Temperature sensor mounting device
The fixing mechanism of double-ring sealing ring and plum blossom thread seat solves the problem of inconvenient installation of flange-type temperature sensors in confined spaces, realizes fast and tight flange connection, and simplifies the installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李彬
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-12
AI Technical Summary
Installing flange-type temperature sensors in confined spaces is inconvenient with wrenches and requires multiple adjustments, increasing installation complexity and wasting time.
The fixing mechanism adopts a double-ring seal and a plum blossom thread seat. The movable rod drives the threaded rod to rotate, and the sleeve moves axially along the threaded rod, compressing the seal ring to deform and forming a sealing pressure. The plum blossom thread seat provides pre-tightening force to ensure a tight flange connection.
It reduces the need for tools, improves installation efficiency, is suitable for rapid installation in confined spaces, and reduces the workload of staff.
Smart Images

Figure CN224231107U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of temperature sensor installation technology, specifically a temperature sensor installation device. Background Technology
[0002] In current industrial applications, flange-type temperature sensors are widely used in various equipment that require temperature monitoring. A flange-type temperature sensor is usually composed of a temperature probe, a connecting flange, and mounting bolts and nuts. During installation, the flange needs to be aligned with another set of flanges on the equipment being measured and then tightened with bolts and nuts. This traditional installation method has high stability and strong mechanical connection, which can effectively ensure the stability and reliability of the temperature sensor during operation. It is especially suitable for large equipment or places with ample space.
[0003] However, as modern industrial equipment demands increasingly compact spatial layouts, limited installation space has become a significant problem. Especially in places with limited space or inconvenient installation locations, workers often face constraints when installing flange-type temperature sensors. They need to use tools such as wrenches to tighten the bolts. However, due to space constraints, using a wrench is often very inconvenient and may require multiple adjustments to the position. This not only increases the complexity of the installation process but may also lead to wasted time.
[0004] Therefore, this application provides a temperature sensor mounting device to solve the above-mentioned problems. Utility Model Content
[0005] This application provides a temperature sensor installation device, which aims to solve the problem mentioned in the background art that when workers install flange-type temperature sensors, they are often limited by the narrow space, making it very inconvenient to use a wrench, and may need to adjust the position multiple times.
[0006] To achieve the above objectives, this application provides the following technical solution: a temperature sensor mounting device, comprising a temperature sensor body and a protective tube fixedly mounted on the temperature sensor body, wherein a first flange is fixedly mounted on the protective tube, a second flange is provided at the lower end of the protective tube, and a connecting pipe is threadedly connected to the lower end of the second flange.
[0007] The second flange is provided with a fixing mechanism that is connected to the first flange;
[0008] The fixing mechanism includes a movable rod arranged in a ring on the second flange and a threaded rod fixedly installed on the movable rod. A sleeve that is fastened to the first flange is threaded onto the threaded rod. A pendant threaded seat is fixedly installed on the sleeve. The pendant threaded seat is threadedly fitted onto the threaded rod. A double-ring sealing ring is provided at the lower end of the first flange. A sealing groove for the double-ring sealing ring to be inserted is provided at the upper end of the second flange. Both the first flange and the second flange are made of high-strength, corrosion-resistant stainless steel.
[0009] Preferably, both the second flange and the first flange have movable openings corresponding to the movable rod. The movable rod is located at the movable opening and is rotatably connected to the second flange. Both ends of the movable rod are fixedly installed with limiting rings that are rotatably connected to the second flange. During installation, the position of the threaded rod can be adjusted by rotating the movable rod. When not installed, the threaded rod is located below the second flange.
[0010] Preferably, a second protective sleeve is fixedly installed at the upper end of the plum blossom thread seat, and a first protective sleeve is fixedly installed at the lower end of the sleeve seat. Both the first protective sleeve and the second protective sleeve are sleeved on the threaded rod.
[0011] Preferably, the lower end of the sleeve is provided with a plurality of grooves in a ring shape, which increases the friction intensity and improves the grip by creating the grooves.
[0012] Preferably, a fixing ring is welded to the outside of the second protective sleeve, and several limiting rings are distributed in a ring on the fixing ring.
[0013] In this temperature sensor mounting device, the first flange and the second flange achieve initial sealing by inserting a double-ring sealing ring into the sealing groove. The movable rod of the fixing mechanism drives the threaded rod to rotate, and the sleeve moves axially along the threaded rod, squeezing the first flange and compressing the double-ring sealing ring to form a sealing pressure. The threaded engagement between the plum-thread seat and the threaded rod provides pre-tightening force to ensure a tight flange connection. This fixing method reduces the need for tools, speeds up the overall installation efficiency, and allows for rapid installation in confined spaces, reducing the workload of workers. Attached Figure Description
[0014] Figure 1 A schematic diagram of a temperature sensor mounting device;
[0015] Figure 2 This is a schematic diagram of the structure of the first flange;
[0016] Figure 3 This is a schematic diagram of the second flange.
[0017] Figure 4This is a schematic diagram of the fixed ring structure;
[0018] Figure 5 This is a schematic diagram of the structure of the first protective sleeve.
[0019] In the picture:
[0020] 1. Temperature sensor body; 2. Protective tube; 3. First flange; 31. Double ring sealing ring; 4. Connecting pipe; 5. Second flange; 51. Sealing groove; 6. Fixing mechanism; 61. Movable rod; 611. Limiting ring; 62. Threaded rod; 63. Sleeve; 631. Groove; 632. First protective sleeve; 64. Plum thread seat; 65. Second protective sleeve; 66. Fixing ring; 661. Arc groove; 7. Movable port. Detailed Implementation
[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0022] This embodiment provides a temperature sensor mounting device, such as... Figure 1-5 As shown, the temperature sensor mounting device includes a temperature sensor body 1 and a protective tube 2 fixedly mounted on the temperature sensor body 1. A first flange 3 is fixedly mounted on the protective tube 2, and a second flange 5 is provided at the lower end of the protective tube 2. A connecting pipe 4 is threadedly connected to the lower end of the second flange 5.
[0023] The second flange 5 is provided with a fixing mechanism 6 that is connected to the first flange 3;
[0024] The fixing mechanism 6 includes a movable rod 61 arranged in a ring on the second flange 5 and a threaded rod 62 fixedly installed on the movable rod 61. A sleeve 63 that is fastened to the first flange 3 is threaded onto the threaded rod 62. A plum-threaded seat 64 is fixedly installed on the sleeve 63. The plum-threaded seat 64 is threadedly fitted with the threaded rod 62. A double-ring sealing ring 31 is provided at the lower end of the first flange 3. A sealing groove 51 for the double-ring sealing ring 31 to be inserted is provided at the upper end of the second flange 5.
[0025] Specifically, the first flange 3 and the second flange 5 achieve initial sealing by inserting a double-ring sealing ring 31 into the sealing groove 51. The movable rod 61 of the fixing mechanism 6 drives the threaded rod 62 to rotate, and the sleeve 63 moves axially along the threaded rod 62, squeezing the first flange 3 and compressing the double-ring sealing ring 31 to form a sealing pressure. The threaded engagement between the plum blossom thread seat 64 and the threaded rod 62 provides pre-tightening force to ensure a tight flange connection. The fixing device mainly consists of the first flange 3 and the second flange 5. The first flange 3 and the protective pipe 2 are an integral structure, while the second flange 5 is an independent structural part. During installation, it is only necessary to thread the second flange 5 onto the predetermined connecting pipe 4. The double-ring sealing ring 31 is made of fluororubber, which has high temperature resistance properties. The double sealing structure prevents leakage. The plum blossom thread seat 64 adopts a hexagonal cross-section with chamfers, which can be rotated directly by hand by the operator.
[0026] Both the second flange 5 and the first flange 3 have movable openings 7 corresponding to the movable rod 61. The movable rod 61 is located at the movable opening 7 and is rotatably connected to the second flange 5. Both ends of the movable rod 61 are fixedly installed with limiting rings 611 that are rotatably connected to the second flange 5.
[0027] More specifically, the movable rod 61 rotates within the movable opening 7 via the limiting ring 611, causing the threaded rod 62 to rotate. The gap between the outer diameter of the limiting ring 611 and the inner diameter of the movable opening 7 is ≤0.1mm, preventing the movable rod 61 from moving axially and ensuring the perpendicularity of the threaded rod 62.
[0028] A second protective sleeve 65 is fixedly installed on the upper end of the plum blossom thread seat 64, and a first protective sleeve 632 is fixedly installed on the lower end of the sleeve seat 63. Both the first protective sleeve 632 and the second protective sleeve 65 are sleeved on the threaded rod 62.
[0029] Furthermore, the first protective sleeve 632 and the second protective sleeve 65 are fitted onto the outside of the threaded rod 62 to protect the threaded rod 62, blocking media splashing and isolating external dust.
[0030] The lower end of the sleeve 63 has several grooves 631 arranged in a ring shape.
[0031] It should be noted that the groove 631 at the lower end of the sleeve 63 increases the contact area with the first flange 3, dispersing local stress. At the same time, the groove 631 can be filled with sealant to enhance the gripping effect.
[0032] The second protective sleeve 65 has a fixing ring 66 welded to its outside, and several limiting rings 611 are distributed in a ring on the fixing ring 66.
[0033] It is worth mentioning that the fixing ring 66 is welded to the outside of the second protective sleeve 65 and is linked with the movable rod 61 through the annularly distributed arc groove 661. When the staff manually rotates the plum blossom thread seat 64 to tighten it, a round rod-shaped tool that matches the arc groove 661 can be used to rotate and reinforce it.
[0034] In use, the first flange 3 and the second flange 5 achieve initial sealing by inserting the double ring sealing ring 31 into the sealing groove 51. The movable rod 61 of the fixing mechanism 6 drives the threaded rod 62 to rotate, and the sleeve 63 moves axially along the threaded rod 62, squeezing the first flange 3 and compressing the double ring sealing ring 31 to form a sealing pressure. The threaded engagement between the plum blossom thread seat 64 and the threaded rod 62 provides pre-tightening force to ensure a tight flange connection. This fixing method reduces the need for tools, speeds up the overall installation efficiency, and allows for rapid installation in confined spaces, reducing the workload of workers.
[0035] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A temperature sensor mounting device, comprising a temperature sensor body (1) and a protective tube (2) fixedly mounted on the temperature sensor body (1), wherein a first flange (3) is fixedly mounted on the protective tube (2), and a second flange (5) is provided at the lower end of the protective tube (2), wherein a connecting tube (4) is threadedly connected to the lower end of the second flange (5). Its features are: The second flange (5) is provided with a fixing mechanism (6) that is connected to the first flange (3); The fixing mechanism (6) includes a movable rod (61) arranged in a ring on the second flange (5) and a threaded rod (62) fixedly installed on the movable rod (61). The threaded rod (62) is threaded with a sleeve (63) that is fastened to the first flange (3). A plum blossom threaded seat (64) is fixedly installed on the sleeve (63). The plum blossom threaded seat (64) is threaded with the threaded rod (62). A double ring sealing ring (31) is provided at the lower end of the first flange (3). A sealing groove (51) for the double ring sealing ring (31) to be inserted is provided at the upper end of the second flange (5).
2. The temperature sensor mounting device according to claim 1, characterized in that: Both the second flange (5) and the first flange (3) have movable openings (7) corresponding to the movable rod (61). The movable rod (61) is located at the movable opening (7) and is rotatably connected to the second flange (5). Both ends of the movable rod (61) are fixedly installed with limiting rings (611) that are rotatably connected to the second flange (5).
3. The temperature sensor mounting device according to claim 2, characterized in that: The upper end of the plum blossom thread seat (64) is fixedly installed with a second protective sleeve (65), and the lower end of the sleeve seat (63) is fixedly installed with a first protective sleeve (632). Both the first protective sleeve (632) and the second protective sleeve (65) are sleeved on the threaded rod (62).
4. The temperature sensor mounting device according to claim 3, characterized in that: The lower end of the sleeve (63) is provided with several grooves (631) in a ring shape.
5. The temperature sensor mounting device according to claim 4, characterized in that: The second protective sleeve (65) is welded to the outside with a fixing ring (66), and a number of limiting rings (611) are distributed in a ring on the fixing ring (66).