Telescopic guide structure of cutting saw

Abstract

The utility model provides a telescopic guide structure of a cutting saw, and belongs to the technical field of miter saws. The telescopic guide structure comprises a rear support, a front support, a telescopic rod and two support arms, the rear support and the front support are oppositely arranged, the rear support and the front support are connected through the telescopic rod, the front support is connected with the saw blade mechanism, one of the two support arms is rotationally connected with the rear support, and the other of the two support arms is rotationally connected with the front support. The ends, close to each other, of the two supporting arms are rotationally connected so that the saw blade mechanism can horizontally move along a straight line. According to the telescopic guide structure of the cutting saw, linear motion of the saw blade of the cutting saw is achieved through the telescopic rod and the two supporting arms which form the triangular structure, whether objects exist at the rear end of a machine table or not does not need to be noticed in the use process of the miter saw, and the use space of the miter saw is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of miter saws, in particular to a telescopic guide structure of a cutting saw. Background Art

[0002] A miter saw is a movable electric saw used for cutting wood, plastic, non-ferrous metals, etc. It consists of a base, a working disk, a motor, a saw blade, a front support, and a linear motion structure. Among them, the horizontal linear motion structure of the saw blade is used to move the saw blade along a vertical plane, so that the miter saw has a larger cutting range and strictly prevents the saw blade from moving horizontally.

[0003] Existing miter saws mainly use a pull rod structure as a guide so that the saw blade can move forward and backward. One end of the pull rod structure is fixed to the front support body, and the other end slides on the rear support of the workbench. However, when using the pull rod structure, space must be provided behind the front support body to allow the pull rod structure to extend when the saw blade is adjacent. Therefore, first of all, it is necessary to pay attention to whether there is an object at the rear end of the machine. If there is an object, it will affect the movement of the pull rod structure. If the pull rod is accidentally touched during the cutting process, it will affect the cutting of the machine; secondly, the pull rod structure takes up a large space for operation and cannot be placed against a wall for use.

[0004] Therefore, it is urgent to design a telescopic guide structure of a cutting saw to solve the above problems. Utility Model Content

[0005] The purpose of the present disclosure is to overcome the above-mentioned deficiencies of the prior art and provide a telescopic guide structure for a cutting saw.

[0006] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0007] According to one aspect of the present disclosure, a telescopic guide structure of a cutting saw is provided, the telescopic guide structure comprising a rear support and a front support arranged opposite to each other, a telescopic rod, and two support arms.

[0008] The rear support is connected to the front support via the telescopic rod, the front support is connected to the saw blade mechanism, one of the two support arms is rotatably connected to the rear support, the other of the two support arms is rotatably connected to the front support, and the ends of the two support arms that are close to each other are rotatably connected so that the saw blade mechanism can move horizontally along a straight line.

[0009] In an exemplary embodiment of the present disclosure, the telescopic rod includes a plurality of slots sequentially sleeved along the axis direction of the rear support and the front support, and two adjacent slots are movably connected via a sliding mechanism;

[0010] The slot body at one end is connected to one of the rear support and the front support, and the slot body at the other end is connected to the other of the rear support and the front support.

[0011] In an exemplary embodiment of the present disclosure, the trough body has a bottom wall and three side walls arranged around the bottom wall, and the openings of the plurality of trough bodies face the same direction;

[0012] The sizes of the plurality of slots gradually decrease along the direction of the opening.

[0013] In an exemplary embodiment of the present disclosure, the larger one of any two adjacent slots is defined as a first slot, and the smaller one of any two adjacent slots is defined as a second slot;

[0014] The second slot body is movably connected to the first slot body through the sliding mechanism.

[0015] In an exemplary embodiment of the present disclosure, the sliding mechanism comprises:

[0016] A positioning sliding guide rail is provided on the inner side wall of the first groove body, and the positioning sliding guide rail is provided along the axis direction of the rear support and the front support;

[0017] The positioning wheel is rotatably arranged on the outer side wall of the second slot body, and the positioning wheel can reciprocate on the positioning sliding guide rail.

[0018] In an exemplary embodiment of the present disclosure, limiting columns are respectively provided at both ends of the positioning sliding guide rail.

[0019] In an exemplary embodiment of the present disclosure, the positioning sliding guide rail is connected to the first slot body by screws.

[0020] In an exemplary embodiment of the present disclosure, the telescopic guide structure further includes a workbench,

[0021] The rear support is arranged at the rear end of the workbench, and the front support is arranged above the workbench.

[0022] In an exemplary embodiment of the present disclosure, the telescopic guide structure further includes a limiting groove body.

[0023] The limiting groove body is arranged at one end of the workbench away from the rear support, and the limiting groove body is located below the saw blade mechanism, and the saw blade mechanism can reciprocate in the limiting groove body.

[0024] The utility model has at least the following beneficial effects:

[0025] The utility model provides a telescopic guide structure of a cutting saw, which forms a triangular structure through a telescopic rod and two supporting arms. The telescopic guide structure has good stability, and the linear motion of the saw blade of the cutting saw is achieved through the extension and retraction of the telescopic rod, so that when the miter saw is in use, it is not necessary to pay attention to whether there is an object at the rear end of the machine table, so as to avoid affecting the linear motion of the saw blade, thereby reducing the use space of the miter saw and enabling the miter saw to be used against a wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0027] Figure 1 This is a schematic structural diagram of a telescopic guide structure of a cutting saw in one embodiment of the present disclosure;

[0028] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0029] Figure 3 A right side view of a telescopic guide structure of a cutting saw in one embodiment of the present disclosure;

[0030] Figure 4 It is a left side view of the telescopic guide structure of the cutting saw in one embodiment of the present disclosure.

[0031] Description of reference numerals:

[0032] 1. Rear support; 2. Front support; 3. Telescopic rod; 4. Support arm; 5. Saw blade mechanism; 6. Trough body; 7. Sliding mechanism; 8. Positioning sliding guide rail; 9. Positioning wheel; 10. Limiting column; 11. Workbench; 12. Limiting trough body. DETAILED DESCRIPTION

[0033] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0034] The present disclosure provides a telescopic guide structure for a cutting saw, see Figures 1 to 4The telescopic guide structure includes a rear support 1 and a front support 2 which are arranged opposite to each other, a telescopic rod 3, and two arms 4. The rear support 1 and the front support 2 are connected by the telescopic rod 3, the front support 2 is connected to the saw blade mechanism 5, one of the two arms 4 is rotatably connected to the rear support 1, and the other of the two arms 4 is rotatably connected to the front support 2. The ends of the two arms 4 which are close to each other are rotatably connected so that the saw blade mechanism 5 moves horizontally along a straight line.

[0035] In the disclosed embodiment, the telescopic guide structure is composed of a rear support 1, a front support 2, a telescopic rod 3 and two arms 4. The rear support 1 and the front support 2 are connected by a telescopic rod 3. One of the two arms 4 is rotatably connected to the rear support 1, and the other is connected to the front support 2. The two arms 4 are rotatably connected to each other. The two arms 4 and the telescopic rod 3 form a triangular structure. By adjusting the length of the telescopic rod 3, the saw blade mechanism 5 is driven to move horizontally along a straight line. During the linear motion of the saw blade mechanism 5, the two arms 4 and the telescopic rod 3 always maintain a triangular structure. The telescopic guide structure has good stability, thereby improving the smoothness of the movement of the saw blade mechanism 5.

[0036] Compared with the existing pull rod guide structure, the telescopic guide structure forms a triangular structure through the telescopic rod and two support arms. The telescopic guide structure has good stability. The linear motion of the cutting saw blade is achieved through the extension and retraction of the telescopic rod, so that the miter saw does not need to pay attention to whether there are objects at the rear end of the machine during use, so as to avoid affecting the linear motion of the saw blade, thereby reducing the use space of the miter saw and allowing the miter saw to be used against a wall.

[0037] Optionally, the two supporting arms 4 may include a first supporting arm and a second supporting arm, and the sizes of the first supporting arm and the second supporting arm may be the same or different.

[0038] It can be understood that when the first arm and the second arm have the same size, the first arm, the second arm and the telescopic rod 3 form an isosceles triangle structure; when the first arm and the second arm have different sizes, the first arm, the second arm and the telescopic rod 3 form a common triangle structure. The first arm can be rotatably connected to one of the rear support 1 and the front support 2, the second arm can be rotatably connected to the other of the rear support 1 and the front support 2, and the first arm is rotatably connected to the second arm.

[0039] In one example, the first arm is rotatably connected to the rear support 1 , and the second arm is rotatably connected to the front support 2 .

[0040] In one embodiment of the present disclosure, see Figure 2The telescopic rod 3 includes a plurality of slots 6 sequentially sleeved along the axis direction of the rear support 1 and the front support 2, and two adjacent slots 6 are movably connected by a sliding mechanism 7. In this way, the telescopic rod 3 is composed of a plurality of slots 6 sleeved in sequence and a sliding mechanism 7 arranged between two adjacent slots 6. The position of the sleeved slots 6 is adjusted by the sliding mechanism 7 to adjust the size of the telescopic rod 3 and realize the linear motion of the saw blade.

[0041] Optionally, the slot body 6 at one end is connected to one of the rear support 1 and the front support 2, and the slot body 6 at the other end is connected to the other of the rear support 1 and the front support 2. In this way, the two ends of the telescopic rod 3 are respectively fixedly connected to the rear support 1 or the front support 2 on the same side, so that the telescopic rod 3 can be extended and retracted internally, driving the front support 2 to move linearly, thereby realizing the linear movement of the saw blade.

[0042] In one embodiment of the present disclosure, see Figure 2 The tank body 6 has a bottom wall and three side walls arranged around the bottom wall. In this way, the tank body 6 is a box structure with one end open, which is convenient for multiple tank bodies 6 to be arranged in sequence.

[0043] Alternatively, see Figure 2 The openings of the plurality of slots 6 face the same direction, and the sizes of the plurality of slots 6 gradually decrease along the direction in which the openings face. In this way, the plurality of slots 6 can be sleeved in sequence, so that the size of the telescopic rod 3 can be adjusted by the sliding mechanism 7.

[0044] It can be understood that the openings of the plurality of slots 6 can be oriented toward any one of the rear support 1 and the front support 2, that is, the openings of the plurality of slots 6 can be oriented toward the rear support 1 or the front support 2. Therefore, the plurality of slots 6 can be sequentially arranged from large to small between the rear support 1 and the front support 2, or can be sequentially arranged from small to large between the rear support 1 and the front support 2. The slot 6 with the largest size can be connected to the rear support 1 or the front support 2, and correspondingly, the slot 6 with the smallest size can be connected to the front support 2 or the rear support 1. When the slot 6 with the largest size is connected to the rear support 1 and the slot 6 with the smallest size is connected to the front support 2, the plurality of slots 6 are sequentially arranged from small to large between the rear support 1 and the front support 2; when the slot 6 with the largest size is connected to the front support 2 and the slot 6 with the smallest size is connected to the front support 2, the plurality of slots 6 are sequentially arranged from large to small between the rear support 1 and the front support 2.

[0045] In one example, the openings of the multiple slots 6 face the front support 2, and the multiple slots 6 are arranged in sequence from small to large between the rear support 1 and the front support 2, the largest slot 6 is connected to the rear support 1, and the smallest slot 6 is connected to the front support 2.

[0046] In one embodiment of the present disclosure, see Figure 2 The larger of any two adjacent slots 6 is defined as the first slot, and the smaller of any two adjacent slots 6 is defined as the second slot; the second slot is movably connected to the first slot via the sliding mechanism 7. In this way, the second slot is sleeved in the first slot via the sliding mechanism 7, and the positional relationship of the two adjacent slots 6 is adjusted via the sliding mechanism 7, thereby adjusting the size of the telescopic rod 3 and guiding the saw blade to move linearly.

[0047] In one embodiment of the present disclosure, see Figure 2 The sliding mechanism 7 includes: a positioning sliding guide rail 8, which is arranged on the inner side wall of the first groove body, and the positioning sliding guide rail 8 is arranged along the axis direction of the rear support 1 and the front support 2; a positioning wheel 9, which is rotatably arranged on the outer side wall of the second groove body, and the positioning wheel 9 can reciprocate on the positioning sliding guide rail 8. In this way, the sliding mechanism 7 makes the positioning wheel 9 reciprocate on the positioning sliding guide rail 8 through the cooperation between the positioning sliding guide rail 8 and the positioning wheel 9, so as to realize the linear motion of the saw blade mechanism 5.

[0048] Optionally, the cooperation between the positioning sliding guide rail 8 and the positioning wheel 9 is simple and efficient, so that the movement of the second slot body in the first slot body is simple and stable.

[0049] It can be understood that the positioning sliding guide rail 8 can be arranged on an inner wall of the first trough body, or on two opposite inner walls of the first trough body. Correspondingly, the positioning wheel 9 can be arranged on an outer wall of the second trough body, or on two outer walls of the second trough body. The positioning sliding guide rail 8 and the positioning wheel 9 cooperate with each other to enable the second trough body to move within the first trough body.

[0050] Optionally, the upper and lower ends of the positioning sliding guide rail 8 are respectively provided with slots for the positioning wheel 9 to move, and correspondingly, the upper and lower parts of the outer side wall of the second slot body are respectively provided with positioning wheels 9 for rotation, and the positioning sliding guide rail 8 is located between the positioning wheels 9 on the second slot body, and the upper and lower positioning wheels 9 respectively move in the slots at the upper and lower ends. In this way, through the cooperation of one set of positioning sliding guide rails 8 and two sets of positioning wheels 9, the second slot body always remains horizontal during the movement in the first slot body, so as to realize the stable extension and retraction of the telescopic rod 3 and avoid the failure of the telescopic rod 3.

[0051] Optionally, the positioning wheels 9 can be grouped individually or in groups of multiple.

[0052] In one example, the number of the slot bodies 6 is two, that is, the telescopic rod 3 includes two slot bodies 6 and a sliding mechanism 7, the first slot body with a larger size among the two slot bodies 6 is connected to the rear support 1, the second slot body with a smaller size among the two slot bodies 6 is connected to the front support 2, the first slot body and the second slot body are movably connected through the sliding mechanism 7, the positioning sliding guide rails 8 are arranged on the inner walls on both sides of the first slot body, the positioning wheels 9 are arranged on the outer walls on both sides of the second slot body, and the positioning wheels 9 are arranged on the upper and lower parts of the outer side wall of the second slot body, and the positioning wheels 9 are arranged in groups of two.

[0053] In another example, the number of the slot bodies 6 is more than two, that is, the telescopic rod 3 includes at least three slot bodies 6 and at least two sliding mechanisms 7, the openings of the more than two slot bodies 6 face the rear support 1, the sizes of the more than two slot bodies 6 gradually decrease along the direction of the openings, and a sliding mechanism 7 is passed between two adjacent slot bodies 6. The number of sliding mechanisms 7 is one less than the number of slot bodies 6. The largest slot body 6 among the more than two slot bodies 6 is connected to the rear support 1, and the smallest slot body 6 among the more than two slot bodies 6 is connected to the front support 2, and at least one slot body 6 is sleeved between the largest slot body 6 and the smallest slot body 6 through the sliding mechanism 7.

[0054] In one embodiment of the present disclosure, see Figure 2 , the two ends of the positioning sliding guide rail 8 are respectively provided with limit posts 10. In this way, the moving range of the positioning wheel 9 on the positioning sliding guide rail 8 can be limited, thereby limiting the linear motion stroke of the saw blade mechanism 5.

[0055] Optionally, limiting columns 10 are provided at both ends of the upper slot and the lower slot of the positioning sliding guide rail 8 to limit the positioning wheels 9 above and below the positioning sliding guide rail 8, thereby improving the limiting effect.

[0056] In one embodiment of the present disclosure, see Figures 1 to 4 The positioning sliding guide rail 8 is connected to the first slot body by screws. In this way, the positioning sliding guide rail 8 can be quickly disassembled and assembled.

[0057] Optionally, the screw may be located in the middle of the positioning sliding guide rail 8 , or may be located at both ends of the positioning sliding guide rail 8 .

[0058] In one embodiment of the present disclosure, see Figure 1 , Figure 2 and Figure 4 The telescopic guide structure also includes a workbench 11, a rear support 1 is arranged at the rear end of the workbench 11, and a front support 2 is arranged above the workbench 11. In this way, the telescopic guide structure is supported by the workbench 11, so that the saw blade mechanism 5 can move smoothly along a straight line.

[0059] In one embodiment of the present disclosure, see Figure 1 , Figure 2 and Figure 4 The telescopic guide structure also includes a limiting groove 12, which is arranged at one end of the workbench 11 away from the rear support 1, and is located below the saw blade mechanism 4, and the saw blade mechanism 4 can reciprocate in the limiting groove 12. In this way, the saw blade mechanism 4 is limited by the guide groove 12, the movement range of the saw blade mechanism 4 is limited, and the saw blade mechanism 4 is prevented from lateral movement.

[0060] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A telescopic guide structure for a cutting saw, characterized in that: The telescopic guide structure comprises a rear support (1) and a front support (2) arranged opposite to each other, a telescopic rod (3), and two supporting arms (4). The rear support (1) is connected to the front support (2) via the telescopic rod (3); the front support (2) is connected to the saw blade mechanism (5); one of the two support arms (4) is rotatably connected to the rear support (1); the other of the two support arms (4) is rotatably connected to the front support (2); and the ends of the two support arms (4) that are close to each other are rotatably connected, so that the saw blade mechanism (5) moves horizontally along a straight line.

2. The telescopic guide structure of a cutting saw according to claim 1, characterized in that: The telescopic rod (3) comprises a plurality of slot bodies (6) which are sequentially sleeved along the axis direction of the rear support (1) and the front support (2), and two adjacent slot bodies (6) are movably connected via a sliding mechanism (7); The trough body (6) located at one end is connected to one of the rear support (1) and the front support (2), and the trough body (6) located at the other end is connected to the other of the rear support (1) and the front support (2).

3. The telescopic guide structure of a cutting saw according to claim 2, characterized in that: The trough body (6) has a bottom wall and three side walls arranged around the bottom wall, and the openings of the plurality of trough bodies (6) face the same direction; The sizes of the plurality of slots (6) gradually decrease along the direction of the opening.

4. The telescopic guide structure of a cutting saw according to claim 3, characterized in that: The larger of any two adjacent trough bodies (6) is defined as a first trough body, and the smaller of any two adjacent trough bodies (6) is defined as a second trough body; The second trough body is movably connected to the first trough body via the sliding mechanism (7).

5. The telescopic guide structure of a cutting saw according to claim 4, characterized in that: The sliding mechanism (7) comprises: A positioning sliding guide rail (8) is arranged on the inner side wall of the first groove body, and the positioning sliding guide rail (8) is arranged along the axial direction of the rear support (1) and the front support (2); A positioning wheel (9) is rotatably disposed on the outer side wall of the second groove body, and the positioning wheel (9) can reciprocate on the positioning sliding guide rail (8).

6. The telescopic guide structure of a cutting saw according to claim 5, characterized in that: Limiting columns (10) are respectively arranged at both ends of the positioning sliding guide rail (8).

7. The telescopic guide structure of a cutting saw according to claim 5, characterized in that: The positioning sliding guide rail (8) is connected to the first slot body via screws.

8. The telescopic guide structure of a cutting saw according to claim 1, characterized in that: The telescopic guide structure further comprises a workbench (11), The rear support (1) is arranged at the rear end of the workbench (11), and the front support (2) is arranged above the workbench (11).

9. The telescopic guide structure of a cutting saw according to claim 8, characterized in that: The telescopic guide structure further comprises a limiting groove (12), The limiting groove (12) is arranged at one end of the workbench (11) away from the rear support (1), and the limiting groove (12) is located below the saw blade mechanism (5), and the saw blade mechanism (5) can reciprocate in the limiting groove (12).

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