Automobile steering hollow output shaft

Abstract

The utility model discloses an automobile steering hollow output shaft which comprises a transmission shaft body, a fixing thread is arranged on the inner side wall of the transmission shaft body, two sliding grooves are formed in the inner side wall of the transmission shaft body, a clamping hole is formed in the inner side wall of each sliding groove, a connecting shaft is arranged below the transmission shaft body, and a clamping hole is formed in the inner side wall of each sliding groove. And the top end of the connecting shaft fixedly communicates with an external thread shaft barrel. According to the device, the transmission shaft body, the fixing threads, the sliding groove, the clamping hole, the connecting shaft, the external thread shaft barrel, the annular sliding way, the sliding block, the cavity, the sliding hole, the sliding rod, the clamping block and the strong spring are arranged, the fixing threads are matched with the external thread shaft barrel, the clamping block is matched with the sliding groove, the sliding rod is in sliding connection with the sliding hole, and the sliding block is in sliding connection with the annular sliding way; the clamping blocks are matched with the clamping holes, and the resilience force of the strong springs is utilized, so that the transmission shaft body and the connecting shaft can be mounted, the safety efficiency is improved, and the mounting firmness of the transmission shaft body and the connecting shaft is improved.

Description

Technical Field

[0001] The utility model relates to the field of steering shafts, in particular to a hollow output shaft for automobile steering. Background Art

[0002] The function of the steering shaft is to transmit the steering torque applied by the driver to the steering wheel to the steering gear. Its upper part is fixedly connected to the steering wheel, and the lower part is connected to the steering gear. The steering shaft passes through the steering column tube and is supported on the bearings and bushings inside the column tube. Some steering shafts not only have a certain rigidity, but also have energy absorption function, which plays a role in preventing injury.

[0003] The steering output shaft is a type of automobile drive shaft. It is usually divided into multiple sections, which are connected by universal joints. At the same time, it is used in conjunction with a hydraulic device. However, the existing output shaft has certain shortcomings when used and needs to be improved. When using the existing output shaft, it is not convenient to quickly install the sections. It is basically installed by screws. This installation method has a certain impact on actual use. To this end, we propose a hollow automobile steering output shaft to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a hollow steering output shaft for an automobile to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The top of the connecting shaft is fixedly connected with an external threaded shaft cylinder, and the outer surface of the connecting shaft is fixedly connected with an annular slide, and the inner wall of the annular slide is fixedly connected with two sliding blocks, and the inner wall of each sliding block has a cavity. The inner wall of each sliding block has a sliding hole. The inner wall of each sliding hole is slidably connected with a sliding rod, and the ends of the two sliding rods away from each other are fixedly connected with a clamping block, and the sides of the two clamping blocks close to each other are fixedly connected with a strong spring, and the ends of the two strong springs close to each other are fixedly connected with the outer surface of the sliding block.

[0007] In a further embodiment, an annular positioning groove is provided on the outer surface of the connecting shaft, and the externally threaded shaft barrel is adapted to the fixed thread.

[0008] In a further embodiment, a connection sealing gasket is sleeved on the outer surface of the connection shaft, and the connection sealing gasket is made of rubber.

[0009] In a further embodiment, each of the clamping blocks is adapted to the clamping hole, and the diameter of the connecting shaft is smaller than the diameter of the transmission shaft body.

[0010] In a further embodiment, the clamping block is made of steel, and the outer surface of the connecting shaft is sprayed with an anti-rust layer.

[0011] In a further embodiment, each of the clamping blocks is adapted to the slide groove, and the diameter of the cavity is adapted to the horizontal length of the slide rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The device is provided with a transmission shaft body, a fixed thread, a slide groove, a clamping hole, a connecting shaft, an externally threaded shaft cylinder, an annular slide, a sliding block, a cavity, a sliding hole, a sliding rod, a clamping block and a strong spring. The fixed thread is adapted to the externally threaded shaft cylinder, the clamping block is adapted to the slide groove, the sliding rod is slidably connected to the sliding hole, the sliding block is slidably connected to the annular slide groove, the clamping block is adapted to the clamping hole, and the rebound force of the strong spring can conveniently and quickly install the transmission shaft body and the connecting shaft, thereby improving safety efficiency and improving the installation firmness of the transmission shaft body and the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the three-dimensional diagram of the transmission shaft in the hollow steering output shaft of an automobile.

[0015] Figure 2 This is a sectional view of the front view of the connecting shaft in the hollow steering output shaft of an automobile.

[0016] Figure 3 This is a bottom view of the connecting shaft in the hollow steering output shaft of an automobile.

[0017] Figure 4 Hollow output shaft for car steering Figure 2 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0018] In the figure: 1. Drive shaft body; 2. Fixed thread; 3. Slide groove; 4. Clamping hole; 5. Connecting shaft; 6. Externally threaded shaft cylinder; 7. Annular slideway; 8. Sliding block; 9. Cavity; 10. Sliding hole; 11. Sliding rod; 12. Clamping block; 13. Strong spring; 14. Connecting sealing gasket; 15. Annular positioning groove. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4In the present invention, a hollow steering output shaft of an automobile comprises a transmission shaft body 1, the inner side wall of the transmission shaft body 1 is provided with a fixed thread 2, the inner side wall of the transmission shaft body 1 is provided with two slide grooves 3, the inner side wall of each slide groove 3 is provided with a card hole 4, a connecting shaft 5 is provided below the transmission shaft body 1, the top end of the connecting shaft 5 is fixedly connected with an externally threaded shaft cylinder 6, the outer surface of the connecting shaft 5 is fixedly connected with an annular slideway 7, the inner wall of the annular slideway 7 is slidably connected with two sliding blocks 8, the inner wall of each sliding block 8 is provided with a cavity 9, the inner side wall of each cavity 9 is provided with a sliding hole 10, the inner wall of each sliding hole 10 is slidably connected with a sliding rod 11, and the two sliding rods The ends of the two blocks 11 that are away from each other are fixedly connected with a clamping block 12, and the sides of the two clamping blocks 12 that are close to each other are fixedly connected with a strong spring 13. The ends of the two strong springs 13 that are close to each other are fixedly connected to the outer surface of the sliding block 8. The fixed thread 2 is adapted to the external threaded shaft cylinder 6, the clamping block 12 is adapted to the slide groove 3, the slide rod 11 is slidably connected to the slide hole 10, the sliding block 8 is slidably connected to the annular slideway 7, the clamping block 12 is adapted to the clamping hole 4, and the rebound force of the strong spring 13 can conveniently and quickly install the transmission shaft body 1 and the connecting shaft 5, which improves safety efficiency and improves the installation firmness of the transmission shaft body 1 and the connecting shaft 5.

[0023] An annular positioning groove 15 is provided on the outer surface of the connecting shaft 5, and the externally threaded shaft cylinder 6 is adapted to the fixed thread 2. The annular positioning groove 15 can be used to conveniently install the connecting shaft 5 on the car. A connecting sealing gasket 14 is provided on the outer surface of the connecting shaft 5. The connecting sealing gasket 14 is made of rubber. The connecting sealing gasket 14 can improve the installation sealing effect of the connecting shaft 5 and the car. Each clamping block 12 is adapted to the clamping hole 4. The diameter value of the connecting shaft 5 is smaller than the diameter value of the transmission shaft body 1, which can improve the tightness of the installation of the clamping block 12 and the clamping hole 4.

[0024] The clamping block 12 is made of steel, and the outer surface of the connecting shaft 5 is sprayed with an anti-rust layer, which can prevent the connecting shaft 5 from rusting. Each clamping block 12 is adapted to the slide groove 3, and the diameter value of the cavity 9 is adapted to the horizontal length value of the slide rod 11, which can facilitate the insertion of the slide rod 11 into the interior of the cavity 9 without affecting the installation of the clamping block 12 and the clamping hole 4.

[0025] The working principle of this utility model is:

[0026] First, when installing the transmission shaft body 1 and the connecting shaft 5, make the externally threaded shaft cylinder 6 level with the transmission shaft body 1, and insert the externally threaded shaft cylinder 6 into the transmission shaft body 1, and press the block 12 to make the slide rod 11 go deep into the cavity 9, and at the same time put the block 12 into the slide groove 3, then rotate the connecting shaft 5 to connect the externally threaded shaft cylinder 6 with the fixed thread 2, and combine the sliding block 8 with the annular slideway 7 for sliding connection, so that the position of the block 12 can remain unchanged. Then, when the externally threaded shaft cylinder 6 reaches the top, the rebound force of the strong spring 13 causes the block 12 to be inserted into the card hole 4. The above is the entire usage process of the utility model.

[0027] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hollow steering output shaft for an automobile, characterized by: The invention comprises a transmission shaft body (1), wherein the inner side wall of the transmission shaft body (1) is provided with a fixed thread (2), the inner side wall of the transmission shaft body (1) is provided with two slide grooves (3), the inner side wall of each slide groove (3) is provided with a clamping hole (4), a connecting shaft (5) is provided below the transmission shaft body (1), the top end of the connecting shaft (5) is fixedly connected to an external threaded shaft cylinder (6), the outer surface of the connecting shaft (5) is fixedly connected to an annular slideway (7), and the inner wall of the annular slideway (7) is slidably connected to two sliding Block (8), the inner wall of each sliding block (8) is provided with a cavity (9), the inner wall of each cavity (9) is provided with a sliding hole (10), the inner wall of each sliding hole (10) is slidably connected to a sliding rod (11), the ends of the two sliding rods (11) that are away from each other are fixedly connected to a clamping block (12), the sides of the two clamping blocks (12) that are close to each other are fixedly connected to a strong spring (13), and the ends of the two strong springs (13) that are close to each other are fixedly connected to the outer surface of the sliding block (8).

2. The hollow steering output shaft for automobile according to claim 1, characterized in that: An annular positioning groove (15) is provided on the outer surface of the connecting shaft (5), and the externally threaded shaft cylinder (6) is adapted to the fixed thread (2).

3. The hollow steering output shaft for automobile according to claim 1, characterized in that: The outer surface of the connecting shaft (5) is sleeved with a connecting sealing gasket (14), and the connecting sealing gasket (14) is made of rubber.

4. The hollow steering output shaft for automobile according to claim 1, characterized in that: Each of the clamping blocks (12) is adapted to the clamping hole (4), and the diameter of the connecting shaft (5) is smaller than the diameter of the transmission shaft body (1).

5. The hollow steering output shaft for automobile according to claim 1, characterized in that: The clamping block (12) is made of steel, and the outer surface of the connecting shaft (5) is sprayed with an anti-rust layer.

6. The hollow steering output shaft for automobile according to claim 1, characterized in that: Each of the clamping blocks (12) is adapted to the slide groove (3), and the diameter of the cavity (9) is adapted to the horizontal length of the slide rod (11).

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