CN219734937U

CN219734937U - Mounting rack for computer case

Info

Publication number: CN219734937U
Application number: CN202320400144.0U
Authority: CN
Inventors: 王东升; 周国文
Original assignee: Xian Chaoyue Shentai Information Technology Co Ltd
Current assignee: Xian Chaoyue Shentai Information Technology Co Ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-09-22
Anticipated expiration: 2033-03-06

Abstract

The utility model relates to the technical field of computer accessories, and discloses a mounting rack for a computer case, which comprises a clamping part and a mounting part, wherein the clamping part comprises a clamping base for clamping a tabletop; the installation department liftable is installed in clamping part top, and the installation department includes radiator fan and is used for placing the mount pad of quick-witted case, and the mount pad includes limit structure, and limit structure's bottom sets up the louvre, and radiator fan sets up at limit structure's top, makes the air follow down upward movement. The mounting part of this disclosure is mainly used bears the quick-witted case of computer, and clamping part is mainly used fixes the mounting bracket on the desktop, adopts this disclosure can place the computer on the desktop, reduces debris entering machine case to and the machine case occupies to the desktop. The heat dissipation holes are matched with the heat dissipation fans, so that the heat dissipation of the chassis can be facilitated.

Description

Mounting rack for computer case

Technical Field

The utility model relates to the technical field of computer accessories, in particular to a mounting rack for a computer case.

Background

Computers are commonly used electronic devices in people's daily life. The internal structure of the existing computer is complex and compact, and in order to prevent the internal temperature of the computer from being too high, a fan is usually additionally arranged in the computer to assist in heat dissipation. Based on the principle that hot air can rise, a common computer heat dissipation air duct is usually arranged to be air inlet at the bottom of a case and air outlet at the top of the case.

Most computers are placed on the ground, and in this case, dust, hair or other small particles on the ground are easily sucked into the case, so that dust accumulation in the case is caused, and the performance and stability of the computer are affected.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a mounting rack for a computer case, so as to reduce dust accumulation in the case and assist the heat dissipation of the case.

In some embodiments, the mounting rack for the computer chassis includes a clamping portion and a mounting portion, the clamping portion including a clamping base for clamping a desktop; the installation department liftable is installed in clamping part top, and the installation department includes radiator fan and is used for placing the mount pad of quick-witted case, and the mount pad includes limit structure, and limit structure's bottom sets up the louvre, and radiator fan sets up at limit structure's top, makes the air follow down upward movement.

Optionally, the limiting structure comprises a first fixing plate, a partition plate and a second fixing plate, the first fixing plate is vertically arranged, the height of the first fixing plate is larger than that of the case, the radiator fan is arranged on the upper portion of the first fixing plate, and the setting height of the radiator fan is larger than that of the case; the first end of the partition board is connected with the first fixed plate, and the partition board is horizontally arranged and used for bearing the chassis; the second fixed plate is connected with the second end of baffle, and the vertical setting of second fixed plate, first fixed plate are parallel to each other with the second fixed plate.

Optionally, the limiting structure further comprises a spring, a movable plate and a flexible pad, wherein the first end of the spring is connected with one surface, close to the first fixed plate, of the second fixed plate; the movable plate is positioned between the first fixed plate and the second fixed plate, the movable plate is connected with the second end of the spring, the movable plate is vertically arranged, and the movable plate is matched with the first fixed plate and the second fixed plate to limit the side part of the case; the flexible pad is connected with one side of the movable plate, which is close to the second fixed plate.

Optionally, the limit structure further comprises a shockproof rubber pad, the shockproof rubber pad is arranged on the upper surface of the partition board, the shockproof rubber pad and the partition board are provided with heat dissipation holes penetrating through from top to bottom, and the arrangement positions of the heat dissipation holes are matched with the placement positions of the case.

Optionally, the limit structure further comprises a storage plate, the storage plate is connected with the top of the first fixing plate, and the storage plate is horizontally arranged.

Optionally, the mounting seat further comprises a bottom plate, a magnetic structure and a lamp panel, and the bottom plate is positioned at the lower part of the limiting structure; the magnetic structure comprises a plurality of magnetic strips, the magnetic strips are respectively arranged on the front sides of the bottom plate and the limiting structure, the lamp panel is connected with the bottom plate through the magnetic structure, and the lamp panel is electrically connected with the chassis.

Optionally, the mounting bracket still includes lifting unit, and lifting unit is connected with the bottom of mount pad, and lifting unit includes the telescopic link, and the telescopic link includes dead lever and movable rod, and the dead lever is connected with the movable rod, and the top of movable rod is connected with the bottom of mount pad, and lifting unit passes through the mount pad and drives quick-witted case lift.

Optionally, the bottom plate of the mounting seat is provided with a strip-shaped sliding hole, and the movable rod passes through the sliding hole and is movably connected with the mounting seat; the middle upper part of the movable rod is horizontally provided with a pad table which is abutted against the lower surface of the mounting seat; the end of the movable rod is in threaded connection with a nut, the nut is abutted to the upper surface of the bottom plate, and the outer diameter of the nut is larger than the width of the sliding hole.

Optionally, the lifting part further comprises a corrugated pipe and an anti-slip pad, and the corrugated pipe is sleeved outside the telescopic rod; and/or the anti-slip pad is arranged on the upper surface of the pad table.

Optionally, the mounting bracket still includes rotation portion, and rotation portion includes pivot and backup pad, and the backup pad level sets up, and the first end and the centre gripping base of pivot are connected, and the second end is connected with the backup pad, and lifting unit installs in the backup pad.

The mounting rack for the computer case provided by the embodiment of the disclosure can realize the following technical effects:

the utility model discloses a mounting portion mainly used bears the quick-witted case of computer, and clamping part mainly used is fixed the mounting bracket on the desktop, adopts this disclosure to be used for the mounting bracket of computer machine case can place the computer on the desktop, reduces debris, especially ground dust gets into the quick-witted case through the heat dissipation wind channel.

Because the clamping part of the mounting frame is connected with the mounting part in a lifting manner, the clamping part is used as a main contact area of the mounting frame and the desktop, and the chassis is not directly contacted with the desktop, so that the occupation of the desktop can be reduced by adjusting the area of the clamping part.

The limit structure is used for limiting the case, the bottom of the limit structure is provided with the radiating holes, air can conveniently enter from the bottom of the limit structure and is matched with the radiating fan positioned at the top of the limit structure, the radiating air channel of the case is air inlet at the bottom of the case, when the air outlet at the top of the case is structured, the radiating fan can blow out hot air at the top of the case, the case is convenient to radiate, when the radiating air channel of the case is positioned at the rear side of the case, the radiating fan can drive air to enter from the radiating holes at the bottom of the limit structure and flow to the radiating fan along the side wall of the case, and the air flow at the side part of the case is enhanced so as to improve the radiating efficiency of the case.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the utility model.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic diagram of a mounting bracket for a computer chassis of the present disclosure;

FIG. 2 is a schematic structural view of another mounting bracket for a computer chassis of the present disclosure;

fig. 3 is a schematic structural view of a lifting portion of the present disclosure.

Reference numerals:

1. a bottom plate; 2. a movable rod; 3. a fixed rod; 4. a telescopic rod; 5. clamping a base; 6. a support plate; 7. a lifting control box; 8. a tabletop; 9. a second fixing plate; 10. a first fixing plate; 11. a partition plate; 12. a shockproof rubber pad; 13. a lamp panel; 14. a spring; 15. a movable plate; 16. a flexible pad; 17. a chassis; 18. a storage plate; 19. a heat radiation fan; 20. a bellows; 21. a pad table; 22. an anti-slip pad; 23. a screw cap; 24. a rotating shaft; 25. a magnetic stripe.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the azimuth or positional relationship shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," and "fixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in connection with fig. 1-3, embodiments of the present disclosure provide a mounting bracket for a computer chassis 17 that includes a clamping portion and a mounting portion.

The clamping portion comprises a clamping base 5 for clamping the table top 8.

The installation department liftable is installed in clamping part top, and the installation department includes radiator fan 19 and is used for placing the mount pad of quick-witted case 17, and the mount pad includes limit structure, and limit structure's bottom sets up the louvre, and radiator fan 19 sets up at limit structure's top, makes the air follow down upwards remove.

It can be appreciated that the mounting portion is mainly used for bearing the chassis 17 of the computer, the limiting structure is used for limiting the chassis 17, the clamping portion is mainly used for fixing the mounting frame on the desktop 8, the clamping portion of the mounting frame is connected with the mounting portion in a lifting manner, the clamping portion serves as a main contact area between the mounting frame and the desktop 8, the chassis 17 is not directly contacted with the desktop 8, and therefore the occupation of the desktop 8 can be reduced by adjusting the area of the clamping portion.

The mounting frame for the computer case 17 can be used for placing a computer on the desktop 8, so that sundries, especially ground dust, can be reduced, and the ground dust can enter the case 17 through the heat dissipation air duct. The bottom of limit structure sets up the louvre, can be convenient for air from limit structure bottom entering, with the radiator fan 19 cooperation that is located limit structure top, be convenient for dispel the heat to quick-witted case 17.

As an example, the clamping base 5 is a clamping plate structure, the tabletop 8 is clamped by two clamping plates, and the two clamping plates are fixed by bolts.

As another example, the heat dissipating fan 19 includes a USB connector for connection with the power source or the chassis 17.

Optionally, the limiting structure includes a first fixing plate 10, a partition 11 and a second fixing plate 9, where the first fixing plate 10 is vertically arranged, the height of the first fixing plate 10 is greater than that of the chassis 17, a cooling fan 19 is installed on the upper part of the first fixing plate 10, and the setting height of the cooling fan 19 is greater than that of the chassis 17; the first end of the partition plate 11 is connected with the first fixing plate 10, and the partition plate 11 is horizontally arranged and is used for bearing the chassis 17; the second fixing plate 9 is connected with the second end of the partition plate 11, the second fixing plate 9 is vertically arranged, and the first fixing plate 10 and the second fixing plate 9 are parallel to each other.

It can be understood that the cooling fan 19 is located at the upper side of the chassis 17, so when the cooling air channel of the chassis 17 is the structure that the bottom of the chassis 17 is air-fed and the top of the chassis 17 is air-fed, the cooling fan 19 can blow out the hot air at the top of the chassis 17, so that the chassis 17 can cool conveniently, when the cooling air channel of the chassis 17 is located at the rear side of the chassis 17, the cooling fan 19 can drive the air to enter from the cooling hole at the bottom of the limiting structure, and flow to the cooling fan 19 along the side wall of the chassis 17, so as to strengthen the air flow at the side of the chassis 17, and improve the cooling efficiency of the chassis 17.

Optionally, the limiting structure further comprises a spring 14, a movable plate 15 and a flexible pad 16, wherein a first end of the spring 14 is connected with one surface of the second fixed plate 9, which is close to the first fixed plate 10; the movable plate 15 is positioned between the first fixed plate 10 and the second fixed plate 9, the movable plate 15 is connected with the second end of the spring 14, the movable plate 15 is vertically arranged, and the movable plate 15 is matched with the first fixed plate 10 and the second fixed plate 9 to limit the side part of the case 17; the flexible pad 16 is connected to a side of the movable plate 15 adjacent to the second fixed plate 9.

It will be appreciated that the movable plate 15 may move laterally above the partition 11 by the spring 14, the movable plate 15 is not in contact with the partition 11, and the flexible pad 16 may be adhered to a surface of the movable plate 15 near the second fixed plate 9, so that the movable plate 15 contacts with a side surface of the chassis 17, so as to limit the chassis 17 conveniently. The use of springs 14 can facilitate accommodation of chassis 17 of different model specifications.

Optionally, the limiting structure further comprises a shockproof rubber pad 12, the shockproof rubber pad 12 is mounted on the upper surface of the partition plate 11, the shockproof rubber pad 12 and the partition plate 11 are provided with heat dissipation holes penetrating through the partition plate vertically, and the arrangement positions of the heat dissipation holes are matched with the placement positions of the chassis 17.

It will be appreciated that the vibration-proof rubber pad 12 can reduce vibration generated when the chassis 17 is operated, and the heat dissipation holes can help the chassis 17 dissipate heat.

Optionally, the limiting structure further includes a storage plate 18, where the storage plate 18 is connected to the top of the first fixing plate 10, and the storage plate 18 is horizontally disposed.

It will be appreciated that the storage plate 18 is located above the cabinet 17 and is capable of holding a number of smaller items, such as speakers, cameras, desk lamps, etc.

As an example, the first fixing plate 10 is provided with a through hole for embedding the heat radiation fan 19 at a position between the placement plate 18 and the top of the cabinet 17.

Optionally, the mounting seat further comprises a bottom plate 1, a magnetic structure and a lamp panel 13, wherein the bottom plate 1 is positioned at the lower part of the limiting structure; the magnetic structure comprises a plurality of magnetic strips 25, the magnetic strips 25 are respectively arranged on the front sides of the bottom plate 1 and the limiting structure, the lamp panel 13 is connected with the bottom plate 1 through the magnetic structure, and the lamp panel 13 is electrically connected with the case 17.

As an example, the side surfaces of the base plate 1 and the partition plate 11 are provided with side bars, and the magnetic stripe 25 attracts the light panel 13, and the light panel 13 may be an RGB light panel, which is connected to the motherboard in the chassis 17.

Optionally, the mounting bracket further comprises a lifting part, the lifting part is connected with the bottom of the mounting seat, the lifting part comprises a telescopic rod 4, the telescopic rod 4 comprises a fixed rod 3 and a movable rod 2, the fixed rod 3 is connected with the movable rod 2, the top of the movable rod 2 is connected with the bottom of the mounting seat, and the lifting part drives the chassis 17 to lift through the mounting seat.

As an example, two telescopic rods 4 are provided, two telescopic rods 4 are electric telescopic rods 4, and a lifting control box 7 matched with the electric lifting rods is arranged on a supporting plate 6 of a clamping base 5 or a rotating part.

Optionally, the bottom plate 1 of the mounting seat is provided with a strip-shaped sliding hole, and the movable rod 2 passes through the sliding hole and is movably connected with the mounting seat; a cushion table 21 is horizontally arranged at the middle upper part of the movable rod 2, and the cushion table 21 is abutted against the lower surface of the mounting seat; the end of the movable rod 2 is in threaded connection with a nut 23, the nut 23 is abutted against the upper surface of the bottom plate 1, and the outer diameter of the nut 23 is larger than the width of the sliding hole.

It is understood that the width W of the sliding hole is larger than the diameter D of the movable rod 2, and a movable gap of about 0.3cm is reserved in the sliding hole. The sliding holes are two, and the two movable rods 2 respectively penetrate into the sliding holes and extend into the mounting seats. The movable rod 2 is also welded with a pad 21, the upper end of the movable rod 2 is provided with a thread section, the thread section is connected with a nut 23 in a threaded manner, the outer diameter of the nut 23 is larger than the width of the sliding hole, and the nut 23 is positioned below the partition plate 11. The movable rod 2 is connected and fixed with the mounting seat through the matching of the pad 21 and the nut 23.

Optionally, the lifting part further comprises a corrugated pipe 20 and an anti-slip pad 22, and the corrugated pipe 20 is sleeved outside the telescopic rod 4; and/or the anti-slip pad 22 is provided on the upper surface of the pad table 21.

It will be appreciated that the pad 21 abuts against the lower surface of the base plate 1, and the anti-slip pad 22 is laid on the upper surface of the pad 21, so that the movable rod 2 and the mounting seat can be stably connected. The bellows 20 suit is outside telescopic link 4, and telescopic link 4 is when rising, and bellows 20 is tensile, and when telescopic link 4 descends, bellows 20 shrink, can make the mounting bracket whole comparatively pleasing to the eye like this.

Optionally, the mounting bracket further comprises a rotating part, the rotating part comprises a rotating shaft 24 and a supporting plate 6, the supporting plate 6 is horizontally arranged, a first end of the rotating shaft 24 is connected with the clamping base 5, a second end of the rotating shaft is connected with the supporting plate 6, and the lifting part is installed on the supporting plate 6.

It is understood that the upper end of the clamping base 5 is provided with a rotating shaft 24, one end of the rotating shaft 24 away from the clamping base 5 is welded with a supporting plate 6, and a lifting part is fixedly installed on the supporting plate 6. The fixed rod 3 of telescopic link 4 fixed mounting is in the upper surface of backup pad 6, and movable rod 2 is connected with the lower extreme of mount pad.

When the installation frame is installed, the tabletop 8 is clamped by the clamping base 5, and the clamping base 5 is locked by bolts. Then the movable rod 2 of the electric telescopic rod 4 is penetrated into the sliding hole, the relative position of the bottom plate 1 and the electric telescopic rod 4 is adjusted, the cushion table 21 supports the bottom plate 1 at the moment, and the locking nut 23 ensures that the movable ends of the bottom plate 1 and the electric telescopic rod 4 are fixed. The casing 17 is then placed on the partition 11, so that the movable plate 15 collides with the casing 17 by compressing the springs 14. Thereby improving the stability of the chassis 17 on the partition 11. In this state, by rotating the support plate 6, the casing 17 can be rotated conveniently by the rotation shaft 24. Through the operation, the problem of dust accumulation in the case 17 caused by the case 17 being placed on the ground can be avoided, the height and the horizontal position of the case 17 can be adjusted, the case 17 can be conveniently rotated, the case 17 can be adjusted with high degree of freedom, and meanwhile, the occupation of the case 17 to the space of the desktop 8 can be reduced.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A mount for a computer chassis, comprising:

the clamping part comprises a clamping base (5) for clamping the tabletop (8);

the installation department, liftable install clamping part top, the installation department includes radiator fan (19) and is used for placing the mount pad of quick-witted case (17), the mount pad includes limit structure, limit structure's bottom sets up the louvre, radiator fan (19) set up limit structure's top makes the air follow down upwards move.

2. The mount of claim 1, wherein the limit structure comprises:

the first fixing plate (10) is vertically arranged, the height of the first fixing plate (10) is larger than that of the case (17), the cooling fan (19) is arranged on the upper portion of the first fixing plate (10), and the setting height of the cooling fan (19) is larger than that of the case (17);

the first end of the partition plate (11) is connected with the first fixing plate (10), and the partition plate (11) is horizontally arranged and used for bearing the chassis (17);

the second fixing plate (9) is connected with the second end of the partition plate (11), the second fixing plate (9) is vertically arranged, and the first fixing plate (10) and the second fixing plate (9) are parallel to each other.

3. The mount of claim 2, wherein the limit structure further comprises:

a spring (14) with a first end connected with one side of the second fixed plate (9) close to the first fixed plate (10);

the movable plate (15) is positioned between the first fixed plate (10) and the second fixed plate (9), the movable plate (15) is connected with the second end of the spring (14), the movable plate (15) is vertically arranged, and the movable plate (15) is matched with the first fixed plate (10) and the second fixed plate (9) to limit the lateral part of the case (17);

and the flexible pad (16) is connected with one surface of the movable plate (15) close to the second fixed plate (9).

4. The mount of claim 2, wherein the limit structure further comprises:

the shock-proof rubber pad (12) is arranged on the upper surface of the partition board (11), the shock-proof rubber pad (12) and the partition board (11) are provided with heat dissipation holes penetrating through the partition board from top to bottom, and the arrangement positions of the heat dissipation holes are matched with the placement positions of the chassis (17).

5. The mount of claim 2, wherein the limit structure further comprises:

and the object placing plate (18) is connected with the top of the first fixing plate (10), and the object placing plate (18) is horizontally arranged.

6. The mount of claim 2, wherein the mount further comprises:

the bottom plate (1) is positioned at the lower part of the limiting structure;

the magnetic structure comprises a plurality of magnetic strips (25), and the magnetic strips (25) are respectively arranged on the front sides of the bottom plate (1) and the limiting structure;

the lamp panel (13) is connected with the bottom plate (1) through the magnetic structure, and the lamp panel (13) is electrically connected with the chassis (17).

7. The mount of any one of claims 1 to 6, further comprising:

lifting part, with the bottom of mount pad is connected, lifting part includes telescopic link (4), telescopic link (4) are including dead lever (3) and movable rod (2), dead lever (3) with movable rod (2) are connected, the top of movable rod (2) with the bottom of mount pad is connected, lifting part passes through the mount pad drives quick-witted case (17) go up and down.

8. The mount of claim 7, wherein the mounting bracket is configured to mount the mounting bracket,

the bottom plate (1) of the mounting seat is provided with a strip-shaped sliding hole, and the movable rod (2) passes through the sliding hole to be movably connected with the mounting seat;

a pad table (21) is horizontally arranged at the middle upper part of the movable rod (2), and the pad table (21) is abutted against the lower surface of the mounting seat;

the end of the movable rod (2) is in threaded connection with a nut (23), the nut (23) is abutted to the upper surface of the bottom plate (1), and the outer diameter of the nut (23) is larger than the width of the sliding hole.

9. The mount of claim 8, wherein the lift further comprises:

the corrugated pipe (20) is sleeved outside the telescopic rod (4); and/or the number of the groups of groups,

and an anti-slip pad (22) arranged on the upper surface of the pad table (21).

10. The mount of any one of claims 1 to 6, further comprising:

the rotating part comprises a rotating shaft (24) and a supporting plate (6), wherein the supporting plate (6) is horizontally arranged, a first end of the rotating shaft (24) is connected with the clamping base (5), a second end of the rotating shaft is connected with the supporting plate (6), and the lifting part is installed on the supporting plate (6).