Sewage discharge gate valve capable of better guaranteeing sealing effect

Abstract

The utility model discloses a blow-down gate valve capable of better ensuring the sealing effect, which comprises a valve body, a valve cover, a valve rod, a hand wheel and a sealing gate plate, wherein a channel is arranged in the valve body; the inner wall of the channel of the valve body is provided with a sealing plate groove corresponding to the sealing gate plate, the valve body is provided with a pollution discharge hole, the pollution discharge hole is correspondingly communicated with the sealing plate groove, and the pollution discharge hole is provided with a pollution discharge cap. According to the utility model, the designed pollution discharge hole is arranged corresponding to the sealing flashboard, so that the pollution discharge effect is realized during pollution discharge, and sediment deposition sundries can be well discharged from the corresponding position of the sealing flashboard, so that the sediment deposition sundries cannot be remained at the position where the sealing flashboard correspondingly abuts against the valve body; therefore, the problems that the sealing plate structure loses efficacy and normal sealing cannot be achieved due to sediment deposition sundries in the pipeline using process are solved, and the sealing effect of the sealing flashboard in the using process is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve technical field, concretely relates to a sewage sluice valve that can guarantee sealing effect better. BACKGROUND

[0002] The gate valve is a device commonly used for opening and closing control in a pipeline, and the lifting of the sealing gate in the valve body is completed by the cooperation of the hand wheel and the valve rod during the opening and closing control. Since the pipeline will generate silt and sundries in the long-term use process, a sewage structure is arranged. Although the sewage design on the existing gate valve can achieve the purpose of sewage, silt and sundries still exist in the corresponding abutting position when the sealing gate abuts against the valve body, thereby affecting the sealing property between the sealing gate and the valve body. Therefore, the existing structure needs to be further improved. SUMMARY

[0003] The utility model discloses a sewage gate valve that can guarantee sealing effect better.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a sewage gate valve that can guarantee sealing effect better, comprising a valve body, a valve cover, a valve rod, a hand wheel and a sealing gate, a channel is arranged in the valve body; a sealing plate groove corresponding to the sealing gate is arranged on the inner wall of the channel of the valve body; a sewage hole is arranged on the valve body, and the sewage hole is communicated with the sealing plate groove; and a sewage cap is arranged at the sewage hole.

[0005] In the sewage gate valve that can guarantee sealing effect better, a sealing abutting step is formed between the sewage hole and the sealing plate groove.

[0006] In the sewage gate valve that can guarantee sealing effect better, a valve rod stroke hole is arranged in the sealing gate, and the sewage hole corresponds to the valve rod stroke hole.

[0007] In the sewage gate valve that can guarantee sealing effect better, the sewage hole and the valve rod are arranged on the same central axis.

[0008] In the sewage gate valve that can guarantee sealing effect better, the channel in the valve body comprises a front connecting hole part, a middle through hole part and a rear connecting hole part, and the sewage hole is arranged at a position corresponding to the middle through hole part.

[0009] In the sewage gate valve that can guarantee sealing effect better, a sealing ring is arranged between the sewage cap and the valve body.

[0010] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0011] The sewage discharge hole and the sealing gate plate are correspondingly arranged, sewage discharge effect is realized, and the silt and sundries are discharged from the position corresponding to the sealing gate plate, so that the position where the sealing gate plate and the valve body abut does not store silt and sundries, the problems of sealing plate structure failure and normal sealing failure caused by silt and sundries in the pipeline use process are solved, and the sealing effect of the sealing gate plate in use is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a sectional view of the utility model;

[0013] Figure 2 is Figure 1 the enlarged view of A part of DETAILED DESCRIPTION

[0014] The utility model is further described in connection with the drawings.

[0015] Please refer to Figure 1 、 Figure 2 The utility model provides a sewage gate valve can better guarantee sealing effect, including valve body 1, valve cover 2, valve stem 3, hand wheel 4, sealing gate plate 5, be provided with passageway 6 in valve body 1;The passageway 6 inner wall of valve body 1 is provided with the sealing plate groove 7 corresponding with sealing gate plate 5, is provided with sewage discharge hole 8 on valve body 1, and sewage discharge hole 8 is communicated with the sealing plate groove 7 correspondingly, is provided with sewage discharge cap 9 at sewage discharge hole 8.

[0016] Further, the valve stem stroke hole 11 is arranged in the sealing gate plate 5, the sewage discharge hole 8 corresponds with the valve stem stroke hole 11, and the sewage discharge hole 8 is arranged on the concentric axis with the valve stem 3.

[0017] Further, the sealing abutting step 10 is formed between the sewage discharge hole 8 and the sealing plate groove 7.

[0018] Further, the passageway in valve body 1 includes front connecting hole part 12, middle through hole part 13 and rear connecting hole part 14, and the sewage discharge hole 8 is arranged at the position corresponding to the middle through hole part 13.

[0019] Further, in order to guarantee the sealing property in use, the sealing ring 15 is arranged between the sewage discharge cap 9 and valve body 1.

[0020] In the use of the blowdown, the blowdown cap 9 is screwed off for blowdown. Since the blowdown hole 8 is arranged in correspondence with the sealing gate plate 5, not only the blowdown effect is achieved, but also the silt and sediment are well discharged from the position corresponding to the sealing gate plate 5, so that the silt and sediment are not left in the position where the sealing gate plate abuts against the valve body, thus the sealing effect of the sealing gate plate 5 abutting against the sealing abutting step 10 is better when closed, thereby solving the problem of the sealing plate structure failure and the normal sealing failure caused by the silt and sediment in the pipeline use process.

[0021] The blowdown gate valve capable of better ensuring the sealing effect is described in detail above, and the principle and implementation mode of the present application are described by applying specific examples in the present article, and the above embodiment description is only used for helping to understand the technical scheme disclosed by the present application; meanwhile, according to the idea of the present application, the specific implementation mode and application range will be changed by the person skilled in the art, and the above description should not be understood as the limitation of the present application.

Claims

1. A sewage sluice valve capable of better guaranteeing sealing effect, comprising a valve body (1), a valve cover (2), a valve rod (3), a hand wheel (4) and a sealing sluice plate (5), a channel (6) being arranged in the valve body (1); characterized in that: The inner wall of the passage (6) of the valve body (1) is provided with a sealing plate groove (7) corresponding to the sealing gate (5), the valve body (1) is provided with a blowdown hole (8), the blowdown hole (8) is communicated with the sealing plate groove (7) in correspondence, and the blowdown hole (8) is provided with a blowdown cap (9).

2. The blowdown gate valve with better sealing effect according to claim 1, characterized in that: A sealing abutting step (10) is formed between the blowdown hole (8) and the sealing plate groove (7).

3. The sewage sluice valve with better sealing effect of claim 1, wherein: The sealing gate (5) is provided with a valve rod stroke hole (11), and the blowdown hole (8) corresponds to the valve rod stroke hole (11).

4. The blowdown gate valve with better sealing effect according to any one of claims 1 to 3, characterized in that: The blowdown hole (8) is arranged on the same central axis as the valve rod (3).

5. The sewage sluice valve of claim 3, wherein: The inner passage of the valve body (1) comprises a front connecting hole part (12), a middle through hole part (13) and a rear connecting hole part (14), and the blowdown hole (8) is arranged at a position corresponding to the middle through hole part (13).

6. The sluice gate valve with better sealing effect of claim 1, wherein: A sealing ring (15) is arranged between the blowdown cap (9) and the valve body (1).

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