CN212161648U

CN212161648U - Telescopic mechanism

Info

Publication number: CN212161648U
Application number: CN202020819541.8U
Authority: CN
Inventors: 谢伟群; 汪东
Original assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Current assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-12-15
Anticipated expiration: 2030-05-15

Abstract

The utility model is suitable for a mechanical transmission field provides a telescopic machanism. The telescopic machanism includes: the lifting assembly comprises a moving piece and a driver, and the driver is used for driving the moving piece to move up and down; the cooperation assembly comprises a guide rod, a sliding block and an elastic piece, the sliding block is used for being connected with a target structure, the moving piece and the sliding block are in up-and-down sliding connection with the guide rod, and the elastic piece is used for applying upward-moving reset force to the sliding block; a control assembly having a first position contact and a second position contact; when the slide block reaches or passes through the first position contact and the moving piece reaches the second position contact, the driver stops working; when the slide block reaches or passes the first position contact and the moving member does not reach the second position contact, the driver drives the moving member to move downwards. The utility model provides a telescopic machanism can improve the convenience of operation.

Description

Telescopic mechanism

Technical Field

The utility model belongs to the mechanical transmission field especially relates to a telescopic machanism.

Background

The existing telescopic mechanism mostly adopts the matching of a motor, a screw rod and a sliding block to realize the telescopic of a target structure, and the target structure can be a camera or other functional modules. Specifically, the target structure is fixed on a sliding block, a screw rod is in sliding connection with the sliding block, and a motor drives the screw rod to rotate so that the sliding block and the target structure move up and down along the extending direction of the screw rod. In this way, no matter the target structure is extended or retracted, a control interface (assumed to be a touch screen control operation) needs to be opened, and a command icon is triggered to send a signal for starting a motor, so that the target structure is extended or retracted. In practical use, under the condition that the target structure extends out, a consumer hopes that the target structure can be triggered to shrink and reset in a mode of pressing the target structure by hands without operating through a control interface, so that the effect of convenient operation is achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a telescopic machanism its convenience that aims at improving the operation.

A telescoping mechanism adapted for use in elevating movement of a target structure, comprising:

the lifting assembly comprises a moving piece and a driver, and the driver is used for driving the moving piece to move up and down;

a cooperating assembly including a slider for connecting to the target structure and an elastic member for applying an upward-moving restoring force to the slider to restore the slider to abut the moving member;

the control assembly is provided with a first position contact and a second position contact, the first position contact is positioned in the moving path of the sliding block, and the second position contact is positioned in the moving path of the moving piece;

when the sliding block moves from top to bottom and reaches or passes through the first position contact and the moving piece is positioned at the second position contact, the driver stops working; when the sliding block moves from top to bottom and reaches or passes through the first position contact and the moving member is not positioned at the second position contact, the driver drives the moving member to move downwards and moves the moving member to the second position contact.

Optionally, the control assembly includes a first trigger switch located at the first position contact and a second trigger switch located at the second position contact; when the sliding block abuts against the first trigger switch and the moving piece abuts against the second trigger switch, the driver stops working; when the sliding block abuts against the first trigger switch and the moving member does not abut against the second trigger switch, the driver drives the moving member to move downwards until the moving member abuts against the second trigger switch.

Optionally, when the moving member abuts against the second trigger switch, the lower surface of the slider abuts against the first trigger switch.

Optionally, the control assembly further includes a flexible circuit board, and the flexible circuit board is electrically connected to the first trigger switch and the second trigger switch and is used for controlling the driver to start or stop working.

Optionally, the cooperative component further includes a guide rod extending up and down, and the sliding block and the moving member are in sliding connection with the guide rod.

Optionally, the slider includes connecting portion, conflict portion and the supporting part of connecting in order, connecting portion sliding connection the connecting portion of guide arm, conflict portion is in the slider can reach or pass through when moving down first position contact, the supporting part is used for connecting the target structure.

Optionally, the elastic member is a spring.

Optionally, the lifting assembly further includes a screw, the moving member is screwed to the screw, and the driver is configured to drive the screw to rotate so as to move the moving member up and down.

Optionally, the driver is a motor, an output shaft of the driver is perpendicular to the extending direction of the screw rod, and the lifting assembly further includes a transmission structure for transmitting the torque of the driver to the screw rod.

Optionally, the transmission structure includes a spur gear connected to the output shaft of the driver, a spur gear engaged with the spur gear, and a transmission shaft connected to the spur gear and extending vertically, and the transmission shaft transmits the torque from the spur gear to the screw.

The utility model provides a cell-phone camera device, includes the camera and connects the camera is used for ordering about the telescopic machanism that the camera goes up and down, telescopic machanism is as above-mentioned telescopic machanism.

The application provides a telescopic machanism and cell-phone camera device's beneficial effect lies in: compared with the prior art, through the cooperation design of lifting unit, cooperation subassembly and control assembly, the operator can be through the flexible in order to realize target structure of opening and close of direct control driver, also can trigger target structure's shrink operation through the mode of pressing target structure to improve the convenience of operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a partial schematic view of a telescoping mechanism provided in accordance with an embodiment of the present disclosure, which is a front view;

FIG. 2 is a schematic diagram of the cooperation between the cooperating assembly and the moving member and the first position contact according to an embodiment of the present disclosure, which is a side view;

FIG. 3 is a schematic view of a connection between a cooperating assembly and a lifting assembly according to an embodiment of the present disclosure;

fig. 4 is a schematic perspective view of a telescoping mechanism according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Example one

Referring to fig. 1 to 4, the present embodiment provides a telescopic mechanism, which is suitable for the lifting movement of a target structure. The target structure can be a camera or other structures, and the target structure can be applicable as long as the target structure has the operation requirement of lifting and moving.

The telescoping mechanism includes a lift assembly 20, a cooperating assembly 30, and a control assembly 40.

The lifting assembly 20 includes a moving member 21 and a driver 22, and the driver 22 is used for driving the moving member 21 to move up and down.

The cooperative assembly 30 includes a slider 32 for connecting to a target structure, and an elastic member 33 for applying a restoring force moving upward to the slider 32 to restore the slider 32 to abut against the mover 21.

The target structure is secured to the slide 32 by a threaded connection, snap-fit connection, or other connection, and moves with the slide 32. The slider 32 is located between the elastic member 33 and the moving member 21, and is restricted by the moving member 21 while being biased upward by the elastic member 33. The moving member 21 can move up and down under the driving of the driver 22, and under the non-external force, the sliding block 32 abuts against the moving member 21 under the restoring force of the elastic member 33 and moves up and down along with the moving member 21.

The control assembly 40 is used to trigger the start and stop of the actuator 22. The control component 40 is provided with a first position contact 41 and a second position contact 42, the first position contact 41 is positioned in the moving path of the slide block 32, and the second position contact 42 is positioned in the moving path of the moving member 21; when the slide block 32 moves from top to bottom and reaches or passes the first position contact 41 and the moving member 21 is at the second position contact 42, the driver 22 stops working; when the slide block 32 moves from top to bottom and reaches or passes the first position contact 41 and the moving member 21 is not at the second position contact 42, the driver 22 drives the moving member 21 to move downward and move the moving member to the second position contact 42.

The process of moving the target structure upwards is as follows: the actuator 22 drives the moving member 21 to move upward, and the sliding block 32 moves upward with the moving member 21 under the reset of the elastic member 33, so as to realize the extension of the target structure.

The target structure can be moved downwards in two ways, the first is: the actuator 22 drives the moving member 21 to move downwards, the sliding block 32 moves downwards under the pressure of the moving member 21 (at this time, the elastic member 33 is further compressed), the target structure moves downwards along with the moving member, when the moving member 21 abuts against the second position contact 42 downwards (the sliding block 32 reaches or passes the first position contact 41), the actuator 22 stops working, and the target structure reaches the designed storage position, so that the target structure is contracted; and the second method comprises the following steps: when the target structure is pressed by a human hand, the elastic member 33 is compressed to move the slider 32 downward, and at this time, the moving member 21 does not move. When the slide block 32 passes or reaches the first position contact 41 downwards (the moving member 21 does not reach the second position contact 42), the actuator 22 is triggered to operate, and the actuator 22 drives the moving member 21 to move downwards until the moving member 21 is at the second position contact 42. The target structure reaches the designed accommodating position, and the target structure is contracted.

It will be appreciated by those skilled in the art that the target structure moves up and down to reciprocate between the use and stowed positions. Correspondingly, the first position contact 41 is located in the path range of the up and down movement of the slider 32, the first position contact 41 has an uppermost position and a lowermost position, and the uppermost position of the first position contact 41 is lower than the position of the slider 32 when the target structure is located at the use position, so that the target structure does not trigger the operation of the actuator 22 when the target structure is located at the use position. The lowest position of the first position contact 41 is a position where it abuts the slider 32 when the target structure is in the stowed position, so that the operation of the actuator 22 can be triggered when the target structure is in the stowed position. When the moving member 21 abuts the second position contact 42 with the first position contact 41 located at the lowest position, the slider 32 abuts the first position contact 41. When the moving member 21 abuts the second position contact 42 with the first position contact 41 positioned between the uppermost position and the lowermost position, the slider 32 is positioned below the first position contact 41.

It should be noted that the control of the upward movement and the control of the first downward movement of the actuator 22 on the moving member 21 can be realized by the existing control means. The driver 22 may be a motor, controlled by a control circuit. For example, when the device is used for extending or retracting a camera of a mobile phone, the device can be operated through a control interface of the mobile phone to trigger the operation of the driver 22. It should be noted that this operation and the second control of downward movement in this embodiment are optional control schemes that coexist, in other words, the user may select to trigger downward movement (power-driven) of the camera through the control interface of the mobile phone, or may trigger downward movement of the camera by manually pressing the camera. Thereby facilitating the use of the operator.

In summary, in the telescopic mechanism provided in this embodiment, the operator can directly control the opening and closing of the actuator 22 to achieve the telescopic operation of the target structure, and can trigger the telescopic operation of the target structure by pressing the target structure, thereby improving the convenience of the operation.

In another embodiment of the present application, referring to fig. 1 or fig. 4, the control assembly 40 includes a first trigger switch located at the first position contact 41 and a second trigger switch located at the second position contact 42; when the slide block 32 props against the first trigger switch and the moving piece 21 props against the second trigger switch, the driver 22 stops working; when the sliding block 32 abuts against the first trigger switch and the moving member 21 does not abut against the second trigger switch, the driver 22 drives the moving member 21 to move downwards until the moving member 21 abuts against the second trigger switch. In this embodiment, the first trigger switch and the second trigger switch are contact sensors, and have a simple structure, reliable operation, and low cost. In other embodiments, the trigger switch may be replaced with an infrared sensor or other sensor. And are not intended to be limited solely thereto.

In this embodiment, when the moving member 21 abuts the second trigger switch, the lower surface of the slider 32 abuts the first trigger switch. The first trigger switch is provided at the lowest position of the first position contact 41. In the illustrated construction, the first trigger switch is located below the slider 32, and the lower surface abuts the first trigger switch when the slider 32 moves downward to the lowest point. With this arrangement, the first trigger switch simultaneously provides a downward limit to the slider 32. In other embodiments, the first trigger switch may also be in contact with a side surface of the slider 32, which is not limited herein.

In this embodiment, the control assembly 40 includes a control circuit electrically connected to the first trigger switch, the second trigger switch, and the driver 22. The control circuit is used to control the operation of the driver 22. Preferably, the control assembly 40 further includes a flexible circuit board 50, and the control circuit is disposed on the flexible circuit board 50. The flexible circuit board 50 may be bent according to the inner space of the telescopic mechanism to facilitate reduction of the overall size of the telescopic mechanism.

In this embodiment, the cooperative component 30 further includes a guide rod 31, the guide rod 31 extends up and down, and the sliding block 32 and the moving member 21 are both slidably connected to the guide rod 31. The provision of the guide rod 31 ensures that the slider 32 and the moving member 21 have the same moving path.

In this embodiment, the telescoping mechanism further comprises a base 10 and a bracket 60. The base 10 and the bracket 60 provide a fixed support for the lift assembly 20, the cooperating assembly 30 and the control assembly 40.

The base 10 may be a plate, a box, a frame, etc., and the shape is not limited.

The bracket 60 is connected to the base 10. The base 10 may be part of the stand 60 (integral) or separate. Two ends of the screw 23 are fixed to the bracket 60 and the base 10 through bearings, respectively, and two ends of the guide rod 31 are fixed to the bracket 60 and the base 10, respectively. Between the bracket 60 and the base 10 is a space for accommodating the lifting assembly 20, and the moving member 21 is driven by the driver 22 to move upward and stop working when the moving member 21 abuts against the bracket 60. In other embodiments, the actuator 22 may stop after the moving member 21 moves upward by a certain distance. That is, the actuator 22 operates for a predetermined time and then stops the operation.

In another embodiment of the present application, referring to fig. 1, the lifting assembly 20 further includes a screw 23, the moving member 21 is screwed with the screw 23, and the driver 22 is used for driving the screw 23 to rotate so as to move the moving member 21 up and down. The screw 23 and the moving member 21 are in threaded fit to form a screw rod structure, which is beneficial to the accurate control of the movement of the moving member 21.

In another embodiment of the present application, referring to fig. 1, the driver 22 is a motor, an output shaft of the driver 22 is perpendicular to an extending direction of the screw 23, and the lifting assembly 20 further includes a transmission structure 24 for transmitting a torque of the driver 22 to the screw 23. The transmission structure 24 is a gear box structure and comprises a gear pair and a transmission shaft, and a person skilled in the art reasonably sets the position matching relationship of the gear pair and the transmission shaft according to the positions of the driver 22 and the screw 23 so as to rationalize the spatial layout. In this embodiment, the output shaft of the driver 22 is perpendicular to the extending direction of the screw 23, and correspondingly, at least one gear pair is a gear pair with orthogonal axes, so as to realize the adjustment of the torque direction. The orthogonal gear pair may be two intermeshing bevel gears. The output shaft of the driver 22 is perpendicular to the extending direction of the screw 23, the extending direction of the screw 23 is the up-down direction, the output shaft of the driver 22 is the horizontal direction, that is, the driver 22 is in the horizontal placement state, and the driver 22 is horizontally placed, which is beneficial to reducing the occupied space in the up-down direction. When the target structure is a camera, the arrangement of the telescopic mechanism in the inner space of the mobile phone shell is facilitated.

In the illustrated structure, the output shaft of the driver 22 is connected to a spur gear and a spur gear engaged therewith, the spur gear is fixed to a transmission shaft, and the transmission shaft extends up and down. The drive shaft transmits torque from the spur gear to the screw 23. The transmission shaft may be coaxially connected to the screw 23 to transmit the torque to the screw 23, or may transmit the torque to the screw 23 through another gear pair and another transmission shaft. And the straight tooth face gear is adopted for transmission, so that the assembly is more convenient.

Referring to fig. 1 and 4, in the illustrated structure, the bracket 60 further includes a protective shell covering the base 10, the protective shell and the base 10 enclose to form an accommodating cavity for accommodating the transmission structure 24, and the lower end of the screw 23 is fixed on the protective shell through a bearing. Each transmission shaft of the transmission structure 24 has the same extending direction as the screw 23, and two ends of the transmission shaft are respectively connected with the protective shell and the base 10. The upper surface of the protective shell is provided with a first avoidance hole for the guide rod 31 to pass through and a second avoidance hole for the output shaft of the driver 22 to pass through.

In another embodiment of the present application, referring to fig. 1, the elastic member 33 is a spring, and the elastic member 33 is sleeved on the guide rod 31 and compressed between the sliding block 32 and the base 10. The spring is an existing part, and is simple in structure and low in cost. The size and the elastic coefficient of the elastic member 33 can be selected by those skilled in the art according to actual requirements to meet the moving requirements of the slider 32.

In another embodiment of the present application, referring to fig. 2 and 3, the sliding block 32 includes a connecting portion 321, an abutting portion 322, and a supporting portion 323, which are sequentially connected, the connecting portion 321 is slidably connected to the connecting portion 321 of the guide rod 31, the abutting portion 322 is located above the first trigger switch and can abut against the first trigger switch when the sliding block 32 moves downward, and the supporting portion 323 is used for connecting the target structure. In the illustrated structure, the supporting portion 323 includes an extension portion connected to the interference portion 322 and extending upward, and a fixing portion connected to the extension portion, and the fixing portion is U-shaped and is configured to be connected to a target structure. The abutting portion 322 and the connecting portion 321 are located on the same horizontal plane, and in the illustration, the connecting portion 321 and the abutting portion 322 are arranged in front of and behind each other, which, on one hand, makes the first position contact 41 and the guide rod 31 arranged in a staggered manner without interference; on the other hand, the connecting section and the moving member 21 are arranged in a staggered manner to avoid interference. It will be appreciated by those skilled in the art that the carriage 60 is retracted at the support 323 so that the target structure can be moved upwardly through the carriage 60 as the slide 32 is moved upwardly.

Example two

This embodiment provides a cell-phone camera device, including the camera with connect the camera and be used for driving about the telescopic machanism that the camera goes up and down. Please refer to the first embodiment for the specific structure of the telescopic mechanism. Since the mobile phone camera device provided in this embodiment adopts all the technical solutions of the first embodiment, all the beneficial effects brought by the technical solutions of the embodiments are also achieved, and are not described in detail herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A telescoping mechanism adapted for use in lifting and lowering a target structure, comprising:

2. The telescoping mechanism of claim 1, wherein the cooperating assembly further comprises a guide rod extending upwardly and downwardly, the slider and the moving member each slidably engaging the guide rod.

3. The telescoping mechanism of claim 2, wherein the slider includes a connecting portion, an interference portion, and a support portion connected in series, the connecting portion sliding over the guide rod, the interference portion being able to reach or pass the first position contact when the slider is moved downward, the support portion being configured to connect to the target structure.

4. The telescoping mechanism of claim 1, wherein the resilient member is a spring.

5. The telescoping mechanism of claim 1, wherein the lifting assembly further comprises a threaded rod, the moving member threadably engaging the threaded rod, and the actuator for rotating the threaded rod to move the moving member up and down.

6. The telescoping mechanism of claim 5, wherein the driver is a motor, an output shaft of the driver being perpendicular to a direction of extension of the screw, the lifting assembly further comprising a transmission structure for transmitting torque of the driver to the screw.

7. The telescopic mechanism as claimed in claim 6, wherein the transmission structure includes a spur gear connected to the output shaft of the driver, a spur gear engaged with the spur gear, and a transmission shaft connected to the spur gear and extending up and down, the transmission shaft transmitting the torque from the spur gear to the screw.

8. The telescoping mechanism of any of claims 1-7, wherein the control assembly includes a first trigger switch located at the first position contact and a second trigger switch located at the second position contact; when the sliding block abuts against the first trigger switch and the moving piece abuts against the second trigger switch, the driver stops working; when the sliding block abuts against the first trigger switch and the moving member does not abut against the second trigger switch, the driver drives the moving member to move downwards until the moving member abuts against the second trigger switch.

9. The telescoping mechanism of claim 8, wherein a lower surface of the slider abuts the first trigger switch when the moving member abuts the second trigger switch.

10. The telescoping mechanism of claim 8, wherein the control assembly further comprises a flexible circuit board electrically connected to the first trigger switch and the second trigger switch for controlling the actuator to start or stop operation.