A drilling tool with telescopic function

Abstract

The present invention discloses a drilling tool with telescopic function, and the present invention relates to the technical field of drilling tools. The drilling tool with telescopic function limits the drilling angle of the drill body through the cooperation of the limiting inner ring, the transmission outer ring and the limiting transmission rod, can contact the locking between the limiting inner ring and the transmission outer ring when the drill body is vertically drilling, and automatically locks the limiting inner ring and the transmission outer ring when the drill body is tilted during the drilling process, so as to prevent the drill body from continuously drilling, and further improve the drilling accuracy compared with the traditional drilling method.

Description

Technical Field

[0001] The invention relates to the technical field of drilling tools, in particular to a drilling tool with a telescopic function. Background Art

[0002] The drilling tool is used to drill holes in workpieces and walls. Referring to the Chinese patent with the announcement number "CN213257285U" titled "A mobile telescopic drilling device", the patent points out that the existing drilling devices are extremely inconvenient and inefficient; however, when drilling vertical holes in walls or workpieces, the drilling operation is performed by hand-held means, which is laborious and may result in drilling deviation, affecting the drilling accuracy. Therefore, we propose a drilling tool with a telescopic function to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a drilling tool with a telescopic function, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a drilling tool with telescopic function, comprising a drilling machine body, a driving shaft is rotatably connected inside the drilling machine body, a locking piece is provided at the end of the driving shaft and is connected to a drill body through the locking piece, for drilling operations;

[0005] A telescopic slide rod is provided on one side of the drill body away from the drill head body, and a stop plate is fixed at the end of the telescopic slide rod for adjusting the length according to the user's arm span;

[0006] A limiting inner ring is fixed to one side of the drilling rig body close to the drill bit body, and a transmission outer ring is slidably connected to the outer side of the limiting inner ring. A plurality of arc-shaped positioning frames are fixed to the outer side of the transmission outer ring, and an arc-shaped transmission shaft is slidably connected to the inside of the arc-shaped positioning frames. The end of the arc-shaped transmission shaft extends to the limiting inner ring, which is used to lock the transmission outer ring and the limiting inner ring. A plurality of limiting transmission rods are rotatably connected to the outer side of the transmission outer ring, and a transmission assembly matched with the limiting transmission rod is provided at the end of the arc-shaped positioning frame. The limiting transmission rod is used to fit the wall to be drilled and limit the angle of the drill bit body until the drill bit body is kept vertical to the wall during operation, and can drive a plurality of limiting transmission rods to rotate simultaneously and contact with the transmission assembly, thereby canceling the locking of the limiting inner ring and the transmission outer ring.

[0007] Preferably, the transmission assembly includes a transmission plate, which is fixed inside the corresponding arc-shaped positioning frame. A storage slot is opened inside the transmission plate, and a transmission pressure plate is rotatably connected inside the storage slot. The transmission pressure plate is rotatably installed, and a connecting rod is rotatably connected between the transmission pressure plate and the corresponding arc-shaped transmission shaft.

[0008] Preferably, a plurality of positioning slots are provided on the outer surface of the limiting inner ring, and the end of the arc-shaped transmission shaft is inserted into the positioning slot to lock the transmission outer ring and the limiting inner ring, and an arc-shaped surface is provided on one side of the end of the arc-shaped transmission shaft.

[0009] Preferably, a plurality of sliders are fixed to the outer side of the arc-shaped transmission shaft, the sliders are slidably connected to the inside of the arc-shaped positioning frame, and a spring body is sleeved on the outer side of the arc-shaped transmission shaft.

[0010] Preferably, a plurality of rectangular grooves are provided on the outer side of the transmission outer ring, and a plurality of the limit transmission rods are rotatably connected inside the rectangular grooves, and rollers are rotatably installed at the ends of the plurality of limit transmission rods for contacting the wall to be drilled, and a reset spring is provided between the end of the limit transmission rod away from the roller and the rectangular groove for driving the limit transmission rod to reset.

[0011] Preferably, a driving assembly is provided inside the drilling rig body for driving the driving shaft to operate, the driving assembly includes a servo motor, the servo motor is fixed at the bottom of the drilling rig body and the output end of the servo motor is sleeved with a driving member, a transmission rod is rotatably installed inside the drilling rig body, a transmission gear and a driving bevel gear are fixedly sleeved at both ends of the transmission rod, a transmission bevel gear meshing with the driving bevel gear is fixedly sleeved at the end of the driving shaft, and the transmission gear and the driving member are meshed with each other;

[0012] Preferably, a hand-held rod is fixedly mounted on the bottom of the drill body, threaded holes are symmetrically provided on both sides of the drill body, and auxiliary rods are fixed inside the threaded holes.

[0013] Preferably, a locking frame is fixed to the top surface of the drilling rig body, the telescopic slide rod is slidably connected to the locking frame, and the end of the telescopic slide rod is installed with a mutually meshing locking screw for locking the telescopic slide rod and the locking frame by rotating the locking screw.

[0014] Preferably, an anti-skid pad is rotatably mounted on the end of the locking screw, and an anti-skid pad matched with the anti-skid pad is fixed on the top surface of the locking frame.

[0015] Preferably, a limiting ring is fixedly mounted on the top surface of the locking frame, and the telescopic sliding rod passes through the limiting ring and is slidably connected thereto.

[0016] Preferably, the multiple limit transmission rods are length-adjustable telescopic rods, which can adjust the length of the limit transmission rods. By adjusting the length of the limit transmission rods, the drilling angle can be adjusted during operation, which further improves the drilling effect and scope of application of the equipment.

[0017] The present invention provides a drilling tool with telescopic function. Compared with the prior art, it has the following beneficial effects:

[0018] (1) The drilling tool with telescopic function limits the drilling angle of the drill bit body by cooperating with the limit inner ring, the transmission outer ring and the limit transmission rod. When the drill bit body is vertically drilling, the limit inner ring and the transmission outer ring are locked. When the drill bit body is tilted during the drilling process, the limit inner ring and the transmission outer ring are automatically locked to prevent the drill bit body from drilling continuously. Compared with the traditional drilling method, the drilling accuracy is further improved.

[0019] (2) The drilling tool with telescopic function can make the stop plate fit and press against the shoulder through the setting of the telescopic slide rod during operation to achieve the wall drilling operation. Moreover, through the cooperation between the telescopic slide rod and the locking frame, the extension length of the telescopic slide rod can be adjusted by loosening the locking screw. By adjusting the length of the telescopic slide rod, the device can be suitable for use by different groups of people, thereby improving the convenience of use and the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure;

[0022] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 For the present invention Figure 2 Look at the structural diagram;

[0024] Figure 5 This is a schematic diagram of the structure of the limiting inner ring and the transmission outer ring of the present invention;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the limiting inner ring and the transmission outer ring of the present invention;

[0026] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0027] Figure 8 It is a schematic cross-sectional structure diagram of the arc-shaped transmission shaft and the transmission plate of the present invention;

[0028] Fig. 9 For the present invention Figure 1 Side view.

[0029] In the figure: 1. Drilling machine body; 101. Hand-held rod; 102. Auxiliary rod; 103. Servo motor; 1031. Driving member; 104. Transmission rod; 1041. Transmission gear; 1042. Driving bevel gear; 2. Locking frame; 201. Limiting ring; 202. Anti-skid pad; 3. Telescopic slide bar; 301. Stop plate; 302. Locking screw; 303. Anti-skid pad; 4. Driving shaft; 401. Transmission bevel gear; 5 , locking piece; 501, drill body; 6, limiting inner ring; 601, positioning slot; 7, transmission outer ring; 701, rectangular slot; 8, limiting transmission rod; 801, roller; 802, reset spring; 9, arc positioning frame; 10, arc transmission shaft; 1001, arc surface; 1002, slider; 1003, spring body; 11, transmission plate; 1101, storage slot; 12, transmission pressure plate; 1201, connecting rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 9 The present invention provides two technical solutions, which specifically include the following embodiments:

[0032] In the embodiments of the present invention, Embodiment 1: Reference Figure 1 A drilling tool with telescopic function, comprising a drilling machine body 1, a driving shaft 4 is rotatably connected inside the drilling machine body 1, a locking piece 5 is provided at the end of the driving shaft 4 and a drill body 501 is connected through the locking piece 5, and is used for drilling operations. By holding the drilling machine body 1, the running drill body 501 is located at a position to be drilled, and then the drilling machine body 1 is pressed to achieve the drilling operation on the wall;

[0033] In the embodiment of the present invention, further, a telescopic slide bar 3 is provided on one side of the drill body 1 away from the drill head body 501, and a stop plate 301 is fixed to the end of the telescopic slide bar 3 for adjusting the length according to the arm span of the user. When performing the drilling operation, the stop plate 301 can be fitted with the shoulder. In the process of pressing the drill body 1, as the shoulder exerts force, the drill body 1 can be pushed to achieve the wall drilling operation. Moreover, the length of the telescopic slide bar 3 is adjustable, so it can be suitable for different users, thereby improving the application range of the device.

[0034] In the embodiment of the present invention, further, reference is made to Figure 5-Figure 9A limited inner ring 6 is fixed on one side of the drill body 1 close to the drill bit body 501, and a transmission outer ring 7 is slidably connected to the outer side of the limited inner ring 6. A plurality of arc-shaped positioning frames 9 are fixed to the outer side of the transmission outer ring 7, and an arc-shaped transmission shaft 10 is slidably connected inside the arc-shaped positioning frames 9. The end of the arc-shaped transmission shaft 10 extends to the limited inner ring 6, which is used to lock the transmission outer ring 7 and the limited inner ring 6. A plurality of limited transmission rods 8 are rotatably connected to the outer side of the transmission outer ring 7, and a transmission assembly adapted to the limited transmission rod 8 is provided at the end of the arc-shaped positioning frame 9. The rod 8 is used to fit the wall to be drilled and limit the angle of the drill body 501 until the drill body 501 is kept vertically to the wall during operation. It can drive multiple limit transmission rods 8 to rotate and contact the transmission component at the same time, cancel the locking of the limit inner ring 6 and the transmission outer ring 7. The initial state of the limit inner ring 6 and the transmission outer ring 7 is a locked state. The lengths of multiple limit transmission rods 8 are all beyond the drill body 501. During operation, as the user holds the drill body 1 close to the wall, multiple limit transmission rods 8 can be kept in contact with the wall. When the drill body 501 is in a vertical position with respect to the wall, the limit transmission rod 8 can be rotated and contacted with the transmission assembly. If the drill body 501 is not in a vertical position with respect to the wall, only the limit transmission rod 8 in the tilting direction of the drill body 1 can be in contact with the transmission assembly, and the limit transmission rod 8 in the opposite tilting direction of the drill body 1 will not be in contact with the transmission assembly, resulting in that the limit inner ring 6 and the transmission outer ring 7 are always in a locked state. At this time, the user needs to adjust the angle between the drill body 1 and the wall until it is in a vertical position with respect to the wall. The movable rod 8 can be pressed and contact with the corresponding transmission assembly at the same time to realize the unlocking of the limit inner ring 6 and the transmission outer ring 7. After the limit inner ring 6 and the transmission outer ring 7 are unlocked, as the drill body 501 drills into the wall, the transmission outer ring 7 can slide on the outside of the limit inner ring 6. If the drill body 501 deflects during the drilling process, the limit transmission rod 8 in the opposite direction of the deflection will be separated from the transmission assembly. At this time, the limit inner ring 6 and the transmission outer ring 7 will be locked in time until the drill body 501 is adjusted to a state perpendicular to the wall and then continues to operate;

[0035] In the embodiment of the present invention, specifically, refer to Figure 6-Figure 8The transmission assembly includes a transmission plate 11, which is fixed inside the corresponding arc-shaped positioning frame 9. A receiving slot 1101 is provided inside the transmission plate 11, and a transmission pressure plate 12 is rotatably connected inside the storage slot 1101. The transmission pressure plate 12 is rotatably installed, and a connecting rotating rod 1201 is rotatably connected between the transmission pressure plate 12 and the corresponding arc-shaped transmission shaft 10. When the limit transmission rod 8 is rotated under force, it can rotate toward the transmission plate 11. As the limit transmission rod 8 enters the transmission plate 11 and contacts the transmission pressure plate 12, the transmission pressure plate 12 can be rotated under force, and the arc-shaped transmission shaft 10 is driven to slide inside the arc-shaped positioning frame 9 through the connecting rotating rod 1201, so that the arc-shaped transmission shaft 10 is separated from the limit inner ring 6, and the locking operation is cancelled;

[0036] In the embodiment of the present invention, specifically, a plurality of positioning slots 601 are provided on the outer surface of the limiting inner ring 6, and the end of the arc-shaped transmission shaft 10 is inserted into the positioning slot 601 to lock the transmission outer ring 7 and the limiting inner ring 6. An arc-shaped surface 1001 is provided on one side of the end of the arc-shaped transmission shaft 10. When the drill body 501 is kept vertically drilled during drilling operations, the plurality of limiting transmission rods 8, through the cooperation of the transmission assembly, simultaneously drive the plurality of arc-shaped transmission shafts 10 to separate from the positioning slots 601, thereby canceling the locking. On the contrary, when the drilling hole is tilted and the corresponding limit transmission rod 8 is separated from the transmission assembly, the corresponding arc transmission shaft 10 can be reset in time and inserted into the positioning slot 601. The arc surface 1001 is used to reset the transmission outer ring 7. When resetting, as the arc surface 1001 contacts the positioning slot 601, the arc transmission shaft 10 can be pushed into the arc positioning frame 9 to achieve automatic reset. A spring is provided between the transmission outer ring 7 and the limit inner ring 6 to achieve reset operation after drilling is completed.

[0037] In the embodiment of the present invention, specifically, a plurality of sliders 1002 are fixed to the outside of the arc-shaped transmission shaft 10, and the sliders 1002 are slidably connected to the inside of the arc-shaped positioning frame 9. A spring body 1003 is sleeved on the outside of the arc-shaped transmission shaft 10, and the spring body 1003 is used to drive the arc-shaped transmission shaft 10 to slide and reset;

[0038] In the embodiment of the present invention, specifically, a plurality of rectangular grooves 701 are provided on the outer side of the transmission outer ring 7, and a plurality of limit transmission rods 8 are rotatably connected inside the rectangular grooves 701. Rollers 801 are rotatably installed at the ends of the plurality of limit transmission rods 8. The rollers 801 are used to contact the wall surface to be drilled to reduce friction with the wall surface. A reset spring 802 is provided between the end of the limit transmission rod 8 away from the roller 801 and the rectangular groove 701, which is used to drive the limit transmission rod 8 to reset.

[0039] In the embodiment of the present invention, specifically, a driving assembly is provided inside the drilling rig body 1 for driving the driving shaft 4 to operate, and the driving assembly includes a servo motor 103, which is an existing device. The servo motor 103 is fixed at the bottom of the drilling rig body 1 and the output end of the servo motor 103 is sleeved with a driving member 1031, and the driving member 1031 is an existing spur gear for realizing the driving operation. A transmission rod 104 is rotatably installed inside the drilling rig body 1, and a transmission gear 1041 and a driving bevel gear 1042 are fixedly sleeved at both ends of the transmission rod 104, respectively. A transmission bevel gear 401 meshing with the driving bevel gear 1042 is fixedly sleeved at the end of the driving shaft 4, and the transmission gear 1041 meshes with the driving member 1031 to realize the driving operation of the driving shaft 4;

[0040] In the embodiment of the present invention, further, a hand-held rod 101 is fixedly installed at the bottom of the drill body 1, threaded holes are symmetrically opened on both sides of the drill body 1, and an auxiliary rod 102 is fixed inside the threaded hole. During operation, the hand-held rod 101 is held by one hand, and then the auxiliary rod 102 is held by the other hand to perform drilling operation, which further improves the convenience of drilling;

[0041] In the embodiment of the present invention, further, a locking frame 2 is fixed to the top surface of the drilling rig body 1, and the telescopic slide rod 3 is slidably connected to the locking frame 2. The end of the telescopic slide rod 3 is installed with a mutually meshing locking screw 302, which is used to lock the telescopic slide rod 3 and the locking frame 2 by rotating the locking screw 302. When adjusting, the locking screw 302 is loosened, and the telescopic slide rod 3 can be pushed to make adjustments. After the adjustment is completed, the locking screw 302 can be used to re-lock it. By adjusting the length of the telescopic slide rod 3, the device can be suitable for use by different groups of people, thereby improving the convenience of use and the scope of application of the device.

[0042] In the embodiment of the present invention, further, an anti-skid pad 303 is rotatably mounted on the end of the locking screw 302, and an anti-skid pad 202 adapted to the anti-skid pad 303 is fixed on the top surface of the locking frame 2. Through the cooperation between the anti-skid pad 303 and the anti-skid pad 202, when the locking screw 302 is rotated to lock, the anti-skid pad 303 can be brought into contact with the anti-skid pad 202, thereby further improving the operation stability.

[0043] In the embodiment of the present invention, further, a limit ring 201 is fixedly installed on the top surface of the locking frame 2, the telescopic slide rod 3 passes through the limit ring 201 and is slidably connected thereto, and the limit ring 201 is used to limit the telescopic slide rod 3.

[0044] Embodiment 2: Based on embodiment 1, multiple limit transmission rods 8 are length-adjustable telescopic rods, which can adjust the length of the limit transmission rods 8. By adjusting the length of the limit transmission rods 8, the drilling angle can be adjusted during operation, which further improves the drilling effect and scope of application of the equipment.

[0045] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A drilling tool with telescopic function, comprising a drilling machine body (1), characterized in that: A driving shaft (4) is rotatably connected inside the drilling machine body (1), and a locking piece (5) is provided at the end of the driving shaft (4) and is connected to a drill bit body (501) via the locking piece (5) for performing drilling operations; A telescopic slide bar (3) is provided on one side of the drill body (1) away from the drill head body (501), and a stop plate (301) is fixed to the end of the telescopic slide bar (3) for adjusting the length according to the arm span of the user; A limiting inner ring (6) is fixed on one side of the drill body (1) close to the drill bit body (501); a transmission outer ring (7) is slidably connected to the outer side of the limiting inner ring (6); a plurality of arc-shaped positioning frames (9) are fixed to the outer side of the transmission outer ring (7); and arc-shaped transmission shafts (10) are slidably connected to the inside of the arc-shaped positioning frames (9); the ends of the arc-shaped transmission shafts (10) extend to the limiting inner ring (6) and are used to lock the transmission outer ring (7) and the limiting inner ring (6); and the outer side of the transmission outer ring (7) is fixed to the outer side of the transmission outer ring (7). A plurality of limit transmission rods (8) are rotatably connected to the side, and a transmission assembly matched with the limit transmission rod (8) is provided at the end of the arc-shaped positioning frame (9). The limit transmission rod (8) is used to fit with the wall surface to be drilled and to limit the angle of the drill body (501). When the drill body (501) is drilled in a vertical state with respect to the wall surface during operation, the plurality of limit transmission rods (8) can be driven to rotate simultaneously and contact with the transmission assembly, thereby canceling the locking of the limit inner ring (6) and the transmission outer ring (7); The transmission assembly comprises a transmission plate (11), the transmission plate (11) is fixed inside a corresponding arc-shaped positioning frame (9), a receiving slot (1101) is provided inside the transmission plate (11), and a transmission pressure plate (12) is rotatably connected inside the receiving slot (1101), the transmission pressure plate (12) is rotatably mounted, and a connecting rod (1201) is rotatably connected between the transmission pressure plate (12) and the corresponding arc-shaped transmission shaft (10); The outer surface of the limiting inner ring (6) is provided with a plurality of positioning slots (601), and the end of the arc-shaped transmission shaft (10) is inserted into the positioning slot (601) to lock the transmission outer ring (7) and the limiting inner ring (6), and one side of the end of the arc-shaped transmission shaft (10) is provided with an arc-shaped surface (1001); A plurality of sliders (1002) are fixed to the outside of the arc-shaped transmission shaft (10), the sliders (1002) are slidably connected to the inside of the arc-shaped positioning frame (9), and a spring body (1003) is sleeved on the outside of the arc-shaped transmission shaft (10); A plurality of rectangular grooves (701) are formed on the outer side of the transmission outer ring (7), and a plurality of the limit transmission rods (8) are rotatably connected inside the rectangular grooves (701). Rollers (801) are rotatably mounted on the ends of the plurality of limit transmission rods (8) for contacting the wall surface to be drilled, and a return spring (802) is provided between the end of the limit transmission rod (8) away from the roller (801) and the rectangular groove (701) for driving the limit transmission rod (8) to return.

2. The drilling tool with telescopic function according to claim 1, characterized in that: A driving assembly is provided inside the drilling rig body (1) for driving the driving shaft (4) to operate. The driving assembly comprises a servo motor (103). The servo motor (103) is fixed to the bottom of the drilling rig body (1) and the output end of the servo motor (103) is sleeved with a driving member (1031). A transmission rod (104) is rotatably mounted inside the drilling rig body (1). A transmission gear (1041) and a driving bevel gear (1042) are respectively fixedly sleeved at both ends of the transmission rod (104). A transmission bevel gear (401) meshing with the driving bevel gear (1042) is fixedly sleeved at the end of the driving shaft (4). The transmission gear (1041) and the driving member (1031) are meshed with each other.

3. The drilling tool with telescopic function according to claim 1, characterized in that: A hand-held rod (101) is fixedly mounted on the bottom of the drill body (1), threaded holes are symmetrically provided on both sides of the drill body (1), and auxiliary rods (102) are fixed inside the threaded holes.

4. The drilling tool with telescopic function according to claim 1, characterized in that: A locking frame (2) is fixed to the top surface of the drilling rig body (1), the telescopic slide rod (3) is slidably connected to the locking frame (2), and the end of the telescopic slide rod (3) is installed with a mutually meshing locking screw (302) for locking the telescopic slide rod (3) and the locking frame (2) by rotating the locking screw (302).

5. The drilling tool with telescopic function according to claim 4, characterized in that: An anti-skid pad (303) is rotatably mounted on the end of the locking screw (302), and an anti-skid pad plate (202) adapted to the anti-skid pad (303) is fixed on the top surface of the locking frame (2).

6. The drilling tool with telescopic function according to claim 4, characterized in that: A limit ring (201) is fixedly mounted on the top surface of the locking frame (2), and the telescopic sliding rod (3) passes through the limit ring (201) and is slidably connected thereto.

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