Self-locking structure for mini-tiller and mini-tiller

Abstract

The utility model discloses a kind of self-locking structure and micro tiller for micro tiller, comprising: shell, switch piece and self-locking piece;Shell is equipped with mounting groove and mounting hole;Switch piece rotation is equipped in the mounting groove;Self-locking piece includes the trigger portion and limiting portion connected, the trigger portion sliding is equipped in the mounting hole, and part protrudes from the shell, under the action of external force, the trigger portion linkage the limiting portion and the switch piece abut or present staggered arrangement, and form self-locking state or unlock state;In the self-locking state, the limiting portion is used to limit the rotation of the switch piece;In the unlock state, the limiting portion and the switch piece cancel location cooperation.The utility model solves the problem of poor reliability and convenience in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of micro-tiller technology, specifically to a self-locking structure for a micro-tiller and a micro-tiller. Background Technology

[0002] There is a possibility that the mini tiller may start unexpectedly due to accidental activation of the switch button after being powered on. To address this, an additional anti-accidental activation mechanism is often installed. However, existing anti-accidental activation mechanisms usually require both hands to unlock, which seriously affects efficiency and convenience during operations that require frequent starts, stops, and adjustments. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a self-locking structure for a micro-tiller and a micro-tiller, so as to solve the problems of poor reliability and convenience in the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The self-locking mechanism for micro-tillers includes:

[0006] The housing is provided with mounting grooves and mounting holes;

[0007] A switch element is rotatably mounted in the mounting slot;

[0008] The self-locking component includes a trigger part and a limiting part connected to each other. The trigger part is slidably disposed in the mounting hole and partially protrudes outside the housing. Under the action of external force, the trigger part, together with the limiting part, abuts against or is staggered with the switch component, and forms a self-locking state or an unlocking state.

[0009] In the self-locking state, the limiting part is used to restrict the rotation of the switching element;

[0010] In the unlocked state, the limiting part and the switch are released from the limiting engagement.

[0011] Furthermore, one end of the switch is rotatably connected to the housing, and the other end is provided with a protrusion, which abuts against or is staggered with the limiting part.

[0012] Furthermore, there are two protrusions arranged opposite each other, with a first clearance opening formed between them. In the unlocked state, the limiting part is located in the extending direction of the first clearance opening.

[0013] Furthermore, there are two limiting parts, one of which is a first limiting part and the other is a second limiting part. In the self-locking state, the first limiting part and the second limiting part abut against the two protrusions one by one. In the unlocking state, the first limiting part and the second limiting part are staggered with the two protrusions.

[0014] Furthermore, a second clearance is formed between the first limiting part and the second limiting part to avoid the protrusion.

[0015] Furthermore, the end of the switch component opposite to the protrusion is provided with a rotating shaft, which is rotatably mounted on the housing.

[0016] Furthermore, the rotating shaft is fitted with a torsion spring.

[0017] Furthermore, the housing is provided with a positioning block for contacting or separating from the switch element.

[0018] Furthermore, the triggering part and / or the limiting part are provided with guide grooves, and the housing is provided with guide blocks. The guide blocks are slidably disposed in the guide grooves, and their sliding direction is the same as that of the triggering part.

[0019] A mini-tiller, including: the self-locking structure for a mini-tiller described above.

[0020] Compared with the prior art, this utility model has the following advantages: the trigger part can physically interfere with and restrict or release the rotational freedom of the switch component through the limiting part, so that the limiting part and the switch component can be directly and rigidly abutted in the self-locking state to form a mechanical block, thereby preventing the switch component from rotating accidentally; furthermore, only one hand is needed to press or push the protruding trigger part to release the limiting part from the switch component, and the switch component can be rotated after switching to the unlocked state, which is convenient and quick. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the self-locking structure for a micro-tiller according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the self-locking structure for a micro-tiller according to another embodiment of the present invention;

[0023] Figure 3 for Figure 2 Sectional view along line AA;

[0024] Figure 4 This is a schematic diagram of the structure of an embodiment of the present invention in a self-locking state;

[0025] Figure 5This is a schematic diagram of the structure of an embodiment of the present invention in the unlocked state.

[0026] The reference numerals in the accompanying drawings include:

[0027] 1. Housing; 2. Switching component; 201. Protrusion; 202. First clearance opening; 3. Self-locking component; 301. Triggering part; 302. Limiting part; 303. Second clearance opening; 4. Rotating shaft; 5. Positioning block; 6. Guide groove; 7. Guide block. Detailed Implementation

[0028] The present invention will be further described in detail below through specific embodiments:

[0029] In the embodiments of this utility model, such as Figures 1-5 As shown, the self-locking structure for a micro-tiller includes: a housing 1, a switch 2, and a self-locking component 3; the housing 1 has a mounting groove and a mounting hole; the switch 2 is rotatably disposed in the mounting groove; the self-locking component 3 includes a trigger part 301 and a limiting part 302 connected to each other, the trigger part 301 is slidably disposed in the mounting hole and partially protrudes beyond the housing 1, under the action of external force, the trigger part 301, in conjunction with the limiting part 302, abuts against or is staggered with the switch 2, forming a self-locking state or an unlocked state; in the self-locking state, the limiting part 302 is used to restrict the rotation of the switch 2; in the unlocked state, the limiting part 302 releases the limiting engagement with the switch 2.

[0030] Specifically, in this embodiment of the utility model, the housing 1 is formed with a handle, and a mounting groove is provided at the lower part of the handle, which is connected to the internal space of the housing 1; a mounting hole is provided near the handle, which can penetrate the housing 1.

[0031] Specifically, the switch 2 is rotatably mounted in the mounting groove to form an operating state when rotating inwards towards the housing 1 and a standby state when rotating outwards towards the housing 1. Its rotation angle can be adaptively adjusted according to the internal space of the housing 1 and its internal components, which will not be detailed here. On the other hand, to prevent accidental activation of the switch 2, this embodiment includes a self-locking component 3. This self-locking component 3 includes a trigger portion 301 and a limiting portion 302 connected together. The trigger portion 301 is a columnar structure and is slidably mounted at the mounting hole. Furthermore, to facilitate pressing or pushing the trigger portion 301, the length of the trigger portion 301 is greater than the length of the mounting hole, allowing the end of the trigger portion 301 to protrude outside the housing 1. The aforementioned limiting portion 302 is located inside the housing 1 and can abut or separate from the switch 2, thereby forming a self-locking state or an unlocked state. In other words, in the self-locking state, the limiting part 302 abuts against the switch 2. Due to the physical interference of the limiting part 302, the rotation of the switch 2 is restricted, forming an anti-accidental touch mode. Conversely, when an external force is applied to the trigger part 301, the trigger part 301 slides relative to the switch 2, thereby causing the limiting part 302 to slide as well. This results in the limiting part 302 and the switch 2 being staggered. After they separate, the restriction on the switch 2 is released, allowing the switch 2 to rotate under the action of external force. Similarly, pushing the trigger part 301 in the opposite direction, so that it abuts against the switch 2 again, switches from the unlocked state to the self-locking state. Thus, through the bidirectional sliding of the trigger part 301, a rapid switch between the self-locking and unlocked states can be achieved. When the handle is held, the thumb presses the trigger part 301 to separate the limiting part 302 from the switch 2, while the other fingers can simultaneously rotate the switch 2, seamlessly connecting the operation to achieve one-button unlocking. The structure is simple and the operation is convenient. Of course, the trigger part 301 can be equipped with a corresponding anti-slip layer, which can be provided on the part of the trigger part 301 that protrudes from the housing 1; and / or, an anti-slip layer can be provided on the limiting part 302 to increase the friction with the switch 2 and prevent the limiting part 302 from automatically disengaging from the switch 2 under vibration. An indicator mark can also be provided on the housing 1, which can be in graphic or indicator light form, to indicate whether the self-locking member 3 is in a self-locking or unlocked state. For example, in the self-locking state, the indicator light is off; in the unlocked state, the indicator light is on.

[0032] In this embodiment, a trigger part 301 is slidably disposed on the housing 1. The trigger part 301 is connected to a limiting part 302, so that when an external force is applied to the trigger part 301, the limiting part 302 slides accordingly. This allows the limiting part 302 to abut against the switch member 2 and restrict the rotational freedom of the switch member 2 through physical interference. Alternatively, the limiting part 302 and the switch member 2 can be staggered to release the restriction on the switch member 2, making it easier for the switch member 2 to rotate after release. This not only solves the problem of accidental activation of the switch member 2, but also makes self-locking or unlocking more convenient and faster in response time by using the linear sliding method of the trigger part 301, thereby improving efficiency.

[0033] like Figures 3-5 As shown, in one embodiment, one end of the switch 2 is rotatably connected to the housing 1, and the other end is provided with a protrusion 201. The protrusion 201 abuts against or is staggered with the limiting part 302. Specifically, in order to form a self-locking or unlocking state after the switch 2 and the limiting part 302 are engaged, this embodiment provides a protrusion 201 at the switch 2. The protrusion 201 is integrally formed with the switch 2 and can abut against or separate from the limiting part 302, thereby forming a concentrated force and making the locking more secure. In addition, one end of the switch 2 is rotatably connected to the housing 1, and the other end is provided with a protrusion 201, so that the protrusion 201 is set away from the rotation point of the switch 2, which can generate a larger locking torque with a smaller pressing force.

[0034] Furthermore, such as Figure 4 , Figure 5 As shown, in one embodiment, two protrusions 201 are provided, and the two protrusions 201 are arranged opposite each other, forming a first clearance opening 202 between them. In the unlocked state, the limiting part 302 is located in the extending direction of the first clearance opening 202. Specifically, in the unlocked state, in order to avoid the limiting part 302 still interfering with the rotational freedom of the switch 2, this embodiment provides two protrusions 201. After the two protrusions 201 are arranged opposite each other, a first clearance opening 202 can be formed between them. When unlocked, the limiting part 302 can slide into the extending direction of the first clearance opening 202, and the width of the first clearance opening 202 is greater than the width of the limiting part 302, so that the protrusions 201 and the limiting part 302 are completely staggered, avoiding rotational interference to the protrusions 201. Furthermore, when the switch 2 rotates and the limiting part 302 abuts against the bottom of the first clearance opening 202, the switch 2 rotates to its maximum rotation angle, which can give the operator feedback that the switch 2 is fully in place.

[0035] Furthermore, such as Figure 4 , Figure 5As shown, in one embodiment, two limiting portions 302 are provided. One of the two limiting portions 302 is a first limiting portion, and the other is a second limiting portion. In the self-locking state, the first limiting portion and the second limiting portion abut against the two protrusions 201 one-to-one. In the unlocking state, the first limiting portion and the second limiting portion are staggered with the two protrusions 201. Specifically, in order to improve the self-locking force, this embodiment provides two limiting portions 302, so that the two limiting portions 302 can correspond one-to-one with the two protrusions 201. That is, in the self-locking state, the two limiting portions 302 abut against the two protrusions 201 respectively, and in the unlocking state, the two limiting portions 302 are staggered with the two protrusions 201. Of course, the two opposite end faces of the two limiting parts 302 can respectively form a first limiting end face and a second limiting end face, which are used to abut or separate from the two positioning end faces (not shown) of the housing 1 to position the limiting part 302 so that it can switch between the self-locking state and the unlocking state, and at the same time, it can also prevent the limiting part 302 from sliding too much and disengaging from the protrusion 201.

[0036] Preferably, such as Figure 4 , Figure 5 As shown, a second clearance opening 303 is formed between the first limiting part and the second limiting part to avoid the protrusion 201. The second clearance opening 303 has a similar function to the first clearance opening 202. In the unlocked state, it can avoid the protrusion 201 so that the protrusion 201 can rotate with the switch member 2. When the protrusion 201 rotates to abut against the second clearance opening 303, the rotation angle of the switch member 2 is at its maximum.

[0037] like Figure 4 , Figure 5 As shown, in one embodiment, the end of the switch 2 opposite to the protrusion 201 is provided with a rotating shaft 4, which is rotatably mounted on the housing 1. Specifically, in order to enable the switch 2 to rotate relative to the housing 1, this embodiment provides a rotating shaft 4 at the switch 2, which is rotatably connected to the housing 1. Under the action of external force, the switch 2 can rotate around the axis of the rotating shaft 4. Preferably, the rotating shaft 4 is fitted with a torsion spring, which enables the switch 2 to quickly reset after the external force is removed.

[0038] like Figure 3As shown, in one embodiment, the housing 1 is provided with a positioning block 5 for abutting or separating from the switch member 2. Specifically, in order to position the switch member 2 in the self-locking state, this embodiment provides a positioning block 5 on the housing 1, which is integrally formed with the housing 1, so that the switch member 2 can abut or separate from the positioning block 5. That is: in the self-locking state, the protrusion 201 of the switch member 2 abuts against the limiting part 302, and its end abuts against the positioning block 5; conversely, in the unlocked state, the protrusion 201 of the switch member 2 separates from the limiting part 302, and the switch member 2 separates from the positioning block 5. Of course, in order to adapt to the shape of the housing 1 and cooperate with the positioning block 5, such as Figure 3 As shown, the end of the switch 2 can be provided with a hook structure for locking onto the positioning block 5.

[0039] like Figures 3-5 As shown, in one embodiment, the trigger part 301 and / or the limiting part 302 are provided with guide grooves 6, and the housing 1 is provided with guide blocks 7. The guide blocks 7 are slidably disposed in the guide grooves 6, and their sliding direction is the same as that of the trigger part 301. Specifically, in order to guide the self-locking member 3 to move linearly, this embodiment provides a guide groove 6 at one end of the limiting part 302 near the trigger part 301, and provides a guide block 7 in the housing 1. When the trigger part 301 slides relative to the housing 1, the guide block 7 can slide relative to the guide groove 6, and the sliding directions of the two are the same, thereby guiding and constraining the movement direction of the self-locking member 3. Of course, according to the structural design, the guide groove 6 described above can also be provided at the corresponding position of the trigger part 301, and the guide block 7 provided on the housing 1 should also be adaptively adjusted according to the position of the guide groove 6.

[0040] This embodiment also provides a mini-tiller, including the self-locking structure for the mini-tiller described above. The specific structure of the self-locking structure for the mini-tiller is as described in the above embodiment. Since this mini-tiller adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A self-locking structure for a mini-tiller, characterized by, include: The housing is provided with mounting grooves and mounting holes; A switch element is rotatably mounted in the mounting slot; The self-locking component includes a trigger part and a limiting part connected to each other. The trigger part is slidably disposed in the mounting hole and partially protrudes outside the housing. Under the action of external force, the trigger part, together with the limiting part, abuts against or is staggered with the switch component, and forms a self-locking state or an unlocking state. In the self-locking state, the limiting part is used to restrict the rotation of the switching element; In the unlocked state, the limiting part and the switch are released from the limiting engagement.

2. The self-locking structure for a mini-tiller according to claim 1, wherein One end of the switch is rotatably connected to the housing, and the other end is provided with a protrusion, which abuts against or is staggered with the limiting part.

3. The self-locking structure for a mini-tiller according to claim 2, wherein The protrusion is provided in two parts, which are arranged opposite each other and form a first clearance opening between them. In the unlocked state, the limiting part is located in the extension direction of the first clearance opening.

4. The self-locking structure for a mini-tiller according to claim 3, wherein The limiting part is provided in two parts, one of which is a first limiting part and the other is a second limiting part. In the self-locking state, the first limiting part and the second limiting part abut against the two protrusions in a one-to-one correspondence. In the unlocking state, the first limiting part and the second limiting part are staggered with the two protrusions.

5. The self-locking structure for a mini-tiller according to claim 4, wherein A second clearance is formed between the first limiting part and the second limiting part to avoid the protrusion.

6. The self-locking structure for a mini-tiller according to any one of claims 2 to 5, wherein The switch component has a rotating shaft at the end opposite to the protrusion, and the rotating shaft is rotatably mounted on the housing.

7. The self-locking structure for a mini-tiller according to claim 6, wherein The rotating shaft is fitted with a torsion spring.

8. The self-locking structure for a mini-tiller according to claim 1, wherein The housing is provided with a positioning block for contacting or separating from the switch.

9. The self-locking structure for a mini-tiller according to claim 1, wherein The triggering part and / or the limiting part are provided with guide grooves, and the housing is provided with guide blocks. The guide blocks are slidably disposed in the guide grooves, and their sliding direction is the same as that of the triggering part.

10. A mini-tiller characterized by, include: The self-locking structure for a micro-tiller as described in any one of claims 1-9.

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