the inner cavity; the flow blocking assembly has a first state that fluid can pass through the flow blocking assembly and a second state that the flow of the fluid is blocked to reduce the flow.

Description

Flow control structure, concrete stirring system and stirring method

Technical Field

The invention relates to the technical field of concrete, in particular to a flow control structure, a concrete stirring system and a stirring method.

Background

Concrete is a common building material, and is usually formed by mixing materials such as water, sand, stones, cement and the like, and during the preparation process of the concrete, the cohesion among the components is not enough to resist the sinking of coarse aggregates, and the components of concrete mixtures are separated from each other, so that the phenomenon of uneven internal composition and structure, namely the segregation of the concrete, is caused.

Concrete segregation not only can influence the quality of concrete but also can be to the preparation cost that increases the concrete, because the mode that often needs to adopt to add carries out the retreatment of concrete to realize the quality control of concrete, avoid appearing the segregation phenomenon and influence the quality of concrete.

The concrete segregation may be caused by a variety of reasons, including but not limited to, pouring, improper vibrating, too large a maximum aggregate size, too high a proportion of coarse aggregate, too low a content of cementitious material and fine aggregate, too high a density with fine aggregate compared to coarse aggregate, or too dry or too dilute a mix. .

In view of this, the present application is specifically made.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a flow control structure, a concrete stirring system and a stirring method.

The invention is realized by the following technical scheme:

first aspect

An embodiment of the present invention provides a flow control structure, including: a body having an inner cavity for passage of a fluid; the inner cavity is provided with a flow blocking assembly, the flow blocking assembly comprises a first flow blocking plate and a second flow blocking plate arranged on one side of the first flow blocking plate, and the first flow blocking plate and the second flow blocking plate are arranged at intervals; one end of the first flow baffle is in contact with the inner wall of the inner cavity, and the other end of the first flow baffle is arranged close to the axis of the inner cavity; one end of the second flow baffle is arranged at an interval with the inner wall of the inner cavity, and the other end of the second flow baffle is arranged close to the axis of the inner cavity; when one ends of the first flow baffle and the second flow baffle, which are close to the inner wall of the inner cavity, are located at the upstream of the fluid flowing direction relative to the other ends, the flow baffle assembly is in a first state, and fluid can pass through the flow baffle assembly; when the first flow baffle and the second flow baffle are located at the downstream of the inner wall of the inner cavity relative to the other end in the fluid flow direction, the flow baffle assembly is in a second state, and the flow baffle assembly blocks the fluid flow to reduce the flow.

In this embodiment, the flow control structure includes an inner cavity provided with a flow blocking assembly, the inner cavity is configured to allow a fluid to pass through, a first flow blocking plate and a second flow blocking plate are disposed in the inner cavity, when the flow control structure is used for flow control, the flow blocking assembly has two states, when the flow blocking assembly is in the first state, one end of each of the first flow blocking plate and the second flow blocking plate, which is close to the inner wall of the inner cavity, is located upstream of the other end of the inner wall of the inner cavity with respect to the flow direction, at this moment, when the fluid flows in the inner cavity, a surface of the first flow blocking plate, which is close to the upstream of the flow direction, can guide the fluid, the fluid moves along the surface in a direction close to the axis of the inner cavity, and after passing through one end of the first flow blocking plate, the fluid cooperates with the second flow blocking plate, because the first flow blocking plate and the second flow blocking plate are spaced apart from each other, the first flow baffle and the second flow baffle are provided with two surfaces forming a gap, when fluid moves to the position, due to the arrangement of the gap, the fluid can be partially shunted, so that the change of the direction of the fluid is realized, and because in the state, one end, close to the inner wall, of the second flow baffle is positioned at the upstream, based on the inclined state of the second flow baffle in the state, the direction of the shunted fluid is the same as the direction of the fluid on the main flow channel, and the fluid is overlapped to a certain extent, so that the fluid can smoothly pass through the flow baffle assembly; when the flow blocking assembly is in the second state, one end of each of the first flow blocking plate and the second flow blocking plate close to the inner wall of the inner cavity is located downstream relative to the other end in the fluid flow direction, based on the inclined state of the first flow blocking plate in this state, the surface of the first flow blocking plate close to the upstream in the flow direction can guide the fluid, so that the fluid moves along the direction of the first flow blocking plate, and when the fluid moves to the position of the first flow blocking plate due to the inclined state of the first flow blocking plate, the surface of the first flow blocking plate changes the movement direction of the fluid, and a part of backflow exists, namely the movement direction is turned; after a part of fluid passes through the other end of the first flow baffle, the fluid is divided at a position between the first flow baffle and the second flow baffle, the divided fluid moves along the gap, and after the fluid moves along the gap, the moving direction of the divided fluid is opposite to that of the main fluid, so that the fluid is blocked to a certain extent, and the flow rate can be effectively reduced; based on the flow control structure, the flow control is realized through one structure by utilizing the flow control structure designed by the invention, the structure is simple, the flow control is realized based on the remote fluid mechanics, the change of the fluid flow can be effectively realized, and the applicability is improved.

Furthermore, the first flow baffle and the second flow baffle are both multiple, the multiple first flow baffles are arranged at intervals along the inner wall of the inner cavity, one of the second flow baffles is arranged between the gaps of the two adjacent second flow baffles, and the flow blocking effect can be effectively improved through the structural design of the multiple first flow baffles and the multiple second flow baffles.

Furthermore, the first flow baffle comprises a first upper flow baffle unit and a first lower flow baffle unit, and one end of the first upper flow baffle unit is in contact with the inner wall of one side of the axis of the inner cavity; one end of the first lower flow baffle unit is in contact with the inner wall of the other side of the axis of the inner cavity; the other end of the first upper flow baffle unit and the other end of the first lower flow baffle unit are arranged at intervals to form a circulation path for realizing fluid circulation; the second flow baffle comprises a second upper flow baffle unit and a second lower flow baffle unit, and one end of the second upper flow baffle unit is arranged at an interval with the inner wall of one side of the axis of the inner cavity; one end of the second lower baffle plate unit is arranged at an interval with the inner wall of the other side of the axis of the inner cavity; the other end of the second upper flow baffle unit and the other end of the second lower flow baffle unit are respectively positioned at two sides of the flow path, and flow baffle units are arranged at two sides by aiming at the structural design of the first flow baffle and the second flow baffle, so that the reliability of flow control is further realized.

Further, the flow stopping device further comprises a driving assembly, wherein the driving assembly is connected with the flow stopping assembly, and the driving assembly is used for driving the state switching of the flow stopping assembly so as to realize flow control.

Further, the first upper baffle plate unit is provided with a first upper rotating shaft, and the first upper rotating shaft is collinear with the central axis of the first upper baffle plate unit; the first lower flow baffle unit is provided with a first lower rotating shaft, and the first lower rotating shaft is collinear with the central axis of the first lower flow baffle unit; the driving unit comprises a first upper rack, a first lower rack and a first gear meshed with the first upper rack and the first lower rack; one end of the first upper rack is matched with the first upper rotating shaft to drive the first upper rotating shaft to rotate along a first direction; the other end of the first upper rack is meshed with the first gear; one end of the first lower rack is meshed with the first gear, and the other end of the first lower rack is matched with the first lower rotating shaft to drive the first lower rotating shaft to rotate along a second direction; the second upper baffle plate unit is provided with a second upper rotating shaft, and the second upper rotating shaft is collinear with the central axis of the second upper baffle plate unit; the second lower baffle plate unit is provided with a second lower rotating shaft, and the second lower rotating shaft is collinear with the central axis of the second lower baffle plate unit; the driving unit further comprises a second upper rack, a second lower rack and a second gear meshed with the second upper rack and the second lower rack; one end of the second upper rack is matched with the second upper rotating shaft to drive the second upper rotating shaft to rotate along a first direction; the other end of the second upper rack is meshed with the second gear; one end of the second lower rack is meshed with the second gear, and the other end of the second lower rack is matched with the second lower rotating shaft to drive the first lower rotating shaft to rotate along a second direction; the first direction and the second direction are opposite, and through the structural design of the driving assembly, the change of the inclined protrusions of the flow blocking unit relative to the fluid movement direction can be achieved in a targeted manner, and the flow control can be achieved in a targeted manner.

Furthermore, the driving assembly further comprises a first upper connecting rod, a first lower connecting rod, a second upper connecting rod and a second lower connecting rod, the rotating center of the first upper connecting rod along the length direction of the first upper connecting rod is connected with the first upper rotating shaft, and one end of the first upper connecting rod is connected with the first upper rack and used for driving the first upper connecting rod to rotate along the first direction; the rotating center of the second upper connecting rod along the length direction of the second upper connecting rod is connected with the second upper rotating shaft, and one end of the second upper connecting rod is connected with the second upper rack and used for driving the second upper connecting rod to rotate along the first direction; the rotating center of the first lower connecting rod along the length direction of the first lower connecting rod is connected with the first lower rotating shaft, and one end of the first lower connecting rod is connected with the first lower rack and is used for driving the first lower connecting rod to rotate along the second direction; the second lower connecting rod is connected with the second lower rotating shaft along the rotating center of the second lower connecting rod in the length direction, one end of the second lower connecting rod is connected with the second lower rack and used for driving the second lower connecting rod to rotate in the second direction, and the upper flow blocking unit and the lower flow blocking unit rotate in opposite directions through specific structural design, so that flow control is achieved.

Furthermore, the first upper rotating shaft and the first lower rotating shaft form a first plane; the second upper rotating shaft and the second lower rotating shaft form a second plane; the first plane and the second plane are parallel to each other, and both the first plane and the second plane are obliquely arranged relative to the axis of the inner cavity, so that the relative position design of the upper flow blocking unit and the lower flow blocking unit is realized by aiming at the relative position arrangement of the upper rotating shaft and the lower rotating shaft, and the flow control is further realized.

Furthermore, the driving assembly further comprises a first connecting plate, a second connecting plate and a third connecting plate; the first upper rack and the second upper rack are respectively used for connecting one ends, matched with the first upper rotating shaft and the second upper rotating shaft, of the first upper rack and the second upper rack with the first connecting plate; one ends, which are respectively used for being matched with the first lower rotating shaft and the second lower rotating shaft, of the first lower rack and the second lower rack are connected with the second connecting plate; the second connecting plate with the third connecting plate interval sets up, the second connecting plate with the clearance between the third connecting plate still is provided with a plurality of elastic component, through for drive assembly's structural design, can effectually realize the state of fender class subassembly switches, and can realize predetermineeing different flow control states.

Second aspect of the invention

The embodiment of the invention also provides a concrete mixing system which is characterized by comprising the flow control structure and a mixing device, wherein one end of the flow control structure is connected with an external water supply device, and the other end of the flow control structure is connected with the mixing device; the stirring device is matched with the first connecting plate for realizing the movement of the driving assembly, so that the flow switching is realized.

In this aspect, the concrete mixing system includes the flow control structure and the mixing device, and the control of the water supply amount of the mixing device is realized by the flow control structure, and when the mixing system according to this aspect is used for mixing, the mixing device is matched with the first connection plate, and the movement of the first connection plate is realized by the change of the gravity of the mixing device, so that the state switching of the flow control structure is realized.

Third aspect of the invention

The embodiment of the invention also provides a concrete mixing method, which is characterized in that based on the concrete mixing system, the weight of each component is estimated according to the preparation requirement of concrete; according to the weight of each component, estimating the water requirement of concrete stirring; estimating the total weight of the concrete after the stirring is finished by combining the water demand; the stirring device is matched with the first connecting plate, and the first connecting plate is driven by the gravity of the stirring device; when the weight of the stirring device in the stirring process is larger than the first weight, the gravity generated by the instant weight of the stirring device is larger than the upward resultant force formed by the supporting force and the elastic force between the elastic components, and the first connecting plate moves, so that the flow control of the flow control structure is realized.

In this scheme, the concrete mixing method is performed based on the concrete mixing system, the flow control structure is adopted, the first connecting plate and the mixing device are matched with each other, the weight change of the mixing device is sensed through the first connecting plate, the upper flow blocking unit and the lower flow blocking unit are driven through the weight change, the change of the flow control state is realized, and the flow control is realized.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. according to the flow control structure, the concrete stirring system and the stirring method provided by the embodiment of the invention, the probability of concrete segregation can be effectively reduced through the flow control structure, the concrete stirring system and the stirring method, so that the purposes of improving the quality of concrete, improving the preparation efficiency and reducing the preparation cost are achieved;

2. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, the flow resisting effect can be effectively improved through the structural design of the first flow baffle plates and the second flow baffle plates;

3. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, the flow baffle units are arranged on two sides of the first flow baffle and the second flow baffle by aiming at the structural design of the first flow baffle and the second flow baffle, so that the reliability of flow control is further realized;

4. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, through the structural design of the driving assembly, the change of the inclined protrusions of the flow blocking unit relative to the movement direction of the fluid can be realized in a targeted manner, and the flow control can be realized in a targeted manner;

5. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, the rotation in opposite directions of the upper flow blocking unit and the lower flow blocking unit is realized through the specific structural design of the driving assembly, so that the flow control is realized;

6. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, the relative position design of the upper flow blocking unit and the lower flow blocking unit is realized by setting the relative positions of the upper rotating shaft and the lower rotating shaft, so that the flow control is further realized;

7. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, through the structural design aiming at the driving assembly, the state switching of the flow blocking assembly can be effectively realized, and different preset flow control states can be realized;

8. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, through the structural design aiming at the concrete mixing system, the flow control of water supply in the concrete mixing process can be effectively realized, the phenomenon of concrete segregation caused by overlarge water supply amount can be effectively avoided, the preparation efficiency and quality of concrete can be effectively improved, and the reduction of production cost can be realized;

9. according to the flow control structure, the concrete mixing system and the mixing method provided by the embodiment of the invention, through the method design aiming at the concrete mixing system, the flow control of water supply in the concrete mixing process can be effectively realized, the phenomenon of concrete segregation caused by overlarge water supply can be effectively avoided, the preparation efficiency and quality of concrete can be effectively improved, and the reduction of production cost can be realized.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a flow control structure according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a flow blocking state (i.e., a second state) of a flow control structure provided by an embodiment of the present invention;

fig. 3 is a schematic diagram of a flow control structure in a flow guiding state (i.e., a first state) according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of area A of FIG. 1;

fig. 6 is a schematic view illustrating the mixing device and the first connecting plate according to the embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

100-main body, 110-inner cavity, 210-first baffle plate, 211-first upper baffle plate unit, 211 a-first upper rotating shaft, 212-first lower baffle plate unit, 212 a-first lower rotating shaft, 220-second baffle plate, 221-second upper baffle plate unit, 221 a-second upper rotating shaft, 222-second lower baffle plate unit, 222 a-second lower rotating shaft, 311-first upper rack, 312-first lower rack, 313-first gear, 321-second upper rack, 322-second lower rack, 323-second gear, 331-first upper connecting rod, 332-first lower connecting rod, 341-second upper connecting rod, 342-second lower connecting rod, 351-first connecting plate, 352-second connecting plate, 353-third connecting plate, 354-elastic component, 400-stirring device, 500-limiting piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.

Examples

As shown in fig. 1, an embodiment of the present invention provides a flow control structure, including: a body 100, the body 100 having an interior cavity 110 for passage of a fluid; the inner cavity 110 is provided with a flow blocking assembly, the flow blocking assembly includes a first flow blocking plate 210 and a second flow blocking plate 220 disposed on one side of the first flow blocking plate 210, and the first flow blocking plate 210 and the second flow blocking plate 220 are disposed at intervals; one end of the first flow baffle 210 contacts with the inner wall of the inner cavity 110, and the other end of the first flow baffle 210 is disposed close to the axis of the inner cavity 110; one end of the second flow baffle 220 is spaced apart from the inner wall of the inner cavity 110, and the other end of the second flow baffle 220 is close to the axis of the inner cavity 110; when the first baffle plate 210 and the second baffle plate 220 are located upstream in the fluid flow direction relative to each other at one end of the inner wall of the inner cavity 110, the baffle assembly assumes a first state, and fluid can pass through the baffle assembly; when the first flow blocking plate 210 and the second flow blocking plate 220 are located at the downstream end of the inner wall of the inner cavity 110 relative to the other end, the flow blocking assembly assumes the second state, and the flow blocking assembly blocks the fluid flow, thereby reducing the flow rate.

The other ends of the first flow baffle 210 and the second flow baffle 220 are both disposed close to the axis of the inner cavity 110, that is, the other ends of the first flow baffle 210 and the second flow baffle 220 are close to the axis relative to the connection ends of the first flow baffle 210 and the second flow baffle 220 and the inner wall of the inner cavity 110.

It should be noted that, in some embodiments, when the state is switched, the state switching of the flow blocking member is realized by rotating an inclination angle of the flow blocking plate relative to the direction of the fluid, so that the contact end of the first flow blocking plate 210 and the inner cavity 110 can slide along the inner wall and allow the fluid to flow through from the corresponding sliding position.

One end of the second baffle 220 is spaced apart from the inner wall of the inner cavity 110, that is, a gap is formed between the second baffle 220 and the inner wall of the inner cavity 110, through which fluid can flow.

The shape of the inner cavity 110 may be a cylindrical shape or a long strip shape, and it should be noted that the specific shape of the inner cavity 110 is not limited, and as those skilled in the art will know, the flow baffle plate is disposed in the inner cavity 110, and the flow baffle plate has different inclination angles with respect to the movement direction of the fluid, so as to achieve the purpose of flow guiding and flow blocking.

In this embodiment, the flow control structure includes an inner cavity 110 having a flow blocking member, the inner cavity 110 is configured to allow a fluid to pass through, a first flow blocking plate 210 and a second flow blocking plate 220 are disposed in the inner cavity 110, when the flow control structure is used for flow control, the flow blocking member has two states, when the flow blocking member assumes a first state, one end of each of the first flow blocking plate 210 and the second flow blocking plate 220 close to the inner wall of the inner cavity 110 is located upstream in the fluid flow direction relative to the other end, at this time, when the fluid flows in the inner cavity 110, a surface of the first flow blocking plate 210 close to the upstream in the fluid flow direction can guide the fluid, the fluid moves along the surface in the direction close to the axis of the inner cavity 110, and after passing through one end of the first flow blocking plate 210 close to the axis, the fluid cooperates with the second flow blocking plate 220, because the first flow baffle 210 and the second flow baffle 220 are arranged at intervals, the first flow baffle 210 and the second flow baffle 220 have two surfaces forming a gap, when the fluid moves to the position, the fluid can be partially shunted due to the arrangement of the gap, so that the direction of the fluid is changed, because in this state, one end of the second flow baffle 220 close to the inner wall is located at the upstream, based on the inclined state of the second flow baffle in this state, the direction of the shunted fluid is the same as the direction of the fluid on the main flow channel, and a certain degree of superposition exists, based on this, the fluid can smoothly pass through the flow baffle assembly; when the flow blocking assembly is in the second state, one end of each of the first flow blocking plate 210 and the second flow blocking plate 220 close to the inner wall of the inner cavity 110 is located downstream with respect to the other end in the fluid flow direction, based on the inclined state of the first flow blocking plate 210 in this state, the surface of the first flow blocking plate 210 close to the upstream in the fluid flow direction can guide the fluid, so that the fluid moves along the direction of the first flow blocking plate 210, and due to the inclined state of the first flow blocking plate 210, when the fluid moves to the position of the first flow blocking plate 210, the surface of the first flow blocking plate 210 changes the fluid movement direction, and there is a portion of backflow, i.e., the movement direction is turned; after a part of the fluid passes through the other end of the first flow baffle 210, the fluid is divided at a position between the first flow baffle 210 and the second flow baffle 220, the divided fluid moves along the gap, and after the fluid moves along the gap, the moving direction of the divided fluid is opposite to the moving direction of the main fluid, so that the fluid is blocked to a certain extent, and the flow rate can be effectively reduced; based on the flow control structure, the flow control is realized through one structure by utilizing the flow control structure designed by the invention, the structure is simple, the flow control is realized based on the remote fluid mechanics, the change of the fluid flow can be effectively realized, and the applicability is improved.

As shown in fig. 3, when one end of the first flow baffle 210 and the second flow baffle 220 close to the inner wall is located upstream in the fluid flowing direction relative to the other end, that is, as shown in the figure, when the fluid flows to contact with the surface of the flow baffle, the included angle formed by the fluid is an obtuse angle, the included angle can change along the surface of the flow baffle, move to a direction close to the non-connected end (i.e., the other end) of the flow baffle, and collect with the fluid that does not act on the flow baffle, and continue to move, and the moving directions of the two are substantially the same, so that the moving state of the fluid in the main flow channel is not affected during the collection, when the collected fluid continues to move along the main flow channel, and when the fluid flows between the first flow baffle 210 and the second flow baffle 220, a part of the fluid can continue to flow along the flow channel formed by the gap between the first flow baffle 210 and the second flow baffle 220, and shunt again, because the structural design of runner, at the fluid exit end of this time reposition of redundant personnel runner, the direction of motion of reposition of redundant personnel fluid is roughly the same with the direction of motion of sprue fluid, and the fluid converges again, based on this kind of runner setting, when shunting and converging, all can not cause the hindrance to the state of fluid, and through the structural design of reposition of redundant personnel runner, to a certain extent, can improve fluidic velocity of flow to fluid acceleration flow has been realized.

As shown in fig. 2, which is a schematic diagram illustrating a flow-blocking state of the flow control structure, when one end of the first flow blocking plate 210 and one end of the second flow blocking plate 220 close to the inner wall are located downstream in the fluid flow direction relative to the other end, that is, as shown in the figure, when the fluid flows to contact the surface of the flow blocking plate, an included angle formed by the fluid is an acute angle, the fluid changes direction along the surface of the flow blocking plate, the flow direction of the fluid after changing direction is opposite to the flow direction of the fluid before changing direction to a certain extent, and after the fluid after changing direction is collected with the fluid which does not act on the flow blocking plate, the flow velocity of the collected fluid is reduced; the fluid continues to move forward, when the fluid flows between the first flow baffle 210 and the second flow baffle 220, a part of the fluid can continue to flow along the flow channel formed by the gap between the first flow baffle 210 and the second flow baffle 220, and is divided again, due to the structural design of the flow channel, at the fluid outlet end of the secondary flow dividing flow channel, the moving direction of the divided fluid is approximately opposite to the moving direction of the fluid in the main flow channel, and the fluid is converged again.

In some embodiments, the first flow baffles 210 and the second flow baffles 220 are multiple, the first flow baffles 210 are spaced along the inner wall of the inner cavity 110, one second flow baffle 220 is disposed between the gaps of two adjacent second flow baffles 220, and the flow-blocking effect can be effectively improved by the structural design of the first flow baffles 210 and the second flow baffles 220.

The first flow blocking plates 210 are spaced apart from each other along the inner wall of the inner cavity 110, one of the second flow blocking plates 220 is disposed between the gaps between two adjacent second flow blocking plates 220, specifically, one of the second flow blocking plates 220 is disposed between two first flow blocking plates 210, that is, the first flow blocking plates 210 and the second flow blocking plates 220 are spaced apart from each other, and the gaps between the second flow blocking plates 220 and the first flow blocking plates 210 on two sides of the second flow blocking plates 220 are used for fluid to pass through.

In some embodiments, the first baffle plate 210 includes a first upper baffle plate unit 211 and a first lower baffle plate unit 212, and one end of the first upper baffle plate unit 211 contacts with an inner wall of the inner cavity 110 on one side of the axis; one end of the first lower baffle plate unit 212 is in contact with the inner wall of the other side of the axis of the inner cavity 110; the other end of the first upper baffle plate unit 211 and the other end of the first lower baffle plate unit 212 are arranged at an interval to form a circulation path for realizing fluid circulation; the second baffle 220 includes a second upper baffle unit 221 and a second lower baffle unit 222, wherein one end of the second upper baffle unit 221 is spaced from the inner wall of the inner cavity 110 on one side of the axis; one end of the second lower baffle plate unit 222 is spaced from the inner wall of the other side of the axis of the inner cavity 110; the other end of the second upper baffle unit 221 and the other end of the second lower baffle unit 222 are respectively located at two sides of the flow path, and baffle units are respectively disposed at two sides by aiming at the structural design of the first baffle 210 and the second baffle 220, so as to further realize the reliability of flow control.

The flow baffle plate is arranged on the flow baffle plate units on two sides of the axis, and flow guiding and flow blocking can be further realized through the design of the flow baffle plate units on two sides.

As shown in fig. 4, in some embodiments, the flow blocking device further includes a driving assembly, the driving assembly is connected to the flow blocking assembly, and the driving assembly is configured to drive the flow blocking assembly to switch states, so as to achieve flow control.

Specifically, the first upper baffle plate unit 211 is provided with a first upper rotating shaft 211a, and the first upper rotating shaft 211a is collinear with a central axis of the first upper baffle plate unit 211; the first lower baffle plate unit 212 is provided with a first lower rotating shaft 212a, and central axes of the first lower rotating shaft 212a and the first lower baffle plate unit 212 are collinear; the driving unit comprises a first upper rack 311, a first lower rack 312, and a first gear 313 engaged with the first upper rack 311 and the first lower rack 312; one end of the first upper rack 311 is matched with the first upper rotating shaft 211a to drive the first upper rotating shaft 211a to rotate along a first direction; the other end of the first upper rack 311 is meshed with the first gear 313; one end of the first lower rack 312 is engaged with the first gear 313, and the other end of the first lower rack 312 is engaged with the first lower rotating shaft 212a to drive the first lower rotating shaft 212a to rotate along a second direction; the second upper baffle plate unit 221 is provided with a second upper rotating shaft 221a, and central axes of the second upper rotating shaft 221a and the second upper baffle plate unit 221 are collinear; the second lower baffle plate unit 222 is provided with a second lower rotating shaft 222a, and the central axis of the second lower rotating shaft 222a is collinear with that of the second lower baffle plate unit 222; the driving unit further includes a second upper rack 321, a second lower rack 322, and a second gear 323 engaged with the second upper rack 321 and the second lower rack 322; one end of the second upper rack 321 is matched with the second upper rotating shaft 221a to drive the second upper rotating shaft 221a to rotate along a first direction; the other end of the second upper rack 321 is engaged with the second gear 323; one end of the second lower rack 322 is engaged with the second gear 323, and the other end of the second lower rack 322 is engaged with the second lower rotating shaft 222a to drive the first lower rotating shaft 212a to rotate along the second direction; the first direction and the second direction are opposite, and through the structural design of the driving assembly, the change of the inclined protrusions of the flow blocking unit relative to the fluid movement direction can be achieved in a targeted manner, and the flow control can be achieved in a targeted manner.

The driving assembly is connected with the flow blocking assembly to achieve state switching of the flow blocking assembly, the driving assembly is driven by the upper rotating shaft and the lower rotating shaft, specifically, the upper rotating shaft and the lower rotating shaft are located outside the inner cavity 110, the outer side of the side wall of the inner cavity 110 is connected with the driving assembly, and attention needs to be paid to the fact that the sealing performance is guaranteed due to the matching relation between the rotating shafts and the side wall, namely fluid leakage is avoided.

The upper rotating shaft and the lower rotating shaft mainly aim at realizing rotation of the flow baffle plate unit so as to change the included angle between the flow baffle plate unit and the fluid direction, and therefore the positions of the upper rotating shaft and the lower rotating shaft are provided with the rotating axis of the flow baffle plate unit, so that the included angle is changed through rotation.

It should be noted that, as a person skilled in the art should know, the rotation of the flow baffle unit is realized by the driving member, so as to realize the change of the inclination angle, wherein, when the flow baffle unit rotates, the change of the relative distance between the end of the flow baffle unit and the inner wall of the inner cavity 110 inevitably occurs, and it is necessary to set the receding groove in which the end of the flow baffle unit is matched with each other at the corresponding position of the inner wall of the inner cavity 110, and it should be noted that, for the specific arrangement of the groove and the end, it should be ensured that the end of the flow baffle unit can relatively slide with respect to the side wall of the inner cavity 110, and the fluid cannot pass through the gap between the two.

As shown in fig. 5, specifically, corresponding limiting members 500 may be further disposed on two sides of the groove, so as to prevent the inner wall of the inner cavity 110 from being separated from the end of the flow baffle unit due to an excessively large rotation angle of the flow baffle unit.

In some embodiments, the driving assembly further includes a first upper connecting rod 331, a first lower connecting rod 332, a second upper connecting rod 341, a second lower connecting rod 342, the first upper connecting rod 331 is connected to the first upper rotating shaft 211a along a rotation center of a length direction thereof, and one end of the first upper connecting rod 331 is connected to the first upper rack 311 for driving the first upper connecting rod 331 to rotate in a first direction; the second upper connection rod 341 is connected to the second upper rotation shaft 221a along the rotation center of the second upper connection rod 341 in the length direction, and one end of the second upper connection rod 341 is connected to the second upper rack 321, so as to drive the second upper connection rod 341 to rotate in the first direction; the first lower connecting rod 332 is connected to the first lower rotating shaft 212a along the rotation center of the length direction thereof, and one end of the first lower connecting rod 332 is connected to the first lower rack 312, so as to drive the first lower connecting rod 332 to rotate along the second direction; the second lower connecting rod 342 is connected to the second lower rotating shaft 222a along a rotation center of the second lower connecting rod 342 in a length direction thereof, and one end of the second lower connecting rod 342 is connected to the second lower rack 322 to drive the second lower connecting rod 342 to rotate in a second direction.

Specifically, the driving assembly further includes a first connecting plate 351, a second connecting plate 352, and a third connecting plate 353; the first upper rack 311 and the second upper rack 321 are respectively used for connecting one end of the first upper rotating shaft 211a and one end of the second upper rotating shaft 221a, which are matched with each other, with the first connecting plate 351; one end of each of the first lower rack 312 and the second lower rack 322, which is used for being matched with the first lower rotating shaft 212a and the second lower rotating shaft 222a, is connected to the second connecting plate 352; the second connecting plate 352 and the third connecting plate 353 are arranged at intervals, and a plurality of elastic assemblies 354 are further arranged in a gap between the second connecting plate 352 and the third connecting plate 353, so that the state switching of the flow blocking assembly can be effectively realized through the structural design of the driving assembly, and different preset flow control states can be realized.

It should be noted that, the number of the racks, the gears and the connecting rods should correspond to the number of the flow blocking units one to one, so as to ensure the driving effectiveness.

In some embodiments, the first upper rotating shaft 211a and the first lower rotating shaft 212a form a first plane; the second upper rotating shaft 221a and the second lower rotating shaft 222a form a second plane; the first plane and the second plane are parallel to each other, and both the first plane and the second plane are obliquely arranged relative to the axis of the inner cavity 110, so that the relative position design of the upper flow blocking unit and the lower flow blocking unit is realized by arranging the upper rotating shaft and the lower rotating shaft in a relative position, and the flow control is further realized.

The first plane and the second plane are obliquely arranged relative to the axis, namely, the flow dividing position and the flow converging position formed between the upper baffle plate units and the flow dividing position and the flow converging position formed between the lower baffle plate units are arranged in a staggered mode, and therefore flow control is further achieved.

It should be noted that the interaction between the elastic component 354 and the driving component can realize the presetting of the initial flow rate of the flow control structure, that is, the initial flow rate is a large flow rate in the real state, and the initial flow rate is changed into a small flow rate after being driven by the driving component, or vice versa.

As shown in fig. 6, an embodiment of the present invention further provides a concrete mixing system, which is characterized by including the above flow control structure, and further including a mixing device 400, where one end of the flow control structure is used to connect with an external water supply device, and the other end of the flow control structure is connected with the mixing device 400; the stirring device 400 is mutually matched with the first connecting plate 351 and used for realizing the movement of the driving component, thereby realizing the flow switching.

The stirring device 400 and the first connecting plate 351 are matched with each other, that is, the gravity of the stirring device 400 can directly interact with the first connecting plate 351, the first connecting plate 351 can move downwards under the action of the gravity of the stirring device 400, so that the driving of the flow blocking assembly is realized, and particularly, the first connecting plate 351 can be directly used for bearing the stirring device 400, so that the transmission of the gravity is realized.

It should be noted that, as those skilled in the art will know, when concrete mixing is performed, in order to ensure mixing efficiency in the early stage of mixing, the amount of water injection may be controlled to be large, and in the later stage of mixing, a small amount of water supply is required in order to avoid segregation of concrete due to an excessive amount of water supply.

In this embodiment, the concrete mixing system includes the flow rate control structure and the mixer 400, and the control of the water supply amount to the mixer 400 is realized by the flow rate control structure, and when the mixing system according to the present embodiment is used for mixing, the mixer 400 is engaged with the first connection plate 351, and the movement of the first connection plate 351 is realized by the change of the gravity of the mixer 400, thereby realizing the state switching of the flow rate control structure.

The embodiment of the invention also provides a concrete mixing method, which is characterized in that based on the concrete mixing system, the weight of each component is estimated according to the preparation requirement of concrete; according to the weight of each component, estimating the water requirement of concrete stirring; estimating the total weight of the concrete after the stirring is finished by combining the water demand; the stirring device 400 is matched with the first connecting plate 351, and the first connecting plate 351 is driven by the gravity of the stirring device 400; when the weight of the stirring device 400 during stirring is greater than the first weight, the weight generated by the instant weight of the stirring device 400 is greater than the upward resultant force formed by the supporting force and the elastic force between the elastic components, and the first connecting plate 351 moves, thereby achieving the flow control of the flow control structure.

In this embodiment, the concrete mixing method is performed based on the concrete mixing system, the flow control structure is adopted, the first connecting plate 351 and the mixing device 400 are matched with each other, the weight change of the mixing device 400 is sensed through the first connecting plate 351, the upper baffle unit and the lower baffle unit are driven through the weight change, the flow control state is changed, and therefore flow control is achieved.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A flow control structure, comprising:

a body (100), the body (100) having an inner cavity (110) for passage of a fluid;

the inner cavity (110) is provided with a flow blocking assembly, the flow blocking assembly comprises a first flow blocking plate (210) and a second flow blocking plate (220) arranged on one side of the first flow blocking plate (210), and the first flow blocking plate (210) and the second flow blocking plate (220) are arranged at intervals;

one end of the first flow baffle (210) is in contact with the inner wall of the inner cavity (110), and the other end of the first flow baffle (210) is arranged close to the axis of the inner cavity (110);

one end of the second flow baffle (220) is arranged at an interval with the inner wall of the inner cavity (110), and the other end of the second flow baffle (220) is arranged close to the axis of the inner cavity (110);

when one end of the first flow baffle plate (210) and one end of the second flow baffle plate (220) close to the inner wall of the inner cavity (110) are both located at the upstream of the fluid flow direction relative to the other end, the flow baffle assembly assumes a first state, and fluid can pass through the flow baffle assembly;

when one end of the first flow baffle plate (210) and one end of the second flow baffle plate (220) close to the inner wall of the inner cavity (110) are both located at the downstream of the other end in the fluid flow direction, the flow baffle assembly assumes the second state, and the flow baffle assembly obstructs the fluid flow, so that the flow is reduced.

2. A flow control structure according to claim 1, wherein the first flow baffle plate (210) and the second flow baffle plate (220) are plural, the plural first flow baffle plates (210) are disposed at intervals along the inner wall of the inner cavity (110) (110), and one of the second flow baffle plates (220) is disposed between the gaps of two adjacent second flow baffle plates (220).

3. A flow control structure according to claim 2, wherein the first baffle plate (210) comprises a first upper baffle plate unit (211) and a first lower baffle plate unit (212), one end of the first upper baffle plate unit (211) is in contact with an inner wall on one side of the axis of the inner chamber (110); one end of the first lower baffle plate unit (212) is in contact with the inner wall of the other side of the axis of the inner cavity (110); the other end of the first upper baffle plate unit (211) and the other end of the first lower baffle plate unit (212) are arranged at intervals to form a circulation path for realizing fluid circulation; the second baffle plate (220) comprises a second upper baffle plate unit (221) and a second lower baffle plate unit (222), and one end of the second upper baffle plate unit (221) is arranged at an interval with the inner wall of one side of the axis of the inner cavity (110); one end of the second lower baffle plate unit (222) is arranged at an interval with the inner wall of the other side of the axis of the inner cavity (110); the other end of the second upper baffle plate unit (221) and the other end of the second lower baffle plate unit (222) are respectively located on both sides of the flow path.

4. The flow control structure as claimed in claim 3, further comprising a driving assembly connected to the flow blocking assembly, wherein the driving assembly is used for driving the state switching of the flow blocking assembly, so as to realize the flow control.

5. A flow control structure according to claim 4, wherein the first upper baffle plate unit (211) is provided with a first upper rotating shaft (211a), and the first upper rotating shaft (211a) is collinear with a central axis of the first upper baffle plate unit (211); the first lower baffle plate unit (212) is provided with a first lower rotating shaft (212a), and the central axes of the first lower rotating shaft (212a) and the first lower baffle plate unit (212) are collinear; the driving unit comprises a first upper rack (311), a first lower rack (312), and a first gear (313) engaged with the first upper rack (311) and the first lower rack (312); one end of the first upper rack (311) is matched with the first upper rotating shaft (211a) to drive the first upper rotating shaft (211a) to rotate along a first direction; the other end of the first upper rack (311) is meshed with the first gear (313); one end of the first lower rack (312) is meshed with the first gear (313), and the other end of the first lower rack (312) is matched with the first lower rotating shaft (212a) to drive the first lower rotating shaft (212a) to rotate along a second direction; the second upper baffle plate unit (221) is provided with a second upper rotating shaft (221a), and the central axes of the second upper rotating shaft (221a) and the second upper baffle plate unit (221) are collinear; the second lower baffle plate unit (222) is provided with a second lower rotating shaft (222a), and central axes of the second lower rotating shaft (222a) and the second lower baffle plate unit (222) are collinear; the driving unit further comprises a second upper rack (321), a second lower rack (322), and a second gear (323) engaged with the second upper rack (321) and the second lower rack (322); one end of the second upper rack (321) is matched with the second upper rotating shaft (221a) to drive the second upper rotating shaft (221a) to rotate along a first direction; the other end of the second upper rack (321) is meshed with the second gear (323); one end of the second lower rack (322) is meshed with the second gear (323), and the other end of the second lower rack (322) is matched with the second lower rotating shaft (222a) to drive the first lower rotating shaft (212a) to rotate along a second direction; the first direction and the second direction are opposite in direction.

6. A flow control structure according to claim 5, wherein the driving assembly further comprises a first upper connecting rod (331), a first lower connecting rod (332), a second upper connecting rod (341), a second lower connecting rod (342), the first upper connecting rod (331) is connected with the first upper rotating shaft (211a) along the rotation center of the length direction thereof, one end of the first upper connecting rod (331) is connected with the first upper rack (311) for driving the first upper connecting rod (331) to rotate along the first direction; the rotating center of the second upper connecting rod (341) along the length direction thereof is connected with the second upper rotating shaft (221a), and one end of the second upper connecting rod (341) is connected with the second upper rack (321) and is used for driving the second upper connecting rod (341) to rotate along the first direction; the rotating center of the first lower connecting rod (332) along the length direction thereof is connected with the first lower rotating shaft (212a), and one end of the first lower connecting rod (332) is connected with the first lower rack (312) and is used for driving the first lower connecting rod (332) to rotate along a second direction; the second lower connecting rod (342) is connected with the second lower rotating shaft (222a) along the rotation center of the length direction thereof, and one end of the second lower connecting rod (342) is connected with the second lower rack (322) and is used for driving the second lower connecting rod (342) to rotate along the second direction.

7. A flow control structure according to claim 5, characterized in that said first upper rotating shaft (211a) and said first lower rotating shaft (212a) constitute a first plane; the second upper rotating shaft (221a) and the second lower rotating shaft (222a) form a second plane; the first plane and the second plane are parallel to each other, and both the first plane and the second plane are obliquely arranged relative to the axis of the inner cavity (110).

8. A flow control structure according to any of claims 5 to 7, characterised in that the drive assembly further comprises a first connecting plate (351), a second connecting plate (352), a third connecting plate (353); the first upper rack (311) and the second upper rack (321) are respectively used for being connected with the first upper rotating shaft (211a) and the second upper rotating shaft (221a) at the ends matched with each other and are connected with the first connecting plate (351); one ends of the first lower rack (312) and the second lower rack (322), which are respectively used for being matched with the first lower rotating shaft (212a) and the second lower rotating shaft (222a), are connected with the second connecting plate (352); the second connecting plate (352) and the third connecting plate (353) are arranged at intervals, and a plurality of elastic assemblies (354) are further arranged in a gap between the second connecting plate (352) and the third connecting plate (353).

9. A concrete mixing system comprising the flow control structure of claim 8, further comprising a mixing device (400), one end of the flow control structure being adapted to be connected to an external water supply, the other end of the flow control structure being connected to the mixing device (400); the stirring device (400) is matched with the first connecting plate (351) for realizing the movement of the driving assembly, thereby realizing the flow switching.

10. A concrete mixing method, based on the concrete mixing system of claim 9, wherein the weight of each component is estimated according to the preparation requirement of concrete; according to the weight of each component, estimating the water requirement of concrete stirring; estimating the total weight of the concrete after the stirring is finished by combining the water demand; mutually matching the stirring device (400) with the first connecting plate (351), and realizing the driving of the first connecting plate (351) through the gravity of the stirring device (400); presetting a first weight, wherein the first weight is less than the total weight, when the weight of the stirring device (400) in the stirring process is greater than the first weight, the instant weight of the stirring device (400) generates a gravity force which is greater than the upward resultant force formed by the supporting force and the elastic force between the elastic components (354), and the first connecting plate (351) moves, so that the flow control of the flow control structure is realized.