Quickly-assembled universal wheel

Abstract

The utility model discloses a quick-assembly type universal wheel, which relates to the field of universal wheels, and comprises a wheel carrier, a brake pad is arranged on the outer side of the top of the wheel carrier, a connector is arranged on the top of the wheel carrier, the connector is inserted into a mounting hole formed in a fixing frame, the connector is connected with the fixing frame through a clamping component, and a roller is mounted on the inner side of the bottom of the wheel carrier. And the wheel carrier is connected with the roller through a quick assembly. The roller carrier is provided with the quick-mounting assembly, the mounting clamping block is aligned with the quick-mounting groove and is clamped into the second limiting clamping block along the quick-mounting groove, so that the roller can be quickly mounted in the roller carrier, and when the roller carrier is disassembled, the second limiting clamping block is pressed outwards from the quick-mounting groove to extrude the second spring sleeve, so that the mounting clamping block can be pulled out along the quick-mounting groove, and the roller carrier is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the field of universal wheels, in particular to a quick-install universal wheel. Background Art

[0002] Universal wheels are so-called movable casters, and their structure allows 360-degree horizontal rotation. Casters are a general term, including movable casters and fixed casters. Fixed casters do not have a rotating structure and cannot rotate horizontally but only vertically. These two types of casters are generally used in combination. For example, the structure of a trolley is two fixed wheels in the front and two movable universal wheels in the back near the push handle.

[0003] For example, a quick-install universal wheel disclosed in the utility model with authorization announcement number CN219427844U has a ratchet block and a ratchet sleeve that cooperate with each other, so the rotating handle can only rotate the supporting foot in a fixed direction when it is rotated, thereby adjusting the height between the supporting foot and the mounting frame. When the rotating handle is rotated to a certain angle (that is, after the height of the supporting foot is adjusted a little), the rotating handle can be rotated in the direction to adjust the rotating handle to the desired position, and then the height of the supporting foot can be continued to be rotated and adjusted.

[0004] This prior art also has the following problems when used:

[0005] The roller and the mounting frame adopt an integrated structure. In actual use, since the roller is in direct contact with the ground, the damage rate of the roller is much higher than the damage rate of other parts such as the mounting frame. When the roller is damaged, it is necessary to replace the roller together with the mounting frame, otherwise the moving effect of the universal wheel will be affected, and the overall replacement is rather wasteful. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a quick-install universal wheel, which can solve the technical problem that the universal wheel as a whole needs to be replaced when the roller is damaged.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a quick-install universal wheel, comprising a wheel frame, and a brake pad is arranged on the outer side of the top of the wheel frame;

[0008] A connector is provided on the top of the wheel frame, and the connector is plugged into a mounting hole provided inside the fixing frame, and the connector and the fixing frame are connected via a clamping assembly;

[0009] A roller is installed on the inner side of the bottom of the wheel frame, and the wheel frame and the roller are connected through a quick-install component.

[0010] As an optimal technical solution of the utility model, the clamping assembly includes a limit card block, a spring kit and a fixing groove, the fixing groove is opened inside the fixing frame and is evenly arranged around the mounting hole; the limit card block is connected to the mounting hole through a spring kit, and the limit card block is consistent with the position of the mounting slot opened around the connector.

[0011] As a preferred technical solution of the utility model, a limiting groove connected to the installation slot is provided on the outer side of the connector, and the limiting groove is used to limit the moving direction of the limiting block during assembly and disassembly.

[0012] As a preferred technical solution of the utility model, the first limit block is a shape with a middle protrusion and narrow upper and lower sides.

[0013] As a preferred technical solution of the utility model, a protrusion is installed at the bottom end of the limiting block 1, and the protrusion is consistent with the sliding groove opened at the bottom end of the fixing frame.

[0014] As an optimal technical solution of the utility model, a bearing and a connecting swivel are installed between the connecting head and the wheel frame. The top end of the connecting swivel is inserted into the bearing and is rotatably connected to the bearing. The bearing is fixed at the bottom end of the connecting head, and the connecting swivel is fixed at the top of the wheel frame.

[0015] As a preferred technical solution of the utility model, the quick-release assembly includes an installation block and a spring kit. A quick-release groove is opened on the inner side of the bottom of the wheel frame. The installation block is matched with the quick-release groove. The limiting block is connected to the storage groove of the quick-release groove through the spring kit. The wheel frame is connected to the installation block through the limiting block.

[0016] As a preferred technical solution of the utility model, a roller is provided in the middle of the roller, and both ends of the roller are connected to the installation block.

[0017] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0018] 1. The utility model is provided with a quick-install assembly. By aligning the installation card block with the quick-install slot and inserting it into the second limit card block along the quick-install slot, the roller can be quickly installed in the wheel frame. When disassembling, the second limit card block is pressed outward from the quick-install slot to squeeze the second spring kit, so that the installation card block can be pulled outward along the quick-install slot, which is convenient for disassembly;

[0019] 2. The utility model is provided with a clamping assembly, which can quickly clamp the connector inserted along the mounting hole through the provided limit clamp block, and fix the wheel frame by clamping the limit clamp block in the mounting groove. When disassembling, the connector can be easily removed from the fixing frame by pushing the protrusion at the bottom end of the limit clamp block outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the appearance diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the connection between the fixing frame and the connector of the utility model;

[0022] Figure 3 This is an exploded view of the connection between the fixing frame and the connector of the utility model;

[0023] Figure 4 This is a bottom view structural diagram of the connection between the fixing frame and the connector of the utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the wheel frame and the roller of the utility model;

[0025] Figure 6 This is an exploded view of the connection between the wheel frame and the roller of the utility model;

[0026] Among them: 1. wheel frame; 11. connecting swivel; 12. quick-release slot; 2. brake pad; 3. connecting head; 31. limit slot; 32. installation slot; 33. bearing; 4. fixing frame; 41. installation hole; 42. fixing slot; 5. limit block 1; 51. spring kit 1; 52. bump; 6. roller; 61. installation block; 7. limit block 2; 71. spring kit 2. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0028] Example

[0029] Please refer to Figure 1-4As shown, the utility model provides a quick-install universal wheel, which consists of a wheel frame 1, a brake pad 2 and a roller 6. The wheel frame 1 is installed at the bottom of a fixing frame 4, and the fixing frame 4 is installed at a suitable position of the device to be installed with screws. The brake pad 2 can realize the braking of the universal wheel. The upper end of the wheel frame 1 is rotatably connected to the bearing 33 through a connecting head 11, and the bearing 33 is fixed to the bottom end of a connecting head 3. The connecting head 3 is a columnar structure with a regular hexagonal cross section. A limiting groove 31 is provided on the upper part of the outer wall of the connecting head 3, and a mounting card groove 32 with a depth greater than the limiting groove 31 is provided on the lower part of the outer wall of the connecting head 3. The connecting head 3 is consistent with a mounting hole 41 provided at the bottom of the fixing frame 4. The mounting hole 41 is a columnar groove body with a regular hexagonal cross section. A fixing groove 42 is provided on the side wall of the mounting hole 41, and a limiting card block is connected in the fixing groove 42 through a spring kit 51. 1, the tail of the limit card block 15 is located in the fixed groove 42, the middle of the limit card block 15 is convex, the width of both sides is smaller than the middle position, and the outer side of the limit card block 15 is rounded, the position of the limit slot 31 and the installation slot 32 is aligned with the limit card block 15, and the width of the limit slot 31 and the installation slot 32 is consistent with the limit card block 15, so that when the connector 3 is inserted inward along the installation hole 41, the limit card block 15 can slide along the limit slot 31 and the installation slot 32, so that the limit card block 15 is stuck in the installation slot 32, and the bottom end of the limit card block 15 is provided with a protrusion 52 that can slide along the slide groove opened at the bottom end of the fixing frame 4, and the bottom end of the protrusion 52 is provided with an anti-slip pattern, which is convenient for the user to push the limit card block 15 outward, so that the connector 3 can be removed from the fixed groove 42, and the limit card block 15, the spring kit 151 and the fixed groove 42 form a clamping assembly;

[0030] Specifically, align the connector 3 with the fixing groove 42 and insert it. During the upward movement of the connector 3, the connector 3 contacts and squeezes the limiting card block 5 inward, so that the limiting card block 5 squeezes the spring kit 51, increases the elastic potential energy of the spring kit 51, and the limiting card block 5 slides along the limiting groove 31 into the installation card groove 32 to get stuck, and the connector 3 is stuck in the fixing frame 4 to complete the installation operation. When it needs to be disassembled, push the protrusion 52 at the bottom of the fixing frame 4 outward to drive the limiting card block 5 to squeeze the spring kit 51 inward, so that the contact surface between the limiting card block 5 and the installation card groove 32 completely enters the fixing groove 42, so that the connector 3 can be pulled outward, pull the connector 3 outward, let the connector 3 contact and squeeze the limiting card block 5, and take out the connector 3;

[0031] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, a rotatable roller 6 is installed at the bottom of the wheel frame 1, and mounting blocks 61 are provided at both ends of the roller shaft of the roller 6. The mounting block 61 is a columnar structure with a regular octagonal cross section. The inner side of the bottom of the wheel frame 1 is symmetrically provided with a quick-install groove 12, and a storage groove is provided at the tail of the quick-install groove 12. The tail of the limiting block 7 is located in the storage groove, and the limiting block 7 is installed in the storage groove through the spring kit 71. The inner side of the limiting block 7 is consistent with the mounting block 61, and the mounting block 61 can be clamped by the limiting block 7. The spring kit 71 is a middle protrusion, and the width of both sides is lower than the middle width, which is convenient for pushing in and out the mounting block 61 during installation and disassembly. The mounting block 61 and the spring kit 71 form a quick-install component;

[0032] Specifically, the installation block 61 is aligned with the quick-installation slot 12 and slid in, so that the installation block 61 contacts the outer side of the limiting block 7, and the roller 6 is pushed inward, squeezing the limiting block 7 to increase the elastic potential energy of the spring kit 71. When the installation block 61 is inserted into the inner side of the limiting block 7, the spring kit 71 is pushed out and clamps the installation block 61 under the action of the elastic potential energy of the spring kit 71. When the universal wheel moves and rotates, the roller 6 is always located at the rear side of the fixing frame 4. Therefore, the installation block 61 will not squeeze and wear the limiting block 2 7, thereby increasing the service life. When the roller 6 is damaged and needs to be replaced, the limiting block 2 7 is pressed from the quick-installation slot 12 to both sides, so that the installation block 61 is in a pull-out state, that is, the inner side of the limiting block 2 7 and the contact surface of the roller 6 are completely inserted into the receiving slot of the quick-installation slot 12, and the roller 6 is pulled outward at the same time, so that the installation blocks 61 on both sides of the roller 6 squeeze the limiting block 2 7, and the roller 6 is removed and replaced with a new roller 6.

[0033] Specific working principle:

[0034] During installation, align the installation blocks 61 on both sides of the roller 6 with the quick-loading groove 12 and insert them, let the limiting block 2 7 clamp the installation block 61 to fix the position of the roller 6, align the connecting head 3 with the installation hole 41 on the inner side of the fixing frame 4 and insert it, let the limiting block 1 5 be clamped in the installation groove 32. When disassembly is required, push the protrusion 52 outward and pull the wheel frame 1 at the same time to allow the connecting head 3 to be removed from the fixing frame 4. When the roller 6 needs to be replaced, press the limiting block 2 7 on both sides to allow the installation block 61 to be in a state where it can be pulled out of the quick-loading groove 12, and then remove the roller 6.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A quick-install universal wheel, comprising a wheel frame (1), a brake pad (2) being arranged on the outer side of the top of the wheel frame (1), characterized in that: A connector (3) is provided on the top of the wheel frame (1), and the connector (3) is plugged into a mounting hole (41) provided inside the fixing frame (4), and the connector (3) and the fixing frame (4) are connected via a snap-fit ​​assembly; A roller (6) is installed on the inner side of the bottom of the wheel frame (1), and the wheel frame (1) and the roller (6) are connected via a quick-install assembly.

2. The quick-install universal wheel according to claim 1, characterized in that: The clamping assembly comprises a limit clamping block (5), a spring set (51) and a fixing groove (42); the fixing groove (42) is arranged inside the fixing frame (4) and is evenly arranged around the mounting hole (41); the limit clamping block (5) is connected to the mounting hole (41) through the spring set (51), and the position of the limit clamping block (5) is consistent with the mounting groove (32) arranged around the connecting head (3).

3. The quick-install universal wheel according to claim 2, characterized in that: The outer side of the connector (3) is provided with a limiting groove (31) connected to the installation slot (32), and the limiting groove (31) is used to limit the moving direction of the limiting block 1 (5) during assembly and disassembly.

4. The quick-install universal wheel according to claim 2, characterized in that: The position limiting block 1 (5) is a shape with a central protrusion and narrow upper and lower sides.

5. The quick-install universal wheel according to claim 2, characterized in that: A protrusion (52) is installed at the bottom end of the limit block 1 (5), and the protrusion (52) is consistent with the sliding groove opened at the bottom end of the fixing frame (4).

6. The quick-install universal wheel according to claim 1, characterized in that: A bearing (33) and a connecting rotating head (11) are installed between the connecting head (3) and the wheel frame (1); the top end of the connecting rotating head (11) is inserted into the bearing (33) and is rotatably connected to the bearing (33); the bearing (33) is fixed at the bottom end of the connecting head (3); and the connecting rotating head (11) is fixed at the top of the wheel frame (1).

7. The quick-install universal wheel according to claim 1, characterized in that: The quick-install assembly comprises a mounting block (61) and a second spring kit (71); a quick-install groove (12) is provided on the inner side of the bottom of the wheel frame (1); the mounting block (61) matches the quick-install groove (12); the second limiting block (7) is connected to the receiving groove of the quick-install groove (12) through the second spring kit (71); and the wheel frame (1) is connected to the mounting block (61) through the second limiting block (7).

8. The quick-install universal wheel according to claim 7, characterized in that: A roller shaft is provided in the middle of the roller (6), and both ends of the roller shaft are connected to the mounting block (61).

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