Coring machine

Abstract

The utility model discloses a coring machine which comprises a supporting frame, a lifting assembly, a protective cover and a limiting rod, the lifting assembly is arranged in the supporting frame and can slide up and down in the axial direction of the supporting frame, the protective cover is fixedly connected with one side of the lifting assembly, and the limiting rod is connected with one side of the bottom end of the lifting assembly in a sliding mode. One end of the limiting rod is used for sliding in the direction of the protective cover and abuts against the bottom end of the protective cover, and the limiting rod is slidably connected with the bottom end of the lifting assembly, so that when the limiting rod slides in the direction of the protective cover, the part, extending out of the bottom end of the lifting assembly, of the limiting rod can play a role in supporting the protective cover; and therefore, the protective cover is always located above the limiting rod, the situation that the protective cover influences the operation space below the lifting assembly is avoided, and a worker can assemble or disassemble different coring barrels according to different requirements conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of core drills, and particularly relates to a core drill. Background Art

[0002] A concrete core drill is a device for drilling and sampling concrete. During operation, in order to prevent the coolant and fragmented concrete from splashing and polluting the environment due to the highly rotating drill bit, a related protective cover is usually sleeved outside the drill bit. For example, the utility model patent with the authorization announcement number CN216116840U and the name of a core drill includes a chassis. Both sides of the top of the chassis are connected with fixed rods. A lifting structure is slidably connected to the fixed rods. A core barrel is movably screwed to the bottom of the lifting structure. Protective components are arranged on both sides of the chassis. The protective component includes a vertical plate fixed to the chassis. An electric slide rail is arranged on the vertical plate. An electric slider is slidably connected to the electric slide rail. An electric push rod is connected to one side of the electric slider. A protective cover is arranged at one end of the electric push rod. The electric push rod and the protective cover are connected through a connecting piece. Through the mutual cooperation of structures such as the controller, the electric slide rail, the electric push rod and the protective cover, the core barrel can be surrounded. Thus, the water stains at the core barrel are thrown inside the protective cover and will not splash on the staff.

[0003] However, in the above utility model, since the protective component is located below the core barrel, the operating space below the core barrel becomes smaller, which is not convenient for the staff to assemble or disassemble the core barrel. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical deficiencies, and propose a core drill to solve the technical problem that the protective component in the prior art reduces the operating space for assembling the core barrel.

[0005] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, the utility model provides a core drill, including:

[0007] A support frame;

[0008] A lifting component, which is arranged inside the support frame and can slide up and down along the axial direction of the support frame;

[0009] A protective cover, which is fixedly connected to one side of the lifting component;

[0010] A limiting rod, which is slidably connected to one side of the bottom end of the lifting component, and one end of the limiting rod is used to slide towards the protective cover and abut against the bottom end of the protective cover.

[0011] In some embodiments, there are two support frames, and two ends of the lifting assembly are respectively slidably connected to the two support frames.

[0012] In some embodiments, a connecting plate is fixedly connected to the tops of the two support frames. The connecting plate is provided with a through hole, and the lifting assembly is provided with a threaded hole. A screw rod is sleeved between the through hole and the threaded hole.

[0013] In some embodiments, a hand wheel is fixedly connected to the top end of the screw rod.

[0014] In some embodiments, the lifting assembly includes a lifting plate and a receiving box, and the bottom of the lifting plate is fixedly connected to the top of the receiving box.

[0015] In some embodiments, a driving member is connected to the top of one end of the receiving box.

[0016] In some embodiments, a core barrel is connected to the bottom of the other end of the receiving box.

[0017] In some embodiments, a sliding groove is formed in the outer wall of the receiving box, and a protrusion is provided on the inner wall of the protective cover. The protrusion is slidably sleeved in the sliding groove.

[0018] In some embodiments, the protective cover is formed by sequentially sleeving a plurality of protective sheets.

[0019] In some embodiments, a bottom plate is fixedly connected to the bottom of the support frame, and rollers are provided at the bottom of the bottom plate.

[0020] In a second aspect, the present invention further provides a core drill.

[0021] Compared with the prior art, in a core drill provided by the present invention, by slidably connecting a limiting rod to the bottom end of the lifting assembly, when the limiting rod slides towards the protective cover, the part of the limiting rod extending out of the bottom end of the lifting assembly can support the protective cover, so that the protective cover is always located above the limiting rod, avoiding the protective cover from affecting the operation space below the lifting assembly, and facilitating the staff to assemble or disassemble different core barrels according to different requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a core drill provided by an embodiment of the present invention Figure 1 (the protective cover is in the unfolded state);

[0023] Figure 2 is a schematic structural diagram of a core drill provided by an embodiment of the present invention Figure 2 (the protective cover is in the contracted state);

[0024] Figure 3 isFigure 2 Schematic diagram of the connection relationship among the middle support frame, the lifting assembly and the limiting rod (excluding the driving member).

[0025] Description of the reference numerals: 1, support frame; 11, bottom plate; 12, connecting plate; 121, through hole; 13, roller; 2, lifting assembly; 21, channel; 22, threaded hole; 23, screw rod; 231, hand wheel; 24, receiving box; 241, driving member; 242, core barrel; 243, sliding groove; 25, lifting plate; 3, protective cover; 31, protrusion; 32, protective sheet; 4, limiting rod. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0027] In order to solve the technical problem that the protective assembly reduces the operating space for assembling the core barrel, the present utility model provides a core drill, which can avoid the protective assembly from affecting the operating space for assembling or disassembling the core barrel.

[0028] It should be noted that the core drill described in the present utility model is used for but not limited to concrete drilling, etc. For the convenience of description, in the present utility model, only a core drill applied to concrete drilling is taken as an example for description, and the principle of a core drill applied to other types of equipment is substantially the same as that applied to concrete drilling, and will not be elaborated herein one by one.

[0029] Please refer to Figure 1 - Figure 3 , a core drill includes a support frame 1, a lifting assembly 2, a protective cover 3 and a limiting rod 4. The lifting assembly 2 is arranged in the support frame 1 and can slide up and down along the axial direction of the support frame 1. The protective cover 3 is fixedly connected to one side of the lifting assembly 2. The limiting rod 4 is slidably connected to one side of the bottom end of the lifting assembly 2, and one end of the limiting rod 4 is used to slide towards the protective cover 3 and abut against the bottom end of the protective cover 3.

[0030] In this embodiment, by slidably connecting the limiting rod 4 to the bottom end of the lifting assembly 2, when the limiting rod 4 slides towards the protective cover 3, the part of the limiting rod 4 extending out of the bottom end of the lifting assembly 2 can support the protective cover 3, so that the protective cover 3 is always located above the limiting rod 4, avoiding the protective cover 3 from affecting the operating space below the lifting assembly 2, and facilitating the staff to assemble or disassemble different core barrels 242 according to different requirements.

[0031] When the device does not need to work, the protective cover 3 rises upwards, and the limiting rod 4 extends out of the bottom end of the lifting assembly 2, so that the protective cover 3 stays above the limiting rod 4;

[0032] When the device needs to work, the limiting rod 4 retracts to the bottom end of the lifting assembly 2, and the protective cover 3 moves downward under its own gravity until the bottom of the protective cover 3 abuts against the ground, so that the protective cover 3 completely covers the core barrel 242. At the same time, the lifting assembly 2 drives the core barrel 242 to move downward along the support frame 1, and the protective cover 3 will gradually rise, so that the whole core-taking process is in a covered state.

[0033] Furthermore, a channel 21 is formed at the bottom end of the lifting assembly 2, and the limiting rod 4 is slidably sleeved in the channel 21.

[0034] In one embodiment, please refer to Figure 1 - Figure 2 , there are two support frames 1, and both ends of the lifting assembly 2 are slidably connected to the two support frames 1. In this embodiment, the two support frames 1 are arranged oppositely, and the function of the support frame 1 is to assist the lifting assembly 2 to realize the lifting function.

[0035] Furthermore, in order to improve the stability of the support frame 1, inclined reinforcing ribs are fixedly connected to both support frames 1.

[0036] In one embodiment, please refer to Figure 1 - Figure 2 , a connecting plate 12 is fixedly connected to the tops of the two support frames 1. A through hole 121 is formed in the connecting plate 12, and a screw rod 23 is sleeved between the through hole 121 and a threaded hole 22 formed in the lifting assembly 2. In this embodiment, the through hole 121 and the threaded hole 22 are coaxially arranged. One end of the screw rod 23 passes through the through hole 121 from bottom to top, and the other end of the screw rod 23 passes through the threaded hole 22 from top to bottom. The screw rod 23 is threadedly connected to the threaded hole 22, so that when the screw rod 23 rotates, the lifting assembly 2 will move up and down according to the different rotation directions of the screw rod 23.

[0037] In one embodiment, please refer to Figure 1 - Figure 2 , a hand wheel 231 is fixedly connected to the top end of the screw rod 23. In this embodiment, the function of the hand wheel 231 is to facilitate the staff to rotate the screw rod 23 through the hand wheel 231.

[0038] In one embodiment, please refer to Figure 1 - Figure 3 , the lifting assembly 2 includes a lifting plate 25 and a containing box 24, and the bottom of the lifting plate 25 is fixedly connected to the top of the containing box 24. In this embodiment, the core barrel 242 and the driving member 241 are connected by gear transmission. The function of the containing box 24 is to provide a containing space for the gears that transmit power, so that the power of the driving member 241 is transmitted to the core barrel 242 through the various gears in the containing box 24, thereby driving the core barrel 242 to rotate.

[0039] Further, the lifting plate 25 and the receiving box 24 are both provided with threaded holes 22 and are coaxially arranged with the through holes 121 of the connecting plate 12.

[0040] In one embodiment, please refer to Figure 1 - Figure 2 , a driving member 241 is connected to the top of one end of the receiving box 24. In this embodiment, the function of the driving member 241 is to provide a driving force for the rotation of the core barrel 242.

[0041] In one embodiment, please refer to Figure 1 - Figure 3 , the core barrel 242 is connected to the bottom of the other end of the receiving box 24. In this embodiment, the core barrel 242 is detachably connected to the bottom of the receiving box 24, and the staff can replace the core barrel 242 of different sizes according to needs.

[0042] In one embodiment, please refer to Figure 3 , a sliding groove 243 is provided on the outer wall of the receiving box 24, and a protrusion 31 is provided on the inner wall of the protective cover 3. The protrusion 31 is slidably sleeved in the sliding groove 243. In this embodiment, the protrusion 31 can move downward along the direction of the sliding groove 243 under its own gravity, thereby driving the protective cover 3 to move downward. When the protrusion 31 abuts against the end of the sliding groove 243, the protective cover 3 stops descending, and the protective cover 3 covers the core barrel 242, effectively preventing the splashing of water stains.

[0043] It should be noted that the bottom of the protective cover 3 abuts against the ground, and the protective cover 3 will rise as the core barrel 242 descends.

[0044] Further, the arrangement of the protrusion 31 and the sliding groove 243 facilitates the staff to assemble or disassemble the protective cover 3. During assembly, only the protrusion 31 needs to be aligned with the sliding groove 243 and placed in it; during disassembly, the protective cover 3 is lifted upward until the protrusion 31 is disengaged from the sliding groove 243. The whole process is convenient and fast.

[0045] In one embodiment, please refer to Figure 1 - Figure 2 , the protective cover 3 is formed by sequentially sleeving a plurality of protective sheets 32. In this embodiment, the diameters of the respective protective sheets 32 increase in sequence, and the protective sheets 32 with adjacent diameters are slidably sleeved with each other, so that the diameter of the protective cover 3 increases sequentially from top to bottom, forming an isolation area that can completely cover the entire core barrel 242.

[0046] Further, when the protective cover 3 is not needed, during the assembly or disassembly of the core barrel 242, the protective cover 3 can contract, so that the respective protective sheets 32 can be stacked in a way that one ring is nested within another, facilitating the storage of the protective cover 3 and effectively reducing the space occupancy rate of the protective cover 3.

[0047] In one of the embodiments, refer to Figure 1 - Figure 3 , a bottom plate 11 is fixedly connected to the bottom of the support frame 1, and rollers 13 are provided at the bottom of the bottom plate 11. In this embodiment, the function of the rollers 13 is to facilitate the movement of the device.

[0048] Furthermore, the rollers 13 all adopt rollers 13 with a self-locking function, effectively avoiding the shaking of the bottom plate 11 and affecting the stable operation of the core barrel 242.

[0049] To better understand the present utility model, the following combines Figures 1 to 3 to elaborate on the technical solution of the present utility model in detail:

[0050] When it is necessary to assemble or disassemble the core barrel 242, the protective cover 3 contracts upward, and each protective piece 32 rises one by one, so that the protective pieces 32 are stacked in a manner of one ring nested within another. The limiting rod 4 extends out of the channel 21, causing the protective cover 3 to stay above the limiting rod 4, effectively avoiding the protective cover 3 from affecting the operation space for assembling or disassembling the core barrel 242;

[0051] When the core barrel 242 needs to work, the limiting rod 4 retracts into the channel 21, and the protective cover 3 moves downward under its own gravity until the bottom of the protective cover 3 abuts against the ground, causing the protective cover 3 to completely cover the core barrel 242. The driving member 241 is activated to drive the core barrel 242 to rotate. At the same time, the worker rotates the handwheel 231, causing the lifting plate 25 and the accommodation box 24 to drive the core barrel 242 to move downward along the support frame 1. The protective pieces 32 from bottom to top will gradually rise and stack together, so that the entire core-taking process is in a covered state.

[0052] The above specific implementation manners of the present utility model do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A coring machine, characterized in that: include: Support frame; A lifting assembly, the lifting assembly is arranged in the support frame and can slide up and down along the axial direction of the support frame; A protective cover, the protective cover is fixedly connected to one side of the lifting assembly; A limit rod is slidably connected to one side of the bottom end of the lifting assembly, and one end of the limit rod is used to slide toward the protective cover and abut against the bottom end of the protective cover.

2. A coring machine according to claim 1, characterized in that: There are two support frames, and two ends of the lifting assembly are slidably connected to the two support frames respectively.

3. A coring machine according to claim 1, characterized in that: A connecting plate is fixedly connected to the tops of the two support frames, the connecting plate is provided with a through hole, the lifting assembly is provided with a threaded hole, and a screw is sleeved between the through hole and the threaded hole.

4. A coring machine according to claim 3, characterized in that: The top end of the screw rod is fixedly connected with a hand wheel.

5. A coring machine according to claim 1, characterized in that: The lifting assembly comprises a lifting plate and a containing box, and the bottom of the lifting plate is fixedly connected to the top of the containing box.

6. A coring machine according to claim 5, characterized in that: The top of one end of the containing box is connected with a driving member.

7. A coring machine according to claim 6, characterized in that: The bottom of the other end of the containing box is connected to the core barrel.

8. A coring machine according to claim 5, characterized in that: The outer wall of the containing box is provided with a slide groove, the inner wall of the protective cover is provided with a protrusion, and the protrusion is slidably sleeved in the slide groove.

9. A coring machine according to claim 1, characterized in that: The protective cover is formed by a plurality of protective sheets which are sleeved in sequence.

10. A coring machine according to claim 1, characterized in that: The bottom of the support frame is fixedly connected with a bottom plate, and the bottom of the bottom plate is provided with rollers.

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