Mechanical steel saw

Abstract

The utility model discloses a mechanical hacksaw, which relates to the technical field of mechanical hacksaws, and comprises a hacksaw body, the upper end of the hacksaw body is rotatably sleeved with a rotating pipe, the rod wall of the rotating pipe is fixedly sleeved with a plurality of groups of connecting components which are symmetrically arranged in a surrounding manner, and each group of connecting components comprises two connecting plates which are symmetrically arranged; positioning rods are fixedly arranged on the outer walls of the connecting plates, the outer sides of every two adjacent positioning rods are jointly and slidably sleeved with a saw blade, threaded holes are formed in the rod walls of the positioning rods, threaded positioning pins are arranged in the positioning holes in a threaded and penetrating mode, and the upper end of the hacksaw body is fixedly sleeved with a fixing block. According to the hacksaw body, the rotating pipe, the connecting plate, the positioning rod, the saw blades, the threaded positioning pin, the fixing block and the insertion positioning mechanism, the multiple saw blades and the hacksaw can be integrally arranged, the space occupied by additionally carrying the saw blades is reduced, meanwhile, the multiple saw blades can be rapidly rotated and shifted, and the use convenience of the hacksaw is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical hacksaws, in particular to a mechanical hacksaw. Background Art

[0002] A mechanical hacksaw is a tool that is used to cut materials manually or electrically, and is widely used in machinery manufacturing and metal processing industries.

[0003] After searching, the patent number CN205271016U discloses a mechanical hacksaw, which has a cooling device filled with coolant above the saw blade, which can cool the environment around the saw blade, thereby cooling the saw blade. At the same time, a groove is provided on one side of the cooling device, so that the lubricating oil coming out of the lubrication device can pass through the groove and the oil dripping hole in the groove and evenly drip onto the saw blade, thereby ensuring a long service life of the saw blade.

[0004] However, the hacksaw is only provided with a single saw blade when in use. During the continuous use of the hacksaw, the operator needs to set up additional space for lacing multiple saw blades and frequently replace them during use, which reduces the use effect of the hacksaw. Utility Model Content

[0005] In view of the above problems existing in the existing mechanical hacksaw, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a mechanical hacksaw, which solves the problem that when the hacksaw is used for a long time, the operator needs to set up additional space for carrying the saw blade, which reduces the convenience of using the hacksaw.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A mechanical hacksaw comprises a hacksaw body, wherein the upper end of the hacksaw body is rotatably sleeved with a rotating tube, a rod wall of the rotating tube is fixedly sleeved with a plurality of groups of connecting components symmetrically arranged around, each group of the connecting components comprises two symmetrically arranged connecting plates, a positioning rod is fixedly provided on the outer wall of the connecting plate, a saw blade is slidably sleeved on the outer sides of two adjacent positioning rods, a threaded hole is opened on the rod wall of the positioning rod, and a threaded positioning pin is threaded through the inner thread of the positioning hole;

[0009] A fixing block is provided on the upper fixed sleeve of the hacksaw body, and a plug-in positioning mechanism for limiting the position of the rotating tube is provided between the fixing block and the rotating tube.

[0010] Preferably, the plug-in positioning mechanism includes two symmetrically arranged plug rods, which are slidably arranged inside the fixed block, and the tube wall of the rotating tube is provided with a plurality of positioning grooves which are symmetrically arranged around the tube, and the ends of the plug rods are inserted into the positioning grooves. The two plug rods are fixed with a pull ring at one end away from the rotating tube, and the pull ring is slidably sleeved on the outer upper end of the hacksaw body. The rod wall of the positioning rod is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the fixed block and the pull ring.

[0011] Preferably, the upper end of the hacksaw body is in the shape of a round rod.

[0012] Preferably, a sliding rod is slidably provided on the lower end of the side of the hacksaw body, and a positioning plate is fixedly sleeved on the end of the sliding rod. The positioning plate is sleeved on the outer side of the saw blade, and a second spring is sleeved on the rod wall of the sliding rod. The two ends of the second spring are fixedly connected to the hacksaw body and the sliding rod respectively.

[0013] Furthermore, the side wall of the positioning plate is provided with a limiting groove for positioning the saw blade.

[0014] Preferably, a positioning hole is provided inside the saw blade to match the positioning rod.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model is provided with a hacksaw body, a rotating tube, a connecting plate, a positioning rod, a saw blade, a threaded positioning pin, a fixing block and a plug-in positioning mechanism, so that a plurality of saw blades can be integrated with the hacksaw, thereby reducing the space occupied by the additional saw blades. At the same time, a plurality of saw blades can be quickly rotated and replaced, thereby improving the convenience of using the hacksaw.

[0017] 2. The utility model can quickly disassemble and replace the saw blade by means of the positioning rod, threaded positioning pin, slide rod, second spring and positioning plate. At the same time, the saw blade can be used for auxiliary positioning, thereby improving the stability of the hacksaw during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 For the utility model Figure 1A magnified schematic diagram of part A;

[0021] Figure 3 For the utility model Figure 1 An enlarged schematic diagram of part B.

[0022] Description of reference numerals:

[0023] 1. Hacksaw body; 2. Rotating tube; 3. Connecting plate; 4. Positioning rod; 5. Saw blade; 6. Threaded positioning pin; 7. Fixing block; 8. Insert rod; 9. Pull ring; 10. First spring; 11. Sliding rod; 12. Positioning plate; 13. Second spring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The embodiment of the utility model discloses a mechanical hacksaw.

[0026] The utility model provides Figure 1-3 The mechanical hacksaw shown includes a hacksaw body 1, a rotating tube 2 is rotatably sleeved on the upper end of the hacksaw body 1, the upper end of the hacksaw body 1 is arranged in a round rod shape, and the rod wall of the rotating tube 2 is fixedly sleeved with multiple groups of connecting components that are symmetrically arranged in a surrounding manner. Each group of connecting components includes two symmetrically arranged connecting plates 3, and the outer wall of the connecting plate 3 is fixedly provided with a positioning rod 4. The outer sides of the two adjacent positioning rods 4 are jointly slidably sleeved with a saw blade 5. The interior of the saw blade 5 is provided with a positioning hole that cooperates with the positioning rod 4. The rod wall of the positioning rod 4 is provided with a threaded hole, and a threaded positioning pin 6 is threaded through the inner thread of the positioning hole.

[0027] When the hacksaw is in use, multiple saw blades 5 are integrally arranged with the hacksaw body 1 through the connecting plate 3, the positioning rod 4 and the threaded positioning pin 6. After the lower saw blade 5 is worn out after long-term use, the position of the multiple saw blades 5 can be replaced through the rotation support of the rotating tube 2. There is no need to set up an additional space for carrying auxiliary saw blades. At the same time, the multiple saw blades 5 can be quickly replaced and used, which improves the use effect of the hacksaw. At the same time, the positioning rod 4 and the positioning hole are plugged in and matched, so that the saw blades can be quickly disassembled and assembled, further improving the convenience of using the hacksaw.

[0028] In order to fix the position of the rotating tube 2 after the multiple saw blades 5 are replaced by the rotating tube 2, as shown in FIG. Figure 1-2As shown, the upper end of the hacksaw body 1 is fixedly sleeved with a fixed block 7, and a plug-in positioning mechanism for limiting the position of the rotating tube 2 is provided between the fixed block 7 and the rotating tube 2. The plug-in positioning mechanism includes two symmetrically arranged plug rods 8, and the plug rods 8 are slidably arranged inside the fixed block 7. The tube wall of the rotating tube 2 is provided with a plurality of positioning grooves that are symmetrically arranged around the tube wall. The ends of the plug rods 8 are inserted into the positioning grooves, and the two plug rods 8 are fixedly provided with a pull ring 9 at one end away from the rotating tube 2. The pull ring 9 is slidably sleeved on the outer upper end of the hacksaw body 1, and the rod wall of the positioning rod 8 is sleeved with a first spring 10. The two ends of the first spring 10 are fixedly connected to the fixed block 7 and the pull ring 9 respectively.

[0029] Before repositioning multiple saw blades 5, the pull ring 9 can be pulled horizontally, so that the pull ring 9 drives the two insertion rods 8 to move horizontally. At this time, the insertion rod 8 stretches the first spring 10 under the support of the fixed block 7 and is pulled out from the positioning groove on the side of the rotating tube 2. Then the rotating tube 2 can be rotated, so that the rotating tube 2 drives multiple saw blades 5 to be repositioned through multiple connecting plates 3. When the position of the saw blade 5 is changed, the pull ring 9 is released, and the elastic force of the first spring 10 is restored, so that the insertion rod 8 can rebound and be inserted into the positioning groove, thereby fixing the position of the rotating tube 2, thereby completing the position determination of the saw blade 8 after repositioning.

[0030] In order to assist the positioning of the saw blade 6 when the saw blade 5 is in use, Figure 3 As shown, a slide rod 11 is slidably provided on the lower end of the side of the hacksaw body 1, and a positioning plate 12 is fixedly sleeved on the end of the slide rod 11. The positioning plate 12 is sleeved on the outside of the saw blade 5, and the side wall of the positioning plate 12 is provided with a limiting groove for fitting the saw blade 5. The rod wall of the slide rod 11 is sleeved with a second spring 13, and the two ends of the second spring 13 are fixedly connected to the hacksaw body 1 and the slide rod 11 respectively.

[0031] Before the saw blade 5 is changed, the slide bar 11 can be pulled horizontally so that the slide bar 11 drives the positioning plate 12 to move horizontally. When the position of the saw blade 5 is determined, the slide bar 11 is released so that the slide bar 11 drives the positioning plate 12 to cover the outside of the saw blade 5 under the elastic recovery of the second spring 13. At this time, the positioning plate 12 wraps and limits the saw blade 5 to avoid bending of the saw blade 5 during operation as much as possible, thereby ensuring the stability of the hacksaw.

[0032] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mechanical hacksaw comprising a hacksaw body (1), characterized in that: The upper end of the hacksaw body (1) is rotatably sleeved with a rotating tube (2), and the rod wall of the rotating tube (2) is fixedly sleeved with multiple groups of connecting components arranged in a symmetrical manner. Each group of connecting components includes two symmetrically arranged connecting plates (3). Positioning rods (4) are fixedly provided on the outer walls of the connecting plates (3). Saw blades (5) are slidably sleeved on the outer sides of two adjacent positioning rods (4). A threaded hole is opened on the rod wall of the positioning rod (4), and a threaded positioning pin (6) is threadedly penetrated through the inner thread of the positioning hole. The upper end fixing sleeve of the hacksaw body (1) is provided with a fixing block (7), and a plug-in positioning mechanism for limiting the position of the rotating tube (2) is provided between the fixing block (7) and the rotating tube (2).

2. The mechanical hacksaw according to claim 1, characterized in that The plug-in positioning mechanism includes two symmetrically arranged plug rods (8), the plug rods (8) are slidably arranged inside the fixed block (7), the tube wall of the rotating tube (2) is provided with a plurality of positioning grooves arranged in a circumferential and symmetrical manner, the ends of the plug rods (8) are inserted into the positioning grooves, and the ends of the two plug rods (8) away from the rotating tube (2) are fixed with a pull ring (9), and the pull ring (9) is slidably sleeved on the outer upper end of the hacksaw body (1), and the rod wall of the positioning rod (8) is sleeved with a first spring (10), and the two ends of the first spring (10) are respectively fixedly connected to the fixed block (7) and the pull ring (9).

3. The mechanical hacksaw according to claim 1, characterized in that The upper end of the hacksaw body (1) is arranged in a round rod shape.

4. The mechanical hacksaw according to claim 1, characterized in that A slide rod (11) is slidably provided at the lower end of the side of the hacksaw body (1), and a positioning plate (12) is fixedly sleeved at the end of the slide rod (11). The positioning plate (12) is sleeved on the outer side of the saw blade (5). A second spring (13) is sleeved on the rod wall of the slide rod (11), and the two ends of the second spring (13) are fixedly connected to the hacksaw body (1) and the slide rod (11) respectively.

5. The mechanical hacksaw according to claim 4, characterized in that The side wall of the positioning plate (12) is provided with a limiting groove for positioning the saw blade (5).

6. The mechanical hacksaw according to claim 1, characterized in that A positioning hole is provided inside the saw blade (5) to match the positioning rod (4).

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