Chain saw carburetor cover

Abstract

The utility model provides a chain saw carburetor cover which comprises a carburetor box body, positioning columns are symmetrically connected to the upper surface of the carburetor box body, positioning holes are correspondingly formed in the positions, corresponding to the positioning columns, of the lower surface of the carburetor box body, and sealing grooves are correspondingly formed in the positions, corresponding to the upper surface of the carburetor box body, of the lower surface of the carburetor box body. Meanwhile, the upper surface of the carburetor box cover is fixedly connected with a fixing ring, a through hole is correspondingly formed in the position, opposite to the positioning hole, of an inner cavity of the fixing ring, a sealing sleeve is fixedly connected into the positioning hole, the side face of the through hole is in threaded connection with a fixing piece through a threaded connection hole, and the carburetor box cover is fixedly connected with a positioning column through the fixing piece. Through the cooperation of the positioning column, the fixing piece, the fixing ring, the sealing layer and the sealing sleeve, the sealing performance of the joint between the carburetor box body and the carburetor box cover can be effectively enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to carburetor technical field, concretely relates to a chain saw carburetor cover. BACKGROUND

[0002] Chain saw is the short name of "gasoline chain saw" or "gasoline power saw"; it is a power saw used for felling trees and making timber; its sawing mechanism is chain saw; the power part is gasoline engine, convenient to carry and easy to operate; but maintenance and repair are more complex; carburetor is needed in chain saw, and the carburetor is a mechanical device that mixes gasoline and air in a certain proportion under the action of vacuum generated by the engine; as a precise mechanical device, the carburetor realizes the atomization of gasoline by using the kinetic energy of the air flow; it can be called the "heart" of the engine due to its important role in the engine; the existing carburetors on the market have the advantages of convenient use and good atomization effect.

[0003] After searching, a kind of carburetor cover with sealing structure (publication number: CN209724526U) is disclosed in prior art, which is described as "the bottom outside of the box cover is fixedly installed with fixed outer ring, the bottom of the box cover and the inner side of fixed outer ring are fixedly installed with fixed inner ring, sealing pad is fixedly installed between fixed outer ring and fixed inner ring, sealing pad is placed on the top of carburetor box body, and the carburetor box body is movably connected with fixed outer ring by clamping piece." The device is provided with adjusting spring, clasp and hook, the adjusting spring can pull down the clasp and hook to make the box cover contact more closely with the carburetor box body, so that the box cover and the carburetor box body are fixed, and people are convenient to use;But the device in actual use, because the adjusting spring is in a state of tension for a long time to fix the clasp, the clasp can be connected with the fixed outer ring downward, however, the adjusting spring in a state of tension for a long time will affect the elastic force and service life of itself, when the elastic force of the adjusting spring is weakened, the gap between the box cover and the box body is easy to produce, the sealing effect of the device is reduced, and the probability of gas leakage or oil leakage is increased. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects existing in the prior art, the chain saw carburetor cover is provided to solve the problems in the background art.

[0005] In order to achieve the above object, the oil saw carburetor cover is provided, which comprises a carburetor box body, a positioning column is symmetrically connected to the upper surface of the carburetor box body, a positioning hole is formed in the lower surface of the carburetor box cover corresponding to the position of the positioning column, a sealing groove is formed in the lower surface of the carburetor box cover corresponding to the position of the upper surface of the carburetor box body, a sealing layer is fixedly connected in the sealing groove, a fixing ring is fixedly connected to the upper surface of the carburetor box cover, a through hole is formed in the inner cavity of the fixing ring corresponding to the position of the positioning hole, a sealing sleeve is fixedly connected in the positioning hole, a fixing member is screwed through the screwing hole on the side surface of the through hole, and the carburetor box cover is fixedly connected to the positioning column through the fixing member.

[0006] Preferably, the fixing ring fixedly connected to the upper surface of the carburetor box cover is in a circular ring structure, an auxiliary ring fixedly connected to the upper end of the inner arc surface of the fixing ring is in a circular ring structure, the axial section of the auxiliary ring is in a right-angled trapezoidal structure, and the sharp edges of the auxiliary ring are in an arc structure.

[0007] Preferably, a plurality of groups of auxiliary grooves are formed on the upper end of the inner arc surface of the auxiliary ring along the circumferential direction at equal intervals, and the openings on the upper surfaces of the plurality of groups of auxiliary grooves are in an isosceles trapezoidal structure.

[0008] Preferably, the sealing groove formed in the lower surface of the carburetor box cover is in a circular ring structure, the sealing layer fixedly connected in the sealing groove is in a whole circular ring structure, the axial section of the sealing layer is in a character-shaped structure, and the size of the inner cavity of the lower surface of the sealing layer is adapted to the size of the side edge of the upper surface of the carburetor box body.

[0009] Preferably, four groups of positioning columns are fixedly connected to the upper surface of the carburetor box body at equal intervals, the four groups of positioning columns are in a cylindrical structure, the edges of the upper ends of the positioning columns are in an arc structure, the embedded holes formed in the upper ends of the positioning columns are in a cylindrical structure, and the openings of the embedded holes towards the outer side of the carburetor box body are in a circular truncated cone structure.

[0010] Preferably, the sealing sleeve fixedly connected to the carburetor box cover through the positioning hole is in a cylindrical structure, the size of the inner cavity of the sealing sleeve is adapted to the size of the positioning column, the fixing member screwed through the screwing hole of the fixing ring is composed of an embedded rod and a rotating plate, the embedded rod is in a cylindrical structure, a threaded structure is formed in the middle part of the embedded rod, the embedded end of the embedded rod is in a conical structure, and the size of the embedded rod body is adapted to the size of the embedded hole.

[0011] Preferably, the rotating plate is in a circular structure, a plurality of groups of anti-skid plates are fixedly connected to the circular arc surface of the rotating plate along the circumferential direction at equal intervals, the plurality of groups of anti-skid plates are in a half-cylindrical structure, a clamping plate is fixedly connected to the surface of the rotating plate away from the embedded rod, the clamping plate is in a whole isosceles trapezoidal column, a clamping groove is formed in the surface of the clamping plate in a strip-shaped structure, and the cross section formed by the combination of the clamping plate and the clamping groove is in a concave-shaped structure.

[0012] Compared with the prior art, the carburetor box body, the carburetor box cover and the positioning column are in good sealing, the probability of accidental gas leakage or oil leakage between the carburetor box body and the carburetor box cover is effectively reduced, the stability of the connection between the carburetor box body and the carburetor box cover is effectively enhanced, the sealing effect between the two groups is further enhanced, and the service life of the carburetor box cover is effectively prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a part of the front view schematic diagram of the embodiment of the utility model.

[0014] Figure 2 It is a top view schematic diagram of the embodiment of the utility model.

[0015] Figure 3 It is the A place enlarged schematic diagram of the embodiment of the utility model. Figure 1

[0016] Figure 4 It is the B place enlarged schematic diagram of the embodiment of the utility model. Figure 2

[0017] In the drawing: 1, carburetor box body;2, carburetor box cover;3, fixed ring;4, fixed part;5, positioning column;6, auxiliary ring;7, sealing layer;8, sealing sleeve;9, embedded rod;10, rotating plate. DETAILED DESCRIPTION

[0018] Referring to Figures 1 to 4 As shown in the figure, the utility model provides a kind of oil saw carburetor cover, comprising: carburetor box body 1, the positioning column 5 is connected on the symmetrical upper surface of the carburetor box body 1, and the position corresponding to the positioning column 5 is set with positioning hole on the lower surface of carburetor box cover 2, and the position corresponding to the upper surface of the carburetor box body 1 on the lower surface of carburetor box cover 2 is set with sealing groove, while sealing layer 7 is fixedly connected in sealing groove, while the upper surface of carburetor box cover 2 is fixedly connected with fixed ring 3, and the position corresponding to positioning hole is set with through hole in the cavity of fixed ring 3, and sealing sleeve 8 is fixedly connected in positioning hole, and fixed part 4 is screwed through screwing hole on the side of through hole, and carburetor box cover 2 is fixedly connected with positioning column 5 by fixed part 4.

[0019] ​​In this embodiment, when the upper surface of the carburetor housing 1 of the chainsaw needs to be covered with the carburetor cover 2, the upper surface of the positioning pin 5 is first placed against the sealing groove. The position of the carburetor cover 2 is then adjusted by rotating it so that the positioning pin 5 is aligned with the positioning hole of the carburetor cover 2. The carburetor cover 2 is then pushed down so that the positioning pin 5 passes through the sealing sleeve 8 set in the positioning hole and is embedded in the through hole of the fixing ring 3. At the same time, the edge of the upper surface of the carburetor housing 1 can also be embedded into the inner cavity of the sealing layer 7, thereby achieving the initial positioning connection and sealing between the carburetor housing 1 and the carburetor cover 2. After that, the fitting rod 9 of the fixing member 4 is inserted. The insertion rod 9 is inserted into the screw hole on the outer side of the fixing ring 3. The insertion end of the fitting rod 9 can be initially inserted into the fitting hole on the upper end of the positioning post 5 through its inclined end face. The fitting rod 9 is rotated by the rotating plate 10 of the fixing member 4. The fitting rod 9 can be further inserted into the fitting hole on the positioning post 5 through the screw hole. Then, through the cooperation of the inclined surface of the fitting rod 9 and the inclined surface at the opening of the fitting hole, the relative movement between the carburetor housing 1 and the carburetor cover 2 can be further improved, thereby further compressing the sealing layer 7 and effectively enhancing the sealing performance of the connection between the carburetor housing 1 and the carburetor cover 2.

[0020] In a preferred embodiment, the fixing ring 3 fixedly connected to the upper surface of the carburetor cover 2 has a circular ring structure, the auxiliary ring 6 fixedly connected to the upper end of the inner arc surface of the fixing ring 3 has a circular ring structure, the axial section of the auxiliary ring 6 has a right trapezoidal structure, and the sharp edges of the auxiliary ring 6 all have an arc structure.

[0021] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The structure of the auxiliary ring 6 allows workers to quickly lift the fixing ring 3 and the carburetor cover 2, improving the ease of disassembling the carburetor cover 2.

[0022] In a preferred embodiment, multiple sets of auxiliary grooves are formed at equal intervals around the upper end of the inner arc surface of the auxiliary ring 6, and the openings on the upper surfaces of the multiple sets of auxiliary grooves are all isosceles trapezoidal structures.

[0023] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The auxiliary grooves evenly spaced on the inner arc surface of the auxiliary ring 6 can help increase the frictional resistance between the worker's hand and the auxiliary ring 6, thereby making it easier for the worker to drive the fixed ring 3 and the carburetor cover 2 to rotate accordingly through the auxiliary ring 6, ensuring that the positioning pin 5 can be smoothly aligned with the positioning hole.

[0024] As a preferred implementation, the sealing groove on the lower surface of the carburetor cover 2 is in a circular ring structure, and the sealing layer 7 fixedly connected in the sealing groove is in a whole circular ring structure, and the axial section of the sealing layer 7 is in a shape of a Chinese character, and the size of the inner cavity of the lower surface of the sealing layer 7 is matched with the size of the side of the upper surface of the carburetor box body 1.

[0025] In the embodiment, as shown in Figure 1 and Figure 3 , the sealing layer 7 is made of soft rubber material, and the size of the inner cavity of the sealing layer 7 is matched with the size of the side of the upper surface of the carburetor box body 1, so as to assist in enhancing the sealing property of the connection between the sealing layer 7 and the carburetor box body 1, and the inclined surface structure at the opening of the lower end of the inner cavity of the sealing layer 7 can assist in reducing the difficulty of embedding the side of the carburetor box body 1.

[0026] As a preferred implementation, the four groups of positioning columns 5 are fixedly connected on the upper surface of the carburetor box body 1 at equal intervals, and the four groups of positioning columns 5 are in a cylindrical structure, and the edges of the upper ends of the positioning columns 5 are in an arc structure, and the embedding holes on the upper ends of the positioning columns 5 are in a cylindrical structure, and the openings of the embedding holes towards the outside of the carburetor box body 1 are in a circular truncated cone structure.

[0027] In the embodiment, as shown in Figure 1 and Figure 3 , the arc structure at the edges of the upper ends of the positioning columns 5 can assist in reducing the difficulty of the positioning columns 5 passing through the inside of the sealing sleeve 8, and can also assist in enhancing the stability of the connection between the carburetor box body 1 and the carburetor cover 2, and the inclined surface structure at the opening of the embedding hole can cooperate with the inclined surface structure of the embedding rod 9, so that when the embedding rod 9 is completely embedded in the embedding hole, the embedding rod 9 can push the fixing ring 3 and the carburetor cover 2 to further move downwards, so that the sealing layer 7 can be squeezed by the carburetor box body 1 and the carburetor cover 2 at the same time, thereby enhancing the sealing property of the connection between the carburetor cover 2 and the carburetor box body 1.

[0028] As a preferred implementation, the sealing sleeve 8 fixedly connected by the positioning hole of the carburetor cover 2 is in a cylindrical structure, and the size of the inner cavity of the sealing sleeve 8 is matched with the size of the positioning column 5, and the fixing member 4 screwed by the screwing hole of the fixing ring 3 is composed of the embedding rod 9 and the rotating plate 10, and the embedding rod 9 is in a cylindrical structure, and the middle part of the embedding rod 9 is provided with a threaded structure, and the embedding end of the embedding rod 9 is in a conical structure, and the size of the main body of the embedding rod 9 is matched with the size of the embedding hole.

[0029] In the embodiment, as shown in Figure 1 and Figure 3The size of the inner cavity of the sealing sleeve 8 and the positioning column 5 is matched, so that the sealing property of the joint between the sealing sleeve 8 and the positioning column 5 is assisted to be enhanced, and then the sealing property of the joint between the carburetor box cover 2 and the carburetor box body 1 is assisted to be enhanced, the probability of oil leakage or gas leakage at the joint between the two is reduced, and meanwhile, the thread structure formed on the surface of the embedded rod 9 can assist to reduce the difficulty of embedding the embedded rod 9 into the embedded hole formed in the positioning column 5.

[0030] As a preferable implementation, the rotating plate 10 is in a circular structure, the circular arc surface of the rotating plate 10 circumferentially surrounds a plurality of groups of anti-skid plates fixedly connected at equal intervals, the plurality of groups of anti-skid plates are all in a semi-cylindrical structure, and the surface of the rotating plate 10 away from the embedded rod 9 is fixedly connected with a clamping plate, the clamping plate is in an isosceles trapezoidal column as a whole, and the clamping groove formed on the surface of the clamping plate is in a strip-shaped structure, and the cross section formed by the combination of the clamping plate and the clamping groove is in a concave-shaped structure.

[0031] In the embodiment, as Figure 3 and Figure 4 The anti-skid plates are arranged, so that the stability of the rotating plate 10 when rotated by workers is assisted to be enhanced, the probability of hand slipping of the workers is reduced, and it is ensured that the fixing member 4 can be normally rotated, and the clamping plate is arranged, so that the auxiliary tool is embedded into the clamping groove formed in the clamping plate when the fixing member 4 is difficult to rotate, the auxiliary tool is correspondingly rotated, and the difficulty of the rotation of the fixing member 4 is reduced.

[0032] The oil saw carburetor cover can effectively enhance the sealing property of the joint between the carburetor box body 1 and the carburetor box cover 2 by the cooperation of the positioning column 5, the fixing member 4, the fixing ring 3, the sealing layer 7 and the sealing sleeve 8, and can also assist to enhance the stability of the joint between the carburetor box body 1 and the carburetor box cover 2, the number of the fixing member 4 can be reduced according to actual needs, and at least two groups of fixing members 4 are provided, so that the convenience of the fixed connection between the carburetor box body 1 and the carburetor box cover 2 is enhanced.

Claims

1. A chainsaw carburettor cap, comprising: The carburetor box (1) is characterized in that: the upper surface of the carburetor box (1) is symmetrically connected with positioning columns (5), the lower surface of the carburetor cover (2) is provided with positioning holes corresponding to the positions of the positioning columns (5), the lower surface of the carburetor cover (2) is provided with a sealing groove corresponding to the position of the upper surface of the carburetor box (1), a sealing layer (7) is fixedly connected in the sealing groove, a fixing ring (3) is fixedly connected to the upper surface of the carburetor cover (2), a through hole is formed in the inner cavity of the fixing ring (3) corresponding to the position of the positioning hole, a sealing sleeve (8) is fixedly connected in the positioning hole, a fixing member (4) is screwed through the screwing hole on the side surface of the through hole, and the carburetor cover (2) is fixedly connected with the positioning columns (5) through the fixing member (4).

2. A chain saw carburetor cover according to claim 1, characterized in that The fixing ring (3) fixedly connected to the upper surface of the carburetor cover (2) has a circular ring structure, the auxiliary ring (6) fixedly connected to the upper end of the inner arc surface of the fixing ring (3) has a circular ring structure, and the axial section of the auxiliary ring (6) has a right trapezoidal structure, and the sharp edges of the auxiliary ring (6) have an arc structure.

3. A chainsaw carburettor cap according to claim 2, characterised in that A plurality of groups of auxiliary grooves are formed on the upper end of the inner arc surface of the auxiliary ring (6) in a circumferential direction at equal intervals, and the openings of the upper surfaces of the plurality of groups of auxiliary grooves have an isosceles trapezoidal structure.

4. A chain saw carburetor cover according to claim 1, characterized in that The sealing groove formed on the lower surface of the carburetor cover (2) has a circular ring structure, the sealing layer (7) fixedly connected in the sealing groove has a whole circular ring structure, the axial section of the sealing layer (7) has a shape structure, and the size of the inner cavity of the lower surface of the sealing layer (7) is matched with the size of the side edge of the upper surface of the carburetor box (1).

5. A chain saw carburetor cover according to claim 1, characterized in that Four groups of positioning columns (5) are fixedly connected to the upper surface of the carburetor box (1) at equal intervals, the four groups of positioning columns (5) all have a cylindrical structure, the edges of the upper ends of the positioning columns (5) have an arc structure, and the embedded holes formed on the upper ends of the positioning columns (5) have a cylindrical structure, and the openings of the embedded holes towards the outside of the carburetor box (1) have a circular truncated cone structure.

6. A chain saw carburetor cover according to claim 1, characterized in that The sealing sleeve (8) fixedly connected with the positioning hole of the carburetor cover (2) has a cylindrical structure, the size of the inner cavity of the sealing sleeve (8) is matched with the size of the positioning column (5), the fixing member (4) screwed through the screwing hole of the fixing ring (3) is composed of an embedded rod (9) and a rotating plate (10), the embedded rod (9) has a cylindrical structure, a threaded structure is formed on the middle part of the embedded rod (9), the embedded end of the embedded rod (9) has a conical structure, and the size of the embedded rod (9) is matched with the size of the embedded hole.

7. A chain saw carburetor cover according to claim 6, characterized in that The rotating plate (10) has a circular structure, a plurality of groups of anti-skid plates are fixedly connected to the circular arc surface of the rotating plate (10) in a circumferential direction at equal intervals, the plurality of groups of anti-skid plates all have a semi-cylindrical structure, a clamping plate is fixedly connected to the surface of the rotating plate (10) away from the embedded rod (9), the whole clamping plate has an isosceles trapezoidal column structure, a clamping groove having a strip-shaped structure is formed on the surface of the clamping plate, and the cross section formed by the combination of the clamping plate and the clamping groove has a concave shape structure.

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