Walking stick disinfecting equipment is used in medical treatment
Technical Field
The invention relates to a disinfection device, in particular to a medical crutch disinfection device.
Background
The word eye of medical treatment has appeared in recent decades, and is a new word eye for international connection, and treatment is mostly used before. However, medical care also includes healthcare content.
After the walking stick has been used, need disinfect, disinfect the walking stick with the sterilizer usually at present, and current sterilizer exists the shortcoming that the disinfection is not thorough, inconvenient fixed, consequently need urgent to develop a medical treatment of disinfecting thoroughly, convenient fixed walking stick disinfecting equipment.
Disclosure of Invention
(1) Technical problem to be solved
The medical crutch disinfection equipment aims to overcome the defects that the existing disinfection cabinet is incomplete in disinfection and inconvenient to fix, and the technical problem to be solved by the invention is to provide the medical crutch disinfection equipment which is thorough in disinfection and convenient to fix.
(2) Technical scheme
In order to solve the technical problem, the invention provides a medical walking stick disinfection device which comprises a bottom plate, a support plate, a motor, a disc, a rolling shaft, transverse plates, guide rods, a sliding sleeve, sliding rods, a clip frame, a vertical rod, a connecting rod, a first arc-shaped clamp rod, a second arc-shaped clamp rod, a screw rod, a first sponge block, a support rod, an arc-shaped plate, a second sponge block and a rotating shaft, wherein the support plate is connected to the right side of the top of the bottom plate, the motor is installed on the upper portion of the front side of the support plate, the rotating shaft is connected to an output shaft of the motor, the disc is installed at the front end of the rotating shaft, the rolling shaft is connected to the eccentric position of the front side of the disc, the left side of the support plate is connected with the two transverse plates, the guide rods are connected to the right portion of the inner sides of the transverse plates, connecting rod rear side left part and montant rear side are articulated to be connected with first arc kelly and second arc kelly, first arc kelly and second arc kelly all are netted, the screw has all been opened at first arc kelly and second arc kelly rear portion, first arc kelly and second arc kelly inner wall all are connected with first sponge piece, the movable screw rod that is equipped with in the screw, the inboard left part of diaphragm is connected with branch, the branch inboard is connected with the arc, two arcs all are netted, two arc inner walls all are connected with the second sponge piece.
Preferably, still including the drawing liquid pump, the drain pipe, first branch pipe, the second branch pipe, feed liquor pipe and disinfectant box, the disinfectant box is installed at the bottom plate top, disinfectant box top is connected with the diaphragm bottom of below, the drawing liquid pump is installed to disinfectant box bottom, be connected with the drain pipe on the drawing liquid pump, the drain pipe end is worn out the disinfectant box and is connected with the arc below, two first branch pipes of branching out on the drain pipe, the first branch pipe end on the left side is connected with the arc above, the first branch pipe end on the right is connected with the second arc kelly on the left, the second branch pipe of branching out on the first branch pipe on the right, the second branch pipe end with the second arc kelly on the right be connected, disinfectant box top left side is connected with the feed liquor pipe.
Preferably, still including first belt pulley, the second belt pulley, the flat belt, first bevel gear, the bearing frame, the puddler, stirring vane and second bevel gear, pivot mid-mounting has first belt pulley, the second belt pulley is installed to extension board front side lower part rotary type, be connected with the flat belt between second belt pulley and the first belt pulley, first bevel gear is installed to second belt pulley front side, the bearing frame is installed on the right side in the disinfectant box, the puddler is connected in the bearing frame, install stirring vane on the puddler, stirring vane is located the disinfectant box, second bevel gear is installed to the puddler right-hand member, second bevel gear and first bevel gear meshing.
Preferably, the stirring device further comprises a spring and a steel ball, the lower part of the right side of the stirring blade is connected with the spring, and the tail end of the spring is connected with the steel ball.
Preferably, the fan is further included, an opening is formed in the middle of the transverse plate on the upper side, and the fan is installed at the bottom of the transverse plate on the upper side.
The working principle is as follows: when needs disinfect to the walking stick, operating personnel unscrew the screw rod, then make the walking stick be located between first arc kelly and the second arc kelly, and make it be located the arc, again with screw rod screw in screw and screw up, at this moment, operating personnel pours proper amount antiseptic solution on first sponge piece and second sponge piece, then the starter motor rotates, drive pivot and disc rotate, thereby it rotates to drive the roller bearing, the roller bearing removes at the shape frame of returning, make to return and remove about the shape frame, thereby it removes about drive slide bar and montant, remove about first sponge piece and the walking stick thereupon, make the antiseptic solution on first sponge piece and the second sponge piece can disinfect to the walking stick. After the disinfection is finished, the motor is turned off, then the screw rod is screwed off, and then the crutch is taken down.
Because still including the drawing liquid pump, the drain pipe, first branch pipe, the second branch pipe, feed liquor pipe and disinfectant box, the disinfectant box is installed at the bottom plate top, disinfectant box top is connected with the diaphragm bottom of below, the drawing liquid pump is installed to disinfectant box bottom, be connected with the drain pipe on the drawing liquid pump, the drain pipe is terminal to be worn out the disinfectant box and be connected with the arc below, two first branch pipes of branching out on the drain pipe, the first branch pipe on the left side is terminal to be connected with the arc above, the first branch pipe on the right is terminal to be connected with the second arc kelly on the left, the second branch pipe of branching out on the first branch pipe on the right, the second branch pipe is terminal to be connected with the second arc kelly on the right of second branch pipe, disinfectant box top left side. The operating personnel pours into the antiseptic solution incasement with appropriate amount of antiseptic solution from the feed liquor pipe, then starts the work of drawing liquid pump, makes the antiseptic solution of antiseptic solution incasement pass through drain pipe, first branch pipe and second branch pipe and flow to first sponge piece and second sponge piece on to the infiltration first sponge piece and second sponge piece flow to the walking stick, make the walking stick by sterile more thoroughly. And after the disinfection is finished, closing the liquid pump.
Because still including first belt pulley, the second belt pulley, the flat belt, first bevel gear, the bearing frame, the puddler, stirring vane and second bevel gear, pivot mid-mounting has first belt pulley, the second belt pulley is installed to extension board front side lower part rotary type, be connected with the flat belt between second belt pulley and the first belt pulley, first bevel gear is installed to second belt pulley front side, the bearing frame is installed on the right side in the disinfectant box, the puddler is connected in the bearing frame, install stirring vane on the puddler, stirring vane is located the disinfectant box, second bevel gear is installed to the puddler right-hand member, second bevel gear and first bevel gear meshing. When the motor rotates to drive the rotating shaft to rotate, the first belt pulley is driven to rotate, the second belt pulley is driven through the flat belt, the first bevel gear and the second bevel gear are driven to rotate, the stirring blade rotates along with the first bevel gear and stirs disinfectant in the disinfectant box, and therefore the disinfectant can be prevented from precipitating.
Because still including spring and steel ball, stirring vane right side lower part is connected with the spring, and the spring end-to-end connection has the steel ball. When the motor rotates to drive the stirring blade to rotate, the spring is driven to rotate, so that the steel balls are driven to rotate, and the disinfectant can be stirred more uniformly.
Because the fan is also included, the middle part of the transverse plate at the upper part is provided with an opening, and the bottom of the transverse plate at the upper part is provided with the fan. After the disinfection is finished, the fan is turned on by an operator to dry the crutch. After drying, the fan is turned off.
(3) Advantageous effects
The walking stick can be fixed through the first arc-shaped clamping rod and the second arc-shaped clamping rod, the walking stick is prevented from falling down during disinfection, and the disinfectant in the disinfectant box can flow onto the walking stick by starting the liquid pump, so that the effects of thorough disinfection and convenient fixation are achieved.
Drawings
Fig. 1 is a first front view structure diagram of the present invention.
FIG. 2 is a schematic top view of the screw hole and the threaded rod of the present invention.
Fig. 3 is a left side view structural schematic diagram of an arc-shaped plate and a second sponge block of the invention.
Fig. 4 is a second front view structure diagram of the present invention.
Fig. 5 is a third schematic view of the present invention.
Fig. 6 is a schematic diagram of a fourth front view structure according to the present invention.
The labels in the figures are: 1-bottom plate, 2-support plate, 3-motor, 4-disc, 5-roller, 6-transverse plate, 7-fan, 8-guide rod, 9-sliding sleeve, 10-sliding rod, 11-clip frame, 12-vertical rod, 13-connecting rod, 14-first arc-shaped clamping rod, 15-second arc-shaped clamping rod, 16-screw hole, 17-screw rod, 18-first sponge block, 19-support rod, 20-arc plate, 21-second sponge block, 22-rotating shaft, 23-liquid pump, 24-liquid outlet pipe, 25-first branch pipe, 26-second branch pipe, 27-liquid inlet pipe, 28-disinfectant tank, 29-first belt pulley, 30-second belt pulley, 31-flat belt, 32-first bevel gear, 33-bearing seat, 34-stirring rod, 35-stirring blade, 36-second bevel gear, 37-spring, 38-steel ball and 39-opening.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1
A medical crutch disinfection device is shown in figures 1-6 and comprises a bottom plate 1, a support plate 2, a motor 3, a disc 4, a rolling shaft 5, a transverse plate 6, a guide rod 8, a sliding sleeve 9, a sliding rod 10, a clip frame 11, a vertical rod 12, a connecting rod 13, a first arc-shaped clamping rod 14, a second arc-shaped clamping rod 15, a screw rod 17, a first sponge block 18, a support rod 19, an arc-shaped plate 20, a second sponge block 21 and a rotating shaft 22, wherein the right side of the top of the bottom plate 1 is connected with the support plate 2, the upper part of the front side of the support plate 2 is provided with the motor 3, the output shaft of the motor 3 is connected with the rotating shaft 22, the front end of the rotating shaft 22 is provided with the disc 4, the eccentric position of the front side of the disc 4 is connected with the rolling shaft 5, the left side of the support plate 2 is connected with two transverse plates 6, the right part of the, roller bearing 5 is located back shape frame 11, two slide bar 10 left ends are connected with montant 12, montant 12 left side middle part is connected with connecting rod 13, the articulated first arc kelly 14 and the second arc kelly 15 that is connected with of connecting rod 13 rear side left part and montant 12 rear side, first arc kelly 14 and second arc kelly 15 are netted, screw 16 has all been opened at first arc kelly 14 and the 15 rear portions of second arc kelly, first arc kelly 14 and the 15 inner walls of second arc kelly all are connected with first sponge piece 18, the movable screw rod 17 that is equipped with in screw 16, the inboard left part of 6 diaphragms is connected with branch 19, 19 inboard sides of branch are connected with arc 20, two arc 20 all are netted, two arc 20 inner walls all are connected with second sponge piece 21.
Example 2
A medical crutch disinfection device is shown in figures 1-6 and comprises a bottom plate 1, a support plate 2, a motor 3, a disc 4, a rolling shaft 5, a transverse plate 6, a guide rod 8, a sliding sleeve 9, a sliding rod 10, a clip frame 11, a vertical rod 12, a connecting rod 13, a first arc-shaped clamping rod 14, a second arc-shaped clamping rod 15, a screw rod 17, a first sponge block 18, a support rod 19, an arc-shaped plate 20, a second sponge block 21 and a rotating shaft 22, wherein the right side of the top of the bottom plate 1 is connected with the support plate 2, the upper part of the front side of the support plate 2 is provided with the motor 3, the output shaft of the motor 3 is connected with the rotating shaft 22, the front end of the rotating shaft 22 is provided with the disc 4, the eccentric position of the front side of the disc 4 is connected with the rolling shaft 5, the left side of the support plate 2 is connected with two transverse plates 6, the right part of the, roller bearing 5 is located back shape frame 11, two slide bar 10 left ends are connected with montant 12, montant 12 left side middle part is connected with connecting rod 13, the articulated first arc kelly 14 and the second arc kelly 15 that is connected with of connecting rod 13 rear side left part and montant 12 rear side, first arc kelly 14 and second arc kelly 15 are netted, screw 16 has all been opened at first arc kelly 14 and the 15 rear portions of second arc kelly, first arc kelly 14 and the 15 inner walls of second arc kelly all are connected with first sponge piece 18, the movable screw rod 17 that is equipped with in screw 16, the inboard left part of 6 diaphragms is connected with branch 19, 19 inboard sides of branch are connected with arc 20, two arc 20 all are netted, two arc 20 inner walls all are connected with second sponge piece 21.
Still including drawing liquid pump 23, drain pipe 24, first branch pipe 25, second branch pipe 26, feed liquor pipe 27 and disinfectant box 28, disinfectant box 28 is installed at bottom plate 1 top, disinfectant box 28 top is connected with 6 bottoms of diaphragm of below, drawing liquid pump 23 is installed to the bottom in disinfectant box 28, be connected with drain pipe 24 on drawing liquid pump 23, 24 ends of drain pipe wear out disinfectant box 28 and be connected with arc 20 below, two first branch pipes 25 of branching out on the drain pipe 24, the first branch pipe 25 end on the left side is connected with arc 20 above, the first branch pipe 25 end on the right is connected with second arc card pole 15 on the left side, the second branch pipe 26 of branching out on the first branch pipe 25 on the right, the second branch pipe 26 end and the second arc card pole 15 on the right side are connected, disinfectant box 28 top left side is connected with feed liquor pipe 27.
Example 3
A medical crutch disinfection device is shown in figures 1-6 and comprises a bottom plate 1, a support plate 2, a motor 3, a disc 4, a rolling shaft 5, a transverse plate 6, a guide rod 8, a sliding sleeve 9, a sliding rod 10, a clip frame 11, a vertical rod 12, a connecting rod 13, a first arc-shaped clamping rod 14, a second arc-shaped clamping rod 15, a screw rod 17, a first sponge block 18, a support rod 19, an arc-shaped plate 20, a second sponge block 21 and a rotating shaft 22, wherein the right side of the top of the bottom plate 1 is connected with the support plate 2, the upper part of the front side of the support plate 2 is provided with the motor 3, the output shaft of the motor 3 is connected with the rotating shaft 22, the front end of the rotating shaft 22 is provided with the disc 4, the eccentric position of the front side of the disc 4 is connected with the rolling shaft 5, the left side of the support plate 2 is connected with two transverse plates 6, the right part of the, roller bearing 5 is located back shape frame 11, two slide bar 10 left ends are connected with montant 12, montant 12 left side middle part is connected with connecting rod 13, the articulated first arc kelly 14 and the second arc kelly 15 that is connected with of connecting rod 13 rear side left part and montant 12 rear side, first arc kelly 14 and second arc kelly 15 are netted, screw 16 has all been opened at first arc kelly 14 and the 15 rear portions of second arc kelly, first arc kelly 14 and the 15 inner walls of second arc kelly all are connected with first sponge piece 18, the movable screw rod 17 that is equipped with in screw 16, the inboard left part of 6 diaphragms is connected with branch 19, 19 inboard sides of branch are connected with arc 20, two arc 20 all are netted, two arc 20 inner walls all are connected with second sponge piece 21.
Still including drawing liquid pump 23, drain pipe 24, first branch pipe 25, second branch pipe 26, feed liquor pipe 27 and disinfectant box 28, disinfectant box 28 is installed at bottom plate 1 top, disinfectant box 28 top is connected with 6 bottoms of diaphragm of below, drawing liquid pump 23 is installed to the bottom in disinfectant box 28, be connected with drain pipe 24 on drawing liquid pump 23, 24 ends of drain pipe wear out disinfectant box 28 and be connected with arc 20 below, two first branch pipes 25 of branching out on the drain pipe 24, the first branch pipe 25 end on the left side is connected with arc 20 above, the first branch pipe 25 end on the right is connected with second arc card pole 15 on the left side, the second branch pipe 26 of branching out on the first branch pipe 25 on the right, the second branch pipe 26 end and the second arc card pole 15 on the right side are connected, disinfectant box 28 top left side is connected with feed liquor pipe 27.
The disinfection liquid box is characterized by further comprising a first belt pulley 29, a second belt pulley 30, a flat belt 31, a first bevel gear 32, a bearing seat 33, a stirring rod 34, a stirring blade 35 and a second bevel gear 36, the first belt pulley 29 is installed in the middle of the rotating shaft 22, the second belt pulley 30 is installed on the support plate 2 in a lower portion of the front side in a rotating mode, the flat belt 31 is connected between the second belt pulley 30 and the first belt pulley 29, the first bevel gear 32 is installed on the front side of the second belt pulley 30, the bearing seat 33 is installed on the right side in the disinfection liquid box 28, the stirring rod 34 is connected in the bearing seat 33, the stirring blade 35 is installed on the stirring rod 34, the stirring blade 35 is located in the disinfection liquid box 28, the second bevel gear 36 is installed at the right end of.
Example 4
A medical crutch disinfection device is shown in figures 1-6 and comprises a bottom plate 1, a support plate 2, a motor 3, a disc 4, a rolling shaft 5, a transverse plate 6, a guide rod 8, a sliding sleeve 9, a sliding rod 10, a clip frame 11, a vertical rod 12, a connecting rod 13, a first arc-shaped clamping rod 14, a second arc-shaped clamping rod 15, a screw rod 17, a first sponge block 18, a support rod 19, an arc-shaped plate 20, a second sponge block 21 and a rotating shaft 22, wherein the right side of the top of the bottom plate 1 is connected with the support plate 2, the upper part of the front side of the support plate 2 is provided with the motor 3, the output shaft of the motor 3 is connected with the rotating shaft 22, the front end of the rotating shaft 22 is provided with the disc 4, the eccentric position of the front side of the disc 4 is connected with the rolling shaft 5, the left side of the support plate 2 is connected with two transverse plates 6, the right part of the, roller bearing 5 is located back shape frame 11, two slide bar 10 left ends are connected with montant 12, montant 12 left side middle part is connected with connecting rod 13, the articulated first arc kelly 14 and the second arc kelly 15 that is connected with of connecting rod 13 rear side left part and montant 12 rear side, first arc kelly 14 and second arc kelly 15 are netted, screw 16 has all been opened at first arc kelly 14 and the 15 rear portions of second arc kelly, first arc kelly 14 and the 15 inner walls of second arc kelly all are connected with first sponge piece 18, the movable screw rod 17 that is equipped with in screw 16, the inboard left part of 6 diaphragms is connected with branch 19, 19 inboard sides of branch are connected with arc 20, two arc 20 all are netted, two arc 20 inner walls all are connected with second sponge piece 21.
Still including drawing liquid pump 23, drain pipe 24, first branch pipe 25, second branch pipe 26, feed liquor pipe 27 and disinfectant box 28, disinfectant box 28 is installed at bottom plate 1 top, disinfectant box 28 top is connected with 6 bottoms of diaphragm of below, drawing liquid pump 23 is installed to the bottom in disinfectant box 28, be connected with drain pipe 24 on drawing liquid pump 23, 24 ends of drain pipe wear out disinfectant box 28 and be connected with arc 20 below, two first branch pipes 25 of branching out on the drain pipe 24, the first branch pipe 25 end on the left side is connected with arc 20 above, the first branch pipe 25 end on the right is connected with second arc card pole 15 on the left side, the second branch pipe 26 of branching out on the first branch pipe 25 on the right, the second branch pipe 26 end and the second arc card pole 15 on the right side are connected, disinfectant box 28 top left side is connected with feed liquor pipe 27.
The disinfection liquid box is characterized by further comprising a first belt pulley 29, a second belt pulley 30, a flat belt 31, a first bevel gear 32, a bearing seat 33, a stirring rod 34, a stirring blade 35 and a second bevel gear 36, the first belt pulley 29 is installed in the middle of the rotating shaft 22, the second belt pulley 30 is installed on the support plate 2 in a lower portion of the front side in a rotating mode, the flat belt 31 is connected between the second belt pulley 30 and the first belt pulley 29, the first bevel gear 32 is installed on the front side of the second belt pulley 30, the bearing seat 33 is installed on the right side in the disinfection liquid box 28, the stirring rod 34 is connected in the bearing seat 33, the stirring blade 35 is installed on the stirring rod 34, the stirring blade 35 is located in the disinfection liquid box 28, the second bevel gear 36 is installed at the right end of.
The stirring device also comprises a spring 37 and a steel ball 38, the lower part of the right side of the stirring blade 35 is connected with the spring 37, and the tail end of the spring 37 is connected with the steel ball 38.
The fan is characterized by further comprising a fan 7, an opening 39 is formed in the middle of the transverse plate 6 on the upper side, and the fan 7 is installed at the bottom of the transverse plate 6 on the upper side.
The working principle is as follows: when the walking stick needs to be disinfected, an operator unscrews the screw 17, then the walking stick is positioned between the first arc-shaped clamping rod 14 and the second arc-shaped clamping rod 15, the walking stick is positioned in the arc-shaped plate 20, and then the screw 17 is screwed into the screw hole 16 and screwed, at the moment, the operator pours a proper amount of disinfectant onto the first sponge block 18 and the second sponge block 21, then the starting motor 3 is started to rotate, the rotating shaft 22 and the disc 4 are driven to rotate, the rolling shaft 5 is driven to rotate, the rolling shaft 5 moves in the clip-shaped frame 11, the clip-shaped frame 11 is driven to move left and right, the sliding rod 10 and the vertical rod 12 are driven to move left and right, the first sponge block 18 and the walking stick move left and right accordingly, and the disinfectant on the first sponge block 18 and the second sponge block 21 can disinfect. After the disinfection is finished, the motor 3 is turned off, then the screw 17 is screwed off, and then the crutch is taken down.
Because still including drawing liquid pump 23, drain pipe 24, first branch pipe 25, second branch pipe 26, feed liquor pipe 27 and disinfectant box 28, disinfectant box 28 is installed at bottom plate 1 top, disinfectant box 28 top is connected with diaphragm 6 bottom below, drawing liquid pump 23 is installed to the bottom in disinfectant box 28, be connected with drain pipe 24 on drawing liquid pump 23, 24 ends of drain pipe wear out disinfectant box 28 and be connected with arc 20 below, two first branch pipes 25 branch out on drain pipe 24, the first branch pipe 25 end on the left side is connected with arc 20 above, the first branch pipe 25 end on the right side is connected with second arc kelly 15 on the left side, branch out second branch pipe 26 on the first branch pipe 25 on the right side, the second branch pipe 26 end is connected with second arc kelly 15 on the right side, disinfectant box 28 top left side is connected with feed liquor pipe 27. An operator pours a proper amount of disinfectant into the disinfectant tank 28 from the liquid inlet pipe 27, and then starts the liquid pump 23 to work, so that the disinfectant in the disinfectant tank 28 flows onto the first sponge block 18 and the second sponge block 21 through the liquid outlet pipe 24, the first branch pipe 25 and the second branch pipe 26 and permeates the first sponge block 18 and the second sponge block 21 to flow onto the crutch, and the crutch is disinfected more thoroughly. When sterilization is completed, the liquid-drawing pump 23 is turned off.
Because the disinfection liquid box further comprises a first belt pulley 29, a second belt pulley 30, a flat belt 31, a first bevel gear 32, a bearing seat 33, a stirring rod 34, a stirring blade 35 and a second bevel gear 36, the first belt pulley 29 is installed in the middle of the rotating shaft 22, the second belt pulley 30 is rotatably installed on the lower portion of the front side of the support plate 2, the flat belt 31 is connected between the second belt pulley 30 and the first belt pulley 29, the first bevel gear 32 is installed on the front side of the second belt pulley 30, the bearing seat 33 is installed on the right side in the disinfection liquid box 28, the stirring rod 34 is connected in the bearing seat 33, the stirring blade 35 is installed on the stirring rod 34, the stirring blade 35 is located in the disinfection liquid box 28, the second bevel gear 36 is installed on the right end of the stirring rod 34, and. When the motor 3 rotates to drive the rotating shaft 22 to rotate, the first belt pulley 29 is driven to rotate, the flat belt 31 drives the second belt pulley 30, so as to drive the first bevel gear 32 and the second bevel gear 36 to rotate, the stirring blade 35 rotates along with the first bevel gear and the second bevel gear, so that the disinfectant in the disinfectant tank 28 is stirred, and the disinfectant can be prevented from precipitating.
Because still include spring 37 and steel ball 38, stirring vane 35 right side lower part is connected with spring 37, and spring 37 end connection has steel ball 38. When the motor 3 rotates to drive the stirring blade 35 to rotate, the spring 37 is driven to rotate, so as to drive the steel balls 38 to rotate, and the disinfectant can be stirred more uniformly.
Because still including fan 7, the diaphragm 6 middle part of higher authority is opened has opening 39, and the diaphragm 6 bottom of higher authority is installed fan 7. After the disinfection is finished, the operator turns on the fan 7 to dry the crutch. After drying, the fan 7 is turned off.
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.