Anti-splashing trepanning device

Abstract

The utility model relates to the technical field of trepanning devices, and provides an anti-splashing trepanning device which comprises a trepanning drill bit, a protective cover is arranged outside the trepanning drill bit in a sleeved mode, a waste material interval is arranged between the protective cover and the trepanning drill bit, and the protective cover is provided with a telescopic structure used for being matched with the trepanning depth. The trepanning drill bit is fixedly connected with a fixing ring used for being connected with the protective cover, the fixing ring is detachably connected with the protective cover, a fixing groove is formed in the outer wall of the fixing ring, a connecting ring is arranged at the end, facing the fixing ring, of the protective cover, the fixing ring is sleeved with the connecting ring, and the inner wall of the connecting ring abuts against the outer wall of the fixing ring. A plurality of telescopic balls capable of stretching into the connecting ring are arranged on the inner wall of the connecting ring, reset pads are arranged on the sides, away from the fixing ring, of the telescopic balls, and the multiple balls are all embedded into the fixing grooves. The punching device not only can effectively prevent waste from splashing and reduce the influence on the working environment, but also can guarantee the health and safety of workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hole opening device technical field, specifically, relate to a hole opening device of prevent splashing. BACKGROUND

[0002] In various material processing and installation operations, drilling is a common and important operation. The drill bits used in drilling operations are diverse, such as twist drills, impact drills, flat drills, etc. Different types of drill bits are suitable for different materials and processing scenarios, for example, twist drills are suitable for drilling materials such as metal, wood, etc. Impact drills are often used for drilling hard materials such as concrete, masonry, etc.

[0003] However, the existing hole opening drill bit has a common problem in actual use, that is, it is usually not provided with a splash-proof structure. During drilling, the drill bit cuts the material into debris, and these waste materials will fly out from the drill hole. Without effective protection measures, the waste materials fly everywhere, not only increasing the burden of subsequent cleaning, but also some waste materials will be suspended in the air. Workers may inhale these waste materials during operation, causing harm to their health. For example, in construction, waste materials generated by drilling may be raised and dispersed in the air, and long-term inhalation of these waste materials by workers may cause respiratory diseases. In a metal processing workshop, the flying metal debris generated by drilling may not only cause personal injury, but also pollute the workshop environment and affect the normal operation of equipment. SUMMARY

[0004] The utility model provides a more convenient disassembly and cleaning anti-splashing hole opening device to effectively prevent waste materials from splashing, reduce the impact on the working environment, and protect the health and safety of workers.

[0005] The technical solution of the utility model is as follows:

[0006] An anti-splashing hole opening device, comprising a hole opening drill bit, a protective cover is provided outside the hole opening drill bit, a waste material interval is provided between the protective cover and the hole opening drill bit, the protective cover is provided with an extension structure for matching the hole opening depth, the hole opening drill bit is fixedly connected with a fixing ring for connecting the protective cover, the fixing ring and the protective cover are detachably connected, a fixing groove is provided on the outer wall of the fixing ring, one end of the protective cover towards the fixing ring is provided with a connecting ring, the connecting ring is sleeved outside the fixing ring, the inner wall of the connecting ring and the outer wall of the fixing ring are in abutment, a plurality of extension spheres that can extend into the connecting ring are provided on the inner wall of the connecting ring, a reset pad is provided on the side of the extension sphere away from the fixing ring, and the plurality of spheres are embedded in the fixing groove.

[0007] Further, the protective cover comprises a supporting cover and a telescopic cover, the supporting cover is detachably connected with the fixing ring, the telescopic structure comprises a telescopic groove and a reset spring, the telescopic groove is located at one end of the supporting cover facing the telescopic cover, the telescopic groove extends to the inside of the supporting cover, one end of the telescopic cover is located in the telescopic groove, the supporting cover is provided with a limiting structure for preventing the telescopic cover from falling out of the telescopic groove, and the reset spring is located in the telescopic groove and the two ends of the reset spring are respectively in abutment with the supporting cover and the telescopic cover.

[0008] Further, the limiting structure comprises two limiting grooves and two limiting blocks, the two limiting grooves are located at the two sides of the supporting cover, the two limiting blocks are fixedly connected with the telescopic cover, the two limiting blocks are respectively located in the two limiting grooves, and the limiting groove is provided with a limiting baffle at one end facing the telescopic cover.

[0009] Further, the two ends of the reset spring are fixedly connected with auxiliary plates, and the two auxiliary plates are respectively in abutment with the supporting cover and the telescopic cover.

[0010] Further, the fixing ring is provided with a limiting plate, the limiting plate is located at one side of the fixing groove away from the telescopic cover, and one end of the connecting ring away from the supporting cover is in abutment with the limiting plate.

[0011] Further, the telescopic cover is composed of a transparent material, and a user can observe the working condition of the internal hole drilling bit through the telescopic cover.

[0012] The working principle and beneficial effects of the utility model are as follows:

[0013] 1、 the utility model discloses a protective cover is set on the outside of the hole drilling bit, can directly block the waste material and fly outward, effectively reduces the scattering range of waste material in the working area. The setting of waste material interval makes the waste material produced in drilling be able to be concentrated in the space between the protective cover and the hole drilling bit, instead of flying randomly. In this way, when cleaning the waste material, the staff can concentrate on processing the waste material in the waste material interval, instead of cleaning the scattered waste material in a large area, which greatly reduces the cleaning burden. The protective cover is provided with a telescopic structure, which can be adjusted according to the depth of the hole. Under the premise of ensuring the normal work of the hole rotating head, the normal work of the protective cover is ensured.

[0014] 2、In the working of the hole drill, because it is in high speed rotation state, it will produce larger rotation force. And the protective cover is usually in abutment with the cut material to better realize the anti-splashing function, if the protective cover is directly fixed dead, it is easy to rotate together with the hole drill under the driving of the hole drill rotation. If the protective cover rotates together with the hole drill, the continuous friction between the protective cover and the cut material will be produced, and the friction between the parts of the protective cover itself will also be produced due to the relative rotation. In the utility model, the telescopic spherical body in the inner wall of the connecting ring is embedded into the fixed groove in the outer wall of the fixed ring, and the telescopic spherical body can rotate in the fixed groove, which ingeniously designs the connection between the protective cover and the hole drill into the form of relative rotation. When the hole drill rotates at high speed, the rotation force is released and buffered through the rotation of the telescopic spherical body in the fixed groove, so that the protective cover will not be driven to rotate together with the hole drill by the rotation force of the hole drill, thereby ensuring that the protective cover can always maintain a stable stationary state and maintain its normal protection position, and maintaining the appropriate abutment state with the cut material. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the explosion drawing of the utility model;

[0018] Figure 3 It is the front view of the utility model;

[0019] Figure 4 It is the A-A section view of Figure 3

[0020] Figure 5 It is the B-B section view of Figure 4

[0021] In the drawing: 1, hole drill; 2, protective cover; 13, fixed ring; 14, fixed groove; 15, limit plate; 21, support cover; 22, telescopic cover; 23, waste interval; 24, connecting ring; 25, telescopic spherical body; 26, reset pad; 27, telescopic groove; 28, reset spring; 29, limit slot body; 30, limit block; 31, limit baffle; 32, auxiliary plate. SPECIFIC EMBODIMENT

[0022] ​​Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the present application.

[0023] As shown in Figures 1-5 The present embodiment provides a splash-proof drilling device, which comprises a drilling head 1, a protective cover 2 is arranged outside the drilling head 1, a waste material spacing 23 is arranged between the protective cover 2 and the drilling head 1, the protective cover 2 is provided with an extension structure for matching the drilling depth, the drilling head 1 is fixedly connected with a fixing ring 13 for connecting the protective cover 2, the fixing ring 13 is detachably connected with the protective cover 2, a fixing groove 14 is arranged on the outer wall of the fixing ring 13, one end of the protective cover 2 facing the fixing ring 13 is provided with a connecting ring 24, the connecting ring 24 is sleeved outside the fixing ring 13, the inner wall of the connecting ring 24 abuts against the outer wall of the fixing ring 13, a plurality of extension spheres 25 which can extend into the connecting ring 24 are arranged on the inner wall of the connecting ring 24, a reset pad 26 is arranged on the side of the extension sphere 25 away from the fixing ring 13, and the plurality of spheres are embedded in the fixing groove 14.

[0024] The opening drill bit 1 completes the opening operation by rotating to cut the material. The shape and size of the drill bit determine the size and shape of the hole. Different drill bits are suitable for different materials and drilling requirements. In this embodiment, the tooth depth of the opening drill bit 1 is greater than 5 mm, and the tooth spacing is 6-7 mm. The protective cover 2 covers the outside of the opening drill bit 1 to prevent the waste generated during drilling from splashing out and to protect the operator and the surrounding environment. The protective cover 2 can reduce the risk of injury to personnel caused by waste splashing and reduce the pollution of the surrounding environment by waste. The waste spacing 23 is used to collect the waste generated during drilling, so that the waste is concentrated in the space between the protective cover 2 and the opening drill bit 1. The waste spacing 23 facilitates the centralized treatment of waste, reduces the scattering of waste around the drilling hole, and reduces the difficulty of cleaning. The telescopic structure is used to automatically adjust the length of the protective cover 2 according to the drilling depth, ensuring that the protective cover 2 always effectively covers the drilling area. The fixing ring 13 is fixedly connected with the opening drill bit 1 to provide connection and positioning for the protective cover 2, ensuring the stability of the relative position of the protective cover 2 and the opening drill bit 1, so that the protective cover 2 maintains the correct position during drilling. The connecting ring 24 is sleeved outside the fixing ring 13 and cooperates with the fixing ring 13 to connect the protective cover 2. Through the connection of the connecting ring 24 and the fixing ring 13, the protective cover 2 can be installed and removed relative to the fixing ring 13. The telescopic ball 25 is used to cooperate with the fixed groove 14 to realize the fixation of the connecting ring 24 and the fixing ring 13. The telescopic ball 25 can provide stable connection between the connecting ring 24 and the fixing ring 13 to prevent the protective cover 2 from loosening during drilling. The reset pad 26 is used to reset the telescopic ball 25, facilitating the installation or removal of the protective cover 2. It ensures that the telescopic ball 25 can work normally during multiple installation and removal processes, improving the stability and reliability of the connection structure.

[0025] The installation process of the protective cover 2: The connecting ring 24 is sleeved on the fixing ring 13, and the telescopic ball 25 is clamped into the fixed groove 14. The disassembly process: Apply appropriate external force to make the telescopic ball 25 come out of the fixed groove 14, and then the protective cover 2 can be removed. This convenient installation and disassembly method of the embodiment facilitates the user to clean and replace the protective cover 2, improving the practicality of the device.

[0026] In this embodiment, the protective cover 2 includes a support cover 21 and a telescopic cover 22. The support cover 21 is detachably connected with the fixing ring 13. The telescopic structure includes a telescopic groove 27 and a reset spring 28. The telescopic groove 27 is located at one end of the support cover 21 facing the telescopic cover 22 and extends towards the inside of the support cover 21. One end of the telescopic cover 22 is located in the telescopic groove 27. The support cover 21 is provided with a limiting structure for preventing the telescopic cover 22 from falling out of the telescopic groove 27. The reset spring 28 is located in the telescopic groove 27, and the two ends of the reset spring 28 respectively abut against the support cover 21 and the telescopic cover 22.

[0027] The support cover 21, as the main supporting part of the protective cover 2, is detachably connected with the fixing ring 13, and plays a role in firmly installing the protective cover 2. It provides a structural basis for the entire protective cover 2, bears the pressure and impact force from the outside, and ensures the stability of the protective cover 2 during the working process. The support cover 21 provides a carrier for the telescopic slot 27, so that the telescopic structure can be reasonably installed on the support cover 21, and then cooperates with the telescopic cover 22 to realize the telescopic function. The detachable connection mode of the support cover 21 facilitates the user to install, disassemble, clean and replace the protective cover 2. The telescopic cover 22 cooperates with the telescopic slot 27 and the reset spring 28 of the support cover 21 to realize the telescopic function of the protective cover 2. During the drilling process, according to the drilling depth of the hole drilling bit 1, the telescopic cover 22 can flexibly telescope in the telescopic slot 27, ensuring that the protective cover 2 always effectively covers the drilling area to prevent waste from splashing. The telescopic slot 27 provides the telescopic cover 22 with a telescopic space and a guide. It limits the telescopic direction of the telescopic cover 22, ensuring that the telescopic cover 22 can only move linearly along the direction of the telescopic slot 27 during the telescopic process, avoiding the telescopic cover 22 from deviating or twisting during the movement. The telescopic slot 27, as one of the installation positions of the reset spring 28, together with the support cover 21 and the telescopic cover 22, constitutes a complete telescopic structure system, making the cooperation between the components more compact and orderly. The reset spring 28 provides elastic force for realizing the automatic reset of the telescopic cover 22. When the telescopic cover 22 is stretched or compressed by external force during the drilling process, the reset spring 28 will be elastically deformed accordingly, storing or releasing elastic potential energy. When the external force disappears, the elastic force of the reset spring 28 will make the telescopic cover 22 return to the original position. The limiting structure is used to prevent the telescopic cover 22 from falling out of the telescopic slot 27 during the telescopic process. By limiting the movement range of the telescopic cover 22, it is ensured that the telescopic cover 22 always remains in the telescopic slot 27, ensuring the integrity and reliability of the telescopic structure.

[0028] In the embodiment, the limiting structure includes two limiting slot bodies 29 and two limiting blocks 30. The two limiting slot bodies 29 are located on both sides of the support cover 21, and the two limiting blocks 30 are fixedly connected with the telescopic cover 22. The two limiting blocks 30 are respectively located in the two limiting slot bodies 29, and the limiting slot body 29 is provided with a limiting baffle 31 at the end facing the telescopic cover 22.

[0029] The limiting grooves 29 are located on both sides of the support cover 21 and provide guidance and positioning for the limiting blocks 30. They determine the movement path of the telescopic cover 22 during the telescoping process, allowing the telescopic cover 22 to only telescope in the direction of the limiting grooves 29. The limiting blocks 30 are fixedly connected to the telescopic cover 22 and move within the limiting grooves 29 during the telescoping process. The cooperation between the limiting blocks 30 and the limiting grooves 29 ensures that the telescopic cover 22 does not deviate to the sides during the telescoping process, thereby ensuring the stability of the telescopic cover 22. The limiting baffle 31 is used to prevent the limiting blocks 30 from disengaging from the ends of the limiting grooves 29. This limits the maximum telescoping range of the telescopic cover 22, preventing it from disengaging from the telescoping groove 27 due to excessive extension during the telescoping process. The limiting structure restricts the movement direction and range of the telescopic cover 22, allowing it to remain stable during the telescoping process and preventing it from shaking or disengaging from the telescoping groove 27, thereby improving the protective performance of the protective cover 2.

[0030] In this embodiment, the two ends of the return spring 28 are fixedly connected with auxiliary plates 32, and the two auxiliary plates 32 are in abutment with the support cover 21 and the telescopic cover 22, respectively. The auxiliary plates 32 increase the contact area between the spring and the support cover 21 and the telescopic cover 22, allowing the force of the spring to be more evenly transmitted to the telescopic cover 22 and the support cover 21.

[0031] In this embodiment, the limiting plate 15 is arranged on the outer wall of the fixed ring 13, and the limiting plate 15 is located on the side of the fixed groove 14 away from the telescopic cover 22. The end of the connecting ring 24 away from the support cover 21 is in abutment with the limiting plate 15.

[0032] The limiting plate 15 is located on the side of the fixed groove 14 away from the telescopic cover 22, and the end of the connecting ring 24 away from the support cover 21 is in abutment with the limiting plate 15, which provides a clear positioning for the axial position of the connecting ring 24 on the fixed ring 13. It limits the movement of the connecting ring 24 in the direction away from the telescopic cover 22, ensuring that the connecting ring 24 does not move excessively in the direction away from the telescopic cover 22 due to external forces (such as vibration, impact, etc.), thereby ensuring the stability of the relative position between the protective cover 2 and the fixed ring 13. As a mechanical limiting device, the limiting plate 15 can effectively prevent the connecting ring 24 from accidentally falling off the fixed ring 13. During the operation of the device, especially in the case of high-speed rotation of the open-hole drill bit 1 which may generate a large vibration, this limiting effect is particularly important, which can avoid the loss of protection function of the protective cover 2 due to the disengagement of the connecting ring 24.

[0033] In this embodiment, the telescopic cover 22 is made of transparent material, and the user can observe the working condition of the internal open-hole drill bit 1 through the telescopic cover 22. This helps the operator to timely understand the progress of drilling, the state of the drill bit, and whether there are abnormal conditions, so as to make corresponding adjustments and treatments.

[0034] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A splash-proof hole-opening device, comprising a hole-opening drill bit (1), characterized in that, The drilling bit (1) is fitted with a protective cover (2). A waste spacer (23) is provided between the protective cover (2) and the drilling bit (1). The protective cover (2) is provided with a telescopic structure for matching the drilling depth. The drilling bit (1) is fixedly connected to a fixing ring (13) for connecting the protective cover (2). The fixing ring (13) and the protective cover (2) are detachably connected. The outer wall of the fixing ring (13) is provided with a fixing groove (14). The protective cover (2) A connecting ring (24) is provided at one end facing the fixed ring (13). The connecting ring (24) is sleeved on the outside of the fixed ring (13). The inner wall of the connecting ring (24) abuts against the outer wall of the fixed ring (13). The inner wall of the connecting ring (24) is provided with a plurality of telescopic balls (25) that can extend and retract into the connecting ring (24). The side of the telescopic ball (25) away from the fixed ring (13) is provided with a reset pad (26). The plurality of balls are embedded in the fixing groove (14).

2. The anti-splash opening device according to claim 1, characterized in that, The protective cover (2) includes a support cover (21) and a telescopic cover (22). The support cover (21) is detachably connected to the fixing ring (13). The telescopic structure includes a telescopic groove (27) and a return spring (28). The telescopic groove (27) is located at one end of the support cover (21) facing the telescopic cover (22). The telescopic groove (27) extends into the support cover (21). One end of the telescopic cover (22) is located inside the telescopic groove (27). The support cover (21) is provided with a limiting structure to prevent the telescopic cover (22) from falling out of the telescopic groove (27). The return spring (28) is located inside the telescopic groove (27). The two ends of the return spring (28) abut against the support cover (21) and the telescopic cover (22) respectively.

3. The anti-splash opening device according to claim 2, characterized in that, The limiting structure includes two limiting grooves (29) and two limiting blocks (30). The two limiting grooves (29) are located on both sides of the support cover (21), and the two limiting blocks (30) are fixedly connected to the telescopic cover (22). The two limiting blocks (30) are respectively located in the two limiting grooves (29). A limiting baffle (31) is provided at one end of the limiting groove (29) facing the telescopic cover (22).

4. The anti-splash opening device according to claim 2, characterized in that, Both ends of the reset spring (28) are fixedly connected to auxiliary plates (32), and the two auxiliary plates (32) abut against the support cover (21) and the telescopic cover (22) respectively.

5. The anti-splash opening device according to claim 1, characterized in that, The outer wall of the fixing ring (13) is provided with a limiting plate (15), the limiting plate (15) is located on the side of the fixing groove (14) away from the telescopic cover (22), and the end of the connecting ring (24) away from the support cover (21) abuts against the limiting plate (15).

6. The anti-splash opening device according to claim 2, characterized in that, The telescopic cover (22) is made of transparent material, allowing the user to observe the operation of the internal drilling bit (1) through the telescopic cover (22).

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