Cylinder head cover

Abstract

The utility model relates to a cylinder head cover and belongs to the technical field of cylinder parts, the cylinder head cover comprises a cover body and a pair of oil covers, the cover body is provided with an engine oil inlet and an engine oil outlet, the engine oil inlet and the engine oil outlet are both provided with connecting grooves, the pair of oil covers are respectively connected with the connecting grooves, and the connecting grooves are connected with the oil covers. The oil cover comprises a cover plate and a connecting column which are connected with each other, a threaded part is arranged on the outer side wall of the connecting column, and a movable threaded part which is in threaded connection with the threaded part in a matched mode is arranged on the groove wall of the connecting groove. A first reset spring is arranged between the end, away from the opening of the connecting groove, of the movable threaded part and the bottom of the connecting groove, and a plurality of elastic clamping pieces distributed at equal intervals are arranged on the outer side wall, close to the end connected with the cover plate, of the connecting column. The groove wall, close to one end of the groove opening, of the connecting groove is provided with a clamping piece which is clamped with the elastic clamping piece in a matched mode. The engine oil cover has the effect that the situation that engine oil leaks from the oil cover is not prone to occurring when the air cylinder works.

Description

Technical Field

[0001] The present application relates to the technical field of cylinder parts, and in particular to a cylinder head cover. Background Art

[0002] The cylinder head cover is one of the relatively important parts in a car engine. It mainly covers and seals the cylinder head, stores engine oil, and isolates it from external dirt. It forms a combustion chamber with the cylinder. The cylinder converts the pressure energy of compressed air into mechanical energy and drives the mechanism to perform linear reciprocating motion.

[0003] The cylinder head cover comprises a cover body connected with the cylinder, an oil inlet and an oil outlet are arranged on the cover body, and oil caps are threadedly connected at the oil inlet and the oil outlet.

[0004] With respect to the above-mentioned related technologies, the following defects were found: the oil cap is threadedly connected to the oil inlet and the oil outlet respectively. Since the cylinder converts the pressure energy of compressed air into mechanical energy, a certain vibration is inevitably generated when the driving mechanism performs linear reciprocating motion. At this time, the ends of the oil cap threadedly connected to the oil inlet and the oil outlet respectively may gradually loosen due to the vibration, so there may be oil leakage between the oil cap and the oil inlet and the oil outlet. Utility Model Content

[0005] In order to prevent oil from leaking from the oil cap when the cylinder is operating, the present application provides a cylinder head cover.

[0006] The present application provides a cylinder head cover, which adopts the following technical solution:

[0007] A cylinder head cover comprises a cover body and a pair of oil covers, the cover body is provided with an oil inlet and an oil outlet, the oil inlet and the oil outlet are both provided with connecting grooves, the pair of oil covers are respectively connected to the connecting grooves, the oil cover comprises a connected cover plate and a connecting column, the outer side wall of the connecting column is provided with a threaded portion, the groove wall of the connecting groove is provided with a movable threaded portion that is threadedly connected to the threaded portion, a first return spring is provided between the end of the movable threaded portion that faces away from the notch of the connecting groove and the bottom of the connecting groove, a plurality of equidistantly distributed elastic clips are provided on the outer side wall of the connecting column near the end connected to the cover plate, and a clip that is engaged with the elastic clip is provided on the groove wall near one end of the connecting groove near the notch.

[0008] By adopting the above technical solution, a connecting groove is provided at both the oil inlet and the oil outlet, the cover plate is used to abut against the edge of the groove of the connecting groove, a threaded portion is provided at the outer wall of the connecting column, and a movable threaded portion threadedly connected with the thread cloth is provided at the groove wall of the connecting groove, so that the oil cover can be connected to the connecting groove through the threaded connection between the threaded portion and the movable threaded portion, and a first return spring is provided between the end of the movable threaded portion away from the groove of the connecting groove and the bottom of the connecting groove, so that the movable threaded portion can automatically return to the original position under the action of the first return spring. The oil cover is reset, and a plurality of equidistantly distributed elastic clips are arranged on the outer side wall of the connecting column near the end connected to the cover plate, and a clip that cooperates with the elastic clip is arranged on the groove wall of the connecting groove near the groove end, so that when the connecting column is threadedly connected with the movable threaded part, the cover plate can be pressed to make the movable threaded part move in the direction of the first reset spring, and move until the elastic clip cooperates with the clip to further fix the oil cover in the connecting groove, so that the cylinder is not prone to oil leakage from the oil cover due to vibration during operation.

[0009] Optionally, the elastic clamp includes a clamping column and a second return spring connected to the clamping column, and a plurality of equally distributed lending grooves are provided on the outer wall of the connecting column. The end of the second return spring facing away from the connection with the clamping column is connected to the bottom of the lending groove.

[0010] By adopting the above technical solution, a second return spring is connected to one end of the clamping column, and a plurality of equally distributed lending grooves are arranged on the outer wall of the connecting column. The end of the second return spring that is away from the connection with the clamping column is connected to the bottom of the lending groove, so that the clamping column can move toward the bottom of the lending groove when it is squeezed, and when the clamping column is no longer squeezed, it can be ejected toward the direction of the lending groove away from the bottom of the groove through the second return spring.

[0011] Optionally, the clamping member includes a first clamping block and a second clamping block, a plurality of equidistantly distributed installation grooves are provided on the groove wall of the connecting groove, a sleeve rod is provided in the installation groove, the first clamping block is connected to one end of the sleeve rod close to the notch of the connecting groove, and the second clamping block is movably sleeved on the sleeve rod.

[0012] By adopting the above technical solution, a plurality of equidistantly distributed installation grooves are provided on the groove wall of the connecting groove, and a sleeve rod is provided in the installation groove. The first clamping block is connected to one end of the sleeve rod close to the notch of the connecting groove, so that the first clamping block is fixed on the sleeve rod, which is conducive to the stable clamping and fixing of the clamping column and the first clamping block. The second clamping block is movably sleeved on the sleeve rod, so that the second clamping block can move on the sleeve rod, which is conducive to the disconnection of the first clamping block.

[0013] Optionally, the first clamping block is semicircular, and the end of the clamping column away from the end connected to the second return spring is provided with a first inclined surface that matches the first clamping block.

[0014] By adopting the above technical solution, the first clamping block is semicircular, and the end of the clamping column away from the second return spring is provided with a first inclined surface matching the first clamping block, which is conducive to the clamping column moving more smoothly toward the lending slot.

[0015] Optionally, a second inclined surface and a third inclined surface are provided at one end of the second clamping block facing the notch of the installation slot, the second inclined surface is located at one end of the second clamping block close to the first clamping block, and the third inclined surface is located at one end of the second clamping block away from the first clamping block.

[0016] By adopting the above technical solution, a second inclined surface and a third inclined surface are provided at one end of the second clamping block facing the notch of the installation groove, the second inclined surface is located at one end of the second clamping block close to the first clamping block, and the third inclined surface is located at one end of the second clamping block away from the first clamping block, which is conducive to the disconnection of the clamping column.

[0017] Optionally, the second inclined surface has an inclination direction consistent with that of the first inclined surface, and the third inclined surface has an inclination direction opposite to that of the first inclined surface.

[0018] By adopting the above technical solution, the second inclined surface is consistent with the inclination direction of the first inclined surface, and the third inclined surface is opposite to the inclination direction of the first inclined surface, so that when the cover plate is pressed, the clamping column can abut against the third inclined surface through the cooperation of the first inclined surface and the second inclined surface, and then the cover plate is moved in the direction opposite to the pressing direction, and the first inclined surface can abut against the third inclined surface to drive the second clamping block to move in the direction of the first clamping column, which is conducive to the disconnection of the clamping column.

[0019] Optionally, a chamfer is provided at a notch edge of the mounting groove close to the notch of the connecting groove.

[0020] By adopting the above technical solution, a chamfer is provided at the edge of the installation groove close to the groove of the connecting groove, which is conducive to the clamping and disconnecting of the clamping column.

[0021] Optionally, a sealing ring groove is provided on the outer side wall of the connecting column, and a sealing ring is provided in the sealing ring groove.

[0022] By adopting the above technical solution, a sealing ring groove is provided on the outer side wall of the connecting column, and a sealing ring is provided in the sealing ring groove, which is beneficial to improving the sealing performance of the connection between the oil cover and the oil inlet and the oil outlet.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. A connecting groove is provided at both the oil inlet and the oil outlet, the cover plate is used to abut against the edge of the groove of the connecting groove, a threaded portion is provided at the outer wall of the connecting column, and a movable threaded portion threadedly connected with the thread cloth is provided at the groove wall of the connecting groove, so that the oil cover can be connected to the connecting groove through the threaded connection between the threaded portion and the movable threaded portion, and a first reset spring is provided between the end of the movable threaded portion away from the groove of the connecting groove and the bottom of the connecting groove, so that the movable threaded portion can automatically reset under the action of the first reset spring, and A plurality of equidistantly distributed elastic clamping parts are arranged at the outer side wall of the connecting column near the end connected to the cover plate, and a clamping part that cooperates with the elastic clamping part is arranged at the groove wall of the connecting groove near the groove end, so that when the connecting column is threadedly connected with the movable threaded part, the cover plate can be pressed to make the movable threaded part move toward the direction of the first return spring until the elastic clamping part cooperates with the clamping part to further fix the oil cover in the connecting groove, so that the oil is not easily leaked from the oil cover due to vibration when the cylinder is working;

[0025] 2. A second return spring is connected to one end of the clamping column, and a plurality of equally spaced lending grooves are provided on the outer side wall of the connecting column. The end of the second return spring that is away from the clamping column is connected to the bottom of the lending groove, so that the clamping column can move toward the bottom of the lending groove when it is squeezed, and when the clamping column is no longer squeezed, it can be ejected toward the direction of the lending groove away from the bottom of the groove through the second return spring;

[0026] 3. A plurality of equally spaced installation grooves are arranged on the groove wall of the connecting groove, and a sleeve rod is arranged in the installation groove. The first clamping block is connected to one end of the sleeve rod close to the notch of the connecting groove, so that the first clamping block is fixed on the sleeve rod, which is conducive to the stable clamping and fixing of the clamping column and the first clamping block. The second clamping block is movably sleeved on the sleeve rod, so that the second clamping block can move on the sleeve rod, which is conducive to the disconnection of the first clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a partial explosion structure of the overall structure in an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the structure of the cover body and the clamping member in the embodiment of the present application.

[0029] Figure 3 yes Figure 2 Schematic diagram of the structure of part A in the middle.

[0030] Figure 4It is a schematic diagram of a partial explosion structure of the oil cover and the elastic clip in the embodiment of the present application.

[0031] Figure 5 yes Figure 3 Schematic diagram of the structure of part B.

[0032] Figure 6 It is a schematic diagram of the structure of the clamping member in the embodiment of the present application.

[0033] Explanation of the reference numerals: 1. cover body; 11. oil inlet; 111. connecting groove; 1111. movable threaded portion; 1112. first return spring; 12. oil outlet; 2. oil cap; 21. cover plate; 22. connecting column; 221. threaded portion; 222. sealing ring groove; 2221. sealing ring; 3. elastic clamping member; 31. lending groove; 32. clamping column; 321. first inclined surface; 33. second return spring; 4. clamping member; 41. mounting groove; 411. chamfer; 42. sleeve rod; 43. first clamping block; 431. semicircular portion; 432. plane portion; 4321. embedded groove; 44. second clamping block; 441. second inclined surface; 442. third inclined surface. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a cylinder head cover. Figure 1 A cylinder head cover includes a cover body 1, an oil cover 2, a plurality of equidistantly distributed elastic clips 3 and a plurality of equidistantly distributed clips 4, the elastic clips 3 are arranged on the oil cover 2, the clips 4 are arranged on the cover body 1, the elastic clips 3 and the clips 4 are matched and connected, so that the oil cover 2 and the cover body 1 can be fixed by the matching and connecting of the elastic clips 3 and the clips 4.

[0036] Reference Figure 1 , Figure 2 and Figure 3 An oil inlet 11 and an oil outlet 12 are provided on the cover body 1, and a connecting groove 111 is opened in the oil inlet 11 and the oil outlet 12, and the connecting groove 111 is used to connect with the oil cover 2. Since the connecting groove 111 of the oil inlet 11 and the oil outlet 12 is connected to the structure of the oil cover 2, in this embodiment, the structure of the connecting groove 111 opened in the oil inlet 11 connected to the oil cover 2 is described as an example.

[0037] Reference Figure 2 and Figure 3Assuming that the direction of the connecting groove 111 close to the groove opening is the upper end of the cover body 1, the direction of the connecting groove 111 close to the groove bottom is the lower end of the cover body 1, a movable threaded portion 1111 is movably arranged in the connecting groove 111, and a first return spring 1112 is welded to the lower end of the movable threaded portion 1111, and one end of the first return spring 1112 that is away from the lower end of the movable threaded portion 1111 is welded to the groove bottom of the connecting groove 111, so that the movable threaded portion 1111 can move in the vertical direction.

[0038] Reference Figure 2 and Figure 4 The oil cover 2 includes an integrally formed cover plate 21 and a connecting column 22. The connecting column 22 is used to be inserted into the connecting groove 111. When the connecting column 22 is inserted into the connecting groove 111, a certain gap is left at the edge of the groove of the cover plate 21 and the connecting groove 111. A threaded portion 221 is integrally formed at the outer side wall of the connecting column 22 near the lower end. The threaded portion 221 is used to cooperate with the movable threaded portion 1111 for threaded connection. A sealing ring groove 222 is opened at the outer side wall of the connecting column 22 located above the threaded portion 221, and a sealing ring 2221 is placed in the sealing ring groove 222.

[0039] Reference Figure 4 , a plurality of equidistantly distributed elastic clamping members 3 are located on the outer side wall of the connecting column 22 near the upper end. In this embodiment, according to the size of the connecting column 22, four groups of equidistantly distributed elastic clamping members 3 are preferably provided on the outer side wall of the connecting column 22. The elastic clamping member 3 includes a lending groove 31, a clamping column 32 and a second return spring 33. The lending groove 31 is transversely opened on the outer side wall of the connecting column 22. One end of the second return spring 33 is welded to the bottom of the lending groove 31. The second return spring 33 is away from the lending groove 31. One end welded to the bottom of the groove is welded to one end of the clamping column 32, so that the clamping column 32 is squeezed and the clamping column 32 can move toward the bottom of the lending groove 31. When the clamping column 32 is no longer squeezed, the clamping column 32 can pop out in the direction away from the bottom of the groove of the lending groove 31 under the action of the second return spring 33. A first inclined surface 321 is provided at the end of the clamping column 32 away from the welded second return spring 33, and the first inclined surface 321 is inclined downward in the direction of the lending groove 31.

[0040] Reference Figure 4 , Figure 5 and Figure 6, several equidistantly distributed clips 4 are located on the groove wall of the connecting groove 111 near the groove opening. Since the clips 4 are engaged with the elastic clips 3, in this embodiment, four groups of clips 4 are also provided on the groove wall of the connecting groove 111. The clips 4 include an installation groove 41, a sleeve rod 42, a first clip block 43 and a second clip block 44. The installation groove 41 is vertically opened on the groove wall of the connecting groove 111, the sleeve rod 42 is vertically welded to the groove wall at the lower end of the installation groove 41, and the second clip block 44 is sleeved on the sleeve rod 42, so that the second clip block 44 can move up and down on the sleeve rod 42, and the first clip block 43 is welded to the upper end of the sleeve rod 42.

[0041] Reference Figure 4 , Figure 5 and Figure 6 A chamfer 411 is integrally formed at the edge of the slot near the upper end of the mounting slot 41. The first clamping block 43 is semicircular, so that the first clamping block 43 includes an integrally formed semicircular portion 431 and a flat portion 432. The semicircular portion 431 is located above the flat portion 432. The flat portion 432 is used to be welded to the upper end of the sleeve rod 42. The second clamping block 44 is provided with a second inclined surface 441 and a third inclined surface 442 at one end facing the slot direction of the mounting slot 41. The second inclined surface 441 is located above the third inclined surface 442. The second inclined surface 441 is opened and tilted upward toward the outer wall of the sleeve rod 42, so that the inclination direction of the second inclined surface 441 is consistent with the inclination direction of the first inclined surface 321. The third inclined surface 442 is opened and tilted downward toward the outer wall of the sleeve rod 42, so that the inclination direction of the third inclined surface 442 is opposite to the inclination direction of the first inclined surface 321. An embedding groove 4321 for the second inclined surface 441 to be embedded is opened at the plane portion 432, and the bottom of the embedding groove 4321 is welded to the upper end of the sleeve rod 42.

[0042] The implementation principle of a cylinder head cover of the present application embodiment is as follows: after the engine oil is loaded from the engine oil inlet 11, the connecting column 22 is aligned with the direction of the connecting groove 111 and inserted into the connecting groove 111. When the threaded portion 221 contacts the movable threaded portion 1111, the cover plate 21 is rotated so that the threaded portion 221 is threadedly connected with the movable threaded portion 1111. When the threaded portion 221 is threadedly connected with the movable threaded portion 1111, the cover plate 21 is continuously pressed downward. At this time, the connection The column 22 moves toward the bottom of the lending groove 31 under the squeezing action of the groove wall of the connecting groove 111. When the cover plate 21 is pressed until the connecting column 22 passes through the semicircular first clamping block 43, the connecting column 22 is no longer squeezed by the groove wall of the connecting groove 111. The connecting column 22 pops out toward the notch of the lending groove 31 under the action of the second return spring 33. After the connecting column 22 pops out, it abuts against the flat surface 432 of the first clamping block 43, and the oil cover 2 is fixed to the connecting groove 111.

[0043] When it is necessary to add oil from the oil inlet 11 or discharge oil from the oil outlet 12, since there is a certain gap between the cover plate 21 and the edge of the notch of the connecting groove 111, the cover plate 21 can be pressed downwards. At this time, the first inclined surface 321 slowly moves toward the bottom of the lending groove 31 under the cooperation of the second inclined surface 441, and then gradually moves toward the notch of the lending groove 31 under the action of the third inclined surface 442. When the cover plate 21 is pressed and abuts against the edge of the notch of the connecting groove 111, the cover plate 21 can be pulled upwards. At this time, under the cooperation of the first inclined surface 321 and the third inclined surface 442, the first inclined surface 321 and the third inclined surface 442 are pressed downwards. The second clamping block 44 is driven to move upward, and when the second clamping block 44 abuts against the planar portion 432 of the first clamping block 43, the first inclined surface 321 gradually moves toward the bottom of the lending groove 31 under the action of the third inclined surface 442, and then the cover plate 21 is pulled to move the clamping column 32 out of the installation groove 41 along the semicircular portion 431 and the chamfer 411 of the first clamping block 43. Under the pressure of the groove wall of the connecting groove 111, the clamping column 32 is squeezed into the lending groove 31, and then the cover plate 21 is rotated to disconnect the threaded connection between the threaded portion 221 and the movable threaded portion 1111, and the oil cover 2 can be taken out of the connecting groove 111.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cylinder head cover, characterized in that: The invention comprises a cover body (1) and a pair of oil covers (2), wherein the cover body (1) is provided with an oil inlet (11) and an oil outlet (12), wherein the oil inlet (11) and the oil outlet (12) are both provided with a connecting groove (111), wherein the pair of oil covers (2) are respectively connected to the connecting grooves (111), wherein the oil cover (2) comprises a cover plate (21) and a connecting column (22) connected to each other, wherein the outer wall of the connecting column (22) is provided with a threaded portion (221), and the groove wall of the connecting groove (111) is provided with a threaded portion (221) connected to the threaded portion (221). 1) a movable threaded portion (1111) for mating threaded connection, a first return spring (1112) is provided between the end of the movable threaded portion (1111) away from the notch of the connecting groove (111) and the bottom of the connecting groove (111), a plurality of elastic clips (3) are provided at equal intervals on the outer wall of the end of the connecting column (22) close to the end connected to the cover plate (21), and a clip (4) for mating with the elastic clip (3) is provided on the groove wall of the connecting groove (111) close to the notch end.

2. The cylinder head cover according to claim 1, characterized in that: The elastic clamping member (3) comprises a clamping column (32) and a second return spring (33) connected to the clamping column (32); a plurality of equally spaced lending grooves (31) are provided on the outer side wall of the connecting column (22); an end of the second return spring (33) which is away from the end connected to the clamping column (32) is connected to the bottom of the lending groove (31).

3. The cylinder head cover according to claim 2, characterized in that: The clamping member (4) comprises a first clamping block (43) and a second clamping block (44); a plurality of equally spaced mounting grooves (41) are provided on the groove wall of the connecting groove (111); a sleeve rod (42) is provided in the mounting groove (41); the first clamping block (43) is connected to one end of the sleeve rod (42) close to the notch of the connecting groove (111); and the second clamping block (44) is movably sleeved on the sleeve rod (42).

4. The cylinder head cover according to claim 3, characterized in that: The first clamping block (43) is semicircular, and the end of the clamping column (32) away from the end connected to the second return spring (33) is provided with a first inclined surface (321) matching the first clamping block (43).

5. The cylinder head cover according to claim 4, characterized in that: A second inclined surface (441) and a third inclined surface (442) are provided at one end of the second clamping block (44) facing the slot opening of the installation slot (41); the second inclined surface (441) is located at one end of the second clamping block (44) close to the first clamping block (43); and the third inclined surface (442) is located at one end of the second clamping block (44) away from the first clamping block (43).

6. The cylinder head cover according to claim 5, characterized in that: The second inclined surface (441) has an inclination direction consistent with that of the first inclined surface (321), and the third inclined surface (442) has an inclination direction opposite to that of the first inclined surface (321).

7. The cylinder head cover according to claim 3, characterized in that: The mounting groove (41) is provided with a chamfer (411) at the groove edge close to the groove of the connecting groove (111).

8. The cylinder head cover according to claim 1, characterized in that: A sealing ring groove (222) is provided on the outer side wall of the connecting column (22), and a sealing ring (2221) is provided in the sealing ring groove (222).

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