A portable reading aid device

Abstract

This invention relates to the field of reading aids, and specifically discloses a portable reading aid, comprising a first clamping frame, a second clamping frame rotatably mounted on the side of the first clamping frame, a rotating frame fixedly mounted on the side end of the first clamping frame, and a side rotating frame movably mounted on the side end of the second clamping frame, the rotating frame and the side rotating frame being rotatably connected; wherein, the inner walls of both the first and second clamping frames are provided with inclined grooves, and the space between the two inclined grooves is used to place a book, and two guide rods with a width smaller than the guide grooves can slide inside the guide grooves without jamming, and by designing the second clamping frame to be movable, it can be kept at the same level as the first clamping frame after unfolding, reducing the horizontal difference of the book during reading, further improving the comfort of reading, and the whole process only requires the user to unfold the second clamping frame and make secondary adjustments.

Description

Technical Field

[0001] This invention relates to the field of reading aids, and in particular to a portable reading aid. Background Technology

[0002] With the development of book culture, more and more people enjoy reading paper books. However, reading books outdoors is often limited by the environment, requiring the use of reading aids. Existing reading aids have the following drawbacks:

[0003] 1. Existing reading aids cannot be connected to the headrest of a car, so manual support is still required when using them. When manually supported for a long time, the hand will tremble over time and the curve will change, making it difficult for the user to keep the book in the same position, resulting in uncomfortable reading.

[0004] 2. Existing reading aids cannot be adjusted to a suitable reading angle, which causes visual fatigue and has a significant impact on eyesight when users read books.

[0005] 3. Existing reading aids are not portable because they cannot fold books, resulting in a large overall size when carried around. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a portable reading aid device. This solves the technical problem that existing reading aid devices, due to their inability to connect to a car's headrest, still require manual support during use. Prolonged manual support can cause hand tremors and erratic hand movements, making it difficult for users to maintain a consistent reading position and resulting in discomfort.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A portable reading aid includes a first clamping frame, a second clamping frame rotatably mounted on the side of the first clamping frame, a rotating frame fixedly mounted on the side end of the first clamping frame, and a side rotating frame movably mounted on the side end of the second clamping frame, wherein the rotating frame and the side rotating frame are rotatably connected.

[0011] The inner walls of the first and second clamping frames are provided with inclined grooves, and the space between the two inclined grooves is used to place books. The inner walls of the first and second clamping frames near the ends are provided with rectangular slide rails. A main support frame is slidably installed inside each rectangular slide rail. An upper clamping pad is installed above each main support frame, and each upper clamping pad is used to fix the books.

[0012] Two second clamping rings are fixedly installed on the side end of the first clamping frame. Each second clamping ring has a first clamping ring installed on its side. Each first clamping ring and the second clamping ring form a clamping mechanism. Each clamping mechanism is used to fix the car headrest rod.

[0013] Preferably, the second clamping frame has an inner sliding groove at its side end, and the cross-sectional shape of the side rotating frame is L-shaped;

[0014] The horizontal section of the side rotating frame is installed inside the inner slide groove, and two guide grooves are opened through the horizontal section of the side rotating frame. Two guide rods are fixedly installed on the inner wall of the inner slide groove.

[0015] The horizontal section of the side-rotating frame is sleeved on the two guide rods through two guide grooves. Two first springs and a second spring are fixedly installed at the upper and lower ends of the horizontal section of the side-rotating frame, respectively. The first springs are in a compressed state and the second springs are in a stretched state.

[0016] A rotating shaft is rotatably mounted between the rotating frame and the side rotating frame.

[0017] Preferably, a side support frame is fixedly installed at the lower end of the first clamping frame, a side slide rod is horizontally slidably installed inside the side support frame, and a protrusion is fixedly installed on the upper surface of the end of the side slide rod;

[0018] The upper surface of the side support frame is provided with a slide rail that matches the protrusion. A diagonal brace is fixedly installed at the side end of the side support frame, and the diagonal brace and the side support frame are at an angle. Two support rods are fixedly installed at the top of the first clamping frame. An extension rod is slidably installed inside each support rod, and the end of each extension rod is fixedly connected to the side wall of the first clamping ring.

[0019] Each of the support rods has a threaded hole on its side wall, and each of the extension rods has a threaded rod fixedly installed at its side end. Each threaded rod is installed in the threaded hole of the support rod.

[0020] Preferably, a guide rod is fixedly installed on the side wall of each of the first clamping rings, and each guide rod slides through the interior of the support rod;

[0021] Each of the first and second clamping rings has a rubber pad fixedly installed on its inner wall, each of the main support frames has a T-shaped cross-section, and the bottom of each of the main support frames is located on the outer wall of the first and second clamping frames.

[0022] Each of the main support frames has a bottom clamp pad fixedly installed at its upper end.

[0023] Preferably, a vertical slide rail is provided between each of the bottom clamping pads and the main support frame, a vertical slide plate is slidably installed inside each of the vertical slide rails, and a torsion spring rotating rod frame is fixedly installed on the top of each of the vertical slide plates;

[0024] Each of the upper clamping pads has a connecting plate fixedly installed at its lower end. Each connecting plate is rotatably sleeved on the outside of the torsion spring rotating rod frame. A torsion spring is provided between the connecting plate and the torsion spring rotating rod frame. Each of the vertical sliding plates has an L-shaped stop bar fixedly installed on its side wall. The L-shaped stop bar is used to limit the rotation angle of the upper clamping pad. Two third springs are fixedly installed between the lower ends of each bottom clamping pad and the upper clamping pad.

[0025] Each of the bottom clamp pads has an anti-slip pad fixedly installed on the front surface, and the vertical slide plate and the vertical slide rail are both T-shaped in cross-section.

[0026] (III) Beneficial Effects

[0027] First, the user can attach the two first clips and rubber pads at the side end of the first clip frame to the headrest rod of the front headrest. At the same time, the diagonal support at the lower end of the first clip frame will be in close contact with the back of the front seat. At this time, the first clip frame is fixed and the user can open the first clip frame for reading. By designing the first and second clip frames to be foldable, it is convenient for users to carry books when going out, so as to fold the books for carrying, thereby improving the convenience of carrying them. It is also convenient for users to read in multiple scenarios. In addition, the first clip frame can be used with the car headrest rod to improve the convenience of reading when the user is riding in the car.

[0028] Second, the user can directly rotate the upper clamping pad. The rotation of the upper clamping pad will cause the connecting plate to rotate outside the torsion spring rotating rod frame, and at the same time, it will cause the torsion spring on the surface of the torsion spring rotating rod frame to rotate. Simultaneously, the two third springs will deform. The upper clamping pad can rely on the force of the torsion spring and the two third springs to fix the book cover. The operation of the upper clamping pad is convenient and quick, reducing the difficulty of fixing the book. At the same time, an L-shaped stop bar is set on the back of the vertical slide. The L-shaped stop bar can control the rotation angle of the upper clamping pad, preventing the upper clamping pad from being damaged by excessive rotation, thus improving the durability of the equipment.

[0029] Third, the opening angle between the upper and lower clamping pads is larger, making it easier to place book covers that are not easily deformed. At the same time, the main support frame can slide inside the rectangular slide rail, thus fixing book covers of different widths. Furthermore, the main support frame can be moved to different positions to fix the book cover by the side, improving the ability to fix different types of book covers. In addition, the anti-slip pad on the front surface of the lower clamping pad can increase the friction between the upper and lower clamping pads, improving the overall stability when fixed.

[0030] Fourth, the user places the two second clamping rings on the surface of the pillow rod, and then reinstalls the threaded rod. At this time, the first and second clamping rings hold the pillow rod in place, and the first clamping frame and the car pillow rod are fixed. By using adjustable first and second clamping rings to connect with the pillow rod, pillow rods of different cars can be connected. This allows the user to read books while sitting in the back seat of the car without having to support the book with both hands, greatly improving the convenience of reading.

[0031] 5. The diagonal brace at the end of the side support frame will fit against the back of the car. The diagonal brace and the side support frame are inclined, so the diagonal brace can play a good supporting role. At this time, the tilt angle of the first clamp frame can match the user's viewing angle and improve the user's viewing comfort. In addition, the presence of the second clamp and the diagonal brace means that even if the first clamp frame is flat on a horizontal table, the second clamp and the diagonal brace can still keep the first clamp frame in a tilted state, which can improve the user's viewing comfort in different scenarios.

[0032] 6. Users can pull the side slide bar outward. The side slide bar moves outward inside the side support frame. At the same time, the movement of the side slide bar will drive the protrusion to move. The protrusion moves in the slide rail opened in the side support frame. After the side slide bar has moved outward, it can support the second clamping frame after it rotates, so that the second clamping frame can keep the first clamping frame at the same level, reduce the level difference, and further improve the reading comfort.

[0033] 7. When the second clamping frame rotates outward, it will gradually shift and slide outside the side frame. At the same time, the two guide rods on the side wall of the second clamping frame will slide in the two guide slots. The width of the two guide rods is smaller than that of the guide slots, so they can slide inside the guide slots without jamming. By designing the second clamping frame to be movable, it can be made to maintain the same level as the first clamping frame after unfolding, reducing the horizontal difference of the book when reading and further improving the comfort of reading the book. Moreover, the whole process only requires the user to unfold the second clamping frame and make secondary adjustments. Attached Figure Description

[0034] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] Figure 1 This is a structural diagram of the first clamping frame of the present invention;

[0036] Figure 2 This is a structural diagram of the second clamping frame of the present invention;

[0037] Figure 3 This is a structural diagram of the rotating frame of the present invention;

[0038] Figure 4 This is a structural diagram of the guide rod of the present invention;

[0039] Figure 5 This is a structural diagram of the side rotating frame of the present invention;

[0040] Figure 6 This is a structural diagram of the second clamping ring of the present invention;

[0041] Figure 7 This is a structural diagram of the upper clamping pad of the present invention;

[0042] Figure 8 This is a structural diagram of the bottom clamping pad of the present invention.

[0043] Legend: 1. First clamping frame; 11. Inclined groove; 12. Rectangular slide rail; 13. Side support frame; 14. Inclined brace; 15. Side slide rod; 16. Protrusion; 17. Rotating frame; 18. Rotating shaft; 2. Second clamping frame; 21. First spring; 22. Inner slide groove; 23. Guide rod; 24. Side rotating frame; 25. Guide groove; 26. Second spring; 3. Support rod; 31. Extension rod; 32. Threaded rod; 33. Guide rod; 34. First clamping ring; 35. Second clamping ring; 36. Rubber pad; 4. Bottom clamping pad; 41. Main support frame; 42. Upper clamping pad; 43. Vertical slide rail; 44. Anti-slip pad; 45. Third spring; 46. Vertical sliding plate; 47. L-shaped stop bar; 48. Torsion spring rotating rod frame; 49. Connecting plate. Detailed Implementation

[0044] This application provides a portable reading aid device that effectively solves the problem that existing reading aid devices, due to their inability to connect to the headrest of a car, still require manual support during use. Prolonged manual support can cause hand tremors and erratic hand movements, making it difficult for the user to maintain the book in one position and resulting in uncomfortable reading.

[0045] Example

[0046] The technical solution in this application effectively solves the problem that existing reading aids, due to their inability to connect to the headrest of a car, still require manual support during use. Prolonged manual support can cause hand tremors and erratic hand movements, making it difficult for the user to maintain a consistent reading position and resulting in uncomfortable viewing. The overall approach is as follows:

[0047] To address the problems existing in the prior art, the present invention provides a portable reading aid device, including a first clamping frame 1, a second clamping frame 2 rotatably mounted on the side of the first clamping frame 1, a rotating frame 17 fixedly mounted on the side end of the first clamping frame 1, and a side rotating frame 24 movably mounted on the side end of the second clamping frame 2, wherein the rotating frame 17 and the side rotating frame 24 are rotatably connected.

[0048] The inner walls of both the first clamping frame 1 and the second clamping frame 2 are provided with inclined grooves 11, and the space between the two inclined grooves 11 is used to place books. The inner walls of both the first clamping frame 1 and the second clamping frame 2 near their ends are provided with rectangular slide rails 12. A main support frame 41 is slidably installed inside each rectangular slide rail 12, and an upper clamping pad 42 is installed above each main support frame 41. Each upper clamping pad 42 is used to fix a book. Two second clamping rings 35 are fixedly installed on the side end of the first clamping frame 1, and each second clamping ring 35 has a side... The device is equipped with a first clamping ring 34, and each first clamping ring 34 and second clamping ring 35 forms a set of clamping mechanisms. Each set of clamping mechanisms is used to fix the car headrest rod. Users can open the first clamping frame 1 for reading. By designing the first clamping frame 1 and the second clamping frame 2 to be foldable, users can easily fold and carry books when going out, improving the convenience of carrying them. At the same time, it is convenient for users to read in multiple scenarios. The first clamping frame 1 can cooperate with the car headrest rod to improve the convenience of reading when riding in a car.

[0049] The second clamping frame 2 has an inner sliding groove 22 at its side end, and the side rotating frame 24 has an L-shaped cross-section. The horizontal section of the side rotating frame 24 is installed inside the inner sliding groove 22, and two guide grooves 25 are formed through the horizontal section. Two guide rods 23 are fixedly installed on the inner wall of the inner sliding groove 22. The horizontal section of the side rotating frame 24 is sleeved on the two guide rods 23 through the two guide grooves 25. Two first springs 21 and second springs 22 are fixedly installed at the upper and lower ends of the horizontal section of the side rotating frame 24, respectively. Spring 26, with the first spring 21 in a compressed state and the second spring 26 in a stretched state; wherein, a rotating shaft 18 is rotatably installed between the rotating frame 17 and the side rotating frame 24, the extension rod 31 moves to drive the first clamping ring 34 to move, after the first clamping ring 34 moves and a certain distance is generated between it and the second clamping ring 35, the user puts the two second clamping rings 35 on the surface of the pillow rod, and then installs the threaded rod 32 back to its original position. At this time, the first clamping ring 34 and the second clamping ring 35 fit the pillow rod, and the first clamping frame 1 and the car pillow rod are fixed.

[0050] A side support frame 13 is fixedly installed at the lower end of the first clamping frame 1. A side slide rod 15 is horizontally slidably installed inside the side support frame 13, and a protrusion 16 is fixedly installed on the upper surface of the end of the side slide rod 15. A slide rail adapted to the protrusion 16 is opened on the upper surface of the side support frame 13. A diagonal brace 14 is fixedly installed at the side end of the side support frame 13, and the diagonal brace 14 and the side support frame 13 are at an angle. Two support rods 3 are fixedly installed at the top of the first clamping frame 1. An extension rod 31 is slidably installed inside each support rod 3. The end of each extension rod 31 is fixedly connected to the side wall of the first clamping ring 34. A threaded hole is opened on the side wall of each support rod 3. A threaded rod 32 is fixedly installed at the side end of each extension rod 31. Each threaded rod 32 is installed in the threaded hole of the support rod 3.

[0051] Each of the first clamping rings 34 has a guide rod 33 fixedly installed on its side wall, and each guide rod 33 slides through the support rod 3. Each of the first clamping rings 34 and the second clamping rings 35 has a rubber pad 36 fixedly installed on its inner wall. Each of the main support frames 41 has a T-shaped cross-section, and the bottom of each main support frame 41 is located on the outer wall of the first clamping frame 1 and the second clamping frame 2. Each of the main support frames 41 has a bottom clamping pad 4 fixedly installed at its upper end. The user can directly rotate the upper clamping pad 42. The rotation of the upper clamping pad 42 will cause the connecting plate 49 to rotate outside the torsion spring rotating rod frame 48, and at the same time, it will cause the torsion spring on the surface of the torsion spring rotating rod frame 48 to rotate. Simultaneously, the two third springs 45 will deform. The upper clamping pad 42 can fix the book cover by the force of the torsion spring and the two third springs 45.

[0052] A vertical slide rail 43 is provided through each of the bottom clamping pads 4 and the main support frame 41. A vertical slide plate 46 is slidably installed inside each of the vertical slide rails 43. A torsion spring rotating rod frame 48 is fixedly installed on the top of each vertical slide plate 46. A connecting plate 49 is fixedly installed at the lower end of each upper clamping pad 42. Each connecting plate 49 is rotatably sleeved on the outside of the torsion spring rotating rod frame 48, and a torsion spring is provided between the connecting plate 49 and the torsion spring rotating rod frame 48. An L-shaped stop bar 47 is fixedly installed on the side wall of each vertical slide plate 46, and the L-shaped stop bar 47 is used to limit the rotation angle of the upper clamping pad 42. Each bottom clamping pad 4 and upper clamping pad 42... Two third springs 45 are fixedly installed between the lower ends; anti-slip pads 44 are fixedly installed on the front surface of each bottom clamp pad 4; the vertical slide plate 46 and the vertical slide rail 43 are both T-shaped in cross section; the vertical slide plate 46 slides inside the vertical slide rail 43 between the bottom clamp pad 4 and the main support frame 41; at this time, the opening angle between the upper clamp pad 42 and the bottom clamp pad 4 is larger, making it easier to place book covers that are not easily deformed; at the same time, the main support frame 41 can slide inside the rectangular slide rail 12, thereby fixing book covers of different widths; and the main support frame 41 can be moved to different positions to fix the book cover by the side, improving the ability to fix different types of book covers.

[0053] Working principle:

[0054] The first step involves placing the book between the first clip 1 and the second clip 2 before carrying it out. The book cover is then placed inside the inner walls of both clips. The user pulls the two upper clips 42 inside either clip 1 or clip 2 upwards, causing them to rotate. Once the upper clips 42 have rotated and opened to a certain angle, the user can place the book cover between the upper clips 42 and the bottom clip 4. Releasing the upper clips 42 secures the book cover. The user can then rotate clip 1 and clip 2 to close them, making the clips single-sided for easy carrying. When a user wants to read a book while sitting in the back seat of a car, the user can clip the two first clips 34 and the rubber pad 36 on the side end of the first clip frame 1 onto the headrest rod of the front headrest. At the same time, the diagonal support 14 at the lower end of the first clip frame 1 will be in close contact with the back of the front seat. At this time, the first clip frame 1 is fixed and the user can open the first clip frame 1 to read. By designing the first clip frame 1 and the second clip frame 2 to be foldable, it is convenient for users to carry books when they go out. The books can be folded and carried, which improves the convenience of carrying them. It is also convenient for users to read in multiple scenarios. Moreover, the first clip frame 1 can be used with the car headrest rod to improve the convenience of reading when riding in a car.

[0055] In the second step, the inclined grooves 11 inside the first clamping frame 1 and the second clamping frame 2 are both inclined, which makes the pages of the book fit the inner walls of the first clamping frame 1 and the second clamping frame 2 more closely. When fixing the book cover, the user can directly rotate the upper clamping pad 42. The rotation of the upper clamping pad 42 will drive the connecting plate 49 to rotate outside the torsion spring rotating rod frame 48, and at the same time drive the torsion spring on the surface of the torsion spring rotating rod frame 48 to rotate. At the same time, the two third springs 45 will deform. The upper clamping pad 42 can fix the book cover by relying on the force of the torsion spring and the two third springs 45. The operation of the upper clamping pad 42 is convenient and quick, reducing the difficulty of fixing the book. At the same time, an L-shaped stop bar 47 is provided on the back of the vertical slide plate 46. The L-shaped stop bar 47 can control the rotation angle of the upper clamping pad 42, preventing the upper clamping pad 42 from being damaged due to excessive rotation, thus improving the durability of the device.

[0056] When securing the book cover, the user can pull the upper clamping pad 42 upwards. The upward movement of the upper clamping pad 42 causes the vertical sliding plate 46 to move upwards. The vertical sliding plate 46 slides inside the vertical slide rail 43 between the bottom clamping pad 4 and the main support frame 41. At this time, the opening angle between the upper clamping pad 42 and the bottom clamping pad 4 is larger, making it easier to place book covers that are not easily deformed. At the same time, the main support frame 41 can slide inside the rectangular slide rail 12, thereby securing book covers of different widths. Furthermore, the main support frame 41 can be moved to different positions to secure the book cover from the side, improving the ability to secure different types of book covers. Additionally, the anti-slip pad 44 on the front surface of the bottom clamping pad 4 can increase the friction between the upper clamping pad 42 and the bottom clamping pad 4, improving the overall stability during securing.

[0057] Thirdly, when it is necessary to fix the first clamping frame 1 and the pillow rod, the user first rotates the two threaded rods 32. The two threaded rods 32 rotate away from the threaded holes opened in the support rod 3. Then the user can pull the threaded rods 32 to drive the extension rod 31 to move. The movement of the extension rod 31 drives the first clamping ring 34 to move. After the first clamping ring 34 moves and a certain distance is created between it and the second clamping ring 35, the user puts the two second clamping rings 35 on the surface of the pillow rod. Then the threaded rod 32 is installed back. At this time, the first clamping ring 34 and the second clamping ring 35 are fitted onto the pillow rod, and the first clamping frame 1 and the car pillow rod are fixed. By using the adjustable first clamping ring 34 and the second clamping ring 35 to connect with the pillow rod, the pillow rods of different cars can be connected. This allows the user to read books while sitting in the back seat of the car without having to support the book with both hands, which greatly improves the convenience of reading.

[0058] Furthermore, the second clamping ring 35, the support rod 3, and the first clamping frame 1 are inclined at an angle. Therefore, after the two sets of second clamping rings 35 are connected to the car headrest rod, the first clamping frame 1 is in an inclined state, and the diagonal support frame 14 at the end of the side support frame 13 will be in contact with the back of the car. The diagonal support frame 14 and the side support frame 13 are in an inclined state, so the diagonal support frame 14 can play a good supporting role. At this time, the tilt angle of the first clamping frame 1 can match the user's viewing angle and improve the user's viewing comfort. Moreover, with the presence of the second clamping ring 35 and the diagonal support frame 14, even if the first clamping frame 1 is flat on a horizontal table, the second clamping ring 35 and the diagonal support frame 14 can still keep the first clamping frame 1 in an inclined state, which can improve the user's viewing comfort in different scenarios.

[0059] Before the second clamping frame 2 is rotated open, the user can pull the side sliding rod 15 outward. The side sliding rod 15 moves outward inside the side support frame 13. At the same time, the movement of the side sliding rod 15 will drive the protrusion 16 to move. The protrusion 16 moves in the slide rail opened in the side support frame 13. After the side sliding rod 15 has moved outward, it can support the second clamping frame 2 after it is rotated, so that the second clamping frame 2 can be kept at the same level as the first clamping frame 1, reducing the level difference and further improving the reading comfort.

[0060] When the second clamping frame 2 unfolds and rotates outward, the rotation of the second clamping frame 2 will drive the side rotating frame 24 to rotate. The side rotating frame 24 rotates outside the rotating shaft 18. At the same time as the second clamping frame 2 rotates, since the first spring 21 is in a compressed state and the second spring 26 is in a stretched state, and the side sliding rod 15 on the side wall of the first clamping frame 1 limits the second clamping frame 2, the second clamping frame 2 will gradually move outward as it rotates outward. The second clamping frame 2 slides outside the side rotating frame 24. At the same time, the two guide rods 23 on the side wall of the second clamping frame 2 will slide in the two guide grooves 25. The width of the two guide rods 23 is smaller than that of the guide grooves 25, so they can slide inside the guide grooves 25 without jamming. By designing the second clamping frame 2 to be displaceable, the second clamping frame 2 can be kept at the same level as the first clamping frame 1 after unfolding, reducing the horizontal difference of the book when reading, and further improving the comfort of reading the book. Moreover, the whole process only requires the user to unfold the second clamping frame 2 and then make secondary adjustments.

[0061] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A portable reading aid device, comprising a first clamping frame (1), characterized in that, The first clamping frame (1) is rotatably mounted on the side of the second clamping frame (2), the first clamping frame (1) is fixedly mounted on the side end of the first clamping frame (1), and the side rotating frame (24) is movably mounted on the side end of the second clamping frame (2). The rotating frame (17) and the side rotating frame (24) are rotatably connected. The inner walls of the first clamping frame (1) and the second clamping frame (2) are provided with inclined grooves (11), and the space between the two inclined grooves (11) is used to place books. The inner walls of the first clamping frame (1) and the second clamping frame (2) near the end are provided with rectangular slide rails (12). A main support frame (41) is slidably installed inside each rectangular slide rail (12). An upper clamping pad (42) is installed above each main support frame (41). Each upper clamping pad (42) is used to fix books. Two second clamping rings (35) are fixedly installed on the side end of the first clamping frame (1). Each second clamping ring (35) is equipped with a first clamping ring (34) on its side. Each first clamping ring (34) and the second clamping ring (35) form a clamping mechanism. Each clamping mechanism is used to fix the car headrest rod. Each of the main support frames (41) has a T-shaped cross-section, the bottom of each main support frame (41) is located on the outer wall of the first clamping frame (1) and the second clamping frame (2), and a bottom clamping pad (4) is fixedly installed at the upper end of each main support frame (41). Each of the bottom clamping pads (4) and the main support frame (41) is provided with a vertical slide rail (43) through it. Each of the vertical slide rails (43) is slidably installed with a vertical slide plate (46). Each of the vertical slide plates (46) is fixedly installed with a torsion spring rotating rod frame (48) at its top. Each of the upper clamping pads (42) is fixedly installed with a connecting plate (49) at its lower end. Each of the connecting plates (49) is rotatably sleeved on the outside of the torsion spring rotating rod frame (48), and a torsion spring is provided between the connecting plate (49) and the torsion spring rotating rod frame (48).

2. The portable reading aid device as described in claim 1, characterized in that, The second clamping frame (2) has an inner sliding groove (22) at its side end, and the side rotating frame (24) has an L-shaped cross-section. The horizontal section of the side rotating frame (24) is installed inside the inner slide groove (22).

3. A portable reading aid device as described in claim 2, characterized in that, The horizontal section of the side rotating frame (24) has two guide grooves (25) through it, and the inner wall of the inner slide groove (22) has two guide rods (23) fixedly installed. The horizontal section of the side-turning frame (24) is fitted over the two guide rods (23) via two guide slots (25).

4. A portable reading aid device as described in claim 1, characterized in that, Two first springs (21) and a second spring (26) are fixedly installed at the upper and lower ends of the horizontal section of the side rotating frame (24), respectively. The first spring (21) is in a compressed state and the second spring (26) is in a stretched state. A rotating shaft (18) is rotatably mounted between the rotating frame (17) and the side rotating frame (24).

5. A portable reading aid device as described in claim 1, characterized in that, A side support frame (13) is fixedly installed at the lower end of the first clamping frame (1). A side slide rod (15) is horizontally slidably installed inside the side support frame (13), and a protrusion (16) is fixedly installed on the upper surface of the end of the side slide rod (15). The upper surface of the side support frame (13) is provided with a slide rail that is compatible with the protrusion (16), and the side end of the side support frame (13) is fixedly installed with a diagonal brace (14), and the diagonal brace (14) and the side support frame (13) are at an angle.

6. A portable reading aid device as described in claim 1, characterized in that, Two support rods (3) are fixedly installed on the top of the first clamping frame (1). An extension rod (31) is slidably installed inside each support rod (3). The end of each extension rod (31) is fixedly connected to the side wall of the first clamping ring (34). Each of the support rods (3) has a threaded hole on its side wall, and each of the extension rods (31) has a threaded rod (32) fixedly installed at its side end. Each of the threaded rods (32) is installed in the threaded hole of the support rod (3).

7. A portable reading aid device as described in claim 6, characterized in that, Each of the first clamping rings (34) has a guide rod (33) fixedly installed on its side wall, and each guide rod (33) passes through the interior of the sliding and support rod (3); Each of the first clamping ring (34) and the second clamping ring (35) has a rubber pad (36) fixedly installed on its inner wall.

8. A portable reading aid device as described in claim 7, characterized in that, Each of the vertical sliding plates (46) has an L-shaped stop bar (47) fixedly installed on its side wall, and the L-shaped stop bar (47) is used to limit the rotation angle of the upper clamping pad (42). Two third springs (45) are fixedly installed between the lower ends of each of the bottom clamping pads (4) and the upper clamping pads (42). Each of the bottom clamp pads (4) has an anti-slip pad (44) fixedly installed on the front surface, and the vertical slide plate (46) and the vertical slide rail (43) are both T-shaped in cross-section.

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