A delayed ejection structure for a water tank box

Abstract

This invention relates to a delayed ejection structure for a water tank, comprising a top plate and a water tank assembly. The water tank assembly includes at least an outer shell and a water container. A limiting protrusion is provided on the top plate near the outer edge of the water tank assembly. A first limiting structure is provided on the rear part of the outer wall of the water tank assembly, which, when the water tank assembly is in its forward-positioned state, cooperates with the limiting protrusion to restrict the water tank assembly from moving backward. An ejection mechanism is provided on the water tank assembly, which, when the first limiting structure and the limiting protrusion are in the limiting state, ejects the water container from the outer shell. This ejection mechanism is connected to both the outer shell and the water container. When the first limiting structure and the limiting protrusion are in the limiting state, the ejection mechanism drives the water container to gradually move out of the outer shell. This process is manifested as the water tank assembly moving forward to its locked state and then delaying for one to two seconds before the water container gradually moves out of the outer shell, providing a better user experience and facilitating the removal and placement of the water container.

Description

Technical Field

[0001] The invention relates to the technical field of cooking appliances such as steamers and ovens, in particular to a delayed ejection structure of a water tank box of a cooking appliance with a steaming function. Background Art

[0002] As people's quality of life continues to improve, kitchen appliances are becoming more and more abundant, and microwave ovens, ovens, steamers, etc. have gradually become essential kitchen appliances for family life. These kitchen appliances not only have relatively single functions, but each product requires a certain amount of kitchen space, and the cost of purchasing them separately is high. In order to effectively utilize kitchen space and reduce purchase costs, currently, the prior art has disclosed an all-in-one machine that integrates the functions of a steamer with a microwave oven and / or an oven.

[0003] For example, the "Microwave Steamer and Oven" disclosed in the Chinese patent with patent number 201320074461.4 (authorization announcement number CN 203168920 U) includes a body, a door frame and a controller installed on the front of the body, a cavity in the body, a transformer installed on the top of the body, a capacitor connected to the transformer, a magnetron connected to the capacitor, and a waveguide box connected to the magnetron, microwaves are transmitted into the cavity through the waveguide box, a microwave agitator is arranged at the microwave inlet in the cavity, a low-speed motor is connected to the microwave agitator, a water container and a steam generator connected to the water container are installed on the side wall of the body, the steam generator is communicated with the cavity in the body, a heating tube is arranged on the top of the cavity in the body, and the heating tube is connected to the controller. For example, the Chinese patent application with application number 201510457051.1 (application publication number CN 105011740 A) discloses a steam oven and microwave oven integrated with a steam inlet on the cooking chamber, which is connected to the steam outlet of the steam generating device. Another example is the Chinese patent with patent number 201410167732.X (authorization announcement number CN 103976641 B) discloses a steam oven with a water tank on top, in which the steam outlet on the top of the evaporator of the steam oven is connected to the steam inlet on the back of the inner pot, and the steam is generated from the evaporator and enters the inner pot.

[0004] In the prior art, whether the steamer is combined with one or both of the functions of a microwave oven and an oven, a water tank needs to be placed in the appliance to provide high-temperature steam for the cooking space. In particular, in embedded cooking appliances, the water tank is often placed on the top of the cooking cavity, and an openable panel is provided on the front side of the cooking appliance to cover the water tank. When taking out the water tank, the panel needs to be removed first, the water tank needs to be moved to the top edge of the cooking cavity, and then the water box in the water tank needs to be pulled out. Regardless of whether the panel is flipped forward, flipped sideways, or moved in other ways, it will be inconvenient to take out and put the water tank box in the water tank due to the visual obstruction of the panel. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a delayed ejection structure of a water tank box which can eject the water tank box from the water tank assembly after the water tank assembly is moved out of place as a whole, in response to the current status of the prior art. The structure can delay the ejection of the water tank box after the water tank assembly is moved out of place as a whole, thereby providing convenience for users.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a delayed ejection structure of a water tank box, comprising a top plate and a water tank assembly arranged on the top plate and capable of moving forward and backward, the water tank assembly at least comprising an outer shell and a water box, the outer shell having a first inner cavity capable of placing the water box, a first opening for the water box to be moved out is provided on the front side of the first inner cavity, and the characteristics are:

[0007] The top plate is provided with a limiting protrusion arranged near the outer edge of the water tank assembly, and the rear part of the outer side wall of the water tank assembly is provided with a first limiting structure that can cooperate with the limiting protrusion when the water tank assembly moves forward into position, thereby limiting the backward movement of the water tank assembly;

[0008] The water tank assembly is provided with a push-out mechanism which can push the water box out from the first opening of the outer shell when the first limiting structure cooperates with the limiting protrusion. The push-out mechanism is connected to the outer shell and the water box respectively.

[0009] In the above solution, the first limiting structure includes

[0010] A limiting column is movably disposed on the outer wall of the outer shell, and a front side surface of the lower end of the limiting column is formed with a first inclined surface which gradually tilts backward from top to bottom;

[0011] A third elastic member enables the limit column to always maintain a downward movement trend;

[0012] A shift fork is rotatably disposed on the outer side wall of the outer shell, wherein a first end of the shift fork is connected to the limit post, and a second end of the shift fork is a rotation free end; and

[0013] The rotating arm is rotatably arranged on the outer side wall of the outer shell and is located above the shift fork. The lower end of the rotating arm has a pressing portion that can contact with at least the second end of the shift fork.

[0014] With the above structure, when the water tank assembly moves forward, the first inclined surface at the lower end of the limiting column can cooperate with the top of the limiting protrusion to slide and cause the third elastic member to contract and the limiting column to move upward. When the lower end of the limiting column bypasses the limiting protrusion from back to front, the rear side wall of the lower end of the limiting column abuts against the front side wall of the limiting protrusion, thereby limiting the position of the water tank assembly and preventing the water tank assembly from moving backward. When the water tank assembly moves backward when necessary, the rotating arm is rotated, and the pressing part of the rotating arm presses the shift fork to rotate and drive the limiting column to move upward to overcome the elastic force of the third elastic member, and the lower end of the limiting column is disengaged from the limiting protrusion, and the water tank assembly can move backward.

[0015] To facilitate assembly, an internally hollow mounting box is provided on the outer side wall of the outer shell, the limiting column is movably arranged in the mounting box up and down, the third elastic member is a spring arranged on the mounting box and located above the limiting column, a lower port is provided at the lower end of the mounting box for the lower end of the limiting column to extend out, a protrusion extending in the direction of the shift fork is formed on the side wall of the limiting column, and correspondingly, an opening is provided on the side wall of the mounting box for the first end of the shift fork to extend into and hang on the lower surface of the protrusion.

[0016] Preferably, the first end of the shift fork is formed with a hook portion that can cooperate with the lower surface of the protruding portion, and the second end of the shift fork is formed as a toggle portion that gradually tilts upward and backward and gradually decreases in width in the up-down direction, and the pressing portion at the lower end of the rotating arm cooperates with the toggle portion to press. Further preferably, the upper surface of the toggle portion is formed with a second inclined surface gradually upward from the middle to the back, the rear lower surface of the pressing portion cooperates with the second inclined surface to press, and the front lower surface of the pressing portion cooperates with the upper surface of the mounting box to press. Still further preferably, the lower part of the rotating arm is connected to the outer shell through a first rotating shaft, and the pressing portion is formed as an arc structure arranged around the first rotating shaft, and the lower surface of the front part of the pressing portion and the lower surface of the rear part of the pressing portion are arranged at an obtuse angle and are both located below the first rotating shaft. The above structure can make the cooperation between the shift fork and the rotating arm compact and stable. Symmetrical limiting protrusions and first limiting structures can be respectively provided on two oppositely arranged outer side walls of the water tank assembly, and the upper ends of the rotating arms of the two first limiting structures can be connected to a cross bar for easy operation.

[0017] Preferably, the outer side wall of the water tank assembly is further provided with a second limiting structure which is located in front of the first limiting structure and can cooperate with the limiting protrusion when the water tank assembly moves backward into position, thereby limiting the forward movement of the water tank assembly.

[0018] The second limiting structure includes a body arranged on the outer side wall of the outer shell, the rear side wall of the body is provided with an extension plate extending backward, the end of the extension plate is bent obliquely forward and downward to form a first inclined portion, the lower end of the first inclined portion is extended forward and upward to form a second inclined portion, and the rear side wall of the body is also provided with an extension block extending backward and located below the extension plate, the extension block is located at the front side of the second inclined portion and forms a limiting opening between the second inclined portion for the limiting protrusion to be inserted into. When the water tank assembly moves backward into position, the limiting protrusion is located in the limiting opening, thereby preventing the water tank assembly from moving backward; when the water tank assembly moves forward, the limiting protrusion can gradually disengage from the limiting opening through the second inclined portion and the first inclined portion, without affecting the forward movement of the water tank assembly.

[0019] In the above schemes, the upper surface of the top plate and the lower surface of the outer shell are correspondingly provided with slide rail assemblies that enable the water tank assembly to move forward and backward.

[0020] The ejection mechanism comprises

[0021] An inner shell body is disposed in the first inner cavity of the outer shell body so as to be movable forward and backward through the first opening, and the inner shell body has a second inner cavity for accommodating a water box;

[0022] An elastic mechanism, connected to the inner shell and the outer shell and enabling the inner shell to always maintain a tendency to move outward relative to the outer shell;

[0023] A locking structure, used for locking the state of the elastic mechanism when the inner shell is completely hidden in the outer shell; and

[0024] The trigger member is arranged below the locking structure and is used to release the locking state of the locking structure.

[0025] For the convenience of connection, the middle part of the inner shell has a mounting cavity extending forward and backward, the elastic mechanism is arranged in the mounting cavity, and the front end of the elastic mechanism is connected to the inner shell, and the rear end of the elastic mechanism is connected to the outer shell.

[0026] The locking structure includes

[0027] A mounting seat is arranged in the mounting cavity and extends along the front-rear direction of the mounting cavity, a slide groove arranged along the length direction is opened on the rear side of the mounting seat, and the rear end of the slide groove is bent downward to form a limiting area;

[0028] A locking member is slidably disposed in the slide slot, wherein when the rear portion of the locking member corresponds to a non-limiting zone of the slide slot, the elastic mechanism is in a working state, and when the rear portion of the locking member corresponds to a limiting zone of the slide slot, the elastic mechanism is in a locked state; and

[0029] The elastic member is connected to the locking member and enables the locking member to always maintain a tendency to move downward relative to the sliding groove.

[0030] With the above structure, when the rear part of the locking member corresponds to the horizontal section of the slide groove, that is, the non-limiting area, the locking structure is in an unlocked state, and the elastic mechanism can drive the inner shell to move forward relative to the outer shell, thereby bringing the water box out of the outer shell; when the inner shell is manually pushed into the outer shell and the rear part of the locking member corresponds to the limiting area of ​​the slide groove, the elastic member pulls the locking member downward and limits it in the limiting area, locking the elastic mechanism to prevent the inner shell from driving the water box forward in a non-set state.

[0031] To facilitate connection, the rear side of the locking piece has a first limiting portion formed in the shape of a hook, and correspondingly, the middle part of the locking piece extends upward to form a second limiting portion, the top of the mounting cavity has a limiting column extending downward, and a clamping groove is formed between the first limiting portion and the second limiting portion, which can clamp the limiting column so that the locking piece and the inner shell body maintain synchronous movement in the front and rear directions.

[0032] Preferably, the middle part of the locking member is provided with a first axial hole for the first elastic member to pass through, the lower part of the first limiting portion is provided with a second axial hole for the second elastic member to pass through, the first elastic member passes through the first axial hole to movably connect the middle part of the locking member to the slide slot, the second elastic member passes through the second axial hole to movably connect the rear part of the locking member to the slide slot, when the second elastic member is located in the non-limiting area of ​​the slide slot, the elastic mechanism is in a working state, when the second elastic member is located in the limiting area of ​​the slide slot, the elastic mechanism is in a locked state. This structure facilitates the locking and unlocking process of the locking member.

[0033] To facilitate assembly, a connecting plate that can link the first elastic member and the second elastic member is provided on one side of the mounting seat, and a first through hole aligned with the first axial hole is opened at the front of the connecting plate, and the middle part of the first elastic member passes through the first through hole and the slide slot arrangement, and the end of the first elastic member is bent backward and moved closer to the second elastic member; a second through hole aligned with the second axial hole and located below the first through hole is opened at the rear of the connecting plate, and the upper part of the second elastic member passes through the second through hole and the slide slot arrangement, and a trigger part extending downward is formed at the lower part of the second elastic member. When the trigger part is pushed backward, the second elastic member drives the second axial hole to disengage from the slide slot limiting area and move upward to the slide slot non-limiting area.

[0034] In order to facilitate connection, a limiting notch is opened on the front side wall of the sliding groove limiting area, and correspondingly, a sleeve is formed at the end of the second axial hole which can be clamped in the limiting notch to limit the locking state of the locking piece.

[0035] In the above schemes, the rear end of the mounting seat is connected to the outer shell, the front end of the mounting seat is connected to the inner shell, and the elastic mechanism is arranged at the front part of the mounting seat and the rear end is connected to the locking member.

[0036] Preferably, the elastic mechanism is a damper capable of keeping the piston rod in a contracted state relative to the elastic mechanism body at all times, and the piston rod of the damper is connected to the front portion of the locking member.

[0037] In order to facilitate connection, the front portion of the locking member has a connecting hook extending forward from the front side of the second limiting portion, and the connecting hook is connected to the piston rod of the damper.

[0038] Preferably, the rear part of the mounting seat is provided with a stopper extending from the top downward in the front-to-back direction and used to accommodate the locking member, the slide groove is provided on the side wall of the mounting seat and communicates with the mounting groove, and the front part of the locking member is provided with a third limiting portion located below the connecting hook and extending downward, and correspondingly, the mounting groove is through-through and a stopper is formed at the bottom that can be engaged with the third limiting portion to prevent the locking member from moving backward laterally. This structure cleverly prevents the locking member from continuing to move backward laterally when the second shaft hole of the locking member corresponds to the limiting zone. At this time, if the person continues to apply a backward force to the inner shell, the second shaft hole and the second elastic member can be easily pushed downward along the limiting zone, thereby limiting the locking member.

[0039] In order to facilitate connection, the front end of the installation cavity is provided with a first assembly plate connected to the inner shell, the rear end of the installation cavity is provided with a second assembly plate connected to the outer shell, the front end of the installation seat is rotatably connected to the rear side wall of the first assembly plate, and the rear end of the installation seat is rotatably connected to the front side wall of the second assembly plate. The side wall of the installation cavity is provided with a bayonet arranged near the rear end, and correspondingly, the third assembly plate is provided at the upper rear part of the installation cavity and has a buckle corresponding to the bayonet, and the limiting column is provided on the lower surface of the third assembly plate.

[0040] Preferably, the trigger member has a protrusion that can push the trigger portion of the second elastic member backward when the outer shell moves forward. With this structure, it is easy to generate a backward pushing force on the trigger portion at the lower end of the second elastic member to cancel the locking state of the locking member, release the elastic mechanism, and realize that the inner shell drives the water box to move forward.

[0041] Compared with the prior art, the advantages of the present invention are: a first limiting structure is provided on the outer wall of the water tank assembly of the present invention, which can cooperate with the limiting protrusion on the top plate to limit the backward movement of the water tank assembly. When the first limiting structure and the limiting protrusion are in the limiting state, the ejection mechanism drives the water box to gradually move out of the outer shell. This process is reflected in that the water tank assembly moves forward to a locked state and after a delay of one to two seconds, the water box gradually moves out of the outer shell. The process of the water tank assembly moving forward relative to the top plate and the water box moving outward from the outer shell is carried out in an orderly manner, which not only gives consumers a better experience, but also provides convenience for taking and placing the water box. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the installation structure of the cooking appliance in an embodiment of the present invention;

[0043] Figure 2 It is a structural schematic diagram of an embodiment of the present invention;

[0044] Figure 3 for Figure 2 A partial cross-sectional view of

[0045] Figure 4 It is a structural schematic diagram of a shift fork in an embodiment of the present invention;

[0046] Figure 5 It is a schematic diagram of the structure of the rotating arm in an embodiment of the present invention;

[0047] Figure 6 is a schematic diagram of a second limiting structure in an embodiment of the present invention;

[0048] Figure 7 is a partial cross-sectional view of a cooking appliance according to an embodiment of the present invention;

[0049] Figure 8 for Figure 7 A partial structural diagram of

[0050] Fig. 9 It is a schematic structural diagram of the assembly relationship between the elastic mechanism and the locking structure in an embodiment of the present invention;

[0051] Fig.10 It is a structural schematic diagram of a locking member in an embodiment of the present invention;

[0052] Fig.11 It is a schematic diagram of the structure of the trigger member in the embodiment of the present invention;

[0053] Fig.12 It is a structural schematic diagram of a water tank assembly in an embodiment of the present invention;

[0054] Fig.13 It is a structural schematic diagram of a mounting base in an embodiment of the present invention;

[0055] Fig.14 Schematic diagram of the structure of a cooking appliance in an embodiment of the present invention. DETAILED DESCRIPTION

[0056] The present invention is further described in detail below with reference to the accompanying drawings.

[0057] like Figures 1 to 14 As shown, the delayed ejection structure of the water tank box of this embodiment can be applied to cooking appliances such as ovens, steam ovens, integrated steam ovens, integrated steam ovens, integrated steam ovens and microwave ovens, and integrated steam ovens and microwave ovens. The top of the cooking appliance 10 has a top plate 1, which is a part of the cooking appliance 10 and constitutes the top wall of the cooking appliance 10. An accommodating space 100 is formed between the top plate 1 and the upper wall surface of the installation space 20 of the cooking appliance 10. The water tank assembly b of the cooking appliance 10 is arranged in the accommodating space 100. The front port 101 in the accommodating space 100 can be provided with a panel c that can cover or open the front port 101 of the accommodating space 100, and the panel c can be moved away by a corresponding driving mechanism.

[0058] The delayed ejection structure of the water tank box of this embodiment includes the top plate 1 and the water tank assembly b. The water tank assembly b can be as follows Figure 2 There is a handle as shown, but it can also be Fig.12 As shown, there are two handles for pulling out the two water boxes b3 respectively. The water tank assembly b is arranged on the top plate 1 so as to be movable forward and backward, and the movement process is realized by the slide rail assembly a arranged on the upper surface of the top plate 1 and the lower surface of the water tank assembly b. The water tank assembly b at least includes an outer shell b1 and a water box b3, and the outer shell b1 has a first inner cavity for placing the water box b3, and a first opening b12 is opened on the front side of the first inner cavity for the water box b3 to be moved out. A limiting protrusion 2 is provided on the top plate 1 and arranged near the outer edge of the water tank assembly b. The limiting protrusion 2 is in the shape of a quadrangular prism and is vertically arranged on the top plate 1. A first limiting structure 3 is provided on the rear part of the outer side wall of the outer shell b1, which can cooperate with the limiting protrusion 2 when the water tank assembly b moves forward to a position state, thereby limiting the backward movement of the water tank assembly b. The water tank assembly b is provided with a pushing mechanism b0 that can push the water box b3 out of the first opening b12 of the outer shell b1 when the first limiting structure 3 cooperates with the limiting protrusion 2 to limit the position state. The pushing mechanism b0 is connected to the outer shell b1 and the water box b3 respectively.

[0059] Specifically, the first limiting structure 3 includes a limiting column 31, a third elastic member 32, a shift fork 33, a rotating arm 34 and a mounting box 35. The mounting box 35 is arranged on the outer wall of the outer shell b1 and is hollow inside. The limiting column 31 can be moved up and down in the mounting box 35. The third elastic member 32 is a spring arranged on the mounting box 35 and located above the limiting column 31, so that the limiting column 31 always maintains a downward movement trend. The lower end of the mounting box 35 is provided with a lower port 351 for the lower end of the limiting column 31 to extend out. The limiting column 31 The front side surface of the lower end is formed with a first inclined surface 311 which is gradually inclined backward from top to bottom. The middle part of the fork 33 is rotatably arranged on the outer wall of the outer shell b1 through the second rotating shaft 330. The first end of the fork 33 is connected to the limiting column 31, and the second end of the fork 33 is a rotating free end. A protrusion 312 extending in the direction of the fork 33 is formed on the side wall of the limiting column 31. Correspondingly, an opening 352 is opened on the side wall of the mounting box 35 for the first end of the fork 33 to extend into and hang on the lower surface of the protrusion 312. The first end of the shift fork 33 is formed with a hook portion 331 that can cooperate with the lower surface of the protrusion 312, and the second end of the shift fork 33 is formed as a toggle portion 332 that gradually tilts upward and backward and gradually decreases in width in the up-down direction. The lower part of the rotating arm 34 is rotatably provided on the outer wall of the outer shell b1 through the first rotating shaft 340 and is located above the shift fork 33. The lower end of the rotating arm 34 has a pressing portion 341 that can contact the second end of the shift fork 33. The pressing portion 341 at the lower end of the rotating arm 34 cooperates with the toggle portion 332 to press. More specifically, the upper surface of the shifting portion 332 is gradually formed with a second inclined surface 333 from the middle to the rear and upward, the lower surface of the rear portion of the pressing portion 341 cooperates with the second inclined surface 333 to press, the lower surface of the front portion of the pressing portion 341 cooperates with the upper surface of the installation box 35 to press, and the pressing portion 341 is formed into an arc structure arranged around the first rotating shaft 340, and the lower surface of the front portion of the pressing portion 341 and the lower surface of the rear portion of the pressing portion 341 are arranged at an obtuse angle and are both located below the first rotating shaft 340. The above structure can make the fork 33 and the rotating arm 34 fit compactly and stably. Symmetrical limiting protrusions 2 and first limiting structures 3 can be respectively provided on the two oppositely arranged outer side walls of the water tank assembly b, and the upper ends of the rotating arms 34 of the two first limiting structures 3 can be connected to a cross bar 30 for easy operation. When the water tank assembly b moves forward, the first inclined surface 311 at the lower end of the limiting column 31 can cooperate with the top of the limiting protrusion 2 to slide and cause the third elastic member 32 to contract and the limiting column 31 to move upward. When the lower end of the limiting column 31 bypasses the limiting protrusion 2 from back to front, the rear side wall of the lower end of the limiting column 31 abuts against the front side wall of the limiting protrusion 2, thereby limiting the position of the water tank assembly b and preventing the water tank assembly b from moving backward. When the water tank assembly b moves backward when necessary, the rotating arm 34 is rotated, and the pressing portion 341 of the rotating arm 34 presses the fork 33 to rotate the fork 33 and drive the limiting column 31 to move upward to overcome the elastic force of the third elastic member 32, and the lower end of the limiting column 31 is disengaged from the limiting protrusion 2, and the water tank assembly b can move backward.

[0060] The outer side wall of the water tank assembly b of this embodiment is also provided with a second limiting structure 4 located in front of the first limiting structure 3 and capable of cooperating with the limiting protrusion 2 when the water tank assembly b moves backward and is in place, thereby limiting the forward movement of the water tank assembly b. The second limiting structure 4 includes a body provided on the outer side wall of the outer shell b1, and the rear side wall of the body is provided with an extension plate 41 extending backward, the end of the extension plate 41 is bent obliquely forward and downward to form a first inclined portion 411, and the lower end of the first inclined portion 411 extends forward and upward to form a second inclined portion 412, and the rear side wall of the body is also provided with an extension block 42 extending backward and located below the extension plate 41, the extension block 42 has a vertically arranged plane 421, and the extension block 42 is located in front of the second inclined portion 412 and forms a limiting opening 40 between the second inclined portion 412 for the limiting protrusion 2 to be inserted into. When the water tank assembly b moves backward into position, the limiting protrusion 2 is located in the limiting opening 40, thereby preventing the water tank assembly b from moving backward; when the water tank assembly b moves forward, the limiting protrusion 2 can gradually disengage from the limiting opening 40 through the second inclined portion 412 and the first inclined portion 411, without affecting the forward movement of the water tank assembly b.

[0061] In this embodiment, the ejection mechanism b0 includes an inner shell b2, an elastic mechanism b4, a locking structure b5 and a trigger member b6. The inner shell b2 can be slidably arranged in the first inner cavity of the outer shell b1. The two inner side walls of the inner shell b2 are respectively connected to the inner side walls of the outer shell b1 through sliding rails b21. The inner shell b2 can be pulled out of the first inner cavity of the outer shell b1 or pushed into the first inner cavity through the first opening b12. The inner shell b2 has a second inner cavity for placing a water box b3. The front side of the inner shell b2 is provided with a second opening b22 for pulling the water supply box b3 out of or pushing it into the second inner cavity. The elastic mechanism b4 is connected to the inner shell b2 and the outer shell b1 and enables the inner shell b2 to always maintain a tendency to move outward relative to the outer shell b1; the locking structure b5 is used to lock the state of the elastic mechanism b4 when the inner shell b2 is completely hidden in the outer shell b1, and the trigger member b6 is arranged on the top plate 1 below the locking structure b5 and is used to release the locking state of the locking structure b5.

[0062] Specifically, the middle part of the inner shell b2 has a mounting cavity b20 extending forward and backward, the elastic mechanism b4 is arranged in the mounting cavity b20, and the front end of the elastic mechanism b4 is connected to the inner shell b2, and the rear end of the elastic mechanism b4 is connected to the outer shell b1. The locking structure b5 includes a mounting seat b51, a locking member b52, and an elastic member b53. The mounting seat b51 is arranged in the mounting cavity b20 and extends along the front and rear direction of the mounting cavity b20. The rear side of the mounting seat b51 is provided with a slide groove b511 arranged along the length direction, and the rear end of the slide groove b511 is bent downward to form a limiting area b5111, that is, the slide groove b511 is formed as a whole in an L shape, the portion of the slide groove b511 extending horizontally along the length direction of the mounting seat b51 is a non-limiting area b5112, and the portion of the slide groove b511 arranged vertically at the rear end of the mounting seat b51 is a limiting area b5111. The locking member b52 can slide back and forth in the slide groove b511. When the rear of the locking member b52 corresponds to the non-limiting area b5112 of the slide groove b511, the elastic mechanism b4 is in a working state, and the locking member b52 can be pulled forward along the slide groove b511 and the inner housing b2 can be brought out of the outer housing b1. When the rear of the locking member b52 corresponds to the limiting area b5111 of the slide groove b511, the elastic mechanism b4 is in a locked state, and the inner housing b2 is in the outer housing b1 and will not pop out. The elastic member b6 is connected to the locking member b52 and enables the locking member b52 to always maintain a tendency to move downward relative to the slide groove b511.

[0063] The rear side of the locking piece b52 has a first limiting portion b521 formed in a hook shape, and correspondingly, the middle part of the locking piece b52 extends upward to form a second limiting portion b522, and the top of the rear end of the installation cavity b20 has a limiting column b201 extending downward, and a clamping groove b523 is formed between the first limiting portion b521 and the second limiting portion b522, which can clamp the limiting column b201 therein so that the locking piece b52 and the inner shell body b2 maintain synchronous movement in the front and rear directions. A first axial hole b524 is opened in the middle part of the locking member b52 for the first elastic member b531 to pass through, and a second axial hole b525 is opened in the lower part of the first limiting portion b521 for the second elastic member b532 to pass through. The first elastic member b531 passes through the first axial hole b524 to movably connect the middle part of the locking member b52 to the slide groove b511. Regardless of whether the locking member b52 is locked or not, the first axial hole b524 is always located in the non-limiting area b5112 of the slide groove b511. The second elastic member b532 passes through the second shaft hole b525 to movably connect the rear part of the locking member b52 to the slide slot b511. When the second elastic member b532 is located in the slide slot non-limiting area b5112, the elastic mechanism b4 is in a working state. When the second elastic member b532 is located in the slide slot limiting area b5111, the elastic mechanism b4 is in a locked state. This structure facilitates the locking and unlocking process of the locking member b52. The first elastic member b531 and the second elastic member b532 together constitute the elastic member b53.

[0064] A connecting plate b7 is provided on one side of the mounting seat b51, which can link the first elastic member b531 and the second elastic member b532. A first through hole b71 aligned with the first axial hole b524 is opened at the front of the connecting plate b7. The first elastic member b531 is formed into a U shape. The middle part of the first elastic member b531 passes through the first through hole b71 and the non-limiting area b5112 of the slide groove. The end of the first elastic member b531 is bent backward and approached to the second elastic member b532. A slot b73 is provided on the outer wall of the connecting plate b7 for limiting the position of the first elastic member b531 and the second elastic member b532. The rear part of the connecting plate b7 is provided with a second through hole b72 aligned with the second shaft hole b525 and located below the first through hole b71. The upper part of the second elastic member b532 passes through the second through hole b72 and the slide slot b511. The lower part of the second elastic member b532 is formed with a trigger portion b5321 extending downward. When the trigger portion b5321 is moved backward, the second elastic member b532 drives the second shaft hole b525 to break away from the slide slot limiting area b5111 and move upward to the slide slot non-limiting area b5112. A limiting notch b5113 is formed on the front side wall of the slide slot limiting area b5111. Correspondingly, the end of the second shaft hole b525 is formed with a sleeve b526 that can be clamped in the limiting notch b5112 to limit the locking state of the locking member b52.

[0065] The rear end of the mounting seat b51 is connected to the outer shell b1, the front end of the mounting seat b51 is connected to the inner shell b2, and the elastic mechanism b4 is arranged at the front part of the mounting seat b51 and the rear end is connected to the locking member b52. The elastic mechanism b4 of this embodiment is a damper that can keep its piston rod in a contracted state relative to the elastic mechanism b4 body, and the piston rod of the damper is connected to the front part of the locking member b52. The front part of the locking member b52 has a connecting hook b527 extending forward from the front side of the second limiting portion b522, and the connecting hook b527 is connected to the piston rod of the damper. The rear part of the mounting seat b51 is provided with a mounting groove b513 extending from the top to the bottom in the front-to-back direction and used to accommodate the locking member b52. The sliding groove b511 is provided on the side wall of the mounting seat b51 and communicates with the mounting groove b513. The front part of the locking member b52 is provided with a third limiting portion b528 located below the connecting hook b527 and extending downward. Correspondingly, the mounting groove b513 is connected from top to bottom and a stopper b514 is formed at the bottom to be able to engage with the third limiting portion b528 to prevent the locking member b52 from moving backward laterally. This structure is very clever in preventing the locking member b52 from continuing to move backward laterally when the second shaft hole b525 of the locking member b52 corresponds to the limiting area b5111. At this time, if the person continues to apply a backward force to the inner shell b2, the second shaft hole b525 and the second elastic member b532 can be easily pushed downward along the limiting area b5111, thereby limiting the locking member b52. The front end of the installation cavity b20 is provided with a first assembly plate b23 connected to the inner shell b2, the rear end of the installation cavity b20 is provided with a second assembly plate b24 connected to the outer shell b1, the front end of the mounting seat b51 is rotatably connected to the rear side wall of the first assembly plate b23, and the rear end of the mounting seat b51 is rotatably connected to the front side wall of the second assembly plate b24. The side wall of the installation cavity b20 is provided with a bayonet b202 arranged near the rear end, and correspondingly, the third assembly plate b25 is provided at the upper rear part of the installation cavity b20 and has a buckle b251 corresponding to the bayonet b202, and the limiting column b201 is provided on the lower surface of the third assembly plate b25.

[0066] The trigger member b6 is arranged on the top plate 1 and is located below the outer shell b1. The trigger member b6 has a protrusion b61 that can push the trigger portion b5321 of the second elastic member b532 backward when the outer shell b1 moves forward. The rear side wall of the trigger member b6 is formed as an inclined surface gradually inclined upward from the back to the front, and at least the upper part of the front side wall of the trigger member b6 is formed as an inclined surface gradually inclined upward from the front to the back, and the protrusion b61 is located at the top of the inclined surface of the rear side wall of the trigger member b6.

[0067] When the water tank box delayed ejection structure of the present embodiment is used, the water tank assembly b moves forward under the drive of the power mechanism a. When the water tank assembly b moves out to the set position as a whole, the first limiting structure 3 and the limiting protrusion 2 cooperate with each other to limit the position of the water tank assembly b, preventing the water tank assembly b from moving backward under non-human operation. In the process of horizontal forward movement of the water tank assembly b, when the triggering portion b5321 of the second elastic member b532 contacts the protruding portion b61 of the triggering member b6, an upward force is generated through the elastic member b53, so that the second axial hole b525 of the locking member b52 moves upward to the non-limiting area b5112 of the slide groove b511. At this time, the first limiting structure 3 and the limiting protrusion 2 have maintained a mutual limiting state for 1-2 seconds, and the elastic mechanism b4 drives the locking member b52 to move laterally forward along the slide groove b511, from And drive the inner shell b2 to move forward relative to the outer shell b1, and bring the water box b3 out of the outer shell b1, which is manifested as the delayed push-out of the water box b3; after the water in the water box b3 is changed, the inner shell b2 is manually pushed into the outer shell b1, and when the rear part of the locking member b52 corresponds to the limiting area b5111 of the slide groove b511, the elastic member b53 pulls the locking member b52 downward and limits it in the limiting area b5111. At this time, the elastic mechanism b4 is in a locked state, preventing the inner shell b2 from driving the water box b3 to move forward in a non-set state; the cross bar 30 is moved to cancel the limiting of the first limiting structure 3 and the limiting protrusion 2, so that the water tank assembly b can move backward under the drive of the power mechanism, and when the water tank assembly b moves backward to the set position, the second limiting structure 4 and the limiting protrusion 2 limit each other to prevent the water tank assembly b from continuing to move backward.

Claims

1. A delayed ejection structure of a water tank box, comprising a top plate (1) and a water tank assembly (b) disposed on the top plate (1) so as to be movable forward and backward, the water tank assembly (b) comprising at least an outer shell (b1) and a water box (b3), the outer shell (b1) having a first inner cavity capable of accommodating the water box (b3), a first opening (b12) for the water box (b3) to be removed from the front side of the first inner cavity, characterized in that: The top plate (1) is provided with a limiting protrusion (2) arranged near the outer edge of the water tank assembly (b), and the rear part of the outer side wall of the water tank assembly (b) is provided with a first limiting structure (3) which can cooperate with the limiting protrusion (2) when the water tank assembly (b) moves forward and is in position, thereby limiting the backward movement of the water tank assembly (b); The water tank assembly (b) is provided with a push-out mechanism (b0) capable of pushing the water box (b3) out of the first opening of the outer shell (b1) when the first limiting structure (3) and the limiting protrusion (2) are in a limiting state, and the push-out mechanism (b0) is connected to the outer shell (b1) and the water box (b3) respectively; The first limiting structure (3) comprises: A second limiting column (31) is movably disposed on the outer wall of the outer shell (b1) and has a front side surface at the lower end thereof formed with a first inclined surface (311) which gradually inclines backward from top to bottom; A third elastic member (32) enables the second limiting column (31) to always maintain a downward movement trend; A shift fork (33) is rotatably disposed on the outer side wall of the outer shell (b1), a first end of the shift fork (33) is connected to the second limiting column (31), and a second end of the shift fork (33) is a rotating free end; and A rotating arm (34) is rotatably disposed on the outer wall of the outer shell (b1) and is located above the shift fork (33), and the lower end of the rotating arm (34) has a pressing portion (341) that can contact at least the second end of the shift fork (33); The outer side wall of the water tank assembly (b) is also provided with a second limiting structure (4) which is located in front of the first limiting structure (3) and can cooperate with the limiting protrusion (2) when the water tank assembly (b) moves backward and is in place, thereby limiting the forward movement of the water tank assembly (b); the second limiting structure (4) includes a main body arranged on the outer side wall of the outer shell (b1); the rear side wall of the main body has an extension plate (41) extending backward; the end of the extension plate (41) is bent obliquely forward and downward to form a first inclined portion (411); the lower end of the first inclined portion (411) extends forward and upward to form a second inclined portion (412); the rear side wall of the main body is also provided with an extension block (42) extending backward and located below the extension plate (41); the extension block (42) is located in front of the second inclined portion (412) and between the second inclined portion (412) to form a limiting opening (40) for the limiting protrusion (2) to be inserted into.

2. The delayed ejection structure of the water tank box according to claim 1, characterized in that: An internally hollow mounting box (35) is arranged on the outer wall of the outer shell (b1); the second limiting column (31) is arranged in the mounting box (35) so as to be movable up and down; the third elastic member (32) is a spring arranged on the mounting box (35) and located above the second limiting column (31); a lower end of the mounting box (35) is provided with a lower port (351) for the lower end of the second limiting column (31) to extend out; a first protrusion (312) extending in the direction of the shift fork (33) is formed on the side wall of the second limiting column (31); correspondingly, an opening (352) is provided on the side wall of the mounting box (35) for the first end of the shift fork (33) to extend into and hang on the lower surface of the first protrusion (312) 3. The delayed ejection structure of the water tank box according to claim 2, characterized in that: The first end of the shift fork (33) is formed with a hook portion (331) that can cooperate with the lower surface of the first protruding portion (312), and the second end of the shift fork (33) is formed as a shifting portion (332) that gradually tilts upward and backward and gradually decreases in width in the up-down direction, and the pressing portion (341) at the lower end of the rotating arm (34) cooperates with and presses against the shifting portion (332).

4. The delayed ejection structure of the water tank box according to claim 3, characterized in that: The upper surface of the toggle portion (332) is formed with a second inclined surface (333) gradually extending upward from the middle portion to the rear, the lower surface of the rear portion of the pressing portion (341) cooperates with the second inclined surface (333) for pressing, and the lower surface of the front portion of the pressing portion (341) cooperates with the upper surface of the installation box (35) for pressing.

5. The delayed ejection structure of the water tank box according to claim 4, characterized in that: The lower part of the rotating arm (34) is connected to the outer shell (b1) through the first rotating shaft (340), and the pressing portion (341) is formed into an arc-shaped structure arranged around the first rotating shaft (340). The lower surface of the front part of the pressing portion (341) and the lower surface of the rear part of the pressing portion (341) are arranged at an obtuse angle and are both located below the first rotating shaft (340).

6. The delayed ejection structure of the water tank box according to any one of claims 1 to 5, characterized in that: The upper surface of the top plate (1) and the lower surface of the outer shell (b1) are correspondingly provided with a slide rail assembly (a) capable of moving the water tank assembly (b) forward and backward.

7. The delayed ejection structure of the water tank box according to any one of claims 1 to 5, characterized in that: The ejection mechanism (b0) comprises The inner shell (b2) is arranged in the first inner cavity of the outer shell (b1) so as to be movable forward and backward through the first opening (b12), and the inner shell (b2) has a second inner cavity for accommodating the water box (b3); An elastic mechanism (b4) is connected to the inner shell (b2) and the outer shell (b1) and enables the inner shell (b2) to always maintain a tendency to move outward relative to the outer shell (b1); A locking structure (b5) for locking the state of the elastic mechanism (b4) when the inner shell (b2) is completely hidden in the outer shell (b1); as well as The trigger member (b6) is arranged below the locking structure (b5) and is used to release the locking state of the locking structure (b5).

8. The delayed ejection structure of the water tank box according to claim 7, characterized in that: The middle part of the inner shell (b2) has an installation cavity (b20) extending forward and backward, the elastic mechanism (b4) is arranged in the installation cavity (b20), and the front end of the elastic mechanism (b4) is connected to the inner shell (b2), and the rear end of the elastic mechanism (b4) is connected to the outer shell (b1).

9. The delayed ejection structure of the water tank box according to claim 8, characterized in that: The locking structure (b5) includes A mounting seat (b51) is disposed in the mounting cavity (b20) and extends along the front-rear direction of the mounting cavity (b20); a slide groove (b511) arranged along the length direction is formed on the rear side of the mounting seat (b51), and a rear end of the slide groove (b511) is bent downward to form a limiting area (b5111); The locking member (b52) is slidably disposed in the slide groove (b511) back and forth. When the rear portion of the locking member (b52) corresponds to the non-limiting area (b5112) of the slide groove (b511), the elastic mechanism (b4) is in a working state. When the locking member (b52) corresponds to the limiting area (b5111) of the slide groove (b511), the elastic mechanism (b4) is in a locked state. as well as The elastic member (b53) is connected to the locking member (b52) and enables the locking member (b52) to always maintain a tendency to move downward relative to the slide groove (b511).

10. The delayed ejection structure of the water tank box according to claim 9, characterized in that: The rear side of the locking member (b52) has a first limiting portion (b521) formed in a hook shape, and correspondingly, the middle part of the locking member (b52) extends upward to form a second limiting portion (b522), and the top of the mounting cavity (b20) has a first limiting column (b201) extending downward, and a clamping groove (b523) is formed between the first limiting portion (b521) and the second limiting portion (b522) to clamp the first limiting column (b201) therein so that the locking member (b52) and the inner shell body (b2) maintain synchronous movement in the front-rear direction.

11. The delayed ejection structure of the water tank box according to claim 10, characterized in that: The middle part of the locking member (b52) is provided with a first axial hole (b524) for the first elastic member (b531) to pass through, and the lower part of the first limiting portion (b521) is provided with a second axial hole (b525) for the second elastic member (b532) to pass through. The first elastic member (b531) passes through the first axial hole (b524) to movably connect the middle part of the locking member (b52) to the slide groove (b511), and the second elastic member (b532) The rear part of the locking member (b52) is movably connected to the slide groove (b511) through the second axial hole (b525); when the second elastic member (b532) is located in the non-limiting area (b5112) of the slide groove (b511), the elastic mechanism (b4) is in a working state; when the second elastic member (b532) is located in the limiting area (b5111) of the slide groove (b511), the elastic mechanism (b4) is in a locked state.

12. The delayed ejection structure of the water tank box according to claim 11, characterized in that: A connecting plate (b7) is provided on one side of the mounting seat (b51) to link the first elastic member (b531) and the second elastic member (b532), a first through hole (b71) aligned with the first shaft hole (b524) is provided at the front of the connecting plate (b7), the middle of the first elastic member (b531) passes through the first through hole (b71) and the slide groove (b511), and the end of the first elastic member (b531) is bent backward and moved closer to the second elastic member (b532); a first through hole (b71) aligned with the second shaft hole (b524) is provided at the rear of the connecting plate (b7). ) is aligned with and located below the first through hole (b71), the upper portion of the second elastic member (b532) passes through the second through hole (b72) and the slide groove (b511), and the lower portion of the second elastic member (b532) is formed with a trigger portion (b5321) extending downward, and the trigger portion (b5321) enables the second elastic member (b532) to drive the second shaft hole (b525) to disengage from the limiting area (b5111) of the slide groove (b511) and move upward to the non-limiting area (b5112) of the slide groove (b511) when the trigger portion (b5321) is pushed backward.

13. The delayed ejection structure of the water tank box according to claim 12, characterized in that: A limiting notch (b5113) is formed on the front side wall of the limiting area (b5111) of the slide groove (b511), and correspondingly, a sleeve (b526) is formed at the end of the second axial hole (b525) which can be clamped in the limiting notch (b5113) to limit the locking state of the locking member (b52).

14. The delayed ejection structure of the water tank box according to claim 9, characterized in that: The rear end of the mounting seat (b51) is connected to the outer shell (b1), the front end of the mounting seat (b51) is connected to the inner shell (b2), and the elastic mechanism (b4) is arranged at the front part of the mounting seat (b51) and the rear end is connected to the locking member (b52).

15. The delayed ejection structure of the water tank box according to claim 14, characterized in that: The elastic mechanism (b4) is a damper that can keep the piston rod in a contracted state relative to the elastic mechanism body at all times, and the piston rod of the damper is connected to the front part of the locking member (b52).

16. The delayed ejection structure of the water tank box according to claim 15, characterized in that: The front portion of the locking member (b52) has a connecting hook (b527) extending forward from the front side of the second limiting portion (b522), and the connecting hook (b527) is connected to the piston rod of the damper.

17. The delayed ejection structure of the water tank box according to claim 16, characterized in that: The rear portion of the mounting seat (b51) is provided with a mounting groove (b513) extending from the top downward in the front-to-back direction and used to accommodate the locking member (b52); the sliding groove (b511) is provided on the side wall of the mounting seat (b51) and is connected to the mounting groove (b513); the front portion of the locking member (b52) is provided with a third limiting portion (b528) located below the connecting hook (b527) and extending downward; correspondingly, the mounting groove (b513) is connected from top to bottom and a stop portion (b514) is formed at the bottom which can be engaged with the third limiting portion (b528) to prevent the locking member (b52) from moving backward laterally.

18. The delayed ejection structure of the water tank box according to claim 14, characterized in that: The front end of the installation cavity (b20) is provided with a first assembly plate (b23) connected to the inner shell body (b2), and the rear end of the installation cavity (b20) is provided with a second assembly plate (b24) connected to the outer shell body (b1). The front end of the installation seat (b51) is rotatably connected to the rear side wall of the first assembly plate (b23), and the rear end of the installation seat (b51) is rotatably connected to the front side wall of the second assembly plate (b24).

19. The delayed ejection structure of the water tank box according to claim 14, characterized in that: The side wall of the installation cavity (b20) is provided with a bayonet (b202) arranged near the rear end. Correspondingly, the third assembly plate (b25) is arranged at the upper rear part of the installation cavity (b20) and has a buckle (b251) corresponding to the bayonet (b202).

20. The delayed ejection structure of the water tank box according to claim 10, characterized in that: The trigger member (b6) has a second protrusion (b61) which can push the trigger portion (b5321) of the second elastic member (b532) backward when the outer shell (b1) moves forward.

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