Platinum resistor temperature sensor protecting and fixing device

Abstract

The utility model belongs to the technical field of temperature sensor installation, and particularly relates to a platinum resistor temperature sensor protecting and fixing device, which comprises a preassembled piece, the preassembled piece is connected with a stabilizing piece, and the stabilizing piece is connected with a protecting piece. According to the utility model, through the arrangement of the stabilizing member and the protection member, on one hand, the protection member and the stabilizing member can be conveniently installed and used, and on the other hand, the protection member can be fixedly supported by the stabilizing member, so that the plurality of protection columns on the protection member can carry out enclosure protection on a temperature measurement element on the platinum resistance sensor; and the plurality of protection columns can disperse the flowing liquid around the temperature measurement element, and the temperature measurement work of the temperature measurement element is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature sensor installation, and in particular relates to a protective fixing device for a platinum resistance temperature sensor. Background Art

[0002] Platinum resistance temperature sensors measure temperature by exploiting the property of platinum metal: its resistance changes with temperature. The display will indicate the temperature corresponding to the resistance of the platinum resistor. When a temperature gradient exists within the measured medium, the measured temperature is the average temperature of the dielectric layer within the range of the temperature sensing element. The resistance varies with temperature. Connecting a platinum resistor to a circuit and observing the change in current reveals the change in resistance. By recording the current at different temperatures and plotting a temperature-resistance graph, the temperature can be inferred from the known resistance.

[0003] Problems with existing technologies:

[0004] At present, platinum resistance sensors are also widely used in the biological field. Threaded connections are mostly used to install platinum resistance sensors and biological equipment. Therefore, when used in fermentation tanks for stirred reaction liquid phase temperature measurement, the liquid inside the tank is in a stirred flow state, causing an impact flow on the temperature measuring element of the platinum resistance sensor. Over time, this can easily cause torsional damage to the temperature measuring element, thereby affecting the service life of the platinum resistance sensor. Utility Model Content

[0005] The purpose of the utility model is to provide a platinum resistance temperature sensor protection and fixing device, which can solve the problem that when some fermentation tanks are used for stirring reaction liquid phase temperature measurement, because their interior is in a stirring flow state, the liquid forms an impact flow on the temperature measuring element of the platinum resistance sensor, which is easy to cause torsional damage to the temperature measuring element over time, thereby shortening the service life of the platinum resistance sensor.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] A platinum resistance temperature sensor protection and fixing device comprises a pre-installed component, wherein the pre-installed component is connected to a stabilizing component, and the stabilizing component is connected to a protective component.

[0008] The pre-assembled part includes a trepanning wire, the inner and outer hollow walls of the trepanning wire are both provided with spiral patterns, the outer spiral patterns of the trepanning wire are threadedly connected to the spiral holes provided on the mounting device, and the inner spiral patterns of the trepanning wire are adapted to the spiral patterns on the platinum resistance temperature sensor.

[0009] The trepanning wire is fixedly connected to the pushing disk, and the side surface of the pushing disk is fixedly connected to the torsion portion fixedly connected to the trepanning wire.

[0010] The other side surface of the pushing disk is provided with a first sealing ring through a first groove.

[0011] The stabilizing member comprises a wall-attached plate, which is sleeved with a ferrule wire through a first circular hole. A second sealing ring is sleeved through a second groove in the first circular hole of the wall-attached plate.

[0012] The upper and lower ends of the side surfaces of the wall-attached plate are respectively fixedly connected to the two sleeve frame plates, and the two sleeve frame plates are each provided with a second circular hole.

[0013] The protective member includes two stabilizing plates, the opposite end sides of the two stabilizing plates are fixedly connected to the two plug-in plates respectively, the two plug-in plates are respectively adapted to the two frame plates, and the opposite ends of the two stabilizing plates are fixedly connected to the back sides of two symmetrically arranged semicircular rings respectively.

[0014] The opposite sides of the two semicircular rings are provided with grooves that are sleeved with the outer circumferential surface of the torsion part. The upper surfaces of the two ends of the lower semicircular ring are respectively fixedly connected to the two plug-in columns. The bottom surfaces of the two ends of the upper semicircular ring are both provided with second circular holes, and the two second circular holes are respectively adapted to the two plug-in columns.

[0015] The sides of the two semicircular rings are fixedly connected with a plurality of semicircularly distributed protective columns, and the plurality of protective columns are all configured to be conical in shape with their right ends contracted, and the right ends of the plurality of protective columns are configured to be conical in shape close to each other.

[0016] The two stabilizing plates are both provided with first screw holes matching the screws, and the two socket plates are both provided with second screw holes corresponding to the first screw holes, and the second screw holes are also matched with the screws, and the screws are sleeved with one of the first round holes.

[0017] The technical effects achieved by this utility model are:

[0018] The utility model can be installed and fixed inside the stirring tank by providing pre-installed parts and fixing parts, while not affecting the installation of the platinum resistance sensor, thereby improving the installation effect of the device.

[0019] The utility model provides the pre-installed parts, the stabilizing parts and the protective parts, so that the protective parts can be installed by relying on the stabilizing parts, thereby facilitating installation and use at the liquid phase temperature measurement position inside the stirring tank.

[0020] The utility model provides a stabilizing member and a protective member, which, on the one hand, facilitates the installation and use of the protective member and the stabilizing member, and on the other hand, allows the protective member to be fixedly supported by the stabilizing member, so that the multiple protective columns on the protective member can enclose and protect the temperature measuring element on the platinum resistance sensor, and the multiple protective columns can disperse the flowing liquid around the temperature measuring element without affecting the temperature measuring work of the temperature measuring element.

[0021] The utility model provides a plurality of protective columns, which can form a shrinking column shape and automatically separate impurities carried by the flowing liquid, thereby avoiding accumulation on the temperature measuring element, increasing the resistance to the water flow, and affecting the temperature measurement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view structural diagram of the present utility model;

[0023] Figure 2 It is a structural diagram of the pre-assembled parts in the utility model;

[0024] Figure 3 It is a structural diagram of the stabilizing member in the utility model;

[0025] Figure 4 It is a structural diagram of the protective element in the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Pre-assembled parts; 11. Hole thread; 12. Pushing plate; 13. Torsion part; 14. First sealing ring; 2. Stabilizing part; 21. Wall plate; 22. Second sealing ring; 23. Frame plate; 3. Protective part; 31. Stabilizing plate; 32. Insert plate; 33. Semi-circular ring; 34. Insert column; 35. Protective column. DETAILED DESCRIPTION

[0028] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0029] like Figure 1 As shown, a platinum resistance temperature sensor protection and fixing device includes a pre-installed component 1, the pre-installed component 1 is connected to a fixing component 2, and the fixing component 2 is connected to a protective component 3.

[0030] The pre-assembled part 1 includes a ferrule wire 11, the inner and outer walls of the hollow ferrule wire 11 are provided with spiral patterns, the outer spiral patterns of the ferrule wire 11 are threadedly connected to the spiral holes provided on the mounting device, and the inner spiral patterns of the ferrule wire 11 are adapted to the spiral patterns on the platinum resistance temperature sensor.

[0031] Refer to the attached Figure 2 The trepanning wire 11 is fixedly connected to the pushing disk 12 , and the side surface of the pushing disk 12 is fixedly connected to the torsion portion 13 fixedly connected to the trepanning wire 11 .

[0032] Furthermore, a first sealing ring 14 is provided on the other side of the pushing disk 12 through a first groove.

[0033] According to the above structure, the first sealing ring 14 and the wall-adhering plate 21 can be squeezed to form a seal, thereby improving the sealing effect between the stabilizing member 2 and the pre-assembled member 1.

[0034] Refer to the attached Figure 3 The stabilizing member 2 includes a wall-attached plate 21, which is sleeved with the grommet wire 11 through a first circular hole. A second sealing ring 22 is sleeved in the first circular hole of the wall-attached plate 21 through a second groove.

[0035] Furthermore, the upper and lower ends of the side surfaces of the wall-attached plate 21 are fixedly connected to the two frame plates 23 respectively, and the two frame plates 23 are each provided with a second circular hole.

[0036] According to the above structure, the second sealing ring 22 can be squeezed to form an extrusion seal with the inner wall of the mixing tank, thereby avoiding leakage at the installation position.

[0037] Refer to the attached Figure 4 The protective member 3 includes two stabilizing plates 31, the opposite end sides of the two stabilizing plates 31 are fixedly connected to the two plug-in plates 32, the two plug-in plates 32 are respectively adapted to the two frame plates 23, and the opposite ends of the two stabilizing plates 31 are respectively fixedly connected to the back sides of two symmetrically arranged semicircular rings 33.

[0038] Furthermore, the opposite sides of the two semicircular rings 33 are provided with grooves that are sleeved with the outer circumferential surface of the torsion portion 13, and the upper surfaces of the two ends of the lower semicircular ring 33 are fixedly connected to the two plug-in columns 34 respectively. The bottom surfaces of the two ends of the upper semicircular ring 33 are provided with second circular holes, and the two second circular holes are respectively adapted to the two plug-in columns 34.

[0039] Furthermore, multiple protective columns 35 distributed in a semicircle are fixedly connected to the side surfaces of the two semicircular rings 33. The multiple protective columns 35 are all configured to be conical in shape with their right ends contracted, and the right ends of the multiple protective columns 35 are configured to be conical in shape close to each other.

[0040] Furthermore, both stabilizing plates 31 are provided with first screw holes matching the screws, and both inserting plates 32 are provided with second screw holes corresponding to the first screw holes, and the second screw holes are also matched with the screws, and the screws are socketed with one of the first round holes.

[0041] According to the above structure, the two plug-in plates 32 on the protective part 3 are respectively inserted and sleeved with the two frame plates 23, thereby driving the two semicircular rings 33 to merge with each other to clamp the torsion part 13, and at the same time, the plug-in column 34 on the lower semicircular ring 33 is also inserted and sleeved with the second circular hole on the upper semicircular ring 33, so that the two semicircular rings 33 are merged, so that the multiple protective columns 35 on the two semicircular rings 33 form a barrier protection for the temperature measurement and pregnancy test on the platinum resistance sensor, and then the stabilizing plate 31 on the protective part 3 is connected to the frame plate 23 and the plug-in plate 32 by screws, so that the protective part 3 is connected to the stabilizing part 2 together.

[0042] The working principle of the present invention is as follows: first, the stabilizing member 2 is sleeved with the trepanning wire 11 on the pre-assembled member 1, and then the trepanning wire 11 is spirally connected to the spiral hole opened on the mixing tank. At the same time, the trepanning wire 11 drives the pushing disk 12 and the first sealing ring 14 to squeeze the wall-attached plate 21 on the stabilizing member 2, so that the wall-attached plate 21 is fully in contact with the inner wall of the mixing tank. In this way, the stabilizing member 2 can be installed inside the mixing tank through the pre-assembled member 1, and then the platinum resistance sensor is installed in the trepanning wire 11 and penetrates into the interior of the mixing tank, and then the two plug-in plates on the protective member 3 are inserted. 32 are respectively inserted and sleeved with the two sleeve plates 23, thereby driving the two semicircular rings 33 to merge with each other to clamp the torsion part 13, and at the same time, the plug-in column 34 on the lower semicircular ring 33 is also inserted and sleeved with the second circular hole on the upper semicircular ring 33, so that the two semicircular rings 33 are merged, so that the multiple protective columns 35 on the two semicircular rings 33 form a barrier protection for the temperature measurement and pregnancy test on the platinum resistance sensor, and then the stabilizing plate 31 on the protective part 3 is connected with the sleeve plate 23 and the plug-in plate 32 by screws, so that the protective part 3 is connected to the stabilizing part 2 together.

[0043] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A platinum resistance temperature sensor protection and fixing device, comprising a pre-assembled part (1), characterized in that: The pre-assembled component (1) is connected to the stabilizing component (2), and the stabilizing component (2) is connected to the protective component (3); The preassembled component (1) includes a ferrule wire (11), wherein the inner and outer hollow walls of the ferrule wire (11) are both provided with spiral patterns, the outer spiral patterns of the ferrule wire (11) are threadedly connected to the spiral holes provided on the mounting device, and the inner spiral patterns of the ferrule wire (11) are adapted to the spiral patterns on the platinum resistance temperature sensor.

2. A platinum resistance temperature sensor protection and fixing device according to claim 1, characterized in that: The trepanning wire (11) is fixedly connected to the pushing disk (12), and the side surface of the pushing disk (12) is fixedly connected to the torsion portion (13) fixedly connected to the trepanning wire (11).

3. A platinum resistance temperature sensor protection and fixing device according to claim 2, characterized in that: The other side surface of the pushing disk (12) is provided with a first sealing ring (14) through a first groove.

4. The platinum resistance temperature sensor protection and fixing device according to claim 1, characterized in that: The stabilizing member (2) comprises a wall-attached plate (21), wherein the wall-attached plate (21) is sleeved with the grommet wire (11) via a first circular hole, and a second sealing ring (22) is sleeved in the first circular hole of the wall-attached plate (21) via a second groove.

5. The platinum resistance temperature sensor protection and fixing device according to claim 4, characterized in that: The upper and lower ends of the side surfaces of the wall-attached plate (21) are respectively fixedly connected to two sleeve frame plates (23), and the two sleeve frame plates (23) are each provided with a second circular hole.

6. The platinum resistance temperature sensor protection and fixing device according to claim 1, characterized in that: The protective member (3) comprises two stabilizing plates (31), the side surfaces of the two stabilizing plates (31) facing away from each other are fixedly connected to the two insert plates (32), the two insert plates (32) are respectively adapted to the two frame plates (23), and the opposite ends of the two stabilizing plates (31) are respectively fixedly connected to the back surfaces of two symmetrically arranged semicircular rings (33).

7. A platinum resistance temperature sensor protection and fixing device according to claim 6, characterized in that: The opposing sides of the two semicircular rings (33) are provided with slots that are sleeved with the outer peripheral surface of the torsion portion (13); the upper surfaces of both ends of the lower semicircular ring (33) are fixedly connected to the two plug-in columns (34); the bottom surfaces of both ends of the upper semicircular ring (33) are provided with second circular holes, and the two second circular holes are respectively adapted to the two plug-in columns (34).

8. The platinum resistance temperature sensor protection and fixing device according to claim 6, characterized in that: The sides of the two semicircular rings (33) are fixedly connected to a plurality of semicircularly distributed protective columns (35), and the plurality of protective columns (35) are all configured to have a conical shape with their right ends contracted, and the right ends of the plurality of protective columns (35) are configured to have a conical shape close to each other.

9. The platinum resistance temperature sensor protection and fixing device according to claim 6, characterized in that: The two stabilizing plates (31) are each provided with a first screw hole that matches the screw, and the two inserting plates (32) are each provided with a second screw hole that corresponds to the first screw hole, and the second screw hole also matches the screw, and the screw is sleeved with one of the first circular holes.

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