Pipeline connecting assembly of pneumatic conveying valve

Abstract

The utility model discloses a pipeline connecting assembly of a pneumatic conveying valve, belongs to the technical field of pipeline connecting structures, and provides the pipeline connecting assembly of the pneumatic conveying valve, which can be quickly disassembled and assembled and comprises a first tightening hoop and a second tightening hoop, one side of the first tightening hoop is rotationally connected with one side of the second tightening hoop, the other side of the first tightening hoop is connected with the other side of the second tightening hoop through a connecting piece, the first tightening hoop comprises a first half-moon ring, the inner wall of the first half-moon ring is provided with a pair of first inner conical buckles, and the ends, with large inner diameters, of the two first inner conical buckles are opposite; the second tightening hoop comprises a second half-moon ring, the inner wall of the second half-moon ring is provided with a pair of second inner conical buckles, and the ends, with the large inner diameters, of the two second inner conical buckles are opposite. According to the pneumatic conveying valve, the two tightening hoop structures with the inner conical surfaces are designed, the end of the pipeline and the input end or the output end of the pneumatic conveying valve can be firmly restrained together only through few bolts and nuts, dismounting and mounting operation is faster and more convenient, and the mounting efficiency of the pneumatic conveying valve is improved.

Description

Technical Field

[0001] This application relates to the field of pipeline connection structure technology, and in particular to a pipeline connection assembly for a pneumatic conveying valve. Background Technology

[0002] The gas conveyed inside the pneumatic conveying valve has a high pressure, so a flange is required when connecting it to the gas pipeline. The traditional flange connection method uses multiple bolts for fastening. Since each bolt needs to be tightened with a tool during installation, it takes a lot of time and is very inconvenient for the installation of multiple pneumatic conveying valves. Summary of the Invention

[0003] The purpose of this application is to provide a pipeline connection assembly for a pneumatic conveying valve that can be quickly disassembled and assembled.

[0004] To achieve the above objectives, this application provides a pipeline connection assembly for a pneumatic conveying valve: including a first clamping clamp and a second clamping clamp, wherein the first clamping clamp and the second clamping clamp are rotatably connected on one side and connected on the other side by a connector, the first clamping clamp includes a first crescent ring, the inner wall of the first crescent ring has a pair of first inner conical buckles, the larger inner diameter ends of the two first inner conical buckles are opposite each other, and the inner wall of each first inner conical buckle is formed with a first pipe groove; the second clamping clamp includes a second crescent ring, the inner wall of the second crescent ring has a pair of second inner conical buckles, the larger inner diameter ends of the two second inner conical buckles are opposite each other, and the inner wall of each second inner conical buckle is formed with a second pipe groove, used to make way for the pipeline structure and avoid interference between the connection assembly and the pipeline structure during installation.

[0005] As a preferred embodiment, the outer side of the first crescent ring has a first ear plate, which is parallel to the planar side of the first crescent ring. The outer side of the second crescent ring has a second ear plate, which is parallel to the planar side of the second crescent ring. The connector connects the first ear plate and the second ear plate to form a lever structure, which causes the inner cone buckle located between the hinge shaft and the ear plate to exert a greater squeezing force on the hairpin.

[0006] As a preferred embodiment, the first ear plate has a first through hole, and the second ear plate has a second through hole. The connector includes a bolt and a nut. The bolt is adapted to pass through the first and second through holes and engage with the nut. By rotating the bolt relative to the nut, a large compressive force can be generated on the two ear plates.

[0007] As a preferred embodiment, an anti-rotation sleeve is fixedly connected to the side of the second ear plate opposite to the first ear plate, and the nut is adapted to be embedded in the anti-rotation sleeve, so that the nut can be kept stable without the need to use two wrenches.

[0008] As a preferred embodiment, the end with the smaller inner diameter of the first inner cone buckle is flush with the end face of the first crescent ring, and the end with the smaller inner diameter of the second inner cone buckle is flush with the end face of the second crescent ring, so that the tightening clamp has a relatively flat end face.

[0009] As a preferred embodiment, the first crescent ring has a first bushing on its planar side, and the second crescent ring has a second bushing on its planar side. The first bushing and the second bushing are rotatably connected to a hinge shaft to restrict the relative movement of the first clamping hoop and the second clamping hoop.

[0010] As a preferred embodiment, there are several first bushings arranged along the axis, and there are also several second bushings arranged along the axis. The first bushings and the second bushings are arranged at intervals to improve the tightness of the fit between the first and second clamping hoops.

[0011] As a preferred embodiment, each of the first bushings has a first shaft hole that passes through the end face, and all the first shaft holes are collinear. Each of the second bushings has a second shaft hole that passes through the end face, and all the second shaft holes are collinear. The hinge shaft cooperates with all the first shaft holes and the second shaft holes to form a rotating pair. The hinge shaft also serves as a lever shaft to amplify the compressive force between the first inner conical buckle and the second inner conical buckle.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing two tight clamping structures with inner conical surfaces, only a few bolts and nuts are needed to firmly bind the end of the pipeline to the input or output end of the pneumatic conveying valve, making disassembly and assembly operations faster and more convenient, and improving the installation efficiency of the pneumatic conveying valve.

[0014] (2) By using a hinge shaft to rotate the connection on one side of the two tight clamps, the number of bolts and nuts is further reduced, and an efficient and stable connection can be achieved with only one set of bolts and nuts. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the pipeline connection assembly of the pneumatic conveying valve.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the pipeline connection assembly of the pneumatic conveying valve.

[0017] Figure 3 This is a three-dimensional structural diagram of the pipeline connection assembly of the pneumatic conveying valve after the connecting parts have been removed.

[0018] Figure 4A three-dimensional structural diagram showing the fit between the hinge shaft and the first clamping clamp of the pipeline connection assembly for the pneumatic conveying valve.

[0019] Figure 5 A three-dimensional structural diagram of the first clamping clamp of the pipeline connection assembly for the pneumatic conveying valve.

[0020] Figure 6 A three-dimensional structural diagram of the second clamping clamp of the pipeline connection assembly for the pneumatic conveying valve.

[0021] Figure 7 A three-dimensional cross-sectional view of the second clamping clamp of the pipeline connection assembly for the pneumatic conveying valve.

[0022] In the diagram: 1. First tightening clamp; 101. First crescent ring; 102. First inner conical buckle; 103. First ear plate; 104. First through hole; 105. First pipe groove; 106. First bushing; 107. First shaft hole; 2. Second tightening clamp; 201. Second crescent ring; 202. Second inner conical buckle; 203. Second ear plate; 204. Second through hole; 205. Second pipe groove; 206. Second bushing; 207. Second shaft hole; 208. Anti-rotation sleeve; 3. Hinge shaft; 4. Connector; 401. Bolt; 402. Nut. Detailed Implementation

[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0027] like Figure 1-7 The pipeline connection assembly of the pneumatic conveying valve shown includes a first clamping clamp 1 and a second clamping clamp 2. The first clamping clamp 1 includes a first crescent ring 101, and the second clamping clamp 2 includes a second crescent ring 201. Both the first crescent ring 101 and the second crescent ring 201 are semi-cylindrical. The first clamping clamp 1 and the second clamping clamp 2 are rotatably connected on one side. To achieve the rotatable connection, the planar side of the first crescent ring 101 has a first bushing 106 with a cylindrical outer surface tangent to the cylindrical outer surface of the first crescent ring 101. The planar side of the second crescent ring 201 has a second bushing 206, which also has a cylindrical outer surface tangent to the cylindrical outer surface of the second crescent ring 201. The first bushing 106 and the second bushing 206 are rotatably connected to a hinge shaft 3. In fact, the first bushing 106 is divided into several parts, which are arranged along the axis. The second bushing 206 is also divided into several parts, which are also arranged along the axis. Each first bushing 106 has a first shaft hole 107 that passes through the end face. All the first shaft holes 107 are collinear and collinear with the axis of the cylindrical outer surface of the first bushing 106. Each second bushing 206 has a second shaft hole 207 that passes through the end face. All the second shaft holes 207 are collinear and collinear with the axis of the cylindrical outer surface of the second bushing 206. The hinge shaft 3 cooperates with all the first shaft holes 107 and the second shaft holes 207 to form a rotating pair. The two ends of the hinge shaft 3 are usually fixedly connected with a limiting ring structure to prevent the hinge shaft 3 from moving inside the first shaft hole 107 and the second shaft hole 207.

[0028] The other side of the first tightening clamp 1 and the second tightening clamp 2, that is, the side away from the hinge axis 3, is connected by a connector 4. Specifically: the outer side of the first crescent ring 101 has a first ear plate 103, which is parallel to the planar side of the first crescent ring 101; the outer side of the second crescent ring 201 has a second ear plate 203, which is parallel to the planar side of the second crescent ring 201. The connector 4 is used to connect the first ear plate 103 and the second ear plate 203. To facilitate the connection, a [feature / feature] is provided on the first ear plate 103. The first through hole 104 and the second through hole 204 are provided in the second ear plate 203. The connector 4 includes a bolt 401 and a nut 402. The bolt 401 can pass through the first through hole 104 and the second through hole 204 and then cooperate with the nut 402. An anti-rotation sleeve 208 is fixedly connected to the side of the second ear plate 203 facing away from the first ear plate 103. The nut 402 is just embedded in the anti-rotation sleeve 208. The anti-rotation sleeve 208 can effectively restrict the rotation of the nut 402, so only a wrench is needed to tighten or loosen the cooperation between the bolt 401 and the nut 402.

[0029] The inner wall of the first crescent ring 101 has a pair of first inner conical buckles 102, with the larger inner diameter ends of the two first inner conical buckles 102 facing each other, and the smaller inner diameter ends of the two first inner conical buckles 102 being flush with the two end faces of the first crescent ring 101. The inner wall of each first inner conical buckle 102 is formed with a first pipe groove 105 for making way for the pipe structure. The inner wall of the second crescent ring 201 has a pair of second inner conical buckles 202, with the larger inner diameter ends of the two second inner conical buckles 202 facing each other, and the smaller inner diameter ends of the two second inner conical buckles 202 being flush with the two end faces of the second crescent ring 201. The inner wall of each second inner conical buckle 202 is formed with a second pipe groove 205, also for making way for the pipe structure.

[0030] Working principle: In the initial state, the first clamping clamp 1 and the second clamping clamp 2 are mutually inert, and the pipeline connection assembly is in the open state. When connection is required, align the inlet or outlet flange of the pneumatic conveying valve with the flange of the external pipeline. A sealing ring is sandwiched between the two flanges. Then, place the second clamping clamp 2 under the two flanges and the first clamping clamp 1 on top of the two flanges. The two flanges simultaneously abut against the inner conical walls of the first inner conical buckle 102 and the second inner conical buckle 202. Then, fasten the nut 402 into the anti-rotation sleeve 208, allowing the bolt 401 to pass through the first through hole 104 and the second through hole 204 in sequence and engage with the nut 402 threadedly. By rotating the bolt 401, the bolt 401 relative to the nut 402 is adjusted. The rotational motion is converted into translational motion, gradually pulling the first ear plate 103 and the second ear plate 203 closer together. Since the hinge shaft 3 restricts the distance between the first clamping clamp 1 and the other side of the second clamping clamp 2, it will amplify the compressive force of the first inner cone buckle 102 and the second inner cone buckle 202 on the two flanges. Furthermore, the inner cone surfaces of the first inner cone buckle 102 and the second inner cone buckle 202 will generate a component force that brings the two flanges closer to each other, forcing the end of the external pipeline to be in close contact with the input or output end of the pneumatic conveying valve and remain stable, thus achieving an airtight seal. In order to make the force on the flange more uniform, the flange itself should preferably also have an outer cone surface, or at least the edge of the flange should have a chamfer that can fit against the inner wall of the inner cone buckle.

[0031] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A pipeline connection assembly for a pneumatic conveying valve, characterized in that: The utility model provides a kind of pipe clamp, including first tight bundle (1) and second tight bundle (2), one side of first tight bundle (1) and second tight bundle (2) is rotatably connected, the other side is connected by connecting piece (4), first tight bundle (1) includes first half moon ring (101), the inner wall of first half moon ring (101) has a pair of first inner taper buckle (102), the larger end of the inner diameter of two first inner taper buckle (102) is opposite, the inner wall of each first inner taper buckle (102) is formed with first pipe clamp slot (105);Second tight bundle (2) includes second half moon ring (201), the inner wall of second half moon ring (201) has a pair of second inner taper buckle (202), the larger end of the inner diameter of two second inner taper buckle (202) is opposite, the inner wall of each second inner taper buckle (202) is formed with second pipe clamp slot (205).

2. The pneumatic conveying valve pipe connection assembly of claim 1, wherein: The outer side of first half moon ring (101) has first lug (103), and the plane side of first half moon ring (101) is parallel, the outer side of second half moon ring (201) has second lug (203), and the plane side of second half moon ring (201) is parallel, and connecting piece (4) connects first lug (103) with second lug (203).

3. The pneumatic conveying valve pipe connection assembly of claim 2, wherein: First lug (103) is provided with first through hole (104), and second lug (203) is provided with second through hole (204), and connecting piece (4) includes bolt (401) and nut (402), and bolt (401) is suitable for being embedded in stop sleeve (208) after passing through first through hole (104) and second through hole (204) and cooperating with nut (402).

4. The pneumatic conveying valve pipe connection assembly of claim 3, wherein: The side of second lug (203) away from first lug (103) is fixedly connected with stop sleeve (208), and nut (402) is suitable for being embedded in stop sleeve (208).

5. The pneumatic conveying valve pipe connection assembly of claim 4, wherein: The smaller end of the inner diameter of first inner taper buckle (102) is flush with the end face of first half moon ring (101), and the smaller end of the inner diameter of second inner taper buckle (202) is flush with the end face of second half moon ring (201).

6. A pipe connection assembly for a pneumatic conveying valve according to any one of claims 1 to 5, wherein: The plane side of first half moon ring (101) has first shaft sleeve (106), and the plane side of second half moon ring (201) has second shaft sleeve (206), and first shaft sleeve (106) and second shaft sleeve (206) are rotatably connected with a hinge shaft (3) together.

7. The pneumatic conveying valve pipe connection assembly of claim 6, wherein: First shaft sleeve (106) has a plurality of, and these first shaft sleeves (106) are arranged along axis, and second shaft sleeve (206) also has a plurality of, and these second shaft sleeves (206) are also arranged along axis.

8. The pneumatic conveying valve pipe connection assembly of claim 7, wherein: Each first shaft sleeve (106) is provided with first shaft hole (107) penetrating end face, all first shaft holes (107) are collinear, each second shaft sleeve (206) is provided with second shaft hole (207) penetrating end face, all second shaft holes (207) are collinear, and hinge shaft (3) cooperates with all first shaft holes (107) and second shaft holes (207) to form rotary pair.

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