CN117386961A - Telescopic positioning mechanism - Google Patents

Abstract

The invention relates to a telescopic positioning mechanism, which comprises a first sliding part, a second sliding part capable of sliding relative to the first sliding part and a positioning component, wherein the positioning component comprises a clamping part, a first elastic part and a clamping structure, the clamping part is rotatably arranged on one of the first sliding part and the second sliding part, the clamping structure is arranged on the other of the first sliding part and the second sliding part and is provided with a channel, the clamping part comprises a clamping part moving along the channel, the first elastic part is connected with the clamping part, and the positioning component is used for allowing the second sliding part to slide or position relative to the first sliding part at different positions.

Description

Telescopic positioning mechanism

Technical Field

The invention relates to a telescopic positioning mechanism, in particular to a telescopic positioning mechanism which has the advantages of simple structure, wide application range, labor-saving operation and high load bearing.

Background

The telescopic positioning mechanism can be used for allowing relative movement between two components, so that the telescopic positioning mechanism is widely applied to devices in different fields. For example, a telescoping positioning mechanism may be disposed between the drawer and the cabinet to allow extension or retraction of the drawer relative to the cabinet, or may be disposed between the display module and the bracket to allow for height adjustment of the display module relative to the bracket. Some telescopic positioning mechanisms further include a door fastener for positioning the pop-up module (such as a pop-up lens disposed at the top of the display or a pop-up earphone hanger disposed at the side of the display) at the folding position and an elastic member for ejecting the pop-up module to the pop-up position, however, the user has to apply a large force to the door fastener to eject the pop-up module smoothly, which is more laborious to operate, and the door fastener is limited in structure, which can provide a smaller fastening force, and has a narrow application range.

Specifically, the existing telescopic positioning mechanism has the following disadvantages: 1. when the telescopic positioning mechanism is arranged between the display and the pop-up lens positioned at the top of the display, the pop-up module can be smoothly popped up only by applying larger vertical external force to the door fastener by a user, and the display is often undesirably lifted up and down due to the excessive vertical external force, so that the user experience is affected; 2. when the telescopic positioning mechanism is arranged between the display and the bracket and the display is horizontally packaged with the bracket, the telescopic positioning mechanism is in an extension state due to lack of weight load of the display, so that the whole device is huge in size and difficult to save the volume of the packaging material; 3. when the telescopic positioning mechanism is arranged on the display and the pop-up earphone hanging frame positioned on the side portion of the display, the pop-up module can be smoothly popped up due to the fact that a user has to apply larger lateral external force to the door fastener, and unexpected shaking of the display is often caused by the overlarge lateral external force, so that user experience is affected.

Furthermore, existing drawers often require a handle to allow the user to operate, so that the drawer can be extended or retracted relative to the cabinet, but the handle is not only easy to collide with the user, but also affects the overall aesthetic appearance. In addition, the lifting mechanism of the existing lifting type cabinet is quite complex and huge, not only wastes storage space, but also has higher cost and smaller bearable load.

Therefore, how to solve the above problems has become an issue of interest in the industry.

Disclosure of Invention

The invention aims to provide a telescopic positioning mechanism which has a simple structure, a wide application range, is labor-saving to operate and can bear high load, so as to solve the problems.

In order to achieve the above-mentioned objective, the present invention provides a telescopic positioning mechanism, which comprises a first sliding member, a second sliding member and a positioning assembly, wherein the second sliding member can slide relative to the first sliding member, the positioning assembly comprises a clamping member, a first elastic member and a clamping structure, the clamping member is rotatably disposed on one of the first sliding member and the second sliding member, the clamping structure is disposed on the other of the first sliding member and the second sliding member and forms a channel, the clamping member comprises a clamping portion moving along the channel, the first elastic member is connected to the clamping member, and the positioning assembly is used for allowing the second sliding member to slide or position between a first retracted position and a second retracted position relative to the first sliding member and slide or position between the extended position and the first retracted position relative to the first sliding member.

According to one embodiment of the present invention, when the second sliding member is located at the first retracted position relative to the first sliding member, the engaging portion is located at a first release position or a second release position relative to the channel, when the second sliding member is located at the second retracted position relative to the first sliding member, the engaging portion is located at an engaging position relative to the channel, when the second sliding member slides from the first retracted position to the second retracted position relative to the first sliding member, the engaging portion moves from the first release position to the engaging position along the channel, and when the second sliding member slides from the second retracted position to the first retracted position relative to the first sliding member, the engaging portion moves from the engaging position to the second release position along the channel.

According to one embodiment of the present invention, when the second sliding member is located at the extended position relative to the first sliding member, the engaging portion is located at a starting position relative to the channel, when the second sliding member is slid from the extended position to the first retracted position relative to the first sliding member, the engaging portion moves from the starting position to the first releasing position along the channel, and when the second sliding member is slid from the first retracted position to the extended position relative to the first sliding member, the engaging portion moves from the second releasing position to the starting position along the channel.

According to an embodiment of the invention, the positioning element further includes a non-return structure, and the non-return structure is configured to allow the engaging portion to move from the initial position to the first release position along the channel and limit the engaging portion from moving from the initial position to the second release position.

According to one embodiment of the present invention, a projection length of the first release position along a sliding direction of the second sliding member relative to the first sliding member and a projection length of the second release position along the sliding direction of the second sliding member relative to the first sliding member are longer than a projection length of the first release position along the sliding direction of the second sliding member relative to the first sliding member.

According to one embodiment of the present invention, the channel includes a first channel portion, a second channel portion, a third channel portion, a fourth channel portion and a fifth channel portion, the first channel portion is formed between the first release position and the engagement position, the second channel portion is formed between the engagement position and the second release position, a first end portion of the first channel portion near the engagement position and an end portion of the second channel portion near the engagement position are in communication with each other, the first channel portion and the second channel portion are in an open V or U-shaped arrangement, the third channel portion is formed between the start position and the first release position, the fourth channel portion is formed between the second release position and the start position, a first end portion of the third channel portion near the first release position and an end portion of the first channel portion near the first release position are in communication with one end portion of the second channel portion near the second release position, the first end portion of the fourth channel portion near the second release position and an end portion of the second channel portion near the second release position are in communication with one another end portion of the first channel portion near the second release position, the first end portion of the fourth channel portion near the second release position and the first end portion near the first release position and the first release position are in communication with one end portion of the first channel portion and the first channel portion, the first end portion and the first end portion of the fourth channel portion is in communication with the first end portion is in a V or a fourth channel portion is in a V or a position far from the first end is in communication with the first end portion is in a position far from the first position.

According to one embodiment of the present invention, the non-return structure is located at the connection point between the end portion of the third channel portion away from the first release position and the end portion of the fourth channel portion away from the second release position and elastically abuts against a wall surface of the fourth channel portion.

According to one embodiment of the present invention, a linear distance between the first release position and the start position along a sliding direction of the second sliding member relative to the first sliding member and a linear distance between the second release position and the start position along a sliding direction of the second sliding member relative to the first sliding member is longer than a linear distance between the engagement position and the start position along a linear distance between the second sliding member relative to the sliding direction of the first sliding member, the channel comprises a first channel portion, a second channel portion, a third channel portion, a fourth channel portion and a fifth channel portion, the first channel portion is formed between the first release position and the engagement position, the second channel portion is formed between the engagement position and the second release position, an end of the first channel part near the clamping position is communicated with an end of the second channel part near the clamping position, the first channel part and the second channel part are arranged in an opening V or U shape, the third channel part is formed between the starting position and the first release position, the fourth channel part is formed between the second release position and the starting position, an end of the third channel part near the first release position is communicated with an end of the first channel part near the first release position, an end of the fourth channel part near the second release position is communicated with an end of the second channel part near the second release position, an end of the third channel part far away from the first release position is communicated with an end of the fourth channel part far away from the second release position, the third channel part and the fourth channel part are arranged in a V shape or a U shape or respectively have two L-shaped structures, the fifth channel part is formed between a communication position of the end part of the third channel part far away from the first release position and the end part of the fourth channel part far away from the second release position and the initial position, and one end part of the fifth channel part far away from the initial position is communicated with the end part of the third channel part far away from the first release position and the end part of the fourth channel part far away from the second release position.

According to an embodiment of the present invention, the engaging member further includes a connecting portion and a pivoting portion, the connecting portion is connected to the first elastic member, the pivoting portion is pivotally connected to the second sliding member, and one of the pivoting portion and the connecting portion is located between the other of the pivoting portion and the connecting portion and the engaging portion.

According to an embodiment of the present invention, the positioning assembly further includes at least one second elastic member connected between the first sliding member and the second sliding member for driving the second sliding member to slide relative to the first sliding member.

In summary, in the present invention, by matching the channel of the card matching structure with the engaging portion of the engaging member moving along the channel, the telescopic positioning mechanism can position the second sliding member at different positions relative to the first sliding member without additional provision of a door fastener.

Drawings

Fig. 1 is an external view schematically showing a telescopic device according to a first embodiment of the present invention.

Fig. 2 is an exploded view of the components of the telescopic device according to the first embodiment of the present invention.

Fig. 3 and 4 are exploded views of a portion of the first telescopic positioning mechanism according to the first embodiment of the present invention.

Fig. 5 is a schematic view of a part of the structure of the first telescopic positioning mechanism according to the first embodiment of the present invention.

Fig. 6 to 13 are schematic views of the first telescopic positioning mechanism according to the first embodiment of the present invention in different states.

Fig. 14 is a schematic view of a part of the structure of a first telescopic positioning mechanism according to a second embodiment of the present invention.

Fig. 15 is a schematic view of a part of a first telescopic positioning mechanism according to a third embodiment of the present invention.

Fig. 16 is a schematic view of a part of the structure of a first telescopic positioning mechanism according to a fourth embodiment of the present invention.

Fig. 17 is a schematic view of a part of the structure of a first telescopic positioning mechanism according to a fifth embodiment of the present invention.

Fig. 18 is a schematic view of a part of a first telescopic positioning mechanism according to a sixth embodiment of the present invention.

Fig. 19 and 20 are exploded views of a portion of the second telescopic positioning mechanism according to the first embodiment of the present invention.

Fig. 21 is a schematic view of a part of a second telescopic positioning mechanism according to a first embodiment of the present invention.

Fig. 22 is an exploded view of a third telescopic positioning mechanism according to a first embodiment of the present invention.

Fig. 23 is a schematic view of a part of the structure of a third telescopic positioning mechanism according to the first embodiment of the present invention.

Fig. 24 is an exploded view of a portion of the components of a telescoping device according to a seventh embodiment of the present invention.

Fig. 25 is a schematic view of a part of the internal structure of a telescopic device according to a seventh embodiment of the present invention.

Fig. 26 is an exploded view of a portion of the components of a telescoping device according to an eighth embodiment of the present invention.

Fig. 27 is a schematic view showing a part of the internal structure of a telescopic device according to an eighth embodiment of the present invention.

Reference numerals illustrate:

1. 1"", 1' -telescoping device

11-display

11"", 11""' -cabinet

111-Panel portion

112-back shell portion

12-stent

12"" -removable module

12' -lifting module

121-joint

122-stent body

13-video camera

13"", 13' -telescopic positioning mechanism

131-first shell portion

132-second shell portion

133-third shell portion

134-image capturing assembly

14-hook

15. 15', 15", 15 '", 15"" ' -first telescopic positioning means

151. 151', 151", 151 '", 151"" ', 161, 171-first slider

1511. 1511', 1511""' -grooves

1511' -ribs

1511"" -first platform portion

1512"" -second platform portion

1512. 1512', 1512", 1512'", 1513"", 1512"", 1622, 1712-raised portions

1513' -platform portion

152. 162, 172-second slide

153. 163, 173 positioning assembly

1531. 1531', 1631, 1731-fastener

1531A, 1631A, 1731A-engaging portions

1531B-connection part

1531C-pin joint part

1532. 1532', 1632, 1732-first elastic element

1533. 1533', 1533", 1533'", 1533"" ', 1633, 1733-configuration structures 1533A, 1533A', 1533A ", 1533A '", 1533A ""', 1633A, 1733A-channels

1533A1, 1533A1""' -first channel portion

1533A2, 1533 A2' "-second channel portion

1533A3, 1533 A3' "-third channel portion

1533A4, 1533A4', 1533A4""' -fourth channel portion

1533A5, 1533A5', 1533A5""' -fifth channel portion

1534. 1634, 1734-second elastic member

1535. 1535', 1535", 1535'", 1635, 1735-non-return structure

154-slide rail assembly

155' -damper

16-second telescopic positioning mechanism

1621. 1711-recess

17-third telescopic positioning mechanism

1721-guide slot

D1-first direction of operation

D2—second direction of operation

D3-third direction of operation

P1-first pivot direction

S-sliding direction

Detailed Description

The directional terms mentioned in the following embodiments are, for example: upper, lower, left, right, front or rear, etc., are merely references to the directions of the attached drawings. Thus, the directional terminology is used for purposes of illustration and is not intended to be limiting of the invention. The term "connected" is used herein to encompass any direct or indirect electrical or structural connection, unless otherwise stated. Thus, if a first device couples to a second device, that connection may be through a direct structural connection, or through an indirect structural connection via other devices and connections.

Referring to fig. 1 and 2, fig. 1 is a schematic external view of a telescopic device 1 according to a first embodiment of the present invention, and fig. 2 is an exploded view of components of the telescopic device 1 according to the first embodiment of the present invention. As shown in fig. 1 and 2, the telescopic device 1 may be a screen including a display 11, a stand 12, a camera 13 for capturing images, a hook 14 for hanging headphones, and at least one telescopic positioning mechanism, wherein the at least one telescopic positioning mechanism includes a first telescopic positioning mechanism 15, a second telescopic positioning mechanism 16, and a third telescopic positioning mechanism 17, the display 11 includes a panel portion 111 and a back shell portion 112, and the second telescopic positioning mechanism 16, the camera 13, the third telescopic positioning mechanism 17, and the hook 14 are located between the panel portion 111 and the back shell portion 112. The first telescopic positioning mechanism 15 is arranged between the display 11 and the bracket 12 to realize the height adjustment of the display 11 relative to the bracket 12; the second telescopic positioning mechanism 16 is arranged between the camera 13 and the display 11 to realize the ejection or folding of the camera 13 relative to the display 11; the third telescopic positioning mechanism 17 is disposed between the hook 14 and the display 11 to eject or retract the hook 14 relative to the display 11.

However, the present invention is not limited to this embodiment. For example, in another embodiment, the telescoping device may be a screen that includes only one or both of the first telescoping positioning mechanism, the second telescoping positioning mechanism, and the third telescoping positioning mechanism.

Referring to fig. 3 to 5, fig. 3 and 4 are exploded views of a part of the first telescopic positioning mechanism 15 according to the first embodiment of the present invention, and fig. 5 is a schematic view of a part of the first telescopic positioning mechanism 15 according to the first embodiment of the present invention. As shown in fig. 3 to 5, the first telescopic positioning mechanism 15 disposed between the display 11 and the bracket 12 includes a first sliding member 151, a second sliding member 152 and a positioning component 153, wherein the first sliding member 151 is coupled to the bracket 12, and the second sliding member 152 is slidably disposed on the bracket 12 relative to the first sliding member 151 and coupled to the display 11. In this embodiment, the second sliding member 152 may be disposed on the bracket 12 by at least one sliding rail assembly 154, but the present invention is not limited to this embodiment, and any mechanism or arrangement that allows the second sliding member to slide relative to the first sliding member is within the scope of the present invention. The positioning assembly 153 is disposed between the first sliding member 151 and the second sliding member 152 to allow the second sliding member 152 to slide or position between different positions relative to the first sliding member 151.

Furthermore, referring to fig. 3 to 13, fig. 6 to 13 are schematic views of the first telescopic positioning mechanism 15 according to the first embodiment of the present invention in different states. As shown in fig. 3 to 13, the positioning component 153 includes a locking element 1531, a first elastic element 1532, a card matching structure 1533 and a second elastic element 1534, wherein the first sliding element 151, the second sliding element 152 and the locking element 1531 in fig. 6 to 13 are schematically illustrated. The engaging member 1531 is rotatably disposed on the second sliding member 152, the engaging member 1533 is disposed on the first sliding member 151 and has a channel 1533A formed therein, the engaging member 1531 includes an engaging portion 1531A moving along the channel 1533A, the first elastic member 1532 is connected between the engaging member 1531 and the second sliding member 152, the second elastic member 1534 is connected between the first sliding member 151 and the second sliding member 152, the positioning component 153 is configured to allow the second sliding member 152 to slide between an extended position as shown in fig. 6 and a first retracted position as shown in fig. 9 or slide between an extended position as shown in fig. 6 and a first retracted position as shown in fig. 11, and the positioning component 153 is further configured to allow the second sliding member 152 to slide between a first retracted position as shown in fig. 9 and a second retracted position as shown in fig. 11 and a second retracted position as shown in fig. 10, wherein the second sliding member 152 is located at the same height as shown in fig. 9 but not in fig. 11 relative to the first retracted position as shown in fig. 11 when the second sliding member 152 is located at the same height as the first retracted position as shown in fig. 11.

When the display 11 is located at the highest position relative to the bracket 12, the second slider 152 is located at the extended position as shown in fig. 6 relative to the first slider 151, and the engaging portion 1531A is located at the initial position as shown in fig. 6 relative to the channel 1533A; when the display 11 is positioned at the lowest position with respect to the stand 12, the second slider 152 is positioned at the first retracted position with respect to the first slider 151 as shown in fig. 9 or 11, and the engaging portion 1531A is positioned at the first release position with respect to the channel 1533A as shown in fig. 9 or the second release position as shown in fig. 11; when the display 11 is located at the storage position with respect to the stand 12, the second slider 152 is located at the second retracted position as shown in fig. 10 with respect to the first slider 151, and the engaging portion 1531A is located at the engaging position as shown in fig. 10 with respect to the channel 1533A.

In addition, to ensure that the engaging portion 1531A moves in a predetermined direction relative to the channel 1533A when the second sliding member 152 slides relative to the first sliding member 151, the positioning device 153 further includes a non-return structure 1535, and the non-return structure 1535 is configured to allow the engaging portion 1531A to move from the initial position to the first release position along the channel 1533A and limit the engaging portion 1531A from moving from the initial position to the second release position.

More specifically, as shown in fig. 5, the engaging member 1531 further includes a connecting portion 1531B and a pivoting portion 1531C, the connecting portion 1531B is connected to the first elastic member 1532, the pivoting portion 1531C is pivotally connected to the second sliding member 152 and located between the connecting portion 1531B and the engaging portion 1531A, the first elastic member 1532 may be an extension spring for driving the engaging member 1531 to pivot around the pivoting portion 1531C in a first pivoting direction P1, and as shown in fig. 3 and 4, the second elastic member 1534 may be a constant force spring for making the second sliding member 152 in a force balanced state. As shown in fig. 3 to 13, the channel 1533A of the card matching structure 1533 may be formed by a groove 1511 and a protruding portion 1512 of the first slider 151, a straight line distance between the first releasing position and the starting position along a projection length of the second slider 152 relative to a sliding direction S of the first slider 151 and a straight line distance between the second releasing position and the starting position are respectively greater than a projection length of the second slider 152 relative to the sliding direction S of the first slider 151 along a straight line distance between the engaging position and the starting position, the channel 1533A includes a first channel portion 1533A1, a second channel portion 1533A2, a third channel portion 1533A3, a fourth channel portion 1533A4 and a fifth channel portion 1533A5, the first channel portion 1533A1 is formed between the first releasing position and the engaging position, the second channel portion 1533A2 is formed between the engaging position and the second releasing position, the end of the first passage portion 1533A1 near the engagement position and the end of the second passage portion 1533A2 near the engagement position communicate with each other, the first passage portion 1533A1 and the second passage portion 1533A2 are arranged in an open V or U shape, the third passage portion 1533A3 is formed between the start position and the first release position, the fourth passage portion 1533A4 is formed between the second release position and the start position, the end of the third passage portion 1533A3 near the first release position communicates with the end of the first passage portion 1533A1 near the first release position, the end of the fourth passage portion 1533A4 near the second release position communicates with the end of the second passage portion 1533A2 near the second release position, the end of the third passage portion 3A3 far from the first release position communicates with the end of the fourth passage portion 1533A4 far from the second release position, the third passage portion 1533A3 and the fourth passage portion 1533A4 are arranged in a V or U shape, the fifth channel portion 1533A5 is formed between a communication point between an end of the third channel portion 1533A3 away from the first release position and an end of the fourth channel portion 1533A4 away from the second release position and the start position, the end of the fifth channel portion 1533A5 away from the start position communicates an end of the third channel portion 1533A3 away from the first release position and an end of the fourth channel portion 1533A4 away from the second release position, the non-return structure 1535 is a wall surface that is in elastic abutment with the fourth channel portion 1533A4 near the communication point between the end of the third channel portion 1533A3 away from the first release position and the end of the fourth channel portion 1533A4 away from the second release position, and the non-return structure 1535 may be a spring plate inserted in the boss 151.

However, the present invention is not limited to this embodiment. For example, in another embodiment, the first elastic member may be a torsion spring, a compression spring or a plate spring for driving the engaging member to pivot in the first pivot direction, and the second elastic member may be a tension spring, a compression spring or a rubber elastic body disposed centrally and for driving the second sliding member to slide towards the extended position relative to the first sliding member. In addition, the number and the arrangement positions of the second elastic members are not limited to this embodiment. For example, in another embodiment, the positioning assembly may include two second elastic members symmetrically disposed. Alternatively, in another embodiment, the second elastic member may be omitted, and the second sliding member may be configured to slide relative to the first sliding member under the driving of gravity.

In this embodiment, as shown in fig. 1, 3, 4 and 6 to 10, when the user wants to fold and position the stand 12, the user can first apply a force to a joint portion 121 of the stand 12 for being engaged with the display 11 to move from an uppermost position to a lowermost position along a first operation direction D1 relative to a stand body 122 of the stand 12, so that the second sliding member 152 is forced to slide from an extended position to a first retracted position relative to the first sliding member 151, and the engaging portion 1531A can move from a start position to a first release position along a fifth channel portion 1533A5 and a third channel portion 1533A3 of the channel 1533A under the guidance of the backstop structure 1535, and at this time, the first elastic member 1532 is forced to elastically deform. Then, the user can apply a force to the engaging portion 121 of the bracket 12 to move from the lowest position to the retracted position relative to the bracket body 122 of the bracket 12, so that the second sliding member 152 is forced to slide from the first retracted position to the second retracted position relative to the first sliding member 151, and the engaging portion 1531A moves from the first releasing position to the engaging position along the first channel portion 1533A1 of the channel 1533A under the action of the first elastic member 1532. When the engaging portion 1531A is located at the engaging position, the engaging portion 1531A is engaged with the engaging structure 1533, so that the second slider 152 cannot slide towards the highest position relative to the first slider 151, thereby completing the folding and positioning of the bracket 12 and further reducing the packaging volume.

As shown in fig. 1, 3, 4 and 10 to 13, when the user wants to move the engaging portion 121 of the bracket 12 from the retracted position to the highest position, the user can apply a force to move the engaging portion 121 of the bracket 12 from the retracted position to the lowest position along the first operation direction D1 relative to the bracket body 122 of the bracket 12, so that the second slider 152 is forced to slide from the second retracted position to the first retracted position relative to the first slider 151, and the engaging portion 1531A moves from the engaging position to the second releasing position along the second channel portion 1533A2 of the channel 1533A under the action of the first elastic member 1532. Then, the user can apply force to the engaging portion 121 of the bracket 12 to move from the lowest position to the highest position relative to the bracket body 122 of the bracket 12, so that the second sliding member 152 is forced to slide from the first retracted position to the extended position relative to the first sliding member 151, and the engaging portion 1531A moves from the second releasing position to the initial position along the fourth channel portion 1533A4 and the fifth channel portion 1533A5 of the channel 1533A by the elastic deformation of the non-return structure 1535.

It should be noted that, since the second elastic member 1534 of the first telescopic positioning mechanism 15 is a constant force spring for making the second sliding member 152 in a force balance state, the user can position the display 11 at any position between the highest position and the lowest position by releasing the display 11, i.e. the second elastic member 1534 does not drive the second sliding member 152 to slide relative to the first sliding member 151 when the user no longer applies a force.

In this embodiment, the third channel portion 1533A3 and the first channel portion 1533A1 of the channel 1533A of the card distribution structure 1533 are located at the left side of the first slider 151, the fourth channel portion 1533A4 and the second channel portion 1533A2 of the channel 1533A of the card distribution structure 1533 are located at the right side of the first slider 151, and the fifth channel portion 1533A5 of the channel 1533A of the card distribution structure 1533 is located at the middle portion of the first slider 151, i.e. the engaging portion 1531A moves in the channel 1533A in a left-right returning manner during the process of returning the engaging portion 121 of the bracket 12 from the highest position to the retracted position.

In addition, referring to fig. 14 to 18, fig. 14 is a schematic diagram of a portion of a first telescopic positioning mechanism 15 'according to a second embodiment of the present invention, fig. 15 is a schematic diagram of a portion of a first telescopic positioning mechanism 15″ according to a third embodiment of the present invention, fig. 16 is a schematic diagram of a portion of a first telescopic positioning mechanism 15' "according to a fourth embodiment of the present invention, fig. 17 is a schematic diagram of a portion of a first telescopic positioning mechanism 15 '" according to a fifth embodiment of the present invention, and fig. 18 is a schematic diagram of a portion of a first telescopic positioning mechanism 15' "according to a sixth embodiment of the present invention. As shown in fig. 14, unlike the first embodiment, a locking structure 1533 'of the first telescopic positioning mechanism 15' of the second embodiment is disposed on a first sliding member 151', the first sliding member 151' is formed with a groove 1511 'and a protrusion 1512', a channel 1533A 'of the locking structure 1533' is formed by the groove 1511 'and the protrusion 1512', a non-return structure 1535 'is a slope structure of a fourth channel portion 1533A4' of the channel 1533A ', a height of the slope structure is gradually increased from an end near the second release position toward an end near the start position, an engaging portion (not shown in the figure) is a telescopic structure, the engaging portion can be elastically deformed by the slope structure during a movement from the second release position toward the start position, and a step difference generated by the slope structure can allow the engaging portion to move from the start position to the first release position along the channel 1533A' and prevent the engaging portion from moving from the first release position to the second release position.

As shown in fig. 15, unlike the first embodiment, a locking structure 1533 "of the first telescopic positioning mechanism 15" of the third embodiment is disposed on a first sliding member 151", the first sliding member 151" is formed with a groove 1511 "and a protrusion 1512", a channel 1533A "of the locking structure 1533" is formed by the groove 1511 "and the protrusion 1512", a non-return structure 1535 "is an elastic slope structure of a fourth channel portion 1533A4" of the channel 1533A ", a height of the elastic slope structure increases from an end near the second release position toward an end near the start position, an engaging portion (not shown in the figure) is a rigid structure, the engaging portion can be pressed to elastically deform during a movement from the second release position toward the start position, and a step difference generated by the elastic slope structure can allow the engaging portion to move from the first release position to the first release position along the channel 1533A" and prevent the engaging portion from moving from the first release position to the second release position.

As shown in fig. 16, unlike the first embodiment, a card matching structure 1533 '"of the first telescopic positioning mechanism 15'" of the fourth embodiment is disposed on a first sliding member 151 '", the first sliding member 151'" is formed with a rib 1511 '", a protruding portion 1512'" and a platform 1513 '", and a channel 1533A'" of the card matching structure 1533 '"is formed by the rib 1511'", the protruding portion 1512 '"and the platform 1513'".

As shown in fig. 17, unlike the first embodiment, a card matching structure 1533 of the first telescopic positioning mechanism 15 of the fifth embodiment is disposed on a first sliding member 151"", the first sliding member 151"", a first platform portion 1511"", a second platform portion 1512"", and a protruding portion 1513"", and a channel 1533A "", of the card matching structure 1533"", are formed by the first platform portion 1511"", the second platform portion 1512"", and the protruding portion 1513"", respectively, with the height of the second platform portion 1512"", and the height of the protruding portion 1513"", respectively.

As shown in fig. 18, unlike the first embodiment, a channel 1533A "" of a card matching structure 1533"" of the first telescopic positioning mechanism 15"" of the sixth embodiment is substantially symmetrical left and right and is formed by a groove 1511"" and a boss 1512"", a first channel portion 1533A1"" and a second channel portion 1533A2"" of the channel 1533A "" are arranged in an open V shape, and a third channel portion 1533A3"" and a fourth channel portion 1533A4"" of the channel 1533A "" are respectively in two L-shaped structures. Furthermore, the third channel portion 1533A3"" and the first channel portion 1533A1"" of the channel 1533A "" are located on the right side of the first sliding member 151"" and the fourth channel portion 1533A4"" and the second channel portion 1533A2"" of the channel 1533A "" are located on the left side of the first sliding member 151"" and the fifth channel portion 1533A5"" of the channel 1533A "" is located in the middle portion of the first sliding member 151"" and a backstop structure 1535"" extends to the left and elastically abuts against the wall surface of the fourth channel portion 1533A4"", and a first elastic member 1532"" is used for driving a locking member 1531"" to pivot in the arrow direction, wherein the locking portion of the locking member 1531"" moves in the channel 1533A "" in a right-to-left manner during the process of returning the engaging portion of the bracket from the highest position to the highest position.

The second telescopic positioning mechanism 16 is similar to the first telescopic positioning mechanism 15 in structure, and for brevity, only the differences between the second telescopic positioning mechanism 16 and the first telescopic positioning mechanism 15 will be described below.

Referring to fig. 1, fig. 2, and fig. 19 to fig. 21, fig. 19 and fig. 20 are exploded views of a part of the second telescopic positioning mechanism 16 according to the first embodiment of the present invention, and fig. 21 is a schematic view of a part of the second telescopic positioning mechanism 16 according to the first embodiment of the present invention. As shown in fig. 1, 2 and 19 to 21, a first sliding member 161 and a second sliding member 162 of the second telescopic positioning mechanism 16 are respectively combined with the display 11 and the camera 13, a clamping member 1631 of a positioning component 163 of the second telescopic positioning mechanism 16 is rotatably disposed on the first sliding member 161, a first elastic member 1632 of the positioning component 163 of the second telescopic positioning mechanism 16 is disposed between the clamping member 1631 and the first sliding member 161, a card matching structure 1633 of the positioning component 163 of the second telescopic positioning mechanism 16 is disposed on the second sliding member 162, and two second elastic members 1634 of the positioning component 163 of the second telescopic positioning mechanism 16 are disposed between the first sliding member 161 and the second sliding member 162 and are used for driving the second sliding member 162 to slide to an extended position relative to the first sliding member 161.

Specifically, the camera 13 includes a first shell portion 131, a second shell portion 132, a third shell portion 133, and an image capturing component 134, the first shell portion 131 is located between the second shell portion 132 and the third shell portion 133, the image capturing component 134 is located between the first shell portion 131 and the third shell portion 133, the first sliding member 161 is located at least partially between the first shell portion 131 and the second shell portion 132, the second sliding member 162 is combined with the first shell portion 131, the second sliding member 162 is formed with a recess 1621 and a protrusion 1622, a channel 1633A of the card matching structure 1633 is formed by the recess 1621 and the protrusion 1622, a non-return structure 1635 of the positioning component 163 may be an elastic arm extending from the protrusion 1622, and the engaging portion 1631A of the engaging structure 1631 of the second telescopic positioning mechanism 16 and the channel 1633A of the card matching structure 1633 are rotated 180 degrees to be substantially coincident with the engaging portion 1A of the engaging structure 1531 of the first telescopic positioning mechanism 15 and the channel 1533A of the card matching structure 1533.

When the user wants to move the camera 13 from the use position (corresponding to the highest position) to the retracted position, the user can apply a force to the camera 13 to move the camera 13 from the use position to the lowest position along the first operation direction D1 relative to the display 11, so that the second sliding member 162 is forced to slide from the extended position to the first retracted position relative to the first sliding member 161, and the engaging portion 1631A can move from the initial position to the first release position along the fifth channel portion and the third channel portion of the channel 1633A under the guidance of the non-return structure 1635, and at this time, the first elastic member 1632 is forced to elastically deform. Then, the user can release the camera 13, so that the second sliding member 162 slides from the first retracted position to the second retracted position relative to the first sliding member 161 under the action of the first elastic member 1632 and the second elastic member 1634, and the engaging section 1631A moves from the first release position to the engaging position along the first channel section of the channel 1633A. When the engaging portion 1631A is located at the engaging position, the engaging portion 1631A is engaged with the card matching structure 1633, so that the second slider 162 cannot slide relative to the first slider 161 toward the usage position, thereby completing the operation of moving the camera 13 to the retracted position.

When the user wants to move the camera 13 from the retracted position to the use position, the user can apply a force to the camera 13 to move the camera 13 to the lowest position along the first operation direction D1 relative to the display 11 from the retracted position, so that the second slider 162 is forced to slide from the second retracted position to the first retracted position relative to the first slider 161, and the engaging portion 1631A moves from the engaging position to the second releasing position along the second channel portion of the channel 1633A under the action of the first elastic member 1632. Then, the user can release the camera 13 again, so that the second sliding member 162 slides and pops up from the first retracted position to the extended position relative to the first sliding member 161 under the action of the second elastic member 1634, and the engaging section 1631A moves from the second release position to the initial position along the fourth channel section and the fifth channel section of the channel 1633A by the elastic deformation of the non-return structure 1635, so as to complete the operation of moving the camera 13 to the use position.

The third telescopic positioning mechanism 17 is also similar to the first telescopic positioning mechanism 15 in structure, and for brevity, only the differences between the third telescopic positioning mechanism 17 and the first telescopic positioning mechanism 15 will be described below.

Referring to fig. 1, fig. 2, fig. 22 and fig. 23, fig. 22 is an exploded view of a part of the components of the third telescopic positioning mechanism 17 according to the first embodiment of the present invention, and fig. 23 is a schematic view of a part of the structure of the third telescopic positioning mechanism 17 according to the first embodiment of the present invention. As shown in fig. 1, 2, 22 and 23, a first sliding member 171 and a second sliding member 172 of the third telescopic positioning mechanism 17 are respectively coupled to the display 11 and the hook 14, a locking member 1731 of a positioning component 173 of the third telescopic positioning mechanism 17173 is rotatably disposed on the second sliding member 172, a first elastic member 1732 of the positioning component 173 of the third telescopic positioning mechanism 17 is disposed between the locking member 1731 and the second sliding member 171, a locking structure 1733 of the positioning component 173 of the third telescopic positioning mechanism 17 is disposed on the first sliding member 171, and a second elastic member 1734 of the positioning component 173 of the third telescopic positioning mechanism 17 is disposed between the first sliding member 171 and the second sliding member 172 for driving the second sliding member 172 to slide to an extended position relative to the first sliding member 171.

Specifically, the second sliding member 172 is formed with a guide groove 1721, the first sliding member 171 is slidably disposed through the guide groove 1721, the first sliding member 171 is formed with a recess 1711 and a protrusion 1712, a channel 1733A of the card matching structure 1733 is formed by the recess 1711 and the protrusion 1712, and the engaging portion 1731A of the engaging member 1731 of the third telescopic positioning mechanism 17 and the channel 1733A of the card matching structure 1733 are rotated 90 ° counterclockwise and then substantially coincide with the engaging portion 1531A of the engaging member 1531 of the first telescopic positioning mechanism 15 and the channel 1533A of the card matching structure 1533.

When the user wants to move the hook 14 from the protruding position (corresponding to the highest position) to the retracted position (corresponding to the lowest position) in the second operation direction D2 relative to the display 11, the user can apply a force to the hook 14 to move the second slider 172 from the protruding position to the first retracted position relative to the first slider 171, so that the engaging portion 1731A can move from the initial position to the first releasing position along the fifth channel portion and the third channel portion of the channel 1733A under the guidance of the non-return structure 1735, and at this time, the first elastic member 1732 is elastically deformed by the force. Then, the user can release the hook 14 to slide the second slider 172 from the first retracted position to the second retracted position relative to the first slider 171 under the action of the first resilient member 1732 and the second resilient member 1734, so that the engaging portion 1731A moves from the first release position to the engaging position along the first channel portion of the channel 1733A. When the engaging portion 1731A is located at the engaging position, the engaging portion 1731A is engaged with the engaging structure 1733, so that the second sliding member 172 cannot slide towards the protruding position relative to the first sliding member 171, thereby completing the operation of moving the hook 14 to the retracted position.

When the user wants to move the hook 14 from the retracted position to the protruding position, the user can apply a force to the hook 14 to move the hook to the retracted position along the second operation direction D2 relative to the display 11 from the retracted position, so that the second slider 172 is forced to slide from the second retracted position to the first retracted position relative to the first slider 171, and the engaging portion 1731A moves from the engaging position to the second releasing position along the second channel portion of the channel 1733A under the action of the first elastic member 1732. Then, the user can release the hook 14 again, so that the second slider 172 slides and pops up from the first retracted position to the extended position relative to the first slider 171 under the action of the second elastic member 1734, and the engaging portion 1731A moves from the second release position to the initial position along the fourth channel portion and the fifth channel portion of the channel 1733A by the elastic deformation of the non-return structure 1735, so as to complete the operation of moving the hook 14 to the protruding position.

It should be noted that the positioning assembly 173 of the third telescopic positioning mechanism 17 may also have various variations similar to the positioning assembly 153 of the first telescopic positioning mechanism 15, which will not be described herein.

Furthermore, the number and arrangement positions of the first, second and third telescopic positioning mechanisms according to the present invention are not limited to the above embodiments, and are determined according to practical needs. For example, referring to fig. 24 to 27, fig. 24 is an exploded view of a part of the components of the telescopic device 1"", fig. 25 is a schematic view of a part of the internal structure of the telescopic device 1"", fig. 26 is an exploded view of a part of the components of the telescopic device 1"" 'and fig. 27 is a schematic view of a part of the internal structure of the telescopic device 1 ""' according to the eighth embodiment of the present invention. In the embodiment shown in fig. 24 and 25, the telescopic device 1"" may be a removable storage cabinet including a cabinet 11"", at least one removable module 12"", and at least one telescopic positioning mechanism 13"" "disposed between the cabinet 11" "" and the at least one removable module 12"", wherein the telescopic positioning mechanism 13"" "of the embodiment may be similar to the first telescopic positioning mechanism, the second telescopic positioning mechanism, or the third telescopic positioning mechanism, and the telescopic positioning mechanism of the embodiment is a simple variation of the first telescopic positioning mechanism, the second telescopic positioning mechanism, or the third telescopic positioning mechanism, and is not repeated herein. In the embodiment shown in fig. 26 and 27, the telescopic device 1"" "includes a cabinet 11" "", at least one lifting module 12"", and at least one telescopic positioning mechanism 13"" "' disposed between the cabinet 11" "" and the at least one lifting module 12"" ", wherein the telescopic positioning mechanism 13" "" of the embodiment may be similar to the first telescopic positioning mechanism, the second telescopic positioning mechanism, or the third telescopic positioning mechanism, and the telescopic positioning mechanism of the embodiment is a simple variation of the first telescopic positioning mechanism, the second telescopic positioning mechanism, or the third telescopic positioning mechanism, and is not repeated herein.

Compared with the prior art, in the invention, the telescopic positioning mechanism can position the second sliding piece at different positions relative to the first sliding piece by the matching of the channel of the card matching structure and the clamping part of the clamping piece moving along the channel, and the door fastener does not need to be additionally arranged.

The above description is illustrative of the invention and is not to be construed as limiting, and it will be understood by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a flexible positioning mechanism which characterized in that includes:

a first slider;

a second slider capable of sliding with respect to the first slider; and

the positioning component comprises a clamping piece, a first elastic piece and a matching card structure, wherein the clamping piece is rotatably arranged on one of the first sliding piece and the second sliding piece, the matching card structure is arranged on the other one of the first sliding piece and the second sliding piece and is provided with a channel, the clamping piece comprises a clamping part moving along the channel, the first elastic piece is connected with the clamping piece, and the positioning component is used for allowing the second sliding piece to slide or position between a first retracted position and a second retracted position relative to the first sliding piece and slide or position between the extended position and the first retracted position relative to the first sliding piece.

2. The telescopic positioning mechanism according to claim 1, wherein: when the second sliding piece is located at the first retracted position relative to the first sliding piece, the clamping portion is located at a first release position or a second release position relative to the channel, when the second sliding piece is located at the second retracted position relative to the first sliding piece, the clamping portion is located at a clamping position relative to the channel, when the second sliding piece slides from the first retracted position to the second retracted position relative to the first sliding piece, the clamping portion moves from the first release position to the clamping position along the channel, and when the second sliding piece slides from the second retracted position to the first release position relative to the first sliding piece, the clamping portion moves from the clamping position to the second release position along the channel.

3. The telescopic positioning mechanism according to claim 2, wherein: when the second sliding piece is located at the extending position relative to the first sliding piece, the clamping part is located at a starting position relative to the channel, when the second sliding piece slides from the extending position to the first retracting position relative to the first sliding piece, the clamping part moves from the starting position to the first releasing position along the channel, and when the second sliding piece slides from the first retracting position to the extending position relative to the first sliding piece, the clamping part moves from the second releasing position to the starting position along the channel.

4. A telescopic positioning mechanism according to claim 3, wherein: the positioning assembly further comprises a non-return structure, wherein the non-return structure is used for allowing the clamping part to move from the initial position to the first release position along the channel and limiting the clamping part from moving from the initial position to the second release position.

5. The telescopic positioning mechanism according to claim 4, wherein: a projection length of a linear distance between the first release position and the initial position along a sliding direction of the second sliding member relative to the first sliding member and a projection length of a linear distance between the second release position and the initial position along the sliding direction of the second sliding member relative to the first sliding member are larger than a projection length of a linear distance between the engaging position and the initial position along the sliding direction of the second sliding member relative to the first sliding member.

6. The telescopic positioning mechanism according to claim 5, wherein: the channel comprises a first channel part, a second channel part, a third channel part, a fourth channel part and a fifth channel part, wherein the first channel part is formed between the first release position and the clamping position, the second channel part is formed between the clamping position and the second release position, the first end part of the first channel part, which is close to the clamping position, is communicated with one end part of the second channel part, which is close to the clamping position, the first channel part and the second channel part are in an opening V or U-shaped arrangement, the third channel part is formed between the starting position and the first release position, the fourth channel part is formed between the second release position and the starting position, the first end part of the third channel part, which is close to the first release position, is communicated with one end part of the first channel part, which is close to the second release position, of the fourth channel part, which is close to the second release position, is communicated with one end part of the second channel part, which is close to the second release position, the first end part of the third channel part, which is close to the second release position, the first end part, which is close to the third channel part, is communicated with one end part of the first channel part, the fourth channel part, which is far from the first end part, which is far from the first end part, and the first end part, which is far from the first end part, and the opening structure.

7. The telescopic positioning mechanism according to claim 6, wherein: the end part of the non-return structure, which is close to the third channel part and is far away from the first release position, is elastically abutted against a wall surface of the fourth channel part at the communication position of the end part of the fourth channel part and is far away from the second release position.

8. A telescopic positioning mechanism according to claim 3, wherein: a linear distance between the first releasing position and the initial position along a sliding direction of the second sliding member relative to the first sliding member, a projection length between the second releasing position and the initial position along the sliding direction of the second sliding member relative to the first sliding member is larger than a projection length between the engaging position and the initial position along the sliding direction of the second sliding member relative to the first sliding member, the channel comprises a first channel portion, a second channel portion, a third channel portion, a fourth channel portion and a fifth channel portion, the first channel portion is formed between the first releasing position and the engaging position, the second channel portion is formed between the engaging position and the second releasing position, an end of the first channel part near the clamping position is communicated with an end of the second channel part near the clamping position, the first channel part and the second channel part are arranged in an opening V or U shape, the third channel part is formed between the starting position and the first release position, the fourth channel part is formed between the second release position and the starting position, an end of the third channel part near the first release position is communicated with an end of the first channel part near the first release position, an end of the fourth channel part near the second release position is communicated with an end of the second channel part near the second release position, an end of the third channel part far from the first release position is communicated with an end of the fourth channel part far from the second release position, the third channel part and the fourth channel part are arranged in a V or U shape or respectively in two L-shaped structures, the fifth channel portion is formed between a communication position of the end portion of the third channel portion away from the first release position and the end portion of the fourth channel portion away from the second release position and the start position, and an end portion of the fifth channel portion away from the start position communicates the end portion of the third channel portion away from the first release position and the end portion of the fourth channel portion away from the second release position.

9. The telescopic positioning mechanism according to any one of claims 1 to 8, wherein: the clamping piece also comprises a connecting part and a pivoting part, wherein the connecting part is connected with the first elastic piece, the pivoting part is pivotally connected with the second sliding piece, and one of the pivoting part and the connecting part is positioned between the other of the pivoting part and the connecting part and the clamping part.

10. The telescopic positioning mechanism according to any one of claims 1 to 8, wherein: the positioning assembly further comprises at least one second elastic piece which is connected between the first sliding piece and the second sliding piece and used for driving the second sliding piece to slide relative to the first sliding piece.