Locking device and range hood comprising same

Abstract

The utility model provides a locking device and a range hood comprising the same, the locking device is used for fixing an oil cup on a range hood main body of the range hood, the locking device comprises a first locking piece and a second locking piece, the first locking piece comprises a first locking part, the first locking part comprises a sliding unit and a limiting unit, in the process that the locking device is switched from the unlocking state to the locking state, the second locking part is pressed for the first time, so that the sliding unit slides relative to the limiting unit in the locking direction until the sliding unit slides to the locking position, and the second locking part is locked on the sliding unit; in the process that the locking device is switched from the locking state to the unlocking state, the second locking part is pressed for the second time, so that the second locking part can be separated from the sliding unit; the range hood comprises the locking device. The locking device is convenient and reliable to operate, the situation that alignment is not easy to achieve does not exist, and in addition, locking is conducted in a pressing mode, so that the locking device is not prone to deformation.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a locking device and a range hood comprising the same. Background Art

[0002] As a kitchen appliance, a range hood can quickly exhaust cooking fumes, purifying the kitchen environment. An oil cup is installed at the bottom of the range hood to collect oil droplets produced during operation. Once the oil cup is filled with liquid, the user removes the cup from the range hood, pours out the liquid, and then reattaches it to the range hood to continue collecting oil droplets.

[0003] The locking device commonly used in range hoods in the existing technology to fix the oil cup includes an oil cup bracket, an oil cup card and an oil cup buckle sheet metal piece. The oil cup buckle sheet metal pieces on the left and right ends are inserted into the slots of the bracket and the card, and the oil cup card holds the oil cup to fix it.

[0004] The oil cup is mounted on the bottom of the range hood body via an oil cup bracket, a common structure used in existing range hood oil cup mounting systems. However, to ensure the integrity of the range hood, the reserved slot is small, making it difficult for users to align the oil cup when removing and installing it. Furthermore, the metal plate that holds the oil cup is easily deformed, resulting in malfunction. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art that, in order to ensure the integrity of the range hood, the reserved slot is small, which makes it difficult for the user to align the oil cup when disassembling and assembling it, and the oil cup buckle sheet metal is easily deformed, resulting in functional failure. A locking device and a range hood comprising the same are provided.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A locking device is used to fix the oil cup on the range hood body of the range hood. The locking device includes a first locking member and a second locking member. The first locking member is used to be set on the range hood body, and the second locking member is used to be set on the oil cup.

[0008] The first locking member includes a first locking portion, the first locking portion includes a sliding unit and a limiting unit, the sliding unit can slide relative to the limiting unit, and the limiting unit can limit the sliding position of the sliding unit, and the second locking member has a second locking portion;

[0009] In the process of switching the locking device from the unlocked state to the locked state, the second locking portion is pressed for the first time to contact the sliding unit, causing the sliding unit to slide relative to the limiting unit in the locking direction until it slides to the locked position. When the sliding unit is in the locked position, the second locking portion is locked on the sliding unit.

[0010] During the process of switching the locking device from the locked state to the unlocked state, the second locking portion is pressed for the second time, causing the sliding unit to move relative to the limiting unit from the locked position in the unlocking direction, and allowing the second locking portion to separate from the sliding unit;

[0011] The locking direction is opposite to the unlocking direction.

[0012] In this solution, the sliding unit can slide relative to the limiting unit, and the limiting unit can limit the sliding position of the sliding unit. This arrangement ensures that the position of the sliding unit is within a certain area and will not slide infinitely. In the process of switching the locking device from the unlocked state to the locked state, it is only necessary to press the second locking part, and the second locking part is locked on the sliding unit. In addition, in the process of switching the locking device from the locked state to the unlocked state, it is only necessary to press the second locking part, and the second locking part can be separated from the sliding unit. That is to say, this locking mechanism can achieve the functions of unlocking and locking by only pressing twice. The operation is convenient and reliable, and there is no situation where alignment is difficult. In addition, locking by pressing is not easy to cause the locking device to deform.

[0013] Preferably, the sliding unit includes a slider and a limiting portion, and along the locking direction, the slider has a first end and a second end;

[0014] The limiting portion extends outward from the second end of the slider, and is used to lock the second locking portion when the slider moves to the locking position.

[0015] In this solution, the setting of the slider and the limiting part makes it possible for the sliding unit to not interfere with each other when sliding and locking the second locking part. That is to say, when the limiting part locks the second locking part, it does not affect the sliding of the slider. Although the slider has moved to the locked position, the slider can still move a certain distance in the locking direction to maximize the adaptation to second locking parts of different specifications. In addition, it can also provide movement space for pressing the second locking part for the second time when unlocking.

[0016] Preferably, the limiting unit includes an elastic member and a limiting block; the elastic member, the limiting block and the limiting portion are located on one side of the second end of the slider, and the limiting block is located between the elastic member and the limiting portion, one end of the elastic member is connected to the slider, and the other end is fixed;

[0017] When the locking device is in the locked state, the limiting portion abuts against the limiting position of the limiting block at one end close to the second end of the slider, and the second locking portion is limited by the limiting portion. The slider is in the locked position due to the elastic force of the elastic member and the resistance of the limiting block.

[0018] When the locking device is in the unlocked state, the limiting portion leaves the limiting position, and the second locking portion is separated from the limiting portion.

[0019] In this solution, the setting of the limit block offsets the elastic force exerted on the slider and the limit part abuts against the limit position in the limit block. In the above locking method, the elastic member and the slider are elastically connected, and the limit block and the limit part are rigidly connected, so that the locking device is firmly locked and will not suddenly collapse due to the presence of the elastic member, which is safe and reliable. In addition, the limit block is located between the elastic member and the limit part, with a compact structure and concentrated force, which makes it have strong pressure resistance and is not easy to shake when subjected to slight external force.

[0020] Preferably, the second locking portion includes a plate body, and a first connecting portion, a raised portion, a second connecting portion, and a pressing portion are sequentially provided on a side of the plate body facing the first locking portion along a locking direction. The raised portion extends from the first connecting portion and the second connecting portion toward the first locking portion, and a step portion is formed between the first connecting portion and the raised portion.

[0021] In the process of switching the locking device from the unlocked state to the locked state, the pressing portion is used to press on the sliding unit, and the second connecting portion is used to fit with the outer wall surface of the limiting portion;

[0022] The end of the limiting portion is provided with a limiting protrusion adapted to the step portion. When the locking device is in a locked state, the limiting protrusion and the step portion are adapted to each other through engagement.

[0023] In this solution, the second locking portion has only one plate body, and different functional parts are formed on the plate body. It can be assembled with the first locking portion without other components, which has a simple structure and low cost. In addition, in the process of switching the locking device from the unlocked state to the locked state, the pressing portion is used to press on the sliding unit, and the second connecting portion is used to fit with the outer wall surface of the limiting portion. The above-mentioned arrangement makes it possible for the second locking portion to increase the contact area with the sliding unit while pressing the sliding unit, making the locking device more secure. When the locking device is in the locked state, the limiting protrusion and the step portion are adapted to each other through card engagement, so that the card engagement surface is increased, and the increased card engagement area further makes the locking device secure and reliable. In addition, in the locked state, the closer the second connecting portion fits with the outer wall surface of the limiting portion, the deeper and more secure the card engagement between the limiting protrusion and the step portion, and the arrangement of the step portion is also conducive to weight reduction.

[0024] Preferably, the limiting portion further comprises a limiting body, a first end of the limiting body being connected to the second end of the slider, a limiting protrusion being provided at the second end of the limiting body, and the limiting body and the limiting protrusion forming an L-shaped structure;

[0025] When the locking device switches from the unlocked state to the locked state, the second connecting portion is used to fit with the outer wall surface of the limiting body.

[0026] In this solution, the limiting body and the limiting protrusion form an L-shaped structure; the limiting portion of the L-shaped structure is more reliable.

[0027] Preferably, the limiting portion further comprises an abutting unit, and the abutting unit extends from the limiting body toward the limiting block;

[0028] The limiting block has a first groove on one side facing the limiting portion, and the depth of the first groove gradually increases from the end of the limiting block close to the second end of the slider to the end away from the second end of the slider.

[0029] Wherein, in the locked state, the abutting unit abuts against the limiting position in the first groove, and in the unlocked state, the abutting unit leaves the limiting position and is located in the first groove.

[0030] In this solution, the depth of the first groove gradually increases from the end of the limit block close to the second end of the slider to the end away from the second end of the slider. The above setting ensures that when in the unlocked state, the sliding unit can only make the abutment unit leave the limit position and be located in the first groove when it is subjected to sufficient force. Otherwise, the limit unit can only be in the limit position. This can prevent the locking device from being subjected to slight external force, which will cause the abutment unit to be located in the first groove (that is, the unlocked state), which is not conducive to the operation of the locking device.

[0031] Preferably, the feature is that the upper surface of the slider is provided with a second groove;

[0032] The range hood has a mounting surface for installing a second locking member, and the first locking part also includes a limiting steel wire, which has a fixed end and an extending end along the extension direction. The fixed end is fixed on the mounting surface, and the extending end moves in the second groove to limit the distance between the sliding unit and the fixed end of the limiting steel wire.

[0033] In this solution, the limiting steel wire is provided to fix the second locking member (in the locked state and the unlocked state) on the mounting surface, and the second groove is provided to maximize the non-restriction of the movement of the sliding unit so that the mounting surface and the sliding unit are movably connected.

[0034] Preferably, the second groove includes a first chute, a second chute and a third chute, and the first chute is connected between the second chute and the third chute;

[0035] The first chute has a limit point in it. When the extended end of the limit wire moves to the limit point, the sliding unit is allowed to slide. The depth of the first chute is shallower than that of the third chute, so as to limit the extended end of the limit wire from moving from an end of the first chute adjacent to the third chute to the third chute.

[0036] A protrusion is provided in the second chute, and the protrusion is used to abut against the limiting steel wire to limit the movement of the slider unit. The height of the protrusion gradually decreases along the direction in which the extended end of the limiting steel wire moves in the second chute;

[0037] In the process of switching the locking device from the locked state to the unlocked state, the sliding unit slides away from the fixed end in the unlocking direction, and the extended end of the limiting steel wire slides from the second sliding groove to the third sliding groove to approach the fixed end;

[0038] When the locking device switches from the unlocked state to the locked state, the sliding unit slides toward the fixed end along the locking direction, and the extended end of the limiting steel wire slides from the initial position in the first sliding groove to the second sliding groove until it slides to the limit point, and can move from the limit point to the locking point on the protrusion under the action of the tension of the elastic member;

[0039] When the extended end of the limiting steel wire is at the locking point, the sliding unit is in the locked position and the locking device is in the locked state;

[0040] When the locking device is in the unlocked state, the extended end of the limiting steel wire is located at an initial position in the first sliding groove.

[0041] In this solution, a limit point is provided in the first slide groove so that the sliding unit can move to the deepest point of one end of the fixed end of the limit steel wire installed on the mounting surface; the depth of the first slide groove is shallower than the depth of the third slide groove to prevent the limit steel wire from entering the first slide groove during the unlocking process, and when locking again, the limit steel wire will not easily enter the limit point of the first slide groove; the height of the protrusion gradually decreases along the direction of movement of the extended end of the limit steel wire in the second slide groove. Such a setting is conducive to adapting to the elastic force of the elastic part in different locking states (that is, adapting to different locking positions), and the locking position can be flexibly adjusted by the position of the limit steel wire on the protrusion.

[0042] Preferably, the first locking portion further includes a guide rail, which is provided on the lower surface of the sliding unit and is used for the sliding unit to slide.

[0043] In this solution, the provision of the guide rail facilitates the sliding of the sliding unit.

[0044] The utility model also provides a range hood, which comprises a range hood body, an oil cup and the above locking device; both sides of one end of the oil cup are provided with a locking device.

[0045] The positive progressive effect of the present invention is that: during the process of switching the locking device from the unlocked state to the locked state, it is only necessary to press the second locking part, and the second locking part is locked on the sliding unit. In addition, during the process of switching the locking device from the locked state to the unlocked state, it is only necessary to press the second locking part, and the second locking part can be separated from the sliding unit. That is to say, the locking mechanism can achieve the functions of unlocking and locking by only two presses, and the operation is convenient and reliable, and there is no situation where alignment is difficult. In addition, locking by pressing is not easy to cause the locking device to be deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a structural diagram of a range hood according to an embodiment of the present invention.

[0047] Figure 2 This is a structural diagram of the first locking portion of an embodiment of the present utility model.

[0048] Figure 3 for Figure 2 A partial enlarged view of the second groove.

[0049] Figure 4 Schematic diagram of the structure of the second locking portion of an embodiment of the present invention.

[0050] Figure 5 for Figure 4 A partial enlarged view of .

[0051] Figure 6 This is a structural schematic diagram of a locking device in a locked state according to an embodiment of the present invention.

[0052] Description of reference numerals:

[0053] Locking device 1

[0054] First locking portion 11

[0055] Sliding unit 111

[0056] Slider 1111

[0057] Limiting portion 1112

[0058] Limiting protrusion 11121

[0059] Limit body 11122

[0060] Abutment unit 11123

[0061] Limit unit 112

[0062] Elastic member 1121

[0063] Limit block 1122

[0064] First groove 11221

[0065] Second locking portion 12

[0066] Plate 121

[0067] First connection portion 1211

[0068] Raised portion 1212

[0069] Second connection portion 1213

[0070] Pressing portion 1214

[0071] Second groove 113

[0072] First chute 1131

[0073] Limit point 11311

[0074] Second chute 1132

[0075] Bump 11321

[0076] The third chute 1133

[0077] Limit wire 114

[0078] Oil Cup 2

[0079] Range hood 3

[0080] Range hood body 31

[0081] Mounting surface 32 DETAILED DESCRIPTION

[0082] The present invention will be described more clearly and completely below with reference to a preferred embodiment and the accompanying drawings, but the present invention is not limited to the scope of the embodiment.

[0083] like Figures 1 to 6 As shown, a locking device 1 is used to fix the oil cup 2 on the range hood body 31 of the range hood 3. The locking device 1 includes a first locking member and a second locking member. The first locking member is used to be set on the range hood body 31, and the second locking member is used to be set on the oil cup 2. The first locking member includes a first locking portion 11, and the first locking portion 11 includes a sliding unit 111 and a limiting unit 112. The sliding unit 111 can slide relative to the limiting unit 112, and the limiting unit 112 can limit the sliding position of the sliding unit 111. The second locking member has a second locking portion 12; wherein, the process of switching the locking device 1 from the unlocked state to the locked state is as follows: In the process, the second locking portion 12 is pressed for the first time to contact the sliding unit 111, so that the sliding unit 111 slides along the locking direction relative to the limiting unit 112 until it slides to the locking position. When the sliding unit 111 is in the locking position, the second locking portion 12 is locked on the sliding unit 111; in the process of the locking device 1 switching from the locked state to the unlocked state, the second locking portion 12 is pressed for the second time, so that the sliding unit 111 moves along the unlocking direction from the locked position relative to the limiting unit 112, and the second locking portion 12 can be separated from the sliding unit 111; wherein, the locking direction is opposite to the unlocking direction.

[0084] In this embodiment, the sliding unit 111 can slide relative to the limiting unit 112, and the limiting unit 112 can limit the sliding position of the sliding unit 111. This arrangement ensures that the position of the sliding unit 111 is within a certain area and will not slide infinitely. In the process of switching the locking device 1 from the unlocked state to the locked state, it is only necessary to press the second locking part 12, and the second locking part 12 is locked on the sliding unit 111. In addition, in the process of switching the locking device 1 from the locked state to the unlocked state, it is only necessary to press the second locking part 12, and the second locking part 12 can be separated from the sliding unit 111. That is to say, this locking mechanism can achieve the functions of unlocking and locking by only pressing twice. The operation is convenient and reliable, and there is no situation where alignment is difficult. In addition, locking by pressing is not easy to cause the locking device 1 to deform.

[0085] It should be noted that, during the process of the locking device 1 switching from the unlocked state to the locked state, the external force presses the end of the oil cup 2 that is not provided with the second locking part, and the end of the oil cup 2 that is provided with the second locking part moves toward the first locking part on the range hood body 31 and is locked with the first locking part. In addition, the oil cup 2 is preferably locked at the lower end of the range hood body 31 to receive the oil smoke generated by the range hood.

[0086] Open Figures 2 to 6 It is understood that the sliding unit 111 includes a slider 1111 and a limiting portion 1112. Along the locking direction, the slider 1111 has a first end and a second end; the limiting portion 1112 extends outward from the second end of the slider 1111, and the limiting portion 1112 is used to lock the second locking portion 12 when the slider 1111 moves to the locking position.

[0087] In this embodiment, the setting of the slider 1111 and the limiting portion 1112 ensures that the sliding unit 111 does not interfere with each other when sliding and locking the second locking portion 12. That is, when the limiting portion 1112 locks the second locking portion 12, it does not affect the sliding of the slider 1111. Although the slider 1111 has moved to the locked position, the slider 1111 can still move a certain distance in the locking direction to maximize the adaptation to second locking portions 12 of different specifications. In addition, when unlocking, it can provide movement space for pressing the second locking portion 12 for the second time.

[0088] It should be noted that the limiting portion 1112 does not slide itself, but slides along with the sliding block 1111 , and the limiting portion 1112 locks the second locking portion 12 by locking a part of the second locking portion 12 .

[0089] Open Figure 2 and Figure 6It is understood that the limiting unit 112 includes an elastic member 1121 and a limiting block 1122; the elastic member 1121, the limiting block 1122 and the limiting portion 1112 are located on one side of the second end of the slider 1111, and the limiting block 1122 is located between the elastic member 1121 and the limiting portion 1112, one end of the elastic member 1121 is connected to the slider 1111, and the other end is fixed; wherein, when the locking device 1 is in the locked state, the limiting portion 1112 abuts against the limiting position of one end of the limiting block 1122 close to the second end of the slider 1111, and the second locking portion 12 is limited by the limiting portion 1112, and the slider 1111 is in the locked position due to the elastic force of the elastic member 1121 and the resistance of the limiting block 1122; when the locking device 1 is in the unlocked state, the limiting portion 1112 leaves the limiting position, and the second locking portion 12 is separated from the limiting portion 1112.

[0090] In this embodiment, the setting of the limit block 1122 offsets the elastic force exerted on the slider 1111 and the limit portion 1112 abuts against the limit position in the limit block 1122. In the above locking method, the elastic member 1121 and the slider 1111 are elastically connected, and the limit block 1122 and the limit portion 1112 are rigidly connected, so that the locking device 1 is firmly locked and will not suddenly collapse due to the presence of the elastic member 1121, which is safe and reliable; in addition, the limit block 1122 is located between the elastic member 1121 and the limit portion 1112, with a compact structure and concentrated force, so that it has strong pressure resistance and is not easily shaken by slight external force.

[0091] It should be noted that one end of the elastic member 1121 is sleeved on the connecting column of the slider 1111 through a ring, and the other end of the elastic member 1121 is also sleeved on the connecting column of the range hood body 31 through a ring, which is convenient for the installation and removal of the elastic member 1121.

[0092] Open Figures 4 to 6 It is understood that the second locking portion 12 includes a plate body 121, and the plate body 121 is provided with a first connecting portion 1211, a protrusion 11321 portion 1212, a second connecting portion 1213 and a pressing portion 1214 in sequence along the locking direction toward the side of the first locking portion 11, the protrusion 1212 extends from the first connecting portion 1211 and the second connecting portion 1213 toward the direction close to the first locking portion 11, and the first connecting portion 1211 and the protrusion 1212 form a step portion; wherein, in the process of switching the locking device 1 from the unlocked state to the locked state, the pressing portion 1214 is used to press on the sliding unit 111, and the second connecting portion 1213 is used to fit with the outer wall surface of the limiting portion 1112; the end of the limiting portion 1112 has a limiting protrusion 11121 for matching with the step portion, and when the locking device 1 is in the locked state, the limiting protrusion 11121 is matched with the step portion through engagement.

[0093] In this embodiment, the second locking portion 12 has only one plate body 121, on which different functional parts are formed, and it can be assembled with the first locking portion 11 without other components, which has a simple structure and low cost. In addition, when the locking device 1 switches from the unlocked state to the locked state, the pressing portion 1214 is used to press on the sliding unit 111, and the second connecting portion 1213 is used to fit with the outer wall surface of the limiting portion 1112. The above-mentioned arrangement makes it possible for the second locking portion 12 to increase the contact area with the sliding unit 111 while pressing the sliding unit 111. Make the locking device 1 more secure; when the locking device 1 is in the locked state, the limiting protrusion 11121 and the step portion are adapted through engagement, so that the engagement surface is increased, and the increased engagement area further makes the locking device 1 secure and reliable; in addition, in the locked state, the second connecting portion 1213 fits more closely with the outer wall surface of the limiting portion 1112, the limiting protrusion 11121 and the step portion are engaged deeper and more securely, and the setting of the step portion is also conducive to weight reduction.

[0094] It should be noted that the height of the limiting protrusion 11121 is preferably higher than the height of the step portion to help improve the limiting strength.

[0095] Open Figure 2 and Figure 6 It is understood that the limiting portion 1112 further includes a limiting body 11122 , a first end of the limiting body 11122 being connected to the second end of the slider 1111 , a limiting protrusion 11121 being disposed at the second end of the limiting body 11122 , and the limiting body 11122 and the limiting protrusion 11121 forming an L-shaped structure;

[0096] When the locking device 1 switches from the unlocked state to the locked state, the second connecting portion 1213 is adapted to fit against the outer wall of the limiting body 11122 .

[0097] In this embodiment, the limiting body 11122 and the limiting protrusion 11121 form an L-shaped structure; the limiting portion 1112 of the L-shaped structure is more secure.

[0098] It should be noted that the limiting body 11122 is used to place the step portion, so the length of the limiting body 11122 must be greater than the length of the step portion.

[0099] Open Figures 2 to 6It is understood that the limiting portion 1112 also has an abutment unit 11123, which extends from the limiting body 11122 toward the limiting block 1122; the limiting block 1122 has a first groove 11221 on the side facing the limiting portion 1112, and the depth of the first groove 11221 gradually increases from the end of the limiting block 1122 close to the second end of the slider 1111 to the end away from the second end of the slider 1111, wherein, in the locked state, the abutment unit 11123 abuts against the limiting position in the first groove 11221, and in the unlocked state, the abutment unit 11123 leaves the limiting position and is located in the first groove 11221.

[0100] In this embodiment, the depth of the first groove 11221 gradually increases from the end of the limiting block 1122 close to the second end of the slider 1111 to the end away from the second end of the slider 1111. The above arrangement enables, when in the unlocked state, the sliding unit 111 can only make the abutment unit 11123 leave the limiting position and be located in the first groove 11221 when subjected to sufficient force. Otherwise, the limiting unit 112 can only be in the limiting position. This can prevent the locking device 1 from being subjected to slight external force, which will cause the abutment unit 11123 to be located in the first groove 11221 (that is, the unlocked state), which is not conducive to the operation of the locking device 1.

[0101] It should be noted that, in the process of switching the locking device 1 from the unlocked state to the locked state, the abutment unit 11123 passes through the limit block 1122 and reaches the limit position of the limit block 1122 and is limited. This requires the pressing force to be tilted toward the limit position to achieve the above-mentioned effect. This inclined pressing force can be manually adjusted by a person, or a component that can achieve the effect of tilting the pressing force can be added. Similarly, in the process of switching the locking device 1 from the locked state to the unlocked state, the pressing force needs to be tilted in the direction away from the limit position.

[0102] Open Figures 2 to 3 and Figure 6 It is understood that the upper surface of the slider 1111 is provided with a second groove 113; the range hood 3 has a mounting surface 32 for mounting a second locking member, and the first locking portion 11 also includes a limiting steel wire 114, which has a fixed end and an extending end along the extension direction. The fixed end is fixed on the mounting surface 32, and the extending end moves in the second groove 113 to limit the distance between the sliding unit 111 and the fixed end of the limiting steel wire 114.

[0103] In this embodiment, the limiting steel wire 114 is provided to fix the second locking member (in the locked state and the unlocked state) on the mounting surface 32, and the second groove 113 is provided to maximize the non-restriction of the movement of the sliding unit 111, so that the mounting surface 32 and the sliding unit 111 are movably connected.

[0104] It should be noted that the extension section of the limiting steel wire 114 needs to extend into the second groove 113, but never contacts the bottom wall of the second groove 113 (is in a suspended state). Only during the movement of the sliding unit 111 will it abut against the inner side wall of the second groove 113 according to specific circumstances.

[0105] Open Figures 2 to 3 It is understood that the second groove 113 includes a first slide groove 1131, a second slide groove 1132 and a third slide groove 1133, and the first slide groove 1131 is connected between the second slide groove 1132 and the third slide groove 1133; the first slide groove 1131 has a limit point 11311, and the process of the extended end of the limit wire 114 moving to the limit point 11311 allows the sliding unit 111 to slide, and the depth of the first slide groove 1131 is greater than that of the third slide groove 1133. The depth is shallow to limit the extension end of the limiting wire 114 from moving from the end of the first slide groove 1131 adjacent to the third slide groove 1133 to the third slide groove 1133; a protrusion 11321 is provided in the second slide groove 1132, and the protrusion 11321 is used to abut the limiting wire 114 to limit the movement of the slider 1111 unit. The height of the protrusion 11321 gradually decreases along the direction in which the extension end of the limiting wire 114 moves in the second slide groove 1132; wherein, the locking device When the locking device 1 is in the unlocked state, the sliding unit 111 slides away from the fixed end in the unlocking direction, and the extended end of the limiting steel wire 114 slides from the second sliding groove 1132 to the third sliding groove 1133 to approach the fixed end; when the locking device 1 is in the unlocked state, the sliding unit 111 slides toward the fixed end in the locking direction, and the extended end of the limiting steel wire 114 slides from the initial position in the first sliding groove 1131 to the second sliding groove 1132 until it slides to the limit point 11311, and can move from the limit point 11311 to the locking point on the protrusion 1212 under the action of the tension of the elastic member 1121; wherein, when the extended end of the limiting steel wire 114 is at the locking point, the sliding unit 111 is in the locked position, and the locking device 1 is in the locked state; when the locking device 1 is in the unlocked state, the extended end of the limiting steel wire 114 is located at the initial position in the first sliding groove 1131.

[0106] In this embodiment, the setting of the limit point 11311 in the first slide groove 1131 allows the sliding unit 111 to move to the deepest point of one end of the fixed end of the limit wire 114 installed on the mounting surface 32; the depth of the first slide groove 1131 is shallower than the depth of the third slide groove 1133 to prevent the limit wire 114 from entering the first slide groove 1131 during the unlocking process, and when locking again, the limit wire 114 will not easily enter the limit point 11311 of the first slide groove 1131; the height of the protrusion 11321 gradually decreases along the direction of movement of the extending end of the limit wire 114 in the second slide groove 1132. Such a setting is conducive to adapting to the elastic force of the elastic member 1121 in different locking states (that is, adapting to different locking positions), and the locking position can be flexibly adjusted by the position of the limit wire 114 on the protrusion 11321.

[0107] It should be noted that the process of the extended end of the limiting wire 114 moving to the limiting point 11311 allows the sliding unit 111 to slide, but at this time the sliding unit 111 is at most flush with one end of the mounting surface 32 (that is, it will not exceed this end of the mounting surface 32); in addition, there is only one limiting point 11311, but there can be many locking points on the protrusion 11321, which is determined by the specific locking position of the locking device 1.

[0108] Open Figure 2 and Figure 6 It is understood that the first locking portion 11 further includes a guide rail, which is provided on the lower surface of the sliding unit 111 and is used for the sliding unit 111 to slide.

[0109] In this embodiment, the provision of the guide rail facilitates the sliding of the sliding unit 111 .

[0110] It should be noted that the guide rail can also be provided on the mounting surface 32 .

[0111] The unlocking process and locking process of the locking device 1 will be described below with reference to the accompanying drawings.

[0112] Figure 6The schematic diagram of the structure of the locking device 1 in the locked state is shown. When locking is required, the second locking portion 12 is pressed to make the second locking portion 12 move toward the first locking portion 11, and the pressing portion 1214 on the second locking portion 12 makes the first locking portion 11 move along the locked position. During the movement of the first locking portion 11, the elastic member 1121 gives the sliding unit 111 a force opposite to the movement, and the abutting unit 11123 of the first locking portion 11 abuts against the limiting position of the limit block 1122, and the step portion of the second locking portion 12 is adapted to the limiting protrusion 11121 of the first locking portion 11 through engagement, that is, the second locking portion 12 is locked on the first locking portion 11. The first locking portion 11 is locked in the position due to the elastic member 1121 and the limit block 1122, and the locking device 1 is in the locked state.

[0113] Correspondingly, when unlocking is required, the second locking part 12 is pressed again, and the abutment unit 11123 of the first locking part 11 will leave the limiting position of the limiting block 1122, and the step portion of the second locking part 12 will be separated from the limiting protrusion 11121 of the first locking part 11, that is, the second locking part 12 will be separated from the first locking part 11, and the first locking part 11 will leave the locking position due to the elastic force of the elastic part 1121, and the locking device 1 will be in an unlocked state.

[0114] refer to Figure 1 It is understood that the present invention further provides a range hood 3, which includes a range hood body 31, an oil cup 2 and the above locking device 1; both sides of one end of the oil cup 2 are provided with a locking device 1.

[0115] In summary, in the locking device 1 provided in this embodiment: during the process of switching the locking device 1 from the unlocked state to the locked state, it is only necessary to press the second locking part 12, and the second locking part 12 is locked on the sliding unit 111. In addition, during the process of switching the locking device 1 from the locked state to the unlocked state, it is only necessary to press the second locking part 12, and the second locking part 12 can be separated from the sliding unit 111. That is to say, this locking mechanism can achieve the functions of unlocking and locking by only pressing twice, and the operation is convenient and reliable, and there is no situation where alignment is difficult. In addition, locking by pressing is not easy to cause the locking device 1 to be deformed.

[0116] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or position relationship of the device or component during normal use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation at any time. Therefore, they should not be understood as limiting the present invention in this regard.

[0117] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A locking device for fixing an oil cup on a range hood body 31 of a range hood, the locking device comprising a first locking member and a second locking member, the first locking member being arranged on the range hood body 31, the second locking member being arranged on the oil cup, characterized in that: The first locking member includes a first locking portion, the first locking portion includes a sliding unit and a limiting unit, the sliding unit is capable of sliding relative to the limiting unit, and the limiting unit is capable of limiting the sliding position of the sliding unit, and the second locking member has a second locking portion; In the process of switching the locking device from the unlocked state to the locked state, the second locking portion is pressed for the first time to contact the sliding unit, so that the sliding unit slides along the locking direction relative to the limiting unit until it slides to the locked position. When the sliding unit is in the locked position, the second locking portion is locked on the sliding unit. During the process of switching the locking device from the locked state to the unlocked state, the second locking portion is pressed for the second time, so that the sliding unit moves from the locked position in the unlocking direction relative to the limiting unit, and the second locking portion can be separated from the sliding unit; Wherein, the locking direction is opposite to the unlocking direction.

2. The locking device according to claim 1, wherein: The sliding unit includes a slider and a limiting portion, and along the locking direction, the slider has a first end and a second end; The limiting portion extends outward from the second end of the slider, and is used to lock the second locking portion when the slider moves to the locking position.

3. The locking device according to claim 2, wherein: The limiting unit includes an elastic member and a limiting block; the elastic member, the limiting block and the limiting portion are located on one side of the second end of the slider, and the limiting block is located between the elastic member and the limiting portion, one end of the elastic member is connected to the slider, and the other end is fixed; When the locking device is in a locked state, the limiting portion abuts against a limiting position of an end of the limiting block close to the second end of the slider, and the second locking portion is limited by the limiting portion. The slider is in the locked position due to the elastic force of the elastic member and the resistance of the limiting block. When the locking device is in the unlocked state, the limiting portion leaves the limiting position, and the second locking portion is separated from the limiting portion.

4. The locking device according to claim 3, wherein: The second locking portion includes a plate body, and a first connecting portion, a raised portion, a second connecting portion, and a pressing portion are sequentially provided on a side of the plate body facing the first locking portion along the locking direction. The raised portion extends from the first connecting portion and the second connecting portion toward the first locking portion, and a step is formed between the first connecting portion and the raised portion. Wherein, when the locking device switches from the unlocked state to the locked state, the pressing portion is used to press on the sliding unit, and the second connecting portion is used to fit with the outer wall surface of the limiting portion; The end of the limiting portion has a limiting protrusion adapted to match the step portion. When the locking device is in the locking state, the limiting protrusion and the step portion are adapted to each other through engagement.

5. The locking device according to claim 4, wherein: The limiting portion further comprises a limiting body, a first end of the limiting body being connected to the second end of the slider, the limiting protrusion being arranged at the second end of the limiting body, and the limiting body and the limiting protrusion forming an L-shaped structure; During the process of the locking device switching from the unlocked state to the locked state, the second connecting portion is used to fit with the outer wall surface of the limiting body.

6. The locking device according to claim 5, wherein: The limiting portion further comprises an abutting unit, and the abutting unit extends from the limiting body toward the limiting block; The limiting block has a first groove on one side facing the limiting portion, and the depth of the first groove gradually increases from the end of the limiting block close to the second end of the slider to the end away from the second end of the slider. Wherein, in the locked state, the abutting unit abuts against the limiting position in the first groove, and in the unlocked state, the abutting unit leaves the limiting position and is located in the first groove.

7. The locking device according to claim 4, wherein: The upper surface of the slider is provided with a second groove; The range hood has a mounting surface for mounting the second locking member, and the first locking portion also includes a limiting steel wire, which has a fixed end and an extending end along the extension direction, the fixed end is fixed on the mounting surface, and the extending end moves in the second groove to limit the distance between the sliding unit and the fixed end of the limiting steel wire.

8. The locking device according to claim 7, wherein: The second groove includes a first slide groove, a second slide groove and a third slide groove, and the first slide groove is connected between the second slide groove and the third slide groove; The first chute has a limit point in it, and the sliding unit is allowed to slide when the extended end of the limit steel wire moves to the limit point, and the depth of the first chute is shallower than that of the third chute, so as to limit the extended end of the limit steel wire from moving from an end of the first chute adjacent to the third chute to the third chute; A protrusion is provided in the second chute, and the protrusion is used to abut against the limiting steel wire to limit the movement of the slider unit. The height of the protrusion gradually decreases along the direction in which the extending end of the limiting steel wire moves in the second chute; Wherein, when the locking device switches from the locked state to the unlocked state, the sliding unit slides away from the fixed end along the unlocking direction, and the extending end of the limiting steel wire slides from the second sliding groove to the third sliding groove to approach the fixed end; When the locking device switches from the unlocked state to the locked state, the sliding unit slides along the locking direction toward the fixed end, and the extended end of the limiting steel wire slides from the initial position in the first sliding groove to the second sliding groove until it slides to the limiting point, and can move from the limiting point to the locking point on the protruding portion under the action of the tension of the elastic member; Wherein, when the extending end of the limiting steel wire is at the locking point, the sliding unit is at the locking position, and the locking device is in a locked state; When the locking device is in the unlocked state, the extending end of the limiting steel wire is located at an initial position in the first sliding groove.

9. The locking device according to any one of claims 1 to 8, characterized in that: The first locking portion further includes a guide rail, which is provided on the lower surface of the sliding unit and is used for the sliding unit to slide.

10. A range hood, characterized in that: The range hood comprises a range hood body, an oil cup and a locking device according to any one of claims 1 to 9; the locking device is provided on both sides of one end of the oil cup.

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