Manual locking shaft

Abstract

The utility model discloses a manual locking shaft, which relates to the field of tire maintenance service and comprises a main shaft sleeve base, a main shaft is mounted in the main shaft sleeve base, the lower end of the main shaft is positioned in the main shaft sleeve base, a flange plate and a nylon protective sleeve are mounted at the upper end of the main shaft, and a bayonet lock is mounted on the outer circumferential wall surface of the main shaft. A positioning sliding seat is further installed on the flange plate, a centering lead screw is installed in the main shaft, a cone and a locking nut are sequentially installed on the centering lead screw from bottom to top, a pressure bearing is further installed in the cone, loosening can be prevented through the pressure bearing installed in the cone, and stable operation is guaranteed.

Description

Technical Field

[0001] The utility model is applicable to the field of tire repair services, in particular to a manual locking shaft. Background Art

[0002] A manual locking shaft is a mechanical tool commonly used in the automotive repair and tire service industries to replace or remove tires. Currently, when in use, it is only locked by a nut. When turning or performing related operations, the nut is prone to rotation, thereby loosening the wheel hub, affecting manual operation and easily causing danger. Utility Model Content

[0003] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model patent proposes a manual locking shaft, including a main shaft sleeve base, a main shaft is installed in the main shaft sleeve base, the lower end of the main shaft is located in the main shaft sleeve base, and a flange and a nylon protective sleeve are installed on the upper end. A pair of mounting holes are opened on the outer circumferential wall of the main shaft and below the flange, and a bayonet is installed in each of the pair of mounting holes. A positioning slide is also installed on the flange, and a centering screw is installed in the main shaft. A vertebral body and a locking nut are installed on the centering screw from bottom to top in sequence. A mounting groove is also opened in the vertebral body, and a pressure bearing is installed in the mounting groove through a retaining ring.

[0004] The utility model is further configured as follows: the vertebral body is in the shape of an inverted truncated cone, a locking groove is provided on the side circumference of the vertebral body, and a locking pin is inserted into the locking groove.

[0005] The utility model is further configured as follows: a pair of auxiliary tightening rods are hinged on the locking nut.

[0006] The utility model is further configured as follows: notches are provided on both the flange and the nylon protective sleeve, and the positioning slide is installed in the notches.

[0007] The utility model is further configured as follows: the vertebral body is clamped on the centering screw, and the locking nut is threadedly connected to the centering screw.

[0008] The utility model is further configured as follows: a spring is installed between the vertebral body and the locking nut, and the spring is sleeved on the centering screw.

[0009] The beneficial technical effects of this utility model patent are: the pressure bearing installed in the vertebral body can prevent loosening and ensure smooth operation. The design of multiple protrusions on the centering screw can be locked with the pin after 90-degree rotation, which can adapt to wheel hubs of different thicknesses. A pair of auxiliary tightening rods are installed on the locking nut to save manpower, and the installed positioning slide can also assist in fixed positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is an exploded view of the utility model.

[0012] Figure numerals: 1. spindle sleeve base, 2. spindle, 3. flange, 4. nylon protective cover, 5. positioning slide, 6. centering screw, 7. cone, 8. locking nut, 9. pressure bearing, 10. pin. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present utility model and are not intended to limit the scope of protection of the present utility model.

[0014] This utility model patent proposes a manual locking shaft, including a main shaft sleeve base 1, a main shaft 2 is installed in the main shaft sleeve base 1, the lower end of the main shaft 2 is located in the main shaft sleeve base 1, and a flange 3 and a nylon protective cover 4 are installed on the upper end. A pair of mounting holes are opened on the outer circumferential wall of the main shaft 2 and below the flange 3. A bayonet 10 is installed in each of the mounting holes. A positioning slide 5 is also installed on the flange 3. A centering screw 6 is installed in the main shaft 2. A vertebral body 7 and a locking nut 8 are installed on the centering screw 6 from bottom to top. A mounting hole is also opened in the vertebral body 7. The vertebral body 7 is in the shape of an inverted truncated cone, and a locking groove is provided on the side circumference of the vertebral body 7, and a locking pin is inserted in the locking groove; a pair of auxiliary tightening rods are hinged on the locking nut 8; the flange 3 and the nylon protective cover 4 are provided with notches, and the positioning slide 5 is installed in the notches; the vertebral body 7 is clamped on the centering screw 6, and the locking nut 8 is threadedly connected to the centering screw 6; a spring is installed between the vertebral body 7 and the locking nut 8, and the spring is sleeved on the centering screw 6.

[0015] Before use, the centering screw 6 must be pulled out from the center hole of the main shaft 2. Place the wheel hub outer ring upward on the flange 3, aligning the center hole of the wheel hub with the center hole of the flange 3. Adjust the positioning slide 5 to a suitable position to assist in fixing the wheel hub, and insert the centering screw 6 into the center holes of the wheel hub and the flange 3; rotate the centering screw 6 clockwise to lock the teeth with the bayonet pin. The multiple protrusions of the centering screw 6 can be locked with the bayonet pin 10 after 90 degrees of rotation, thus achieving a connection between the centering screw 6 and the main shaft sleeve base 1, which can accommodate wheel hubs of different thicknesses; tighten the locking nut 8 to complete the wheel hub locking. The pressure bearing 9 installed in the vertebral body 7 can prevent loosening and ensure smooth operation. Then proceed with tire disassembly and assembly; loosen the locking nut, rotate counterclockwise and pull out the centering screw 6.

[0016] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and components may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0017] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are intended solely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In addition, it should be noted that in the description of this utility model, unless otherwise clearly specified or 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0019] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0020] Thus far, the technical solutions of this utility model patent have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this utility model patent is obviously not limited to these specific embodiments. Without departing from the principles of this utility model patent, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of this utility model patent.

Claims

1. Manual locking shaft, including a main shaft sleeve base (1), characterized by: A main shaft (2) is installed in the main shaft sleeve base (1), the lower end of the main shaft (2) is located in the main shaft sleeve base (1), and a flange (3) and a nylon protective sleeve (4) are installed on the upper end. A pair of mounting holes are opened on the outer circumferential wall of the main shaft (2) and located below the flange (3), and a bayonet (10) is installed in each of the mounting holes. A positioning slide (5) is also installed on the flange (3). A centering screw (6) is installed in the main shaft (2), and a vertebra (7) and a locking nut (8) are installed on the centering screw (6) from bottom to top. A mounting groove is also opened in the vertebral body (7), and a pressure bearing (9) is installed in the mounting groove through a retaining ring.

2. The manual locking shaft according to claim 1, characterized in that: The vertebral body (7) is in the shape of an inverted truncated cone, and a locking groove is provided on the side circumferential surface of the vertebral body (7), wherein a locking pin is inserted into the locking groove.

3. The manual locking shaft according to claim 1, characterized in that: A pair of auxiliary tightening rods are hinged on the locking nut (8).

4. The manual locking shaft according to claim 1, characterized in that: The flange (3) and the nylon protective sleeve (4) are both provided with notches, and the positioning slide (5) is installed in the notches.

5. The manual locking shaft according to claim 1, characterized in that: The vertebral body (7) is clamped on the centering screw (6), and the locking nut (8) is threadedly connected to the centering screw (6).

6. The manual locking shaft according to claim 1, characterized in that: A spring is installed between the vertebral body (7) and the locking nut (8), and the spring is sleeved on the centering screw (6).

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