Mute universal wheel

Abstract

The utility model discloses a mute universal wheel. A sealing cover is fixed on the bottom surface of a top connecting plate; a wheel body bracket is arranged at the lower part of the top connecting plate, a wheel body supporting part extends from the side part of the wheel body bracket, and a wheel body is arranged on the wheel body supporting part; a bearing supporting groove is formed in the top of the wheel body bracket, a bearing assembly is arranged in the bearing supporting groove, and the top connecting plate, the sealing cover, the bearing supporting groove and the wheel body bracket are locked into a whole through rivets or bolt assemblies. After the arrangement, the bearing assembly is arranged on the top surface of the wheel body bracket and is sealed at the upper part by adopting the sealing cover, so that the bearing assembly can be effectively hidden, external impurities are prevented from entering the inner part, the failure rate of the bearing assembly is effectively reduced, the steering is smoother, and the noise is effectively eliminated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mobile vehicle accessory technical field, concretely relates to a mute universal wheel. BACKGROUND

[0002] In the material cart technical field, the existing mobile wheel applied in the field is mostly the ordinary 360-degree rotating universal wheel, the universal wheel is flexible in steering, stable and good in direction, and all the use advantages can be embodied in actual application. However, in order to realize the advantages of easy maintenance and low cost, the ball structure of the universal wheel is mostly designed in an external leakage type, the structure is good in maintenance and easy to assemble, but the external dust and dirt is easy to enter, and when steering, the side force is large, which can easily lead to the increase of the noise of the outer ball, and affect the product quality.

[0003] In order to improve the above problems, in recent years, the technical personnel in the field have tried to design the universal wheel with bearing structure, but the bearing assembly of the universal wheel is close to the design of the mobile wheel body, which can easily guide the impurities at the bottom into the bearing assembly, causing the damage of the bearing, and after the damage of the bearing, the whole bearing must be disassembled, and professional tools are needed in the disassembly, which affects the maintenance and popularization of the product.

[0004] In view of the defects in the prior art, as the technical personnel in the field, it is necessary to design a mute universal wheel, which can realize the smooth steering of the bearing, realize the mute, and effectively avoid the failure of the bearing. SUMMARY

[0005] In order to overcome the defects in the prior art, the utility model provides a mute universal wheel, which hides the bearing assembly by setting the bearing steering structure, effectively reduces the risk of being invaded by external impurities, reduces the failure rate, and ensures the stability of operation.

[0006] In order to realize the above technical purpose, the utility model adopts the following scheme: a mute universal wheel, which comprises a top connecting plate, a sealing cover is fixed on the bottom surface of the top connecting plate; a wheel body bracket is arranged at the lower part of the top connecting plate, the side part of the wheel body bracket extends a wheel body support part, the wheel body support part is provided with a wheel body; a bearing support groove is arranged at the top of the wheel body bracket, a bearing assembly is arranged in the bearing support groove, and the top connecting plate, the sealing cover, the bearing support groove and the wheel body bracket are locked into one body by rivets or bolt assemblies.

[0007] The bearing support groove and the wheel body bracket are extruded and fixed into one body, which comprises a groove body and a bottom covering section, and the bottom covering section is extruded and fixed into one body with the through hole on the wheel body bracket.

[0008] The inside of the wheel body bracket is provided with a brake locking piece at the lower part of the bearing support groove, and the brake locking piece is provided with a brake positioning area; a brake piece is arranged below the wheel body support part in cooperation with the brake locking piece, and the brake piece is provided with a positioning plug plate towards the brake locking piece, and when the brake piece is pressed onto the wheel body, the positioning plug plate is inserted into the brake positioning hole.

[0009] The utility model discloses beneficial effect is: the utility model discloses through above structural setting, its bottom surface on top connecting plate is fixed with seal cover, the lower part of top connecting plate is provided with wheel body bracket, and the side portion of wheel body bracket extends wheel body support part, and wheel body support part is provided with wheel body, the top of wheel body bracket is provided with bearing support groove, and bearing support groove is provided with bearing assembly, and top connecting plate, seal cover, bearing support groove and wheel body bracket are locked to an entirety through rivet or bolt component, after above setting, bearing assembly is set on the top surface of wheel body bracket, and adopts seal cover and seals it in the upper portion, can effectively hide bearing assembly, avoids the impurity of outside and enters to the inside, effectively reduces its failure rate, makes the steering more smooth, effectively eliminates the noise.

[0010] The utility model discloses still extend design has the brake locking piece and blocks the part that wheel body and bearing assembly can intercommunicate, realizes the sealing isolation of bearing group at the bottom, and when brake piece is pressed onto the wheel body, positioning plug plate is inserted into brake positioning hole and carries out the steering lock function of synchronous brake. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the three-dimensional structure diagram of the utility model Figure I ;

[0012] Figure 2 It is the three-dimensional structure diagram of the utility model Figure II ;

[0013] Figure 3 It is the internal structure diagram of the utility model from the main view;

[0014] Figure 4 It is the internal structure diagram of the utility model from the section;

[0015] Figure 5 It is Figure 4 The enlarged diagram of the structure of area A in the utility model;

[0016] In the drawings, 1, top connecting plate, 11, sealing cover, 2, wheel body bracket, 21, wheel body support part, 22, locking pedal support rod, 3, wheel body, 4, locking pedal, 41, upper assembly, 42, upper force applying convex point, 43, lower assembly, 44, brake pad, 441, brake pad hinged seat, 45, positioning plugboard, 5, brake locking piece, 51, brake positioning groove, 6, bearing support groove, 61, groove body, 62, bottom covering section, 63, top turnup, 7, bearing, 8, gasket. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model will be further described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0018] As shown in the drawings, a mute universal wheel comprises a top connecting plate 1, a sealing cover 11 is welded and fixed downward on the bottom surface of the top connecting plate 1; a wheel body bracket 2 is arranged on the lower part of the top connecting plate 1, the side part of the wheel body bracket 2 extends a wheel body support part 21, and a wheel body 3 is arranged on the wheel body support part 21; a bearing support groove 6 is arranged on the top part of the wheel body bracket 2, the bearing support groove 6 is extruded and fixed to be integrated with the top surface of the wheel body bracket 2, and the bearing support groove 6 comprises a groove body 61 on the top part and a bottom covering section 62, the bottom covering section 62 is extruded and fixed to be integrated with the through hole on the wheel body bracket 2, and the structure design can realize the integrated molding of the bearing support groove 6 and the wheel body bracket 2 through a punching equipment. Figure 4 、 5 The top turnup 63 is arranged on the top part of the groove body 61 towards the inside, the setting purpose is to stably fix the bearing after being placed into, and the bearing is prevented from moving up and down, and the permanent sealing of the bearing group can be realized by cooperating with the covering of the sealing cover 11 from the upper part.

[0019] After the above structure is arranged, the top connecting plate 1, the sealing cover 11, the bearing support groove 6 and the wheel body bracket 2 are locked to be integrated through a rivet. After being locked, the smooth rotation of the top connecting plate 1 on the wheel body bracket 2 can be realized. The noise is effectively eliminated.

[0020] Further, the inside of the wheel body bracket 2 is provided with a circular brake locking piece 5 below the bearing support groove 6, a plurality of brake positioning grooves 51 are uniformly arranged on the outer diameter of the brake locking piece 5 as brake positioning areas; the brake locking piece 5 is provided with a brake pad 44 below the wheel body support part 21, the brake pad 44 is provided with a positioning plugboard 45 towards the brake locking piece, and when the brake pad 44 is extruded on the wheel body 3, the positioning plugboard 45 is inserted into the brake positioning hole 51.

[0021] The driving principle of the brake locking piece 5 is as follows: the locking pedal 4 is hinged on the locking pedal supporting rod 22 through a hinge rod at the side of the wheel body supporting part 21, the locking pedal 4 has the same structure as the prior art, which comprises an upper assembly 41 and a lower assembly 43, the upper assembly 41 is hinged on the locking pedal supporting rod 22, the end of the lower assembly 43 is hinged on the upper assembly 41, the middle part is hinged on the brake pad hinge seat 441 of the brake pad 44, when the upper assembly 41 is pressed, the brake pad 44 is bent and pressed on the wheel body 3, since the brake pad 44 is arranged in an arc shape outside the wheel body, when the front end is bent and pressed on the wheel body 3, the rear end is inserted into the brake positioning hole 51, the function of the insertion is used when braking, and the steering function is synchronous locking. The lower assembly 43 is an unlocking part, when the lower assembly 43 is lifted upward, the brake pad 44 is reset and separated from the wheel body 3 under the action of the elastic force of the brake pad 44.

[0022] In summary, the bearing assembly is arranged on the top surface of the wheel body bracket 2, and the sealing cover 11 is arranged on the upper part to seal the bearing assembly, so that the bearing assembly can be effectively hidden, external impurities can be prevented from entering the bearing assembly, the failure rate of the bearing assembly is effectively reduced, the steering of the universal wheel is more smooth, and the noise is effectively eliminated.

[0023] The brake locking piece 5 is further designed to block the space part connected with the wheel body 3 and the bearing 7, and the bearing assembly is sealed and isolated at the bottom. The positioning plug 45 is arranged on the brake pad 44 and faces the brake locking piece 5, when the brake pad 44 is pressed on the wheel body 3, the positioning plug 45 is inserted into the brake positioning hole 51, and the steering function is synchronous locking when braking, and the structure further promotes the rolling stability of the universal wheel, and prevents the trolley from side slipping when braking in a fast moving state.

Claims

1. A silent caster wheel characterized by: It includes the top connecting plate, the bottom surface of top connecting plate is fixed with sealing cover; the lower part of top connecting plate is provided with wheel body bracket, the side of wheel body bracket extends wheel body support part, wheel body support part is provided with wheel body; the top of wheel body bracket is provided with bearing support groove, bearing support groove is provided with bearing assembly, rivet or bolt assembly is used to lock top connecting plate, sealing cover, bearing support groove and wheel body bracket to be integrated.

2. A silent caster wheel as in claim 1, wherein: The bearing support groove and the wheel body bracket are extruded and fixed to be integrated, which includes a groove body and a bottom covering section, the bottom covering section is extruded and fixed to be integrated with the through hole on the wheel body bracket.

3. A silent caster wheel as in claim 1, wherein: The inside of the wheel body bracket is provided with a brake locking piece below the bearing support groove, the brake locking piece is provided with a brake positioning area; a brake pad is arranged below the wheel body support part in cooperation with the brake locking piece, the brake pad is provided with a positioning plug plate towards the brake locking piece, when the brake pad is extruded on the wheel body, the positioning plug plate is inserted into the brake positioning hole.

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