A device for opening grooves in the wall of a building

Abstract

This invention belongs to the field of wall groove cutting technology and discloses a wall groove cutting device for building construction, including a housing, a grooving mechanism, a handle frame, and two depth control mechanisms. The grooving mechanism is mounted on the housing and can cut grooves in the wall. The handle frame is also mounted on the housing. The two depth control mechanisms are respectively located on both sides of the housing. Each depth control mechanism includes a slide rod, which is installed inside the housing on both sides. A movable frame is slidably mounted on the slide rod. A spring is sleeved on the outside of the slide rod. One end of the spring is connected to a ramp block, and the other end is connected to the inner cavity of the housing. A telescopic component is installed on the outside of the movable frame, and a main abutment plate is installed below one side of the telescopic component. This design ensures that the grooving mechanism will not be blocked by protrusions during grooving, thus guaranteeing that the device can continue grooving at the same depth when encountering protrusions.

Description

Technical Field

[0001] This invention belongs to the field of wall groove cutting technology, specifically a device for cutting wall grooves in building construction. Background Technology

[0002] Wall trough cutting devices are used during building construction to create troughs in concrete walls for laying conduits. These devices typically operate at a fixed depth, controlled by a retaining plate. However, after construction, concrete walls often have uneven surfaces with protrusions. During the cutting process, the retaining plate can move and come into contact with these protrusions, hindering the device's progress. If the device is lifted past a protrusion, the trough depth at that location will be shallower than in other areas, resulting in inconsistent trough depths and affecting subsequent conduit installation.

[0003] Therefore, a device for opening grooves in the wall surface of a building is proposed to solve the above problems. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a device for opening grooves in the wall surface of a building.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for opening grooves in the wall surface of a building, comprising a housing, a grooving mechanism, a handle frame, and two depth control mechanisms;

[0006] The grooving mechanism is installed on the casing and can groove the wall surface; the handle bracket is installed on the casing; and the two depth control mechanisms are respectively located on both sides of the casing.

[0007] The depth control mechanism includes a slide rod, which is installed inside both sides of the housing. A movable frame is slidably mounted on the slide rod. A spring three is sleeved on the outside of the slide rod. One end of the spring three is connected to an inclined block, and the other end of the spring three is connected to the inner cavity of the housing. A telescopic assembly is installed on the outside of the movable frame. A main stop plate is installed below one side of the telescopic assembly. A limiting rod is movably sleeved inside the main stop plate. One end of the limiting rod is connected to a stop block, and the other end of the limiting rod is connected to a spring one. The other end of the spring one is connected to the inner wall of the main stop plate. Next, a fixed frame located outside the main abutment plate is connected to the outer side of the limiting rod. A push rod is sleeved on the outer side of the fixed frame. The push rod is movably sleeved inside the movable frame. A movable block is movably sleeved inside the movable frame. A second spring is connected to the bottom of the movable block. The bottom end of the second spring is connected to the bottom of the inner cavity of the movable frame. Inclined blocks that can abut against the push rod are connected to both sides above the movable block. A card seat located above the movable frame is connected to the outer side of the housing. A first card block is connected to the center above the movable block. The top of the first card block is movably locked inside the card seat.

[0008] Preferably, it further includes two auxiliary balancing mechanisms, which are respectively installed on both sides of the housing. Each auxiliary balancing mechanism includes a fixed box, which is installed on the outside of the housing. The fixed box has two air chambers, one at the top and one at the bottom, respectively. A piston rod is fitted inside the first air chamber, and one end of the piston rod extends to the outside and is connected to a connecting plate. The connecting plate is connected to the movable frame. An air filter is provided on the air port below the fixed box. A connecting pipe that connects the first air chamber and the second air chamber is connected to the outside of the fixed box.

[0009] Preferably, a piston block is fitted inside the second air chamber, a tension spring is connected to one side of the piston block, the other end of the tension spring is connected to the inner wall of the second air chamber, a spring four is connected to the other side of the piston block, and the other end of the spring four is connected to the second piston.

[0010] Preferably, an air box is connected to the outer side of the housing, the air box is connected to the fixed box and can communicate with the second air chamber, a piston rod is installed inside the air box, the bottom end of the piston rod passes through the air box and is connected to an auxiliary support plate, the top end of the piston rod is connected to a tension spring, the other end of the tension spring is connected to the inner wall of the air box, and an air filter is installed on the air hole on the lower outer side of the air box.

[0011] Preferably, mounting blocks are connected to both sides of the top of the fixed box. An electromagnetic element is installed inside the upper part of the mounting block. A locking block is movably fitted inside the mounting block. A magnetic plate is connected above the locking block. A spring is connected to the top of the magnetic plate. The top of the spring is connected to the inner wall of the mounting block. Two locking blocks are provided. The bottom of one locking block is movably engaged inside the piston block. The opposing surfaces of the two locking blocks are both arc surfaces.

[0012] Preferably, a pressure sensing element two that abuts against the movable frame is connected to the outer side of the housing, and a pressure sensing element one is connected to the outer side of the housing.

[0013] Preferably, the telescopic assembly includes a connecting rod connected to the outer side of the main abutment plate, a connecting block movably sleeved on the outside of the connecting rod is installed inside the movable frame, and a spring six is ​​sleeved on the outside of the connecting rod, one end of the spring six being connected to the connecting rod and the other end of the spring six being connected to the connecting block.

[0014] Preferably, an electromagnetic element two is installed on one side of the inside of the connecting block, a locking block three is movably sleeved inside the connecting block, a magnetic plate two is connected to one side of the locking block three, a spring seven is connected to the other side of the magnetic plate two, the other end of the spring seven is connected to the inner wall of the connecting block, and the other side of the locking block three is movably locked inside the connecting rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention, by setting up a movable frame and a locking block, allows the abutment block to abut and press against the protrusion when there is a protrusion on the wall, causing the abutment block and the limiting rod to move towards the main abutment plate. At the same time, the first spring is compressed. Due to the movement of the limiting rod, the push rod can be moved together by the fixed frame. Simultaneously, the movement of the push rod will push the inclined block, movable block, and locking block one to retract along the interior of the movable frame through the pressure of the inclined surface. At this time, the second spring is compressed, causing the locking block one to disengage from the locking seat, releasing the fixation of the movable frame and the locking seat. The limiting rod, pressed by the protrusion, will drive the main abutment plate and the movable frame to move along the sliding rod, causing the third spring to be compressed. This design ensures that the grooving mechanism will not be blocked by the protrusion during grooving, thus ensuring that the device can continue to groove at the same depth when encountering a protrusion.

[0017] By setting up piston rod two and auxiliary stop plate, as the moving frame moves, it can drive the connecting plate and piston rod one to move together. Due to the movement of piston rod one, the gas inside air chamber one can be introduced into the interior of air chamber two through the connecting pipe, causing piston block one to move under air pressure. At the same time, tension spring one is stretched and spring four is compressed. When the moving frame moves to abut against pressure sensing element one, an electromagnetic element one is energized, causing the locking block two, which is engaged with piston block two, to move upward under the magnetic attraction of magnetic plate one by electromagnetic element one. This causes the second locking block to disengage from the second piston block. At this point, under the restoring force of the fourth spring, the second piston block is pushed to move, and the gas inside the second air chamber is pushed into the air box. This causes the second piston rod to extend the auxiliary stop plate, and the second tension spring is stretched. Finally, the second piston block will abut against another second locking block, and the other second locking block will engage inside the second piston block to fix it. At this point, the auxiliary stop plate extends to contact the wall surface and temporarily replaces the main stop plate on that side, thereby maintaining the balance of the casing and ensuring that the grooving mechanism grooves at the same depth.

[0018] By setting a connecting rod and a connecting block, when the pressure sensing element 1 abuts against the moving frame, the pressure sensing element 1 is subjected to pressure, which energizes the electromagnetic element 2 and causes the magnetic plate 2 to move the locking block 3 inward towards the connecting block, releasing the locking block 3 from the connecting rod. At this time, the spring 7 is compressed. As the grooving mechanism continues to move, the protrusion will continue to squeeze the abutment block and the main abutment plate, and push the main abutment plate to drive the spring 6 to move along the inside of the connecting block. This causes the main abutment plate and the abutment block to contract upward under the squeezing action of the protrusion, eventually causing the abutment block to disengage from the protrusion. This allows the main abutment plate to be positioned above the protrusion, and allows the main abutment plate to pass over the protrusion as the housing moves. Finally, under the restoring action of the spring 3, the moving frame and the main abutment plate are reset, and the auxiliary abutment plate is retracted and reset. This allows the device to pass over the protrusion without affecting the grooving depth when encountering it during grooving, ensuring the consistency of the grooving depth and avoiding affecting the subsequent laying of conduits. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of the housing of the present invention;

[0021] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0022] Figure 4 This is a cross-sectional view of the main abutment plate of the present invention;

[0023] Figure 5 This is a cross-sectional view of the movable frame of the present invention;

[0024] Figure 6 This is a cross-sectional view of the card holder of the present invention;

[0025] Figure 7 This is a cross-sectional view of the fixing box of the present invention;

[0026] Figure 8 for Figure 7 A magnified schematic diagram of the local structure at point B;

[0027] Figure 9 This is a cross-sectional view of the connecting pipe of the present invention;

[0028] Figure 10 This is a cross-sectional view of the connecting block of the present invention;

[0029] Figure 11 for Figure 10 A magnified schematic diagram of the structure at point C.

[0030] In the diagram: 1. Housing; 2. Slotting mechanism; 3. Handle bracket; 4. Depth control mechanism; 41. Slide rod; 42. Moving frame; 43. Telescopic assembly; 431. Connecting rod; 432. Connecting block; 433. Spring six; 434. Electromagnetic component two; 435. Locking block three; 436. Magnetic plate two; 437. Spring seven; 44. Main abutment plate; 45. Limiting rod; 46. Abutment block; 47. Spring one; 48. Fixed frame; 49. Locking seat; 410. Movable block; 411. Spring two; 412. Inclined block; 413. Locking block one; 414. Push rod; 415. Pressure sensing element 1. Pressure sensing element 2; 4. Spring 3; 5. Auxiliary balancing mechanism; 51. Fixed box; 52. Air chamber 1; 53. Air chamber 2; 54. Air filter element 1; 55. Piston rod 1; 56. Connecting plate; 57. Piston block 1; 58. Tension spring 1; 59. Piston block 2; 510. Spring 4; 511. Piston rod 2; 512. Air filter element 2; 513. Auxiliary support plate; 514. Tension spring 2; 515. Air box; 516. Mounting block; 517. Electromagnetic element 1; 518. Locking block 2; 519. Magnetic plate 1; 520. Spring 5; 521. Connecting pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 11As shown, the present invention provides a wall groove opening device for building construction, including a housing 1, a grooving mechanism 2, a handle 3 and two depth control mechanisms 4;

[0033] The grooving mechanism 2 is installed on the housing 1 and can groove the wall surface; the handle bracket 3 is installed on the housing 1; and two depth control mechanisms 4 are respectively set on both sides of the housing 1.

[0034] The depth control mechanism 4 includes a slide rod 41, which is installed inside both sides of the housing 1. A movable frame 42 is slidably mounted on the slide rod 41. A spring 417 is sleeved on the outside of the slide rod 41. One end of the spring 417 is connected to the inclined block 412, and the other end of the spring 417 is connected to the inner cavity of the housing 1. A telescopic assembly 43 is installed on the outside of the movable frame 42. A main abutment plate 44 is installed below one side of the telescopic assembly 43. A limiting rod 45 is movably sleeved inside the main abutment plate 44. One end of the limiting rod 45 is connected to a stop block 46, and the other end of the limiting rod 45 is connected to a spring 47. The other end of the spring 47 is connected to the inner wall of the main abutment plate 44. A fixed frame 48 located outside the main support plate 44 is connected to the outer side of the 5. A push rod 414 is sleeved on the outer side of the fixed frame 48. The push rod 414 is movably sleeved inside the movable frame 42. A movable block 410 is movably sleeved inside the movable frame 42. A second spring 411 is connected to the bottom of the movable block 410. The bottom end of the second spring 411 is connected to the bottom of the inner cavity of the movable frame 42. Inclined blocks 412 that can abut against the push rod 414 are connected to both sides above the movable block 410. A card seat 49 located above the movable frame 42 is connected to the outer side of the housing 1. A first card block 413 is connected to the center above the movable block 410. The top of the first card block 413 is movably locked inside the card seat 49.

[0035] Using the above scheme: When there is a protrusion on the wall, the abutment 46 will abut and press against the protrusion, causing the abutment 46 and the limiting rod 45 to move towards the main abutment plate 44. At the same time, the spring 47 is compressed. Due to the movement of the limiting rod 45, the push rod 414 can be moved together through the fixed frame 48. At the same time, the movement of the push rod 414 will push the inclined block 412, the movable block 410 and the locking block 413 to retract along the inside of the moving frame 42 through the pressure of the inclined surface. At this time, the spring 411 is compressed, and the locking block 413 is disengaged from the locking seat 49, releasing the fixation of the moving frame 42 and the locking seat 49. The limiting rod 45 is pressed by the protrusion, which will drive the main abutment plate 44 and the moving frame 42 to move along the slide rod 41, causing the spring 417 to be compressed. Thus, the grooving mechanism 2 will not be blocked by the protrusion and stop when grooving.

[0036] like Figures 7 to 9As shown, it also includes two auxiliary balancing mechanisms 5, which are respectively installed on both sides of the housing 1. Each auxiliary balancing mechanism 5 includes a fixed box 51, which is installed on the outside of the housing 1. The fixed box 51 has two air chambers 53 and 52 respectively opened at the top and bottom inside. A piston rod 55 is installed inside the air chamber 52. One end of the piston rod 55 extends to the outside of the housing 61 and is connected to a connecting plate 56. The connecting plate 56 is connected to the moving frame 42. An air filter element 54 is installed on the air port below the fixed box 51. A connecting pipe 521 that connects the air chamber 52 and the air chamber 53 is connected to the outside of the fixed box 51.

[0037] Using the above scheme: As the moving frame 42 moves, the connecting plate 56 and the piston rod 55 can move together. Due to the movement of the piston rod 55, the gas inside the first air chamber 52 can be introduced into the second air chamber 53 through the connecting pipe 521, thereby increasing the air pressure inside the second air chamber 53.

[0038] like Figures 7 to 9 As shown, a piston block 57 is fitted inside the second air chamber 53. A tension spring 58 is connected to one side of the piston block 57. The other end of the tension spring 58 is connected to the inner wall of the second air chamber 53. A spring 4 510 is connected to the other side of the piston block 57. The other end of the spring 4 510 is connected to the second piston block 59.

[0039] Using the above scheme: when the air pressure inside the second air chamber 53 increases, the piston block 57 can be moved by the air pressure. At the same time, the tension spring 58 is stretched and the fourth spring 510 is compressed. Under the elastic recovery action of the fourth spring 510, the piston block 59 is pushed to move, thereby pushing the gas inside the second air chamber 53 into the air box 515.

[0040] like Figures 7 to 9 As shown, an air box 515 is connected to the outer side of the housing 1. The air box 515 is connected to the fixed box 51 and can communicate with the second air chamber 53. A piston rod 511 is installed inside the air box 515. The bottom end of the piston rod 511 passes through the air box 515 and is connected to an auxiliary support plate 513. A tension spring 514 is connected to the top end of the piston rod 511. The other end of the tension spring 514 is connected to the inner wall of the air box 515. An air filter element 512 is installed on the air hole on the lower outer side of the air box 515.

[0041] Using the above scheme: when the air pressure inside the air box 515 increases, the piston rod 511 can drive the auxiliary plate 513 to extend, and the tension spring 514 is stretched. When the auxiliary plate 513 extends to contact the wall, the auxiliary plate 513 can temporarily replace the main plate 44 on that side, thereby keeping the grooving mechanism 2 grooving at the same depth.

[0042] like Figure 3 , Figures 7 to 9As shown, mounting blocks 516 are connected to both sides of the top of the fixed box 51. An electromagnetic element 517 is installed inside the upper part of the mounting block 516. A locking block 518 is movably fitted inside the mounting block 516. A magnetic plate 519 is connected above the locking block 518. A spring 520 is connected to the top of the magnetic plate 519. The top of the spring 520 is connected to the inner wall of the mounting block 516. Two locking blocks 518 are provided. The bottom of one locking block 518 is movably locked inside the piston block 59. The opposing surfaces between the two locking blocks 518 are both arc surfaces.

[0043] Using the above scheme: When in use, the movable frame 42 will move to abut against the pressure sensing element 415. At this time, an electromagnetic element 517 is energized, causing the locking block 518, which is engaged with the piston block 59, to move upward under the magnetic attraction of the magnetic plate 519 by the electromagnetic element 517, and causing the locking block 518 to disengage from the piston block 59.

[0044] like Figure 3 , Figures 7 to 9 As shown, a pressure sensing element 416 that abuts against the movable frame 42 is connected to the outer side of the housing 1, and a pressure sensing element 415 is connected to the outer side of the housing 1.

[0045] Using the above scheme: When the moving frame 42 is reset and comes into contact with the pressure sensing element 416, an electromagnetic element 517 is energized, causing the locking block 518, which is engaged with the piston block 59, to move upward under the magnetic attraction of the magnetic plate 519 by the electromagnetic element 517, and causing the locking block 518 to disengage from the piston block 59.

[0046] like Figure 3 , Figures 9 to 11 As shown, the telescopic assembly 43 includes a connecting rod 431, which is connected to the outer side of the main abutment plate 44. A connecting block 432 that can be movably sleeved on the outside of the connecting rod 431 is installed inside the movable frame 42. A spring 433 is sleeved on the outside of the connecting rod 431. One end of the spring 433 is connected to the connecting rod 431, and the other end of the spring 433 is connected to the connecting block 432.

[0047] Using the above scheme: As the grooving mechanism 2 continues to move, the protrusion will continue to squeeze the abutment block 46 and the main abutment plate 44, and push the main abutment plate 44 to drive the spring six 433 to move along the inside of the connecting block 432, so that the main abutment plate 44 and the abutment block 46 contract upward under the squeezing action of the protrusion, the spring six 433 is compressed, and finally the abutment block 46 disengages from the abutment block, so that the main abutment plate 44 can be positioned above the protrusion, so that the main abutment plate 44 moves past the protrusion as the housing 1 moves.

[0048] like Figure 3 , Figures 9 to 11As shown, an electromagnetic element 434 is installed on one side inside the connecting block 432. A locking block 435 is movably sleeved inside the connecting block 432. A magnetic plate 436 is connected to one side of the locking block 435. A spring 437 is connected to the other side of the magnetic plate 436. The other end of the spring 437 is connected to the inner wall of the connecting block 432. The other side of the locking block 435 is movably locked inside the connecting rod 431.

[0049] Using the above scheme: When the pressure sensing element 415 abuts against the moving frame 42, the pressure sensing element 415 is subjected to pressure, causing the electromagnetic element 434 to be energized. This energizes the magnetic plate 436, causing the locking block 435 to retract inwards towards the connecting block 432, releasing the locking block 435 from the connecting rod 431. This allows the connecting rod 431 to move within the connecting block 432. (3 / 9 to 11)

[0050] Working principle and usage process of this invention:

[0051] When in use, the grooving mechanism 2 is powered on, and a groove can be made on the wall through the grooving mechanism 2. At this time, the main abutment plate 44 will abut against the wall and move as the grooving progresses.

[0052] When there is a protrusion on the wall, the abutment 46 will abut and press against the protrusion, causing the abutment 46 and the limiting rod 45 to move towards the main abutment plate 44. At the same time, the spring 47 is compressed. Due to the movement of the limiting rod 45, the push rod 414 can be moved together through the fixed frame 48. At the same time, the movement of the push rod 414 will push the inclined block 412, the movable block 410 and the locking block 413 to retract along the inside of the moving frame 42 through the pressure of the inclined surface. At this time, the spring 411 is compressed, and the locking block 413 is disengaged from the locking seat 49, releasing the fixation of the moving frame 42 and the locking seat 49. The limiting rod 45 is pressed by the protrusion, which will drive the main abutment plate 44 and the moving frame 42 to move along the slide rod 41, causing the spring 417 to be compressed. This ensures that the grooving mechanism 2 will not be blocked by the protrusion and stop when grooving, ensuring that the device can continue to grooving at the same depth when encountering a protrusion.

[0053] As the movable frame 42 moves, it can drive the connecting plate 56 and piston rod 55 to move together. Due to the movement of piston rod 55, the gas inside air chamber 52 can be introduced into air chamber 53 through connecting pipe 521, causing piston block 57 to move under air pressure. At the same time, tension spring 58 is stretched and spring 510 is compressed. When the movable frame 42 moves to abut against pressure sensing element 415, an electromagnetic element 517 is energized, causing the locking block 518, which is engaged with piston block 59, to move upward under the magnetic attraction of magnetic plate 519 by electromagnetic element 517. This causes the second locking block 518 to disengage from the second piston block 59. At this time, under the restoring force of the fourth spring 510, the second piston block 59 is pushed to move, and the gas inside the second air chamber 53 is pushed into the air box 515. This causes the second piston rod 511 to drive the auxiliary abutment plate 513 to extend, and the second tension spring 514 is stretched. Finally, the second piston block 59 will abut against another second locking block 518, and the other second locking block 518 will be locked inside the second piston block 59 to fix it. At this time, the auxiliary abutment plate 513 extends to contact the wall surface and temporarily replaces the main abutment plate 44 on this side, so that the grooving mechanism 2 can maintain grooving at the same depth.

[0054] Air filter element 2 512 and air filter element 1 54 can filter air while compensating for gas inside air chamber 1 52 and air box 515.

[0055] When pressure sensing element 415 abuts against the movable frame 42, pressure sensing element 415 is subjected to pressure, causing electromagnetic element 434 to be energized. This energizes electromagnetic element 434, which in turn causes magnetic plate 436 to move block 435 inward toward the connecting block 432, releasing the engagement between block 435 and connecting rod 431. At this time, spring 437 is compressed. As the slotting mechanism 2 continues to move, the protrusion will continue to press against block 46 and main abutment plate 44, pushing the main abutment plate 44 to move spring 433 along the interior of connecting block 432, causing the main abutment plate 44 to move inward along the interior of connecting block 432. The abutment plate 44 and the abutment block 46 contract upward under the squeezing action of the protrusion, and the spring six 433 is compressed, which eventually causes the abutment block 46 to disengage from the protrusion. This allows the main abutment plate 44 to be positioned above the protrusion, and the main abutment plate 44 to pass over the protrusion as the housing 1 moves. Finally, under the restoring action of the elastic force of the spring three 417, the moving frame 42 and the main abutment plate 44 are reset, and the auxiliary abutment plate 513 is retracted and reset. This allows the device to pass over the protrusion without affecting the groove depth when encountering it during grooving.

[0056] When the movable frame 42 resets, the connecting plate 56 and the piston rod 55 will reset together. When the movable frame 42 resets and comes into contact with the pressure sensing element 416, another electromagnetic element 517 is energized, causing the locking block 518, which is locked to the piston block 59, to move upward under the magnetic attraction of the electromagnetic element 517 on the magnetic plate 519, and causing the locking block 518 to disengage from the piston block 59. Under the restoring force of the tension spring 58, the piston block 59 and the piston block 57 are reset, so that the original locking block 518 continues to be locked in the piston block 59. Under the restoring force of the tension spring 514, the piston rod 511 and the auxiliary abutment plate 513 are reset.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for creating grooves in the wall surface of a building, characterized in that, It includes a housing (1), a slotting mechanism (2), a handle bracket (3), and two depth control mechanisms (4); The grooving mechanism (2) is installed on the housing (1) and can groove the wall surface; the handle bracket (3) is installed on the housing (1); and the two depth control mechanisms (4) are respectively set on both sides of the housing (1). The depth control mechanism (4) includes a slide rod (41), which is installed inside both sides of the housing (1). A movable frame (42) is slidably mounted on the slide rod (41). A spring three (417) is sleeved on the outside of the slide rod (41). One end of the spring three (417) is connected to the inclined block (412), and the other end of the spring three (417) is connected to the inner cavity of the housing (1). A telescopic component (43) is installed on the outside of the movable frame (42). A main abutment plate (44) is installed below one side of the telescopic component (43). A limiting rod (45) is movably sleeved inside the main abutment plate (44). One end of the limiting rod (45) is connected to an abutment block (46), and the other end of the limiting rod (45) is connected to a spring one (47). The other end of the spring one (47) is connected to the inner wall of the main abutment plate (44). The outer side of the limiting rod (45) is connected to a fixed frame (48) located outside the main abutment plate (44). A push rod (414) is sleeved on the outer side of the fixed frame (48). The push rod (414) is movably sleeved inside the movable frame (42). A movable block (410) is movably sleeved inside the movable frame (42). A second spring (411) is connected to the bottom of the movable block (410). The bottom end of the second spring (411) is connected to the bottom of the inner cavity of the movable frame (42). Inclined blocks (412) that can abut against the push rod (414) are connected to both sides above the movable block (410). A card seat (49) located above the movable frame (42) is connected to the outer side of the housing (1). A first card block (413) is connected to the center above the movable block (410). The top of the first card block (413) is movably locked inside the card seat (49). It also includes two auxiliary balancing mechanisms (5), which are respectively installed on both sides of the housing (1). Each auxiliary balancing mechanism (5) includes a fixed box (51), which is installed on the outside of the housing (1). The fixed box (51) has two air chambers (53) and one air chamber (52) respectively opened at the top and bottom inside. The first air chamber (52) is fitted with a piston rod (55), one end of which extends to the outside of (61) and is connected to a connecting plate (56). The connecting plate (56) is connected to the moving frame (42). An air filter element (54) is provided on the air port below the fixed box (51). A connecting pipe (521) that can connect the first air chamber (52) and the second air chamber (53) is connected to the outside of the fixed box (51). An air box (515) is connected to the outside of the housing (1). The air box (515) is connected to the fixed box (51) and can communicate with the second air chamber (53). A piston rod (511) is installed inside the air box (515). The bottom end of the piston rod (511) passes through the air box (515) and is connected to an auxiliary abutment plate (513). The top end of the piston rod (511) is connected to a tension spring (514). The other end of the tension spring (514) is connected to the inner wall of the air box (515). An air filter element (512) is installed on the air hole on the lower outside of the air box (515).

2. The wall groove cutting device for building construction according to claim 1, characterized in that: Piston block 1 (57) is fitted inside the second air chamber (53). One side of piston block 1 (57) is connected to tension spring 1 (58). The other end of tension spring 1 (58) is connected to the inner wall of the second air chamber (53). The other side of piston block 1 (57) is connected to spring 4 (510). The other end of spring 4 (510) is connected to piston block 2 (59).

3. The wall groove cutting device for building construction according to claim 2, characterized in that: Mounting blocks (516) are connected to both sides of the top of the fixed box (51). An electromagnetic element (517) is installed inside the upper part of the mounting block (516). A locking block (518) is movably fitted inside the mounting block (516). A magnetic plate (519) is connected above the locking block (518). A spring (520) is connected to the top of the magnetic plate (519). The top of the spring (520) is connected to the inner wall of the mounting block (516). Two locking blocks (518) are provided. The bottom of one locking block (518) is movably locked inside the piston block (59). The opposing surfaces between the two locking blocks (518) are both arc surfaces.

4. The wall groove cutting device for building construction according to claim 1, characterized in that: The outer side of the housing (1) is connected to a pressure sensing element two (416) that abuts against the moving frame (42), and the outer side of the housing (1) is connected to a pressure sensing element one (415).

5. The wall groove cutting device for building construction according to claim 1, characterized in that: The telescopic assembly (43) includes a connecting rod (431) connected to the outside of the main abutment plate (44). A connecting block (432) that can be movably sleeved on the outside of the connecting rod (431) is installed inside the movable frame (42). A spring six (433) is sleeved on the outside of the connecting rod (431). One end of the spring six (433) is connected to the connecting rod (431), and the other end of the spring six (433) is connected to the connecting block (432).

6. The wall groove cutting device for building construction according to claim 5, characterized in that: An electromagnetic element two (434) is installed on one side inside the connecting block (432). A locking block three (435) is movably sleeved inside the connecting block (432). A magnetic plate two (436) is connected to one side of the locking block three (435). A spring seven (437) is connected to the other side of the magnetic plate two (436). The other end of the spring seven (437) is connected to the inner wall of the connecting block (432). The other side of the locking block three (435) is movably locked inside the connecting rod (431).

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