CN220422470U - Locomotive and automobile body connection structure and lawn mower - Google Patents

Abstract

The utility model relates to the technical field of garden tools, and discloses a connecting structure of a head and a body of a mower. The connecting structure comprises a vehicle body transition piece, a left support plate, a right support plate and a rotating frame, wherein the vehicle body transition piece is fixed with a vehicle body; the left support plate and the right support plate are fixed on two sides of the vehicle body transition piece; the rotating frame comprises a bottom plate, a left side plate and a right side plate, the bottom plate is rotationally connected with the headstock through a first rotating shaft, a first arc-shaped groove and a second arc-shaped groove are arranged on the bottom plate, and a first sliding piece and a second sliding piece are respectively and slidably arranged on the bottom plate; the left side plate is rotationally connected with the left support plate through a second rotating shaft, a third arc-shaped groove is formed in the left side plate, and a third sliding piece is installed in the third arc-shaped groove in a sliding mode; the right side plate is rotationally connected with the right support plate through a third rotating shaft, a fourth arc-shaped groove is formed in the right side plate, and a fourth sliding piece is slidably installed in the fourth arc-shaped groove. The utility model can adaptively adjust the angle of the headstock relative to the car body along with the contour change of the ground, has simple and reliable structure, low cost and good stability, and is not easy to turn on one's side.

Description

Locomotive and automobile body connection structure and lawn mower

Technical Field

The utility model relates to the technical field of garden tools, in particular to a connecting structure of a head and a body of a car and a mower.

Background

The existing separated mower has the defects that the head and the body are independent parts, and the head and the body are required to be connected when in use. In the mowing process of the mower, as the lawn is uneven, the mower head is supported by two ground supporting wheels, and when the mower head encounters a pit, the mower head is suspended or only one wheel is supported, so that the mower is not stable to run; when the mower walks to the place with the bulge, the mower can be caused to directly collide with the bulge or integrally roll over, and the condition that grass is entangled with the blade or the grass root is pulled up by the blade can be caused.

In order to solve the above problems, most of the existing mowers use a visual algorithm or a sensor to sense obstacles, and the cutter head is retracted downwards or upwards after the sensor receives a signal. However, the mower has the problems of unstable detection precision, high use cost, poor detection effect under the condition of bad weather and easy rollover.

Therefore, there is a need for a head-body connection structure and a mower to solve the above-mentioned problems.

Disclosure of Invention

Based on the above, the utility model aims to provide the connecting structure of the headstock and the vehicle body and the mower, which can adaptively adjust the angle of the headstock relative to the vehicle body along with the concave-convex change of the ground, do not need to rely on sensor detection, are not influenced by weather change, and have the advantages of simple and reliable structure, low cost, good running stability and difficult side turning.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a vehicle head and vehicle body connecting structure, which comprises a vehicle body transition piece, a left support plate, a right support plate and a rotating frame, wherein the vehicle body transition piece is configured to be fixedly connected with a vehicle body; the left support plate is fixedly connected to one side of the vehicle body transition piece; the right support plate is fixedly connected to the other side of the vehicle body transition piece; the rotating frame comprises a bottom plate, a left side plate and a right side plate, the bottom plate is configured to be in rotary connection with a headstock through a first rotating shaft, a first arc-shaped groove and a second arc-shaped groove which take the first rotating shaft as a circle center are formed in the bottom plate, a first sliding piece is installed in the first arc-shaped groove in a sliding mode, a second sliding piece is installed in the second arc-shaped groove in a sliding mode, and the first sliding piece and the second sliding piece are configured to be fixedly connected with the headstock; the left side plate is rotationally connected with the left support plate through a second rotating shaft, a third arc-shaped groove taking the second rotating shaft as a circle center is formed in the left side plate, a third sliding piece is installed in the third arc-shaped groove in a sliding mode, and the third sliding piece is fixedly connected with the left support plate; the right side plate is rotationally connected with the right support plate through a third rotating shaft, the third rotating shaft and the second rotating shaft are coaxially arranged, a fourth arc-shaped groove taking the third rotating shaft as a circle center is formed in the right side plate, a fourth sliding piece is slidably mounted in the fourth arc-shaped groove, and the fourth sliding piece is fixedly connected with the right support plate.

In some possible embodiments, the first axis of rotation is perpendicular to the second axis of rotation and the third axis of rotation.

In some possible embodiments, the first arcuate slot and the second arcuate slot are centrally symmetric about the first axis of rotation; and the projection of the third arc-shaped groove and the projection of the fourth arc-shaped groove in the direction of the second rotating shaft are overlapped.

In some possible embodiments, the first rotating shaft is a sleeve arranged on the bottom plate, a connecting column is arranged on the headstock, and the sleeve is rotationally sleeved on the connecting column; the second rotating shaft and the third rotating shaft are both bolts.

In some possible embodiments, the first slider, the second slider, the third slider, and the fourth slider are all bolts.

In some possible embodiments, the left side panel and the right side panel are both perpendicular to the bottom panel.

In some possible embodiments, reinforcing ribs are provided between the left side plate and the bottom plate, and between the right side plate and the bottom plate.

In some possible embodiments, the rotating frame is an integrally formed structure.

In some possible embodiments, the vehicle body transition piece is in a frame structure, and comprises a supporting plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are arranged on two sides of the supporting plate, the supporting plate is arranged opposite to the bottom plate, the first side plate is connected with the left side plate, and the second side plate is connected with the right side plate.

The utility model also provides a mower, which comprises a locomotive and a locomotive body, wherein supporting wheels are arranged on two sides of the locomotive, and the mower further comprises the locomotive and locomotive body connecting structure according to any scheme, wherein the locomotive body transition piece is fixedly connected with the locomotive body, the bottom plate is rotatably connected with the locomotive body through the first rotating shaft, and the first sliding piece and the second sliding piece are fixedly connected with the locomotive body.

The beneficial effects of the utility model are as follows:

according to the utility model, a floating connection structure is arranged between the headstock and the vehicle body, the left-right floating of the headstock relative to the vehicle body can be realized through the first rotating shaft, the first arc-shaped groove and the second arc-shaped groove, and the front-back floating of the headstock relative to the vehicle body can be realized through the second rotating shaft, the third arc-shaped groove and the fourth arc-shaped groove, so that the angle of the headstock relative to the vehicle body can be adaptively adjusted along with the concave-convex change of the ground profile in the working process of the headstock without completely depending on the detection of a sensor, and the headstock is not influenced by weather change, and has the advantages of simple and reliable structure, low cost, good running stability and difficult rollover; and because the junction of locomotive and automobile body atress is bigger, this floating connection structure can effectively alleviate locomotive and automobile body junction's atress impact.

Drawings

Fig. 1 is a schematic structural view of a first view angle of a connecting structure of a vehicle head and a vehicle body according to an embodiment of the present utility model;

fig. 2 is a schematic view of a second view structure of a connection structure between a vehicle head and a vehicle body according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of an assembly structure of a headstock, a left support plate, a right support plate and a rotating frame provided by an embodiment of the present utility model;

fig. 4 is an exploded structure schematic view of a headstock, a left support plate, a right support plate and a rotating frame provided by an embodiment of the present utility model;

fig. 5 is a partial structural schematic diagram of fig. 4.

In the figure:

100. a headstock; 110. a connecting column; 200. a support wheel; 300. an auxiliary wheel;

1. a body transition piece; 11. a support plate; 12. a first side plate; 13. a second side plate;

2. a left support plate;

3. a right support plate;

4. a rotating frame; 41. a bottom plate; 410. a first rotating shaft; 411. a first arc-shaped groove; 4111. a first slider; 412. a second arc-shaped groove; 4121. a second slider; 42. a left side plate; 420. a second rotating shaft; 421. a third arc-shaped groove; 4211. a third slider; 43. a right side plate; 430. a third rotating shaft; 431. a fourth arc-shaped groove; 4311. a fourth slider; 44. reinforcing rib plates.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., are orientation or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a locomotive and automobile body connection structure, can be applied to in garden instrument such as lawn mower to the locomotive runs unstably, easily turns on one's side when meetting uneven ground among the prior art, and adopts visual algorithm or sensor to respond to the unstable, use cost high, the big problem of weather effect that exists of detection precision that the obstacle exists. The present embodiment is preferably described with respect to a mower.

As shown in fig. 1 to 5, the vehicle head and vehicle body connection structure provided in this embodiment includes a vehicle body transition piece 1, a left support plate 2, a right support plate 3, and a rotating frame 4. The body transition piece 1 is configured for fixed connection with the body of a lawn mower. The left support plate 2 is fixedly connected to the left side of the vehicle body transition piece 1; the right support plate 3 is fixedly connected to the right side of the vehicle body transition piece 1. The rotating frame 4 includes a bottom plate 41, a left side plate 42, and a right side plate 43. Preferably, the bottom plate 41, the left side plate 42 and the right side plate 43 are formed by integral processing, and the structure is simple, the manufacturing is convenient, and the structural strength is high. In addition, since the junction of the head and the body of the mower is stressed greatly, in this embodiment, the reinforcing ribs 44 are preferably disposed between the left side plate 42 and the bottom plate 41, and between the right side plate 43 and the bottom plate 41, so as to better ensure the structural strength of the rotating frame 4 and prevent the rotating frame from being deformed or broken.

In this embodiment, the bottom plate 41 is configured to be rotatably connected to the rear end of the head 100 of the mower through the first shaft 410, where the first shaft 410 not only can realize rotation of the head 100 relative to the bottom plate 41, but also the first shaft 410 can perform a good supporting function on the rotating frame 4. Preferably, the bottom plate 41 is parallel to the rear end of the vehicle head 100 to improve the connection suitability of the two. The base plate 41 is provided with a first arc-shaped slot 411 and a second arc-shaped slot 412 which take the first rotating shaft 410 as a center, wherein a first sliding piece 4111 is slidably installed in the first arc-shaped slot 411, a second sliding piece 4121 is slidably installed in the second arc-shaped slot 412, and the first sliding piece 4111 and the second sliding piece 4121 are both configured to be fixedly connected with the headstock 100. The arrangement is such that when the left or right wheel of the head 100 encounters an uneven ground, the first slider 4111 slides up or down in the first arc slot 411, and the second slider 4121 slides down or up in the second arc slot 412, so that the head 100 can rotate about the first rotation axis 410 by a certain angle, i.e., the head 100 can float in the left or right direction, thereby achieving good contact of the left or right wheel with the ground.

Further, the left side plate 42 of the present embodiment is rotatably connected to the left support plate 2 through a second rotation shaft 420. Preferably, the left side plate 42 is perpendicular to the bottom plate 41 in order to better achieve the connection of the left side plate 42 with the left support plate 2. The left side plate 42 is provided with a third arc-shaped groove 421 taking the second rotating shaft 420 as a center, a third sliding piece 4211 is slidably arranged in the third arc-shaped groove 421, and the third sliding piece 4211 is fixedly connected with the left support plate 2. In addition, the right side plate 43 of the present embodiment is rotatably connected to the right support plate 3 through a third rotation shaft 430, and the third rotation shaft 430 is coaxially disposed with the second rotation shaft 420. Preferably, the right side plate 43 is perpendicular to the bottom plate 41 in order to better achieve the connection of the right side plate 43 with the right support plate 3. The right side plate 43 is provided with a fourth arc-shaped groove 431 with the third rotating shaft 430 as a center, a fourth sliding part 4311 is slidably installed in the fourth arc-shaped groove 431, and the fourth sliding part 4311 is fixedly connected with the right support plate 3. The above arrangement enables the head 100 to rotate around the second rotation axis 420 (or the third rotation axis 430) at a certain angle by the third slider 4211 sliding up or down in the third arc groove 421 and the fourth slider 4311 sliding up or down in the fourth arc groove 431 when the head 100 encounters uneven ground, i.e. the head 100 can float in the front-rear direction, and the head 100 forms a certain angle with the body, so as to achieve good contact between the wheels and the ground.

In short, the floating connection structure is arranged between the headstock 100 and the vehicle body, the headstock 100 can float left and right relative to the vehicle body through the first rotating shaft 410, the first arc-shaped groove 411 and the second arc-shaped groove 412, and the headstock 100 can float front and back relative to the vehicle body through the second rotating shaft 420, the third rotating shaft 430, the third arc-shaped groove 421 and the fourth arc-shaped groove 431, so that the angle of the headstock 100 relative to the vehicle body can be adaptively adjusted along with the concave-convex change of the ground profile in the working process without completely depending on sensor detection, and the headstock is not influenced by weather change, and has the advantages of simple and reliable structure, low cost, good running stability and difficulty in rollover; and because the junction of locomotive 100 and automobile body atress is bigger, this floating connection structure can effectively alleviate locomotive 100 and automobile body junction's atress impact.

Preferably, the first rotation axis 410 of the present embodiment is perpendicular to the second rotation axis 420 and the third rotation axis 430, specifically, the direction of the first rotation axis 410 is the front-back direction of the mower, and the direction of the second rotation axis 420 and the third rotation axis 430 is the left-right direction of the mower. The device has the advantages of simple structure, easy manufacture and good adaptability with the mower, so that the mower can be better adapted to concave-convex ground with various different outlines. Further, in the present embodiment, the first arc-shaped slot 411 and the second arc-shaped slot 412 are disposed symmetrically about the center of the first rotation shaft 410, which enables the first slider 4111 and the second slider 4121 to have better motion coordination, and ensures the stability of the rotation of the vehicle head 100 about the first rotation shaft 410. Of course, in other embodiments, the first arc-shaped slot 411 and the second arc-shaped slot 412 may not be symmetrical about the first rotation axis 410, for example, the radius of the arc of the first arc-shaped slot 411 is smaller, the radius of the arc of the second arc-shaped slot 412 is larger, the track of the first sliding member 4111 moving is shorter and the track of the second sliding member 4121 moving is longer during the movement, so that the rotation of the vehicle head 100 about the first rotation axis 410 can be realized.

Further, the projections of the third arc-shaped groove 421 and the fourth arc-shaped groove 431 in the direction of the second rotation axis 420 coincide, which makes the movement of the third sliding member 4211 and the fourth sliding member 4321 have good synchronization, and ensures the stability of the rotation of the headstock 100 around the second rotation axis 420. Of course, in other embodiments, the third arc-shaped groove 421 and the fourth arc-shaped groove 431 may have a small arc radius and a large arc radius, and in this case, during the movement, one of the third sliding member 4211 and the fourth sliding member 4321 moves in a short track, and the other moves in a long track, but the rotation of the headstock 100 around the second rotating shaft 420 can also be achieved.

Preferably, the first rotating shaft 410 of the present embodiment is a sleeve disposed on the bottom plate 41, the headstock 100 is provided with a connecting post 110, and the sleeve is rotatably sleeved on the connecting post 110. The connecting column 110 is rotatably connected with the sleeve, so that the connecting column is convenient to connect, stable in rotation and capable of guaranteeing reliable support of the connecting column 110 on the rotating frame 4. Further, the second rotating shaft 420 in this embodiment is a bolt, and a screw portion of the bolt passes through the left side plate 42 and the left support plate 2 and is fixedly connected with a nut; the third rotating shaft 430 is also a bolt, and a screw portion of the bolt passes through the right side plate 43 and the right support plate 3 and is fixedly connected with a nut. In other embodiments, the second shaft 420 and the third shaft 430 may also have pin shafts, connecting posts, and the like, which is not limited to the embodiment.

Further preferably, the first slider 4111, the second slider 4121, the third slider 4211, and the fourth slider 4311 of the present embodiment are all bolts. The screw part of the first slider 4111 passes through the first arc slot 411 and is fixedly connected with the rear end of the headstock 100; the screw part of the second slider 4121 passes through the second arc-shaped groove 412 and is fixedly connected with the rear end of the headstock 100; the screw portion of the third sliding member 4211 passes through the third arc groove 421 and the left support plate 2 and is fixedly connected with the nut; the screw portion of the fourth slider 4311 passes through the fourth arc groove 431 and the right support plate 3 to be fixedly connected with the nut. The device has the advantages of simple structure, convenient and reliable connection and low cost. Of course, in other embodiments, the first slider 4111, the second slider 4121, the third slider 4211 and the fourth slider 4311 may be provided as a slider structure, a pin structure, a rivet structure, etc., which is not limited to the present embodiment.

Preferably, the vehicle body transition piece 1 of the present embodiment has a frame-shaped structure, and includes a support plate 11, and a first side plate 12 and a second side plate 13 provided on both sides of the support plate 11. The support plate 11 is disposed in spaced and opposed relation to the floor 41, and the support plate 11 is adapted to be fixedly connected to the vehicle body, specifically by fasteners. The first side panel 12 is located outside the left side panel 42 and is secured to the left side panel 42, specifically by fasteners. The second side plate 13 is located outside the right side plate 43 and is fixed to the right side plate 43, specifically, may be fixed by a fastener. The embodiment has simple structure, convenient processing and stable and reliable connection.

The present embodiment also provides a mower, including a headstock 100, a vehicle body, and the connecting structure of the headstock and the vehicle body, wherein supporting wheels 200 are provided on two sides of the front end of the headstock 100, and an auxiliary wheel 300 is provided on the rear end of the headstock. The vehicle body transition piece 1 is fixedly connected with a vehicle body, the bottom plate 41 is rotatably connected with the vehicle head 100 through a first rotating shaft 410, and the first sliding piece 4111 and the second sliding piece 4121 are fixedly connected with the vehicle head 100.

In the mower provided in this embodiment, when the situation of uneven ground is encountered during the mowing in the advancing process, the supporting wheel 200 on one side of the mower, for example, the left wheel is driven above the pit, at this time, the left wheel is suspended, and can drop downwards under the action of gravity because the left wheel has no supporting force given by the ground, at this time, the first sliding piece 4111 on the left rear end of the headstock 100 can slide downwards in the first arc-shaped groove 411, and the second sliding piece 4121 on the right rear end of the headstock 100 can slide upwards in the second arc-shaped groove 412, so that the headstock 100 drops downwards leftwards until the headstock is supported on the ground or the limit position of the first arc-shaped groove 411 is reached. Before the left wheel falls to the left lower side, the head 100 and the body of the mower are in a parallel state, and in the falling process, the third sliding part 4211 slides downwards in the third arc-shaped groove 421, and the fourth sliding part 4311 slides downwards in the fourth arc-shaped groove 431, so that the head 100 rotates downwards by a certain included angle relative to the body, namely front and back floating occurs. Then, the left wheel of the headstock 100 is attached to the ground of the pit and continuously moves forward, and as the left wheel moves out of the pit, each sliding piece in the connecting structure of the headstock and the vehicle body also returns in the corresponding arc-shaped groove, and the headstock 100 and the vehicle body return to the parallel state again.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. Locomotive and automobile body connection structure, its characterized in that includes:

a body transition piece (1) configured to be fixedly connected with a body;

the left support plate (2) is fixedly connected to one side of the vehicle body transition piece (1);

the right support plate (3) is fixedly connected to the other side of the vehicle body transition piece (1);

swivel mount (4), comprising:

a base plate (41) configured to be rotatably connected with a vehicle head (100) through a first rotating shaft (410), wherein a first arc-shaped groove (411) and a second arc-shaped groove (412) which take the first rotating shaft (410) as a center are arranged on the base plate (41), a first sliding piece (4111) is slidably installed in the first arc-shaped groove (411), a second sliding piece (4121) is slidably installed in the second arc-shaped groove (412), and the first sliding piece (4111) and the second sliding piece (4121) are configured to be fixedly connected with the vehicle head (100);

the left side plate (42) is rotationally connected with the left support plate (2) through a second rotating shaft (420), a third arc-shaped groove (421) taking the second rotating shaft (420) as a circle center is formed in the left side plate (42), a third sliding piece (4211) is slidably mounted in the third arc-shaped groove (421), and the third sliding piece (4211) is fixedly connected with the left support plate (2); and

the right side plate (43) is rotationally connected with the right support plate (3) through a third rotating shaft (430), the third rotating shaft (430) and the second rotating shaft (420) are coaxially arranged, a fourth arc-shaped groove (431) taking the third rotating shaft (430) as a circle center is formed in the right side plate (43), a fourth sliding piece (4311) is slidably mounted in the fourth arc-shaped groove (431), and the fourth sliding piece (4311) is fixedly connected with the right support plate (3).

2. The vehicle head-to-vehicle body connection structure according to claim 1, wherein the first rotation axis (410) is perpendicular to the second rotation axis (420) and the third rotation axis (430).

3. The vehicle head-to-vehicle body connection structure according to claim 1, wherein the first arc-shaped groove (411) and the second arc-shaped groove (412) are centrosymmetric with respect to the first rotation axis (410); the projections of the third arc-shaped groove (421) and the fourth arc-shaped groove (431) in the direction of the second rotating shaft (420) are overlapped.

4. The vehicle head and vehicle body connection structure according to claim 1, wherein the first rotating shaft (410) is a sleeve arranged on the bottom plate (41), the vehicle head (100) is provided with a connecting column (110), and the sleeve is rotatably sleeved on the connecting column (110); the second rotating shaft (420) and the third rotating shaft (430) are bolts.

5. The vehicle head-to-vehicle body connection structure according to claim 1, wherein the first slider (4111), the second slider (4121), the third slider (4211), and the fourth slider (4311) are bolts.

6. The vehicle head-to-vehicle body connection structure according to claim 1, wherein the left side plate (42) and the right side plate (43) are both perpendicular to the bottom plate (41).

7. The vehicle head and body connecting structure according to claim 1, wherein reinforcing ribs (44) are provided between the left side plate (42) and the bottom plate (41) and between the right side plate (43) and the bottom plate (41).

8. The vehicle head and body connection according to claim 1, characterized in that the swivel mount (4) is of one-piece construction.

9. The vehicle head and vehicle body connecting structure according to claim 1, wherein the vehicle body transition piece (1) is in a frame structure and comprises a supporting plate (11), a first side plate (12) and a second side plate (13) which are arranged on two sides of the supporting plate (11), the supporting plate (11) is arranged opposite to the bottom plate (41), the first side plate (12) is connected with the left side plate (42), and the second side plate (13) is connected with the right side plate (43).

10. Mower, comprising a headstock (100) and a body, wherein supporting wheels (200) are arranged on two sides of the headstock (100), and the mower is characterized by further comprising a headstock and body connecting structure according to any one of claims 1-9, wherein the body transition piece (1) is fixedly connected with the body, the bottom plate (41) is rotatably connected with the headstock (100) through a first rotating shaft (410), and the first sliding piece (4111) and the second sliding piece (4121) are fixedly connected with the headstock (100).