A kind of exhaust type safety pot cover

Abstract

The present invention discloses a venting safety kettle cover, comprising a kettle cover arranged at an upper end of a kettle body, the kettle cover comprising a shell, a water outlet arranged on the side of the upper middle part of the shell, a water outlet button arranged at the through hole of the upper end cover plate of the shell, a water blocking plate slidably sleeved on the lower part of a guide rod, the guide rod passes through a concave cavity in the shell and is sealed and slidably matched with the bottom of the concave cavity, the upper end of the guide rod is connected to the water outlet button, a first spring seat is arranged at the upper end of the guide rod, a guide rod reset spring is arranged between the first spring seat and the bottom of the concave cavity, a second spring seat is arranged on the guide rod between the bottom of the concave cavity and the water blocking plate, and a water blocking plate reset spring is arranged between the second spring seat and the water blocking plate. The venting safety kettle cover of the present invention can first release the pressure in the kettle body and then discharge water, thereby avoiding the situation where the steam in the kettle is mixed with boiling water and sprayed from the water outlet, and eliminating the safety hazard of being scalded by steam.

Description

Technical Field

[0001] The invention relates to a kettle cover, in particular to a kettle cover for releasing water by pressing. Background Art

[0002] At present, the kettle lid that presses to release water, such as the "A Removable Insulated Kettle Lid" with patent number ZL201920837276.3, has major defects: 1. Many people are accustomed to picking up the kettle, tilting the kettle and aiming the kettle mouth at the cup before pressing the water button. At this time, the steam in the kettle mixed with boiling water is easy to spray out, posing a safety hazard of scalding by steam; 2. When pouring water, you have to press the water button at the same time. For heavier and larger-capacity kettles, since the water button is usually set on the top of the lid, it is not conducive to consumers' use from the perspective of mechanics and ergonomics, and it is laborious and easy to get tired. Summary of the invention

[0003] The purpose of the present invention is to provide a venting safety kettle cover, which can first release the pressure in the kettle body and then discharge water, thereby preventing the steam in the kettle from being mixed with boiling water and spraying out from the water outlet, thereby eliminating the safety hazard of being scalded by steam.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A venting safety kettle cover comprises a kettle cover arranged at an upper end of a kettle body, the kettle cover comprises a shell, a water outlet arranged on the side of the upper middle part of the shell, a water outlet button arranged at a through hole of a cover plate on the upper end of the shell, a water blocking plate is arranged at the lower end of the shell, the water blocking plate is slidably sleeved on the lower part of a guide rod, the guide rod passes through a concave cavity in the shell and is sealed and slidably matched with the bottom of the concave cavity, the upper end of the guide rod is connected to the water outlet button, a first spring seat is arranged at the upper end of the guide rod, a guide rod reset spring is arranged between the first spring seat and the bottom of the concave cavity, a second spring seat is arranged on the guide rod between the bottom of the concave cavity and the water blocking plate, and a water blocking plate reset spring is arranged between the second spring seat and the water blocking plate.

[0006] In the initial state, under the elastic force of the water blocking plate return spring, the airway seal at the bottom of the guide rod is sealed at the lower end of the hole in the water blocking plate; under the elastic force of the guide rod return spring, the water blocking seal at the periphery of the water blocking plate is sealed at the lower port;

[0007] When the water outlet button is pressed, the water outlet button transmits force to the guide rod, and the guide rod overcomes the elastic force of the guide rod reset spring and moves downward. When the air pressure in the kettle body is high, the air pressure acts upward on the bottom surface of the water blocking plate, and the water blocking plate overcomes the elastic force of the water blocking plate reset spring and seals at the lower port to prevent water from flowing out. The gas in the kettle body is released from the water outlet through the gap between the hole in the water blocking plate and the guide rod. When the air pressure in the kettle body becomes lower, the water blocking plate moves downward to open the lower port under the elastic force of the water blocking plate reset spring; when the air pressure in the kettle body is low, the water blocking plate moves downward with the guide rod to open the lower port.

[0008] An air inlet for taking in air when discharging water is also provided on the side surface of the upper middle part of the shell, and the air inlet is connected to the atmosphere through a gap at the joint between the upper port of the kettle body and the kettle cover.

[0009] A telescopic positioning mechanism is provided between the upper part of the guide rod and the water outlet button. When the water outlet button is pressed for the first time, the telescopic positioning mechanism is actuated to position the guide rod at the lower limit position of the downward movement. When the water outlet button is pressed for the second time, the telescopic positioning mechanism is actuated, and the guide rod is reset under the action of the guide rod reset spring. When the water outlet button is pressed for the third time, the action of the first pressing is repeated. When the water outlet button is pressed for the fourth time, the action of the second pressing is repeated, and this cycle is repeated.

[0010] The telescopic positioning mechanism comprises an upper ratchet, a lower ratchet and a jump gear.

[0011] The jumping gear is fixed on the upper end of the guide rod. In the initial state, multiple jumping teeth at the lower part thereof are slidably matched with the corresponding guide grooves of the lower ratchet and are located on the lower ratchet limiting platform. In the pressed state, the jumping teeth are disengaged from the guide grooves and locked on the lower ratchet limiting teeth.

[0012] Compared with the prior art, the present invention has the following beneficial effects: due to the adoption of the above technical scheme, the water blocking plate is slidably sleeved on the lower part of the guide rod, the guide rod passes through the concave cavity in the shell body and is sealed and slidably matched with the bottom of the concave cavity, the upper end of the guide rod is connected to the water outlet button, a first spring seat is provided on the upper end of the guide rod, a guide rod reset spring is provided between the first spring seat and the bottom of the concave cavity, a second spring seat is provided on the guide rod between the bottom of the concave cavity and the water blocking plate, and a water blocking plate reset spring is provided between the second spring seat and the water blocking plate. According to the structural design of this technical scheme, pressing the water outlet button can first exhaust air and instantly release the pressure in the kettle body. The water outlet can only discharge water after the pressure in the kettle body is reduced, which avoids the situation where steam in the kettle is mixed with boiling water and sprayed out from the water outlet, and the hot water steam will not be discharged from the water outlet button position, eliminating the safety hazard of being scalded by steam; the water outlet button is designed above the kettle cover, which can guide the user to pour water according to the correct steps, forcing the user to press the water outlet button first, and the kettle cover instantly completes the exhaust before taking the kettle to pour water, which is safer and more reliable. When the air pressure in the kettle is relatively high, even if the user tilts the kettle body first and then presses the water outlet button, there will be no danger of steam mixed with boiling water spraying out, because the air pressure acts upward on the bottom surface of the water blocking plate, and the water blocking plate overcomes the elastic force of the water blocking plate return spring and seals at the lower port to prevent water from flowing out. The steam, boiling water, or air-water mixture with relatively high pressure in the kettle body can only flow to the water outlet through the gap between the hole in the water blocking plate and the guide rod, and this gap can greatly increase the flow resistance and reduce the flow rate, which can also eliminate the safety hazard of being scalded by steam.

[0013] A further beneficial effect is that a telescopic positioning mechanism is provided between the upper part of the guide rod and the water outlet button, so that there is no need to keep pressing the water outlet button when pouring water. From the perspective of mechanics and ergonomics, it is convenient for consumers to use and is not prone to fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 yes Figure 1 Sectional view of the middle pot lid;

[0016] Figure 3 yes Figure 2 Schematic diagram of the exhaust state of the middle pot cover;

[0017] Figure 4 2 is a schematic diagram of the water discharge state when the kettle cover is installed on the kettle body;

[0018] Figure 5 yes Figure 1 Schematic diagram of the matching structure between the middle and lower ratchet and the jump gear;

[0019] Figure 6 yes Figure 1Schematic diagram of the coordination structure of the upper ratchet, lower ratchet and jump gear when the water outlet button is not pressed;

[0020] Figure 7 yes Figure 1 Schematic diagram of the coordination structure of the upper ratchet, lower ratchet and jump gear when the water outlet button is pressed. DETAILED DESCRIPTION

[0021] In order to make the technical solution of the present invention clearer, the following Figures 1 to 7 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.

[0022] The present invention discloses a venting safety kettle cover, comprising a kettle cover 2 arranged at an upper end of a kettle body 1, the kettle cover 2 comprising a shell 2-1, a water outlet 2-5 arranged on the side of the upper middle part of the shell 2-1, a water outlet button 2-3 arranged at a through hole of a cover plate 2-2 on the upper end of the shell 2-1, a water blocking plate 3 arranged at the lower end of the shell 2-1, the water blocking plate 3 is slidably sleeved on the lower part of a guide rod 4, the guide rod 4 penetrates into a concave cavity in the shell 2-1 and is sealed and slidably sealed with a bottom 2-4 of the concave cavity through an air-water sealing ring 12 The air-water sealing ring 12 is dynamically matched, and the setting of the air-water sealing ring 12 can prevent steam and boiling water from flowing to the water outlet button 2-3, avoiding the risk of scalding; the upper end of the guide rod 4 is connected to the water outlet button 2-3, and a first spring seat 4-1 is provided at the upper end of the guide rod 4, and a guide rod reset spring 5 is provided between the first spring seat 4-1 and the bottom of the cavity 2-4, and a second spring seat 4-2 is provided on the guide rod 4 between the bottom of the cavity 2-4 and the water blocking plate 3, and a water blocking plate reset spring 6 is provided between the second spring seat 4-2 and the water blocking plate 3.

[0023] In the initial state, under the elastic force of the water blocking plate return spring 6, the airway seal 7 at the bottom of the guide rod 4 is sealed at the lower end of the hole in the water blocking plate; under the elastic force of the guide rod return spring 5, the water blocking seal 8 on the outer periphery of the water blocking plate is sealed at the lower port;

[0024] When the water outlet button 2-3 is pressed, the water outlet button 2-3 transmits force to the guide rod 4, and the guide rod 4 overcomes the elastic force of the guide rod reset spring 5 and moves downward. When the air pressure in the kettle body 1 is relatively high, the air pressure acts upward on the bottom surface of the water blocking plate 3, and the water blocking plate 3 overcomes the elastic force of the water blocking plate reset spring 6 and seals at the lower port to prevent water from flowing out. The gas in the kettle body 1 is released from the water outlet 2-5 through the gap between the middle hole of the water blocking plate and the guide rod 4. When the air pressure in the kettle body 1 becomes smaller, under the elastic force of the water blocking plate reset spring 6, the water blocking plate 3 moves downward to open the lower port; when the air pressure in the kettle body 1 is relatively low, the water blocking plate 3 moves downward with the guide rod 4 to open the lower port.

[0025] Preferably, an air inlet 2-6 for air intake when water is discharged is also provided on the upper side of the shell 2-1, and the air inlet 2-6 is connected to the atmosphere through the gap between the upper end of the kettle body 1 and the kettle cover 2. A telescopic positioning mechanism is provided between the upper part of the guide rod 4 and the water outlet button 2-3. When the water outlet button 2-3 is pressed for the first time, the telescopic positioning mechanism is activated to position the guide rod 4 at the lower limit of downward movement. When the water outlet button 2-3 is pressed for the second time, the telescopic positioning mechanism is activated, and the guide rod 4 is reset under the action of the guide rod reset spring 5. When the water outlet button 2-3 is pressed for the third time, the action of the first pressing is repeated. When the water outlet button 2-3 is pressed for the fourth time, the action of the second pressing is repeated, and so on. The telescopic positioning mechanism is relatively common in the prior art, such as the telescopic positioning mechanism for extending or retracting the pen tip of a signature pen or a ballpoint pen.

[0026] Preferably, the telescopic positioning mechanism comprises an upper ratchet 9, a lower ratchet 10 and a jump gear 11. The jump gear 11 is fixed to the upper end of the guide rod 4. In the initial state, the multiple jump teeth 11-1 at the lower part thereof are slidably matched with the guide groove 10-1 corresponding to the lower ratchet 10 and are located on the lower ratchet limiting platform 10-2. In the pressed state, the jump teeth 11-1 are disengaged from the guide groove 10-1 and locked on the lower ratchet limiting teeth 10-3. The operation process of pressing the water outlet button is as follows:

[0027] After pressing the water outlet button 2-3, the water outlet button 2-3 drives the upper ratchet 9 to move downward, and the upper ratchet 9 drives the jump gear 11 downward and rotates, and its jump tooth 11-1 is locked on the lower ratchet limit tooth 10-3, and the guide rod 4 moves downward at this time. When the air pressure in the kettle body 1 is relatively small, the water blocking plate 3 follows the guide rod 4 to move downward and open the lower port; when the air pressure in the kettle body 1 is relatively large, the air pressure acts upward on the bottom surface of the water blocking plate 3, and the water blocking plate 3 overcomes the elastic force of the water blocking plate reset spring 6 and seals at the lower port to prevent water from flowing out. The gas in the kettle body 1 is released from the water outlet through the gap between the water blocking plate middle hole and the guide rod 4. When the air pressure in the kettle body 1 becomes smaller, under the elastic force of the water blocking plate reset spring 6, the water blocking plate 3 moves downward to open the lower port. After pressing the water outlet button 2-3 again, the jump gear 11 rotates, and its jump tooth enters the guide groove 10-1, and the guide rod 4 moves upward at this time to close the lower port.

Claims

1. A venting safety kettle cover, comprising a kettle cover (2) arranged at an upper end of a kettle body (1), the kettle cover (2) comprising a shell (2-1), a water outlet (2-5) arranged on the side of the upper middle portion of the shell (2-1), a water outlet button (2-3) arranged at a through hole of an upper end cover sheet (2-2) of the shell (2-1), a water blocking plate (3) being arranged at a lower end of the shell (2-1), characterized in that: The water blocking plate (3) is slidably sleeved on the lower part of the guide rod (4); the guide rod (4) passes through the concave cavity in the housing (2-1) and is sealed and slidably matched with the bottom (2-4) of the concave cavity; the upper end of the guide rod (4) is connected to the water outlet button (2-3); a first spring seat (4-1) is provided at the upper end of the guide rod (4); a guide rod reset spring (5) is provided between the first spring seat (4-1) and the bottom (2-4) of the concave cavity; a second spring seat (4-2) is provided on the guide rod (4) between the bottom (2-4) of the concave cavity and the water blocking plate (3); a water blocking plate reset spring (6) is provided between the second spring seat (4-2) and the water blocking plate (3); In the initial state, under the elastic force of the water blocking plate return spring (6), the airway seal (7) at the bottom of the guide rod (4) is sealed at the lower end of the hole in the water blocking plate; under the elastic force of the guide rod return spring (5), the water blocking seal (8) at the periphery of the water blocking plate is sealed at the lower port; When the water outlet button (2-3) is pressed, the water outlet button (2-3) transmits force to the guide rod (4), and the guide rod (4) moves downward against the elastic force of the guide rod return spring (5). When the air pressure in the kettle body (1) is relatively high, the air pressure acts upward on the bottom surface of the water blocking plate (3), and the water blocking plate (3) overcomes the elastic force of the water blocking plate return spring (6) and seals at the lower port to prevent water from flowing out. The gas in the kettle body (1) is released from the water outlet (2-5) through the gap between the hole in the water blocking plate and the guide rod (4). When the air pressure in the kettle body (1) decreases, the water blocking plate (3) moves downward against the elastic force of the water blocking plate return spring (6) to open the lower port. When the air pressure in the kettle body (1) is relatively low, the water blocking plate (3) moves downward following the guide rod (4) to open the lower port. An air inlet (2-6) for air intake when water is discharged is also provided on the side of the upper middle part of the housing (2-1); the air inlet (2-6) is connected to the atmosphere through a gap between the upper end of the kettle body (1) and the kettle cover (2); a telescopic positioning mechanism is provided between the upper part of the guide rod (4) and the water discharge button (2-3); when the water discharge button (2-3) is pressed for the first time, the telescopic positioning mechanism is activated to position the guide rod (4) at a downwardly moved lower limit position; when the water discharge button (2-3) is pressed for the second time, the telescopic positioning mechanism is activated, and the guide rod (4) is reset under the action of the guide rod reset spring (5); when the water discharge button (2-3) is pressed for the third time, the action of the first pressing is repeated; when the water discharge button (2-3) is pressed for the fourth time, the action of the second pressing is repeated, and this cycle is repeated.

2. The exhaust safety kettle cover according to claim 1, characterized in that: The telescopic positioning mechanism comprises an upper ratchet (9), a lower ratchet (10) and a jumping gear (11).

3. The exhaust safety pot cover according to claim 2, characterized in that: The jumping gear (11) is fixedly arranged on the upper end of the guide rod (4); in an initial state, a plurality of jumping teeth (11-1) at its lower portion are slidably matched with corresponding guide grooves (10-1) of the lower ratchet (10) and are located on the lower ratchet limiting platform (10-2); in a pressed state, the jumping teeth (11-1) are disengaged from the guide grooves (10-1) and locked on the lower ratchet limiting teeth (10-3).

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