CN215865635U

CN215865635U - Downhole pressure sensor

Info

Publication number: CN215865635U
Application number: CN202122178392.9U
Authority: CN
Inventors: 郜兴星; 赵刚; 保安
Original assignee: Xi'an Hengxiangsheng Intelligent Technology Co ltd
Current assignee: Xi'an Hengxiangsheng Intelligent Technology Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-18
Anticipated expiration: 2031-09-09

Abstract

The application provides a downhole pressure sensor, includes: the clamping mechanism comprises a shell, a clamping mechanism and a shell cover, wherein a pressure sensor is arranged in the shell; the clamping mechanism is connected in the shell, and the pressure sensor is positioned in the clamping mechanism; two first kicking blocks of fixedly connected with are covered to the shell, two first kicking block is used for right clamping mechanism extrudees. The application provides a pressure sensor in pit through covering the cap, makes clamping mechanism offset with pressure sensor, and then provides the stable support of good protection, effective hoisting device's security and life for the inside pressure sensor of casing.

Description

Downhole pressure sensor

Technical Field

The application relates to the technical field of pressure sensors, in particular to an underground pressure sensor.

Background

Petroleum is a natural fuel and plays an important role in our lives, the main component of the petroleum is a mixture of various alkanes, cycloalkanes and aromatics, the petroleum is generally mined through an oil well, the safety work of the development work of the oil well is important, and general workers can monitor the pressure data value of the air in the oil well at any time through an underground pressure sensor and can accurately master the condition under the oil well.

The environment under the existing oil well is generally complex, some hard falling stones and other blocky objects are often generated in the oil well, the collision with the sensor is inevitable, and the abrasion and the damage of the pressure sensor are easily caused in the long-time monitoring work, so that the normal use of the pressure sensor is influenced. Therefore, there is a need to provide a new downhole pressure sensor to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The application provides a pressure sensor in pit has realized can protecting sensor self, effectively ensures the device and normally works to show hoisting device's life, with the problem among the solution background art.

The application provides a downhole pressure sensor, includes: the pressure sensor is arranged inside the shell;

the clamping mechanism is connected in the shell, and the pressure sensor is positioned in the clamping mechanism;

the shell cover is fixedly connected with two first ejector blocks, and the first ejector blocks are used for extruding the clamping mechanism.

Optionally, the clamping mechanism includes: fixing the rod;

both ends of the fixed rod are fixedly connected with sheet plates, and both the sheet plates are fixedly connected with the inner wall of the shell;

two sliding blocks are arranged on the fixed rod at intervals in a sliding manner;

the surfaces, far away from each other, of the two sliding blocks are fixedly connected with springs respectively, the two springs are sleeved on the fixed rod, and one ends, far away from the sliding blocks, of the two springs are fixedly connected to the two sheet plates respectively;

the two sliding blocks are respectively and fixedly connected with a second ejector block;

and the first ejector block and the second ejector block are wedge-shaped blocks and are matched with each other.

Optionally, two the lateral wall that the second kicking block is relative all is equipped with spacing recess, the specification of spacing recess is the same with the specification of sensor.

Optionally, a socket for plugging the pressure sensor is arranged on a wall of one side of the housing, and a steel mesh is arranged on a side wall of the housing.

Optionally, a cable separation-preventing mechanism is further arranged on the side wall of the housing, and the cable separation-preventing mechanism is matched with the socket.

Optionally, the cable detachment prevention mechanism includes: a mounting frame;

the mounting rack is mounted on the outer side wall of the shell;

the mounting rack is of a U-shaped structure, one U-shaped arm of the U-shaped structure of the mounting rack is rotatably connected with one end of a screw rod, and the other end of the screw rod penetrates through the other U-shaped arm of the U-shaped structure of the mounting rack and is provided with a turntable;

two nut seats are arranged on the screw rod at intervals, clamping plates are arranged at the lower ends of the two nut seats respectively, and the two clamping plates are matched with the insertion port.

Optionally, two the one side that splint are close to each other is equipped with the rubber pad that is used for joint cable respectively.

Optionally, the housing cover is provided with two fixing members for connecting with the housing.

The beneficial effect of this application is as follows:

the application provides an underground pressure sensor, through covering the cap, make clamping mechanism offset with pressure sensor, guarantee that pressure sensor is enough stable in casing inside to realize providing fine protection to pressure sensor through the casing.

The application provides an underground pressure sensor through rotating the carousel, drives the rubber pad on the two splint and closely laminates with the cable, can realize the fixed to the cable tip, and the phenomenon that the cable breaks away from carelessly appears in effectual reduction to improve pressure sensor in the stability of work in the pit, further show hoisting device's precision and stability.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present application is further described in detail by the accompanying drawings and examples.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a downhole pressure sensor in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a clamping mechanism of a downhole pressure sensor according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a cable detachment prevention mechanism of a downhole pressure sensor according to an embodiment of the present disclosure;

FIG. 4 is an enlarged schematic view of the structure at A shown in FIG. 2 provided herein;

fig. 5 is an enlarged schematic structural diagram at B shown in fig. 3 provided in the present application.

In the figure, 1-shell, 2-shell cover, 3-pressure sensor, 6-socket, 7-steel mesh, 8-fixing piece, 9-first top block, 10-limiting groove, 11-sheet plate, 12-fixing rod, 13-sliding block, 14-spring, 15-second top block, 16-rubber pad, 17-mounting frame, 18-screw rod, 19-rotating disc, 20-nut seat and 21-clamping plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present application, but not all of the embodiments. 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 application.

According to fig. 1-5, embodiments of the present application provide a downhole pressure sensor, comprising: the pressure sensor comprises a shell 1, wherein a pressure sensor 3 is arranged inside the shell 1. The clamping mechanism is connected in the shell 1, and the pressure sensor 3 is located inside the clamping mechanism. The cap 2, two first kicking blocks 9 of fixedly connected with on the cap 2, two first kicking block 9 is used for right the latch mechanism extrudees.

The working principle and the beneficial effects of the technical scheme are as follows: place pressure sensor 3 in the inside of casing 1, cover cap 2 this moment, can realize that latch mechanism offsets with pressure sensor 3 to protect pressure sensor 3 through casing 1.

In one embodiment of the present application, as shown in fig. 1-4, the snapping mechanism comprises: the fixing rod 12, the equal fixedly connected with lamella 11 in both ends of fixing rod 12, two lamella 11 all with the inner wall fixed connection of casing 1. Two sliders 13 are arranged on the fixing rod 12 in a sliding mode at intervals, one faces, far away from each other, of the sliders 13 are fixedly connected with springs 14 respectively, the springs 14 are sleeved on the fixing rod 12, and one ends, far away from the sliders 13, of the springs 14 are fixedly connected to the two plate plates 11 respectively. Two be fixedly connected with second kicking block 15 on the slider 13 respectively, two first kicking block 9 is the wedge with two second kicking blocks 15, and mutually support the setting.

The working principle and the beneficial effects of the technical scheme are as follows: when the inclined planes of two first ejector blocks 9 and the inclined planes of two second ejector blocks 15 are attached to each other, two second ejector blocks 15 are pushed to move relatively and close to the fixing rod 12 at the same time, and the pressure sensor 3 is fixed while the clamping mechanism is clamped with the shell cover 2.

According to fig. 1-4, in one embodiment of the present application, two opposite side walls of the second top block 15 are provided with a limiting groove 10, and the size of the limiting groove 10 is the same as that of the sensor 3.

The working principle and the beneficial effects of the technical scheme are as follows: when two second kicking blocks 15 all remove and offset with pressure sensor 3, spacing recess 10 on two second kicking blocks 15 can guarantee to be fixed more stable to pressure sensor 3.

In one embodiment of the present application, as shown in fig. 1 to 5, a wall of the housing 1 on one side is provided with a socket 6 for inserting the pressure sensor 3.

The working principle and the beneficial effects of the technical scheme are as follows: the pressure sensor 3 is inserted into the socket 6, so that the pressure sensor 3 can be conveniently installed inside the shell 1.

According to fig. 1 to 5, in an embodiment of the present application, a cable separation preventing mechanism is further disposed on a side wall of the housing 1, and the cable separation preventing mechanism is disposed in cooperation with the socket 6.

The working principle and the beneficial effects of the technical scheme are as follows: when the cable of 3 lower extremes of pressure sensor passed interface 6, it can carry out spacing fixed to the tip of cable to prevent breaking away from the mechanism through the cable, can effectual reduction the phenomenon that the cable breaks away from carelessly to improve pressure sensor in the stability of work in the pit, further show hoisting device's precision and stability.

In one embodiment of the present application, as shown in fig. 1 to 5, the cable detachment prevention mechanism includes: a mounting bracket 17, wherein the mounting bracket 17 is mounted on the outer side wall of the shell 1. The mounting bracket 17 is of a U-shaped structure, one U-shaped arm of the U-shaped structure of the mounting bracket is rotatably connected with one end of a screw rod 18, and the other end of the screw rod 18 penetrates through the other U-shaped arm of the U-shaped structure of the mounting bracket and is provided with a turntable 19. Two nut seats 20 are arranged on the screw rod 18 at intervals, clamping plates 21 are respectively arranged at the lower ends of the two nut seats 20, and the two clamping plates 21 are matched with the insertion port 6.

The working principle and the beneficial effects of the technical scheme are as follows: the turntable 19 is rotated to drive the screw rod 18 to rotate, so that the two nut seats 20 drive the two clamping plates 21 to simultaneously abut against the end parts of the cables relatively, the end parts of the cables can be fixed, the problem that the cables are separated carelessly is effectively avoided, and the stability of the pressure sensor 3 in underground work is ensured.

According to fig. 5, in one embodiment of the present application, two adjacent sides of the clamping plates 21 are respectively provided with rubber pads 16 for clamping cables.

The working principle and the beneficial effects of the technical scheme are as follows: when two rubber pads 16 and cable end closely laminate mutually, can effectually prevent cable relative slip.

According to fig. 1 and 2, in one embodiment of the present application, the housing cover 2 is provided with two fastening elements 8 for connecting to the housing 1.

The working principle and the beneficial effects of the technical scheme are as follows: fix two mountings 8 and the lateral wall of casing 1 through the bolt, can realize installing cap 2 on casing 1.

According to the embodiment shown in fig. 1 to 3, a steel net 7 is provided on the sidewall of the housing 1. All be equipped with steel mesh 7 on the lateral wall of casing 1, can guarantee the normal circulation of air when guaranteeing to protect 1 inside pressure sensor 3 of casing.

The application provides a pressure sensor's theory of operation in pit as follows: when need installation pressure sensor 3 in the pit, insert pressure sensor 3's lower extreme in the interface 6 in the casing 1, cover cap 2 this moment, make between two first kicking blocks 9 on the cap 2 be close to two second kicking blocks 15 gradually, when the inclined plane of two first kicking blocks 9 and the inclined plane of two second kicking blocks 15 laminated mutually, promote two second kicking blocks 15 simultaneously and relatively move with dead lever 12 and be close to, two second kicking blocks 15's removal drives two springs 14 and takes place elastic deformation simultaneously, two second kicking blocks 15 all remove and offset with pressure sensor 3, spacing recess 10 on two second kicking blocks 15 simultaneously laminates with pressure sensor 3 completely, guarantee that pressure sensor 3 is enough stable in casing 1 is inside, thereby protect pressure sensor 3 through casing 1, effectively hoisting device's security and life.

When the cable of pressure sensor 3 lower extreme passes interface 6, rotate carousel 19, carousel 19 drives lead screw 18 and rotates, makes two nut seats 20 move gradually for the both ends of mounting bracket 17 simultaneously, the removal of two nut seats 20 drives the splint 21 of its lower extreme simultaneously to the direction motion that is close to each other, to offsetting with the tip of cable, rubber pad 16 on two splint 21 opposite faces promptly closely the card establish the cable, thereby the realization is fixed the cable tip, the phenomenon that the cable breaks away from carelessly appears in effectual reduction, thereby improve pressure sensor 3 at the stability of borehole work, further show hoisting device's precision and stability.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A downhole pressure sensor, comprising:

the pressure sensor comprises a shell (1), wherein a pressure sensor (3) is arranged inside the shell (1);

the clamping mechanism is connected in the shell (1), and the pressure sensor (3) is positioned in the clamping mechanism;

the clamping mechanism comprises a shell cover (2), wherein two first ejecting blocks (9) are fixedly connected to the shell cover (2), and the first ejecting blocks (9) are used for extruding the clamping mechanism.

2. The downhole pressure sensor of claim 1, wherein the snap-fit mechanism comprises: a fixing rod (12);

both ends of the fixed rod (12) are fixedly connected with sheet plates (11), and both sheet plates (11) are fixedly connected with the inner wall of the shell (1);

two sliding blocks (13) are arranged on the fixed rod (12) at intervals in a sliding manner;

the surfaces, far away from each other, of the two sliding blocks (13) are fixedly connected with springs (14) respectively, the two springs (14) are sleeved on the fixed rod (12), and one ends, far away from the sliding blocks (13), of the two springs (14) are fixedly connected to the two sheet plates (11) respectively;

the two sliding blocks (13) are respectively and fixedly connected with a second ejector block (15);

and the first ejector blocks (9) and the second ejector blocks (15) are wedge-shaped blocks and are matched with each other.

3. Downhole pressure sensor according to claim 2, wherein two opposite side walls of the second top piece (15) are provided with a limiting groove (10), the limiting groove (10) having the same dimensions as the sensor (3).

4. A downhole pressure sensor according to any of claims 1-3, wherein a wall of one side of the housing (1) is provided with a socket (6) for plugging the pressure sensor (3).

5. Downhole pressure sensor according to claim 4, wherein a cable anti-detachment mechanism is further provided on a side wall of the housing (1), the cable anti-detachment mechanism being arranged in cooperation with the socket (6).

6. The downhole pressure sensor of claim 5, wherein the cable anti-disengagement mechanism comprises: a mounting frame (17);

the mounting rack (17) is mounted on the outer side wall of the shell (1);

the mounting rack (17) is of a U-shaped structure, one U-shaped arm of the U-shaped structure of the mounting rack is rotatably connected with one end of a screw rod (18), and the other end of the screw rod (18) penetrates through the other U-shaped arm of the U-shaped structure of the mounting rack and is provided with a turntable (19);

two nut seats (20) are arranged on the screw rod (18) at intervals, clamping plates (21) are respectively arranged at the lower ends of the two nut seats (20), and the two clamping plates (21) are matched with the insertion port (6).

7. Downhole pressure sensor according to claim 6, wherein the sides of the two clamping plates (21) adjacent to each other are provided with a rubber pad (16) for clamping the cable.

8. A downhole pressure sensor according to any of claims 1-3, wherein the housing cover (2) is provided with two fixation members (8) for connection with the housing (1).

9. A downhole pressure sensor according to any of claims 1-3, wherein a steel mesh (7) is provided on the side wall of the housing (1).