A hand-held drilling device

Abstract

The utility model relates to the technical field of drilling tool discloses a hand -operated drilling device, including the support, the inside rotation connection of support has the rotating rod, the outside fixed connection of rotating rod has drive assembly, the outside of rotating rod is provided with the nut, the inside of nut is provided with the drill chuck, the outside rotation connection of drill chuck is in the inside of support, the outside fixed connection of support has first shell, the inside of first shell sets up in the outside of drive assembly, the outside of drive assembly is provided with second shell, the outside of second shell sets up in the outside of first shell, the inside screw thread connection of support has the pressure bar. In the utility model, through manual rotation hand -operated disc drive second bevel gear rotates, thereby second bevel gear engages first bevel gear drive drill chuck rotates, thereby can reduce the waiting and maintenance time because of equipment failure, reaches the effect of improving the repair quality and operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and in particular to a hand-cranked drilling device. Background Technology

[0002] In the field of drilling technology, drilling devices are indispensable tools in machining, construction, equipment maintenance and other scenarios. At present, most of the mainstream drilling devices on the market are electrically driven. These devices use motors to provide power to drive the drill chuck and drill bit to rotate at high speed to achieve drilling operations. With their high degree of automation and high drilling efficiency, they are widely used in various large-scale processing or construction scenarios.

[0003] However, existing mainstream drilling equipment has obvious defects in practical applications. When malfunctions occur during operation (such as motor damage, pneumatic valve blockage, etc.), professional personnel are required for repair, resulting in work interruption and long waiting time for repair, which seriously affects the quality of maintenance and overall work efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a hand-cranked drilling device, which aims to improve the problem that traditional drilling devices malfunction during operation, resulting in long waiting times for repairs and seriously affecting the quality of maintenance and overall work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hand-cranked drilling device includes a bracket, a rotating rod rotatably connected inside the bracket, a drive assembly fixedly connected to the outside of the rotating rod, a nut disposed outside the rotating rod, a drill chuck disposed inside the nut, the drill chuck rotatably connected to the inside of the bracket, a first outer shell fixedly connected to the outside of the bracket, the inside of the first outer shell disposed outside the drive assembly, a second outer shell disposed outside the drive assembly, the outside of the second outer shell disposed outside the first outer shell, and a pressure rod threadedly connected inside the bracket.

[0007] The above technical solution involves manually rotating the drive assembly inside the first and second housings, which in turn drives the rotating rod to rotate within the bracket. This rotating rod, in turn, drives the drill chuck to rotate. Through the gear transmission ratio design, a labor-saving and stable drilling operation can be achieved.

[0008] Preferably, the drive assembly includes a first bevel gear, the interior of which is rotatably connected to the exterior of the rotating rod, the tooth ends of the first bevel gear meshing with a second bevel gear, the exterior of which is rotatably connected to the interior of a first housing, the exterior of which is rotatably connected to the interior of a second housing, and a hand crank is disposed inside the second bevel gear, the exterior of which is rotatably connected to the exterior of the second housing.

[0009] Preferably, the second housing is slidably connected to a fixing component, which is externally fixedly connected to the outside of the first housing.

[0010] Preferably, the fixing component includes a locking rod, which is slidably connected to the outside of the second housing. A first spring is provided inside the locking rod, and a first fixing block is provided at one end of the first spring. A first connecting block is engaged with the outside of the locking rod.

[0011] Preferably, the outside of the first fixing block is fixedly connected to the outside of the second housing, the outside of the first connecting block is disposed inside the first fixing block, and the outside of the first connecting block is fixedly connected to the outside of the first housing.

[0012] Preferably, the fixing component further includes a second connecting block, the second connecting block being externally fixedly connected to the outside of the first housing, the outside of the second connecting block being provided with a sliding sleeve, the outside of the sliding sleeve being provided with a second spring, one end of the second spring being provided with a second fixing block, and the inside of the second fixing block being threadedly connected with a fixing rod.

[0013] Preferably, the outer part of the sliding sleeve is slidably connected to the inside of the second fixing block, the outer part of the second connecting block is disposed inside the second fixing block, and the outer part of the fixing rod is threadedly connected to the inside of the second connecting block.

[0014] Preferably, a third connecting block is fixedly connected to the outside of the second housing, and the outside of the third connecting block is disposed inside the first housing.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the second bevel gear is driven to rotate by manually rotating the hand crank, thereby meshing the first bevel gear and driving the drill chuck to rotate. This can reduce the waiting and maintenance time caused by equipment failure, thereby improving the quality of maintenance and work efficiency.

[0017] 2. In this utility model, by pushing the lever so that one end of the lever leaves the inside of the first connecting block, the second outer shell and the second bevel gear can be removed one by one for inspection and maintenance. This allows for regular checks on the wear of the gears, thus preventing accidental damage during use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a hand-cranked drilling device proposed in this utility model;

[0019] Figure 2 This is a partial structural diagram of the first bevel gear of a hand-cranked drilling device proposed in this utility model.

[0020] Figure 3 This is a partial structural diagram of the second bevel gear of a hand-cranked drilling device proposed in this utility model;

[0021] Figure 4 This is a partial structural diagram of the first spring of a hand-cranked drilling device proposed in this utility model.

[0022] Figure 5 This is a partial structural diagram of the hand crank of a hand-cranked drilling device proposed in this utility model;

[0023] Figure 6 This is a partial structural diagram of the third connecting block of a hand-cranked drilling device proposed in this utility model;

[0024] Figure 7 This is a partial structural diagram of the second spring of a hand-cranked drilling device proposed in this utility model.

[0025] Legend:

[0026] 1. Bracket; 2. Rotating rod; 3. Drive assembly; 301. First bevel gear; 302. Second bevel gear; 303. Hand crank; 4. Nut; 5. Drill chuck; 6. First housing; 7. Second housing; 8. Pressure rod; 9. Fixing assembly; 901. Clamping rod; 902. First spring; 903. First fixing block; 904. First connecting block; 905. Second connecting block; 906. Sliding sleeve; 907. Second spring; 908. Second fixing block; 909. Fixing rod; 10. Third connecting block. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example 1:

[0029] Reference Figure 1 , Figure 2and Figure 3 An embodiment of this utility model provides a hand-cranked drilling device, including a bracket 1, a rotating rod 2 rotatably connected inside the bracket 1, a drive assembly 3 fixedly connected to the outside of the rotating rod 2, a nut 4 disposed outside the rotating rod 2, a drill chuck 5 disposed inside the nut 4, the drill chuck 5 rotatably connected to the inside of the bracket 1, a first outer shell 6 fixedly connected to the outside of the bracket 1, the inside of the first outer shell 6 disposed outside the drive assembly 3, a second outer shell 7 disposed outside the drive assembly 3, the outside of the second outer shell 7 disposed outside the first outer shell 6, and a pressure rod 8 threadedly connected inside the bracket 1.

[0030] Specifically, the rhomboid shape of the bracket 1 is used to support the drive assembly 3 inside, allowing the drill chuck 5 to rotate. One end of the rotating rod 2 is threaded to connect the drill chuck 5 and the drive assembly 3. The nut 4 is composed of one large and one small nut to fix the drill chuck 5 and the rotating rod 2. The drill chuck 5 is used to clamp the drill bit, allowing the drive assembly 3 to drive the drill bit to rotate. The first housing 6 has a bearing inside to ensure the rotation position of the drive assembly 3 and improve the transmission efficiency of the drive assembly 3. The second housing 7 is used to cooperate with the first housing 6 to seal the drive assembly 3 and prevent dust, debris and other impurities from entering the drive assembly 3. The drive assembly 3 allows the operator to manually drive the drill bit to rotate, thus achieving the effect of relying entirely on human power and being suitable for special environments such as no wind and no electricity.

[0031] Reference Figure 2 and Figure 3 The drive assembly 3 includes a first bevel gear 301, which is rotatably connected to the outside of the rotating rod 2. The tooth ends of the first bevel gear 301 are meshed with a second bevel gear 302. The outside of the second bevel gear 302 is rotatably connected to the inside of the first housing 6 and the outside of the second housing 7. A hand crank 303 is provided inside the second bevel gear 302, and the outside of the hand crank 303 is rotatably connected to the outside of the second housing 7.

[0032] Specifically, in this embodiment, the hand crank 303 consists of a handle, a turntable, and a connecting shaft, which facilitates the operator to manually rotate the second bevel gear 302. The second bevel gear 302 makes it easier for the operator to drive the drill bit to rotate. The first bevel gear 301 is used to transmit the power of the second bevel gear 302 to the drill chuck 5 to make the drill bit rotate, thus eliminating the need for complex electrical or pneumatic components, achieving the effect of low failure rate and easy on-site maintenance.

[0033] Example 2:

[0034] Reference Figure 2 , Figure 3 and Figure 4A fixing component 9 is slidably connected to the outside of the second outer shell 7, and the fixing component 9 is fixedly connected to the outside of the first outer shell 6. The fixing component 9 includes a locking rod 901, which is slidably connected to the outside of the second outer shell 7. A first spring 902 is provided inside the locking rod 901, and a first fixing block 903 is provided at one end of the first spring 902. A first connecting block 904 is engaged with the outside of the locking rod 901. The outside of the first fixing block 903 is fixedly connected to the outside of the second outer shell 7, and the outside of the first connecting block 904 is provided inside the first fixing block 903. The outside of the first connecting block 904 is fixedly connected to the outside of the first outer shell 6.

[0035] Specifically, in this embodiment, the lever 901 is composed of an L-shaped control plate, a connecting rod, and a toothed block. The L-shaped control plate facilitates the operator's control of the lever 901 to release the first connecting block 904. The connecting rod is used to connect the control plate and the toothed block. The toothed block is a right-angled trapezoid, which facilitates quick installation without having to pull the lever 901 during installation. The first fixing block 903 is used to protect the first spring 902, reduce external air contact, and reduce the oxidation probability of the first spring 902. The first connecting block 904 is composed of two support blocks, which facilitates the connection between the second outer shell 7 and the first outer shell 6, thereby achieving the effect of facilitating the disassembly of the second outer shell 7 to observe the meshing status of the second bevel gear 302.

[0036] Example 3:

[0037] Reference Figure 5 , Figure 6 and Figure 7 The fixing component 9 also includes a second connecting block 905, which is externally fixedly connected to the outside of the first housing 6. A sliding sleeve 906 is provided on the outside of the second connecting block 905, and a second spring 907 is provided on the outside of the sliding sleeve 906. A second fixing block 908 is provided at one end of the second spring 907, and a fixing rod 909 is internally threadedly connected to the inside of the second fixing block 908. The outside of the sliding sleeve 906 is slidably connected to the inside of the second fixing block 908, and the outside of the second connecting block 905 is located inside the second fixing block 908. The outside of the fixing rod 909 is externally threadedly connected to the inside of the second connecting block 905. A third connecting block 10 is fixedly connected to the outside of the second housing 7, and the outside of the third connecting block 10 is located inside the first housing 6.

[0038] Specifically, the second connecting block 905 consists of two support blocks to facilitate the connection between the second housing 7 and the first housing 6. The second fixing block 908 is used to cooperate with the second connecting block 905 to connect the second housing 7 and the first housing 6. The sliding sleeve 906 has a groove inside that is suitable for the sliding of the second connecting block 905, which facilitates the second connecting block 905 to push the sliding sleeve 906. The second spring 907 is used to pop out the second connecting block 905 when the fixing rod 909 releases the fixing of the second connecting block 905. The fixing rod 909 consists of a lever and a round rod, which allows the operator to control whether the second connecting block 905 is fixed or not. One end of the second connecting block 905 is threaded to effectively fix the second connecting block 905. The third connecting block 10 is used to connect the first housing 6, so that the entire transmission assembly does not need to be replaced, thus achieving the effect of greatly reducing maintenance costs.

[0039] Working principle: By manually rotating the hand crank 303 inside the second housing 7, the hand crank 303 drives the second bevel gear 302 to rotate inside the first housing 6. The second bevel gear 302 then meshes with the first bevel gear 301 and rotates. The first bevel gear 301 further drives the rotating rod 2 to rotate inside the bracket 1, thereby rotating the drill chuck 5. This can reduce waiting and maintenance time caused by equipment failure, thereby improving maintenance quality and work efficiency.

[0040] When the second bevel gear 302 inside the first housing 6 and the second housing 7 needs to be inspected and maintained, the second housing 7 is held with both hands and the locking rod 901 is pushed to slide outside the second housing 7. This causes the locking rod 901 to push the first spring 902 to retract, thereby causing one end of the locking rod 901 to leave the inside of the first connecting block 904. Then, the second housing 7 and the second bevel gear 302 can be removed one by one for inspection and maintenance. The processed second bevel gear 302 is then installed on the ring of the hand crank 303 and aligned with the first housing 6 outside the bracket 1. This causes the first connecting block 904 to push the locking rod 901 to slide. When the first connecting block 904 has slid in completely, the first spring 902 pushes the locking rod 901 to lock the first connecting block 904. This allows for regular inspection of the gear wear and helps prevent accidental damage during use.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hand-cranked drilling device, comprising a support (1), characterized in that: The bracket (1) is rotatably connected to a rotating rod (2) inside, and a drive assembly (3) is fixedly connected to the outside of the rotating rod (2). A nut (4) is provided on the outside of the rotating rod (2), and a drill chuck (5) is provided inside the nut (4). The drill chuck (5) is rotatably connected to the inside of the bracket (1). A first outer shell (6) is fixedly connected to the outside of the bracket (1). The inside of the first outer shell (6) is located outside the drive assembly (3). A second outer shell (7) is provided outside the drive assembly (3). The outside of the second outer shell (7) is located outside the first outer shell (6). A pressure rod (8) is threadedly connected to the inside of the bracket (1).

2. The hand-cranked drilling device according to claim 1, characterized in that: The drive assembly (3) includes a first bevel gear (301), the interior of which is rotatably connected to the exterior of the rotating rod (2). The tooth ends of the first bevel gear (301) are meshed with a second bevel gear (302). The exterior of the second bevel gear (302) is rotatably connected to the interior of the first housing (6). The exterior of the second bevel gear (302) is rotatably connected to the interior of the second housing (7). A hand crank (303) is provided inside the second bevel gear (302), and the exterior of the hand crank (303) is rotatably connected to the exterior of the second housing (7).

3. The hand-cranked drilling device according to claim 1, characterized in that: The second housing (7) is slidably connected to a fixing component (9), which is externally fixedly connected to the outside of the first housing (6).

4. A hand-cranked drilling device according to claim 3, characterized in that: The fixing component (9) includes a locking rod (901), which is slidably connected to the outside of the second housing (7). A first spring (902) is provided inside the locking rod (901), and a first fixing block (903) is provided at one end of the first spring (902). A first connecting block (904) is engaged with the outside of the locking rod (901).

5. A hand-cranked drilling device according to claim 4, characterized in that: The first fixing block (903) is externally fixedly connected to the outside of the second housing (7), the first connecting block (904) is externally disposed inside the first fixing block (903), and the first connecting block (904) is externally fixedly connected to the outside of the first housing (6).

6. A hand-cranked drilling device according to claim 3, characterized in that: The fixing component (9) further includes a second connecting block (905), which is externally fixedly connected to the outside of the first housing (6). A sliding sleeve (906) is provided on the outside of the second connecting block (905), and a second spring (907) is provided on the outside of the sliding sleeve (906). A second fixing block (908) is provided at one end of the second spring (907), and a fixing rod (909) is threadedly connected to the inside of the second fixing block (908).

7. A hand-cranked drilling device according to claim 6, characterized in that: The outer side of the sliding sleeve (906) is slidably connected to the inside of the second fixing block (908), the outer side of the second connecting block (905) is disposed inside the second fixing block (908), and the outer side of the fixing rod (909) is threadedly connected to the inside of the second connecting block (905).

8. A hand-cranked drilling device according to claim 1, characterized in that: The second outer shell (7) is fixedly connected to a third connecting block (10), and the outer side of the third connecting block (10) is disposed inside the first outer shell (6).

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