Rapid dismounting and mounting mechanism for GNSS receiving module of railway track inspection tester

Abstract

The utility model discloses a rapid dismounting and mounting mechanism for a GNSS receiving module of a railway track inspection tester, which comprises a relative measurement unit of the railway track inspection tester, takes a GNSS receiver as an external geometric parameter measurement device, and consists of the GNSS receiver, an upper connecting rod, a lower connecting rod, a locking nut and a base station base, the upper connecting rod, the lower connecting rod and the locking nut are combined into a whole to be placed in an aviation case, when field work is prepared, the lower connecting rod is aligned to a base station base, the locking nut is tightened to press the lower connecting rod, then the GNSS receiver is tightened on the upper connecting rod through the quick disassembly and assembly structure, and the GNSS receiver can be conveniently and quickly taken down through the quick disassembly and assembly structure. And meanwhile, the taking-down convenience is guaranteed, rapid disassembly and assembly of the GNSS external geometric parameter measurement module are achieved, the fit clearance between the lower connecting rod and the base station base is 0.01 mm, a protrusion is arranged outside the lower connecting rod and corresponds to the base station base, and the repeated assembly precision of the GNSS external geometric parameter measurement module is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of railway track inspection, in particular to a rapid disassembly and assembly mechanism of a GNSS receiving module of a railway track inspection instrument. Background Art

[0002] To meet the maintenance needs of conventional railway lines, the GJY-TW-RS-BⅢ GNSS Railway Track Inspector, developed using GNSS technology and inertial measurement principles, is designed for high-precision measurement of internal and external geometric parameters of conventional railway tracks. This instrument utilizes the Beidou satellite navigation system and inertial trajectory measurement principles to measure the line, complete the three-dimensional coordinates of the line center, and reconstruct the line shape. It can also obtain line offset information without a designed alignment. If alignment parameters are available, the software can import line data and automatically calculate the deviation values ​​of the external geometric parameters to guide maintenance operations by the engineering department, ultimately achieving the goal of simultaneously controlling the alignment and track smoothness of conventional railway lines. The GNSS track inspection instrument is based on the GNSS control network and uses absolute and relative measurement modes to measure tracks, making the track measurement results more accurate, automated, and highly precise. The measurement results can guide large-scale track maintenance machinery to implement digital precision tamping operations, replacing the traditional manual operation method with lower precision. It comprehensively promotes the precision measurement and tamping of conventional railway tracks and further improves the measurement level and maintenance quality of conventional railway tracks. Existing GNSS receivers are difficult to quickly disassemble and assemble when in use, resulting in low efficiency and poor practicality. Utility Model Content

[0003] The purpose of the utility model is to provide a rapid disassembly and assembly mechanism for a GNSS receiving module of a railway track inspection instrument, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quick disassembly and assembly mechanism of a GNSS receiving module of a railway track inspection instrument, comprising a relative measuring unit of the railway track inspection instrument, the surface of the relative measuring unit of the railway track inspection instrument being connected to a base station base by screws, a lower connecting rod being inserted into the inner wall of the base station base, a locking nut being screwed onto the outer wall of the lower connecting rod, and the locking nut being screwed to the outer wall of the base station base, an upper connecting rod being screwed onto the upper end of the inner wall of the lower connecting rod, and a GNSS receiver being connected to the upper end of the inner wall of the upper connecting rod via a quick disassembly and assembly structure.

[0005] Preferably, the quick-disassembly structure includes a screw buckle, which is fixedly assembled on the lower end of the GNSS receiver, and the surface of the upper connecting rod is fixedly assembled with a support sleeve, and the screw buckle is threadedly assembled on the outer wall of the support sleeve, and the lower end of the inner wall of the screw buckle is fixedly assembled with an insertion rod, and the insertion rod is inserted into the inner wall of the upper connecting rod, and the inner wall of the upper connecting rod is fixedly assembled with a sleeve, and the inner wall of the sleeve is inserted with a push rod, and the outer wall of the push rod is fixedly assembled with a sleeve plate, and the outer wall of the sleeve is sleeved with a spring, one end of the spring is connected to the sleeve plate, and the other end of the spring is connected to the inner wall of the upper connecting rod, and the push rod fits tightly with the insertion rod.

[0006] Preferably, it further comprises a stabilizing structure, wherein the stabilizing structure is assembled on the inner walls of the upper connecting rod and the lower connecting rod;

[0007] The stabilizing structure includes a support plate, which is clamped on the inner wall of the lower connecting rod. A stabilizing rod is fixedly assembled on the surface of the support plate, and the stabilizing rod is inserted into the inner wall of the upper connecting rod.

[0008] Preferably, the outer wall of the screw buckle is fixedly equipped with a turning handle.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the rapid disassembly and assembly mechanism of the GNSS receiving module of the railway track inspection instrument uses the GNSS receiver as the external geometric parameter measuring device, and is composed of a GNSS receiver, an upper connecting rod, a lower connecting rod, a locking nut, and a base station base, wherein the upper connecting rod, the lower connecting rod and the locking nut are combined into a whole and placed in an aviation box. When preparing for on-site work, the lower connecting rod is aligned with the base station base, the locking nut is tightened to press the lower connecting rod, and then the GNSS receiver is tightened on the upper connecting rod through the quick disassembly and assembly structure. The quick disassembly and assembly structure can facilitate and quickly remove the GNSS receiver while ensuring the convenience of removal, thereby realizing the rapid disassembly and assembly of the GNSS external geometric parameter measuring module. The fitting clearance between the lower connecting rod and the base station base is 0.01mm, and there is a protrusion on the outside corresponding to the base station base, thereby ensuring the repeated assembly accuracy of the GNSS external geometric parameter measuring module. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the utility model;

[0011] Figure 2 It is a partial structural three-dimensional of the utility model;

[0012] Figure 3 for Figure 1 A schematic diagram of the structure at center A;

[0013] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point B in the middle.

[0014] In the figure: 1-GNSS receiver, 2-upper connecting rod, 3-lower connecting rod, 4-locking nut, 5-base station base, 6-relative measurement unit of railway track inspection instrument, 7-quick disassembly structure, 71-screw buckle, 72-insertion rod, 73-support sleeve, 74-top rod, 75-sleeve plate, 76-sleeve, 77-spring, 8-stabilizing structure, 81-support plate, 82-stabilizing rod, 9-handle. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1-4 The utility model provides a quick disassembly and assembly mechanism of a GNSS receiving module of a railway track inspection instrument, including a relative measuring unit 6 of the railway track inspection instrument. The surface of the relative measuring unit 6 of the railway track inspection instrument is connected to a base station base 5 by screws. A lower connecting rod 3 is inserted into the inner wall of the base station base 5. A locking nut 4 is screwed on the outer wall of the lower connecting rod 3, and the locking nut 4 is screwed to the outer wall of the base station base 5. An upper connecting rod 2 is screwed on the upper end of the inner wall of the lower connecting rod 3, and a GNSS receiver 1 is connected to the upper end of the inner wall of the upper connecting rod 2 through a quick disassembly and assembly structure 7.

[0017] The rapid disassembly and assembly mechanism of the GNSS receiving module of the railway track inspection instrument uses a GNSS receiver as an external geometric parameter measuring device, and is composed of a GNSS receiver 1, an upper connecting rod 2, a lower connecting rod 3, a locking nut 4, and a base station base 5. Among them, the upper connecting rod 2, the lower connecting rod 3 and the locking nut 4 are combined into a whole and placed in an aviation box. When preparing for on-site work, the lower connecting rod 3 is aligned with the base station base 5, the locking nut 4 is tightened to press the lower connecting rod 3, and then the GNSS receiver 1 is tightened on the upper connecting rod 2 through the rapid disassembly and assembly structure 7. The rapid disassembly and assembly structure 7 can facilitate and quickly remove the GNSS receiver 1 while ensuring the convenience of removal, thereby realizing the rapid disassembly and assembly of the GNSS external geometric parameter measurement module. The fitting clearance between the lower connecting rod 3 and the base station base 5 is 0.01mm, and there is a protrusion on the outside corresponding to the base station base 5, which ensures the repeated assembly accuracy of the GNSS external geometric parameter measurement module.

[0018] The quick-disassembly structure 7 includes a screw buckle 71, which is fixedly assembled on the lower end of the GNSS receiver 1. The surface of the upper connecting rod 2 is fixedly assembled with a support sleeve 73. The screw buckle 71 is screwed and assembled on the outer wall of the support sleeve 73. The lower end of the inner wall of the screw buckle 71 is fixedly assembled with an insertion rod 72, and the insertion rod 72 is inserted into the inner wall of the upper connecting rod 2. The inner wall of the upper connecting rod 2 is fixedly assembled with a sleeve 76. The inner wall of the sleeve 76 is inserted with a push rod 74. The outer wall of the push rod 74 is fixedly assembled with a sleeve plate 75. The outer wall of the sleeve 76 is sleeved with a spring 77. One end of the spring 77 is connected to the sleeve plate 75, and the other end of the spring 77 is connected to the inner wall of the upper connecting rod 2. The push rod 74 fits tightly with the insertion rod 72.

[0019] When it is necessary to use the quick-disassembly structure 7, first insert the insertion rod 72 into the upper connecting rod 2 and continue to insert it downward, squeezing the push rod 74 to move in the sleeve 76, and at the same time driving the sleeve 75 to squeeze the spring 77 to deform it and store force. When the screw buckle 71 contacts the upper end of the support sleeve 73, the GNSS receiver 1 is rotated, and the screw buckle 71 is driven to be screwed on the support sleeve 73 to complete the quick assembly. When quick disassembly is required, the GNSS receiver 1 is twisted in the opposite direction to remove the screw buckle 71 from the support sleeve 73. At this time, the elastic force of the spring 77 acts to push the push rod 74 through the sleeve 75, and at the same time drives the insertion rod 72 to bounce upward, making it convenient for the GNSS receiver 1 to be quickly pulled out and realize quick disassembly.

[0020] It also includes a stabilizing structure 8, which is assembled on the inner walls of the upper connecting rod 2 and the lower connecting rod 3;

[0021] The stabilizing structure 8 includes a support plate 81 , which is clamped to the inner wall of the lower connecting rod 3 . A stabilizing rod 82 is fixedly mounted on the surface of the support plate 81 , and the stabilizing rod 82 is plugged into the inner wall of the upper connecting rod 2 .

[0022] When the upper connecting rod 2 and the lower connecting rod 3 are connected together, the support plate 81 is clamped on the inner wall of the lower connecting rod 3, and the stabilizing rod 82 connected thereto is inserted into the upper connecting rod 2 to fill the empty groove inside it to ensure the stability of the connecting rod connection.

[0023] The outer wall of the screw buckle 71 is fixedly assembled with a turning handle 9.

[0024] The handle 9 is convenient for rotating the screw buckle 71.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid disassembly and assembly mechanism for a GNSS receiver module of a railway track inspection instrument, characterized by: The invention comprises a relative measurement unit (6) of a railway track inspection instrument, wherein the surface of the relative measurement unit (6) of the railway track inspection instrument is connected to a base station base (5) via screws, a lower connecting rod (3) is inserted into the inner wall of the base station base (5), a locking nut (4) is screwed to the outer wall of the lower connecting rod (3), and the locking nut (4) is screwed to the outer wall of the base station base (5), an upper connecting rod (2) is screwed to the upper end of the inner wall of the lower connecting rod (3), and the upper end of the inner wall of the upper connecting rod (2) is connected to a GNSS receiver (1) via a quick-disassembly structure (7).

2. The rapid disassembly and assembly mechanism of the GNSS receiving module of a railway track inspection instrument according to claim 1, characterized in that: The quick-disassembly structure (7) includes a screw buckle (71), which is fixedly assembled on the lower end of the GNSS receiver (1); a support sleeve (73) is fixedly assembled on the surface of the upper connecting rod (2); the screw buckle (71) is screwed and assembled on the outer wall of the support sleeve (73); the lower end of the inner wall of the screw buckle (71) is fixedly assembled with an insertion rod (72); the insertion rod (72) is inserted into the inner wall of the upper connecting rod (2); the upper connecting rod (2) The inner wall of the sleeve (76) is fixedly assembled with a sleeve (76), the inner wall of the sleeve (76) is plugged with a push rod (74), the outer wall of the push rod (74) is fixedly assembled with a sleeve plate (75), the outer wall of the sleeve (76) is sleeved with a spring (77), one end of the spring (77) is connected to the sleeve plate (75), the other end of the spring (77) is connected to the inner wall of the upper connecting rod (2), and the push rod (74) is tightly fitted with the insertion rod (72).

3. The rapid disassembly and assembly mechanism of the GNSS receiving module of a railway track inspection instrument according to claim 1, characterized in that: It also includes a stabilizing structure (8), which is assembled on the inner walls of the upper connecting rod (2) and the lower connecting rod (3); The stabilizing structure (8) includes a support plate (81), the support plate (81) is clamped to the inner wall of the lower connecting rod (3), and a stabilizing rod (82) is fixedly assembled on the surface of the support plate (81), and the stabilizing rod (82) is inserted into the inner wall of the upper connecting rod (2).

4. The rapid disassembly and assembly mechanism of the GNSS receiving module of a railway track inspection instrument according to claim 2, characterized in that: The outer wall of the screw buckle (71) is fixedly equipped with a turning handle (9).

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