Bridge support with visualized exposed height of sliding plate

Abstract

The utility model relates to the technical field of bridges, in particular to a bridge support with the exposed height of a sliding plate visualized. The utility model discloses a bridge support with a visual exposed height of a sliding plate. The bridge support comprises a sliding plate mechanism and a measuring device, the measuring device comprises a pressing head, a display mechanism and a support. The pressing head abuts against the sliding plate mechanism. The display mechanism is connected with the pressure head through a connecting rod and comprises a scale and a pointer which can move relatively, and the connecting rod is connected with the scale or the pointer. The bracket and the connecting rod are connected at the position of the connecting rod close to the pressure head through a connecting shaft. The display mechanism is connected with the connecting rod through the transmission mechanism, and the transmission mechanism is a speed-increasing transmission mechanism. The bridge support with the visual exposure height of the sliding plate has the advantages that the exposure height condition of the sliding plate can be monitored in real time, the bridge support is not limited by operation space, the measurement accuracy is improved, the problem of data volume does not exist, the system is simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a bridge support with a highly visible exposed height of a slide plate. Background Art

[0002] As the "joint" connecting the bridge and the pier, the durability of the bridge bearing is closely related to the durability of the bridge structure. In the degradation assessment of bridge bearing performance, the wear degree of the slide plate, that is, the exposed height of the slide plate, is one of the important evaluation indicators. When the exposed height of the slide plate is too small, the bearing may experience steel-to-steel wear, affecting the sliding and rotation functions of the bearing, and thus affecting the safety of the bridge structure.

[0003] In the prior art, the thickness of the non-metallic slide plate of the bridge bearing is generally 7mm, the embedded constraint depth is 4mm, and the initial exposed height is 3mm. After bearing, as the slide plate continues to deform, creep and wear, the exposed height will gradually decrease, and it is difficult to observe inside the bearing. The existing detection method mainly uses a feeler gauge for manual inspection. When it is found that the exposed height of the slide plate is reduced to a certain extent, measures such as replacement and maintenance are taken. On the one hand, the exposed height cannot be monitored in real time, and on the other hand, the operating space is small and the accuracy is not high. Although a high-precision strain or displacement measurement system can also be set in the bearing for real-time monitoring, for example, the Chinese invention patent with publication number CN116380430A discloses a full life cycle monitoring system and method for bridge bearings. The system detects the bearing pressure transmitted by the upper bearing plate by symmetrically setting multiple piezoelectric sensors on the spherical cap lining. When the bridge bearing is subjected to an unbalanced load, the bearing unbalanced load direction can be determined according to the different values ​​of electrical signals transmitted by the piezoelectric sensors in different quadrants; at the same time, the magnitude of the bearing unbalanced load can be obtained according to the numerical calculation and analysis of the electrical signals in different quadrants; by implanting the wear sensor in the wear-resistant slide plate, the wear is synchronized with the wear-resistant slide plate, and different monitoring levels are output according to different wear thicknesses, so as to monitor the thickness of the wear-resistant plate, and the use of the bearing can be analyzed, and the wear-resistant slide plate can be replaced in time to avoid accidents. However, the deformation, creep and wear of the slide plate in daily life are extremely small, and the accuracy of common sensors is difficult to detect, and it takes decades to reach the limit value, the data volume is huge, the system is cumbersome, and the cost is very high. Utility Model Content

[0004] In view of this, the utility model aims to provide a bridge bearing with visualized exposed height of a slide plate, wherein a pressure head is arranged on the slide plate mechanism of the bridge bearing, and the wear of the slide plate is detected by the movement of the pressure head, the pressure head is connected to a display mechanism composed of a scale and a pointer through an unequal-arm lever, the display mechanism is connected to a connecting rod through an increasing speed transmission mechanism, the transmission mechanism is composed of a rack, a large gear and a small gear connected to the connecting rod, which are meshed in sequence, the scale is attached to the surface of the small gear of the transmission mechanism, and different ranges of change are marked on the surface of the scale by at least three colors that change in sequence from cold to warm tones, thereby solving the problems of not being able to monitor the exposed height in real time, on the other hand, the operating space is small and the accuracy is not high, the accuracy of common sensors is difficult to detect, and it takes decades to reach the limit, the data volume is huge, the system is cumbersome, and the cost is very high.

[0005] In order to solve the above problems, the utility model provides a bridge support with a visible exposed height of a slide plate, comprising:

[0006] Skateboard mechanism;

[0007] Measuring device, comprising:

[0008] A pressure head, abuttingly connected with the slide mechanism;

[0009] A display mechanism, connected to the pressure head through a connecting rod, the display mechanism includes a scale and a pointer, the scale and the pointer can move relative to each other, and the connecting rod is connected to the scale or the pointer;

[0010] A bracket, connected to the connecting rod through the connecting shaft at a position of the connecting rod close to the pressure head;

[0011] Transmission mechanism, the display mechanism is connected to the connecting rod through the transmission mechanism, and the transmission mechanism is a speed-increasing transmission mechanism.

[0012] Furthermore, the skateboard exposes the highly visible bridge bearings, including:

[0013] Upper seat plate;

[0014] The middle seat plate has an upper surface and a lower surface facing each other, the upper surface is a plane, and the lower surface is a spherical surface protruding downward;

[0015] lower seat panel;

[0016] The slide plate mechanism comprises:

[0017] An upper slide assembly connected to the upper surface;

[0018] A lower slide assembly connected to the lower surface;

[0019] The bridge bearing comprises the upper seat plate, the upper slide plate assembly, the middle seat plate, the lower slide plate assembly and the lower slide plate assembly connected in sequence from top to bottom;

[0020] The bracket is fixed on at least one of the upper seat plate, the middle seat plate and the lower seat plate.

[0021] Furthermore, the transmission mechanism is a gear transmission mechanism, comprising:

[0022] a rack connected to the connecting rod;

[0023] A large gear is rotatably fixed on the bracket, and the large gear is meshingly connected with the rack;

[0024] A small gear is rotatably fixed on the bracket, and the small gear is meshingly connected with the large gear;

[0025] The scale is connected to the pinion;

[0026] The first end of the pointer remains relatively still with the bracket, and the second end extends toward the ruler.

[0027] Further, the first end of the pointer is coaxially arranged with the pinion gear;

[0028] The scale is in the shape of a disk and is closely connected to one side surface of the pinion gear, and the scale is located between the pinion gear and the pointer.

[0029] Furthermore, the connecting rod is generally in a zigzag shape.

[0030] Furthermore, the scales on the ruler are marked with at least three colors to indicate the scale ranges of the three parts of the ruler, and the at least three colors are arranged in sequence from cool tones to warm tones.

[0031] Furthermore, the measuring device also includes a spring, which is arranged at an end of the pressure head opposite to the slide assembly, and the spring is abutted and connected to the pressure head.

[0032] Furthermore, the upper slide assembly includes a flat stainless steel slide and a flat non-metal slide that are fitted and connected, the flat stainless steel slide is fitted and connected to the upper seat plate, and the flat non-metal slide is fitted and connected to the middle seat plate;

[0033] The lower slide assembly comprises a spherical stainless steel slide and a spherical non-metal slide which are fitted and connected. The spherical stainless steel slide is fitted and connected to the middle seat plate, and the spherical non-metal slide is fitted and connected to the lower seat plate.

[0034] Furthermore, the pressure head abuts against the flat stainless steel slide plate, and the pressure head is vertically arranged to the upper slide plate assembly.

[0035] Furthermore, the pressure head abuts against the spherical stainless steel slide plate, and the pressure head extends from the spring toward the center of the spherical surface.

[0036] Compared with the prior art, the bridge support with a highly visible exposed slide plate described in the utility model has the following advantages:

[0037] The advantage of this technical solution is that a pressure head is set on the slide mechanism of the bridge support, and the wear of the slide is detected by the movement of the pressure head. The pressure head is connected to a display mechanism composed of a scale and a pointer through an unequal-arm lever. The display mechanism is connected to the connecting rod through a speed-increasing transmission mechanism. The transmission mechanism is composed of a rack, a large gear and a small gear connected to the connecting rod, which are meshed in sequence. The scale is attached to the surface of the small gear of the transmission mechanism. Different ranges of change are marked on the surface of the scale by at least three colors that change in sequence from cold to warm tones, thereby realizing real-time monitoring of the exposed height of the slide plate, not being limited by the operating space, improving the accuracy of measurement, eliminating the problem of data volume, simplifying the system and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a bridge bearing of the first embodiment of the utility model;

[0039] Figure 2 It is a structural schematic diagram of a measuring device according to a first embodiment of the utility model;

[0040] Figure 3 This is a schematic structural diagram of a pinion, a scale and a pointer of the first embodiment of the utility model;

[0041] Figure 4 A schematic structural diagram of a bridge support according to a second embodiment of the present utility model;

[0042] Figure 5 It is a schematic structural diagram of a measuring device according to a second embodiment of the present utility model.

[0043] Description of reference numerals:

[0044] 1-upper seat plate, 2-upper slide assembly, 21-flat stainless steel slide, 22-flat non-metallic slide, 3-lower slide assembly, 31-spherical stainless steel slide, 32-spherical non-metallic slide, 4-middle seat plate, 5-measuring device, 51-pressure head, 52-spring, 53-connecting shaft, 54-connecting rod, 55-transmission mechanism, 551-rack, 552-large gear, 553-small gear, 56-pointer, 57-scale, 6-lower seat plate. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] In the present utility model, the descriptions involving "first", "second", "upper", "lower", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "upper", "lower" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the technical solutions between the embodiments can be combined, they are all within the protection scope required by the present utility model.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0048] Embodiment 1

[0049] like Figure 1 As shown, a bridge support with a visible height of a slide plate includes a slide plate mechanism and a measuring device 5. Figure 2 As shown, the measuring device 5 includes a pressure head 51, a display mechanism and a bracket, and the pressure head 51 is connected to the slide mechanism. The display mechanism is connected to the pressure head 51 through a connecting rod 54, and the display mechanism includes a scale 57 and a pointer 56. The scale 57 and the pointer 56 can move relative to each other, and the connecting rod 54 is connected to the scale 57 or the pointer 56. The bracket and the connecting rod 54 are connected by the connecting shaft 53 at a position of the connecting rod 54 close to the pressure head 51. The transmission mechanism 55, the display mechanism is connected to the connecting rod 54 through the transmission mechanism 55, and the transmission mechanism 55 is a speed-increasing transmission mechanism.

[0050] Through the contact between the pressure head 51 and the slide mechanism, when the exposed height of the slide mechanism is reduced due to wear, the pressure head 51 moves accordingly, and the moving distance is transmitted to the display mechanism through the connecting rod 54 and the transmission mechanism 55. The wear of the slide mechanism is small. In order to clearly display the movement of the pressure head 51 and accurately reflect the wear of the slide mechanism, a speed increase transmission mechanism is set between the connecting rod 54 and the display mechanism, so that a small movement of the pressure head 51 causes a large change in the scale 57 or pointer 56 connected to the transmission mechanism 55, so that the operator can clearly see the wear of the slide mechanism. Real-time monitoring of the exposed height of the slide is achieved, without being limited by the operating space, improving the accuracy of measurement, without the problem of data volume, simplifying the system and reducing costs.

[0051] Furthermore, the bridge bearing with the exposed height of the skateboard being visualized also includes: an upper seat plate 1, a middle seat plate 4 and a lower seat plate 6. The middle seat plate 4 has an upper surface and a lower surface facing each other, the upper surface is a plane, and the lower surface is a spherical surface protruding downward. The skateboard mechanism includes: an upper skateboard assembly 2 and a lower skateboard assembly 3. The upper skateboard assembly 2 is connected to the upper surface. The lower skateboard assembly 3 is connected to the lower surface; the bridge bearing is the upper seat plate 1, the upper skateboard assembly 2, the middle seat plate 4, the lower skateboard assembly 3 and the lower skateboard assembly 3 connected in sequence from top to bottom. The bracket is fixed to at least one of the upper seat plate 1, the middle seat plate 4 and the lower seat plate 6.

[0052] The pressure head 51 and the display mechanism are installed through the bracket, and the bracket is fixed on at least one of the upper seat plate 1, the middle seat plate 4 and the lower seat plate 6. The pressure head 51 abuts against one of the upper slide assembly 2 and the lower slide assembly 3 to form a complete combination of the measuring device 5 and the bridge bearing, which is convenient for measuring the exposed height of the slide mechanism.

[0053] Further, the transmission mechanism 55 is a gear transmission mechanism 55, including: a rack 551, a large gear 552 and a small gear 553. The rack 551 is connected to the connecting rod 54. The large gear 552 is rotatably fixed to the bracket, and the large gear 552 is meshed and connected with the rack 551. The small gear 553 is rotatably fixed to the bracket, and the small gear 553 is meshed and connected with the large gear 552. The scale 57 is connected to the small gear 553. The first end of the pointer 56 is kept in a relatively static state with the bracket, and the first end extends toward the scale 57.

[0054] The movement amount of the pressure head 51 is transmitted to the display mechanism through the meshing of the large gear 552 and the rack 551, and the meshing of the large gear 552 and the small gear 553 makes the rotation angle of the small gear 553 greater than the rotation angle of the large gear 552. The scale 57 is connected to the small gear 553, and the rotation of the small gear 553 drives the scale 57 to move accordingly, and the movement amount of the pressure head 51 is magnified and displayed through the scale 57. When in use, the initial positions of the pointer 56 and the scale 57 are adjusted first, and during use, the movement amount of the pressure head 51 is displayed by the movement amount of the scale 57.

[0055] Further, such as Figure 3 As shown, the first end of the pointer 56 is coaxially arranged with the pinion 553. The scale 57 is disc-shaped and is closely connected to one side of the pinion 553, and the scale 57 is located between the pinion 553 and the pointer 56.

[0056] The pinion 553 is fixed to the bracket, the first end of the pointer 56 is coaxially fixedly connected to the pinion shaft, and the pinion 553 is connected to the pinion shaft through a bearing. The scale 57 is made into a disc to form a dial and is attached to the surface of the pinion 553 on the side opposite to the pointer 56. The rotation amount of the pinion 553 is indicated by the change of the rotation amount of the dial indicated by the pointer 56 to show the movement amount of the pressure head 51.

[0057] Furthermore, the connecting rod 54 is generally in a zigzag shape.

[0058] The zigzag connecting rod 54 can further increase the movement amount of the pressing head 51 compared to the straight connecting rod 54 .

[0059] Furthermore, the scales on the ruler 57 are marked with at least three colors to indicate the scale ranges of the three parts of the ruler 57 , and the at least three colors are arranged in sequence from cool to warm tones.

[0060] By arranging from cold to warm colors, the change in the amount of movement of the pressure head 51 is shown, and cold colors represent a smaller amount of movement, and warm colors represent a larger amount of movement. Preferably, four colors can be set, for example, green, yellow, orange, red, etc. As an embodiment, green represents that the exposed height of the skateboard is above 1mm, and the skateboard is used normally; yellow represents that the exposed height of the skateboard is between 0.5mm and 1mm, and it is necessary to strengthen monitoring; orange represents that the exposed height of the skateboard is between 0.2mm and 0.5mm, and measures should be taken as soon as possible; red represents that the exposed height of the skateboard is below 0.2mm, and measures must be taken immediately.

[0061] Furthermore, the measuring device 5 further comprises a spring 52 , which is arranged at an end of the pressure head 51 opposite to the slide assembly, and the spring 52 is abutted against the pressure head 51 .

[0062] The spring 52 ensures that the pressure head 51 is always in contact with the slide mechanism, so as to avoid the inability to measure the change when the slide mechanism is greatly worn.

[0063] Furthermore, the upper slide assembly 2 includes a planar stainless steel slide 21 and a planar non-metallic slide 22 that are fitted and connected, the planar stainless steel slide 21 is fitted and connected to the upper seat plate 1 , and the planar non-metallic slide 22 is fitted and connected to the middle seat plate 4 .

[0064] The lower slide assembly 3 includes a spherical stainless steel slide 31 and a spherical non-metal slide 32 which are fitted and connected. The spherical stainless steel slide 31 is fitted and connected to the middle seat plate 4 , and the spherical non-metal slide 32 is fitted and connected to the lower seat plate 6 .

[0065] The upper slide assembly 2 and the lower slide assembly 3 are both composed of a stainless steel slide and a non-metallic slide to form a slide pair. The two have different hardnesses, which reduces the friction coefficient and improves wear resistance. At the same time, the pressure head 51 is abutted against the stainless steel slide to avoid the friction between the slide and the pressure head 51 to easily cause wear to the slide, resulting in inaccurate measurement results.

[0066] Furthermore, the pressing head 51 abuts against the planar stainless steel slide plate 21 , and the pressing head 51 is vertically arranged to the upper slide plate assembly 2 .

[0067] The bracket is fixed on the middle seat plate 4 , and the pressing head 51 is vertically upward and abutted against the upper slide plate assembly 2 .

[0068] The specific implementation of the first embodiment is described below with reference to specific examples.

[0069] A bridge support with a highly visible exposed skateboard, such as Figure 1 As shown, it is mainly composed of an upper seat plate 1, a flat stainless steel slide plate 21, a flat non-metal slide plate 22, a middle seat plate 4, a spherical stainless steel slide plate 31, a spherical non-metal slide plate 32, a lower seat plate 6, anchor bolts and a measuring device 5. Figure 2 and Figure 3 As shown, the measuring device 5 is installed on the middle seat plate 4, and is composed of a bracket, a pressure head 51, a spring 52, a connecting shaft 53, a connecting rod 54, a rack 551, a large gear 552, a pointer 56, a small gear 553, a dial and other components. The connecting rod 54 is an unequal arm lever. Among them, the upper part of the pressure head 51 abuts against the flat stainless steel slide plate 21 and remains vertical, and the lower part is connected to the spring 52. The dial is installed on the middle seat plate 4 through a bracket, and the scale on the dial can be seen outside the support.

[0070] After the support is assembled, the dial needs to be pre-adjusted according to the initial exposed height of the slide, so that the remaining scale corresponds to the actual exposed height of the slide. The scale of the dial is evenly divided into 3.5mm, and a tool such as a feeler gauge is used to accurately measure the initial exposed height of the slide. Assuming it is 3.1mm, the dial is rotated so that the pointer 56 points to the 3.1mm position. At this time, the dial position where the pointer 56 is located is the green area.

[0071] After the support is installed, the weight of the beam is loaded on the support. Assuming that the support has a primary deformation of 1 mm at this time, the distance between the plane non-metallic slide plate 22 and the plane stainless steel slide plate 21 is reduced, and the plane stainless steel slide plate 21 compresses the pressure head 51 downward, and the pressure head 51 drives the unequal arm lever to rotate around the connecting shaft 53. After the unequal arm lever rotates, the rack 551 moves linearly, and after the rack 551 moves, the large gear 552 rotates, and after the large gear 552 rotates, the small gear 553 rotates. The dial is attached to the surface of the small gear 553, and the pointer 56 is coaxially connected to the small gear 553. As the small gear 553 rotates, the dial rotates, and the indicated position of the pointer 56 on the dial changes. At this time, the pointer 56 points to the 2.1mm position, and the dial position where the pointer 56 is located is still in the green area.

[0072] After the bearing has been in service for a certain number of years, the plane non-metallic slide plate 22 will experience a certain amount of wear. Assuming that the wear rate is 1.3 mm, the distance between the plane non-metallic slide plate 22 and the plane stainless steel slide plate 21 will continue to decrease. The plane stainless steel slide plate 21 will compress the pressure head 51 downward, and the pressure head 51 will drive the unequal arm lever to rotate around the connecting shaft 53. After the unequal arm lever rotates, the rack 551 will move linearly. After the rack 551 moves, the large gear 552 will rotate. After the large gear 552 rotates, the pinion 553 will rotate. The dial is attached to the surface of the pinion 553, and the pointer 56 is fixed at the center of the pinion 553. As the pinion 553 rotates, the dial rotates, and the indicated position of the pointer 56 on the dial changes. At this time, the pointer 56 points to the 0.8 mm position, and the dial position where the pointer 56 is located is the yellow area, and the maintenance of the bearing needs to be strengthened. Monitoring.

[0073] When the bearing continues to serve for a certain number of years, the flat non-metallic slide plate 22 continues to wear 0.5mm, then the pointer 56 points to the 0.3mm position, and the position of the dial where the pointer 56 is located is the orange area, and the bearing should consider taking measures as soon as possible. When the pointer 56 points to the 0.2mm position, the position of the dial where the pointer 56 is located is the red area, and the bearing must take measures immediately.

[0074] The bridge bearing can realize the visualization of the exposed height of the skateboard, and can accurately and quickly detect the exposed height of the skateboard at any time during the operation of the bearing. It has high precision and can quickly grasp the wear of the non-metallic skateboard, so as to timely determine the service life of the bearing. It has a clear principle and simple structure, and can be made into a standard measuring component with low cost and easy use, which can effectively reduce the project cost and the cost of the dynamic monitoring process.

[0075] Embodiment 2

[0076] The second embodiment is substantially the same as the first embodiment, and only the differences are described below.

[0077] like Figure 4 and Figure 5 As shown, the pressing head 51 abuts against the spherical stainless steel slide plate 31, and the pressing head 51 extends from the spring 52 toward the center of the spherical surface.

[0078] The specific implementation of the second embodiment is described below with reference to a specific example.

[0079] A bridge support with a highly visible exposed skateboard, such as Figure 4 and Figure 5 As shown, the support is used to monitor the exposed height of the spherical non-metallic slide plate 32. The difference from Example 1 is that the measuring device 5 is installed on the lower seat plate 6, the upper part of the pressure head 51 abuts against the spherical stainless steel slide plate 31, and the pointer 56 extends toward the center of the sphere, and the dial is installed on the outer side of the lower seat plate 6 through the measuring bracket, and the scale on the dial can be seen outside the support.

[0080] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A bridge support with a highly visible exposed skateboard, characterized in that: include: Skateboard mechanism; The measuring device (5) comprises: A pressure head (51) is abutted and connected with the slide mechanism; a display mechanism connected to the pressure head (51) via a connecting rod (54); the display mechanism comprises a scale (57) and a pointer (56); the scale (57) and the pointer (56) can move relative to each other; the connecting rod (54) is connected to the scale (57) or the pointer (56); A bracket, connected to the connecting rod (54) via a connecting shaft (53) at a position of the connecting rod (54) close to the pressure head (51); A transmission mechanism (55), wherein the display mechanism is connected to the connecting rod (54) via the transmission mechanism (55), and the transmission mechanism (55) is a speed-increasing transmission mechanism.

2. The bridge support with a highly visible skateboard exposure according to claim 1 is characterized in that: Also includes: Upper seat plate (1); The middle seat plate (4) has an upper surface and a lower surface facing each other, the upper surface is a plane, and the lower surface is a spherical surface protruding downward; Lower seat plate(6); The slide plate mechanism comprises: An upper slide assembly (2) connected to the upper surface; A lower slide assembly (3) connected to the lower surface; The bridge support comprises, from top to bottom, the upper seat plate (1), the upper slide plate assembly (2), the middle seat plate (4), the lower slide plate assembly (3) and the lower slide plate assembly (3) which are connected in sequence; The bracket is fixed on at least one of the upper seat plate (1), the middle seat plate (4) and the lower seat plate (6).

3. The bridge support with a highly visible exposed skateboard according to claim 2, characterized in that: The transmission mechanism (55) is a gear transmission mechanism (55) comprising: A rack (551) connected to the connecting rod (54); A large gear (552) is rotatably fixed on the bracket, and the large gear (552) is meshingly connected with the rack (551); A small gear (553) is rotatably fixed on the bracket, and the small gear (553) is meshingly connected with the large gear (552); The scale (57) is connected to the pinion (553); The first end of the pointer (56) remains relatively stationary with respect to the bracket, and the second end extends toward the scale (57).

4. The bridge support with a highly visible exposed skateboard according to claim 3, characterized in that: The first end of the pointer (56) is coaxially arranged with the pinion (553); The scale (57) is disc-shaped and is closely connected to a side surface of the pinion (553), and the scale (57) is located between the pinion (553) and the pointer (56).

5. The bridge support with a highly visible exposed sliding plate according to claim 4, characterized in that: The connecting rod (54) is generally in a zigzag shape.

6. The bridge support with a visible height of a skateboard according to claim 5, characterized in that: The scales on the ruler (57) mark the scale ranges of the three parts of the ruler (57) by at least three colors, and the at least three colors are arranged in sequence from cold to warm tones.

7. The bridge support with a highly visible sliding plate according to claim 6, characterized in that: The measuring device (5) further comprises a spring (52), wherein the spring (52) is arranged at an end of the pressure head (51) opposite to the slide assembly, and the spring (52) is abuttingly connected to the pressure head (51).

8. The bridge bearing with a visible exposed height of a slide plate according to any one of claims 1 to 7, characterized in that: The upper slide plate assembly (2) comprises a planar stainless steel slide plate (21) and a planar non-metallic slide plate (22) which are fitted and connected, wherein the planar stainless steel slide plate (21) is fitted and connected to the upper seat plate (1), and the planar non-metallic slide plate (22) is fitted and connected to the middle seat plate (4); The lower slide assembly (3) comprises a spherical stainless steel slide (31) and a spherical non-metal slide (32) which are fitted and connected, wherein the spherical stainless steel slide (31) is fitted and connected to the middle seat plate (4), and the spherical non-metal slide (32) is fitted and connected to the lower seat plate (6).

9. The bridge support with a highly visible sliding plate according to claim 8, characterized in that: The pressure head (51) abuts against the flat stainless steel slide plate (21), and the pressure head (51) is vertically arranged with respect to the upper slide plate assembly (2).

10. The bridge support with a highly visible sliding plate according to claim 8, characterized in that: The pressure head (51) abuts against the spherical stainless steel slide plate (31), and the pressure head (51) extends from the spring (52) toward the center of the spherical surface.

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