CN212839431U

CN212839431U - Inside and outside zero leakage linear biological valve

Info

Publication number: CN212839431U
Application number: CN202021838769.8U
Authority: CN
Inventors: 池辉; 徐忠; 陆巍
Original assignee: Shanghai Shinelong Air Conditioning Co ltd
Current assignee: Shanghai Shinelong Air Conditioning Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-03-30
Anticipated expiration: 2030-08-28

Abstract

A linear biological valve with zero internal and external leakage comprises a valve body, wherein a mechanism seat is arranged above the valve body, a rear support is arranged on the rear side surface of the valve body, a gear seat is fixedly arranged in the rear support, a driving shaft is movably connected with the gear seat through a bearing, and a first helical gear is arranged on the outer surface of the driving shaft; the middle of the front side surface of the valve body is fixedly provided with a door frame, the inner side surface of the door frame is fixedly provided with a pressing block, the inside of the pressing block is movably connected with a screw rod, the screw rod penetrates through a gear seat and is fixedly connected with a second helical gear, the surface of the screw rod is movably connected with a screw rod nut, two ends of the screw rod nut are provided with hinge plates, and the hinge plates are respectively and fixedly arranged on two; a door shaft is installed on one side of the valve plate, and two ends of the door shaft are connected in the sliding rail in a sliding mode through guide sliding blocks. The utility model overcomes prior art's is not enough, makes the interior volume of leaking wind of valve reach zero leakage, and the valve body outside reaches zero and reveals, and poisonous and harmful gas can not leak from the valve body, reduces environmental pollution.

Description

Inside and outside zero leakage linear biological valve

Technical Field

The utility model relates to a biological valve technical field, concretely relates to inside and outside zero leakage linear type biological valve.

Background

At present, the general valve blade action in China adopts the rotation action, but the torque is small due to the rotation action, the torque is insufficient when the valve is closed, the inner door of the valve cannot be compressed, the air leakage rate cannot be strictly controlled, a large amount of gas leaks from gaps between the blades of the valve and the blades, energy is seriously wasted, and toxic gas in the air pipe leaks, so that serious environmental hazard and personal safety are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an inside and outside zero leaks linear type biological valve has overcome the not enough of prior art, and reasonable in design makes the interior hourglass amount of wind of valve reach zero leakage, and the valve body outside reaches zero and reveals, and poisonous and harmful gas can not leak from the valve body, reduces environmental pollution.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the linear biological valve with zero internal and external leakage comprises a valve body, wherein a mechanism seat is fixedly arranged above the valve body, the mechanism seat is movably connected with one end of a driving shaft, a rear bracket is fixedly arranged in the middle of the rear side surface of the valve body, a gear seat is fixedly arranged in the rear bracket, the other end of the driving shaft sequentially penetrates through the upper surface of the valve body and the gear seat and is movably connected with the gear seat through a bearing, and a first helical gear is fixedly arranged on the outer surface of the driving shaft; the middle of the front side face of the valve body is fixedly provided with a door frame, the inner side face of the door frame is fixedly provided with a pressing block, one end of a screw rod is movably connected in the pressing block through a bearing, the other end of the screw rod penetrates through a gear seat and is fixedly connected with a second helical gear, the first helical gear is in transmission connection with the second helical gear, the surface of the screw rod is movably connected with a screw nut through threads, two ends of the screw nut are rotatably connected with hinge plates through rotating shafts, the hinge plates are respectively and fixedly arranged on two valve plates, and the valve plates are in sealing contact with the door; one side of the valve plate, which is far away from the screw rod nut, is fixedly provided with a door spindle, the upper end and the lower end of the door spindle are fixedly provided with guide sliding blocks, the upper surface and the lower surface of the inner cavity of the valve body are fixedly provided with sliding rails, and the guide sliding blocks are connected in the sliding rails in a sliding mode.

Preferably, the outer surface edge position of valve board is provided with the seal groove, fixed mounting has the sealing strip in the seal groove, valve board passes through sealing strip and door frame sealing contact.

Preferably, both ends are all through fixed foot and the upper surface and the lower surface fixed connection of valve body inner chamber about the after-poppet.

Preferably, the valve body upper surface fixed mounting has the shaft cover, the inside fixed mounting of shaft cover has the sealing washer, the shaft cover passes through sealing washer and drive shaft sealing connection.

Preferably, the pressing block, the screw rod, the first bevel gear and the second bevel gear are provided with two groups.

Preferably, the valve plate is uniformly and fixedly provided with reinforcing ribs on the inner surface, and the reinforcing ribs are vertically and fixedly connected with the hinge plate.

Preferably, a differential pressure pipe is fixedly arranged above the front side of the valve body.

The utility model provides an inside and outside zero leakage linear type biological valve. The method has the following beneficial effects: the screw rod is driven by the transmission action of the first bevel gear and the second bevel gear to convert the rotary action into linear action, and the inner door of the valve is tightly pressed against the door frame by using a driving force, so that the inner airflow and the outer airflow cannot be in series flow; and the utility model discloses a drive shaft is connected with the valve body through the bearing to guarantee that the drive shaft can not appear under the condition of rotating for ten thousand times in the bearing that the shell wearing and tearing of drive shaft and valve body lead to the too big unable regulation in clearance yet, and the rotatory moment of torsion of drive shaft is less than the moment of torsion of drive shaft direct mount on the shell far away, so the rotatory moment of torsion to a great extent of valve plate has obtained the reduction, makes it adjust more in a flexible way, and the valve plate joins in marriage the cylinder moment of torsion littleer, and use cost is lighter.

Drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the back of the present invention;

FIG. 3 is a schematic view of the internal expanded structure of the present invention;

FIG. 4 is a cross-sectional view of the present invention;

the reference numbers in the figures illustrate:

1. a valve body; 2. a mechanism seat; 3. a drive shaft; 4. a rear bracket; 5. a gear seat; 6. a first helical gear; 7. a door frame; 8. briquetting; 9. a screw rod; 10. a second helical gear; 11. a feed screw nut; 12. a hinge plate; 13. a valve plate; 14. a door shaft; 15. a guide slider; 16. a slide rail; 17. a sealing strip; 18. a fixing leg; 19. a shaft cover; 20. reinforcing ribs; 21. a differential pressure tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.

In the first embodiment, as shown in fig. 1 to 4, an internal and external zero-leakage linear biological valve comprises a valve body 1, a mechanism seat 2 is fixedly mounted above the valve body 1, the mechanism seat 2 is movably connected with one end of a driving shaft 3, a rear support 4 is fixedly mounted in the middle of the rear side surface of the valve body 1, a gear seat 5 is fixedly mounted in the rear support 4, the other end of the driving shaft 3 sequentially penetrates through the upper surface of the valve body 1 and the gear seat 5 and is movably connected with the gear seat 5 through a bearing, and a first helical gear 6 is fixedly mounted on the outer surface of the driving shaft 3; a door frame 7 is fixedly installed in the middle of the front side face of the valve body 1, a pressing block 8 is fixedly installed on the inner side face of the door frame 7, one end of a screw rod 9 is movably connected in the pressing block 8 through a bearing, the other end of the screw rod 9 penetrates through a gear seat 5 and is fixedly connected with a second bevel gear 10, a first bevel gear 6 is in transmission connection with the second bevel gear 10, a screw rod nut 11 is movably connected on the surface of the screw rod 9 through threads, two ends of the screw rod nut 11 are rotatably connected with hinge plates 12 through rotating shafts, the hinge plates 12 are respectively and fixedly installed on two valve plates 13, and the valve; one side of the valve plate 13, which is far away from the screw nut 11, is fixedly provided with a door spindle 14, the upper end and the lower end of the door spindle 14 are fixedly provided with guide sliding blocks 15, the upper surface and the lower surface of the inner cavity of the valve body 1 are fixedly provided with sliding rails 16, and the guide sliding blocks 15 are connected in the sliding rails 16 in a sliding manner.

When the valve plate 13 is used, the driving mechanism drives the driving shaft 3 to rotate, the screw rod 9 is driven to convert the rotation action into the linear action under the action of the transmission connection of the first bevel gear 6 and the second bevel gear 10, the screw rod nut 11 is driven to do the linear action on the surface of the screw rod 9 through the rotation of the screw rod 9, the hinge plate 12 is driven to rotate through the rotating shaft, and then the guide sliders 15 at the upper end and the lower end of the door shaft 14 are driven to run along the appointed track of the sliding rail 16, so that the inner door of the valve plate 13 can be tightly pressed with the door frame 7 through the driving force, the gap between the valve plate 13 and the door frame 7 is ensured to reach the optimal; when the valve plate 13 needs to be opened, the driving shaft 3 is controlled to rotate reversely, and the lead screw nut 11 can be driven to move reversely on the surface of the lead screw 9, so that the guide sliders 15 at the upper end and the lower end of the door shaft 14 are driven to move in a specified track in the slide rail 16, and the opening work of the valve plate 13 is realized. In addition, in this embodiment, the outer frame of the valve body 1 is made of stainless steel, the material of the outer frame can fully ensure that the outer frame can work smoothly in a severe environment, and the outer frame is formed by full welding through a laser machine after molding, so that the outer frame can effectively prevent internal airflow from leaking.

In addition, in this embodiment, the driving shaft 3 is connected to the valve body 1 through a bearing, so that it is ensured that the driving shaft 3 does not rotate in the bearing for ten thousand times, and the case of the driving shaft 3 and the valve body 1 is not worn to cause too large gap and cannot be adjusted, and the rotation torque of the driving shaft 3 is far smaller than the torque of the driving shaft 3 directly mounted on the case, so that the rotation torque of the valve plate 13 is reduced to a great extent, and the valve plate 13 is adjusted more flexibly, the torque of the cylinder allocated to the valve plate 13 is smaller, and the use cost is lighter. And the mechanism seat 2 adopts an integral bending strengthening process, so that the matched air cylinder is more stable and reliable in working, and the mechanism seat 2 is prevented from deforming to cause the valve to be incapable of working.

In the second embodiment, as a further scheme of the first embodiment, a sealing groove is arranged at an edge position of an outer surface of the valve plate 13, a sealing strip 17 is fixedly installed in the sealing groove, and the valve plate 13 is in sealing contact with the door frame 7 through the sealing strip 17. In this embodiment, the sealing strip 17 may adopt a dual-contact structure to ensure zero air leakage between the valve plate 13 and the door frame 7, and meanwhile, the sealing strip 17 is internally tested by adopting a differential pressure tube to ensure a completely sealed state.

In a third embodiment, as a further scheme of the first embodiment, the upper end and the lower end of the rear bracket 4 are fixedly connected with the upper surface and the lower surface of the inner cavity of the valve body 1 through fixing legs 18. The fixing feet 18 ensure that the rear bracket 4 can be stably fixed in the inner cavity of the valve body 1.

In a fourth embodiment, as a further scheme of the first embodiment, a shaft cover 19 is fixedly installed on the upper surface of the valve body 1, a sealing ring is fixedly installed inside the shaft cover 19, and the shaft cover 19 is hermetically connected with the driving shaft 3 through the sealing ring. The drive shaft 3 is securely locked by the sealing ring inside the shaft cover 19 to prevent the air flow from flowing out of the drive shaft 3.

In the fifth embodiment, as a further scheme of the first embodiment, two sets of the pressing block 8, the screw 9, the first bevel gear 6 and the second bevel gear 10 are provided. And two sets of lead screws 9 are transmitted synchronously through the driving shaft 3, so that the stability of the valve during opening and closing can be ensured.

In a sixth embodiment, as a further scheme of the first embodiment, the valve plate 13 is uniformly and fixedly provided with the reinforcing ribs 20 on the inner surface, and the reinforcing ribs 20 are vertically and fixedly connected with the hinge plate 12. The reinforcing ribs 20 improve the strength and stability of the valve plate 13.

In the seventh embodiment, as a further aspect of the first embodiment, a differential pressure pipe 21 is fixedly installed above the front side of the valve body 1.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an inside and outside zero leaks linear type biological valve which characterized in that: the automatic adjusting valve comprises a valve body (1), a mechanism seat (2) is fixedly mounted above the valve body (1), the mechanism seat (2) is movably connected with one end of a driving shaft (3), a rear support (4) is fixedly mounted in the middle of the rear side surface of the valve body (1), a gear seat (5) is fixedly mounted in the rear support (4), the other end of the driving shaft (3) sequentially penetrates through the upper surface of the valve body (1) and the gear seat (5) and is movably connected with the gear seat (5) through a bearing, and a first helical gear (6) is fixedly mounted on the outer surface of the driving shaft (3);

a door frame (7) is fixedly installed in the middle of the front side face of the valve body (1), a pressing block (8) is fixedly installed on the inner side face of the door frame (7), the pressing block (8) is movably connected with one end of a screw rod (9) through a bearing, the other end of the screw rod (9) penetrates through a gear seat (5) and is fixedly connected with a second helical gear (10), the first helical gear (6) is in transmission connection with the second helical gear (10), a screw rod nut (11) is movably connected to the surface of the screw rod (9) through threads, two ends of the screw rod nut (11) are rotatably connected with hinge plates (12) through rotating shafts, the hinge plates (12) are respectively and fixedly installed on two valve plates (13), and the valve plates (13) are in sealing contact with the door frame;

one side fixed mounting that screw-nut (11) was kept away from in valve board (13) has door-hinge (14), the equal fixed mounting in both ends has direction slider (15) about door-hinge (14), the equal fixed mounting in surface has slide rail (16) about valve body (1) inner chamber, direction slider (15) sliding connection is in slide rail (16).

2. The linear internal and external zero-leakage biological valve according to claim 1, wherein: the outer surface edge position of valve board (13) is provided with the seal groove, fixed mounting has sealing strip (17) in the seal groove, valve board (13) pass through sealing strip (17) and door frame (7) sealing contact.

3. The linear internal and external zero-leakage biological valve according to claim 1, wherein: the upper end and the lower end of the rear support (4) are fixedly connected with the upper surface and the lower surface of the inner cavity of the valve body (1) through fixing pins (18).

4. The linear internal and external zero-leakage biological valve according to claim 1, wherein: fixed surface installs axle cap (19) on valve body (1), the inside fixed mounting of axle cap (19) has the sealing washer, axle cap (19) pass through sealing washer and drive shaft (3) sealing connection.

5. The linear internal and external zero-leakage biological valve according to claim 1, wherein: the pressing block (8), the screw rod (9), the first bevel gear (6) and the second bevel gear (10) are provided with two groups.

6. The linear internal and external zero-leakage biological valve according to claim 1, wherein: reinforcing ribs (20) are uniformly and fixedly installed on the inner surface of the valve plate (13), and the reinforcing ribs (20) are vertically and fixedly connected with the hinge plate (12).

7. The linear internal and external zero-leakage biological valve according to claim 1, wherein: a differential pressure pipe (21) is fixedly arranged above the front side of the valve body (1).