Quick opening device for plastic cover

Abstract

The utility model relates to the field of cover opening devices, and discloses a quick opening device for a plastic cover, which comprises a semi-ring sleeve, an upper holding plate, a lower holding plate and a cover rotating opening, a blending mechanism is arranged on the lower holding plate, an auxiliary mechanism is arranged on the semi-ring sleeve, the blending mechanism comprises a U-shaped frame, the U-shaped frame is connected to the outer walls of the left side and the right side of a lower holding handle in a sliding manner, and the U-shaped frame is connected with the cover rotating opening. Rollers are rotatably connected to the inner walls of the left side and the right side of the U-shaped frame through bearings, an adjusting plate is slidably connected to the inner wall of the bottom of the U-shaped frame, a limiting column is fixedly connected to the outer wall of the top of the adjusting plate, a compression spring is fixedly connected to the outer wall of the bottom of the adjusting plate, and an inclined arc surface is formed in the outer wall of the left side of the limiting column. According to the utility model, the rolling wheels, the U-shaped frame and other structures are arranged, and the U-shaped frame is pushed to adjust the shrinkage size of the semi-ring sleeve according to the plastic cover needing to be opened and closed, so that the cover rotating opening is adaptive to plastic covers of various sizes, the operation is simple and convenient, and the opening is quick.

Description

Technical Field

[0001] This utility model relates to the field of lid opening devices, and in particular to a quick-opening device for plastic lids. Background Technology

[0002] A plastic bottle opener is a tool specifically designed to help open plastic bottle caps. Its small size, portability, and ease of use make it a commonly used and practical tool in homes, kitchens, and outdoors.

[0003] Plastic cap openers solve the pain points of daily cap opening with their simple mechanical structure. Their diverse designs meet the needs of different scenarios. Whether in the home, kitchen or professional field, choosing the right cap opener can significantly improve operating efficiency and safety. By using bite teeth or rubber heads to hold the edge of the cap, the lever principle or increased friction is used to convert the rotational force applied by the hand into torque on the cap, thus easily unscrewing the cap.

[0004] The opening device for plastic caps has the following drawbacks: the size of the retaining ring of the opening device is usually fixed. When opening plastic caps of different sizes, a person needs to find the right angle in advance to fit and rotate the cap, and a certain amount of experience is also required. Otherwise, errors are easy to occur, which will cause the cap to fail to open, making the operation more cumbersome. To solve the above problems, a quick opening device for plastic caps is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a quick-opening device for plastic caps, which aims to improve the problem that the size of the retaining ring of the opening device in the prior art is often fixed. When opening plastic caps of different sizes, a person needs to find the right angle in advance to fit and rotate it, and a certain amount of experience is also required. Otherwise, errors may occur and the opening effect may fail.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick-opening device for a plastic cap, comprising a semi-ring, an upper grip plate, a lower grip plate, and a rotating cap opening. An adjustment mechanism is provided on the lower grip plate, and an auxiliary mechanism is provided on the semi-ring. The adjustment mechanism includes a U-shaped frame, which is slidably connected to the left and right outer walls of the lower grip. Rollers are rotatably connected to the left and right inner walls of the U-shaped frame via bearings. An adjusting plate is slidably connected to the bottom inner wall of the U-shaped frame. A limiting post is fixedly connected to the top outer wall of the adjusting plate, and a compression spring is fixedly connected to the bottom outer wall of the adjusting plate. A sloping arc surface is formed on the left outer wall of the limiting post, and a positioning hole is formed on the top inner wall of the lower grip plate.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a slide groove, which is formed on the inner front wall of the semi-ring, and an arc-shaped plate is slidably connected to the inner rear wall of the slide groove. A spring column is fixedly connected to the outer top wall of the arc-shaped plate, and teeth are hinged to the inner front wall of the arc-shaped plate.

[0008] As a further description of the above technical solution: the width of the roller is adapted to the width of the upper grip plate, and the roller is rotatably connected to the top outer wall of the upper grip plate.

[0009] As a further description of the above technical solution: frosted pads are fixedly connected to the outer walls of the top and bottom sides of the adjustment plate, and the end of the compression spring away from the adjustment plate is fixedly connected to the bottom inner wall of the U-shaped frame.

[0010] As a further description of the above technical solution: the outer side wall of the inclined arc surface is coated with lubricating oil, there are several positioning holes, several positioning holes are opened on the top inner wall of the lower grip plate, and the limiting post is engaged with the inner ring inner wall of the positioning hole.

[0011] As a further description of the above technical solution: there are two arc-shaped plates, which are symmetrical to each other, and there are several spring pillars, with one end of each spring pillar away from the arc-shaped plate fixedly connected to the inner side wall of the semi-ring.

[0012] As a further description of the above technical solution: the outer side wall of the tooth is fixedly connected with rubber, and the thickness of the rubber is three millimeters.

[0013] As a further description of the above technical solution: the semi-ring sleeve is made of PET material, the upper grip plate is fixedly connected to the right outer wall of the semi-ring sleeve, and the lower grip plate is fixedly connected to the right outer wall of the semi-ring sleeve.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting up structures such as rollers, U-shaped frames, and positioning holes, the U-shaped frame is pushed to adjust the shrinkage size of the semi-ring according to the plastic cover to be opened and closed, so that the rotating cover opening can be adapted to various sizes of plastic covers, making the operation simple, convenient and quick to open.

[0016] 2. In this utility model, by setting up structures such as arc-shaped plates and teeth, the teeth can rotate automatically when they are in contact with the curved surface of the plastic cover of different sizes, so as to maximize the frictional contact force between the teeth and the curved surface of the plastic cover and avoid slippage that would cause the twisting to open the cover to fail. Attached Figure Description

[0017] Figure 1 This is a schematic front view of the overall design of a quick-opening device for a plastic cap proposed in this utility model.

[0018] Figure 2 This is a side view of the overall structure of a quick-opening device for a plastic cap proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the adjustment mechanism of a quick-opening device for a plastic cap proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the auxiliary mechanism of a quick-opening device for a plastic cap proposed in this utility model.

[0021] Legend:

[0022] 1. Semi-ring sleeve; 2. Upper grip plate; 3. Lower grip plate; 4. Turning cap opening; 5. Adjustment mechanism; 51. U-shaped frame; 52. Roller; 53. Adjusting plate; 54. Compression spring; 55. Limiting post; 56. Sloping arc surface; 57. Positioning hole; 6. Auxiliary mechanism; 61. Slide groove; 62. Arc plate; 63. Spring post; 64. Tooth. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a quick-opening device for a plastic cap, comprising a semi-ring 1, an upper grip plate 2, a lower grip plate 3, and a rotating cap opening 4. An adjusting mechanism 5 is provided on the lower grip plate 3, and an auxiliary mechanism 6 is provided on the semi-ring 1. The adjusting mechanism 5 includes a U-shaped frame 51, which is slidably connected to the left and right outer walls of the lower grip plate 3. Rollers 52 are rotatably connected to the left and right inner walls of the U-shaped frame 51 via bearings. An adjusting plate 53 is slidably connected to the bottom inner wall of the U-shaped frame 51. A limiting post 55 is fixedly connected to the top outer wall of the section plate 53. By setting the limiting post 55 to engage with the positioning hole 57, the U-shaped frame 51 is limited when it moves backward. A compression spring 54 is fixedly connected to the bottom outer wall of the adjusting plate 53. An inclined arc surface 56 is provided on the left outer wall of the limiting post 55. The downward movement of the limiting post 55 is released by setting the inclined arc surface 56. A positioning hole 57 is provided on the top inner wall of the lower grip plate 3. The positioning hole 57 provides multiple points of limitation for the limiting post 55.

[0025] Reference Figures 2-4The width of roller 52 is adapted to the width of upper grip plate 2. Roller 52 is tactilely connected to the top outer wall of upper grip plate 2. Frosted pads are fixedly connected to the top and bottom outer walls of adjusting plate 53. The frosted pads increase the friction of the surface of adjusting plate 53 and reduce slippage when gripped. The end of compression spring 54 away from adjusting plate 53 is fixedly connected to the bottom inner wall of U-shaped frame 51. The compression spring 54 generates a continuous pushing force on adjusting plate 53. The outer wall of the side of the inclined arc surface 56 is coated with... The lubricating oil has several positioning holes 57, which are opened on the top inner wall of the lower grip plate 3. The limiting post 55 is engaged with the inner wall of the inner ring of the positioning hole 57. The semi-ring sleeve 1 is made of PET material. PET has good mechanical properties, and its impact strength is 3 to 5 times that of other film materials. It has good folding resistance, is non-toxic and odorless, and has good hygiene and safety. It can be directly used for food packaging. The upper grip plate 2 is fixedly connected to the right outer wall of the semi-ring sleeve 1, and the lower grip plate 3 is fixedly connected to the right outer wall of the semi-ring sleeve 1.

[0026] Reference Figures 3-4 The auxiliary mechanism 6 includes a slide 61, which is located on the inner front wall of the semi-ring 1. The slide 61 allows the mechanism to slide on the surface of the lower grip plate 3. An arc-shaped plate 62 is slidably connected to the inner rear wall of the slide 61. A spring column 63 is fixedly connected to the outer top wall of the arc-shaped plate 62. The spring column 63 exerts a certain thrust on the arc-shaped plate 62. A tooth 64 is hinged to the inner front wall of the arc-shaped plate 62. The tooth 64 facilitates the adaptive adjustment of the angle of the plastic caps of different sizes. There are two arc-shaped plates 62, which are symmetrical to each other. There are several spring columns 63. The ends of the spring columns 63 away from the arc-shaped plates 62 are fixedly connected to the inner side wall of the semi-ring 1. Rubber is fixedly connected to the outer side wall of the tooth 64. The rubber has extremely high elasticity and can produce large deformation on the contact surface, thereby increasing the contact area and friction. In addition, the surface roughness of the rubber is also high, which helps to improve the friction. The thickness of the rubber is three millimeters.

[0027] Working principle: The semi-ring 1 is fitted onto the plastic cap according to its size. Then, the U-shaped frame 51 is pushed, causing the limiting post 55 to move forward. The inclined arc surface 56 of the limiting post 55 contacts the surface of the positioning hole 57, causing the inclined arc surface 56 to press the limiting post 55 downwards. This releases the forward movement limit of the U-shaped frame 51. The movement of the U-shaped frame 51 drives the roller 52 to press the upper grip plate 2 and lower grip plate 3 together, bending and tightening the opening 4 of the semi-ring 1, so that the teeth 64 contact the surface of the plastic cap. Then, the upper grip plate 2 or the lower grip plate 3 is rotated. Plate 3 causes the semi-ring sleeve 1 to rotate, and the rotation of the semi-ring sleeve 1 causes the teeth 64 to rotate and open the plastic cover. At the same time, when using different plastic covers, the teeth 64 adaptively adjust their angle when they are in contact with the surface of the plastic cover because the curvature of the plastic cover is different. This allows multiple teeth 64 to maximize contact with the surface of different plastic cover curvatures. At the same time, when the semi-ring sleeve 1 tightens, the clamping force of the teeth 64 increases and squeezes the arc plate 62. The arc plate 62 squeezes the spring column 63, so that the teeth 64 continuously generate a squeezing and clamping force on the surface of the plastic cover, reducing the possibility of the teeth 64 separating from the surface of the plastic cover and loosening.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-opening device for a plastic cap, comprising a semi-ring (1), an upper grip plate (2), a lower grip plate (3), and a rotating cap opening (4), characterized in that: The lower grip plate (3) is provided with an adjustment mechanism (5), and the semi-ring sleeve (1) is provided with an auxiliary mechanism (6). The dispensing mechanism (5) includes a U-shaped frame (51), which is slidably connected to the outer walls of the left and right sides of the lower grip plate (3). Rollers (52) are rotatably connected to the inner walls of the left and right sides of the U-shaped frame (51) through bearings. An adjusting plate (53) is slidably connected to the inner wall of the bottom of the U-shaped frame (51). A limiting post (55) is fixedly connected to the outer wall of the top of the adjusting plate (53). A compression spring (54) is fixedly connected to the outer wall of the bottom of the adjusting plate (53). An inclined arc surface (56) is opened on the outer wall of the left side of the limiting post (55). A positioning hole (57) is opened on the inner wall of the top of the lower grip plate (3).

2. The quick-opening device for a plastic cap according to claim 1, characterized in that: The auxiliary mechanism (6) includes a slide (61), which is opened on the front inner wall of the semi-ring (1). An arc plate (62) is slidably connected to the rear inner wall of the slide (61). A spring column (63) is fixedly connected to the top outer wall of the arc plate (62). A tooth (64) is hinged to the front inner wall of the arc plate (62).

3. The quick-opening device for a plastic cap according to claim 1, characterized in that: The width of the roller (52) is adapted to the width of the upper grip plate (2), and the roller (52) is tumblingly connected to the top outer wall of the upper grip plate (2).

4. The quick-opening device for a plastic cap according to claim 1, characterized in that: The top and bottom sides of the adjustment plate (53) are fixedly connected with frosted pads, and the end of the compression spring (54) away from the adjustment plate (53) is fixedly connected to the bottom inner wall of the U-shaped frame (51).

5. The quick-opening device for a plastic cap according to claim 1, characterized in that: The outer side wall of the inclined arc surface (56) is coated with lubricating oil. There are several positioning holes (57), and several positioning holes (57) are opened on the top inner wall of the lower grip plate (3). The limiting post (55) is engaged with the inner ring inner wall of the positioning hole (57).

6. A quick-opening device for a plastic cap according to claim 2, characterized in that: There are two arc-shaped plates (62), which are symmetrical to each other. There are several spring pillars (63), and one end of each spring pillar (63) away from the arc-shaped plate (62) is fixedly connected to the inner side wall of the semi-ring (1).

7. A quick-opening device for a plastic cap according to claim 2, characterized in that: The outer side wall of the tooth (64) is fixedly connected with rubber, the thickness of which is three millimeters.

8. The quick-opening device for a plastic cap according to claim 1, characterized in that: The semi-ring sleeve (1) is made of PET material. The upper grip plate (2) is fixedly connected to the right outer wall of the semi-ring sleeve (1), and the lower grip plate (3) is fixedly connected to the right outer wall of the semi-ring sleeve (1).

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