Concrete liquid additive filling device

Abstract

The utility model relates to the technical field of filling, in particular to a concrete liquid additive filling device. The concrete liquid additive filling device comprises a pressurizing cylinder, an upper connector and a lower connector which are symmetrically distributed up and down are formed in the pressurizing cylinder, and self-locking valve sets are installed on the upper connector and the lower connector correspondingly. A piston rod is inserted into the pressurizing cylinder, and a driving assembly is mounted on the pressurizing cylinder; and a curved hook rod and an L-shaped push rod are mounted on the driving assembly. According to the concrete liquid additive filling device, the fixed-volume additive is accurately pressed into the stirring machine through the driving assembly, the process is strictly carried out alternately and intermittently according to the stroke of the piston, the amount of the additive discharged every time is determined by the stroke of the piston and the sectional area of the pressurizing cylinder, high-precision quantitative filling is achieved, and the working efficiency is improved. The additive can be dispersed and controlled in dosage, rapid dispersion and uniform mixing of the additive in a concrete material are greatly promoted, and local enrichment possibly caused by continuous injection is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to a concrete liquid additive filling device. Background Art

[0002] In the concrete production process, the precise and uniform addition of liquid additives (such as water reducers, retarders, and early strength agents) is a key step in ensuring concrete performance (such as slump), setting time, and ultimate strength. Traditional methods of adding additives have the following technical bottlenecks:

[0003] 1. Relying on the operator's experience, the measurement error is large, which can easily lead to fluctuations in concrete quality and make it difficult to meet the precise proportion requirements of high-performance concrete;

[0004] 2. The continuity of injection or the poor timing of mixing with materials can easily lead to uneven distribution of additives in the concrete, forming local enrichment or depletion areas, which seriously affect the overall uniformity and performance of the concrete.

[0005] Therefore, it is necessary to provide a new concrete liquid additive filling device to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a concrete liquid additive filling device.

[0007] The concrete liquid additive filling device provided by the utility model includes a pressure cylinder, on which an upper interface and a lower interface symmetrically distributed up and down are opened, and both the upper interface and the lower interface are equipped with a self-locking valve group;

[0008] A piston rod is inserted into the pressurizing cylinder, and a piston is fixedly mounted on the rod head of the piston rod and is slidably connected to the pressurizing cylinder. A driving assembly for driving the piston rod to slide back and forth is mounted on the pressurizing cylinder;

[0009] A curved hook rod and an L-shaped push rod are installed on the driving component, and the self-locking valve group of the upper interface and the lower interface is alternately opened and closed by the curved hook rod and the L-shaped push rod.

[0010] Preferably, the self-locking valve group below includes a butt joint pipe, on which two symmetrically distributed A-side pipes and B-side pipes that are interconnected with the butt joint pipe are fixedly installed, the A-side pipe and the B-side pipe forming a transverse pipe, and a slidably connected valve column is inserted into the transverse pipe, the valve column is provided with a liquid drop hole, and a spring is fixedly installed at one end of the valve column away from the liquid drop hole, and the other end of the spring is fixedly connected to the inner edge of the B-side pipe;

[0011] The springs and valve columns in the upper self-locking valve group and the lower self-locking valve group are arranged in a mirror image.

[0012] Preferably, the butt joints in the two groups of self-locking valve groups are fixedly mounted on the upper interface and the lower interface respectively.

[0013] Preferably, the driving assembly includes a mounting frame, a servo motor is fixedly mounted on the mounting frame through a frame, and a rotating rod is fixedly mounted on the output end of the servo motor, a reciprocating threaded portion is provided on the rotating rod, and a threaded connection seat is threadedly sleeved on the reciprocating threaded portion, and the other end of the piston rod is fixedly connected to the threaded connection seat.

[0014] Preferably, a rotating bracket is fixedly mounted on the pressurizing cylinder, and the rotating bracket is rotatably connected to the other end of the rotating rod.

[0015] Preferably, the curved hook rod is fixedly mounted on the upper surface of the threaded connection seat, and the hook rod head of the curved hook rod corresponds to the B side pipe in the upper self-locking valve group.

[0016] Preferably, the L-shaped push rod is fixedly mounted on the lower surface of the threaded connection seat, and the rod head of the L-shaped push rod passes through the sliding cavity opened by the mounting frame and corresponds to the A-side pipe in the self-locking valve group below.

[0017] Compared with the related art, the concrete liquid additive filling device provided by the utility model has the following beneficial effects:

[0018] In the utility model, a driving component is used to accurately press a fixed volume of additive into the mixer. This process is carried out alternately and intermittently in strict accordance with the piston stroke. The amount of additive discharged each time is determined by the piston stroke and the cross-sectional area of ​​the pressurizing cylinder, thereby achieving high-precision quantitative filling. The additive can be added in discrete and controllable doses, which greatly promotes the rapid dispersion and uniform mixing of the additive in the concrete material and avoids local enrichment that may be caused by continuous injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of a preferred embodiment of the concrete liquid additive filling device provided by the utility model;

[0020] Figure 2 for Figure 1 A schematic structural diagram of the pressurized cylinder shown;

[0021] Figure 3 for Figure 1 The cross-sectional structural diagram of the self-locking valve group shown below;

[0022] Figure 4 for Figure 1 The cross-sectional structural diagram of the upper self-locking valve group is shown;

[0023] Figure 5 for Figure 4 The cross-sectional structural diagram of the butt-jointed pipe is shown;

[0024] Figure 6 for Figure 1 A schematic structural diagram of the drive assembly shown;

[0025] Figure 7 for Figure 6 Schematic diagram of the structure of the curved hook rod and L-shaped push rod shown.

[0026] Numbers in the figure: 1. Pressurizing cylinder; 1a. Upper interface; 1b. Lower interface; 2. Self-locking valve group; 21. Docking tube; 22. Side tube A; 23. Side tube B; 24. Valve column; 24a. Drop hole; 25. Spring; 3. Piston rod; 31. Piston; 4. Drive assembly; 41. Mounting bracket; 41a. Sliding cavity; 42. Servo motor; 43. Rotating rod; 431. Reciprocating threaded portion; 432. Rotating bracket; 44. Threaded connection seat; 5. Curved hook rod; 6. L-shaped push rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0029] See also Figures 1 to 6 The embodiment of the present invention provides a concrete liquid additive filling device, which includes a pressurizing cylinder 1, a self-locking valve group 2 and a driving component 4.

[0030] In the embodiments of the present invention, please refer to Figures 1 to 6 The pressurizing cylinder 1 is provided with an upper interface 1a and a lower interface 1b which are symmetrically distributed up and down, and both the upper interface 1a and the lower interface 1b are installed with a self-locking valve group 2, and the lower self-locking valve group 2 includes a butt-joint pipe 21, on which two symmetrically distributed A-side pipes 22 and B-side pipes 23 which are interconnected are fixedly installed. The A-side pipe 22 and the B-side pipe 23 constitute a transverse pipe, and a slidingly connected valve column 24 is inserted into the transverse pipe, and a liquid drop hole 24a is provided on the valve column 24, and a spring 25 is fixedly installed on one end of the valve column 24 away from the liquid drop hole 24a, and the other end of the spring 25 is fixedly connected to the inner ring of the B-side pipe 23, and the spring 25 and the valve column 24 in the upper self-locking valve group 2 and the lower self-locking valve group 2 are mirror-imaged, and the butt-joint pipes 21 in the two groups of self-locking valve groups 2 are fixedly mounted on the upper interface 1a and the lower interface 1b respectively;

[0031] A piston rod 3 is inserted into the pressure cylinder 1, and a piston 31 that is slidably connected to the pressure cylinder 1 is fixedly installed on the rod head of the piston rod 3. A driving assembly 4 for driving the piston rod 3 to slide back and forth is installed on the pressure cylinder 1, and a curved hook rod 5 and an L-shaped push rod 6 are installed on the driving assembly 4. The curved hook rod 5 is fixedly installed on the upper surface of the threaded connection seat 44, and the hook rod head of the curved hook rod 5 corresponds to the B side tube 23 in the upper self-locking valve group 2, and the L-shaped push rod 6 is fixedly installed on the lower surface of the threaded connection seat 44, and the rod head of the L-shaped push rod 6 passes through the sliding cavity 41a opened by the mounting frame 41 and corresponds to the A side tube 22 in the lower self-locking valve group 2. The self-locking valve group 2 of the upper interface 1a and the lower interface 1b are alternately opened and closed by the curved hook rod 5 and the L-shaped push rod 6.

[0032] The butt joint pipe 21 on the lower interface 1b is fixedly connected to the material adding port of the mixer, and the butt joint pipe 21 on the upper interface 1a is connected to the liquid injection storage tank.

[0033] It should be noted that: in the initial state, under the action of the spring 25, the liquid drop hole 24a of the valve stem 24 is staggered with the inner pipe of the butt joint 21, thereby playing the role of sealing the butt joint 21;

[0034] When the threaded connection seat 44 slides away from the pressure cylinder 1 under the action of the driving assembly 4, the hook rod head of the curved hook rod 5 is inserted into the B side pipe 23 in the upper self-locking valve group 2 (the upper self-locking valve group 2 is as shown in FIG. Figure 4 As shown), the valve stem 24 is pushed to drive the valve stem 24 to compress the spring 25 until the drop hole 24a corresponds to the docking tube 21, and the L-shaped push rod 6 does not contact the self-locking valve group 2 below, so the docking tube 21 below is in a sealed state. At the same time, the threaded connection seat 44 drives the piston 31 to slide toward the open end of the pressurizing cylinder 1, so that negative pressure is formed in the pressurizing cylinder 1, so that the liquid additive in the liquid injection storage tank automatically enters the pressurizing cylinder 1;

[0035] When the threaded connection seat 44 slides toward the pressurizing cylinder 1 under the action of the driving assembly 4, the hook rod head of the curved hook rod 5 slides out of the B side pipe 23 in the upper self-locking valve group 2, so that the valve column 24 seals the butt joint pipe 21 under the action of the spring 25, so that the upper butt joint pipe 21 is in a sealed state, and the L-shaped push rod 6 is inserted into the lower A side pipe 22 at this time (the lower self-locking valve group 2 is as shown in FIG. Figure 3 As shown), the valve rod 24 is pushed to drive the valve rod 24 to compress the spring 25 until the liquid drop hole 24a corresponds to the docking tube 21, so that the lower docking tube 21 is in a connected state. At the same time, the threaded connection seat 44 drives the piston 31 to slide into the pressurizing cylinder 1 so that the liquid additive in the pressurizing cylinder 1 is injected into the mixing tank through the lower docking tube 21.

[0036] Among them, the upper and lower self-locking valve groups 2 are automatically opened and closed alternately, so that the concrete liquid additive is automatically and quantitatively added intermittently, and combined with the mixing of the mixer, the uniformity of the mixing of the concrete liquid additive and the material is greatly improved.

[0037] In the embodiments of the present invention, please refer to Figures 1 to 6 The driving assembly 4 includes a mounting frame 41, on which a servo motor 42 is fixedly mounted through a frame, and a rotating rod 43 is fixedly mounted on the output end of the servo motor 42, and a reciprocating threaded portion 431 is provided on the rotating rod 43, and a threaded connection seat 44 is threadedly sleeved on the reciprocating threaded portion 431, and the other end of the piston rod 3 is fixedly connected to the threaded connection seat 44.

[0038] It should be noted that turning on the servo motor 42 can drive the rotating rod 43 to rotate, so that the threaded connection seat 44 on the reciprocating threaded portion 431 can slide back and forth along the reciprocating threaded portion 431, so that the threaded connection seat 44 pushes the piston rod 3 to drive the piston 31 to slide back and forth in the pressurizing cylinder 1.

[0039] It is worth noting that, since the threaded connection seat 44 is restricted by the piston rod 3 and the piston 31 , the threaded connection seat 44 will not swing as the reciprocating threaded portion 431 rotates.

[0040] In this embodiment, the mounting bracket 41 is mounted on the mixer housing to maintain the stability of the driving assembly 4 .

[0041] Furthermore, a rotating bracket 432 is fixedly mounted on the pressurizing cylinder 1 , and the rotating bracket 432 is rotatably connected to the other end of the rotating rod 43 . The provision of the rotating bracket 432 improves the stability of the rotating rod 43 during rotation.

[0042] In the present application, when the threaded connection seat 44 drives the piston 31 to move outward (inhalation stroke), the curved hook rod 5 automatically hooks open the upper self-locking valve group 2 (connected to the additive storage tank), and at the same time, the L-shaped push rod 6 disengages from the lower self-locking valve group 2 (closes the discharge port), and the negative pressure sucks in a constant volume of additive. When the threaded connection seat 44 drives the piston 31 to move inward (discharge stroke), the curved hook rod 5 is automatically released, and the upper self-locking valve group 2 is closed; at the same time, the L-shaped push rod 6 automatically pushes open the lower self-locking valve group 2 (connected to the mixer), and the constant volume of additive is accurately pressed into the mixer. This process is carried out alternately and intermittently in strict accordance with the piston stroke. The amount of additive discharged each time is determined by the stroke of the piston 31 and the cross-sectional area of ​​the pressurizing cylinder 1, realizing high-precision quantitative filling, so that the additive can be injected in discrete and controllable doses at a specific time when the mixer is running (usually when the material is in a better mixed state), which greatly promotes the rapid dispersion and uniform mixing of the additive in the concrete material, and avoids local enrichment that may be caused by continuous injection.

[0043] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0044] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A concrete liquid additive filling device, characterized in that: It comprises a pressurizing cylinder (1), the pressurizing cylinder (1) is provided with an upper interface (1a) and a lower interface (1b) symmetrically distributed up and down, and both the upper interface (1a) and the lower interface (1b) are equipped with a self-locking valve group (2); A piston rod (3) is inserted into the pressurizing cylinder (1), and a piston (31) is fixedly mounted on the rod head of the piston rod (3) and is slidably connected to the pressurizing cylinder (1). A driving assembly (4) for driving the piston rod (3) to slide back and forth is mounted on the pressurizing cylinder (1); A curved hook rod (5) and an L-shaped push rod (6) are mounted on the driving assembly (4), and the self-locking valve group (2) of the upper interface (1a) and the lower interface (1b) are alternately opened and closed by the curved hook rod (5) and the L-shaped push rod (6).

2. The concrete liquid additive filling device according to claim 1, characterized in that: The self-locking valve group (2) below includes a butt-joint pipe (21), on which two symmetrically distributed A-side pipes (22) and B-side pipes (23) are fixedly installed. The A-side pipe (22) and the B-side pipe (23) are in communication with the butt-joint pipe (21), and a slidingly connected valve column (24) is inserted into the transverse pipe. A liquid drop hole (24a) is provided on the valve column (24), and a spring (25) is fixedly installed at one end of the valve column (24) away from the liquid drop hole (24a), and the other end of the spring (25) is fixedly connected to the inner edge of the B-side pipe (23); The spring (25) and the valve column (24) in the upper self-locking valve group (2) and the lower self-locking valve group (2) are arranged in a mirror image.

3. The concrete liquid additive filling device according to claim 2, characterized in that: The butt joints (21) in the two sets of self-locking valve groups (2) are fixedly mounted on the upper interface (1a) and the lower interface (1b), respectively.

4. The concrete liquid additive filling device according to claim 1, characterized in that: The driving assembly (4) comprises a mounting frame (41), a servo motor (42) is fixedly mounted on the mounting frame (41) via a frame, and a rotating rod (43) is fixedly mounted on the output end of the servo motor (42), a reciprocating threaded portion (431) is provided on the rotating rod (43), and a threaded connection seat (44) is sleeved on the reciprocating threaded portion (431), and the other end of the piston rod (3) is fixedly connected to the threaded connection seat (44).

5. The concrete liquid additive filling device according to claim 4, characterized in that: A rotating bracket (432) is fixedly mounted on the pressurizing cylinder (1), and the rotating bracket (432) is rotatably connected to the other end of the rotating rod (43).

6. The concrete liquid additive filling device according to claim 4, characterized in that: The curved hook rod (5) is fixedly mounted on the upper surface of the threaded connection seat (44), and the hook rod head of the curved hook rod (5) corresponds to the B side pipe (23) in the upper self-locking valve group (2).

7. The concrete liquid additive filling device according to claim 4, characterized in that: The L-shaped push rod (6) is fixedly mounted on the lower surface of the threaded connection seat (44), and the rod head of the L-shaped push rod (6) passes through the sliding cavity (41a) opened by the mounting frame (41) and corresponds to the A side pipe (22) in the lower self-locking valve group (2).

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