A quick-release sealing cup lid and cup thereof

Abstract

The present invention provides a quick-release sealed cup lid and a cup thereof, which comprises a shell, a pull plate slidably installed in the shell, a sealing member and an extrusion seat; the extrusion seat is mounted on the lower side of the pull plate and is driven and connected to the pull plate through a lever connecting member; one end of the lever connecting member is hinged to the shell through a first hinge point, the extrusion seat is connected to the lever connecting member through a second hinge point, and the pull plate is connected to the other end of the lever connecting member through a third hinge point, and the distance between the third hinge point and the first hinge point is greater than the distance between the second hinge point and the first hinge point; when in use, the pull plate slides up to drive the lever connecting member to swing, thereby driving the extrusion seat to squeeze the sealing member; the quick-release sealed cup lid and the cup thereof provided by the present invention overcome the defect that it is difficult to pull the pull ring of the existing non-threaded cup lid.

Description

Technical Field

[0001] The present invention relates to the field of cup covers, in particular to a quick-release sealing cup cover and a cup thereof. Background Art

[0002] Currently, most water cups on the market have a lid and body connected by threads. A sealing ring is installed between the lid and the body. When the threads of the lid and the body are tightened, the sealing ring is compressed and deformed, achieving a circumferential seal at the mouth of the cup. To facilitate the quick removal and installation of the lid, people have designed a threadless cup.

[0003] For example, patent No. CN214072806U discloses a threadless portable cup, which realizes circumferential sealing by pulling the pull ring upward, thereby driving the elastic sealing ring to be squeezed and deformed. After the pull ring is pulled upward to the highest position, the positioning pin slides out of the guide slot along the guide slope and inserts into the positioning slot, thereby locking the pull ring. In this structure, the pull ring and the boss are directly connected, and the elastic sealing ring is squeezed and deformed by the boss. Since the sealing ring needs to be squeezed and deformed to lock the cup body, it takes a lot of force to pull the pull ring upward, which is laborious and inconvenient to use. Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] The problem to be solved by the present invention is to provide a quick-release sealed cup lid and a cup thereof, so as to overcome the defect that the pull ring of the existing non-threaded cup lid is more laborious to pull.

[0006] (2) Technical solution

[0007] In order to solve the technical problem, the present invention provides a quick-release sealed cup cover, comprising a shell, a pull plate slidably installed in the shell, a seal and an extrusion seat for extruding the seal; the extrusion seat is mounted on the lower side of the pull plate and is driven and connected to the pull plate through a lever connector; one end of the lever connector is hinged to the shell through a first hinge point, the extrusion seat is connected to the lever connector through a second hinge point, and the pull plate is connected to the other end of the lever connector through a third hinge point, and the distance between the third hinge point and the first hinge point is greater than the distance between the second hinge point and the first hinge point; when in use, the pull plate slides up to drive the lever connector to swing, thereby driving the extrusion seat to squeeze the seal.

[0008] Furthermore, the lever connecting member is provided with a first waist-shaped groove for facilitating the movement of the second hinge point, and a second waist-shaped groove for facilitating the movement of the third hinge point.

[0009] Furthermore, there are two lever connectors, symmetrically arranged on both sides of the pull plate. The housing has symmetrically arranged mounting brackets on both sides, and the mounting brackets are provided with extension plates extending toward the lever connectors. One end of the lever connector is hinged to the corresponding extension plate through the first hinge point a.

[0010] Furthermore, a switch is hingedly connected to the upper end of the mounting bracket. A clamp is provided at one end of the switch, and a slot is provided at the upper end of the pull plate to engage with the clamp. A spring is installed between the switch and the mounting bracket, which constantly forces the clamp toward the pull plate. A button is slidably mounted on the mounting bracket, the inner end of which abuts against the other end of the switch. To unlock, the clamp is disengaged from the slot by pressing the button.

[0011] Furthermore, limiting protrusions are symmetrically provided on both sides of the pull plate, and limiting blocks cooperating with the limiting protrusions are provided on the mounting frame, and the limiting blocks are used to limit the lower position of the pull plate.

[0012] Furthermore, a fixing seat is installed at the lower end of the shell, and a straight-line extrusion disk is provided at the lower end of the extrusion seat, and the seal is installed on the extrusion disk; when in use, the extrusion disk moves toward the fixing seat, thereby extruding and deforming the seal.

[0013] Furthermore, the seal includes a first annular portion located on the inner side and a second annular portion located on the outer side, the first annular portion and the second annular portion are connected by an outwardly protruding C-shaped protrusion, and the protruding side of the C-shaped protrusion faces the fixing seat.

[0014] Furthermore, an arc-shaped mounting portion is provided at the lower end of the shell, and the seal is mounted on the arc-shaped mounting portion; a straight-line extrusion disk is provided at the lower end of the extrusion seat, and the extrusion disk is placed in the seal, and the inner wall of the seal is provided with an arc-shaped wall convex toward the inside; when in use, the seal is expanded and deformed by squeezing the arc-shaped wall through the extrusion disk.

[0015] Furthermore, a pull ring is provided on the upper side of the pull plate, and a through groove corresponding to the pull ring is provided on the shell.

[0016] The present invention also provides a cup, comprising the quick-release sealing cup cover and a cup body, wherein the inner wall of the cup opening of the cup body is provided with a contraction portion; when in use, the sealing member is squeezed, expanded, and clamped to the contraction portion to achieve a sealed connection.

[0017] (3) Beneficial effects

[0018] The present invention provides a quick-release sealed cup lid and a cup thereof, wherein an extrusion seat is connected to a pull plate through a lever connector, and the distance between the third hinge point and the first hinge point is greater than the distance between the second hinge point and the first hinge point, thereby realizing a labor-saving lever structure. The extrusion seat is driven by the labor-saving lever structure, and when the pull plate is pulled up, only a small force is needed to drive the extrusion seat to extrude the sealing member and deform it, which saves more effort in operation and is more convenient to use, thereby overcoming the defect that the pull ring of the existing non-threaded cup lid is more labor-intensive to pull. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a quick-release sealed cup cover according to Example 1;

[0020] Figure 2 This is a structural schematic diagram of a quick-release sealed cup cover from another perspective in Example 1;

[0021] Figure 3 This is a cross-sectional view of a quick-release sealed cup lid according to Example 1;

[0022] Figure 4 This is an exploded view of a quick-release sealed cup lid according to Example 1;

[0023] Figure 5 This is a schematic structural diagram of a quick-release sealed cup cover after removing the shell in Example 1;

[0024] Figure 6 A three-dimensional diagram of the connection between a quick-release sealing cup cover pull plate, an extrusion seat and a lever connector according to Example 1;

[0025] Figure 7 This is a three-dimensional diagram of a quick-release sealing cup lid seal according to Example 1;

[0026] Figure 8 This is a three-dimensional diagram of a cup according to Example 1;

[0027] Figure 9 This is a cross-sectional view of a cup according to Example 1;

[0028] Figure 10 This is an exploded view of a quick-release sealed cup lid according to Example 2;

[0029] Figure 11 This is a cross-sectional view of a quick-release sealed cup lid according to Example 2;

[0030] Figure 12 This is a cross-sectional view of a cup according to Example 2;

[0031] The names of the components corresponding to the various figure marks in the figure are: 1. Shell; 11. Mounting frame; 12. Switch member; 13. Spring; 14. Button; 15. Arc-shaped mounting portion; 16. Through groove; 111. Extension plate; 112. Limit block; 121. Clamp; 2. Pull plate; 201. Clamping groove; 202. Limiting protrusion; 203. Pull ring; 3. Seal; 301. First annular portion; 302. Second annular portion; 303. C-shaped protrusion; 304. Arc-shaped wall; 305. Fixed block; 4. Extrusion seat; 401. Extrusion disk; 5. Lever connector; 501. First waist-shaped groove; 502. Second waist-shaped groove; 6. Fixed seat; 7. Cup body; 701. Contraction portion. DETAILED DESCRIPTION

[0032] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention. Example 1:

[0033] See Figures 1 to 9 This embodiment provides a quick-release sealed cup cover, including a shell 1, a pull plate 2 vertically slidably installed in the shell 1, a seal 3, and an extrusion seat 4 for extruding the seal 3.

[0034] See Figures 3 to 6 The extrusion seat 4 is mounted on the lower side of the pull plate 2. The extrusion seat 4 is connected to the pull plate 2 through a lever connector 5. The lever connector 5 can achieve a labor-saving effect, thereby reducing the force required to pull the pull plate 2 upward, which is more labor-saving. One end of the lever connector 5 is hinged to the mounting bracket 11 of the housing 1 through a first hinge point a. The extrusion seat 4 is connected to the lever connector 5 through a second hinge point b. The pull plate 2 is connected to the other end of the lever connector 5 through a third hinge point c. The first hinge point a, the second hinge point b, and the third hinge point c are each provided with a corresponding hinge column. The distance between the third hinge point c and the first hinge point a is greater than the distance between the second hinge point b and the first hinge point a, that is, the length of ac is greater than ab, thereby realizing a labor-saving lever structure. The lever connector 5 is provided with a first waist-shaped groove 501 for facilitating the movement of the second hinge point b, and a second waist-shaped groove 502 for facilitating the movement of the third hinge point c, to ensure the feasibility of the structure; when in use, the pull plate 2 slides up to drive the lever connector 5 to swing, and then the lever connector 5 drives the extrusion seat 4 to extrude the seal 3, making the operation more labor-saving.

[0035] See Figure 4 and Figure 5In this embodiment, there are two lever connectors 5, which are symmetrically arranged on either side of the pull plate 2. The housing 1 has symmetrically arranged mounting brackets 11 on both sides. The mounting brackets 11 extend toward the lever connectors 5 and are provided with extension plates 111. One end of the lever connector 5 is hinged to the corresponding extension plate 111 via a first hinge point a.

[0036] See Figure 3 and Figure 4 The upper end of the mounting frame 11 is hingedly connected to a switch member 12. A clamping head 121 is provided at one end of the switch member 12. A slot 201 is provided at the upper end of the pull plate 2, which engages with the clamping head 121. The clamping head 121 can be engaged or disengaged from the slot 201 to lock or unlock the pull plate 2. A spring 13 is installed between the switch member 12 and the mounting frame 11. This spring 13 constantly forces the clamping head 121 to move toward the pull plate 2 and serves to reset the clamping head 121. A button 14 is slidably mounted on the mounting frame 11. The inner end of the button 14 abuts against the other end of the switch member 12. To unlock, the clamping head 121 is disengaged from the slot 201 by pressing the button 14.

[0037] See Figure 3 and Figure 4 The pull plate 2 has symmetrically positioned limit protrusions 202 on either side, and the mounting frame 11 is provided with limit blocks 112 that cooperate with the limit protrusions 202 and are used to limit the downward position of the pull plate 2. A pull ring 203 is provided on the upper side of the pull plate 2 for easy finger insertion, and a through slot 16 corresponding to the pull ring 203 is provided on the housing 1 for easy operation.

[0038] See Figures 1 to 3 A fixing seat 6 is installed at the lower end of the shell 1, and a straight-line extrusion disk 401 is provided at the lower end of the extrusion seat 4. The extrusion disk 401 is opposite to the lower end of the fixing seat 6, and the seal 3 is installed on the extrusion disk 401; when in use, the extrusion disk 401 moves toward the fixing seat 6, thereby squeezing and deforming the seal 3.

[0039] See Figure 3 and Figure 7 The seal 3 includes a first annular portion 301 located on the inner side and a second annular portion 302 located on the outer side. The first annular portion 301 and the second annular portion 302 are connected by an outwardly protruding C-shaped protrusion 303, and the protruding side of the C-shaped protrusion 303 faces the fixed seat 6; with this structure of the seal 3, it is easier to deform the seal 3 when the extrusion disk 401 slides up, and the operation is more labor-saving.

[0040] See Figure 8 and Figure 9This embodiment also provides a cup, including the above-mentioned quick-release sealed cup cover and a cup body 7, wherein the inner wall of the cup mouth of the cup body 7 is provided with a contraction portion 701; when in use, the sealing connection is achieved by squeezing the expansion card to receive the contraction portion 701 through the sealing member 3.

[0041] To lock the cup lid, place the quick-release sealed cup lid inside the cup body 7 and pull up the pull plate 2 to swing the lever connector 5. The lever connector 5 drives the extrusion seat 4 to squeeze the seal 3. The seal 3 is squeezed and expanded, clamping the contraction portion 701. Simultaneously, the clamping head 121 engages the clamping slot 201, locking the pull plate 2. To remove the cup lid, press the buttons 14 on both sides simultaneously. The buttons 14 push the switch 12, disengaging the clamping head 121 from the clamping slot 201 and unlocking the pull plate 2. Under the restoring force of the seal 3, the pull plate 2 and the extrusion seat 4 slide downward, and the seal 3 is disengaged from the contraction portion 701. Example 2:

[0042] See Figures 10 to 12 The quick-release sealed cup cover provided in this embodiment is different from that in the first embodiment in that the structure and installation method of the sealing member 3 are different.

[0043] See Figures 10 to 12 In this embodiment, the lower end of the housing 1 is provided with an arcuate mounting portion 15. The seal 3 is cylindrical with an opening at the upper end, and is fitted onto the arcuate mounting portion 15. A fixing block 305 is provided on the inner wall of the seal 3. The fixing block 305 engages with the arcuate mounting portion 15 to prevent the seal 3 from being stretched and stuck when pushed down. The lower end of the extrusion seat 4 is provided with a straight-line extrusion disc 401, which is positioned within the seal 3. The inner wall of the seal 3 is provided with an inwardly convex arcuate wall 304. During use, the extrusion disc 401 compresses the arcuate wall 304, causing the seal 3 to expand and deform.

[0044] See Figure 12 This embodiment also provides a cup, including the above-mentioned quick-release sealed cup cover and a cup body 7, wherein the inner wall of the cup mouth of the cup body 7 is provided with a contraction portion 701; when in use, the sealing connection is achieved by squeezing the expansion card to receive the contraction portion 701 through the sealing member 3.

[0045] The present invention provides a quick-release sealed cup lid and a cup thereof, wherein an extrusion seat is connected to a pull plate through a lever connector, and the distance between the third hinge point and the first hinge point is greater than the distance between the second hinge point and the first hinge point, thereby realizing a labor-saving lever structure. The extrusion seat is driven by the labor-saving lever structure, and when the pull plate is pulled up, only a small force is needed to drive the extrusion seat to extrude the sealing member and deform it, which saves more effort in operation and is more convenient to use, thereby overcoming the defect that the pull ring of the existing non-threaded cup lid is more labor-intensive to pull.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A quick-release sealed cup cover, comprising a housing (1), a pull plate (2) slidably mounted in the housing (1), a sealing member (3), and an extrusion seat (4) for extruding the sealing member (3), characterized in that: The extrusion seat (4) is sleeved on the lower side of the pull plate (2) and is driven and connected to the pull plate (2) through a lever connecting member (5); one end of the lever connecting member (5) is hinged to the shell (1) through a first hinge point (a), the extrusion seat (4) is connected to the lever connecting member (5) through a second hinge point (b), and the pull plate (2) is connected to the other end of the lever connecting member (5) through a third hinge point (c), and the distance between the third hinge point (c) and the first hinge point (a) is greater than the distance between the second hinge point (b) and the first hinge point (a); when in use, the pull plate (2) slides up to drive the lever connecting member (5) to swing, thereby driving the extrusion seat (4) to squeeze the sealing member (3).

2. The quick-release sealing cup cover according to claim 1, characterized in that: The lever connecting member (5) is provided with a first waist-shaped groove (501) for facilitating the movement of the second hinge point (b), and a second waist-shaped groove (502) for facilitating the movement of the third hinge point (c).

3. The quick-release sealing cup cover according to claim 1, characterized in that: There are two lever connecting members (5) symmetrically arranged on both sides of the pull plate (2).

4. The quick-release sealing cup cover according to claim 3, characterized in that: The housing (1) has symmetrically arranged mounting frames (11) on both sides, and the mounting frames (11) are provided with extension plates (111) extending toward the lever connecting member (5), and one end of the lever connecting member (5) is hinged to the corresponding extension plate (111) through the first hinge point (a).

5. The quick-release sealing cup cover according to claim 4, characterized in that: The upper end of the mounting frame (11) is hingedly connected to a switch member (12), one end of the switch member (12) is provided with a clamping head (121), and the upper end of the pull plate (2) is provided with a clamping slot (201) that can be engaged with the clamping head (121).

6. The quick-release sealing cup cover according to claim 5, characterized in that: A spring (13) is installed between the switch member (12) and the mounting frame (11), and the spring (13) always causes the clamping head (121) to have a tendency to move toward the pulling plate (2).

7. The quick-release sealing cup cover according to claim 5, characterized in that: A button (14) is slidably mounted on the mounting frame (11), and the inner end of the button (14) abuts against the other end of the switch member (12); when unlocking, the clamping head (121) is disengaged from the clamping slot (201) by pressing the button (14).

8. The quick-release sealing cup cover according to claim 4, characterized in that: Limiting protrusions (202) are symmetrically provided on both sides of the pull plate (2), and a limiting block (112) cooperating with the limiting protrusions (202) is provided on the mounting frame (11), and the limiting block (112) is used to limit the lower position of the pull plate (2).

9. The quick-release sealing cup cover according to claim 1, wherein: A fixing seat (6) is installed at the lower end of the shell (1), a straight-line extrusion disc (401) is provided at the lower end of the extrusion seat (4), and the sealing member (3) is installed on the extrusion disc (401); when in use, the extrusion disc (401) moves toward the fixing seat (6), thereby extruding and deforming the sealing member (3).

10. The quick-release sealing cup cover according to claim 9, characterized in that: The sealing member (3) comprises a first annular portion (301) located on the inner side and a second annular portion (302) located on the outer side, wherein the first annular portion (301) and the second annular portion (302) are connected via an outwardly protruding C-shaped protrusion (303), wherein the protruding side of the C-shaped protrusion (303) faces the fixing seat (6).

11. The quick-release sealing cup cover according to claim 1, characterized in that: The lower end of the housing (1) is provided with an arc-shaped mounting portion (15), and the sealing member (3) is sleeved on the arc-shaped mounting portion (15); the lower end of the extrusion seat (4) is provided with a straight-line extrusion disc (401), and the extrusion disc (401) is placed in the sealing member (3); the inner wall of the sealing member (3) is provided with an arc-shaped wall (304) protruding toward the inside; when in use, the seal (3) is expanded and deformed by squeezing the arc-shaped wall (304) by the squeezing disc (401).

12. The quick-release sealing cup cover according to claim 1, wherein: A pull ring (203) is provided on the upper side of the pull plate (2), and a through groove (16) corresponding to the pull ring (203) is provided on the housing (1).

13. A cup, characterized in that: It comprises a quick-release sealed cup cover as described in any one of claims 1 to 12 and a cup body (7), wherein the inner wall of the cup mouth of the cup body (7) is provided with a contraction portion (701); when in use, the sealing member (3) is squeezed, expanded and clamped to the contraction portion (701) to achieve a sealed connection.

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