阅读说明：本技术 一种双板液压支顶式地下车库防倒灌装置 (Double-plate hydraulic support type underground garage backflow prevention device ) 是由 王建秀 苏雨馨 于 2021-08-23 设计创作，主要内容包括：本发明属于防洪工程技术领域,具体涉及一种双板液压支顶式地下车库防倒灌装置,包括挡水板组、支撑骨架、液压装置和斜支撑；挡水板组包括内挡水板和外挡水板,分别铰接于支撑骨架两端；支撑骨架埋设于地下,用于支撑挡水板组；液压装置设于挡水板组下,用于翻起挡水板组,并调节角度；斜支撑设置于外挡水板与支撑骨架之间,用于在外挡水板翻起时提供辅助支撑。与现有技术相比,本发明可以在没有发生暴雨和/或洪水时与地面保持平整,作为车道使用,而在暴雨和/或洪水来临时,可以通过液压装置翻起挡水板组,并根据实际情况改变翻起角度和高度以及添设斜支撑的数量,有效实现了地下车库的防洪防倒灌,保证地下车库的安全。(The invention belongs to the technical field of flood control engineering, and particularly relates to a double-plate hydraulic support type anti-backflow device for an underground garage, which comprises a water baffle group, a support framework, a hydraulic device and an inclined support; the water baffle group comprises an inner water baffle and an outer water baffle which are respectively hinged at two ends of the supporting framework; the supporting framework is buried underground and used for supporting the water baffle group; the hydraulic device is arranged below the water baffle group and used for turning up the water baffle group and adjusting the angle; the inclined support is arranged between the outer water baffle and the support framework and used for providing auxiliary support when the outer water baffle is turned up. Compared with the prior art, the invention can keep level with the ground when no rainstorm and/or flood occurs and can be used as a lane, and when the rainstorm and/or flood occurs, the water baffle plate group can be turned up through the hydraulic device, the turning-up angle and height can be changed according to the actual situation, and the number of the added inclined supports can be changed, thereby effectively realizing the flood control and backflow prevention of the underground garage and ensuring the safety of the underground garage.)

1. A double-plate hydraulic prop type anti-backflow device for an underground garage is characterized by comprising a water baffle group, a support framework, a hydraulic device (5) and an inclined support (6);

the water baffle group comprises an inner water baffle (1) and an outer water baffle (2) which are respectively hinged at two ends of the support framework;

the supporting framework is buried underground and used for supporting the water baffle group;

the hydraulic device (5) is arranged below the water baffle group and used for turning up the water baffle group and adjusting the angle;

the inclined support (6) is arranged between the outer water baffle (2) and the support framework and is used for providing auxiliary support when the outer water baffle (2) is turned up;

when rainstorm and/or flood do not occur, the water baffle group is in a horizontal state, the outer water baffle (1) is arranged on the inner water baffle (2) and is level with the ground to be used as a lane (12); when taking place torrential rain and/or flood, outer fender (2) and interior fender (1) are turned up in proper order in hydraulic means (5) to keep off fender (1) butt in outer fender (2) lower surface in making, in order to provide the support, and through setting up bearing diagonal (6), outer fender (2) of supplementary support, the supporting framework is for preventing that the device of flowing backward provides the counter-force, prevent that the device from being washed down, washed away by the flood.

2. The double-plate hydraulic support-type underground garage backflow preventing device as claimed in claim 1, further comprising a plurality of first clamping ribs (10) arranged on the support framework, wherein the cross sections of the first clamping ribs (10) are triangular, and the first clamping ribs (10) are as long as the width of the lane (12); the inclined support (6) is arranged below the outer water baffle (2), one end of the inclined support props against the lower surface of the outer water baffle (2), and the other end of the inclined support props against an inclined plane of the first clamping edge (10) and is used for providing auxiliary support when the outer water baffle (2) is turned up.

3. The double-plate hydraulic support-type underground garage backflow preventing device as claimed in claim 1, wherein a second clamping edge (13) fixed on the lower surface of the inner water baffle (1) is arranged at the position where the inner water baffle (1) supports the outer water baffle (2) and is used for assisting in supporting the inner water baffle (1).

4. The double-plate hydraulic support-top type underground garage anti-backflow device as claimed in claim 1, wherein the hydraulic device (5) is arranged at the lower parts of the two sides of the outer water baffle (2) and the inner water baffle (1) far away from the hinged end, and is used for supporting and turning up the water baffle group in a labor-saving manner and adjusting the angle of the water baffle group to a proper position.

5. The double-plate hydraulic support-top type underground garage backflow preventing device as claimed in claim 4, wherein the lower surfaces of the outer water baffle (2) and the inner water baffle (1) are provided with guide rails (9) along the width direction thereof for being matched with the hydraulic device (5) during supporting so as to prevent the hydraulic device (5) from being supported askew.

6. The double-plate hydraulic support-top type underground garage backflow preventing device as claimed in claim 1, wherein the backflow preventing device further comprises a drainage pump (7), and the drainage pump (7) is arranged in a space formed by turning up the outer water baffle (2) and the inner water baffle (1) and used for draining accumulated water flowing in through gaps.

7. The double-plate hydraulic support-top type underground garage backflow preventing device as claimed in claim 1, wherein the length of the outer water baffle (2) and the length of the inner water baffle (1) are equal to the width of the lane (12).

8. The double-plate hydraulic support-top type underground garage backflow preventing device of claim 7, wherein the inner water baffle (1) is partially exposed out of the outer water baffle (2), and the upper surfaces of the outer water baffle (2) and the inner water baffle (1) are provided with deceleration strips (8) for increasing friction force for passing vehicles when no rainstorm and/or flood occurs.

9. The double-plate hydraulic support-top type anti-backflow device for the underground garage of claim 1, wherein the support framework comprises an underground horizontal buried steel pipe framework (3) and an underground vertical buried steel pipe framework (4); two ends of the underground horizontal buried steel pipe framework (3) are respectively hinged with the inner water baffle (1) and the outer water baffle (2), and the lower part of the underground horizontal buried steel pipe framework is fixedly connected with the underground vertical buried steel pipe framework (4); the vertical buried steel pipe skeleton (4) of underground upper end and the horizontal buried steel pipe skeleton (3) of underground buried fixed connection, the lower extreme extends to the underground.

10. The double-plate hydraulic support-top type underground garage backflow prevention device as claimed in claim 1, further comprising an electric control system, wherein the electric control system is electrically connected with the hydraulic device (5) and the drainage pump (7) respectively, and is used for automatically controlling and operating the backflow prevention device when rainstorm and/or flood occurs.

Technical Field

The invention belongs to the technical field of flood control engineering, and particularly relates to a double-plate hydraulic support type anti-backflow device for an underground garage.

Background

Recently, rainstorm flood causes the underground garage to flow backwards, and heavy vehicle loss is caused. However, most of the existing flood control methods adopted by underground garages are self-provided sandbags, and when flooding possibly occurs, the sandbags are piled up at an entrance to resist the possible flood. The method has low automation degree, when the water pressure is high and the water flow is fast, the water flow can not be resisted sometimes, so that the open water is filled in a large amount, and the internal water pump can not drain the water in time, so that the vehicle is flooded and damaged, and even casualties can be caused.

Chinese patent CN107366347A discloses a drainage system for underground passage with flood and irrigation preventing functions, which is characterized in that a groove is dug on the ground at the entrance of the underground passage, a pedal protective cover and a vertical support are arranged outside the groove, a secondary flood and irrigation preventing device is arranged in the groove, a water permeable protective cover is arranged on the upper portion of the secondary flood and irrigation preventing device, a rainwater filtering layer is arranged on the lower portion of the secondary flood and irrigation preventing device, the side wall is a rigid side wall water baffle, and a certain space is arranged between the lower portion of the secondary flood and irrigation preventing device and the bottom of the groove and is connected with a water inlet of a sewer. When heavy rain comes, rainwater enters the drainage system from the water-permeable protective cover, the water level in the groove rises, the secondary flooding and backflow prevention device rises simultaneously by utilizing buoyancy, and the connecting line on the water-permeable protective cover drives the backflow prevention water-stop sheet to be gradually closed. However, the patent can only deal with the backflow prevention of larger water flow in a short time, and cannot deal with the flooding and the backflow of sudden large water flow such as flood.

Chinese patent CN213448747U discloses a rainwater backflow prevention device for underground garage, which comprises a tank body, wherein a drain pipe is fixed at the bottom end of the tank body, the drain pipe is communicated with the inside of the tank body, a cover plate is attached to the top surface of the tank body, and a sealing gasket is fixedly arranged at the attachment position of the cover plate and the top surface of the tank body. Through the setting of fan-shaped box, can rotate fan-shaped box 90 corners through electric telescopic handle for fan-shaped box blocks underground parking garage entrance, can effectually prevent external rainwater inflow underground parking like this. However, the fan-shaped height of the patent is fixed during manufacturing, and only accumulated water below the fan-shaped height can be blocked from entering an underground garage.

Disclosure of Invention

The invention aims to provide a double-plate hydraulic support top type anti-backflow device for an underground garage. The angle of the water baffle can be adjusted according to the flood amount, the flood control height of the waterproof plate is changed, and the underground garage can effectively prevent backflow; and when the garage is not used, the garage is kept level with the ground, and the normal use of the underground garage is not influenced.

The purpose of the invention is realized by the following technical scheme:

a double-plate hydraulic prop type anti-backflow device for an underground garage comprises a water baffle group, a support framework, a hydraulic device and an inclined support;

the water baffle group comprises an inner water baffle and an outer water baffle which are respectively hinged at two ends of the support framework;

the supporting framework is buried underground and used for supporting the water baffle group;

the hydraulic device is arranged below the water baffle group and used for turning up the water baffle group and adjusting the angle;

the inclined support is arranged between the outer water baffle and the support framework and is used for providing auxiliary support when the outer water baffle is turned up;

when rainstorm and/or flood do not occur, the water baffle group is in a horizontal state, and the outer water baffle is arranged on the inner water baffle, is level with the ground and is used as a lane; when taking place torrential rain and/or flood, hydraulic means turns up outer water baffle and interior water baffle in proper order to make interior water baffle butt in outer water baffle lower surface, in order to provide the support, and through setting up the bearing diagonal, the outer water baffle of auxiliary stay, the braced frame provides the counter-force for preventing flowing backward the device, prevents that the device from being washed down, washed away by the flood.

Preferably, the backflow prevention device further comprises a plurality of first clamping edges arranged on the support framework, the cross sections of the first clamping edges are triangular, and the first clamping edges are as long as the lane width; the inclined support is arranged below the outer water baffle, one end of the inclined support props against the lower surface of the outer water baffle, and the other end of the inclined support props against the inclined surface of the first clamping edge, so that auxiliary support is provided when the outer water baffle is turned up.

Preferably, the inner water deflector supports the outer water deflector and is provided with a second clamping edge fixed on the lower surface of the inner water deflector, so as to provide friction resistance when supporting, prevent the inner water deflector from sliding and assist the support of the inner water deflector.

Preferably, the hydraulic device is arranged at the lower parts of two sides of the outer water baffle and the inner water baffle far away from the hinged end and is used for supporting and turning up the water baffle group in a labor-saving manner and adjusting the angle of the water baffle group to a proper position.

Preferably, the lower surface both sides of outer water baffle and interior water baffle seted up the guide rail along its width direction for cooperate with hydraulic means when supporting, prevent that hydraulic means supports crooked.

Preferably, the backflow prevention device further comprises a drainage pump, wherein the drainage pump is arranged in a space formed by turning up the outer water baffle and the inner water baffle and used for draining accumulated water flowing in through the gap when the water amount is too large.

Preferably, the length of the outer water baffle and the length of the inner water baffle are equal to the width of the lane.

Preferably, the baffle plate group is made of thick steel plates and is used for providing strong enough flood resistance.

Preferably, the inner water baffle is partially exposed out of the outer water baffle, and deceleration strips are arranged on the upper surface of the outer water baffle and the upper surface of the part of the inner water baffle exposed out of the outer water baffle and used for increasing friction force for passing vehicles when rainstorm and/or flood does not occur.

Preferably, the support framework comprises an underground horizontal buried steel pipe framework and an underground vertical buried steel pipe framework; two ends of the underground horizontal buried steel pipe framework are respectively hinged with the inner water baffle and the outer water baffle, and the lower part of the underground horizontal buried steel pipe framework is fixedly connected with the underground vertical buried steel pipe framework; the underground vertical buried steel pipe framework is fixedly connected with the underground horizontal buried steel pipe framework at the upper end, extends towards the underground at the lower end, and can determine the buried depth according to the local stratum conditions.

Preferably, the underground horizontal buried steel pipe framework is provided with a group, wherein the group comprises two steel pipes, the length of the group is equal to the sum of the widths of the inner water baffle and the outer water baffle, and the distance between the two steel pipes is equal to the length of the water baffle group; the underground vertical buried steel pipe framework is provided with a group of four steel pipes, the transverse distance between the steel pipes is equal to the length of the water baffle group, and the longitudinal distance is equal to the sum of the widths of the inner water baffle and the outer water baffle.

Preferably, the anti-backflow device further comprises an electric control system, wherein the electric control system is respectively electrically connected with the hydraulic device and the drainage pump and is used for automatically controlling and operating the anti-backflow device when rainstorm and/or flood occurs.

The working principle of the invention is as follows:

the anti-backflow device is arranged at an entrance of the underground garage, the supporting framework is buried underground, and the buried depth is determined according to actual geology and surrounding environment conditions.

In the future of rainstorm and flood, the water baffle group is hinged and installed on a support framework steel structure frame buried in the dark, the outer water baffle is arranged on the upper portion, the inner water baffle is arranged on the lower portion, the outer water baffle and the inner water baffle are overlapped together and are equal to the ground and serve as lanes, and the deceleration strip is arranged on the upper portion of the water baffle group and increases friction force when a vehicle enters an underground garage. The hydraulic devices are respectively arranged at the lower parts of two sides of the free end of the water baffle group far away from the hinged part.

When rainstorm and/or flood may occur, the outer water baffle can be firstly turned up through a manual or electric control system by utilizing the hydraulic device, and the support head of the hydraulic device is arranged in the guide rail on the lower surface of the outer water baffle to prevent the hydraulic device from supporting and inclining. An inclined support steel pipe is arranged below the outer water baffle, one end of the inclined support steel pipe abuts against the lower surface of the outer water baffle, and the other end of the inclined support steel pipe abuts against the inclined surface of the first clamping ridge arranged on the support framework and is used for auxiliary support. And determining the turning-up angle and height of the outer water baffle and the position of the first clamping edge pressed by the inclined support according to the actual required waterproof height. The inner water baffle is turned up along the hinged part by the hydraulic device and is abutted against the lower surface of the outer water baffle to support the outer water baffle, the lower surface of the free end of the inner water baffle is provided with a second clamping edge and is synchronously abutted against the lower surface of the outer water baffle, friction force can be enhanced, the inner water baffle is prevented from sliding, support is further provided, and the lower surface of the inner water baffle is also provided with a guide rail for preventing the hydraulic device from supporting the skew guide rail. In order to further reinforce the supporting strength of the backflow prevention device, an inclined support can be continuously arranged between the outer water baffle and the clamping edge. After the water baffle group is turned up, a small amount of accumulated water flows into the gap, and after the accumulated water is lifted to a certain height, the drainage pump arranged below the water baffle group starts to work to discharge the accumulated water.

After the flood is withdrawn, the inclined struts are removed, and the inner water baffle and the outer water baffle are put down in sequence to recover into a lane.

Compared with the prior art, the invention has the following beneficial effects:

1. through articulating in the establishment of the breakwater group of supporting the skeleton, can keep leveling with ground when not having the flood, use as the lane, and come temporarily at the flood, can turn up breakwater group through hydraulic means to change according to actual conditions and turn up angle and height and add the quantity of establishing the bearing diagonal, effectively realized that the flood control of underground garage prevents flowing backward, guarantee underground garage's safety.

2. Set up the drain pump through breakwater group below, can discharge the ponding by seepage in the gap, further guaranteed the stability of system and the realization of flood control anti-backflow effect.

3. The anti-backflow device can be manually controlled and can also be automatically controlled, and the device can be started to be used under both conventional conditions and emergency conditions.

4. The anti-backflow device has great significance for improving the automation degree of the anti-backflow method of the underground garage and ensuring the safety of the underground garage.

Drawings

FIG. 1 is a schematic view of the installation of the anti-backup device of the present invention when not in use;

FIG. 2 is a schematic top view of the backflow prevention device of the present invention when not in use;

FIG. 3 is a perspective view of the backflow prevention device of the present invention when not in use;

FIG. 4 is a schematic structural view of the backflow prevention device of the present invention;

FIG. 5 is a schematic top view of the backflow prevention device of the present invention;

in the figure: 1-inner water baffle; 2-outer water baffle; 3-burying a steel pipe framework horizontally and underground; 4-underground vertical buried steel pipe skeleton; 5-a hydraulic device; 6-inclined support; 7-draining pump; 8-a speed bump; 9-a guide rail; 10-a first clamping edge; 11-sandbags; 12-lane, 13-second stick edge.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

Example 1

A double-plate hydraulic prop type anti-backflow device for an underground garage is shown in figures 1-4 and comprises a water baffle group, a support framework, a hydraulic device 5 and an inclined support 6; the water baffle group comprises an inner water baffle 1 and an outer water baffle 2 which are respectively hinged at two ends of the supporting framework; the supporting framework is buried underground and used for supporting the water baffle group and providing counter force for the water baffle group; the hydraulic device 5 is arranged below the water baffle group and used for turning up the water baffle group and adjusting the angle; the inclined support 6 is arranged between the outer water baffle 2 and the support framework and is used for providing auxiliary support when the outer water baffle 2 is turned up;

when rainstorm and/or flood (the anti-backflow device is not used), the water baffle group is in a horizontal state, and the outer water baffle 2 is arranged on the inner water baffle 1, is level with the ground and is used as a lane 12; when taking place the flood, hydraulic means 5 turns up outer water baffle 2 and interior water baffle 1 in proper order to make 1 butt of interior water baffle in 2 lower surfaces of outer water baffle, in order to provide the support, and through setting up bearing diagonal 6, the outer water baffle 2 of supplementary support, support the skeleton and for preventing that the device from flowing backward provides the counter-force, prevent that the device from being washed down, washed away by the flood.

Further, in the present embodiment:

the breakwater group all adopts the steel plate to make to provide strong enough flood resistance ability, and outer breakwater 2 equals with interior breakwater 1 length and lane 12 width, can prevent flood and prevent flowing backward to whole lane 12, is used for the outside open water of separation when the flood comes. The inner water baffle 1 is partially exposed out of the outer water baffle 2, and the deceleration strips are arranged on the upper surface of the outer water baffle 2 and the upper surface of the part of the inner water baffle 1 exposed out of the outer water baffle 2, so that the friction force of passing vehicles can be increased when the anti-backflow device is not used (namely, when the water baffle group is level with the ground).

In the embodiment, the supporting framework comprises an underground horizontal buried steel pipe framework 3 and an underground vertical buried steel pipe framework 4; underground level secretly buries steel pipe skeleton 3 and is a set of, contains two steel pipes, and the steel pipe is parallel to each other, and both ends are articulated with interior water baffle 1 and outer water baffle 2 respectively, and steel pipe length equals the width sum of interior water baffle 1 and outer water baffle 2, and its interval equals with the length of breakwater group for provide the counter-force for preventing flowing backward the device. The upper end of the underground vertical buried steel pipe framework 4 is fixedly connected with the lower part of the underground horizontal buried steel pipe framework 3, the lower end of the underground vertical buried steel pipe framework extends towards the underground, the buried depth can be determined according to the local stratum conditions, and the counter force is provided for the anti-backflow device. The underground vertical buried steel pipe frameworks 4 are also in a group and comprise four steel pipes, the transverse distance between the steel pipes is equal to the length of the water baffle group, and the longitudinal distance is equal to the sum of the widths of the inner water baffle 1 and the outer water baffle 2.

In this embodiment, a plurality of first blocking ridges 10 are spanned on the mutually parallel underground horizontal buried steel pipe framework 3, the cross sections of the first blocking ridges 10 are triangular, the width of the first blocking ridges 10 is equal to that of the lane 12, the inclined support 6 is arranged between the outer water baffle 2 and the first blocking ridges 10, one end of the inclined support abuts against the outer water baffle 2, and the other end of the inclined support abuts against the first blocking ridges 10, so that auxiliary support is provided for the outer water baffle 2.

In this embodiment, a second clamping edge 13 with a square cross section is fixed on the lower surface of the free end of the inner water baffle 1 (i.e. the position where the second clamping edge abuts against the outer water baffle 2), and the second clamping edge also abuts against the outer water baffle 2, so as to provide a larger frictional resistance, prevent the inner water baffle 1 from sliding away, and further provide an auxiliary support.

In this embodiment, the plurality of hydraulic devices 5 are disposed below the two sides of the free ends of the outer water baffle 2 and the inner water baffle 1, so that the force arm can be increased, the water baffle group can be supported and turned up more laborsavingly, and the angle of the water baffle group can be adjusted to a proper position. The guide rails 9 are arranged on two sides of the lower surfaces of the outer water baffle 2 and the inner water baffle 1 along the width direction of the lower surfaces, and are used for being matched with the hydraulic device 5 when in supporting, so that the supporting head of the hydraulic device 5 is arranged in the guide rails and can move along the direction of the guide rails 9, and the hydraulic device 5 is prevented from being supported and inclined.

In this embodiment, a drain pump 7 is further disposed below the water baffle group, and the drain pump can be opened to drain accumulated water after accumulated water flowing in through the gap reaches a certain height.

In this embodiment, the anti-backflow device is further externally connected with an electric control system (not shown in the figure), the electric control system is electrically connected with the hydraulic device 5 and the drainage pump 7, and the anti-backflow device is automatically started when the detector detects the occurrence of flood. When the electric control system cannot automatically start the device, the system can be unfolded manually to prevent flood and prevent backflow.

As shown in fig. 5, when multiple sets of devices are installed on multiple lanes 12, waterproof sandbags 11 need to be added to gaps between the devices and the garage walls, the sandbags 11 should be placed on the side where flood water comes, and the sandbags are provided with drainage pumps 7 to pump water outwards, so that the inflow of water flow is resisted by two separation barriers and the supporting effect of the two separation barriers.

The working principle of the invention is as follows:

the anti-backflow device is arranged at an entrance of the underground garage, the supporting framework is buried underground, and the buried depth is determined according to actual geology and surrounding environment conditions.

In the future of rainstorm and flood, the water baffle group is hinged and installed on a support framework steel structure frame buried in the dark, the outer water baffle 2 is arranged on the upper portion, the inner water baffle 1 is arranged on the lower portion, the outer water baffle and the inner water baffle are overlapped together and are equal to the ground and serve as a lane 12, and the deceleration strip 8 is arranged on the upper portion of the water baffle group and is used for increasing friction force when a vehicle enters an underground garage. The hydraulic devices 5 are respectively arranged at the lower parts of two sides of the free end of the water baffle group far away from the hinged part.

When flood is likely to occur, the outer water baffle 2 can be firstly turned up by the hydraulic device 5 through a manual or electric control system, and the supporting head of the hydraulic device 5 is arranged in the guide rail 9 on the lower surface of the outer water baffle 2 to prevent the hydraulic device 5 from supporting and inclining. An inclined support 6 steel pipe is arranged below the outer water baffle 2, one end of the steel pipe props against the lower surface of the outer water baffle 2, and the other end of the steel pipe props against an inclined plane of a first clamping edge 10 arranged on the support framework and used for auxiliary support. The angle and height of the outer water baffle 2 and the position of the first clamping edge 10 against which the inclined support 6 is pressed are determined according to the actual required waterproof height. The water baffle 1 in rethread hydraulic means 5 turns up along articulated department, supports the lower surface at outer water baffle 2, for outer water baffle 2 provides the support, and 1 free end lower surface of interior water baffle is provided with second card arris 13, supports outer water baffle 2 lower surface in step, can strengthen frictional force, prevents that interior water baffle 1 from slipping to further provide the support, and the lower surface of interior water baffle 1 still is equipped with and prevents that hydraulic means 5 from supporting crooked guide rail 9. In order to further reinforce the supporting strength of the backflow prevention device, an inclined support 6 may be further added between the outer water baffle 2 and the first clamping edge 10. After the water baffle group is turned up, a small amount of accumulated water flows into the gap, and after the accumulated water is lifted to a certain height, the drainage pump 7 arranged below the water baffle group starts to work to discharge the accumulated water.

After the flood is withdrawn, the diagonal braces 6 are removed, and the inner water baffle 1 and the outer water baffle 2 are sequentially put down to return to the lane 12.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.