CN218408899U

CN218408899U - Straight tube type vacuum generator

Info

Publication number: CN218408899U
Application number: CN202222255424.5U
Authority: CN
Inventors: 林南翔; 林亦琦; 林南怀
Original assignee: Wenzhou Jinye Pneumatic Technology Co ltd
Current assignee: Wenzhou Jinye Pneumatic Technology Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-01-31
Anticipated expiration: 2032-08-25

Abstract

The application relates to the field of vacuum generators, and particularly discloses a straight tube type vacuum generator which comprises a vacuum generator body, a quick connector and a connecting assembly. The air inlet end of the vacuum generator body is provided with an air inlet pipe, inner threads and outer threads are respectively arranged on the inner wall and the outer wall of the air inlet pipe, the inner threads can be connected with a threaded rigid air pipe arranged on the outer wall, the outer threads can be connected with a hose arranged on the inner wall and provided with a threaded rigid air pipe and a nut, and meanwhile, the quick connector is connected with the rigid air pipe which can be adapted to the non-threads on the air inlet pipe. This application has the effect of enlarging the adaptation scope of vacuum generator to the trachea.

Description

Straight tube type vacuum generator

Technical Field

The application relates to the field of vacuum generators, in particular to a straight-tube type vacuum generator.

Background

The vacuum generator has the advantages of small volume, light weight, quick vacuum generation, few moving parts, convenient control, simple structure and the like, has incomparable advantages in occasions of carrying articles which are difficult to carry by the conventional method, articles which are easy to generate stress deformation and tiny articles, and plays an increasingly important role in automatic production.

In the related art, chinese patent No. CN208749687U discloses a vacuum generator for experiments, which is divided into an air intake and suction part, a mixing part and an exhaust part, wherein the air intake and suction part is provided with an air intake and an air intake, the exhaust part is provided with an exhaust port, and the air intake, the air intake and the exhaust port are sealed internal threads and can be connected with corresponding external threads.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: the sealed internal thread adopted by the vacuum generator in the related art only can be connected with a hard pipe provided with a corresponding external thread, so that the adaptability is poor and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to expand the adaptation range of the vacuum generator, the application provides a straight tube type vacuum generator.

The application provides a straight tube type vacuum generator adopts following technical scheme:

the straight tube type vacuum generator comprises a vacuum generator body, wherein an air inlet tube is arranged at the air inlet end of the vacuum generator body, an inner cavity of the air inlet tube is communicated with an inner cavity of the vacuum generator, external threads are formed in the outer wall of the air inlet tube, a quick connector is arranged on the air inlet tube, a nut is arranged at one end, away from an interface, of the quick connector, and the nut is connected with the external threads.

Through the technical scheme, when the vacuum generator body is connected with the hard pipe with the threads on the inner wall, the vacuum generator body can be directly connected with the hard pipe through the external threads on the air inlet pipe; when the vacuum generator body is connected with a hose additionally provided with a screw cap, the screw cap is connected with the external thread so as to connect the hose with the air inlet pipe; when the vacuum generator body is connected with the unthreaded hard tube, the quick connector is connected to the air tube firstly, and then the unthreaded hard tube is inserted into the quick connector to complete connection. This application vacuum generator can connect multiple type of trachea, has enlarged vacuum generator's adaptation scope.

Optionally, an inner thread is formed on the inner wall of the air inlet pipe.

Through adopting above-mentioned technical scheme, when the screwed hard tube on the outer wall was connected to vacuum generator, the internal thread on the intake pipe inner wall can be connected with it, has further enlarged this application vacuum generator's adaptation scope.

Optionally, a sealing ring is arranged on the end face of the quick connector close to the nut, the sealing ring is located in the nut, and the sealing ring abuts against the air inlet pipe.

Through adopting above-mentioned technical scheme, be close to vacuum generator's terminal surface direct conflict with quick-operation joint for rigid intake pipe, the laminating of flexible sealing washer and intake pipe is inseparabler, has improved the gas tightness, helps maintaining the stability of the port internal gas pressure of intake pipe.

Optionally, an annular inclined surface is arranged between the end face, far away from the vacuum generator body, of the air inlet pipe and the outer wall of the air inlet pipe, and the annular inclined surface is abutted to the sealing ring.

Through adopting above-mentioned technical scheme, when the sealing washer received annular inclined plane extrusion, annular inclined plane guided the sealing washer to make the sealing washer towards the direction deformation of keeping away from the intake pipe axis, avoided as far as possible because of the sealing washer influences gas flow in the passageway of intake pipe deformation, reduced the influence that the sealing washer deformation caused gas flow.

Optionally, be equipped with coupling assembling between vacuum generator body and the quick-operation joint, coupling assembling is including connecting the rope, the both ends of connecting the rope set up respectively on vacuum generator body and quick-operation joint.

Through adopting above-mentioned technical scheme, when quick-operation joint was not connected with the intake-tube, vacuum generator body still can keep connected state through coupling assembling with quick-operation joint, avoids quick-operation joint to lose as far as possible.

Optionally, a sliding ring guiding groove is formed in the quick connector, the connecting assembly further comprises a sliding piece and a hanging ring arranged on the main body of the vacuum generator, the end portion of the sliding piece is slidably arranged in the sliding ring guiding groove, one end of the connecting rope is connected with the sliding piece, and the other end of the connecting rope is connected with the hanging ring.

Through adopting above-mentioned technical scheme, the slider freely slides in leading the sliding ring inslot, connects the one end of connecting the rope on the slider, need rotate quick-operation joint when installation or dismantlement quick-operation joint, and this in-process slider can carry out slide adjusting in leading the sliding ring inslot, has avoided the condition of connecting the rope winding quick-operation joint to take place as far as possible.

Optionally, the slider includes U type piece and two sliders of connecting respectively at U type piece both ends, U type piece is connected with the one end of being connected the rope, U type piece can deform, respectively be equipped with an annular dog on two relative cell walls of leading the sliding ring groove, the interval of two annular dogs is less than the maximum interval of two sliders, the interval of annular dog is greater than the difference of the maximum interval and the minimum interval of two sliders.

Through adopting above-mentioned technical scheme, the staff need with forefinger and middle finger pinch U type piece both sides so that the both ends of U type piece are inwards deformed to make two sliders be close to each other, when the maximum interval of two sliders dwindled to be less than the interval of two annular separation blades, two sliders can with pass between the two annular separation blades, realized slider and lead the installation and the separation of sliding ring groove, borrow this quick-operation joint that can change not unidimensional, further enlarged vacuum generator's adaptation scope.

Optionally, the length of the sliding block in the sliding direction is greater than the distance between the two annular stoppers.

By adopting the technical scheme, the length of the sliding block in the sliding direction is increased, so that the sliding block is difficult to rotate in the guide sliding ring groove, and the sliding piece is more stably matched with the guide sliding ring groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the external thread and the internal thread of the air inlet pipe can be respectively connected with different types of air pipes, and meanwhile, the external thread can also be connected with a quick connector, the quick connector can be connected with a non-threaded hard pipe and can be replaced by detaching a sliding part, so that the adaptation range of the vacuum generator is expanded;

2. by adopting the technical scheme, when the vacuum generator does not work or the air inlet pipe is independently connected with the air pipe, the vacuum generator body and the quick connector can still be kept in a connection state through the connecting component, so that the quick connector is prevented from being lost;

3. one side of the quick connector, which is close to the nut, is provided with the sealing ring, so that the air tightness of the air inlet pipe when being connected with the quick connector is improved, the air leakage is reduced, and the air pressure in the air inlet end is stabilized.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is an exploded view of the removal of a connection assembly in an embodiment of the present application.

Fig. 3 is an exploded view of the embodiment of the present application highlighting the quick connector and slider.

Description of the reference numerals:

1. a vacuum generator body; 11. an air inlet pipe; 111. an external thread; 112. an internal thread; 113. an annular inclined plane; 2. a quick coupling; 21. a nut; 22. a sliding guide ring groove; 23. an annular stop block; 3. a connecting assembly; 31. a slider; 311. a U-shaped block; 312. a slider; 32. connecting ropes; 33. hanging a ring; 4. and (5) sealing rings.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a straight tube type vacuum generator. Referring to fig. 1, the straight tube type vacuum generator includes a vacuum generator body 1, a quick coupling 2, and a connecting assembly 3 for connecting the vacuum generator body 1 and the quick coupling 2.

Referring to fig. 2, the air inlet end of the vacuum generator body 1 is integrally formed with an air inlet pipe 11, the inner diameter of the air inlet pipe 11 is larger than that of the quick coupling 2, and the inner cavity of the air inlet pipe 11 is communicated with the quick coupling 2 and the inner cavity of the vacuum generator body 1. An external thread 111 is formed on the outer wall of the air inlet pipe 11, and an internal thread 112 is formed on the inner wall of the air inlet pipe 11. An annular inclined surface 113 is arranged between the end face, far away from the vacuum generator body 1, of the air inlet pipe 11 and the outer wall of the air inlet pipe 11, and the distance between the annular inclined surface 113 and the central axis of the air inlet pipe 11 increases progressively along the direction from the air inlet pipe 11 to the vacuum generator body 1.

Referring to fig. 2 and 3, a nut 21 is arranged at one end of the quick coupling 2 away from the self interface, and the inner diameter of the nut 21 is larger than that of the quick coupling 2. And a sealing ring 4 is fixed on the end surface of the quick connector 2 close to the nut 21. The sealing ring 4 is positioned in the nut 21, the inner diameter of the sealing ring 4 is slightly larger than that of the quick coupling 2, and the outer diameter of the sealing ring 4 is slightly smaller than that of the nut 21. The sealing ring 4 is made of elastic rubber, and the annular inclined surface 113 abuts against the sealing ring 4 and deforms the sealing ring 4. The outer wall of the quick coupling 2 is provided with a sliding guide ring groove 22, and the sliding guide ring groove 22 extends around the axis of the quick coupling 2. Two opposite groove walls of the sliding guide ring groove 22 are respectively provided with an annular stop dog 23, and the two annular stop dogs 23 reduce the opening of the sliding guide ring groove 22.

Referring to fig. 1 and 3, the connecting assembly 3 includes a slider 31, a connecting rope 32, and a suspension loop 33. The sliding member 31 includes a U-shaped block 311 and two sliding blocks 312, the U-shaped block 311 is made of deformable plastic, and the two sliding blocks 312 are respectively integrally formed at two ends of the U-shaped block 311. The maximum distance between the two sliding blocks 312 is larger than the distance between the two annular stop blocks 23, and the difference between the maximum distance and the minimum distance between the two sliding blocks 312 is smaller than the distance between the two annular stop blocks 23.

Referring to fig. 2 and 3, the hanging ring 33 is integrally formed on the vacuum generator body 1. Connect the one end and the link 33 of rope 32 and be connected, connect the other end and the U type piece 311 of rope 32 and be connected, connect rope 32 and link 33 and connect the connected mode of rope 32 and U type piece 311 and include couple, knot etc. in this application embodiment, connect rope 32 and link 33 and connect the mode connection that adopts the couple between rope 32 and the U type piece 311.

Referring to fig. 2 and 3, the operator pinches the U-shaped block 311 with the forefinger and the thumb to bend and deform the U-shaped block, so that the maximum distance between the two sliding blocks 312 can be reduced. Because the difference between the maximum distance and the minimum distance of the two sliding blocks 312 is smaller than the distance between the two annular stop blocks 23, when the maximum distance between the two sliding blocks 312 is reduced to be smaller than the distance between the two annular stop blocks 23, the two sliding blocks 312 can be taken out of the sliding guide ring groove 22, and the quick coupling 2 and the coupling assembly 3 can be separated; when staff installation quick-operation joint 2, earlier aim at nut 21 with intake pipe 11, then rotate quick-operation joint 2, support tight sealing washer 4 until intake pipe 11, can be connected quick-operation joint 2 and coupling assembling 3.

The straight tube type vacuum generator in the embodiment of the application has the implementation principle that:

when the vacuum generator is connected with the air pipe, the vacuum generator body 1 can be directly connected with a hard pipe with threads on the inner wall through the external threads 111 on the air inlet pipe 11; when the vacuum generator is connected with a hard pipe with threads on the outer wall, the internal threads 112 on the inner wall of the air inlet pipe 11 can be connected with the hard pipe; when the vacuum generator body 1 is connected with a hose additionally provided with a screw cap, the screw cap is connected with the external thread 111, so that the hose is connected with the air inlet pipe 11; when the vacuum generator body 1 is connected with the unthreaded hard tube, the quick connector 2 is connected with the air tube firstly, and then the unthreaded hard tube is inserted into the quick connector 2 to complete connection. This application vacuum generator can connect more various trachea, has enlarged vacuum generator's adaptation scope.

The sliding piece 31 can be taken out of the quick connector 2, so that the quick connector 2 with different sizes can be replaced, and the adaptation range of the vacuum generator is further expanded.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A straight tube type vacuum generator comprising a vacuum generator body (1), characterized in that: be equipped with intake pipe (11) on the inlet end of vacuum generator body (1), the inner chamber and the inner chamber intercommunication of vacuum generator of intake pipe (11), external screw thread (111) have been seted up on the outer wall of intake pipe (11), be provided with quick-operation joint (2) on intake pipe (11), the one end that self interface was kept away from in quick-operation joint (2) is equipped with nut (21), nut (21) are connected with external screw thread (111).

2. The straight tube type vacuum generator according to claim 1, wherein: the inner wall of the air inlet pipe (11) is provided with an internal thread (112).

3. The straight tube type vacuum generator according to claim 1, wherein: the quick connector (2) is provided with a sealing ring (4) on the end face close to the nut (21), the sealing ring (4) is located in the nut (21), and the sealing ring (4) abuts against the air inlet pipe (11).

4. A straight tube type vacuum generator according to claim 3, characterized in that: the air inlet pipe (11) is far away from an annular inclined surface (113) arranged between the end surface of the vacuum generator body (1) and the outer wall of the air inlet pipe (11), and the annular inclined surface (113) is abutted to the sealing ring (4).

5. The straight tube type vacuum generator according to claim 1, wherein: be equipped with coupling assembling (3) between vacuum generator body (1) and quick-operation joint (2), coupling assembling (3) are including connecting rope (32), the both ends of connecting rope (32) set up respectively on vacuum generator body (1) and quick-operation joint (2).

6. The straight tube type vacuum generator according to claim 5, wherein: seted up on quick-operation joint (2) and led sliding ring groove (22), coupling assembling (3) still include slider (31) and link (33) of setting in the vacuum generator main part, the tip of slider (31) slides and sets up in leading sliding ring groove (22), it is connected with slider (31) to connect rope (32) one end, it is connected with link (33) to connect rope (32) other end.

7. The straight tube type vacuum generator according to claim 6, wherein: slider (31) include U type piece (311) and two slider (312) of connecting respectively at U type piece (311) both ends, U type piece (311) are connected with the one end of being connected rope (32), U type piece (311) can deform, respectively be equipped with an annular dog (23) on two relative cell walls of leading sliding ring groove (22), the interval of two annular dogs (23) is less than the maximum interval of two slider (312), the interval of annular dog (23) is greater than the difference of the maximum interval and the minimum interval of two slider (312).

8. The straight tube type vacuum generator according to claim 7, wherein: the length of the sliding block (312) in the sliding direction is larger than the distance between the two annular stop blocks (23).