阅读说明：本技术 一种用于体育腿部残疾的运动座椅 (A motion seat for sports shank is disabled ) 是由 曾环旺 于 2021-07-05 设计创作，主要内容包括：本发明涉及一种运动座椅,尤其涉及一种用于体育腿部残疾的运动座椅。本发明提供一种能够辅助一只脚残疾的人进行运动锻炼,方便操作的用于体育腿部残疾的运动座椅。一种用于体育腿部残疾的运动座椅,包括：支腿,其顶部连接有座椅；侧板,座椅两侧均连接有侧板；限位杆,支腿下部连接有限位杆；脚踏组件,座椅上设有脚踏组件,脚踏组件上设有卡住组件；运动组件,座椅上设有运动组件。本发明通过卡住组件能够将脚踏组件卡住,通过运动组件能够辅助一只脚残疾的人进行手臂运动锻炼,通过脚踏组件能够辅助一只脚残疾的人进行腿部运动锻炼,从而达到了能够辅助一只脚残疾的人进行运动锻炼的效果。(The invention relates to a sports seat, in particular to a sports seat for sports leg disabilities. The invention provides a sports seat for physical training with disabled legs, which can assist a person with disabled feet in sports and exercise and is convenient to operate. A sports seat for sports leg disabilities comprising: the top of the supporting leg is connected with a seat; the two sides of the seat are connected with side plates; the lower part of the supporting leg is connected with a limiting rod; the seat is provided with a pedal assembly, and the pedal assembly is provided with a clamping assembly; the motion assembly is arranged on the seat. According to the invention, the foot pedal assembly can be clamped through the clamping assembly, the motion assembly can assist a person with one disabled foot to carry out arm exercise, and the foot pedal assembly can assist a person with one disabled foot to carry out leg exercise, so that the effect of assisting a person with one disabled foot to carry out exercise is achieved.)

1. A sports seat for sports leg disabilities, comprising:

the top of the supporting leg (1) is connected with a seat (2);

the two sides of the seat (2) are both connected with the side plates (3);

the lower parts of the supporting legs (1) are connected with limiting rods (4);

the seat is characterized by comprising a pedal assembly (5), wherein the seat (2) is provided with the pedal assembly (5), and the pedal assembly (5) is provided with a clamping assembly (6);

the motion component (7) is arranged on the seat (2).

2. A sports seat for sports leg disabilities according to claim 1, characterized in that the footrest assembly (5) comprises:

the seat comprises a rotating shaft (51), the bottom of the seat (2) is rotatably connected with the rotating shaft (51), the rotating shaft (51) is connected with a first swinging frame (52), two sides of the first swinging frame (52) are both connected with first sliding blocks (53) in a sliding manner, and an extension spring (54) is connected between each first sliding block (53) and the corresponding first swinging frame (52);

a pedal (55) is connected between the first sliding blocks (53).

3. A sports seat for sports leg disabilities according to claim 2, characterized in that the jamming assembly (6) comprises:

the lower part of one side of the first swinging frame (52) is connected with the first clamping block (61) in a sliding way, and the first clamping block (61) is matched with the first sliding block (53) on one side;

the elastic piece (62) is connected between the first clamping block (61) and the first swinging frame (52);

the connecting rod (63) is connected to the first clamping block (61).

4. A sports seat for sports leg disabilities according to claim 3, characterized in that the motion assembly (7) comprises:

the outer side surface of the side plate (3) is rotatably connected with a second swinging frame (71), and the second swinging frame (71) is connected with a handle (72);

a first torsion spring (73) is connected between the second swing frame (71) and the side plate (3).

5. A sports seat for sports leg disabilities according to claim 4, further comprising a squeeze assembly (8), the squeeze assembly (8) comprising:

the upper part of one side of the first swing frame (52) is connected with a second sliding block (83) in a sliding manner, the second sliding block (83) is connected with a first wedge block (84), and the first wedge block (84) is in contact fit with the connecting rod (63);

the first sliding frame (81), the first wedge-shaped block (84) is connected with the first sliding frame (81), and the first sliding frame (81) is connected with the connecting plate (82).

6. A sports seat for sports leg disabilities according to claim 5, further comprising a swivel assembly (10), the swivel assembly (10) comprising:

the outer side surface of one side plate (3) is rotatably connected with the wheel disc (101), a second torsion spring (1090) is connected between the wheel disc (101) and the other side plate (3), and a clamping groove (102) is formed in the wheel disc (101);

one side, close to the wheel disc (101), of one side plate (3) of the rhombic guide rails (103) is connected with the rhombic guide rails (103), the rhombic guide rails (103) are connected with second clamping blocks (104) in a sliding mode, and the second clamping blocks (104) are matched with the clamping grooves (102);

a first common spring (105) is connected between the second clamping block (104) and the rhombic guide rail (103);

the driving gear (109) is connected to the wheel disc (101);

one side of one side plate (3) close to the driving gear (109) is rotatably connected with the transmission gear (106), and the transmission gear (106) is meshed with the driving gear (109);

synchronizing wheels (107) are connected to a transmission shaft of the transmission gear (106) and the rotating shaft (51), and a synchronous belt (108) is sleeved between the synchronizing wheels (107).

7. A sports seat for sports leg disabilities according to claim 6, further comprising a pushing assembly (9), the pushing assembly (9) comprising:

the upper part of one side of the wheel disc (101) is connected with the arc-shaped sliding block (91) in a sliding way, and an arc-shaped spring (92) is connected between the arc-shaped sliding block (91) and the wheel disc (101);

the contact rod (93) is connected to the arc-shaped sliding block (91), and the contact rod (93) is in contact fit with the second swinging frame (71) on one side;

the lower part of one side of the wheel disc (101) is connected with the guide sleeve (94), the guide sleeve (94) is connected with a second sliding frame (95) in an inner sliding mode, the upper part of the second sliding frame (95) is connected with a clamping sleeve (96), and the clamping sleeve (96) is matched with the contact rod (93);

the lower part of the second sliding frame (95) is connected with a second wedge-shaped block (97), and the second wedge-shaped block (97) is matched with the clamping groove (102);

a first return spring (98) is connected between the second wedge-shaped block (97) and the guide sleeve (94);

the extrusion rod (99) is connected to the second clamping block (104), and the extrusion rod (99) is matched with the second wedge-shaped block (97).

8. A sports seat for sports leg disabilities according to claim 7, further comprising a blocking assembly (11), the blocking assembly (11) comprising:

a second return spring (111), wherein the second return spring (111) is connected between the second sliding block (83) and the first swing frame (52);

the lower part of one side of the first swinging frame (52) is connected with the stop block (112) in a sliding manner, the stop block (112) is matched with the first clamping block (61), and the stop block (112) is matched with the first sliding block (53) on one side;

and a second common spring (113), wherein the second common spring (113) is connected between the stop (112) and the first swing frame (52).

Technical Field

The invention relates to a sports seat, in particular to a sports seat for sports leg disabilities.

Background

A disabled person generally can not oneself go out the motion alone and temper, so a disabled person very inconveniently when will moving and temper, needs other people to assist and goes on to when nobody helps, a disabled person generally can't move and temper, but does not generally have at present and assists a disabled person to move the sports equipment of taking exercise, thereby a disabled person is difficult to move and tempers at any time.

Therefore, there is a need to develop a sports seat for physical leg disability which can assist a person with one foot disability in performing sports exercises and is convenient to operate.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects that a person with one disabled foot is very inconvenient to exercise and needs others to assist in exercising, and the invention aims to solve the technical problem of providing the exercise seat for physical training with the disabled leg, which can assist the person with one disabled foot in exercising and is convenient to operate.

(2) Technical scheme

In order to solve the above technical problems, the present invention provides a sports seat for sports leg disabilities, comprising: the top of the supporting leg is connected with a seat; the two sides of the seat are connected with side plates; the lower part of the supporting leg is connected with a limiting rod; the seat is provided with a pedal assembly, and the pedal assembly is provided with a clamping assembly; the motion assembly is arranged on the seat.

Preferably, the footrest assembly includes: the bottom of the seat is rotatably connected with a rotating shaft, the rotating shaft is connected with a first swing frame, two sides of the first swing frame are both connected with first sliding blocks in a sliding mode, and an extension spring is connected between each first sliding block and the corresponding first swing frame; a pedal is connected between the first sliding blocks.

Preferably, the chucking assembly includes: the lower part of one side of the first swinging frame is connected with a first clamping block in a sliding way, and the first clamping block is matched with the first sliding block on one side; the elastic piece is connected between the first clamping block and the first swing frame; the connecting rod is connected to the first clamping block.

Preferably, the motion assembly comprises: the outer side surface of the side plate is rotatably connected with a second swing frame, and the second swing frame is connected with a handle; and a first torsion spring is connected between the second swinging frame and the side plate.

Preferably, a compression assembly is further included, the compression assembly comprising: the upper part of one side of the first swing frame is connected with a second sliding block in a sliding way, the second sliding block is connected with a first wedge-shaped block, and the first wedge-shaped block is in contact fit with the connecting rod; the first sliding frame is connected to the first wedge-shaped block, and the connecting plate is connected to the first sliding frame.

Preferably, a rotating assembly is further included, the rotating assembly comprising: the outer side surface of one side plate is rotatably connected with the wheel disc, a second torsion spring is connected between the wheel disc and the one side plate, and a clamping groove is formed in the wheel disc; one side of one side plate, close to the wheel disc, of each diamond-shaped guide rail is connected with the diamond-shaped guide rail, the diamond-shaped guide rails are connected with second clamping blocks in a sliding mode, and the second clamping blocks are matched with the clamping grooves; the first common spring is connected between the second clamping block and the rhombic guide rail; the wheel disc is connected with a driving gear; one side of one side plate close to the driving gear is rotatably connected with the transmission gear, and the transmission gear is meshed with the driving gear; synchronizing wheels are connected to a transmission shaft and a rotating shaft of the transmission gear, and a synchronous belt is sleeved between the synchronizing wheels.

Preferably, the device further comprises a pushing assembly, wherein the pushing assembly comprises: the upper part of one side of the wheel disc is connected with an arc-shaped sliding block in a sliding way, and an arc-shaped spring is connected between the arc-shaped sliding block and the wheel disc; the contact rod is connected to the arc-shaped sliding block and is in contact fit with the second swing frame on one side; the lower part of one side of the wheel disc is connected with a guide sleeve, the guide sleeve is connected with a second sliding frame in a sliding manner, the upper part of the second sliding frame is connected with a cutting sleeve, and the cutting sleeve is matched with the contact rod; the lower part of the second sliding frame is connected with a second wedge-shaped block which is matched with the clamping groove; the first reset spring is connected between the second wedge-shaped block and the guide sleeve; and the extrusion rod is connected to the second clamping block and matched with the second wedge-shaped block.

Preferably, a blocking assembly is further included, the blocking assembly comprising: the second return spring is connected between the second sliding block and the first swing frame; the lower part of one side of the first swing frame is connected with a stop block in a sliding manner, the stop block is matched with the first clamping block, and the stop block is matched with the first sliding block on one side; and a second common spring is connected between the stop block and the first swing frame.

(3) Advantageous effects

1. The foot pedal assembly can be clamped through the clamping assembly, the motion assembly can assist a person with one disabled foot to carry out arm motion exercise, and the foot pedal assembly can assist a person with one disabled foot to carry out leg motion exercise, so that the effect of assisting the person with one disabled foot to carry out motion exercise is achieved;

2. the clamping assembly can be conveniently operated through the extrusion assembly, so that the clamping assembly loosens the pedal assembly;

3. the angle of the pedal assembly can be adjusted through the rotating assembly, so that leg exercise can be better performed;

4. the pushing assembly can trigger the rotating assembly to work, so that the operation is more convenient;

5. can carry on spacingly blocking the subassembly through blocking the subassembly to can be convenient for carry out the shank motion and take exercise.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a diagram of a first partial body structure of the present invention.

Fig. 3 is an enlarged view of part B of the present invention.

Fig. 4 is an enlarged view of a portion a of the present invention.

FIG. 5 is a diagram of a second partial body structure according to the present invention.

Fig. 6 is an enlarged view of the portion C of the present invention.

Fig. 7 is a perspective view of the rotating unit according to the present invention.

Fig. 8 is a partial perspective view of the rotating unit of the present invention.

Fig. 9 is a partial perspective view of the baffle assembly of the present invention.

Fig. 10 is an enlarged view of portion D of the present invention.

The labels in the figures are: 1-support leg, 2-seat, 3-side plate, 4-limit rod, 5-pedal component, 51-rotating shaft, 52-first swinging frame, 53-first slide block, 54-extension spring, 55-pedal plate, 6-clamping component, 61-first clamping block, 62-elastic component, 63-connecting rod, 7-moving component, 71-second swinging frame, 72-handle, 73-first torsion spring, 8-extrusion component, 81-first sliding frame, 82-connecting plate, 83-second slide block, 84-first wedge block, 9-pushing component, 91-arc slide block, 92-arc spring, 93-contact rod, 94-guide sleeve, 95-second sliding frame and 96-clamping sleeve, 97-second wedge block, 98-first return spring, 99-extrusion rod, 10-rotating assembly, 101-wheel disc, 102-clamping groove, 103-diamond guide rail, 104-second clamping block, 105-first common spring, 106-transmission gear, 107-synchronous wheel, 108-synchronous belt, 109-driving gear, 1090-second torsion spring, 11-blocking assembly, 111-second return spring, 112-stop, 113-second common spring.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

A sports seat for physical exercise leg disabilities is shown in figures 1-4 and comprises supporting legs 1, a seat 2, side plates 3, a limiting rod 4, a pedal assembly 5, a clamping assembly 6 and a sports assembly 7, wherein the top of each supporting leg 1 is connected with the seat 2, the front side and the rear side of the seat 2 are connected with the side plates 3, the lower portion of each supporting leg 1 is connected with the limiting rod 4, the seat 2 is provided with the pedal assembly 5, the pedal assembly 5 is provided with the clamping assembly 6, and the chair 2 is provided with the sports assembly 7.

The pedal assembly 5 comprises a rotating shaft 51, a first swing frame 52, a first sliding block 53, an extension spring 54 and a pedal 55, the rotating shaft 51 is rotatably connected to the left side of the bottom of the seat 2, the first swing frame 52 is connected to the rotating shaft 51, the first sliding block 53 is slidably connected to the front side and the rear side of the first swing frame 52, the extension spring 54 is connected between the first sliding block 53 and the first swing frame 52, and the pedal 55 is connected between the two first sliding blocks 53.

The locking assembly 6 comprises a first locking block 61, an elastic member 62 and a connecting rod 63, the lower part of the front side of the first swing frame 52 is slidably connected with the first locking block 61, the first locking block 61 is matched with the first sliding block 53 at the front side, two elastic members 62 are connected between the first locking block 61 and the first swing frame 52, and the front side surface of the first locking block 61 is connected with the connecting rod 63.

The moving assembly 7 comprises a second swing frame 71, a handle 72 and a first torsion spring 73, the second swing frame 71 is rotatably connected to the outer side surface of the side plate 3, the handle 72 is connected to the second swing frame 71, and the first torsion spring 73 is connected between the second swing frame 71 and the side plate 3.

When a person with one disabled foot wants to do exercise, the apparatus can be used, initially, the first latch 61 latches the front first slider 53, the extension spring 54 is in a stretched state, first, the person with one disabled foot can sit on the seat 2, then, the foot can be placed on the foot rest 55, then, the handle 72 can be held by hand, when the hand is going to do exercise, the handle 72 can be pushed to the left to rotate the second swing frame 71, the first torsion spring 73 is compressed accordingly, the handle 72 is released, the second swing frame 71 can be reversely rotated and reset under the action of the first torsion spring 73, the arm exercise can be repeatedly performed, when the leg is going to do exercise, the connecting rod 63 can be pulled forward to disengage the first latch 61 from the front first slider 53, the elastic member 62 is stretched accordingly, the foot rest 55 can be moved upward under the action of the extension spring 54, can lift the foot this moment, then step on running-board 55 downwards with the foot, first slider 53 moves down thereupon, extension spring 54 is tensile along with it, go round and begin repeatedly, can be repeated carry out the shank motion and take exercise, so this equipment can block pedal assembly 5 through blocking subassembly 6, can assist a disabled person of foot to carry out the arm motion through motion subassembly 7 and take exercise, can assist a disabled person of foot to carry out the shank motion through pedal assembly 5 and take exercise, thereby reached and to have assisted a disabled person of foot to carry out the effect of taking exercise.

Example 2

On the basis of the embodiment 1, as shown in fig. 1 and 5, the extrusion assembly 8 is further included, the extrusion assembly 8 includes a first sliding frame 81, a connecting plate 82, a second sliding block 83 and a first wedge block 84, the second sliding block 83 is slidably connected to the upper portion of the front side of the first swing frame 52, the first wedge block 84 is connected to the second sliding block 83, the first wedge block 84 is in contact fit with the connecting rod 63, the first sliding frame 81 is connected to the top of the first wedge block 84, and the connecting plate 82 is connected to the top of the first sliding frame 81.

When the first block 61 is to be disengaged from the front first sliding block 53, the connecting plate 82 is pushed downward, so that the first sliding frame 81 moves downward, the first sliding frame 81 moves downward to drive the first wedge-shaped block 84 to move downward, the first wedge-shaped block 84 moves downward to enable the connecting rod 63 to move forward, and the first block 61 moves forward to disengage from the first sliding block 53, so that the operation is convenient; when the first latch 61 is to be reset, the connecting plate 82 is moved upward to be reset. Thus, the clamping assembly 6 can be conveniently operated through the squeezing assembly 8, so that the clamping assembly 6 loosens the pedal assembly 5.

Example 3

On the basis of embodiment 2, as shown in fig. 1, 7 and 8, the present invention further includes a rotating assembly 10, the rotating assembly 10 includes a wheel disc 101, a diamond-shaped guide rail 103, a second block 104, a first common spring 105, a transmission gear 106, a synchronizing wheel 107, a synchronous belt 108, a driving gear 109 and a second torsion spring 1090, the wheel disc 101 is rotatably connected to an outer side surface of the front side plate 3, the second torsion spring 1090 is connected between the wheel disc 101 and the front side plate 3, a slot 102 is formed on the wheel disc 101, the diamond-shaped guide rail 103 is connected to an outer side surface of the front side plate 3, the diamond-shaped guide rail 103 is located on a right side of the wheel disc 101, the second block 104 is slidably connected to the diamond-shaped guide rail 103, the second block 104 is matched with the slot 102, the first common spring 105 is connected between the second block 104 and the diamond-shaped guide rail 103, the driving gear 109 is connected to the wheel 101, the transmission gear 106 is rotatably connected to an outer side surface of the front side plate 3, the transmission gear 106 is positioned at the lower side of the driving gear 109, the transmission gear 106 is meshed with the driving gear 109, the transmission shaft of the transmission gear 106 and the rotating shaft 51 are both connected with synchronous wheels 107, and a synchronous belt 108 is sleeved between the two synchronous wheels 107.

Initially, the wheel disc 101 extrudes the second clamping block 104, the first common spring 105 is in a compressed state, the wheel disc 101 can be rotated, the second torsion spring 1090 is compressed along with the wheel disc 101, the transmission gear 106 can be rotated through the driving gear 109, the transmission gear 106 can be rotated to enable the rotating shaft 51 to rotate through the synchronizing wheel 107 and the synchronizing belt 108, the rotating shaft 51 can be rotated to enable the first swinging frame 52 to swing upwards, so that the angle of the first swinging frame 52 can be adjusted, the angle of the pedal 55 can be adjusted, and leg exercise can be better performed, when the clamping groove 102 is flush with the second clamping block 104, the second clamping block 104 can be moved leftwards and inserted into the clamping groove 102 under the action of the first common spring 105, so that the wheel disc 101 can be fixed, the wheel disc 101 can be prevented from automatically rotating reversely to reset, and the first swinging frame 52 can be fixed, and the first swinging frame 52 can be prevented from automatically swinging downwards to reset, when the first swing frame 52 is to swing downwards to reset, the second latch 104 moves rightwards to move out of the latch slot 102, the first common spring 105 is compressed, and under the action of the second torsion spring 1090, the wheel disc 101 can rotate reversely to reset, so that the first swing frame 52 can swing downwards to reset, the angle of the pedal assembly 5 can be adjusted through the rotating assembly 10, and leg exercise can be better performed.

Example 4

On the basis of embodiment 3, as shown in fig. 1 and 6, the push assembly 9 further includes a push assembly 9, the push assembly 9 includes an arc-shaped slider 91, an arc-shaped spring 92, a contact rod 93, a guide sleeve 94, a second sliding frame 95, a ferrule 96, a second wedge 97, a first return spring 98 and a pressing rod 99, the arc-shaped slider 91 is slidably connected to the upper portion of the front side of the wheel 101, the arc-shaped spring 92 is connected between the arc-shaped slider 91 and the wheel 101, the contact rod 93 is connected to the arc-shaped slider 91, the contact rod 93 is in contact fit with the second front swing frame 71, the guide sleeve 94 is connected to the lower portion of the front side of the wheel 101, the second sliding frame 95 is slidably connected to the inner portion of the guide sleeve 94, the ferrule 96 is connected to the upper portion of the second sliding frame 95, the ferrule 96 is in fit with the contact rod 93, the second wedge 97 is connected to the lower portion of the second sliding frame 95, the second wedge 97 is fit with the groove 102, the first return spring 98 is connected between the second wedge 97 and the guide sleeve 94, the front side surface of the second latch 104 is connected with a pressing rod 99, and the pressing rod 99 is matched with the second wedge-shaped block 97.

Initially, the ferrule 96 is clamped on the contact rod 93, so that when the front-side second swing frame 71 rotates, the contact rod 93 can be pushed to rotate, the contact rod 93 rotates to enable the wheel disc 101 to rotate through the ferrule 96, the second sliding frame 95 and the guide sleeve 94, the second torsion spring 1090 is compressed therewith, the second wedge block 97 rotates therewith, when the second wedge block 97 rotates to be in contact with the extrusion rod 99, under the action of the extrusion rod 99, the second wedge block 97 can move forward, the first return spring 98 is compressed therewith, the second wedge block 97 moves forward to push the second sliding frame 95 to move forward, the second sliding frame 95 moves forward to drive the ferrule 96 to move forward to be separated from the contact rod 93, at the moment, the wheel disc 101 is clamped and fixed by the second clamping block 104, so that the front-side second swing frame 71 rotates continuously to push the arc-shaped sliding block 91 to slide on the wheel disc 101, and the wheel disc 101 cannot rotate continuously, the arc spring 92 compresses along with it, when the second swing frame 71 on the front side reversely rotates and resets, under the effect of the arc spring 92, the arc slider 91 can reset, when the wheel disc 101 is to be reset reversely, the second clamping block 104 moves rightwards, the extrusion rod 99 moves rightwards along with it to be separated from the second wedge block 97, under the effect of the first reset spring 98, the second wedge block 97 can move backwards and reset, so that the clamping sleeve 96 moves backwards and is clamped on the contact rod 93 again, so that the wheel disc 101 reversely rotates and resets to drive the component on the clamping sleeve to reversely rotate and reset, further, the operation is more convenient, so that the rotating assembly 10 can be triggered to work through the pushing assembly 9, and the operation is more convenient.

As shown in fig. 1, 5, 9 and 10, the device further comprises a blocking assembly 11, the blocking assembly 11 comprises a second return spring 111, a stopper 112 and a second common spring 113, the second return spring 111 is connected between the second slider 83 and the first swing frame 52, the stopper 112 is slidably connected below the front portion of the first swing frame 52, the stopper 112 is engaged with the first latch 61, the stopper 112 is engaged with the first slider 53 on the front side, and two second common springs 113 are connected between the stopper 112 and the first swing frame 52.

When the second slider 83 moves downwards, the second return spring 111 is compressed, after the connecting plate 82 is loosened, the second slider 83 can move upwards and return under the action of the second return spring 111, so that the second slider 83 does not need to be moved upwards manually, and initially, the front first slider 53 presses the stop block 112, and the second common spring 113 is in a compressed state; when the first slider 53 of the front side moves upwards to be separated from the stop block 112, under the action of the second common spring 113, the stop block 112 can move upwards, the first clamping block 61 can be blocked through the stop block 112, the first clamping block 61 is prevented from automatically moving and resetting, when the first slider 53 of the front side moves downwards and resets, the stop block 112 can be pushed to move downwards to be separated from the first clamping block 61, the second common spring 113 is compressed along with the second common spring, the first clamping block 61 resets along with the first clamping block 53 of the front side to be clamped again, the clamping component 6 can be limited by blocking the component 11, and therefore leg movement exercise can be conveniently carried out.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.