Telescopic mechanism

Abstract

The utility model discloses a telescopic mechanism, and belongs to the technical field of telescopic mechanisms. The telescopic mechanism comprises a motor, a telescopic movement mechanism and a speed reducer arranged between the motor and the telescopic movement mechanism. The telescopic movement mechanism comprises a rotating shaft center driven by the motor to rotate, an axial movement fixing base arranged on the rotating shaft center in a sleeving mode and a telescopic movement sleeve arranged on the axial movement fixing base in a sleeving mode, and a rail groove which is arranged in an up-down inclined mode is formed in the outer circumference of the rotating shaft center. A ball movement mechanism matched with the rail groove is fixed to the telescopic movement sleeve, and the telescopic movement sleeve is made to move in the axial direction of the rotating axis through matching of the ball movement mechanism and the rail groove. The embodiment of the utility model has the beneficial effects that the ball movement mechanism and the telescopic movement sleeve adopt a double-side fixing mode of inserting type buckle positions and screws, so that the reliability and the service life of the product are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a telescopic mechanism. BACKGROUND

[0002] Most of the existing telescopic mechanisms adopt the mode of track plus ball, and the ball positioning adopts the mode of single screw single side fixation, which has a problem that when the telescopic movement encounters large resistance, the guide rail will give the ball a large reverse force, and since the ball positioning is single screw single side fixation, the positioning arm will be deformed or even broken, greatly affecting the reliability and service life of the product. SUMMARY

[0003] The utility model discloses an embodiment aims to provide a telescopic mechanism, which adopts the mode of plug-in buckle plus screw double side fixation without reducing the current use function parameters and product cost, greatly increasing the reliability and service life of the product, thereby solving at least one technical problem involved in the background art.

[0004] In order to solve the above technical problems, the utility model is realized as follows:

[0005] An embodiment of the utility model provides a telescopic mechanism, including motor, telescopic movement mechanism and the speed reducer who configures between the motor and the telescopic movement mechanism, the telescopic movement mechanism includes the rotation axis center that the motor drives rotation, the axial movement fixed base of setting on the rotation axis center and the telescopic movement set of setting on the axial movement fixed base, the outer circle of rotation axis center is equipped with the track groove that is up and down inclined arrangement, the telescopic movement set is fixed with the ball movement mechanism that cooperates with the track groove, through the cooperation of ball movement mechanism and track groove makes telescopic movement set along the axial direction movement of rotation axis center, ball movement mechanism includes ball positioning seat, rotatable group in ball positioning seat and with track groove cooperation's ball and the screw of ball positioning seat fixed in telescopic movement set, the buckle groove for ball positioning seat insertion clamping is set up on telescopic movement set.

[0006] Optionally, the axial movement fixed base includes a strip-shaped groove opened along the vertical direction, and the ball passes through the strip-shaped groove and cooperates with the track groove.

[0007] The embodiment of the utility model has the advantages of:

[0008] Without reducing the current use function parameters and product cost, the plug-in buckle plus screw double side fixation mode is adopted between the ball movement mechanism and the telescopic movement set, greatly increasing the reliability and service life of the product. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0010] Fig. 1 The overall three-dimensional structure schematic diagram of the telescopic mechanism is provided in the present application.

[0011] Fig. 2 The three-dimensional exploded structure schematic diagram of the telescopic mechanism is provided in the present application.

[0012] Fig. 3 The cross-sectional structure schematic diagram of the telescopic movement mechanism is provided in the present application. DETAILED DESCRIPTION

[0013] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0014] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" and the like are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.

[0015] Please refer to Figs. 1 to 3 The present application provides a telescopic mechanism, comprising a motor 1, a telescopic movement mechanism 2, and a speed reducer 3 arranged between the motor 1 and the telescopic movement mechanism 2.

[0016] The telescopic movement mechanism 2 comprises a rotating shaft 21 driven to rotate by the motor 1, an axial movement fixing seat 22 sleeved on the rotating shaft 21, and a telescopic movement sleeve 23 sleeved on the axial movement fixing seat 22.

[0017] The outer periphery of the rotating shaft 21 is provided with a track groove 211 arranged in an up-down inclined manner, and the telescopic movement sleeve 23 is fixed with a ball movement mechanism 24 matched with the track groove 211. The telescopic movement sleeve 23 moves along the axial direction of the rotating shaft 21 through the cooperation of the ball movement mechanism 24 and the track groove 211.

[0018] The ball movement mechanism 24 comprises a ball positioning seat 241, a ball 242 rotatably matched with the ball positioning seat 241 and matched with the track groove 211, and a screw 243 for fixing the ball positioning seat 241 to the telescopic movement sleeve 23.

[0019] The telescopic movement sleeve 23 is provided with a buckle groove 231 for inserting and clamping the ball positioning seat 241. The buckle groove 231 can be used to adopt the double-side fixing mode of the insert buckle and the screw between the ball movement mechanism 24 and the telescopic movement sleeve 23, greatly increasing the reliability and service life of the product.

[0020] The axial movement fixing seat 22 comprises a strip-shaped groove 221 opened along the vertical direction, and the ball 242 passes through the strip-shaped groove 221 and matches with the track groove 211.

[0021] It should be noted that the terms "comprising", "containing" or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that comprises a list of elements not only includes those elements, but also includes other elements not expressly listed or inherent to such process, method, article or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0022] In addition, it should be noted that the scope of the methods and systems in the embodiments of the present application is not limited to the order of functions shown or discussed, and can also include functions performed in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described methods can be performed in an order different from the described order, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0023] The embodiments of the present application are described above with reference to the drawings; however, the present application is not limited to the specific embodiments described above, but the specific embodiments described above are merely illustrative rather than restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection of the present application.

Claims

1. A telescoping mechanism, characterized by, The application relates to a telescopic motion mechanism, which comprises a motor, a telescopic motion mechanism and a speed reducer arranged between the motor and the telescopic motion mechanism, the telescopic motion mechanism comprises a rotating shaft driven to rotate by the motor, an axial motion fixing base sleeved on the rotating shaft and a telescopic motion sleeve sleeved on the axial motion fixing base, the outer periphery of the rotating shaft is provided with a track groove arranged in an up-down inclined mode, the telescopic motion sleeve is fixed with a ball motion mechanism matched with the track groove, the telescopic motion sleeve moves along the axial direction of the rotating shaft through the cooperation of the ball motion mechanism and the track groove, the ball motion mechanism comprises a ball positioning base, balls rotatably assembled on the ball positioning base and matched with the track groove and screws for fixing the ball positioning base on the telescopic motion sleeve, and the telescopic motion sleeve is provided with a buckle groove for inserting and clamping the ball positioning base.

2. The telescoping mechanism of claim 1, wherein, The axial motion fixing base comprises a strip-shaped groove opened along the vertical direction, and the balls pass through the strip-shaped groove to be matched with the track groove.

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