Cutting tool for expansion joint of small-section channel

Abstract

The utility model discloses a cutting tool for a small-section channel expansion joint, which relates to the technical field of cutting tools and comprises a transverse plate a and an adjusting mechanism, one side of the transverse plate a is fixedly connected with an expansion plate a, and the inside of the expansion plate a is slidably connected with an expansion plate b. According to the cutting tool for the small-section channel expansion joint, a motor is started to drive a driving gear to be meshed with a driven gear, so that the driven gear and a connecting shaft on the inner side rotate, the connecting shaft can drive a square rod and a round rod in the connecting shaft to rotate, the round rod and the connecting shaft can both drive a set of bevel gears c to rotate, and the bevel gears c can be meshed with bevel gears d; the bevel gear d drives the eccentric wheel on one side to rotate, when the eccentric wheel rotates, the idler wheel at the bottom can be extruded, the connecting block drives the cutter to move downwards, the expansion joint at the bottom is cut, the spring b can reset, the guide rod is pushed to drive the cutter to move upwards, and resetting is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a cutting tool for a small-section channel expansion joint. Background Art

[0002] In order to prevent quality problems such as cracks caused by thermal expansion and contraction, expansion joints must be set during the construction of concrete channels to ensure that the concrete can expand and contract effectively and prevent cracks. After the expansion joints are laid, they need to be cut with cutting tools.

[0003] For example, announcement number CN220482163U is a cutting tool for small-section channel expansion joints. This cutting tool for small-section channel expansion joints can eliminate the need for tools such as ruler measurement, ink line marking and cutting when in use. The overall construction time is short, greatly improving construction efficiency.

[0004] When the expansion joint cutting tool in the above scheme is used to cut the expansion joint, it is necessary to manually hold the four handles of the cutting tool and then press the handles downward to drive the cutting blade to move downward to cut the cutting joint. This method of cutting the expansion joint requires the cooperation of multiple people, has great limitations, and is difficult to cut the expansion joint quickly. Utility Model Content

[0005] The utility model aims to provide a cutting tool for expansion joints of small-section channels, so as to solve the problem that the existing expansion joint cutting tools mentioned in the background technology are difficult to quickly cut the expansion joints.

[0006] To achieve the above object, the utility model provides the following technical solution: a cutting tool for a small-section channel expansion joint, comprising: a horizontal plate a and an adjustment mechanism, one side of the horizontal plate a is fixedly connected to the expansion plate a, and the interior of the expansion plate a is slidably connected to the expansion plate b,

[0007] One end of the telescopic plate b is fixedly connected to a transverse plate b, and cutters are provided at the bottom of the transverse plate b and the transverse plate a. An adjustment mechanism is provided at the bottom of the telescopic plate a, and the adjustment mechanism includes a latch slidably connected to the inside of the telescopic plate a, and a spring a is sleeved on the outside of the latch. A motor is fixed to the top of the telescopic plate b through a bracket, and a driving gear is fixedly connected to the output end of the motor, and a driven gear is meshedly connected to the outside of the driving gear, and a connecting shaft is fixedly connected to the inside of the driven gear. The inner sliding part of the connecting shaft A square rod is movably connected, one end of the square rod is fixedly connected to a round rod, the round rod and one end of the connecting shaft are fixedly connected to a bevel gear c, the outer side of the bevel gear c is meshingly connected to a bevel gear d, one side of the bevel gear d is fixedly connected to an eccentric wheel, the outer side of the eccentric wheel is rollingly abutted with a roller, both sides of the roller are movably connected with connecting blocks through a rotating shaft, both ends of the cross plate a and the cross plate b are slidably connected to a guide rod, the outer side of the guide rod is sleeved with a spring b, and the tops of the cross plates a and b are abutted against the spring b.

[0008] Preferably, one side of the eccentric wheel is movably connected to the transverse plate a and the transverse plate b via a rotating shaft and a bracket, and the bottom of the connecting block is fixedly connected to the cutter.

[0009] Preferably, a plurality of card slots are provided at the bottom of the telescopic plate b, and the card slots are engaged with the latches.

[0010] Preferably, a plurality of groups of the card slots are equidistantly distributed at the bottom of the telescopic plate b, and a handle is movably connected to the top of the transverse plate b via a bearing.

[0011] Preferably, a bevel gear a is fixedly connected to the bottom of the handle, and a bevel gear b is meshingly connected to the outer side of the bevel gear a.

[0012] Preferably, a threaded rod is fixedly connected to one side of the bevel gear b, an end of the threaded rod is movably connected to the transverse plate b via a bearing, and an outer side of the threaded rod is threadedly connected to the telescopic plate b.

[0013] Preferably, a sliding rod is slidably connected inside the telescopic plate b, and one end of the sliding rod is fixedly connected to the horizontal plate b.

[0014] Compared with the prior art, the beneficial effect of the cutting tool for expansion joints of small-section channels is that when the expansion joints are cut, the cutting tool for expansion joints of small-section channels drives the driving gear to engage with the driven gear by starting the motor, so that the driven gear and the inner connecting shaft rotate, and the connecting shaft can drive the internal square rod and round rod to rotate, and the round rod and the connecting shaft can drive a group of bevel gears c to rotate, and the bevel gear c will engage with the bevel gear d, so that the bevel gear d drives the eccentric wheel on one side to rotate, and when the eccentric wheel rotates, it can squeeze the roller at the bottom, so that the connecting block drives the cutter to move downward to cut the expansion joint at the bottom, and the spring b will reset and push the guide rod to drive the cutter to move upward to complete the reset, so that the above operation can facilitate the rapid cutting of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the horizontal plate b of the utility model;

[0018] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the telescopic plate a of the utility model;

[0019] Figure 5 This is a three-dimensional cross-sectional schematic diagram of the connecting shaft of the utility model;

[0020] Figure 6 For this utility model Figure 3 An enlarged schematic diagram of point A.

[0021] In the figure: 1. horizontal plate a; 2. horizontal plate b; 3. cutter; 4. telescopic plate a; 5. telescopic plate b; 6. adjustment mechanism; 61. latch; 62. spring a; 63. slot; 64. handle; 65. bevel gear a; 66. bevel gear b; 67. threaded rod; 68. slide rod; 7. motor; 8. driving gear; 9. driven gear; 10. connecting shaft; 11. square rod; 12. round rod; 13. bevel gear c; 14. bevel gear d; 15. eccentric wheel; 16. roller; 17. connecting block; 18. guide rod; 19. spring b. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 6 The utility model provides a technical solution: a cutting tool for a small-section channel expansion joint, comprising: a horizontal plate a1 and an adjustment mechanism 6, a telescopic plate a4 is fixedly connected to one side of the horizontal plate a1, and a telescopic plate b5 is slidably connected inside the telescopic plate a4,

[0024] One end of the telescopic plate b5 is fixedly connected to the horizontal plate b2, and the bottoms of the horizontal plate b2 and the horizontal plate a1 are both provided with a cutter 3. The bottom of the telescopic plate a4 is provided with an adjustment mechanism 6, and the adjustment mechanism 6 includes a latch 61 slidably connected to the inside of the telescopic plate a4, and a spring a62 is sleeved on the outside of the latch 61. A motor 7 is fixedly connected to the top of the telescopic plate b5 through a bracket, and a driving gear 8 is fixedly connected to the output end of the motor 7. A driven gear 9 is meshedly connected to the outside of the driving gear 8, and a connecting shaft 10 is fixedly connected to the inside of the driven gear 9, and a square rod 11 is slidably connected to the inside of the connecting shaft 10. One end of the square rod 11 is fixedly connected to the round rod 12, and the round rod 12 and one end of the connecting shaft 10 are fixedly connected to the bevel gear c13, the outer side of the bevel gear c13 is meshed with the bevel gear d14, one side of the bevel gear d14 is fixedly connected to the eccentric wheel 15, the outer side of the eccentric wheel 15 is rollingly abutted with the roller 16, and the two sides of the roller 16 are movably connected with the connecting block 17 through the rotating shaft, and the two ends of the horizontal plate a1 and the horizontal plate b2 are slidably connected with the guide rod 18, and the outer side of the guide rod 18 is sleeved with a spring b19, and the tops of the horizontal plates a1 and b2 are abutted with the spring b19;

[0025] One side of the eccentric wheel 15 is movably connected to the transverse plate a1 and the transverse plate b2 through a rotating shaft and a bracket, the bottom of the connecting block 17 is fixedly connected to the cutter 3, a rectangular groove matching the square rod 11 is provided inside the connecting shaft 10, and the square rod 11 and the connecting shaft 10 form a sliding structure; a plurality of groups of card slots 63 are provided at the bottom of the telescopic plate b5, and the card slots 63 are engaged and connected with the latch 61; the plurality of groups of card slots 63 are equidistantly distributed at the bottom of the telescopic plate b5, and a handle 64 is movably connected to the top of the transverse plate b2 through a bearing; the bottom of the handle 64 is fixedly connected to the bevel gear a 65, the outer side of the bevel gear a65 is meshingly connected with the bevel gear b66; a threaded rod 67 is fixedly connected to one side of the bevel gear b66, the end of the threaded rod 67 is movably connected to the cross plate b2 through a bearing, and the outer side of the threaded rod 67 is threadedly connected to the telescopic plate b5; the inside of the telescopic plate b5 is slidably connected with a slide rod 68, one end of the slide rod 68 is fixedly connected to the cross plate b2, the threaded rod 67 and the telescopic plate b5 form a threaded transmission structure, the inside of the telescopic plate b5 is provided with a slide groove matching the slide rod 68, and the slide rod 68 and the telescopic plate b5 form a sliding structure.

[0026] In a specific implementation, the cutting tool for the expansion joint of a small-section channel drives the driving gear 8 to mesh with the driven gear 9 by starting the motor 7 during the expansion cutting, so that the driven gear 9 and the inner connecting shaft 10 rotate, and the connecting shaft 10 can drive the internal square rod 11 and the round rod 12 to rotate, and the round rod 12 and the connecting shaft 10 can drive a set of bevel gears C13 to rotate, and the bevel gear C13 will mesh with the bevel gear D14, so that the bevel gear D14 drives the eccentric wheel 15 on one side to rotate. When the eccentric wheel 15 rotates, it can squeeze the roller 16 at the bottom, so that the connecting block 17 drives the cutter 3 to move downward to cut the expansion joint at the bottom. When the two sets of cutters 3 move, they will slide inside the transverse plate a1 and the transverse plate b2 through the top guide rod 18 and squeeze the spring b19. When the eccentric wheel 15 is free from squeezing the roller 16, the spring b19 will reset and push the guide rod 18 to drive the cutter 3 to move upward to complete the reset, so that the expansion joint can be quickly cut;

[0027] When it is necessary to adjust the spacing between the two groups of cutters 3, the spring a62 is squeezed by pulling the latch 61. When the latch 61 is disengaged from the engagement with the slot 63 in the telescopic plate b5, the cross plate a1 and the cross plate b2 can be moved to make the telescopic plate b5 slide in the telescopic plate a4. When it is adjusted to the required position, the latch 61 can be released. At this time, the spring a62 will reset and push the latch 61 to engage with other slots 63 in the telescopic plate b5. When it is necessary to fine-tune the two groups of cutters 3, the handle 64 is turned to drive the bevel gear a65 to engage with the bevel gear b66, thereby driving the threaded rod 67 and the telescopic plate b5 to perform threaded transmission, driving the two groups of cutters 3 to move. When the two groups of cutters 3 are moved and adjusted, the square rod 11 will slide inside the connecting shaft 10, thereby using the spacing between the two groups of cutters 3. In this way, the above operation can facilitate the rapid cutting of the expansion joint.

[0028] To sum up: when using a cutting tool for expansion joints of small-section channels, firstly, the horizontal plates a1 and b2 are erected on the top of the channel, and then the transmission mechanism is started to drive the cutter 3 to move downward to cut the expansion joints in the channel. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cutting tool for small-section channel expansion joints, comprising: A horizontal plate a (1) and an adjustment mechanism (6), wherein one side of the horizontal plate a (1) is fixedly connected to a telescopic plate a (4), and the interior of the telescopic plate a (4) is slidably connected to a telescopic plate b (5), characterized in that: One end of the telescopic plate b (5) is fixedly connected to a transverse plate b (2), and a cutter (3) is provided at the bottom of each of the transverse plate b (2) and the transverse plate a (1). An adjustment mechanism (6) is provided at the bottom of the telescopic plate a (4), and the adjustment mechanism (6) comprises a latch (61) slidably connected to the inside of the telescopic plate a (4), and a spring a (62) is sleeved on the outer side of the latch (61). A motor (7) is fixedly connected to the top of the telescopic plate b (5) via a bracket, and a driving gear (8) is fixedly connected to the output end of the motor (7), and a driven gear (9) is meshedly connected to the outer side of the driving gear (8), and a connecting shaft (10) is fixedly connected to the inner side of the driven gear (9), and a square rod (10) is slidably connected to the inside of the connecting shaft (10). 1), one end of the square rod (11) is fixedly connected to a round rod (12), one end of the round rod (12) and the connecting shaft (10) are fixedly connected to a bevel gear c (13), the outer side of the bevel gear c (13) is meshingly connected to a bevel gear d (14), one side of the bevel gear d (14) is fixedly connected to an eccentric wheel (15), the outer side of the eccentric wheel (15) is rollingly abutted against a roller (16), both sides of the roller (16) are movably connected to connecting blocks (17) via a rotating shaft, both ends of the transverse plate a (1) and the transverse plate b (2) are slidably connected to guide rods (18), the outer side of the guide rod (18) is sleeved with a spring b (19), and the tops of the transverse plate a (1) and the transverse plate b (2) are abutted against the spring b (19).

2. A cutting tool for small-section channel expansion joints according to claim 1, characterized in that: One side of the eccentric wheel (15) is movably connected to the transverse plate a (1) and the transverse plate b (2) via a rotating shaft and a bracket, and the bottom of the connecting block (17) is fixedly connected to the cutter (3).

3. A cutting tool for small-section channel expansion joints according to claim 1, characterized in that: The bottom of the telescopic plate b (5) is provided with a plurality of groups of slots (63), and the slots (63) are engaged and connected with the latch pins (61).

4. A cutting tool for small-section channel expansion joints according to claim 3, characterized in that: A plurality of groups of the slots (63) are equidistantly distributed at the bottom of the telescopic plate b (5), and a handle (64) is movably connected to the top of the transverse plate b (2) via a bearing.

5. A cutting tool for small-section channel expansion joints according to claim 4, characterized in that: The bottom of the handle (64) is fixedly connected to a bevel gear a (65), and the outer side of the bevel gear a (65) is meshingly connected to a bevel gear b (66).

6. A cutting tool for small-section channel expansion joints according to claim 5, characterized in that: A threaded rod (67) is fixedly connected to one side of the bevel gear b (66); an end of the threaded rod (67) is movably connected to the transverse plate b (2) via a bearing; and an outer side of the threaded rod (67) is threadedly connected to the telescopic plate b (5).

7. A cutting tool for small-section channel expansion joints according to claim 6, characterized in that: A sliding rod (68) is slidably connected inside the telescopic plate b (5), and one end of the sliding rod (68) is fixedly connected to the horizontal plate b (2).

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