Train door isolating switch locking tongue clearance measuring tool

Abstract

The present invention discloses a measuring tool for the gap of the isolating switch tongue of a train door, which includes a measuring ruler and a limit bottom plate that can be in close contact with the bottom of the travel switch. One end of the measuring ruler is connected to the limit bottom plate, and the limit bottom plate has a contact surface that can be in close contact with the bottom of the travel switch. The measuring ruler is provided with a first scale and a second scale arranged in the same plane. Among them, the first scale is at a specified first vertical distance from the contact surface, the second scale is at a specified second vertical distance from the contact surface, and the first vertical distance is greater than the second vertical distance. The present invention can facilitate the measurement of the gap between the isolating switch tongue and the travel switch, not only ensuring the measurement accuracy but also improving the measurement efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of measuring tools, and particularly relates to a measuring tool for the gap between the isolating switch lock tongue and the travel switch of a train door. Background Art

[0002] In the prior art, the B6-type train door adopts a plug door produced by OTM Company. When performing door maintenance operations, it is necessary to measure the gap between the isolating switch lock tongue and the travel switch. If the gap is too large, it will cause the lock tongue and the travel switch to be unable to make effective contact after operating the isolating switch, thereby affecting the cutting effect. If the gap is too small, it will cause the travel switch to be triggered by mistake.

[0003] Currently, due to the relatively narrow space between the isolating switch lock tongue and the travel switch, it is impossible to insert a measuring ruler for measurement, and only the gap size can be estimated by visual inspection. During the visual inspection process, if it is found that the parameters are not within the required range, adjustment is required, and the parameters need to be confirmed again after adjustment. If they are still unqualified, further adjustment will be continued. Therefore, the process of "adjust-measure-adjust" will occur repeatedly, seriously affecting the measurement efficiency and accuracy. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a measuring tool for the gap between the isolating switch lock tongue and the travel switch of a train door, which can not only ensure the measurement accuracy but also improve the measurement efficiency.

[0005] The technical solution adopted by the present invention to achieve its purpose is as follows:

[0006] A measuring tool for the gap between the isolating switch lock tongue and the travel switch of a train door includes a measuring ruler and a limit bottom plate that can be in close contact with the bottom of the travel switch. One end of the measuring ruler is connected to the limit bottom plate. The limit bottom plate has a contact surface that can be in close contact with the bottom of the travel switch. The measuring ruler is provided with a first scale and a second scale arranged in the same plane. Among them, the first scale is at a specified first vertical distance from the contact surface, the second scale is at a specified second vertical distance from the contact surface, and the first vertical distance is greater than the second vertical distance.

[0007] Further, the measuring ruler includes a first measuring part and a second measuring part connected integrally. One end of the first measuring part is connected to the limit bottom plate. The first scale and the second scale are both arranged on the second measuring part. Among them, the width of the first measuring part is greater than the width of the second measuring part, and a transition surface is formed at the connection between the first measuring part and the second measuring part. The transition surface is at a specified third vertical distance from the contact surface.

[0008] Further, the connection between the first measuring part and the limiting bottom plate is a chamfered corner structure.

[0009] Further, the aforesaid measuring tool for the clearance between the isolating switch locking tongues of the train door further includes a handle, and the handle is arranged on the measuring scale.

[0010] Further, the handle includes a first hand-held part and a second hand-held part which are integrally connected and arranged perpendicular to each other, wherein one end of the first hand-held part is connected to the measuring scale.

[0011] Further, the first hand-held part is arranged perpendicular to the measuring scale.

[0012] Further, the first vertical distance is 104.5 mm, and the second vertical distance is 102.5 mm.

[0013] Further, both the first scale and the second scale are groove structures arranged horizontally.

[0014] Further, the measuring scale is arranged perpendicular to the limiting bottom plate.

[0015] Further, the measuring tool for the clearance between the isolating switch locking tongues of the train door is of an integral structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] For the measuring tool for the clearance between the isolating switch locking tongues of the train door proposed by the present invention, during measurement, only the contact surface of the limiting bottom plate needs to be closely contacted with the bottom of the travel switch, and then directly observe whether the lower surface of the locking tongue of the isolating switch is located between the first scale and the second scale. It is very convenient to use, which not only improves the measurement efficiency, but also can avoid the measurement error caused by visual inspection estimation, and improves the measurement accuracy. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the measuring tool for the clearance between the isolating switch locking tongues of the train door in an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the usage principle of the measuring tool for the clearance between the isolating switch locking tongues of the train door in an embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1- measuring ruler, 11- first measuring part, 12- second measuring part, 121- first scale, 122- second scale, 2- limit bottom plate, 21- contact surface, 3- handle, 31- first hand-holding part, 32- second hand-holding part, 4- lock tongue, 51- bottom of travel switch, 52- travel switch cam, 53- top surface of travel switch box body. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] Reference Figure 1 and Figure 2 An embodiment of the present invention provides a tool for measuring the gap of a lock tongue of a train door isolation switch, comprising a measuring ruler 1 and a limit bottom plate 2 that can be in close contact with the bottom of a travel switch, one end of the measuring ruler 1 is connected to the limit bottom plate 2, the limit bottom plate 2 has a contact surface 21 that can be in close contact with the bottom of the travel switch, and the measuring ruler 1 is provided with a first scale 121 and a second scale 122 arranged in the same plane, wherein the first scale 121 is at a specified first vertical distance from the contact surface 21, the second scale 122 is at a specified second vertical distance from the contact surface 21, and the first vertical distance is greater than the second vertical distance.

[0026] In this embodiment, the measuring principle of the train door isolation switch lock tongue gap measuring tool is as follows: Figure 2As shown, the clearance between the locking tongue of the door isolating switch of the Type B6 train refers to the vertical distance between the lower surface of the locking tongue 4 and the top of the travel switch cam 52 (assuming it is d1, and 0 < d1 ≤ 2 mm). Considering that this distance is difficult to measure, the distance parameter is considered to be converted into the vertical distance between the bottom 51 of the travel switch and the lower surface of the locking tongue 4 (assuming it is d2, and 0 < d1 ≤ 2 mm). In this way, the direct measurement of the clearance between the locking tongue of the door isolating switch of the Type B6 train is achieved by the method of position measurement. Among them, the above-mentioned first vertical distance is 104.5 mm, and the above-mentioned second vertical distance is 102.5 mm.

[0027] In this embodiment, the usage method of the measuring tool for the clearance between the locking tongue of the train door isolating switch is as follows: Place the measuring tool between the door leaf and the isolating switch. Among them, the limiting bottom plate 2 is in close contact with the bottom 51 of the travel switch. When measuring, observe whether the lower surface of the locking tongue 4 is located between the first scale 121 and the second scale 122.

[0028] The measuring tool for the clearance between the locking tongue of the train door isolating switch in this embodiment has a simple structure. When measuring, only need to make the contact surface 21 of the limiting bottom plate 2 in close contact with the bottom of the travel switch, and then directly observe whether the lower surface of the locking tongue 4 of the isolating switch is located between the first scale 121 and the second scale 122. It is very convenient to use, which not only improves the measurement efficiency, but also can avoid the measurement error caused by visual inspection and estimation, improves the measurement accuracy, so as to ensure that when operating the isolating switch, the locking tongue 4 and the travel switch cam 52 can be effectively contacted, and at the same time ensure that the locking tongue 4 will not cause false triggering of the travel switch.

[0029] Further, referring to Figure 1 and Figure 2 , in an exemplary embodiment, the measuring ruler 1 includes a first measuring portion 11 and a second measuring portion 12 connected integrally. One end of the first measuring portion 11 is connected to the limiting bottom plate 2. The first scale 121 and the second scale 122 are both provided on the second measuring portion 12. Among them, the width of the first measuring portion 11 is greater than the width of the second measuring portion 12, and a transition surface (not marked in the figure) is formed at the connection between the first measuring portion 11 and the second measuring portion 12. The transition surface is at a specified third vertical distance from the contact surface 21.

[0030] In this embodiment, the above-mentioned third vertical distance is determined according to the vertical distance between the bottom 51 of the travel switch and the top surface 53 of the travel switch box body, and it is 60 mm. In this example, based on the above structural design, by designing the measuring ruler 1 with a "different widths" structure, a transition surface can be formed at the connection between the first measuring part 11 and the second measuring part 12 for serving as a reference datum. In this way, during the measurement process, it is only necessary to observe whether the transition surface is flush with the top surface 53 of the travel switch box body to determine whether the top surface (i.e., the above-mentioned contact surface 21) on the limit bottom plate 2 is in close contact with the bottom of the travel switch, so as to facilitate ensuring that during the measurement process, the top surface on the limit bottom plate 2 can be in close contact with the bottom of the travel switch, improving the reliability of the measurement. Among them, preferably, the connection between the first measuring part 11 and the second measuring part 12 is rounded off, so that both the smooth transition between the first measuring part 11 and the second measuring part 12 can be ensured and the contact surface 21 of the limit bottom plate 2 can be in close contact with the bottom 51 of the travel switch. Among them, preferably, the width of the first measuring part 11 is preferably 13 mm, and the width of the second measuring part 12 is preferably 5 mm; the surface of the first measuring part 11 is smooth and can be kept in close contact with the side surface of the travel switch.

[0031] Further, referring to Figure 1 and Figure 2 In an exemplary embodiment, the connection between the first measuring part 11 and the limit bottom plate 2 is a rounded corner structure. In this way, both the smooth transition between the first measuring part 11 and the limit bottom plate 2 can be ensured and the contact surface 21 of the limit bottom plate 2 can be in close contact with the bottom 51 of the travel switch. Among them, preferably, the surface of the limit bottom plate 2 is smooth, its length is 43 mm, its width is 15 mm, and its height is 3 mm.

[0032] Further, referring to Figure 1 and Figure 2 In an exemplary embodiment, the aforementioned measuring tool for measuring the gap between the lock tongue of the train door isolating switch further includes a handle 3, and the handle 3 is arranged on the measuring ruler 1. In this way, by arranging the handle 3 on the measuring ruler 1, it is convenient to insert the whole measuring ruler 1 and the limit bottom plate 2 into the narrow space between the door leaf and the isolating switch for measurement and limitation.

[0033] Further, referring to Figure 1 and Figure 2 In an exemplary embodiment, the handle 3 includes a first hand-held part 31 and a second hand-held part 32 that are integrally connected and arranged perpendicular to each other, wherein one end of the first hand-held part 31 is connected to the measuring ruler 1. Illustratively, the first hand-held part 31 is arranged on a side surface of the first measuring part 11 facing away from the transition surface, and the length extension direction of the second hand-held part 32 is consistent with the orientation of the plane where the first scale 121 (or the second scale 122) is located.

[0034] In this embodiment, based on the above structural design, by designing the handle 3 in an "L" shape, the structure of the handle 3 can better adapt to the structure of the train door itself, so that the measuring ruler 1 and the limit bottom plate 2 can be more conveniently extended into the narrow space between the door leaf and the disconnector for measurement and limitation, which is beneficial to further improve the measurement efficiency; wherein, preferably, the length of the first handheld part 31 is 133 mm, and the length of the second handheld part 32 is 100 mm.

[0035] Further, referring to Figure 1 and Figure 2 , in an exemplary embodiment, the first handheld part 31 and the measuring ruler 1 are arranged perpendicular to each other. Illustratively, the first handheld part 31 is vertically arranged on a side surface of the first measuring part 11 facing away from the transition surface. In this way, it is beneficial to more conveniently extend the measuring ruler 1 and the limit bottom plate 2 as a whole into the narrow space between the door leaf and the disconnector for measurement and limitation, and it is convenient to ensure that the contact surface 21 of the limit bottom plate 2 is in close contact with the bottom 51 of the travel switch.

[0036] Further, referring to Figure 1 and Figure 2 , in an exemplary embodiment, the measuring ruler 1 and the limit bottom plate 2 are arranged perpendicular to each other. Illustratively, the first measuring part 11 is vertically arranged on the limit bottom plate 2, and a smooth transition is made between the first measuring part 11 and the limit bottom plate 2 through a rounded corner structure. In this way, it is more convenient to ensure that the contact surface 21 of the limit bottom plate 2 can be in close contact with the bottom 51 of the travel switch during measurement.

[0037] Further, referring to Figure 1 and Figure 2 , in an exemplary embodiment, both the first scale 121 and the second scale 122 are groove structures arranged horizontally. In this way, it is possible to avoid the first scale 121 and the second scale 122 from being worn and becoming blurred.

[0038] Further, referring to Figure 1 and Figure 2 , the measuring tool for the lock tongue clearance of the train door disconnector in any of the above embodiments is an integral structure, that is, the measuring ruler 1 is respectively connected to the limit bottom plate 2 and the handle 3 to form an integral structure. In this way, when manufacturing this measuring tool, it can be integrally formed (for example, integrally extruded or injection molded through a mold), which is beneficial to reducing the manufacturing cost. Among them, to improve the service life, preferably, this measuring tool is made of wear-resistant materials, such as wear-resistant materials like stainless steel.

[0039] It should be noted that other contents of the measuring tool for the lock tongue clearance of the train door disconnector disclosed in the present invention can be referred to the prior art and will not be elaborated here.

[0040] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Therefore, any modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A measuring tool for the gap of the isolating switch tongue of a train door, characterized in that It includes a measuring ruler and a limit bottom plate that can be in close contact with the bottom of the travel switch. One end of the measuring ruler is connected to the limit bottom plate. The limit bottom plate has a contact surface that can be in close contact with the bottom of the travel switch. The measuring ruler is provided with a first scale and a second scale arranged in the same plane. Among them, the first scale is at a specified first vertical distance from the contact surface, the second scale is at a specified second vertical distance from the contact surface, and the first vertical distance is greater than the second vertical distance; The measuring ruler includes a first measuring part and a second measuring part connected integrally. One end of the first measuring part is connected to the limit bottom plate. The first scale and the second scale are both arranged on the second measuring part. Among them, the width of the first measuring part is greater than the width of the second measuring part, and a transition surface is formed at the connection between the first measuring part and the second measuring part. The transition surface is at a specified third vertical distance from the contact surface; It further includes a handle. The handle is arranged on the measuring ruler. The handle includes a first hand-held part and a second hand-held part connected integrally and arranged perpendicular to each other. Among them, one end of the first hand-held part is connected to the measuring ruler, and the first hand-held part is arranged perpendicular to the measuring ruler; Both the first scale and the second scale are groove structures arranged horizontally; The first hand-held part is vertically arranged on a side surface of the first measuring part facing away from the transition surface.

2. The train door isolating switch locking tongue clearance measuring tool according to claim 1, wherein The connection between the first measuring part and the limit bottom plate is a fillet structure.

3. The train door isolating switch locking tongue clearance measuring tool according to any one of claims 1 or 2, characterized in that The first vertical distance is 104.5 mm, and the second vertical distance is 102.5 mm.

4. The train door isolating switch locking tongue clearance measuring tool according to any one of claims 1 or 2, characterized in that Both the first scale and the second scale are groove structures arranged horizontally.

5. The train door isolating switch locking tongue clearance measuring tool according to any one of claims 1 or 2, characterized in that The measuring ruler and the limit bottom plate are arranged perpendicular to each other.

6. The train door isolation switch locking tongue clearance measuring tool according to any one of claims 1 or 2, characterized in that The measuring tool for the tongue clearance of the train door isolating switch is of an integral structure.

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