Well pipe with telescopic threaded layer embedded in slotted pipe

By designing a well pipe with a telescopic thread layer embedded in the cut-slit pipe, the stable connection of well pipes of different pipe diameters is achieved using the limiting parts and locking parts, solving the problem of difficulty in connecting the cutting-slit pipes after cutting, and providing simple operation and convenience of multiple uses.

CN223270852UActive Publication Date: 2025-08-26THE THIRD GEOLOGICAL EXPLORATION INST OF CHINA METALLURGICAL GEOLOGY ADMINISTRATION
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Patent Information

Application Number
CN202521473161.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-08-26
Estimated Expiration
2035-07-15

AI Technical Summary

Technical Problem

After cutting the cutting tube, the upper and lower pipes cannot adopt standard threaded connection methods, resulting in difficulty in connecting.

Method used

A well tube with a telescopic thread layer embedded in the cut-slit pipe is designed. Through the combination of limiting parts, rotating parts and lock-resisting parts, it can achieve adaptive docking and automatic lock-resisting to different pipe diameters.

Benefits of technology

Simple butt and stable connection of well pipes of different pipe diameters is realized, reducing operation difficulty and supporting multiple cycles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a well casing with a telescopic threaded layer embedded in a slotted pipe, which belongs to the technical field of well casings and comprises a connecting ring and a threaded pipe connected to the side face of the connecting ring, the connecting ring is connected with a limiting component, the limiting component is connected with a rotating component, and a connecting support is connected with a locking component. The limiting component comprises a limiting piece connected with the top of the connecting ring, a limiting groove is formed in the limiting piece, a sliding piece is slidably connected to the inner wall of the limiting groove, an arc-shaped piece is connected to the bottom of the sliding piece, and the limiting piece, the limiting groove, the sliding piece and the arc-shaped piece are circumferentially distributed on the connecting ring at equal intervals. The rotating component comprises a connecting piece connected with the arc-shaped piece, a rack is connected to the top of the connecting piece, the rack is connected with the connecting support in a sliding mode, and aiming at the problem that a traditional device is not high in butt joint compatibility for pipelines with different pipe diameters, compatibility butt joint is carried out through the slidable arc-shaped piece; therefore, the butt joint compatibility and stability of the device are ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of well pipes, in particular to a well pipe with a slotted pipe embedded with a retractable threaded layer. Background Art

[0002] The slotted pipe is made of UPVC, with a single pipe length of 3.0m. The two pipes are connected using a threaded connection. This connection method is also the most standard well pipe connection method required by industry regulations. During construction, the length of the slotted pipe is calculated based on the well depth and groundwater depth, and the number of pipes required must be calculated. The connection method requires threaded connection. However, in actual operation, the depth of monitoring wells and the groundwater depth are often not integers. This means that the slotted pipe must be cut to meet the required depth. Once the pipe is cut, the upper (or lower) thread head of the slotted pipe is lost, making the upper and lower pipes unable to use the standard threaded connection method.

[0003] To address this situation, we want to design a well pipe with a retractable threaded layer embedded in the slotted pipe, or design a unique portable device with variable diameter. For different pipe diameters, the device can be stuck to the inner wall of the well pipe by turning the knob of the device, and the upper part is connected with a threaded thread. This solves the problem of no threaded connection interface between the upper and lower pipes after the pipe is cut.

[0004] The utility model provides a well pipe with a slotted pipe embedded with a retractable threaded layer to solve the problem. Utility Model Content

[0005] The purpose of the utility model is to achieve the effect of adaptive docking of pipes with different diameters, thereby overcoming the problems in the above-mentioned background technology.

[0006] Based on the above technical ideas, the technical solution adopted by this utility model is:

[0007] A well pipe with a slotted pipe embedded with a retractable threaded layer includes a connecting ring and a threaded pipe connected to its side. The connecting ring is connected to a limiting component, the limiting component is connected to a rotating component for controlling the limiting component, the rotating component is rotatably connected to a connecting bracket, and the connecting bracket is connected to a locking component.

[0008] To further limit the above technical solution, the limiting component includes a limiting piece connected to the top of the connecting ring, a limiting groove is provided inside the limiting piece, a sliding piece is slidably connected to the inner wall of the limiting groove, and sliding buffer pieces are provided at both ends of the limiting groove, and the sliding buffer pieces are symmetrically arranged inside the two ends of the limiting groove.

[0009] As a further limitation of the above technical solution, the bottom of the sliding member is connected to an arc-shaped member, and the limiting member, the limiting groove, the sliding member and the arc-shaped member are distributed on the connecting ring at equal intervals around the circumference.

[0010] To further limit the above technical solution, the rotating component includes a connecting member connected to the arc-shaped member, a rack is connected to the top of the connecting member, the rack is slidably connected to the connecting bracket, a sliding groove is provided on the top of the connecting bracket, the inner wall of the sliding groove is slidably connected to the rack, and the stable and accurate transmission effect of the device can be achieved by limiting the rack through the sliding groove.

[0011] To further limit the above technical solution, the rack is meshed with a connecting gear, the top of the connecting gear is connected to a driving gear, and the driving gear is meshed with a transmission gear. Through the transmission combination of multiple sets of gears, the effect of changing the transmission speed ratio can be achieved, thereby achieving the accurate transmission effect of this device.

[0012] Further limitation of the above technical solution is that the connecting gear is rotationally connected to the connecting bracket, the driving gear is rotationally connected to the connecting bracket, the transmission gear is rotationally connected to the connecting bracket, the connecting bracket is provided with a transmission shaft, the transmission shaft is rotationally connected to the transmission gear, and the rotation stability of the transmission gear can be ensured by the structure of the transmission shaft.

[0013] To further define the above technical solution, the transmission gears are distributed at equal intervals around the circumference inside the connecting ring, the transmission gears are meshed and connected to the driving gear, the top of the driving gear is connected to a shaft sleeve, the other end of the shaft sleeve is connected to a handle, the other side of the handle is connected to a spring, the other end of the spring is connected to a pressing piece, the spring is in a compressed state, and the bottom of the pressing piece is connected to a sliding rod. The structure of the spring can ensure that the pressing piece is pushed upward, thereby achieving stable contact between the ratchet and the blocking piece when the device is in use, thereby achieving a stable use effect of the device.

[0014] A further limitation of the above technical solution is that the locking component includes a connecting disk connected to the connecting bracket, the sliding rod passes through the driving gear and the center of the connecting disk, the end of the sliding rod away from the handle is connected to a ratchet, the connecting disk is connected to a torsion spring module, the torsion spring module is rotatably connected to a blocking member, the blocking member is in contact and extrusion with the side of the ratchet, and the combination of the ratchet and the blocking member can effectively improve the one-way limited rotation stability of the device.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Simple operation. The handle structure of this device reduces the difficulty of operation and can achieve synchronous transmission of multiple sets of arc-shaped parts;

[0017] 2. Automatic locking: the device can automatically lock after the docking adjustment is completed through the locking component, thereby reducing the difficulty of operating the device;

[0018] 3. Easy to disassemble. The device can be quickly unlocked by pressing, thereby achieving the effect of multiple recycling of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a connecting ring in a well pipe with a slotted pipe embedded with a retractable threaded layer according to the utility model;

[0021] Figure 2 This is a structural schematic diagram of an arc-shaped member in a well pipe with a slotted pipe embedded with a retractable threaded layer according to the utility model;

[0022] Figure 3 This is a structural diagram of a well pipe sleeve with a slotted pipe embedded with a retractable threaded layer according to the utility model;

[0023] Figure 4 This is a structural diagram of a driving gear in a well pipe with a retractable threaded layer embedded in a slotted pipe according to the utility model;

[0024] Figure 5 The utility model is a structural schematic diagram of a connecting gear in a well pipe with a slotted pipe embedded with a retractable threaded layer.

[0025] Among them, 1. connecting ring; 2. threaded tube; 3. limiting component; 301. limiting component; 302. limiting groove; 303. sliding component; 304. arc-shaped component; 4. rotating component; 401. bushing; 402. handle; 403. pressing component; 404. spring; 405. driving gear; 406. sliding rod; 407. transmission gear; 408. driving gear; 409. connecting gear; 410. rack; 411. connecting component; 5. connecting bracket; 6. locking component; 601. connecting disk; 602. ratchet; 603. torsion spring module; 604. blocking component. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-Figure 5 The utility model is described in further detail.

[0027] Example 1: This example provides a slotted pipe with an embedded retractable threaded layer, such as Figure 1-Figure 5As shown, it includes a connecting ring 1 and a threaded tube 2 connected to its side, the connecting ring 1 is connected to a limiting component 3, the limiting component 3 is connected to a rotating component 4 for controlling the limiting component 3, the rotating component 4 is rotatably connected to a connecting bracket 5, and the connecting bracket 5 is connected to a locking component 6.

[0028] The limiting component 3 includes a limiting piece 301 connected to the top of the connecting ring 1 . A limiting groove 302 is provided inside the limiting piece 301 . A sliding piece 303 is slidably connected to the inner wall of the limiting groove 302 .

[0029] The bottom of the sliding member 303 is connected to the curved member 304. The limiting member 301, the limiting groove 302, the sliding member 303, and the curved member 304 are circumferentially and evenly spaced on the connecting ring 1. The rotating component 4 includes a connecting member 411 connected to the curved member 304. The top of the connecting member 411 is connected to a rack 410, which is slidably connected to the connecting bracket 5. The end of the connecting member 411 near the curved member 304 is connected to a docking joint. The inner curved surface of the curved member 304 is provided with a docking groove, which is docked with the docking joint. The combination of the docking joint and the docking groove allows the curved member 304 to be replaced according to actual usage requirements, thereby allowing the curved member 304 to be replaced with a curved member 304 of different curvatures according to actual usage requirements.

[0030] The rack 410 is meshedly connected with the connecting gear 409, the top of the connecting gear 409 is connected with the driving gear 408, the driving gear 408 is meshedly connected with the transmission gear 407, the connecting gear 409 is rotationally connected to the connecting bracket 5, the driving gear 408 is rotationally connected to the connecting bracket 5, the transmission gear 407 is rotationally connected to the connecting bracket 5, the connecting bracket 5 is provided with a transmission shaft, the transmission shaft is rotationally connected to the transmission gear 407, and the rotation stability of the transmission gear 407 can be ensured by the structure of the transmission shaft.

[0031] The specific working principle is: the device can achieve the effect of compatible docking of pipes with different diameters. When the device is used, the threaded tube 2 can facilitate the docking of the device with one end of the existing pipe. When the device adjusts the pipe diameter compatibility, the arc-shaped member 304 of the device is inserted into the interior of the pipe to be docked. At this time, the handle 402 is turned, and the handle 402 drives the shaft sleeve 401 to rotate, and the shaft sleeve 401 drives the active gear 405 to rotate. The active gear 405 can drive the connecting gear 409 to rotate through the meshing connection combination with the transmission gear 407 and the drive gear 408, and then drive the rack 410 to slide linearly, thereby driving the arc-shaped member 304 to expand outward through the connecting member 411, and achieving a uniform extrusion effect on the inner arc surface of the pipe through multiple groups of arc-shaped members 304 distributed at equal intervals around the circumference.

[0032] During the rotation of the driving gear 405, the sliding rod 406 rotates synchronously with the sleeve 401, so that the ratchet 602 rotates synchronously with the driving gear 405. When the ratchet 602 rotates, the torsion spring module 603 drives the blocking member 604 to rotate elastically, so that the blocking member 604 is squeezed against the side of the ratchet 602, thereby achieving a one-way rotation limiting effect of the ratchet 602, which can prevent the ratchet 602 from rotating in the opposite direction, thereby achieving a locking effect on the outward expansion of the arc member 304.

[0033] When the device needs to be unlocked, the pressing member 403 is pressed downward, and the ratchet 602 is moved downward by the sliding rod 406, so that the ratchet 602 and the blocking member 604 are misaligned. At this time, the ratchet 602 can rotate in the opposite direction to achieve unlocking.

[0034] Example 2: This example provides a slotted pipe with an embedded retractable threaded layer, such as Figure 1-Figure 5 As shown, the transmission gears 407 are distributed at equal intervals around the circumference inside the connecting ring 1, and the transmission gears 407 are meshed and connected with the driving gear 405. The top of the driving gear 405 is connected to the shaft sleeve 401, and the other end of the shaft sleeve 401 is connected to the handle 402. The other side of the handle 402 is connected to a spring 404, and the other end of the spring 404 is connected to a pressing piece 403. The spring 404 is in a compressed state, and the bottom of the pressing piece 403 is connected to a sliding rod 406.

[0035] The locking component 6 includes a connecting disk 601 connected to the connecting bracket 5, the sliding rod 406 passes through the driving gear 405 and the center of the connecting disk 601, the end of the sliding rod 406 away from the handle 402 is connected to the ratchet 602, the connecting disk 601 is connected to the torsion spring module 603, the torsion spring module 603 is rotatably connected to the blocking member 604, and the blocking member 604 contacts and squeezes the side of the ratchet 602.

[0036] The specific working principle is: this device can effectively achieve the effect of compatible docking of pipes with different diameters, and the gap between the arc-shaped part 304 and the connecting bracket 5 can ensure that the inside of the pipe is in a through state after the docking of this device is completed.

[0037] The above content is a further detailed description of the present invention in combination with specific preferred implementation schemes, which is convenient for technicians in this technical field to understand and apply the present invention. It cannot be determined that the specific implementation of the present invention is limited to these descriptions.

Claims

1. A well pipe with a slotted pipe embedded with a retractable threaded layer, comprising a connecting ring (1) and a threaded pipe (2) connected to the side of the connecting ring, characterized in that: The connecting ring (1) is connected to the limiting component (3), the limiting component (3) is connected to the rotating component (4) for controlling the limiting component (3), the rotating component (4) is rotatably connected to the connecting bracket (5), and the connecting bracket (5) is connected to the locking component (6).

2. The well pipe with a slotted pipe embedded with a retractable threaded layer according to claim 1, characterized in that: The limiting component (3) comprises a limiting member (301) connected to the top of the connecting ring (1), a limiting groove (302) is provided inside the limiting member (301), and a sliding member (303) is slidably connected to the inner wall of the limiting groove (302).

3. The well pipe with a slotted pipe embedded with a retractable threaded layer according to claim 2, characterized in that: The bottom of the sliding member (303) is connected to an arc-shaped member (304), and the limiting member (301), the limiting groove (302), the sliding member (303) and the arc-shaped member (304) are distributed on the connecting ring (1) at equal intervals on the circumference.

4. The well pipe with a slotted pipe embedded with a retractable threaded layer according to claim 3, characterized in that: The rotating component (4) includes a connecting member (411) connected to the arc-shaped member (304), a rack (410) is connected to the top of the connecting member (411), and the rack (410) is slidably connected to the connecting bracket (5).

5. The well pipe with a slotted pipe embedded with a retractable threaded layer according to claim 4, characterized in that: The rack (410) is meshedly connected to a connecting gear (409), the top of the connecting gear (409) is connected to a driving gear (408), and the driving gear (408) is meshedly connected to a transmission gear (407).

6. The well pipe with a slotted pipe embedded with a retractable threaded layer according to claim 5, characterized in that: The connecting gear (409) is rotationally connected to the connecting bracket (5), the driving gear (408) is rotationally connected to the connecting bracket (5), and the transmission gear (407) is rotationally connected to the connecting bracket (5).

7. The slotted pipe with an embedded retractable threaded layer according to claim 6, characterized in that: The transmission gears (407) are distributed at equal intervals around the circumference inside the connecting ring (1). The transmission gears (407) are meshedly connected to the driving gear (405). The top of the driving gear (405) is connected to a shaft sleeve (401). The other end of the shaft sleeve (401) is connected to a handle (402). The other side of the handle (402) is connected to a spring (404). The other end of the spring (404) is connected to a pressing member (403). The spring (404) is in a compressed state. The bottom of the pressing member (403) is connected to a sliding rod (406).

8. The well pipe with a slotted pipe embedded with a retractable threaded layer according to claim 7, characterized in that: The locking component (6) includes a connecting disk (601) connected to the connecting bracket (5), the sliding rod (406) passes through the driving gear (405) and the center of the connecting disk (601), the end of the sliding rod (406) away from the handle (402) is connected to the ratchet (602), the connecting disk (601) is connected to the torsion spring module (603), the torsion spring module (603) is rotatably connected to the blocking member (604), and the blocking member (604) contacts and squeezes the side of the ratchet (602).