Long-distance safety analysis sampling device

Abstract

The utility model discloses a long-distance safety analysis sampling device, relates to a sampling device, and in particular relates to a long-distance safety analysis sampling device which adopts a telescopic structure and can realize long-distance sampling and improve the safety of sampling personnel. The long-distance safety analysis sampling device is characterized in that the sampling device comprises a telescopic assembly, a sampling probe, a stepless motor and a take-up assembly, the telescopic assembly and the take-up assembly are both connected with a driving gear on a rotating shaft of the stepless motor, the sampling probe is installed at the end of the telescopic assembly, and the sampling probe is installed at the end of the take-up assembly. The sampling probe is connected with an analysis instrument through a data line, and the data line is wound on the take-up assembly. The long-distance safety analysis sampling device is simple in structure, scientific in design and convenient to use, the motor is adopted to drive the telescopic assembly and the take-up assembly to work synchronously, the threaded sleeve stretches out and draws back through meshed teeth between the telescopic assemblies so as to achieve the purpose of automatic stretching and retracting, sampling work can be conveniently carried out in a limited space, and the sampling efficiency is improved. And the sampling safety is improved.

Description

Technical Field

[0001] This utility model relates to sampling devices, and in particular to a remote safety analysis sampling device that employs a telescopic structure to achieve long-distance sampling and improve the safety of sampling personnel. Background Technology

[0002] Safety analysis includes hot work and confined space work. Confined spaces refer to enclosed or semi-enclosed facilities and locations with restricted access, poor ventilation, and the potential presence of flammable, explosive, toxic, or hazardous substances, or oxygen deficiency, posing a threat to the health and safety of personnel entering such spaces. These include reactors, towers, vessels, tanks, furnaces, boiler drums, pipelines, as well as basements, manholes, pits, trenches, or other enclosed or semi-enclosed locations.

[0003] Currently, instruments used for confined space and hot work analysis are handheld contact devices. In actual use, they cannot meet the requirements for sampling at long distances, at heights, or inside confined spaces, and there is no guarantee for the sampling analysis results or the safety of sampling personnel. Summary of the Invention

[0004] The present invention aims to solve the problem that existing sampling devices cannot meet the sampling conditions for long-distance, high-altitude operations or confined spaces. It provides a long-distance safety analysis sampling device with a telescopic structure that can achieve long-distance sampling and improve the safety of sampling personnel.

[0005] This utility model discloses a long-distance safety analysis sampling device, characterized in that the sampling device includes a telescopic component, a sampling probe, a stepless motor, and a take-up component. Both the telescopic component and the take-up component are connected to the drive gear on the shaft of the stepless motor. The sampling probe is mounted at the end of the telescopic component and is connected to the analysis instrument via a data cable wound around the take-up component.

[0006] The telescopic assembly consists of several threaded sleeves. The outermost threaded sleeve has threads on its inner wall and a ring of teeth at the rear end of its outer wall. These teeth are parallel to the central axis of the threaded sleeve and mesh with the drive gear of the continuously variable motor. The innermost threaded sleeve has threads on its outer wall, and the sampling probe is installed at the end of the innermost threaded sleeve. The middle threaded sleeves have threads on both their outer and inner walls. For two adjacent threaded sleeves, the threads on the inner wall of the outer threaded sleeve mesh with the threads on the outer wall of the inner threaded sleeve. The thread length on the outer or inner wall of each threaded sleeve is less than the length of its own threaded sleeve, and the distance between the two ends of the thread and the edge of the end of its own threaded sleeve is not less than 1 cm.

[0007] The take-up assembly includes a double gear, a bevel gear, and a winch. One set of gears in the double gear has ordinary teeth and meshes with the drive gear of the continuously variable motor, while the other set has bevel teeth and meshes with the bevel gear. The bevel gear is mounted on the winch shaft, and the double gear drives the winch to rotate through the bevel gear.

[0008] The innermost threaded sleeve end has a T-shaped groove on its inner wall. A buckle is installed in the groove and slides along the groove. The sampling probe is installed on the buckle. When the threaded sleeve rotates, the buckle can slide in the groove to maintain its original position and prevent the data cable connected to the sampling probe from getting tangled.

[0009] The sampling device also includes a handle, a continuously variable motor mounted in the middle of the handle, two brackets at each end of the continuously variable motor, a lithium battery inside the handle connected to the continuously variable motor via wires; a disc is fixed on one of the brackets, the disc is perpendicular to the bracket, a T-shaped groove is provided on the inner wall of the bottom end of the outermost threaded sleeve, a protrusion is provided on the outer edge of the disc, the disc is locked in the groove of the outermost threaded sleeve, a through hole is provided at the handle position corresponding to the bracket, the data cable passes through the through hole and connects to the end of the innermost threaded sleeve; a bearing is provided on the other bracket, the shaft of the winch is mounted on the bearing, and the data cable is wound on the winch.

[0010] The winch is also equipped with a spring clip, which is located in the middle of the winch and above the wound data line.

[0011] This utility model of a long-distance safety analysis and sampling device has a simple structure, scientific design, and is easy to use. It uses a motor to drive the telescopic component and the take-up component to work synchronously. The threaded sleeve is telescopically extended and retracted by the meshing teeth between the retraction components, so as to achieve the purpose of automatic extension and retraction. This facilitates sampling work in confined spaces and improves the safety of sampling. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of a threaded sleeve structure.

[0014] Figure 3 This is a cross-sectional view of the connection between the bracket and the threaded sleeve.

[0015] Figure 4 This is a cross-sectional view of the connection between the sampling probe and the threaded sleeve.

[0016] The components include: handle 1, threaded sleeve 2, stepless motor 3, winch 4, drive gear 5, double gear 6, bevel gear 7, bracket 8, disc 9, slide groove 10, protrusion 11, buckle 12, sampling probe 13, and spring 14. Detailed Implementation

[0017] Example 1: A long-distance security analysis sampling device includes a telescopic assembly, a sampling probe, a continuously variable motor, and a take-up assembly. Both the telescopic assembly and the take-up assembly are connected to the drive gear on the shaft of the continuously variable motor. The sampling probe is mounted at the end of the telescopic assembly and is connected to an analysis instrument via a data cable wound around the take-up assembly.

[0018] The telescopic assembly consists of several threaded sleeves. The outermost threaded sleeve has threads on its inner wall and a ring of teeth at the rear end of its outer wall. These teeth are parallel to the central axis of the threaded sleeve and mesh with the drive gear of the continuously variable motor. The innermost threaded sleeve has threads on its outer wall, and the sampling probe is installed at the end of the innermost threaded sleeve. The middle threaded sleeves have threads on both their outer and inner walls. For two adjacent threaded sleeves, the threads on the inner wall of the outer threaded sleeve mesh with the threads on the outer wall of the inner threaded sleeve. The thread length on the outer or inner wall of each threaded sleeve is less than the length of its own threaded sleeve, and the distance between the two ends of the thread and the edge of the end of its own threaded sleeve is not less than 1 cm.

[0019] The take-up assembly includes a double gear, a bevel gear, and a winch. One set of gears in the double gear has ordinary teeth and meshes with the drive gear of the continuously variable motor, while the other set has bevel teeth and meshes with the bevel gear. The bevel gear is mounted on the winch shaft, and the double gear drives the winch to rotate through the bevel gear.

[0020] The innermost threaded sleeve end has a groove on its inner wall, and a buckle is installed in the groove. The buckle slides along the groove, and the sampling probe is installed on the buckle. When the threaded sleeve rotates, the buckle can slide in the groove to maintain its original position, thus preventing the data cable connected to the sampling probe from getting tangled.

[0021] The sampling device also includes a handle, with a continuously variable motor mounted in the middle of the handle. Two brackets are respectively set at both ends of the continuously variable motor. A lithium battery is installed inside the handle and is connected to the continuously variable motor through wires. A disc is fixed on one of the brackets and is perpendicular to the bracket. A T-shaped groove is set on the inner wall of the bottom end of the outermost threaded sleeve. A protrusion is set on the outer edge of the disc. The disc is locked in the groove of the outermost threaded sleeve. A through hole is set at the handle position corresponding to this bracket. The data cable passes through the through hole and connects to the end of the innermost threaded sleeve. A bearing is set on the other bracket, and the shaft of the winch is mounted on the bearing. The data cable is wound on the winch.

[0022] In use, the continuously variable motor is turned on. The motor's drive gear drives the outermost threaded sleeve to rotate through the teeth of the outermost threaded sleeve. As the outermost threaded sleeve rotates, the innermost threaded sleeve moves forward using the innermost threaded sleeve. The innermost threaded sleeve moves forward and extends beyond the outermost threaded sleeve, thus increasing the length of the sampling device. When the end of the thread on the outer wall of the innermost threaded sleeve moves to the front end of the thread on the inner wall of the outermost threaded sleeve, the threads of the two lock together, causing the innermost threaded sleeve to stop moving forward and instead rotate around its axis, following the rotation of the outermost threaded sleeve. At this time, the innermost threaded sleeve drives the next innermost threaded sleeve to move forward through the thread on its inner wall. In this way, each layer of threaded sleeve moves forward and rotates sequentially until the innermost threaded sleeve moves forward and then locks, reaching the maximum length of the telescopic assembly. During the extension process, the winch is linked with the continuously variable motor through the bevel gear to continuously release the data cable, providing a connection between the sampling probe and the analysis instrument.

[0023] After sampling, the continuously variable motor reverses, retrieving the innermost threaded sleeves through the outermost threaded sleeve. The rotation of the outermost threaded sleeve drives the innermost threaded sleeve to retract. As the innermost threaded sleeve retracts, the front end of the thread on its outer wall locks with the front end of the thread on the inner wall of the outermost threaded sleeve, changing linear motion into rotational motion, which drives the innermost threaded sleeve to move. During the retrieval process, the threaded sleeves may be retrieved sequentially, or some threaded sleeves may move backward while others rotate, without affecting the retrieval effect. During the retrieval process, the continuously variable motor synchronously drives the winch to reverse, winding and gathering the data cable, and using a spring plate to gently press on the data cable to prevent it from tangling during winding.

Claims

1. A remote secure analytical sampling device, characterized by The sampling device comprises a telescopic assembly, a sampling probe, a stepless motor and a take-up assembly, the telescopic assembly and the take-up assembly are connected with a driving gear on a rotating shaft of the stepless motor, the sampling probe is installed at an end of the telescopic assembly, the sampling probe is connected with an analysis instrument through a data line, the data line is wound on the take-up assembly, wherein: The telescopic assembly is composed of several threaded sleeves, the inner wall of the outermost threaded sleeve is threaded, the outer wall of the rear end is provided with a ring of teeth which are parallel to the central axis of the threaded sleeve, the teeth are engaged with the driving gear of the stepless motor; the outer wall of the innermost threaded sleeve is threaded, the sampling probe is installed at the end of the innermost threaded sleeve; the outer wall and the inner wall of the middle threaded sleeves are threaded, the threads on the inner wall of the outer threaded sleeve are engaged with the threads on the outer wall of the inner threaded sleeve; the length of the threads on the outer wall or the inner wall of each threaded sleeve is less than the length of the threaded sleeve itself, and the distance between the ends of the threads and the edges of the ends of the threaded sleeve is not less than 1cm; The take-up assembly comprises a double gear, a bevel gear and a winch, one set of gears of the double gear is a common tooth which is engaged with the driving gear of the stepless motor, the other set of gears is a bevel gear which is engaged with the bevel gear; the bevel gear is installed on the rotating shaft of the winch, and the double gear drives the winch to rotate through the bevel gear.

2. The remote, secure analytical sampling device of claim 1, wherein The inner wall of the end of the innermost threaded sleeve is provided with a sliding groove, a buckle is installed in the sliding groove, the buckle slides along the sliding groove, the sampling probe is installed on the buckle, when the threaded sleeve rotates, the buckle can slide in the sliding groove to keep in place, avoiding the data line connected with the sampling probe from winding.

3. The remote, secure analysis sampling device of claim 1, wherein The sampling device further comprises a handle, the stepless motor is installed in the middle of the handle, two supports are arranged at the two ends of the stepless motor respectively, a lithium battery is arranged inside the handle, and the lithium battery is connected with the stepless motor through a wire; one of the supports is fixed with a disc which is perpendicular to the support, a T-shaped sliding groove is arranged on the inner wall of the bottom end of the outermost threaded sleeve, a protrusion is arranged on the outer edge of the disc, the disc is clamped in the sliding groove of the outermost threaded sleeve, a through hole is arranged at the position of the handle corresponding to the support, the data line passes through the through hole and is connected with the end of the innermost threaded sleeve; the other support is provided with a bearing, the rotating shaft of the winch is installed on the bearing, and the data line is wound on the winch.

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