Adjustable electric drill bit support structure

Abstract

The utility model provides an adjustable electric drill bit support structure which comprises a first installation support, a second installation support and an installation cavity, the second installation support is hinged to the bottom end of the first installation support, the installation cavity is formed in the front end of the second installation support, and a transmission assembly and a transmission belt are arranged in the first installation support. Transmission rollers, a driven assembly, a mounting plate and a transmission belt are arranged in the second mounting support, the mounting plate is arranged in the center in the second mounting support, and the transmission rollers are arranged on the left side and the right side of the rear end of the mounting plate and connected with the transmission assembly and the driven assembly through the transmission belt. According to the adjustable electric drill bit support structure, power transmission is conducted through the transmission belt and assemblies in all the transmission structures, so that all the transmission parts are not prone to abrasion, meanwhile, vibration force transmitted to the support structure in the working process of a drill bit can be reduced, and the risk that the support structure loosens in the working process of an electric drill can be reduced; and the drilling accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical installation and disassembly, and more specifically to an adjustable electric drill head bracket structure. Background Art

[0002] At present, the electric drills used in maintenance and construction are basically fixedly connected to the handle. In this way, since the volume of the handle is several times that of the electric drill head, it is impossible to enter and operate in many narrow spaces, which limits the position of the electric drill.

[0003] In view of the above problems, regarding the technical problem that the existing electric drill cannot enter and operate in many narrow spaces, which makes the position of the electric drill have certain limitations, after a lot of searches, an adjustable electric drill head bracket structure with patent number CN211360754U was found, including: a mounting bracket, the mounting bracket includes a first mounting bracket and a second mounting bracket, the connection between the first mounting bracket and the second mounting bracket is an adjustable mechanism, the position of the first electric drill head is adjusted by the adjustable mechanism, and a plurality of nuts are vertically welded on the mounting bracket, which is characterized in that: a steel wire rope is passed through the hole of the nut, a first iron hoop piece is vertically fixed at the front end of the mounting bracket, a second iron hoop piece is vertically fixed at the rear end of the mounting bracket, a first electric drill head is provided at the front end of the first iron hoop piece, a second electric drill head is provided at the front end of the second iron hoop piece, and the first electric drill head and the second electric drill head are connected by a steel wire rope, but the technical solution provided by the patent still has the following problems:

[0004] (1) The device uses a steel wire rope for transmission, and the steel wire rope is set in a hole on the nut. The steel wire rope is easy to cause wear to the transmission parts and the nut during the transmission process, which increases the maintenance cost. In addition, since the nut is connected to the steel wire rope, it is difficult to remove the nut, which greatly increases the difficulty of maintenance work.

[0005] (2) Large vibrations are usually generated during the operation of an electric drill, and the adjustment mechanism of the device is only fixed by a butterfly nut, which poses a risk of loosening during the electric drilling process. Utility Model Content

[0006] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides an adjustable electric drill bit support structure, the transmission structure of which is more stable, not easy to wear, and can reduce the vibration of the drill bit.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable electric drill bit bracket structure, comprising: a first mounting bracket, a second mounting bracket and a mounting cavity, the second mounting bracket is hinged to the bottom end of the first mounting bracket, the mounting cavity is arranged at the front end of the second mounting bracket, the first mounting bracket is provided with a transmission assembly and a transmission belt, the second mounting bracket is provided with a transmission roller, a driven assembly, a mounting plate and a transmission belt, wherein the mounting plate is arranged at the inner center of the second mounting bracket, the transmission roller is arranged on the left and right sides of the rear end of the mounting plate, and the transmission roller is connected to the transmission assembly and the driven assembly through the transmission belt, an adjustment disk is also arranged on one side of the transmission roller, a limiting nut is also arranged on the adjustment disk, and a drill bit mounting assembly is arranged in the mounting cavity.

[0008] A further preferred solution: the transmission assembly includes: a driving gear, a driving bevel gear, and a transmission bevel gear, wherein the rear end of the driving bevel gear is connected to a connecting rod, the tail end of the connecting rod is connected to the rear inner wall of the first mounting bracket, a gear is provided on the connecting rod, the driving gear is meshed with the gear, and the driving gear is installed at the output end of the output motor in the electric drill, and the transmission bevel gear is meshed with the driving bevel gear.

[0009] A further preferred solution is that the transmission bevel gear is connected to the side wall of the first mounting bracket via a connecting shaft, and a limiting sleeve is provided on the connecting shaft, and a transmission belt is provided between the limiting sleeve and the transmission bevel gear.

[0010] A further preferred solution: three limit sleeves are provided on the transmission roller, the other end of the transmission belt mounted on the transmission bevel gear connecting shaft is mounted between the two limit sleeves on the outside of the transmission roller, and a transmission belt is also mounted between the two limit sleeves on the inside of the transmission roller. A round rod is also provided on the outside of the transmission roller, and the round rod passes through the left and right side walls of the second mounting bracket and is connected to the adjusting disk.

[0011] A further preferred solution: the driven assembly comprises: a toothed disc, a transmission member and a driven roller, wherein the driven roller is arranged on the left and right sides of the front end of the mounting plate, the toothed disc is arranged on the inner side of the driven roller, two limit sleeves are arranged on the outer side of the driven roller, and the other end of the transmission belt sleeved between the two limit sleeves on the inner side of the transmission roller is sleeved between the two limit sleeves on the driven roller;

[0012] A small bevel gear is arranged at one end of the transmission member and is meshed and connected with a toothed disc, and a gear is arranged at the middle section of the transmission member.

[0013] A further preferred solution: The drill bit mounting assembly includes: a connecting rod, an assembly plate, a shock absorber and a drill bit clamp, wherein the rear end of the connecting rod is connected to the front end of the mounting plate, a gear is provided in the middle section of the connecting rod and is meshed with the gear on the transmission member, the assembly plate is arranged at the front end of the connecting rod, the shock absorber is arranged on both sides of the center of the front end of the assembly plate, and the rear end of the drill bit clamp is connected to the front end of the shock absorber.

[0014] A further preferred solution is that the connecting rod is a hollow rod, and a circular through hole is provided in the center of the assembly plate, and a positioning rod is provided in the center of the rear end of the drill clamp, and the diameter of the positioning rod is very consistent with the inner wall diameter of the circular through hole.

[0015] Beneficial effects:

[0016] 1. By providing a transmission assembly, a transmission belt and a driven assembly, the transmission belt and the components in each transmission structure are used to transmit power, so that each transmission component is not easy to wear, and each connection structure is easy to disassemble, which can facilitate the subsequent maintenance work;

[0017] 2. By providing a drill bit mounting assembly with a shock-absorbing member, when the drill bit is working, the drill bit mounting assembly can reduce the vibration of the drill bit, reduce the vibration force transmitted to the support structure during the operation of the drill bit, and reduce the risk of the support structure loosening during the operation of the electric drill, thereby ensuring the accuracy of drilling;

[0018] 3. In summary, this type of adjustable electric drill bit support structure, by providing structures such as a transmission component, a transmission belt, a driven component, and a drill bit mounting component with a shock absorber, utilizes the transmission belt and components in each transmission structure to transmit power, so that each transmission component is not easy to wear. At the same time, it can reduce the vibration force transmitted to the support structure by the drill bit during operation, and can reduce the risk of the support structure loosening during the operation of the electric drill, thereby ensuring the accuracy of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal component structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the transmission roller structure of the utility model.

[0022] Figure 4 This is a structural schematic diagram of a drill bit mounting assembly of the present utility model.

[0023] Figure 1-4 In: 1. First mounting bracket; 2. Second mounting bracket; 3. Mounting cavity; 4. Transmission assembly; 401. Driving gear; 402. Driving bevel gear; 403. Transmission bevel gear; 5. Transmission roller; 501. Limit sleeve; 6. Adjustment plate; 601. Limit nut; 7. Driven assembly; 701. Toothed disc; 702. Transmission member; 703. Driven roller; 8. Drill bit mounting assembly; 801. Connecting rod; 802. Assembly plate; 803. Shock absorber; 804. Drill bit clamp; 9. Mounting plate; 10. Transmission belt. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0025] See also Figure 1-4 In an embodiment of the utility model, an adjustable electric drill bit bracket structure includes: a first mounting bracket 1, a second mounting bracket 2 and a mounting cavity 3, the second mounting bracket 2 is hinged to the bottom end of the first mounting bracket 1, the mounting cavity 3 is arranged at the front end of the second mounting bracket 2, the first mounting bracket 1 is provided with a transmission component 4 and a transmission belt 10, the second mounting bracket 2 is provided with a transmission roller 5, a driven component 7 and a mounting plate 9 and a transmission belt 10, wherein the mounting plate 9 is arranged at the inner center of the second mounting bracket 2, the transmission roller 5 is arranged on the left and right sides of the rear end of the mounting plate 9, and the transmission roller 5 is connected to the transmission component 4 and the driven component 7 through the transmission belt 10, an adjusting disk 6 is also arranged on one side of the transmission roller 5, and a limiting nut 601 is also arranged on the adjusting disk 6, and a drill bit mounting component 8 is arranged in the mounting cavity 3.

[0026] In the embodiment of the utility model, the transmission assembly 4 includes: a driving gear 401, a driving bevel gear 402, and a transmission bevel gear 403, wherein the rear end of the driving bevel gear 402 is connected to a connecting rod, the tail end of the connecting rod is connected to the rear inner wall of the first mounting bracket 1, a gear is arranged on the connecting rod, the driving gear 401 is meshed with the gear, and the driving gear 401 is installed at the output end of the output motor in the electric drill, the transmission bevel gear 403 is meshed with the driving bevel gear 402, and the driving gear 401 is driven by the output motor in the electric drill to drive the driving bevel gear 402 and the transmission bevel gear 403 to rotate so as to transmit power to the next-level transmission structure.

[0027] In the embodiment of the utility model, the transmission bevel gear 403 is connected to the side wall of the first mounting bracket 1 through a connecting shaft, and a limiting sleeve 501 is also provided on the connecting shaft. A transmission belt 10 is sleeved between the limiting sleeve 501 and the transmission bevel gear 403. The limiting sleeve 501 can prevent the transmission belt 10 from shifting during the transmission process, thereby improving the transmission effect.

[0028] In the embodiment of the utility model, three limit sleeves 501 are sleeved on the transmission roller 5, and the other end of the transmission belt 10 sleeved on the rotating shaft connected to the transmission bevel gear 403 is sleeved between the two limit sleeves 501 on the outside of the transmission roller 5, and the transmission belt 10 is also sleeved between the two limit sleeves 501 on the inside of the transmission roller 5. A round rod is also arranged on the outside of the transmission roller 5, and the round rod passes through the left and right side walls of the second mounting bracket 2 and is connected to the adjusting disk 6. When adjusting the angle, the second mounting bracket 2 can be rotated with the center of the circle of the adjusting disk 6 as the axis. After adjusting to the target angle, the second mounting bracket 2 can be fixed by tightening the limit nut 601 on the adjusting disk 6.

[0029] In the embodiment of the utility model, the driven assembly 7 includes: a toothed disc 701, a transmission member 702 and a driven roller 703, wherein the driven roller 703 is arranged on the left and right sides of the front end of the mounting plate 9, the toothed disc 701 is arranged on the inner side of the driven roller 703, and two limiting sleeves 501 are arranged on the outer side of the driven roller 703, and the other end of the transmission belt 10 sleeved between the two limiting sleeves 501 on the inner side of the transmission roller 5 is sleeved between the two limiting sleeves 501 on the driven roller 703;

[0030] A small bevel gear is provided at one end of the transmission member 702 and is meshed with the toothed disc 701. At the same time, a gear is provided in the middle section of the transmission member 702. The driven roller 703 rotates under the drive of the transmission belt 10, and the toothed disc 701 will rotate along with the driven roller 703, thereby driving the transmission member 702 to rotate and transmitting the rotational power to the drill mounting assembly 8.

[0031] In the embodiment of the utility model, the drill bit mounting assembly 8 includes: a connecting rod 801, an assembly plate 802, a shock absorber 803 and a drill bit clamp 804, wherein the rear end of the connecting rod 801 is connected to the front end of the mounting plate 9, a gear is provided in the middle section of the connecting rod 801, and is meshed with the gear on the transmission member 702, the assembly plate 802 is arranged at the front end of the connecting rod 801, the shock absorber 803 is arranged on both sides of the center of the front end of the assembly plate 802, and the rear end of the drill bit clamp 804 is connected to the front end of the shock absorber 803.

[0032] The connecting rod 801 is a hollow rod, and a circular through hole is opened in the center of the assembly plate 802. At the same time, a positioning rod is set in the center of the rear end of the drill clamp 804. The diameter of the positioning rod is very consistent with the inner wall diameter of the circular through hole. When the electric drill is working, the shock absorber 803 can reduce the vibration transmitted to the support structure by the drill bit, thereby preventing the limit nut 601 from loosening, reducing the risk of loosening during the use of the electric drill.

[0033] Working principle: Before use, you need to first install the drill bit into the drill bit clamp 804, then loosen the limit nut 601 on the adjusting disk 6, and then manually adjust the angle of the second mounting bracket 2. After adjusting to the target angle, you only need to tighten the limit nut 601 on the adjusting disk 6 to fix the second mounting bracket 2, and then start the electric drill. The driving motor in the electric drill will drive the driving gear 401 to rotate, and its power will be transmitted to the drill bit through various levels of transmission structures for drilling. During the operation of the drill bit, the shock absorber 803 can reduce the vibration transmitted from the drill bit to the bracket structure, thereby preventing the limit nut 601 from loosening, thereby reducing the risk of loosening during the use of the electric drill.

Claims

1. An adjustable electric drill head support structure, comprising: A first mounting bracket (1), a second mounting bracket (2) and a mounting cavity (3), characterized in that: the second mounting bracket (2) is hinged to the bottom end of the first mounting bracket (1), the mounting cavity (3) is arranged at the front end of the second mounting bracket (2), a transmission component (4) and a transmission belt (10) are arranged in the first mounting bracket (1), a transmission roller (5), a driven component (7) and a mounting plate (9) and a transmission belt (10) are arranged in the second mounting bracket (2), wherein the mounting plate (9) is arranged at the inner center of the second mounting bracket (2), the transmission roller (5) is arranged on the left and right sides of the rear end of the mounting plate (9), and the transmission roller (5) is connected to the transmission component (4) and the driven component (7) through the transmission belt (10), an adjustment disk (6) is also arranged on one side of the transmission roller (5), and a limit nut (601) is also arranged on the adjustment disk (6), and a drill bit mounting component (8) is arranged in the mounting cavity (3).

2. The adjustable electric drill bit support structure according to claim 1, characterized in that: The transmission assembly (4) comprises: a driving gear (401), a driving bevel gear (402), and a transmission bevel gear (403), wherein the rear end of the driving bevel gear (402) is connected to a connecting rod, the rear end of the connecting rod is connected to the rear inner wall of the first mounting bracket (1), a gear is arranged on the connecting rod, the driving gear (401) is meshedly connected with the gear, and the driving gear (401) is mounted on the output end of the output motor in the electric drill, and the transmission bevel gear (403) is meshedly connected with the driving bevel gear (402).

3. The adjustable electric drill bit support structure according to claim 2, characterized in that: The transmission bevel gear (403) is connected to the side wall of the first mounting bracket (1) via a connecting shaft, and a limiting sleeve (501) is also provided on the connecting shaft, and a transmission belt (10) is sleeved between the limiting sleeve (501) and the transmission bevel gear (403).

4. The adjustable electric drill bit support structure according to claim 1, characterized in that: The transmission roller (5) is sleeved with three limit sleeves (501); the other end of a transmission belt (10) sleeved on a rotating shaft connected to a transmission bevel gear (403) is sleeved between two limit sleeves (501) located outside the transmission roller (5); a transmission belt (10) is also sleeved between two limit sleeves located inside the transmission roller (5); a round rod is also arranged on the outside of the transmission roller (5); the round rod passes through the left and right side walls of the second mounting bracket (2) and is connected to the adjustment disk (6).

5. The adjustable electric drill bit support structure according to claim 1, characterized in that: The driven component (7) comprises: a toothed disc (701), a transmission member (702) and a driven roller (703), wherein the driven roller (703) is arranged on the left and right sides of the front end of the mounting plate (9), the toothed disc (701) is arranged on the inner side of the driven roller (703), two limiting sleeves (501) are arranged on the outer side of the driven roller (703), and the other end of the transmission belt (10) sleeved between the two limiting sleeves (501) on the inner side of the transmission roller (5) is sleeved between the two limiting sleeves (501) on the driven roller (703); A small bevel gear is arranged at one end of the transmission member (702) and meshes with the toothed disc (701), and a gear is arranged at the middle section of the transmission member (702).

6. The adjustable electric drill bit support structure according to claim 1, characterized in that: The drill bit mounting assembly (8) comprises: a connecting rod (801), an assembly plate (802), a shock absorbing member (803) and a drill bit clamp (804), wherein the rear end of the connecting rod (801) is connected to the front end of the mounting plate (9), a gear is arranged in the middle section of the connecting rod (801) and is meshed with the gear on the transmission member (702), the assembly plate (802) is arranged at the front end of the connecting rod (801), the shock absorbing member (803) is arranged on both sides of the center of the front end of the assembly plate (802), and the rear end of the drill bit clamp (804) is connected to the front end of the shock absorbing member (803).

7. The adjustable electric drill bit support structure according to claim 6, characterized in that: The connecting rod (801) is a hollow rod, and a circular through hole is provided in the center of the assembly plate (802). A positioning rod is provided in the center of the rear end of the drill clamp (804), and the diameter of the positioning rod is consistent with the inner wall diameter of the circular through hole.

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