Louver valve of kiln tail dust collector

Abstract

The utility model discloses a shutter valve of a kiln tail dust collector, and belongs to the technical field of valves. The shutter valve of the kiln tail dust collector comprises a valve frame, a connecting rod, an end cover and a ball, a blade is arranged in the valve frame, and an upper rotating shaft and a lower rotating shaft are arranged at the top and the bottom of the blade respectively. The connecting rod is arranged at the top of the valve frame and is connected with the upper rotating shaft; the end cover is arranged at the bottom of the valve frame, and a containing groove is formed in the end cover; the balls are arranged in the containing grooves, and the lower rotating shaft is arranged on the balls. Through the arrangement, at least the following beneficial effects can be obtained: the lower rotating shaft of the blade is placed on the ball, so that the lower rotating shaft of the blade is not in direct contact with the end cover, and the friction between the lower rotating shaft of the blade and the end cover is converted into dynamic friction from static friction through contact between the ball and the end cover, so that the friction force is reduced, and normal operation of the louver valve is ensured; end cover maintenance is reduced, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a shutter valve for a kiln tail dust collector. Background Art

[0002] The blades of the shutter valves in existing kiln tail dust collectors rotate via a connecting rod to close or open the valve. The lower blades are subject to high friction due to friction between the lower blade shaft and the flat surface of the end cover. Furthermore, due to the close contact between the lower blade shaft and the end cover, effective lubrication is impossible, resulting in high resistance and preventing the blades from opening and closing properly. Furthermore, the high friction between the lower blade shaft and the end cover can easily cause screws to break, resulting in extensive maintenance. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a louver valve for a kiln tail dust collector. The louver valve for the kiln tail dust collector converts the friction between the rotating shaft under the blade and the end cover from static friction to dynamic friction, thereby reducing the friction force, ensuring the normal operation of the louver valve, reducing the maintenance of the end cover, and reducing maintenance costs.

[0004] According to the embodiment of the utility model, the shutter valve of the kiln tail dust collector includes a valve frame, a connecting rod, an end cover and a ball. The valve frame is provided with a blade, and the top and bottom of the blade are respectively provided with an upper rotating shaft and a lower rotating shaft; the connecting rod is provided at the top of the valve frame and is connected to the upper rotating shaft; the end cover is provided at the bottom of the valve frame, and a receiving groove is provided in the end cover; the ball is provided in the receiving groove, and the lower rotating shaft is placed on the ball.

[0005] According to the shutter valve of the kiln tail dust collector of the embodiment of the present invention, by such an arrangement, at least the following beneficial effects can be achieved: the lower rotating shaft of the blade is placed on the ball, so that the lower rotating shaft of the blade does not directly contact with the end cover, but contacts with the end cover through the ball, so that the friction between the lower rotating shaft of the blade and the end cover is converted from static friction to dynamic friction, the friction force is reduced, the normal operation of the shutter valve is ensured, the maintenance of the end cover is reduced, and the maintenance cost is reduced.

[0006] According to some embodiments of the present invention, an oil filling port is provided on the end cover for injecting lubricating oil into the receiving groove.

[0007] According to some embodiments of the present invention, a plurality of blades are provided in the valve frame, the upper rotating shafts of the plurality of blades are simultaneously connected to the connecting rod, and the number of the end covers and the balls corresponds one to one to the number of the blades.

[0008] According to some embodiments of the present invention, three blades are provided in the valve frame.

[0009] According to some embodiments of the present invention, seals are provided on both sides of the blades, and the seals include a main body portion and an extension portion that are connected to each other. The main body portion clamps the side edges of the blades therein. When the shutter valve is closed, the extension portions of the seals of two adjacent blades are arranged opposite to each other, and the extension portion of the seal of one of the blades can be sealed against the seal of the other blade.

[0010] According to some embodiments of the present invention, the sealing element is designed to be integrally formed.

[0011] According to some embodiments of the present invention, the sealing element is made of a flexible material.

[0012] According to some embodiments of the present invention, a fixing strip is further included, and buckles are provided on the front sides of the plurality of blades. When the shutter valve is closed, the fixing strip is provided in the plurality of buckles to limit the rotation of the blades.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the overall structure of the shutter valve of the kiln tail dust collector according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the sealing member of the shutter valve of the kiln tail dust collector according to an embodiment of the utility model;

[0017] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of area A in the middle.

[0018] Reference numerals:

[0019] Connecting rod 1, upper rotating shaft 2, valve frame 3, buckle 4, fixing bar 5, screw 6, end cover 7, ball bearing 8, lubricating oil 9, lower rotating shaft 10, blade 11, seal 12, main body 121, extension part 122. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Reference below Figures 1 to 3 To describe the shutter valve of the kiln tail dust collector according to an embodiment of the present utility model.

[0025] According to the embodiment of the utility model, the shutter valve of the kiln tail dust collector includes a valve frame 3, a connecting rod 1, an end cover 7 and a ball 8. A blade 11 is arranged in the valve frame 3, and the top and bottom of the blade 11 are respectively provided with an upper rotating shaft 2 and a lower rotating shaft 10; the connecting rod 1 is arranged at the top of the valve frame 3 and is connected to the upper rotating shaft 2; the end cover 7 is arranged at the bottom of the valve frame 3, and an accommodating groove is arranged in the end cover 7; the ball 8 is arranged in the accommodating groove, and the lower rotating shaft 10 is placed on the ball 8.

[0026] For example Figure 1 and Figure 3 As shown, the shutter valve of the kiln tail dust collector according to the embodiment of the utility model places the lower rotating shaft 10 of the blade 11 on the ball 8, so that the lower rotating shaft 10 of the blade 11 is not in direct contact with the end cover 7, but contacts the end cover 7 through the ball 8, so that the friction between the lower rotating shaft 10 of the blade 11 and the end cover 7 is converted from static friction to dynamic friction, the friction force is reduced, and the wear of the end cover 7 and the screw 6 can be reduced.

[0027] Furthermore, the receiving groove is a rectangular groove, the size of which is adapted to the size of the ball 8, which limits the movement of the ball 8 in the receiving groove, so that the ball 8 can only rotate in the receiving groove and cannot move in the horizontal direction.

[0028] During use, by rotating the connecting rod 1 , the blade 11 can be driven to rotate together through the upper rotating shaft 2 , and the blade 11 contacts the ball 8 through the lower rotating shaft 10 .

[0029] Furthermore, lubricating oil 9 is provided in the receiving groove to facilitate the rotation of the blade 11, avoid static friction between the lower rotating shaft 10 of the blade 11 and the end cover 7, reduce friction, ensure the normal operation of the shutter valve, and allow the blade 11 to rotate flexibly, thereby reducing maintenance of the end cover 7 and reducing maintenance costs.

[0030] At the same time, for example Figure 3 As shown, the end cover 7 is fixedly connected to the valve frame 3 by screws 6, which reduces the maintenance of the end cover 7 and the replacement of the screws 6.

[0031] In some specific embodiments of the present invention, an oil filling port is provided on the end cover 7 for injecting lubricating oil 9 into the receiving groove.

[0032] An oil filling port is opened on the end cover 7, and lubricating oil 9 can be injected into the receiving groove through the oil filling port. Lubricating oil 9 is stored around the ball 8. When the lower rotating shaft 10 of the blade 11 rotates, the friction force of the lower rotating shaft 10 is greatly reduced under the dual action of the ball 8 and the lubricating oil 9, and the blade 11 rotates flexibly, reducing power input and ensuring the normal operation of the shutter valve.

[0033] In some specific embodiments of the present invention, multiple blades 11 are provided in the valve frame 3 , the upper rotating shafts 2 of the multiple blades 11 are simultaneously connected to the connecting rod 1 , and the number of end covers 7 and balls 8 corresponds to the number of blades 11 .

[0034] For example Figure 1 As shown, a plurality of blades 11 are arranged in the valve frame 3, and the upper rotating shafts 2 of the plurality of blades 11 are connected to the connecting rod 1 at the same time. The number of the end covers 7 and the balls 8 also corresponds to the number of the blades 11. When the connecting rod 1 rotates, all the blades 11 can be driven to rotate at the same time without rotating the blades 11 one by one, and the rotation angles of the blades 11 can be ensured to be the same.

[0035] In some specific embodiments of the present invention, three blades 11 are provided in the valve frame 3 .

[0036] For example Figure 1 As shown, three blades 11 are provided in the valve frame 3 , and the valve frame 3 can be completely closed by the three blades 11 .

[0037] In some specific embodiments of the present invention, a seal 12 is provided on both sides of the blade 11. The seal 12 includes a main body 121 and an extension 122 that are connected to each other. The main body 121 clamps the side of the blade 11 therein. When the shutter valve is closed, the extensions 122 of the seals 12 of two adjacent blades 11 are arranged opposite to each other, and the extension 122 of the seal 12 of one blade 11 can be sealed against the seal 12 of the other blade 11.

[0038] For example Figure 2 As shown, a seal 12 is also provided on the blade 11. The seal 12 is arranged on both sides of the blade 11. The seal 12 includes a main body 121 and an extension 122 that are connected to each other. The main body 121 clamps the side of the blade 11 therein. When the shutter valve is closed, the extensions 122 of the seals 12 of two adjacent blades 11 are arranged opposite to each other, and the extension 122 of the seal 12 of one blade 11 can be sealed against the seal 12 of the other blade 11.

[0039] By such arrangement, when the shutter valve is closed, the gaps between adjacent blades 11 are filled by the sealing member 12 , thereby greatly improving the sealing performance of the shutter valve.

[0040] In some specific embodiments of the present invention, the sealing member 12 is designed to be integrally formed.

[0041] The integrally formed seal 12 makes the seal 12 easier to manufacture.

[0042] In some specific embodiments of the present invention, the sealing member 12 is made of a flexible material.

[0043] The sealing member 12 is made of a flexible material so that the extensions 122 between adjacent sealing members 12 can achieve interference fit, thereby ensuring the airtightness of the shutter valve. The flexible material can be made of rubber, silicone, polyethylene, and the like.

[0044] In some specific embodiments of the present invention, a fixing bar 5 is further included. Buckles 4 are provided on the front sides of the plurality of blades 11. When the shutter valve is closed, the fixing bar 5 is disposed in the plurality of buckles 4 to restrict the blades 11 from rotating.

[0045] For example Figure 1 As shown, each of the three blades 11 is provided with a clip 4 that serves to position and restrain the retaining bar 5. Furthermore, the clip 4 is an L-shaped member, one end of which is fixedly connected to the outer side of the blade 11, and the other end is vertically upward, allowing the retaining bar 5 to be placed in the groove formed by the L-shaped member and the blade 11. When the shutter valve is closed, the retaining bar 5 is located within the multiple clips 4, restricting the rotation of the blade 11 and ensuring the airtightness of the shutter valve.

[0046] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shutter valve for a kiln tail dust collector, characterized in that: include: A valve frame (3), wherein a blade (11) is provided in the valve frame (3), and an upper rotating shaft (2) and a lower rotating shaft (10) are provided at the top and bottom of the blade (11), respectively; A connecting rod (1), the connecting rod (1) being arranged on the top of the valve frame (3) and connected to the upper rotating shaft (2); An end cover (7), the end cover (7) being arranged at the bottom of the valve frame (3), and a receiving groove being arranged in the end cover (7); A ball (8), the ball (8) is arranged in the receiving groove, and the lower rotating shaft (10) is placed on the ball (8).

2. The shutter valve of the kiln tail dust collector according to claim 1 is characterized in that: The end cover (7) is provided with an oil filling port for injecting lubricating oil (9) into the containing groove.

3. The shutter valve of the kiln tail dust collector according to claim 1, characterized in that: A plurality of blades (11) are provided in the valve frame (3), the upper rotating shafts (2) of the plurality of blades (11) are simultaneously connected to the connecting rod (1), and the number of the end covers (7) and the balls (8) corresponds one to one to the number of the blades (11).

4. The shutter valve of the kiln tail dust collector according to claim 3 is characterized in that: Three blades (11) are arranged in the valve frame (3).

5. The shutter valve of the kiln tail dust collector according to claim 3, characterized in that: A sealing member (12) is provided on both sides of the blade (11), and the sealing member (12) includes a main body (121) and an extension portion (122) connected to each other. The main body (121) clamps the side edge of the blade (11) therein. When the shutter valve is closed, the extension portions (122) of the sealing members (12) of two adjacent blades (11) are arranged opposite to each other, and the extension portion (122) of the sealing member (12) of one blade (11) can be sealed against the sealing member (12) of the other blade (11).

6. The shutter valve of the kiln tail dust collector according to claim 5, characterized in that: The sealing member (12) is designed to be integrally formed.

7. The shutter valve of the kiln tail dust collector according to claim 5, characterized in that: The sealing member (12) is made of a flexible material.

8. The shutter valve of the kiln tail dust collector according to claim 3, characterized in that: It also includes a fixing strip (5), and a plurality of buckles (4) are provided on the front sides of the plurality of blades (11). When the shutter valve is closed, the fixing strip (5) is provided in the plurality of buckles (4) to limit the rotation of the blades (11).

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