A quick installation assembly and universal caster

Abstract

The present invention discloses a quick installation component and a universal caster, comprising: a hollow shell, the hollow shell is slidably matched with the installation port, and the hollow shell is provided with at least two openings; a stop element, the stop element is slidably matched with the hollow shell; an elastic component, the elastic component acts on the stop element to give the stop element an elastic force to extend out of the opening; wherein, when the hollow shell is inserted into the installation port, the stop element extends from the opening under the action of the elastic component, and the stop element is clamped with the outer wall of the installation port. Under the action of the elastic component, the stop element is exposed outside the opening of the hollow shell and is clamped with the outer edge of the installation port, so that quick installation is achieved. Compared with the prior art, the user can install the quick installation component on the mobile device without the aid of external installation tools such as handles, screwdrivers, etc., and the operation is simple.

Description

Technical Field

[0001] The invention relates to the technical field of casters, and in particular to a quick-installation component and a universal caster. Background Art

[0002] Casters are a common mechanical accessory, usually installed at the bottom of carts, medical carts, furniture, mechanical equipment, etc. to facilitate the movement of objects. When the object moves and turns, the caster rotation system needs to rotate to achieve an easy and labor-saving effect.

[0003] In the prior art, the casters are locked to the mobile device by bolts and nuts, which makes installation and disassembly of the casters and the mobile device inconvenient. Summary of the invention

[0004] The first object of the present invention is to provide a quick installation assembly, which has a simple structure and is conducive to improving installation efficiency.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A quick installation assembly is applied to a universal caster, and the quick installation assembly is assembled into a mounting opening of a mobile device, and is characterized by comprising:

[0007] A hollow shell, wherein the hollow shell is slidably matched with the mounting opening, and the hollow shell is provided with at least two openings;

[0008] a stop element, the stop element being slidably engaged with the hollow shell;

[0009] an elastic component, the elastic component acting on the stop element to impart elastic force to the stop element to extend out of the opening;

[0010] Wherein, when the hollow shell is inserted into the installation opening, the stopping element extends out from the opening under the action of the elastic component, and the stopping element is clamped with the outer side wall of the installation opening.

[0011] Preferably, the quick installation assembly further comprises:

[0012] A connecting block, the connecting block is slidably matched with the hollow shell;

[0013] The elastic component comprises:

[0014] a first elastic member; and

[0015] a second elastic member, wherein one end of the first elastic member and one end of the second elastic member are elastically connected to two ends of the connecting block respectively;

[0016] The stop element comprises:

[0017] a first stopper; and

[0018] The second stopper, the first stopper and the second stopper are elastically connected to the other end of the first elastic member and the other end of the second elastic member respectively.

[0019] More preferably, a through hole is provided on the hollow shell, the connecting block is inserted into the through hole, and can form a moving pair with the hollow shell; further preferably, it also includes a reset spring arranged along the sliding direction of the connecting block, one end of the reset spring abuts against the connecting block, and the other end abuts against the inner wall of the hollow shell, and the reset spring plays a role of elastic support, which can control the moving distance of the connecting block on the one hand, and enable the connecting block to be automatically reset on the other hand.

[0020] More preferably, both the first elastic member and the second elastic member are leaf springs; further preferably, the leaf spring is a curved leaf spring. Under the condition of the same elastic deformation, the curved leaf spring requires a smaller arrangement space, thereby improving the compactness of the structure.

[0021] Preferably, rounded corners are provided at positions where the first stopper and the second stopper are clamped with the outer side wall of the installation opening respectively.

[0022] More preferably, the outer side of the first stopper is provided with a first inclined surface, the inclination of the first inclined surface gradually increases along the insertion direction of the hollow shell, and the rounded corner is provided at the position where the inclination of the first inclined surface is the largest;

[0023] A second inclined surface is provided on the outer side of the second stop member, the inclination of the second inclined surface gradually increases along the insertion direction of the hollow shell, and the chamfered corner is provided at the position where the inclination of the second inclined surface is the largest; the chamfered corner can improve the fit between the first stop member, the second stop member and the outer side wall of the installation port, thereby ensuring the clamping force.

[0024] Preferably, it also includes:

[0025] A pull ring is installed on the connecting block.

[0026] Preferably, it also includes:

[0027] a plurality of first latches, through which one end of the first elastic member and one end of the second elastic member are connected to the connection block; and

[0028] A plurality of second latches, the other end of the first elastic member and the other end of the second elastic member are connected to the first stop member and the second stop member respectively through the second latches.

[0029] More preferably, both ends of the first elastic member are bent to form first hook portions, and the side portion of the connecting block is recessed inwardly with a first depression for installing the first pin; both ends of the second elastic member are bent to form second hook portions, and the inner sides of the first stop member and the second stop member are recessed inwardly with second depressions for installing the second pin, one of the first hook portions of the first elastic member is hooked on the first pin, and the other first hook portion is hooked on the second pin, and one of the second hook portions of the second elastic member is hooked on the first pin, and the other second hook portion is hooked on the second pin.

[0030] Preferably, the hollow shell is provided with:

[0031] a plurality of first slots, each of which corresponds to one end of each of the first latches, and one end of each of the first latches is movably connected to an inner wall of each of the first slots; and

[0032] A plurality of second slots, each of which corresponds to one end of each of the second latches, and one end of each of the second latches is movably connected to the inner wall of each of the second slots.

[0033] More preferably, the first recess is provided with a first through hole on a side close to the first slot, one end of the first pin passes through the first through hole and is slidably connected to the inner wall of the first slot at the end; the second recess is provided with a second through hole on a side close to the second slot, one end of the second pin passes through the second through hole and is slidably connected to the inner wall of the second slot at the end; the first slot and the second slot serve as limiting guides, which can prevent the connecting block and the hollow shell from tilting during the sliding process on the one hand, and avoid elastic deformation errors between the first elastic member and the second elastic member on the other hand, thereby improving the synchronization of the movement of the first stop member and the second stop member, thereby improving the smoothness of plugging and unplugging the hollow shell and the mounting port of the mobile device.

[0034] Preferably, it also includes:

[0035] The cover plate is provided with:

[0036] a plurality of third slots, each of the third slots corresponding to the other end of each of the first latches, and the other end of each of the first latches being movably connected to the inner wall of each of the third slots; and

[0037] A plurality of fourth slots, each of the fourth slots corresponds to the other end of each of the second latches, and the other end of each of the second latches is movably connected to the inner wall of each of the fourth slots.

[0038] More preferably, the first recess is provided with a third through hole on a side close to the third slot, and the other end of the first latch passes through the third through hole and is slidably connected to the inner wall of the third slot at the end; the second recess is provided with a fourth through hole on a side close to the fourth slot, and one end of the second latch passes through the fourth through hole and is slidably connected to the inner wall of the fourth slot at the end.

[0039] The second object of the present invention is to provide a universal caster that can be quickly assembled and disassembled with a mobile device through a quick assembly assembly.

[0040] A universal caster comprises the quick installation assembly.

[0041] The beneficial effects of the present invention are: when the hollow shell is inserted into the installation port, the edge of the installation port squeezes the stop element, and the squeezing force exerted on the stop element is greater than the elastic force given by the elastic component, causing the stop element to slide into the inner cavity of the hollow shell. At this time, the elastic component is compressed until the stop element is completely inserted into the installation port, that is, when the edge of the installation port no longer squeezes the stop element, the elastic component is released and gives the stop element an elastic force to extend out of the hollow shell. Under the action of the elastic component, the stop element is exposed outside the opening of the hollow shell and clamped with the outer edge of the installation port to achieve quick installation. Compared with the prior art, the user can install the quick installation component on the mobile device without the aid of external installation tools such as handles, screwdrivers, etc., and the operation is simple.

[0042] The present invention also has the following advantages: (1) the first elastic member and the second elastic member are pulled synchronously by the connecting block, and the first elastic member and the second elastic member pull the first stopper and the second stopper respectively, and the first stopper and the second stopper retract into the hollow shell, thereby realizing quick disassembly; (2) the first stopper and the second stopper have a high degree of fit with the outer wall of the installation opening, thereby ensuring the clamping force; (3) the connecting block can be pulled synchronously by pulling the pull ring, which is convenient for users to use; (4) the two ends of the first elastic member are respectively connected to the connecting block and the first stopper by the first pin, and the two ends of the second elastic member are respectively connected to the connecting block and the second stopper by the second pin, and the connection is firm and will not hinder the movement between the first stopper, the second stopper and the connecting block.

[0043] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0045] Figure 1 It is a structural schematic diagram of a quick installation component and a universal caster with the quick installation component in the present invention;

[0046] Figure 2 A schematic longitudinal section diagram of a quick installation assembly and a quick installation assembly of a universal caster having the quick installation assembly in the present invention;

[0047] Figure 3 for Figure 2 A in the enlarged view;

[0048] Figure 4 The invention discloses a vertical cross-sectional schematic diagram of a caster assembly of a quick-install and quick-detach caster.

[0049] As shown in the figure: 1-Quick installation components;

[0050] 11-hollow shell, 111-opening, 112-through hole, 113-first slot, 114-second slot, 115-assembly notch, 116-cover plate;

[0051] 12-stop element, 121-first stopper, 1211-first inclined surface, 1212-second recess, 122-second stopper, 1221-second inclined surface;

[0052] 13-elastic component, 131-first elastic member, 132-second elastic member;

[0053] 14-connecting block, 141-first recess;

[0054] 15-return spring;

[0055] 16-Pull ring;

[0056] 17- first latch;

[0057] 18- second latch;

[0058] 2-caster assembly, 21-top plate, 22-bracket, 23-rotating assembly, 231-bearing sleeve cover, 232-first steel ball, 233-wave plate, 234-second steel ball, 235-rivet, 24-wheel. DETAILED DESCRIPTION

[0059] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0060] See also Figure 1-Figure 4 In this embodiment, a quick installation assembly is applied to a universal caster, and the quick installation assembly is assembled into a mounting port of a mobile device, and is characterized in that it includes:

[0061] A hollow shell 11, wherein the hollow shell 11 is slidably matched with the mounting opening, and the hollow shell 11 is provided with at least two openings 111;

[0062] A stop element 12, wherein the stop element 12 is slidably matched with the hollow shell 11;

[0063] an elastic component 13, the elastic component 13 acts on the stop element 12 to give the stop element 12 an elastic force to extend out of the opening 111;

[0064] When the hollow shell 11 is inserted into the installation opening, the stop element 12 extends out from the opening 111 under the action of the elastic component 13 , and the stop element 12 is clamped with the outer side wall of the installation opening.

[0065] In this embodiment, the left and right ends of the hollow shell 11 are respectively provided with openings 111. When the hollow shell 11 is inserted into the installation opening, the edge of the installation opening squeezes the stop element 12, and the squeezing force on the stop element 12 is greater than the elastic force given by the elastic component 13, so that the stop element 12 slides toward the inner cavity of the hollow shell 11. At this time, the elastic component 13 is compressed until the stop element 12 completely penetrates into the installation opening, that is, when the edge of the installation opening no longer squeezes the stop element 12, the elastic component 13 is released and gives the stop element 12 an elastic force to extend out of the hollow shell 11. Under the action of the elastic component 13, the stop element 12 is exposed outside the opening of the hollow shell 11 and clamped with the outer edge of the installation opening, so as to achieve quick installation. Compared with the prior art, the user can install the quick installation component on the mobile device without the help of external installation tools such as handles, screwdrivers, etc., and the operation is simple.

[0066] Preferably, the quick installation assembly further comprises:

[0067] A connecting block 14, wherein the connecting block 14 is slidably matched with the hollow shell 11;

[0068] The elastic component 13 includes:

[0069] A first elastic member 131; and

[0070] A second elastic member 132, one end of the first elastic member 131 and one end of the second elastic member 132 are elastically connected to two ends of the connecting block 14 respectively;

[0071] The stop element 12 comprises:

[0072] A first stopper 121; and

[0073] The second stopper 122 , the first stopper 121 and the second stopper 122 are elastically connected to the other end of the first elastic member 131 and the other end of the second elastic member 132 respectively.

[0074] In this embodiment, the first stopper 121 is disposed on the opening 111 near the left end of the hollow shell 11 , the second stopper 122 is disposed on the opening 111 near the right end of the hollow shell 11 , and the connecting block 14 is located between the first stopper 121 and the second stopper 122 .

[0075] More preferably, a through hole 112 is provided on the hollow shell 11, and the connecting block 14 is penetrated through the through hole 112 and can form a moving pair with the hollow shell 11; further preferably, it also includes a reset spring 15 arranged along the sliding direction of the connecting block 14, one end of the reset spring 15 abuts against the connecting block 14, and the other end abuts against the inner wall of the hollow shell 11, and the reset spring 15 plays a role of elastic support, which can control the moving distance of the connecting block 14 on the one hand, and enable the connecting block 14 to be automatically reset on the other hand.

[0076] In this embodiment, the longitudinal section of the connecting block 14 is in an I-shape, and a plug-in column for coaxially fixing the reset spring 15 is formed at the bottom of the connecting block 14 .

[0077] More preferably, both the first elastic member 131 and the second elastic member 132 are leaf springs; further preferably, the leaf spring is a curved leaf spring. Under the condition of the same elastic deformation, the curved leaf spring requires a smaller arrangement space, thereby improving the compactness of the structure.

[0078] Preferably, rounded corners are provided at the positions where the first stopper 121 and the second stopper 122 are clamped with the outer side wall of the installation opening respectively.

[0079] More preferably, the outer side of the first stopper 121 is provided with a first inclined surface 1211, the inclination of the first inclined surface 1211 gradually increases along the insertion direction of the hollow shell 11, and the rounded corner is provided at the position where the inclination of the first inclined surface 1211 is the largest;

[0080] The outer side of the second stop member 122 is provided with a second inclined surface 1221, the inclination of the second inclined surface 1221 gradually increases along the insertion direction of the hollow shell 11, and the chamfered corner is arranged at the position where the inclination of the second inclined surface 1221 is the largest; the chamfered corner can improve the fit between the first stop member 121, the second stop member 122 and the outer side wall of the installation port, thereby ensuring the clamping force.

[0081] Preferably, it also includes:

[0082] A pull ring 16 is installed on the connecting block 14 .

[0083] In this embodiment, preferably, it also includes:

[0084] two first latches 17, one end of the first elastic member 131 and one end of the second elastic member 132 are both connected to the connection block 14 through the first latches 17; and

[0085] Two second latches 18 , the other end of the first elastic member 131 and the other end of the second elastic member 132 are connected to the first stopper 121 and the second stopper 122 respectively through the second latches 18 .

[0086] More preferably, the two ends of the first elastic member 131 are respectively bent to form a first hook portion, and the side portion of the connecting block 14 is inwardly recessed with a first recess 141 for installing the first pin 17; the two ends of the second elastic member 132 are respectively bent to form a second hook portion, and the inner sides of the first stop member 121 and the second stop member 122 are respectively inwardly recessed with a second recess 1212 for installing the second pin 18, one of the first hook portions of the first elastic member 131 is hooked on the first pin 17, and the other first hook portion is hooked on the second pin 18, and one of the second hook portions of the second elastic member 132 is hooked on the first pin 17, and the other second hook portion is hooked on the second pin 18.

[0087] In this embodiment, preferably, the hollow shell 11 is provided with:

[0088] Two first slots 113 , each of the first slots 113 corresponds to one end of each of the first latches 17 , and one end of each of the first latches 17 is movably connected to the inner wall of each of the first slots 113 ; and

[0089] Two second slots 114, each second slot 114 corresponds to one end of each second latch 18, and one end of each second latch 18 is movably connected to the inner wall of each second slot 114. In this embodiment, the first slot 113 is arranged along the moving direction of the connecting block 14, and the second slot 114 is arranged along the moving direction of the first stopper 121 and the second stopper 122, which can avoid interference with the first stopper 121 or the second stopper 122 that moves synchronously during the movement of the connecting block 14, and the structural design is reasonable.

[0090] More preferably, the first recess 141 is provided with a first through hole on a side close to the first slot 113, and one end of the first latch 17 passes through the first through hole and is slidably connected to the inner wall of the first slot 113 at the end; the second recess 1212 is provided with a second through hole on a side close to the second slot 114, and one end of the second latch 18 passes through the second through hole and is slidably connected to the inner wall of the second slot 114 at the end; the first slot 113 and the second slot 114 play a role of limiting guides, which can prevent the connecting block 14 and the hollow shell 11 from tilting during the sliding process on the one hand, and avoid the elastic deformation error between the first elastic member 131 and the second elastic member 132 on the other hand, thereby improving the synchronization of the movement of the first stop member 121 and the second stop member 122, thereby improving the smoothness of plugging and unplugging the hollow shell 11 and the mounting port of the mobile device.

[0091] Preferably, it also includes:

[0092] The cover plate 116 is provided with:

[0093] Two third slots, each of the third slots corresponds to the other end of each of the first latches 17, and the other end of each of the first latches 17 is movably connected to the inner wall of each of the third slots; and

[0094] Two fourth slots, each of the fourth slots corresponds to the other end of each of the second latches 18, and the other end of each of the second latches 18 is movably connected to the inner wall of each of the fourth slots.

[0095] More preferably, the first recess 141 is provided with a third through hole on a side close to the third slot, and the other end of the first latch 17 passes through the third through hole and is slidably connected to the inner wall of the third slot at the end; the second recess 1212 is provided with a fourth through hole on a side close to the fourth slot, and one end of the second latch 18 passes through the fourth through hole and is slidably connected to the inner wall of the fourth slot at the end.

[0096] In this embodiment, please refer to Figure 2The side of the hollow shell 11 is provided with an assembly notch 115 for assembly, and the cover plate 116 can cover the assembly notch 115 and be detachably connected to the hollow shell 11. The hollow shell 11 and the top plate 21 of the caster assembly 2 are integrally formed; the assembly process: firstly, the first stopper 121 and the second stopper 122 are respectively passed through the assembly notch 115, and are correspondingly placed on the left and right sides of the hollow shell 11, and the first and second latches 18 are inserted into the second slots 114, and then the connecting block 14 is passed through the middle The through hole 112 of the empty shell body 11 is inserted into the first slot 113, and then one of the first hook portions of the first elastic member 131 is hooked on the first latch 17, and the other first hook portion is hooked on the second latch 18, and one of the second hook portions of the second elastic member 132 is hooked on the first latch 17, and the other second hook portion is hooked on the second latch 18, and then the return spring 15 is passed through the plug-in column, and finally the cover plate 116 is closed to complete the assembly of the quick installation component.

[0097] This embodiment also provides a universal caster, including the quick installation assembly. In this embodiment, the universal caster also includes:

[0098] The caster assembly 2 includes a top plate 21 ; the hollow shell 11 is arranged on the top surface of the top plate 21 .

[0099] Preferably, the caster assembly 2 further includes:

[0100] A bracket 22, wherein the bracket 22 is disposed on the bottom surface of the top plate 21;

[0101] A rotating assembly 23, wherein the bracket 22 is rotatably connected to the top plate 21 via the rotating assembly 23;

[0102] The rotating assembly 23 further includes:

[0103] A bearing cover 231, the bearing cover 231 is disposed on the top of the bracket 22, and a first annular track is opened on a side close to the bracket 22, and a plurality of first steel balls 232 are arranged in the first annular track;

[0104] A wave plate 233, the wave plate 233 is disposed at the bottom of the bracket 22, and a second annular track is opened on a side close to the bracket 22, and a plurality of second steel balls 234 are arranged in the second annular track;

[0105] Rivets 235 pass through the top plate 21, the bearing cover 231, the bracket 22, and the wave cover in order from top to bottom, and are fixed by riveting;

[0106] The wheel 24 is rotatably connected to the bottom of the bracket 22 .

[0107] In this embodiment, please refer to Figure 4 The assembly process of the caster assembly 2 is as follows: first, the bearing cover sleeve, the first steel ball 232, the bracket 22, the first washer (not marked in the figure), the second steel ball 234, the wave plate 233, and the second washer (not marked in the figure) are stacked in sequence from the bottom of the base plate, and fixed by rivet 235, and finally the wheel 24 is mounted on the bracket 22 by bolts to complete the assembly of the caster assembly 2.

[0108] In this embodiment, the assembly process of the universal caster with a quick installation component is as follows: first, align the insertion end of the hollow shell 11 with the installation port of the mobile device, and then push the top plate 21. At this time, the edge of the installation port is slidably matched with the first inclined surface 1211 and the second inclined surface 1221, and the first stop member 121 and the second stop member 122 are squeezed to move inward respectively, and the first elastic member 131 and the second elastic member 132 are squeezed. After the hollow shell 11 passes through the installation port, the first elastic member 131 and the second elastic member 132 are released, and the first stop member 121 and the second stop member 122 are driven to move outward respectively, thereby completing the installation of the universal caster; when disassembling, pull the pull ring 16, the connecting block 14 slides outward relative to the hollow shell 11, at which time the reset spring 15 is compressed and the first elastic member 131 and the second elastic member 132 are elastically deformed respectively, and drive the first stop member 121 and the second stop member 122 to move inward respectively. When the first stop member 121 and the second stop member 122 are retracted into the inner cavity of the hollow shell 11, the hollow shell 11 is pulled out, thereby completing the disassembly of the universal caster, and finally releasing the pull ring 16, the reset spring 15 is released, and drives the connecting block 14 to move inward, and at the same time the first elastic member 131 and the second elastic member 132 restore their shapes, and drive the first stop member 121 and the second stop member 122 to move outward.

[0109] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A quick installation assembly, applied to a universal caster, and the quick installation assembly is assembled into a mounting opening of a mobile device, characterized in that: include: A hollow shell, wherein the hollow shell is slidably matched with the mounting opening, and the hollow shell is provided with at least two openings; a stop element, the stop element being slidably engaged with the hollow shell; an elastic component, the elastic component acting on the stop element to impart elastic force to the stop element to extend out of the opening; Wherein, when the hollow shell is inserted into the installation opening, the stop element extends from the opening under the action of the elastic component, and the stop element is clamped with the outer side wall of the installation opening; The quick installation component also includes: A connecting block, the connecting block is slidably matched with the hollow shell; The elastic component comprises: a first elastic member; and a second elastic member, wherein one end of the first elastic member and one end of the second elastic member are elastically connected to two ends of the connecting block respectively; The stop element comprises: a first stopper; and A second stopper, wherein the first stopper and the second stopper are elastically connected to the other end of the first elastic member and the other end of the second elastic member respectively; The hollow shell is provided with a through hole, the connecting block is passed through the through hole and can form a moving pair with the hollow shell; it also includes a return spring arranged along the sliding direction of the connecting block, one end of the return spring abuts against the connecting block and the other end abuts against the inner wall of the hollow shell.

2. A quick installation assembly according to claim 1, characterized in that: The positions where the first stopper and the second stopper are clamped with the outer side wall of the installation opening are both provided with rounded corners.

3. A quick installation assembly according to claim 1, characterized in that: Also includes: A pull ring is installed on the connecting block.

4. A quick installation assembly according to claim 1, characterized in that: Also includes: a plurality of first latches, one end of the first elastic member and one end of the second elastic member are both connected to the connection block through the first latches; as well as A plurality of second latches, the other end of the first elastic member and the other end of the second elastic member are connected to the first stop member and the second stop member respectively through the second latches.

5. A quick installation assembly according to claim 4, characterized in that: The hollow shell is provided with: a plurality of first slots, each of which corresponds to one end of each of the first latches, and one end of each of the first latches is movably connected to an inner wall of each of the first slots; and A plurality of second slots, each of which corresponds to one end of each of the second latches, and one end of each of the second latches is movably connected to the inner wall of each of the second slots.

6. A quick installation assembly according to claim 5, characterized in that: Also includes: The cover plate is provided with: a plurality of third slots, each of the third slots corresponding to the other end of each of the first latches, and the other end of each of the first latches being movably connected to the inner wall of each of the third slots; and A plurality of fourth slots, each of the fourth slots corresponds to the other end of each of the second latches, and the other end of each of the second latches is movably connected to the inner wall of each of the fourth slots.

7. A universal caster, characterized in that: It comprises the quick installation assembly as described in any one of claims 1 to 6.

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