阅读说明：本技术 具有阅读照明和陪护照明功能的照明装置 (Lighting device with reading lighting and accompanying lighting functions ) 是由 黄冠江 郭维鑫 莫深阳 于 2021-06-10 设计创作，主要内容包括：本发明提供了一种具有阅读照明和陪护照明功能的照明装置,属于照明灯技术领域,包括阅读灯具本体和陪护灯具本体；阅读灯具本体包括下部具有敞口结构的第一反光罩、水平设置的转动件以及连接在转动件上部的第一光源组件,转动件的两端转动连接在第一反光罩相对的侧壁上,用于调节第一光源组件与第一反光罩的照射角度；陪护灯具本体包括下部具有敞口结构的第二反光罩、水平设置在第二反光罩内的支撑架以及连接在支撑架上部的第二光源组件。本发明提供的具有阅读照明和陪护照明功能的照明装置,通过并排两个灯具,实现两组不同光束角的光照,且第一光源组件可实现照明角度的调节,方便病人陪护和阅读的需要,同时防止影响同病房其他病人。(The invention provides a lighting device with reading lighting and accompanying lighting functions, which belongs to the technical field of lighting lamps and comprises a reading lamp body and an accompanying lamp body; the reading lamp body comprises a first reflecting cover with an open structure at the lower part, a rotating part horizontally arranged and a first light source component connected to the upper part of the rotating part, wherein two ends of the rotating part are rotatably connected to the opposite side walls of the first reflecting cover and used for adjusting the irradiation angle between the first light source component and the first reflecting cover; the accompanying lamp body comprises a second reflecting cover with an open structure at the lower part, a support frame horizontally arranged in the second reflecting cover and a second light source component connected to the upper part of the support frame. According to the lighting device with the reading lighting and accompanying lighting functions, the two lamps are arranged side by side, so that the two groups of lights with different beam angles are illuminated, the first light source component can adjust the lighting angle, the accompanying and reading requirements of a patient can be met, and the influence on other patients in the same ward can be avoided.)

1. Lighting device with reading illumination and illumination function of accompanying and attending to, its characterized in that includes:

the reading lamp body comprises a first reflecting cover with an open structure at the lower part, a rotating part horizontally arranged in the first reflecting cover and a first light source component connected to the upper part of the rotating part, wherein two ends of the rotating part are rotatably connected to the opposite side walls of the first reflecting cover and used for adjusting the irradiation angle between the first light source component and the first reflecting cover;

the accompanying lamp body comprises a second reflecting cover with an opening structure at the lower part, a support frame horizontally arranged in the second reflecting cover and a second light source assembly connected to the upper part of the support frame, wherein the second reflecting cover is positioned at one side of the first reflecting cover, and the width of the second reflecting cover is greater than that of the first reflecting cover;

the first light source component and the second light source component are switched on to adjust the irradiation effect so as to adapt to reading illumination or accompanying illumination.

2. The illumination device with the functions of reading illumination and accompanying illumination as claimed in claim 1, wherein two sides of the support frame are respectively provided with a connecting portion arranged along the length direction of the support frame, the connecting portions are internally provided with a limiting groove, and the limiting groove is used for limiting the second light source assembly in the connecting portions.

3. The illumination device with reading illumination and accompanying illumination functions as claimed in claim 2, wherein the second light source assembly comprises:

a light emitting plate located within the connection portion;

the light transmitter is located on the outer side of the light-emitting plate and connected with the limiting groove, and the light transmitter is used for abutting the light-emitting plate against the wall surface of the connecting portion.

4. The illumination device with reading illumination and accompanying illumination functions as claimed in claim 3, wherein light shielding plates are arranged on two sides of the lower end face of the support frame along the length direction of the support frame, and the light shielding plates are positioned below the connecting parts.

5. The illumination device with reading illumination and accompanying illumination functions as claimed in claim 1, wherein the rotating member is provided with a rotating shaft, and both ends of the rotating shaft are rotatably connected to the opposite side walls of the first reflecting cover.

6. The illumination device with reading illumination and accompanying illumination functions as claimed in claim 5, wherein the rotation member comprises:

the rotating shaft sleeve is sleeved on the outer side of the rotating shaft;

the installed part is connected on the rotation axis cover, the upper portion of installed part is equipped with the installation department, the both sides of installation department are provided with and are used for spacingly the joint groove of first light source subassembly.

7. The illumination device with reading illumination and accompanying illumination functions as claimed in claim 6, wherein the first light source assembly comprises:

a light emitting member connected to a bottom surface of the mounting portion;

the light-transmitting piece is positioned above the light-emitting piece, and is clamped in the clamping groove and used for abutting the light-emitting piece on the bottom plate of the mounting part; and the light-transmitting piece is provided with two arc outer side walls which are symmetrically arranged and protrude towards one side far away from the light-emitting piece.

8. The illumination device with reading illumination and accompanying illumination functions as claimed in claim 1, wherein the inner side walls of the first reflector and the second reflector are provided with a matte coating.

9. The illumination device as claimed in claim 8, wherein the second reflector has two inner arc-shaped walls symmetrically disposed, and the radius of curvature of the inner arc-shaped walls decreases from a side close to the second light source module to a side far from the second light source module.

10. The illumination device with the functions of reading and lighting for accompanying and attending, as claimed in claim 8, wherein said first reflecting cover has a plurality of arc-shaped reflecting surfaces on its inner side wall, and said rotating member has a plurality of said first light source assemblies corresponding to said arc-shaped reflecting surfaces.

Technical Field

The invention belongs to the technical field of illuminating lamps, and particularly relates to an illuminating device with reading illumination and accompanying illumination functions for hospital illumination.

Background

Adopt in traditional ward to install ceiling lamp in order to satisfy the illumination demand in the ward on the ceiling, but this kind of design light angle is single, can not adjust the angle and the light intensity of light, lacks individual illumination space. Especially when there are multiple beds in a ward, it is difficult to satisfy different needs of different patients for lighting with uniform lighting.

When a patient needs to accompany, the required lighting irradiation area is only the sickbed and the vicinity of the sickbed, and the lighting needs to be soft; when the patient needs to read, the required lighting area is only the sickbed part. Different patients have different requirements on illumination, and the uniform illumination causes inconvenience in practical use and influences on other people in a ward. Wherein the beam angle required for reading illumination is 35 deg., and the beam angle required for chaperone illumination is 60 deg..

Disclosure of Invention

The invention aims to provide an illuminating device with reading illumination and accompanying illumination functions, aiming at meeting the illumination requirements of accompanying and reading of patients.

In order to achieve the purpose, the invention adopts the technical scheme that: provided is a lighting device having reading lighting and accompanying lighting functions, including:

the reading lamp body comprises a first reflecting cover with an open structure at the lower part, a rotating part horizontally arranged in the first reflecting cover and a first light source component connected to the upper part of the rotating part, wherein two ends of the rotating part are rotatably connected to the opposite side walls of the first reflecting cover and used for adjusting the irradiation angle between the first light source component and the first reflecting cover;

the accompanying lamp body comprises a second reflecting cover with an opening structure at the lower part, a support frame horizontally arranged in the second reflecting cover and a second light source assembly connected to the upper part of the support frame, wherein the second reflecting cover is positioned at one side of the first reflecting cover, and the width of the second reflecting cover is greater than that of the first reflecting cover;

the first light source component and the second light source component are switched on to adjust the irradiation effect so as to adapt to reading illumination or accompanying illumination.

As another embodiment of this application, the both sides of support frame all are equipped with the edge the connecting portion that support frame length direction set up, be equipped with the spacing groove in the connecting portion, the spacing groove be used for with second light source subassembly is spacing in the connecting portion.

As another embodiment of the present application, the second light source assembly includes:

a light emitting plate located within the connection portion;

the light transmitter is located on the outer side of the light-emitting plate and connected with the limiting groove, and the light transmitter is used for abutting the light-emitting plate against the wall surface of the connecting portion.

As another embodiment of this application, the both sides of the lower terminal surface of support frame are provided with along the light screen of support frame length direction, the light screen is located the below of connecting portion.

As another embodiment of the present application, a rotating shaft is disposed on the rotating member, and two ends of the rotating shaft are rotatably connected to the opposite side walls of the first reflecting cover.

As another embodiment of the present application, the rotating member includes:

the rotating shaft sleeve is sleeved on the outer side of the rotating shaft;

the installed part is connected on the rotation axis cover, the upper portion of installed part is equipped with the installation department, the both sides of installation department are provided with and are used for spacingly the joint groove of first light source subassembly.

As another embodiment of the present application, the first light source assembly includes:

a light emitting member connected to a bottom surface of the mounting portion;

the light-transmitting piece is positioned above the light-emitting piece, and is clamped in the clamping groove and used for abutting the light-emitting piece on the bottom plate of the mounting part; and the light-transmitting piece is provided with two arc outer side walls which are symmetrically arranged and protrude towards one side far away from the light-emitting piece.

As another embodiment of the present application, the inner side walls of the first reflector and the second reflector are provided with a matte coating.

As another embodiment of the present application, the second reflector has two arc-shaped inner sidewalls symmetrically disposed, and a curvature radius of the arc-shaped inner sidewalls gradually decreases from a side close to the second light source assembly to a side far away from the second light source assembly.

As another embodiment of this application, concrete a plurality of arc reflection of light face on the inside wall of first reflector, be equipped with on the rotation piece a plurality ofly with the arc reflection of light face corresponds the setting first light source subassembly.

The lighting device with the reading lighting and accompanying lighting functions has the advantages that: compared with the prior art, the lighting device with the reading lighting and accompanying lighting functions realizes the lighting of two groups of different beam angles by arranging the two lamps side by side, and the first light source component can realize the adjustment of the lighting angle, thereby being convenient for patients to accompany and read, and simultaneously preventing the influence on other patients in the same ward.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions 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 creative efforts.

Fig. 1 is a schematic structural diagram of an illumination device with reading illumination and accompanying illumination functions according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a reading lamp body according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a rotating member according to an embodiment of the present invention;

FIG. 4 is a schematic view of a rotatable member and a light transmissive member according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first reflector according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an accompanying lamp body according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating a connection between a support frame and a light transmission device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second reflector according to an embodiment of the present invention.

In the figure: 100. a first reflector; 110. a through hole; 120. a rotating member; 121. rotating the shaft sleeve; 122. An outer sleeve; 123. a reinforcing structure; 124. a mounting member; 130. a first light source assembly; 131. a light transmissive member; 140. an outer frame; 200. a second reflector; 201. a middle bearing plate; 210. a support frame; 211. a visor; 220. a light transmission device.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 8, the illumination device with reading illumination and accompanying illumination functions provided by the present invention will now be described. The lighting device with the reading lighting and accompanying lighting functions comprises a reading lamp body and an accompanying lamp body; the reading lamp body comprises a first reflecting cover 100 with an open structure at the lower part, a rotating part 120 horizontally arranged in the first reflecting cover 100 and a first light source component 130 connected to the upper part of the rotating part 120, wherein two ends of the rotating part 120 are rotatably connected to the opposite side walls of the first reflecting cover 100 and used for adjusting the irradiation angle between the first light source component 130 and the first reflecting cover 100; the accompanying lamp body comprises a second reflecting cover 200 with an open structure at the lower part, a support frame 210 horizontally arranged in the second reflecting cover 200 and a second light source component connected to the upper part of the support frame 210, wherein the second reflecting cover 200 is positioned at one side of the first reflecting cover 100, and the width of the second reflecting cover 200 is greater than that of the first reflecting cover 100; the second light source assembly is switched on with the first light source assembly 130 for adjusting the illumination effect to adapt to different illumination requirements.

Compared with the prior art, the lighting device with the reading lighting and accompanying lighting functions is provided with the reading lamp body and the accompanying lamp body side by side, and the two lamp bodies are switched on, so that the change of the illumination intensity and the beam angle is realized, and the reading requirement and the accompanying requirement are met.

The first light source assembly 130 is installed at the upper part of the rotating member 120 rotatably connected with the first reflecting cover 100, the rotating member 120 rotates, the first light source assembly 130 positioned at the upper part of the rotating member 120 also rotates along with the rotating member, and the irradiation angle of the light beam emitted by the first light source assembly 130 on the first reflecting cover 100 changes, so that multi-angle reading and lighting are realized; the second light source assembly is arranged at the upper part of the support frame 210 in the second reflecting cover 200, emits light to irradiate the second reflecting cover 200 and is reflected into a ward through the second reflecting cover 200; the width of the second reflector 200 is greater than the width of the first reflector 100, and the beam angle of the light reflected by the second reflector 200 is greater than the beam angle of the light reflected by the first reflector 100 from the first light source assembly 130.

According to the lighting device with the reading lighting and accompanying lighting functions, two groups of lights with different beam angles are illuminated by the two parallel lamps, the first light source assembly 130 can adjust the lighting angle, so that the accompanying and reading requirements of patients can be met, and the influence on other patients in the same ward can be avoided.

In some embodiments, the two sides of the supporting frame 210 are respectively provided with a connecting portion disposed along the length direction of the supporting frame 210, a limiting groove is disposed in the connecting portion, and the limiting groove is used for limiting the second light source assembly in the connecting portion. Referring to fig. 7, the supporting frame 210 is disposed along the length direction of the second reflector 200, and the supporting frame 210 is located on the central line of the second reflector 200, the two sides of the supporting frame 210 are both provided with connecting portions, the connecting portions are horizontally disposed along the length direction of the supporting frame 210, the connecting portions are used for installing a second light source assembly, limiting grooves are formed in the connecting portions, the limiting grooves are convenient for limiting and installing the second light source assembly, and the second light source assembly is fixed in the connecting portions.

Optionally, the upper end plate and the lower end plate of the supporting frame 210 are both provided with the reinforcing structure 123. The lower end plate of the supporting frame 210 is provided with an arc-shaped reinforcing structure 123 to enhance the strength of the supporting frame 210 and prevent the supporting frame from deforming.

Optionally, the supporting frame 210 is provided with a connecting ring sleeve along the length direction, and the connecting ring sleeve is used for connecting the supporting frame 210 to the ceiling.

In some embodiments, the second light source assembly includes a light emitting plate located in the connecting portion and a light transmitter 220 located outside the light emitting plate, and the light transmitter 220 is connected in the limiting groove and is used for supporting the light emitting plate on the wall surface of the connecting portion. Referring to fig. 7, the light-emitting plate abuts against the wall surface of the mounting portion, the light transmitter 220 is located outside the light-emitting plate, and the light transmitter 220 is connected with the limiting groove to abut against the light-emitting plate in the connecting portion to prevent the light-emitting plate from shaking. Optionally, the light transmission device 220 is a long strip, the light transmission device 220 is disposed along the length direction of the supporting frame 210, and two ends of the light transmission device 220 along the width direction are clamped in the limiting groove. The outer wall surface of the light transmitter 220 is a plane.

In some embodiments, the supporting frame 210 is provided with a light shielding plate 211 at two sides of the lower end surface thereof, and the light shielding plate 211 is located below the connecting portion. Referring to fig. 7, a light shielding plate 211 is disposed on a lower end surface of the supporting frame 210, and the light shielding plate 211 is located below the second light source assembly. Under the action of the light shielding plate 211, the light emitted by the second light source assembly cannot penetrate through the light shielding plate 211, but can be reflected downwards to the hospital bed and the ground only by the second reflector 200.

Optionally, the length of the light shielding plate 211 is the same as that of the support frame 210, and the width of the light shielding plate 211 is smaller than that of the second light source assembly.

In some embodiments, the rotating member 120 is provided with a rotating shaft, and both ends of the rotating shaft are rotatably connected to the opposite sidewalls of the first reflector 100. The rotating member 120 is provided with a rotating shaft, and both ends of the rotating shaft are rotatably connected to the opposite sidewalls of the first reflector 100. Two ends of the rotating shaft penetrate through the first reflecting shade 100, and the rotating shaft can rotate around the self axial direction; the rotating member 120 is sleeved outside the rotating shaft and rotates synchronously with the rotating shaft, the first light source assembly 130 is connected above the rotating member 120, and the rotating member 120 drives the first light source assembly 130 to rotate by means of the rotating shaft.

In some embodiments, the rotating member 120 includes a rotating shaft sleeve 121 disposed outside the rotating shaft and a mounting member 124 connected to the rotating shaft sleeve 121; the mounting member 124 is provided with a mounting portion for fixing the first light source assembly 130. Referring to fig. 3, the rotating shaft sleeve 121 is sleeved on the rotating shaft and rotates synchronously with the rotating shaft, and the rotating shaft sleeve 121 is connected with the mounting member 124; the first light source assembly 130 is installed in the installation part of the installation member 124, and the first light source assembly 130 is positioned above the rotation axis by the installation member 124. The first light source assembly 130 irradiates upward, and light irradiates the first reflecting cover 100 above the rotating member 120 and is reflected to the indoor by the arc-shaped reflecting surface of the first reflecting cover 100. The lower extreme and the rotatory axle sleeve 121 of installed part 124 are connected, and the upper end of installed part 124 is equipped with the installation department that is used for installing the light source subassembly, is provided with the joint groove in the both sides of installation department, and the length direction in joint groove is unanimous with the length direction of installed part 124, and the joint groove is with first light source subassembly 130 joint in the installation department.

Specifically, the rotating shaft sleeve 121 is provided with an axial groove along the length direction thereof, a clamping block matched with the axial groove in a clamping manner is arranged on the rotating shaft, and the rotating shaft sleeve 121 is connected with the clamping block in a clamping manner by virtue of the axial groove, so that the rotating shaft can be conveniently installed and replaced.

Optionally, the upper portion of the mounting member 124 is provided with a mounting portion for mounting the light source assembly, the lower end surface of the mounting member 124 for connecting the rotating shaft sleeve 121 is a plane, and a reinforcing structure is disposed between the rotating shaft sleeve 121 and the mounting member 124 to increase the connection strength between the lower end surface of the mounting member 124 and the rotating shaft sleeve 121. Specifically, the reinforcing structure includes a reinforcing structure 123 and an outer sleeve 122, the reinforcing structure 123 connects the rotating sleeve 121 and the mounting member 124, and the reinforcing structure 123 is plate-shaped and disposed along a length direction of the mounting member 124. The outer sleeve 122 and the rotating shaft sleeve 121 are coaxially arranged, the central angle of the outer sleeve 122 is larger than 180 degrees and smaller than 360 degrees, two edges of the outer sleeve 122 are connected with the lower end face of the mounting piece 124, a connecting piece connected with the rotating shaft sleeve 121 is arranged on the inner side wall of the outer sleeve 122, and at least two connecting pieces are arranged.

In some embodiments, the first light source assembly 130 includes a bottom light emitting member coupled to the mounting portion and a light transmitting member 131 positioned above the light emitting member; the light-transmitting piece 131 is clamped in the clamping groove and used for abutting the light-emitting piece on the bottom plate of the mounting part; and the light-transmitting member 131 has two arc outer sidewalls symmetrically disposed and protruding to a side far away from the light-emitting member. Referring to fig. 3 and 4, the light-transmitting member 131 is disposed above the light-emitting member for transmitting light of the light-emitting member and protecting the light-emitting member; the both sides of printing opacity piece 131 are provided with joint portion, and joint portion is located the joint inslot to support the bottom plate at the up end of installed part 124, improve the steadiness of bottom plate.

Optionally, the light emitting member includes a base plate and an LED lamp, and the LED lamp is fixed on the base plate. The lower terminal surface of bottom plate supports the up end at the installation department, and the side of bottom plate is spacing in the joint inslot.

Optionally, the light-transmitting member 131 is arc-shaped, two sides of the light-transmitting member 131 are provided with two side plates horizontally arranged, and the two side plates extend to the outer side of the light-transmitting member 131. Two sideboard joints are in the joint inslot, and with bottom plate and LED lamp centre gripping between sideboard and installed part 124, prevent that the bottom plate from rocking.

Specifically, the cross section of the outer side wall surface of the light-transmitting member 131 is two arcs symmetrically arranged, light emitted by the LED lamp forms light beams which are respectively diffused to two sides by the two arc-shaped surfaces after passing through the light-transmitting member 131, and the two groups of light beams are reflected to the hospital bed by the first reflector. The arrangement method of dividing the light into two beams and reflecting the two beams is convenient for limiting the size of the beam angle so as to prevent the influence on other people in the same ward while meeting the reading requirement of a patient.

In some embodiments, the inner sidewalls of the first reflector 100 and the second reflector 200 are provided with a matte coating. One sides of the first reflector 100 and the second reflector 200 close to the light source assembly are light reflecting surfaces, and the light reflecting surfaces are arc-shaped. The light reflecting surface is coated with a matte coating to homogenize light spots and eliminate yellow spots.

Specifically, as shown in fig. 8, the second reflector 200 has two arc-shaped inner sidewalls symmetrically disposed, and the curvature radius of the arc-shaped inner sidewalls gradually decreases from a side close to the second light source assembly to a side far away from the second light source assembly. Two arc inside walls that second reflector 200 symmetry set up are the reflection of light face, and the camber radius of this arc inside wall constantly reduces to a distance from a side that is close to second light source subassembly for accompany the beam angle that the lamps and lanterns body formed with control.

Optionally, an intermediate bearing plate 201 is arranged between the two arc-shaped light reflecting surfaces, and the intermediate bearing plate 201 is horizontally arranged and connected to the two arc-shaped light reflecting surfaces.

Optionally, the second reflecting shade 200 includes two arc plates and a middle receiving plate 201, the two arc plates are respectively located at two sides of the middle receiving plate 201, and the two arc plates are respectively located above the two second light source assemblies. Two arcs all are equipped with curved inside wall, and two curved inside walls are the plane of reflection of light. The middle bearing plate 201 is located above the supporting frame 210, and the middle bearing plate 201 is provided with a mounting hole for bolt connection. The middle bearing plate 201 is a horizontal plate part and is used for enhancing the connection effect of the two arc-shaped plates and providing a mounting surface.

In some embodiments, the inner sidewall of the first reflecting cover 100 has a plurality of arc-shaped reflecting surfaces, and the rotating member 120 has a plurality of first light source assemblies 130 disposed corresponding to the arc-shaped reflecting surfaces. Referring to fig. 5, a plurality of arc-shaped light-reflecting surfaces are disposed on the inner side wall of the first reflector 100 to enhance the light-reflecting effect, and a first light source assembly 130 is correspondingly disposed below each arc-shaped light-reflecting surface; a plurality of arc reflection of light face all have the radian along 100 width direction of first reflector and 100 length direction's of first reflector radian, and the arc reflection of light face is used for controlling the beam angle along 100 width direction's of first reflector, and the radian of arc reflection of light face along 100 length direction of first reflector is used for strengthening each first light source subassembly 130 along the ascending diffuse reflection of length direction, improves illumination effect, makes light softer. The light-transmitting piece 131 is one, the length of the light-transmitting piece 131 is consistent with that of the mounting piece 124, the light-transmitting piece 131 covers the upper portions of the first light source assemblies 130, the two sides of the light-transmitting piece 131 are clamped in the clamping grooves, and the first light source assemblies 130 are limited in the mounting portion.

Referring to fig. 5, the first reflective cover 100 is sleeved outside the rotating member 120, and end plates are disposed at two ends of the first reflective cover 100; the end plates are each provided with a through hole 110, and the rotating shaft sequentially penetrates through the through hole 110 of the end plate and the rotating shaft sleeve 121 on the rotating member 120 to fix the rotating member 120 inside the first reflector 100.

Referring to fig. 1 and 8, the lighting device with adjustable lighting angle further includes an outer frame 140, and the outer frame 140 is disposed around the first reflector 100 and the second reflector 200 for protecting the first reflector 100 and the second reflector 200 from deformation or damage.

Optionally, the lighting device with adjustable lighting angle provided by the invention can be connected with lighting equipment with other functions by means of the outer frame 140, so that lamps with different functions can better play the functions, the lamps can be adjusted conveniently, and the convenience in use is increased.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.