A jam packaging jar

Abstract

This utility model relates to the field of packaging technology, specifically to a jam packaging jar. It includes a jar body, with a support ring fixedly connected to the top opening of the jar body, and a lid threadedly connected to the outer wall of the support ring. The lid has a circular groove inside, and a circular plate inside the circular groove has multiple circular holes. A pressing assembly is provided between the circular plate and the inner wall of the circular groove. Through the linkage between the circular plate inside the lid and the pressing assembly, when the pressing plate is pressed, the support rod drives the piston downward, releasing the piston from blocking the circular holes of the circular plate. Simultaneously, the groove of the pressing plate aligns with the circular holes to assist air circulation, quickly balancing the air pressure inside and outside the jar, preventing the jar opening from tightly sealing with the lid due to thermal expansion and contraction. This allows people with weaker hand strength to easily open the jar, effectively solving the problem of difficulty in opening after refrigeration in existing technologies and improving ease of use.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a jam packaging jar. Background Technology

[0002] Most existing jam packaging jars are made of glass, metal or plastic, and are mainly cylindrical in shape, supplemented by square and a few irregular designs. The jar opening is usually equipped with a screw cap to achieve a seal, and some large-capacity products use a flip-top or anti-theft cap structure. Their basic function is to extend the shelf life of jam by sealing it to isolate air and microorganisms, while also taking into account the convenience of transportation and storage.

[0003] For jam packaging, which is mostly stored in glass jars with metal screw caps for airtight preservation, the difference in the coefficients of thermal expansion and contraction between glass and metal means that when the packaging jar is subjected to temperature changes such as refrigeration, the threads of the jar opening and the metal cap may form a tight seal due to the different amounts of contraction, or even create a negative pressure adsorption effect. This results in a significant increase in opening resistance, which is especially difficult for the elderly, children, and other groups with weaker hand strength to open independently, seriously affecting the ease of use.

[0004] Therefore, we propose a jam packaging jar. Utility Model Content

[0005] This utility model provides a jam packaging jar, which uses a circular plate with a hole inside the lid, and a pressing assembly consisting of a support rod, a pressure plate, a spring, and a piston. When the pressure plate is pressed, the spring is compressed, the piston moves down to release the blockage of the circular hole in the circular plate, and the groove of the pressure plate aligns with the circular hole to assist in venting and balance the air pressure inside and outside the jar. After releasing the pressure, the piston returns to its original position and re-blocks the circular hole to maintain a seal, thereby solving the problems mentioned in the background art, namely: Due to the difference in their coefficients of thermal expansion and contraction, glass jars and metal screw caps form a tight seal and negative pressure after temperature changes such as refrigeration, making it difficult for the elderly, children, and other groups with weaker hand strength to open them.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A jam packaging jar includes a jar body, a support ring fixedly connected to the top opening of the jar body, and a lid threadedly connected to the outer wall of the support ring; the lid has a circular groove inside, a circular plate inside the circular groove, and a plurality of circular holes inside the circular plate. A pressing component is provided between the circular plate and the inner wall of the circular slot, and the pressing component is used to adjust the flow state of the hole in the circular plate.

[0007] Preferably, the pressing assembly includes a support rod that is movably connected inside the circular plate. The support rod extends through the top of the circular plate and is fixedly connected to a pressure plate. The support rod extends through the bottom of the circular plate and is fixedly connected to a piston. A spring is fixedly connected between the bottom of the pressure plate and the top of the circular plate.

[0008] Preferably, the pressure plate has multiple grooves inside, and the multiple holes of the circular plate are aligned vertically with the multiple grooves of the pressure plate. The pressure plate is used to assist the circular holes of the circular plate in releasing air while compressing the spring.

[0009] Preferably, the piston is circular and fits completely into the circular slot of the cover. The piston is located at the bottom of the circular plate to block the circular hole. The piston is made of rubber.

[0010] Preferably, both the support ring and the cover are circular, the inner wall of the cover is threaded to the outer wall of the support ring, and the height of the inner wall of the cover is consistent with the height of the support ring.

[0011] Preferably, the inner wall of the tank is conical, with its diameter gradually decreasing from the bottom to the top, and the diameter of the top of the tank is the same as the diameter of the inner wall of the support ring.

[0012] Preferably, the top of the cover is provided with a baffle, and a pivot is provided between the baffle and the cover. The baffle rotates on the top of the cover via the pivot. The baffle is used to prevent accidental activation of the pressing component.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In a jam packaging jar, a circular plate inside the lid is linked to a pressing component. When the pressing plate is pressed, the support rod drives the piston to move down, releasing the piston from blocking the circular hole of the circular plate. At the same time, the groove of the pressing plate aligns with the circular hole to assist air circulation, quickly balancing the air pressure inside and outside the jar. This avoids the jar opening and lid from being tightly sealed due to thermal expansion and contraction, allowing people with weak hand strength to open it easily. This effectively solves the problem of difficulty in opening after refrigeration in the existing technology and improves the convenience of use.

[0014] 2. In a jam packaging jar, the conical design of the inner wall of the jar is adapted to the diameter of the inner wall of the support ring. The inner wall of the jar gradually narrows from bottom to top, reducing jam residue on the jar wall and making it easy to take out. For corners in some square or irregularly shaped jars where jam is prone to remain, this inner wall design that gradually narrows from bottom to top can use gravity to guide the jam to gather towards the center of the bottom of the jar, reducing jam adhesion at corners, reducing the amount of residue in cleaning dead corners, and further improving the thoroughness of taking out and the convenience of cleaning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is an exploded structural diagram of the present invention; Figure 3 This is a schematic diagram of the venting structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the lid of this utility model; Figure 5 This is a schematic diagram of the pressing component structure of this utility model; Figure 6 This is a schematic diagram of the internal structure of the tank of this utility model.

[0016] The components represented by each number in the attached diagram are listed below: 1. Tank body; 11. Support ring; 2. Lid; 21. Circular plate; 22. Pressing assembly; 220. Pressure plate; 221. Support rod; 222. Spring; 223. Piston; 24. Baffle; 240. Rotating shaft. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example Please see Figure 1 - Figure 6 The illustration shows a jam packaging jar, including a jar body 1. A support ring 11 is fixedly connected to the top opening of the jar body 1, and a lid 2 is threadedly connected to the outer wall of the support ring 11. The lid 2 has a circular groove inside, and a circular plate 21 is provided inside the circular groove. The circular plate 21 has multiple circular holes inside. A pressing component 22 is provided between the circular plate 21 and the inner wall of the circular groove. The pressing component 22 is used to adjust the flow state of the holes in the circular plate 21.

[0019] The circular slots inside the lid 2 provide installation space for the circular plate 21. Multiple circular holes on the circular plate 21 serve as channels for airflow between the inside and outside of the can. The pressing component 22 controls the opening and closing of these holes through a linkage mechanism. When the can needs to be opened, pressing the pressing component 22 activates related parts, releasing the seal on the circular holes of the circular plate 21 and allowing air to flow through, thus balancing the air pressure inside and outside the can 1. When airflow is not required, the pressing component 22 resets, resealing the circular holes of the circular plate 21 to ensure the can's airtightness. This coordinated action allows for precise adjustment of the airflow through the holes in the circular plate 21, solving the problem of opening difficulties caused by air pressure issues.

[0020] When implementing, refer to Figure 3 and Figure 5As shown, the pressing assembly 22 includes a support rod 221, which is movably connected inside the circular plate 21. The support rod 221 extends through the top of the circular plate 21 and is fixedly connected to a pressure plate 220. The support rod 221 extends through the bottom of the circular plate 21 and is fixedly connected to a piston 223. A spring 222 is fixedly connected between the bottom of the pressure plate 220 and the top of the circular plate 21.

[0021] Since the support rod 221 passes through the circular plate 21 and can move along it, when it is necessary to balance the air pressure inside and outside the tank, by pressing down the pressure plate 220, the support rod 221 moves down synchronously with the pressure plate 220. At this time, the spring 222 between the bottom of the pressure plate 220 and the top of the circular plate 21 is compressed, and the piston 223 at the bottom of the support rod 221 moves down accordingly, disengaging from the blockage of the circular hole on the circular plate 21. Air inside and outside the tank can circulate through the circular hole, thereby balancing the air pressure. When the pressure plate 220 is released, the compressed spring 222 recovers its elastic deformation, pushing the pressure plate 220 to reset upward. The support rod 221 moves up under the action of the pressure plate 220, and the piston 223 returns to its initial position, re-sealing the circular hole of the circular plate 21 to ensure the sealing state of the tank 1.

[0022] The pressure plate 220 has multiple grooves inside, and the multiple circular holes of the circular plate 21 are aligned vertically with the multiple grooves of the pressure plate 220. The pressure plate 220 is used to assist the circular holes of the circular plate 21 in releasing air while compressing the spring 222. The piston 223 is circular and is completely engaged inside the circular slot of the cover 2. The piston 223 is located at the bottom of the circular plate 21 to block the circular hole. The piston 223 is made of rubber.

[0023] During the operation of the pressing assembly 22, the multiple grooves inside the pressure plate 220 are aligned vertically with the multiple circular holes of the circular plate 21. As the spring 222 is compressed during pressing, the pressure plate 220 moves downwards, and the grooves at its bottom and the circular holes of the circular plate 21 form a continuous airflow channel. At this time, air inside the can enters the grooves of the pressure plate 220 through the circular holes of the circular plate 21, and then exits through the gap between the grooves and the circular slots inside the cover 2. External air can also enter the can through this channel, thereby improving the airflow efficiency between the inside and outside of the can, assisting the circular holes of the circular plate 21 in venting more quickly, further shortening the time for balancing the air pressure inside and outside the can, and making the opening operation more effortless and efficient. When the pressure plate 220 is released, it resets under the action of the spring 222, the alignment of the grooves and the circular holes is released, and the grooves no longer participate in airflow guidance, ensuring that the presence of the grooves does not affect the sealing effect of the piston 223 on the circular holes during sealing.

[0024] Furthermore, since the piston 223 is circular and fully engaged within the circular slot of the cover 2, in its natural state, it is located at the bottom of the circular plate 21, precisely aligning with and tightly blocking the multiple circular holes on the circular plate 21. Because the piston 223 is made of rubber, it possesses excellent elasticity and sealing properties, and can fill the tiny gap between the circular plate 21 and the piston 223 through its own deformation, ensuring that gas inside the can cannot leak through the circular holes when no venting is required, thus guaranteeing the sealing performance of the can body 1. When the pressing assembly 22 is activated, the piston 223 moves downward with the support rod 221, disengaging from the bottom of the circular plate 21 and releasing the blockage of the circular holes. At this time, air inside and outside the can can flow through the circular holes. When the pressing assembly 22 is reset, the piston 223 moves upward under the thrust of the spring 222, again tightly adhering to the bottom of the circular plate 21 and blocking the circular holes. The elasticity of the rubber material restores the sealing state, achieving reliable blocking of the airflow channel.

[0025] Additionally, see Figure 2 As shown, both the support ring 11 and the cover 2 are circular. The inner wall of the cover 2 is threaded to the outer wall of the support ring 11, and the height of the inner wall of the cover 2 is consistent with the height of the support ring 11. The inner wall of the tank 1 is conical, gradually decreasing in diameter from the bottom to the top, and the top diameter of the tank 1 is consistent with the inner diameter of the support ring 11.

[0026] By designing both the support ring 11 and the cover 2 as circular, and connecting the inner wall of the cover 2 to the outer wall of the support ring 11 via threads, and ensuring that the two are at the same height, the cover 2 can form a complete fit with the support ring 11 when screwed on. This not only ensures the stability of the threaded connection but also enhances the uniformity of the overall seal, avoiding gap leakage caused by uneven fit.

[0027] Furthermore, the inner wall of the jar 1 is conical, gradually narrowing in diameter from bottom to top, and the top diameter of the jar 1 is the same as the inner diameter of the support ring 11. This structure allows the jam inside the jar to naturally gather towards the bottom center under the action of gravity, reducing residue on the jar wall and making it easy to take out. At the same time, the fit between the top diameter and the inner wall of the support ring 11 ensures a smooth transition of jam from the jar 1 to the support ring 11, avoiding accumulation at the connection point, further improving the convenience of taking out and the thoroughness of cleaning.

[0028] In addition, see Figure 1 As shown, a baffle 24 is provided on the top of the cover 2, and a rotating shaft 240 is provided between the baffle 24 and the cover 2. The baffle 24 rotates on the top of the cover 2 via the rotating shaft 240. The baffle 24 is used to prevent accidental contact with the pressing component 22.

[0029] Since the pressing component 22 is used to regulate the air pressure inside and outside the can to solve problems such as difficulty in opening due to thermal expansion and contraction, its normal operation requires accurate operation when specific opening needs arise. The baffle 24 is connected to the lid 2 via the rotating shaft 240, allowing it to rotate flexibly around the shaft 240 on top of the lid 2. In situations where the pressing component 22 does not need to be operated during daily storage or transportation, the baffle 24 can rotate to cover the pressing component 22, effectively creating a physical barrier between the pressing component 22 and the outside environment. This prevents accidental pressing of the pressing component 22 by external objects when the can is knocked over, moved, or in other unexpected situations, thus preventing unnecessary air leakage caused by accidental contact. This ensures that the can's sealing performance remains good at all times, further guaranteeing a stable storage environment for the jam inside the can and improving the reliability and safety of the entire packaging can.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jam packaging jar, comprising a jar body (1), wherein a support ring (11) is fixedly connected to the top opening of the jar body (1), and a lid (2) is threadedly connected to the outer wall of the support ring (11); characterized in that: The cover (2) has a circular slot inside, and a circular plate (21) is provided inside the circular slot. The circular plate (21) has multiple circular holes inside. A pressing component (22) is provided between the circular plate (21) and the inner wall of the circular slot, and the pressing component (22) is used to adjust the flow state of the hole in the circular plate (21).

2. The jam packaging jar according to claim 1, characterized in that: The pressing assembly (22) includes a support rod (221), which is movably connected inside the circular plate (21). The support rod (221) extends through the top of the circular plate (21) and is fixedly connected to a pressure plate (220). The support rod (221) extends through the bottom of the circular plate (21) and is fixedly connected to a piston (223). A spring (222) is fixedly connected between the bottom of the pressure plate (220) and the top of the circular plate (21).

3. The jam packaging jar according to claim 2, characterized in that: The pressure plate (220) has multiple grooves inside, and the multiple round holes of the circular plate (21) are aligned vertically with the multiple grooves of the pressure plate (220). The pressure plate (220) is used to assist the round holes of the circular plate (21) in releasing air while compressing the spring (222).

4. The jam packaging jar according to claim 2, characterized in that: The piston (223) is circular and fits completely into the circular slot of the cover (2). The piston (223) is located at the bottom of the circular plate (21) to block the circular hole. The piston (223) is made of rubber.

5. The jam packaging jar according to claim 1, characterized in that: Both the support ring (11) and the cover (2) are circular. The inner wall of the cover (2) is threaded to the outer wall of the support ring (11). The height of the inner wall of the cover (2) is consistent with the height of the support ring (11).

6. The jam packaging jar according to claim 5, characterized in that: The inner wall of the tank (1) is conical, and the diameter gradually decreases from the bottom to the top. The top diameter of the tank (1) is the same as the inner wall diameter of the support ring (11).

7. The jam packaging jar according to claim 1, characterized in that: The top of the cover (2) is provided with a baffle (24), and a pivot (240) is provided between the baffle (24) and the cover (2). The baffle (24) rotates on the top of the cover (2) via the pivot (240). The baffle (24) is used to prevent accidental contact with the pressing component (22).

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