Steam box

Abstract

The utility model relates to the field of steam boxes, and provides a steam box which comprises a base body, a water tank, a box cover, a magnetic attraction body, a magnet and a power device, a containing cavity is limited in the base body, the water tank is arranged in the containing cavity, the box cover is movably arranged on the base body and corresponds to the water tank in position, the magnetic attraction body is fixed on the box cover, and the magnet is fixed on the box cover. The power device is used for driving the magnet to move along a preset path, the preset path is provided with a first position and a second position, the magnet can attract the magnetic attraction body to close the box cover when located at the first position, and the magnet can release the magnetic attraction body when located at the second position. The power device serves as a power source to drive the magnet to move away from the magnetic attraction body to open the tank cover, the risk that children open the tank cover to make contact with the water tank is reduced or avoided, and safety is high. The power device overcomes the magnetic force between the magnet and the magnetic attraction body to open the cover, the required cover opening power is small, and the cover can be closed manually, so that the power provided by the power device for opening and closing the cover of the steam box is small, and the energy consumption is low.

Description

Technical Field

[0001] The utility model relates to the field of steamers, in particular to a steamer with an automatic cover opening. Background Art

[0002] Some existing kitchen steamers integrate the function of an oven to become a steam oven. Usually, a cover is set on the surface of the steamer, and a water tank is set inside the steamer. Water is added to the water tank by opening the cover. By hiding the water tank behind the cover, the risk of the water tank slipping and being touched by children is reduced or avoided, thereby improving the safety of the steamer. However, the hiding method is often purely mechanical (such as door suction type, press type mechanism), although the operation is simple, but children can still operate it, and the safety is poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steamer in order to overcome the defect of poor safety of the steamer in the prior art.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A steamer, comprising:

[0006] A base body, wherein a receiving cavity is defined in the base body;

[0007] A water tank, disposed in the accommodating cavity;

[0008] A box cover, movably arranged on the base body and corresponding to the position of the water tank, for closing the opening of the accommodating cavity;

[0009] A magnetic body, fixed on the box cover;

[0010] A magnet and a power device, wherein the power device is used to drive the magnet to move along a preset path, wherein the preset path has a first position and a second position, wherein when the magnet is located at the first position, the magnet can adsorb the magnetic body so that the box cover is locked, and when the magnet is located at the second position, the magnet can release the magnetic body so that the box cover is unlocked.

[0011] In this solution, the following methods can be used to open and close the cover:

[0012] When the box cover is locked, the box cover remains in a closed state. When the box cover needs to be opened, the power device drives the magnet to move to the second position, the magnet moves away from the magnetic attraction body and releases the magnetic attraction body, so that the box cover is unlocked and can be opened;

[0013] After the box cover is opened, the power device drives the magnet to move to the first position so that the magnetic body can absorb the magnet to close the box cover, preparing for the box cover to be closed; because the magnetic body is away from the magnet when the box cover is opened, even if the magnet moves to the first position at this time, it still cannot absorb the magnetic body, and the box cover remains open;

[0014] The box cover is pushed manually so that the magnetic body approaches the magnet located at the first position and is attracted by the magnet, so that the box cover is locked and remains closed.

[0015] The power device acts as a power source to drive the magnet to move away from the magnetic body to unlock the box, so that the box cover can be opened, reducing or avoiding the risk of children opening the box cover and contacting the water tank, which is highly safe. The power device can unlock the box cover by overcoming the magnetic force between the magnet and the magnetic body, and the required power is small, and the cover can be closed manually, so that the power required by the power device to open and close the box cover of the steam box is small, reducing energy consumption.

[0016] Preferably, the steamer also includes a heat source, and the heat source is used for cooking food;

[0017] And / or, the magnet is a permanent magnet, and the magnetic body is an iron sheet.

[0018] In this solution, the steamer includes a heat source and has the function of an oven. Steaming and baking are combined to form a steam oven. On the one hand, some parts for steaming and baking can be used together, which can save costs; on the other hand, the structure can be made compact.

[0019] The magnet is a permanent magnet, which is used to absorb the magnetic body to keep the box cover closed without additional energy consumption. The iron sheet has low cost.

[0020] Preferably, the steamer further comprises a transmission mechanism, and the transmission mechanism is used for converting rotational motion into linear motion, and the output shaft of the power device performs rotational motion, and the output shaft of the power device, the transmission mechanism and the magnet are dynamically connected in sequence.

[0021] In the present technical solution, most of the existing power devices output rotary power, such as motors. The transmission mechanism is used to convert the rotation of the power device into the movement of the magnet, so that the magnet moves in a straight line. Compared with the rotary motion, the position correspondence of the linear motion is simple, the control is simple, and the movement space of the linear motion is small, so that the steam box structure is compact. The box cover is opened by moving the magnet in a straight line away from the magnetic body on the box cover, which is simple and reliable.

[0022] Preferably, the transmission mechanism is a cam mechanism, comprising a cam and a follower, wherein the cam is fixedly connected to the output end of the power device, and the follower is fixedly connected to the magnet and is used to drive the magnet to perform linear motion;

[0023] Or, the transmission mechanism includes a meshing gear and a rack, the gear is fixedly connected to the output end of the power device, and the rack is fixedly connected to the magnet and is used to drive the magnet to perform linear motion;

[0024] Or, the transmission mechanism includes a turntable and a connecting rod, the turntable is a circular disk, the turntable and the output end of the power device are fixedly connected at the center of the turntable, one end of the connecting rod is rotatably connected to the turntable at the eccentric point of the turntable, and the other end of the connecting rod is rotatably connected to the magnet and is used to drive the magnet to perform linear motion;

[0025] Alternatively, the transmission mechanism includes a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected to the output end of the power device, and the other end is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the magnet and is used to drive the magnet to perform linear motion.

[0026] In this solution, the transmission mechanism is a cam mechanism, a gear-rack mechanism including a gear and a rack, a turntable-connecting rod mechanism including a turntable and a connecting rod, or a two-connecting rod mechanism including a first connecting rod and a second connecting rod, and has a simple structure.

[0027] Preferably, the transmission mechanism is a cam mechanism;

[0028] The follower is a flat-bottomed follower;

[0029] The steamer further comprises an elastic member, one end of the elastic member in the extension direction is fixedly connected to the magnet, and the other end is fixedly connected to the base, and the elastic member is used to reset the magnet from the second position to the first position;

[0030] The steam box further comprises a signal switch, and when the magnet is located at the first position, the farthest point of the cam abuts against the signal switch.

[0031] In this solution, when the transmission mechanism is a cam mechanism, the follower of the cam mechanism is a flat-bottomed follower, so that the direction of the cam force on the follower is constant, thereby improving the force conditions of the follower and the magnet.

[0032] When the transmission mechanism is a cam mechanism, the elastic member is used to reset the magnet from the second position to the first position to prepare for closing the box cover.

[0033] When the transmission mechanism is a cam mechanism, a signal switch is used to detect the position of the magnet. The farthest point of the cam is used to abut the signal switch, which can prevent other parts of the cam from touching the signal switch during the movement of the cam. It is simple, safe and reliable. When the magnet is in the first position, it can absorb the magnetic body to close the box cover. When the magnet moves from the second position to the first position, the farthest point of the cam can just abut on the signal switch to trigger a signal. This signal can be used as a signal that the cam has moved to the right position. Through this signal, the power device is controlled to stop moving, so that the magnet remains in the first position.

[0034] Preferably, the steam box further comprises a mounting box fixedly connected to the base, and both ends of the mounting box have mounting holes;

[0035] The driven member is inserted through the two mounting holes and can move relative to the mounting holes;

[0036] Or, the rack is passed through the two mounting holes and can move relative to the mounting holes;

[0037] Or, the steamer further comprises a moving part, the magnet is fixed on the moving part, the other end of the connecting rod is rotatably connected to the moving part, and the moving part is inserted through the two mounting holes and can move relative to the mounting holes;

[0038] Alternatively, the steamer further comprises a moving part, the magnet is fixed on the moving part, the other end of the second connecting rod is rotatably connected to the moving part, and the moving part is penetrated through the two mounting holes and can move relative to the mounting holes.

[0039] In this solution, when the transmission mechanism is a turntable connecting rod mechanism, the other end of the connecting rod is rotatably connected to the moving part, and the moving part is inserted into two mounting holes and can move relative to the mounting holes, so that the rotation of the connecting rod drives the moving part to move; by fixing the magnet on the moving part, the other end of the connecting rod is rotatably connected to the magnet and drives the magnet to move.

[0040] When the transmission mechanism is a two-link mechanism, the other end of the second link is rotatably connected to the moving part, and the moving part is inserted into two mounting holes and can move relative to the mounting holes, so that the second link rotates to drive the moving part to move; by fixing the magnet on the moving part, the other end of the second link is rotatably connected to the magnet and drives the magnet to move.

[0041] By providing a mounting box to mount a follower, a rack or a moving part, the magnet is moved along a preset path, which can increase the stability of the movement of the magnet.

[0042] Preferably, the steamer further comprises a mounting box and a moving part, the mounting box is fixedly connected to the base, the mounting box has a mounting hole, the magnet is mounted on the moving part, and the moving part is movably mounted on the mounting hole.

[0043] In this solution, by providing a mounting box and a moving part, the magnet is moved relative to the mounting hole, thereby improving the stability of the movement of the magnet.

[0044] Preferably, at least one side surface of the moving part is provided with a groove;

[0045] The length of the groove is greater than the depth of the mounting hole;

[0046] And / or, the magnet is sleeved on the moving part and matched with the groove.

[0047] In this solution, the depth of the groove is greater than the depth of the mounting hole, so that the groove can be used as a vent hole to prevent the moving part from being stuck relative to the mounting box and unable to slide.

[0048] The magnet is sleeved on the moving part and matched with the groove on the moving part, which can improve the reliability of the connection between the magnet and the moving part.

[0049] Preferably, the mounting box is provided with mounting holes at two opposite ends, the moving part is passed through the two mounting holes, and the magnet is arranged between the two mounting holes;

[0050] And / or, the power device and the installation box are arranged in the accommodating cavity.

[0051] In this solution, both ends are provided with mounting holes, and the moving part is inserted through the two mounting holes, which can improve the stability and reliability of the movement of the moving part and the magnet. The magnet is arranged between the two mounting holes, which can make the structure compact.

[0052] The power device and the installation box are arranged in the accommodating cavity, so that the steam box structure is compact and the power device and the installation box can be easily maintained by opening the box cover.

[0053] Preferably, the installation box comprises a first part and a second part connected to each other;

[0054] At least one of the mounting holes is formed by the surfaces of the first part and the second part facing each other;

[0055] And / or, the first part and the second part are detachably connected.

[0056] In this solution, by configuring the installation box to include a first part and a second part, it is convenient to install the moving part and the magnet relative to one of the first part and the second part, and then install the other, so that the moving part and the magnet are easy to install.

[0057] The first part and the second part are detachably connected, which can improve the convenience of assembling the installation box and facilitate the maintenance of the installation box and related structures.

[0058] Preferably, the steam box further comprises a position detector, and the position detector is used to detect the position of the magnet.

[0059] In this solution, the position of the magnet is detected by a position detector to control the movement of the power device according to the position of the magnet, so that the magnet can stay in the first position to facilitate the box cover to remain closed.

[0060] Preferably, one end of the box cover is rotatably connected to the base;

[0061] And / or, the box cover and the accommodating cavity are arranged at the lower part of the base.

[0062] In this solution, the box cover and the base are rotatably connected and adopt a flip-top arrangement, which is easy to use.

[0063] The box cover and the accommodating cavity are arranged at the lower part of the base, that is, corresponding to the position of the lower half of the base, which is convenient for arranging the water tank at the lower part of the steaming cavity of the steamer. On the one hand, it is convenient to reduce the resistance of the steam generated by heating the water in the water tank to flow to the steaming cavity; on the other hand, it is convenient to increase the length and width of the water tank to make the volume larger and occupy a smaller height space.

[0064] Preferably, the lower end or the horizontal end of the box cover is rotatably connected to the base through an external elastic hinge, so that the box cover remains open;

[0065] Alternatively, the lower end of the box cover is rotatably connected to the base, and the center of gravity of the box cover is located on a side away from the base, so that the box cover remains open.

[0066] In this solution, the lower end or the horizontal end of the box cover is rotatably connected to the base, and the box cover is in the form of flipping open downward or flipping open to the side, which is convenient to use.

[0067] The box cover and the base are rotatably connected through an external elastic hinge, or the box cover is kept in an open state after being opened through the center of gravity setting of the box cover, so as to facilitate the addition of water to the water tank.

[0068] Preferably, the lower end of the box cover is rotatably connected to the base, and when the box cover is opened, it is parallel to the horizontal direction, or obliquely upward and forms an angle greater than zero and less than or equal to 5° with the horizontal direction.

[0069] In this solution, the box cover is parallel to the horizontal direction when opened, and the box cover can be used as a temporary loading platform.

[0070] When the tank cover is opened, it is tilted upward and forms an angle greater than zero and less than or equal to 5° with the horizontal direction. This can not only not affect the filling of water into the water tank, but also form an oblique upward support for the water tank to prevent the water tank from sliding, thereby improving safety.

[0071] The positive and progressive effects of the utility model are:

[0072] The power device acts as a power source to drive the magnet to move away from the magnetic body to unlock the box cover, so that the box cover can be opened, reducing or avoiding the risk of children opening the box cover and contacting the water tank, and having high safety. The power device can unlock the box cover to open the cover by overcoming the magnetic force between the magnet and the magnetic body, and the required unlocking power is small, and the cover can be closed manually, so that the power required by the power device to open and close the box cover of the steam box is small, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 This is a partial structural schematic diagram of a steamer according to Embodiment 1 of the present utility model;

[0074] Figure 2 This is a schematic diagram of the structure of the installation box of Example 1 of the utility model;

[0075] Figure 3 It is a schematic structural diagram of the moving part (driven member) and the magnet of Example 1 of the utility model;

[0076] Figure 4 It is a partial structural schematic diagram of the steam box when the magnet of Example 1 of the utility model is located at the first position;

[0077] Figure 5 It is a partial structural schematic diagram of the steamer when the magnet of Example 1 of the utility model is located at the second position;

[0078] Figure 6 It is a partial structural schematic diagram of the steamer of Example 2 of the utility model;

[0079] Figure 7 This is a schematic diagram of the structure of the installation box and the position sensor of Example 2 of the utility model;

[0080] Figure 8 This is a schematic structural diagram of the moving part (rack) and the magnet of Example 2 of the utility model;

[0081] Fig. 9 It is a partial structural schematic diagram of the steam box when the magnet of Example 2 of the utility model is located at the first position;

[0082] Fig.10 It is a partial structural schematic diagram of the steamer when the magnet of Example 2 of the utility model is located at the second position;

[0083] Fig.11 This is a partial structural schematic diagram of a steamer according to Embodiment 3 of the present utility model;

[0084] Fig.12 This is a schematic diagram of the structure of the installation box and the position sensor of Example 3 of the utility model;

[0085] Fig.13 This is a schematic diagram of the structure of the moving part and the magnet of Example 3 of the utility model;

[0086] Fig.14 It is a partial structural schematic diagram of the steam box when the magnet of Example 3 of the utility model is located at the first position;

[0087] Fig.15 It is a partial structural schematic diagram of the steamer when the magnet of Example 3 of the utility model is located at the second position;

[0088] Fig.16 It is a partial structural schematic diagram of the steam box when the magnet of Example 4 of the utility model is located at the first position;

[0089] Fig.17 This is a partial structural schematic diagram of the steamer when the magnet of Example 4 of the utility model is located at the second position.

[0090] Description of reference numerals:

[0091] Steamer;

[0092] Base 11, accommodating cavity 111, water tank 12, tank cover 13;

[0093] Magnetic body 21, magnet 22;

[0094] Power unit 3;

[0095] Transmission mechanism 4;

[0096] Cam 411, follower 412;

[0097] Gear 421, rack 422;

[0098] Rotating plate 431, connecting rod 432;

[0099] A first connecting rod 441 and a second connecting rod 442;

[0100] Mounting box 5, first part 51, second part 52, mounting hole 53, screw 54;

[0101] Moving part 6, groove 61;

[0102] Signal switch 71, position sensor 72;

[0103] Elastic member 8;

[0104] External elastic hinge 9. DETAILED DESCRIPTION

[0105] The preferred embodiments are given below and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0106] It should be noted that:

[0107] To facilitate understanding of the relevant structure, Figure 1 , Figure 6 , Fig.11 The approximate positions of the external elastic hinge and the magnetic body are shown in FIG. 1 . In fact, the outer surface of the box cover is flat, and the external elastic hinge and the magnetic body cannot be seen from the outside.

[0108] Example 1

[0109] This embodiment provides a steamer, Figure 1-Figure 5 It is a partial structural schematic diagram of the steam box.

[0110] like Figure 1-Figure 5 As shown, the steamer includes:

[0111] A base body 11, wherein a receiving cavity 111 is defined in the base body 11;

[0112] The water tank 12 is disposed in the accommodating chamber 111;

[0113] The box cover 13 is movably arranged on the base 11 and corresponds to the position of the water tank 12, and is used to close the opening of the accommodating cavity 111;

[0114] The magnetic body 21 is fixed on the box cover 13;

[0115] The magnet 22 and the power device 3, the power device 3 is used to drive the magnet 22 to move along a preset path, and the preset path has a first position and a second position. When the magnet 22 is at the first position, it can absorb the magnetic body 21 so that the box cover 13 is locked, thereby closing. When the magnet 22 is at the second position, it can release the magnetic body 21 so that the box cover 13 is unlocked, so that it can be opened.

[0116] Optionally, the present embodiment includes the following design point 1: the magnet 22 is a permanent magnet, and the magnetic attractor is an iron sheet. The permanent magnet is used to attract the iron sheet so that the box cover 13 remains closed without the need for additional power and energy consumption. The iron sheet is low in cost and can be rust-proofed by painting or electroplating. In other embodiments, the magnet 22 may be an electromagnet or a permanent magnet 22. In other embodiments, the magnetic attractor may be an object such as an iron sheet that is not magnetic and can be attracted by a magnet, and may be a permanent magnet. In other embodiments, as long as the magnet and the magnetic attractor can be magnetically attracted to lock the box cover, it will suffice.

[0117] Optionally, this embodiment includes a second design point: the steamer also includes a heat source, and the heat source is used to cook and bake food. The steamer includes a heat source and has the function of an oven. Steaming and baking are combined to form a steam oven. On the one hand, some parts for steaming and baking can be used together, which can save costs; on the other hand, the structure can be made compact. In other embodiments, the steamer can only have the function of steaming, or can have the functions of steaming and baking at the same time. Regarding how the steamer can achieve steaming and baking, specific reference can be made to the prior art.

[0118] In other embodiments, two or either one of the design points one and two may be included simultaneously.

[0119] Optionally, in this embodiment, the steamer also includes a transmission mechanism 4, which is used to convert rotary motion into linear motion. The output shaft of the power device 3 performs rotary motion. The power device 3 is specifically a motor. The output shaft of the power device 3, the transmission mechanism 4, and the magnet 22 are connected in sequence. The transmission mechanism 4 is used to convert the rotation of the motor into the movement of the magnet 22, so that the magnet 22 performs linear motion. Compared with rotary motion, the position correspondence of linear motion is simple, the control is simple, and the motion space of linear motion is small, so that the steamer structure is compact. The magnet 22 performs linear motion away from the magnetic body 21 on the box cover 13 to unlock the box cover 13, which is simple and reliable. In this embodiment, the motor can be a stepper motor; in other embodiments, the motor can be a stepper motor, a low-power reduction motor (such as a low-voltage DC motor), etc.

[0120] In other embodiments, the power device 3 can drive the magnet 22 to move directly or indirectly through the transmission mechanism 4. The power device 3 can perform linear motion, such as a hydraulic cylinder or a cylinder; the power device 3 can perform rotational motion, such as a motor. The transmission mechanism 4 can convert the rotational motion into a linear motion to drive the magnet 22 to move, or convert the linear motion into a rotational motion to drive the magnet 22 to rotate. In other embodiments, the power device can drive the magnet to perform rotational motion so that the magnet switches between the first position and the second position to achieve locking and unlocking of the box cover. In other embodiments, whether the magnet performs rotational motion or linear motion, the first position and the second position can be located at different heights to achieve unlocking and locking, such as the present embodiment; the first position and the second position can be located at different positions in the horizontal direction to achieve unlocking and locking, such as the first position is close to the opening of the accommodating cavity, and the second position is located deep in the accommodating cavity away from the opening of the accommodating cavity.

[0121] Optional, such as Figure 4 , Figure 5 As shown, in this embodiment, the transmission mechanism 4 is a cam mechanism, including a cam 411 and a follower 412. The cam 411 is fixedly connected to the output end of the power device 3, and the follower 412 is fixedly connected to the magnet 22. The cam mechanism converts the rotational motion of the motor into the linear motion of the magnet 22, and the structure is simple and reliable.

[0122] Specifically, the connection hole of the cam 411 is fixedly connected to the output end of the power device 3, that is, the output shaft of the motor. The connection hole of the cam 411 can be set to a D-shaped hole, a square hole, other polygonal holes, etc.

[0123] In other embodiments, when the transmission mechanism 4 is a rotation and linear conversion mechanism, it can be a cam mechanism, a gear rack mechanism, a turntable connecting rod mechanism, a two-connecting rod mechanism, a nut-screw mechanism, etc.

[0124] Optional, such as Figure 4 , Figure 5 As shown, this embodiment includes the third design point: the follower 412 is a flat-bottomed follower. On the one hand, the cam 411 and the follower 412 maintain good contact, and the transmission effect is good; on the other hand, the direction of the force of the cam 411 on the follower 412 is constant, thereby improving the force condition of the follower 412 and the magnet 22.

[0125] Optionally, this embodiment includes the fourth design point: the steamer also includes an elastic member 8, one end of the elastic member 8 in the extension direction is fixedly connected to the magnet 22, and the other end is fixedly connected to the base 11, and the elastic member is used to reset the magnet from the second position to the first position. When the magnet 22 moves from the first position to the second position, the corresponding box cover 13 changes from the closed state to the open state, and the elastic member 8 stores elastic potential energy, which can automatically reset the magnet 22 from the second position to the first position, preparing for closing the box cover 13. In this embodiment, the elastic member 8 is specifically a spring.

[0126] Optional, such as Figure 4 , Figure 5 As shown, this embodiment includes the design point five: the steamer also includes a signal switch 71. When the magnet 22 is in the first position, the farthest point of the cam 411 abuts against the signal switch 71. The signal switch 71 is used as a position detector to obtain a signal that the magnet 22 is in the first position. When the magnet 22 is in the first position, the farthest point of the cam 411, that is, the point on the surface of the cam 411 farthest from the rotation center of the cam 411 abuts against the signal switch 71, triggering a signal. According to the signal, it can be judged that the magnet 22 is in the first position, so as to control the power device 3 to stop moving and keep the magnet 22 in the first position. The farthest point of the cam 411 is used to abut the signal switch 71, which can prevent other parts of the cam 411 from touching the signal switch 71 during the movement of the cam, which is simple, safe and reliable.

[0127] In other embodiments, a contact switch, a non-contact switch, a photoelectric sensor, a Hall sensor or other position sensor may be used as a position detector to detect the position of the magnet 22, so as to facilitate the control of the power device 3 according to the position of the magnet 22. In other embodiments, a position detector may not be provided. In other embodiments, the position detector may directly detect the position of the magnet 22, and the position of the magnet 22 may be obtained indirectly by detecting the position of other components, for example, by detecting the position of the moving part 6 to obtain the position of the magnet 22. In other embodiments, the position detector may be provided on the mounting box 5 or near the mounting box 5.

[0128] In other embodiments, three, any two, or any one of the three, four, and five design points may be included simultaneously.

[0129] Optional, such as Figure 2 , Figure 3 As shown, the steam box includes a mounting box 5, which is fixed on the base 11. The mounting box 5 has a mounting hole 53. The driven member 412 is mounted on the mounting hole 53 and can move relative to the mounting hole 53. The driven member 412 is used as the moving part 6 to install the magnet 22. The driven member 412 is mounted on the mounting box 5 and moves relative to the mounting box 5.

[0130] Optional, such as Figure 3 As shown, at least one side of the moving part 6, that is, the follower 412, is provided with a groove 61. Specifically, four sides of the follower 412 are all provided with grooves 61, and only two grooves 61 are shown in the figure.

[0131] Optionally, this embodiment includes a sixth design point: the length of the groove 61 is greater than the depth of the mounting hole 53. The groove 61 can be used as a vent to prevent the moving part 6 from being stuck relative to the mounting box 5 and unable to slide. In other embodiments, the groove 61, vents, etc. can be provided to prevent the moving part 6 from sliding and getting stuck relative to the mounting box 5.

[0132] Optionally, this embodiment includes a seventh design point: the magnet 22 is sleeved on the moving part 6 and matches with the groove 61. The reliability of the connection between the magnet 22 and the moving part 6 can be improved.

[0133] In other embodiments, the groove 61 may be provided or may not be provided. In other embodiments, two or any one of the design points six and seven may be included at the same time.

[0134] Optional, such as Figure 2 As shown, this embodiment includes design point eight: mounting holes 53 are provided at opposite ends of the mounting box 5, the moving part 6 is penetrated through the two mounting holes 53, and the magnet 22 is arranged between the two mounting holes 53. Both ends are provided with mounting holes 53, and the moving part 6 is penetrated through the two mounting holes 53, which can improve the stability and reliability of the movement of the moving part 6 and the magnet 22. The magnet 22 is arranged between the two mounting holes 53, which can make the structure compact. In other embodiments, one or more mounting holes 53 can be provided.

[0135] Optional, such as Figure 1 As shown, this embodiment includes the ninth design point: the power device 3 is arranged in the accommodating chamber 111. This can make the steam box structure compact and facilitate maintenance of the power device 3 by opening the box cover 13. In other embodiments, the power device 3 can be arranged outside the accommodating chamber 111.

[0136] Optional, such as Figure 1 As shown, this embodiment includes the tenth design point: the installation box 5 is arranged in the accommodating cavity 111. This can make the steam box structure compact and facilitate maintenance of the installation box 5 by opening the box cover 13. In other embodiments, the installation box 5 can be arranged outside the accommodating cavity 111.

[0137] In other embodiments, three, any two, or any one of design points eight, nine, and ten may be included simultaneously.

[0138] Optional, such as Figure 2 As shown, the installation box 5 is provided in a split form, including a first part 51 and a second part 52 connected to each other. In other embodiments, the installation box 5 may be integrated.

[0139] Optionally, this embodiment includes the design point eleven: at least one mounting hole 53 is formed by the surfaces of the first part 51 and the second part 52 relative to each other. Specifically, in this embodiment, only one mounting hole 53 is formed by the surfaces of the first part 51 and the second part 52 relative to each other. When assembling the steamer, the moving part 6 and the magnet 22 are first installed relative to the first part 51, and then the second part 52 is connected to the first part 51, so that the moving part 6 and the magnet 22 are easy to install. In other embodiments, there may be zero, one or more mounting holes 53 formed by the surfaces of the first part 51 and the second part 52 relative to each other.

[0140] Optionally, this embodiment includes a design point twelve: the first part 51 and the second part 52 are detachably connected. This can improve the convenience of assembling the installation box 5, and also facilitate the maintenance of the installation box 5 and the structure connected to the installation box 5. Specifically, in this embodiment, the first part 51 and the second part 52 are connected by screws 54. In other embodiments, the first part 51 and the second part 52 can be detachably connected or non-detachably connected, such as welding, riveting, bonding, pinning, threading, snap-fitting, etc.

[0141] In other embodiments, two or any one of the design points eleven and twelve may be included simultaneously.

[0142] Optionally, this embodiment includes the thirteenth design point: one end of the box cover 13 is rotatably connected to the base 11. A flip-top arrangement is formed, which is convenient to use. In other embodiments, the box cover 13 can be rotatably connected to the base 11, or can be slidably connected.

[0143] Optional, such as Figure 1As shown, this embodiment includes the design point 14: the box cover 13 and the accommodating cavity 111 are arranged at the lower part of the base 11. It is convenient to arrange the water tank 12 at the lower part of the steaming cavity of the steam box. On the one hand, it is convenient to reduce the resistance of the steam generated by heating the water in the water tank 12 to flow to the steaming cavity; on the other hand, it is convenient to increase the length and width of the water tank 12 to make the volume larger and occupy a smaller height space. In other embodiments, the position of the box cover 13 and the accommodating cavity 111 relative to the base 11 can be flexibly adjusted according to specific needs.

[0144] In other embodiments, two or any one of the thirteenth and fourteenth design points may be included simultaneously.

[0145] Optional, such as Figure 1 As shown, the lower end of the box cover 13 is rotatably connected to the base 11. In other embodiments, the lower end, the upper end, or one end in the horizontal direction of the box cover 13 may be rotatably connected to the base 11. When the lower end or the end in the horizontal direction of the box cover 13 is rotatably connected to the base 11, the box cover 13 is in the form of flipping down or flipping sideways to open, which is convenient to use.

[0146] Optionally, in this embodiment, the box cover 13 and the base 11 are rotatably connected by the external elastic hinge 9, so that the box cover 13 remains open. In other embodiments, when the lower end of the box cover 13 is rotatably connected to the base 11, the box cover 13 can be kept open by the external elastic hinge 9 or by setting the center of gravity of the box cover 13 on a side away from the base 11. Through the external elastic hinge 9 or by setting the center of gravity of the box cover 13, the box cover 13 is kept open after it is opened, so as to add water to the water tank 12 or perform equipment maintenance. The specific structure of the external elastic hinge 9 can refer to the prior art.

[0147] Optionally, in this embodiment, the box cover 13 is parallel to the horizontal direction when it is opened, and the box cover 13 can be used as a temporary loading platform. In other embodiments, the lower end of the box cover 13 can be rotatably connected to the base 11, and the box cover 13 is in an oblique upward state when it is opened, and forms an angle greater than zero and less than or equal to 5° with the horizontal direction, which can not affect the water tank 12 from being added, and can also form an oblique upward support for the water tank 12 to prevent the water tank 12 from sliding, thereby improving safety. In other embodiments, the angle between the box cover 13 and the horizontal direction when it is opened can be flexibly adjusted according to needs.

[0148] like Figure 4 , Figure 5 As shown, the steamer provided in this embodiment can be operated in the following manner:

[0149] The box cover 13 is generally in a closed state, and the box cover 13 and the base body 11 are in a close or nearly close state. At this time, the state of the cam 411, the magnet 22, and the magnetic body 21 is as follows: Figure 4As shown, the magnet approaches the magnetic body and attracts the magnetic body so that the box cover is locked and remains closed; when the box cover 13 needs to be opened, the power device 3 drives the cam 411 to rotate, so that the magnet 22 moves from the first position to the second position, the magnet 22 moves away from the magnetic body 21 and releases the magnetic body 21, the box cover 13 is unlocked, and automatically opens under the action of the external elastic hinge 9, and the elastic member 8 is compressed to store potential energy.

[0150] After the box cover 13 is opened, the power device 3 continues to drive the cam 411 to rotate, and the elastic member 8 releases potential energy to reset the magnet 22 from the second position to the first position, so that the magnetic body 21 can absorb the magnet 22 to close the box cover 13, preparing for the closing of the box cover 13; because the magnetic body 21 is away from the magnet 22 when the box cover 13 is opened, even if the magnet 22 moves to the first position at this time, it still cannot absorb the magnetic body 21, and the box cover 13 is still kept open under the action of the external elastic hinge 9; when the long side of the cam 411 contacts the follower 412, the magnet 22 just moves to the first position, and the cam 411 abuts against the position switch, triggering a signal, and the power device 3 is controlled to stop moving according to the signal.

[0151] When the box cover 13 needs to be closed, the box cover 13 is manually pushed so that the magnetic body 21 is close to the magnet 22 located at the first position and is attracted by the magnet, so that the box cover 13 is locked and remains closed.

[0152] The power device 3 acts as a power source to drive the magnet 22 to move away from the magnetic body 21 to unlock the box cover 13 so that the box cover can be automatically opened under the action of the external elastic hinge. There is no need to set a handle on the box cover 13. The outer surface of the box cover 13 is flat to prevent children from operating it, reducing or avoiding the risk of children opening the box cover 13 and contacting the water tank 12, and the safety is high.

[0153] To open the cover, after the power device 3 overcomes the magnetic force between the magnet 22 and the magnetic body 21, the outer elastic hinge 9 can automatically open the cover, and the power device 3 requires little power; to close the cover, the power device 3 only needs to drive the cam 411 to reset, and the cover can be closed manually, and the power device 3 requires little power. Therefore, the power device 3 has low load, low energy consumption, and low noise.

[0154] The power device 3 may adopt a stepping motor, the magnet 22 may adopt a permanent magnet, and the mounting box 5 may adopt a plastic part, all of which have the advantage of low cost.

[0155] Example 2

[0156] Figure 6-Figure 10 This is a schematic diagram of the structure of this embodiment, and only the differences from Embodiment 1 are described in detail here. The other structures of this embodiment refer to Embodiment 1 and other embodiments.

[0157] like Figure 6-Figure 10As shown, in this embodiment, the power device 3 is a motor that performs rotational motion; the transmission mechanism 4 includes a meshing gear 421 and a rack 422, the gear 421 is fixedly connected to the output end of the power device 3, and the rack 422 is fixedly connected to the magnet 22; the power transmission process is as follows: the motor rotates, the gear 421 rotates, and the rack 422 and the magnet 22 move.

[0158] Specifically, the connection hole of the gear 421 is fixedly connected to the output end of the power device 3, that is, the output shaft of the motor. The connection hole of the gear 421 can be set to a D-shaped hole, a square hole, other polygonal holes, etc.

[0159] In this embodiment, the rack 422 is used as the moving part 6, which is installed in the mounting hole 53 of the mounting box 5 and can move relative to the mounting box 5. By providing the mounting box 5 to mount the rack 422, the stability of the movement of the rack 422 and the magnet 22 can be improved. Specifically, the mounting box 5 has two mounting holes 53, and the rack 422 is inserted into the two mounting holes 53, which can further improve the stability of the movement of the rack 422.

[0160] like Figure 7 As shown, the steamer provided in this embodiment uses a position sensor 72 as a position detector to detect the movement of the magnet 22. The position sensor 72 can be a Hall sensor, an infrared sensor, etc. How to use the position sensor 72 to detect the position of an object can be specifically referred to the prior art. The position sensor 72 detects the position of the magnet 22, specifically, it can directly detect the position of the magnet 22, and can indirectly obtain the position of the magnet 22 by detecting the position of the rack 422.

[0161] like Fig. 9 , Fig.10 As shown, the steamer provided in this embodiment can be operated in the following manner:

[0162] The box cover 13 is generally in a closed state, and the box cover 13 and the base 11 are in a close or nearly close state. At this time, the gear 421, the rack 422, the magnet 22, and the magnetic body 21 are in a state as shown in FIG. Fig. 9 As shown, the magnet attracts the magnetic body so that the box cover is locked and remains closed; when the box cover 13 needs to be opened, the power device 3 drives the gear 421 to rotate, and the gear 421 drives the rack 422 to move, so that the magnet 22 on the rack 422 moves from the first position to the second position, the magnet 22 moves away from the magnetic body 21 and releases the magnetic body 21, and the box cover 13 is unlocked and automatically opened under the action of the external elastic hinge 9.

[0163] After the box cover 13 is opened, the power device 3 drives the gear 421 to rotate in the opposite direction, the gear 421 drives the rack 422 to move in the opposite direction, and the rack 422 drives the magnet 22 to reset from the second position to the first position, so that the magnetic body 21 can absorb the magnet 22 to close the box cover 13 and prepare for the closing of the box cover 13; because the magnetic body 21 is away from the magnet 22 when the box cover 13 is opened, even if the magnet 22 moves to the first position at this time, it still cannot absorb the magnetic body 21, and the box cover 13 is still kept open under the action of the external elastic hinge 9; the position sensor 72 is used to detect the position of the magnet 22. When the magnet 22 is reset to the first position, the power device 3 can be controlled to stop moving according to the signal detected by the position sensor 72, so that the magnet 22 remains in the first position.

[0164] When the box cover 13 needs to be closed, the box cover 13 is manually pushed so that the magnetic body 21 is close to the magnet 22 located at the first position to be attracted by the magnet, so that the box cover 13 is locked and remains closed.

[0165] Example 3

[0166] Figure 11-Figure 15 This is a schematic diagram of the structure of this embodiment, and only the differences from Embodiment 1 are described in detail here. The other structures of this embodiment refer to Embodiment 1 and other embodiments.

[0167] like Figure 11-Figure 15 As shown, in this embodiment, the power device 3 is a motor that performs rotational motion; the transmission mechanism 4 includes a turntable 431 and a connecting rod 432, and the turntable 431 is a disk; the steamer also includes a moving part 6; the turntable 431 and the output end of the power device 3 are fixedly connected at the center of the turntable 431, one end of the connecting rod 432 and the turntable 431 are rotatably connected at the eccentricity of the turntable 431, and the other end of the connecting rod 432 is rotatably connected to the moving part 6, and the magnet 22 is fixed on the moving part 6, and the moving part 6 is penetrated through the two mounting holes 53 of the mounting box 5 and can move relative to the mounting holes 53; the power device 3 drives the turntable 431 to rotate, so as to drive the connecting rod 432 to rotate, so that the other end of the connecting rod 432 drives the moving part 6 to move relative to the mounting box 5, thereby causing the magnet 22 on the moving part 6 to move relative to the mounting box 5. In this embodiment, the magnet 22 and the other end of the connecting rod 432 are rotatably connected through the moving part 6. In other embodiments, the moving part 6 may not be provided, and the other end of the connecting rod 432 is directly rotatably connected to the magnet 22 to drive the magnet 22 to move.

[0168] Specifically, the connection hole of the turntable 431 is fixedly connected to the output end of the power device 3, that is, the output shaft of the motor. The connection hole of the turntable 431 can be set to a D-shaped hole, a square hole, other polygonal holes, etc.

[0169] like Fig.12As shown, the steamer provided in this embodiment uses a position sensor 72 as a position detector to detect the movement of the magnet 22. The position sensor 72 can be a Hall sensor, an infrared sensor, etc. How to use the position sensor 72 to detect the position of an object can be specifically referred to the prior art. The position sensor 72 detects the position of the magnet 22, specifically, it can directly detect the position of the magnet 22, and can indirectly obtain the position of the magnet 22 by detecting the position of the moving part 6.

[0170] like Fig.14 , Fig.15 As shown, the steamer provided in this embodiment can be operated in the following manner:

[0171] The box cover 13 is generally in a closed state, and the box cover 13 and the base body 11 are in a close or nearly close state. At this time, the state of the turntable 431, the connecting rod 432, the magnet 22, and the magnetic body 21 is as follows: Fig.14 As shown, the magnet attracts the magnetic body, so that the box cover is locked and remains closed; when the box cover 13 needs to be opened, the power device 3 drives the turntable 431 to rotate, the turntable 431 drives the connecting rod 432 to rotate, and the other end of the connecting rod 432 drives the moving part 6 to move, so that the magnet 22 on the moving part 6 moves from the first position to the second position, the magnet 22 moves away from the magnetic body 21 and releases the magnetic body 21, and the box cover 13 is unlocked and automatically opened under the action of the external elastic hinge 9.

[0172] After the box cover 13 is opened, the power device 3 continues to drive the turntable 431 to rotate, and the turntable 431 drives the connecting rod 432 to rotate, and the other end of the connecting rod 432 drives the moving part 6 to move, so that the magnet 22 on the moving part 6 is reset from the second position to the first position, so that the magnetic body 21 can absorb the magnet 22 to close the box cover 13, and prepare for the closing of the box cover 13; because the magnetic body 21 is away from the magnet 22 when the box cover 13 is opened, even if the magnet 22 moves to the first position at this time, it still cannot absorb the magnetic body 21, and the box cover 13 is still kept open under the action of the external elastic hinge 9; the position sensor 72 is used to detect the position of the magnet 22. When the magnet 22 is reset to the first position, the power device 3 can be controlled to stop moving according to the signal detected by the position sensor 72, so that the magnet 22 remains in the first position.

[0173] When the box cover 13 needs to be closed, the box cover 13 is manually pushed so that the magnetic body 21 approaches the magnet 22 located at the first position and is attracted by the magnet, so that the box cover 13 is locked and remains closed.

[0174] Example 4

[0175] Figure 16-Figure 17 This is a schematic diagram of the structure of this embodiment, and only the differences from Embodiment 3 are described in detail here. The other structures of this embodiment refer to Embodiment 3 and other embodiments.

[0176] like Figure 16-Figure 17 As shown, in this embodiment, the power device 3 is a motor that performs rotational motion; the transmission mechanism 4 includes a first connecting rod 441 and a second connecting rod 442; the steamer also includes a moving part 6; one end of the first connecting rod 441 is fixedly connected to the output end of the power device 3, the other end of the first connecting rod 441 is rotatably connected to one end of the second connecting rod 442, the other end of the second connecting rod 442 is rotatably connected to the moving part 6, the magnet 22 is fixed on the moving part 6, and the moving part 6 is penetrated through two mounting holes 53 of the mounting box 5 and can move relative to the mounting holes 53; the power device 3 drives the first connecting rod 441 to rotate, so as to drive the second connecting rod 442 to rotate, so that the other end of the second connecting rod 442 drives the moving part 6 to move relative to the mounting box 5, thereby causing the magnet 22 on the moving part 6 to move relative to the mounting box 5. In this embodiment, the magnet 22 and the other end of the second connecting rod 442 are rotatably connected through the moving part 6. In other embodiments, the moving part 6 may not be provided, and the other end of the second connecting rod 442 is directly rotatably connected to the magnet 22 to drive the magnet 22 to move.

[0177] Specifically, the connection hole of the first connecting rod 441 is fixedly connected to the output end of the power device 3, that is, the output shaft of the motor. The connection hole of the first connecting rod 441 can be set to a D-shaped hole, a square hole, other polygonal holes, etc.

[0178] like Fig.16 , Fig.17 As shown, the steamer provided in this embodiment can be operated in the following manner:

[0179] The box cover 13 is generally in a closed state, and the box cover 13 and the base 11 are in a close or nearly close state. At this time, the first connecting rod 441, the second connecting rod 442, the magnet 22, and the magnetic body 21 are in a state as shown in FIG. Fig.16 As shown, the magnet attracts the magnetic body so that the box cover is locked and remains closed; when the box cover 13 needs to be opened, the power device 3 drives the first connecting rod 441 to rotate, the first connecting rod 441 drives the second connecting rod 442 to rotate, and the other end of the second connecting rod 442 drives the moving part 6 to move, so that the magnet 22 on the moving part 6 moves from the first position to the second position, the magnet 22 moves away from the magnetic body 21 and releases the magnetic body 21, and the box cover 13 is unlocked and automatically opened under the action of the external elastic hinge 9.

[0180] After the box cover 13 is opened, the power device 3 continues to drive the first connecting rod 441 to rotate, the first connecting rod 441 drives the second connecting rod 442 to rotate, and the other end of the second connecting rod 442 drives the moving part 6 to move, so that the magnet 22 on the moving part 6 is reset from the second position to the first position, so that the magnetic body 21 can absorb the magnet 22 to close the box cover 13, and prepare for the closing of the box cover 13; because the magnetic body 21 is away from the magnet 22 when the box cover 13 is opened, even if the magnet 22 moves to the first position at this time, it still cannot absorb the magnetic body 21, and the box cover 13 is still kept open under the action of the external elastic hinge 9; the position sensor 72 is used to detect the position of the magnet 22. When the magnet 22 is reset to the first position, the power device 3 can be controlled to stop moving according to the signal detected by the position sensor 72, so that the magnet 22 remains in the first position.

[0181] When the box cover 13 needs to be closed, the box cover 13 is manually pushed so that the magnetic body 21 approaches the magnet 22 located at the first position and is attracted by the magnet, so that the box cover 13 is locked and remains closed.

[0182] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A steamer, characterized in that: It includes: A base body, wherein a receiving cavity is defined in the base body; A water tank, disposed in the accommodating cavity; A box cover, movably arranged on the base body and corresponding to the position of the water tank, for closing the opening of the accommodating cavity; A magnetic body, fixed on the box cover; A magnet and a power device, wherein the power device is used to drive the magnet to move along a preset path, wherein the preset path has a first position and a second position, and when the magnet is located at the first position, it can adsorb the magnetic body so that the box cover is locked, and when the magnet is located at the second position, it can release the magnetic body so that the box cover is unlocked.

2. The steamer according to claim 1, characterized in that: The steamer also includes a heat source, which is used for cooking food; And / or, the magnet is a permanent magnet, and the magnetic body is an iron sheet.

3. The steamer according to claim 1, characterized in that: The steam box further comprises a transmission mechanism, which is used to convert the rotational motion into the linear motion. The output end of the power device performs the rotational motion. The output end of the power device, the transmission mechanism and the magnet are sequentially connected in power.

4. The steamer according to claim 3, characterized in that: The transmission mechanism is a cam mechanism, comprising a cam and a follower, wherein the cam is fixedly connected to the output end of the power device, and the follower is fixedly connected to the magnet and is used to drive the magnet to perform linear motion; Or, the transmission mechanism includes a meshing gear and a rack, the gear is fixedly connected to the output end of the power device, and the rack is fixedly connected to the magnet and is used to drive the magnet to perform linear motion; Or, the transmission mechanism includes a turntable and a connecting rod, the turntable is a circular disk, the turntable and the output end of the power device are fixedly connected at the center of the turntable, one end of the connecting rod is rotatably connected to the turntable at the eccentric point of the turntable, and the other end of the connecting rod is rotatably connected to the magnet and is used to drive the magnet to perform linear motion; Alternatively, the transmission mechanism includes a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected to the output end of the power device, and the other end is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the magnet and is used to drive the magnet to perform linear motion.

5. The steamer according to claim 4, characterized in that: The transmission mechanism is a cam mechanism; The follower is a flat-bottomed follower; The steamer further comprises an elastic member, one end of the elastic member in the extension direction is fixedly connected to the magnet, and the other end is fixedly connected to the base, and the elastic member is used to reset the magnet from the second position to the first position; The steam box further comprises a signal switch, and when the magnet is located at the first position, the farthest point of the cam abuts against the signal switch.

6. The steamer according to claim 4, characterized in that: The steam box further comprises a mounting box fixedly connected to the base, and both ends of the mounting box have mounting holes; The driven member is inserted through the two mounting holes and can move relative to the mounting holes; Or, the rack is passed through the two mounting holes and can move relative to the mounting holes; Or, the steamer further comprises a moving part, the magnet is fixed on the moving part, the other end of the connecting rod is rotatably connected to the moving part, and the moving part is inserted through the two mounting holes and can move relative to the mounting holes; Alternatively, the steamer further comprises a moving part, the magnet is fixed on the moving part, the other end of the second connecting rod is rotatably connected to the moving part, and the moving part is penetrated through the two mounting holes and can move relative to the mounting holes.

7. The steamer according to claim 1, characterized in that: The steam box further comprises a mounting box and a moving part, wherein the mounting box is fixedly connected to the base, the mounting box is provided with a mounting hole, the magnet is mounted on the moving part, and the moving part is movably mounted on the mounting hole.

8. The steamer according to claim 7, characterized in that: At least one side surface of the moving part is provided with a groove; The length of the groove is greater than the depth of the mounting hole; And / or, the magnet is sleeved on the moving part and matched with the groove.

9. The steamer according to claim 7, characterized in that: The mounting box is provided with mounting holes at two opposite ends, the moving part is passed through the two mounting holes, and the magnet is arranged between the two mounting holes; And / or, the power device and the installation box are arranged in the accommodating cavity.

10. The steamer according to claim 9, characterized in that: The installation box comprises a first part and a second part connected to each other; At least one of the mounting holes is formed by the surfaces of the first part and the second part facing each other; And / or, the first part and the second part are detachably connected.

11. The steamer according to claim 1, characterized in that: The steam box further comprises a position detector, and the position detector is used to detect the position of the magnet.

12. The steamer according to claim 1, characterized in that: One end of the box cover is rotatably connected to the base; And / or, the box cover and the accommodating cavity are arranged at the lower part of the base.

13. The steamer according to claim 12, characterized in that: The lower end or the horizontal end of the box cover is rotatably connected to the base through an external elastic hinge, so that the box cover is kept open; Alternatively, the lower end of the box cover is rotatably connected to the base, and the center of gravity of the box cover is located on a side away from the base, so that the box cover remains open.

14. The steamer according to claim 1, characterized in that: The lower end of the box cover is rotatably connected to the base. When the box cover is opened, it is parallel to the horizontal direction, or obliquely upward and forms an angle greater than zero and less than or equal to 5° with the horizontal direction.

Images