A drillable expansion bolt installation tool

Abstract

This utility model discloses a drillable expansion bolt installation tool, relating to the field of hand tool technology. The drillable expansion bolt installation tool includes an electric impact drill body, a rear handle, and a connector. A limiting component is provided on the electric impact drill body, comprising a mounting base, a front handle, a mounting block, and two protective shells. The upper end of the front handle is fixedly mounted on the lower surface of the mounting block. By rotating the threaded sleeve in the limiting component in the opposite direction, the threaded rod rotates in the opposite direction, causing the limiting block to disengage from the second limiting block groove, thus releasing the mounting block from its fixation. Then, the mounting block can be removed from the mounting block groove of the mounting base, completing the disassembly operation. This facilitates adjustment or maintenance according to different operational needs. The disassembly of the front handle is simple and quick, avoiding the need for welding the front handle and the requirement to return the electric impact drill to the factory for disassembly and repair if worn parts need to be replaced. This effectively improves the practicality and flexibility of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of manual tool technology, and in particular to a drillable expansion bolt installation tool. Background Technology

[0002] In the fields of building decoration and equipment installation, electric impact drills are widely used as the core tool for installing expansion bolts in drilling operations on hard materials such as concrete and brick walls. Taking the decoration of high-rise residential buildings as an example, the number of expansion bolts installed in a single household can reach hundreds. The electric impact drill is used for more than 6 hours a day on average. The front handle is a key component for the operator to hold and exert force. It not only undertakes the functions of stable operation and precise guidance, but also needs to effectively buffer the reaction force of up to 5-8 N·m and high-frequency vibration when the tool is running. Its performance directly affects the construction efficiency and operating comfort.

[0003] However, most mainstream electric impact drills on the market currently use welded or one-piece molded front handles. In subway tunnel equipment installation projects, construction workers need to use electric impact drills in damp and narrow tunnel environments. Due to the harsh working environment, the handle surface is easily corroded by mud and oil, and the rubber anti-slip layer will show severe wear on average every 2-3 months. However, because the front handle is fixed by welding, if worn parts need to be replaced, the electric impact drill needs to be returned to the factory for disassembly and repair. The cost of a single repair is as high as 30%-40% of the original price of the equipment, and the repair cycle is as long as 7-10 days, which seriously affects the progress of the project. In commercial complex decoration projects, the drilling requirements vary significantly at different construction stages, but the one-piece molded handle cannot be replaced. The construction party has to purchase multiple impact drills with different handle configurations, which increases the equipment purchase cost by more than 40%, and the idle equipment occupies a lot of storage space, thereby reducing the practicality of the equipment. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a drilling expansion bolt installation tool. This tool addresses the issue that most front handles are welded or integrally molded. In subway tunnel equipment installation projects, construction workers need to use electric impact drills in damp and narrow tunnel environments. Due to the harsh working environment, the handle surface is easily corroded by mud and oil, and the rubber anti-slip layer will show severe wear on average every 2-3 months. However, because the front handle is fixed by welding, if worn parts need to be replaced, the electric impact drill needs to be returned to the factory for disassembly and repair. The cost of a single repair is as high as 30%-40% of the original price of the equipment, and the repair cycle is as long as 7-10 days, which seriously affects the progress of the project. In commercial complex decoration projects, the drilling requirements vary significantly at different construction stages, but the integrally molded handle cannot be replaced. The construction party has to purchase multiple impact drills with different handle configurations, which increases the equipment purchase cost by more than 40%, and the idle equipment occupies a lot of storage space, thus reducing the practicality of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drillable expansion bolt installation tool, comprising an electric impact drill body, a rear handle, and a connector, wherein a limit component is provided on the electric impact drill body;

[0006] The limiting assembly includes a mounting base, a front handle, a mounting block, and two protective shells. The upper end of the front handle is fixedly mounted on the lower surface of the mounting block. The mounting base is fixedly mounted on the outer wall of the front end of the electric impact drill body. The two protective shells are respectively fixedly mounted on the outer walls of the two sides of the mounting base. The mounting base has a mounting block groove on its lower surface.

[0007] The inner wall of the mounting block groove is provided with four conical block grooves. The outer walls of the two protective shells are rotatably connected with rotating threaded rod sleeves. The inner walls on both sides of the mounting block groove are provided with first limiting block grooves. The interior of the two first limiting block grooves is slidably connected with limiting blocks. The outer walls on both sides of the upper end of the mounting block are provided with second limiting block grooves. The interior of the two first limiting block grooves is provided with rotating threaded rods.

[0008] Preferably, the upper outer wall of the mounting block is slidably connected to the inside of the mounting block groove;

[0009] Among them, the outer walls of the four conical blocks on the upper outer wall of the mounting block are slidably connected to the interior of the corresponding conical block grooves.

[0010] Preferably, the ends of the two limiting blocks near the second limiting block grooves both slide into the interior of the mounting block groove and are respectively slidably connected to the interior of the corresponding second limiting block grooves;

[0011] The interiors of the two protective shells are respectively connected to the interiors of the corresponding first limiting block grooves.

[0012] Preferably, the ends of the two rotating threaded rods near the limiting block are respectively rotatably connected to the outer wall of the corresponding limiting block, and the ends of the two rotating threaded rod sleeves near the protective shell are rotatably extended into the interior of the protective shell;

[0013] Among them, the outer wall of the end of the two rotating threaded rods away from the limit block is respectively connected to the internal thread of the corresponding rotating threaded rod sleeve.

[0014] Preferably, the rear handle is fixedly installed on the outer wall of the rear end of the electric impact drill body, and the electric impact drill body is electrically connected to the rear handle;

[0015] The connector is fixedly installed at the front end of the electric impact drill body.

[0016] Preferably, the electric impact drill body is electrically connected to the connector, and a power connection cable interface is provided on the outer wall of the rear end of the electric impact drill body.

[0017] The outer wall of the rear grip is fitted with a protective cover.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This drillable expansion bolt installation tool uses a reverse rotation of the threaded rod sleeve in the limiting assembly to drive the threaded rod to rotate in the opposite direction, causing the limiting block to exit from the second limiting block slot, thus releasing the fixing of the mounting block. Then, the mounting block can be removed from the mounting block slot of the mounting base, completing the disassembly operation. This facilitates adjustment or maintenance according to different operational needs. This method of disassembling the front handle is simple and quick, avoiding the need for welding the front handle. If worn parts need to be replaced, the electric impact drill needs to be returned to the factory for disassembly and repair, effectively improving the practicality and flexibility of the equipment. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the front grip of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the mounting base of this utility model;

[0024] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0025] Reference numerals: 1. Main body of electric impact drill; 2. Protective sleeve; 3. Rear handle; 4. Rotating threaded rod sleeve; 5. Protective shell; 6. Mounting base; 7. Connector; 8. Front handle; 9. Rotating threaded rod; 10. Limiting block; 11. First limiting block groove; 12. Second limiting block groove; 13. Mounting block; 14. Conical block groove; 15. Mounting block groove. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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 this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a drillable expansion bolt installation tool, including an electric impact drill body 1, a rear handle 3 and a connector 7;

[0031] A limit component is provided on the main body 1 of the electric impact drill;

[0032] The limiting assembly includes a mounting base 6, a front handle 8, a mounting block 13, and two protective shells 5. The upper end of the front handle 8 is fixedly mounted on the lower surface of the mounting block 13. The mounting base 6 is fixedly mounted on the outer wall of the front end of the electric impact drill body 1. The two protective shells 5 are respectively fixedly mounted on the outer walls of the two sides of the mounting base 6. A mounting block groove 15 is formed on the lower surface of the mounting base 6. The upper outer wall of the mounting block 13 is slidably connected to the inside of the mounting block groove 15. Four conical block grooves 14 are formed on the inner wall of the mounting block groove 15. The outer walls of the four conical blocks on the upper outer wall of the mounting block 13 are slidably connected to the inside of the corresponding conical block grooves 14. Rotating threaded rod sleeves 4 are rotatably connected to the outer walls of the two protective shells 5. First limiting block grooves 11 are formed on the inner walls of the two sides of the mounting block groove 15. The inside of the two first limiting block grooves 11... Each of the two limiting blocks 10 is slidably connected to the mounting block 15. The upper sides of the mounting block 13 are provided with second limiting block grooves 12. The ends of the two limiting blocks 10 near the second limiting block grooves 12 are slidably extended into the interior of the mounting block groove 15 and are slidably connected to the interior of the corresponding second limiting block grooves 12. The interiors of the two protective shells 5 are respectively connected to the interiors of the corresponding first limiting block grooves 11. The interiors of the two first limiting block grooves 11 are each provided with a rotating threaded rod 9. The ends of the two rotating threaded rods 9 near the limiting blocks 10 are rotatably connected to the outer wall of the corresponding limiting blocks 10. The ends of the two rotating threaded rod sleeves 4 near the protective shells 5 are rotatably extended into the interior of the protective shells 5. The outer walls of the ends of the two rotating threaded rods 9 away from the limiting blocks 10 are respectively threadedly connected to the interior of the corresponding rotating threaded rod sleeves 4.

[0033] The rear handle 3 is fixedly installed on the outer wall of the rear end of the electric impact drill body 1. The electric impact drill body 1 is electrically connected to the rear handle 3. The connector 7 is fixedly installed on the front end of the electric impact drill body 1. The electric impact drill body 1 is electrically connected to the connector 7. A power connection cable interface is provided on the outer wall of the rear end of the electric impact drill body 1. A protective sleeve 2 is installed on the outer wall of the rear handle 3.

[0034] Furthermore, when using this device, firstly, the upper end of the mounting block 13 is inserted into the mounting block groove 15 of the mounting base 6. The four conical blocks at the upper end of the mounting block 13 slide against the conical block groove 14 on the inner wall of the mounting block groove 15, achieving initial positioning of the mounting block 13 on the mounting base 6. Then, the rotating threaded rod sleeve 4 on the outer wall of the protective shell 5 is rotated. The threads inside the rotating threaded rod sleeve 4 engage with the rotating threaded rod 9, causing the rotating threaded rod 9 to rotate. When the rotating threaded rod 9 rotates, it pushes the limiting block 10 to slide within the first limiting block groove 11. The movement causes the limiting block 10 to slide and extend into the mounting block groove 15 near one end of the second limiting block groove 12, and insert into the second limiting block groove 12 on both sides of the upper end of the mounting block 13, thereby firmly fixing the mounting block 13 onto the mounting base 6, completing the installation of the limiting component. At this time, the operator can hold the front handle 8 and the rear handle 3 to stably control the position and operating direction of the electric impact drill body 1, install the matching drill bit on the connector 7, connect the power supply through the power connection cable interface, start the electric impact drill body 1, and the electric impact... The electric impact drill body 1 transmits power to the connector 7 and the drill bit. The operator holds the front handle 8 and the rear handle 3 to stabilize and control the tool, aligning the drill bit with the desired drilling position for drilling operations. During drilling, the front handle 8 and the rear handle 3 of the limiting assembly cooperate to help the operator stabilize the tool and ensure drilling accuracy. After drilling is completed, the drill bit on the connector 7 is replaced with an expansion bolt mounting head. The expansion bolt is inserted into the drill hole, and the electric impact drill body 1 is restarted. The electric impact drill body 1 transmits power through the connector 7 and the expansion bolt mounting head... The expansion bolt is driven into the drilled hole. During the installation process, the operator continues to stabilize the tool by holding the front handle 8 and the rear handle 3 to ensure that the expansion bolt is installed in place. When it is necessary to adjust or remove the front handle 8, the threaded rod sleeve 4 is rotated in the opposite direction, which drives the threaded rod 9 to rotate in the opposite direction, so that the limiting block 10 is removed from the second limiting block groove 12, releasing the fixing of the mounting block 13. Then, the mounting block 13 is removed from the mounting block groove 15 of the mounting base 6, and the disassembly operation is completed, which is convenient for adjustment or maintenance according to different operation requirements.

[0035] By rotating the threaded sleeve 4 in the reverse direction in the limiting assembly, the threaded rod 9 is driven to rotate in the reverse direction, causing the limiting block 10 to exit from the second limiting block groove 12, thus releasing the fixing of the mounting block 13. Then, the mounting block 13 can be removed from the mounting block groove 15 of the mounting base 6, completing the disassembly operation. This facilitates adjustment or maintenance according to different work requirements. This method of disassembling the front handle 8 is simple and quick, avoiding the need for welding fixing of the front handle 8. If worn parts need to be replaced, the electric impact drill needs to be returned to the factory for disassembly and repair, effectively improving the practicality and flexibility of the equipment.

[0036] Structural Description: (Electric Impact Drill Body 1: The electric impact drill body 1 is the core power component of the entire installation tool. It provides power for drilling and installing expansion bolts. The front outer wall is used to install the mounting seat 6 of the limiting component. The rear outer wall is fixedly installed with the handle 3 and is provided with a power connection interface for connecting to the power supply to power the equipment. The front end is also fixedly installed with a connector 7. The electric impact drill body 1 is electrically connected to the connector 7. The connector 7 can be replaced with a suitable drill bit or expansion bolt installation head according to different operation requirements.)

[0037] The rear handle 3 is fixedly installed on the outer wall of the rear end of the electric impact drill body 1 and is electrically connected to the electric impact drill body 1. It plays the role of controlling the operation of the electric impact drill body 1. The outer wall is equipped with a protective sleeve 2 to increase the comfort and anti-slip properties when holding the tool, making it convenient for operators to hold the tool stably for a long time.

[0038] The connector 7 is fixedly installed at the front end of the electric impact drill body 1 and is electrically connected to the electric impact drill body 1. As a connecting component between the tool and the drill bit and expansion bolt installation head, it can transmit the power of the electric impact drill body 1 to realize the functions of drilling and installing expansion bolts, and can be replaced according to actual operation requirements.

[0039] The limiting assembly consists of components such as mounting base 6, front grip 8, mounting block 13 and two protective shells 5, and is used to assist in stable operation and precise positioning.

[0040] Mounting base 6: It is fixedly installed on the outer front wall of the electric impact drill body 1 and is the basic mounting component of the limiting assembly. The lower surface of the mounting base 6 has a mounting block groove 15 for mounting the mounting block 13. The inner wall of the mounting block groove 15 has four conical block grooves 14, which cooperate with the conical block at the upper end of the mounting block 13 to achieve initial positioning. The inner walls on both sides of the mounting block groove 15 have first limiting block grooves 11 for mounting the limiting block 10.

[0041] Front grip 8: The upper end is fixedly installed on the lower surface of the mounting block 13. The operator can hold the front grip 8 and the rear grip 3 to stably control the operation direction and force of the tool, thereby improving the stability and accuracy of the operation.

[0042] Mounting block 13: The upper outer wall is slidably connected to the inside of the mounting block groove 15 of the mounting base 6, and the four conical blocks on the upper outer wall are slidably engaged with the conical block groove 14 on the inner wall of the mounting block groove 15 to achieve initial positioning. The upper two outer walls are provided with second limiting block grooves 12, which cooperate with the limiting block 10 to fix the mounting block 13 on the mounting base 6.

[0043] Protective shell 5: Two protective shells 5 are fixedly installed on the outer walls of the mounting base 6 on both sides, which protect the internal rotating threaded rod sleeve 4, rotating threaded rod 9 and other components, preventing dust and debris from entering and affecting the normal operation of the components. The outer wall of the protective shell 5 is rotatably connected to the rotating threaded rod sleeve 4, and the interior is connected to the first limit block groove 11, providing installation space for the rotating threaded rod 9 and other components.

[0044] Rotating threaded sleeve 4 and rotating threaded rod 9: Rotating threaded sleeve 4 is rotatably connected to the outer wall of protective shell 5, with one end extending rotatably into the interior of protective shell 5. Rotating threaded rod 9 is set in the first limiting block groove 11, with one end rotatably connected to the outer wall of limiting block 10 and the other end threadedly connected to the interior of rotating threaded sleeve 4. By rotating rotating threaded sleeve 4, rotating threaded rod 9 can be driven to rotate, thereby pushing limiting block 10 to slide in the first limiting block groove 11 and the second limiting block groove 12.

[0045] Limiting block 10: Slides within the first limiting block groove 11 and the second limiting block groove 12. When the rotating threaded rod sleeve 4 is rotated, the rotating threaded rod 9 pushes the limiting block 10 to slide, so that one end of it extends into the second limiting block groove 12, fixing the mounting block 13 on the mounting base 6, thereby realizing the limiting function.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A drillable expansion anchor installation tool comprising an electric impact drill main body (1), a rear handle (3) and a connecting head (7), characterized in that: The electric impact drill body (1) is provided with a limit component; The limiting assembly includes a mounting base (6), a front handle (8), a mounting block (13), and two protective shells (5). The upper end of the front handle (8) is fixedly mounted on the lower surface of the mounting block (13). The mounting base (6) is fixedly mounted on the outer wall of the front end of the electric impact drill body (1). The two protective shells (5) are fixedly mounted on the outer walls of the two sides of the mounting base (6). The mounting base (6) has a mounting block groove (15) on its lower surface. The inner wall of the mounting block groove (15) is provided with four conical block grooves (14), the outer walls of the two protective shells (5) are rotatably connected with rotating threaded rod sleeves (4), the inner walls of both sides of the mounting block groove (15) are provided with first limiting block grooves (11), the inner walls of the two first limiting block grooves (11) are slidably connected with limiting blocks (10), the outer walls of both sides of the upper end of the mounting block (13) are provided with second limiting block grooves (12), the inner walls of the two first limiting block grooves (11) are provided with rotating threaded rods (9).

2. The drilling-capable expansion bolt installation tool according to claim 1, characterized in that: The upper outer wall of the mounting block (13) is slidably connected to the inside of the mounting block groove (15); Among them, the outer walls of the four conical blocks on the upper outer wall of the mounting block (13) are slidably connected to the interior of the corresponding conical block groove (14).

3. The drilling-capable expansion bolt installation tool according to claim 1, characterized in that: The ends of the two limiting blocks (10) near the second limiting block groove (12) are slidably extended into the interior of the mounting block groove (15) and are respectively slidably connected to the interior of the corresponding second limiting block groove (12); The interiors of the two protective shells (5) are connected to the interiors of the corresponding first limiting block grooves (11).

4. The drilling-capable expansion bolt installation tool according to claim 1, characterized in that: The ends of the two rotating threaded rods (9) near the limiting block (10) are respectively rotatably connected to the outer wall of the corresponding limiting block (10), and the ends of the two rotating threaded rod sleeves (4) near the protective shell (5) are rotatably extended into the interior of the protective shell (5); Among them, the outer wall of the end of the two rotating threaded rods (9) away from the limiting block (10) is respectively connected to the internal thread of the corresponding rotating threaded rod sleeve (4).

5. The drilling-capable expansion bolt installation tool according to claim 1, characterized in that: The rear handle (3) is fixedly installed on the outer wall of the rear end of the electric impact drill body (1), and the electric impact drill body (1) is electrically connected to the rear handle (3). The connector (7) is fixedly installed at the front end of the electric impact drill body (1).

6. The drilling-capable expansion bolt installation tool according to claim 1, characterized in that: The electric impact drill body (1) is electrically connected to the connector (7), and a power connection cable interface is provided on the outer wall of the rear end of the electric impact drill body (1). The outer wall of the rear grip (3) is fitted with a protective sleeve (2).

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