Distance-adjustable multi-point temperature measuring device

Abstract

The utility model relates to the technical field of temperature measurement, in particular to a distance-adjustable multi-point temperature measuring device. The device comprises a sealing seat, a transmission sleeve, a transmission assembly, a transmission rod, a connecting rod and a thermocouple, the central axis of the transmission sleeve penetrates through the sealing seat in the first direction and is connected with the transmission assembly, and the transmission assembly is used for driving the transmission sleeve to move relative to the sealing seat in the first direction; the transmission rod is arranged in the transmission sleeve in a penetrating mode and can move in the first direction relative to the transmission sleeve. The connecting rod is provided with a first connecting end and a second connecting end which are opposite to each other, the first connecting end of the connecting rod is hinged with the end part of the transmission sleeve, and the second connecting end of the connecting rod is hinged with the thermocouple; and the thermocouple is also hinged with the end part of the transmission rod close to one side of the second connecting end of the connecting rod. Through the arrangement, temperature detection of different areas at a time can be effectively achieved, the structure is simple, operation is convenient, and good application prospects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measurement, in particular to an adjustable-distance multi-point temperature measuring device. Background Art

[0002] At present, when testing the internal temperature of a container to be tested, an external thermocouple is usually placed inside the container for testing. However, a general temperature measuring device can only obtain the temperature of one area. If the temperature of other areas is to be tested, the thermocouple needs to be disassembled multiple times for multiple positioning tests.

[0003] For example, in the temperature calibration of a tubular heating reactor, an external contact thermocouple is usually placed inside the reactor and compared with the temperature measured by the temperature measuring device of the reactor to calibrate the temperature inside the tubular reactor. However, in a vacuum environment, it is difficult to measure the accurate temperature inside the reactor due to the lack of a heat-conducting medium, and when it is necessary to obtain the temperature of multiple areas inside the reactor, the external thermocouple needs to be disassembled and repositioned multiple times, which is cumbersome and time-consuming. Utility Model Content

[0004] In order to solve at least one of the shortcomings of the reactor temperature detection in the above-mentioned prior art, the utility model provides an adjustable distance multi-point temperature measuring device, which at least includes: a sealing seat, a transmission sleeve, a transmission assembly, a transmission rod, a connecting rod and a thermocouple;

[0005] The central axis of the transmission sleeve passes through the sealing seat along a first direction and is connected to the transmission assembly, and the transmission assembly is used to drive the transmission sleeve to move along the first direction relative to the sealing seat; the transmission rod is inserted into the transmission sleeve and can move along the first direction relative to the transmission sleeve; the connecting rod has a first connecting end and a second connecting end opposite to each other, the first connecting end of the connecting rod is hinged to the end of the transmission sleeve, and the second connecting end of the connecting rod is hinged to the thermocouple; the thermocouple is also hinged to the end of the transmission rod close to the second connecting end of the connecting rod.

[0006] In one embodiment, a cavity and a connecting hole are formed inside the sealing seat, which pass through the sealing seat in a first direction and are connected to each other. A avoidance hole is formed on the surface of the sealing seat, and the avoidance hole is connected to the cavity; the transmission sleeve passes through the connecting hole and the cavity, and a rack guide is formed on the outer surface of the transmission sleeve located in the cavity along the first direction; the transmission assembly includes a rotating shaft and a gear located at one end of the rotating shaft, the rotating shaft passes through the avoidance hole and extends the gear at the end of the rotating shaft into the cavity, and the gear is meshed with the rack guide.

[0007] In one embodiment, a first sealing component is provided at the connecting hole.

[0008] In one embodiment, a second sealing assembly is provided at the avoidance hole.

[0009] In one embodiment, a joint hole communicating with the cavity is further formed on the outer surface of the sealing seat, an aviation joint is fixed on the joint hole, and the wiring of the thermocouple is led out from the cavity through the aviation joint.

[0010] In one embodiment, a plurality of installation grooves are provided at intervals on the outer side wall of the sealing seat; the installation grooves are used to fix the adjustable-distance multi-point temperature measuring device.

[0011] In one embodiment, the first connecting end of the connecting rod is provided with a hook, and the end of the transmission sleeve is provided with a slot, and the hook cooperates with the slot to detachably hinge the connecting rod and the transmission sleeve.

[0012] In one embodiment, a plurality of connecting rods of different lengths are hinged at intervals on the end of the transmission sleeve, the plurality of connecting rods are hinged to a plurality of thermocouples respectively, and the plurality of thermocouples are hinged to the ends of the transmission rod respectively.

[0013] In one embodiment, a first driving member is further included, and the driving member is connected to the transmission assembly to drive the transmission sleeve to move along the first direction relative to the sealing seat through the transmission assembly.

[0014] In one embodiment, a second driving member is further included, wherein the second driving member is connected to the transmission rod to drive the transmission rod to move relative to the transmission sleeve along the first direction.

[0015] Based on the above, compared with the prior art, the adjustable-distance multi-point temperature measuring device provided by the utility model can effectively realize single temperature detection of different areas through the movable design of the transmission sleeve and the transmission rod. It has a simple structure, is easy to operate, and has good application prospects.

[0016] Other features and beneficial effects of the utility model will be described in the subsequent description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other beneficial effects of the utility model can be achieved and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The positional relationships described in the drawings in the following description are based on the directions of the components shown in the diagrams unless otherwise specified.

[0018] Figure 1 A main cross-sectional view of an adjustable-distance multi-point temperature measuring device provided in one embodiment of the utility model;

[0019] Figure 2 A cross-sectional view of a transmission sleeve provided in one embodiment of the utility model;

[0020] Figure 3 This is a front view of a transmission assembly provided in one embodiment of the utility model.

[0021] Reference numerals:

[0022] 10 sealing seat 20 transmission sleeve 30 transmission assembly

[0023] 40 transmission rod 50 connecting rod 60 thermocouple

[0024] 11 cavity 12 connection hole 13 avoidance hole

[0025] 21 rack guide 31 shaft 32 gear

[0026] 71 first sealing component 72 second sealing component 14 joint hole

[0027] 80 aviation connector 15 installation slots 22 card slots DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; the technical features designed in different implementation modes of the utility model described below can be combined with each other as long as they do not conflict with each other; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that all terms (including technical terms and scientific terms) used in the present invention have the same meanings as those generally understood by ordinary technicians in the field to which the present invention belongs, and cannot be understood as limitations on the present invention; it is further understood that the terms used in the present invention should be understood to have meanings consistent with the meanings of these terms in the context of this specification and in the relevant fields, and should not be understood in an idealized or overly formal sense, unless explicitly defined in this utility model.

[0030] See also Figure 1The utility model provides an adjustable-distance multi-point temperature measuring device, which at least includes a sealing seat 10, a transmission sleeve 20, a transmission assembly 30, a transmission rod 40, a connecting rod 50 and a thermocouple 60.

[0031] The central axis of the transmission sleeve 20 passes through the sealing seat 10 along the first direction and is connected to the transmission assembly 30. The transmission assembly 30 is used to drive the transmission sleeve 20 to move along the first direction relative to the sealing seat 10; the transmission rod 40 is inserted into the transmission sleeve 20 and can move along the first direction relative to the transmission sleeve 20.

[0032] by Figure 1 As shown, the first direction refers to the vertical direction. The central axis of the transmission sleeve 20 is arranged along the first direction. The transmission sleeve 20 is a cylindrical structure with a transmission rod 40 accommodated therein, and its specific size can be designed according to actual needs.

[0033] The transmission assembly 30 includes, but is not limited to, conventional structures and deformed structures such as a screw nut assembly, a gear rack structure, a guide rail slider assembly, and a crank slider mechanism that can drive the transmission sleeve 20 to perform reciprocating linear motion, which are not limited here. Preferably, the adjustable-distance multi-point temperature measuring device also includes a first driving member (not shown in the figure), which is connected to the transmission assembly 30 to cooperate in realizing reciprocating linear motion along the first direction, wherein the first driving member can be an automatic driving element such as an electric motor, a motor, a cylinder, or a manual driving element such as a wheel, a knob, etc., and can be reasonably set according to actual needs.

[0034] The transmission rod 40 is arranged in the transmission sleeve 20, wherein the length of the transmission rod 40 should be greater than the length of the transmission sleeve 20, so that the transmission rod 40 can be extended and retracted relative to the transmission sleeve 20. Preferably, the adjustable-distance multi-point temperature measuring device also includes a second driving member (not shown in the figure), which is connected to the transmission rod 40 to drive the transmission rod 40 to move reciprocatingly linearly along the first direction relative to the transmission sleeve 20. Similarly, the second driving member can be an automatic driving element such as an electric motor, a motor, a cylinder, or a manual driving element such as a wheel or a knob. Furthermore, the transmission rod 40 can also be connected to the second driving member through a transmission member such as a screw nut assembly, a cam structure, a crank-connecting rod mechanism, etc., so as to assist the movement of the transmission rod 40 in the transmission sleeve 20, and it can be reasonably set according to actual needs.

[0035] The connecting rod 50 has a first connecting end and a second connecting end opposite to each other. The first connecting end of the connecting rod 50 is hinged to the end of the transmission sleeve 20, and the second connecting end of the connecting rod 50 is hinged to the thermocouple 60. The thermocouple 60 is also hinged to the end of the transmission rod 40 near the second connecting end of the connecting rod 50. The hinged connection can be a detachable hinge or a non-detachable hinge. The detachable hinge is, for example, a hinge structure of a screw or a pin matching hole, and the non-detachable hinge is, for example, a universal ball, a non-detachable snap-on structure, etc. The specific design can be reasonable according to actual needs and is not limited here. As an example, the first connecting end of the connecting rod 50 is provided with a hook (not shown in the figure), and the end of the transmission sleeve 20 is provided with a slot 22. The hook cooperates with the slot 22 to detachably hinge the connecting rod 50 and the transmission sleeve 20.

[0036] The thermocouple 60 is arranged at the end of the transmission rod 40, so that when the transmission sleeve 20 moves in the first direction, the transmission rod 40 and the thermocouple 60 are also driven to move in the first direction, thereby realizing temperature detection of different depth areas. In addition, the thermocouple 60 is hinged to the connecting rod 50 and the transmission rod 40 respectively, so that when the transmission rod 40 moves in the first direction relative to the transmission sleeve 20, the thermocouple 60 can be driven to deviate from the axis, thereby enabling the thermocouple 60 to be effectively close to the temperature measurement position, thereby improving the detection accuracy of the temperature measurement position.

[0037] The adjustable-distance multi-point temperature measuring device provided in this embodiment drives the transmission sleeve 20 to move along the first direction through the transmission assembly 30 to adjust the temperature measuring area of ​​the thermocouple 60, and drives the thermocouple 60 to effectively detect specific different positions in the temperature measuring area through the movement of the transmission rod 40 in the transmission sleeve 20. It has a simple structure and is easy to operate. It can realize full-area temperature detection in a tubular heating reactor under a vacuum environment and has good application prospects.

[0038] In an alternative embodiment, see Figure 1 , Figure 2 , Figure 3 The sealing seat 10 has a cavity 11 and a connecting hole 12 formed inside thereof, which pass through the sealing seat 10 in a first direction and are connected to each other. A avoidance hole 13 is formed on the surface of the sealing seat 10, and the avoidance hole 13 is connected to the cavity 11; the transmission sleeve 20 passes through the connecting hole 12 and the cavity 11, and a rack guide 21 is formed on the outer surface of the transmission sleeve 20 located in the cavity 11 along the first direction; the transmission assembly 30 includes a rotating shaft 31 and a gear 32 located at one end of the rotating shaft 31, the rotating shaft 31 passes through the avoidance hole 13 and extends the gear 32 at the end of the rotating shaft 31 into the cavity 11, and the gear 32 is meshed with the rack guide 21.

[0039] The cavity 11 of the sealing seat 10 is used to accommodate the transmission sleeve 20 and the rack guide 21, and its cross-sectional size should be larger than the size of the connecting hole 12. The connecting hole 12 is used to limit the horizontal displacement of the transmission sleeve 20 relative to the sealing seat 10, so that the transmission sleeve 20 can only move axially along the first direction. Preferably, a first sealing component 71 is provided at the connecting hole 12, so that the cavity 11 maintains sealing when the adjustable distance multi-point temperature measuring device is measuring temperature. Among them, the rack guide 21 can be directly formed on the outer surface of the transmission sleeve 20, or it can be an independent strip structure fixed on the outer surface of the transmission sleeve 20.

[0040] See also Figure 1 , Figure 3 , the shaft 31 passes through the avoidance hole 13 and the gear 32 at the end of the shaft 31 extends into the cavity 11, wherein the cross-sectional size of the avoidance hole 13 should be larger than the size of the gear 32, so that during assembly, the gear 32 can extend from the avoidance hole 13 into the cavity 11 and mesh with the rack guide 21. Preferably, a second sealing component 72 is provided at the avoidance hole 13 to maintain sealing in the cavity 11. The first sealing component 71 and the second sealing component 72 can be conventional dynamic sealing structures such as sealing rings, sealing gaskets and sealing grooves, which are not limited here.

[0041] Among them, the rotating shaft 31 can be an optical axis or a screw. When the rotating shaft 31 is an optical axis, the rotation of the optical axis is achieved by cooperating with the corresponding first driving member; when the rotating shaft 31 is a screw, the rotation of the screw is achieved by cooperating with the threaded connection component and the first driving member.

[0042] It should be noted that, in this embodiment, the moving distance of the transmission sleeve 20 depends on the number of teeth of the gear 32 and the number of teeth of the rack guide 21. Therefore, the specific number of teeth of the gear 32 and the rack guide 21 can be reasonably designed according to actual needs and is not limited here.

[0043] In summary, if Figure 1 As shown, the working principle of the adjustable distance multi-point measuring device provided by the embodiment of the present invention is that the rotating shaft 31 drives the gear 32 and the rack guide 21 to engage, so that the transmission sleeve 20 is raised and lowered to adjust the temperature measurement area of ​​the thermocouple 60. When the thermocouple 60 reaches the preset temperature measurement area, the transmission rod 40 is lifted, so that the thermocouple 60 on the connecting rod 50 forms an angle difference with the transmission rod 40, thereby causing the thermocouple 60 to deviate from the axis, so that the thermocouple 60 is in close contact with the specific temperature measurement position, and temperature detection can be performed. After the temperature detection, the transmission rod 40 is pressed, and the connecting rod 50 brings the thermocouple 60 back to the area close to the axis of the transmission rod 40. At this time, the rotating shaft 31 can be readjusted to drive the transmission sleeve 20 to adjust the temperature measurement area for the next step of temperature detection.

[0044] In a preferred embodiment, the outer surface of the sealing seat 10 is further provided with a joint hole 14 connected to the cavity 11, and an aviation joint 80 is fixed to the joint hole 14, and the wiring of the thermocouple 60 is led out from the cavity 11 through the aviation joint 80. The joint hole 14 is sealed and connected to the aviation joint 80. The design of the aviation joint 80 and the joint hole 14 can facilitate the lead-out of the thermocouple 60 line, and at the same time, the sealing inside the cavity 11 can be ensured, ensuring that the internal environment is not affected.

[0045] Furthermore, a plurality of mounting grooves 15 are provided on the outer wall of the sealing seat 10 at intervals; the mounting grooves 15 are used to fix the adjustable multi-point temperature measuring device. Specifically, the adjustable multi-point temperature measuring device can be fixed on the temperature-measured container through the mounting grooves 15 of the sealing seat 10 and the fasteners, wherein the cavity is connected to the interior of the temperature-measured container, and the thermocouple 60 on the transmission rod 40 extends into the temperature-measured container, so as to realize the full-area temperature detection in the temperature-measured container. Preferably, a sealing component can also be designed at the mounting grooves 15.

[0046] Taking the vacuum tube heating reactor as an example, the adjustable multi-point temperature measuring device provided by the embodiment of the present invention can effectively calibrate the temperature of the reactor, especially under the premise of ensuring vacuum, the temperature of the entire area of ​​the reactor can be obtained in a single loading, which effectively solves the problem of inaccurate temperature calibration and cumbersome steps in the existing vacuum tube heating reactor, and further improves the temperature calibration efficiency and accuracy. Of course, the adjustable multi-point temperature measuring device provided by the embodiment of the present invention can also be used in other containers to be measured.

[0047] In a preferred embodiment, the end of the transmission sleeve 20 is hinged with multiple connecting rods 50 of different lengths at intervals, and the multiple connecting rods 50 are respectively hinged with multiple thermocouples 60, and the multiple thermocouples 60 are respectively hinged with the end of the transmission rod 40. By setting multiple groups of connecting rods 50 of different lengths, temperature detection at multiple points in the same temperature measurement area can be achieved, further improving the practicality of the device. Among them, the number and length ratio of the connecting rods 50 can be reasonably selected according to actual needs.

[0048] To sum up, compared with the prior art, the adjustable-distance multi-point temperature measuring device provided by the utility model can effectively realize single-time temperature detection of different areas through the movable design of the transmission sleeve, transmission rod, connecting rod and thermocouple, making the temperature detection more stable and accurate. It has a simple structure, easy operation, good sealing, and has good application prospects.

[0049] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the utility model can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim.

[0050] Although the terms such as sealing seat, transmission sleeve, transmission assembly, transmission rod, connecting rod, thermocouple, cavity, connecting hole, avoidance hole, rack guide, rotating shaft, gear, first sealing assembly, second sealing assembly, joint hole, aviation joint, installation slot, card slot, etc. are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model; the terms "first", "second", etc. (if any) in the description and claims of the embodiments of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An adjustable distance multi-point temperature measuring device, characterized in that: include: A sealing seat, a transmission sleeve, a transmission assembly, a transmission rod, a connecting rod and a thermocouple; The central axis of the transmission sleeve passes through the sealing seat along a first direction and is connected to the transmission assembly, and the transmission assembly is used to drive the transmission sleeve to move relative to the sealing seat along the first direction; the transmission rod is arranged in the transmission sleeve and can move relative to the transmission sleeve along the first direction; The connecting rod has a first connecting end and a second connecting end opposite to each other. The first connecting end of the connecting rod is hinged to the end of the transmission sleeve, and the second connecting end of the connecting rod is hinged to the thermocouple. The thermocouple is also hinged to the end of the transmission rod near the second connecting end of the connecting rod.

2. The adjustable distance multi-point temperature measuring device according to claim 1 is characterized in that: A cavity and a connecting hole are formed inside the sealing seat and penetrate the sealing seat in a first direction and are connected to each other. A avoidance hole is formed on the surface of the sealing seat, and the avoidance hole is connected to the cavity. The transmission sleeve passes through the connecting hole and the cavity, and a rack guide is formed on the outer surface of the transmission sleeve located in the cavity along a first direction; The transmission assembly includes a rotating shaft and a gear located at one end of the rotating shaft. The rotating shaft passes through the avoidance hole and extends the gear at the end of the rotating shaft into the cavity. The gear is meshed with the rack guide rail.

3. The adjustable distance multi-point temperature measuring device according to claim 2 is characterized in that: A first sealing component is arranged at the connecting hole.

4. The adjustable distance multi-point temperature measuring device according to claim 2 is characterized in that: A second sealing component is arranged at the avoidance hole.

5. The adjustable distance multi-point temperature measuring device according to claim 2 is characterized in that: The outer surface of the sealing seat is also provided with a joint hole connected to the cavity, an aviation joint is fixed on the joint hole, and the wiring of the thermocouple is led out from the cavity through the aviation joint.

6. The adjustable distance multi-point temperature measuring device according to claim 1, characterized in that: A plurality of installation grooves are arranged at intervals on the outer side wall of the sealing seat; the installation grooves are used to fix the adjustable-distance multi-point temperature measuring device.

7. The adjustable distance multi-point temperature measuring device according to claim 1 is characterized in that: The first connecting end of the connecting rod is provided with a hook, and the end of the transmission sleeve is provided with a slot, and the hook cooperates with the slot to detachably hinge the connecting rod and the transmission sleeve.

8. The adjustable distance multi-point temperature measuring device according to claim 1 is characterized in that: The end of the transmission sleeve is hinged with a plurality of connecting rods of different lengths at intervals, the plurality of connecting rods are hinged with a plurality of thermocouples respectively, and the plurality of thermocouples are hinged with the end of the transmission rod respectively.

9. The adjustable distance multi-point temperature measuring device according to claim 1, characterized in that: It also includes a first driving member, which is connected to the transmission assembly to drive the transmission sleeve to move relative to the sealing seat along a first direction through the transmission assembly.

10. The adjustable distance multi-point temperature measuring device according to claim 1, characterized in that: It also includes a second driving member, which is connected to the transmission rod to drive the transmission rod to move relative to the transmission sleeve along the first direction.

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