Sealing tensiometer for complex environment

Abstract

The utility model is suitable for measuring technical field provides a kind of sealing tensiometer for complex environment, including: shell assembly, including cylinder and end cover, the cylinder both ends are provided with first opening and second opening, the end cover is sealed the first opening by first sealing element, the third opening is provided on the end cover;Pull rod assembly, including first pull rod, tension monitoring module and second pull rod that are sequentially arranged in same tensile direction, the first pull rod the tension monitoring module and the second pull rod are arranged in the cylinder interior, the first pull rod and the second pull rod are worn out the cylinder, the first pull rod is sealed connection with the second opening by second sealing element, the second pull rod is sealed connection with the third opening by third sealing element.The utility model solves the problem that traditional tensiometer is poor in sealing, is easily influenced by severe environment, improves the use reliability of tensiometer in humid, dusty scene.

Description

Technical Field

[0001] This utility model belongs to the field of measurement technology, and in particular relates to a sealed tensile gauge for complex environments. Background Technology

[0002] In engineering testing, industrial production, and scientific research, the tensile gauge is a commonly used instrument for measuring tensile force. It is an indispensable basic measuring tool in modern industry and scientific research. From simple and robust mechanical pointer types to high-precision, intelligent electronic digital display types, its diverse range meets the needs of different scenarios.

[0003] However, traditional tensile testers have certain limitations. When used in harsh environments such as humid or dusty conditions, insufficient sealing allows external moisture and dust to easily penetrate the internal structure, leading to short circuits and corrosion of mechanical parts, which seriously affects the accuracy and service life of the tensile tester. Summary of the Invention

[0004] The purpose of this utility model embodiment is to provide a sealed tensile tester for complex environments, aiming to solve the problem of insufficient sealing performance of existing tensile testers.

[0005] This utility model embodiment is implemented as follows: a sealing tensile tester for complex environments, the sealing tensile tester for complex environments comprising: A housing assembly includes a cylinder and an end cap. The cylinder has a first opening and a second opening at both ends. The end cap seals the first opening with a first sealing element and has a third opening. The tie rod assembly includes a first tie rod, a tension monitoring module, and a second tie rod arranged sequentially in the same tension direction. The first tie rod, the tension monitoring module, and the second tie rod are disposed inside the cylinder. The first tie rod and the second tie rod extend out of the cylinder. The first tie rod is sealed to the second opening through a second seal, and the second tie rod is sealed to the third opening through a third seal.

[0006] Furthermore, insulating sleeves are fitted onto the portion of the first pull rod extending out of the cylinder and the portion of the second pull rod extending out of the end cap.

[0007] Furthermore, the sealed tensile tester for complex environments also includes a battery assembly disposed within the cylinder, the battery assembly comprising: A circuit board is disposed on one side of the tensile monitoring module and is electrically connected to the tensile monitoring module; A battery pack, located on one side of the tensile monitoring module, supplies power to the circuit board. An insulating plate is disposed on the contact surface between the circuit board, the battery pack, and the cylinder.

[0008] Furthermore, the pull rod assembly also includes an insulating washer, which is fitted onto the wiring terminals of the tension monitoring module.

[0009] Furthermore, the battery assembly also includes a charging interface and an aviation plug, which are disposed on the outside of the end cover and sealed by a waterproof cap.

[0010] Furthermore, the cylinder has a pre-reserved mounting slot for the battery pack, the circuit board and the tensile monitoring module, and the slot wall is provided with a hidden wire hole for wiring.

[0011] Furthermore, the tie rod assembly also includes a flange shaft and an insulating flange plate. One end of the flange shaft is fixedly connected to the tension monitoring module, and the other end is fixedly connected to the first tie rod. The insulating flange plate is disposed between the first tie rod and the flange shaft.

[0012] Furthermore, the tie rod assembly also includes a pad, which is disposed on the tension transmission path of the first tie rod and / or the second tie rod to distribute the tension load.

[0013] Furthermore, the tensile force monitoring module includes: A tension sensor, one end of which is fixedly connected to the flange shaft, and the other end of which is fixedly connected to the second pull rod; The data processing unit is used to process the electrical signals from the tension sensor. The wireless transmission unit is used to transmit the processed tensile data to the outside in real time.

[0014] Furthermore, the sealing tensile tester for complex environments also includes a power display module, which comprises: A display panel is located on the outside of the end cap; A transparent sealing plate is disposed on the outside of the end cap, covering the display panel.

[0015] This utility model provides a sealed tensile tester for complex environments, which has a detachable housing structure consisting of a cylinder and an end cap, with a pull rod assembly disposed therein. A first seal, a second seal, and a third seal are provided at each connection part, which solves the problems of poor sealing performance and susceptibility to harsh environments in traditional tensile testers, and improves the reliability of the tensile tester in humid and dusty environments. Attached Figure Description

[0016] Figure 1 A three-dimensional sealing tensile tester for complex environments provided by this utility model embodiment Figure 1 ; Figure 2 A three-dimensional sealing tensile tester for complex environments provided by this utility model embodiment Figure 2 ; Figure 3 An exploded view of a sealing tensile gauge for use in complex environments, provided as an embodiment of this utility model; Figure 4 A cross-sectional view of a sealing tensile tester for complex environments provided in this embodiment of the present invention. Figure 1 ; Figure 5 A cross-sectional view of a sealing tensile tester for complex environments provided in this embodiment of the present invention. Figure 2 ; 1. Tension sensor; 2. Insulating washer; 3. Flange shaft; 4. Insulating flange; 5. First pull rod; 7. Second screw; 8. Second pull rod; 9. Pad; 10. Insulating plate; 11. Battery pack; 12. Circuit board; 13. Cylinder; 14. End cap; 15. Third seal; 16. First seal; 17. Insulating sleeve; 18. Power switch; 19. Aviation connector; 20. Display panel; 21. Transparent sealing plate; 22. Waterproof cap; 23. First screw; 24. Second seal. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0018] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0019] Figure 1 and Figure 2 This is a three-dimensional diagram of a sealed tensile tester used in complex environments. Figure 3 This is an exploded view of a sealed tensile tester used in complex environments. Figure 4 and Figure 5 This is a cross-sectional view of a sealed tensile tester used in complex environments.

[0020] like Figure 1-5 As shown, in one embodiment, a sealing tensile tester for complex environments is provided. The sealing tensile tester for complex environments includes: The housing assembly includes a cylinder 13 and an end cap 14. The cylinder 13 has a first opening and a second opening at both ends. The end cap 14 seals the first opening with a first sealing element 16 and has a third opening. The tie rod assembly includes a first tie rod 5, a tension monitoring module, and a second tie rod 8 arranged sequentially in the same tension direction. The first tie rod 5, the tension monitoring module, and the second tie rod 8 are disposed inside the cylinder 13. The first tie rod 5 and the second tie rod 8 extend out of the cylinder 13. The first tie rod 5 is sealed to the second opening through a second seal 24, and the second tie rod 8 is sealed to the third opening through a third seal 15.

[0021] In this embodiment, the cylinder 13 and the end cap 14 form a detachable housing structure, in which the pull rod assembly is disposed. A first seal 16, a second seal 24 and a third seal 15 are provided at each connection part, which solves the problems of poor sealing performance and susceptibility to harsh environments of traditional tensile gauges, and improves the reliability of tensile gauges in humid and dusty environments.

[0022] In this embodiment, "complex environment" is a multi-dimensional concept. It not only refers to harsh natural conditions, but also emphasizes the interplay of multiple adverse factors. During operation, the tensile gauge faces harsh working conditions where multiple adverse external conditions, such as physical, chemical, and mechanical factors, overlap and work together. These conditions typically manifest as the simultaneous or alternating presence of factors such as high humidity, dust, and vibration, posing a comprehensive challenge to the equipment's sealing performance, durability, and power supply stability.

[0023] In this embodiment, the cylinder 13 serves as the main support and internal component housing for the tension gauge, and its wall thickness is adapted to the water pressure and impact resistance requirements of a water-rich environment. The term "cylindrical" in cylinder 13 can refer to any tubular structure, but the key characteristic of "cylindrical" is its hollow, uniform cross-sectional shape, and longitudinal extension; it is not limited to a circular cross-section, but can also be square, rhomboid, or irregular in shape. As a preferred option, cylinder 13 can be a cylindrical structure welded from a high-strength alloy material. The cylinder 13 has pre-reserved mounting slots for the battery pack 11, circuit board 12, and tension sensor 1. The slot walls have concealed wiring holes to prevent exposed wiring from getting damp and to maintain a clean internal structure. The rear end of cylinder 13 is detachably connected to end cap 14 via a first screw 23, which can be a 04B0301 screw.

[0024] In this embodiment, the tie rod assembly is the core of the tension transmission, such as... Figure 3As shown, the assembly includes a first pull rod 5, a flange shaft 3, an insulating flange 4, a tension sensor 1, and a second pull rod 8, all arranged sequentially in the same tensile direction. One end of the flange shaft 3 is fixedly connected to the tension sensor 1, and the other end is fixedly connected to the first pull rod 5. The insulating flange 4 is disposed between the first pull rod 5 and the flange shaft 3. The first pull rod 5 serves as the tensile input end for the external measured object, and the second pull rod 8 serves as the tensile output or feedback end. The two work together to achieve stable transmission of the measured tensile force. One end of the first pull rod 5 is machined with a threaded interface, hook, or round hole for connecting the measured object, and the other end engages with the second opening at the front end of the cylinder 13 through the flange shaft 3 and the insulating flange 4. Specifically, the insulating flange 4 is made of water-resistant insulating plastic and is clamped between the flange shaft 3 and the cylinder 13, achieving both electrical insulation between the first pull rod 5 and the cylinder 13 and improving sealing performance through precise contact of the flange surfaces. The pull rod assembly also includes an insulating washer 2, which is fitted onto the terminal of the tension sensor 1.

[0025] In addition, such as Figure 3 As shown, the pull rod assembly also includes a pad 9, which is disposed on the tension transmission path of the first pull rod 5 and / or the second pull rod 8 to distribute the tension load. The pad 9 can be a circular metal pad, fixed between the first pull rod 5 and the tension sensor 1, with a diameter larger than the diameter of the force-bearing surface of the tension sensor 1, to distribute the tension load and prevent local stress overload of the sensor. One end of the second pull rod 8 is connected to the side of the tension sensor 1 away from the pad 9, and the other end extends out of the end cap 14 to form a tension feedback end. An insulating sleeve 17 is fitted at the joint between the extended section and the end cap 14 to provide both insulation and sealing. The portion of the first pull rod 5 extending out of the cylinder 13 can also be provided with a corresponding insulating sleeve 17.

[0026] In this embodiment, the tensile monitoring module includes a tensile sensor 1, a data processing unit, and a wireless transmission unit. One end of the tensile sensor 1 is fixedly connected to the flange shaft 3 via a second screw 7, and the other end is fixedly connected to the second pull rod 8. The data processing unit processes the electrical signal from the tensile sensor 1, and the wireless transmission unit transmits the processed tensile data outward in real time. The second screw 7 can be a 04B0047 screw. The tensile monitoring module integrates sensing, processing, and transmission functions, overcoming the limitations of traditional tensile gauges that do not read data in real time or require external devices. It solves the problem of tensile data not being able to be monitored in real time, effectively meeting the needs of dynamic load testing, long-term continuous monitoring, and other scenarios, and improving the efficiency and accuracy of tensile measurement.

[0027] In this embodiment, as Figure 3As shown, the sealed tensile tester for complex environments also includes a battery assembly. The battery assembly is housed within the cylinder 13 and includes a circuit board 12, a battery pack 11, an insulating plate 10, a charging interface, and an aviation plug 19. The circuit board 12 is located on one side of the tensile monitoring module and is electrically connected to it. The battery pack 11 is located on one side of the tensile monitoring module and supplies power to the circuit board 12. The insulating plate 10 is located on the contact surface between the circuit board 12, the battery pack 11, and the cylinder 13. The charging interface and the aviation plug 19 are located on the outside of the end cap 14 and are sealed to each other by a waterproof cap 22. Most existing tensile testers use disposable batteries, which are cumbersome to replace and pose environmental problems. Therefore, the battery assembly in this embodiment is a rechargeable power supply assembly, built into the housing space of the cylinder 13, supplying power to all electrical components of the tensile tester. This module is equipped with a charging interface, and the charging interface has a sealed protective structure that cooperates with the waterproof cap 22. It can be repeatedly charged via an external power source, replacing traditional disposable batteries.

[0028] In this embodiment, as Figure 3 As shown, the sealed tensile tester for complex environments also includes a power display module. The power display module includes a display panel 20 and a transparent sealing plate 21. The display panel 20 is located on the outside of the end cover 14, and the transparent sealing plate 21 is located on the outside of the end cover 14, covering the display panel 20. Existing tensile testers lack convenient power display, making it difficult to monitor the power supply status in real time. Therefore, in this embodiment, the display panel 20 uses an LED display panel, embedded in the end cover 14 of the cylinder 13, to visually display the remaining power of the power module. This allows users to quickly determine whether the tensile tester needs charging, ensuring stable battery life. This reduces operating costs and environmental pollution, while also solving the problems of inflexible power supply modes and difficulty in monitoring power levels.

[0029] In the above embodiments, the structural strength and sealing design of cylinder 13 directly affect the overall performance of the tensile gauge. Therefore, this embodiment designs three types of sealing structures, each achieving a different sealing effect, which work together to improve the overall sealing performance. These three types of sealing structures are: component mating gap sealing, interface sealing, and internal insulation sealing assistance.

[0030] The first type of seal is a component mating clearance seal, including a first seal 16, a second seal 24, and a third seal 15. All three are sealing rings made of nitrile rubber, which has excellent water resistance and elasticity. For the second seal 24 and the third seal 15, even if the pull rod experiences slight axial displacement due to tension, they can still tightly fit the mating surfaces, blocking the intrusion path of water or impurities.

[0031] The second type of seal is the interface seal, which includes a waterproof cap 22 made of water-resistant and aging-resistant silicone material. It is fitted on the outside of the aviation plug 19 (used for external data transmission) and the charging interface (integrated next to the power switch 18). The interface is waterproof and dustproof by interference fit between the inner sealing flange and the groove on the outer periphery of the interface.

[0032] The third type of seal is an internal insulation seal auxiliary, including an insulating sleeve 17, an insulating plate 10, and an insulating gasket 2. The insulating plate 10 is attached to the contact surface between the battery pack 11, the circuit board 12, and the cylinder 13. The insulating sleeve 17 is fitted over the extended sections of the first pull rod 5 and the second pull rod 8. The insulating gasket 2 can be a PU insulating gasket, which is fitted over the wiring terminals of the tension sensor 1 to avoid signal interference caused by electrical components conducting with the metal cylinder, and to reduce the impact of component vibration on the sealing gap through the buffering effect of the insulating component.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealed tensile tester for complex environments, characterized in that, The sealing tensile tester for complex environments includes: A housing assembly includes a cylinder and an end cap. The cylinder has a first opening and a second opening at both ends. The end cap seals the first opening with a first sealing element and has a third opening. The tie rod assembly includes a first tie rod, a tension monitoring module, and a second tie rod arranged sequentially in the same tension direction. The first tie rod, the tension monitoring module, and the second tie rod are disposed inside the cylinder. The first tie rod and the second tie rod extend out of the cylinder. The first tie rod is sealed to the second opening through a second seal, and the second tie rod is sealed to the third opening through a third seal.

2. The sealing tensile tester for complex environments according to claim 1, characterized in that, Insulating sleeves are fitted onto the portion of the first pull rod extending out of the cylinder and the portion of the second pull rod extending out of the end cap.

3. The sealing tensile tester for complex environments according to claim 2, characterized in that, The pull rod assembly also includes an insulating washer, which is fitted onto the wiring terminals of the tension monitoring module.

4. The sealing tensile tester for complex environments according to claim 1, characterized in that, The sealed tensile tester for complex environments also includes a battery assembly disposed within the cylinder. The battery assembly comprises: A circuit board is disposed on one side of the tensile monitoring module and is electrically connected to the tensile monitoring module; A battery pack, located on one side of the tensile monitoring module, supplies power to the circuit board. An insulating plate is disposed on the contact surface between the circuit board, the battery pack, and the cylinder.

5. The sealing tensile tester for complex environments according to claim 4, characterized in that, The battery assembly also includes a charging interface and an aviation plug, which are disposed on the outside of the end cover and sealed by a waterproof cap.

6. The sealing tensile tester for complex environments according to claim 4, characterized in that, The cylinder has a pre-drilled mounting slot for the battery pack, the circuit board and the tensile monitoring module, and the slot wall has a hidden wire hole for wiring.

7. The sealing tensile tester for complex environments according to claim 1, characterized in that, The tie rod assembly also includes a flange shaft and an insulating flange plate. One end of the flange shaft is fixedly connected to the tension monitoring module, and the other end is fixedly connected to the first tie rod. The insulating flange plate is disposed between the first tie rod and the flange shaft.

8. The sealing tensile tester for complex environments according to claim 7, characterized in that, The tie rod assembly also includes a pad, which is disposed on the tension transmission path of the first tie rod and / or the second tie rod to distribute the tension load.

9. The sealing tensile tester for complex environments according to claim 7 or 8, characterized in that, The tensile force monitoring module includes: A tension sensor, one end of which is fixedly connected to the flange shaft, and the other end of which is fixedly connected to the second pull rod; The data processing unit is used to process the electrical signals from the tension sensor. The wireless transmission unit is used to transmit the processed tensile data to the outside in real time.

10. The sealing tensile tester for complex environments according to claim 9, characterized in that, The sealing tensile tester for complex environments also includes a power display module, which comprises: A display panel is located on the outside of the end cap; A transparent sealing plate is disposed on the outside of the end cap, covering the display panel.

Images