I-shaped steel web position fixing device of acceleration sensor

Abstract

The utility model provides an I-shaped steel web position fixing device of an acceleration sensor, which belongs to the technical field of fixing devices and comprises an acceleration sensor mounting base, a first adjustable support rod, a first anti-slip base, a second adjustable support rod and a second anti-slip base. A first adjustable supporting rod is arranged above the acceleration sensor mounting base, one end of the first adjustable supporting rod is connected with the acceleration sensor mounting base, the other end of the first adjustable supporting rod is connected with a first anti-skid base, and a second adjustable supporting rod is arranged below the acceleration sensor mounting base; one end of the second adjustable supporting rod is connected with the acceleration sensor mounting base, and the other end of the second adjustable supporting rod is connected with the second anti-skid base. The fixing device overcomes the defects that when an acceleration sensor is mounted on an I-shaped steel web, the structural strength is damaged, and the adaptability is poor in a traditional fixing device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fixing device technical field, specifically, relate to a I -beam web position fixing device of acceleration sensor. BACKGROUND

[0002] In modern engineering field, especially in the construction industry, the safety monitoring of structure is very important. I-beam as a kind of material widely used in the key parts such as beam and column of building frame structure, its structural integrity is directly related to the safety and durability of the whole building. With the growth of building service life and the continuous effect of various factors in nature, the structure inevitably will face various challenges. Among them, vibration is a very key influencing factor. Whether the vibration from the operation of internal equipment of building, personnel activity, or the vibration caused by external natural environment such as wind, earthquake, etc. will have different degrees of influence on I-beam structure.

[0003] However, in the actual monitoring process, the fixing of acceleration sensor on I-beam faces many difficulties. First, the structure form suitable for I-beam, such as steel structure corridor and large-span space structure, is often in a complex high-altitude working environment. In this environment, the traditional fixing method is difficult to implement. In addition, I-beam will deform during the service of structure due to bearing various loads. This deformation will put higher requirements on the stability of sensor. If the fixing device cannot effectively resist these deformations and vibrations, the sensor may be damaged due to uneven stress, or the collected data may be distorted, thereby seriously affecting the accuracy and reliability of the monitoring results. In addition, the actual working environment of acceleration sensor is very harsh. In the process of building construction, such as the seepage produced during concrete pouring, which may erode the sensor fixing device; Rainy weather will make the fixing device in a humid state for a long time, accelerate its rusting or corrosion; The high temperature radiation produced by welding operation will also have adverse effects on the material properties of the fixing device. If the fixing device cannot adapt to these complex and harsh environmental conditions, the performance of the sensor will inevitably decline or even fail, eventually leading to the failure of the whole monitoring work. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides an I-beam web position fixing device of acceleration sensor, which solves the problems of damaging structural strength and poor adaptability of traditional fixing device when installing acceleration sensor on I-beam web, and improves the efficiency of monitoring work.

[0005] The utility model is realized as follows:

[0006] The utility model provides a I -beam web position fixing device of acceleration sensor, wherein: including acceleration sensor installation base, first adjustable support rod, first antiskid base, second adjustable support rod and second antiskid base, acceleration sensor installation base top is provided with first adjustable support rod, first adjustable support rod one end is connected acceleration sensor installation base other end and connects first antiskid base, acceleration sensor installation base below is provided with second adjustable support rod, second adjustable support rod one end is connected acceleration sensor installation base, other end connects second antiskid base.

[0007] Need to explain, the upper adjustable support rod in the present specification corresponds to the first adjustable support rod of the reference sign, the lower adjustable support rod corresponds to the second adjustable support rod of the reference sign, and so on.

[0008] On the basis of the above technical scheme, the I-beam web position fixing device of the acceleration sensor of the utility model can also be improved as follows:

[0009] Among them, the acceleration sensor mounting base is provided with a bottom plate, the bottom plate is provided with four channels, the acceleration sensor is connected with the acceleration sensor mounting base through the channels, and a plurality of sliding bearing holes are welded on the top of the acceleration sensor mounting base.

[0010] Further, the first adjustable support rod includes a first upper end, a first journal, a first adjusting ring and a first lower end, the first upper end and the first journal are both provided with a first journal, the first upper end is connected with the acceleration sensor mounting base through the first journal matched with the sliding bearing hole, the lower half of the first upper end is provided with a thread, the lower half of the first lower end is provided with a thread, and the threads provided on the first upper end and the first lower end are matched with the threads in the first adjusting ring.

[0011] The upper end of the upper adjustable support rod is provided with a journal matched with the sliding bearing hole and connected with the sensor mounting base, and rotation can be realized. The lower half of the upper end of the adjustable support rod is provided with a dense right-handed stretching thread. The lower half of the lower end of the adjustable support rod is provided with a dense right-handed stretching thread. The dense right-handed stretching thread can rotate the adjusting ring to adjust the length of the support rod through the dense right-handed shear thread in the adjusting ring.

[0012] Further, the first adjusting ring is provided with a first fixed ring at the upper end and the lower end respectively, the first fixed ring is provided with a thread, and the two sides of the first adjusting ring and the first fixed ring are both provided with a first protruding handrail, the first protruding handrail is used to rotate the first adjusting ring and the first fixed ring.

[0013] The fixed ring is screwed in the direction of the fixed ring to fix the length of the support rod after the adjustment ring determines the required length.

[0014] Further, the first anti-skid base is welded with two sliding bearing holes matched with the first journal on the first lower end, the bearing hole plate of the first anti-skid base is welded with first rib plates on both sides, and the first floor position of the first anti-skid base is provided with an anti-skid rubber pad.

[0015] The upper anti-skid base is welded with two sliding bearing holes matched with the journal on the lower end of the upper adjustable support rod, and can be rotated. The rib plates welded on both sides of the bearing hole plate can increase the stability of the bearing hole. The floor position of the upper anti-skid base is placed with an anti-skid rubber, which can increase the friction of the contact surface and provide certain support to prevent damage to the support surface.

[0016] Further, the second adjustable support rod is provided with a second upper end, a second lower end, a second journal and a second adjustment ring, the second upper end is connected with the acceleration sensor mounting base through the second journal matched with the sliding bearing hole of the acceleration sensor mounting base, the lower half of the second upper end is provided with a thread, the lower half of the second lower end is provided with a thread, and the threads provided on the second upper end and the second lower end are matched with the threads in the second adjustment ring.

[0017] Further, the upper and lower ends of the second adjustment ring are respectively provided with a second fixed ring, the second fixed ring is provided with threads matched with the threads provided on the second upper end and the second lower end, and the second adjustment ring and the second fixed ring are respectively provided with second protruding handrails on both sides, which are used to rotate the second adjustment ring and the second fixed ring.

[0018] Further, the second anti-skid base is welded with two sliding bearing holes, the bearing hole plate is matched with the second journal on the second lower end, the second anti-skid base is provided with a bearing hole plate, the bearing hole plate is welded with a second rib plate on both sides, and the second floor position of the second anti-skid base is provided with an anti-skid rubber pad.

[0019] Further, the first floor and the second floor are completely the same, the anti-skid rubber pad is the same shape as the first floor and the second floor, and the size of the anti-skid rubber pad is smaller than the size of the first floor and the second floor.

[0020] Further, the fixing device is symmetrical in structure above and below the horizontal plane where the acceleration sensor mounting base is located.

[0021] Compared with the prior art, the I-shaped steel web position fixing device for an acceleration sensor has the following beneficial effects:

[0022] Precise fitting and wide adaptability:

[0023] The acceleration sensor mounting base is connected with the adjustable support rod through a sliding bearing, and the anti-slip base is connected with the adjustable support rod through a bearing hole. This unique connection method enables the device to be fully fitted on the web position of the I-shaped steel. The adjustable support rod plays a key role, as it can be flexibly adjusted according to different cross-sectional types of I-shaped steel. Whether it is a common standard I-shaped steel cross-section or some special specifications or deformed I-shaped steel, the device can adaptively adjust its shape and size to ensure that the sensor mounting base is in close contact with the web. This feature effectively solves the poor adaptability of traditional fixing devices when facing different I-shaped steel forms, greatly improving the versatility and practicality of the device. For example, in a large construction project, various specifications of I-shaped steel may be used to build frame structures in different parts. This device does not need to be specially customized or adjusted for each specification, and can be easily and quickly installed on different I-shaped steel webs for vibration monitoring, greatly reducing installation difficulty and cost, and improving monitoring efficiency.

[0024] Non-destructive installation and structure protection:

[0025] The device can fix the acceleration sensor without damaging the surface of the I-shaped steel. Compared with the traditional bolt fixing method, it avoids weakening the strength of the I-shaped steel structure caused by drilling. Drilling may cause stress concentration phenomenon of the I-shaped steel when bearing load, reducing its carrying capacity, while the non-destructive installation feature of the device completely preserves the structural integrity of the I-shaped steel, enabling it to better play its mechanical properties in building structures. At the same time, compared with the glue and tape fixing method, the device will not cause the sensor to fall off or be fixed due to the aging of the glue, the loss of adhesive, etc. It also will not leave glue stains or damage the surface coating of the I-shaped steel after removing the sensor, thus ensuring the appearance quality of the I-shaped steel and the smooth progress of subsequent construction, such as fire spraying, corrosion prevention and other construction measures will not be affected. This is of great significance for some building projects with high requirements for structural appearance and fireproof and corrosion-resistant performance, such as commercial centers, high-rise office buildings, etc.

[0026] High stability and anti-interference:

[0027] When the I-shaped steel is deformed due to stress during service, the structural design of the device can effectively resist these deformations and vibrations. The combination of the adjustable support rod and the sliding bearing enables the sensor mounting base to adapt to a certain degree of deformation of the I-shaped steel and maintain a relatively stable state, avoiding uneven stress or damage to the sensor caused by structural deformation. At the same time, the overall structure of the device has good anti-vibration performance, which can effectively filter out some external interference vibrations and ensure that the vibration data collected by the sensor is accurate and reliable. For example, in the monitoring of building structures in earthquake-prone areas, when an earthquake occurs, the I-shaped steel structure will produce strong vibration and deformation, and the device can still maintain the stable operation of the sensor in this extreme case and accurately record the vibration data, providing accurate data support for damage assessment of building structures after an earthquake. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 It is an example diagram of an I-shaped steel web position fixing device of an acceleration sensor.

[0030] Figure 2 It is an example diagram of an acceleration sensor mounting base of the present application.

[0031] Figure 3 It is an example diagram of a first adjustable support rod of the present application.

[0032] Figure 4 It is an example diagram of a first adjusting ring of the present application.

[0033] Figure 5 It is an example diagram of a first anti-skid base of the present application.

[0034] Figure 6 It is an example diagram of a second adjustable support rod of the present application.

[0035] Figure 7 It is an example diagram of a second adjusting ring of the present application.

[0036] Figure 8 It is an example diagram of a second anti-skid base of the present application.

[0037] Figure 9 It is an installation schematic diagram of an I-shaped steel web position fixing device of an acceleration sensor of the present application.

[0038] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0039] 10, acceleration sensor mounting base; 11, hole; 20, first adjustable support rod; 21, first upper end; 22, first journal; 23, first adjusting ring; 231, first fixed ring; 232, first protruding handrail; 24, first lower end; 30, first anti-skid base; 31, first rib plate; 32, first floor; 40, second adjustable support rod; 41, second upper end; 42, second lower end; 43, second journal; 44, second adjusting ring; 441, second fixed ring; 442, second protruding handrail; 50, second anti-skid base; 51, second rib plate; 52, second floor. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0041] As Figures 1-8 shown is a first embodiment of the I-shaped steel web position fixing device of the acceleration sensor provided by the utility model, and in the embodiment, it comprises an acceleration sensor mounting base 10, a first adjustable support rod 20, a first anti-skid base 30, a second adjustable support rod 40 and a second anti-skid base 50, the acceleration sensor mounting base 10 is provided above with the first adjustable support rod 20, one end of the first adjustable support rod 20 is connected with the acceleration sensor mounting base 10 and the other end is connected with the first anti-skid base 30, the acceleration sensor mounting base 10 is provided below with the second adjustable support rod 40, one end of the second adjustable support rod 40 is connected with the acceleration sensor mounting base 10 and the other end is connected with the second anti-skid base 50.

[0042] In the above technical scheme, the acceleration sensor mounting base 10 is provided with a bottom plate, the bottom plate is provided with four holes 11, the acceleration sensor is connected with the acceleration sensor mounting base 10 through the holes 11, and a plurality of sliding bearing holes are welded above the acceleration sensor mounting base 10.

[0043] Further, in the above technical solution, the first adjustable support rod 20 comprises a first upper end 21, a first shaft neck 22, a first adjusting ring 23 and a first lower end 24, the first upper end 21 and the first shaft neck 22 are both provided with the first shaft neck 22, the first upper end 21 is connected with the acceleration sensor mounting base 10 through the first shaft neck 22 matched with the sliding bearing hole, the lower half of the first upper end 21 is provided with threads, the lower half of the first lower end 24 is provided with threads, and the threads provided on the first upper end 21 and the first lower end 24 are matched with the threads in the first adjusting ring 23.

[0044] Further, in the above technical solution, the first adjusting ring 23 is provided with a first fixed ring 231 at the upper end and the lower end respectively, the first fixed ring 231 is provided with threads, and the two sides of the first adjusting ring 23 and the first fixed ring 231 are both provided with a first protruding handrail 232, which is used to rotate the first adjusting ring 23 and the first fixed ring 231.

[0045] Further, in the above technical solution, the first anti-skid base 30 is welded with two sliding bearing holes matched with the first shaft neck 22 on the first lower end 24, the bearing hole plate of the first anti-skid base 30 is welded with a first rib plate 31 on both sides, and the first floor 32 of the first anti-skid base 30 is provided with an anti-skid rubber pad.

[0046] Further, in the above technical solution, the second adjustable support rod 40 is provided with a second upper end 41, a second lower end 42, a second shaft neck 43 and a second adjusting ring 44, the second upper end 41 is connected with the acceleration sensor mounting base 10 through the second shaft neck 43 matched with the sliding bearing hole of the acceleration sensor mounting base 10, the lower half of the second upper end 41 is provided with threads, the lower half of the second lower end 42 is provided with threads, and the threads provided on the second upper end 41 and the second lower end 42 are matched with the threads in the second adjusting ring 44.

[0047] Further, in the above technical solution, the second adjusting ring 44 is provided with a second fixed ring 441 at the upper end and the lower end respectively, the second fixed ring 441 is provided with threads matched with the threads provided on the second upper end 41 and the second lower end 42, the two sides of the second adjusting ring 44 and the second fixed ring 441 are both provided with a second protruding handrail 442, which is used to rotate the second adjusting ring 44 and the second fixed ring 441.

[0048] Further, in the above technical solution, the second anti-skid base 50 is welded with two sliding bearing holes matched with the second shaft neck 43 on the second lower end 42, the bearing hole plate of the second anti-skid base 50 is provided with a second rib plate 51 on both sides, and the second floor 52 of the second anti-skid base 50 is provided with an anti-skid rubber pad.

[0049] Furthermore, in the above technical solution, the first floor 32 and the second floor 52 are completely identical, the anti-slip rubber pad has the same shape as the first floor 32 and the second floor 52, and the size of the anti-slip rubber pad is smaller than the size of the first floor 32 and the second floor 52.

[0050] Furthermore, in the above technical solution, the fixing device as a whole has an upper and lower symmetrical structure with the horizontal plane where the accelerometer mounting base 10 is located as the axis of symmetry.

[0051] like Figure 9 As shown, the accelerometer sensor is first securely fixed to the mounting base through the pre-drilled holes, or other methods may be used to fix it inside the mounting base depending on the sensor type. The first and second adjustable support rods are pre-adjusted according to the width of the I-beam web.

[0052] First, pre-install the retaining rings onto both ends of the rod, leaving as much operating space as possible for the adjusting rings. Then, initially connect the retaining rings to both ends of the rod by turning them clockwise.

[0053] By turning the adjusting rings on the first and second adjustable support rods to the left, the support rods can be extended using the right-hand shearing threads inside the adjusting rings and the right-hand tension threads at both ends of the rods. The length can be adjusted so that the lengths of the first adjustable support rod, the first anti-slip base, the second adjustable support rod, and the second anti-slip base are approximately the same, and the total length is greater than the width of the web.

[0054] Then, the second anti-slip base is placed on the inner surface of the flange of the I-beam. The length of the second support rod is controlled by adjusting the second adjusting ring so that the bottom surface of the sensor mounting base coincides with the web surface until the bottom surface of the mounting base is located at the center position in the width direction of the I-beam. The second fixing ring is rotated clockwise and the other fixing ring is rotated counterclockwise. Because its internal right-hand shear thread matches the right-hand threads at both ends of the adjustable support rod, the adjusting ring cannot rotate, thus initially fixing the length of the lower rod.

[0055] Align the bottom surface of the first anti-slip base with the inner surface of the upper flange of the I-beam. Rotate the adjusting ring counterclockwise to continuously extend the length of the first adjustable support rod until the first adjustable support rod no longer shows any signs of falling and the rod is clearly under stress. Then rotate the fixing ring clockwise and the other fixing ring counterclockwise to fix the adjusting ring.

[0056] The retaining ring initially secures the adjusting ring. Continuous fine-tuning of the upper and lower adjusting rings through the action of densely coiled right-hand threads ensures that the bottom surface of the sensor mounting base aligns with the surface of the web plate until the bottom surface of the mounting base is centered along the width of the I-beam. Then, simultaneously rotating the adjusting ring right-hand to firmly press the sensor mounting base against the sensor web plate, and finally rotating the retaining ring right-hand while rotating the other retaining ring counter-clockwise to secure the adjusting ring.

[0057] Specifically, the principle of the utility model is:

[0058] The principle of fitting and self-adaptation:

[0059] The adjustable support rod is the core component of the device for precise fitting and wide adaptation of the I-beam web. Its design is based on the lever principle and deformation coordination principle in mechanics. When the device is installed on the I-beam web, the adjustable support rod forms a flexible support system through cooperation with the sliding bearing and the anti-skid base. According to the shape and size of different I-beam sections, the adjustable support rod changes its length and angle within a certain range. For example, when a wider I-beam web is encountered, the adjustable support rod extends outward to increase the support span; when the web thickness changes, the sliding characteristics of the bearing connection allow the adjustable support rod to automatically adjust the height in the vertical direction, so that the sensor mounting base can always be closely fitted to the web surface. This self-adaptive adjustment process is a dynamic mechanical equilibrium process, which realizes the automatic adaptation of the device to different I-beam section types through the interaction of friction, support force and gravity between components, ensuring the accuracy and stability of the sensor mounting position;

[0060] Non-destructive fixation and force transmission principle:

[0061] The non-punching fixation method adopted by the device avoids direct damage to the I-beam structure, and its fixation principle is based on the synergistic effect of friction and gripping force. When the anti-skid base contacts the I-beam web surface, through special surface texture design or the use of high-friction coefficient materials, the friction between the web and the base is increased. At the same time, the adjustable support rod exerts a certain gripping force on the sensor mounting base, so that the entire device can be firmly attached to the I-beam web. In this process, the vibration and force received by the sensor are effectively transmitted to the I-beam structure through the mounting base, adjustable support rod and anti-skid base. Since there is no local weakening of the structure caused by punching, the force is evenly distributed on a larger area of the I-beam web, avoiding the occurrence of stress concentration. This non-destructive fixation and reasonable force transmission mechanism ensures that the sensor can be stably fixed on the I-beam while collecting vibration data, without negatively affecting the mechanical properties of the structure itself;

[0062] Anti-deformation and vibration attenuation principle:

[0063] For the deformation and vibration problems of I-beams during service, the technical principle of the device involves elastic mechanics and damping principles. The adjustable support rod and the connection mode of the sliding bearing have a certain elastic deformation ability. When the I-beam deforms, this elastic deformation can absorb and buffer part of the deformation energy, so that the relative displacement of the sensor mounting base remains within a small range. At the same time, some damping materials or structures may be used inside the device, such as setting damping washers at the bearing part. When the vibration wave is transmitted to the device, the damping material converts the vibration energy into heat energy or other forms of energy through internal friction, thereby achieving vibration attenuation. This anti-deformation and vibration attenuation mechanism effectively protects the sensor from excessive deformation and vibration, ensuring that the vibration data collected by the sensor can truly reflect the actual vibration of the I-beam structure, improving the accuracy and reliability of the monitoring data.

Claims

1. An I-beam web position fixing device for an acceleration sensor, characterized by: The application relates to an acceleration sensor mounting base (10), a first adjustable support rod (20), a first anti-skid base (30), a second adjustable support rod (40) and a second anti-skid base (50), wherein the first adjustable support rod (20) is arranged above the acceleration sensor mounting base (10), one end of the first adjustable support rod (20) is connected with the acceleration sensor mounting base (10), and the other end is connected with the first anti-skid base (30); the second adjustable support rod (40) is arranged below the acceleration sensor mounting base (10), one end of the second adjustable support rod (40) is connected with the acceleration sensor mounting base (10), and the other end is connected with the second anti-skid base (50).

2. An I-beam web position securing device for an acceleration sensor according to claim 1, characterized in that The acceleration sensor mounting base (10) is provided with a bottom plate, the bottom plate is provided with four holes (11), an acceleration sensor is connected with the acceleration sensor mounting base (10) through the holes (11), and a plurality of sliding bearing holes are welded on the acceleration sensor mounting base (10).

3. An I-beam web position securing device for an acceleration sensor according to claim 2, characterized in that The first adjustable support rod (20) comprises a first upper end (21), a first shaft neck (22), a first adjusting ring (23) and a first lower end (24), the first upper end (21) and the first shaft neck (22) are both provided with a first shaft neck (22), the first upper end (21) is connected with the acceleration sensor mounting base (10) through the first shaft neck (22) matched with the sliding bearing hole, the lower half of the first upper end (21) is provided with a thread, the lower half of the first lower end (24) is provided with a thread, and the threads arranged on the first upper end (21) and the first lower end (24) are matched with the threads in the first adjusting ring (23).

4. An I-beam web position securing device for an acceleration sensor according to claim 3, characterized in that The upper and lower ends of the first adjusting ring (23) are respectively provided with first fixing rings (231), the first fixing rings (231) are provided with threads, and the two sides of the first adjusting ring (23) and the first fixing ring (231) are provided with first protruding handrails (232), so that the first adjusting ring (23) and the first fixing ring (231) can be rotated.

5. An I-beam web position securing device for an acceleration sensor according to claim 4, characterized in that The first anti-skid base (30) is welded with two sliding bearing holes matched with the first shaft neck (22) on the first lower end (24), first rib plates (31) are welded on the two sides of the bearing hole plate of the first anti-skid base (30), and anti-skid rubber pads are arranged on the first floor (32) of the first anti-skid base (30).

6. An I-beam web position securing device for an acceleration sensor according to claim 5, characterized in that The second adjustable support rod (40) is provided with a second upper end (41), a second lower end (42), a second shaft neck (43) and a second adjusting ring (44), the second upper end (41) is connected with the acceleration sensor mounting base (10) through the second shaft neck (43) matched with the sliding bearing hole of the acceleration sensor mounting base (10), the lower half of the second upper end (41) is provided with threads, the lower half of the second lower end (42) is provided with threads, and the threads provided on the second upper end (41) and the second lower end (42) are matched with the inner threads of the second adjusting ring (44).

7. An I-beam web position securing device for an acceleration sensor according to claim 6, characterized in that The upper and lower ends of the second adjusting ring (44) are respectively provided with a second fixed ring (441), the second fixed ring (441) has threads matched with the threads provided on the second upper end (41) and the second lower end (42), and the second adjusting ring (44) and the second fixed ring (441) are provided with second protruding handrails (442) on both sides, which are used to rotate the second adjusting ring (44) and the second fixed ring (441).

8. An I-beam web position securing device for an acceleration sensor according to claim 7, characterized in that The second anti-skid base (50) is welded with two sliding bearing holes, the bearing hole plate is matched with the second shaft neck (43) on the second lower end (42), the second anti-skid base (50) is provided with a bearing hole plate, the second rib plate (51) is welded on both sides of the bearing hole plate, and the second floor (52) of the second anti-skid base (50) is provided with an anti-skid rubber pad.

9. An I-beam web position securing device for an acceleration sensor according to claim 8, characterized in that The first floor (32) and the second floor (52) are completely same, the anti-skid rubber pad is same as the shape of the first floor (32) and the second floor (52), and the size of the anti-skid rubber pad is smaller than the size of the first floor (32) and the second floor (52).

10. An I-beam web position securing device for an acceleration sensor according to claim 9, characterized in that The fixing device is symmetrical in structure with the horizontal plane where the acceleration sensor mounting base (10) is located as the symmetrical axis.

Images