Adjustable railway steel rail detection clamp

Abstract

The utility model discloses an adjustable railway steel rail detection clamp which comprises a lower clamp which is provided with a first clamping block, a second clamping block and a tensioning structure, the first clamping block and the second clamping block are used for clamping the two sides of the bottom of an I-shaped rail body respectively, and the tensioning structure is used for tensioning the first clamping block and the second clamping block. The mounting seat is provided with a mounting clamping groove and is used for accommodating the laser sensor; the adjusting mechanism is arranged between the mounting seat and the lower clamp and comprises an adjusting seat, a first adjusting assembly connected with the adjusting seat and the lower clamp and a second adjusting assembly connected with the adjusting seat and the mounting seat; wherein the first adjusting assembly is used for adjusting the levelness of the adjusting seat relative to the lower clamp, and the second adjusting assembly is used for adjusting the levelness of the mounting seat relative to the adjusting seat. According to the utility model, the drilling operation on the steel rail can be avoided, the overall mechanical strength and integrity of the steel rail can be protected, the levelness of the laser sensor and the fitting degree of the laser sensor and the steel rail can be finely adjusted, and the monitoring comprehensiveness and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, and specifically relates to an adjustable railway rail detection fixture. Background Art

[0002] In the modern transportation system, rail transit, such as subways, light rails, and high-speed railways, plays a crucial role, carrying an increasing number of passengers and transportation demands. Along with this rapid development, higher requirements are put forward for the durability and maintenance of infrastructure, especially for rails. The main part of the I-shaped rail is the I-shaped rail body, which, as the core component for load-bearing and guiding, bears huge dynamic loads for a long time and is prone to various damages such as head peeling, corrugation, and side wear, seriously affecting the operation safety and efficiency. To ensure the healthy state of the track system, real-time monitoring of rail damages has become a necessary measure, giving rise to the application of various monitoring technologies and sensors.

[0003] Under this background, the prior art, such as patent CN217345228U, discloses a fixture device designed specifically for rail acoustic wave detection. This device realizes the accurate acquisition of data by stably supporting a laser sensor and can achieve continuous monitoring of long rail segments through multi-unit combination, reducing the monitoring blind spots. However, this technical solution has obvious limitations: the need to drill holes in the rail during installation, which not only weakens the local mechanical strength of the rail but also greatly increases the installation complexity and time cost. In addition, the fixed installation point design limits the flexibility of adjusting the sensor position and is difficult to optimize the layout according to the special needs of different monitoring scenarios or damage types, affecting the comprehensiveness and efficiency of monitoring. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide an adjustable railway rail detection fixture to solve the existing problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an adjustable railway rail detection fixture, comprising:

[0006] A lower fixture, which has clamping blocks one and two respectively used for clamping both sides of the bottom of the I-shaped rail body and a tensioning structure for tightening clamping block one and clamping block two;

[0007] An installation seat, provided with an installation slot for accommodating a laser sensor;

[0008] An adjusting mechanism, arranged between the installation seat and the lower fixture, including an adjusting seat, a first adjusting component connecting the adjusting seat and the lower fixture, and a second adjusting component connecting the adjusting seat and the installation seat;

[0009] Wherein, the first adjustment component is used to adjust the levelness of the adjustment seat relative to the lower fixture, and the second adjustment component is used to adjust the levelness of the mounting seat relative to the adjustment seat.

[0010] By adopting the above technical solution, the adjustable railway rail detection fixture of the present utility model is fixed on the rail by a clamping method, avoiding the drilling operation on the rail, thus protecting the overall mechanical strength and integrity of the rail, reducing the damage to the rail, and extending the service life; in addition, through the first adjustment component and the second adjustment component, the levelness of the laser sensor and its fitting degree with the rail can be finely adjusted respectively, and the position and angle of the sensor can be flexibly adjusted according to different monitoring scenarios or specific types of rail damage, improving the comprehensiveness and accuracy of monitoring.

[0011] The present utility model is further configured such that there are two sets of the first adjustment component and the second adjustment component respectively, and each set includes an adjustment knob, an adjustment link, and a reset member. Two mating through slots are symmetrically arranged at both ends and the middle along the length of the adjustment seat. The adjustment knob is threadedly connected to one end of the mating through slot, the adjustment link passes through the other end of the mating through slot movably, and the reset member is used to elastically push up the end of the adjustment link located in the mating through slot so that it has a tendency to move towards the adjustment knob.

[0012] By adopting the above technical solution, the two sets of the first adjustment components allow the user to independently adjust the position of the adjustment seat in the horizontal direction to ensure perfect alignment with the lower fixture, regardless of whether there are slight unevenness on the rail surface or fine adjustment is required to adapt to the best monitoring angle of the sensor. Similarly, the two sets of the second adjustment components provide the precise positioning ability of the mounting seat in the vertical direction to ensure that the laser sensor can accurately align with the key monitoring area of the rail. The combined design of the adjustment knob and the adjustment link, together with the elastic pushing mechanism of the reset member, makes the adjustment process simple and efficient. The user can easily rotate the adjustment knob to drive the adjustment link to move along the mating through slot, while the reset member ensures the smoothness and rebound of the adjustment action, maintaining the fastening and stable state of the system. This design not only improves the convenience of installation and debugging but also ensures the long-term stability of the sensor positioning and the reliability of the monitoring data during continuous monitoring.

[0013] The present utility model is further configured such that the mating through slot includes a threaded section for mating with the adjustment knob and a guiding section for mating with the adjustment link. A limiting groove with an outer diameter larger than that of the guiding section extends outward on the circumferential side of the guiding section. The end of the adjustment link has a limiting ring adapted to the limiting groove, and the reset member is arranged between the end of the limiting ring and the side wall of the limiting groove far from the adjustment knob.

[0014] By adopting the above technical solution, the threaded section and the guiding section are integrated through the through groove. The former ensures the firm engagement and precise rotational control of the adjusting knob, while the latter provides a smooth and well-guided sliding path for the adjusting link, enhancing the smoothness of the adjustment process. The reset member ensures that the adjusting link can automatically return to the preset starting point or the nearest adjustment position when no external force is applied, which not only facilitates the quick adjustment by the user but also ensures the long-term stable operation of the adjustment assembly.

[0015] The present utility model is further configured such that the reset member is a reset spring and is disposed around the periphery of the adjusting link.

[0016] By adopting the above technical solution, the elastic force of the reset spring can continuously act on the limiting ring of the adjusting link. When the user completes the position adjustment and releases the force on the adjusting knob, the reset spring immediately comes into play, pushing the adjusting link back to its initial or nearest fixed position, ensuring that the adjustment assembly remains stable and will not be easily changed due to external vibration or other unexpected factors.

[0017] The present utility model is further configured such that the adjusting knob includes a knob cap and a column body, and the column body is provided with an external thread that mates with the threaded section.

[0018] By adopting the above technical solution, through the two-part structure of the knob cap and the column body, not only the mechanical connection strength between the knob and the adjustment mechanism is enhanced, making the torque transmission more direct and efficient, but also the knob cap provides a wider contact surface for the operator, facilitating force application and more precise fine-tuning control. In addition, this structure is also easy to implement sealing treatment to prevent dust and moisture from invading the adjustment interior, extending the service life of the device and ensuring the smoothness of the adjustment.

[0019] The present utility model is further configured such that the outer diameter of the knob cap is larger than that of the column body, and a ring-shaped limiting piece is provided on the side of the knob cap close to the column body.

[0020] By adopting the above technical solution, the larger outer diameter of the knob cap than the column body increases the feel and stability during operation, making it easier for the operator to hold and apply force, improving the comfort and control accuracy of the adjustment. The ring-shaped limiting piece provided on the side of the knob cap close to the column body plays a role in preventing the knob from rotating excessively. When the limit position of the mating through groove is reached during the adjustment process, it gives the operator clear physical feedback, avoiding component damage or misalignment caused by over-tightening, thereby protecting the entire adjustment mechanism from unnecessary stress damage.

[0021] The present utility model is further configured such that the outer peripheral side of the knob cap is covered with an anti-slip sleeve, and the outer side wall of the anti-slip sleeve is provided with anti-slip patterns.

[0022] By adopting the above technical solution, the feel and control accuracy of the operator during the adjustment process can be significantly improved.

[0023] The utility model is further configured such that the adjustment seat and the mounting seat are both provided with a limit rod extending toward the clamp block 1 and the adjustment seat, and the adjustment seat is both provided with a limit through hole cooperating with the limit rod along the horizontal direction and the clamp block 1 is provided along the vertical direction, and the limit through hole is constructed to allow the limit rod to swing in a limited manner between the two first adjustment components or the two second adjustment components.

[0024] By adopting the above technical solution, the overall stability and adaptability of the fixture are greatly enhanced by the additional limit rod and the limit through hole design matched therewith. The limit rod not only limits the movement range of the adjustment seat and the mounting seat, ensuring that they move or swing smoothly within the predetermined track, but also allows the limit rod to swing to a limited extent in the horizontal or vertical direction through the design of the limit through hole. In this way, it can adapt to the slight unevenness of the rail surface or the need for fine-tuning of the alignment during the installation process without sacrificing stability, which not only ensures the accuracy of sensor positioning, but also improves the flexibility of installation, especially in the actual track environment, can better adapt to various working conditions and reduce the monitoring error caused by the deformation of the track itself or the installation deviation.

[0025] The utility model is further configured that the two opposite side walls of the limiting rod have parallel limiting surfaces, the limiting through hole is in a long waist shape, and the limiting surfaces on both sides of the limiting rod are arranged closely against the two side walls of the limiting through hole.

[0026] By adopting the above technical solution, the parallel limiting surfaces on both sides of the limiting rod are closely fitted with the long waist-shaped limiting through hole, ensuring that the limiting rod can move smoothly in the predetermined direction in the limiting through hole and can be effectively restricted to prevent excessive deviation or shaking. This structural design not only improves the rigidity and stability of the entire clamp system, but also enables more precise control of the position of the adjustment seat and the mounting seat during the adjustment process, thereby ensuring that the laser sensor can always accurately align with the monitoring area of the rail, and can maintain stable monitoring even in the continuous vibration environment caused by the high-speed train passing.

[0027] The utility model is further configured such that the tightening structure includes a tightening rod and a tightening nut extending horizontally along clamp block two toward clamp block one, the tightening rod passes through clamp block one in a horizontal direction and an external thread is provided at one end away from clamp block two, and the tightening nut is threadedly connected to the external thread of the tightening rod.

[0028] By adopting the above technical solution, the tension rod and the tension nut are used in coordination to achieve precise adjustment and strong locking of the distance between the clamping block 1 and the clamping block 2.

[0029] In summary, the utility model mainly has the following beneficial effects:

[0030] The adjustable railway rail detection fixture of the present utility model is fixed on the rail by a clamping method, avoiding the drilling operation on the rail, thereby protecting the overall mechanical strength and integrity of the rail, reducing the damage to the rail, and extending the service life. In addition, through the first adjustment component and the second adjustment component, the levelness of the laser sensor and its fitting degree with the rail can be finely adjusted, and the position and angle of the sensor can be flexibly adjusted according to different monitoring scenarios or specific types of rail damage, improving the comprehensiveness and accuracy of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall use state of the present utility model Figure 1 ;

[0032] Figure 2 is a schematic diagram of the overall use state of the present utility model Figure 2 ;

[0033] Figure 3 is a schematic top view structure diagram of the present utility model;

[0034] Figure 4 is a partial cross-sectional structure diagram of the present utility model highlighting the installation structure of the adjustment knob, adjustment link, and reset member;

[0035] Figure 5 is a partial cross-sectional structure diagram of the present utility model highlighting the limiting rod and limiting groove.

[0036] In the figure: 10, lower fixture; 11, first clamping block; 12, second clamping block; 13, tensioning structure; 131, tensioning rod; 132, tensioning nut; 14, clamping groove; 15, flexible cushion layer; 20, mounting seat; 21, connecting block; 30, adjustment mechanism; 40, adjustment seat; 41, mating through groove; 42, threaded section; 43, guiding section; 44, limiting groove; 45, limiting through hole; 50, first adjustment component; 51, adjustment knob; 511, rotating cap; 512, column body; 513, limiting piece; 514, anti-slip sleeve; 52, adjustment link; 521, mounting hole; 53, reset member; 54, limiting ring; 60, second adjustment component; 70, limiting rod; 71, limiting surface; 80, I-shaped rail body; 90, laser sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0038] Next, the embodiments of the present utility model will be described according to its overall structure.

[0039] An adjustable railway rail detection fixture, as Figures 1-5 shown, includes:

[0040] A lower fixture 10, having a first clamping block 11 and a second clamping block 12 respectively for clamping both sides of the bottom of the I-beam rail body 80, and a tensioning structure 13 for tensioning the first clamping block 11 and the second clamping block 12;

[0041] A mounting seat 20, provided with a mounting card slot (arc-shaped, not marked), for accommodating the laser sensor 90;

[0042] An adjusting mechanism 30, arranged between the mounting seat 20 and the lower fixture 10, includes an adjusting seat 40, a first adjusting component 50 connecting the adjusting seat 40 and the lower fixture 10, and a second adjusting component 60 connecting the adjusting seat 40 and the mounting seat 20;

[0043] Wherein, the first adjusting component 50 is used to adjust the level of the adjusting seat 40 relative to the lower fixture 10, and the second adjusting component 60 is used to adjust the level of the mounting seat 20 relative to the adjusting seat 40.

[0044] Preferably, the first adjusting component 50 and the second adjusting component 60 are respectively provided with two groups and both include an adjusting knob 51, an adjusting connecting rod 52 and a resetting member 53. Two mating through slots 41 are symmetrically arranged at both ends and the middle along the length of the adjusting seat 40. The adjusting knob 51 is threadedly connected to one end of the mating through slot 41, the adjusting connecting rod 52 movably passes through the other end of the mating through slot 41, and the resetting member 53 is used to elastically push up the end of the adjusting connecting rod 52 located in the mating through slot 41 so that it has a tendency to move towards the adjusting knob 51. The two groups of the first adjusting components 50 allow the user to independently adjust the position of the adjusting seat 40 in the horizontal direction to ensure perfect alignment with the lower fixture 10, regardless of whether there are slight unevenness on the rail surface or fine adjustment is required to adapt to the best monitoring angle of the sensor. Similarly, the two groups of the second adjusting components 60 provide the precise positioning ability of the mounting seat 20 in the vertical direction to ensure that the laser sensor 90 can accurately align with the key monitoring area of the rail. The matching design of the adjusting knob 51 and the adjusting connecting rod 52, combined with the elastic pushing mechanism of the resetting member 53, makes the adjustment process simple and efficient. The user can easily rotate the adjusting knob 51 to drive the adjusting connecting rod 52 to move along the mating through slot 41, while the resetting member 53 ensures the smoothness and resilience of the adjustment action, maintaining the fastening and stable state of the system. This design not only improves the convenience of installation and debugging, but also ensures the long-term stability of the sensor positioning and the reliability of the monitoring data during continuous monitoring.

[0045] Specifically, an installation hole 521 is also formed at one end of the adjusting link 52 away from the adjusting knob 51. A connecting block 21 extends from the bottom of the mounting seat 20, and the connecting block 21 is locked and fixed to the installation hole 521 by an installation bolt (not shown in the figure).

[0046] Preferably, the matching through groove 41 includes a threaded section 42 that mates with the adjusting knob 51 and a guiding section 43 that mates with the adjusting link 52. A limiting groove 44 with an outer diameter larger than that of the guiding section 43 extends outward on the circumferential side of the guiding section 43. One end of the adjusting link 52 has a limiting ring 54 adapted to the limiting groove 44. The resetting member 53 is arranged between the end of the limiting ring 54 and the side wall of the limiting groove 44 away from the adjusting knob 51. The matching through groove 41 combines the threaded section 42 and the guiding section 43. The former ensures the firm engagement and precise rotation control of the adjusting knob 51, while the latter provides a smooth and well-guided sliding path for the adjusting link 52, improving the smoothness of the adjustment process. The resetting member 53 ensures that the adjusting link 52 can automatically return to the preset starting point or the nearest adjustment position when not subjected to external forces, which not only facilitates the quick adjustment by the user but also ensures the long-term stable operation of the adjustment assembly.

[0047] Preferably, the resetting member 53 is a reset spring and is arranged around the circumferential side of the adjusting link 52. The elastic force of the reset spring can continuously act on the limiting ring 54 of the adjusting link 52. When the user completes the position adjustment and releases the force on the adjusting knob 51, the reset spring immediately comes into play, pushing the adjusting link 52 back to its initial or nearest fixed position, ensuring that the adjustment assembly remains stable and will not be easily changed due to external vibrations or other unexpected factors.

[0048] Preferably, the adjusting knob 51 includes a knob cap 511 and a column body 512. The column body 512 is provided with an external thread that mates with the threaded section 42. With the two-part structure of the knob cap 511 and the column body 512, not only the mechanical connection strength between the knob and the adjusting mechanism 30 is enhanced, making the torque transmission more direct and efficient, but also the knob cap 511 provides a wider contact surface for the operator, facilitating force application and more precise fine-tuning control. In addition, this structure is also easy to implement sealing treatment to prevent dust and moisture from invading the interior of the adjustment, extending the service life of the device and ensuring the smoothness of the adjustment.

[0049] Preferably, the outer diameter of the rotary cap 511 is larger than that of the column body 512, and an annular limiting piece 513 is provided on the side of the rotary cap 511 close to the column body 512. The larger outer diameter of the rotary cap 511 than that of the column body 512 increases the feel and stability during operation, making it easier for the operator to hold and apply force, and improving the comfort and control accuracy of adjustment. The annular limiting piece 513 provided on the side of the rotary cap 511 close to the column body 512 plays a role in preventing the knob from rotating excessively. When the limit position of the mating through groove 41 is reached during the adjustment process, it can give the operator clear physical feedback, avoiding component damage or misalignment caused by over-tightening, thereby protecting the entire adjustment mechanism 30 from unnecessary stress damage.

[0050] Preferably, the outer peripheral side of the rotary cap 511 is covered with an anti-slip sleeve 514, and the outer side wall of the anti-slip sleeve 514 is provided with anti-slip patterns (not marked in the figure), which can significantly improve the feel and control accuracy of the operator during the adjustment process.

[0051] Preferably, limiting rods 70 extending towards the first clamping block 11 and the adjustment seat 40 are provided on both the adjustment seat 40 and the mounting seat 20. The adjustment seat 40 is provided with a limiting through hole 45 for cooperating with the limiting rod 70 in the horizontal direction, and the first clamping block 11 is provided with a limiting through hole 45 for cooperating with the limiting rod 70 in the vertical direction. The limiting through hole 45 is configured to allow the limiting rod 70 to swing and be limited between the two first adjustment components 50 or the two second adjustment components 60. Through the design of the additional limiting rod 70 and the limiting through hole 45 cooperating with it, the overall stability and adaptability of the fixture are greatly enhanced. The limiting rod 70 not only limits the movement range of the adjustment seat 40 and the mounting seat 20 to ensure their smooth movement or swing within a predetermined trajectory, but also, through the design of the limiting through hole 45, allows the limiting rod 70 to swing to a limited extent in the horizontal or vertical direction. In this way, without sacrificing stability, it can adapt to the possible slight unevenness on the surface of the rail or the fine adjustment requirements for alignment during the installation process, ensuring the accuracy of sensor positioning and improving the flexibility of installation. Especially in the actual track environment, it can better adapt to various working conditions and reduce the monitoring errors caused by the deformation of the track itself or the installation deviation.

[0052] Preferably, the opposite side walls of the limiting rod 70 are provided with limiting surfaces 71 arranged in parallel. The limiting through hole 45 is in a long strip-shaped waist shape. The two limiting surfaces 71 on both sides of the limiting rod 70 are closely attached to the side walls on both sides of the limiting through hole 45. The close fit between the two parallel limiting surfaces 71 on both sides of the limiting rod 70 and the long strip-shaped waist-shaped limiting through hole 45 ensures that the limiting rod 70 can smoothly move along a predetermined direction within the limiting through hole 45 and can be effectively restricted to prevent excessive deviation or shaking. This structural design not only improves the rigidity and stability of the entire fixture system but also enables more precise control of the position of the adjusting seat 40 and the mounting seat 20 during the adjustment process, thereby ensuring that the laser sensor 90 can always accurately align with the monitoring area of the rail and maintain stable monitoring even in the continuous vibration environment caused by the high-speed passing of the train.

[0053] Preferably, the tensioning structure 13 includes a tensioning rod 131 extending horizontally from the second clamping block 12 towards the first clamping block 11 and a tensioning nut 132. The tensioning rod 131 passes through the first clamping block 11 in the horizontal direction, and an external thread is provided at the end thereof away from the second clamping block 12. The tensioning nut 132 is threadedly connected to the external thread of the tensioning rod 131. In this embodiment, two sets of tensioning structures 13 are provided and symmetrically distributed on both sides of the first clamping block 11 and the second clamping block 12. Thus, the cooperation of the tensioning rod 131 and the tensioning nut 132 realizes the precise adjustment and strong locking of the distance between the first clamping block 11 and the second clamping block 12.

[0054] Particularly, in this embodiment, clamping grooves 14 adapted to the cross-sectional shapes on both sides of the bottom of the I-shaped rail body 80 are formed on the sides of the first clamping block 11 and the second clamping block 12 close to each other, and a flexible cushion layer 15 made of silica gel or rubber is further provided in the clamping grooves 14. Thus, in cooperation with the tensioning structure 13 and the first clamping block 11 and the second clamping block 12, the bottom of the I-shaped rail body 80 can be better tensioned and fixed.

[0055] In summary, the use process of the present utility model and mainly has the following beneficial effects:

[0056] First, place the first clamping block 11 and the second clamping block 12 on both sides of the bottom of the I-shaped rail body 80 respectively, so that the clamping grooves 14 are respectively stuck on the protruding structures on both sides of the bottom of the I-shaped rail body 80. At this time, the tension rod 131 passes through the bottom of the I-shaped rail body 80 to the bottom of the first clamping block 11 on the other side, and penetrates through the bottom of the first clamping block 11 and exits to the other side. By rotating the tension nut 132, the first clamping block 11 and the second clamping block 12 are respectively tightened, so that they are clamped and fixed on both sides of the bottom of the I-shaped rail body 80. Subsequently, place the laser sensor 90 in the installation card slot of the mounting seat 20 in advance, and roughly adjust the first adjustment component 50 so that the laser sensor 90 abuts against the side wall of the rail to be measured. Subsequently, according to the actual position, finely adjust the horizontal and vertical directions of the mounting seat 20 and the adjustment seat 40 relative to the rail through the two adjustment knobs 51 of the first adjustment component 50 and the second adjustment component 60, so that it is finally in a perfect detection state, and the installation process is completed.

[0057] The adjustable railway rail detection fixture of the present utility model is fixed on the rail by a clamping method, avoiding drilling operations on the rail, thus protecting the overall mechanical strength and integrity of the rail, reducing damage to the rail, and extending the service life. In addition, through the first adjustment component 50 and the second adjustment component 60, the levelness of the laser sensor 90 and the fitting degree with the rail can be finely adjusted respectively. According to different monitoring scenarios or specific types of rail damage, the position and angle of the sensor can be flexibly adjusted, improving the comprehensiveness and accuracy of monitoring.

[0058] In addition, the design of the adjustment mechanism 30 makes the installation simpler and faster, reducing the installation time cost. The operator can quickly adjust the position of the fixture through the adjustment knob 51, without complex tools and long-time operations, improving the work efficiency.

[0059] The design of the limit rod 70 and the limit through hole 45 ensures the stable positioning of the fixture during use. Even in the vibration environment generated when the train passes at high speed, the stable monitoring of the sensor can be maintained, improving the reliability and accuracy of data collection.

[0060] The setting of the anti-slip sleeve 514 and the anti-slip pattern increases the convenience of operation, making the adjustment process more labor-saving and accurate. At the same time, the limit piece 513 design of the cap 511 also prevents damage caused by over-tightening, reflecting the careful consideration of the user experience.

[0061] In summary, the adjustable railway rail detection fixture provided by the present utility model not only solves the installation problems in the prior art, but also greatly improves the flexibility and efficiency of monitoring.

[0062] Although embodiments of the present utility model have been shown and described, the specific embodiments are only interpretations of the present utility model and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. An adjustable railway rail detection fixture, characterized in that: Including: A lower fixture (10), which has a first clamping block (11) and a second clamping block (12) respectively used for clamping both sides of the bottom of the I-beam track body (80), and a tensioning structure (13) for tensioning the first clamping block (11) and the second clamping block (12); A mounting seat (20), provided with a mounting card slot for accommodating a laser sensor (90); An adjusting mechanism (30), arranged between the mounting seat (20) and the lower fixture (10), including an adjusting seat (40), a first adjusting component (50) connecting the adjusting seat (40) and the lower fixture (10), and a second adjusting component (60) connecting the adjusting seat (40) and the mounting seat (20); Wherein, the first adjusting component (50) is used to adjust the levelness of the adjusting seat (40) relative to the lower fixture (10), and the second adjusting component (60) is used to adjust the levelness of the mounting seat (20) relative to the adjusting seat (40).

2. The adjustable railway rail detection fixture according to claim 1, characterized in that: The first adjusting component (50) and the second adjusting component (60) are respectively provided with two groups and both include an adjusting knob (51), an adjusting connecting rod (52), and a resetting member (53). Two mating through slots (41) are symmetrically arranged along both ends and the middle of the length of the adjusting seat (40). The adjusting knob (51) is threadedly connected to one end of the mating through slot (41), and the adjusting connecting rod (52) movably passes out through the other end of the mating through slot (41). The resetting member (53) is used to elastically jack up the end of the adjusting connecting rod (52) located in the mating through slot (41) so that it has a tendency to move towards the adjusting knob (51).

3. The adjustable railway rail detection fixture according to claim 2, characterized in that: The mating through slot (41) includes a threaded section (42) cooperating with the adjusting knob (51) and a guiding section (43) cooperating with the adjusting connecting rod (52). A limiting groove (44) with an outer diameter larger than that of the guiding section (43) extends outward on the circumferential side of the guiding section (43). The end of the adjusting connecting rod (52) has a limiting ring (54) adapted to the limiting groove (44), and the resetting member (53) is arranged between the end of the limiting ring (54) and the side wall of the limiting groove (44) far from the adjusting knob (51).

4. The adjustable railway rail detection fixture according to claim 3, characterized in that: The resetting member (53) is a reset spring and is arranged around the circumferential side of the adjusting connecting rod (52).

5. The adjustable railway rail detection fixture according to claim 3, characterized in that: The adjusting knob (51) includes a knob cap (511) and a column body (512). The column body (512) is provided with an external thread cooperating with the threaded section (42).

6. The adjustable railway rail detection fixture according to claim 5, wherein: The outer diameter of the knob cap (511) is larger than that of the column body (512), and a ring-shaped limiting piece (513) is provided on the side of the knob cap (511) close to the column body (512).

7. An adjustable railway rail detection fixture according to claim 5, characterized in that: The outer circumferential side of the knob cap (511) is covered with an anti-slip sleeve (514), and anti-slip patterns are provided on the outer side wall of the anti-slip sleeve (514).

8. An adjustable railway rail detection fixture according to claim 1, characterized in that: The adjusting base (40) and the mounting base (20) are both provided with limiting rods (70) extending towards the first clamping block (11) and the adjusting base (40). The adjusting base (40) is provided with a limiting through hole (45) cooperating with the limiting rod (70) along the horizontal direction, and the first clamping block (11) is provided with a limiting through hole (45) cooperating with the limiting rod (70) along the vertical direction. The limiting through hole (45) is configured to enable the limiting rod (70) to swing and be limited between the two first adjusting components (50) or the two second adjusting components (60).

9. The adjustable railway rail detection fixture according to claim 8, wherein: The opposite side walls of the limiting rod (70) have limiting surfaces (71) arranged in parallel. The limiting through hole (45) is in a long strip shape of a waist type, and the two limiting surfaces (71) on both sides of the limiting rod (70) are tightly attached to the side walls of the limiting through hole (45).

10. The adjustable railway rail detection fixture according to claim 1, wherein: The tensioning structure (13) includes a tensioning rod (131) extending horizontally from the second clamping block (12) towards the first clamping block (11) and a tensioning nut (132). The tensioning rod (131) penetrates through the first clamping block (11) along the horizontal direction, and an external thread is provided at one end of the tensioning rod (131) away from the second clamping block (12). The tensioning nut (132) is threadedly connected to the external thread of the tensioning rod (131).

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