Adjusting wrench for trundle

Abstract

The adjusting wrench comprises an upper main body connecting plate, a lower main body connecting plate, a connector and a gear buckle, the right side of the upper main body connecting plate is fixedly connected with a shifting block, the upper end of the connector is provided with a limiting block, the outer side of the limiting block is connected with a gear in an embedded mode, and the gear buckle is fixedly connected with the shifting block. The connector and the gear are both installed in the middle of the lower body connecting plate, the gear buckle is located on the portion, on one side of the gear, of the lower body connecting plate, a rotating shaft is arranged on the lower body connecting plate, the gear buckle is rotationally connected with the rotating shaft, a rotating part is arranged at the end, close to the shifting block, of the gear buckle, and a limiting part is arranged at the other end of the gear buckle. First check blocks are fixedly connected to the lower main body connecting plate and located on the two sides of the limiting part, and second check blocks are fixedly connected to the lower main body connecting plate located between the rotating parts. Through the structure, the problems of poor stability and inconvenient adjustment are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of casters, in particular to an adjusting spanner for casters. Background Art

[0002] Casters are very common in our daily life. They are used in everything from baby carriages and shopping carts to large machine tools and equipment. Casters facilitate the movement of objects and are a very widely used industrial product.

[0003] The object needs to be able to move conveniently, and the caster also needs to have a brake function to meet the state of the object being fixed. Generally, a brake mechanism is set on the caster to brake the wheel, which has certain defects. For example, the locking stability of a single brake is insufficient for a large mass object, and it is easy to shake. When the brake pad is worn too much, it may cause a serious braking accident, and the extent of the accident cannot be predicted. Therefore, an adjustment wrench for casters is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an adjustment wrench for casters, which solves the problems of poor stability and inconvenient adjustment.

[0005] The utility model also provides the above-mentioned adjustment wrench for casters, comprising: an upper main body connecting plate, a lower main body connecting plate, a connector and a gear buckle, wherein a toggle block is fixedly connected to the right side of the upper main body connecting plate, a limit block is provided at the upper end of the connector, a gear is embedded and connected to the outer side of the limit block, the connector and the gear are both installed in the middle position of the lower main body connecting plate, the gear buckle is located on the lower main body connecting plate on one side of the gear, a rotating shaft is provided on the lower main body connecting plate, the gear buckle is rotatably connected to the rotating shaft, a rotating part is provided at one end of the gear buckle close to the toggle block, and a limiting part is provided at the other end, first blocks are fixedly connected to the lower main body connecting plate on both sides of the limiting part, and a second block is fixedly connected to the lower main body connecting plate between the rotating parts.

[0006] According to the adjusting wrench for casters, the upper main body connecting plate and the lower main body connecting plate are both provided with threaded holes, and the upper main body connecting plate and the lower main body connecting plate are fixed by means of the threaded holes and bolts.

[0007] According to the adjusting wrench for casters, a slot is provided in the middle of the gear, and the limiting block has the same shape as the slot and is a polygon.

[0008] According to the adjusting wrench for casters, the rack on the limiting portion is matched with the gear.

[0009] According to the adjusting wrench for casters, a turning arrow is provided on the upper side of the toggle block.

[0010] According to the adjusting wrench for casters, the number of gears is 64.

[0011] The utility model has the following beneficial effects:

[0012] In the utility model, an adjusting wrench is installed on the caster. When in use, the gear buckle is rotated so that one end of its limiting part is connected to the gear, and then the toggle block is rotated so that the pad on the caster is extended from the inside and contacts the ground, thereby increasing the friction between the pad and the ground. At this time, the moving wheel on the caster is in a suspended state, which makes it more stable. Compared with the traditional fixation by brake pads, the problem of accidents caused by excessive wear of the brake pads can be avoided. At the same time, the operation is convenient and no tools are needed.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a structural diagram of an adjustment wrench for casters of the utility model;

[0016] Figure 2 This is an internal structure diagram of an adjustment wrench for casters of the utility model;

[0017] Figure 3 This is a gear buckle and gear structure diagram of an adjustment wrench for casters of the utility model;

[0018] Figure 4 The utility model is an installation structure diagram of an adjusting wrench for casters.

[0019] Legend:

[0020] 1. Upper main body connecting plate; 2. Lower main body connecting plate; 21. Rotating shaft; 3. Toggle block; 4. Connector; 41. Limit block; 5. Gear buckle; 51. Rotating part; 52. Limit part; 6. Gear; 61. Slot; 7. First stop block; 8. Second stop block; 9. Threaded hole. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4 , the utility model embodiment is an adjustment wrench for casters, which includes an upper main body connecting plate 1, a lower main body connecting plate 2, a connector 4 and a gear buckle 5. A toggle block 3 is fixedly connected to the right side of the upper main body connecting plate 1. A turning arrow is provided on the upper side of the toggle block 3, and a connecting hole is provided at the outer end. When in use, the toggle block 3 can be directly rotated, or the toggle block 3 can be rotated by connecting a rotating rod. The flexibility is good. The upper main body connecting plate 1 and the lower main body connecting plate 2 are both provided with threaded holes 9. The upper main body connecting plate 1 and the lower main body connecting plate 2 are fixed by threaded holes 9 and bolts;

[0023] A thread is provided at the lower end of the connector 4, and the connector 4 is connected to the pad on the caster through the thread. When the toggle block 3 is rotated, the pad on the caster is extended from the inside and contacts the ground, increasing the friction between the caster and the ground. At this time, the moving wheel on the caster is in a suspended state, which makes it more stable. A limit block 41 is provided at the upper end of the connector 4, and a gear 6 is embedded and connected to the outer side of the limit block 41. The number of gears of the gear 6 is 64, which is lighter and more convenient to use than a gear with 32 teeth. A card slot 61 is provided in the middle position of the gear 6. The limit block 41 and the card slot 61 have the same shape and are both polygonal, which is convenient for the installation of the connector 4 and the gear 6. 6 are all installed in the middle position of the lower main body connecting plate 2, the gear buckle 5 is located on the lower main body connecting plate 2 on one side of the gear 6, the lower main body connecting plate 2 is provided with a rotating shaft 21, the gear buckle 5 is rotatably connected to the rotating shaft 21, the gear buckle 5 is provided with a rotating part 51 at one end close to the toggle block 3, and a limiting part 52 is provided at the other end, the rack on the limiting part 52 is adapted to the gear 6, by rotating the gear buckle 5, the rack on the limiting part 52 can be connected to the gear 6, so as to facilitate the limiting of the gear 6, located on both sides of the limiting part 52 are the first stoppers 7 fixedly connected to the lower main body connecting plate 2, and the second stoppers 8 are fixedly connected to the lower main body connecting plate 2 between the rotating parts 51.

[0024] Working principle: When installing, first install the gear 6 on the connector 4, then install the gear buckle 5 on the lower body connecting plate 2, and then install the lower body connecting plate 2 from the bottom of the connector 4, and finally connect the upper body connecting plate 1 and the lower body connecting plate 2 through the threaded holes 9 and bolts, and finally install the adjusting wrench on the caster;

[0025] When in use, first rotate the gear buckle 5 to connect one end of the limiting portion 52 with the gear 6, and then rotate the toggle block 3 to adjust the caster. The operation is convenient and no tools are needed.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An adjustment wrench for casters, characterized in that: include: An upper main body connecting plate (1), a lower main body connecting plate (2), a connector (4) and a gear buckle (5); a toggle block (3) is fixedly connected to the right side of the upper main body connecting plate (1); a limit block (41) is provided at the upper end of the connector (4); a gear (6) is embedded and connected to the outer side of the limit block (41); the connector (4) and the gear (6) are both installed at the middle position of the lower main body connecting plate (2); the gear buckle (5) is located on the lower main body connecting plate (2) on one side of the gear (6); a rotating shaft (21) is provided on the lower main body connecting plate (2); the gear buckle (5) is rotatably connected to the rotating shaft (21); a rotating part (51) is provided at one end of the gear buckle (5) close to the toggle block (3), and a limit part (52) is provided at the other end; first blocks (7) are fixedly connected to the lower main body connecting plate (2) on both sides of the limit part (52); and a second block (8) is fixedly connected to the lower main body connecting plate (2) between the rotating parts (51).

2. The adjusting wrench for casters according to claim 1, characterized in that: The upper main body connecting plate (1) and the lower main body connecting plate (2) are both provided with threaded holes (9), and the upper main body connecting plate (1) and the lower main body connecting plate (2) are fixed by means of the threaded holes (9) and bolts.

3. The adjusting wrench for casters according to claim 2, characterized in that: A slot (61) is provided in the middle of the gear (6), and the limiting block (41) and the slot (61) have the same shape and are both polygonal.

4. The adjusting wrench for casters according to claim 3, characterized in that: The rack on the limiting portion (52) is matched with the gear (6).

5. The adjusting wrench for casters according to claim 4, characterized in that: A turning arrow is arranged on the upper side of the toggle block (3).

6. The adjusting wrench for casters according to claim 5, characterized in that: The number of gears of the gear (6) is 64.

Images