Sleeper assembly

Abstract

The sleeper assembly comprises a sleeper, a sleeve, a sleeper upper plate and a T-shaped bolt, one end of the sleeve is open, the other end of the sleeve is sealed, the sleeper upper plate is arranged at the open end of the sleeve, the sleeve and the sleeper upper plate are embedded in the sleeper, the side, away from the sleeve, of the sleeper upper plate is exposed out of the upper surface of the sleeper, and the T-shaped bolt is arranged on the side, away from the sleeve, of the sleeper upper plate. A sleeve is arranged on the sleeper upper plate, a retaining rib is further arranged in the sleeve, a first through hole is formed in the sleeper upper plate, the T-shaped bolt penetrates through the first through hole to extend into the sleeve, the T-shaped bolt comprises a head and a rod, the head is in a long round shape, the rod is connected with a nut, the first through hole is a profiling hole of the head, and the head of the T-shaped bolt penetrates through the first through hole to extend into the sleeve. The T-shaped bolt can be limited in the casing pipe through rotation by arranging the stop ribs on the T-shaped bolt, and meanwhile, the stop ribs can limit the T-shaped bolt, so that the T-shaped bolt is prevented from falling into the casing pipe in the installation process, smooth installation of the T-shaped bolt is ensured, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway equipment, in particular to a sleeper assembly. Background Art

[0002] Composite concrete sleepers are a new type of sleeper widely used in railway track systems in recent years. They are an important part of the railway track support structure and are responsible for dispersing and transmitting train loads. The T-bolts in composite concrete sleepers are used to fix sleepers and plate sensors. T-bolts fasten plate sensors to concrete sleepers in conjunction with pads and nuts to ensure the stability and safety of railway lines. However, during the installation of T-bolts, they are prone to fall deep below the sleepers and get stuck, causing great trouble for subsequent installation, thereby reducing work efficiency. Utility Model Content

[0003] In view of this, an object of the utility model is to provide a sleeper assembly, which can effectively prevent T-bolts from falling off during installation and effectively improve installation efficiency.

[0004] The utility model embodiment provides a sleeper assembly, the sleeper assembly comprising:

[0005] The casing has an opening at one end and a seal at the other end, and a retaining rib is arranged inside the casing;

[0006] The sleeper upper plate is arranged at the open end of the sleeve, and the sleeper upper plate is provided with a first through hole;

[0007] The T-bolt comprises a head and a stem, wherein the head is in an oblong shape and the stem is connected with a nut;

[0008] The sleeper, the casing and the sleeper upper plate are all embedded in the sleeper, and the side of the sleeper upper plate away from the casing is exposed on the upper surface of the sleeper;

[0009] The head extends into the sleeve through the first through hole, the retaining rib is configured to limit the T-bolt, and the first through hole is a profile hole of the head, and the T-bolt is limited in the sleeve by rotation.

[0010] Furthermore, the retaining rib is provided with a cutout, the depth of the cutout is less than the thickness of the retaining rib, and the opening of the cutout faces away from the opening end of the sleeve.

[0011] Furthermore, the retaining ribs include transverse ribs and two vertical ribs arranged on the inner wall of the sleeve, the vertical ribs and the transverse ribs form a U-shaped structure with the openings facing the open end of the sleeve, the transverse ribs limit the T-bolt in the axial direction of the sleeve, and the cuts are arranged on the transverse ribs, and the vertical ribs limit the head of the T-bolt in the rotation direction.

[0012] Furthermore, the distance between the two vertical ribs is smaller than the maximum diameter of the head.

[0013] Furthermore, an end surface of the vertical reinforcement away from the transverse reinforcement is lower than or equal to an end surface of the opening end of the sleeve.

[0014] Furthermore, a vertical plane where the transverse rib is located forms an angle with a vertical plane where the longest axis of the first through hole is located.

[0015] Furthermore, a sensor is arranged between the sleeper upper plate and the nut, and a second through hole is arranged on the sensor. The second through hole has the same shape as the first through hole and corresponds in position, and the head passes through the second through hole and the first through hole in sequence and extends into the sleeve.

[0016] Furthermore, an insulating plate is arranged between the sensor and the upper plate of the sleeper, and a third through hole is arranged on the insulating plate. The third through hole has the same shape and corresponding position as the first through hole, and the head passes through the second through hole, the third through hole, and the first through hole in sequence and extends into the sleeve.

[0017] Furthermore, an insulating sleeve and a gasket are provided between the sensor and the nut. The insulating sleeve and the gasket are sleeved on the outside of the rod, and the insulating sleeve is provided between the gasket and the sensor.

[0018] The utility model embodiment provides a sleeper assembly, which includes a sleeper, a sleeve, a sleeper upper plate and a T-bolt, one end of the sleeve is open, and the other end is sealed, the sleeper upper plate is arranged at the open end of the sleeve, and the sleeve and the sleeper upper plate are embedded in the sleeper, and the side of the sleeper upper plate away from the sleeve is exposed on the upper surface of the sleeper, and a retaining rib is also arranged in the sleeve. The sleeper upper plate is provided with a first through hole, and the T-bolt passes through the first through hole and extends into the sleeve, wherein the T-bolt includes a head and a rod, the head is oblong, the rod is connected with a nut, and the first through hole is a profiled hole of the head, and the head of the T-bolt passes through the first through hole and extends into the sleeve, so that the T-bolt can be limited in the sleeve by rotation, and the retaining rib can limit the T-bolt to prevent the T-bolt from falling into the sleeve during installation, thereby ensuring that the installation of the T-bolt is smooth, and effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0020] Figure 1 is a partial cross-sectional view of a sleeper assembly according to an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a sleeper assembly of an embodiment of the utility model without sleepers;

[0022] Figure 3 It is a schematic structural diagram of a sleeve and retaining ribs in an embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the retaining rib of an embodiment of the utility model;

[0024] Figure 5 It is a top view of a T-bolt extending into a sleeve according to an embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the sensor of an embodiment of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the sleeper upper plate of an embodiment of the utility model;

[0027] Figure 8 It is a structural schematic diagram of an insulating plate according to an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 10-sleeper; 20-retaining bar; 21-transverse bar; 22-vertical bar; 23-incision; 30-sleeper upper plate; 31-first through hole; 40-sleeper; 50-T-bolt; 51-head; 52-rod; 53-nut; 60-sensor; 61-second through hole; 70-insulating plate; 71-third through hole; 80-insulating sleeve; 90-gasket. DETAILED DESCRIPTION

[0030] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0031] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0032] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0034] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0035] Figure 1 is a partial cross-sectional view of a sleeper assembly according to an embodiment of the present application. Figure 1 The sleeper assembly in this embodiment includes a sleeper 40, a sleeve 10, a sleeper upper plate 30 and a T-bolt 50. The sleeve 10 and the sleeper upper plate 30 are both embedded in the sleeper 40. One side of the sleeper upper plate 30 is exposed on the upper surface of the sleeper 40, and the other side of the sleeper upper plate 30 is connected to the sleeve 10. One end of the T-bolt 50 passes through the sleeper upper plate 30 and extends into the sleeve 10, and is limited in the sleeve 10, and a nut 53 is provided at the other end of the T-bolt 50. The nut 53 cooperates with the T-bolt 50 to fix the sensor 60 between the sleeper upper plate 30 and the nut 53, thereby completing the installation of the sensor 60.

[0036] The sleeper 40 in this embodiment is a concrete sleeper. The sleeve 10 and the sleeper upper plate 30 are placed in the sleeper 40 before the sleeper 40 is solidified, so that the sleeve 10 and the sleeper upper plate 30 are fixed in the sleeper 40. It can be understood that the sleeve 10 is first fixedly connected to the sleeper upper plate 30 and then placed in the unsolidified sleeper 40 to avoid the relative position of the sleeve 10 and the sleeper upper plate 30 changing during the solidification process of the sleeper 40.

[0037] Figure 2 4 is a schematic diagram of the structure of the sleeper assembly of the present application embodiment without the sleeper 40. Figure 2 One end of the casing 10 is set to be open and the other end is sealed. The sleeper upper plate 30 is set at the open end of the casing 10, and the sealed end of the casing 10 can prevent concrete from flowing into the casing 10. At the same time, the side of the sleeper upper plate 30 away from the casing 10 is exposed to the upper surface of the sleeper 40, so as to expose the first through hole 31 on the sleeper upper plate 30, which is convenient for connection with other structures.

[0038] Furthermore, the sleeper assembly of this embodiment fixes other structures to the sleeper upper plate 30 through T-bolts 50. Figure 2The T-bolt 50 includes a head 51 and a rod 52, and the head 51 is in an oblong shape. The rod 52 of the T-bolt 50 is connected to a nut 53. The sleeper upper plate 30 is provided with a first through hole 31. The first through hole 31 and the sleeve 10 are coaxially arranged to facilitate the installation of the T-bolt. The head 51 of the T-bolt 50 passes through the first through hole 31 of the sleeper upper plate 30 and then extends into the sleeve 10, and then the head 51 is limited in the sleeve 10 by rotation. Figure 7 , the first through hole 31 is a profiling hole of the head 51, that is, the first through hole 31 is an oblong through hole matching the size of the head 51. Therefore, before the T-bolt 50 passes through the first through hole 31, the head 51 needs to be placed so that its longest axis corresponds to the longest axis of the first through hole 31, so that the head 51 can pass through the first through hole 31 without being hindered by the sleeper upper plate 30. After the head 51 passes through the first through hole 31, it rotates a certain angle so that the longest axis of the head 51 no longer corresponds to the longest axis of the first through hole 31, and then the head 51 is vertically limited by the sleeper upper plate 30. The first through hole 31 is set as a through hole profiling the head 51, so that the head 51 can be limited in the sleeve 100 by rotating in the sleeve 10, thereby preventing the T-bolt 50 from falling off from the sleeve 10.

[0039] Reference Figure 1 The sleeper assembly of this embodiment further includes a sensor 60. The sensor 60 is disposed between the sleeper upper plate 30 and the nut 53, and a second through hole 61 is disposed on the sensor 60. Figure 6 The second through hole 61 has the same shape as the first through hole 31 and corresponds in position. The second through hole 61 is a profile hole of the head 51, and the second through hole 61 is coaxially arranged with the first through hole 31. The second through hole 61 is an oblong through hole matching the size of the head 51, and the longest axis of the second through hole 61 corresponds in position to the longest axis of the first through hole 31, so that the head 51 can pass through the second through hole 61 and the first through hole 31 in sequence and extend into the sleeve 10.

[0040] Preferably, the sensor 60 is a plate-type sensor. The plate-type sensor is usually composed of a sensing part and a transmission part, and is mainly used to measure various physical quantities, such as pressure, acceleration, position, speed, etc. Optionally, when selecting the sensor 60, other types of sensors, such as resistive sensors, magnetoelectric sensors, or optical fiber sensors, etc., can also be selected based on comprehensive considerations according to actual needs and application scenarios.

[0041] Further, refer to Figure 1 and Figure 2 An insulating plate 70 is also provided between the sensor 60 and the sleeper upper plate 30. The insulating plate 70 can effectively isolate the electrical connection between the sensor 60 and the sleeper 40, and at the same time improve the stability of the installation of the sensor 60. Figure 8, a third through hole 71 is provided on the insulating plate 70, and the third through hole 71 has the same shape as the first through hole 31. The third through hole 71 is a profile hole of the head 51, and the third through hole 71 is coaxially arranged with the first through hole 31. The third through hole 71 is an oblong through hole matching the size of the head 51, and the longest axis of the second through hole 61, the longest axis of the third through hole 71, and the longest axis of the first through hole 31 correspond to each other, so that the head 51 can pass through the second through hole 61, the third through hole 71, and the first through hole 31 in sequence and extend into the sleeve 10.

[0042] Further, refer to Figure 1 and Figure 2 , an insulating sleeve 80 and a gasket 90 are arranged between the sensor 60 and the nut 53. The insulating sleeve 80 and the gasket 90 are sleeved on the outside of the rod 52. The setting of the insulating sleeve 80 can achieve electrical isolation between the nut 53 and the sensor 60 to ensure the normal operation of the sensor 60. The insulating sleeve 80 is arranged between the gasket 90 and the sensor 60, that is, the gasket 90 is arranged between the nut 53 and the insulating sleeve 80, to ensure the stability of the installation of the nut 53.

[0043] Reference Figure 2 and Figure 3 The sleeve 10 is provided with a retaining rib 20, which can limit the T-bolt 50 inserted into the sleeve 10. The retaining rib 20 is close to the opening end and can limit the depth of the T-bolt 50 inserted into the sleeve 10 to prevent the T-bolt 50 from falling into the sleeve during installation. Figure 4 The retaining rib 20 is also provided with a notch 23 so that the retaining rib 20 can be broken when hit. When the T-bolt 50 is broken due to long-term use or other factors, the retaining rib 20 can be smashed open so that the broken part falls into the sleeve 10, thereby facilitating the installation of a new T-bolt 50, effectively improving the replacement and installation efficiency of the T-bolt 50.

[0044] It is understandable that when the retaining rib 20 needs to be broken open, a tool can be inserted into the sleeve 10 to assist in breaking open the retaining rib 20 so that the broken portion of the T-bolt 50 falls into the sleeve 10 .

[0045] Reference Figure 4 The depth of the cut 23 is less than the thickness of the retaining rib 20, and the opening of the cut 23 faces away from the opening end of the sleeve 10. In other words, the cut 23 cuts the retaining rib 20 from bottom to top but does not cut it off, which is convenient for breaking the retaining rib 20 later, and ensures that the intact T-bolt 50 will not break the retaining rib 20 even if it falls during installation.

[0046] Reference Figure 4The retaining bar 20 includes a transverse bar 21 and two vertical bars 22. The two vertical bars 22 are respectively connected to the inner wall of the sleeve 10, and the transverse bar 21 is connected between the two vertical bars 22. The transverse bar 21 can limit the T-bolt 50 along the axial direction of the sleeve 10. The vertical bar 22 can limit the head 51 in the rotation direction of the T-bolt 50. At the same time, the retaining bar 20 is connected to the sleeve 10 through the vertical bar 22, which ensures the connection strength between the retaining bar 20 and the sleeve 10. There is no direct contact between the transverse bar 21 and the sleeve 10, which effectively reduces the resistance when the transverse bar 21 is smashed. The distance between the transverse bar 21 and the upper plate 30 of the sleeper matches the installation length of the T-bolt 50, which can ensure that the T-bolt 50 extends into the sleeve 10.

[0047] Reference Figure 2-Figure 4 , the horizontal rib 21 and the two vertical ribs 22 form a U-shaped structure, and the opening of the U-shaped structure faces the open end of the sleeve 10. The distance between the two vertical ribs 22 is smaller than the maximum diameter of the head 51, so that the vertical rib 22 can limit the rotation of the head 51 in the sleeve 10. After the T-bolt 50 is inserted into the sleeve 10, the nut 53 needs to be tightened with the rod 52 of the T-bolt 50 to fix the sensor 60, the insulating plate 70 and other structures. During the tightening process, the head 51 rotates a certain angle in the sleeve 10 and then abuts against the vertical rib 22, and the vertical rib 22 provides a certain support force for the head 51. The T-bolt 50 is fixed in a limited position along its own rotation direction by abutting against the vertical rib 22, which facilitates the tightening of the nut 53 and the rod 52.

[0048] Reference Figure 3 The end face of the vertical rib 22 away from the transverse rib 21 is lower than or equal to the end face of the opening end of the sleeve 10, and the two vertical ribs 22 are arranged opposite to each other on the inner wall of the sleeve 10. The transverse rib 21 is horizontally connected between the two vertical ribs 22, and the cutout 23 is arranged on the transverse rib 21.

[0049] Preferably, the retaining rib 20 is formed by bending steel bars, the outer diameter of the bent U-shaped opening is consistent with the inner diameter of the sleeve 10, and the height of the U-shaped structure matches the installation length of the T-bolt 50 to ensure that the retaining rib 20 has sufficient strength to limit the rotation of the T-bolt 50.

[0050] Figure 5 FIG. 5 is a top view of the T-bolt 50 of this embodiment extending into the sleeve 10. Figure 5, the vertical plane where the horizontal rib 21 is located forms an angle with the vertical plane where the longest axis of the first through hole 31 is located. In a certain horizontal plane, there is a certain angle between the projection line of the horizontal rib 21 and the projection line of the longest axis of the first through hole 31. That is, in a certain horizontal plane, a certain angle is formed between the line connecting the two vertical ribs 22 and the longest axis of the first through hole 31, ensuring that the T-bolt 50 has enough room for movement after being inserted into the sleeve 10, making it convenient for the T-bolt 50 to be tightened with the nut 53. In a certain horizontal plane, a certain angle is formed between the line connecting the two vertical ribs 22 and the longest axis of the first through hole 31, which also ensures that the head 51 will not be blocked by the vertical ribs 22 during the process of inserting into the sleeve 10, ensuring that the installation of the T-bolt 50 is completed smoothly.

[0051] The sleeper assembly of this embodiment defines the position of the T-bolt in the casing by setting a U-shaped retaining bar in the casing, thereby avoiding the risk of the T-bolt falling into the casing and ensuring the smooth installation of the T-bolt. At the same time, by setting a cut but not cut incision on the retaining bar, the retaining bar can be easily smashed open under the influence of external force, so that the broken T-bolt falls into the sleeve, which is convenient for installing a new T-bolt. The setting of the U-shaped retaining bar creates a favorable environment for installing and replacing the T-bolt, so that the T-bolt can be installed and replaced smoothly, greatly improving work efficiency.

[0052] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sleeper assembly, characterized in that: The sleeper assembly comprises: A sleeve (10) having one end being open and the other end being sealed, wherein a retaining rib (20) is arranged inside the sleeve (10); A sleeper upper plate (30) is arranged at the open end of the sleeve (10), and the sleeper upper plate (30) is provided with a first through hole (31); A T-shaped bolt (50) comprises a head (51) and a stem (52), wherein the head (51) is in an oblong shape, and the stem (52) is connected to a nut (53); A sleeper (40), wherein the sleeve (10) and the sleeper upper plate (30) are both embedded in the sleeper (40), and a side of the sleeper upper plate (30) away from the sleeve (10) is exposed on the upper surface of the sleeper (40); The head (51) passes through the first through hole (31) and extends into the sleeve (10); the retaining rib (20) is configured to limit the T-bolt (50); the first through hole (31) is a shaped hole of the head (51); and the T-bolt (50) is limited in the sleeve (10) by rotation.

2. The sleeper assembly according to claim 1, characterized in that: The retaining rib (20) is provided with a cutout (23), the depth of the cutout (23) is less than the thickness of the retaining rib (20), and the opening of the cutout (23) faces away from the opening end of the sleeve (10).

3. The sleeper assembly according to claim 2, characterized in that: The retaining rib (20) comprises a transverse rib (21) and two vertical ribs (22) arranged on the inner wall of the sleeve (10), the vertical ribs (22) and the transverse rib (21) forming a U-shaped structure and opening toward the open end of the sleeve (10), the transverse rib (21) limiting the position of the T-bolt (50) in the axial direction of the sleeve (10), and the cutout (23) is arranged on the transverse rib (21), and the vertical rib (22) limiting the position of the head (51) in the rotation direction of the T-bolt (50).

4. The sleeper assembly according to claim 3, characterized in that: The distance between the two vertical ribs (22) is smaller than the maximum diameter of the head (51).

5. The sleeper assembly according to claim 3, characterized in that: An end surface of the vertical rib (22) away from the transverse rib (21) is lower than or equal to an end surface of the opening end of the sleeve (10).

6. The sleeper assembly according to claim 3, characterized in that: The vertical plane where the transverse rib (21) is located forms an angle with the vertical plane where the longest axis of the first through hole (31) is located.

7. The sleeper assembly according to claim 1, characterized in that A sensor (60) is arranged between the sleeper upper plate (30) and the nut (53), and a second through hole (61) is arranged on the sensor (60). The second through hole (61) and the first through hole (31) have the same shape and corresponding positions, and the head (51) passes through the second through hole (61) and the first through hole (31) in sequence and extends into the sleeve (10).

8. The sleeper assembly according to claim 7, characterized in that An insulating plate (70) is also provided between the sensor (60) and the sleeper upper plate (30), and a third through hole (71) is provided on the insulating plate (70); the third through hole (71) and the first through hole (31) have the same shape and corresponding positions, and the head (51) passes through the second through hole (61), the third through hole (71), and the first through hole (31) in sequence and extends into the sleeve (10).

9. The sleeper assembly according to claim 7, characterized in that: An insulating sleeve (80) and a gasket (90) are provided between the sensor (60) and the nut (53); the insulating sleeve (80) and the gasket (90) are sleeved on the outside of the rod (52), and the insulating sleeve (80) is provided between the gasket (90) and the sensor (60).

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