CN117006152A

CN117006152A - Connection structure and lawn mower

Info

Publication number: CN117006152A
Application number: CN202210451496.9A
Authority: CN
Inventors: 史剑峰; 唐爱贵; 陶生强
Original assignee: Midea Robozone Technology Co Ltd
Current assignee: Midea Robozone Technology Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2023-11-07

Abstract

The embodiment of the application provides a connecting structure and a mower, wherein the connecting structure comprises: a striker plate connector; the pull rod component and the collision plate connecting piece form a spherical pair; the pull rod component is connected with the fixed base; and one end of the outer cylinder is in sliding connection with the pull rod member, and the other end of the outer cylinder and the fixed base form a spherical pair. According to the technical scheme, the pull rod component and the outer barrel of the connecting structure respectively form the spherical pair with the collision plate connecting piece and the fixed base, so that the omnibearing collision and the lifting collision judgment can be realized by using one connecting structure under the action of the two spherical pairs, and the assembly is more convenient.

Description

Connection structure and lawn mower

Technical Field

The application relates to the technical field of mowers, in particular to a connecting structure and a mowing machine.

Background

When the mower is used, when the mower touches obstacles such as stones, whether the mower can be detected and reasonably avoided is an important reference factor for improving the use safety of the mower, when the existing mower detects the obstacles, a detector is often arranged on the main body of the mower, a motor is controlled according to the detection result of the detector, a blade is lifted to achieve avoiding and resetting, however, the detector needs to be additionally installed, certain delay exists in the detection of electric control, and the actual detection effect is not ideal.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art or related art.

In view of this, embodiments of the first aspect of the present application provide a connection structure.

Embodiments of the second aspect of the present application provide a mower.

To achieve the above object, an embodiment of a first aspect of the present application provides a connection structure, including: a striker plate connector; the pull rod component and the collision plate connecting piece form a spherical pair; the pull rod component is connected with the fixed base; and one end of the outer cylinder is in sliding connection with the pull rod member, and the other end of the outer cylinder and the fixed base form a spherical pair.

According to the connecting structure provided by the embodiment of the first aspect of the application, the connecting structure mainly comprises the impact plate connecting pieces and the fixed base which are positioned at two ends and the outer barrel for connecting the two, wherein the impact plate connecting pieces are used for being connected with the impact plate of the mower so that specific impact can be converted into internal movement through the impact plate connecting pieces after the impact plate collides, subsequent impact sensing is facilitated, corresponding control logic is executed, and the fixed base is used for being connected with the shell of the mower so as to realize connection between the fixed base and the impact plate under the action of the connecting structure. It should be emphasized that the spherical pair is formed between the pull rod member and the striking plate connecting piece, three degrees of freedom exist, and the judging range of the striking plate can be improved, namely, when the obstacle in any direction collides with the striking plate, the striking plate connecting piece can generate corresponding displacement, at the moment, rotation can be firstly generated, and after the rotation reaches the limit position, if stress still exists, the pull rod member is driven to move together under the action of the spherical pair. At this time, through setting up the urceolus between unable adjustment base and pull rod component, specifically the one end and the pull rod component sliding connection of urceolus, the other end forms the sphere pair with unable adjustment base, can also take place to rotate for unable adjustment base under the effect of urceolus to follow-up discernment to the position that bumps, play intelligent control's effect.

It can be understood that the pull rod component and the outer barrel of the connecting structure respectively form a spherical pair with the collision plate connecting piece and the fixed base, and under the effect of the two spherical pairs, the omnibearing collision and the judgment of lifting collision can be realized by utilizing one connecting structure, so that the assembly is more convenient. In addition, the application can provide buffer time for detection control of electric control logic and reduce the possibility of danger because of the displacement in the collision direction under the combined action of the structures when collision occurs.

In addition, the pull rod component is in sliding connection with the outer cylinder, when lifting external force is generated when the collision plate connecting piece collides, the position of the pull rod component relative to the outer cylinder can be judged, so that lifting judgment is realized, corresponding control logic can be executed, for example, the rotation of the cutter motor is stopped until the pull rod component falls back to the initial position when the pull rod component is not subjected to the lifting external force, and the rotation of the cutter motor can be controlled continuously.

In addition, the connecting structure in the scheme provided by the application can also have the following additional technical characteristics:

in the above technical solution, further includes: the inner cylinder is arranged in the outer cylinder and is in sliding connection with the outer cylinder, and a first matching piece is formed at one end of the inner cylinder, which is close to the pull rod member; the second matching piece is arranged at one end of the pull rod component close to the inner cylinder; wherein, realize the connection of inner tube and pull rod component through the cooperation of first cooperation piece and second cooperation piece.

In the technical scheme, the inner cylinder in sliding connection is arranged in the outer cylinder, and one end of the inner cylinder is connected with the pull rod member, so that when the pull rod member is lifted by external force, relative movement can be generated between the inner cylinder and the outer cylinder, and therefore whether the pull rod member is lifted or not can be judged by collecting the movement.

Specifically, a first matching piece is arranged at one end of the inner cylinder, and a second matching piece is arranged at one end of the pull rod component, wherein the first matching piece and the second matching piece are arranged at one end, close to each other, of the inner cylinder and the pull rod component, so that connection is achieved.

Further, the first mating member may be a connecting shaft, and the second mating member may be a connecting hole, and the connection is achieved through interference fit between the connecting shaft and the connecting hole.

Of course, the first mating member may be a connecting hole, and the second mating member is a connecting shaft.

Or, the first matching piece is a pin shaft, and the second matching piece is a pin shaft hole.

In the above technical solution, further includes: the first elastic piece is arranged in the fixed base, and two ends of the first elastic piece are respectively connected with the fixed base and the outer cylinder so as to reset after the outer cylinder rotates relative to the fixed base; and the second elastic piece is arranged between the inner cylinder and the outer cylinder, one end of the second elastic piece is connected with the outer cylinder, and the other end of the second elastic piece is connected with the inner cylinder so as to realize the reset of the inner cylinder.

In the technical scheme, the reset function can be achieved by arranging the two elastic pieces. Specifically, be provided with first elastic component in unable adjustment base, can rotate the back at the urceolus under the effect of first elastic component and realize the reduction, in addition, through setting up the second elastic component between inner tube and urceolus to connect the both ends of second elastic component to urceolus and inner tube respectively, when the inner tube takes place to slide for the urceolus, the second elastic component can take place to deform, after external force disappears, can drive the inner tube and slide for the urceolus in opposite directions under the elastic force effect that the second elastic component stored before, and then realize the reduction of inner tube, be convenient for use next time.

In the above technical solution, further includes: the telescopic sleeve is sleeved outside the outer cylinder, and two ends of the telescopic sleeve are respectively connected to the pull rod component and the fixed base.

In the technical scheme, the telescopic sleeve is sleeved outside the outer cylinder, and two ends of the telescopic sleeve are respectively connected to the pull rod component and the fixed base, so that the inner outer cylinder is protected to a certain extent. Meanwhile, as the telescopic sleeve has certain elasticity, when the outer cylinder rotates, one side contracts and the other side extends, so that protection in the moving process is realized.

It can be understood that the length of the telescopic sleeve is variable, so that the protection effect on the internal parts is achieved.

Further, the telescopic sleeve can be respectively and hermetically connected with the pull rod component and the fixed base at the connecting position.

In the above technical scheme, the unable adjustment base specifically includes: the fixed cover is provided with an opening for the outer cylinder to pass through; the fixed seat is detachably connected with the other end of the fixed cover; wherein, the fixed cover and the outer cylinder form a spherical pair.

In this technical scheme, unable adjustment base mainly includes fixed lid and the fixing base of detachable connection, and wherein, fixed lid links to each other with flexible cover, can be with the one end of flexible cover being connected to fixed covering, on this basis, make spherical pair again between fixed lid and the urceolus to when bumping the board and touching the barrier, when producing front and back displacement, can make the urceolus wholly take place to rotate for fixed lid, thereby when detecting this removal, can realize collision judgement.

It should be noted that, the fixing base and the fixing cover may be detachably connected to facilitate assembly, and specifically, the detachable connection may be a clamping connection, a threaded connection, or other detachable connection modes.

In the above technical scheme, the one end of urceolus towards the fixing base is equipped with first arch, and the one end of fixing base towards the fixed lid is equipped with the second arch, and the both ends of first elastic component link to each other with first arch and second arch respectively.

In this technical scheme, through setting up first arch on the urceolus, set up the second arch on the fixing base, can provide the connection object for first elastic component, the both ends of first elastic component link to each other with first arch and second arch respectively promptly to can make first elastic component take place deformation when the urceolus takes place for the fixing base, do benefit to the reset after follow-up external force disappears.

It can be understood that the first elastic member may be a spring, and two ends of the spring may be respectively sleeved on the first protrusion and the second protrusion, and on this basis, two ends of the spring are connected with the first protrusion and the second protrusion.

In the above technical scheme, the fixed cover is equipped with the connection arch with the continuous one end of flexible cover, and the one end cover of flexible cover is located outside the connection arch.

In this technical scheme, through setting up the connection arch at the one end of fixed lid to the connection of flexible cover of being convenient for, specifically, the connection arch sets up the one end that links to each other at fixed lid and flexible cover, can provide the connection object for flexible cover, more is convenient for connect.

It can be understood that when the telescopic sleeve is made of a certain elastic material, the elasticity of the telescopic sleeve can be utilized, other connecting structures are not needed, the telescopic sleeve can be directly sleeved outside the connecting protrusions, and meanwhile, the connection sealing can be ensured.

In the above technical scheme, the unable adjustment base still includes: the connecting cover is provided with one end of the fixed cover far away from the fixed seat and is detachably connected with the fixed cover; wherein, the connecting cover links to each other with fixed lid, and the one end of flexible cover is located between connecting cover and the fixed lid.

In the technical scheme, the connecting cover is arranged at the other end of the fixed cover, so that the end part of the telescopic sleeve can be fixed under the action of the connecting cover and the fixed cover. It will be appreciated that the connection cover and the fixed cover are detachably connected, thereby facilitating the assembly operation.

In the technical scheme, the clamping part is arranged on the pull rod member, and one end of the telescopic sleeve is connected with the pull rod member through the clamping part.

In the technical scheme, one end of the telescopic sleeve can be connected to the clamping part by arranging the clamping part on the pull rod member, so that the telescopic sleeve and the pull rod member are connected.

The shape of the clamping part can be matched with the shape of the end part of the telescopic sleeve, so long as the telescopic sleeve can be connected to the telescopic sleeve under the action of the clamping part.

It should be noted that the flexible sleeve can be made of elastic materials, and can be sealed after being connected, or can be made of common materials, and can be sealed under the action of the clamping part.

In the above technical solution, further includes: the first sensor is arranged in the fixed base and used for determining the rotation position of the outer cylinder relative to the fixed base.

In this technical scheme, through setting up first sensor in unable adjustment base, can be to the concrete rotation of urceolus perception to under the circumstances that takes place to rotate through the sphere pair between urceolus and unable adjustment base, confirm the atress of urceolus, and urceolus and hit the board connecting piece and rotate together, so can realize the detection when the obstacle bumps into the board connecting piece and bump through the perception to this rotation, thereby realize collision detection.

It is understood that the first sensor may be any device that senses displacement, including but not limited to hall sensors, infrared sensors, etc.

In the above technical solution, further includes: the second sensor is arranged in the outer cylinder and used for determining the sliding position of the inner cylinder relative to the outer cylinder.

In the technical scheme, the second sensor is arranged in the outer cylinder, so that the displacement of the inner cylinder relative to the outer cylinder can be sensed, and therefore, whether the collision plate is lifted or not is determined under the condition that the inner cylinder and the outer cylinder slide, and detection of the barrier on the lifting of the collision plate connecting piece can be realized by sensing the displacement, and lifting detection is realized.

It is understood that the second sensor may be any device that senses displacement, including but not limited to hall sensors, infrared sensors, and the like.

Embodiments of the second aspect of the present application provide a mower comprising: a housing; the striker plate is connected to the housing by an embodiment of the connecting structure as described above for the first aspect.

According to the mower provided by the embodiment of the second aspect of the application, the mower mainly comprises the shell and the striking plate, and the striking plate can be installed by respectively connecting the two ends of the connecting structure with the shell and the striking plate.

It will be appreciated that the striker plate attachment of the attachment structure is for attachment to the striker plate and the attachment structure's stationary base is for attachment to the housing.

Wherein the mower comprises a purely mechanical mowing device.

Additional aspects and advantages of the application will be set forth in part in the description which follows, or may be learned by practice of the application.

Drawings

FIG. 1 shows a schematic structural diagram of a connection structure according to one embodiment of the present application;

FIG. 2 shows a schematic cross-sectional structure of a connection structure according to one embodiment of the present application;

FIG. 3 shows an exploded structural schematic view of a connection structure according to one embodiment of the present application;

FIG. 4 shows a schematic cross-sectional structure of a connection structure according to one embodiment of the present application;

fig. 5 shows a schematic structural view of a mower according to an embodiment of the present application.

The correspondence between the reference numerals and the component names in fig. 1 to 5 is:

100: a connection structure; 102: a striker plate connector; 103: a telescopic sleeve; 104: a pull rod member; 1042: a second mating member; 1044: a clamping part; 106: a fixed base; 1062: a fixed cover; 1063: a connection protrusion; 1064: a fixing seat; 1065: a second protrusion; 1066: a connection cover; 108: an outer cylinder; 1082: a first protrusion; 110: a first elastic member; 112: an inner cylinder; 1122: a first mating member; 114: a second elastic member; 116: a first sensor; 118: a second sensor; 200: a mower; 202: a housing; 204: and (5) a striking plate.

Detailed Description

In order that the above-recited objects, features and advantages of embodiments of the present application can be more clearly understood, a further detailed description of embodiments of the present application will be rendered by reference to the appended drawings and detailed description thereof. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the application may be practiced otherwise than as described herein, and therefore the scope of the application is not limited to the specific embodiments disclosed below.

Some embodiments according to the present application are described below with reference to fig. 1 to 5.

Example 1

As shown in fig. 1, the connecting structure 100 according to the present embodiment mainly includes a striker plate connecting member 102 and a fixing base 106 at two ends, and an outer barrel connecting the striker plate connecting member 102 and the fixing base 106, wherein the striker plate connecting member 102 is used for connecting with a striker plate 204 of a mower 200, so that after the striker plate 204 collides, a specific collision can be converted into an internal movement through the striker plate connecting member 102, so as to facilitate subsequent collision sensing and execute corresponding control logic, and the fixing base 106 is used for connecting with a housing 202 of the mower 200, so that the fixing base 106 and the striker plate 204 are connected under the action of the connecting structure 100. It should be emphasized that, the spherical pair is formed between the pull rod member 104 and the striking plate connector 102, so that three degrees of freedom exist, and the judging range of the striking plate 204 can be increased, that is, when the obstacle in any direction collides with the striking plate 204, the striking plate connector 102 can generate corresponding displacement, and at the moment, the pull rod member 104 is driven to move together under the action of the spherical pair if the force still exists after the pull rod member 104 rotates to the limit position. At this time, by providing the outer tube 108 between the fixed base and the pull rod member, specifically, one end of the outer tube 108 is slidably connected with the pull rod member 104, and the other end forms a spherical pair with the fixed base 106, the outer tube 108 will also rotate relative to the fixed base 106 under the action of the outer tube 108, so that the collision position can be identified later, and the effect of intelligent control is achieved.

It can be appreciated that by forming spherical pairs with the striker plate connector 102 and the fixing base 106 at the pull rod member 104 and the outer barrel 108 of the connection structure 100, respectively, the omnibearing collision and the judgment of the lifting collision can be realized by using one connection structure 100 under the action of two spherical pairs, and the assembly is also more convenient. In addition, the application can provide buffer time for detection control of electric control logic and reduce the possibility of danger because of the displacement in the collision direction under the combined action of the structures when collision occurs.

In addition, the pull rod member 104 is slidably connected with the outer cylinder 108, when the lifting external force is generated during the collision of the striking plate connector 102, the position of the pull rod member 104 relative to the outer cylinder 108 can be judged, so that the lifting judgment can be realized, corresponding control logic can be executed, for example, the rotation of the cutterhead motor is stopped until the pull rod member 104 falls back to the initial position when the lifting external force is not received, and the rotation of the cutterhead motor can be continuously controlled.

A telescopic sleeve 103 may also be provided on the basis of the above embodiments. Specifically, the outer cylinder 108 is sleeved with the telescopic sleeve 103, and two ends of the telescopic sleeve 103 are respectively connected to the pull rod member 104 and the fixed base, so that the inner outer cylinder 108 is protected to a certain extent. Meanwhile, since the telescopic sleeve 103 has certain elasticity, when the outer cylinder 108 rotates, one side is contracted and the other side is extended, so that protection in the moving process is realized.

It will be appreciated that the length of the bellows 103 itself may vary, protecting the internal components.

Further, the telescopic sleeve 103 may be sealingly connected to the pull rod member 104 and the stationary base at a connection, respectively.

Example two

As shown in fig. 1, the connecting structure 100 according to the present embodiment mainly includes a striker plate connecting member 102 and a fixing base 106 at two ends, and a telescopic sleeve 103 connecting the striker plate connecting member 102 and the fixing base 106, wherein the striker plate connecting member 102 is used for connecting with a striker plate 204 of a mower 200, so that after the striker plate 204 collides, a specific collision can be converted into an internal movement through the striker plate connecting member 102, so as to facilitate subsequent collision sensing and execute corresponding control logic, and the fixing base 106 is used for connecting with a housing 202 of the mower 200, so that the connection between the fixing base 106 and the striker plate 204 is realized under the action of the connecting structure 100. It should be emphasized that, the spherical pair is formed between the pull rod member 104 and the striking plate connector 102, so that three degrees of freedom exist, and the judging range of the striking plate 204 can be increased, that is, when the obstacle in any direction collides with the striking plate 204, the striking plate connector 102 can generate corresponding displacement, and at the moment, the pull rod member 104 is driven to move together under the action of the spherical pair if the force still exists after the pull rod member 104 rotates to the limit position. At this time, the outer cylinder 108 is arranged in the telescopic sleeve 103, one end of the outer cylinder 108 is slidably connected with the pull rod member 104, the other end of the outer cylinder 108 and the fixed base 106 form a spherical pair, and the spherical pair can rotate relative to the fixed base 106 under the action of the outer cylinder 108 so as to conveniently identify the collision position and achieve the effect of intelligent control.

It will be appreciated that the length of the bellows 103 itself may vary, protecting the internal components. Further, the telescoping sleeve 103 may be sealingly connected to the tie member 104 and the stationary base 106, respectively, at a junction.

The inner cylinder 112 is slidably connected in the outer cylinder 108, and one end of the inner cylinder 112 is connected with the pull rod member 104, so that when the pull rod member 104 is lifted by an external force, a relative movement is generated between the inner cylinder 112 and the outer cylinder 108, and therefore whether the pull rod member 104 is lifted or not can be judged by collecting the movement.

Specifically, a first mating member 1122 is provided at one end of the inner barrel 112 and a second mating member 1042 is provided at one end of the drawbar member 104, wherein the first mating member 1122 and the second mating member 1042 are both provided at one end of the inner barrel 112 and the drawbar member 104 adjacent to each other to facilitate connection.

Further, the first mating member 1122 may be a connecting shaft and the second mating member 1042 may be a connecting hole, with the connection being achieved by an interference fit between the connecting shaft and the connecting hole.

Of course, the first mating member 1122 may be a connecting hole and the second mating member 1042 a connecting shaft.

Alternatively, first mating element 1122 is a pin shaft and second mating element 1042 is a pin shaft hole.

Further, a first elastic member 110 is disposed in the fixed base 106, and the outer cylinder 108 can be reset after rotating under the action of the first elastic member 110.

Further, as shown in fig. 2, a second elastic member 114 is disposed between the inner cylinder 112 and the outer cylinder 108, and two ends of the second elastic member 114 are respectively connected to the outer cylinder 108 and the inner cylinder 112, when the inner cylinder 112 slides relative to the outer cylinder 108, the second elastic member 114 deforms, and after the external force disappears, the inner cylinder 112 is driven to slide reversely relative to the outer cylinder 108 under the action of the elastic force stored by the second elastic member 114, so that the reset of the inner cylinder 112 is realized, and the next use is facilitated.

Example III

The connecting structure 100 according to the present embodiment mainly includes a striker plate connecting member 102 and a fixing base 106 disposed at two ends, and a telescopic sleeve 103 connecting the striker plate connecting member 102 and the fixing base 106, wherein the striker plate connecting member 102 is used for connecting with a striker plate 204 of a mower 200, so that after the striker plate 204 collides, a specific collision can be converted into an internal movement through the striker plate connecting member 102, so that a subsequent collision can be sensed and corresponding control logic can be executed, and the fixing base 106 is used for connecting with a housing 202 of the mower 200, so that the connection between the fixing base 106 and the striker plate 204 is realized under the action of the connecting structure 100. It should be emphasized that, the spherical pair is formed between the pull rod member 104 and the striking plate connector 102, so that three degrees of freedom exist, and the judging range of the striking plate 204 can be increased, that is, when the obstacle in any direction collides with the striking plate 204, the striking plate connector 102 can generate corresponding displacement, and at the moment, the pull rod member 104 is driven to move together under the action of the spherical pair if the force still exists after the pull rod member 104 rotates to the limit position. At this time, the outer cylinder 108 is arranged in the telescopic sleeve 103, one end of the outer cylinder 108 is slidably connected with the pull rod member 104, the other end of the outer cylinder 108 and the fixed base 106 form a spherical pair, and the spherical pair can rotate relative to the fixed base 106 under the action of the outer cylinder 108 so as to conveniently identify the collision position and achieve the effect of intelligent control.

As shown in fig. 4, for the fixed base 106, the fixed base mainly includes a fixed cover 1062 and a fixed seat 1064 that are detachably connected, where the fixed cover 1062 is connected to the telescopic sleeve 103, and one end of the telescopic sleeve 103 can be connected to the fixed cover 1062, and on this basis, a spherical pair is formed between the fixed cover 1062 and the outer cylinder 108, so that when the striking plate 204 touches an obstacle, front-back displacement occurs, the outer cylinder 108 can rotate integrally relative to the fixed cover 1062, and thus collision judgment can be achieved when the movement is detected.

It should be noted that, the detachable connection between the fixing base 1064 and the fixing cover 1062 may be a clamping connection, a threaded connection, or other detachable connection manner, so as to facilitate assembly.

Further, as shown in fig. 3 and 4, the first protrusion 1082 is disposed on the outer cylinder 108, and the second protrusion 1065 is disposed on the fixed seat 1064, so as to provide a connection object for the first elastic member 110, that is, two ends of the first elastic member 110 are respectively connected with the first protrusion 1082 and the second protrusion 1065, so that the first elastic member 110 can be deformed when the outer cylinder 108 rotates relative to the fixed seat 1064, which is beneficial to resetting after the subsequent external force disappears.

It is understood that the first elastic member 110 may be a spring, and two ends of the spring may be respectively sleeved on the first protrusion 1082 and the second protrusion 1065, and then connected with the first protrusion 1082 and the second protrusion 1065.

A connection protrusion 1063 is provided at one end of the fixed cover 1062 to facilitate connection of the telescopic sleeve 103, and in particular, the connection protrusion 1063 is provided at one end of the fixed cover 1062 connected to the telescopic sleeve 103 to provide a connection object for the telescopic sleeve 103, which is more convenient for connection.

It can be appreciated that when the telescopic sleeve 103 is made of a certain elastic material, the elasticity of the telescopic sleeve 103 can be utilized, and the connecting protrusion 1063 can be directly sleeved with other connecting structures 100, so that the sealing of the connection can be ensured.

Furthermore, the fixing base 106 includes a fixing cover 1062 and a fixing base 1064, and a connecting cover 1066 is disposed at the other end of the fixing cover 1062, so that the end portion of the telescopic sleeve 103 can be fixed under the action of the connecting cover 1066 and the fixing cover 1062. It will be appreciated that the connection cover 1066 and the fixed cover 1062 are detachably connected to each other to facilitate assembly operations.

Example IV

Wherein, the pull rod member 104 is provided with a clamping part 1044, and one end of the telescopic sleeve 103 can be connected to the clamping part 1044, thereby realizing the connection of the telescopic sleeve 103 and the pull rod member 104.

The shape of the locking portion 1044 may be adapted to the end shape of the telescopic sleeve 103, so long as the locking portion 1044 is connected to the telescopic sleeve 103.

It should be noted that, the telescopic sleeve 103 may be made of an elastic material, so that sealing can be ensured after connection, or a common material may be selected, so that sealing is achieved under the action of the clamping portion 1044.

On the basis of any of the above embodiments, the first sensor 116 is disposed in the fixed base 106, so that the specific rotation of the outer cylinder 108 can be sensed, and therefore, under the condition that the outer cylinder 108 and the fixed base 106 rotate through the spherical pair, the stress of the outer cylinder 108 is determined, and the outer cylinder 108 and the striker plate connecting member 102 rotate together, so that the detection of the collision of the obstacle with the striker plate connecting member 102 can be realized through sensing the rotation, and the collision detection can be realized.

On the basis of any of the above embodiments, the second sensor 118 is disposed in the outer cylinder 108, so as to sense the displacement of the inner cylinder 112 relative to the outer cylinder 108, so that whether the striker 204 is lifted or not can be determined under the condition that the inner cylinder 112 and the outer cylinder 108 slide, and therefore, detection when the striker connector 102 is lifted by an obstacle can be realized by sensing the displacement, and lifting detection can be realized.

It is understood that the first sensor 116 and the second sensor 118 may be any device that senses displacement, including but not limited to hall sensors, infrared sensors, and the like.

Example five

As shown in fig. 5, the mower 200 according to the present embodiment mainly includes a housing 202 and a striking plate 204, and the striking plate 204 can be mounted by connecting two ends of the connecting structure 100 with the housing 202 and the striking plate 204, respectively.

It will be appreciated that striker plate connector 102 of attachment structure 100 is adapted to be coupled to striker plate 204, and stationary base 106 of attachment structure 100 is adapted to be coupled to housing 202.

The mower 200 comprises a purely mechanical mowing device and also comprises an electromechanical hybrid control mowing device, such as a mowing robot.

In a specific embodiment, a bump plate connection structure for an intelligent mowing robot is provided, wherein 2 compression springs are designed and distributed up and down, an upper side spring is a lifting return spring (i.e. a second elastic element 114), and a lower side spring is a bump return spring (i.e. a first elastic element 110). Meanwhile, the mechanism further comprises 2 spherical pairs, wherein the upper spherical pair is used for lifting a return spring pull rod (namely a pull rod component 104) to be connected with a striker rubber sleeve (namely a striker connecting piece 102), 3 degrees of freedom are provided, and the lower spherical pair is used for connecting a collision return spring outer cylinder 108 (namely an outer cylinder 108) with a fixed base 106, and 3 degrees of freedom are provided.

The lifting return spring pull rod is fixedly connected with the lifting return spring sleeve, can move up and down relative to the collision return spring outer cylinder 108, and returns through the lifting return spring, and the collision return spring outer cylinder 108 and the fixed base 106 rotate around a spherical pair formed by the lifting return spring outer cylinder and the fixed base 106 and return through the collision return spring.

In a specific implementation, the striker plate rubber sleeve is fixed on the striker plate 204, and the fixed base 106 is fixedly installed on the lower shell of the mowing robot. The striker plate 204 is movable back and forth relative to the lower mower housing. When the obstacle collides with the collision plate 204 of the mowing robot when the obstacle is in front of the mowing robot, the collision plate 204 moves backwards under the action of collision force, the collision plate rubber sleeve drives the collision return spring outer cylinder 108 to rotate around a spherical pair formed by the collision return spring outer cylinder 108 and the fixed base 106, a sensor of the mowing robot detects a collision signal, and the mowing robot moves backwards. As the robot moves rearward, the impact force is reduced, and the impact return spring outer cylinder 108 is returned to the original position by the impact return spring.

When the striking plate 204 of the mowing robot is lifted, the lifting return spring pull rod is driven to move upwards through the striking plate rubber sleeve, so that the striking plate 204 is separated from the lower shell of the mowing robot, and after a sensor of the mowing robot detects a lifting signal, corresponding actions, such as stopping the rotation of a cutter motor and the like, are executed, so that personnel safety is protected. The robot to be mowed is put back on the ground, and the striking plate 204 is reset under the action of the gravity of the lifting reset spring and the striking plate 204.

According to the connecting structure and the mower, the pull rod component and the outer barrel of the connecting structure respectively form the spherical pair with the collision plate connecting piece and the fixed base, and under the effect of the two spherical pairs, the omnibearing collision and the lifting collision judgment can be realized by using one connecting structure, so that the assembly is more convenient.

In the present application, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present application.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connection structure, characterized by comprising:

a striker plate connector;

the pull rod component and the collision plate connector form a spherical pair;

the pull rod component and the fixed base are arranged at intervals;

and one end of the outer cylinder is in sliding connection with the pull rod member, and the other end of the outer cylinder and the fixed base form a spherical pair.

2. The connection structure according to claim 1, further comprising:

an inner cylinder arranged in the outer cylinder and in sliding connection with the outer cylinder, wherein a first matching piece is formed at one end of the inner cylinder, which is close to the pull rod member;

the second matching piece is arranged at one end of the pull rod component, which is close to the inner cylinder;

wherein, through the cooperation of first cooperation piece with the cooperation of second cooperation piece realizes the inner tube with the connection of pull rod component.

3. The connection structure according to claim 2, further comprising:

the first elastic piece is arranged in the fixed base, and two ends of the first elastic piece are respectively connected with the fixed base and the outer cylinder so as to reset after the outer cylinder rotates relative to the fixed base;

the second elastic piece is arranged between the inner cylinder and the outer cylinder, one end of the second elastic piece is connected with the outer cylinder, and the other end of the second elastic piece is connected with the inner cylinder so as to reset the inner cylinder.

4. A connection according to claim 3, further comprising:

the telescopic sleeve is sleeved outside the outer cylinder, and two ends of the telescopic sleeve are respectively connected to the pull rod component and the fixed base.

5. The connection structure according to claim 4, wherein the fixing base specifically includes:

the fixed cover is connected with the telescopic sleeve at one end, and an opening for the outer cylinder to pass through is formed in the fixed cover;

the fixed seat is detachably connected with the other end of the fixed cover;

wherein, the fixed cover and the outer cylinder form a spherical pair.

6. The connecting structure according to claim 5, wherein a first protrusion is provided at an end of the outer cylinder facing the fixing base, a second protrusion is provided at an end of the fixing base facing the fixing cover, and both ends of the first elastic member are connected to the first protrusion and the second protrusion, respectively.

7. The connecting structure according to claim 5, wherein a connecting protrusion is provided at an end of the fixing cover connected to the telescopic sleeve, and an end of the telescopic sleeve is sleeved outside the connecting protrusion.

8. The connection structure of claim 5, wherein the stationary base further comprises:

the connecting cover is provided with one end of the fixed cover far away from the fixed seat and is detachably connected with the fixed cover;

the connecting cover is connected with the fixing cover, and one end of the telescopic sleeve is arranged between the connecting cover and the fixing cover.

9. The connecting structure according to claim 4, wherein a clamping portion is provided on the pull rod member, and one end of the telescopic sleeve is connected with the pull rod member through the clamping portion.

10. The connection structure according to claim 1, comprising:

the first sensor is arranged in the fixed base and is used for determining the rotation position of the outer cylinder relative to the fixed base.

11. The connection structure according to claim 2, further comprising:

the second sensor is arranged in the outer cylinder and is used for determining the sliding position of the inner cylinder relative to the outer cylinder.

12. A mower, comprising:

a housing;

a striker plate connected to the housing by a connecting structure as claimed in any one of claims 1 to 11.