Straight gear meshing self-locking and flexible transmission unlocking device

Abstract

The utility model relates to the technical field of transmission unlocking devices, and discloses a straight gear meshing self-locking and flexible transmission unlocking device which comprises a base, a front wheel assembly, a rear wheel assembly, an unlocking handle, an upper cover, a spring and a self-locking mechanism, the base is provided with the front wheel assembly and the rear wheel assembly, one end of the base is provided with the unlocking handle, and the other end of the base is provided with the spring. An upper cover is installed on the base, the base and the upper cover form a containing cavity, the spring and the self-locking mechanism are both arranged in the containing cavity and installed on the base, the other end of the spring is connected with the unlocking handle, the unlocking handle is connected with one end of the self-locking mechanism, and the other end of the self-locking mechanism is connected with the front wheel assembly. The self-locking mechanism is operated through the unlocking handle to drive a switch of the front wheel assembly to operate. The device realizes convenient operation of the locking wheel and the like. The direct insertion gear meshing is adopted, operation is easy, the self-locking effect is good, and the design structure integrating direct insertion gear meshing self-locking and flexible transmission is adopted. The self-locking and transmission functions are achieved through straight gear engagement, and the device is more portable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission unlocking devices, in particular to a straight-slotted tooth meshing self-locking and flexible transmission unlocking device. Background Art

[0002] In daily life, when cleaning various desktops, we need to move various heavy objects such as electrical appliances (such as coffee machines, wall breakers, and microwave ovens), so we need tools such as skateboards to assist in moving them. Existing tools for carrying heavy objects only have a single function. They either rely on wheels to slide, requiring additional force to stop sliding; or they require complex mechanisms to achieve locking functions, which are complicated and impractical, greatly affecting people's carrying operations. In addition, the existing carrying tools on the market lack self-locking functions or have poor self-locking capabilities, making them very prone to slipping.

[0003] Therefore, in view of the above problems, the existing transmission unlocking device technology needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems of the existing transmission unlocking device technology, such as the carrier cannot self-lock or the self-locking ability is poor; through the rational design of the transmission unlocking device technology, the base, front wheel assembly, rear wheel assembly, unlocking handle, upper cover, spring and self-locking mechanism are adopted to realize convenient self-locking operation and better realize wheel locking operation.

[0005] The technical solutions of the present utility model are as follows:

[0006] A straight-slotted tooth engagement self-locking and flexible transmission unlocking device, the device comprising: a base, a front wheel assembly, a rear wheel assembly, an unlocking handle, an upper cover, a spring and a self-locking mechanism, the front wheel assembly and the rear wheel assembly are mounted on the base, the unlocking handle is mounted on one end of the base, the upper cover is mounted on the base, and the base and the upper cover form a accommodating cavity, the spring and the self-locking mechanism are both arranged in the accommodating cavity and mounted on the base, the other end of the spring is connected to the unlocking handle, the unlocking handle is connected to one end of the self-locking mechanism, and the other end of the self-locking mechanism is connected to the front wheel assembly, and the self-locking mechanism drives the switch operation of the front wheel assembly through the unlocking handle.

[0007] Furthermore, the base is made of plastic.

[0008] Furthermore, the upper cover is made of plastic.

[0009] Furthermore, the unlocking handle is made of plastic.

[0010] Furthermore, the rear wheel assembly includes a rear wheel and a rear wheel axle, and the rear wheel is rotatably connected to the base via the rear wheel axle.

[0011] Furthermore, the base is provided with reinforcing ribs.

[0012] Furthermore, the reinforcing ribs include central reinforcing ribs and edge reinforcing ribs, the central reinforcing ribs are arranged at the center of the base, and the central reinforcing ribs are connected to the side walls of the base through the edge reinforcing ribs.

[0013] Furthermore, the reinforcing ribs are made of plastic.

[0014] Furthermore, the base and the reinforcing ribs are integrally formed.

[0015] Furthermore, the self-locking mechanism is symmetrically arranged with respect to the center line of the base.

[0016] Furthermore, the self-locking mechanism includes a flexible transmission member, a slide and a locking wheel member, one end of the flexible transmission member is connected to the unlocking handle, the other end of the flexible transmission member is connected to one end of the slide, the slide is slidably installed on the base, and the other end of the slide is installed with the locking wheel member, and the locking wheel member is used to open and close the front wheel assembly.

[0017] Furthermore, the flexible transmission member is selected from an elastic metal sheet, and the flexible transmission member is arranged in an arc shape.

[0018] Furthermore, the front wheel assembly includes a front wheel, a front wheel axle and a lock accessory. The front wheel is rotatably connected to the base via the front wheel axle. The lock accessory is installed on the front wheel. The lock accessory cooperates with the lock wheel component and is used to open and close the front wheel.

[0019] Furthermore, the lock accessory is a straight wheel spline, and the locking wheel component is a locking wheel spline. The straight wheel spline and the locking wheel spline are meshingly connected and are used for the switching operation of the front wheel.

[0020] Furthermore, the sliding seat and the locking wheel member are integrally formed.

[0021] Furthermore, the sliding seat and the locking wheel member are arranged with their center lines coinciding.

[0022] Furthermore, the unlocking handle is movably connected to the base.

[0023] Furthermore, the front wheel axle and the rear wheel axle are both installed in the accommodating cavity; the base is provided with wheel through holes, and the wheel through holes are used to make way for the front wheels and the rear wheels to protrude.

[0024] Furthermore, anti-slip protrusions are provided on the surface of the upper cover.

[0025] Beneficial effects

[0026] The utility model rationally designs the transmission unlocking device technology and adopts a base, a front wheel assembly, a rear wheel assembly, an unlocking handle, an upper cover, a spring and a self-locking mechanism, which can realize convenient self-locking operation and better realize wheel locking operation.

[0027] This invention utilizes inline gear meshing, offering simple operation and excellent self-locking properties. It also integrates inline gear meshing, self-locking, and flexible transmission into a single design. The design integrates bevel gear meshing, self-locking, and flexible transmission into a single structure. With a single press, the wheels can be unlocked and locked, making operation simple, convenient, and cost-effective. This invention boasts a simple structure and easy operation, achieving both self-locking and transmission functions through inline gear meshing, making it more portable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a straight-slotted tooth engagement self-locking and flexible transmission unlocking device of the present invention.

[0029] Figure 2 This is a schematic diagram of the back structure of a straight-slotted tooth engagement self-locking and flexible transmission unlocking device of the present invention.

[0030] Figure 3 This is a schematic diagram of the exploded structure of a straight-slotted tooth engagement self-locking and flexible transmission unlocking device of the present invention.

[0031] Figure 4 It is a partially enlarged structural schematic diagram of a straight-slotted gear engagement self-locking and flexible transmission unlocking device of the present invention.

[0032] Figure numbers: 01, upper cover; 02, unlocking handle; 03, rear wheel assembly; 04, reinforcing rib; 05, base; 06, first self-locking mechanism; 07, second self-locking mechanism; 061, front wheel assembly; 062, slide; 063, flexible transmission part; 064, spring. DETAILED DESCRIPTION

[0033] 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 embodiments described 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.

[0034] See Figure 1-Figure 4As shown, the present invention provides a straight-slotted gear engagement self-locking and flexible transmission unlocking device, which includes: a base 05, a front wheel assembly 061, a rear wheel assembly 03, an unlocking handle 02, an upper cover 01, a spring 064 and a self-locking mechanism; the base 05 is selected from a plastic base; the upper cover 01 is selected from a plastic upper cover; the unlocking handle 02 is selected from a plastic unlocking handle;

[0035] The front wheel assembly 061 and the rear wheel assembly 03 are mounted on the base 05. An unlocking handle 02 is mounted on one end of the base 05. The unlocking handle 02 is movably connected to the base 05. An upper cover 01 is mounted on the base 05, and the base 05 and the upper cover 01 form an accommodating cavity. The spring 064 and the self-locking mechanism are both arranged in the accommodating cavity and mounted on the base 05. The other end of the spring 064 is connected to the unlocking handle 02, which is connected to one end of the self-locking mechanism. The other end of the self-locking mechanism is connected to the front wheel assembly 061. The self-locking mechanism drives the switch of the front wheel assembly 061 to operate by operating the unlocking handle 02.

[0036] Among them, the rear wheel assembly 03 includes a rear wheel and a rear wheel axle, and the rear wheel is rotatably connected to the base 05 through the rear wheel axle; the front wheel assembly 061 includes a front wheel, a front wheel axle and a lock accessory, and the front wheel is rotatably connected to the base 05 through the front wheel axle, and the lock accessory is installed on the front wheel, and the lock accessory cooperates with the lock wheel component and is used to open and close the front wheel; the self-locking mechanism is symmetrically arranged with respect to the center line of the base 05; that is: a first self-locking mechanism 06 and a second self-locking mechanism 07; the self-locking mechanism includes a flexible transmission member 063, a slide 062 and a lock wheel component, one end of the flexible transmission member 063 is connected to the unlocking handle 02, and the other end of the flexible transmission member 063 is connected to the slide 062 At one end, the slide 062 is slidably mounted on the base 05, and a locking wheel component is installed at the other end of the slide 062, which is used to switch the front wheel assembly 061 on and off; the flexible transmission component 063 is selected from an elastic metal sheet, and the flexible transmission component 063 is arranged in an arc shape; the lock accessory is selected from a straight wheel spline, and the locking wheel component is selected from a locking wheel spline, which is engaged with the straight wheel spline and is used for switching the front wheel on and off; the slide 062 and the locking wheel component are integrally formed; the slide 062 and the locking wheel component are arranged with their center lines coinciding; wherein, the front wheel axle and the rear wheel axle are both installed in the accommodating cavity; the base 05 is provided with a wheel through hole, which is used to make the front wheel and the rear wheel protrude;

[0037] The base 05 is provided with reinforcing ribs 04; the reinforcing ribs 04 include central reinforcing ribs and edge reinforcing ribs. The central reinforcing rib is provided at the center of the base 05, and the central reinforcing rib is connected to the side wall of the base 05 via the edge reinforcing ribs. The reinforcing ribs 04 are made of plastic. The base 05 and the reinforcing ribs 04 are integrally formed.

[0038] Among them, anti-slip protrusions are provided on the surface of the upper cover 01.

[0039] The specific implementation method of the present utility model is as follows: the unlocking handle and the sliding seat are connected by a flexible belt (flexible connecting member), and the sliding seat with straight-slot teeth and the front wheel hub are engaged through the straight-slot teeth to complete the self-locking of the front wheel; the upper cover and the base are assembled by snap buckles; when transporting, a heavy object is placed on the surface of the upper cover, the unlocking handle is pulled backward, and the sliding seat is transmitted to the middle through the flexible belt to disengage the straight-slot teeth of the sliding seat and the front wheel assembly, thereby realizing the unlocking and sliding function; when the transport is completed, the unlocking handle is released, and the flexible structure of the sliding seat is engaged with the straight-slot teeth of the front wheel assembly hub under the action of the spring reaction force to realize the self-locking and anti-slip function. The invention has a simple structure and is easy to operate. It realizes self-locking and transmission functions through the engagement of straight-slot teeth, and is more portable and reliable.

[0040] 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 straight tooth meshing self-locking and flexible transmission unlocking device, characterized in that: The device includes: a base, a front wheel assembly, a rear wheel assembly, an unlocking handle, an upper cover, a spring and a self-locking mechanism. The front wheel assembly and the rear wheel assembly are installed on the base, the unlocking handle is installed on one end of the base, the upper cover is installed on the base, and the base and the upper cover form an accommodating cavity. The spring and the self-locking mechanism are both arranged in the accommodating cavity and installed on the base. The other end of the spring is connected to the unlocking handle, the unlocking handle is connected to one end of the self-locking mechanism, and the other end of the self-locking mechanism is connected to the front wheel assembly. The self-locking mechanism drives the switch of the front wheel assembly to operate through the unlocking handle.

2. A straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 1, characterized in that: The base is provided with reinforcing ribs.

3. A straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 2, characterized in that: The reinforcing ribs include central reinforcing ribs and edge reinforcing ribs. The central reinforcing ribs are arranged at the center of the base, and the central reinforcing ribs are connected to the side walls of the base through the edge reinforcing ribs.

4. A straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 1, characterized in that: The self-locking mechanism is symmetrically arranged with respect to the center line of the base.

5. The straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 1, characterized in that: The self-locking mechanism includes a flexible transmission member, a slide and a locking wheel member, one end of the flexible transmission member is connected to the unlocking handle, the other end of the flexible transmission member is connected to one end of the slide, the slide is slidably installed on the base, and the other end of the slide is installed with the locking wheel member, and the locking wheel member is used to open and close the front wheel assembly.

6. A straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 5, characterized in that: The front wheel assembly includes a front wheel, a front wheel axle and a lock accessory. The front wheel is rotatably connected to the base via the front wheel axle. The lock accessory is installed on the front wheel. The lock accessory cooperates with the wheel lock component and is used to open and close the front wheel.

7. A straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 6, characterized in that: The lock accessory is a straight wheel spline, and the locking wheel component is a locking wheel spline. The straight wheel spline and the locking wheel spline are meshingly connected and are used for the switch operation of the front wheel.

8. The straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 5, characterized in that: The sliding seat and the locking wheel member are integrally formed.

9. A straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 8, characterized in that: The sliding seat and the locking wheel member are arranged so that their center lines coincide with each other.

10. The straight-slotted tooth engagement self-locking and flexible transmission unlocking device according to claim 1, characterized in that: The unlocking handle is movably connected to the base.

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