CN219004698U - Construction drill bit and mounting structure - Google Patents

Abstract

The utility model discloses a construction drill bit and a mounting structure, comprising a mounting structure and a drill bit structure detachably connected with the mounting structure, wherein the drill bit structure comprises a drill rod and a connecting rod which are integrally formed, and the outer wall of the connecting rod is symmetrically provided with grooves; the mounting structure is including rotating piece and the mounting that rotates the connection through the bearing, the lower extreme an organic whole that rotates is connected with the adapter sleeve, and the inside symmetry of adapter sleeve is inlayed and is had the stopper, and this stopper can block into in the recess to locking rotates piece and connecting rod realization quick connect, the groove of stepping down has been seted up to one side that the mounting is close to the stopper, and this internally mounted who steps down the groove has the shell fragment, and shell fragment and stopper closely laminate. According to the utility model, the connection locking operation of the rotating piece and the connecting rod is realized through the pure mechanical structure, so that the limitation that the locking installation can be realized only in the electrified state of the existing connecting structure is effectively solved, and the drill bit is more convenient to install with the drilling machine.

Description

Construction drill bit and mounting structure

Technical Field

The utility model relates to the technical field of drilling tools, in particular to a construction drill bit and a mounting structure.

Background

The construction drill is actually a percussion drill and is mostly used for drilling holes such as concrete masonry. In the drilling work, in order to realize obtaining the drilling of different apertures, the general rig body can be equipped with a plurality of drill bits of different sizes, and then conveniently change the drill bit according to actual processing needs.

Among the prior art, joint connection structure between common drill bit and the rig is as shown in the chinese patent application number CN201820975053.9 a machining drill bit mounting structure, and it is through setting up of drill bit installation axle, connecting piece, mounting groove, standing groove, electric putter, fixture block, draw-in groove, recess, spring, lug, spacing groove and stopper, has constructed a machining drill bit mounting structure jointly, wherein promotes the inner chamber that the fixture block got into the draw-in groove through electric putter, can carry out the chucking fixedly to the drill bit installation axle.

However, in this scheme, in order to realize the chucking to the drill bit, need utilize the consumer of electric putter class to drive clamp splice chucking or press from both sides tightly, not only the cost is higher, and makes whole drill bit when changing, need keep the state of being on and just can use, the limitation is great.

Therefore, we propose a construction drill bit and a mounting structure to solve the above problems.

Disclosure of Invention

The utility model aims to provide a construction drill bit and a mounting structure, which are used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a construction drill bit and mounting structure, includes mounting structure and the drill bit structure of detachable connection with mounting structure, the drill bit structure is including integrated into one piece's drilling rod and connecting rod, and the outer wall symmetry of connecting rod has seted up the recess;

the mounting structure is including rotating piece and the mounting that rotates the connection through the bearing, the lower extreme an organic whole that rotates is connected with the adapter sleeve, and the inside symmetry of adapter sleeve is inlayed and is had the stopper, and this stopper can block into in the recess to locking rotates piece and connecting rod realization quick connect, the groove of stepping down has been seted up to one side that the mounting is close to the stopper, and this internally mounted who steps down the groove has the shell fragment, and shell fragment and stopper closely laminate.

In a further embodiment, the limiting block adopts a sphere structure, and the groove adopts an arc-shaped groove structure matched with the limiting block.

In a further embodiment, a limiting groove is formed in the mounting position of the connecting sleeve and the limiting block, and the limiting groove is in a horn-shaped structure.

In a further embodiment, the top end of the connecting rod is integrally connected with a screw rod, and a screw hole matched with the screw rod is formed in the inner top of the connecting sleeve.

In a further embodiment, the screw and the threaded hole are threaded in a direction opposite to the rotational direction of the drill rod.

In a further embodiment, a sealing ring is mounted at the lower port of the fixing member, and the inner diameter of the sealing ring is equal to the outer diameter of the connecting rod.

In a further embodiment, the sealing ring is connected with the fixing member through a rotating ring, one side of the rotating ring is fixed with the sealing ring, and the other side of the rotating ring is connected with the fixing member in a rotating way.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the limiting block is arranged to stretch out and draw back relative to the groove under the elastic action of the elastic sheet, so that the limiting block can retract to reduce the insertion resistance to the connecting rod in the process of inserting the connecting rod into the connecting sleeve, and the clamping groove can be automatically ejected out after the connecting rod is completely inserted into the connecting sleeve, so that the connection locking operation of the rotating piece and the connecting rod is realized through a pure mechanical structure, the limitation that the locking installation of the existing connecting structure can be realized only in the electrified state is effectively solved, and the drill bit is more convenient to install with a drilling machine.

Drawings

FIG. 1 is a schematic elevational cross-sectional view of the present utility model;

FIG. 2 is a schematic perspective view of a drill bit according to the present utility model;

fig. 3 is a schematic cross-sectional elevation view of the mounting structure of the present utility model.

In the figure: 11. a drill rod; 12. a connecting rod; 121. a groove; 122. a screw; 21. a rotating member; 211. connecting sleeves; 2111. a limit groove; 212. a limiting block; 213. a screw hole; 22. a fixing member; 221. a seal ring; 222. a rotating ring; 223. a relief groove; 224. and the elastic sheet.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a construction drill bit and a mounting structure thereof, including a mounting structure and a drill bit structure detachably connected with the mounting structure, wherein the drill bit structure includes an integrally formed drill rod 11 and a connecting rod 12, the drill rod 11 is used for drilling, the connecting rod 12 is used for being connected with the mounting structure, and the outer wall of the connecting rod 12 is symmetrically provided with a groove 121, the groove 121 is recessed toward the axis of the connecting rod 12, the mounting structure includes a rotating member 21 and a fixing member 22 rotationally connected through a bearing, wherein the fixing member 22 is fixed with a machine body shell of the drilling machine, the rotating member 21 is coaxially connected and fixed with an internal driving shaft of the drilling machine, so that the rotating member 21 is driven to rotate relative to the fixing member 22 through an output shaft when the drilling machine is started, a connecting sleeve 211 is integrally connected with the lower end of the rotating member 21, the inner diameter of the connecting sleeve 211 is larger than the outer diameter of the connecting rod 12, the connecting rod 12 can be inserted into the connecting sleeve 211, and a limiting block 212 is symmetrically embedded into the groove 121 so as to lock the connecting rod 12 after the connecting sleeve 211, and the limiting block 212 can be blocked into the groove 121, so that the rotating member 21 and the connecting rod 12 can be quickly connected.

Referring to fig. 3, considering that the groove 121 is concave relative to the connecting rod 12, when the connecting rod 12 is inserted into the connecting sleeve 211, the limiting block 212 is extruded, therefore, a yielding groove 223 is formed on one side of the fixing member 22 close to the limiting block 212, a spring piece 224 is installed in the yielding groove 223, the yielding groove 223 and the spring piece 224 surround the inner ring of the fixing member 22, and the spring piece 224 is tightly attached to the limiting block 212 in a normal state because the spring piece 224 has a certain elasticity, so that the limiting block 212 is exposed out of the connecting sleeve 211, and just can be clamped into the groove 121, when the connecting rod 12 extrudes the limiting block 212, the limiting block 212 can compress the spring piece 224, the spring piece 224 is sunken into the yielding groove 223, and then a space is yielded inside the connecting sleeve 211, thereby facilitating the insertion of the connecting rod 12, and after the insertion is completed, the limiting block 212 can be automatically ejected out under the elastic action of the spring piece 224 and clamped into the groove 121, thereby completing the locking connection.

Referring to fig. 2-3, considering that when the connecting rod 12 is inserted into the connecting sleeve 211, sliding friction resistance with the limiting block 212 is larger, and the connecting rod is spliced and disassembled for a long time, abrasion of the limiting block 212 is easy to be aggravated, therefore, the limiting block 212 is in a spherical structure, the groove 121 adopts an arc-shaped groove structure matched with the limiting block 212, the mounting positions of the connecting sleeve 211 and the limiting block 212 are provided with limiting grooves 2111, the limiting block 212 can roll in the limiting grooves 2111, friction resistance is further reduced, the limiting grooves 2111 are in a horn-shaped structure, an opening of one side of the limiting grooves 2111, facing the outer side of the connecting sleeve 211, is larger, an opening of one side facing the inner side is smaller, compression and displacement of the limiting block 212 is facilitated, the limiting block 212 is prevented from being separated from the inside the limiting grooves 2111, and meanwhile the limiting block 212 can roll in the elastic sheet 224, and rotation of the auxiliary rotating piece 21 relative to the fixing piece 22 is facilitated.

Referring to fig. 2-3, in order to improve the connection stability between the connecting rod 12 and the connecting sleeve 211, the top end of the connecting rod 12 is integrally connected with the screw 122, and the inner top of the connecting sleeve 211 is provided with a screw hole 213 matching with the screw 122, the screw 122 can be screwed into the screw hole 213, so as to prevent the connecting rod 12 from being separated from the connecting sleeve 211 when the connecting rod 12 is stretched, and meanwhile, the screw tightening direction of the screw 122 and the screw hole 213 is opposite to the rotation direction of the drill rod 11 due to the fact that the drill bit can rotate, and therefore, the screwing state of the screw 122 and the screw hole 213 is ensured without separation when the drill bit rotates.

Referring to fig. 3, considering that the hole inside the installation structure is precise, in order to reduce dust particles entering the inside of the installation structure when the construction drill is drilled, a sealing ring 221 is installed at the lower end opening of the fixing member 22, the inner diameter of the sealing ring 221 is equal to the outer diameter of the connecting rod 12, so that the sealing ring is tightly attached to the connecting rod 12, dust is prevented from entering from a gap, meanwhile, considering that the connecting rod 12 needs to rotate relative to the fixing member 22, the sealing ring 221 is connected with the fixing member 22 through a rotating ring 222, one side of the rotating ring 222 is fixed with the sealing ring 221, and the other side of the rotating ring 222 is rotationally connected with the fixing member 22, so that the sealing ring 221 can keep a relatively static state with the connecting rod 12, and meanwhile, the rotating operation of the connecting rod 12 is not hindered.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. The utility model provides a build worker and bore drill bit and mounting structure, includes mounting structure and can dismantle the drill bit structure of being connected, its characterized in that with mounting structure: the drill bit structure comprises a drill rod (11) and a connecting rod (12) which are integrally formed, and grooves (121) are symmetrically formed in the outer wall of the connecting rod (12);

mounting structure is including rotating piece (21) and mounting (22) of being connected through the bearing rotation, the lower extreme an organic whole of rotating piece (21) is connected with adapter sleeve (211), and the inside symmetry of adapter sleeve (211) is inlayed and is had stopper (212), and in recess (121) can be gone into to this stopper (212) to locking rotates piece (21) and connecting rod (12) realization high-speed joint, the mounting (22) is close to one side of stopper (212) and has been seted up and step down groove (223), and the internally mounted in this step down groove (223) has shell fragment (224), and shell fragment (224) are closely laminated with stopper (212).

2. The construction drill bit and mounting structure according to claim 1, wherein: the limiting block (212) adopts a sphere structure, and the groove (121) adopts an arc-shaped groove structure matched with the limiting block (212).

3. The construction drill bit and mounting structure according to claim 1, wherein: a limit groove (2111) is formed in the installation position of the connecting sleeve (211) and the limit block (212), and the limit groove (2111) is in a horn-shaped structure.

4. The construction drill bit and mounting structure according to claim 1, wherein: the top of the connecting rod (12) is integrally connected with a screw (122), and a screw hole (213) matched with the screw (122) is formed in the inner top of the connecting sleeve (211).

5. The construction drill bit and mounting structure according to claim 4, wherein: the screwing direction of the screw (122) and the screw hole (213) is opposite to the rotation direction of the drill rod (11).

6. The construction drill bit and mounting structure according to claim 1, wherein: a sealing ring (221) is arranged at the lower port of the fixing piece (22), and the inner diameter of the sealing ring (221) is equal to the outer diameter of the connecting rod (12).

7. The construction drill bit and mounting structure according to claim 6, wherein: the sealing ring (221) is connected with the fixing piece (22) through a rotating ring (222), one side of the rotating ring (222) is fixed with the sealing ring (221), and the other side of the rotating ring is connected with the fixing piece (22) in a rotating mode.

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