CN113152346A - Blowing and sucking safety conversion device of blowing and sucking machine - Google Patents

Abstract

The invention discloses a blowing and sucking safety conversion device of a blowing and sucking machine, which comprises a blowing and sucking machine shell, a blowing and sucking conversion part, a rotating ring and a machine shell cover, switch module, spacing subassembly, be equipped with the triangle arch on the swivel collar, limit slot, swivel collar and collar normal running fit, be equipped with the bulge loop on the quick-witted casing cover, the bulge loop cooperates and carries on spacingly to the swivel collar with the collar, the conversion parts of blowing and sucking inserts in the bulge loop and with swivel collar normal running fit, the last switch that is equipped with of switch module pushes away the button, the conversion parts of blowing and sucking passes limit slot and pushes away the button with the switch and contradict under the switch-on circuit position, the switch pushes away the button and breaks away from with the conversion parts of blowing and sucking under the switch-off circuit position, spacing subassembly dismantlement formula is connected on the blowing and sucking machine casing, be equipped with the V-arrangement arch on the spacing subassembly, preceding spacing piece, before the switch-on circuit position when switching-on circuit position to the switch. The invention has the advantage that the buffer position is removed, thereby achieving the effect of prolonging the conversion operation time.

Description

Blowing and sucking safety conversion device of blowing and sucking machine

Technical Field

The invention relates to the field of garden tools, in particular to a blowing and sucking safety conversion device of a blowing and sucking machine.

Background

The blowing and sucking machine integrates two functions of blowing and sucking. Generally, the blowing and sucking machine has two modes, when the blowing and sucking machine is in a blowing mode, the high-speed airflow blown from the blowing pipe blows and gathers leaves scattered on the ground; when the blowing and sucking machine is in an air suction mode, air suction flow is formed to suck the ground leaves and dust into the collecting device, and the cleaning of the ground leaves is completed. When the blowing mode is switched to the air suction mode, the blowing and suction pipe devices need to be replaced to realize the switching. When the blowing and sucking device is replaced, the motor and the fan are exposed outside without any protection, and if the motor and the fan are still running, a user can touch the blowing and sucking device carelessly, and the result is unimaginable.

With the popularization of mechanization, more and more users use the blowing and sucking machine to replace manual actions. In order to improve the safety in use of the machine in the market, the switching structure mostly adopts the mode of knob or screw to prolong the operating time of user's change blowing, inhaling the device, but the switching structure design is simple, convenient easy removable, because the simple design of structure, easy dismantlement appears the machine easily and does not stop or fail to stop completely, just changes the action, the phenomenon that the robot wounded people appears. And the design of part of conversion structures is complex, and the operation is inconvenient.

Therefore, it is necessary to design a safe converting device for blowing and sucking of a blowing and sucking machine, which has a simple structure, is convenient to operate and is safe to use.

Disclosure of Invention

The invention provides a new blowing and sucking safety conversion device of a blowing and sucking machine, aiming at the defects of simple design, easy disassembly or inconvenient operation and the like of the blowing and sucking safety conversion device in the prior art.

In order to solve the technical problems, the invention is realized by the following technical scheme:

a blowing and sucking safety conversion device of a blowing and sucking machine comprises a blowing and sucking machine shell and a blowing and sucking conversion component, wherein the blowing and sucking conversion component is an air inlet cover or an air suction pipe, the air inlet cover and the blowing and sucking machine shell are matched to form an air blowing mode, the air suction pipe and the blowing and sucking machine shell are matched to form an air suction mode, the blowing and sucking machine further comprises a rotating ring, a machine shell cover, a switch component, a limiting component and a tension spring, the blowing and sucking machine shell is provided with an installation ring, the rotating ring is provided with a triangular bulge and a limiting groove, the rotating ring is in running fit with the installation ring, two ends of the tension spring are respectively fixed on the blowing and sucking machine shell and the rotating ring, the machine shell cover is in dismounting fit with the blowing and sucking machine shell, the machine shell cover is provided with a convex ring, the convex ring is matched with the installation ring and limits the rotating ring, the blowing and sucking conversion component is inserted into the convex ring and is in running fit with the rotating ring, switch module card is gone into in the suction machine casing, the last switch that is equipped with of switch module pushes away the button, the switch push away the button with the cooperation of the conversion parts of suction and blowing forms switch-on circuit position or off-circuit position, the switch-on circuit position is down the suction conversion parts passes the restriction groove and with the switch pushes away the button and contradicts, the off-circuit position is down the switch push away the button with the suction conversion parts breaks away from, the restriction subassembly dismantlement formula is connected on the suction machine casing, be equipped with V-arrangement arch, preceding stopper on the restriction subassembly, the V-arrangement arch with the protruding conflict of triangle, the switch-on circuit position to during the switching off-circuit position the protruding promotion of V-arrangement rotatory circle counter-clockwise turning, preceding stopper with the suction conversion parts block is demolishd buffer position.

In the blowing and sucking safety conversion device of the blowing and sucking machine, the blowing and sucking conversion part is detachably connected to a casing of the blowing and sucking machine, the blowing and sucking conversion part is provided with an air inlet cover or an air suction pipe in 2 forms and respectively corresponds to two modes of the blowing and sucking machine, and in the conversion process of the blowing mode and the air suction mode, the rotating ring, the casing cover, the switch assembly, the limiting assembly and the tension spring jointly play a role in prolonging the conversion operation time, so that the blowing and sucking machine has sufficient stop time, the condition that people are injured by inertial rotation after the blowing and sucking machine is powered off is avoided, and the use safety of the blowing and sucking machine is improved.

The blowing and sucking machine comprises a blowing and sucking conversion component, a switch push button, a switch assembly, a switch push button, a switch connecting position and a blowing and sucking switching component, wherein the switch assembly controls the on-off of a circuit, the switch push button is linked with the switch assembly, when the blowing and sucking conversion component is installed and is pressed tightly against the switch push button, the blowing and sucking machine is in a circuit connecting position, the blowing and sucking machine works normally, and when the blowing and sucking conversion component is dismantled and is separated from the switch push button, the switch connecting position is formed, and the blowing and sucking machine stops working.

The rotating ring is sleeved on the mounting ring of the blowing and sucking machine shell, the rotating ring can play a role of limiting the blowing and sucking conversion part under the condition of switching on a circuit, the rotating ring can rotate at the center of the rotating ring and rotate relative to the blowing and sucking machine shell, and the limiting assembly and the tension spring play a role of limiting the rotating angle of the rotating ring together. The V-shaped protrusion of the limiting assembly is abutted against the triangular protrusion of the rotating ring, and the effect of pushing the rotating ring to rotate anticlockwise is achieved. When the V-shaped bulge pushes the rotating ring to rotate counterclockwise for a certain angle, the front limiting block is clamped with the blowing and sucking conversion component, and the blowing and sucking conversion component is still clamped in the shell of the blowing and sucking machine and cannot be dismounted, namely, the dismounting buffer position is formed, so that the effect of prolonging the conversion operation time is achieved.

When current stopper and the separation of converting element are inhaled to the blowing, the converting element can be demolishd from the blowing machine casing of inhaling, and the extension spring plays the effect of rotatory circle that resets, conveniently installs converting element again.

The convex ring on the machine shell cover is matched with the mounting ring on the blowing and sucking machine shell, so that the rotating ring is limited at a preset position, the rotating ring is prevented from being separated, and meanwhile, the effect of protecting the blowing and sucking machine shell can be achieved.

Preferably, the above-mentioned blowing and sucking safety conversion device of blowing and sucking machine, the last equipartition of bulge loop has first spacing groove, the equipartition of collar has the second spacing groove, first spacing groove the second spacing groove the position in restricted groove all aligns, the side of blowing and sucking conversion part is equipped with L shape spacing portion and square spacing portion, square spacing portion passes first spacing groove the second spacing groove and pass through the second spacing groove is spacing, L shape spacing portion passes first spacing groove the second spacing groove and with the switch pushes away the button and contradicts.

The first limiting groove, the second limiting groove and the limiting groove are aligned in position, so that the blowing and sucking conversion component can be smoothly inserted into the blowing and sucking machine shell, and meanwhile, the L-shaped limiting part and the square limiting part are guided and limited. Under the effect of extension spring, first spacing groove staggers with the second spacing groove to the rotating ring to reach the effect of spacing suction conversion parts.

Preferably, in the above safety switching device for blowing and sucking of a blowing and sucking machine, the head of the switch push button has a first clamping portion, a second clamping portion and a third clamping portion, one end of the L-shaped limiting portion is an arc surface, the second clamping portion is matched with the arc surface when the circuit is switched on, and the first clamping portion and the third clamping portion are abutted against the rotating ring together when the circuit is switched off.

The second clamping part is matched with the cambered surface, so that the circuit position can be switched rapidly and smoothly, the first clamping part and the third clamping part are abutted against the rotating ring together, the switch push button can be better limited at the position of disconnecting the circuit, and the use safety of the switch push button is ensured.

Preferably, in the above safety switching device for blowing and sucking of a blowing and sucking machine, a square opening is arranged on the blowing and sucking switching part, and the square opening is matched with the front limiting block.

The square opening is matched with the front limiting block, so that the blowing and sucking conversion component can be better limited, the device smoothly enters a dismounting buffer position, and the effect of prolonging the conversion operation time is achieved.

Preferably, in the above safety switching device for blowing and sucking of a blowing and sucking machine, the limiting grooves are uniformly distributed on the rotating ring, barbs are arranged on the limiting grooves, and the barbs respectively limit the L-shaped limiting part and the square limiting part at the position of the switch-on circuit.

The barb structure on the limiting groove can be matched with a second limiting groove of the blowing and sucking machine shell to clamp the L-shaped limiting part and the square limiting part, so that the blowing and sucking conversion component is more stably installed at the position of the switch-on circuit.

Preferably, the blowing and sucking safety conversion device of the blowing and sucking machine is characterized in that a limiting rib is arranged on a casing of the blowing and sucking machine, and the limiting rib abuts against the rotating ring and limits the rotating ring when the rotating ring rotates clockwise to the maximum angle.

The extension spring drives the rotatory circle clockwise turning, and the biggest angle of the clockwise turning of rotatory circle of spacing muscle restriction.

Preferably, the above-mentioned safety switching device for blowing and sucking of a blowing and sucking machine, the limiting component includes a fixing base and a limiting push button, the fixing base is detachably connected to the casing of the blowing and sucking machine, the limiting push button is in sliding fit with the fixing base, a first gear groove and a second gear groove are provided on two sides of the limiting push button, 2 studs are provided on the casing cover, the studs are respectively located on two sides of the limiting push button, the stud is engaged with the first gear groove in the circuit connecting position, and the stud is engaged with the second gear groove in the buffer detaching position.

The fixed seat plays a role in fixing the limiting assembly, the outer contours of two sides of the limiting push button are provided with a first gear groove and a second gear groove, 2 studs of the machine shell cover and the limiting push button are matched to form 2 clamping positions which respectively correspond to the circuit connecting position and the buffer dismounting position of the blowing and sucking machine, and the blowing and sucking mode of the blowing and sucking machine is stronger in conversion operability and simpler and easier.

Preferably, the blowing and sucking safety conversion device of the blowing and sucking machine is characterized in that a first U-shaped limiting block is arranged on the fixing seat, a second U-shaped limiting block is arranged on the limiting push button, and the first U-shaped limiting block is respectively matched with the second U-shaped limiting block and the V-shaped protrusion and limits the limiting push button.

The first U-shaped limiting block is matched with the second U-shaped limiting block to limit the maximum distance of the limiting push button sliding forwards, and the first U-shaped limiting block is matched with the V-shaped bulge to limit the maximum distance of the limiting push button sliding backwards.

Preferably, in the above safety switching device for blowing and sucking of a blowing and sucking machine, a clamping groove is formed in a casing of the blowing and sucking machine, and the switch assembly is matched with the clamping groove.

The draw-in groove can be injectd the switch module in predetermineeing the position better, guarantees that the switching action of switch module is effective.

Preferably, the safety switching device for blowing and sucking of the blowing and sucking machine is further provided with a return spring on the switch component, and two ends of the return spring are respectively abutted against the switch push button and the clamping groove.

The reset spring is used for pushing the switch push button, so that the switch push button automatically closes the circuit after the blowing and sucking conversion component is detached.

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

1. the blowing and sucking conversion component is simple in integral structure, the installation operation of the blowing and sucking conversion component is very convenient, and the blowing and sucking conversion component can be installed only by aligning and pressing the L-shaped limiting part and the square limiting part of the blowing and sucking conversion component with the second limiting groove of the blowing and sucking machine shell.

2. The invention is provided with the dismounting buffer position, plays a role in prolonging the switching operation time and ensures that the blowing and sucking machine has sufficient stop time. When the blowing and sucking conversion part is dismantled, a second gear groove of the limiting push button needs to be pushed to the position of the stud and clamped, the upward-pulling blowing and sucking conversion part is at the dismantling buffering position, meanwhile, the L-shaped limiting part is separated from the switch push button, the switch assembly is disconnected with a circuit, the machine stops operating, the circuit is automatically disconnected when the blowing and sucking conversion part is dismantled, and the operation safety is guaranteed.

3. If the blowing and sucking conversion part needs to be completely moved out of the blowing and sucking machine shell, the blowing and sucking conversion part can be completely moved out of the blowing and sucking machine shell only by keeping the action of the upper blowing and sucking conversion part and enabling the first gear groove of the limiting push button to be pulled back to the position of the stud and clamped, so that the operation time of an operator for converting between different working modes of the blowing and sucking machine is prolonged, the machine has sufficient stop time, the condition that the machine hurts people is reduced, and the use safety of the machine is improved.

Drawings

FIG. 1 is an exploded view of the present invention in a blowing mode;

FIG. 2 is a schematic structural view of the present invention in an air suction mode;

FIG. 3 is a schematic structural diagram of the hiding casing cover according to the present invention;

FIG. 4 is a first schematic structural view of the hidden enclosure of the present invention in a blowing mode;

FIG. 5 is a schematic structural view of the hidden casing cover in the blowing mode according to the present invention;

FIG. 6 is a schematic view of the structure of the present invention with the buffering position removed to hide the casing cover;

FIG. 7 is a schematic structural view of a limit button according to the present invention;

FIG. 8 is a schematic view of the structure of the air inlet cover of the present invention;

FIG. 9 is a schematic structural view of an aspiration channel of the present invention;

FIG. 10 is a schematic view of a switch push button according to the present invention;

Detailed Description

The invention will be described in further detail below with reference to the accompanying figures 1-10 and the detailed description, but they are not intended to limit the invention:

example 1

A blowing and sucking safety conversion device of a blowing and sucking machine comprises a blowing and sucking machine shell 4 and a blowing and sucking conversion component 1, wherein the blowing and sucking conversion component 1 is an air inlet cover or an air suction pipe, the air inlet cover and the blowing and sucking machine shell 4 are matched to form an air blowing mode, the air suction pipe and the blowing and sucking machine shell 4 are matched to form an air suction mode, the blowing and sucking safety conversion device further comprises a rotating ring 5, a machine shell cover 2, a switch component 3, a limiting component 6 and a tension spring 7, a mounting ring 41 is arranged on the blowing and sucking machine shell 4, a triangular bulge 51 and a limiting groove 52 are arranged on the rotating ring 5, the rotating ring 5 is rotationally matched with the mounting ring 41, two ends of the tension spring 7 are respectively fixed on the blowing and sucking machine shell 4 and the rotating ring 5, the machine shell cover 2 is detachably matched with the blowing and sucking machine shell 4, a bulge ring 21 is arranged on the machine shell cover 2, the bulge ring 21 is matched with the mounting ring 41 and limits the rotating ring 5, the converting part 1 is inserted into the convex ring 21 and is in running fit with the rotating ring 5, the switch component 3 is clamped into the blowing and sucking machine shell 4, the switch component 3 is provided with a switch push button 31, the switch push button 31 is matched with the switching part 1 and forms a switch-on circuit position or a switch-off circuit position, the switching part 1 penetrates through the limiting groove 52 and is abutted against the switch push button 31 under the switch-on circuit position, the switch push button 31 is separated from the switching part 1 under the switch-off circuit position, the limiting component 6 is detachably connected onto the blowing and sucking machine shell 4, the limiting component 6 is provided with a V-shaped bulge 64 and a front limiting block 63, the V-shaped bulge 64 is abutted against the triangular bulge 51, and the V-shaped bulge 64 pushes the rotating ring 5 to rotate anticlockwise when the switch-on circuit position is converted to the switch-off circuit position, the front limiting block 63 is clamped with the blowing and sucking conversion component 1 to form a dismounting buffering position.

When the air inlet cover or the air suction pipe is installed, the air inlet cover or the air suction pipe is only required to be sequentially inserted into the convex ring 21, the installation ring 41 and the limiting groove 52, and the switch push button 31 is pushed to the circuit connection position, so that the blowing mode or the air suction mode can be started, and the operation is convenient and fast.

When the air inlet cover needs to be removed, the limiting component 6 is firstly pushed, meanwhile, the V-shaped protrusion 64 pushes the triangular protrusion 51, the rotating ring 5 rotates anticlockwise, the limiting groove 52 relieves the limitation on the air inlet cover, then, an operator pulls up the air inlet cover, the switch push button 31 is separated from the blowing and sucking conversion component 1, a circuit is disconnected, meanwhile, the front limiting block 63 is clamped with the blowing and sucking conversion component 1 to form a removal buffering position, finally, the operator pulls back the limiting component 6, the front limiting block 63 is separated from the blowing and sucking conversion component 1, and the blowing and sucking conversion component 1 is smoothly removed from the blowing and sucking machine shell 4.

Preferably, the protruding ring 21 is uniformly provided with first limiting grooves 211, the mounting ring 41 is uniformly provided with second limiting grooves 411, the positions of the first limiting grooves 211, the positions of the second limiting grooves 411 and the positions of the limiting grooves 52 are aligned, the side surface of the blowing and sucking conversion component 1 is provided with an L-shaped limiting part 11 and a square limiting part 12, the square limiting part 12 penetrates through the first limiting grooves 211 and the second limiting grooves 411 and is limited through the second limiting grooves 411, and the L-shaped limiting part 11 penetrates through the first limiting grooves 211 and the second limiting grooves 411 and is abutted against the switch push button 31.

Preferably, the head of the switch push button 31 has a first locking portion 311, a second locking portion 312, and a third locking portion 313, one end of the L-shaped limiting portion 11 is an arc surface 111, the second locking portion 312 is matched with the arc surface 111 in the circuit connection position, and the first locking portion 311 and the third locking portion 313 abut against the rotating ring 5 in the circuit disconnection position.

Preferably, a square opening 13 is arranged on the blowing and sucking conversion component 1, and the square opening 13 is matched with the front limiting block 63.

Preferably, the limiting grooves 52 are uniformly distributed on the rotating ring 5, barbs 53 are arranged on the limiting grooves 52, and the L-shaped limiting portion 11 and the square limiting portion 12 are respectively limited by the barbs 53 at the circuit connection position.

Preferably, a limiting rib 42 is arranged on the blowing and sucking machine shell 4, and when the rotating ring 5 rotates clockwise to the maximum angle, the limiting rib 42 is abutted against the rotating ring 5 and limits the rotating ring 5.

Preferably, the limiting assembly 6 includes a fixing seat 62 and a limiting push button 61, the fixing seat 62 is detachably connected to the blowing and sucking machine casing 4, the limiting push button 61 is in sliding fit with the fixing seat 62, a first gear groove 613 and a second gear groove 612 are arranged on two sides of the limiting push button 61, 2 studs 22 are arranged on the machine casing cover 2, the studs 22 are respectively located on two sides of the limiting push button 61, the stud 22 is engaged with the first gear groove 613 at the position of the connection circuit, and the stud 22 is engaged with the second gear groove 612 at the position of the detachment buffer.

Preferably, a first U-shaped limiting block 622 is disposed on the fixing base 62, a second U-shaped limiting block 611 is disposed on the limiting push button 61, and the first U-shaped limiting block 622 is respectively engaged with the second U-shaped limiting block 611 and the V-shaped protrusion 64 to limit the limiting push button 61.

Preferably, a clamping groove 43 is formed in the blowing and sucking machine shell 4, and the switch component 3 is matched with the clamping groove 43.

Preferably, the switch assembly 3 is further provided with a return spring 32, and two ends of the return spring 32 respectively abut against the switch push button 31 and the clamping groove 43.

When the blowing and sucking machine is switched from the blowing mode to the air suction mode, an operator needs to remove the air inlet cover from the blowing and sucking machine shell 4 and install the air suction pipe, and the operation steps of removing the air inlet cover are as follows: step one, pushing the limit push button 61, namely pushing the triangular protrusion 51 by the V-shaped protrusion 64, overcoming the pulling force of the tension spring 7 to enable the rotating ring 5 to rotate anticlockwise, releasing the limit of the L-shaped limit part 11 by the barb 53, continuously pushing the limit push button 61 until the second limit groove 612 is clamped with the stud 22, and at the moment, inserting the front limit block 63 into the square opening 13; and step two, the operator pulls up the air inlet cover until the front limiting block 63 abuts against the square opening 13, the air inlet cover cannot move upwards continuously, namely a dismantling buffer position is formed, at the moment, the cambered surface 111 is separated from the second clamping part 312, the first clamping part 311 and the third clamping part 313 abut against the side surface of the rotating ring 5 together, and the circuit is disconnected. And step three, the operator pulls back the limiting push button 61 until the first gear groove 613 is clamped with the stud 22, the front limiting block 63 is separated from the square opening 13, and then the air inlet cover is continuously pulled up, so that the air inlet cover can be completely removed, and at the moment, the rotating ring 5 rotates clockwise to reset under the action of the tension spring 7, so that the positions of the first limiting groove 211, the second limiting groove 411 and the limiting groove 52 are aligned.

The steps of installing the air suction pipe are as follows: an operator aligns the L-shaped limiting part 11 and the square limiting part 12 of the air suction pipe with the first limiting groove 211 of the casing cover 2, then presses the air suction pipe downwards until the cambered surface 111 collides with the second clamping part 312, so that a circuit is switched on, and the installation is completed.

When the blowing and sucking machine is switched from the air suction blowing mode to the air blowing mode, an operator needs to remove the air suction pipe from the blowing and sucking machine shell 4 and install the air inlet cover, the operation of removing the air suction pipe is consistent with the operation of removing the air inlet cover, and the operation of installing the air inlet cover is consistent with the operation of installing the air suction pipe.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims (10)

1. The utility model provides a pressure-vaccum safety conversion equipment of pressure-vaccum machine, includes pressure-vaccum machine casing (4), pressure-vaccum converting part (1) is air inlet cover or aspiration channel, the air inlet cover with pressure-vaccum machine casing (4) cooperation forms the mode of blowing, the aspiration channel with pressure-vaccum machine casing (4) cooperation forms the mode of induced drafting, its characterized in that: still include swivel collar (5), quick-witted clamshell (2), switch module (3), spacing subassembly (6), extension spring (7), be equipped with collar (41) on suction machine casing (4), be equipped with triangle arch (51), limited slot (52) on swivel collar (5), swivel collar (5) with collar (41) normal running fit, the both ends of extension spring (7) are fixed respectively in suction machine casing (4), on swivel collar (5), quick-witted clamshell (2) with suction machine casing (4) dismantlement formula cooperation, be equipped with bulge loop (21) on quick-witted clamshell (2), bulge loop (21) with collar (41) cooperation is just spacing swivel collar (5), suction conversion parts (1) insert in bulge loop (21) and with swivel collar (5) normal running fit, switch module (3) card is gone into in suction machine casing (4), the switch component (3) is provided with a switch push button (31), the switch push button (31) is matched with the blowing and sucking conversion component (1) and forms a switch-on circuit position or a switch-off circuit position, the blowing and sucking conversion component (1) penetrates through the limiting groove (52) and is abutted to the switch push button (31) under the switch-on circuit position, the switch push button (31) is separated from the blowing and sucking conversion component (1) under the switch-off circuit position, the limiting component (6) is detachably connected to the blowing and sucking machine shell (4), the limiting component (6) is provided with a V-shaped protrusion (64) and a front limiting block (63), the V-shaped protrusion (64) is abutted to the triangular protrusion (51), and the V-shaped protrusion (64) pushes the rotating ring (5) to rotate anticlockwise when the switch-on circuit position is converted to the switch-off circuit position, the front limiting block (63) is clamped with the blowing and sucking conversion component (1) to form a dismounting buffer position.

2. The blowing and suction safety switching device of the blowing and suction machine according to claim 1, characterized in that: the equipartition has first spacing groove (211) on bulge loop (21), the equipartition has second spacing groove (411) on installing ring (41), first spacing groove (211) second spacing groove (411) the position in spacing groove (52) all aligns, the side of converting means (1) is inhaled in the blowing is equipped with spacing portion of L shape (11) and square spacing portion (12), square spacing portion (12) are passed first spacing groove (211) second spacing groove (411) and pass through second spacing groove (411) are spacing, the spacing portion of L shape (11) is passed first spacing groove (211) second spacing groove (411) and with switch push button (31) are contradicted.

3. The blowing and sucking safety conversion device of the blowing and sucking machine according to claim 2, characterized in that: the head of switch push button (31) has first card portion (311), second card portion (312), third card portion (313), the one end of the spacing portion of L shape (11) is cambered surface (111), under the switch-on circuit position second card portion (312) with cambered surface (111) cooperation, under the switch-off circuit position first card portion (311) with third card portion (313) jointly with rotatory circle (5) contradict.

4. The blowing and suction safety switching device of the blowing and suction machine according to claim 1, characterized in that: the blowing and sucking conversion component (1) is provided with a square opening (13), and the square opening (13) is matched with the front limiting block (63).

5. The blowing and sucking safety conversion device of the blowing and sucking machine according to claim 2, characterized in that: the limiting grooves (52) are uniformly distributed on the rotating ring (5), barbs (53) are arranged on the limiting grooves (52), and the L-shaped limiting portion (11) and the square limiting portion (12) are limited by the barbs (53) respectively under the circuit connecting position.

6. The blowing and suction safety switching device of the blowing and suction machine according to claim 1, characterized in that: be equipped with spacing muscle (42) on suction machine casing (4), rotatory circle (5) clockwise rotation is when the maximum angle spacing muscle (42) with rotatory circle (5) are contradicted and are right rotatory circle (5) are carried on spacingly.

7. The blowing and suction safety switching device of the blowing and suction machine according to claim 1, characterized in that: the limiting assembly (6) comprises a fixing seat (62) and a limiting push button (61), the fixing seat (62) is detachably connected with the blowing and sucking machine shell (4), the limiting push button (61) is in sliding fit with the fixing seat (62), a first gear groove (613) and a second gear groove (612) are arranged on two sides of the limiting push button (61), 2 studs (22) are arranged on the machine shell cover (2), the studs (22) are respectively arranged on two sides of the limiting push button (61), the studs (22) are clamped with the first gear groove (613) when the circuit is switched on, and the studs (22) are clamped with the second gear groove (612) when the buffer position is removed.

8. The converting device of claim 7, wherein: the fixing seat (62) is provided with a first U-shaped limiting block (622), the limiting push button (61) is provided with a second U-shaped limiting block (611), and the first U-shaped limiting block (622) is matched with the second U-shaped limiting block (611) and the V-shaped protrusion (64) respectively and limits the limiting push button (61).

9. The blowing and suction safety switching device of the blowing and suction machine according to claim 1, characterized in that: a clamping groove (43) is formed in the blowing and sucking machine shell (4), and the switch component (3) is matched with the clamping groove (43).

10. The converting device of claim 9, wherein: still be equipped with reset spring (32) on switch module (3), reset spring (32)'s both ends respectively with switch push button (31), draw-in groove (43) are contradicted.

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