CN110006544B

CN110006544B - Telescopic temperature sensor

Info

Publication number: CN110006544B
Application number: CN201910290185.7A
Authority: CN
Inventors: 毛莉君; 张燕
Original assignee: Xian Peihua University
Current assignee: Dragon Totem Technology Hefei Co ltd; Shunde Foshan Crystal Electronics Co ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2021-08-24
Anticipated expiration: 2039-04-11
Also published as: CN110006544A

Abstract

The invention discloses a telescopic temperature sensor which comprises a shell, a baffle, a screw rod, a base and a temperature sensor body, wherein a first through hole in the vertical direction is arranged on the shell in a penetrating mode, the baffle in the horizontal direction is arranged in the first through hole, the baffle is fixedly connected with the inner wall of the first through hole, a threaded hole is arranged in the middle of the baffle in a penetrating mode, the screw rod is arranged in the threaded hole, the base is arranged below the baffle, the lower end of the screw rod is installed on the top end of the base through a bearing, the temperature sensor body is installed on the bottom end of the base, a fixing plate in the horizontal direction is arranged in the first through hole and close to the top, a second through hole is arranged on the fixing plate in a penetrating mode, and the upper end of the screw rod penetrates through the second through hole and is connected with a handle. The invention aims to provide a temperature sensor which is telescopic, has higher measurement precision and can measure the direction of fluid.

Description

Telescopic temperature sensor

Technical Field

The invention relates to the technical field of sensors, in particular to a telescopic temperature sensor.

Background

A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument and has a plurality of varieties. The temperature sensor is often used for detecting the temperature of fluid in the conveying pipeline, and sometimes the fluid is not sufficient in the conveying pipeline, so that the temperature sensor cannot effectively contact the fluid in the conveying pipeline, and the measured temperature is the temperature of air or other impurities above the fluid, and measurement errors of the temperature are caused.

Disclosure of Invention

The invention aims to provide a telescopic temperature sensor to solve the problem that the temperature sensor proposed in the background art cannot effectively contact with fluid in a conveying pipeline, so that temperature measurement errors are caused.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a telescopic temperature sensor, includes casing, baffle, screw rod, base, temperature sensor body, runs through the first through-hole that is provided with vertical direction on the casing, be provided with the baffle of horizontal direction in the first through-hole, baffle and first through-hole inner wall fixed connection, the centre department of baffle runs through and is provided with the screw hole, threaded hole is provided with the screw rod, the below of baffle is provided with the base, the screw rod lower extreme passes through the bearing and installs on the base top, install the temperature sensor body on the base bottom, be close to the fixed plate that top department was provided with the horizontal direction in the first through-hole, run through on the fixed plate and be provided with the second through-hole, the screw rod upper end is passed the second through-hole to be connected with the handle.

Preferably, the baffle runs through and is provided with the guiding hole, be provided with the guide bar in the guiding hole, the guide bar can be in reciprocating motion from top to bottom in the guiding hole, the lower extreme of guide bar with base top end face fixed connection, the upper end fixedly connected with stopper of guide bar, the stopper with be provided with the spring between the baffle.

Preferably, the limiting block is provided with a cavity, a processor is arranged in the cavity, the processor is electrically connected with the temperature sensor body, and the processor is in wireless connection with a computer.

Preferably, still include flow direction detection device, flow direction detection device includes first connecting plate, slide bar, slider, foil gage, the lower terminal surface interval of base is preset apart from being provided with the first connecting plate of vertical direction respectively, two the lower extreme of first connecting plate is provided with the slide bar of horizontal direction, be provided with the slider on the slide bar, the slider can along the slide bar reciprocating motion that makes a round trip, the lower extreme of slider is provided with the temperature sensor body, each be close to on the first connecting plate be provided with the foil gage on one side of slider, the foil gage with treater electric connection, the temperature sensor body with the treater passes through flexible wire and connects.

Preferably, the outer wall of the lower end of the shell is provided with an external thread.

Compared with the prior art, the invention has the beneficial effects that: the invention relates to a telescopic temperature sensor which comprises a shell, a baffle, a screw rod, a base and a temperature sensor body, wherein a first through hole in the vertical direction is arranged on the shell in a penetrating mode, the baffle in the horizontal direction is arranged in the first through hole, the baffle is fixedly connected with the inner wall of the first through hole, a threaded hole is arranged in the middle of the baffle in a penetrating mode, the screw rod is arranged in the threaded hole, the base is arranged below the baffle, the lower end of the screw rod is installed on the top end of the base through a bearing, the temperature sensor body is installed on the bottom end of the base, a fixing plate in the horizontal direction is arranged in the first through hole and close to the top, a second through hole is arranged on the fixing plate in a penetrating mode, and the upper end of the screw rod penetrates through the second through hole and is connected with a handle. Install on the mounting hole of pipeline through the external screw thread on the outer wall of casing lower extreme, when the fluid is insufficient in the pipeline, manual rotation handle for base downstream drives the downstream of temperature sensor body through the screw drive of the screw hole on screw rod and the baffle, thereby invades the fluid in, carries out the measurement of fluid temperature, makes the more accurate measurement fluidic temperature of ability.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the limiting block of the present invention.

Fig. 3 is a working state diagram of the present invention.

Fig. 4 is a schematic structural diagram of the flow direction detection device of the present invention.

In the figure: 1-a shell; 2-a first via; 3-a baffle plate; 4-a threaded hole; 5-a screw; 6-a base; 7-a bearing; 8-temperature sensor body; 9-fixing the plate; 10-a second via; 11-a handle; 12-a pilot hole; 13-a guide bar; 14-a limiting block; 15-a cavity; 16-a processor; 18-a first connection plate; 19-a slide bar; 20-a slide block; 21-a strain gage; 22-conduit, 23-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the invention provides a telescopic temperature sensor, which comprises a housing 1, a baffle 3, a screw 5, a base 6 and a temperature sensor body 8, wherein an external thread is arranged on the outer wall of the lower end of the housing 1, a first through hole 2 in the vertical direction is arranged on the housing 1 in a penetrating manner, the baffle 3 in the horizontal direction is arranged in the first through hole 2, the baffle 3 is fixedly connected with the inner wall of the first through hole 2, a threaded hole 4 is arranged in the middle of the baffle 3 in a penetrating manner, the screw 5 is arranged in the threaded hole 4, the base 6 is arranged below the baffle 3, the lower end of the screw 5 is arranged on the top end of the base 6 through a bearing 7, the temperature sensor body 8 is arranged on the bottom end of the base 6, a fixing plate 9 in the horizontal direction is arranged in the first through hole 2 and close to the top, a second through hole 10 is arranged on the fixing plate 9 in a penetrating manner, the upper end of the screw rod 5 passes through the second through hole 10 and is connected with a handle 11.

The working principle is as follows: install on the mounting hole of pipeline 22 through the external screw thread on the outer wall of casing 1 lower extreme, when the fluid is insufficient in the pipeline, manual rotation handle 11, screw transmission through screw rod 5 and screw hole 4 on the baffle 3, make base 6 downstream, drive temperature sensor body 8 downstream, thereby invade in the fluid, carry out the measurement of fluid temperature, make the temperature of the measurement fluid that can be more accurate, second through-hole 10 on the fixed plate 9 plays the effect of injecing screw rod 5, prevent that the screw rod from rocking about rotatory in-process.

The preferable technical scheme is that a guide hole 12 is formed in the baffle 3 in a penetrating mode, a guide rod 13 is arranged in the guide hole 12, the guide rod 13 can reciprocate up and down in the guide hole 12, the lower end of the guide rod 13 is fixedly connected with the top end face of the base 6, a limiting block 14 is fixedly connected to the upper end of the guide rod 13, and a spring 23 is arranged between the limiting block 14 and the baffle 3. The guide rod 13 can reciprocate up and down along the guide hole 12 along with the base 6, and can prevent the base 6 from rotating, so that the base 6 moves more stably downwards; the stopper 14 defines a limit distance of the downward movement of the base 6, and prevents the temperature sensor body 8 from contacting the lower inner wall of the pipe 22, resulting in a measurement error.

The preferable technical scheme is that the limiting block 14 is provided with a cavity 15, a processor 16 is arranged in the cavity 15, a battery is further arranged in the cavity 15 and used for providing electric energy for each electronic device, the processor 16 is electrically connected with the temperature sensor body 8, and the processor 16 is in wireless connection with a computer. The temperature sensor body 8 transmits the detected fluid temperature information to the processor 16, and the processor 16 transmits the information to the computer for data arrangement and analysis.

Preferably, as shown in fig. 4, the device further comprises a flow direction detection device, wherein the flow direction detection device comprises a first connecting plate 18, a sliding rod 19, a sliding block 20 and a strain gauge 21, the lower end surfaces of the bases 6 are respectively provided with first connecting plates 18 in the vertical direction at preset intervals, the interval can be adjusted according to the design requirement, the lower ends of the two first connecting plates 18 are provided with sliding rods 19 in the horizontal direction, a slide block 20 is arranged on the slide rod 19, the slide block 20 can reciprocate back and forth along the slide rod 19, the lower end of the slide block 20 is provided with the temperature sensor body 8, one side of each first connecting plate 18 close to the slide block 20 is provided with a strain gauge 21, the strain gauge 21 is electrically connected with the processor 16, and the temperature sensor body 8 is connected with the processor 16 through a flexible lead. When fluid flows, under the pressure of the fluid, the sliding block 20 moves to one end along the sliding rod 19 and is connected and contacted with the strain gauge 21 at the lower end of one of the first connecting plates 18, the strain gauge 21 transmits pressure information to the processor 16, the processor 16 can judge the flow direction of the fluid according to the pressure condition of the strain gauges 21 at the left side and the right side, and the processor 16 judges the direction as the fluid direction when the pressure value can be exerted on one strain gauge 21, and then transmits the direction to the processor 16 for calculation.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although the present specification has been described in terms of embodiments, it will be appreciated by those of ordinary skill in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable temperature sensor, characterized by: comprises a shell (1), a baffle (3), a screw rod (5), a base (6) and a temperature sensor body (8), wherein a first through hole (2) in the vertical direction is arranged on the shell (1) in a penetrating manner, the baffle (3) in the horizontal direction is arranged in the first through hole (2), the baffle (3) is fixedly connected with the inner wall of the first through hole (2), a threaded hole (4) is arranged in the middle of the baffle (3) in a penetrating manner, the screw rod (5) is arranged in the threaded hole (4), the base (6) is arranged below the baffle (3), the lower end of the screw rod (5) is arranged on the top end of the base (6) through a bearing (7), the temperature sensor body (8) is arranged on the bottom end of the base (6), a fixing plate (9) in the first through hole (2) and close to the top is arranged in the horizontal direction, a second through hole (10) is arranged on the fixing plate (9) in a penetrating manner, the upper end of the screw rod (5) penetrates through the second through hole (10) and is connected with a handle (11);

the baffle (3) is provided with a guide hole (12) in a penetrating manner, a guide rod (13) is arranged in the guide hole (12), the guide rod (13) can reciprocate up and down in the guide hole (12), the lower end of the guide rod (13) is fixedly connected with the top end face of the base (6), the upper end of the guide rod (13) is fixedly connected with a limiting block (14), and a spring (23) is arranged between the limiting block (14) and the baffle (3);

the limiting block (14) is provided with a cavity (15), a processor (16) is arranged in the cavity (15), the processor (16) is electrically connected with the temperature sensor body (8), and the processor (16) is in wireless connection with a computer;

the device also comprises a flow direction detection device, the flow direction detection device comprises a first connecting plate (18), a sliding rod (19), a sliding block (20) and a strain gauge (21), the lower end surfaces of the bases (6) are respectively provided with first connecting plates (18) in the vertical direction at preset intervals, the lower ends of the two first connecting plates (18) are provided with sliding rods (19) in the horizontal direction, the sliding rod (19) is provided with a sliding block (20), the sliding block (20) can reciprocate back and forth along the sliding rod (19), the lower end of the sliding block (20) is provided with the temperature sensor body (8), one side of each first connecting plate (18) close to the sliding block (20) is provided with a strain gauge (21), the strain gauge (21) is electrically connected with the processor (16), and the temperature sensor body (8) is connected with the processor (16) through a flexible lead.

2. A retractable temperature sensor as set forth in claim 1, wherein: and an external thread is arranged on the outer wall of the lower end of the shell (1).