Chest jacking lifting structure of sitting posture corrector

Abstract

The utility model provides a chest jacking lifting structure of a sitting posture corrector, and belongs to the technical field of sitting posture correctors. Comprising a main rod, a lifting rod, a switch and an adjusting piece, a sliding groove is formed in the top of the main rod, the lower end of the lifting rod is embedded in the sliding groove, the top chest and the end, located outside the main rod, of the lifting rod are fixed, the lifting rod is provided with a cavity, the switch is slidably installed in the cavity, a through hole is formed in the top of the lifting rod, and the top of the switch penetrates through the through hole. A connecting block is fixed to the inner wall of the cavity and provided with a round hole, the pin is sleeved with a torsional spring, a plurality of end-to-end limiting clamping teeth are fixed to the inner wall of the sliding groove, one end of the adjusting piece is provided with a locking part, the lifting rod is provided with an opening, the locking part penetrates through the opening to be embedded between every two adjacent limiting clamping teeth, and the other end of the adjusting piece is provided with an arc-shaped part. The lower end of the switch is provided with an inclined part which abuts against the arc-shaped part. The chest jacking height adjusting device is simple and reasonable in combination, and the chest jacking height can be rapidly and conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sitting posture corrector, and relates to a sitting posture corrector chest lifting structure. BACKGROUND

[0002] In the learning process, modern students often bend their waists, necks or lie on the table to read books, and the writing posture does not conform to the standard habit, so that the students are prone to humpback or myopia and other problems, therefore, it is particularly important to ensure the correct sitting posture of students in the learning process.

[0003] Because the body of each student is different, the height requirement of the chest is different, but the lifting of the existing chest is mostly fixed adjustment of the screw structure, and the technical scheme with the authorization publication number CN215776770U adopts the lifting structure of the lifting sleeve and the screw rod, the lifting sleeve is rotated to drive the upper and lower sliding of the correction part, the lifting adjustment is realized, and the locking mechanism is fixed, the existing technology realizes the height adjustment of the two chest structures, but the height adjustment steps of the chest structure of the above existing technology are troublesome, and the lifting structure is complex. UTILITY MODEL CONTENT

[0004] The utility model aims at the shortage of prior art, and provides a sitting posture corrector chest lifting structure, which is used to solve the technical problems of the lifting structure for adjusting the height of the chest of the prior art sitting posture corrector mentioned in the background art.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A sitting posture corrector chest lifting structure, comprising:

[0007] A main rod, which is provided with a sliding groove with an opening upward at the top;

[0008] A lifting rod, which is embedded in the sliding groove at the lower end;

[0009] A chest, which is fixed to the outer end of the main rod with the lifting rod;

[0010] A switch, which is provided with a cavity in the lifting rod, is slidingly installed in the cavity, is provided with a through hole in the top of the lifting rod, and passes through the through hole at the top of the switch;

[0011] An adjusting part, which is hingedly arranged on the inner wall of the cavity, and is provided with a torsional spring between the adjusting part and the inner wall of the cavity for driving the adjusting part to reset;

[0012] A plurality of limiting teeth are fixed in the inner wall of the sliding groove side by side, the adjusting part has a locking part at one end, the lifting rod is provided with an opening for the locking part to pass through, the locking part is embedded between the adjacent two limiting teeth through the opening, the switch has an inclined part at the lower end, and the other end of the adjusting part abuts against the inclined part.

[0013] Working principle:

[0014] When the chest is adjusted upward, the inclined surface of the adjusting part and the limiting teeth arranged on the inner wall of the main rod has a guiding effect, the adjusting part rotates around the pin under the action of the guide, when the inclined surface of the locking part on the adjusting part is completely separated from the inclined surface of the limiting teeth, the adjusting part is reset under the torsional force of the torsional spring, the adjusting part and the limiting teeth repeat the movement during the upward movement of the chest, when the chest is raised to the required position, if the chest is subjected to a downward force, the flat surface of the locking part on the adjusting part abuts against the flat surface of the limiting teeth, thereby limiting the downward movement of the chest.

[0015] When the chest is adjusted downward, the switch is pressed down first, so that the switch is lowered, the switch applies a rotating force to the adjusting part through the inclined part, so that the locking part is separated from the limiting teeth, at this time, the lifting rod can freely move along the sliding groove, when the required position is adjusted, the switch is released, the adjusting part is reset under the action of the torsional spring, thereby embedding the locking part on the adjusting part between the adjacent two limiting teeth, and the torsional spring applies a force to the inclined part through the adjusting part and resets the switch.

[0016] The utility model discloses the beneficial effects are:

[0017] The utility model discloses the quick adjustment of chest height can be realized through the cooperation of the switch, the adjusting part and a plurality of limiting teeth, which is simple to operate, has few steps, is reasonable in structure and stable, and further improves the use experience of users. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model embodiment;

[0019] Figure 2 It is the sectional view of the utility model embodiment;

[0020] Figure 3 It is the local schematic diagram of the lifting rod of the utility model embodiment;

[0021] Figure 4 It is the local schematic diagram of the sliding rod of the utility model embodiment;

[0022] Figure 5 It is the structure schematic diagram of the adjusting part of the utility model embodiment;

[0023] Figure 6It is a structure schematic view of the switch of the embodiment of the utility model;

[0024] Figure 7 It is a sectional view of the lifting rod of the embodiment of the utility model;

[0025] Figure 8 It is a structure schematic view of the main rod of the embodiment of the utility model.

[0026] Mark explanation: 1, main rod, 2, sliding groove, 3, lifting rod, 4, top chest, 5, switch, 6, cavity, 7, through hole, 8, adjusting part, 9, adjusting groove, 10, pin, 11, connecting block, 12, torsional spring, 13, limit catch, 14, locking portion, 15, opening, 16, arc portion, 17, inclined portion, 18, limit post, 19, limit hole, 20, limit block, 21, adjusting hole, 22, cylinder, 23, reset spring, 24, sliding rod, 25, mounting block, 26, sponge pad. Specific embodiments

[0027] The following is the specific embodiment of the utility model and is further described the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0028] As Figures 1-6 The utility model discloses a sit -corrector top chest lifting structure, including: main rod 1, lifting rod 3, top chest 4, switch 5, adjusting part 8, the main rod 1 top has the opening sliding groove 2 to the up, the lifting rod 3 lower end is embedded in sliding groove 2, top chest 4 with lifting rod 3 is fixed at the main rod 1 outer one end, the lifting rod 3 is seted up with the cavity 6, the switch 5 sliding installation is in the cavity 6, the lifting rod 3 top has the through hole 7 that communicates the cavity 6, the switch 5 top passes through the through hole 7, the adjusting part 8 has adjusting groove 9, the adjusting groove 9 inner wall is fixed with pin 10, the cavity 6 inner wall is fixed with connecting block 11, the connecting block 11 is opened with the round hole for pin 10 to pass through, pin 10 is sleeved with torsional spring 12, the torsional spring 12 both ends are respectively with adjusting part 8, the cavity 6 inner wall abuts against, the sliding groove 2 inner wall is fixed with a plurality of limit catch 13 that is arranged side by side, the adjusting part 8 one end has the locking portion 14 of triangle type, the lifting rod 3 is opened with the opening 15 for locking portion 14 to pass through, the locking portion 14 passes through the opening 15 and is embedded between two adjacent limit catch 13, the adjusting part 8 other end has arc portion 16, the switch 5 lower end has inclined portion 17, the arc portion 16 and inclined portion 17 abut against, top chest 4 one end is fixed with sponge pad 26.

[0029] When the top chest 4 is adjusted upward, the inclined surface of the limiting clamping tooth 13 on the inner wall of the main rod 1 has a guiding effect on the adjusting part 8, and the main rod 1 is pulled upward, and the adjusting part 8 rotates under the action of the guide, and when the inclined surface of the locking part 14 on the adjusting part 8 is completely separated from the inclined surface of the limiting clamping tooth 13, the adjusting part 8 is reset under the torsional force of the torsional spring 12, and during the upward movement of the top chest 4, the adjusting part 8 and the limiting clamping tooth 13 repeat the movement, and when the top chest 4 is raised to the required position, if the top chest 4 is subjected to a downward force, the flat surface of the locking part 14 on the adjusting part 8 is in contact with the flat surface of the limiting clamping tooth 13, thereby limiting the downward movement of the top chest 4.

[0030] When the top chest 4 is adjusted downward, the switch 5 is pressed down first, so that the switch 5 is lowered, and the switch 5 applies a rotating force to the adjusting part 8 through the inclined part 17, so that the adjusting part 8 rotates around the pin 10, and the adjusting part 8 drives the locking part 14 to separate from the limiting clamping tooth 13, and at this time the lifting rod 3 can move freely along the sliding groove 2, and when the required position is reached, the switch 5 is released, and the adjusting part 8 is reset under the action of the torsional spring 12, so that the locking part 14 on the adjusting part 8 is embedded between the adjacent two limiting clamping teeth 13, and the torsional spring 12 applies a force to the inclined part 17 through the adjusting part 8 and resets the switch 5.

[0031] As shown in Figures 2-8 the inner side wall of the cavity 6 is fixed with two symmetrical limiting columns 18, the switch 5 is vertically provided with two limiting holes 19 for embedding the corresponding two limiting columns 18, the limiting column 18 and the limiting hole 19 cooperate to effectively limit the lifting stroke of the switch 5, the inner side wall of the cavity 6 is fixed with a limiting block 20, the switch 5 is vertically provided with an adjusting hole 21 for embedding the limiting block 20, the inner top wall of the adjusting hole 21 is fixed with a cylinder 22, the cylinder 22 is sleeved and fixed with a reset spring 23, the lower end of the reset spring 23 is connected with the top of the limiting block 20, and when the switch 5 is lowered, the switch 5 compresses the reset spring 23, and the reset spring 23 is compressed and has a certain elastic potential energy, the lifting rod 3 includes a sliding rod 24 and a mounting block 25, the sliding rod 24 is fixed at the bottom of the mounting block 25, the sliding rod 24 is embedded in the sliding groove 2, and the sliding rod 24 can move along the sliding groove 2, the cavity 6 is arranged in the sliding rod 24, the top chest 4 is fixed with one end of the mounting block 25, the through hole 7 penetrates through the mounting block 25 and the top of the sliding rod 24 and communicates with the cavity 6, the mounting block 25 is L-shaped, and the lower end of the mounting block 25 abuts against the top of the main rod 1.

[0032] The specific operation mode of the novel device is as follows:

[0033] When the top chest 4 is adjusted upward, the lifting rod 3 is pulled upward, so that the slide rod 24 moves along the sliding groove 2, the adjusting piece 8 and the inclined surface of the limiting clamping tooth 13 arranged on the inner wall of the main rod 1 have a guiding effect, the adjusting piece 8 will rotate around the pin 10 under the action of the guide, when the inclined surface of the locking part 14 on the adjusting piece 8 is completely separated from the inclined surface of the limiting clamping tooth 13, the adjusting piece 8 will reset under the torsion of the torsion spring 12, during the upward movement of the top chest 4, the adjusting piece 8 and the limiting clamping tooth 13 will repeat this movement, when the top chest 4 is raised to the required position, if the top chest 4 is subjected to a downward force, the plane of the locking part 14 on the adjusting piece 8 and the plane of the limiting clamping tooth 13 are pressed against each other, so as to limit the downward movement of the top chest 4;

[0034] When the top chest 4 is adjusted downward, the switch 5 is pressed down first, so that the switch 5 is compressed and reset by the reset spring 23, the reset spring 23 is compressed and has a certain elastic potential, the switch 5 applies a rotating force to the adjusting piece 8 through the inclined part 17, the adjusting piece 8 rotates around the connecting block 11, the adjusting piece 8 drives the locking part 14 to separate from the limiting clamping tooth 13, at this time, the lifting rod 3 can freely move along the sliding groove 2, when the required position is adjusted, the switch 5 is released, the switch 5 moves upward and resets under the action of the reset spring 23, the adjusting piece 8 resets under the action of the torsion spring 12, so that the locking part 14 on the adjusting piece 8 is embedded between the adjacent two limiting clamping teeth 13.

[0035] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A top chest lifting structure of a sitting posture corrector, characterized by, The utility model provides a kind of adjustable height of main rod, including: Main rod (1), the main rod (1) top is opened with opening upward chute (2); Lifting rod (3), the lower end of the lifting rod (3) is embedded in chute (2); Top chest (4), the top chest (4) is fixed with lifting rod (3) and is located the outer end of main rod (1); Switch (5), the lifting rod (3) is opened with cavity (6) inside, the switch (5) is slidably installed in cavity (6), the top of the lifting rod (3) is opened with through-hole (7) that communicates cavity (6), the top of the switch (5) passes through through-hole (7); Adjusting piece (8), the adjusting piece (8) is hingedly arranged in the inner wall of cavity (6), and a torsion spring (12) for driving the adjusting piece (8) to reset is arranged between the adjusting piece (8) and the inner wall of cavity (6); A plurality of limiting clamping teeth (13) are fixed side by side in the inner wall of chute (2), one end of the adjusting piece (8) is provided with a locking portion (14), the lifting rod (3) is provided with an opening (15) for the locking portion (14) to pass through, the locking portion (14) is embedded between the adjacent two limiting clamping teeth (13) through the opening (15), and the other end of the adjusting piece (8) abuts against the inclined portion (17).

2. A top chest lifting structure for a sitting posture corrector according to claim 1, wherein The adjusting piece (8) has an adjusting groove (9), a pin (10) is fixed to the inner wall of the adjusting groove (9), a connecting block (11) is fixed to the inner wall of the cavity (6), the connecting block (11) is provided with a circular hole for the pin (10) to pass through, the torsion spring (12) is sleeved on the pin (10), the two ends of the torsion spring (12) abut against the adjusting piece (8) and the inner wall of the cavity (6) respectively, and the other end of the adjusting piece (8) has an arc-shaped portion (16).

3. A top chest lifting structure for a sitting posture corrector according to claim 1, wherein Two symmetrical limiting columns (18) are fixed to the inner side wall of the cavity (6), and the switch (5) is vertically provided with two limiting holes (19) for the corresponding two limiting columns (18) to be embedded.

4. A top chest lifting structure of a sitting posture corrector according to claim 3, characterized in that, A limiting block (20) is fixed to the inner side wall of the cavity (6), the switch (5) is vertically provided with an adjusting hole (21) for the limiting block (20) to be embedded, a cylindrical column (22) is fixed to the inner top wall of the adjusting hole (21), a reset spring (23) is sleeved and fixed on the cylindrical column (22), and the lower end of the reset spring (23) is connected with the top of the limiting block (20).

5. A top chest lifting structure for a sitting posture corrector as claimed in claim 1, wherein, The lifting rod (3) comprises a sliding rod (24) and a mounting block (25), the sliding rod (24) is fixed to the bottom of the mounting block (25), the sliding rod (24) is embedded in the chute (2), the cavity (6) is arranged in the sliding rod (24), and the top chest (4) is fixed to one end of the mounting block (25).

6. A top chest lifting structure for a sitting posture corrector according to claim 5, wherein The through-hole (7) penetrates the top of the mounting block (25) and the sliding rod (24) and communicates with the cavity (6), and the lower end of the mounting block (25) abuts against the top of the main rod (1).

7. A top chest lifting structure for a sitting posture corrector as claimed in claim 1, wherein, One end of the top chest (4) is fixed with a sponge pad (26).

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