Track connecting line length measuring device

Abstract

The utility model relates to the technical field of track signal engineering, and provides a track connecting line length measuring device which comprises a telescopic rod. One end of the telescopic rod is rotationally connected with a reel; the other end of the telescopic rod is connected with a tensioning piece, and a ruler passing through groove is formed in the tensioning piece. The two fixing fasteners are arranged at the two ends of the telescopic rod respectively; the fixing fastener comprises a fixed claw and a movable claw, the fixed claw is fixed to the end of the telescopic rod, the movable claw is movably connected with the telescopic rod, and the movable claw can be close to or away from the fixed claw in the length direction of the telescopic rod; one end of the flexible ruler is wound on the winding drum, and the other end of the flexible ruler penetrates through the ruler passing through groove. According to the utility model, the technical problems that the conventional measuring tool is difficult to accurately obtain the length of the track connecting line, so that the track connecting line cannot be installed or is easily damaged in later construction, a new track connecting line needs to be replaced, and additional material cost and labor cost are caused can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to track signal engineering technical field, especially track connecting wire length measuring device. BACKGROUND

[0002] In track signal engineering, track connecting wire is a kind of cable for maintaining track circuit continuity and normal track electrical function, including rail lead-in wire, switch jumper, rail jointing wire, branch connecting wire and transverse connecting wire according to different installation positions, and the track connecting wire needs to be measured first before installation, and then the standard cable of corresponding length is selected for installation.

[0003] However, most track connecting wires are combination space curves including straight sections and curved sections, for example, for switch jumper, one end is connected to the plug-in hole of the side surface of one side rail, then bends downward to the lower side of the rail, extends to the lower side of the other side rail along the transverse straight line of the rail, and finally bends upward to the plug-in hole of the side surface of the rail, most existing measuring tools (such as ruler or tape measure) are often only suitable for measuring the length of single straight section cable, and it is difficult to obtain the accurate length of the combination space curve of track connecting wire, which can easily lead to too short or too long cable length selected during installation, resulting in that the track connecting wire cannot be installed or is easily damaged in later construction (such as tamping car tamping ballast bed operation), and thus new track connecting wire needs to be replaced and reinstalled, causing additional material cost and labor cost. SUMMARY

[0004] The utility model aims at overcoming the technical problem that the existing measuring tool is difficult to accurately obtain the length of track connecting wire, leading to that the track connecting wire cannot be installed or is easily damaged in later construction, new track connecting wire needs to be replaced, and thus additional material cost and labor cost are caused, and provides a kind of track connecting wire length measuring device.

[0005] In a first aspect, the utility model provides a kind of track connecting wire length measuring device, comprising:

[0006] Telescopic rod, the length of telescopic rod is adjustable;One end of telescopic rod is rotatably connected with reel, and the axis of reel is perpendicular to the length direction of telescopic rod;The other end of telescopic rod is connected with tension member, and over-size through slot is arranged on tension member;

[0007] Fixed buckle, two fixed buckles are respectively arranged at the two ends of telescopic rod;Fixed buckle includes fixed jaw and movable jaw, and fixed jaw is fixed to the end of telescopic rod, and movable jaw is movably connected with telescopic rod, and movable jaw can be close to or away from fixed jaw along the length direction of telescopic rod;

[0008] Soft ruler, one end of soft ruler is wound on reel, and the other end of soft ruler passes through over-size through slot.

[0009] The rail connecting line length measuring device of the present scheme comprises two parts of a telescopic rod and a flexible ruler, wherein the length of the telescopic rod is adjustable and corresponds to the straight section of the rail connecting line; the length and shape of the flexible ruler are adjustable and correspond to the curved section of the rail connecting line; the telescopic rod is further provided with a fixing buckle, and the telescopic rod can be fixed relative to the steel rail through the fixing buckle.

[0010] When the length of the rail connecting line is to be measured, the telescopic rod is fixed relative to the steel rail through the fixing buckle, and then the combination of the telescopic rod and the flexible ruler is taken as a simulated rail connecting line, and the installation state of the combination is matched with the theoretical installation state of the rail connecting line (for example, the position of the combination relative to the steel rail is matched with the theoretical installation position of the rail connecting line, the length of the straight section is matched with the length of the straight section of the rail connecting line, and the length and shape of the flexible ruler are matched with the length and shape of the curved section of the rail connecting line) by adjusting the position of the telescopic rod relative to the steel rail, the length of the telescopic rod, the length of the flexible ruler and the shape of the flexible ruler, so that the combination accurately reflects the theoretical installation state of the rail connecting line from the three dimensions of position, length and shape. Therefore, the length of the combination is measured at this time, and the accurate theoretical installation length of the rail connecting line can be measured, thereby providing a basis for the subsequent selection of the length of the cable, avoiding the situation that the rail connecting line is too short to be installed or the rail connecting line is too long to cause the material cost to rise and the rail connecting line to be easily damaged in the later construction due to inaccurate measurement of the length of the rail connecting line, and also avoiding the consumption of additional labor cost and additional material cost for replacing or repairing the rail connecting line in the later period.

[0011] When the length of the telescopic rod is adjusted, the winding drum and the tensioning piece at both ends of the telescopic rod can produce a tensioning effect on the flexible ruler, so that the flexible ruler between the winding drum and the tensioning piece is straightened to as accurately reflect the length of the telescopic rod as possible, thereby avoiding the problem that the reading of the flexible ruler is too large due to the relaxation of the flexible ruler.

[0012] Preferably, one end of the telescopic rod connected with the winding drum is provided with a hollow shell, and the winding drum is arranged inside the hollow shell.

[0013] The present scheme can protect the winding drum and the flexible ruler wound on the winding drum, inhibit the erosion of the external environment on the winding drum and the flexible ruler, and be conducive to improving the service life of the flexible ruler.

[0014] Preferably, a helical spring is connected between the winding drum and the hollow shell, and the axis of the helical spring is parallel to the axis of the winding drum.

[0015] On the one hand, the present scheme enables the winding drum to automatically retract the flexible ruler under the elastic force of the helical spring, thereby simplifying the storage step of the staff after completing the measurement; on the other hand, the elastic force of the helical spring can also assist the straightening of the flexible ruler, thereby being conducive to improving the measurement accuracy of the rail connecting line.

[0016] Preferably, an observation window is arranged on the hollow shell, and the position of the observation window matches the position of the end of the telescopic rod.

[0017] The present scheme can facilitate the operator to read the reading of the corresponding position of the flexible ruler through the hollow shell.

[0018] Preferably, the telescopic rod is hollow, and the flexible ruler passes through the inside of the telescopic rod and exits the telescopic rod from the flexible ruler through slot.

[0019] The present scheme makes the flexible ruler pass through the inside of the hollow telescopic rod, which can protect the flexible ruler from damage due to the external environment, and also makes the straightened flexible ruler as close as possible to the axis of the telescopic rod, thereby facilitating the accurate acquisition of the length of the telescopic rod through the flexible ruler, and further facilitating the improvement of the overall measurement accuracy of the subsequent track connection line.

[0020] Preferably, the end of the flexible ruler away from the reel is connected with a ruler hook.

[0021] The present scheme can facilitate the operator to temporarily hang the flexible ruler at the specified position through the ruler hook after pulling the end of the flexible ruler to the specified position, thereby avoiding the need for the operator to always hold the end of the flexible ruler to maintain the shape and position of the flexible ruler.

[0022] Preferably, the ruler hook is provided with a magnet.

[0023] The present scheme can temporarily fix the end of the flexible ruler on the steel rail through the magnet, thereby avoiding the need for the operator to always hold the end of the flexible ruler to maintain the shape and position of the flexible ruler.

[0024] Preferably, the telescopic rod comprises at least two segments, the segments are cylindrical structures, and the adjacent two segments are mutually sleeved, and the mutual approach or departure of the adjacent two segments can adjust the length of the telescopic rod.

[0025] Preferably, the fixed claw and the movable claw are both L-shaped members, the L-shaped member comprises a vertical segment and a horizontal segment, one end of the vertical segment is fixed to the telescopic rod, and the other end of the vertical segment extends in a direction perpendicular to the axis of the telescopic rod; one end of the horizontal segment is connected to the end of the vertical segment away from the telescopic rod, and the other end of the horizontal segment extends in a direction parallel to the axis of the telescopic rod; the horizontal segment of the fixed claw is arranged opposite to the horizontal segment of the movable claw.

[0026] Preferably, the flexible ruler comprises at least one of a steel tape, a silica gel ruler, an iron wire ruler, a rope ruler or a leather ruler.

[0027] Compared with the prior art, the present utility model has the following beneficial effects:

[0028] The utility model provides a kind of track connecting line length measuring device, can be matched by adjusting telescopic rod relative steel rail position, telescopic rod length, soft ruler length and the installation state of the combination of telescopic rod and soft ruler with the theoretical installation state of track connecting line with the way of soft ruler shape, so that the combination can accurately reflect the theoretical installation state of track connecting line from position, length and shape three dimensions, therefore the length of the combination is measured at this time, the accurate theoretical installation length of track connecting line can be measured, to provide basis for the length selection of subsequent cable, avoid the situation that track connecting line is too short to install, or track connecting line is too long to cause material cost to rise and easily be damaged in later construction. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a side view structural schematic diagram of a kind of track connecting line length measuring device of the utility model;

[0030] Figure 2 It is a top view structural schematic diagram of a kind of track connecting line length measuring device of the utility model;

[0031] Figure 3 It is a side view structural schematic diagram of a kind of track connecting line length measuring device and steel rail connection state of the utility model;

[0032] Figure 4 It is the first local enlarged structural schematic diagram of a kind of track connecting line length measuring device of the utility model at over-size through slot;

[0033] Figure 5 It is the second local enlarged structural schematic diagram of a kind of track connecting line length measuring device of the utility model at over-size through slot;

[0034] Figure 6 It is the local enlarged structural schematic diagram of a kind of track connecting line length measuring device of the utility model at hollow shell;

[0035] Figure 7 It is the connecting diagram of switch jumper of embodiment 1;

[0036] Figure 8 It is the connecting diagram of steel rail lead-in line of far choke flow transformer side in embodiment 1;

[0037] Figure 9 It is the connecting diagram of steel rail lead-in line of near choke flow transformer side in embodiment 1;

[0038] Figure 10 It is the first working schematic diagram of a kind of track connecting line length measuring method in embodiment 1;

[0039] Figure 11is a second working schematic diagram of a track connection line length measurement method in embodiment 1;

[0040] Figure 12 is a third working schematic diagram of a track connection line length measurement method in embodiment 1;

[0041] icon:

[0042] 1 - telescopic rod; 10 - segment; 11 - oversize through slot; 12 - fixed claw; 13 - movable claw;

[0043] 2 - winding drum; 3 - flexible ruler; 31 - ruler hook;

[0044] 4 - hollow shell; 41 - observation window;

[0045] 5 - track connection line; 51 - straight section; 52 - curved section;

[0046] 6 - steel rail; 7 - choke transformer. DETAILED DESCRIPTION

[0047] The utility model will be described in further detail below in combination with test examples and specific embodiments. However, this should not be understood as the scope of the above-mentioned subject matter of the utility model being limited to the following examples only, and any technology realized based on the content of the utility model falls within the scope of the utility model.

[0048] In the description of the specific embodiments of the utility model, the orientation or position relationship terms appearing in the description, such as "up", "down", "left", "right", "center", "inside", "outside", etc., are based on the orientation or position relationship expressed in the drawings, or the orientation or position relationship used when the product / equipment / device of the utility model is normally used. These orientation or position relationship terms are only used to facilitate the description of the utility model scheme or simplify the description in the specific embodiments, so as to enable the technical personnel to quickly understand the scheme, and are not intended to indicate or imply that a specific device / component / element must have a specific orientation or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the utility model.

[0049] In addition, if the terms "horizontal", "vertical", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding device / component / element must be absolutely horizontal or vertical or overhanging or parallel, but can be slightly inclined or have a deviation. As "horizontal" only means that its direction is more horizontal relative to "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "overhanging", "parallel" and the like, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8%, more preferably an error / deviation of ±6%, more preferably an error / deviation of ±5%, more preferably an error / deviation of ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the utility model scheme.

[0050] In addition, the terms "first", "second", "third" and the like in the terms are only used to distinguish the same or similar components for description, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0051] In addition, in the description of the embodiments of the utility model, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9 and any other situation, or even more than 9.

[0052] In addition, in the description of the technical scheme of the utility model, unless otherwise specified / limited / limited, the terms "set", "install", "connect", "connect", "set", "lay", "arrange" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, which can be welding, riveting, bolting, screwing and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements.

[0053] Embodiment 1

[0054] As shown in Figures 1 to 6 A rail connecting line length measuring device, comprising a telescopic rod 1, a fixed buckle and a flexible ruler 3.

[0055] The length of the telescopic rod 1 is adjustable; the two ends of the telescopic rod 1 along the length direction are A end and B end respectively, the A end of the telescopic rod 1 is rotatably connected with a winding drum 2, the axis of the winding drum 2 is perpendicular to the length direction of the telescopic rod 1; the B end of the telescopic rod 1 is connected with a tensioning piece, and the tensioning piece is provided with a size passing groove 11, which penetrates the tensioning piece along the length direction of the telescopic rod 1.

[0056] The fixed fastener is used to connect the rail 6 and includes a fixed claw 12 and a movable claw 13. The fixed claw 12 is fixed to the end of the telescopic rod 1, and the movable claw 13 is movably connected to the telescopic rod 1. The movable claw 13 can move closer to or further away from the fixed claw 12 along the length of the telescopic rod 1. The two fixed fasteners are respectively set at both ends (end A and end B) of the telescopic rod 1.

[0057] One end of the flexible ruler 3 is wound around the roll 2, and the other end of the flexible ruler 3 passes through the through groove 11.

[0058] In the above embodiments, the telescopic rod 1 can be an existing product, such as a sleeve-type telescopic rod 1, a threaded telescopic rod 1, a pneumatic telescopic rod 1, a hydraulic telescopic rod 1, or an electric telescopic rod 1; for example Figure 4 and Figure 5 As shown, the telescopic rod 1 includes at least two segments 10, each segment 10 being a cylindrical structure. Two adjacent segments 10 are nested together, allowing them to move away from or closer to each other, thereby changing the overall length of the telescopic rod 1.

[0059] In the above embodiments, the specific forms of the movable connection between the movable claw 13 and the telescopic rod 1 include, but are not limited to: providing a through groove on the movable claw 13 with a size and shape matching the cross-sectional size and shape of the telescopic rod 1, sleeve the movable claw 13 on the telescopic rod 1, so that the movable claw 13 can slide relative to the telescopic rod 1 along the length direction of the telescopic rod 1; providing a slide rail slider mechanism or a lead screw mechanism between the movable claw 13 and the telescopic rod 1, and the length of the slide rail or lead screw is set along the length direction of the telescopic rod 1.

[0060] In optional implementations, such as Figures 4 to 6 As shown, the fixed claw 12 includes a vertical section and a horizontal section. One end of the vertical section is fixed to the telescopic rod 1, and the other end extends in a direction perpendicular to the axis of the telescopic rod 1. One end of the horizontal section is connected to the end of the vertical section away from the telescopic rod 1, and the other end extends in a direction parallel to the axis of the telescopic rod 1, thus forming an "inverted L" shape together with the vertical section to better engage the bottom of the rail 6 and achieve reliable fixing. Correspondingly, the movable claw 13 is also an "inverted L" shape including a vertical section and a horizontal section.

[0061] In the above embodiments, the tensioning member can be either part of end B of the telescopic rod 1 or an independent component connected to the telescopic rod 1; taking the case where the flexible ruler 3 passes through the interior of the hollow telescopic rod 1 as an example, such as Figure 5 As shown, the end plate at end B of the telescopic rod 1 can be used as a tensioning element, and a through groove with a size and shape matching the cross-sectional size and shape of the flexible ruler 3 can be opened on the end plate as a through groove 11 for the ruler; and for the case where the flexible ruler 3 does not pass through the inside of the telescopic rod 1, an additional plate or block can be connected to the outside of the telescopic rod 1 as a tensioning element, and a through groove with a size and shape matching the cross-sectional size and shape of the flexible ruler 3 can be opened on the plate or block as a through groove 11 for the ruler.

[0062] In the above embodiments, the specific structure of the flexible ruler 3 includes but is not limited to a steel tape with scales, a shaped silica gel ruler, a wire ruler, a rope ruler or a leather ruler, as long as it can be bent as shown to simulate the curved section 52 of the track connecting line 5 and can indicate the length. Figure 5

[0063] In optional embodiments, the A end of the telescopic rod 1 is further provided with a hollow shell 4, and the winding drum 2 is arranged inside the hollow shell 4.

[0064] In the above embodiments, a helical spring is connected between the winding drum 2 and the hollow shell 4, the axis of the helical spring is parallel to the axis of the winding drum 2, for driving the winding drum 2 to rotate, and the direction of rotation is the direction of retracting the flexible ruler 3.

[0065] In the above embodiments, as shown in the drawings, an observation window 41 is arranged on the hollow shell 4, and the position of the observation window 41 matches the position of the A end of the telescopic rod 1. Figure 6

[0066] In the above embodiments, as shown in the drawings, the telescopic rod 1 is a hollow structure, and the flexible ruler 3 passes through the inside of the telescopic rod 1 and exits the telescopic rod 1 from the ruler passing slot 11. Figure 4 Figure 5

[0067] In optional embodiments, the end of the flexible ruler 3 away from the winding drum 2 is connected with a ruler hook 31, which can adopt existing products, such as an L-shaped iron sheet used on a tape measure.

[0068] In optional embodiments, a magnet, such as an electromagnet or a permanent magnet, is arranged on the ruler hook 31.

[0069] As shown in the drawings, a track connecting line length measurement method is applied to the track connecting line length measurement device in the embodiments, and includes the following steps: Figures 7 to 12

[0070] S1, the telescopic rod 1 is fixed relative to the steel rail 6 by the fixed fastener; for example, the position of the movable jaw 13 is adjusted so that the distance between the movable jaw 13 and the fixed jaw 12 is greater than the width of the steel rail 6, then the fixed fastener is moved until the steel rail 6 is located between the movable jaw 13 and the fixed jaw 12, and then the position of the movable jaw 13 is adjusted again so that the distance between the movable jaw 13 and the fixed jaw 12 is reduced until the movable jaw 13 and the fixed jaw 12 clamp the steel rail 6.

[0071] S2, the length of the telescopic rod 1 is adjusted so that the length and position of the telescopic rod 1 match the length and position of the straight section 51 of the track connecting line 5; the flexible ruler 3 is pulled out of the ruler passing slot 11, and the length and shape of the pulled-out part of the flexible ruler 3 are adjusted so that the length and shape of the pulled-out part of the flexible ruler 3 match the length and shape of the curved section 52 of the track connecting line 5. ​​​​​

[0072] S3, determine the theoretical length of the track connection line 5 according to the length of the telescopic rod 1 and the length of the part of the flexible ruler 3 pulled out.

[0073] The track connection line 5 length measurement method of the present scheme can associate the telescopic rod 1 and the flexible ruler 3 with the straight line segment 51 and the curved segment 52 of the track connection line 5 in three dimensions of position, length and shape by using the track connection line length measurement device to simulate the theoretical installation state of the track connection line 5, and further can obtain the accurate theoretical length of the track connection line 5 through the length of the telescopic rod 1 and the flexible ruler 3, which has the advantages of high measurement accuracy and simple operation.

[0074] In the optional implementation, when the track connection line 5 is a turnout jumper as shown in Figure 7 The method further comprises the following steps:

[0075] A1, as shown in Figure 10 The two ends of the telescopic rod 1 are respectively clamped on the two side rails 6 by the fixed fastener.

[0076] A2, as shown in Figure 10 The flexible ruler 3 is pulled out of the over-size through slot 11 and bent in a generally "C" shape upwards, and the specific shape and amplitude of the bending are matched with the installation specification of the track connection line 5, until the end of the flexible ruler 3 away from the reel 2 abuts against the designated position on the side surface of the corresponding side rail 6, such as the tacking hole; the reading L1 of the flexible ruler 3 at the end (A end) of the telescopic rod 1 away from the over-size through slot 11 is read, and the reading L2 of the flexible ruler 3 at the over-size through slot 11 (B end) is read.

[0077] A3, determine the theoretical length of the track connection line 5 according to the sum of L1 and L2.

[0078] The present scheme provides one specific measurement method of the track connection line 5 (turnout jumper), which includes a straight line segment 51 and two curved segments 52 at both ends of the straight line segment 51, and the flexible ruler 3 of the track connection line length measurement device can only be stretched out from one end of the telescopic rod 1, so if the length of the turnout jumper is to be measured, generally the flexible ruler 3 is used to simulate and measure one of the curved segments 52 first, and then the orientation of the telescopic rod 1 is reversed, and then the flexible ruler 3 is used to simulate and measure the other curved segment 52.

[0079] But considering the two curved sections 52 of the turnout frog are symmetrical about the horizontal line, the present scheme only simulates one of the curved sections 52 of the turnout frog in step A2 by the tape 3, and then reads L1 including the length of the straight section 51 (the length of the telescopic rod 1) and the length of the curved section 52 (the length of the tape 3 being pulled out), and L2 only including the length of the curved section 52, and the sum of L1 and L2 includes a straight section 51 and two curved sections 52, which can be used to represent the theoretical length of the turnout frog, and there is no need to simulate and measure the other curved section 52 of the turnout frog by the tape 3; that is, the present scheme saves the simulation and measurement steps of one curved section 52, and the operation is more convenient and fast.

[0080] In an optional embodiment, when the track connection line 5 is a steel rail lead-in line on the side of the far choke current transformer 7 as shown in Figure 8 the present scheme further includes the following steps:

[0081] B1, as shown in Figure 11 , the two ends of the telescopic rod 1 are clamped on the two steel rails 6 by the fixed fastener, and the through-slot 11 is located at the steel rail 6 close to the choke current transformer 7, that is, the B end of the telescopic rod 1 is closer to the choke current transformer 7 than the A end.

[0082] B2, as shown in Figure 12 , the tape 3 is pulled out of the through-slot 11 and bent roughly in a "C" shape upwards, and the specific shape and amplitude of the bending are matched with the installation specification of the track connection line 5, so that the end of the tape 3 away from the reel 2 is abutted at a designated position on the side surface of the corresponding steel rail 6, for example, at the nail hole; and the reading L3 of the tape 3 at the end (A end) of the telescopic rod 1 away from the through-slot 11 is read.

[0083] As shown in Figure 11 , the tape 3 is pulled in the direction close to the choke current transformer 7 again, and is bent about 90° downward below the choke current transformer 7, so that the end of the tape 3 is abutted at a designated position of the choke current transformer 7, for example, at the wiring hole; and the specific shape and amplitude of the bending are matched with the installation specification of the track connection line 5; and the reading L4 of the tape 3 at the through-slot 11 (B end) is read.

[0084] It should be noted that the acquisition of L3 and L4 is not sequential, that is, L3 can be acquired first and then L4, or vice versa, L4 can be acquired first and then L3.

[0085] B3, the theoretical length of the track connection line 5 is determined according to the sum of L3 and L4.

[0086] The scheme provides one specific measurement method of the rail connecting line 5 (rail 6 lead-in line), which includes a straight section 51 and two curved sections 52 at both ends of the straight section 51, and one of the curved sections 52 is connected to the spike hole on the side of the rail 6, and the other curved section 52 is connected to the transformer 7; and the tape 3 of the rail connecting line length measuring device can only be stretched out from one end of the telescopic rod 1, so if the length of the rail 6 lead-in line is to be measured, the general situation needs to first simulate and measure one of the curved sections 52 by the tape 3, and then reverse the orientation of the telescopic rod 1, and then simulate and measure the other curved section 52 by the tape 3.

[0087] The scheme sets the through slot 11 towards the transformer 7 from the beginning, and simulates the two curved sections 52 by stretching and bending the tape 3 twice, and reads the corresponding readings L3 and L4; although the curved section 52 for connecting with the side of the rail 6 is not in the actual position of the rail 6 lead-in line, but considering the symmetry of the rail 6, the length of the curved section 52 for connecting with the side of the rail 6 is theoretically the same regardless of which side of the rail 6 it is set to, so the sum of L3 and L4 is still corresponding to the actual length of the rail 6 lead-in line, and there is no need to change the orientation of the telescopic rod 1 again to simulate and measure; that is, the scheme saves a step of changing the orientation of the telescopic rod 1, and the operation is more convenient and fast.

[0088] In an optional embodiment, when the rail connecting line 5 is a rail lead-in line near the transformer 7 as shown in Figure 9 , the method further comprises the following steps:

[0089] C1, as shown in Figure 12 , the B end of the telescopic rod 1 is clamped to the rail 6 near the transformer 7 by a fixed buckle, and the through slot 11 is set towards the transformer 7; and the A end of the telescopic rod 1 can not be fixed in this case, but can also be fixed to the rail 6 on the other side to increase stability.

[0090] C2, as shown in Figure 12 , the tape 3 is pulled out of the through slot 11 and bent in a generally "C" shape upwards, and the specific shape and amplitude of the bending are matched with the installation specification of the rail connecting line 5, so that the end of the tape 3 away from the reel 2 is abutted at a designated position on the side of the corresponding rail 6, such as the spike hole; the reading L5 of the tape 3 at the through slot 11 (B end) is read.

[0091] As shown in Figure 11The soft ruler 3 is shown to be stretched towards the choke transformer 7 and bent about 90° downward of the choke transformer 7, so that the end of the soft ruler 3 abuts at a designated position of the choke transformer 7, such as a wiring hole; the specific shape and amplitude of the bending matches the installation specification of the track connecting line 5; and the reading L6 of the soft ruler 3 at the over-size through slot 11 (B end) is read.

[0092] It should be noted that the acquisition of L5 and L6 is not in sequence, that is, L5 can be acquired first and then L6, or vice versa, L6 can be acquired first and then L5.

[0093] C3, determining the theoretical length of the track connecting line 5 according to the sum of L5 and L6.

[0094] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A track joint wire length measuring device, characterized in that, The utility model relates to a telescopic ruler, which comprises: a telescopic ruler (1) with adjustable length; a winding drum (2) is rotatably connected to one end of the telescopic ruler (1), and the axis of the winding drum (2) is perpendicular to the length direction of the telescopic ruler (1); a tensioning member is connected to the other end of the telescopic ruler (1), and an overlength through slot (11) is arranged on the tensioning member; two fixing buckles are arranged at the two ends of the telescopic ruler (1) respectively; the fixing buckle comprises a fixed claw (12) and a movable claw (13), the fixed claw (12) is fixed to the end of the telescopic ruler (1), the movable claw (13) is movably connected to the telescopic ruler (1), and the movable claw (13) can approach or move away from the fixed claw (12) along the length direction of the telescopic ruler (1); a flexible ruler (3) is wound on the winding drum (2) at one end, and the other end of the flexible ruler (3) passes through the overlength through slot (11).

2. A track joint wire length measuring device according to claim 1, characterised in that, The end of the telescopic ruler (1) connected with the winding drum (2) is provided with a hollow shell (4), and the winding drum (2) is arranged in the hollow shell (4).

3. A track joint length measuring device according to claim 2, characterised in that, A spiral spring is connected between the winding drum (2) and the hollow shell (4), and the axis of the spiral spring is parallel to the axis of the winding drum (2).

4. A track joint length measuring device according to claim 2, wherein, An observation window (41) is arranged on the hollow shell (4), and the position of the observation window (41) matches the position of the end of the telescopic ruler (1).

5. A track connection length measuring device according to any one of claims 1 to 4, characterized in that The telescopic ruler (1) is a hollow structure, the flexible ruler (3) passes through the inside of the telescopic ruler (1) and passes out of the telescopic ruler (1) from the overlength through slot (11).

6. A track connection length measuring device according to any one of claims 1 to 4, characterized in that A ruler hook (31) is connected to the end of the flexible ruler (3) away from the winding drum (2).

7. A track joint length measuring device according to claim 6, wherein, A magnet is arranged on the ruler hook (31).

8. A track link length measuring device according to any one of claims 1 to 4, wherein, The telescopic ruler (1) comprises at least two segments (10), the segments (10) are cylindrical structures, two adjacent segments (10) are sleeved with each other, and the length of the telescopic ruler (1) can be adjusted by the mutual approach or movement away of the two adjacent segments (10).

9. A track link length measuring device according to any one of claims 1 to 4, wherein, The fixed claw (12) and the movable claw (13) are both L-shaped members, the L-shaped member comprises a vertical segment and a horizontal segment, one end of the vertical segment is fixed to the telescopic ruler (1), and the other end of the vertical segment extends in a direction perpendicular to the axis of the telescopic ruler (1); one end of the horizontal segment is connected to the end of the vertical segment away from the telescopic ruler (1), and the other end of the horizontal segment extends in a direction parallel to the axis of the telescopic ruler (1); the horizontal segment of the fixed claw (12) is arranged opposite to the horizontal segment of the movable claw (13).

10. A track connection length measuring device according to any one of claims 1 to 4, characterized in that The flexible ruler (3) comprises at least one of a steel tape ruler, a silica gel ruler, an iron wire ruler, a rope ruler or a leather ruler.

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