Counter weight type double-layer flap valve with small size and high sealing performance

Abstract

The utility model relates to the technical field of discharging devices, in particular to a small-size high-sealing-performance heavy hammer type double-layer flap valve which comprises a valve body which is designed to be of an integrated structure. The sealing assembly sleeves the bottoms of the outer walls of the two hoppers and is fixedly connected with the hoppers; the rotating shaft assembly comprises two rotating shafts which penetrate through the two rotating shaft mounting areas respectively and are rotatably connected with the rotating shaft mounting areas, two rockers which are fixedly connected with the areas, located in the inner cavity of the valve body, of the two rotating shafts respectively, and two sealing plates which are fixedly connected with the ends, not connected with the rotating shafts, of the two rockers respectively; the driving assembly is arranged on the periphery of the valve body and fixedly connected with the rotating shaft assembly. The valve body is designed to be of an integrated structure, the two driving mechanisms are arranged on the two opposite side faces respectively, the height of the valve body of the structure can be reduced to 510 mm, the valve body can be suitable for a low ash discharging opening, and ash discharging limitation is avoided. The bottom of the outer wall of the hopper is coated with a polyurethane ring fixed by an iron sheet ring, so that the sealing performance of the sealing plate and the bottom of the hopper can be further ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to unloading device technical field especially relates to a small volume high sealing property heavy hammer formula double -deck flap valve. BACKGROUND

[0002] Double -deck ash unloading valve usually is composed by two valve bodies through connection, when working, upper valve plate opens, lower valve plate closes, and material falls into the lower equipment through the valve plate. When the lower valve plate opens, the upper valve plate closes, so as to realize the smooth unloading of material and the closure of gas.

[0003] But the existing double -deck ash unloading valve is composed of two valve bodies, and the drive mechanism of the upper and lower valve bodies is located at the same side, so the original equipment height is about 900mm, which is generally used for the emergency ash discharge port of desulfurization tower, but sometimes the height position of the emergency ash discharge port is limited. In addition, the material of the hopper of the existing double -deck ash unloading valve is worn out under the repeated friction of the discharge for a long time, and the wild wind will flow from the bottom to the inside of the desulfurization tower, affecting the discharge. SUMMARY

[0004] The utility model discloses a small volume high sealing property heavy hammer formula double -deck flap valve to solve the technical problems in the prior art.

[0005] Valve body, the valve body is integrated structure design, the valve body includes upper half unloading valve area and lower half unloading valve area, the first hopper and the second hopper are respectively arranged in the inner cavity of the upper half unloading valve area and the lower half unloading valve area, and the upper half unloading valve area and the lower half unloading valve area are respectively outwardly protruded to form upper half pivot mounting area and lower half pivot mounting area on the side away from each other.

[0006] Sealing assembly, which is sleeved on the outer wall of the hopper and fixedly connected with the hopper.

[0007] The pivot assembly includes two pivots, two rocker arms and two sealing plates.

[0008] The drive assembly is arranged on the periphery of the valve body and fixedly connected with the pivot assembly.

[0009] Further, the height of the valve body is 510mm.

[0010] Further, the sealing assembly includes a polyurethane ring, an iron ring and a bolt assembly, the polyurethane ring is sleeved on the outer wall of the hopper, the iron ring is sleeved on the outer wall of the polyurethane ring, and the bolt assembly is arranged through the iron ring, the polyurethane ring and the hopper to fix the iron ring and the polyurethane ring on the outer wall of the hopper.

[0011] Furthermore, the lower end faces of the sheet metal ring, the polyurethane ring, and the hopper are located on the same plane.

[0012] Furthermore, the size of the sealing plate is not smaller than the size of the lower end face of the hopper, and the sealing plate opens or closes the passage of the hopper under the forward and reverse rotation of the rotating shaft.

[0013] Furthermore, the drive assembly includes a counterweight connecting rod fixedly connected to the rotating shaft, a counterweight disposed at the end of the counterweight connecting rod, a transmission arm assembly fixedly connected to the rotating shaft, and a drive mechanism drivably connected to the transmission arm assembly.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The valve body of the small-volume, high-sealing double-layer flap valve of this utility model is designed as an integral structure with two drive mechanisms located on opposite sides. The height of the valve body under this structure can be reduced to 510mm, which can be applied to lower ash discharge ports and avoid ash discharge restrictions.

[0016] 2. The bottom of the outer wall of the hopper of this utility model, which is a small-volume, high-sealing double-layer flap valve with a heavy hammer, is covered with a polyurethane ring fixed with a sheet metal ring, which can further ensure the sealing performance between the sealing plate and the bottom of the hopper. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a small-volume, high-sealing double-layer flap valve of the present invention;

[0019] Figure 2 This is a left view (perspective view) of a small-volume, high-sealing, double-layer flap valve of the present invention.

[0020] Figure 3 This is a schematic diagram of the existing counterweight double-layer flap valve.

[0021] Figure 4 for Figure 3 A left view (perspective view) of an existing double-layer flap valve with a counterweight.

[0022] Figure 5 This is a schematic diagram of the drive assembly structure of an existing counterweight double-layer flap valve.

[0023] Reference signs

[0024] 1: valve body;

[0025] 11: upper half unloading valve area; 12: lower half unloading valve area; 13: upper half rotating shaft mounting area; 14: lower half rotating shaft mounting area; 15: first hopper; 16: second hopper;

[0026] 2: sealing assembly;

[0027] 21: polyurethane ring; 22: iron ring; 23: bolt assembly;

[0028] 3: rotating shaft assembly;

[0029] 31: rotating shaft; 32: rocker; 33: sealing plate;

[0030] 41: weight connecting rod; 42: weight; 43: shaft sleeve; 44: pin shaft; 45: bearing seat; 46: bearing; 47: spring; 48: retaining ring; 49: sealing material;

[0031] 5: access door. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0033] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0034] First embodiment

[0035] Please refer to Figures 1-5 The technical scheme of the small-volume high-sealing heavy hammer type double-layer flap valve provided by the embodiment is as follows:

[0036] The valve body 1 is designed in an integrated structure, the valve body 1 includes an upper half unloading valve area 11 and a lower half unloading valve area 12; the inner cavities of the upper half unloading valve area 11 and the lower half unloading valve area 12 are respectively provided with a first hopper 15 and a second hopper 16; the side of the upper half unloading valve area 11 and the lower half unloading valve area 12, which is away from each other, respectively protrudes outward to form an upper half rotating shaft mounting area 13 and a lower half rotating shaft mounting area 14;

[0037] Sealing component 2 is sleeved on the bottom of the outer wall of the two hoppers and fixedly connected to the hoppers;

[0038] The rotating shaft assembly 3 includes two rotating shafts 31 that pass through two rotating shaft mounting areas and are rotatably connected to the rotating shaft mounting areas, two rocker arms 32 that are fixedly connected to the two rotating shafts 31 in the inner cavity area of ​​the valve body 1, and two sealing plates 33 that are fixedly connected to one end of the two rocker arms 32 that is not connected to the rotating shafts 31.

[0039] The drive assembly is located around the valve body 1 and is fixedly connected to the rotating shaft assembly 3.

[0040] As attached Figures 3-4 As shown, the existing double-layer flap valve is composed of two single-layer flap valves connected together by flange bolts. In this structure, the rotating shaft assembly 3 and the transmission arm assembly are located on the same side and driven by the same drive mechanism. This structure makes the overall height of the valve body 1 relatively high, which is not suitable for low discharge ports. In order to solve this problem, this design sets the two rotating shaft assemblies 3 and the transmission arm assembly opposite each other, and designs the valve body 1 as an integrated structure that adapts to the two oppositely set rotating shaft assemblies 3, reducing the unnecessary height and reducing the height of the valve body 1 to 510mm.

[0041] In specific implementation, the hopper and valve body 1 can be installed via flanges, etc. This utility model does not limit the installation method of the hopper.

[0042] Specifically, the sealing assembly 2 includes a polyurethane ring 21 sleeved on the bottom of the outer wall of the hopper, a sheet metal ring 22 sleeved on the outer wall of the polyurethane ring 21, and a bolt assembly 23; a plurality of the bolt assemblies 23 pass through the sheet metal ring 22, the polyurethane ring 21, and the hopper, fixing the sheet metal ring 22 and the polyurethane ring 21 to the outer wall of the hopper.

[0043] Specifically, the sheet metal ring 22, the polyurethane ring 21, and the lower end face of the hopper are located on the same plane, that is, when the hopper wears down with the particles, the lower end face of the polyurethane ring 21 can still achieve a sealed fit with the baffle.

[0044] Specifically, the size of the sealing plate 33 is not smaller than the size of the lower end face of the hopper, and the sealing plate 33 opens or closes the passage of the hopper under the forward and reverse rotation of the rotating shaft 31.

[0045] In specific implementation, using existing technologies such as Figure 5The driving assembly of the flap valve shown has been perfected, mainly including a weight connecting rod 41 fixedly connected with the rotating shaft 31, a weight 42 arranged at the end of the weight connecting rod 41, a transmission arm assembly fixedly connected with the rotating shaft 31 and a driving mechanism drivably connected with the transmission arm assembly. In the prior art, the transmission arms on the same side of the double-layer flap valve disclosed in the patent CN220378891U are driven by the same driving mechanism. In the present design, the transmission arms on the two sides are driven by one driving mechanism respectively. The focus of the present design is the placement position of the opposite design rotating shaft assembly 3 for reducing the height of the valve body 1 and the sealing assembly 2 for strengthening the sealing. Therefore, the driving assembly which has been perfected in the prior art will not be described in detail.

[0046] In addition, in the specific implementation, the rotating shaft 31 is provided with a shaft sleeve 43 and a pin shaft 44, and the two ends of the rotating shaft 31 are provided with bearing seats 45 at the connection positions with the valve body 1. The bearing seats 45 are provided with bearings 46 (the rotating shaft 31 is inserted into the bearings 46), springs 47, retaining rings 48 and sealing materials 49, which are common knowledge in the technical field and will not be described in detail.

[0047] Finally, it should be noted that: the above is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A small volume high sealing heavy duty double flap valve characterized in that, The utility model relates to a half discharge valve, including: The valve body is the integrated structure design, the valve body includes the upper half discharge valve area and the lower half discharge valve area, the first hopper and the second hopper are arranged in the cavity of the upper half discharge valve area and the lower half discharge valve area respectively, the upper half discharge valve area and the lower half discharge valve area respectively protrude outward to form the upper half rotating shaft mounting area and the lower half rotating shaft mounting area on the side away from each other, The sealing assembly is sleeved on the outer wall bottom of the two hoppers and is fixedly connected with the hoppers, The rotating shaft assembly includes two rotating shafts penetrating the two rotating shaft mounting areas and being rotatably connected with the rotating shaft mounting areas, two rocker arms being fixedly connected with the two rotating shafts in the cavity area of the valve body, and two sealing plates being fixedly connected with the two rocker arms at the end not connected with the rotating shafts, The drive assembly is arranged on the periphery of the valve body and is fixedly connected with the rotating shaft assembly.

2. The small volume high sealability weight type double layer flap valve according to claim 1, characterized by, The height of the valve body is 510mm. The sealing assembly includes a polyurethane ring sleeved on the outer wall bottom of the hopper, an iron ring sleeved on the outer wall of the polyurethane ring, and a bolt assembly, a plurality of bolt assemblies penetrating the iron ring, the polyurethane ring and the hopper, and fixing the iron ring and the polyurethane ring to the outer wall of the hopper.

3. The small volume high sealability weight type double layer flap valve according to claim 1, characterized by, The lower end surfaces of the iron ring, the polyurethane ring and the hopper are located in the same plane. The size of the sealing plate is not less than the size of the lower end surface of the hopper, and the sealing plate is driven by the forward and reverse rotation of the rotating shaft to open or close the passage of the hopper.

4. The small volume high sealability weight type double layer flap valve according to claim 3, characterized by The drive assembly includes a weight connecting rod fixedly connected with the rotating shaft, a weight arranged at the end of the weight connecting rod, a transmission arm assembly fixedly connected with the rotating shaft, and a drive mechanism drivably connected with the transmission arm assembly. ​ 5. The small volume high sealability weight type double layer flap valve according to claim 3, characterized by ​ ​ 6. The small volume high sealability weight type double layer flap valve according to claim 3, characterized by ​ ​

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