CN215409599U

CN215409599U - Sleeve structure and engineering machinery

Info

Publication number: CN215409599U
Application number: CN202121070783.2U
Authority: CN
Inventors: 薛志成
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-01-04
Anticipated expiration: 2031-05-18

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a sleeve structure and engineering machinery. The sleeve structure includes: an inner sleeve; the outer sleeve is sleeved on the inner sleeve and provided with a guide groove and a fixing groove communicated with the guide groove, and the length of the fixing groove along the circumferential direction of the outer sleeve is greater than that of the guide groove along the circumferential direction of the outer sleeve; the stop block comprises a fixed block and a movable block, the fixed block is arranged on the outer wall of the inner sleeve, and the movable block is suitable for being fixed in a fixing groove located on the outer side of the fixed block after the fixed block slides into the fixing groove so as to prevent the inner sleeve from falling off from the outer sleeve. According to the technical scheme, the movable block is fixed in the fixing groove positioned on the outer side of the fixed block, when the outer sleeve rotates reversely, the situation that the inner sleeve falls off from the outer sleeve is avoided, and the connection is firmer and more reliable.

Description

Sleeve structure and engineering machinery

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a sleeve structure and engineering machinery.

Background

At present, in most of full casing work progress, the bushing type all is bolted connection, and bolt installation and dismantlement are inconvenient, waste time and energy, and the bolt belongs to vulnerable part, and the price is higher.

The prior art discloses a drill casing combined structure convenient to connect, which comprises an outer casing and an inner casing, wherein tracks and holes are uniformly arranged on the inner side wall of the outer casing, the holes are arranged above the tracks, and the width of the holes is greater than that of the tracks; the fixed block is arranged on the outer side wall of the inner sleeve, the width of the fixed block is smaller than that of the track, the height of the fixed block is smaller than that of the hole, the outer sleeve and the inner sleeve are connected simply and conveniently, and the falling accident is easy to happen when the outer sleeve rotates reversely.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a casing pipe structure and engineering machinery, and aims to solve the problem that in the prior art, a falling accident is easy to happen when an outer casing pipe is reversely rotated.

To achieve the above object, the present invention provides a casing structure comprising: an inner sleeve; the outer sleeve is sleeved on the inner sleeve and provided with a guide groove and a fixing groove communicated with the guide groove, and the length of the fixing groove along the circumferential direction of the outer sleeve is greater than that of the guide groove along the circumferential direction of the outer sleeve; the stop block comprises a fixed block and a movable block, the fixed block is arranged on the outer wall of the inner sleeve, and the movable block is suitable for being fixed in a fixing groove located on the outer side of the fixed block after the fixed block slides into the fixing groove so as to prevent the inner sleeve from falling off from the outer sleeve.

Optionally, the movable block is hinged to the fixed block, and the movable block has an avoidance state in which the avoidance fixed block slides into the guide groove and a fixed state in which the avoidance fixed block is fixed to the inner sleeve.

Optionally, the movable block is detachably arranged on the inner sleeve.

Optionally, the movable block comprises a magnetic element for enhancing the fixation of the movable block to the inner sleeve.

Optionally, the movable block is provided with a mounting hole, and the mounting hole is used for mounting the magnetic member.

Optionally, the fixed groove and the guide groove form a T shape, and the movable block and the fixed block are both in an inverted L shape.

Optionally, the fixed groove and the guide groove form an inverted L shape, and the movable block and the fixed block are rectangular.

Optionally, the movable block is hinged to the outer sleeve, and the movable block has an avoiding state in which the avoiding fixed block slides into the guide groove and a fixed state in which the avoiding fixed block is fixed to the inner sleeve.

The present invention also provides an engineering machine, including: the above-mentioned sleeve structure.

Optionally, the work machine is a drilling rig.

The technical scheme of the utility model has the following advantages: during bushing, align the guide slot of outer tube with interior epaxial fixed block of sleeve, then slowly transfer the outer tube, during the fixed block slided in the guide slot, when treating the fixed block and slided in the fixed slot, rotatory outer tube for the fixed block card is in the fixed slot, then fixes the movable block in the fixed slot that is located the outside of fixed block, and during the reverse rotation outer tube, the condition that interior sleeve pipe drops from the outer tube can not appear, connects more firmly reliably.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 shows a schematic front view of an inner casing of a casing structure of the utility model;

fig. 2 shows a schematic top view of the inner sleeve of fig. 1;

FIG. 3 shows a front view schematic of a stop of the bushing arrangement of FIG. 1;

FIG. 4 shows a top schematic view of the stop of FIG. 3;

FIG. 5 shows a front view schematic of an outer sleeve of the sleeve structure of FIG. 1;

fig. 6 shows a schematic top view of the outer sleeve of fig. 5.

Description of reference numerals:

10. an inner sleeve; 20. an outer sleeve; 21. a guide groove; 22. fixing grooves; 30. a stopper; 31. a fixed block; 32. a movable block; 33. a U-shaped piece; 40. a magnetic member.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 6, the sleeve structure of the present embodiment includes an inner sleeve 10, an outer sleeve 20 and a stopper 30, wherein the outer sleeve 20 is sleeved on the inner sleeve 10, the outer sleeve 20 has a guide groove 21 and a fixing groove 22 communicated with the guide groove 21, and a length of the fixing groove 22 along a circumferential direction of the outer sleeve 20 is greater than a length of the guide groove 21 along the circumferential direction of the outer sleeve 20; the stopper 30 includes a fixed block 31 and a movable block 32, the fixed block 31 is disposed on the outer wall of the inner sleeve 10, and the movable block 32 is adapted to be fixed in the fixing groove 22 located outside the fixed block 31 after the fixed block 31 slides into the fixing groove 22, so as to prevent the inner sleeve 10 from falling off the outer sleeve 20.

Use the bushing structure of this embodiment, during bushing, align guide slot 21 with the fixed block 31 on the interior sleeve pipe of outer tube 20, then slowly transfer outer tube 20, fixed block 31 slides in guide slot 21, when treating fixed block 31 slides in fixed slot 22, rotatory outer tube 20 for fixed block 31 card is in fixed slot 22, then fix movable block 32 in the fixed slot 22 that is located the outside of fixed block 31, when the reverse rotation outer tube 20, the condition that interior sleeve pipe drops from the outer tube can not appear, connect more firmly reliably.

In the present embodiment, as shown in fig. 3 and 4, the movable block 32 is hinged to the fixed block 31, and the movable block 32 has an escape state in which the fixed block 31 slides into the guide groove 21 and a fixed state in which it is fixed to the inner tube 10. During the bushing, laminate the movable block 32 on fixed block 31, after fixed block 31 slided into fixed slot 22, rotate the movable block 32 180 degrees for the movable block 32 is arranged in the fixed slot 22 in the outside of fixed block 31, then fixes the movable block 32 on interior sleeve pipe 10, and the movable block 32 articulates on fixed block 31, the condition that the movable block lost can not appear. Preferably, the movable block 32 and the fixed block 31 are connected by a U-shaped member 33. Of course, the movable block 32 and the fixed block 31 may be connected by a hinge or the like.

In this embodiment, the movable block 32 can be dismantled and set up on interior sleeve pipe 10, when needs are dismantled or are changed, dismantle the movable block 32 from interior sleeve pipe 10, then rotate 180 degrees with the movable block 32 and paste on fixed block 31, the certain angle of reverse rotation outer tube 20, directly upwards extract with outer tube 20 can, convenient to detach and change.

In this embodiment, the movable block 32 includes the magnetic part 40, and the magnetic part 40 is used for strengthening the fixed action of movable block 32 and interior sleeve pipe 10, because interior sleeve pipe 10 is steel material, the magnetic part 40 adsorbs on interior sleeve pipe 10 through the appeal, strengthens the fixed action of movable block and interior sleeve pipe, can not cut the movable block and easily break away from interior sleeve pipe because mud, gravel are scraped to pieces, also need not the instrument to carry out the dismouting to the movable block 32, improves connection efficiency. The magnetic member 40 is a magnet or the like. Of course, the movable block 32 and the inner sleeve 10 may be connected by screws or the like.

In this embodiment, the movable block 32 is provided with a mounting hole for mounting the magnetic member 40, and the magnetic member 40 is directly attached to the outer wall of the inner sleeve, so as to enhance the connection strength. The magnetic part and the mounting hole are both circular and the like. Of course, the mounting hole may not be provided, and the magnetic member may be directly mounted on the movable block 32 as long as the magnetic member can be attached to the inner tube 10.

In the present embodiment, as shown in fig. 3 and 5, the fixing groove 22 and the guide groove 21 form a T-shaped groove, and the movable block 32 and the fixed block 31 each have an inverted L-shape. As an alternative embodiment, the fixing groove 22 and the guide groove 21 are formed in an inverted L shape, and the movable block 32 and the fixed block 31 are rectangular.

In this embodiment, the fixing block 31 and the inner sleeve 10 may be integrally formed. Of course, the fixing block 31 may be connected to the inner tube 10 by welding or the like.

As an alternative embodiment, the movable block 32 is hinged on the outer sleeve 20, the movable block 32 has an avoiding state that the avoiding fixed block 31 slides into the guide groove 21 and a fixing state that the movable block 32 is fixed on the inner sleeve 10, when the sleeve is connected, the guide groove 21 of the outer sleeve 20 is aligned with the fixed block 31 on the inner sleeve, then the outer sleeve 20 is slowly lowered, the fixed block 31 slides into the guide groove 21, when the fixed block 31 slides into the fixing groove 22, the outer sleeve 20 is rotated, so that the fixed block 31 is clamped in the fixing groove 22, then the movable block 32 is rotated, so that the movable block 32 is fixed in the fixing groove 22 located on the outer side of the fixed block 31, when the outer sleeve 20 is rotated reversely, the inner sleeve does not fall off from the outer sleeve, and the connection is firmer and more reliable.

The present invention also provides an engineering machine, including: the above-mentioned sleeve structure. During bushing, align guide slot 21 with the fixed block 31 on the interior sleeve pipe of outer tube 20, then slowly transfer outer tube 20, fixed block 31 slides in guide slot 21, when treating fixed block 31 slides in fixed slot 22, rotatory outer tube 20 for fixed block 31 card is in fixed slot 22, then fix movable block 32 in the fixed slot 22 that is located the outside of fixed block 31, during the reverse rotation outer tube 20, the condition that interior sleeve pipe drops from the outer tube can not appear, connect more firmly reliably.

In the present embodiment, the construction machine is a drilling machine or the like. The drilling machine is a rotary drilling machine, a percussion drilling machine and the like.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the inner sleeve and the outer sleeve are connected with the stop block through the T-shaped groove, so that the inner sleeve and the outer sleeve are conveniently, quickly and reliably connected, and the functions of connection of the inner sleeve and the outer sleeve and torque transmission and pressure transmission are realized.

2. Be equipped with magnet on the dog, the dismouting is convenient.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A sleeve structure, comprising:

an inner sleeve (10);

the outer sleeve (20) is sleeved on the inner sleeve (10), the outer sleeve (20) is provided with a guide groove (21) and a fixing groove (22) communicated with the guide groove (21), and the length of the fixing groove (22) along the circumferential direction of the outer sleeve (20) is larger than the length of the guide groove (21) along the circumferential direction of the outer sleeve (20);

the stop block (30) comprises a fixed block (31) and a movable block (32), the fixed block (31) is arranged on the outer wall of the inner sleeve (10), and the movable block (32) is suitable for being fixed in the fixing groove (22) located on the outer side of the fixed block (31) after the fixed block (31) slides into the fixing groove (22) so as to prevent the inner sleeve (10) from falling off from the outer sleeve (20).

2. The bushing arrangement according to claim 1, characterized in that the movable block (32) is hinged to the fixed block (31), the movable block (32) having an escape position in which it escapes the fixed block (31) and slides into the guide groove (21) and a fixed position in which it is fixed to the inner bushing (10).

3. The bushing arrangement according to claim 1, characterized in that the movable block (32) is detachably arranged on the inner bushing (10).

4. The bushing arrangement according to claim 3, characterized in that the movable mass (32) comprises magnetic means (40), the magnetic means (40) being adapted to enhance the fixation of the movable mass (32) to the inner bushing (10).

5. Bushing structure in accordance with claim 4 characterized in that said movable block (32) is provided with mounting holes for mounting said magnetic elements (40).

6. The bushing structure of claim 1, wherein the stationary groove (22) and the guide groove (21) form a T-shape, and the movable block (32) and the stationary block (31) each have an inverted L-shape.

7. Bushing structure in accordance with claim 1 characterized in that the stationary groove (22) and the guide groove (21) form an inverted L-shape, the movable block (32) and the stationary block (31) each being rectangular.

8. The bushing arrangement according to claim 1, characterized in that the movable block (32) is hinged to the outer bushing (20), the movable block (32) having an escape position in which it escapes the fixed block (31) and slides into the guide groove (21) and a fixed position in which it is fixed to the inner bushing (10).

9. A work machine, comprising: the bushing structure of any of claims 1-8.

10. The work machine of claim 9, wherein the work machine is a drilling rig.