A hoist with good parking effect

Abstract

The present invention belongs to the technical field of elevators, and discloses an elevator with a good parking effect, comprising a support frame and a power assembly, wherein a lifting column and a steel wire are rotatably installed inside the support frame, a parking box is installed on the right side of the support frame, an air inlet and an air outlet are provided on the surface of the parking box, a brake column is rotatably installed on the inner wall of the parking box via the support column, a brake groove is provided on the top of the brake column, a hydraulic rod is installed on the inner wall of the parking box via a fixed frame, and a connecting plate is fixedly connected to the telescopic end of the hydraulic rod. The present invention further reduces the rotation speed of the brake column, so that the brake block moves down and successfully gets stuck in the inside of the brake groove, and relies on the brake block to get stuck in the inner wall of the brake groove to successfully stop the brake column. At this time, the rotation speed of the brake column is rapidly reduced due to the friction resistance of the first resistance ring and the second resistance ring. Therefore, the brake block can get stuck in the inside of the brake groove, realizing the emergency braking function.

Description

Technical Field

[0001] The invention belongs to the technical field of elevators, and in particular relates to an elevator with good parking effect. Background Art

[0002] In fishery production, goods need to be transported and transferred by hoists, and the hoists use motors to drive steel wires to rotate to achieve the purpose of lifting fishery goods, and vertical working traction is performed by overcoming the gravity of the lifted objects. Among them, the rotating traction component of the hoist needs to be provided with a matching hydraulic parking component, because the hoist will be subjected to great gravity traction during traction, and the existing hoists generally use built-in motors to drive the steel wires to rotate. In order to prevent the motor from losing power due to a fault and causing the steel wire to lose control, the hydraulic rod in the hydraulic parking component drives the brake block to be stuck on the rotating shaft connected to the lifting component, forcing the hoist component to stop; in the prior art, the parking component adopts the brake block to be stuck in the matching way to realize the parking function, so that it cannot realize the emergency braking function. When the steel wire of the hoist pulls the heavy object to a high place, if the motor fails, the steel wire will rapidly drop under the action of the heavy object after losing the upward traction power. At this time, if the brake block in the prior art is forcibly started, it will break, and it is urgently needed to be improved. Summary of the Invention

[0003] The object of the present invention is to provide a hoist with good parking effect to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hoist with good parking effect, comprising a support frame and a power assembly, a lifting column and a steel wire are rotatably installed inside the support frame, a parking box is installed on the right side of the support frame, an air inlet and an air outlet are provided on the surface of the parking box, a brake column is rotatably installed on the inner wall of the parking box through the support column, a brake groove is provided on the top of the brake column, a hydraulic rod is installed on the inner wall of the parking box through a fixing frame, the telescopic end of the hydraulic rod is fixedly connected to a connecting plate, the bottom of the connecting plate is fixedly connected to a brake block, the front and rear ends of the connecting plate are glued with friction blocks, a buffer ring and a No. 2 resistance ring are fixedly sleeved on the middle part and left and right sides of the outer surface of the brake column in sequence, and a synchronizer assembly is installed on the top of the connecting plate through a connecting frame;

[0005] The synchronizer assembly includes a receiving column, and a ring and a telescopic column are installed in sequence from top to bottom inside the receiving column. The bottom of the telescopic column is fixedly connected to a connecting block, and the bottom of the connecting block is fixedly installed with a No. 1 resistance ring. The No. 1 resistance ring is in extrusion contact with the No. 2 resistance ring, and the ring is compressed and arranged inside the receiving column.

[0006] Preferably, the power assembly includes a protective cover, a motor, a number one gear and a number two gear. The number one gear and the number two gear are rotatably installed inside the protective cover. The number one gear is meshed with the number two gear. The number two gear is fixedly connected to the lifting column. A motor is installed on the left side of the protective cover. The output shaft of the motor is fixedly connected to the number one gear. The protective cover is fixedly installed on the left side of the support frame.

[0007] Preferably, there are two air inlets, which are respectively opened on the left and right sides of the top of the parking box. The two air inlets are adapted to the shape and size of the two rings. The outer surface of the support column is fixedly mounted with fan blades, and the air outlet is opened on the right side of the parking box.

[0008] Preferably, the longitudinal cross-section of the bottom of the brake block is triangular, the bottom of the brake block is designed with an arc transition, and the bottom of the brake block is adapted to be clamped in the interior of the brake groove.

[0009] Preferably, the buffer ring is fixedly mounted on the bottom of the outer surface of the brake column by gluing, and the buffer ring is made of a rubber block.

[0010] Preferably, the friction block is made of a rubber block, and the friction block is squeezed and arranged between the two ends of the connecting plate and the inner wall of the parking box.

[0011] Preferably, the shape of the No. 1 resistance ring is a semicircular ring, and the bottom of the inner ring surface of the No. 1 resistance ring is designed to be an arc transition.

[0012] Preferably, when the No. 1 resistance ring and the No. 2 resistance ring are in contact and extrusion, the collar is compressed, and the bottom of the accommodating column is in position-limiting contact with the connecting block.

[0013] Preferably, there are two synchronizer assemblies, which are sequentially distributed on the left and right sides of the hydraulic rod. When the accommodating column is at the highest point, the top of the accommodating column is adapted to be fitted inside the air inlet.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention reduces the rotation speed of the brake column during emergency braking by providing a synchronizer assembly. When the synchronizer assembly block is working, the state faced is that the power assembly fails and cannot bear the traction load of the steel wire and the heavy object, resulting in the lifting column and the brake column being driven to rotate at high speed. By starting the hydraulic rod to drive the No. 1 resistance ring downward, the No. 1 resistance ring is driven and comes into contact with the No. 2 resistance ring. The two generate huge friction resistance when in contact, thereby reducing the rotation speed of the lifting column and the steel wire. As the hydraulic rod drives the accommodating column further downward, the collar is compressed and the pressure is transmitted to the No. 1 resistance ring and the No. 2 resistance ring through the telescopic column and the connecting block, further increasing the friction resistance of the No. 1 resistance ring and the No. 2 resistance ring, further reducing the rotation speed of the brake column, causing the brake block to move downward and successfully get stuck in the inside of the brake groove. The brake column is successfully forced to stop by relying on the brake block to get stuck in the inner wall of the brake groove. At this time, the rotation speed of the brake column is rapidly reduced due to the friction resistance of the No. 1 resistance ring and the No. 2 resistance ring. Therefore, the brake block can get stuck in the inside of the brake groove, realizing the emergency braking function.

[0016] 2. Then, a hydraulic rod is provided to drive the connecting plate and the brake shoe to move downward, so that the brake shoe is stuck in the brake groove. In the parked state, a hydraulic rod provides pressure for the brake shoe. When the brake column slips, its rotation will drive the inner wall of the brake groove to contact the beveled edge of the bottom of the brake shoe. The beveled edge design of the brake shoe prevents it from completely bearing the pressure from the rotation of the brake column. Instead, the beveled edge divides the rotation of the brake column into two components, horizontal and vertical. The horizontal component is offset by the pressure exerted on the inner wall of the parking box by the connecting plate and the friction block, and the vertical separation is offset by the upward pressure exerted by the hydraulic rod, thereby dispersing the force on the brake shoe in the parked state and reducing the static friction wear of the brake shoe.

[0017] 3. Finally, after the power assembly loses power, the steel wire that is restrained and moved by the heavy load drives the lifting column and the brake column to rotate rapidly, and then drives the support column and the fan blades to rotate at high speed. The hydraulic rod drives the connecting frame, the containing column, the collar and the No. 1 resistance ring to move downward and causes the No. 1 resistance ring and the No. 2 resistance ring to rub against each other to generate resistance, preventing the brake column and the lifting column from rotating quickly. The high-speed rotating fan blades drive the air flow inside the parking box and generate negative pressure, so that fresh air from the outside enters the parking box along the air inlet and takes away the heat generated by the high-speed friction of the No. 1 and No. 2 resistance rings, and finally is discharged along the air outlet. This not only effectively cools the No. 1 and No. 2 resistance rings and improves the maintenance effect, but also helps to slow down the rotation speed of the lifting column and the brake column through the resistance generated during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the parking module and synchronizer assembly of the present invention;

[0019] Figure 2Schematic diagram of the separation of the parking module and the synchronizer assembly of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall working appearance of the structure of the present invention;

[0021] Figure 4 It is a schematic front cutaway diagram of the overall structure of the present invention;

[0022] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at A in the middle;

[0023] Figure 6 This is a schematic diagram of the internal structure of the parking box of the present invention;

[0024] Figure 7 This is a schematic diagram of the interior of the parking box of the present invention;

[0025] Figure 8 It is a partial cutaway schematic diagram of the synchronizer assembly of the present invention.

[0026] In the figure: 1. Support frame; 2. Lifting column; 3. Steel wire; 4. Power assembly; 41. Protective cover; 42. Motor; 43. Gear No. 1; 44. Gear No. 2; 5. Parking box; 6. Air inlet; 7. Air outlet; 8. Brake column; 9. Support column; 10. Fan blade; 11. Fixed frame; 12. Hydraulic rod; 13. Connecting plate; 14. Brake block; 15. Friction block; 16. Brake groove; 17. Buffer ring; 18. Connecting frame; 19. Accommodating column; 20. Ring; 21. Telescopic column; 22. Connecting block; 23. Resistance ring No. 1; 24. Resistance ring No. 2. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1 to 8As shown, the embodiment of the present invention provides a hoist with good parking effect, including a support frame 1 and a power assembly 4, a lifting column 2 and a steel wire 3 are rotatably installed inside the support frame 1, a parking box 5 is installed on the right side of the support frame 1, and an air inlet 6 and an air outlet 7 are provided on the surface of the parking box 5, a brake column 8 is rotatably installed on the inner wall of the parking box 5 through a support column 9, a brake groove 16 is provided on the top of the brake column 8, a hydraulic rod 12 is installed on the inner wall of the parking box 5 through a fixing frame 11, and the telescopic end of the hydraulic rod 12 is fixedly connected to a connecting plate 13, a brake block 14 is fixedly connected to the bottom of the connecting plate 13, and friction blocks 15 are glued to the front and rear ends of the connecting plate 13, a buffer ring 17 and a No. 2 resistance ring 24 are fixedly sleeved on the middle part and left and right sides of the outer surface of the brake column 8 in sequence, and a synchronizer assembly is installed on the top of the connecting plate 13 through a connecting frame 18;

[0029] The synchronizer assembly includes a receiving column 19, inside which a collar 20 and a telescopic column 21 are installed in order from top to bottom. The bottom of the telescopic column 21 is fixedly connected to a connecting block 22, and the bottom of the connecting block 22 is fixedly installed with a No. 1 resistance ring 23. The No. 1 resistance ring 23 is in press contact with the No. 2 resistance ring 24, and the collar 20 is compressed and set inside the receiving column 19;

[0030] The device includes two modules: a parking module and a synchronizer module, i.e., a synchronizer assembly;

[0031] When the parking module is working, the hydraulic rod 12 mainly provides hydraulic power to drive the connecting plate 13 and the brake block 14 to move downward, so that the brake block 14 is adapted to be clamped in the brake groove 16. Figure 7 As shown, the brake shoe 14 applies downward pressure to the inside of the brake groove 16 under the action of the hydraulic rod 12, so that the two oblique sides at the bottom thereof are squeezed and contacted with the inner wall of the brake groove 16. In the parked state, the hydraulic rod 12 provides pressure for the brake shoe 14. When the brake column 8 slides, its rotation drives the inner wall of the brake groove 16 to contact the oblique sides at the bottom of the brake shoe 14. The oblique side design of the brake shoe 14 prevents it from completely bearing the pressure from the rotation of the brake column 8. Instead, it divides the rotation of the brake column 8 into two components, horizontal and vertical, through the oblique side. The horizontal component is offset by the pressure exerted on the inner wall of the parking box 5 by the connecting plate 13 and the friction block 15, and the vertical separation is offset by the upward pressure exerted by the hydraulic rod 12, thereby dispersing the force on the brake shoe 14 in the parked state and reducing the static friction wear of the brake shoe 14.

[0032] When the synchronizer module is working, the state it faces is that the power component 4 fails and cannot bear the traction load of the steel wire 3 and the heavy object, causing the lifting column 2 and the brake column 8 to be driven and rotated at high speed. At this time, the hydraulic rod 12 can be started and the accommodating column 19 can be driven downward through the connecting plate 13 and the connecting frame 18. Before the brake block 14 moves down to the inside of the brake groove 16, the No. 1 resistance ring 23 is driven and begins to contact the No. 2 resistance ring 24. The two generate huge friction resistance when in contact, thereby reducing the rotation speed of the lifting column 2 and the steel wire 3. As the hydraulic rod 12 drives the accommodating column 19 to move further downward, the collar 20 is compressed and the pressure is transmitted to the No. 1 resistance ring through the telescopic column 21 and the connecting block 22. The ring 23 and the second resistance ring 24 further increase the friction resistance of the No. 1 resistance ring 23 and the No. 2 resistance ring 24, further reducing the rotation speed of the brake column 8, and then the brake block 14 first contacts and squeezes the buffer ring 17 for buffering. At the same time, the brake block 14 and the buffer ring 17 are squeezed to produce friction resistance, reducing the rotation speed of the brake column 8. Finally, the brake block 14 is successfully stuck into the inside of the brake groove 16, and the brake column 8 is successfully forced to stop by relying on the brake block 14 stuck on the inner wall of the brake groove 16. At this time, the rotation speed of the brake column 8 is rapidly reduced under the reduction of the friction resistance of the No. 1 resistance ring 23 and the No. 2 resistance ring 24. Therefore, the brake block 14 can be stuck into the inside of the brake groove 16 to realize the emergency braking function.

[0033] The power assembly 4 includes a protective cover 41, a motor 42, a first gear 43, and a second gear 44. The first gear 43 and the second gear 44 are rotatably installed inside the protective cover 41. The first gear 43 is meshed with the second gear 44. The second gear 44 is fixedly connected to the lifting column 2. The motor 42 is installed on the left side of the protective cover 41. The output shaft of the motor 42 is fixedly connected to the first gear 43. The protective cover 41 is fixedly installed on the left side of the support frame 1.

[0034] The load of the power assembly 4 provides traction power for the device. By providing a No. 1 gear 43 and a No. 2 gear 44 to reduce speed and increase torque, the traction torque on the steel wire 3 is increased, making the normal operation of the device more stable.

[0035] There are two air inlets 6, one on each side of the top of the parking box 5. The two air inlets 6 match the shape and size of the two collars 20. The fan blades 10 are fixedly mounted on the outer surface of the support column 9. The air outlet 7 is located on the right side of the parking box 5.

[0036] After the power assembly 4 loses power, the steel wire 3 that is restrained and moved by the heavy load drives the lifting column 2 and the brake column 8 to rotate rapidly, and then drives the support column 9 and the fan blade 10 to rotate at high speed. The hydraulic rod 12 drives the connecting frame 18, the accommodating column 19, the collar 20 and the No. 1 resistance ring 23 to move downward and causes the No. 1 resistance ring 23 and the No. 2 resistance ring 24 to rub against each other to generate resistance, preventing the brake column 8 and the lifting column 2 from rotating quickly. The high-speed rotating fan blade 10 drives the air flow inside the parking box 5 and generates negative pressure, so that fresh air from the outside enters the parking box 5 along the air inlet 6 and takes away the heat generated by the high-speed friction of the No. 1 resistance ring 23 and the No. 2 resistance ring 24, and finally is discharged along the air outlet 7, which not only effectively cools the No. 1 resistance ring 23 and the No. 2 resistance ring 24 and improves the maintenance effect, but also helps to slow down the rotation speed of the lifting column 2 and the brake column 8 through the resistance generated during rotation.

[0037] The longitudinal cross-section of the bottom of the brake block 14 is triangular, and the bottom of the brake block 14 is designed with an arc transition. The bottom of the brake block 14 is adapted to be clamped in the interior of the brake groove 16.

[0038] The inverted triangle design of the brake block 14 can effectively engage and limit the rotation of the brake column 8 in two directions by squeezing contact with the inner wall of the brake groove 16. The arc transition design at the bottom of the brake block 14 can prevent the brake column 8 from rotating at high speed under emergency braking, causing the inside of the brake groove 16 to contact the bottom end of the brake block 14 and cause damage.

[0039] The buffer ring 17 is fixedly mounted on the bottom of the outer surface of the brake column 8 by gluing, and the buffer ring 17 is made of a rubber block;

[0040] The buffer ring 17 is made of a rubber block. In the emergency braking state, the brake column 8 will drive the buffer ring 17 to rotate at high speed. When the brake block 14 moves downward, it can first contact and squeeze the buffer ring 17 to generate a buffer.

[0041] The friction block 15 is made of a rubber block and is squeezed and arranged between the two ends of the connecting plate 13 and the inner wall of the parking box 5;

[0042] The friction block 15 is fixedly connected to both ends of the connecting plate 13, and the friction block 15 is squeezed and set on the inner wall of the parking box 5, so that when the connecting plate 13 is placed horizontally, the horizontal separation of the brake block 14 from the brake column 8 can be transferred to the friction block 15, and offset by vertical extrusion.

[0043] The first resistance ring 23 is in the shape of a semicircular ring, and the bottom of the inner ring surface of the first resistance ring 23 is designed as an arc transition;

[0044] The semicircular design of the No. 1 resistance ring 23 allows its inner side to match the outer surface of the No. 2 resistance ring 24 , generating friction resistance during the downward movement, thereby cooperating to complete emergency braking.

[0045] When the No. 1 resistance ring 23 and the No. 2 resistance ring 24 come into contact and squeeze, the collar 20 is compressed, and the bottom of the accommodating column 19 comes into limited contact with the connecting block 22;

[0046] When the No. 1 resistance ring 23 and the No. 2 resistance ring 24 come into contact, the accommodating column 19 drives the sleeve ring 20, the telescopic column 21, the connecting block 22 and the No. 1 resistance ring 23 to move downward and generate friction resistance with the No. 2 resistance ring 24. Then, as the accommodating column 19 moves downward, the sleeve ring 20 will continue to be compressed, and the pressure will continue to be transmitted between the No. 1 resistance ring 23 and the No. 2 resistance ring 24.

[0047] There are two synchronizer assemblies, which are sequentially distributed on the left and right sides of the hydraulic rod 12. When the accommodating column 19 is at its highest point, its top is adapted to fit inside the air inlet 6.

[0048] The synchronizer assembly mainly uses the friction resistance generated between the No. 1 resistance ring 23 and the No. 2 resistance ring 24 to reduce the rotation speed of the brake column 8, thereby reducing the impact force on the brake block 14 that moves downward and engages with the brake groove 16, and reducing the pressure wear of the brake block 14.

[0049] Working principle and usage process:

[0050] First, the steel wire 3 is wound around the outer surface of the lifting column 2 and connected to the hook to fix the heavy object. After confirming the load, the support frame 1 is fully stressed as a whole. The lifting column 2 and the brake column 8 tend to rotate. The brake block 14 is stuck in the brake groove 16. The brake column 8 is clamped and limited by the fixing frame 11, the hydraulic rod 12 and the connecting plate 13 to realize the parking function of the device. The power assembly 4 is started and a rotational torque is generated on the lifting column 2. At this time, the hydraulic rod 12 can be controlled to drive the connecting plate 13 and the brake block 14 to move upward, so that the brake block 14 is disengaged from the inside of the brake groove 16. The accommodating column 19 moves upward and contacts the compression of the collar 20. Then the telescopic column 21, the connecting block 22 and the No. 1 resistance ring 23 move upward and contact the clamping limit of the brake column 8.

[0051] Then, the device can work normally, start the motor 42 and amplify the torque through the No. 1 gear 43 and the No. 2 gear 44, drive the lifting column 2 to rotate, and pull the steel wire 3 when it rotates. When the motor 42 suddenly fails and stops running, the steel wire 3 is driven to move downward rapidly under the gravity of the weight and drives the lifting column 2 and the brake column 8 to rotate at high speed. At this time, the synchronizer assembly is started, and the hydraulic rod 12 drives the connecting plate 13, the brake block 14 and the accommodating column 19 to move downward, so that the No. 1 resistance ring 23 is driven to rub against the No. 2 resistance ring 24 and Resistance is generated. As the accommodating column 19 continues to move downward (note: at this time the brake block 14 has not yet entered the interior of the brake groove 16), the collar 20 is continuously compressed, and the pressure of the No. 1 resistance ring 23 on the No. 2 resistance ring 24 is gradually increased. The rotation speed of the lifting column 2 and the brake column 8 is reduced by the gradually increasing friction resistance between the No. 1 resistance ring 23 and the No. 2 resistance ring 24. As the brake block 14 moves downward and engages with the edge of the brake groove 16, the lifting column 2 and the brake column 8 are finally quickly stopped, and the brake block 14 is completely engaged with the interior of the brake groove 16.

[0052] At the same time, when the lifting column 2 and the brake column 8 are driven by the downwardly moved steel wire 3 to rotate at high speed, the fan blades 10 are also driven to rotate at high speed through the support column 9, so that part of the mechanical energy generated by the rotation of the lifting column 2 and the brake column 8 is converted into mechanical energy when the fan blades 10 rotate. On the one hand, the resistance generated by the fan blades 10 during rotation helps to slow down the rotation speed of the lifting column 2 and the brake column 8. On the other hand, the rotating fan blades 10 can also generate negative pressure, which allows fresh air from the outside to enter the interior of the parking box 5 through the air inlet 6, taking away the heat generated by the friction between the No. 1 resistance ring 23 and the No. 2 resistance ring 24, and discharge it through the air outlet 7;

[0053] Finally, if Figure 4 、 Figure 5 and Figure 7 As shown, after the parking function is activated, the brake block 14 is clamped downward in the brake groove 16, and the brake column 8 still has a tendency to rotate around its own axis, so that the bottom bevel of the brake block 14 is subjected to pressure from the inner wall of the brake groove 16. The pressure is not perpendicular to the bottom bevel of the brake block 14, and a part of it acts in the front and rear horizontal directions of the brake block 14. At this time, the connecting plate 13 drives the friction block 15 to offset this component of force, and the other part pushes the brake block 14 upward. At this time, the downward pressure generated by the hydraulic rod 12 and the friction force generated by the squeezing of the friction block 15 and the inside of the parking box 5 offset this part of the force, and the static friction generated by the downward moving No. 1 resistance ring 23 and the No. 2 resistance ring 24 also generates rotational resistance to the brake column 8, thereby dispersing the force on the brake block 14 in the parking state and reducing the static friction wear of the brake block 14.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hoist with good parking effect, comprising a support frame (1) and a power assembly (4), wherein a lifting column (2) and a steel wire (3) are rotatably mounted inside the support frame (1), characterized in that: A parking box (5) is installed on the right side of the support frame (1), and an air inlet (6) and an air outlet (7) are provided on the surface of the parking box (5). A brake column (8) is rotatably installed on the inner wall of the parking box (5) through a support column (9), and a brake groove (16) is provided on the top of the brake column (8). A hydraulic rod (12) is installed on the inner wall of the parking box (5) through a fixing frame (11), and the telescopic end of the hydraulic rod (12) is fixedly connected to a connecting plate (13), and a brake block (14) is fixedly connected to the bottom of the connecting plate (13). Friction blocks (15) are glued to the front and rear ends of the connecting plate (13), and a buffer ring (17) and a No. 2 resistance ring (24) are fixedly sleeved on the middle part and left and right sides of the outer surface of the brake column (8), and a synchronizer assembly is installed on the top of the connecting plate (13) through a connecting frame (18); The synchronizer assembly includes a receiving column (19), wherein a collar (20) and a telescopic column (21) are sequentially installed inside the receiving column (19) from top to bottom, a connecting block (22) is fixedly connected to the bottom of the telescopic column (21), a first resistance ring (23) is fixedly installed on the bottom of the connecting block (22), the first resistance ring (23) is in compression contact with a second resistance ring (24), and the collar (20) is compressed and arranged inside the receiving column (19); The power assembly (4) includes a protective cover (41), a motor (42), a first gear (43) and a second gear (44), the protective cover (41) is internally rotatably mounted with the first gear (43) and the second gear (44), the first gear (43) is meshed with the second gear (44), the second gear (44) is fixedly connected to the lifting column (2), the motor (42) is mounted on the left side of the protective cover (41), the output shaft of the motor (42) is fixedly connected to the first gear (43), and the protective cover (41) is fixedly mounted on the left side of the support frame (1); When the No. 1 resistance ring (23) and the No. 2 resistance ring (24) are in contact and extrusion, the collar (20) is compressed, and the bottom of the accommodating column (19) is in position-limiting contact with the connecting block (22).

2. The elevator with good parking effect according to claim 1, characterized in that: The number of the air inlets (6) is two and they are respectively opened on the left and right sides of the top of the parking box (5). The two air inlets (6) are adapted to the shape and size of the two collars (20). The outer surface of the support column (9) is fixedly mounted with a fan blade (10). The air outlet (7) is opened on the right side of the parking box (5).

3. The elevator with good parking effect according to claim 1, characterized in that: The longitudinal cross-section of the bottom of the brake block (14) is triangular, the bottom of the brake block (14) is designed in an arc transition, and the bottom of the brake block (14) is adapted to be clamped inside the brake groove (16).

4. The elevator with good parking effect according to claim 1, characterized in that: The buffer ring (17) is fixedly mounted on the bottom of the outer surface of the brake column (8) by gluing, and the buffer ring (17) is made of a rubber block.

5. The elevator with good parking effect according to claim 1, characterized in that: The friction block (15) is made of a rubber block, and the friction block (15) is squeezed and arranged between the two ends of the connecting plate (13) and the inner wall of the parking box (5).

6. The elevator with good parking effect according to claim 1, characterized in that: The first resistance ring (23) is in the shape of a semicircular ring, and the bottom of the inner ring surface of the first resistance ring (23) is designed in an arc transition.

7. The elevator with good parking effect according to claim 1, characterized in that: There are two synchronizer assemblies, which are sequentially distributed on the left and right sides of the hydraulic rod (12). When the accommodating column (19) is at the highest point, its top is adapted to be fitted inside the air inlet (6).

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