Notebook computer support applying adjustable telescopic structure

Abstract

The invention discloses a notebook computer support applying an adjustable telescopic structure, an adjusting support comprises a supporting plate, an adjusting rod piece and a bottom plate, the bottom of the supporting plate is hinged to the front end of the bottom plate, the bottom of the adjusting rod piece is hinged to the rear end of the bottom plate, and the top of the supporting plate is hinged to the top of the adjusting rod piece; the bottom of the sleeve is hinged to the rear end of the bottom plate, the top of the first sliding block is hinged to the top of the supporting plate, the first sliding block is rotationally connected with the second sliding block, the second sliding block is rotationally connected with the third sliding block, the first sliding block, the second sliding block and the third sliding block form a telescopic rod, and the telescopic rod can be embedded into or extend out of the sleeve; a sliding groove is formed in the sleeve, a plurality of tooth grooves are formed in the edge of one side of the sliding groove, and strip-shaped tooth grooves are formed among the tooth grooves. The control part is connected to the third sliding block, the control part can be clamped or separated from any tooth groove, and on the basis that folding shrinkage is achieved, the technical characteristics that the opening angle of the support can be rapidly and accurately adjusted, and self-locking is achieved are achieved.

Description

Technical Field

[0001] The invention relates to a computer stand, and more specifically to a notebook computer stand using an adjustable telescopic structure, belonging to the field of computer stands. Background Art

[0002] Traditional portable laptop computer stands have the characteristics of simple structure and comfortable use, but when adjusting the height or angle, in order to ensure the safety of the equipment and convenient adjustment, the laptop computer generally needs to be taken down for operation, which is a cumbersome process. Existing technical solutions have paid attention to how to facilitate adjustment, but the stand is poor in portability, such as "A laptop computer stand and adjustment method" with patent document application number 202111497157.6 and "A laptop computer stand" with patent document application number 202110044915.2, both of which belong to this type. Existing technical solutions that focus on the portability of the stand have not solved the problem of how to adjust quickly and conveniently, such as "Laptop computer stand" with patent document application number 202010691798.4 and "A lifting laptop computer stand" with patent document application number 201721472019.1. How to adjust simply and conveniently has not been well solved in the existing technical solutions for portable laptop computer stands with retractable and adjustable volume.

[0003] Developing a device that can not only improve the convenience of adjustment but also achieve an extremely small storage volume of the stand through folding and telescoping will greatly improve the user experience of the laptop stand, and its market value has obvious positive significance. Summary of the invention

[0004] In order to solve the above-mentioned problems of the prior art, the present invention provides a notebook computer stand using an adjustable telescopic structure, which has the technical characteristics of being able to quickly and accurately adjust the opening angle of the stand and achieve self-locking on the basis of achieving folding and contraction.

[0005] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0006] The present invention discloses a notebook computer stand using an adjustable telescopic structure, comprising two groups of adjustment stands, the two groups of adjustment stands being connected by a foldable connecting rod, each group of the adjustment stands comprising a support plate, an adjustment rod, and a bottom plate, the bottom of the support plate being hinged on the front end of the bottom plate, the bottom of the adjustment rod being hinged on the rear end of the bottom plate, the top of the support plate being hinged to the top of the adjustment rod, and the adjustment rod comprising a sleeve, a slider first, a slider second, a slider third, and a control component;

[0007] The bottom of the sleeve is hinged at the rear end of the base plate, the top of the slider one is hinged to the top of the support plate, the slider one is rotatably connected to the slider two, the slider two is rotatably connected to the slider three, the slider one, the slider two and the slider three constitute a telescopic rod, and the telescopic rod can be embedded in or extended out of the sleeve; a slide groove is provided on the sleeve, a plurality of tooth grooves are provided on one side edge of the slide groove, and the tooth openings of the tooth grooves are all bent upward with an arc setting, and a strip-shaped tooth groove is formed between the plurality of tooth grooves; the control component is connected to the slider three, and the control component can engage or disengage any tooth groove so that the position of the telescopic rod in the sleeve can be arbitrarily adjusted.

[0008] Preferably, the control component comprises a swing rod and a torsion spring connected with a rotating part, the swing rod is rotatably connected to the slider three, and a first bayonet and a second bayonet are arranged at intervals on the swing rod located at the rotation center, the first bayonet is located between the outer end of the torsion spring and the second bayonet, the opening of the first bayonet is larger than the opening of the second bayonet, and the opening of the second bayonet is adapted to the size of the outer end of the torsion spring, the free end of the swing rod is hinged with a cylinder, and the outer end of the torsion spring can alternately act on the first bayonet and the second bayonet to press the swing rod to rotate so that the cylinder tilts up or moves down;

[0009] The rotating part is twisted to lift the outer end of the torsion spring, and the swing rod is moved to rotate it clockwise. After the rotating part is loosened, the outer end of the torsion spring acts on the second bayonet. Under the action of the torsion spring, the cylinder on the free end of the swing rod is tilted and pressed against the side of the slide groove without the tooth groove, so as to facilitate the movement of the telescopic rod to completely embed into the sleeve;

[0010] When the rotating part is twisted to lift the outer end of the torsion spring, the swing arm rotates counterclockwise under the gravity of the cylinder. After the rotating part is loosened, the outer end of the torsion spring acts on the No. 1 bayonet. Under the action of the torsion spring, the cylinder on the free end of the swing arm moves downward and can be engaged in the tooth groove. Pulling the telescopic rod along the bending direction of the tooth groove can clamp the cylinder in different tooth grooves to achieve graded control and height adjustment of the adjustment rod.

[0011] Preferably, a circular hole No. 1 and a circular hole No. 2 are provided on the slider 2, the slider 1 is connected to a cylinder No. 1, the slider 3 is connected to a cylinder No. 2, the cylinder No. 1 is rotatably connected in the circular hole, and the cylinder No. 2 is rotatably connected in the circular hole No. 2, so that the slider 1 and the slider 3 can be folded through the slider 2.

[0012] Preferably, a No. 1 rectangular groove and a No. 2 rectangular groove are respectively provided at the front and rear ends of the bottom plate, the bottom of the support plate is rotatably connected to the No. 1 rotating shaft hole on both sides of the No. 1 rectangular groove through a No. 1 pin shaft, and the bottom of the sleeve is rotatably connected to the No. 2 rotating shaft hole on both sides of the No. 2 rectangular groove through a No. 2 pin shaft; the width of the No. 1 rectangular groove is greater than the width of the bottom of the support plate; the width of the No. 2 rectangular groove is greater than the width of the bottom of the sleeve, and the bottom of the support plate and the bottom of the sleeve are both bent into an arc-shaped design to reserve the space required for folding the support plate and the sleeve.

[0013] Preferably, the foldable connecting rod includes a No. 1 connecting rod and a No. 2 connecting rod, the middle parts of the No. 1 connecting rod and the No. 2 connecting rod are rotatably connected to form an X-shaped structure for angle adjustment, the upper end of the No. 1 connecting rod is rotatably connected to the left support plate, and the upper end of the No. 2 connecting rod is rotatably connected to the right support plate, and the support plates are provided with longitudinally arranged vertical grooves, the lower end of the No. 1 connecting rod is slidably set in the vertical groove of the right support plate through a pin shaft rod, and the lower end of the No. 2 connecting rod is slidably set in the vertical groove of the left support plate through a pin shaft rod.

[0014] Preferably, the slider three is connected with a cylindrical protrusion, the swing rod is provided with a hole, and the hole of the swing rod is sleeved on the cylindrical protrusion to realize the rotation of the swing rod.

[0015] Preferably, the size of the cylinder is adapted to the tooth groove, and waist-shaped grooves connected to the slide groove are provided at the top and bottom ends of the slide groove, and the waist-shaped grooves are adapted to the size of the cylinder.

[0016] Beneficial effects: Compared with the existing laptop computer stands, the present invention uses a ratchet mechanism and a locking mechanism to allow the adjustable stand to achieve rapid graded angle adjustment and folding while ensuring stability. At the same time, the stand minimizes its volume through telescopic folding. The device has a simple structure, is easy to process, is easy to mass produce and market, and has good market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the exploded side view of the overall structure of the present invention.

[0018] Figure 2 It is a schematic top view of the overall structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the contraction state of the present invention.

[0020] Figure 4 It is a left-right expansion schematic diagram of the present invention.

[0021] Figure 5 It is a schematic diagram of the lowest unfolded height of the present invention.

[0022] Figure 6 It is a schematic diagram of the highest unfolded height of the present invention.

[0023] Figure 7 It is a schematic diagram of the present invention being folded up and down or unfolded.

[0024] Figure 8 It is a schematic diagram of a slider folded on a sleeve in a contracted state of the present invention.

[0025] Fig. 9 It is a schematic diagram of the adjusting rod member of the present invention when folding up or unfolding.

[0026] Fig.10 It is a schematic diagram of the expansion of the adjusting rod of the present invention.

[0027] Fig.11 It is a schematic diagram of the lowest height adjustment rod of the present invention.

[0028] Fig.12 It is a schematic diagram of a process 1 of retracting the telescopic rod into the sleeve of the present invention.

[0029] Fig.13 It is a schematic diagram of process 2 of retracting the telescopic rod into the sleeve of the present invention.

[0030] Fig.14 It is a schematic diagram of process 3 of retracting the telescopic rod into the sleeve of the present invention.

[0031] Fig.15 It is a schematic diagram of a process 4 of retracting the telescopic rod into the sleeve of the present invention.

[0032] Fig.16 It is a schematic diagram of a process 1 of pulling out the telescopic rod from the sleeve of the present invention.

[0033] Fig.17 It is a schematic diagram of process 2 of pulling out the telescopic rod from the sleeve of the present invention.

[0034] Fig.18 It is a schematic diagram of process 3 of pulling out the telescopic rod from the sleeve of the present invention.

[0035] Fig.19 It is a schematic diagram of a process 4 of pulling out the telescopic rod from the sleeve of the present invention.

[0036] Fig. 20 It is a schematic diagram of a process 5 of pulling out the telescopic rod from the sleeve of the present invention.

[0037] Fig.21 It is a schematic diagram of the process 6 of pulling out the telescopic rod from the sleeve of the present invention.

[0038] Fig. 22 It is a partially disassembled schematic diagram of the present invention.

[0039] Fig.23It is a schematic diagram of the sleeve structure of the present invention.

[0040] Fig.24 It is a schematic diagram of the telescopic rod structure of the present invention.

[0041] Fig.25 It is a schematic diagram of the bottom plate structure of the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “inside”, “outside”, “left” and “right” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0044] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium, but the connections at various locations do not affect the multi-position folding of the present application. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The invention is innovative in that the adjustable angle ratchet telescopic mechanism plus the folding mechanism realizes the self-locking and fixing of the laptop stand in a graded manner, and folds up and down after reaching a certain height. Different from the conventional laptop stand height adjustment method, the laptop stand height adjustment is faster, more convenient and more stable, achieving the purpose of simply adjusting the height without taking off the computer.

[0046] like Figure 1-25 The figure shows a specific embodiment of a laptop computer stand using an adjustable telescopic structure. The laptop computer stand using an adjustable telescopic structure includes two sets of adjustment brackets, which are connected by a foldable connecting rod. Each set of the adjustment brackets includes a support plate 14, an adjustment rod, and a bottom plate 15. The principle of the foldable support plate 14 is as follows: Fig. 22 It can be folded and opened left and right. For details, please refer to Figure 3-4, giving opposite and outward forces to the two support plates 14, so that the two support plates 14 are opened left and right, and the same applies to contraction. The bottom of the support plate 14 is hinged on the front end of the bottom plate 15, the bottom of the adjustment rod is hinged on the rear end of the bottom plate 15, the top of the support plate 14 is hinged to the top of the adjustment rod, and the adjustment rod includes a sleeve 5, a slider 1 7, a slider 2 9, a slider 3 10, and a control component;

[0047] The bottom of the sleeve 5 is hinged at the rear end of the base plate 15, the top of the slider 17 is hinged to the top of the support plate 14, the slider 17 is rotatably connected to the slider 29, the slider 29 is rotatably connected to the slider 3 10, the slider 1 7, the slider 2 9, and the slider 3 10 constitute a telescopic rod, and the telescopic rod can be embedded in or extended out of the sleeve 5; a slide groove is provided on the sleeve 5, a plurality of tooth grooves are provided on one side edge of the slide groove, and the tooth openings of the tooth grooves are all bent upward with an arc setting, and strip tooth grooves are formed between the plurality of tooth grooves; the control component is connected to the slider 3 10, and the control component can engage or disengage any tooth groove so that the position of the telescopic rod in the sleeve 5 can be arbitrarily adjusted.

[0048] The control component includes a rocker arm 8 and a torsion spring 10.1 connected to a rotating part. The rocker arm 8 is rotatably connected to the slider 3 10, and a first bayonet and a second bayonet are arranged at intervals on the rocker arm 8 located at the rotation center. The first bayonet is located between the outer end of the torsion spring 10.1 and the second bayonet. The opening of the first bayonet is larger than the opening of the second bayonet, and the opening of the second bayonet is matched with the size of the outer end of the torsion spring 10.1. The free end of the rocker arm 8 is hinged with a cylinder 8.2, and the outer end of the torsion spring 10.1 can alternately act on the first bayonet and the second bayonet to press the rocker arm 8 to rotate so that the cylinder 8.2 is tilted or moved down.

[0049] Control method:

[0050] Method 1: Twist the rotating part to lift the outer end of the torsion spring 10.1, and move the swing rod 8 to rotate it clockwise. After loosening the rotating part, the outer end of the torsion spring 10.1 acts on the second bayonet. Under the action of the torsion spring 10.1, the cylinder 8.2 on the free end of the swing rod 8 is tilted and pressed against the side of the slide groove without a tooth groove, so that the telescopic rod is completely embedded in the sleeve 5. The flow chart of moving the telescopic rod to completely embed into the sleeve 5: see Figure 12-15 At this time, under the action of the outer end of the spring 10.1, the cylinder 8.2 at the free end of the rocker 8 is tilted and disengaged from the tooth groove.

[0051] Method 2: When the rotating part is twisted to lift the outer end of the torsion spring 10.1, the swing rod 8 rotates counterclockwise under the gravity of the cylinder 8.2. After the rotating part is released, the outer end of the torsion spring 10.1 acts on the first bayonet. Under the action of the torsion spring 10.1, the cylinder 8.2 on the free end of the swing rod 8 moves downward and can be engaged in the tooth groove. Pulling the telescopic rod along the bending direction of the tooth groove can engage the cylinder 8.2 in different tooth grooves to achieve graded control and height adjustment of the adjusting rod. The telescopic rod is moved and gradually disengaged from the sleeve 5. Flow chart: see FIG. Figure 16-21 ,and Fig.16 , Fig.18 , Fig.19 The states in the figure are all states in which the height of the adjusting rod is adjusted.

[0052] Specific: such as Figures 12 to 21 It is the state of the control component (rocker 8, etc.) when the sleeve 5 and the slider 10 are in different states, wherein the elastic force at the top of the torsion spring 10.1 is downward.

[0053] like Figures 12 to 15 As described above, at this time, the top end (i.e., the outer end) of the torsion spring 10.1 is at the No. 2 bayonet of the control component (rocker arm 8, etc.), and the torsion spring 10.1 is clamped to the control component (rocker arm 8, etc.). At this time, the torsion spring 10.1 gives the control component (i.e., the No. 2 bayonet of the rocker arm) a backward and downward pulling force, causing the cylinder 8.2 to tilt up, and the cylinder 8.2 of the control component (rocker arm 8, etc.) touches the upper end of the slide groove on the sleeve 5. In this state, the slider three 10 can easily move left and right.

[0054] Through Figures 12 to 15 Move as shown in the figure, so that the adjustment bracket (telescopic rod) reaches the shortest state. At this time, the adjustment bracket is as follows Fig.11 When the height of the laptop computer stand needs to be raised, an upward force is applied to the adjustable support plate 14, so that the upward force is transmitted to the slider 1 7. The slider 1 7 and the slider 2 9 are connected through the slider 3 10, which will apply an upward force to the slider 3 10. Figures 15 to 19 As shown, the grading is fixed, and then the adjustment is completed after the height is adjusted to the appropriate height. Figure 6 After that, an upward force is applied to the support plate 14 again, so that the slider 2 9 is separated from the sleeve 5, and the position as shown in FIG. Figure 7 In the state shown, the laptop stand is folded up and down and returns to the state shown in FIG. Figure 4 The state.

[0055] In a preferred embodiment, the slider 2 9 is provided with a No. 1 circular hole 9.1 and a No. 2 circular hole 9.2, the slider 1 7 is connected to a No. 1 cylinder 7.2, the slider 3 10 is connected to a No. 2 cylinder 10.2, the No. 1 cylinder 7.2 is rotatably connected in the circular hole 9.1, and the No. 2 cylinder 10.2 is rotatably connected in the No. 2 circular hole 9.2, so that the slider 1 7 and the slider 3 10 can be folded through the slider 2 9.

[0056] In a preferred embodiment, the front and rear ends of the bottom plate 15 are respectively provided with a No. 1 rectangular groove 15.1 and a No. 2 rectangular groove 15.2, the bottom pin hole 14.5 of the support plate 14 cooperates with the No. 1 pin 13 to be rotatably connected to the No. 1 rotating shaft hole 15.3 on both sides of the No. 1 rectangular groove 15.1, and the bottom pin hole 5.1 of the sleeve 5 cooperates with the No. 2 pin 11 to be rotatably connected to the No. 2 rotating shaft hole 15.4 on both sides of the No. 2 rectangular groove 15.2; the width of the No. 1 rectangular groove 15.1 is greater than the width of the bottom of the support plate 14; the width of the No. 2 rectangular groove 15.2 is greater than the width of the bottom of the sleeve 5, and the bottom of the support plate 14 and the bottom of the sleeve 5 are both bent into an arc-shaped design to reserve the space required for the support plate 14 and the sleeve 5 to be folded;

[0057] A third rectangular groove 14.2 is formed on the upper end of the support plate 14, and the top of the slide block 1 7 is rotatably connected to the third rotating shaft hole 14.3 on both sides of the third rectangular groove 14.2 through the pin shaft hole 7.1 and the third pin shaft 6.

[0058] In a preferred embodiment, the foldable connecting rod includes a No. 1 connecting rod 1 and a No. 2 connecting rod 4, wherein the No. 1 connecting rod 1 is provided with holes 4.2 and 4.3 at both ends, and the No. 2 connecting rod 4 is provided with holes 1.2 and 1.3 at both ends. The middle through hole portion 1.1 and the through hole portion 4.1 of the No. 1 connecting rod 1 and the No. 2 connecting rod 4 are rotatably connected through a pin shaft portion 2 to form an X-shaped structure for angle adjustment. The upper end of the No. 1 connecting rod 1 is rotatably connected to the mounting hole 14.1 on the left support plate 14, and the upper end of the No. 2 connecting rod 4 is rotatably connected to the mounting hole 14.1 on the right support plate 14. The support plates 14 are provided with longitudinally arranged vertical grooves 14.4, the lower end of the No. 1 connecting rod 1 is slidably set in the vertical groove 14.4 of the right support plate 14 through a pin shaft rod 3, and the lower end of the No. 2 connecting rod 4 is slidably set in the vertical groove 14.4 of the left support plate 14 through the pin shaft rod 3.

[0059] In a preferred embodiment, the slider 3 10 is connected with a cylindrical protrusion 10.4, the swing rod 8 is provided with a hole 8.1, and the hole 8.1 of the swing rod 8 is sleeved on the cylindrical protrusion 10.4 to realize the rotation of the swing rod 8.

[0060] In a preferred embodiment, the cylindrical body 8.2 is adapted to the size of the tooth groove, and a waist-shaped groove connected to the slide groove is provided at the top and bottom of the slide groove, the bottom of the waist-shaped groove is at the same height as the top of the tooth groove, the waist-shaped groove is adapted to the size of the cylindrical body 8.2, and a plurality of anti-slip pads 12 are connected to the bottom plate 15;

[0061] like Figure 14-15 As shown in the state, due to the design of the waist-shaped groove, when the cylinder 8.2 of the control component (rocker arm 8, etc.) passes through a high point on the upper left side of the arc-shaped tooth groove, the top of the torsion spring 10.1 is separated from the second bayonet (small notch) to the first bayonet (large notch). In order to improve the success of the top of the torsion spring 10.1 being separated from the second bayonet to the first bayonet, the opening of the first bayonet can be tilted toward the second bayonet. At this time, the torsion spring 10.1 cannot clamp the control component (rocker arm 8, etc.). At this time, the top of the torsion spring is stuck at the second bayonet (at the notch slope). At this time, the torsion spring 10.1 will give a smaller force to the control component (rocker arm 8, etc.), and the force is just enough to make the cylinder 8.2 open at the bottom of the tooth groove. By pulling the slider one 7 times, the bracket can be adjusted to be telescopic and fixed in stages.

[0062] Therefore, through the waist-shaped groove design connected by the slide groove, it is possible to realize the switching function of the outer end of the torsion spring 10.1 between the first and second bayonet in the pulling slider 7 without using structures such as the rotating part 10.3, thereby realizing free graded adjustment.

[0063] Finally, it should be noted that the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered as the protection scope of the present invention.

Claims

1. A notebook computer stand using an adjustable telescopic structure, characterized in that: The invention comprises two groups of adjustment brackets, which are connected by a foldable connecting rod. Each group of the adjustment brackets comprises a support plate (14), an adjustment rod, and a bottom plate (15). The bottom of the support plate (14) is hinged to the front end of the bottom plate (15), the bottom of the adjustment rod is hinged to the rear end of the bottom plate (15), the top of the support plate (14) is hinged to the top of the adjustment rod, and the adjustment rod comprises a sleeve (5), a slider 1 (7), a slider 2 (9), a slider 3 (10), and a control component. The bottom of the sleeve (5) is hinged at the rear end of the bottom plate (15), the top of the slider 1 (7) is hinged to the top of the support plate (14), the slider 1 (7) is rotatably connected to the slider 2 (9), the slider 2 (9) is rotatably connected to the slider 3 (10), the slider 1 (7), the slider 2 (9), and the slider 3 (10) constitute a telescopic rod, and the telescopic rod can be embedded in or extended out of the sleeve (5); a slide groove is provided on the sleeve (5), a plurality of tooth grooves are provided on one side edge of the slide groove, and the tooth openings of the tooth grooves are all bent upward with an arc setting, and a plurality of tooth grooves constitute a strip-shaped tooth groove; the control component is connected to the slider 3 (10), and the control component can engage with or disengage from any tooth groove so that the position of the telescopic rod in the sleeve (5) can be arbitrarily adjusted.

2. The notebook computer stand using an adjustable telescopic structure according to claim 1, characterized in that: The control component comprises a swing rod (8) and a torsion spring (10.1) connected to a rotating part (10.3); the swing rod (8) is rotatably connected to the slider three (10); and a first bayonet and a second bayonet are arranged at intervals on the swing rod (8) located at the rotation center; the first bayonet is located between the outer end of the torsion spring (10.1) and the second bayonet; the opening of the first bayonet is larger than the opening of the second bayonet; the opening of the second bayonet is matched with the size of the outer end of the torsion spring (10.1); a cylinder (8.2) is hinged at the free end of the swing rod (8); and the outer end of the torsion spring (10.1) can alternately act on the first bayonet and the second bayonet to press the swing rod (8) to rotate so that the cylinder (8.2) tilts up or moves down; The rotating part (10.3) is twisted to lift the outer end of the torsion spring (10.1), and the swing rod (8) is moved to rotate it clockwise. After the rotating part (10.3) is loosened, the outer end of the torsion spring (10.1) acts on the second bayonet. Under the action of the torsion spring (10.1), the cylinder (8.2) on the free end of the swing rod (8) is tilted and pressed against the side of the slide groove without the tooth groove, so as to facilitate the movement of the telescopic rod to completely embed into the sleeve (5); When the rotating part (10.3) is twisted to lift the outer end of the torsion spring (10.1), the swing rod (8) rotates counterclockwise under the gravity of the cylinder (8.2). After the rotating part (10.3) is released, the outer end of the torsion spring (10.1) acts on the first bayonet. Under the action of the torsion spring (10.1), the cylinder (8.2) on the free end of the swing rod (8) moves downward and can be engaged in the tooth groove. By pulling the telescopic rod along the bending direction of the tooth groove, the cylinder (8.2) can be engaged in different tooth grooves to achieve the height adjustment of the graded control adjustment rod.

3. A notebook computer stand with an adjustable telescopic structure according to claim 1 or 2, characterized in that: The slider (2) (9) is provided with a first circular hole (9.1) and a second circular hole (9.2); the slider (1) (7) is connected to a first cylinder (7.2); the slider (3) (10) is connected to a second cylinder (10.2); the first cylinder (7.2) is rotatably connected in the circular hole (9.1); the second cylinder (10.2) is rotatably connected in the second circular hole (9.2); so that the slider (1) (7) and the slider (3) (10) can be folded through the slider (2) (9).

4. The notebook computer stand using an adjustable telescopic structure according to claim 2, characterized in that: The front and rear ends of the bottom plate (15) are respectively provided with a first rectangular groove (15.1) and a second rectangular groove (15.2); the bottom of the support plate (14) is rotatably connected to the first rotating shaft hole (15.3) on both sides of the first rectangular groove (15.1) through a first pin shaft (13); the bottom of the sleeve (5) is rotatably connected to the second rotating shaft hole (15.4) on both sides of the second rectangular groove (15.2) through a second pin shaft (11); the width of the first rectangular groove (15.1) is greater than the width of the bottom of the support plate (14); the width of the second rectangular groove (15.2) is greater than the width of the bottom of the sleeve (5); and the bottom of the support plate (14) and the bottom of the sleeve (5) are both bent into an arc-shaped portion design to achieve a reserved space required for the support plate (14) and the sleeve (5) to be folded.

5. The notebook computer stand with an adjustable telescopic structure according to claim 1, characterized in that: The foldable connecting rod comprises a No. 1 connecting rod (1) and a No. 2 connecting rod (4). The middle parts of the No. 1 connecting rod (1) and the No. 2 connecting rod (4) are rotatably connected to form an X-shaped structure for adjusting the angle. The upper end of the No. 1 connecting rod (1) is rotatably connected to a left support plate (14), and the upper end of the No. 2 connecting rod (4) is rotatably connected to a right support plate (14). The support plates (14) are provided with longitudinally arranged vertical grooves (14.4). The lower end of the No. 1 connecting rod (1) is slidably arranged in the vertical groove (14.4) of the right support plate (14) through a pin shaft rod (3), and the lower end of the No. 2 connecting rod (4) is slidably arranged in the vertical groove (14.4) of the left support plate (14) through a pin shaft rod (3).

6. The notebook computer stand using an adjustable telescopic structure according to claim 1, characterized in that: The slider (10) is connected to a cylindrical protrusion (10.4), the swing rod (8) is provided with a hole (8.1), and the hole (8.1) of the swing rod (8) is sleeved on the cylindrical protrusion (10.4) to realize the rotation of the swing rod (8).

7. The notebook computer stand with an adjustable telescopic structure according to claim 1, characterized in that: The cylinder (8.2) is adapted to the tooth groove in size, and waist-shaped grooves connected to the slide groove are provided at the top and bottom of the slide groove, the bottom of the waist-shaped groove is at the same height as the top of the tooth groove, and the waist-shaped groove is adapted to the cylinder (8.2) in size.

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