Support joint of portable cutting machine

Abstract

The utility model discloses a support joint of a portable cutting machine, which comprises a support assembly comprising a first support body and a second support body, an extension block is arranged at one end of the first frame body, a plurality of adjusting holes are formed in the extension block, a containing cavity allowing the extension block to be inserted in is formed in the face, facing the first frame body, of the second frame body, an elastic piece is arranged in the containing cavity, and positioning holes matched with the adjusting holes are formed in the second frame body. The extension block is used for extending into the containing cavity and extruding the elastic piece to deform, fasteners are detachably connected into the positioning hole and the adjusting hole, and the fasteners are used for adjusting the distance between the first frame body and the second frame body. The bracket joint for the chain saw has the beneficial effects that the technical problems that the bracket joint for the chain saw in the prior art cannot be suitable for saw blade protective covers with different thicknesses due to the fact that the internal space cannot be adjusted, and the working efficiency of the bracket joint is invisibly influenced are solved.

Description

Technical Field

[0001] This utility model relates to the field of chainsaw equipment technology, specifically to a support joint for a portable cutting machine. Background Technology

[0002] A rail cutting machine is a device used to quickly and accurately cut rails according to requirements. It is mainly divided into internal combustion rail cutting machines and electric rail cutting machines. Internal combustion rail cutting machines, powered primarily by gasoline engines, are suitable for use in outdoor or other environments without power. They are characterized by high speed, light weight, and fast cutting speed, but are also expensive, with high costs for spare parts and consumables. Internal combustion rail cutting machines often require support joints, on which saw blade guards are installed to protect the saw blade. However, existing support joints have relatively limited functionality and cannot adjust the internal spacing according to actual conditions, making them unsuitable for saw blade guards of different thicknesses, thus reducing the working efficiency of the support joint. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a support joint for a portable cutting machine. This solves the technical problem that the support joints for chainsaws in the prior art cannot adjust their internal spacing, making them unsuitable for saw blade protective covers of different thicknesses, which inadvertently affects the working efficiency of the support joint.

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

[0005] In a first aspect, this utility model provides a support joint for a portable cutting machine, comprising:

[0006] The bracket assembly includes a first frame and a second frame. One end of the first frame is provided with an extension block, and the extension block has several adjustment holes. The side of the second frame facing the first frame has a receiving cavity for inserting the extension block. An elastic element is provided in the receiving cavity, and the second frame has positioning holes that cooperate with the several adjustment holes. The extension block is used to extend into the receiving cavity and compress the elastic element to cause deformation. Fasteners are detachably connected in the positioning holes and the adjustment holes. The fasteners are used to adjust the distance between the first frame and the second frame.

[0007] In some embodiments, the first frame and the second frame are provided with coaxial hollow cylinders, and the upper end of the second frame is provided with an extension plate.

[0008] In some embodiments, the elastic element includes a spring damper and a baffle; a plurality of the spring dampers are disposed on the inner wall of the receiving cavity, and the baffle is connected to the end of the spring damper.

[0009] In some embodiments, the fastener includes a fastening bolt and a fastening nut; one end of the fastening bolt passes through the positioning hole and the adjustment hole, and is threadedly connected to the fastening nut.

[0010] In some embodiments, the bracket assembly is further provided with a limiting chamber, the limiting chamber including a first chamber and a second chamber; the first frame and the second frame are respectively provided with a first chamber and a second chamber, and the inner walls of the first chamber and the second chamber are provided with reinforcing ribs at an incline.

[0011] In some embodiments, the surfaces of the first chamber and the second chamber are provided with baffles, the area of ​​which is equal to half of the cross-section of the first chamber and the second chamber.

[0012] In some embodiments, each of the two baffles has a limiting end on its opposite side. The limiting end includes a limiting post and a limiting plate. The limiting post is connected to the baffle, and the end of the limiting post is connected to the limiting plate. The two limiting plates are used to limit the saw blade protective cover.

[0013] Compared with the prior art, the present invention provides a support joint for a portable cutting machine, wherein the support assembly is configured as a first frame and a second frame. An extension block is provided on the first frame, and an adjustment hole is provided on the extension block to facilitate the extension block to extend into the receiving cavity inside the second frame. By compressing the elastic element inside the receiving cavity, the elastic element is deformed, causing the adjustment hole on the extension block to coincide with the positioning hole on the second frame. The first frame and the second frame are connected by fasteners. Since there are multiple adjustment holes, the distance between the first frame and the second frame is different after the adjustment hole and the positioning hole are aligned at different positions, thus achieving the goal of adjusting the distance between the first frame and the second frame. Attached Figure Description

[0014] Figure 1 This is a front view of the support joint of the portable cutting machine provided in this embodiment of the utility model;

[0015] Figure 2 This is a rear view of the support joint of the portable cutting machine provided in this embodiment of the present invention;

[0016] Figure 3 This is a side view of the support joint of the portable cutting machine provided in this embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the interior of the receiving cavity of the support joint of the portable cutting machine provided in this embodiment of the utility model;

[0018] Figure 5This is the support joint of the portable cutting machine provided in this embodiment of the utility model. Figure 4 Side view;

[0019] Figure 6 This is a schematic diagram of the assembly of the first and second frames of the support joint of the portable cutting machine provided in this embodiment of the utility model;

[0020] Figure 7 This is a schematic diagram of the limiting end structure of the support joint of the portable cutting machine provided in this embodiment of the utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Bracket assembly; 11. Hollow cylinder; 12. Extension plate; 2. First frame; 21. Extension block; 211. Adjustment hole; 3. Second frame; 31. Receiving cavity; 32. Elastic element; 321. Spring damper; 322. Baffle; 4. Positioning hole; 5. Fastener; 51. Fastening bolt; 52. Fastening nut; 6. Limiting chamber; 61. First chamber; 62. Second chamber; 63. Reinforcing rib; 64. Baffle; 7. Limiting end; 71. Limiting post; 72. Limiting plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] To address the technical problem that existing chainsaw support joints cannot adjust their internal spacing, making them unsuitable for saw blade guards of different thicknesses and thus affecting the working efficiency of the support joint, this invention provides a support joint for a portable cutting machine that allows for adjustment of the spacing of the support assembly, making it suitable for saw blade guards of different thicknesses and enhancing the overall applicability of the support joint.

[0024] It should be noted that the support joint of the portable cutting machine described in this utility model is used in, but not limited to, the field of chainsaws. For ease of explanation, this utility model only uses the application of the support joint of the portable cutting machine in the field of chainsaws as an example. The principle of the support joint of the portable cutting machine in other types of equipment is essentially the same as that in the field of chainsaws, and will not be described in detail here.

[0025] Please see Figure 1 , Figure 1This is a schematic diagram of the structure of the support joint of a portable cutting machine according to an embodiment of the present invention. The support joint of a portable cutting machine includes a support assembly 1, including a first frame 2 and a second frame 3. One end of the first frame 2 is provided with an extension block 21, and the extension block 21 is provided with a plurality of adjustment holes 211. The side of the second frame 3 facing the first frame 2 is provided with a receiving cavity 31 for inserting the extension block 21. An elastic element 32 is provided in the receiving cavity 31, and the second frame 3 is provided with a positioning hole 4 that cooperates with the plurality of adjustment holes 211. The extension block 21 is used to extend into the receiving cavity 31 and compress the elastic element 32 to deform. Fasteners 5 are detachably connected in the positioning hole 4 and the adjustment hole 211. The fasteners 5 are used to adjust the distance between the first frame 2 and the second frame 3.

[0026] In this embodiment, the bracket assembly 1 is configured as a first frame 2 and a second frame 3. An extension block 21 is provided on the first frame 2, and an adjustment hole 211 is provided on the extension block 21 to facilitate the extension block 21 to extend into the receiving cavity 31 inside the second frame 3. By squeezing the elastic member 32 inside the receiving cavity 31, the elastic member 32 is deformed, so that the adjustment hole 211 on the extension block 21 coincides with the positioning hole 4 on the second frame 3. The first frame 2 and the second frame 3 are connected by fasteners 5. Since there are multiple adjustment holes 211, the distance between the first frame 2 and the second frame 3 is different after the adjustment holes 211 at different positions coincide with the positioning hole 4. Therefore, the distance between the first frame 2 and the second frame 3 can be adjusted.

[0027] In one embodiment, please refer to Figure 1 - Figure 4 To facilitate the assembly of the device with the chainsaw, the first frame 2 and the second frame 3 are provided with coaxial hollow cylinders 11, and the upper end of the second frame 3 is provided with an extension plate 12.

[0028] In this embodiment, hollow cylinders 11 are provided on both sides of the first frame 2 and the second frame 3 to facilitate the installation of the device on the chainsaw equipment. Furthermore, by providing an extension plate 12, it is convenient to assemble auxiliary accessories, such as saw blades and other devices.

[0029] In one embodiment, please refer to Figure 2 - Figure 5 To facilitate adjustment of the distance between the first frame 2 and the second frame 3, the elastic element 32 includes a spring damper 321 and a baffle 322; a plurality of spring dampers 321 are disposed on the inner wall of the receiving cavity 31, and the end of the spring damper 321 is connected to the baffle 322; the fastener 5 includes a fastening bolt 51 and a fastening nut 52; one end of the fastening bolt 51 passes through the positioning hole 4 and the adjustment hole 211, and is threadedly connected to the fastening nut 52.

[0030] In this embodiment, a spring damper 321 is provided on the inner wall of the receiving cavity 31, and a baffle 322 is provided at the end of the spring damper 321. When the extension block 21 enters the receiving cavity 31, it will squeeze the baffle 64. The baffle 322 pushes the spring damper 321 to deform, and the adjustment hole 211 on the extension block 21 coincides with the positioning hole 4 on the second frame 3. The more the extension block 21 is inserted, the closer the distance between the first frame 2 and the second frame 3 becomes. One end of the fastening bolt 51 passes through the positioning hole 4 and the adjustment hole 211, and the fastening bolt 51 is limited by the fastening nut 52, so that the first frame 2 and the second frame 3 form a complete support assembly 1.

[0031] In one embodiment, please refer to Figure 1 - Figure 7 To further improve the limiting effect of the first frame 2 and the second frame 3 on the saw blade guard, the support assembly 1 is also provided with a limiting chamber 6, which includes a first chamber 61 and a second chamber 62. The first frame 2 and the second frame 3 are respectively provided with the first chamber 61 and the second chamber 62. The inner walls of the first chamber 61 and the second chamber 62 are provided with reinforcing ribs 63 at an incline. The surfaces of the first chamber 61 and the second chamber 62 are provided with baffles 64. The area of ​​the baffles 64 is equal to half of the cross-section of the first chamber 61 and the second chamber 62. The opposite sides of the two baffles 64 are provided with limiting ends 7. The limiting ends 7 include limiting posts 71 and limiting plates 72. The limiting posts 71 are connected to the baffles 64, and the ends of the limiting posts 71 are connected to the limiting plates 72. The two limiting plates 72 are used to limit the saw blade guard.

[0032] In this embodiment, by setting a first chamber 61 and a second chamber 62 inside the first frame 2 and the second frame 3, it is convenient to set reinforcing ribs 63 on the inner walls of the first chamber 61 and the second chamber 62 to enhance the sturdiness of the first frame 2 and the second frame 3. Secondly, a baffle 64 is set on the front of the first chamber 61 and the second chamber 62, and a limiting post 71 is set on the baffle 64. A limiting plate 72 is set at the end of the limiting post 71. After the distance between the first frame 2 and the second frame 3 is adjusted, the limiting plate 72 can effectively clamp the saw blade guard, thereby ensuring the stability of the chainsaw guard and avoiding displacement during use.

[0033] To better understand this utility model, the following is combined with... Figures 1 to 7The technical solution of this utility model is described in detail as follows: When it is necessary to adjust the distance between the first frame 2 and the second frame 3, the extension block 21 on the first frame 2 is pushed to move towards the receiving cavity 31 on the second frame 3, causing the extension block 21 to press against the baffle 322, which in turn causes the baffle 322 to deform the spring damper 321. Since multiple adjustment holes 211 are equidistantly provided on the extension block 21, the distance between the first frame 2 and the second frame 3 is different after the adjustment holes 211 at different positions coincide with the positioning holes 4 on the second frame 3. After adjusting the distance between the frame bodies 3, the fastening bolts 51 pass through the positioning holes 4 and the adjustment holes 211, and are limited by the fastening nuts 52, thereby changing the distance between the first frame body 2 and the second frame body 3, making it suitable for chainsaw guards of different thicknesses. Furthermore, by setting baffles 64 on the first chamber 61 and the second chamber 62, and setting limiting posts 71 and limiting plates 72 on the baffles 64, after the positions of the first frame body 2 and the second frame body 3 are adjusted, the limiting plates 72 can also limit the two sides of the saw blade guard, thereby enhancing the stability of the entire saw blade guard during use.

[0034] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A support joint for a portable cutting machine, characterized in that, include: The bracket assembly includes a first frame and a second frame. One end of the first frame is provided with an extension block, and the extension block has a plurality of adjustment holes. The side of the second frame facing the first frame has a receiving cavity for inserting the extension block. An elastic element is provided in the receiving cavity, and the second frame has positioning holes that cooperate with the plurality of adjustment holes. The extension block is used to extend into the receiving cavity and compress the elastic element to cause deformation. Fasteners are detachably connected in the positioning holes and the adjustment holes, and the fasteners are used to adjust the distance between the first frame and the second frame.

2. The support joint of a portable cutting machine according to claim 1, characterized in that: The first frame and the second frame are provided with coaxial hollow cylinders, and the upper end of the second frame is provided with an extension plate.

3. The support joint of a portable cutting machine according to claim 1, characterized in that: The elastic element includes a spring damper and a baffle plate; a plurality of the spring dampers are disposed on the inner wall of the receiving cavity, and the baffle plate is connected to the end of the spring damper.

4. The support joint of a portable cutting machine according to claim 1, characterized in that: The fastener includes a fastening bolt and a fastening nut; one end of the fastening bolt passes through the positioning hole and the adjustment hole, and is threadedly connected to the fastening nut.

5. The support joint of a portable cutting machine according to claim 1, characterized in that: The bracket assembly is also provided with a limiting chamber, which includes a first chamber and a second chamber; the first frame and the second frame are respectively provided with a first chamber and a second chamber, and the inner walls of the first chamber and the second chamber are provided with reinforcing ribs at an incline.

6. The support joint of a portable cutting machine according to claim 5, characterized in that: The surfaces of the first chamber and the second chamber are provided with baffles, the area of ​​which is equal to half of the cross-section of the first chamber and the second chamber.

7. The support joint of a portable cutting machine according to claim 6, characterized in that: Each of the two baffles has a limiting end on its opposite side. The limiting end includes a limiting post and a limiting plate. The limiting post is connected to the baffle, and the end of the limiting post is connected to the limiting plate. The two limiting plates are used to limit the saw blade protective cover.

Images