Shaping device of accelerating pump packing cup for carburetor

Abstract

The utility model relates to the field of accelerating pumps for carburetors, and discloses a shaping device of an accelerating pump cup for a carburetor, which comprises a pump cup body, a shaping mechanism is arranged on the outer side of the pump cup body, the shaping mechanism comprises a shaping assembly and a connecting assembly, the shaping assembly comprises a fixing ring, and the fixing ring is connected with the connecting assembly. The fixing ring is inserted into the inner wall of the lower portion of the pump packing cup body, the upper portion of the fixing ring is fixedly connected with an inserting column, the inserting column penetrates through the inner wall of the pump packing cup body in a sliding mode, a connecting ring is inserted into the outer wall of the upper side of the inserting column, the lower side of the connecting ring is attached to the outer side of the pump packing cup body, and the inner wall of the connecting ring is slidably connected with a limiting ring. According to the pump packing cup, the shaping mechanism and the pump packing cup body are used in cooperation, when the pump packing cup works, the periphery of the pump packing cup body can be limited through the shaping mechanism, and therefore deformation of the pump packing cup body is effectively prevented, and the maintenance cost of equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to carburetor with acceleration pump field especially relates to a kind of shaping device of pump cup for carburetor with acceleration. BACKGROUND

[0002] Pump cup is used in the acceleration pump structure of some carburetors, and the function of the acceleration pump is to spray extra fuel into the throat when the throttle is suddenly opened, enrich the mixture, and quickly increase the engine speed.

[0003] Pump cup is a key component in the acceleration pump, which is usually installed in the cylinder of the acceleration pump. Its working principle is that when the connecting rod of the acceleration pump moves, it drives the pump cup to move in the cylinder, causing the pressure in the fuel cavity on one side of the pump cup to change, thereby spraying fuel into the carburetor throat through the nozzle of the acceleration pump.

[0004] Pump cup is generally made of oil-resistant rubber and other materials, which can ensure good elasticity, sealing and wear resistance in fuel environment, to effectively complete the fuel pumping action. Since the pump works, the internal fuel pressure will change frequently and quickly, and it will also be affected by mechanical vibration and environmental heat generated by engine operation, causing the pump cup to deform, so the pump cup needs to be maintained and replaced. To solve the above problems, a shaping device for pump cup for carburetor with acceleration is proposed. SUMMARY

[0005] To make up for the above shortcomings, the utility model provides a kind of shaping device of pump cup for carburetor with acceleration, to improve the problem of "due to the influence of pump in working, leading to pump cup deformation, the pump cup needs to be maintained and replaced" in prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a kind of shaping device of pump cup for carburetor with acceleration, including pump cup body, the pump cup body outside is provided with shaping mechanism, the shaping mechanism includes shaping assembly and connecting assembly, the shaping assembly includes fixed ring, the fixed ring is inserted in the lower inner wall of pump cup body, the fixed ring upper portion is fixedly connected with the plug-in post, the plug-in post is slid in the inner wall of pump cup body, the plug-in post upper side outer wall is inserted with connecting ring, the connecting ring lower side is attached to the outside of pump cup body, the connecting ring inner wall is slidably connected with limit ring, the plug-in post outside is provided with the gap, the limit ring is inserted in the gap inside, the limit ring upper portion is fixedly connected with fixed seat one, the connecting ring outside is fixedly connected with fixed seat two, the fixed seat two is slid in the limit ring inside, the fixed seat one and fixed seat two are fixedly installed by fastening bolt.

[0007] Further description of the above technical scheme:

[0008] The connecting assembly comprises a stabilizing column, the stabilizing column is inserted into the inner wall of the limiting ring, a baffle is fixedly connected to the outer side of the stabilizing column, a clamping groove is formed in the lower outer side of the stabilizing column, and a protruding plate is arranged on the outer side of the limiting ring and is inserted into the inner wall of the clamping groove.

[0009] As a further description of the above technical solution:

[0010] A limiting groove is formed in the upper part of the limiting ring.

[0011] As a further description of the above technical solution:

[0012] The insertion column is inserted into the inner side of the limiting groove.

[0013] As a further description of the above technical solution:

[0014] The insertion column is provided in multiple groups, and the multiple groups of insertion columns are uniformly arranged with the center of the fixing ring as a center point.

[0015] As a further description of the above technical solution:

[0016] The lower part of the connecting ring is made of rubber.

[0017] As a further description of the above technical solution:

[0018] The fixing ring and the insertion column are made of aluminum alloy.

[0019] As a further description of the above technical solution:

[0020] The baffle is attached to the outer side of the upper part of the pump skin bowl body.

[0021] The utility model has the advantages of the following:

[0022] 1、The utility model discloses a pump skin bowl body limiting device, which comprises a fixing ring, a limiting ring, a stabilizing column, a baffle and an insertion column.

[0023] 2、The utility model discloses a pump skin bowl body limiting device, which comprises a fixing ring, a limiting ring, a stabilizing column, a baffle and an insertion column. DRAWINGS

[0024] Figure 1 It is the three-dimensional structure schematic diagram of the whole device in the utility model;

[0025] Figure 2 It is the three-dimensional structure schematic diagram of the whole device in the utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the disassembled integral device in this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram showing the disassembled connecting ring and limiting ring in this utility model.

[0028] Legend:

[0029] 1. Pump cup body; 21. Fixing ring; 22. Insert post; 23. Connecting ring; 24. Limiting ring; 25. Limiting groove; 26. Fixing seat one; 27. Fixing seat two; 28. Fastening bolt; 31. Stabilizing column; 32. Slot; 33. Baffle; 34. Protruding plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a shaping device for a carburetor accelerator pump cup, comprising a pump cup body 1, a key component of the carburetor accelerator pump, whose main function is to draw and deliver fuel during pump operation to meet the additional fuel demand of the carburetor under acceleration conditions. A shaping mechanism is provided on the outer side of the pump cup body 1, comprising a shaping component and a connecting component. The shaping component includes a fixing ring 21, which provides a stable basic support structure for the entire shaping component. Its function is to fix the insert 22 and, through a tight fit with the lower inner wall of the pump cup body 1, limit excessive deformation of the pump cup body 1 in the bottom direction, ensuring the shape and dimensional stability of the bottom of the pump cup. The fixing ring 21 is inserted into the lower inner wall of the pump cup body 1, and the upper part of the fixing ring 21 is fixedly connected to the insert 22, with multiple sets of inserts 22 provided.

[0032] Reference Figure 2 and Figure 4, multiple groups of the inserting posts 22 are evenly arranged with the center of the fixing ring 21 as the center point, which can provide support in the radial direction of the pump bowl body 1, when the pump bowl body 1 has a tendency to expand outward or deform irregularly due to internal pressure or external impact, the inserting posts 22 can effectively limit the deformation, the inserting posts 22 slide in the inner wall of the pump bowl body 1, the upper outer wall of the inserting posts 22 is inserted with the connecting ring 23, which cooperates with the inserting posts 22 and the limiting ring 24 to further enhance the limiting effect on the pump bowl body 1, the lower part of the connecting ring 23 is made of rubber material, which has certain flexibility and friction, and can better fit the outer surface of the pump bowl body 1, increase the sealing performance, and the lower side of the connecting ring 23 is attached to the outer side of the pump bowl body 1.

[0033] Further, the limiting ring 24 is slidably connected to the inner wall of the connecting ring 23, and can limit and fix the inserting posts 22 and the stabilizing column 31 by rotating, the outer side of the inserting posts 22 is provided with an opening, which cooperates with the limiting ring 24 to limit and fix the inserting posts 22 and the fixing ring 21, the limiting ring 24 is inserted into the inner side of the opening, the upper part of the limiting ring 24 is fixedly connected with the first fixing seat 26, the outer side of the connecting ring 23 is fixedly connected with the second fixing seat 27, the second fixing seat 27 slides in the inner side of the limiting ring 24, and the first fixing seat 26 and the second fixing seat 27 are fixedly installed through the fastening bolts 28, which tightly connect the limiting ring 24, the inserting posts 22 and the connecting ring 23 together to form a stable and shaped structure frame, which ensures the relative position stability between the components, and facilitates disassembly and assembly of the shaped mechanism during installation and maintenance, thereby improving the maintainability of the equipment.

[0034] Referring to Figure 1 and Figure 3 , the connecting assembly comprises the stabilizing column 31, the stabilizing column 31 is inserted into the inner wall of the limiting ring 24, the outer side of the stabilizing column 31 is fixedly connected with the baffle 33, the baffle 33 is attached to the outer side of the upper part of the pump bowl body 1 to limit the pump bowl body 1, and further prevent the deformation of the outer side of the pump bowl body 1, the lower outer side of the stabilizing column 31 is provided with the clamping groove 32, which cooperates with the lug plate 34 on the outer side of the limiting ring 24 to realize the quick connection and fixation of the stabilizing column 31 and the limiting ring 24, during installation, only need to insert the lug plate 34 into the clamping groove 32 to complete the positioning of the stabilizing column 31, which is convenient for subsequent overall fixation through the fastening bolts 28, thereby improving the installation efficiency of the device, and the outer side of the limiting ring 24 is provided with the lug plate 34, which is inserted into the inner wall of the clamping groove 32.

[0035] Further, the limiting groove 25 is formed through the upper part of the limiting ring 24 and accommodates the inserting column 22, so as to be inserted into the inner wall of the gap, limiting the vertical displacement of the inserting column 22, and ensuring that the inserting column 22 can always stably support and limit the pump skin bowl body 1 during the working process, improving the reliability and stability of the shaping mechanism. The inserting column 22 is inserted into the inner side of the limiting groove 25, and the fixing ring 21 and the inserting column 22 are made of aluminum alloy material, which has sufficient structural strength to effectively support and limit the pump skin bowl body 1, and the relatively light weight will not bring too much additional burden to the pump skin bowl body 1, avoiding affecting the elastic performance and overall working efficiency of the pump skin bowl due to the excessive weight of the parts, and ensuring that the pump can work flexibly and stably during the running process.

[0036] Working principle: in use, before the pump skin bowl is installed, the fixing ring 21 is tightly inserted into the inner wall of the lower part of the pump skin bowl body 1, and the multiple groups of inserting columns 22 on the upper part are penetrated through the inner wall of the pump skin bowl body 1, then the connecting ring 23 is sleeved on the outer wall of the upper side of the inserting column 22, and the lower side of the connecting ring 23 is attached to the outer side of the pump skin bowl body 1. At this time, the rubber material on the lower part of the connecting ring 23 plays a role, and better attaches to the pump skin bowl body 1 by virtue of its flexibility and friction, thereby enhancing the sealing performance.

[0037] Then, the limiting ring 24 is fixed and connected with the fixing seat two 27 on the outer side of the connecting ring 23 through the fixing seat one 26 on the upper part of the limiting ring 24 by means of the fastening bolt 28. In this process, the limiting ring 24 is inserted into the gap on the outer side of the inserting column 22, limiting the vertical displacement of the inserting column 22, so that the inserting column 22 can stably support and limit the pump skin bowl body 1 during the working process, preventing excessive deformation of the pump skin bowl body 1 in the radial direction.

[0038] At the same time, the stabilizing column 31 in the connecting assembly is inserted into the inner wall of the limiting ring 24, and the baffle 33 on the outer side thereof is attached to the outer side of the upper part of the pump skin bowl body 1, limiting the pump skin bowl body 1 from above, further preventing the deformation of the pump skin bowl body 1. The clamping groove 32 on the outer side of the lower part of the stabilizing column 31 is inserted into the convex plate 34 on the outer side of the limiting ring 24, realizing the quick connection and fixation of the stabilizing column 31 and the limiting ring 24, facilitating the positioning of the stabilizing column 31 during the installation process, and improving the installation efficiency of the entire shaping device.

[0039] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A shaping device for the accelerator pump bowl of a carburettor, comprising a pump bowl body (1), characterised in that: The pump skin bowl body (1) is provided with a shaping mechanism outside, the shaping mechanism comprises a shaping assembly and a connecting assembly, the shaping assembly comprises a fixed ring (21), the fixed ring (21) is inserted in the lower inner wall of the pump skin bowl body (1), the upper portion of the fixed ring (21) is fixedly connected with a plug-in post (22), the plug-in post (22) is slidably arranged in the inner wall of the pump skin bowl body (1), the upper side outer wall of the plug-in post (22) is inserted with a connecting ring (23), the lower side of the connecting ring (23) is attached to the outside of the pump skin bowl body (1), the inner wall of the connecting ring (23) is slidably connected with a limiting ring (24), the outer side of the plug-in post (22) is provided with an opening, the limiting ring (24) is inserted into the inner side of the opening, the upper portion of the limiting ring (24) is fixedly connected with a fixed seat one (26), the outer side of the connecting ring (23) is fixedly connected with a fixed seat two (27), the fixed seat two (27) is slidably arranged in the inner side of the limiting ring (24), the fixed seat one (26) and the fixed seat two (27) are fixedly installed through a fastening bolt (28).

2. A device for sizing the pump bowl of an accelerator pump for carburetors according to claim 1, characterized in that: The connecting assembly comprises a stabilizing column (31), the stabilizing column (31) is inserted into the inner wall of the limiting ring (24), the outer side of the stabilizing column (31) is fixedly connected with a baffle (33), the lower outer side of the stabilizing column (31) is provided with a clamping groove (32), the outer side of the limiting ring (24) is provided with a lug (34), and the lug (34) is inserted into the inner wall of the clamping groove (32).

3. A device for sizing the pump bowl of an accelerator pump for carburetors according to claim 1, characterized in that: The upper portion of the limiting ring (24) is provided with a limiting groove (25).

4. The device for shaping the pump bowl for the accelerator of a carburettor according to claim 1, characterized in that: The plug-in post (22) is inserted into the inner side of the limiting groove (25).

5. The device for shaping the pump bowl for the accelerator of a carburettor according to claim 1, characterized in that: The plug-in post (22) is provided with a plurality of groups, and the plurality of plug-in posts (22) are uniformly arranged with the center of the fixed ring (21) as the center point.

6. A device for sizing the pump bowl of an accelerator pump for carburetors according to claim 1, characterized in that: The lower portion of the connecting ring (23) is made of rubber material.

7. A device for sizing the pump bowl of an accelerator pump for carburetors according to claim 1, characterized in that: The fixed ring (21) and the plug-in post (22) are made of aluminum alloy material.

8. A device for sizing the pump bowl of an accelerator pump for carburetors according to claim 2, characterized in that: The baffle (33) is attached to the upper outer side of the pump skin bowl body (1).

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