Rotary adjusting mechanism of student desk

Abstract

The utility model belongs to the technical field of student desks, and relates to a rotation adjusting mechanism of a student desk, which comprises a connecting plate connected with a desk plate and a foot tube, the connecting plate comprises a third notch and a first notch, and a foot tube assembly comprises a foot tube and an adjusting assembly arranged at the upper end of the foot tube. The adjusting assembly comprises an adjusting assembly body and a limiting rotating cover which is arranged on one side of the adjusting assembly body in a protruding mode and clamped into the third notch, and the adjusting assembly body is provided with a first kidney-shaped hole. Handles and limiting blocks which move up and down in the limiting rotating covers to enable the limiting rotating covers to be separated from or embedded into the first notches to achieve rotation of the table plate are installed on the two sides of the first kidney-shaped holes respectively, and each handle comprises a user lifting end, a middle end connected with the corresponding foot pipe through a rotating shaft and a head end connected with the corresponding limiting block through a penetrating bolt. The rotary adjusting mechanism of the student desk is novel in structure, stable, reliable and practical, the desk plate can be rotated to be matched with the toppling chair, so that students can sleep in a lying mode during noon break, and the noon break of the students is facilitated.

Description

Technical Field

[0001] The utility model relates to a rotation adjustment mechanism for a student desk, belonging to the technical field of student desks. Background Art

[0002] Desks and chairs, as essential teaching facilities in schools, are receiving more and more attention. More functional and comfortable desks and chairs are more helpful in improving students' learning efficiency.

[0003] In some schools, students can only lie on their desks to take a nap with their heads pressing on their arms, which causes a lot of discomfort to the body. After a long time, they often experience problems such as numbness in the arms, sore neck, and back pain. For students who are too tall or too short, the discomfort is more serious. In order to meet the learning comfort of students of different heights, and also let students have a good posture during lunch break and increase the comfort of lunch break, it is very necessary to develop a new, multi-functional desk that can be rotated and adjusted to provide a comfortable lunch break environment and increase the comfort of nap. Utility Model Content

[0004] The utility model provides a rotating adjustment mechanism for student desks which is novel in structure, stable, reliable and practical, and can make the table top rotate and cooperate with the tiltable chair to provide students with sleeping conditions during lunch break, thereby facilitating students to take lunch break, and solves the problem of easy falling off in the prior art.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A rotating adjustment mechanism for a student desk comprises a connecting plate and a leg tube connected to a table top, the connecting plate comprises a third notch and a first notch, the leg tube assembly comprises a leg tube and an adjusting assembly mounted on the upper end of the leg tube, the adjusting assembly comprises an adjusting assembly body and a limit rotating cover protrudingly arranged on one side of the adjusting assembly body, the limit rotating cover is inserted into the third notch, the adjusting assembly body is provided with a first waist hole, handles and a limit block which moves up and down in the limit rotating cover to disengage from or embed into the first notch to realize the rotation of the table top are respectively installed on both sides of the first waist hole, the handle comprises a user lifting end, an intermediate end connected to the leg tube through a rotating shaft, and a head end connected to the limit block through a through bolt. The design of the first waist hole can cause the through bolt to move up and down therein, driving the limit block to disengage from the first notch downward, so that the connecting plate and the leg tube can rotate relatively, and the setting of the second notch limits the rotation angle.

[0007] The through bolt passes through the first waist hole and is fixedly connected to the limiting block.

[0008] The handle head end is also provided with a second waist hole for installing a through bolt. The second waist hole can allow the through bolt to move slightly and not be completely fixed.

[0009] The connecting plate further comprises a second notch matching the position-limiting rotating cover, and the second notch is an arc-shaped notch.

[0010] The limit rotating cover comprises an enlarged hole at the upper end and a reduced hole at the lower end, the limit block comprises an enlarged end for detaching from or embedding in the first notch and a reduced end matching the reduced hole, the reduced end is sleeved with a spring for returning to position, and the spring is clamped between the limit rotating cover and the limit block.

[0011] A first side cover is installed outside the limiting block and the limiting rotating cover.

[0012] The utility model has the following advantages and beneficial effects:

[0013] The utility model relates to a rotating adjustment mechanism for a student desk. When the user lifts the handle, the through bolt moves downward, driving the limit block to move downward and disengage from the first notch. The table board can be rotated by pushing up the table board. The limit block moves upward under the action of the spring. When the table board returns to a horizontal state, the limit block is embedded in the first notch upward to achieve locking. The utility model has a novel structure, is stable, reliable and practical, can make the table board rotate and cooperate with the tiltable chair to provide students with sleeping conditions during lunch break, which is convenient for students to take lunch break, and can also provide space for the user's feet when the footrest of the chair is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation cases of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation cases or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation cases of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a structural schematic diagram (1) of a rotation adjustment mechanism for a student desk in the utility model;

[0016] Figure 2 This is a structural schematic diagram of a rotation adjustment mechanism of a student desk in the utility model (2);

[0017] Figure 3 It is a structural schematic diagram (3) of a rotation adjustment mechanism of a student desk in the utility model;

[0018] Figure 4 It is a structural schematic diagram of a first side cover hidden in a rotation adjustment mechanism of a student desk in the utility model;

[0019] Figure 5It is a structural schematic diagram of a connecting plate in a rotation adjustment mechanism of a student desk in the utility model;

[0020] Figure 6 This is a structural schematic diagram (1) of a leg tube in a rotation adjustment mechanism of a student desk in the utility model;

[0021] Figure 7 The utility model is a schematic diagram (2) of the structure of the leg tube in the rotation adjustment mechanism of the student desk.

[0022] In the figure: 1-handle; 2-connecting plate; 3-leg; 4-first side cover; 5-rotating shaft; 6-first waist hole; 7-second waist hole; 8-through bolt; 9-limiting rotating cover; 10-reducing hole; 11-reducing end; 12-enlarging end; 13-limiting block; 14-first notch; 15-second notch; 16-third notch; 17-enlarging hole; 18-spring. DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Reference Figure 1-Figure 7 The rotating adjustment mechanism of a student desk comprises a connecting plate 2 and a leg tube 3 connected to a table top, the connecting plate 2 comprises a third notch 16 and a first notch 14, the leg tube 3 assembly comprises a leg tube 3 and an adjustment assembly mounted on the upper end of the leg tube 3, the adjustment assembly comprises an adjustment assembly body and a limit rotating cover 9 with a protrusion arranged on one side of the adjustment assembly body and inserted into the third notch 16, the adjustment assembly body is provided with a first waist hole 6, the first waist hole 6 is respectively provided with a handle 1 and a limit block 13 which moves up and down in the limit rotating cover 9 to make it disengage from or embed into the first notch 14 to realize the rotation of the table top, the handle 1 comprises a user lifting end, a middle end connected to the leg tube 3 through a rotating shaft 5, and a head end connected to the limit block 13 through a second waist hole 8. The design of the first waist hole 6 can cause the second waist hole 8 to move up and down therein, driving the limit block 13 to disengage from the first notch 14 downward, so that the connecting plate 2 and the leg tube 3 can rotate relative to each other, and the setting of the second notch 15 limits the rotation angle. The second waist hole 8 passes through the first waist hole 6 and is fixedly connected to the limiting block 13 .

[0025] The head end of the handle 1 is also provided with a second waist hole 7 for installing a second waist hole 8. The provision of the second waist hole 7 allows the second waist hole 8 to move slightly and is not completely fixed. The connecting plate 2 also includes a second notch 15 matching the limit rotating cover 9, and the second notch 15 is an arc-shaped notch. The limit rotating cover 9 includes an enlarged hole 17 at the upper end and a reduced hole 10 at the lower end, and the limit block 13 includes an enlarged end 12 for disengaging from or embedding in the first notch 14 and a reduced end 11 matching the reduced hole 10, and the reduced end 11 is sleeved with a spring 18 for returning. The spring 18 is stuck between the limit rotating cover 9 and the limit block 13. A first side cover 4 is installed on the outside of the limit block 13 and the limit rotating cover 9.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A rotation adjustment mechanism for a student desk, comprising a connecting plate and a leg assembly connected to a desk board, characterized in that: The connecting plate includes a third notch and a first notch, the leg tube assembly includes a leg tube and an adjustment assembly installed on the upper end of the leg tube, the adjustment assembly includes an adjustment assembly body and a limit rotating cover with a protrusion arranged on one side of the adjustment assembly body, the limit rotating cover is inserted into the third notch, the adjustment assembly body is provided with a first waist hole, handles and limit blocks that move up and down in the limit rotating cover to disengage from or embed into the first notch to realize rotation of the table top are respectively installed on both sides of the first waist hole, the handle includes a user lifting end, a middle end connected to the leg tube through a rotating shaft, and a head end connected to the limit block through a through bolt.

2. A rotation adjustment mechanism for a student desk according to claim 1, characterized in that: The through bolt passes through the first waist hole and is fixedly connected to the limiting block.

3. A rotation adjustment mechanism for a student desk according to claim 2, characterized in that: The handle head end is also provided with a second waist hole for installing a through bolt.

4. A rotation adjustment mechanism for a student desk according to claim 1, 2 or 3, characterized in that: The connecting plate further comprises a second notch matching the position-limiting rotating cover, and the second notch is an arc-shaped notch.

5. A rotation adjustment mechanism for a student desk according to claim 1, 2 or 3, characterized in that: The limit rotating cover includes an enlarged hole at the upper end and a reduced hole at the lower end, and the limit block includes an enlarged end for detaching from or embedding in the first notch and a reduced end matching the reduced hole, and the reduced end is sleeved with a spring for returning to position.

6. The rotation adjustment mechanism of a student desk according to claim 1, characterized in that: A first side cover is installed outside the limiting block and the limiting rotating cover.

Images