Universal tightening device for pressure sensor
By designing a universal tightening device for pressure sensors, a motor-driven gear and threaded rod system is used to fix the top of the pressure sensor. The combination of a limit rod and a spring solves the problem of unstable fixing in traditional tightening methods, achieving a more efficient and safer tightening process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LINGYUAN EQUIP & ENG LTD
- Filing Date
- 2025-02-21
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional pressure sensor tightening methods result in unstable fixation, spring deformation causes top instability, and the tightening process requires considerable force, posing a safety hazard.
A universal tightening device for pressure sensors was designed, including components such as a base column, a base shell, a U-shaped frame, a rotating frame, a gear, a threaded rod, a limiting plate, a movable sleeve, and a protective pad. The gear is driven by a motor to rotate, which in turn drives the threaded rod to rotate, fixing the top of the pressure sensor. The pressure sensor is stably fixed by the cooperation of the limiting rod and the spring.
This improves the stability of the pressure sensor, avoids instability caused by spring deformation, and enhances tightening efficiency and safety.
Smart Images
Figure CN224202613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure sensor technology, and more specifically, to a universal tightening device for pressure sensors. Background Technology
[0002] A pressure sensor is a precise and powerful device whose core function is to sense and respond to pressure signals. Specifically, it can detect pressure changes from various environments or systems, which may originate from the pressure of gases, liquids, or solids. Once these pressure signals are sensed, they are converted from non-electrical pressure signals into electrical signals.
[0003] The pressure sensor consists of internal components and an external base, tightened together. It operates at high pressure, and to prevent leakage, tightening the base requires significant torque. The traditional tightening method involves applying downward force to the top of the pressure sensor using a spring and a fixing plate. Pressing the sensor down from the top prevents scratches or accidental injury to the operator due to excessive force. Then, a bottom-tightening mechanism tightens the bottom of the pressure sensor. Tightening the bottom requires considerable force, and the continuous twisting of the bottom causes the top to move downwards. However, because the spring is prone to deformation under force, the fixation of the top of the pressure sensor is unstable. Therefore, improvements and optimizations are needed. Utility Model Content
[0004] To overcome the shortcomings of the existing technology, this utility model provides a universal tightening device for pressure sensors, which has the advantages of stable fixing and easy tightening.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a universal tightening device for pressure sensors, comprising a base column, a base shell, and a U-shaped frame, wherein the base shell is fixedly disposed above the base column, and the U-shaped frame is fixedly disposed above the base shell;
[0006] A rotating frame is rotatably mounted on top of the U-shaped frame. A gear two is fixedly mounted on top of the rotating frame. A threaded rod is fixedly mounted on the bottom of the rotating frame. The bottom of the threaded rod passes through the top of the U-shaped frame and is rotatably mounted with a limiting plate. The limiting plate is fixedly connected to the bottom shell. A threaded sleeve is threaded onto the outer surface of the threaded rod. A movable sleeve is fixedly mounted on the bottom of the threaded sleeve. The bottom of the movable sleeve extends into the interior of the bottom shell. A protective pad is fixedly mounted on the bottom of the movable sleeve. The movable sleeve is movably connected to the limiting plate. A drive mechanism is fixedly mounted on top of the U-shaped frame.
[0007] As a preferred embodiment of this utility model, a heat dissipation bracket is fixedly installed on the bottom of the inner side of the bottom shell, a partition is fixedly installed above the heat dissipation bracket, an outer shell is fixedly installed between the partition and one side of the inner side of the bottom shell, a spring is fixedly installed on one side of the inner side of the outer shell, a baffle is fixedly installed on one end of the spring, a connecting block is fixedly installed on one side of the baffle, one end of the connecting block passes through the left and right sides of the partition and is fixedly installed with a connecting plate, two ends of one side of the connecting plate are fixedly installed with inserts, a limit rod is fixedly installed on the other side of the baffle, one end of the limit rod extends to the outside of the outer shell and passes through one side of the bottom shell.
[0008] As a preferred embodiment of this utility model, a torque limiter is rotatably mounted above the heat sink, a fixed base is fixedly mounted above the torque limiter, a pressure sensor is movably mounted above the fixed base, and one end of the plug extends into the interior of the pressure sensor and is movably connected to the pressure sensor.
[0009] As a preferred technical solution of this utility model, a second motor is fixedly installed on the bottom of the inner side of the bottom shell, and a connecting frame is fixedly installed above the transmission shaft of the second motor. One end of the connecting frame extends to the top of the heat sink and is fixedly connected to the torque limiter.
[0010] As a preferred technical solution of this utility model, the driving mechanism includes a motor fixedly installed above the U-shaped frame, a gear fixedly installed above the transmission shaft of the motor, the gear meshing with the gear, a protective cover fixedly installed above the U-shaped frame, and heat dissipation holes opened on the side of the protective cover.
[0011] As a preferred technical solution of this utility model, a controller is fixedly installed on one side of the bottom shell, and the controller is electrically connected to motor one, motor two and torque limiter.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model uses a controller to start a motor that drives a gear to rotate, which in turn drives a rotating frame to rotate. The rotation of the rotating frame drives the rotation of the threaded rod, which in turn drives the threaded sleeve, the moving sleeve, and the protective pad to move. The protective pad fixes the top of the pressure sensor. Compared with traditional devices, this device improves the stability of the fixation by fixing the top of the pressure sensor, avoiding instability caused by spring deformation, thereby improving the working efficiency of the device and the efficiency of fixing the pressure sensor.
[0014] 2. This utility model uses a rearward limiting rod to move the baffle, which compresses the spring and causes the connecting block and connecting plate to move backward, then moves the insert block backward, placing the pressure sensor on the fixed base. Releasing the limiting rod allows the spring to drive the insert block into the pressure sensor. Compared to traditional devices, this device, by limiting the position of the pressure sensor, achieves better fixation, reduces the probability of the pressure sensor's top rotating, and thus improves fixation efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the protective cover of this utility model;
[0017] Figure 3 This utility model Figure 2 A magnified view of part A;
[0018] Figure 4 This is a schematic diagram of the internal structure of the outer shell of this utility model;
[0019] Figure 5 This utility model Figure 4 Enlarged view of a portion of point B in the middle;
[0020] Figure 6 This is a schematic diagram of the bottom structure of the heat sink bracket of this utility model;
[0021] Figure 7 This is a schematic diagram of the connection structure between the movable sleeve and the limiting plate of this utility model.
[0022] In the diagram: 1. Base column; 2. Base shell; 3. U-shaped frame; 4. Protective cover; 5. Heat dissipation hole; 6. Heat dissipation frame; 7. Motor 1; 8. Gear 1; 9. Gear 2; 10. Controller; 11. Rotating frame; 12. Threaded rod; 13. Threaded sleeve; 14. Moving sleeve; 15. Protective pad; 16. Limiting plate; 17. Partition plate; 18. Outer shell; 19. Spring; 20. Baffle; 21. Limiting rod; 22. Connecting block; 23. Connecting plate; 24. Insert block; 25. Motor 2; 26. Connecting frame; 27. Torque limiter; 28. Fixed base; 29. Pressure sensor. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1 to 7 As shown, this utility model provides a universal tightening device for pressure sensors, including a base column 1, a base shell 2, and a U-shaped frame 3. The base shell 2 is fixedly disposed above the base column 1, and the U-shaped frame 3 is fixedly disposed above the base shell 2.
[0025] A rotating frame 11 is rotatably mounted on the top of the U-shaped frame 3. A gear 2 9 is fixedly mounted on the top of the rotating frame 11. A threaded rod 12 is fixedly mounted on the bottom of the rotating frame 11. The bottom of the threaded rod 12 passes through the top of the U-shaped frame 3 and is rotatably mounted with a limiting plate 16. The limiting plate 16 is fixedly connected to the bottom shell 2. A threaded sleeve 13 is threaded onto the outer surface of the threaded rod 12. A movable sleeve 14 is fixedly mounted on the bottom of the threaded sleeve 13. The bottom of the movable sleeve 14 extends into the interior of the bottom shell 2. A protective pad 15 is fixedly mounted on the bottom of the movable sleeve 14. The movable sleeve 14 is movably connected to the limiting plate 16. A drive mechanism is fixedly mounted on the top of the U-shaped frame 3.
[0026] When the operator uses the device, they first start the motor 7 via the controller 10 to drive the gear 8 to rotate. When the gear 8 rotates, it meshes with the gear 9, causing the gear 9 to rotate as the gear 8 rotates. When the gear 9 rotates, it drives the rotating frame 11 to rotate. When the rotating frame 11 rotates, it drives the threaded rod 12 to rotate. When the threaded rod 12 rotates, it moves because the threaded sleeve 13 and the threaded rod 12 are connected by threads. When the threaded rod 12 rotates, it drives the threaded sleeve 13 to move. When the threaded sleeve 13 moves, it drives the moving sleeve 14 to move. When the moving sleeve 14 moves, it drives the protective pad 15 to move, thereby fixing the top of the pressure sensor 29.
[0027] The controller 10 starts the motor 7, which drives the gear 8 to rotate, thereby driving the rotating frame 11 to rotate. The rotation of the rotating frame 11 drives the threaded rod 12 to rotate, which in turn drives the threaded sleeve 13, the moving sleeve 14 and the protective pad 15 to move. The protective pad 15 fixes the top of the pressure sensor 29. Compared with the traditional device, this device can improve the stability of the fixation by fixing the top of the pressure sensor 29 and avoid the instability caused by the deformation of the spring, thereby improving the working efficiency of the device and the efficiency of fixing the pressure sensor 29.
[0028] The bottom of the inner side of the bottom shell 2 is fixedly installed with a heat sink 6. A partition 17 is fixedly installed above the heat sink 6. An outer shell 18 is fixedly installed between the partition 17 and one side of the bottom shell 2. A spring 19 is fixedly installed on one side of the inner side of the outer shell 18. A baffle 20 is fixedly installed on one end of the spring 19. A connecting block 22 is fixedly installed on one side of the baffle 20. One end of the connecting block 22 passes through the left and right sides of the partition 17 and is fixedly installed with a connecting plate 23. Insert blocks 24 are fixedly installed on both ends of one side of the connecting plate 23. A limit rod 21 is fixedly installed on the other side of the baffle 20. One end of the limit rod 21 extends to the outside of the outer shell 18 and passes through one side of the bottom shell 2.
[0029] When the operator uses the device, they first move the limiting rod 21 backward. When the limiting rod 21 moves backward, it will cause the baffle 20 to move backward. As the baffle 20 moves backward, the spring 19 will be compressed. As the spring 19 is compressed, the baffle 20 moves backward, which will cause the connecting block 22 to move backward. When the connecting block 22 moves backward, the connecting plate 23 will move backward. The backward movement of the connecting plate 23 will cause the insert block 24 to move backward. At this time, the pressure sensor 29 is placed above the fixed base 28. Then the limiting rod 21 is released, and the spring 19 will drive the insert block 24 into the interior of the pressure sensor 29.
[0030] By moving the baffle 20 by the rearward limiting rod 21, the spring 19 is compressed, causing the connecting block 22 and the connecting plate 23 to move backward, and then the insert block 24 to move backward, placing the pressure sensor 29 on the fixed base 28. Then the limiting rod 21 is released, and the spring 19 will drive the insert block 24 into the interior of the pressure sensor 29. Compared with the traditional device, this device has a better fixing effect on the pressure sensor 29 by limiting the position of the pressure sensor 29, which can reduce the probability of the top of the pressure sensor 29 rotating, thereby improving the fixing efficiency.
[0031] Among them, a torque limiter 27 is rotatably mounted on the top of the heat sink 6, a fixed base 28 is fixedly mounted on the top of the torque limiter 27, a pressure sensor 29 is movably mounted on the top of the fixed base 28, and one end of the plug 24 extends into the interior of the pressure sensor 29 and is movably connected to the pressure sensor 29.
[0032] The torque of the pressure sensor 29 is detected by the design of the torque limiter 27 and the mounting base 28.
[0033] Among them, a second motor 25 is fixedly installed on the bottom of the inner side of the bottom shell 2, and a connecting bracket 26 is fixedly installed above the drive shaft of the second motor 25. One end of the connecting bracket 26 extends to the top of the heat sink 6 and is fixedly connected to the torque limiter 27.
[0034] The controller 10 starts the motor 25, which drives the connecting frame 26 to rotate. The rotation of the connecting frame 26 then drives the torque limiter 27 and the fixed seat 28 to rotate.
[0035] The drive mechanism includes a motor 7 fixedly mounted on the top of the U-shaped frame 3. A gear 8 is fixedly mounted on the top of the drive shaft of the motor 7. The gear 8 meshes with the gear 9. A protective cover 4 is fixedly mounted on the top of the U-shaped frame 3. Heat dissipation holes 5 are provided on the side of the protective cover 4.
[0036] The controller 10 starts motor 7, which drives gear 8 to rotate. Gear 8 then drives gear 9 to rotate. The protective cover 4 protects motor 7.
[0037] The bottom shell 2 has a controller 10 fixedly installed on one side. The controller 10 is electrically connected to the first motor 7, the second motor 25 and the torque limiter 27.
[0038] The controller 10 is designed to protect the operation of the device and improve the safety of device operation.
[0039] Working principle and usage process of this utility model:
[0040] When the operator uses the device, they first start the motor 7 via the controller 10 to drive the gear 8 to rotate. When the gear 8 rotates, it meshes with the gear 9, causing the gear 9 to rotate as the gear 8 rotates. When the gear 9 rotates, it drives the rotating frame 11 to rotate. When the rotating frame 11 rotates, it drives the threaded rod 12 to rotate. When the threaded rod 12 rotates, it moves because the threaded sleeve 13 and the threaded rod 12 are connected by threads. When the threaded rod 12 rotates, it drives the threaded sleeve 13 to move. When the threaded sleeve 13 moves, it drives the moving sleeve 14 to move. When the moving sleeve 14 moves, it drives the protective pad 15 to move, thereby fixing the top of the pressure sensor 29.
[0041] When the operator uses the device, they first move the limiting rod 21 backward. When the limiting rod 21 moves backward, it will cause the baffle 20 to move backward. As the baffle 20 moves backward, the spring 19 will be compressed. As the spring 19 is compressed, the baffle 20 moves backward, which will cause the connecting block 22 to move backward. When the connecting block 22 moves backward, the connecting plate 23 will move backward. The backward movement of the connecting plate 23 will cause the insert block 24 to move backward. At this time, the pressure sensor 29 is placed above the fixed base 28. Then the limiting rod 21 is released, and the spring 19 will drive the insert block 24 into the interior of the pressure sensor 29.
[0042] In power tools, torque controllers often operate based on the principle of current control. The output torque of a motor is proportional to the current. The torque controller monitors the current when the motor is running, and when the current reaches a preset threshold, the system takes measures to limit the further increase of the current, thereby limiting the torque output of the motor.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A universal tightening device for pressure sensors, comprising a base column (1), a base shell (2), and a U-shaped frame (3), characterized in that: The bottom shell (2) is fixedly installed above the bottom column (1), and the U-shaped frame (3) is fixedly installed above the bottom shell (2); A rotating frame (11) is rotatably mounted on the top of the U-shaped frame (3). A gear (9) is fixedly mounted on the top of the rotating frame (11). A threaded rod (12) is fixedly mounted on the bottom of the rotating frame (11). The bottom of the threaded rod (12) passes through the top of the U-shaped frame (3) and is rotatably mounted with a limiting plate (16). The limiting plate (16) is fixedly connected to the bottom shell (2). A threaded sleeve (13) is threaded onto the outer surface of the threaded rod (12). A movable sleeve (14) is fixedly mounted on the bottom of the threaded sleeve (13). The bottom of the movable sleeve (14) extends into the interior of the bottom shell (2). A protective pad (15) is fixedly mounted on the bottom of the movable sleeve (14). The movable sleeve (14) is movably connected to the limiting plate (16). A driving mechanism is fixedly mounted on the top of the U-shaped frame (3).
2. The universal tightening device for pressure sensors according to claim 1, characterized in that: A heat sink (6) is fixedly installed on the bottom of the inner side of the bottom shell (2). A partition (17) is fixedly installed above the heat sink (6). An outer shell (18) is fixedly installed between the partition (17) and one side of the bottom shell (2). A spring (19) is fixedly installed on one side of the inner shell (18). A baffle (20) is fixedly installed at one end of the spring (19). A connecting block (22) is fixedly installed on one side of the baffle (20). One end of the connecting block (22) passes through the left and right sides of the partition (17) and is fixedly installed with a connecting plate (23). Insert blocks (24) are fixedly installed at both ends of one side of the connecting plate (23). A limit rod (21) is fixedly installed on the other side of the baffle (20). One end of the limit rod (21) extends to the outside of the outer shell (18) and passes through one side of the bottom shell (2).
3. A universal tightening device for pressure sensors according to claim 2, characterized in that: A torque limiter (27) is rotatably mounted above the heat sink (6), a fixed base (28) is fixedly mounted above the torque limiter (27), a pressure sensor (29) is movably mounted above the fixed base (28), and one end of the plug (24) extends into the interior of the pressure sensor (29) and is movably connected to the pressure sensor (29).
4. The universal tightening device for pressure sensors according to claim 1, characterized in that: A second motor (25) is fixedly installed on the bottom of the inner side of the bottom shell (2). A connecting frame (26) is fixedly installed above the drive shaft of the second motor (25). One end of the connecting frame (26) extends to the top of the heat sink (6) and is fixedly connected to the torque limiter (27).
5. A universal tightening device for pressure sensors according to claim 1, characterized in that: The drive mechanism includes a motor (7) fixedly mounted above the U-shaped frame (3), a gear (8) fixedly mounted above the drive shaft of the motor (7), the gear (8) meshing with the gear (9), a protective cover (4) fixedly mounted above the U-shaped frame (3), and heat dissipation holes (5) provided on the side of the protective cover (4).
6. A universal tightening device for pressure sensors according to claim 1, characterized in that: A controller (10) is fixedly installed on one side of the bottom shell (2), and the controller (10) is electrically connected to the first motor (7), the second motor (25) and the torque limiter (27).