Concrete member scabbling device
By designing a combined structure of an insert rod, an elastic adjustment part and an annular protective part, the problem of lack of depth control of a pneumatic pick and hammer is solved, precise adjustment and safety protection of the chiseling depth are achieved, and the accuracy and safety of the chiseling operation are improved.
Patent Information
- Application Number
- CN202423109572.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In the existing technology, pneumatic picks and air hammers lack a mechanism to control the chiseling depth. Operators' hands are easily fatigued, causing the chiseling head to shift, increasing the risk of damage and affecting the chiseling effect and safety.
A concrete component chiseling device is designed, which adopts a combined structure of an insertion rod, an elastic adjustment part and an annular protective part. The elastic adjustment part is used to adjust the position of the insertion rod in the assembly tube to limit the chiseling depth, and the annular protective part is used to prevent the chiseling head from deflecting and colliding, thereby increasing safety.
It achieves precise control of the chiseling depth, improves the accuracy and consistency of the chiseling operation, reduces the risk of damage to the chiseling head, and provides a safe working environment.
Smart Images

Figure CN223478021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete component roughening technology, and in particular to a concrete component roughening device. Background Technology
[0002] In the field of construction engineering, concrete components are an important part of building structures. Their surface quality directly affects the bonding effect of subsequent construction materials and the stability of the overall structure. During the processing of concrete components, it is necessary to roughen their surface with pneumatic hammers to remove laitance, oil stains and other impurities from the concrete surface, exposing a rougher bottom surface, thereby improving the bonding force between the concrete and subsequent construction materials.
[0003] In the roughening operation of concrete components, operators need to manually hold pneumatic hammers to carry out the work. The roughening depth mainly depends on the operator's personal experience to control. However, current pneumatic hammers generally lack a mechanism to control the roughening depth. In addition, due to the long-term high-intensity operation of holding pneumatic hammers, the operator's hands are prone to fatigue, which may cause the roughening head to deviate from the roughening area of the concrete component, thereby increasing the risk of the roughening head colliding with other structures, and ultimately causing damage to the roughening head.
[0004] To address the aforementioned problems, this application proposes a device for roughening concrete components. Utility Model Content
[0005] Based on the technical problems existing in the background art, this utility model proposes a concrete component roughening device.
[0006] The present invention proposes a concrete component roughening device, which includes a pneumatic chisel and a roughening head installed at the end of the pneumatic chisel.
[0007] An assembly tube is installed on the outer periphery of the end of the pneumatic pick chisel. A rod is slidably inserted into the end of the assembly tube. An annular protective member is installed at the end of the rod away from the assembly tube, which is located at the end of the chisel head away from the pneumatic pick chisel. The annular protective member is used to enter and exit the chisel head and to protect it. An elastic adjusting member is installed on the assembly tube to adjust the sliding position of the rod inside the assembly tube.
[0008] Preferably, the elastic adjusting component includes a first slider, a spring, a second slider, and a screw. The first slider and the second slider are both slidably disposed within the assembly tube. The spring is disposed between the first slider and the second slider, and both ends of the spring are connected to the first slider and the second slider, respectively. One end of the insert rod is connected to the first slider. A threaded hole is provided at the end of the assembly tube away from the insert rod. The screw thread passes through the threaded hole and extends into the assembly tube. One end of the screw is rotatably connected to the side of the second slider away from the spring.
[0009] Preferably, the annular protective component includes an annular disc, which is installed at the end of the insert rod away from the assembly tube. The annular disc is located at the end of the chisel head away from the pneumatic chisel. A limiting channel is provided in the middle of the annular disc to allow the chisel head to enter and exit. Several circumferentially arranged ball bearings are rolledly connected to the edge of the annular disc away from the pneumatic chisel.
[0010] Preferably, a dust extraction pipe is inserted into the outer periphery of the annular disk, and one end of the dust extraction pipe is connected to the limiting channel. The end of the dust extraction pipe away from the annular disk is connected to the exhaust fan through a flexible hose.
[0011] Preferably, an installation tube is installed on the outer periphery of the end of the pneumatic pick, and a through assembly channel is opened in the installation tube. The end of the assembly tube away from the insertion rod is inserted into the assembly channel. A threaded opening is opened on the outer periphery of the end of the assembly tube away from the insertion rod. A bolt is threadedly connected to the installation tube, and the bolt is threadedly connected to the threaded opening.
[0012] Preferably, the number of assembly tubes, insertion rods and installation tubes is two sets, symmetrically arranged on the pneumatic chisel.
[0013] The above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0014] 1. Through the installation of the insert rod, elastic adjustment component, and annular protective component, during use, the position of the insert rod within the assembly tube can be adjusted by the elastic adjustment component according to the roughening requirements, thereby adjusting the distance between the annular protective component and the roughening head. Then, the annular protective component can be placed against the position of the concrete component that needs to be roughened, applying force to the pneumatic chisel, causing the roughening head on the pneumatic chisel to pass through the annular protective component to roughen the concrete component. The insert rod then slides within the assembly tube. Due to the action of the elastic adjustment component, the sliding depth of the insert rod can be limited, thus controlling the roughening depth of the concrete component. This structure, by adjusting the position of the insert rod within the assembly tube through the elastic adjustment component, can flexibly adjust the distance between the annular protective component and the roughening head, avoiding the problem of damage to the concrete component or poor roughening effect caused by roughening too deeply or too shallowly. It effectively solves the problem of operators relying on personal experience to control the roughening depth, improving the accuracy and consistency of roughening operations.
[0015] 2. Since the chisel head needs to pass through the annular protective component when chiseling concrete components, the annular protective component can protect the chisel head from direct collision with other structures when it shifts off-center. This structure provides a safe working environment for the chisel head through the annular protective component. Even if the operator's hands become fatigued due to prolonged work, causing the chisel head to shift off-center from the chiseling area of the concrete component, the annular protective component can still provide effective protection and prevent the chisel head from directly colliding with other structures. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a concrete component roughening device proposed in this utility model.
[0017] Figure 2 For this utility model Figure 1 A schematic diagram of a local structure.
[0018] Figure 3 For this utility model Figure 1 A schematic diagram of the planar structure of the assembly tube and insert rod.
[0019] Reference numerals: 1. Pneumatic chisel; 2. Chisel head; 3. Assembly tube; 4. Insert rod; 5. Elastic adjustment component; 51. First slider; 52. Spring; 53. Second slider; 54. Screw; 6. Annular protective component; 61. Annular disc; 62. Ball bearing; 7. Dust extraction pipe; 8. Mounting pipe; 9. Bolt. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0021] like Figure 1-3 As shown, the present invention proposes a concrete component roughening device, which includes a pneumatic chisel 1 and a roughening head 2 installed at the end of the pneumatic chisel 1.
[0022] In this embodiment, an assembly tube 3 is installed on the outer periphery of the end of the pneumatic chisel 1. An insert rod 4 is slidably inserted into the end of the assembly tube 3. An annular protective member 6 is installed at the end of the insert rod 4 away from the assembly tube 3, located at the end of the chisel head 2 away from the pneumatic chisel 1. The annular protective member 6 is used to protect the chisel head 2 from entering and exiting. The annular protective member 6 includes an annular disc 61, which is installed at the end of the insert rod 4 away from the assembly tube 3. The annular disc 61 is located at the end of the chisel head 2 away from the pneumatic chisel 1. A limiting channel is opened in the middle of the annular disc 61 to allow the chisel head 2 to enter and exit. Several circumferentially arranged ball bearings 62 are rolledly connected to the edge of the annular disc 61 away from the pneumatic chisel 1.
[0023] In this embodiment, an elastic adjusting member 5 for adjusting the sliding position of the insertion rod 4 within the assembly tube 3 is installed on the assembly tube 3. The elastic adjusting member 5 includes a first slider 51, a spring 52, a second slider 53, and a screw 54. The first slider 51 and the second slider 53 are slidably disposed within the assembly tube 3. The spring 52 is disposed between the first slider 51 and the second slider 53, and both ends of the spring 52 are respectively connected to the first slider 51 and the second slider 53. One end of the insertion rod 4 is connected to the first slider 51. A threaded hole is provided at the end of the assembly tube 3 away from the insertion rod 4. The screw 54 is threaded through the threaded hole and extends into the assembly tube 3. One end of the screw 54 is rotatably connected to the side of the second slider 53 away from the spring 52.
[0024] It should be noted that during use, the screw 54 can be rotated to push the second slider 53 to slide within the assembly tube 3, thereby pushing the first slider 51 to move the insert rod 4 within the assembly tube 3. This adjusts the distance between the annular disc 61 and the chisel head 2. The annular disc 61 can then be placed against the location on the concrete component that needs chiseling, applying force to the pneumatic chisel 1. This causes the chisel head 2 on the pneumatic chisel 1 to pass through the limiting channel opened within the annular disc 61 to chisel the concrete component, and the insert rod 4 then slides within the assembly tube 3. The spring 52 is compressed by the first slider 51. Under the action of the second slider 53, the sliding depth of the insert rod 4 can be limited, thus controlling the depth of roughening of the concrete component. The structure adjusts the position of the insert rod 4 in the assembly tube 3 by the elastic adjustment component 5, which can flexibly adjust the distance between the annular protective component 6 and the roughening head 2. This avoids the problem of damage to the concrete component or poor roughening effect caused by roughening too deep or too shallow. It effectively solves the problem of operators relying on personal experience to control the roughening depth and improves the accuracy and consistency of roughening operation.
[0025] During the roughening process, the ball bearings 62 on the annular disc 61 can roll on the concrete component, thereby effectively adjusting the roughening position.
[0026] Since the chisel head 2 needs to pass through the limiting channel inside the annular disc 61 when chiseling the concrete component, the annular disc 61 can protect the chisel head 2 from direct collision with other structures when it deviates from the chisel head 2 on the pneumatic chisel 1. This structure provides a safe working environment for the chisel head 2 through the setting of the annular protective part 6. During the chiseling process, even if the operator's hands become fatigued due to long-term operation, causing the chisel head 2 to deviate from the chiseling area of the concrete component, the annular protective part 6 can still play an effective protective role, preventing the chisel head 2 from directly colliding with other structures.
[0027] In a specific embodiment, a dust extraction pipe 7 is inserted into the outer periphery of the annular disk 61, and one end of the dust extraction pipe 7 is connected to the limiting channel, while the end of the dust extraction pipe 7 away from the annular disk 61 is connected to the exhaust fan through a flexible hose.
[0028] It should be noted that during the chiseling process, the dust extraction pipe 7 can be connected to the exhaust fan to extract the dust generated during chiseling, reducing the dust from flying around and creating a better working environment for the staff. This technology can be achieved with existing technology.
[0029] In a specific embodiment, an installation tube 8 is installed on the outer periphery of the end of the pneumatic pick 1. A through assembly channel is opened in the installation tube 8. The end of the assembly tube 3 away from the insertion rod 4 is inserted into the assembly channel. A threaded opening is opened on the outer periphery of the end of the assembly tube 3 away from the insertion rod 4. A bolt 9 is threadedly connected to the installation tube 8, and the bolt 9 is threadedly connected to the threaded opening.
[0030] It should be noted that in actual use, the assembly tube 3 can be disassembled and assembled by rotating the bolt 9 on the mounting tube 8 as needed.
[0031] In a specific embodiment, there are two sets of assembly tubes 3, insertion rods 4 and installation tubes 8, which are symmetrically arranged on the pneumatic chisel 1; the two sets of assembly tubes 3, insertion rods 4 and installation tubes 8 can enhance the structural strength of the installation of the annular protective component 6.
[0032] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A concrete component roughening device, comprising a pneumatic chisel (1) and a roughening head (2) installed at the end of the pneumatic chisel (1), characterized in that: An assembly tube (3) is installed on the outer periphery of the end of the pneumatic chisel (1). A rod (4) is slidably inserted into the end of the assembly tube (3). An annular protective member (6) is installed at the end of the rod (4) away from the assembly tube (3) and at the end of the chisel head (2) away from the pneumatic chisel (1). The annular protective member (6) is used to protect the chisel head (2) from entering and exiting. An elastic adjusting member (5) is installed on the assembly tube (3) to adjust the sliding position of the rod (4) inside the assembly tube (3).
2. The concrete component roughening device according to claim 1, characterized in that, The elastic adjustment component (5) includes a first slider (51), a spring (52), a second slider (53), and a screw (54). The first slider (51) and the second slider (53) are slidably disposed in the assembly tube (3). The spring (52) is disposed between the first slider (51) and the second slider (53), and both ends of the spring (52) are respectively connected to the first slider (51) and the second slider (53). One end of the insert rod (4) is connected to the first slider (51). The end of the assembly tube (3) away from the insert rod (4) is provided with a threaded hole. The screw (54) is threaded through the threaded hole and extends into the assembly tube (3). One end of the screw (54) is rotatably connected to the side of the second slider (53) away from the spring (52).
3. A concrete component roughening device according to claim 2, characterized in that, The annular protective component (6) includes an annular disc (61), which is installed at the end of the insert rod (4) away from the assembly tube (3). The annular disc (61) is located at the end of the chisel head (2) away from the pneumatic chisel (1). A limiting channel is provided in the middle of the annular disc (61) for the chisel head (2) to pass through and enter and exit. Several circumferentially arranged ball bearings (62) are rolled on the edge of the annular disc (61) away from the pneumatic chisel (1).
4. A concrete component roughening device according to claim 3, characterized in that, A dust extraction pipe (7) is inserted into the outer periphery of the annular disk (61), and one end of the dust extraction pipe (7) is connected to the limiting channel. The end of the dust extraction pipe (7) away from the annular disk (61) is connected to the exhaust fan through a hose.
5. A concrete component roughening device according to claim 1, characterized in that, An installation tube (8) is installed on the outer periphery of the end of the pneumatic pick (1). A through assembly channel is opened in the installation tube (8). The end of the assembly tube (3) away from the insertion rod (4) is inserted into the assembly channel. A threaded opening is opened on the outer periphery of the end of the assembly tube (3) away from the insertion rod (4). A bolt (9) is threadedly connected to the installation tube (8), and the bolt (9) is threadedly connected to the threaded opening.
6. A concrete component roughening device according to claim 1, characterized in that, The number of assembly tubes (3), insertion rods (4) and installation tubes (8) are two sets, symmetrically arranged on the pneumatic chisel (1).