Outer wall screw hole filling treatment device

The combined design of the arc-shaped filling plate and the electric telescopic rod drive solves the problem of the filling material being difficult to compact evenly in the screw hole, improving construction quality and efficiency and reducing the risk of leakage.

CN224281625UActive Publication Date: 2026-05-26CHINA CONSTR FIFTH ENG DIV CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR FIFTH ENG DIV CORP LTD
Filing Date
2025-07-07
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

When manually filling screw holes, the filling material is difficult to compact evenly inside the hole, resulting in poor filling quality and easy leakage.

Method used

A filling assembly consisting of multiple arc-shaped filling plates is used, with an adjustment mechanism to open and close the arc-shaped filling plates. Combined with an electric telescopic rod drive, this ensures that the filling material is evenly distributed and fully compacted inside the hole.

Benefits of technology

This method achieves uniform compaction of the filling material within the hole, avoiding voids and loosening, reducing the risk of leakage, and improving construction quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building construction auxiliary equipment, in particular to an outer wall screw hole filling treatment device which comprises a handheld operating rod, a filling assembly and an adjusting mechanism. The filling assembly comprises a plurality of arc-shaped filling plates distributed in the circumferential direction, and the arc-shaped filling plates are connected with the adjusting mechanism through connecting rods. An adjusting sleeve of the adjusting mechanism is sleeved on the operating rod and can axially slide, the outer wall of the adjusting sleeve is provided with an inclined guide sliding groove, and a sliding block at the end of the connecting rod slides in the sliding groove in a matched mode. According to the device, the arc-shaped filling plate is driven to be opened and closed in the radial direction through axial sliding of the adjusting sleeve, screw hole filling materials are compacted, operation is convenient and fast, the filling quality and efficiency are improved, and the problem that manual compaction is insufficient is solved.
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Description

Technical Field

[0001] This application relates to the field of auxiliary equipment technology for building construction, and in particular to a device for filling bolt holes in external walls. Background Technology

[0002] During building construction, a large number of through-wall bolts are used in the formwork support of exterior walls. After the formwork is removed, numerous bolt holes are left on the wall surface. If these bolt holes are not properly handled, they can easily become channels for rainwater leakage, affecting the stability and service life of the building structure. Therefore, filling these bolt holes is a critical procedure in building construction.

[0003] Currently, the filling of screw shaft holes in the industry is mostly done manually. Construction workers typically use trowels or small shovels to fill the holes with mortar and other filler materials, then manually compact them. However, this traditional method has significant technical problems: due to the small diameter and cylindrical shape of the screw shaft holes, it is difficult to ensure the filler material is evenly distributed during manual operation. In particular, the filler material deep within the hole often fails to be fully compacted, leading to voids and loosening. During later use, external factors such as temperature changes and rain erosion will cause these insufficiently compacted areas to gradually shrink and crack, eventually leading to leakage. Furthermore, during manual operation, the worker's arm cannot reach deep into the hole, resulting in uneven compaction of the filler material around the hole walls. Areas near the hole opening may be more compacted, while the compaction in the middle and deeper parts of the hole is poor, creating weak points in the filling quality.

[0004] Therefore, an external wall bolt hole filling treatment device is invented to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a device for filling bolt holes in external walls, so as to solve the problem that when filling bolt holes manually, the filling material is difficult to be evenly compacted inside the hole, resulting in poor filling quality and easy leakage.

[0006] This application provides a device for filling bolt holes in external walls, which adopts the following technical solution: it includes a handheld operating rod, a filling assembly disposed at one end of the operating rod, and an adjustment mechanism for controlling the opening and closing of the filling assembly; the filling assembly includes multiple arc-shaped filling plates evenly distributed around the circumference, and a connecting rod is provided between each arc-shaped filling plate and the adjustment mechanism; the adjustment mechanism includes an adjustment sleeve sleeved on the operating rod and slidable along the axial direction of the operating rod, and an inclined guide groove is provided on the outer wall of the adjustment sleeve corresponding to each connecting rod, and a slider adapted to the guide groove is provided at the end of the connecting rod away from the arc-shaped filling plate, and the slider is slidably connected in the guide groove.

[0007] Optionally, a plurality of compaction protrusions are fixedly connected to the outer side wall of each of the arc-shaped filling plates in an alternating manner.

[0008] Optionally, each of the arc-shaped filling plates has a guide protrusion fixedly connected to its inner side, and the guide protrusion can slide along the radial direction of the hand-held operating lever.

[0009] Optionally, the handheld operating lever is further provided with an auxiliary fixing frame at one end near the filling assembly. The auxiliary fixing frame includes multiple support arms distributed in a circle, and a suction cup is provided at the other end of the support arms.

[0010] Optionally, a sliding groove is provided on the inner side of the handheld operating lever, and a drive frame is provided in the sliding groove. An electric telescopic rod is provided on the side of the handheld operating lever away from the filling assembly. The output end of the electric telescopic rod is connected to the drive frame, and the drive frame is connected to the adjusting sleeve.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] 1. This utility model, by setting up a filling assembly composed of multiple arc-shaped filling plates, and cooperating with an adjustment mechanism to realize the opening and closing of the arc-shaped filling plates, can penetrate deep into the screw hole to compact the filling material, solving the problem that it is difficult for manual operation to penetrate deep into the hole for compaction, ensuring that the filling material is evenly distributed and fully compacted in the hole, effectively avoiding quality defects such as voids and loosening, and reducing the risk of leakage.

[0013] 2. The compaction protrusions on the outer wall of the arc-shaped filling plate are staggered, which can enhance the friction with the filling material during the compaction process, further improve the compaction effect, and make the filling material tightly bonded to the cavity wall.

[0014] 3. The radial sliding fit between the guide protrusion and the hand-held operating lever ensures the stability of the opening and closing movement of the arc-shaped filling plate and avoids affecting the compaction accuracy due to shaking.

[0015] 4. The support arm and suction cup of the auxiliary fixing frame can fix the device to the wall during operation, reduce shaking during hand operation, improve the stability and safety of construction, and are especially suitable for high-altitude operation scenarios.

[0016] 5. The structural design of the electric telescopic rod driving the adjusting sleeve realizes the automated control of the opening and closing action of the arc-shaped filling plate, reduces the labor intensity of construction personnel, and ensures the uniformity of operating force, further improving the filling quality and construction efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ;

[0018] Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ;

[0019] Figure 3 This is a top view of the device;

[0020] Figure 4 This is a cross-sectional schematic diagram of the overall structure of this device;

[0021] Figure 5 This is a schematic diagram of the handheld control lever of this device;

[0022] Figure 6 For this device Figure 1 Enlarged view of A in the middle;

[0023] The components include: 1. Handheld operating lever; 2. Filling assembly; 3. Adjustment mechanism; 4. Arc-shaped filling plate; 5. Connecting rod; 6. Adjustment sleeve; 7. Guide groove; 8. Slider; 9. Compacting protrusion; 10. Guide protrusion; 11. Support arm; 12. Suction cup; 13. Sliding groove; 14. Drive frame; and 15. Electric telescopic rod. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0025] Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 One embodiment shown is as follows: The device uses a handheld operating lever 1 as the main supporting component for the operator to hold and control. At one end of the handheld operating lever 1, a filling assembly 2 is assembled and connected. The filling assembly 2 consists of three circumferentially distributed arc-shaped filling plates 4 (with a 120° interval between adjacent arc-shaped filling plates 4). The curvature of the arc-shaped filling plates 4 is adapted to the inner wall curvature of common screw holes. A connecting rod 5 is welded and fixed to the center of the inner side of each arc-shaped filling plate 4. The connecting rod 5 is horizontally positioned and extends towards the axis of the handheld operating lever 1.

[0026] The adjusting sleeve 6 in the adjusting mechanism 3 is fitted onto the end of the hand-held operating lever 1 near the filling assembly 2. The inner wall of the adjusting sleeve 6 is clearance-fitted with the outer wall of the hand-held operating lever 1, allowing it to slide freely along the axial direction of the hand-held operating lever 1. On the outer wall of the adjusting sleeve 6, corresponding to the position of each connecting rod 5, an inclined guide groove 7 is provided, with the guide groove 7 forming an angle of 30°-45° with the axis of the adjusting sleeve 6. A cylindrical slider 8 is fixed to the end of the connecting rod 5 away from the arc-shaped filling plate 4 by bolts. The diameter of the slider 8 matches the width of the guide groove 7, and the slider 8 is embedded in the guide groove 7 and can slide along the length of the groove.

[0027] The implementation principle of the above embodiment is as follows: When it is necessary to control the opening and closing of the filling assembly 2, the operator pushes or pulls the adjusting sleeve 6 to move axially along the hand-held operating lever 1. Since the guide groove 7 is inclined, the axial movement of the adjusting sleeve 6 generates a radial component force on the slider 8 through the guide groove 7, forcing the slider 8 to slide along the guide groove 7 while driving the connecting rod 5 to make radial displacement. When the adjusting sleeve 6 moves towards the filling assembly 2, the guide groove 7 pushes the connecting rod 5 outward through the slider 8, causing the arc-shaped filling plate 4 to open outward synchronously until it contacts and compacts the filling material in the screw hole; when the adjusting sleeve 6 moves away from the filling assembly 2, the guide groove 7 pulls the connecting rod 5 inward through the slider 8, and the arc-shaped filling plate 4 closes accordingly, making it easy to remove from the screw hole. This structure, which achieves radial opening and closing through inclined plane transmission, can efficiently convert the axial force of the operator into the radial pressure of the arc-shaped filling plate 4, ensuring that the filling material is uniformly compacted. The operation process is labor-saving and convenient, solving the problem that traditional manual tools are difficult to apply stable pressure to materials deep in the cavity.

[0028] Reference Figure 1 , Figure 2 One embodiment shown is as follows: Multiple compaction protrusions 9 are fixedly connected to the outer wall of each arc-shaped filling plate 4 by welding or integral molding. These compaction protrusions 9 are not arranged neatly, but rather in a staggered distribution. The compaction protrusions 9 can be hemispherical, square, or other shapes, and their material can be the same as that of the arc-shaped filling plate 4 or a material with high hardness and wear resistance to ensure that they are not easily damaged during the compaction process.

[0029] The implementation principle of the above embodiment is as follows: When the arc-shaped filling plate 4 expands outward under the action of the adjusting mechanism 3 and the connecting rod 5 and comes into contact with the filling material in the screw hole, these staggered compaction protrusions 9 can increase the friction and contact area between the arc-shaped filling plate 4 and the filling material. The compaction protrusions 9 can more effectively transfer the pressure on the arc-shaped filling plate 4 to the filling material, so that the filling material is compacted more evenly and tightly in the screw hole, further improving the quality of the filling process and reducing the risk of leakage caused by insufficient filling.

[0030] Reference Figure 1 , Figure 4 One embodiment shown is as follows: A guide protrusion 10 is fixedly connected to the inner side (the side closest to the central axis of the handheld operating lever 1) of each arc-shaped filling plate 4 by welding, bolting, or integral molding. The guide protrusion 10 can be cuboid, cylinder, etc., and its length direction is consistent with the radial direction of the arc-shaped filling plate 4. A guide groove is provided on the handheld operating lever 1 at the position corresponding to the guide protrusion 10, along its radial direction. The guide protrusion 10 is embedded in the guide groove and can slide smoothly along the radial direction of the handheld operating lever 1 within the guide groove. For example, the guide groove can be an elongated groove opened on the wall of the handheld operating lever 1, and the size of the guide protrusion 10 is adapted to the guide groove, ensuring that the guide protrusion 10 can slide freely within the guide groove without excessive wobbling gaps.

[0031] The implementation principle of the above embodiment is as follows: When the adjusting mechanism 3 drives the arc-shaped filling plate 4 to open and close via the connecting rod 5, the guide protrusion 10 slides radially along the hand-held operating rod 1 within the guide groove, thus guiding and stabilizing the movement trajectory of the arc-shaped filling plate 4. This ensures that the arc-shaped filling plate 4 remains stable during the opening and closing process, without deviation or shaking, thereby guaranteeing the accuracy and stability of the compaction operation of the filling assembly 2 on the filling material in the screw hole, and improving the working performance and filling quality of the device.

[0032] Reference Figure 1 , Figure 3 One embodiment is shown where an auxiliary mounting bracket is attached to one end of the handheld operating lever 1 near the filling assembly 2 via welding, bolting, or other suitable connection methods. The auxiliary mounting bracket consists of multiple support arms 11, which are circumferentially distributed around the central axis of the handheld operating lever 1. For example, suppose there are three support arms 11, evenly spaced 120 degrees apart. One end of each support arm 11 is fixedly connected to the handheld operating lever 1, and the other end is connected to a suction cup 12. The suction cup 12 can be fixed to the end of the support arm 11 by adhesive bonding, snap-fitting, or other methods. The suction cup 12 is generally made of materials such as rubber with good adsorption properties, and its shape and size are designed according to actual usage requirements to ensure it can firmly adhere to the wall surface.

[0033] The implementation principle of the above embodiment is as follows: When using the device to fill the screw hole, the operator brings the auxiliary fixing frame close to the wall, so that the suction cup 12 at the end of the support arm 11 contacts and adheres to the wall. Multiple circumferentially distributed support arms 11 and suction cups 12 work together to provide additional support and fixing points for the device, reducing potential shaking when the operator holds the operating rod 1. Especially in high-altitude operations or situations requiring long-term stable operation, the auxiliary fixing frame can greatly improve the stability of the device and the safety of operation, allowing the filling component 2 to be more accurately aligned with the screw hole and to perform stable filling and compaction operations, thus improving construction efficiency and quality.

[0034] Reference Figure 4 , Figure 5 One embodiment shown is as follows: A sliding groove 13 is formed along the length of the inner side of the handheld operating lever 1 to accommodate the shape and sliding requirements of the drive frame 14. The drive frame 14 is installed within the sliding groove 13. The shape and size of the drive frame 14 match the sliding groove 13, allowing it to slide smoothly along the axial direction of the handheld operating lever 1 within the sliding groove 13. An electric telescopic rod 15 is fixedly installed on the side of the handheld operating lever 1 away from the filling assembly 2 via a mounting bracket or similar means. The output end of the electric telescopic rod 15 is connected to the drive frame 14 via bolts, welding, or other reliable connection methods. Simultaneously, the drive frame 14 is also connected to the adjusting sleeve 6 in the adjusting mechanism 3 in a suitable manner, for example, by bolting the drive frame 14 to the lug of the adjusting sleeve 6 to ensure synchronous movement between the two.

[0035] The implementation principle of the above embodiment is as follows: When it is necessary to control the action of the adjustment mechanism 3, the electric telescopic rod 15 is activated. The output end of the electric telescopic rod 15 performs telescopic movement. Since it is connected to the drive frame 14, it will drive the drive frame 14 to slide along the axial direction of the hand-held operating rod 1 within the sliding groove 13. Because the drive frame 14 is connected to the adjustment sleeve 6, the sliding of the drive frame 14 will further drive the adjustment sleeve 6 to move axially on the hand-held operating rod 1. The axial movement of the adjustment sleeve 6 can be converted into the radial movement of the connecting rod 5 through the cooperation of the guide groove 7 on its outer wall and the slider 8 at the end of the connecting rod 5, thereby driving the arc-shaped filling plate 4 to open and close. This method of driving the electric telescopic rod 15 realizes the automated control of the action of the adjustment mechanism 3. Compared with manual operation of the adjustment sleeve 6, it can more accurately control the adjustment force and speed, reduce the labor intensity of the operator, and improve the stability and consistency of the device operation, thereby improving the efficiency and quality of the external wall screw hole filling treatment.

[0036] The working principle of this device is as follows: First, the filling material is filled into the screw hole. The operator holds the operating rod 1 and inserts the filling component 2 into the hole. When compaction of the filling material is required, the adjusting sleeve 6 is pushed to slide axially along the operating rod 1. Due to the inclination of the guide groove 7 of the adjusting sleeve 6, the slider 8 slides within the groove, converting the axial movement of the sleeve into the radial movement of the connecting rod 5. The connecting rod 5 drives the arc-shaped filling plate 4 to expand radially outward, its outer side contacting and applying pressure to the filling material, completing the compaction. After compaction, the adjusting sleeve 6 is pulled in the opposite direction, the slider 8 slides in the opposite direction along the groove, and the connecting rod 5 drives the arc-shaped filling plate 4 to contract radially, allowing the device to be removed from the screw hole. This process achieves the opening and closing of the arc-shaped filling plate 4 through mechanical transmission, ensuring that the filling material is uniformly and densely compacted within the hole, improving the construction effect.

[0037] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for filling bolt holes in external walls, characterized in that: The device includes a handheld operating lever (1), a filling assembly (2) disposed at one end of the handheld operating lever (1), and an adjustment mechanism (3) for controlling the opening and closing of the filling assembly (2). The filling assembly (2) includes a plurality of arc-shaped filling plates (4) evenly distributed in a circle. Each arc-shaped filling plate (4) is connected to the adjustment mechanism (3) by a connecting rod (5). The adjustment mechanism (3) includes an adjustment sleeve (6) sleeved on the handheld operating lever (1) and slidable along the axial direction of the handheld operating lever (1). An inclined guide groove (7) is provided on the outer wall of the adjustment sleeve (6) corresponding to each connecting rod (5). A slider (8) adapted to the guide groove (7) is provided at the end of the connecting rod (5) away from the arc-shaped filling plate (4). The slider (8) is slidably connected in the guide groove (7).

2. The device for filling external wall bolt holes according to claim 1, characterized in that: Multiple compaction protrusions (9) are fixedly connected to the outer side wall of each of the arc-shaped filling plates (4) in an alternating manner.

3. The device for filling bolt holes in external walls according to claim 1, characterized in that: Each of the arc-shaped filling plates (4) has a guide protrusion (10) fixedly connected to its inner side, and the guide protrusion (10) can slide along the radial direction of the hand-held operating lever (1).

4. The device for filling bolt holes in external walls according to claim 1, characterized in that: The handheld operating lever (1) is also provided with an auxiliary fixing frame at one end near the filling component (2). The auxiliary fixing frame includes multiple support arms (11) arranged in a circular pattern, and a suction cup (12) is provided at the other end of the support arm (11).

5. The device for filling external wall bolt holes according to claim 1, characterized in that: The handheld operating lever (1) has a sliding groove (13) on its inner side, and a drive frame (14) is provided in the sliding groove (13). An electric telescopic rod (15) is provided on the side of the handheld operating lever (1) away from the filling component (2). The output end of the electric telescopic rod (15) is connected to the drive frame (14), and the drive frame (14) is connected to the adjusting sleeve (6).