Trundle with triangular supporting bridge structure

Abstract

The utility model discloses a trundle with a triangular support bridge structure, which comprises a trundle support, the trundle support is detachably connected with the trundle, the trundle support comprises a movable support and a positioning support, the trundle is rotatably mounted between positioning side plates on the trundle support, and the movable support is connected with the trundle. The trundle comprises a trundle body and a trundle shaft connected with the trundle body, the trundle body is provided with a groove position hole matched with the trundle shaft, the trundle shaft is provided with a shaft protrusion matched with the groove position hole, the trundle shaft further comprises a triangular 90-degree bridge structure used for supporting, and the triangular 90-degree bridge structure extends towards the center of the trundle along the two ends of the trundle. By means of the structure, it can be guaranteed that the speed is stable and stable, the bearing capacity of the shaft support is greatly utilized by using the triangular 90-degree bridge structure with the depth ranging from 10 mm to 100 mm, materials are saved, the weight is light, and on the premise that the bearing capacity is not reduced, the safety and stability of the trundle are further improved in the aspect of the service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of casters, and in particular relates to a caster with a triangular supporting bridge structure. Background Art

[0002] At present, casters are often needed in daily life and light industrial fields. Casters must ensure the stability of lateral tension and safety and stability during normal forward movement during operation, and can be adjusted in size. Traditional casters are used in unstable ground conditions. Because the original bonding surface is circular bonding, even or rectangular support points are used to achieve support capacity, but this method is not stable enough, and the lateral tension is insufficient and easy to break. According to mechanical analysis and actual use, there are problems such as insufficient load-bearing capacity, breakage, and excessive consumption of energy during use.

[0003] In view of the above factors, a caster with a triangular support bridge structure is specially designed. The lifting can ensure a steady speed. The shaft support uses a triangular 90-degree bridge structure with a depth of 10mm-100mm, which has greater advantages in bearing capacity. It not only saves materials and is light, but also improves the safety and stability of the caster in terms of service life without reducing the bearing capacity. Utility Model Content

[0004] The utility model aims to provide a caster with a triangular supporting bridge structure to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the utility model is achieved through the following technical solutions: a caster with a triangular support bridge structure, comprising a caster bracket, the caster bracket is detachably connected to the caster, the caster bracket comprises a movable bracket and a positioning bracket, and the caster is rotatably installed between the positioning side plates on the caster bracket;

[0006] The caster comprises a wheel body and a wheel axle connected to the wheel body, the wheel body is provided with a slot hole matched with the wheel axle, and the wheel axle is provided with a shaft protrusion matched with the slot hole;

[0007] The wheel axle also includes a triangular 90-degree bridge structure for support, and extends along both ends of the caster toward the center of the caster.

[0008] Furthermore, the wheel body and the wheel axle are connected to form an integral structure by bonding.

[0009] Furthermore, a through hole is provided at the center of the wheel axle, a bearing is installed in the through hole, a mounting groove is left on the end face of the wheel axle located at the through hole, and a protective cover is detachably connected to the mounting groove.

[0010] Furthermore, the protective cover is an arc-shaped cover structure, a through-hole coaxial with the through hole is opened on the protective cover, a positioning shaft ring is fixedly provided on the protective cover, and the positioning shaft ring cooperates with the inner hole of the bearing.

[0011] Furthermore, the protective cover cooperates with the wheel axle end, and a protective sleeve is inserted into the wheel axle, the protective sleeve is a hollow tube structure, and the diameter of the protective sleeve is the same as the diameter of the inner hole of the bearing.

[0012] Furthermore, the axle also includes a triangular support surface of a triangular bridge structure for supporting, which is 90 degrees, 10mm-100mm thick, and 6.5mm-400mm in diameter.

[0013] Furthermore, the wheel body and the wheel axle are made of any one of TPR, TPE, PP or PU.

[0014] Further, the movable bracket and the positioning bracket both include positioning side plates for rotatably mounting the casters;

[0015] The positioning side plate on the movable bracket is fixedly connected to the positioning seat, and the positioning seat is rotatably connected to the fixed plate.

[0016] Further, the movable bracket and the positioning bracket both include positioning side plates for rotatably mounting the casters;

[0017] The positioning side plate of the positioning bracket is fixedly connected to the positioning seat, and the positioning seat is bolted to the fixing plate.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The structure of the utility model is superior to the traditional circle bonding technology, and the horizontal pulling force is more stable. The technical improvement can ensure the smooth and stable speed. The shaft support uses a triangular 90-degree bridge structure with a depth of 10mm-100mm, which has greater advantages in bearing capacity. The shaft support uses a triangular support bridge structure, and each surface support is 90 degrees. According to mechanical analysis, it is not easy to break and has a greater bearing capacity. It is not only material-saving and lightweight, but also improves the safety and stability of the caster in terms of service life without reducing the bearing capacity. The solution has a simple structure, is easy to maintain and replace, and has a wide range of applicability. The utility model deepens and widens the triangular odd-number support, so that the caster can save material, have a long service life, and is more stable and can do more work. In addition, the utility model saves energy and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the connection between the caster and the movable bracket of the utility model;

[0021] Figure 2This is a schematic diagram of the connection between the caster and the positioning bracket of the utility model;

[0022] Figure 3 It is a plane schematic diagram of the wheel body of the utility model;

[0023] Figure 4 It is a schematic diagram of a through hole on the wheel body of the utility model;

[0024] Figure 5 This is a schematic diagram of a triangular 90-degree bridge structure with a single-sided support for the wheel axle of the utility model;

[0025] Figure 6 It is a schematic diagram of the protective cover of the utility model;

[0026] Figure 7 It is a schematic diagram of the protective sleeve of the utility model. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] like Figure 1-7 As shown, a caster with a triangular support bridge structure includes a caster bracket 1, a caster 2 is detachably connected to the caster bracket 1, the caster bracket 1 includes a movable bracket and a positioning bracket, and the caster 2 is rotatably installed between the positioning side plates on the caster bracket 1;

[0031] The caster 2 comprises a wheel body 2-1 and a wheel axle 2-2 connected to the wheel body 2-1, the wheel body 2-1 is provided with a slot hole matched with the wheel axle 2-2, and the wheel axle 2-2 is provided with a shaft protrusion matched with the slot hole;

[0032] The wheel axle 2 - 2 also includes a triangular 90-degree bridge structure 2 - 3 for support, and extends along both ends of the caster 2 toward the center of the caster 2 .

[0033] The utility model deepens and widens the triangular single support, so that the caster saves materials, has a long service life, is more stable, and can perform more work.

[0034] In order to ensure that the wheel body has a wider bonding area and a more stable lateral pulling force when in use, the wheel body 2-1 and the wheel axle 2-2 are connected to form an integrated structure by bonding.

[0035] In order to facilitate the positioning and installation of the protective cover when in use, a through hole 3 is provided at the center of the wheel axle 2-2, a bearing is installed in the through hole 3, and an installation groove 4 is left on the end face of the through hole 3 on the wheel axle 2-2, and a protective cover 5 is detachably connected to the installation groove.

[0036] In order to prevent objects from entering the gap between the wheel and the bracket during use and to protect the wheel from rotating freely, the protective cover 5 is an arc-shaped cover structure, and a through-hole coaxial with the through hole 3 is opened on the protective cover 5. A positioning shaft ring 6 is fixedly provided on the protective cover 5, and the positioning shaft ring 6 cooperates with the inner hole of the bearing. When the wheel axle rotates, the protective cover remains stationary and does not rotate with the rotation of the wheel axle.

[0037] In order to facilitate fixing the positioning side plate with bolts through the protective sleeve 7 when in use, the protective cover 5 cooperates with the end of the wheel axle 2-2, and a protective sleeve 7 is passed through the wheel axle 2-2. The protective sleeve 7 is a hollow tube structure, and the diameter of the protective sleeve 7 is the same as the diameter of the inner hole of the bearing.

[0038] In order to ensure that the wheel body is not easy to break and has a greater bearing capacity when in use, the wheel axle 2-2 also includes a triangular support surface of a triangular bridge structure for supporting, which is 90 degrees, with a thickness of 10mm-100mm and a diameter ranging from 6.5mm-400mm.

[0039] In order to increase the durability of the wheel body structure when in use, the wheel body 2-1 and the wheel axle 2-2 are made of any one of TPR, TPE, PP or PU.

[0040] In order to facilitate the selection of the form of the caster according to different usage conditions, the movable bracket and the positioning bracket both include a positioning side plate for rotatably mounting the caster 2;

[0041] The positioning side plate on the movable bracket is fixedly connected to the positioning seat, and the positioning seat is rotatably connected to the fixed plate.

[0042] In order to facilitate the selection of the form of the caster according to different usage conditions, the movable bracket and the positioning bracket both include a positioning side plate for rotatably mounting the caster 2;

[0043] The positioning side plate of the positioning bracket is fixedly connected to the positioning seat, and the positioning seat is bolted to the fixing plate.

[0044] The protective cover is installed in the installation groove 4 on the end surface of the through hole 3 on the wheel axle 2-2, and the protective sleeve is inserted into the through hole and then fixed on the movable bracket or the positioning bracket with bolts inserted into the protective sleeve.

[0045] The wheel axle support of the utility model uses a triangular support bridge structure, each surface support is 90 degrees, the depth is 10mm-100mm, and according to mechanical analysis, it is not easy to break and has a greater bearing capacity.

[0046] The utility model realizes the caster wheel with material saving, long service life, more stable operation and more work, and ensures that any material is light, fast, and the bearing capacity is not reduced, ensuring the stability and stability of the caster wheel. In addition, the structure of the caster wheel is simple and easy to maintain and replace.

[0047] The wheel body of the utility model is bonded and triangularly supported, each surface is 90 degrees, the thickness ranges from 10mm to 100mm, the diameter ranges from 6.5mm to 400mm, the wheel body is made of any material such as TPR, TPE, PP, PU, ​​etc., and the dust cover is used to prevent objects from entering the gap between the wheel and the bracket to protect the wheel from rotating freely. Among them, each surface support of the triangular support bridge structure is 90 degrees to achieve stronger lateral pulling force, more stable triangles, and more practical in preventing breakage.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A caster with a triangular support bridge structure, characterized in that: It comprises a caster bracket (1), to which a caster (2) is detachably connected, the caster bracket (1) comprises a movable bracket and a positioning bracket, and the caster (2) is rotatably mounted between positioning side plates on the caster bracket (1); The caster (2) comprises a wheel body (2-1) and a wheel axle (2-2) connected to the wheel body (2-1); a slot hole matching the wheel axle (2-2) is provided on the wheel body (2-1); and a shaft protrusion matching the slot hole is provided on the wheel axle (2-2); The wheel axle (2-2) also includes a triangular 90-degree bridge structure (2-3) for support, and extends along both ends of the caster (2) toward the center of the caster (2).

2. The caster with a triangular support bridge structure according to claim 1, characterized in that: The wheel body (2-1) and the wheel axle (2-2) are connected to form an integrated structure by bonding.

3. The caster with a triangular support bridge structure according to claim 2, characterized in that: A through hole (3) is provided at the center of the wheel axle (2-2), a bearing is installed in the through hole (3), a mounting groove (4) is left on the end surface of the wheel axle (2-2) located at the through hole (3), and a protective cover (5) is detachably connected to the mounting groove.

4. The caster with a triangular support bridge structure according to claim 3, characterized in that: The protective cover (5) is an arc-shaped cover structure. A through-hole channel coaxial with the through hole (3) is opened on the protective cover (5). A positioning shaft ring (6) is fixedly arranged on the protective cover (5), and the positioning shaft ring (6) cooperates with the inner hole of the bearing.

5. The caster with a triangular support bridge structure according to claim 4, characterized in that: The protective cover (5) is matched with the end of the wheel axle (2-2), and a protective sleeve (7) is inserted into the wheel axle (2-2). The protective sleeve (7) is a hollow tube structure, and the diameter of the protective sleeve (7) is the same as the diameter of the inner hole of the bearing.

6. The caster with a triangular support bridge structure according to claim 5, characterized in that: The wheel axle (2-2) also includes a triangular 90-degree bridge structure (2-3) for supporting, and the triangular support surface is 90 degrees, with a thickness of 10mm-100mm and a diameter ranging from 6.5mm-400mm.

7. The caster with a triangular support bridge structure according to claim 6, characterized in that: The wheel body (2-1) and the wheel axle (2-2) are made of any one material of TPR, TPE, PP or PU.

8. The caster with a triangular support bridge structure according to claim 7, characterized in that: The movable bracket and the positioning bracket both include positioning side plates for rotatably mounting the caster (2); The positioning side plate on the movable bracket is fixedly connected to the positioning seat, and the positioning seat is rotatably connected to the fixed plate.

9. The caster with a triangular support bridge structure according to claim 7, characterized in that: The movable bracket and the positioning bracket both include positioning side plates for rotatably mounting the caster (2); The positioning side plate of the positioning bracket is fixedly connected to the positioning seat, and the positioning seat is bolted to the fixing plate.

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