Durable nonwoven bag construction

Abstract

The utility model provides a kind of durable non-woven bag structure, including bag body, handle is connected on the lateral wall of bag body, support plate is connected on the bottom wall of bag body, wear plate is connected on the bottom of bag body, fixed peg is connected on the support plate, wear plate is screwed after being connected with wear plate by fixed peg passing through bag body, L-shaped plate is connected on the corner of wear plate, L-shaped plate extends to the opening direction of bag body, reinforcement area is enclosed between L-shaped plate and wear plate, the corner of bag body is in reinforcement area, reach the purpose of improving durability and practicality.

Description

Technical Field

[0001] This utility model relates to non-woven bags, and more particularly, to a durable non-woven bag structure. Background Technology

[0002] Currently, a utility model patent with Chinese authorization announcement number CN223438010U discloses an adjustable shoulder strap non-woven bag. This patent incorporates a bottom reinforcement mechanism to enhance the bottom strength of the non-woven bag. Its main components include a right-angle block and an X-shaped connecting block made of nylon material. In this prior art, the nylon reinforcement is glued to the non-woven bag body for fixation.

[0003] This method of connection, relying solely on adhesives, has significant technical drawbacks. Because the right-angle blocks and X-shaped connecting blocks are made of high-strength nylon, the adhesion between them and the soft non-woven fabric is poor. During use, the load-bearing tension of the non-woven bag, moisture erosion from the ground, dust penetration, and frequent bottom friction all rapidly cause the adhesive to age and fail.

[0004] Therefore, the nylon parts of the bottom reinforcement mechanism are prone to loosening and eventually falling off after several uses, which seriously affects the durability and practicality of the non-woven bag. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a durable non-woven bag structure to improve durability and practicality.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a durable non-woven bag structure, including a bag body, a handle connected to the side wall of the bag body, a support plate connected to the bottom wall of the bag body, a wear-resistant plate connected to the bottom of the bag body, a fixing bolt connected to the support plate, the fixing bolt passing through the bag body and being threadedly connected to the wear-resistant plate, an L-shaped plate connected to the corner of the wear-resistant plate, the L-shaped plate extending towards the opening of the bag body, the L-shaped plate and the wear-resistant plate forming a reinforcement area, and the corner of the bag body located in the reinforcement area.

[0007] To achieve the above technical solution, the support plate and the wear-resistant plate are respectively attached to the inner and outer sides of the bottom wall of the bag. Fixing bolts penetrate the bottom wall of the bag, and the support plate and wear-resistant plate are mechanically fastened using threads. This structure firmly clamps the bottom wall of the bag between the support plate and the wear-resistant plate, forming a high-strength composite load-bearing bottom surface. Simultaneously, L-shaped plates extending from the wear-resistant plate physically cover the corner areas of the bag, surrounding and fixing the most stress-prone corners within the reinforced area. Through the rigid support plate, the wear-resistant plate, and the L-shaped plates covering the corners, combined with the locking effect of the fixing bolts, the bottom of the bag is structurally reinforced. This replaces the weak adhesives used in the prior art, providing superior connection strength and tensile strength. At the same time, the wear-resistant plate and L-shaped plate effectively resist external friction and impact, greatly improving the load-bearing capacity, structural stability, and durability of the non-woven bag.

[0008] As a preferred embodiment of this utility model, the fixing bolts are multiple and are respectively close to the corners of the bag body.

[0009] To achieve the above technical solution, the corners are critical areas of stress concentration when the bag is under load. By reinforcing the distribution of fixing bolts at the corners, the clamping force of the support plate and wear-resistant plate in these high-stress areas is made more uniform and secure. This significantly enhances the tear resistance and structural integrity of the bag corners, ensuring the connection stability of the bottom reinforcement structure under extreme load conditions.

[0010] In a preferred embodiment of this utility model, an installation hole is provided on the side wall of the bag body, a positioning plate is fixedly connected to the inner wall of the bag body, a positioning tube passing through the installation hole is fixed on the positioning plate, a support rod is inserted through the positioning tube, an elastic structure is provided between the positioning tube and the support rod, a limiting structure is provided on the positioning plate to restrict the rotation of the support rod, one end of the handle is fixed to the outer wall of the bag body, and the other end of the handle is fixed to the outer wall of the support rod; the support rod moves along its own length direction and then rotates to wind or unwind the handle, and the support rod is positioned by the limiting structure after resetting.

[0011] To achieve the above technical solution, when the handle length needs to be adjusted, the user first applies force along the axial direction of the support rod, causing it to overcome the elastic structure and disengage from the locking mechanism. Then, by rotating the support rod, its outer wall drives the other end of the handle to rotate synchronously, thus allowing the handle to be wound or unwound on the support rod. After adjusting to the desired length, the user releases the axial force, and the support rod automatically resets under the action of the elastic structure, and is then repositioned and locked by the locking mechanism, fixing the handle length. This provides a flexible and adjustable handle mechanism that can adapt to the needs of users of different heights or different carrying methods. The locking structure ensures the stability of the adjusted length, while the elastic structure simplifies the reset process, significantly improving the functionality, convenience, and applicability of the non-woven bag.

[0012] As a preferred embodiment of this utility model, the elastic structure includes an elastic element, a fixing ring, and a pressure ring. The fixing ring is fixed to the inner wall of the positioning tube, the pressure ring is fixed to the outer wall of the support rod, the elastic element is disposed between the pressure ring and the fixing ring, and a limiting ring for preventing the pressure ring from falling out of the positioning tube is fixed to the end of the positioning tube.

[0013] To achieve the above technical solution, when the support rod moves axially, the pressure ring fixed to it will synchronously displace relative to the fixed ring inside the positioning tube. This displacement will compress the elastic element located between the pressure ring and the fixed ring, allowing the elastic element to store elastic potential energy. When the axial external force is released, the restoring force of the elastic element will push the pressure ring, thereby causing the support rod to automatically reset. The limiting ring always acts as a physical barrier, ensuring that the pressure ring will not come out of the positioning tube under any working condition.

[0014] As a preferred embodiment of this utility model, the limiting structure includes a limiting shaft and a limiting groove. The limiting groove is formed on the positioning plate and communicates with the inner wall of the positioning tube. The limiting shaft is fixed on the outer wall of the support rod and is used to be embedded in the limiting groove.

[0015] To achieve the above technical solution, when the support rod is in the reset state, the limiting shaft fixed to its outer wall is precisely embedded in the limiting groove of the positioning plate, and this engagement prevents the support rod from rotating. When the handle needs to be adjusted, the support rod must first move axially to completely disengage the limiting shaft from the limiting groove; after the rotation adjustment is completed, the support rod returns to its axial reset position, and the limiting shaft also retracts and precisely engages again in the limiting groove, completing the locking process.

[0016] In a preferred embodiment of this utility model, a first receiving ring and a second receiving ring are fixedly connected to the outer wall of the support rod, and the handle is located between the first receiving ring and the second receiving ring.

[0017] To achieve the above technical solution, the first and second receiving rings together define an installation area of ​​a specific width on the outer wall of the support rod. The end of the handle that needs to be wound or unwound is installed and strictly confined between these two receiving rings. These two receiving rings provide precise positioning and bidirectional constraint for the handle along the axial direction of the support rod. This prevents the handle from lateral slippage or movement during winding, unwinding, or under stress, ensuring that the handle always performs regular winding and unwinding actions within the preset area.

[0018] As a preferred embodiment of the present invention, anti-slip grooves are provided on the outer walls of the first receiving ring and / or the second receiving ring.

[0019] To achieve the above technical solution, the anti-slip grooves significantly increase the coefficient of friction on the surfaces of the first and / or second receiving rings. This allows the user to rotate the support rod by rotating the first and / or second receiving rings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a schematic diagram illustrating the internal structure of the bag; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 A schematic diagram illustrating the elastic structure.

[0021] Reference numerals: 1. Bag body; 2. Handle; 3. Support plate; 4. Wear-resistant plate; 5. Countersunk hole; 6. L-shaped plate; 7. Mounting hole; 8. Positioning plate; 9. Positioning tube; 10. Support rod; 11. First receiving ring; 12. Second receiving ring; 13. Anti-slip groove; 15. Elastic element; 16. Fixing ring; 17. Pressure ring; 18. Limiting ring; 20. Limiting shaft; 21. Limiting groove; 22. Fixing bolt. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0023] A durable nonwoven bag structure includes a bag body 1, and two handles 2 are attached to the side wall of the bag body 1.

[0024] A support plate 3, made of polypropylene, is placed on the bottom wall of the bag body 1. A wear-resistant plate 4, made of PVC, is connected to the bottom of the bag body 1. A countersunk hole 5 is provided on the support plate 3, and a fixing bolt 22 is inserted into the countersunk hole 5. The fixing bolt 22 passes through the bag body 1 and is threadedly connected to the wear-resistant plate 4.

[0025] An L-shaped plate 6 is integrally connected to the corner of the wear-resistant plate 4. The L-shaped plate 6 extends towards the opening of the bag body 1, forming a reinforcement area between the L-shaped plate 6 and the wear-resistant plate 4. The corner of the bag body 1 is located in the reinforcement area.

[0026] There are four fixing bolts 22, which are located near the four corners of the bag body 1.

[0027] A mounting hole 7 is provided on the side wall of the bag body 1. The mounting hole 7 is circular and located near the opening of the bag body 1. A positioning plate 8 is fixedly connected to the inner wall of the bag body 1 by adhesive. A positioning tube 9, which passes through the mounting hole 7, is integrally connected to the inner wall of the positioning plate 8. A support rod 10 passes through the positioning tube 9. The end of the support rod 10 extends out of the positioning tube 9. A first receiving ring 11 and a second receiving ring 12 are fixedly connected to the outer wall of the support rod 10 away from the positioning tube 9. Both the first receiving ring 11 and the second receiving ring 12 are coaxially arranged with the support rod 10.

[0028] Anti-slip grooves 13 are provided on the outer walls of the first receiving ring 11 and the second receiving ring 12, and multiple anti-slip grooves 13 are evenly distributed along the axis of the support rod 10.

[0029] An elastic structure is provided between the positioning tube 9 and the support rod 10, and a limiting structure is provided on the positioning plate 8 to restrict the rotation of the support rod 10. One end of the handle 2 is fixed to the outer wall of the bag body 1 by sewing, and the other end of the handle 2 is fixed to the outer wall of the support rod 10 and located between the first receiving ring 11 and the second receiving ring 12.

[0030] After the support rod 10 moves along its own length direction, it rotates to wind or unwind the handle 2. After the support rod 10 is reset, it is positioned by the limiting structure.

[0031] The elastic structure includes an elastic element 15, a fixing ring 16, and a pressure ring 17. The fixing ring 16 is fixed to the inner wall of the positioning tube 9, near the end of the positioning tube 9 away from the first receiving ring 11. The pressure ring 17 is fixed to the outer wall of the support rod 10, and is located inside the positioning tube 9. The elastic element 15 is disposed between the pressure ring 17 and the fixing ring 16, and is a spring sleeved on the support rod 10. A limiting ring 18 is fixed at the end of the positioning tube 9 to prevent the pressure ring 17 from dislodging from the positioning tube 9.

[0032] The aforementioned limiting structure includes a limiting shaft 20 and a limiting groove 21. The limiting groove 21 is formed on the positioning plate 8 and communicates with the inner wall of the positioning tube 9. Multiple limiting grooves 21 are evenly distributed along the axis of the positioning tube 9. The positioning plate 8 and the positioning tube 9 are coaxially arranged. The support rod 10 passes through the fixing ring 16 and is fixedly connected to the limiting shaft 20. The axis of the limiting shaft 20 is perpendicular to the axis of the support rod 10. The limiting shaft 20 is used to be embedded in the limiting groove 21.

[0033] When it is necessary to store the handle 2 and prevent it from scattering and swinging when not in use, the operator first holds the first receiving ring 11 and / or the second receiving ring 12 with his hand. The anti-slip groove 13 generates a large friction force with the finger surface to prevent the hand from slipping.

[0034] The operator moves the support rod 10 axially relative to the positioning tube 9 along one end of its length. The pressure ring 17 moves with the support rod 10 and compresses the spring located between the pressure ring 17 and the fixed ring 16. The spring stores elastic potential energy after being compressed.

[0035] As the support rod 10 moves axially, the limiting shaft 20 fixed to the outer wall of the support rod 10 exits from the originally embedded limiting groove 21, thereby releasing the engagement relationship between the limiting shaft 20 and the limiting groove 21 and releasing the constraint on the rotation of the support rod 10.

[0036] After the limiting shaft 20 disengages from the limiting groove 21, the operator continues to hold the receiving ring at the anti-slip groove 13 and applies a rotational torque around the axis to the support rod 10, causing the support rod 10 to rotate around its own axis.

[0037] Since one end of the handle 2 is fixed to the side wall of the bag body 1 and the other end is fixed to the outer wall of the support rod 10 and located between the two receiving rings, when the support rod 10 rotates around the axis, the handle 2 is tightly wrapped around the outer periphery of the support rod 10 and is wound around the receiving area formed by the support rod 10, the first receiving ring 11, and the second receiving ring 12.

[0038] During the winding process of the handle 2, the first receiving ring 11 and the second receiving ring 12 limit the handle 2 in the axial direction, guide the handle 2 to wind orderly along the outer periphery of the support rod 10, and prevent the handle 2 from moving towards the two ends of the support rod 10 or falling out.

[0039] Once the handle 2 has been wound to the desired storage length, the operator gradually reduces the axial force on the support rod 10. Under the action of the spring force, the pressure ring 17 and the support rod 10 are pushed back and move toward the fixing ring 16, and the support rod 10 automatically resets along the axial direction.

[0040] During the reset process of the support rod 10, the limiting shaft 20 automatically aligns and re-embeds into a certain limiting groove 21 under the axial thrust provided by the spring and the guiding action of its own geometric cooperation with the limiting groove 21, so that the support rod 10 is locked at the current winding angle position, thereby completing the winding and positioning of the handle 2.

[0041] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A durable nonwoven bag structure, comprising a bag body, wherein a handle is attached to the side wall of the bag body, characterized in that: A support plate is connected to the bottom wall of the bag body, and a wear-resistant plate is connected to the bottom of the bag body. A fixing bolt is connected to the support plate. The fixing bolt passes through the bag body and is threadedly connected to the wear-resistant plate. An L-shaped plate is connected to the corner of the wear-resistant plate. The L-shaped plate extends towards the opening of the bag body. The L-shaped plate and the wear-resistant plate form a reinforcement area. The corner of the bag body is located in the reinforcement area.

2. The durable nonwoven bag structure according to claim 1, characterized in that: The fixing bolts are multiple and located near the corners of the bag.

3. The durable nonwoven bag structure according to claim 1, characterized in that: The bag body has mounting holes on its side wall, and a positioning plate is fixedly connected to the inner wall of the bag body. A positioning tube passing through the mounting hole is fixed on the positioning plate, and a support rod passes through the positioning tube. An elastic structure is provided between the positioning tube and the support rod. A limiting structure is provided on the positioning plate to restrict the rotation of the support rod. One end of the handle is fixed to the outer wall of the bag body, and the other end of the handle is fixed to the outer wall of the support rod. The support rod moves along its own length and then rotates to wind or unwind the handle. After the support rod returns to its original position, it is positioned by the limiting structure.

4. The durable nonwoven bag structure according to claim 3, characterized in that: The elastic structure includes an elastic element, a fixing ring, and a pressure ring. The fixing ring is fixed to the inner wall of the positioning tube, and the pressure ring is fixed to the outer wall of the support rod. The elastic element is disposed between the pressure ring and the fixing ring. A limiting ring is fixed to the end of the positioning tube to prevent the pressure ring from falling out of the positioning tube.

5. The durable nonwoven bag structure according to claim 3, characterized in that: The limiting structure includes a limiting shaft and a limiting groove. The limiting groove is formed on the positioning plate and communicates with the inner wall of the positioning tube. The limiting shaft is fixed on the outer wall of the support rod and is used to be embedded in the limiting groove.

6. The durable nonwoven bag structure according to claim 3, characterized in that: A first receiving ring and a second receiving ring are fixedly connected to the outer wall of the support rod, and the handle is located between the first receiving ring and the second receiving ring.

7. The durable nonwoven bag structure according to claim 6, characterized in that: Anti-slip grooves are provided on the outer walls of the first receiving ring and / or the second receiving ring.

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