CN218031045U

CN218031045U - Manual pressure relief sucker

Info

Publication number: CN218031045U
Application number: CN202222104224.XU
Authority: CN
Inventors: 王之文; 黄志刚
Original assignee: Rishan Computer Accessories Jiashan Co Ltd
Current assignee: Rishan Computer Accessories Jiashan Co Ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-13
Anticipated expiration: 2032-08-10

Abstract

The utility model provides a manual pressure release sucking disc, including the shaft barrel that has the air vent, the bottom of shaft barrel links firmly the sucker, and the end opening of air vent feeds through the absorption chamber of sucker, penetrates the elastic expansion subassembly in the top mouth of air vent, sets up ventilation structure on the elastic expansion subassembly, and elastic expansion subassembly returns to contract and drives ventilation structure and air vent and be linked together, and the overhanging drive ventilation structure of elastic expansion subassembly cuts off with the air vent mutually. The utility model discloses adsorb and unload easy, can easily make the sucking disc loosen, resume unoperated state, subtract the laborsaving manpower, improve work efficiency. With ventilation structure and axis integration an organic whole, optimize whole sucker structure, realize one-hand operation's convenience, further promote the operation and experience, improve operating efficiency simultaneously. Adopt less ventilation gap such as recess, hole, avoid the great ventilation gap of hoop gap type to the easy degree of the sealed realization of guarantee ensures overall structure's gas tightness, prolongs the life that sealed, pressure release switch.

Description

Manual pressure relief sucker

Technical Field

The utility model belongs to the technical field of machinery, a vacuum adsorption instrument, especially a manual pressure release sucking disc are related to.

Background

The sucking disc is a pendant which is adsorbed on an object by utilizing the difference of internal and external atmospheric pressures, or a tool for grabbing the object. The sucking disc is made of nitrile rubber mostly, and has larger breaking force, so the sucking disc is widely applied to various vacuum holding devices.

The existing plastic sucker can be adsorbed on the surface of a smooth object such as glass, ceramic tiles, a table top and the like due to the pressure action of air after being pressed. The operation process of adsorbing the plastic sucker on the surface of a smooth object is very simple and convenient, and the sucker can be pressed only by one hand. However, it is relatively difficult to reverse this process even if the suction cup is returned from the suction operating state to the non-operating state in which it is released from the surface of the object, particularly when the suction cup is large in size and the suction force is strong. In general, it is troublesome to forcibly pull or peel the nail from its side surface by a thin object such as a fingernail or the like.

To solve the above problem, for example, chinese patent literature discloses a suction cup [ chinese patent No.: CN02265175.6, the utility model discloses a sucking disc, including suction cup, circular hunch form sheet metal and functional unit, the suction cup is fixed in the below of sheet metal, and the functional unit is fixed in the sheet metal top, is provided with a breather valve on the suction cup, and this breather valve can be button ventilation valve or pull ring formula breather valve. The utility model discloses the adsorption process of sucking disc is the same completely with having had the sucking disc, as long as easily press the sucking disc alright firmly adsorb smooth object surface. When the sucking disc is loosened from the surface of the smooth object to be adhered, the sucking disc is recovered from the adsorption working state to the non-working state, and the inside and outside pressures of the sucking disc can be instantly balanced by only opening the vent valve by hand to enable air isolated from the outside of the sucking disc to enter the inside of the sucking disc through the opened vent valve. Therefore, the sucker can be easily loosened and recovered to a non-working state, and the method is very simple and convenient.

Above-mentioned technical scheme sets up axostylus axostyle and breather valve in two detached positions, when release atmospheric pressure, needs a hand to hold the axostylus axostyle, and the breather valve is pressed to the other hand, needs two hands to operate from this, increases the complexity of operation, is unfavorable for the effect purpose of light pressure release blowing. In addition, a conical structure is adopted for annular gap sealing, and the gap is large, so that the circumferential sealing difficulty is large, sealing failure is easily caused, and the adsorption function is lost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided one kind with ventilation structure and axis integration an organic whole, realized one-hand operation's convenience from this, adopted the manual pressure release sucking disc of less ventilation gap guarantee gas tightness simultaneously.

The purpose of the utility model can be realized by the following technical proposal: the manual pressure relief sucker comprises a shaft cylinder with an air duct, wherein the bottom of the shaft cylinder is fixedly connected with a sucker body, the bottom opening of the air duct is communicated with an adsorption cavity of the sucker body, an elastic telescopic assembly penetrates into a top opening of the air duct, a ventilation structure is arranged on the elastic telescopic assembly, the elastic telescopic assembly retracts to drive the ventilation structure to be communicated with the air duct, and the elastic telescopic assembly extends outwards to drive the ventilation structure to be separated from the air duct.

In foretell manual pressure release sucking disc, the flexible subassembly that stretches out and draws back includes spring and button, the ventiduct top mouth of beam barrel is the step hole, the spring embedding the step hole makes its bottom support to lean on annular step face, the button stretches into the step hole and suppress in on the top of spring, the circumference sealed wall that the button has pastes step downthehole wall forms the connection of sliding.

In the manual pressure relief sucker, the inner periphery of the stepped hole is provided with a tapered hole section, the tapered hole section is reduced from an inner opening to an outer opening, the bottom end of the button is an outward-expanding tapered section, and the outward-expanding tapered section and the tapered hole section form matching cross connection.

In the manual pressure relief sucker, the ventilation structure is a strip-shaped ventilation groove which is concavely arranged on the outer wall of the button, the ventilation groove is parallel to the axis of the button, and the circumferential sealing wall is positioned below the ventilation groove.

In the manual pressure relief sucker, the number of the vent grooves is two, and the two vent grooves are symmetrically arranged on the outer wall of the button.

In the manual pressure relief sucker, the vent structure is a vent bent hole formed in the button, a top opening of the vent bent hole is located on the upper side wall of the button and exposes out of the step hole, and a bottom opening of the vent bent hole is located on the lower side wall of the button and located in the step hole.

In the manual pressure relief sucker, the two ventilating bent holes are arc-shaped holes and symmetrically arranged in the button.

In foretell manual pressure release sucking disc, the bottom of beam barrel sets up the cone, the sucker top is the spliced pole, set up in the spliced pole and be annular draw-in groove, the cone stretches into the spliced pole with the draw-in groove forms the axial joint.

In foretell manual pressure release sucking disc, set up a plurality of arc strips along the circumference is protruding on the outer wall of spliced pole, the hoop is cup jointed to the spliced pole periphery, the interior week of hoop sets up and is annular card ditch, and is a plurality of the arc strip embedding form axial positioning in the card ditch.

In foretell manual pressure release sucking disc, the beam barrel includes beam barrel and lower beam barrel, the bottom of going up the beam barrel has the screw hole, the top of beam barrel has the screw thread post down, the screw thread post is twisted soon and is gone into form the screw thread assembly in the screw hole, the sealing washer is cup jointed to screw thread post periphery, the sealing washer clamp is located go up the beam barrel with between the beam barrel down.

Compared with the prior art, this manual pressure release sucking disc has following beneficial effect:

1. the adsorption and unloading operation is simple and easy, the sucking disc can be easily loosened to be restored to a non-working state, the labor is saved, and the working efficiency is improved.

2. With ventilation structure and axis integration an organic whole, optimize whole sucker structure to realize the convenience of one-hand operation, further promote the operation and experience, improve operating efficiency simultaneously.

3. Adopt less ventilation gap such as recess, hole, avoid the great ventilation gap of hoop gap type to the easy degree of the sealed realization of guarantee ensures overall structure's gas tightness, prolongs the life that sealed, pressure release switch.

Drawings

Fig. 1 is an overall external structure view of the embodiment of the manual pressure relief suction cup.

Fig. 2 is a cross-sectional structure diagram of the manual pressure relief suction cup according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of the manual pressure relief suction cup according to the second embodiment.

In the figure, 1, an upper shaft sleeve; 1a, a stepped hole; 2. a lower shaft cylinder; 2a, an air duct; 2b, a conical head; 3. a seal ring; 4. a button; 4a, a vent groove; 4b, a ventilation bent hole; 5. a spring; 6. a hoop; 7. a suction cup body; 7a and connecting columns.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in figures 1 and 2, the manual pressure relief sucker comprises a shaft cylinder with an air duct 2a, wherein the bottom of the shaft cylinder is fixedly connected with a sucker body 7, a bottom opening of the air duct 2a is communicated with an adsorption cavity of the sucker body 7, an elastic telescopic assembly penetrates into a top opening of the air duct 2a, an air ventilation structure is arranged on the elastic telescopic assembly, the elastic telescopic assembly retracts to drive the air ventilation structure to be communicated with the air duct 2a, and the elastic telescopic assembly extends outwards to drive the air ventilation structure to be separated from the air duct 2 a.

The elastic telescopic assembly comprises a spring 5 and a button 4, the top opening of the air channel 2a of the shaft cylinder is a step hole 1a, the spring 5 is embedded into the step hole 1a to enable the bottom end of the spring to abut against an annular step surface, the button 4 extends into the step hole 1a and is pressed on the top end of the spring 5, and a circumferential sealing wall of the button 4 is closely attached to the inner wall of the step hole 1a and forms sliding connection. The spring 5 is pressed down by pressing the button 4, so that the button 4 is partially pressed into the stepped hole 1a; the push button 4 is released and the push button 4 is pushed outward to return to the original position by the elastic force of the spring 5.

The inner periphery of the stepped hole 1a is provided with a conical hole section, the conical hole section is reduced from an inner opening to an outer opening, the bottom end of the button 4 is an outer expanding conical section, and the outer expanding conical section and the conical hole section form matching cross connection. Through the tapered necking structure, the limiting function is achieved, and the button 4 is prevented from being separated from the top opening of the stepped hole 1 a.

The ventilation structure is a strip-shaped ventilation groove 4a which is concavely arranged on the outer wall of the button 4, the ventilation groove 4a is arranged in parallel with the axis of the button 4, and the circumferential sealing wall is positioned below the ventilation groove 4 a. The number of the vent grooves 4a is two, and the two vent grooves 4a are symmetrically arranged on the outer wall of the button 4.

The button 4 is pressed down to enable the circumferential sealing wall to move downwards and form a gap with the conical hole segment, and meanwhile, the vent groove 4a synchronously moves downwards to enable the lower end of the vent groove to be communicated with the vent channel 2a through the gap, so that outside air enters from the upper end of the vent groove 4a, flows into the vent channel 2a through the vent groove 4a and finally enters the adsorption cavity of the sucker 7 to balance the internal pressure and the external pressure, and the adsorption force is relieved.

The bottom of a shaft barrel is provided with a conical head 2b, the top of the sucker body 7 is provided with a connecting column 7a, an annular clamping groove is formed in the connecting column 7a, and the conical head 2b extends into the connecting column 7a to form axial clamping with the clamping groove. Through conical head 2b and annular draw-in groove joint, can realize the assembly that links firmly of beam barrel and suction cup 7, can realize the gas tightness of both intercommunications again to avoid gas leakage phenomenon.

The outer wall of the connecting column 7a is convexly provided with a plurality of arc-shaped strips along the circumferential direction, the periphery of the connecting column 7a is sleeved with the hoop 6, the inner periphery of the hoop 6 is provided with an annular clamping groove, and the arc-shaped strips are embedded into the clamping groove to form axial positioning. The hoop 6 is sleeved with the connecting column 7a and the conical head 2b, and the fixing property and the air tightness of the shaft cylinder and the sucker 7 are further enhanced through the hooping effect.

The shaft cylinder comprises an upper shaft cylinder 1 and a lower shaft cylinder 2, a threaded hole is formed in the bottom end of the upper shaft cylinder 1, a threaded column is arranged at the top end of the lower shaft cylinder 2, the threaded column is screwed into the threaded hole to form threaded assembly, a sealing ring 3 is sleeved on the periphery of the threaded column, and the sealing ring 3 is clamped between the upper shaft cylinder 1 and the lower shaft cylinder 2. The upper shaft barrel 1 and the lower shaft barrel 2 are assembled to form the integral shaft barrel, and the detachable connection and the replacement and maintenance are realized through the thread fit. The sealing performance of the assembly interface is ensured through the sealing ring 3, so that the air leakage phenomenon is avoided.

This manual pressure release sucking disc's mode of action does:

1. the sucker body 7 is directly placed on the screen, air is slightly discharged by pressing, and the screen is adsorbed;

2. the integral sucker is taken up together with the screen;

3. moving operation;

4. a button 4 at the top is pressed by a single hand, and is connected with the air duct 2a for pressure relief, so that the screen is released;

5. removing the whole sucker;

6. the above-described operation is repeated.

Example two

This embodiment is substantially the same as the first embodiment, except that:

as shown in fig. 3, the ventilation structure is specifically a curved ventilation hole 4b formed in the button 4, a top opening of the curved ventilation hole 4b is located on the upper side wall of the button 4 and exposes out of the stepped hole 1a, and a bottom opening of the curved ventilation hole 4b is located on the lower side wall of the button 4 and is located in the stepped hole 1 a. The two ventilation bent holes 4b are symmetrically arranged inside the button 4.

The button 4 is pressed down to enable the circumferential sealing wall to move downwards and form a gap with the conical hole segment, and meanwhile, the vent bent hole 4b synchronously moves downwards to enable the bottom opening of the vent bent hole to be communicated with the air channel 2a through the gap, so that outside air enters from the top opening of the vent bent hole 4b, flows into the air channel 2a through the vent bent hole 4b, finally enters the adsorption cavity of the sucker body 7 to balance the internal and external pressure, and the adsorption force is relieved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the upper shaft barrel 1 is used more herein; a stepped hole 1a; a lower shaft barrel 2; an air duct 2a; a tapered head 2b; a seal ring 3; a button 4; a vent groove 4a; a vent bend hole 4b; a spring 5; a hoop 6; a suction cup body 7; the connecting columns 7a, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Claims

1. The manual pressure relief sucker comprises a shaft cylinder with an air duct, and is characterized in that the bottom of the shaft cylinder is fixedly connected with a sucker body, the bottom opening of the air duct is communicated with an adsorption cavity of the sucker body, an elastic telescopic assembly penetrates into the top opening of the air duct, a ventilation structure is arranged on the elastic telescopic assembly, the elastic telescopic assembly retracts to drive the ventilation structure to be communicated with the air duct, and the elastic telescopic assembly extends outwards to drive the ventilation structure to be separated from the air duct.

2. The manual pressure relief suction cup according to claim 1, wherein said elastic expansion assembly comprises a spring and a button, the top opening of said air passage of said shaft cylinder is a stepped hole, said spring is embedded in said stepped hole to make its bottom end abut against the annular stepped surface, said button is extended into said stepped hole and pressed on the top end of said spring, said button has a circumferential sealing wall closely contacting the inner wall of said stepped hole and forming a sliding connection.

3. The manual pressure relief suction cup according to claim 2, wherein said stepped bore has an inner circumference with a tapered bore section, said tapered bore section is narrowed from an inner opening to an outer opening, said bottom end of said button is an outwardly flared tapered section, said outwardly flared tapered section forms a mating cross-connection with said tapered bore section.

4. The manual pressure relief suction cup according to claim 2, wherein said venting structure is a strip-shaped venting groove recessed in an outer wall of said button, said venting groove being disposed parallel to an axis of said button, said circumferential sealing wall being located below said venting groove.

5. The manual pressure relief suction cup according to claim 4, wherein said number of said vent grooves is two, and two of said vent grooves are symmetrically formed on an outer wall of said button.

6. The manual pressure relief suction cup according to claim 2, wherein said venting structure is a venting curved hole formed in said button, a top opening of said venting curved hole is located on an upper side wall of said button and exposed out of said stepped hole, and a bottom opening of said venting curved hole is located on a lower side wall of said button and located in said stepped hole.

7. The manual pressure relief suction cup according to claim 6, wherein said curved vent holes are circular arc shaped, and the number of said curved vent holes is two, and two of said curved vent holes are symmetrically disposed inside said button.

8. The manual pressure relief sucking disc as claimed in claim 1, wherein a conical head is arranged at the bottom end of the shaft cylinder, the top of the sucking disc body is a connecting column, an annular clamping groove is formed in the connecting column, and the conical head extends into the connecting column to form an axial clamping connection with the clamping groove.

9. The manual pressure relief sucking disc as claimed in claim 8, wherein the outer wall of the connecting column is provided with a plurality of arc strips protruding in the circumferential direction, the outer circumference of the connecting column is sleeved with a hoop, the inner circumference of the hoop is provided with an annular clamping groove, and the plurality of arc strips are embedded into the clamping groove to form axial positioning.

10. The manual pressure relief sucking disc as claimed in claim 1, wherein said shaft cylinder comprises an upper shaft cylinder and a lower shaft cylinder, a threaded hole is formed in the bottom end of said upper shaft cylinder, a threaded post is formed in the top end of said lower shaft cylinder, said threaded post is screwed into said threaded hole to form a threaded assembly, a sealing ring is sleeved on the periphery of said threaded post, and said sealing ring is clamped between said upper shaft cylinder and said lower shaft cylinder.