阅读说明：本技术 一种电缆穿刺装置 (Cable puncture device ) 是由 李函 唐峰 陈浩彬 徐立成 郑永恒 马帅飞 刘建波 陈婉晴 杨嘉辉 邓剑飞 吉开 于 2021-06-15 设计创作，主要内容包括：本发明公开了一种电缆穿刺装置,发射组件包括下压式发射驱动机构和发射枪,下压式发射驱动机构与发射枪的输入端连接；接地组件包括第一锁扣、第二锁扣和接地钎,第一锁扣与发射组件可拆卸连接,第二锁扣与接地钎可拆卸连接；第一锁扣设有第一连接件,第一连接件设有第一卡接部,第二锁扣设有第二连接件,第二连接件设有与第一卡接部配合的第二卡接部,接地钎插入地下后,第一卡接部与第二卡接部卡接后通过卡接螺杆固定,从而使发射组件有效接地。所述电缆穿刺装置,利用下压式发射驱动机构下压推动发射枪内的射钉向电缆射出以提高电缆穿刺的效率,利用第一锁扣、第二锁扣和接地钎将发射组件有效接地,保证了操作者的安全。(The invention discloses a cable puncture device, wherein a launching assembly comprises a downward pressing type launching driving mechanism and a launching gun, and the downward pressing type launching driving mechanism is connected with the input end of the launching gun; the grounding assembly comprises a first lock catch, a second lock catch and a grounding drill rod, the first lock catch is detachably connected with the emission assembly, and the second lock catch is detachably connected with the grounding drill rod; the first lock catch is provided with a first connecting piece, the first connecting piece is provided with a first clamping portion, the second lock catch is provided with a second connecting piece, the second connecting piece is provided with a second clamping portion matched with the first clamping portion, and after the grounding drill rod is inserted into the underground, the first clamping portion and the second clamping portion are clamped and fixed through a clamping screw rod, so that the launching assembly is effectively grounded. The cable puncturing device utilizes the downward pressing type launching driving mechanism to push the launching nail in the launching gun to eject out to the cable so as to improve the efficiency of cable puncturing, and utilizes the first lock catch, the second lock catch and the grounding drill rod to effectively ground the launching assembly, so that the safety of an operator is ensured.)

1. A cable puncturing device, comprising: the device comprises a transmitting component and a grounding component;

the launching assembly comprises a downward pressing type launching driving mechanism and a launching gun, the downward pressing type launching driving mechanism is connected with the input end of the launching gun, and after the launching gun is filled with a shooting nail, the downward pressing type launching driving mechanism pushes the shooting nail to be shot from the muzzle of the launching gun;

the grounding assembly comprises a first lock catch, a second lock catch and a grounding rod, the first lock catch is detachably connected with the launching assembly, and the second lock catch is detachably connected with the grounding rod;

the first lock catch is provided with a first connecting piece, the first connecting piece is provided with a first clamping portion, the second lock catch is provided with a second connecting piece, the second connecting piece is provided with a second clamping portion matched with the first clamping portion, the grounding drill rod is inserted into the underground, the first clamping portion is fixed through a clamping screw rod after being clamped by the second clamping portion, and therefore the transmitting assembly is effectively grounded.

2. A cable puncturing device as defined in claim 1, wherein: the downward pressing type launching driving mechanism comprises a launching sleeve and a firing pin, and ammunition is integrally formed at the top of the firing pin;

the firing sleeve penetrates through the input end of the firing gun and is arranged in the firing gun in a sliding mode, the firing pin faces to ammunition located at the top of the firing nail, and the firing sleeve pushes the firing pin to impact the ammunition when sliding in the firing gun.

3. A cable puncturing device as claimed in claim 2, wherein: the downward pressing type launching driving mechanism also comprises a brake spring;

one end of the brake spring is fixedly connected with the launching sleeve, and the other end of the brake spring is provided with the firing pin, so that the brake spring applies elastic force to the firing pin to enable the firing pin to approach the launching gun.

4. A cable puncturing device as claimed in claim 3, wherein: the muzzle of launching the rifle is equipped with positioning mechanism, positioning mechanism include to the spacer of the outside arc structure that extends of launching the rifle when the nail is penetrated to the cable to the launching rifle, the spacer with the cable laminating.

5. A cable puncturing device as claimed in claim 4, wherein: the positioning mechanism further comprises a fixed base, the positioning sheets are symmetrically fixed on two sides of the fixed base, and the fixed base is provided with a through hole coaxial with the muzzle of the shooting gun;

the fixed base is detachably connected with a muzzle of the shooting gun;

when the positioning piece is attached to the cable, an emission cavity is formed between the fixed base and the cable.

6. A cable puncturing device as claimed in claim 5, wherein: the first clamping part is a first bulge and a first recess which are alternately distributed, and the second clamping part is a second recess and a second bulge which are alternately distributed;

wherein the first protrusion is matched with the second recess, and the first recess is matched with the second protrusion.

7. A cable puncturing device as claimed in claim 6, wherein: the first lock catch comprises a first mounting groove, the downward pressing type launching driving mechanism is provided with a first mounting lug matched with the first mounting groove, and the first mounting groove and the first mounting lug are fixedly connected through a first fixing screw rod;

the second lock catch comprises a second mounting groove, the grounding drill rod is provided with a second mounting lug matched with the second mounting groove, and the second mounting groove is fixedly connected with the second mounting lug through a second fixing screw rod.

8. A cable puncturing device as claimed in claim 7, wherein: the first fixing screw and the second fixing screw are both provided with rocking handles.

9. A cable puncturing device as claimed in claim 8, wherein: the insulating rod is integrally formed;

the one end that the transmission sleeve pipe kept away from the transmission rifle is equipped with the connecting rod, the insulator spindle with connecting rod threaded connection.

10. A cable puncturing device as claimed in claim 9, wherein: the lower pressing type launching driving mechanism further comprises a return spring, one end of the return spring is fixedly connected with the launching sleeve, and the other end of the return spring is fixedly connected with the launching gun, so that the return spring applies elastic force to the launching gun to enable the launching gun to tend to be far away from the launching sleeve.

Technical Field

The invention relates to the technical field of cable detection, in particular to a cable puncturing device.

Background

The cable puncture is mainly used for active identification when an unknown cable is electrified or not. When one cable needs to be transformed, after a special instrument is used for exactly confirming that the cable is free of electricity, before the target cable is officially cut off, the cable is punctured and grounded, so that safety is ensured.

In the construction process of a target cable with power failure on site, cable puncture is an essential measure for ensuring construction safety. Due to the factors of insufficient support below the cable, large depth of a cable well and narrow operation space, the traditional cable puncturing device has the problem of low puncturing efficiency. In addition, the traditional cable puncturing device ensures safety by grounding after a steel nail penetrates through a cable, and the cable puncturing effect is poor and satisfactory due to the influence of factors such as environment, operation space and the like, so that effective grounding cannot be ensured, and potential safety hazards exist in operation.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide a cable puncturing device, which utilizes a push-down type launching driving mechanism to push a launching pin in a launching gun to launch a cable, so as to improve the efficiency of cable puncturing, and utilizes a first lock catch, a second lock catch and a grounding rod to effectively ground a launching assembly, thereby ensuring the safety of an operator.

In order to achieve the purpose, the invention adopts the following technical scheme: a cable puncturing device comprises a transmitting component and a grounding component;

the launching assembly comprises a downward pressing type launching driving mechanism and a launching gun, the downward pressing type launching driving mechanism is connected with the input end of the launching gun, and after the launching gun is filled with a shooting nail, the downward pressing type launching driving mechanism pushes the shooting nail to be shot from the muzzle of the launching gun;

the grounding assembly comprises a first lock catch, a second lock catch and a grounding rod, the first lock catch is detachably connected with the launching assembly, and the second lock catch is detachably connected with the grounding rod;

the first lock catch is provided with a first connecting piece, the first connecting piece is provided with a first clamping portion, the second lock catch is provided with a second connecting piece, the second connecting piece is provided with a second clamping portion matched with the first clamping portion, the grounding drill rod is inserted into the underground, the first clamping portion is fixed through a clamping screw rod after being clamped by the second clamping portion, and therefore the transmitting assembly is effectively grounded.

It is worth mentioning that the downward-pressing type shooting driving mechanism comprises a shooting sleeve and a firing pin, and ammunition is integrally formed at the top of the shooting pin;

the firing sleeve penetrates through the input end of the firing gun and is arranged in the firing gun in a sliding mode, the firing pin faces to ammunition located at the top of the firing nail, and the firing sleeve pushes the firing pin to impact the ammunition when sliding in the firing gun.

Optionally, the press-down type emission driving mechanism further comprises a brake spring;

one end of the brake spring is fixedly connected with the launching sleeve, and the other end of the brake spring is provided with the firing pin, so that the brake spring applies elastic force to the firing pin to enable the firing pin to approach the launching gun.

Specifically, the muzzle of launching the rifle is equipped with positioning mechanism, positioning mechanism include to the spacer of the outside arc structure that extends of launching the rifle when the nail is launched to the cable to the launching rifle, the spacer with the cable laminating.

Preferably, the positioning mechanism further comprises a fixed base, the positioning pieces are symmetrically fixed on two sides of the fixed base, and the fixed base is provided with a through hole coaxial with the muzzle of the shooting gun;

the fixed base is detachably connected with a muzzle of the shooting gun;

when the positioning piece is attached to the cable, an emission cavity is formed between the fixed base and the cable.

It is worth to say that the first clamping portion is a first protrusion and a first recess which are alternately distributed, and the second clamping portion is a second recess and a second protrusion which are alternately distributed;

wherein the first protrusion is matched with the second recess, and the first recess is matched with the second protrusion.

Optionally, the first lock catch includes a first mounting groove, the downward-pressing type launching driving mechanism is provided with a first mounting lug matched with the first mounting groove, and the first mounting groove and the first mounting lug are fixedly connected through a first fixing screw;

the second lock catch comprises a second mounting groove, the grounding drill rod is provided with a second mounting lug matched with the second mounting groove, and the second mounting groove is fixedly connected with the second mounting lug through a second fixing screw rod.

Specifically, the first fixing screw and the second fixing screw are both provided with rocking handles.

Preferably, the insulation device further comprises an integrally formed insulation rod;

the one end that the transmission sleeve pipe kept away from the transmission rifle is equipped with the connecting rod, the insulator spindle with connecting rod threaded connection.

It is worth to say that the push-down type launching driving mechanism further comprises a return spring, one end of the return spring is fixedly connected with the launching sleeve, and the other end of the return spring is fixedly connected with the launching gun, so that the return spring applies elastic force to the launching gun to enable the launching gun to tend to be away from the launching sleeve.

One of the above technical solutions has the following beneficial effects: among the cable piercing depth, the pushing down formula is launched actuating mechanism and is pushed down the nail that penetrates in the transmission rifle jets out to the cable, just can pass the cable, reaches the purpose of cable puncture, owing to at the in-process of cable puncture, utilizes the formula of pushing down to launch actuating mechanism driven, just can avoid the cable below to support the influence of not enough, the cable well degree of depth is big and the narrow and small factor of operating space to the efficiency of cable puncture has been improved.

Before the cable is punctured, the launching assembly and the grounding drill rod inserted into the ground are connected through the first lock catch and the second lock catch, so that the launching assembly can be effectively grounded when the cable puncturing device is used, and the safety of an operator is guaranteed. First hasp and second hasp utilize first joint portion with second joint portion matches and realizes the joint, the rethread the joint screw rod is fixed, and it is convenient to dismantle, can install fast when using, raises the efficiency.

Drawings

FIG. 1 is a schematic illustration of a disassembled structure of a firing assembly and an insulating rod in one embodiment of the present invention;

FIG. 2 is a schematic view of a first latch according to an embodiment of the present invention;

FIG. 3 is a schematic view of a second locking device according to an embodiment of the present invention;

FIG. 4 is an elevation view of a first connector in an embodiment of the present invention;

FIG. 5 is an elevation view of a second connector in an embodiment of the present invention;

FIG. 6 is a schematic view of a grounding pin according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of a shot pin in an embodiment of the present invention;

FIG. 8 is a cross-sectional view of one embodiment of the present invention;

wherein: 1 an emitting assembly; 11 a push-down firing drive mechanism; 111 a launch sleeve; 112 firing pin; 113 a brake spring; 114 a return spring; 115 a connecting rod; 116 a first mounting ear; 12 a shooting gun; 121 a positioning mechanism; 1211 alignment plate; 122 fixing the base; 1221 a through hole; 123 an emission cavity; 2, shooting a nail; 21 ammunition; 31 a first latch; 311 a first mounting groove; 312 a first connector; 3121 a first clamping portion; 3122 a first protrusion, 3123 a first depression; 313 a first set screw; 3131 rocking the handle; 32 a second lock catch; 321 a second mounting groove; 322 a second connector; 3221 a second clamping portion; 3222 a second protrusion; 3223 a second recess; 323 a second fixing screw; 33 a grounding pin; 331 a second mounting ear; 4, an insulating rod; 5 a cable.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, whether explicit or implicit, for distinguishing between the described features, whether sequential or explicit.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A cable puncturing device according to an embodiment of the present invention will be described with reference to fig. 1 to 8, which includes a transmitting assembly 1 and a grounding assembly;

the launching assembly 1 comprises a downward-pressing type launching driving mechanism 11 and a launching gun 12, the downward-pressing type launching driving mechanism 11 is connected with the input end of the launching gun 12, and after the launching gun 12 is installed in the launching nail 2, the downward-pressing type launching driving mechanism 11 pushes the launching nail 2 to be launched from the muzzle of the launching gun 12;

the grounding assembly comprises a first lock catch 31, a second lock catch 32 and a grounding rod 33, wherein the first lock catch 31 is detachably connected with the emission assembly 1, and the second lock catch 32 is detachably connected with the grounding rod 33;

the first lock catch 31 is provided with a first connecting piece 312, the first connecting piece 312 is provided with a first clamping portion 3121, the second lock catch 32 is provided with a second connecting piece 322, the second connecting piece 322 is provided with a second clamping portion 3221 matched with the first clamping portion 3121, after the grounding rod 33 is inserted into the ground, the first clamping portion 3121 and the second clamping portion 3221 are clamped and fixed through a clamping screw rod, and therefore the transmitting assembly 1 is effectively grounded.

Among the cable piercing depth, the push down formula is launched actuating mechanism 11 and is pushed down launch 2 of penetrating in the rifle 12 and jet out to cable 5, just can pass cable 5, reach the purpose of cable piercing, owing to at the in-process of cable piercing, utilize and push down formula launch actuating mechanism 11 driven, just can avoid cable 5 below to support the influence of not enough, the big and narrow and small factor of operating space of cable 5 well degree of depth to the efficiency of cable piercing has been improved.

Before the cable is punctured, the launching assembly 1 and the grounding drill rod 33 inserted into the ground are connected through the first lock catch 31 and the second lock catch 32, so that the launching assembly 1 can be effectively grounded when the cable puncturing device is used, and the safety of an operator is guaranteed. First hasp 31 and second hasp 32 utilize first joint portion 3121 with second joint portion 3221 matches and realizes the joint, the rethread the joint screw rod is fixed, and it is convenient to dismantle, can install fast when using, raises the efficiency.

The gun 12 is made of a strong ferromagnetic material, and can effectively fix the nail 2 to prevent the nail 2 from being displaced. The first lock catch 31 and the second lock catch 32 are made of oxygen-free copper wires; the grounding brazing rod 33 is hot galvanizing round steel, and the sectional area thereof is 190-200mm²The length is 900-1000 mm; the direct current resistance of the grounding component is less than 0.79m omega/meter, and the grounding high current can be prevented from causing damage to operators.

Optionally, the downward-pressing type firing driving mechanism 11 includes a firing sleeve 111 and a firing pin 112, as shown in fig. 8, a cartridge 21 is integrally formed on the top of the firing pin 2;

the firing sleeve 111 passes through the input end of the firing gun 12 and is slidably disposed in the firing gun 12, the firing pin 112 faces the ammunition 21 located at the top of the firing pin 2, and the firing sleeve 111 pushes the firing pin 112 downward to strike the ammunition 21 when sliding in the firing gun 12.

When a cable is punctured, the firing pin 112 is pushed by the downward pressure of the firing sleeve 111 to strike the ammunition 21 at the top of the shooting nail 2, the ammunition 21 explodes to generate impact force, so that the shooting nail 2 is shot along the muzzle of the shooting gun 12, and the cable 5 can be penetrated.

Shooting nail 2 and ammunition 21 integrated into one piece, can accomplish the installation and once target in place, simplified the installation step, guaranteed ease for use and durability, shooting nail 2 need not specially unpack emission gun 12 apart and clear up out the remaining shell of ammunition 21 after the firing, be convenient for clear up the maintenance.

The cable 5 is composed of a polyvinyl chloride outer sheath, a steel armor, a polyvinyl chloride inner sheath, a filler, a copper shielding layer, a cross-linked polyethylene insulating layer and a wire core from outside to inside respectively, the ammunition 21 with double-base-drug components is adopted to ensure that the shooting nail 2 triggered by the cable puncturing device has enough puncturing force, the effective length of the shooting nail 2 is 30-32mm, and the shooting nail 2 is ensured to be capable of effectively puncturing the cable 5 and avoiding two-phase short circuit to the maximum extent.

Preferably, the striker 112 is made of 60 si-dimanganese, which can ensure the hardness and durability of the striker 112.

In some embodiments, the push-down firing drive mechanism 11 further comprises a brake spring 113;

one end of the braking spring 113 is fixedly connected to the striking sleeve 111, and the other end of the braking spring 113 is provided with the striker 112, so that the braking spring 113 applies an elastic force to the striker 112 to urge the striker 112 toward the gun 12.

After the firing pin 112 impacts the ammunition 21 to cause the ammunition 21 to explode, due to the influence of the explosion of the ammunition 21, the firing pin 112 rebounds to move towards the firing sleeve 111, and the elastic force of the brake spring 113 can counteract the force of the ammunition 21 exploding to make the firing pin 112 move, so that the firing sleeve 111 is prevented from shaking due to the impact of the firing pin 112, and the accuracy of cable penetration is improved.

It should be noted that the muzzle of the launch gun 12 is provided with a positioning mechanism 121, the positioning mechanism 121 includes a positioning plate 1211 of an arc structure extending to the outside of the launch gun 12, and when the launch gun 12 launches the launch nail 2 to the cable 5, the positioning plate 1211 is attached to the cable 5.

When a cable is punctured, the muzzle of the shooting gun 12 is aligned with the cable 5, the positioning plate 1211 of the positioning mechanism 121 can be matched with the cylindrical cable 5 due to the arc-shaped structure to clamp the cable 5, so that the movement of the shooting gun 12 is limited, when the shooting nail 2 is shot to the cable 5 from the muzzle of the shooting gun 12, the shooting gun 12 and the cable 5 can be kept relatively static, and the phenomenon that the shooting gun 12 moves due to the instantaneous explosive force of the shooting nail 2 shot by the shooting gun 12 to cause the puncture displacement to generate deviation is avoided.

Specifically, the positioning mechanism 121 further includes a fixing base 122, the positioning plate 1211 is symmetrically fixed on two sides of the fixing base 122, and the fixing base 122 is provided with a through hole 1221 coaxial with the muzzle of the shooting gun 12;

the fixed base 122 is detachably connected with the muzzle of the shooting gun 12;

as shown in fig. 8, when the positioning sheet 1211 is attached to the cable 5, an emitting cavity 123 is formed between the fixing base 122 and the cable 5.

The angle and the position of the positioning mechanism 121 can be adjusted according to the trend of the cable 5, so that the influence of environmental factors is reduced. The nail 2 is shot from the muzzle of the gun 12, passes through the penetration hole 1221, and then penetrates the cable 5. After the shooting nail 2 is shot from the shooting gun 12, the speed can be increased in the shooting cavity 123, so that the shooting nail 2 can be ensured to effectively penetrate into the cable 5.

In some embodiments, as shown in fig. 2 to 5, the first clamping portions 3121 are first protrusions 3122 and first depressions 3123 which are alternately distributed, and the second clamping portions 3221 are second depressions 3223 and second protrusions 3222 which are alternately distributed;

wherein the first protrusion 3122 cooperates with the second recess 3223, and the first recess 3123 cooperates with the second protrusion 3222.

The first protrusion 3122 and the second recess 3223 cooperate with each other, so that the first connection member 312 and the second connection member 322 can be clamped to limit the relative movement therebetween.

Optionally, as shown in fig. 2, the first latch 31 includes a first mounting groove 311, the push-down type launching driving mechanism 11 is provided with a first mounting lug 116 matching with the first mounting groove 311, and the first mounting groove 311 and the first mounting lug 116 are fixedly connected by a first fixing screw 313; first installation ear 116 be equipped with first mounting screw 313 complex first installation screw, the cell wall of first mounting groove 311 also seted up with first mounting through-hole of first mounting screw 313 complex, first mounting screw 313 passes first installation through-hole with locking behind the first installation screw, just can be with first installation ear 116 is fixed in first installation groove 311, thereby makes push-down type transmission actuating mechanism 11 with first hasp 31 fixed connection.

As shown in fig. 3, the second locking catch 32 includes a second mounting recess 321, and as shown in fig. 6, the grounding pin 33 is provided with a second mounting lug 331 engaged with the second mounting recess 321, and the second mounting recess 321 and the second mounting lug 331 are fixedly connected by a second fixing screw 323.

The second mounting lug 331 is provided with a second mounting screw hole matched with the second fixing screw 323, a second mounting through hole matched with the second fixing screw 323 is also formed in the groove wall of the second mounting groove 321, and the second fixing screw 323 passes through the second mounting through hole and the second mounting screw hole and then is locked, so that the second mounting lug 331 can be fixed in the second mounting groove 321, and the grounding rod 33 and the second lock catch 32 are fixedly connected.

Preferably, as shown in fig. 2 and 3, the first fixing screw 313 and the second fixing screw 323 are provided with a crank 3131.

The rocking handle 3131 of the first fixing screw 313 is rocked to fix the push-down type firing driving mechanism 11 and the first locker 31, or the rocking handle 3131 of the second fixing screw 323 is rocked to fixedly connect the grounding pin 33 and the second locker 32, and thus, no other tool is required for cooperation, and the operation is simple.

In some embodiments, an integrally formed insulating rod 4;

one end of the launching sleeve 111, which is far away from the launching gun 12, is provided with a connecting rod 115, and the insulating rod 4 is in threaded connection with the connecting rod 115.

And the insulating rod 4 is in threaded connection with the connecting rod 115, so that the purpose of quick installation is achieved. The operator is as long as handheld insulator spindle 4 will push down behind 12 battle array cables 5 of transmission rifle 4, transmission rifle 12 just can to the nail 2 is penetrated out to cable 5. The length of the insulating rod 4 is 1.4-1.6m, and the insulating rod 4 is made of epoxy resin, so that the insulating requirement is met. The integrally formed insulating rod 4 has strong downward pressure resistance and is not easy to damage.

It should be noted that the push-down type firing driving mechanism 11 further includes a return spring 114, one end of the return spring 114 is fixedly connected to the firing sleeve 111, and the other end of the return spring 114 is fixedly connected to the firing gun 12, so that the return spring 114 applies an elastic force to the firing gun 12 to make the firing gun 12 tend to move away from the firing sleeve 111.

After the firing sleeve 111 is pressed downwards to push the firing pin 112 to strike the shooting nail 2, the return spring 114 contracts, and after the downward pressure is lost, the elastic force of the return spring 114 enables the firing sleeve 111 to rebound and return, so that the next cable puncture can be immediately made.

Other constructions and operation of a cable puncturing device according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.