CN219639395U

CN219639395U - Butterfly valve gear box waterproof construction

Info

Publication number: CN219639395U
Application number: CN202321308330.8U
Authority: CN
Inventors: 侯义
Original assignee: Fengcheng Hanyang Industrial Co ltd
Current assignee: Fengcheng Hanyang Industrial Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-09-05
Anticipated expiration: 2033-05-26

Abstract

The utility model is applicable to the technical field of gear box structures, and provides a waterproof structure of a butterfly valve gear box. This butterfly valve gear case waterproof construction, through setting up waterproof sleeve, the device is waterproof sleeve at the externally mounted of gear case body, this waterproof sleeve can shelter from the gear case surface, and waterproof sleeve's surface has seted up a plurality of air vents and can guarantee the normal emission of gear case internal pressure, still can remain certain space between waterproof sleeve and the gear case's the surface, external rainwater even get into waterproof telescopic inside through the air vent, also can be along waterproof sleeve's inner wall whereabouts and can not contact with the gear case surface, thereby prevent that the gear case is inside intaking, the life of gear case has been improved, thereby the practicality of the device has been improved.

Description

Butterfly valve gear box waterproof construction

Technical Field

The utility model belongs to the technical field of gear box structures, and particularly relates to a waterproof structure of a butterfly valve gear box.

Background

Gearboxes are widely used, for example in wind power plants, and are an important mechanical component in wind power plants. The main function is to transmit the power generated by the wind wheel under the action of wind power to the generator and to make the generator obtain corresponding rotating speed.

The gear box can play the effect of slowing down or accelerating, have certain application on some large-scale butterfly valves, the gear of its inside gear mutual drive can produce heat when the gear box is in operation, thereby make the inside temperature of gear box rise, lead to inside pressure increase, so generally can set up some through-holes at the surface of gear box and be used for keeping the inside pressure of gear box steady, and part butterfly valve sets up in open-air environment, when meetting rainy weather, the rainwater just can get into inside the gear box through the through-hole on the gear box, make the inside metal component of gear etc. of gear box rust, influence the life of gear box.

Disclosure of Invention

The utility model provides a waterproof structure of a butterfly valve gear box, and aims to solve the problems that when part of butterfly valves are arranged in the field environment and rainy weather is met, rainwater can possibly enter the gear box through a through hole in the gear box, so that metal components such as gears in the gear box rust, and the service life of the gear box is influenced.

The waterproof structure of the butterfly valve gear box comprises a gear box body, wherein the top end of the outer surface of the gear box body is transversely and fixedly connected with a fixed ring, the outer surface of the fixed ring is detachably provided with a connecting ring, the outer ring surface of the connecting ring is vertically and fixedly connected with a waterproof sleeve with the bottom end extending towards the lower end of the gear box body, the outer surface of the waterproof sleeve is transversely and transversely penetrated with a plurality of vent holes, and the outer edge of the bottom end of the waterproof sleeve is outwards expanded to form an umbrella-shaped skirt.

Preferably, the outer surface of the fixing ring is provided with external threads, the inner ring surface of the connecting ring is provided with internal threads which correspond to and are matched with the external threads, and the connecting ring is detachably mounted on the outer surface of the fixing ring through the internal threads.

Preferably, the bottom end of the fixing ring is fixedly connected with a lap ring, and the outer diameter of the lap ring is larger than the inner diameter of the connecting ring.

Preferably, the inner edge of the lower surface of the connecting ring is fixedly connected with a rubber sealing ring, and when the connecting ring is arranged on the outer surface of the fixing ring, the rubber sealing ring is tightly attached to the upper surface of the lap joint ring.

Preferably, the water retaining sheets are fixedly connected to the outer surface of the waterproof sleeve and positioned above each vent hole.

Preferably, the filter screen is fixedly connected to the inside of each of the plurality of ventilation holes.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: according to the waterproof structure of the butterfly valve gear box, the waterproof sleeve is arranged outside the gear box body, the waterproof sleeve can shield the outer surface of the gear box, the plurality of vent holes are formed in the outer surface of the waterproof sleeve, normal discharge of internal pressure of the gear box can be guaranteed, a certain space can be reserved between the waterproof sleeve and the outer surface of the gear box, external rainwater can fall downwards along the inner wall of the waterproof sleeve and cannot contact with the surface of the gear box even if entering the inner part of the waterproof sleeve through the vent holes, water is prevented from entering the gear box, the service life of the gear box is prolonged, and the practicability of the waterproof structure is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is an enlarged partial schematic view of the area A in FIG. 1;

fig. 3 is a schematic external view of the present utility model.

In the figure: 1. a fixing ring; 2. an external thread; 3. a connecting ring; 4. an internal thread; 5. a lap ring; 6. a rubber seal ring; 7. a waterproof sleeve; 8. a vent hole; 9. a filter screen sheet; 10. a water blocking piece; 11. a skirt edge; 12. a gear box body.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a butterfly valve gear box waterproof construction, includes gear box body 12, the top of gear box body 12 surface transversely fixedly connected with solid fixed ring 1, gu fixed ring 1's surface detachably installs go-between 3, the vertical fixedly connected with bottom of outer ring face of go-between 3 is waterproof sleeve 7 to gear box body 12 lower extreme extension, a plurality of air vents 8 have transversely been seted up to waterproof sleeve 7's surface, waterproof sleeve 7 bottom's outer fringe expands outward and forms umbrella-shaped shirt rim 11.

In this embodiment, the device is at the outside installation waterproof sleeve 7 of gear box body 12, this waterproof sleeve 7 can shelter from the gear box surface, and the normal emission of gear box internal pressure can be guaranteed to a plurality of air vents 8 have been seted up to waterproof sleeve 7's surface, still can remain certain space between waterproof sleeve 7 and the gear box's the surface, external rainwater even get into waterproof sleeve 7's inside through air vents 8, also can be along waterproof sleeve 7's inner wall whereabouts and can not contact with the gear box surface, thereby prevent that the inside of gear box from intaking, the life of gear box has been improved, thereby the practicality of the device has been improved.

Further, the outer surface of the fixing ring 1 is provided with an external thread 2, the inner ring surface of the connecting ring 3 is provided with an internal thread 4 which corresponds to and is matched with the external thread 2, and the connecting ring 3 is detachably arranged on the outer surface of the fixing ring 1 through the internal thread 4.

In this embodiment, the connecting ring 3 is fixedly connected with the waterproof sleeve 7, and the connecting ring and the waterproof sleeve are detachably mounted on the outer surface of the gear box body 12 in a threaded connection manner, so that the connecting ring and the waterproof sleeve are simple and convenient to mount and dismount.

Further, the bottom end of the fixed ring 1 is fixedly connected with a lap ring 5, and the outer diameter of the lap ring 5 is larger than the inner diameter of the connecting ring 3.

In the present embodiment, the lap ring 5 performs the limit function to limit the lowest position to which the connecting ring 3 can move.

Further, the inner edge of the lower surface of the connecting ring 3 is fixedly connected with a rubber sealing ring 6, and when the connecting ring 3 is arranged on the outer surface of the fixed ring 1, the rubber sealing ring 6 is tightly attached to the upper surface of the lap joint ring 5.

In this embodiment, the rubber seal 6 plays a sealing role, preventing rainwater from entering the waterproof sleeve 7 through the gap between the fixing rings 1 of the connecting ring 3 to affect the gear case body 12.

Further, a water blocking plate 10 is fixedly connected to the outer surface of the waterproof sleeve 7 and above each vent hole 8.

The filter screen 9 is fixedly connected to the inside of each of the plurality of ventilation holes 8.

In the present embodiment, the shape of the outer edge of the bottom end of the plurality of water blocking pieces 10 is the same as the shape of the skirt 11 of the bottom end of the waterproof sleeve 7, so that rainwater can flow outward when falling down, and rainwater is prevented from entering the inside of the waterproof sleeve 7.

The filter screen 9 can filter dust in the air and also can play a certain role in keeping off rain.

The working principle and the using flow of the utility model are as follows: after the waterproof device is installed, the waterproof sleeve 7 is installed outside the gear box body 12, the waterproof sleeve 7 can shield the outer surface of the gear box, the vent holes 8 are formed in the outer surface of the waterproof sleeve 7, normal discharge of internal pressure of the gear box can be guaranteed, a certain space can be reserved between the waterproof sleeve 7 and the outer surface of the gear box, external rainwater can slide downwards along the inner wall of the waterproof sleeve 7 and cannot contact with the surface of the gear box even if entering the inside of the waterproof sleeve 7 through the vent holes 8, water is prevented from entering the gear box, the service life of the gear box is prolonged, and the practicability of the waterproof device is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A butterfly valve gear box waterproof construction, its characterized in that: including gear box body (12), the top of gear box body (12) surface transversely fixedly connected with solid fixed ring (1), gu fixed ring (1)'s surface detachably installs go-between (3), go-between (3) outer ring face vertical fixedly connected with bottom to waterproof sleeve (7) that gear box body (12) lower extreme extends, a plurality of air vents (8) have transversely been seted up to the surface of waterproof sleeve (7), the outer fringe of waterproof sleeve (7) bottom expands outward and forms umbrella-shaped shirt rim (11).

2. The butterfly valve gear case waterproof structure of claim 1, wherein: the outer surface of the fixed ring (1) is provided with an external thread (2), the inner ring surface of the connecting ring (3) is provided with an internal thread (4) which corresponds to the external thread (2) and is matched with the external thread, and the connecting ring (3) is detachably arranged on the outer surface of the fixed ring (1) through the internal thread (4).

3. The butterfly valve gear case waterproof structure of claim 1, wherein: the bottom fixedly connected with overlap joint ring (5) of solid fixed ring (1), the external diameter size of overlap joint ring (5) is greater than the internal diameter size of go-between (3).

4. A butterfly valve gear case waterproof structure according to claim 3, wherein: the inner edge of the lower surface of the connecting ring (3) is fixedly connected with a rubber sealing ring (6), and when the connecting ring (3) is installed on the outer surface of the fixed ring (1), the rubber sealing ring (6) is tightly attached to the upper surface of the lap joint ring (5).

5. The butterfly valve gear case waterproof structure of claim 1, wherein: the waterproof sleeve (7) is fixedly connected with water retaining sheets (10) on the outer surface of the waterproof sleeve and above each vent hole (8).

6. The butterfly valve gear case waterproof structure of claim 1, wherein: the inside of the plurality of vent holes (8) is fixedly connected with a filter screen (9).