Air inlet device of carburetor

Abstract

The carburetor air inlet device comprises a shell, a filter plate and a cover plate, a first connecting pipe and a second connecting pipe which are communicated with the interior of the shell are formed on the shell, a penetrating opening is formed in the upper side wall of the shell, a mounting groove matched with the cover plate is formed in a port of the penetrating opening, and the filter plate is connected to the cover plate. A first sliding groove penetrating through the cover plate is formed in the cover plate, two clamping rods are symmetrically arranged in the first sliding groove in a penetrating mode, a second sliding groove communicated with the first sliding groove is formed in the outer side face of the cover plate, shifting blocks penetrating through the second sliding groove are formed at the ends of the clamping rods, and a spring is arranged between the two shifting blocks. Clamping holes matched with the ends of the clamping rods are formed in the inner wall of the mounting groove, the filter plate penetrates through the penetrating opening to be inserted into the shell, the cover plate is inserted into the mounting groove, and the ends of the clamping rods are clamped into the clamping holes under the action of the springs. According to the carburetor air inlet device, tools are not needed when the filter plate is replaced, the requirement for the operation space is smaller, and the operation of replacing the filter plate is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to carburetor technical field, especially a kind of carburetor air intake device. BACKGROUND

[0002] Carburetor is currently applied to motorcycle engine and agricultural machinery engine, carburetor is connected on the cylinder head of engine, its air intake pipe is connected with air cleaner, gasoline entering carburetor is mixed with air and transported to engine combustion, in order to strengthen the filtering effect of air entering carburetor, in prior art, for example, practical new type: a kind of carburetor with air intake filter mechanism (publication number: CN222084601U) discloses a filter mechanism installed in the air intake pipe of carburetor, air entering carburetor is filtered by filter plate and activated carbon adsorption plate provided in filter mechanism, but in the above structure, when filter plate or activated carbon adsorption plate needs to be replaced, screwdriver or other tools are needed to disassemble top cover, since there are many pipelines or mechanical components around carburetor after installation, it will interfere with the use of tools, leading to the inconvenience of filter plate replacement.

[0003] For the above problems, the utility model is improved. CONTENT OF UTILITY MODEL

[0004] The utility model provides a kind of carburetor air intake device, solve the above problems existing in prior art in the process of use.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of carburetor air intake device, including shell, filter plate and cover plate, the shell is formed with first connecting pipe and second connecting pipe with shell interior communication, the through insertion port is formed with the installation slot matched with cover plate on the shell upper side wall, the filter plate is connected on cover plate, the first sliding slot that passes through cover plate is opened in the cover plate, two clamping rods are symmetrically inserted in the first sliding slot, the second sliding slot that is communicated with the first sliding slot is opened in the cover plate outer side, the end of clamping rod is formed with the knob that passes through the second sliding slot, spring is arranged between two the knob, the clamping hole matched with the end of clamping rod is opened in the installation slot inner wall, the filter plate is inserted into shell through the through insertion port, the cover plate is inserted into installation slot, the end of clamping rod is clamped into clamping hole under the action of spring.

[0007] Preferably, the filter plate is formed with the connecting portion that the section is T type, the connecting slot that is communicated with the connecting portion and passes through cover plate to one side is opened in the cover plate inner side, the end port of connecting portion is inserted into connecting slot, the connection of filter plate and cover plate is realized.

[0008] Preferably, a limiting protrusion is formed on the side of the connecting part, a limiting groove matched with the limiting protrusion is formed on the inner wall of the connecting groove, and the limiting protrusion is clamped into the limiting groove when the connecting part is inserted into the connecting groove.

[0009] Preferably, a sealing pad is arranged on the bottom wall of the mounting groove, and the inner side of the cover plate abuts against the sealing pad.

[0010] Preferably, a fastening plate is rotatably connected to the shell, a clamping plate is formed at the free end of the fastening plate, a clamping groove is formed on the inner wall of the clamping plate, a clamping protrusion matched with the clamping groove is formed on the outer wall of the shell, and the fastening plate is abutted against the cover plate between the two knobs and in contact with the knobs when the end of the clamping rod is clamped into the clamping hole, so that the clamping protrusion is clamped into the clamping groove.

[0011] Preferably, two clamps surrounding the first connecting pipe are arranged on the circumferential side of the first connecting pipe, a limiting ring is formed on the inner wall of the clamp, and a limiting ring groove matched with the limiting ring is formed on the shell.

[0012] Preferably, an anti-skid pad is arranged on the inner wall of the clamp.

[0013] In summary, the beneficial effects of the present application are as follows: the end of the two clamping rods is driven out of the clamping hole by driving the two knobs, and then the cover plate is taken out of the mounting groove, and the filter plate is taken out of the shell, so that the replacement process of the filter plate does not require the use of tools, and the operation space required for operation is small, which is convenient for people to conveniently replace the filter plate in the limited space around the engine, and blind operation can be realized, thereby facilitating the operation of the filter plate replacement and facilitating the use of the air inlet device. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a structural schematic diagram of the present application;

[0016] Figure 2 is an exploded schematic diagram of the present application;

[0017] Figure 3 is a sectional schematic diagram of the present application;

[0018] Figure 4Another view of the cross section of the utility model is shown in the figure.

[0019] Figure 5 The structure diagram of the cover plate and the filter plate in the utility model is shown in the figure.

[0020] Figure 6 The structure diagram of the shell and the fastening plate in the utility model is shown in the figure.

[0021] In the figure: 1, shell; 11, first connecting pipe; 12, second connecting pipe; 13, through insertion opening; 14, mounting groove; 15, clamping hole; 17, sealing pad; 18, clamping protrusion; 19, limiting ring groove; 2, filter plate; 21, connecting part; 22, limiting protrusion; 3, cover plate; 31, first sliding groove; 32, second sliding groove; 33, connecting groove; 34, limiting groove; 4, clamping rod; 41, push block; 5, spring; 6, fastening plate; 61, clamping plate; 62, clamping groove; 7, clamp; 71, limiting ring; 72, anti-skid pad. DETAILED DESCRIPTION

[0022] The utility model will be described below in conjunction with the drawings of the embodiments of the utility model Figures 1-6 The technical solutions in the embodiments of the utility model are clearly and completely described, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] As shown in the figure, an air inlet device of carburetor, including shell 1, filter plate 2 and cover plate 3, the shell 1 is formed with the first connecting pipe 11 and the second connecting pipe 12 with the shell 1 inside communication, the shell 1 upper side wall is provided with the through insertion opening 13, the through insertion opening 13 port is formed with the mounting groove 14 matched with cover plate 3, the filter plate 2 is connected on cover plate 3, the cover plate 3 is provided with the first sliding groove 31 through cover plate 3 in, the first sliding groove 31 is provided with two clamping rods 4 in symmetry, the second sliding groove 32 in communication with the first sliding groove 31 is formed on the outer side of cover plate 3, the end of clamping rod 4 is formed with the push block 41 through the second sliding groove 32, the spring 5 is arranged between two push blocks 41, the clamping hole 15 matched with the end of clamping rod 4 is formed on the inner wall of mounting groove 14, the filter plate 2 is inserted into the shell 1 between the first connecting pipe 11 and the second connecting pipe 12 through the through insertion opening 13, the cover plate 3 is inserted into the mounting groove 14, the end of clamping rod 4 is clamped into the clamping hole 15 under the action of spring 5.

[0024] In the above structure, during installation, the first connecting pipe 11 is inserted into the air inlet of the carburetor, and the second connecting pipe 12 is connected with the air filter. The air in the air filter enters the shell 1 through the second connecting pipe 12, is filtered by the filter plate 2, and then enters the carburetor through the first connecting pipe 11. The purity of the air entering the carburetor is improved through the further filtering of the filter plate 2. When the filter plate 2 needs to be replaced after long-term use, the two push blocks 41 are simultaneously pushed by hand to drive the two clamping rods 4 to move towards each other and compress the spring 5, so that the end of the clamping rod 4 is withdrawn from the clamping hole 15 and retracted into the first sliding groove 31. At this time, the cover plate 3 can be taken out of the installation groove 14 to take out the filter plate 2 from the shell 1 for replacement. When installing the filter plate 2, the filter plate 2 is inserted into the shell 1 through the installation groove 14 and the insertion hole 13. After the cover plate 3 is inserted into the installation groove 14, the end of the connecting rod is clamped into the clamping hole 15 under the restoring force of the spring 5. The cover plate 3 is kept in the installation groove 14 through the cooperation of the clamping hole 15 and the clamping rod 4, so that the filter plate 2 is kept in the shell 1, and the installation of the filter plate 2 is realized. The above-mentioned replacement process of the filter plate 2 does not require the use of tools, and the operation space required for operation is small, which is convenient for people to conveniently replace the filter plate 2 in the limited space around the engine, and can realize blind operation, thereby facilitating the operation of replacing the filter plate 2 and facilitating the use of the air inlet device. In order to facilitate the operation of installing the filter plate 2, the end of the connecting rod is in the form of a plug. During the process of inserting the cover plate 3 into the installation groove 14, the connecting rod is automatically retracted under the top of the installation groove 14, thereby facilitating the operation of installing the filter plate 2.

[0025] Further, the structure of the connection between the filter plate 2 and the cover plate 3: a connecting part 21 in T-shaped cross section is formed on the filter plate 2, a connecting groove 33 matching the connecting part 21 and penetrating the cover plate 3 to one side is formed on the inner side of the cover plate 3, and the connecting part 21 is inserted into the connecting groove 33 through the port of the connecting groove 33, thereby realizing the connection between the filter plate 2 and the cover plate 3. The structure of the connection between the filter plate 2 and the cover plate 3 enables the filter plate 2 and the cover plate 3 to be very conveniently disassembled and assembled, thereby further facilitating the operation of replacing the filter plate 2.

[0026] Further, a limiting protrusion 22 is formed on the side surface of the connecting part 21, and a limiting groove 34 matching the limiting protrusion 22 is formed on the inner wall of the connecting groove 33. When the connecting part 21 is inserted into the connecting groove 33, the limiting protrusion 22 is clamped into the limiting groove 34. The limiting protrusion 22 and the limiting groove 34 cooperate to limit the sliding of the connecting part 21 in the connecting groove 33, thereby enhancing the stability of the connection between the filter plate 2 and the cover plate 3. When the filter plate 2 is disassembled, the filter plate 2 and the cover plate 3 are kept connected to prevent the filter plate 2 from being detached from the cover plate 3.

[0027] Further, the bottom wall of the installation groove 14 is provided with a sealing pad 17, and the inner side of the cover plate 3 abuts against the sealing pad 17, so that the air tightness of the air inlet device as a whole is enhanced after the filter plate 2 is installed, and the air inlet efficiency is ensured.

[0028] Further, in order to enhance the stability of the filter plate 2 after installation, the shell 1 is rotatably connected with a fastening plate 6, the free end of the fastening plate 6 is formed with a clamping plate 61, the inner wall of the clamping plate 61 is provided with a clamping groove 62, the outer wall of the shell 1 is formed with a clamping protrusion 18 matched with the clamping groove 62, when the end of the clamping rod 4 is clamped into the clamping hole 15, the fastening plate 6 can abut against the cover plate 3 between the two toggle blocks 41 and abut against the toggle blocks 41, so that the clamping protrusion 18 is clamped into the clamping groove 62, the clamping protrusion 18 and the clamping groove 62 cooperate to limit the swing of the fastening plate 6, so that the fastening plate 6 is stably kept in the position abutting against the cover plate 3 to limit the cover plate 3, and the cover plate 3 is more stably kept in the installation groove 14, and after the fastening plate 6 abuts against the toggle blocks 41 between the two toggle blocks 41, the fastening plate 6 limits the sliding of the toggle blocks 41 in the second sliding groove 32, and further limits the sliding of the clamping rod 4 in the first sliding groove 31, so that the end of the clamping rod 4 is more stably kept in the clamping hole 15, and the stability of the cover plate 3 after being inserted into the installation groove 14 is enhanced, so that the stability of the filter plate 2 after installation is enhanced, and when the filter plate 2 is disassembled, the clamping protrusion 18 is first disengaged from the clamping groove 62 by swinging the fastening plate 6, and then the above-mentioned disassembly operation of the filter plate 2 can be performed, which is very convenient.

[0029] Further, the first connecting pipe 11 is provided with two clamps 7 surrounding the first connecting pipe 11, the inner wall of the clamp 7 is formed with a limiting ring 71, and the shell 1 is provided with a limiting ring groove 19 matched with the limiting ring 71, the limiting ring 71 is inserted into the limiting ring groove 19, and after the first connecting pipe 11 is inserted into the air inlet of the carburetor, the two clamps 7 are located on the outer wall of the air inlet of the carburetor, the limiting ring 71 and the limiting ring groove 19 cooperate to limit the axial movement of the clamp 7 relative to the shell 1, then the two clamps 7 are fastened by bolts, so that the two clamps 7 are cooperatively clamped on the outer wall of the air inlet of the carburetor, thereby enhancing the stability of the connection between the shell 1 and the carburetor, and the stability of the connection between the air inlet device and the carburetor is also enhanced, and the position of the connecting lug of the clamp 7 can be adjusted by rotating the limiting ring 71 in the limiting ring groove 19, which facilitates the operation of fastening the two clamps 7, and the shell 1 is connected with the carburetor by being inserted into the air inlet of the carburetor through the connecting pipe, so that the orientation of the installation groove 14 can be adjusted by rotating the shell 1 during installation, the installation groove 14 is oriented towards the area around the engine which has a larger space, and the subsequent replacement operation of the filter plate 2 is facilitated, and the applicability is better.

[0030] Further, the inner wall of the clamp 7 is provided with an anti-skid pad 72, and the friction between the clamp 7 and the carburetor is enhanced when the clamp 7 holds the outer wall of the air inlet of the carburetor, thereby further enhancing the stability of the connection between the air inlet device and the carburetor.

[0031] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A carburetor air intake device comprising a housing (1), a filter plate (2) and a cover plate (3), characterized in that: The shell (1) is provided with a first connecting pipe (11) and a second connecting pipe (12) which are communicated with the inside of the shell (1), a through insertion opening (13) is formed on the upper side wall of the shell (1), an installation groove (14) matched with the cover plate (3) is formed on the port of the through insertion opening (13), the filter plate (2) is connected to the cover plate (3), a first sliding groove (31) penetrating the cover plate (3) is formed in the cover plate (3), two clamping rods (4) are symmetrically arranged in the first sliding groove (31), a second sliding groove (32) communicated with the first sliding groove (31) is formed on the outer side of the cover plate (3), a pushing block (41) penetrating the second sliding groove (32) is formed on the end of the clamping rod (4), a spring (5) is arranged between the two pushing blocks (41), a clamping hole (15) matched with the end of the clamping rod (4) is formed on the inner wall of the installation groove (14), the filter plate (2) is inserted into the shell (1) through the through insertion opening (13), the cover plate (3) is inserted into the installation groove (14), and the end of the clamping rod (4) is clamped into the clamping hole (15) under the action of the spring (5).

2. The carburetor air intake device of claim 1, wherein: A connecting part (21) with a T-shaped cross section is formed on the filter plate (2), a connecting groove (33) matched with the connecting part (21) and penetrating the cover plate (3) to one side is formed on the inner side of the cover plate (3), and the end of the connecting part (21) penetrating the connecting groove (33) is inserted into the connecting groove (33), so that the filter plate (2) and the cover plate (3) are connected.

3. The carburetor air intake device of claim 2, wherein: A limiting protrusion (22) is formed on the side of the connecting part (21), a limiting groove (34) matched with the limiting protrusion (22) is formed on the inner wall of the connecting groove (33), and when the connecting part (21) is inserted into the connecting groove (33), the limiting protrusion (22) is clamped into the limiting groove (34).

4. The carburetor air intake device of claim 3, wherein: A sealing pad layer (17) is arranged on the bottom wall of the installation groove (14), and the inner side of the cover plate (3) is tightly abutted on the sealing pad layer (17).

5. The carburetor air intake device of claim 4, wherein: A fastening plate (6) is rotatably connected to the shell (1), a clamping plate (61) is formed on the free end of the fastening plate (6), a clamping groove (62) is formed on the inner wall of the clamping plate (61), a clamping protrusion (18) matched with the clamping groove (62) is formed on the outer wall of the shell (1), when the end of the clamping rod (4) is clamped into the clamping hole (15), the fastening plate (6) can be swingingly abutted on the cover plate (3) between the two pushing blocks (41) and abutted against the pushing blocks (41), so that the clamping protrusion (18) is clamped into the clamping groove (62).

6. The carburetor air intake device of claim 5, wherein: Two clamps (7) surrounding the first connecting pipe (11) are arranged on the circumferential side of the first connecting pipe (11), a limiting ring (71) is formed on the inner wall of the clamp (7), and a limiting ring (71) groove matched with the limiting ring (71) is formed on the shell (1), and the limiting ring (71) is inserted into the limiting ring (71) groove.

7. The carburetor air intake device of claim 6, wherein: An antiskid pad layer (72) is arranged on the inner wall of the clamp (7).

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