Joint cutting device for building construction slotting
By designing an adjustable kerf depth mechanical structure and water cooling system, the problems of flexibility and blade life when cutting grooves of different depths in existing devices have been solved, achieving precise adjustment of kerf depth and efficient cooling of the blade.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-10
AI Technical Summary
Existing grooving equipment for building construction requires replacing blades when cutting grooves of different depths, resulting in poor flexibility and reduced blade lifespan due to high-temperature friction.
An adjustable kerf depth mechanical structure and cooling system were designed, including components such as push rods, side pull rods, and downward pressure connecting rods. The kerf depth is adjusted by the linkage of the push rods and side pull rods, and the blade temperature is reduced by a water cooling system consisting of a water inlet pipe head, a transmission pipe rack, and a cooling spray frame.
It enables flexible adjustment of the kerf depth and effective cooling of the blade, improving the adaptability of the device and the service life of the blade.
Smart Images

Figure CN223981957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of building construction especially relates to a building construction grooving's joint cutting device. BACKGROUND
[0002] The building construction grooving's joint cutting device is indispensable professional equipment in modern building construction, is mainly used in the accurate cutting operation of the concrete, pitch and other building material surface, and the device can form the slit that depth, width is uniform on all kinds of building materials through its cutting system, provides the operation condition for subsequent construction procedure.
[0003] Carrying out grooving joint cutting, the machine of different size blade needs to be replaced for the cutting of different depth slot, this causes extremely inflexible in cutting operation, and the adaptability of use is poor, and in the process of cutting, the high speed friction of blade can produce high temperature, and the deformation of blade is generated, influence the service life of blade. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the shortcomings in prior art, and provides a building construction grooving's joint cutting device, and the depth of joint cutting can be flexibly adjusted, and the service life of blade is improved.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A building construction grooving's joint cutting device, comprising:
[0007] Supporting support shell, the inside rotation of supporting support shell is connected with rotating rod, the outside fixed connection of rotating rod is provided with cutting knife, the right side fixed connection of supporting support shell is provided with drive motor, the drive end of drive motor is fixedly connected on the right side of rotating rod, the left side fixed connection of supporting support shell is provided with fixed plate, the top of fixed plate is fixedly connected with push rod, the output end of push rod is fixedly connected with upper push sliding block, both sides of upper push sliding block are all installed with lower pressure traction assembly, to realize the adjustment of cutting depth, the bottom of supporting support shell is attached with support base;
[0008] Water pipe head for supporting support shell top middle part, the bottom fixed connection of water pipe head is provided with lower exhaust pipe, the bottom fixed connection of lower exhaust pipe is provided with transmission pipe frame, the outside installation of transmission pipe frame is provided with lower exhaust traction assembly, to realize the cooling of blade cutting.
[0009] Further, the lower exhaust traction assembly includes transmission hose located on the outside of transmission pipe frame, the top of support base is fixedly connected with traction water pipe, the bottom of transmission hose is respectively fixedly connected on the top of traction water pipe, and the bottom of traction water pipe is fixedly connected with cooling spray frame.
[0010] Furthermore, the downward traction assembly includes side pull rods that rotate on both sides of the upward push slider. A side slider is slidably connected to the left side of the support housing. The outer sides of the side pull rods are rotatably connected to the inner sides of the side sliders. A downward pressing connecting rod is rotatably connected to the bottom end of each side slider. A fixed seat is fixedly connected to the left side of the support base. The bottom ends of the downward pressing connecting rods are rotatably connected to the inside of the fixed seat. The inner side of the upward push slider is slidably connected to the middle left side of the support housing, and the inner side of the side slider is slidably connected to the left side of the support housing.
[0011] Furthermore, a protective shell is fixedly connected to the right side of the supporting shell, and a traction handle is fixedly connected to the top of the protective shell.
[0012] Furthermore, a limiting post is fixedly connected to the top of the support base, and the outer side of the limiting post is slidably connected to the inside of the support housing.
[0013] Furthermore, both sides of the inner side of the support housing are fixedly connected with a blocking protection frame, and the outer side of the transmission tube rack passes through the inner side of the blocking protection frame.
[0014] Furthermore, the cooling spray frame is placed at an angle to increase the area for cooling the blade.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the push rod generates an upward pushing force on the upper push slider, thereby generating an upward force on the side pull rod, which in turn generates an inward pulling force on the side slider. The lower pressing connecting rod also flips, thereby generating a downward pressing force on the support base. The device can flexibly adjust the depth of the cut, improving the adaptability of the device in cutting.
[0017] 2. In this utility model, water is added to the inside through the water inlet pipe head, and the water is pulled into the inside of the transmission hose through the transmission pipe frame. The water flows into the inside of the traction water pipe and is sprayed onto the surface of the cutting blade through the cooling spray frame, thereby cooling the cutting blade, reducing the high temperature generated by the blade during cutting, and improving the service life of the blade. Attached Figure Description
[0018] Figure 1 This is an overall view of a grooving cutting device for building construction proposed in this utility model;
[0019] Figure 2 The left side view shows a cutting device for grooving in building construction proposed in this utility model;
[0020] Figure 3Internal view of the support shell of a grooving device for grooving in building construction proposed in this utility model;
[0021] Figure 4 This is an internal view of the support base of a grooving device for grooving in building construction, as proposed in this utility model.
[0022] Legend:
[0023] 1. Support housing; 2. Water inlet pipe head; 3. Traction handle; 4. Protective housing; 5. Support base; 6. Upward push slider; 7. Side pull rod; 8. Push rod; 9. Fixing plate; 10. Fixing seat; 11. Cutting blade; 12. Downward pressing connecting rod; 13. Side slider; 14. Limiting post; 15. Lower pipe; 16. Transmission pipe rack; 17. Blocking protection frame; 18. Transmission hose; 19. Rotating rod; 20. Traction water pipe; 21. Cooling spray frame; 22. Drive motor. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1-3 This utility model provides an embodiment of a grooving cutting device for building construction, comprising: a support housing 1 for support, a rotating rod 19 rotatably connected inside the support housing 1, a cutting blade 11 fixedly connected to the outside of the rotating rod 19, a drive motor 22 fixedly connected to the right side of the support housing 1, the drive end of the drive motor 22 fixedly connected to the right side of the rotating rod 19, a fixing plate 9 fixedly connected to the left side of the support housing 1, a push rod 8 fixedly connected to the top of the fixing plate 9, an upward push slider 6 fixedly connected to the output end of the push rod 8, downward traction components installed on both sides of the upward push slider 6 for adjusting the cutting depth, and a support base 5 attached to the bottom end of the support housing 1. The downward traction assembly includes side pull rods 7 that rotate on both sides of the upward push slider 6. A side slider 13 is slidably connected to the left side of the support housing 1. The outer sides of the side pull rods 7 are rotatably connected to the inner sides of the side sliders 13. Downward connecting rods 12 are rotatably connected to the bottom ends of the side sliders 13. A fixed seat 10 is fixedly connected to the left side of the support base 5. The bottom ends of the downward connecting rods 12 are rotatably connected to the inside of the fixed seat 10. The inner side of the upward push slider 6 is slidably connected to the middle left side of the support housing 1. The inner side of the side sliders 13 is slidably connected to the left side of the support housing 1. A protective housing 4 is fixedly connected to the right side of the support housing 1. A traction handle 3 is fixedly connected to the top of the protective housing 4. (Refer to...)Figure 4 The top of the support base 5 is fixedly connected to the limiting post 14, and the outside of the limiting post 14 is slidably connected to the inside of the support housing 1.
[0026] During the slit-cutting operation, the operator can activate the push rod 8 according to the required slit height, driving the upward sliding block 6 to move upward. At the same time, the side pull rods 7 on both sides apply an inward traction force to the side sliding block 13. The synchronous inward movement of the side sliding block 13 pushes the downward pressing connecting rod 12 to change its angle, thereby causing the bottom end of the downward pressing connecting rod 12 to apply a downward pushing force to the fixed seat 10, driving the support base 5 to move downward. This linkage mechanism reduces the exposed blade area of the cutting blade 11 accordingly, thereby achieving precise control of the slit depth. In addition, the multiple limiting posts 14 set in the support housing 1 effectively ensure the stability of the downward pressing movement of the support base 5 during the sliding process. This device achieves flexible adjustment of the slit depth through the above-mentioned precision mechanical structure, significantly improving the equipment's adaptability to different cutting needs.
[0027] Reference Figure 3 and Figure 4 A water inlet head 2 is used to support the top center of the housing 1. A lower drain pipe 15 is fixedly connected to the bottom end of the water inlet head 2. A transmission pipe frame 16 is fixedly connected to the bottom end of the lower drain pipe 15. A lower traction assembly is installed on the outside of the transmission pipe frame 16 to achieve cooling of the blade cutting. The lower traction assembly includes a transmission hose 18 located on the outside of the transmission pipe frame 16. A traction water pipe 20 is fixedly connected to the top end of the support base 5. The bottom ends of the transmission hose 18 are respectively fixedly connected to the top ends of the traction water pipe 20. A cooling spray frame 21 is fixedly connected to the bottom ends of the traction water pipe 20. A blocking protection frame 17 is fixedly connected to both sides of the inside of the support housing 1. The outside of the transmission pipe frame 16 passes through the inside of the blocking protection frame 17. The cooling spray frame 21 is placed at an inclined angle to expand the area for cooling the blade.
[0028] During the cutting operation, after the water supply pipe is connected to the water inlet head 2, the water pressure increases as the pipe diameter narrows when it flows through the lower drain pipe 15. Then, it enters the transmission hose 18 through the transmission pipe rack 16. The water continues to flow downward and is transported to the cooling spray frame 21 through the traction water pipe 20. It is then sprayed out at an inclined angle. The sprayed water directly acts on the side of the cutting blade 11, achieving effective cooling. Due to the water pressure, the water flows tightly against the surface of the cutting blade 11 and flows downward. This process not only achieves continuous cooling of the blade but also washes away debris in the kerf. This cooling system has a dual function: on the one hand, it significantly improves the convenience of the cutting operation, and on the other hand, it effectively reduces the working temperature of the blade, thereby extending the service life of the cutting blade and ensuring the stability and efficiency of the cutting process.
[0029] Working principle: When performing slit cutting, according to the required slit height, the push rod 8 is activated to push the upper slider 6 upward, and the side pull rods 7 on both sides simultaneously generate an inward pulling force on the side sliders 13. The mutual retraction of the side sliders 13 generates an inward pushing force on the lower pressing rod 12, thereby changing the angle of the lower pressing rod 12. This causes the bottom end of the lower pressing rod 12 to generate a downward pushing force on the fixed base 10, thereby moving the support base 5 downward. The exposed blade area of the cutting blade 11 decreases, thus reducing the slit depth. Furthermore, the multiple limiting posts 14 slide inside the support housing 1. This ensures the stability of the support base 5 under pressure. During the cutting process, the water supply pipe is connected to the inside of the water inlet pipe 2, and the water is transmitted downwards. The narrower lower pipe 15 increases the water pressure, which is then transmitted through the transmission pipe frame 16 to the inside of the transmission hose 18. The water flows downwards into the inside of the traction water pipe 20 and is discharged at an angle through the cooling spray frame 21. The water flows into the side of the cutting blade 11, thereby cooling the outside of the cutting blade 11. The water flow adheres to the outside of the cutting blade 11 due to the water pressure and flows downwards. The high-speed water flow carries out the debris inside the gap, thereby further improving the convenience of cutting.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A joint cutting device for use in the construction industry for cutting slots, characterised in that, Include: Supporting support shell (1), the inside of the support shell (1) is rotatably connected with a rotating rod (19), the outside of the rotating rod (19) is fixedly connected with a cutting knife (11), the right side of the support shell (1) is fixedly connected with a drive motor (22), the drive end of the drive motor (22) is fixedly connected to the right side of the rotating rod (19), the left side of the support shell (1) is fixedly connected with a fixed plate (9), the top end of the fixed plate (9) is fixedly connected with a push rod (8), the output end of the push rod (8) is fixedly connected with an upper push sliding block (6), the two sides of the upper push sliding block (6) are both mounted with a lower pressing traction assembly, so as to realize the adjustment of the cutting depth, the bottom end of the support shell (1) is attached with a support base (5); The water pipe head (2) for supporting the top middle part of the support shell (1), the bottom end of the water pipe head (2) is fixedly connected with a lower discharge pipe (15), the bottom end of the lower discharge pipe (15) is fixedly connected with a transmission pipe rack (16), the outer side of the transmission pipe rack (16) is mounted with a lower discharge traction assembly, so as to realize the cooling of the blade cutting.
2. A joint cutting device for use in the construction industry for cutting slots in a substrate according to claim 1, characterised in that: The lower discharge traction assembly includes a transmission hose (18) located on the outer side of the transmission pipe rack (16), the top end of the support base (5) is fixedly connected with a traction water pipe (20), the bottom end of the transmission hose (18) is respectively fixedly connected to the top end of the traction water pipe (20), and the bottom end of the traction water pipe (20) is fixedly connected with a cooling spray frame (21).
3. A joint cutting device for use in the construction industry for cutting slots in a surface according to claim 1, characterised in that: The lower pressing traction assembly includes a side pull rod (7) located on the two sides of the upper push sliding block (6) and rotating, the left side of the support shell (1) is slidably connected with a side sliding block (13), the outer side of the side pull rod (7) is respectively rotatably connected to the inner side of the side sliding block (13), the bottom end of the side sliding block (13) is rotatably connected with a lower pressing connecting rod (12), the left side of the support base (5) is fixedly connected with a fixed seat (10), the bottom end of the lower pressing connecting rod (12) is respectively rotatably connected to the inside of the fixed seat (10), the inner side of the upper push sliding block (6) is slidably connected to the left middle part of the support shell (1), and the inner side of the side sliding block (13) is slidably connected to the left side of the support shell (1).
4. A joint cutting device for use in the construction industry for cutting slots according to claim 1, characterised in that: The right side of the support shell (1) is fixedly connected with a protection shell (4), and the top end of the protection shell (4) is fixedly connected with a traction handle (3).
5. A joint cutting device for use in the construction industry for cutting slots according to claim 1, characterised in that: The top end of the support base (5) is fixedly connected with a limiting column (14), and the outer side of the limiting column (14) is respectively slidably connected to the inside of the support shell (1).
6. A joint cutting device for use in the construction industry for cutting slots in a surface according to claim 1, characterised in that: The inside of the support shell (1) is fixedly connected with a blocking protection frame (17) on both sides, and the outer side of the transmission pipe rack (16) penetrates the inner side of the blocking protection frame (17) respectively.
7. A joint cutting device for use in the construction industry for cutting slots in a surface according to claim 2, wherein: The cooling spray frame (21) is placed at an inclined angle, so as to expand the area of the blade cooling.