阅读说明：本技术 一种管道接头结构及饮用水净水装置 (Pipeline joint structure and drinking water purifier ) 是由 张锋 于 2020-08-18 设计创作，主要内容包括：本发明涉及一种管道接头结构,该管道接头结构,包括接头、密封圈、连接套、卡套和压套,本申请通过卡套与连接套配合实现管道与卡套及连接套之间的初步固定,通过连接套与接头的螺纹连接中,使卡套压紧压套,从而一方面实现压套压紧密封圈的高效密封,另一方面实现压套压紧卡套,使卡套咬紧管道,实现管道与接头之间的稳固连接,如此可避免因管道活动影响两者密封的风险,最终实现管道与接头之间的稳定高效密封,且各零部件结构简单,不仅加工成本大大降低,也有利于快速准确拆装。(The invention relates to a pipeline joint structure which comprises a joint, a sealing ring, a connecting sleeve, a clamping sleeve and a pressing sleeve, wherein the clamping sleeve is matched with the connecting sleeve to realize primary fixing among a pipeline, the clamping sleeve and the connecting sleeve, and the clamping sleeve is pressed tightly in threaded connection of the connecting sleeve and the joint, so that the high-efficiency sealing of the sealing ring pressed by the pressing sleeve is realized on one hand, the clamping sleeve is pressed tightly by the pressing sleeve on the other hand, the clamping sleeve bites the pipeline to realize stable connection between the pipeline and the joint, the risk that the pipeline and the joint are sealed due to the influence of pipeline movement is avoided, the stable and high-efficiency sealing between the pipeline and the joint is finally realized, and each part has a simple structure, the processing cost is greatly reduced, and the quick and.)

1. A pipe joint structure, comprising:

the connector is provided with an interface, and a first clamping table is formed in the interface;

the sealing ring is arranged on the first clamping table;

the connecting sleeve is internally provided with a first cavity section, a second cavity section and a third cavity section along the axial direction of the connecting sleeve in sequence, the diameter of the first cavity section is smaller than that of the third cavity section, and the second cavity section is a slope section;

the clamping sleeve is inserted into the first cavity section and the second cavity section of the connecting sleeve, one end of the clamping sleeve is provided with an expandable elastic clamping jaw, the inner side of the end part of the elastic clamping jaw is provided with an occlusion part, the outer side of the end part of the elastic clamping jaw is provided with a boss part, the elastic clamping jaw can be expanded to enable the clamping sleeve to have a first state that the boss part is abutted against the second cavity section, and the boss part can slide on the second cavity section to adjust the size of the inner diameter defined by the elastic clamping jaw;

and the end, far away from the clamping sleeve, of the connecting sleeve is connected onto the interface in a threaded manner, so that when the clamping sleeve is in a first state, the connecting sleeve can extrude the sealing ring onto the first clamping table through the pressing sleeve abutted against the end part of the elastic clamping jaw, and the inner diameter of the pressing sleeve is not smaller than that of the clamping sleeve.

2. The pipe joint structure of claim 1, wherein a second clamping table is provided in the connecting sleeve between the first cavity section and the second cavity section, and the clamping sleeve has a second state in which the boss portion abuts against the second clamping table.

3. The pipe coupling structure of claim 2, wherein an end of the ferrule away from the resilient claw extends out of the first cavity, and the outer side of the end has a limiting portion extending toward the outer periphery, and the outer diameter of the limiting portion is larger than the inner diameter of the first cavity.

4. The pipe joint structure of claim 2, wherein the press sleeve forms an outwardly inclined circular table surface adjacent to the inner side of the end of the resilient jaw, such that when the ferrule is in the first state, the outer end side of the boss portion can abut against the circular table surface of the press sleeve, and the press sleeve can press the resilient jaw of the ferrule, so that the ferrule has a third state in which the boss portion is disengaged from the second jaw.

5. The pipe coupling structure of claim 1, wherein a third engagement structure is further formed in the interface, and the third engagement structure and the first engagement structure are sequentially disposed in an ascending order from outside the interface to inside the interface;

first threads are arranged in the connector of the side portion of the third clamping table, and second threads which are connected with the first threads in a matched mode are arranged on the outer side of the connecting sleeve corresponding to the third cavity section.

6. The pipe coupling structure of claim 1, wherein a fourth engagement structure is further formed in the interface, and the first engagement structure and the fourth engagement structure are sequentially disposed in a progression from the outside of the interface to the inside of the interface;

the inner diameter of the sealing ring is larger than that of the fourth clamping table.

7. The piping joint structure of claim 1, wherein the first cavity segment is further provided with a handle portion outside the corresponding connecting sleeve.

8. The piping joint structure of claim 1, wherein a stainless steel plate is embedded inside the elastic claw, and a portion of the stainless steel plate extending out of the elastic claw forms an engagement portion.

9. A drinking water purifying device is characterized by comprising:

a pipeline;

a water purification bottle head, wherein a liquid channel is arranged in the water purification bottle head, at least one end of the water purification bottle head is provided with a pipe joint structure according to any one of claims 1-8, so as to connect a pipe to the water purification bottle head in a sealing way, and the pipe is communicated with the liquid channel.

10. The drinking water purification apparatus of claim 9, wherein the plurality of water purification bottle heads are integrally formed as one-piece bottle heads.

Technical Field

The invention relates to the field of joints, in particular to a pipeline joint structure and a drinking water purifying device.

Background

In the process of conveying gas or liquid through a pipeline, a joint structure is usually adopted for connection between the pipeline and the pipeline or other structures, the traditional joint structure adopts a loose joint, the pipeline is inserted into the loose joint, and the film and the glue are wound at the joint to realize sealing, the sealing effect is poor along with the aging of the glue, the disassembly is troublesome, and the waste of the film and the glue is caused.

The existing joint structure adopts quick connection, for example: the quick connector between the washing machine and the water pipe has the advantages that although the quick connector has a sealing effect, the disassembly and the assembly require strength, the operation difficulty is high, the structure of the quick connector is particularly complex, the actual processing difficulty is relatively high, and the cost is high; in addition, some quick connectors are provided with sealing rings and clamping jaws, and the pipeline is inserted and pulled to realize sealing connection, but the sealing effect and the sealing stability are poor, so that the pipeline and the connecting connector are easily subjected to relative displacement along with fluid transportation to reduce the sealing effect of the sealing rings.

Disclosure of Invention

The present invention has been made to overcome the above-mentioned deficiencies in the prior art, and it is an object of the present invention to provide a pipe joint structure that at least solves or alleviates one or more of the above-mentioned problems, or at least provides a useful alternative.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a pipe joint construction comprising:

the connector is provided with an interface, and a first clamping table is formed in the interface;

the sealing ring is arranged on the first clamping table;

the connecting sleeve is internally provided with a first cavity section, a second cavity section and a third cavity section along the axial direction of the connecting sleeve in sequence, the diameter of the first cavity section is smaller than that of the third cavity section, and the second cavity section is a slope section;

the clamping sleeve is inserted into the first cavity section and the second cavity section of the connecting sleeve, one end of the clamping sleeve is provided with an expandable elastic clamping jaw, the inner side of the end part of the elastic clamping jaw is provided with an occlusion part, the outer side of the end part of the elastic clamping jaw is provided with a boss part, the elastic clamping jaw can be expanded to enable the clamping sleeve to have a first state that the boss part is abutted against the second cavity section, and the boss part can slide on the second cavity section to adjust the size of the inner diameter defined by the elastic clamping jaw;

and the end, far away from the clamping sleeve, of the connecting sleeve is connected onto the interface in a threaded manner, so that when the clamping sleeve is in a first state, the connecting sleeve can extrude the sealing ring onto the first clamping table through the pressing sleeve abutted against the end part of the elastic clamping jaw, and the inner diameter of the pressing sleeve is not smaller than that of the clamping sleeve.

The connector structure is used for connecting a pipeline and a connector of the connector in a sealing mode, specifically, the clamping sleeve is inserted into the connecting sleeve, the pipeline penetrates into the clamping sleeve to open the elastic clamping jaws of the clamping sleeve, and the pipeline is clamped by the clamping parts; then, the pipeline is pulled from the third cavity section to the first cavity section until the boss part of the elastic clamping jaw is tightly abutted against the second cavity section, so that the pipeline is clamped by the occlusion part; later assemble sealing washer and pressure cover in proper order on first ka tai, stretch into the pipeline tip again to the sealing washer with press the cover in, realize pressing cover and elasticity jack catch tip butt through adapter sleeve and interface screw-thread fit, so not only accomplish pipeline and joint fastening connection, and realize better sealing connection between pipeline and the joint, both combine to realize sealed stable. In addition, each part of the joint structure has simple structure, low processing cost and quick and accurate disassembly and assembly.

In one example, a second clamping table is further arranged in the connecting sleeve between the first cavity section and the second cavity section, and the clamping sleeve has a second state that the boss part abuts against the second clamping table. The second clamping table can prevent the pipeline from taking the clamping sleeve to be separated from the end part of the first cavity section of the connecting sleeve when the pipeline and the connecting sleeve are in strong relative displacement, and the clamping sleeve in the second state can prevent the pipeline from being easily separated from the end part of the first cavity section of the connecting sleeve without external operation.

In one example, one end of the ferrule, which is far away from the elastic claw, extends out of the first cavity section, and the outer side of the end part is provided with a limiting part extending towards the periphery, and the outer diameter of the limiting part is larger than the inner diameter of the first cavity section. The setting of spacing portion can make cutting ferrule and adapter sleeve equipment quick accurate, and the equipment back, and the cutting ferrule can not be taken off from the adapter sleeve easily to be favorable to the pipeline to insert the cutting ferrule from first chamber section tip, when the pipeline inserts from this end, relatively light, the application of force is easier, inserts more fast.

On above-mentioned basis, the cutting ferrule is difficult to take off from the connecting sleeve under the exogenic action, for this structure below the design, specifically, press the cover to be close to the inboard round table face that leans out that forms of tip of elasticity jack catch to when the cutting ferrule is in first state, the outer end side of boss portion can with the round table face butt of pressing the cover, and press the cover can extrude the elasticity jack catch of cutting ferrule, make the cutting ferrule have the third state that boss portion breaks away from the second ka tai. So can not use when needing to change at the cutting ferrule, can realize elasticity jack catch adduction through pressing the cover, make the cutting ferrule reach the third state, later can follow the tip of the first chamber section of adapter sleeve and pull out the cutting ferrule easily.

In one example, a third clamping table is further formed in the interface, and the third clamping table and the first clamping table are sequentially arranged in an ascending manner from the outside of the interface to the inside of the interface; first threads are arranged in the connector of the side portion of the third clamping table, and second threads which are connected with the first threads in a matched mode are arranged on the outer side of the connecting sleeve corresponding to the third cavity section. The third clamping table can limit the connecting depth of the connecting sleeve, and then the connecting accuracy is controlled.

In one example, a fourth clamping table is further formed in the interface, and the first clamping table and the fourth clamping table are sequentially arranged from the outside of the interface to the inside of the interface in a progressive manner; the inner diameter of the sealing ring is larger than that of the fourth clamping table. The setting of fourth ka tai is in order to restrict the degree of depth that the pipeline stretched into to after firm the pipe connection, avoid making the pipeline continue to insert in the interface under the exogenic action, cause the damage with pipeline complex interlock portion easily. In one example, a handheld portion is further arranged on the outer side of the connecting sleeve corresponding to the first cavity section, so that the connecting sleeve and the joint can be conveniently and quickly assembled, and for the stability of the handheld portion, a fixing ring is further arranged on the outer side of the connecting sleeve between the first cavity section and the third cavity section, and the handheld portion is connected with the fixing ring.

In one example, a stainless steel sheet is embedded in the inner side of the elastic claw, and a part of the stainless steel sheet extending out of the elastic claw forms an occlusion part. The stainless steel material is adopted, the service life is long, and the cost is saved.

In one example, the drinking water purifying device comprises a pipeline and a water purifying bottle head, wherein a liquid channel is arranged in the water purifying bottle head, the water purifying bottle head is provided with the pipeline joint structure at least at one end so as to connect the pipeline to the water purifying bottle head in a sealing mode, and the pipeline is communicated with the liquid channel.

In one example, a plurality of purifier bottle heads are integrally formed into a conjoined bottle head.

The invention adopts the structure, and has the advantages that:

1. the pipeline joint structure is simple in structure; through the mutual matching among the parts of the joint, the connecting sleeve, the clamping sleeve and the pressing sleeve, the quick, accurate, high-stability and high-sealing connection between the pipeline and the joint is realized. Specifically, the method comprises the following steps:

(1) realize preliminary fixed between pipeline and cutting ferrule and the adapter sleeve through cutting ferrule and adapter sleeve cooperation, in being connected through adapter sleeve and joint, make the cutting ferrule compress tightly the pressure cover to realize pressing the high-efficient of cover compression sealing washer on the one hand and seal, on the other hand realizes pressing the cover and compresses tightly the cutting ferrule, makes the cutting ferrule bite tight pipeline, realizes the firm connection between pipeline and the joint, so can avoid influencing both sealed risks because of pipeline activity, finally realize the stable high-efficient between pipeline and the joint and seal.

(2) Each part structure is simple relatively, and processing is convenient, and then can control processing low cost.

(3) The structure can realize accurate, quick and sealed assembly at one time, is convenient to disassemble, and greatly saves the assembling and disassembling time.

2. This application pipe joint structure, the setting of first ka tai and spacing portion, realization cutting ferrule and the accurate equipment of adapter sleeve that can be better, it is specific, first ka tai can avoid the cutting ferrule to deviate from the adapter sleeve from first chamber section tip along with under the powerful motion of pipeline, spacing portion can make things convenient for the pipeline not pass through when inserting from first chamber section tip and influence the assembly relation between cutting ferrule and the adapter sleeve. The clamping sleeve is beneficial to realizing quick and accurate assembly and realizing stable connection among the pipeline, the clamping sleeve and the connecting sleeve.

3. This application pipe joint structure presses the cooperation setting between cover, cutting ferrule and the adapter sleeve, can realize taking off fast of cutting ferrule, conveniently changes spare part.

Drawings

FIG. 1 is a schematic view of a partial cross-sectional structure of a pipeline according to an embodiment of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

fig. 3 is a schematic structural view of the connecting sleeve in fig. 1;

FIG. 4 is a schematic partial cross-sectional view of a ferrule in a second state in one embodiment;

FIG. 5 is a schematic diagram in partial cross-sectional view of an embodiment with a ferrule in a third state;

FIG. 6 is a schematic cross-sectional view of one of the joints of FIG. 1;

FIG. 7 is a partial sectional view schematically illustrating a pipe connection according to another embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an embodiment of the present invention.

In the figure, 1, a joint, 11, a first clamping table, 12, a third clamping table, 13, a fourth clamping table, 2, a sealing ring, 3, a connecting sleeve, 31, a first cavity section, 32, a second cavity section, 33, a third cavity section, 34, a second clamping table, 35, a second thread, 36, a handheld part, 37, a fixing ring, 4, a clamping sleeve, 41, an elastic clamping claw, 411, an engaging part, 412, a boss part, 5, a pressing sleeve, 51, a circular table surface, 6, a pipeline, 7 and a water purifying bottle head.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-3, in this embodiment, the pipe joint structure includes:

the connector comprises a connector 1, wherein an interface is arranged on the connector 1, and a first clamping table 11 is formed in the interface;

the sealing ring 2 is arranged on the first clamping table 11;

the connecting sleeve 3 is internally provided with a first cavity section 31, a second cavity section 32 and a third cavity section 33 in sequence along the axial direction of the connecting sleeve 3, the diameter of the first cavity section 31 is smaller than that of the third cavity section 33, and the second cavity section 32 is a slope section;

the clamping sleeve 4 is inserted into the first cavity section and the second cavity section of the connecting sleeve 3, one end of the clamping sleeve 4 is provided with an expandable elastic claw 41, the inner side of the end part of the elastic claw 41 is provided with an occlusion part 411, the outer side of the end part of the elastic claw 41 is provided with a boss part 412, the elastic claw 41 can be expanded to enable the clamping sleeve 4 to have a first state that the boss part 412 is abutted against the second cavity section 32, and the boss part 412 can slide on the second cavity section 32 to adjust the size of the inner diameter enclosed by the elastic claw 41;

and the connecting sleeve 3 is connected to the interface in a threaded manner at one end far away from the clamping sleeve 4, so that when the clamping sleeve 4 is in a first state, the connecting sleeve 3 can extrude the sealing ring 2 on the first clamping table 11 through the pressing sleeve 5 abutted against the end part of the elastic clamping jaw 41, and the inner diameter of the pressing sleeve 5 is not smaller than that of the clamping sleeve 4.

In the joint structure, when the joint structure is used, the pipeline 6 is hermetically connected with the interface of the joint 1, specifically, the cutting sleeve 4 is inserted into the connecting sleeve 3, the pipeline 6 penetrates into the cutting sleeve 4 to open the elastic claws 41 of the cutting sleeve 4, so that the occlusion part 411 bites the pipeline; then, the pipeline 6 is pulled towards the first cavity section 31 from the third cavity section 33 until the boss part 412 of the elastic claw 41 is tightly abutted to the second cavity section 32, so that the occlusion part 411 bites the pipeline; afterwards assemble in proper order sealing washer 2 and pressure cover 5 on first ka tai 11, stretch into pipeline 6 tip again to sealing washer 2 and pressure cover 5 in, realize pressing cover 5 and 41 tip butts of elasticity jack catch through adapter sleeve 3 and interface screw-thread fit, so not only accomplish pipeline 6 and connect 1 fastening connection, and realize pipeline 6 and connect better sealing connection between 1, both combine to realize stabilizing sealedly between pipeline 6 and the joint 1. In addition, each part of the joint structure has simple structure, low processing cost and quick and accurate disassembly and assembly.

In one example, as shown in fig. 3, a second clamping table 34 is further provided in the connecting sleeve 3 between the first cavity section 31 and the second cavity section 32, and the ferrule 4 has a second state in which the boss part 412 abuts on the second clamping table 34. The second clamping table 12 can prevent the pipe 6 with the clamping sleeve from being separated from the end of the first cavity section 31 of the connecting sleeve 3 when the pipe 6 and the connecting sleeve 3 are in strong relative displacement, and the clamping sleeve in the second state can prevent the pipe 6 from being easily separated from the end of the first cavity section 31 of the connecting sleeve 3 without external operation.

In one example, as shown in fig. 4, one end of the ferrule 4 away from the elastic claw 41 is protruded out of the first cavity section 31, and the outer side of the end is provided with a limiting part 42 extending towards the periphery, and the outer diameter of the limiting part 42 is larger than the inner diameter of the first cavity section 31. The setting of spacing portion 43 can make cutting ferrule 4 and adapter sleeve 3 equipment quick accuracy, and the equipment back, cutting ferrule 4 can not be taken off from adapter sleeve 3 easily to be favorable to pipeline 6 to insert cutting ferrule 4 from first chamber section 31 tip, when pipeline 6 inserts from this end, it is relatively light, and the application of force is relatively easy, inserts relatively fast.

On the basis of the above, as shown in fig. 4 to 5, the ferrule 4 is not easily removed from the connecting sleeve 3 without external force, and for this purpose, a structure is designed, specifically, the inner side of the end portion of the pressing sleeve 5 close to the elastic claw 41 forms a circular table 51 inclined outward, so that when the ferrule 4 is in the first state, the outer end side of the boss portion 412 can abut against the circular table 51 of the pressing sleeve 5, and the pressing sleeve 5 can press the elastic claw 41 of the ferrule 4, so that the ferrule 4 has a third state in which the boss portion 412 is separated from the second chuck 34. So can not use when needing to be changed at cutting ferrule 4, can realize elasticity jack catch 41 adduction through pressing cover 5, make cutting ferrule 4 reach the third state, later can follow the tip of the first chamber section of adapter sleeve 3 and pull out the cutting ferrule easily.

In one example, as shown in fig. 6, a third chuck 12 is further formed in the interface, and the third chuck 12 and the first chuck 11 are sequentially arranged in an ascending order from the outside of the interface to the inside of the interface; a first thread is arranged in a connector at the side part of the third clamping table 12, and a second thread 35 which is connected with the first thread in a matched manner is arranged on the outer side of the connecting sleeve 3 corresponding to the third cavity section 33. The third clamping table 12 can limit the connecting depth of the connecting sleeve 3, and further control the connecting accuracy. Compared with the adoption of the internal thread of the connecting sleeve 3, the connection is more stable in the mode, and the clamping sleeve 4 can be quickly positioned by the pressing sleeve 5 to reach the third state to be separated. The structure shown in fig. 7 can also be adopted between the connecting sleeve 3 and the joint 1.

In one example, as shown in fig. 6, a fourth chuck 13 is further formed in the interface, and the first chuck 11 and the fourth chuck 13 are sequentially arranged in an ascending order from the outside of the interface to the inside of the interface; the inner diameter of the sealing ring 2 is larger than that of the fourth clamping table 13. The fourth clamping platform 13 is provided to limit the depth of the pipeline to extend into, so that after the pipeline is connected stably, the pipeline is prevented from being inserted into the interface continuously under the action of external force, and the occlusion part 412 matched with the pipeline 6 is easily damaged.

In one example, as shown in fig. 8, a holding portion 36 is further provided on an outer side of the connecting sleeve 3 corresponding to the first cavity section 31 to facilitate quick assembly between the connecting sleeve 3 and the joint 1, and for stability of the holding portion 36, a fixing ring 37 is further provided on an outer side of the connecting sleeve between the first cavity section and the third cavity section, and the holding portion 36 is connected to the fixing ring 37.

In one example, a stainless steel sheet is embedded inside the elastic claw 41, and a part of the stainless steel sheet extending out of the elastic claw forms a bite part. The stainless steel material is adopted, the service life is long, and the cost is saved.

The pipeline joint structure has the advantages of good sealing performance, stable connection, quick assembly, convenient processing, low cost and wide application range, and can realize the connection between pipes by the bidirectional symmetrical arrangement when being applied to the connection between pipes; when the connection structure is applied to connection between a pipe and other structures, the connection structure is arranged in a one-way mode, and specifically, the following specific embodiment can be referred to:

the utility model provides a drinking water purifier, as shown in figure 8, includes pipeline 6 and water purification bottle head 7, be equipped with the fluid passage in the water purification bottle head 7, water purification bottle head 7 has at least one end to be equipped with above-mentioned pipe joint structure to with pipeline 6 sealing connection on the water purification bottle head, pipeline 6 intercommunication fluid passage, during the in-service use, the water purification bottle can be installed to water purification bottle head 7 below. The joint of the joint structure can be integrally formed with the water purification bottle head, when a filter element in the water purification device goes wrong, the pipeline needs to be disassembled for inspection and maintenance, and by adopting the pipeline joint structure, the pipeline and the water purification bottle head can be quickly and accurately disassembled.

Some districts adopt public water dispenser to supply the user to swipe the card and get the water, and public water dispenser needs a plurality of water purification bottle heads to establish ties when using, for convenient to use, can also be with a plurality of water purification bottle heads integrated into one piece for disjunctor bottle head, and disjunctor bottle head saves single series connection equipment process.

The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art. The details of the present invention are not described in detail, but are known to those skilled in the art.