CN211713840U - Electric blowing and sucking machine - Google Patents
Electric blowing and sucking machine Download PDFInfo
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- CN211713840U CN211713840U CN201921739198.XU CN201921739198U CN211713840U CN 211713840 U CN211713840 U CN 211713840U CN 201921739198 U CN201921739198 U CN 201921739198U CN 211713840 U CN211713840 U CN 211713840U
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Abstract
The utility model discloses an electric blowing and sucking machine, which comprises a casing, a motor, an impeller, a protective cover and a safety mechanism for starting and stopping the motor, wherein the safety mechanism comprises a first micro switch, a trigger rod and a first pressing block, and the casing is provided with a through hole for the first pressing block to pass through; when the lock catch is opened, the first pressing block is far away from the trigger rod, and the trigger rod is far away from the first microswitch so that the motor stops running; the lock catch comprises a first clamping groove and a clamping block, the first clamping groove is formed in one of the second ends of the casing and the protective cover, and the clamping block is arranged on the other of the second ends of the casing and the protective cover. The clamping block extends into the first clamping groove to connect the protective cover and the shell, the clamping block can slide rapidly, the operation is more convenient and rapid compared with a screw rod, the protective cover and the shell are separated, the trigger rod is far away from the first microswitch, the motor stops running, and therefore safety is guaranteed.
Description
Technical Field
The utility model relates to a suction machine field, concretely relates to electronic suction machine.
Background
The electric blowing and sucking machine has two functions of blowing and sucking, leaves, dust and the like can be sucked into the dust collecting bag when the air sucking function is used, and the leaves, the dust and the like can be blown away when the air blowing function is used.
For example, chinese utility model patent with application number CN201820328470.4 (publication number CN208183616U) discloses "a blowing and sucking machine", which includes a main housing, the main housing is provided with an air inlet and an air outlet, one end of the air inlet is provided with a protective cover and a suction pipe, one end of the air outlet is provided with a blowpipe, the main housing is further provided with a motor and a fan, the motor is connected with the fan, the main housing at the air inlet is provided with a locking mechanism, the locking mechanism includes a locking part and a driving part, the locking part is movably connected in the main housing, the driving part is connected with the motor, the protective cover or the suction pipe is locked on the main housing through the locking part, and the driving part is triggered to be switched on and off through; the locking mechanism comprises a screw rod, the locking part is movably connected in the main shell through the screw rod, the locking part comprises a first nut, a first connecting rod and a second connecting rod, the first connecting rod is arranged on the screw rod through the first nut, and the second connecting rod is arranged on the main shell.
Above-mentioned patent is through the interact of lead screw, first connecting rod and second connecting rod, and first connecting rod is locking state when guaranteeing the separation of second connecting rod and drive division to make operating personnel when opening the protection casing or changing the straw, have sufficient time to guarantee that the motor brings harm for the operator because of the inertia rotation that produces after the outage, the security is higher. However, the screw rod is screwed down or screwed out, so that the screw rod cannot be screwed in place in one step and is not convenient to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above-mentioned prior art, provide a convenient to use and higher electronic pressure-vaccum machine of security.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an electronic pressure-vaccum machine, includes casing, motor, impeller, protection casing and is used for opening the safety mechanism who stops the motor, and the motor setting is in the casing, and the impeller setting just links to each other with the motor shaft of motor in the casing, and the protection casing is installed outside the casing and can be opened or cover the first opening of casing, the first end and the casing of protection casing rotate to be connected, the second end of protection casing can be dismantled through hasp and casing and be connected its characterized in that:
the safety mechanism comprises a first microswitch arranged in the shell, a trigger rod movably arranged in the shell and a first pressing block arranged on one side of the protective cover facing the shell, and the shell is provided with a through hole for the first pressing block to pass through; when the second end of the protective cover is connected with the shell through the lock catch, the first pressing block can abut against the trigger rod after penetrating through the through hole, and the trigger rod triggers the first microswitch to start the motor; when the lock catch is opened, the first pressing block is far away from the trigger rod, and the trigger rod is far away from the micro switch to stop the motor from running;
the lock catch comprises a first clamping groove and a clamping block capable of being inserted into the first clamping groove, the first clamping groove is formed in one of the second ends of the shell and the protective cover, and the clamping block is arranged on the other of the second ends of the shell and the protective cover.
The movable connection structure of the trigger lever and the casing can be various, preferably, a rotating shaft and a torsion spring sleeved outside the rotating shaft are arranged in the casing, and the torsion spring is abutted against the trigger lever to enable the trigger lever to move relative to the casing. The trigger rod moves relative to the shell through a torsion spring.
As the improvement, the fixture block sets up on the casing, first draw-in groove sets up the position that corresponds at the second end of protection casing, the fixture block has first spout and the second spout that communicates with first spout including the joint portion that can stretch into first draw-in groove and the operation portion of the user's operation of being convenient for on the casing, and the joint portion of fixture block can hold in first spout, and outside the operation portion of fixture block stretched out the second spout, external force acted on the operation portion back, joint portion can stretch out first spout and stretch into in the first draw-in groove of protection casing. Through acting on the operation portion, first spout or keep away from first spout can be stretched into to joint portion, correspondingly, the protection casing links to each other or the separation with the casing.
In order to enable the clamping block to automatically reset, the lock catch further comprises a first spring which enables the clamping block to have a tendency of extending out of the first sliding groove, one end of the first spring abuts against the inner wall of the shell, and the other end of the first spring abuts against the clamping block. Through setting up first spring, loosen the fixture block like this after, the fixture block can be under the effect of first spring automatic recovery to stretch out the outer state of first spout.
As an improvement, the electric blowing and sucking machine further comprises an air suction pipe, a second clamping groove capable of enabling the clamping block to be inserted is formed in the first end, close to the clamping block, of the air suction pipe, and the second end, far away from the second clamping groove, of the air suction pipe is detachably connected with the machine shell; a second pressing block which can also abut against the trigger rod is arranged at the corresponding position of the air suction pipe; when the first end of the air suction pipe is installed in place, the second pressing block can also penetrate through the through hole of the machine shell and abut against the trigger rod, and the trigger rod triggers the first microswitch to start the motor; when the air suction pipe is opened, the second pressing block is far away from the trigger rod, and the trigger rod is far away from the first microswitch so that the motor stops running. Therefore, the air suction pipe and the protective cover share one clamping block, and the structure is compact.
The structure that the second end that the second draw-in groove was kept away from to the aspiration channel can dismantle with the casing and be connected can have the multiple, preferably, the second end that the second draw-in groove was kept away from to the aspiration channel has connecting portion, one side that the casing was towards the aspiration channel is provided with the crotch that is used for joint this connecting portion. The connection part is matched with the hook, so that the air suction pipe can be conveniently connected with or separated from the shell.
As the improvement, link to each other through reduction gear between motor and the impeller, the motor shaft links to each other with reduction gear's input, and reduction gear's output links to each other with the impeller. Through setting up reduction gear box, it is lower to the motor requirement like this, and the cost is lower for the impeller has suitable rotational speed and moment.
In order to conveniently detach the blowpipe, the electric blowing and sucking machine further comprises the blowpipe which is detachably connected with the machine shell and communicated with the second opening of the machine shell. Can dismantle with the casing through the blowing pipe and be connected, conveniently pull down the blowing pipe.
The structure that the blowing pipe can be dismantled with the casing and be connected can have the multiple, preferably, first through-hole has on the casing, the blowing pipe cover is established outside the second opening of casing and is had the second through-hole relative with first through-hole, electronic pressure-vaccum machine still includes button, second spring and second micro-gap switch, and the button can reciprocate in first through-hole and second through-hole, and the bottom of button has the protruding edge that upwards can offset with the casing, and the upper end and the button of second spring offset, and the lower extreme and the casing inner wall of second spring offset, and the second spring makes the button have upwards stretch out outside the second through-hole of blowing pipe and make the trend that blowing pipe and casing link to each other, can trigger second micro-gap switch and start motor after the blowing pipe installation targets in place. The button extends out of the blowing pipe to connect the blowing pipe with the shell, and the blowing pipe can be separated from the shell after the button is pressed inwards.
Compared with the prior art, the utility model has the advantages of: through setting up first micro-gap switch, the trigger bar, first press briquetting and fixture block, stretch into first draw-in groove with the fixture block and link to each other protection casing and casing, the fixture block can slide to the position that needs fast, compare the lead screw operation more convenient and fast, first press briquetting on the protection casing simultaneously can offset with the trigger bar, the trigger bar triggers first micro-gap switch and makes the motor start, make the protection casing and the casing link to each other the back like this, the motor just starts, the in-process of protection casing and casing separation, first micro-gap switch is kept away from to the trigger bar, motor stall, the security has been guaranteed like this.
Drawings
FIG. 1 is a schematic view of the embodiment of the present invention with air suction function;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is another exploded view of the embodiment of the present invention with the suction duct removed;
FIG. 4 is a schematic view of FIG. 1 with half of the housing removed and with the suction duct removed;
FIG. 5 is a schematic view of the embodiment of the present invention with a blowing function;
FIG. 6 is a schematic view from another angle of FIG. 5;
fig. 7 is a longitudinal sectional view of fig. 5.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 7, it is a preferred embodiment of the electric blowing and sucking machine of the present invention. The electric blowing and sucking machine comprises a machine shell 1, a motor 2, an impeller 3, a reduction gear box 7, an air suction pipe 4, a blowing pipe 5, a protective cover 6, a lock catch, a safety mechanism, a button 400, a second spring 600, a second microswitch 900 and other main components.
Referring to fig. 3 and 7, the housing 1 has a first sliding slot 13, a second sliding slot 14 communicating with the first sliding slot 13, a first through hole 11 for passing the button 400, and a through hole 16 for passing a first pressing block 61 described below, and the first sliding slot 13 and the second sliding slot 14 are used for cooperating with the latch. Referring to fig. 4, a rotating shaft 17 and a torsion spring 12 sleeved outside the rotating shaft 17 are further disposed in the housing 1, and the torsion spring 12 abuts against a trigger rod 800 described below to enable the torsion spring 12 to move relative to the housing 1.
Referring to fig. 7, the motor 2 is disposed inside the cabinet 1.
Referring to fig. 7, an impeller 3 is also disposed in the casing 1 and connected to the motor shaft of the motor 2, the impeller 3 may be constructed in a conventional manner, for example, the impeller 3 may be provided with a blade to shred the sucked leaves.
Referring to fig. 7, a reduction gear box 7 connects the motor 2 and the impeller 3, a motor shaft is connected to an input end of the reduction gear box 7, and an output end of the reduction gear box 7 is connected to the impeller 3.
Referring to fig. 1 to 4, the protective cover 6 is installed outside the housing 1 and can open or cover the first opening of the housing 1, the protective cover 6 is in a grid shape and can communicate the inside of the housing 1 with the outside, the first end of the protective cover 6 is hinged with the housing 1 to realize rotary connection, and the second end of the protective cover 6 is detachably connected with the housing 1 through a lock catch; specifically, the hasp includes first draw-in groove 100, can insert the fixture block 300 of first draw-in groove 100 and make the fixture block 300 have the first spring 500 who stretches out the trend of first spout 13, fixture block 300 sets up on casing 1, first draw-in groove 100 sets up the position that corresponds at the second end of protection casing 6, fixture block 300 is including the joint portion 301 that can stretch into first draw-in groove 100 and the operating portion 302 of being convenient for user's operation, joint portion 301 of fixture block 300 can hold in the first spout 13 of casing 1, the operating portion 302 of fixture block 300 stretches out outside the second spout 14 of casing 1, external force acts on behind the operating portion 302, joint portion 301 can stretch out first spout 13 and stretch into in the first draw-in groove 100 of the second end of protection casing 6, the one end and the casing 1 inner wall counterbalance of first spring 500 and the other end and fixture block 300 counterbalance. In order to move conveniently, the air suction pipe 4 is connected with a roller 42, and the roller 42 can drive the electric blowing and sucking machine to move under the action of external force.
Referring to fig. 7, the safety mechanism includes a first microswitch 700 disposed in the housing 1, a trigger rod 800 movably disposed in the housing 1, and a first pressing block 61 disposed on one side of the protective cover 6 facing the housing 1, wherein the trigger rod 800 is abutted against the torsion spring 12 in the housing 1 to enable the trigger rod 800 to move relative to the housing 1; when the second end of the protective cover 6 is connected with the casing 1 by the lock catch, the first pressing block 61 can abut against the trigger rod 800 after passing through the through hole 16 of the casing 1, and the trigger rod 800 triggers the first microswitch 700 to start the motor 2; when the lock catch is opened, the first pressing block 61 is far away from the trigger rod 800, and the trigger rod 800 is far away from the first microswitch 700, so that the motor 2 stops running.
Referring to fig. 1 and 2, a second slot 200, into which the fixture block 300 can also be inserted, is disposed at a first end of the air suction pipe 4 close to the fixture block 300, and a second end of the air suction pipe 4, away from the second slot 200, is detachably connected to the casing 1, specifically, a connecting portion 41 is disposed at a second end of the air suction pipe 4, away from the second slot 200, and a hook 15 for clamping the connecting portion 41 is disposed at a side of the casing 1 facing the air suction pipe 4; the suction pipe 4 is provided with a second pressing block 43 which can also abut against the trigger rod 800 at the corresponding position; when the first end of the air suction pipe 4 is installed in place, the second pressing block 43 can also pass through the through hole 16 of the machine shell 1 and abut against the trigger rod 800, and the trigger rod 800 triggers the first microswitch 700 to start the motor 2; when the air suction pipe 4 is opened, the second pressing block 43 is far away from the trigger rod 800, and the trigger rod 800 is far away from the first microswitch 700, so that the motor 2 stops running.
Referring to fig. 5, the blowpipe 5 is detachably connected to the cabinet 1 and communicates with the second opening of the cabinet 1, and specifically, referring to fig. 7, the blowpipe 5 is fitted over the second opening of the cabinet 1 and has a second through hole 51 opposite to the first through hole 11.
Referring to fig. 5 and 7, the button 400 can move up and down in the first through hole 11 and the second through hole 51, the bottom of the button 400 is provided with a convex edge 401 which can prop against the machine case 1 upwards, the upper end of the second spring 600 props against the button 400, the lower end of the second spring 600 props against the inner wall of the machine case 1, the button 400 has the tendency of extending out of the second through hole 51 of the blowpipe 5 upwards to connect the blowpipe 5 with the machine case 1 by the second spring 600, and the second microswitch 900 can be triggered to start the motor 2 after the blowpipe 5 is installed in place.
The electric blowing and sucking machine comprises the following working principle and a using method.
When the air suction function is needed, a dust bag (not shown in the figure) is sleeved outside the second opening of the shell 1; the operating part 302 of the fixture block 300 is acted again, so that the fixture block 300 is separated from the first clamping groove 100 on the protective cover 6, and then the protective cover 6 is rotated to open the first opening of the machine shell 1; then, installing the air suction pipe 4, clamping the connecting part 41 of the air suction pipe 4 with the hook 15 of the machine shell 1 to connect the second end of the air suction pipe 4 with the machine shell 1, then acting as the operating part 302 of the fixture block 300, enabling the first end of the air suction pipe 4 to be close to the fixture block 300, under the action of the first spring 500, the clamping part 301 of the fixture block 300 extends into the second clamping groove 200 of the air suction pipe 4 to connect the air suction pipe 4 with the machine shell 1, and at this time, the protective cover 6 is positioned outside the air suction pipe 4; meanwhile, in the process of installing the air suction pipe 4, the second pressing block 43 on the air suction pipe 4 presses the trigger rod 800, the trigger rod 800 triggers the first microswitch 700 after rotating, the motor 2 can be started, and the motor 2 can be started after the air suction pipe 4 is installed; under the action of the impeller 3, leaves, dust and the like enter the machine case 1 through the air suction pipe 4 and finally fall onto a dust collection bag (not shown in the figure).
When the blowing function is needed, the dust bag (not shown in the figure) at the second opening is taken down, after the dust bag acts on the operation part 302 of the fixture block 300, the fixture block 300 is separated from the second clamping groove 200 of the air suction pipe 4, so that the air suction pipe 4 is detached, meanwhile, the second pressing block 43 on the air suction pipe 4 is far away from the trigger rod 800, the trigger rod 800 is far away from the first microswitch 700 after rotating, the motor 2 stops running gradually, and thus, when the air suction pipe 4 is opened, the motor 2 is in a closed state, and the user is not easily injured by mistake; then, the protective cover 6 is rotated to act on the operation portion 302 of the fixture block 300, the operation portion 302 of the fixture block 300 extends into the first clamping groove 100 of the protective cover 6 to connect the protective cover 6 with the housing 1, meanwhile, the first pressing block 61 on the protective cover 6 presses the trigger rod 800, and the trigger rod 800 rotates to trigger the first microswitch 700, so that the motor 2 can operate only after the protective cover 6 is installed in place, and the safety is high; then, the blowpipe 5 is sleeved outside the second opening of the cabinet 1, the button 400 is pressed downward, the first through hole 11 of the cabinet 1 and the second through hole 51 of the blowpipe 5 are aligned, after the button 400 is released, the button 400 is forced upward to extend out of the cabinet 1 under the action of the second spring 600, so that the blowpipe 5 is connected with the cabinet 1, and meanwhile, the blowpipe 5 triggers the second microswitch 900. In this way, after the first microswitch 800 and the second microswitch 900 are both triggered, the motor 2 is operated, and under the action of the impeller 3, wind is blown out from the blowpipe 5, so that leaves, dust and the like can be blown away.
Claims (9)
1. The utility model provides an electronic pressure-vaccum machine, includes casing (1), motor (2), impeller (3), protection casing (6) and is used for opening the safety mechanism who stops motor (2), and motor (2) set up in casing (1), and impeller (3) set up in casing (1) and link to each other with the motor shaft of motor (2), and protection casing (6) are installed outside casing (1) and can be opened or cover the first opening of casing (1), the first end and the casing (1) of protection casing (6) rotate to be connected, the second end of protection casing (6) is held through hasp and casing (1) can dismantle and be connected its characterized in that:
the safety mechanism comprises a first microswitch (700) arranged in the machine shell (1), a trigger rod (800) movably arranged in the machine shell (1) and a first pressing block (61) arranged on one side, facing the machine shell (1), of the protective cover (6), and the machine shell (1) is provided with a through hole (16) for the first pressing block (61) to pass through; when the lock catch connects the second end of the protective cover (6) with the machine shell (1), the first pressing block (61) can abut against the trigger rod (800) after penetrating through the through hole (16), and the trigger rod (800) triggers the first microswitch (700) to start the motor (2); when the lock catch is opened, the first pressing block (61) is far away from the trigger rod (800), and the trigger rod (800) is far away from the first microswitch (700) to stop the motor (2);
the lock catch comprises a first clamping groove (100) and a clamping block (300) capable of being inserted into the first clamping groove (100), the first clamping groove (100) is arranged on one of the second ends of the casing (1) and the protective cover (6), and the clamping block (300) is arranged on the other of the second ends of the casing (1) and the protective cover (6).
2. The electric suction blower according to claim 1, wherein: the motor shell (1) is internally provided with a rotating shaft (17) and a torsion spring (12) sleeved outside the rotating shaft (17), and the torsion spring (12) is abutted against the trigger rod (800) to enable the trigger rod (800) to move relative to the motor shell (1).
3. The electric suction blower according to claim 1, wherein: fixture block (300) sets up on casing (1), first draw-in groove (100) set up the position that corresponds at the second end of protection casing (6), fixture block (300) have first spout (13) and second spout (14) with first spout (13) intercommunication including joint portion (301) that can stretch into first draw-in groove (100) and operation portion (302) of being convenient for user operation on casing (1), joint portion (301) of fixture block (300) can hold in first spout (13), operation portion (302) of fixture block (300) stretch out outside second spout (14), external force acts on behind operation portion (302), joint portion (301) can stretch out first spout (13) and stretch into in first draw-in groove (100) of protection casing (6).
4. The electric suction blower according to claim 3, wherein: the lock catch further comprises a first spring (500) enabling the clamping block (300) to have a tendency of extending out of the first sliding groove (13), one end of the first spring (500) abuts against the inner wall of the machine shell (1), and the other end of the first spring abuts against the clamping block (300).
5. The electric suction blower according to claim 3, wherein: the electric blowing and sucking machine further comprises an air suction pipe (4), a second clamping groove (200) capable of enabling the clamping block (300) to be inserted is formed in the first end, close to the clamping block (300), of the air suction pipe (4), and the second end, far away from the second clamping groove (200), of the air suction pipe (4) is detachably connected with the machine shell (1); a second pressing block (43) which can also be abutted against the trigger rod (800) is arranged at the corresponding position of the air suction pipe (4); when the first end of the air suction pipe (4) is installed in place, the second pressing block (43) can also penetrate through the through hole (16) of the machine shell (1) and then abut against the trigger rod (800), and the trigger rod (800) triggers the first microswitch (700) to start the motor (2); when the air suction pipe (4) is opened, the second pressing block (43) is far away from the trigger rod (800), and the trigger rod (800) is far away from the first microswitch (700) to stop the motor (2).
6. The electric suction machine of claim 5, wherein: the second end that second draw-in groove (200) was kept away from in aspiration channel (4) has connecting portion (41), casing (1) is provided with crotch (15) that are used for this connecting portion of joint (41) towards one side of aspiration channel (4).
7. The electric blowing and sucking machine according to any one of claims 1 to 6, characterized in that: the motor (2) is connected with the impeller (3) through the reduction gear box (7), the motor shaft is connected with the input end of the reduction gear box (7), and the output end of the reduction gear box (7) is connected with the impeller (3).
8. The electric blowing and sucking machine according to any one of claims 1 to 6, characterized in that: the electric blowing and sucking machine further comprises a blowing pipe (5) which is detachably connected with the machine shell (1) and is communicated with the second opening of the machine shell (1).
9. The electric suction blower according to claim 8, wherein: the shell (1) is provided with a first through hole (11), the blowpipe (5) is sleeved outside a second opening of the shell (1) and is provided with a second through hole (51) opposite to the first through hole (11), the electric blowing and sucking machine further comprises a button (400), a second spring (600) and a second microswitch (900), the button (400) can move up and down in the first through hole (11) and the second through hole (51), a protruding edge (401) which can be abutted against the shell (1) upwards is arranged at the bottom of the button (400), the upper end of the second spring (600) is abutted against the button (400), the lower end of the second spring (600) is abutted against the inner wall of the shell (1), the second spring (600) enables the button (400) to have a trend that the blowpipe (5) is connected with the shell (1) by upwards extending out of the second through hole (51) of the blowpipe (5), and the blowpipe (5) can be triggered to start the motor (2) after being installed in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921739198.XU CN211713840U (en) | 2019-10-16 | 2019-10-16 | Electric blowing and sucking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921739198.XU CN211713840U (en) | 2019-10-16 | 2019-10-16 | Electric blowing and sucking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211713840U true CN211713840U (en) | 2020-10-20 |
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ID=72813721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921739198.XU Active CN211713840U (en) | 2019-10-16 | 2019-10-16 | Electric blowing and sucking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211713840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192979A (en) * | 2021-11-19 | 2022-03-18 | 奔腾激光(温州)有限公司 | Cleaning device for cleaning laser cutting waste residues |
-
2019
- 2019-10-16 CN CN201921739198.XU patent/CN211713840U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192979A (en) * | 2021-11-19 | 2022-03-18 | 奔腾激光(温州)有限公司 | Cleaning device for cleaning laser cutting waste residues |
| CN114192979B (en) * | 2021-11-19 | 2023-08-25 | 奔腾激光(浙江)股份有限公司 | A cleaning device for laser cutting waste residue clearance |
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Address after: 315137 Zhejiang liangye Group Co., Ltd Patentee after: Zhejiang liangye Group Co.,Ltd. Address before: 315137 Chen Cun, Yunlong Town, Yunlong Town, Ningbo, Zhejiang, Yinzhou District Patentee before: ZHEJIANG LIANGYE TOOLS Co.,Ltd. |