Anti-theft cover of chemical barrel

Abstract

The utility model relates to the technical field of chemical packaging, in particular to a chemical barrel anti-theft cover which comprises a cover body buckled with a barrel opening, two easy-to-tear grooves are formed in the inner side wall of the cover body to form a tearing belt, opening is achieved through a pulling part, meanwhile, a buffering ring coaxially connected with the cover body is additionally arranged, and the buffering ring and the tearing belt are fixed through a connecting part. The pulling part is located on the outer ring face of the buffering ring, and the opening convenience and the anti-theft performance are optimized. In addition, through the structural design of the air holes, the clamping protrusions, the annular protrusion reinforcing parts and the like, the sealing performance, the structural strength and the use convenience of the cover body are further improved. The technical effects that the anti-theft performance of the chemical barrel anti-theft cover is enhanced, the opening operation is simplified, and the reliability of the overall structure is improved are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of chemical material packaging, in particular to a chemical barrel anti-theft cover. BACKGROUND

[0002] A chemical barrel for containing chemical materials, a large and small opening are arranged at the top of the barrel body, a plug is installed at the large opening, and the plug is provided with a threaded plug on the outer side wall. Most of the chemical materials need to be prevented from being contaminated by the outside world, dust is easy to deposit on the plug, and the process of opening and closing the barrel opening will easily contaminate the materials in the barrel, so it is necessary to prevent dust accumulation at the barrel opening. A dustproof cover is buckled at the opening.

[0003] In the prior art, in order to prevent theft and ensure safety, the dustproof cover is further set as a disposable anti-theft cover. When the anti-theft cover is opened, the cover body structure will be damaged, and it can be directly observed whether the cover body has been opened. Referring to the domestic utility model document with the patent announcement number CN209009206U, a combination structure of a sealing cover and a plug is disclosed, the cover body is made of plastic material, the sealing cover plays a role of dustproof and theftproof, the cover body is buckled and fixed with the barrel opening of the barrel body, when the sealing cover is disassembled, the small pull ring is pulled, the small pull ring drives the lifting part to rise, the cover body is torn from the tear mark, the cover body is divided into two halves, which is convenient for disassembly, and at the same time, the cover body is damaged and cannot be used again.

[0004] According to the related technology in the above, the cover body is buckled with the barrel body, in order to facilitate tearing, the cover body is made of plastic material as a whole, the plastic material has a certain elasticity, and the situation that the buckling structure is directly pried open from the bottom of the cover body without damaging the external structure of the cover body exists, and the anti-theft function is not reliable. In view of this, the applicant designs a new anti-theft cover. UTILITY MODEL CONTENTS

[0005] In order to improve the anti-theft function of the anti-theft cover, the present application provides a chemical barrel anti-theft cover.

[0006] The chemical barrel anti-theft cover comprises a cover body buckled with a barrel opening, two thinning wall thickness easy-to-tear grooves are arranged on the inner side wall of the cover body, a tearing zone is formed between the two easy-to-tear grooves, one end of the tearing zone is provided with a pulling part for pulling the tearing zone, a buffer ring is further arranged, the buffer ring is coaxially arranged with the cover body, the inner diameter of the buffer ring is greater than the outer diameter of the cover body, an easy-to-break edge connection is arranged between the buffer ring and the cover body, a connecting part is arranged between the buffer ring and the tearing zone to connect and fix, and the pulling part is fixed on the outer ring surface of the buffer ring.

[0007] By adopting the technical scheme, the cover body is buckled with the barrel mouth, a tearing zone is formed between the two easy-to-tear grooves, one end of the tearing zone is provided with a pulling portion, the anti-theft function is realized, the cover body can only be removed in a destructive way, and the raw materials in the barrel are prevented from being stolen and then covered back. The buffer ring is coaxially arranged with the cover body and has an inner diameter larger than an outer diameter of the cover body, the buffer ring is connected with the cover body through the breakable edge, the buffer ring can be separated from the cover body when the buffer ring is stressed, the buffer ring is fixedly connected with the tearing zone through the connecting portion, the tearing zone can be synchronously torn when the buffer ring is pulled, the edge of the cover body is covered by the buffer ring, the cover body is prevented from being pried open, and it is ensured that the cover body can only be removed in a destructive way; the buffer cover can also prevent the cover body from being directly impacted in a lateral direction during transportation and prevent the cover body from falling off due to accidental factors. The pulling portion is fixed on the outer ring surface of the buffer ring, force operation is facilitated, and the cover body is conveniently destroyed and removed.

[0008] Preferably, the lower end surface of the buffer ring is lower than the lower end surface of the cover body, and the lower end surface of the buffer ring abuts against the upper end surface of the matched chemical barrel.

[0009] By adopting the technical scheme, the lower end surface of the buffer ring is lower than the lower end surface of the cover body and abuts against the upper end surface of the matched chemical barrel, the tightness of the cooperation between the buffer ring and the barrel body is enhanced, and the cover body is better prevented from being pried open by a tool.

[0010] Preferably, the pulling portion is a plate body fixed with the buffer ring, the pulling portion is located at the bottom of the buffer ring, and a through hole is formed in the pulling portion.

[0011] By adopting the technical scheme, the plate body is designed as the pulling portion at the bottom of the buffer ring, the pulling portion is attached to the end surface of the chemical barrel and is not easy to be damaged, the integrity of the pulling portion is ensured, and the cover body can be removed through the pulling portion in use. Meanwhile, the through hole formed in the plate body further optimizes the operation experience, so that the user can insert a tool into the through hole to apply force, the convenience of disassembling the cover body is improved, and an identifier can be additionally fixed at the through hole according to needs, so that the raw material information can be identified. The design ensures the anti-theft function, and improves the operation efficiency and convenience in actual use.

[0012] Preferably, one end of the pulling portion away from the buffer ring is provided in a semicircular shape, and an arc-shaped protrusion is coaxially arranged at the one end of the pulling portion away from the buffer ring, the arc-shaped protrusion is located at the edge of the semicircular end of the pulling portion, and the height of the arc-shaped protrusion is 1-2 mm.

[0013] By adopting the above technical scheme, the semicircular design makes the end of the pulling part more smooth, avoiding accidental injuries or hanging caused by sharp edges, and improving the safety and convenience of use. The setting of the arc-shaped protrusion further enhances the friction between the finger and the pulling part, providing a more stable gripping point during pulling, effectively preventing slipping and ensuring easy force application. In addition, the height of the arc-shaped protrusion is limited to 1-2mm, which ensures the functional requirements and does not excessively increase the structural complexity or material cost.

[0014] Preferably, the outer periphery of the buffer ring is coaxially provided with a ring protrusion reinforcing part, and the ring protrusion reinforcing part is arranged at the lower end edge of the buffer ring.

[0015] By adopting the above technical scheme, the setting of the ring protrusion reinforcing part can enhance the structural strength of the outer periphery of the buffer ring, preventing the buffer ring from deforming due to external impact or extrusion during use. This structure is particularly suitable for chemical drum anti-theft covers, effectively improving the overall stability of the cover body and prolonging the service life of the product.

[0016] Preferably, the lower end of the inner side wall of the cover body is coaxially provided with a ring of clamping protrusions matched with the barrel mouth, and the easy-to-tear slot interrupts the clamping protrusions.

[0017] By adopting the above technical scheme, the lower end of the inner side wall of the cover body is provided with a ring of clamping protrusions, which can stably clamp with the barrel mouth, ensuring that the cover body is firmly installed at the barrel mouth and preventing accidental falling. The design of the easy-to-tear slot interrupting the clamping protrusions ensures that the clamping protrusions do not hinder the separation process of the tear strip when the tear strip is torn, thereby ensuring that the cover body can be smoothly removed for destruction, achieving the anti-theft function while improving the operation convenience.

[0018] Preferably, the lower end surface of the cover body is provided with an opening slot, and the opening slot is provided with two and corresponds to the positions of the two easy-to-tear slots.

[0019] By adopting the above technical scheme, the setting of the opening slot can effectively reduce the resistance of the cover body during tearing, making the tear strip easier to be torn along the easy-to-tear slot. The opening slot corresponds to the positions of the two easy-to-tear slots, ensuring that the cover body is torn along the easy-to-tear slot, improving the convenience and reliability of the tearing operation, and reducing the problem of difficult disassembly caused by large tearing resistance.

[0020] Preferably, a ventilation hole is provided through the center of the cover body, and the cross section of the ventilation hole is in the shape of a circular truncated cone.

[0021] By adopting the technical scheme, the vent hole is arranged on the cover body and has a circular truncated cone section, which can effectively solve the problem of gas pressure caused by temperature change of the medium in the chemical barrel. The specific effects are as follows: 1. The design of the circular truncated cone vent hole enables the vent hole to have a one-way exhaust function, allowing only internal gas to be discharged and preventing external pollutants from entering, thereby avoiding pollution of the material in the barrel. 2. The structural design of the vent hole helps to balance the gas pressure inside and outside the barrel, preventing the cover body from swelling or deforming due to temperature difference during transportation, and improving the safety of the chemical barrel.

[0022] Preferably, the vent hole has a hole diameter of 1-1.5mm at one end close to the outer side of the cover body, and a hole diameter of 3-4mm at one end close to the inner side of the cover body.

[0023] By adopting the technical scheme, the vent hole has different hole diameters at two ends, the hole diameter at one end close to the outer side of the cover body is smaller, which can effectively prevent external impurities from entering the chemical barrel and reduce the possibility of gas leakage; the hole diameter at one end close to the inner side of the cover body is larger, which can ensure that the gas in the barrel is discharged smoothly and prevent the cover body from swelling due to excessive pressure. This design ensures the exhaust function while improving the sealing and safety.

[0024] Preferably, the breakable edge is arranged circumferentially around the cover body.

[0025] By adopting the technical scheme, the cover body and the buffer ring are stably and fixedly connected, and when the cover body is removed, the breakable edge is disconnected in batches, without generating excessive resistance.

[0026] In summary, the present application has the following at least one beneficial technical effect:

[0027] 1. The tear strip formed by the two tear grooves arranged on the cover body, in combination with the connecting part between the buffer ring and the tear strip, realizes destructive removal of the cover body, effectively prevents the cover body from being completely removed and then re-covered, and significantly improves the anti-theft performance;

[0028] 2. The breakable edge between the buffer ring and the cover body enables the cover body to be quickly separated under stress, and the buffer ring protects the cover body, avoiding the situation of prying open the buckle structure without damaging the cover body, thereby enhancing the overall safety of the anti-theft cover;

[0029] 3. The vent hole on the cover body adopts a special circular truncated cone structure, which not only solves the problem of gas pressure caused by temperature change of the medium in the chemical barrel, but also prevents external pollutants from entering the barrel cover through the one-way exhaust function, ensuring the safety of storage of chemical materials. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0031] Figure 2 is a bottom view of Figure 1 ;

[0032] Figure 3 is an A-A sectional view of Figure 2 ;

[0033] Figure 4 is a B-B sectional view of Figure 2 .

[0034] BRIEF DESCRIPTION OF DRAWINGS: 1, cover; 11, easy-to-tear slot; 12, easy-to-tear strip; 13, clamping protrusion; 14, opening slot; 15, air hole; 2, pulling part; 21, through hole; 22, arc-shaped protrusion; 3, buffer ring; 31, ring convex reinforcing part; 4, easy-to-break side; 5, connecting part. DETAILED DESCRIPTION

[0035] The application will be further described below in conjunction with the accompanying Figures 1-4 .

[0036] A chemical barrel anti-theft cover, referring to Figure 1 , comprising a cover 1 buckled with the barrel mouth, a buffer ring 3 coaxially arranged with the cover 1, and a pulling part 2 fixed on the outer circumferential surface of the buffer ring 3. The cover 1, the buffer ring 3, the pulling part 2 and other structures are integrally injection molded, the cover 1 as a whole adopts high-strength plastic material, has good toughness and impact resistance, and can effectively protect the chemical materials in the barrel; the end of the cover 1 and the buffer ring 3 close to the chemical barrel in the installed state is the lower end.

[0037] The inner diameter of the buffer ring 3 is greater than the outer diameter of the cover 1, and the easy-to-break side 4 is connected between the buffer ring 3 and the cover 1. The easy-to-break side 4 is a short plate body with a thickness of about 1 mm, which can be easily pulled off; multiple easy-to-break sides 4 are arranged along the circumference of the cover 1, and the easy-to-break sides 4 are equidistantly arranged, which ensures the stable connection of the buffer ring 3 and the cover 1. The outer circumferential side of the buffer ring is coaxially provided with a ring convex reinforcing part 31, which is arranged at the lower end edge of the buffer ring. The ring convex reinforcing part 31 can strengthen the strength of the lower end of the buffer ring 3, and the buffer ring 3 is not easy to be pulled off and the bottom is not easy to be deformed.

[0038] The pulling part 2 is a plate body fixed with the buffer ring 3, and the pulling part 2 is located at the bottom of the buffer ring 3. A through hole 21 is provided through the pulling part 2, the through hole 21 can be provided with a rope for easy pulling, or a mark can be fixed through the through hole 21 according to needs. The end of the pulling part 2 away from the buffer ring 3 is provided in a semicircular shape to reduce possible wear and scratching; the end of the pulling part 2 away from the buffer ring 3 is coaxially provided with an arc-shaped protrusion 22, which is located at the edge of the semicircular end of the pulling part 2. The height of the arc-shaped protrusion 22 is 1-2 mm. The structure of the arc-shaped protrusion 22 facilitates the user to pull the pulling part 2.

[0039] The buffer ring 3 is away from one end of the pulling part 2, and the buffer ring 3 is connected and fixed with the cover body 1 through the connecting part 5, the connecting part 5 is a thick plate body which is difficult to be pulled off; the connecting part 5 is provided with two and is symmetrically distributed about the middle axis of the whole anti-theft cover.

[0040] Reference Figure 2 And Figure 3 The cover body 1 is provided with a gas permeation hole 15 penetrating through the center, and the cross section of the gas permeation hole 15 is in the shape of a circular truncated cone; the hole diameter of one end of the gas permeation hole 15 close to the outer side of the cover body 1 is 1-1.5mm, and the hole diameter of the other end of the gas permeation hole 15 close to the inner side of the cover body 1 is 3-4mm. The circular truncated cone-shaped gas permeation hole 15 can discharge the gas (caused by the volume expansion of the gas due to temperature change) in the cover body 1, prevent the cover body 1 from being expanded, and effectively prevent the external dirt from entering the cover body 1 through the small hole on the outer side of the circular truncated cone-shaped gas permeation hole. The lower end of the inner side wall of the cover body 1 is coaxially provided with a ring of clamping protrusions 13 which are clamped with the barrel mouth.

[0041] The lower end surface of the buffer ring 3 is slightly lower than the lower end surface of the cover body 1. When the anti-theft cover is installed on the barrel mouth of the chemical barrel, the top of the cover body 1 abuts against the end surface of the barrel mouth, the clamping protrusions 13 on the inner side of the cover body 1 are clamped with the ring protrusions of the barrel mouth, and the cover body 1 is tightly buckled on the barrel mouth. At this time, the lower end surface of the buffer ring 3 abuts against the upper end surface of the matched chemical barrel, the buffer ring 3 is tightly matched with the barrel surface of the chemical barrel, and the cover body 1 is prevented from being pried with tools.

[0042] Reference Figure 2 And Figure 4 Two thinning wall thickness easy-to-tear grooves 11 are arranged on the inner side wall of the cover body 1, the easy-to-tear grooves 11 extend from one side wall of the cover body 1 to the center of the top surface of the cover body 1, and a tearing zone is formed between the two easy-to-tear grooves 11; the two easy-to-tear grooves 11 are located on the two sides of the connecting part 5, and the connecting part 5 connects and fixes the tearing zone and the buffer ring 3; the two easy-to-tear grooves 11 cut off the clamping protrusions 13, and the cut-off position is located on the side of the cover body 1 away from the pulling part 2. The lower end surface of the cover body 1 is provided with an open slot 14 which completely cuts off the lower end of the side wall of the cover body 1, the open slot 14 is provided with two and corresponds to the positions of the two easy-to-tear grooves 11 respectively, and the open slot 14 facilitates the thin plate structure of the easy-to-tear grooves 11.

[0043] The implementation principle of the embodiment is that when the chemical barrel needs to be opened, the user applies a pulling force through the pulling plate body, the pulling force is transmitted to the tearing zone through the connecting part 5, the tearing zone is torn along the easy-to-tear groove 11, and the structure of the cover body 1 is damaged. The design of the buffer ring 3 can effectively disperse stress when the cover body 1 is subjected to external force, avoid being directly pried open, and significantly improve the anti-theft performance. At the same time, the arrangement of the arc-shaped protrusion 22 increases the friction force, which is convenient for the user to operate.

[0044] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A theft-proof cover for a chemical barrel, comprising a cover body (1) which is fastened to the mouth of the barrel, two thinning tear grooves (11) being formed on the inner wall of the cover body (1), a tear zone being formed between the two thinning tear grooves (11), and a pulling portion (2) being arranged at one end of the tear zone for pulling the tear zone, characterized in that: Further comprise a buffer ring (3), the buffer ring (3) is coaxial with the cover (1) is arranged, the inner diameter of the buffer ring (3) is greater than the outer diameter of the cover (1), the buffer ring (3) and the cover (1) between the breakable edge (4) is connected, the buffer ring (3) and the tear strip between the connecting part (5) is connected and fixed, the pulling part (2) is fixed on the outer ring surface of the buffer ring (3).

2. The theft-proof cover for a chemical drum according to claim 1, wherein: The lower end surface of the buffer ring (3) is lower than the lower end surface of the cover (1), and the lower end surface of the buffer ring (3) abuts against the upper end surface of the matched chemical barrel.

3. The theft-proof cover for a chemical drum according to claim 2, wherein: The pulling part (2) is a plate body fixed with the buffer ring (3), the pulling part (2) is located at the bottom of the buffer ring (3), and a through hole (21) is formed through the pulling part (2).

4. The theft-proof cover for a chemical drum according to claim 3, wherein: The end of the pulling part (2) away from the buffer ring (3) is provided as a semicircle; the end of the pulling part (2) away from the buffer ring (3) is coaxially provided with an arc-shaped protrusion (22), the arc-shaped protrusion (22) is located at the edge of the semicircular end of the pulling part (2), and the height of the arc-shaped protrusion (22) is 1-2mm.

5. The theft-proof cover for a chemical drum according to claim 3, wherein: The outer periphery of the buffer ring (3) is coaxially provided with a ring convex reinforcing portion (31), and the ring convex reinforcing portion (31) is arranged at the lower end edge of the buffer ring (3).

6. The theft-proof cover for a chemical drum according to claim 5, wherein: The lower end of the inner side wall of the cover (1) is coaxially provided with a ring convex reinforcing portion (31), and the ring convex reinforcing portion (31) is arranged at the lower end edge of the buffer ring (3).

7. The theft-proof cover for a chemical drum according to claim 6, wherein: The lower end surface of the cover (1) is provided with an opening slot (14), and the opening slot (14) is provided with two and corresponds to the position of the two easy-to-tear grooves (11).

8. The theft deterrent closure for a chemical drum according to claim 1, wherein: The cover (1) is provided with a ventilation hole (15) through the center, and the cross section of the ventilation hole (15) is a circular truncated cone.

9. The theft-proof cover for a chemical drum according to claim 8, wherein: The hole diameter of the end of the ventilation hole (15) close to the outer side of the cover (1) is 1-1.5mm, and the hole diameter of the end of the ventilation hole (15) close to the inner side of the cover (1) is 3-4mm.

10. The theft deterrent closure for a chemical drum according to claim 1, wherein: The breakable edge (4) is arranged along the circumference of the cover (1).

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