Portable folding chair for teaching

Abstract

The utility model provides a portable folding chair for teaching, which comprises a seat plate, a storage component is fixedly mounted in the seat plate, four support rods are slidably connected in two sliding chutes, first hinge shafts are rotatably connected above the four support rods, and a second hinge shaft is rotatably connected above the first hinge shafts. A writing board is fixedly connected to the upper portions of the four first hinge shafts. Specifically, when a user needs to carry out teaching writing, a crank in a storage assembly can be rotated, the crank drives a screw rod to rotate so as to drive a connecting rod fixedly connected between two sliding blocks to move front and back, a writing assembly is fixedly installed on the outer wall of the connecting rod, and after the writing assembly is sent out through the storage assembly, the writing assembly can move back and forth. A bearing plate in the writing assembly is pulled, a first hinge shaft at the bottom of the bearing plate is clamped with a sliding groove formed in the upper portion of a supporting rod and a connecting plate, the four supporting rods are in a splayed shape so as to support the bearing plate on the upper portion, and great convenience is brought to writing display of an operator.

Description

Technical Field

[0001] The utility model relates to the technical field of portable folding chairs, in particular to a portable folding chair for teaching. Background Art

[0002] Folding chairs for teaching are often used in various training institutions and schools at all levels, making it convenient for teachers to use them in various types of teaching.

[0003] The existing portable folding chairs for teaching have weak functionality in work use. When the user needs to write during teaching, there is no place to support the traditional folding chairs for teaching, which makes it inconvenient to write and display. Utility Model Content

[0004] The utility model aims at solving the deficiencies of the prior art and provides a portable folding chair for teaching.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A portable folding chair for teaching, comprising a seat plate, wherein a storage assembly is fixedly installed inside the seat plate, the storage assembly comprises a screw rod rotatably connected to the inside of the seat plate, and the number of the screw rods is two, the outer walls of the two screw rods are threadedly connected to sliders, the outer walls of the two sliders are fixedly connected to a connecting rod on opposite sides, one end of the two screw rods is fixedly connected to a crank, the outer wall of the connecting rod is fixedly connected to a writing assembly, the writing assembly comprises a connecting plate fixedly connected to the outer wall of the connecting rod, the outer wall of the connecting plate is fixedly connected to a receiving plate, a sliding groove is opened above the receiving plate, and the number of the sliding grooves is two, the insides of the two sliding grooves are slidably connected to support rods, and the number of the support rods is four, the four support rods are rotatably connected to a first hinge shaft above, and the writing board is fixedly connected above the four first hinge shafts.

[0007] Preferably, a limiting block is fixedly connected to the top of the seat plate, and the number of the limiting blocks is two, and a rotating rod is rotatably connected inside the two limiting blocks.

[0008] Preferably, a backrest is fixedly connected to the outer wall of the rotating rod, an adjustment knob is rotatably connected to one end of the rotating rod, and a support assembly is fixedly installed on the outer wall of the seat plate, and the number of the support assemblies is four.

[0009] Preferably, the support assembly includes a connecting seat fixedly connected to the outer wall of the seat plate, the outer wall of the connecting seat is fixedly connected to a second hinge shaft, the inner part of the second hinge shaft is rotatably connected to a support leg, and the bottom of the support leg is fixedly connected to a pad.

[0010] The beneficial effects of the utility model are as follows: specifically, when the user needs to teach writing, the crank in the storage assembly can be rotated, and the crank drives the screw to rotate, thereby driving the connecting rod fixedly connected between the two sliders to move forward and backward, and the outer wall of the connecting rod is fixedly installed with a writing assembly. After the writing assembly is sent out through the storage assembly, the receiving plate in the writing assembly is pulled, and the first hinge shaft at the bottom is engaged with the support rod and the sliding groove arranged above the connecting plate, so that the four support rods are in an eight-shaped shape to support the receiving plate above, which greatly facilitates the operator's writing display. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of a portable folding chair for teaching according to an embodiment of the utility model;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of a seat plate of a portable folding chair for teaching according to an embodiment of the utility model;

[0013] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0014] In the figure: 1. seat plate; 2. storage assembly; 21. screw; 22. slider; 23. connecting rod; 24. crank; 3. writing assembly; 31. connecting plate; 32. receiving plate; 33. slide groove; 34. support rod; 35. first hinge shaft; 36. writing board; 4. limit block; 5. rotating rod; 6. backrest; 7. adjustment knob; 8. support assembly; 81. connecting seat; 82. second hinge shaft; 83. support leg; 84. pad. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0016] Example

[0017] like Figure 1-Figure 3As shown, in the present embodiment, a portable folding chair for teaching comprises a seat plate 1, a storage assembly 2 is fixedly installed inside the seat plate 1, the storage assembly 2 comprises a screw rod 21 rotatably connected to the inside of the seat plate 1, and the number of the screw rods 21 is two, the outer walls of the two screw rods 21 are threadedly connected to sliders 22, the outer walls of the two sliders 22 are fixedly connected to a connecting rod 23 on the opposite side, one end of the two screw rods 21 is fixedly connected to a crank 24, the outer wall of the connecting rod 23 is fixedly connected to a writing assembly 3, the writing assembly 3 comprises a connecting plate 31 fixedly connected to the outer wall of the connecting rod 23, the outer wall of the connecting plate 31 is fixedly connected to a receiving plate 32, a slide groove 33 is opened above the receiving plate 32, and the number of the slide grooves 33 is two, the two slide grooves 33 are slidably connected to support rods 34, and the number of the support rods 34 is four, the upper parts of the four support rods 34 are rotatably connected to a first hinge shaft 35, and the upper parts of the four first hinge shafts 35 are fixedly connected to a writing board 36.

[0018] Specifically, when the user needs to teach writing, the user can rotate the crank 24 in the storage component 2, and the crank 24 drives the screw 21 to rotate, thereby driving the connecting rod 23 fixedly connected between the two sliders 22 to move forward and backward, and the outer wall of the connecting rod 23 is fixedly installed with the writing component 3. After the writing component 3 is sent out through the storage component 2, the receiving plate 32 in the writing component 3 is pulled, and the first hinge shaft 35 at the bottom and the support rod 34 are engaged with the slide groove 33 set above the connecting plate 31, so that the four support rods 34 are in an eight-shaped shape to support the upper receiving plate 32, which greatly facilitates the operator's writing display.

[0019] like Figure 1 As shown, in some embodiments, a limit block 4 is fixedly connected to the top of the seat plate 1, and the number of the limit blocks 4 is two, and the two limit blocks 4 are internally rotatably connected to a rotating rod 5. The two limit blocks 4 greatly facilitate the limitation and adjustment of the backrest 6 in the device.

[0020] like Figure 1 and Figure 2 As shown, in some embodiments, the outer wall of the rotating rod 5 is fixedly connected to the backrest 6, one end of the rotating rod 5 is rotatably connected to the adjusting knob 7, the outer wall of the seat plate 1 is fixedly installed with a supporting assembly 8, and the number of the supporting assemblies 8 is four, and the setting of the adjusting knob 7 can effectively adjust the placement angle of the backrest 6, thereby increasing the comfort of the device and facilitating the folding and storage of the device.

[0021] like Figure 1 and Figure 2As shown, in some embodiments, the support assembly 8 includes a connecting seat 81 fixedly connected to the outer wall of the seat plate 1, the outer wall of the connecting seat 81 is fixedly connected to a second hinge shaft 82, the internal rotation of the second hinge shaft 82 is connected to a support leg 83, the bottom of the support leg 83 is fixedly connected to a pad 84, the second hinge shaft 82 is a limited hinge shaft, and when the second hinge shaft 82 is in use, it will be fixed when it is rotated to a certain support angle.

[0022] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A portable folding chair for teaching, comprising a seat plate (1), characterized in that: A storage assembly (2) is fixedly installed inside the seat plate (1), and the storage assembly (2) includes a screw rod (21) rotatably connected to the inside of the seat plate (1), and the number of the screw rods (21) is two, and the outer walls of the two screw rods (21) are threadedly connected to sliders (22), and the outer walls of the two sliders (22) are fixedly connected to a connecting rod (23) on the opposite side, and one end of the two screw rods (21) is fixedly connected to a crank (24), and the outer wall of the connecting rod (23) is fixedly connected to a writing assembly (3), and the writing assembly ( 3) comprises a connecting plate (31) fixedly connected to the outer wall of the connecting rod (23), the outer wall of the connecting plate (31) is fixedly connected to a receiving plate (32), a slide groove (33) is provided above the receiving plate (32), and the number of the slide grooves (33) is two, the insides of the two slide grooves (33) are slidably connected to support rods (34), and the number of the support rods (34) is four, the tops of the four support rods (34) are rotatably connected to a first hinge shaft (35), and the tops of the four first hinge shafts (35) are fixedly connected to a writing board (36).

2. A portable folding chair for teaching according to claim 1, characterized in that: A limiting block (4) is fixedly connected to the top of the seat plate (1), and the number of the limiting blocks (4) is two, and a rotating rod (5) is rotatably connected inside the two limiting blocks (4).

3. A portable folding chair for teaching according to claim 2, characterized in that: The outer wall of the rotating rod (5) is fixedly connected to a backrest (6), one end of the rotating rod (5) is rotatably connected to an adjustment knob (7), and the outer wall of the seat plate (1) is fixedly mounted with a support assembly (8), and the number of the support assemblies (8) is four.

4. A portable folding chair for teaching according to claim 3, characterized in that: The support assembly (8) comprises a connection seat (81) fixedly connected to the outer wall of the seat plate (1); the outer wall of the connection seat (81) is fixedly connected to a second hinge shaft (82); the interior of the second hinge shaft (82) is rotatably connected to a support leg (83); and the bottom of the support leg (83) is fixedly connected to a pad (84).

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