CN213711929U

CN213711929U - Gate sealing structure

Info

Publication number: CN213711929U
Application number: CN202022523580.6U
Authority: CN
Inventors: 向登彪; 龚学林; 何相奎
Original assignee: Hubei Yidu Yiyun Mec&elec Engineering Co ltd
Current assignee: Hubei Yidu Yiyun Mec&elec Engineering Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-07-16
Anticipated expiration: 2030-11-04

Abstract

The utility model relates to a gate sealing structure, which comprises a gate body, a sliding plate, a driving device and a packing box; the gate body is provided with a communicating hole penetrating through the gate body; the sliding plate is connected with the gate body in a sliding mode, and one end of the sliding plate extends into the communication hole; the driving device is arranged on the gate body and drives the sliding plate to move along the direction vertical to the axial direction of the communication hole; the stuffing box is sleeved on the sliding plate, and one end of the stuffing box is fixedly arranged on the gate body; the packing box is filled with sealing packing, the other end of the packing box is provided with a pressure plate, the pressure plate is slidably sleeved on the sliding plate, and the pressure plate compresses the sealing packing; after wearing and tearing appear when the packings, the utility model discloses the accessible adjusting plate adjusts the packing force of packings and sliding plate, guarantees sealed effect.

Description

Gate sealing structure

Technical Field

The utility model relates to a technical field of gate especially relates to a gate seal structure.

Background

In the bulk material conveying industry, gate valves are widely applied, and are usually arranged at the inlet and outlet of a screw conveyor, the inlet and outlet of a bucket elevator, the inlet and outlet of a scraper conveyor and the inlet and outlet of a storage bin. The purpose is generally to: the flow of feeding and discharging is controlled, and abnormal conditions such as material blockage, foreign matter clamping stagnation, insufficient conveying capacity and the like are prevented; or when the gate rear-end equipment breaks down, the gate can be closed in time, the front section is disconnected to feed, and the maintenance is convenient.

In order to ensure the sealing and isolation of the working chamber and the non-working chamber, an upper rubber sheet and a lower rubber sheet are usually arranged at the joint of the working chamber and the non-working chamber and are respectively contacted with the upper surface and the lower surface of the sliding plate, the upper rubber sheet and the lower rubber sheet clean materials attached to the sliding plate along with the opening and closing of the gate, but the gap between the rubber sheets and the sliding plate cannot be adjusted after the rubber sheets are worn, so that the pressing force between the worn rubber sheets and the sliding plate is insufficient, the materials can be brought into the non-working chamber or the open environment from the working chamber, the rotating part of the non-working chamber fails due to the clamping stagnation of the materials, and certain toxic materials and high-temperature materials are directly exposed in the open environment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a gate seal structure, can adjust the packing force between sealing member and the sliding plate, guarantee sealed effect.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a gate sealing structure comprises a gate body, a sliding plate, a driving device and a stuffing box; the gate body is provided with a communicating hole penetrating through the gate body; the sliding plate is connected with the gate body in a sliding mode, and one end of the sliding plate extends into the communication hole; the driving device is arranged on the gate body and drives the sliding plate to move along the direction vertical to the axial direction of the communication hole; the stuffing box is sleeved on the sliding plate, and one end of the stuffing box is fixedly arranged on the gate body; the packing box is filled with sealing packing, the other end of the packing box is provided with a pressing plate, the pressing plate is slidably sleeved on the sliding plate, and the pressing plate presses the sealing packing tightly.

The utility model has the advantages that: when the sealing filler is worn, the pressing force between the sealing filler and the sliding plate can be adjusted by adjusting the pressing plate, so that the sealing effect is ensured.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, two sides of the pressing plate are respectively provided with a wing plate, and the outer side walls of two sides of the stuffing box are respectively provided with a mounting plate; the wing plates correspond to the mounting plates one by one, and the wing plates are connected with the corresponding mounting plates through compression bolts respectively.

A non-working cavity is further arranged on the gate body and is positioned on one side of the communication hole; the other end of the slide plate extends into the non-working chamber and the stuffing box is mounted in the non-working chamber.

Further, the driving device comprises a nut, a screw rod and a hand wheel; the nut is positioned in the non-working cavity and is fixedly arranged on one side surface of the sliding plate through a nut box; the screw rod is in threaded connection with the nut, and one end of the screw rod is rotatably connected to one inner side wall of the non-working cavity; the other end of the screw rod extends out of the other side wall opposite to the non-working cavity, and the hand wheel is coaxially installed.

Furthermore, a hand hole is formed in the inner wall of the non-working cavity.

Further, the gate body is rotatably provided with at least one pair of pulleys, and the pulleys are matched with the sliding plate in a rolling manner.

Further, one end of the communicating hole is provided with a conical hopper; the end with smaller cross section of the cone bucket faces inwards and is tightly attached to the sliding plate.

Drawings

Fig. 1 is a schematic structural view of a gate sealing structure of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural view of a pressing plate of a gate sealing structure of the present invention;

fig. 4 is a schematic view of the connection between the pressing plate and the stuffing box of the gate sealing structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the gate comprises a gate body, 11, a communication hole, 12, a non-working cavity, 13, a hand hole, 2, a cone bucket, 3, a sliding plate, 4, a roller, 51, a nut, 52, a screw rod, 53, a hand wheel, 6, a stuffing box, 61, a mounting plate, 7, sealing stuffing, 8, a pressing plate, 81, a wing plate, 9 and a compression bolt.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, a gate sealing structure includes a gate body 1, a sliding plate 3, a driving device, and a stuffing box 6. The gate body 1 is provided with a communicating hole 11 and a non-working chamber 12, and the non-working chamber 12 is positioned at one side of the communicating hole 11. The cone bucket 2 is installed at one end of the communicating hole 11, and the end with the smaller cross section of the cone bucket 2 faces inwards. The sliding plate 3 is slidably mounted on the gate body, with one end extending into the communication hole 11 and the other end extending into the non-working chamber 12. The sliding plate 3 is tightly attached to one end face with smaller cross section of the conical hopper 2, and when the sliding plate 3 slides towards the communication hole 11, the conical hopper 2 is blocked, namely the gate is closed; when the sliding plate 3 slides towards the non-working chamber 12, the valve is opened, and the material can pass through the end with the smaller cross section of the conical hopper 2. The gate body 1 is further rotatably provided with at least one pair of rollers 4, in this embodiment, the gate body 1 is provided with four pairs of rollers 4, two pairs of rollers 4 are arranged in the communicating hole 1, and the other two pairs of rollers 4 are arranged in the non-working cavity 12. The rollers 4 are all in rolling fit with the sliding plate 3, and the rollers 4 play a role of supporting the sliding plate 3 in the sliding process of the sliding plate 3.

The drive means comprises a nut 51, a screw 52 and a hand wheel 53. The nut 51 and the lead screw 52 are both arranged in the non-working chamber 12, and the nut 51 is fixedly arranged on one side surface of the sliding seat 3 through a nut box. The screw 52 is screw-coupled with the sliding seat 53, and one end of the screw 52 is rotatably coupled to one inner sidewall of the non-working chamber 12, and the other end is coaxially fixedly coupled with the hand wheel 53 and extends from the other sidewall opposite to the non-working chamber 12. By rotating the hand wheel 53, the position of the slide plate 3 can be adjusted, and the opening and closing of the gate can be adjusted.

In order to prevent the material from being brought into the non-working chamber 12 through the communication hole 11, a sealing means is installed at the junction of the sliding plate 3 and the gate body 1. In this embodiment, the sealing means is a stuffing box 6. As shown in fig. 2, the stuffing box 6 is installed in the non-working chamber 12, and one end of the stuffing box 6 is fixed to the inner side wall of the non-working chamber 12. The packing box 6 is sleeved on the sliding plate 3, the packing box 6 is filled with the sealing packing 7, and the sealing packing 7 is wrapped on the sliding plate 3. The other end of the stuffing box 6 is provided with a pressure plate 8, the pressure plate 8 is slidably sleeved on the sliding plate 3, and the pressure plate 8 compresses the sealing stuffing 7. As shown in fig. 3 and 4, the pressing plate 8 is provided with one wing plate 81 on each side, and the stuffing box is provided with one mounting plate 61 on each side. The vanes 81 correspond to the mounting plates 61 one by one, and the vanes 81 are each connected to the corresponding mounting plate 61 by a hold-down bolt 9. The pressing plate 8 is adjusted through the pressing bolt 9, the pressing force of the sealing filler 7 and the sliding plate 3 is adjusted, and the sealing effect is guaranteed. After the gate is used for a period of time, because the sliding plate 3 and the sealing filler 7 are abraded, the gap between the sliding plate 3 and the sealing filler 7 is enlarged, the sealing is disabled, at this time, the pressing bolt 9 can be adjusted again, the pressing force between the pressing plate 8 and the sealing filler 7 is increased, the gap between the sliding plate 3 and the sealing filler 7 generated due to abrasion is made up, and the sealing effect is achieved again.

In order to facilitate the adjustment of the pressing bolt 9, as shown in fig. 1, two opposite side surfaces of the non-working chamber 12 are respectively provided with a hand hole 13. And the sealing packing 7 of this embodiment adopts packing, can select various packing types such as high temperature resistant, corrosion-resistant, high lubrication according to the material characteristic, also can adopt multilayer packing to seal, improves sealed reliability.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A gate sealing structure is characterized by comprising a gate body, a sliding plate, a driving device and a stuffing box; the gate body is provided with a communicating hole penetrating through the gate body; the sliding plate is connected with the gate body in a sliding mode, and one end of the sliding plate extends into the communication hole; the driving device is arranged on the gate body and drives the sliding plate to move along the direction vertical to the axial direction of the communication hole; the stuffing box is sleeved on the sliding plate, and one end of the stuffing box is fixedly arranged on the gate body; the packing box is filled with sealing packing, the other end of the packing box is provided with a pressing plate, the pressing plate is slidably sleeved on the sliding plate, and the pressing plate presses the sealing packing tightly.

2. The gate sealing structure according to claim 1, wherein a wing plate is provided on each of both sides of the pressing plate, and a mounting plate is provided on each of outer side walls on both sides of the stuffing box; the wing plates correspond to the mounting plates one by one, and the wing plates are connected with the corresponding mounting plates through compression bolts respectively.

3. The gate sealing structure according to claim 1, wherein a non-working chamber is provided on the gate body, the non-working chamber being located on one side of the communication hole; the other end of the slide plate extends into the non-working chamber and the stuffing box is mounted in the non-working chamber.

4. A gate seal structure according to claim 3, wherein said driving means comprises a nut, a screw and a hand wheel; the nut is positioned in the non-working cavity and is fixedly arranged on one side surface of the sliding plate through a nut box; the screw rod is in threaded connection with the nut, and one end of the screw rod is rotatably connected to one inner side wall of the non-working cavity; the other end of the screw rod extends out of the other side wall opposite to the non-working cavity, and the hand wheel is coaxially installed.

5. The gate sealing structure according to claim 3, wherein a hand hole is formed on an inner wall of the non-working chamber.

6. The gate sealing structure according to claim 1, wherein at least one pair of pulleys are rotatably mounted on the gate body, and each of the pulleys is in rolling engagement with the sliding plate.

7. The gate sealing structure according to claim 1, wherein a tapered funnel is installed at one end of the communication hole; the end with smaller cross section of the cone bucket faces inwards and is tightly attached to the sliding plate.