CN117179450A - Desk - Google Patents

Abstract

The invention provides a desk, and belongs to the technical field of teaching facilities. The desk solves the problem of how to consider the convenience and stability of the use of the existing desk. The desk comprises a desk plate, cantilever beams, left desk legs and right desk legs, wherein the cantilever beams are distributed front and back, the two cantilever beams are all arranged transversely, the desk plate is paved on the two cantilever beams, a desk leg which is vertically arranged is connected between the left ends of the two cantilever beam arms and the left desk legs, the right ends of the two cantilever beams are arranged in a suspending mode, the right desk legs are arranged below the right ends of the two cantilever beams, the left desk legs and the right desk legs are all in strip shapes and are arranged along the front and back directions, the desk further comprises a supporting rod, the supporting rod is parallel to the cantilever beams, the left ends of the supporting rod are fixed on the desk legs and higher than the left desk legs, and the right ends of the supporting rod are fixed on the right desk legs. The desk can be used conveniently and stably.

Description

a desk

Technical field

The invention belongs to the technical field of teaching facilities and relates to a desk.

Background technique

Desks and chairs are used together, which are relatively common teaching facilities, and their design usually needs to meet the learning needs of students. There are various types of desks, including lifting desks, solid wood desks, plastic desks, etc., but they all include table boards, desk buckets, support frames and table legs. The two table legs are fixed vertically on both sides of the support frame. The bucket is fixed on the support frame and is used to store school bags, books and other utensils. The table board is laid horizontally on the support frame and covers the table bucket. The overall structure of this type of desk is relatively stable, but due to classroom space constraints, the distance between adjacent desks at the front and rear is limited. The seat movement is placed between the two desks, and its movement is relatively cramped. In particular, in order to meet the needs of students for naps, some seats are designed to be expandable, and the length after unfolding is larger, requiring higher space.

For example, the patent document (Application No.: 202222019883.3) discloses a dual-purpose desk and chair for taking a nap on a desk and chair, which includes a desk frame, and a desk is installed with bolts on the upper part of the desk stand; the left side of the first bottom support plate A second bottom support plate is provided on the side; a positioning bracket structure is installed on the upper part of the second bottom support plate; a movable seat frame structure is installed on the upper part of the positioning bracket structure; the right side of the movable seat frame structure An adjustable limit seat frame structure is installed on the upper part; a movable backrest is installed on the left side of the movable seat frame structure, and the movable backrest is axially connected to the second axis plate. At the same time, the movable backrest is in contact with the limit bracket. When in use The movable backrest can be moved forward and backward in the second axis board, that is, it can be used for naps by unfolding the movable backrest. However, after unfolding, the movable backrest obviously occupies a larger rear space, which means that it will interfere with the rear desks during actual use. , and the first bottom support plate and the second bottom support plate are arranged adjacent to each other, making it difficult to move the seat forward to avoid the rear desks, unless the size of the first bottom support plate is reduced to avoid the second bottom support plate , but this will cause the desk to be unstable, causing it to tip over when the force is unbalanced, and the stability will become worse.

Contents of the invention

The purpose of the present invention is to solve the problem of how to balance the convenience of use and stability of the existing desks by proposing a desk in view of the above-mentioned problems in the existing technology.

The object of the present invention can be achieved through the following technical solutions: a desk, including a table board, a cantilever beam, a left table leg and a right table leg. It is characterized in that there are two cantilever beams and are distributed front and back, and the two cantilever beams are The beams are arranged transversely, and the table board is laid on two cantilever beams. There are vertical table legs connected between the left ends of the two cantilever arms and the left table legs. The right ends of the two cantilever beams are suspended, and the right The table legs are arranged below the right ends of the two cantilever beams. The left and right table legs are in the shape of long strips and are arranged in the front and rear direction. The desk also includes a support rod, which is parallel to the above-mentioned cantilever beam. And the left end of the support rod is fixed on the table leg and is higher than the left table leg, and the right end is fixed on the right table leg.

This desk has only one leg, and the right end of the cantilever beam is suspended. Of course, according to the layout needs, the desk leg can also be fixed on the right leg so that the left end is suspended and there is no table leg to support it. When using, the desk The suspended end faces the aisle, so that there are no blocking obstacles such as table legs between the space under the table and the aisle space. Students can move their legs in and out from the sides under the table when sitting down, making sitting and standing more convenient. . The seat can also be moved in and out from the side under the table. The right end of the support rod is bent downward and fixed on the right table leg. This also creates a certain space under the support rod for students to put their feet in. Especially for seats that can be unfolded into recliners for nap use, the seats have a certain length when unfolded into recliners. When the same row of seats are unfolded in the front and rear directions at the same time, they will interfere with each other due to space problems. However, due to this desk One side is suspended in the air and combined with the space under the support rod, so that the chair legs can pass through the space under the support rod. At this time, the front end of the unfolded recliner can be tilted from the suspended side of the desk to the walkway, making full use of the width of the walkway and making it more convenient to use. convenient. In order to improve the stability of the right end of the cantilever beam, this desk is equipped with two cantilever beams, so that the table board has four fulcrums distributed in a rectangular shape, two horizontal cantilever beams and left and right table legs set front and back. Correspondence is formed to make the table more stable. The right table leg is located below the suspended right end of the cantilever beam. The two ends of the support rod are respectively fixed between the table leg and the right table leg. The support rod is set parallel to the cantilever beam, so the pressure on the suspended right end of the cantilever beam can pass through the table leg. It is passed to the right end of the support rod, that is, it is passed to the right table leg for support, so that a fulcrum is generated under the suspended right end of the cantilever beam to prevent the desk from tipping over. The left and right table legs have four fulcrums, making the desk more stable. Furthermore, since the right end of the cantilever beam is suspended in the air, the table leg will tend to tilt to the right after being stressed. Therefore, the left end of the support rod is higher than the table leg, making the connection point between the table leg and the left table leg, the support rod and the right table leg The connection points and the connection points between the support rod and the table legs form a triangular support, that is, the support rod can support the table legs to prevent them from tilting to the right and improve the stability of the desk.

In the above-mentioned desk, the left table leg and the right table leg are arranged in parallel, the support rod is located in the middle of the length direction of the left table leg and the right table leg, and the two cantilever beams are vertical relative to the support rod. Plane symmetrical distribution. While providing stable support, the parallel left and right table legs are symmetrical from left to right. The support rod is located in the middle of the length direction of the left and right table legs, that is, symmetrical from front to back. Therefore, it can be made according to the distribution of the aisles in the classroom. The suspended end of the desk can face either left or right, while the position and layout of the left table leg, right table leg and support rod remain unchanged, making it more practical.

In the above-mentioned desk, the support rod is L-shaped and includes a horizontal section and a vertical section bent downward. The horizontal section is arranged horizontally along the transverse direction, and the left end of the horizontal section is fixed on the table leg. The lower end of the vertical section is fixed on the right table leg. The support rod can be formed by bending an integrated structure, or it can be welded to form an L shape. The L-shaped support rod has greater stiffness and structural strength. The support rod is L-shaped and actually plays the role of a triangular support. At the same time The vertical section is arranged so that there is space under the horizontal section, and the chair legs of the seat can pass under the horizontal section. Especially when the front end of the unfolded seat is tilted from the suspended side of the desk to the aisle, a chair leg can pass from the suspended side of the desk to the aisle. Pass under the horizontal section and extend the other chair leg into the aisle, making full use of the width of the aisle and making it more convenient to use.

In the above-mentioned desk, the horizontal section and the vertical section form an arc-shaped transition, and the lower edge of the horizontal section is higher than the upper sides of the left and right legs. The arc-shaped transition between the horizontal section and the vertical section reduces sharp angular protrusions and is safer. The height of the chair legs is usually close to the height of the left and right table legs, so the height of the lower edge of the horizontal section is higher than that of the left The height of the table legs and the upper side of the right table leg ensures that the chair legs can pass through.

In the above-mentioned desk, the table legs include two telescopic rods arranged vertically, and the two telescopic rods are distributed front and back. The lower ends of the two telescopic rods are fixed on the left table leg, and the upper ends are respectively connected with the two cantilever beams. The left ends are firmly connected. Two telescopic rods arranged front and back respectively correspond to two cantilever beams, making the support more stable.

In the above-mentioned desk, a reinforcing vertical rod arranged in the front and rear direction is fixed between the two telescopic rods, and a reinforcing vertical rod arranged in the vertical direction is fixed between the middle part of the reinforcing vertical rod and the left table leg, so The left end of the support rod is fixed on the reinforced vertical rod. Both the reinforced longitudinal rods and the reinforced vertical rods play a strengthening role. The reinforced longitudinal rods support the two telescopic rods to ensure the structural strength of the table legs. The reinforced vertical rods are used to connect the support rods. The support rods support the table legs through the reinforced vertical rods. Provide support and improve stability.

In the above-mentioned desk, the left ends of the two cantilever beams are perpendicular to the telescopic rod and lower than the upper end of the telescopic rod, and the right ends are bent upward to form a connecting part. The upper ends of the two telescopic rods and the two connecting parts are Long strip-shaped mounting plates are fixed horizontally on the upper ends, and the table board is fixed on the two mounting plates. A concave space is formed above the cantilever beam, and the table bucket can be embedded in the space. The connecting part of the cantilever beam and the upper end of the telescopic rod are respectively located on the lateral sides of the table bucket, which improves the overall structural strength.

In the above-mentioned desk, the vertical width of the cantilever beam located at the rear side is smaller than the vertical width of the cantilever beam located at the front side, and the upper edges of the two cantilever beams are flush. That is, the lower edge of the cantilever beam on the rear side is higher than the lower edge of the cantilever beam on the front side, so that there is more space under the cantilever beam on the rear side to avoid interference with the students' legs.

In the above-mentioned desk, a desk bucket is also fixed on the lower side of the table board. The desk bucket is located above the two cantilever beams, and the desk bucket has a rearward opening. The horizontal sides of the table are fixed and supported, making it more stable.

In the above-mentioned desk, the telescopic rods include a tube body and a rod body. The lower end of the tube body is fixed on the left table leg. The upper end of the rod body is fixedly connected to the cantilever beam. The lower end of the rod body is slidably inserted into the desk. Connected to the upper end of the pipe body, a number of positioning holes are vertically opened on the side wall of the pipe body. The rod body is provided with a telescopic elastic pin, and the elastic pin can be inserted and positioned in the positioning hole. Through the telescopic setting of the rod body and the tube body, the height of the desk can be adjusted, which is suitable for students of different heights and has greater applicability.

Compared with existing technology, this desk has the following advantages:

1. Since the right end of the cantilever beam of the desk is suspended, students can move their legs in and out from the sides under the desk when sitting down, making sitting and standing more convenient. When the seat is unfolded into a recliner, the front end of the unfolded recliner can be tilted from the suspended side of the desk to the aisle, making full use of the width of the aisle and making it more convenient to use.

2. Since the desk is equipped with two cantilever beams, the table board has four fulcrums distributed in a rectangular shape. The two horizontal cantilever beams correspond to the left and right table legs, making the table board more stable. The right table The feet are located under the right end of the cantilever beam. When the suspended end of the table board is stressed, the force can be transmitted to the right table leg through the two cantilever beams, table legs and support rods for support, preventing the desk from tipping over.

3. Since the end of the support rod connecting the table leg is higher than the left table leg, the support rod can support the table leg to prevent it from tilting to the right and improve the stability of the desk.

4. Since the support rod is L-shaped, there is space under the horizontal section, and the legs of the seat can pass under the horizontal section. Especially when the front end of the unfolded seat is tilted from the suspended side of the desk to the aisle, a chair The feet can pass under the horizontal section, and the other chair leg extends into the aisle, making full use of the width of the aisle and making it more convenient to use.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the desk.

Figure 2 is the formal structural diagram of the desk.

Figure 3 is a schematic three-dimensional structural diagram of the desk from a second perspective.

Figure 4 is a schematic three-dimensional structural diagram of the desk without the desk plate and desk bucket installed.

Figure 5 is a schematic three-dimensional structural diagram of the desk from a third perspective.

Figure 6 is a schematic three-dimensional structural diagram of the desk and the chair when used together.

Figure 7 is a structural top view of the desk and the chair when used together.

Figure 8 is a schematic three-dimensional structural diagram of the desk in the second embodiment when the desk plate and desk bucket are not installed.

In the figure, 1. Table plate; 2. Cantilever beam; 21. Connection part; 22. Mounting plate; 23. Connecting rod; 3. Table legs; 31. Telescopic rod; 311. Pipe body; 312. Rod body; 313. Positioning hole; 314, elastic pin; 32, reinforced longitudinal rod; 33, reinforced vertical rod; 4a, left table leg; 4b, right table leg; 5, support rod; 51, horizontal section; 52, vertical section; 6, table Bucket; 61, fixed flange; 62, opening; 7, seat; 71, chair legs.

Detailed ways

The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example 1:

As shown in Figures 1 and 2, a desk includes a table board 1, a table bucket 6, two cantilever beams 2, table legs 3, a support rod 5, a left table leg 4a and a right table leg 4b. The beams 2 are distributed front and back, and each cantilever beam 2 is arranged horizontally. The table 1 is rectangular and laid horizontally on the two cantilever beams 2. The table bucket 6 is fixed on the lower side of the table 1 and is located above the cantilever beam 2. The table bucket 6 has a rearward opening 62 . The table leg 3 is set vertically, and the lower end of the table leg 3 is fixed on the left table leg 4a, the left ends of the two cantilever beams 2 are fixed on the upper ends of the table leg 3, the right ends of the two cantilever beams 2 are set in the air, and the right table leg 4b is set Below the right ends of the two cantilever beams 2, the left table leg 4a and the right table leg 4b are both elongated and arranged in the front and rear directions, and the left table leg 4a and the right table leg 4b are parallel. The left end of the support rod 5 is fixed on The table leg 3 is on and higher than the left table leg 4a, and the right end is fixed on the right table leg 4b.

Specifically, as shown in FIGS. 3 and 4 , the table leg 3 includes two telescopic rods 31 arranged vertically, and the two telescopic rods 31 are distributed in the front-to-back direction. The lengths of the left table leg 4a and the right table leg 4b are both greater than The width of the table 1 along the front and rear direction, the distance between the outer edges of the left table leg 4a and the right table leg 4b is greater than the width of the table 1 along the transverse direction, and the upper ends of the two telescopic rods 31 are respectively fixed to the left ends of the two cantilever beams 2 Even, the lower ends of the two telescopic rods 31 are fixed on the left table leg 4a. A reinforcing vertical rod 32 is fixed between the two telescopic rods 31. The reinforcing vertical rod 32 is arranged in the front and rear direction. A reinforcing vertical rod 33 is fixed between the middle part of the reinforcing longitudinal rod 32 and the left table leg 4a below. The reinforcing vertical rod 33 It is arranged vertically and located in the middle of the length direction of the left table leg 4a. The support rod 5 is L-shaped and includes a horizontal section 51 and a vertical section 52. The horizontal section 51 and the vertical section 52 can be bent or connected by welding. The horizontal section 51 is arranged horizontally along the transverse direction, and the horizontal section 51 The left end of the horizontal section 51 is fixed on the reinforced vertical rod 33, the lower end of the vertical section 52 is fixed on the middle of the right table leg 4b, the horizontal section 51 and the vertical section 52 are in an arc transition, and the lower edge of the horizontal section 51 is higher than the left table leg 4a and 4b. The upper side of the right table leg 4b.

As shown in Figure 5, the telescopic rods 31 each include a tube body 311 and a rod body 312. The lower ends of the two tube bodies 311 are fixed on the left table leg 4a. The lower ends of the two rod bodies 312 are slidably inserted into the upper ends of the two tube bodies 311. , a number of positioning holes 313 are opened vertically on the side wall of the tube body 311, and a telescopic elastic pin 314 is provided on the rod body 312. A spring acting on the elastic pin 314 is provided in the rod body 312, so that the elastic pin 314 is in contact with the positioning hole. When 313 are opposite to each other, the elastic pin 314 can be inserted and positioned in the positioning hole 313. When the height of the table 1 needs to be adjusted, just press the elastic pin 314. The vertical width of the cantilever beam 2 located at the rear side is smaller than the vertical width of the cantilever beam 2 located at the front side, that is, the lower edge of the cantilever beam 2 located at the rear side is higher than the lower edge of the cantilever beam 2 located at the front side. The upper edges of the beams 2 are flush, the left ends of the two cantilever beams 2 are vertically fixed to the upper ends of the two rod bodies 312, and the right ends are bent upward to form connecting parts 21. The upper ends of the two rod bodies 312 and the upper ends of the two connecting parts 21 are fixed horizontally. There are elongated mounting plates 22, and both mounting plates 22 are arranged in parallel along the front and rear directions. Both transverse edges of the table bucket 6 are bent outward to form fixed flanges 61. The two fixed flanges 61 are respectively hung on the two mounting plates 22. The table plate 1 is laid flat above the table bucket 6, and the lower side of the table plate 1 is attached to Leaning against the upper side of the fixed flange 61, the mounting plate 22, the fixed flange 61 and the table board 1 are fixed by screws.

As shown in Figure 6 and Figure 7, this desk can be used with a foldable seat 7. When the seat 7 is unfolded into a recliner, it has a certain length. Since the horizontal end of the desk is suspended, there are no table legs 3 For support, the suspended end of the desk faces the aisle, so that there are no blocking obstacles such as table legs 3 between the space under the table board 1 and the aisle space. The front end of the unfolded seat 7 can tilt from the suspended side of the desk to the aisle, so that One chair leg 71 passes under the support rod 5, and the other chair leg 71 extends into the aisle, making full use of the width of the aisle and making it more convenient to use.

Example 2:

The structure of the desk is basically the same as that in Embodiment 1. The difference is that as shown in Figure 8, the table leg 3 includes a telescopic rod 31. The specific structure of the telescopic rod 31 is the same as that in Embodiment 1. The lower end of the telescopic rod 31 is fixed on A connecting rod 23 is horizontally fixed at the upper end of the middle part of the left table leg 4a. The connecting rod 23 is arranged in the front and rear direction. The left ends of the two cantilever beams 2 are fixed on the connecting rod 23.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or additions to the described specific embodiments or substitute them in similar ways, but this will not deviate from the spirit of the present invention or exceed the definition of the appended claims. range.

Although this article frequently uses terms such as table plate 1, cantilever beam 2, and connecting portion 21, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims (10)

1. A desk, including a table board (1), a cantilever beam (2), a left table leg (4a) and a right table leg (4b), characterized in that there are two cantilever beams (2) arranged front and back. Distributed, two cantilever beams (2) are arranged transversely, the table board (1) is laid on the two cantilever beams (2), between the left ends of the two cantilever beam arms (2) and the left table leg (4a) It is connected with vertically arranged table legs (3), the right ends of the two cantilever beams (2) are suspended in the air, the right table leg (4b) is set below the right ends of the two cantilever beams (2), and the left table leg (4a) and the right leg (4b) are in a long strip shape and are arranged in the front-to-back direction. The desk also includes a support rod (5), which is parallel to the above-mentioned cantilever beam (2), and The left end of the support rod (5) is fixed on the table leg (3) and is higher than the left table leg (4a), and the right end is fixed on the right table leg (4b). 2. The desk according to claim 1, characterized in that the left table leg (4a) and the right table leg (4b) are arranged in parallel, and the support rod (5) is located between the left table leg (4a) and the right table leg (4b). In the middle of the length direction of the right table leg (4b), two cantilever beams (2) are symmetrically distributed relative to the vertical plane where the support rod (5) is located. 3. The desk according to claim 2, characterized in that the support rod (5) is L-shaped and includes a horizontal section (51) and a vertical section (52) formed by bending downward, and the horizontal section (51) is arranged horizontally along the transverse direction, and the left end of the horizontal section (51) is fixed on the table leg (3), and the lower end of the vertical section (52) is fixed on the right table leg (4b). 4. The desk according to claim 3, characterized in that the horizontal section (51) and the vertical section (52) form an arc-shaped transition, and the lower edge of the horizontal section (51) is higher than the left table leg ( 4a) and the upper side of the right table leg (4b). 5. The desk according to any one of claims 1 to 4, characterized in that the table legs (3) include two telescopic rods (31) arranged vertically, and the two telescopic rods (31) are located front and rear. Distributed, the lower ends of the two telescopic rods (31) are fixed on the left table leg (4a), and the upper ends are respectively connected with the left ends of the two cantilever beams (2). 6. The desk according to claim 5, characterized in that a reinforcing longitudinal rod (32) arranged along the front and rear direction is fixed between the two telescopic rods (31), and the middle part of the reinforcing longitudinal rod (32) A reinforcing vertical rod (33) arranged vertically is fixed between the support rod (5) and the left table leg (4a), and the left end of the support rod (5) is fixed on the reinforcing vertical rod (33). 7. The desk according to claim 5, characterized in that the left ends of the two cantilever beams (2) are perpendicular to the telescopic rod (31) and lower than the upper end of the telescopic rod (31), and the right ends are bent upward. A connecting part (21) is formed, and a strip-shaped mounting plate (22) is fixed horizontally on the upper ends of the two telescopic rods (31) and the upper ends of the two connecting parts (21), and the table plate (1) is fixed On the two mounting plates (22). 8. The desk according to claim 7, characterized in that the vertical width of the cantilever beam (2) located at the rear side is smaller than the vertical width of the cantilever beam (2) located at the front side, and the two cantilever beams The upper edge of (2) is flush. 9. The desk according to claim 7, characterized in that a table bucket (6) is fixed on the lower side of the table board (1), and the table bucket (6) is located above the two cantilever beams (2). , and the table bucket (6) has a rearward opening (62). 10. The desk according to claim 5, characterized in that the telescopic rods (31) each include a tube body (311) and a rod body (312), and the lower end of the tube body (311) is fixed on the left table leg. (4a), the upper end of the rod body (312) is fixedly connected to the cantilever beam (2), and the lower end of the rod body (312) is slidably inserted into the upper end of the pipe body (311). The pipe body (311) ) There are a number of positioning holes (313) vertically opened on the side wall. The rod (312) is provided with a telescopic elastic pin (314), and the elastic pin (314) can be plugged and positioned in the positioning hole (313). Inside.