Liftable writing desk
By designing a height-adjustable writing desk, and utilizing a combination of sliding grooves, sliders, and locking mechanisms, the problem of discomfort caused by a fixed desk height is solved, achieving convenient adjustment and efficient space utilization.
Patent Information
- Application Number
- CN202423004689.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The current writing desks have a fixed height, which cannot meet the needs of different people, leading to discomfort and potentially causing vision and physical damage.
Design a height-adjustable writing desk that uses a folding mechanism to adjust the desk height. Employ a combination of sliding grooves and sliders, and utilize a locking mechanism and a push-pull electric cylinder to achieve stable and convenient desk adjustment.
The tabletop features convenient height adjustment, reducing the risk of discomfort during use and improving ease of use and space utilization.
Smart Images
Figure CN223585456U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to writing desk technical field, concretely relates to a liftable writing desk. BACKGROUND
[0002] The north winter is cold, and students like to write homework on the kang and use computers during winter vacation, so a small table is needed to be placed on the kang. Because the height of the human body is different, the height of the writing desk is also different. The height of the small table sold on the market is fixed, so when students use it, it may be too high or too low. Using a table that is too high or too low will bring many discomforts to the human body. For example, long-term use of an unsuitable table may cause vision and waist and shoulder damage to the user. UTILITY MODEL CONTENT
[0003] In order to overcome one of the deficiencies of the prior art, the purpose of the utility model is to provide a liftable writing desk. The liftable writing desk can adjust the height, is easy to operate and fold.
[0004] To solve the above problems, the utility model adopts the following technical scheme:
[0005] A liftable writing desk, comprising a bottom frame and a table board, the bottom frame and the table board are hinged through folding mechanisms between both ends, each folding mechanism comprises a main rod and a vice rod, the lower end of the main rod and the vice rod is hinged with the bottom frame, the top of the vice rod is hinged with the back of the table board; a sliding groove is arranged on the main rod along the length direction, a sliding block is arranged in the main rod, the middle part of the vice rod is rotatably connected with the sliding block through a rotating shaft, the sliding block can be locked relative to the sliding groove, the upper end of the main rod is hinged with a movable rod, the other end of the movable rod is slidingly hinged with the back of the table board.
[0006] Further, the top and bottom of the sliding groove are provided with locking mechanisms for locking the sliding block.
[0007] Further, each set of locking mechanisms comprises a mounting seat, an opening arranged on the mounting seat and a card, the mounting seat is mounted in the main rod and located at the top or bottom of the sliding groove, the card is arranged in the opening, the sliding block is provided with a clamping tongue on both ends in the sliding direction, the two clamping tongues can be clamped into the corresponding openings respectively, and the card in each opening can clamp the corresponding clamping tongue.
[0008] Further, the side surface of the clamping tongue is provided with a clamping groove matched with the card.
[0009] Further, the mounting seat is fixed in the main rod by screws.
[0010] Further, the locking mechanism comprises a magnet, and a magnetic attraction structure matched with the magnet is arranged on the sliding block.
[0011] Further, a push-pushing electric cylinder is arranged on the outer wall or inside of the main rod, and an output end of the push-pushing electric cylinder is hingedly connected with the sliding block.
[0012] Further, a hinging seat is arranged on the outer wall of the main rod, and a mounting end of the push-pushing electric cylinder is hingedly connected on the hinging seat.
[0013] Further, a deformable block matched with the inner wall of the sliding groove is arranged on the sliding block, one end of the rotating shaft is screwed on the sliding block, the end of the rotating shaft connected with the sliding block also penetrates through the deformable block, and a pressing head matched with the deformable block is arranged on the corresponding end of the rotating shaft; and the outer end of the rotating shaft penetrates through the middle part of the auxiliary rod and forms an adjusting head.
[0014] Further, a mounting groove is arranged on the sliding block, and the deformable block is movably mounted in the mounting groove, and the rotating shaft can drive the deformable block to deform to extend out of the mounting groove and abut against the sliding groove on the corresponding side.
[0015] Compared with the prior art, the writing table has the following beneficial effects:
[0016] The writing table can improve the existing folding mechanism, solve the folding jamming problem by the design that the auxiliary rod slides relative to the main rod, and does not need external driving structure for driving and occupies no space, so that the bottom space of the whole writing table can be effectively utilized. In addition, the combination design of the sliding groove and the sliding block is designed, which is beneficial to the sliding of the auxiliary rod relative to the main rod, improves the convenience of opening or storing the table plate relative to the bottom frame, and reduces the jamming of the movement of the two. Meanwhile, the upper end of the main rod is hingedly connected with the back of the table plate through the movable rod, which effectively reduces the activity stroke of the main rod relative to the auxiliary rod, is beneficial to opening or storing, and the design that the sliding block can be locked relative to the sliding groove can fix the table plate relative to the bottom frame at the storage position or the unfolded position, and ensures the use convenience of the whole writing table.
[0017] The writing table will be further described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a structure schematic diagram of the embodiment of the utility model Figure 1 ;
[0019] Figure 2 is a structure schematic diagram of the embodiment of the utility model Figure 2 ;
[0020] Figure 3is a partial structure diagram of the embodiment of the utility model;
[0021] Figure 4 is the structure schematic diagram of the improved embodiment of the utility model;
[0022] Figure 5 is the structure schematic diagram of another embodiment of the utility model.
[0023] Explanation of drawing reference numeral:
[0024] Bottom frame 10, table plate 20, folding mechanism 30, main rod 31, auxiliary rod 32, sliding groove 33, sliding block 34, rotating shaft 35, movable rod 36, clamping tongue 37, clamping groove 38, push cylinder 39, hinged seat 3a, deformation block 3b, adjusting head 3d, extrusion head 3c, adjusting head 3d, mounting groove 3e, locking mechanism 40, mounting seat 41, opening 42, card 43. Specific implementation
[0025] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is in conjunction with the drawing and embodiment, and the utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.
[0026] Referring to Figures 1 to 5 The utility model discloses a kind of foldable writing desks shown in the drawing, including bottom frame 10 and table plate 20, the bottom frame 10 and table plate 20 both ends between are hinged by folding mechanism 30, each described folding mechanism 30 is including main rod 31 and auxiliary rod 32, the lower end of the main rod 31 and auxiliary rod 32 is hinged with the bottom frame 10, the top of the auxiliary rod 32 is hinged with the back of the table plate 20;Sliding groove 33 is provided on the main rod 31 along length direction, sliding block 34 is provided in the main rod 31, the middle part of the auxiliary rod 32 is rotatably connected with the sliding block 34 by rotating shaft 35, the sliding block 34 can be locked relative to the sliding groove 33, the upper end of the main rod 31 is hinged with movable rod 36, the other end of the movable rod 36 is hingedly connected with the back of table plate 20.
[0027] In the above embodiment, the design of sliding groove 33 and sliding block 34 can make main rod 31 or auxiliary rod 32 not need to slide relative to bottom frame 10 or table plate 20 again, such design can reduce the actual stroke of auxiliary rod 32 and main rod 31, so that structure is more compact. Wherein, auxiliary rod 32 and main rod 31 are hollow tubular structure, which can save materials, and also facilitate the design and installation of sliding groove 33 and sliding block 34. It should be noted that sliding groove 33 is opened on the side opposite to the two folding mechanisms 30, which can improve the overall appearance.
[0028] In addition, in the above structure, in order to facilitate installation, the bottom frame 10 and the table plate 20 are provided with hinge joints, which mainly cooperate with one end of the auxiliary rod 32, the main rod 31 and the movable rod 36. It needs to be pointed out that in the application, the sliding block 34 is located at one end of the sliding groove 33, at this time, the two ends of the movable rod 36 are rotated relative to the table plate 20 and the main rod 31, at this time, the movable rod 36 is parallel to the table plate 20 and the main rod 31, at this time, the main rod 31 and the auxiliary rod are actually in the state of overlapping each other, which improves the beauty during use and reduces the use space in the storage state. In order to realize that the movable rod 36 is parallel to the table plate 20 and the main rod 31, the hinge joint structure is designed between the movable rod 36 and the main rod 31, and the movable rod 36 and the main rod 31 can be swung to fit relative to the hinge joint. Actually, the back of the table plate 20 is provided with a sliding groove, and the hinge joint hinged with the upper end of the movable rod 36 is slidingly installed in the sliding groove.
[0029] The present lifting writing desk improves the existing folding mechanism 30, and solves the folding jamming problem by using the design that the auxiliary rod 32 slides relative to the main rod 31; at the same time, since no external driving structure is needed for driving and no space is occupied, the bottom space of the whole writing desk can be effectively utilized. In addition, the combination design of the sliding groove 33 and the sliding block 34 is designed, which is beneficial to the sliding of the auxiliary rod 32 relative to the main rod 31, improves the convenience of opening or storing the table plate 20 relative to the bottom frame 10, and reduces the jamming of the two movements. At the same time, the upper end of the main rod 31 is hinged to the back of the table plate 20 through the movable rod 36, which effectively reduces the activity stroke of the main rod 31 relative to the auxiliary rod 32, and is beneficial to opening or storing; the design that the sliding block 34 can be locked relative to the sliding groove 33 can make the table plate 20 be fixed at the storage position or the unfolded position relative to the bottom frame 10, and ensures the use convenience of the whole writing desk.
[0030] Referring to Figures 1 to 3 Therefore, in order to improve the use convenience, the top and bottom of the sliding groove 33 are provided with a locking mechanism 40 for locking the sliding block 34. The purpose of the locking mechanism 40 is mainly to lock the position of the sliding block 34 in the sliding groove 33, and then lock the position of the main rod 31 relative to the auxiliary rod 32. Therefore, the locking mechanism 40 can be a conventional pin and positioning hole structure, that is, the user can fix the sliding block 34 at both ends of the sliding groove 33 through the pin, and then adapt to the two states of storage and unfolding of the whole writing desk. Of course, this design is relatively troublesome, and the overall appearance is not good. Therefore, in one embodiment of the present application, the locking mechanism 40 includes a magnet, and the sliding block 34 is provided with a magnetic attraction structure matched with the magnet. Through such a design, when the whole writing desk is respectively in the storage position and the unfolded position, the sliding block 34 can be adsorbed and fixed on the corresponding end of the sliding groove 33, and then the position locking can be realized.
[0031] Further refer to Figure 3 In one embodiment of the present application, if the whole table board 20 has only two position adjustments, namely one unfolded position and the other one is the storage position, in order to realize mechanical locking and improve the stability of locking, each set of the locking mechanism 40 comprises a mounting seat 41, an opening 42 provided on the mounting seat 41 and a card 43, the mounting seat 41 is mounted in the main rod 31 and located at the top or bottom of the sliding groove 33, the card 43 is arranged in the opening 42, the sliding block 34 is provided with a latch 37 on both ends in the sliding direction, and the two latches 37 can be respectively clamped into the corresponding opening 42, and the card 43 in each opening 42 can clamp the corresponding latch 37. In this embodiment, the relative locking between the latch 37 and the card 43 can be achieved by friction or limiting structure, which is selected according to the actual use requirement. In addition, the card 43 is arranged along the inner wall of the opening 42, that is, in the form of U, so as to clamp the opposite sides of the latch 37 respectively. The card 43 is provided with a protruding portion protruding towards the center of the opening 42, so as to abut or clamp the side wall of the latch 37 or the corresponding structure. Obviously, if there are only two positions of expansion, it cannot meet the requirements, therefore, in the actual use process, the locking mechanism 40 located at the top of the sliding groove 33 can be directly designed, and the sliding block 34 is fixed on the sliding groove 33 by the sliding block 34.
[0032] In the above embodiment, the mounting seat 41 is fixed in the main rod 31 by screws, more specifically, it is fixed and installed in the inside of the main rod 31 and located at one end of the sliding groove 33.
[0033] In the above embodiment, in order to increase the stability, the side surface of the latch 37 is provided with a clamping groove 38 matched with the card 43, and the clamping groove 38 is matched with the protruding portion on the card 43. In addition, in one embodiment, in order to fix the card 43, the card 43 can be fixed in the opening by screws.
[0034] Refer to Figure 4 In one embodiment of the present application, in order to reduce the difficulty of unfolding or storing the whole writing desk and improve the automation, the outer wall or the inside of the main rod 31 is provided with a push cylinder 39, and the output end of the push cylinder 39 is hinged with the sliding block 34. In this embodiment, the locking mechanism 40 does not need to be designed, and only two states of complete extension and complete contraction of the push cylinder 39 can adapt to the unfolding and storage state of the whole writing desk.
[0035] In an improved embodiment, the outer wall of the main rod 31 is provided with a hinge seat 3a, and the mounting end of the pushing electric cylinder 39 is hinged on the hinge seat 3a, which is designed on the outside of the main rod 31, so as to facilitate the disassembly and maintenance of the later parts. Of course, in another improved embodiment, the pushing electric cylinder 39 can be installed in the main rod 31, so that the whole structure is more beautiful. It should be noted that in this embodiment, the pushing electric cylinder 39 is fixed on the inside of the main rod 31 by screws or directly fixed on the cover of the end of the main rod 31.
[0036] Referring to Figure 5 In order to realize the locking of the sliding block 34 relative to the sliding groove 33 at any position or several positions, so as to adjust the height of the whole table board 20, the sliding block 34 and the sliding groove 33 can be locked by screws, or the sliding block 34 and the sliding groove 33 are provided with pin holes, and the sliding block 34 and the sliding groove 33 are relatively fixed by a pin passing through the pin holes. Of course, in an embodiment, the sliding block 34 is provided with a deformation block 3b capable of deforming and cooperating with the inner wall of the sliding groove 33, one end of the rotating shaft 35 is screwed on the sliding block 34, the end of the rotating shaft 35 connected with the sliding block 34 also passes through the deformation block 3b, and the corresponding end of the rotating shaft 35 is provided with a pressing head 3c matched with the deformation block 3b; the outer end of the rotating shaft 35 passes through the middle of the auxiliary rod 32 and forms an adjusting head 3d. In use, when the rotating shaft 35 is rotated by the user, the deformation block 3b is deformed to release or tightly contact the sliding groove 33 by the rotating shaft 35. The adjusting head 3d can be a conventional rotor structure, which is convenient for the user to rotate the rotating shaft 35. In addition, the pressing head 3c is a detachable structure, such as a gasket, which is convenient for installation. Therefore, in an improved embodiment, the corresponding end of the rotating shaft 35 is provided with a ring groove, the pressing head 3c is sleeved on the rotating shaft 35, and then locked in the ring groove by a gasket, so that the pressing head 3c can be prevented from falling off the rotating shaft 35.
[0037] In the above improved scheme, in order to reduce the friction between the deformation block 3b and the sliding groove 33 when not in use, reduce the use effect, that is, reduce the difficulty of opening or storing the table board 20, the sliding block 34 is provided with a mounting groove 3e, the deformation block 3b is movably installed in the mounting groove 3e, and the rotating shaft 35 can deform the deformation block 3b to extend out of the mounting groove 3e and abut against the corresponding side of the sliding groove 33.
[0038] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art based on the present application all belong to the scope of protection required by the present application.
Claims
1. A lift-up writing desk, characterized in that, The utility model provides a folding table, which comprises a bottom frame and a table board, both ends of the bottom frame and the table board are hinged through folding mechanisms, each folding mechanism comprises a main rod and a vice rod, the lower ends of the main rod and the vice rod are hinged to the bottom frame, the top of the vice rod is hinged to the back of the table board, a sliding groove is arranged on the main rod along the length direction, a sliding block is arranged in the main rod, the middle part of the vice rod is rotatably connected with the sliding block through a rotating shaft, the sliding block can be locked relative to the sliding groove, the upper end of the main rod is hinged with a movable rod, the other end of the movable rod is slidably hinged to the back of the table board.
2. The elevating writing table according to claim 1, wherein: The top and bottom of the sliding groove are provided with locking mechanisms for locking the sliding block.
3. A writing desk according to claim 2, wherein: Each set of locking mechanisms comprises a mounting seat, an opening arranged on the mounting seat and a card, the mounting seat is mounted in the main rod and located at the top or bottom of the sliding groove, the card is arranged in the opening, the sliding block is provided with a clamping tongue on both ends in the sliding direction, the two clamping tongues can be clamped into the corresponding openings respectively, and the card in each opening can clamp the corresponding clamping tongue.
4. A writing desk according to claim 3, wherein: The side surface of the clamping tongue is provided with a clamping groove matched with the card.
5. The elevating writing table according to claim 1, wherein: A push electric cylinder is arranged on the outer wall or in the main rod, and the output end of the push electric cylinder is hinged to the sliding block.
6. A writing desk according to claim 5, wherein: A hinge seat is arranged on the outer wall of the main rod, and the mounting end of the push electric cylinder is hinged to the hinge seat.
7. The elevating writing table according to claim 1, wherein: A deformable block matched with the inner wall of the sliding groove is arranged on the sliding block, one end of the rotating shaft is screwed on the sliding block, the end of the rotating shaft connected with the sliding block also penetrates through the deformable block, one end of the rotating shaft is provided with a pressing head matched with the deformable block, and the other end of the rotating shaft penetrates through the middle part of the vice rod and forms an adjusting head.
8. A writing desk according to claim 7, wherein: An installation groove is arranged on the sliding block, the deformable block is movably installed in the installation groove, and the rotating shaft can drive the deformable block to deform to extend out of the installation groove and abut against the sliding groove on the corresponding side.