Plug-in temperature sensor
By designing an installation structure consisting of a sliding sleeve, a return spring, a compression ring, and a steel ball, the problem of inconvenient replacement of insertion-type temperature sensors when damaged is solved, enabling convenient installation and replacement and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-07
AI Technical Summary
Existing insertion-type temperature sensors are inconvenient to replace when damaged, lack convenient installation structures, and affect work efficiency.
An installation structure comprising a sliding sleeve, a return spring, a compression ring, and a steel ball was designed. The temperature sensor can be conveniently installed and replaced through elastic sliding and snap-fit fixing, combined with the flange and the pipe connection fixing.
This enables convenient installation and replacement of temperature sensors, reduces the need for pipe modifications, and improves work efficiency.
Smart Images

Figure CN224095277U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to temperature sensor technical field, concretely is a kind of plug-in temperature sensor. BACKGROUND
[0002] Temperature sensor is the sensor that can feel temperature and convert into usable output signal.Temperature sensor is the core part of temperature measuring instrument, and there are many varieties, can be divided into contact type and non-contact type two big categories according to measurement mode, and is divided into thermal resistance and thermocouple two categories according to sensor material and electronic component characteristics.Plug-in temperature sensor is a device that directly measures medium temperature through physical contact, and is widely used in temperature monitoring of soil, water body, building materials and the like.
[0003] The utility model discloses a kind of plug-in temperature sensor of Chinese utility model patent No.CN210128779U, including support plate, outer sleeve, inner sleeve and temperature measuring element, outer sleeve is fixedly inserted with support plate, the lower end of outer sleeve is set as open, inner sleeve is slidably arranged in the inside of outer sleeve, the outer side wall of the left and right sides of inner sleeve is fixedly connected with slider on upper end, the inner side wall of inner sleeve is equipped with two sliding grooves matched with slider, the upper inner side wall of outer sleeve is rotatably connected with threaded rod by the rolling bearing, the lower end of threaded rod extends to the inside of inner sleeve and is threadedly connected with inner sleeve, the upper end of threaded rod extends to the upper of outer sleeve and is set, the lower end of inner sleeve is fixedly connected with temperature measuring element.The utility model is convenient for inserting temperature sensor into the inside of pipeline to measure, and it is convenient to contract temperature sensor, and it is convenient to clamp and fix temperature sensor and pipeline, and it is convenient to release people's hands and improve work efficiency.
[0004] However, the utility model in the use process, the device does not set up the structure that it is convenient to install temperature sensor, when temperature sensor is damaged, then it is not convenient to directly replace it, so as not to facilitate staff actual use, can not satisfy production demand, so as to propose a kind of plug-in temperature sensor to solve the problems presented in the above. UTILITY MODEL CONTENT
[0005] In view of the deficiencies of prior art, the utility model provides a kind of plug-in temperature sensor, with the advantage that temperature sensor is installed, solve the problem that the existing temperature sensor does not set up the structure that it is convenient to install temperature sensor, when temperature sensor is damaged, then it is not convenient to directly replace it, so as not to facilitate staff actual use.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of plug-in temperature sensor, including temperature dial and the installation pipe of setting at the bottom of temperature dial, the bottom of temperature dial is provided with the installation structure extending to the inside of installation pipe;
[0007] The mounting structure includes an insertion tube fixedly connected to the bottom of the temperature dial and extending into the interior of the mounting tube. A sliding sleeve is slidably connected to the outside of the mounting tube. A compression ring is fixedly connected to the inner wall of the sliding sleeve. A return spring is sleeved on the outer surface of the mounting tube. The top end of the return spring is fixedly connected to the compression ring. A steel ball extending into the interior of the insertion tube is slidably connected to the inside of the mounting tube.
[0008] Furthermore, the interior of the mounting tube is provided with a through hole adapted to the steel ball, and the outer surface of the insertion tube is provided with a mounting groove adapted to the steel ball.
[0009] Furthermore, the inner wall of the extrusion ring is in contact with the outer wall of the mounting tube, and the height of the extrusion ring is greater than the diameter of the through hole on the mounting tube.
[0010] Furthermore, a limiting ring capable of limiting the extrusion ring is fixedly connected to the top of the outer surface of the mounting tube, and a positioning ring is fixedly connected to the outside of the insertion tube, the outer diameter of the positioning ring being equal to the outer diameter of the mounting tube.
[0011] Furthermore, a sealing gasket is fixedly connected to the inner wall of the mounting tube, the sealing gasket abuts against the bottom end of the insertion tube, and a temperature detection probe that penetrates the sealing gasket is fixedly connected to the bottom of the temperature dial.
[0012] Furthermore, an installation pipe is fixedly connected to the end of the installation pipe away from the temperature gauge, and flanges are fixedly connected to both ends of the installation pipe.
[0013] Furthermore, the outer diameter of the flange is 215mm, and the center distance of the flange is 180mm.
[0014] Compared with the prior art, this utility model provides an insertion-type temperature sensor with the following features:
[0015] Beneficial effects:
[0016] 1. This insertion-type temperature sensor, by setting a sliding sleeve and a return spring, allows the sliding sleeve to elastically slide on the surface of the mounting tube. A compression ring further compresses the steel ball and the return spring. When the insertion tube is inserted into the mounting tube, the insertion tube compresses the steel ball outwards. Then, by releasing the sliding sleeve, the return spring causes the sliding sleeve to spring upwards, at which point the compression ring compresses the steel ball into the insertion tube. Combined with the mounting slot, this allows for secure clamping of the insertion tube, facilitating the installation of the temperature sensor.
[0017] 2. This insertion-type temperature sensor, through the installation of pipes and flanges, allows the temperature sensor to be directly connected and fixed to the pipeline, thereby further facilitating installation. At the same time, it does not require significant modifications to existing pipelines. This solves the problem that existing temperature sensors do not have a convenient structure for installation, and when the temperature sensor is damaged, it is inconvenient to replace it directly, thus making it inconvenient for operators to use. Attached Figure Description
[0018] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the installation structure of this utility model;
[0020] Figure 3 This utility model Figure 2 A magnified structural diagram of structure A is shown below;
[0021] Figure 4 This is a schematic diagram of the temperature detection probe of this utility model.
[0022] In the diagram: 1. Temperature dial; 2. Mounting tube; 3. Insertion tube; 4. Sliding sleeve; 5. Compression ring; 6. Return spring; 7. Steel ball; 8. Limiting ring; 9. Positioning ring; 10. Sealing gasket; 11. Mounting slot; 12. Temperature detection probe; 13. Mounting pipe; 14. Flange. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1 to 3 An insertion-type temperature sensor in this embodiment includes a temperature dial 1 and a mounting tube 2 disposed at the bottom of the temperature dial 1. The bottom of the temperature dial 1 is provided with a mounting structure extending into the mounting tube 2. The mounting structure includes an insertion tube 3 fixedly connected to the bottom of the temperature dial 1 and extending into the mounting tube 2. A sliding sleeve 4 is slidably connected to the outside of the mounting tube 2. A compression ring 5 is fixedly connected to the inner wall of the sliding sleeve 4. A return spring 6 is sleeved on the outer surface of the mounting tube 2. The top end of the return spring 6 is fixedly connected to the compression ring 5. A steel ball 7 extending into the insertion tube 3 is slidably connected inside the mounting tube 2.
[0025] Specifically, the inside of the mounting tube 2 is provided with a through hole that matches the steel ball 7, and the outer surface of the insertion tube 3 is provided with a mounting groove 11 that matches the steel ball 7. The inner wall of the compression ring 5 is in contact with the outer wall of the mounting tube 2, and the height of the compression ring 5 is greater than the diameter of the through hole on the mounting tube 2.
[0026] It should be noted that the outer surface of the sliding sleeve 4 is provided with anti-slip texture. By setting the sliding sleeve 4 and the return spring 6, the sliding sleeve 4 can elastically slide on the surface of the mounting tube 2. The compression ring 5 can compress the steel ball 7 and the return spring 6 respectively. When the operator inserts the insertion tube 3 into the mounting tube 2, the insertion tube 3 will compress the steel ball 7 outward. Then, by releasing the sliding sleeve 4, the return spring 6 can make the sliding sleeve 4 spring upward. At this time, the compression ring 5 can compress the steel ball 7 into the insertion tube 3. By cooperating with the mounting slot 11, the insertion tube 3 can be locked and fixed.
[0027] Please see Figure 1 and Figure 4 In this embodiment, a limiting ring 8 that can limit the compression ring 5 is fixedly connected to the top of the outer surface of the mounting tube 2, a positioning ring 9 is fixedly connected to the outside of the insertion tube 3, the outer diameter of the positioning ring 9 is equal to the outer diameter of the mounting tube 2, a sealing gasket 10 is fixedly connected to the inner wall of the mounting tube 2, the sealing gasket 10 abuts against the bottom end of the insertion tube 3, and a temperature detection probe 12 that penetrates the sealing gasket 10 is fixedly connected to the bottom of the temperature dial 1.
[0028] Specifically, the temperature dial 1 is electrically connected to the temperature detection probe 12. By setting the limit ring 8, the sliding sleeve 4 can be limited to prevent it from falling outward.
[0029] Please see Figure 1 In this embodiment, the end of the mounting pipe 2 away from the temperature dial 1 is fixedly connected to the mounting pipe 13, and both ends of the mounting pipe 13 are fixedly connected to the flange 14. The outer diameter of the flange 14 is 215mm, and the center distance of the flange 14 is 180mm.
[0030] Specifically, flange 14 of this size is suitable for most municipal water supply and chemical pipelines, ensuring a certain degree of versatility.
[0031] The working principle of the above embodiments is as follows:
[0032] First, the operator slides the sliding sleeve 4 downwards, then inserts the insertion tube 3 into the installation tube 2. When the bottom end of the insertion tube 3 abuts against the sealing gasket 10, the sliding sleeve 4 is released. At this time, due to the action of the return spring 6, the sliding sleeve 4 can be ejected upwards. At this time, the compression ring 5 will compress the steel ball 7, and the steel ball 7 can be locked and fixed to the insertion tube 3. After that, the operator installs the installation pipe 13 on the pipe where the liquid temperature needs to be detected through the flange 14.
[0033] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.
[0034] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to 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.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0036] 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 claims and their equivalents.
Claims
1. An insertion-type temperature sensor, comprising a temperature dial (1) and a mounting tube (2) disposed at the bottom of the temperature dial (1), characterized in that: The bottom of the temperature dial (1) is provided with a mounting structure extending into the mounting tube (2); The mounting structure includes an insertion tube (3) fixedly connected to the bottom of the temperature dial (1) and extending into the mounting tube (2). A sliding sleeve (4) is slidably connected to the outside of the mounting tube (2). A compression ring (5) is fixedly connected to the inner wall of the sliding sleeve (4). A return spring (6) is sleeved on the outer surface of the mounting tube (2). The top end of the return spring (6) is fixedly connected to the compression ring (5). A steel ball (7) extending into the insertion tube (3) is slidably connected inside the mounting tube (2).
2. The insertion-type temperature sensor according to claim 1, characterized in that: The installation tube (2) has a through hole inside that is compatible with the steel ball (7), and the insertion tube (3) has an installation groove (11) on its outer surface that is compatible with the steel ball (7).
3. The insertion-type temperature sensor according to claim 2, characterized in that: The inner wall of the extrusion ring (5) is in contact with the outer wall of the mounting tube (2), and the height of the extrusion ring (5) is greater than the diameter of the through hole on the mounting tube (2).
4. The insertion-type temperature sensor according to claim 1, characterized in that: A limiting ring (8) that can limit the compression ring (5) is fixedly connected to the top of the outer surface of the mounting tube (2), and a positioning ring (9) is fixedly connected to the outside of the insertion tube (3). The outer diameter of the positioning ring (9) is equal to the outer diameter of the mounting tube (2).
5. An insertion-type temperature sensor according to claim 1, characterized in that: A sealing gasket (10) is fixedly connected to the inner wall of the mounting tube (2), and the sealing gasket (10) abuts against the bottom end of the insertion tube (3). A temperature detection probe (12) that penetrates the sealing gasket (10) is fixedly connected to the bottom of the temperature dial (1).
6. The insertion-type temperature sensor according to claim 1, characterized in that: The installation pipe (2) is fixedly connected to an installation pipe (13) at one end away from the temperature dial (1), and both ends of the installation pipe (13) are fixedly connected to flanges (14).
7. An insertion-type temperature sensor according to claim 6, characterized in that: The outer diameter of the flange (14) is 215 mm, and the center distance of the flange (14) is 180 mm.
Citation Information
Patent Citations
Plug-in temperature sensor
CN210128779U