Safety locking structure and track saw

Abstract

The utility model discloses a safe locking structure and track saw, including holding seat, operating part, linkage rod and locking post, operating part slidingly connects in holding seat, linkage rod has first transmission part, pivot and second transmission part, pivot is rotatably connected with holding seat, and pivot is located between first transmission part and second transmission part, first transmission part is transmission connection with operating part, locking post is slidably arranged in holding seat, locking post can slide to locking position and unlocking position, and locking post is transmission connection with second transmission part, wherein, operating part slides to first position, can drive locking post and slide to locking position along first direction, operating part slides to second position, can drive locking post and slide to unlocking position along second direction. Holding seat is used for user to hold and operate saw body, and user can directly complete locking and unlocking operation on the holding seat held, and operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of electric saw equipment, and in particular to a safety locking structure and a rail saw. Background Technology

[0002] Currently, the common rail saw structure mainly consists of two parts: a slide that moves on a rail and the saw body that performs the cutting operation. The saw body is usually mounted on the slide via a pivot connection, enabling it to perform a key action: at the start of cutting, the saw body needs to rotate downwards so that the cutting disc saw blade penetrates deep into the workpiece; when not cutting, the saw body must be raised and retracted to completely place the high-speed rotating saw blade within a safety guard, away from the operator. Lowering the saw body during this process carries a high operational risk, therefore a safety locking structure is required, which must be unlocked before the saw body can be lowered. In existing technology, the safety locking structure generally involves a limit lock block on the saw body, requiring the user to locate a specific lock block or unlocking lever to operate it. However, this limit lock block is usually located on the side, rear, or in a hard-to-reach place on the saw body. Users must find and operate the unlocking mechanism every time they use the saw, which not only disrupts the continuity of the cutting process and reduces efficiency, but also increases the possibility of misoperation and unnecessary operational burden in emergency or rapid adjustment situations. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a safety locking structure and a rail saw, which can solve the problem of inconvenient operation.

[0004] A safety locking structure according to a first aspect of the present invention includes: a grip base, an operating member, a linkage rod, and a locking pin. The operating member is slidably connected to the grip base. The linkage rod has a first transmission part, a rotating shaft, and a second transmission part. The rotating shaft is rotatably connected to the grip base and is located between the first transmission part and the second transmission part. The first transmission part is drively connected to the operating member. The locking pin is slidably disposed on the grip base. The locking pin can slide to a locked position and an unlocked position, and is drively connected to the second transmission part. The operating member can slide to a first position and a second position. When the operating member slides to the first position, it can drive the linkage rod to rotate around the rotating shaft through the first transmission part, so that the second transmission part can drive the locking pin to slide to the locked position along a first direction. When the operating member slides to the second position, it can drive the linkage rod to rotate around the rotating shaft through the first transmission part, so that the second transmission part can drive the locking pin to slide to the unlocked position along a second direction.

[0005] The safety locking structure according to the embodiment of this utility model has at least the following beneficial effects: the grip seat allows the user to hold and operate the saw body, and the operating component is located on the grip seat, which facilitates the user to slide the operating component to lock and unlock the saw body. When the operating component slides to the first position, the locking pin is locked through the linkage rod. When the operating component slides to the second position, the locking pin is unlocked through the linkage rod. The user can directly complete the operation on the grip seat, making the operation more convenient.

[0006] According to some embodiments of the present invention, a guide structure is provided between the operating member and the first transmission part. The guide structure includes a guide groove and a slider. The guide groove is provided on the operating member, and the slider is provided on the first transmission part. The slider is slidably connected to the guide groove, and the guide groove is inclined toward the second direction along the direction from the first position to the second position.

[0007] According to some embodiments of the present invention, a guide structure is provided between the operating member and the first transmission part. The guide structure includes a guide rail and a mating groove. The guide rail is provided on the operating member, and the mating groove is provided on the first transmission part. The guide rail and the mating groove are slidably connected. The guide rail is inclined toward the second direction along the direction from the first position to the second position.

[0008] According to some embodiments of the present invention, the second transmission part has a clearance hole, the locking post passes through the clearance hole, the locking post has an abutment part, and the abutment part abuts against the side of the second transmission part for transmission.

[0009] According to some embodiments of the present invention, the abutting part abuts against the side of the second transmission part near the second direction, and an elastic element is provided between the abutting part and the gripping seat, the elastic element being able to drive the locking pin to slide toward the locking position.

[0010] According to some embodiments of the present invention, the clearance hole is configured as an oblong hole, and the oblong hole extends from the rotating shaft to the second transmission part.

[0011] According to some embodiments of this utility model, the elastic element is configured as a spring.

[0012] According to some embodiments of the present invention, the operating member is connected to the first transmission part on the side near the grip seat, and the side of the operating member away from the grip seat is provided with friction texture.

[0013] According to a second aspect of the present invention, a rail saw includes a rail saw employing the above-described mounting and locking structure.

[0014] The rail saw according to the embodiments of the present utility model has at least the following beneficial effects: by adopting the above-mentioned safety locking structure, it is easier for users to lock and unlock, making it more convenient to use.

[0015] According to some embodiments of this utility model, the grip is provided with a saw blade, the track seat is provided with a receiving groove, the grip and the track seat are rotatably connected, the grip can be rotated to a working position and a retracted position, in the retracted position the saw blade can be located in the receiving groove, in the working position the saw blade can move out of the receiving groove, the track seat is provided with a limiting part, when the locking pin is in the locking position the locking pin can abut against the limiting part to restrict the grip from rotating to the working position.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of the operating member in the first position in some embodiments of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the operating member in the second position in some embodiments of this utility model;

[0020] Figure 3 This is a schematic diagram of a partial internal structure of a rail saw in some embodiments;

[0021] Figure 4 This is a schematic diagram of the structure when the safety locking mechanism is engaged.

[0022] Figure 5 A schematic diagram of the structure when the security lock is unlocked;

[0023] Figure 6 This is a structural schematic diagram of the operating component;

[0024] Figure 7 This is a schematic diagram of the linkage mechanism;

[0025] Figure 8 This is a schematic diagram of the locking post.

[0026] Figure label:

[0027] Holding base 100;

[0028] Operating component 200, guide groove 210, friction texture 220;

[0029] Linkage rod 300, first transmission part 310, slider 311, rotating shaft 320, second transmission part 330, clearance hole 331;

[0030] Locking post 400, abutment part 410;

[0031] Elastic component 500;

[0032] Track seat 600, limiting part 610. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Reference Figures 1 to 4According to a first aspect embodiment of the present invention, a safety locking structure and rail saw include a grip 100, an operating member 200, a linkage rod 300, and a locking pin 400. The operating member 200 is slidably connected to the grip 100. The linkage rod 300 has a first transmission part 310, a rotating shaft 320, and a second transmission part 330. The rotating shaft 320 is rotatably connected to the grip 100 and is located between the first transmission part 310 and the second transmission part 330. The first transmission part 310 is drively connected to the operating member 200. The locking pin 400 is slidably disposed on the grip 100 and can slide to the locked position. The locking pin 400 is connected to the second transmission part 330 in a transmission configuration. The operating member 200 can slide to a first position and a second position. When the operating member 200 slides to the first position, it can drive the linkage rod 300 to rotate around the rotating shaft 320 through the first transmission part 310, so that the second transmission part 330 can drive the locking pin 400 to slide to the locking position in the first direction. When the operating member 200 slides to the second position, it can drive the linkage rod 300 to rotate around the rotating shaft 320 through the first transmission part 310, so that the second transmission part 330 can drive the locking pin 400 to slide to the unlock position in the second direction. The grip 100 is provided for the user to hold and operate the saw body. The operating component 200 is located on the grip 100, which allows the user to easily slide the operating component 200 to lock and unlock the saw body. When the operating component 200 slides to the first position, it locks the saw body through the linkage rod 300 and the locking pin 400. When the operating component 200 slides to the second position, it can unlock the saw body through the linkage rod 300 and the locking pin 400. The user can directly complete the operation on the grip 100, making the operation more convenient.

[0037] Specifically, the grip 100 allows the user to hold and move the saw blade. The operating element 200 is located on the grip 100, allowing the user to operate the operating element 200 directly while holding the blade, eliminating the need to locate the unlocking block and making the cutting operation smoother. When the operating element 200 slides, it drives the linkage rod 300 to rotate around the pivot 320 via the first transmission part 310, which in turn drives the second transmission part 330 to swing. The second transmission part 330 is connected to the locking pin 400. When the second transmission part 330 swings, it drives the locking pin 400 to slide along a first or second direction. When the locking pin 400 slides to the locked position, it engages with a corresponding limiting structure to restrict the grip 100 from lowering. The specific limiting structure is not limited here. Similarly, when the locking pin 400 slides to the unlocked position, the grip 100 can be lowered, and the saw blade can extend to work.

[0038] Reference Figures 3 to 6In some embodiments of this utility model, a guide structure is provided between the operating member 200 and the first transmission part 310. The guide structure includes a guide groove 210 and a slider 311. The guide groove 210 is provided on the operating member 200, and the slider 311 is provided on the first transmission part 310. The slider 311 is slidably connected to the guide groove 210, and the guide groove 210 is inclined towards the second direction along the direction from the first position to the second position. Specifically, the slider 311 is slidably connected to the guide groove 210. When the operating member 200 slides along the direction from the first position to the second position, the inclined guide groove 210 can guide the slider 311 to swing around the rotating shaft 320 in the first or second direction, thereby driving the second transmission part 330 to swing to transmit power to the locking pin 400. Through the above structure, the transmission structure can be simplified, the number of transmission components can be reduced, and the transmission is stable and reliable with low manufacturing cost.

[0039] In some embodiments of this utility model, a guide structure is provided between the operating member 200 and the first transmission part 310. The guide structure includes a guide rail and a mating groove (not shown in the figures). The guide rail is provided on the operating member 200, and the mating groove is provided on the first transmission part 310. The guide rail and the mating groove are slidably connected, and the guide rail is inclined towards the second direction along the direction from the first position to the second position. Specifically, it can be understood that the operating member 200 may also be provided with a guide rail, and the shape of the mating groove matches that of the guide rail. When the operating member 200 slides, the inclined guide rail can drive the first transmission part 310 to swing around the rotating shaft 320 in the first direction or the second direction. Similarly, the second transmission part 330 can swing and transmit power to the locking pin 400.

[0040] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 In some embodiments of this utility model, the second transmission part 330 has a clearance hole 331, and the locking pin 400 passes through the clearance hole 331. The locking pin 400 has an abutment part 410, which abuts against the side of the second transmission part 330 for transmission. Specifically, the locking pin 400 passes through the clearance hole 331, which can avoid the locking pin 400 when the second transmission part 330 swings. The abutment part 410 can be engaged with the locking pin 400 and abuts against the side of the second transmission part 330. When the second transmission part 330 swings, the locking pin 400 can be driven to slide through the abutment part 410. The transmission structure is quite ingenious.

[0041] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7In some embodiments of this utility model, the abutment portion 410 abuts against the side of the second transmission portion 330 near the second direction, and an elastic element 500 is provided between the abutment portion 410 and the grip 100. The elastic element 500 can drive the locking pin 400 to slide toward the locking position. Specifically, one end of the elastic element 500 abuts against the grip 100, and the other end abuts against the abutment portion 410. When the operating member 200 slides to the second position to unlock, the second transmission portion 330 can drive the locking pin 400 to move toward the second direction through the abutment portion 410 and compress the elastic element 500. When the grip 100 retracts the saw body, the elastic element 500 can drive the locking pin 400 to return to the locking position. Locking can be completed without the user operating the operating member 200. Furthermore, the automatic reset of the locking pin 400 by the elastic element 500 can prevent the user from forgetting the locking operation and improve safety.

[0042] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 In some embodiments of this utility model, the clearance hole 331 is designed as an oblong hole, and the oblong hole extends from the rotating shaft 320 to the second transmission part 330. Specifically, when the second transmission part 330 swings around the rotating shaft 320, the oblong hole can avoid the locking pin 400 and drive the locking pin 400 to slide along the first direction or the second direction.

[0043] It is understandable that the grip 100 generally extends along the extension direction of the track, the direction of the operating member 200 from the first position to the second position is roughly similar to the extension direction of the track, and the track seat 600 that cooperates with the locking pin 400 is generally located on one side of the grip 100. Therefore, the first direction or the second direction is roughly perpendicular to the direction from the first position to the second position.

[0044] Reference Figures 3 to 4 In some embodiments of this utility model, the elastic element 500 is a spring. The locking post 400 can pass through the spring, so that the spring can cooperate with the locking post 400 for positioning, and the spring has low installation cost.

[0045] Reference Figures 1 to 4 In some embodiments of this utility model, the operating member 200 is connected to the first transmission part 310 on the side near the grip 100, and the side of the operating member 200 away from the grip 100 is provided with friction texture 220. Specifically, the surface of the operating member 200 may be provided with friction texture 220 perpendicular to the sliding direction of the operating member 200, so as to facilitate the operator to push the operating member 200 to slide.

[0046] Reference Figures 1 to 3The rail saw according to a second aspect embodiment of the present invention includes a rail saw employing the above-described mounting and locking structure. By employing the above-described safety locking structure, it is easier for the user to lock and unlock, making it more convenient to use.

[0047] Reference Figures 1 to 3 In some embodiments of this utility model, the grip 100 is provided with a saw blade, and the track seat 600 is provided with a receiving groove. The grip 100 and the track seat 600 are rotatably connected. The grip 100 can rotate to a working position and a retracted position. In the retracted position, the saw blade can be located in the receiving groove. In the working position, the saw blade can move out of the receiving groove. The track seat 600 is provided with a limiting part 610. When the locking pin 400 is in the locked position, the locking pin 400 can abut against the limiting part 610 to restrict the grip 100 from rotating to the working position. Specifically, the track seat 600 can be slidably connected to the track. The track seat 600 has a receiving groove on one side, and the grip seat 100 is located on the receiving groove. The grip seat 100 can be equipped with a drive motor for driving the saw blade to rotate and a saw blade. The saw blade is located in the receiving groove, and the receiving groove can accommodate the saw blade to retract, forming a safety guard. When the grip seat 100 rotates to the working position, the saw blade can be lowered from the receiving groove. When the grip seat 100 rotates to the retracted position, the saw blade can be retracted into the receiving groove for protection. The track seat 600 can be provided with a limiting part 610. When the locking post 400 is in the locked position, the locking post 400 can extend and abut against the limiting part 610 to restrict the grip seat 100 from rotating to the working position. When the locking post 400 is in the working position, it can disengage from the limiting part 610, and the grip seat 100 can rotate and lower the saw blade.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A safety locking structure, characterized in that, include: Holding base (100); The operating element (200) is slidably connected to the grip (100); The linkage rod (300) has a first transmission part (310), a rotating shaft (320) and a second transmission part (330). The rotating shaft (320) is rotatably connected to the grip (100) and is located between the first transmission part (310) and the second transmission part (330). The first transmission part (310) is drively connected to the operating member (200). A locking post (400) is slidably disposed on the grip base (100). The locking post (400) can slide to a locked position and an unlocked position, and the locking post (400) is convexly connected to the second transmission part (330). The operating member (200) can slide to a first position and a second position. When the operating member (200) slides to the first position, it can drive the linkage rod (300) to rotate around the rotating shaft (320) through the first transmission part (310), so that the second transmission part (330) can drive the locking pin (400) to slide to the locking position along the first direction. When the operating member (200) slides to the second position, it can drive the linkage rod (300) to rotate around the rotating shaft (320) through the first transmission part (310), so that the second transmission part (330) can drive the locking pin (400) to slide to the unlocking position along the second direction.

2. The security locking structure according to claim 1, characterized in that, A guide structure is provided between the operating member (200) and the first transmission part (310). The guide structure includes a guide groove (210) and a slider (311). The guide groove (210) is provided on the operating member (200), and the slider (311) is provided on the first transmission part (310). The slider (311) is slidably connected to the guide groove (210). The guide groove (210) is inclined towards the second direction along the direction from the first position to the second position.

3. The security locking structure according to claim 1, characterized in that, A guide structure is provided between the operating member (200) and the first transmission part (310). The guide structure includes a guide rail and a mating groove. The guide rail is provided on the operating member (200), and the mating groove is provided on the first transmission part (310). The guide rail and the mating groove are slidably connected. The guide rail is inclined towards the second direction along the direction from the first position to the second position.

4. The security locking structure according to claim 1, characterized in that, The second transmission part (330) has a clearance hole (331), the locking pin (400) passes through the clearance hole (331), the locking pin (400) has an abutment part (410), and the abutment part (410) abuts and drives the second transmission part (330) on the side.

5. The security locking structure according to claim 4, characterized in that, The abutting part (410) abuts against the side of the second transmission part (330) near the second direction, and an elastic element (500) is provided between the abutting part (410) and the grip (100), the elastic element (500) being able to drive the locking pin (400) to slide toward the locking position.

6. The security locking structure according to claim 5, characterized in that, The clearance hole (331) is a waist-shaped hole, and the waist-shaped hole extends from the rotating shaft (320) to the second transmission part (330).

7. The security locking structure according to claim 5, characterized in that, The elastic element (500) is configured as a spring.

8. The security locking structure according to claim 5, characterized in that, The operating member (200) is connected to the first transmission part (310) on the side near the grip (100), and the side of the operating member (200) away from the grip (100) is provided with friction texture (220).

9. A rail saw, characterized in that, Includes the security locking structure according to any one of claims 1-8.

10. The rail saw according to claim 9, characterized in that, It also includes a track seat (600), the grip seat (100) is provided with a saw blade, the track seat (600) is provided with a receiving groove, the grip seat (100) and the track seat (600) are rotatably connected, the grip seat (100) can rotate to a working position and a retracted position, in the retracted position the saw blade can be located in the receiving groove, in the working position the saw blade can move out of the receiving groove, the track seat (600) is provided with a limiting part (610), when the locking pin (400) is in the locking position, the locking pin (400) can abut against the limiting part (610) to restrict the grip seat (100) from rotating to the working position.

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