CN218628672U

CN218628672U - Platinum resistance thermometer placement protection device

Info

Publication number: CN218628672U
Application number: CN202220909382.XU
Authority: CN
Inventors: 刘薇; 尹跃; 王耀; 董锐; 孔飞
Original assignee: National Institute of Metrology; Shandong Institute of Metrology
Current assignee: National Institute of Metrology; Shandong Institute of Metrology
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2023-03-14
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a platinum resistance thermometer placing and protecting device, which comprises a base and an installation disc which correspond up and down, wherein the base is connected with the installation disc through a connecting rod, a placing pipe for placing a platinum resistance thermometer is movably installed on the installation disc, the placing pipe is vertically arranged, a bottom supporting device is installed at the bottom of the placing pipe, the bottom supporting device is positioned above the base, and a vertically arranged spring II is installed between the bottom supporting device and the base; according to the scheme, the placing pipe is arranged, so that the direct contact between a human body and the platinum resistance thermometer is avoided, and the safety of operators is guaranteed; by arranging the shockproof buffer mechanism and the spring, the placing pipe can be effectively buffered and damped, the shock to the platinum resistance thermometer is reduced, and the platinum resistance thermometer is better protected; through setting up wire winding mechanism, arrange in order and accomodate platinum resistance thermometer's cable part, avoid the cable winding to tie and cause the influence to platinum resistance thermometer's use, further protect platinum resistance thermometer not receive the damage.

Description

Platinum resistance thermometer placing and protecting device

Technical Field

The utility model relates to an equipment technical field for the measurement calibration, concretely relates to protection device is placed to platinum resistance thermometer.

Background

As standard platinum resistance thermometers become more widely used, their calibration work becomes more important. However, the calibration of the standard platinum resistance thermometer is very complicated, the standard platinum resistance thermometer is cleaned and annealed in the early stage of the calibration, then a temperature plateau is reproduced by using a metal fixed point, and finally the standard platinum resistance thermometer is inserted into a metal fixed point furnace for calibration. The method comprises the steps of firstly measuring Rtp of a standard platinum resistance thermometer before measuring a metal fixed point, then detecting the resistance value of the platinum resistance thermometer on a metal fixed point temperature plateau, immediately retesting the Rtp after each measured metal fixed point, and calculating corresponding resistance ratio data of the metal fixed point according to the resistance value of the metal fixed point and the average value of the Rtp of the two times, wherein the commonly used metal fixed points comprise a zinc fixed point, a tin fixed point, an aluminum fixed point and the like; in the verification process, the standard platinum resistance thermometer needs to be alternately placed among different annealing furnaces, metal fixing points and water three-phase points, but most of the standard platinum resistance thermometers are quartz rod glass instruments, the price is high, the platinum resistance thermometers can be damaged carelessly, the standard platinum resistance thermometers need to be properly placed when the standard platinum resistance thermometers are used for inspection after being annealed, when the fixed point platinum resistance thermometers are switched to be cooled in the verification process and when unconventional situations need to be rechecked, and the damage of the standard platinum resistance thermometers is avoided.

However, at present platinum resistance thermometer when using, because there is not reasonable place, lead to the thermometer to place at will, cause the thermometer loss easily like this, reduced thermometer life, when the thermometer uses once more, very easily appear the condition that can't use to after resistance thermometer uses, often there is the waste heat on the surface, scald people easily and lead to resistance thermometer to receive when taking and placing and hinder, reduced resistance thermometer result of use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem among the prior art, provide a protection device is placed to platinum resistance thermometer.

The technical scheme of the utility model is that:

the utility model provides a protection device is placed to platinum resistance thermometer, includes base and the mounting disc that corresponds from top to bottom, be connected through the connecting rod between base and the mounting disc, its characterized in that, movable mounting has the pipe of placing that is used for placing platinum resistance thermometer on the mounting disc, place the vertical setting of pipe, and place the bottom of pipe and install the end device of holding in the palm, hold in the palm end device bit in the base top, and install the spring two of vertical setting between end device of holding in the palm and the base.

Preferably, the bottom supporting device comprises a supporting block and a sleeve, the supporting block is fixedly connected with the bottom of the placing pipe in a sleeved mode, and the sleeve is sleeved on the top of the second spring.

Preferably, a vertically arranged positioning screw is fixed on the top surface of the base, and the second spring is sleeved on the positioning screw; the height of the positioning screw rod is lower than that of the second spring, a tightening nut is installed on the positioning screw rod, and the bottom end of the second spring is in contact with the top surface of the tightening nut.

Preferably, the connecting rod is provided with a shockproof buffer mechanism, the shockproof buffer mechanism is positioned between the mounting disc and the bottom supporting device, and the placing pipe is arranged on the shockproof buffer mechanism in a penetrating manner.

Preferably, the shockproof buffer mechanism comprises a buffer plate which is horizontally arranged, a through hole for the placing pipe to pass through is formed in the buffer plate, the diameter of the through hole is larger than that of the placing pipe, and an installation block which is coaxial with the through hole is arranged in the through hole; the mounting block is sleeved on the placing pipe, and a plurality of horizontal springs I uniformly distributed in the circumference are arranged between the mounting block and the inner wall of the through hole.

Preferably, the mounting plate is provided with a placing hole for mounting the placing pipe, and the inner wall of the placing hole is provided with a cushion pad; the mounting disc is also provided with a winding mechanism for accommodating a platinum resistance thermometer cable, and the winding mechanism comprises a winding reel and a support plate; the position of the winding reel corresponds to that of the placing pipe, and the winding reel is installed on the support plate through a connecting shaft, and the support plate is fixed on the arc side wall of the installation plate.

The utility model has the advantages that:

the utility model provides a platinum resistance thermometer placing protection device, which avoids the direct contact between the human body and the platinum resistance thermometer by arranging the placing tube for placing the platinum resistance thermometer, and ensures the safety of the operating personnel; in addition, by arranging the shockproof buffer mechanism and the spring, the placing pipe can be effectively buffered and damped, the shock to the platinum resistance thermometer is reduced, and the platinum resistance thermometer is better protected; in addition, through setting up winding mechanism, arrange in order and accomodate platinum resistance thermometer's cable part, avoid the cable winding to tie up and cause the influence to platinum resistance thermometer's use, further protect platinum resistance thermometer not damaged.

Drawings

Fig. 1 is a schematic view of the overall structure of a platinum resistance thermometer placement protection device provided by the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

fig. 4 is a schematic top view of the shock absorbing buffer mechanism according to the present invention;

FIG. 5 is a schematic view of the platinum resistance thermometer placement protection device according to the present invention in a use state;

in the figure, 1, a base; 11. a connecting rod;

2. installing a disc; 21. placing holes; 22. a cushion pad;

3. placing a tube;

4. a winding mechanism; 41. a spool; 42. a support plate; 43. a connecting shaft;

5. a shock-proof buffer mechanism; 51. a buffer plate; 52. a through hole; 53. mounting blocks; 54. a first spring; 55. a gasket; 56 mounting holes;

6. a bottom supporting device; 61. a supporting block; 62. a sleeve;

7. a second spring;

8. positioning a screw rod;

9. and tightening the nut.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention to be solved clearer, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of, and do not limit, the invention.

It is to be understood that the terms "horizontal, vertical, top, bottom, over" and the like refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

As shown in fig. 1 to 4, the utility model provides a platinum resistance thermometer placing and protecting device, which comprises a base 1 and an installation disc 2, wherein the installation disc 2 is positioned above the base 1, the base 1 and the installation disc 2 are mutually corresponding up and down, the base 1 and the installation disc 2 are connected through a vertically arranged connecting rod 11, the bottom end of the connecting rod 11 is fixed on the top surface of the base 1, and the top end of the connecting rod 11 is fixedly arranged on the bottom surface of the installation disc 2 and is used for stably supporting the installation disc 2; in addition, a vertically arranged placing tube 3 is arranged on the mounting disc 2, the placing tube 3 is arranged on the mounting disc 2 in a penetrating mode and can vertically move up and down on the mounting disc 2, the detection end portion of the platinum resistance thermometer is stored in the placing tube 3, and the handle of the platinum resistance thermometer is lapped at the port of the placing tube 3; in addition, install the support device 6 in the bottom of placing pipe 3, the support device 6 is located the top of base 1, and the spring two 7 of the vertical setting of installation between support device 6 and base 1, play the cushioning effect to support device 6 through spring two 7, and then play the cushioning effect to placing pipe 3, put into when platinum resistance thermometer and place back in the pipe 3, through the cushioning effect of spring two 7, alleviate platinum resistance thermometer and the striking dynamics of placing pipe 3, avoid platinum resistance thermometer impaired.

It should be noted that, as shown in fig. 3, in a specific embodiment, the bottom supporting device 6 includes a supporting block 61 and a sleeve 62 which are fixedly connected up and down, wherein a groove for clamping and installing the placing tube 3 is formed on the supporting block 61, the bottom of the placing tube 3 is installed in the groove, the sleeve 62 is vertically arranged and located below the supporting block 61, and an open end of the sleeve is arranged downward; in addition, the sleeve 62 is sleeved on the upper half part of the second spring 7, the top end of the second spring 7 is fixed on the inner top surface of the sleeve 62, the sleeve 62 is sleeved on the second spring 7, the position of the second spring 7 is limited, the second spring 7 can be compressed and stored in the sleeve 62, the moving direction of the second spring 7 is limited, and the phenomenon that the second spring 7 is bent reversely when being pressed is avoided.

Further, as shown in fig. 3, in a specific embodiment, a vertically arranged positioning screw 8 is fixed on the top surface of the base 1, the positioning screw 8 is located right below the placing tube 3, and the second spring 7 is sleeved on the positioning screw 8; in addition, the height of the positioning screw rod 8 is lower than that of the second spring 7, and the top end face of the positioning rod 8 is located in the middle of the second spring 7; in addition, install the tightening nut 9 that the rotation set up on locating lever 8, the bottom of spring two 7 contacts with tightening nut 9's top surface, through rotating tightening nut 9, makes it move on positioning screw 8, and then drives reciprocating of spring two 7, realizes holding in the palm end device 6 and placing the position adjustment of pipe 3, changes the initial position who holds in the palm end device 6 and place pipe 3, satisfies the placing and the protection of different requirements platinum resistance thermometers.

It should be explained that, as shown in fig. 1 and fig. 3, in the specific embodiment, the connecting rod 11 is installed with the shockproof buffer mechanism 5, the shockproof buffer mechanism 5 is located between the mounting plate 2 and the bottom supporting device 6, and the placing tube 3 is installed on the shockproof buffer mechanism 5 in a penetrating manner, the shockproof buffer mechanism 5 is located at the middle position of the placing tube 3, and plays a role of shock absorption and buffering for the placing tube 3, so as to reduce the impact force of the upward movement of the placing tube 3 in the horizontal direction, and ensure that the platinum resistance thermometer in the placing tube 3 is not damaged.

Further, as shown in fig. 3 and 4, in a specific embodiment, the shockproof buffer mechanism 5 includes a buffer plate 51 horizontally disposed, a mounting hole 56 adapted to the connecting rod 11 is formed on the buffer plate 51, and the buffer plate 51 is fixedly mounted on the connecting rod 11 through the mounting hole 56; in addition, a through hole 52 for the placing pipe 3 to pass through is formed in the buffer plate 51, the diameter of the through hole 52 is larger than that of the placing pipe 3, an installation block 53 coaxial with the through hole 52 is arranged in the through hole 52, the installation block 53 is sleeved on the outer wall of the placing pipe 3 in a matching mode, and a gasket 55 is arranged between the installation block 53 and the placing pipe 3 and used for reducing the impact extrusion degree between the installation block 53 and the placing pipe 3; in addition, install a plurality of level setting and about the spring 54 of through-hole 52 circumference equipartition between installation piece 53 outer wall and through-hole 52 inner wall, through setting up spring 54, play the cushioning effect to installation piece 53, slow down the range of rocking of installation piece 53 to avoid it to touch mutually with buffer board 51, and then realize slowing down the range of rocking of placing pipe 3, avoid placing pipe 3 because of the too big platinum resistance thermometer that leads to its inside of range of rocking and place pipe 3 inner wall and take place the striking damage.

Furthermore, as shown in fig. 1 and fig. 2, in the specific embodiment, the mounting plate 2 is provided with a placing hole 21 for mounting the placing tube 3, the shape and structure of the placing hole 21 and the shape and structure of the top end of the placing tube 3 are funnel-shaped and are adapted to be mounted, the placing tube 3 is prevented from falling from the mounting plate 2 by mutual overlapping and supporting between the adapted funnel-shaped structures, and the placing hole 21 is provided with a cushion pad 22 for reducing the impact force between the placing tube 3 and the placing hole 21; in addition, a winding mechanism 4 is further arranged on the mounting disc 2, and the winding mechanism 4 is used for accommodating a cable of the platinum resistance thermometer, so that the winding knotting is avoided; the winding mechanism 4 comprises a winding reel 41 and a support plate 42, the winding reel 41 is horizontally arranged, is positioned on one side of the installation turntable 2 and corresponds to the position of the placing pipe 3, the winding reel 41 is installed on the support plate 42 through a connecting shaft 43 and is used for winding and containing a cable part of the platinum resistance thermometer, and an operator manually winds the cable part of the platinum resistance thermometer on the winding reel 41; the stay 42 is fixedly welded to the arc-shaped side wall of the installation plate 2, and fixes the position of the spool 41.

The foregoing description of the specific embodiments of the present invention has been presented for the purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and it is apparent that numerous changes and modifications may be made in the foregoing description, the examples having been selected and described to illustrate the specific principles and practical application of the invention, to thereby enable one skilled in the art to make and use the invention in various embodiments and with various modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a protection device is placed to platinum resistance thermometer, includes base (1) and mounting disc (2) that correspond from top to bottom, be connected through connecting rod (11) between base (1) and mounting disc (2), its characterized in that, movable mounting has pipe (3) of placing that are used for placing platinum resistance thermometer sense terminal on mounting disc (2), place the vertical setting of pipe (3), and place the bottom of pipe (3) and install end device (6), end device (6) are located base (1) top, and install the spring two (7) of vertical setting between end device (6) and base (1).

2. The platinum resistance thermometer placement protection device according to claim 1, characterized in that the pedestal device (6) comprises a support block (61) and a sleeve (62) which are fixedly connected, the support block (61) is sleeved on the bottom of the placement tube (3), and the sleeve (62) is sleeved on the top of the second spring (7).

3. The platinum resistance thermometer placement protection device as claimed in claim 1, wherein a vertically arranged positioning screw (8) is fixed on the top surface of the base (1), and the second spring (7) is sleeved on the positioning screw (8); the height of the positioning screw rod (8) is lower than that of the second spring (7), a tightening nut (9) is installed on the positioning screw rod (8), and the bottom end of the second spring (7) is in contact with the top surface of the tightening nut (9).

4. The platinum resistance thermometer placing and protecting device as claimed in claim 1, wherein the connecting rod (11) is provided with an anti-vibration buffer mechanism (5), the anti-vibration buffer mechanism (5) is positioned between the mounting plate (2) and the bottom bracket device (6), and the placing tube (3) is penetratingly arranged on the anti-vibration buffer mechanism (5).

5. The platinum resistance thermometer placement protection device as claimed in claim 4, wherein the shockproof buffer mechanism (5) comprises a horizontally arranged buffer plate (51), a through hole (52) for the placement tube (3) to pass through is formed in the buffer plate (51), the diameter of the through hole (52) is larger than that of the placement tube (3), and a mounting block (53) coaxial with the through hole (52) is arranged in the through hole (52); the mounting block (53) is sleeved on the placing pipe (3), and a plurality of first springs (54) which are horizontally and circumferentially and uniformly distributed are arranged between the mounting block (53) and the inner wall of the through hole (52).

6. The platinum resistance thermometer placement protection device as claimed in claim 1, wherein the mounting plate (2) is provided with a placement hole (21) for mounting the placement tube (3), and a buffer pad (22) is mounted on the inner wall of the placement hole (21); the mounting disc (2) is further provided with a winding mechanism (4) for accommodating a platinum resistance thermometer cable, and the winding mechanism (4) comprises a winding reel (41) and a support plate (42); the position of the winding reel (41) corresponds to that of the placing pipe (3), the winding reel is installed on the support plate (42) through a connecting shaft (43), and the support plate (42) is fixed on the arc side wall of the installation disc (2).