Cart type sand blasting device with external power

Abstract

A cart type power external sand blasting device comprises a hand push frame, the hand push frame comprises four stand columns arranged in a rectangular shape, the top ends of every two adjacent stand columns are jointly connected with an inclined push rod, a containing cavity is formed among the four stand columns, a sand storage tank is installed in the containing cavity, an end cover is installed at the top of the sand storage tank, and a pressure release valve is installed at the end cover; nitrogen cylinders are installed on the outer sides of the two stand columns with the top ends provided with push rods, and air outlets in the upper ends of the nitrogen cylinders communicate with the bottom of the sand storage tank through air pipes and can provide nitrogen for the sand storage tank; a sand outlet is formed in the bottom of the sand storage tank and connected with a spray head through a sand blasting pipe, and the sand blasting pipe extends towards the side deviating from the nitrogen tank. And compared with a traditional mode of manually covering the sandy soil through tools such as a shovel, the mode is convenient to operate, the fire extinguishing position can be adjusted at will, the fire extinguishing speed is high, and the device is very suitable for being used in a plant.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing, in particular to a cart-type powered external sandblasting device. Background Art

[0002] Magnesium alloys have good lightness, machinability, corrosion resistance, shock absorption, dimensional stability and impact resistance, which are far superior to other materials. These characteristics make magnesium alloys used in a wide range of fields, such as transportation, electronics, medical, military, etc. This trend is only increasing.

[0003] The processing of magnesium requires magnesium smelting equipment - magnesium furnace. Since magnesium is a relatively active metal, once the magnesium solution leaks or flows out during the smelting process, it will undergo a violent oxidation reaction with oxygen in the air, and may even cause a fire, causing huge losses to the company. However, when magnesium liquid catches fire, it is not suitable for firefighting with water, foam, carbon dioxide and other materials, and common dry powder fire extinguishers can only be used as auxiliary fire extinguishing tools, so it is necessary to use sand to cover and extinguish the fire, and the existing method usually uses tools such as sand buckets or shovels to cover manually, but once magnesium liquid leaks, due to the intense burning, it is difficult for personnel to approach, and it is impossible to extinguish the fire in the first time, and the fire extinguishing effect is poor, or a large loader is used to shovel soil for covering, but for a small-scale fire in the factory, this method is difficult to operate in the factory building, so it is necessary to develop a new type of fire extinguishing device with fast reaction speed, simple operation, and can suppress open flames and prevent magnesium liquid from flowing around. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a cart-type powered external sandblasting device.

[0005] The technical solution of this utility model is as follows:

[0006] A cart-type powered external sandblasting device comprises a hand push frame, the hand push frame comprises four columns arranged in a rectangular shape, and the tops of two adjacent columns are commonly connected with an inclined push rod, and a receiving cavity is formed between the four columns, a sand storage tank is installed in the receiving cavity, and an end cover is installed on the top of the sand storage tank, and a pressure relief valve is installed on the end cover;

[0007] A nitrogen bottle is installed outside the two uprights with push rods installed at the top, and the gas outlet at the upper end of the nitrogen bottle is connected to the bottom of the sand storage tank through an air pipe, so as to provide nitrogen for the sand storage tank;

[0008] A sand outlet is provided at the bottom of the sand storage tank, and the sand outlet is connected to a nozzle through a sand blasting pipe, and the sand blasting pipe extends toward a side away from the nitrogen tank.

[0009] To improve the stability of the overall device when placed on the ground after installing the sand storage tank, two sets of horizontal frames are commonly connected to the top and bottom of the four columns, and the horizontal frames extend towards the side away from the nitrogen cylinder.

[0010] To facilitate the movement of the sandblasting device, connecting shafts are installed on the outer sides of the two columns at the bottom of the nitrogen cylinder, and moving wheels are rotatably installed at both ends of the connecting shafts.

[0011] To make the sandblasting device more stable when placed in a non-working state, the lowest position of the moving wheel is higher than the bottom surface of the horizontal frame at the bottom of the column.

[0012] The fixing method of the sand storage tank is that mounting plates are connected between the two columns where the push rod is installed and the other two columns, and there are two sets of them arranged up and down. A plurality of mounting frames fixed to the mounting plates are arranged up and down on the outer edge surface of the sand storage tank.

[0013] The fixing method of the nitrogen cylinder is that two mounting plates close to the nitrogen cylinder are respectively installed with a clamp and a bracket, and the bracket is located below the clamp. The nitrogen cylinder is installed between the clamp and the bracket.

[0014] To facilitate the storage of the sandblasting pipe, two U-shaped frames fixed in a cross shape are installed between the two mounting plates close to the sandblasting pipe, and the openings of the U-shaped frames face away from the sand storage tank.

[0015] To facilitate the adjustment of the length of the nozzle and facilitate alignment with the ignition position, the nozzle is connected to the sandblasting pipe through a telescopic pipe.

[0016] To be able to protect the nitrogen cylinder, protective nets are installed between the upper end of the push rod and the two columns close to the nitrogen cylinder.

[0017] To prevent the sand in the sand storage tank from flowing back into the air pipe, a one-way valve is installed at the connection position between the air pipe and the sand storage tank, and a pressure regulating valve is installed between the air pipe and the air outlet of the nitrogen cylinder.

[0018] The beneficial effects of the present utility model are as follows: The present utility model is a cart-type external power sandblasting device. Firstly, by setting a nitrogen cylinder and a sand storage tank, and cooperating with an air pipe and a sand outlet tank, sandblasting work can be achieved. Compared with the traditional manual method of using tools such as shovels to manually cover sand, this method is convenient to operate, can adjust the fire extinguishing position arbitrarily, has a fast fire extinguishing speed, and is very suitable for use in factories; Secondly, the device adopts a structural form of an external power source, enabling the high-pressure nitrogen in the nitrogen cylinder to continuously provide power to the sand storage tank. The pressure supply is relatively stable and adjustable, and the sandblasting speed can be adjusted according to the usage scenario. The device adopts a bottom pressurization method and is close to the sand outlet, which can make the sand at the bottom become soft under the impact of nitrogen, and the sand is easier to flow out. A one-way valve is provided at the air outlet of the device, which can prevent the sand from flowing back into the inflation pipeline and prevent blocking the inflation pipeline; Finally, through the hand push frame cooperating with the moving wheels, on the one hand, when the sandblasting device is stationary, the installation frame makes it more stable, and on the other hand, the push rod cooperating with the moving wheels facilitates the rapid movement of the sandblasting device to the fire location. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiments below, the solutions and advantages of the present application will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model.

[0020] In the drawings:

[0021] Figure 1 is the first perspective view of the sandblasting device;

[0022] Figure 2 is the partial first perspective view of the sandblasting device;

[0023] Figure 3 is the second perspective view of the sandblasting device;

[0024] Figure 4 is the bottom view of the sandblasting device;

[0025] The components represented by the reference numerals in the drawings are:

[0026] 1. Hand push frame; 101. Column; 102. Push rod; 103. Accommodation cavity; 104. Horizontal frame; 2. Sand storage tank; 3. End cover; 4. Pressure relief valve; 5. Nitrogen cylinder; 6. Air pipe; 7. Sand outlet; 8. Sandblasting pipe; 9. Nozzle; 10. Connecting shaft; 11. Moving wheel; 12. Mounting plate; 13. Mounting frame; 14. Clamp; 15. Bracket; 16. U-shaped frame; 17. Telescopic pipe; 18. Protective net; 19. One-way valve; 20. Pressure regulating valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will describe the exemplary embodiments of the present disclosure in more detail with reference to the drawings.

[0028] Embodiment

[0029] This embodiment provides a cart-type power external sandblasting device. Refer to Figure 1 , including a hand push frame 1. The specific design of the hand push frame 1 is that the hand push frame 1 includes four vertical columns 101 arranged in a rectangle. The four vertical columns 101 are vertically arranged and extend upward. An accommodation cavity 103 is formed between the four vertical columns 101, that is, the square area between the four vertical columns 101. A sand storage tank 2 is installed in the accommodation cavity 103. The sand storage tank 2 is vertically installed in the accommodation cavity 103, and an end cover 3 is installed on the top of the sand storage tank 2. The end cover 3 is used to seal the sand storage tank 2. A pressure relief valve 4 is installed at the end cover 3, which is beneficial to maintaining the airtightness of the tank body.

[0030] And the tops of two adjacent vertical columns 101 are jointly connected with an inclined push rod 102, which is inclined upward, that is, as Figure 1 shown, the push rod 102 is installed on the tops of the two vertical columns 101 located at the rear side. Moreover, the push rod 102 is set in a U shape, and both ends are respectively connected with the tops of the two vertical columns 101, which is convenient for hand pushing. And with the cooperation of the push rod 102, the whole device can be moved. A connecting shaft 10 is installed at the bottoms of the two vertical columns 101 on this side. Moving wheels 11 are rotatably connected to both ends of the connecting shaft 10. The whole device can be pushed to the fire position through the cooperation of the push rod 102 and the moving wheels 11.

[0031] The hand push frame 1 specifically further includes two groups of horizontal frames 104 that are jointly connected with the tops and bottoms of the four vertical columns 101, and the horizontal frames 104 extend toward the side away from the nitrogen cylinder 5, extending beyond the vertical columns 101, increasing the contact area with the ground. And the lowest position of the moving wheels 11 is higher than the bottom surface of the horizontal frame 104 at the bottom end of the vertical columns 101, so that when the sandblasting device is stationary and not in use, the horizontal frame 104 can contact the ground, improving the stability of the overall sandblasting device. When it needs to be moved, the whole hand push frame 1 is tilted backward. And for the convenience of applying force, a pedal is provided at the connecting shaft 10. Hold the push rod 102 by hand and step on the pedal to apply force, so that the whole hand push frame 1 tilts backward until the moving wheels 11 contact the ground, and then it can be moved.

[0032] On the basis of the above structure, combined with Figure 2 , mounting plates 12 are connected between the two vertical columns 101 where the push rod 102 is installed and the other two vertical columns 101, and there are two upper and lower ones respectively. A plurality of mounting brackets 13 fixed to the mounting plates 12 are arranged up and down on the outer edge surface of the sand storage tank 2. In this embodiment, two groups of mounting brackets 13 are provided at the upper and lower ends of the sand storage tank 2, and four are provided in each group. The four mounting brackets 13 are respectively installed on the mounting plates 12 on both sides, and can be detachably fixed by bolts and other means.

[0033] In this embodiment, combined with Figure 3 , the power source for sandblasting is externally arranged, that is, arranged on the outside of the sand storage tank 2. Specifically, a nitrogen bottle 5 is installed on the outside of the two columns 101 with a push rod 102 installed at the top, and a switch valve is arranged on the upper end of the nitrogen bottle 5, and the nitrogen bottle 5 is located above the connecting shaft 10. The nitrogen bottle 5 is fixed in such a way that two mounting plates 12 close to the nitrogen bottle 5 are respectively installed with a clamp 14 and a bracket 15, and the bracket 15 is located below the clamp 14. The nitrogen bottle 5 is installed between the clamp 14 and the bracket 15, and the nitrogen bottle 5 is fixed by the clamp 14. A through hole is provided on the upper surface of the bracket 15, and the diameter is smaller than the maximum diameter of the nitrogen bottle 5. The lower end of the nitrogen bottle 5 is hemispherical and enters into the through hole, and the bracket 15 supports it.

[0034] The gas outlet at the upper end of the nitrogen cylinder 5 is connected to the bottom of the sand storage tank 2 through the air pipe 6. In order to control the pressure of the gas outlet and provide nitrogen for the sand storage tank 2, a pressure regulating valve 20 is installed between the air pipe 6 and the gas outlet of the nitrogen cylinder 5, and a one-way valve 19 is installed at the position where the air pipe 6 is connected to the sand storage tank 2 to prevent nitrogen from flowing back and prevent the air pipe 6 from being blocked by sand. The bottom of the sand storage tank 2 is provided with a sand outlet 7. Figure 4 The sand outlet 7 is connected to a nozzle 9 through a sand blasting pipe 8, and the sand blasting pipe 8 extends toward the side away from the nitrogen tank. Nitrogen is provided to the sand storage tank 2 at the bottom through the air pipe 6, which can loosen the sand near the sand outlet 7 and increase the speed of sand discharge. In order to facilitate the nozzle 9 to be aimed at the fire position, the nozzle 9 and the sand blasting pipe 8 are connected through a telescopic pipe 17. The position of the nozzle 9 can be adjusted by setting the telescopic pipe 17, and a ball valve is installed on the sand blasting pipe 8 at the sand outlet 7 to control the amount of sand discharge.

[0035] On the basis of the above structure, in order to facilitate the storage of the sandblasting tube 8 when the sandblasting device is stationary, two U-shaped frames 16 fixed in a cross shape are installed between the two mounting plates 12 near the sandblasting tube 8, and the opening of the U-shaped frame 16 is away from the sand tank. Through the arrangement of the two U-shaped frames 16, the sandblasting tube 8 can be wrapped around the U-shaped frame 16 for storage.

[0036] In order to protect the nitrogen cylinder 5, a protective net 18 is installed between the upper end of the push rod 102 and the two columns 101 close to the nitrogen cylinder 5. The protective net 18 can be fixed to the corresponding rod by a fixing hoop. The protective net 18 can prevent other objects from falling onto the nitrogen cylinder 5, thereby reducing safety hazards.

[0037] Specifically, first hold the push rod 102 by hand and apply force on the pedal, so that the entire hand push frame 1 tilts backward until the moving wheels 11 contact the ground, move to the fire location, lower the entire device so that the horizontal frame 104 contacts the ground, remove the sandblasting pipe 8 from the U-shaped frame 16, quickly adjust the opening degrees of the pressure regulating valve 20 and the ball valve, open the switch valve of the nitrogen cylinder 5, nitrogen enters the sand storage tank 2 through the air pipe 6, and the sand grains enter the sandblasting pipe 8 at the sand outlet 7 through air pressure. Hold the sandblasting pipe 8 by hand so that the nozzle 9 is aligned with the fire location, and the sand grains are ejected at the nozzle 9 to cover the fire source.

Claims

1. A cart-type powered external sandblasting device, characterized in that: The hand push frame (1) comprises four upright posts (101) arranged in a rectangular shape, and the tops of two adjacent upright posts (101) are commonly connected to an inclined push rod (102), and a receiving chamber (103) is formed between the four upright posts (101), a sand storage tank (2) is installed in the receiving chamber (103), and an end cover (3) is installed on the top of the sand storage tank (2), and a pressure relief valve (4) is installed at the end cover (3); A nitrogen bottle (5) is installed outside the two uprights (101) with a push rod (102) installed at the top, and the gas outlet at the upper end of the nitrogen bottle (5) is connected to the bottom of the sand storage tank (2) through an air pipe (6), so as to provide nitrogen for the sand storage tank (2); The sand storage tank (2) is provided with a sand outlet (7) at the bottom, and the sand outlet (7) is connected to a nozzle (9) via a sand blasting pipe (8), and the sand blasting pipe (8) extends toward a side away from the nitrogen tank.

2. The cart-type powered external sandblasting device according to claim 1, characterized in that: The top and bottom ends of the four uprights (101) are commonly connected to two groups of horizontal frames (104), and the horizontal frames (104) extend toward a side away from the nitrogen cylinder (5).

3. The cart-type powered external sandblasting device according to claim 2, characterized in that: A connecting shaft (10) is installed on the outer sides of the two upright posts (101) at the bottom of the nitrogen bottle (5), and moving wheels (11) are rotatably installed at both ends of the connecting shaft (10).

4. The cart-type powered external sandblasting device according to claim 3, characterized in that: The lowest position of the moving wheel (11) is higher than the bottom surface of the horizontal frame (104) at the bottom end of the column (101).

5. The cart-type powered external sandblasting device according to claim 1, characterized in that: The two columns (101) on which the push rods (102) are installed and the other two columns (101) are connected with mounting plates (12), and two mounting plates are arranged up and down. The outer edge surface of the sand storage tank (2) is provided with a plurality of mounting frames (13) fixed to the mounting plates (12) up and down.

6. The cart-type powered external sandblasting device according to claim 5, characterized in that: Two mounting plates (12) close to the nitrogen cylinder (5) are respectively installed with a clamp (14) and a bracket (15), and the bracket (15) is located below the clamp (14), and the nitrogen cylinder (5) is installed between the clamp (14) and the bracket (15).

7. The cart-type powered external sandblasting device according to claim 5, characterized in that: Two U-shaped frames (16) fixed in a cross shape are installed between two mounting plates (12) close to the sandblasting pipe (8), and the openings of the U-shaped frames (16) are facing away from the sand storage tank (2).

8. The cart-type powered external sandblasting device according to claim 1, characterized in that: The spray head (9) is connected to the sandblasting pipe (8) via a telescopic pipe (17).

9. The cart-type powered external sandblasting device according to claim 1, characterized in that: A protective net (18) is installed between the upper end of the push rod (102) and the two upright posts (101) close to the nitrogen bottle (5).

10. The cart-type powered external sandblasting device according to claim 1, characterized in that: A one-way valve (19) is installed at the position where the air pipe (6) is connected to the sand storage tank (2), and a pressure regulating valve (20) is installed between the air pipe (6) and the gas outlet of the nitrogen bottle (5).

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