Lampblack buffer mechanism for range hood

Abstract

The utility model discloses an oil smoke buffer mechanism for a range hood, which relates to the field of range hoods and comprises a positioning plate, a central hole is formed in the middle of the positioning plate, a smoke inlet sleeve communicated with the central hole is fixed on the bottom surface of the positioning plate, and an adjusting sleeve is inserted in the smoke inlet sleeve in a sliding manner; according to the oil smoke buffering mechanism for the range hood, the opening size of the smoke inlet side of the smoke inlet channel, namely the length of the adjusting air hole extending out of the outer side of the smoke inlet sleeve, can be adjusted, so that the effect of adjusting the opening size of the smoke inlet side of the smoke inlet channel according to the amount of smoke generated under different cooking conditions can be achieved; and no obstruction exists in the middle of the whole smoke inlet channel, so that the circulation of the smoke is not obstructed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of range hood, especially a kind of oil fume buffering mechanism for range hood. BACKGROUND

[0002] Because the oil fume quantity is different under different cooking conditions, so range hood needs to adjust the air intake under different cooking work adaptively, to adapt to different cooking conditions;

[0003] The patent of a kind of oil fume buffering mechanism for range hood disclosed in the existing announcement No.CN212362136U, by setting a baffle in the middle of positioning plate liftable, and by rotating and installing a screw in the center hole in the middle of positioning plate, the height of baffle is adjusted by screw, the distance between baffle and positioning plate is adjusted, the effect of adjusting air intake size is realized, but when using, because the screw and sleeve block of adjusting mechanism always cross in flue gas passage, it forms hindrance to the flow of flue gas, leading to the problem of flue gas flow not being smooth UTILITY MODEL CONTENT

[0004] In order to make up for the deficiency of prior art, the purpose of the utility model is to provide an oil fume buffering mechanism for range hood, which can adjust the amount of smoke and does not hinder the flow of flue gas.

[0005] In order to solve the problems of the prior art, the technical scheme of the utility model is as follows:

[0006] An oil fume buffering mechanism for range hood, comprising a positioning plate, a center hole is formed in the middle of the positioning plate, a smoke inlet sleeve is fixed on the bottom surface of the positioning plate and communicates with the center hole, and an adjusting sleeve is slidably inserted into the smoke inlet sleeve.

[0007] The upper end of the adjusting sleeve is open, and the lower end of the adjusting sleeve is closed. A plurality of adjusting air holes are equiangularly spaced on the circumferential side wall of the adjusting sleeve.

[0008] A linear movement assembly is connected between the outer wall of the adjusting sleeve and the outer wall of the smoke inlet sleeve, and is used to adjust the length of the adjusting sleeve extending out of the smoke inlet sleeve.

[0009] Preferably, the adjusting air holes are rectangular, and the long side direction of the adjusting air holes is the same as the axis direction of the adjusting sleeve.

[0010] Preferably, the linear movement assembly comprises a micro electric push rod arranged longitudinally and fixed on the outer wall of the smoke inlet sleeve, the extending end of the micro electric push rod is fixed with a connecting block, and the connecting block extends to the inner side of the smoke inlet sleeve through the sliding slot formed on the side wall of the smoke inlet sleeve and is fixed with the outer wall of the adjusting sleeve.

[0011] Preferably, the bottom of the adjusting sleeve is detachably fixed with an oil receiving hopper, and the inner circle of the opening of the oil receiving hopper has a diameter greater than the outer diameter of the adjusting sleeve.

[0012] Preferably, the oil receiving hopper is in an inverted conical shape.

[0013] Preferably, a screw is fixed to the middle of the inner wall of the oil receiving hopper, and the screw is screwed into the bottom of the adjusting sleeve through a threaded hole.

[0014] Preferably, the bottom surface of the smoke inlet sleeve is in a downward inclined shape from outside to inside.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] An adjusting sleeve is installed in the smoke inlet sleeve which communicates with the central hole to form a smoke passage and can be lifted and lowered, and an electric push rod and an adjusting air hole are arranged in cooperation, so that the opening size of the smoke inlet side of the smoke inlet passage, that is, the length of the adjusting air hole extending outside the smoke inlet sleeve, can be adjusted, thereby achieving the effect of adjusting the opening size of the smoke inlet side of the smoke inlet passage according to the amount of smoke generated under different cooking conditions, and there is no any obstruction in the middle of the entire smoke inlet passage, and the flow of smoke will not be hindered.

[0017] The cooperatively arranged oil receiving hopper can help to receive the oil formed on the outer wall of the adjusting sleeve, so as to avoid the oil from falling everywhere and dirtying the range hood, and the inverted conical oil receiving hopper can guide the smoke at the smoke inlet side, that is, below the adjusting sleeve, so as to guide the smoke to enter the adjusting air hole from the side of the adjusting sleeve, thereby improving the smoothness of the smoke flow during smoke suction.

[0018] The electric push rod can automatically and reciprocally stretch and retract at a high frequency at regular intervals, so as to realize the rapid stretching and retraction of the adjusting sleeve on the smoke inlet sleeve, scrape off the oil on the outer wall of the adjusting sleeve through the lower edge of the smoke inlet sleeve, and realize the self-cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is an enlarged view of A of the utility model. Figure 1

[0021] Figure 3 It is a schematic diagram of the shape of the adjusting air hole of the utility model.

[0022] Figure 4 It is a schematic diagram of the position structure of the screw of the utility model.

[0023] Figure 5 It is a schematic diagram of the structure of the oil receiving hopper of the utility model.​

[0024] Figure 6 The figure shows the smoke inlet channel of the utility model.

[0025] Reference signs: 1, positioning plate; 2, center hole; 3, smoke inlet sleeve; 4, adjusting sleeve; 401, adjusting air hole; 5, electric push rod; 501, connecting block; 6, oil receiving hopper; 7, screw rod; 8, smoke inlet channel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0027] Please refer to Figures 1 to 6 The embodiment provides an oil fume buffering mechanism for an extractor hood, which comprises a positioning plate 1, a center hole 2 is formed in the middle of the positioning plate 1, a smoke inlet sleeve 3 in communication with the center hole 2 is fixed to the bottom surface of the positioning plate 1, an adjusting sleeve 4 is slidably inserted into the smoke inlet sleeve 3, and the smoke inlet sleeve 3 and the center hole 2 form a smoke inlet channel 8 for smoke flow.

[0028] The upper end of the adjusting sleeve 4 is provided in an open manner, and the lower end of the adjusting sleeve 4 is provided in a closed manner; a plurality of adjusting air holes 401 are arranged on the circumferential sidewall of the adjusting sleeve 4 at equal angles, the adjusting air holes 401 are provided in a rectangular shape, and the long side direction of the adjusting air holes 401 is the same as the axis direction of the adjusting sleeve 4.

[0029] A micro electric push rod 5 arranged in a longitudinal direction is fixed to the outer wall of the smoke inlet sleeve 3, the extending end of the micro electric push rod 5 is fixed with a connecting block 501, the connecting block 501 extends to the inner side of the smoke inlet sleeve 3 through a sliding groove formed in the sidewall of the smoke inlet sleeve 3 and is fixed to the outer wall of the adjusting sleeve 4.

[0030] The adjusting sleeve 4 slides downward in the smoke inlet sleeve 3, the length of the adjusting air holes 401 extending out of the smoke inlet sleeve 3 increases, the smoke inlet side opening of the whole smoke inlet channel 8 increases, and vice versa, so that the effect of adjusting the smoke inlet amount is realized.

[0031] In the whole adjusting structure, no structure is located in the smoke inlet channel 8 to hinder the flow of smoke, the smoke flow is ensured, and the hindering of the smoke flow is reduced.

[0032] The oil receiving hopper 6 is detachably fixed to the bottom of the adjusting sleeve 4, the oil receiving hopper 6 is provided in an inverted conical shape, the inner circle of the open end of the oil receiving hopper 6 is larger than the outer diameter of the adjusting sleeve 4, and the bottom surface of the smoke inlet sleeve 3 is provided in a downward inclined shape from outside to inside.

[0033] The grease formed on the outer wall of the lower end of the adjusting sleeve 4 can slide down along the outer wall of the adjusting sleeve 4 to be collected in the oil collecting bucket 6, and the grease cannot slide along the bottom of the smoke inlet sleeve 3 to the outside of the smoke inlet sleeve 3, and is completely effectively collected by the oil collecting bucket 6;

[0034] Meanwhile, the oil collecting bucket 6 can realize the effect of guiding the flue gas, guiding the flue gas below to the side of the adjusting sleeve 4 and then entering the smoke inlet channel 8 through the adjusting air holes 401;

[0035] The middle part of the inner wall of the oil collecting bucket 6 is fixed with a screw rod 7, the screw rod 7 is screwed in the bottom of the adjusting sleeve 4 through a threaded hole, after a certain amount of grease is contained in the oil collecting bucket 6, the screw rod 7 is separated from the threaded hole by rotating the oil collecting bucket 6, the oil collecting bucket 6 is disassembled, and the screw rod 7 is screwed into the threaded hole during installation.

[0036] When the whole device is used, the positioning plate 1 is installed at the smoke inlet of the range hood, the smoke inlet channel 8 is communicated with the flue gas channel of the range hood, and the smoke inlet channel 8 is located at the air inlet end of the flue gas channel of the range hood, then the range hood works, the negative pressure is formed at the adjusting air holes 401 to adsorb the oil fume into the adjusting sleeve 4, then the oil fume enters the flue gas channel of the range hood through the center hole 2, and the effect of removing the oil fume is realized.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fume buffer mechanism for a range hood, comprising a positioning plate (1) having a central hole (2) formed in the middle of the positioning plate (1), characterized in that, The bottom surface of the positioning plate (1) is fixed with a smoke inlet sleeve (3) that communicates with the central hole (2), and an adjusting sleeve (4) is slidably inserted inside the smoke inlet sleeve (3). The upper end of the adjusting sleeve (4) is open, the lower end of the adjusting sleeve (4) is closed, and a number of adjusting air holes (401) are opened at equal angles on the circumferential side wall of the adjusting sleeve (4). A linear motion component is connected between the outer wall of the adjusting sleeve (4) and the outer wall of the smoke inlet sleeve (3). The linear motion component is used to adjust the length of the adjusting sleeve (4) extending from the smoke inlet sleeve (3).

2. The fume buffer mechanism for a range hood according to claim 1, characterized in that, The regulating vent (401) is rectangular, and the long side of the regulating vent (401) is in the same direction as the axis of the regulating sleeve (4).

3. The fume buffer mechanism for a range hood according to claim 1, characterized in that, The linear motion assembly includes a longitudinally arranged miniature electric push rod (5) fixed on the outer wall of the smoke inlet sleeve (3). The extended end of the miniature electric push rod (5) is fixed with a connecting block (501). The connecting block (501) extends through a groove formed on the side wall of the smoke inlet sleeve (3) to the inner side of the smoke inlet sleeve (3) and is fixed to the outer wall of the adjusting sleeve (4).

4. The fume buffer mechanism for a range hood according to claim 1, characterized in that, The bottom of the adjusting sleeve (4) is detachably fixed with an oil receiving hopper (6), and the diameter of the inner ring at the opening of the oil receiving hopper (6) is greater than the outer diameter of the adjusting sleeve (4).

5. The fume buffer mechanism for a range hood according to claim 4, characterized in that, The oil receiving hopper (6) is arranged in an inverted cone shape.

6. The fume buffer mechanism for a range hood according to claim 4, characterized in that, A screw (7) is fixed in the middle of the inner wall of the oil receiving hopper (6), and the screw (7) is threaded to the bottom of the adjusting sleeve (4) through a threaded hole.

7. The fume buffer mechanism for a range hood according to claim 4, characterized in that, The bottom surface of the smoke inlet sleeve (3) is inclined downward from the outside to the inside.

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