WO2019052138A1

WO2019052138A1 - Dual-head bolt

Info

Publication number: WO2019052138A1
Application number: PCT/CN2018/079185
Authority: WO
Inventors: 郭彩祥
Original assignee: 郭彩祥
Priority date: 2017-09-15
Filing date: 2018-03-15
Publication date: 2019-03-21
Also published as: CN207145411U

Abstract

Provided is a dual-head bolt, which is configured to be between an electric motor (100) and a mounting platform (200), and comprises a bolt main body (300) and a lifting ring (400). The lifting ring (400) is fixedly arranged on the bolt main body (300), an upper surface of the lifting platform (200) is arranged with a plurality of first connection holes (210), one end of the electric motor (100) close to the mounting platform (200) is arranged with a plurality of second connection holes (110), and the plurality of first connection holes (210) correspond to the plurality of second connection holes (110) in a one-to-one manner. Two ends of the bolt main body (300) are respectively connected to the first connection holes (210) and the second connection holes (110), one end of the lifting ring (400) abuts against a bottom end of the electric motor (100), and the bolt main body (300) is configured to rotate relative to the first connection holes (210), so that the electric motor (100) is away from the mounting platform (200). The technical problem in the art that intake and exhaust valves of a piston type air compressor are difficult to be disassembled so as to easily cause device damage and personnel injury is alleviated.

Description

Stud

Cross-reference to related applications

The present application claims the priority of the Chinese Patent Application No. PCT-A No.

Technical field

The present disclosure relates to the field of spare parts technology, and more particularly to a stud bolt.

Background technique

In the thermal power sector, there is a piston air compressor, and the removal of its intake and exhaust valves is a tricky problem. The work area is small, there is no suitable special tool, and it is very time-consuming and labor-intensive when working.

At present, the removal of the intake and exhaust valves of the piston air compressor is very difficult. The removal of the valve cover can only be carried out with tools such as crowbars, hand hammers and flat shovel, which brings a lot of inconvenience to the daily maintenance and repair work, and it takes time and effort to disassemble and assemble. It is easy to cause damage to the equipment. If the operation is slightly inappropriate, the staff will be injured. Very low efficiency. Therefore, this will bring certain losses to the enterprise.

Therefore, how to efficiently disassemble the intake and exhaust valves of the piston air compressor has become an urgent problem to be solved by those skilled in the art. The information disclosed in this Background section is only intended to provide an understanding of the general background of the disclosure, and should not be construed as an admission

Summary of the invention

The purpose of the present disclosure includes providing a stud bolt to alleviate the difficulty in disassembling the intake and exhaust valves of the piston type air compressor existing in the prior art, which is liable to cause technical problems of equipment damage and personal injury.

The present disclosure provides a stud bolt configured to be disposed between a motor and a mounting table, including: a bolt body and a lifting ring;

The lifting ring is fixedly disposed on the bolt body, and the upper surface of the mounting table is provided with a plurality of first connecting holes, and the motor is disposed near the mounting table with a plurality of second connecting holes, a plurality of first connecting holes and a plurality of second The connection holes are arranged one by one;

Two ends of the bolt body are respectively connected with the first connecting hole and the second connecting hole, and one end of the lifting ring abuts against the bottom end of the motor, and the bolt body can rotate relative to the first connecting hole to move the motor away from the mounting table.

Further, the first connection hole and the second connection hole are all four, and the four second connection holes are evenly disposed on the end surface of the motor near the end of the mounting table.

Further, the two ends of the bolt body are provided with a connecting head, and the connecting head has a tapered cross section.

Further, the bolt body includes a first screw and a second screw;

The second screw is configured to be coupled to the second connection hole, the first screw is coupled to the first connection hole, and the first screw and the second screw are integrally provided.

Further, the first connection hole is a blind hole, and the second connection hole is a through hole.

Further, an internal thread matched with the first screw is disposed in the first connecting hole, and a hexagonal threaded hole is disposed at one end of the second screw away from the first screw.

Further, the outer surface of the first screw is arranged in a regular hexagon.

Further, the mounting base includes a first pedestal and a second pedestal, the first pedestal and the second pedestal are arranged in parallel, and the first pedestal is provided with two first connecting holes, and the two first connecting holes are symmetrically disposed on the first pedestal Both ends.

Further, a positioning bracket is disposed at one end of the motor adjacent to the first pedestal and the second pedestal, the positioning bracket is disposed between the first pedestal and the second pedestal, and two ends of the positioning bracket are respectively opposite to the inner sides of the first pedestal and the second pedestal Abut.

Further, the positioning frame comprises a bottom plate, two side plates and a telescopic mechanism;

The bottom plate is disposed at the bottom end of the motor, the two side plates are symmetrically disposed on two sides of the bottom plate, the telescopic mechanism is disposed between the two side plates, and the telescopic mechanism is configured to make the two side plates respectively correspond to the first pedestal and the second pedestal The inner side abuts.

Further, the outer surface of the first screw is a pentagon or an octagon.

Further, a galvanized layer is disposed on the outer surface of the bolt body and the lifting ring.

Further, a spacer is disposed between the lifting ring and the motor end.

Further, the lifting ring includes a first annular portion and a second annular portion, the first annular portion and the second annular portion are coaxially disposed, and the outer diameter of the first annular portion is smaller than that of the second annular portion The outer diameter is set at the end of the second annular portion near the mounting table.

Further, the mounting table is provided with four grooves, and the groove is coaxially disposed with the first connecting hole, and the groove depth of the groove is greater than or equal to the height of the lifting ring.

The present disclosure provides a stud bolt, configured to be disposed between a motor and a mounting table, comprising: a bolt body and a lifting ring; the lifting ring is fixedly disposed on the bolt body, and the upper surface of the mounting table is provided with a plurality of a first connecting hole, a plurality of second connecting holes are disposed at one end of the motor near the mounting table, and the plurality of first connecting holes are respectively arranged in one-to-one correspondence with the plurality of second connecting holes; the two ends of the bolt body are respectively connected with the first connecting hole and The second connecting hole is connected, and one end of the lifting ring abuts the bottom end of the motor, and the bolt body is configured to rotate relative to the first connecting hole to move the motor away from the mounting table. According to the above solution, a plurality of first connecting holes are disposed on the mounting platform, and a plurality of second connecting holes corresponding to the first connecting holes are disposed on the end surface of the motor near the mounting table, because the bolt body can be relatively first The connecting hole rotates, and one end of the lifting ring abuts the bottom end of the motor, and the rotation of the bolt body can move the motor away from or close to the mounting platform, thereby alleviating the removal of the intake and exhaust valves of the piston air compressor existing in the prior art. Difficulties, technical problems that can easily cause equipment damage and personal injury.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The figures are some embodiments of the present disclosure, and other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

1 is a schematic view of a stud bolt provided in connection with a motor and a mounting table according to an embodiment of the present disclosure;

2 is a top plan view of a stud bolt according to an embodiment of the present disclosure;

3 is a side view of the stud bolt provided in connection with the motor and the mounting table according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a positioning frame according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of the stud bolt provided by the embodiment of the present disclosure when it is lifted.

Icon: 100-motor; 200-mounting table; 300-bolt body; 400-lifting ring; 110-second connecting hole; 120-positioning bracket; 210-first connecting hole; 220-groove; 230-first Pedestal; 240 - second pedestal; 310 - second screw; 320 - first screw; 311 - hexagonal threaded hole; 315 - bottom plate; 316 - side plate; 317 - telescopic mechanism.

Detailed ways

The technical solutions of the present disclosure will be clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" appear. The orientation or positional relationship indicated by the figures is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present disclosure and the simplified description, and does not indicate or imply that the device or component referred to has a specific orientation. The construction and operation in a particular orientation are not to be construed as limiting the disclosure. Moreover, the appearances of the terms "first," "second," and "third" are merely used for descriptive purposes and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it should be noted that, unless explicitly stated and defined otherwise, the terms "installation", "connected", and "connected" should be understood broadly, for example, may be a fixed connection, or may be Removable connection, or integral connection; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements. The specific meanings of the above terms in the present disclosure can be understood in the specific circumstances by those skilled in the art.

FIG. 1 is a schematic view of a stud bolt provided in connection with a motor and a mounting table according to an embodiment of the present disclosure. As shown in Figure 1, the present disclosure provides a stud bolt, configured to be disposed between the motor 100 and the mounting table 200, including: a bolt body 300 and a lifting ring 400;

The lifting ring 400 is fixedly disposed on the nut body 300. The upper surface of the mounting table 200 is provided with a plurality of first connecting holes 210. The motor 100 is disposed near one end of the mounting table 200 with a plurality of second connecting holes 110, a plurality of first The connecting hole 210 is disposed in one-to-one correspondence with the plurality of second connecting holes 110; and the shapes of both ends of the bolt main body 300 are matched with the first connecting hole 210 and the second connecting hole 110, respectively. For example, the shape of both ends of the bolt main body 300 is a rectangular parallelepiped, and the shapes of the first connection hole 210 and the second connection hole 110 are also rectangular parallelepiped.

The two ends of the bolt body 300 are respectively inserted into the first connecting hole 210 and the second connecting hole 110, and one end of the lifting ring 400 abuts against the bottom end of the motor 100, and the bolt body 300 can rotate relative to the first connecting hole 210, so that The motor 100 is remote from the mounting table 200.

Wherein, the two ends of the bolt body 300 may be provided with a connecting head, the connecting head has a tapered cross section, and the tapered connecting head facilitates connecting the bolt main body 300 with the first connecting hole 210 and the second connecting hole 110.

A spacer may be disposed between the lift ring 400 and the motor 100 end.

The lifting ring 400 may include a first annular portion and a second annular portion, the first annular portion and the second annular portion being coaxially disposed, and the outer diameter of the first annular portion is smaller than the outer portion of the second annular portion The second annular portion is disposed near one end of the mounting table 200, and the gasket can be sleeved on the first annular portion.

Wherein, the outer surface of the bolt main body 300 and the lifting ring 400 is provided with a galvanized layer to improve the anticorrosion performance of the bolt main body 300 and the lifting ring 400.

The present disclosure provides a stud bolt disposed between the motor 100 and the mounting table 200, including: a bolt body 300 and a lifting ring 400; the lifting ring 400 is fixedly disposed on the nut body, and the mounting table 200 A plurality of first connecting holes 210 are disposed on the upper surface, and a plurality of second connecting holes 110 are disposed at one end of the motor 100 near the mounting base 200. The plurality of first connecting holes 210 are disposed in one-to-one correspondence with the plurality of second connecting holes 110; The two ends of the bolt body 300 are respectively connected to the first connecting hole 210 and the second connecting hole 110, and one end of the lifting ring 400 abuts against the bottom end of the motor 100, and the bolt body 300 can rotate relative to the first connecting hole 210 to The motor 100 is moved away from the mounting table 200. According to the above solution, a plurality of first connecting holes 210 are disposed on the mounting base 200, and a plurality of second connecting holes 110 corresponding to the first connecting holes 210 are disposed on the end surface of the motor 100 near the mounting base 200, because The bolt body 300 is rotatable relative to the first connecting hole 210, and one end of the lifting ring 400 abuts against the bottom end of the motor 100. The rotation of the bolt body 300 can move the motor 100 away from or close to the mounting table 200, thereby alleviating the prior art. The existing intake and exhaust valves of the piston air compressor are difficult to disassemble, which is likely to cause technical problems of equipment damage and personal injury.

On the basis of the above embodiment, further, the first connection hole 210 and the second connection hole 110 are all four, and the four second connection holes 110 are evenly disposed on the end surface of the motor 100 near one end of the mounting table 200.

The number of the first connection hole 210 and the second connection hole 110 may also be three, six or eight, respectively.

During the specific use process, the arrangement of the bolt body 300 and the lifting ring 400 greatly facilitates the alignment adjustment of the motor 100. During the alignment of the motor 100, the motor 100 is adjusted by rotating the bolt body 300. With respect to the relative position between the mounting table 200 and the completion of the wheel alignment work, the horn is added and subtracted by calculating the height of the bolt body 300, which greatly improves the efficiency of the motor 100, and greatly improves the maintenance and repair work of the machine. .

In this embodiment, the first connection hole 210 and the second connection hole 110 are preferably four, and the four second connection holes 110 are evenly disposed on the end surface of the motor 100 near the mounting table 200, and the first connection hole 210 is uniformly arranged correspondingly. On the mounting table 200, through the corresponding arrangement of the four first connecting holes 210 and the four second connecting holes 110, bolts are disposed between each of the two corresponding first connecting holes 210 and the second connecting holes 110. The main body 300 and the lifting ring 400 are connected to the motor 100 and the mounting table 200, and the motor 100 can be close to or away from the mounting table 200.

2 is a top plan view of a stud bolt provided by an embodiment of the present disclosure. As shown in FIG. 2, on the basis of the above embodiment, further, the bolt main body 300 includes a first screw 320 and a second screw 310, and one ends of the first screw 320 and the second screw 310 are connected.

The second screw 310 is configured to be coupled to the second connecting hole 110, the first screw 320 is coupled to the first connecting hole 210, and the first screw 320 and the second screw 310 are integrally disposed, and the bolt body 300 is sleeved on the first screw The junction of 320 and the second screw 310.

Further, the first connection hole 210 is a blind hole, and the second connection hole 110 is a through hole.

In this embodiment, the first connecting hole 210 is a blind hole, and the internal thread matched by the first screw 320 is disposed in the first connecting hole 210 to screw the first screw 320 and the first connecting hole 210, and the second connection The hole 110 is a through hole, and no thread is provided in the through hole to facilitate the connection of the workpiece with the second screw 310 to operate the bolt body 300 to rotate relative to the first connecting hole 210, so that the motor 100 approaches or is away from the mounting table 200.

On the basis of the above embodiment, further, one end of the second screw 310 away from the first screw 320 is provided with a hexagonal threaded hole 311.

In this embodiment, the hexagonal threaded hole 311 is disposed at one end of the second screw 310 away from the first screw 320. Thus, by the cooperation of the hexagonal wrench set and the hexagonal threaded hole 311, the lifting can be performed with a small mass. The motor 100 realizes relative adjustment of the spacing between the motor 100 and the mounting table 200.

Further, based on the above embodiment, further, the outer surface of the first screw 320 is disposed in a regular hexagon.

The outer surface of the first screw 320 may also be a pentagon, an octagon, or the like.

In this embodiment, the outer surface of the first screw 320 lifting ring 400 is arranged in a hexagonal shape, so that when the height of the motor 100 relative to the mounting table 200 needs to be adjusted, and when the weight of the motor 100 is large, it is required. The hexagonal wrench set is coupled to the first screw 320 to rotate the hexagonal wrench set so that the bolt body 300 can be rotated relative to the first connecting hole 210 to move the motor 100 away from or near the mounting table 200.

FIG. 3 is a side view of the stud bolt when the stud bolt is connected to the motor and the mounting base according to the embodiment of the present disclosure; FIG. 5 is a schematic view of the stud bolt provided by the embodiment of the present disclosure. As shown in FIGS. 3 and 5, on the basis of the above embodiment, the mounting base 200 further includes a first pedestal 230 and a second pedestal 240. The first pedestal 230 and the second pedestal 240 are disposed in parallel, and the first pedestal 230 is disposed. Two first connecting holes 210 are disposed on the two sides, and the two first connecting holes 210 are symmetrically disposed at two ends of the first pedestal 230.

In this embodiment, two first connecting holes 210 are respectively disposed on the first pedestal 230 and the second pedestal 240, and the first pedestal 230 and the two first connecting holes 210 disposed on the second pedestal 240 are symmetrically disposed. In this way, the four first connecting holes 210 can be quadrangular, and the second connecting holes 110 are also arranged in a quadrangular shape on the bottom end of the motor 100, thus facilitating the connection between the motor 100 and the first pedestal 230 and the second pedestal 240. The stability of the connection.

On the basis of the above embodiment, further, one end of the motor 100 adjacent to the first pedestal 230 and the second pedestal 240 is provided with a positioning frame 120 disposed between the first pedestal 230 and the second pedestal 240 and positioned Both sides of the frame 120 abut against the inner sides of the first pedestal 230 and the second pedestal 240, respectively.

In this embodiment, the bottom end of the motor 100 is provided with a positioning frame 120, and the side ends of the positioning frame 120 are respectively arranged to abut against the inner side walls of the first pedestal 230 and the second pedestal 240, thereby ensuring that the motor 100 does not The lateral relative movement occurs on the first pedestal 230 and the second pedestal 240 to facilitate the installation between the motor 100 and the mounting table 200. At the same time, the stability of the overall device of the bolt body 300 during adjustment can be improved, and the staff can be reduced. The difficulty of operation.

Based on the above embodiment, further, as shown in FIG. 4, the positioning frame 120 includes a bottom plate 315, two side plates 316, and a telescopic mechanism 317.

The bottom plate 315 is disposed at the bottom end of the motor 100, the two side plates 316 are symmetrically disposed on both sides of the bottom plate 315, the telescopic mechanism 317 is disposed between the two side plates 316, and the telescopic mechanism 317 is configured such that the two side plates 316 are respectively Abutting against the inner sides of the first pedestal 230 and the second pedestal 240.

A sliding slot may be disposed at one end of the bottom plate 315 away from the motor 100. The side plate 316 is slidably disposed in the sliding slot. The telescopic mechanism 317 may have two. The two telescopic mechanisms 317 are respectively disposed adjacent to the two side plates 316. On the end face, it is configured to control the relative positional relationship between the two side plates 316.

The bottom plate 315 may be fixedly connected to the bottom end of the motor 100 or may be detachably connected.

In this embodiment, the bottom plate 315 is disposed at the bottom end of the motor 100, and the side plate 316 is relatively slidable relative to the bottom plate 315. The telescopic mechanism 317 is disposed between the two side plates 316, and the two ends of the telescopic mechanism 317 are respectively The side plate 316 abuts or is fixedly connected to one of the side plates 316, and the side plate 316 is pushed by the telescopic mechanism 317 to move the two side plates 316 to the inner side walls of the first pedestal 230 and the second pedestal 240, respectively. Thereby the lateral movement of the motor 100 and the mounting table 200 is restricted.

On the basis of the above embodiment, further, the mounting base 200 is provided with four recesses 220. The recess 220 is coaxially disposed with the first connecting hole 210, and the groove depth of the recess 220 is greater than or equal to the lifting ring 400. the height of.

In this embodiment, four recesses 220 may be disposed on the mounting base 200. Since the first connecting hole 210 is a counterbore, the recess 220 coincides with the sinking table at the upper end of the counterbore, and the recess 220 is connected to the first connection. The holes 210 are coaxially disposed while the groove depth of the groove 220 is greater than or equal to the height of the lifting ring 400. Thus, when the motor 100 is close to one end of the mounting table 200, all of the lifting ring 400 is in the recess 220 to abut the motor 100 and the mounting table 200, so that the motor 100 and the mounting table 200 are more stably connected. It is beneficial to the stable operation of the motor 100.

In this embodiment, one end of the bolt body 300 is inserted into the first connecting hole 210 on the first pedestal 230, the other end of the bolt body 300 passes through the bottom plate 315, and is exposed from above the bottom plate 315, and the hexagonal threaded hole 311 is located at the bolt. The exposed portion of the main body 300 above the bottom plate 315 is sleeved outside the bolt main body 300, and the lifting ring 400 abuts against the lower side of the bottom plate 315.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present disclosure, and are not intended to be limiting; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present disclosure. range.

Industrial applicability

The stud bolt relieves the difficulty in disassembling the intake and exhaust valves of the piston air compressor existing in the prior art, and is easy to cause technical problems of equipment damage and personal injury.

Claims

A stud bolt configured to be disposed between a motor and a mounting table, comprising: a bolt body and a lifting ring;

The lifting ring is fixedly disposed on the bolt body, the upper surface of the mounting table is provided with a plurality of first connecting holes, and the motor is provided with a plurality of second connecting holes near one end of the mounting table, The first connecting holes are arranged in one-to-one correspondence with the plurality of the second connecting holes;

Two ends of the bolt body are respectively connected to the first connecting hole and the second connecting hole, and one end of the lifting ring abuts a bottom end of the motor, and the bolt body is configured to be The first connecting hole is relatively rotated to enable the motor to be moved away from or close to the mounting table.
The stud according to claim 1, wherein each of the first connecting hole and the second connecting hole is four, and the four connecting holes are evenly disposed in the motor close to the On the end face of one end of the mounting table.
The stud bolt according to claim 1 or 2, wherein both ends of the bolt body are provided with a joint head having a tapered cross section.
A stud according to any one of claims 1 to 3, wherein the bolt body comprises a first screw and a second screw;

The second screw is configured to be coupled to the second connection hole, the first screw is coupled to the first connection hole, and the first screw and the second screw are integrally provided.
The stud according to any one of claims 1 to 4, wherein the first connecting hole is a blind hole, and the second connecting hole is a through hole.
The stud according to claim 5, wherein an internal thread matching the first screw is disposed in the first connecting hole, and the second screw is disposed away from an end of the first screw There are hexagonal threaded holes.
A stud according to any one of claims 1 to 6, wherein the outer surface of the first screw is arranged in a regular hexagon.
A stud according to any one of claims 4-6, wherein the outer surface of the first screw is a pentagon or an octagon.
A stud according to any one of claims 1 to 8, wherein a galvanized layer is provided on the outer surface of the bolt body and the lifting ring.
A stud according to any one of claims 1 to 9, wherein a spacer is provided between the lifting ring and the motor end.
A stud according to any one of claims 1 to 10, wherein the lifting ring includes a first annular portion and a second annular portion, the first annular portion and the first The two annular portions are coaxially disposed, and an outer diameter of the first annular portion is smaller than an outer diameter of the second annular portion, and the second annular portion is disposed near an end of the mounting table.
The stud according to any one of claims 1 to 11, wherein the mounting base comprises a first pedestal and a second pedestal, and the first pedestal and the second pedestal are arranged in parallel at intervals Two first connecting holes are disposed on the first pedestal, and the two first connecting holes are symmetrically disposed at two ends of the first pedestal.
The stud according to claim 12, wherein a position of the motor adjacent to the first pedestal and the second pedestal is provided with a positioning frame, and the positioning frame is disposed at the first pedestal and the pedestal Between the second pedestals, the two ends of the positioning frame abut against the inner sides of the first pedestal and the second pedestal, respectively.
The stud according to claim 13, wherein the positioning frame comprises a bottom plate, two side plates and a telescopic mechanism;

The bottom plate is disposed at a bottom end of the motor, the two side plates are symmetrically disposed on two sides of the bottom plate, the telescopic mechanism is disposed between the two side plates, and the telescopic mechanism is configured to The two side plates are respectively brought into contact with the inner sides of the first pedestal and the second pedestal.
The stud according to claim 14, wherein one end of the bottom plate away from the motor is provided with a sliding slot, and the side plate is slidably disposed in the sliding slot.
The stud bolt according to claim 14 or 15, wherein the number of the telescopic mechanisms is two, and the two telescopic mechanisms are respectively disposed on end faces of the two side plates, and are configured to be Controlling the relative positional relationship between the two side panels.
A stud according to any one of claims 14-16, wherein the bottom plate is connected to the bottom end of the motor in a fixed or detachable connection.
A stud according to any one of claims 14-17, wherein the bottom plate is disposed at a bottom end of the motor, and the side plate is configured to relatively slide relative to the bottom plate, the telescopic mechanism Provided between the two side plates, two ends of the telescopic mechanism respectively abut or are fixedly connected to one of the side plates, and the telescopic mechanism is configured to push the side plates Moving so that the two side plates abut against the inner side walls of the first pedestal and the second pedestal, respectively.
The stud bolt according to any one of claims 12 to 18, wherein two of the first connecting holes are respectively disposed on the first pedestal and the second pedestal, and are disposed at the first The pedestal and the two first connecting holes disposed on the second pedestal are symmetrically disposed, each of the first connecting holes is quadrangular, and the second connecting hole is also quadrangularly disposed at the bottom end of the motor on.
The stud according to any one of claims 1 to 19, wherein the mounting table is provided with four recesses, and the recess is coaxially disposed with the first connecting hole, and The groove depth of the groove is greater than or equal to the height of the lifting ring.