Suction cup cover based on elastic self-locking

Abstract

The present invention discloses a cup cover with a suction nozzle based on elastic self-locking, comprising a cover body, a groove body for accommodating a suction nozzle is provided on the top plate of the cover body, the lower end of the suction nozzle is connected to the liquid outlet of the top plate, the upper end of the suction nozzle is connected to the outer port of a rotating sleeve, the rotating sleeve is hinged with an axial hole through a convex shaft 1, an arc surface is provided at the bottom of the groove body, the arc center of the arc surface is located to the upper right of the hole center of the axial hole 1, the line connecting the arc center and the hole center intersects with the arc surface at a critical point, the upper end of the elastic support rod is fixed to the bottom of the cover plate, and the spherical surface of the lower end of the elastic support rod touches the arc surface. The self-locking cup cover based on elasticity of the present invention can prevent normal unhooking due to improper buckling or accidental touching of a button, overcome the safety hazards such as water leakage and scalding, and has a simplified structure and is easy to use.

Description

Technical Field

[0001] The invention relates to a cup cover of a container, in particular to a cup cover of a suction nozzle based on elastic self-locking. Background Art

[0002] Existing containers for holding liquids, such as water cups, are basically composed of a cup body and a cup cover screwed to the mouth of the cup body. There are two main ways to drink water from a water cup:

[0003] One is to unscrew the cup lid and put your lips to the mouth of the cup to drink water.

[0004] Second, there is no need to unscrew the cup cover, and water can be drunk through the suction nozzle set on the cup cover. For example, the "A flip-top suction nozzle cup cover" disclosed in patent number ZL201821274383.1 includes: a cover body 1, a top cover 2, a water outlet 12 is provided in the middle of the cover body 1, the top cover 2 is installed on the upper end of the cover body 1 through a fixing pin 13, a hook 14 is provided on the lower bottom surface of the top cover 2, an elastic rubber band 15 is wound around the hook 14, and the other end of the elastic rubber band 15 is fixed inside the cover body 1 by bypassing the fixing pin 13, a sealing plug 16 is installed on the lower bottom surface of the top cover 2 at the position corresponding to the water outlet 12, a key slot 17 is provided on one side of the cover body 1, a key 18 is installed inside the key slot 17, a reset spring 19 is installed between the key 18 and the inner side of the key slot 17, a buckle 21 is provided on the upper part of the button 18, and a groove 20 corresponding to the buckle 21 is provided on the top cover 2.

[0005] Comparing these two methods, the latter is faster and more convenient, and is especially suitable for children, the elderly and bedridden patients. However, the complicated buckle and switch structure of the suction cup with this structure increases the material cost, processing cost and assembly difficulty, and the buckle structure of the buckle 21 and the groove 20 often fails to buckle properly or accidentally touches the button instead of being unhooked normally, causing safety hazards such as water leakage and scalding. Summary of the invention

[0006] The purpose of the present invention is to provide a self-locking cup cover based on elasticity, which can prevent abnormal unhooking due to improper buckling or accidental button touching, overcome the safety hazards such as water leakage and scalding, and has a simplified structure and is easy to use.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] A cup cover with a nozzle based on elastic self-locking, comprising a cover body connected to the cup mouth of a cup body, a slot body for accommodating the nozzle is provided on the top plate of the cover body, the lower end of the nozzle is connected to the liquid outlet hole of the top plate, the upper end of the nozzle is connected to the outer port of a rotating sleeve sleeved on the upper part of the nozzle, the rotating sleeve is hinged with an axial hole at the top of the middle part of the slot body through convex shafts on the front and rear sides of the left part, a cover plate is provided on the upper left end of the rotating sleeve, the bottom of the slot body is provided with an arc surface extending to the upper left end of the slot body from the left side of the liquid outlet hole, the arc center of the arc surface is located to the upper right of the hole center of the axial hole, the line connecting the arc center and the hole center intersects with the arc surface at a critical point, the upper end of the elastic support rod is fixedly connected to the bottom of the cover plate, and the spherical surface of the lower end of the elastic support rod touches the arc surface;

[0009] The rotating sleeve is pressed in the B direction and rotated around the shaft hole. When the lower end spherical surface passes the critical point and is located on the left side of the critical point, the elastic force of the elastic support rod forms a moment in the B direction, the nozzle bends and closes, and the cover plate and the rotating sleeve are sealed on the upper end of the tank body;

[0010] The rotating sleeve is pushed along direction A to rotate around the axial hole. When the lower end spherical surface passes the critical point and is located on the right side of the critical point, the elastic force of the elastic support rod forms a torque in direction A, the suction nozzle extends, and the cover plate and the rotating sleeve are unscrewed at the upper port.

[0011] The rotating sleeve is hinged with the axial holes 2 on the inclined ears on the front and rear sides of the left end of the pick through the convex shafts 2 on the front and rear sides of the right part. When the suction nozzle is bent and closed, and the cover plate and the rotating sleeve are sealed on the upper end of the slot body, the pick is lifted along the A direction. When the inclined surface 1 at the left end of the inclined ear contacts the inclined surface 2 at the right end of the cover plate, the pick drives the cover plate and the rotating sleeve to rotate around the axial hole 1, the suction nozzle is extended, and the cover plate and the rotating sleeve are unscrewed at the upper end.

[0012] The elastic support rod includes a connecting rod, a spring and a slider. The short end of the connecting rod is bent upward and fixed in a groove on the lower surface of the cover plate by interference fit. The long end of the connecting rod is slidably inserted in the blind hole of the slider. The spring is arranged between the end face of the long end and the bottom of the blind hole.

[0013] The trough body is rectangular and its right end is open, and an annular outer shell is arranged on the periphery of the trough body.

[0014] The right end of the arc surface is provided with a stop rib.

[0015] Compared with the prior art, the present invention has the following beneficial effects: due to the adoption of the above technical solution, a groove body for accommodating a suction nozzle is provided on the top plate of the cover body, and an arc surface is provided at the bottom of the groove body starting from the left side of the liquid outlet and extending toward the upper left end of the groove body, and the arc center of the arc surface is located to the upper right of the hole center of the first shaft hole, and the upper end of the elastic support rod is fixedly connected to the bottom of the cover plate, and the spherical surface of the lower end of the elastic support rod touches the arc surface. For the suction nozzle cup of this structure, when the spherical surface of the lower end of the elastic support rod passes the critical point and is located on the left side of the critical point, the elastic force of the elastic support rod forms a B-direction moment (i.e., a bending and closing moment is generated). The torque of the suction nozzle, the sealing cover plate and the rotating sleeve at the upper end of the slot body is avoided, which avoids the safety hazards of water leakage, scalding, etc. caused by improper fastening or accidental touching of buttons instead of normal unhooking, and also omits the complex buckle and switch structure, reducing material cost, processing cost and assembly difficulty; when the lower end spherical surface passes the critical point and is located on the right side of the critical point, the elastic force of the elastic support rod forms an A-direction torque (that is, it generates a torque to open the suction nozzle, open the cover plate and rotate the sleeve), especially when the suction nozzle itself is not elastic enough, the A-direction torque formed by the elastic support rod helps the suction nozzle to stand upright, which is convenient for users to use.

[0016] A further beneficial effect is that the rotating sleeve is hinged with the axial holes 2 on the inclined ears on the front and rear sides of the left end of the paddle through the convex shafts 2 on the front and rear sides of the right part. When the paddle is used, when the inclined surface 1 on the left end of the inclined ear contacts the inclined surface 2 on the right end of the cover plate, the paddle drives the cover plate and the rotating sleeve to rotate around the axial hole 1, the suction nozzle is extended, and the cover plate and the rotating sleeve are unscrewed at the upper end, which further facilitates the opening of the cover plate and the rotating sleeve. Moreover, when the suction nozzle is opened, the paddle is located at the lower side of the suction nozzle head, which does not affect the use of the suction nozzle. When the lower end spherical surface moves to the critical point, the spring is compressed to the shortest. At this time, the external force is continued to be applied. Through the critical point, the rotating sleeve will be subjected to the rotation torque in the A direction or the B direction under the action of the spring force, which helps the suction nozzle to open and keep it open, or helps the suction nozzle to close and keep it closed. By adjusting the relative position between the arc center and the hole center and the length of the arc surface, the stroke of opening the suction nozzle can be greater than the stroke of closing the suction nozzle, thereby achieving the effect of preventing accidental opening. In addition, when the nozzle is opened, it needs to overcome the elastic force of the elastic support rod, which has a certain damping effect on the nozzle, thereby slowing down the rebound of the nozzle and preventing the liquid remaining in the nozzle from being splashed onto the face and body of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 yes Figure 1 Schematic diagram of the split structure;

[0019] Figure 3 yes Figure 1 The structural diagram of the middle slider;

[0020] Figure 4 yes Figure 1 A schematic diagram of the structure of the middle cover body;

[0021] Figure 5 yes Figure 1 A schematic diagram of the structure of lifting the paddle along direction A in the state;

[0022] Figure 6 yes Figure 5 Schematic diagram of continuing to push the paddle in direction A in the state to drive the rotating sleeve to rotate;

[0023] Figure 7 It is a structural schematic diagram of the rotating sleeve rotating along direction A to the limit position;

[0024] Figure 8 It is a schematic diagram of the elastic support rod rotating to the critical point and the direction of the elastic force on its left and right sides. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the present invention clearer, the following Figures 1 to 8 It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, and are not intended to limit the protection scope of the present invention.

[0026] The present invention is a cup cover with a suction nozzle based on elastic self-locking, comprising a cover body 8 connected to the cup mouth of the cup body, a groove body 8-7 for accommodating a suction nozzle 3 is provided on the top plate 8-6 of the cover body 8, the lower end of the suction nozzle 3 is connected to the liquid outlet 8-4 of the top plate 8-6, the upper end of the suction nozzle 3 is connected to the outer port 2-5 of a rotating sleeve 2 sleeved on the upper part of the suction nozzle 3, the rotating sleeve 2 is hinged with the shaft hole 8-1 at the top end of the middle part of the groove body 8-7 through the convex shaft 2-2 on the front and rear sides of the left part, the cover plate 2-7 is provided on the upper left end of the rotating sleeve 2, the bottom of the groove body 8-7 is provided with an arc surface 8-2 extending to the upper left end of the groove body 8-7 from the left side of the liquid outlet 8-4, the arc center a of the arc surface 8-2 is located above and to the right of the hole center b of the shaft hole 8-1, and the arc center The line connecting a and the center of the hole b intersects the arc surface 8-2 at the critical point c, the upper end of the elastic support rod 567 is fixedly connected to the bottom of the cover plate 2-7, and the lower end spherical surface 7-2 of the elastic support rod 567 touches the arc surface 8-2; the rotating sleeve 2 is pressed along the B direction to rotate around the axial hole 8-1, when the lower end spherical surface 7-2 passes the critical point c and is located on the left side of the critical point c, the elastic force of the elastic support rod 567 forms a moment in the B direction, the suction nozzle 3 is bent and closed, and the cover plate 2-7 and the rotating sleeve 2 are sealed at the upper port of the groove body 8-7; the rotating sleeve 2 is pushed along the A direction to rotate around the axial hole 8-1, when the lower end spherical surface 7-2 passes the critical point c and is located on the right side of the critical point c, the elastic force of the elastic support rod 567 forms a moment in the A direction, the suction nozzle 3 is extended, and the cover plate 2-7 and the rotating sleeve 2 are unscrewed at the upper port.

[0027] As a preferred embodiment, the rotating sleeve 2 is hinged with the axial hole 1-1 on the inclined ear 1-3 on the front and rear sides of the left end of the paddle 1 through the convex shaft 2-1 on the front and rear sides of the right part thereof. When the suction nozzle 3 is bent and closed and the cover plate 2-7 and the rotating sleeve 2 are sealed on the upper port of the groove body 8-7, the paddle 1 is lifted along the A direction. When the inclined surface 1-2 at the left end of the inclined ear 1-3 contacts the inclined surface 2-6 at the right end of the cover plate 2-7, the paddle 1 drives the cover plate 2-7 and the rotating sleeve 2 to rotate around the axial hole 1-1, the suction nozzle 3 is extended, and the cover plate 2-7 and the rotating sleeve 2 are unscrewed at the upper port. The elastic support rod 567 includes a connecting rod 5, a spring 6 and a slider 7. The short end 5-1 of the connecting rod 5 is bent upward and fixed in the groove 2-3 on the lower surface of the cover plate 2-7 by interference fit. The long end 5-2 of the connecting rod 5 is slidably inserted in the blind hole 7-1 of the slider 7. The spring 6 is arranged between the end face of the long end 5-2 and the bottom 7-1-1 of the blind hole 7-1.

[0028] Preferably, the trough body 8-7 is rectangular, with an arc-shaped left end and an open right end. The outer periphery of the trough body 8-7 is provided with an annular shell 4, which can be clamped on the upper end of the cover body 8 by a snap-fit ​​structure, or the top plate 8-6 can be screwed to the screw hole 4-1 of the shell 4 by screws. The gap between the inner wall of the trough body and the cover plate 2-7 and the rotating sleeve is as small as possible, for example, 0.1-0.3 mm, so that the cover plate 2-7 and the rotating sleeve can better cover the upper port of the trough body. A stop rib 8-3 is provided at the right end of the arc surface 8-2 to limit the rightward movement of the slider 7 and prevent it from leaving the arc surface 8-2.

[0029] In the above technical solutions, a sealing ring 9 is provided between the cup mouth and the cover body 8 .

Claims

1. A cup cover with a suction nozzle based on elastic self-locking, comprising a cover body (8) connected to the cup mouth of the cup body, characterized in that: A groove body (8-7) for accommodating a suction nozzle (3) is provided on the top plate (8-6) of the cover body (8); the lower end of the suction nozzle (3) is connected to the liquid outlet hole (8-4) of the top plate (8-6); the upper end of the suction nozzle (3) is connected to the outer port (2-5) of a rotating sleeve (2) sleeved on the upper part of the suction nozzle (3); the rotating sleeve (2) is hingedly connected to an axis hole (8-1) at the top end of the middle part of the groove body (8-7) via a convex shaft (2-2) on the front and rear sides of the left part of the rotating sleeve (2); a cover plate (2-7) is provided at the upper left end of the rotating sleeve (2). The bottom of the trough body (8-7) is provided with an arc surface (8-2) starting from the left side of the liquid outlet (8-4) and extending toward the upper left end of the trough body (8-7); the arc center (a) of the arc surface (8-2) is located to the upper right of the hole center (b) of the axial hole 1 (8-1); the line connecting the arc center (a) and the hole center (b) intersects with the arc surface (8-2) at a critical point (c); the upper end of the elastic support rod (567) is fixedly connected to the bottom of the cover plate (2-7); the lower end spherical surface (7-2) of the elastic support rod (567) contacts the arc surface (8-2); The rotating sleeve (2) is pressed in the B direction to rotate around the axial hole (8-1). When the lower end spherical surface (7-2) passes the critical point (c) and is located on the left side of the critical point (c), the elastic force of the elastic support rod (567) forms a moment in the B direction, the suction nozzle (3) is bent and closed, and the cover plate (2-7) and the rotating sleeve (2) are sealed on the upper end of the groove body (8-7); The rotating sleeve (2) is pushed in the direction A to rotate around the shaft hole 1 (8-1). When the lower end spherical surface (7-2) passes the critical point (c) and is located on the right side of the critical point (c), the elastic force of the elastic support rod (567) forms a torque in the direction A, the suction nozzle (3) is extended, the cover plate (2-7) and the rotating sleeve (2) are unscrewed at the upper end, and the rotating sleeve (2) passes through the convex shaft 2 (2-1) on the front and rear sides of the right part of the rotating sleeve (2) and the shaft hole 2 (1-3) on the inclined support ears (1-3) on the front and rear sides of the left end of the pick (1). 1) is hinged, when the suction nozzle (3) is bent and closed, and the cover plate (2-7) and the rotating sleeve (2) are sealed on the upper end of the groove body (8-7), the paddle (1) is lifted along the A direction, and when the inclined surface 1 (1-2) at the left end of the inclined ear (1-3) contacts the inclined surface 2 (2-6) at the right end of the cover plate (2-7), the paddle (1) drives the cover plate (2-7) and the rotating sleeve (2) to rotate around the shaft hole 1 (8-1), the suction nozzle (3) is extended, and the cover plate (2-7) and the rotating sleeve (2) are rotated open at the upper end.

2. The cup cover with a nozzle based on elastic self-locking according to claim 1 is characterized in that: The elastic support rod (567) comprises a connecting rod (5), a spring (6) and a slider (7); the short end (5-1) of the connecting rod (5) is bent upward and fixed in a groove (2-3) on the lower surface of the cover plate (2-7) by interference fit; the long end (5-2) of the connecting rod (5) is slidably inserted in a blind hole (7-1) of the slider (7); and the spring (6) is arranged between an end surface of the long end (5-2) and a bottom (7-1-1) of the blind hole (7-1).

3. The cup cover with a nozzle based on elastic self-locking according to claim 1 or 2, characterized in that: The trough body (8-7) is rectangular and the right end of the trough body (8-7) is open. The outer periphery of the trough body (8-7) is provided with an annular outer shell (4).

4. The cup cover with a nozzle based on elastic self-locking according to claim 3 is characterized in that: A stop convex rib (8-3) is provided at the right end of the arc surface (8-2).

Images