Sealed flue quick-opening gate

Abstract

The utility model discloses a sealing type flue quick-opening gate which comprises a gate seat and a support erected at the upper end of the gate seat, a valve inlet is formed in the upper end of the gate seat, gates are formed in the front end and the rear end of the gate seat, a plurality of limiting pieces are arranged at the bottoms of the gates in a protruding mode, and a plurality of pulley blocks are transversely arranged at the upper end of the support. One end of the transmission shaft is coaxially connected with a motor, the transmission shaft is wound with a lifting hook assembly, the lower end of the lifting hook assembly is connected with a balancing weight, the upper end of the balancing weight is connected with a plurality of steel wire ropes, the middles of the steel wire ropes are erected on the pulley blocks, and the other ends of the steel wire ropes are connected with a valve plate; buffer blocks corresponding to the limiting pieces are arranged on the two sides of the lower end of the valve plate, a supporting rod used for containing a balancing weight is further arranged in the middle of the support, sealing strips are arranged on the two sides of the gate, and the sealing strips are of elastic corrugated structures, so that the service life of the valve is prolonged, and meanwhile the better sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to a sealed flue quick-opening gate. Background Art

[0002] In industrial production, effective control of the flue system is crucial to the stable operation of the production process and environmental protection. Traditional flue gates often have some problems during use.

[0003] On the one hand, the sealing performance of traditional flue gates is poor. In the flue system, it is necessary to ensure that the gate can effectively prevent the leakage of flue gas and other media when it is closed to avoid pollution to the environment and affect the normal operation of production equipment. However, some existing gates are prone to leakage at the gate due to unreasonable sealing structure design, and cannot meet strict sealing requirements. In addition, the valve plate is too heavy and the descent speed is fast during the falling process, which is easy to cause impact and damage to the valve plate, reducing its service life. Therefore, the existing technology has technical defects and needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a sealed flue quick-opening gate which has a longer service life, a stronger sealing and is more convenient to operate.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a sealed flue quick-opening gate, comprising a gate seat and a bracket mounted on the upper end of the gate seat, a valve inlet is formed on the upper end of the gate seat, gates are formed on both the front and rear ends of the gate seat, a plurality of limit members are protruding from the bottom of the gate, a plurality of pulley blocks are transversely arranged on the upper end of the bracket, a transmission shaft is also arranged in the middle of the plurality of pulley blocks, one end of the transmission shaft is coaxially connected to a motor, a hook assembly is surrounded on the transmission shaft, counterweight blocks are connected to the lower ends of the hook assembly, a plurality of steel wire ropes are connected to the upper end of the counterweight block, the middle part of the steel wire rope is mounted on the pulley block, the other end of the steel wire rope is connected to a valve plate, buffer blocks are arranged on both sides of the lower end of the valve plate corresponding to the limit members, a support rod for placing the counterweight block is also arranged in the middle of the bracket, sealing strips are arranged on both sides of the gate, and the sealing strips are of an elastic corrugated structure. Preferably, the limiting member is a plurality of rectangular block structures protrudingly arranged on the upper end of the gate bottom plate, and an inclined surface is arranged on the inner side of the limiting member. The limiting member is used to limit the falling position of the valve plate.

[0006] Preferably, slideways are provided in the middle of both sides of the bracket and are continuously arranged from top to bottom, the counterweight blocks are placed in the slideways of the brackets on both sides, and the support rods are placed in the middle of the slideways.

[0007] Preferably, the bracket is arranged on one side of the upper end of the valve inlet, and one end of the pulley block on the upper end of the bracket is correspondingly arranged directly above the valve inlet.

[0008] The beneficial effects of the present utility model are as follows: By coaxially connecting and arranging a motor on one side of the transmission shaft, the present utility model can better control the rising and falling speeds of the counterweight and the valve plate. Moreover, a limiting member for limiting the valve plate is provided at the upper end of the gate bottom plate. During the descending process of the valve plate, the buffer blocks on both sides of the lower end of the valve plate contact the limiting member, and the inner side of the limiting member is provided with an inclined surface, effectively buffering the descending speed of the valve plate, preventing serious collisions, and prolonging the service life. In addition, the sealing strips provided on both sides of the gate are both of an elastic corrugated structure. The corrugated sealing strips can better adapt to different sealing surface shapes when the valve plate is closed, closely fit with parts such as the gate seat, effectively reducing the possibility of leakage. At the same time, even if the valve plate is offset or tilted during use, the elastic corrugated sealing strips have better elastic recovery ability. Even if the valve plate is tilted and the sealing strips return to their original state, they can still maintain good sealing performance, and can also have a better buffering effect on the valve plate during its descending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0010] Figure 2 is a cross-sectional view of the present utility model;

[0011] Figure 3 is Figure 1 a partial structural schematic diagram of A in

[0012] Description of the Labels in the Drawings

[0013] 1. Gate seat; 101. Gate opening; 102. Sealing strip; 103. Inlet valve opening; 104. Limiting member; 2. Bracket; 201. Support rod; 3. Pulley block; 4. Transmission shaft; 401. Motor; 402. Hook assembly; 5. Counterweight; 6. Steel wire rope; 7. Valve plate; 701. Buffer block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] Combined with Figures 1-3The utility model is a sealed flue quick-opening gate, comprising a gate seat 1 and a bracket 2 mounted on the upper end of the gate seat 1, wherein the gate seat 1 has a valve inlet 103 on the upper end, gates 101 are provided at both the front and rear ends of the gate seat 1, and a plurality of stoppers 104 are protrudingly provided at the bottom of the gate 101, a plurality of pulley blocks 3 are transversely provided at the upper end of the bracket 2, a transmission shaft 4 is further provided in the middle of the plurality of pulley blocks 3, one end of the transmission shaft 4 is coaxially connected to a motor 401, and a hook assembly 40 is surrounded on the transmission shaft 4 2, the lower ends of the hook assembly 402 are connected to counterweight blocks 5, the upper ends of the counterweight blocks 5 are connected to multiple steel wire ropes 6, the middle parts of the steel wire ropes 6 are laid on the pulley block 3, the other ends of the steel wire ropes 6 are connected to the valve plate 7, and buffer blocks 701 are provided on both sides of the lower end of the valve plate 7 corresponding to the limit members 104, and a support rod 201 for placing the counterweight block 5 is also provided in the middle of the bracket 2, and sealing strips 102 are provided on both sides of the gate 101, and the sealing strips 102 are elastic corrugated structures.

[0016] Furthermore, the limiting member 104 is a plurality of rectangular block structures protruding from the upper end of the bottom plate of the gate 101 , and the inner side of the limiting member 104 is provided with an inclined surface, and the limiting member 104 is used to limit the falling position of the valve plate 7 .

[0017] Furthermore, slideways are continuously arranged from top to bottom in the middle of both sides of the bracket 2, the counterweight block 5 is placed in the slideways of the brackets 2 on both sides, and the support rod 201 is placed in the middle of the slideways.

[0018] Furthermore, the bracket 2 is arranged on one side of the upper end of the valve inlet 103 , and one end of the pulley block 3 on the upper end of the bracket 2 is correspondingly arranged directly above the valve inlet 103 .

[0019] The utility model can better control the rising and falling speeds of the counterweight block 5 and the valve plate 7 by coaxially connecting and arranging a motor 401 on one side of the transmission shaft 4, and a limiter 104 for limiting the valve plate 7 is arranged on the upper end of the bottom plate of the gate 101. During the descending process of the valve plate 7, the buffer blocks 701 on both sides of the lower end of the valve plate 7 contact the limiter 104, and the inner side of the limiter 104 is arranged with an inclined surface, which effectively buffers the descending speed of the valve plate 7, prevents serious collision, and prolongs the service life. In addition, the sealing strips 102 arranged on both sides of the gate 101 are elastic corrugated structures. When the valve plate 7 is closed, the corrugated sealing strip 102 can better adapt to different sealing surface shapes, fit tightly with the gate seat 1 and other parts, and effectively reduce the possibility of leakage. At the same time, when the valve plate 7 is offset or tilted during use, the elastic corrugated sealing strip 102 has better elastic recovery ability. Even if the valve plate 7 is tilted, the sealing strip 102 returns to its original state, and can still maintain good sealing performance. At the same time, it can also have a better buffering effect on the valve plate 7 during its descent.

[0020] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sealed flue quick-opening gate, comprising a gate seat (1) and a bracket (2) mounted on the upper end of the gate seat (1), characterized in that: The gate seat (1) has a valve inlet (103) at the upper end, and gates (101) are provided at both the front and rear ends of the gate seat (1). A plurality of stoppers (104) are protrudingly provided at the bottom of the gates (101). A plurality of pulley blocks (3) are transversely provided at the upper end of the bracket (2). A transmission shaft (4) is also provided in the middle of the plurality of pulley blocks (3). One end of the transmission shaft (4) is coaxially connected to a motor (401). A hook assembly (402) surrounds the transmission shaft (4). The lower ends of the hook assembly (402) are connected to counterweight blocks. (5), the upper end of the counterweight block (5) is connected to a plurality of steel wire ropes (6), the middle portion of the steel wire ropes (6) is mounted on the pulley block (3), the other end of the steel wire ropes (6) is connected to a valve plate (7), and buffer blocks (701) are arranged on both sides of the lower end of the valve plate (7) corresponding to the limit members (104), the middle portion of the bracket (2) is also provided with a support rod (201) for placing the counterweight block (5), and sealing strips (102) are arranged on both sides of the gate (101), and the sealing strips (102) are elastic corrugated structures.

2. A sealed flue quick-opening gate according to claim 1, characterized in that: The limiting member (104) is a plurality of rectangular block structures protruding from the upper end of the bottom plate of the gate (101), and the inner side of the limiting member (104) is provided with an inclined surface. The limiting member (104) is used to limit the falling position of the valve plate (7).

3. A sealed flue quick-opening gate according to claim 1, characterized in that: The middle parts of both sides of the bracket (2) are provided with slideways which are continuously arranged from top to bottom, the counterweight blocks (5) are placed in the slideways of the brackets (2) on both sides, and the support rod (201) is placed in the middle part of the slideways.

4. A sealed flue quick-opening gate according to claim 1, characterized in that: The bracket (2) is arranged on one side of the upper end of the valve inlet (103), and one end of the pulley block (3) at the upper end of the bracket (2) is correspondingly arranged directly above the valve inlet (103).

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