Plunger structure for carburetor

Abstract

The plunger structure for the carburetor comprises a plunger body, the plunger body comprises a limiting groove and a needle oil groove, an arc-shaped adjustable balance sliding block is arranged on the side face of the plunger body and comprises a sliding block, an adjusting disc and an adjusting screw rod, the arc-shaped limiting groove is formed in the surface of the adjusting disc, and needle oil limiting devices are arranged on the two sides of the needle oil groove. The needle oil limiting device comprises a chuck and a limiting spring; the adjustable balance sliding blocks are arranged on the two sides of the plunger body, the adjusting disc is rotated through the adjusting screw rod, so that the sliding blocks are driven to stretch out or retract, the two sides of the plunger are attached to the surface of a carburetor plunger groove, the position of the plunger and the position of a plunger groove opening of the carburetor are balanced, and stable rotary lifting movement of the plunger is facilitated. The needle oil limiting device is arranged, after the oil needle is placed in the needle oil groove, the oil needle can be limited through the chuck, the limiting effect is good, and the oil needle is not prone to falling off.

Description

Technical Field

[0001] The utility model relates to a plunger structure for a carburetor, belonging to the field of carburetor plungers. Background Art

[0002] The carburetor is a mechanical device that mixes a certain proportion of gasoline and air under the vacuum generated by the engine. As a precision mechanical device, the carburetor uses the kinetic energy of the inhaled air flow to atomize the gasoline. Its important role in the engine can be called the "heart" of the engine. Its complete device should include a starting device, an idle device, a medium load device, a full load device, and an acceleration device. The carburetor will automatically mix the corresponding concentration and output the corresponding amount of mixed gas according to the different working state requirements of the engine. In order to make the mixed gas mixed more evenly, the carburetor also has the effect of atomizing the fuel for the normal operation of the machine.

[0003] The function of the plunger is to open the carburetor throttle by utilizing the rotation and lifting motion of the plunger. However, the existing plunger will tilt during the rotation and lifting motion, which makes the plunger inflexible and easy to get stuck, so that the throttle cannot be opened smoothly. In addition, the plunger fixes the oil needle with a buckle to restrict it, which is easy to loosen and fall, resulting in the oil needle not being fixed, which is quite troublesome. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a plunger structure for a carburetor to solve the problem that the existing plunger will tilt during its rotation and lifting movements, causing the plunger to be inflexible and easily stuck, so that the throttle cannot be opened smoothly, and the plunger fixes the oil needle with a buckle to restrict it, which is easy to loosen and fall, resulting in the problem that the oil needle is not fixed.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a plunger structure for a carburetor, comprising a plunger body, the plunger body comprising a limit groove and a needle oil groove, an arc-shaped adjustable balancing slider is arranged on the side of the plunger body, the balancing slider comprises a slider, an adjusting disk, and an adjusting screw, the surface of the adjusting disk is provided with an arc-shaped limit groove, the inner side of the slider is provided with a connecting rod, one end of the connecting rod is limitedly slidably connected with the arc-shaped limit groove, the connecting rod surface at the bottom of the adjusting screw is provided with a thread and is screwed to the inside of the plunger body, and the bottom is provided with meshing teeth and is meshed with the meshing head of the connecting rod at the top of the adjusting disk through the meshing teeth, needle oil limiting devices are arranged on both sides of the needle oil groove, and the needle oil limiting devices include a clamp and a limiting spring; the above-mentioned can adjust the extension distance of the slider through the adjustable balancing slider, so that the slider can be more closely fitted with the plunger groove of the carburetor and move more smoothly; on the other hand, the oil needle can also be limited in position by the needle oil limiting device to prevent the oil needle from loosening and moving.

[0006] Furthermore, a circular slider matching with the arc-shaped limiting groove is arranged on the top of one end of the connecting rod and is slidably connected with the arc-shaped limiting groove through the circular slider; when the arc-shaped limiting groove rotates, the circular slider can be driven to move through the notch.

[0007] Furthermore, a limiting slot is provided at the connection between the connecting rod and the surface wall of the plunger body, and the slider is connected to the adjusting disk by passing through the limiting slot at one end of the connecting rod; the above plays a limiting role and can stably extend and retract the connecting rod.

[0008] Furthermore, the longest rotation distance of the adjusting screw is smaller than the distance between the bottom of the meshing teeth and the surface of the adjusting disk; the top head of the adjusting screw is affected by the size of the notch of the thread groove inside the plunger body, so that when the adjusting screw is rotated downward, when the top head of the adjusting screw rotates to the top of the thread groove, it is stuck by the thread groove, limiting the downward rotation length of the adjusting screw, so that when the adjusting screw reaches the bottom, the bottom will not affect the rotation of the adjusting disk.

[0009] Furthermore, a limiting clamping groove matching with the surface pattern of the oil needle connector is arranged on the inner side of the clamping head; the above can be used to increase the friction force, and the oil needle connector can be more closely restricted, and the restricting effect is stable.

[0010] Furthermore, a sliding groove is provided on the top surface of the plunger body, and the chuck is fixedly connected to the connecting head at one end of the limit spring through a connecting rod; the above can make the connecting rod of the plunger body move in the sliding groove, thereby facilitating the adjustment of the chuck, and when installing the oil needle, the chuck can be swung open by a tool to facilitate the placement of the oil needle.

[0011] Furthermore, the width of the slot at the top of the sliding slot is smaller than the diameter of the limit spring; the above serves to limit the limit spring.

[0012] Furthermore, fitting grooves for placing sliders are provided on both sides of the plunger body, and when the slider is in the initial position, the outer surface of the slider and the surface of the plunger body are in a vertical line; the above facilitates the installation of the plunger body and the plunger groove of the carburetor.

[0013] Beneficial Effects

[0014] The utility model discloses a plunger structure for a carburetor:

[0015] 1. Adjustable balancing sliders are arranged on both sides of the plunger body. The adjusting screw is used to rotate the adjusting disk, thereby driving the slider to extend or retract, so that both sides of the plunger fit the surface of the carburetor plunger groove, so that the position of the plunger and the plunger groove of the carburetor are balanced, which is conducive to the stable rotation and lifting movement of the plunger;

[0016] 2. A needle oil limit device is provided. After the oil needle is placed in the needle oil groove, the oil needle can be limited by the chuck. The limiting effect is good and it is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is a schematic diagram of the plunger main body structure of a plunger structure for a carburetor of the utility model;

[0019] Figure 2 This is a schematic diagram of the expanded structure of a plunger for a carburetor according to the utility model;

[0020] Figure 3 It is an enlarged structural schematic diagram of A of a plunger structure for a carburetor of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a balancing slider of a plunger structure for a carburetor according to the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a balance slider portion of a plunger structure for a carburetor according to the utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of a plunger body of a plunger structure for a carburetor of the utility model;

[0024] Figure 7 It is an enlarged structural schematic diagram of B of a plunger structure for a carburetor of the utility model.

[0025] In the figure: plunger body -1, balancing slider -2, needle oil limit device -3, limit groove -11, needle oil groove -12, sliding groove -13, limit slide groove -14, slider -21, adjusting disk -22, adjusting screw -23, chuck -31, limit spring -32, connecting rod -211, arc limit groove -221, meshing tooth -231, limit clamp groove -311, circular slider -2111. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] like Figure 1-5 As shown, a plunger structure for a carburetor comprises a plunger body 1, the plunger body 1 comprises a limiting groove 11 and a needle oil groove 12, and is characterized in that an arc-shaped adjustable balancing slider 2 is arranged on the side of the plunger body 1, the balancing slider 2 comprises a slider 21, an adjusting disk 22, and an adjusting screw 23, the surface of the adjusting disk 22 is provided with an arc-shaped limiting groove 221, a connecting rod 211 is arranged on the inner side of the slider 21, one end of the connecting rod 211 is limitedly slidably connected with the arc-shaped limiting groove 221, a connecting rod surface at the bottom of the adjusting screw 23 is provided with a thread and is screwed to the inside of the plunger body 1, and a meshing tooth 231 is arranged at the bottom and is meshed with the connecting rod meshing head at the top of the adjusting disk 22 through the meshing tooth 231, needle oil limiting devices 3 are arranged on both sides of the needle oil groove 12, and the needle oil limiting device 3 comprises a clamp 31 and a limiting spring 32; a connecting rod 211 is provided at the top of one end thereof with a meshing tooth 231 which is meshed with the arc-shaped limiting groove 22 1 and is slidably connected with the arc-shaped limiting groove 221 through the circular slider 2111; a limiting slide groove 14 is arranged at the connection between the connecting rod 211 and the surface wall of the plunger body 1, and the slider 21 is connected to the adjusting disk 22 through one end of the connecting rod 211 passing through the limiting slide groove 14; the longest rotation distance of the adjusting screw 23 is less than the distance between the bottom of the meshing tooth 231 and the surface of the adjusting disk 22; a limiting clamping groove 311 matching the surface pattern of the oil needle connector is arranged on the inner side of the chuck 31; a sliding groove 13 is arranged on the top surface of the plunger body 1, and the chuck 31 is fixedly connected with the connector at one end of the limiting spring 32 through the connecting rod; the width of the top notch of the sliding groove 13 is less than the diameter of the limiting spring 32; fitting grooves for placing the slider 21 are arranged on both sides of the plunger body 1, and when the slider 21 is in the initial position, the outer surface of the slider 21 and the surface of the plunger body 1 are on a vertical straight line.

[0029] In this embodiment, the above-mentioned can be balanced in position with the plunger slot of the carburetor through the balancing slider 2. It rotates the adjusting screw 23 to make the adjusting screw 23 rotate downward. At this time, since the connecting rod surface at the bottom of the adjusting screw 23 is provided with a thread and is threadedly connected to the inside of the plunger body 1, the adjusting disk 22 can be driven to rotate. When the arc-shaped limiting groove 221 on the surface of the adjusting disk 22 rotates, it will drive the circular slider 2111 to move through the slot, and the circular slider 2111 will drive the connecting rod 211 to extend outward, so that the slider 21 extends outward, so that the distance between the slider 21 and the carburetor plunger slot can be adjusted, which is beneficial to the lifting and lowering movement of the plunger. The plunger body 1 is provided with an internal thread 15, and the internal thread 15 is threadedly connected to the thread on the connecting rod surface at the bottom of the adjusting screw 23; on the other hand, a needle oil limiting device 3 is provided, and the position of the oil needle can be limited by the chuck 31, which is more stable than the V-shaped buckle.

[0030] Embodiment 2

[0031] The utility model discloses a high-efficiency sand washing machine for producing machine-made sand. Three balancing sliding blocks 2 are arranged, which are respectively arranged at two sides of a plunger body 1 and at the rear side of the plunger body 1 .

[0032] As mentioned above, by arranging the balancing sliders 2 at three positions of the plunger body 1, the three sides of the balancing sliders 2 can be adjusted, so that the balancing sliders 2 can be balanced with the plunger slot of the carburetor, and the balancing effect is better and more stable.

[0033] Working principle:

[0034] When in use, it rotates the adjusting screw 23 to make the adjusting screw 23 rotate downward. At this time, since the connecting rod surface at the bottom of the adjusting screw 23 is provided with a thread and is screwed to the inside of the plunger body 1, the adjusting disk 22 can be driven to rotate. When the arc-shaped limiting groove 221 on the surface of the adjusting disk 22 rotates, it will drive the circular slider 2111 to move through the groove, and the circular slider 2111 will drive the connecting rod 211 to extend outward, so that the slider 21 extends outward, so that the distance between the slider 21 and the carburetor plunger groove can be adjusted, which is beneficial to the lifting and lowering movement of the plunger. The plunger body 1 is provided with an internal thread 15, and the internal thread 15 is screwed to the connecting rod surface at the bottom of the adjusting screw 23. Threaded connection; on the other hand, a needle oil limiting device 3 is provided, and the position of the oil needle can be limited by a chuck 31, wherein the oil needle is limited by a limiting spring 32, which is more stable than a V-shaped buckle; adjustable balancing sliders 2 are provided on both sides of the plunger body 1, and the adjusting disk 22 is rotated by adjusting the screw 23, thereby driving the slider 21 to extend or retract, so that the two sides of the plunger fit the surface of the carburetor plunger groove, so that the plunger and the plunger groove of the carburetor are balanced in position, which is conducive to the stable rotation and lifting movement of the plunger; a needle oil limiting device 3 is provided, and the chuck 31 can be used to limit the oil needle after the oil needle is placed in the needle oil groove, so that the limiting effect is good and it is not easy to fall off.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plunger structure for a carburetor, comprising a plunger body (1), wherein the plunger body (1) comprises a limit groove (11) and a needle oil groove (12), characterized in that: An arc-shaped adjustable balancing slider (2) is arranged on the side of the plunger body (1), and the balancing slider (2) comprises a slider (21), an adjusting disk (22), and an adjusting screw (23). An arc-shaped limiting groove (221) is arranged on the surface of the adjusting disk (22). A connecting rod (211) is arranged on the inner side of the slider (21), and one end of the connecting rod (211) is connected to the arc-shaped limiting groove (221) in a limiting sliding manner. A connecting rod surface at the bottom of the adjusting screw (23) is provided with a thread and is screwed to the inside of the plunger body (1), and a meshing tooth (231) is arranged at the bottom and is meshed with the meshing head of the connecting rod at the top of the adjusting disk (22) through the meshing tooth (231). Needle oil limiting devices (3) are arranged on both sides of the needle oil groove (12), and the needle oil limiting device (3) comprises a clamp (31) and a limit spring (32).

2. A carburetor plunger structure according to claim 1, characterized in that: A circular sliding block (2111) matching with the arc-shaped limiting groove (221) is arranged at the top of one end of the connecting rod (211), and is slidably connected with the arc-shaped limiting groove (221) via the circular sliding block (2111).

3. A carburetor plunger structure according to claim 1, characterized in that: A limiting sliding groove (14) is provided at the connection point between the connecting rod (211) and the surface wall of the plunger body (1), and the sliding block (21) is connected to the adjusting disk (22) by passing through the limiting sliding groove (14) at one end of the connecting rod (211).

4. A carburetor plunger structure according to claim 1, characterized in that: The longest rotation distance of the adjusting screw (23) is smaller than the distance between the bottom of the meshing teeth (231) and the surface of the adjusting disk (22).

5. A carburetor plunger structure according to claim 1, characterized in that: The inner side of the clamp (31) is provided with a limit clamp groove (311) matching with the surface pattern of the oil needle connector.

6. A carburetor plunger structure according to claim 1, characterized in that: The top surface of the plunger body (1) is provided with a sliding groove (13), and the clamp (31) is fixedly connected to a connecting head at one end of a limit spring (32) via a connecting rod.

7. A carburetor plunger structure according to claim 6, characterized in that: The width of the top notch of the sliding slot (13) is smaller than the diameter of the limit spring (32).

8. A carburetor plunger structure according to claim 1, characterized in that: Fitting grooves for placing the slider (21) are arranged on both sides of the plunger body (1), and when the slider (21) is in an initial position, the outer surface of the slider (21) and the surface of the plunger body (1) are located on a vertical straight line.

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