Sealing type plastic bucket for food packaging
By reinforcing the design of the ring and spring structure on the plastic bucket, the problem of unstable sealing of the bucket lid after the anti-theft strip is opened is solved, achieving higher sealing performance and stability, and enhancing the fixation and anti-theft warning effect of the bucket lid.
Patent Information
- Application Number
- CN202520597774.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Traditional plastic buckets have lids that cannot be restored after the anti-theft strip is opened, resulting in poor sealing performance. The lids are also prone to displacement or detachment due to external force or vibration, affecting sealing and stability.
It adopts a reinforced ring and spring sheet structure. The spring sheet drives the locking block to engage with the lid slot, and the knob squeezes the spring sheet to increase the fixing force of the lid. Combined with the double sealing structure of the sealing ring, it ensures that the lid remains secure even after the anti-theft strip is opened.
It improves the secondary sealing performance and stability of plastic buckets, prevents the lid from easily shifting or falling off, and enhances sealing performance and anti-theft warning function.
Smart Images

Figure CN223851225U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sealed plastic bucket, in particular to a sealed plastic bucket for food packaging belongs to plastic bucket technical field. BACKGROUND
[0002] The sealed plastic bucket for food packaging is a container specially used for packaging food, and the material of the plastic bucket for food packaging must meet the relevant food safety standards, usually adopts food-grade polyethylene, polypropylene and other plastics, which have the characteristics of non-toxic, odorless, good chemical stability and the like, and will not pollute the food, ensuring the food safety, and the traditional plastic bucket usually adopts a gland type bucket cover, and the plastic bucket with the gland type bucket cover is mainly composed of a bucket body, a bucket cover, an anti-theft strip and a sealing ring and the like, wherein the anti-theft strip provides the tight connection, fixation and anti-theft effect between the bucket cover and the bucket body.
[0003] However, the plastic bucket with the gland type bucket cover cannot be restored after the anti-theft strip is opened, and after losing the fixation effect of the anti-theft strip for the connection between the bucket cover and the bucket body, the bucket cover is usually fixed by relying on the friction force of the sealing ring and the interference fit between the bucket cover and the bucket mouth during the secondary sealing of the bucket cover, and it is difficult for the sealing ring friction force and the interference fit to withstand a large external force, and when the bucket cover is subjected to collision, vibration or inclination in the process of carrying, the bucket cover is easy to be displaced or fallen off, thereby affecting the sealing performance of the plastic bucket. SUMMARY
[0004] The utility model discloses a sealed plastic bucket for food packaging, which is used to solve the above problems, and limits the bucket cover through a fixing structure, so that the bucket cover is still firm during the secondary sealing of the plastic bucket after the anti-theft strip is opened, the bucket cover is effectively prevented from being easily displaced or fallen off, and the sealing performance and stability of the plastic bucket during the secondary sealing are improved.
[0005] The utility model discloses a sealed plastic bucket for food packaging through the following technical scheme to realize the above-mentioned purpose, a sealed plastic bucket for food packaging, including the bucket body, the top of the bucket body is covered with the bucket cover, the outer wall of the bucket body is fixedly connected with the reinforcing ring, the reinforcing ring is installed with the fixed knot, the fixed knot includes the elastic sheet, the reinforcing ring is fixedly connected with two elastic sheets, the top of the elastic sheet is fixedly connected with the clamping block, the bucket cover is equipped with two clamping grooves, the clamping block is clamped with the clamping groove, the reinforcing ring is screw -threaded with the knob, the knob is in contact with the elastic sheet, the bucket cover is installed with the sealing structure, the sealing structure includes the first rubber ring, the first rubber ring is fixedly connected on the bucket cover, the outer wall of the first rubber ring is in contact with the inner wall of the bucket body.
[0006] Preferably, the elastic sheet is in the shape of "L", and the end of the clamping block is in the shape of a trapezoid.
[0007] Preferably, the two elastic sheets are symmetrically distributed about the middle part of the barrel body, and a handle is rotatably connected to the barrel body.
[0008] Preferably, a second rubber ring is fixedly connected to the barrel cover, and the second rubber ring is clamped with the top end of the barrel body.
[0009] Preferably, the first rubber ring has a trapezoidal cross section, and the second rubber ring has an "O" shaped cross section.
[0010] Preferably, two anti-theft strips are mounted on the barrel cover, a fixing ring is fixedly connected to the barrel body, and the two anti-theft strips abut against the fixing ring.
[0011] Preferably, one end of the anti-theft strip abutting against the fixing ring has a trapezoidal structure, and the fixing ring has a trapezoidal structure.
[0012] Preferably, the anti-theft strip has an overall arc-shaped structure, the two anti-theft strips are symmetrically distributed about the center of the fixing ring, and the end of the anti-theft strip is fixedly connected with a pull tab.
[0013] Preferably, a convex block is fixedly connected to the barrel cover, and a plurality of anti-skid grooves are formed in the convex block.
[0014] The barrel cover is clamped with the barrel cover, a reinforcing ring is fixedly connected to the outer wall of the barrel body, two elastic sheets are fixedly connected to the reinforcing ring, the top end of the elastic sheet is fixedly connected with a clamping block, two clamping grooves are formed in the barrel cover, the clamping block is clamped with the clamping groove, a knob is threadedly connected to the reinforcing ring, and the knob abuts against the elastic sheet. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the connection structure of the reinforcing ring and the knob of the utility model;
[0017] Figure 3 It is Figure 2 It is an enlarged schematic diagram of the structure of A shown in the figure;
[0018] Figure 4 It is a schematic diagram of the connection structure of the barrel body and the barrel cover of the utility model;
[0019] Figure 5 As Figure 4 The B part structure enlarged schematic view shown in figure;
[0020] Figure 6 The connecting structure schematic view of the anti-theft strip and the pull tab of the utility model.
[0021] In the figure: 1, barrel body; 2, barrel cover; 3, reinforcing ring; 4, fixed structure; 401, elastic sheet; 402, clamping block; 403, clamping groove; 404, knob; 5, sealing structure; 501, first rubber ring; 502, second rubber ring; 503, anti-theft strip; 504, pull tab; 505, fixed ring; 6, handle; 7, protruding block; 8, anti-skid groove. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0023] Please refer to Figures 1-6 As shown in figure, a kind of sealing type plastic barrel for food packaging, including barrel body 1, the top of the barrel body 1 is covered with barrel cover 2, the outer wall of the barrel body 1 is fixedly connected with reinforcing ring 3, the reinforcing ring 3 is installed with fixed structure 4, the fixed structure 4 includes elastic sheet 401, the reinforcing ring 3 is fixedly connected with two elastic sheets 401, the top of the elastic sheet 401 is fixedly connected with clamping block 402, two clamping grooves 403 are set on the barrel cover 2, the clamping block 402 is engaged with clamping groove 403, the reinforcing ring 3 is screw-connected with knob 404, the knob 404 is in contact with elastic sheet 401, the elastic sheet 401 is "L" shaped structure, the end of the clamping block 402 is trapezoidal structure, the barrel cover 2 is installed with sealing structure 5, the sealing structure 5 includes first rubber ring 501, the barrel cover 2 is fixedly connected with first rubber ring 501, the outer wall of the first rubber ring 501 is in contact with the inner wall of barrel body 1.
[0024] As a kind of technical optimization scheme of the utility model, two the elastic sheet 401 about the middle part of barrel body 1 is symmetrically distributed, the barrel body 1 is rotatably connected with handle 6; plastic barrel is conveniently lifted by handle 6.
[0025] As a technical optimization scheme of the utility model, the second rubber ring 502 is fixedly connected on the bucket cover 2, the second rubber ring 502 is clamped with the top end of the bucket body 1, the section of the first rubber ring 501 is trapezoidal structure, the section of the second rubber ring 502 is " O " shape structure;When the bucket cover 2 is combined with the bucket body 1, the bucket cover 2 drives the first rubber ring 501 to be in contact with the inner wall of the bucket body 1 in the process of pressing down the bucket cover 2, and the section of the first rubber ring 501 is trapezoidal structure, after the bucket cover 2 is installed in place, the first rubber ring 501 of trapezoidal structure is extruded and closely adheres to the inner wall of the bucket body 1, forms a sealed barrier, effectively prevents the outside air, humidity and microorganism from entering the bucket, simultaneously, the bucket cover 2 drives the second rubber ring 502 to be clamped with the top end of the bucket body 1, further fills the gap between the bucket cover 2 and the top end of the bucket body 1, plays a sealing role to the plastic bucket with the first rubber ring 501, and then the sealing performance of the plastic bucket is significantly improved.
[0026] As a technical optimization scheme of the utility model, two anti-theft strips 503 are installed on the bucket cover 2, a fixed ring 505 is fixedly connected on the bucket body 1, both the anti-theft strips 503 are in contact with the fixed ring 505, one end of the anti-theft strip 503 in contact with the fixed ring 505 is trapezoidal structure, the fixed ring 505 is trapezoidal structure, the anti-theft strip 503 is arc structure as a whole, both the anti-theft strips 503 are symmetrically distributed about the center of the fixed ring 505, and the end of the anti-theft strip 503 is fixedly connected with a pull tab 504;The anti-theft strip 503 is hot-press connected with the bucket cover 2, when the anti-theft strip 503 contacts with the fixed ring 505 in the process that the bucket cover 2 is combined with the bucket body 1, the anti-theft strip 503 is elastically deformed and expands outward, along with the further pressing of the bucket cover 2, the inclined surface of the trapezoidal structure of the end of the anti-theft strip 503 slides along the inclined surface of the trapezoidal structure of the fixed ring 505, until the anti-theft strip 503 is closely in contact with the bottom end of the fixed ring 505, when the bucket cover 2 is opened for the first time, the pull tab 504 at the end of the anti-theft strip 503 needs to be pulled and rotated around the center of the bucket body 1, the pull tab 504 drives the anti-theft strip 503 to fall off from the bucket cover 2, thereby leaving opening traces, and further playing an anti-theft warning role to the plastic bucket.
[0027] As a technical optimization scheme of the utility model, the convex block 7 is fixedly connected on the bucket cover 2, and a plurality of anti-skid grooves 8 are formed in the convex block 7;After the limiting of the fixing structure 4 on the bucket cover 2 is released, the bucket cover 2 can be lifted off from the bucket body 1 by pulling the convex block 7 fixedly connected on the bucket cover 2, and the anti-skid grooves 8 increase the friction between the hand and the convex block 7, facilitating the operation of the bucket cover 2.
[0028] In use, when initially installing the lid 2, hold the lid 2 and align the two slots 403 on the lid 2 with the locking blocks 402 at the top of the spring clips 401. After the lid 2 is in place, sequentially engage the locking blocks 402 on the two spring clips 401 with the two slots 403 on the lid 2. During operation, press the spring clips 401 towards the lid 2. Because the spring clips 401 have a certain elasticity and the end of the locking blocks 402 has a trapezoidal structure, during the pressing of the spring clips 401, the trapezoidal end of the locking blocks 402 can guide the locking blocks 402 to slide smoothly into the slots 403. To initially secure the lid 2, the two spring clips 401 are symmetrically distributed about the middle of the bucket body 1, ensuring even force distribution on the lid 2. Next, the knob 404 is rotated, causing it to contact the spring clips 401 and gradually press them towards the lid 2. Under the combined action of the spring clips 401 and the locking block 402, the locking block 402 applies greater pressure to the lid 2, resulting in a tighter engagement between the locking block 402 and the locking groove 403. This enhances the connection between the lid 2 and the bucket body 1, and ensures that the lid 2 remains securely installed even after the anti-theft strip 503 is opened and the bucket is resealed. The seal is secure and effectively prevents the lid 2 from easily shifting or falling off, thereby improving the sealing performance and stability of the plastic bucket during secondary sealing. The anti-theft strip 503 is heat-pressed to the lid 2. During the process of closing the lid 2 and the bucket body 1, when the anti-theft strip 503 comes into contact with the fixing ring 505, the anti-theft strip 503 undergoes elastic deformation and expands outward. As the lid 2 is further pressed down, the inclined surface of the trapezoidal structure at the end of the anti-theft strip 503 slides along the inclined surface of the trapezoidal structure of the fixing ring 505 until the bottom end of the anti-theft strip 503 and the fixing ring 505 are tightly abutted and fitted. When opening the lid 2 for the first time, it is necessary to walk around the bucket. Pulling and rotating the pull tab 504 at the end of the anti-theft strip 503 from the center of body 1 causes the pull tab 504 to be forced to dislodge the anti-theft strip 503 from the lid 2, leaving an opening mark and thus serving as an anti-theft warning for the plastic bucket. When the lid 2 is closed to the body 1, during the downward pressing of the lid 2, the lid 2 causes the first rubber ring 501 to abut against the inner wall of the body 1. At the same time, the lid 2 causes the second rubber ring 502 to engage with the top of the body 1, so that the second rubber ring 502 and the first rubber ring 501 work together to seal the plastic bucket, thereby significantly improving the sealing performance of the plastic bucket.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A sealed plastic tub for food packaging comprising a tub body (1) characterised in that: The top end of the barrel body (1) is covered with a barrel cover (2), the outer wall of the barrel body (1) is fixedly connected with a reinforcing ring (3), the reinforcing ring (3) is provided with a fixing structure (4), the fixing structure (4) comprises elastic sheets (401), two elastic sheets (401) are fixedly connected on the reinforcing ring (3), the top end of the elastic sheet (401) is fixedly connected with a clamping block (402), two clamping grooves (403) are formed in the barrel cover (2), the clamping block (402) is clamped in the clamping groove (403), the reinforcing ring (3) is threadedly connected with a knob (404), the knob (404) abuts against the elastic sheet (401), the barrel cover (2) is provided with a sealing structure (5), the sealing structure (5) comprises a first rubber ring (501), the first rubber ring (501) is fixedly connected to the barrel cover (2), and the outer wall of the first rubber ring (501) abuts against the inner wall of the barrel body (1).
2. A sealed plastic bucket for food packaging according to claim 1, characterized in that: The elastic sheet (401) is in an "L" shape structure, and the end of the clamping block (402) is in a trapezoidal structure.
3. A sealed plastic tub for food packaging according to claim 2, characterised in that: The two elastic sheets (401) are symmetrically distributed about the middle part of the barrel body (1), and the barrel body (1) is rotatably connected with a handle (6).
4. The sealed plastic bucket for food packaging according to claim 1, wherein: The barrel cover (2) is fixedly connected with a second rubber ring (502), and the second rubber ring (502) is clamped at the top end of the barrel body (1).
5. A sealed plastic tub for food packaging according to claim 4, characterised in that: The first rubber ring (501) is in a trapezoidal structure in cross section, and the second rubber ring (502) is in an "O" shape structure in cross section.
6. The sealed plastic bucket for food packaging according to claim 1, wherein: The barrel cover (2) is provided with two anti-theft strips (503), and the barrel body (1) is fixedly connected with a fixing ring (505), wherein the two anti-theft strips (503) abut against the fixing ring (505).
7. A sealed plastic tub for food packaging according to claim 6, characterised in that: The end of the anti-theft strip (503) abutting against the fixing ring (505) is in a trapezoidal structure, and the fixing ring (505) is in a trapezoidal structure.
8. A sealed plastic tub for food packaging according to claim 7, characterised in that: The anti-theft strip (503) is in an arc structure as a whole, the two anti-theft strips (503) are symmetrically distributed about the center of the fixing ring (505), and the end of the anti-theft strip (503) is fixedly connected with a pull tab (504).
9. The sealed plastic bucket for food packaging according to claim 1, wherein: The barrel cover (2) is fixedly connected with a protrusion (7), and a plurality of anti-skid grooves (8) are formed in the protrusion (7).