A channel grooving device

Abstract

The present application discloses a channel grooving device, which relates to the technical field of engineering construction equipment. It includes a main frame, and grooving units are respectively provided at the left and right ends of the main frame. A pressing slide capable of sliding back and forth relative to the main frame is provided between the two grooving units on the main frame. The grooving unit includes a positioning slide capable of moving along the side wall of the channel, and a grooving machine is fixedly provided on the positioning slide. The pressing slide includes two slides slidably connected to the main frame, and a pressing rod capable of sliding up and down relative to the slide is slidably provided on the slide, and an elastic member for preventing the pressing rod from moving downward relative to the slide is provided between the pressing rod and the slide, and a pedal is provided between the lower ends of the two pressing rods. The use of this device for grooving can effectively reduce the labor intensity of workers and improve construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of engineering construction equipment, in particular to a channel grooving device. Background Art

[0002] In urban construction, different trenches need to be built, such as cable trenches, drainage trenches, sewage trenches, etc. Cover plates need to be laid on the trenches to provide safety protection. Current cover plates are made of plastic, concrete or cast iron materials, and are directly covered on the trenches. Sometimes, due to the uneven surface of the trench, the cover plates are prone to loosening and displacement.

[0003] To solve this problem, a soft connecting material is now placed between the cover plate and the channel surface. Therefore, a groove needs to be opened on the upper surface of the channel to place the soft connecting material. However, since there is no dedicated groove cutting machine for the channel, the groove is usually cut manually using a handheld groove cutting machine.

[0004] When grooving is done manually with a handheld grooving machine, on the one hand, the grooving machine is relatively heavy, so manual operation is labor-intensive and construction efficiency is low; on the other hand, grooving is done manually with a handheld grooving machine because it relies entirely on visual positioning by the staff, so the problem of grooving deviation is easy to occur. Summary of the Invention

[0005] In response to the above problems, the present application provides a channel grooving device. Compared with the traditional handheld grooving machine, the use of this device for grooving can effectively reduce the labor intensity of workers, improve construction efficiency, and avoid the problem of grooving deviation.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] A channel grooving device comprises a main frame, wherein the left and right ends of the main frame are respectively provided with grooving units, and a pressing slide which can slide back and forth relative to the main frame is provided on the main frame between the two grooving units;

[0008] The slotting unit includes a positioning slide capable of moving along the side wall of the channel, and a slotting machine is fixedly installed on the positioning slide;

[0009] The clamping slide includes two slides slidably connected to the main frame, and a clamping rod that can slide up and down relative to the slide is slidably provided on the slide, and an elastic member is provided between the clamping rod and the slide to prevent the clamping rod from moving downward relative to the slide, and a pedal is provided between the lower ends of the two clamping rods.

[0010] Furthermore, the positioning slide includes a horizontal frame, and vertical frames are respectively provided at both ends of the horizontal frame. The vertical frames are provided with at least two first roller assemblies facing the side walls of the channel in the front-to-back direction, and a second roller assembly is provided on the lower side of the horizontal frame.

[0011] Furthermore, the first roller assembly includes a first mounting frame and a first roller arranged on the first mounting frame, the first mounting frame is provided with a first guide rod, the vertical frame is provided with a first guide hole matching the first guide rod, the first mounting frame is provided with a screw rod, and the end of the screw rod passes through the vertical frame and extends to the outside of the vertical frame, and the screw rod is provided with locking nuts on both sides of the vertical frame.

[0012] Furthermore, a control component for controlling the slotting machine switch is provided on the cross frame, and the control component includes a control block, a sliding shaft is provided on the control block, and the lower end of the sliding shaft passes through the cross frame and extends to the bottom of the cross frame, and the control block includes a first working surface and a second working surface. When the second working surface faces the switch of the slotting machine, the control block is disengaged from the switch of the slotting machine. When the first working surface of the control block faces the switch of the slotting machine, the first working surface abuts against the switch of the slotting machine and puts the slotting machine into an on state.

[0013] Furthermore, a vacuum cleaner is provided on the positioning slide, and a dust suction port of the vacuum cleaner is connected to a dust outlet hole provided on the saw blade cover of the slotting machine through a pipe.

[0014] Furthermore, the clamping rod includes an upper pull rod, a guide sleeve is provided on the upper pull rod, and the guide sleeve is threadedly connected to the upper pull rod, a third guide hole is provided on the slide plate, which cooperates with the outer cylindrical surface of the guide sleeve, and the elastic member is a second spring mounted on the guide sleeve.

[0015] Furthermore, the clamping rod also includes a lower pull rod, and the upper pull rod and the lower pull rod are hinged via a hinge shaft, the axis of the hinge shaft is parallel to the pedal, and the lower end of the lower pull rod is fixedly connected to the pedal.

[0016] Furthermore, a third spring and a limit sleeve are sequentially sleeved on the lower pull rod from bottom to top, and when the upper pull rod is in a vertical state, the limit sleeve is located at the hinge of the upper pull rod and the lower pull rod under the action of the third spring, and the limit sleeve limits the relative rotation between the upper pull rod and the lower pull rod.

[0017] Furthermore, the positioning slide is slidably connected to the main frame.

[0018] Furthermore, a gripping rod is provided on the main frame, and the front and rear ends of the gripping rod are respectively fixedly connected to the main frame.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a channel slotting device. By providing a positioning carriage capable of traveling along the channel sidewalls, and mounting a slotting machine for slotting on the positioning carriage, the operator no longer needs to hold the slotting machine while slotting, effectively reducing labor intensity and improving construction efficiency. Furthermore, because the positioning carriage and the channel sidewalls are positioned in a relatively fixed position in the transverse direction (perpendicular to the channel's extension direction), the positioning carriage ensures that the path of the slotting machine's saw blade is parallel to the channel sidewalls as it slides along the channel sidewalls, thus preventing the problem of skewed slotting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A working state diagram of a trench grooving device provided in one embodiment of the present application;

[0022] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A;

[0023] Figure 3 An exploded view of a channel grooving device provided in one embodiment of the present application;

[0024] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part B;

[0025] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of part C;

[0026] Figure 6 Schematic diagram of the explosion of the slotted unit Figure 1 ;

[0027] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of part D;

[0028] Figure 8 for Figure 6 Schematic diagram of the enlarged structure of part E;

[0029] Figure 9 Schematic diagram of the explosion of the slotted unit Figure 2 ;

[0030] Figure 10 for Figure 9 Schematic diagram of the enlarged structure of part F;

[0031] Figure 11 for Figure 9 Schematic diagram of the enlarged structure of part G;

[0032] Figure 12 Schematic diagram of the three-dimensional structure of the control block;

[0033] Figure 13 This is a cross-sectional view of the main frame;

[0034] Figure 14 for Figure 13 Schematic diagram of the enlarged structure of the H part;

[0035] Figure 15 for Figure 13 Schematic diagram of the enlarged structure of part I;

[0036] Figure 16 A schematic diagram of the operation of a trenching device provided in one embodiment of the present application;

[0037] Figure 17 A folding process of a channel grooving device provided in one embodiment of the present application Figure 1 ;

[0038] Figure 18 for Figure 17 Schematic diagram of the enlarged structure of the J part;

[0039] Figure 19 A folding process of a channel grooving device provided in one embodiment of the present application Figure 2 ;

[0040] Figure 20 for Figure 19 Schematic diagram of the enlarged structure of the K part;

[0041] Figure 21 for Figure 19 Schematic diagram of the enlarged structure of the L part.

[0042] In the figure: 1, main frame; 11, crossbeam; 111, clamping ring; 12, second guide rod; 13, gripping rod;

[0043] 2. Slotting unit; 211. Horizontal bar; 212. Longitudinal bar; 213. Vertical bar; 2131. Guide plate; 214. Connecting rod; 22. First roller assembly; 221. First mounting bracket; 222. First roller; 223. First guide rod; 224. Screw; 225. Locking nut; 23. Second roller assembly; 24. Slotting machine; 242. Saw blade cover; 243. Switch; 25. Hinge assembly; 251. First connecting plate; 252, second connecting plate; 2521, first connecting portion; 2522, second connecting portion; 2523, third connecting portion; 26, fixing assembly; 261, first fixing plate; 262, second fixing plate; 27, vacuum cleaner; 28, duct; 291, control block; 2911, sliding shaft; 2912, first working surface; 2913, second working surface; 2914, baffle; 2915, positioning protrusion; 292, first spring;

[0044] 3. Compression carriage; 31. Slide plate; 32. Compression rod; 321. Upper pull rod; 322. Guide sleeve; 3221. Limiting boss; 323. Lower pull rod; 324. Articulated shaft; 33. Second spring; 34. Pedal; 35. Third spring; 36. Limiting sleeve;

[0045] 4. Channel; 41. Sidewall. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below in conjunction with the drawings in the embodiments of this application. The described embodiments are only part of the embodiments of this application, not all of the embodiments. All other embodiments obtained by those skilled in the art without creative work based on the embodiments of this application should fall within the scope of protection of this application.

[0047] For the convenience of description, the direction in which the channel 4 extends is taken as the front-back direction, and the coordinate system is defined as follows: Figure 1 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0048] like Figure 1 and Figure 3 As shown, a channel 4 slotting device includes a main frame 1, and slotting units 2 for slotting the side walls 41 of the channel 4 are respectively provided at both ends of the main frame 1. A pressing slide 3 is slidably provided on the main frame 1 between the two slotting units 2, and the pressing slide 3 can slide back and forth relative to the main frame 1.

[0049] like Figure 6 and Figure 9As shown, the slotting unit 2 includes a positioning slide capable of traveling along the sidewall 41 of the channel 4. The positioning slide includes a horizontal frame, and vertical frames extending downward perpendicularly from the horizontal frame are respectively provided at both ends of the horizontal frame. The vertical frames are provided with at least two first roller assemblies 22 for lateral positioning in the front-to-back direction. A second roller assembly 23 for supporting the positioning slide is provided on the lower side of the horizontal frame. Exemplarily, at least two groups of second roller assemblies are provided on the lower side of the truss in the front-to-back direction, and each group of second roller assemblies includes at least two second roller assemblies 23 arranged in the transverse direction.

[0050] As a specific embodiment, the horizontal frame described in this embodiment includes two horizontally extending horizontal bars 211, two vertical bars 212 extending longitudinally are arranged between the two horizontal bars 211, and the ends of the vertical bars 212 are fixedly connected to the horizontal bars 211 by welding. The vertical frame includes two vertical bars 213, and the two vertical bars 213 are respectively fixedly arranged at the ends of the horizontal bars 211. Exemplarily, the upper ends of the vertical bars 213 are fixedly connected to the horizontal bars 211 by welding. The vertical frame is provided with two sets of first pulley assemblies, and the two sets of first pulley assemblies are respectively arranged at the lower ends of the two vertical bars 213.

[0051] like Figure 2 As shown, during operation, the positioning slide straddles the sidewalls 41 of the channel 4, and the first roller assembly 22 on the stand abuts against both sides of the sidewalls 41 of the channel 4, achieving lateral positioning of the positioning slide relative to the sidewalls 41 of the channel 4. The second roller assembly 23 abuts against the upper side of the sidewalls 41 of the channel 4 to support the positioning slide. Under the action of the first roller assembly 22 and the second roller assembly 23, the positioning slide can stably move along the sidewalls 41 of the channel 4.

[0052] Furthermore, in order to adapt to the different thicknesses of the channel sidewalls 41, as Figure 11As shown, the first roller assembly 22 includes a first mounting bracket 221 located inside the vertical rod 213 (with the side opposite the two vertical brackets as the inside). The first mounting bracket 221 includes a first mounting plate. First lugs are provided at the upper and lower ends of the first mounting plate, extending perpendicularly inward from the first mounting plate (with the side opposite the two vertical brackets as the inside). A first roller 222 is provided between the two first lugs. Two first guide rods 223 are provided on the first mounting plate, extending perpendicularly outward from the first mounting plate (with the side opposite the two vertical brackets as the inside). The ends of the first guide rods 223 extend through the vertical rod 213 to the outside of the vertical rod 213. The vertical rod 213 is provided with a first guide hole that mates with the first guide rods 223. A screw rod 224 is fixedly mounted on the first mounting plate between the two first guide rods 223, and the ends of the screw rod 224 extend through the vertical rod 213 to the outside of the vertical rod 213. The screw rod 224 is provided with locking nuts 225 on both sides of the vertical rod 213. In this way, the distance between the first roller 222 and the vertical rod 213 can be adjusted, thereby adjusting the distance between the first rollers 222 on the two vertical frames to accommodate channel sidewalls 41 of different thicknesses.

[0053] As a specific implementation, the two first guide rods 223 in this embodiment are respectively arranged at the left and right ends of the first mounting plate, and the left and right sides of the vertical rod 213 are respectively fixed with guide plates 2131 by welding, and the first guide hole is arranged on the guide plate 2131.

[0054] like Figure 6 and Figure 9 As shown, a slotting machine 24 is fixedly installed on the positioning slide, and the lower end of the saw blade of the slotting machine 24 is located below the second roller assembly 23, that is, when the second roller assembly 23 abuts against the upper side surface of the channel side wall 41, the lower end of the saw blade extends into the side wall 41 of the channel 4, thereby cutting and slotting the side wall 41 of the channel 4.

[0055] As a specific embodiment, the slotting machine 24 in this embodiment is located between the two longitudinal rods 212. The front end of the slotting machine 24 is rotatably connected to the positioning slide via a hinge assembly 25, and the rear end of the slotting machine 24 is fixedly connected to the positioning slide via a fixing assembly 26. Figure 6 、 Figure 8 and Figure 9As shown, the hinge assembly 25 includes a first connecting plate 251 and a second connecting plate 252 that are hinged to each other. The first connecting plate 251 is fixedly connected to the cross frame by screws, and the second connecting plate 252 is fixedly connected to the front end of the slotting machine 24. Figure 6 and Figure 7 As shown, the fixing assembly 26 includes a first fixing plate 261 and a second fixing plate 262. The two ends of the first fixing plate 261 are fixedly connected to the longitudinal rod 212 by welding, and the two ends of the second fixing plate 262 are fixedly connected to the first fixing plate 261 by bolt assemblies. The first fixing plate 261 and the second fixing plate 262 are respectively provided with a recessed portion for accommodating the slotting machine 24. Under the locking action of the bolt assemblies, the first fixing plate 261 and the second fixing plate 262 are clamped to the slotting machine 24.

[0056] Furthermore, if Figure 3 and Figure 6 As shown, a vacuum cleaner 27 is fixedly mounted on the positioning carriage in front of the slotting machine 24. The vacuum outlet of the vacuum cleaner 27 is connected to a dust outlet on the saw blade cover 242 of the slotting machine 24 via a pipe 28. The vacuum cleaner 27 is detachably fixed to the positioning carriage. This allows the vacuum cleaner 27 to promptly remove dust from the saw blade cover 242 during slotting, reducing dust generation.

[0057] As a specific embodiment, a connecting rod 214 is provided between the two longitudinal rods 212 in this embodiment, and the two ends of the connecting rod 214 are fixedly connected to the longitudinal rod 212 by welding. The first connecting plate 251 is fixedly provided on the upper side of the connecting rod 214. The second connecting plate 252 includes a first connecting portion 2521 hinged to the first connecting plate 251. The free end of the first connecting portion 2521 is provided with a second connecting portion 2522 extending downward perpendicularly from the first connecting portion 2521. The free end of the second connecting portion 2522 is provided with a third connecting portion 2523. The third connecting portion 2523 is fixedly connected to the lower side of the front end of the slotting machine 24. The second connecting portion 2522 abuts against the connecting rod 214. This can reduce the force on the screws between the first connecting plate 251 and the connecting rod 214, ensuring the stability and reliability of the structure.

[0058] like Figure 6 、 Figure 9 、 Figure 10 and Figure 12As shown, the cross frame is provided with a control component for controlling the switch 243 of the slotting machine 24. The control component includes a control block 291, and a sliding shaft 2911 extending downward perpendicularly to the control block 291 is provided on the lower end surface of the control block 291, and the lower end of the sliding shaft 2911 passes through the cross frame and extends to the bottom of the cross frame. The control block 291 includes a first working surface 2912 and a second working surface 2913, and the distance from the first working surface 2912 to the sliding shaft 2911 is greater than the distance from the second working surface 2913 to the sliding shaft 2911. Figure 5 As shown, when the second working surface 2913 faces the switch 243 of the slotting machine 24, the control block 291 is disengaged from the switch 243 of the slotting machine 24, and the slotting machine 24 is in the off state. When the first working surface 2912 of the control block 291 faces the switch 243 of the slotting machine 24, the first working surface 2912 abuts against the switch 243 of the slotting machine 24, and the slotting machine 24 is in the on state. For example, the cross-section of the control block 291 is rectangular, and the four vertical edges of the control block 291 are rounded.

[0059] Furthermore, in order to prevent the control block 291 from rotating due to vibration during operation, Figure 10 As shown, a baffle 2914 is fixedly provided at the lower end of the sliding shaft 2911, and a first spring 292 is sleeved on the sliding shaft 2911 between the baffle 2914 and the horizontal slide. Under the elastic force of the first spring 292, the lower end surface of the control block 291 is pressed against the horizontal frame.

[0060] Furthermore, if Figure 12 As shown, a positioning protrusion 2915 is provided on the lower end surface of the control block 291, and a first positioning hole (not shown) and a second positioning hole (not shown) are provided on the cross frame. When the positioning protrusion 2915 engages with the first positioning hole, the first working surface 2912 of the control block 291 faces the switch 243 of the slotting machine 24. When the positioning protrusion 2915 engages with the second positioning hole, the second working surface 2913 of the control block 291 faces the switch 243 of the slotting machine 24.

[0061] like Figure 3As shown, the pressing slide 3 includes two slides 31 slidably connected to the main frame 1, and the slides 31 can slide back and forth relative to the main frame 1. A pressing rod 32 is slidably provided on the slide 31, and the pressing rod 32 can slide up and down relative to the slide 31. An elastic member is provided between the pressing rod 32 and the slide 31 to prevent the pressing rod 32 from moving downward relative to the slide 31. A pedal 34 is provided between the two pressing rods 32, and both ends of the pedal 34 are fixedly connected to the pressing rod 32.

[0062] As a specific embodiment, the main frame 1 described in this embodiment includes two transversely extending crossbeams 11, and the ends of the crossbeams 11 are respectively connected to the positioning slide. Second guide rods 12 are respectively provided on the left and right sides of the slide 31, and the front and rear ends of the second guide rods 12 are respectively fixedly connected to the crossbeams 11. The slide 31 is provided with second guide holes that cooperate with the second guide rods 12, and the slide 31 can slide back and forth relative to the second guide rods 12.

[0063] like Figure 13 and Figure 14 As shown, the clamping rod 32 includes an upper rod 321, which is provided with a guide sleeve 322, and the guide sleeve 322 is threadedly connected to the upper rod 321. The upper rod 321 is provided with an external thread, and the inner cylindrical surface of the guide sleeve 322 is provided with an internal thread that mates with the external thread on the upper rod 321. The slide 31 is provided with a third guide hole located between the two second guide rods 12, which mates with the outer cylindrical surface of the guide sleeve 322.

[0064] like Figure 3 and Figure 4 As shown, the elastic member is a second spring 33 which is sleeved on the guide sleeve 322. A limiting boss 3221 is provided on the upper end of the guide sleeve 322. The lower end of the second spring 33 rests on the upper side surface of the slide plate 31, and the upper end of the second spring 33 rests on the limiting boss 3221.

[0065] The reason for this design is that, when the slotting machine 24 slots the sidewall 41 of the channel 4, it not only pushes the positioning slide forward but also applies downward pressure to the slide to prevent it from being lifted up due to insufficient weight during operation. Specifically, during operation, a downward force is applied to the slide, ensuring that the second roller assembly 23 of the slide is always pressed against the upper side of the sidewall 41 of the channel 4. By providing the pressing slide 3, when a worker steps on the pedal 34 and presses it against the bottom surface of the channel 4 during operation, the second spring 33 is compressed, exerting a downward force on the slide 31. This downward force is transmitted to the slide via the crossbeam 11 of the main frame 1, further exerting a downward force on the slide, preventing it from being lifted up during operation. In this embodiment, a guide sleeve 322 is provided on the upper rod 321, and the guide sleeve 322 is threadedly connected to the upper rod 321. This allows the position of the guide sleeve 322 on the upper rod 321 to be adjusted, thereby adjusting the distance between the pedal 34 and the bottom surface of the channel 4 in the free state. This allows the force exerted on the slide 31 to be adjusted by adjusting the position of the guide sleeve 322 on the upper rod 321, and also allows the device to adapt to different channel 4 depths, thereby improving the application flexibility and versatility of the entire device.

[0066] Furthermore, if Figure 13 and Figure 15 As shown, the pressing rod 32 further includes a lower rod 323 located below the upper rod 321, and the upper rod 321 and the lower rod 323 are hingedly connected via a hinge shaft 324. The axis of the hinge shaft 324 is parallel to the pedal 34 and extends in the transverse direction. The lower end of the lower rod 323 is fixedly connected to the pedal 34.

[0067] The reason for this design is that when the channel 4 grooving device is in a non-working state, the pressing slide 3 can be pulled upward, so that the hinge portion of the lower rod 323 of the upper rod 321 moves to the top of the slide 31. At this time, rotating the upper rod 321 can make the upper rod 321 parallel to the main frame 1, which is convenient for transportation and storage.

[0068] Furthermore, if Figure 3 and Figure 4As shown, the crossbeam 11 of the main frame 1 is provided with a snap ring 111 that cooperates with the upper rod 321. The snap ring 111 is provided with a snap interface, and the central angle corresponding to the snap interface is less than 180°. In this way, when the upper rod 321 is rotated to a state parallel to the main frame 1, the upper rod 321 can be snap-fastened to the snap ring 111, thereby securing the upper rod 321.

[0069] Furthermore, the upper end of the second spring 33 is fixedly connected to the limiting boss 3221 by welding.

[0070] Furthermore, if Figure 13 and Figure 14 As shown, the third spring 35 and the limit sleeve 36 are sequentially sleeved on the lower pull rod 323 from bottom to top, and when the upper pull rod 321 is in a vertical state, the limit sleeve 36 is located at the hinge of the upper pull rod 321 and the lower pull rod 323 under the action of the third spring 35, and the limit sleeve 36 limits the relative rotation between the upper pull rod 321 and the lower pull rod 323.

[0071] The reason for this design is that the provision of the limiting sleeve 36 and the third spring 35 does not affect the folding function of the pressing slide 3, while also ensuring that the relative rotational freedom between the upper and lower rods 321, 323 is limited during operation, thereby forming the upper and lower rods 321, 323 as a single, rigid rod. Furthermore, this structural arrangement eliminates the need for any additional operations during the folding operation, making it easy to operate.

[0072] Furthermore, the positioning slide is slidably connected to the main frame 1, and the positioning slide can slide left and right relative to the main frame 1. As a specific embodiment, Figure 2 and Figure 3 As shown, the crossbar 211 of this embodiment is provided with a fourth guide hole that passes through the crossbar 211 in the left-right direction, and the cross-sectional shape and size of the fourth guide hole match the cross-sectional shape and size of the crossbeam 11. The crossbeam 11 located at the front side is inserted into the fourth guide hole of the crossbar 211 located at the front side, and the crossbeam 11 located at the rear side is inserted into the fourth guide hole of the crossbar 211 located at the rear side. For example, the crossbar 211 and the crossbeam 11 are both made of square steel tubes.

[0073] In this way, the position of the positioning slide on the main frame 1 is adjustable and can adapt to channels 4 of different widths.

[0074] Furthermore, if Figure 3As shown, a gripping rod 13 is provided on the inner side of each of the slides 31 (the inner side is the side opposite to the two slides 31 ) on the main frame 1 , and the front and rear ends of the gripping rod 13 are fixedly connected to the crossbeam 11 respectively.

[0075] like Figure 16 As shown, during operation, the operator stands in the square area formed by the two gripping rods 13 and the two crossbeams 11, holds the gripping rods 13 with both hands, and at the same time steps on the pedal 34, pressing the pedal 34 against the bottom surface of the channel 4. Then, while keeping the pedal 34 pressed against the bottom surface of the channel 4, the operator pushes the gripping rod 13 forward, so that the main frame 1 and the slotting unit 2 move forward as a whole, slotting the side wall 41 of the channel 4. At this time, the pressing slide 3 is in a fixed state, and the main frame 1 together with the slotting unit 2 moves forward relative to the pressing slide 3.

[0076] After the slotting work is completed, Figure 17 As shown, first pull the pressing slide 3 upward until it is as shown in FIG. Figure 18 As shown, the hinged portion between the upper pull rod 321 and the lower pull rod 323 moves to the top of the slide 31. At this time, the third spring 35 is compressed and the limiting sleeve 36 is pressed against the lower side of the slide 31. Figure 19 and Figure 20 As shown, rotate the upper rod 321 until the upper rod 321 is in a horizontal state, and then Figure 21 As shown, the upper pull rod 321 is clamped on the clamping ring 111. At this time, the entire slotting device presents a flat state, saving space and being convenient for transportation and storage.

[0077] Other embodiments obtained by those skilled in the art by combining, splitting, reorganizing, etc. the embodiments provided in this application do not exceed the scope of protection of this application.

[0078] The above specific implementation methods provide a detailed description of the purpose, technical solutions and beneficial effects of the embodiments of the present application. The above is only a specific implementation method of the embodiments of the present application and is not intended to limit the scope of protection of the embodiments of the present application. That is, any modifications, equivalent replacements, improvements, etc. made on the basis of the embodiments of the present application should be included in the scope of protection of the embodiments of the present application.

Claims

1. A trenching device, characterized in that: It comprises a main frame (1), wherein the left and right ends of the main frame (1) are respectively provided with slotted units (2), and a pressing slide (3) capable of sliding forward and backward relative to the main frame (1) is provided between the two slotted units (2) on the main frame (1); The slotting unit (2) includes a positioning slide capable of moving along the side wall (41) of the channel (4), and a slotting machine (24) is fixedly mounted on the positioning slide; The pressing slide (3) includes two slide plates (31) slidably connected to the main frame (1), a pressing rod (32) is slidably provided on the slide plate (31) and can slide up and down relative to the slide plate (31), and an elastic member is provided between the pressing rod (32) and the slide plate (31) for preventing the pressing rod (32) from moving downward relative to the slide plate (31), and a pedal (34) is provided between the lower ends of the two pressing rods (32); The positioning slide comprises a horizontal frame, and vertical frames are respectively provided at both ends of the horizontal frame. The vertical frames are provided with at least two first roller assemblies (22) facing the side walls (41) of the channel (4) in the front-back direction, and a second roller assembly (23) is provided on the lower side of the horizontal frame. The first roller assembly (22) includes a first mounting frame (221) and a first roller (222) arranged on the first mounting frame (221); a first guide rod (223) is arranged on the first mounting frame (221); a first guide hole matched with the first guide rod (223) is arranged on the vertical frame; a screw rod (224) is arranged on the first mounting frame (221); an end of the screw rod (224) passes through the vertical frame and extends to the outside of the vertical frame; locking nuts (225) are respectively arranged on both sides of the screw rod (224); The horizontal frame is provided with a control component for controlling the switch (243) of the slotting machine (24), and the control component includes a control block (291). The control block (291) is provided with a sliding shaft (2911), and the lower end of the sliding shaft (2911) passes through the horizontal frame and extends to the bottom of the horizontal frame. The control block (291) includes a first working surface (2912) and a second working surface (2913). When the second working surface (2913) faces the switch (243) of the slotting machine (24), the control block (291) is disengaged from the switch (243) of the slotting machine (24). When the first working surface (2912) of the control block (291) faces the switch (243) of the slotting machine (24), the first working surface (2912) abuts against the switch (243) of the slotting machine (24), and the slotting machine (24) is in an on state. The pressing rod (32) includes an upper pull rod (321) and a lower pull rod (323), the upper pull rod (321) and the lower pull rod (323) are hinged via a hinge shaft (324), the axis of the hinge shaft (324) is parallel to the pedal (34), and the lower end of the lower pull rod (323) is fixedly connected to the pedal (34); The lower pull rod (323) is provided with a third spring (35) and a limiting sleeve (36) in sequence from bottom to top, and when the upper pull rod (321) is in a vertical state, the limiting sleeve (36) is located at the hinge of the upper pull rod (321) and the lower pull rod (323) under the action of the third spring (35), and the limiting sleeve (36) limits the relative rotation between the upper pull rod (321) and the lower pull rod (323).

2. A trench grooving device according to claim 1, characterized in that: A dust collector (27) is provided on the positioning slide, and a dust suction port of the dust collector (27) is connected to a dust outlet hole provided on a saw blade cover (242) of the slotting machine (24) through a pipe (28).

3. A trench grooving device according to claim 1, characterized in that: The upper pull rod (321) is provided with a guide sleeve (322), and the guide sleeve (322) is threadedly connected to the upper pull rod (321). The slide plate (31) is provided with a third guide hole that matches the outer cylindrical surface of the guide sleeve (322). The elastic member is a second spring (33) that is sleeved on the guide sleeve (322).

4. A trench grooving device according to claim 1, characterized in that: The positioning slide is slidably connected to the main frame (1).

5. The trench grooving device according to claim 1, characterized in that: A holding rod (13) is provided on the main frame (1), and the front and rear ends of the holding rod (13) are respectively fixedly connected to the main frame (1).

Images