Lawn mower

Abstract

The utility model discloses a mowing machine which comprises a machine shell, a rear cover, a connecting piece and an elastic piece, one end of the rear cover is hinged to the machine shell, an opening is formed in the rear end of the machine shell, one end of the connecting piece is hinged to the rear cover, the other end of the connecting piece is connected with one end of the elastic piece, and the other end of the elastic piece is connected with the machine shell. The rear cover has a covering state for covering the opening, an opening state for completely exposing the opening and a critical state between the opening state and the covering state, and the stretching amount of the elastic piece in the covering state and the stretching amount of the elastic piece in the opening state are both smaller than the stretching amount of the elastic piece in the critical state. The mower can be stabilized in an open state when the rear cover is opened, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of garden tools, in particular to a lawn mower. Background Art

[0002] In the traditional lawn mower design, the rear cover is usually a simple cover plate to cover the internal structure of the lawn mower and protect the cutter. However, this design has some problems: first, the traditional rear cover cannot be stably opened when it is opened, which brings inconvenience to operation; second, the traditional rear cover cannot trigger the power switch to disconnect the lawn mower when it is opened, causing safety problems. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the utility model provides a lawn mower, the rear cover of which can be stably in an open state when opened, and is convenient to operate.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lawn mower comprises a casing, a rear cover hinged to the casing at one end, an opening being provided at the rear end of the casing, a connecting piece and an elastic piece, one end of the connecting piece being hinged to the rear cover, the other end of the connecting piece being connected to one end of the elastic piece, the other end of the elastic piece being connected to the casing, the rear cover having a covering state covering the opening, an open state completely exposing the opening, and a critical state between the open state and the covering state, the stretching amount of the elastic piece in the covering state and the stretching amount of the elastic piece in the open state are both less than the stretching amount of the elastic piece in the critical state.

[0006] In the above technical solution, the opening can be used to take in and put in the grass frame, and the rear cover can cover the opening when it is in the closed state. Since the stretching amount of the elastic member in the closed state and the open state is less than the stretching amount in the critical state, when the rear cover is in the open state, the rear cover cannot cross the critical state without external force, thereby maintaining a stable open state, which enables the operator to take in and put in the grass frame with one hand.

[0007] Preferably, the connecting member is an arc-shaped structure, and the connecting member with the arc-shaped structure bypasses the hinge axis between the rear cover and the casing.

[0008] In the above technical solution, since the arc-shaped connecting member bypasses the hinge shaft, the hinge shaft can be arranged within the axial length range of the hinge shaft, thereby making the structure more compact. At the same time, this design also avoids the cantilever structure, making the stretching rebound structure more stable.

[0009] Preferably, the utility model further comprises a switch for controlling the power supply of the lawn mower, wherein the switch is mounted on the housing, and when the rear cover is in an open state, the rear cover or the connecting member triggers the switch.

[0010] In the above technical solution, when the rear cover is in the open state, the switch is triggered, and after the switch is triggered, the power supply of the lawn mower is disconnected, so that the cutter in the opening stops rotating, thereby ensuring the safety of operation. It is important that as long as the rear cover is in the open state, the switch is always triggered, so that the power supply of the lawn mower is always in the disconnected state, and the machine cannot be started.

[0011] Preferably, a decorative cover is installed on the upper end of the housing, and the switch is arranged below the decorative cover. The decorative cover can protect the switch from being exposed, thereby preventing it from being triggered by mistake. At the same time, the presence of the decorative cover also makes the appearance of the device more beautiful.

[0012] Preferably, the housing is provided with an avoidance groove, and the connector is arranged in the avoidance groove in the closed state. The design of the avoidance groove can effectively avoid the connector, and prevent it from interfering with the housing in the closed state, thereby making the structure more compact.

[0013] Preferably, the connecting member is provided with an abutment portion, and in the open state, the abutment portion abuts against the switch and triggers the switch. The abutment portion can accurately abut the switch to ensure that the switch can be accurately triggered in the open state, thereby controlling the power supply of the lawn mower.

[0014] Preferably, the elastic member is a tension spring, a fixing bracket is mounted on the housing, the lower end of the tension spring is connected to the fixing bracket, and the upper end of the tension spring is connected to the connecting member.

[0015] In the above technical solution, the tension spring is used as an elastic member with good elasticity and stability. By connecting the lower end of the tension spring to the fixed bracket and the upper end to the connecting member, it can be ensured that the back cover remains stable in the open state, and will not shake or shift due to external force or other factors. It also allows the back cover to easily hover at the desired position in the open state, and the user can easily take and place the grass frame or perform other operations. At the same time, when the back cover is closed, the tension spring can also provide a certain resistance to ensure that the back cover can be closed accurately.

[0016] Preferably, when the rear cover is in a critical state, the length direction of the rear cover is perpendicular to the rear end surface of the housing. The solution can reduce the possibility of misoperation and improve the stability and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2It is a structural explosion diagram of the utility model.

[0019] In the figure: housing 1, opening 1.1, back cover 2, switch 3, connecting member 4, abutment portion 4.1, elastic member 5, hinge shaft 6, decorative cover 7, avoidance groove 8, fixing bracket 9. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Embodiment 1:

[0022] like Figure 1 and Figure 2 As shown, a lawn mower comprises a casing 1, a rear cover 2 hinged to the casing 1 at one end, and a switch 3 for controlling the power supply of the lawn mower, wherein the switch 3 is mounted on the casing 1, and an opening 1.1 is provided at the rear end of the casing 1. The lawn mower further comprises a connecting member 4 and an elastic member 5, wherein one end of the connecting member 4 is hinged to the rear cover 2, and the other end of the connecting member 4 is connected to one end of the elastic member 5, and the other end of the elastic member 5 is connected to the casing 1, and the rear cover 2 has a covering state covering the opening 1.1, an open state completely exposing the opening 1.1, and a critical state between the open state and the covering state, wherein the stretching amount of the elastic member 5 in the covering state and the stretching amount of the elastic member 5 in the open state are both less than the stretching amount of the elastic member 5 in the critical state, and when the rear cover 2 is in the open state, the connecting member 4 triggers the switch 3.

[0023] In the above technical solution, the opening 1.1 can be used to take in and put the grass frame, and the rear cover 2 can cover the opening 1.1 when it is in the closed state. When the rear cover 2 is in the open state, the switch 3 is triggered. After the switch 3 is triggered, the power supply of the lawn mower is disconnected, so that the cutter in the opening 1.1 stops rotating, thereby ensuring safe operation. It is important that as long as the rear cover 2 is in the open state, the switch 3 is always triggered, so that the power supply of the lawn mower is always in the disconnected state, and the machine cannot be started. In addition, since the stretching amount of the elastic member 5 in the closed state and the open state is less than the stretching amount in the critical state, when the rear cover 2 is in the open state, the rear cover 2 cannot cross the critical state without being subjected to external force, thereby maintaining a stable open state, which allows the operator to achieve the purpose of taking in and putting in the grass frame with one hand.

[0024] Specifically, the connecting member 4 is an arc-shaped structure, and the connecting member 4 of the arc-shaped structure bypasses the hinge shaft 6 between the rear cover 2 and the housing 1. The housing 1 is provided with an escape groove 8, and in the closed state, the connecting member 4 is arranged in the escape groove 8. A decorative cover 7 is installed on the upper end of the housing 1, and the switch 3 is arranged below the decorative cover 7. The trigger end of the switch 3 faces the escape groove 8. The connecting member 4 is provided with an abutting portion 4.1, and in the open state, the abutting portion 4.1 abuts against the switch 3 and triggers the switch 3.

[0025] In the above technical solution, since the arc-shaped connecting member 4 bypasses the hinge shaft 6, the hinge shaft 6 can be arranged within the axial length range of the hinge shaft 6, thereby making the structure more compact. At the same time, this design also avoids the cantilever structure, making the tensile rebound structure more stable. The design of the avoidance groove 8 can effectively avoid the connecting member 4 and prevent it from interfering with the casing 1 in the covered state, thereby making the structure more compact. The decorative cover 7 can protect the switch 3 from being exposed, thereby avoiding false triggering. At the same time, the presence of the decorative cover 7 also makes the appearance of the device more beautiful. The abutting portion 4.1 can accurately abut the switch 3 to ensure that the switch 3 can be accurately triggered in the open state, thereby controlling the power supply of the lawn mower.

[0026] Preferably, the elastic member 5 is a tension spring, a fixing bracket 9 is installed on the housing 1, the lower end of the tension spring is connected to the fixing bracket 9 through a hook structure, and the upper end of the tension spring is connected to the connecting member 4 through a hook structure.

[0027] In the above technical solution, the tension spring is used as the elastic member 5, which has good elasticity and stability. By connecting the lower end of the tension spring to the fixed bracket 9 and the upper end to the connecting member 4, it can be ensured that the rear cover 2 remains stable in the open state, and the rear cover 2 will not shake or shift due to external force or other factors. It also allows the rear cover 2 to easily hover at the desired position in the open state, and the user can easily take and place the grass frame or perform other operations. At the same time, when the rear cover 2 is closed, the tension spring can also provide a certain resistance to ensure that the rear cover 2 can be accurately closed.

[0028] Preferably, when the rear cover 2 is in a critical state, the length direction of the rear cover 2 is perpendicular to the rear end surface of the housing 1. When the rear cover 2 is in an open state, the angle between the length direction of the rear cover 2 and the rear end surface of the housing 1 is 180°. The solution can reduce the possibility of misoperation and improve the stability and reliability of the device. When the rear cover 2 is opened, the opening can be fully exposed.

[0029] It is understandable that, in another embodiment, when the rear cover 2 is in the open state, the rear cover triggers the switch.

Claims

1. A lawn mower, comprising a housing, a rear cover hinged to the housing at one end, the rear end of the housing being provided with an opening, wherein: It also includes a connecting member and an elastic member, one end of the connecting member is hinged to the back cover, the other end of the connecting member is connected to one end of the elastic member, and the other end of the elastic member is connected to the casing, the back cover has a covering state covering the opening, an open state completely exposing the opening, and a critical state between the open state and the covering state, and the stretching amount of the elastic member in the covering state and the stretching amount of the elastic member in the open state are both smaller than the stretching amount of the elastic member in the critical state.

2. A lawn mower according to claim 1, characterized in that: The connecting piece is an arc-shaped structure, and the connecting piece with the arc-shaped structure bypasses the hinge axis between the rear cover and the housing.

3. A lawn mower according to claim 1, characterized in that: It also includes a switch for controlling the power supply of the lawn mower. The switch is installed on the housing. When the rear cover is in an open state, the rear cover or the connecting member triggers the switch.

4. A lawn mower according to claim 3, characterized in that: A decorative cover is installed on the upper end of the casing, and the switch is arranged below the decorative cover.

5. A lawn mower according to claim 1, 2, 3 or 4, characterized in that: The housing is provided with an escape groove, and in a closed state, the connecting member is arranged in the escape groove.

6. A lawn mower according to claim 3 or 4, characterized in that: The connecting member is provided with an abutting portion, and in the open state, the abutting portion abuts against the switch and triggers the switch.

7. A lawn mower according to claim 1, 2, 3 or 4, characterized in that: The elastic member is a tension spring, a fixing bracket is installed on the housing, the lower end of the tension spring is connected to the fixing bracket, and the upper end of the tension spring is connected to the connecting member.

8. A lawn mower according to claim 1, 2, 3 or 4, characterized in that: When the rear cover is in a critical state, the length direction of the rear cover is perpendicular to the rear end surface of the housing.

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