TWI852038B - Extendable and retractable positioning mechanism - Google Patents

Abstract

An extendable and retractable positioning mechanism is provided and includes a first sliding component, a second sliding component slidable relative to the first sliding component and a positioning assembly. The positioning assembly includes an engaging component, a first resilient component and an engaged structure. The engaging component is rotatably disposed on one of the first sliding component and the second sliding component. The engaged structure is disposed on the other one of the first sliding component and the second sliding component, and a passage is formed on the engaged structure. The engaging component includes an engaging portion movable along the passage. The first resilient component is connected to the engaging component. The positioning assembly is for allowing the second sliding component to slide between or be positioned at different positions relative to the first sliding component.

Description

Telescopic positioning mechanism

The present invention relates to a telescopic positioning mechanism, in particular a telescopic positioning mechanism with a simple structure, a wide range of applications, relatively labor-saving operation and the ability to withstand higher loads.

The telescopic positioning mechanism can be used to allow relative movement between two components, and is therefore widely used in devices in different fields. For example, the telescopic positioning mechanism can be disposed between a drawer and a cabinet to allow the drawer to be extended or retracted relative to the cabinet, or can be disposed between a display module and a bracket to allow the height of the display module to be adjusted relative to the bracket. Currently, some telescopic positioning mechanisms also include a door fastener that can be used to position a pop-up module (such as a pop-up lens disposed on the top of a display or a pop-up headphone hanger disposed on the side of a display) in a folded position and an elastic member that can be used to pop the pop-up module to a pop-up position. However, the user must exert a greater force on the door fastener to smoothly pop out the pop-up module, which is laborious to operate. In addition, the door fastener is limited by its structure and can provide a smaller locking force, so its application range is narrow.

Specifically, the existing telescopic positioning mechanism has the following disadvantages: 1. When the telescopic positioning mechanism is set between the display and the pop-up lens located on the top of the display, the user must apply a large vertical external force to the door fastener to smoothly pop out the pop-up module. Excessive vertical external force often causes the display to rise and fall unexpectedly, thereby affecting the user experience; 2. When the telescopic positioning mechanism is set between the display and the bracket and the display and the bracket are packaged When placed flat, the telescopic positioning mechanism will be in an extended state due to the lack of the weight of the monitor, making the entire device bulky and difficult to save packaging volume; 3. When the telescopic positioning mechanism is set on the monitor and the pop-up headphone hanger located on the side of the monitor, the user must apply a large lateral external force to the door fastener to smoothly pop out the pop-up module. Excessive lateral external force often causes unexpected shaking of the monitor, thereby affecting the user experience.

Furthermore, existing drawers often need to be equipped with handles to allow users to operate so that the drawers can be extended or retracted relative to the cabinet body, but the handles are not only easy to collide with the user, but also affect the overall aesthetics. In addition, the lifting mechanism of the current lifting cabinet is quite complicated and huge, which not only wastes storage space, but also has high costs and can withstand a small load.

Therefore, how to solve the above problems has become a topic of concern in the industry.

The purpose of the present invention is to provide a telescopic positioning mechanism with a simple structure, a wide range of applications, less labor-saving operation and the ability to withstand higher loads, so as to solve the above problems.

To achieve the above-mentioned purpose, the present invention discloses a telescopic positioning mechanism, which includes a first sliding member, a second sliding member and a positioning assembly. The second sliding member can slide relative to the first sliding member. The positioning assembly includes a clamping member, a first elastic member and a matching structure. The clamping member is rotatably arranged on one of the first sliding member and the second sliding member. The matching structure is arranged on the other of the first sliding member and the second sliding member and forms a channel. The clamping member includes a clamping portion moving along the channel. The first elastic member is connected to the clamping member. The positioning assembly is used to allow the second sliding member to slide or position relative to the first sliding member between a first retracted position and a second retracted position and slide or position relative to the first sliding member between the extended position and the first retracted position.

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 at the extended position relative to the first sliding member, the engaging portion is at a starting position relative to the channel. When the second sliding member slides 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 released position along the channel. When the second sliding member slides from the first retracted position to the extended position relative to the first sliding member, the engaging portion moves from the second released position to the starting position along the channel.

According to one embodiment of the present invention, the positioning assembly further includes a non-return structure, which is used to allow the engaging portion to move from the starting position to the first release position along the channel and restrict the engaging portion from moving from the starting position to the second release position.

According to one embodiment of the present invention, a projected length of a straight line distance between the first release position and the starting position along a sliding direction of the second slider relative to the first slider and a projected length of a straight line distance between the second release position and the starting position along a sliding direction of the second slider relative to the first slider are greater than a projected length of a straight line distance between the engagement position and the starting position along a sliding direction of the second slider relative to the first slider.

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 engaging position, the second channel portion is formed between the engaging position and the second release position, an end portion of the first channel portion close to the engaging position and an end portion of the second channel portion close to the engaging position are connected to each other, the first channel portion and the second channel portion are arranged in an open V or U shape, the third channel portion is formed between the starting position and the first release position, the fourth channel portion is formed between the second release position and the starting position, an end portion of the third channel portion close to the first release position and an end portion of the first channel portion close to the first release position are connected to each other, The end of the fourth channel portion near the second release position is connected to the end of the second channel portion near the second release position, the end of the third channel portion far from the first release position is connected to the end of the fourth channel portion far from the second release position, the third channel portion and the fourth channel portion are arranged in a V or U shape or are respectively in two L-shaped structures, the fifth channel portion is formed between one of the connecting points of the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position and the starting position, and the end of the fifth channel portion far from the starting position is connected to the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position.

According to one embodiment of the present invention, the anti-return structure is close to the connection between the end of the third channel portion far from the first release position and the end of the fourth channel portion far 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 projected length of a straight line distance between the first release position and the starting position along a sliding direction of the second slider relative to the first slider and a projected length of a straight line distance between the second release position and the starting position along a sliding direction of the second slider relative to the first slider are greater than a projected length of a straight line distance between the engagement position and the starting position along a sliding direction of the second slider relative to the first slider, and the channel The invention comprises a first channel portion, a second channel portion, a third channel portion, a fourth channel portion and a fifth channel portion, wherein 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 portion of the first channel portion close to the engagement position and an end portion of the second channel portion close to the engagement position are connected to each other, the first channel portion and the second channel portion are arranged in an open V or U shape, the third channel portion is formed between the starting position and the first release position, the fourth channel portion is formed between the second release position and the starting position, an end portion of the third channel portion close to the first release position is connected to an end portion of the first channel portion close to the first release position, an end portion of the fourth channel portion close to the second release position is connected to an end portion of the second channel portion close to the second release position, an end portion of the third channel portion far from the first release position and a end portion of the fourth channel portion far from the second release position The third channel portion and the fourth channel portion are arranged in a V or U shape or in two L-shaped structures respectively. The fifth channel portion is formed between a connecting point between the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position and the starting position. The end of the fifth channel portion far from the starting position connects the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position.

According to one 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 one embodiment of the present invention, the positioning assembly further includes at least one second elastic member, which is connected between the first sliding member and the second sliding member and is used to drive the second sliding member to slide relative to the first sliding member.

In summary, in the present invention, by means of the cooperation between the channel of the card structure and the engaging part 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 the need for an additional door latch. Furthermore, the above structure can provide a greater locking force and is suitable for heavier objects. Therefore, the present invention is not only simple in structure and labor-saving in operation, but also can withstand higher loads and has a wide range of applications.

1,1'''''',1''''''': telescopic device

11: Display

11'''''',11''''''':cabinet

111: Panel Department

112: Back shell

12: Bracket

12'''''': Extractable module

12''''''': Lifting module

121: Joint

122: Bracket body

13: Camera

13'''''',13''''''': telescopic positioning mechanism

131: First shell

132: Second shell

133: The third shell

134: Image capture component

14:Hook

15,15',15”,15''',15'''',15'''': The first telescopic positioning mechanism

151,151',151”,151''',151'''',151''''',161,171: first sliding member

1511,1511',1511”,1511''''': groove

1511''': ribs

1511'''': First Platform Department

1512'''': Second Platform Department

1512,1512',1512”,1512''',1513'''',1512''''',1622,1712: raised part

1513''': Platform Department

152,162,172: Second sliding member

153,163,173: Positioning components

1531,1531''''',1631,1731: snap-fit parts

1531A, 1631A, 1731A: snap-fit part

1531B:Connection part

1531C: Joint

1532,1532''''',1632,1732: The first elastic part

1533,1533',1533”,1533''',1533'''',1533''''',1633,1733: Card matching structure

1533A,1533A',1533A”,1533A''',1533A'''',1533A'''',1533A''''',1633A,1733A: Channel

1533A1,1533A1''''': First channel section

1533A2,1533A2''''': Second channel section

1533A3,1533A3''''': The third channel section

1533A4,1533A4',1533A4”,1533A4''''': The fourth channel section

1533A5,1533A5',1533A5”,1533A5''''': Fifth channel section

1534,1634,1734: Second elastic part

1535,1535',1535”,1535''''',1635,1735: anti-return structure

154: Slide rail assembly

155': Damper

16: Second telescopic positioning mechanism

1621,1711: Depression

17: The third telescopic positioning mechanism

1721:Guide groove

D1: First operating direction

D2: Second operating direction

D3: The third operation direction

P1: First pivot direction

S: sliding direction

Figure 1 is a schematic diagram of the appearance of the telescopic device of the first embodiment of the present invention.

Figure 2 is an exploded view of the components of the telescopic device of the first embodiment of the present invention.

Figures 3 and 4 are partial exploded views of the first telescopic positioning mechanism of the first embodiment of the present invention at different viewing angles.

Figure 5 is a partial structural schematic diagram of the first telescopic positioning mechanism of the first embodiment of the present invention.

Figures 6 to 13 are schematic diagrams of the first telescopic positioning mechanism of the first embodiment of the present invention in different states.

Figure 14 is a partial structural schematic diagram of the first telescopic positioning mechanism of the second embodiment of the present invention.

Figure 15 is a partial structural schematic diagram of the first telescopic positioning mechanism of the third embodiment of the present invention.

Figure 16 is a partial structural schematic diagram of the first telescopic positioning mechanism of the fourth embodiment of the present invention.

Figure 17 is a partial structural schematic diagram of the first telescopic positioning mechanism of the fifth embodiment of the present invention.

Figure 18 is a partial structural schematic diagram of the first telescopic positioning mechanism of the sixth embodiment of the present invention.

Figures 19 and 20 are partial exploded views of the components of the second telescopic positioning mechanism of the first embodiment of the present invention at different viewing angles.

Figure 21 is a partial structural schematic diagram of the second telescopic positioning mechanism of the first embodiment of the present invention.

Figure 22 is an exploded view of the third telescopic positioning mechanism of the first embodiment of the present invention.

Figure 23 is a partial structural schematic diagram of the third telescopic positioning mechanism of the first embodiment of the present invention.

Figure 24 is an exploded view of some components of the telescopic device of the seventh embodiment of the present invention.

Figure 25 is a schematic diagram of the partial internal structure of the telescopic device of the seventh embodiment of the present invention.

Figure 26 is an exploded view of some components of the telescopic device of the eighth embodiment of the present invention.

Figure 27 is a schematic diagram of the partial internal structure of the telescopic device of the eighth embodiment of the present invention.

The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used for explanation and are not used to limit the present invention. In addition, unless otherwise specified, the term "connection" herein includes any direct and indirect electrical or structural connection means. Therefore, if the text describes that a first device is connected to a second device, it means that the first device can be directly structurally connected to the second device, or indirectly structurally connected to the second device through other devices or connection means.

Please refer to Figure 1 and Figure 2, Figure 1 is a schematic diagram of the appearance of a telescopic device 1 of the first embodiment of the present invention, and Figure 2 is an exploded diagram of the components of the telescopic device 1 of the first embodiment of the present invention. As shown in FIG. 1 and FIG. 2, the telescopic device 1 may be a screen including a display 11, a bracket 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. 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 disposed between the display 11 and the bracket 12 to adjust the height of the display 11 relative to the bracket 12; the second telescopic positioning mechanism 16 is disposed between the camera 13 and the display 11 to pop out or retract 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 pop out 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 telescopic device may be a screen that includes only one or two of the first telescopic positioning mechanism, the second telescopic positioning mechanism, and the third telescopic positioning mechanism.

Please refer to Figures 3 to 5. Figures 3 and 4 are partial exploded views of the first telescopic positioning mechanism 15 of the first embodiment of the present invention at different viewing angles, and Figure 5 is a partial structural schematic diagram of the first telescopic positioning mechanism 15 of the first embodiment of the present invention. As shown in Figures 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 assembly 153. The first sliding member 151 is coupled to the bracket 12, and the second sliding member 152 is disposed on the bracket 12 and coupled to the display 11 in a manner that it can slide relative to the first sliding member 151. In this embodiment, the second sliding member 152 can be arranged on the bracket 12 by at least one slide 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 belongs to the scope of the present invention. The positioning assembly 153 is arranged between the first sliding member 151 and the second sliding member 152 to allow the second sliding member 152 to slide or be positioned between different positions relative to the first sliding member 151.

Furthermore, please refer to Figures 3 to 13, Figures 6 to 13 are schematic diagrams of the first telescopic positioning mechanism 15 of the first embodiment of the present invention in different states. As shown in Figures 3 to 13, the positioning assembly 153 includes a locking member 1531, a first elastic member 1532, a matching structure 1533 and a second elastic member 1534, wherein the first sliding member 151, the second sliding member 152 and the locking member 1531 in Figures 6 to 13 are illustrated in a simple schematic manner. The engaging member 1531 is rotatably disposed on the second sliding member 152, the engaging structure 1533 is disposed on the first sliding member 151 and forms a channel 1533A, the engaging member 1531 includes an engaging portion 1531A that moves 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, and the positioning assembly 153 is used to allow the second sliding member 152 to slide relative to the first sliding member 151 between the extended position shown in FIG. 6 and the first retracted position shown in FIG. 9 or between the extended position shown in FIG. 6 and the first retracted position shown in FIG. 11. The positioning assembly 153 is used to allow the second slider 152 to slide between the first retracted position shown in FIG. 9 and the second retracted position shown in FIG. 10 or between the first retracted position shown in FIG. 11 and the second retracted position shown in FIG. 10 relative to the first slider 151, wherein the height of the second slider 152 relative to the first slider 151 when it is in the first retracted position shown in FIG. 9 is the same as the height of the second slider 152 relative to the first slider 151 when it is in the first retracted position shown in FIG. 11, but when the second slider 152 is respectively in the first retracted position shown in FIG. 9 and the first retracted position shown in FIG. 11, the engaging portion 1531A is located at different positions.

When the display 11 is at the highest position relative to the bracket 12, the second sliding member 152 is at the extended position relative to the first sliding member 151 as shown in FIG. 6, and the engaging portion 1531A is at the starting position relative to the channel 1533A as shown in FIG. 6; when the display 11 is at the lowest position relative to the bracket 12, the second sliding member 152 is at the first sliding member 151 as shown in FIG. 9 or FIG. 11. The second sliding member 152 is located at the second retracted position relative to the first sliding member 151 as shown in FIG. 10, and the engaging portion 1531A is located at the engaging position relative to the channel 1533A as shown in FIG. 10.

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 assembly 153 further includes a non-return structure 1535. The non-return structure 1535 is used to allow the engaging portion 1531A to move from the starting position to the first release position along the channel 1533A and restrict the engaging portion 1531A from moving from the starting 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 is located between the connecting portion 1531B and the engaging portion 1531A, the first elastic member 1532 may be a tension spring for driving the engaging member 1531 to pivot around the pivoting portion 1531C in a first pivoting direction P1, as shown in FIG. 3 and FIG. 4 , the second elastic member 1534 may be a constant force spring for placing the second sliding member 152 in a force balance state. As shown in FIGS. 3 to 13 , the channel 1533A of the card-matching structure 1533 can be formed by a groove 1511 and a protrusion 1512 of the first sliding member 151. The projected length of the straight line distance between the first release position and the starting position along the second sliding member 152 relative to a sliding direction S of the first sliding member 151 and the projected length of the straight line distance between the second release position and the starting position along the second sliding member 152 relative to the sliding direction S of the first sliding member 151 are respectively greater than the projected length of the straight line distance between the engaging position and the starting position along the second sliding member 152 relative to the sliding direction S of the first sliding member 151. The channel 1533A includes a first channel portion 1 533A1, 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 release position and the engagement position, the second channel portion 1533A2 is formed between the engagement position and the second release position, the end of the first channel portion 1533A1 close to the engagement position and the end of the second channel portion 1533A2 close to the engagement position are connected to each other, the first channel portion 1533A1 and the second channel portion 1533A2 are arranged in an open V or U shape, the third channel portion 1533A3 is formed between the starting position and the first release position, the fourth channel portion 1533A4 is formed between the second release position and the starting position, the end of the third channel portion 1533A3 close to the first release position is connected to the end of the first channel portion 1533A1 close to the first release position, the end of the fourth channel portion 1533A4 close to the second release position is connected to the end of the second channel portion 1533A2 close to the second release position, the end of the third channel portion 1533A3 far from the first release position is connected to the end of the fourth channel portion 1533A4 far from the second release position, the third channel portion 1533A3 and the fourth channel portion 1533A4 are arranged in a V or U shape, and the fifth channel portion 1533A5 is formed in the third channel portion 1533A 3 is connected to the end of the fourth channel portion 1533A4 far from the second release position and the starting position, the end of the fifth channel portion 1533A5 far from the starting position is connected to the end of the third channel portion 1533A3 far from the first release position and the end of the fourth channel portion 1533A4 far from the second release position, the anti-return structure 1535 is close to the connection between the end of the third channel portion 1533A3 far from the first release position and the end of the fourth channel portion 1533A4 far from the second release position and elastically abuts against the wall of the fourth channel portion 1533A4, and the anti-return structure 1535 can be a spring inserted in the protrusion 1512.

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 that is centrally arranged and used to drive the second sliding member to slide toward the extended position relative to the first sliding member. In addition, the number and arrangement position of the second elastic member are not limited to this embodiment. For example, in another embodiment, the positioning assembly may include two second elastic members that are symmetrically arranged on the left and right. Alternatively, in another embodiment, the second elastic member may be omitted, and the second sliding member may be configured to be driven by gravity to slide relative to the first sliding member.

In this embodiment, as shown in FIG. 1, FIG. 3, FIG. 4, and FIG. 6 to FIG. 10, when the user wants to fold and position the bracket 12, he can first apply force to a joint portion 121 of the bracket 12 for jointing with the display 11 to move the bracket 12 from the highest position to the lowest position along a first operation direction D1 relative to a bracket body 122 of the bracket 12, so that the second sliding member 152 is subjected to force and slides from the extended position to the first retracted position relative to the first sliding member 151, so that the engaging portion 1531A can move from the starting position to the first release position along the fifth channel portion 1533A5 and the third channel portion 1533A3 of the channel 1533A under the guidance of the non-return structure 1535. At this time, the first elastic member 1532 is subjected to force and elastically deformed. Then, the user can apply force to the joint portion 121 of the bracket 12 to move it 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 subjected to force and slides from the first retracted position to the second retracted position relative to the first sliding member 151, so that the engaging portion 1531A moves from the first release 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 at the engaging position, the engaging portion 1531A engages with the matching engaging structure 1533, so that the second sliding member 152 cannot slide toward the highest position relative to the first sliding member 151, thereby completing the retracted positioning of the bracket 12, thereby reducing the packaging material volume.

As shown in Figures 1, 3, 4 and 10 to 13, when the user wants to move the joint 121 of the bracket 12 from the folded position to the highest position, force can be applied to the joint 121 of the bracket 12 to move it from the folded position to the lowest position along the first operating direction D1 relative to the bracket body 122 of the bracket 12, so that the second sliding member 152 is subjected to force and slides from the second retracted position to the first retracted position relative to the first sliding member 151, thereby causing the engaging portion 1531A to move from the engaging position to the second release 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 joint portion 121 of the bracket 12 to move it 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 subjected to force and slides from the first retracted position to the extended position relative to the first sliding member 151, so that the engaging portion 1531A moves from the second release position to the starting position along the fourth channel portion 1533A4 and the fifth channel portion 1533A5 of the channel 1533A through the elastic deformation of the anti-return structure 1535.

It is worth mentioning that, since the second elastic member 1534 of the first telescopic positioning mechanism 15 is a constant force spring for placing 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, that is, the second elastic member 1534 will not drive the second sliding member 152 to slide relative to the first sliding member 151 when the user no longer applies force.

Furthermore, in this embodiment, the third channel portion 1533A3 and the first channel portion 1533A1 of the channel 1533A of the card-matching structure 1533 are located on the left side of the first sliding member 151, the fourth channel portion 1533A4 and the second channel portion 1533A2 of the channel 1533A of the card-matching structure 1533 are located on the right side of the first sliding member 151, and the fifth channel portion 1533A5 of the channel 1533A of the card-matching structure 1533 is located in the middle of the first sliding member 151, that is, in the process of the joint portion 121 of the bracket 12 returning to the highest position from the highest position through the folded position, the engaging portion 1531A moves in the channel 1533A in a left-to-right manner.

In addition, please refer to Figures 14 to 18. Figure 14 is a partial structural schematic diagram of the first telescopic positioning mechanism 15' of the second embodiment of the present invention, Figure 15 is a partial structural schematic diagram of the first telescopic positioning mechanism 15" of the third embodiment of the present invention, Figure 16 is a partial structural schematic diagram of the first telescopic positioning mechanism 15''' of the fourth embodiment of the present invention, and Figure 17 is a partial structural schematic diagram of the first telescopic positioning mechanism 15' of the fifth embodiment of the present invention. FIG. 18 is a partial structural schematic diagram of a first telescopic positioning mechanism 15'''' of the sixth embodiment of the present invention. As shown in FIG. 14, unlike the first embodiment, a card structure 1533' of the first telescopic positioning mechanism 15' of the second embodiment is disposed on a first sliding member 151', and the first sliding member 151' is formed with a groove 1511' and a protrusion 1512', a channel 1533A' of the card structure 1533' is formed by the groove 1511' and the protrusion 1512', a non-return structure 1535' is a slope structure located in a fourth channel portion 1533A4' of the channel 1533A', and the height of the slope structure increases gradually from the end close to the second release position toward the end close to the starting position, and the engaging portion (not shown in the figure) is The telescopic structure, the engaging portion can be elastically deformed by the slope structure during the process of moving from the second release position to the starting position. When the engaging portion leaves the starting position along the fifth channel portion 1533A5' of the channel 1533A', the step difference generated by the slope structure allows the engaging portion to move from the starting position to the first release position along the channel 1533A' and restricts the engaging portion from moving from the starting position to the second release position.

As shown in FIG. 15, unlike the first embodiment, the third embodiment has a first telescopic positioning mechanism 15" with a card structure 1533" 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 card structure 1533" is formed by the groove 1511" and the protrusion 1512", a non-return structure 1535" is an elastic slope structure located in a fourth channel portion 1533A4" of the channel 1533A", and the height of the elastic slope structure is 1. The degree gradually increases from the end close to the second release position to the end close to the starting position. The engaging portion (not shown in the figure) is a rigid structure. The engaging portion can squeeze the elastic slope structure to elastically deform it during the process of moving from the second release position to the starting position. When the engaging portion leaves the starting position along the fifth channel portion 1533A5" of the channel 1533A", the step difference generated by the elastic slope structure allows the engaging portion to move from the starting position to the first release position along the channel 1533A" and restricts the engaging portion from moving from the starting position to the second release position.

As shown in FIG. 16, different from the first embodiment, a card 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 raised portion 1512''' and a platform portion 1513''', and a channel 1533A''' of the card structure 1533''' is formed by the rib 1511''', the raised portion 1512''' and the platform portion 1513'''.

As shown in FIG. 17, unlike the first embodiment, a card 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'''' is formed with a first platform portion 1511'''', a second platform portion 1512'''' and a protrusion 1513'''', the height of the second platform portion 1512'''' and the height of the protrusion 1513'''' are respectively higher than the height of the first platform portion 1511'''', and a channel 1533A'''' of the card structure 1533'''' is formed by the first platform portion 1511'''', the second platform portion 1512'''' and the protrusion 1513''''.

As shown in FIG. 18 , different from the first embodiment, a channel 1533A''''' of a card structure 1533''''' of the first telescopic positioning mechanism 15''''' of the sixth embodiment is roughly symmetrical on the left and right and is formed by a groove 1511''''' and a protrusion 1512''''', a first channel portion 1533A1''''' and a second channel portion 1533A2''''' are arranged in an open V-shape, and a third channel portion 1533A3''''' and a fourth channel portion 1533A4''''' are two L-shaped structures respectively. Furthermore, the third channel portion 1533A3''''' and the first channel portion 1533A1''''' are located on the right side of a first sliding member 151''''', the fourth channel portion 1533A4''''' and the second channel portion 1533A2''''' are located on the left side of a first sliding member 151''''', and the fifth channel portion 1533A5''''' is located on the first sliding member 151'''''. In the middle part of the moving part 151''''', a non-return structure 1535''''' extends to the left and elastically abuts against the wall of the fourth channel part 1533A4'''''. A first elastic part 1532''''' is used to drive a locking part 1531''''' to pivot along the arrow direction. When the joint part of the bracket returns to the highest position from the highest position through the folded position, the locking part of the locking part 1531''''' moves in the channel 1533A''''' in a right-to-left manner.

The structure of the second telescopic positioning mechanism 16 is similar to that of the first telescopic positioning mechanism 15. For the sake of simplicity, only the differences between the second telescopic positioning mechanism 16 and the first telescopic positioning mechanism 15 are described below.

Please refer to Figures 1, 2, and 19 to 21. Figures 19 and 20 are exploded views of some components of the second telescopic positioning mechanism 16 of the first embodiment of the present invention at different viewing angles, and Figure 21 is a partial structural schematic diagram of the second telescopic positioning mechanism 16 of the first embodiment of the present invention. As shown in Figures 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 locking member 1631 of a positioning assembly 163 of the second telescopic positioning mechanism 16 is rotatably disposed on the first sliding member 161, and a first elastic member 1632 of the positioning assembly 163 of the second telescopic positioning mechanism 16 is disposed Between the engaging member 1631 and the first sliding member 161, a matching structure 1633 of the positioning assembly 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 assembly 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 to drive the second sliding member 162 to slide relative to the first sliding member 161 to the extended position.

Specifically, the camera 13 includes a first housing 131, a second housing 132, a third housing 133, and an image capture assembly 134. The first housing 131 is located between the second housing 132 and the third housing 133. The image capture assembly 134 is located between the first housing 131 and the third housing 133. The first sliding member 161 is at least partially located between the first housing 131 and the second housing 132. The second sliding member 162 is coupled to the first housing 131. The second sliding member 162 is formed with a recess 1621 and a A protrusion 1622, a channel 1633A of the card-matching structure 1633 is formed by the recessed portion 1621 and the protrusion 1622, a non-return structure 1635 of the positioning assembly 163 can be an elastic arm extending from the protrusion 1622, and the engaging portion 1631A of the engaging member 1631 of the second telescopic positioning mechanism 16 and the channel 1633A of the card-matching structure 1633 rotate 180 degrees to roughly overlap 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 camera 13 from the use position (corresponding to the highest position) to the folded position, the user can first apply force to the camera 13 to move it from the use position to the lowest position along the first operating direction D1 relative to the display 11, so that the second sliding member 162 is subjected to force and slides from the extended position to the first retracted position relative to the first sliding member 161, so that the locking portion 1631A can move from the starting 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 anti-return structure 1635. At this time, the first elastic member 1632 is subjected to force and elastically deformed. 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, so that the engaging portion 1631A moves from the first release position to the engaging position along the first channel portion of the channel 1633A. When the engaging portion 1631A is at the engaging position, the engaging portion 1631A engages with the matching structure 1633, so that the second sliding member 162 cannot slide toward the use position relative to the first sliding member 161, thereby completing the operation of moving the camera 13 to the retracted position.

When the user wants to move the camera 13 from the folded position to the use position, force can be applied to the camera 13 to make it move from the folded position to the lowest position along the first operating direction D1 relative to the display 11, so that the second sliding member 162 is subjected to force and slides from the second retracted position to the first retracted position relative to the first sliding member 161, so that the engaging portion 1631A moves from the engaging position to the second release 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 out 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, so that the engaging portion 1631A moves from the second release position to the starting position along the fourth channel portion and the fifth channel portion of the channel 1633A through the elastic deformation of the anti-return structure 1635 to complete the operation of moving the camera 13 to the use position.

The structure of the third telescopic positioning mechanism 17 is also similar to that of the first telescopic positioning mechanism 15. For the sake of simplicity, only the differences between the third telescopic positioning mechanism 17 and the first telescopic positioning mechanism 15 are described below.

Please refer to FIG. 1, FIG. 2, FIG. 22 and FIG. 23. FIG. 22 is an exploded view of some components of the third telescopic positioning mechanism 17 of the first embodiment of the present invention, and FIG. 23 is a schematic diagram of some structures of the third telescopic positioning mechanism 17 of the first embodiment of the present invention. As shown in FIG. 1, FIG. 2, FIG. 22 and FIG. 23, a first sliding member 171 and a second sliding member 172 of the third telescopic positioning mechanism 17 are respectively combined with the display 11 and the hook 14, a locking member 1731 of a positioning assembly 173 of the third telescopic positioning mechanism 17 is rotatably disposed on the second sliding member 172, and a first elastic member 1732 of the positioning assembly 173 of the third telescopic positioning mechanism 17 is disposed on the display 11 and the hook 14. Between the engaging member 1731 and the second sliding member 172, a matching structure 1733 of the positioning assembly 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 assembly 173 of the third telescopic positioning mechanism 17 is disposed between the first sliding member 171 and the second sliding member 172 and is used to drive the second sliding member 172 to slide relative to the first sliding member 171 to the extended position.

Specifically, the second sliding member 172 is formed with a guide groove 1721, the first sliding member 171 is slidably inserted into the guide groove 1721, the first sliding member 171 is formed with a recessed portion 1711 and a raised portion 1712, a channel 1733A of the card-matching structure 1733 is formed by the recessed portion 1711 and the raised portion 1712, 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 degrees counterclockwise and then roughly overlap 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 convex position (corresponding to the highest position) to the retracted position, the user can first apply force to the hook 14 to make it move from the convex position along a second operating direction D2 to the retracted position (corresponding to the lowest position) relative to the display 11, so that the second sliding member 172 is subjected to force and slides from the extended position to the first retracted position relative to the first sliding member 171, so that the locking portion 1731A can move from the starting position to the first release position along the fifth channel portion and the third channel portion of the channel 1733A under the guidance of a non-return structure 1735. At this time, the first elastic member 1732 is subjected to force and elastically deformed. Then, the user can release the hook 14, so that the second sliding member 172 slides from the first retracted position to the second retracted position relative to the first sliding member 171 under the action of the first elastic member 1732 and the second elastic 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 at the engaging position, the engaging portion 1731A engages with the matching engaging structure 1733, so that the second sliding member 172 cannot slide toward the outward convex 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 folded position to the convex position, the user can apply force to the hook 14 to make it move from the folded position to the retracted position along the second operation direction D2 relative to the display 11, so that the second sliding member 172 is subjected to force and slides from the second retracted position to the first retracted position relative to the first sliding member 171, so that the engaging portion 1731A moves from the engaging position to the second release 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 sliding member 172 slides and bounces from the first retracted position to the extended position relative to the first sliding member 171 under the action of the second elastic member 1734, so that the engaging portion 1731A moves from the second release position to the starting position along the fourth channel portion and the fifth channel portion of the channel 1733A through the elastic deformation of the anti-return structure 1735 to complete the operation of moving the hook 14 to the protruding position.

It is worth noting that the positioning assembly 173 of the third telescopic positioning mechanism 17 can also have various variations similar to the positioning assembly 153 of the first telescopic positioning mechanism 15, which will not be elaborated here.

Furthermore, the number and the location of the first telescopic positioning mechanism, the second telescopic positioning mechanism and the third telescopic positioning mechanism of the present invention are not limited to the above-mentioned embodiments, but are determined according to actual needs. For example, please refer to Figures 24 to 27, Figure 24 is an exploded view of some components of the telescopic device 1'''''' of the seventh embodiment of the present invention, Figure 25 is a schematic diagram of some internal structures of the telescopic device 1'''''' of the seventh embodiment of the present invention, Figure 26 is an exploded view of some components of the telescopic device 1''''''' of the eighth embodiment of the present invention, and Figure 27 is a schematic diagram of some internal structures of the telescopic device 1''''''' of the eighth embodiment of the present invention. In the embodiments shown in Figures 24 and 25, the telescopic device 1'''''' may be a pull-out storage cabinet including a cabinet body 11'''''', at least one pull-out module 12'''''' and at least one telescopic positioning mechanism 13'''''' disposed between the cabinet body 11''''' and at least one pull-out module 12'''''', wherein the telescopic positioning mechanism 13'''''' of this 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 this embodiment is a simple variation of the first telescopic positioning mechanism, the second telescopic positioning mechanism or the third telescopic positioning mechanism, which will not be described in detail herein. In the embodiment shown in FIG. 26 and FIG. 27, the telescopic device 1''''''' includes a cabinet body 11''''''', at least one lifting module 12''''''' and at least one telescopic positioning mechanism 13''''''' disposed between the cabinet body 11'''''' and at least one lifting module 12''''''', wherein the telescopic positioning mechanism 13''''''' of this 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 this embodiment is a simple variation of the first telescopic positioning mechanism, the second telescopic positioning mechanism, or the third telescopic positioning mechanism, and will not be described in detail here.

Compared with the prior art, in the present invention, by means of the cooperation between the channel of the card structure and the engaging part 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 the need for an additional door latch. Furthermore, the above structure can provide a greater locking force and is suitable for heavier objects. Therefore, the present invention is not only simple in structure and labor-saving in operation, but also can withstand higher loads and has a wide range of applications.

The above is only the preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

15: The first telescopic positioning mechanism

151: First sliding member

1511: Groove

1512: Raised part

152: Second sliding member

153: Positioning assembly

1531: snap-fit parts

1531A: snap-fit part

1531B:Connection part

1531C: Joint

1532: First elastic member

1533: Card configuration

1533A: Channel

1533A1: First channel section

1533A2: Second channel section

1533A3: Third channel section

1533A4: Fourth Channel Department

1533A5: Fifth Channel Department

1535: Anti-return structure

P1: First pivot direction

S: sliding direction

Claims (7)

A telescopic positioning mechanism includes: a first sliding member; a second sliding member that can slide relative to the first sliding member; a positioning assembly that includes a clamping member, a first elastic member, and a matching structure, wherein the clamping member is rotatably disposed on one of the first sliding member and the second sliding member, the matching structure is disposed on the other of the first sliding member and the second sliding member and forms a channel, the clamping member includes a clamping portion that moves along the channel, the first elastic member is connected to the clamping member, and the positioning assembly is used to allow the second sliding member to be in a first retracted position and a second retracted position relative to the first sliding member. The second sliding member is placed to slide or position and slide or position between an extended position and the first retracted position relative to the first sliding member. 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. When the second sliding member is located at 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. When the first sliding member slides from the second retracted position to the first retracted position, the engaging portion moves from the engaging position to the second released position along the channel; 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 slides 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 released position along the channel; when the second sliding member slides from the first retracted position to the extended position relative to the first sliding member, the engaging portion moves from the second released position to the starting position along the channel and a non-return structure, the non-return structure is used to prevent the engaging portion from moving from the starting position to the second release position and guide the engaging portion from moving from the starting position to the first release position when the second sliding member slides from the extended position to the first retracted position along a first operating direction relative to the first sliding member, and the non-return structure is also used to allow the engaging portion to move from the first release position to the starting position or from the second release position to the starting position when the second sliding member slides from the second retracted position to the extended position along a second operating direction opposite to the first operating direction relative to the first sliding member. The telescopic positioning mechanism as described in claim 1, wherein the projected length of a straight line distance between the first release position and the starting position along a sliding direction of the second slider relative to the first slider and the projected length of a straight line distance between the second release position and the starting position along a sliding direction of the second slider relative to the first slider are greater than the projected length of a straight line distance between the engagement position and the starting position along a sliding direction of the second slider relative to the first slider. A telescopic positioning mechanism as described in claim 2, wherein 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, an end portion of the first channel portion close to the engagement position and an end portion of the second channel portion close to the engagement position are connected to each other, the first channel portion and the second channel portion are arranged in an open V or U shape, the third channel portion is formed between the starting position and the first release position, the fourth channel portion is formed between the second release position and the starting position, an end portion of the third channel portion close to the first release position and an end portion of the first channel portion close to the first The end of the fourth channel portion near the second release position is connected to the end of the second channel portion near the second release position, the end of the third channel portion far from the first release position is connected to the end of the fourth channel portion far from the second release position, the third channel portion and the fourth channel portion are arranged in a V or U shape or are respectively in two L-shaped structures, the fifth channel portion is formed between one of the connecting points of the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position and the starting position, and the end of the fifth channel portion far from the starting position is connected to the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position. The telescopic positioning mechanism as described in claim 3, wherein the non-return structure is close to the connection between the end of the third channel portion away from the first release position and the end of the fourth channel portion away from the second release position and elastically abuts against a wall surface of the fourth channel portion. The telescopic positioning mechanism as described in claim 1, wherein a projected length of a straight line distance between the first release position and the starting position along a sliding direction of the second slider relative to the first slider and a projected length of a straight line distance between the second release position and the starting position along a sliding direction of the second slider relative to the first slider are greater than a projected length of a straight line distance between the engagement position and the starting position along a sliding direction of the second slider relative to the first slider, 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, an end portion of the first channel portion close to the engagement position and an end portion of the second channel portion close to the engagement position are connected to each other, the first channel portion and the second channel portion are arranged in an open V or U shape, the third channel portion is formed between the first release position and the engagement position, and the second channel portion is formed between the first release position and the engagement position. The fourth channel portion is formed between the second release position and the starting position, an end of the third channel portion close to the first release position is connected to an end of the first channel portion close to the first release position, an end of the fourth channel portion close to the second release position is connected to an end of the second channel portion close to the second release position, an end of the third channel portion far from the first release position is connected to an end of the fourth channel portion far from the second release position. The third channel portion and the fourth channel portion are arranged in a V or U shape or in two L-shaped structures respectively. The fifth channel portion is formed between a connecting point of the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position and the starting position. One end of the fifth channel portion far from the starting position connects the end of the third channel portion far from the first release position and the end of the fourth channel portion far from the second release position. The telescopic positioning mechanism as described in any one of claims 1 to 5, wherein the engaging member further comprises 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. A telescopic positioning mechanism as described in any one of claims 1 to 5, wherein the positioning assembly further comprises at least one second elastic member, which is connected between the first sliding member and the second sliding member and is used to drive the second sliding member to slide relative to the first sliding member.

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