Expansion screw mounting equipment
By designing an expansion screw installation device with folding and limiting mechanisms, the problems of large equipment footprint and cumbersome operation were solved, enabling convenient storage and fixation of drill bits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-31
AI Technical Summary
Existing expansion bolt installation equipment occupies a large space, is inconvenient to carry, and is cumbersome to operate.
An expansion screw mounting device was designed, which includes a folding device and a limiting device. The folding device is used to store the drill bit, reducing the space occupied by the device; the limiting device is used to fix the drill bit during use.
It enables convenient storage of drill bits, reduces the space occupied by the equipment, and makes it easy to carry and store. At the same time, it effectively limits the position of the drill bit during use.
Smart Images

Figure CN224059727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric drill technology, and specifically to a device for installing expansion screws. Background Technology
[0002] The existing method for installing expansion bolts requires drilling holes in the wall, then hammering the expansion tube and bolt into the holes, and finally tightening the nuts. This is time-consuming, labor-intensive, and cumbersome, requiring multiple tools.
[0003] Chinese patent publication number CN112171581B discloses a device for installing expansion screws, including a transmission mechanism, a drill bit mechanism, a push-pull handle, a main grip, a switch, and a secondary grip structure. The transmission mechanism and the drill bit mechanism are rotatably mounted to enable switching between different drill bits. The cylindrical part of the secondary grip structure is rotatably mounted to the drill bit mechanism, and the machine is kept stable by gripping the secondary grip structure with another hand. The angle of the secondary grip structure can be adjusted to facilitate the use of the machine. The main grip is located under the housing of the transmission mechanism, and the switch is located under the housing of the transmission mechanism to control the operation of the transmission mechanism. The push-pull handle is installed on the outside of the housing of the transmission mechanism and is rotatably mounted behind a U-shaped iron plate. The push-pull handle is used to push and fix the U-shaped iron plate.
[0004] The existing technology has the following problems: it is difficult to fold the drill bit, it is inconvenient to carry, and it takes up too much space. Therefore, we propose a device for installing expansion screws. Utility Model Content
[0005] The purpose of this invention is to solve the problems mentioned in the background section and to provide a device for installing expansion screws. This invention, through the design of a folding device, allows components such as the rotating shaft, fixing plate, and baffle to cooperate with each other. By moving the baffle away from the fixing plate, the fixing plate is relieved of stress, which in turn pushes the drill bit, causing it to rotate through the rotating shaft and be stored in the groove. This achieves the effect of storing the drill bit, reducing the space occupied by the device, and making it easy to store and carry.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] An expansion bolt installation device includes an installation apparatus. The installation apparatus includes a device sleeve, a handle is provided at the rear end of the outer surface of the device sleeve, a switch is provided on the outer surface of the device sleeve, the switch is located in front of the connection point between the handle and the device sleeve, a support rod is provided on the inner wall of the device sleeve, a motor is provided at the end of the support rod away from the inner wall of the device sleeve, a rotating rod is provided on the output shaft of the motor, and a drill bit is fixedly connected to the end of the rotating rod away from the motor. A folding device is provided inside the installation apparatus.
[0008] Preferably, the folding device includes a rotating shaft, the circumferential surface of which is rotatably connected to the end of the support rod away from the inner wall of the device sleeve, the circumferential surface of which is fixedly connected to the end of the motor away from the rotating rod, a fixing plate fixedly connected to the circumferential surface of the rotating shaft, a sliding groove and a through groove formed on the outer surface of the device sleeve, a baffle plate provided on one side of the fixing plate, and a rack fixedly connected to one side of the baffle plate.
[0009] Preferably, one end of the baffle passes through the device sleeve via a through groove and is slidably connected to the device sleeve. The rotating shaft is located inside the device sleeve, and the baffle is located on the displacement trajectory of the fixed plate.
[0010] Preferably, the mounting device is externally equipped with a limiting device, which includes a rocker arm. One end of the rocker arm passes through the outer surface of the device sleeve and is rotatably connected to the device sleeve. A gear A passes through the end of the rocker arm near the device sleeve and is fixedly connected to the gear A. A sliding plate is slidably connected to the outer surface of the device sleeve. A locking block is fixedly connected to one side of the sliding plate. A positioning plate is fixedly connected to the outer surface of the device sleeve. A spring is fixedly connected to one side of the positioning plate. The end of the spring away from the positioning plate is fixedly connected to the end of the sliding plate away from the locking block. A gear B passes through the end of the rocker arm near the device sleeve and is fixedly connected to the gear B.
[0011] Preferably, gear B meshes with rack, gear A is located on the displacement trajectory of the locking block, and the number of locking blocks is set according to the size of the slide plate and arranged in a linear array on one side of the slide plate.
[0012] Preferably, there are two springs, which are symmetrical about each other along the horizontal central axis of the positioning plate, the rocker arm is L-shaped, and the gear B is located inside the device sleeve.
[0013] Preferably, the end of the drill bit away from the rotating rod passes through the device sleeve via a groove and is slidably connected to the device sleeve, with the drill bit located at the opening of the groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model, through the setting of the folding device, enables the components such as the rotating shaft, the fixed plate and the baffle to cooperate with each other. By moving the baffle away from the fixed plate, the fixed plate is no longer under force, which in turn pushes the drill bit, causing the drill bit to rotate through the rotating shaft and store the drill bit in the slide groove. This achieves the effect of storing the drill bit, reducing the space occupied by the equipment, and making it easy to store and carry.
[0016] 2. This utility model, through the setting of a limiting device, enables the rocker arm, gear A, and slide plate to cooperate with each other. By pushing the slide plate, the slide plate causes the locking block on it to move horizontally, thereby moving the locking block away from gear A. Then, by rotating the rocker arm, the rocker arm drives gear B to rotate, which in turn causes gear B to drive the rack to move vertically, thereby causing the rack to drive the baffle to move vertically. This achieves the effect of limiting and fixing the drill bit when it is in use. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a bottom view of the device sleeve structure of this utility model;
[0019] Figure 3 This is a rear view structural diagram of the device sleeve of this utility model;
[0020] Figure 4 This is a cross-sectional view of the device sleeve of this utility model;
[0021] Figure 5 This is a three-dimensional structural diagram of the gear at point B of this utility model;
[0022] Figure 6 This utility model Figure 3 Enlarged three-dimensional structure diagram of A.
[0023] The components are as follows: 1. Mounting device; 101. Device sleeve; 102. Handle; 103. Switch; 104. Support rod; 105. Motor; 106. Rotating rod; 107. Drill bit; 2. Folding device; 201. Rotating shaft; 202. Fixing plate; 203. Slide groove; 204. Through groove; 205. Baffle; 206. Rack; 3. Limiting device; 301. Rocker arm; 302. Gear A; 303. Slide plate; 304. Locking block; 305. Positioning plate; 306. Spring; 307. Gear B. Detailed Implementation
[0024] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0025] Example 1, as Figure 1-6As shown, an expansion screw installation device includes an installation apparatus 1. The installation apparatus 1 includes a device sleeve 101. A handle 102 is provided at the rear end of the outer surface of the device sleeve 101. A switch 103 is provided on the outer surface of the device sleeve 101, located in front of the connection point between the handle 102 and the device sleeve 101. A support rod 104 is provided on the inner wall of the device sleeve 101. A motor 105 is provided at one end of the support rod 104 away from the inner wall of the device sleeve 101. A rotating rod 106 is provided on the output shaft of the motor 105. A drill bit 107 is fixedly connected to one end of the rotating rod 106 away from the motor 105. A folding device 2 is provided inside the installation apparatus 1. The folding device 2 includes a rotating shaft 201. The circumferential surface of 01 is rotatably connected to the end of the support rod 104 away from the inner wall of the device sleeve 101. The circumferential surface of the rotating shaft 201 is fixedly connected to the end of the motor 105 away from the rotating rod 106. A fixing plate 202 is fixedly connected to the circumferential surface of the rotating shaft 201. A sliding groove 203 is opened on the outer surface of the device sleeve 101. A through groove 204 is opened on the outer surface of the device sleeve 101. A baffle 205 is provided on one side of the fixing plate 202. A rack 206 is fixedly connected to one side of the baffle 205. One end of the baffle 205 passes through the through groove 204 and slides through the device sleeve 101. The rotating shaft 201 is located inside the device sleeve 101. The baffle 205 is located on the displacement trajectory of the fixing plate 202.
[0026] According to the above structure, when the baffle 205 is displaced, it moves away from the fixed plate 202, thereby freeing the fixed plate 202 from force. This then pushes the drill bit 107, causing the drill bit 107 to drive the rotating rod 106 and the motor 105 to rotate through the rotating shaft 201, thereby storing the drill bit 107 in the slide groove 203. This achieves the effect of storing the drill bit 107, making it convenient to carry and taking up little space.
[0027] like Figure 1-6As shown, a limiting device 3 is provided on the outside of the mounting device 1. The limiting device 3 includes a rocker arm 301. One end of the rocker arm 301 passes through the outer surface of the device sleeve 101 and is rotatably connected to the device sleeve 101. A gear A302 passes through the end of the rocker arm 301 near the device sleeve 101 and is fixedly connected to the gear A302. A sliding plate 303 is slidably connected to the outer surface of the device sleeve 101. A locking block 304 is fixedly connected to one side of the sliding plate 303. A positioning plate 305 is fixedly connected to the outer surface of the device sleeve 101. A spring 306 is fixedly connected to one side of the positioning plate 305. The end of the spring 306 away from the positioning plate 305 is fixedly connected to the end of the sliding plate 303 away from the locking block 304. The rocker arm 301... A gear B307 is inserted through one end of the device sleeve 101 and is fixedly connected to the gear B307; the gear B307 meshes with the rack 206; the gear A302 is located on the displacement trajectory of the locking block 304; the number of locking blocks 304 is set according to the size of the slide plate 303 and is arranged linearly on one side of the slide plate 303; there are two springs 306, which are symmetrical to each other along the horizontal central axis of the positioning plate 305; the rocker arm 301 is L-shaped; the gear B307 is located inside the device sleeve 101; the end of the drill bit 107 away from the rotating rod 106 passes through the slide groove 203 through the device sleeve 101 and is slidably connected to the device sleeve 101; the drill bit 107 is located at the opening of the slide groove 203.
[0028] Based on the above structure, this application pushes the slide plate 303, causing the locking block 304 on it to move horizontally, thereby moving the locking block 304 away from the gear A302. Then, by rotating the rocker arm 301, the rocker arm 301 drives the gear B307 to rotate, which in turn drives the rack 206 to move vertically, thereby causing the rack 206 to move the baffle 205 vertically. This achieves the effect of limiting and fixing the drill bit 107 when it is activated. When it is necessary to fix the rocker arm 301, by releasing the slide plate 303, the slide plate 303, through the restoring property of the spring 306, causes the slide plate 303 to drive the locking block 304 to lock the gear A302, thereby achieving the effect of limiting and fixing.
[0029] In Example 2, the expansion screw fixing groove at the front end of the drill bit 107 of the device disclosed in this utility model is set as a detachable structure, and the size and type of the expansion screw fixing groove are set according to the expansion screw model.
[0030] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0031] The above description represents the preferred operating mode of this utility model. The specific operating mode description is only for better understanding the concept of this utility model. For those skilled in the art, several improvements or equivalent substitutions can be made based on the principles of this utility model, and these improvements or equivalent substitutions are also considered to fall within the protection scope of this utility model.
Claims
1. An installation expansion screw apparatus, characterized by: The utility model provides an installation device (1), the installation device (1) includes device cover (101), the rear end of device cover (101) outside surface is provided with handle (102), be provided with switch (103) on the outside surface of device cover (101), switch (103) is located handle (102) and device cover (101) connection point position front, the inner wall of device cover (101) is provided with support rod (104), the one end of support rod (104) away from the inner wall of device cover (101) is provided with motor (105), the output shaft of motor (105) is provided with rotating rod (106), the one end of rotating rod (106) away from motor (105) is fixedly connected drill bit (107), the inside of installation device (1) is provided with folding device (2).
2. An apparatus for installing an expansion screw according to claim 1, wherein: The utility model provides an installation device (1), the installation device (1) includes device cover (101), the rear end of device cover (101) outside surface is provided with handle (102), be provided with switch (103) on the outside surface of device cover (101), switch (103) is located handle (102) and device cover (101) connection point position front, the inner wall of device cover (101) is provided with support rod (104), the one end of support rod (104) away from the inner wall of device cover (101) is provided with motor (105), the output shaft of motor (105) is provided with rotating rod (106), the one end of rotating rod (106) away from motor (105) is fixedly connected drill bit (107), the inside of installation device (1) is provided with folding device (2).
3. An apparatus for installing an expansion screw according to claim 2, wherein: The one end of the baffle (205) is through the through groove (204) and is connected to the device cover (101), and is connected to the device cover (101) in sliding mode, the rotating shaft (201) is located in the device cover (101), and the baffle (205) is located on the displacement track of the fixed plate (202).
4. The apparatus of claim 1, wherein: The outside of the installation device (1) is provided with a limiting device (3), the limiting device (3) includes a rocker (301), one end of the rocker (301) penetrates the outer surface of the device cover (101), and is rotatably connected to the device cover (101), the one end of the rocker (301) close to the device cover (101) penetrates a gear A (302), and is fixedly connected with the gear A (302), the outer surface of the device cover (101) is slidably connected with a sliding plate (303), one side of the sliding plate (303) is fixedly connected with a clamping block (304), the outer surface of the device cover (101) is fixedly connected with a positioning plate (305), one side of the positioning plate (305) is fixedly connected with a spring (306), the one end of the spring (306) away from the positioning plate (305) is fixedly connected with the one end of the sliding plate (303) away from the clamping block (304), the one end of the rocker (301) close to the device cover (101) penetrates a gear B (307), and is fixedly connected with the gear B (307).
5. An apparatus for installing an expansion screw according to claim 4, wherein: The gear B (307) and the gear rack (206) are engaged with each other, the gear A (302) is located on the displacement track of the clamping block (304), and is linearly arranged on one side of the sliding plate (303).
6. An apparatus for installing an expansion screw according to claim 4, wherein: The number of the springs (306) is two, and they are mutually symmetrical along the horizontal middle axis of the positioning plate (305), the shape of the rocker (301) is L-shaped, and the gear B (307) is located inside the device sleeve (101).
7. The apparatus of claim 1, wherein: The drill bit (107) is penetrated into the device sleeve (101) through the sliding groove (203) at the end far from the rotating rod (106), and is in sliding connection with the device sleeve (101), and the drill bit (107) is located at the opening direction of the sliding groove (203).
Citation Information
Patent Citations
An expansion bolt installation device
CN112171581B