Stool for students in class

Abstract

The utility model relates to the technical field of student stools, and discloses a student class bench, which comprises a connecting rod, a lifting mechanism arranged at the top of the connecting rod, a backrest mechanism arranged at the back of the lifting mechanism, an anti-skid pad arranged outside the connecting rod, and a driving assembly and a lifting assembly, the driving assembly is arranged at the top of the connecting rod, and the lifting assembly is arranged in the driving assembly. The first handle drives the worm, the worm drives the rotating block, the worm drives the worm gear, the worm gear drives the rotating shaft, the rotating shaft drives the first bevel gear, the first bevel gear drives the second bevel gear, the second bevel gear drives the connecting shaft, the connecting shaft drives the spur gear, the spur gear drives the toothed plate, the toothed plate drives the sliding column, and the sliding column drives the cushion. The first handle is rotated to drive the sliding column to ascend and descend through the spur gear, the worm is meshed with the worm gear, the self-locking function is achieved, ascending and descending are more flexible, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of student benches, in particular to a bench used by students in class. Background Art

[0002] Benches are a simple, inexpensive type of seating that are often used in classrooms in elementary, middle and secondary schools to make students more comfortable during class.

[0003] According to the description of a multifunctional bench for students disclosed on the patent website (authorization announcement number: CN 214548116U), "The utility model discloses a multifunctional bench for students, which relates to a bench, including a base, a bench panel, a support plate, a lifting rod mechanism, a bearing, a buffer pad, a cushion and a positioning bolt, wherein a lifting rod mechanism is provided on the base, a support plate is provided on the outer edge of the upper end of the lifting rod mechanism, a buffer pad is provided on the outer edge of the upper surface of the support plate, a bench panel is provided on the upper end of the lifting rod mechanism, the bench panel is connected to the lifting rod mechanism through a bearing, a gap is provided between the lower surface of the bench panel and the upper surface of the buffer pad, a cushion is provided on the upper surface of the bench panel, and a positioning bolt is provided at each angle of the support plate. The multifunctional bench in the utility model can not only adjust the height of the bench surface, but also tilt the bench surface within a certain angle range, so that the function of the multifunctional bench is no longer single, and it can meet the needs of people of different heights."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During the use of the utility model, since the device adjusts the height of the support plate by lifting the lifting rod, then makes the positioning screw hole of the lifting rod correspond to the positioning hole, and then makes the positioning screw pass through the corresponding positioning hole and the positioning screw hole, thereby fixing the position of the lifting rod, but each adjustment must make the two holes correspond to each other, otherwise the positioning screw will not be able to fix the position of the lifting rod, so it can only be adjusted to a specific height, and the adjustment is not flexible and convenient enough. Therefore, it is necessary to improve a bench for students to use in class to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a bench for students to use in class, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the utility model provides the following technical solution: a bench for students to use in class, comprising a connecting rod, a lifting mechanism is arranged on the top of the connecting rod, a backrest mechanism is arranged on the back of the lifting mechanism, and an anti-slip pad is arranged on the outside of the connecting rod.

[0008] The lifting mechanism comprises a driving assembly and a lifting assembly, wherein the driving assembly is arranged on the top of the connecting rod, and the lifting assembly is arranged inside the driving assembly.

[0009] Preferably, the driving assembly includes a slot column, the slot column is fixedly connected to the top of the connecting rod, the inner side of the slot column is fixedly connected to the slot rod, the interior of the slot rod is fixedly connected to a positioning block, the interior of the slot rod is rotatably connected to a rotating block, the interior of the rotating block is fixedly connected to a worm, the front side of the worm is fixedly connected to a first handle, the exterior of the worm is meshed with a worm wheel, the interior of the worm wheel is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the interior of the positioning block, and the left and right sides of the rotating shaft are fixedly connected to first bevel gears for rotating the spur gear.

[0010] Preferably, two rotating blocks are provided, and the slot rod is provided with through holes at corresponding positions of the two rotating blocks, and the two rotating blocks are symmetrically rotatably connected inside the through holes, and the worm is fixedly connected inside the two rotating blocks for limiting the worm.

[0011] Preferably, the lifting assembly includes a connecting shaft, which is rotatably connected to the inside of the slot rod, the outside of the connecting shaft is fixedly connected to a second bevel gear, the second bevel gear is meshed with the outside of the first bevel gear, the outside of the connecting shaft is fixedly connected to a spur gear, the outside of the spur gear is meshed with a tooth plate, the outside of the tooth plate is fixedly connected to a sliding column, the sliding column is slidably connected to the inside of the slot column, and the top of the sliding column is fixedly connected to a seat cushion for raising and lowering the height of the seat cushion.

[0012] Preferably, two connecting shafts are provided, and the two slotted columns are symmetrically rotatably connected inside the slotted rod to limit the spur gear and the second bevel gear.

[0013] Preferably, the backrest mechanism includes a limit rod, which is fixedly connected to the back of the seat cushion, the inner side of the limit rod is fixedly connected to a first connecting plate, the inner side of the first connecting plate is rotatably connected to a screw, the bottom of the screw is fixedly connected to a second handle, the outer side of the screw is threadedly connected to a threaded barrel, the outer side of the threaded barrel is fixedly connected to a second connecting plate, the left and right sides of the second connecting plate are fixedly connected to the limit barrel, the top of the limit barrel is fixedly connected to a back plate, and the back plate is fixedly connected to the top of the threaded barrel for adjusting the position of the back plate.

[0014] Preferably, a groove is formed on the limiting cylinder at a corresponding position of the limiting rod, and the limiting cylinder slides outside the limiting rod through the groove to limit the limiting cylinder.

[0015] Compared with the prior art, the utility model provides a bench for students to use in class, which has the following beneficial effects:

[0016] 1. The student uses a bench in class. During use, the worm is driven by a first handle, the worm drives the rotating block, the worm drives the worm wheel, the worm wheel drives the rotating shaft, the rotating shaft drives the first bevel gear, the first bevel gear drives the second bevel gear, the second bevel gear drives the connecting shaft, the connecting shaft drives the spur gear, the spur gear drives the tooth plate, the tooth plate drives the sliding column, and the sliding column drives the seat cushion, so the height of the seat cushion can be adjusted and raised or lowered. By turning the first handle, the sliding column can be driven by the spur gear to be raised or lowered, and the worm meshing with the worm wheel has a self-locking function, so the lifting is more flexible and easy to use.

[0017] 2. The student bench for class, during use, is rotated by the second handle inside the first connecting plate, the second handle drives the screw, the screw drives the threaded cylinder, the threaded cylinder drives the second connecting plate, the second connecting plate drives the limiting cylinder, the limiting cylinder slides on the outside of the limiting rod, the limiting cylinder drives the back plate to rise and fall, adjusts the position of the back plate, and adjusts it according to the user's body shape to make it more comfortable for students to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the local structure of the drive assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the lifting assembly of the utility model;

[0023] Figure 5 For this utility model Figure 4 The enlarged structural diagram at A in the middle;

[0024] Figure 6 This is a schematic diagram of the partial structure of the lifting component of the utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the backrest mechanism of the utility model.

[0026] In the figure: 1. connecting rod; 2. lifting mechanism; 21. driving assembly; 211. slot column; 212. slot rod; 213. positioning block; 214. rotating block; 215. worm; 216. first handle; 217. worm wheel; 218. rotating shaft; 219. first bevel gear; 22. lifting assembly; 221. connecting shaft; 222. second bevel gear; 223. spur gear; 224. tooth plate; 225. sliding column; 226. cushion; 3. backrest mechanism; 31. limiting rod; 32. first connecting plate; 33. screw rod; 34. second handle; 35. threaded cylinder; 36. second connecting plate; 37. limiting cylinder; 38. backrest; 4. anti-slip pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1:

[0030] See also Figure 1-6 The utility model provides a technical solution: a bench for students in class, comprising a connecting rod 1, a lifting mechanism 2 is arranged on the top of the connecting rod 1, a backrest mechanism 3 is arranged on the back of the lifting mechanism 2, and an anti-slip pad 4 is arranged on the outside of the connecting rod 1.

[0031] The lifting mechanism 2 includes a driving assembly 21 and a lifting assembly 22 . The driving assembly 21 is arranged on the top of the connecting rod 1 , and the lifting assembly 22 is arranged inside the driving assembly 21 .

[0032] Furthermore, the driving assembly 21 includes a slot column 211, which is fixedly connected to the top of the connecting rod 1, a slot rod 212 is fixedly connected to the inner side of the slot column 211, a positioning block 213 is fixedly connected to the inside of the slot rod 212, a rotating block 214 is rotatably connected to the inside of the slot rod 212, a worm 215 is fixedly connected to the inside of the rotating block 214, a first handle 216 is fixedly connected to the front of the worm 215, a worm wheel 217 is meshed with the outside of the worm 215, a rotating shaft 218 is fixedly connected to the inside of the worm wheel 217, the rotating shaft 218 is rotatably connected to the inside of the positioning block 213, and a first bevel gear 219 is fixedly connected to the left and right sides of the rotating shaft 218 for rotating the spur gear 223.

[0033] Furthermore, two rotating blocks 214 are provided, and the slot rod 212 has through holes at corresponding positions of the two rotating blocks 214 , and the two rotating blocks 214 are symmetrically rotatably connected inside the through holes, and the worm 215 is fixedly connected inside the two rotating blocks 214 to limit the worm 215 .

[0034] Furthermore, the lifting assembly 22 includes a connecting shaft 221, which is rotatably connected to the inside of the slot rod 212, and the outside of the connecting shaft 221 is fixedly connected to a second bevel gear 222, which is meshed with the outside of the first bevel gear 219, and the outside of the connecting shaft 221 is fixedly connected to a spur gear 223, and the outside of the spur gear 223 is meshed with a tooth plate 224, and the outside of the tooth plate 224 is fixedly connected to a sliding column 225, which is slidably connected to the inside of the slot column 211, and the top of the sliding column 225 is fixedly connected to a cushion 226 for raising and lowering the height of the cushion 226.

[0035] Furthermore, two connecting shafts 221 are provided, and the two slot columns 211 are symmetrically rotatably connected inside the slot rod 212 to limit the spur gear 223 and the second bevel gear 222 .

[0036] Embodiment 2:

[0037] See also Figure 7 , and combined with Example 1, it is further obtained that the backrest mechanism 3 includes a limit rod 31, the limit rod 31 is fixedly connected to the back of the seat cushion 226, the inner side of the limit rod 31 is fixedly connected to the first connecting plate 32, the inner side of the first connecting plate 32 is rotatably connected to the screw rod 33, the bottom of the screw rod 33 is fixedly connected to the second handle 34, the outer side of the screw rod 33 is threadedly connected to the threaded cylinder 35, the outer side of the threaded cylinder 35 is fixedly connected to the second connecting plate 36, the left and right sides of the second connecting plate 36 are fixedly connected to the limit cylinder 37, the top of the limit cylinder 37 is fixedly connected to the back plate 38, and the back plate 38 is fixedly connected to the top of the threaded cylinder 35 for adjusting the position of the back plate 38.

[0038] Furthermore, a groove is formed in the limiting cylinder 37 at a corresponding position of the limiting rod 31 , and the limiting cylinder 37 slides outside the limiting rod 31 through the groove, so as to limit the limiting cylinder 37 .

[0039] In actual operation, when the device is used, the first handle 216 is twisted to drive the worm 215, the worm 215 drives the rotating block 214, the rotating block 214 rotates inside the through hole of the slot rod 212, the worm 215 drives the worm wheel 217, the worm wheel 217 drives the rotating shaft 218, the rotating shaft 218 rotates inside the positioning block 213, the rotating shaft 218 drives the first bevel gear 219, the first bevel gear 219 drives the second bevel gear 222, the second bevel gear 222 drives the connecting shaft 221, the connecting shaft 221 rotates inside the slot rod 212, the connecting shaft 221 drives the spur gear 223, the spur gear 223 drives the connecting shaft 221 ... The gear 223 drives the tooth plate 224, the tooth plate 224 drives the sliding column 225, the sliding column 225 slides inside the slot column 211, the sliding column 225 drives the cushion 226, and the height of the cushion 226 can be adjusted and raised, the second handle 34 is twisted, the second handle 34 rotates inside the first connecting plate 32, the second handle 34 drives the screw rod 33, the screw rod 33 drives the threaded cylinder 35, the threaded cylinder 35 drives the second connecting plate 36, the second connecting plate 36 drives the limiting cylinder 37, the limiting cylinder 37 slides outside the limiting rod 31, the limiting cylinder 37 drives the support plate 38 to rise and fall, and the position of the support plate 38 is adjusted.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A bench for students to use in class, comprising a connecting rod (1), characterized in that: A lifting mechanism (2) is arranged on the top of the connecting rod (1), a backrest mechanism (3) is arranged on the back of the lifting mechanism (2), and an anti-slip pad (4) is arranged on the outside of the connecting rod (1); The lifting mechanism (2) comprises a driving component (21) and a lifting component (22), wherein the driving component (21) is arranged on the top of the connecting rod (1), and the lifting component (22) is arranged inside the driving component (21); The driving assembly (21) comprises a slot column (211), wherein the slot column (211) is fixedly connected to the top of the connecting rod (1), a slot rod (212) is fixedly connected to the inner side of the slot column (211), a positioning block (213) is fixedly connected to the interior of the slot rod (212), a rotating block (214) is rotatably connected to the interior of the slot rod (212), a worm (215) is fixedly connected to the interior of the rotating block (214), a first handle (216) is fixedly connected to the front side of the worm (215), a worm wheel (217) is meshed with the exterior of the worm (215), a rotating shaft (218) is fixedly connected to the interior of the worm wheel (217), the rotating shaft (218) is rotatably connected to the interior of the positioning block (213), and a first bevel gear (219) is fixedly connected to the left and right sides of the rotating shaft (218).

2. A bench for students in class according to claim 1, characterized in that: Two rotating blocks (214) are provided, and the slot rod (212) is provided with through holes at corresponding positions of the two rotating blocks (214), and the two rotating blocks (214) are symmetrically rotatably connected inside the through holes, and the worm (215) is fixedly connected inside the two rotating blocks (214).

3. A bench for students in class according to claim 1, characterized in that: The lifting assembly (22) comprises a connecting shaft (221), the connecting shaft (221) being rotatably connected to the inside of the slot rod (212), the outside of the connecting shaft (221) being fixedly connected to a second bevel gear (222), the second bevel gear (222) being meshed with the outside of the first bevel gear (219), the outside of the connecting shaft (221) being fixedly connected to a spur gear (223), the outside of the spur gear (223) being meshed with a toothed plate (224), the outside of the toothed plate (224) being fixedly connected to a sliding column (225), the sliding column (225) being slidably connected to the inside of the slot column (211), and the top of the sliding column (225) being fixedly connected to a seat cushion (226).

4. A bench for students in class according to claim 3, characterized in that: Two connecting shafts (221) are provided, and the two slot columns (211) are symmetrically rotationally connected inside the slot rod (212).

5. A bench for students in class according to claim 3, characterized in that: The backrest mechanism (3) comprises a limit rod (31), the limit rod (31) being fixedly connected to the back of the seat cushion (226), the inner side of the limit rod (31) being fixedly connected to a first connecting plate (32), the interior of the first connecting plate (32) being rotatably connected to a screw rod (33), the bottom of the screw rod (33) being fixedly connected to a second handle (34), the outer surface of the screw rod (33) being threadedly connected to a threaded cylinder (35), the outer surface of the threaded cylinder (35) being fixedly connected to a second connecting plate (36), the left and right sides of the second connecting plate (36) being fixedly connected to a limit cylinder (37), the top of the limit cylinder (37) being fixedly connected to a back plate (38), and the back plate (38) being fixedly connected to the top of the threaded cylinder (35).

6. A bench for students in class according to claim 5, characterized in that: The limiting cylinder (37) is provided with a groove at a corresponding position of the limiting rod (31), and the limiting cylinder (37) slides outside the limiting rod (31) through the groove.

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