Sand storage device

Abstract

The sand storage device comprises a sand storage tank, the sand storage tank is provided with a sand inlet and a sand outlet, the sand inlet is provided with a sand adding valve, the sand adding valve comprises a valve body connected with the sand inlet, the valve body is provided with a first port and a second port, the first port is connected with the sand inlet, and a deformation sealing piece used for sealing the second port is arranged in the valve body. The deformation sealing piece is connected with a balancing weight, the sand adding valve is provided with an air inlet nozzle, the air inlet nozzle is located below the balancing weight, and the air outlet end of the air inlet nozzle faces the balancing weight. The sand inlet is connected with a sand adding tank; the balancing weight is configured to be used for driving the deformation sealing piece to deform downwards, so that the second port is in an open state and communicates with the interior of the valve body; the air inlet nozzle is configured in the mode that when air enters the air inlet nozzle, compressed air output by the air outlet end of the air inlet nozzle drives the balancing weight and the deformation sealing piece to be attached to the valve body upwards so that the second port can be closed.

Description

Technical Field

[0001] The invention relates to the technical field of sand blasting and sand storage equipment, in particular to a sand storage device. Background Art

[0002] Prior art, such as Chinese invention patent application document, publication number CN 105171617A, discloses a sandblasting device for glass sandblasting, including a sand stirring mechanism, a sandblasting mechanism, a collecting mechanism and a conveying mechanism, wherein the sandblasting mechanism is located between the sand stirring mechanism and the collecting mechanism, and the conveying mechanism is located in the sandblasting mechanism, the sand stirring mechanism includes a feeding hopper, a storage chamber and a stirring shaft, a closing valve is connected between the feeding hopper and the storage chamber, a stirring shaft is provided in the storage chamber, the sandblasting mechanism includes a sandblasting chamber, a spray gun, a material inlet and a material outlet, the conveying mechanism includes a first conveying mechanism and a second conveying mechanism, the turning device includes a rotating disk, a fixed box and a clamping plate, the collecting mechanism includes a collecting hopper, a sand pump, a collecting chamber and a sand filter tray, the collecting hopper and the sand pump are located in the collecting chamber, a sand filter tray is provided at the top of the collecting chamber, and the sand filter tray is connected to the sandblasting chamber.

[0003] Based on the above, in the prior art, a closed valve is used to connect the hopper and the storage chamber. During the sandblasting operation, the closed valve is in a closed state. When the hopper adds sand to the storage chamber, the closed valve is in an open state. This structure using a closed valve uses an existing pneumatic or electric valve body. The use of this existing valve body has the technical problem that it needs to be connected to an additional air source or power source, and the purchase cost of the valve body is high. The valve body needs to be individually controlled to open or close, which needs further improvement. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a sand storage device with a second port that is automatically opened and closed.

[0005] A sand storage device designed for this purpose comprises a sand storage tank, the sand storage tank is provided with a sand inlet and a sand outlet, the sand inlet is provided with a sand adding valve, the sand adding valve comprises a valve body connected to the sand inlet, the valve body is provided with a first port and a second port, the first port is connected to the sand inlet, a deformable sealing sheet for sealing the second port is provided in the valve body, the deformable sealing sheet is connected with a counterweight, the sand adding valve is provided with an air inlet nozzle, the air inlet nozzle is located below the counterweight and an air outlet end is arranged toward the counterweight;

[0006] The sand inlet is connected to a sand adding tank;

[0007] The counterweight block is configured to: drive the deformable sealing sheet to deform downward, so that the second port is in an open state and communicates with the interior of the valve body;

[0008] The air inlet nozzle is configured such that when the air inlet nozzle is inletting air, the compressed air outputted from the air outlet end thereof drives the counterweight block and the deformable sealing sheet to fit upwardly with the valve body to close the second port.

[0009] Preferably, the valve body is connected to a fixing member, and the fixing member is provided with a deformable connecting member connected to the deformable sealing sheet.

[0010] Preferably, the valve body is provided with an annular fixing groove, and the fixing member is fixedly disposed in the annular fixing groove.

[0011] Preferably, the valve body includes a first connecting member, a second connecting member and a third connecting member connected in sequence from bottom to top, the first port is arranged on the first connecting member, the second port is arranged on the third connecting member, and a seal is formed when the upper surface of the deformable sealing sheet is in contact with the lower surface of the third connecting member.

[0012] Preferably, the annular fixing groove is arranged between the second connecting member and the third connecting member.

[0013] Preferably, the first connecting member, the second connecting member and the third connecting member are connected in sequence by a plurality of bolts;

[0014] The fixing piece is provided with a fixing hole, and the bolt is passed through the fixing hole.

[0015] Preferably, a sealing convex ring is provided on the upper surface of the deformable sealing sheet.

[0016] Preferably, the sand adding tank is located above the sand storage tank, and the sand adding tank is connected with a pipe fitting to be connected with the sand inlet.

[0017] Preferably, the sand storage tank is provided with a pressure relief valve and a safety valve respectively.

[0018] Preferably, the sand storage tank is provided with a base frame.

[0019] Compared with the prior art, the present invention adopts the cooperation of a deformable sealing sheet and a counterweight block. In a natural state, the counterweight block and the deformable sealing sheet are deformed and move downward under the action of gravity, so that the second port is in an open state. In this state, the sand in the sand adding tank can enter the sand storage tank through the second port, the valve body and the sand adding port. When sandblasting, external compressed air is input into the valve body from the air nozzle. Under the action of compressed air, the counterweight block and the deformable sealing sheet move upward and fit the valve body, so that the second port is closed, that is, the seal is completed. The present invention uses the compressed air originally required for sandblasting to drive the deformable sealing sheet to close the second port, thereby solving the problems of high control cost and high valve procurement cost brought about by the pneumatic valves or electric valves that need to be controlled separately in the prior art. The present invention has the effect of simple control structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is one of the cross-sectional structure schematic diagrams of the present invention;

[0021] Figure 2 This is the second schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the deformable sealing sheet. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 5 A sand storage device comprises a sand storage tank 10, wherein the sand storage tank 10 is provided with a sand inlet 110 and a sand outlet 120, wherein the sand inlet 110 is provided with a sand adding valve 20, wherein the sand adding valve 20 comprises a valve body 200 connected with the sand inlet 110, wherein the valve body 200 is provided with a first port 210 and a second port 220, wherein the first port 210 is connected with the sand inlet 110, wherein a deformable sealing sheet 230 for sealing the second port 220 is provided in the valve body 200, wherein the deformable sealing sheet 230 is connected with a counterweight 240, and wherein the sand adding valve 20 is provided with an air inlet nozzle 30, wherein the air inlet nozzle 30 is located below the counterweight 240 and an air outlet end is arranged toward the counterweight 240;

[0027] The second port 220 is connected to a sand adding tank 40;

[0028] The counterweight block 240 is configured to: drive the deformable sealing sheet 230 to deform downward, so that the second port 220 is in an open state and communicates with the interior of the valve body 200;

[0029] The air inlet nozzle 30 is configured such that when the air inlet nozzle 30 is inletting air, the compressed air outputted from the air outlet end thereof drives the counterweight block 240 and the deformable sealing sheet 230 to fit upwardly with the valve body 200 to close the second port 220 .

[0030] Based on the above embodiment, the deformable sealing sheet and the counterweight block are matched. Under the natural state, the counterweight block and the deformable sealing sheet are deformed and move downward under the action of gravity, so that the second port is in an open state. In this state, the sand in the sand adding tank can enter the sand storage tank through the second port, the valve body and the sand adding port.

[0031] During sandblasting in this embodiment, external compressed air is input into the valve body from the air nozzle. Under the action of the compressed air, the counterweight block and the deformable sealing sheet move upward and fit into the valve body, so that the second port is closed, thus completing the sealing.

[0032] The present invention uses the compressed air originally required for sandblasting to drive the deformable sealing sheet to close the second port, thereby solving the problems of high control cost and high valve procurement cost caused by the pneumatic valve or electric valve that needs to be controlled separately in the prior art. The present invention has the effect of simple control structure and low manufacturing cost.

[0033] See also Figure 3 and Figure 5 The valve body 200 is connected to a fixing member 250, and the fixing member 250 is provided with a deformable connecting member 260 connected to the deformable sealing sheet 230. The fixing member 250 is fixedly arranged, and with the weight of the counterweight block 240 or the driving of compressed air, the deformable sealing sheet 230 and the deformable connecting member 260 are deformed to swing up and down relative to the fixing member 250, so as to realize the opening or closing of the second port 220.

[0034] Furthermore, the diameter of the counterweight block 240 is greater than the diameter of the second port 220. This design can achieve that when the compressed air drives the counterweight block 230 and the deformable sealing plate 230 to move upward, the counterweight block 240 can drive the deformable sealing plate 230 to fit tightly against the inner wall of the valve body 200, thereby preventing the deformable sealing plate 230 from deforming upward and entering the second port 220.

[0035] See also Figures 1 to 3 The valve body 200 is provided with an annular fixing groove 204 , and the fixing member 250 is fixedly disposed in the annular fixing groove 204 .

[0036] See also Figures 1 to 3The valve body 200 includes a first connecting member 201, a second connecting member 202 and a third connecting member 203 which are sequentially connected from bottom to top. The first port 210 is arranged on the first connecting member 201, and the second port 220 is arranged on the third connecting member 203. The upper surface of the deformable sealing sheet 230 forms a seal when it is in contact with the lower surface of the third connecting member 203.

[0037] See also Figures 1 to 3 The annular fixing groove 204 is arranged between the second connecting member 202 and the third connecting member 203 .

[0038] See also Figure 3 The first connecting member 201, the second connecting member 202 and the third connecting member 203 are connected in sequence using multiple bolts 205.

[0039] See also Figure 3 and Figure 5 The fixing member 250 is provided with a fixing hole 251 , and the bolt 205 is passed through the fixing hole 251 .

[0040] See also Figure 3 and Figure 5 The upper surface of the deformable sealing sheet 230 is provided with a sealing convex ring 231. The provision of the sealing convex ring 231 can strengthen the fitting and sealing between the deformable sealing sheet 230 and the lower surface of the third connecting member 203, and effectively improve the sealing performance.

[0041] See also Figure 4 The sand adding tank 40 is located above the sand storage tank 10 , and the sand adding tank 40 is connected to a pipe fitting 50 and connected to the second port 220 .

[0042] See also Figure 4 The sand storage tank 10 is respectively provided with a pressure relief valve 60 and a safety valve 70 .

[0043] The function of the safety valve 70 is to open and release the pressure when the internal pressure of the sand storage tank 10 is greater than the threshold value of the safety valve 70, thereby ensuring safety.

[0044] The function of the pressure relief valve 60 is that when adding sand, the pressure relief valve 60 is opened to connect the inside and outside of the sand storage tank 10. In this state, the air nozzle 30 is in a closed state, and the deformable sealing sheet cooperates with the counterweight block. In a natural state, the counterweight block and the deformable sealing sheet are deformed and move downward under the action of gravity, so that the second port is in an open state. In this state, the sand in the sand adding tank can enter the sand storage tank through the second port, the valve body and the sand adding port.

[0045] During sandblasting, the pressure relief valve 60 is closed and the air nozzle 30 is opened. The compressed air input from the air nozzle 30 drives the counterweight block 240 and the deformable sealing sheet 230 upward to fit the valve body 200 to form a seal. The input compressed air drives the sand to be output from the sand outlet 120 for use.

[0046] See also Figure 1 and Figure 2 The sand storage tank 10 is provided with a base frame 100 .

[0047] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sand storage device, comprising a sand storage tank (10), wherein the sand storage tank (10) is provided with a sand inlet (110) and a sand outlet (120), wherein the sand inlet (110) is provided with a sand adding valve (20), characterized in that: The sand adding valve (20) comprises a valve body (200) connected to the sand inlet (110), the valve body (200) being provided with a first port (210) and a second port (220), the first port (210) being connected to the sand inlet (110), a deformable sealing sheet (230) for sealing the second port (220) being provided in the valve body (200), the deformable sealing sheet (230) being connected to a counterweight (240), and the sand adding valve (20) being provided with an air inlet nozzle (30), the air inlet nozzle (30) being located below the counterweight (240) and the air outlet end being arranged toward the counterweight (240); The second port (220) is connected to a sand adding tank (40); The counterweight block (240) is configured to: drive the deformable sealing sheet (230) to deform downward, so that the second port (220) is in an open state and communicates with the interior of the valve body (200); The air inlet nozzle (30) is configured such that when the air inlet nozzle (30) is taking in air, the compressed air outputted from the air outlet end thereof drives the counterweight block (240) and the deformable sealing sheet (230) to fit upwardly with the valve body (200) so as to close the second port (220).

2. A sand storage device according to claim 1, characterized in that: The valve body (200) is connected to a fixing member (250), and the fixing member (250) is provided with a deformable connecting member (260) connected to the deformable sealing sheet (230).

3. A sand storage device according to claim 2, characterized in that: The valve body (200) is provided with an annular fixing groove (204), and the fixing member (250) is fixedly arranged in the annular fixing groove (204).

4. A sand storage device according to claim 3, characterized in that: The valve body (200) comprises a first connecting member (201), a second connecting member (202) and a third connecting member (203) which are sequentially connected from bottom to top; the first port (210) is arranged on the first connecting member (201); the second port (220) is arranged on the third connecting member (203); and a seal is formed when the upper surface of the deformable sealing sheet (230) is in contact with the lower surface of the third connecting member (203).

5. A sand storage device according to claim 4, characterized in that: The annular fixing groove (204) is arranged between the second connecting member (202) and the third connecting member (203).

6. A sand storage device according to claim 4, characterized in that: The first connecting member (201), the second connecting member (202), and the third connecting member (203) are connected in sequence using a plurality of bolts (205); The fixing member (250) is provided with a fixing hole (251), and the bolt (205) is inserted into the fixing hole (251).

7. A sand storage device according to any one of claims 4 to 6, characterized in that: A sealing convex ring (231) is provided on the upper surface of the deformable sealing sheet (230).

8. A sand storage device according to claim 1, characterized in that: The sand adding tank (40) is located above the sand storage tank (10), and the sand adding tank (40) is connected to a pipe fitting (50) and is connected to the second port (220).

9. A sand storage device according to claim 1, characterized in that: The sand storage tank (10) is respectively provided with a pressure relief valve (60) and a safety valve (70).

10. A sand storage device according to claim 1, characterized in that: The sand storage tank (10) is provided with a base frame (100), and the diameter of the counterweight block (240) is greater than the diameter of the second port (220).

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