阅读说明：本技术 一种高强防腐抗渗输液管道 (High-strength anti-corrosion anti-permeability infusion pipeline ) 是由 郭超 陆征然 李硕 于 2020-12-18 设计创作，主要内容包括：本发明公开一种高强防腐抗渗输液管道,包括：输液管道,封装装置和混凝土承口管；输液管道的一端设置有混凝土承口管,且输液管的另一端设置有封装装置；输液管道包括筛孔式钢筒和预应力钢丝层；筛孔式钢筒的一端设置有连接环；筛孔式钢筒的外侧开设有若干通孔；筛孔式钢筒的内壁设置有内层混凝土；筛孔式钢筒的外壁设置有外层混凝土；内层混凝土内壁设置有钢丝网骨架聚乙烯复合管；外层混凝土的外壁上设置有预应力钢丝层；预应力钢丝层外壁上设置有砂浆保护层；能够实现具有抗压强度高、防腐性能好的特点,有较长的使用寿命、较好的密闭性,尤其适用于长距离、大流量输液的重大市政管廊工程中。(The invention discloses a high-strength anti-corrosion anti-permeability infusion pipeline, which comprises: the device comprises a transfusion pipeline, a packaging device and a concrete socket pipe; one end of the infusion pipeline is provided with a concrete socket pipe, and the other end of the infusion pipe is provided with a packaging device; the infusion pipeline comprises a sieve mesh type steel cylinder and a prestressed wire layer; one end of the sieve-hole type steel cylinder is provided with a connecting ring; a plurality of through holes are formed in the outer side of the sieve-hole type steel cylinder; the inner wall of the sieve-hole type steel cylinder is provided with inner layer concrete; the outer wall of the sieve-hole type steel cylinder is provided with outer concrete; the inner wall of the inner layer concrete is provided with a steel wire mesh framework polyethylene composite pipe; a prestressed wire layer is arranged on the outer wall of the outer layer concrete; a mortar protective layer is arranged on the outer wall of the prestressed wire layer; the novel plastic infusion support has the characteristics of high compressive strength and good corrosion resistance, has long service life and good tightness, and is particularly suitable for major municipal pipe gallery engineering of long-distance and large-flow infusion.)

1. A high-strength anti-corrosion anti-permeability infusion pipeline is characterized by comprising: the device comprises a transfusion pipeline, a packaging device and a concrete socket pipe; one end of the infusion pipe is provided with the concrete socket pipe, and the other end of the infusion pipe is provided with the packaging device;

the infusion pipeline comprises a sieve mesh type steel cylinder (5) and a prestressed steel wire layer (3); one end of the sieve-mesh steel cylinder (5) is provided with a connecting ring (12); a plurality of through holes are formed in the outer side of the sieve mesh type steel cylinder (5); the inner wall of the sieve mesh type steel cylinder (5) is provided with inner layer concrete (6); the outer layer concrete (4) is arranged on the outer wall of the sieve mesh type steel cylinder (5); a steel wire mesh framework polyethylene composite pipe (7) is arranged on the inner wall of the inner layer concrete (6); the outer wall of the outer layer concrete (4) is provided with the prestressed steel wire layer (3); and a mortar protective layer (2) is arranged on the outer wall of the prestressed steel wire layer (3).

2. The high-strength anti-corrosion and anti-permeability infusion pipeline as claimed in claim 1, wherein: one end of the concrete bell pipe is fixedly connected with the outer layer concrete (4); the outer wall of the connecting ring (12) is fixedly connected with the inner pipe wall of the concrete bell pipe; and the outer wall of the mortar protective layer (2) and the outer pipe wall of the concrete socket pipe are provided with graphene anticorrosive coatings (1).

3. The high-strength anti-corrosion and anti-permeability infusion pipeline as claimed in claim 1, wherein: the packaging device comprises a rubber sealing ring (8), a baffle plate (9), a probe tube (11) and a bracket (10); the outer layer concrete (4), the sieve mesh type steel cylinder (5), the inner layer concrete (6) and the steel wire mesh framework polyethylene composite pipe (7) at the other end of the infusion device extend outwards to form an extension part; a plurality of rubber sealing rings (8) are sleeved on the extending part; a plurality of brackets (10) are circumferentially arranged on the end surface of the other end of the infusion pipeline; the other end of the infusion pipeline is provided with the baffle (9); one end of the probe tube (11) penetrates through the baffle (9) and the support (10) in sequence.

4. The high-strength anti-corrosion and anti-permeability infusion pipeline as claimed in claim 1, wherein: and a silane coupling agent coating is arranged on the outer wall of the steel wire mesh framework polyethylene composite pipe (7).

5. The high-strength anti-corrosion and anti-permeability infusion pipeline as claimed in claim 3, wherein: the baffle (9) comprises a plurality of sub baffles; the end face of the other end of the infusion pipeline is circumferentially provided with a plurality of sub-baffles; mounting holes are formed in the side faces of the sub-baffles; one end of the probe tube (11) penetrates through the mounting hole.

6. The high-strength anti-corrosion and anti-permeability infusion pipeline as claimed in claim 1, wherein: the outer wall of the sieve mesh type steel cylinder (5) is provided with a plurality of through holes.

7. A method for manufacturing a high-strength anti-corrosion and anti-permeability infusion pipeline based on any one of claims 1 to 6, which is characterized by comprising the following steps:

firstly, welding the connecting ring (12) with one end of the sieve-mesh steel cylinder (5), and forming a through hole on the outer wall of the sieve-mesh steel cylinder (5);

step two, respectively hoisting the mesh type steel cylinder (5) and the steel wire mesh framework polyethylene composite pipe (7) in the step one into a mold, connecting the mesh type steel cylinder (5) by using a conducting wire and leading out, pouring the inner layer concrete (6) and the outer layer concrete (4), and compacting the concrete through high-frequency strong vibration to fasten the inner layer concrete (6), the steel wire mesh framework polyethylene composite pipe (7), the mesh type steel cylinder (5) and the outer layer concrete (4) into shape; fixedly connecting one end of the outer layer concrete (4) with the concrete socket pipe;

step three, performing steam curing on the inner layer concrete (6) and the outer layer concrete (4), demolding, winding the prestressed steel wire layer (3), connecting the prestressed steel wires by using electric wires, leading out the prestressed steel wires to the outer side of the pipeline, building a mold, and pouring the mortar protective layer (2);

step three, after the mortar protection layer (2) is maintained and demoulded, painting the graphene anticorrosive coating (1) on the outer wall of the mortar protection layer (2);

painting the graphene anticorrosive coating (1) on the outer pipe wall of the concrete socket pipe;

sawing the graphene anticorrosive coating (1), the mortar protective layer (2) and the prestressed wire layer (3) at the other end of the infusion pipeline by using a grinding wheel, polishing the exposed outer concrete (4), and sleeving the exposed end of the outer concrete (4) with the rubber sealing ring (8);

and step six, sealing the bell and spigot by the baffle (9) and carrying out bell and spigot butt joint.

And seventhly, after the infusion pipeline is fixed, connecting the lead wires connected with the sieve-mesh steel cylinder (5) and the prestressed steel wires with the magnesium block respectively to make the cathode protection of the sacrificial anode.

8. The manufacturing method of the high-strength anti-corrosion anti-permeability infusion pipeline according to claim 7, characterized in that: and in the third step, the inner layer concrete (6) and the outer layer concrete (4) are subjected to steam curing, and after demolding, a plurality of layers of circumferentially and longitudinally combined prestressed steel wires are wound on the outer wall of the outer layer concrete (4) to form the prestressed steel wire layer (3).

9. The manufacturing method of the high-strength anti-corrosion anti-permeability infusion pipeline according to claim 7, characterized in that: in the sixth step, the rubber sealing ring (8) and the joint of the socket and the spigot are fully coated with sealing waterproof glue; the steel wire mesh framework polyethylene composite pipe (7) at the joint of the bell and spigot is subjected to electric hot melt connection and subjected to waterproof test, the other end of the infusion pipeline is provided with the baffle (9), the support (10) and the probe pipe (11), the tail ends of the probe pipes (11) are connected with sub pipelines for conveying cement mortar, the sub pipelines are connected with a main pipeline, a mortar pump conveys the cement mortar to the main pipeline through a power conveying pipe, the main pipeline is then respectively conveyed to the probe pipes (11) connected with the sub pipelines, the cement mortar is injected into the bell and spigot through the probe pipes (11), and in the process of pouring the mortar, the probe pipes (11) are gradually extracted and finally completely separated. And after the mortar is solidified, removing the baffle (9) and the bracket (10), and coating an asphalt waterproof layer on the outer side.

10. The manufacturing method of the high-strength anti-corrosion anti-permeability infusion pipeline according to claim 7, characterized in that: and in the seventh step, the magnesium blocks are replaced at proper time according to the sizes of the magnesium blocks.

Technical Field

The invention relates to the technical field of infusion pipelines, in particular to a high-strength anti-corrosion anti-permeability infusion pipeline.

Background

In recent years, with the rapid development of prestressed concrete cylinder pipes (hereinafter referred to as PCCP) in China, the prestressed concrete cylinder pipes are composite pipes widely applied to various large water delivery projects, have the characteristics of good tightness, corrosion resistance, ultra-large caliber and suitability for long-distance water and oil delivery, and have wider application prospects.

With the rapid development of economy in China, the application of the PCCP can be expected to obtain a further improved space, but as the PCCP pipeline buried in the soil environment, the PCCP can be subjected to long-time scouring failure in a protective layer and the interior of the PCCP pipeline along with the prolonging of service time, so that the corrosion failure of a steel wire and a steel cylinder can be caused, the phenomena of perforation leakage and even pipe explosion can be caused, and hidden dangers can be caused to the safe operation of a pipeline system.

Disclosure of Invention

The invention aims to provide a high-strength anti-corrosion and anti-permeability infusion pipeline, which solves the problems in the prior art, has the characteristics of high compressive strength and good anti-corrosion performance, has longer service life and better tightness, and is particularly suitable for major municipal pipe gallery engineering for long-distance and large-flow infusion.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a high-strength anti-corrosion anti-permeability infusion pipeline, which comprises: the device comprises a transfusion pipeline, a packaging device and a concrete socket pipe; one end of the infusion pipe is provided with the concrete socket pipe, and the other end of the infusion pipe is provided with the packaging device;

the infusion pipeline comprises a sieve mesh type steel cylinder and a prestressed wire layer; one end of the sieve-hole type steel cylinder is provided with a connecting ring; a plurality of through holes are formed in the outer side of the sieve-hole type steel cylinder; the inner wall of the sieve-hole type steel cylinder is provided with inner-layer concrete; the outer wall of the sieve-hole type steel cylinder is provided with outer concrete; the inner wall of the inner layer concrete is provided with a steel wire mesh framework polyethylene composite pipe; the outer wall of the outer layer concrete is provided with the prestressed steel wire layer; and a mortar protective layer is arranged on the outer wall of the prestressed steel wire layer.

Preferably, the epoxy resin coating added with the silane coupling agent is used as an interface adhesive between the structures of the pipelines, so that the adhesive strength of the adhesive can be obviously improved, and the durability and the damp-heat aging resistance of the adhesive can be improved.

One end of the concrete bell pipe is fixedly connected with the outer layer concrete; the outer wall of the connecting ring is fixedly connected with the inner pipe wall of the concrete bell pipe; and graphene anticorrosive coatings are arranged on the outer wall of the mortar protective layer and the outer pipe wall of the concrete bell pipe.

Preferably, a sieve mesh type steel cylinder is adopted, and the steel cylinder structure is formed by opening circular holes in a partial section of the surface of the cylinder wall at intervals. In the process of pouring concrete, the concrete at the inner side and the concrete at the outer side can be mutually fused through the round holes on the surface of the cylinder wall, so that the connection performance between the steel and the concrete is effectively improved, and the shearing resistance of the structure is enhanced.

The packaging device comprises a rubber sealing ring, a baffle plate, a probe tube and a bracket; the outer layer concrete, the sieve mesh type steel cylinder, the inner layer concrete and the steel wire mesh framework polyethylene composite pipe at the other end of the infusion device extend outwards to form an extension part; a plurality of rubber sealing rings are sleeved on the extending part; the end face of the other end of the infusion pipeline is circumferentially provided with a plurality of brackets; the other end of the infusion pipeline is provided with the baffle; one end of the probe pipe penetrates through the baffle and the support in sequence.

Preferably, the circumferential and radial prestressed steel wires are wound on the outer concrete layer, and a mortar protective layer is laid on the outer side of the prestressed steel wires, so that the corrosion resistance of the prestressed steel wires is improved. And brushing a graphene anticorrosive coating on the outer side of the mortar protective layer to isolate the invasion of chloride ions in soil. And the graphene anti-corrosion coating has higher strength and can bear the abrasion of an external soil body to the infusion pipeline.

And a silane coupling agent coating is arranged on the outer wall of the steel wire mesh framework polyethylene composite pipe.

The baffle comprises a plurality of sub-baffles; the end face of the other end of the infusion pipeline is circumferentially provided with a plurality of sub-baffles; mounting holes are formed in the side faces of the sub-baffles; one end of the probe tube penetrates through the mounting hole.

The outer wall of the sieve-hole type steel cylinder is provided with a plurality of through holes.

Preferably, the wire is respectively connected with the sieve-hole steel cylinder and the prestressed steel wire, penetrates through the protective layer and is led out, and after the pavement is finished, the wire is connected with the magnesium block to serve as a protector for the sieve-hole steel cylinder and the prestressed steel wire.

The manufacturing method based on the high-strength anti-corrosion anti-permeability infusion pipeline comprises the following steps:

step one, welding the connecting ring with one end of the sieve-mesh steel cylinder, and forming a through hole in the outer wall of the sieve-mesh steel cylinder;

step two, respectively hoisting the mesh type steel cylinder and the steel wire mesh framework polyethylene composite pipe in the step one into a mold, connecting the mesh type steel cylinder by using a conducting wire and leading out, pouring the inner layer concrete and the outer layer concrete, and compacting the concrete through high-frequency strong vibration to fasten and form the inner layer concrete, the steel wire mesh framework polyethylene composite pipe, the mesh type steel cylinder and the outer layer concrete; fixedly connecting one end of the outer layer concrete with the concrete socket pipe;

step three, performing steam curing on the inner layer concrete and the outer layer concrete, demolding, winding the prestressed steel wire layer, connecting the prestressed steel wires by using electric wires, leading out the prestressed steel wires to the outer side of the pipeline, building a mold, and pouring the mortar protective layer;

the connection of the steel wire mesh framework polyethylene composite pipe adopts electric hot melt connection, and an electric heating wire embedded in the inner surface of the steel wire mesh framework polyethylene composite pipe is electrified to heat the steel wire mesh framework polyethylene composite pipe; firstly, melting the inner surface of the steel wire mesh framework polyethylene composite pipe to generate a melt, melting and expanding and filling the gap of the pipe fitting until the outer surface of the pipe also generates the melt, mutually melting the two melts together, and after cooling and forming, tightly connecting the pipe fitting and the pipe fitting into a whole;

step three, after the mortar protective layer is maintained and demoulded, painting the graphene anticorrosive coating on the outer wall of the mortar protective layer;

painting the graphene anticorrosive coating on the outer pipe wall of the concrete socket pipe;

sawing the graphene anticorrosive coating, the mortar protective layer and the prestressed wire layer at the other end of the infusion pipeline by using a grinding wheel, polishing the exposed outer concrete layer, and sleeving the rubber sealing ring at the exposed end of the outer concrete layer;

and step six, sealing the bell and spigot by the baffle plate, and carrying out bell and spigot butt joint.

And seventhly, after the infusion pipeline is fixed, connecting the wires connected with the sieve-mesh steel cylinder and the prestressed steel wires with the magnesium block respectively to make the cathode protection of the sacrificial anode.

And in the third step, the inner concrete layer and the outer concrete layer are subjected to steam curing, and after demolding, a plurality of layers of circumferentially and longitudinally combined prestressed wires are wound on the outer wall of the outer concrete layer to form the prestressed wire layer.

In the sixth step, the rubber sealing ring and the joint of the socket and the spigot are fully coated with sealing waterproof glue; the steel wire mesh framework polyethylene composite pipe at the joint of the bell and spigot is subjected to electric hot melt connection and waterproof test, the other end of the infusion pipeline is provided with the baffle, the support and the probe pipe, the tail ends of the probe pipes are connected with sub-pipelines used for conveying cement mortar, the sub-pipelines are connected with a main pipeline, a mortar pump conveys the cement mortar to the main pipeline through a power conveying pipe, and then the main pipeline is respectively conveyed to the probe pipes connected with the sub-pipelines, the cement mortar is injected into the bell and spigot through the probe pipes, and in the process of pouring the mortar, the probe pipes are gradually taken out and finally completely separated. And after the mortar is solidified, removing the baffle and the bracket, and coating an asphalt waterproof layer on the outer side.

And in the seventh step, the magnesium blocks are replaced at proper time according to the sizes of the magnesium blocks.

The invention discloses the following technical effects: the novel high-pressure-resistant anti-corrosion plastic has the characteristics of high compressive strength and good anti-corrosion performance, has longer service life and better tightness, and is particularly suitable for major municipal pipe gallery engineering of long-distance and large-flow infusion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the infusion tube of the present invention.

FIG. 3 is a schematic view of the infusion tubing connection of the present invention.

Fig. 4 is a schematic structural diagram of the mesh type steel cylinder of the present invention.

FIG. 5 is a schematic view of the structure of the socket pipe of the present invention.

The anti-corrosion device comprises a graphene anti-corrosion coating 1, a mortar protective layer 2, a prestressed steel wire layer 4, outer concrete, a sieve mesh type steel cylinder 5, inner concrete 6, a steel wire mesh framework polyethylene composite pipe 7, a rubber sealing ring 8, a baffle 9, a support 10, a probe pipe 11 and a connecting ring 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides a high-strength anti-corrosion anti-permeability infusion pipeline, which comprises: the device comprises a transfusion pipeline, a packaging device and a concrete socket pipe; one end of the infusion pipeline is provided with a concrete socket pipe, and the other end of the infusion pipe is provided with a packaging device;

the infusion pipeline comprises a sieve mesh type steel cylinder 5 and a prestressed wire layer 3; one end of the sieve mesh type steel cylinder 5 is provided with a connecting ring 12; a plurality of through holes are formed in the outer side of the sieve mesh type steel cylinder 5; the inner wall of the sieve mesh type steel cylinder 5 is provided with inner layer concrete 6; the outer layer concrete 4 is arranged on the outer wall of the sieve mesh type steel cylinder 5; the inner wall of the inner layer concrete 6 is provided with a steel wire mesh framework polyethylene composite pipe 7; the outer wall of the outer layer concrete 4 is provided with a prestressed wire layer 3; and a mortar protective layer 2 is arranged on the outer wall of the prestressed steel wire layer 3.

One end of the concrete bell pipe is fixedly connected with the outer layer concrete 4; the outer wall of the connecting ring 12 is fixedly connected with the inner pipe wall of the concrete bell pipe; and the outer wall of the mortar protective layer 2 and the outer pipe wall of the concrete bell pipe are provided with a graphene anticorrosive coating 1.

The packaging device comprises a rubber sealing ring 8, a baffle 9, a probe tube 11 and a bracket 10; the outer layer concrete 4, the sieve mesh type steel cylinder 5, the inner layer concrete 6 and the steel wire mesh framework polyethylene composite pipe 7 at the other end of the infusion device extend outwards to form an extension part; a plurality of rubber sealing rings 8 are sleeved on the extending part; a plurality of brackets 10 are circumferentially arranged on the end surface of the other end of the infusion pipeline; the other end of the infusion pipeline is provided with a baffle plate 9; one end of the probe tube 11 penetrates the baffle 9 and the bracket 10 in sequence.

And a silane coupling agent coating is arranged on the outer wall of the steel wire mesh framework polyethylene composite pipe 7.

The baffle 9 comprises a plurality of sub-baffles; a plurality of sub-baffles are circumferentially arranged on the end surface of the other end of the infusion pipeline; mounting holes are formed in the side faces of the sub-baffles; one end of the probe tube 11 passes through the mounting hole.

The outer wall of the sieve mesh type steel cylinder 5 is provided with a plurality of through holes.

The manufacturing method based on the high-strength anti-corrosion anti-permeability infusion pipeline comprises the following steps:

firstly, welding a connecting ring 12 with one end of a sieve-mesh steel cylinder 5, and forming a through hole on the outer wall of the sieve-mesh steel cylinder 5;

step two, respectively hoisting the sieve mesh type steel cylinder 5 and the steel wire mesh framework polyethylene composite pipe 7 in the step one into a mold, connecting the sieve mesh type steel cylinder 5 by using a conducting wire and leading out, pouring the inner layer concrete 6 and the outer layer concrete 4, and compacting the concrete through high-frequency strong vibration to fasten and form the inner layer concrete 6, the steel wire mesh framework polyethylene composite pipe 7, the sieve mesh type steel cylinder 5 and the outer layer concrete 4; fixedly connecting one end of the outer layer concrete 4 with a concrete socket pipe;

step three, performing steam curing on the inner layer concrete 6 and the outer layer concrete 4, demolding, winding the prestressed steel wire layer 3, connecting the prestressed steel wires by using electric wires, leading out the prestressed steel wires to the outer side of the pipeline, building a mold, and pouring the mortar protective layer 2;

step three, after the mortar protection layer 2 is maintained and demoulded, painting a graphene anticorrosive coating 1 on the outer wall of the mortar protection layer 2;

painting a graphene anticorrosive coating 1 on the outer pipe wall of the concrete bell pipe;

sawing the graphene anticorrosive coating 1, the mortar protective layer 2 and the prestressed wire layer 3 at the other end of the infusion pipeline by using a grinding wheel, polishing the exposed outer concrete layer 4, and sleeving a rubber sealing ring 8 on the exposed end of the outer concrete layer 4;

and step six, closing the bell and spigot by the baffle 9, and butting the bell and spigot.

And seventhly, after the infusion pipeline is fixed, connecting the lead wires connected with the sieve-mesh steel cylinder 5 and the prestressed steel wires with the magnesium block respectively to make the cathode protection of the sacrificial anode.

In the third step, the inner layer concrete 6 and the outer layer concrete 4 are subjected to steam curing, and after demolding, a plurality of layers of circumferentially and longitudinally combined prestressed wires are wound on the outer wall of the outer layer concrete 4 to form the prestressed wire layer 3.

In the sixth step, the rubber sealing ring 8 and the joint of the socket and the spigot are fully coated with waterproof sealing glue; carry out the electrothermal welding to the compound pipe 7 of wire net skeleton polyethylene of bell and spigot handing-over department and connect and carry out waterproof test, other end installation baffle 9 at infusion pipeline, support 10 and probe pipe 11, the end of a plurality of probe pipes 11 all is connected with the subduct that is used for carrying cement mortar, a plurality of subduct connections have the trunk line, the mortar pump passes through power transmission pipe with cement mortar and carries to the trunk line, then carry respectively to the probe pipe 11 with subduct connection by the trunk line, cement mortar pours the in-process of mortar into the bell and spigot through a plurality of probe pipes 11, probe pipe 11 takes out gradually, break away from at last completely. After the mortar is solidified, the baffle 9 and the bracket 10 are removed, and an asphalt waterproof layer is coated on the outer side.

And in the seventh step, the magnesium blocks are replaced at proper time according to the sizes of the magnesium blocks.

The invention discloses the following technical effects: the novel high-pressure-resistant anti-corrosion plastic has the characteristics of high compressive strength and good anti-corrosion performance, has longer service life and better tightness, and is particularly suitable for major municipal pipe gallery engineering of long-distance and large-flow infusion.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.