Book stand

Abstract

The utility model provides a book stand which comprises a base, a plurality of groups of supporting rods are arranged in the base, every two supporting rods are arranged in a left-right adjacent mode, the supporting rods comprise upper supporting rods and lower supporting rods, the lower ends of the lower supporting rods are rotatably connected with the base, the upper ends of the lower supporting rods are rotatably connected with the lower ends of the upper supporting rods, and the upper ends of the upper supporting rods are connected with the base in a sliding mode. The upper end of the upper supporting rod slides downwards to push the lower supporting rod to rotate back to the base so that the supporting rod can be bent out of the base, and the upper end of the upper supporting rod slides upwards to pull the lower supporting rod to rotate towards the base so that the supporting rod can be close to the base and gradually erected. According to the book stand, a small number of thin books such as one book and two books can be stored, the books can be stored or taken out conveniently, and other clamped books in the book stand cannot be affected when the books are pulled out or added.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery, more specifically to a bookend. Background Art

[0002] Using book stands to store and organize books can protect books and keep the office environment tidy. Some book stands in the prior art are used with two book stand boards of the same size. This type of book stand can easily cause a single book stand board to be lost, and all books are clamped in pairs. If there is a gap, the books will fall to one side or the other. Therefore, when taking out or adding books, the position of the book stand needs to be adjusted, which is not convenient to use. Some book stands also have rotating rods that are arranged in the shape of piano keys. The rotating rods are provided with torsion springs. Books can be embedded in the book stand by pressing down a single or multiple rotating rods. The rotating rods on both sides of the book apply a clamping force to the left and right covers of the book. After the book is pulled out, the pressed rotating rods can be reset without affecting other clamped books in the book stand. However, since the torsion springs on the depressed rotating support rods are compressed, the depressed rotating support rods also exert pressure on the book edge for turning pages under the action of the torsion spring rebound force. For some relatively thin books, when one or two books are stacked and stored, there is still a gap between the books and the rotating support rods on both sides. The clamping force on the covers on both sides is insufficient, and the books cannot overcome the pressure of the rotating support rods at the book edge. Therefore, such book stands are not suitable for storing a small number of thin books. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a book stand which can store a small number of thin books such as one or two books, and is convenient for storing or taking out books, and taking out or adding books will not affect other clamped books in the book stand.

[0004] The technical solution of the utility model is to provide a bookend, including a base, in which a plurality of groups of support rods are arranged in pairs, the support rods include an upper support rod and a lower support rod, the lower end of the lower support rod is rotatably connected to the base, the upper end of the lower support rod is rotatably connected to the lower end of the upper support rod, and the upper end of the upper support rod is slidably connected to the base; the upper end of the upper support rod slides downward to push the lower support rod to rotate back to the base so that the support rod bends outward from the base, and the upper end of the upper support rod slides upward to pull the lower support rod to rotate toward the base so that the support rod moves closer to the base and gradually stands up.

[0005] Compared with the prior art, the book stand of the utility model has the following advantages: when using the book stand of the utility model to store books, the book is pressed toward the base toward one or more groups of the support rods, and the upper ends of the upper support rods of the pressed support rods slide upward and pull the lower support rods to rotate toward the base so that the support rods are brought closer to the base and gradually stand up, and the support rods on the left and right sides of the book are maintained in a state of bending outward from the base, so that the book is embedded in the book stand and clamped by the support rods on the left and right sides of the book, and will not tip over, and the contact area between the bent support rods and the side of the book is also large, so that the book stands more firmly, and the standing support rods have a positive effect on the book embedded in the book stand. No pressure is generated on the sides, so even if the clamping force of the support rods on the left and right sides of the book is not strong enough, the book will not be pushed out of the book stand by the erected support rods. Therefore, the book stand of the utility model can also store a small number of thin books such as one or two books; and after pulling out the book, the upper support rod or the lower support rod can be pulled outward to make the upper end of the upper support rod slide downward so that the support rod is bent outward from the base to clamp the remaining books in the book stand. In this way, pulling out the book will not affect other clamped books in the book stand; adding books only requires pressing the newly added books against other support rods. Therefore, the book stand of the utility model is very convenient for storing or taking out books.

[0006] Preferably, a plurality of slide grooves are arranged on the inner side wall of the base, the upper end of the slide groove is open, the lower end is closed, and the slot width of the slide groove is smaller than the width of the slide groove; a slider is arranged on the upper end of the upper support rod, and the width of the slider is larger than the width of the upper support rod; the slider can enter the slide groove from the upper end opening of the slide groove and be limited in the slide groove by the slot of the slide groove, and the slider can slide up and down in the slide groove and drive the upper support rod to be inserted into or exit the slide groove from the slot of the slide groove. With this structure, the upper end of the upper support rod is slidably connected with the base, and it is also convenient to assemble the slider in the slide groove, so as to prevent the slider from being separated from the slide groove when sliding.

[0007] Preferably, the slider is fixedly arranged at the upper end of the upper support rod, a cylinder or a spherical body is arranged on the slider, and the sliding contact position between the slider and the slide groove is on the side of the cylinder or the spherical surface of the spherical body. With this structure, the contact between the slider and the slide groove is line contact or point contact, and when the slider slides in the slide groove, the angle between the upper support rod and the slide groove can be gradually increased or decreased, so as to facilitate the bending or erection of the support rod.

[0008] Preferably, the slider is rotatably connected to the upper end of the upper support rod, and a sliding plane is provided on the slider, and the sliding plane is a sliding contact surface between the slider and the slide groove. With this structure, when the slider slides in the slide groove, the upper support rod can rotate relative to the slider, so that the angle between the upper support rod and the slide groove can be gradually increased or decreased, which facilitates the bending or erection of the support rod.

[0009] Preferably, a receiving groove is provided below the slide groove, and the lower support rod can be embedded in the receiving groove when rotating toward the base. With this structure, the lower support rod is embedded in the receiving groove, avoiding interference with the side of the book embedded in the book stand, so that the book can be embedded deeper in the book stand, increasing the contact surface between the side of the book and the curved support rods on the left and right sides, making the book stand more stable.

[0010] Preferably, a cylindrical rotating shaft is provided at the upper end of the lower support rod, and a first circular groove is provided at the lower end of the upper support rod, the notch width of the first circular groove is smaller than the inner diameter of the cross section of the first circular groove, and a trumpet-shaped guide surface is provided outside the notch of the first circular groove, the rotating shaft can be embedded in the first circular groove along the guide surface and limited by the notch of the first circular groove, and the rotating shaft and the first circular groove can rotate relative to each other. With this structure, the upper support rod and the lower support rod are hinged to the rotating shaft through the first circular groove to achieve relative rotation, and it is also convenient for assembly or disassembly.

[0011] Preferably, a cylindrical fixed shaft is provided on the base, a second circular groove is provided at the lower end of the lower support rod, the width of the slot of the second circular groove is smaller than the inner diameter of the cross section of the second circular groove, and a trumpet-shaped guide surface is provided outside the slot of the second circular groove, the fixed shaft can be embedded in the second circular groove along the guide surface and limited by the slot of the second circular groove, and the fixed shaft and the second circular groove can rotate relative to each other. With this structure, the lower support rod and the base are hinged to the fixed shaft through the second circular groove to achieve relative rotation, and it is also convenient for assembly or disassembly.

[0012] Preferably, an elastic member is provided on the base, and the upper end of the upper support rod is connected to the lower end of the elastic member. The elastic member can be extended and retracted along the sliding direction of the upper end of the upper support rod, and the upper end of the upper support rod can slide upward to compress the elastic member, and the elastic member can rebound to push the upper end of the upper support rod to slide downward. When the support rod is erected, the rebound direction of the support rod and the elastic member are in the same direction. With this structure, the bent support rod can maintain structural stability due to the action of the elastic member, stably clamp or support the side of the book, and when the support rod is erected, since the rebound direction of the support rod and the elastic member are in the same direction, the elastic member does not generate a torque on the erected support rod, and can not apply an elastic force to the erected support rod to make it bend, so that the erected support rod will not generate pressure on the side of the book embedded in the book stand; when the book in the book stand is taken out, it is only necessary to slightly pull the upper support rod or the lower support rod outward, and the elastic member can rebound to make the upper end of the upper support rod slide downward, so that the support rod returns to a bent state.

[0013] Preferably, an elastic member is provided between the upper support rod and the lower support rod, and the two ends of the elastic member are respectively connected to the inner side of the upper support rod and the inner side of the lower support rod, and the upper end of the upper support rod can slide upward to stretch the elastic member, and the elastic member rebounds to pull the upper end of the upper support rod to slide downward, and when the support rod is erected, the rebound direction of the support rod and the elastic member are in the same direction. With this structure, the bent support rod can maintain structural stability due to the action of the elastic member, stably clamp or support the side of the book, and when the support rod is erected, since the rebound direction of the support rod and the elastic member are in the same direction, the elastic member does not generate a torque on the erected support rod, and can not apply an elastic force to bend the erected support rod, so that the erected support rod will not generate pressure on the side of the book embedded in the book stand; when the book in the book stand is taken out, it is only necessary to slightly pull the upper support rod or the lower support rod outward, and the elastic member can retract to make the upper end of the upper support rod slide downward, so that the support rod can return to a bent state.

[0014] Preferably, at least one plug-in piece is provided on one side outer wall of the base, and at least one plug-in slot is provided on the other side outer wall, and the plug-in piece of one book stand can be plugged into the plug-in slot of another book stand in a one-to-one correspondence. With this structure, multiple book stands can be connected end to end in sequence to form a long book stand for storing more books. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of Example 1 of the book stand of the present invention when no books are stored.

[0016] Figure 2 for Figure 1 A cross-sectional structural diagram of .

[0017] Figure 3 It is a schematic structural diagram of Example 1 of the book stand of the utility model when storing thin books.

[0018] Figure 4 for Figure 3 A cross-sectional structural diagram of .

[0019] Figure 5 An exploded view of Example 1 of the book stand of the utility model.

[0020] As shown in the figure: 1. base, 1-1. accommodating groove, 1-2. fixed axis, 1-3. sliding groove, 1-4. limiting part, 1-5. plug-in piece, 1-6. plug-in groove, 2. upper support rod, 2-1. slider, 2-2. first circular groove, 3. lower support rod, 3-1. rotating shaft, 3-2. second circular groove. DETAILED DESCRIPTION

[0021] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0022] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0023] It should also be understood that the terms "comprises", "having", "includes", "comprising", when used in this specification, indicate the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof. In addition, when a statement such as "...at least one" appears after a list of listed features, it modifies the entire listed features rather than modifying the individual elements in the list.

[0024] Embodiment 1:

[0025] like Figure 1 and Figure 5 As shown in the figure, the bookend of the utility model includes a base 1, and a plurality of slide grooves 1-3 are arranged on the inner side wall of the base 1. The upper end of the slide groove 1-3 is open, and a limiting portion 1-4 is arranged at the lower end. The limiting portion 1-4 closes the lower end of the slide groove 1-3. The cross-section of the slide groove 1-3 is convex, that is, the groove width of the slide groove 1-3 is smaller than the width of the slide groove 1-3. A receiving groove 1-1 is arranged below the slide groove 1-3, and a cylindrical fixed shaft 1-2 is arranged at the lower part of the receiving groove 1-1.

[0026] A plurality of groups of support rods are arranged in the base 1, and the support rods are arranged adjacent to each other in pairs. The support rods include an upper support rod 2 and a lower support rod 3. A cylindrical rotating shaft 3-1 is arranged at the upper end of the lower support rod 3, and a first circular groove 2-2 is arranged at the lower end of the upper support rod 2. The groove width of the first circular groove 2-2 is smaller than the inner diameter of the cross section of the first circular groove 2-2, and a trumpet-shaped guide surface is arranged outside the groove of the first circular groove 2-2. The rotating shaft 3-1 can be embedded in the first circular groove 2-2 along the guide surface and limited by the groove of the first circular groove 2-2. The rotating shaft 3-1 and the first circular groove 2-2 can rotate relative to each other, that is, the upper end of the lower support rod 3 is rotatably connected to the lower end of the upper support rod 2.

[0027] A second circular groove 3-2 is provided at the lower end of the lower support rod 3, the groove width of the second circular groove 3-2 is smaller than the inner diameter of the cross section of the second circular groove 3-2, and a trumpet-shaped guide surface is provided outside the groove of the second circular groove 3-2. The fixed shaft 1-2 can be embedded in the second circular groove 3-2 along the guide surface and limited by the groove of the second circular groove 3-2. The fixed shaft 1-2 and the second circular groove 3-2 can rotate relative to each other, that is, the lower end of the lower support rod 3 is rotatably connected to the base 1.

[0028] The upper end of the upper support rod 2 is provided with a slider 2-1, the width of which is greater than the width of the upper support rod 2, the slider 2-1 can enter the slide groove 1-3 from the upper end opening of the slide groove 1-3 and be limited in the slide groove 1-3 by the notch of the slide groove 1-3, and the slider 2-1 can slide up and down in the slide groove 1-3, that is, the upper end of the upper support rod 2 is slidably connected with the base 1. In this embodiment, the slider 2-1 is configured in the shape of a cylinder and is fixedly disposed at the upper end of the upper support rod 2, and the sliding contact position between the slider 2-1 and the slide groove 1-3 is on the side surface of the cylinder of the slider 2-1, and when the slider 2-1 slides up and down in the slide groove 1-3, the side surface of the cylinder rolls and changes the position of the line contact in the slide groove 1-3, so that the angle between the upper support rod 2 and the slide groove 1-3 gradually increases or decreases.

[0029] When the slider 2-1 slides up and down in the slide groove 1-3, the upper support rod 2 is driven to be inserted into or withdrawn from the slide groove 1-3 from the notch of the slide groove 1-3. When the slider 2-1 slides up, it can pull the lower support rod 3 to rotate toward the base 1 so that the support rod moves closer to the base 1 and gradually stands up. When the lower support rod 3 rotates toward the base 1, it can be inserted into the receiving groove 1-1. Figure 3 and Figure 4 As shown in , the book can be embedded in the book stand. The sliding block 2-1 can push the lower support rod 3 to rotate back to the base 1 so that the support rod bends outward from the base 1, as shown in FIG. Figure 1 and Figure 2 As shown in , the curved support rods can clamp or support the sides of the book.

[0030] At least one plug-in piece 1-5 is provided on one side outer wall of the base 1, and at least one plug-in slot 1-6 is provided on the other side outer wall. The plug-in piece 1-5 of one book stand can be plugged into the plug-in slot 1-6 of another book stand one by one, so that multiple book stands can be connected end to end in sequence and assembled into one, forming a long book stand for storing more books.

[0031] Embodiment 2:

[0032] The difference between the bookend of this embodiment and the embodiment 1 is that the slider 2-1 is not fixed to the upper end of the upper support rod 2, but is rotatably connected to the upper end of the upper support rod 2 (not shown), and a sliding plane is provided on the slider 2-1, which is the sliding contact surface between the slider 2-1 and the slide groove 1-3. When the slider 2-1 slides up and down in the slide groove 1-3, the upper support rod 2 can rotate relative to the slider 2-1, so that the angle between the upper support rod 2 and the slide groove 1-3 can be gradually increased or decreased, which facilitates the bending or standing of the support rod.

[0033] Embodiment 3:

[0034] The difference between the bookshelf of this embodiment and the embodiment 1 is that an elastic member is arranged on the base 1, and the elastic member can be a cylindrical coil spring. The elastic member is limited in the slide groove 1-3 and is located at the upper end of the slider 2-1 (not shown in the figure). The elastic member can be extended and retracted along the sliding direction of the upper end of the upper support rod 2, that is, the length direction of the slide groove 1-3. The upward sliding of the slider 2-1 can compress the elastic member, and the rebound of the elastic member can push the slider 2-1 to slide downward. When the support rod is erected, the rebound direction of the support rod is in the same direction as that of the elastic member.

[0035] The elastic member can keep the bent support rod structurally stable, stably clamping or supporting the side of the book. When the support rod is erected, since the support rod and the elastic member have the same rebound direction, the elastic member does not generate torque on the erected support rod, and cannot apply elastic force to the erected support rod to make it bend, so that the erected support rod will not generate pressure on the side of the book embedded in the book stand. After the book is pulled out of the book stand, it is only necessary to slightly pull the upper support rod 2 or the lower support rod 3 outward, and the elastic member can rebound to make the slider 2-1 slide downward, so that the support rod can return to the bent state.

[0036] Embodiment 4:

[0037] The difference between the bookend of this embodiment and the embodiment 3 is that the elastic member is arranged between the upper support rod 2 and the lower support rod 3 (not shown in the figure), and the two ends of the elastic member are respectively connected to the inner side of the upper support rod 2 and the inner side of the lower support rod 3. The upper end of the upper support rod 2 slides upward to stretch the elastic member, and the rebound of the elastic member can pull the upper end of the upper support rod 2 to slide downward. When the support rod is erected, the rebound direction of the support rod and the elastic member is in the same direction.

[0038] The function is the same as that in Example 3. The elastic member can keep the bent support rod structurally stable and stably clamp or support the side of the book. When the support rod is erected, since the rebound direction of the support rod and the elastic member is the same, the elastic member does not generate torque on the erected support rod, and cannot apply elastic force to the erected support rod to make it bend, so that the erected support rod will not generate pressure on the side of the book embedded in the book stand. After the book in the book stand is pulled out, it is only necessary to slightly pull the upper support rod 2 or the lower support rod 3 outward, and the elastic member can retract to make the slider 2-1 slide downward so that the support rod can return to the bent state.

[0039] The above are only specific embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced by equivalents without departing from the spirit and scope of the present invention, they should be included in the protection scope of the claims of the present invention.

Claims

1. A bookend, characterized in that: The invention comprises a base (1), wherein a plurality of support rods are arranged in pairs on the left and right sides, wherein the support rods comprise an upper support rod (2) and a lower support rod (3), wherein the lower end of the lower support rod (3) is rotatably connected to the base (1), the upper end of the lower support rod (3) is rotatably connected to the lower end of the upper support rod (2), and the upper end of the upper support rod (2) is slidably connected to the base (1); the upper end of the upper support rod (2) slides downward to push the lower support rod (3) to rotate away from the base (1), thereby causing the support rod to bend outward from the base (1); the upper end of the upper support rod (2) slides upward to pull the lower support rod (3) to rotate toward the base (1), thereby causing the support rod to move closer to the base (1) and gradually stand up.

2. The bookend according to claim 1, characterized in that: A plurality of slide grooves (1-3) are arranged on the inner side wall of the base (1), the upper end of the slide groove (1-3) is open and the lower end is closed, and the slot width of the slide groove (1-3) is smaller than the width of the slide groove (1-3); a slider (2-1) is arranged on the upper end of the upper support rod (2), and the width of the slider (2-1) is larger than the width of the upper support rod (2); the slider (2-1) can enter the slide groove (1-3) from the upper end opening of the slide groove (1-3) and be limited in the slide groove (1-3) by the slot of the slide groove (1-3), and the slider (2-1) can slide up and down in the slide groove (1-3) and drive the upper support rod (2) to be embedded in or exit the slide groove (1-3) from the slot of the slide groove (1-3).

3. The bookend according to claim 2, characterized in that: The slider (2-1) is fixedly arranged at the upper end of the upper support rod (2), a cylinder or a spherical body is arranged on the slider (2-1), and the sliding contact position between the slider (2-1) and the slide groove (1-3) is on the side surface of the cylinder or the spherical surface of the spherical body.

4. The bookend according to claim 2, characterized in that: The slider (2-1) is rotatably connected to the upper end of the upper support rod (2). A sliding plane is provided on the slider (2-1), and the sliding plane is a sliding contact surface between the slider (2-1) and the slide groove (1-3).

5. The bookend according to claim 2, characterized in that: A receiving groove (1-1) is provided below each of the slide grooves (1-3), and the lower support rod (3) can be embedded in the receiving groove (1-1) when rotating toward the base (1).

6. The bookend according to claim 1, characterized in that: A cylindrical rotating shaft (3-1) is arranged at the upper end of the lower supporting rod (3), and a first circular groove (2-2) is arranged at the lower end of the upper supporting rod (2). The width of the slot of the first circular groove (2-2) is smaller than the inner diameter of the cross section of the first circular groove (2-2), and a trumpet-shaped guiding surface is arranged outside the slot of the first circular groove (2-2). The rotating shaft (3-1) can be embedded in the first circular groove (2-2) along the guiding surface and limited by the slot of the first circular groove (2-2), and the rotating shaft (3-1) and the first circular groove (2-2) can rotate relative to each other.

7. The bookend according to claim 1, characterized in that: A cylindrical fixed shaft (1-2) is arranged on the base (1); a second circular groove (3-2) is arranged at the lower end of the lower support rod (3); the width of the slot of the second circular groove (3-2) is smaller than the inner diameter of the cross section of the second circular groove (3-2); a trumpet-shaped guide surface is arranged outside the slot of the second circular groove (3-2); the fixed shaft (1-2) can be embedded in the second circular groove (3-2) along the guide surface and limited by the slot of the second circular groove (3-2); the fixed shaft (1-2) and the second circular groove (3-2) can rotate relative to each other.

8. The bookend according to claim 1, characterized in that: An elastic member is provided on the base (1), the upper end of the upper support rod (2) is connected to the lower end of the elastic member, the elastic member can be extended and retracted along the sliding direction of the upper end of the upper support rod (2), the upper end of the upper support rod (2) can slide upward to compress the elastic member, and the elastic member can rebound to push the upper end of the upper support rod (2) to slide downward, and when the support rod is erected, the support rod and the elastic member have the same rebound direction.

9. The bookend according to claim 1, characterized in that: An elastic member is provided between the upper support rod (2) and the lower support rod (3), and the two ends of the elastic member are respectively connected to the inner side of the upper support rod (2) and the inner side of the lower support rod (3). The upper end of the upper support rod (2) can slide upward to stretch the elastic member, and the elastic member can rebound to pull the upper end of the upper support rod (2) to slide downward. When the support rod is erected, the support rod and the elastic member have the same rebound direction.

10. The bookend according to claim 1, characterized in that: At least one plug-in piece (1-5) is arranged on one side outer wall of the base (1), and at least one plug-in slot (1-6) is arranged on the other side outer wall. The plug-in piece (1-5) of one bookend can be plugged into the plug-in slot (1-6) of another bookend in a one-to-one correspondence.

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