Passenger car seat adjusting gear

Abstract

The utility model discloses a seat adjusting gear of a passenger car. The passenger car seat adjusting gear comprises a gear body and is characterized in that the gear body is integrally formed, straight teeth are arranged on the outer circumferential face of the gear body, a shaft body is arranged in the middle of the gear body and axially extends along the two ends of the gear body, an assembly hole is formed in the shaft body, and installation grooves are symmetrically formed in the two end faces of the gear body. The utility model has the advantages of high precision and high strength.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission gears, in particular to a passenger car seat adjustment gear. Background Art

[0002] Gear transmission refers to a device that transmits motion and power by a gear pair. It is the most widely used mechanical transmission method in various modern equipment. Its transmission is relatively accurate and has the advantages of high efficiency, compact structure, reliable operation and long life. It is widely used in life.

[0003] The existing Chinese utility model patent with publication number CN219115283U discloses a car seat transmission gear, which includes a driving shaft and a connecting block, the outer end of the driving shaft is provided with a connecting assembly, and the outer end of the connecting assembly is connected to a first connecting ring, the front end of the first connecting ring is connected to a front protective ring, and the outer end of the first connecting ring is installed with a load-bearing wheel, the inner end of the load-bearing wheel is connected with a slope block, and the inside of the load-bearing wheel is provided with a mounting groove; the connecting block is arranged at the outer end of the load-bearing wheel, and the outer end of the connecting block is connected to a fixing block, the rear side of the load-bearing wheel is provided with a connecting plate, the rear end of the connecting plate is installed with a second connecting ring, and the rear end of the second connecting ring is connected to a rear protective ring.

[0004] The problem is that all components are connected by welding, and the welded parts cannot guarantee the accuracy and strength of the gears. Utility Model Content

[0005] The utility model aims to provide a passenger car seat adjustment gear with high precision and high strength in view of the deficiencies in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a passenger car seat adjustment gear, including a gear body, characterized in that: the gear body is integrally formed, the outer circumferential surface of the gear body is provided with spur teeth, the middle of the gear body is provided with a shaft body, the shaft body extends axially along the two ends of the gear body, an assembly hole is opened in the shaft body, and mounting grooves are symmetrically provided on both end surfaces of the gear body.

[0007] Preferably, the assembly hole is formed by a combination of a circumferentially arranged arcuate convex surface and an arcuate concave surface.

[0008] Preferably, the groove surface of the installation groove and the joint between the installation groove and the shaft body are arc-shaped. The arc-shaped surface treatment avoids gap burrs.

[0009] Compared with the prior art, the utility model has the following advantages: through the one-piece molding method, the lack of precision and strength caused by welding is avoided, and the one-time molding improves the structural strength of the product, making it difficult for the gear to break during transmission movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is an axonometric view of the present utility model.

[0011] Figure 2 is a front view of the present utility model.

[0012] Wherein, 1 - gear body, 2 - straight teeth, 3 - shaft body, 4 - assembly hole, 5 - mounting groove. Specific embodiments

[0013] The present utility model will be further clarified below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the present utility model, those skilled in the art's various equivalent modifications of the present utility model all fall within the scope defined by the appended claims of this application.

[0014] As Figures 1 to 2 shown, the passenger car seat adjustment gear includes a gear body 1, which is integrally formed by pressing stainless steel powder. Through powder smelting and processing, the strength and precision of the gear body 1 are improved, avoiding problems such as structural deformation and uneven strength caused by welding. The outer circumferential surface of the gear body 1 is provided with straight teeth 2, and a shaft body 3 is provided in the middle of the gear body 1. The shaft body 3 axially extends along both ends of the gear body 1. An assembly hole 4 is opened in the shaft body 3. The assembly hole 4 is formed by the combination of arc-shaped convex surfaces and arc-shaped concave surfaces arranged in a circle. Since the assembly hole 4 needs to cooperate with the drive shaft on the seat, the most difficult thing to handle in the welding method is the connection precision between the shaft body 3 and the gear body 1. Welding connection is likely to cause precision deviation, while integral forming can increase the connection precision and maintain the structural strength. The two end faces of the gear body 1 are symmetrically provided with arc-shaped mounting grooves 5. The groove surface of the mounting groove 5 and the connection between the mounting groove 5 and the shaft body 3 are arc-shaped surfaces. By processing the arc-shaped surfaces at the connection, burrs at the connection between the mounting groove 5 and the shaft body 3 after pressing are prevented.

[0015] The above description shows and describes the preferred embodiments of the present utility model. As mentioned above, it should be understood that the present utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in related fields. And the changes and alterations made by those skilled in the art that do not depart from the spirit and scope of the present utility model should all be within the protection scope of the appended claims of the present utility model.

Claims

1. A passenger car seat adjustment gear, comprising a gear body, characterized in that: The gear body is integrally formed, and the outer circumferential surface of the gear body is provided with spur teeth. A shaft body is provided in the middle of the gear body, and the shaft body extends axially along both ends of the gear body. An assembly hole is opened in the shaft body, and mounting grooves are symmetrically provided on both end surfaces of the gear body.

2. The passenger car seat adjustment gear according to claim 1, characterized in that: The assembly hole is formed by the intersection and combination of the arc-shaped convex surface and the arc-shaped concave surface arranged in a circle.

3. The passenger car seat adjustment gear according to claim 1, characterized in that: The groove surface of the installation groove and the connection between the installation groove and the shaft body are arc surfaces.

Images