Thermocouple anti-drop mechanism

Abstract

The utility model discloses a thermocouple anti-drop mechanism, which comprises a ring sleeve and an inner hole formed in the middle of the ring sleeve, a thermocouple is inserted into the ring sleeve, a connecting sleeve is fixedly mounted on the surface of the thermocouple, a plurality of gear rings are arranged on the peripheral side surface of the connecting sleeve, at least one through groove is formed in the peripheral side surface of the ring sleeve, and the inner hole is formed in the middle of the ring sleeve. The through groove is communicated with an inner hole of the ring sleeve, and a clamping block is arranged in the through groove in a sliding mode in the radial direction of the ring sleeve. When the clamping ring makes contact with the ring sleeve, if the pressing strip is located in the through hole, the first magnet and the second magnet are in a staggered state, the opposite faces of the first magnet and the second magnet are not right opposite faces, and therefore the magnetic force of mutual magnetic attraction is weak; however, if the pressing plate is in contact with the vertical surface of the clamping block and slides into the arc-shaped hole, the first magnet and the second magnet are in contact with each other, so that the clamping ring is difficult to separate from the ring sleeve, the thermocouple is clamped by the ring sleeve and is difficult to separate, and the risk of loosening or falling of the clamping mechanism is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermocouple technical field, concretely relates to a thermocouple anti -drop mechanism. BACKGROUND

[0002] In the field of thermocouples, accurate temperature measurement plays a crucial role in numerous industries and scientific research, particularly in material processing, environmental protection, medical technology, and remote sensing. Based on the working principle of thermocouples, which generates voltage through the temperature difference between two materials, thermocouples are widely used for temperature detection in various high-temperature and low-temperature environments.

[0003] Among them, the clamping mechanism of the thermocouple is an important part of the thermocouple measurement system. It is a device used to fix and protect the thermocouple to ensure that the thermocouple can accurately measure the temperature at different positions.

[0004] However, the existing clamping mechanism has a common problem, which is that under adverse conditions such as long-term wear and tear, the clamping piece is prone to loosening or even falling off, which not only affects the accuracy and service life of the thermocouple, but also may cause safety hazards. SUMMARY

[0005] In order to solve at least one technical problem mentioned in the background art, the purpose of the present utility model is to provide a thermocouple anti -drop mechanism to reduce the risk of loosening or falling off of the clamping mechanism.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a thermocouple anti -drop mechanism, comprising an inner hole formed by a ring and a middle part of the ring, a thermocouple inserted into the ring, a connecting sleeve fixedly installed on the surface of the thermocouple, a plurality of gear rings provided on the side of the connecting sleeve, at least one through slot provided on the side of the ring, the through slot being in communication with the inner hole of the ring, a clamping block provided in the through slot and sliding along the radial direction of the ring, a clamping strip fixedly installed on the side of the clamping block close to the thermocouple and matched with the gear ring, a pressing plate provided on the ring for pushing the clamping block to move towards the gear ring, and a through hole provided on the ring for the pressing plate to pass through.

[0007] A clasp is fixedly installed on the upper side of the pressing plate, the clasp is coaxial with the ring, an arc-shaped hole is provided in the ring for the pressing plate to slide, the arc-shaped hole is in communication with the through hole, a first magnet is fixedly installed on the side of the ring close to the clasp, a second magnet is fixedly installed on the side of the clasp close to the ring, the opposite poles of the first magnet and the second magnet are different, when the clasp contacts the ring and the pressing plate is located in the through hole, the first magnet and the second magnet are misaligned, when the clasp contacts the ring and the pressing plate is located in the arc-shaped hole, the first magnet and the second magnet are in contact.

[0008] Further, the ring sleeve is provided with a clamping groove on the inner side of the arc-shaped hole away from the through hole, and the pressing plate is fixedly installed with a limiting block for inserting into the clamping groove.

[0009] Further, the clamping block is provided with an inclined surface and a vertical surface on the side away from the thermocouple, the pressing plate is located on the upper side of the inclined surface or in contact with the inclined surface when the clamping strip is separated from the gear ring, and the pressing plate is in abutment with the vertical surface when the clamping strip is in contact with the gear ring.

[0010] Further, the clamping block is provided with an inclined surface and a vertical surface on the side away from the thermocouple, the pressing plate is located on the upper side of the inclined surface or in contact with the inclined surface when the clamping strip is separated from the gear ring, and the pressing plate is in abutment with the vertical surface when the clamping strip is in contact with the gear ring.

[0011] Further, the clamping block is provided with an inclined surface and a vertical surface on the side away from the thermocouple, the pressing plate is located on the upper side of the inclined surface or in contact with the inclined surface when the clamping strip is separated from the gear ring, and the pressing plate is in abutment with the vertical surface when the clamping strip is in contact with the gear ring.

[0012] Further, the clamping block is provided with an inclined surface and a vertical surface on the side away from the thermocouple, the pressing plate is located on the upper side of the inclined surface or in contact with the inclined surface when the clamping strip is separated from the gear ring, and the pressing plate is in abutment with the vertical surface when the clamping strip is in contact with the gear ring.

[0013] Further, the clamping block is provided with an inclined surface and a vertical surface on the side away from the thermocouple, the pressing plate is located on the upper side of the inclined surface or in contact with the inclined surface when the clamping strip is separated from the gear ring, and the pressing plate is in abutment with the vertical surface when the clamping strip is in contact with the gear ring.

[0014] Further, the clamping block is provided with an inclined surface and a vertical surface on the side away from the thermocouple, the pressing plate is located on the upper side of the inclined surface or in contact with the inclined surface when the clamping strip is separated from the gear ring, and the pressing plate is in abutment with the vertical surface when the clamping strip is in contact with the gear ring.

[0015] Compared with the prior art, the utility model has the advantages that when the clamping ring and the ring sleeve are in contact, if the pressing strip is located in the through hole, the first magnet and the second magnet are in a misaligned state, the opposite surfaces of the first magnet and the second magnet are not in direct contact, the magnetic force of mutual magnetic attraction is weak, manual operation is facilitated to drive the clamping ring to move along the ring sleeve in the axial direction, but if the pressing plate is in contact with the vertical surface of the clamping block and slides into the arc-shaped hole, the first magnet and the second magnet are in contact with each other, the opposite surfaces are in close contact, the magnetic force generated by the lock is maximum, the clamping ring and the ring sleeve are more stably fixed together, the clamping ring is difficult to separate from the ring sleeve, the thermocouple is clamped by the ring sleeve and is difficult to separate, and the risk of loosening or falling off of the clamping mechanism is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a first perspective view of the overall structure of the utility model;

[0017] Figure 2 It is a second perspective view of the overall structure of the utility model;

[0018] Figure 3 It is an overall structure of the utility model;

[0019] Figure 4 It is a partial sectional view of the overall structure of the utility model;

[0020] Figure 5 It is a full sectional view of the overall structure of the utility model;

[0021] Figure 6 For the utility model in Figure 5 A structure partial enlarged view.

[0022] Figure: 1, ring sleeve;11, inner hole;12, through slot;13, clamping block;14, clamping strip;15, spring;16, perforation;17, guide rod;18, arc hole;19, first magnet;20, clamping groove;3, thermocouple;4, connecting sleeve;5, gear ring;6, positioning member;61, pressing plate;62, through hole;63, inclined surface;64, vertical surface;65, limit block;7, clamping ring;71, second magnet. Specific embodiments

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the embodiment provides a thermocouple anti-drop mechanism, including ring sleeve 1 and the inner hole 11 formed in the middle part of ring sleeve 1, the ring sleeve 1 is inserted with thermocouple 3, the surface of thermocouple 3 is fixedly installed with connecting sleeve 4, the peripheral side of connecting sleeve 4 is provided with a plurality of gear rings 5, the peripheral side of ring sleeve 1 is provided with at least one through slot 12, the through slot 12 is communicated with the inner hole 11 of ring sleeve 1, the clamping block 13 is arranged in the through slot 12 and is slid along the radial direction of ring sleeve 1, the side of clamping block 13 close to thermocouple 3 is fixedly installed with the clamping strip 14 matched with gear ring 5, the ring sleeve 1 is provided with positioning member 6 for inserting clamping strip 14 into adjacent gear ring 5.

[0025] The clamping mechanism for the thermocouple 3 can effectively fix the thermocouple 3 by cooperation between the ring sleeve 1 and the thermocouple 3, preventing displacement of the thermocouple 3 during measurement. The clamping mechanism is mainly arranged outside the temperature measuring equipment, that is, the ring sleeve 1 is fixed outside the temperature measuring equipment, and the thermocouple head is inserted into the temperature measuring equipment for temperature measurement. Specifically, a plurality of gear rings 5 arranged on the circumferential surface of the connecting sleeve 4 of the thermocouple 3 cooperate with the clamping blocks 13 and the clamping strips 14 radially slidingly arranged in the inner diameter of the through slot 12 of the ring sleeve 1. When the clamping strips 14 are inserted into the adjacent gear rings 5 by the positioning member 6, the thermocouple 3 can be fastened, ensuring that the thermocouple 3 will not loosen due to vibration or external force during operation, thereby ensuring the accuracy and stability of the measurement. The clamping strips 14 are inserted into different gear rings 5, which can adjust the position of the thermocouple 3, facilitating the detection of the temperature of different regions.

[0026] Please refer to Figures 4-6 The positioning member 6 includes a pressing plate 61 moving axially along the ring sleeve 1, and the ring sleeve 1 is provided with a through hole 62 for the pressing plate 61 to pass through, the through hole 62 being in communication with the through slot 12. The side of the clamping block 13 away from the thermocouple 3 is provided with an inclined surface 63 and a vertical surface 64. When the clamping strip 14 is separated from the gear ring 5, the pressing plate 61 is located on the upper side of the inclined surface 63 or in contact with the inclined surface 63. When the clamping strip 14 contacts the gear ring 5, the pressing plate 61 abuts against the vertical surface 64.

[0027] In the initial state, the pressing plate 61 is located on the upper side of the inclined surface 63 of the clamping block 13 or in contact with the inclined surface 63, and at this time the thermocouple 3 can move relative to the ring sleeve 1, and the clamping strip 14 does not contact the gear ring 5. After moving the thermocouple 3 to the desired position, the pressing plate 61 is moved towards the clamping block 13, and the pressing plate 61 will move along the inclined surface 63 to the vertical surface 64. In this process, the clamping block 13 will move towards the thermocouple 3 until the clamping strip 14 on the clamping block 13 is embedded between the gear rings 5, achieving the fixation and positioning of the thermocouple 3, thereby achieving the effects of convenient installation and safe fixation.

[0028] To facilitate the rebound of the clamping block 13 and facilitate the automatic disengagement of the clamping strip 14 from the gear ring 5 when the pressing plate 61 is removed, a spring 15 is further included for driving the clamping block 13 away from the thermocouple 3. The spring 15 is fixedly installed between the inner wall of the through slot 12 and the clamping block 13. When the clamping block 13 is pushed by the pressing plate 61 to move in the direction of the thermocouple 3, the spring 15 is stretched and accumulates elastic potential energy inside. When the pressing plate 61 is removed, under the elastic force of the spring 15, the clamping block 13 will move away from the thermocouple 3, that is, it will shrink into the through slot 12.

[0029] Please refer to Figure 5 and Figure 6The card block 13 is provided with a through hole 16, a guide rod 17 is slidably arranged in the through hole 16, and the guide rod 17 is fixedly connected with the inner wall of the through groove 12. The guide rod 17 guides the card block 13, so that the card block 13 can slide stably in the through groove 12.

[0030] The guide rod 17 is located in the spring 15. The spring 15 has a one-way rod, so that when the spring 15 is bent, the guide rod 17 can limit the bending of the spring 15.

[0031] The card strip 14 is arc-shaped, and the diameter of the virtual circle formed by the card strip 14 is the same as the diameter of the gear ring 5. Therefore, after the card strip 14 is embedded in the gear ring 5, the contact area is increased, and the force is uniformly distributed.

[0032] The side of the card block 13 close to the thermocouple 3 is arc-shaped. The card block 13 is easy to be attached to the card strip 14, the connection area of the card block 13 and the card strip 14 is increased, the force is distributed, and the card block 13 is not easy to be damaged.

[0033] The through groove 12 has two through grooves, which are oppositely arranged on both sides of the thermocouple 3. Therefore, the card strip 14 is clamped on both sides of the thermocouple 3, the force is uniformly distributed, and the deformation of each component is small.

[0034] The clamping ring 7 is coaxially arranged on the upper side of the two pressing plates 61, and the outer diameter of the clamping ring 7 is larger than the outer diameter of the ring sleeve 1.

[0035] When the pressing plate 61 needs to be moved along the axial direction of the ring sleeve 1, the clamping ring 7 can be pulled manually. Since the outer diameter of the clamping ring 7 is larger than the outer diameter of the ring sleeve 1, the clamping ring 7 is easy to be taken.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 4 , the arc-shaped hole 18 for sliding of the pressing plate 61 is arranged in the ring sleeve 1, the arc-shaped hole 18 is in communication with the through hole 62, the first magnet 19 is fixedly arranged on the side of the ring sleeve 1 close to the clamping ring 7, the second magnet 71 is fixedly arranged on the side of the clamping ring 7 close to the ring sleeve 1, the opposite poles of the first magnet 19 and the second magnet 71 are different, the first magnet 19 and the second magnet 171 are misaligned when the clamping ring 7 contacts the ring sleeve 1 and the pressing plate 61 is located in the through hole 62, and the first magnet 19 contacts the second magnet 71 when the clamping ring 7 contacts the ring sleeve 1 and the pressing plate 61 is located in the arc-shaped hole 18.

[0037] When the clasp 7 and the ring 1 contact, if the pressing plate is located in the through hole 62, the first magnet 19 and the second magnet 71 are in a misaligned state, the opposite faces of the first magnet 19 and the second magnet 71 are not in direct contact, and the magnetic attraction between the first magnet 19 and the second magnet 71 is weak, so as to facilitate the manual operation to drive the clasp 7 to move along the ring 1 in the axial direction; but if the pressing plate 61 contacts the vertical face 64 of the clamping block 13 and slides into the arc-shaped hole 18, the first magnet 19 and the second magnet 71 will contact each other, and the opposite faces are in close contact, at this time, the magnetic force generated by the lock is the largest, so that the clasp 7 and the ring 1 are more stably fixed together, and then the clasp 7 is difficult to separate from the ring 1, so that the thermocouple 3 is clamped by the ring 1 and is difficult to separate, and if it is necessary to separate the clasp 7 and the ring 1, the clasp 7 is first rotated, so that the clasp 7 and the ring 1 are relatively rotated, at this time, the opposite faces of the first magnet 19 and the second magnet 71 are separated, so that the mutual magnetic attraction between the first magnet 19 and the second magnet 71 is greatly reduced, and the separation of the clasp 7 and the ring 1 is facilitated. This design ingeniously utilizes the magnetic attraction of the magnet and the position change of the clamping strip 14 in different holes, realizes the flexible installation and stable fixation of the clasp 7 and the ring 1, enhances the reliability of the overall structure, and effectively reduces the separation of the pressing plate 61 and the clamping block.

[0038] Please refer to Figure 3 and Figure 4 , wherein the anti-separation performance of the thermocouple 3 and the ring 1 is further enhanced. The ring 1 is provided with a clamping groove 20 on the side away from the through hole 62, and the pressing plate 61 is fixedly provided with a limiting block 65 for inserting into the clamping groove 20.

[0039] When the pressing plate 61 slides into the arc-shaped hole 18 and the opposite faces of the first magnet 19 and the second magnet 71 contact, the limiting block 65 also inserts into the clamping groove 20, so that the pressing plate 61 cannot move in the axial direction of the ring 1, and then the first magnet 19 and the second magnet 71 are also difficult to separate along the axial line of the ring 1, so as to enhance the connection strength of the first magnet 19 and the second magnet 71, that is, to improve the anti-separation performance of the thermocouple 3.

[0040] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A thermocouple anti-drop mechanism characterized by comprising: The inner hole is formed in the middle of the ring sleeve, the thermocouple is inserted into the inner hole, a connecting sleeve is fixedly installed on the surface of the thermocouple, a plurality of gear rings are arranged on the circumferential surface of the connecting sleeve, at least one through slot is formed in the circumferential surface of the ring sleeve, the through slot is communicated with the inner hole of the ring sleeve, a clamping block is arranged in the through slot and is capable of sliding along the radial direction of the ring sleeve, a clamping strip is fixedly installed on the side of the clamping block close to the thermocouple and is matched with the gear ring, a pressing plate is arranged on the ring sleeve and is used to push the clamping block to move towards the gear ring, and a through hole is formed in the ring sleeve and is used for the pressing plate to pass through. A clamping ring is fixedly installed on the upper side of the pressing plate, the clamping ring is coaxial with the ring sleeve, an arc-shaped hole is formed in the ring sleeve and is used for the pressing plate to slide, the arc-shaped hole is communicated with the through hole, a first magnet is fixedly installed on the side of the ring sleeve close to the clamping ring, a second magnet is fixedly installed on the side of the clamping ring close to the ring sleeve, the opposite poles of the first magnet and the second magnet are different, the first magnet and the second magnet are misaligned when the clamping ring contacts the ring sleeve and the pressing plate is located in the through hole, and the first magnet and the second magnet are in contact when the clamping ring contacts the ring sleeve and the pressing plate is located in the arc-shaped hole.

2. The thermocouple release prevention mechanism of claim 1, wherein A clamping groove is formed in the ring sleeve and is located on the side of the arc-shaped hole away from the through hole, and a limiting block is fixedly installed on the side of the pressing plate and is used to be inserted into the clamping groove.

3. The thermocouple release prevention mechanism of claim 1, wherein An inclined surface and a vertical surface are arranged on the side of the clamping block away from the thermocouple, the pressing plate is located on the upper side of the inclined surface or contacts the inclined surface when the clamping strip is separated from the gear ring, and the pressing plate abuts against the vertical surface when the clamping strip contacts the gear ring.

4. The thermocouple release prevention mechanism of claim 1, wherein A spring is further arranged and is used to drive the clamping block away from the thermocouple, and the spring is fixedly installed between the inner wall of the through slot and the clamping block.

5. The thermocouple release mechanism of claim 4, wherein: A through hole is formed in the clamping block, a guide rod is slidably arranged in the through hole, and the guide rod is fixedly connected with the inner wall of the through slot.

6. The thermocouple release mechanism of claim 5, wherein: The guide rod is located in the spring.

7. The thermocouple release prevention mechanism of claim 1, wherein The through slot has two and is oppositely arranged on the two sides of the thermocouple.

8. The thermocouple release prevention mechanism of claim 1, wherein, Both the pressing plates are fixedly connected with the clamping ring, and the outer diameter of the clamping ring is greater than the outer diameter of the ring sleeve.

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