CN214658854U

CN214658854U - Supporting device

Info

Publication number: CN214658854U
Application number: CN202121116193.9U
Authority: CN
Inventors: 谢矗; 王国刚; 曹朕
Original assignee: Guangdong Boxin Engineering Service Co ltd
Current assignee: Guangdong Boxin Engineering Service Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-11-09
Anticipated expiration: 2031-05-24

Abstract

The utility model discloses a supporting device belongs to construction machinery technical field. The adjusting assembly is arranged in the supporting sleeve and comprises a main adjusting piece and a follow-up adjusting piece which are arranged along the axial direction of the supporting sleeve, the main adjusting piece is fixedly connected with the supporting sleeve, central holes are formed in the main adjusting piece and the follow-up adjusting piece, and the inner wall of each central hole comprises a smooth shaft section and a threaded section which are adjacent along the circumferential direction; one end of the special-shaped screw rod penetrates through the two central holes, and the outer wall of the special-shaped screw rod is provided with an outer smooth shaft section and an outer thread section which are adjacent along the circumferential direction; the connecting piece is connected with the main adjusting piece and the follow-up adjusting piece, and enables the main adjusting piece to rotate relative to the follow-up adjusting piece and drive the follow-up adjusting piece to rotate synchronously, so that the external thread section can be selectively matched with the thread section of at least one of the main adjusting piece and the follow-up adjusting piece or matched with the two optical axis sections. The supporting device can shorten the adjusting time, improve the installation efficiency and reduce the labor intensity.

Description

Supporting device

Technical Field

The utility model relates to a construction machinery technical field especially relates to a strutting arrangement.

Background

The aluminum template adjusting support at the present stage adopts two forms, one is a combined mode of using a steel pipe and an oil jacking, the aluminum template adjusting support needs to be separately packaged and stored during transportation and management, one part is easy to be lost, so that the use function is lost, and a separating part is arranged between the oil jacking and the steel pipe, the mounting fit clearance between the oil jacking and the steel pipe is large, so that the stress performance of the material cannot be fully exerted; the other type is combined type adjusting support, a nut of an oil top support is welded on a steel pipe, so that the oil top support and the steel pipe can be guaranteed to be used simultaneously, but when a worker installs the oil top, screwing in and screwing out is long in time, and the installation efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a strutting arrangement, this strutting arrangement can shorten when adjusting, has improved the installation effectiveness, has reduced intensity of labour.

To achieve the purpose, the utility model adopts the following technical proposal:

a support device, comprising:

one end of the supporting sleeve is used for supporting a to-be-supported part;

the adjusting assembly is arranged in the supporting sleeve and comprises a main adjusting piece and a follow-up adjusting piece which are arranged along the axial direction of the supporting sleeve, the main adjusting piece is fixedly connected with the supporting sleeve, central holes are formed in the main adjusting piece and the follow-up adjusting piece, and the inner wall of each central hole comprises a smooth shaft section and a threaded section which are adjacent along the circumferential direction;

one end of the special-shaped screw rod penetrates through the two central holes, and an outer smooth shaft section and an outer thread section which are adjacent along the circumferential direction are arranged on the outer wall of the special-shaped screw rod;

and the connecting piece is connected with the main adjusting piece and the follow-up adjusting piece, and enables the main adjusting piece to rotate relative to the follow-up adjusting piece and drives the follow-up adjusting piece to synchronously rotate, so that the external thread section can be selectively matched with the thread section of at least one of the main adjusting piece and the follow-up adjusting piece or matched with the two optical axis sections.

When the supporting sleeve is rotated to enable the main adjusting piece to rotate to a first preset position according to a first rotation direction, the external thread section is staggered with the two thread sections at the same time, the supporting sleeve can slide up and down relative to the special-shaped screw rod, and when the supporting sleeve is rotated to enable the main adjusting piece to continue to rotate according to the first rotation direction, the main adjusting piece can be driven to rotate together; when the supporting sleeve is rotated to enable the main adjusting piece to rotate to a second preset position according to a second rotation direction, the two thread sections are staggered and can be matched and connected with the external thread section, the supporting sleeve can rotate up and down relative to the special-shaped screw rod, and when the supporting sleeve is rotated to enable the main adjusting piece to continue to rotate according to the second rotation direction, the main adjusting piece can be driven to rotate together. The main adjusting part rotates relative to the follow-up adjusting part, so that the supporting sleeve can be switched between two motion modes of up-and-down sliding motion and up-and-down rotating motion relative to the special-shaped screw rod, the adjusting time is shortened, the mounting efficiency of the aluminum membrane plate is improved, and the labor intensity is reduced; the main adjusting piece drives the follow-up adjusting piece to rotate together through the connecting piece.

As an optimal technical scheme of the supporting device, a spirally extending sliding groove is formed in the outer wall of the follow-up adjusting piece, one end of the connecting piece is connected with the main adjusting piece, and the other end of the connecting piece is in sliding fit with the sliding groove. The purpose that the main adjusting piece rotates relative to the follow-up adjusting piece and the main adjusting piece drives the follow-up adjusting piece to rotate together is achieved.

As an optimal technical scheme of the supporting device, a threaded through hole is formed in the side wall of the main adjusting piece, the connecting piece is a locking screw, the locking screw is in threaded connection with the threaded through hole, and the end part of the locking screw is in sliding connection with the inside of the sliding groove. The locking screw and the threaded through hole are simple in matching mode and easy to realize.

As a preferred technical scheme of a strutting arrangement, the quantity of follow-up regulating part is a plurality of, and is a plurality of the connecting piece is arranged along the circumference of main regulating part, the spout with the same and the one-to-one correspondence setting of connecting piece. The stability that main adjusting part and follow-up regulating part cooperation are connected has been improved to a plurality of follow-up regulating parts.

As a preferable technical solution of the supporting device, a follow-up chamber is provided in the main adjusting member, and the follow-up adjusting member is provided in the follow-up chamber. The working environment of the second thread section on the follow-up adjusting piece is improved, and the maintenance work is reduced.

As a preferable technical scheme of the supporting device, the thread sections are provided with at least two and are arranged along the axis center symmetry of the central hole; the external thread section is provided with at least two and is arranged along the axis centrosymmetry of the heterotypic screw rod. In the process of completely staggering the thread section on the main adjusting part and the thread section on the follow-up adjusting part, compared with the thread section arranged on one side, the thread section arranged in the central symmetry mode reduces the rotation angle when the thread sections are completely staggered; the central symmetry of the external thread section improves the stability of the matching of the external thread section and the thread section.

As a preferred technical scheme of the supporting device, the supporting device further comprises an anti-falling baffle, the anti-falling baffle is connected to the end part, extending into the supporting sleeve, of the special-shaped screw rod, and the anti-falling baffle can be abutted to the end face of the adjusting assembly. The support sleeve is prevented from being separated from the special-shaped screw, the use safety is improved, and the operability is simplified.

As a preferable technical solution of the supporting device, the supporting device further comprises a reinforcing sleeve connected to an end of the supporting sleeve supporting the member to be supported. The support sleeve is prevented from being deformed and damaged in the using process.

As a preferable technical scheme of the supporting device, the external thread section on the special-shaped screw is a left-hand thread or a right-hand thread. The applicability of the supporting device is improved.

As a preferable technical solution of the supporting device, the supporting device further includes a gasket, and the gasket is connected to an end portion of the profiled screw rod located outside the supporting sleeve. And the auxiliary operator installs and adjusts the supporting device.

The utility model provides a supporting device, which comprises a supporting sleeve, an adjusting component, a special-shaped screw rod and a connecting piece, wherein when the supporting sleeve is rotated to enable a main adjusting piece to rotate to a first preset position according to a first rotation direction, an external thread section is simultaneously staggered with thread sections on the main adjusting piece and a follow-up adjusting piece, the supporting sleeve can slide up and down relative to the special-shaped screw rod, and when the supporting sleeve is rotated to enable the main adjusting piece to continue to rotate according to the first rotation direction, the follow-up adjusting piece can be driven to rotate together; when the supporting sleeve is rotated to enable the main adjusting piece to rotate to a second preset position according to a second rotation direction, the thread sections on the main adjusting piece and the follow-up adjusting piece are staggered and can be matched and connected with the external thread section, the supporting sleeve can rotate up and down relative to the special-shaped screw rod, and when the supporting sleeve is rotated to enable the main adjusting piece to continue to rotate according to the second rotation direction, the follow-up adjusting piece can be driven to rotate together. The main adjusting part rotates relative to the follow-up adjusting part, so that the supporting sleeve can be switched between two motion modes of up-and-down sliding motion and up-and-down rotating motion relative to the special-shaped screw rod, the adjusting time is shortened, the mounting efficiency of the aluminum membrane plate is improved, and the labor intensity is reduced; the main adjusting piece drives the follow-up adjusting piece to rotate together through the connecting piece.

Drawings

Fig. 1 is a schematic structural diagram of a supporting device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a main adjusting member according to an embodiment of the present invention;

FIG. 3 is a top cross-sectional view of a main adjuster and a connector according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a servo adjusting member according to an embodiment of the present invention;

FIG. 5 is a top cross-sectional view of a follower adjustment provided by an embodiment of the present invention;

fig. 6 is a top cross-sectional view of a special-shaped screw according to an embodiment of the present invention;

fig. 7 is a view from direction a of fig. 6 according to an embodiment of the present invention;

fig. 8 is a view of the direction B in fig. 6 according to the embodiment of the present invention.

Reference numerals:

1. a support sleeve; 2. a main adjusting member; 21. a first thread segment; 22. a follower chamber; 23. a threaded through hole; 3. a follow-up adjustment member; 31. a second thread segment; 32. a chute; 4. a special-shaped screw; 41. an external threaded section; 5. a connecting member; 6. an anti-drop baffle plate; 7. a reinforcing sleeve; 8. and (7) a gasket.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 to 8, the present embodiment provides a supporting device, which includes a supporting sleeve 1, an adjusting assembly, a profiled screw rod 4 and a connecting piece 5, wherein one end of the supporting sleeve 1 is used for supporting a member to be supported; the adjusting assembly is arranged in the supporting sleeve 1 and comprises a main adjusting part 2 and a follow-up adjusting part 3 which are arranged along the axial direction of the supporting sleeve 1, the main adjusting part 2 is fixedly connected with the supporting sleeve 1, the follow-up adjusting part 3 can rotate relative to the main adjusting part 2, central holes are formed in the main adjusting part 2 and the follow-up adjusting part 3, and the inner wall of each central hole comprises a smooth shaft section and a threaded section which are adjacent along the circumferential direction; specifically, a first central hole is formed in the main adjusting piece 2, a first optical axis section and a first thread section 21 which are adjacent along the circumferential direction are arranged on the inner wall of the first central hole, a second central hole is formed in the follow-up adjusting piece 3, and a second optical axis section and a second thread section 31 which are adjacent along the circumferential direction are arranged on the inner wall of the second central hole; one end of the special-shaped screw rod 4 penetrates through the first central hole and the second central hole, and an outer smooth shaft section and an outer threaded section 41 which are adjacent along the circumferential direction are arranged on the outer wall of the special-shaped screw rod 4; and the connecting piece 5 is connected with the main adjusting piece 2 and the follow-up adjusting piece 3, and enables the main adjusting piece 2 to rotate relative to the follow-up adjusting piece 3 and drives the follow-up adjusting piece 3 to synchronously rotate, so that the external thread section 41 can be selectively matched with the thread section of at least one of the main adjusting piece 2 and the follow-up adjusting piece 3 or matched with the two optical axis sections.

When the support sleeve 1 is rotated to enable the main adjusting piece 2 to rotate to a first preset position according to a first rotation direction, the external thread section 41 is staggered with the first thread section 21 and the second thread section 31 at the same time, the support sleeve 1 can slide up and down relative to the special-shaped screw rod 4, and when the support sleeve 1 is rotated to enable the main adjusting piece 2 to continue to rotate according to the first rotation direction, the follow-up adjusting piece 3 can be driven to rotate together; when the supporting sleeve 1 is rotated to enable the main adjusting part 2 to rotate to a second preset position according to a second rotation direction, the first thread section 21 and the second thread section 31 are staggered and can be matched and connected with the external thread section 41, the supporting sleeve 1 can rotate up and down relative to the special-shaped screw rod 4, and when the supporting sleeve 1 is rotated to enable the main adjusting part 2 to continue to rotate according to the second rotation direction, the follow-up adjusting part 3 can be driven to rotate together. The main adjusting piece 2 rotates relative to the follow-up adjusting piece 3, so that the support sleeve 1 is switched between an up-and-down sliding motion mode and an up-and-down rotating motion mode relative to the special-shaped screw rod 4, the adjusting time is shortened, the mounting efficiency of the aluminum membrane plate is improved, and the labor intensity is reduced; the main adjusting piece 2 drives the follow-up adjusting piece 3 to rotate together through the connecting piece 5. It should be noted that, when the first rotation direction is clockwise, the second rotation direction is counterclockwise; when the first rotation direction is counterclockwise, the second rotation direction is clockwise, that is, the first rotation direction and the second rotation direction are always opposite rotation directions.

It should be noted that if only the main adjusting member 2 is provided, but the follow-up adjusting member 3 is not provided, which may cause the external thread section 41 on the shaped screw rod 4 to be unable to accurately slide into the first thread section 21, so that the rotational movement of the support sleeve 1 is not smooth, in the present embodiment, by providing the follow-up adjusting member 3, during the up-and-down rotational movement of the support sleeve 1 relative to the shaped screw rod 4, the external thread section 41 on the shaped screw rod 4 can be constantly engaged with the first thread section 21 and/or the second thread section 31, for example, when the external thread section 41 slides out from one of the first thread section 21 and the second thread section 31, the other thread section can be simultaneously slid in, so that the smoothness of the rotational movement of the support sleeve 1 is improved.

In the present embodiment, the threaded segments are provided with at least two and are arranged in central symmetry along the axis of the central hole, that is, the first threaded segment 21 is provided with at least two and is arranged in central symmetry along the axis of the first central hole, and the second threaded segment 31 is provided with at least two and is arranged in central symmetry along the axis of the second central hole; the external thread section 41 is provided with at least two and is arranged along the axis center symmetry of the special-shaped screw rod 4. In the process of completely staggering the first thread section 21 and the second thread section 31, compared with the thread section arranged on one side, the rotation angle of the first thread section 21 and the second thread section 31 which are arranged in a centrosymmetric manner is reduced when the first thread section and the second thread section are completely staggered; the central symmetry of the external thread section 41 improves the stability of the external thread section 41 in cooperation with the first thread segments 21 and the second thread segments 31.

Preferably, the sum of the central angles of the first thread segments 21 and the second thread segments 31 is not less than 360 °. Because the sum of the central angles of the first thread section 21 and the second thread section 31 is not less than 360 degrees, when the first thread section 21 and the second thread section 31 are completely staggered, the external thread section 41 on the special-shaped screw rod 4 can be matched with the first thread section 21 and/or the second thread section 31 to rotate all the time during the process that the support sleeve 1 rotates relative to the special-shaped screw rod 4.

Preferably, in this embodiment, the central angles of the first thread segments 21 and the second thread segments 31 are the same.

Preferably, as shown in fig. 2, a follow-up chamber 22 is arranged in the main adjusting part 2, a first thread section 21 is arranged at one end of the main adjusting part 2 and used for being matched with the special-shaped screw rod 4, a follow-up chamber 22 is arranged at the other end of the main adjusting part 2, and the follow-up adjusting part 3 is installed in the main adjusting part 2 from the end provided with the follow-up chamber 22, so that the working environment of a second thread section 31 on the follow-up adjusting part 3 is improved, and the maintenance work is reduced. Specifically, be provided with the spout 32 that the spiral extends on the outer wall of follow-up regulating part 3, connecting piece 5 one end is connected on main adjusting part 2, other end sliding connection in spout 32, makes main adjusting part 2 and follow-up regulating part 3 no longer break away from, and the one end of spout 32 is first preset position, and the other end is the second preset position, has realized that main adjusting part 2 is rotatory and main adjusting part 2 drives the purpose of follow-up regulating part 3 co-rotation relatively follow-up regulating part 3.

Preferably, as shown in fig. 2, the side wall of the main adjusting member 2 is provided with a threaded through hole 23, the connecting member 5 is a locking screw, the locking screw is in threaded connection with the threaded through hole 23, and the end part of the locking screw is slidably connected with the sliding groove 32, so that the matching manner of the locking screw and the threaded through hole 23 is simple and easy to implement. Further preferably, the number of the connecting members 5 is multiple, the connecting members 5 are arranged along the circumferential direction of the main adjusting member 2, and the sliding grooves 32 are the same as the connecting members 5 in number and are arranged in one-to-one correspondence. The plurality of connecting pieces 5 improve the stability of the fit connection of the main adjuster 2 and the follower adjuster 3. In the present embodiment, the number of the connecting members 5 is four. Preferably, in this embodiment, the corresponding central angle of the sliding slot 32 is 75 °, and in other embodiments, other angles may be selected to avoid failure of the support device due to vibration or the like during use.

In other embodiments, the main adjusting member 2 is provided with an arc-shaped groove, the connecting member 5 is a sliding block, the sliding block is fixed on the follow-up adjusting member 3, the sliding block is slidably connected in the arc-shaped groove, one end of the arc-shaped groove is a first preset position, and the other end of the arc-shaped groove is a second preset position.

Preferably, as shown in fig. 1, the supporting device further includes an anti-dropping baffle 6, the anti-dropping baffle 6 is connected to an end portion of the profiled screw 4 extending into the supporting sleeve 1, the anti-dropping baffle 6 can abut against an end surface of the main adjusting part 2 or the follow-up adjusting part 3, the supporting sleeve 1 is prevented from being separated from the profiled screw 4, and the use safety is improved and the operability is simplified. In the present embodiment, the retaining damper 6 can abut against the end surface of the main adjuster 2. It should be noted that the anti-dropping baffle 6 can be fixed after the special-shaped screw rod 4 extends out of one end of the support sleeve 1 far away from the adjusting assembly.

Preferably, as shown in fig. 1, the supporting device further comprises a reinforcing sleeve 7, and the reinforcing sleeve 7 is connected to the end of the supporting sleeve 1 supporting the member to be supported, so as to prevent the supporting sleeve 1 from being deformed and damaged during use.

Preferably, the thread on the special-shaped screw rod 4 is a left-handed thread or a right-handed thread, so that the applicability of the supporting device is improved.

Preferably, as shown in fig. 1, the support device further comprises a spacer 8, and the spacer 8 is connected to the end of the profiled screw rod 4 outside the support sleeve 1 to assist the operator in installing and adjusting the support device.

The matching mode of the main adjusting part 2 and the follow-up adjusting part 3 in the supporting device provided by the embodiment can be applied to supporting the aluminum template in the vertical direction and can also be expanded to the inclined support in the aluminum template industry. The matching mode of the main adjusting part 2 and the follow-up adjusting part 3 in the embodiment is suitable for one-way adjustment in the embodiment and two-way adjustment in other embodiments, the two-way adjustment means that the two ends of the special-shaped screw rod 4 are both sleeved with the supporting sleeves 1, and the main adjusting part 2 and the follow-up adjusting part 3 are arranged in the two supporting sleeves 1, so that the two-way adjustment is realized.

The mounting and dismounting processes of the supporting device in the embodiment are as follows:

the installation process comprises the following steps:

firstly, rotating the support sleeve 1 and driving the main adjusting part 2 to rotate, so that an external thread section 41 on the special-shaped screw rod 4 is matched with a first optical axis section of the main adjusting part 2 and a second optical axis section of the follow-up adjusting part 3 simultaneously, the special-shaped screw rod 4 can smoothly slide up and down in the main adjusting part 2 and the follow-up adjusting part 3, and the anti-falling baffle 6 limits the special-shaped screw rod 4 to slide out of the support sleeve 1;

secondly, placing the supporting device on a position of the aluminum template needing to be supported, wherein the upper end of the supporting device is aligned to the short extending pipe on the aluminum template;

thirdly, an operator steps on the bottom gasket 8 with feet, and pulls the support sleeve 1 with hands at the same time, so that the support sleeve 1 extends along the support length direction, and the short pipe on the aluminum template is inserted into the support sleeve 1 (the reinforcing sleeve 7 prevents the support sleeve 1 from deforming and damaging in the using process);

fourthly, the support sleeve 1 is rotated to drive the main adjusting part 2 to rotate, so that the first thread section 21 of the main adjusting part 2 is ensured to be screwed into the external thread section 41 of the special-shaped screw rod 4, and meanwhile, the connecting part 5 slides in the sliding groove 32;

fifthly, moving the position of the bottom gasket 8 to enable the special-shaped screw rod 4 to be vertical;

sixthly, fixing the bottom gasket 8, continuing to rotate the support sleeve 1, driving the follow-up adjusting piece 3 by virtue of the connecting piece 5 after the main adjusting piece 2 rotates to a second preset position, so that the second thread section 31 of the follow-up adjusting piece 3 is screwed into the external thread section 41 of the special-shaped screw rod 4 to form the combined action of the main adjusting piece 2 and the follow-up adjusting piece 3, and supporting the support sleeve 1 to tightly push against the stress surface at the lower part of the aluminum template, thereby completing the installation process.

The disassembling process comprises the following steps:

the first step is as follows: the supporting sleeve 1 is rotated reversely, so that the main adjusting part 2 rotates reversely, and the connecting part 5 slides to a first preset position in the sliding groove 32 (meanwhile, the hole patterns of the main adjusting part 2 and the follow-up adjusting part 3 are overlapped);

and secondly, continuously rotating the support sleeve 1 to enable the hole patterns of the main adjusting part 2 and the follow-up adjusting part 3 to be superposed with the shape of the special-shaped screw rod 4, wherein the external thread section 41 on the special-shaped screw rod 4 is simultaneously staggered with the first thread section 21 on the main adjusting part 2 and the second thread section 31 on the follow-up adjusting part 3, and the support sleeve 1, the main adjusting part 2 and the follow-up adjusting part 3 slide to the bottom along the special-shaped screw rod 4 to finish the dismounting.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A support device, comprising:

one end of the supporting sleeve (1) is used for supporting a piece to be supported;

the adjusting assembly is arranged in the supporting sleeve (1) and comprises a main adjusting piece (2) and a follow-up adjusting piece (3) which are arranged along the axial direction of the supporting sleeve (1), the main adjusting piece (2) is fixedly connected with the supporting sleeve (1), central holes are formed in the main adjusting piece (2) and the follow-up adjusting piece (3), and the inner wall of each central hole comprises a smooth shaft section and a threaded section which are adjacent along the circumferential direction;

one end of the special-shaped screw rod (4) penetrates through the two central holes, and an outer smooth shaft section and an outer thread section (41) which are adjacent along the circumferential direction are arranged on the outer wall of the special-shaped screw rod (4);

the connecting piece (5) is connected the main adjusting piece (2) with the follow-up adjusting piece (3), and makes the main adjusting piece (2) can be relative the follow-up adjusting piece (3) rotates and drives the follow-up adjusting piece (3) rotates synchronously, so that the external thread section (41) can be selectively matched with the main adjusting piece (2) and at least one of the follow-up adjusting piece (3) in the thread section or matched with the two optical axis sections.

2. The supporting device as claimed in claim 1, characterized in that the outer wall of the follow-up regulating member (3) is provided with a spirally extending sliding groove (32), and one end of the connecting member (5) is connected with the main regulating member (2) and the other end is in sliding fit with the sliding groove (32).

3. The supporting device as claimed in claim 2, characterized in that the main adjusting member (2) has a threaded through hole (23) formed in a side wall thereof, and the connecting member (5) is a locking screw which is threaded into the threaded through hole (23) and has an end portion slidably connected into the sliding groove (32).

4. The supporting device as claimed in claim 2, characterized in that the number of the connecting members (5) is multiple, a plurality of the connecting members (5) are arranged along the circumference of the main adjusting member (2), and the sliding grooves (32) are the same as the number of the connecting members (5) and are arranged in a one-to-one correspondence.

5. Support device according to claim 1, characterized in that a following chamber (22) is provided in the main adjustment member (2), the following adjustment member (3) being provided in the following chamber (22).

6. The support device of claim 1, wherein the threaded segments are provided in at least two and are arranged centrally symmetrically along the axis of the central bore; the external thread sections (41) are at least two and are arranged along the axis center symmetry of the special-shaped screw rod (4).

7. The supporting device according to any one of claims 1 to 6, characterized in that the supporting device further comprises a retaining baffle (6), the retaining baffle (6) is connected to the end of the profiled screw (4) extending into the supporting sleeve (1), and the retaining baffle (6) can abut against the end face of the adjusting assembly.

8. A support device as claimed in any one of claims 1 to 6, characterized in that the support device further comprises a reinforcing sleeve (7), the reinforcing sleeve (7) being connected to the end of the support sleeve (1) supporting the member to be supported.

9. The support device according to any one of claims 1 to 6, wherein the external thread section (41) on the profiled screw (4) is a left-hand thread or a right-hand thread.

10. The support device according to any one of claims 1 to 6, characterized in that it further comprises a spacer (8), said spacer (8) being connected to the end of said profiled screw (4) located outside said support sleeve (1).