CN213782857U

CN213782857U - Overcurrent protection device for underground petroleum logging instrument

Info

Publication number: CN213782857U
Application number: CN202023096372.9U
Authority: CN
Inventors: 李扬; 涂建成; 牛少华; 杨赛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-07-23
Anticipated expiration: 2030-12-21

Abstract

The utility model belongs to the technical field of underground oil exploration, in particular to an overcurrent protection device for an underground oil logging instrument, which comprises a base and a top cover, wherein a rectifier bridge is arranged in the base, a convex enclosure is fixed on the periphery of the top surface of the base, a lead hole is arranged on the outer wall of the base, the overcurrent protection device also comprises a quick installation component, and the base and the top cover are connected by the quick installation component; the quick mounting assembly comprises a bidirectional screw, a sliding plate and a locking rod, and the locking rod is vertically fixed on the outer wall of the sliding plate; the overcurrent protection device of the utility model has the advantages that the base and the top cover of the device are installed by using the quick installation component, and only the knob is rotated when the top cover is disassembled and assembled, so that the overcurrent protection device is very convenient, the disassembly of the top cover is greatly facilitated on the premise of ensuring the stable connection of the base and the top cover, and the equipment is easy to overhaul or the disconnected circuit is reconnected; the arrangement of outer flexible protective sleeve and interior stable subassembly can stabilize and protect the connection of cable, guarantees cable junction's reliability.

Description

Overcurrent protection device for underground petroleum logging instrument

Technical Field

The utility model belongs to the technical field of oil exploration in the pit, concretely relates to overcurrent protection device for oil logging instrument in the pit.

Background

In order to bury petroleum and natural gas in a reservoir of several tens of meters to several kilometers underground, an oil-gas channel needs to be built between the ground and the underground reservoir, and the channel is a well.

The overcurrent protector is a device for current overload protection, when the overcurrent protector enters a set state, a relay in the protector can be automatically released, the protector exits the protection state, misoperation on the motor in the set state is effectively prevented, the overcurrent protector can be widely applied to protection and monitoring of three-phase motors in industries such as machinery, metallurgy, building materials, chemical industry, textile industry and the like and other electrical appliances, and is a common device of an underground petroleum logging instrument.

Generally, an overcurrent protector is internally provided with a trimming bridge and a fuse, or an air switch is internally connected, so that when the voltage or the current in a circuit is overlarge, the circuit can be immediately disconnected, and the safety of instrument equipment is ensured.

However, when the overcurrent protector is used, no matter the overcurrent protector adopts a fuse or an air switch, the overcurrent protector needs to be manually reconnected after a fault occurs and a circuit is automatically disconnected, and the original overcurrent protector shell adopts bolt connection, so that special tools are needed to detach bolts one by one during reconnection, and the overcurrent protector is very troublesome.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides an overcurrent protection device for oil logging instrument in pit has convenient to use and easily dismouting's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: an overcurrent protection device for an underground petroleum logging instrument comprises a base and a top cover, wherein a rectifier bridge is arranged in the base, a convex enclosure is fixed on the periphery of the top surface of the base, a lead hole is formed in the outer wall of the base, the overcurrent protection device also comprises a quick mounting assembly, and the base and the top cover are connected through the quick mounting assembly; the quick mounting assemblies are symmetrically provided with two groups, each quick mounting assembly comprises a bidirectional screw, a sliding plate and a locking rod, the bidirectional screws are rotatably mounted on the inner side of the top cover, the sliding plates are slidably mounted on the inner side of the top cover, and a guide sliding groove for embedding the top end of each sliding plate is formed in the inner top surface of the top cover; and two sliding plates on the same group of quick mounting assemblies are symmetrically arranged and are sleeved on the two-way screw rod in a threaded screwing mode, the locking rod is vertically fixed on the outer wall of the sliding plate, and a locking hole for the locking rod to penetrate through is formed in the convex periphery.

As an optimal technical scheme of the utility model, the top cap inner wall is fixed with the mount pad, two-way screw rod runs through the mount pad, just two-way screw rod with it cup joints to distribute between the mount pad bearing on the two-way screw rod.

As a preferred technical scheme of the utility model, swift formula installation component still includes knob, initiative umbelliform gear and driven umbelliform gear, initiative umbelliform gear utilizes the bearing to support to rotate and installs the top cap outer wall, initiative umbelliform gear is fixed on the center pin of knob, driven umbelliform gear is fixed on the two-way screw rod and with initiative umbelliform gear meshes mutually.

As an optimal technical scheme of the utility model, the port outer wall in pin hole is fixed with outer flexible protective sleeve, just outer flexible protective sleeve is rubber tubulose component.

As a preferred technical scheme of the utility model, the port inner wall distribution of pin hole has the internal stability subassembly, just the internal stability subassembly includes movable stabilizing plate, fixed stabilizing plate, connecting block and manual bolt, fixed stabilizing plate is fixed inner base wall just is located the port lower part of pin hole, the connecting block is fixed inner base wall just is located the port top of pin hole, manual bolt utilizes the screw thread to close the mode soon and installs along longitudinal installation on the connecting block, movable stabilizing plate passes through the bearing and supports and install manual bolt bottom.

As a preferred technical solution of the present invention, the longitudinal sections of the movable stabilizer plate and the fixed stabilizer plate are arc-shaped structures with opposite arc openings, and flexible liners are bonded and fixed to the inner walls of the movable stabilizer plate and the fixed stabilizer plate; the flexible inner lining is a rubber inner lining.

Compared with the prior art, the beneficial effects of the utility model are that: the overcurrent protection device of the utility model has the advantages that the base and the top cover of the device are installed by using the quick installation component, and only the knob is rotated when the top cover is disassembled and assembled, so that the overcurrent protection device is very convenient, the disassembly of the top cover is greatly facilitated on the premise of ensuring the stable connection of the base and the top cover, and the equipment is easy to overhaul or the disconnected circuit is reconnected; the arrangement of outer flexible protective sleeve and interior stable subassembly can stabilize and protect the connection of cable, guarantees cable junction's reliability.

Drawings

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

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front structural schematic view of an internal stabilization component in the present invention;

FIG. 3 is a front view of the quick-mount assembly of the present invention;

in the figure: 1. a base; 2. a top cover; 3. a rectifier bridge; 4. a convex periphery; 5. a wire hole; 6. quickly installing the component; 7. a knob; 8. an outer flexible protective sleeve; 9. an internal stabilizing assembly; 10. a movable stabilizer plate; 11. fixing a stabilizing plate; 12. a flexible liner; 13. connecting blocks; 14. a manual bolt; 15. a drive bevel gear; 16. a driven bevel gear; 17. a bidirectional screw; 18. a slide plate; 19. a locking lever; 20. a locking hole; 21. a guide chute; 22. and (7) mounting a seat.

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 work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: an overcurrent protection device for an underground petroleum logging instrument comprises a base 1 and a top cover 2, wherein a rectifier bridge 3 is arranged in the base 1, a convex enclosure 4 is fixed on the periphery of the top surface of the base 1, a lead hole 5 is formed in the outer wall of the base 1, the overcurrent protection device also comprises a quick mounting component 6, and the base 1 and the top cover 2 are connected by the quick mounting component 6; two groups of quick mounting assemblies 6 are symmetrically arranged, each quick mounting assembly 6 comprises a bidirectional screw 17, a sliding plate 18 and a locking rod 19, the bidirectional screw 17 is rotatably mounted on the inner side of the top cover 2, the sliding plate 18 is slidably mounted on the inner side of the top cover 2, and a guide sliding groove 21 for embedding the top end of the sliding plate 18 is formed in the inner top surface of the top cover 2; slide 18 symmetry on the same group's swift formula installation component 6 is equipped with two and utilizes the screw thread to close the mode soon and cup joint on two-way screw rod 17, locking lever 19 vertical fixation is on slide 18 outer wall, set up the locking hole 20 that supplies locking lever 19 to run through on protruding 4, when using, the interior rectifier bridge 3 of connecting device behind the lead wire hole 5 is passed to the lead wire of oil logging instrument in the pit, base 1 utilizes swift formula installation component 6 to be connected with top cap 2, when needs dismantle top cap 2 overhaul device inside components and parts or reconnect the circuit of disconnection, rotate two-way screw rod 17, make slide 18 at both ends draw close to the inboard under the screw thread closes the effect soon, until driving locking lever 19 and breaking away from locking hole 20, can take off top cap 2, and is very convenient.

Specifically, as shown in fig. 1 and fig. 3, in this embodiment, an installation seat 22 is fixed on an inner wall of the top cover 2, the bidirectional screw 17 penetrates through the installation seat 22, bearings sleeved on the bidirectional screw 17 are distributed between the bidirectional screw 17 and the installation seat 22, and the installation seat 22 supports the bidirectional screw 17, so that stability of installation and rotation of the bidirectional screw 17 is ensured.

Specifically, according to fig. 1 and fig. 3, in this embodiment, the quick-mounting assembly 6 further includes a knob 7, a driving bevel gear 15 and a driven bevel gear 16, the driving bevel gear 15 is rotatably supported by a bearing and mounted on the outer wall of the top cover 2, the driving bevel gear 15 is fixed on the central shaft of the knob 7, the driven bevel gear 16 is fixed on the two-way screw 17 and meshed with the driving bevel gear 15, when the top cover 2 needs to be mounted or dismounted, the two-way screw 17 needs to be rotated, at this time, the knob 7 outside the device is rotated, the driving bevel gear 15 is driven by the knob 7 to rotate, and in a meshed relationship, the driven bevel gear 16 drives the two-way screw 17 to rotate, which is very convenient.

Specifically, according to fig. 1, in this embodiment, an outer flexible protective casing 8 is fixed to an outer wall of a port of the lead hole 5, and the outer flexible protective casing 8 is a rubber tubular member, and after a lead of the downhole petroleum logging instrument passes through the lead hole 5, the lead also passes through the outer flexible protective casing 8, so as to avoid a short circuit problem caused by a damaged skin of the lead due to pulling of an external force.

In particular, according to fig. 1 and fig. 2, in the present embodiment, an inner stabilizing component 9 is distributed on the inner wall of the port of the lead hole 5, the inner stabilizing component 9 comprises a movable stabilizing plate 10, a fixed stabilizing plate 11, a connecting block 13 and a manual bolt 14, the fixed stabilizing plate 11 is fixed on the inner wall of the base 1 and is positioned at the lower part of the port of the lead hole 5, the connecting block 13 is fixed on the inner wall of the base 1 and is positioned above the port of the lead hole 5, the manual bolt 14 is longitudinally arranged on the connecting block 13 in a threaded screwing mode, the movable stabilizing plate 10 is supported and arranged at the bottom end of the manual bolt 14 through a bearing, after a lead of an underground petroleum logging instrument passes through the lead hole 5, the manual bolt 14 is rotated to push the movable stabilizing plate 10 to move downwards under the screwing action of the threads, and the lead of the underground petroleum logging instrument is clamped by matching with the fixed stabilizing plate 11, so that the stability of lead connection is ensured.

Specifically, as shown in fig. 1 and fig. 2, in the present embodiment, the longitudinal sections of the movable stabilizer plate 10 and the fixed stabilizer plate 11 are arc-shaped structures with opposite arc openings, and the inner walls of the movable stabilizer plate 10 and the fixed stabilizer plate 11 are both bonded and fixed with a flexible lining 12; the flexible lining 12 is a rubber lining, and the flexible lining 12 can perform safety protection on the lead, so that the problem of short circuit caused by abrasion of the skin of the lead is avoided.

The utility model discloses a theory of operation and use flow: the utility model discloses an overcurrent protection device, when using, the rectifier bridge 3 in the connecting device behind the lead wire hole 5 is passed to the lead wire of oil logging instrument in the pit, and after the lead wire of oil logging instrument in the pit passed lead wire hole 5, it also passed outer flexible protective casing 8 to after the lead wire connection, rotate manual bolt 14, make it move down at the action of screw thread closure action propelling movement stabilizer plate 10, cooperate with fixed stabilizer plate 11 and clip the lead wire of oil logging instrument in the pit, guarantee the stability of pin connection;

base 1 and top cap 2 utilize swift formula installation component 6 to be connected, when needs are dismantled top cap 2 and are overhauld or reconnect the circuit of disconnection to the inside components and parts of device, the outside knob 7 of rotating device utilizes knob 7 to drive initiative umbelliform gear 15 and rotates, under the meshing relation, it drives two-way screw rod 17 rotation through driven umbelliform gear 16, the slide 18 at both ends draws close to the inboard under the screw thread closes the effect soon, until driving locking lever 19 and breaking away from locking hole 20, can take off top cap 2, therefore, the tool is very convenient.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an overcurrent protection device for oil logging instrument in pit, includes base (1) and top cap (2), be equipped with rectifier bridge (3) in base (1), the top surface periphery of base (1) is fixed with protruding (4) of enclosing base (1) outer wall has seted up pin hole (5), its characterized in that: the base (1) is connected with the top cover (2) through the quick mounting component (6); two groups of quick mounting assemblies (6) are symmetrically arranged, each quick mounting assembly (6) comprises a bidirectional screw (17), a sliding plate (18) and a locking rod (19), each bidirectional screw (17) is rotatably mounted on the inner side of the top cover (2), each sliding plate (18) is slidably mounted on the inner side of the top cover (2), and a guide sliding groove (21) for embedding the top end of each sliding plate (18) is formed in the inner top surface of the top cover (2); the two sliding plates (18) on the same group of quick installation assemblies (6) are symmetrically arranged and sleeved on the two-way screw rods (17) in a threaded screwing mode, the locking rods (19) are vertically fixed on the outer walls of the sliding plates (18), and locking holes (20) for the locking rods (19) to penetrate through are formed in the convex enclosure (4).

2. The over-current protection device for a downhole petroleum logging instrument of claim 1, wherein: the inner wall of the top cover (2) is fixed with a mounting seat (22), the two-way screw (17) penetrates through the mounting seat (22), and bearings sleeved on the two-way screw (17) are distributed between the two-way screw (17) and the mounting seat (22).

3. The over-current protection device for a downhole petroleum logging instrument of claim 1, wherein: swift formula installation component (6) still include knob (7), initiative umbelliform gear (15) and driven umbelliform gear (16), initiative umbelliform gear (15) utilize the bearing to support to rotate and install top cap (2) outer wall, initiative umbelliform gear (15) are fixed on the center pin of knob (7), driven umbelliform gear (16) are fixed on two-way screw rod (17) and with initiative umbelliform gear (15) mesh mutually.

4. The over-current protection device for a downhole petroleum logging instrument of claim 1, wherein: an outer flexible protective sleeve (8) is fixed on the outer wall of the port of the lead hole (5), and the outer flexible protective sleeve (8) is a rubber tubular component.

5. The over-current protection device for a downhole petroleum logging instrument of claim 1, wherein: the port inner wall of pin hole (5) distributes and has interior stable subassembly (9), just interior stable subassembly (9) are including activity stabilizing plate (10), fixed stabilizing plate (11), connecting block (13) and manual bolt (14), fixed stabilizing plate (11) are fixed base (1) inner wall just is located the port lower part of pin hole (5), connecting block (13) are fixed base (1) inner wall just is located the port top of pin hole (5), manual bolt (14) utilize the screw thread to close the mode soon and install along vertically on connecting block (13), activity stabilizing plate (10) are passed through the bearing and are supported and install manual bolt (14) bottom.

6. The over-current protection device for a downhole petroleum logging instrument of claim 5, wherein: the longitudinal sections of the movable stabilizing plate (10) and the fixed stabilizing plate (11) are arc-shaped structures with opposite arc openings, and flexible linings (12) are adhered and fixed on the inner walls of the movable stabilizing plate (10) and the fixed stabilizing plate (11); the flexible inner lining (12) is a rubber inner lining.