Novel self-locking trolley wheel

Abstract

The utility model relates to the technical field of trolley wheels, in particular to a novel self-locking trolley wheel which comprises a wheel carrier body, one side of the inner wall of the wheel carrier body is connected with a wheel in a rotating mode, and one side of the wheel carrier body is provided with a speed reduction locking mechanism. The speed reduction locking mechanism comprises a telescopic rotating assembly, a locking disc, an elastic pressing positioning assembly and an identification prompting assembly, the locking disc is installed on the telescopic rotating assembly, the telescopic rotating assembly is used for adjusting the horizontal position of the locking disc, and the elastic pressing positioning assembly is used for decelerating and locking wheels. The identification prompting assembly is used for prompting personnel whether the elastic pressing positioning assembly locks the wheel or not. The telescopic rotating assembly comprises an electric telescopic rod installed on one side of the outer wall of the wheel carrier body. The self-locking device is simple in structure and convenient to operate, hard collision between the locking component and the wheel body during self-locking is avoided, the practicability of the device is further improved, and the self-locking effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley wheels, in particular to a novel self-locking trolley wheel. Background Art

[0002] A handcart is a transport vehicle that can be pushed or pulled by humans, and it is the ancestor of all vehicles. Although handcart material handling technology continues to advance, handcarts remain an indispensable transport tool. Handcarts are widely used in production and daily life because they are low-cost, easy to maintain, convenient to operate, and lightweight. They can operate in places where motor vehicles are inconvenient and are very convenient for transporting light items over short distances. Existing technology uses speed sensors and tilt sensors to detect the vehicle's state and automatically brakes through a controller. However, these sensors cannot effectively handle various emergencies and are not flexible enough, causing inconvenience to personnel when pushing the cart.

[0003] In order to solve the above technical problems, the Chinese patent with the publication number CN217835727U in the prior art discloses a new self-locking trolley wheel, which includes a wheel body, a bearing, a mounting plate and a support plate, and also includes a self-locking mechanism.

[0004] Although the above-mentioned existing technical solution can effectively self-lock the wheel body, when self-locking is required when moving downhill, the rolling limit groove of the wheel rotates accordingly, and it is impossible to ensure that the limit groove is completely aligned with the position of the limit post while rolling. Once the electric push rod is started to drive the limit post close to the wheel, it is very easy to cause the limit post and the outer wall of the wheel to conflict with each other, causing damage to the components, and then affecting the subsequent self-locking effect. Utility Model Content

[0005] The purpose of the present utility model is to provide a new type of self-locking hand wheel to solve the problem raised in the above-mentioned background technology that when self-locking is required for downhill pushing, the limit groove rotates as the wheel rolls, and it is impossible to ensure that the limit groove is completely aligned with the position of the limit post while rolling. Once the electric push rod is started to drive the limit post close to the wheel, it is very easy to cause the limit post and the outer wall of the wheel to conflict with each other, causing damage to the components, and then affecting the subsequent self-locking effect.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A new type of self-locking trolley wheel includes a wheel frame body, one side of the inner wall of the wheel frame body is rotatably connected to the wheel, and a deceleration locking mechanism is installed on one side of the wheel frame body. The deceleration locking mechanism includes a telescopic rotating component, a locking disk, a spring-pressed positioning component and an identification prompt component. The locking disk is installed on the telescopic rotating component, the telescopic rotating component is used to adjust the horizontal position of the locking disk, the spring-pressed positioning component is used to decelerate and lock the wheel, and the identification prompt component is used to prompt personnel whether the spring-pressed positioning component has locked the wheel.

[0008] As a preferred solution of the present invention, the telescopic rotation assembly includes an electric telescopic rod installed on one side of the outer wall of the wheel frame body, the output end of the electric telescopic rod is installed with a support plate, one side of the support plate is installed with a drive motor, the other side of the support plate is fixedly connected to one side of the locking disk, and the driving end of the drive motor passes through the center of the support plate and is fixedly connected to one side of the locking disk.

[0009] As a preferred solution of the present invention, the spring-loaded positioning assembly includes a deceleration groove opened on one side of the wheel, a rubber ring is installed on one side of the locking plate, multiple groups of first sliding grooves are opened inside the locking plate, and multiple groups of second sliding grooves corresponding to the first sliding grooves are opened inside the rubber ring. A sliding plate is slidably connected to the inner side of the first sliding groove, and the cross-section of the sliding plate is L-shaped.

[0010] As a preferred solution of the present invention, a plurality of positioning holes corresponding to the second sliding grooves are arranged inside the wheel at the deceleration groove, and a positioning column is installed at one end of the sliding plate, and the positioning column is snap-connected with the positioning hole.

[0011] As a preferred solution of the present invention, a first spring is installed between one end of one side of the sliding plate and the inner wall of the first sliding groove, and the rubber ring is slidably connected to the deceleration groove.

[0012] As a preferred solution of the present invention, the identification prompt component includes multiple groups of retraction grooves opened inside the locking disk, the inner side of the retraction groove is connected to the inner side of the first sliding groove, the inner side of the retraction groove is slidably connected with a retraction plate, and second springs are installed between the two ends of one side of the retraction plate and the inner wall of the retraction groove, and a push rod is installed on one side of the retraction plate between the two groups of second springs.

[0013] As a preferred solution of the present invention, a first inclined surface is provided at one end of the sliding plate, a second inclined surface is provided at one end of the retraction plate and is in contact with the first inclined surface, a receiving groove is provided inside the locking disk, an identification plate is slidably connected to the inner side of the receiving groove, the inner side of the receiving groove is connected to the inner side of the retraction groove, the identification plate is coated with red paint all around, and one end of the push rod is fixedly connected to one end of the identification plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The present invention can adjust the horizontal position of the locking plate by telescopic rotating assembly, decelerate and lock the wheel by spring-pressing positioning assembly, and prompt the personnel whether the wheel is locked by spring-pressing positioning assembly. The invention has a simple structure and is easy to operate, which avoids the situation that the locking component and the wheel body have a hard collision during self-locking, further improves the practicality of the device and ensures the self-locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the locking disk of the utility model;

[0018] Figure 3 This is a schematic diagram of the partial three-dimensional structure of the wheel of the utility model;

[0019] Figure 4 This is a partial cross-sectional structural diagram of the spring-loaded positioning component and the identification prompt component of the present invention.

[0020] In the figure: 1. wheel frame body; 2. wheel; 3. locking plate; 4. electric telescopic rod; 5. support plate; 6. drive motor; 7. sliding plate; 8. positioning column; 9. first spring; 10. retraction plate; 11. second spring; 12. push rod; 13. first inclined plane; 14. identification plate; 15. rubber ring. DETAILED DESCRIPTION

[0021] The following will combine 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, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example:

[0023] See also Figures 1-4 , the utility model provides a technical solution:

[0024] The trolley wheel is novel and can be locked by the user. When the trolley wheel is locked, the user can lock the trolley 2 with the help of the spring-loaded mechanism. The trolley wheel is convenient to operate and can be locked without any loosening of the trolley body.

[0025] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 As shown, the telescopic rotation assembly includes an electric telescopic rod 4 installed on one side of the outer wall of the wheel frame body 1, a support plate 5 is installed on the output end of the electric telescopic rod 4, a drive motor 6 is installed on one side of the support plate 5, and the other side of the support plate 5 is fixedly connected to one side of the locking disk 3. The driving end of the drive motor 6 passes through the support plate 5 and is fixedly connected to the center of one side of the locking disk 3. First, when it is necessary to lock the wheel 2, the electric telescopic rod 4 can be started first to drive the support plate 5 and the locking disk 3 close to the wheel 2, so that the rubber ring 15 is stuck in the inner side of the deceleration groove to increase the resistance when the wheel 2 rolls, and auxiliary deceleration is performed to force it to stop.

[0026] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 As shown, the spring-loaded positioning assembly includes a deceleration groove opened on one side of the wheel 2, a rubber ring 15 is installed on one side of the locking plate 3, a plurality of first sliding grooves are opened inside the locking plate 3, a plurality of second sliding grooves corresponding to the first sliding grooves are opened inside the rubber ring 15, and a sliding plate 7 is slidably connected to the inner side of the first sliding groove. The cross-section of the sliding plate 7 is L-shaped. Then, when the positioning column 8 is not docked with the positioning hole, if it contacts the inner wall of the deceleration groove, it will drive the sliding plate 7 to move inside the first sliding groove and the second sliding groove, and stretch the first spring 9 to prevent the positioning column 8 from directly colliding with the wheel 2 and causing damage.

[0027] In this embodiment, if Figure 1 、 Figure 2 and Figure 3As shown, the interior of the wheel 2 is provided with a plurality of groups of positioning holes corresponding to the second sliding groove at the deceleration groove. A positioning post 8 is installed at one end of the sliding plate 7, and the positioning post 8 is engaged with the positioning hole. A first spring 9 is installed between one end of one side of the sliding plate 7 and the inner wall of the first sliding groove. The rubber ring 15 is slidingly connected to the deceleration groove. Furthermore, with the friction between the deceleration groove and the rubber ring 15, the wheel 2 gradually stops rotating. When the positioning post 8 is aligned with the positioning hole during rotation, it can be driven by the first spring 9 to directly snap into the inner side of the positioning hole to lock the wheel 2. If the positioning post 8 is still not aligned with the positioning hole after the wheel 2 stops rotating, the drive motor 6 can be started to drive the locking disk 3 to actively rotate, so that the positioning post 8 is aligned with the positioning hole and snapped into place for locking.

[0028] In this embodiment, if Figure 1 、 Figure 2 and Figure 4 As shown, the identification prompt component includes multiple groups of retraction grooves opened inside the locking disk 3, the inner side of the retraction groove is communicated with the inner side of the first sliding groove, the inner side of the retraction groove is slidably connected with a retraction plate 10, and second springs 11 are installed between the two ends of one side of the retraction plate 10 and the inner wall of the retraction groove. A push rod 12 is installed on one side of the retraction plate 10 between the two groups of second springs 11, one end of the sliding plate 7 is provided with a first inclined surface 13, and one end of the retraction plate 10 is provided with a second inclined surface that fits into the first inclined surface 13. A receiving groove is opened inside the locking disk 3, and an identification plate 14 is slidably connected to the inner side of the receiving groove, and the inner side of the receiving groove is connected to the inner side of the retraction groove. The identification plate 14 is coated with red paint all around, and one end of the push rod 12 is fixedly connected to one end of the identification plate 14. Furthermore, after the rubber ring 15 fits the deceleration groove, the personnel can observe whether the identification plate 14 pops out. The retraction force of the first spring 9 is greater than the retraction force of the second spring 11. When the first spring 9 drives the sliding plate 7 and the positioning column 8 to pop out, the first inclined surface 13 and the second inclined surface contact, and the sliding plate 7 forces the retraction plate 10 to retract into the inside of the retraction groove. The push rod 12 lifts the identification plate 14, and the red paint on the identification plate 14 is more obvious. After observing that it pops out, the personnel can judge that the wheel 2 has been locked.

[0029] The implementation principle of a new self-locking trolley wheel in the embodiment of the present application is as follows: when it is necessary to lock the wheel 2, the electric telescopic rod 4 can be started first to drive the support plate 5 and the locking plate 3 close to the wheel 2, so that the rubber ring 15 is stuck in the inner side of the deceleration groove to increase the resistance when the wheel 2 rolls, and to perform auxiliary deceleration to force it to stop. When the positioning column 8 is not engaged with the positioning hole, if it contacts the inner wall of the deceleration groove, it will drive the sliding plate 7 to move inside the first sliding groove and the second sliding groove, and stretch the first spring 9 to prevent the positioning column 8 from directly colliding with the wheel 2 and causing damage. As the deceleration groove and the rubber ring 15 rub against each other, the wheel 2 gradually stops rotating. When the positioning column 8 is aligned with the positioning hole during rotation, it can be driven by the first spring 9 to Then snap it into the inner side of the positioning hole to lock the wheel 2. If the positioning post 8 is still not aligned with the positioning hole after the wheel 2 stops rotating, the drive motor 6 can be started to drive the locking disk 3 to rotate actively, so that the positioning post 8 is aligned with the positioning hole and snapped into the locking. After the rubber ring 15 fits the deceleration groove, the personnel can observe whether the identification plate 14 pops out. The retraction force of the first spring 9 is greater than the retraction force of the second spring 11. When the first spring 9 drives the sliding plate 7 and the positioning post 8 to pop out, the first inclined surface 13 and the second inclined surface contact, and the sliding plate 7 forces the retraction plate 10 to retract into the inside of the retraction groove. The push rod 12 lifts the identification plate 14. The red pigment on the identification plate 14 is more obvious. After observing that it pops out, the personnel can judge that the wheel 2 has been locked.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel self-locking trolley wheel, comprising a wheel frame body (1), characterized in that: One side of the inner wall of the wheel frame body (1) is rotatably connected to the wheel (2), and one side of the wheel frame body (1) is installed with a deceleration locking mechanism, the deceleration locking mechanism comprising a telescopic rotating assembly, a locking disk (3), a spring-loaded positioning assembly, and a marking prompting assembly, the locking disk (3) being installed on the telescopic rotating assembly, the telescopic rotating assembly being used to adjust the horizontal position of the locking disk (3), the spring-loaded positioning assembly being used to decelerate and lock the wheel (2), and the marking prompting assembly being used to prompt a person whether the spring-loaded positioning assembly has locked the wheel (2).

2. A novel self-locking trolley wheel according to claim 1, characterized in that: The telescopic rotation assembly comprises an electric telescopic rod (4) mounted on one side of the outer wall of the wheel frame body (1); a support plate (5) is mounted on the output end of the electric telescopic rod (4); a drive motor (6) is mounted on one side of the support plate (5); the other side of the support plate (5) is fixedly connected to one side of the locking disk (3); and the drive end of the drive motor (6) passes through the center of the support plate (5) and is fixedly connected to one side of the locking disk (3).

3. A novel self-locking trolley wheel according to claim 2, characterized in that: The spring-loaded positioning assembly includes a deceleration groove provided on one side of the wheel (2), a rubber ring (15) installed on one side of the locking plate (3), a plurality of first sliding grooves provided inside the locking plate (3), a plurality of second sliding grooves corresponding to the first sliding grooves provided inside the rubber ring (15), a sliding plate (7) slidably connected to the inner side of the first sliding groove, and the cross section of the sliding plate (7) is L-shaped.

4. A novel self-locking trolley wheel according to claim 3, characterized in that: A plurality of positioning holes corresponding to the second sliding grooves are arranged inside the wheel (2) at the deceleration groove, and a positioning column (8) is installed at one end of the sliding plate (7), and the positioning column (8) is connected to the positioning hole in a snap-fitting manner.

5. The novel self-locking trolley wheel according to claim 4, characterized in that: A first spring (9) is installed between one end of one side of the sliding plate (7) and the inner wall of the first sliding groove, and the rubber ring (15) is in sliding connection with the deceleration groove.

6. The novel self-locking trolley wheel according to claim 5, characterized in that: The identification prompt component includes multiple groups of retraction grooves opened inside the locking disk (3), the inner side of the retraction groove is connected to the inner side of the first sliding groove, the inner side of the retraction groove is slidably connected to a retraction plate (10), and second springs (11) are installed between the two ends of one side of the retraction plate (10) and the inner wall of the retraction groove, and a push rod (12) is installed on one side of the retraction plate (10) between the two groups of second springs (11).

7. The novel self-locking trolley wheel according to claim 6, characterized in that: A first inclined surface (13) is provided at one end of the sliding plate (7), a second inclined surface that is in contact with the first inclined surface (13) is provided at one end of the retracting plate (10), a receiving groove is provided inside the locking disk (3), an identification plate (14) is slidably connected to the inside of the receiving groove, the inside of the receiving groove is connected to the inside of the retracting groove, the identification plate (14) is coated with red paint all around, and one end of the push rod (12) is fixedly connected to one end of the identification plate (14).

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