CN216769033U

CN216769033U - Vacuum exhaust platform goes up and down to lock mechanism that targets in place

Info

Publication number: CN216769033U
Application number: CN202122837114.XU
Authority: CN
Inventors: 陈良
Original assignee: Chengdu Huaju Technology Co ltd
Current assignee: Chengdu Huaju Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-06-17
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to the technical field of vacuum equipment, and discloses a locking mechanism for lifting a vacuum exhaust platform in place, which comprises a base capable of being fixed on the upper surface of a workbench, wherein a fixed shaft is vertically arranged on the base, the locking mechanism also comprises a shaft sleeve capable of rotating along the fixed shaft, and the top of the fixed shaft is inserted into the shaft sleeve; the top of the shaft sleeve is coaxially fixed with a supporting rod, the top of the supporting rod is fixed with a supporting block positioned at the bottom edge of the lifting vacuum cavity, the supporting block can support the bottom edge of the lifting vacuum cavity after rotating, and a handle capable of controlling the supporting rod to rotate is fixed on the supporting rod. According to the lifting type vacuum cavity, the supporting rod drives the shaft sleeve to rotate through the control handle, the front end of the supporting block at the top of the supporting rod is located below the lifting type vacuum cavity, the bottom edge of the lifting type vacuum cavity is supported, the lifting type vacuum cavity is prevented from falling, and a worker can place articles in the cavity or conveniently place articles in the cavity or conduct the cavity maintenance process, so that the lifting type vacuum cavity is not prone to falling to cause safety accidents.

Description

Vacuum exhaust platform goes up and down to lock mechanism that targets in place

Technical Field

The utility model relates to the technical field of vacuum equipment, in particular to a locking mechanism for lifting a vacuum exhaust platform in place.

Background

In the existing lifting vacuum cavity, because the interior of the cavity is negative pressure or vacuum in the working process, the cavity needs to bear larger pressure, and the cavity is often heavier; when the object is placed in the cavity or the cavity is overhauled, the vacuum cavity which rises to a certain height needs to be supported, otherwise, the vacuum cavity easily falls down to cause safety accidents in lofting or overhauling.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a locking mechanism for lifting a vacuum exhaust table in place, which is characterized in that a supporting rod drives a shaft sleeve to rotate through a control handle, so that the front end of a supporting block at the top of the supporting rod is positioned below a lifting vacuum cavity to support the edge of the bottom of the lifting vacuum cavity, the lifting vacuum cavity is ensured not to fall, and a worker can conveniently place articles in the cavity or the cavity is maintained, so that the lifting vacuum cavity is not easy to fall to cause safety accidents.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a vacuum exhaust table lifting in-place locking mechanism comprises a base capable of being fixed on the upper surface of a workbench, a fixed shaft and a shaft sleeve capable of rotating along the fixed shaft, wherein the top of the fixed shaft is inserted into the shaft sleeve; the top of the shaft sleeve is coaxially fixed with a supporting rod, the top of the supporting rod is fixed with a supporting block positioned at the bottom edge of the lifting vacuum cavity, the supporting block can support the bottom edge of the lifting vacuum cavity after rotating, and a handle capable of controlling the supporting rod to rotate is fixed on the supporting rod.

Furthermore, two limiting blocks are arranged at the bottom of the shaft sleeve, one surface of each limiting block, which faces the base, is provided with a cambered groove, the two cambered grooves are distributed annularly along the central axis of the fixed shaft, and the central angle between the two cambered grooves is 90 degrees; the base upper surface is fixed with can with the corresponding barrel of stopper, the barrel interpolation is equipped with the gag lever post, the top of gag lever post is in arc top surface and the scalable cambered surface recess, the open-top position of barrel is provided with the reducing section, the bottom of gag lever post is provided with the stop gear who prevents that the barrel inner chamber is deviate from to the gag lever post bottom, installs the spring of contradicting bottom the gag lever post in the barrel inner chamber.

Furthermore, an induction column is installed on the outer wall of the shaft sleeve, two proximity switches are installed on the base or the workbench, the two proximity switches are distributed annularly along the central axis of the fixed shaft, the central angle between the two cambered grooves is 90 degrees, and the two proximity switches are in communication connection with the alarm mechanism; and when the top of the limiting rod extends into one of the cambered surface grooves, the induction column is positioned right above one of the proximity switches.

Further, the inner wall of the shaft sleeve is rotatably connected with the outer wall of the fixed shaft through a bearing.

Furthermore, a flexible cushion layer is arranged at the position of the supporting block, which is in contact with the edge of the bottom of the lifting vacuum cavity.

Furthermore, a reinforcing rib is arranged at the position where the bottom of the supporting block is connected with the supporting rod.

Compared with the prior art, the utility model has the advantages that: according to the lifting type vacuum cavity, the supporting rod drives the shaft sleeve to rotate through the control handle, the front end of the supporting block at the top of the supporting rod is located below the lifting type vacuum cavity, the bottom edge of the lifting type vacuum cavity is supported, the lifting type vacuum cavity is prevented from falling, and a worker can place articles in the cavity or conveniently place articles in the cavity or conduct the cavity maintenance process, so that the lifting type vacuum cavity is not prone to falling to cause safety accidents.

Drawings

FIG. 1 is a schematic view of the installation of a locking mechanism for locking a vacuum exhaust table in place during lifting and a lifting vacuum chamber in the embodiment;

FIG. 2 is a schematic view showing the connection of the base, the fixed shaft and the shaft sleeve in the embodiment;

FIG. 3 is an enlarged schematic view of detail A of FIG. 2;

FIG. 4 is a perspective view of a locking mechanism for lifting the vacuum exhaust table to the proper position in the embodiment;

FIG. 5 is a schematic structural diagram of a limiting block at the bottom of the shaft sleeve in the embodiment;

wherein: 1. a work table; 2. a base; 3. fixing a shaft; 4. a shaft sleeve; 5. a support bar; 6. a support block; 7. a handle; 8. a limiting block; 9. a cambered surface groove; 10. a barrel; 11. a limiting rod; 12. a spring; 13. an induction column; 14. a proximity switch; 15. an alarm mechanism; 16. a bearing; 17. a flexible cushion layer; 18. and (5) reinforcing ribs.

Detailed Description

The present invention will be further explained below.

Example (b):

as shown in fig. 1-5, a vacuum exhaust table lifting locking mechanism comprises a base 2 which can be fixed on the upper surface of a workbench 1, a fixed shaft 3 is vertically arranged on the base 2, and the vacuum exhaust table lifting locking mechanism also comprises a shaft sleeve 4 which can rotate along the fixed shaft 3, wherein the top of the fixed shaft 3 is inserted into the shaft sleeve 4; the top of the shaft sleeve 4 is coaxially fixed with a support rod 5, the top of the support rod 5 is fixed with a support block 6 positioned at the bottom edge of the lifting vacuum cavity, the support block 6 can support the bottom edge of the lifting vacuum cavity after rotating, and a handle 7 capable of controlling the support rod 5 to rotate is fixed on the support rod 5.

In the embodiment, the supporting block 6 is initially positioned at one side of the lifting vacuum cavity, when the lifting vacuum cavity rises to a position that the bottom edge is higher than the upper surface of the supporting block 6, the supporting rod 5 drives the shaft sleeve 4 to rotate through the control handle 7, so that the front end of the supporting block 6 at the top of the supporting rod 5 is positioned below the lifting vacuum cavity, the bottom edge of the lifting vacuum cavity is supported, the lifting vacuum cavity is ensured not to fall, and the lifting vacuum cavity is convenient for workers to place articles into the cavity or to overhaul the cavity, so that the lifting vacuum cavity is not easy to fall to cause safety accidents; when the lifting type vacuum cavity needs to be put down, the cavity is slightly lifted, then the handle 7 is rotated, the supporting block 6 is not contacted with the edge of the bottom of the lifting type vacuum cavity any more, and then the lifting device of the lifting type vacuum cavity is controlled to slowly descend the cavity to form a closed cavity structure with the surface of the workbench 1.

Two limiting blocks 8 are arranged at the bottom of the shaft sleeve 4, one surface of each limiting block 8 facing the base 2 is provided with an arc-shaped groove 9, the two arc-shaped grooves 9 are distributed annularly along the central axis of the fixed shaft 3, and the central angle between the two arc-shaped grooves 9 is 90 degrees; the upper surface of the base 2 is fixed with a barrel 10 corresponding to the limiting block 8, a limiting rod 11 is inserted into the barrel 10, the top of the limiting rod 11 is an arc-shaped top surface and can extend into the arc-shaped groove 9, the top opening of the barrel 10 is provided with a reducing section, the bottom of the limiting rod 11 is provided with a limiting mechanism for preventing the bottom of the limiting rod 11 from being separated from the inner cavity of the barrel 10, and a spring 12 which is inconsistent with the bottom of the limiting rod 11 is installed in the inner cavity of the barrel 10. In the embodiment, when the front end of the supporting block 6 rotates to the bottom of the lifting vacuum cavity, the arc groove 9 of one of the limiting blocks 8 is just above the limiting rod 11, the limiting rod 11 extends under the elastic force of the spring 12, and the top of the limiting rod extends into the arc groove 9 to play a role in limiting and locking, so that the supporting rod 5 and the supporting block 6 are not easy to rotate randomly; when the lifting vacuum cavity needs to be put down, the handle 7 can be rotated to 90 degrees, the limiting rod 11 contracts under the action of external force, is separated from the cambered surface groove 9, and can extend into the corresponding cambered surface groove 9 when rotating to the cambered surface groove 9 of the next limiting block 8.

The outer wall of the shaft sleeve 4 is provided with an induction column 13, the base 2 or the workbench 1 is provided with two proximity switches 14, the two proximity switches 14 are distributed annularly along the central axis of the fixed shaft 3, the central angle between the two cambered grooves 9 is 90 degrees, and the two proximity switches 14 are in communication connection with an alarm mechanism 15; and when the top of the limiting rod 11 extends into one of the cambered surface grooves 9, the induction column 13 is positioned right above one of the proximity switches 14. In the embodiment, when the supporting block 6 rotates 90 degrees from the initial position to support the bottom of the lifting vacuum cavity, the induction column 13 is located right above one of the proximity switches 14, and the proximity switch 14 and the induction column 13 act to generate an induction signal and transmit the induction signal to the alarm mechanism 15, so that the supporting block 6 is prompted to support the cavity by a worker, and safe operation can be performed in the cavity; when the supporting block 6 rotates 90 degrees from the supporting position, the induction column 13 acts with the other proximity switch 14, and the generated signal is transmitted to the alarm mechanism 15 to generate an alarm signal, so that the worker is prompted that the supporting block 6 does not support the lifting type vacuum cavity at the moment, and the operation items in the cavity cannot be carried out. The alarm mechanism 15 may be a device capable of emitting an alarm sound or an alarm light, and the alarm mechanism 15 in this embodiment is an alarm lamp capable of generating light rays of different colors.

The inner wall of the shaft sleeve 4 is rotatably connected with the outer wall of the fixed shaft 3 through the bearing 16, the shaft sleeve 4 is connected with the fixed shaft 3 through the bearing 16, the shaft sleeve 4 is guaranteed to be capable of easily rotating, the shaft sleeve 4 is guaranteed to be capable of rotating coaxially relative to the fixed shaft 3, and the problem that the shaft sleeve 4 is not easily clamped to rotate when being generated between the shaft sleeve 4 and the fixed shaft 3 is solved.

The supporting block 6 is provided with the flexible cushion layer 17 at the position contacting with the bottom edge of the lifting vacuum cavity, so that the problem that the bottom edge of the lifting vacuum cavity is easily damaged when the supporting block 6 is made of an excessively hard material can be prevented, and the sealing performance of the lifting vacuum cavity is ensured.

The position of being connected between supporting shoe 6 bottom and bracing piece 5 is provided with strengthening rib 18, ensures supporting shoe 6 and supports intensity, and supporting shoe 6 is difficult for producing the problem of bending deformation.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; while the utility model has been described with reference to specific embodiments and applications, it will be apparent to those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a vacuum exhaust platform goes up and down to locking mechanical system that targets in place, includes base (2) that can be fixed in workstation (1) upper surface, its characterized in that: the base (2) is vertically provided with a fixed shaft (3) and further comprises a shaft sleeve (4) capable of rotating along the fixed shaft (3), and the top of the fixed shaft (3) is inserted into the shaft sleeve (4); the top of the shaft sleeve (4) is coaxially fixed with a support rod (5), the top of the support rod (5) is fixed with a support block (6) located at the bottom edge of the lifting vacuum cavity, the support block (6) can support the bottom edge of the lifting vacuum cavity after rotating, and a handle (7) capable of controlling the support rod (5) to rotate is fixed on the support rod (5).

2. The vacuum exhaust table lifting and locking mechanism of claim 1, wherein: two limiting blocks (8) are arranged at the bottom of the shaft sleeve (4), one surface, facing the base (2), of each limiting block (8) is provided with an arc-shaped groove (9), the two arc-shaped grooves (9) are distributed annularly along the central axis of the fixed shaft (3), and the central angle between the two arc-shaped grooves (9) is 90 degrees; base (2) upper surface fixed have can with barrel (10) that stopper (8) are corresponding, barrel (10) interpolation is equipped with gag lever post (11), the top of gag lever post (11) is in arc top surface and scalable income cambered surface recess (9), the open-top position of barrel (10) is provided with the reducing section, the bottom of gag lever post (11) is provided with the stop gear who prevents gag lever post (11) bottom and deviate from barrel (10) inner chamber, install in barrel (10) inner chamber with gag lever post (11) bottom inconsistent spring (12).

3. The vacuum exhaust table lifting and locking mechanism of claim 2, wherein: an induction column (13) is installed on the outer wall of the shaft sleeve (4), two proximity switches (14) are installed on the base (2) or the workbench (1), the two proximity switches (14) are distributed annularly along the central axis of the fixed shaft (3), the central angle between the two cambered surface grooves (9) is 90 degrees, and the two proximity switches (14) are in communication connection with an alarm mechanism (15); and when the top of the limiting rod (11) extends into one of the cambered surface grooves (9), the induction column (13) is positioned right above one of the proximity switches (14).

4. The vacuum exhaust table lifting and locking mechanism of claim 1, wherein: the inner wall of the shaft sleeve (4) is rotationally connected with the outer wall of the fixed shaft (3) through a bearing (16).

5. The vacuum exhaust table lifting and locking mechanism of claim 1, wherein: and a flexible cushion layer (17) is arranged at the position of the supporting block (6) which is in contact with the edge of the bottom of the lifting vacuum cavity.

6. The vacuum exhaust table lifting and locking mechanism of claim 1, wherein: and reinforcing ribs (18) are arranged at the connecting positions between the bottom of the supporting block (6) and the supporting rod (5).