Water adding mechanism for premixed concrete production

Abstract

The utility model relates to a water adding mechanism for premixed concrete production, which comprises a stirrer and a water inlet pipe, the water inlet pipe is communicated into the stirrer, one end of the water inlet pipe is fixedly connected with a spray head, a cavity is arranged in the spray head, one end of the cavity is communicated with the water inlet pipe, the other end of the cavity is provided with a nozzle, and an extendable pressing sheet is attached to the nozzle. A pull rod is fixedly connected to the pressing piece and is in sliding connection with the cavity. According to the water adding mechanism for premixed concrete production, the extensible pressing piece is attached to the nozzle so that the nozzle can be in the closed and open states, concrete materials in stirring cannot enter the nozzle during closing, and the situation that the nozzle is blocked, and the water outlet efficiency is affected is avoided.

Description

Technical Field

[0001] The utility model relates to a water adding mechanism for concrete production, in particular to a water adding mechanism for ready-mixed concrete production. Background Art

[0002] Concrete refers to an artificial stone made mainly of cement, in combination with water, sand, stones, and when necessary, chemical admixtures and mineral admixtures, proportioned appropriately, and uniformly stirred, densely formed, and cured and hardened. Concrete is mainly divided into two stages and states: the plastic state before setting and hardening, namely fresh concrete or concrete mixture; the hard state after hardening, namely hardened concrete or concrete.

[0003] In the process of preparing concrete, it is necessary to first process the aggregate raw materials, and then convey the qualified aggregate raw materials after processing into the mixer for mixing and stirring. When cement and aggregates are stirred in the mixer, water is added into the mixer through a water outlet. When the water outlet does not work, the water outlet is easily blocked by sand and stones, affecting the water outlet efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a water adding mechanism for ready-mixed concrete production, which is used to solve the problem that when the water outlet of the existing water adding mechanism for ready-mixed concrete production does not work, the water outlet is easily blocked by sand and stones, affecting the water outlet efficiency.

[0005] To solve the above problems, the utility model provides a water adding mechanism for ready-mixed concrete production, including a mixer and a water inlet pipe. The water inlet pipe leads into the mixer. One end of the water inlet pipe is fixedly connected with a spray head. A cavity is arranged in the spray head. One end of the cavity is communicated with the water inlet pipe, and the other end of the cavity is provided with a nozzle. A retractable pressing piece is attached to the nozzle. A pull rod is fixedly connected to the pressing piece, and the pull rod is slidably connected to the cavity.

[0006] The water adding mechanism for ready-mixed concrete production provided by the utility model further has the following technical features:

[0007] Further, the spray head is provided with a groove adapted to the pressing piece at one end of the nozzle.

[0008] Further, the other end of the pull rod is fixedly connected with a pressing handle. A spring is sleeved on the pull rod. One end of the spring abuts against the pressing handle, and the other end of the spring abuts against one end of the nozzle in the cavity.

[0009] Further, the water inlet pipe is divided into two branch pipes, and the two branch pipes respectively extend into both sides of the top of the mixer. A flow control valve is fixedly connected to the water inlet pipe.

[0010] Further, a plurality of spray heads are linearly and arrayedly arranged on the branch pipes.

[0011] Further, the spraying directions of the nozzles on the two branch pipes cross each other.

[0012] The utility model has the following beneficial effects: The water adding mechanism for premixed concrete production in this application uses a press piece that can extend and fit on the nozzle to keep the nozzle in a closed and open state. When it is closed, the concrete materials during stirring will not enter the nozzle, avoiding nozzle blockage and affecting the water output efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a right - view sectional axonometric schematic diagram of the water adding mechanism for premixed concrete production in an embodiment of the utility model;

[0014] Figure 2 is the water adding mechanism for premixed concrete production in an embodiment of the utility model Figure 1 magnified view of node A;

[0015] Figure 3 is an axonometric schematic diagram of the water adding mechanism for premixed concrete production in an embodiment of the utility model.

[0016] (1 - mixer, 2 - water inlet pipe, 3 - nozzle, 4 - cavity, 5 - spray nozzle, 6 - press piece, 7 - pull rod, 8 - press handle, 9 - spring, 10 - branch pipe, 11 - flow control valve) DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0018] As Figures 1 to 3 shown in the embodiment of the water adding mechanism for premixed concrete production of the present utility model, the water adding mechanism for premixed concrete production includes a mixer 1 and a water inlet pipe 2. The water inlet pipe 2 leads into the mixer 1. One end of the water inlet pipe 2 is fixedly connected with a nozzle 3. A cavity 4 is arranged inside the nozzle 3. One end of the cavity 4 is communicated with the water inlet pipe 2, and the other end of the cavity 4 is provided with a spray nozzle 5. A press piece 6 that can extend is attached to the spray nozzle 5. A pull rod 7 is fixedly connected to the press piece 6, and the pull rod 7 is slidably connected with the cavity 4.

[0019] Specifically, connect the water inlet pipe 2 to a pressure pipeline or a water pump. After the raw materials of the concrete are put into the mixer, the batching control program starts to inject water into the mixer 1. The water reaches the position of the nozzle 3 through the water inlet pipe 2. Under the action of the water pressure, the press piece 6 attached to the spray nozzle 5 is pushed, causing the press piece 6 to extend. The water flows out from the spray nozzle 5. After the water volume reaches the control requirement, the water supply is stopped. The water pressure disappears and the press piece 6 retracts. The press piece 6 is used to keep the spray nozzle 5 in a closed and open state. When it is closed, the raw materials of the concrete cannot enter the spray nozzle 5, avoiding blockage of the spray nozzle 5 and affecting the water output efficiency.

[0020] In an embodiment of the present application, preferably, the spray head 3 is provided with a groove adapted to the pressing piece 6 at one end of the nozzle 5 for sealing the nozzle 5 with the pressing piece 6.

[0021] In an embodiment of the present application, preferably, the other end of the pull rod 7 is fixedly connected with a pressing handle 8. A spring 9 is sleeved on the pull rod 7. One end of the spring 9 abuts against the pressing handle 8, and the other end of the spring 9 abuts against one end of the nozzle 5 in the cavity 4, for the pressing piece 6 to be pushed out under the action of water pressure and for the pressing piece 6 to retract and closely adhere to the nozzle 5 under the action of the spring 9 when the water pressure disappears.

[0022] In an embodiment of the present application, preferably, the water inlet pipe 3 is divided into two branch pipes 10. The two branch pipes 10 respectively extend into both sides of the top of the mixer 1. A flow control valve 11 is fixedly connected to the water inlet pipe 2 for the water inlet pipe 2 to disperse water inlet, and the flow control valve 11 is used to control the water inflow to meet the requirements of the mixing ratio. It should be noted that the flow control valve 11 adopts an existing technical product.

[0023] In an embodiment of the present application, preferably, a plurality of spray heads 3 are linearly arrayed on the branch pipes 10, so that the water addition during concrete mixing can cover a wider area, which is beneficial to the mixing of concrete.

[0024] In an embodiment of the present application, preferably, the spraying directions of the spray heads 3 on the two branch pipes 10 cross each other for the water addition area to be more uniform, which is beneficial to the mixing of concrete.

[0025] In summary, for the water addition mechanism for premixed concrete production in the above embodiments of the present utility model, specifically, the water inlet pipe 2 is connected to a pressure pipeline or a water pump. After the raw materials of concrete are put into the mixer 1, the batching control program opens the flow control valve 11 to inject water into the mixer 1. The water reaches the position of the spray head 3 through the water inlet pipe 2. Under the action of water pressure, the pressing piece that fits with the nozzle 5 is pushed, so that the pressing piece 6 extends out. The water pressure overcomes the elastic force of the spring 9, and the pull rod 7 drives the pressing handle 8 to squeeze the spring 9. The water flow sprays out from the nozzle 5, and the water flow hits the pressing piece 6 to form a disc-shaped water flow. Until the water volume reaches the requirement of the mixing ratio, the flow control valve 11 stops supplying water, the water pressure disappears, and under the action of the elastic force of the spring 9, the pressing handle 8 is pushed to reset. The pressing handle 8 drives the pull rod 7 and the pressing piece 6 to reset, and the pressing piece 6 retracts into the groove. By using the pressing piece 6 under the action of the spring 9 and water pressure, the nozzle 5 is in a closed and open state. When it is closed, the raw materials of concrete cannot enter the nozzle 5, avoiding the blockage of the nozzle 5 and affecting the water outlet efficiency.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water adding mechanism for ready-mixed concrete production, comprising a mixer and a water inlet pipe, wherein the water inlet pipe leads into the mixer, and one end of the water inlet pipe is fixedly connected to a nozzle, characterized in that: A cavity is provided in the nozzle, one end of the cavity is connected to the water inlet pipe, the other end of the cavity is provided with a nozzle, an extendable pressing sheet is attached to the nozzle, a pull rod is fixedly connected to the pressing sheet, and the pull rod is slidably connected to the cavity.

2. The water adding mechanism for ready-mixed concrete production according to claim 1, characterized in that: The spray head is provided with a groove adapted to the pressing sheet at one end of the nozzle.

3. The water adding mechanism for ready-mixed concrete production according to claim 2, characterized in that: The other end of the pull rod is fixedly connected with a pressing handle, and a spring is sleeved on the pull rod. One end of the spring contacts the pressing handle, and the other end of the spring contacts one end of the nozzle in the cavity.

4. The water adding mechanism for ready-mixed concrete production according to claim 1, characterized in that: The water inlet pipe is divided into two branch pipes, and the two branch pipes extend into two sides of the top of the mixer respectively. A flow control valve is fixedly connected to the water inlet pipe.

5. The water adding mechanism for ready-mixed concrete production according to claim 4, characterized in that: A plurality of nozzles are arranged in a linear array on the branch pipe.

6. The water adding mechanism for ready-mixed concrete production according to claim 5, characterized in that: The water spraying directions of the nozzles on the two branch pipes are crossed.

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