Automatic chain tensioning mechanism for car washers

Abstract

The present invention discloses an automatic tensioning mechanism for a car washer chain. A long hole is provided on the side of the car washer track. The middle part of the connecting shaft slides in the long hole. One end of the connecting shaft is connected to the bearing seat, and the other end is connected to the gear set. The mounting sleeve is fixed to the side of the car washer track. One end of the driving shaft abuts against the bearing seat, and the other end of the driving shaft passes through the mounting sleeve. The compression spring is installed in the mounting sleeve, and the two ends of the compression spring abut against the driving shaft and the end of the mounting sleeve away from the bearing seat. The present invention can realize the tensioning of the car washer chain, has a simple and practical structure, and can realize automatic tensioning, which can prevent the car from running in the car washer.

Description

Technical Field

[0001] The invention belongs to the technical field of car washers, and in particular relates to an automatic chain tensioning mechanism for a car washer. Background Art

[0002] At present, as more and more cars have entered thousands of households, the demand for quick car cleaning among drivers is increasing day by day. There are more and more automatic car wash methods in society. This car wash method is generally cheap, convenient and fast, so a large number of drivers will use this car wash method.

[0003] In an automatic car wash, the car wash track is indispensable. During the car wash process, it can drive the car to run automatically, so that every time the car arrives at a location, there can be a fixed car equipment for washing, and the washing of the car is effectively guaranteed. However, in the current car wash track, it is common to use a gear set to drive the car wash chain to control the speed and stop of the car. However, it is well known that the chain will become loose after being used for a period of time, which makes the control of the chain not accurate, and even unable to run in severe cases. This is a problem that cannot be solved at present. Furthermore, some car owners sit in the car when washing the car, and may start the car intentionally or unintentionally when washing the car. At this time, the car will scratch and collide with the car wash, causing damage to both the car and the car wash, which is also a problem that needs to be solved at present. Summary of the invention

[0004] The object of the present invention is to provide an automatic chain tensioning mechanism for a car washer, so as to solve at least one of the above problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides an automatic tensioning mechanism for a car washer chain, which is installed on the side of a car washer track and comprises a connecting shaft, a bearing seat, a driving shaft, a compression spring and a mounting sleeve. The side of the car washer track is provided with a long hole extending along the length direction of the car washer track, and the middle part of the connecting shaft slides in the long hole in a matching manner, one end of the connecting shaft is connected to the bearing seat, and the other end of the connecting shaft is connected to a gear set that drives the car washer chain to rotate; the mounting sleeve is fixed to the side of the car washer track, one end of the driving shaft abuts against the bearing seat, and the other end of the driving shaft passes through the mounting sleeve; the compression spring is installed in the mounting sleeve, and the two ends of the compression spring respectively abut against the inner walls of the driving shaft and the mounting sleeve at one end away from the bearing seat.

[0007] As a preferred technical solution in the present invention, an annular limit plate located in the mounting sleeve is provided in the middle part of the driving shaft, a compression spring is wrapped around the outside of the driving shaft, and two ends of the compression spring are respectively abutted against the annular limit plate and the inner wall of the mounting sleeve away from the bearing seat.

[0008] As a preferred technical solution in the present invention, the mounting sleeve includes an end cover and a sleeve body with openings at both ends, the end cover is threadedly connected to one end of the sleeve body away from the bearing seat, and one end of the compression spring abuts against the end cover.

[0009] As a preferred technical solution in the present invention, a mounting plate is provided on the side of the car washer track, a positioning plate is provided outside the sleeve body, and the positioning plate and the mounting plate are detachably connected by bolts.

[0010] As a preferred technical solution in the present invention, a limiting seat is arranged on the positioning plate, and the driving shaft passes through the limiting seat; a plurality of limiting tooth grooves are evenly arranged on the driving shaft, and an installation groove is arranged on the limiting seat, and a one-way limiting tooth is rotatably connected in the installation groove to prevent the driving shaft from moving in the direction of the end cover, and the one-way limiting tooth is meshed with the limiting tooth groove.

[0011] As a preferred technical solution in the present invention, a rotating shaft is arranged in the installation groove, and the one-way limiting tooth is installed on the rotating shaft; the side of the installation groove away from the bearing seat is the first limiting surface, and the side of the one-way limiting tooth close to the first limiting surface is the second limiting surface, the lower part of the second limiting surface is abutted against the lower part of the first limiting surface, and the upper part of the second limiting surface and the upper part of the first limiting surface leave a gap for the one-way limiting tooth to detach from the limiting tooth groove.

[0012] As a preferred technical solution in the present invention, the upper and lower ends of the bearing seat are provided with slide rails, the two slide rails are parallel to each other and are installed on the sides of the car washer track, and the bearing seat is matched and slidably connected between the two slide rails.

[0013] Beneficial effect: When the car washer chain is loose, the pushing shaft of the automatic tensioning mechanism of the car washer chain is subjected to the elastic force of the compression spring and moves toward the bearing seat. The bearing seat slides toward the end of the car washer track under the push of the pushing shaft. The bearing seat drives a gear set to move toward its end through the connecting shaft, thereby increasing the distance between the two gear sets until the car washer chain is tensioned again. In this way, during the operation of the car washer track, the elastic force of the compression spring can always be used to give the pushing shaft an elastic force. When the car washer chain is loose, the pushing shaft can be used to push the bearing seat to move, thereby achieving the tensioning of the car washer chain. The structure is simple and practical, and can achieve automatic tensioning, saving manpower and material resources, and will not affect the use of the car washer chain. It is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The schematic diagram of the track structure of a car washer equipped with an automatic tensioning mechanism for the car washer chain is shown in FIG.

[0015] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0016] Figure 3 This is a schematic diagram of the partial structure of the automatic chain tensioning mechanism of the car washer on the car washer track. DETAILED DESCRIPTION

[0017] Embodiment 1:

[0018] like Figure 1-3 As shown, the present embodiment provides an automatic tensioning mechanism for a car washer chain, which is installed on the side of a car washer track 1, and includes a connecting shaft 2, a bearing seat 3, a driving shaft 4, a compression spring 5 and a mounting sleeve 6. The side of the car washer track 1 is provided with an elongated hole 101 extending along the length direction of the car washer track 1. The middle part of the connecting shaft 2 slides in the elongated hole 101 in a matching manner. One end of the connecting shaft 2 is connected to the bearing seat 3, and the other end of the connecting shaft 2 is connected to a gear set 103 that drives the car washer chain 102 to rotate. When the connecting shaft 2 is connected to the bearing seat 3, it is connected to the inner ring of the bearing seat 3. In this way, when the gear set 103 rotates, although the connecting shaft 2 is also rotating, it will not drive the car washer chain 102 to rotate. The entire bearing seat 3 rotates, and the stability of the bearing seat 3 can still be maintained. In practice, a gear set 103 is generally set at each end of the car washer track 1, one gear set 103 is connected to the driving motor, and the other gear set 103 is used to connect to the connecting shaft 2. The gear set 103 connected to the connecting shaft 2 is slidably installed in the car washer track 1 to ensure that when the gear set 103 is used to tighten the car washer chain 102, the gear set 103 can still ensure relative stability. The sliding of the gear set 103 can utilize the roller connecting the two gears, so that one end of the roller is limited by the connecting shaft 2, and the other end is slidably connected to a long strip hole like the connecting shaft 2. It is simple and practical.

[0019] The mounting sleeve 6 is fixed to the side of the car washer track 1, one end of the driving shaft 4 is in contact with the bearing seat 3, and the other end of the driving shaft 4 passes through the mounting sleeve 6; the compression spring 5 is installed in the mounting sleeve 6, and the two ends of the compression spring 205 are respectively in contact with the driving shaft 4 and the inner wall of the mounting sleeve 6 away from the bearing seat 3. When the car washer chain 102 is loose, the driving shaft 4 is subjected to the elastic force of the compression spring 5 and will move toward the bearing seat 3. The bearing seat 3 slides toward the end of the car washer track 1 under the push of the driving shaft 4, thereby increasing the distance between the two gear sets 103 until the car washer chain 102 is tensioned again.

[0020] When the car washer chain 102 is loose, the driving shaft 4 is subjected to the elastic force of the compression spring 5 and moves toward the bearing seat 3. The bearing seat 3 slides toward the end of the car washer track 1 under the push of the driving shaft 4. The bearing seat 3 drives a gear set 103 to move toward its end through the connecting shaft 2, thereby increasing the distance between the two gear sets 103 until the car washer chain 102 is tensioned again. In this way, during the operation of the car washer track 1, the elastic force of the compression spring 5 can always be used to give the driving shaft 4 an elastic force. When the car washer chain 102 is loose, the driving shaft 4 can be used to push the bearing seat 3 to move, thereby realizing the tensioning of the car washer chain 102. The structure is simple and practical, and can realize automatic tensioning, saving manpower and material resources, and will not affect the use of the car washer chain 102. It is worthy of promotion.

[0021] As a preferred implementation scheme in this embodiment, it needs to be further explained that an annular limit plate 401 located in the mounting sleeve 6 is provided in the middle part of the driving shaft 4, and the compression spring 5 is wound around the outside of the driving shaft 4, and the two ends of the compression spring 5 are respectively abutted against the annular limit plate 401 and the inner wall of the mounting sleeve 6 away from the bearing seat 3, which can enhance the stability of the compression spring 5 and make the elastic thrust of the compression spring 5 given to the driving shaft 4 more stable, so that the compression spring 5 has enough space in the mounting sleeve 6, and when it is shorter in the mounting sleeve 6, it can also maintain a normal compression range, thereby ensuring the service life of the compression spring 5.

[0022] As a preferred implementation scheme in this embodiment, it needs to be further explained that the mounting sleeve 6 includes an end cover 602 and a sleeve body 601 with openings at both ends. The driving shaft 4 can be inserted from one end of the sleeve body 601 close to the end cover 602 and exit from the end of the sleeve body 601 away from the end cover 602, which is convenient for loading and unloading. The end cover 602 is threadedly connected to the end of the sleeve body 601 away from the bearing seat 3, which is also convenient for loading and unloading, and is convenient for loading and unloading, and is convenient for loading and unloading the driving shaft 4 and the compression spring 5. One end of the compression spring 5 abuts against the end cover 602 to ensure the elastic thrust on the driving shaft 4. At the same time, the elastic force of the compression spring 5 can also be adjusted by using the screw-in depth of the end cover 602 on the sleeve body 601, which is more flexible.

[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that a mounting plate 104 is provided on the side of the car washer track 1, and a positioning plate 603 is provided outside the sleeve body 601, and the positioning plate 603 is detachably connected to the mounting plate 104 by bolts, so that the sleeve body 601 is also convenient for loading and unloading, and different sleeve bodies 601 and the driving shaft 4 and compression spring 5 inside thereof can be replaced according to actual conditions. It needs to be explained in this implementation scheme that, preferably, a groove is provided on the mounting plate 104, and the sleeve body 601 is provided in the groove, which can facilitate more sufficient contact between the positioning plate 603 and the mounting plate 104, thereby enhancing the stability when the positioning plate 603 is connected to the mounting plate 104, reducing the space area occupied by the two after assembly, and making the whole more compact.

[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that a limiting seat 7 is arranged on the positioning plate 603, and the driving shaft 4 passes through the limiting seat 7; a plurality of limiting tooth grooves are evenly arranged on the driving shaft 4, and an installation groove is arranged on the limiting seat 7, in which a one-way limiting tooth 8 is rotatably connected for preventing the driving shaft 4 from moving toward the end cover 602, and the one-way limiting tooth 8 is meshed with the limiting tooth groove, that is, when the driving shaft 4 is forced to move toward the end cover 602, the one-way limiting tooth 8 is meshed with the limiting tooth groove, which will prevent the driving shaft 4 from moving, and when the driving shaft 4 moves toward the bearing seat, the one-way limiting tooth 8 is disengaged from the limiting tooth groove, thereby releasing the restriction on the driving shaft 4, so that the driving shaft 4 always moves in the direction in which the car washer chain 102 can be tensioned, thereby making the driving shaft 4 more effective. Among them, it is further explained in detail that a rotating shaft 701 is arranged in the installation groove, and the one-way limit tooth 8 is installed on the rotating shaft 701 and can swing relative to the rotating shaft 701; the side of the installation groove away from the bearing seat 3 is a first limit surface, and the side of the one-way limit tooth 8 close to the first limit surface is a second limit surface, and the lower part of the second limit surface is in contact with the lower part of the first limit surface, and the upper part of the second limit surface and the upper part of the first limit surface leave a gap for the one-way limit tooth 8 to detach from the limit tooth groove, so that the one-way limit tooth 8 can only rotate in one direction, and the rotation is also limited, which can ensure that under the restriction of the one-way limit tooth 8, the pushing shaft 4 can be stably moved toward the bearing seat.

[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the upper and lower ends of the bearing seat 3 are both provided with slide rails 9, the two slide rails 9 are parallel to each other and are both installed on the side of the car washer track 1, and the bearing seat 3 is matched and slidably connected between the two slide rails 9, so that the bearing seat 3 can maintain a stable state, and the upper and lower ends of the bearing seat 3 can be fitted with the two slide rails 9, or slide grooves can be provided at the upper and lower ends of the bearing seat 3, and the two slide grooves realize a sliding fit relationship with the two slide rails 9 to ensure the stability of the bearing seat 3.

[0026] It should be noted that the automatic tensioning mechanism of the car washer chain is installed on the car washer track. When the car washer track is combined, the car washer track also includes a directional transport track as the car washer track 1, and a transport roller driven by the car washer chain 102 is arranged in the directional transport track; in simple terms, it is an existing directional transport track, and the automatic tensioning mechanism of the car washer chain in the first embodiment is installed. It should be further noted that each transport roller is rotatably connected to a roller 105, and the roller 105 can rotate freely, so that the car can be restricted to prevent the owner from starting the car on the car when washing the car. The arrangement of the roller 105 makes it impossible for the owner to start the car on the directional transport track even if the owner starts the car. Instead, the car will rotate due to the existence of the roller 105, preventing the car from running in the car washer and causing damage to the car and the car washer. It should be noted that in the present embodiment, the two car washer tracks 1 on which the car runs can both use the above-mentioned directional transport track with the roller 105.

[0027] The car washer track formed by the automatic chain tensioning mechanism of the car washer can effectively restrict the car and prevent the car owner from starting the car on the car during washing. The arrangement of the roller 105 ensures that even if the car owner starts the car, it will not run on the car washer track. Instead, the car will rotate due to the existence of the roller 105, preventing the car from running in the car washer and causing damage to the car and the car washer.

[0028] It needs to be further explained that if Figure 3 As shown, the car washer track also includes a restricted track 10, on which a plurality of transport rollers are evenly distributed, and each transport roller is rotatably connected to a roller 105, that is, of the two car washer tracks 1 on which the car travels, one is the directional transport track in Example 1, and the other is the restricted track 10 in this embodiment. The existing track in this embodiment has a simple structure and low cost, but can prevent the car from starting during the car wash, just like the directional transport track in Example 1. At this time, only one directional transport track is needed to drive the car to the designated location.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic chain tensioning mechanism for a car washer, mounted on the side of a car washer track (1), characterized in that: The invention comprises a connecting shaft (2), a bearing seat (3), a driving shaft (4), a compression spring (5) and a mounting sleeve (6); a side surface of the car washer track (1) is provided with a long hole (101) extending along the length direction of the car washer track (1); the middle part of the connecting shaft (2) slides in the long hole (101) in a matching manner; one end of the connecting shaft (2) is connected to the bearing seat (3); the other end of the connecting shaft (2) is connected to a gear set (103) that drives the car washer chain (102) to rotate; the mounting sleeve (6) is fixed to the side surface of the car washer track (1); one end of the driving shaft (4) is connected to the bearing seat (3); and the other end of the connecting shaft (2) is connected to a gear set (103) that drives the car washer chain (102) to rotate. ) are abutted against each other, and the other end of the driving shaft (4) passes through the installation sleeve (6); the compression spring (5) is installed in the installation sleeve (6), and the two ends of the compression spring (5) are respectively abutted against the inner wall of the driving shaft (4) and the installation sleeve (6) at one end away from the bearing seat (3); the installation sleeve (6) includes an end cover (602) and a sleeve body (601) with openings at both ends, the end cover (602) is threadedly connected to the end of the sleeve body (601) away from the bearing seat (3), and one end of the compression spring (5) is abutted against the end cover (602); a mounting plate ( 104), a positioning plate (603) is arranged outside the sleeve body (601), and the positioning plate (603) and the mounting plate (104) are detachably connected by bolts; a limiting seat (7) is arranged on the positioning plate (603), and the driving shaft (4) passes through the limiting seat (7); a plurality of limiting tooth grooves are evenly arranged on the driving shaft (4), and a mounting groove is arranged on the limiting seat (7), and a one-way limiting tooth (8) is rotatably connected in the mounting groove to prevent the driving shaft (4) from moving toward the end cover (602), and the one-way limiting tooth (8) is meshed with the limiting tooth groove; a rotating shaft (701) is arranged in the mounting groove, and the one-way limiting tooth (8) is meshed with the limiting tooth groove. The limiting tooth (8) is installed on the rotating shaft (701); the side of the installation groove away from the bearing seat (3) is the first limiting surface, and the side of the one-way limiting tooth (8) close to the first limiting surface is the second limiting surface, the lower part of the second limiting surface is in contact with the lower part of the first limiting surface, and the upper part of the second limiting surface and the upper part of the first limiting surface leave a gap for the one-way limiting tooth (8) to escape from the limiting tooth groove; the upper and lower ends of the bearing seat (3) are both provided with slide rails (9), the two slide rails (9) are parallel to each other and are both installed on the side of the car washer track (1), and the bearing seat (3) is matched and slidably connected between the two slide rails (9).

2. The automatic chain tensioning mechanism of a car washer according to claim 1, characterized in that: An annular limiting plate (401) located inside the mounting sleeve (6) is provided in the middle of the driving shaft (4), a compression spring (5) is wound around the outside of the driving shaft (4), and two ends of the compression spring (5) are respectively in contact with the annular limiting plate (401) and the inner wall of the mounting sleeve (6) at one end away from the bearing seat (3).

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