CN213094954U

CN213094954U - Universal wheel structure of mower and mower

Info

Publication number: CN213094954U
Application number: CN202021385477.3U
Authority: CN
Inventors: 杨云波
Original assignee: Ningbo Ruilin Machinery Technology Co ltd
Current assignee: Ningbo Ruilin Machinery Technology Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-04
Anticipated expiration: 2030-07-14

Abstract

The utility model relates to a universal wheel structure and lawn mower of lawn mower, relate to cutting device's field, solved when mowing, the lawn mower turns on one's side and when the lawn mower is promoted because of the ground pit for the blade of lawn mower exposes, and the blade is rotatory to cause the defect of human injury easily, and it includes the universal wheel of pin joint in the casing downside, locate the universal wheel and be close to the casing and keep away from the magnetic path of pin joint one side and locate on the casing and the hall sensor who corresponds with the magnetic path. The application has the advantages that the mower is stopped to control the blade to stop working when being overturned or lifted, and the injury caused by exposed rotation of the blade when the mower is overturned or lifted is reduced.

Description

Universal wheel structure of mower and mower

Technical Field

The application relates to the field of cutting devices, in particular to a universal wheel structure of a mower and the mower.

Background

A Lawn mower (also called a weeder, a lawnmower, a Lawn trimmer and the like) is a mechanical tool for trimming lawns, vegetations and the like, and consists of a cutter head, an engine, traveling wheels, a traveling mechanism, blades, a collision mechanism and a control part.

Chinese patent application No. 201910134293.5 discloses a mower, which comprises a base, driving wheels located at both sides of the base, a cutter head located below the base, universal wheels located at the front end of the base, and an upper cover fixedly connected with the base through screws; the utility model discloses a high-pressure water heater, including upper cover, upper cover outside cover, anticollision shell, upper cover buckle, anticollision shell and upper cover sliding connection, anticollision shell end is equipped with the anticollision buckle, covers on and is equipped with the upper cover buckle, and the anticollision buckle is nested in the upper cover buckle, and there is crashproof switch crashproof shell inner wall butt, and anticollision switch includes a set of swinging arms with upper cover articulated, swinging arms and anticollision shell butt, and the swinging arms is connected with hall inductive switch.

In view of the above-mentioned related arts, the inventor believes that there are defects that when mowing, the mower turns over due to a pit on the ground, and when the mower is lifted, the blade of the mower is exposed, and the blade is rotated to easily cause injury to a human body.

SUMMERY OF THE UTILITY MODEL

In order to control blade stop work in time when the lawn mower turns on one's side the back or is promoted, the injury that the blade exposes rotation and leads to when reducing the lawn mower and turning on one's side or being promoted, this application provides a universal wheel structure and lawn mower of lawn mower.

In a first aspect, the present application provides a universal wheel structure of a lawn mower, which adopts the following technical scheme:

the utility model provides a universal wheel structure of lawn mower, is applied to on the lawn mower, the lawn mower includes the casing, including the universal wheel of pin joint in the casing downside, locate the universal wheel and be close to the casing and keep away from the magnetic path of pin joint one side and locate on the casing and with the hall sensor that the magnetic path corresponds.

Through adopting above-mentioned technical scheme, hall sensor and magnetic path cooperation are used, and when the lawn mower promoted or turned on one's side, the universal wheel left the ground and overturn under the effect of torsional spring or gravity and keep away from the casing, and hall sensor is kept away from to the magnetic path, and hall sensor control lawn mower outage stop work has reduced the injury that the exposed rotation of blade leads to when the lawn mower turned on one's side or was promoted.

Preferably, the universal wheel further comprises a pivoting seat fixed on the lower side of the machine shell and a pivoting plate pivoted on the pivoting seat, and the universal wheel is arranged on one side, far away from the machine shell, of the pivoting plate.

Through adopting above-mentioned technical scheme, the pin joint seat is fixed in the casing downside, and the universal wheel is installed in one side that the casing was kept away from to the pin joint board, and the universal wheel is connected in the downside of casing through the pin joint upset of pin joint seat and pin joint board, simple structure, easy dismounting, the practicality is strong.

Preferably, one side of the pivoting plate close to the pivoting seat is provided with an extending block, a pivoting shaft penetrates through the extending block, two ends of the pivoting shaft respectively extend out of two opposite side walls of the extending block, one side of the pivoting seat close to the casing is provided with an insertion groove for the extending block to be inserted and rotated, two opposite side walls of the insertion groove are respectively provided with a pivoting hole, two ends of the pivoting shaft are respectively inserted into the two pivoting holes, and the pivoting shaft is rotatably connected with the pivoting seat.

By adopting the technical scheme, the outward extending block is inserted into the insertion groove and rotates in the insertion groove, the pivot shaft penetrates through the outward extending block and is inserted into the pivot hole, so that the pivot plate is pivoted on the pivot base, the structure is simple, and the assembly and disassembly are convenient.

Preferably, one side of the pivoting seat close to the casing is provided with a sliding groove, and the sliding groove is communicated with the pivoting hole.

Through adopting above-mentioned technical scheme, the setting in the groove of sliding in, conveniently with the pin joint axle through the inslot slip-in installation to the pin joint downthehole, improved the efficiency that the pin joint axle was installed in the pin joint downthehole.

Preferably, the pivot shaft is sleeved with a torsion spring which drives the pivot plate to turn in a direction away from the casing, and the pivot plate is provided with an embedding groove for embedding the torsion spring.

Through adopting above-mentioned technical scheme, the setting of torsional spring for can keep away from the casing under the driving of torsional spring when the universal wheel leaves the ground, drive the magnetic path and keep away from hall sensor, and then control lawn mower stop work, the injury that the blade exposes rotation and leads to when having reduced lawn mower and turning on one's side or being promoted.

Preferably, the torsional spring includes two portions of torsion, locates the first butt portion between two portions of torsion and locates the second butt portion that first butt portion one side was kept away from to the portion of torsion, the both ends of first butt portion are connected with two portions of torsion one-to-one respectively, first butt portion butt is in the casing one side of being close to the pin joint board, second butt portion butt is in the one side that the pin joint board is close to the casing.

Preferably, a baffle is arranged on one side, away from the casing, of the pivoting seat, and a limiting plate matched with the baffle is arranged on one side, close to the pivoting shaft and away from the casing, of the pivoting plate.

Through adopting above-mentioned technical scheme, baffle and limiting plate cooperation are spacing to the rotation angle of pin joint board for after the lawn mower is righted, the universal wheel can automatic re-setting, and need not artificial intervention.

Preferably, one side of the pivoting plate, which is far away from the pivoting, is provided with a mounting groove for mounting the magnetic block.

Through adopting above-mentioned technical scheme, the magnetic path is pegged graft and is installed in the mounting groove, simple structure, easy dismounting.

Preferably, the pivot plate is in threaded connection with a fixing screw, the magnetic block is provided with a through hole, and the fixing screw is sequentially arranged on the through hole and the pivot plate in a penetrating manner.

By adopting the technical scheme, the magnetic block is fixed on the pin joint plate through the fixing screws, so that the magnetic block is more firmly connected with the pin joint plate.

In a second aspect, the present application provides a lawn mower, which adopts the following technical solution:

a mower comprises a housing, a driving wheel arranged on the lower side of the housing, a cutter head arranged on the lower side of the housing, and the universal wheel structure of the mower.

Through adopting above-mentioned technical scheme, hall sensor and magnetic path cooperation are used, and when the lawn mower turned on one's side, the universal wheel left the ground and was kept away from the casing in the upset under the effect of gravity, and hall sensor is kept away from to the magnetic path, and hall sensor control lawn mower outage stop work reduces the injury that the exposed rotation of blade leads to when the lawn mower turned on one's side or was promoted.

In summary, the present application includes at least one of the following beneficial technical effects:

hall sensor and magnetic path cooperation are used, and when the lawn mower turned on one's side, the casing was kept away from in the universal wheel upset, and Hall sensor is kept away from to the magnetic path, and the lawn mower outage stop work reduces the injury that the blade exposes rotation and leads to when the lawn mower turned on one's side or was promoted.

Drawings

Fig. 1 is a schematic structural view of a lawn mower according to an embodiment of the present disclosure.

FIG. 2 is an exploded view of the housing and universal wheel structure according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a universal wheel structure according to an embodiment of the present application.

Fig. 4 is an explosion diagram of the universal wheel, the second gasket, the collar, the pivot plate, the first gasket, and the snap spring according to the embodiment of the present application.

Fig. 5 is an explosion diagram of the universal wheel, the second gasket, the collar, the pivot plate, the first gasket, and the snap spring according to the embodiment of the present application.

Fig. 6 is an exploded view of the pivoting base and the pivoting plate according to the embodiment of the present disclosure.

Fig. 7 is an enlarged view of a portion a in fig. 2.

Fig. 8 is a schematic structural view of a torsion spring according to an embodiment of the present application.

Description of reference numerals: 1. a universal wheel structure; 11. a universal wheel; 12. a magnetic block; 121. perforating holes; 14. a pivoting seat; 141. inserting the groove; 142. a pivot hole; 143. sliding into the groove; 144. a baffle plate; 15. a pivoting plate; 151. an overhanging block; 152. a pivot shaft; 153. embedding a groove; 154. a limiting plate; 155. mounting grooves; 156. a set screw; 157. a through hole; 16. a torsion spring; 161. a torsion portion; 162. a first abutting portion; 163. a second abutting portion; 17. a pin; 171. a clamp spring; 172. a first gasket; 173. a second gasket; 18. a collar; 2. a mower; 21. a housing; 22. a drive wheel; 23. a cutter head; 24. a pivoting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a mower. Referring to fig. 1, the mower 2 includes a housing 21, two driving wheels 22, a cutter head 23, and a universal wheel structure 1, where the two driving wheels 22 are installed at two sides of the housing 21, the driving wheels 22 are used for driving the housing 21 to move, the cutter head 23 is installed at a lower side of the housing 21, the cutter head 23 is used for mowing grass, the universal wheel structure 1 is installed at a lower side of the housing 21, and the universal wheel structure 1 is located at a side of the cutter head 23 away from the driving wheels 22.

Referring to fig. 2 and 3, the universal wheel structure 1 includes a universal wheel 11, a magnetic block 12, a pivoting base 14, a pivoting plate 15 and a hall sensor, the pivoting base 14 is fixed on the lower side of the casing 21 through screws, the pivoting plate 15 is pivoted on the side of the pivoting base 14 away from the cutter head 23, the universal wheel 11 is installed on the lower side of the pivoting plate 15, the magnetic block 12 is installed on the side of the pivoting plate 15 away from the pivoting base 14, the hall sensor is installed on a PCB board in the casing 21, the hall sensor is a switch type hall sensor, and the hall sensor is arranged above the magnetic block 12 and corresponds to the magnetic block 12; when the universal wheel 11 is separated from the ground, the universal wheel 11 is turned towards the direction far away from the machine shell 21 under the action of gravity, the magnetic block 12 is far away from the Hall sensor, and the Hall sensor controls the driving wheel 22 and the cutter head 23 of the mower 2 to stop working.

Referring to fig. 4 and 5, a pin 17 is arranged on the upper side of the wheel frame of the universal wheel 11 in a penetrating manner, a through hole 157 is arranged on the pivot plate 15, the pin 17 is arranged in the through hole 157 in a penetrating manner, and a snap spring 171 is arranged on the upper side part of the pin 17 extending out of the pivot plate 15, so that the universal wheel 11 is arranged on the pivot plate 15; the pin 17 is further sleeved with a first gasket 172 and a second gasket 173, the lower side of the first gasket 172 is abutted with the pivot plate 15, the lower side of the second gasket 173 is abutted with the wheel carrier of the universal wheel 11, and the upper side of the second gasket 173 is abutted with the lower side of the pivot plate 15; a lantern ring 18 is further embedded in the through hole 157, the lantern ring 18 is sleeved on the pin 17, and the lantern ring 18 is rotatably connected with the pin 17 to reduce abrasion of the pivot plate 15 and the pin 17 when the pin 17 rotates.

The side of the pivoting plate 15, which is far away from the pivoting seat 14 and far away from the universal wheel 11, is provided with an installation groove 155, and the installation groove 155 is used for inserting and installing the magnetic block 12; the side of the pivot plate 15 away from the universal wheel 11 is provided with a fixing screw 156, the magnetic block 12 is provided with a through hole 121, the fixing screw 156 is firstly inserted into the through hole 121 and then is in threaded connection with the pivot plate 15, so as to mount the magnetic block 12 on the pivot plate 15, and the magnetic block 12 is more firmly connected with the pivot plate 15.

Referring to fig. 6, an extending block 151 is integrally disposed on one side of the pivot plate 15 close to the pivot base 14, an insertion slot 141 is disposed on the pivot base 14, the extending block 151 is inserted into the insertion slot 141 for rotation, a pivot shaft 152 is disposed on the extending block 151 in a penetrating manner, the pivot shaft 152 can be rotatably connected to the extending block 151 and can also be fixedly connected to the extending block 151, two ends of the pivot shaft 152 respectively extend out of two opposite sidewalls of the extending block 151, pivot holes 142 are disposed on two opposite sidewalls of the insertion slot 141, and one end of the pivot shaft 152 is inserted into and rotated by the pivot holes 142, so that the pivot plate 15 is pivoted on the pivot base 14.

The upper side of the pivot base 14 is further formed with a sliding groove 143, and the sliding groove 143 is communicated with the pivot hole 142, so as to facilitate the pivot shaft 152 to slide into the pivot hole 142 through the sliding groove 143.

Referring to fig. 2 and 7, the lower side of the housing 21 is further integrally provided with a pivot block 24, the pivot block 24 and the sliding groove 143 are in one-to-one correspondence, and when the pivot base 14 is fixed on the housing 21, the pivot block 24 and the pivot base 14 cooperate to form a space for the pivot shaft 152 to pass through and rotate, so that the pivot shaft 152 is not prone to relative shaking when in use.

Referring to fig. 6 and 8, the pivot shaft 152 is further sleeved with a torsion spring 16, the protruding block 151 is provided with an embedding groove 153 for embedding the torsion spring 16, and the torsion spring 16 is used for driving the pivot plate 15 to turn around the pivot shaft 152 to a side far away from the housing 21; the torsion spring 16 includes a torsion portion 161, a first abutting portion 162 and a second abutting portion 163, the number of the torsion portion 161 is two, the number of the first abutting portion 162 is one, two ends of the first abutting portion 162 are respectively integrated with the two torsion portions 161, the number of the second abutting portion 163 is two, the second abutting portion 163 is in one-to-one correspondence with the torsion portion 161, the second abutting portion 163 is integrally disposed on one side of the torsion portion 161 away from the first abutting portion 162, the second abutting portion 163 is abutted against the pivot plate 15, the first abutting portion 162 is abutted against the housing 21, so as to drive the pivot plate 15 to turn around the pivot shaft 152 to one side away from the housing 21.

The baffle 144 is integrally arranged on the lower side of the pivoting seat 14, the limiting plate 154 is integrally arranged on one side, close to the pivoting seat 14, of the pivoting plate 15, the baffle 144 and the limiting plate 154 are matched to limit the overturning angle of the pivoting plate 15, and therefore after the mower 2 is righted, manual intervention is not needed, and the universal wheel 11 and the pivoting plate 15 can be reset.

The utility model provides a universal wheel structure of lawn mower and implementation principle of lawn mower do: the Hall sensor is matched with the magnetic block 12 for use, when the mower 2 turns over, the universal wheel 11 leaves the ground and turns over under the action of gravity to be far away from the machine shell 21, the magnetic block 12 is far away from the Hall sensor, and the Hall sensor controls the mower 2 to be powered off and stop working, so that the waste of energy when the mower 2 turns over is reduced; the torsion spring 16 is arranged, so that as long as the universal wheel 11 leaves the ground, the universal wheel 11 can be overturned under the driving of the torsion spring 16 to be away from the machine shell 21, the magnetic block 12 is away from the Hall sensor, and the Hall sensor controls the mower 2 to be powered off and stop working.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A universal wheel structure of a mower is applied to the mower (2), the mower (2) comprises a machine shell (21), and the universal wheel structure is characterized in that: the magnetic sensor comprises a universal wheel (11) pivoted on the lower side of a casing (21), a magnetic block (12) arranged on one side, close to the casing (21) and far away from the pivoted side, of the universal wheel (11), and a Hall sensor arranged on the casing (21) and corresponding to the magnetic block (12).

2. The universal wheel structure of a lawnmower according to claim 1, wherein: the universal wheel is characterized by further comprising a pivoting seat (14) fixed on the lower side of the machine shell (21) and a pivoting plate (15) pivoted on the pivoting seat (14), and the universal wheel (11) is arranged on one side, away from the machine shell (21), of the pivoting plate (15).

3. The universal wheel structure of a lawnmower according to claim 2, wherein: one side of the pivoting plate (15) close to the pivoting seat (14) is provided with an outward extending block (151), a pivoting shaft (152) penetrates through the outward extending block (151), two ends of the pivoting shaft (152) respectively extend out of two opposite side walls of the outward extending block (151), one side of the pivoting seat (14) close to the machine shell (21) is provided with an insertion groove (141) for the outward extending block (151) to be inserted and rotated, two opposite side walls of the insertion groove (141) are respectively provided with a pivoting hole (142), two ends of the pivoting shaft (152) are respectively inserted into the two pivoting holes (142), and the pivoting shaft (152) is rotatably connected with the pivoting seat (14).

4. The universal wheel structure of a lawnmower according to claim 3, wherein: one side of the pivoting seat (14) close to the machine shell (21) is provided with a sliding groove (143), and the sliding groove (143) is communicated with the pivoting hole (142).

5. The universal wheel structure of a lawnmower according to claim 3 or 4, wherein: the hinge shaft (152) is sleeved with a torsion spring (16) which drives the hinge plate (15) to turn towards the direction far away from the shell (21), and the overhanging block (151) is provided with an embedding groove (153) for embedding the torsion spring (16).

6. The universal wheel structure of a lawnmower according to claim 5, wherein: torsional spring (16) include two torsion portions (161), locate first butt portion (162) between two torsion portions (161) and locate second butt portion (163) that torsion portion (161) kept away from first butt portion (162) one side, the both ends of first butt portion (162) are connected with two torsion portions (161) one-to-one respectively, first butt portion (162) butt is close to one side of pin joint board (15) in casing (21), second butt portion (163) butt is close to one side of casing (21) in pin joint board (15).

7. The universal wheel structure of a lawnmower according to claim 5, wherein: a baffle (144) is arranged on one side, away from the machine shell (21), of the pivoting seat (14), and a limiting plate (154) matched with the baffle (144) is arranged on one side, close to the pivoting shaft (152) and away from the machine shell (21), of the pivoting plate (15).

8. The universal wheel structure of a lawnmower according to claim 2, wherein: and one side of the pivoting plate (15) far away from the pivoting is provided with a mounting groove (155) for mounting the magnetic block (12).

9. The universal wheel structure of a lawnmower according to claim 8, wherein: the magnetic block is characterized in that the pivot plate (15) is in threaded connection with a fixing screw (156), the magnetic block (12) is provided with a through hole (121), and the fixing screw (156) sequentially penetrates through the through hole (121) and the pivot plate (15).

10. The utility model provides a lawn mower, includes casing (21), locates drive wheel (22) of casing (21) downside and locates blade disc (23) of casing (21) downside, its characterized in that: further comprising a universal wheel structure of a lawnmower according to any one of claims 1-9.