Structural adhesive anchor bar drilling device

Abstract

The utility model discloses a structural adhesive anchor bar drilling device which comprises a shell, a motor, a speed reducer and a drill rod, the motor and the speed reducer are both installed in the shell, the motor is in transmission connection with the input end of the speed reducer, the drill rod is detachably connected with the output end of the speed reducer, and the drilling device further comprises a displayer, a controller and two laser range finders. The laser range finders are fixedly connected to the outer side of the shell, the two laser range finders and the drill rod are arranged in a triangular mode, the laser emitting direction of the laser range finders is parallel to the drill rod, the controller is connected with the laser range finders and the displayer, and the displayer outputs range finding data and the advancing speed of the drill rod. The utility model provides a drilling device which is not easy to drill obliquely and easy to control the drilling depth.

Description

Technical Field

[0001] This utility model relates to the field of drilling device technology, and in particular to a drilling device for structural adhesive anchor bars. Background Technology

[0002] Structural adhesive anchors are a widely used reinforcement technology in construction engineering. They primarily use high-performance structural adhesives (such as epoxy resin) to anchor steel bars (or bolts) into a concrete substrate, forming a reliable connection to achieve load transfer and reinforcement. The existing construction process for structural adhesive anchors involves drilling, hole cleaning, adhesive injection, and bar insertion. Drilling for structural adhesive anchors typically involves deep holes, requiring long drill rods. Workers using handheld drilling equipment rely heavily on experience to ensure the straightness and depth of the hole; inexperienced workers are prone to drilling crookedly, too shallowly, or too deeply. Utility Model Content

[0003] In order to solve the shortcomings of existing drilling devices that are prone to drilling off-center, drilling too deep or too shallow, this utility model proposes a drilling device that is not prone to drilling off-center and makes it easy to control the drilling depth.

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

[0005] A drilling device for structural adhesive anchor bars includes a housing, a motor, a reducer, and a drill rod. The motor and reducer are both installed in the housing, with the input end of the motor and reducer connected for transmission. The drill rod is detachably connected to the output end of the reducer. The drilling device also includes a display, a controller, and two laser rangefinders. The laser rangefinders are fixedly connected to the outside of the housing, and the two laser rangefinders and the drill rod are arranged in a triangular pattern. The laser emission direction of the laser rangefinders is parallel to that of the drill rod. The controller connects the laser rangefinders to the display, and the display outputs the distance measurement data and the forward speed of the drill rod.

[0006] With the above settings, the laser rangefinder emits a laser beam onto the substrate. Maintaining the laser position during drilling prevents drilling from going astray. In addition, the laser rangefinder can measure the drilling depth of the drill rod, making it easier to control the drilling depth. Furthermore, the display can show the drilling speed of the drill rod, preventing the drill rod from drilling into the reinforcing steel bars inside the substrate.

[0007] Furthermore, the housing includes a first housing part and a second housing part, with the reducer and motor respectively installed in the first housing part and the second housing part. The drilling device also includes a transmission assembly, an elastic element, and a guide anti-rotation assembly. The motor is connected to the input end of the reducer through the transmission assembly. The elastic element is installed between the first housing part and the second housing part. The guide anti-rotation assembly includes a guide rod and a guide sleeve. The guide sleeve is fixedly connected to the second housing part at the front and rear. One end of the guide rod is fixedly connected to the first housing part. The guide rod passes through the guide sleeve and extends to the rear side of the second housing part. The guide rod is provided with scale lines.

[0008] The above settings facilitate control of the drilling force, improve drilling stability, and further prevent drilling from going astray.

[0009] Furthermore, the elastic element is set as a spring, which is sleeved on the guide rod. The front end of the spring is connected to the first housing part, and the rear end of the spring is connected to the second housing part.

[0010] Furthermore, the transmission assembly includes a transmission shaft with a non-circular cross-section and a transmission sleeve adapted to the transmission shaft. The transmission shaft is slidably connected in the transmission sleeve and connected to the motor. The transmission sleeve is connected to the input end of the reducer.

[0011] With the above configuration, the motor can transmit torque forward through the transmission shaft and transmission sleeve. At the same time, when the first housing part and the second housing part approach or move away from each other, the transmission sleeve and the transmission shaft can slide relative to each other without interference.

[0012] Furthermore, heat dissipation holes are provided on the side of the second housing.

[0013] The above settings improve the motor's heat dissipation.

[0014] Furthermore, the display is fixedly mounted on the upper rear end of the second housing.

[0015] The above settings make it easier for workers to view the monitor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the drilling apparatus for an embodiment.

[0017] Figure 2 This is a side view of the drilling apparatus in an embodiment. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] like Figures 1 to 2 A drilling device for structural adhesive anchor bars includes a housing 3, a motor (not shown in the figure), a reducer (not shown in the figure), and a drill rod 4. The motor and reducer are both installed in the housing 3. The input end of the motor and reducer are connected for transmission. The drill rod 4 is detachably connected to the output end of the reducer. The drilling device also includes a display 5, a controller (not shown in the figure), and two laser rangefinders 6. The laser rangefinders 6 are fixedly connected to the outside of the housing 3. The two laser rangefinders 6 and the drill rod 4 are arranged in a triangle. The laser emission direction of the laser rangefinders 6 is parallel to that of the drill rod 4. The controller connects the laser rangefinders 6 and the display 5. The display 5 outputs the distance measurement data and the forward speed of the drill rod 4.

[0020] With the above settings, the laser rangefinder 6 emits a laser to the substrate. Maintaining the laser position during drilling can prevent drilling from going astray. In addition, the laser rangefinder 6 can measure the drilling depth of the drill rod 4, making it easier to control the drilling depth of the drill rod 4. Furthermore, the display 5 can display the drilling speed of the drill rod 4 to prevent the drill rod 4 from drilling into the reinforcing steel bars inside the substrate.

[0021] In this application, the motor is connected to the drill rod 4 via a reducer to increase the motor's output torque. A laser rangefinder 6 is mounted on the upper side of the front end of the housing 3, and another laser rangefinder 6 is mounted on the right side of the front end of the housing 3. During drilling, the worker holds the housing 3, and the front end of the drill rod 4 is pressed against the substrate to be drilled. The two laser rangefinders 6 operate, emitting lasers onto the substrate to form two light spots. The laser rangefinders 6 obtain initial distance measurement data, and the display 5 shows that the drilling depth is zero. The motor drives the drill rod 4 through the reducer, and the worker advances the drill rod 4 into the substrate. During drilling, the worker keeps an eye on the light spots, and the position of the light spots remains unchanged to prevent [drilling / drilling]. If drill rod 4 deviates from its intended path, the laser rangefinder 6 will move closer to the substrate, and the distance measurement data will decrease accordingly. For example, if the distance measurement data measured by laser rangefinder 6 decreases by 5cm, the display 5 will show a drilling depth of 5cm. The display 5 shows the drilling depth in real time to prevent the drilling depth from being too small or too large, so that the drilling device can drill to the required depth in one go. The drilling speed is calculated based on the change in drilling depth per unit time, and the display 5 shows the drilling speed. If the drilling speed suddenly approaches zero during normal advance, it means that the drilling resistance has suddenly increased, and it is possible that drill rod 4 has encountered the reinforcing steel in the substrate. The worker should stop drilling to prevent drill rod 4 from breaking the reinforcing steel.

[0022] In one implementation, the housing 3 includes a first housing part 31 and a second housing part 32. The reducer and the motor are respectively installed in the first housing part 31 and the second housing part 32. The drilling device also includes a transmission assembly 7, an elastic element 8 and a guide anti-rotation assembly 9. The motor is connected to the input end of the reducer through the transmission assembly 7. The elastic element 8 is installed between the first housing part 31 and the second housing part 32. The guide anti-rotation assembly 9 includes a guide rod 91 and a guide sleeve 92. The guide sleeve 92 is fixedly connected to the second housing part 32 from front to back. One end of the guide rod 91 is fixedly connected to the first housing part 31. The guide rod 91 passes through the guide sleeve 92 and extends to the rear side of the second housing part 32. The guide rod 91 is provided with scale lines.

[0023] The above settings facilitate control of the drilling force, improve drilling stability, and further prevent drilling from going astray.

[0024] The housing 3 of this application is a split design. The first housing part 31 supports the reducer, drill rod 4, and laser rangefinder 6. Two laser rangefinders 6 are mounted on the first housing part 31. The second housing part 32 supports the motor and controller and contains a battery to power the motor and controller. A handle is provided on the lower side of the second housing part 32 for easy gripping. When the worker holds the second housing part 32 and pushes it forward, the second housing part 32 transmits thrust to the first housing part 31 through the elastic element 8, thereby causing the drill rod 4 to drill forward. The elastic element 8 is compressed, and the first housing part 31 and the second housing part 32... With the distance shortened, the guide rod 91 is adapted to the guide sleeve 92, and the guide rod 91 can slide back and forth in the guide sleeve 92. The drilling device of this application is provided with four guide rods 91 and four guide sleeves 92 to have a better anti-rotation effect. The first housing part 31 and the second housing part 32 can approach or move away from each other, but the first housing part 31 and the second housing part 32 cannot rotate relative to each other, so that the motor in the second housing part 32 can continuously transmit torque to the reducer in the first housing part 31. During the drilling process of the drill rod 4, the first housing part 31 will not rotate with the drill rod 4. The guide rod 91 of this application has a scale line at its tail end. Before drilling begins, the tail end of the guide rod 91 protrudes from the rear side of the second housing part 32, and the rear side of the second housing part 32 corresponds to the zero scale. When drilling, the worker pushes the second housing part 32 forward, the elastic element 8 is compressed, the distance between the second housing part 32 and the first housing part 31 is reduced, and the protruding length of the tail end of the guide rod 91 becomes longer. The amount of compression of the elastic element 8 can be judged by the scale line, thereby judging the magnitude of the forward thrust acting on the second housing part 32 at this time. During drilling, the thrust is kept stable, thereby improving the stability of drilling.

[0025] In one implementation, the elastic element 8 is set as a spring, which is sleeved on the guide rod 91. The front end of the spring is connected to the first housing part 31, and the rear end of the spring is connected to the second housing part 32.

[0026] In this application, the spring extends forward and backward. When drilling, the spring is compressed, providing a forward thrust to the first housing portion 31.

[0027] In one implementation, the transmission assembly 7 includes a transmission shaft 71 with a non-circular cross-section and a transmission sleeve 72 adapted to the transmission shaft 71. The transmission shaft 71 is slidably connected in the transmission sleeve 72 and connected to the motor. The transmission sleeve 72 is connected to the input end of the reducer.

[0028] With the above configuration, the motor can transmit torque forward through the transmission shaft 71 and the transmission sleeve 72. At the same time, when the first housing part 31 and the second housing part 32 approach or move away from each other, the transmission sleeve 72 and the transmission shaft 71 can slide relative to each other without interfering.

[0029] The cross-section of the drive shaft 71 in this application is square. The drive shaft 71 is inserted into the drive sleeve 72. The motor drives the drill rod 4 through the drive shaft 71, the drive sleeve 72, and the reducer. The drive shaft 71 and the drive sleeve 72 are coaxially arranged and parallel to the guide rod 91. When moving forward, the drive shaft 71 and the drive sleeve 72 can slide relative to each other without interfering with the relative movement of the first housing part 31 and the second housing part 32.

[0030] As one implementation, the second housing part 32 is provided with heat dissipation holes 10 on its side.

[0031] The above settings improve the motor's heat dissipation.

[0032] As one implementation, the display 5 is fixedly mounted on the upper rear end of the second housing 32.

[0033] The above settings make it easier for workers to view monitor 5.

[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A drilling device for structural adhesive anchor bars, characterized in that, The device includes a housing, a motor, a reducer, and a drill rod. The motor and reducer are both installed in the housing. The input end of the motor and reducer are connected for transmission. The drill rod is detachably connected to the output end of the reducer. The drilling device also includes a display, a controller, and two laser rangefinders. The laser rangefinders are fixedly connected to the outside of the housing. The two laser rangefinders and the drill rod are arranged in a triangular pattern. The laser emission direction of the laser rangefinders is parallel to that of the drill rod. The controller connects the laser rangefinders to the display. The display outputs distance measurement data and the forward speed of the drill rod.

2. The structural adhesive anchor drilling device according to claim 1, characterized in that, The housing includes a first housing portion and a second housing portion. The reducer and the motor are respectively installed in the first housing portion and the second housing portion. The drilling device also includes a transmission assembly, an elastic element, and a guide anti-rotation assembly. The motor is connected to the input end of the reducer through the transmission assembly. The elastic element is installed between the first housing portion and the second housing portion. The guide anti-rotation assembly includes a guide rod and a guide sleeve. The guide sleeve is fixedly connected to the second housing portion from front to back. One end of the guide rod is fixedly connected to the first housing portion. The guide rod passes through the guide sleeve and extends to the rear side of the second housing portion. The guide rod is provided with scale lines.

3. The structural adhesive anchor drilling device according to claim 2, characterized in that, The elastic element is configured as a spring, which is sleeved on the guide rod. The front end of the spring is connected to the first housing part, and the rear end of the spring is connected to the second housing part.

4. The structural adhesive anchor drilling device according to claim 2, characterized in that, The transmission assembly includes a transmission shaft with a non-circular cross-section and a transmission sleeve adapted to the transmission shaft. The transmission shaft is slidably connected in the transmission sleeve and connected to the motor. The transmission sleeve is connected to the input end of the reducer.

5. The structural adhesive anchor drilling device according to claim 2, characterized in that, The second housing portion has heat dissipation holes on its side.

6. The structural adhesive anchor drilling device according to claim 2, characterized in that, The display is fixedly installed on the upper rear end of the second housing.

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