Reference end thermostat device

Abstract

The utility model relates to the technical field of connecting devices, in particular to a reference end thermostat device which comprises a heat preservation barrel, a lifting platform, a base and a lifting support. Wherein the heat preservation barrel is installed on the lifting platform and used for containing materials to be subjected to heat preservation, the base is located below the lifting platform, the upper end of the lifting support is connected to the lifting platform, the lower end of the lifting support is connected to the base, and the lifting support is configured to be used for adjusting the distance between the lifting platform and the base. Wherein the heat preservation barrel is mounted on a lifting platform with a lifting support and can move up and down along with the lifting support. The device is small in occupied space, can better meet the actual working requirements, and can flexibly adjust the height of the heat preservation barrel according to the position and length of a material to be subjected to heat preservation when the material to be subjected to heat preservation is verified or calibrated, so that the verification or calibration process of the material to be subjected to heat preservation is more convenient and quicker.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouple calibration, in particular to a reference end thermostat device. Background Art

[0002] When the thermocouple is verified or calibrated, the reference end needs to be placed in a 0℃ environment to make the measured thermoelectric potential more accurate. Due to the length of the standard thermocouple and the calibrated thermocouple, the reference end thermostat needs to be as close to the thermocouple reference end as possible, and ensure that the depth of the thermocouple reference end inserted into the reference end thermostat is not less than 150mm. There are two main types of reference end thermostats currently used on the market. One is the traditional reference end thermostat in a vacuum insulation barrel that stores an ice-water mixture, and the other is a semiconductor refrigeration zero-point thermostat that meets the requirements of the regulations. The height of these two reference end thermostats generally does not exceed 300mm. When in use, if the thermocouple is short and cannot be inserted into the bottom of the reference end thermostat, the reference end thermostat needs to be raised to achieve the purpose of inserting the thermocouple into the bottom of the reference end thermostat. In addition, the two reference end thermostats are large in size and inconvenient to adjust the height. The number of holes in the semiconductor refrigeration zero-point thermostat is at most 8 holes. Due to the limitation of the number of holes, the number of thermocouples that can be calibrated each time is small, and the calibration efficiency is low. In summary, the two existing reference end thermostats cannot meet the actual working requirements well. Utility Model Content

[0003] The utility model provides a reference end thermostat device, which can solve at least one of the above technical problems.

[0004] In order to solve the above problems, the utility model provides a reference end thermostat device, comprising:

[0005] The insulation barrel is used to contain the material to be insulated;

[0006] A lifting platform, on which the insulation barrel is installed;

[0007] a base, located below the lifting platform; and

[0008] A lifting bracket, the upper end of which is connected to the lifting platform, and the lower end of which is connected to the base, and the lifting bracket is configured to adjust the distance between the lifting platform and the base.

[0009] Optionally, the lifting bracket includes an active arm and a passive arm, and the middle portion of the active arm is pivotally connected to the middle portion of the passive arm;

[0010] The bottom end of the active arm is pivotally connected to the base, and the top end is pivotally connected to a slider, and the slider is slidably connected to the lifting platform;

[0011] The bottom end of the passive arm is slidably connected to the base, and the top end is pivotally connected to the lifting platform;

[0012] The active arm is connected with a driving assembly, and the driving assembly is used to drive the active arm to swing relative to the passive arm.

[0013] Optionally, a lower fixed support and a slide are fixedly provided on the upper end surface of the base, the lower fixed support is pivotally connected to the bottom end of the active arm, the slide has a slide groove, and the bottom end of the passive arm is slidably connected to the slide groove;

[0014] The lower end surface of the lifting platform is fixed with an upper fixed support and a sliding block slidably connected, the upper fixed support is pivotally connected to the upper end of the passive arm, the sliding block is pivotally connected to the upper end of the active arm, and a guide limiting structure is provided between the sliding block and the lifting platform, and the guide limiting structure is configured to only allow the sliding block to move in a straight line but not to rotate;

[0015] The sliding block has a threaded hole, the threaded hole is matched with a threaded connection with a screw rod, and the screw rod is pivotally connected to the lifting platform.

[0016] Optionally, the guide limiting structure comprises a guide groove provided on the lower end surface of the lifting platform, the cross section of the guide groove is a non-circular surface, and the sliding block is slidably connected to the guide groove;

[0017] Alternatively, the guide and limiting structure includes a guide rail fixedly arranged on the lower end surface of the lifting platform, the sliding block is provided with a guide groove, and the guide rail is slidably connected to the guide groove.

[0018] Optionally, a knob is fixedly provided at the operating end of the screw rod, and the knob is provided with a fixed limiting structure, and the fixed limiting structure is configured to prevent the screw rod from rotating.

[0019] Optionally, the fixed limiting structure is a fastener.

[0020] Optionally, the active arms have two, which are parallel, spaced and fixedly connected;

[0021] The passive arms are provided with two arms, which are parallel, spaced and fixedly connected.

[0022] Optionally, it is characterized in that the outer wall of the insulation barrel is provided with an insulation layer.

[0023] Optionally, the material of the heat-insulating layer is a heat-insulating surface; and the barrel opening of the heat-insulating barrel is matched with a cover provided with a heat-insulating cover.

[0024] Optionally, it is characterized in that the heat-insulating cover is a silicone heat-insulating cover;

[0025] And / or, the heat-insulating cover is provided with a through hole for the glass tube to pass through;

[0026] And / or, a drain valve is provided at the bottom of the heat preservation barrel.

[0027] The reference end thermostat device provided by the utility model has the following beneficial effects:

[0028] In the reference end thermostat device provided by the embodiment of the utility model, the insulation barrel is installed on a lifting platform with a lifting bracket and can move up and down with the lifting bracket. The device occupies a small space and can better meet the actual work needs. When verifying or calibrating the material to be insulated, the height of the insulation barrel can be flexibly adjusted according to the position and length of the material to be insulated, making the verification or calibration process of the material to be insulated more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the structure of a reference end thermostat device provided by an embodiment of the utility model;

[0031] Figure 2 for Figure 1 A partial enlarged view of the

[0032] Figure 3 A schematic structural diagram of a heat preservation barrel of a reference end thermostat device provided in an embodiment of the utility model.

[0033] Description of reference numerals: 100 - insulation barrel; 200 - lifting platform; 300 - base; 400 - lifting bracket

[0034] 201-slider; 202-upper fixed support; 203-screw; 204-guide groove; 205-guide rail; 301-lower fixed support; 302-slider; 303-slide groove; 401-active arm; 402-passive arm;

[0035] 1-knob; 2-fastener; 3-insulation layer; 4-insulation cover; 5-through hole; 6-drain valve. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0038] An embodiment of the utility model provides a reference end thermostat device, which includes: an insulation barrel 100, a lifting platform 200, a base 300 and a lifting bracket 400; wherein the insulation barrel 100 is installed above the lifting platform 200 to accommodate the material to be insulated, the base 300 is located below the lifting platform 200, the upper end of the lifting bracket 400 is connected to the lifting platform 200, and the lower end is connected to the base 300, and the lifting bracket 400 is configured to adjust the distance between the lifting platform 200 and the base 300.

[0039] like Figure 1 As shown, in the device, the insulation barrel 100 is installed on a lifting platform 200 with a lifting bracket 400, and can move up and down with the lifting bracket 400. Compared with the prior art, the device occupies a small space and has a certain flexibility. The height of the insulation barrel 100 can be flexibly adjusted according to the length of the material to be insulated and the position of the material to be inspected or calibrated to ensure that the material to be insulated can be inserted into the bottom of the insulation barrel 100, and the insertion depth is not less than 150mm, thereby making the inspection or calibration result of the material to be insulated more accurate. In the process of inspecting or calibrating the material to be insulated, there is no need to add additional objects for padding or adding brackets for height adjustment. The device can meet the inspection or calibration experiments of materials to be insulated of different lengths, as well as the inspection or calibration requirements of materials to be insulated of different standards or industrial grades, making the inspection or calibration process of the material to be insulated convenient and quick.

[0040] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the lifting bracket 400 includes an active arm 401 and a passive arm 402, and the middle part of the active arm 401 is pivoted to the middle part of the passive arm 402; the bottom end of the active arm 401 is pivoted to the base 300, and the top end is pivoted to the slider 201, and the slider 201 is slidably connected to the lifting platform 200; the bottom end of the passive arm 402 is slidably connected to the base 300, and the top end is pivoted to the lifting platform 200; the active arm 401 is connected to a driving assembly, and the driving assembly is used to drive the active arm 401 to swing relative to the passive arm 402.

[0041] like Figure 1 and Figure 2As shown, the device drives the active arm 401 to swing relative to the passive arm 402 through the driving assembly to drive the lifting platform 200 to move up and down, and the lifting platform 200 drives the insulation barrel 100 to move up and down, wherein the slider 201 is used to connect the active arm 401 and the lifting platform 200. With such a configuration, the height of the insulation barrel 100 can be flexibly adjusted, and the material to be insulated can be conveniently and quickly verified or calibrated.

[0042] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the upper end surface of the base 300 is fixedly provided with a lower fixed support 301 and a slide 302, the lower fixed support 301 is pivoted to the bottom end of the active arm 401, the slide 302 has a slide groove 303, and the bottom end of the passive arm 402 is slidably connected to the slide groove 303; the lower end surface of the lifting platform 200 is fixedly provided with an upper fixed support 202 and a slide block 201 slidably connected, the upper fixed support 202 is pivoted to the upper end of the passive arm 402, the slide block 201 is pivoted to the upper end of the active arm 401, and a guide limit structure (not shown in the figure) is provided between the slide block 201 and the lifting platform 200, and the guide limit structure (not shown in the figure) is configured to: only allow the slide block 201 to move in a straight line, but not to rotate; the slide block 201 has a threaded hole, the threaded hole is matched with a screw rod 203 threadedly connected, and the screw rod 203 is pivoted to the lifting platform 200.

[0043] like Figure 1 and Figure 2 As shown, the device drives the slider 201 to slide by rotating the screw rod 203, so as to drive the active arm 401 to swing relative to the passive arm 402, and then drives the bottom end of the passive arm 402 to slide stably in the slide groove 303, so as to drive the lifting platform 200 to rise and fall. During the lifting and falling process of the lifting platform 200, the guide limit structure (not shown in the figure) ensures that the slider 201 only moves along a straight line and cannot rotate, thereby ensuring the stability of the lifting and falling of the lifting platform 200. Among them, the lower fixed support 301 is used to connect the active arm 401 and the base 300, and the upper fixed support 202 is used to connect the passive arm 402 and the lifting platform 200.

[0044] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the guide and limiting structure (not shown in the figure) includes a guide groove 204 provided on the lower end surface of the lifting platform 200, the cross-section of the guide groove 204 is a non-circular surface, and the slider 201 is slidably connected to the guide groove 204; or, the guide and limiting structure (not shown in the figure) includes a guide rail 205 (not shown in the figure) fixedly provided on the lower end surface of the lifting platform 200, the slider 201 is provided with a guide groove 204, and the guide rail 205 (not shown in the figure) is slidably connected to the guide groove 204.

[0045] like Figure 2 As shown, the slider 201 in the device can slide along the guide groove 204; or the slider 201 in the device can slide along the guide rail 205 (not shown in the figure) through the guide groove 204.

[0046] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the operating end of the screw rod 203 is fixedly provided with a knob 1, and the knob 1 is provided with a fixed limit structure, which is configured to prevent the screw rod 203 from rotating.

[0047] like Figure 2 As shown, the device drives the screw rod 203 to rotate by rotating the knob 1. When the state of the device is adjusted, the screw rod 203 is prevented from rotating by a fixed limiting structure, so that the device is locked in the current state.

[0048] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the fixed limiting structure is a fastener 2 .

[0049] like Figure 2 As shown, with such arrangement, the fastener 2 can effectively lock the screw rod 203 after the state adjustment of the device is completed.

[0050] Specifically, Figure 2 As shown, the reference end thermostat device provided by the embodiment of the utility model has two active arms 401 , which are fixedly connected in parallel and at intervals; and two passive arms 402 , which are fixedly connected in parallel and at intervals.

[0051] Such an arrangement can keep the lifting platform 200 stable during the lifting process.

[0052] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the outer wall of the insulation barrel 100 is provided with an insulation layer 3.

[0053] like Figure 3 As shown, the insulation layer 3 is used to provide a uniform temperature field that meets the requirements of the verification or calibration test procedures of the insulation material.

[0054] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the material of the heat preservation layer 3 is a heat insulating surface; the barrel opening matching cover of the heat preservation barrel 100 is provided with a heat preservation cover 4.

[0055] like Figure 3 As shown, the insulation cover 4 can enhance the insulation effect of the insulation barrel 100, making the test results of the inspection or calibration of the material to be insulated more accurate.

[0056] Specifically, in the reference end thermostat device provided by the embodiment of the utility model, the insulation cover 4 is a silicone insulation cover; the insulation cover 4 is provided with a through hole 5 for the glass tube to pass through; and a drain valve 6 is provided at the bottom of the insulation barrel 100.

[0057] like Figure 3 As shown, the through hole 5 is used for placing the material to be insulated, and the drain valve 6 is used for discharging the ice-water mixture after the verification or calibration experiment of the material to be insulated is completed.

[0058] In this embodiment, the insulation barrel of the device is in the shape of a cylinder, and an ice-water mixture is placed inside. The barrel mouth of the insulation barrel is matched with a silicone cover, and the silicone cover has multiple through holes with a diameter of 7 mm, so that a glass tube of corresponding size can be inserted into the insulation barrel. The glass tube is used to hold a thermocouple. A drain valve is provided at the bottom of the insulation barrel, and the drain valve is used to discharge the ice-water mixture. The outer wall interlayer of the insulation barrel is filled with thermal insulation cotton (thermal insulation layer) to ensure that the temperature field in the insulation barrel meets the requirements of the regulations, that is, the temperature field in the barrel is maintained at 0°C ± 0.05°C. Turn the adjustment knob to drive the screw rod to rotate. The screw rod has threads. When the screw rod rotates, it can drive the slide seat to slide horizontally at the bottom of the lifting platform. The upper part of the lifting bracket is respectively pivoted with the fixed connection seat of the lifting platform and the slide seat. The lower part of the lifting bracket is pivoted with the fixed connection seat of the base and the movable limit groove of the lifting bracket. When the slide seat slides, the lifting bracket drives the lifting platform to rise and fall, thereby driving the insulation barrel to rise and fall. The locking nut is used to lock the adjustment knob to ensure that the lifting table can stay at any height. Four universal wheels are installed on the base, two of which are universal wheels without locking mechanisms, and the other two are universal wheels with locking mechanisms. When using the reference end thermostat device, the device can be moved to the corresponding experimental position through the four universal wheels installed on the base, and the device can be kept stationary through the two universal wheels with locking mechanisms. The device can manually adjust the height of the insulation barrel according to the length of the cold end of the thermocouple bundle, thereby ensuring that the reference end of the thermocouple is inserted into the appropriate position in the insulation barrel.

[0059] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "installation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] 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 solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A reference end thermostat device, characterized in that: include: The insulation barrel is used to contain the material to be insulated; A lifting platform, on which the insulation barrel is installed; A base, located below the lifting platform; as well as, A lifting bracket, the upper end of which is connected to the lifting platform, and the lower end of which is connected to the base, and the lifting bracket is configured to adjust the distance between the lifting platform and the base.

2. The reference end thermostat device according to claim 1, characterized in that The lifting bracket comprises an active arm and a passive arm, and the middle part of the active arm is pivotally connected to the middle part of the passive arm; The bottom end of the active arm is pivotally connected to the base, and the top end is pivotally connected to a slider, and the slider is slidably connected to the lifting platform; The bottom end of the passive arm is slidably connected to the base, and the top end is pivotally connected to the lifting platform; The active arm is connected with a driving assembly, and the driving assembly is used to drive the active arm to swing relative to the passive arm.

3. The reference end thermostat device according to claim 2, characterized in that The upper end surface of the base is fixedly provided with a lower fixed support and a slide seat, the lower fixed support is pivotally connected to the bottom end of the active arm, the slide seat has a slide slot, and the bottom end of the passive arm is slidably connected to the slide slot; The lower end surface of the lifting platform is fixed with an upper fixed support and a sliding block slidably connected, the upper fixed support is pivotally connected to the upper end of the passive arm, the sliding block is pivotally connected to the upper end of the active arm, and a guide limiting structure is provided between the sliding block and the lifting platform, and the guide limiting structure is configured to only allow the sliding block to move in a straight line but not to rotate; The sliding block has a threaded hole, the threaded hole is matched with a threaded connection with a screw rod, and the screw rod is pivotally connected to the lifting platform.

4. The reference end thermostat device according to claim 3, characterized in that The guide limiting structure comprises a guide groove provided on the lower end surface of the lifting platform, the cross section of the guide groove is a non-circular surface, and the sliding block is slidably connected to the guide groove; Alternatively, the guide and limiting structure includes a guide rail fixedly arranged on the lower end surface of the lifting platform, the sliding block is provided with a guide groove, and the guide rail is slidably connected to the guide groove.

5. The reference end thermostat device according to claim 3, characterized in that A knob is fixedly disposed at the operating end of the screw rod, and the knob is provided with a fixed limiting structure, and the fixed limiting structure is configured to prevent the screw rod from rotating.

6. The reference end thermostat device according to claim 5, characterized in that The fixed limiting structure is a fastener.

7. The reference end thermostat device according to claim 2, characterized in that The active arms have two, which are parallel, spaced and fixedly connected; The passive arms are provided with two arms, which are parallel, spaced and fixedly connected.

8. The reference end thermostat device according to any one of claims 1 to 7, characterized in that: The outer side wall of the heat preservation barrel is provided with a heat preservation layer.

9. The reference end thermostat device according to claim 8, characterized in that The material of the heat-insulating layer is a heat-insulating surface; the barrel opening of the heat-insulating barrel is matched with a cover provided with a heat-insulating cover.

10. The reference end thermostat device according to claim 9, characterized in that The thermal insulation cover is a silicone thermal insulation cover; And / or, the heat-insulating cover is provided with a through hole for the glass tube to pass through; And / or, a drain valve is provided at the bottom of the heat preservation barrel.

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