General brake structure for medium-sized caster

Abstract

The utility model discloses a general brake structure for medium-sized trundles, and relates to the technical field of trundles. The general braking structure for the medium-sized trundle comprises a movable support arranged at the bottom of a bottom plate, the movable support is used for supporting a wheel, the movable support is movably connected with a braking spring piece and a split assembly in a clamped mode through a sterculia hole rivet, and a braking pedal is movably connected with the interior of the split assembly in a clamped mode. Wheels are connected to the movable support through threaded bolts, and eccentric distances C and brake points M formed by combining the wheels of various models and the movable support are the same in position. According to the general braking structure for the medium-sized caster, the problem that braking parts of medium-sized caster products with different specifications and models cannot be universally used is solved through the newly-designed braking structure; parts of the brake structure are unified and universal; the production efficiency of the product is effectively improved, and the production management cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casters, in particular to a universal brake structure for medium-sized casters. Background Art

[0002] Casters are wheels that are connected to the bottom of a transport device and can be steered freely. They can be broadly categorized as fixed casters and swivel casters. Casters are an essential component of many transport equipment. Swivel casters are universal wheels, allowing for 360-degree rotation.

[0003] Due to structural constraints, traditional medium-sized casters require casters of different specifications to be equipped with brake structures with parts of different sizes; due to the large number of brake parts, warehouse management is inconvenient; and the production process also has disadvantages such as low production efficiency due to different part specifications and numerous steps. In response to the shortcomings of the existing technology, the utility model provides a universal brake structure for medium-sized casters to solve the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a universal brake structure for medium-sized casters. Through the newly designed brake structure, the problem that the brake parts of medium-sized casters of different specifications and models cannot be universal is solved; the parts of the brake structure are unified and universal; the production efficiency of this product is effectively improved, and the production management costs are reduced.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a universal brake structure for medium-sized casters, comprising a movable bracket arranged at the bottom of a base plate, the movable bracket being used to support the wheel, the movable bracket being movably connected to a brake spring sheet and a split system through eyelet rivets;

[0006] The internal movable card of the split system is connected with a brake pedal;

[0007] The wheels are connected to the movable bracket via threaded bolts, and the eccentricity C and the braking point M formed by the combination of various types of wheels and the movable bracket are the same.

[0008] Preferably, the base plate is riveted to the brake sprocket through a central rivet, and the front end of the brake spring sheet is provided with an arc-shaped caliper that is engaged with the brake sprocket.

[0009] Preferably, a long notch is provided on the middle side of the brake spring sheet.

[0010] Preferably, the brake spring piece is provided with convex teeth.

[0011] Preferably, the split system is provided with a square opening, the brake pedal is movably connected in the square opening, the front end of the brake pedal is designed as a small panel for unlocking the pedal surface, and the middle part is designed with front and rear shoulder structures.

[0012] Preferably, the front and rear pedal surfaces of the brake pedal are respectively punched with a first anti-skid pattern and a second anti-skid pattern.

[0013] Preferably, the movable bracket is embedded with a lower ball steel ball and an upper ball steel ball for supporting and limiting the brake sprocket and the base plate respectively.

[0014] Preferably, a self-locking nut is threadedly connected to the threaded bolt.

[0015] Preferably, the split body is provided with an inner boss, and the inner boss is movably engaged with the inside of the movable bracket.

[0016] The utility model discloses a universal brake structure for medium-sized casters, which has the following beneficial effects:

[0017] The universal brake structure of the medium-sized caster solves the problem that the brake parts of medium-sized casters of different specifications and models cannot be used universally through the newly designed brake structure; the parts of the brake structure are unified and universal; the production efficiency of this product is effectively improved, and the production management cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is the braking effect diagram of the medium-sized universal caster of the utility model;

[0021] Figure 3 This is an exploded view of the medium-sized universal caster of the utility model;

[0022] Figure 4 This is a schematic diagram of the brake structure of the medium-sized universal caster of the utility model;

[0023] Figure 5 It is a drawing of parts for the sub-assembly of this utility model;

[0024] Figure 6 This is a parts diagram of the brake spring piece of the utility model;

[0025] Figure 7 This is a diagram of the brake pedal parts of the utility model.

[0026] In the figure: 1. Base plate; 2. Movable bracket; 3. Brake sprocket; 4. Upper ball bearing steel ball; 5. Lower ball bearing steel ball; 6. Center rivet; 7. Split system; 71. Square opening; 72. Inner boss; 8. Brake spring plate; 81. Arc caliper; 82. Protruding teeth; 83. Long notch; 9. Brake pedal; 91. Front shoulder; 92. Rear shoulder; 93. First anti-skid pattern; 94. Second anti-skid pattern; 10. Phoenix eye rivet; 11. Wheel; 12. Threaded bolt; 13. Self-locking nut. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. 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 making any creative efforts are within the scope of protection of the present invention.

[0028] The embodiment of the present application solves the problems of traditional medium-sized casters by providing a universal brake structure for medium-sized casters. Due to structural constraints, casters of different specifications need to be equipped with brake structures with parts of different sizes; warehouse management is inconvenient due to the large number of specifications of brake parts; and the production process also has low production efficiency due to different part specifications and numerous processes.

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] The utility model discloses a universal brake structure for medium-sized casters. Figure 1-7 As shown, it includes a movable bracket 2 arranged at the bottom of the base plate 1, the movable bracket 2 is used to support the wheel 11, and the movable bracket 2 is movably connected to the brake spring sheet 8 and the split system 7 through the phoenix eye rivet 10; the split system 7 is provided with an inner boss 72, and the inner boss 72 is movably connected to the inside of the movable bracket 2.

[0031] The internal movable card of the split system 7 is connected to the brake pedal 9;

[0032] The movable bracket 2 is connected to the wheel 11 via a threaded bolt 12. The eccentricity C and the braking point M formed by the combination of various types of wheels 11 and the movable bracket 2 are the same; a self-locking nut 13 is threadedly connected to the threaded bolt 12.

[0033] This medium-sized caster has a universal brake structure. Figure 1This is a product assembly drawing; in the figure, the base plate 1 and the brake sprocket 3 are riveted together as a whole through the center rivet 6; the movable bracket 2 can rotate along the center rivet 6 in the combination of the upper ball steel ball 4 and the lower ball steel ball 5; in the figure, the brake spring plate 8 has no contact with the brake sprocket 3 and the wheel 11, the wheel 11 can rotate, and the movable bracket 2 can also rotate. At this time, the caster is in a movable driving state.

[0034] The base plate 1 is riveted to the brake sprocket 3 via a central rivet 6 , and a front end of the brake spring sheet 8 is provided with an arc-shaped caliper 81 that is engaged with the brake sprocket 3 .

[0035] Figure 2 This is a diagram of the product braking effect, which is a split brake caster structure; the split system 7 and the movable bracket 2, and the brake spring sheet 8 are connected and assembled into one by the phoenix eye rivet 10; as shown in the figure, the brake pedal 9 is stepped on in the F direction, so that the front shoulder 91 of the brake pedal 9 contacts the rear side of the square opening 71 of the split system 7 and is in a locked position, and the tail of the brake spring sheet 8 is pressed downward by the rear shoulder 92 of the brake pedal 9, and the convex teeth 82 of the brake spring sheet 8 contact the wheel surface of the wheel 11, so that the wheel 11 is locked; the arc-shaped caliper 81 at the front end of the brake spring sheet 8 is forced to move upward and engage with the concave teeth of the brake sprocket 3, so that the brake sprocket 3 cannot rotate. At this time, the movable bracket 2 cannot rotate, and the wheel 11 cannot rotate either, thereby achieving a double-brake braking effect for the caster.

[0036] Figure 3 This is an exploded view of the product, in which the brake structure parts are composed of a split assembly 7, a brake spring sheet 8, and a brake pedal 9, which are connected to the movable bracket 2 through a phoenix eye rivet 10 to form an integrated unit.

[0037] Figure 4 This is a schematic diagram of the braking structure of this product; the figure shows the braking state, and the product design has the same eccentricity C size and the same braking point M size; as shown in the figure, the wheel surfaces of medium-sized casters with different diameters 11φ75, φ80, φ100, and φ125 can all contact the convex teeth 82 of the brake spring plate 8 at the braking point M to achieve the braking effect of the wheel 11; at the same time, the front end arc caliper 81 of the brake spring plate 8 engages with the concave teeth of the brake sprocket 3 to achieve the braking effect of the movable bracket 2; this structural design enables medium-sized casters of different specifications to use a common braking structure; the split parts 7 of the brake mechanism, the brake spring plate 8, and the brake pedal 9 in the figure can all be used interchangeably, effectively improving the utilization rate of parts.

[0038] Figure 5 7 is a part drawing of the split system; as shown in the figure, an inner boss 72 is formed, and there is a through hole on the inner boss 72. The middle of the split system 7 is designed with a square opening 71; the split system 7 is connected to the movable bracket 2 by the eyelet rivet 10; the outer side of the assembled bracket is flush, and the overall appearance is more beautiful.

[0039] Figure 6This is a parts diagram of the brake spring piece 8; the front end adopts an arc-shaped caliper 81, which can better fit with the brake sprocket 3; the middle side adopts a long notch 83, which makes assembly more convenient and effectively improves assembly efficiency; a double convex tooth 82 structure is adopted, and the convex tooth 82 is moved forward to make the braking point adapt to wheels 11 of different diameters; the brake spring piece 8 is made of 65Mn material with heat treatment to ensure good braking performance.

[0040] Figure 7 This is a diagram of the brake pedal 9. The front and rear pedal surfaces of the brake pedal 9 are stamped with a first anti-skid pattern 93 and a second anti-skid pattern 94, respectively. The front end is designed as a small panel for the unlocking pedal, which also facilitates installation into the middle square opening 71 of the splitter assembly 7. The middle section is designed with a front shoulder 91 and a rear shoulder 92, and the rear end is the brake pedal surface. Both the front and rear pedal surfaces are stamped with anti-skid patterns to prevent slipping when pedaling, making braking and unlocking easier.

[0041] In summary, the newly designed brake structure of this product solves the problem that the brake parts of medium-sized casters of different specifications and models cannot be used universally; it makes the parts of the brake structure unified and universal; the production efficiency of this product is effectively improved, and the production management costs are reduced.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A universal brake structure for medium-sized casters, comprising a movable bracket (2) arranged at the bottom of a base plate (1), wherein the movable bracket (2) is used to support a wheel (11), and is characterized in that: The movable bracket (2) is movably connected to a brake spring sheet (8) and a splitter assembly (7) via an eyelet rivet (10); The internal movable card of the split system (7) is connected with a brake pedal (9); The movable bracket (2) is connected to the wheel (11) via a threaded bolt (12), and the eccentricity C and the braking point M formed by the combination of various types of wheels (11) and the movable bracket (2) are the same.

2. The universal brake structure for medium-sized casters according to claim 1, characterized in that: The base plate (1) is riveted to the brake sprocket (3) via a central rivet (6), and the front end of the brake spring sheet (8) is provided with an arc-shaped caliper (81) that is engaged with the brake sprocket (3).

3. The universal brake structure for medium-sized casters according to claim 2, characterized in that: A long notch (83) is provided on the middle side of the brake spring piece (8).

4. The universal brake structure for medium-sized casters according to claim 2, characterized in that: The brake spring piece (8) is provided with a convex tooth (82).

5. The universal brake structure for medium-sized casters according to claim 1, characterized in that: The split system (7) is provided with a square opening (71), and the brake pedal (9) is movably connected in the square opening (71). The front end of the brake pedal (9) is designed as a small panel for unlocking the pedal surface, and the middle part is designed with a front shoulder (91) and a rear shoulder (92) structure.

6. The universal brake structure for medium-sized casters according to claim 5, characterized in that: The front and rear pedal surfaces of the brake pedal (9) are respectively punched with a first anti-skid pattern (93) and a second anti-skid pattern (94).

7. The universal brake structure for medium-sized casters according to claim 2, characterized in that: The movable bracket (2) is embedded with a lower ball steel ball (5) and an upper ball steel ball (4) for supporting and limiting the brake sprocket (3) and the base plate (1) respectively.

8. The universal brake structure for medium-sized casters according to claim 1, characterized in that: A self-locking nut (13) is threadedly connected to the threaded bolt (12).

9. The universal brake structure for medium-sized casters according to claim 1, characterized in that: The split assembly (7) is provided with an inner boss (72), and the inner boss (72) is movably engaged with the interior of the movable bracket (2).

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