CN220655048U - Support type adjustable supporting device - Google Patents

Abstract

The utility model provides a supporting type adjustable supporting device, which comprises: the device comprises a fixed mounting seat, a positioning clamping seat, a turnover connecting seat, a movable supporting component and a release lock operation component, wherein the positioning clamping seat is integrally formed or fixedly connected to the fixed mounting seat, and the turnover connecting seat is pivoted on the fixed mounting seat around a first horizontal axis; the positioning clamping seat is provided with at least two positioning clamping parts which are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis; the movable supporting component is movably arranged between the turnover connecting seat and the fixed mounting seat, and is positioned on a positioning clamping part which can be selectively clamped and positioned at any position; the lock releasing operation assembly is movably arranged between the fixed mounting seat and the positioning clamping seat, and can push the movable supporting assembly to be separated from the clamped positioning clamping part. The supporting type adjustable supporting device has the advantages of simple structure, low manufacturing cost, simple and convenient angle adjustment and stable support.

Description

Support type adjustable supporting device

Technical Field

The utility model relates to the technical field of multifunctional table support accessories, in particular to a support type adjustable support device.

Background

In recent years, with the continuous improvement of living standard, multifunctional tables such as office tables and computer tables are widely applied, and are more and more popular and needed by people due to the characteristics of convenience and practicability of the multifunctional tables.

Wherein, strutting arrangement is as the main component part of multi-functional table, and strutting arrangement can play the effect of stable support table in the use for the user can use more comfortably.

However, the supporting device used in the conventional multifunctional table has a complex structure and high manufacturing cost; moreover, the angle adjustment is complex in operation, the defect of unstable support exists, the unstable support is easy to occur in the use process, and the use experience of a user is seriously influenced.

Accordingly, there is a strong need for a supporting type adjustable supporting device to overcome the above-mentioned problems.

Disclosure of Invention

The embodiment of the utility model aims to provide a supporting type adjustable supporting device, which has the advantages of simple structure, low manufacturing cost, simple and convenient angle adjustment and stable support.

To achieve the above object, a first aspect of an embodiment of the present utility model provides a supporting type adjustable supporting device, including: a fixed mounting seat, a positioning clamping seat, a turnover connecting seat, a movable supporting component and a lock releasing operation component,

the positioning clamping seat is integrally formed or fixedly connected to the fixed mounting seat, and the overturning connecting seat is pivoted on the fixed mounting seat around a first horizontal axis;

at least two positioning clamping parts are formed on the positioning clamping seat, and the positioning clamping parts are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis;

the movable supporting component is movably arranged between the overturning connecting seat and the fixed mounting seat, and is selectively clamped and positioned on the positioning clamping part at any position;

the lock releasing operation assembly is movably arranged between the fixed mounting seat and the positioning clamping seat, and can push the movable supporting assembly to be separated from the clamped positioning clamping part.

Optionally, the movable support assembly includes: the sliding connecting seat is arranged on the overturning connecting seat in a sliding manner along the direction perpendicular to the first horizontal axis, the lower end of the linkage supporting rod is pivoted on the fixed mounting seat around a second horizontal axis, and the upper end of the linkage supporting rod is pivoted on the sliding connecting seat around a third horizontal axis;

the upper end of the swing supporting rod is pivoted on the sliding connecting seat around a fourth horizontal axis, and the lower end of the swing supporting rod is selectively clamped and positioned on the positioning clamping part at any position;

the second horizontal axis, the third horizontal axis and the fourth horizontal axis are all parallel to the first horizontal axis.

Optionally, the movable support assembly further comprises: the limiting installation seat is fixed on the overturning connecting seat, a long limiting hole is formed in the limiting installation seat, the length direction of the long limiting hole is perpendicular to the first horizontal axis, and the sliding connecting seat is slidably arranged in the long limiting hole.

Optionally, the lock release operation assembly includes: the lock release operation piece is pivoted on the fixed mounting seat around a fifth horizontal axis, and the sliding pushing seat is arranged on the positioning clamping seat in a sliding manner along the horizontal direction perpendicular to the first horizontal axis;

one end of the linkage swing rod is pivoted to the upper end of the lock release operation member around a sixth horizontal axis, and the other end of the linkage swing rod is pivoted to the sliding pushing seat around a seventh horizontal axis;

the fifth horizontal axis, the sixth horizontal axis and the seventh horizontal axis are all parallel to the first horizontal axis.

Optionally, the positioning clamping portion is a positioning groove formed in the positioning clamping seat, the positioning grooves are uniformly distributed at intervals along the horizontal direction perpendicular to the first horizontal axis, and the notches of the positioning grooves are obliquely arranged towards the direction close to the overturning connecting seat.

Optionally, a long sliding mounting hole is further formed in the positioning clamping seat, the length direction of the long sliding mounting hole is horizontally perpendicular to the first horizontal axis, the long sliding mounting hole vertically penetrates through and is communicated with all the positioning grooves, and the sliding pushing seat is slidably arranged in the long sliding mounting hole.

Optionally, pushing grooves corresponding to the positioning grooves one by one are formed in the sliding pushing seat, and the pushing grooves and the openings of the corresponding positioning grooves have the same shape;

a locking position and a releasing position are sequentially distributed in the sliding direction of the sliding pushing seat along the direction away from the fixed mounting seat, when the sliding pushing seat moves to the locking position, the sliding pushing seat is abutted against one end of the long sliding mounting hole, which is close to the fixed mounting seat, and the pushing grooves are in one-to-one corresponding opposite communication with the positioning grooves; when the sliding pushing seat moves to the unlocking position, the pushing groove and the positioning groove are staggered.

Optionally, the lock release operation assembly further comprises: the elastic piece is abutted between the sliding pushing seat and the positioning clamping seat and drives the sliding pushing seat to move to the locking position constantly; when the upper end of the lock releasing operation piece drives the linkage swing rod to swing downwards, the linkage swing rod drives the sliding pushing seat to move to the lock releasing position.

Optionally, an accommodating groove is formed on the positioning card seat, the positioning groove and the elongated sliding mounting hole are both arranged at the bottom of the accommodating groove, and the top surface of the sliding pushing seat is flush with the bottom surface of the accommodating groove.

Optionally, a lock release operation part is further formed at the lower end of the lock release operation member, and the lock release operation part is located below the fixed mounting seat.

Because the positioning clamping seat of the supporting type adjustable supporting device is integrally formed or fixedly connected to the fixed mounting seat, the overturning connecting seat is pivoted on the fixed mounting seat around a first horizontal axis; the positioning clamping seat is provided with at least two positioning clamping parts which are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis; the movable supporting component is movably arranged between the turnover connecting seat and the fixed mounting seat, and is positioned on a positioning clamping part which can be selectively clamped and positioned at any position; the lock releasing operation assembly is movably arranged between the fixed mounting seat and the positioning clamping seat, and can push the movable supporting assembly to be separated from the clamped positioning clamping part. When the inclination angle of the turnover connecting seat needs to be adjusted, the lock releasing operation assembly can be operated to push the movable supporting assembly to be separated from the clamped positioning clamping part, then the turnover connecting seat is rotated to the required inclination angle, and then the lock releasing operation assembly is released, so that the supporting assembly can be clamped and positioned on the aligned positioning clamping part. The positioning clamping parts are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis, and the supporting components are clamped and positioned on the positioning clamping parts at different positions, so that a plurality of positions for selecting supporting angles can be provided. Not only simple structure, greatly reduced manufacturing cost, angular adjustment simple operation is convenient moreover, supports in the upset connecting seat and between the location block portion of counterpoint through supporting component, has improved the stability of support greatly, prevents to take place to support the unstable condition in the use to avoid influencing user's use experience.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a supporting type adjustable supporting device according to the present utility model.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic view of fig. 1 at another viewing angle.

Fig. 4 is a front view of fig. 1.

Fig. 5 is a cross-sectional view taken along line A-A of fig. 4.

Fig. 6 is a schematic perspective view of a positioning card seat of a supporting type adjustable supporting device according to an embodiment of the utility model.

Detailed Description

The utility model will be further described with reference to the drawings and preferred embodiments, but the embodiments of the utility model are not limited thereto.

Referring to fig. 1 to 6, the supporting type adjustable supporting device 100 of the present utility model includes: the fixing mount 10, the positioning card 20, the turnover connecting seat 30, the movable supporting component 40 and the releasing operation component 50, the positioning card 20 is fixedly connected to the fixing mount 10, however, in the embodiment thereof, the positioning card 20 may be integrally formed on the fixing mount 10, which is within the protection scope of the present utility model, and therefore, detailed description thereof is omitted. The flip-over connector 30 is pivotally connected to the fixed mount 10 about a first horizontal axis. The positioning clamping seat 20 is formed with at least two positioning clamping portions (not labeled in the figure), and the positioning clamping portions are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis line so as to provide a plurality of different clamping positions. The movable supporting component 40 is movably arranged between the turnover connecting seat 30 and the fixed mounting seat 10, and the movable supporting component 40 is a positioning clamping part which can be selectively clamped and positioned at any position. The lock releasing operation assembly 50 is movably disposed between the fixed mounting seat 10 and the positioning clamping seat 20, and the lock releasing operation assembly 50 can push the movable supporting assembly 40 to be separated from the clamped positioning clamping portion. Then, when the inclination angle of the flip connecting seat 30 needs to be adjusted, the release lock operating assembly 50 can be operated to push the movable supporting assembly 40 to be separated from the clamped positioning and clamping portion, then the flip connecting seat 30 is rotated to a required inclination angle, and then the release lock operating assembly 50 is released, so that the supporting assembly can be clamped and positioned on the aligned positioning and clamping portion. The positioning clamping parts are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis, and the supporting components are clamped and positioned on the positioning clamping parts at different positions, so that a plurality of positions for selecting supporting angles can be provided. Not only simple structure, greatly reduced manufacturing cost, angular adjustment simple operation is convenient moreover, supports in the upset connecting seat 30 and between the location block portion of counterpoint through supporting component, has improved the stability of supporting greatly, prevents to take place to support the unstable condition in the use to avoid influencing user's use experience. Specifically, the following are:

referring to fig. 1 to 3 and 5, the movable supporting component 40 includes: the linkage support rod 41, the sliding connection seat 42 and the swinging support rod 43, wherein the sliding connection seat 42 is arranged on the overturning connection seat 30 in a sliding manner along the direction vertical to the first horizontal axis, the lower end of the linkage support rod 41 is pivoted on the fixed installation seat 10 around a second horizontal axis, and the upper end of the linkage support rod 41 is pivoted on the sliding connection seat 42 around a third horizontal axis. The upper end of the swinging support rod 43 is pivoted on the sliding connecting seat 42 around a fourth horizontal axis, and the lower end of the swinging support rod 43 is a positioning and clamping part which can be selectively clamped and positioned at any position. The second horizontal axis, the third horizontal axis and the fourth horizontal axis are all parallel to the first horizontal axis. When the lower end of the swinging support rod 43 is clamped and positioned on the aligned positioning clamping part, the double-rod formed by the linkage support rod 41 and the swinging support rod 43 can be formed to support the inclined position of the turnover connecting seat 30, and the supporting structure is firmer and more stable.

Referring to fig. 2, 3 and 5, the movable supporting component 40 further includes: the limiting mounting seat 44, the limiting mounting seat 44 is fixed on the overturning connecting seat 30, the limiting mounting seat 44 is provided with a long limiting hole 441, the length direction of the long limiting hole 441 is perpendicular to the first horizontal axis, and the sliding connecting seat 42 is slidably arranged in the long limiting hole 441. Thereby realizing the mounting structure of sliding the sliding connection seat 42 on the turnover connection seat 30 along the direction vertical to the first horizontal axis, limiting the sliding travel of the sliding connection seat 42 in the long limiting hole 441, and ensuring the structure to be safer and more reliable.

Referring to fig. 1 to 6, the lock release operation assembly 50 includes: the lock release operating member 51 is pivoted on the fixed mounting seat 10 around a fifth horizontal axis, the sliding pushing seat 52 is arranged on the positioning clamping seat 20 in a sliding manner along the horizontal direction perpendicular to the first horizontal axis, and the sliding pushing seat 52 is connected with the linkage swinging rod 53. One end of the linkage swing rod 53 is pivoted to the upper end of the lock release operating member 51 around a sixth horizontal axis, and the other end of the linkage swing rod 53 is pivoted to the sliding pushing seat 52 around a seventh horizontal axis. The lock release operating member 51 and the linkage swinging rod 53 form a crank link mechanism, the linkage swinging rod 53 can be driven to slide along the horizontal direction vertical to the first horizontal axis by operating the lock release operating member 51, and the linkage structure is simpler and more reasonable and the operation is more convenient.

Referring to fig. 2, 3, 5 and 6, in particular, in the present embodiment, the positioning engaging portions are positioning grooves 21 formed on the positioning seat 20, and the positioning grooves 21 are uniformly distributed along a horizontal direction perpendicular to the first horizontal axis at intervals, so as to realize stable adjustment of the inclination angle. The notches of the positioning grooves 21 are obliquely arranged towards the direction close to the overturning connecting seat 30, so that the lower ends of the swinging support rods 43 can be conveniently positioned and clamped.

Referring to fig. 1 to 3, fig. 5 and fig. 6, the positioning card base 20 is further provided with an elongated sliding mounting hole 22, the length direction of the elongated sliding mounting hole 22 is horizontally perpendicular to the first horizontal axis, the elongated sliding mounting hole 22 vertically penetrates through all the positioning grooves 21, and the sliding pushing base 52 is slidably disposed in the elongated sliding mounting hole 22. Therefore, the sliding pushing seat 52 slides along the horizontal direction perpendicular to the first horizontal axis to form a mounting structure on the positioning clamping seat 20, and the structure is more compact and reasonable.

Furthermore, the sliding pushing seat 52 is provided with pushing grooves 521 corresponding to the positioning grooves 21 one by one, and the shapes of the openings of the pushing grooves 521 and the corresponding positioning grooves 21 are the same, so that the lower end of the swinging support rod 43 can be conveniently and simultaneously positioned and clamped in the pushing grooves 521 which are opposite to be communicated with the corresponding positioning grooves 21. A locking position and a releasing position are sequentially distributed along the sliding direction of the sliding pushing seat 52 along the direction away from the fixed mounting seat 10, when the sliding pushing seat 52 moves to the locking position, the sliding pushing seat 52 abuts against one end of the long sliding mounting hole 22, which is close to the fixed mounting seat 10, and the pushing grooves 521 are in one-to-one corresponding opposite communication with the positioning grooves 21, and at the moment, the lower end of the swinging support rod 43 can be simultaneously positioned and clamped in the pushing grooves 521 which are opposite to the communication with the corresponding positioning grooves 21. When the sliding pushing seat 52 moves to the releasing position, the pushing groove 521 and the positioning groove 21 are staggered. In the process of moving the sliding pushing seat 52 from the locking position to the unlocking position, the side wall of the pushing groove 521, which is close to the overturning connecting seat 30, can push the lower end of the swinging support rod 43 to be separated from the clamped positioning groove 21 until the lower end of the swinging support rod 43 moves to the required clamping positioning position, then the sliding pushing seat 52 moves back to the locking position, the pushing groove 521 is in one-to-one opposite communication with the positioning groove 21, the lower end of the swinging support rod 43 is clamped and positioned in the other opposite communicated pushing groove 521 and the corresponding positioning groove 21, and the locking and unlocking operation is more convenient and reliable.

Referring to fig. 2 and 5, the lock release operation assembly 50 further includes: the elastic member 54, the elastic member 54 abuts between the sliding pushing seat 52 and the positioning card seat 20, and the elastic member 54 drives the sliding pushing seat 52 to move to the locking position. In the present embodiment, the elastic member 54 may be a spring that is compressed, but not limited to this. Thereby realizing the automatic resetting and the holding of the sliding pushing seat 52 in the locking position, the structure is more reasonable, and the operation is more convenient and labor-saving. When the upper end of the lock releasing operation member 51 drives the linkage swinging rod 53 to swing downwards, the linkage swinging rod 53 drives the sliding pushing seat 52 to move to the lock releasing position. Then, the upper end of the lock releasing operation member 51 drives the linkage swing rod 53 to swing downwards, and the linkage swing rod 53 can drive the sliding pushing seat 52 to move to the lock releasing position against the elastic force of the elastic member 54, so that the operation is more convenient.

Referring to fig. 3, 5 and 6, in the present embodiment, a receiving groove 23 is formed on the positioning card base 20, the positioning groove 21 and the elongated sliding mounting hole 22 are both opened at the bottom of the receiving groove 23, the top surface of the sliding pushing base 52 is flush with the bottom surface of the receiving groove 23, and when the sliding pushing base 52 moves to the releasing position, the pushing groove 521 and the positioning groove 21 are staggered, so that the lower end of the swinging strut 43 can slide on the surface with continuous flush. Moreover, when the turnover connecting seat 30 rotates downwards to be completely folded on the positioning clamping seat 20, the linkage supporting rod 41, the sliding connecting seat 42, the swinging supporting rod 43 and the limiting installation seat 44 can be accommodated and hidden in the accommodating groove 23, so that the volume of the turnover connecting seat 30 after being completely folded on the positioning clamping seat 20 is smaller, the use is more flexible and convenient, and the occupied space can be reduced.

Referring to fig. 1, 2 and 5, the lock release operation member 51 is further formed at a lower end thereof with a lock release operation portion 511, and the lock release operation portion 511 is located below the fixed mounting base 10. The upper end of the lock release operating member 51 can swing downwards by operating the lock release operating portion 511 to swing downwards, the upper end of the lock release operating member 51 drives the linkage swinging rod 53 to swing downwards, and the linkage swinging rod 53 can drive the sliding pushing seat 52 to move to the lock release position against the elastic force of the elastic member 54, so that the operation and adjustment are more convenient.

The working principle of the supporting type adjustable supporting device 100 of the present utility model will be described in detail with reference to the accompanying drawings: when the inclination angle of the turnover connecting seat 30 needs to be adjusted, the upper end of the release lock operating member 51 can swing downwards by operating the release lock operating portion 511 to rotate upwards, then the upper end of the release lock operating member 51 drives the linkage swing rod 53 to swing downwards, the linkage swing rod 53 can drive the sliding pushing seat 52 to move towards the release lock position against the elastic force of the elastic member 54, in the process that the sliding pushing seat 52 moves from the locking position to the release lock position, the side wall, close to the turnover connecting seat 30, of the pushing groove 521 can push the lower end of the swing supporting rod 43 to separate from the clamped positioning groove 21 until the lower end of the swing supporting rod 43 moves to the required clamping positioning position, then the sliding pushing seat 52 moves back to the locking position, the pushing grooves 521 are in one-to-one corresponding opposite communication with the positioning grooves 21, and the lower end of the swing supporting rod 43 is clamped and positioned in the other pushing groove 521 which is opposite to be in communication with the corresponding positioning groove 21. The inclination angle of the turnover connecting seat 30 can be locked, thereby realizing the purpose of adjusting the inclination angle of the turnover connecting seat 30.

Of course, when the inclination angle of the turnover connecting seat 30 needs to be increased, the turnover connecting seat 30 can be directly rotated upwards without operating the releasing lock operation part 511, the lower end of the swinging support rod 43 can automatically swing and fold towards the direction close to the turnover connecting seat 30 under the action of gravity, so that the lower end of the swinging support rod 43 automatically slides into the pushing groove 521 and the positioning groove 21 which are closer to the fixed mounting seat 10 until the turnover connecting seat 30 rotates upwards to the required inclination angle, and the lower end of the swinging support rod 43 can be clamped and positioned in the pushing groove 521 and the positioning groove 21, thereby increasing the inclination angle of the turnover connecting seat 30.

For example, the supporting type adjustable supporting device 100 of the present utility model can be installed and used in a multifunctional table, i.e. the table board of the multifunctional table is fixed on the turnover connecting seat 30, so as to adjust the inclination angle of the table board, thereby meeting different use requirements. Of course, the specific application of the supporting type adjustable supporting device 100 of the present utility model is not limited thereto, and a person skilled in the art can flexibly select and apply the supporting type adjustable supporting device to other supporting requirements for adjusting the inclination angle according to actual use requirements, so detailed descriptions thereof are omitted.

Because the positioning clamping seat 20 of the supporting type adjustable supporting device 100 is integrally formed or fixedly connected to the fixed mounting seat 10, the overturning connecting seat 30 is pivoted on the fixed mounting seat 10 around a first horizontal axis; the positioning clamping seat 20 is provided with at least two positioning clamping parts which are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis; the movable supporting component 40 is movably arranged between the turnover connecting seat 30 and the fixed mounting seat 10, and the movable supporting component 40 is a positioning clamping part which can be selectively clamped and positioned at any position; the lock releasing operation assembly 50 is movably disposed between the fixed mounting seat 10 and the positioning clamping seat 20, and the lock releasing operation assembly 50 can push the movable supporting assembly 40 to be separated from the clamped positioning clamping portion. Then, when the inclination angle of the flip connecting seat 30 needs to be adjusted, the release lock operating assembly 50 can be operated to push the movable supporting assembly 40 to be separated from the clamped positioning and clamping portion, then the flip connecting seat 30 is rotated to a required inclination angle, and then the release lock operating assembly 50 is released, so that the supporting assembly can be clamped and positioned on the aligned positioning and clamping portion. The positioning clamping parts are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis, and the supporting components are clamped and positioned on the positioning clamping parts at different positions, so that a plurality of positions for selecting supporting angles can be provided. Not only simple structure, greatly reduced manufacturing cost, angular adjustment simple operation is convenient moreover, supports in the upset connecting seat 30 and between the location block portion of counterpoint through supporting component, has improved the stability of supporting greatly, prevents to take place to support the unstable condition in the use to avoid influencing user's use experience.

The present utility model has been described above in connection with the embodiments, but the present utility model is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the present utility model.

Claims (10)

1. A support type adjustable support device, comprising: a fixed mounting seat, a positioning clamping seat, a turnover connecting seat, a movable supporting component and a lock releasing operation component,

the positioning clamping seat is integrally formed or fixedly connected to the fixed mounting seat, and the overturning connecting seat is pivoted on the fixed mounting seat around a first horizontal axis;

at least two positioning clamping parts are formed on the positioning clamping seat, and the positioning clamping parts are distributed at intervals along the horizontal direction perpendicular to the first horizontal axis;

the movable supporting component is movably arranged between the overturning connecting seat and the fixed mounting seat, and is selectively clamped and positioned on the positioning clamping part at any position;

the lock releasing operation assembly is movably arranged between the fixed mounting seat and the positioning clamping seat, and can push the movable supporting assembly to be separated from the clamped positioning clamping part.

2. The support-type adjustable support device of claim 1, wherein the movable support assembly comprises: the sliding connecting seat is arranged on the overturning connecting seat in a sliding manner along the direction perpendicular to the first horizontal axis, the lower end of the linkage supporting rod is pivoted on the fixed mounting seat around a second horizontal axis, and the upper end of the linkage supporting rod is pivoted on the sliding connecting seat around a third horizontal axis;

the upper end of the swing supporting rod is pivoted on the sliding connecting seat around a fourth horizontal axis, and the lower end of the swing supporting rod is selectively clamped and positioned on the positioning clamping part at any position;

the second horizontal axis, the third horizontal axis and the fourth horizontal axis are all parallel to the first horizontal axis.

3. The support-type adjustable support device of claim 2, wherein the movable support assembly further comprises: the limiting installation seat is fixed on the overturning connecting seat, a long limiting hole is formed in the limiting installation seat, the length direction of the long limiting hole is perpendicular to the first horizontal axis, and the sliding connecting seat is slidably arranged in the long limiting hole.

4. The support-type adjustable support device of claim 2, wherein the lock release operating assembly comprises: the lock release operation piece is pivoted on the fixed mounting seat around a fifth horizontal axis, and the sliding pushing seat is arranged on the positioning clamping seat in a sliding manner along the horizontal direction perpendicular to the first horizontal axis;

one end of the linkage swing rod is pivoted to the upper end of the lock release operation member around a sixth horizontal axis, and the other end of the linkage swing rod is pivoted to the sliding pushing seat around a seventh horizontal axis;

the fifth horizontal axis, the sixth horizontal axis and the seventh horizontal axis are all parallel to the first horizontal axis.

5. The supporting type adjustable supporting device according to claim 4, wherein the positioning clamping portions are positioning grooves formed in the positioning clamping base, the positioning grooves are uniformly distributed at intervals along the horizontal direction perpendicular to the first horizontal axis, and the notches of the positioning grooves are obliquely arranged towards the direction close to the overturning connecting base.

6. The supporting type adjustable supporting device as claimed in claim 5, wherein the positioning clamping seat is further provided with an elongated sliding mounting hole, the length direction of the elongated sliding mounting hole is horizontally perpendicular to the first horizontal axis, the elongated sliding mounting hole vertically penetrates through all the positioning grooves, and the sliding pushing seat is slidably arranged in the elongated sliding mounting hole.

7. The supporting type adjustable supporting device as claimed in claim 6, wherein the sliding pushing seat is provided with pushing grooves which are in one-to-one correspondence with the positioning grooves, and the opening shapes of the pushing grooves and the corresponding positioning grooves are the same;

a locking position and a releasing position are sequentially distributed in the sliding direction of the sliding pushing seat along the direction away from the fixed mounting seat, when the sliding pushing seat moves to the locking position, the sliding pushing seat is abutted against one end of the long sliding mounting hole, which is close to the fixed mounting seat, and the pushing grooves are in one-to-one corresponding opposite communication with the positioning grooves; when the sliding pushing seat moves to the unlocking position, the pushing groove and the positioning groove are staggered.

8. The support-type adjustable support device of claim 7, wherein the lock release operating assembly further comprises: the elastic piece is abutted between the sliding pushing seat and the positioning clamping seat and drives the sliding pushing seat to move to the locking position constantly; when the upper end of the lock releasing operation piece drives the linkage swing rod to swing downwards, the linkage swing rod drives the sliding pushing seat to move to the lock releasing position.

9. The supporting type adjustable supporting device as claimed in claim 7, wherein an accommodating groove is formed on the positioning clamping seat, the positioning groove and the long sliding mounting hole are both arranged at the bottom of the accommodating groove, and the top surface of the sliding pushing seat is flush with the bottom surface of the accommodating groove.

10. The support-type adjustable support device according to any one of claims 4 to 9, wherein a lock release operation portion is further formed at a lower end of the lock release operation member, and the lock release operation portion is located below the fixed mount.