A caster adjusting device capable of quickly adjusting levelness

Abstract

This utility model relates to the technical field of outdoor barbecue equipment, and in particular to a caster adjustment device for quick leveling. Each lifting shaft has a rotatably connected swivel caster with a brake at its bottom end. Each lifting shaft has a fixed grooved sleeve, and each grooved sleeve has a slidably connected sphere. A connecting rod is fixedly connected to one side of each sphere, and an L-shaped plate is fixedly connected to one end of each connecting rod. Each L-shaped plate has a scale. This utility model works by rotating and moving the lifting shaft upwards, causing the grooved sleeve to move synchronously. The grooved sleeve pushes the sphere, which in turn drives the L-shaped plate to move via the connecting rod. The scale measures and displays the displacement of the L-shaped plate, thus intuitively reflecting the lifting height of the lifting shaft. This facilitates precise adjustment of the height of multiple swivel casters with brakes, avoiding repeated adjustments and enabling quick and accurate adjustment of the position of the swivel casters with brakes.

Description

Technical Field

[0001] This utility model relates to the field of outdoor barbecue equipment technology, and in particular to a caster adjustment device that can quickly adjust the levelness. Background Technology

[0002] Outdoor barbecues are a common gathering activity. When barbecuing, a support frame is needed to support the barbecue grill. However, when the frame is placed on a lawn, it is found that the grill tilts severely due to the unevenness of the grass. The food and seasonings placed on it may tip over at any time, which not only affects the cooking experience but also poses a safety hazard. Therefore, caster adjustment devices are used to support the frame.

[0003] The caster adjustment device contacts the ground, allowing for individual adjustment of the four casters to ensure all four are in contact with the ground. Even on uneven dirt or undulating stone paths, the grill can be perfectly leveled in just a few minutes, ensuring its stability and preventing food from spilling during cooking, while also guaranteeing safety during grilling.

[0004] When adjusting the four corner casters, each caster needs to be adjusted individually. The highest and lowest points of the casters are fixed during vertical movement. However, when it is necessary to move the casters to a certain height between the highest and lowest points, the lack of height measurement makes it impossible to move the casters to the set height position accurately. Multiple adjustments are required to determine the correct position, making it impossible to quickly and accurately adjust the position of the casters. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where the lack of height measurement makes it impossible to accurately move the casters to the set height position, requiring multiple adjustments and making it impossible to quickly and accurately adjust the position of the casters. Therefore, this invention proposes a caster adjustment device that can quickly adjust the levelness.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a caster adjustment device for quick level adjustment, including a support beam, with fixed bushings fixedly connected to both ends of the support beam. Each fixed bushing is threadedly connected to a lifting shaft, with a knob mechanism fixedly connected to the upper end of each lifting shaft. A universal caster with a brake is rotatably connected to the bottom end of each lifting shaft. A grooved sleeve is fixedly connected to each lifting shaft, with a slidably connected ball on each grooved sleeve. A connecting rod is fixedly connected to one side of each sphere, with an L-shaped plate fixedly connected to one end of each connecting rod. One end of each L-shaped plate is slidably inserted into a corresponding through hole, and each L-shaped plate is connected with a scale.

[0008] Preferably, the support beam is coated with a polyurethane coating.

[0009] Preferably, the knob mechanism includes a fixed sleeve, which is sleeved onto one end of the lifting shaft. A knob is fixedly connected to the upper end of the fixed sleeve. A screw pin is connected to the fixed sleeve. A threaded hole is opened on the lifting shaft, and the screw pin is connected to the threaded hole.

[0010] Preferably, the knob is a plastic knob.

[0011] Preferably, the knob has several protrusions connected at equal intervals along the axis.

[0012] Preferably, the connecting rod and the L-shaped plate are an integral structure.

[0013] Preferably, both sides of the bottom end of the support beam are connected to a cleaning mechanism for cleaning the surface of the lifting shaft. The cleaning mechanism includes a fixing rod, one end of which is fixedly connected to the bottom end of the support beam, and the other end of which is fixedly connected to a mounting ring. The lifting shaft passes through the mounting ring, and a cleaning pad is connected to the inner ring wall of the mounting ring. The lifting shaft cooperates with the cleaning pad.

[0014] Preferably, the cleaning pad is a polyurethane cleaning pad.

[0015] The caster adjustment device for quickly adjusting levelness proposed in this utility model has the following advantages:

[0016] When the lifting shaft rotates and moves upward, it drives the grooved sleeve to move synchronously. As the lifting shaft continues to move upward, the grooved sleeve pushes the sphere to move. The sphere drives the L-shaped plate to move through the connecting rod. The scale measures and displays the displacement of the L-shaped plate, thus intuitively reflecting the lifting height of the lifting shaft. This facilitates precise adjustment of the height of multiple braked swivel casters, avoiding repeated adjustments and enabling quick and accurate adjustment of the position of the braked swivel casters. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a caster adjustment device that can quickly adjust the levelness according to the present invention;

[0018] Figure 2 This is a schematic diagram of the connection between the support beam and the fixed bushing in a caster adjustment device that can quickly adjust the levelness according to this utility model.

[0019] Figure 3 This is a schematic diagram of the connection between the lifting shaft and the knob mechanism in a caster adjustment device that can quickly adjust the levelness according to this utility model.

[0020] Figure 4 for Figure 3A magnified view of the structure at point A above;

[0021] Figure 5 This is a schematic diagram of the connection between the L-shaped plate and the scale in a caster adjustment device for quick leveling proposed in this utility model.

[0022] Figure 6 for Figure 5 A magnified structural diagram of point B above;

[0023] Figure 7 This is a schematic diagram of the connection between the support beam and the cleaning mechanism in a caster adjustment device that allows for rapid leveling, as proposed in this utility model.

[0024] In the diagram: 1. Support beam; 2. Fixed bushing; 3. Lifting shaft; 4. Knob mechanism; 5. Universal caster with brake; 6. Groove sleeve; 7. Sphere; 8. Connecting rod; 9. L-shaped plate; 10. Through hole; 11. Scale; 12. Cleaning mechanism; 41. Fixed sleeve; 42. Knob; 43. Screw pin; 44. Protrusion; 45. Threaded hole; 121. Fixed rod; 122. Mounting ring; 123. Cleaning pad. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1: Refer to Figure 1-7 A caster adjustment device for quick leveling includes a support beam 1, which is coated with a polyurethane coating to protect it from corrosion and slow down the rate of corrosion, thereby extending its service life. Fixed bushings 2 are fixedly connected to both ends of the support beam 1. A lifting shaft 3 is threaded onto each fixed bushing 2. A knob mechanism 4 is fixedly connected to the upper end of each lifting shaft 3. A universal caster 5 with a brake is rotatably connected to the bottom end of each lifting shaft 3. A grooved sleeve 6 is fixedly connected to each lifting shaft 3. A spherical body 7 is slidably connected to each grooved sleeve 6. A connecting rod 8 is fixedly connected to one side of each sphere 7. An L-shaped plate 9 is fixedly connected to one end of each connecting rod 8. The connecting rod 8 and the L-shaped plate 9 are integrally formed. Through holes 10 are provided on both sides of the support beam 1. One end of each L-shaped plate 9 is slidably inserted into a corresponding through hole 10. A scale 11 is connected to each L-shaped plate 9.

[0027] Work process:

[0028] Manually rotate the knob mechanism 4, which drives the lifting shaft 3 to rotate. When the lifting shaft 3 rotates clockwise, under the threaded limit action of the fixed shaft sleeve 2, the lifting shaft 3 moves upward along the axis, thereby driving the braked universal caster 5 to rise synchronously. At this time, the distance between the braked universal caster 5 and the bottom end of the support beam 1 is reduced, which reduces the distance between the support beam 1 and the ground, thereby reducing the height of the support beam 1.

[0029] When the lifting shaft 3 rotates and moves upward, it drives the groove sleeve 6 to move synchronously. The groove sleeve 6 rotates with the lifting shaft 3. During this process, relative sliding occurs between the lifting shaft 3 and the sphere 7. As the lifting shaft 3 continues to move upward, the groove sleeve 6 pushes the sphere 7 to move. The sphere 7 drives the L-shaped plate 9 to move through the connecting rod 8. The scale 11 measures and displays the displacement of the L-shaped plate 9, thus intuitively reflecting the lifting height of the lifting shaft 3. When adjusting the height of multiple swivel casters 5 with brakes, the scale 11 can accurately display the adjustment amount of each swivel caster 5 with brakes, which facilitates precise adjustment of the height of multiple swivel casters 5 with brakes, avoids repeated adjustments, and thus facilitates quick and accurate adjustment of the position of the swivel casters 5 with brakes.

[0030] Example 2: When rotating the lifting shaft 3, because the upper end of the lifting shaft 3 is relatively narrow, it is inconvenient to hold the upper end of the lifting shaft 3 for rotation. (Refer to...) Figure 3 and Figure 7 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the knob mechanism 4 includes a fixed sleeve 41, which is sleeved onto one end of the lifting shaft 3. A knob 42 is fixedly connected to the upper end of the fixed sleeve 41. The knob 42 is a plastic knob. Several protrusions 44 are connected at equal intervals along the axis of the knob 42. A screw pin 43 is connected to the fixed sleeve 41. A threaded hole 45 is opened on the lifting shaft 3. The screw pin 43 is connected to the threaded hole 45.

[0031] The operator holds the knob 42 to rotate it. Several protrusions 44 on the surface of the knob 42 can increase the friction with the hand and ensure the stability of operation. When the knob 42 is rotated, it drives the fixed sleeve 41 to rotate synchronously, which in turn drives the lifting shaft 3 to rotate. The structural design of the knob 42 increases the operating diameter of the upper end of the lifting shaft 3, making manual rotation operation more labor-saving and convenient.

[0032] Example 3: During equipment movement, debris easily adheres to the lifting shaft 3, thus affecting the fit between the lifting shaft 3 and the fixed bushing 2. (Refer to...) Figure 6-7As another preferred embodiment of this utility model, the difference from embodiment 1 is that the bottom ends of the support beam 1 are both connected to a cleaning mechanism 12 for cleaning the surface of the lifting shaft 3. The cleaning mechanism 12 includes a fixing rod 121. One end of the fixing rod 121 is fixedly connected to the bottom end of the support beam 1, and the other end of the fixing rod 121 is fixedly connected to an installation ring 122. The lifting shaft 3 passes through the installation ring 122. A cleaning pad 123 is connected to the inner ring wall of the installation ring 122. The cleaning pad 123 is a polyurethane cleaning pad. The lifting shaft 3 cooperates with the cleaning pad 123.

[0033] The fixing rod 121 fixes the mounting ring 122, and the mounting ring 122 fixes the cleaning pad 123. After the lifting shaft 3 rotates, there is a relative displacement between it and the cleaning pad 123. The cleaning pad 123 rubs and cleans the lifting shaft 3, effectively preventing the accumulation of impurities, so as not to affect the fit between the lifting shaft 3 and the fixing bushing 2.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A caster adjustment device for quick leveling, comprising a support beam (1), wherein both ends of the support beam (1) are fixedly connected to fixed bushings (2), characterized in that, in: Each of the fixed bushings (2) is threaded with a lifting shaft (3), and each lifting shaft (3) is fixedly connected to a knob mechanism (4) at its upper end. Each lifting shaft (3) is rotatably connected to a universal caster (5) with a brake at its bottom end. Each lifting shaft (3) is fixedly connected with a grooved sleeve (6), and each grooved sleeve (6) is slidably connected with a sphere (7). Each sphere (7) is fixedly connected to a connecting rod (8) on one side. Each connecting rod (8) is fixedly connected to an L-shaped plate (9) at one end. Each L-shaped plate (9) is slidably inserted into a corresponding through hole (10) at one end. Each L-shaped plate (9) is connected with a scale (11).

2. The caster adjustment device for quick leveling according to claim 1, characterized in that, The support beam (1) is coated with a polyurethane coating.

3. The caster adjustment device for quick leveling according to claim 1, characterized in that, The knob mechanism (4) includes a fixed sleeve (41), which is sleeved onto one end of the lifting shaft (3). A knob (42) is fixedly connected to the upper end of the fixed sleeve (41). A screw pin (43) is connected to the fixed sleeve (41). A threaded hole (45) is opened on the lifting shaft (3), and the screw pin (43) is connected to the threaded hole (45).

4. The caster adjustment device for quick leveling according to claim 3, characterized in that, The knob (42) is a plastic knob.

5. The caster adjustment device for quick leveling according to claim 4, characterized in that, The knob (42) has several protrusions (44) connected at equal intervals along the axis.

6. The caster adjustment device for quickly adjusting levelness according to claim 1, characterized in that, The connecting rod (8) and the L-shaped plate (9) are an integral structure.

7. The caster adjustment device for quick leveling according to claim 1, characterized in that, The bottom of the support beam (1) is connected to two sides of a cleaning mechanism (12) for cleaning the surface of the lifting shaft (3). The cleaning mechanism (12) includes a fixing rod (121). One end of the fixing rod (121) is fixedly connected to the bottom of the support beam (1), and the other end of the fixing rod (121) is fixedly connected to an installation ring (122). The lifting shaft (3) passes through the installation ring (122). A cleaning pad (123) is connected to the inner ring wall of the installation ring (122). The lifting shaft (3) cooperates with the cleaning pad (123).

8. The caster adjustment device for quick level adjustment according to claim 7, characterized in that, The cleaning pad (123) is a polyurethane cleaning pad.

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