Double-end cutting saw stable in limiting

Abstract

The utility model relates to the technical field of cutting saws, and discloses a stable-limiting double-end cutting saw which comprises a cutting frame, a cutting saw body is arranged on the top face of the cutting frame, a supporting plate is fixedly connected to the inner side of the cutting frame, and according to the stable-limiting double-end cutting saw, when a bolt is still screwed down after a positioning block is attached to the outer wall of a pipe, the positioning block is fixed to the outer wall of the pipe. When the rotating plate rotates, the supporting rod is shrunk into the linkage block, the distance between the positioning block and the linkage block is gradually shortened, and therefore the trapezoid block is gradually inserted into the linkage block, and the inclined face of the trapezoid block abuts against the bottom of the rotating plate to enable the rotating plate to rotate with the center line of the shaft rod as the axis. And when a rotating plate rotates, a second spring can be tensioned, and a clamping plate can be driven to be inserted into a limiting groove formed in the surface of a push rod, so that the push rod cannot continue to move downwards, the bolt cannot continue to be screwed, and even if a worker knows that the pipe is positioned and compacted and some pipes with thin pipe walls cannot be positioned too tightly, deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting saws, in particular to a limited and stable double-end cutting saw. Background Art

[0002] A cutting saw is a tool used to cut various materials, such as metal, wood, and plastic. It uses a high-speed rotating saw blade to cut materials. Different types of saw blades can be selected according to different materials and cutting requirements. Cutting saws are generally divided into two types: manual and electric. Electric cutting saws are more efficient and convenient, but manual cutting saws still have certain advantages in some special cases.

[0003] When cutting pipes, most existing cutting saws fix the surface of the pipe and then cut the pipe. However, only one end of the pipe is fixed. The vibration during cutting can easily cause the pipe to tilt, resulting in an offset between the cutting saw and the pipe, making it impossible to cut stably. Utility Model Content

[0004] The purpose of the utility model is to provide a double-end cutting saw with limited stability to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a double-end cutting saw with limited stability, comprising a cutting frame, a cutting saw is arranged on the top surface of the cutting frame, a support plate is fixedly connected to the inner side of the cutting frame, a positioning part is arranged on the inner side of the cutting frame, and the positioning part comprises:

[0006] A horizontal column, the horizontal column is fixedly connected to the inner side of the cutting frame, and one end of the horizontal column away from the cutting frame is fixedly connected to a positioning plate, and the inner wall of the positioning plate is slidably connected to a linkage block. When the bolt is still tightened after the positioning block has been in contact with the outer wall of the pipe, the support rod will be retracted into the linkage block, and the bottom end of the linkage block passes through and is slidably connected to a support rod, and the bottom surface of the support rod is fixedly connected to a positioning block. The lifting block pushes the push rod to make the linkage block slide on the inner side of the positioning plate, so that the linkage block pushes the positioning block to position the penetration through the support rod, and a spring is fixedly connected between the positioning block and the linkage block;

[0007] A trapezoidal block, the bottom surface of the trapezoidal block is fixedly connected to the top surface of the positioning block, the inner side of the linkage block is fixedly connected with an axle rod, the distance between the positioning block and the linkage block is gradually shortened, so that the trapezoidal block is gradually inserted into the interior of the linkage block, the axle rod passes through and is rotatably connected with a rotating plate, the left side of the rotating plate is fixedly connected with a clamping plate, the top surface of the rotating plate is fixedly connected with a lever, and a second spring is fixedly connected between the rotating plate and the inner side of the linkage block.

[0008] Preferably, there are two groups of positioning plates, and a connecting column is fixedly connected between the two groups of positioning plates. A bolt passes through the top surface of the connecting column and is rotatably connected. The bolt passes through and is threadably connected to a control plate. When the bolt is rotated, the control plate will be driven to slowly descend.

[0009] Preferably, a spring three is fixedly connected to the bottom surface of the control plate, and one end of the spring three away from the control plate is fixedly connected to the top surface of the connecting column. The springs three at both ends can enable both ends of the control plate to move toward the direction of the connecting column, so that the control plate drives the lifting block to slide downward along the limit block.

[0010] Preferably, the top surface of the positioning plate is fixedly connected to a limiting block, both ends of the control plate are fixedly connected to lifting blocks, and the lifting blocks penetrate the limiting blocks and are slidably connected.

[0011] Preferably, push rods are fixedly connected to the bottom of the lifting blocks fixed at both ends of the control board, and the push rods penetrate the positioning plate and are slidably connected, and the bottom surface of the push rods is fixedly connected to the top surface of the linkage block.

[0012] Preferably, limit grooves are provided on both sides of the push rod. When the rotating plate rotates, spring 2 will be tightened and the clamping plate will be driven to insert into the limit groove provided on the surface of the push rod, so that the push rod cannot move downward further, and the bolt cannot be tightened further.

[0013] Preferably, there are three groups of linkage blocks, and an arc rod passes through every two groups of linkage blocks. The two ends of the pipe are positioned by two groups of symmetrical positioning plates so that a part of the pipe is located between the positioning plates, which can prevent one end of the pipe from tilting up when the other end is cut by the cutting saw. The three groups of linkage blocks and arc rods enable the linkage blocks to keep the axis of the pipe parallel to the cutting frame when the pipe is positioned. At the same time, an arc spring is fixedly connected between every two groups of linkage blocks.

[0014] Compared with the prior art, the utility model provides a double-end cutting saw with limited stability, which has the following beneficial effects:

[0015] 1. The double-ended cutting saw with stable limit will shrink the support rod into the linkage block when the bolt is still being tightened after the positioning block has been fitted with the outer wall of the pipe, so that the distance between the positioning block and the linkage block is gradually shortened, so that the trapezoidal block is gradually inserted into the interior of the linkage block, and the inclined surface of the trapezoidal block will contact the bottom of the rotating plate to make the rotating plate rotate with the center line of the shaft as the axis, and when the rotating plate rotates, the spring 2 will be tightened and the clamping plate will be driven to insert into the limiting groove provided on the surface of the push rod, so that the push rod cannot continue to move downward, and the bolt cannot continue to be tightened, even if the staff knows that the pipe has been positioned tightly and some pipes with thin walls will not be positioned too tightly and deformed.

[0016] 2. The limited and stable double-end cutting saw positions the two ends of the pipe by two sets of symmetrical positioning plates, so that a part of the pipe is located between the positioning plates, which can prevent one end of the pipe from tilting when the other end is cut by the cutting saw. In addition, through three sets of linkage blocks and arc rods, the linkage blocks can keep the axis of the pipe parallel to the cutting frame when the pipe is positioned, so that the cutting saw can cut the pipe stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the enlarged structure of the internal positioning plate of the utility model;

[0020] Figure 4 It is a partial cross-sectional enlarged structural schematic diagram of the linkage block of the utility model.

[0021] In the figure: 1. cutting frame; 2. positioning part; 21. horizontal column; 22. positioning plate; 23. connecting column; 24. bolt; 25. control board; 26. spring three; 27. limit block; 28. lifting block; 29. ​​push rod; 210. linkage block; 211. support rod; 212. positioning block; 213. spring one; 214. trapezoidal block; 215. shaft rod; 216. rotating plate; 217. clamping plate; 218. lever; 219. limit slot; 220. spring two; 221. arc rod; 222. arc spring; 3. cutting saw; 4. support plate. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a double-end cutting saw with limited stability, including a cutting frame 1, a cutting saw 3 is arranged on the top surface of the cutting frame 1, a support plate 4 is fixedly connected to the inner side of the cutting frame 1, and a positioning part 2 is arranged on the inner side of the cutting frame 1, and the positioning part 2 includes: a horizontal column 21, a positioning plate 22, a connecting column 23, a bolt 24, a control board 25, a spring three 26, a limiting block 27, a lifting block 28, a push rod 29, a linkage block 210, a support rod 211, a positioning block 212, a spring one 213, a trapezoidal block 214, a shaft rod 215, a rotating plate 216, a clamping plate 217, a lever 218, a limiting groove 219, a spring two 220, an arc rod 221, and an arc spring 222.

[0023] The cross column 21 is fixedly connected to the inner side of the cutting frame 1, and the end of the cross column 21 away from the cutting frame 1 is fixedly connected to the positioning plate 22, and the inner wall of the positioning plate 22 is slidably connected to the linkage block 210. When the bolt 24 is still tightened after the positioning block 212 has been in contact with the outer wall of the pipe, the support rod 211 will be retracted into the linkage block 210, so that the distance between the positioning block 212 and the linkage block 210 is gradually shortened, and the bottom end of the linkage block 210 is penetrated and slidably connected with the support rod 211, and the bottom surface of the support rod 211 is fixedly connected with the positioning block 212. The lifting block 28 will push the push rod 29 to make the linkage block 210 slide on the inner side of the positioning plate 22, so that the linkage block 210 pushes the positioning block 212 through the support rod 211 to position the penetration, and the positioning block 21 A spring 1 213 is fixedly connected between the trapezoidal block 214 and the linkage block 210, the bottom surface of the trapezoidal block 214 is fixedly connected to the top surface of the positioning block 212, the inner side of the linkage block 210 is fixedly connected to the shaft rod 215, the distance between the positioning block 212 and the linkage block 210 is gradually shortened, so that the trapezoidal block 214 is gradually inserted into the linkage block 210, and the inclined surface of the trapezoidal block 214 will contact the bottom of the rotating plate 216 to make the rotating plate 216 rotate around the center line of the shaft rod 215, the shaft rod 215 penetrates and is rotatably connected to the rotating plate 216, the left side of the rotating plate 216 is fixedly connected to the clamping plate 217, the top surface of the rotating plate 216 is fixedly connected to the lever 218, and a spring 220 is fixedly connected between the rotating plate 216 and the inner side of the linkage block 210. There are two groups of positioning disks 22, and a connecting column 23 is fixedly connected between the two groups of positioning disks 22. The top surface of the connecting column 23 is penetrated and rotatably connected with a bolt 24, and the bolt 24 is penetrated and threadedly connected with a control board 25. When cutting the pipe, the pipe is inserted into the positioning disk 22 through the top of the support plate 4. After the length of the pipe cutting is determined to be aligned with the saw blade of the cutting saw 3, the bolt 24 is rotated. When the bolt 24 rotates, it will drive the control board 25 to slowly descend. A spring 3 26 is fixedly connected to the bottom surface of the control board 25. The end of the spring 3 26 away from the control board 25 is fixedly connected to the top surface of the connecting column 23. The springs 3 26 at both ends can make both ends of the control board 25 move toward the direction of the connecting column 23, so that the control board 25 drives the lifting block 28 to slide downward along the limit block 27, and the lifting block 28 will push the push rod 29 to make the linkage block 210 slide inside the positioning disk 22. The top surface of the positioning plate 22 is fixedly connected to the limit block 27, and both ends of the control board 25 are fixedly connected to the lifting blocks 28, which penetrate the limit block 27 and are slidably connected. The bottom of the lifting blocks 28 fixedly connected to the two ends of the control board 25 are fixedly connected to the push rods 29, which penetrate the positioning plate 22 and are slidably connected, and the bottom surface of the push rods 29 is fixedly connected to the top surface of the linkage block 210.The left and right sides of the push rod 29 are provided with limit slots 219, and when the rotating plate 216 rotates, the spring 220 is tightened and the clamping plate 217 is driven to insert into the limit slot 219 provided on the surface of the push rod 29, so that the push rod 29 cannot continue to move downward, and the bolt 24 cannot continue to be screwed. There are three groups of linkage blocks 210, and an arc rod 221 is passed through between every two groups of linkage blocks 210. The two ends of the pipe are positioned by two groups of symmetrical positioning plates 22, so that a part of the pipe is located between the positioning plates 22, which can prevent one end of the pipe from tilting when the other end is cut by the cutting saw 3. In addition, the linkage blocks 210 can keep the axis of the pipe parallel to the cutting frame 1 when the pipe is positioned through the three groups of linkage blocks 210 and the arc rod 221. At the same time, an arc spring 222 is fixedly connected between every two groups of linkage blocks 210.

[0024] Based on the above embodiment, when cutting the pipe, the pipe is inserted into the positioning disk 22 through the top of the support plate 4. After determining that the length of the pipe cutting is aligned with the saw blade of the cutting saw 3, the bolt 24 is turned. The bolt 24 will drive the control plate 25 to slowly descend when rotating. The springs 26 at both ends can make both ends of the control plate 25 move toward the direction of the connecting column 23, so that the control plate 25 drives the lifting block 28 to slide downward along the limit block 27. At the same time, the lifting block 28 will push the push rod 29 to make the linkage block 210 slide on the inner side of the positioning disk 22, so that the linkage block 210 pushes the positioning block 212 through the support rod 211 to position the penetration, and the positioning block 212 has been in contact with the outer wall of the pipe. When the bolt 24 is still being tightened, the support rod 211 will be retracted into the linkage block 210, so that the distance between the positioning block 212 and the linkage block 210 will gradually shorten, so that the trapezoidal block 214 will gradually insert into the interior of the linkage block 210, and the inclined surface of the trapezoidal block 214 will contact the bottom of the rotating plate 216 to rotate the rotating plate 216 with the center line of the shaft 215 as the axis. When the rotating plate 216 rotates, the spring 220 will be tightened and the clamping plate 217 will be driven to insert into the limiting groove 219 provided on the surface of the push rod 29, so that the push rod 29 cannot continue to move downward, and the bolt 24 cannot continue to be screwed, even if the staff knows that the pipe has been positioned tightly and some pipes with thinner walls will not be positioned too tightly and deformed.

[0025] At the same time, two sets of symmetrical positioning plates 22 are used to position the two ends of the pipe, so that a portion of the pipe is located between the positioning plates 22, which can prevent one end of the pipe from tilting when the other end is cut by the cutting saw 3. In addition, through three sets of linkage blocks 210 and arc rods 221, the linkage blocks 210 can keep the axis of the pipe parallel to the cutting frame 1 when the pipe is positioned, so that the cutting saw 3 can stably cut the pipe.

[0026] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A position-limited and stable double-ended cutting saw, comprising a cutting frame (1), characterized in that: The top surface of the cutting frame (1) is provided with a cutting saw (3), the inner side of the cutting frame (1) is fixedly connected with a support plate (4), and the inner side of the cutting frame (1) is provided with a positioning portion (2), and the positioning portion (2) comprises: A transverse column (21), wherein the transverse column (21) is fixedly connected to the inner side of the cutting frame (1), and one end of the transverse column (21) away from the cutting frame (1) is fixedly connected to a positioning plate (22), and the inner wall of the positioning plate (22) is slidably connected to a linkage block (210), and the bottom end of the linkage block (210) passes through and is slidably connected to a support rod (211), and the bottom surface of the support rod (211) is fixedly connected to a positioning block (212), and a spring (213) is fixedly connected between the positioning block (212) and the linkage block (210); A trapezoidal block (214), the bottom surface of the trapezoidal block (214) is fixedly connected to the top surface of the positioning block (212), the inner side of the linkage block (210) is fixedly connected to a shaft rod (215), the shaft rod (215) penetrates and is rotatably connected to a rotating plate (216), the left side of the rotating plate (216) is fixedly connected to a clamping plate (217), the top surface of the rotating plate (216) is fixedly connected to a lever (218), and a second spring (220) is fixedly connected between the rotating plate (216) and the inner side of the linkage block (210).

2. A position-limited and stable double-end cutting saw according to claim 1, characterized in that: The number of the positioning plates (22) is two groups, and a connecting column (23) is fixedly connected between the two groups of positioning plates (22). A bolt (24) penetrates and is rotatably connected to the top surface of the connecting column (23), and the bolt (24) penetrates and is threadedly connected to a control plate (25).

3. A position-limited and stable double-end cutting saw according to claim 2, characterized in that: A spring three (26) is fixedly connected to the bottom surface of the control board (25), and one end of the spring three (26) away from the control board (25) is fixedly connected to the top surface of the connecting column (23).

4. The position-limited and stable double-end cutting saw according to claim 2, characterized in that: The top surface of the positioning plate (22) is fixedly connected to a limiting block (27), and both ends of the control plate (25) are fixedly connected to lifting blocks (28), and the lifting blocks (28) penetrate the limiting blocks (27) and are slidably connected.

5. The position-limited and stable double-end cutting saw according to claim 4, characterized in that: The bottom of the lifting block (28) fixed at both ends of the control plate (25) is fixedly connected with a push rod (29), the push rod (29) passes through the positioning plate (22) and is slidably connected, and the bottom surface of the push rod (29) is fixedly connected to the top surface of the linkage block (210).

6. The position-limited and stable double-end cutting saw according to claim 5, characterized in that: Limiting grooves (219) are provided on both the left and right sides of the push rod (29).

7. The position-limited and stable double-end cutting saw according to claim 1, characterized in that: The linkage blocks (210) are in three groups, and an arc-shaped rod (221) runs through between every two groups of linkage blocks (210), and an arc-shaped spring (222) is fixedly connected between every two groups of linkage blocks (210).

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