Exhaust fume collecting hood

Abstract

The utility model discloses an exhaust fume collecting hood which comprises a shell, an oil screen and at least one connecting device, the shell is provided with an exhaust fume collecting opening, the oil screen is detachably installed on the exhaust fume collecting opening, the connecting device comprises a locking component and a locking matching part, one of the locking component and the locking matching part is arranged on the shell, and the other one of the locking component and the locking matching part is arranged on the oil screen; the locking component is provided with a first position which is limited relative to the locking matching part and a second position which moves relative to the locking matching part, and the operating piece is at least used for switching the locking component from the first position to the second position. The exhaust fume collecting hood can be disassembled and assembled without a tool, the operation is convenient, the connection reliability is high, and the oil screen is not easy to separate in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a smoke collecting hood. Background Art

[0002] The oil net is the main functional component of the fume purifier on the fume hood. After cooking, a large amount of oil stains are easily attached to it, and it needs to be cleaned frequently. In order to facilitate the cleaning of the oil net, the prior art uses a detachable connection method to connect the oil net to the housing.

[0003] The existing detachable methods use magnetic suction or structures that require tools such as bolts for disassembly. The magnetic suction connection method is easy to disassemble, but the oil net is prone to detachment during transportation, affecting product quality. Structures such as bolts that require tools for disassembly require tools for disassembly and assembly, which is inconvenient to operate. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a fume hood, which can be disassembled and assembled without the aid of tools, is easy to operate, has high connection reliability, and is not easy to be separated from the oil net during transportation.

[0005] According to the embodiment of the utility model, the smoke hood includes a shell, an oil net and at least one connecting device, the shell has a smoke collecting port, the oil net is detachably installed on the smoke collecting port, the connecting device includes a locking component and a locking matching part, one of the locking component and the locking matching part is arranged on the shell, and the other is arranged on the oil net; the locking component has a first position relative to the locking matching part and a second position relatively movable with the locking matching part, and the connecting device also includes an operating member, which is at least used to switch the locking component from the first position to the second position.

[0006] According to the smoke hood of the utility model, at least one connecting device is provided, and the locking component and the locking matching part of the connecting device are respectively provided on the shell and the oil net, and the operating member switches the locking component from at least a first position where it is relatively limited with the locking matching part to a second position where it is relatively movable with the locking matching part, so that the shell and the oil net can be separated from each other, and the oil net can be easily removed from the shell without the aid of tools, and the operation is convenient; and when the locking component is in the first position, the connection reliability between the oil net and the shell is high, and the oil net is not easy to fall off during transportation.

[0007] According to some embodiments of the present invention, the operating member drives the locking component to move in translation so as to switch from the first position to the second position.

[0008] According to some embodiments of the utility model, the locking component switches from a first position to a second position along a first direction, and the moving direction of the operating member is a second direction perpendicular to the first direction; at least one of the operating member and the locking component has a first inclined surface, so that the operating member drives the locking component to move linearly through the first inclined surface.

[0009] According to some embodiments of the utility model, the connection device includes a connection body connected to the oil net, the connection body is provided with a first hole along a first direction, and the first hole forms a locking fitting portion. By providing the first hole along the first direction on the connection body, a locking fitting portion is formed to cooperate with the locking component.

[0010] According to some embodiments of the utility model, the connecting body includes a shell body and a bottom plate that are detachably connected, a first hole is formed between the shell body and the bottom plate, the shell body has a second hole penetrating along the second direction, the second hole is connected to the first hole, the bottom plate is connected to one end of the second hole, the operating piece is passed through the second hole, and one end is limitedly matched with the first hole.

[0011] According to some embodiments of the present invention, one of the shell body and the bottom plate is provided with at least one card slot, and the other is provided with at least one buckle that cooperates with the card slot.

[0012] According to some embodiments of the present invention, the operating member and the connecting body are elastically matched through a first elastic member, so that the operating member has a tendency to return to its original position.

[0013] According to some embodiments of the utility model, the operating member and the connecting body form a first guide groove, the operating member or the connecting body is provided with a pressing portion, the pressing portion movably cooperates with the first guide groove along the second direction, and the first elastic member presses between the pressing portion and the first guide groove along the second direction.

[0014] According to some embodiments of the utility model, the second hole is a stepped hole near one end of the bottom plate, the stepped hole, the bottom plate and the operating member form a first guide groove, and the pressing portion is arranged on the operating member; or, the operating member is provided with a groove, the groove and the side wall of the second hole form a first guide groove, and the pressing portion is arranged on the connecting body.

[0015] According to some embodiments of the utility model, the connecting device also includes a base connected to the shell, and the locking component and the base are elastically matched through a second elastic member so that the locking component has a tendency to switch from the second position to the first position.

[0016] According to some embodiments of the present invention, the base is provided with a second guide groove along the first direction, and the second elastic member is installed in the second guide groove.

[0017] According to some embodiments of the utility model, a first inclined surface is provided on the operating member, and the connecting body is provided with a second inclined surface and a third inclined surface, the second inclined surface is used to fit with the first inclined surface when the operating member drives the locking member to switch from the first position to the second position, and the third inclined surface is used to cooperate with the locking member so that the locking member moves from the outside of the locking cooperation part to the first position.

[0018] According to some embodiments of the present invention, the connecting body is further provided with a fourth inclined surface, and the fourth inclined surface is used to drive and cooperate with the locking component to move the locking component from the first position to the outside of the locking cooperation portion.

[0019] According to some embodiments of the present invention, the locking fitting portion is provided with a stop plane parallel to the first direction so as to stop fit with the locking component at the first position.

[0020] According to some embodiments of the utility model, one of the housing and the oil net is provided with at least one fixing foot, and the other is provided with at least one fixing groove matched with the fixing foot.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a smoke collecting hood according to an embodiment of the utility model at one angle;

[0023] Figure 2 This is a structural schematic diagram of a smoke collecting hood according to an embodiment of the utility model from another angle;

[0024] Figure 3 is a partial cross-sectional view of a smoke collecting hood according to an embodiment of the utility model;

[0025] Figure 4 is a cross-sectional view of a locking component in a connecting device according to an embodiment of the utility model in a first position;

[0026] Figure 5 is a cross-sectional view of a locking component in a connecting device according to an embodiment of the utility model in a second position;

[0027] Figure 6 is a cross-sectional view of the connecting device according to an embodiment of the utility model at another angle;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the shell body according to an embodiment of the utility model;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the bottom plate according to an embodiment of the utility model;

[0030] Fig. 9 is a schematic diagram of the three-dimensional structure of an operating member according to an embodiment of the utility model;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the base according to an embodiment of the utility model;

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the locking component according to an embodiment of the utility model.

[0033] Reference numerals:

[0034] Fume hood 100,

[0035] Housing 10, smoke collecting port 10a, fixing slot 10b,

[0036] Oil screen 20, fixed foot 20a,

[0037] Connecting device 30,

[0038] Connecting body 31, locking fitting portion 31a, first guide groove 31b, shell body 311, second hole 311a, buckle 311b, step hole 311c, bottom plate 312, slot 312a, first guide column 312b, second inclined surface 312c, third inclined surface 312d, stop plane 312e, fourth inclined surface 312f,

[0039] The locking component 32, the first limiting portion 32a, the second guide column 32b,

[0040] The operating member 33, the first inclined surface 33a, the pressing portion 33b,

[0041] The first elastic member 34 , the base 35 , the second limiting portion 35 a , the second guide groove 35 b , and the second elastic member 36 . DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0044] The smoke collecting hood 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] Reference Figure 1-Figure 5 According to the smoke hood 100 of the embodiment of the utility model, it includes a shell 10, an oil net 20 and at least one connecting device 30, the shell 10 has a smoke collecting port 10a, the oil net 20 is detachably installed on the smoke collecting port 10a, the connecting device 30 includes a locking component 32 and a locking matching portion 31a, one of the locking component 32 and the locking matching portion 31a is arranged on the shell 10, and the other is arranged on the oil net 20; the locking component 32 has a first position relative to the locking matching portion 31a, and a second position relatively active with the locking matching portion 31a, the connecting device 30 also includes an operating member 33, the operating member 33 is at least used to switch the locking component 32 from the first position to the second position.

[0046] Specifically, refer to Figure 1-Figure 5 The smoke collecting hood 100 in the embodiment of the utility model comprises a housing 10, and the housing 10 has a smoke collecting port 10a, through which oil smoke can enter and be discharged through a flue connected to the housing 10. The oil net 20 is detachably mounted on the smoke collecting port 10a, and can catch part of the oil gas and water vapor in the oil smoke, and reduce the oil droplets remaining in the turbine, the inner wall of the smoke machine, and the smoke pipe. The oil net 20 is detachably connected to the smoke collecting port 10a, which is convenient for disassembly and cleaning.

[0047] Reference Figure 3-Figure 5 The fume hood 100 includes at least one connecting device 30. Specifically, the connecting device 30 may be one, two, three, five, etc. The connecting device 30 includes a locking component 32 and a locking matching portion 31a. One of the locking component 32 and the locking matching portion 31a is disposed on the housing 10, and the other is disposed on the oil net 20. Specifically, the locking component 32 may be disposed on the housing 10, and the locking matching portion 31a is disposed on the oil net 20; or the locking component 32 may be disposed on the oil net 20, and the locking matching portion 31a is disposed on the housing 10. In the present application, the locking component 32 is disposed on the housing 10, and the locking matching portion 31a is disposed on the oil net 20.

[0048] Reference Figure 4 and Figure 5 The locking component 32 has a first position where it is relatively limited with the locking matching portion 31a, and a second position where it is relatively movable with the locking matching portion 31a. In the first position, the locking component 32 and the locking matching portion 31a can be locked with each other, or the locking component 32 and the oil net 20 or the housing 10 provided with the locking matching portion 31a can be relatively limited. In the second position, the locking component 32 and the locking matching portion 31a can be relatively movable, so that the oil net 20 and the housing 10 provided with the locking component 32 and the locking matching portion 31a can be installed and removed.

[0049] Reference Figure 4 and Figure 5 The connecting device 30 also includes an operating member 33, which is at least used to switch the locking member 32 from the first position to the second position. By operating the locking member 32 with the operating member 33, the locking member 32 and the locking matching portion 31a can move relative to each other, so that the oil net 20 and the housing 10 can be installed and disassembled easily without the aid of tools, and the operation is convenient. When the locking member 32 is in the first position, the connection reliability between the oil net 20 and the housing 10 is high, and the oil net 20 is not easy to be separated during transportation.

[0050] Therefore, refer to Figure 1-Figure 5 According to the smoke hood 100 of the present invention, at least one connecting device 30 is provided, and the locking component 32 and the locking matching portion 31a of the connecting device 30 are respectively provided on the shell 10 and the oil net 20, and the operating member 33 switches the locking component 32 from a first position limited relative to the locking matching portion 31a to a second position movable relative to the locking matching portion 31a, so that the shell 10 and the oil net 20 can be separated from each other, and the oil net 20 can be easily removed from the shell 10 without the aid of tools, and the operation is convenient; when the locking component 32 is in the first position, the connection reliability of the oil net 20 and the shell 10 is high, and the oil net 20 is not easy to be separated during transportation.

[0051] In some embodiments, the operating member 33 may also be used to switch the locking member 32 from the second position to the first position. For example, the operating member 33 and the locking member 32 may be connected to control the position of the locking member 32.

[0052] Reference Figure 4 and Figure 5 In some embodiments of the present invention, the operating member 33 drives the locking member 32 to move horizontally to switch from the first position to the second position. The operating member 33 drives the locking member 32 to move horizontally, thereby improving the stability of the locking member 32 switching from the first position to the second position.

[0053] Specifically, the operating member 33 can directly drive the locking component 32 to move in a translational manner, for example, the operating member 33 can cooperate with the locking component 32 in driving, or can indirectly drive the locking component 32 through a transmission member, for example, the operating member 33 can cooperate with the locking component 32 in driving.

[0054] Reference Figure 4 and Figure 5 In some embodiments of the present invention, the locking member 32 switches from the first position to the second position along the first direction, and the moving direction of the operating member 33 is the second direction perpendicular to the first direction; at least one of the operating member 33 and the locking member 32 has a first inclined surface 33a, so that the operating member 33 drives the locking member 32 to move in translation through the first inclined surface 33a. The operating member 33 facilitates driving the locking member 32, whose movement directions are perpendicular to each other, to move in translation through the first inclined surface 33a, so as to achieve switching from the first position to the second position.

[0055] Specifically, one of the operating member 33 and the locking member 32 may have a first inclined surface 33a, the first inclined surface 33a may be provided on the operating member 33 or the locking member 32, or both the operating member 33 and the locking member 32 may be provided with the first inclined surface 33a. In the present application, the first inclined surface 33a is provided on the operating member 33, and the locking member 32 is provided with a curved surface to cooperate with the first inclined surface 33a.

[0056] In some embodiments, the operating member 33 and the locking member 32 may be located on the oil net 20 and the housing 10 respectively, or both of them may be located on the oil net 20 or the housing 10 .

[0057] In some embodiments, the operating member 33 and the locking member 32 can be coupled via a rack and pinion transmission. For example, the operating member 33 can be configured as a rack, the rack is coupled to the gear, the gear is threadedly coupled to the drive rod, and the drive rod is used to drive the locking member 32 to move in translation.

[0058] Reference Figure 6-Figure 9 In some embodiments of the present invention, the connecting device 30 includes a connecting body 31 connected to the oil net 20, and the connecting body 31 is provided with a first hole along a first direction, and the first hole forms a locking fitting portion 31a. By providing the first hole along the first direction on the connecting body 31, the locking fitting portion 31a is formed to cooperate with the locking component 32.

[0059] Specifically, the first hole may penetrate the connecting body 31 along the first direction, or may be set as a blind hole. In the present application, the first hole penetrates the connecting body 31 along the first direction.

[0060] It can be understood that the connection body 31 can be set to a solid or hollow structure.

[0061] In some embodiments of the present invention, referring to Figure 6-Figure 8The connecting body 31 includes a shell body 311 and a bottom plate 312 that are detachably connected. A first hole is formed between the shell body 311 and the bottom plate 312. The shell body 311 has a second hole 311a that penetrates along the second direction. The second hole 311a is connected to the first hole. The bottom plate 312 is connected to one end of the second hole 311a. The operating member 33 is penetrated through the second hole 311a, and one end is limitedly matched with the first hole.

[0062] By setting the connecting body 31 as a shell body 311 and a bottom plate 312 that are detachably connected, it is convenient to disassemble and replace the operating member 33 that is inserted therein. A first hole is formed between the shell body 311 and the bottom plate 312, and one end of the operating member 33 is limitedly matched with the first hole, so as to facilitate driving the locking member 32 to move horizontally to switch from the first position to the second position. The shell body 311 is provided with a second hole 311a that is connected to the first hole along the second direction, and the operating member 33 is inserted into the second hole 311a, so as to facilitate one end of the operating member 33 to cooperate with the first hole. One end of the operating member 33 is limitedly matched with the first hole, so that the operating member 33 is not easy to fall out of the second hole 311a. The other end of the operating member 33 can be used for operation, providing power for the operating member 33 to drive the locking member 32.

[0063] Of course, it is understandable that the shell body 311 and the bottom plate 312 may also be integrally formed. The operating member 33 may be detachably connected to the connecting body 31 , for example, the operating member 33 and the connecting body 31 are elastically matched.

[0064] In some embodiments, the shell body 311 or the bottom plate 312 is detachably connected to the oil net 20 by bolts and nuts. Specifically, the shell body 311 is detachably connected to the oil net 20 by bolts and nuts. Of course, the shell body 311 or the bottom plate 312 can also be connected to the oil net 20 by other detachable methods. In the present application, one end of the shell body 311 away from the bottom plate 312 is passed through the mounting hole provided on the oil net 20, and the other end is stuck on the mounting hole and connected to the mounting hole.

[0065] In some embodiments of the present invention, referring to Figure 6-Figure 8 One of the shell body 311 and the bottom plate 312 is provided with at least one slot 312a, and the other is provided with at least one buckle 311b matched with the slot 312a. The slot 312a and the buckle 311b are matched to realize a detachable connection, which is convenient for disassembly and installation.

[0066] Specifically, the slot 312 a may be provided on the shell body 311 , and the buckle 311 b may be provided on the bottom plate 312 ; or the slot 312 a may be provided on the bottom plate 312 , and the buckle 311 b may be provided on the bottom plate 312 .

[0067] Of course, it is understandable that the shell body 311 and the bottom plate 312 can also be detachably connected in other ways, such as by bolts and nuts.

[0068] In some embodiments of the present invention, referring to Figure 6 The operating member 33 and the connecting body 31 are elastically matched through the first elastic member 34, so that the operating member 33 has a tendency to return. In this way, the stability of the operating member 33 when not in use can be improved, and it is not easy to collide with the connecting body 31, thereby extending the service life of the operating member 33.

[0069] Specifically, the operating member 33 may be elastically matched with the bottom plate 312 through the first elastic member 34 , and may also be elastically matched with the shell body 311 through the first elastic member 34 .

[0070] In some embodiments of the present invention, referring to Figure 6 The operating member 33 and the connecting body 31 form a first guide groove 31b, and a pressing portion 33b is provided on the operating member 33 or the connecting body 31. The pressing portion 33b is movably matched with the first guide groove 31b along the second direction, and the first elastic member 34 is pressed between the pressing portion 33b and the first guide groove 31b along the second direction. By providing the first guide groove 31b, the expansion and contraction of the first elastic member 34 can be carried out stably, thereby improving the overall stability of the device.

[0071] Specifically, the operating member 33 may form the first guide groove 31b with the shell body 311, may form the first guide groove 31b with the bottom plate 312, or may form the first guide groove 31b together with the shell body 311 and the bottom plate 312. When the accommodating cavity of the first guide groove 31b is located on the connecting body 31, the pressing portion 33b is provided on the operating member 33, and when the accommodating cavity of the first guide groove 31b is located on the operating member 33, the pressing portion 33b is provided on the connecting body 31. The first elastic member 34 presses between the pressing portion 33b and the first guide groove 31b along the second direction to apply a pressing force to the operating member 33, and when the external force disappears, the operating member 33 has a tendency to return to its original position.

[0072] In some embodiments of the present invention, referring to Figure 6 and Figure 7 The second hole 311a has a stepped hole 311c at one end close to the bottom plate 312, and the stepped hole 311c, the bottom plate 312 and the operating member 33 form a first guide groove 31b, and the pressing portion 33b is arranged on the operating member 33; or, the operating member 33 is provided with a groove, and the groove and the side wall of the second hole 311a form a first guide groove 31b, and the pressing portion 33b is arranged on the connecting body 31.

[0073] Since the connecting body 31 and the bottom plate 312 are detachably connected, the second hole 311a is set as a step hole 311c near the bottom plate 312, and the step hole 311c, the bottom plate 312 and the operating member 33 form a first guide groove 31b, so that the first elastic member 34 is convenient to install and remove, and the cost of maintenance and replacement is reduced.

[0074] In some embodiments, the connecting body 31 is provided with a first mating groove along the second direction, and the first mating groove and the operating member 33 form a first guide groove 31b, or the bottom plate 312 is provided with a second mating groove along the second direction, and the pressing portion 33b is connected to one end of the operating member 33 facing the bottom plate 312 and extends deep into the second mating groove.

[0075] Specifically, the groove may be formed by a depression of a side wall of the operating member 33 , or may be formed by an upper partition and a lower partition spaced apart from each other along the second direction on the operating member 33 .

[0076] Of course, it can be understood that the groove can be set at one end close to the bottom plate 312, and the first guide groove 31b is formed by the groove, the shell body 311 and the bottom plate 312.

[0077] In some embodiments, reference Figure 6 and Figure 8 The first elastic member 34 is a spring. A first guide column 312b is provided in the first guide groove 31b along the second direction. The first guide column 312b is spaced apart from the pressing portion 33b, and the spring is sleeved on the first guide column 312b.

[0078] Specifically, a first guide post 312b is arranged in the first guide groove 31b along the second direction, and the spring is sleeved on the first guide post 312b, so as to further improve the stability of the expansion and contraction of the first elastic member 34. The first guide post 312b is arranged at a distance from the pressing portion 33b, so that the pressing portion 33b can be movably matched with the first guide groove 31b along the second direction. The spring can be sleeved only on the first guide post 312b, or can be sleeved on the first guide post 312b, and one end is connected to the first guide post 312b.

[0079] In some embodiments, the first guide column 312b may also be disposed on the pressing portion 33b, and the first guide column 312b and the first guide groove 31b are spaced apart from each other along the second direction.

[0080] Of course, it is understandable that one end of the spring may be connected to the pressing portion 33b, and the other end may be connected to the first guide groove 31b.

[0081] In some embodiments of the present invention, referring to Figure 2 , Figure 4 , Figure 5 and Fig.10The connecting device 30 also includes a base 35 connected to the housing 10, and the locking component 32 is elastically matched with the base 35 through a second elastic member 36, so that the locking component 32 has a tendency to switch from the second position to the first position.

[0082] The locking component 32 and the base 35 are elastically matched through the second elastic member 36, so that the locking component 32 has a tendency to switch from the second position to the first position. In this way, when the oil net 20 and the housing 10 are installed, it is easy to match the locking component 32 with the locking matching portion 31a, and the installation is convenient and quick.

[0083] In some embodiments, the base 35 may be a part of the housing 10 or may be connected to the housing 10 .

[0084] Of course, it is understandable that the base 35 may also be connected to the oil net 20 , and in this case, the connecting body 31 is connected to the housing 10 .

[0085] In some embodiments of the present invention, referring to Figure 4 , Figure 5 and Fig.10 The base 35 is provided with a second guide groove 35 b along the first direction, and the second elastic member 36 is installed in the second guide groove 35 b.

[0086] By setting a second guide groove 35b along the first direction on the base 35 and installing the second elastic member 36 in the second guide groove 35b, the second elastic member 36 can be extended and retracted in the second guide groove 35b along the first direction, thereby ensuring the stability and reliability of the extension and retraction of the second elastic member 36.

[0087] Specifically, one end of the second elastic member 36 may be connected to the second guide groove 35 b , or may be installed in contact with the second guide groove 35 b .

[0088] In some embodiments, reference Figure 4 , Figure 5 and Fig.10 The locking component 32 is provided with a first limiting portion 32a, and the base 35 is provided with a second limiting portion 35a at the opening end close to the second guide groove 35b. The first limiting portion 32a cooperates with the second limiting portion 35a so that the locking component 32 is at least partially located in the second guide groove 35b.

[0089] The first limiting portion 32a cooperates with the second limiting portion 35a, so that the locking component 32 is at least partially located in the second guide groove 35b. In this way, it is ensured that the locking component 32 is at least partially located in the second guide groove 35b in both the first position and the second position and will not fall out of the second guide groove 35b, thereby improving the stability of the locking component 32 in switching between the first position and the second position.

[0090] Specifically, a ring-shaped boss is provided in the middle of the locking component 32, the boss forms the first limiting portion 32a, a cover plate is provided at the open end of the second guide groove 35b, a through hole is provided on the cover plate, and the boss is located in the second guide groove 35b. The cover plate and the base 35 can be fixedly connected or detachably connected.

[0091] In some embodiments, reference Figure 4 , Figure 5 and Fig.11 At least one of the locking component 32 and the second guide groove 35b is provided with a second guide column 32b along the first direction, the second elastic member 36 is a spring, the spring is sleeved on the second guide column 32b, and abuts between the locking component 32 and the second guide groove 35b, and the length of the second positioning column along the first direction is less than or equal to the length when the elasticity is in a compressed state.

[0092] Specifically, the spring is sleeved on the second guide column 32b, which further improves the stability of the spring when it is extended and retracted. The spring is abutted between the locking component 32 and the second guide groove 35b, so that the spring has a tendency to switch from the second position to the first position, which facilitates the matching of the locking component 32 and the locking matching portion 31a. The length of the second positioning column along the first direction is less than or equal to the length of the elasticity in the compressed state, so that the second positioning column can be prevented from being blocked during the compression process of the spring.

[0093] In some embodiments, the second guide post 32b can be disposed on the locking component 32, or in the second guide groove 35b, or there can be two, respectively disposed in the locking component 32 and the second guide groove 35b. In the present application, one end of the locking component 32 is provided with a second guide post 32b, and the second guide post 32b is integrally formed with the locking component 32.

[0094] The second elastic member 36 can be sleeved only on the second guide post 32b to abut between the locking member 32 and the second guide groove 35b, or one end can be sleeved on the second guide post 32b and connected to the second guide post 32b, and the other end can be connected to the second guide groove 35b. In the present application, the second elastic member 36 is sleeved on the second guide post 32b for easy installation and replacement.

[0095] In some embodiments, the base 35 is provided with screw holes, and is detachably connected to the housing 10 by bolts and nuts, which is convenient for installation and removal. Of course, it is understandable that the base 35 and the housing 10 can also be detachably connected by other means, such as a buckle 311b connection.

[0096] In some embodiments of the present invention, referring to Figure 8 and Fig. 9The first inclined surface 33a is provided on the operating member 33, and the connecting body 31 is provided with a second inclined surface 312c and a third inclined surface 312d. The second inclined surface 312c is used to fit with the first inclined surface 33a when the operating member 33 drives the locking component 32 to switch from the first position to the second position. The third inclined surface 312d is used to drive and cooperate with the locking component 32 so that the locking component 32 moves from the outside of the locking cooperation portion 31a to the first position.

[0097] Specifically, the second inclined surface 312c and the third inclined surface 312d are both provided on the bottom plate 312, and the second inclined surface 312c is located on the active track of the operating member 33. When the operating member 33 drives the locking member 32 to switch from the first position to the second position, the second inclined surface 312c is in contact with the first inclined surface 33a, so that the first inclined surface 33a is not easy to collide with the bottom plate 312, thereby protecting the first inclined surface 33a and ensuring the subsequent operation of the first inclined surface 33a. The third inclined surface 312d is provided on a side of the bottom plate 312 away from the shell body 311, and is driven and matched with the locking member 32, so that the locking member 32 moves from the outside of the locking matching portion 31a to the first position. For example, when the oil net 20 and the shell 10 need to be assembled, the locking member 32 can move from the outside of the locking matching portion 31a to the first position where it is mutually limited with the locking matching portion 31a along the third inclined surface 312d. The first inclined surface 33a, the second inclined surface 312c and the third inclined surface 312d may be arranged in parallel or at different inclination angles.

[0098] In some embodiments of the present invention, the connecting body 31 is further provided with a fourth inclined surface 312f, and the fourth inclined surface 312f is used to drive and cooperate with the locking component 32 to move the locking component 32 from the first position to the outside of the locking fitting portion 31a.

[0099] By providing the fourth inclined surface 312f, when the oil screen 20 and the housing 10 are disassembled, the locking component 32 and the locking matching portion 31a can be gradually separated, which has a certain buffering effect. It can be understood that the first inclined surface 33a, the second inclined surface 312c, the third inclined surface 312d, and the fourth inclined surface 312f can also be set as arc surfaces, etc., as long as they can be easily driven and fitted.

[0100] In some embodiments of the present invention, referring to Figure 8 The locking fitting portion 31a is provided with a stop plane 312e parallel to the first direction so as to be stop-fitted with the locking component 32 at the first position.

[0101] By providing the stop plane 312e, when the locking component 32 is in the first position, it cooperates with the stop plane 312e to improve the stability of the locking component 32 in the first position.

[0102] In some embodiments of the present invention, referring to Figure 1-Figure 3 One of the housing 10 and the oil net 20 is provided with at least one fixing foot 20a, and the other is provided with at least one fixing slot 10b matched with the fixing foot 20a. The fixing foot 20a is matched with the fixing slot 10b to limit the relative position of the housing 10 and the oil net 20. The fixing slot 10b and the fixing foot 20a have simple structures and are easy to install and disassemble.

[0103] Specifically, the fixing pin 20a can be arranged on the oil net 20, and the fixing slot 10b can be arranged on the housing 10, or the fixing pin 20a can be arranged on the housing 10, and the fixing slot 10b can be arranged on the oil net 20. In the present application, the fixing pin 20a is arranged on the oil net 20, and the fixing slot 10b is arranged on the housing 10.

[0104] In some embodiments, the number of the fixing pins 20a and the fixing slots 10b can be one, two, three, five, etc. In the present application, the number of the fixing pins 20a and the fixing slots 10b are both two, and they are arranged at intervals along one side of the oil net 20. The number of the connecting devices 30 can be one, two, three, five, etc. In the present application, the number of the connecting devices 30 is two, and they are arranged at intervals along one side of the oil net 20 opposite to the fixing pins 20a and the fixing slots 10b.

[0105] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0106] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0107] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0108] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0109] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A smoke hood, characterized in that: include: A housing (10), the housing (10) having a smoke collecting port (10a); An oil net (20), the oil net (20) being detachably mounted on the smoke collecting port (10a); at least one connecting device (30), the connecting device (30) comprising a locking component (32) and a locking matching portion (31a), one of the locking component (32) and the locking matching portion (31a) being arranged on the housing (10), and the other being arranged on the oil net (20); the locking component (32) having a first position limited relative to the locking matching portion (31a), and a second position movable relative to the locking matching portion (31a); The connecting device (30) further comprises an operating member (33), wherein the operating member (33) is at least used to switch the locking member (32) from the first position to the second position.

2. The smoke hood according to claim 1, characterized in that: The operating member (33) drives the locking member (32) to move in translation so as to switch from the first position to the second position.

3. The smoke collecting hood according to claim 2, characterized in that: The locking component (32) switches from the first position to the second position along a first direction, and the moving direction of the operating member (33) is a second direction perpendicular to the first direction; at least one of the operating member (33) and the locking component (32) has a first inclined surface (33a), so that the operating member (33) drives the locking component (32) to move in translation via the first inclined surface (33a).

4. The smoke collecting hood according to claim 3, characterized in that: The connecting device (30) comprises a connecting body (31) connected to the oil net (20), the connecting body (31) being provided with a first hole along the first direction, the first hole forming the locking fitting portion (31a).

5. The smoke collecting hood according to claim 4, characterized in that: The connecting body (31) comprises a shell body (311) and a bottom plate (312) which are detachably connected, the first hole being formed between the shell body (311) and the bottom plate (312), the shell body (311) having a second hole (311a) penetrating along the second direction, the second hole (311a) being communicated with the first hole, the bottom plate (312) being connected to one end of the second hole (311a), the operating member (33) being passed through the second hole (311a), and one end of which is limitedly matched with the first hole.

6. The smoke collecting hood according to claim 5, characterized in that: One of the shell body (311) and the bottom plate (312) is provided with at least one card slot (312a), and the other is provided with at least one buckle (311b) that matches the card slot (312a).

7. The fume hood according to claim 5, characterized in that: The operating member (33) and the connecting body (31) are elastically matched via a first elastic member (34) so ​​that the operating member (33) has a tendency to return to its original position.

8. The fume hood according to claim 7, characterized in that: The operating member (33) and the connecting body (31) form a first guide groove (31b); a pressing portion (33b) is provided on the operating member (33) or the connecting body (31); the pressing portion (33b) is movably engaged with the first guide groove (31b) along the second direction; and the first elastic member (34) is pressed between the pressing portion (33b) and the first guide groove (31b) along the second direction.

9. The fume hood according to claim 8, characterized in that: One end of the second hole (311a) close to the bottom plate (312) is a stepped hole (311c); the stepped hole (311c), the bottom plate (312) and the operating member (33) form the first guide groove (31b); the pressing portion (33b) is arranged on the operating member (33); Alternatively, the operating member (33) is provided with a groove, the groove and the side wall of the second hole (311a) form the first guide groove (31b), and the pressing portion (33b) is arranged on the connecting body (31).

10. The fume hood according to claim 3, characterized in that: The connecting device (30) further comprises a base (35) connected to the housing (10), and the locking component (32) and the base (35) are elastically matched via a second elastic component (36) so that the locking component (32) has a tendency to switch from the second position to the first position.

11. The fume hood according to claim 10, characterized in that: The base (35) is provided with a second guide groove (35b) along the first direction, and the second elastic member (36) is installed in the second guide groove (35b).

12. The fume hood according to claim 4, characterized in that: The first inclined surface (33a) is provided on the operating member (33), and the connecting body (31) is provided with a second inclined surface (312c) and a third inclined surface (312d), the second inclined surface (312c) being used to fit with the first inclined surface (33a) when the operating member (33) drives the locking component (32) to switch from the first position to the second position, and the third inclined surface (312d) being used to drive and cooperate with the locking component (32) so that the locking component (32) moves from the outside of the locking cooperation portion (31a) to the first position.

13. The fume hood according to claim 12, characterized in that: The connecting body (31) is further provided with a fourth inclined surface (312f), and the fourth inclined surface (312f) is used to drive and cooperate with the locking component (32) so that the locking component (32) moves from the first position to the outside of the locking cooperation portion (31a).

14. The fume hood according to claim 13, characterized in that: The locking fitting portion (31a) is provided with a stop plane (312e) parallel to the first direction, so as to be stop-fitted with the locking component (32) at the first position.

15. The smoke collecting hood according to any one of claims 4 to 11, characterized in that: One of the housing (10) and the oil net (20) is provided with at least one fixing foot (20a), and the other is provided with at least one fixing groove (10b) matched with the fixing foot (20a).

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