Vacuum generator convenient to install

Abstract

The utility model relates to the technical field of vacuum generating equipment, and discloses a vacuum generator convenient to install, which comprises a protective shell, a silencer is installed in the protective shell, and a Laval nozzle is installed in the silencer; an air inlet pipe and an air outlet pipe are mounted at the two ends of the protective shell correspondingly, and the air inlet pipe and the air outlet pipe communicate with the Laval nozzle correspondingly; a vacuum pipe is installed on the upper side of the protective shell, and the vacuum pipe sequentially penetrates through the protective shell and the silencer to communicate with the Laval nozzle. Fixed sliding plates are mounted on the two sides of the protective shell correspondingly, fixed sliding grooves in sliding connection are formed in the outer sides of the fixed sliding plates, and fixing holes are fixedly formed in the outer sides of the fixed sliding grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum generating equipment, in particular to a vacuum generator which is easy to install. Background Art

[0002] Vacuum generators are used to create and maintain a vacuum in an enclosed space. They are often used in scientific laboratories, industrial production, medical equipment, and other fields where a low-pressure environment needs to be created in an enclosed space. The working principle of a vacuum generator is usually to reduce the pressure by mechanically, physically, or chemically excluding or absorbing gas molecules in an enclosed space. Such equipment may use a pump or other device to extract gas from a closed container to reduce the pressure to the desired vacuum level. Vacuum generators have important applications in many fields.

[0003] The vacuum generator is generally connected to the pneumatic system. When in use, it needs to be fixed at a specified location through an additional installed mechanism. If it needs to be replaced, it needs to be disassembled. Disassembly may not only cause damage to the vacuum generator, but also reduce work efficiency. Therefore, a vacuum generator that is easy to install is designed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a vacuum generator that is easy to install and has the advantage of being easy to install. It solves the problem of needing to disassemble the vacuum generator when it needs to be replaced, which may not only cause damage to the vacuum generator but also reduce work efficiency.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of easy installation, the utility model provides the following technical solutions: a vacuum generator that is easy to install, comprising a protective shell, a muffler is installed inside the protective shell, and a Laval nozzle is installed inside the muffler; an air inlet pipe and an air outlet pipe are respectively installed at both ends of the protective shell, and the air inlet pipe and the air outlet pipe are respectively connected with the Laval nozzle; a vacuum tube is installed on the upper side of the protective shell, and the vacuum tube passes through the protective shell and the muffler in sequence and is connected with the Laval nozzle; fixed sliding plates are respectively installed on both sides of the protective shell, and a slidingly connected fixed sliding groove is installed on the outer side of the fixed sliding plate, and a fixed hole is fixedly installed on the outer side of the fixed sliding groove. The air inlet pipe and the air outlet pipe at both ends of the protective shell are connected to the corresponding equipment respectively, and the negative pressure difference between the Laval nozzle and the outside world is accelerated near the vacuum port inside, so that the vacuum tube is sucked inward. The muffler is arranged between the protective shell and the Laval nozzle. It is not only used to support the placement of the Laval nozzle, but also used to reduce the sound generated by the Laval nozzle. By extracting the air inside the Laval nozzle, the internal pressure is reduced, thereby generating a stronger attraction at the vacuum tube. When it is needed, it is only necessary to connect the air inlet pipe and the air outlet pipe to the corresponding equipment respectively, and then use the fixed sliding plate and the fixed sliding groove in coordination. The fixed sliding groove is fixedly installed in a certain area through the fixed hole, and the fixed sliding plate drives the protective shell to be installed inside the fixed sliding groove, which is easy to install.

[0008] Preferably, the inner wall of the fixed sliding groove is provided with a fixed block, and the inner wall of the fixed sliding plate is provided with a fixed groove used in conjunction with the fixed block. The fixed block provided on the inner wall of the fixed sliding plate is inserted into the fixed groove so that it will not fall off, which facilitates the installation of the fixed sliding plate on the inner wall of the fixed sliding groove, and the fixed groove and the fixed block are mainly used to limit the position of the protective shell.

[0009] Preferably, a magnet block is fixedly mounted on the inner wall of the fixed sliding groove, and the magnet block is magnetically connected to one side of the fixed sliding plate. When the fixed sliding plate is inserted into the inner wall of the fixed sliding groove, the magnet block can fix it in a suitable position so that it will not fall off easily, and the magnet block can also strengthen the connection between the fixed sliding groove and the fixed sliding plate.

[0010] Preferably, a protective member is installed inside the air inlet pipe, and a dust net is fixedly installed on the inner wall of the protective member. The air may contain dust, which may affect the normal operation of the Laval nozzle. The dust net is used to reduce the dust from entering the Laval nozzle, so that the inside of the Laval nozzle is kept clean. The protective member drives the Laval nozzle to move, so that the protective net can be taken out and replaced.

[0011] Preferably, a support frame is installed on the lower side of the air inlet pipe, and one end of the support frame is fixedly connected to one side of the protective shell;

[0012] The lower side of the protective member contacts the inner wall of the support frame, and a protrusion is fixedly installed on the outer side of the protective member. The support frame is used to protect and support the protective member so that it can be fully installed inside the air intake pipe.

[0013] Preferably, a vacuum port is provided on the upper side of the Laval nozzle, and the lower end of the vacuum tube passes through the vacuum port and is connected to the Laval nozzle. A suction cup or other mechanism may be installed on the upper end of the vacuum tube, and negative pressure will be generated at the vacuum port during normal operation, so that the vacuum tube can suck air into the interior.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a vacuum generator that is easy to install and has the following beneficial effects: this vacuum generator that is easy to install is connected to corresponding devices through the air inlet pipe and the air outlet pipe at both ends of the protective shell. It is only necessary to connect the air inlet pipe and the air outlet pipe with the corresponding devices respectively, and then through the cooperation between the fixed sliding plate and the fixed sliding groove, the fixed sliding groove is fixedly installed in a certain area through the fixed hole, and the fixed sliding plate drives the protective shell to be installed inside the fixed sliding groove, thereby achieving the effect of easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the utility model;

[0018] Figure 3 This is a structural diagram of the Laval nozzle of the utility model;

[0019] Figure 4 This is a structural diagram of the protective housing of the utility model;

[0020] Figure 5 It is a structural diagram of the air intake pipe of the utility model.

[0021] In the figure: 1. Protective shell; 2. Support frame; 3. Inlet pipe; 4. Exhaust pipe; 5. Vacuum tube; 6. Fixed sliding groove; 7. Fixed sliding plate; 8. Fixed hole; 9. Muffler; 10. Laval nozzle; 11. Protective part; 12. Vacuum port; 13. Fixed groove; 14. Fixed block; 15. Magnet block; 16. Protrusion; 17. Dust net. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: See Figure 1-5 A vacuum generator that is easy to install includes a protective shell 1, a muffler 9 is installed inside the protective shell 1, and a Laval nozzle 10 is installed inside the muffler 9; an air inlet pipe 3 and an air outlet pipe 4 are installed at both ends of the protective shell 1, and the air inlet pipe 3 and the air outlet pipe 4 are connected with the Laval nozzle 10 respectively; a vacuum tube 5 is installed on the upper side of the protective shell 1, and the vacuum tube 5 passes through the protective shell 1 and the muffler 9 in sequence and is connected with the Laval nozzle 10; fixed sliding plates 7 are installed on both sides of the protective shell 1, and a slidingly connected fixed sliding groove 6 is installed on the outer side of the fixed sliding plate 7, and a fixed hole 8 is fixedly installed on the outer side of the fixed sliding groove 6.

[0024] Among them, the air inlet pipe 3 and the air outlet pipe 4 at both ends of the protective shell 1 are respectively connected to the corresponding equipment, and the negative pressure difference between the Laval nozzle 10 and the outside is accelerated near the vacuum port 12, so that the vacuum tube 5 is sucked inward. The muffler 9 is arranged between the protective shell 1 and the Laval nozzle 10. It is not only used to support and place the Laval nozzle 10, but also used to reduce the sound generated by the Laval nozzle 10. By extracting the air inside the Laval nozzle 10, the internal pressure is reduced, so that a strong attraction is generated at the vacuum tube 5. When it is needed, it is only necessary to connect the air inlet pipe 3 and the air outlet pipe 4 with the corresponding equipment respectively, and then use the fixed sliding plate 7 and the fixed sliding groove 6 in coordination. The fixed sliding groove 6 is fixedly installed in a certain area through the fixed hole 8, and the fixed sliding plate 7 drives the protective shell 1 to be installed inside the fixed sliding groove 6, which is easy to install.

[0025] A fixing block 14 is provided on the inner wall of the fixed sliding groove 6 , and a fixing groove 13 used in conjunction with the fixing block 14 is provided on the inner wall of the fixed sliding plate 7 .

[0026] Among them, the fixed block 14 set on the inner wall of the fixed sliding plate 7 is inserted into the fixed groove 13 to prevent it from falling, making it easy to install the fixed sliding plate 7 on the inner wall of the fixed sliding groove 6. The fixed groove 13 and the fixed block 14 are mainly used to limit the position of the protective shell 1.

[0027] A magnet block 15 is fixedly mounted on the inner wall of the fixed sliding groove 6 , and the magnet block 15 is magnetically connected to one side of the fixed sliding plate 7 .

[0028] When the fixed sliding plate 7 is inserted into the inner wall of the fixed sliding groove 6 , the magnet block 15 can fix it in a suitable position so that it will not fall off easily. At the same time, the magnet block 15 can also strengthen the connection between the fixed sliding groove 6 and the fixed sliding plate 7 .

[0029] A protective member 11 is installed inside the air inlet pipe 3 , and a dustproof net 17 is fixedly installed on the inner wall of the protective member 11 .

[0030] The air may contain dust, which may affect the normal operation of the Laval nozzle 10. The dust-proof net 17 is used to reduce the dust from entering the Laval nozzle 10 to keep the inside clean. The protective member 11 drives the Laval nozzle 10 to move, so that the protective net 17 can be removed and replaced easily.

[0031] A support frame 2 is installed on the lower side of the air inlet pipe 3, and one end of the support frame 2 is fixedly connected to one side of the protective shell 1; the lower side of the protective member 11 contacts the inner wall of the support frame 2, and a protrusion 16 is fixedly installed on the outer side of the protective member 11.

[0032] The support frame 2 is used to protect and support the protective member 11 so that the protective member 11 can be fully installed inside the air intake pipe 3 .

[0033] A vacuum port 12 is provided on the upper side of the Laval nozzle 10 , and the lower end of the vacuum tube 5 passes through the vacuum port 12 and is in communication with the Laval nozzle 10 .

[0034] A suction cup or other mechanism may be installed at the upper end of the vacuum tube 5 , and negative pressure may be generated at the vacuum port 12 during normal operation, so that the vacuum tube 5 can suck air into the interior.

[0035] Working principle: the air inlet pipe 3 and the air outlet pipe 4 at both ends of the protective shell 1 are connected to the corresponding equipment respectively. The air may contain dust, which will affect the normal operation of the Laval nozzle 10. The dust net 17 is used to reduce the dust from entering the Laval nozzle 10 to keep the inside clean. The protective part 11 drives the Laval nozzle 10 to move, so that the protective net 17 can be taken out and replaced easily. The inside of the Laval nozzle 10 is accelerated to form a negative pressure difference with the outside world near the vacuum port 12, so that the vacuum tube 5 is attracted inward. The muffler 9 is arranged between the protective shell 1 and the Laval nozzle 10. It is not only used to support and place the Laval nozzle 10, but also used to reduce the sound generated by the Laval nozzle 10. By extracting the Laval nozzle 10, the vacuum tube 5 is sucked inward. The air inside the Val nozzle 10 reduces the internal pressure, thereby generating a stronger attraction at the vacuum tube 5. When it is needed, it is only necessary to connect the air inlet pipe 3 and the air outlet pipe 4 with the corresponding equipment respectively, and then use the fixed sliding plate 7 and the fixed sliding groove 6 in coordination. The fixed sliding groove 6 is fixedly installed in a certain area through the fixed hole 8. The fixed sliding plate 7 drives the protective shell 1 to be installed inside the fixed sliding groove 6. When the fixed sliding plate 7 is inserted into the inner wall of the fixed sliding groove 6, the magnet block 15 can fix it in a suitable position so that it will not fall off easily. At the same time, the magnet block 15 can also strengthen the connection between the fixed sliding groove 6 and the fixed sliding plate 7, which is convenient for installation.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum generator that is easy to install, comprising a protective housing (1), characterized in that: A muffler (9) is installed inside the protective housing (1), and a Laval nozzle (10) is installed inside the muffler (9); An air inlet pipe (3) and an air outlet pipe (4) are respectively installed at both ends of the protective housing (1), and the air inlet pipe (3) and the air outlet pipe (4) are respectively connected to a Laval nozzle (10); A vacuum tube (5) is installed on the upper side of the protective shell (1), and the vacuum tube (5) sequentially passes through the protective shell (1) and the muffler (9) and is connected to the Laval nozzle (10); Fixed sliding plates (7) are respectively installed on both sides of the protective housing (1), and a slidably connected fixed sliding groove (6) is installed on the outer side of the fixed sliding plate (7), and a fixed hole (8) is fixedly installed on the outer side of the fixed sliding groove (6).

2. A vacuum generator that is easy to install according to claim 1, characterized in that: The inner wall of the fixed sliding groove (6) is provided with a fixed block (14), and the inner wall of the fixed sliding plate (7) is provided with a fixed groove (13) used in conjunction with the fixed block (14).

3. A vacuum generator that is easy to install according to claim 2, characterized in that: A magnet block (15) is fixedly mounted on the inner wall of the fixed sliding groove (6), and the magnet block (15) is magnetically connected to one side of the fixed sliding plate (7).

4. The vacuum generator that is easy to install according to claim 1, characterized in that: A protective member (11) is installed inside the air intake pipe (3), and a dustproof net (17) is fixedly installed on the inner wall of the protective member (11).

5. A vacuum generator that is easy to install according to claim 4, characterized in that: A support frame (2) is installed on the lower side of the air inlet pipe (3), and one end of the support frame (2) is fixedly connected to one side of the protective shell (1); The lower side of the protective member (11) contacts the inner wall of the support frame (2), and a protrusion (16) is fixedly mounted on the outer side of the protective member (11).

6. The vacuum generator that is easy to install according to claim 1, characterized in that: A vacuum port (12) is provided on the upper side of the Laval nozzle (10), and the lower end of the vacuum tube (5) passes through the vacuum port (12) and is in communication with the Laval nozzle (10).

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