A universal wheel with easy locking

Abstract

The utility model discloses a kind of universal wheel of being convenient for locking, comprising: universal wheel;Locking block, in the outside of the central rotating shaft of the universal wheel;Locking block opening and closing mechanism, with the opening of the locking block swing connection, the opening and closing of the locking block are carried out;Connecting rod assembly, with the locking block opening and closing mechanism connection, drive locking block opening and closing mechanism to and fro movement;Rotating block, with protruding part, push force is applied to the connecting rod assembly during rotation process;Rotating shaft, bottom end with the rotating block is connected, and upper end extends to equipment rack upper end.The universal wheel of being convenient for locking of the utility model, the rotating shaft at equipment rack place is directly rotated and can complete the locking and unlocking of universal wheel, it is easy to operate, safe in use;Same rotating shaft, rotating block can be simultaneously connected with two groups of connecting rod assembly, and the locking and unlocking of two universal wheels are simultaneously controlled.

Description

Technical Field

[0001] This utility model relates to the field of roller technology, and in particular to a swivel wheel that is easy to lock. Background Technology

[0002] Casters are very common equipment in industrial production and daily life, making it easier to move heavier equipment or furniture. Most casters currently use a foot-operated double brake, requiring one foot to press both brake pedals to stop. This braking method is easy to use on flat ground or with light loads, but it is inconvenient, unsafe, or has poor braking performance when going uphill or carrying heavy loads. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing an easy-to-lock swivel wheel. During the pushing process, the swivel wheel can be locked by manually turning the handle, making it convenient to operate and safe to use.

[0004] The purpose of this utility model is achieved in the following manner: a swivel wheel that is easy to lock, comprising:

[0005] swivel wheels;

[0006] A locking block is located on the outside of the central pivot of the omnidirectional wheel;

[0007] The locking block opening and closing mechanism is oscillatingly connected to the opening of the locking block to open and close the locking block;

[0008] The linkage assembly is connected to the locking block opening and closing mechanism, driving the locking block opening and closing mechanism to move back and forth;

[0009] The rotating block has a protrusion that applies a thrust to the connecting rod assembly during rotation;

[0010] The rotating shaft is connected at its bottom end to the rotating block and extends to the top of the equipment frame.

[0011] As an optional solution of the present utility model, the locking block includes an upper locking block and a lower locking block. One end of the upper locking block and the lower locking block are rotatably connected by a pin, and the other end of the lower locking block is connected to the equipment frame. The openings of the upper locking block and the lower locking block are oscillatingly connected to the locking block opening and closing mechanism. A locking hole matching the central axis of the universal wheel is provided between the upper locking block and the lower locking block.

[0012] The universal wheel of this invention is easy to lock. By rotating the rotating shaft, the angle of the rotating block is adjusted, so that the rotating block applies a thrust to the linkage assembly. The linkage assembly causes the locking block opening and closing mechanism to open and close the locking block, so that the locking block locks or unlocks the central rotating shaft of the universal wheel.

[0013] As an optional solution to the technical solution of this utility model, the locking block opening and closing mechanism includes:

[0014] The swing block is connected to the connecting rod assembly;

[0015] A downward pressure rod is located below the swing block. When the swing block swings, a force is applied to the downward pressure rod, causing the downward pressure rod to move downward.

[0016] The lower pressure block is connected to the lower pressure rod;

[0017] A connecting block is located below the pressing block;

[0018] An opening and closing shaft is connected to the connecting block and rotatably connected to the equipment frame. The opening and closing shaft passes through the opening of the locking block, and the center of the opening and closing shaft located at the opening of the locking block has a minimum distance and a maximum distance from the locking block. The locking block is opened and closed during the rotation of the opening and closing shaft.

[0019] Below the pressing block is a fixing block connected to the equipment frame. The pressing rod passes through the fixing block, and a spring is provided on the pressing rod between the pressing block and the fixing block.

[0020] When the swing block swings, it causes the pressure rod to move. When the swing block swings to the vertical position, the pressure rod moves down to the lowest point. At this time, the pressure block presses down on the connecting block, and the connecting block drives the opening and closing shaft to rotate. The non-circular structure in the middle of the opening and closing shaft rotates to the minimum distance to the opening of the locking block. The locking block holds the center shaft of the universal wheel and locks the universal wheel.

[0021] As an optional solution to the technical solution of this utility model, the connecting rod assembly includes:

[0022] The first connecting rod has one end located on one side of the rotating block;

[0023] The second link has one end connected to the other end of the first link, and the middle part of the second link is hinged to the equipment frame through a connecting block;

[0024] The third link has one end hinged to the other end of the second link; the other end of the third link is connected to the locking block opening and closing mechanism.

[0025] As an optional solution of the present invention, a roller is connected to one end of the first connecting rod near the rotating block. The rotating block has an arc-shaped section, and the roller contacts the arc-shaped section of the rotating block, so that the first connecting rod moves stably when the rotating block rotates.

[0026] As an optional solution to the technical solution of this utility model, the swing block is provided with a pressure ball at one end near the pressure rod.

[0027] As an optional solution to the present invention, the locking block and the locking block opening and closing mechanism are located inside the protective cover.

[0028] The beneficial effects of this utility model are:

[0029] This utility model features an easy-to-lock caster wheel. Locking and unlocking the caster wheel can be completed by simply rotating the pivot at the equipment frame. It is convenient to operate and safe to use. The same pivot and pivot block can be connected to two sets of linkage assemblies at the same time to control the locking and unlocking of two caster wheels simultaneously. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the easily lockable caster wheel of this utility model;

[0032] Figure 2 This is a schematic diagram of the internal structure of the easy-to-lock universal wheel of this utility model after the protective cover has been removed;

[0033] Figure 3 for Figure 2 A schematic diagram of the structure of a center caster wheel with one side wheel removed;

[0034] Figure 4 for Figure 3 A schematic diagram of the structure with the connecting block and locking block removed from one side.

[0035] Figure label:

[0036] 1-Swivel casters;

[0037] 2-Locked block; 201-Upper locked block; 202-Lower locked block;

[0038] 3-Locking block opening and closing mechanism; 301-Swing block; 302-Pressing rod; 303-Pressing block; 304-Connecting block; 305-Opening and closing shaft; 306-Pressing ball; 307-Spring.

[0039] 4-Link assembly; 401-First link; 402-Second link; 403-Third link; 404-Roller;

[0040] 5-Rotating block;

[0041] 6- Rotating shaft;

[0042] 7-Protective cover. Detailed Implementation

[0043] 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.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] A lockable omnidirectional wheel includes: an omnidirectional wheel 1, a locking block 2, a locking block opening and closing mechanism 3, a linkage assembly 4, a rotating block 5, and a rotating shaft 6, wherein: the locking block 2 is located outside the central rotating shaft of the omnidirectional wheel 1; the locking block opening and closing mechanism 3 is oscillatingly connected to the opening of the locking block 2 to open and close the locking block 2; the linkage assembly 4 is connected to the locking block opening and closing mechanism 3 to drive the locking block opening and closing mechanism 3 to move back and forth; the rotating block 5 has a protrusion that applies a thrust to the linkage assembly 4 during rotation; the bottom end of the rotating shaft 6 is connected to the rotating block 5, and the upper end extends to the upper end of the equipment frame.

[0047] Specifically, the locking block 2 includes an upper locking block 201 and a lower locking block 202. One end of the upper locking block 201 and the lower locking block 202 are rotatably connected by a pin. The other end of the lower locking block 202 is fixedly connected to the equipment frame. In this embodiment, the other end of the lower locking block 202 is connected to the protective cover 7. The openings of the upper locking block 201 and the lower locking block 202 are oscillatingly connected to the locking block opening and closing mechanism 3. A locking hole matching the central rotating shaft of the universal wheel 1 is provided between the upper locking block 201 and the lower locking block 202. In the open and closed state, the inner diameter of the locking hole is larger than the diameter of the central rotating shaft of the universal wheel 1, and the central rotating shaft of the universal wheel 1 can rotate freely, and the universal wheel is not locked.

[0048] The easy-to-lock universal wheel of this utility model adjusts the angle of the rotating block 5 by rotating the rotating shaft 6, so that the rotating block 5 applies a thrust to the connecting rod assembly 4, and the connecting rod assembly 4 causes the locking block opening and closing mechanism 3 to open and close the locking block 2, so that the locking block 2 locks or unlocks the central rotating shaft of the universal wheel 1.

[0049] As a further embodiment, the locking block opening and closing mechanism 3 includes: a swing block 301, a pressing rod 302, a pressing block 303, a connecting block 304, and an opening and closing shaft 305. Specifically, the swing block 301 is connected to the linkage assembly 4; the pressing rod 302 is located below the swing block 301, and when the swing block 301 swings, a force is applied to the pressing rod 302, causing the pressing rod 302 to move downward; the pressing block 303 is connected to the pressing rod 302; the connecting block 304 is located below the pressing block 303; the opening and closing mechanism 305 is further described. Shaft 305 is connected to connecting block 304 and rotatably connected to equipment frame. Opening and closing shaft 305 passes through the opening of locking block 2, and the center of opening and closing shaft located at the opening of locking block 2 has a minimum distance and a maximum distance to locking block (2). During the rotation of opening and closing shaft 305, locking block 2 is opened and closed. A fixed block connected to equipment frame is provided below pressing block 303. The pressing rod 202 passes through the fixed block. A spring 307 is provided on the pressing rod 202 between pressing block 303 and fixed block.

[0050] When the swing block 301 swings, it causes the pressing rod 302 to move. When the swing block 301 swings to the vertical position, the pressing rod 302 moves down to the lowest point. At this time, the pressing block 303 presses down on the connecting block 304. The connecting block 304 drives the opening and closing shaft 305 to rotate. The non-circular structure in the middle of the opening and closing shaft 305 rotates to the minimum distance to the opening of the locking block 2. The locking block 2 holds the central shaft of the universal wheel 1 and locks the universal wheel 1.

[0051] As a further embodiment, the linkage assembly 4 includes: a first linkage 401, a second linkage 402, and a third linkage 403, wherein: one end of the first linkage 401 is located on one side of the rotating block 5; one end of the second linkage 402 is connected to the other end of the first linkage 401, and the middle part of the second linkage 402 is hinged to the equipment frame through a connecting block; one end of the third linkage 403 is hinged to the other end of the second linkage 402; and the other end of the third linkage 403 is connected to the locking block opening and closing mechanism 3.

[0052] During the rotation of the rotating block 5, the protruding part of the rotating block pushes out the first connecting rod 401, the first connecting rod 401 causes the second connecting rod 402 to swing, the second connecting rod 402 pulls the third connecting rod 403, thereby causing the swing block 301 connected to the third connecting rod 403 to swing.

[0053] The first connecting rod 401 is connected to a roller 404 at one end near the rotating block 5. The rotating block 5 has an arc-shaped section, and the roller 404 contacts the arc-shaped section of the rotating block 5 to facilitate the rotation of the rotating block 5 and avoid jamming, so as to make the first connecting rod 401 move stably. The swing block 301 is provided with a pressure ball 306 at one end near the pressure rod 302, so that the pressure ball 306 contacts the arc surface of the pressure rod 302, which facilitates the smooth swing of the swing block 301.

[0054] Locking block 2 and locking block opening and closing mechanism 3 are located inside protective cover 7 to protect the parts from damage and also to ensure the safety of the staff.

[0055] The locking process of this utility model's easy-to-lock omnidirectional wheel:

[0056] When locking is required, rotating the rotating shaft 6 causes the rotating block 5 connected to its lower end to rotate. Since the rotating block 5 is not circular, its protruding part will move against the first connecting rod 401 during rotation. In this embodiment, the rotating block 5 has two blades with arc-shaped surfaces. The contact section between the first connecting rod 401 and the rotating block 5 is provided with a roller 404, which contacts the arc-shaped surfaces of the blades. The two blades can simultaneously control the linkage assembly 4 of the two universal wheels to move. The first connecting rod 401 moves, pushing the bottom of the second connecting rod 402. The middle of the second connecting rod 402... The part is hinged to the equipment frame through the connecting block, causing the second connecting rod 402 to rotate around the hinge. The upper end of the second connecting rod 402 pulls the third connecting rod 403, and the third connecting rod 403 pulls the swing block 301, making the swing block 301 vertical. The pressure ball 306 below the swing block 301 presses the pressure rod 302 downward. The pressure block 303 at the lower end of the pressure rod 302 presses down the connecting block 304. The connecting block 304 drives the opening and closing shaft 305 to rotate, so that the minimum distance of the non-circular structure in the middle of the opening and closing shaft 305 rotates to the opening of the locking block 2. The locking block 2 grips the central shaft of the universal wheel 1 and locks the universal wheel 1. When unlocking is required, the rotating shaft is rotated in the opposite direction, causing the rotating block to rotate. The first link 401, the second link 402, and the third link 403 return to their original positions. The swing block 301 tilts, and under the rebound force of the spring 307, the pressing rod 302 rises. The connecting block 304 returns to its original position, causing the non-circular structure in the middle of the opening and closing shaft 305 to rotate to its maximum distance to the opening of the locking block 2. This releases the central rotating shaft of the universal wheel 1, allowing the universal wheel to resume rotation.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A locking facilitating universal wheel, characterized by, include: omnidirectional wheel (1); The locking block (2) is located on the outside of the central pivot of the universal wheel (1); The locking block opening and closing mechanism (3) is oscillatingly connected to the opening of the locking block (2) to open and close the locking block (2); The linkage assembly (4) is connected to the locking block opening and closing mechanism (3) and drives the locking block opening and closing mechanism (3) to move back and forth; The rotating block (5) has a protrusion that applies a thrust to the connecting rod assembly (4) during rotation; The rotating shaft (6) is connected at its bottom end to the rotating block (5) and extends at its top end to the upper end of the equipment frame.

2. A locking easy wheel according to claim 1, characterized in that, The locking block (2) includes an upper locking block (201) and a lower locking block (202). One end of the upper locking block (201) and the lower locking block (202) are rotatably connected by a pin. The other end of the lower locking block (202) is connected to the equipment frame. The openings of the upper locking block (201) and the lower locking block (202) are oscillatingly connected to the locking block opening and closing mechanism (3). A locking hole matching the central shaft of the universal wheel (1) is provided between the upper locking block (201) and the lower locking block (202).

3. A locking easy wheel according to claim 1, characterized in that, The locking block opening and closing mechanism (3) includes: The swing block (301) is connected to the connecting rod assembly (4); The lowering rod (302) is located below the swing block (301). When the swing block (301) swings, it applies force to the lowering rod (302) to make the lowering rod (302) move downward. The lower pressure block (303) is connected to the lower pressure rod (302); A connecting block (304) is located below the pressing block (303); The opening and closing shaft (305) is connected to the connecting block (304) and rotatably connected to the equipment frame. The opening and closing shaft (305) passes through the opening of the locking block (2), and the center of the opening and closing shaft located at the opening of the locking block (2) has a minimum distance and a maximum distance to the locking block (2). The locking block (2) is opened and closed during the rotation of the opening and closing shaft (305). The lower pressure block (303) is provided with a fixed block connected to the equipment frame. The lower pressure rod (302) passes through the fixed block. A spring (307) is provided on the lower pressure rod (302) between the lower pressure block (303) and the fixed block.

4. A lockable caster wheel according to claim 1, characterized in that, The link assembly (4) includes: The first connecting rod (401) has one end located on one side of the rotating block (5); The second link (402) has one end connected to the other end of the first link (401), and the middle part of the second link (402) is hinged to the equipment frame through a connecting block; The third link (403) has one end hinged to the other end of the second link (402); the other end of the third link (403) is connected to the locking block opening and closing mechanism (3).

5. A lockable caster wheel according to claim 4, characterized in that, The first connecting rod (401) is connected to a roller (404) at one end near the rotating block (5). The rotating block (5) has an arc-shaped section, and the roller (404) contacts the arc-shaped section of the rotating block (5).

6. A lockable caster wheel according to claim 3, characterized in that, The swing block (301) has a pressure ball (306) at one end near the pressure rod (302).

7. A lockable caster wheel according to claim 1, characterized in that, The locking block (2) and the locking block opening and closing mechanism (3) are located inside the protective cover (7).

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