Desk

Abstract

The utility model provides a desk and belongs to the technical field of desks. The problem that an existing turnover desk with single-side desk legs is poor in stability and safety during normal use is solved. The desk comprises a desk plate and at least one desk leg, one side of the desk plate is connected with the upper end of the desk leg, the other side of the desk plate is suspended, the upper end of the desk leg is provided with a square supporting tube in a square tube shape, a hinge shaft is fixedly connected to an end opening of the inner end of the square supporting tube, a receding opening is formed in the lower side wall of the inner end of the square supporting tube, and the square supporting tube is connected with a positioning piece on one side of the receding opening. A sliding rod arranged in the transverse direction is connected to the table plate, a strip-shaped hole formed in the transverse direction is formed in the end of the sliding rod, the sliding rod is inserted into the strip-shaped hole through a hinge shaft to be hinged to the supporting square pipe, and the end of the sliding rod can be inserted into the inner end of the supporting square pipe in the transverse direction and is inserted into the supporting square pipe through a positioning piece to position the supporting square pipe. According to the desk, the folding function of the desk plate is achieved, and meanwhile the folding safety performance is improved.

Description

Technical Field

[0001] This utility model belongs to the field of desk technology and relates to a desk. Background Technology

[0002] Due to limited space in existing classrooms, student desks typically need to have good storage capabilities. To improve the quality of students' lunch break, existing desks and chairs are usually designed for students to lie down and sleep. To provide more space for students to lie down, the tabletop is tilted forward, and the chair back is folded back and placed on the tabletop for napping. This allows for lying down and sleeping, which requires a large amount of space. Due to limited space in the classroom, desks with only one leg are currently used to make room on the other side. They can also utilize part of the aisle space when lying down. To ensure the stability of desks with only one leg, the tabletop and leg are fixedly connected. In this case, students are located under the tabletop when lying down, which can create a feeling of oppression and make them uncomfortable to use.

[0003] Existing desks with flip-top tables, such as the Chinese patent application [CN216165909U] which discloses a simple flip-top mechanism for the tabletop sub-panel, include a flip-top arm, a limiting block, a flip-top bolt, and a fixing base. The fixing base has a back plate and two side plates. The back plate of the fixing base is fixedly installed on the outside of the fixing frame at the bottom of the table. The flip-top arm is fixed to the bottom of the tabletop sub-panel, and the rear end of the flip-top arm is inserted between the two side plates of the fixing base. The rear end of the flip-top arm has a U-shaped groove without a round hole. The flip-top bolt passes laterally through the U-shaped groove of the flip-top arm, and its two ends are fixed to the two side plates of the fixing base. The cross-section of the column of the flip-top bolt is oval, and its two parallel surfaces cooperate with the U-shaped groove of the flip-top arm. The limiting block is set on the rear of the fixing base and has a slot. The rear end of the flip-top arm has a protrusion that cooperates with the slot of the limiting block.

[0004] The above structure achieves the flipping of the desktop sub-board through a U-shaped groove and flipping bolts. However, during the flipping process, the positioning is achieved by using the parallel surface of the flipping bolt and the U-shaped groove. When the desk is in use, there are many books piled on the desk, and the desk board bears a large weight. Therefore, the positioning is only achieved by the cooperation between the surface and the groove wall, resulting in poor positioning effect and affecting the normal use of the desk. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a new type of desk. The technical problem this utility model aims to solve is: how to address the issue of poor stability and safety of existing single-leg desks that can be flipped up during normal use.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A desk includes a tabletop and at least one leg. One side of the tabletop is connected to the upper end of the leg, and the other side is suspended. The upper end of the leg has a square-tube-shaped support tube. A hinge shaft is fixedly connected to the inner end of the support tube. A clearance opening is provided on the lower side wall of the inner end of the support tube. A positioning element is connected to one side of the clearance opening. A sliding rod arranged laterally is connected to the tabletop. A transversely oriented strip hole is provided at the end of the sliding rod. The sliding rod is hinged to the support tube via the hinge shaft and inserted into the strip hole. The end of the sliding rod can be inserted laterally into the inner end of the support tube and positioned by the positioning element inserted into the support tube.

[0008] During normal use, the outer end of the sliding rod is inserted into the inner end of the supporting square tube, and the sliding rod is positioned by a positioning piece inserted into the supporting square tube. Since the tabletop has legs on only one side, when the tabletop is set horizontally, the sliding rod needs to connect to the supporting square tube. Therefore, to ensure the stability of the connection between the tabletop and the supporting square tube, an insertion and positioning method is used to achieve a stable connection. When the tabletop needs to be flipped, the sliding rod drives the tabletop to slide horizontally inward. The hinge shaft can slide relative to each other within the slot, allowing the sliding rod to slide horizontally and flip. During flipping, the end of the sliding rod can be inserted into the clearance slot. The clearance slot allows for the sliding rod to be positioned, resulting in a shorter length of the sliding rod inserted into the supporting square tube. This ensures that the upper wall of the supporting square tube is not open, while there is a rotational gap between the sliding rod and the upper wall of the supporting square tube. This prevents students' fingers from getting stuck between the sliding rod and the supporting square tube, improving safety. The shape of the supporting square tube... This design increases support for the tabletop, making the connection between the tabletop and the supporting square tube more stable. Even if a student's hand accidentally gets caught between the supporting square tube and the tabletop during the flipping process, it will only be squeezed and can be quickly removed from the supporting square tube and the tabletop, improving the safety of the tabletop. When the tabletop is placed against the inside of the table leg, the chair can be placed on the side of the desk without table legs, and with the help of some aisle space, it can be used to lie down without the need for the desks in front and behind to make room, improving the space utilization of the desk when lying down. At the same time, the combination of the strip hole and the hinge shaft avoids the problem of excessive travel of the sliding rod when moving laterally. The strip hole and the hinge shaft provide support for the outer end of the sliding rod. The plug-in method improves the load-bearing capacity and practical stability of the tabletop, so that the desk with one side of the table leg can be flipped without affecting the stability of the desk when used normally. It improves the safety performance of flipping while realizing the tabletop flipping function.

[0009] In the aforementioned desk, the end of the sliding rod is square, and the outer wall of the end of the sliding rod is in contact with the inner wall of the supporting square tube.

[0010] By making the end of the sliding rod square, the sliding rod will not rotate or move back and forth when it is inserted laterally into the supporting square tube, thus improving the stability of the positioning of the sliding rod and the supporting square tube.

[0011] In the aforementioned desk, the sliding rod is U-shaped and fixed around the circumference of the desk. The desk legs are provided with two supporting square tubes along the front-back direction, and both outer ends of the sliding rod can be inserted into the corresponding supporting square tubes.

[0012] The shape of the sliding rod provides stable support for the tabletop, making the connection between the tabletop and the table legs more stable. Furthermore, the sliding rod can be used to connect to two supporting square tubes, making installation more convenient.

[0013] In the aforementioned desk, the positioning component is a positioning bolt, which is threadedly connected to the supporting square tube. A positioning hole is provided on the outer side wall of the end of the sliding rod, and the positioning bolt is inserted into the positioning hole and connected to the sliding rod.

[0014] By inserting the end of the positioning bolt into the positioning hole and connecting it to the sliding rod, the sliding rod can be positioned by means of insertion limit, thereby further improving the stability of the sliding rod positioning.

[0015] In the aforementioned desk, the positioning component is a clamping screw, which is threadedly connected to the supporting square tube. The end of the clamping screw can press the sliding rod against the inner wall of the supporting square tube.

[0016] By using a clamping and positioning method, there is no need to drill additional holes for the sliding rod. Since the sliding rod is inserted into the support square tube, there will not be a large thrust in the left and right directions during use. Therefore, the sliding rod can be positioned directly by clamping and positioning.

[0017] In the aforementioned desk, a clearance gap is formed between the lower wall of the tabletop and the sliding rod.

[0018] The clearance design allows for the insertion of the upper wall of the support tube into the sliding rod when the sliding rod is inserted into the support tube. This also ensures that the upper wall of the support tube is positioned between the tabletop and the sliding rod. This interlocking structure further enhances the stability of the tabletop during normal use.

[0019] In the aforementioned desk, a plug is connected to the sliding rod. The outer end face of the plug is an arc-shaped relief surface that can abut against the upper edge of the inner end of the supporting square tube.

[0020] The outer end face of the sliding rod has an arc-shaped clearance portion and a planar avoidance surface. The abutment surface can abut against the upper edge of the inner end of the supporting square tube after flipping, thereby achieving vertical limitation of the sliding rod. This allows the sliding rod to be positioned laterally and vertically after flipping, improving the stability of the positioning after flipping.

[0021] In the aforementioned desk, the lower end of the tabletop is connected to a drawer, and the desk has two legs distributed along the front-to-back direction. The upper ends of the two legs are connected by a connecting rod, which is always located on the outside of the drawer.

[0022] Since the desk has only one leg, when the leg extends or retracts vertically, you only need to pull the upper part of one leg to move it vertically. The connecting rod can then move the other leg synchronously. In order not to occupy aisle space, the connecting rod is directly set between the two legs. Therefore, while ensuring that the desk drawer has a large storage space, the drawer can be moved horizontally first to avoid the connecting rod and the leg, making the flipping more stable.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. The sliding rod can slide laterally and flip. When flipped, the end of the sliding rod can be inserted into the clearance slot. By setting the clearance slot, the sliding rod is allowed to be moved. It can be concluded that the length of the sliding rod inserted into the supporting square tube is small, so that the upper end of the supporting square tube is not open. There is only a rotation gap between the sliding rod and the upper wall of the supporting square tube, so that students' fingers will not get stuck between the sliding rod and the supporting square tube, thus improving safety. The shape of the supporting square tube can increase the support for the tabletop, making the connection between the tabletop and the supporting square tube more stable.

[0025] 2. By adopting a plug-in method, the pressure-bearing capacity and practical stability of the tabletop are improved. This allows the desk with a single leg to have a folding function without affecting the stability of the desk during normal use, and improves the safety performance of folding while realizing the folding function of the tabletop. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the desk in normal use in this embodiment.

[0027] Figure 2 This is a top view of the desk in normal use in this embodiment.

[0028] Figure 3 It is along Figure 2 Sectional view of AA.

[0029] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0030] Figure 5 This is a partial exploded view of the sliding rod and supporting square tube in the desk of this embodiment.

[0031] Figure 6 This is a schematic diagram of the supporting square tube structure in the desk of this embodiment.

[0032] Figure 7 This is a schematic diagram of the sliding rod in the desk of this embodiment.

[0033] Figure 8 This is a top view of the desk after it has been folded up in this embodiment.

[0034] Figure 9 yes Figure 8 A cross-sectional view along the middle BB.

[0035] Figure 10 yes Figure 9 A magnified view of a section at point B.

[0036] Figure 11 This is a structural diagram of the desk and chair in normal use in Embodiment 1.

[0037] Figure 12 This is a structural diagram of the desk and chair in the lying-down position in this embodiment.

[0038] Figure 13 This is a schematic diagram of the sliding rod in this embodiment 2.

[0039] Figure 14 This is a top view of the desk after it has been flipped over in this second embodiment.

[0040] Figure 15 yes Figure 14 A cross-sectional view along the center CC.

[0041] Figure 16 yes Figure 15 A magnified view of a section at point C.

[0042] In the diagram, 1 is the tabletop; 11 is the drawer; 2 is the table leg; 21 is the connecting rod; 3 is the supporting square tube; 31 is the clearance opening; 4 is the sliding rod; 41 is the strip hole; 42 is the plug; 43 is the positioning hole; 5 is the hinge shaft; 6 is the clearance gap; and 7 is the positioning component. Detailed Implementation

[0043] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0044] Example 1

[0045] like Figure 1As shown, this desk includes a tabletop 1 and at least one table leg 2. One side of the tabletop 1 is connected to the upper end of the table leg 2, and the other side is suspended in the air.

[0046] Specifically, such as Figure 1-12 As shown, the upper end of the table leg 2 has a square tube-shaped support tube 3. A hinge shaft 5 is fixedly connected to the inner end of the support tube 3. A clearance opening 31 is provided on the lower side wall of the inner end of the support tube 3. A positioning element 7 is connected to one side of the clearance opening 31 of the support tube 3. A sliding rod 4 is connected to the table board 1 and is arranged in a horizontal direction. A strip hole 41 is provided at the end of the sliding rod 4 and is hinged to the support tube 3 by inserting it into the strip hole 41 through the hinge shaft 5. The end of the sliding rod 4 can be inserted into the inner end of the support tube 3 in a horizontal direction and is positioned by inserting it into the support tube 3 through the positioning element 7.

[0047] During normal use, the outer end of the sliding rod 4 is inserted into the inner end of the supporting square tube 3, and the sliding rod 4 is positioned by the positioning piece 7 inserted into the supporting square tube 3. Since the tabletop 1 has only one side with table legs 2, when the tabletop 1 is set horizontally, the sliding rod needs to connect the tabletop 1 to the supporting square tube 3. Therefore, to ensure the stability of the connection between the tabletop 1 and the supporting square tube 3, the insertion and positioning method is adopted to achieve a stable connection between the tabletop 1 and the supporting square tube 3. When the tabletop 1 needs to be flipped, the sliding rod 4 drives the tabletop 1 to slide horizontally inward, hinged... The connecting shaft 5 can slide relative to the slot 41, and the sliding rod 4 can slide laterally and flip. When flipped, the end of the sliding rod 4 can be inserted into the clearance opening 31. Through the setting of the clearance opening 31, the sliding rod 4 is allowed to be moved. It can be concluded that the length of the sliding rod 4 inserted into the supporting square tube 3 is small, so that the upper wall of the supporting square tube 3 is not open. There is only a rotational gap between the sliding rod 4 and the upper wall of the supporting square tube 3, so that the student's fingers will not get stuck between the sliding rod 4 and the supporting square tube 3, thus improving safety. The shape of the supporting square tube 3 can increase the support for the table. The support of the support tube 3 makes the connection between the tabletop 1 and the support tube 3 more stable. Even if a student's hand is accidentally placed between the support tube 3 and the tabletop 1 during the flipping process, it will only be squeezed and can be quickly removed from the support tube 3 and the tabletop 1, improving the safety of using the tabletop 1. The sliding rod 4 can rotate downward around the hinge axis 5 and set the tabletop 1 vertically, so that the tabletop 1 is against the inside of the table leg 2. At this time, the chair part can be placed on the side of the desk without the table leg 2, and with the help of some aisle space, it is not necessary to make way for the desks in front and behind. With proper positioning, the desk can be used for reclining and sleeping, improving space utilization when the desk is in this position. At the same time, the combination of the strip hole 41 and the hinge shaft 5 avoids the problem of excessive travel of the sliding rod 4 when moving laterally. The strip hole 41 and the hinge shaft 5 provide support for the outer end of the sliding rod 4. The plug-in method improves the load-bearing capacity and practical stability of the tabletop 1, so that the desk with one side leg 2 can fold without affecting the stability of the desk when using the desk with one side leg 2 normally. It also improves the safety performance of folding while realizing the folding function of the tabletop 1.

[0048] like Figure 2-7 As shown, the end of the sliding rod 4 is square, the outer wall of the end of the sliding rod 4 is close to the inner wall of the supporting square tube 3, the sliding rod 4 is U-shaped, the sliding rod 4 is fixed around the table 1, the table leg 2 is provided with the above two supporting square tubes 3 along the front and back direction, and both ends of the sliding rod 4 can be inserted into the corresponding supporting square tubes 3.

[0049] like Figure 4 , Figure 5 and Figure 7 As shown, a plug 42 is connected to the sliding rod 4. The outer end face of the plug 42 is an arc-shaped clearance section and a flat abutment section. When the sliding rod is set vertically, the abutment section abuts against the inner upper wall of the supporting square tube 3.

[0050] like Figure 1 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, the lower end of the tabletop 1 is connected to a table drawer 11, and there are two table legs 2 distributed along the front-to-back direction. The upper ends of the two table legs 2 are connected by a connecting rod 21, which is always located on the outside of the table drawer 11.

[0051] like Figure 1 , Figure 4 , Figure 5 , Figure 9 and Figure 10 As shown, the positioning element 7 is a positioning bolt, which is threadedly connected to the supporting square tube 3. A positioning hole 43 is provided on the outer wall of the end of the sliding rod 4, and the positioning bolt is inserted into the positioning hole 43 to connect with the sliding rod 4. The positioning bolt 7 is set with its head facing downwards and can also be used as a hook.

[0052] Example 2

[0053] The content of this embodiment is basically the same as that of Embodiment 1, except that: Figure 13-16 As shown, the outer end face of the plug is set in an arc shape.

[0054] Example 3

[0055] The content of this embodiment is basically the same as that of embodiment one, except that: the positioning member 7 is a clamping screw, which is threadedly connected to the supporting square tube 3, and the end of the clamping screw can press the sliding rod 4 against the inner wall of the supporting square tube 3.

[0056] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A desk comprising a desk top (1) and at least one desk leg (2), the desk top (1) being connected on one side to the upper end of the desk leg (2) and being arranged free on the other side, characterized in that The upper end of the table leg (2) has a square tube-shaped support square tube (3), the inner end of the support square tube (3) is fixedly connected with a hinge shaft (5), the lower side wall of the inner end of the support square tube (3) is provided with a clearance (31), the support square tube (3) is connected with a positioning member (7) on one side of the clearance (31), the table plate (1) is connected with a transversely arranged sliding rod (4), the end of the sliding rod (4) is provided with a transversely arranged strip-shaped hole (41), the sliding rod (4) is connected with the support square tube (3) through the hinge shaft (5) inserted into the strip-shaped hole (41), and the end of the sliding rod (4) can be transversely inserted into the inner end of the support square tube (3) and positioned in the support square tube (3) through the positioning member (7).

2. The desk according to claim 1, characterized in that The end of the sliding rod (4) is square, and the outer side wall of the end of the sliding rod (4) abuts against the inner side wall of the support square tube (3).

3. A desk according to claim 1 or 2, c h a r a c t e r i s e d in that The sliding rod (4) is U-shaped, the sliding rod (4) is fixed around the table plate (1) in a circumferential direction, the two support square tubes (3) are arranged on the table leg (2) in a front-rear direction, and the two ends of the sliding rod (4) can be inserted into the corresponding support square tubes (3).

4. A desk according to claim 1 or 2, c h a r a c t e r i s e d in that The positioning member (7) is a positioning bolt, the positioning bolt is threadedly connected with the support square tube (3), the outer side wall of the end of the sliding rod (4) is provided with a positioning hole (43), and the positioning bolt is connected with the sliding rod (4) by being inserted into the positioning hole (43).

5. A desk according to claim 1 or 2, c h a r a c t e r i s e d in that The positioning member (7) is a compression screw, the compression screw is threadedly connected with the support square tube (3), and the end of the compression screw can compress the sliding rod (4) against the inner wall of the support square tube (3).

6. A desk according to claim 1 or 2, c h a r a c t e r i z e d in that A clearance (6) is formed between the lower wall of the table plate (1) and the sliding rod (4).

7. A desk according to claim 1 or 2, c h a r a c t e r i z e d in that The sliding rod (4) is connected with a plug (42), the outer end surface of the plug (42) is arc-shaped, and the outer end surface of the plug (42) can abut against the upper edge of the inner end of the support square tube (3).

8. A desk according to claim 1 or 2, c h a r a c t e r i s e d in that The lower end of the table plate (1) is connected with a table bucket (11), two table legs (2) are arranged in a front-rear direction, the upper ends of the two table legs (2) are connected through a connecting rod (21), and the connecting rod (21) is always located outside the table bucket (11).

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