Temperature transmitter for easy installation

Abstract

The utility model discloses a kind of temperature transmitter convenient to install, including temperature transmitter body and columnar temperature sensing stick, it is characterized by further include upper cylinder, lower cylinder and control ring, the control ring is rotationally fitted between upper cylinder and lower cylinder, the upper side of lower cylinder is equipped with multiple chutes, the extension line of chute and lower cylinder axis intersects, sliding block is slidably fitted in chute, unidirectional runner is rotationally fitted with sliding block towards lower cylinder inner side one end, the upper side of sliding block is equipped with driving rod. The utility model is automatically locked by the unidirectional runner, without tool, the preliminary fixation of temperature transmitter body can be completed, secondary fixation only needs to rotate control ring, shorten temperature transmitter body installation time, and at this time, only need to pull and reverse rotation control ring, can be released lock, realize the quick disassembly of temperature transmitter body, improve maintenance efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of temperature transmitter technology, specifically, it relates to a temperature transmitter that is easy to install. Background Technology

[0002] In the field of industrial temperature measurement, temperature transmitters, as core measurement and control equipment, typically use temperature sensing elements such as thermocouples and resistance temperature detectors (RTDs) to acquire temperature signals. These signals are processed by the transmitter module, passing through circuits for voltage regulation and filtering, operational amplification, nonlinear correction, V / I conversion, constant current output, and reverse protection. Ultimately, they are converted into a 4–20mA current signal, a 0-5V / 0-10V voltage signal, or an RS485 digital signal that is linearly related to temperature, enabling accurate acquisition and transmission of temperature parameters. Currently, temperature transmitters commonly use a bottom-threaded connection for installation, securing them to the mounting base via thread engagement. While this traditional installation method offers some structural stability, repeated disassembly and reassembly are necessary for equipment maintenance during long-term use. The threaded connection is prone to stripping due to stress concentration, leading to damage to the threaded holes in the mounting base. Ultimately, this necessitates the complete disassembly and replacement of the entire installation structure, increasing maintenance and time costs. Furthermore, the threaded installation requires precise alignment and tightening, which is cumbersome and time-consuming in large-scale engineering installations, impacting construction efficiency.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a temperature transmitter that is easy to install, thus solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A temperature transmitter that is easy to install includes a temperature transmitter body and a cylindrical sensing rod. It is characterized in that it further includes an upper cylinder, a lower cylinder and a control ring. The control ring is rotatably fitted between the upper cylinder and the lower cylinder. The upper side of the lower cylinder is provided with multiple sliding grooves. The extension line of the sliding groove intersects the axis of the lower cylinder. A slider is slidably fitted in the sliding groove. A one-way rotating wheel is rotatably fitted to one end of the slider facing the inner side of the lower cylinder. A drive rod is installed on the upper side of the slider. Multiple drive slots are provided on the upper side of the control ring, and multiple arc-shaped slots are provided on the upper side of the control ring. The drive rod is slidably engaged in the drive slot. The drive slot is used to make the distance between the drive rod and the lower cylinder axis gradually change. Multiple connecting rods are provided between the upper cylinder and the lower cylinder. The connecting rods are located in the arc-shaped slot. The arc-shaped slot is used to keep the lower cylinder and the control ring coaxial. The columnar temperature sensing rod is coaxial with the upper and lower cylinders and is located inside the upper and lower cylinders.

[0006] Optionally, limit grooves are provided on both sides of the slide groove, and limit blocks are installed on both sides of the slider, with the limit blocks slidingly engaged in the limit grooves.

[0007] Optionally, a storage groove is provided on the lower side of the upper cylinder, and a compression ring is elastically fitted in the storage groove. A first annular groove is provided on the upper side of the control ring, and the compression ring is slidably fitted in the first annular groove.

[0008] Optionally, the upper side of the lower cylinder is provided with an avoidance groove, and the upper side of the lower cylinder is provided with a second annular groove that communicates with multiple sliding grooves. The bottom of the second annular groove and the lower side of the control ring are provided with multiple arc-shaped toothed plates. Optionally, the arc-shaped toothed plates are provided with teeth, the longitudinal section of the teeth is a right triangle, and the inclined surface of the teeth at the bottom of the second annular groove faces the opposite direction to the inclined surface of the teeth on the lower side of the control ring.

[0009] Optionally, two support plates are installed at one end of the slider, and a fixed shaft is provided between the two support plates. A one-way rotating wheel is rotated and fitted on the fixed shaft, and the one-way rotating wheel is located between the two support plates. Optionally, the one-way rotating wheel has a cavity inside, a pawl ring is installed on the cavity, and at least one elastic card is installed on the fixed shaft.

[0010] Optionally, the lower side of the upper cylinder and the upper side of the lower cylinder are provided with multiple threaded holes, both ends of the connecting rod are provided with threads, the helices at both ends of the connecting rod are opposite, and a flat part is provided in the middle of the connecting rod.

[0011] Optionally, the slider includes a sliding part and a movable part. The sliding part is provided with a sliding hole. A portion of the movable part is slidably connected to the sliding hole. The sliding direction of the movable part intersects with the axis of the lower cylinder. A helical spring for pushing the movable part to slide is provided in the sliding hole. A one-way rotating wheel is connected to the free end of the movable part.

[0012] Optionally, the upper cylinder, lower cylinder, and control ring are made of plastic, while the connecting rod and drive rod are made of metal.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: 1. The automatic locking function of the one-way rotating wheel allows for the initial fixing of the temperature transmitter body without tools. The secondary fixing only requires rotating the control ring, which shortens the installation time of the temperature transmitter body. At this time, simply pull and rotate the control ring in the opposite direction to unlock the lock, enabling quick disassembly of the temperature transmitter body and improving maintenance efficiency. 2. The ratchet toothed ring inside the one-way rotary wheel and the elastic card form a mechanical one-way rotation structure to prevent the temperature transmitter body from being pulled out. After the control ring meshes with the arc-shaped toothed plate of the lower cylinder, it achieves rigid locking through the plane side of the teeth to prevent the temperature transmitter body from being loosened. 3. The elastic design of the compression ring ensures that the control ring always maintains axial pressure, compensating for wear or loosening after long-term use and ensuring connection stability; 4. The radial sliding design of the slider can adapt to temperature transmitter bodies with different outer diameters. Different clamping forces can be achieved by adjusting the rotation angle of the control ring, thereby improving the versatility of the components.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the temperature transmitter body structure; Figure 2 This is a schematic diagram of a structure with multiple fasteners; Figure 3 This is a schematic diagram of a unidirectional rotary wheel structure; Figure 4 This is a schematic diagram of the lower cylinder structure; Figure 5 This is a schematic diagram of the drive slot structure; Figure 6 This is a schematic diagram of the ratchet tooth ring structure.

[0016] Figure 7 This is a schematic diagram of the slider structure.

[0017] The attached diagram lists the components represented by each number as follows: Temperature transmitter body 1, mounting base 2, fixing component 4, upper cylinder 5, lower cylinder 6, control ring 7, sliding groove 8, slider 9, one-way rotating wheel 10, drive rod 11, drive groove 12, arc groove 13, limit groove 14, limit block 15, storage groove 16, compression ring 17, first annular groove 18, clearance groove 19, second annular groove 20, arc toothed plate 21, teeth 22, fixed shaft 24, cavity 25, ratchet toothed ring 26, elastic card 27, connecting rod 28.

[0018] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Please see Figure 1-7 As shown, this embodiment provides a temperature transmitter that is easy to install, including a temperature transmitter body and a cylindrical sensing rod 1, as well as an upper cylinder 5, a lower cylinder 6, and a control ring 7. The control ring 7 is rotatably fitted between the upper cylinder 5 and the lower cylinder 6. Multiple sliding grooves 8 are formed on the upper side of the lower cylinder 6, and the extension lines of the sliding grooves 8 intersect the axis of the lower cylinder 6. A slider 9 is slidably fitted within the sliding grooves 8. A one-way rotating wheel 10 is rotatably fitted to one end of the slider 9 facing inwards from the lower cylinder 6. A drive rod 11 is mounted on the upper side of the slider 9. Several control rings 7 and related accessories can be provided to fix the one-way rotating wheel 10 at different axial positions of the cylindrical sensing rod 1. A mounting base 2 is fixedly connected to the top of the upper cylinder 5 for easy connection to a wall or other fixed parts.

[0021] Multiple drive grooves 12 are formed on the upper side of the control ring 7. The drive grooves 12 have a tapered arc structure. Multiple arc-shaped grooves 13 are formed on the upper side of the control ring 7. The center point of the arc-shaped grooves 13 coincides with the axis of the lower cylinder 6. The drive rods 11 of the arc-shaped grooves 13 are slidably fitted in the drive grooves 12. Multiple connecting rods 28 are provided between the upper cylinder 5 and the lower cylinder 6. One end of the connecting rod 28 is fixedly connected to the lower cylinder 6. The connecting rods 28 are located in the arc-shaped grooves 13.

[0022] The columnar temperature sensing rod 1 is coaxial with the upper cylinder 5 and the lower cylinder 6 and is installed inside the upper cylinder 5 and the lower cylinder 6.

[0023] The automatic locking function of the one-way rotating wheel 10 allows for initial fixing of the temperature transmitter body 1 without tools. Secondary fixing only requires rotating the control ring 7, shortening the installation time of the temperature transmitter body 1. Furthermore, simply pulling and rotating the control ring 7 in the opposite direction releases the lock, enabling quick disassembly of the temperature transmitter body 1 and improving maintenance efficiency. The one-way rotating wheel 10 achieves unidirectional rotation through an internal ratchet and pawl mechanism.

[0024] In this embodiment, limit grooves 14 are provided on both opposite sides of the slide groove 8, and limit blocks 15 are installed on both sides of the slider 9. The limit blocks 15 are slidably engaged in the limit grooves 14. The sliding engagement of the limit blocks 15 in the limit grooves 14 provides linear motion trajectory constraint for the slider 9, preventing it from tilting or deviating laterally during radial movement. This ensures that multiple unidirectional rollers 10 move synchronously and uniformly toward the temperature transmitter body 1, improving the stability and consistency of the clamping process, and preventing the slider 9 from accidentally falling out of the slide groove 8. Especially when the control ring 7 rotates rapidly or is subjected to vibration and impact, the engagement of the limit blocks 15 and the limit grooves 14 maintains a reliable connection between the slider 9 and the slide groove 8, enhancing the overall structural strength and durability of the fixing member 4.

[0025] In this embodiment, a receiving groove 16 is provided on the lower side of the upper cylinder 5, and a compression ring 17 is elastically fitted inside the receiving groove 16. A first annular groove 18 is provided on the upper side of the control ring 7, and the compression ring 17 is slidably fitted inside the first annular groove 18. The compression ring 17 is slidably fitted inside the receiving groove 16, and multiple springs or elastic telescopic rods are provided between the receiving groove 16 and the compression ring 17. By providing multiple springs or elastic telescopic rods between the receiving groove 16 and the compression ring 17, the elastic force can be evenly transmitted to all circumferential positions of the compression ring 17, avoiding pressure concentration or eccentricity problems that may occur with a single elastic structure. When the control ring 7 rotates or is affected by vibration, the adaptive deformation capability of the elastic element can compensate for the small axial displacement between the upper cylinder 5 and the lower cylinder 6 in real time, ensuring that the control ring 7 always fits the lower cylinder 6 with uniform pressure, avoiding jamming or loosening caused by uneven pressure.

[0026] In this embodiment, the upper side of the lower cylinder 6 is provided with a clearance groove 19, and the upper side of the lower cylinder 6 is provided with a second annular groove 20 that communicates with multiple sliding grooves 8. Multiple arc-shaped toothed plates 21 are provided at the bottom of the second annular groove 20 and at the bottom of the control ring 7. The arc-shaped toothed plates 21 in this embodiment have teeth 22, the longitudinal section of which is a right-angled triangle. The inclined surface of the teeth 22 at the bottom of the second annular groove 20 faces opposite to the inclined surface of the teeth 22 on the lower side of the control ring 7. When the control ring 7 rotates, the inclined teeth 22 slide and guide, and after reaching their position, the planar tooth surfaces rigidly engage, preventing self-reversal caused by vibration. The integrated design of the clearance groove 19 and the second annular groove 20 provides motion redundancy space for the slider 9, avoiding interference and improving structural compatibility. The planar contact of the right-angled triangular teeth disperses the load, reducing wear, and combined with lubrication-free wear-resistant materials, reduces maintenance costs.

[0027] In this embodiment, two support plates are mounted on one end of the slider 9, and a fixed shaft 24 is disposed between the two support plates. The one-way rotating wheel 10 is rotatably engaged with the fixed shaft 24, and the one-way rotating wheel 10 is located between the two support plates. The one-way rotating wheel 10 in this embodiment has a cavity 25 inside, and a pawl ring 26 is mounted on the cavity 25. At least one elastic clip 27 is mounted on the fixed shaft 24. The one-way rotating wheel 10 in this embodiment is a rubber wheel. The slider 9 provides a stable rotation fulcrum for the one-way rotating wheel 10 through the cooperation of the support plates at both ends and the fixed shaft 24: the two support plates clamp the one-way rotating wheel 10, restricting its axial movement, ensuring that the one-way rotating wheel 10 is subjected to uniform force when in contact with the temperature transmitter body 1, and improving clamping stability. The pawl ring 26 inside the cavity 25 of the one-way rotary wheel 10 and the elastic card 27 of the fixed shaft 24 constitute a one-way clutch mechanism: when the temperature transmitter body 1 is inserted, the one-way rotary wheel 10 can rotate; when it is pulled out, the elastic card 27 engages and locks with the pawl ring 26 in a plane, realizing one-way constraint and preventing the temperature transmitter body 1 from falling off.

[0028] In this embodiment, the lower side of the upper cylinder 5 and the upper side of the lower cylinder 6 are provided with multiple threaded holes. Both ends of the connecting rod 28 are threaded, and the helices at both ends of the connecting rod 28 are opposite. A flat part is provided in the middle of the connecting rod 28. The connection or separation of the upper and lower cylinders is achieved by screwing the threads, which facilitates the inspection and replacement of internal components such as the control ring 7 and the compression ring 17, improves maintenance efficiency, and avoids the irreversible defects of traditional fixing methods.

[0029] Optionally, the slider 9 includes a sliding part 31 and a movable part 29. The sliding part 31 is provided with a sliding hole, and a portion of the movable part 29 is slidably connected to the sliding hole. The sliding direction of the movable part 29 intersects the axis of the lower cylinder 6. A helical spring 30 is provided in the sliding hole to push the movable part 29 to slide. The one-way rotating wheel 10 is connected to the free end of the movable part. The helical spring 30 ensures that the one-way rotating wheel 10 always maintains effective contact with the columnar temperature sensing rod.

[0030] Optionally, the upper cylinder 5, lower cylinder 6, and control ring 7 are made of plastic, while the connecting rod 28 and drive rod 11 are made of metal. Using plastic for the upper cylinder 5, lower cylinder 6, and control ring reduces costs and may lighten weight, while using metal for the connecting rod 28 and drive rod 11 ensures structural strength and transmission reliability, achieving a balance between performance and cost.

[0031] Working principle: When it is necessary to install the temperature transmitter body 1, insert it into the mounting assembly 2. The specific procedure is as follows: I. Preliminary Fixation When the temperature transmitter body 1 is inserted, its outer surface presses against the one-way rollers 10 and drives them to rotate. Multiple one-way rollers 10 maintain close contact with the surface of the temperature transmitter body 1 through their outer rubber material, increasing friction while reducing wear on the body surface through flexible contact. As the one-way rollers 10 rotate, the pawl ring 26 of the internal cavity 25 rotates synchronously, forming a one-way engagement structure with the elastic clip 27 on the fixed shaft 24. This allows the one-way rollers 10 to rotate only in the insertion direction of the temperature transmitter body 1, thus achieving one-way locking of the temperature transmitter body 1 while preventing reverse removal, completing the initial positioning.

[0032] Secondary Fixation After initial positioning, the control ring 7 is manually rotated. The control ring 7 drives multiple drive rods 11 to move synchronously via the upper drive groove 12. The drive rods 11 push the slider 9 to slide radially within the slide groove 8, causing the unidirectional rotating wheel 10 to move closer to the axis of the temperature transmitter body 1, further tightening the clamping force on the temperature transmitter body 1 and achieving secondary reinforcement. During this process, the upper cylinder 5 and lower cylinder 6 are kept coaxially constrained by the connecting rod 28, and the control ring 7 rotates along the arc-shaped groove 13 to ensure a stable motion trajectory.

[0033] III. Control Loop Locking and Pressure Compensation When the control ring 7 rotates, the lower arc-shaped toothed plate 21 contacts the arc-shaped toothed plate 21 at the bottom of the second annular groove 20 on the lower cylinder 6. Since the inclined surfaces of the teeth 22 face opposite directions, the inclined surfaces of the teeth slide past each other during rotation until the control ring 7 rotates to the preset position, at which point the planar sides of the teeth 22 are fully engaged, forming a rigid lock. At the same time, the compression ring 17 in the receiving groove 16 on the lower side of the upper cylinder 5 applies continuous pressure to the first annular groove 18 of the control ring 7 by means of elastic deformation, ensuring that the control ring 7 is tightly fitted to the upper surface of the lower cylinder 6, preventing loosening, and allowing the control ring 7 to rotate without obstruction through the annular groove structure.

[0034] IV. Dismantling Operation When removing the temperature transmitter body 1, first pull the control ring 7 upwards to overcome the elastic force of the compression ring 17 and bring it closer to the upper cylinder 5, causing the lower arc-shaped toothed plate 21 to separate from the arc-shaped toothed plate 21 on the lower cylinder 6. After releasing the locking of the teeth 22, rotate the control ring 7 in the opposite direction, pulling the drive rod 11 through the drive groove 12, causing the slider 9 to drive the one-way rotating wheel 10 radially away from the temperature transmitter body 1. After the clamping force is completely released, the temperature transmitter body 1 can be directly pulled out. The entire process requires no additional tools and is easy to operate.

[0035] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A temperature transmitter that is easy to install, comprising a temperature transmitter body and a cylindrical sensing rod (1), characterized in that, It also includes an upper cylinder (5), a lower cylinder (6) and a control ring (7). The control ring (7) is rotatably fitted between the upper cylinder (5) and the lower cylinder (6). Multiple sliding grooves (8) are provided on the upper side of the lower cylinder (6). The extension line of the sliding groove (8) intersects the axis of the lower cylinder (6). A slider (9) is slidably fitted in the sliding groove (8). A one-way rotating wheel (10) is rotatably fitted on one end of the slider (9) facing the inner side of the lower cylinder (6). A drive rod (11) is installed on the upper side of the slider (9). Multiple drive grooves (12) are provided on the upper side of the control ring (7), and multiple arc grooves (13) are provided on the upper side of the control ring (7). The drive rod (11) is slidably fitted in the drive groove (12). The drive groove (12) is used to make the distance between the axis of the drive rod (11) and the lower cylinder (6) gradually change. Multiple connecting rods (28) are provided between the upper cylinder (5) and the lower cylinder (6). The connecting rods (28) are located in the arc groove (13). The arc groove (13) is used to keep the lower cylinder (6) and the control ring (7) coaxial. The columnar temperature sensing rod (1) is coaxial with the upper cylinder (5) and the lower cylinder (6) and is located inside the upper cylinder (5) and the lower cylinder (6).

2. The temperature transmitter that is easy to install according to claim 1, characterized in that, Limiting grooves (14) are provided on both sides of the sliding groove (8), and limiting blocks (15) are installed on both sides of the slider (9). The limiting blocks (15) slide in the limiting grooves (14).

3. The temperature transmitter that is easy to install according to claim 1, characterized in that, The upper cylinder (5) has a storage groove (16) on its lower side, and a compression ring (17) is elastically fitted inside the storage groove (16). The control ring (7) has a first annular groove (18) on its upper side, and the compression ring (17) is slidably fitted inside the first annular groove (18).

4. The temperature transmitter that is easy to install according to claim 1, characterized in that, The lower cylinder (6) has an clearance groove (19) on its upper side and a second annular groove (20) connected to multiple sliding grooves (8) on its upper side. Multiple arc-shaped toothed plates (21) are provided at the bottom of the second annular groove (20) and on the lower side of the control ring (7).

5. A temperature transmitter that is easy to install according to claim 4, characterized in that, The arc-shaped toothed plate (21) is provided with teeth (22), and the longitudinal section of the teeth (22) is a right triangle. The inclined surface of the teeth (22) at the bottom of the second annular groove (20) faces the opposite direction to the inclined surface of the teeth (22) on the lower side of the control ring (7).

6. A temperature transmitter that is easy to install according to claim 1, characterized in that, Two support plates are installed at one end of the slider (9), and a fixed shaft (24) is provided between the two support plates. A one-way rotating wheel (10) is rotated and fitted on the fixed shaft (24), and the one-way rotating wheel (10) is located between the two support plates.

7. A temperature transmitter that is easy to install according to claim 6, characterized in that, The unidirectional wheel (10) has a cavity (25) inside, a pawl ring (26) is installed on the cavity (25), and at least one elastic card (27) is installed on the fixed shaft (24).

8. A temperature transmitter that is easy to install according to claim 1, characterized in that, Multiple threaded holes are provided on the lower side of the upper cylinder (5) and the upper side of the lower cylinder (6). Both ends of the connecting rod (28) are threaded, the helices at both ends of the connecting rod (28) are opposite, and a flat part is provided in the middle of the connecting rod (28).

9. A temperature transmitter that is easy to install according to claim 1, characterized in that, The slider (9) includes a sliding part (31) and a movable part (29). The sliding part (31) is provided with a sliding hole. A portion of the movable part (29) is slidably connected to the sliding hole. The sliding direction of the movable part (29) intersects with the axis of the lower cylinder (6). A helical spring (30) for pushing the movable part (29) to slide is provided in the sliding hole. The one-way rotating wheel (10) is connected to the free end of the movable part.

10. A temperature transmitter that is easy to install according to claim 1, characterized in that, The upper cylinder (5), lower cylinder (6) and control ring (7) are made of plastic, while the connecting rod (28) and drive rod (11) are made of metal.

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