CN215718541U - Locking structure and elevator of elevator - Google Patents

Abstract

The utility model discloses a locking mechanism of an elevator and the elevator, wherein the elevator comprises a main body part, a valve and a latch, the main body part is rotationally connected with the valve, the latch is rotationally connected with the main body part, and the locking mechanism comprises a locking pin shaft, a first elastic part, a first threaded connecting part and a first lining; the part of the first lining is positioned in the accommodating space, the first lining is provided with a first connecting hole, the first threaded connecting piece is in threaded connection with the locking pin shaft through the first connecting hole, and the first lining is connected with the locking pin shaft through the first threaded connecting piece; the first lining can move along the axis direction of the locking pin shaft relative to the valve, the valve is provided with a containing hole, the part of the locking pin shaft penetrates through the containing hole, the first elastic part is located in the containing hole and sleeved on the locking pin shaft, the valve is elastically connected with the locking pin shaft through the first elastic part, the first elastic part can drive the locking pin shaft and the first lining to move, and the locking pin shaft can lock the valve and the lock latch. The relatively poor problem of security of elevator can be solved to above-mentioned scheme.

Description

Locking structure and elevator of elevator

Technical Field

The utility model relates to the technical field of underground elevators, in particular to a locking structure of an elevator and the elevator.

Background

The elevator is sleeved outside a drill pipe structure, an oil pipe and other pipe columns in the automatic operation of oil and natural gas well workover and is used for hanging, lifting and putting the pipe columns.

In the related art, since the latch and the valve of the elevator are usually driven by hydraulic pressure, when the hydraulic elevator suspends the tubular column, the latch and the valve of the elevator are easily opened accidentally due to accidental cutting of a hydraulic oil path, misoperation of an operator or vibration of the hydraulic oil path, so that the tubular column falls down, and a serious safety accident is caused. The safety performance of the related art elevator is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a locking structure of an elevator and the elevator, which aim to solve the problem of poor safety performance of the elevator.

In order to solve the problems, the utility model adopts the following technical scheme:

the elevator comprises a main body part, a valve and a latch, wherein the main body part is rotatably connected with the valve, the latch is rotatably connected with the main body part, the valve and the main body part enclose an accommodating space under the condition that the valve is in a closed state, and the locking mechanism comprises a locking pin shaft, a first elastic part, a first threaded connecting part and a first lining;

the part of the first lining is positioned in the accommodating space, the first lining is provided with a first connecting hole, the first threaded connecting piece is in threaded connection with the locking pin shaft through the first connecting hole, and the first lining is connected with the locking pin shaft through the first threaded connecting piece;

the first lining can move along the axis direction of the locking pin shaft relative to the valve, the valve is provided with a containing hole, the part of the locking pin shaft penetrates through the containing hole, the first elastic part is located in the containing hole and sleeved on the locking pin shaft, the valve is elastically connected with the locking pin shaft through the first elastic part, the first elastic part can drive the locking pin shaft and the first lining to move, and the locking pin shaft can lock the valve and the lock latch.

An elevator comprises the locking mechanism.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

in the locking mechanism of the elevator disclosed by the utility model, the first lining can move along the direction of the locking pin shaft relative to the valve. Therefore, when the elevator hoists the pipe column, the pipe column is located in the accommodating space, the elevator moves downwards under the action of gravity of the pipe column in the lifting process, the first lining drives the locking pin shaft to move, and the locking pin shaft locks the valve and the lock bolt, so that the valve and the lock bolt are prevented from being opened. When the pipe string is removed from the first liner, the first elastic member recovers its shape and drives the first liner upward, thereby contacting the latch and the shutter. In the scheme, when the elevator suspends the tubular column in the hanging mode, the valve and the latch can be locked through the locking pin shaft, so that the valve and the latch can be prevented from being opened mistakenly, and the safety performance of the elevator is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of an elevator disclosed in an embodiment of the present invention;

FIG. 2 is a top view of an elevator disclosed in accordance with an embodiment of the present invention;

figures 3 and 4 are cross-sectional views of an elevator disclosed in an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an elevator illustrating a closed state of a shutter according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of an elevator illustrating an opened state of a shutter according to an embodiment of the present invention;

figure 7 is a cross-sectional view of a portion of the components of an elevator disclosed in an embodiment of the present invention.

Description of reference numerals:

100-main body part, 200-valve, 210-accommodating hole, 211-first hole section, 212-second hole section, 213-third hole section, 220-guide hole, 230-notch, 300-latch, 310-rotating body, 320-lug plate, 321-through hole, 411-locking pin shaft, 412-first elastic element, 413-first threaded connector, 420-first lining, 421-first connecting hole, 422-first plate section, 423-second plate section, 431-first limiting element, 432-second limiting element, 441-second threaded connector, 442-guide pin shaft, 443-second elastic element, 450-second lining, 460-sensor, 212-sensor,

500-pipe column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 7, the embodiment of the present invention discloses a locking mechanism of an elevator for locking a trap 200 and a latch 300 when an elevator suspends a pipe string 500 (a general term for tubular and cylindrical members), thereby preventing the trap 200 and the latch 300 from being opened unintentionally. The elevator may include a body 100, a shutter 200, and a latch 300, the body 100 being rotatably connected to the shutter 200, the latch 300 being rotatably connected to the body 100. In the case of the shutter 200 in the closed state, the shutter 200 encloses an accommodation space with the body part 100. The receiving space is used to receive the pipe string 500.

The disclosed locking mechanism includes a locking pin 411, a first elastic member 412, a first threaded connection 413, and a first liner 420. A portion of the first liner 420 is located in the receiving space, that is, the first liner 420 is located inside the shutter 200. The first inner liner 420 has a first connection hole 421, the first threaded connector 413 is threadedly connected to the locking pin 411 through the first connection hole 421, and the first inner liner 420 is connected to the locking pin 411 through the first threaded connector 413.

The first liner 420 is movable in an axial direction of the locking pin shaft 411 with respect to the shutter 200. The shutter 200 is opened with the receiving hole 210, and a portion of the locking pin 411 passes through the receiving hole 210, while the locking pin 411 moves in the receiving hole 210 along the axial direction thereof. The first elastic member 412 is located in the receiving hole 210 and sleeved on the locking pin 411. The shutter 200 is elastically connected to the locking pin 411 through a first elastic member 412, and the first elastic member 412 can drive the locking pin 411 and the first liner 420 to move. Locking pin 411 may lock shutter 200 and latch 300.

In a specific operation process, when the elevator hoists the pipe string 500, the pipe string 500 is located in the accommodating space, and the elevator is lifted, the first liner 420 moves downward under the action of gravity of the pipe string 500 and drives the locking pin shaft 411 to move, and the locking pin shaft 411 locks the shutter 200 and the latch 300, so that the shutter 200 and the latch 300 are prevented from being opened. When the tubing string 500 is removed from the force applied to the first liner 420, the first resilient member 412 returns to its shape and drives the first liner 420 upward, thereby contacting the latch 300 and the flapper 200. In this scheme, when the elevator suspends the tubular string 500, the shutter 200 and the latch 300 can be locked by the locking pin 411, so that the shutter 200 and the latch 300 can be prevented from being opened by mistake, and the safety performance of the elevator is improved.

In the embodiment disclosed in the present application, when the elevator suspends the tubular string 500, the valve 200 and the latch 300 can be locked by the locking pin 411, so that the valve 200 and the latch 300 can be prevented from being opened by mistake, and the safety performance of the elevator can be improved.

In addition, first inside lining 420 is connected through first threaded connection piece 413 with locking pin 411, when arbitrary one of first inside lining 420 and locking pin 411 needs to be changed, can realize the separation of first inside lining 420 and locking pin 411 through twisting first threaded connection piece 413, and then conveniently change first inside lining 420 and locking pin 411, has improved locking mechanism's maintainability ability.

In addition, the screw connection has a self-locking property, so that the connection reliability of the first liner 420 and the locking pin 411 can be improved.

Alternatively, the first threaded connection 413 may be a bolt, a screw, or the like.

In the embodiment disclosed in the present application, the first liner 420 is directly connected to the locking pin shaft 411 through the first threaded connection 413, so that the locking mechanism is structurally simpler and more compact. In addition, the movable connection between the shutter 200 and the first liner 420 is also achieved through the locking pin 411, so that the locking pin 411 is not only used for locking the shutter 200 and the latch 300, but also used for connecting the first liner 420 and the shutter 200, thereby eliminating the need for other connecting structures between the first liner 420 and the shutter 200 and further simplifying the locking mechanism.

To further improve the safety of the elevator. In another alternative embodiment, the latch 300 may include a rotating body 310 and an ear plate 320, the ear plate 320 may be disposed on the rotating body 310, the ear plate 320 may be provided with a through hole 321, and the rotating body 310 may be rotatably connected to the main body 100. The opening 230 may be formed at a side of the shutter 200 adjacent to the rotating body 310, and the receiving hole 210 may penetrate a side wall of the opening 230. When the shutter 200 is closed, at least a portion of the ear plate 320 is located in the notch 230, and the receiving hole 210 is disposed opposite to the through hole 321, and a portion of the locking pin 411 may be inserted into the through hole 321.

In this scheme, when the locking pin 411 locks the latch 300 and the shutter 200, the locking pin 411 is inserted into the through hole 321, so that the locking pin 411 can be effectively prevented from being separated from the latch 300, and the safety of the elevator is further improved.

In addition, at least a part of the ear plate 320 is located in the notch 230, so that the ear plate 320 can be hidden in the notch 230, and further the ear plate 320 is prevented from being broken due to collision with other components.

In addition, the ear plate 320 is hidden in the notch 230, and the through hole 321 formed in the ear plate 320 is also located in the notch 230, so that the part of the locking pin 411 passing through the through hole 321 is not exposed, and the locking pin 411 is not easy to damage.

Alternatively, the rotating body 310 and the ear plate 320 may be a one-piece structure, that is, the rotating body 310 and the ear plate 320 are integrally molded by casting. Or the rotating body 310 and the ear plate 320 may be connected by welding.

In another alternative embodiment, the locking mechanism disclosed in the present application may further include a first limiting member 431 and a second limiting member 432, the first limiting member 431 is connected to the shutter 200, and the second limiting member 432 is disposed on a sidewall of the locking pin 411 and located in the accommodating hole 210. The first stopper 431 and the second stopper 432 are engaged in a limited manner along the axial direction of the lock pin shaft 411. In this embodiment, the first limiting member 431 and the second limiting member 432 can assist in limiting the moving distance of the locking pin 411, so as to prevent the locking pin 411 from being pushed out of the accommodating hole 210 due to an excessive elastic force of the first elastic member 412, and further prevent the locking pin 411 from being excessively extended, thereby improving the safety and reliability of the locking mechanism.

Alternatively, the first limiting member 431 may be a first limiting protrusion disposed in the accommodating hole 210 or at the opening end, and the second limiting member 432 may be a second limiting protrusion disposed in the circumferential direction of the locking pin 411, and the first limiting protrusion and the second limiting protrusion are in limiting fit along the moving direction of the locking pin 411.

In the above embodiment, the first limiting member 431 is disposed in the accommodating hole 210 or at the opening end, and when the locking pin 411 is assembled into the accommodating hole 210, the first limiting member 431 is easily interfered, so that the assembly difficulty of the locking mechanism is large.

Based on this, in another alternative embodiment, the first stopper 431 is detachably connected to the shutter 200, and the first stopper 431 covers the port of the accommodating hole 210 facing to the end of the first liner 420. The first limiting member 431 may have a through hole, and the through hole may be communicated with the receiving hole 210, and the locking pin 411 passes through the through hole.

In a specific assembling process, the locking pin 411 is first installed in the accommodating hole 210, then the first limiting member 431 is sleeved from the top end of the locking pin 411, then the first limiting member 431 and the shutter 200 are connected, and finally the locking pin 411 and the first liner 420 are connected through the first threaded connector 413.

In this scheme, the first limiting member 431 is detachably connected to the shutter 200, and the first limiting member 431 can be sleeved on the locking pin 411, so that the locking mechanism can be conveniently assembled.

In another alternative embodiment, the receiving hole 210 may include a first hole segment 211, a second hole segment 212 and a third hole segment 213 which are sequentially communicated, and the first stopper 431 may be located in the first hole segment 211. The first resilient member 412 may be located within the second bore section 212. The third hole section 213 may be disposed opposite the latch 300. Wherein the diameter of the first bore section 211 is larger than the diameter of the second bore section 212 and the diameter of the second bore section 212 is larger than the diameter of the third bore section 213.

In this embodiment, the accommodating hole 210 is a counter-sunk hole structure, and the diameter of the first hole section 211 is larger than that of the second hole section 212, so that a counter sink is formed between the first hole section 211 and the second hole section 212, and the first position-limiting member 431 can be directly supported on the counter sink between the first hole section 211 and the second hole section 212, thereby facilitating the assembly of the first position-limiting member 431. The diameter of the second bore section 212 is greater than that of the third bore section 213, and at this time, a sinking platform is provided between the second bore section 212 and the third bore section 213, and one end of the first elastic member 412 can be supported on the sinking platform, thereby facilitating the installation of the first elastic member 412. Therefore, the accommodation hole 210 in this aspect facilitates the assembly of the locking mechanism, making the assembly simpler.

In the above embodiment, the locking pin 411 is prone to shaking, so that the locking pin 411 is prone to jamming.

To this end, in another alternative embodiment, the locking mechanism may further include a second screw connector 441 and a guide pin 442, the first liner 420 may be provided with a second connecting hole, the second screw connector 441 is screw-connected to the guide pin 442 through the second connecting hole, the first liner 420 may be connected to the guide pin 442 through the second screw connector 441, and the extension direction of the guide pin 442 may be parallel to the extension direction of the locking pin 411. The shutter 200 may be formed with a guide hole 220, and a portion of the guide pin 442 penetrates into the guide hole 220.

In this scheme, guide pin 442 and guiding hole 220 can assist the direction to first inside lining 420 to prevent that locking pin 411 from taking place the skew at the in-process that removes, and then prevent that locking pin 411 from taking place the phenomenon of jam.

In addition, the second elastic member 443 can drive the guide pin 442 to move, and the guide pin 442 drives the first liner 420 to move, so that the second elastic member 443 can drive the first liner 420 to return to the initial position when the pipe string 500 is released from the acting force, and the first liner 420 can be driven in an auxiliary manner, so that the driving force applied to the first liner 420 is balanced, and the locking pin 411 is further prevented from being deflected when moving.

Alternatively, both the first elastic member 412 and the second elastic member 443 may be springs, and of course, the first elastic member 412 and the second elastic member 443 may also be other elastic structures, which is not limited herein.

In another alternative embodiment, the locking pin 411 and the guide pin 442 may have the same structure, and the guide hole 220 and the receiving hole 210 may have the same structure, in which case, the locking pin 411 and the guide pin 442 have the same structure, but the locking pin 411 and the guide pin 442 have different functions due to different positions on the shutter 200. This scheme has improved the interchangeability of locking pin 411 and guide pin 442, consequently is convenient for locking pin 411 and guide pin 442's maintenance change, is convenient for locking mechanism's processing and assembly.

In another alternative embodiment, the first liner 420 may include a first plate segment 422 and a second plate segment 423, the first plate segment 422 may be located inside the shutter 200, a first end of the first plate segment 422 extends to the top of the shutter 200, and a second end of the first plate segment 422 extends toward the bottom end of the shutter 200. The second plate segment 423 extends from the first end of the first plate segment 422 along the outer side of the shutter 200, the first plate segment 422 can be located in the accommodating space, and the second plate segment 423 can be provided with the first connection hole 421.

In this scheme, the first plate section 422 is located on the inner side of the valve 200, so the first plate section 422 is used for contacting the pipe string 500, and the first plate section 422 contacts the pipe string 500, thereby preventing the pipe string 500 from wearing the valve 200, and further prolonging the service life of the valve 200. The second plate 423 is opened with a first connection hole 421, so that the second plate 423 is used for connecting the locking pin 411. The first liner 420 has a simple structure and few parts, so the manufacturing process is simple and the manufacturing cost is low.

Alternatively, the first plate segment 422 may have an arc-shaped structure, and the curvature of the first plate segment 422 is the same as that of the shutter 200. The second plate 423 may be a semicircular plate structure, but the first liner 420 may have other structures, and is not limited herein.

In another alternative embodiment, the locking mechanism disclosed herein may further include a second liner 450, the second liner 450 may be fixedly connected to the main body 100, a portion of the second liner 450 may be located in the accommodating space, and the first liner 420 and the second liner 450 may enclose the pipe clamping chamber in the case that the shutter 200 is in the closed state. In this case, the second liner 450 can prevent abrasion of the main body portion 100, thereby extending the life span of the main body portion 100.

Alternatively, the first and second liners 420 and 450 may enclose a cylindrical structure, that is, the first and second liners 420 and 450 may be semi-circular cylinders. Of course, the first and second liners 420 and 450 may have other configurations, and are not limited herein.

In another alternative embodiment, the locking mechanism disclosed herein may further include a sensor 460, the sensor 460 may be disposed on the outer side of the shutter 200, and the sensor 460 may be used to detect the shutter 200 and the latch 300 being closed or opened. In this aspect, the sensor 460 may be used to detect the closing or opening of the shutter 200 and the latch 300, thereby improving the reliability and safety of the elevator.

In a specific operation, the elevator can only hoist when the sensor 460 detects that the shutter 200 and the latch 300 are closed. When the shutter 200 and the latch 300 are not closed, the lifting cannot be performed, thereby ensuring the operation safety performance of the elevator.

Alternatively, the sensor 460 may be an angle measuring sensor for measuring the rotation angle of the latch 300, thereby determining whether the latch 300 is closed. Alternatively, the sensor 460 may be a distance sensor for measuring the distance of the latch 300 therefrom, thereby determining whether the latch 300 is closed.

Based on the locking mechanism of any one of the embodiments of the utility model, the embodiment of the utility model also discloses an elevator, and the elevator disclosed by the utility model is provided with the locking mechanism of any one of the embodiments.

The disclosed elevator further includes a driving mechanism connected to both the shutter 200 and the latch 300, for driving the shutter 200 and the latch 300 to rotate, and opening or closing the shutter 200 or the latch 300. Alternatively, the driving mechanism may be a hydraulic cylinder, a pneumatic cylinder, or a driving motor, and of course, the driving mechanism may also be other power structures, which is not limited herein.

In addition, the elevator disclosed in the present application further includes a turning device and a hanging ring, the hanging ring is connected with the main body portion 100, the turning device is connected with the hanging ring, and the turning mechanism drives the main body portion 100 to perform turning operation through the hanging ring.

In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (11)

1. A locking mechanism of an elevator, the elevator comprises a main body part (100), a valve (200) and a latch (300), the main body part (100) is rotatably connected with the valve (200), the latch (300) is rotatably connected with the main body part (100), and under the condition that the valve (200) is in a closed state, the valve (200) and the main body part (100) enclose a containing space, and the locking mechanism is characterized by comprising a locking pin shaft (411), a first elastic part (412), a first threaded connecting part (413) and a first lining (420);

the part of the first inner liner (420) is located in the accommodating space, a first connecting hole (421) is formed in the first inner liner (420), the first threaded connector (413) is in threaded connection with the locking pin (411) through the first connecting hole (421), and the first inner liner (420) is connected with the locking pin (411) through the first threaded connector (413);

first inside lining (420) can follow for valve (200) the axis direction of locking pin axle (411) removes, accommodation hole (210) have been seted up to valve (200), the part of locking pin axle (411) passes accommodation hole (210), first elastic component (412) are located in accommodation hole (210), and the suit in locking pin axle (411), valve (200) pass through first elastic component (412) with locking pin axle (411) elastic connection, first elastic component (412) can drive locking pin axle (411) with first inside lining (420) remove, locking pin axle (411) can lock valve (200) with hasp (300).

2. The locking mechanism according to claim 1, wherein the latch (300) comprises a rotating body (310) and an ear plate (320), the ear plate (320) is disposed on the rotating body (310), a through hole (321) is formed in the ear plate (320), the rotating body (310) is rotatably connected with the body (100), a notch (230) is formed in one side of the shutter (200) close to the rotating body (310), the accommodating hole (210) penetrates through a side wall of one side of the notch (230), under the condition that the shutter (200) is closed, at least part of the ear plate (320) is located in the notch (230), the accommodating hole (210) is disposed opposite to the through hole (321), and a part of the locking pin (411) can be inserted into the through hole (321).

3. The locking mechanism according to claim 1, further comprising a first limiting member (431) and a second limiting member (432), wherein the first limiting member (431) is connected to the shutter (200), the second limiting member (432) is disposed on a sidewall of the locking pin (411) and located in the receiving hole (210), and the first limiting member (431) and the second limiting member (432) are in limiting fit along an axial direction of the locking pin (411).

4. The locking mechanism as claimed in claim 3, wherein the first limiting member (431) is detachably connected to the shutter (200), the first limiting member (431) covers a port of the accommodating hole (210) facing one end of the first liner (420), the first limiting member (431) is provided with a through hole, the through hole is communicated with the accommodating hole (210), and the locking pin (411) passes through the through hole.

5. The latch mechanism according to claim 4, wherein the receiving hole (210) includes a first hole section (211), a second hole section (212) and a third hole section (213) which are communicated with each other, the first retaining member (431) is located in the first hole section (211), the first elastic member (412) is located in the second hole section (212), the third hole section (213) is disposed opposite to the latch (300), the diameter of the first hole section (211) is larger than that of the second hole section (212), and the diameter of the second hole section (212) is larger than that of the third hole section (213).

6. The locking mechanism as claimed in claim 1, further comprising a second threaded connector (441) and a guide pin (442), wherein the first lining (420) is provided with a second connecting hole, the second threaded connector (441) is in threaded connection with the guide pin (442) through the second connecting hole, the first lining (420) is connected with the guide pin (442) through the second threaded connector (441), the extending direction of the guide pin (442) is parallel to the extending direction of the locking pin (411), the shutter (200) is provided with a guide hole (220), and a portion of the guide pin (442) penetrates into the guide hole (220).

7. The locking mechanism of claim 6, further comprising a second elastic member (443), wherein the second elastic member (443) is located in the guide hole (220) and is sleeved on the guide pin (442), and the shutter (200) is elastically connected to the guide pin (442) through the second elastic member (443).

8. The latch mechanism of claim 1, wherein the first liner (420) comprises a first plate segment (422) and a second plate segment (423), the first plate segment (422) is located inside the shutter (200), a first end of the first plate segment (422) extends to a top of the shutter (200), the second plate segment (423) extends from the first end along an outside of the shutter (200), and the second plate segment (423) opens the first connection hole (421).

9. The locking mechanism according to claim 1, further comprising a second liner (450), wherein the second liner (450) is fixedly connected with the main body (100), wherein a part of the second liner (450) is located in the accommodating space, and wherein the first liner (420) and the second liner (450) enclose a pipe clamping chamber in a state that the valve (200) is closed.

10. Locking mechanism according to claim 1, characterized in that it further comprises a sensor (460), said sensor (460) being arranged on the outer side of said shutter (200), said sensor (460) being adapted to detect the closing or opening of said shutter (200) and said latch (300).

11. An elevator comprising a locking mechanism as claimed in any one of claims 1 to 10.

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