Carburetor sealing structure with reliable sealing effect

Abstract

The utility model provides a carburetor sealing structure which is reliable in sealing effect and comprises a body and an oil storage chamber, the body and the oil storage chamber are fastened together through a connecting bolt, a foam pipe sealing ring is arranged between the body and the oil storage chamber for isolation sealing, and a connecting bolt sealing ring is arranged between the oil storage chamber and the connecting bolt for isolation sealing. The connecting bolt sealing ring comprises a connecting bolt sealing ring inner limiting column. And the limiting column in the connecting bolt sealing ring is in clearance fit with the oil storage chamber and the connecting bolt positioning boss. According to the carburetor sealing structure, by adjusting the position layout of the oil storage chamber and the connecting bolt positioning boss in the oil supply transfer groove of the oil storage chamber, the width of the foam pipe sealing groove is increased, the wide foam pipe sealing ring is used, and the sealing reliability of the foam pipe sealing ring is improved; the size of a limiting column in a sealing ring of the connecting bolt is adjusted to keep the effect of the sealing ring of the connecting bolt.

Description

TECHNICAL FIELD

[0001] The utility model relates to carburetor equipment technical field especially relates to a sealing effect reliable carburetor sealing structure. BACKGROUND

[0002] The carburetor has the structure of the electromagnetic valve or the manual valve oil cut-off, needs to be able to effectively cut off the oil circuit in the oil storage chamber and the foam pipe, and in the structure of the transverse electromagnetic valve or the manual valve, there is a oil supply transfer groove in the passage of the oil storage chamber and the foam pipe, and in addition to the electromagnetic valve needle for sealing oil insulation, the gap between the body foam pipe end face and the foam pipe sealing ring groove of the oil storage chamber also needs to be sealed with a sealing ring, and in the existing structure, the foam pipe at this position has the problems of less sealing fit and poor sealing reliability.

[0003] The existing carburetor sealing structure has the tolerance deviation within the existing deviation of the comprehensive fit size and the actual production and processing capacity, and the actual single-side fit amount of the foam pipe end face of the body and the foam pipe sealing ring is less than 0.3, and the compression of the sealing ring is small, which causes the sealing to be not tight after the sealing ring is extruded and the fuel is soaked in the sealing ring during use, the sealing ring is expanded, the extrusion force of the sealing ring under the condition of extrusion is increased, and the probability of the sealing being not tight due to the material running of the sealing ring is increased again. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a sealing effect reliable carburetor sealing structure, which comprises:

[0005] The body and the oil storage chamber are fastened together by connecting bolts, a foam pipe sealing ring is arranged between the body and the oil storage chamber for insulation sealing, and a connecting bolt sealing ring is arranged between the oil storage chamber and the connecting bolt for insulation sealing.

[0006] The connecting bolt sealing ring comprises a connecting bolt sealing ring inner limiting column, and the connecting bolt sealing ring inner limiting column and the oil storage chamber and the connecting bolt positioning boss are in clearance fit.

[0007] In some embodiments, the foam pipe sealing ring is provided with a foam pipe sealing ring inner limiting boss, and the foam pipe sealing ring and the foam pipe sealing ring inner limiting boss are in overfit.

[0008] In some embodiments, the foam pipe sealing ring is also provided with a foam pipe sealing ring groove, and the connecting bolt sealing ring also comprises a connecting bolt sealing ring groove.

[0009] In some embodiments, the oil storage chamber and the connecting bolt positioning boss are located at the foam pipe sealing ring groove, and the diameter of the oil storage chamber and the connecting bolt positioning boss is smaller than the inner hole diameter of the foam pipe sealing ring.

[0010] In some of the embodiments, the oil storage chamber is provided with a foam pipe sealing ring platform, the foam pipe sealing ring is arranged on the foam pipe sealing ring platform of the oil storage chamber, and the inner hole is limited by the limiting boss.

[0011] In some of the embodiments, the carburetor sealing structure further comprises an oil supply transfer groove, and the position layout of the oil storage chamber and the connecting bolt positioning boss in the oil supply transfer groove of the oil storage chamber can be adjusted.

[0012] In some of the embodiments, the oil supply transfer groove is further provided with an oil inlet transverse hole and an oil inlet sealing surface.

[0013] In some of the embodiments, the oil storage chamber is transversely provided with a solenoid valve, a solenoid valve sealing ring is arranged between the oil storage chamber and the solenoid valve for insulation sealing, and the solenoid valve sealing ring further comprises a solenoid valve sealing ring groove.

[0014] In some of the embodiments, the gap amount of the gap fit between the connecting bolt sealing ring limiting column and the oil storage chamber and the connecting bolt positioning boss is 0.2.

[0015] In some of the embodiments, the fit amount of the foam pipe end surface of the body and the foam pipe sealing ring is 2.3 or 3, and the single side is greater than 0.8 or 1.15.

[0016] Compared with the prior art, the carburetor sealing structure with reliable sealing effect has the following advantages and beneficial effects:

[0017] The carburetor sealing structure with reliable sealing effect provided by the utility model adjusts the position layout of the oil storage chamber and the connecting bolt positioning boss in the oil supply transfer groove of the oil storage chamber, increases the width of the foam pipe sealing groove, uses a wide foam pipe sealing ring, thereby improving the sealing reliability of the foam pipe sealing ring, adjusts the size of the sealing ring limiting column of the connecting bolt, and makes the connecting bolt sealing ring maintain effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a structural schematic view of the carburetor sealing structure with reliable sealing effect shown in the embodiments of the utility model.

[0020] Figure 2 It is a structural schematic view of the oil storage chamber shown in the embodiments of the utility model.

[0021] Figure 3 The connecting bolt structure schematic diagram shown in the embodiment of the utility model;

[0022] Figure 4 The foam pipe sealing ring shown in the embodiment of the utility model;

[0023] Figure 5 The carburetor sealing structure with reliable sealing effect shown in the embodiment of the utility model, wherein the oil storage chamber is not provided with the foam pipe sealing ring inner limiting boss;

[0024] Among them:

[0025] 1-the main body;

[0026] 2-the oil storage chamber;

[0027] 3-the connecting bolt;

[0028] 4-the foam pipe sealing ring;

[0029] 401-the foam pipe sealing ring inner limiting boss;

[0030] 402-the foam pipe sealing ring groove;

[0031] 403-the foam pipe sealing ring platform;

[0032] 5-the connecting bolt sealing ring;

[0033] 501-the connecting bolt sealing ring inner limiting column;

[0034] 502-the connecting bolt sealing ring groove;

[0035] 6-the oil storage chamber and the connecting bolt positioning boss;

[0036] 7-the oil supply transfer groove;

[0037] 701-the oil inlet horizontal hole;

[0038] 702-the oil inlet sealing surface;

[0039] 8-the electromagnetic valve;

[0040] 9-the electromagnetic valve sealing ring;

[0041] 901-the electromagnetic valve sealing ring groove. DETAILED DESCRIPTION

[0042] The utility model technical scheme will be described in detail below in combination with the drawings and specific embodiments, so that the purpose, scheme and effect of the utility model can be further understood, but it is not as the limitation of the utility model attached claim protection scope.

[0043] Certain terms are used throughout the following description and claims, which terms have specific meanings as described below. The use of the same terms in different situations and / or contexts can have different meanings. The terms "coupled" and "connected," along with their derivatives, as used in the description and / or claims, can have the same or similar meaning as the term "connected" unless otherwise indicated. For example, a connection can be a direct connection or an indirect connection.

[0044] It should be noted that, in the description of the present application, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and "about" or "approximately", "substantially", "left and right", and the like indicating the orientation or positional relationship or parameters and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description content, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, a particular size or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0045] Referring to Figures 1-4 The present application provides a sealing structure of a carburetor with reliable sealing effect, comprising: a body 1 and an oil storage chamber 2, the body 1 and the oil storage chamber 2 are fastened together by connecting bolts 3, a foam pipe sealing ring 4 is arranged between the body 1 and the oil storage chamber 2 for insulation and sealing, and a connecting bolt sealing ring 5 is arranged between the oil storage chamber 2 and the connecting bolt 3 for insulation and sealing; the foam pipe sealing ring 4 is provided with a foam pipe sealing ring inner limiting boss 401, and the connecting bolt sealing ring 5 comprises a connecting bolt sealing ring inner limiting column 501; the foam pipe sealing ring 4 and the foam pipe sealing ring inner limiting boss 401 are in an interference fit, the connecting bolt sealing ring inner limiting column 501 and the oil storage chamber and the connecting bolt positioning boss 6 are in a clearance fit, the clearance amount is 0.2, and the diameter of the connecting bolt sealing ring inner limiting column 501 can be

[0046] The sealing structure of the carburetor in the embodiment further comprises an oil supply transfer groove 7, and the position and layout of the oil storage chamber and the connecting bolt positioning boss 6 in the oil supply transfer groove 7 of the oil storage chamber can be adjusted. The diameter of the oil supply transfer groove 7 can be The oil supply transfer groove 7 is further provided with an oil inlet transverse hole 701 and an oil inlet sealing surface 702.

[0047] The oil storage chamber 2 is equipped with an electromagnetic valve 8 in the transverse direction in this embodiment, which can also be a manual valve, and an electromagnetic valve sealing ring 9 is arranged between the oil storage chamber 2 and the electromagnetic valve 8 (or the manual valve) to achieve insulation sealing, and the electromagnetic valve sealing ring 9 further comprises an electromagnetic valve sealing ring groove 901.

[0048] The foam pipe sealing ring 4 is further provided with a foam pipe sealing ring groove 402 in this embodiment, and the connecting bolt sealing ring 5 further comprises a connecting bolt sealing ring groove 502. The oil storage chamber and connecting bolt positioning boss 6 is located at the foam pipe sealing ring groove 402, and the diameter of the oil storage chamber and connecting bolt positioning boss 6 is smaller than the inner hole diameter of the foam pipe sealing ring 4. For example, the inner hole diameter of the foam pipe sealing ring 4 can be 8.5mm, and the diameter of the oil storage chamber and connecting bolt positioning boss 6 can be 8.3mm. The diameter of the oil storage chamber and connecting bolt positioning boss 6

[0049] The foam pipe end face of the body and the foam pipe sealing ring 4 are matched by 2.3 in this embodiment, and the single side is greater than 0.8, for example, it can be 1.15. In view of the tolerance deviation existing in the actual production and processing capacity, the improved sealing matching structure can make the actual single side matching amount of the foam pipe end face of the body and the foam pipe sealing ring reach more than 0.8, which can effectively and stably play a sealing effect.

[0050] The diameter of the foam pipe sealing ring inner limiting boss 401 of the oil storage chamber 2 is consistent with the inner hole diameter of the foam pipe sealing ring 4 in this embodiment. For example, the diameter of the foam pipe sealing ring inner limiting boss 401 of the oil storage chamber 2 can be 8.5mm.

[0051] Referring to Figure 5 , another embodiment of the utility model provides a carburetor sealing structure with reliable sealing effect, wherein the foam pipe sealing ring inner limiting boss of the oil storage chamber 2 is not arranged, the foam pipe sealing ring 4 is arranged on the foam pipe sealing ring platform 403 of the oil storage chamber 2, and the inner hole is not limited by the limiting boss. At this time, the inner hole diameter of the foam pipe sealing ring 4 can be 8.5mm. The diameter of the oil storage chamber and connecting bolt positioning boss 6 can be 8.3mm. The diameter of the oil supply transfer groove 7 can be 8.5mm. The diameter of the connecting bolt sealing ring inner limiting column 501 can be 8.3mm. At this time, the matching amount of the foam pipe end face of the body and the foam pipe sealing ring is 3, and the single side is 1.5; in view of the tolerance deviation existing in the actual production and processing capacity, the improved sealing matching structure can make the actual single side matching amount of the foam pipe end face of the body and the foam pipe sealing ring reach more than 1.15, which can effectively and stably play a sealing effect.

[0052] The carburetor sealing structure with reliable sealing effect adjusts the position layout of the oil storage chamber and the connecting bolt positioning boss in the oil supply transfer groove of the oil storage chamber, increases the width of the foam pipe sealing groove, uses the wide foam pipe sealing ring, and thus improves the sealing reliability of the foam pipe sealing ring.

[0053] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the disclosed technology content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present application without departing from the technical solution content of the present application still falls within the protection scope of the present application.

Claims

1. A carburetor sealing structure with reliable sealing effect, characterized in that: Include: The body and the oil storage chamber, the body and the oil storage chamber are fastened together with connecting bolts, the foam pipe sealing ring is provided between the body and the oil storage chamber for insulation sealing, the connecting bolt sealing ring is provided between the oil storage chamber and the connecting bolt for insulation sealing; The connecting bolt sealing ring includes a connecting bolt sealing ring inner limiting column; The connecting bolt sealing ring inner limiting column and the oil storage chamber and the connecting bolt positioning boss are gap fit.

2. The carburetor sealing structure according to claim 1, wherein: The foam pipe sealing ring is provided with a foam pipe sealing ring inner limiting boss, and the foam pipe sealing ring and the foam pipe sealing ring inner limiting boss are over fit.

3. The carburetor sealing structure according to claim 2, wherein: The foam pipe sealing ring is also provided with a foam pipe sealing ring groove, and the connecting bolt sealing ring also includes a connecting bolt sealing ring groove.

4. The carburetor sealing structure according to claim 3, wherein: The oil storage chamber and the connecting bolt positioning boss are located at the foam pipe sealing ring groove, and the diameter of the oil storage chamber and the connecting bolt positioning boss is smaller than the inner hole diameter of the foam pipe sealing ring.

5. The carburetor sealing structure according to claim 1, wherein: The oil storage chamber is provided with a foam pipe sealing ring platform, the foam pipe sealing ring is installed on the foam pipe sealing ring platform of the oil storage chamber, and the inner hole is limited without limiting boss.

6. The carburetor sealing structure according to claim 1, wherein: The carburetor sealing structure further includes an oil supply transfer groove, and the position layout of the oil storage chamber and the connecting bolt positioning boss in the oil supply transfer groove of the oil storage chamber can be adjusted.

7. The carburetor sealing structure according to claim 6, wherein: The oil supply transfer groove is also provided with an oil inlet transverse hole and an oil inlet sealing surface.

8. The carburetor sealing structure according to claim 1, wherein: The oil storage chamber is transversely assembled with an electromagnetic valve, and an electromagnetic valve sealing ring is provided between the oil storage chamber and the electromagnetic valve for insulation sealing; The electromagnetic valve sealing ring also includes an electromagnetic valve sealing ring groove.

9. The carburetor sealing structure according to claim 1, wherein: The gap amount of the gap fit between the connecting bolt sealing ring inner limiting column and the oil storage chamber and the connecting bolt positioning boss is 0.

2.

10. The carburetor sealing structure according to claim 1, wherein: The foam pipe end face of the body cooperates with the foam pipe sealing ring by 2.3 or 3, and the single side is greater than 0.8 or 1.15.

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