Automobile gearbox with breather pipe

Abstract

The utility model relates to the field of gearboxes, and discloses an automobile gearbox with a breather pipe, which comprises a gearbox body and the breather pipe arranged on the gearbox body, an opening and closing component used for opening and closing the breather pipe is arranged in the breather pipe, and the opening and closing component comprises a blocking plate which can block the breather pipe after being installed in the breather pipe. An anti-disengaging part for preventing the blocking plate from disengaging from the interior of the ventilation pipe after the blocking plate is installed in the ventilation pipe is arranged on the ventilation pipe, and the blocking plate arranged in the mechanism can be inserted into the ventilation pipe, so that the interior of the ventilation pipe is blocked, the probability that dust and other objects enter the gearbox body is reduced, the service life of the gearbox is prolonged, and the service life of the gearbox is prolonged. The anti-falling part arranged in the vent pipe can reduce the probability that the plugging plate falls off from the vent pipe, and meanwhile when the plugging plate needs to be taken out from the vent pipe, the plugging plate can be taken out from the vent pipe only by releasing the limiting of the part to the plugging plate, so that the vent pipe is more convenient to open and close.

Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox field especially relates to a car gearbox with vent pipe. BACKGROUND

[0002] The Chinese patent with the publication number CN218267148U discloses a kind of vent structure for automobile gearbox, including gearbox body, the top of the gearbox body is connected with vent pipe, the surface of the vent pipe is threadedly connected with vent cover, transmission bin is set in vent cover, the right side of transmission bin inner wall is fixedly connected with motor, the output of motor is fixedly connected with first gear, first gear top is engaged with second gear, the left side of second gear is fixedly connected with connecting sleeve, the inside of connecting sleeve is threadedly connected with screw rod, the left side of screw rod is fixedly connected with sealing block.

[0003] The sealing block in the above structure can be moved horizontally under the drive of screw rod, thereby realizing the sealing or opening of vent pipeline, but the movement of sealing block needs to be driven by motor to drive first gear to rotate, and when first gear rotates, it will drive second gear engaged with it to rotate, and when second gear rotates, it will drive screw rod to move inside connecting sleeve, at this time, the sealing block set on the left side of screw rod can move inside vent pipe to open or close vent pipe, resulting in that the process of driving sealing block to move is relatively complex and the use cost is relatively high. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of automobile gearbox with vent pipe and vent pipe opening and closing convenient in view of the shortcomings that the process of prior art driving sealing block to move is relatively complex and use cost is relatively high.

[0005] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A kind of automobile gearbox with vent pipe, including gearbox body and the vent pipe set on gearbox body, vent pipe is provided with opening and closing component for opening and closing vent pipe, the opening and closing component includes the blocking plate that can be blocked vent pipe after being installed to the inside of vent pipe, vent pipe is provided with anti-drop component that prevents blocking plate from dropping out of the inside of vent pipe after being installed to the inside of vent pipe.

[0007] By the above scheme, the blocking plate set can be inserted into the inside of vent pipe, thereby blocking the inside of vent pipe, reduce the probability that dust and the like enter into gearbox body, improve the service life of gearbox, and the anti-drop component set in vent pipe can reduce the probability that blocking plate drops out of vent pipe, and when blocking plate needs to be taken out from vent pipe, only need to remove the limiting of component component to blocking plate, i.e. blocking plate can be taken out from vent pipe, so that the opening and closing of vent pipe is more convenient.

[0008] As preferred, the anti-extraction component comprises a plurality of receiving grooves arranged on the inner wall of the ventilation pipe in a circumferential direction, and an anti-extraction plate arranged in the receiving groove in a telescopic manner and capable of limiting the extraction of the sealing plate installed in the ventilation pipe when the anti-extraction plate is extended.

[0009] With the above scheme, the anti-extraction plate arranged in the receiving groove in a telescopic manner can limit the sealing plate installed in the ventilation pipe when the anti-extraction plate is partially extended out of the receiving groove, thereby reducing the probability of extraction of the sealing plate from the ventilation pipe. The reset component arranged between the receiving groove and the anti-extraction plate can drive the anti-extraction plate to keep in a state of partial extension out of the receiving groove in a normal state, and can also drive the anti-extraction plate to extend out of the receiving groove after the anti-extraction plate is retracted into the receiving groove when the external force applied to the anti-extraction plate is lost, so that the anti-extraction plate keeps in a state of partial extension out of the receiving groove to limit the sealing plate installed in the ventilation pipe.

[0010] As preferred, the reset component comprises a reset spring arranged between the receiving groove and the anti-extraction plate, and the two ends of the reset spring are respectively in abutment with the bottom of the receiving groove and the end of the anti-extraction plate close to the bottom of the receiving groove.

[0011] With the above scheme, the reset spring arranged between the receiving groove and the anti-extraction plate can drive the anti-extraction plate to keep in a state of partial extension out of the receiving groove in a normal state, and the anti-extraction plate can limit the sealing plate installed in the ventilation pipe when the anti-extraction plate is partially extended out of the receiving groove, thereby reducing the probability of extraction of the sealing plate from the ventilation pipe. The reset spring can also drive the anti-extraction plate to extend out of the receiving groove after the anti-extraction plate is retracted into the receiving groove.

[0012] As preferred, the anti-extraction plate is provided with a guide slope for facilitating the retraction of the anti-extraction plate into the receiving groove when the sealing plate is installed in the ventilation pipe.

[0013] With the above scheme, when the sealing plate is installed in the ventilation pipe, the sealing plate will be in abutment with the guide slope on the anti-extraction plate, and the anti-extraction plate will be gradually retracted into the receiving groove as the sealing plate continues to penetrate, thereby facilitating the installation of the sealing plate in the ventilation pipe by the operator.

[0014] As preferred, the ventilation pipe is provided with a pulling component for facilitating the retraction of the anti-extraction plate into the receiving groove when the sealing plate needs to be taken out of the ventilation pipe.

[0015] As preferred, the pulling component comprises a through slot in communication with the receiving groove and arranged in the ventilation pipe along the telescopic direction of the anti-extraction plate, and a pulling rod connected to the anti-extraction plate at one end and extending out of the through slot at the other end.

[0016] With the above scheme, the pulling rod arranged in the slot can drive the anti-dropping plate to move into the storage slot when the blocking plate needs to be taken out from the inside of the breather pipe, so that the blocking plate is stored in the storage slot, and the breather pipe is opened, thereby realizing the air circulation between the inside and outside of the gearbox.

[0017] Preferably, the blocking block arranged at the position where the pulling rod extends out of the breather pipe prevents the pulling rod from being completely retracted into the slot.

[0018] With the above scheme, the blocking block arranged at the position where the pulling rod extends out of the breather pipe prevents the pulling rod from being completely retracted into the slot.

[0019] Preferably, the breather pipe is provided with a mounting hole with a diameter larger than the inner diameter of the breather pipe, the diameter of the blocking plate matches the diameter of the mounting hole, and the bottom of the mounting hole is provided with an elastic component for driving the blocking plate to automatically pop out of the mounting hole when the anti-dropping plate is retracted into the storage slot.

[0020] Preferably, the elastic component includes a plurality of compression springs arranged circumferentially in the mounting hole, and the compression springs are compressed under the force when the blocking plate is installed in the mounting hole and positioned by the anti-dropping plate.

[0021] With the above scheme, the compression spring arranged in the mounting hole can be compressed under the force when the blocking plate is installed in the mounting hole and positioned by the anti-dropping plate, at which time the compression spring exerts a counterforce on the blocking plate, so that the blocking plate is pressed against the surface of the anti-dropping plate, and when the anti-dropping plate is retracted into the storage slot, the compression spring compressed under the force is restored, thereby pushing the blocking plate out of the breather pipe.

[0022] The utility model discloses a kind of automobile gearboxes with breather pipe, which comprises breather pipe, blocking plate, anti-dropping plate and reset spring, blocking plate is arranged in the inside of breather pipe, and anti-dropping plate is arranged in the inside of blocking plate, and reset spring is arranged in the inside of anti-dropping plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of a kind of automobile gearbox with breather pipe in the embodiment;

[0024] Figure 2 isFigure 1 Enlarged view of A in the middle;

[0025] Figure 3 is a sectional view of an automobile gearbox with a breather pipe in the embodiment;

[0026] Figure 4 is Figure 3 Enlarged view of B in the middle.

[0027] The part names referred to by the respective reference numerals in the above drawings are as follows: 1, gearbox body; 2, breather pipe; 3, blocking plate; 4, receiving groove; 5, anti-falling plate; 6, return spring; 7, lead-in slope; 8, pull rod; 9, blocking block; 10, mounting hole; 11, compression spring; 12, through groove. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings and embodiments.

[0029] EMBODIMENT

[0030] An automobile gearbox with a breather pipe, referring to Figures 1-2 , comprising a gearbox body 1 and a breather pipe 2 provided on the gearbox body 1, a start-stop component for starting and stopping the breather pipe 2 is provided in the breather pipe 2, the start-stop component comprises a blocking plate 3 mounted to the inside of the breather pipe 2 and capable of blocking the breather pipe 2, and an anti-falling component is provided on the breather pipe 2 to prevent the blocking plate 3 from falling out of the breather pipe 2 when the blocking plate 3 is mounted to the inside of the breather pipe 2.

[0031] Referring to Figures 3-4 , the anti-falling component comprises a plurality of receiving grooves 4 provided on the inner wall of the breather pipe 2 in a circumferential direction, an anti-falling plate 5 is provided in the receiving groove 4 and is capable of being retracted into the receiving groove 4 and extending out of the receiving groove 4, the anti-falling plate 5 limits the blocking plate 3 mounted to the inside of the breather pipe 2 from falling out of the breather pipe 2 when the anti-falling plate 5 extends out of the receiving groove 4, a return component is provided between the receiving groove 4 and the anti-falling plate 5 to drive the anti-falling plate 5 to be partially extended out of the receiving groove 4 in a normal state and to drive the anti-falling plate 5 to return to extend out of the receiving groove 4 after the anti-falling plate 5 is retracted into the receiving groove 5, the return component comprises a return spring 6 provided between the receiving groove 4 and the anti-falling plate 5, the two ends of the return spring 6 are respectively in abutment with the groove bottom of the receiving groove 4 and the end of the anti-falling plate 5 close to the groove bottom of the receiving groove 4, a lead-in slope 7 is provided on the anti-falling plate 5 to facilitate the blocking plate 3 to be mounted to the inside of the breather pipe 2 to retract the anti-falling plate 5 into the receiving groove 4, and two groups of anti-falling components are provided in the breather pipe 2 in the embodiment.

[0032] The ventilation pipe 2 is provided with a pulling component facilitating the operator to pull the anti-dropping plate 5 back to the storage groove 4 when the sealing plate 3 needs to be taken out from the ventilation pipe 2, the pulling component comprises a through slot 12 in communication with the storage groove 4 and arranged along the extension direction of the anti-dropping plate 5 in the ventilation pipe 2, and a pulling rod 8 with one end connected with the anti-dropping plate 5 and the other end extending out of the through slot 12, the pulling rod 8 extends out of the ventilation pipe 2 and is provided with a blocking block 9 preventing the pulling rod 8 from being completely retracted into the through slot 12, and the reset spring 6 is sleeved on the pulling rod 8 in the embodiment.

[0033] The ventilation pipe 2 is provided with an installation hole 10 with a diameter larger than the inner diameter of the ventilation pipe 2, the sealing plate 3 has a diameter matched with the diameter of the installation hole 10, and the bottom of the installation hole 10 is provided with an elastic component driving the sealing plate 3 to automatically pop out from the installation hole 10 when the anti-dropping plate 5 is retracted into the storage groove 4, the elastic component comprises a plurality of compression springs 11 circumferentially arranged in the installation hole 10, and the sealing plate 3 is installed into the installation hole 10 and the compression springs 11 are forced to compress when the position of the sealing plate 3 is limited by the anti-dropping plate 5.

[0034] Specific disassembly process: when the sealing plate 3 needs to be installed into the ventilation pipe 2, first, the sealing plate 3 is aligned with the installation hole 10 on the ventilation pipe 2, and then the sealing plate 3 is installed into the installation hole 10, during the process of installing the sealing plate 3 into the installation hole 10, the sealing plate 3 will abut against the lead-in slope 7 on the anti-dropping plate 5, and with the continuous deepening of the sealing plate 3, the sealing plate 3 will press the lead-in slope 7 on the anti-dropping plate 5, at this time, the anti-dropping plate 5 will gradually retract into the storage groove 4, and when the sealing plate 3 passes the position of the anti-dropping plate 5, the anti-dropping plate 5 will lose the pressing of the sealing plate 3, the reset spring 6 arranged between the storage groove 4 and the anti-dropping plate 5 will push the anti-dropping plate 5 to move out of the storage groove 4, thereby limiting the sealing plate 3, and when the sealing plate 3 moves to the deep part of the installation hole 10, the sealing plate 3 will also press the compression springs 11 arranged in the installation hole 10, so that the compression springs 11 are forced to compress; when the sealing plate 3 needs to be taken out from the ventilation pipe 2, first, the blocking block 9 on both sides of the ventilation pipe 2 is pulled, so that the blocking block 9 drives the pulling rod 8 and the anti-dropping plate 5 fixed with the pulling rod 8 to move, at this time, the anti-dropping plate 5 will gradually retract into the storage groove 4, and when the anti-dropping plate 5 is completely retracted into the storage groove 4, the compression springs 11 arranged in the installation hole 10 will recover, thereby pushing the sealing plate 3 to be taken out from the ventilation pipe 2.

[0035] The above only describes the preferred embodiments of the present application, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solutions falling within the idea of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application shall also be considered as the protection scope of the present application.

Claims

1. A vehicle transmission with a breather pipe, comprising a transmission body (1) and a breather pipe (2) arranged on the transmission body (1), a breather pipe opening and closing member for opening and closing the breather pipe (2) being arranged in the breather pipe (2), characterized in that: The opening and closing component includes a blocking plate (3) installed inside the ventilation pipe (2) to block the ventilation pipe (2), and a anti-falling component is arranged on the ventilation pipe (2) to prevent the blocking plate (3) from falling out of the ventilation pipe (2) after the blocking plate (3) is installed inside the ventilation pipe (2).

2. A vehicle transmission with breather tube as claimed in claim 1 wherein: The anti-falling component includes a plurality of receiving grooves (4) arranged on the inner wall of the ventilation pipe (2) in a circumferential direction, and an anti-falling plate (5) is arranged in the receiving groove (4) in an extendable and retractable manner, and the anti-falling plate (5) limits the blocking plate (3) installed inside the ventilation pipe (2) from falling out of the ventilation pipe (2) when the anti-falling plate (5) is extended, and a reset component is arranged between the receiving groove (4) and the anti-falling plate (5) to drive the anti-falling plate (5) to be partially extended out of the receiving groove (4) in a normal state and to reset the anti-falling plate (5) to be extended out of the receiving groove (4) after the anti-falling plate (5) is received into the receiving groove (4).

3. A vehicle transmission with breather tube as claimed in claim 2 wherein: The reset component includes a reset spring (6) arranged between the receiving groove (4) and the anti-falling plate (5), and the two ends of the reset spring (6) are respectively in abutment with the groove bottom of the receiving groove (4) and the end of the anti-falling plate (5) close to the groove bottom of the receiving groove (4).

4. The automotive transmission with breather tube of claim 2, wherein: The anti-falling plate (5) is provided with a guide slope (7) for facilitating the blocking plate (3) to be installed into the ventilation pipe (2) to retract the anti-falling plate (5) into the receiving groove (4).

5. The automotive transmission with breather tube of claim 2, wherein: The ventilation pipe (2) is provided with a pulling component for facilitating an operator to pull the anti-falling plate (5) to retract into the receiving groove (4) when the blocking plate (3) needs to be taken out of the ventilation pipe (2).

6. A vehicle transmission with breather tube as claimed in claim 5 wherein: The pulling component includes a through groove (12) arranged in the ventilation pipe (2) along the extension and retraction direction of the anti-falling plate (5) and in communication with the receiving groove (4), and a pulling rod (8) connected to the anti-falling plate (5) at one end and extending out of the through groove (12) at the other end.

7. A vehicle transmission with breather tube as claimed in claim 6 wherein: The pulling rod (8) extending out of the ventilation pipe (2) is provided with a blocking block (9) to prevent the pulling rod (8) from being completely retracted into the through groove (12).

8. The automotive transmission with breather tube of claim 2, wherein: The ventilation pipe (2) is provided with an installation hole (10) with a diameter larger than the inner diameter of the ventilation pipe (2), the diameter of the blocking plate (3) matches the diameter of the installation hole (10), and the bottom of the installation hole (10) is provided with an elastic component to drive the blocking plate (3) to automatically pop out of the installation hole (10) when the anti-falling plate (5) is retracted into the receiving groove (4).

9. A vehicle transmission with breather tube as claimed in claim 8 wherein: The elastic component includes a plurality of compression springs (11) arranged on the inner circumferential direction of the installation hole (10), and the compression springs (11) are forced to compress when the blocking plate (3) is installed into the installation hole (10) and the position of the anti-falling plate (5).

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