CN210344010U

CN210344010U - Flexible shaft structure capable of internally arranging guide pipe

Info

Publication number: CN210344010U
Application number: CN201920351189.7U
Authority: CN
Inventors: 庞媛媛; 杜万庆; 杜庆丽; 杨钧
Original assignee: Luoyang Yellow River Flexible Shaft Controller Co ltd
Current assignee: Luoyang Yellow River Flexible Shaft Controller Co ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-04-17
Anticipated expiration: 2029-03-20

Abstract

The utility model belongs to the technical field of the flexible axle, a flexible axle structure that can embed direction is proposed. The flexible shaft structure capable of being internally provided with the guide is provided with a push-pull core serving as a flexible shaft inner core; the outer part of the push-pull core is sleeved with an injection molding pipe serving as a flexible shaft outer protective pipe, and the push-pull core is of a structure capable of moving in the injection molding pipe; one end of the injection molding pipe is pressed with a joint; the joint is provided with a sleeve I and a sleeve II; the sleeve II is positioned between the sleeve I and the injection molding pipe; a stepped through hole is formed in the center of the sleeve II, and the minimum diameter of the stepped through hole is larger than the outer diameter of the push-pull core; the center of the sleeve I is provided with a through hole communicated with the stepped through hole; a rotating sleeve is internally pressed in the sleeve I; the flexible shaft structure also comprises a guide pipe sleeved on the pull rod; the guide pipe is a sleeve with one end of a ball head structure; one end of the ball head structure of the guide pipe is positioned in the rotating sleeve and is in running fit with the rotating sleeve. The utility model provides a flexible axle mounting dimension have the condition of deflection angle again during the small exercises, can make its push-and-pull smooth and easy, improve the life-span of flexible axle.

Description

Flexible shaft structure capable of internally arranging guide pipe

Technical Field

The utility model belongs to the technical field of the flexible axle processing, concretely relates to flexible axle structure that can embed stand pipe.

Background

Along with the change of market patterns, the product structures in various application fields are also diversified continuously, and people must be capable of adapting to market demands, accelerating the improvement of the adaptability of products and ensuring that the products occupy a place in intense market competition.

The existing flexible shaft structure is only suitable for the condition that the installation size is suitable or the motion deflection angle is small, and if the installation size is small and the motion deflection angle is large, the existing structure of the flexible shaft cannot be used satisfactorily.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a flexible axle structure that can embed the stand pipe.

The utility model adopts the following technical scheme for accomplishing the above purpose:

a flexible shaft structure capable of being internally provided with a guide pipe is provided with a push-pull core serving as a flexible shaft inner core; the outer part of the push-pull core is sleeved with an injection molding pipe serving as a flexible shaft outer protective pipe, and the push-pull core is of a structure capable of moving in the injection molding pipe; one end of the injection molding pipe is in compression joint with a joint; the joint has two sleeves with different diameters: a sleeve I and a sleeve II; the sleeve II is positioned between the sleeve I and the injection molding pipe; the diameter of the sleeve I is larger than that of the sleeve II, and the sleeve I and the sleeve II are integrated through conical surface transition; a stepped through hole is formed in the center of the sleeve II, and the minimum diameter of the stepped through hole is larger than the outer diameter of the push-pull core; the center of the sleeve I is provided with a through hole communicated with the stepped through hole; the through hole in the center of the sleeve I is provided with an equal-diameter hole I, an expanding hole I, an equal-diameter hole II communicated with the expanding hole I and an expanding hole II communicated with the equal-diameter hole, wherein the equal-diameter hole I and the expanding hole I are sequentially arranged from a near step through hole end to a far step through hole end; a rotating sleeve is internally pressed in the sleeve I; the flexible shaft structure also comprises a guide pipe sleeved on the pull rod; the guide pipe is a sleeve with one end of a ball head structure; one end of the ball head structure of the guide pipe is positioned in the rotating sleeve and is in running fit with the rotating sleeve, and the other end of the guide pipe extends out of the joint.

The steering sleeve is provided with an equal-diameter section II matched with the equal-diameter hole II, an expanding section matched with the expanding hole I and an equal-diameter section I matched with the equal-diameter hole I, and the equal-diameter section I, the expanding hole I and the equal-diameter section II are integrally formed; an annular boss protruding outwards is arranged on the outer wall surface of the end head of the equal-diameter section I, and the annular boss forms a limiting boss of the steering sleeve; the center of the steering sleeve is provided with a spherical hole matched with the ball head of the guide pipe; the center of the steering sleeve is also provided with a through hole for the push-pull core to pass through, and the through hole for the push-pull core to pass through is communicated with the spherical hole to form an axial through hole of the steering sleeve.

The flexible shaft structure capable of internally arranging the guide pipe provided by the utility model adopts the taper hole made in the connector to ensure the swing amount of the guide pipe, and is suitable for the condition of smaller installation size; the front end in the connector is made into a cone shape to ensure the swinging amount of the guide pipe, and a hole for placing the rotating sleeve is arranged behind the cone-shaped hole. The guide pipe is pressed in the rotating sleeve, so that the structure not only realizes the guide function of the flexible shaft, but also reduces the installation size, and can meet the requirements of small installation size movement and deflection.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the middle rotating sleeve of the present invention.

Fig. 3 is a schematic structural view of the middle guide tube of the present invention.

Fig. 4 is a schematic structural diagram of the middle joint of the present invention.

In the figure: 1. the injection molding pipe comprises a pull rod, 2, a guide pipe, 3, a push-pull core, 4, a rotating sleeve, 4-1, equal-diameter sections I, 4-2, expanding holes I, 4-3, equal-diameter sections II, 4-4, annular bosses, 5, connectors, 5-1, sleeves I, 5-1-1, equal-diameter holes I, 5-1-2, expanding holes I, 5-1-3, equal-diameter holes II, 5-1-4, expanding holes II, 5-2, sleeves II, 6 and an injection molding pipe.

Detailed Description

The invention is described in connection with the accompanying drawings and the embodiments:

as shown in fig. 1, a flexible shaft structure capable of being internally provided with a guide tube is provided with a push-pull core 3 as a flexible shaft inner core; an injection molding pipe 6 serving as a flexible shaft outer protective pipe is sleeved outside the push-pull core 3, and the push-pull core 3 is of a structure capable of moving in the injection molding pipe; one end of the injection molding pipe 6 is pressed with a joint 5; with reference to fig. 3, the joint 5 has two sleeves of different diameters: the sleeve I5-1 and the sleeve II 5-2; the sleeve II 5-2 is positioned between the sleeve I5-1 and the injection molding pipe 6; the diameter of the sleeve I5-1 is larger than that of the sleeve II 5-2, and the sleeve I5-1 and the sleeve II 5-2 are integrated through conical surface transition; a stepped through hole is formed in the center of the sleeve II 5-2, and the minimum diameter of the stepped through hole is larger than the outer diameter of the push-pull core 3; the center of the sleeve I5-1 is provided with a through hole communicated with the stepped through hole; the through hole in the center of the sleeve I is provided with an equal-diameter hole I5-1-1, an expanding hole I5-1-2, an equal-diameter hole II 5-1-3 communicated with the expanding hole I and an expanding hole II 5-1-4 communicated with the equal-diameter hole, which are sequentially arranged from the near step through hole end to the far step through hole end; a rotating sleeve 4 is pressed in the sleeve I5-1; referring to fig. 2, the steering sleeve 4 has an equal diameter section ii 4-3 matching with the equal diameter hole ii, an expanded diameter section 4-2 matching with the expanded diameter hole i, and an equal diameter section i 4-1 matching with the equal diameter hole i, and the equal diameter section i, the expanded diameter hole i, and the equal diameter section ii are integrally formed; the outer wall surface of the end head of the equal-diameter section I is provided with an annular boss 4-4 protruding outwards, and the annular boss forms a limiting boss of the steering sleeve; the center of the steering sleeve is provided with a spherical hole matched with the ball head of the guide pipe; the center of the steering sleeve is also provided with a through hole for the push-pull core to pass through, and the through hole for the push-pull core to pass through is communicated with the spherical hole to form an axial through hole of the steering sleeve; the flexible shaft structure also comprises a guide tube 2 sleeved on the pull rod; with reference to fig. 3, the guide tube 2 is a sleeve with a ball head structure at one end; the one end of stand pipe bulb structure be located the rotation cover 4 in, and with rotation cover 4 normal running fit, the other end of stand pipe 2 stretches out joint 5. The joint 5 can fix the flexible shaft on a vehicle; the pull rod 1 is connected with the connecting piece through a nut; the connecting piece is connected with a corresponding component on the vehicle.

Claims

1. The utility model provides a flexible axle structure of guide tube can embed which characterized in that: the flexible shaft structure is provided with a push-pull core serving as a flexible shaft inner core; the outer part of the push-pull core is sleeved with an injection molding pipe serving as a flexible shaft outer protective pipe, and the push-pull core is of a structure capable of moving in the injection molding pipe; one end of the injection molding pipe is in compression joint with a joint; the joint has two sleeves with different diameters: a sleeve I and a sleeve II; the sleeve II is positioned between the sleeve I and the injection molding pipe; the diameter of the sleeve I is larger than that of the sleeve II, and the sleeve I and the sleeve II are integrated through conical surface transition; a stepped through hole is formed in the center of the sleeve II, and the minimum diameter of the stepped through hole is larger than the outer diameter of the push-pull core; the center of the sleeve I is provided with a through hole communicated with the stepped through hole; the through hole in the center of the sleeve I is provided with an equal-diameter hole I, an expanding hole I, an equal-diameter hole II communicated with the expanding hole I and an expanding hole II communicated with the equal-diameter hole, wherein the equal-diameter hole I and the expanding hole I are sequentially arranged from a near step through hole end to a far step through hole end; a rotating sleeve is internally pressed in the sleeve I; the flexible shaft structure also comprises a guide pipe sleeved on the pull rod; the guide pipe is a sleeve with one end of a ball head structure; one end of the ball head structure of the guide pipe is positioned in the rotating sleeve and is in running fit with the rotating sleeve, and the other end of the guide pipe extends out of the joint.

2. The flexible shaft structure capable of being internally provided with the guide tube as claimed in claim 1, wherein: the steering sleeve is provided with an equal-diameter section II matched with the equal-diameter hole II, an expanding section matched with the expanding hole I and an equal-diameter section I matched with the equal-diameter hole I, and the equal-diameter section I, the expanding hole I and the equal-diameter section II are integrally formed; an annular boss protruding outwards is arranged on the outer wall surface of the end head of the equal-diameter section I, and the annular boss forms a limiting boss of the steering sleeve; the center of the steering sleeve is provided with a spherical hole matched with the ball head of the guide pipe; the center of the steering sleeve is also provided with a through hole for the push-pull core to pass through, and the through hole for the push-pull core to pass through is communicated with the spherical hole to form an axial through hole of the steering sleeve.