Wall scraping type square bottom valve bag

Abstract

The utility model discloses a wall scraping type square bottom valve bag, and particularly relates to the technical field of valve bags, the wall scraping type square bottom valve bag comprises a bag body, a supporting plate is arranged in the bag body, the supporting plate is located at the bottom end in the bag body in the using process, a wall scraping assembly is arranged on the supporting plate, and the wall scraping assembly comprises a hollow outer frame fixedly arranged at the outer end of the supporting plate. An elastic annular air bag is fixedly arranged at the outer end of the hollow outer frame, and two layers of rubber scraping pieces are fixedly arranged at the outer end of the elastic annular air bag. According to the wall scraping device, air is conveyed to the wall scraping assembly, finally, the elastic annular air bag is expanded in an inflation mode till the rubber scraping piece makes close contact with the inner wall of the bag body, then the wall scraping assembly is pulled to conduct wall scraping, the rubber scraping piece makes close contact with the inner wall of the bag body, the wall scraping effect is improved, wall scraping is more sufficient, and the service life of the wall scraping device is prolonged. And material residues are further reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve bag technology, and more specifically to a scraper-type square-bottom valve bag. Background Technology

[0002] Valve bags, also known as bottom-sealed bags, are a popular type of packaging bag internationally. They are fed from the top or bottom valve and automatically form a cuboid after being filled with material. They are commonly used for packaging powdery and granular materials in building materials, chemicals, and food products.

[0003] Material inside the valve bag tends to adhere to the inner wall of the bag after being poured out, resulting in residue and waste. To address this, scraper-type valve bags have emerged in the prior art, such as a scraper-type square bottom valve bag with publication number CN215708411U.

[0004] The scraper-type valve bag uses a built-in structure to slide and rub against the inner wall of the bag, thereby scraping off the residual material on the inner wall of the bag.

[0005] However, the valve bag is made of flexible material, which will bend and deform under stress. The existing scraping structure is difficult to ensure close contact with the inner wall of the bag, which makes it difficult to ensure the scraping effect, resulting in insufficient scraping. Furthermore, the scraping structure made of rigid material is very easy to cause damage to the bag when it rubs against the bag, resulting in poor performance. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a scraping-type square bottom valve bag. By inflating the elastic annular air bladder until the rubber scraper is in close contact with the inner wall of the bag, and then pulling the scraping component to scrape the wall, the scraping effect is improved and the scraping is more thorough.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a scraper-type square bottom valve bag, comprising a bag body, wherein a tray is provided inside the bag body, the tray is located at the bottom of the bag body during use, the material is placed on the top of the tray, and a scraper assembly is provided on the tray.

[0008] The wall scraping assembly includes a hollow outer frame fixedly mounted on the outer end of the support plate. An elastic annular airbag is fixedly mounted on the outer end of the hollow outer frame. Two layers of rubber scrapers are fixedly mounted on the outer end of the elastic annular airbag. Multiple air guide holes are opened on the outer end of the hollow outer frame, located inside the elastic annular airbag. The elastic annular airbag and the hollow outer frame are connected through the air guide holes. Four lifting air tubes for inflation are fixedly mounted on the top of the hollow outer frame, and the lifting air tubes are connected to the interior of the hollow outer frame.

[0009] Furthermore, four insertion tubes are fixedly provided at the top of the bag body, and the tops of the four lifting air tubes extend to the top of the bag body through the four insertion tubes respectively. A fixing block is fixedly provided at the outer end of the lifting air tube. The fixing block is located above the corresponding insertion tube. Before scraping the wall, a connecting sleeve is provided at the outer end of the connection between the insertion tube and the fixing block. The connecting sleeve is connected to the fixing block and the insertion tube by threads.

[0010] Furthermore, the four lifting air tubes are divided into two groups, left and right, with two lifting air tubes in each group. An inflation handle is provided between the two lifting air tubes in the same group. The inflation handle includes a central tube, and the top ends of the two lifting air tubes in the same group are fixedly connected to the two ends of the central tube, respectively.

[0011] An air bladder is fixedly provided at the outer end of the central tube, and multiple ventilation holes are opened at the outer end of the central tube. The ventilation holes are located inside the air bladder, and the central tube and the air bladder are connected through the ventilation holes.

[0012] Furthermore, two pads are fixedly provided at the bottom of the bag body. The pads can separate the bottom of the bag body from the ground and reduce the risk of the material inside the bag body getting damp. A main handle is fixedly provided at the top of the bag body, and an auxiliary handle is fixedly provided on one side of the bag body. The auxiliary handle is close to the bottom of the bag body.

[0013] Furthermore, a plurality of horizontally arranged valve channels are fixedly provided on the other side of the bag body. The valve channels communicate with the inside of the bag body and are located near the top of the bag body.

[0014] Furthermore, a fixing loop is provided on one side of the bag body, the fixing loop includes a rigid fixing piece fixed to the other side of the bag body, and a compression rubber strip is provided on the side of the rigid fixing piece away from the bag body, one end of the compression rubber strip is fixedly connected to one end of the rigid fixing piece;

[0015] The fixing loop also includes a snap fastener. The other end of the extruded rubber strip and the other end of the rigid fixing plate are connected by the snap fastener. When the valve port channel is in a closed state, the open end of the valve port channel hangs down and is clamped between the rigid fixing plate and the extruded rubber strip.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model delivers air to the scraping component by squeezing the inflation handle, which inflates the elastic annular airbag through the lifting air tube until the rubber scraper is in close contact with the inner wall of the bag. Then, the scraping component is pulled to scrape the wall, which improves the scraping effect and makes the scraping more thorough, thus further reducing material residue.

[0018] 2. Material residue is scraped off by rubbing a soft rubber scraper against the inner wall of the bag. The friction between the rubber scraper and the inner wall of the bag has a buffering effect, preventing the bag from being damaged due to friction. Attached Figure Description

[0019] Figure 1 This is a right-side structural view of the present invention;

[0020] Figure 2 This is a left-side structural view of the present invention;

[0021] Figure 3 For the present utility model Figure 1 Enlarged view of section A in the middle;

[0022] Figure 4 This is a schematic diagram showing the connection state of the fixing block and the insertion tube of this utility model;

[0023] Figure 5 This is a structural diagram of the internal structure of the bag body of this utility model;

[0024] Figure 6 This is a side sectional view of the pallet and scraper assembly of this utility model;

[0025] Figure 7 This is a diagram showing the internal structure of the inflatable handle of this utility model;

[0026] Figure 8 This is a structural diagram of the fixing loop of this utility model.

[0027] The attached diagram is labeled as follows: 1. Bag body; 2. Valve port channel; 3. Inflation handle; 301. Central tube; 302. Airbag; 303. Vent hole; 4. Main handle; 5. Fixing loop; 501. Rigid fixing piece; 502. Extruded rubber strip; 503. Snap fastener; 6. Auxiliary handle; 7. Lifting air tube; 701. Fixing block; 702. Connecting sleeve; 703. Insertion tube; 8. Support plate; 9. Wall scraping assembly; 901. Hollow outer frame; 902. Air guide hole; 903. Elastic annular airbag; 904. Rubber scraper; 10. Pad block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Refer to the instruction manual appendix Figures 1-8 This utility model provides a scraper-type square bottom valve bag, including a bag body 1. The bag body 1 is provided with a tray 8 inside. During use, the tray 8 is located at the bottom inside the bag body 1, and the material is placed on the top of the tray 8. The tray 8 is provided with a scraper component 9.

[0030] The wall scraping assembly 9 includes a hollow outer frame 901 fixedly mounted on the outer end of the support plate 8. An elastic annular airbag 903 is fixedly mounted on the outer end of the hollow outer frame 901. Two layers of rubber scrapers 904 are fixedly mounted on the outer end of the elastic annular airbag 903. Multiple air guide holes 902 located inside the elastic annular airbag 903 are opened on the outer end of the hollow outer frame 901. The elastic annular airbag 903 and the hollow outer frame 901 are connected through the air guide holes 902. Four lifting air tubes 7 for inflation are fixedly mounted on the top of the hollow outer frame 901. The lifting air tubes 7 are connected to the interior of the hollow outer frame 901.

[0031] After the material inside the bag 1 has been completely poured out, the material remaining on the inner wall of the bag 1 can be scraped off. Initially, the outer side of the scraping component 9 does not contact the inner wall of the bag 1, and there is a gap between them. When scraping, air is injected into the hollow outer frame 901 through the lifting air tube 7. The air entering the hollow outer frame 901 then enters the elastic annular airbag 903 through the air guide hole 902. The elastic annular airbag 903 is thus inflated and expands, causing the rubber scraper 904 at its outer end to move until the rubber scraper 904 is in close contact with the inner wall of the bag 1.

[0032] Subsequently, the lifting tube 7 is pulled upwards, which in turn moves the tray 8 and the wall scraping assembly 9 upwards inside the bag body 1. During the upward movement, the rubber scraper 904 rubs against the inner wall of the bag body 1 to scrape off the material remaining on the inner wall of the bag body 1, thus avoiding material residue and waste. This scraping method ensures that the rubber scraper 904 is in close contact with the inner wall of the bag body 1, improving the scraping effect and making the scraping more thorough. At the same time, the rubber scraper 904 is soft and elastic, and has a buffering effect when rubbing against the inner wall of the bag body 1, preventing the bag body 1 from being damaged due to friction.

[0033] The scraping process only begins after all the material inside bag 1 has been completely emptied. Under normal conditions, the tray 8 and the scraping assembly 9 need to be secured. Figure 3 , Figure 4 As shown, four insertion tubes 703 are fixedly provided at the top of the bag body 1. The tops of the four lifting air tubes 7 extend to the top of the bag body 1 through the four insertion tubes 703 respectively. A fixing block 701 is fixedly provided at the outer end of the lifting air tube 7. The fixing block 701 is located above the corresponding insertion tube 703. Before scraping the wall, a connecting sleeve 702 is sleeved on the outer end of the connection between the insertion tube 703 and the fixing block 701. The connecting sleeve 702 is connected to the fixing block 701 and the insertion tube 703 by threads.

[0034] Before the material is completely poured out, the connecting sleeve 702 is connected to the fixing block 701 and the insertion tube 703 by threads, and the fixing block 701 is fixed in this way, so that the lifting air tube 7 cannot be pulled up. When it is necessary to scrape the wall, the fixing block 701 and the insertion tube 703 remain stationary, and the connecting sleeve 702 is rotated. Under the action of the threads, the connecting sleeve 702 moves down and disengages from the fixing block 701, releasing the fixing of the fixing block 701. The lifting air tube 7 can then be pulled up and drive the support plate 8 and the wall scraping assembly 9 to perform wall scraping work.

[0035] In order to introduce air into the scraper assembly 9, such as Figure 1 , Figure 7 As shown, the four lifting air tubes 7 are divided into two groups, left and right, with two lifting air tubes 7 in each group. An inflation handle 3 is provided between the two lifting air tubes 7 in the same group. The inflation handle 3 includes a central tube 301. The top ends of the two lifting air tubes 7 in the same group are fixedly connected to the two ends of the central tube 301, respectively.

[0036] An airbag 302 is fixedly provided at the outer end of the central tube 301. A plurality of ventilation holes 303 are provided at the outer end of the central tube 301. The ventilation holes 303 are located inside the airbag 302. The central tube 301 and the airbag 302 are connected through the ventilation holes 303.

[0037] When scraping the wall, hold the two inflation handles 3 and use the strength of your palms to squeeze the two airbags 302. This compresses the air inside the airbags 302 and enters the central tube 301 through the vent 303. Then, the air in the central tube 301 flows to the scraping component 9 through the lifting air tube 7, and finally inflates the elastic ring airbag 903 to perform the scraping work. After the scraping is completed, release the airbags 302, causing them to rebound. The air at the scraping component 9 will return to the airbags 302 under negative pressure.

[0038] The materials stored inside bag 1 eventually need to be emptied and used, such as... Figure 1 , Figure 2 As shown, two pads 10 are fixedly provided at the bottom of the bag body 1. The pads 10 can separate the bottom of the bag body 1 from the ground to prevent the ground moisture and humidity from affecting the bag body 1 and reduce the risk of the material inside the bag body 1 getting damp. A main handle 4 is fixedly provided at the top of the bag body 1, and an auxiliary handle 6 is fixedly provided on one side of the bag body 1. The auxiliary handle 6 is close to the bottom of the bag body 1.

[0039] On the other side of the bag body 1, a plurality of horizontally arranged valve channels 2 are fixedly provided. The valve channels 2 communicate with the inside of the bag body 1 and are located near the top of the bag body 1.

[0040] Before the material is opened and used, the opening of the valve channel 2 is sealed with glue or sewing. After opening and use, the valve channel 2 is in an open state. When it is necessary to pour out the material, the operator holds the main handle 4 and the auxiliary handle 6 with both hands respectively, pulls the auxiliary handle 6 upward, and gradually lowers the position of the main handle 4, so that the bag body 1 tilts towards the valve channel 2. Under the action of gravity, the material flows towards the valve channel 2 and is finally discharged outward through the valve channel 2. This method is suitable for bags with a small capacity. If the bag body 1 has a large capacity and the material is heavy, it is difficult to lift the bag body 1 manually, then this method is not suitable.

[0041] To facilitate control of the speed of material discharge, such as Figure 1 , Figure 8 As shown, a fixing loop 5 is provided on one side of the bag body 1. The fixing loop 5 includes a rigid fixing piece 501 fixed on the other side of the bag body 1. A compression rubber strip 502 is provided on the side of the rigid fixing piece 501 away from the bag body 1. One end of the compression rubber strip 502 is fixedly connected to one end of the rigid fixing piece 501.

[0042] The fixing loop 5 also includes a snap fastener 503. The other end of the extruded rubber strip 502 and the other end of the rigid fixing piece 501 are connected by the snap fastener 503. When the valve port channel 2 is in a closed state, the open end of the valve port channel 2 hangs down and is clamped between the rigid fixing piece 501 and the extruded rubber strip 502.

[0043] Before opening or in an unused state after opening, the valve port channels 2 are folded side by side on one side of the bag body 1. The rigid fixing plate 501 and the extrusion rubber strip 502 are connected by snaps 503. The valve port channels 2 are clamped between the rigid fixing plate 501 and the extrusion rubber strip 502. At this time, the extrusion rubber strip 502 is in a taut state. Since the valve port channels 2 and the bag body 1 are made of the same soft material, clamping the valve port channels 2 can close the opening of the valve port channels 2. After releasing the connection between the snaps 503 and the rigid fixing plate 501 and the extrusion rubber strip 502, the closure of the valve port channels 2 will also be released. Therefore, before pouring the material, you can choose to release the closure of one or more valve port channels 2. In short, the more valve port channels 2 are open, the more channels there are when the material is poured out, and the faster the material is poured out. Conversely, the fewer channels are open, the slower the material is poured out. Therefore, you can adjust and control the pouring speed of the material as needed, making it more flexible and applicable to a wide range of situations.

[0044] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wall scraping square bottom valve pocket comprising a pocket body (1), characterized in that: The bag body (1) is internally provided with a supporting plate (8), and the supporting plate (8) is provided with a wall scraping assembly (9); The wall scraping assembly (9) comprises a hollow outer frame (901) fixed at the outer end of the supporting plate (8), an elastic annular air bag (903) fixed at the outer end of the hollow outer frame (901), two layers of rubber scraping blades (904) fixed at the outer end of the elastic annular air bag (903), and a plurality of air guide holes (902) formed at the outer end of the hollow outer frame (901) and located inside the elastic annular air bag (903), and four lifting air tubes (7) for inflation are fixed at the top end of the hollow outer frame (901).

2. A wall-wiping square bottom valve pocket according to claim 1, characterized in that: The bag body (1) is fixed with four insertion tubes (703) at the top end, the four lifting air tubes (7) extend to the top of the bag body (1) through the four insertion tubes (703) respectively, a fixed block (701) is fixed at the outer end of the lifting air tube (7), the fixed block (701) is located above the corresponding insertion tube (703), and a connecting sleeve (702) is sleeved at the outer end of the connection position of the insertion tube (703) and the fixed block (701).

3. A wall-wiping square valve pocket according to claim 1, wherein: The four lifting air tubes (7) are divided into two groups, and the number of the lifting air tubes (7) in each group is two; an inflation handle (3) is arranged between the two lifting air tubes (7) in the same group, and the inflation handle (3) comprises a center tube (301); the two lifting air tubes (7) in the same group are fixedly connected to the two ends of the center tube (301) respectively. An air bag (302) is fixed at the outer end of the center tube (301), a plurality of air permeable holes (303) are formed at the outer end of the center tube (301), the air permeable holes (303) are located inside the air bag (302), and the center tube (301) and the air bag (302) are communicated through the air permeable holes (303).

4. A wall scraping square bottom valve pocket according to claim 1, wherein: Two cushion blocks (10) are fixed at the bottom end of the bag body (1), a main handle (4) is fixed at the top end of the bag body (1), and an auxiliary handle (6) is fixed at one side of the bag body (1).

5. A wall-wiping square valve pocket according to claim 4, wherein: A plurality of valve port channels (2) are fixed at the other side of the bag body (1) in transverse arrangement, and the valve port channels (2) are communicated with the inside of the bag body (1).

6. A wall scraping square bottom valve pocket according to claim 5, wherein: A fixed loop (5) is arranged at one side of the bag body (1), the fixed loop (5) comprises a hard fixed sheet (501) fixed at the other side of the bag body (1), an extruded rubber strip (502) is arranged at the side of the hard fixed sheet (501) away from the bag body (1), and one end of the extruded rubber strip (502) is fixedly connected with one end of the hard fixed sheet (501); The fixed loop (5) further comprises a snap fastener (503), the other end of the extruded rubber strip (502) and the other end of the hard fixed sheet (501) are connected through the snap fastener (503), and the opening end of the valve port channel (2) is clamped between the hard fixed sheet (501) and the extruded rubber strip (502) after being hung down.

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