Cement paste spraying device
By optimizing the hopper structure and material selection, the problem of clogging caused by cement slurry residue in the spray gun was solved, achieving a highly efficient, uniform, and convenient spraying effect for cement slurry.
Patent Information
- Application Number
- CN202520222451.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing spray guns often leave cement slurry residue after cement slurry spraying operations, which is difficult to clean and causes blockage inside the spray gun.
A cement slurry spraying device including a hopper and a spray gun was designed. The hopper has an open bottom structure, and the air jet pipe extends into the bottom of the inner side of the hopper. The air jet pipe is made of stainless steel and designed as a cone. The spray gun is detachably connected to the hopper and is equipped with a flap and a limiting plate to prevent cement slurry leakage and residue.
It effectively reduces cement residue, prevents internal blockage of the spray gun, improves spraying efficiency and quality, and facilitates cleaning and maintenance.
Smart Images
Figure CN223902072U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cement paste spraying technical field, concretely relates to a cement paste spraying device. BACKGROUND
[0002] Cement paste spraying technology is widely used in people's daily life and industrial production, aiming at improving the appearance of the goods or enhancing its moisture-proof, anticorrosive performance. This process is mainly completed by using a spray gun, which can ensure that the cement paste is evenly covered on the target surface, thereby achieving high-quality spraying effect.
[0003] At present, when spraying cement paste through a spray gun, the internal structure of the spray gun is relatively complex, which leads to a large amount of cement paste remaining in the spray gun after the spraying operation is completed. At the same time, the remaining cement paste is difficult to clean due to high viscosity, fast drying speed, and poor solubility, which causes a certain degree of blockage in the internal part of the spray gun. Therefore, a cement paste spraying device is proposed to solve the above problems. SUMMARY
[0004] The technical problem to be solved by the utility model is that, in view of the deficiencies of the prior art, a cement paste spraying device with the advantages of effectively reducing cement paste residue and preventing internal blockage of the spray gun is provided to solve the problem that the internal part of the existing spray gun is prone to remaining cement paste after the spraying operation is completed and is difficult to clean, which leads to blockage of the spray gun.
[0005] The technical solution adopted by the utility model to solve the technical problem is: a cement paste spraying device, comprising a hopper, a spray gun is installed in communication at the bottom of the hopper, the bottom of the hopper on both sides is designed in an open structure, a spray nozzle is screw-mounted at the bottom of one side of the hopper, a limiting ring is fixedly installed at the bottom of the other side of the hopper, and a hand screw nut is rotatably installed on the limiting ring.
[0006] Further, a baffle is fixedly installed on one side of the top inside of the hopper, and a flap is rotatably installed on the side, away from the hopper, of the baffle through a spring hinge.
[0007] Further, a handle is fixedly installed on one side of the outer wall of the hopper.
[0008] Further, a limiting plate is fixedly installed on the inner wall of the hopper on the end face of the flap, away from the baffle, the lower end face of the limiting plate is in contact with the upper end face of the flap but is not fixedly connected, and the lower end face of the limiting plate is flush with the upper end face of the baffle.
[0009] Further, the air injection pipe is made of stainless steel, the outer diameter of the air injection pipe is smaller than the inner diameter of the bottom of the hopper, an outer threaded sleeve is fixedly installed on the outer wall of the air injection pipe, and the end of the air injection pipe extending into the hopper is designed in a conical structure and has a gap between the conical end of the air injection pipe and the nozzle.
[0010] Further, the outer threaded sleeve is welded on the air injection pipe on the side opposite to the control valve of the hopper, and the outer threaded sleeve is in threaded connection with the hand screw nut.
[0011] Further, the outer wall of the end of the air pipe joint away from the control valve is provided with a stepped annular protrusion, and the air pipe joint is in communication with the gas pressurizing mechanism through the gas conveying pipe.
[0012] Compared with the prior art, the cement slurry spraying device has the following beneficial effects:
[0013] The open bottom structure of the hopper and the installation mode of the air injection pipe extending into the inside bottom of the hopper make the cement slurry flow more smoothly during spraying, and reduce the accumulation and residue of the cement slurry in the device.
[0014] The conical end of the air injection pipe is designed to have a gap with the nozzle, which helps the cement slurry to be smoothly sprayed under the action of air pressure, and further reduces the residue of the cement slurry in the air injection pipe.
[0015] In summary, the cement slurry spraying device optimizes the structure and material selection of the device, effectively reduces the residue of the cement slurry and prevents the internal blockage of the cement slurry spraying device, improves the efficiency and quality of the cement slurry spraying operation, and facilitates the cleaning and maintenance of the device. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a structural schematic view of an embodiment of the cement slurry spraying device;
[0017] Figure 2 is Figure 1A sectional view of the embodiment shown;
[0018] Figure 3 For Figure 2 A schematic view of a partial enlarged structure;
[0019] Figure 4 For Figure 1 A schematic view of the structure of the hopper of the embodiment shown;
[0020] Figure 5 For Figure 1 An exploded view of the spray gun of the embodiment shown;
[0021] Explanation of reference numerals in the drawings:
[0022] 1, hopper; 11, baffle; 111, spring hinge; 12, flap; 13, limiting plate; 14, nozzle; 15, limiting ring; 151, hand screw nut; 16, handle; 2, spray gun; 21, air jet pipe; 211, outer threaded sleeve; 22, control valve; 23, air pipe joint. DETAILED DESCRIPTION
[0023] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings and embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] Referring to Figures 1 to 5 A cement slurry spraying device, comprising a hopper 1, a spray gun 2 is installed in communication at the bottom of the hopper 1, the bottom of both sides of the hopper 1 is designed as an open structure, a nozzle 14 is threadedly installed at the bottom of one side of the hopper 1, a limiting ring 15 is fixedly installed at the bottom of the other side of the hopper 1, and a hand screw nut 151 is rotatably installed on the limiting ring 15; the spray gun 2 comprises an air jet pipe 21, one end of the air jet pipe 21 extends into the inside bottom of the hopper 1, a control valve 22 is threadedly installed at the other end of the air jet pipe 21, and an air pipe joint 23 is threadedly installed at the end of the control valve 22 away from the air jet pipe 21.
[0025] In the embodiment, the inside top side of the hopper 1 is fixedly provided with a baffle 11, and a turning plate 12 is rotatably connected to the side of the baffle 11 away from the hopper 1 through a spring hinge 111. A handle 16 is fixedly provided on the side of the outer wall of the hopper 1. The baffle 11 is part of the top structure of the hopper 1, which effectively prevents the cement slurry from splashing out when it is added to the hopper 1, and ensures the cleanliness of the operating environment. The turning plate 12 is connected to the baffle 11 through the spring hinge 111, and the design of the turning plate 12 allows the cement slurry to be smoothly poured into the hopper 1. After the hopper 1 is filled, the turning plate 12 can be automatically closed to prevent the cement slurry from leaking and maintain the sealing performance of the hopper 1. The handle 16 facilitates the operator to hold the hopper 1, and improves the flexibility and convenience of operation.
[0026] In the embodiment, a limiting plate 13 is fixedly provided on the inner wall of the hopper 1 on the side of the upper end face of the turning plate 12 away from the baffle 11. The lower end face of the limiting plate 13 is in contact with the upper end face of the turning plate 12 but not fixedly connected thereto, and the lower end face of the limiting plate 13 is flush with the upper end face of the baffle 11. The limiting plate 13 is located above the turning plate 12, and when the turning plate 12 is reset under the action of the spring hinge 111, the limiting plate 13 ensures that the turning plate 12 remains in a fully closed state, further enhances the sealing performance of the hopper 1, and effectively prevents the cement slurry from leaking.
[0027] In the embodiment, the air jet pipe 21 is designed of stainless steel material, the outer diameter of the air jet pipe 21 is smaller than the inner diameter of the bottom of the hopper 1, an outer threaded sleeve 211 is fixedly provided on the outer wall of the air jet pipe 21, and the end of the air jet pipe 21 inserted into the hopper 1 is designed in a conical structure, and there is a gap between the conical end of the air jet pipe 21 and the nozzle 14. The air jet pipe 21 is designed of stainless steel material, which has the characteristics of corrosion resistance and wear resistance, and is suitable for the transmission of corrosive liquids such as cement slurry. The outer diameter of the air jet pipe 21 is smaller than the inner diameter of the bottom of the hopper 1, which ensures that the air jet pipe 21 can be smoothly inserted into the bottom of the hopper 1 while maintaining a certain gap, facilitating the flow of cement slurry. The conical end of the air jet pipe 21 helps to form uniform airflow, thereby ensuring uniform spraying of the cement slurry. There is a gap between the conical end of the air jet pipe 21 and the nozzle 14, which helps the cement slurry to be sprayed towards the nozzle 14 under the action of the air jet of the air jet pipe 21, and reduces the risk of blockage of the air jet pipe 21.
[0028] In the embodiment, the outer threaded sleeve 211 is welded on the air jet pipe 21 on the side opposite to the control valve 22 of the hopper 1, and the outer threaded sleeve 211 is threadedly connected with the hand screw nut 151. The outer threaded sleeve 211 is welded on the air jet pipe 21, which provides a basis for the threaded connection with the hand screw nut 151, ensures the stable connection between the air gun 2 and the hopper 1, and through the rotation of the hand screw nut 151, the installation and disassembly of the air gun 2 on the hopper 1 can be easily realized, which is convenient for cleaning and maintenance.
[0029] In the embodiment, the outer wall of the end of the air pipe joint 23 away from the control valve 22 is provided with a stepped annular protrusion, and the air pipe joint 23 is installed in communication with the gas boosting mechanism through the gas conveying pipe. The stepped annular protrusion on the air pipe joint 23 helps to enhance the connection stability with the gas conveying pipe and prevent gas leakage. Through the connection of the air pipe joint 23 with the gas conveying pipe of the gas boosting mechanism, stable gas pressure supply for the spray gun 2 is ensured, so that uniform spraying of the cement slurry is realized.
[0030] In use of the utility model, the cement slurry should be poured into the hopper 1 from the flap 12. The flap 12 will be automatically opened along the spring hinge 111 under the action of gravity, and after stopping pouring, the flap 12 will be reset under the action of the spring hinge 111 and limited by the limiting plate 13, so that the flap 12 keeps closed to prevent cement slurry leakage. The air jet pipe 21 of the spray gun 2 is ensured to be correctly inserted into the inside bottom of the hopper 1, and the spray gun 2 is fixed on the hopper 1 through the screwing operation of the hand screw nut 151 on the outer threaded sleeve 211. The air pipe joint 23 is connected with the gas conveying pipe of the gas boosting mechanism to ensure stable gas supply. The control valve 22 is opened, the gas boosting mechanism supplies gas to the air jet pipe 21 through the air pipe joint 23 and the control valve 22 to form gas pressure. Due to the gas pressure in the spray gun 2, the cement slurry is uniformly sprayed out of the hopper 1 through the nozzle 14, realizing uniform spraying of the cement slurry.
[0031] After use, the control valve 22 is closed, and the air pipe joint 23 is disconnected from the gas boosting mechanism. The spray gun 2 is removed from the hopper 1 as a whole, which facilitates overall cleaning of the hopper 1, including cleaning of the residual cement slurry on the flap 12, the limiting plate 13 and the inner wall of the hopper 1. Since the interior of the spray gun 2 is continuously subjected to gas pressure during operation, there is usually no residual cement slurry. However, in order to ensure cleaning, the spray gun 2 can also be checked and cleaned as necessary.
[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.
Claims
1. A cement slurry spraying device, characterized by: Including hopper, the bottom of the hopper is communicated with a spray gun, the bottom of the hopper is designed as an open structure on both sides, a nozzle is screw-mounted on one side of the bottom of the hopper, a limiting ring is fixedly installed on the other side of the bottom of the hopper, and a hand nut is rotatably installed on the limiting ring.
2. The cement slurry spraying device of claim 1, wherein: The spray gun comprises a jet pipe, one end of the jet pipe extends into the inside bottom of the hopper, a control valve is screw-mounted on the other end of the jet pipe, and a gas pipe joint is screw-mounted on the end of the control valve away from the jet pipe.
3. The cement slurry spraying device of claim 2, wherein: A baffle is fixedly installed on one side of the inside top of the hopper, and a flap is rotatably installed on the side of the baffle away from the hopper by a spring hinge.
4. A cement slurry spraying device according to claim 2 or 3, characterised in that: A handle is fixedly installed on one side of the outer wall of the hopper.
5. A cement slurry spraying device according to claim 1 or 2, characterised in that: A limiting plate is fixedly installed on the inside wall of the hopper on the side of the upper end face of the flap away from the baffle, the lower end face of the limiting plate is in contact with the upper end face of the flap but is not fixedly connected, and the lower end face of the limiting plate is flush with the upper end face of the baffle.
6. The cement slurry spraying device of claim 5, wherein: The jet pipe is made of stainless steel, the outer diameter of the jet pipe is smaller than the inner diameter of the bottom of the hopper, an outer thread sleeve is fixedly installed on the outer wall of the jet pipe, the end of the jet pipe extending into the hopper is designed in a conical structure, and a gap is left between the conical end of the jet pipe and the nozzle.
7. A cement slurry spraying device according to claim 1 or 2, characterised in that: The outer thread sleeve is welded on the jet pipe on the side opposite to the control valve of the hopper, and the outer thread sleeve is screw-connected with the hand nut. The outer wall of the end of the gas pipe joint away from the control valve is provided with a stepped annular protrusion, and the gas pipe joint is communicated with a gas booster mechanism by a gas conveying pipe.