Rapid connection structure of railway clearance bidirectional laser measuring instrument

Abstract

The utility model discloses a quick connecting structure of a railway clearance bidirectional laser measuring instrument, which relates to the technical field of connecting structures, and comprises a first connecting piece and a second connecting piece, the first connecting piece comprises a fixing piece and a clamping part, the fixing piece is fixed at one side end of a shell, and the clamping part is arranged on the end surface, far away from the shell, of the fixing piece; the second connecting piece comprises a mounting part and a protruding part, a fixing hole is formed in the mounting part, the fixing hole is fixed to the carrying trolley through a bolt, the protruding part is integrally arranged in the middle of the mounting part, and the protruding part is matched with the clamping part. When the carrying trolley works, measurement of the building limits on the two sides of the railway line is accomplished in an attached mode, super-flat is not needed in the process, measurement work of the limits on the two sides of the railway is accomplished at a time, manpower is greatly reduced, working time is shortened, and accuracy of measured data is improved.

Description

Technical Field

[0001] This utility model relates to the field of connection structure technology, and in particular to a quick connection structure for a railway clearance bidirectional laser measuring instrument. Background Technology

[0002] Railway clearance is a set of outline dimensions that limits locomotives, rolling stock, their cargo, and equipment along the railway line, ensuring safe train operation. Specifically, railway clearance is a limit cross-sectional profile perpendicular to the track centerline. It specifies the minimum cross-sectional dimensions required for the safe passage of locomotives and rolling stock. Accurate measurement of railway clearance is crucial for ensuring railway transportation safety.

[0003] Currently, traditional measurement methods in railway clearance surveying have many shortcomings. Most construction clearance measurements are done manually, primarily using platform clearance measuring rulers and digital measuring instruments. The drawbacks of this method are that surveyors must operate the instruments manually, and multiple people need to work together simultaneously. Furthermore, because measurements must be completed during railway maintenance windows, the limited time available makes it difficult to meet the enormous workload of timely completion of construction clearance measurements along the railway line.

[0004] The connection between the aforementioned railway clearance measurement tools and the trolley is inconvenient. Therefore, a quick connection structure for a two-way laser measuring instrument for railway clearance is proposed to improve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a quick connection structure for a two-way laser measuring instrument for railway clearance, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a quick connection structure between a railway clearance bidirectional laser measuring instrument and a mounting trolley, comprising a first connecting member and a second connecting member;

[0007] The first connector includes a fixing piece and a snap-fit ​​part. The fixing piece is fixed to one side of the housing, and the snap-fit ​​part is located on the end face of the fixing piece away from the housing.

[0008] The second connector includes a mounting part and a protrusion. The mounting part is provided with a fixing hole, which is fixed to the trolley by bolts. The protrusion is integrally set in the middle of the mounting part and is adapted to the snap-fit ​​part. The measuring instrument is connected to the trolley using a quick connection structure. When the trolley is in operation, it also completes the measurement of the building clearance on both sides of the railway line. In this process, there is no need for leveling, and the clearance measurement work on both sides of the railway is completed in one go, which greatly reduces manpower, shortens working time, and improves the accuracy of measurement data.

[0009] As a further supplement to this solution, two snap-fit ​​parts are symmetrically arranged about the middle of the fixing piece. The snap-fit ​​parts include connecting snap pins and limiting cards. The limiting cards are fixed to the fixing piece by the connecting snap pins.

[0010] A rectangular slot is provided in the middle of the protrusion along its length. One side of the rectangular slot is open, allowing the connecting pin to be inserted. Through the cooperation of the first and second connecting parts, during connection, the pin on the back of the housing is aligned with the open side of the rectangular slot on the protrusion and slid in until it can no longer slide. At this time, the limiting card is located on the outside of the protrusion, realizing the relative fixation between the first and second connecting parts. The measuring instrument is more stable when it moves with the trolley, thus making its measurement data more accurate.

[0011] As a further supplement to this solution, the protrusion height of the protrusion relative to the mounting part is consistent with the length of the connecting pin.

[0012] As a further supplement to this solution, symmetrical guide slopes are provided on both sides of the notch of the rectangular bayonet. The guide slopes can increase the fault tolerance of the card post when it is inserted into the rectangular bayonet, making it easier for the connecting card post to be inserted smoothly into the rectangular bayonet.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] 1. In this utility model, by cooperating with the first connector and the second connector, when connecting, the locking pin on the back of the housing is aligned with the open side of the rectangular slot on the protrusion and slid in until it can no longer slide. At this time, the limiting card is located on the outside of the protrusion, realizing the relative fixation between the first connector and the second connector. The measuring instrument is more stable when it moves with the trolley, thus making its measurement data more accurate.

[0015] 2. In this utility model, guide slopes are symmetrically provided on both sides of the notch of the rectangular bayonet. The guide slopes can increase the fault tolerance of the card post into the rectangular bayonet, making it easier for the connecting card post to be smoothly inserted into the rectangular bayonet, and making the snap-fit ​​operation smoother. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the planar structure of the bidirectional laser measuring instrument in this embodiment, mounted on the trolley.

[0018] Figure 2This is a schematic diagram of the bottom structure of the bidirectional laser measuring instrument in this embodiment;

[0019] Figure 3 This is a side view of the first connector in this embodiment;

[0020] Figure 4 This is a three-dimensional structural diagram of the second connector in this embodiment;

[0021] Figure 5 This is a structural diagram showing the first connector and the second connector connected in this embodiment.

[0022] In the figure: 1. Two-way laser measuring instrument body; 11. Housing; 2. Carrier trolley; 3. First connector; 31. Fixing plate; 32. Connecting pin; 33. Limiting pin; 4. Second connector; 41. Mounting part; 4101. Fixing hole; 42. Protrusion; 4201. Rectangular bayonet; 4202. Guide slope. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Reference Figure 1-5 The diagram shows a quick connection structure for a railway clearance bidirectional laser measuring instrument, including a first connector 3 and a second connector 4. The first connector 3 includes a fixing plate 31 and a snap-fit ​​part. The fixing plate 31 is fixed to one side of the housing 11 of the railway clearance bidirectional laser measuring instrument 1, and the snap-fit ​​part is located on the end face of the fixing plate 31 away from the housing 11. The second connector 4 includes a mounting part 41 and a protrusion 42. The mounting part 41 is provided with a fixing hole 4101, which is fixed to the mounting trolley 2 by bolts. The protrusion 42 is integrally set in the middle of the mounting part 41, and the protrusion 42 is adapted to the snap-fit ​​part. The snap-fit ​​design makes the connection operation more convenient and reliable.

[0025] Specifically, there are two snap-fit ​​parts symmetrically arranged about the middle of the fixing piece 31. The snap-fit ​​part includes a connecting snap post 32 and a limiting card 33. The limiting card 33 is fixed to the fixing piece 31 by the connecting snap post 32. A rectangular slot 4201 is provided in the middle of the protrusion 42 along its length direction. One side of the rectangular slot 4201 is open, allowing the connecting snap post 32 to be inserted. The protrusion height of the protrusion 42 relative to the mounting part 41 is consistent with the length of the connecting snap post 32.

[0026] Based on the above-mentioned cooperation between the first connector 3 and the second connector 4, during connection, the locking pin 32 on the back of the housing 11 is aligned with the open side of the rectangular slot 4201 on the protrusion 42 and slid in until it can no longer slide. At this time, the limiting card 33 is located on the outside of the protrusion 42, realizing the relative fixation between the first connector 3 and the second connector 4. The measuring instrument is more stable when it moves with the trolley 2, thus making its measurement data more accurate.

[0027] To facilitate the smooth insertion of the connecting pin 32 into the rectangular slot 4201, guide slopes 4202 are symmetrically provided on both sides of the notch of the rectangular slot 4201. The guide slopes 4202 can increase the fault tolerance of the pin 32 into the rectangular slot 4201, making the insertion operation smoother.

[0028] The working principle of this utility model is as follows: The mounting part 41 of the second connecting piece 4 is fixed to the middle of the side end of the trolley 2 with bolts. The locking post 32 on the back of the housing 11 is aligned with the open side of the rectangular locking slot 4201 on the protrusion 42 and slid in until it can no longer slide. At this time, the limiting card 33 is located on the outside of the protrusion 42, realizing the relative fixation between the first connecting piece 3 and the second connecting piece 4. The measuring instrument is always kept between the two rails along with the trolley 2. When the trolley 2 is working, it also completes the measurement of the building clearance on both sides of the railway. In this process, there is no need for leveling, and the clearance measurement work on both sides of the railway is completed in one go.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect structure for a bidirectional laser measuring instrument for railway clearance, characterized in that: Includes a first connector (3) and a second connector (4); The first connector (3) includes a fixing piece (31) and a snap-fit ​​part. The fixing piece (31) is fixed to one side of the housing (11) of the railway clearance bidirectional laser measuring instrument, and the snap-fit ​​part is disposed on the end face of the fixing piece (31) away from the housing (11). The second connector (4) includes a mounting part (41) and a protrusion (42). The mounting part (41) is provided with a fixing hole (4101). The fixing hole (4101) is fixed to the trolley (2) by bolts. The protrusion (42) is integrally provided in the middle of the mounting part (41) and is adapted to the snap-fit ​​part.

2. The quick connection structure for a bidirectional laser measuring instrument for railway clearance according to claim 1, characterized in that: Two snap-fit ​​parts are symmetrically arranged about the middle of the fixing piece (31). Each snap-fit ​​part includes a connecting snap post (32) and a limiting card (33). The limiting card (33) is fixed to the fixing piece (31) by the connecting snap post (32). A rectangular slot (4201) is provided in the middle of the protrusion (42) along its length direction. One side of the rectangular slot (4201) is open, and the open side is for the insertion of the connecting pin (32).

3. The quick connection structure for a bidirectional laser measuring instrument for railway clearance according to claim 2, characterized in that: The protrusion height of the protrusion (42) relative to the mounting part (41) is consistent with the length of the connecting pin (32).

4. The quick connection structure for a bidirectional laser measuring instrument for railway clearance according to claim 3, characterized in that: The rectangular bayonet (4201) has guide slopes (4202) symmetrically arranged on both sides of the notch.

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