A self-locking liquid outlet cover body with pressure balance transmission

Abstract

The present invention discloses a self-locking liquid outlet cover body with pressure balance transmission, which relates to the opening and closing structure of a liquid container and aims to solve the problems of laborious pressing and easy damage of the structure. The key points of its technical solution are as follows: A self-locking liquid outlet cover body with pressure balance transmission includes a main cover body, the main cover body is provided with a liquid inlet and a liquid outlet nozzle, the main cover body is provided with a valve core, the main cover body is fixed with an upper cover, the upper cover is provided with a telescopic embedding groove, a pressing cover is telescopically embedded in the telescopic embedding groove, and a self-locking assembly is connected between the pressing cover and the valve core; the bottom wall of the telescopic embedding groove is provided with an even number of limiting blocks, and a balance rod is arranged between two opposite limiting blocks. The self-locking liquid outlet cover body with pressure balance transmission of the present invention ensures that the force application directions of the self-locking assembly and the valve core are collinear with the central axes of the two, achieving the technical effect of labor-saving pressing, preventing the pressing cover from tilting upwards, and eliminating the potential wear hazards caused thereby.

Description

Technical Field

[0001] The invention relates to an opening and closing structure of a liquid container, and more particularly to a self-locking liquid outlet cover body with balanced pressure transmission. Background Art

[0002] The push-type cover water outlet structure can be used in liquid containers such as hot water kettles, thermos pots, and thermos cups.

[0003] The Chinese patent announcement with publication number CN208740679U discloses a kettle lid and a kettle, the technical key points of which are: it includes a body, a button assembly and a locking assembly, the button assembly includes a button that can change from a retracted state to a pop-up state and then to a retracted state after being pressed twice in succession, and a rotating body rotatably arranged in the body, when the button is pressed for the first time, the button drives the rotating body to rotate so that the locking assembly switches from the locked state to the released state, and when it is pressed for the second time, the button drives the rotating body to rotate so that the locking assembly switches from the contact locked state to the locked state.

[0004] In the above technical solution, the button is set at the center of the body. Since there is no guarantee that the user will press the center of the button in actual use, when the user presses one side of the button, the other side will be lifted up, which makes pressing difficult and increases the probability of damage. Therefore, a new solution is needed to solve this problem. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a self-locking liquid outlet cover with balanced pressure transmission, ensuring that the force direction of the self-locking component and the valve core is collinear with the central axis of the two, achieving the technical effect of saving pressure, preventing the pressing cover from tilting and eliminating the hidden dangers of wear caused by it.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a self-locking liquid outlet cover body with balanced pressure transmission, comprising a main cover body, the main cover body being provided with a liquid inlet and a liquid outlet nozzle which are interconnected, the main cover body being provided with a valve core for sealing the liquid inlet, the main cover body being fixed with an upper cover, the upper cover being provided with a telescopic embedding groove, a pressing cover being telescopically embedded in the telescopic embedding groove, a self-locking component being provided between the pressing cover and the valve core; the bottom wall of the telescopic embedding groove being provided with an even number of limit blocks, a balance bar being provided between two opposite limit blocks, and the horizontal section of the balance bar being located between the top of the self-locking component and the pressing cover.

[0007] By adopting the above technical solution, when the user needs to open or close the liquid inlet through the valve core, a downward pressure can be applied to any area on the top surface of the pressing cover. The area of the balance rod adjacent to the force application point is first subjected to the pressure, so that the balance rod synchronously swings downward as a whole. Furthermore, the part of the self-locking component pushed by the balance rod away from the force application point moves downward synchronously, achieving the technical effect that the force-bearing area and the non-force-bearing area move downward synchronously. On the one hand, it ensures that the force application direction of the self-locking component and the valve core is collinear with their central axes, effectively preventing the problem of more laborious operation caused by the angular difference between the force application direction and the displacement direction. On the other hand, it effectively prevents the pressing cover from tilting upwards, eliminating the wear hidden danger caused thereby.

[0008] The present invention is further configured as follows: The self-locking component includes a valve core rod, a spring, a cap, a rotating disk, and a spline cover; the valve core rod passes through the main cover body and the center of the upper cover and is fixed to the cap; the spring is a compression spring and is compressed between the cap and the upper cover; the upper cover is provided with a central sleeve, and the rotating disk is self-locked and movably connected to the central sleeve; the spline cover is sleeved on the rotating disk.

[0009] The present invention is further configured as follows: The inner wall of the central sleeve is provided with a plurality of ratchet grooves at equal angles, the rotating disk is provided with ratchet blocks that cooperate with the ratchet grooves, the upper ends of the ratchet blocks have inclined force-bearing surfaces, the spline cover has a plurality of triangular plates arranged at equal angles, and the triangular plates are in abutting cooperation with the inclined force-bearing surfaces.

[0010] The present invention is further configured as follows: The upper end surface of the spline cover is provided with a connection groove for the horizontal section of the balance rod to rotate and be embedded.

[0011] The present invention is further configured as follows: The limiting block is provided with a limiting groove, and the two ends of the balance rod are respectively provided with L-shaped hooks that are hooked into the limiting groove.

[0012] The present invention is further configured as follows: The bottom wall of the telescopic embedding groove is provided with limiting baffles opposite to the L-shaped hooks at both ends of each balance rod.

[0013] The present invention is further configured as follows: The valve core is provided with a sealing rubber ring, and the sealing rubber ring is mated with the lower end surface of the main cover body.

[0014] The present invention is further configured as follows: The inner circumferential wall of the telescopic embedding groove is provided with a stroke hook groove, and the pressing cover is provided with a stroke catch that is slidably hooked and engaged with the stroke hook groove.

[0015] In summary, the present invention has the following beneficial effects: on the one hand, it ensures that the force directions of the self-locking component and the valve core are collinear with their central axes, effectively preventing the problem of increased effort caused by the angular difference between the force direction and the displacement direction. On the other hand, it effectively prevents the pressing cover from tilting, eliminating the potential wear caused thereby; only a single pressure needs to be applied to the pressing cover to control the switching of the valve core between the closed and open states, achieving the effect that the user does not need to maintain pressure during the liquid pouring operation, improving the convenience of use; the central sleeve, the rotating disk, and the spline cover draw on the self-locking structure of a ballpoint pen, having the effect of mature technology and stable function; realizing the mutual restriction between the balance rod and the spline cover, effectively improving the connection stability between the two; realizing the restriction of the balance rod without interfering with its swinging ability, improving the connection stability between the balance rod and the limiting block; realizing the restriction of both ends of the balance rod to eliminate the mobility of the balance rod moving horizontally along the central axis of its horizontal section; filling the gap between the valve core and the lower end face of the main cover body with a sealing rubber ring, effectively improving the sealing performance of the valve core; ensuring the connection stability between it and the telescopic groove without affecting the telescopic ability of the pressing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 is a sectional view of the present application;

[0018] Figure 3 is an exploded view of the present application;

[0019] Figure 4 is an exploded view of the present application from another perspective;

[0020] Figure 5 is a schematic diagram of the structure of the upper cover of the present application;

[0021] Figure 6 is a schematic diagram of the structure of the rotating disk of the present application;

[0022] Figure 7 is a diagram showing the mating relationship between the self-locking component and the upper cover of the present application;

[0023] Figure 8 is a diagram showing the mating relationship between the spline cover and the balance rod of the present application.

[0024] Description of the drawings: 1. Main cover body; 2. Liquid inlet; 3. Liquid outlet nozzle; 4. Valve core; 5. Upper cover; 6. Telescopic groove; 7. Pressing cover; 8. Limit block; 9. Balance rod; 10. Valve core rod; 11. Spring; 12. Cap; 13. Rotating disc; 14. Spline cover; 15. Central sleeve; 16. Ratchet groove; 17. Ratchet block; 18. Inclined force-receiving surface; 19. Triangular plate; 20. Connecting groove; 21. Limit groove; 22. L-shaped hook; 23. Restricting baffle; 24. Sealing rubber ring; 25. Stroke hook groove; 26. Stroke catch hook. Detailed implementation manners

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] A self-locking liquid outlet cover body with pressure balance transmission, as Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, includes a main cover body 1. The main cover body 1 is integrally formed with a liquid inlet 2 and a liquid outlet nozzle 3 that are interconnected. The main cover body 1 is movably connected with a valve core 4 for blocking the liquid inlet 2. The main cover body 1 is clamped and fixed with an upper cover 5. The upper cover 5 is integrally formed with a telescopic groove 6. A pressing cover 7 is telescopically fitted in the telescopic groove 6. A self-locking assembly is connected between the pressing cover 7 and the valve core 4; Even-numbered limit blocks 8 are clamped and fixed on the bottom wall of the telescopic groove 6. A balance rod 9 is swingably connected between two opposite limit blocks 8. The horizontal section of the balance rod 9 is located between the top end of the self-locking assembly and the pressing cover 7.

[0027] When the user needs to open or close the liquid inlet 2 through the valve core 4, a downward pressure can be applied to any area on the top surface of the pressing cover 7. At this time, the area of the balance rod 9 adjacent to the force application point is first subjected to pressure, so that the balance rod 9 swings downward as a whole synchronously. Furthermore, the part of the self-locking assembly away from the force application point is pushed by the balance rod 9 to move downward synchronously, achieving the technical effect that the force application area and the non-force application area move downward synchronously. And, the non-force application area of the pressing cover 7 can slide down along the telescopic groove 6 as a whole due to the loss of the upward thrust of the self-locking assembly. On the one hand, it ensures that the force application direction of the self-locking assembly and the valve core 4 is collinear with their central axes, effectively preventing the problem of more laborious due to the angle difference between the force application direction and the displacement direction. On the other hand, it effectively prevents the pressing cover 7 from tilting, eliminating the wear hidden danger caused thereby.

[0028] The specific structure of the self-locking assembly is as follows, as Figure 3 , Figure 4As shown, the self-locking assembly includes a valve core rod 10, a spring 11, a cap 12, a rotating disk 13 and a spline cover 14; after the valve core rod 10 passes through the center of the main cover body 1 and the upper cover 5, its top end is clamped and fixed with the cap 12; the spring 11 is a compression spring and is compressed between the cap 12 and the upper cover 5; the upper cover 5 is integrally formed with a center sleeve 15, and the rotating disk 13 is self-locking and movably connected to the center sleeve 15; the spline cover 14 is sleeved on the rotating disk 13.

[0029] In the natural static state, the spring 11 releases its elastic potential energy to push against the cover cap 12. After the force is transmitted between the cover cap 12 and the valve core rod 10, the valve core 4 is kept in an upward pulling force, forcing it to be tightly pressed against the lower end surface of the main cover body 1 and block the liquid inlet 2, that is, this state is a closed state; when the user applies a pressing force to the press cover 7, the spline cover 14 moves downward synchronously and pushes the rotating disk 13 to move downward and rotate until the rotating disk 13 cooperates with the center sleeve 15 to complete self-locking. In this state, the rotating disk presses against the cover cap 12, forcing the valve core rod 10 and the cover The cap 12 and the valve core 4 form a whole, which overcomes the elastic force of the spring 11 and maintains a sunken state, that is, the state is the open state; when the user applies a second pressing force to the push cover 7, the rotating disk 13 and the center sleeve 15 are forced to release the self-locking state, so that under the push of the spring 11, the valve core 4 rises and resets to reclose the liquid inlet 2; in summary, it is only necessary to apply pressure to the push cover 7 once to control the valve core 4 to switch between the closed and open states, so that the user does not need to maintain pressure during the pouring of liquid, thereby improving the convenience of use.

[0030] The self-locking process between the center sleeve 15 and the rotating disk 13 is as follows: Figure 3 、 Figure 5 、 Figure 6 As shown, the inner wall of the center sleeve 15 is integrally formed with a plurality of ratchet grooves 16 at equal angles, the rotating disk 13 is integrally formed with a ratchet block 17 that cooperates with the ratchet grooves 16, the upper end of the ratchet block 17 has an inclined force-bearing surface 18, and the spline cover 14 has a plurality of triangular plates 19 integrally formed at equal angles, and the triangular plates 19 are in abutment with the inclined force-bearing surface 18.

[0031] When the spline cover 14 starts to move downward, it pushes the rotating disk 13 to move downward along the central axis of the central sleeve. When each ratchet block 17 of the rotating disk 13 leaves the vertical section of the ratchet groove 16, the triangular plate 19 generates a component force on the inclined force-bearing surface 18, and the component force forces the rotating disk 13 to rotate until each ratchet block 17 of the rotating disk 13 hooks onto the lower section of the ratchet groove 16, and self-locking can be completed; when the spline cover 14 moves downward for the second time, its triangular plate 19 exerts a force on the inclined force-bearing surface 18, thereby forcing the rotating disk 13 to move further downward and rotate until the ratchet block 17 aligns with the vertical section of the next ratchet groove 16. When released, it can push the rotating disk 13 to move upward and reset under the action of the spring 11; in summary, the central sleeve 15, the rotating disk 13, and the spline cover 14 draw on the self-locking structure of a ballpoint pen and have the effect of mature technology and stable function.

[0032] To improve the connection stability between the balance rod 9 and the spline cover 14, as Figure 7 、 Figure 8 shown, a connecting groove 20 for the horizontal section of the balance rod 9 to rotate and embed is integrally formed on the upper end surface of the spline cover 14, thereby realizing the mutual restriction between the balance rod 9 and the spline cover 14 and effectively improving the connection stability between the two.

[0033] The balance rod 9 completes the connection of its end with the limit block 8 in the following way, as Figure 7 、 Figure 8 shown, a limit groove 21 is integrally formed on the limit block 8, and L-shaped hooks 22 that hook into the limit groove 21 are respectively bent and formed at both ends of the balance rod 9, thereby realizing the restriction of the balance rod 9 without interfering with the swinging ability of the balance rod 9 and improving the connection stability between the balance rod 9 and the limit block 8.

[0034] [[ID=…]]For further restricting the balance rod 9, as Figure 7 shown, a limiting baffle 23 is integrally formed on the bottom wall of the telescopic embedding groove 6 opposite to the L-shaped hooks 22 at both ends of each balance rod 9, thereby realizing the restriction of both ends of the balance rod 9 to eliminate the mobility of the balance rod 9 moving horizontally along the central axis of its horizontal section.

[0035] To ensure the sealing tightness of the valve core 4, as Figure 2 、 Figure 3 shown, a sealing rubber ring 24 is fixed on the upper surface of the valve core 4, and the sealing rubber ring 24 is mated with the lower end face of the main cover body 1, thereby filling the gap between the valve core 4 and the lower end face of the main cover body 1 through the sealing rubber ring 24 and effectively improving the sealing tightness of the valve core 4.

[0036] The pressing cover 7 is telescopically installed in the telescopic embedding groove 6 in the following way, as Figure 3 、 Figure 4As shown, a travel hook groove 25 is integrally formed on the inner circumferential wall of the telescopic groove 6, and a travel catch 26 that is slidably hooked and engaged with the travel hook groove 25 is integrally formed on the pressing cover 7; thus, without affecting the telescopic ability of the pressing cover 7, the connection stability between the pressing cover 7 and the telescopic groove 6 is ensured.

[0037] The specific embodiments are only explanations of the present invention and are not limitations thereof. After reading this specification, those skilled in the art can make modifications to the embodiments without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A self-locking liquid outlet cover body that transfers according to pressure balance, including a main cover body (1), the main cover body (1) is provided with a liquid inlet (2) and a liquid outlet nozzle (3) that communicate with each other, the main cover body (1) is provided with a valve core (4) for blocking the liquid inlet (2), and it is characterized in that: The main cover body (1) is fixed with an upper cover (5). The upper cover (5) is provided with a telescopic embedding groove (6). A pressing cover (7) is telescopically embedded in the telescopic embedding groove (6). A self-locking assembly is connected between the pressing cover (7) and the valve core (4). The bottom wall of the telescopic embedding groove (6) is provided with an even number of limiting blocks (8). A balance rod (9) is arranged between two opposite limiting blocks (8). The horizontal section of the balance rod (9) is located between the top end of the self-locking assembly and the pressing cover (7). The self-locking assembly includes a valve core rod (10), a spring (11), a cap (12), a rotating disc (13) and a spline cover (14). The valve core rod (10) passes through the centers of the main cover body (1) and the upper cover (5) and is fixed to the cap (12). The spring (11) is a compression spring and is compressed between the cap (12) and the main cover body (1). The upper cover (5) is provided with a central sleeve (15). The rotating disc (13) is self-locked and movably connected to the central sleeve (15). The spline cover (14) is sleeved on the rotating disc (13). The upper end surface of the spline cover (14) is provided with a connection groove (20) for the horizontal section of the balance rod (9) to rotate and embed into. The limiting block (8) is provided with a limiting groove (21). The two ends of the balance rod (9) are respectively provided with L-shaped hooks (22) that are hooked into the limiting groove (21). The bottom wall of the telescopic embedding groove (6) is provided with limiting baffles (23) opposite to the L-shaped hooks (22) at both ends of each balance rod (9).

2. The self-locking liquid outlet cover body with pressure balance transmission according to claim 1, wherein: The inner wall of the central sleeve (15) is provided with a plurality of ratchet grooves (16) at equal angles. The rotating disc (13) is provided with ratchet blocks (17) that cooperate with the ratchet grooves (16). The upper end of the ratchet block (17) has an inclined stress surface (18). The spline cover (14) is provided with a plurality of triangular plates (19) arranged at equal angles. The triangular plates (19) are in abutting cooperation with the inclined stress surface (18).

3. A self-locking liquid outlet cover body with pressure balance transmission according to claim 1, characterized in that: The valve core (4) is provided with a sealing rubber ring (24). The sealing rubber ring (24) is mated with the lower end face of the main cover body (1).

4. A self-locking liquid outlet cover body with pressure balance transmission according to claim 1, characterized in that: The inner circumferential wall of the telescopic embedding groove (6) is provided with a stroke hook groove (25). The pressing cover (7) is provided with a stroke hook (26) that is slidably hooked and mated with the stroke hook groove (25).

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