A self-locking railway turnout adjustment piece and guardrail assembly

Abstract

The present invention discloses a self-locking railway turnout adjustment piece and a guardrail assembly, and relates to the field of railway technology. The self-locking railway turnout adjustment piece includes a sheet body and a first spring sheet, the outer edge of the sheet body is provided with a notch for clamping a bolt, the first notch wall of the notch is provided with a first mounting groove, the second side wall of the first mounting groove is closer to the opening position of the notch than the first side wall, the first connecting end of the first spring sheet is connected to the bottom wall of the first mounting groove, the first movable end of the first spring sheet extends into the notch, there is a gap between the first spring sheet and the first side wall and the second side wall, when the first movable end rotates to contact the first side wall, the distance between the first movable end and the second notch wall of the notch is greater than the distance between the first movable end and the second notch wall when the first movable end rotates to contact the second side wall, and when the first movable end contacts the second side wall, the first movable end remains extended into the notch. The self-locking railway turnout adjustment piece provided by the present invention can be quickly installed and has a self-locking function.

Description

Technical Field

[0001] The invention relates to the technical field of railways, and in particular to a self-locking railway turnout adjusting piece and a guardrail assembly. Background Art

[0002] In order to prevent the train from derailing due to the collision of the track with the tip of the frog core when the train passes through the turnout from one track to another, or from climbing onto the rail surface or going in the opposite direction, a guardrail assembly is provided on the turnout. The "guardrail wheel flange groove" formed between the guardrail and the guide rail provided by the guardrail assembly can limit the position of the wheel on one side of the wheelset from being too biased towards the center of the track, thereby preventing the wheel on the other side of the wheelset from colliding with the tip of the frog core. The guardrail will wear out after repeated action by the wheels, causing the size of the "guardrail wheel flange groove" to become larger. If the limit is exceeded, the guardrail will lose its protective function and seriously affect driving safety. Therefore, the size of the guardrail wheel flange groove must be controlled by adding or removing adjustment plates between the guardrail and the guardrail support plate to meet the maintenance standard requirements.

[0003] At present, there are mainly two types of adjustment plates on the market: straight groove type and round hole type. The straight groove type can be directly clamped on the bolts connecting the guardrail and the guardrail support plate, which is easy to install, but the adjustment plate can easily loosen and fall off due to vibration or bolt corrosion; the round hole type adjustment plate is stable to install, but the guardrail and the guardrail support plate need to be completely disassembled during the installation process, which is labor-intensive and difficult to operate. Summary of the invention

[0004] The object of the present invention is to provide a self-locking railway turnout adjusting piece, which can be quickly installed and can ensure the stability of the structure after installation.

[0005] Another object of the present invention is to provide a guard rail assembly that can be quickly installed and can ensure structural stability after installation.

[0006] The present invention provides a technical solution:

[0007] A self-locking railway turnout adjustment piece, comprising a sheet body and a first spring sheet, the outer edge of the sheet body is provided with a notch for clamping a bolt, the opposite sides of the notch are respectively provided with a first notch wall and a second notch wall, the first notch wall is provided with a first mounting groove, the opposite sides of the first mounting groove are respectively provided with a first side wall and a second side wall, the second side wall is closer to the opening position of the notch than the first side wall, the first spring sheet is provided with a first connecting end and a first movable end, the first connecting end is connected to the bottom wall of the first mounting groove, the first movable end extends into the notch along the first mounting groove, there are gaps between the first spring sheet and the first side wall and the second side wall, when the first movable end is rotated to contact the first side wall by the force of the bolt, the distance between the first movable end and the second notch wall is greater than the distance between the first movable end and the second notch wall when the first movable end is rotated to contact the second side wall, and when the first movable end contacts the second side wall, the first movable end remains extended into the notch.

[0008] Further, in a direction parallel to the extending direction of the notch, the distance between the first movable end and the opening position of the notch is greater than the distance between the first engaging end and the opening position of the notch.

[0009] Further, in the plane where the sheet body is located, a size of an opening between the first side wall and the first movable end is larger than a size of an opening between the second side wall and the first movable end.

[0010] Further, the opening between the first side wall and the first movable end faces a direction away from an opening position of the notch, and the opening between the second side wall and the first movable end faces a direction close to an opening position of the notch.

[0011] Furthermore, the width of the first elastic sheet gradually decreases from the first connecting end to the first movable end.

[0012] Further, the first side wall includes a first branch segment and a second branch segment, one end of the first branch segment is connected to the bottom of the first mounting groove, the other end of the first branch segment is connected to the second branch segment at an angle, the second branch segment extends to the first notch wall at an end away from the first branch segment, the angle between the second branch segment and the first spring sheet is greater than the angle between the first branch segment and the first spring sheet, and the second branch segment gradually moves away from the first spring sheet from one end connected to the first branch segment to one end away from the first branch segment.

[0013] Further, a first contact surface, a first action surface, a first detachment surface, a first guide sliding surface and a second contact surface are respectively arranged on the first movable end, the first contact surface is arranged corresponding to the first side wall, the second contact surface is arranged corresponding to the second side wall, one end of the first action surface is connected to the first contact surface, the other end of the first action surface is connected to one end of the first detachment surface, one end of the first detachment surface is connected to the first action surface, the other end of the first detachment surface is connected to one end of the first guide sliding surface, the other end of the first guide sliding surface is connected to the second contact surface, and there is an angle between the first action surface and the first guide sliding surface.

[0014] Furthermore, the first action surface is connected to the first contact surface at an angle, and an end of the first action surface connected to the first separation surface is closer to the opening position of the notch than an end of the first action surface connected to the first contact surface.

[0015] Furthermore, the first guide sliding surface is connected to the second contact surface at an angle, and the first guide sliding surface gradually moves away from the opening position of the notch from one end connected to the second contact surface to one end of the first guide sliding surface connected to the first detachment surface, and gradually approaches the position where the center line direction of the notch is located.

[0016] Furthermore, there is a smooth transition between the first separation surface and the first sliding guide surface.

[0017] Furthermore, the self-locking railway turnout adjustment piece also includes a second spring piece, a second mounting groove is provided on the second notch wall, and a third side wall and a fourth side wall are respectively provided on opposite sides of the second mounting groove, and the fourth side wall is closer to the opening position of the notch than the third side wall, and the second spring piece is provided with a second connecting end and a second movable end, the second connecting end is connected to the bottom wall of the second mounting groove, and the second movable end extends into the notch along the second mounting groove, and there is a gap between the second spring piece and the third side wall and the fourth side wall, and when the second movable end is rotated by the force of the bolt to contact the third side wall, the distance between the second movable end and the first notch wall is greater than the distance between the second movable end and the first notch wall when the second movable end is rotated to contact the fourth side wall, and when the second movable end contacts the fourth side wall, the second movable end remains extended into the notch.

[0018] Furthermore, the second mounting groove and the first mounting groove are symmetrically arranged with respect to the center line direction of the notch, and the second elastic sheet and the first elastic sheet are symmetrically arranged with respect to the center line direction of the notch.

[0019] The present invention also provides a guardrail assembly, comprising a guardrail, a guardrail bracket and the self-locking railway turnout adjustment piece, wherein the self-locking railway turnout adjustment piece comprises a sheet body and a first spring sheet, the outer edge of the sheet body is provided with a notch for clamping a bolt, the opposite sides of the notch are respectively provided with a first notch wall and a second notch wall, the first notch wall is provided with a first mounting groove, the opposite sides of the first mounting groove are respectively provided with a first side wall and a second side wall, the second side wall is closer to the opening position of the notch than the first side wall, the first spring sheet is provided with a first connecting end and a first movable end, the first connecting end is connected to the bottom wall of the first mounting groove, the first movable end extends into the notch along the first mounting groove, There are gaps between the first elastic sheet and the first side wall and the second side wall. When the first movable end is rotated to contact the first side wall by the force of the bolt, the distance between the first movable end and the second notch wall is greater than the distance between the first movable end and the second notch wall when the first movable end is rotated to contact the second side wall, and when the first movable end contacts the second side wall, the first movable end remains extended into the notch. The guardrail is fixed to the guardrail bracket by bolts, and the self-locking railway turnout adjustment piece is used to selectively hold the bolt in a position between the guardrail and the guardrail bracket through the notch to adjust the distance between the guardrail and the guardrail bracket.

[0020] Compared with the prior art, the self-locking railway turnout adjustment plate provided by the present invention, in actual application, is located between the guardrail and the guardrail support plate through the notch clamping bolt. In the process of the bolt gradually being inserted into the notch, the bolt gradually pushes the first movable end of the first spring piece to gradually rotate in the direction close to the first side wall. Since when the first movable end is rotated to contact with the first side wall by the action force of the bolt, the distance between the first movable end and the second notch wall is greater than the distance between the first movable end and the second notch wall when the first movable end is rotated to contact with the second side wall, when the first movable end is in contact with the first side wall, the distance between the first movable end and the second notch wall increases compared with the initial state. Therefore, during the rotation process, when the distance between the first movable end and the second notch wall increases to just exceed the diameter of the bolt, the first spring piece is elastically reset. When the first spring piece is pushed downward by the bolt and rotates close to the second side wall, by setting the gap size between the second side wall and the first spring piece, it can be ensured that in the process of the first movable end rotating to contact with the second side wall, the distance between the first movable end and the second notch wall is always greater than the bolt diameter, thereby locking the bolt and preventing it from disengaging. Therefore, the beneficial effects of the self-locking railway turnout adjusting piece provided by the present invention include: it can be installed quickly and has a self-locking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic structural diagram of a self-locking railway turnout adjustment piece provided in a first embodiment of the present invention;

[0023] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0024] Figure 3 for Figure 1 A magnified schematic diagram of the middle B area;

[0025] Figure 4 A schematic structural diagram of a guardrail assembly provided in a second embodiment of the present invention.

[0026] Icon: 100-self-locking railway turnout adjustment piece; 110-piece body; 111-notch; 1111-first notch wall; 1113-second notch wall; 113-first mounting groove; 1131-first side wall; 1132-first branch section; 1133-second side wall; 1134-second branch section; 115-second mounting groove; 1151-third side wall; 1152-third branch section; 1153-fourth side wall; 1154-fourth branch section; 130-first spring piece; 131-first connecting end; 133-first movable end; 1331-first contact surface; 1332-first action surface; 1333-first detachment surface; 1335-first guide sliding surface; 1337-second contact surface; 150-second spring piece; 151-second connecting end; 153-second movable end; 1531-third contact surface; 1532-second action surface; 1533-second detachment surface; 1535-second guide sliding surface; 1537-fourth contact surface; 200-guardrail assembly; 210-guardrail; 230-guardrail bracket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" 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, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] First embodiment

[0035] Please refer to Figure 1 As shown, this embodiment provides a self-locking railway turnout adjustment piece 100, which is applied to the guardrail assembly of the railway turnout to adjust the distance between the guardrail and the guardrail bracket, that is, to adjust the size of the "guardrail wheel flange groove". The self-locking railway turnout adjustment piece 100 provided in this embodiment can be quickly installed and has a self-locking function.

[0036] The self-locking railway turnout adjustment piece 100 provided in this embodiment includes a piece body 110, a first spring piece 130 and a second spring piece 150. The outer edge of the piece body 110 is provided with a notch 111 for clamping a bolt. According to actual application conditions, an expansion opening can be added to the opening position of the notch 111 to facilitate the insertion of the bolt. The first notch wall 1111 and the second notch wall 1113 are respectively provided on opposite sides of the notch 111. The first notch wall 1111 is provided with a first mounting groove 113, and the second notch wall 1113 is provided with a second mounting groove 115. The first spring piece 130 is provided in the first mounting groove 113 and extends into the notch 111. The second spring piece 150 is provided in the second mounting groove 115 and also extends into the notch 111. The first spring piece 130 and the second spring piece 150 are used to deform in the process of the bolt being clamped into the notch 111 so that the bolt can be completely clamped, and are used to prevent the bolt from exiting the notch to achieve locking of the bolt.

[0037] The first mounting groove 113 is connected to the notch 111 from one end thereof to the other end thereof which is far from the notch 111 and gradually approaches the opening position of the notch 111 in the extending direction parallel to the notch 111. Figure 1 The first mounting groove 113 has a first side wall 1131 and a second side wall 1133 disposed on opposite sides thereof. The second side wall 1133 is closer to the opening of the notch 111 than the first side wall 1131, that is, the second side wall 1133 is located below the first side wall 1131.

[0038] The first elastic piece 130 is provided with a first connecting end 131 and a first movable end 133. The first connecting end 131 is connected to the bottom wall of the first installation groove 113, and the first movable end 133 extends into the notch 111 along the first installation groove 113, that is, in a direction parallel to the extension direction of the notch 111, the distance between the first movable end 133 and the opening position of the notch 111 is greater than the distance between the first connecting end 131 and the opening position of the notch 111.

[0039] There are gaps between the first elastic sheet 130 and the first side wall 1131 and the second side wall 1133. When the first movable end 133 is rotated by the force of the bolt to contact the first side wall 1131, the distance between the first movable end 133 and the second notch wall 1113 is greater than the distance between the first movable end 133 and the second notch wall 1113 when the first movable end 133 is rotated to contact the second side wall 1133, and when the first movable end 133 contacts the second side wall 1133, the first movable end 133 remains extended into the notch 111.

[0040] In this embodiment, in order to ensure that the first spring sheet 130 can be sufficiently deformed under the push of the bolt, in actual application, the gap between the first spring sheet 130 and the first side wall 1131 should be adaptively set according to the diameter of the clamped bolt to ensure that the target bolt can be smoothly and completely clamped into the notch 111. In addition, in order to prevent the spring sheet from being pushed to excessively deform when the bolt has a tendency to exit the notch 111, the size of the gap between the first spring sheet 130 and the second side wall 1133 is set to be sufficiently small. That is, in the plane where the sheet body 110 is located, the opening size between the first side wall 1131 and the first movable end 133 is larger than the opening size between the second side wall 1133 and the first movable end 133.

[0041] Furthermore, in the present embodiment, the first side wall 1131 includes a first branch segment 1132 and a second branch segment 1134, one end of the first branch segment 1132 is connected to the bottom of the first mounting groove 113, the other end of the first branch segment 1132 is connected to the second branch segment at an angle of 1134, the second branch segment 1134 extends to the first notch wall 1111 away from one end of the first branch segment 1132, the angle between the second branch segment 1134 and the first elastic sheet 130 is greater than the angle between the first branch segment 1132 and the first elastic sheet 130, and the second branch segment 1134 gradually moves away from the first elastic sheet 130 from one end connected to the first branch segment 1132 to one end away from the first branch segment 1132.

[0042] It can be understood that a convex point facing the first elastic piece 130 is formed at the connection position of the first branch section 1132 and the second branch section 1134. In the process of inserting the bolt into the notch 111, when the first elastic piece 130 is subjected to the force of the bolt, the first elastic piece 130 first rotates with the first connecting end 131 as the rotation fulcrum. After a small rotation stroke, the first elastic piece 130 contacts the convex point formed at the connection position of the first branch section 1132 and the second branch section 1134. Afterwards, under the subsequent force of the bolt, the first elastic piece 130 rotates with the position in contact with the convex point as the rotation fulcrum. Since the second branch section 1134 gradually moves away from the first elastic piece 130 from the end connected to the first branch section 1132 to the end away from the first branch section 1132, the first elastic piece 130 can be deformed to a greater extent under the subsequent force of the bolt, ensuring that the bolt can be inserted smoothly.

[0043] In addition, in order to further ensure that the bolt can be smoothly inserted into the notch 111, in this embodiment, the opening between the first side wall 1131 and the first movable end 133 is facing the direction of the opening position away from the notch 111, and the opening between the second side wall 1133 and the first movable end 133 is facing the direction of the opening position close to the notch 111.

[0044] Please combine Figure 1 and Figure 2The first movable end 133 is respectively provided with a first contact surface 1331, a first action surface 1332, a first detachment surface 1333, a first guide sliding surface 1335 and a second contact surface 1337. The first contact surface 1331 is correspondingly arranged with the first side wall 1131, the second contact surface 1337 is correspondingly arranged with the second side wall 1133, one end of the first action surface 1332 is connected with the first contact surface 1331, the other end of the first action surface 1332 is connected with one end of the first detachment surface 1333, the other end of the first detachment surface 1333 is connected with one end of the first guide sliding surface 1335, the other end of the first guide sliding surface 1335 is connected with the second contact surface 1337, and there is an angle between the first action surface 1332 and the first guide sliding surface 1335.

[0045] To further ensure that the bolt can be smoothly inserted into the notch 111, the first guide surface 1335 gradually approaches the position of the center line direction of the notch 111 from one end connected to the second contact surface 1337 to one end connected to the first disengagement surface 1333. That is, the first guide surface 1335 gradually shrinks from the opening position close to the notch 111 to the end away from the opening position of the notch 111, playing a role in guiding the bolt to slide. In addition, the first action surface 1332 and the first guide surface 1335 have a smooth transition to prevent the bolt from getting stuck when passing over the first elastic sheet 130.

[0046] In this embodiment, the second mounting groove 115 and the first mounting groove 113 are symmetrically arranged with respect to the center line direction of the notch 111, and the second spring piece 150 and the first spring piece 130 are symmetrically arranged with respect to the center line direction of the notch 111. That is, when the notch 111 is inserted with the bolt, the first spring piece 130 and the second spring piece 150 are deformed at the same time, and when the deformation is sufficient, the bolt passes over the first spring piece 130 and the second spring piece 150 at the same time, and the first spring piece 130 and the second spring piece 150 are elastically reset at the same time.

[0047] The second mounting groove 115 gradually approaches the opening position of the notch 111 from one end connected to the notch 111 to the other end away from the notch 111 in the extending direction parallel to the notch 111. The second mounting groove 115 is provided with a third side wall 1151 and a fourth side wall 1153 on two opposite sides thereof, and the third side wall 1151 is closer to the opening position of the notch 111 than the fourth side wall 1153, that is, the fourth side wall 1153 is located below the third side wall 1151.

[0048] The second spring piece 150 is provided with a second connecting end 151 and a second movable end 153. The second connecting end 151 is connected to the bottom wall of the second mounting groove 115. The second movable end 153 extends into the notch 111 along the second mounting groove 115, that is, in a direction parallel to the extension direction of the notch 111, the distance between the second movable end 153 and the opening position of the notch 111 is greater than the distance between the second connecting end 151 and the opening position of the notch 111.

[0049] There are gaps between the second elastic sheet 150 and the third side wall 1151 and the fourth side wall 1153. When the second movable end 153 is rotated by the force of the bolt to contact the third side wall 1151, the distance between the second movable end 153 and the first notch wall 1111 is greater than the distance between the second movable end 153 and the first notch wall 1111 when the second movable end 153 is rotated to contact the fourth side wall 1153, and when the second movable end 153 contacts the fourth side wall 1153, the second movable end 153 remains extended into the notch 111.

[0050] In this embodiment, in order to ensure that the second elastic sheet 150 can be sufficiently deformed under the push of the bolt, in actual application, the gap between the second elastic sheet 150 and the third side wall 1151 should be adaptively set according to the diameter of the clamped bolt to ensure that the target bolt can be smoothly and completely clamped into the notch 111. In addition, in order to prevent the elastic sheet from being pushed to excessively deform when the bolt has a tendency to exit the notch 111, the size of the gap between the second elastic sheet 150 and the fourth side wall 1153 is set to be sufficiently small. That is, in the plane where the sheet body 110 is located, the opening size between the third side wall 1151 and the second movable end 153 is larger than the opening size between the fourth side wall 1153 and the second movable end 153.

[0051] Furthermore, in the present embodiment, the third side wall 1151 includes a third branch segment 1152 and a fourth branch segment 1154, one end of the third branch segment 1152 is connected to the bottom of the second mounting groove 115, the other end of the third branch segment 1152 is connected to the second branch segment at an angle of 1134, the fourth branch segment 1154 extends to the second notch wall 1113 at one end away from the third branch segment 1152, the angle between the fourth branch segment 1154 and the second elastic sheet 150 is greater than the angle between the third branch segment 1152 and the second elastic sheet 150, and the fourth branch segment 1154 gradually moves away from the second elastic sheet 150 from one end connected to the third branch segment 1152 to one end away from the third branch segment 1152.

[0052] It can be understood that a convex point facing the second elastic piece 150 is formed at the connection position of the third branch segment 1152 and the fourth branch segment 1154. In the process of inserting the bolt into the notch 111, when the second elastic piece 150 is subjected to the force of the bolt, the second elastic piece 150 first rotates with the second connecting end 151 as the rotation fulcrum. After a small rotation stroke, the second elastic piece 150 contacts the convex point formed at the connection position of the third branch segment 1152 and the fourth branch segment 1154. Afterwards, under the subsequent force of the bolt, the second elastic piece 150 rotates with the position in contact with the convex point as the rotation fulcrum. Since the fourth branch segment 1154 gradually moves away from the second elastic piece 150 from the end connected to the third branch segment 1152 to the end away from the third branch segment 1152, the second elastic piece 150 can be deformed to a greater extent under the subsequent force of the bolt, ensuring that the bolt can be inserted smoothly.

[0053] In addition, in order to further ensure that the bolt can be smoothly inserted into the notch 111, in this embodiment, the opening between the third side wall 1151 and the second movable end 153 is facing the direction of the opening position away from the notch 111, and the opening between the fourth side wall 1153 and the second movable end 153 is facing the direction of the opening position close to the notch 111.

[0054] Please combine Figure 1 and Figure 3 The second movable end 153 is respectively provided with a third contact surface 1531, a second action surface 1532, a second detachment surface 1533, a second guide sliding surface 1535 and a fourth contact surface 1537. The third contact surface 1531 is correspondingly arranged to the third side wall 1151, and the fourth contact surface 1537 is correspondingly arranged to the fourth side wall 1153. One end of the second action surface 1532 is connected to the third contact surface 1531, and the other end of the second action surface 1532 is connected to one end of the second detachment surface 1533. The other end of the second detachment surface 1533 is connected to one end of the second guide sliding surface 1535, and the other end of the second guide sliding surface 1535 is connected to the fourth contact surface 1537. There is an angle between the second action surface 1532 and the second guide sliding surface 1535.

[0055] Similarly, the second guide sliding surface 1535 gradually approaches the position of the center line direction of the notch 111 from one end connected to the fourth contact surface 1537 to one end connected to the second detachment surface 1533. That is, the second guide sliding surface 1535 gradually shrinks from the opening position close to the notch 111 to the end away from the opening position of the notch 111, playing a role in guiding the bolt to slide. In addition, the second detachment surface 1533 and the second guide sliding surface 1535 have a smooth transition to prevent the bolt from getting stuck when passing over the spring sheet.

[0056] During the installation process of the self-locking railway turnout adjustment piece 100 provided in this embodiment, since the distance between the first disengagement surface 1333 and the second disengagement surface 1533 is smaller than the bolt diameter, the first guide sliding surface 1335 and the second guide sliding surface 1535 first contact the bolt, and the first spring piece 130 and the second spring piece 150 are deformed in the opening direction away from the notch 111, and the distance between the first movable end 133 and the second movable end 153 gradually increases until the first disengagement surface 1333 and the second disengagement surface 1533 contact the bolt, and then the first disengagement surface 1333 and the second disengagement surface 1533 are disengaged from the bolt, and the bolt falls into the bottom of the notch 111. At this time, the first spring piece 130 and the second spring piece 150 return to their initial state, and the distance between the first disengagement surface 1333 and the second disengagement surface 1533 is always smaller than the bolt diameter.

[0057] When the self-locking railway turnout adjustment piece 100 is about to be separated from the bolt, the first action surface 1332 and the second action surface 1532 are in contact with the cylindrical surface of the bolt respectively. Due to the slope design of the first action surface 1332 and the second action surface 1532, a first action force and a second action force are generated respectively after contacting the bolt. The action force 1 is along the length direction of the first spring piece 130 or more toward the opening direction of the notch 111 than this direction, and the second action force is along the length direction of the second spring piece 150 or more toward the opening direction of the notch 111 than this direction. The first force on the first spring piece 130 can be decomposed into a first component force toward the notch 111 and its extension direction and a second component force perpendicular to this component force and directed away from the center line of the notch 111, that is, the second component force is in the horizontal direction, but due to the slope design of the first action surface 1332, under any circumstances, the first component force is always smaller than the second component force, ensuring that after the first movable end 133 of the first spring piece 130 contacts the bolt, the first movable end 133 of the first spring piece 130 moves toward the second contact surface 1337, and does not move toward the first contact surface 1331, resulting in self-locking failure.

[0058] In this embodiment, the first spring piece 130, the second spring piece 150 and the sheet body 110 are in the same plane, and the first spring piece 130, the second spring piece 150 are integrally formed with the sheet body 110. In other embodiments, the first spring piece 130 and the second spring piece 150 can also be connected to the sheet body 110 respectively by welding.

[0059] It is understandable that, in other embodiments, the angles of the first mounting groove 113 and the second mounting groove 115 relative to the extending direction of the notch 111 can also be adaptively adjusted, and the extending directions of the first elastic sheet 130 and the second elastic sheet 150 can be adjusted accordingly. For example, in another embodiment, the ends of the first mounting groove 113 and the second mounting groove 115 that are connected to the notch 111 and the ends that are away from the notch 111 are at the same distance from the opening position of the notch 111 in the extending direction parallel to the notch 111, that is, the first elastic sheet 130 and the second elastic sheet 150 both extend in the horizontal direction. In this case, it is sufficient to ensure that the gap between the first side wall 1131 and the first elastic sheet 130 is greater than the gap between the second side wall 1133 and the first elastic sheet 130, and to ensure that the gap between the third side wall 1151 and the second elastic sheet 150 is greater than the gap between the fourth side wall 1153 and the second elastic sheet 150. In another embodiment, the first installation groove 113 and the second installation groove 115 are respectively connected to the notch 111 at one end and are respectively away from the notch 111 at one end and are gradually away from the opening position of the notch 111 in the extending direction parallel to the notch 111. In this case, it is also necessary to ensure that the gap between the first side wall 1131 and the first elastic sheet 130 is much larger than the gap between the second side wall 1133 and the first elastic sheet 130, and to ensure that the gap between the third side wall 1151 and the second elastic sheet 150 is much larger than the gap between the fourth side wall 1153 and the second elastic sheet 150.

[0060] In the actual application of the self-locking railway turnout adjustment piece 100 provided in the present embodiment, when the bolt is gradually inserted into the notch 111, the bolt pushes the first spring piece 130 and the second spring piece 150 upward at the same time, and the first movable end 133 of the first spring piece 130 gradually approaches the first side wall 1131 and rotates, and the second movable end 153 of the second spring piece 150 gradually approaches the third side wall 1151 and rotates, and the distance between the first movable end 133 and the second movable end 153 gradually increases. When the distance between the first movable end 133 and the second movable end 153 increases to just exceed the diameter of the target bolt, the bolt successfully passes over the first spring piece 130 and the second spring piece 150, and the first spring piece 130 and the second spring piece 150 are elastically reset or partially reset due to plastic deformation, thereby completing the clamping of the bolt. When the bolt has a tendency to disengage from the notch 111, the first spring piece 130 and the second spring piece 150 are pushed downward, and the force on the first spring piece 130 can be decomposed into a first component force toward the notch 111 and its extension direction and a second component force perpendicular to this component force and directed away from the center line of the notch 111, that is, the second component force is in the horizontal direction, but due to the slope design of the first action surface 1332, under any circumstances, the first component force is always smaller than the second component force, ensuring that after the first movable end 133 of the first spring piece 130 contacts the bolt, the first movable end 133 of the first spring piece 130 moves toward the second contact surface 1337, and does not move toward the first contact surface 1331, resulting in self-locking failure. The first movable end 133 rotates close to the second side wall 1133, and the second movable end 153 rotates close to the fourth side wall 1153, and the distance between the first movable end 133 and the second movable end 153 gradually decreases until the first movable end 133 abuts against the second side wall 1133, and the second movable end 153 abuts against the fourth side wall 1153. At this time, the bolt diameter is greater than the distance between the first movable end 133 and the second movable end 153, and the first elastic sheet 130 and the second elastic sheet 150 jointly block the bolt, and the bolt cannot slide into the notch 111. If there is only the first elastic sheet 130 or only the second elastic sheet 150, only one elastic sheet can work according to the above principle, and the elastic sheet and the other notch wall arranged opposite to each other can also work together to block the bolt from sliding out of the notch 111.

[0061] In summary, the self-locking railway turnout adjustment piece 100 provided in this embodiment clamps the bolts through the notch 111, thereby achieving rapid installation and saving labor costs, and also has a self-locking function to prevent falling off.

[0062] Second embodiment

[0063] Please refer to Figure 4The present embodiment provides a guardrail assembly 200, comprising a guardrail 210, a guardrail bracket 230 and the self-locking railway turnout adjustment piece 100 provided in the first embodiment. The guardrail 210 is fixed to the guardrail bracket 230 by bolts. The self-locking railway turnout adjustment piece 100 is used to selectively clamp the bolts in the position between the guardrail 210 and the guardrail bracket 230 through the notch 111 to adjust the distance between the guardrail 210 and the guardrail bracket 230, that is, to adjust the size of the "guardrail wheel flange groove" to meet the restriction effect on the wheel.

[0064] In actual application, the self-locking railway turnout adjustment piece 100, when the bolt is gradually inserted into the notch 111, the bolt pushes the first spring piece 130 and the second spring piece 150 upward at the same time, the first movable end 133 of the first spring piece 130 gradually approaches the first side wall 1131 and rotates, the second movable end 153 of the second spring piece 150 gradually approaches the third side wall 1151 and rotates, and the distance between the first movable end 133 and the second movable end 153 gradually increases. When the distance between the first movable end 133 and the second movable end 153 increases to just exceed the diameter of the target bolt, the bolt successfully passes over the first spring piece 130 and the second spring piece 150, and the first spring piece 130 and the second spring piece 150 are elastically reset or partially reset due to plastic deformation, thereby completing the clamping of the bolt. When the bolt has a tendency to disengage from the notch 111, the first spring piece 130 and the second spring piece 150 are pushed downward, and the force on the first spring piece 130 can be decomposed into a first component force toward the notch 111 and its extension direction and a second component force perpendicular to this component force and directed away from the center line of the notch 111, that is, the second component force is in the horizontal direction, but due to the slope design of the first action surface 1332, under any circumstances, the first component force is always smaller than the second component force, ensuring that after the first movable end 133 of the first spring piece 130 contacts the bolt, the first movable end 133 of the first spring piece 130 moves toward the second contact surface 1337, and does not move toward the first contact surface 1331, resulting in self-locking failure. The first movable end 133 rotates close to the second side wall 1133, and the second movable end 153 rotates close to the fourth side wall 1153, and the distance between the first movable end 133 and the second movable end 153 gradually decreases until the first movable end 133 abuts against the second side wall 1133, and the second movable end 153 abuts against the fourth side wall 1153. At this time, the diameter of the bolt is larger than the distance between the first movable end 133 and the second movable end 153, and the first elastic sheet 130 and the second elastic sheet 150 jointly block the bolt, and the bolt cannot slide into the notch 111.

[0065] Therefore, the guardrail assembly 200 provided in this embodiment is easy to adjust and has a stable and reliable structure.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-locking railway turnout adjustment piece, characterized in that: The locking device is a block diagram of a locking device for locking the locking device in a locking cam portion 220, wherein the locking device is configured to lock the locking device in a locking cam portion 224, wherein the locking device is configured to lock the locking device in a locking cam portion 226. The locking device is configured to lock the locking device in a locking cam portion 228, wherein the locking device is configured to lock the locking device in a locking cam portion 226.

2. The self-locking railway turnout adjustment piece according to claim 1, characterized in that: In a direction parallel to the extending direction of the notch, a distance between the first movable end and an opening position of the notch is greater than a distance between the first engaging end and the opening position of the notch.

3. The self-locking railway turnout adjustment piece according to claim 2, characterized in that: In the plane where the sheet body is located, a size of an opening between the first side wall and the first movable end is greater than a size of an opening between the second side wall and the first movable end.

4. The self-locking railway turnout adjustment piece according to claim 3, characterized in that: The opening between the first side wall and the first movable end faces a direction away from an opening position of the notch.

5. The self-locking railway turnout adjustment piece according to claim 1, characterized in that: From the first connecting end to the first movable end, the width of the first elastic sheet gradually decreases.

6. The self-locking railway turnout adjustment piece according to claim 1, characterized in that: The first side wall includes a first branch segment and a second branch segment, one end of the first branch segment is connected to the bottom of the first mounting groove, the other end of the first branch segment is connected to the second branch segment at an angle, the second branch segment extends to the first notch wall at an end away from the first branch segment, the angle between the second branch segment and the first spring sheet is greater than the angle between the first branch segment and the first spring sheet, and the second branch segment gradually moves away from the first spring sheet from one end connected to the first branch segment to one end away from the first branch segment.

7. The self-locking railway turnout adjustment piece according to claim 1, characterized in that: A first contact surface, a first action surface, a first detachment surface, a first guide sliding surface and a second contact surface are respectively arranged on the first movable end, the first contact surface is arranged corresponding to the first side wall, the second contact surface is arranged corresponding to the second side wall, one end of the first action surface is connected to the first contact surface, the other end of the first action surface is connected to one end of the first detachment surface, one end of the first detachment surface is connected to the first action surface, the other end of the first detachment surface is connected to one end of the first guide sliding surface, the other end of the first guide sliding surface is connected to the second contact surface, and there is an angle between the first action surface and the first guide sliding surface.

8. The self-locking railway turnout adjustment piece according to claim 7, characterized in that: The first action surface is connected to the first contact surface at an angle, and an end of the first action surface connected to the first separation surface is closer to the opening position of the notch than an end of the first action surface connected to the first contact surface.

9. The self-locking railway turnout adjustment piece according to claim 7, characterized in that: The first guide sliding surface is connected to the second contact surface at an angle, and the first guide sliding surface gradually moves away from the opening position of the notch from one end connected to the second contact surface to the end of the first guide sliding surface connected to the first detachment surface, and gradually approaches the position where the center line direction of the notch is located.

10. The self-locking railway turnout adjustment piece according to claim 7, characterized in that: There is a smooth transition between the first action surface and the first separation surface.

11. The self-locking railway turnout adjustment piece according to any one of claims 1 to 10, characterized in that: The self-locking railway turnout adjustment piece also includes a second elastic sheet, a second mounting groove is provided on the second notch wall, and a third side wall and a fourth side wall are respectively provided on opposite sides of the second mounting groove, and the fourth side wall is closer to the opening position of the notch than the third side wall. The second elastic sheet is provided with a second connecting end and a second movable end, the second connecting end is connected to the bottom wall of the second mounting groove, and the second movable end extends into the notch along the second mounting groove. There are gaps between the second elastic sheet and the third side wall and the fourth side wall. When the second movable end is rotated to contact the third side wall by the force of the bolt, the distance between the second movable end and the first notch wall is greater than the distance between the second movable end and the first notch wall when the second movable end is rotated to contact the fourth side wall, and when the second movable end contacts the fourth side wall, the second movable end remains extended into the notch.

12. The self-locking railway turnout adjustment piece according to claim 11, characterized in that: The second mounting groove and the first mounting groove are symmetrically arranged with respect to the center line direction of the notch, and the second elastic sheet and the first elastic sheet are symmetrically arranged with respect to the center line direction of the notch.

13. A guard rail assembly, characterized in that: It comprises a guardrail, a guardrail bracket and a self-locking railway turnout adjustment piece as described in any one of claims 1 to 12, wherein the guardrail is fixed to the guardrail bracket by bolts, and the self-locking railway turnout adjustment piece is used to selectively hold the bolt in a position between the guardrail and the guardrail bracket through the notch to adjust the distance between the guardrail and the guardrail bracket.

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