An improved buffer type parking lock reducer

Abstract

The present invention discloses an improved buffer type parking lock reducer, comprising a reducer main shell, one side of the reducer main shell is connected to a motor fixed end cover by an inner hexagonal screw, the top of the reducer main shell away from the motor fixed end cover is connected to a worm fixed end cover by an inner hexagonal screw, the center of the worm fixed end cover is connected to a transmission worm, both sides of the middle of the transmission worm are sleeved with a buffer spring and a buffer plane bearing, both sides of the bottom of the reducer main shell are fixedly connected with a holder, a slot is provided in the middle of the holder, a block is connected to the slot in a clamping connection, and the block is fixedly connected to the top of the bottom plate. The present invention provides an improved buffer type parking lock reducer, which improves the protection of the machine body, avoids the problem of thread tooth damage between the worm wheel and the worm, and prolongs the service life of the parking lock reducer; a holder, a limiting bevel block, a contraction spring, a fixed block and a pull rod are provided, which are convenient for disassembly and maintenance, and improves the work efficiency of relevant personnel.

Description

Technical Field

[0001] The invention relates to the field of processing, in particular to an improved buffer type parking lock reducer. Background Art

[0002] Parking lock is a mechanical device installed on the ground to prevent others from occupying the parking space. It is also called parking ground lock. It is widely used in parking communities or parking lots. According to the control method, it can be roughly divided into manual parking lock and electric parking lock. The reducer is one of the indispensable components of the electric parking lock. It plays the role of matching the speed and transmitting the torque between the prime mover and the working machine or the actuator, and has a certain protection function.

[0003] However, traditional parking lock reducers do not have a buffering function. When impacted by external force, thread tooth damage is likely to occur between the worm wheel and the worm, which not only shortens the service life of the parking lock reducer, but also causes tooth jumping failures in the parking lock reducer, making it impossible to match the speed and transmit torque, affecting the working reliability of the parking lock reducer. At the same time, the bottom cover of the existing reducer is usually a fixed connection. When a problem occurs inside the reduction motor, it is inconvenient to open it for maintenance, which reduces efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an improved buffer type parking lock reducer to solve the problem raised in the above background technology. However, the traditional parking lock reducer does not have a buffer function. When impacted by external force, thread tooth damage is very likely to occur between the worm wheel and the worm, which not only shortens the service life of the parking lock reducer, but also causes tooth jumping failure of the parking lock reducer, making it impossible to match the rotational speed and transmit torque, affecting the working reliability of the parking lock reducer. At the same time, the bottom cover of the existing reducer is usually a fixed connection. When a problem occurs inside the reduction motor, it is inconvenient to open it for maintenance, which reduces efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an improved buffer-type parking lock reducer, comprising a reducer main housing, one side of the reducer main housing is connected to a motor fixed end cover by a hexagon socket screw, the side of the motor fixed end cover away from the reducer main housing is connected to a motor waterproof cover by a cross screw, a power motor is installed in the middle of the motor fixed end cover by a hexagon socket screw, the output end of the power motor is fixedly sleeved with a motor connecting sleeve, the inner edge of the bottom of the reducer main housing is fixedly connected to the top of the bottom plate, and the top of the reducer main housing away from the motor fixed end cover is connected by a hexagon socket screw. A worm fixed end cover is connected, a transmission worm is connected to the center of the worm fixed end cover, one end of the transmission worm away from the worm fixed end cover is connected to the middle of one side of the motor fixed end cover, and the connection between the transmission worm and the worm fixed end cover and the motor fixed end cover is sleeved with a worm end cover waterproof oil seal ring and a worm fixed shaft sleeve, both sides of the middle of the transmission worm are sleeved with a buffer spring and a buffer plane bearing, and the center of the transmission worm away from the motor fixed end cover is fixedly sleeved with a worm manual rotating screw, and the outer circumference of the motor connecting shaft sleeve is fixedly sleeved with the center of the transmission worm away from the worm fixed end cover.

[0006] As a preferred technical solution of the present invention, both sides of the bottom of the reducer main housing are fixedly connected with a socket, a slot is opened in the middle of the socket, a block is connected to the slot, the block is fixedly connected to the top of the bottom plate, and the top of the block is fixedly connected to a limited inclined block. The bottoms of both sides of the reducer main housing are interspersed with pull rods, one end of the pull rod is fixedly connected with a fixed block, and the fixed block extends through the inner wall of the socket to the inside of the slot, a contraction spring is sleeved on one side of the middle of the pull rod, and one end of the contraction spring is fixedly connected to the surface of the inner wall of the reducer main housing, an anti-impact spring is fixedly connected to the bottom of the inner wall of the reducer main housing, and a rubber protective plate is fixedly connected to the bottom of the anti-impact spring, a first reinforcing rib is fixedly connected to one side of the middle of the inner wall of the reducer main housing, and a second reinforcing rib is fixedly connected to the other side of the middle of the inner wall of the reducer main housing.

[0007] As a preferred technical solution of the present invention, the transmission worm gear shaft is configured as a hollow shaft, and the transmission worm gear shaft is provided with a through hole for inserting the rotating shaft of the parking lock.

[0008] As a preferred technical solution of the present invention, the transmission worm gear shaft is configured as a solid shaft. One end of the transmission worm gear shaft is provided with a coupling connection end for coupling connection.

[0009] As a preferred technical solution of the present invention, the bottom of the front side of the reducer main housing is connected to a worm gear shaft fixing end cover by a hexagon socket screw, the center of the worm gear shaft fixing end cover is connected to a transmission worm gear shaft, the end of the transmission worm gear shaft away from the worm gear shaft fixing end cover is connected to the bottom end of the back side of the reducer main housing, and the connection between the transmission worm gear shaft, the worm gear shaft fixing end cover and the reducer main housing is sleeved with a worm gear shaft fixing sleeve and a worm gear shaft waterproof oil seal ring, and the middle part of the transmission worm gear shaft is sleeved with a transmission worm wheel, and the transmission worm wheel is connected to the transmission worm gear.

[0010] As a preferred technical solution of the present invention, convex rings are provided on both sides of the surface of the transmission worm, one end of the two buffer springs are respectively in contact with the two convex rings, the other ends of the two buffer springs are respectively in contact with one side of two buffer plane bearings, and the other sides of the two buffer plane bearings are respectively in contact with the inner surfaces of the worm fixed end cover and the motor fixed end cover.

[0011] As a preferred technical solution of the present invention, the inner surface of one side of the worm fixed end cover, the inner surface of one side of the motor fixed end cover and the inner surface of the back side of the worm shaft fixed end cover are respectively sleeved with a worm end cover waterproof ring, a motor end cover waterproof ring and a worm shaft end cover waterproof ring.

[0012] As a preferred technical solution of the present invention, a motor waterproof oil seal ring is embedded in the middle of the motor fixed end cover away from the reducer main housing, and the motor waterproof oil seal ring is sleeved with the surface of the power motor output end.

[0013] As a preferred technical solution of the present invention, the top of the reducer main housing is threadedly connected with a central bolt, the side of the pull rod away from the reducer main housing is fixedly connected with a pull head, and both sides of the pull head are fixedly connected with fixing strips.

[0014] As a preferred technical solution of the present invention, a fixing hole is opened on the side of the reducer main housing facing the motor fixed end cover, and the fixing hole is provided with a fixing sleeve, and one end of the transmission worm passes through the fixing sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A transmission worm, a buffer spring, a buffer plane bearing, an anti-impact spring and a rubber protective plate are arranged. When subjected to external impact, the anti-impact spring and the rubber protective plate can reduce the impact force on the top of the reducer main housing. The buffer spring enables the worm to remove potential energy through axial movement, thereby avoiding the problem of thread tooth damage between the worm wheel and the worm. This not only extends the service life of the parking lock reducer, but also makes the parking lock reducer less prone to tooth jumping failure, can normally match the speed and transmit torque, and enhances the working reliability of the parking lock reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front cross-sectional view of the overall structure of Example 1 of the present invention;

[0018] Figure 2 is a left sectional view of the overall structure of Embodiment 1 of the present invention;

[0019] Figure 3 It is a schematic diagram of the overall structure decomposition of Example 1 of the present invention;

[0020] Figure 4 is a schematic structural diagram of a transmission worm gear shaft according to Embodiment 1 of the present invention;

[0021] Figure 5 is a schematic structural diagram of a motor fixed end cover according to Embodiment 1 of the present invention;

[0022] Figure 6 yes Figure 1 A in the enlarged view;

[0023] Figure 7 It is a schematic diagram of the overall structure decomposition of Example 2 of the present invention;

[0024] Figure 8 It is a schematic structural diagram of the transmission worm gear shaft of Example 2 of the present invention.

[0025] Figures 1 to 8 :1. Reducer main housing; 2. Bottom plate; 3. Worm fixed end cover; 4. Worm end cover waterproof oil seal ring; 5. Worm fixed shaft sleeve; 6. Transmission worm; 7. Buffer spring; 8. Buffer plane bearing; 9. Worm manual rotation screw; 10. Motor fixed end cover; 101. Fixing hole; 102. Fixing sleeve; 103. Side plate; 104. Reinforcement plate; 105. Bottom plate; 11. Motor waterproof cover; 12. Power motor; 13. Motor connecting shaft sleeve; 14. Worm shaft fixed end cover; 15. Worm shaft fixed shaft sleeve; 16. Worm shaft waterproof cover Water and oil seal ring; 17, transmission worm gear shaft; 171, through hole; 172, coupling connection end; 18, transmission worm gear; 19, worm end cover waterproof ring; 20, motor end cover waterproof ring; 21, worm gear shaft end cover waterproof ring; 22, motor waterproof oil seal ring; 23, center bolt; 24, first reinforcing rib; 25, second reinforcing rib; 26, anti-impact spring; 27, rubber protective plate; 28, holder; 29, slot; 30, limit inclined block; 31, block; 32, contraction spring; 33, fixing block; 34, pull rod; 35, pull head. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 6This is embodiment 1 of the present invention, an improved buffer type parking lock reducer, comprising a reducer main housing 1, one side of the reducer main housing 1 is connected to a motor fixed end cover 10 by a hexagon socket screw, the side of the motor fixed end cover 10 away from the reducer main housing 1 is connected to a motor waterproof cover 11 by a cross screw, the middle of the motor fixed end cover 10 is installed with a power motor 12 by a hexagon socket screw, the output end of the power motor 12 is fixedly sleeved with a motor connecting shaft sleeve 13, the inner edge of the bottom of the reducer main housing 1 is connected to the bottom The top of the reducer main housing 1 is connected to the worm fixed end cover 3 by a hexagon socket screw on the side away from the motor fixed end cover 10. The center of the worm fixed end cover 3 is connected to the transmission worm 6. The end of the transmission worm 6 away from the worm fixed end cover 3 is connected to the middle of the motor fixed end cover 10. The connection between the transmission worm 6 and the worm fixed end cover 3 and the motor fixed end cover 10 is sleeved with a worm end cover waterproof oil seal ring 4 and a worm fixed shaft sleeve 5. Both sides of the middle of the transmission worm 6 are sleeved with The buffer spring 7 and the buffer plane bearing 8 are provided, and the center of the transmission worm 6 away from the motor fixed end cover 10 is fixedly sleeved with a worm manual rotating screw 9, the outer circumference of the motor connecting shaft sleeve 13 is fixedly sleeved with the center of the transmission worm 6 away from the worm fixed end cover 3, both sides of the bottom of the reducer main housing 1 are fixedly connected with a card seat 28, a card slot 29 is provided in the middle of the card seat 28, and a card block 31 is connected in the card slot 29, and the card block 31 is fixedly connected to the top of the bottom plate 2, and the top of the card block 31 is fixedly connected There is a limiting inclined block 30, and the bottom of both sides of the reducer main housing 1 are interspersed with pull rods 34, one end of the pull rod 34 is fixedly connected to a fixed block 33, and the fixed block 33 passes through the inner wall of the holder 28 and extends to the inside of the slot 29. A contraction spring 32 is sleeved on one side of the middle part of the pull rod 34, and one end of the contraction spring 32 is fixedly connected to the surface of the inner wall of the reducer main housing 1, and an anti-impact spring 26 is fixedly connected to the bottom of the inner wall of the reducer main housing 1, and a rubber protective plate 27 is fixedly connected to the bottom of the anti-impact spring 26. When impacted by external force, the anti-impact spring 26 and the rubber protective plate 27 can reduce the impact force on the top of the reducer main housing 1. The buffer spring 7 enables the worm to remove potential energy through axial movement, thereby avoiding the problem of thread tooth damage between the worm gear of the reducer and enhancing the working reliability of the parking lock reducer. A first reinforcing rib 24 is fixedly connected to one side of the middle of the inner wall of the reducer main housing 1, and a second reinforcing rib 25 is fixedly connected to the other side of the middle of the inner wall of the reducer main housing 1. The reducer main housing 1 is connected to the block 31 of the base plate 2 through the socket 28. The limiting bevel block 30 connected to the block 31 is limited by the contraction spring 32 and the fixed block 33 when it is inside. When disassembling, the pull rod 34 is pulled to move the fixed block 33, and the disassembly is completed by directly pulling down the base plate 2, which is convenient for maintenance and improves the work efficiency of relevant personnel.

[0028] Preferably, the bottom of the front side of the reducer main housing 1 is connected to a worm gear shaft fixing end cover 14 by an inner hexagonal screw, and the center of the worm gear shaft fixing end cover 14 is connected to a transmission worm gear shaft 17, and the end of the transmission worm gear shaft 17 away from the worm gear shaft fixing end cover 14 is connected to the bottom end of the back side of the reducer main housing 1, and the connection between the transmission worm gear shaft 17, the worm gear shaft fixing end cover 14 and the reducer main housing 1 is sleeved with a worm gear shaft fixing sleeve 15 and a worm gear shaft waterproof oil seal ring 16, and the middle part of the transmission worm gear shaft 17 is sleeved with a transmission worm wheel 18, and the transmission worm wheel 18 is transmission-connected with the transmission worm 6, and the transmission worm wheel 18 is arranged to cooperate with the transmission worm 6 to complete the deceleration process; in this embodiment, the transmission worm gear shaft 17 is provided with a solid shaft, and one end of the transmission worm gear shaft 17 is provided with a coupling connection end 172 for coupling connection. In actual applications, the transmission worm gear shaft 17 needs to be connected to the rotating shaft of the parking lock through a coupling, and the coupling is sleeved on the coupling connection end 172.

[0029] Preferably, convex rings are provided on both sides of the surface of the transmission worm 6, one end of the two buffer springs 7 is in contact with the two convex rings respectively, the other ends of the two buffer springs 7 are in contact with one side of two buffer plane bearings 8 respectively, and the other sides of the two buffer plane bearings 8 are in contact with the inner surfaces of the worm fixed end cover 3 and the motor fixed end cover 10 respectively. The transmission worm 6 can move axially through the expansion and contraction of the buffer springs 7 to remove the vibration potential energy, thereby avoiding the problem of damage to the thread teeth.

[0030] Preferably, the inner surface of one side of the worm fixed end cover 3, the inner surface of one side of the motor fixed end cover 10 and the inner surface of the back side of the worm shaft fixed end cover 14 are respectively sleeved with a worm end cover waterproof ring 19, a motor end cover waterproof ring 20 and a worm shaft end cover waterproof ring 21, thereby improving the overall sealing of the reduction motor.

[0031] Preferably, a motor waterproof oil seal ring 22 is embedded in the middle of the motor fixed end cover 10 away from the reducer main housing 1, and the motor waterproof oil seal ring 22 is sleeved with the surface of the output end of the power motor 12, and the motor waterproof oil seal ring 22 improves the sealing of the power motor 12 connection.

[0032] Preferably, a center bolt 23 is threadedly connected to the top of the reducer main housing 1, a pull head 35 is fixedly connected to the side of the pull rod 34 away from the reducer main housing 1, and fixing strips are fixedly connected to the two sides of the pull head 35. The pull head 35 is provided to facilitate pulling the pull rod 34 to move the fixed block 33.

[0033] Preferably, a fixing hole 101 is opened on the side of the reducer main housing 1 facing the motor fixed end cover 10, and a fixing sleeve 102 is provided in the fixing hole 101. One end of the transmission worm 6 passes through the fixing sleeve 102, and the fixing sleeve 102 has the function of guiding and fixing the transmission worm 6.

[0034] In this example, the structure of the motor fixed end cover 10 includes a side plate 103, two reinforcing plates 104 and a bottom plate 105. The two reinforcing plates 104 are respectively connected to the two sides of the side plate 103, and the bottom plate 105 is arranged at the bottom of the side plate 103 and the two reinforcing plates 104. When in use, the side plate 103 is connected to the reducer main housing 1, and the two reinforcing plates 104 and the bottom plate 105 play a reinforcing role. The motor fixed end cover 10 of this structure is suitable for use in the reducer main housing 1 made of aluminum or cast iron. When the reducer main housing 1 is made of stainless steel, the structure of the motor fixed end cover 10 can achieve the connection strength by using one side plate 103.

[0035] When used specifically, the improved buffer parking lock reducer of the present invention first installs the reducer main housing 1 to the specified position through the bottom plate 2, and then turns on the power motor 12, and drives the transmission worm 6 to rotate on the worm fixed shaft sleeve 5 through the motor connecting sleeve 13, and then drives the transmission worm shaft 17 to rotate on the worm shaft fixed sleeve 15 through the transmission worm wheel 18, so as to achieve the effect of matching the rotation speed and transmitting the torque, and relies on the worm end cover waterproof oil seal ring 4, the worm shaft waterproof oil seal ring 16, the worm end cover waterproof ring 19, the motor end cover waterproof ring 20, the worm shaft end cover waterproof ring 21 and the motor waterproof oil seal ring 22 to achieve the waterproof sealing effect. When the parking lock is impacted by external force, the anti-impact spring 26 and the rubber waterproof seal ring 22 are used. The guard plate 27 can reduce the impact force on the top of the reducer main housing 1, and the buffer spring 7 enables the worm to remove potential energy through axial movement, thereby avoiding the problem of thread tooth damage between the worm gear of the reducer, which not only extends the service life of the parking lock reducer, but also makes the parking lock reducer less prone to tooth jumping failure, can normally match the speed and transmit torque, and enhances the working reliability of the parking lock reducer. The reducer main housing 1 is connected to the block 31 of the base plate 2 through the base 28. The limiting bevel block 30 connected to the block 31 is limited by the contraction spring 32 and the fixed block 33 when it is inside to prevent it from falling. When disassembling, pull the pull rod 34 to move the fixed block 33, and directly pull down the base plate 2 to complete the disassembly, which is convenient for maintenance and improves the work efficiency of relevant personnel.

[0036] See Figure 7 and Figure 8 This is the second embodiment of the present invention. Different from the first embodiment, in the present embodiment, the transmission worm gear shaft 17 is provided with a hollow shaft, and the transmission worm gear shaft 17 is provided with a through hole 171 for inserting the rotating shaft of the parking lock. In practical application, the transmission worm gear shaft 17 is directly connected to the rotating shaft of the parking lock, and the rotating shaft of the parking lock is inserted into the through hole 171 of the transmission worm gear shaft 17 and fixedly connected. The other structures are the same as those of the first embodiment, and will not be repeated here.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved buffer type parking lock reducer, comprising a reducer main housing (1), characterized in that: One side of the reducer main housing (1) is connected to a motor fixed end cover (10) via a hexagon socket screw, and the side of the motor fixed end cover (10) away from the reducer main housing (1) is connected to a motor waterproof cover (11) via a cross screw. A power motor (12) is installed in the middle of the motor fixed end cover (10) via a hexagon socket screw, and the output end of the power motor (12) is fixedly sleeved with a motor connecting shaft sleeve (13). The inner edge of the bottom of the reducer main housing (1) is fixedly connected to the top of the bottom plate (2), and the top of the reducer main housing (1) away from the motor fixed end cover (10) is connected to a worm fixed end via a hexagon socket screw. A worm gear (6) is connected to the center of the worm gear fixed end cover (3), and one end of the worm gear (6) away from the worm gear fixed end cover (3) is connected to the middle of one side of the motor fixed end cover (10), and the connection between the worm gear (6) and the worm gear fixed end cover (3) and the motor fixed end cover (10) is sleeved with a worm gear end cover waterproof oil seal ring (4) and a worm gear fixed shaft sleeve (5), and both sides of the middle of the worm gear (6) are sleeved with a buffer spring (7) and a buffer plane bearing (8), and the center of one end of the worm gear (6) away from the motor fixed end cover (10) is fixedly sleeved with a worm gear manual rotating screw (9), The outer circumference of the motor connecting shaft sleeve (13) is fixedly sleeved with the center of the transmission worm (6) away from the worm fixed end cover (3); the two sides of the bottom of the reducer main housing (1) are fixedly connected with a base (28), and a slot (29) is provided in the middle of the base (28). The slot (29) is snap-connected with a block (31), and the block (31) is fixedly connected to the top of the bottom plate (2). The top of the block (31) is fixedly connected with a limiting inclined block (30). The bottom of both sides of the reducer main housing (1) are interspersed with a pull rod (34), and one end of the pull rod (34) is fixedly connected with a fixed block (33). The fixing block (33) passes through the inner wall of the card seat (28) and extends to the inside of the card slot (29). A contraction spring (32) is sleeved on one side of the middle part of the pull rod (34), and one end of the contraction spring (32) is fixedly connected to the surface of the inner wall of the reducer main housing (1). An anti-impact spring (26) is fixedly connected to the bottom of the inner wall of the reducer main housing (1). A rubber protective plate (27) is fixedly connected to the bottom of the anti-impact spring (26). A first reinforcing rib (24) is fixedly connected to one side of the middle part of the inner wall of the reducer main housing (1), and a second reinforcing rib (25) is fixedly connected to the other side of the middle part of the inner wall of the reducer main housing (1).The bottom of the front side of the reducer main housing (1) is connected to a worm gear shaft fixing end cover (14) through a hexagon socket screw, the center of the worm gear shaft fixing end cover (14) is connected to a transmission worm gear shaft (17), one end of the transmission worm gear shaft (17) away from the worm gear shaft fixing end cover (14) is connected to the bottom of the back side of the reducer main housing (1), and the connection between the transmission worm gear shaft (17), the worm gear shaft fixing end cover (14) and the reducer main housing (1) is sleeved with a worm gear shaft fixing sleeve (15) and a worm gear shaft waterproof oil seal ring (16), and the middle part of the transmission worm gear shaft (17) is sleeved with a transmission worm wheel (18), and the transmission worm wheel (18) is drivingly connected to the transmission worm (6). ; 2. The improved buffer parking lock reducer according to claim 1 is characterized in that: The transmission worm gear shaft (17) is configured as a hollow shaft, and the transmission worm gear shaft (17) is provided with a through hole (171) for inserting a parking lock rotating shaft.

3. The improved buffer parking lock reducer according to claim 1 is characterized in that: The transmission worm gear shaft (17) is configured as a solid shaft, and one end of the transmission worm gear shaft (17) is provided with a coupling connection end (172) for connection with a coupling.

4. The improved buffer parking lock reducer according to claim 1 is characterized in that: Convex rings are provided on both sides of the surface of the transmission worm (6), one end of the two buffer springs (7) is in contact with the two convex rings respectively, the other end of the two buffer springs (7) is in contact with one side of two buffer plane bearings (8) respectively, and the other side of the two buffer plane bearings (8) is in contact with the inner surface of the worm fixed end cover (3) and the motor fixed end cover (10) respectively.

5. The improved buffer parking lock reducer according to claim 1 is characterized in that: The inner surface of one side of the worm fixed end cover (3), the inner surface of one side of the motor fixed end cover (10) and the inner surface of the back side of the worm shaft fixed end cover (14) are respectively sleeved with a worm end cover waterproof ring (19), a motor end cover waterproof ring (20) and a worm shaft end cover waterproof ring (21).

6. The improved buffer parking lock reducer according to claim 1 is characterized in that: A motor waterproof oil seal ring (22) is embedded in the middle of the motor fixed end cover (10) on the side away from the reducer main housing (1), and the motor waterproof oil seal ring (22) is sleeved with the surface of the output end of the power motor (12).

7. The improved buffer parking lock reducer according to claim 1 is characterized in that: The top of the reducer main housing (1) is threadedly connected with a central bolt (23), the pull rod (34) is fixedly connected with a pull head (35) on the side away from the reducer main housing (1), and the two sides of the pull head (35) are fixedly connected with fixing strips.

8. The improved buffer parking lock reducer according to claim 1 is characterized in that: The reducer main housing (1) is provided with a fixing hole (101) on the side facing the motor fixed end cover (10), the fixing hole (101) is provided with a fixing sleeve (102), and one end of the transmission worm (6) passes through the fixing sleeve (102).

Images