Filtering device of vacuum diaphragm type carburetor

Abstract

The utility model relates to the technical field of carburetor equipment, and discloses a filtering device of a vacuum diaphragm type carburetor, which structurally comprises a carburetor main body, an adjusting handle, an air inlet channel, an air filtering device and a floater chamber, the carburetor has the advantages that entering air can be filtered by means of the filter screen and the activated carbon adsorption net which are installed on the air filter device, toxic substances such as formaldehyde and dust in the air are adsorbed and purified, and dust impurities in the air are prevented from entering a pipeline of the carburetor; and normal use of the carburetor is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of carburetor equipment, in particular to a filter device for a vacuum diaphragm carburetor. Background Art

[0002] The carburetor is a precision mechanical device that uses the kinetic energy of the inhaled air flow to atomize gasoline. Specifically, it is a mechanical device that mixes a certain proportion of gasoline and air under the vacuum generated by the engine. Its vital role in the engine can be called the "heart" of the engine. Existing diaphragm carburetors typically consist of a mixing chamber, an intake pipe, and an oil inlet pipe. Air and fuel are mixed in the mixing chamber and then supplied to the internal combustion engine for combustion, thus ensuring normal engine operation.

[0003] Based on the above, the existing diaphragm carburetor usually filters the external air through the air filter installed inside the carburetor during use. However, after a long period of filtration, a large amount of dust and impurities will accumulate in the filter, thereby affecting the filtering effect. The external air inlet of the existing carburetor is not equipped with a device that can filter the air, which will cause the dust and impurities in the air to enter with the air and adhere to the inside of the carburetor pipe, thereby affecting the normal use of the diaphragm carburetor. Utility Model Content

[0004] 1. Technical Problems to be Solved by the Utility Model

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a filter device for a vacuum diaphragm carburetor, which has the function of filtering the external air entering when the diaphragm carburetor is working.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A filtering device for a vacuum diaphragm carburetor comprises a carburetor body, an adjusting handle, an air intake passage, an air filtering device, and a float chamber. The adjusting handle is mounted on the carburetor body, an air intake passage is provided on one side of the carburetor body, an air filtering device capable of filtering external air is mounted on the air intake passage, and a float chamber is mounted on the bottom of the carburetor body.

[0009] As an optimization, the air filtering device includes an installation box, a control box, a positioning hole, a filter element, a cleaning element, an adsorption element and a collection box. The control box is fixed on the installation box, and a positioning hole is provided on the inner bottom of the installation box. The filter element, the cleaning element and the adsorption element are installed in the installation box. The filter element, the cleaning element and the adsorption element are placed from left to right in sequence. The bottom of the installation box is also connected to a collection box that can collect dust and debris cleaned from the filter element.

[0010] As an optimization, the filter element includes an external gear, a driving tooth, a driven tooth, and a filter screen. The filter screen is installed inside the external gear. The gear on the external gear is meshed with a driving tooth and a driven tooth. The driving tooth and the driven tooth are both connected to the installation box. The driven tooth is provided with three teeth and rotates with the installation box.

[0011] As an optimization, the cleaning part includes a ball screw, a motor, a movable seat, a slide rod and a cleaning brush. A motor is installed on the top of the ball screw, and the motor is electrically driven through a control box. The ball screw is slidably fitted with a movable seat through a guide, and the other end of the movable seat is slidably fitted with the slide rod. A cleaning brush is installed on the side of the movable seat close to the filter.

[0012] As an optimization, the ball screw and the slide rod are both connected to the positioning holes at the bottom of the installation box.

[0013] As an optimization, an activated carbon adsorption net is installed in the adsorption member.

[0014] As an optimization, the collection box includes a guide plate, a chip removal plate and a slide groove. The guide plate is fixed inside the collection box, and a slide groove is opened inside the collection box. The chip removal plate is slidably fitted in the slide groove.

[0015] As an optimization, one end of the chip removal plate is further connected to a spring, the springs are symmetrically arranged and the other end is connected to the collection box, and a pull rod is provided between the two springs.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) The utility model relates to a filter device for a vacuum diaphragm carburetor, which is additionally provided with an air filter device. With the help of a filter net and an activated carbon adsorption net installed on the air filter device, the incoming air can be filtered, and toxic substances such as formaldehyde, as well as dust and dirt in the air can be adsorbed and purified, thereby preventing dust and impurities in the air from entering the pipes of the carburetor and affecting the normal use of the carburetor. The additional external filter device can avoid the problem of impurities accumulating in the filter inside the carburetor and requiring frequent replacement and cleaning.

[0019] (2) The utility model provides a filter device for a vacuum diaphragm carburetor, which is additionally provided with a cleaning part. The control box drives the driving gear and the ball screw to operate, and the driving gear drives the outer gear and the filter to rotate, while the ball screw drives the movable seat to move up and down through the guide member. The cleaning brush on one side of the movable seat is used to clean the dust and impurities adhered to the filter. Due to the rotation of the filter, the cleaning brush can clean the filter more comprehensively when cleaning the filter.

[0020] (3) The utility model relates to a filter device for a vacuum diaphragm carburetor, which is additionally provided with a collection box. By pulling a pull rod outward, the pull rod drives a chip removal plate to slide in a slide groove and squeeze a spring. As the chip removal plate moves, the bottom of the collection box is exposed, so that the collected fine chips can be discharged. Then, under the elastic force of the spring, the bottom of the collection box is reset and sealed again, which can prevent the cleaned dust and fine chips from falling into the interior of the filter device and causing accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a filter device for a vacuum diaphragm carburetor according to the present invention;

[0022] Figure 2 This is a schematic diagram of the exploded structure of the air filter device of the present utility model;

[0023] Figure 3 This is a schematic structural diagram of the filter element of the present invention;

[0024] Figure 4 This is a schematic structural diagram of the cleaning member of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of the adsorption element of the present utility model;

[0026] Figure 6 This is a schematic structural diagram of the collection box of the present utility model;

[0027] Figure 7 This is a schematic diagram of the anatomical structure of the collection box of the present utility model;

[0028] Figure 8 This is a schematic structural diagram of the chip removal plate of the present invention;

[0029] Figure 9 This is a schematic diagram of the anatomical structure of the carburetor body of the present utility model.

[0030] Reference numerals in the figure: carburetor body-1, adjusting handle-2, air intake channel-3, air filter device-4, float chamber-5, installation box-41, control box-42, positioning hole-43, filter element-44, cleaning element-45, adsorption element-46, collection box-47, external gear-441, driving gear-442, driven gear-443, filter screen-444, ball screw-451, motor-452, movable seat-453, slide rod-454, cleaning brush-455, activated carbon adsorption screen-461, guide plate-471, chip removal plate-472, slide groove-473, spring-474, pull rod-475. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example

[0033] See also Figure 1-9 A filtering device for a vacuum diaphragm carburetor comprises a carburetor body 1, an adjusting handle 2, an air intake passage 3, an air filtering device 4, and a float chamber 5. The carburetor body 1 is provided with an adjusting handle 2, an air intake passage 3 is provided on one side of the carburetor body 1, an air filtering device 4 capable of filtering external air is installed on the air intake passage 3, and a float chamber 5 is provided at the bottom of the carburetor body 1.

[0034] In this embodiment, the air filtering device 4 includes an installation box 41, a control box 42, a positioning hole 43, a filter element 44, a cleaning element 45, an adsorption element 46 and a collection box 47. The control box 42 is fixed on the installation box 41, and a positioning hole 43 is provided at the inner bottom of the installation box 41. The filter element 44, the cleaning element 45 and the adsorption element 46 are installed in the installation box 41. The filter element 44, the cleaning element 45 and the adsorption element 46 are placed from left to right in sequence. The bottom of the installation box 41 is also connected to a collection box 47 that can collect dust and debris cleaned from the filter element 44.

[0035] In this embodiment, the filter element 44 includes an external gear 441, a driving tooth 442, a driven tooth 443, and a filter screen 444. A filter screen 444 that can filter external air is installed in the external gear 441. The gears on the external gear 441 are engaged with the driving tooth 442 and the driven tooth 443. The driving tooth 442 and the driven tooth 443 are both connected to the installation box 41. The driving tooth 442 can be driven by the control box 42 and rotated, and the external gear 441 is driven to rotate through the gear engagement. There are three driven teeth 443 and they rotate with the installation box 41. When the external gear 441 rotates with the driving tooth 442, it can engage with the driven tooth 443 gear, and the driven tooth 443 supports the external gear 441.

[0036] In this embodiment, the cleaning component 45 includes a ball screw 451, a motor 452, a movable seat 453, a slide rod 454 and a cleaning brush 455. The motor 452 is installed on the top of the ball screw 451, and the motor 452 is electrically connected and driven by the control box 42. The ball screw 451 is slidably fitted with the movable seat 453 through a guide member, and the other end of the movable seat 453 is slidably fitted with the slide rod 454. The side of the movable seat 453 close to the filter 444 is equipped with a cleaning brush 455 that can clean dust and impurities attached to the filter 444.

[0037] In this embodiment, the ball screw 451 and the slide bar 454 are both connected to the positioning hole 43 at the bottom of the installation box 41 . The positioning hole 43 can play a positioning role, facilitating the installation of the ball screw 451 and the slide bar 454 .

[0038] In this embodiment, an activated carbon adsorption net 461 is installed in the adsorption member 46. The activated carbon adsorption net 461 can adsorb and purify toxic substances such as formaldehyde, as well as dust and dirt in the air, thereby purifying the air.

[0039] In this embodiment, the collection box 47 includes a guide plate 471, a chip removal plate 472 and a slide 473. The interior of the collection box 47 is fixed with a guide plate 471 that can discharge the collected fine chips. The interior of the collection box 47 is provided with a slide 473. The chip removal plate 472 is slidably fitted in the slide 473. The chip removal plate 472 can slide in the slide 473 to expose the bottom of the collection box 47, thereby discharging the collected dust and fine chips.

[0040] In this embodiment, one end of the chip removal plate 472 is also connected to a spring 474 . The springs 474 are symmetrically arranged and the other ends are connected to the collection box 47 . A pull rod 475 is provided between the two springs 474 , and one end of the pull rod 475 is located outside the collection box 47 .

[0041] Working principle: When the diaphragm carburetor is in use, the outside air is sucked in through the air intake channel 3. When the air passes through the air intake channel 3, it passes through the air filter device 4 on the air intake channel 3. With the help of the filter screen 444 and the activated carbon adsorption screen 461 installed on the air filter device 4, the incoming air can be filtered, and toxic substances such as formaldehyde, as well as dust and dirt in the air are adsorbed and purified, so as to prevent dust and impurities in the air from entering the carburetor pipeline and affecting the normal use of the carburetor.

[0042] Then, the control box 42 drives the driving gear 442 and the ball screw 451 in the installation box 41 to operate respectively, and the driving gear 442 is engaged with the gear to drive the outer gear 441 and the filter screen 444 located on the outer gear 441 to rotate. Since the outer gear 441 is engaged with the driven gear 443, the driven gear 443 can support the outer gear 441, and the operation of the ball screw 451 can drive the movable seat 453 to move up and down through the guide member. With the help of the cleaning brush 455 on one side of the movable seat 453, dust and impurities filtered and adhered to the filter screen 444 can be cleaned during movement. At the same time, since the filter screen 444 rotates under the drive of the driving gear 442, the cleaning brush 455 can clean the filter screen 444 more comprehensively when cleaning the filter screen 444.

[0043] The dust and debris cleaned by the filter 444 will fall into the collection box 47 at the bottom of the installation box 41 for collection, and by pulling the pull rod 475 outward, the pull rod 475 drives the chip removal plate 472 to slide in the slide groove 473, and squeezes the spring 474 while sliding. As the chip removal plate 472 moves, the bottom of the collection box 47 will be exposed, so that the collected fine debris can be discharged, and then the pull rod 475 is released, and the chip removal plate 472 will be reset under the elastic reset action of the spring 474 to reseal the bottom of the collection box 47.

[0044] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter device for a vacuum diaphragm carburetor, comprising a carburetor body (1), an adjustment handle (2) located on the carburetor body (1), an air intake passage (3) provided on one side of the carburetor body (1), an air filter device (4) installed on the air intake passage (3), and a float chamber (5) located at the bottom of the carburetor body (1); Its characteristics are: The air filter device (4) comprises an installation box (41), a control box (42) located on the installation box (41), a positioning hole (43) provided at the bottom of the installation box (41), a filter element (44), a cleaning element (45) and an adsorption element (46) installed in the installation box (41), and a collection box (47) located at the bottom of the installation box (41), wherein the filter element (44), the cleaning element (45) and the adsorption element (46) are arranged in sequence from left to right; The filter element (44) includes an external gear (441), a filter screen (444) located inside the external gear (441), a driving tooth (442) and a driven tooth (443) for meshing with a gear on the external gear (441); The collecting box (47) includes a guide plate (471), a guide plate (471) located inside the collecting box (47), a chute (473) provided inside the collecting box (47), and a chip removal plate (472) for slidingly cooperating with the chute (473); One end of the chip removal plate (472) is also connected to a spring (474), the springs (474) are symmetrically arranged and the other end is connected to the collection box (47), a pull rod (475) is provided between the two springs (474), and one end of the pull rod (475) is located outside the collection box (47).

2. The filter device for a vacuum diaphragm carburetor according to claim 1, characterized in that: The cleaning member (45) comprises a ball screw (451), a motor (452) located at the top of the ball screw (451), a movable seat (453) for slidingly cooperating with the ball screw (451) through a guide member, a sliding rod (454) located at the other end of the movable seat (453), and a cleaning brush (455) provided on one side of the movable seat (453).

3. The filter device for a vacuum diaphragm carburetor according to claim 2, characterized in that: The ball screw (451) and the slide rod (454) are both connected to the positioning hole (43) at the bottom of the installation box (41).

4. The filter device for a vacuum diaphragm carburetor according to claim 1, characterized in that: An activated carbon adsorption net (461) is installed in the adsorption member (46).

5. The filter device for a vacuum diaphragm carburetor according to claim 1, characterized in that: The driving teeth (442) and the driven teeth (443) are both connected to the mounting box (41).

6. The filter device for a vacuum diaphragm carburetor according to claim 1, characterized in that: The driven teeth (443) are provided with three and are rotationally matched with the mounting box (41).

7. The filter device for a vacuum diaphragm carburetor according to claim 2, characterized in that: The motor (452) is electrically connected and driven via the control box (42).

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