Strengthened and lengthened bottom-pasted paper bag
By introducing a combination structure of pillars, collars, bars and threaded blocks into the valve bags, the problem of valve bags easily bursting during transportation is solved, and stable transportation and convenient filling of paper bags are achieved.
Patent Information
- Application Number
- CN202422534640.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing valve bags are prone to bursting due to gas impact during transportation, resulting in unstable packaging.
A reinforced and extended bottom paper bag is designed, which includes a protective device and an extension device. Through the combination of pillars, rings, baffles and threaded blocks, a stable support structure is formed to prevent the paper bag from bursting during transportation, and the extension tube and sealing ring are used to improve the filling convenience.
It effectively prevents paper bags from bursting during transportation, improves packaging stability and service life, and facilitates the use of filling equipment at different heights, reducing the risk of leakage.
Smart Images

Figure CN223356315U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material packaging, in particular to a reinforced and lengthened bottom sticker bag. Background Art
[0002] Valve bags, commonly known as paste-bottom bags, are an internationally popular packaging bag. It feeds materials from a valve port at the top or bottom and is filled using specialized filling equipment. After filling, the bag forms a cube, and the stacking is neat and beautiful. It is an environmentally friendly bag. The design of the valve bag improves packaging efficiency, facilitates transportation, and has the characteristics of high firmness and low breakage rate. A reinforced cover paper made of kraft paper is affixed to the bottom of the valve bag, and an insertion port with a valve port is left at one end of the upper corner of the bag for the filling path during high-speed filling of materials. The bottom valve port design of this packaging bag facilitates the process of filling materials, and the sealing is simple and easy. Valve bags are widely used in multiple industries. Due to their convenience of use, easy storage, and wide range of applications, they have been widely used in recent years. With the development of society, paper bags are used when materials need to be packaged.
[0003] Existing equipment, such as CN218705229U, discloses a novel valve bag comprising a valve bag body with a feed cuff disposed within the upper bottom of the valve bag body. The valve bag body is formed by folding an EVOH layer, a non-woven fabric layer, and a PET layer. Reinforcement layers are provided within the upper and lower bottoms of the valve bag body. The feed cuff is disposed on the reinforcing layer within the upper bottom. Connecting outer layers are provided on both the upper and lower bottoms. A hot-melt adhesive ring is provided on the inner side of the outer end of the feed cuff. A dotted area is provided on the EVOH layer, a microporous area is provided on the PET layer above the dotted area, and a non-woven fabric venting area is provided on the non-woven fabric layer. The microporous area, the non-woven fabric venting area, and the dotted area constitute a one-way venting area, which is disposed along the length of the valve bag body. This utility model features rapid heat sealing and allows for venting without leaking powder.
[0004] When workers need to package materials, they fill the materials into paper bags so that they can use the paper bags to package the materials. However, the paper bags will be squeezed by other products during transportation, causing the gas inside the paper bags to continuously impact the paper bags, which will cause the paper bags to burst. Utility Model Content
[0005] The utility model aims to solve the defect of the paper bag in the prior art that it may burst, and proposes a reinforced and lengthened bottom paper bag.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a reinforced and elongated bottom paper bag, comprising a storage bag, a feed port and a protective device, the feed port being installed on the surface of the storage bag, the protective device being arranged on the surface of the storage bag, the protective device comprising a bottom plate, the bottom plate being placed on the surface of the storage bag, the surface of the bottom plate being fixedly connected with four pillars, the four pillars being symmetrically arranged, the storage bag being plugged into the surface of the pillar, the surface of the pillar being sleeved with a ring, the surface of the ring being provided with a threaded hole, the inner surface of the threaded hole being threadedly connected with a threaded block, the threaded block being plugged into the inner surface of the pillar, the surface of the bottom plate being provided with a receiving hole, the two receiving holes being symmetrically arranged, and the receiving holes can cooperate with the bottom plate to achieve the purpose of receiving the baffle.
[0007] Preferably, a baffle is fixedly connected to the surface of the collar, the bottom end of the baffle is plugged into the inner surface of the storage hole, and the baffle is plugged into the surface of the storage bag. The baffle can cooperate with the collar to achieve the purpose of fixing the baffle.
[0008] Preferably, the surface of the feed port is provided with an extension device, and the extension device includes an extension tube, and the extension tube is placed on the surface of the feed port, and the extension tube is communicated with the feed port, and a sealing ring is fixedly connected to the surface of the feed port, and a receiving groove is provided on the surface of the extension tube, and the sealing ring is plugged into the surface of the receiving groove, and the receiving groove of the extension tube can cooperate with the sealing ring of the feed port to achieve the purpose of preventing material leakage.
[0009] Preferably, the surfaces of the feed port and the extension tube are provided with anti-slip holes, and the two groups of anti-slip holes are symmetrically arranged. A placement plate is placed on the surface of the feed port and the extension tube, and an insert block is fixedly connected to the lower surface of the placement plate. The insert block is plugged into the inner surface of the anti-slip hole, and the anti-slip hole can cooperate with the insert block and the placement plate to achieve the purpose of restricting the extension tube.
[0010] Preferably, the surface of the extension tube is fixedly connected to a guide plate, the inner surface of the guide plate is slidably connected to a slide rod, the slide rod is fixedly connected to the surface of the placement plate, the inner surface of the extension tube is threadedly connected to a positioning rod, and the positioning rod is plugged into the inner surface of the slide rod. The guide plate can cooperate with the extension tube, the positioning rod and the slide rod to achieve the purpose of limiting the placement plate.
[0011] Compared with the prior art, the advantages and positive effects of the present invention are:
[0012] In the utility model, by setting a protective device, when workers transport products, the paper bag is effectively protected from bursting. The equipment is used, and the equipment stores materials to achieve the purpose of packaging materials. The storage bag is placed on the bottom plate, and the pillar supports the storage bag. The ring is set on the pillar, and the ring pushes the baffle, and the baffle is inserted into the storage hole. The threaded block is rotated, and the threaded hole guides the threaded block, and the threaded block is inserted into the pillar. By setting the protective device, contact between products is avoided, which is conducive to long-term transportation of products, reduces the possibility of products being crushed during transportation, and increases the service life of the paper bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the reinforced and elongated bottom sticker bag proposed in the utility model;
[0014] Figure 2 This is a schematic diagram of the protective device structure of the reinforced and elongated bottom sticker bag proposed in the utility model;
[0015] Figure 3 The utility model proposes a reinforced and lengthened bottom sticker bag Figure 2 Schematic diagram of the structure at A in the middle;
[0016] Figure 4 This is a schematic diagram of the structure of the extension device of the reinforced and lengthened bottom sticker bag proposed in the utility model;
[0017] Figure 5 The utility model proposes a reinforced and lengthened bottom sticker bag Figure 4 Schematic diagram of the structure at point B in the middle.
[0018] Legend:
[0019] 1. Storage bag; 2. Feed inlet; 3. Protective device; 31. Storage hole; 32. Bottom plate; 33. Baffle; 34. Threaded block; 35. Support; 36. Ring; 37. Threaded hole; 4. Extension device; 41. Placement plate; 42. Insert block; 43. Anti-slip hole; 44. Sealing ring; 45. Sliding rod; 46. Storage slot; 47. Positioning rod; 48. Guide plate; 49. Extension tube. DETAILED DESCRIPTION
[0020] See also Figure 1-5 The utility model provides a technical solution: a reinforced and elongated bottom sticker bag, comprising a storage bag 1, a feed port 2 and a protective device 3, the feed port 2 is installed on the surface of the storage bag 1, and the protective device 3 is arranged on the surface of the storage bag 1.
[0021] The specific settings and functions of the protective device 3 and the extension device 4 are described in detail below.
[0022] In this embodiment: the protective device 3 includes a base plate 32, the base plate 32 is placed on the surface of the storage bag 1, and four pillars 35 are fixedly connected to the surface of the base plate 32. The four pillars 35 are symmetrically arranged, and the storage bag 1 is plugged into the surface of the pillars 35. The surface of the pillar 35 is sleeved and connected with a ring 36. The surface of the ring 36 is provided with a threaded hole 37. The inner surface of the threaded hole 37 is threadedly connected with a threaded block 34, and the threaded block 34 is plugged into the inner surface of the pillar 35.
[0023] Specifically, a receiving hole 31 is opened on the surface of the bottom plate 32 , and the two receiving holes 31 are symmetrically arranged. The receiving holes 31 can cooperate with the bottom plate 32 to achieve the purpose of receiving the blocking bar 33 .
[0024] Specifically, a blocking bar 33 is fixedly connected to the surface of the collar 36 , the bottom end of the blocking bar 33 is plugged into the inner surface of the receiving hole 31 , and the blocking bar 33 is plugged into the surface of the storage bag 1 .
[0025] In this embodiment, the blocking bar 33 can cooperate with the collar 36 to achieve the purpose of fixing the blocking bar 33 .
[0026] In this embodiment: an extension device 4 is provided on the surface of the feed port 2, the extension device 4 includes an extension tube 49, the extension tube 49 is placed on the surface of the feed port 2, the extension tube 49 is communicated with the feed port 2, a sealing ring 44 is fixedly connected to the surface of the feed port 2, a receiving groove 46 is provided on the surface of the extension tube 49, the sealing ring 44 is plugged into the surface of the receiving groove 46, and the receiving groove 46 of the extension tube 49 can cooperate with the sealing ring 44 of the feed port 2 to achieve the purpose of preventing material leakage.
[0027] Specifically, anti-slip holes 43 are provided on the surfaces of the feed port 2 and the extension tube 49, and the two groups of anti-slip holes 43 are symmetrically arranged. A placement plate 41 is placed on the surface of the feed port 2 and the extension tube 49, and an insert block 42 is fixedly connected to the lower surface of the placement plate 41, and the insert block 42 is plugged into the inner surface of the anti-slip hole 43.
[0028] In this embodiment, the anti-slip hole 43 can cooperate with the insert block 42 and the placement plate 41 to achieve the purpose of restricting the extension tube 49.
[0029] Specifically, the surface of the extension tube 49 is fixedly connected to the guide plate 48, the inner surface of the guide plate 48 is slidably connected to the slide rod 45, the slide rod 45 is fixedly connected to the surface of the placement plate 41, and the inner surface of the extension tube 49 is threadedly connected to the positioning rod 47, which is plugged into the inner surface of the slide rod 45.
[0030] In this embodiment, the guide plate 48 can cooperate with the extension tube 49 , the positioning rod 47 , and the sliding rod 45 to achieve the purpose of limiting the placement plate 41 .
[0031] Working principle: By setting up the protective device 3, when the worker transports the product, the paper bag is effectively protected from bursting. The device is used to store materials to achieve the purpose of packaging materials. The storage bag 1 is placed on the bottom plate 32, and the pillar 35 supports the storage bag 1. The ring 36 is set on the pillar 35, and the ring 36 pushes the blocking bar 33. The blocking bar 33 is inserted into the storage hole 31. The threaded block 34 is rotated, and the threaded hole 37 guides the threaded block 34. The threaded block 34 is inserted into the pillar 35. By setting up the protective device 3, contact between products is avoided, which is conducive to long-term transportation of products, reduces the situation of products being crushed during transportation, and improves The service life of the paper bag is extended. In addition, by setting up the extension device 4, when the worker uses filling equipment of different heights to fill the paper bag, it is effectively convenient for the worker to fill the paper bag and use the equipment. The equipment stores the material to achieve the purpose of packaging the material. The extension tube 49 is docked with the feed port 2, and the storage groove 46 is sleeved on the sealing ring 44. The placement plate 41 is pushed, and the placement plate 41 pushes the insert block 42. The insert block 42 is inserted into the anti-slip hole 43. The positioning rod 47 is rotated and the positioning rod 47 is inserted into the slide rod 45. By setting up the extension device 4, it is convenient for the worker to fill the paper bag, which improves the applicability of the paper bag and reduces the leakage of the filling equipment during filling.
Claims
1. A reinforced and elongated bottom sticker bag, comprising a storage bag (1), a feed port (2) and a protective device (3), characterized in that: The feed port (2) is mounted on the surface of the storage bag (1), and the protective device (3) is arranged on the surface of the storage bag (1). The protective device (3) comprises a bottom plate (32), and the bottom plate (32) is placed on the surface of the storage bag (1). Four pillars (35) are fixedly connected to the surface of the bottom plate (32), and the four pillars (35) are symmetrically arranged. The storage bag (1) is plugged into the surface of the pillars (35), and the surface of the pillars (35) is sleeved with a collar (36), and the surface of the collar (36) is provided with a threaded hole (37). The inner surface of the threaded hole (37) is threadedly connected with a threaded block (34), and the threaded block (34) is plugged into the inner surface of the pillar (35).
2. The reinforced and elongated bottom sticker bag according to claim 1, characterized in that: The surface of the bottom plate (32) is provided with a receiving hole (31), and the two receiving holes (31) are symmetrically arranged.
3. The reinforced and elongated bottom sticker bag according to claim 2, characterized in that: A retaining bar (33) is fixedly connected to the surface of the collar (36), the bottom end of the retaining bar (33) is plugged into the inner surface of the receiving hole (31), and the retaining bar (33) is plugged into the surface of the storage bag (1).
4. The reinforced and elongated bottom sticker bag according to claim 1, characterized in that: The surface of the feed port (2) is provided with an extension device (4), and the extension device (4) includes an extension tube (49). The extension tube (49) is placed on the surface of the feed port (2), and the extension tube (49) is communicated with the feed port (2). A sealing ring (44) is fixedly connected to the surface of the feed port (2), and a receiving groove (46) is opened on the surface of the extension tube (49), and the sealing ring (44) is plugged into the surface of the receiving groove (46).
5. The reinforced and elongated bottom sticker bag according to claim 4, characterized in that: The surfaces of the feed port (2) and the extension tube (49) are both provided with anti-slip holes (43), and the two groups of anti-slip holes (43) are symmetrically arranged. A placement plate (41) is placed on the surfaces of the feed port (2) and the extension tube (49), and an insert block (42) is fixedly connected to the lower surface of the placement plate (41), and the insert block (42) is plugged into the inner surface of the anti-slip hole (43).
6. The reinforced and elongated bottom sticker bag according to claim 5, characterized in that: The surface of the extension tube (49) is fixedly connected to a guide plate (48), the inner surface of the guide plate (48) is slidably connected to a slide rod (45), the slide rod (45) is fixedly connected to the surface of the placement plate (41), the inner surface of the extension tube (49) is threadedly connected to a positioning rod (47), and the positioning rod (47) is plugged into the inner surface of the slide rod (45).