Damper with internal pressure detection structure

Abstract

The utility model relates to the technical field of dampers, and discloses a damper with an internal pressure detection structure, which comprises a body, a conveying channel arranged on the body and two groups of detection devices arranged on the body corresponding to the conveying channel, the body comprises a cylinder body, and the two groups of detection devices are symmetrically arranged on the edges of the cylinder body close to the two ends; wherein the detection device comprises a mounting plate, a pressure transmitter and a detection piece; the mounting plate is detachably arranged on the cylinder body, and the pressure transmitter is arranged on the mounting plate and corresponds to the conveying channel; the detection piece is arranged on one side of the pressure transmitter; the detection piece comprises a movable shaft and a fixed shaft, one end of the movable shaft is arranged in the conveying channel and does linear motion through pressure change, the other end of the movable shaft penetrates through the mounting plate and is located in the fixed shaft, the fixed shaft is fixedly connected to the mounting plate, and when one side of the fixed shaft makes contact with one end of the movable shaft, a reminding signal is sent out.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, and particularly relates to a damper with an internal pressure detection structure. Background Technique

[0002] In modern engineering structures, especially in the fields of bridges, buildings, and mechanical equipment, dampers play a crucial role in vibration reduction. Traditional dampers have a simple structure and mainly absorb and consume vibration energy through the flow of damping fluid. However, with the progress of engineering technology, the performance requirements for dampers are also continuously improving. It is not only required to have higher vibration reduction efficiency but also to have good stability and reliability in various complex working environments.

[0003] In the design of dampers, the change of internal pressure has a significant impact on their performance. The pressure change inside the damper can directly affect the flow characteristics of the damping fluid, thereby changing the vibration reduction effect of the damper. In order to ensure that the damper can maintain a stable working state under various working conditions, it is crucial to accurately monitor and control the pressure inside the damper.

[0004] Existing dampers usually lack real-time detection means for internal pressure. This makes it possible that under certain extreme working conditions, the damper may have the risk of working failure, resulting in increased structural vibration and even potential safety hazards. Therefore, developing a damper with an internal pressure detection structure that can monitor the pressure change inside the damper and thus can make adjustments in a timely manner according to the pressure change, so as to improve the vibration reduction performance and working reliability of the damper, has important engineering application value. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a damper with an internal pressure detection structure, which solves the problems raised in the above background technique.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0007] A damper with an internal pressure detection structure includes a body, a conveying channel opened on the body, and a detection device provided on the body corresponding to the conveying channel. The body includes a cylinder block, and there are two groups of the detection devices, symmetrically arranged on the edges of the cylinder block near both ends;

[0008] Among them, the detection device includes a mounting plate, a pressure transmitter, and a detection piece; the mounting plate is detachably arranged on the cylinder block, the pressure transmitter is arranged on the mounting plate and corresponds to the conveying channel; the detection piece is arranged on one side of the pressure transmitter;

[0009] The detection piece includes a movable shaft and a fixed shaft. One end of the movable shaft is arranged in the conveying channel and moves linearly through the pressure change. The other end penetrates through the mounting plate and is located inside the fixed shaft. The fixed shaft is fixedly connected to the mounting plate and emits a reminder signal when it contacts one end of the movable shaft.

[0010] Optionally, the conveying channel is divided into a main channel and a side channel;

[0011] Both ends of the main channel communicate with the inner cavity and the outer cavity of the cylinder body, and one end of its outer cavity is connected to the pressure transmitter;

[0012] The side channel is L-shaped, one end communicates with the middle and lower side of the main channel, and the other end communicates with the bottom of the fixed shaft.

[0013] Optionally, the movable shaft includes a spring group and a moving rod;

[0014] The spring group is slidably connected to the conveying channel through a slideway;

[0015] The moving rod is detachably arranged on the top of the spring group.

[0016] Optionally, the fixed shaft includes a housing, a torsion cover, a self-resetting switch and a warning light;

[0017] The bottom of the housing is mounted on the mounting plate;

[0018] The torsion cover is threadedly connected inside the housing;

[0019] The self-resetting switch is arranged on the side of the torsion cover facing the connection between the housing and the mounting plate;

[0020] The warning light is arranged on the side of the torsion cover away from the self-resetting switch.

[0021] Optionally, a transparent window for observing the movement of the moving rod is provided on the surface of the housing.

[0022] The present utility model provides a damper with an internal pressure detection structure, having the following beneficial effects:

[0023] 1. Through the cooperative setting between the conveying channel and the detection device, the detection of the internal pressure change can be realized, so that feedback can be made in time when the pressure increases to notify the staff to make rectifications.

[0024] 2. Through the cooperative setting between the pressure transmitter and the detection piece, two types of online detection and offline detection can be realized. When the signal detection is delayed, the detection piece can visually display the pressure change in time. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the present utility model;

[0026] Figure 2 Schematic diagram of the cylinder block structure of the present utility model;

[0027] Figure 3 For the present utility model Figure 1 Schematic diagram of the enlarged structure at A in it;

[0028] Figure 4 Schematic diagram of the detection part structure of the present utility model.

[0029] In the figure: 1, cylinder block; 2, conveying channel; 21, main channel; 22, side channel; 3, detection device; 31, mounting plate; 32, pressure transmitter; 33, detection part; 331, movable shaft; 3311, spring group; 3312, moving rod; 332, fixed shaft; 3321, outer shell; 3322, torsion cap; 3323, self-resetting switch; 3324, warning light; 4, transparent window. Specific embodiments

[0030] In order to facilitate the understanding of the technical means, creative features, achieved purposes and effects of the present utility model, the present utility model will be further described below in conjunction with specific embodiments.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "lateral", "longitudinal", "end", "edge", "side wall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the technical solutions of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0032] This application proposes a damper with an internal pressure detection structure, which is used to detect the pressure of the damper and can give timely feedback in case of excessive internal pressure or other situations.

[0033] This application mainly consists of a damper body, a conveying channel 2 opened on the cylinder block 1 of the body, and a detection device 3 arranged corresponding to the conveying channel 2. The internal pressure detection effect can be achieved through the structures of these three parts.

[0034] Among them, reference can be made to Figure 1-2 , the body is any common basic damper structure, and all basic dampers will include a cylinder block 1. The structure of the body and its cylinder block 1 is an existing common and mature technology, and this application will not elaborate too much.

[0035] For reference Figure 3 The conveying channel 2 is arranged on the body, and is specifically arranged near the edges on both sides of the cylinder block 1; the conveying channel 2 is divided into two parts, a main channel 21 and a partial channel 22. Both ends of the main channel 21 communicate with the inner cavity and the outer cavity of the cylinder block 1, and one end of its outer cavity is connected to the pressure transmitter 32; the partial channel 22 is in an L shape, one end communicates with the middle and lower side of the main channel 21, and the other end communicates with the bottom of the fixed shaft 332; through the arrangement of the main channel 21 and the partial channel 22, the pressure fluid is promoted to be distributed to two places, and the detection device 3 receives the pressure fluid at the two places respectively to perform different pressure detection operations. One place is monitored through network communication, and the internal pressure condition is monitored through close observation at the other place.

[0036] Among them, the detection device 3 includes a mounting plate 31, a pressure transmitter 32 and a detector 33; the mounting plate 31 is detachably arranged on the cylinder block 1 and corresponds to the conveying channel 2; because the conveying channel 2 is located at the edges on both sides of the cylinder block 1, the detection device 3 is also located at the edges on both sides of the cylinder block after installation, so as to reduce the conflict with the movement of the piston inside the cylinder block 1.

[0037] Among them, the mounting plate 31 is set to a detachable structure. In one embodiment, when the mounting plate 31 is required for the structure of pressure detection, the mounting plate 31 that does not adapt to the mounting holes of the pressure transmitter 32 and the detector 33 is directly selected and hermetically set at the top position of the conveying channel 2. In another embodiment, when the mounting plate 31 is required for the structure of pressure detection, the mounting plate 31 with the mounting holes adapted to the pressure transmitter 32 and the detector 33 can be selected.

[0038] The pressure transmitter 32 is arranged on the mounting plate 31, and the detection end of the pressure transmitter 32 corresponds to one end of the main channel 21 of the conveying channel communicating with the outer cavity; when the inside of the cylinder block 1 starts to work, the pressure transmitter 32 performs hydraulic reading work; the numerical value is transmitted to an external device, so as to achieve the transmission of pressure data, and through the external processing setting, the numerical value is processed to judge the internal pressure condition. In case of non-compliance, the maintenance personnel can be notified to make a treatment.

[0039] Furthermore, in one embodiment of the numerical value transmission of the above pressure transmitter 32, the pressure transmitter is connected to an external pressure relay and is connected to an external PLC controller. When the damper leaks or fails, the pressure is lower than the set value of the relay, and the relay sends an electrical signal to the PLC controller. These signals are filtered and processed through pre-setting, and the PLC converts the electrical signal into a warning message and passes it to the staff in time.

[0040] Secondly, considering that there may be an influence of signals during the transmission of the numerical value, resulting in a delay in the information of the signal received by the staff, a detector 33 is arranged on one side of the pressure transmitter 32, and the detector 33 is composed of two parts, a movable shaft 331 and a fixed shaft 332;

[0041] For reference Figure 3-4 , where one end of the movable shaft 331 is arranged in the conveying channel 2 and moves linearly through pressure change, and the other end thereof penetrates through the mounting plate 31 and is located inside the fixed shaft 332; in the specific structure for realizing this step, the movable shaft 331 includes two parts of movement, namely a spring group 3311 and a moving rod 3312. The spring group 3311 is slidably connected to the conveying channel 2 through a slideway. When the internal pressure is too high, the spring group 3311 moves along the slideway direction to push the moving rod 3312 upward. Further, the moving rod 3312 is detachably arranged on the top of the spring group 3311 to facilitate assembly and replacement of different mounting plates 31.

[0042] It should be noted that the spring group 3311 is composed of a return spring and fixing plates arranged at both ends of the return spring. The fixing plates are provided with slider shafts adapted to the slideway to reduce the deviation of the spring group 3311 during movement.

[0043] The fixed shaft 332 is fixedly connected to the mounting plate 31, and a reminder signal is sent when one side of it contacts one end of the movable shaft 331. To achieve this effect, the fixed shaft 332 is realized through four parts of structure: a housing 3321, a torsion cap 3322, a self-resetting switch 3323, and a warning light 3324. The bottom of the housing 3321 is mounted on the mounting plate 31, and its surface is provided with a transparent window 4. The movement of the moving rod 3312 is observed through the transparent window 4. According to the observation record, the maximum movement range of the moving rod 3312 under normal pressure is determined. To make the range more accurate during recording, scale lines are set on the moving rod 3312, and scale lines are also set on the housing 3321 synchronously. Thus, after determining the basic height, the height of the torsion cap located inside the housing 3321 can be adjusted according to the scale lines on the housing 3321; further, the torsion cap 3322 is threadedly connected to the housing 3321 to adapt to the required flexible movement conditions.

[0044] The self-resetting switch 3323 is arranged on the side of the torsion cap 3322 facing the connection between the housing 3321 and the mounting plate 31. Based on the setting of the height of the torsion cap 3322 after debugging, when the moving rod 3312 exceeds the limit height, it will press against the self-resetting switch 3323, prompting the self-resetting switch 3323 to turn on, controlling the warning light 3324 arranged on the side of the torsion cap 3322 away from the self-resetting switch 3323 to emit light and give an alarm. It should be noted that the self-resetting switch 3323 is a mature existing technology and will not be elaborated too much in this application. Secondly, the self-resetting switch 3323 is connected to the warning light 3324 by a circuit, and the warning light 3324 can be controlled to turn on and off according to the pressing situation of the self-resetting switch 3323.

[0045] In this utility model, the working steps of the device are as follows:

[0046] 1. First, observe the maximum moving distance of the moving rod 3312 through the movement of the damper;

[0047] 2. Secondly, adjust the torsion cap 3322 in the outer shell 3321 to a position that is 0.5 - 1 cm greater than the highest moving distance of the moving rod 3312;

[0048] 3. Then, connect the internal motion pressure transmitter 32 of the damper to the external pressure relay and connect it to the external PLC controller to form the effect of online internal pressure detection;

[0049] 4. Finally, considering that there may be a delay during the detection process, the nearby maintenance personnel can observe the change of the moving rod 3312. When the moving range of the moving rod 3312 under pressure is greater than the original pressure range, it will touch the self - reset switch 3323, and thus the self - reset switch 3323 will turn on the warning light 3324 to emit light to remind the nearby maintenance personnel to deal with it in time.

[0050] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above - mentioned embodiments. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A damper with an internal pressure detection structure, characterized in that: It includes a main body, a conveying channel (2) opened on the main body, and a detection device (3) provided on the main body corresponding to the conveying channel (2). The main body includes a cylinder block (1). There are two groups of the detection devices (3), symmetrically arranged on the edges of the cylinder block (1) near both ends. Among them, the detection device (3) includes a mounting plate (31), a pressure transmitter (32), and a detection piece (33). The mounting plate (31) is detachably arranged on the cylinder block (1). The pressure transmitter (32) is arranged on the mounting plate (31) and corresponds to the conveying channel (2). The detection piece (33) is arranged on one side of the pressure transmitter (32). The detection piece (33) includes a movable shaft (331) and a fixed shaft (332). One end of the movable shaft (331) is arranged in the conveying channel (2) and makes a linear motion through pressure change. The other end penetrates the mounting plate (31) and is located inside the fixed shaft (332). The fixed shaft (332) is fixedly connected to the mounting plate (31), and a reminder signal is emitted when one side of it contacts one end of the movable shaft (331).

2. The damper with an internal pressure detection structure according to claim 1, characterized in that: The conveying channel (2) is divided into a main channel (21) and a side channel (22). Both ends of the main channel (21) communicate with the inner cavity and the outer cavity of the cylinder block (1), and one end of its outer cavity is connected to the pressure transmitter (32). The side channel (22) is L-shaped. One end communicates with the middle and lower side of the main channel (21), and the other end communicates with the bottom of the fixed shaft (332).

3. The damper with an internal pressure detection structure according to claim 1, characterized in that: The movable shaft (331) includes a spring group (3311) and a moving rod (3312). The spring group (3311) is slidably connected to the conveying channel (2) through a slideway. The moving rod (3312) is detachably arranged on the top of the spring group (3311).

4. The damper with an internal pressure detection structure according to claim 3, characterized in that: The fixed shaft (332) includes a housing (3321), a torsion cover (3322), a self-resetting switch (3323), and a warning light (3324). The bottom of the housing (3321) is installed on the mounting plate (31). The torsion cover (3322) is threadedly connected inside the housing (3321). The self-resetting switch (3323) is arranged on the side of the torsion cover (3322) facing the connection between the housing (3321) and the mounting plate (31). The warning light (3324) is arranged on the side of the torsion cover (3322) away from the self-resetting switch (3323).

5. The damper with an internal pressure detection structure according to claim 4, characterized in that: A transparent window (4) for observing the movement of the moving rod (3312) is provided on the surface of the housing (3321).

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