L-shaped well logging device

Abstract

This utility model relates to an L-shaped well surveying device, comprising a main rod and a crossbar vertically fixedly connected to the lower end of the main rod, forming an L-shaped structure; it also includes a telescopic extension rod and a rotating connection mechanism; the rotating connection mechanism is located at the right-angle fixed shaft connecting the main rod and the crossbar; one end of the telescopic extension rod is hinged to the right-angle fixed shaft through the rotating connection mechanism, allowing the telescopic extension rod to rotate from 0° to 90° relative to the crossbar in the vertical plane; the telescopic extension rod is composed of at least two sections of square tubing connected together, and its telescopic length is fixed by a locking mechanism; a waterproof lighting device is provided at the bottom of the crossbar; a first opening is provided on one side of the main rod for the telescopic extension rod to be inserted into it when rotated to be parallel to the main rod; a second opening is provided on the crossbar for the telescopic extension rod to be inserted into it when rotated to be in the same direction as the crossbar. It can solve the problem of difficult underground pipeline surveying in environments with small well openings and large well chambers.

Description

Technical Field

[0001] This utility model relates to the technical field of underground pipeline measurement equipment, and in particular to an L-shaped well measuring device, which is an L-shaped well measuring device for measuring underground pipelines with small well openings and large well chambers. Background Technology

[0002] In urban underground pipeline surveying, situations involving "small manhole openings and large manhole chambers" are frequently encountered. Existing standard L-shaped probe rods typically have a fixed crossbar length of around 0.5 meters. When facing large manhole chambers, this length is often insufficient to reach the distant pipe opening, making it impossible to accurately measure crucial information such as pipe diameter, pipeline direction, and the elevations of the pipe top and bottom.

[0003] While advanced technologies such as pipeline CCTV inspection robots and pipeline laser scanners exist to address this issue, these devices are expensive and complex to operate, making them difficult to widely apply for routine measurement projects or for organizations with limited budgets. Therefore, there is an urgent need for a low-cost, easy-to-operate well exploration device that can effectively expand the measurement range. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an L-shaped well exploration measurement device. This device is simple in structure, low in cost, and can effectively expand the measurement range, thus solving the problem of difficult underground pipeline measurement in environments with small well openings and large well chambers.

[0005] The above-mentioned utility model objective is achieved through the following technical solution:

[0006] An L-shaped well exploration and measurement device includes a main rod and a crossbar that is vertically and fixedly connected to the lower end of the main rod, forming an L-shaped structure; it also includes a telescopic extension rod and a rotary connection mechanism.

[0007] The rotary connection mechanism is located at the right-angle fixed axis connecting the main rod and the crossbar;

[0008] One end of the telescopic extension rod is hinged to the right-angle fixed shaft through the rotary connection mechanism, so that the telescopic extension rod can rotate from 0° to 90° relative to the crossbar in the vertical plane;

[0009] The telescopic extension rod is composed of at least two sections of square tubing connected together, and its telescopic length is fixed by a locking mechanism.

[0010] Waterproof lighting devices are provided on both sides of the crossbar;

[0011] The main rod has a first opening on one side for the telescopic extension rod to be inserted into when it is rotated to be parallel with the main rod;

[0012] The crossbar has a second opening for the telescopic extension rod to be inserted into when it is rotated to the same direction as the crossbar.

[0013] As a further technical solution of this utility model: two opposing semi-circular baffles are installed at the connection between the main rod and the crossbar, and an arc-shaped track is provided on the semi-circular baffles;

[0014] Limiting rods are fixedly connected to both sides of the telescopic extension rod near its hinge end. The limiting rods are embedded in the arc-shaped track and can slide along it.

[0015] As a further technical solution of this utility model: the rotary connection mechanism includes a connector fixedly mounted on the right-angle fixed shaft and a hinge seat fixedly connected to the end of the telescopic extension rod. The connector and the hinge seat are hinged by a pin.

[0016] As a further technical solution of this utility model: the telescopic extension rod is composed of an outer square tube and an inner square tube connected together. A long strip-shaped moving track is opened on one side of the tube wall of the outer square tube. A slider that can be embedded in the moving track and slide is fixed on the inner square tube. The locking mechanism includes a screw and a nut. The locking is achieved by the screw and nut cooperating through the holes on the moving track and the slider.

[0017] As a further technical solution of this utility model: anti-slip bars are respectively installed on both sides of the crossbar near the second opening, and the anti-slip bars are used to restrict the telescopic extension bar within the crossbar.

[0018] As a further technical solution of this utility model: the anti-slip stop bar includes a base, a pin and a spring. The base is fixed on the crossbar. A cavity for the spring to be embedded is opened in the base. A pressure block is fixed to one end of the pin. The pressure block abuts against one end of the spring. The other end of the pin passes through the base and abuts against the telescopic extension rod embedded in the second opening. The end of the pin has a rounded corner.

[0019] As a further technical solution of this utility model: the length of the telescopic extension rod when fully retracted is about 0.85m, and the maximum length when fully extended is about 1.5m.

[0020] As a further technical solution of this utility model: the device is equipped with multiple crossbars of different lengths, the lengths of which include 0.5m, 0.85m and 1.5m.

[0021] As a further technical solution of this utility model: the waterproof lighting device is an LED light strip.

[0022] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0023] 1. Effectively expands the measurement range: The design of a rotatable and telescopic extension rod significantly increases the lateral working radius of the exploration well device, perfectly solving the measurement problem of small wellheads and large well chambers.

[0024] 2. Easy to carry and store: The innovative opening design allows the extension rod to be fully embedded in the main rod, making the whole device very compact, which greatly facilitates transportation and on-site carrying, and avoids the rod from hooking on other objects.

[0025] 3. Stable and reliable operation: The coordinated operation of the arc-shaped track on the baffle and the limit rod ensures smooth rotation and precise angles of the extension rod, improving the feel of operation and measurement reliability. The spring anti-slip stop ensures stability in the retracted state.

[0026] 4. High adaptability and low cost: Adjustable length and replaceable crossbars allow one device to adapt to various scenarios. Its purely mechanical structure results in manufacturing costs far lower than high-end electronic devices.

[0027] 5. Lighting assistance: The built-in waterproof lighting improves working conditions downhole and helps to quickly and accurately locate pipes. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the telescopic extension rod of this utility model.

[0030] Figure 3 This is a cross-sectional view of the main rod and the telescopic extension rod of this utility model.

[0031] Figure 4 This is a cross-sectional view of the connection between the outer square tube and the inner square tube of this utility model.

[0032] Figure 5 This is a cross-sectional view of the crossbar and telescopic extension bar of this utility model.

[0033] Figure 6 This is a schematic diagram of the anti-slip stop bar of this utility model.

[0034] Reference numerals: 1. Main rod; 11. First opening; 2. Crossbar; 21. Second opening; 3. Telescopic extension rod; 31. Outer square tube; 32. Inner square tube; 4. Right-angle fixed shaft; 5. Locking mechanism; 51. Screw; 52. Nut; 6. Waterproof lighting device; 7. Semi-circular baffle; 71. Arc-shaped track; 8. Limiting rod; 9. Anti-slip stop bar; 91. Base; 92. Pin; 93. Spring; 94. Cavity; 95. Pressure block. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] Example 1:

[0039] Reference Figure 1This utility model discloses an L-shaped well-exploration measuring device, comprising a main rod 1 and a crossbar 2 vertically fixedly connected to the lower end of the main rod 1, forming an L-shaped structure; it also includes a telescopic extension rod 3 and a rotating connection mechanism; the rotating connection mechanism is located at the right-angle fixed shaft 4 connecting the main rod 1 and the crossbar 2; one end of the telescopic extension rod 3 is hinged to the right-angle fixed shaft 4 through the rotating connection mechanism, allowing the telescopic extension rod 3 to rotate relative to the crossbar 2 in the vertical plane from 0° to 90°; the telescopic extension rod 3 is composed of at least two sections of square tubes sleeved together, and its telescopic length is fixed by a locking mechanism 5; waterproof lighting devices 6 are provided on both sides of the crossbar 2; see reference. Figure 3 A first opening 11 is provided on one side of the main rod 1, allowing the telescopic extension rod 3 to be inserted into it when rotated to be parallel with the main rod 1; see reference. Figure 5 The crossbar 2 has a second opening 21 for the telescopic extension rod 3 to be inserted into it when rotated to be in the same direction as the crossbar 2.

[0040] A rotating connecting mechanism and a telescopic extension rod 3 are added to the right-angle fixed shaft 4 of the traditional L-shaped rod. One end of the telescopic extension rod 3 is hinged to the right-angle fixed shaft 4 through the rotating connecting mechanism, allowing the extension rod to rotate freely in a vertical plane with a rotation angle range of at least 0° to 90°. The telescopic extension rod 3 itself is composed of at least two sections of square tubing joined together, and its length can be adjusted and fixed by a locking mechanism 5.

[0041] For ease of carrying and storage, a first opening 11 is provided on one side of the main rod 1, and a second opening 21 is provided on the crossbar 2. When the telescopic extension rod 3 is rotated to be parallel to the main rod 1, it can be inserted into the first opening 11 of the main rod 1; when rotated to be in the same direction as the crossbar 2, it can be inserted into the second opening 21 of the crossbar 2, so that the entire device forms a compact whole in the non-working state, avoiding protruding rods and facilitating transportation and storage.

[0042] Reference Figure 1 Two opposing semi-circular baffles 7 are installed at the connection between the main rod 1 and the crossbar 2. An arc-shaped track 71 is provided on the semi-circular baffles 7. Limiting rods 8 are fixedly connected to both sides of the telescopic extension rod 3 near its hinge end. The limiting rods 8 are embedded in the arc-shaped track 71 and can slide along it.

[0043] In order to precisely control and limit the rotation trajectory of the telescopic extension rod 3, two semi-circular baffles 7 with arc-shaped tracks 71 are installed at the connection between the main rod 1 and the crossbar 2. A limit rod 8 is fixed on the telescopic extension rod 3. The limit rod 8 slides in the arc-shaped track 71 to ensure that it can only rotate stably within the preset range of 0-90°.

[0044] The rotary connection mechanism includes a connector fixedly mounted on a right-angle fixed shaft 4 and a hinge seat fixedly connected to the end of the telescopic extension rod 3. The connector and the hinge seat are hinged together by a pin.

[0045] Reference Figure 2 The telescopic extension rod 3 is composed of an outer square tube 31 and an inner square tube 32 connected together. A long, narrow sliding track is formed on one side of the outer square tube 31, and a slider that can be embedded in and slide along the sliding track is fixed on the inner square tube 32. (See reference...) Figure 4 The locking mechanism 5 includes a screw 51 and a nut 52, which are engaged to pass through holes in the moving track and the slider to achieve locking.

[0046] In this embodiment, the main rod 1 is a square tube with dimensions of 4*4*0.1cm. In the telescopic extension rod 3, the outer square tube 31 is a rounded square tube with dimensions of 3.5*3.5*0.1cm or 3*3*0.1cm, and the inner square tube 32 is a rounded square tube with dimensions of 2.5*2.5*0.1cm.

[0047] Reference Figure 5 Anti-slip bars 9 are installed on both sides of the crossbar 2 near the second opening 21. The anti-slip bars 9 are used to confine the telescopic extension bar 3 within the crossbar 2. (Refer to...) Figure 6 The anti-slip stop bar 9 includes a base 91, a pin 92, and a spring 93. The base 91 is fixed on the crossbar 2. A cavity 94 is provided in the base 91 for the spring 93 to be embedded. One end of the pin 92 is fixed with a pressure block 95, which abuts against one end of the spring 93. The other end of the pin 92 passes through the base 91 and abuts against the telescopic extension rod 3 embedded in the second opening 21. The end of the pin 92 has a rounded corner.

[0048] Anti-slip stops 9 are provided on both sides of the second opening 21 of the crossbar 2. The stops adopt a spring 93 and pin 92 structure. When the telescopic extension rod 3 is retracted into the crossbar 2, the pin 92 automatically presses against the extension rod under the action of the spring 93 to prevent it from sliding out on its own when it goes out, thus playing a locking role.

[0049] The telescopic extension rod 3 has a length of approximately 0.85m when fully retracted and a maximum length of approximately 1.5m when fully extended. The device is equipped with multiple crossbars 2 of different lengths, including 0.5m, 0.85m, and 1.5m. In this embodiment, the waterproof lighting device 6 is an LED light strip used for underground lighting.

[0050] This invention not only expands measurement capabilities but also greatly optimizes portability and storage performance, ensuring stable and reliable operation. The working process of this invention is as follows:

[0051] Transportation: Retract the telescopic extension rod 3 to its shortest length (approximately 0.85m), then rotate it. If rotated to the same direction as the crossbar 2, it can be inserted into the second opening 21 of the crossbar 2. At this time, the pin 92 of the anti-slip stop 9 automatically presses the extension rod against the spring 93, locking it inside the crossbar 2. If rotated to be parallel to the main rod 1, it can be inserted into the first opening 11 of the main rod 1. The entire device forms a compact whole.

[0052] Measurement status: Overcoming the force of spring 93, move the telescopic extension rod 3 out of the second opening 21. Rotate the telescopic extension rod 3 upwards, and the limiting rod 8 slides along the arc track 71 until it is rotated 90° to make it approximately horizontal. Adjust its length according to the size of the well chamber and lock it. Extend the end of the extended telescopic extension rod 3 toward the target pipe opening for measurement, with the waterproof lighting device 6 providing illumination.

[0053] The implementation principle of this utility model is as follows: This utility model discloses an L-shaped well exploration measuring device, including a main rod 1, a crossbar 2, a telescopic extension rod 3, a rotating connection mechanism, and a waterproof lighting device 6. The core improvement lies in the openings on the main rod 1 and the crossbar 2, allowing the telescopic extension rod 3 to be rotatably embedded within them, greatly optimizing storage and portability; the rotation trajectory of the extension rod is controlled by a baffle with an arc-shaped track 71 and a limiting rod 8, making operation more stable; a spring 93 and an anti-slip stop 9 are installed at the opening of the crossbar 2 to achieve self-locking in the stored state. This utility model effectively solves the problems of insufficient measurement range for small wellheads and large well chamber pipelines, as well as the inconvenience of carrying the device; it has an ingenious structure and strong practicality.

[0054] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An L-shaped well exploration measuring device, comprising a main rod (1) and a crossbar (2) vertically fixedly connected to the lower end of the main rod (1), forming an L-shaped structure; characterized in that: It also includes a telescopic extension rod (3) and a rotary connection mechanism; The rotary connection mechanism is located at the right-angle fixed shaft (4) connecting the main rod (1) and the crossbar (2); One end of the telescopic extension rod (3) is hinged to the right-angle fixed shaft (4) through the rotary connection mechanism, so that the telescopic extension rod (3) can rotate from 0° to 90° relative to the crossbar (2) in the vertical plane; The telescopic extension rod (3) is composed of at least two sections of square tubes connected together, and its telescopic length is fixed by a locking mechanism (5); Waterproof lighting devices (6) are provided on both sides of the crossbar (2); The main rod (1) has a first opening (11) on one side for the telescopic extension rod (3) to be inserted into when rotated to be parallel to the main rod (1); The crossbar (2) has a second opening (21) for the telescopic extension rod (3) to be inserted into it when rotated to the same direction as the crossbar (2).

2. The L-shaped well-exploration measuring device according to claim 1, characterized in that: Two opposing semi-circular baffles (7) are installed at the connection between the main rod (1) and the crossbar (2), and an arc-shaped track (71) is provided on the semi-circular baffles (7); The telescopic extension rod (3) has a limiting rod (8) fixedly connected to both sides near its hinge end. The limiting rod (8) is embedded in the arc-shaped track (71) and can slide along it.

3. The L-shaped well-exploration measuring device according to claim 1, characterized in that: The rotary connection mechanism includes a connector fixedly mounted on the right-angle fixed shaft (4) and a hinge seat fixedly connected to the end of the telescopic extension rod (3). The connector and the hinge seat are hinged by a pin.

4. The L-shaped well-exploration measuring device according to claim 1, characterized in that: The telescopic extension rod (3) is composed of an outer square tube (31) and an inner square tube (32) connected together. A long strip-shaped moving track is opened on one side of the tube wall of the outer square tube (31). A slider that can be embedded in the moving track and slide is fixed on the inner square tube (32). The locking mechanism (5) includes a screw (51) and a nut (52). The locking is achieved by the screw (51) and the nut (52) cooperating to pass through the holes on the moving track and the slider.

5. The L-shaped well exploration measuring device according to claim 1, characterized in that: Anti-slip bars (9) are installed on both sides of the crossbar (2) near the second opening (21). The anti-slip bars (9) are used to restrict the telescopic extension bar (3) within the crossbar (2).

6. The L-shaped well-exploration measuring device according to claim 5, characterized in that: The anti-slip stop bar (9) includes a base (91), a pin (92), and a spring (93). The base (91) is fixed on the crossbar (2). A cavity (94) for the spring (93) to be embedded is provided in the base (91). A pressure block (95) is fixed to one end of the pin (92). The pressure block (95) abuts against one end of the spring (93). The other end of the pin (92) passes through the base (91) and abuts against the telescopic extension rod (3) embedded in the second opening (21). The end of the pin (92) has a rounded corner.

7. The L-shaped well-exploration measuring device according to claim 1, characterized in that: The telescopic extension rod (3) has a length of approximately 0.85m when fully retracted and a maximum length of approximately 1.5m when fully extended.

8. The L-shaped well-exploration measuring device according to claim 1, characterized in that: The device is equipped with multiple crossbars (2) of different lengths, the lengths of which include 0.5m, 0.85m and 1.5m.

9. The L-shaped well-exploration measuring device according to claim 1, characterized in that: The waterproof lighting device (6) is an LED light strip.

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