Weighing device for railway bridges

Abstract

The utility model provides a kind of weighing device for railway bridge, it is related to railway bridge technical field, the weighing device for railway bridge includes mounting seat, weighing assembly, weighing platform and carrier, the mounting cavity of upwards opening is opened in the mounting seat, the weighing assembly includes the weighing sensor of the bottom surface of the mounting cavity, the weighing platform is located the opening of the mounting cavity above, the lower end of the weighing platform is connected with the weighing sensor by the carrier, and the upper end of the weighing platform is used to connect track plate. The utility model can improve the safety of railway bridge.

Description

Technical Field

[0001] This utility model relates to the field of railway bridge technology, and more specifically, to a weighing device for railway bridges. Background Technology

[0002] Railway bridges are bridge structures specifically designed for railway transportation, used to cross rivers, valleys, roads, or other obstacles, and they play a vital role in the railway system. To ensure the safety of railway bridges, weighing devices are often installed on both sides of the bridge to weigh trains before they cross, ensuring that the total weight of the train is within the bridge's safe load-bearing capacity.

[0003] In related technologies, weighing devices used for railway bridges often include load cells installed under the track slab. However, during heavy rain, there may be a lot of water accumulating under the track slab, and this water may enter the load cell and damage it, affecting the normal operation of the weighing device and compromising the safety of the railway bridge. Utility Model Content

[0004] The problem this invention addresses is how to improve the ease with which weighing sensors are damaged, thereby ensuring the normal operation of the weighing device and enhancing the safety of railway bridges.

[0005] To solve the above problems, this utility model provides a weighing device for railway bridges.

[0006] This utility model provides a weighing device for railway bridges, including a mounting base, a weighing component, a weighing platform, and a carrier. The mounting base has an upward-opening mounting cavity. The weighing component includes a weighing sensor mounted on the bottom surface of the mounting cavity. The weighing platform is located above the opening of the mounting cavity. The lower end of the weighing platform is connected to the weighing sensor through the carrier, and the upper end of the weighing platform is used to connect to the track slab.

[0007] Optionally, the mounting base includes a base plate and a side plate detachably mounted on the upper end of the base plate, the side plate and the base plate together enclosing the mounting cavity.

[0008] Optionally, the bottom of the track plate is provided with a connecting hole, and the weighing platform is provided with a through hole running vertically through it. The weighing device for railway bridges further includes a connecting assembly comprising an expansion tube and a connecting bolt. The expansion tube is inserted into the connecting hole, and the connecting bolt passes through the hole and is inserted into the expansion tube to connect the weighing platform to the track slab.

[0009] Optionally, the upper end of the carrier is provided with a first insertion post, the lower end is provided with a second insertion post, the weighing platform is provided with a first insertion hole that engages with the first insertion post, and the weighing sensor is provided with a second insertion hole that engages with the second insertion post.

[0010] Optionally, the weighing assembly includes a plurality of weighing sensors, which are arranged in an array on the bottom surface of the mounting cavity, and the weighing platform is connected to the plurality of weighing sensors through a plurality of carriers.

[0011] Optionally, the weighing assembly further includes a data processing device electrically connected to the weighing sensor, the data processing device being mounted on the bottom surface of the mounting cavity.

[0012] Optionally, the upper surface of the track slab is provided with a track beam, which is disconnected from the track beam on the adjacent track slab.

[0013] Optionally, the inner circumferential surface of the mounting cavity is provided with an annular baffle extending toward the interior of the mounting cavity, and the annular baffle is located below the weighing platform.

[0014] Optionally, a waterproof cloth is connected between the upper edge of the inner circumferential surface of the annular baffle and the lower edge of the circumferential surface of the weighing platform.

[0015] Optionally, the mounting base, the weighing platform, and the load-bearing body are all made of wear-resistant and corrosion-resistant steel.

[0016] The beneficial effects of this weighing device for railway bridges are as follows: By providing an upward-opening mounting cavity on the mounting base, and installing the load cell on the bottom surface of the mounting cavity, the bottom and sides of the mounting base can jointly surround the load cell. When there is water accumulation under the track slab, the water is blocked by the mounting base and will not flow directly to the load cell, thereby improving the problem of water ingress and damage to the load cell. This ensures the normal operation of the weighing device and improves the safety of the railway bridge. In addition, the weighing platform is located above the opening of the mounting cavity, and the lower end of the weighing platform is connected to the load cell through a carrier. This allows the weighing platform to be relatively higher than the mounting base, so that the upper surface of the weighing platform can fit snugly against the lower surface of the track slab. This facilitates the transfer of load from the track slab to the weighing platform, thereby improving the weighing accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a weighing device for railway bridges according to an embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of a weighing device used in railway bridges; Figure 3 for Figure 1 A partial structural diagram of a weighing device used in railway bridges; Figure 4 This is a partial cross-sectional view of a weighing device for railway bridges according to another embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Mounting base; 11. Mounting cavity; 111. Annular baffle; 112. Waterproof cloth; 12. Base plate; 13. Side plate; 131. Cable guide hole; 2. Weighing platform; 21. First insertion hole; 3. Bearing body; 31. First insertion post; 4. Weighing sensor; 5. Connecting assembly; 6. Data processing equipment; 7. Display; 8. Wire. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0020] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0022] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] This invention provides a weighing device for railway bridges, which can improve the problem of easy damage to weighing sensors, ensure the normal operation of the weighing device, and enhance the safety of railway bridges. The following detailed description is provided with reference to specific embodiments.

[0024] like Figure 1 and Figure 2 As shown in the figure, a weighing device for railway bridges provided by this utility model embodiment includes a mounting base 1, a weighing component, a weighing platform 2, and a carrier 3. The mounting base 1 has an upward-opening mounting cavity 11. The weighing component includes a weighing sensor 4 installed on the bottom surface of the mounting cavity 11. The weighing platform 2 is located above the opening of the mounting cavity 11. The lower end of the weighing platform 2 is connected to the weighing sensor 4 through the carrier 3. The upper end of the weighing platform 2 is used to connect to the track slab.

[0025] In this embodiment, by providing an upward-opening mounting cavity 11 on the mounting base 1, and mounting the load cell 4 on the bottom surface of the mounting cavity 11, the bottom and sides of the mounting base 1 can jointly surround the load cell 4. When there is water accumulation under the track slab, the water is blocked by the mounting base 1 and will not flow directly to the load cell 4, thereby improving the problem of water ingress and damage to the load cell 4, and ensuring the normal operation of the weighing device, thus improving the safety of the railway bridge. In addition, the weighing platform 2 is located above the opening of the mounting cavity 11, and the lower end of the weighing platform 2 is connected to the load cell 4 through the bearing 3. This allows the weighing platform 2 to be relatively higher than the mounting base 1, so that the upper end surface of the weighing platform 2 can fit snugly against the lower end surface of the track slab, which is beneficial for the transfer of load from the track slab to the weighing platform 2, thereby improving the weighing accuracy.

[0026] Optionally, such as Figure 1 and Figure 2 As shown, the mounting base 1 includes a base plate 12 and a side plate 13 detachably mounted on the upper end of the base plate 12. The side plate 13 and the base plate 12 together enclose the mounting cavity 11.

[0027] It should be noted that there are no restrictions on the detachable connection method between the base plate 12 and the side plate 13, such as bolt connection. In addition, a sealing ring can be installed at the connection point between the base plate 12 and the side plate 13 to ensure the waterproofness of the connection between the base plate 12 and the side plate 13.

[0028] In this optional embodiment, by setting the mounting base 1 as a base plate 12 and a side plate 13 detachably mounted on the upper end of the base plate 12, it is convenient to disassemble and install the side plate 13 on the base plate 12, and to facilitate the maintenance and replacement of the weighing components in the mounting cavity 11.

[0029] Optionally, such as Figure 1 As shown, the bottom of the track slab has a connecting hole, and the weighing platform 2 has a through hole running vertically through it; the weighing device for railway bridges also includes a connecting component 5, which includes an expansion tube and a connecting bolt. The expansion tube is used to be inserted into the connecting hole, and the connecting bolt is used to pass through the through hole and be inserted into the expansion tube, so that the weighing platform 2 is connected to the track slab.

[0030] It should be noted that the track slab is usually made of concrete. If bolts are used to directly connect the track slab to the weighing platform 2, it is easy for it to loosen, which will affect the connection strength between the two.

[0031] It should also be noted that there is no limit to the number of connecting components 5. For example, multiple components can be set at intervals along the circumference of the weighing platform 2 to ensure that the weighing platform 2 and the track plate are completely in contact.

[0032] Specifically, the connecting component 5 may also include nuts, which can be screwed onto the lower end of the connecting bolts. By tightening the nuts, the weighing platform 2 can be tightly fitted against the lower end face of the track plate.

[0033] In this optional embodiment, by providing a connecting component 5, which includes an expansion tube and a connecting bolt, the expansion tube can be inserted into the connecting hole, and the connecting bolt can pass through the hole and be inserted into the expansion tube. In this way, when the connecting bolt is screwed into the through hole, the connecting bolt can cause the expansion tube to expand and be locked in the through hole, preventing the connecting bolt from coming loose from the through hole, which helps to improve the connection strength between the weighing platform 2 and the track plate.

[0034] Optionally, such as Figure 1 As shown, the upper end of the carrier 3 is provided with a first insertion post 31 and the lower end is provided with a second insertion post. The weighing platform 2 is provided with a first insertion hole 21 that is inserted and cooperates with the first insertion post 31. The weighing sensor 4 is provided with a second insertion hole that is inserted and cooperates with the second insertion post.

[0035] Specifically, the first insertion hole 21 and the first insertion post 31 can be connected in a tight fit, and the second insertion hole and the second insertion post can also be connected in a tight fit to ensure that they are not easily separated after being inserted.

[0036] In this optional embodiment, a first insertion post 31 is provided at the upper end of the support body 3, and a first insertion hole 21 is provided on the weighing platform 2. The first insertion hole 21 and the first insertion post 31 are inserted and engaged to realize the connection between the weighing platform 2 and the support body 3. The structure is simple and helps to reduce the installation difficulty. At the same time, a second insertion post is provided at the lower end of the support body 3, and a second insertion hole is provided on the weighing sensor 4. The second insertion hole and the second insertion post are inserted and engaged to realize the connection between the weighing sensor 4 and the support body 3. The structure is simple and helps to reduce the installation difficulty.

[0037] Optionally, such as Figure 1 and Figure 3 As shown, the weighing assembly includes a plurality of weighing sensors 4, which are arranged in an array on the bottom surface of the mounting cavity 11. The weighing platform 2 is connected to the plurality of weighing sensors 4 through a plurality of carriers 3.

[0038] It should be noted that an array refers to arranging multiple objects sequentially along one or more directions at a certain interval. For example, there can be four weighing sensors 4. Two are arranged at intervals along the width of the weighing platform 2, and then two sets of weighing sensors 4 are arranged at intervals along the length of the weighing platform 2.

[0039] In this optional embodiment, by arranging multiple weighing sensors 4 in an array on the bottom surface of the mounting cavity 11, it can be ensured that the load on the entire weighing platform 2 is evenly distributed to each weighing sensor 4, so as to more accurately capture the load on the weighing platform 2 and improve the weighing accuracy.

[0040] Optionally, such as Figure 1 and Figure 3 As shown, the weighing assembly also includes a data processing device 6 electrically connected to the weighing sensor 4, and the data processing device 6 is installed on the bottom surface of the mounting cavity 11.

[0041] Specifically, the data processing device 6 and the weighing sensor 4 can be electrically connected via wires. Figure 1 In the illustrated embodiment, the weighing device for railway bridges may further include a display 7. The display 7 is electrically connected to the data processing device 6 via a wire 8 to display the weighing data on the display 7. The display 7 may be an LCD screen. In addition, a wire hole 131 may be provided on the mounting base 1. The wire 8 passes through the wire hole 131 to connect to the display 7 outside the mounting base 1. A sealant may be provided between the hole wall of the wire hole 131 and the wire 8 to ensure that water does not enter the mounting cavity 11 from the wire hole 131.

[0042] In this optional embodiment, by setting a data processing device 6 electrically connected to the weighing sensor 4, the weighing data of the weighing sensor 4 can be processed and transmitted to the display 7 for display. At the same time, by installing the data processing device 6 on the bottom surface of the mounting cavity 11, the data processing device 6 can also be surrounded by the mounting base 1. When there is water accumulation under the track plate, the water is blocked by the mounting base 1 and will not flow directly to the data processing device 6, thus avoiding damage to the data processing device 6 due to water ingress.

[0043] Optionally, the upper surface of the track slab is provided with a track beam, which is disconnected from the track beam on the adjacent track slab.

[0044] In this optional embodiment, because the track beams on the track slab are disconnected from the track beams on the adjacent track slabs, when the train passes over the track beams of that track slab, the track beams will transfer their weight to the track slab due to pressure, and then the track slab will transfer the weight to the weighing sensor 4 via the weighing platform 2, thereby achieving the weighing of the train.

[0045] Optionally, such as Figure 4 As shown, the inner circumferential surface of the mounting cavity 11 is provided with an annular baffle 111 extending toward the interior of the mounting cavity 11, and the annular baffle 111 is located below the weighing platform 2.

[0046] Specifically, the annular baffle 111 can be positioned adjacent to the opening of the mounting cavity 11 to ensure that the mounting cavity 11 has sufficient internal space.

[0047] In this optional embodiment, the annular baffle 111 and the weighing platform 2 can block the space above the mounting cavity 11, making it difficult for water to enter the mounting cavity 11 from above and flow into the weighing sensor 4, thereby reducing the risk of damage to the weighing sensor 4.

[0048] Optionally, such as Figure 4 As shown, a waterproof cloth 112 is connected between the upper edge of the inner circumferential surface of the annular baffle 111 and the lower edge of the circumferential surface of the weighing platform 2.

[0049] In this optional embodiment, by connecting a waterproof cloth 112 between the annular baffle 111 and the weighing platform 2, the waterproof cloth 112 can be retracted along with the weighing platform 2 as it moves down, and the waterproof cloth 112 can also seal the gap between the annular baffle 111 and the weighing platform 2 to further reduce the risk of water ingress and damage to the weighing sensor 4.

[0050] Optionally, the mounting base 1, the weighing platform 2, and the carrier 3 are all made of wear-resistant and corrosion-resistant steel.

[0051] It should be noted that this invention does not limit the specific type of wear-resistant and corrosion-resistant steel; for example, it can be stainless steel. Preferably, the wear-resistant and corrosion-resistant steel is made of high-strength steel to improve the structural strength of the weighing device.

[0052] In this optional embodiment, by selecting wear-resistant and corrosion-resistant steel as the material for the mounting base 1, the weighing platform 2, and the carrier 3, the wear-resistant and corrosion-resistant performance can be improved, thereby increasing the service life of the weighing device.

[0053] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A weighing device for railway bridges, characterized in that, The device includes a mounting base (1), a weighing assembly, a weighing platform (2), and a carrier (3). The mounting base (1) has an upward-opening mounting cavity (11). The weighing assembly includes a weighing sensor (4) mounted on the bottom surface of the mounting cavity (11). The weighing platform (2) is located above the opening of the mounting cavity (11). The lower end of the weighing platform (2) is connected to the weighing sensor (4) through the carrier (3). The upper end of the weighing platform (2) is used to connect to the track plate.

2. Weighing device for railway bridges according to claim 1, characterized in that, The mounting base (1) includes a base plate (12) and a side plate (13) detachably mounted on the upper end of the base plate (12). The side plate (13) and the base plate (12) together enclose the mounting cavity (11).

3. Weighing device for railway bridges according to claim 1, characterized in that, The bottom of the track plate is provided with a connecting hole, and the weighing platform (2) is provided with a through hole that runs vertically through the top and bottom. The weighing device for railway bridges also includes a connecting assembly (5), which includes an expansion tube and a connecting bolt. The expansion tube is inserted into the connecting hole, and the connecting bolt passes through the hole and is inserted into the expansion tube to connect the weighing platform (2) to the track slab.

4. Weighing device for railway bridges according to claim 1, characterized in that, The upper end of the carrier (3) is provided with a first plug-in post (31) and the lower end is provided with a second plug-in post. The weighing platform (2) is provided with a first plug-in hole (21) that is plugged into the first plug-in post (31). The weighing sensor (4) is provided with a second plug-in hole that is plugged into the second plug-in post.

5. The weighing device for railway bridges according to claim 1, characterized in that, The weighing assembly includes a plurality of weighing sensors (4), which are arranged in an array on the bottom surface of the mounting cavity (11). The weighing platform (2) is connected to the plurality of weighing sensors (4) through a plurality of carriers (3).

6. The weighing device for railway bridges according to claim 1, characterized in that, The weighing assembly also includes a data processing device (6) electrically connected to the weighing sensor (4), the data processing device (6) being mounted on the bottom surface of the mounting cavity (11).

7. The weighing device for railway bridges according to claim 1, characterized in that, The upper surface of the track slab is provided with a track beam, which is disconnected from the track beam on the adjacent track slab.

8. The weighing device for railway bridges according to claim 1, characterized in that, The inner circumferential surface of the mounting cavity (11) is provided with an annular baffle (111) extending toward the interior of the mounting cavity (11), and the annular baffle (111) is located below the weighing platform (2).

9. The weighing device for railway bridges according to claim 8, characterized in that, A waterproof cloth (112) is connected between the upper edge of the inner circumferential surface of the annular baffle (111) and the lower edge of the circumferential surface of the weighing platform (2).

10. The weighing device for railway bridges according to claim 1, characterized in that, The mounting base (1), the weighing platform (2), and the carrier (3) are all made of wear-resistant and corrosion-resistant steel.

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