Vacuum generator with negative pressure monitoring interface

Abstract

The utility model relates to the field of vacuum generator design, and discloses a vacuum generator with a negative pressure monitoring interface, which comprises a vacuum generator main body, a suction cup clamping groove is arranged on a main view surface of the vacuum generator main body, a suction cup air inlet hole and a mounting hole are arranged on the suction cup clamping groove, and the suction cup air inlet hole and the mounting hole are arranged on the same vertical line. A vacuum generation pipe is arranged in a hole in the left side of the vacuum generator body, an air inlet channel is formed in the right side of the vacuum generator body, a piston assembly is arranged in a hole in the position, below the air inlet channel, of the right side of the vacuum generator body, and air distribution holes are formed in the inner wall of the air inlet channel. The air distribution hole is communicated with an internal air hole of the piston assembly; the vacuum generator body is provided with a negative pressure cavity, the negative pressure cavity is communicated with the vacuum generating pipe, and vacuum gas in the negative pressure cavity is subjected to positive and negative pressure conversion through transverse movement of the piston assembly.

Description

Technical Field

[0001] This utility model relates to the field of vacuum generator design, and in particular to a vacuum generator with a negative pressure monitoring interface. Background Technology

[0002] A vacuum generator is a new type of efficient, clean, economical, and compact vacuum component that uses a positive pressure air source to generate negative pressure. This makes it very easy and convenient to obtain negative pressure in places where compressed air is available, or in a pneumatic system where both positive and negative pressure are required simultaneously. Vacuum generators are widely used in industrial automation in fields such as machinery, electronics, packaging, printing, plastics, and robotics.

[0003] In the existing technology, vacuum generators are not perfect in practical applications. The most common problem is air leakage. Poor sealing, pipeline blockage, mechanical failure, material defects, etc. can all affect the airtightness of the vacuum generator; however, such problems are quite hidden. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a vacuum generator with a negative pressure monitoring interface. By installing a negative pressure monitoring device on the interface, the vacuum generator can monitor the internal negative pressure in real time, thus solving the technical problem that it is difficult to detect and eliminate air leakage in vacuum systems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum generator with a negative pressure monitoring interface, comprising a vacuum generator body, a suction cup slot on the main viewing surface of the vacuum generator body, a suction cup air inlet and a mounting hole on the same vertical line in the suction cup slot, a vacuum generating tube installed in the left side opening of the vacuum generator body, an air inlet channel in the right side opening, a piston assembly installed in the right side opening below the air inlet channel, a gas distribution hole in the inner wall of the air inlet channel, the gas distribution hole communicating with the internal air hole of the piston assembly; the vacuum generator body is provided with a negative pressure chamber, the negative pressure chamber communicating with the vacuum generating tube, and the vacuum gas in the negative pressure chamber undergoes positive and negative pressure conversion through the lateral movement of the piston assembly.

[0008] Furthermore, a compressed air generator is connected to the air inlet of the air intake channel. The compressed air generated by the compressed air generator is divided into two paths: one path of air directly enters the vacuum generating tube, and the other path of air enters the piston assembly through the air distribution hole.

[0009] Furthermore, the piston assembly has corrugated springs installed on the upper and lower sides of the piston rod and O-rings that contact the corrugated springs. When the O-rings are compressed, they contact the vacuum generator body, thereby forming a sealed negative pressure chamber.

[0010] Furthermore, a suction cup fixing device is also provided inside the vacuum generator body located at the suction cup air inlet and mounting hole. The suction cup fixing device includes a T-shaped pressing shaft installed with an opening from the bottom of the vacuum generator body upward. The upper end of the pressing shaft is connected to a pressing spring. A ball plunger is installed in the mounting hole. A positioning bead provided in the ball plunger is in contact with one side of the pressing shaft.

[0011] Furthermore, a negative pressure monitoring interface is provided on the side of the vacuum generator body located at the suction cup fixing device position. The negative pressure monitoring interface is used to connect and install a negative pressure monitoring device to monitor the negative pressure inside the vacuum generator body.

[0012] Furthermore, the vacuum generator body has three vent holes on the same vertical line on one side of the suction cup fixing device.

[0013] Furthermore, a ball head is installed on the upper connecting section of the vacuum generator body via a threaded connection.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a vacuum generator with a negative pressure monitoring interface, which has the following advantages:

[0016] This vacuum generator with a negative pressure monitoring interface allows for real-time monitoring of the negative pressure inside the vacuum generator by installing a negative pressure monitoring device on the interface. This solves the problem of difficult-to-detect and eliminate air leakage in the vacuum system, ultimately achieving the goals of improving production efficiency and reducing production costs. Attached Figure Description

[0017] Figure 1 This is a perspective view of a vacuum generator with a negative pressure monitoring interface according to the present invention.

[0018] Figure 2 This is a front view of a vacuum generator with a negative pressure monitoring interface according to the present invention;

[0019] Figure 3 for Figure 2 A cross-sectional view of section AA in the image;

[0020] Figure 4 This is a left view of a vacuum generator with a negative pressure monitoring interface according to the present invention;

[0021] Figure 5 for Figure 4 A cross-sectional view of section BB;

[0022] In the diagram: 1. Vacuum generator body; 101. Suction cup slot; 102. Suction cup air inlet; 103. Mounting hole; 104. Air inlet channel; 105. Air distribution hole; 106. Negative pressure chamber; 107. Negative pressure monitoring interface; 108. Vent hole; 2. Vacuum generating tube; 3. Piston assembly; 301. Corrugated spring; 302. O-ring; 4. Suction cup fixing device; 401. Pressing shaft; 402. Pressing spring; 403. Ball head plunger; 404. Positioning bead; 5. Ball head. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5The vacuum generator body 1 has a suction cup slot 101 on its main viewing surface. The suction cup slot 101 has a suction cup air inlet 102 and a mounting hole 103 on the same vertical line. A vacuum generating tube 2 is installed on the left side of the vacuum generator body 1, and an air inlet channel 104 is provided on its right side. A piston assembly 3 is installed on the right side of the vacuum generator body 1 below the air inlet channel 104. An air distribution hole 105 is provided on the inner wall of the air inlet channel 104, communicating with the internal air holes of the piston assembly 3. Corrugated springs 301 are installed on the upper and lower sides of the piston rod of the piston assembly 3, and O-rings 302 are fitted onto the corrugated springs 301. When compressed, the O-rings 302 contact the vacuum generator body 1, forming a sealed negative pressure chamber 106. Compressed air is connected to the air inlet of the air inlet channel 104. The compressed air generated by the compressed air generator is divided into two paths: one path directly enters the vacuum generating tube 2, and the other path enters the piston assembly 3 through the air distribution hole 105. The vacuum generator body 1 is provided with a negative pressure chamber 106, which is connected to the vacuum generating tube 2. The vacuum gas in the negative pressure chamber 106 is converted between positive and negative pressure by the lateral movement of the piston assembly 3. The vacuum generator body 1 located at the suction cup air inlet 102 and the mounting hole 103 is also provided with a suction cup fixing device 4. The suction cup fixing device 4 includes a T-shaped pressing shaft 401 installed with an opening from the bottom of the vacuum generator body 1. The upper end of the pressing shaft 401 is connected to a pressing spring 402. A ball plunger 403 is installed in the mounting hole 103. The positioning bead 404 in the ball plunger 403 is in contact with one side of the pressing shaft 401. A negative pressure monitoring interface 107 is provided on the side of the vacuum generator body 1, located at the suction cup fixing device 4. The negative pressure monitoring interface 107 is used to connect and install a negative pressure monitoring device to monitor the negative pressure inside the vacuum generator body 1. Three vent holes 108 are provided on the side of the vacuum generator body 1, located at the suction cup fixing device 4, on the same vertical line. A ball head 5 is installed on the upper connecting section of the vacuum generator body 1 via a thread.

[0025] The working principle of the above embodiments is as follows:

[0026] During use, the compressed air generator connected to the air inlet of the air inlet channel 104 is opened. The compressed air generated by the compressed air generator is divided into two paths: one path directly enters the vacuum generating tube 2, and the other path enters the piston assembly 3 through the air distribution hole 105. The compressed air entering the vacuum generating tube 2 becomes negative pressure air under the action of the vacuum generating tube 2 and flows towards the suction cup air inlet 102. The compressed air entering the piston assembly 3 compresses the bellows spring 301, causing the O-ring 302 under the piston assembly 3 to contact the vacuum pump. When the air generator body 1 comes into contact, a closed negative pressure chamber 106 is formed. When the air source stops supplying air, the piston assembly 3 will be naturally lifted by the bellows spring 301. At this time, the vacuum environment in the negative pressure chamber 106 is destroyed, and the air will be discharged through the vent hole 108. After the negative pressure chamber 106 is formed, the negative pressure air flows to the suction cup through the suction cup air inlet hole 102 in the vacuum generator body (1). During this process, the negative pressure in the negative pressure chamber 106 can be monitored by the negative pressure monitoring device installed on the negative pressure monitoring interface 107. When the vacuum generator body is connected to the suction cup, the suction cup can be assembled and disassembled through the suction cup fixing device 4. Specifically, the suction cup is pushed into the suction cup slot 101 of the vacuum generator body 1, and the pressing shaft 401 is pressed down at the same time. The pressing shaft 401 compresses the pressing spring 402 and moves upward. The positioning bead 404 placed in the ball plunger 403 falls inward. At this time, the suction cup can be fully pushed into the suction cup slot 101 of the vacuum generator body 1. The pressing shaft 401 is released. Under the action of the pressing spring 402, the pressing shaft 401 will fall quickly. At the same time, the positioning bead 404 will be squeezed upward by the pressing shaft 401, so that the positioning bead 404 is tightly locked in the suction cup, ensuring that the suction cup is tightly connected to the vacuum generator body 1. When disassembling the suction cup, the suction cup can be separated from the vacuum generator body 1 by pressing the pressing shaft 401.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum generator with a negative pressure monitoring interface, comprising a vacuum generator body (1), characterized in that: The front surface of the vacuum generator body (1) is provided with a suction disc clamping groove (101), the suction disc clamping groove (101) is provided with a suction disc air inlet hole (102) and a mounting hole (103) on the same vertical line, the left side of the vacuum generator body (1) is provided with a vacuum generator pipe (2) through hole mounting, and the right side of the vacuum generator body (1) is provided with an air inlet channel (104), the right side of the vacuum generator body (1) is provided with a piston assembly (3) through hole mounting below the air inlet channel (104), the inner wall of the air inlet channel (104) is provided with a gas distribution hole (105), and the gas distribution hole (105) is communicated with the internal hole of the piston assembly (3); the vacuum generator body (1) is provided with a negative pressure cavity (106), the negative pressure cavity (106) is communicated with the vacuum generator pipe (2), and the vacuum gas in the negative pressure cavity (106) is converted by the transverse movement of the piston assembly (3).

2. The vacuum generator with a negative pressure monitoring interface of claim 1, wherein: The air inlet of the air inlet channel (104) is externally connected with a compressed air generating device, the compressed air generated by the compressed air generating device is divided into two paths, one path of air directly enters the vacuum generator pipe (2), and the other path of air enters the inside of the piston assembly (3) through the gas distribution hole (105).

3. The vacuum generator with a negative pressure monitoring interface of claim 1, wherein: The piston rod of the piston assembly (3) is provided with corrugated springs (301) on the upper and lower sides and is sleeved with O-rings (302) in contact with the corrugated springs (301), the O-rings (302) are in contact with the vacuum generator body (1) after being extruded, thereby forming a closed negative pressure cavity (106).

4. The vacuum generator with a negative pressure monitoring interface of claim 1, wherein: The vacuum generator body (1) at the suction disc air inlet hole (102) and the mounting hole (103) is further provided with a suction disc fixing device (4), the suction disc fixing device (4) comprises a T-shaped pressing shaft (401) which is upwardly and hole-mounted from the bottom of the vacuum generator body (1), the upper end of the pressing shaft (401) is connected with a pressing spring (402), a ball head plunger (403) is mounted in the mounting hole (103), and a positioning bead (404) arranged in the ball head plunger (403) is in contact with one side of the pressing shaft (401).

5. The vacuum generator with a negative pressure monitoring interface of claim 4, wherein: The side surface of the vacuum generator body (1) at the position of the suction disc fixing device (4) is provided with a negative pressure monitoring interface (107), and the negative pressure monitoring interface (107) is used for connecting and mounting a negative pressure monitoring device to monitor the negative pressure in the vacuum generator body (1).

6. The vacuum generator with a negative pressure monitoring interface of claim 5, wherein: Three air release holes (108) on the same vertical line are provided beside the position of the suction disc fixing device (4) on the vacuum generator body (1).

7. The vacuum generator with a negative pressure monitoring interface of claim 1, wherein: The upper side connecting section of the vacuum generator body (1) is provided with a ball head (5) through threaded mounting.

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