阅读说明：本技术 设备装载机构、锚泊系统及设备装载机构的使用方法 (Equipment loading mechanism, anchoring system and use method of equipment loading mechanism ) 是由 刘若鹏 栾琳 许世宽 曹鹏 王慧元 于 2018-09-12 设计创作，主要内容包括：本发明提供了一种设备装载机构、锚泊系统及设备装载机构的使用方法。其中,设备装载机构包括：承载体；支撑组件,支撑组件设置在承载体下方,用于支撑承载体并调节承载体的竖直方向位置；且承载体与支撑组件之间形成有容纳装载体的容纳空间；至少一个提升组件,承载体通过提升组件与装载体连接,通过提升组件调整承载体与装载体之间的距离以吊装装载体,装载体在重力作用下与承载体对正。本发明解决了现有技术中的设备装车时轴孔对齐困难的问题。(The invention provides a device loading mechanism, an anchoring system and a using method of the device loading mechanism. Wherein, equipment loading mechanism includes: a carrier; the supporting component is arranged below the bearing body and used for supporting the bearing body and adjusting the vertical position of the bearing body; and an accommodating space for accommodating the loading carrier is formed between the bearing body and the supporting component; the bearing body is connected with the loading body through the lifting assembly, the distance between the bearing body and the loading body is adjusted through the lifting assembly to hoist the loading body, and the loading body is aligned with the bearing body under the action of gravity. The invention solves the problem that the shaft holes are difficult to align when the equipment in the prior art is loaded.)

1. A tool load mechanism, comprising:

a carrier (10);

a support assembly (20) disposed below the carrier body (10) for supporting the carrier body (10) and adjusting a vertical position of the carrier body (10); a containing space for containing a loading body (30) is formed between the bearing body (10) and the supporting component (20);

at least one lifting assembly (40), the supporting body (10) pass through the lifting assembly (40) with the loading body (30) is connected, through the lifting assembly (40) adjust the distance between supporting body (10) and loading body (30) in order to hoist loading body (30), loading body (30) under the action of gravity with supporting body (10) is aligned.

2. The equipment loading mechanism according to claim 1, wherein the hoisting height of the lifting assembly (40) is adjusted by changing the vertical distance between the top end and the bottom end of the lifting assembly (40) to hoist the load carrier (30).

3. The equipment loading mechanism of claim 2, wherein the lift assembly (40) comprises:

a lifting part for adjusting the hoisting height of the lifting assembly (40), wherein one end of the lifting part is movably connected with the bearing body (10);

the connecting part (41), the connecting part (41) is connected with one end of the lifting part far away from the bearing body (10), and the connecting part (41) is connected with the loading body (30).

4. The tool loading mechanism of claim 3, wherein the lifting portion comprises:

the driving part (42) is connected with the bearing body (10) through a joint bearing, and when the lifting assembly (40) is multiple, the driving parts (42) of the lifting parts of different lifting assemblies (40) are controlled independently;

the telescopic rod (43), telescopic rod (43) with driving piece (42) sliding connection, just telescopic rod (43) can stretch out or retract in driving piece (42), telescopic rod (43) are kept away from the one end of driving piece (42) is provided with connecting portion (41), through driving piece (42) drive telescopic rod (43) move, so that loading body (30) upward movement.

5. The equipment loading mechanism according to any of claims 1 to 4, wherein the support assembly (20) comprises a plurality of support bars arranged at the corners of the carrier (10) to support the carrier (10).

6. A device loading mechanism according to any of claims 1 to 4, further comprising a locking assembly provided on the carrier (30) and/or the carrier (10) to lock between the carrier (10) and the carrier (30) when the carrier (30) is raised to contact the carrier (10).

7. The device loading mechanism of claim 6, wherein the locking assembly comprises:

positioning pins which are arranged on the bearing body (10) and extend out towards the direction of the bearing body (30);

the positioning holes are arranged on the loading body (30) and correspond to the positioning pins one by one, and each positioning hole is provided with a stop structure;

the locking part is arranged at one end, extending into the positioning hole, of the positioning pin and is in stop fit with the stop structure, so that the positioning pin is locked in the positioning hole, and the loading body (30) and the bearing body (10) are locked.

8. The equipment loading mechanism according to claim 1, wherein the lifting assembly (40) is movably connected to the carrier (10), and an included angle is formed between the lifting assembly (40) and a vertical direction, and the included angle is greater than or equal to 10 degrees and less than or equal to 30 degrees.

9. The device loading mechanism according to claim 4, wherein the load carrier (30) has a stop formation cooperating with the connecting portion (41), the connecting portion (41) abutting the stop formation after connection with the load carrier (30) to connect the lifting assembly (40) with the load carrier (30).

10. A device loading mechanism according to claim 9, wherein the outer edge of the connecting portion (41) has a projecting arm which engages with the stop formation.

11. A mooring system comprising a tool-loading mechanism as defined in any one of claims 1 to 8.

12. The mechanism of claim 10, wherein the outer edge of the connecting portion (41) of the lifting assembly (40) of the mechanism has a protruding arm, the carrier (30) has a limiting structure, the limiting structure comprises a through hole arranged on the carrier (30) and a plurality of stopping arms protruding towards the center of the through hole, the connecting portion (41) rotates a certain angle after protruding into the through hole, and the protruding arm stops below the stopping arms so that the connecting portion (41) is connected with the carrier (30).

13. A method of using a tool load mechanism, wherein the tool load mechanism of any one of claims 1 to 10 is used, the method comprising:

step S1: moving at least a portion of a load carrier (30) into a receiving space formed by a carrier (10) of the tool loading mechanism;

step S2: connecting a lifting assembly (40) of the tool loading mechanism to the load carrier (30);

step S3: the lifting assembly (40) is driven to act, the lifting assembly (40) drives the loading body (30) to move upwards, and in the moving process of the loading body (30), the loading body (30) is automatically aligned with the bearing body (10) under the action of gravity.

14. The use method according to claim 13, wherein the step S2 includes:

step S21: changing an included angle between the lifting assembly (40) and the vertical direction to adjust the angle between the lifting assembly (40) and the vertical direction, so that the connecting part (41) of the lifting assembly (40) is aligned with the through hole of the loading body (30);

step S22: and rotating the connecting part (41) by a certain angle after the connecting part passes through the through hole, so that the extending arm of the connecting part (41) is positioned below the stopping arm of the through hole.

15. The method of use of claim 13, further comprising:

step S4: during the upward movement of the loading body (30), a positioning pin of a locking assembly of the equipment loading mechanism extends into a positioning hole of the locking assembly, and the lifting assembly (40) is controlled to stop when the loading body (30) contacts the bearing body (10);

step S5: locking the positioning pin in the positioning hole through a locking part of the locking assembly so as to lock the loading body (30) and the bearing body (10);

step S6: changing the hoisting height of the support assembly (20) of the equipment loading mechanism so that the loading body (30) and the bearing body (10) are put down together until the loading body (30) contacts the ground;

step S7: unlocking the locking portion to unlock between the load carrier (30) and the carrier body (10), and detaching the lifting assembly (40) from the load carrier (30).

Technical Field

The invention relates to the technical field of equipment loading and transportation, in particular to an equipment loading mechanism, an anchoring system and a using method of the equipment loading mechanism.

Background

The small anchoring system adopts a mode of separating the transport vehicle from the anchoring frame, is convenient to transport and short in erection time, and greatly improves the flexibility of the captive balloon. The designed loading method comprises the following steps: the boxcar sets up 4 setpoint, can local direction locating pin to 4 on the anchor frame. And stopping the truck under the anchoring frame, aligning the truck with the 4 positioning pin holes, and then putting down the supporting legs of the anchoring frame to finish the loading of the equipment.

However, in practical use, the following results are found: the truck with the load design has a tight tilting tail part under the condition that a truck box is not arranged. The 4-hole planar alignment becomes a 4-hole spatial alignment, resulting in an abnormal alignment difficulty. This problem also occurs when loading other equipment, such as a container into a truck, where the shaft holes are difficult to align when the container is lifted by a crane and dropped onto the truck.

Disclosure of Invention

The invention mainly aims to provide a device loading mechanism, an anchoring system and a using method of the device loading mechanism, so as to solve the problem that in the prior art, when a device is loaded, shaft holes are difficult to align.

To achieve the above object, according to one aspect of the present invention, there is provided an instrument loading mechanism including: a carrier; the supporting component is arranged below the bearing body and used for supporting the bearing body and adjusting the vertical position of the bearing body; and an accommodating space for accommodating the loading carrier is formed between the bearing body and the supporting component; the bearing body is connected with the loading body through the lifting assembly, the distance between the bearing body and the loading body is adjusted through the lifting assembly to hoist the loading body, and the loading body is aligned with the bearing body under the action of gravity.

Further, the hoisting height of the hoisting assembly is adjusted by changing the vertical distance between the top end and the bottom end of the hoisting assembly to hoist the load carrier.

Further, the lift assembly includes: the lifting part is used for adjusting the lifting height of the lifting assembly, and one end of the lifting part is movably connected with the bearing body; the connecting part is connected with one end of the lifting part far away from the bearing body and is connected with the loading body.

Further, the lifting portion includes: the driving parts are connected with the bearing body through joint bearings, and when the lifting assemblies are multiple, the driving parts of the lifting parts of different lifting assemblies are controlled independently; the telescopic link, telescopic link and driving piece sliding connection, and in the telescopic link can stretch out or retract the driving piece, the one end that the driving piece was kept away from to the telescopic link is provided with connecting portion, drives the telescopic link motion through the driving piece to the messenger loads the body upward movement.

Further, the supporting component comprises a plurality of supporting rods, and the supporting rods are arranged at the corners of the supporting body to support the supporting body.

Further, the tool loading mechanism further comprises a locking assembly disposed on the carrier and/or the carrier to lock between the carrier and the carrier when the carrier is raised into contact with the carrier.

Further, the locking assembly includes: the positioning pin is arranged on the bearing body and extends out towards the direction of the loading body; the positioning holes are arranged on the loading carrier and correspond to the positioning pins one by one, and the positioning holes are provided with stop structures; the locking part is arranged at one end, extending into the positioning hole, of the positioning pin and is matched with the stopping structure in a stopping way so as to lock the positioning pin in the positioning hole, and therefore the loading body and the bearing body are locked.

Furthermore, the lifting assembly is movably connected with the bearing body, an included angle is formed between the lifting assembly and the vertical direction, and the included angle is larger than or equal to 10 degrees and smaller than or equal to 30 degrees.

Furthermore, the loading body is provided with a limiting structure matched with the connecting part, and the connecting part is connected with the loading body and then abutted against the limiting structure, so that the lifting assembly is connected with the loading body.

Further, the outer edge of the connecting part is provided with a protruding arm matched with the limiting structure.

According to another aspect of the present invention there is provided a mooring system comprising a tool-loading mechanism as described above.

Further, the outer edge of the connecting portion of the lifting assembly of the equipment loading mechanism is provided with an extending arm, the loading body is provided with a limiting structure, the limiting structure comprises a via hole formed in the loading body and a plurality of stop arms extending out of the center of the via hole, the connecting portion rotates for a certain angle after extending into the via hole, and the extending arm stops below the stop arms so that the connecting portion is connected with the loading body.

According to another aspect of the present invention, there is provided a method for using a device loading mechanism, using the device loading mechanism, the method comprising: step S1: moving at least a portion of the load carrier into a receiving space defined by a carrier of the tool loading mechanism; step S2: connecting a lifting assembly of the equipment loading mechanism with the loading body; step S3: the lifting component is driven to act, the lifting component drives the loading body to move upwards, and the loading body is automatically aligned with the bearing body under the action of gravity in the movement process of the loading body.

Further, step S2 includes: step S21: changing an included angle between the lifting assembly and the vertical direction to adjust the angle between the lifting assembly and the vertical direction, so that the connecting part of the lifting assembly is aligned with the through hole of the loading body; step S22: and rotating the connecting part at a certain angle after the connecting part passes through the through hole, so that the extending arm of the connecting part is positioned below the stop arm of the through hole.

Further, the using method further comprises the following steps: step S4: in the process of upward movement of the loading body, a positioning pin of a locking assembly of the equipment loading mechanism extends into a positioning hole of the locking assembly, and when the loading body contacts a bearing body, the lifting assembly is controlled to stop; step S5: the positioning pin is locked in the positioning hole through the locking part of the locking assembly, so that the loading body and the bearing body are locked; step S6: changing the hoisting height of a supporting component of the equipment loading mechanism to enable the loading body and the bearing body to be lowered together until the loading body contacts the ground; step S7: the locking part is unlocked to unlock the loading body and the bearing body, and the lifting assembly is detached from the loading body.

By applying the technical scheme of the invention, the lifting assembly is arranged between the bearing body and the loading body, and the loading body is lifted by the lifting assembly, so that the loading body can be automatically aligned with the bearing body in the lifting process under the action of self gravity, and after the bearing body is aligned with the loading body, the bearing body and the loading body are put down together by the supporting assembly, so that the loading body is placed on the ground for subsequent operations such as transportation and the like.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of the tool load mechanism of the present invention;

figure 2 shows a schematic structural view of the mooring system of the present invention; and

figure 3 shows a schematic view of the mooring system of figure 2 in another state.

Wherein the figures include the following reference numerals:

10. a carrier; 20. a support assembly; 30. loading a carrier; 40. a lifting assembly; 41. a connecting portion; 42. a drive member; 43. a telescopic rod.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

The invention provides an equipment loading mechanism, an anchoring system and a using method of the equipment loading mechanism, aiming at solving the problem that in the prior art, the axle holes are difficult to align when equipment is loaded. Wherein the mooring system has a tool-loading mechanism as described below.

A device loading mechanism as shown in fig. 1 and 2, comprising a carrier 10, a support assembly 20 and at least one lifting assembly 40, the support assembly being disposed below the carrier 10 for supporting the carrier 10 and adjusting the vertical position of the carrier 10; and a receiving space for receiving the loading object 30 is formed between the carrier 10 and the supporting member 20; the carrier 10 is connected to the loading body 30 by the lifting assembly 40, the distance between the carrier 10 and the loading body 30 is adjusted by the lifting assembly 40 to hoist the loading body 30, and the loading body 30 is aligned with the carrier 10 under the action of gravity.

In this embodiment, a lifting unit 40 is provided between the carrier 10 and the loading body 30, and the loading body 30 is lifted by the lifting unit 40, so that the carrier 30 can automatically align with the carrier 10 during the ascending process under the action of its own gravity, after the carrier 10 is aligned with the loading body 30, the supporting assembly 20 puts down the carrier 10 and the loading body 30 together, so that the carrier 30 can be placed on the ground for subsequent operations such as transportation, the arrangement described above prevents the carrier 10 from being damaged when placed on the carrier 30, the condition that the alignment cannot be carried out due to the inclination of the loading body 30 is utilized, manual intervention is not needed due to the gravity action of the loading body 10, the operation difficulty of alignment operation is reduced, the loading body 10 can be stably installed on the loading body 30, and meanwhile, the use is convenient and rapid, the labor intensity of installation personnel is reduced, and the safety is high.

In this embodiment, the lifting height of the lifting assembly 40 is adjusted by changing the vertical distance between the top end and the bottom end of the lifting assembly 40, so that the distance between the loading body 30 and the supporting body 10 is adjusted by changing the length of the lifting assembly 40 itself in the vertical direction.

Optionally, the lifting assembly 40 comprises a lifting part and a connecting part 41 for adjusting the hoisting height of the lifting assembly 40, and one end of the lifting part is movably connected with the supporting body 10 to adjust the hoisting height of the lifting part; the connecting portion 41 is connected to an end of the lifting portion away from the carrier 10, and the connecting portion 41 is connected to the loading body 30.

Specifically, the lifting part is a main power part composed of a driving member 42 and an expansion link 43, and the connecting part 41 is a connecting assembly for connecting the lifting part and the loading body 30. The driving member 42 is a driving motor, the driving member 42 is movably connected with the supporting body 10 through a joint bearing, the lower surface of the driving member 42 is not lower than the lower surface of the supporting body 10, the telescopic rod 43 is slidably connected with the driving member 42, the telescopic rod 43 can extend out of or retract into the driving member 42, a connecting portion 41 is arranged at one end of the telescopic rod 43, which is far away from the driving member 42, so as to be detachably connected with the loading body 30, and the driving member 42 drives the telescopic rod 43 to move so as to enable the loading body 30. The driving member 42 of the present embodiment is located above the telescopic rod 43 and is vertically disposed, and the distance between the top end and the bottom end of the lifting assembly 40 is changed along with the movement of the telescopic rod 43.

The lifting assembly 40 may be provided with one or more lifting assemblies 40, and when the lifting assembly 40 is provided with a plurality of lifting assemblies 40, the lifting assemblies 40 are uniformly distributed on the surface of the supporting body 10, and the driving members 42 of the lifting parts of the different lifting assemblies 40 are controlled independently from each other, so as to ensure the stable lifting of the supporting body 30.

It should be noted that the lifting assembly 40 is movably connected with the supporting body 10 through a joint bearing, and an included angle is formed between the lifting assembly 40 and the vertical direction, and the included angle is greater than or equal to 10 degrees and less than or equal to 30 degrees. Like this, when loading body 30 moved to accommodation space, loading body 30 on the limit structure only need with connecting portion 41 roughly align can, follow-up can make connecting portion 41 still can be connected with limit structure through adjusting lifting assembly 40 to the operation degree of difficulty that has reduced loading body 30 has improved the installation effectiveness.

In this embodiment, the connecting portion 41 is a hanging lug disposed at an end of the lifting rod away from the driving member 42, the outer edge of the side wall of the hanging lug has a plurality of protruding arms extending in a direction away from the center line, each protruding arm is disposed along the circumferential direction of the hanging lug at intervals, a limiting structure is disposed on the loading body 30 in advance, the limiting structure includes a via hole disposed on the loading body 30 and a plurality of stopping arms extending from the edge of the via hole to the center of the via hole, an interval is disposed between the stopping arms, the connecting portion 41 rotates by a certain angle after extending into the via hole through the interval, the stopping of the protruding arms is disposed below the stopping arms, when the lifting portion drives the hanging lug to move upward, the protruding arms and the stopping arms stop to drive the loading body 30 to move upward, and connection between the connecting portion 41 and the loading body 30 is achieved.

In the embodiment, the supporting member 20 includes a plurality of supporting rods disposed at the corners of the supporting body 10 to support the supporting body 10. The supporting body 10 of the present embodiment is a rectangular plate-shaped member, and therefore, four supporting rods are preferred, and one supporting rod is disposed at a position close to four corners of the supporting body 10, respectively, so as to ensure that the supporting assembly 20 can stably support the supporting body 10. Also can be provided with a plurality of bracing pieces in every corner, cup joint through hydraulic system between the bracing piece, when supporting component 20's hoist and mount height need change, make through hydraulic drive flexible between the bracing piece that links together to change the holistic length along vertical direction of supporting component 20, realize the regulation to the height of supporting body 10.

It should be noted that the distance between the support rods at the four corners is to enable the carrier 30 to move under the supporting body 10 without interfering with the support assembly 20, and the specific distance can be determined according to the size, width, etc. of the carrier 30.

Optionally, the tool load mechanism further comprises a locking assembly provided on the load body 30 and/or the carrier body 10 to lock between the carrier body 10 and the load body 30 when the load body 30 is raised into contact with the carrier body 10.

Specifically, the locking assembly is configured similarly to the mating of the coupling portion 41 and the retaining structure. The locking assembly comprises a positioning pin, a positioning hole and a locking part, wherein the positioning pin is arranged on the bearing body 10 and extends out towards the direction of the loading body 30; the positioning holes are arranged on the loading body 30 and correspond to the positioning pins one by one, the positioning holes are provided with stop structures, the stop structures are a plurality of plate-shaped pieces extending from the edges of the positioning holes to the centers of the positioning holes, and intervals are reserved among the plate-shaped pieces; the locking part is arranged at one end of the positioning pin extending into the positioning hole, the locking part is a plurality of plate-shaped parts arranged on the side wall of the end part of the positioning pin, the plate-shaped parts on the positioning pin extend out in the direction far away from the positioning pin and are matched with the stopping structures in a stopping way, so that when the positioning pin extends into the positioning hole, the locking parts enter the positioning hole at intervals, and then the locking part rotates for a certain angle to be matched with the stopping structures in a stopping way, so that the positioning pin is locked in the positioning hole, and the loading body 30 and the bearing body 10 are locked.

As shown in fig. 2 and 3, the loading body 30 in this embodiment is a wagon, and the supporting body 10 is a mooring frame. Of course, the carrier 10 may be another device such as a container, and the loading body 30 may be another loading device such as a rack.

The embodiment also provides a use method of the equipment loading mechanism, and the use method of the equipment loading mechanism comprises the following steps: step S1: moving at least a portion of the load carrier 30 into a receiving space formed by the carrier 10 of the tool loading mechanism; step S2: connecting the lift assembly 40 of the tool loading mechanism to the loading body 30; step S3: the lifting assembly 40 is driven to move, and the lifting assembly 40 drives the loading body 30 to move upwards, and the loading body 30 is automatically aligned with the bearing body 10 under the action of gravity in the movement process of the loading body 30. Step S4: during the upward movement of the loading body 30, the positioning pin of the locking assembly of the equipment loading mechanism extends into the positioning hole of the locking assembly, and the lifting assembly 40 is controlled to stop when the loading body 30 contacts the bearing body 10; step S5: the positioning pins are locked in the positioning holes through the locking parts of the locking assemblies so as to lock the loading body 30 and the carrier body 10; step S6: changing the lifting height of the support assembly 20 of the equipment loading mechanism to enable the loading body 30 and the bearing body 10 to be put down together until the loading body 30 contacts the ground; step S7: the locking portion is unlocked to unlock between the loading body 30 and the carrier body 10, and the lift assembly 40 is detached from the loading body 30. After the loading body 30 is connected with the bearing body 10 in the above mode, the loading body 30 is automatically aligned with the bearing body 10 under the action of gravity by lifting the loading body 30, the operation of the whole process is convenient, and the loading efficiency is greatly improved. Meanwhile, the bearing body 10 and the loading body 30 are connected and loaded quickly, conveniently and reliably in installation, safety is high, and using requirements can be met.

Wherein, step S2 includes: step S21: changing the included angle between the lifting assembly 40 and the vertical direction to adjust the angle between the lifting assembly 40 and the vertical direction, so that the connecting part 41 of the lifting assembly 40 is aligned with the through hole of the loading body 30; step S22: the connecting portion 41 is rotated by a certain angle after passing through the via hole, so that the protruding arm of the connecting portion 41 is located below the stopper arm of the via hole.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the problem that the shaft holes are difficult to align when the equipment in the prior art is loaded is solved;

2. the gravity action of the loading body is utilized, manual intervention is not needed, and the operation difficulty of alignment operation is reduced;

3. convenient to use, swift has reduced installer's intensity of labour, and the security is high.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.