CN110587819B

CN110587819B - Quantitative spray gun for concrete admixture

Info

Publication number: CN110587819B
Application number: CN201910987082.6A
Authority: CN
Inventors: 刘冬冬
Original assignee: Jiaxing Liangchuang Technology Co Ltd
Current assignee: Wuhan Tianchen Concrete Co.,Ltd.
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-11-20
Anticipated expiration: 2039-10-17
Also published as: CN110587819A

Abstract

The invention discloses a quantitative spray gun for concrete admixture, which comprises a straight cylinder barrel and a U-shaped cylinder barrel fixedly arranged on the straight cylinder barrel by utilizing a bracket, wherein two pistons are arranged in the straight cylinder barrel in a sliding manner, a spring is connected between the two pistons, the invention utilizes an electric push rod to extrude the pistons, simultaneously utilizes the contact of a power supply sheet and a conducting sheet to further extrude the springs to reach the maximum compression amount, so that the springs can accumulate larger elastic potential energy, spray the additive by relying on the elasticity of the springs, and can immediately supplement pressure to the spring when the elasticity of the spring is insufficient, so that the device is convenient to operate, the operation can be completed by only pressing one button during operation, the opening and closing frequency of the electric push rod is greatly reduced, the electric push rod can be timely and conveniently added into concrete at any time, and the workability during concrete pouring is better stabilized, the problem that the concrete slump is continuously increased due to the fact that the delay time is prolonged is avoided.

Description

Quantitative spray gun for concrete admixture

Technical Field

The invention relates to the field of concrete preparation, in particular to a quantitative spray gun for a concrete admixture.

Background

The concrete admixture is a substance blended for improving and adjusting the performance of concrete, the application of the concrete admixture in engineering is more and more emphasized, the addition of the admixture plays a certain role in improving the performance of the concrete, but the selection, the adding method and the adaptability of the admixture can seriously influence the efficiency of the admixture, a common water reducing agent is taken as an example, the water reducing agent is a concrete admixture capable of reducing the mixing water consumption under the condition of keeping the slump of the concrete basically unchanged, most of the water reducing agent belongs to anionic surfactants, and comprises lignosulfonate, naphthalene sulfonate formaldehyde polymer and the like, the water reducing agent has a dispersing effect on cement particles after being added into the concrete mixture, can improve the working performance of the concrete admixture, reduce the unit water consumption, improve the fluidity of the concrete mixture, or reduce the unit cement consumption, save the cement, and when the temperature is high in summer, the concrete is difficult to pour and pump due to evaporation and loss of a large amount of water, at this moment, the workability of concrete pouring can be effectively improved by adding the water reducing agent, but when the water reducing agent is excessively added, the phenomena of concrete slump increase and stone segregation can be caused, the existing adding mode is that workers directly add the concrete in a dumping mode, the concrete is stirred from a batching station, the effective period is only a few hours after the concrete is transported out, the crack phenomenon of a concrete finished product can be easily caused if the concrete is in a stirring machine, and therefore if the concrete is uniformly sprayed on the concrete while stirring, the mixing time of the admixture can be greatly shortened.

Disclosure of Invention

A quantitative spray gun for concrete admixture comprises a straight cylinder barrel and a U-shaped cylinder barrel fixedly arranged on the straight cylinder barrel by utilizing a support, wherein one end of the U-shaped cylinder barrel is fixedly provided with a sealing cover, the other end of the U-shaped cylinder barrel is communicated with the inner space of the straight cylinder barrel, the outer wall of the sealing cover is fixedly provided with an electric push rod, the end part of the electric push rod extends into the U-shaped cylinder barrel and is fixedly connected with a first piston, the first piston is slidably arranged in the U-shaped cylinder barrel, a third piston and a second piston are slidably arranged in the straight cylinder barrel, a spring is connected between the third piston and the second piston, a first rope ring and a second rope ring are respectively arranged on the side walls of the third piston and the second piston, a rubber rope is tied between the first rope ring and the second rope ring, a tension sensor is arranged on the rubber rope, a slide barrel is further arranged on the third piston, a slide shaft is slidably arranged in the slide barrel, one end of the slide shaft is, the block body is provided with a conducting strip, the piston II is provided with a block body II, the block body is provided with a power supply strip, the front end of the straight cylinder barrel is provided with a spray pipe, an electromagnetic valve is installed in the spray pipe, and the front end of the spray pipe is provided with a spray head.

Preferably, the bottom of the straight cylinder barrel is provided with a left holding rod and a right holding rod.

Preferably, a button for controlling the opening and closing of the electromagnetic valve is arranged on the right holding rod.

Preferably, the storage battery and the controller are embedded in the left holding rod, and the controller is electrically connected with the button, the electric push rod, the tension sensor, the conducting strip and the electromagnetic valve respectively.

Preferably, the bottom of the straight cylinder barrel is also provided with a fluid infusion port.

Preferably, the bottom of the straight cylinder barrel is also provided with a quantitative liquid delivery pump, and a liquid outlet pipe of the quantitative liquid delivery pump is communicated with the inner space of the straight cylinder barrel through a liquid supplementing port.

Compared with the prior art, the invention has the following beneficial effects: the invention utilizes the spray gun to uniformly spray the concrete being stirred, avoids the problem that concrete slump is increased due to the fact that workers add water privately when pouring, simultaneously utilizes the device to enable the workers without technical experience to use additives more accurately and avoid the problem that the additives are used excessively, further utilizes the electric push rod to enable the pistons to extrude the pistons, simultaneously utilizes the contact of the power supply sheet and the conducting sheet to enable the pistons to further extrude the spring to reach the maximum compression amount, enables the spring to accumulate larger elastic potential energy, sprays the additives by means of the elasticity of the spring, can instantly supplement pressure when the elasticity of the spring is insufficient, enables the device to be convenient to operate, can complete the operation by only pressing one button during operation, greatly reduces the opening and closing frequency of the electric push rod, adds quantitative additives into the device through the quantitative liquid delivery pump for storage, can in time and convenient add it into the concrete at any time, the peaceability when better having stabilized concrete placement has avoided the problem that the time delay increases and leads to the concrete slump constant increase.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view showing a detailed structure of the U-shaped cylinder of the present invention;

FIG. 3 is a schematic view of a straight cylinder barrel according to the present invention;

FIG. 4 is an enlarged view of the detailed structure of part A in the present invention.

In the figure: 1. a straight cylinder barrel; 2. a support; 3. a U-shaped cylinder barrel; 4. a right holding rod; 5. a button; 6. a left holding rod; 7. a storage battery; 8. a controller; 9. a quantitative liquid delivery pump; 10. an electric push rod; 11. sealing the cover; 12. a first piston; 13. a first liquid storage cavity; 14. a second piston; 15. a spring; 16. a piston III; 17. a second liquid storage cavity; 18. a fluid infusion port; 19. a spray head; 20. a nozzle; 21. a rope ring I; 22. a bungee cord; 23. a tension sensor; 24. a second rope ring; 25. a second spring; 26. a slide cylinder; 27. a slide shaft; 28. a first block body; 29. a conductive sheet; 30. a power supply sheet; 31. a second block body; 32. an electromagnetic valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a quantitative spray gun for concrete admixture comprises a straight cylinder barrel 1 and a U-shaped cylinder barrel 3 fixedly arranged on the straight cylinder barrel 1 through a support 2, a sealing cover 11 is fixedly arranged at one end of the U-shaped cylinder barrel 3, the other end of the U-shaped cylinder barrel 3 is communicated with the inner space of the straight cylinder barrel 1, an electric push rod 10 is fixedly arranged on the outer wall of the sealing cover 11, the electric push rod 10 is of a type with strong self-locking force, the end portion of the electric push rod 10 extends into the U-shaped cylinder barrel 3 and is fixedly connected with a piston I12, the piston I12 is slidably arranged in the U-shaped cylinder barrel 3, a piston III 16 and a piston II 14 are slidably arranged in the straight cylinder barrel 1, a spring 15 is connected between the piston III 16 and the piston II 14, a rope ring I21 and a rope ring II 24 are respectively arranged on the side walls of the piston III 16 and the piston II 14, a rubber rope 22 is tied between the rope I21 and the rope II 24, a tension sensor 23 is arranged on the, a sliding shaft 27 is arranged in the sliding cylinder 26 in a sliding manner, one end of the sliding shaft 27 is elastically connected with the bottom of the sliding cylinder 26 through a second spring 25, the other end of the sliding shaft 27 is fixedly connected with a first block 28, a conducting strip 29 is arranged on the block 28, a second block 31 is arranged on the piston 14, a power supply sheet 30 is arranged on the block 31, a spray pipe 20 is arranged at the front end of the straight cylinder barrel 1, an electromagnetic valve 32 is arranged in the spray pipe 20, a spray head 19 is arranged at the front end of the spray pipe 20, a left holding rod 6 and a right holding rod 4 are arranged at the bottom of the straight cylinder barrel 1, a button 5 for controlling the electromagnetic valve 32 to open and close is arranged on the right holding rod 4, a storage battery 7 and a controller 8 are embedded in the left holding rod 6, the controller 8 is respectively and electrically connected with the button 5, an electric push rod 10, a tension sensor 23, the conducting strip 29 and the electromagnetic valve 32, a liquid replenishing port 18 and, the liquid outlet pipe of the quantitative liquid delivery pump 9 is communicated with the inner space of the straight cylinder barrel 1 through a liquid supplementing port 18. .

One specific use mode of the invention is as follows: in the invention, a first liquid storage cavity 13 is formed between a first piston 12 and a second piston 14, the first liquid storage cavity 13 is filled with water liquid, a second liquid storage cavity 17 is formed between a piston 3 and an electromagnetic valve 32, an additive is added into the second liquid storage cavity 17 by using a quantitative liquid delivery pump 9, after the addition is finished, an electric push rod 10 is started to enable the piston 12 to extrude the water liquid in the first liquid storage cavity 13, the water liquid continuously pushes the second piston 14, a spring 15 and a third piston 16 to move leftwards until the third piston 16 cannot move, the second piston 14 continuously extrudes the spring and moves leftwards, when a power supply sheet 30 is contacted with a conducting sheet 29, the spring 15 reaches the maximum compression amount, the electric push rod 10 stops moving and enables the device to be static by using self-locking force of the electric push rod 10, when concrete needs to be sprayed, the electromagnetic valve 32 is opened by pressing a button 5, the spring 15 starts to release elastic force and extrudes the additive to, an operator can release the button at any time to close the electromagnetic valve 32 to stop spraying, along with the release of the elastic force of the spring 15, the water pressure in the liquid storage cavity II 17 can not meet the spraying strength gradually, at the moment, the relative distance side length between the piston II 14 and the piston III 16 is enabled due to the extension of the spring 15, meanwhile, the detection numerical value of the tension sensor 23 on the rubber rope 22 is enabled to be increased, when the numerical value on the tension sensor reaches the preset numerical value input in advance on the controller, the controller controls the electric push rod 10 to start again, the spring 15 is squeezed to the limit state again, and the elastic potential energy is enabled to be obtained again, so that the spraying work can be conducted next time.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A quantitative spray gun for concrete admixture comprises a straight cylinder barrel (1) and a U-shaped cylinder barrel (3) fixedly arranged on the straight cylinder barrel (1) by utilizing a support (2), wherein one end of the U-shaped cylinder barrel (3) is fixedly provided with a sealing cover (11), the other end of the U-shaped cylinder barrel (3) is communicated with the inner space of the straight cylinder barrel (1), the outer wall of the sealing cover (11) is fixedly provided with an electric push rod (10), the end part of the electric push rod (10) extends into the U-shaped cylinder barrel (3) and is fixedly connected with a piston I (12), the piston I (12) is slidably arranged in the U-shaped cylinder barrel (3), a piston III (16) and a piston II (14) are slidably arranged in the straight cylinder barrel (1), a spring (15) is connected between the piston III (16) and the piston II (14), the side walls of the piston III (16) and the piston II (14) are respectively provided with a rope ring I (21) and a rope, a rubber rope (22) is tied between the rope ring I (21) and the rope ring II (24), a tension sensor (23) is arranged on the rubber rope (22), a sliding barrel (26) is further installed on the piston III (16), a sliding shaft (27) is arranged in the sliding barrel (26) in a sliding mode, one end of the sliding shaft (27) is elastically connected with the bottom of the sliding barrel (26) through a spring II (25), the other end of the sliding shaft (27) is fixedly connected with a block body I (28), a conducting strip (29) is arranged on the block body (28), a block body II (31) is installed on the piston II (14), a power supply sheet (30) is arranged on the block body (31), a spray pipe (20) is arranged at the front end of the straight cylinder barrel (1), an electromagnetic valve (32) is installed in the spray pipe (20), a spray head (19) is arranged at the front end of the spray pipe (20), and a quantitative liquid conveying pump (9) is further, the liquid outlet pipe of the quantitative liquid delivery pump (9) is communicated with the inner space of the straight cylinder barrel (1) through a liquid supplementing port (18).

2. A dosing lance for concrete admixtures according to claim 1 wherein: the bottom of the straight cylinder barrel (1) is provided with a left holding rod (6) and a right holding rod (4).

3. A dosing lance for concrete admixtures according to claim 2 wherein: the right holding rod (4) is provided with a button (5) for controlling the opening and closing of the electromagnetic valve (32).

4. A dosing lance for concrete admixtures according to claim 2 wherein: the battery (7) and the controller (8) are embedded in the left holding rod (6), and the controller (8) is electrically connected with the button (5), the electric push rod (10), the tension sensor (23), the conducting strip (29) and the electromagnetic valve (32) respectively.

5. A dosing lance for concrete admixtures according to claim 1 wherein: the bottom of the straight cylinder barrel (1) is also provided with a fluid infusion port (18).