CN218647162U

CN218647162U - Well locking device of underground seismic instrument

Info

Publication number: CN218647162U
Application number: CN202222699637.7U
Authority: CN
Inventors: 张志宏
Original assignee: LIAONING EARTHQUAKE ADMINISTRATION
Current assignee: LIAONING EARTHQUAKE ADMINISTRATION; Liaoning Province Earthquake Safety Evaluation Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-17
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses a well locking device of an underground seismic instrument, which comprises a seismic instrument arranged in an underground well, wherein the top end of the seismic instrument is fixedly provided with the well locking device, the well locking device comprises a connecting component, and the connecting component is fixedly connected with the top end of the seismic instrument; the top end of the connecting component is fixedly connected with a connecting plate, a plurality of locking components are circumferentially arranged at equal intervals at the top end of the connecting plate, and the locking components are abutted against the inner wall of the underground well; the top end of the connecting plate is fixedly connected with a supporting plate, the bottom end of the supporting plate is fixedly provided with a driving motor, the output end of the driving motor is fixedly connected with a cam, and the cam is abutted against the locking assembly; the top end of the supporting plate is fixedly connected with an upper top plate, and the upper top plate is detachably connected with a mounting rod used for taking and placing the well lock device. The utility model is simple in operation, convenient to use has improved with seismic apparatus's connection stability and fastness, has reduced not hard up probability, has reduced seismic apparatus monitoring's error.

Description

Well locking device of underground seismic instrument

Technical Field

The utility model relates to a seismic surveillance equipment field especially relates to a well locking device of seismic instrumentation in pit.

Background

The underground seismograph is a special seismograph which is used for installing a seismograph or the seismograph and a data acquisition unit in underground well drilling to carry out seismic observation, the seismograph needs to be directly and rigidly connected with bedrocks of an observation well, and in order to facilitate the rigid connection and fixation of a seismic monitoring instrument on the bedrocks of the observation well, a well locking device of the underground seismograph is designed, and the seismic monitoring instrument is rigidly connected and abutted to the bedrocks and is fixed.

Chinese patent No. CN202010282936.3 discloses a locking device of a portable underground seismic instrument, which comprises an underground supporting frame, a well locking device is connected below the underground supporting frame, a seismic instrument storage box is connected below the well locking device, a tip end which can swing to the outer side of the edge of a lower bottom plate is arranged at the suspended end of a swing arm, a lower connecting rod is rotatably connected below the center of the bottom of a main gear through a bearing, and the lower end of the lower connecting rod is connected with the center of the top of the seismic instrument storage box; the seismograph is convenient to fix on bedrock of an observation well, the well locking device does not influence the placement of bottom-hole equipment, the well locking device is not easy to break down, the well locking device is convenient to take out after use, the flexibility is high, the effect of system installation can be ensured, and the safety and reliability are high; however, in the above scheme, the support is mainly arranged at the wellhead position, so that the well locking device is convenient to mount and support, the well locking device is inconvenient to mount, the well locking device is not fixed or the seismograph is not fixed, and the looseness is easy to occur, so that the monitoring result precision is not sufficient; therefore, a well locking device for a downhole seismic instrument, which is convenient to install, firm to lock and strong in stability, is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a well locking device of seismic instrument in pit to solve the problem that above-mentioned prior art exists.

In order to achieve the above purpose, the utility model provides a following scheme: the utility model provides a well locking device of an underground seismic instrument, which comprises a seismic instrument arranged in an underground well, wherein the top end of the seismic instrument is fixedly provided with the well locking device, the well locking device comprises a connecting component, and the connecting component is fixedly connected with the top end of the seismic instrument;

the top end of the connecting component is fixedly connected with a connecting plate, a plurality of locking components are circumferentially arranged at equal intervals at the top end of the connecting plate, and the locking components are abutted against the inner wall of the underground well; a supporting plate is fixedly connected to the top end of the connecting plate, a driving motor is fixedly mounted at the bottom end of the supporting plate, a cam is fixedly connected to the output end of the driving motor, and the cam is abutted to the locking assembly;

the outer wall of the cam is provided with a plurality of bulges which are arranged corresponding to the locking assemblies, and when the bulges are separated from the locking assemblies, the locking assemblies are separated from the inner wall of the underground well; when the bulge abuts against the locking assembly, the locking assembly abuts against the inner wall of the underground well;

the top end of the supporting plate is fixedly connected with an upper top plate, and an installation rod used for taking and placing the well lock device is detachably connected to the upper top plate.

Preferably, the locking assembly comprises a locking sleeve fixedly mounted on the connecting plate, a locking rod is slidably connected in the locking sleeve, one end of the locking rod is fixedly connected with a push plate abutted against the cam, and the other end of the locking rod is fixedly connected with a locking head detachably connected with the underground well wall; and a return spring is fixedly connected between one end of the locking sleeve far away from the cam and the locking rod.

Preferably, the outer wall of the locking rod is fixedly connected with a positioning plate in a sleeved mode, and a cavity of the locking sleeve is provided with a limiting groove arranged corresponding to the positioning plate; one end of the reset spring is fixedly connected with the positioning plate, and the reset spring is sleeved on the outer wall of the locking rod.

Preferably, the connecting assembly comprises a connecting sleeve fixedly connected to the bottom end of the connecting plate, an inner cavity of the connecting sleeve is connected with a connecting rod in a sliding mode, and the connected bottom end is fixedly installed at the top end of the seismic instrument; and a connecting spring is arranged between the connecting rod and the connecting sleeve.

Preferably, two ends of the connecting spring are respectively and fixedly connected with a pressure sensor and a contact plate, and the contact plate is abutted against the top end of the connecting rod.

Preferably, a plurality of support rods are arranged at the edge of the top end of the connecting plate, and are distributed at equal intervals in the circumferential direction; the top end of the supporting rod is fixedly connected with the bottom end of the supporting plate.

Preferably, the upper top plate comprises a connecting block fixedly connected to the top end of the supporting plate, and a connecting screw hole matched with the mounting rod is formed in the top end of the connecting block; the top pipe rigid coupling of connecting block has the guide cylinder, the spigot surface of guide cylinder is by the arc that sets up to center slope all around.

Preferably, the bottom end of the mounting rod is fixedly connected with a hemispherical guide block, and the guide block is in sliding contact with the guide surface of the guide cylinder.

The utility model discloses a following technological effect: the utility model discloses a well locking device of an underground seismograph instrument, which is mainly used for fixing the seismograph arranged in an underground well and rigidly connecting the seismograph with the underground well to prevent looseness; the well locking devices are connected through the connecting components, so that the connection is convenient, and meanwhile, the installation force of the seismic instrument is convenient to control; the locking assembly on the connecting plate is driven by the cam to be separated from or clamped with the well wall of the underground well, so that locking and separation are realized, and the installation and the disassembly are more convenient; install the roof in the backup pad, the easy to assemble pole is connected with well locking device, conveniently gets the seismic apparatus who puts in the underground well. The utility model is simple in operation, convenient to use has improved with seismic apparatus's connection stability and fastness, has reduced not hard up probability, has reduced seismic apparatus monitoring's error.

Drawings

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

FIG. 1 is a schematic view of a well lock device of the present invention;

FIG. 2 is an axial view of a well lock device of the downhole seismic apparatus of the present invention;

fig. 3 is a top view of the locking assembly of the present invention;

fig. 4 is a side view of the locking assembly of the present invention;

FIG. 5 is an enlarged view of A in FIG. 1, partially in section;

FIG. 6 is an enlarged view of B of FIG. 1, partially in section;

wherein, 1, underground well; 2. a seismic instrument; 3. a connecting assembly; 4. a connecting plate; 5. a locking assembly; 6. a support plate; 7. an upper top plate; 8. mounting a rod; 11. a mounting base; 31. a connecting sleeve; 32. a connecting rod; 33. a connecting spring; 34. a pressure sensor; 35. a contact plate; 41. a support bar; 51. a drive motor; 52. a cam; 53. a locking sleeve; 54. a locking lever; 55. pushing a plate; 56. a locking head; 57. a return spring; 58. positioning a plate; 59. a limiting groove; 71. connecting blocks; 72. a connecting screw hole; 73. a guide cylinder; 81. and a guide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.

Referring to fig. 1-6, the utility model provides a well locking device of an underground seismic instrument, which comprises a seismic instrument 2 arranged in an underground well 1, wherein the top end of the seismic instrument 2 is fixedly provided with the well locking device, the well locking device comprises a connecting component 3, and the connecting component 3 is fixedly connected with the top end of the seismic instrument 2;

the top end of the connecting component 3 is fixedly connected with a connecting plate 4, a plurality of locking components 5 are circumferentially arranged at equal intervals on the top end of the connecting plate 4, and the locking components 5 are abutted against the inner wall of the underground well 1; the top end of the connecting plate 4 is fixedly connected with a supporting plate 6, the bottom end of the supporting plate 6 is fixedly provided with a driving motor 51, the output end of the driving motor 51 is fixedly connected with a cam 52, and the cam 52 is abutted against the locking component 5;

the outer wall of the cam 52 is provided with a plurality of bulges which are arranged corresponding to the locking assemblies 5, and when the bulges are separated from the locking assemblies 5, the locking assemblies 5 are separated from the inner wall of the underground well 1; when the bulge is abutted against the locking component 5, the locking component 5 is abutted against the inner wall of the underground well 1;

an upper top plate 7 is fixedly connected to the top end of the supporting plate 6, and an installation rod 8 used for taking and placing the well lock device is detachably connected to the upper top plate 7.

The utility model discloses a well locking device of an underground seismic instrument, which is mainly used for fixing the seismic instrument 2 arranged in an underground well 1 and rigidly connecting the seismic instrument with the underground well 1 to prevent looseness; the well locking devices are connected through the connecting components 3, so that the connection is convenient, and meanwhile, the installation force of the seismic instrument 2 is convenient to control; the locking assembly on the connecting plate 4 is driven by the cam 52 to be separated from or clamped with the well wall of the underground well 1, so that locking and separation are realized, and the installation and the disassembly are more convenient; an upper top plate 7 is installed on the supporting plate 6, and a rod 8 convenient to install is connected with the well locking device, so that the seismic instrument 2 in the underground well 1 can be conveniently taken and placed.

Furthermore, a mounting seat 11 is fixedly connected in the underground well 1, and the seismic instrument 2 is dropped on the mounting seat 11 and is rigidly connected with the mounting seat 11 under the action of the well locking device.

Further, in this embodiment, the number of the locking assemblies is four, so that the protrusions of the cam 52 are also four correspondingly, and in order to ensure stability, the driving motor 51 selects a servo motor, and rotates 45 ° every time the servo motor is started, so that the process from locking to unlocking of the locking assemblies is completed.

According to a further optimized scheme, the locking assembly 5 comprises a locking sleeve 53 fixedly mounted on the connecting plate 4, a locking rod 54 is connected in the locking sleeve 53 in a sliding mode, one end of the locking rod 54 is fixedly connected with a push plate 55 abutted to the cam 52, and the other end of the locking rod 54 is fixedly connected with a locking head 56 detachably connected with the wall of the underground well 1; a return spring 57 is fixedly connected between one end of the locking sleeve 53 far away from the cam 52 and the locking rod 54. When locking is needed, the bulge of the cam 52 is in contact with and abutted to the push plate 55, the locking rod 54 is pushed to be far away from the cam 52, the sharp locking head 56 is clamped with the well wall of the underground well 1, and the seismic instrument 2 is fixed; when unlocking, the overdrive motor 51 is started again to drive the cam 52 to rotate by 45 degrees, so that the protrusion of the cam 52 is separated from the push plate 55, the return spring 57 pushes the locking rod 54 to rebound, and the locking head 56 is separated from the well wall of the underground well 1.

In a further optimized scheme, a positioning plate 58 is fixedly sleeved on the outer wall of the locking rod 54, and a limiting groove 59 corresponding to the positioning plate 58 is formed in the cavity of the locking sleeve 53; one end of the return spring 57 is fixedly connected with the positioning plate 58, and the return spring 57 is sleeved on the outer wall of the locking rod 54. The positioning plate 58 serves to position the locking bar 54 in combination with the position-limiting groove 59 and also serves as a mounting point for the return spring 57.

According to a further optimized scheme, the connecting assembly 3 comprises a connecting sleeve 31 fixedly connected to the bottom end of the connecting plate 4, the inner cavity of the connecting sleeve 31 is connected with a connecting rod 32 in a sliding mode, and the connected bottom end is fixedly installed at the top end of the seismic instrument 2; a connecting spring 33 is provided between the connecting rod 32 and the connecting sleeve 31. When the seismic apparatus 2 does not contact the mount 11, the connecting rod 32 slides downward to hang the seismic apparatus 2; after the seismic instrument 2 contacts the mounting seat 11, the connecting sleeve 31 moves downwards under the pushing of the mounting rod 8, and the pressure is transmitted to the seismic instrument 2 through the connecting spring 33, so that the stress of the seismic instrument 2 is gradually increased, and the connection is stable.

Furthermore, a locking structure is arranged between the connecting rod 32 and the inner cavity of the connecting sleeve 31 to prevent the connecting rod 32 from being separated from the connecting sleeve 31.

In a further optimized scheme, two ends of the connecting spring 33 are respectively and fixedly connected with a pressure sensor 34 and a contact plate 35, and the contact plate 35 is abutted against the top end of the connecting rod 32. The connecting spring 33 transmits the stress to the pressure sensor 34, measures the acting force between the seismic instrument 2 and the mounting seat 11, ensures the rigidity of connection between the seismic instrument 2 and the mounting seat 11, facilitates the mounting seat 11 to transmit seismic vibration to the seismic instrument 2, and improves the sensitivity.

According to the further optimized scheme, a plurality of support rods 41 are arranged at the edge of the top end of the connecting plate 4, and the support rods 41 are circumferentially distributed at equal intervals; the top end of the support rod 41 is fixedly connected with the bottom end of the support plate 6. The support plate 6 and the connecting plate 4 are connected through the support rod 41, the distance between the support plate and the connecting plate is convenient to adjust, and meanwhile, a space is provided for installation of the driving motor 51 and the locking assembly.

According to a further optimized scheme, the upper top plate 7 comprises a connecting block 71 fixedly connected to the top end of the supporting plate 6, and the top end of the connecting block 71 is provided with a connecting screw hole 72 matched with the mounting rod 8; a guide cylinder 73 is fixedly connected to the top end pipe of the connecting block 71, and the guide surface of the guide cylinder 73 is arc-shaped and is obliquely arranged from the periphery to the center; a hemispherical guide block 81 is fixed to the bottom end of the mounting rod 8, and the guide block 81 is in sliding contact with the guide surface of the guide cylinder 73. The hemispherical guide block 81 contacts with the arc guide surface obliquely arranged on the guide cylinder 73 to guide the mounting rod 8 to the connecting screw hole 72, so that the mounting rod and the connecting screw hole are prevented from being incapable of being mounted due to deflection.

A method of use;

separating the projection of the cam 52 from the locking assembly and then mounting the seismic apparatus 2 at the bottom end of the connecting rod 32; then the installation rod 8 is screwed into the connection screw hole 72, the well lock device and the seismic equipment 2 are placed into the underground well 1 by means of an instrument (not shown in the figure), and then pushed downward by the installation rod 8 until the seismic equipment 2 contacts the installation base 11;

the pushing force is slowly increased through the mounting rod 8 until the measured value of the pressure sensor 34 reaches the mounting requirement; stopping increasing the thrust and keeping; then, starting a driving motor 51, enabling the driving motor 51 to drive a cam 52 to rotate by 45 degrees, and pushing a locking head 56 to be clamped with the well wall of the underground well 1; finally, the mounting rod 8 is dismounted to finish mounting;

after the measurement is finished, the mounting rod 8 is inserted again, and the guide head of the mounting rod 8 is matched with the guide surface of the guide cylinder 73, so that the mounting rod 8 is aligned to the connecting screw hole 72; and then the driving motor 51 is started again to rotate for 45 degrees, so that the locking head 56 is separated from the well wall of the underground well 1, and then the underground well is taken out.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The well locking device of the seismic instrument in the pit, including installing the seismic instrument (2) in the underground well (1), the top fixed mounting of seismic instrument (2) has well locking device, its characterized in that: the well locking device comprises a connecting component (3), and the connecting component (3) is fixedly connected with the top end of the seismic instrument (2);

the top end of the connecting component (3) is fixedly connected with a connecting plate (4), a plurality of locking components (5) are circumferentially arranged at equal intervals on the top end of the connecting plate (4), and the locking components (5) are abutted against the inner wall of the underground well (1); a supporting plate (6) is fixedly connected to the top end of the connecting plate (4), a driving motor (51) is fixedly mounted at the bottom end of the supporting plate (6), a cam (52) is fixedly connected to the output end of the driving motor (51), and the cam (52) is abutted to the locking component (5);

the outer wall of the cam (52) is provided with a plurality of bulges which are arranged corresponding to the locking assemblies (5), and when the bulges are separated from the locking assemblies (5), the locking assemblies (5) are separated from the inner wall of the underground well (1); when the bulge is abutted to the locking component (5), the locking component (5) is abutted to the inner wall of the underground well (1);

the top rigid coupling of backup pad (6) has last roof (7), go up roof (7) and go up and to dismantle to be connected with and be used for getting and put installation pole (8) of well locking device.

2. A well lock device for a downhole seismic instrument according to claim 1, wherein: the locking assembly (5) comprises a locking sleeve (53) fixedly mounted on the connecting plate (4), a locking rod (54) is connected in the locking sleeve (53) in a sliding manner, one end of the locking rod (54) is fixedly connected with a push plate (55) abutted against the cam (52), and the other end of the locking rod (54) is fixedly connected with a locking head (56) detachably connected with the wall of the underground well (1); and a return spring (57) is fixedly connected between one end of the locking sleeve (53) far away from the cam (52) and the locking rod (54).

3. A well lock device for a downhole seismic tool according to claim 2, wherein: a positioning plate (58) is fixedly sleeved on the outer wall of the locking rod (54), and a limiting groove (59) corresponding to the positioning plate (58) is formed in the cavity of the locking sleeve (53); one end of the reset spring (57) is fixedly connected with the positioning plate (58), and the reset spring (57) is sleeved on the outer wall of the locking rod (54).

4. A well lock device for a downhole seismic instrument according to claim 1, wherein: the connecting component (3) comprises a connecting sleeve (31) fixedly connected to the bottom end of the connecting plate (4), the inner cavity of the connecting sleeve (31) is connected with a connecting rod (32) in a sliding mode, and the connected bottom end is fixedly installed at the top end of the seismic instrument (2); a connecting spring (33) is arranged between the connecting rod (32) and the connecting sleeve (31).

5. The well lock device of a downhole seismic instrument according to claim 4, wherein: and two ends of the connecting spring (33) are respectively and fixedly connected with a pressure sensor (34) and a contact plate (35), and the contact plate (35) is abutted against the top end of the connecting rod (32).

6. A well lock device for a downhole seismic instrument according to claim 1, wherein: a plurality of support rods (41) are arranged at the edge of the top end of the connecting plate (4), and the support rods (41) are distributed at equal intervals in the circumferential direction; the top end of the supporting rod (41) is fixedly connected with the bottom end of the supporting plate (6).

7. A well lock device for a downhole seismic instrument according to claim 1, wherein: the upper top plate (7) comprises a connecting block (71) fixedly connected to the top end of the supporting plate (6), and the top end of the connecting block (71) is provided with a connecting screw hole (72) matched with the mounting rod (8); the top pipe rigid coupling of connecting block (71) has guide cylinder (73), the spigot surface of guide cylinder (73) is by the arc of slope setting to the center all around.

8. A well lock device for a downhole seismic instrument according to claim 7, wherein: the bottom rigid coupling of installation pole (8) has hemispherical guide block (81), guide block (81) with the spigot surface sliding contact of guide cylinder (73).