A pre-venting cup lid with a two-stage opening mechanism

Abstract

This utility model discloses a two-stage pre-venting cup lid, belonging to the field of cup lid technology. It includes an upper lid, a middle lid, and a lower lid. The upper lid and the middle lid are rotatably connected by a torsion spring, and the middle lid and the lower lid are also rotatably connected by a torsion spring. A middle plate is fixedly installed inside the middle lid, and a motor is fixedly installed on the upper part of the middle plate. A cam is installed at the end of the motor's output shaft. A locking block and a connecting seat are installed inside the middle lid, with the connecting seat located in front of the locking block. A connecting shaft is fixedly installed at the lower part of the locking block and rotatably connected to the connecting seat. The locking block and the cam are positioned correspondingly. A locking rod is installed at the lower part of the upper lid, corresponding to the locking block. A rectangular hole is provided through the middle lid at the corresponding position of the locking rod. For press-to-open cup lids, this utility model effectively avoids the discomfort caused by hot air directly hitting the user's face upon opening.

Description

Technical Field

[0001] This utility model relates to the field of cup lid technology, specifically a two-stage opening pre-venting cup lid. Background Technology

[0002] Cups are common household items, and carrying a cup when going out is becoming increasingly common. These cups are usually designed with lids that open by pressing, allowing for direct drinking through the rim or sipping through a straw. When the cup contains hot water, hot steam will escape through the rim or straw the moment the lid is opened. This escaping process may cause the hot steam to hit the user's face directly, causing discomfort. Therefore, how to prevent hot steam from hitting the user's face directly when the lid is opened has become an urgent problem for relevant technical personnel to solve. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a pre-venting cup lid with a two-stage opening mechanism.

[0004] A two-stage pre-venting cup lid includes an upper lid, a middle lid, and a lower lid. The upper lid and the middle lid are rotatably connected by a torsion spring, and the middle lid and the lower lid are also rotatably connected by a torsion spring. A middle plate is fixedly installed inside the middle lid, and a motor is fixedly installed on the upper part of the middle plate. A cam is installed at the end of the motor's output shaft. A locking block and a connecting seat are installed inside the middle lid, with the connecting seat located in front of the locking block. A connecting shaft is fixedly installed below the locking block and rotatably connected to the connecting seat. The locking block and the cam are positioned correspondingly. A locking rod is installed at the lower part of the upper lid, corresponding to the locking block. A rectangular hole is provided through the middle lid at a position corresponding to the locking rod.

[0005] Furthermore, a first locking part is provided at the front of the lock block, the first locking part extends backward, a pushing part is provided at the middle position of the lower part of the lock rod, the upper part of the first locking part and the lower part of the pushing part are both provided with inclined surfaces, a second locking part is provided at the rear of the lock block, the second locking part extends forward, and a lock hole is provided through the lower part of the lock rod.

[0006] Furthermore, the cam has a protrusion on the side away from the motor, the protrusion being spiral-shaped, and the locking block has a contact portion on the side closer to the motor, the surface of the contact portion being an arc-shaped curved surface. When the cam rotates clockwise, the protrusion and the contact portion slide into contact.

[0007] Furthermore, a spring is provided inside the middle cover. The spring is located in front of the locking block and above the connecting shaft, and both ends of the spring are fixedly connected to the locking block and the middle cover, respectively.

[0008] Furthermore, a straw is fixedly installed on the upper part of the lower cover, the straw passes through the middle plate and the middle cover, and an air hole is provided through the inside of the middle cover and in front of the straw. A pressure plate is provided on the lower part of the upper cover. When the upper cover is closed, the pressure plate presses down on the straw, at which time the straw blocks the air hole.

[0009] Furthermore, a battery is fixedly mounted on the upper part of the middle plate, the motor is connected to the battery, and a fingerprint module is fixedly mounted on the front part of the middle cover.

[0010] The beneficial effects of this two-stage opening pre-venting cup lid are as follows: The spring's push on the locking block, along with the sloping design of the upper part of the first locking part and the lower part of the pushing part, effectively ensures the smooth insertion of the locking rod into the locking block and the stability of the locking between the first locking part and the lock hole. The sliding contact between the protrusion and the contact part provides a structural basis for the controllable forward rotation of the upper part of the locking block, thereby effectively ensuring the engagement of the second locking part with the lock hole and the pre-venting of the initial opening gap of the top cover. The spring's push on the locking block effectively ensures the separation of the second locking part from the lock hole and the complete opening of the top cover. For press-to-open cup lids, the pre-venting effectively prevents hot air from directly hitting the user's face and causing discomfort at the moment of opening the lid. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the protection scope of this utility model.

[0012] Figure 1 This is a schematic diagram illustrating the application scenario of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model (with the top cover hidden). Figure 3 This is a schematic diagram of the internal structure of the present invention (hiding the top cover and middle cover); Figure 4 This is a schematic diagram of the internal structure of this utility model (hidden middle plate and lower cover); Figure 5 This is a cross-sectional view of the present invention (with the middle plate hidden). Figure 6 This is a schematic diagram of the internal structure of this utility model (hidden middle cover and lower cover); Figure 7 This is an enlarged structural schematic diagram of the locking block of this utility model.

[0013] Among them, 1-top cover, 2-middle cover, 3-fingerprint module, 4-straw, 5-air hole, 6-rectangular hole, 7-bottom cover, 8-battery, 9-lock block, 10-spring, 11-cam, 12-motor, 13-connecting seat, 14-locking rod, 15-second locking part, 16-first locking part, 17-push part, 18-lock hole, 19-contact part, 20-connecting shaft, 21-middle plate, 22-pressure plate. Detailed Implementation

[0014] To make the explanation clearer, the pre-venting cup lid with a two-stage opening mechanism of this utility model will be further described in conjunction with the accompanying drawings.

[0015] A two-stage pre-venting cup lid includes an upper cover 1, a middle cover 2, and a lower cover 7. The upper cover 1 and the middle cover 2 are rotatably connected by a torsion spring, and the middle cover 2 and the lower cover 7 are also rotatably connected by a torsion spring. A middle plate 21 is fixedly installed inside the middle cover 2. A motor 12 is fixedly installed on the upper part of the middle plate 21. A cam 11 is installed at the end of the output shaft of the motor 12. A locking block 9 and a connecting seat 13 are installed inside the middle cover 2. The connecting seat 13 is located in front of the locking block 9. A connecting shaft 20 is fixedly installed at the lower part of the locking block 9 and is rotatably connected to the connecting seat 13. The locking block 9 and the cam 11 are positioned correspondingly. A locking rod 14 is installed at the lower part of the upper cover 1, and the locking rod 14 is positioned correspondingly to the locking block 9. A rectangular hole 6 is provided through the middle cover 2 at a position corresponding to the locking rod 14.

[0016] Furthermore, a first locking part 16 is provided at the front of the locking block 9, the first locking part 16 extends rearward, a pushing part 17 is provided at the middle position of the lower part of the locking rod 14, the upper part of the first locking part 16 and the lower part of the pushing part 17 are both provided with inclined surfaces, a second locking part 15 is provided at the rear of the locking block 9, the second locking part 15 extends forward, and a lock hole 18 is provided through the lower part of the locking rod 14.

[0017] Furthermore, the cam 11 has a protrusion on the side away from the motor 12, and the protrusion is spiral-shaped. The locking block 9 has a contact part 19 on the side close to the motor 12, and the surface of the contact part 19 is an arc-shaped curved surface. When the cam 11 rotates clockwise, the protrusion and the contact part 19 slide in contact.

[0018] Furthermore, a spring 10 is provided inside the middle cover 2. The spring 10 is located in front of the locking block 9 and above the connecting shaft 20. The two ends of the spring 10 are fixedly connected to the locking block 9 and the middle cover 2, respectively.

[0019] Furthermore, a straw 4 is fixedly installed on the upper part of the lower cover 7. The straw 4 passes through the middle plate 21 and the middle cover 2. An air hole 5 is provided inside the middle cover 2 and in front of the straw 4. A pressure plate 22 is provided at the lower part of the upper cover 1. When the upper cover 1 is closed, the pressure plate 22 presses down on the straw 4, at which time the straw 4 blocks the air hole 5.

[0020] Furthermore, a battery 8 is fixedly installed on the upper part of the middle plate 21, the motor 12 is connected to the battery 8, and a fingerprint module 3 is fixedly installed on the front of the middle cover 2.

[0021] The working principle of this two-stage pre-venting cup lid is as follows: In the initial state, the lower cover 7 is threadedly connected to the cup body, and the middle cover 2 and the upper cover 1 are both closed. At this time, the first locking part 16 is engaged with the lock hole 18, and the pushing part 17 is engaged with the first locking part 16. When it is necessary to open the upper cover 1, fingerprint recognition is performed through the fingerprint module 3. After successful recognition, the motor 12 starts, and the output shaft of the motor 12 drives the cam 11 to rotate forward. The spiral design of the raised surface of the cam 11 makes the thickness of the raised part gradually increase in the axial direction. The increase in thickness and the sliding contact between the raised part and the contact part 19 make the cam 11 push the upper part of the locking block 9 to rotate forward around the connecting shaft 20. During this process, the first locking part 16 disengages. Lock hole 18 and locking rod 14 move upward with the upper cover 1, and then the second locking part 15 engages with the lock hole 18. At this time, the upper cover 1 is initially opened, and a gap is formed between the upper cover 1 and the middle cover 2. The hot air discharged by the straw 4 and the air hole 5 flows out through the gap for pre-venting. The output shaft of the motor 12 reverses until the cam 11 is reset. The locking block 9 is no longer limited by the cam 11. The spring 10 pushes the upper part of the locking block 9 to rotate backward around the connecting shaft 20, so that the locking rod 14 completely separates from the locking block 9 through the gap between the first locking part 16 and the second locking part 15. The upper cover 1 is fully opened. Since pre-venting has been performed, even if there is still hot air between the upper cover 1 and the middle cover 2, it will not rush out in a high-pressure state, and thus will not rush to the user's face and cause discomfort.

[0022] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A two-stage pre-venting cup lid, comprising an upper lid, a middle lid, and a lower lid, characterized in that: The upper cover and the middle cover are rotatably connected by a torsion spring, and the middle cover and the lower cover are rotatably connected by a torsion spring. A middle plate is fixedly installed inside the middle cover, and a motor is fixedly installed on the upper part of the middle plate. A cam is installed at the end of the output shaft of the motor. A locking block and a connecting seat are installed inside the middle cover. The connecting seat is located in front of the locking block. A connecting shaft is fixedly installed on the lower part of the locking block. The connecting shaft is rotatably connected to the connecting seat. The locking block and the cam are positioned correspondingly. A locking rod is installed on the lower part of the upper cover. The locking rod and the locking block are positioned correspondingly. A rectangular hole is provided through the middle cover at the corresponding position of the locking rod.

2. The pre-venting cup lid with a two-stage opening mechanism according to claim 1, characterized in that, The lock block has a first locking part at the front, which extends rearward. The lock rod has a pushing part at the middle of its lower part. The upper part of the first locking part and the lower part of the pushing part are both provided with inclined surfaces. The lock block has a second locking part at the rear, which extends forward. The lock rod has a through-hole at its lower part.

3. A two-stage pre-venting cup lid according to claim 1, characterized in that, The cam has a protrusion on the side away from the motor, and the protrusion is spiral-shaped. The locking block has a contact part on the side closer to the motor, and the surface of the contact part is an arc-shaped curved surface. When the cam rotates forward, the protrusion and the contact part slide into contact.

4. A two-stage pre-venting cup lid according to claim 1, characterized in that, A spring is installed inside the middle cover. The spring is located in front of the lock block and above the connecting shaft. Both ends of the spring are fixedly connected to the lock block and the middle cover, respectively.

5. A two-stage pre-venting cup lid according to claim 1, characterized in that, A straw is fixedly installed on the upper part of the lower cover. The straw passes through the middle plate and the middle cover. An air hole is provided inside the middle cover and in front of the straw. A pressure plate is provided at the lower part of the upper cover. When the upper cover is closed, the pressure plate presses down on the straw, at which time the straw blocks the air hole.

6. A two-stage pre-venting cup lid according to claim 1, characterized in that, A battery is fixedly mounted on the upper part of the middle plate, the motor is connected to the battery, and a fingerprint module is fixedly mounted on the front of the middle cover.

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