Damping rubber trundle stable in installation

Abstract

The utility model discloses a shock-absorbing rubber trundle stable in installation, which comprises a hub, a rubber tire fixedly connected to the hub, a trundle frame arranged on the hub, two first rotating shafts rotationally connected to the trundle frame, a second rotating shaft rotationally connected to the trundle frame, an installation plate fixedly connected to one end of the second rotating shaft, and a damping device fixedly connected to the other end of the second rotating shaft. The trundle frame is provided with a limiting structure, the limiting structure is mainly composed of a limiting block, the limiting block is fixedly connected to the second rotating shaft, a round hole is formed in the limiting block, a round rod is arranged on the trundle frame, and the round hole is matched with the round rod in size. The utility model relates to the technical field of rubber trundles, in particular to a rubber trundle which solves the problems that when linear transportation is carried out on narrow terrains, the moving direction is difficult to accurately control to be a straight line all the time, the moving direction is prone to deviation, and operation convenience is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rubber caster technology field, more specifically, relate to a kind of shock-absorbing rubber caster of stable installation. BACKGROUND

[0002] Rubber caster is a kind of device installed at the bottom of equipment, furniture or other objects, which realizes rolling movement function by using rubber tire, it is mainly composed of hub, rubber tire, bearing and mounting bracket, etc., to facilitate the movement, handling or adjustment of object, while providing functions such as shock absorption, anti-skid, silence, etc.

[0003] During the use of the current shock-absorbing rubber caster of stable installation, workers often find that: in order to ensure flexible steering, the current rubber caster usually adopts universal movable connection between the caster and the mounting plate, which is difficult to accurately control the direction of movement as a straight line when straight-line transportation is carried out in narrow terrain, and the moving direction is easy to deviate, which reduces the operation convenience. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of shock-absorbing rubber caster of stable installation.

[0005] According to the first aspect embodiment of the utility model, a kind of shock-absorbing rubber caster of stable installation is provided, including hub, the hub is fixedly connected with rubber tire, the hub is provided with caster frame, two first rotating shafts are rotatably connected on the caster frame, second rotating shaft is rotatably connected on the caster frame, the one end of the second rotating shaft is fixedly connected with mounting plate, the caster frame is provided with limit structure, the limit structure is mainly composed of limit block, the limit block is fixedly connected on second rotating shaft, round hole is opened in the limit block, the caster frame is provided with round bar, the size of the round hole and the round bar is matched.

[0006] The caster frame is installed on the equipment by the mounting plate, when straight-line movement is needed, adjust the direction of hub first, then the round bar is clamped into the round hole, the limit block is limited, and the second rotating shaft is prevented from rotating, so that the hub always moves along the straight line, thereby avoiding the situation that the current caster and mounting plate are usually connected by universal movable connection, which is difficult to accurately control the direction of movement as a straight line when straight-line transportation is carried out in narrow terrain, and the moving direction is easy to deviate, which reduces the operation convenience.

[0007] According to the shock-absorbing rubber caster of stable installation, first sliding groove is opened in the caster frame, sliding plate is slidably connected in the first sliding groove, and the sliding plate is fixedly connected with the round bar. The sliding plate drives the round bar to rise, so that it is clamped into the round hole, and the movement of the round bar is more stable.

[0008] According to the shock-absorbing rubber caster wheel, the second sliding groove is formed in the caster frame, the sliding rod is slidably connected in the second sliding groove, and the limiting rod is fixedly connected to the sliding rod.

[0009] According to the shock-absorbing rubber caster wheel, the first spring is fixedly connected to the sliding plate, and one end of the first spring is fixedly connected to the inner wall of the first sliding groove.

[0010] According to the shock-absorbing rubber caster wheel, one end of the sliding rod is fixedly connected with the poking plate.

[0011] According to the shock-absorbing rubber caster wheel, the mounting structure is arranged on the wheel hub, the mounting structure mainly comprises two mounting columns, the two mounting columns are slidably inserted into the first rotating shaft respectively, and mounting grooves are formed in the two sides of the wheel hub.

[0012] When the rubber caster wheel is impacted by external force, for example, impact force generated when equipment passes through uneven ground, the rubber tire will be elastically deformed, the impact force is converted into the elastic potential energy of the rubber and is stored, when the external force disappears, the rubber molecular chain restores to the original state by relying on the elastic restoring force of the rubber molecular chain, the stored elastic potential energy is gradually released in the form of heat, thereby avoiding that the impact force is directly transmitted to the equipment, the wheel hub is clamped between the two first rotating shafts, and then the two mounting columns are slid to be clamped into the corresponding mounting grooves, so that the wheel hub can be quickly mounted on the caster frame.

[0013] According to the shock-absorbing rubber caster wheel, one end of the mounting column is fixedly connected with the disc, two second springs are fixedly connected to the disc, and one end of the second spring is fixedly connected to the first rotating shaft.

[0014] According to the shock-absorbing rubber caster of the first aspect of this utility model, a bolt is threadedly inserted into the first rotating shaft, and a threaded hole is formed on the mounting post. After the wheel hub is installed, rotating the bolt causes it to connect threadedly with the corresponding threaded hole, which can limit the position of the mounting post and further improve the stability of the installation.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0016] In this invention, by setting a limiting structure, the caster frame is installed on the equipment via the mounting plate. When continuous straight-line movement is required, the direction of the wheel hub is first adjusted, and then the round rod is inserted into the round hole to limit the limiting block, thereby preventing the second rotating shaft from rotating and ensuring that the wheel hub always moves in a straight line. This avoids the situation where the caster and mounting plate are usually connected by a universal joint, making it difficult to accurately control the direction of movement to remain straight when transporting in narrow terrain, which can easily cause the direction of movement to deviate and reduce the convenience of operation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional structural diagram of the shock-absorbing rubber caster in an embodiment of this utility model;

[0019] Figure 2 This is a partial schematic diagram of the limiting structure in an embodiment of the present utility model;

[0020] Figure 3 This is a partial schematic diagram of the installation structure in an embodiment of this utility model;

[0021] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of section A. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of the utility model, need understanding, if the direction description, for example, the direction or positional relation of indication such as upper, lower, front, rear, left, right is based on the direction or positional relation shown in drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation configuration and operation, therefore, it can not be understood as a limitation on the utility model.

[0024] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, second, only for the purpose of distinguishing technical features, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0025] In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features.

[0026] In the description of the utility model, it should be noted that, unless otherwise expressly provided and limited, the term "connection" should be broadly understood, for example, it can be fixed connection or movable connection, or detachable connection or non-detachable connection, or integrally connected; It can be mechanical connection, or electrical connection or can communicate with each other; It can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements, indirect communication or the interaction relationship of two elements.

[0027] The following disclosure provides many different embodiments or examples for implementing different aspects of the utility model.

[0028] Referring to Figures 1 to 4 As shown in the figure, a stable shock-absorbing rubber caster is provided, comprising a hub 1, a rubber tire 2 is fixedly connected on the hub 1, a caster frame 3 is arranged on the hub 1, two first rotating shafts 4 are rotatably connected on the caster frame 3, a second rotating shaft 5 is rotatably connected on the caster frame 3, and an installation plate 6 is fixedly connected on one end of the second rotating shaft 5.

[0029] Referring to Figure 2Some embodiments of the utility model, the caster frame 3 is provided with limiting structure 7, limiting structure 7 is mainly composed of limiting block 71, limiting block 71 is fixedly connected on the second pivot 5, round hole 72 is set up on limiting block 71, the caster frame 3 is provided with round bar 73, round hole 72 and round bar 73 size are matched, through mounting plate 6, the caster frame 3 is installed on the equipment, when needing to continue to walk straight line, first adjust the direction of wheel hub 1, then round bar 73 is clamped into round hole 72, limiting block 71 is limited, and then second pivot 5 can be prevented from rotating, so that wheel hub 1 always moves along straight line, thereby avoid the situation that the operation convenience is reduced because the universal movable connection between the caster and mounting plate 6 is generally adopted, when straight line transportation in narrow terrain is carried out, it is difficult to accurately control the direction of movement to be straight line all the time, the moving direction is easy to deviate, and the operation convenience is reduced.

[0030] Some embodiments of the utility model, the caster frame 3 is provided with first sliding slot 74, sliding slot 74 is slidably connected with sliding plate 75, sliding plate 75 is fixedly connected with round bar 73, sliding sliding plate 75 drives round bar 73 to ascend, so that it is clamped into round hole 72, so that the moving process of round bar 73 is more stable, the caster frame 3 is provided with second sliding slot 76, second sliding slot 76 is slidably connected with slide rod 77, limiting rod 78 is fixedly connected on slide rod 77, in the conventional advancing process, slide rod 77 is slid to left, so that limiting rod 78 is supported on the top of sliding plate 75, sliding plate 75 can be limited, preventing round bar 73 from ascending, first spring 710 is fixedly connected on the inner wall of first sliding slot 74, when round bar 73 is away from round hole 72, first spring 710 is in the tensile state, so after adjusting the direction of wheel hub 1, slide rod 77 is slid to right, so that limiting rod 78 is away from sliding plate 75, round bar 73 is slid upwards under the action of the rebounding force of first spring 710, so that operation is more convenient, one end of slide rod 77 is fixedly connected with actuating plate 79, actuating plate 79 can increase the area of operation, and staff can directly operate with foot.

[0031] Refer to Figure 3 And Figure 4Some embodiments of the utility model, wheel hub 1 is provided with installation structure 8, installation structure 8 is mainly composed of two mounting posts 81, two mounting posts 81 are respectively slidingly inserted on first rotating shaft 4, the both sides of wheel hub 1 are respectively provided with installation slot 82, wheel hub 1 is clamped between two first rotating shafts 4, then two mounting posts 81 are slid to be clamped in corresponding installation slot 82 respectively, wheel hub 1 can be installed on caster frame 3 quickly, one end of mounting post 81 is fixedly connected with disc 83, two second springs 84 are fixedly connected on disc 83, one end of second spring 84 is fixedly connected on first rotating shaft 4, when installing, the both sides of wheel hub 1 will push the inclined surface of two mounting posts 81, so that mounting post 81 slides outward, drives second spring 84 to stretch, when mounting post 81 contacts installation slot 82, mounting post 81 is clamped in corresponding installation slot 82 under the action of the resilience of second spring 84, so that operation is more convenient, bolt 85 is screwed on first rotating shaft 4, threaded hole 86 is formed in mounting post 81, after wheel hub 1 is installed, bolt 85 is rotated, so that corresponding threaded hole 86 is screw-connected, can limit mounting post 81, further improve the stability of installation.

[0032] When the rubber caster is impacted by external force, for example, the impact force generated when the equipment passes through uneven ground, the rubber tire 2 will be elastically deformed, and the impact force will be converted into the elastic potential energy of the rubber and stored. When the external force disappears, the rubber molecular chain restores to its original state relying on its own elastic restoring force, and the stored elastic potential energy is gradually released in the form of heat, thereby avoiding the direct transmission of the impact force to the equipment, playing a role in shock absorption. The caster frame 3 is installed on the equipment through the mounting plate 6. When it is necessary to continuously move in a straight line, the direction of the wheel hub 1 is adjusted first, then the round rod 73 is clamped into the round hole 72, and the limiting block 71 is limited, thereby preventing the second rotating shaft 5 from rotating, so that the wheel hub 1 always moves along a straight line, thereby avoiding the situation that the current caster and the mounting plate 6 are usually connected in a universal manner, and it is difficult to accurately control the moving direction to be always straight when transporting in a straight line in a narrow terrain, which easily causes the moving direction to deviate and reduces the operation convenience.

[0033] The sliding slide plate 75 drives the round rod 73 to ascend, and the round rod 73 is clamped into the round hole 72, so that the movement of the round rod 73 is more stable. In the conventional forward movement process, the slide rod 77 is slid to the left, so that the limiting rod 78 is abutted above the slide plate 75, the slide plate 75 can be limited, and the round rod 73 is prevented from ascending. When the round rod 73 is away from the round hole 72, the first spring 710 is in a stretched state. Therefore, after the direction of the hub 1 is adjusted, the slide rod 77 is slid to the right, so that the limiting rod 78 is away from the slide plate 75, and the round rod 73 is slid upward under the action of the rebounding force of the first spring 710, so that the operation is more convenient. The toggle plate 79 can increase the operation area, so that the staff can directly operate with the foot, the hub 1 is clamped between the two first rotating shafts 4, and then the two mounting columns 81 are slid to be clamped into the corresponding mounting grooves 82, so that the hub 1 can be quickly mounted on the caster frame 3. When the hub 1 is mounted, the two sides of the hub 1 push the inclined surfaces of the two mounting columns 81, so that the mounting column 81 is slid outward, the second spring 84 is stretched, when the mounting column 81 is in contact with the mounting groove 82, the mounting column 81 is clamped into the corresponding mounting groove 82 under the action of the rebounding force of the second spring 84, so that the operation is more convenient. After the hub 1 is mounted, the bolt 85 is rotated, so that the corresponding threaded hole 86 is screw-connected, the mounting column 81 can be limited, and the stability of the mounting is further improved.

[0034] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A stable, shock-absorbing rubber caster, comprising a hub (1), characterized in that: A rubber tire (2) is fixedly connected to the hub (1). A caster frame (3) is provided on the hub (1). Two first rotating shafts (4) are rotatably connected to the caster frame (3). A second rotating shaft (5) is rotatably connected to the caster frame (3). A mounting plate (6) is fixedly connected to one end of the second rotating shaft (5). A limiting structure (7) is provided on the caster frame (3). The limiting structure (7) is mainly composed of a limiting block (71). The limiting block (71) is fixedly connected to the second rotating shaft (5). A round hole (72) is opened on the limiting block (71). A round rod (73) is provided on the caster frame (3). The size of the round hole (72) and the round rod (73) are matched.

2. The shock-absorbing rubber caster with stable installation according to claim 1, characterized in that: The caster frame (3) is provided with a first groove (74), and a slide plate (75) is slidably connected in the first groove (74). The slide plate (75) is fixedly connected to the round rod (73).

3. The shock-absorbing rubber caster with stable installation according to claim 2, characterized in that: The caster frame (3) is provided with a second slide groove (76), and a slide rod (77) is slidably connected in the second slide groove (76). A limit rod (78) is fixedly connected to the slide rod (77).

4. The shock-absorbing rubber caster with stable installation according to claim 2, characterized in that: A first spring (710) is fixedly connected to the slide plate (75), and one end of the first spring (710) is fixedly connected to the inner wall of the first slide groove (74).

5. The shock-absorbing rubber caster with stable installation according to claim 3, characterized in that: A toggle plate (79) is fixedly connected to one end of the slide bar (77).

6. The stable shock-absorbing rubber caster according to any one of claims 1 to 5, characterized in that: The hub (1) is provided with an installation structure (8), which is mainly composed of two mounting posts (81). The two mounting posts (81) are slidably inserted into the first rotating shaft (4). The hub (1) is provided with mounting grooves (82) on both sides.

7. The shock-absorbing rubber caster with stable installation according to claim 6, characterized in that: One end of the mounting post (81) is fixedly connected to a disc (83), and two second springs (84) are fixedly connected to the disc (83). One end of the second spring (84) is fixedly connected to the first rotating shaft (4).

8. The shock-absorbing rubber caster with stable installation according to claim 6, characterized in that: The first rotating shaft (4) is threaded with a bolt (85), and the mounting post (81) is threaded with a hole (86).

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