Tandem type modular vacuum generator structure

Abstract

The utility model relates to the field of vacuum generators, in particular to a tandem type modularized vacuum generator structure, which comprises an electromagnetic valve component, a mounting cover plate, an air inlet main body, a vacuum generator main body, a filter main body, a pressure sensor, a cross sunk screw and a cross recessed pan head self-tapping screw I, the electromagnetic valve assembly is fixedly connected to the mounting cover plate through four sets of cross recessed pan head self-tapping screws I. Square nuts I are arranged in grooves I in the front side and the rear side of the upper end of the vacuum generator body, and six sets of cross countersunk head screws sequentially penetrate through the mounting cover plate, the air inlet body and the vacuum generator body downwards and are connected with the square nuts I. The filter main body is arranged at the lower end of the vacuum generator main body, the mounting cover plate, the air inlet main body and the vacuum generator main body are connected in series and spliced together through the six cross sunk screws, and the electromagnetic valve assembly is fixed on the mounting cover plate through the four cross recessed pan head self-tapping screws I, so that the product is convenient to disassemble and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to the vacuum generator field relates to a series connection formula modularization vacuum generator structure. BACKGROUND

[0002] The principle of the vacuum generator: when the pressure of the air supply port exceeds a certain value, the nozzle shoots supersonic airflow, and due to the viscosity of the gas, the air in the negative pressure cavity is sucked away, so that the cavity forms very low vacuum pressure to achieve the vacuum effect; Multistage vacuum generator: the negative pressure cavity is divided into front and back, the front one receives a smaller diameter pipe to provide higher vacuum pressure, and the back one has larger diameter to provide larger suction flow.

[0003] The existing market SMC vacuum generator module installation structure, the installation mode of the air inlet main body and the vacuum generation main body is fixed by the fixed pin and the reverse buckle, the valve body assembly is connected with the air inlet main body through the screw, and then the pilot valve assembly part is installed on the valve body assembly through the screw; This installation mode cannot be easily disassembled and repaired after product assembly, and it is very easy to damage the part body and cause waste of parts.

[0004] Therefore, in order to solve the problems in the prior art, a series connection formula modularization vacuum generator structure with simple structure needs to be designed. INVENTION CONTENTS

[0005] The utility model discloses a series connection formula modularization vacuum generator structure to solve the prior art problems.

[0006] The utility model discloses a series connection formula modularization vacuum generator structure to solve the prior art problems.

[0007] Further improvement, the electromagnetic valve assembly upper end is equipped with the casing, the casing lower end is installed on the installation cover plate through the buckle.

[0008] Further improvement, the air inlet main body right side is connected with air inlet quick change joint.

[0009] Further improvement, the filter main body right side is connected with vacuum quick change joint.

[0010] Further improvement, the recess two of the vacuum generator main body lower end front and back side are equipped with square nut two, the pressure sensor is equipped with cross groove disc head self tapping screw two, the cross groove disc head self tapping screw two passes through pressure sensor and vacuum generator main body in proper order and is connected square nut two, the vacuum generator main body left side is equipped with limit strip, and the pressure sensor is equipped with sliding groove matched with limit strip.

[0011] Compared with the prior art, the beneficial effects of the series connection type modular vacuum generator structure of the utility model are as follows: six cross countersunk head screws are used to connect the mounting cover plate, the air inlet main body and the vacuum generator main body in series; the electromagnetic valve assembly is fixed on the mounting cover plate by four cross groove disc head self tapping screws, and this mounting mode can only use the loose screw to disassemble and maintain the product, so that the operation is simple and unnecessary waste caused by damage to parts is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structural schematic diagram of the utility model

[0013] Fig. 2 It is the structural schematic diagram of the utility model without cover

[0014] Fig. 3 It is the structural schematic diagram of the utility model locally

[0015] Fig. 4 It is the structural schematic diagram of the pressure sensor in the utility model

[0016] In the drawing, 1-electromagnetic valve assembly, 2-mounting cover plate, 3-air inlet main body, 31-air inlet quick change joint, 4-vacuum generator main body, 41-recess one, 42-recess two, 43-limit strip, 5-filter main body, 51-vacuum quick change joint, 6-pressure sensor, 61-square nut two, 62-sliding groove, 7-cross countersunk head screw, 71-square nut one, 81-cross groove disc head self tapping screw one, 82-cross groove disc head self tapping screw two, 9-cover, 91-buckle. DETAILED DESCRIPTION

[0017] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as the limitation of the utility model.

[0018] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the term "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection, or integrally connected.

[0019] The utility model is further described below in combination with the embodiments and drawings. Figs. 1-4 The technical scheme of the utility model is further described.

[0020] Embodiment 1

[0021] A series type modular vacuum generator structure, comprising: solenoid valve assembly 1, installation cover plate 2, air inlet main body 3, vacuum generator main body 4, filter main body 5, pressure sensor 6, cross countersunk screw 7 and cross slot disc head self tapping screw one 81, the solenoid valve assembly 1 is fixedly connected on installation cover plate 2 by four groups of cross slot disc head self tapping screw one 81, the recess one 41 in the upper end front and back side of vacuum generator main body 4 is equipped with square nut one 71, six groups of cross countersunk screw 7 pass through installation cover plate 2, air inlet main body 3, vacuum generator main body 4 and connect square nut one 71 downwards in turn, the filter main body 5 is arranged at the lower end of vacuum generator main body 4, the pressure sensor 6 is arranged at the left side of installation cover plate 2, air inlet main body 3 and vacuum generator main body 4.

[0022] As a further preferred embodiment, the upper end of the solenoid valve assembly 1 is provided with a cover 9, and the lower end of the cover 9 is installed on the installation cover plate 2 by a buckle 91. The cover can protect the solenoid valve assembly, prevent dust and moisture from entering, and prolong the service life of the solenoid valve.

[0023] As a further preferred embodiment, the air inlet main body 3 is connected with an air inlet quick change connector 31 on the right side. The flexibility and maintenance efficiency of the system are improved, and the air pipe is convenient to replace or repair quickly.

[0024] As a further preferred embodiment, the filter main body 5 is connected with a vacuum quick change connector 51 on the right side. The flexibility and maintenance efficiency of the system are improved, and the vacuum pipe is convenient to replace or repair quickly.

[0025] As a further preferred embodiment, the recesses two 42 on the front and back sides of the lower end of the vacuum generator body 4 are provided with square nuts two 61, the pressure sensor 6 is provided with cross-groove head self-tapping screws two 82, the cross-groove head self-tapping screws two 82 pass through the pressure sensor 6 and the vacuum generator body 4 in sequence and connect the square nuts two 61, the left side of the vacuum generator body 4 is provided with a limiting strip 43, and the pressure sensor 6 is provided with a sliding groove 62 matched with the limiting strip 43. The installation of the pressure sensor is more stable, the limiting strip and the sliding groove ensure the stability and accuracy of the pressure sensor during installation and use, and the reliability is improved.

[0026] As shown in the figure, the use principle of the utility model is: the product structure is connected in series by six cross countersunk head screws 7 to splice together the installation cover plate 2, the air inlet body 3 and the vacuum generator body 4; then the electromagnetic valve assembly 1 is fixed on the installation cover plate 2 through four cross-groove head self-tapping screws one 81. This installation mode only needs to loosen the screws to disassemble and maintain the product, which is simple in operation and avoids unnecessary waste caused by damage to parts.

[0027] Working explanation:

[0028] State 1: when the left pilot valve (vacuum air supply valve) and the right pilot valve (break valve) coils of the vacuum generator body 4 are not powered, the two valve cores are pushed upward under the influence of air pressure, so that the valve core sealing ring and the valve core sleeve are in a sealed state.

[0029] State 2: when the left pilot valve (vacuum air supply valve) coil is powered and maintained, the gas passes through the flow channel to exert a downward pressure on the left valve core, so that the valve core sealing ring and the valve core sleeve are in an open state, and the gas enters the vacuum generator body 4 through the nozzle to achieve the vacuum effect.

[0030] State 3: when the right pilot valve (break valve) coil is powered and maintained, the gas passes through the flow channel to exert a downward pressure on the right valve core, so that the valve core sealing ring and the valve core sleeve are in an open state, and the gas enters the filter body 5 to achieve the effect of breaking the vacuum.

[0031] The above describes the preferred embodiment of the utility model. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the utility model. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model shall be within the protection scope determined by the claims.

Claims

1. A series modular vacuum generator structure, characterized by, Include: Solenoid valve assembly, installation cover plate, intake main body, vacuum generator main body, filter main body, pressure sensor, cross countersunk screw and cross slot pan head self tapping screw one, the solenoid valve assembly is fixedly connected on the installation cover plate by four groups of cross slot pan head self tapping screw one, the recess one in the front and back side of the upper end of the vacuum generator main body is equipped with square nut one, six groups of the cross countersunk screw pass through the installation cover plate, intake main body, vacuum generator main body and connect square nut one downwards in turn, the filter main body is arranged at the lower end of the vacuum generator main body, the pressure sensor is arranged at the left side of the installation cover plate, intake main body and vacuum generator main body.

2. A series modular vacuum generator structure according to claim 1, characterized in that, The upper end of the solenoid valve assembly is equipped with a cover, and the lower end of the cover is installed on the installation cover plate by a buckle.

3. A series modular vacuum generator structure according to claim 1, wherein, The right side of the intake main body is connected with an intake quick change connector.

4. The series modular vacuum generator structure of claim 1, wherein, The right side of the filter main body is connected with a vacuum quick change connector.

5. The series modular vacuum generator structure of claim 1, wherein, The recess two in the front and back side of the lower end of the vacuum generator main body is equipped with square nut two, the pressure sensor is equipped with cross slot pan head self tapping screw two, the cross slot pan head self tapping screw two pass through the pressure sensor and vacuum generator main body and connect square nut two in turn, the left side of the vacuum generator main body is equipped with a limiting strip, and the pressure sensor is equipped with a sliding groove matched with the limiting strip.

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