CN217177131U

CN217177131U - Vacuum chuck

Info

Publication number: CN217177131U
Application number: CN202220470302.5U
Authority: CN
Inventors: 骆科旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-08-12
Anticipated expiration: 2032-03-04

Abstract

A vacuum chuck comprises an elastic chuck body and a handle fixedly arranged at the top of the elastic chuck body, wherein an adsorption surface is formed at the bottom of the elastic chuck body, a piston chamber, a piston, a pressing part, a first elastic part and a pressure relief mechanism are arranged on the handle, the piston is movably arranged in the piston chamber and is in sealing fit with the piston chamber, the piston chamber below the piston is communicated with the adsorption surface through a first channel, the piston chamber above the piston is communicated with the atmosphere, the first channel is provided with a pressure relief opening communicated with the atmosphere, the pressing part is connected with the piston and can be pressed to drive the piston to move downwards, the first elastic part drives the pressing part to reset upwards, the pressure relief mechanism opens the pressure relief opening when the piston moves downwards and seals the pressure relief opening when the piston moves upwards, when the negative pressure is reduced due to air leakage, the first elastic piece can still continuously drive the piston to move upwards, so that the negative pressure state of the elastic sucker body is kept.

Description

Vacuum chuck

Technical Field

The utility model relates to a vacuum chuck for supplementary object that snatchs to have smooth surface, like glass, ceramic tile etc..

Background

Chinese patent document CN215827845U discloses a linear adsorption type glass carrying tool, which comprises a handle part, an adsorption mechanism and a locking mechanism, wherein the adsorption mechanism is located at two ends of the handle part, the locking mechanism comprises a lock catch, a metal gasket and a pull rod, the adsorption mechanism comprises a disc and a circular plastic sucker, a hole is arranged at the center of the disc, a widened sucker frame is arranged at the periphery of the disc, a plurality of concave stabilizing grooves are arranged at the top of the widened sucker frame, an anti-pinch groove is arranged at one side of the disc away from the handle part, a stress groove is arranged at one side of the disc close to the handle part, the adsorption capacity of the carrying tool on glass is improved by adopting the structure of widening the sucker frame and the concave stabilizing grooves, and the stress groove forms a better stress structure to enable a user to achieve a better holding effect, prevent pressing from both sides the condition that the recess had avoided the hasp tong when the activity hasp, improved the security that the instrument used, above-mentioned glass handling tool appears leaking gas the condition easily and leads to the adsorption apparatus to drop.

Disclosure of Invention

The utility model provides a vacuum chuck that can reliably adsorb.

The purpose of the utility model is realized through the following technical scheme:

a vacuum chuck, characterized by: including the elastic chuck body with fix the handle that sets up at elastic chuck body top, elastic chuck body bottom is formed with the adsorption plane, be provided with the piston room on hand, the piston, press the splenium, first elastic component and relief mechanism, the piston activity sets up in the piston room with piston room seal fit, the piston room of piston below is through first passageway and adsorption plane intercommunication, the piston room and the atmosphere intercommunication of piston top, first passageway is provided with the atmospheric pressure release mouth of intercommunication, press the splenium to connect the piston can be pressed in order to order about the piston downstream, first elastic component orders about according to splenium upwards resetting, relief mechanism opens the pressure release mouth when the piston upstream moves when the pressure release mouth. During the use, the operator holds the handle and laminates the adsorption plane of elastic sucker body on the smooth surface of object, then the finger pushes down and presses the splenium to make the piston move down, compress the piston chamber of piston below, pressure release mechanism then opens the pressure release mouth when the piston moves down, make the air discharge of piston indoor portion, after the finger loosens and presses the splenium, first elastic component orders about and presses the splenium to reset upwards and drive the piston and move upwards, pressure release mouth is sealed at this in-process, the piston chamber space increase of piston below, make first passageway, piston chamber and adsorption plane below space formation negative pressure below the piston, this negative pressure makes elastic sucker body reliably adsorb on the smooth surface of object, and when leading to the negative pressure to reduce because of gas leakage, first elastic component still can continue piston rebound, thereby keep the negative pressure state of elastic sucker body.

The pressure relief mechanism comprises a pressing plate, a plug, a second elastic part and a pivot shaft, the pressing plate can swing between a closed state and an open state around the pivot shaft, the plug is arranged at one end of the pressing plate, the second elastic part is arranged at the other end of the pressing plate to drive the pressing plate to swing to the closed state, the plug seals the pressure relief opening when the pressing plate is at the closed position, and the plug opens the pressure relief opening when the pressing plate is at the open state. When the piston moves downwards, the pressure in the first channel is increased to overcome the elasticity of the second elastic piece approximately, so that the pressing plate swings to an opening state to open the pressure relief port to exhaust internal air, when the piston moves upwards, the second elastic piece resets to enable the pressing plate to swing to a closed state to close the pressure relief port, and when the vacuum chuck needs to be dismounted, the pressing plate can be manually pressed to enable the pressing plate to swing to the opening state, so that the space below the adsorption surface is communicated with the atmosphere, and the vacuum chuck is conveniently dismounted.

The handle is formed with convex grafting portion with the connection face of elastic chuck body, and the elastic chuck body is formed with and supplies grafting portion interference male jack, first passageway is including forming first section on the handle and the second section that forms at the elastic chuck body, first section one end intercommunication the piston below the piston the other end opening of piston chamber in grafting portion lower extreme, second section one end intercommunication jack bottom other end opening in the adsorption plane. Because the elastic sucker body has elasticity, the jack also has elasticity, and the reliable sealing connection of the first section and the second section can be ensured after the insertion part is inserted into the jack in an interference manner, so that air leakage is prevented.

The handle comprises a holding section and two connecting sections extending downwards from two ends of the holding section, and the two connecting sections are connected with the top of the elastic sucker body. The arrangement can ensure the connection reliability of the handle and the elastic sucker body and is convenient for holding the handle.

The pressure relief mechanism is arranged on one connecting section, does not obstruct the holding of the handle and can prevent misoperation.

Still include with the manometer of adsorption surface intercommunication, the manometer sets up another on the linkage segment, set up the manometer at another linkage segment, make overall structure more reasonable compact.

The piston chamber, the piston, the pressing part and the first elastic piece are arranged on the holding section, so that the pressing part can be operated conveniently, and the pressing part is in a sinking state when the vacuum chuck works, so that the holding of the holding section is not influenced.

The piston chamber is upper end open-ended structure, be provided with on the handle and seal piston chamber upper end open-ended apron, pressing the splenium and being formed with the connection the spliced pole of piston is formed with the hole of stepping down that supplies the spliced pole to pass on the apron, first elastic component for the cover establish on the spliced pole and compressed the apron with press the spring between the splenium, this structure can be convenient in the equipment of product.

The handle is provided with a mounting hole, the pressing part is movably arranged in the mounting hole, and a limiting part for limiting the pressing part to be separated from the mounting hole is formed on the pressing part.

And a metal support ring matched with the elastic sucker body in shape is arranged in the elastic sucker body. The metal support ring can ensure that the position of the elastic sucker body close to the outer edge is not easy to deform, so that air leakage is further prevented.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a middle sectional view of fig. 2.

Fig. 4 is an exploded view of the present invention.

Detailed Description

Referring to fig. 1 to 4, a vacuum chuck comprises an elastic chuck body 1, a handle 2 fixedly arranged at the top of the elastic chuck body 1, a pressure relief mechanism 4 and a pressure gauge 3, wherein the elastic chuck body 1 is made of silica gel or rubber materials, an adsorption surface 11 is formed at the bottom of the elastic chuck body 1, in order to prevent the bottom of the elastic chuck body 1 from deforming, a metal support ring 12 matched with the elastic chuck body 1 in shape is arranged in the elastic chuck body 1, and the cross section of the metal support ring 12 is rectangular.

Handle 2 is including holding section A and the left side linkage segment B and the right side linkage segment C of holding section A both ends downwardly extending from, fastener connection is passed through at two linkage segments B and 1 top of elastic sucker body, the fastener is the bolt, the screw etc., specific handle 2 is formed by last casing 2a and lower casing 2B combination, go up through bolt or screwed connection between casing 2a and the lower casing 2B, pressure relief mechanism 4 sets up on left side linkage segment B, manometer 3 sets up on right side linkage segment C and communicates with adsorption plane 11, elastic sucker body 1 is formed with the second passageway 14 that communicates manometer 3 and adsorption plane 11, 1 top of elastic sucker body is formed with the spliced tube 31 interference male spliced eye 15 that supplies manometer 3, this spliced eye 15 and second passageway 14 intercommunication.

The grip section A of the handle 2 is provided with a piston chamber 22, a piston 27, a pressing portion 24 and a first spring 25, the upper shell 2a is provided with a mounting hole 21 for mounting the pressing portion 24, the pressing portion 24 is arranged in the mounting hole 21 in a vertically movable manner, the lower end of the pressing portion 24 is provided with an annular limiting edge 242 protruding outwards, the annular limiting edge 242 is larger than the mounting hole 21 to limit the upward separation of the pressing portion 24 from the mounting hole 21, the lower shell 2b is provided with a piston chamber 22 opposite to the mounting hole 21, the piston chamber 22 is an open structure with an open upper end, the piston chamber 22 is a long structure extending along the length direction of the grip section A, the piston 27 is arranged in the piston chamber 22 in a vertically movable manner, the shape of the piston 27 is matched with the piston chamber 22 and is in sealing fit with the inner wall of the piston chamber 22, the upper port of the piston chamber 22 is provided with a cover plate 26, the bottom of the pressing portion 24 is provided with two connecting columns 241 extending downwards, two abdicating holes 261 for the two connecting columns 241 to pass through are formed in the cover plate 26, the two connecting columns 261 are fixedly connected with the piston 27 after passing through the abdicating holes 261, connecting holes 271 for connection are formed in the piston 27, specifically, the two connecting columns 261 are fixedly connected with bolts which pass through the connecting holes 271 and are in threaded connection with the connecting columns 261, the first springs 25 are sleeved on the connecting columns 261 and are compressed between the cover plate 26 and the pressing part 24, and the structure can facilitate assembly of products.

The piston chamber 22 below the piston 27 is communicated with the adsorption surface 11 through a first channel, the piston chamber 22 above the piston 27 is communicated with the atmosphere, the first channel is provided with a pressure relief port 53 communicated with the atmosphere, the pressure relief port 53 is arranged on the lower shell 2b of the handle 2, the pressing part 24 can be pressed to drive the piston 27 to move downwards, the first spring 25 drives the pressing part 24 to reset upwards, and the pressure relief mechanism 4 opens the pressure relief port 53 when the piston 27 moves downwards and closes the pressure relief port 53 when the piston 27 moves upwards.

The top of the elastic sucker body 1 is provided with a left boss 1a and a right boss 1B which are used for butt joint with a left connecting section B and a right connecting section C, the left boss 1a and the right boss 1B are provided with flat top surfaces, a convex inserting part 23 is formed on the connecting surface of the left connecting section B and the left boss 1a of the handle 2, the top surface of the left boss 1a is provided with a jack 13 for the interference insertion of the inserting part 23, a first channel comprises a first section 51 formed on the handle 2 and a second section 52 formed on the elastic sucker body 1, one end of the first section 51 is communicated with a piston chamber 22 below the piston 27, the other end of the first section is opened at the lower end of the inserting part 23, one end of the second section 52 is communicated with the bottom of the jack 13 and the other end is opened on the adsorption surface 11, because the elastic sucker body 1 has elasticity, the jack 13 also has elasticity, and reliable sealing connection between the first section 51 and the second section 52 can be ensured after the inserting part 23 is inserted into the jack 13 in an interference manner, preventing air leakage.

The pressure relief mechanism 4 comprises a pressing plate 41, a plug 44, a second spring 43 and a pivot shaft 42, wherein the pressing plate 41 is arranged on the left connecting section B of the handle 2 in a manner of swinging around the pivot shaft 42 between a closed state and an opened state, the plug 44 is made of elastic materials such as silica gel or rubber, the plug 44 is arranged at one end of the pressing plate 41, a positioning hole 411 is formed at one end of the pressing plate 41, the plug 44 is fixedly arranged on the positioning hole 411, the second spring 43 is arranged between the bottom of the other end of the pressing plate 41 and the left connecting section B of the handle 2, the pressing plate 41 is driven by the second spring 43 to swing to the closed state, the plug 44 seals the pressure relief opening 53 when the pressing plate 41 is at the closed position, the plug 44 opens the pressure relief opening 53 when the pressing plate 41 is at the opened state, when the piston 27 moves downwards, the pressure in the first channel is increased to enable the pressing plate 41 to swing to the opened state to open the pressure relief opening 53 to discharge the internal air, when the piston 27 moves upward, the second spring 43 is restored to swing the pressing plate 41 to the closed state to close the pressure relief port 53, and when the vacuum chuck needs to be removed, the pressing plate 41 can be manually pressed to swing the pressing plate 41 to the open state to communicate the space below the suction surface 11 with the atmosphere, thereby facilitating the removal of the vacuum chuck.

When the elastic sucker is used, an operator holds the handle 2 to attach the adsorption surface 11 of the elastic sucker body 1 to the smooth surface of an object, then presses the pressing part 24 downwards by a finger to move the piston 27 downwards, so as to compress the piston chamber 22 below the piston 27, the pressure relief mechanism 4 opens the pressure relief opening 53 when the piston 27 moves downwards, so as to exhaust air in the piston chamber 22, when the pressing part 24 is released by the finger, the first spring 25 drives the pressing part 24 to reset upwards to drive the piston 27 to move upwards, in the process, the pressure relief opening 53 is closed, the space of the piston chamber 22 below the piston 27 is increased, so that a negative pressure is formed among the first channel, the piston chamber 22 below the piston 27 and the space below the adsorption surface 11, the negative pressure enables the elastic sucker body 1 to be reliably adsorbed on the smooth surface of the object, and when the negative pressure is reduced due to air leakage, the first spring 25 can still drive the piston 27 to move upwards, thereby maintaining the negative pressure state of the elastic suction cup body 11.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is to be construed as being modified and modified in accordance with the appended claims and their equivalents.

Claims

1. A vacuum chuck is characterized in that: the elastic sucker comprises an elastic sucker body (1) and a handle (2) fixedly arranged at the top of the elastic sucker body (1), wherein an adsorption surface (11) is formed at the bottom of the elastic sucker body (1), a piston chamber (22), a piston (27), a pressing part (24), a first elastic piece and a pressure relief mechanism (4) are arranged on the handle (2), the piston (27) is movably arranged in the piston chamber (22) and is in sealing fit with the piston chamber (22), the piston chamber (22) below the piston (27) is communicated with the adsorption surface (11) through a first channel, the piston chamber (22) above the piston (27) is communicated with the atmosphere, the first channel is provided with a pressure relief opening (53) communicated with the atmosphere, the pressing part (24) is connected with the piston (27) and can be pressed to drive the piston (27) to move downwards, the pressing part (24) is driven by the first elastic piece to reset upwards, the pressure relief mechanism (4) opens the pressure relief opening (53) when the piston (27) moves downwards, and closes the pressure relief opening (53) when the piston (27) moves upwards ).

2. A vacuum chuck according to claim 1, wherein: the pressure relief mechanism (4) comprises a pressing plate (41), a plug (44), a second elastic part and a pivot shaft (42), the pressing plate (41) can swing between a closed state and an open state around the pivot shaft (42), the plug (44) is arranged at one end of the pressing plate (41), the second elastic part drives the pressing plate (41) to swing to the closed state, the plug (44) seals the pressure relief opening (53) when the pressing plate (41) is at the closed position, and the plug (44) opens the pressure relief opening (53) when the pressing plate (41) is in the open state.

3. A vacuum chuck according to claim 1, wherein: the handle (2) is formed with convex grafting portion (23) with the connection face of elastic chuck body (1), and elastic chuck body (1) is formed with and supplies grafting portion (23) interference male jack (13), first passageway is including forming first section (51) on handle (2) and second section (52) that form in elastic chuck body (1), first section (51) one end intercommunication piston chamber (22) other end opening in grafting portion (23) lower extreme, second section (52) one end intercommunication jack (13) bottom other end opening in adsorption plane (11).

4. A vacuum chuck according to claim 1, 2 or 3, wherein: the handle (2) comprises a holding section (A) and two connecting sections extending downwards from two ends of the holding section (A), and the two connecting sections are connected with the top of the elastic sucker body (1).

5. The vacuum chuck as set forth in claim 4, wherein: the pressure relief mechanism (4) is arranged on one of the connecting sections.

6. The vacuum chuck as set forth in claim 5, wherein: still include with manometer (3) of adsorption surface intercommunication, manometer (3) set up in another on the linkage segment.

7. The vacuum chuck as set forth in claim 4, wherein: the piston chamber (22), the piston (27), the pressing part (24) and the first elastic piece are arranged on the holding section (A).

8. A vacuum chuck according to claim 1, 2 or 3, wherein: piston chamber (22) is upper end open-ended open structure, be provided with the closure on handle (2) piston chamber (22) upper end open-ended apron (26), pressing portion (24) to be formed with the connection spliced pole (241) of piston (27), be formed with the hole of stepping down (261) that supplies spliced pole (241) to pass on apron (26), first elastic component is established on spliced pole (241) and is compressed apron (26) and press the spring between portion (24) for the cover.

9. The vacuum chuck as set forth in claim 8, wherein: the handle (2) is provided with a mounting hole (21), the pressing part (24) is movably arranged in the mounting hole (21), and the pressing part (24) is provided with a limiting part for limiting the pressing part (24) to be separated from the mounting hole (21).

10. A vacuum chuck according to claim 1, 2 or 3, wherein: the elastic sucker body (1) is internally provided with a metal support ring (12) matched with the elastic sucker body in shape.