A plastic bag bottom support device

Abstract

The utility model discloses a kind of plastic bag bottom support device, including first support plate, the first support plate is placed in plastic bag bottom;The inside of first support plate is slidably connected with second support plate, and second support plate is contained in plastic bag bottom, and the inside of second support plate is slidably connected with clamping block, the outer end of clamping block is inserted into the inside of clamping groove and constitutes engagement mechanism, and clamping groove is equidistantly arranged in the inside of first support plate, the inner end of clamping block is connected with first spring, and the inner end of first spring is connected in the inside of second support plate and constitutes limiting mechanism.The plastic bag bottom support device is installed with clamping block, by the movement of second support plate, then the size of second support plate and first support plate can be adjusted according to plastic bag bottom, so as to adapt to plastic bag of different sizes, by the connection of clamping block and clamping groove, then second support plate can be limited, so as to have better stability.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag technology, specifically to a bottom support device for a plastic bag. Background Technology

[0002] Plastic bag bottom support devices have become an indispensable part of modern packaging design by protecting the contents, improving user experience, optimizing logistics efficiency, and practicing environmental protection.

[0003] Because existing plastic bags lack a support mechanism at the bottom, the bottom of the bag is relatively soft. When items are placed inside, the bottom of the bag will squeeze the items. Since plastic bags come in various sizes, support devices of different sizes are needed to support the bottom of the bag, resulting in poor adaptability of the support devices.

[0004] Therefore, we proposed a bottom support device for plastic bags that can effectively solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a bottom support device for plastic bags, in order to solve the problem mentioned in the background art that the sizes of plastic bags on the market are quite different, which requires the use of support devices of different sizes to support the bottom of the plastic bags, thus resulting in poor adaptability of the support devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bottom support device for a plastic bag, comprising a first support plate, wherein the first support plate is placed at the bottom of the plastic bag;

[0007] The first support plate is slidably connected to the inside of the second support plate, and the second support plate is housed at the bottom of the plastic bag. The second support plate is slidably connected to the inside of the second support plate. The outer end of the card block extends into the inside of the card slot to form a locking mechanism. The card slot is equally spaced inside the first support plate. The inner end of the card block is connected to the first spring, and the inner end of the first spring is connected to the inside of the second support plate to form a limiting mechanism.

[0008] Preferably, the right side of the outer end of the card block is arc-shaped, and the arc-shaped position of the outer end of the card block fits against the outer side of the inner wall of the card slot.

[0009] Preferably, the inner end of the card block is connected to a pull rope, and the right end of the pull rope extends out of the interior of the second support plate to form a sliding mechanism.

[0010] Preferably, the bend of the pull rope is fitted with a pulley, and the pulley is connected to the inside of the second support plate via a bearing.

[0011] Preferably, the pull ring at the right end of the pull rope is fitted into the interior of the second support plate, and the pull ring on the right side of the pull rope is higher than the plane of the second support plate.

[0012] Preferably, a second spring is connected to the left end of the second support plate, and the left end of the second spring is connected inside the first support plate to form a limiting mechanism.

[0013] Preferably, the second spring is provided in two sets, and both sets of the second spring are located at the upper and lower ends on the left side of the second support plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the bottom support device of the plastic bag has good adaptability and is easy to reset; the use of the locking block facilitates the movement of the second support plate, thereby achieving the purpose of size adjustment and improving the adaptability of use; and the use of the second spring facilitates the reset of the second support plate. The specific details are as follows:

[0015] (1) A locking block is provided. By moving the second support plate, the size of the second support plate and the first support plate can be adjusted according to the bottom of the plastic bag, so as to adapt to plastic bags of different sizes. By connecting the locking block and the slot, the second support plate can be limited, thus having good stability.

[0016] (2) A second spring is provided, and the force of the second spring can drive the second support plate to reset, thereby making the second support plate easier to use next time and thus improving the ease of use.

[0017] (3) A pull rope is provided, which is connected to the inner end of the block. The right end of the pull rope extends out of the interior of the second support plate to form a sliding mechanism, so that the pull rope can drive the block to move, thereby facilitating the resetting of the block.

[0018] (4) A pulley is provided, which is attached to the pulley by bending the rope, and the pulley is connected to the inside of the second support plate by a bearing, so that the pulley can reduce the wear of the pull rope and thus improve the service life of the pull rope.

[0019] (5) A pull rope is provided, and the pull ring at the right end of the pull rope is in contact with the inside of the second support plate. The pull ring on the right side of the pull rope is higher than the plane of the second support plate, which makes it easier to pull the pull rope and avoids the pull rope being hidden and thus making it impossible to pinch. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the second support plate after it has been moved according to this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the first support plate and the second support plate of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the connection structure between the second support plate and the second spring of this utility model;

[0025] Figure 6 This is a schematic diagram of the connection structure between the rope and the pulley of this utility model.

[0026] In the diagram: 1. First support plate; 2. Second support plate; 3. Locking block; 4. Locking groove; 5. First spring; 6. Pull rope; 7. Pulley; 8. Second spring. Detailed Implementation

[0027] 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.

[0028] Example 1: A bottom support device for plastic bags solves the problem that existing plastic bags come in various sizes, requiring different sized support devices to support the bottom of the bags, thus resulting in poor adaptability of the support devices. The following method is disclosed:

[0029] The first support plate 1 is placed at the bottom of the plastic bag; the second support plate 2 is slidably connected inside the first support plate 1 and is housed at the bottom of the plastic bag. The second support plate 2 is slidably connected inside the second support plate 2. The outer end of the card block 3 extends into the inside of the card slot 4 to form a locking mechanism. The card slot 4 is equally spaced inside the first support plate 1. The inner end of the card block 3 is connected to the first spring 5, and the inner end of the first spring 5 is connected to the inside of the second support plate 2 to form a limiting mechanism. The right side of the outer end of the card block 3 is arc-shaped, and the arc-shaped position of the outer end of the card block 3 is attached to the outer side of the inner wall of the card slot 4.

[0030] refer to Figures 1 to 4The first support plate 1 and the second support plate 2 are placed at the bottom of the plastic bag. Then, by pulling the second support plate 2, it can move inside the first support plate 1, thereby changing the distance between the second support plate 2 and the first support plate 1. The movement of the second support plate 2 will cause the locking block 3 to move, which will then press the locking groove 4, causing the locking block 3 to slide inward into the second support plate 2. The movement of the locking block 3 will also press the first spring 5, causing the first spring 5 to compress and be forced, thus allowing the locking block 3 to disengage from the locking groove 4. After the second support plate 2 is attached to the bottom of the plastic bag, the force of the first spring 5 will push the locking block 3 to move, allowing the locking block 3 to extend into the locking groove 4 to form a lock. This will fix the position of the second support plate 2, and the second support plate 2 can be adjusted to accommodate plastic bags of different sizes.

[0031] Example 2: A bottom support device for a plastic bag solves the problem of the second support plate 2 being difficult to reset in Example 1. The use of a pull rope 6 facilitates the reset of the second support plate 2. The following is disclosed:

[0032] The inner end of the locking block 3 is connected to a pull rope 6, and the right end of the pull rope 6 extends out of the interior of the second support plate 2 to form a sliding mechanism. The pull rope 6 is bent and fits against a pulley 7, and the pulley 7 is connected to the interior of the second support plate 2 through a bearing. The pull ring at the right end of the pull rope 6 fits against the interior of the second support plate 2, and the pull ring on the right side of the pull rope 6 is higher than the plane of the second support plate 2.

[0033] refer to Figures 1 to 4 and Figure 6 When resetting is required, pulling the pull rope 6 causes the pull rope 6 to move, which in turn moves the locking block 3 via the pulley 7. This allows the locking block 3 to be housed inside the second support plate 2, causing the locking block 3 to compress the first spring 5 again. As a result, the locking block 3 moves away from the locking slot 4, allowing the second support plate 2 to move in the opposite direction and re-enter the first support plate 1 to achieve the resetting purpose.

[0034] Example 3: A bottom support device for a plastic bag solves the problem in Example 1 where the second support plate 2 cannot automatically reset. The use of a second spring 8 facilitates the reset of the second support plate 2. The following is disclosed:

[0035] The left end of the second support plate 2 is connected to the second spring 8, and the left end of the second spring 8 is connected to the inside of the first support plate 1 to form a limiting mechanism. There are two sets of the second spring 8, and both sets of the second spring 8 are located at the upper and lower ends on the left side of the second support plate 2.

[0036] refer to Figure 3 and Figure 5 When the second support plate 2 extends out of the first support plate 1, the movement of the second support plate 2 stretches the second spring 8, which in turn causes the second spring 8 to be stretched and subjected to force. When the second support plate 2 returns to its original position, after the locking block 3 disengages from the locking slot 4, the force of the second spring 8 drives the second support plate 2 to slide inside the first support plate 1, thereby enabling the second support plate 2 to achieve automatic reset and improving the ease of use.

[0037] Working principle: When using this type of plastic bag bottom support device, firstly, refer to... Figures 1 to 4 The first support plate 1 and the second support plate 2 are placed at the bottom of the plastic bag. Then, by pulling the second support plate 2, the second support plate 2 can move inside the first support plate 1. The movement of the second support plate 2 will drive the locking block 3 to move, which will then press the locking groove 4 and the first spring 5, thus compressing the first spring 5. After the second support plate 2 is attached to the bottom of the plastic bag, the locking block 3 can then extend into the locking groove 4 to form a locking. The second support plate 2 can then be adjusted to accommodate plastic bags of different sizes.

[0038] refer to Figures 1 to 4 and Figure 6 When reset is required, by pulling the pull rope 6, the pull rope 6 moves and drives the locking block 3 to move through the pulley 7. As a result, the locking block 3 will squeeze the first spring 5 again, so that the first spring 5 is compressed by force. The movement of the locking block 3 will disengage from the locking groove 4, so that the second support plate 2 can be inserted back into the interior of the first support plate 1 to achieve the purpose of reset.

[0039] refer to Figure 3 and Figure 5 When the second support plate 2 extends out of the first support plate 1, the movement of the second support plate 2 stretches the second spring 8. After the locking block 3 disengages from the locking slot 4, the force of the second spring 8 drives the second support plate 2 to slide inside the first support plate 1, thereby improving the ease of use.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bottom support device for a plastic bag, comprising a first support plate (1) placed at the bottom of the plastic bag; Its features are, The first support plate (1) is slidably connected to the second support plate (2), and the second support plate (2) is housed at the bottom of the plastic bag. The second support plate (2) is slidably connected to the second support plate (2), and the outer end of the second support plate (3) extends into the inside of the slot (4) to form a locking mechanism. The slots (4) are equally spaced inside the first support plate (1). The inner end of the second support plate (3) is connected to the first spring (5), and the inner end of the first spring (5) is connected to the inside of the second support plate (2) to form a limiting mechanism.

2. The bottom support device for a plastic bag according to claim 1, characterized in that: The right side of the outer end of the card block (3) is arc-shaped, and the arc-shaped position of the outer end of the card block (3) is attached to the outer side of the inner wall of the card slot (4).

3. The bottom support device for a plastic bag according to claim 1, characterized in that: The inner end of the card block (3) is connected to a pull rope (6), and the right end of the pull rope (6) extends out of the interior of the second support plate (2) to form a sliding mechanism.

4. The bottom support device for a plastic bag according to claim 3, characterized in that: The pull rope (6) is bent and fitted with a pulley (7), and the pulley (7) is connected to the inside of the second support plate (2) through a bearing.

5. A bottom support device for a plastic bag according to claim 3, characterized in that: The pull ring at the right end of the pull rope (6) is in contact with the interior of the second support plate (2), and the pull ring on the right side of the pull rope (6) is higher than the plane of the second support plate (2).

6. The bottom support device for a plastic bag according to claim 1, characterized in that: The left end of the second support plate (2) is connected to a second spring (8), and the left end of the second spring (8) is connected inside the first support plate (1) to form a limiting mechanism.

7. A bottom support device for a plastic bag according to claim 6, characterized in that: The second spring (8) is provided in two sets, and both sets of the second spring (8) are located at the upper and lower ends on the left side of the second support plate (2).

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