Thermocouple thermometer

Abstract

The utility model relates to the thermometer field, and discloses a thermocouple thermometer comprising a thermometer body and a protective cover, the lower end of the thermometer body is rotatably sleeved with a sleeve, the outer side of the sleeve is movably sleeved with a connecting block, the upper end of the connecting block is rotatably sleeved with a pushing pipe, the outer side of the pushing pipe is sleeved with a fixing seat in a threaded manner, and the fixing seat is provided with a clamping groove. A protective pipe is in threaded connection with the lower end in the sleeve in a sleeving manner; an outer cover is hinged to the position, close to the upper end, of the front end face of the protective cover, a fixing mechanism is arranged at the position, close to the lower end, of the rear end face of the outer cover and comprises an inner rod, a limiting piece, an outer rod, a spring, a fixing block and a sliding block, and the upper end of the thermometer body is embedded into the protective cover. According to the utility model, the mirror surface of the thermometer body can be wrapped and protected, the damage to the mirror surface is reduced, the thermometer body can be moved upwards or lifted up after installation, the exposed length of the measuring end can be adjusted, and the thermometer is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of thermometers, in particular to a thermocouple thermometer. Background Art

[0002] A thermocouple thermometer is a temperature measuring instrument based on the thermoelectric effect. It consists of three parts: a thermocouple (temperature sensing element); a measuring instrument (a moving coil instrument or a potentiometer); and a wire (compensation wire) connecting the thermocouple and the measuring instrument. The thermal electrode is formed by welding two conductors of different materials. One end of the welding is inserted into the measured medium to sense the measured temperature, which is called the working end or the hot end of the thermocouple. The other end is connected to the wire, which is called the cold end or the free end. Two conductors of different compositions (called thermocouple wire materials or thermal electrodes) are joined at both ends to form a loop. When the temperatures of the joining points are different, an electromotive force will be generated in the loop. This phenomenon is called the thermoelectric effect, and this electromotive force is called the thermoelectromotive force.

[0003] The existing patent (Publication No.: CN215677325U) discloses "a thermocouple thermometer with anti-noise property, including a thermometer body. A fixing block is fixed at the bottom of the thermometer body; a first conductor is fixed at the bottom of the fixing block, a connecting block is fixed at the bottom of the first conductor, a second conductor is fixed at the bottom of the connecting block, and an insertion head is fixed at the bottom of the second conductor; a protective sleeve is fixed at the bottom of the fixing block, and a chute is opened at the bottom of the protective sleeve. A sliding piece is movably arranged inside the chute. In this thermocouple thermometer with anti-noise property, the sound absorption holes in the protective sleeve and the absorption holes in the sliding piece can reduce the influence of noise on the conductor, and the chute can absorb noise after the sliding piece slides out; the protective sleeve and the sliding piece made of superalloy have excellent heat resistance, so they will not affect the measurement accuracy of the conductor due to their own temperature during temperature measurement".

[0004] However, in this utility model, there is a problem that after the thermometer body is installed, due to the fixed installation position, when the liquid level of the solution to be measured decreases, it is necessary to loosen the base of the thermocouple thermometer again and install the thermocouple thermometer downward, resulting in relatively cumbersome operations. Therefore, the utility model provides a thermocouple thermometer to solve the problems raised in the above background art. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and a thermocouple thermometer is proposed. It can not only wrap and protect the mirror surface of the thermometer body, reduce the damage of the mirror surface, but also perform the upward or rising operation of the thermometer body and the adjustment operation of the exposed length of the measurement end after installation. Its structure is simple and it is convenient to use.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A thermocouple thermometer includes a thermometer body and a protective cover. A sleeve is rotatably sleeved at the lower end of the thermometer body. A connecting block is movably sleeved outside the sleeve. A push tube is rotatably sleeved at the upper end of the connecting block. A fixing seat is threadedly sleeved outside the push tube. A protective tube is threadedly sleeved at the lower end inside the sleeve.

[0008] An outer cover is hingedly arranged at the upper end of the front end face of the protective cover. A fixing mechanism is arranged at the lower end of the rear end face of the outer cover. The fixing mechanism includes an inner rod, a limiting member, an outer rod, a spring, a fixing block and a slider. The upper end of the thermometer body is embedded in the protective cover.

[0009] Through the above technical solution, the mirror surface on the thermometer body can be wrapped and protected, reducing dust adhesion while providing a protective effect. At the same time, the thermometer body can be telescoped as needed and the exposed area of the temperature measuring end at the lower end of the thermometer body can be adjusted for use.

[0010] Further, one end of the inner rod is fixedly sleeved in the limiting member. Second grooves and first grooves are respectively formed at the midpoints of one ends of the limiting member and the outer rod. A spring is fixedly arranged at the bottom end inside the first groove. Slide grooves are formed on both sides of the inner wall of the second groove. The two sliders are respectively slidably arranged in the two slide grooves.

[0011] Through the above technical solution, the inner rod cooperates with the spring to achieve a telescopic function. And since the fixing block is fixedly connected to the inner rod, the fixing block is driven to perform a telescopic movement.

[0012] Further, the two sliders are respectively fixedly arranged at the upper and lower ends of the inner rod and one end of the inner rod is fixedly connected to the spring. The fixing block is fixedly arranged on one side of the lower end face of the inner rod.

[0013] Through the above technical solution, the arrangement of the outer sliders can provide a certain auxiliary guiding and sliding effect.

[0014] Further, one end of the inner rod penetrates through one side of the outer cover. A clamping groove is formed on one side of the lower end of the front end face of the thermometer body and the fixing block is embedded in the clamping groove.

[0015] Through the above technical solution, the combination of the outer cover and the protective cover can be completed, so as to achieve the covering and wrapping effect on the surface of the thermometer body.

[0016] Further, clamping blocks are respectively fixedly arranged on both sides of the midpoint of the thermometer body. The two clamping blocks are rotatably embedded in the connecting block.

[0017] Through the above technical solution, while ensuring the rotatable effect of the connecting block, it is prevented from moving down and slipping.

[0018] Furthermore, movable blocks are fixedly arranged on both sides near the lower end of the thermometer body, and the two movable blocks are respectively movably clamped and arranged on both sides inside the protective tube;

[0019] Through the above technical solution, the rotation of the protective tube is restricted, enabling it to perform displacement operations in the up and down directions.

[0020] Furthermore, a limiting ring is fixedly sleeved on the outer side of the lower end of the thermometer body, and the sleeve is rotatably sleeved on the outer side of the limiting ring;

[0021] Through the above technical solution, it is ensured that the outer sleeve is always wrapped around the lower end of the thermometer body and can achieve the rotation function.

[0022] The utility model has the following beneficial effects:

[0023] 1. A thermocouple thermometer proposed by the utility model, through the combination of the protective cover, the outer cover and the fixing mechanism located at the rear end of the outer cover, not only realizes the flip-up structure of the outer cover, but also has the fixing effect after being combined with the protective cover. The body structure with a mirror on the upper end of the thermometer body is placed inside the protective cover, thereby achieving the protection effect on the thermometer body. The mirror is not easily damaged, and the dust attachment is reduced, and the service life is longer.

[0024] 2. A thermocouple thermometer proposed by the utility model, by sleeving the thermometer body with the connecting block, and the push tube arranged at the upper end of the connecting block is threadedly sleeved with the fixed seat. When the fixed seat completes the position fixation, the rotation of the push tube can be used to change its position in the fixed seat, thereby pushing the connecting block and the thermometer body embedded in the connecting block to move down and contract. At the same time, the protective tube located outside the thermometer body can be contracted as needed, thereby changing the exposed length of the lower measuring end. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the partial sectional structure of the utility model;

[0026] Figure 2 is of the utility model Figure 1 Schematic enlarged view of the structure at A;

[0027] Figure 3 is of the utility model Figure 1 Schematic enlarged view of the structure at B;

[0028] Figure 4 is a schematic sectional view of the structure of the fixing mechanism of the utility model;

[0029] Figure 5 is of the utility model Figure 4 Schematic enlarged view of the structure at C.

[0030] Legend Explanation:

[0031] 1. Fixing mechanism; 101. Inner rod; 102. Limiting part; 103. Outer rod; 104. Spring; 105. First groove; 106. Second groove; 107. Fixed block; 108. Slide block; 109. Slide groove; 2. Outer cover; 3. Protection cover; 4. Thermometer body; 5. Sleeve; 6. Push tube; 7. Fixed seat; 8. Connecting block; 9. Clamping block; 10. Movable block; 11. Protection tube. Specific Embodiment

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment

[0034] Referring to Figures 1-5 , an embodiment provided by the present invention: A thermocouple thermometer includes a thermometer body 4 and a protection cover 3. The lower end of the thermometer body 4 is rotatably sleeved with a sleeve 5. The outside of the sleeve 5 is movably sleeved with a connecting block 8. The upper end of the connecting block 8 is rotatably sleeved with a push tube 6. The outside of the push tube 6 is threadedly sleeved with a fixed seat 7;

[0035] Specifically, according to the above-mentioned embodiment, when the installation of the thermometer is completed, the position of the fixed seat 7 is constant. At this time, rotate the push tube 6 to make it rotate threadedly in the fixed seat 7 to achieve upward or downward movement. During the movement, the connecting block 8 sleeved at the lower end will be driven to move synchronously. And according to the clamping blocks 9 fixedly arranged on both sides of the thermometer body 4 near the midpoint, the two clamping blocks 9 are rotatably embedded in the connecting block 8. It can be seen that the thermometer body 4 will also move upward or downward;

[0036] When the outer sleeve 5 is rotated, since the limiting ring is fixedly sleeved on the outside of the lower end of the thermometer body 4, and the sleeve 5 is rotatably sleeved on the outside of the limiting ring. At this time, the sleeve 5 rotates on the outside of the limiting ring. And according to the movable blocks 10 fixedly arranged on both sides of the thermometer body 4 near the lower end, the two movable blocks 10 are respectively movably clamped on both sides inside the protection tube 11. The protection tube 11 is threadedly sleeved at the lower end inside the sleeve 5. It can be seen that when the sleeve 5 is rotated, the protection tube 11 at the lower end should originally rotate with the sleeve 5, but is restricted by the movable blocks 10 and cannot rotate. And since it is threadedly sleeved with the sleeve 5, it moves upward or downward, thereby changing its position, and further changing the exposed length of the measuring end of the thermometer body 4 at the lower end.

[0037] An outer cover 2 is hinged at the upper end of the front end face of the protective cover 3. A fixing mechanism 1 is arranged at the lower end of the rear end face of the outer cover 2. The fixing mechanism 1 includes an inner rod 101, a limiting member 102, an outer rod 103, a spring 104, a fixing block 107 and a slider 108. The upper end of the thermometer body 4 is embedded in the protective cover 3.

[0038] Specifically, according to the above embodiment, one end of the inner rod 101 is fixedly sleeved in the limiting member 102. Second grooves 106 and first grooves 105 are respectively formed at the midpoints of one ends of the limiting member 102 and the outer rod 103. A spring 104 is fixedly arranged at the bottom end inside the first groove 105. Slide grooves 109 are formed on both sides of the inner wall of the second groove 106. Two sliders 108 are respectively slidably arranged in the two slide grooves 109. The two sliders 108 are respectively fixedly arranged at the upper and lower ends of the inner rod 101, and one end of the inner rod 101 is fixedly connected to one end of the spring 104. The fixing block 107 is fixedly arranged on one side of the lower end face of the inner rod 101. One end of the inner rod 101 penetrates through one side of the outer cover 2. A clamping groove is formed on one side of the lower end of the front end face of the thermometer body 4, and the fixing block 107 is embedded in the clamping groove.

[0039] It can be seen that when it is necessary to wrap the mirror part at the upper end of the thermometer body 4, the outer cover 2 is flipped to be located at the upper end of the protective cover 3, and the inner rod 101 is pressed to generate a thrust on the internal spring 104 to cause it to contract. The fixing block 107 is located at the lower end of the inner rod 101 and moves synchronously with the inner rod 101. During the movement of the fixing block 107, it gradually approaches the upper clamping groove and finally is embedded in the clamping groove. At this time, the spring 104 rebounds and restores to push the fixing block 107 to be stuck in the clamping groove. At this time, the outer cover 2 is restricted and fixed, and the upper and lower combination with the protective cover 3 is completed, thereby completing the wrapping and protection effect.

[0040] Working principle: During use, the fixing mechanism 1 can be used to complete the closing and opening of the outer cover 2 as needed, so as to complete the wrapping protection and unfolding of the mirror end of the thermometer body 4. After the installation of the thermometer body 4 is completed, the position of the fixing seat 7 remains unchanged. The push tube 6 can be used to drive the connecting block 8 to move the thermometer body 4 downward, and the rotation of the sleeve 5 can be used to complete the telescopic effect of the lower protective tube 11, so as to adjust the exposed length of the lower measuring end of the thermometer body 4.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A thermocouple thermometer, comprising a thermometer body (4) and a protective cover (3), characterized in that: The lower end of the thermometer body (4) is rotatably sleeved with a sleeve (5), the outer side of the sleeve (5) is movably sleeved with a connection block (8), the upper end of the connection block (8) is rotatably sleeved with a push tube (6), the outer side of the push tube (6) is threadedly sleeved with a fixing seat (7), and the inner side of the sleeve (5) is threadedly sleeved with a protective tube (11) at the lower end; An outer cover (2) is hingedly provided at the upper end of the front end surface of the protective cover (3), and a fixing mechanism (1) is provided at the lower end of the rear end surface of the outer cover (2). The fixing mechanism (1) comprises an inner rod (101), a stopper (102), an outer rod (103), a spring (104), a fixing block (107) and a sliding block (108). The upper end of the thermometer body (4) is embedded in the protective cover (3).

2. A thermocouple thermometer according to claim 1, characterized in that: One end of the inner rod (101) is fixedly sleeved in the limiting member (102); a second groove (106) and a first groove (105) are respectively provided at the midpoints of one end of the limiting member (102) and the outer rod (103); a spring (104) is fixedly provided at the bottom end of the first groove (105); sliding grooves (109) are provided on both sides of the inner wall of the second groove (106); and the two sliding blocks (108) are respectively slidably provided in the two sliding grooves (109).

3. A thermocouple thermometer according to claim 1, characterized in that: The two sliding blocks (108) are respectively fixedly arranged at the upper and lower ends of the inner rod (101), and the inner rod (101) is fixedly connected to one end of the spring (104), and the fixing block (107) is fixedly arranged on one side of the lower end surface of the inner rod (101).

4. A thermocouple thermometer according to claim 1, characterized in that: One end of the inner rod (101) passes through one side of the outer cover (2); a slot is provided on the front end surface of the thermometer body (4) near the lower end, and a fixing block (107) is embedded in the slot.

5. A thermocouple thermometer according to claim 1, characterized in that: Blocks (9) are fixedly arranged on both sides of the thermometer body (4) near the midpoint, and the two blocks (9) are rotatably embedded in the connection block (8).

6. A thermocouple thermometer according to claim 1, characterized in that: Movable blocks (10) are fixedly arranged on both sides of the lower end of the thermometer body (4), and the two movable blocks (10) are movably clamped and arranged on both sides of the inside of the protection tube (11).

7. A thermocouple thermometer according to claim 1, characterized in that: A limiting ring is fixedly sleeved on the outer side of the lower end of the thermometer body (4), and the sleeve (5) is rotatably sleeved on the outer side of the limiting ring.

Images