Sand core funnel forward and reverse washing cleaning device

Abstract

The utility model provides a sand core funnel forward and reverse washing cleaning device, comprising: a cleaning funnel, a sealing gasket and a suction filter bottle; the sealing gasket is arranged on the inner wall of the cleaning funnel, a through hole is opened at the bottom of the sealing gasket and is aligned with the bell mouth of the cleaning funnel, the sealing gasket is used to press against the top opening of the cleaned sand core funnel, and the drainage outlet of the cleaning funnel is sealed and connected with the suction filter bottle. The cleaning device disclosed in the utility model can perform forward and reverse washing on the sand core funnel. Compared with the single-side cleaning method of the prior art, it can not only deeply clean the inside of the sand core and improve the filtration speed, but also greatly reduce the probability of the sand core funnel being broken due to excessive pressure.

Description

Technical Field

[0001] The utility model relates to the field of funnel cleaning devices, in particular to a sand core funnel forward and reverse washing cleaning device. Background Art

[0002] The sand core funnel needs to be cleaned after use. The current cleaning method for the sand core funnel is: the first step is to rinse the inside and outside of the sand core funnel with a cleaning liquid to wash away the particulate impurities visible to the naked eye on the surface. The second step is to install the sand core funnel in a suction filter bottle, add a cleaning agent to the sand core funnel, and achieve the effect of cleaning the sand core by vacuum cleaning.

[0003] In the Chinese patent document with publication number CN219722091U, an ultrasonic cleaning sand core funnel is disclosed, which belongs to the technical field of sand core funnel. It includes a funnel body and a sand core filter plate, the funnel body includes a cylindrical filter chamber and a liquid outlet chamber coaxially arranged from top to bottom, the diameter of the filter chamber is larger than the diameter of the liquid outlet chamber, a perforated support plate is placed on the boss connecting the filter chamber and the liquid outlet chamber, an air extraction pipe is fixedly arranged in the center of the perforated support plate, the sand core filter plate is arranged on the perforated support plate, an air extraction pipe through hole is arranged at the center of the sand core filter plate, and the lower end of the liquid outlet chamber is connected to the liquid outlet pipe.

[0004] However, the existing technologies all adopt unilateral flushing of the sand core funnel. As the number of times the sand core funnel is used increases, the filtration speed of the sand core funnel after cleaning becomes slower and slower, mainly because the existing cleaning method has a poor cleaning effect, resulting in residual particulate impurities. Utility Model Content

[0005] In view of the defects in the prior art, the utility model aims to provide a sand core funnel forward and reverse washing cleaning device.

[0006] According to the utility model, a sand core funnel forward and reverse washing cleaning device is provided, comprising: a cleaning funnel, a sealing gasket and a suction filter bottle;

[0007] The sealing gasket is arranged on the inner wall of the cleaning funnel, a through hole is opened at the bottom of the sealing gasket and is aligned with the bell mouth of the cleaning funnel, the sealing gasket is used to press against the top opening of the sand core funnel to be cleaned, and the discharge outlet of the cleaning funnel is sealed and connected with the suction bottle.

[0008] Preferably, the sealing gasket is a funnel-shaped structure, including a trumpet-shaped gasket and a sealing base, the sealing base is located at the port along the contraction direction of the trumpet-shaped gasket, the trumpet-shaped gasket fits against the inner wall of the cleaning funnel, and a through hole is opened in the center of the bottom of the gasket.

[0009] Preferably, a sealing plug is provided on the top of the suction bottle, the drainage outlet of the cleaning funnel is inserted into the sealing plug and sealed, and the air suction port located on the suction bottle body is connected to an external air suction device.

[0010] Preferably, it also includes a U-shaped sealing ring, which is clamped with the top opening of the cleaned sand core funnel and is used to seal tightly with the sealing gasket.

[0011] Preferably, it also includes a fixing frame, on which a funnel fixing clamp is provided, and the funnel fixing clamp is used to clamp the cleaned sand core funnel. A clamping structure is provided between the fixing frame and the funnel fixing clamp, and the clamping structure presses the clamped sand core funnel against the sealing gasket.

[0012] Preferably, the clamping structure comprises a telescopic cylinder, one end of which is fixedly disposed on a fixing frame, and a driving end of the telescopic cylinder is connected to the funnel fixing clamp.

[0013] Preferably, the funnel fixing clamp adopts a clamp structure.

[0014] Preferably, the funnel fixing clamp and the pressing structure are rotatably arranged, and a rotation locking structure is arranged on the funnel fixing clamp.

[0015] Preferably, the rotation locking structure is a rotation lock, one end of the rotation lock is fixedly connected to the clamping structure, one end of the funnel fixing clip is rotatably arranged in the rotation lock, and the funnel fixing clip is locked by a butterfly screw on the rotation lock.

[0016] Preferably, it also includes a retraction spring, and the retraction spring is respectively connected to the fixing frame and the pressing structure.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The cleaning device disclosed in the utility model can perform forward and reverse washing from the sand core funnel. Compared with the single-side cleaning method of the prior art, it can not only deeply clean the inside of the sand core and improve the filtration speed, but also greatly reduce the probability of the sand core funnel being broken due to excessive pressure.

[0019] 2. The device disclosed in the utility model can deeply clean the tiny holes in the sand core of the sand core funnel by backwashing and forward washing, so that the tiny holes in the sand core are fully washed, thereby accelerating the filtration speed during use, and at the same time can also extend the life of the sand core funnel and reduce production costs.

[0020] 3. The device disclosed by the utility model can ensure that the vacuum degree during cleaning is constant and lower than the vacuum resistance value of the sand core funnel, ensuring that the sand core funnel will not break, ensuring safety issues during cleaning.

[0021] 4. The trumpet-shaped cleaning funnel designed in the device disclosed in the utility model can be used to clean sand core funnels of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the sand core funnel forward and reverse washing cleaning device disclosed in the utility model;

[0024] Figure 2 It is a partial schematic diagram of the sand core funnel forward and reverse washing cleaning device disclosed in the utility model;

[0025] Figure 3 This is a schematic diagram of the sealing gasket in the utility model;

[0026] Figure 4 This is a schematic diagram of the funnel fixing clip in the utility model;

[0027] Figure 5 This is a schematic diagram of the telescopic cylinder in the utility model

[0028] Description of reference numerals:

[0029] Sand core funnel 1 Retraction spring 10

[0030] Funnel fixing clip 2 Cylinder sleeve 11

[0031] Cleaning funnel 3 limit stop 12

[0032] Sealing gasket 4 Compressed air inlet 13

[0033] Filter bottle 5 Exhaust port 14

[0034] Filter port 6 U-shaped sealing ring 15

[0035] Sealing plug 7 Butterfly screw 16

[0036] Rotating lock 8 Fixing bracket 17

[0037] Telescopic cylinder 9 DETAILED DESCRIPTION

[0038] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0039] We found that after the first step of cleaning, the sand core funnel is usually inverted and a 0.8 kg pressurized water pipe is inserted into the filtrate outlet of the funnel for backwashing before the second step of cleaning. After cleaning, the filtration speed of the sand core funnel is significantly accelerated, and the cleaning effect is significantly better than that of the sand core funnel without backwashing. However, during the backwashing process, the cleaning pressure can only be controlled by adjusting the size of the water pipe valve. If the pressure is less than 0.8 kg during the backwashing process with a pressurized water pipe, the debris in the sand core cannot be completely flushed out and the cleaning effect cannot be achieved. If the pressure is too high (more than 1 kg), the sand core funnel will rupture due to excessive pressure. The rupture of the sand core funnel will increase production costs and pose certain safety issues.

[0040] The utility model discloses a sand core funnel forward and reverse washing cleaning device, referring to Figure 1-Figure 5 As shown, it includes: a cleaning funnel 3, a sealing gasket 4 and a suction filter bottle 5. The cleaning funnel 3 is used to clean the sand core funnel 1; the sealing gasket 4 is pasted on the inner surface of the cleaning funnel 3 to play a supporting and sealing role, a through hole is opened at the bottom of the sealing gasket 4 and is aligned with the bell mouth of the cleaning funnel 3, the sealing gasket 4 is used to press against the top opening of the cleaned sand core funnel 1, and the cleaned drainage outlet is sealed and connected to the suction filter bottle 5.

[0041] The sealing gasket 4 is a funnel-shaped structure, including a trumpet-shaped gasket and a sealing base, wherein the sealing base is located at the end along the contraction direction of the trumpet-shaped gasket, the trumpet-shaped gasket is fitted with the inner wall of the cleaning funnel 3, and a through hole is opened in the center of the sealing base. The trumpet-shaped structure can be used for cleaning funnels of different sizes. This component needs to be adhered to the inner surface of the cleaning funnel 3 with a strong glue when in use.

[0042] The top of the suction bottle 5 is provided with a sealing plug 7 to seal the suction bottle 5 and the cleaning funnel 3. The drainage outlet of the cleaning funnel 3 is inserted into the sealing plug 7 and sealed, and the air suction port located on the suction bottle 5 is connected to the external air suction device. During cleaning, the vacuum pipe of the vacuum pump is connected to the suction port 6 to form a vacuum state in the cleaning system, and then the cleaning liquid that passes through the sand core funnel 1 is collected in the bottle.

[0043] It also includes a U-shaped sealing ring 15, which is clamped with the top opening of the sand core funnel 1 to be cleaned, and is used to seal tightly with the sealing gasket 4. The U-shaped sealing ring 15 is made of soft silicone. When the sand core funnel 1 is backwashed, the sealing ring is buckled on the wall of the sand core funnel 1, and then the height of the sand core funnel 1 is lowered to make it closely contact with the sealing gasket 4, and together play a sealing role during vacuum cleaning.

[0044] It also includes a fixing frame 17, on which a funnel fixing clamp 2 is provided. The funnel fixing clamp 2 is used to clamp the cleaned sand core funnel 1. A clamping structure is provided between the fixing frame 17 and the funnel fixing clamp 2, and the clamping structure presses the clamped sand core funnel 1 against the sealing gasket 4.

[0045] The clamping structure includes a telescopic cylinder 9, one end of which is fixedly arranged on a fixing frame 17, and a driving end of the telescopic cylinder 9 is connected to the funnel fixing clamp 2. Specifically, the component is composed of a cylinder sleeve 11 that can move up and down, a top limit stop 12, a retraction spring 10, a compressed air inlet 13 and an exhaust port 14. The height of the sand core funnel 1 is adjusted by inflating and exhausting the telescopic cylinder 9. When the telescopic cylinder 9 is inflated, the air pressure in the cylinder increases to lift the cylinder sleeve 11, and the height of the sand core funnel 1 increases; when the telescopic cylinder 9 is exhausted, the cylinder sleeve 11 falls back due to the deadweight of the cylinder body and the pulling and shrinking of the retraction spring 10, and the height of the sand core funnel 1 decreases.

[0046] The funnel fixing clamp 2 adopts a clamp structure and is used to fix the sand core funnel 1 during cleaning. When in use, first loosen the butterfly screw 16, then put the sand core funnel 1 into the fixing clamp and tighten the butterfly screw 16 to fix the sand core funnel 1 on the fixing clamp. The funnel fixing clamp 2 is rotatably arranged with the clamping structure, and a rotation locking structure is arranged on the funnel fixing clamp 2. The rotation locking structure is a rotating lock buckle 8, one end of which is fixedly connected to the clamping structure, and one end of the funnel fixing clamp 2 is rotatably arranged in the rotating lock buckle, and the funnel fixing clamp 2 is locked by the butterfly screw 16 on the rotating lock buckle.

[0047] The working principle of the device is described below.

[0048] Installation of the sand core funnel 1: first place the cleaning funnel 3, the sealing pad 4, the suction bottle 5 and the sealing plug 7 on the fixing frame 17, and inflate the telescopic cylinder 9 through the compressed air inlet 13 to raise the cylinder. Buckle the U-shaped sealing ring 15 on the edge of the sand core funnel 1, then place the sand core funnel 1 vertically downward, fix the sand core funnel 1 with the funnel fixing clip 2, and tighten the butterfly screw 16 of the funnel fixing clip 2.

[0049] Backwashing of the sand core funnel 1: Slowly open the exhaust port 14 to slowly discharge the gas in the telescopic cylinder 9, and slowly lower the cylinder sleeve 11. Stop exhausting after the sand core funnel 1, U-shaped sealing ring 15 and sealing gasket 4 are in close contact. Then connect the vacuum pump to the suction port 6, start the vacuum pump, adjust the vacuum value of the vacuum pump to 0.8-0.9bar, use a measuring cup to slowly add water from the top of the sand core funnel 1, and adjust the speed of adding water according to the speed of suction. When the amount of cleaning water reaches 5 liters, the cleaning is finished. Slowly open the compressed air inlet 13 to raise the cylinder sleeve 11 and raise the sand core funnel 1.

[0050] Positive cleaning of the sand core funnel 1: loosen the butterfly screw 16 of the rotating lock 8, rotate the sand core funnel 1 180 degrees, and then tighten the butterfly screw 16 of the rotating lock 8. Slowly open the exhaust port 14 to slowly discharge the gas in the telescopic cylinder 9, and slowly lower the cylinder sleeve 11. Stop exhausting after the sand core funnel 1 is inserted into the hole at the bottom of the sealing gasket 4 and in close contact. Then connect the vacuum pump to the suction port 6, start the vacuum pump, adjust the vacuum value to 0.8-0.9bar, and then slowly add water to the sand core funnel 1, and adjust the speed of adding water according to the speed of the suction. The cleaning is completed after the cleaning water volume reaches 5 liters. Slowly open the compressed air inlet 13 to raise the cylinder sleeve 11, raise the sand core funnel 1, loosen the butterfly screw 16 of the funnel fixing clamp 2, remove the cleaned sand core funnel 1, and the cleaning is completed.

[0051] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A sand core funnel forward and reverse washing cleaning device, characterized in that: include: Cleaning the funnel (3), the sealing gasket (4) and the suction filtration bottle (5); The sealing gasket (4) is arranged on the inner wall of the cleaning funnel (3); a through hole is provided at the bottom of the sealing gasket (4) and is aligned with the bell mouth of the cleaning funnel (3); the sealing gasket (4) is used to press against the top opening of the sand core funnel (1) to be cleaned; and the drainage outlet of the cleaning funnel is sealed and connected to the suction bottle (5).

2. The sand core funnel forward and reverse washing cleaning device according to claim 1, characterized in that: The sealing gasket (4) is a funnel-shaped structure, comprising a trumpet-shaped gasket and a sealing base, wherein the sealing base is located at a port along the contraction direction of the trumpet-shaped gasket, the trumpet-shaped gasket is fitted with the inner wall of the cleaning funnel (3), and a through hole is opened in the center of the sealing plug (7).

3. The sand core funnel forward and reverse washing cleaning device according to claim 1, characterized in that: A sealing plug (7) is provided on the top of the suction filtration bottle (5), the liquid discharge outlet of the cleaning funnel (3) is inserted into the sealing plug (7) and sealed, and the air suction port located on the body of the suction filtration bottle (5) is connected to an external air suction device.

4. The sand core funnel forward and reverse washing cleaning device according to claim 1, characterized in that: It also comprises a U-shaped sealing ring (15), wherein the U-shaped sealing ring (15) is clamped with the top opening of the cleaned sand core funnel (1) and is used for tightly sealing with the sealing gasket (4).

5. The sand core funnel forward and reverse washing cleaning device according to claim 1, characterized in that: It also comprises a fixing frame (17), on which a funnel fixing clamp (2) is arranged, and the funnel fixing clamp (2) is used to clamp the cleaned sand core funnel (1), and a clamping structure is arranged between the fixing frame (17) and the funnel fixing clamp (2), and the clamping structure presses the clamped sand core funnel (1) against the sealing gasket (4).

6. The sand core funnel forward and reverse washing cleaning device according to claim 5, characterized in that: The clamping structure comprises a telescopic cylinder (9), one end of which is fixedly arranged on a fixing frame (17), and a driving end of the telescopic cylinder (9) is connected to the funnel fixing clamp (2).

7. The sand core funnel forward and reverse washing cleaning device according to claim 5, characterized in that: The funnel fixing clamp (2) adopts a clamp structure.

8. The sand core funnel forward and reverse washing cleaning device according to claim 5, characterized in that: The funnel fixing clamp (2) is rotatably arranged with the pressing structure, and a rotation locking structure is arranged on the funnel fixing clamp (2).

9. The sand core funnel forward and reverse washing cleaning device according to claim 8, characterized in that: The rotation locking structure is a rotation lock (8), one end of the rotation lock (8) is fixedly connected to the clamping structure, one end of the funnel fixing clamp (2) is rotationally arranged in the rotation lock (8), and the funnel fixing clamp (2) is locked by a butterfly screw (16) on the rotation lock (8).

10. The sand core funnel forward and reverse washing cleaning device according to claim 5, characterized in that: It also includes a retraction spring (10), wherein the retraction spring (10) is respectively connected to the fixing frame (17) and the pressing structure.

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