CN112413669B - Range hood capable of distributing air volume - Google Patents

Abstract

The invention relates to a range hood capable of distributing air volume, which comprises a shell, wherein a smoke inlet is formed in the front side wall of the lower part of the shell, the smoke inlet is provided with a left part and a right part which are arranged side by side in the transverse direction, an adjusting structure capable of adjusting the opening degree of the left part and the right part of the smoke inlet is arranged at the smoke inlet, the adjusting structure comprises a first baffle and a second baffle, the first baffle and the second baffle are rotatably connected to the smoke inlet, and the adjusting structure is provided with a first adjusting mechanism for driving the first baffle to turn over forwards and backwards so as to adjust the opening degree of the left part and a second adjusting mechanism for driving the second baffle to turn over forwards and backwards so as to adjust the opening degree of the right part. When needs use the unilateral furnace end, the upset of above-mentioned first baffle of accessible, second baffle makes into the increase of mouth one side aperture of cigarette, opposite side aperture reduce or close, when needs use two side furnace ends, can all open greatly into mouth both sides aperture to carry out rational distribution to the amount of wind as required, avoid running the cigarette, improve the oil absorption cigarette effect.

Description

Range hood capable of distributing air volume

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a range hood capable of distributing air volume.

Background

Range hood is the electrical apparatus that is essential in the present kitchen, and is comparatively common and use more extensively to arrange formula oil smoke clean system on.

At present, the upward-exhaust oil fume purification system is mainly divided into two types: a top-suction range hood and a near-suction range hood. The top-suction type range hood is more beautiful, but the smoke inlet is higher, and the smoke suction effect is limited; compared with a top-suction range hood, the near-suction range hood has a lower smoke inlet, but is influenced by the appearance structure and the internal air duct structure of the near-suction range hood, and the existing near-suction range hood cannot better approach oil smoke, so that the oil smoke suction effect is limited to a great extent.

For the existing Chinese kitchen, the kitchen range usually has two furnace ends arranged side by side, one of the furnace ends is used independently or two furnace ends are used simultaneously during cooking, no matter which using state is, the oil smoke generating source is the position corresponding to the two furnace ends, and the oil smoke concentration at the position corresponding to the middle of the range hood is relatively small. Most families cannot use two furnace ends to stir quickly with big fire at the same time, one furnace end is used for frying under the more conditions (the generated oil smoke quantity is very large), the other furnace end is used for cooking (the generated oil smoke quantity is less), the existing range hood is adopted, and the problems that the oil smoke is discharged out of one side not timely enough and the oil smoke escapes easily exist due to the fact that air inlets of the range hood corresponding to the two furnace ends and the air quantity are not different.

In order to solve the above problems, the prior application of the applicant, namely a range hood (application number: 201920901581.4), discloses a structure, in which a baffle assembly capable of dividing a smoke inlet chamber into two air inlet channels arranged left and right and relatively independent is arranged in the smoke inlet chamber, and the baffle assembly is connected with an adjusting structure capable of adjusting the position of the baffle assembly so as to control the opening of the two air inlet channels. The adjusting structure can adjust the opening of the air channel, so that the air quantity of the air inlet side corresponding to the two burner ends is adjusted and controlled, and the oil smoke absorption effect is improved. At present, in the prior art, a range hood capable of directly regulating and controlling the air suction effect corresponding to a single-side burner by regulating the size of an air inlet corresponding to the burner is not available.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a range hood capable of adjusting the size of a single-side air inlet according to requirements so as to improve the range hood effect and distributing air volume.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood that can carry out amount of wind distribution, includes the casing and locates the fan system in this casing, the casing upper portion is located to the fan system, the casing lower part has vertical extension's the chamber of advancing, it has the mouth of advancing that is linked together with this chamber of advancing to open on the preceding lateral wall of casing lower part, its characterized in that: the cigarette inlet has horizontal left part and right part side by side, the mouth of cigarette inlet department is provided with the regulation structure that can adjust its left part and the aperture size of right part, and this regulation structure includes first baffle, second baffle, first baffle, second baffle are arranged and are rotated in succession in mouth of cigarette inlet department corresponding the left part and the right part of mouth of cigarette inlet respectively, thereby the regulation structure has and is used for driving first baffle front and back upset to adjust the first adjustment mechanism of left part aperture size, thereby is used for driving second baffle front and back upset to adjust the second adjustment mechanism of right part aperture size.

Preferably, the adjusting structure further comprises an elastic member, and the elastic member keeps the first baffle and the second baffle always in a tendency of being turned backwards.

For convenience of connection and assembly, the elastic member is a linear spring, the upper end of the linear spring is constrained on the rear side wall of the lower part of the first baffle/the second baffle, and the lower end of the linear spring is constrained on the bottom of the shell.

In the invention, the first adjusting mechanism and the second adjusting mechanism are identical in structure and respectively comprise a swinging piece and a driving piece, the swinging piece can be rotatably arranged at the rear side of the first baffle plate/the second baffle plate, a shifting arm which can abut against the rear side wall of the first baffle plate/the second baffle plate along with the rotation of the swinging piece so as to push the swinging piece to overturn forwards by overcoming the elastic force of the elastic piece is arranged on the peripheral wall of the swinging piece, and the driving piece is used for driving the swinging piece to rotate. By adopting the structure, the front and back overturning of the first baffle and the second baffle is realized, and then the air volume distribution of the left part and the right part is realized.

Preferably, the swinging member has a rotation shaft arranged parallel to the first shutter/the second shutter, and the paddle arm extends in a radial direction of the rotation shaft.

Preferably, the lower edges of the first baffle plate and the second baffle plate are respectively connected with the lower edge of the smoke inlet in a rotating manner, and an air inlet capable of adjusting the opening degree due to the rotation of the baffle plates is formed between the upper edge of the first baffle plate and the upper edge of the second baffle plate and the corresponding upper edge of the smoke inlet. An air inlet is formed between the upper edge of the first baffle plate, the upper edge of the second baffle plate and the corresponding upper edge of the smoke inlet, and a fan system is arranged above the air inlet to facilitate the upward discharge of smoke; meanwhile, the opening degrees of the air inlets of the left part and the right part can be respectively adjusted, so that the air quantity of the fans of the left part and the right part is distributed, the requirement that the two furnace ends are used independently or simultaneously (the two furnace ends generate different oil smoke quantities) is met, the smoke leakage is avoided, and the oil smoke absorption effect is improved.

In the invention, when the air inlet is opened, the first baffle/the second baffle form a guide plate which is gradually inclined from bottom to top and from front to back. The first baffle and the second baffle can be matched with each other to realize air distribution of the left air inlet and the right air inlet, and can also guide oil smoke upwards in a corresponding air inlet using state; due to the vertical arrangement of the smoke inlet cavity, after the oil smoke enters the smoke inlet cavity, the oil smoke can be prevented from diffusing in the bottom area of the smoke inlet cavity, so that the stroke of the oil smoke at the bottom of the smoke inlet cavity is reduced, and the oil smoke is directly discharged along the guide plate; simultaneously, for the face of bending that exists in advance smoke chamber bottom, the whole inclined plane structure of guide plate enables the more stable flow of oil smoke.

Preferably, the end part of the poking arm is provided with a roller which can be in running fit with the rear side wall of the first baffle/the second baffle. Above-mentioned gyro wheel can adopt soft gyro wheel such as silica gel, rubber or at the soft cover of gyro wheel outside cladding, is favorable to reducing and dials the friction between arm and first baffle, the second baffle to sound when reducing and dial arm and baffle contact reduces the noise.

In order to facilitate installation and assembly, the adjusting structure further comprises a support for supporting the swinging piece, the support is constrained in the smoke inlet cavity and is provided with a supporting arm extending towards the first baffle and the second baffle, the rotating shaft of the swinging piece is rotatably connected onto the supporting arm, and the driving piece is arranged beside the support and the output shaft is connected with the rotating shaft.

Preferably, the edge that first baffle is close to the cigarette inlet middle part is provided with the first separation blade of backward extension, the edge that the second baffle is close to the cigarette inlet middle part is provided with the second separation blade of backward extension, the diapire that advances the cigarette chamber forms from preceding back, oil deflector that slopes gradually from bottom to top first baffle/second baffle under first baffle/second baffle backward upset to the maximum angle state, the back lateral wall that advances the cigarette chamber is pressed close to the back edge of first baffle/second baffle arranges, the lower limb of first baffle/second baffle is pressed close to oil deflector and is arranged. By adopting the structure, when the furnace end is used independently, the blocking piece can prevent the oil smoke from moving to the side in the smoke inlet cavity, thereby improving the air distribution effect, shortening the upward exhaust stroke of the oil smoke and further improving the oil smoke absorption effect.

In order to facilitate assembly and connection, a concave assembly plate is arranged in the middle of the oil guide plate, and the bottom of the support is fixed on the assembly plate.

Compared with the prior art, the invention has the advantages that: the invention sets an adjusting structure which can adjust the opening sizes of the left part and the right part of the smoke inlet at the smoke inlet, the adjusting structure comprises a first baffle plate and a second baffle plate which can turn back and forth, and a first adjusting mechanism and a second adjusting mechanism which are used for driving the first baffle plate and the second baffle plate to turn over.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention (the left and right air inlets have different opening degrees);

FIG. 2 is a schematic structural diagram of an embodiment of the present invention (both the left and right air inlets are in the maximum opening);

FIG. 3 is a cross-sectional view of an embodiment of the present invention (different opening of the left and right air inlets);

FIG. 4 is a schematic view of a partial structure of an adjusting structure in an embodiment of the present invention (both the left and right air inlets have the maximum opening);

FIG. 5 is a schematic structural diagram of the first and second adjusting mechanisms (left-open and right-open states) according to the embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a first adjusting mechanism and a second adjusting mechanism (left closed and right open states) according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the first adjustment mechanism and the second adjustment mechanism in the embodiment of the present invention (left open and right closed states).

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 7, the range hood capable of distributing air volume in this embodiment includes a housing 1 and a fan system disposed in the housing 1. The lower part of the shell 1 is provided with a vertically extending smoke inlet cavity 11, the front side wall of the lower part of the shell 1 is provided with a smoke inlet 111 communicated with the smoke inlet cavity 11, as shown in fig. 3, the upper part of the shell 1 is provided with a smoke collecting cavity 12 communicated with the smoke inlet cavity 11, the smoke collecting cavity 12 extends forwards to form a mounting cavity 13 for mounting a fan system, it should be noted that the mounting cavity 13 is used for mounting the fan system, but the mounting position of the fan system should not be completely limited in the mounting cavity 13, and because the smoke collecting cavity 12 and the mounting cavity 13 are an integral body, when the fan system is mounted, the part of the fan system can be located in the smoke collecting cavity 12 according to requirements. Because the smoke inlet cavity 11 at the lower part of the shell 1 vertically extends, the width of the smoke inlet cavity 11 in the front-back direction can be made thinner, and the smoke inlet cavity can extend downwards to be sufficiently close to a cooker and a smoke generating source, so that the smoke can be quickly sucked into the smoke inlet cavity to be discharged upwards once being generated, and the smoke suction effect is improved.

As shown in fig. 2, the smoke inlet 111 of the present embodiment has a left portion 11a and a right portion 11b which are arranged side by side in the transverse direction, an adjusting structure 2 capable of adjusting the opening sizes of the left portion 11a and the right portion 11b is disposed at the smoke inlet 111, the adjusting structure 2 includes a first baffle 21, a second baffle 22, a first adjusting mechanism 23, and a second adjusting mechanism 24, the first baffle 21 and the second baffle 22 are respectively disposed corresponding to the left portion 11a and the right portion 11b of the smoke inlet 111, the lower edges of the first baffle 21 and the second baffle 22 are respectively connected to the lower edge of the smoke inlet 111 through the matching structure of the shaft 100a and the shaft hole 100b, and an air inlet 110 capable of adjusting the opening size due to the baffle rotation is formed between the upper edge of the first baffle 21, the upper edge of the second baffle 22, and the upper edge of the corresponding smoke inlet 111. The first adjusting mechanism 23 is used for driving the first baffle 21 to turn back and forth so as to adjust the opening of the air inlet 110 corresponding to the left portion 11a, and the second adjusting mechanism 24 is used for driving the second baffle 22 to turn back and forth so as to adjust the opening of the air inlet 110 corresponding to the right portion 11 b.

In the opened state of the intake vent 110, the first baffle 21/the second baffle 22 of the present embodiment forms a baffle that gradually inclines from bottom to top and from front to back. The first baffle 21 and the second baffle 22 of the present embodiment can be matched with each other to realize the air distribution of the left and right air inlets 110, and can also guide the oil smoke upwards in the use state of the corresponding air inlets 110; due to the vertical arrangement of the smoke inlet cavity 11 in the embodiment, by adopting the structure, after the oil smoke enters the smoke inlet cavity 11, the oil smoke can be prevented from diffusing in the bottom area of the smoke inlet cavity 11, so that the stroke of the oil smoke at the bottom of the smoke inlet cavity 11 is reduced, and the oil smoke is directly discharged along the guide plate; meanwhile, relative to the bending surface at the bottom of the smoke inlet cavity 11, the integral inclined plane structure of the guide plate enables the oil smoke to flow more stably.

Specifically, as shown in fig. 4, the adjusting structure 2 further includes an elastic member 25, where the elastic member 25 is a linear spring, and the two linear springs are respectively disposed corresponding to the first baffle 21 and the second baffle 22, so that the first baffle 21 and the second baffle 22 always keep a tendency of being turned backwards. The upper end of the linear spring is fixed on the rear side wall of the lower part of the first baffle 21/the second baffle 22, and the lower end of the linear spring is fixed at the bottom of the casing 1 and at the position of the smoke inlet 111 at the rear side.

In this embodiment, the first adjustment mechanism 23 and the second adjustment mechanism 24 are identical in structure, and each of the first adjustment mechanism 23 and the second adjustment mechanism 24 includes a swinging member 231 and a driving member 232, the swinging member 231 is rotatably disposed at the rear side of the first blocking plate 21/the second blocking plate 22, a toggle arm 2311 which can abut against the rear side wall of the first blocking plate 21/the second blocking plate 22 along with the rotation of the swinging member 231 so as to push the swinging member 231 to turn forward against the elastic force of the elastic member 25 is disposed on the outer peripheral wall of the swinging member 231, and the driving member 232 is used for driving the swinging member 231 to rotate. The swinging member 231 has a rotation shaft 2312 arranged in parallel with the first shutter 21/the second shutter 22, and the lever arm 2311 extends in the radial direction of the rotation shaft 2312. With the above configuration, the first baffle 21 and the second baffle 22 are reversed back and forth, and the air volume distribution between the left portion 11a and the right portion 11b is realized.

The end of the arm 2311 is provided with a roller 200 which can be rotatably engaged with the rear sidewall of the first shutter 21/the second shutter 22. The roller 200 can be made of soft rollers such as silica gel and rubber or coated with soft sleeves, which is beneficial to reducing the friction between the shifting arm 2311 and the first baffle 21 and the second baffle 22, thereby reducing the sound when the shifting arm 2311 contacts with the baffles and reducing the noise.

In this embodiment, the first adjusting mechanism 23 and the second adjusting mechanism 24 of the present embodiment are not linked, a limiting member 234 is respectively disposed beside the two swinging members 231, and the two limiting members 234 are both located at the top of the adjusting structure 2 and are used for limiting the turning position of the corresponding shifting arm 2311, so as to limit the first baffle 21 and the second baffle 22 when they are turned forward from the maximum angle state.

For the convenience of installation and assembly, the adjusting structure 2 further comprises a support 26 for supporting the swinging member 231, the support 26 is constrained in the smoke inlet cavity 11 and has a support arm 261 extending towards the first baffle 21 and the second baffle 22, the rotating shaft 2312 of the swinging member 231 is rotatably connected to the support arm 261, the driving member 232 is a motor capable of rotating forward and backward, and is arranged beside the support 26, and the output shaft is connected with the rotating shaft 2312. The edge of the first baffle 21 near the middle of the smoke inlet 111 is provided with a first baffle 211 extending backwards, and the edge of the second baffle 22 near the middle of the smoke inlet 111 is provided with a second baffle 221 extending backwards. In this embodiment, the bottom wall of the smoke inlet chamber 11 forms an oil guide plate 112 which is inclined gradually from front to back and from bottom to top, and in a state where the first baffle plate 21/the second baffle plate 22 are turned backwards to a maximum angle, the rear edge of the first baffle plate 21/the second baffle plate 22 is arranged close to the rear side wall of the smoke inlet chamber 11, and the lower edge of the first baffle plate 21/the second baffle plate 22 is arranged close to the oil guide plate 112. By adopting the structure, when the burner is used independently, the blocking piece can prevent the oil smoke from moving to the side in the smoke inlet cavity 11, thereby improving the air distribution effect, shortening the upward exhaust stroke of the oil smoke and further improving the oil smoke absorption effect. For the convenience of assembly and connection, a concave assembly plate 113 is provided at the middle of the oil guide plate 112, and the bottom of the bracket 26 is fixed to the assembly plate 113.

When the range hood of the present embodiment is used, and the left side burner is used alone, but not the right side burner, as shown in fig. 7, the motor of the second adjusting mechanism 24 rotates to drive the swinging member 231 to rotate, so that the toggle arm 2311 of the second adjusting mechanism 24 pushes the second baffle 22 to turn forward to the maximum angle, and the air inlet 110 of the right portion 11b is substantially closed, at this time, the toggle arm 2311 of the first adjusting mechanism 23 does not contact the first baffle 21, and the first baffle 21 keeps turning backward under the action of the elastic member 231 thereof, so that the opening degree of the air inlet 110 of the left portion 11a reaches the maximum;

when the right burner is used alone but not the left burner, as shown in fig. 6, the motor of the first adjusting mechanism 23 rotates to drive the swinging member 231 to rotate, so that the toggle arm 2311 of the first adjusting mechanism 23 rotates, after the end of the toggle arm 2311 of the first adjusting mechanism 23 contacts with the first baffle 21, the first baffle 21 starts to be driven to turn forwards until the first baffle 21 turns to the maximum angle, the air inlet 110 of the left portion 11a is substantially closed, at this time, the second toggle arm 2311 of the second adjusting mechanism 24 does not contact with the second baffle 22, and the second baffle 22 keeps turning backwards under the action of the elastic member 231 thereof, so that the opening degree of the air inlet 110 of the right portion 11b reaches the maximum;

when the two burners are required to be used simultaneously, as shown in fig. 5, the two motors operate simultaneously to drive the corresponding swinging members 231 to rotate, so that the toggle arms 2311 of the first adjusting mechanism 23 are not in contact with the first baffle 21, the toggle arms 2311 of the second adjusting mechanism 24 are not in contact with the second baffle 22, and the first baffle 21 and the second baffle 22 are kept to turn backwards under the action of the elastic members 231 thereof, respectively, so that the openings of the air inlets 110 of the left portion 11a and the right portion 11b reach the maximum.

It should be noted that, for convenience of description, the above-mentioned adjusting process of the present embodiment shows left-open and right-close, left-close and right-open, and left-open and right-open states, but the adjusting structure of the present invention should also be able to achieve a half-open state of the air inlet on either side according to needs, and is not limited to a fully-open or fully-close state. For example, in the present invention, by controlling the length or swing angle of the first shift arm 2321 and the second shift arm 2322, a gap of about 20mm is left between the upper edge of the first baffle and the upper edge of the smoke inlet when the first baffle is turned forward to the maximum angle, so that when the second baffle is turned backward to the maximum angle, the main air volume of the blower is concentrated at the air inlet corresponding to the second baffle, but the air volume of the blower corresponding to the first baffle can also meet the suction requirement of steam such as steaming vegetables and cooking soup or other small oil smoke, thereby providing greater convenience for consumers.

Claims (9)

1. The utility model provides a can carry out range hood of amount of wind distribution, includes casing (1) and locates the fan system in this casing (1), casing (1) upper portion is located to the fan system, casing (1) lower part has vertical extension's advance smoke chamber (11), it has advance smoke mouth (111) that are linked together with this advance smoke chamber (11) to open on the preceding lateral wall of casing (1) lower part, its characterized in that: the cigarette inlet (111) is provided with a left part (11a) and a right part (11b) which are arranged side by side in the transverse direction, an adjusting structure (2) capable of adjusting the opening sizes of the left part (11a) and the right part (11b) of the cigarette inlet (111) is arranged at the cigarette inlet (111), the adjusting structure (2) comprises a first baffle plate (21) and a second baffle plate (22), the first baffle plate (21) and the second baffle plate (22) are respectively arranged corresponding to the left part (11a) and the right part (11b) of the cigarette inlet (111) and are rotatably connected with the cigarette inlet (111), and the adjusting structure (2) is provided with a first adjusting mechanism (23) for driving the first baffle plate (21) to turn back and forth so as to adjust the opening size of the left part (11a) and a second adjusting mechanism (24) for driving the second baffle plate (22) to turn back and forth so as to adjust the opening size of the right part (11 b);

the lower edges of the first baffle plate (21) and the second baffle plate (22) are respectively connected with the lower edge of the smoke inlet (111) in a rotating manner, and an air inlet (110) with the opening degree capable of being adjusted due to the rotation of the baffle plates is formed between the upper edge of the first baffle plate (21) and the upper edge of the second baffle plate (22) and the upper edge of the corresponding smoke inlet (111);

when the corresponding air inlet (110) of the first baffle plate (21)/the second baffle plate (22) is in an opening state, the first baffle plate (21)/the second baffle plate (22) form a flow guide plate which is gradually inclined from bottom to top and from front to back.

2. The range hood capable of distributing air volume according to claim 1, wherein: the adjusting structure (2) further comprises an elastic piece (25), and the elastic piece (25) enables the first baffle plate (21) and the second baffle plate (22) to always keep a backward overturning trend.

3. The range hood capable of distributing air volume according to claim 2, wherein: the elastic member (25) is a linear spring, the upper end of which is constrained to the rear side wall of the lower portion of the first shutter (21)/second shutter (22), and the lower end of which is constrained to the bottom of the housing (1).

4. The range hood capable of distributing air volume according to claim 1, 2 or 3, wherein: the first adjusting mechanism (23) and the second adjusting mechanism (24) are identical in structure and respectively comprise a swinging piece (231) and a driving piece (232), the swinging piece (231) can be rotatably arranged on the rear side of the first baffle plate (21)/the second baffle plate (22), a poking arm (2311) which can abut against the rear side wall of the first baffle plate (21)/the second baffle plate (22) along with the rotation of the swinging piece (231) so as to push the swinging piece to overturn forwards by overcoming the elastic force of the elastic piece (25) is arranged on the outer peripheral wall of the swinging piece (231), and the driving piece (232) is used for driving the swinging piece (231) to rotate.

5. The range hood capable of distributing air volume according to claim 4, wherein: the swinging member (231) has a rotation shaft (2312) arranged parallel to the first shutter (21)/the second shutter (22), and the lever arm (2311) extends in the radial direction of the rotation shaft (2312).

6. The range hood capable of distributing air volume according to claim 4, wherein: the end part of the shifting arm (2311) is provided with a roller (200) which can be in running fit with the rear side wall of the first baffle (21)/the second baffle (22).

7. The range hood capable of distributing air volume according to claim 5, wherein: the adjusting structure (2) further comprises a support (26) for supporting the swinging piece (231), the support (26) is constrained in the smoke inlet cavity (11) and is provided with a support arm (261) extending towards the first baffle plate (21) and the second baffle plate (22), a rotating shaft (2312) of the swinging piece (231) is rotatably connected onto the support arm (261), the driving piece (232) is arranged beside the support (26), and an output shaft is connected with the rotating shaft (2312).

8. The range hood capable of distributing air volume according to claim 7, wherein: first baffle (21) are close to the edge at smoke inlet (111) middle part and are provided with first separation blade (211) that extend backward, the edge that second baffle (22) are close to smoke inlet (111) middle part is provided with second separation blade (221) that extend backward, the diapire that advances smoke chamber (11) forms from preceding back, from bottom to top oil deflector (112) that inclines gradually first baffle (21)/second baffle (22) overturn backward under to the maximum angle state, the back lateral wall that advances smoke chamber (11) is pressed close to the back edge of first separation blade (211)/second separation blade (221) arranges, the lower limb of first separation blade (211)/second separation blade (221) presses close to oil deflector (112) and arranges.

9. The range hood capable of distributing air volume according to claim 8, wherein: the middle part of the oil guide plate (112) is provided with a concave assembly plate (113), and the bottom of the bracket (26) is fixed on the assembly plate (113).

Images