Marking device special for petroleum oil casing coupling production

By coordinating the conveying device, blocking components, and supporting components, precise positioning and marking of oil casing couplings are achieved, solving the problems of complex structure and large footprint of existing equipment, and improving marking efficiency and accuracy.

CN224224765UActive Publication Date: 2026-05-12TIANJIN JINGGONG PETROLEUM PIPE FITTINGS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN JINGGONG PETROLEUM PIPE FITTINGS
Filing Date
2025-07-31
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing oil casing coupling marking devices have complex structures and occupy a large area.

Method used

A marking device comprising a conveyor, a blocking component, a marking component, and a support component was designed. Through the cooperation of the conveyor belt gap, the blocking component, and the support component, the precise positioning and marking of the oil casing coupling is achieved. The marking process is controlled by an electric telescopic rod and a pressure sensor.

Benefits of technology

The device structure was simplified, the floor space was reduced, the marking accuracy and efficiency were improved, and damage to the couplings was avoided.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224224765U_ABST
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Abstract

The utility model discloses a marking device special for petroleum oil casing coupling production, and relates to the technical field of pipe coupling marking. Comprising a conveying device and a controller, the conveying device at least comprises three conveying belts, and a gap is formed between every two adjacent conveying belts. The petroleum oil casing coupling marking device is provided with the conveying device, the blocking piece, the marking piece and the supporting piece, the petroleum oil casing coupling adjacent to one side of the petroleum oil casing coupling to be marked is blocked through the blocking piece, the petroleum oil casing coupling to be marked is separated from the conveying belt by a certain height through the supporting piece, and when the petroleum oil casing coupling to be marked is lifted to a proper position, the petroleum oil casing coupling to be marked is marked. The to-be-marked petroleum oil casing coupling is marked through the marking piece, after marking is completed, the controller controls the third electric telescopic rod to contract, the supporting plate is made to descend till the top end face of the vertical plate is located at the bottom of the conveying belt, at the moment, the petroleum oil casing coupling is placed on the conveying belt again to be conveyed, and finally the petroleum oil casing coupling rolls into the collecting frame through the sliding plate.
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Description

Technical Field

[0001] This utility model relates to the field of marking technology for pipe couplings, specifically a marking device for the production of oil casing couplings. Background Technology

[0002] Oil casing is primarily used to support the wellbore during and after drilling to ensure the smooth operation of the oil and gas well. The tubing mainly transports oil and gas, particularly from the bottom of the well, to the surface. Oil casing couplings are essential components in the casing system used to connect two tubing strings.

[0003] Chinese utility model patent, authorized announcement number CN209666598U, discloses a marking device for the production of oil casing couplings. By setting a storage device between the propulsion mechanism and the marking mechanism, and setting a first driving device and a second driving device in the propulsion mechanism and the marking mechanism respectively, the marking process of the pipe material to be processed is controlled by an electrical control system, realizing both storage and marking functions.

[0004] The above solution solves the technical problems mentioned in the background art. However, the marking device in the above solution has a complex structure and occupies a large area. Therefore, a marking device for oil casing coupling production is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a marking device specifically for the production of oil casing couplings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a marking device for the production of oil casing couplings, comprising a conveying device and a controller, wherein the conveying device comprises at least three conveyor belts, and a gap is formed between two adjacent conveyor belts;

[0007] The top of the conveyor support frame is provided with a blocking component and a marking component, and the bottom of the marking component is provided with a support component.

[0008] Preferably, limit plates are fixed on both sides of the top of the support frame of the conveying device, and an arc-shaped plate is formed at the end of the limit plate on the feeding side.

[0009] Preferably, the blocking member includes a first support frame, a first electric telescopic rod is fixed to the top of the first support frame, and a partition is fixed to the telescopic end of the first electric telescopic rod.

[0010] Preferably, guide grooves are provided on both sides of the support frame of the conveying device, and sliders are fixed on both sides of the partition, with the sliders matching the guide grooves.

[0011] Preferably, the marking component includes a second support frame, a second electric telescopic rod is fixed to the top of the second support frame, and a marking head is fixed to the telescopic end of the second electric telescopic rod.

[0012] Preferably, the support member includes a third support frame and a support plate, and a third electric telescopic rod is fixed to the top of the third support frame;

[0013] One side of the support plate is located at the bottom of the conveyor belt, and the other side of the support plate extends out of the conveyor belt and forms a vertical plate. A placement groove is formed in the middle of the support plate, and the placement groove is located directly below the marking head.

[0014] A connecting plate is fixed to the bottom of the support plate, and a third electric telescopic rod is fixed to the top of the third support frame. The telescopic end of the third electric telescopic rod is fixed to the connecting plate.

[0015] Preferably, a baffle is provided on one side of the vertical plate, and a pressure sensor is connected between the baffle and the vertical plate.

[0016] Preferably, the bottom of the discharge side support frame of the conveying device is fixed with a downwardly inclined sliding plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This marking device, specifically designed for the production of oil casing couplings, comprises a conveying device, a blocking component, a marking component, and a support component. The blocking component prevents adjacent oil casing couplings on one side from being marked. The support component lifts the oil casing coupling to be marked off the conveyor belt at a certain height. Once the oil casing coupling is raised to the appropriate position, the marking component marks it. After marking, the controller retracts the third electric telescopic rod, causing the support plate to descend until the top surface of the vertical plate is at the bottom of the conveyor belt. At this point, the oil casing coupling is placed back on the conveyor belt for further transport and finally rolls into the collection frame via a sliding plate. This device has a simple structure, occupies a small area, and is highly practical. Attached Figure Description

[0019] Figure 1 This is the left-side axial view of the present invention;

[0020] Figure 2 This is the right-side axial view of the present invention;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a bottom view of the present invention;

[0023] Figure 5 Here are detailed drawings of the blocking component and the marking component of this utility model;

[0024] Figure 6 This is an axial view of the marking component of this utility model.

[0025] In the diagram: 1. Conveying device; 201. Conveyor belt; 202. Gap; 3. Limiting plate; 301. Arc plate; 4. Blocking component; 401. First support frame; 402. First electric telescopic rod; 403. Partition plate; 404. Guide groove; 5. Marking component; 501. Second support frame; 502. Second electric telescopic rod; 503. Marking head; 6. Support component; 601. Third support frame; 602. Third electric telescopic rod; 603. Support plate; 604. Placement groove; 605. Vertical plate; 606. Baffle plate; 607. Pressure sensor; 608. Connecting plate; 7. Slide plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The marking device in the plan is used to mark the couplings of oil casing pipes.

[0028] like Figures 1-6 As shown, this utility model provides a technical solution: a marking device for the production of oil casing couplings, including a conveying device 1 and a controller. The conveying device 1 consists of a support frame, a rotating shaft, at least three conveyor belts 201, and a motor. The controller controls the motor to start, and the rotating shaft drives the conveyor belts 201 to move, thereby realizing the horizontal movement of the oil casing couplings placed on top of the conveyor belts 201. To facilitate material discharge, a downwardly inclined sliding plate 7 is fixed at the bottom of the support frame on the discharge side of the conveying device 1.

[0029] A gap 202 is formed between two adjacent conveyor belts 201. A blocking member 4 and a marking member 5 are sequentially arranged on the top of the support frame of the conveying device 1. A support member 6 is arranged at the bottom of the marking member 5, and the support member 6 is located directly below the marking member 5. The oil casing coupling is lifted by the support member 6, and then the marking member 5 marks the oil casing coupling.

[0030] like Figure 1As shown, limit plates 3 are fixed on both sides of the top of the support frame of the conveying device 1. An arc plate 301 is formed at the end of the limit plate 3 on the feeding side. It can be understood that the arc plate 301 can make the oil casing coupling enter the conveying device 1 more smoothly during the conveying process, avoiding damage to the coupling due to collision. At the same time, the limit plate 3 can prevent the oil casing coupling from shifting during the conveying process and ensure that it moves stably towards the marking position.

[0031] like Figure 5 As shown, the blocking component 4 includes a first support frame 401, a first electric telescopic rod 402 fixed to the top of the first support frame 401, and a partition plate 403 fixed to the end of the telescopic end of the first electric telescopic rod 402. During the transmission of the oil casing coupling, the oil casing coupling has a certain thrust along the transmission direction. To prevent damage to the first electric telescopic rod 402, guide grooves 404 are provided on both sides of the support frame of the transmission device 1, and sliders are fixed on both sides of the partition plate 403. The sliders are adapted to the guide grooves 404. In this way, when the first electric telescopic rod 402 pushes the partition plate 403 to block the oil casing coupling, the sliders can slide in the guide grooves 404 to share part of the thrust, thereby protecting the first electric telescopic rod 402 and extending its service life. It is known that the telescopic frequency and telescopic speed of the first electric telescopic rod 402 can be calculated or determined by the present technical field based on the transmission speed of the oil casing coupling and the conveyor belt 201.

[0032] like Figure 5 As shown, the marking component 5 includes a second support frame 501, a second electric telescopic rod 502 is fixed on the top of the second support frame 501, and a marking head 503 is fixed on the telescopic end of the second electric telescopic rod 502. In this solution, the marking head 503 can be a laser marking head. Laser marking head is a mature existing technology and will not be described in detail in this solution.

[0033] like Figure 5 and Figure 6As shown, the support member 6 includes a third support frame 601 and a support plate 603. A third electric telescopic rod 602 is fixed to the top of the third support frame 601. One side of the support plate 603 is located at the bottom of the conveyor belt 201, so as not to interfere with the conveying of the oil casing coupling. The other side of the support plate 603 extends out of the conveyor belt 201 and forms a vertically upward plate 605. A placement groove 604 is formed in the middle of the support plate 603. The diameter of the placement groove 604 is greater than or equal to the diameter of the oil casing coupling, and the placement groove 604 is located directly below the marking head 503. A connecting plate 608 is fixed to the bottom of the support plate 603. The third electric telescopic rod 602 is fixed to the top of the third support frame 601. The telescopic end of the third electric telescopic rod 602 is fixed to the connecting plate 608. The controller controls the third electric telescopic rod 602 to start, and the support plate 603 moves up and down through the third electric telescopic rod 602.

[0034] In order to achieve automatic control of the third electric telescopic rod 602, in this solution, a baffle 606 is provided on one side of the vertical plate 605, and a pressure sensor 607 is connected between the baffle 606 and the vertical plate 605.

[0035] Working principle:

[0036] When the oil casing coupling moves to the position of the blocking member 4 along with the conveyor belt 201, the controller controls the first electric telescopic rod 402 to extend, pushing the partition 403 to block the oil casing coupling adjacent to the oil casing coupling to be marked on one side. The oil casing coupling to be marked moves forward and is pressed against the baffle 606. The pressure sensor 607 detects the pressure change. After receiving the signal from the pressure sensor 607, the controller controls the third electric telescopic rod 602 to start, driving the support plate 603 to rise. The oil casing coupling to be marked slides into the placement groove 604, so that the oil casing coupling to be marked is separated from the conveyor belt 201 by a certain height. When the oil casing coupling to be marked rises to the appropriate position, the marking head 503 starts to work and marks the oil casing coupling to be marked.

[0037] After marking is completed, the controller controls the third electric telescopic rod 602 to retract, causing the support plate 603 to descend until the top surface of the vertical plate 605 is at the bottom of the conveyor belt 201. At this time, the oil casing coupling is placed back on the conveyor belt 201 for conveying, and finally rolls into the collection box through the slide plate 7.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A marking device for the production of oil casing couplings, comprising a conveying device (1) and a controller, characterized in that: The conveying device (1) includes at least three conveyor belts (201), with a gap (202) formed between two adjacent conveyor belts (201). The top of the support frame of the conveying device (1) is provided with a blocking component (4) and a marking component (5), and the bottom of the marking component (5) is provided with a support component (6).

2. The marking device for the production of oil casing couplings according to claim 1, characterized in that: The top two sides of the support frame of the conveying device (1) are fixed with limit plates (3), and the end of the limit plate (3) on the feeding side is formed with an arc plate (301).

3. The marking device for the production of oil casing couplings according to claim 1, characterized in that: The blocking member (4) includes a first support frame (401), a first electric telescopic rod (402) is fixed to the top of the first support frame (401), and a partition (403) is fixed to the end of the telescopic end of the first electric telescopic rod (402).

4. The marking device for the production of oil casing couplings according to claim 3, characterized in that: The conveying device (1) has guide grooves (404) on both sides of the support frame, and sliders are fixed on both sides of the partition (403), with the sliders matching the guide grooves (404).

5. A marking device for the production of oil casing couplings according to claim 1, characterized in that: The marking component (5) includes a second support frame (501), a second electric telescopic rod (502) is fixed to the top of the second support frame (501), and a marking head (503) is fixed to the telescopic end of the second electric telescopic rod (502).

6. A marking device for the production of oil casing couplings according to claim 5, characterized in that: The support member (6) includes a third support frame (601) and a support plate (603), and a third electric telescopic rod (602) is fixed to the top of the third support frame (601). One side of the support plate (603) is located at the bottom of the conveyor belt (201), and the other side of the support plate (603) extends out of the conveyor belt (201) and forms a vertical plate (605). A placement groove (604) is formed in the middle of the support plate (603), and the placement groove (604) is located directly below the marking head (503). A connecting plate (608) is fixed to the bottom of the support plate (603), and a third electric telescopic rod (602) is fixed to the top of the third support frame (601). The telescopic end of the third electric telescopic rod (602) is fixed to the connecting plate (608).

7. A marking device for the production of oil casing couplings according to claim 6, characterized in that: A baffle (606) is provided on one side of the vertical plate (605), and a pressure sensor (607) is connected between the baffle (606) and the vertical plate (605).

8. A marking device for the production of oil casing couplings according to claim 1, characterized in that: The bottom of the discharge side support frame of the conveying device (1) is fixed with a downwardly inclined sliding plate (7).