阅读说明：本技术 一种可万向调节的通气管 (Universal adjustable breather pipe ) 是由 霍耿磊 王守杰 章刚 甘晓雁 杨国政 刘春雷 于 2019-11-27 设计创作，主要内容包括：本发明提供了一种可万向调节的通气管,其包括：万向接头,其包括球头、球座、进气管和紧固组件,球头设于球座内,球头内具有贯通孔,进气管与球头或球座连接,并与贯通孔连通,紧固组件用于紧固球头和球座；布气管,其设于万向接头上,并与贯通孔连通,布气管上设有布气孔；减震组件,其设于布气管上,通过减震组件使布气管与外接设备连接；其中,球头和球座能够相对转动,并带动布气管随动,以调节布气管相对外接设备壁面的平行度。本发明通过对布气管的万向调节,可以保证布气管与设备壁面平行,避免产生较大的安装应力,同时利用减震组件吸收设备运行时进入通气管的高压气体产生的振动,有效减小振动,避免通气管发生振动损坏。(The invention provides a universal adjustable breather pipe, which comprises: the universal joint comprises a ball head, a ball seat, an air inlet pipe and a fastening assembly, wherein the ball head is arranged in the ball seat, a through hole is formed in the ball head, the air inlet pipe is connected with the ball head or the ball seat and is communicated with the through hole, and the fastening assembly is used for fastening the ball head and the ball seat; the air distribution pipe is arranged on the universal joint and communicated with the through hole, and is provided with air distribution holes; the damping assembly is arranged on the air distribution pipe and enables the air distribution pipe to be connected with external equipment through the damping assembly; the ball head and the ball seat can rotate relatively, and the air distribution pipe is driven to follow up, so that the parallelism of the air distribution pipe relative to the wall surface of the external equipment is adjusted. The invention can ensure that the air distribution pipe is parallel to the wall surface of the equipment by the universal adjustment of the air distribution pipe, avoids generating larger installation stress, and simultaneously absorbs the vibration generated by high-pressure gas entering the vent pipe when the equipment runs by utilizing the damping component, thereby effectively reducing the vibration and avoiding the damage of the vent pipe caused by vibration.)

1. A universally adjustable snorkel, comprising:

the universal joint comprises a ball head, a ball seat, an air inlet pipe and a fastening assembly, wherein the ball head is arranged in the ball seat, a through hole is formed in the ball head, the air inlet pipe is connected with the ball head or the ball seat and is communicated with the through hole, and the fastening assembly is used for fastening the ball head and the ball seat;

the air distribution pipe is arranged on the universal joint and is communicated with the through hole, and an air distribution hole is formed in the air distribution pipe;

the damping assembly is arranged on the air distribution pipe and enables the air distribution pipe to be connected with external equipment through the damping assembly;

the ball head and the ball seat can rotate relatively and drive the air distribution pipe to follow up, so that the parallelism of the air distribution pipe relative to the wall surface of the external equipment is adjusted, and when the air distribution pipe rotates to be parallel to the wall surface of the external equipment, the ball head and the ball seat are fastened by fastening the fastening assembly.

2. The universal adjustable vent pipe according to claim 1, wherein one end of the air inlet pipe is sealed to form a sealed end, the other end of the air inlet pipe is open to form an air inlet end, the sealed end forms the ball seat, an opening is formed on a pipe wall of the sealed end, and the ball head is limited in the sealed end, and one side of the orifice of the through hole extends out of the opening and is fixedly connected with the air distribution pipe.

3. The universal adjustable vent pipe according to claim 2, wherein the number of the ball heads is two, the number of the gas distribution pipes is two, two opposite openings are provided on the pipe wall of the sealed end, the two ball heads are arranged in the sealed end in parallel, the orifices of one end of the through holes in the two ball heads are opposite to the two openings and respectively extend out of the corresponding openings, and the orifices of the other end of the two through holes in the two ball heads are both communicated with the gas inlet pipe; the two air distribution pipes are respectively connected to the two ball heads, and the pipe orifices of the air distribution pipes are in butt joint with the orifices.

4. The universally adjustable vent pipe according to claim 3, wherein the fastening assembly comprises two clamping rings respectively sleeved on two portions of the ball heads extending out of the sealing end, at least four bolts penetrating the two clamping rings, and two nuts arranged on each bolt and used for screwing inwards from the outer sides of the two clamping rings, and when the fastening assembly is fastened, the clamping rings and the ball heads, the clamping rings and the sealing end, and the sealing end and the ball heads are tightly attached and sealed.

5. The universally adjustable vent pipe of claim 1, wherein the ball seat comprises a left seat body and a right seat body, the left seat body and the right seat body are buckled with each other to form an accommodating cavity, at least one of the sides of the left seat body and the right seat body facing away from each other is connected with the air distribution pipe, and the air distribution pipe is communicated with the accommodating cavity; the bulb is arranged in the containing cavity, and the hole opening of the through hole of the bulb is communicated with the pipe opening of the gas distribution pipe.

6. The universally adjustable snorkel as recited in claim 5, wherein the fastening assembly comprises at least four bolts disposed through the outer edges of the left and right base bodies and two nuts disposed on each of the bolts, the nuts being tightened inwardly from the outer sides of the left and right base bodies to tighten the left and right base bodies.

7. The universally adjustable vent pipe of claim 1, wherein the shock assembly comprises an elastic member, a connecting plate, a gasket, a clip, and a connecting member;

the elastic component passes through the connecting plate support press in on the external device, the gasket is located the connecting plate deviates from one side of elastic component and with the laminating of gas distribution pipe, the clamp cover is located on the gas distribution pipe, two ends of clamp support in on the gasket, the connecting piece is worn to establish in proper order end, gasket, the connecting block of clamp, so that the gas distribution pipe with external device flexonics.

8. A universally adjustable vent pipe according to claim 7, wherein the resilient member is a plurality of springs arranged side by side, one end of each spring abutting the connecting block and the other end abutting the external device.

9. The universally adjustable snorkel of claim 1, wherein a connecting tube is disposed within the gas distribution hole, and a venting tab is disposed within the connecting tube.

10. The universally adjustable vent tube of claim 9, wherein the connecting tube is welded to the gas distribution tube; the ventilation sheet is welded with the connecting pipe.

Technical Field

The invention relates to the technical field of powder conveying, in particular to a universal-adjustable vent pipe.

Background

The powder conveying process is related to the fields of coal chemical industry, metallurgy, food processing and the like, and in the powder conveying process, a vent pipe is required to be utilized to uniformly blow loose gas into equipment, so that the powder is loosened and fluidized, the powder is prevented from being stacked to form bridging, and the normal continuous conveying of the powder is ensured. Coal gasification, especially pulverized coal pressure gasification, is a clean coal utilization technology, has been rapidly developed in recent years, and has been widely used. The pulverized coal pressurized conveying technology is an indispensable technical link of the pulverized coal pressurized gasification technology, and a vent pipe with high reliability and convenient installation is required in the link.

The existing vent pipe used in industry adopts a traditional gas distribution flute pipe, the structure of the traditional gas distribution flute pipe is that two flute pipe branch pipes clamp a gas inlet pipe through a bolt, and the installation method is that after the gas inlet pipe is connected with conveying equipment, the flute pipe branch pipes are connected with the gas inlet pipe and fixed on the equipment wall surface of the conveying equipment. The main problems are that when a traditional gas distribution flute pipe is installed, the requirement of the tolerance of the verticality of the branch pipe and the gas inlet pipe of the flute pipe is less than or equal to 3mm, the tolerance of the verticality of the gas inlet of conveying equipment and the wall surface of the equipment is large due to the manufacturing standard of a pressure container adopted by the manufacturing conveying equipment, the position deviation of a wind distribution tee joint of the flute pipe is caused due to the verticality deviation of the gas inlet pipe, and then the branch pipe of the flute pipe connected with the air inlet pipe can generate large position deviation, and the two branch pipes of the flute pipe and the gas inlet pipe are mutually restricted when being installed, so that the installation stress is. Secondly, the high-pressure gas that intermittently got into the flute pipe in the conveying equipment operation causes the flute pipe vibration, because flute pipe fixed connection does not have any buffer on conveying equipment, receives great installation stress influence in addition, and this kind of vibration can lead to connecting bolt not hard up to drop, and the sealed inefficacy of flute pipe air distribution tee bend, and then causes the flute pipe to block up and damage, and unable normal transport fluidization gas leads to equipment to normally work finally.

In order to solve the problem of flute tube sealing failure, chinese patent application No. 201820307305.0 discloses an air distribution flute tube with a sealing device, which adopts a manner that flute tubes on two sides are separately assembled and respectively sealed to achieve effective sealing of the flute tubes. The main disadvantages are that: 1. although the transition pipe is arranged, the problem of verticality deviation of an air inlet of conveying equipment is not solved, so that the flute pipe and the air inlet pipe are still restricted when being installed, and large installation stress exists in installation; 2. the flute pipe vibration problem cannot be solved, and after the flute pipe is fixedly installed, the flute pipe still has the possibility of damage caused by large vibration.

Disclosure of Invention

In order to solve the problems, the invention provides a universal adjusting vent pipe to solve the problems that the vent pipe has larger installation stress when being installed and is easy to damage due to vibration in use.

In order to achieve the purpose, the invention adopts the following technical scheme:

a universally adjustable snorkel comprising:

the universal joint comprises a ball head, a ball seat, an air inlet pipe and a fastening assembly, wherein the ball head is arranged in the ball seat, a through hole is formed in the ball head, the air inlet pipe is connected with the ball head or the ball seat and is communicated with the through hole, and the fastening assembly is used for fastening the ball head and the ball seat;

the air distribution pipe is arranged on the universal joint and is communicated with the through hole, and an air distribution hole is formed in the air distribution pipe;

the damping assembly is arranged on the air distribution pipe and enables the air distribution pipe to be connected with external equipment through the damping assembly;

the ball head and the ball seat can rotate relatively and drive the air distribution pipe to follow up, so that the parallelism of the air distribution pipe relative to the wall surface of the external equipment is adjusted, and when the air distribution pipe rotates to be parallel to the wall surface of the external equipment, the ball head and the ball seat are fastened by fastening the fastening assembly.

Optionally, a port of intake pipe seals and forms the seal end, and the uncovered air inlet end that forms of the other end, the seal end forms the ball seat, be equipped with the opening on the pipe wall of seal end, the bulb be spacing in just have one side in the orifice of perforating hole stretch out the opening and with gas distribution pipe fixed connection in the seal end.

Furthermore, the number of the ball heads is two, the number of the air distribution pipes is two, two opposite openings are arranged on the pipe wall of the sealing end, the two ball heads are arranged in the sealing end in parallel, orifices of one end of each through hole in each ball head are opposite to the two openings one by one and respectively extend out of the corresponding openings, and orifices of the other end of each through hole in each ball head are communicated with the air inlet pipe; the two air distribution pipes are respectively connected to the two ball heads, and the pipe orifices of the air distribution pipes are in butt joint with the orifices.

Further, fastening components including respectively overlapping locate two the bulb stretches out two grip rings on the part outside the seal end, wear to locate four piece at least bolts on two grip rings, and locate every be used for following two on the bolt two nuts that the outside of grip ring inwards screwed work as fastening components fastening back, the grip ring with between the bulb the grip ring with between the seal end and the seal end with all closely laminate and seal between the bulb.

Optionally, the ball seat comprises a left seat body and a right seat body, the left seat body and the right seat body are buckled with each other to form an accommodating cavity, at least one of the sides of the left seat body and the right seat body, which are away from each other, is connected with the air distribution pipe, and the air distribution pipe is communicated with the accommodating cavity; the bulb is arranged in the containing cavity, and the hole opening of the through hole of the bulb is communicated with the pipe opening of the gas distribution pipe.

Furthermore, the fastening assembly comprises at least four bolts penetrating the outer edges of the left seat body and the right seat body and two nuts arranged on each bolt, and the nuts are screwed inwards from the outer sides of the left seat body and the right seat body to tightly push the left seat body and the right seat body.

Further, the shock absorption assembly comprises an elastic piece, a connecting plate, a gasket, a clamp and a connecting piece;

the elastic component passes through the connecting plate support press in on the external device, the gasket is located the connecting plate deviates from one side of elastic component and with the laminating of gas distribution pipe, the clamp cover is located on the gas distribution pipe, two ends of clamp support in on the gasket, the connecting piece is worn to establish in proper order end, gasket, the connecting block of clamp, so that the gas distribution pipe with external device flexonics.

Furthermore, the elastic parts are a plurality of springs arranged in parallel, one end of each spring is abutted to the connecting block, and the other end of each spring is abutted to the external equipment.

Furthermore, a connecting pipe is arranged in the air distribution hole, and an air ventilation sheet is arranged in the connecting pipe.

Further, the connecting pipe is welded with the gas distribution pipe; the ventilation sheet is welded with the connecting pipe.

Compared with the prior art, the invention has the beneficial effects that: according to the universal adjustable vent pipe, the ball head and the ball seat are arranged, the air distribution pipe can be driven to follow up by utilizing the relative rotation between the ball head and the ball seat, the universal adjustment of the air distribution pipe is realized, the position can be conveniently adjusted during installation, the air distribution pipe is ensured to be parallel to the wall surface of equipment, and the generation of larger installation stress is avoided. On the other hand, the vibration damping component is arranged, so that the vibration generated by high-pressure gas entering the vent pipe of the embodiment of the invention when the equipment runs is absorbed, the vibration of the vent pipe is effectively reduced, and the damage of the vent pipe caused by the vibration is avoided.

The universal adjustable vent pipe provided by the invention has the advantages of high assembly efficiency, difficulty in damage and good popularization and application values.

Drawings

FIG. 1 is a partial cross-sectional view of one embodiment of a universally adjustable vent provided by embodiments of the present invention;

FIG. 1a is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 2 is a partial cross-sectional view of another embodiment of a universally adjustable vent provided in accordance with embodiments of the present invention;

FIG. 2a is a cross-sectional view taken along line B-B of FIG. 2;

fig. 3 is a schematic structural diagram of a damping assembly of a universally adjustable vent pipe according to an embodiment of the present invention.

Fig. 4 is a schematic view of a use state of the universally adjustable vent pipe provided by the present invention.

Reference numerals:

1-a universal joint; 2-a shock-absorbing assembly; 3-air distribution holes; 4-gas distribution pipe; 5-a nut; 6-bolt; 7-an air inlet; 8-equipment wall surface; 11-an air inlet pipe; 12-a seal; 13-a clamping ring; 14-a ball head; 15-sealing end; 16-through holes; 17-left sealing seat; 18-right sealing seat; 19-a housing chamber; 21-an elastic member; 22-a connecting plate; 23-a gasket; 24-a clamp; 25-a connector; 31-ventilating tablets; 32-connecting tube.

Detailed Description

Various aspects and features of the present application are described herein with reference to the drawings.

It will be understood that various modifications may be made to the embodiments of the present application. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the application.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with a general description of the application given above and the detailed description of the embodiments given below, serve to explain the principles of the application.

These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.

It should also be understood that, although the present application has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the application, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the application of unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.

The breather pipe that uses in industry at present ubiquitous installation stress is great, the condition that can not normally install even, and the breather pipe is damaged because of the vibration easily in the use moreover, can't normally carry the fluidization gas, also finally leads to equipment can not normally work.

In view of this, the embodiment of the present invention provides a universal adjustable vent pipe, which has a simple and reasonable structure, is convenient to install and use, and is not easy to damage. As shown in fig. 1 to 3, the universal adjustable vent pipe (vent pipe for short) of the embodiment of the present invention specifically includes:

the universal joint 1 comprises a ball head 14, a ball seat, an air inlet pipe 11 and a fastening assembly, wherein the ball head 14 is arranged in the ball seat, a through hole 16 is formed in the ball head 14, the air inlet pipe 11 is connected with the ball head 14 or the ball seat and is communicated with the through hole 16, and the fastening assembly is used for fastening the ball head 14 and the ball seat;

the air distribution pipe 4 is arranged on the universal joint 1 and is communicated with the through hole 16, and an air distribution hole 3 is formed in the air distribution pipe 4;

the damping component 2 is arranged on the air distribution pipe 4, and the air distribution pipe 4 is connected with external equipment through the damping component 2;

the bulb 14 and the ball seat can rotate relatively, the air distribution pipe 4 is driven to follow up, the parallelism of the air distribution pipe 4 relative to the wall surface of the external equipment is adjusted, and when the air distribution pipe 4 rotates to be parallel to the wall surface of the external equipment, the bulb 14 and the ball seat are fastened through fastening the fastening assembly.

According to the embodiment of the invention, the bulb 14 and the ball seat are arranged, and the gas distribution pipe 4 can be driven to follow up by utilizing the relative rotation between the bulb 14 and the ball seat, so that the universal adjustment of the gas distribution pipe 4 is realized, the gas distribution pipe 4 is ensured to be parallel to the wall surface 8 of the equipment, and the generation of larger installation stress is avoided. On the other hand, the damping assembly 2 is arranged, so that the vibration generated by high-pressure gas entering the vent pipe of the embodiment of the invention when the equipment runs is absorbed, the vibration of the vent pipe is effectively reduced, and the damage of the vent pipe caused by the vibration is avoided.

The following describes a specific structure of the universal adjustable ventilation pipe according to the present invention with reference to two embodiments.

FIG. 1 is a partial cross-sectional view of one embodiment of a universally adjustable vent pipe as provided herein, and FIG. 1a is a cross-sectional view taken along line A-A of FIG. 1. As shown in FIGS. 1 and 1a, this embodiment provides a universally adjustable vent pipe wherein one end of an air inlet conduit 11 of a universal joint 1 is closed to form a closed end 15, the other end is open to form an air inlet end, and the closed end 15 forms the ball seat; an opening is arranged on the pipe wall of the sealing end 15, and the bulb 14 is limited in the sealing end 15 and extends out of the opening at one side of the orifice with the through hole 16 and is fixedly connected with the gas distribution pipe 4. This embodiment makes simple structure through regarding the part of intake pipe 11 as the ball seat, reduces manufacturing cost, realizes sealed moreover easily, prevents that other leakages from causing waste and pollution. The ball head 14 of the present embodiment may be a sphere, a hemisphere, or a small number of hemispheres, and the ball head 14 of the present embodiment is designed as a hemisphere in order to be adapted to the sealing end 15 of the present embodiment for better adjustment, and meanwhile, in order to save material and manufacturing cost. The fixed connection between the bulb 14 and the gas distribution pipe 4 is not limited in this embodiment, and may be, for example, a welding manner.

As shown in fig. 1 and fig. 1a, there are two bulbs 14 and two air distribution pipes 4 in the present embodiment, and correspondingly, there are two opposite openings (the openings are blocked by the bulbs 14 and are not shown) also provided on the pipe wall of the sealed end 15, the two bulbs 14 are arranged in the sealed end 15 in parallel, the orifices of one end of the through holes 16 in the two bulbs 14 are opposite to the two openings one by one and respectively extend out of the corresponding openings, and the orifices of the other end of the two through holes 16 in the two bulbs 14 are opposite to each other and are both communicated with the air inlet pipe 11; the two air distribution pipes 4 are respectively connected to the two ball heads 14, and pipe openings of the air distribution pipes 4 are butted with the hole openings. Because the bulb 14 is fixedly connected with the air distribution pipe 4, and the bulb 14 and the ball seat can rotate relatively, the air distribution pipe 4 can be driven to follow up only by adjusting the position of the bulb 14 in the embodiment so as to adjust the parallelism of the air distribution pipe 4 relative to the wall surface of the external equipment, and therefore the problems that the vent pipe in the embodiment of the invention has large installation stress and even cannot be installed are solved. .

In some embodiments, with reference to fig. 1 and fig. 1a, the fastening assembly of the universal joint 1 of the present embodiment includes two clamping rings 13 respectively sleeved on the portions of the two ball heads 14 extending out of the sealing end 15, at least four bolts 6 passing through the two clamping rings 13, and two nuts 5 provided on each bolt 6 for screwing inward from the outer sides of the two clamping rings 13. The ball head 14 of the embodiment is also provided with a sealing element 12; in addition, a concave spherical surface attached to the ball head 14 is processed on the air inlet pipe 11, and the inner side surface of the clamping ring 13 is a concave spherical surface attached to the ball head 14. When the fastening assembly is fastened, the clamping ring 13 is tightly attached to the ball head 14, the clamping ring 13 is tightly attached to the sealing end 15, and the sealing end 15 is tightly attached to the ball head 14, so that sealing is achieved through the sealing element 12, and gas cannot escape from the universal joint 1 when equipment runs.

The universal adjustment process of the vent pipe according to the embodiment of the present invention is described below with reference to fig. 1 and 1 a:

when the fastening component is not fastened, because the bulb 14 is limited in the sealing end 15 and one side of the orifice with the through hole 16 extends out of the opening of the sealing end 15 and is fixedly connected with the air distribution pipe 4, the bulb 14 can be adjusted universally in the ball seat and drives the air distribution pipe 4 to follow up so as to adjust the parallelism of the air distribution pipe 4 relative to the wall surface of the external equipment; when the gas distribution pipe 4 rotates to be parallel to the wall surface of the external equipment, the nut 5 on the outer side of the clamping ring 13 is screwed inwards, the clamping ring 13 and the ball head 14, the clamping ring 13 and the sealing end 15 and the ball head 14 are tightly attached and relatively fixed, sealing is realized through the sealing piece 12, and gas is prevented from escaping from the universal joint 1 when the equipment runs.

Fig. 2 is a partial cross-sectional view of another embodiment of the universally adjustable vent pipe provided in the present application, and fig. 2a is a cross-sectional view taken along the direction B-B in fig. 2, as shown in fig. 2 and fig. 2a, this embodiment provides another universally adjustable vent pipe, wherein the ball seat of the universal joint 1 includes a left seat body and a right seat body, where the left seat body and the right seat body are sealing seats, that is, the ball seat includes a left sealing seat 17 and a right sealing seat 18, inner passages of the left sealing seat 17 and the right sealing seat 18 are buckled to form an accommodating cavity 19, and the ball head 14 is disposed in the accommodating cavity 19; at least one of the sides of the left sealing seat 17 and the right sealing seat 18 which are deviated from each other is connected with the air distribution pipe 4; the left sealing seat 17 and the right sealing seat 18 in the figure are both connected with a gas distribution pipe 4, the gas distribution pipe 4 is communicated with the accommodating cavity 19, and the orifice of the through hole 16 of the bulb 14 is communicated with the pipe orifice of the gas distribution pipe 4.

As shown in fig. 2 and 2a, the ball head 14 of the present embodiment is a sphere, the ball seat is divided into a left sealing seat 17 and a right sealing seat 18, and the inner passages of the left sealing seat 17 and the right sealing seat 18 have a diameter larger than the diameter of the ball head 14, so that the ball seat and the ball head 14 can rotate relatively. Because left side seal receptacle 17 and right side seal receptacle 18 all are connected with gas distribution pipe 4, only need adjust the position of seal receptacle in this embodiment, can drive gas distribution pipe 4 follow-up, in order to adjust gas distribution pipe 4 is relative the depth of parallelism of external device's wall realizes the universal regulation when the breather pipe is installed.

In some embodiments, with continuing reference to fig. 2 and 2a, the fastening assembly of the universal joint 1 of the present embodiment includes at least four bolts 6 passing through the outer edges of the left and right sealing seats 17 and 18 and two nuts 5 disposed on each of the bolts 6, wherein the nuts 5 are screwed inwards from the outer sides of the left and right sealing seats 17 and 18 to tightly press the ball 14 and the left and right sealing seats. The ball head 14 of the embodiment is also provided with a sealing element 12; in addition, the inner side surfaces of the channels in the left sealing seat 17 and the right sealing seat 18 are concave spherical surfaces attached to the ball head 14. After the fastening assembly is fastened, the sealing seat and the ball head 14, the sealing seat and the accommodating cavity 19 and the ball head 14 and the accommodating cavity 19 are tightly attached, and sealing is realized through the sealing piece 12, so that gas cannot escape from the universal joint 1 when the equipment runs.

It should be noted that the number of the air distribution pipes 4, the sealing seats and the fastening components in fig. 2 and 2a is only schematic. According to the actual requirements of the lines and the number of the vent pipes, the bulb 14 is used as the center, and if the number of the gas distribution pipes 4 needs to be increased, the number of the sealing seats and the number of the fastening components only need to be correspondingly increased; and if need reduce the quantity of gas distribution pipe 4, only need will deviate from the outer passageway of the seal receptacle of gas distribution pipe 4 one side and seal can, can not influence holding chamber 19, can carry out normal universal regulation to the breather pipe.

The universal adjustment process of the vent pipe according to the embodiment of the present invention is described below with reference to fig. 2 and 2 a:

when the fastening assembly is not fastened, because the inner channels of the left sealing seat 17 and the right sealing seat 18 are buckled to form the accommodating cavity 19, the bulb 14 is arranged in the accommodating cavity 19, the aperture of the inner channel of the left sealing seat 17 and the aperture of the inner channel of the right sealing seat 18 are larger than the diameter of the bulb 14, the left sealing seat 17 and the right sealing seat 18 can be universally adjusted relative to the bulb 14, and the air distribution pipe 4 can be driven to follow by adjusting the position of the ball seat so as to adjust the parallelism of the air distribution pipe 4 relative to the wall surface of the external equipment; when the air distribution pipe 4 rotates to be parallel to the wall surface of the external equipment, the nuts 5 on the outer sides of the left sealing seat 17 and the right sealing seat 18 are screwed inwards, the sealing seat and the ball head 14, the sealing seat and the containing cavity 19 and the ball head 14 and the containing cavity 19 are tightly attached and relatively fixed, and sealing is realized through the sealing piece 12, so that no air escapes from the universal joint 1 when the equipment runs.

Fig. 3 is a schematic structural diagram of a damping assembly 2 of a universally adjustable vent pipe provided in the present application, and referring to fig. 1 and fig. 2 in combination with fig. 3, it can be seen that, in order to solve the problem that the vent pipe is easily damaged due to vibration during use, the air distribution pipe 4 according to an embodiment of the present invention is further provided with the damping assembly 2, and the damping assembly 2 includes an elastic member 21, a connecting plate 22, a gasket 23, a clip 24, and a connecting member 25; wherein elastic component 21 passes through connecting plate 22 support press in on the external equipment to can be connected with external equipment's preweldment, gasket 23 is located connecting plate 22 deviates from one side of elastic component 21 and with the laminating of gas distribution pipe 4, 24 covers of clamp are located on the gas distribution pipe 4, two ends of clamp 24 support in on the gasket 23, connecting piece 25 wears to establish in proper order end, gasket 23, the connecting block of clamp 24, so that gas distribution pipe 4 with external equipment flexonics.

The elastic member 21 may be a metal spring, a rubber spring or any element capable of absorbing vibration and providing a buffer, and the type of the elastic member 21 is not limited. As shown in figure 3, a plurality of springs are arranged in parallel, one end of each spring is abutted to the connecting block, and the other end of each spring is abutted to the external equipment. The gasket 23 can be made of iron, stainless steel, other metals or metal-nonmetal composite materials, and the gasket 23 can be increased or decreased according to the universal adjustment condition of the vent pipe, so that the connection plate 22 is attached to the gas distribution pipe 4 more tightly.

It should be noted that the number of the shock absorbing modules 2 in fig. 1 and 2 is merely schematic. According to the length of gas distribution pipe 4 and to the actual demand of shock attenuation effect, can set up a plurality of damper 2 on the gas distribution pipe 4 to along gas distribution pipe 4 evenly distributed.

With continued reference to fig. 1 and fig. 2, in order to realize gas distribution of high-pressure gas, the gas distribution pipe 4 of the embodiment of the present invention is further provided with gas distribution holes 3, the gas distribution holes 3 are internally provided with connecting pipes 32, and the connecting pipes 32 are internally provided with ventilation pieces 31; one end of the connecting pipe 32 is welded to the gas distribution pipe 4, and the other end of the connecting pipe 32 is welded to the ventilation sheet 31. The ventilation sheet 31 is a sintered metal ventilation sheet, high-pressure gas can be guaranteed to enter the equipment from the gas distribution pipe 4 due to good gas permeability of sintered metal, but pulverized coal in the equipment cannot reversely enter the gas distribution pipe 4, and the problem that the ventilation pipe is damaged due to pulverized coal blockage is effectively avoided.

Fig. 4 is a schematic view of a usage state of the universally adjustable vent pipe according to the embodiment of the present invention. As shown in fig. 4, the external device is a powder conveying device, and has a tapered cavity and an air inlet 7, an inner surface of the tapered cavity forms a device wall surface 8, and with reference to fig. 1, fig. 2, and fig. 3, the universally adjustable air pipe provided in the embodiment of the present invention is disposed on the device wall, and the air inlet pipe 11 penetrates through the device wall surface 8 and is connected to the air inlet 7 of the powder conveying device. According to the embodiment of the invention, the ball head 14 and the ball seat are arranged, the gas distribution pipe 4 can be driven to follow up by utilizing the relative rotation between the ball head 14 and the ball seat, even if the perpendicularity deviation exists between the gas inlet 7 of the powder conveying equipment and the wall surface 8 of the equipment, the gas distribution pipe 4 can be driven to be adjusted in a universal way only by adjusting the ball head 14 or the ball seat in a universal way, the gas distribution pipe 4 is ensured to be parallel to the wall surface 8 of the equipment, and the generation of large installation. On the other hand, the embodiment of the invention absorbs the vibration generated by high-pressure gas entering the vent pipe when the equipment runs by arranging the damping component 2, thereby effectively reducing the vibration of the vent pipe and avoiding the damage of the vent pipe caused by the vibration.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.