CN217876304U

CN217876304U - Novel air return prevention exhaust pipe

Info

Publication number: CN217876304U
Application number: CN202221164438.XU
Authority: CN
Inventors: 王炜; 徐惠懂; 高峰; 王献兵; 胡县中
Original assignee: Suzhou Tongguan Microelectronics Co ltd
Current assignee: Suzhou Tongguan Microelectronics Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-11-22
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to a semiconductor production field technical field just discloses a novel air exhaust pipe prevents returning air, including the internal thread pipe, the inner wall screw thread of internal thread pipe has cup jointed the external screw pipe, the fixed cover of outer wall of external screw pipe is equipped with the rotary drum, the lateral wall of rotary drum has been seted up a plurality of spacing holes and has been pegged graft in the spacing hole and have been had the spacer pin, many spacing of outer wall fixedly connected with of internal thread pipe, spacing hole and the three hornblocks of fixedly connected with are stretched out to the upper end of spacer pin, the same first spring of lateral wall fixedly connected with of the relative one side of three hornblocks and rotary drum, a plurality of slip chambeies have been seted up to the inside of rotary drum. The utility model discloses can use exhaust device in the semiconductor workshop, the joint strength of external screw thread pipe and internal thread pipe on the reinforcing exhaust device avoids external screw thread pipe and internal thread pipe to appear becoming flexible, has reduced the potential safety hazard and can stop the small insect and get into the exhaust pipe along the socle.

Description

Novel air return prevention exhaust pipe

Technical Field

The utility model relates to a semiconductor production field technical field especially relates to a novel air return prevention exhaust pipe.

Background

A semiconductor refers to a material having a conductivity between a conductor and an insulator at normal temperature. The semiconductor has wide application in radio, television and temperature measurement. Such as diodes, are devices fabricated using semiconductors. Semiconductor refers to a material whose conductivity can be controlled, ranging from an insulator to a conductor. The importance of semiconductors is enormous, both from a technological and economic point of view. Most of today's electronic products, such as computers, mobile phones or digital audio recorders, have a core unit closely related to semiconductors. The common semiconductor materials are silicon, germanium, gallium arsenide and the like, silicon is the most influential one of various semiconductor materials in commercial application, and the air exhaust device is indispensable equipment in a semiconductor production workshop.

The patent with patent publication number CN 209147384U provides a novel air return preventing exhaust pipe, which comprises a blast cap and a flange; the pipeline is characterized by also comprising a pipeline, wherein the pipeline comprises an external thread pipeline and an internal thread pipeline; the blast cap is provided with a check valve fixing pipe, and a check valve is fixed in the check valve fixing pipe; the check valve fixing pipe is connected to the external thread pipeline; the external thread pipeline is connected with the internal thread pipeline and is in threaded fit with the internal thread pipeline; the tail end of the internal thread pipeline is connected with a flange, and a filter screen is arranged at the circular pipe of the blast cap. The utility model has the advantages that when in use, the length of the pipeline can be adjusted, and the flange side is not influenced to be connected with other pipelines; moreover, the utility model ensures that mosquitoes, insects and the like can not enter the exhaust duct by installing the filter screen, and can avoid the situation that the check valve can not be closed due to the influence of outdoor sundries, such as leaves, and the installed check valve can prevent strong wind and rainwater from flowing backwards; this patent is when using, connects external screw thread pipeline and internal thread pipeline through threaded connection's mode, because the exhaust pipe is great at the during operation vibrations, causes the not hard up of external screw thread pipeline and internal thread pipeline easily, has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art (the disadvantages in the background art are explained in one sentence), and provides a novel air-return-proof exhaust pipe.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a novel air exhaust pipe prevents return air, includes the internal thread pipe, the inner wall screw thread of internal thread pipe has cup jointed the external thread pipe, the fixed cover of outer wall of external thread pipe is equipped with the rotary drum, the lateral wall of rotary drum has been seted up a plurality of spacing holes and has been pegged graft in the spacing hole, many spacing of outer wall fixedly connected with of internal thread pipe, the upper end of spacer pin stretches out spacing hole and three hornblocks of fixedly connected with, the same root first spring of lateral wall fixedly connected with of the relative one side of three hornblocks and rotary drum, a plurality of slip chambeies have been seted up to the inside of rotary drum, the same root second spring of lateral wall fixedly connected with between slip intracavity sliding block and the slip chamber, the lateral wall fixedly connected with deflector of sliding block, the direction opening has been seted up to the lateral wall in slip chamber, the lateral wall fixedly connected with drum that the direction opening was stretched out to the deflector, the outer wall fixed cover of drum is equipped with the pressure cylinder.

Preferably, two of the lateral wall fixedly connected with of rotary drum insert a section of thick bamboo, the inner wall fixedly connected with of drum and the picture peg that inserts a section of thick bamboo and match each other, the inner wall of inserting a section of thick bamboo has been seted up and has been pegged graft in constant head tank and the constant head tank, the equal a plurality of latches of fixedly connected with of lateral wall of the relative one side of locating plate and picture peg, the lateral wall fixedly connected with pull rod of locating plate, the pull rod stretches out the lateral wall fixedly connected with arm-tie of constant head tank, the same root third spring of lateral wall fixedly connected with of the relative one side of arm-tie and an insert section of thick bamboo.

Preferably, the side wall of the pulling plate is fixedly connected with a pulling ring.

Preferably, the inner wall of the outer threaded pipe is fixedly connected with a ring, the inner wall of the outer threaded pipe is hinged with two semicircular plates, and the side wall between each semicircular plate and the ring is fixedly connected with the same fourth spring.

Preferably, the right side of the pressing cylinder is an inclined plane.

Preferably, the cross sections of the limiting hole and the limiting pin are rectangular.

Preferably, the outer wall of the external thread pipe is fixedly sleeved with a dust screen through a bolt.

Preferably, the inner side wall and the outer side wall of the internal thread pipe and the external thread pipe are both sprayed with anticorrosive coatings.

Preferably, the dustproof net is made of copper alloy.

Compared with the prior art, the utility model provides a novel air return prevention exhaust pipe possesses following beneficial effect:

1. this novel air exhaust pipe prevents return air, through the internal thread pipe that sets up, external screw thread pipe, rotary drum, spacing hole, spacer pin, spacing, three hornblocks, first spring, slip chamber, sliding block, second spring, deflector, direction mouth, drum, pressure section of thick bamboo, can use exhaust device in the semiconductor workshop, and the joint strength of external screw thread pipe and internal thread pipe on the reinforcing exhaust device avoids external screw thread pipe and internal thread pipe to appear becoming flexible, has reduced the potential safety hazard.

2. This novel air exhaust pipe prevents return air, through ring, semicircle board, the fourth spring that sets up, can block that the bug gets into the exhaust pipe along the socle.

And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses when can using exhaust device in the semiconductor workshop, the joint strength of external screw thread pipe and internal thread pipe on the reinforcing exhaust device avoids external screw thread pipe and internal thread pipe to appear becoming flexible, has reduced the potential safety hazard and can stop the small insect and get into the exhaust pipe along the socle.

Drawings

Fig. 1 is a schematic structural view of a novel air exhaust pipe for preventing return air provided by the utility model;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

fig. 4 is an enlarged schematic view of a portion C in fig. 1.

In the figure: 1. an internally threaded tube; 2. an externally threaded tube; 3. a rotating drum; 4. a limiting hole; 5. a spacing pin; 6. a limiting strip; 7. a triangular block; 8. a first spring; 9. a sliding cavity; 10. a slider; 11. a second spring; 12. a guide plate; 13. a guide port; 14. a cylinder; 15. pressing the cylinder; 16. inserting a cylinder; 17. inserting plates; 18. positioning a groove; 19. positioning a plate; 20. clamping teeth; 21. a pull rod; 22. pulling a plate; 23. a third spring; 24. a pull ring; 25. a loop; 26. a semicircular plate; 27. a fourth spring; 28. a dust screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Embodiment 1 is as shown in fig. 1-4, a novel air return prevention exhaust pipe, including an internal thread pipe 1, an external thread pipe 2 is sleeved on the inner wall thread of the internal thread pipe 1, an outer wall fixed sleeve of the external thread pipe 2 is provided with a rotary drum 3, a plurality of limiting holes 4 are arranged on the side wall of the rotary drum 3, limiting pins 5 are inserted in the limiting holes 4, a plurality of limiting strips 6 are fixedly connected on the outer wall of the internal thread pipe 1, the upper end of the limiting pins 5 extends out of the limiting holes 4 and is fixedly connected with a triangular block 7, the triangular block 7 and the side wall of the opposite side of the rotary drum 3 are fixedly connected with a same first spring 8, a plurality of sliding cavities 9 are arranged inside the rotary drum 3, a sliding block 10 is slidably connected in the sliding cavity 9, and a same second spring 11 is fixedly connected on the side wall between the sliding block 10 and the sliding cavity 9, a guide plate 12 is fixedly connected on the side wall of the sliding block 10, a guide port 13 is arranged on the side wall of the sliding cavity 9, a cylinder 14 is fixedly connected with a guide plate 12, and a cylinder 14 is fixedly connected on the side wall of the guide plate 12 extending out of the guide port 13, and a pressing cylinder 15 is arranged on the outer wall fixed sleeve of the cylinder 14.

Embodiment 2 is based on embodiment 1 and is shown in fig. 3, the side wall of the rotating cylinder 3 is fixedly connected with two inserting cylinders 16, the inner wall of the cylinder 14 is fixedly connected with an inserting plate 17 matched with the inserting cylinders 16, the inner wall of the inserting cylinder 16 is provided with a positioning groove 18, a positioning plate 19 is inserted in the positioning groove 18, the side walls of the opposite sides of the positioning plate 19 and the inserting plate 17 are fixedly connected with a plurality of latch teeth 20, the side wall of the positioning plate 19 is fixedly connected with a pull rod 21, the side wall of the pull rod 21 extending out of the positioning groove 18 is fixedly connected with a pull plate 22, and the side walls of the opposite sides of the pull plate 22 and the inserting cylinder 16 are fixedly connected with a same third spring 23. The pull plate 22 is convenient to pull by a pull ring 24 fixedly connected to the side wall of the pull plate 22.

Embodiment 3 as shown in fig. 2, on the basis of embodiment 1, a ring 25 is fixedly connected to the inner wall of the external threaded pipe 2, two semicircular plates 26 are hinged to the inner wall of the external threaded pipe 2, and the same fourth spring 27 is fixedly connected to the side wall between the semicircular plates 26 and the ring 25, so that small insects can be prevented from entering the exhaust duct along the duct bottom.

The right side of the pressing cylinder 15 is an inclined surface, so that the triangular block 7 can move downwards to a proper position when the pressing cylinder 15 moves rightwards.

The cross sections of the limiting hole 4 and the limiting pin 5 are rectangular, so that the limiting pin 5 can be prevented from rotating.

The outer wall of the external thread pipe 2 is fixedly sleeved with a dustproof net 28 through bolts, so that the dustproof capacity of the external thread pipe 2 is improved.

The inner and outer side walls of the internal thread pipe 1 and the external thread pipe 2 are both coated with anticorrosive coatings, so that the anticorrosive capacity of the internal thread pipe 1 and the external thread pipe 2 is improved.

The material of the dust screen 28 is copper alloy, so that the service life of the dust screen 28 can be prolonged.

The utility model discloses in, during the use, to the direction pulling drum 14 removal that is close to the cartridge 16, make picture peg 17 insert in the cartridge 16 and utilize latch 20 to fix, press a section of thick bamboo 15 and triangle piece 7 alternate segregation simultaneously, triangle piece 7 drives spacer pin 5 under first spring 8's elasticity and breaks away from between two spacing 6, can rotate internal thread pipe 1 and external thread pipe 2, pulling arm-tie 22, arm-tie 22 drives 19 rebound to suitable position through pull rod 21 locating plate, make both sides latch 20 alternate segregation, sliding block 10 drives drum 14 and presses a section of thick bamboo 15 to move to suitable position under second spring 11's pulling force, through pressing the mutually supporting of a section of thick bamboo 15 and triangle piece 7, make spacer pin 5 insert between two spacing 6, can relative fixation internal thread pipe 1 and external thread pipe 2, the device can be when using exhaust device in the semiconductor production workshop, the joint strength of external thread pipe and internal thread pipe on the reinforcing exhaust device, avoid external thread pipe and internal thread pipe to appear becoming flexible, the potential safety hazard is reduced and can block that the external thread pipe end along the worm exhaust pipe.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel air return prevention exhaust pipe, which comprises an internal threaded pipe (1) and is characterized in that, the inner wall of the internal thread pipe (1) is in threaded sleeve connection with an external thread pipe (2), the outer wall of the external thread pipe (2) is fixedly sleeved with a rotary drum (3), a plurality of limiting holes (4) are arranged on the side wall of the rotary drum (3), limiting pins (5) are inserted in the limiting holes (4), the outer wall of the internal thread pipe (1) is fixedly connected with a plurality of limiting strips (6), the upper end of the limiting pin (5) extends out of the limiting hole (4) and is fixedly connected with a triangular block (7), the side wall of the triangular block (7) opposite to the side wall of the rotary drum (3) is fixedly connected with a same first spring (8), a plurality of sliding cavities (9) are arranged inside the rotary drum (3), a sliding block (10) is connected in the sliding cavity (9) in a sliding way, the side wall between the sliding block (10) and the sliding cavity (9) is fixedly connected with a same second spring (11), the side wall of the sliding block (10) is fixedly connected with a guide plate (12), the side wall of the sliding cavity (9) is provided with a guide opening (13), the side wall of the guide plate (12) extending out of the guide opening (13) is fixedly connected with a cylinder (14), the outer wall of the cylinder (14) is fixedly sleeved with a pressing cylinder (15).

2. The novel air return preventing and exhausting pipe as claimed in claim 1, wherein the two inserting cylinders (16) are fixedly connected to the side wall of the rotating cylinder (3), the inner wall of the cylinder (14) is fixedly connected with the inserting plates (17) which are matched with the inserting cylinders (16), the positioning grooves (18) are formed in the inner wall of the inserting cylinders (16), the positioning plates (19) are inserted in the positioning grooves (18), a plurality of clamping teeth (20) are fixedly connected to the side walls of one opposite side of the positioning plates (19) and the inserting plates (17), the pull rods (21) are fixedly connected to the side walls of the positioning plates (19), the pull plates (22) extend out of the side walls of the positioning grooves (18), and the same third spring (23) is fixedly connected to the side walls of the pull plates (22) and one opposite side of the inserting cylinders (16).

3. The new air return prevention exhaust duct as claimed in claim 2, characterized in that the side wall of the pulling plate (22) is fixedly connected with a pulling ring (24).

4. The novel air return prevention and exhaust duct is characterized in that a ring (25) is fixedly connected to the inner wall of the external threaded pipe (2), two semicircular plates (26) are hinged to the inner wall of the external threaded pipe (2), and the same fourth spring (27) is fixedly connected to the side wall between each semicircular plate (26) and the ring (25).

5. The new air return prevention and exhaust duct as claimed in claim 1, characterized in that the right side of the pressure cylinder (15) is an inclined plane.

6. The novel air return prevention exhaust pipe as claimed in claim 1, wherein the cross sections of the limiting hole (4) and the limiting pin (5) are rectangular.

7. The novel air exhaust pipe of the air return prevention type as claimed in claim 1, wherein the outer wall of the external thread pipe (2) is provided with a dustproof net (28) in a sleeved mode through bolt fixing.

8. The novel air exhaust pipe for preventing return air as claimed in claim 1, characterized in that the inner and outer side walls of the internal thread pipe (1) and the external thread pipe (2) are coated with anticorrosive coatings.

9. The new air return prevention and exhaust duct as claimed in claim 7, characterized in that the dust screen (28) is made of copper alloy.