Deflation valve for vacuum chuck

Abstract

The utility model discloses a deflation valve for a vacuum chuck, which comprises a valve seat (1), a first deflation hole (3) used for being communicated with a gas flow channel of the vacuum chuck is arranged at the bottom of the valve seat (1), and a mounting groove (2) is arranged on one side of the valve seat (1) deviating from the gas flow channel. The flexible valve element (4) is arranged in the mounting groove (2), and a second vent hole (5) is formed in the flexible valve element (4); the limiting mechanism limits the flexible valve element (4) at the first position, and when the flexible valve element (4) is located at the first position, the first air bleed hole (3) and the second air bleed hole (5) do not coincide; and the rotating mechanism is used for rotating the flexible valve element (4) to the second position, and when the flexible valve element (4) is located at the second position, the first air bleed hole (3) and the second air bleed hole (5) coincide. When the device is used for the vacuum chuck, the situation that articles fall off due to mistaken touch when the vacuum chuck carries the articles can be avoided, property damage can be reduced, and safety is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a deflation valve, in particular to a deflation valve for vacuum chuck. BACKGROUND

[0002] The vacuum chuck device is a kind of handling and hanging tool for being attached to object by the difference between internal and external atmospheric pressure, and the existing vacuum chuck mainly has two kinds, the first kind of vacuum chuck is manually operated, i.e. manually pumping to generate vacuum negative pressure to absorb workpiece, the second kind of vacuum chuck is electrically operated, i.e. using a vacuum pump to pump to generate vacuum negative pressure to absorb workpiece, the two kinds of ways are by pumping to the disc body, the air pressure in the disc body is less than the air pressure outside, to realize the close connection of vacuum chuck and object, to achieve the purpose of handling workpiece or hanging object by people using vacuum chuck.

[0003] As disclosed in the patent with application No.202210114887.1, when the connection between the suction disc and the material needs to be contacted after the material is transported, the air can enter the bottom of the bottom plate when the pressing position of the pressure release button is pressed, because the supporting rubber plug of the lever pin is separated from the pressure release hole on the communication seat, and the pipeline of the communication seat is in an unblocked state, and the suction disc is in a state of being released from adsorption. When the pressing position of the pressure release button is released, the rubber plug is reset to block the pressure release hole on the communication seat due to the action of the spring, so that the pipeline of the communication seat is closed. The deflation valve of this form may be accidentally pressed when in use, which may cause the material to fall, not only causing property damage, but also easily causing safety hazards to workers. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a deflation valve for vacuum chuck. When used in vacuum chuck, it can avoid the falling of the object caused by accidental touch when the vacuum chuck transports the object, not only can reduce the property damage, but also has good safety.

[0005] The technical scheme of the utility model: a deflation valve for vacuum chuck, comprising:

[0006] Valve seat, the bottom is provided with first deflation hole for communicating the gas flow channel of vacuum chuck, and the side away from the gas passage is provided with mounting groove;

[0007] Flexible valve core, provided in the mounting groove, and the second deflation hole is arranged in the flexible valve core;

[0008] Limiting mechanism, the flexible valve core is limited in the first position, when the flexible valve core is located in the first position, the first deflation hole and the second deflation hole do not coincide;

[0009] A rotating mechanism is used to rotate the flexible valve core to a second position, when the flexible valve core is in the second position, the first and second air release holes are coincided;

[0010] The flexible valve core can be reset from the second position to the first position by the elasticity of the flexible valve core.

[0011] In the foregoing air release valve for vacuum chuck, the limiting mechanism comprises a protruding part arranged on the inner side of the mounting groove and a corresponding recess arranged on the flexible valve core.

[0012] In the foregoing air release valve for vacuum chuck, the operating mechanism comprises a hard skeleton embedded in the flexible valve core.

[0013] In the foregoing air release valve for vacuum chuck, the hard skeleton is provided with a mounting part extending to the outer side of the flexible valve core, and the mounting part is connected with the knob.

[0014] In the foregoing air release valve for vacuum chuck, the knob is arranged on the outer side of the valve seat and can rotate relative to the valve seat, and the knob is provided with a handle corresponding to the mounting part.

[0015] In the foregoing air release valve for vacuum chuck, the mounting groove is a long strip-shaped mounting groove, and one end of the mounting groove penetrates through the valve seat, and the two sides of the mounting groove are provided with guide strips.

[0016] In the foregoing air release valve for vacuum chuck, the limiting mechanism comprises a limiting seat arranged at the end of the mounting groove, and the limiting seat is fixed to the end of the valve seat by a fastener.

[0017] In the foregoing air release valve for vacuum chuck, the operating mechanism comprises a stopper arranged on one side of the flexible valve core and capable of driving the flexible valve core to move from the first position to the second position, and the two sides of the stopper are provided with guide grooves corresponding to the guide strips.

[0018] In the foregoing air release valve for vacuum chuck, the upper end of the stopper is provided with a push block extending to the outer side of the valve seat.

[0019] Compared with the prior art, the air release valve has the following advantages:

[0020] The valve seat is fixed to the gas flow channel side of the vacuum chuck, and the flexible valve core is used to close or open the first air release hole, so as to control whether the vacuum chuck is in the closed state or not, and the flexible valve core can be reset under the action of the elasticity of the flexible valve core. The structure of the application is small and simple, not only low in cost, but also convenient to install, and when the application is used in the vacuum chuck, the risk caused by accidental pressing can be reduced, and the safety is good. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1is a structure schematic view of embodiment 1 of the utility model;

[0022] Figure 2 is a sectional view of the shell of embodiment 1 of the utility model;

[0023] Figure 3 is a sectional view of the flexible valve core and the hard skeleton of embodiment 1 of the utility model;

[0024] Figure 4 is a sectional view of embodiment 2 of the utility model.

[0025] The marks in the drawing are: 1-valve seat, 2-mounting groove, 3-first air release hole, 4-flexible valve core, 5-second air release hole, 6-protruding part, 7-recessed part, 8-hard skeleton, 9-mounting part, 10-knob, 11-grip, 12-limiting seat, 13-guiding strip, 14-abutment block, 15-push block, 16-guiding groove. DETAILED DESCRIPTION

[0026] The utility model will be further explained in connection with the drawings and embodiments, but not as the basis for limiting the utility model.

[0027] Embodiment 1. A kind of air release valve for vacuum chuck, constitute as shown in Figures 1-3 Including: valve seat 1, bottom is equipped with the first air release hole 3 for connecting the gas flow passage of vacuum chuck, its side away from gas passage is equipped with mounting groove 2;

[0028] Flexible valve core 4, be located in the mounting groove 2, flexible valve core 4 is equipped with second air release hole 5, second air release hole 5 is equipped with the hard support of pipe type, prevent second air release hole 5 from deforming in the process of rotation;

[0029] Limiting mechanism, flexible valve core 4 is limited in first position, when flexible valve core 4 is located in first position, first air release hole 3 and second air release hole 5 do not coincide;

[0030] Operating mechanism, for moving flexible valve core 4 to second position, when flexible valve core 4 is located in second position, first air release hole 3 and second air release hole 5 coincide;

[0031] Through the elasticity of flexible valve core 4 itself, can make flexible valve core 4 reset from the second position to first position.

[0032] The limiting mechanism includes the protruding part 6 of setting in the inner side of mounting groove 2 and the recessed part 7 of setting on flexible valve core 4 corresponding shape.

[0033] The operating mechanism includes the hard skeleton 8 of embedding in flexible valve core 4.

[0034] The hard skeleton 8 is provided with a mounting part 9 extending to the outside of the flexible valve core 4, and the mounting part 9 is connected with a knob 10.

[0035] The knob 10 is arranged outside the valve seat 1 and can rotate relative to the valve seat 1, and the knob 10 is provided with a handle 11 corresponding to the mounting part 9.

[0036] The principle of the utility model is: when the utility model is used, first, the valve seat 1 is connected to the gas flow channel of the vacuum chuck, and whether the vacuum chuck is in the closed state is controlled by changing the relative position of the flexible valve core 4 and the valve seat 1. Under the action of the limiting mechanism, the flexible valve core 4 is in the first position under the action of the limiting mechanism without external force, when the flexible valve core 4 is in the first position, the first air release hole 3 and the second air release hole 5 do not coincide, so that the vacuum chuck is in the closed state; if the closed state is to be released, the knob 10 is rotated, the knob 10 is cooperated with the hard skeleton 8 to drive the flexible valve core 4 to rotate, the hard skeleton 8 is a hard skeleton arranged in the length direction of the flexible valve core 4, and the width of the hard skeleton is consistent with the width of the upper end mounting part, so that the flexible valve core 4 can be driven to move in cooperation with the mounting part 9, when the flexible valve core 4 rotates, the end portion will extrude the convex part 6 and deform, when the flexible valve core 4 moves to the second position, the first air release hole 3 and the second air release hole 5 coincide, so that the vacuum chuck is in the closed state, so that the vacuum chuck can be separated from the carried article, then the handle is loosened, under the action of the elasticity of the flexible valve core 4, the flexible valve core 4 returns to the first position, and the vacuum chuck is closed again. The utility model has the advantages of simple structure, low cost, convenient installation on the vacuum chuck, convenient assembly, and the utility model is used on the vacuum chuck, the phenomenon that the vacuum chuck is separated from the carried article due to the worker touching the air release valve by mistake in the carrying process can be avoided, not only the property loss can be reduced, but also the safety is good.

[0037] Embodiment 2. The structure is as shown in Figure 4 On the basis of embodiment 1, the mounting groove 2 is a long strip-shaped mounting groove, one end of the mounting groove 2 penetrates the valve seat 1, and guide strips 13 are arranged on the two sides of the mounting groove 2; the limiting mechanism comprises a limiting seat 12 arranged at the end of the mounting groove 2, the limiting seat 12 is fixed to the end of the valve seat 1 through a fastener, and the limiting seat 12 not only enables the flexible valve core 4 to be located at the first position by the elasticity of the flexible valve core 4, but also facilitates the installation of the abutting block 14 and the push block 15.

[0038] The operating mechanism comprises an abutting block 14 arranged on one side of the flexible valve core 4 and capable of driving the flexible valve core 4 to move from the first position to the second position, guide grooves 16 corresponding to the guide strips 13 are arranged on the two sides of the abutting block 14; and the upper end of the abutting block 14 is provided with a push block 15 extending to the outside of the valve seat 1.

[0039] In the installation of the embodiment, the flexible valve core 4 is first fixed under the abutting block 14 through the mounting seat under the abutting block, and then the flexible valve core 4 and the abutting block 14 are installed in the installation groove 2 through the cooperation of the guide strip 13 and the guide groove 16, and then the limiting seat 12 is installed, which is fixed at the end of the valve seat 1 through fasteners such as screws, and further a long screw can be used to directly realize the connection of the limiting seat 12, the valve seat 1 and the vacuum chuck. The limiting seat 12 not only can position the abutting block 14 and the flexible valve core 4, so that the flexible valve core 4 is in the first position under the action of no external force, but also can facilitate the installation of the abutting block 14. Since one end of the installation groove 2 penetrates the valve seat 1, the abutting block 14 can be directly installed horizontally in the installation groove, and then after the limiting seat 12 is fixed, the limiting seat 12 can prevent the abutting block 14 from being separated from the installation groove. When the vacuum chuck needs to be unsealed, the flexible valve core 4 is driven from the first position to the second position by the push block 15 and the abutting block 14, so that the first air release hole 3 and the second air release hole 5 are coincident, and the vacuum chuck is unsealed. When sealing is needed, the push block 15 and the abutting block 14 are loosened, so that the flexible valve core 4 is reset from the second position to the first position under the action of its own elasticity, so that the first air release hole 3 and the second air release hole 5 are misaligned, and the vacuum chuck is sealed.

Claims

1. A venting valve for a vacuum suction cup, characterized in that, include: The valve seat (1) has a first vent hole (3) at the bottom for connecting the gas flow channel of the vacuum suction cup, and a mounting groove (2) is provided on the side away from the gas channel. A flexible valve core (4) is provided in the mounting groove (2), and a second vent hole (5) is provided in the flexible valve core (4); The limiting mechanism limits the flexible valve core (4) to the first position. When the flexible valve core (4) is in the first position, the first vent hole (3) and the second vent hole (5) do not coincide. An operating mechanism is used to move the flexible valve core (4) to a second position. When the flexible valve core (4) is in the second position, the first vent hole (3) and the second vent hole (5) coincide. The flexible valve core (4) can be reset from the second position to the first position due to its own elasticity.

2. The venting valve for a vacuum suction cup according to claim 1, characterized in that: The mounting groove (2) is a mounting groove that is concentric with the valve seat (1) and has a circular cross-sectional shape.

3. The venting valve for a vacuum suction cup according to claim 2, characterized in that: The limiting mechanism includes a protrusion (6) provided inside the mounting groove (2) and a recess (7) with a corresponding shape provided on the flexible valve core (4).

4. The venting valve for a vacuum suction cup according to claim 3, characterized in that: The operating mechanism includes a rigid frame (8) embedded in the flexible valve core (4).

5. A venting valve for a vacuum suction cup according to claim 4, characterized in that: The rigid frame (8) is provided with a mounting part (9) extending to the outside of the flexible valve core (4), and the mounting part (9) is connected to the knob (10).

6. A venting valve for a vacuum suction cup according to claim 5, characterized in that: The knob (10) is located on the outside of the valve seat (1) and can rotate relative to the valve seat (1). The knob (10) has a handle (11) corresponding to the mounting part (9).

7. The venting valve for a vacuum suction cup according to claim 1, characterized in that: The mounting groove (2) is a long strip-shaped mounting groove, and one end of the mounting groove (2) passes through the valve seat (1). Guide strips (13) are provided on both sides of the mounting groove (2).

8. A venting valve for a vacuum suction cup according to claim 7, characterized in that: The limiting mechanism includes a limiting seat (12) disposed at the end of the mounting groove (2), and the limiting seat (12) is fixed to the end of the valve seat (1) by fasteners.

9. A venting valve for a vacuum suction cup according to claim 8, characterized in that: The operating mechanism includes a stop block (14) disposed on one side of the flexible valve core (4) and capable of moving the flexible valve core (4) from the first position to the second position. The stop block (14) has guide grooves (16) on both sides corresponding to the guide strip (13).

10. A venting valve for a vacuum suction cup according to claim 9, characterized in that: The upper end of the abutment block (14) is provided with a push block (15) extending to the outside of the valve seat (1).

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