Switch rail measuring scale

Abstract

The utility model relates to the technical field of railway equipment, in particular to a switch rail measuring scale, which comprises a measuring scale and an auxiliary supporting device, the auxiliary supporting device comprises a supporting seat, a telescopic positioning block, a positioning magnetic block, a pull bolt and a tension spring, one end of the supporting seat is fixedly arranged on the measuring scale, the other end of the supporting seat is provided with a first counter bore, and the telescopic positioning block is arranged in the first counter bore. A first through hole is formed in the side portion of the supporting base and communicates with the first counter bore, and the central axis of the first through hole is perpendicular to the central axis of the first counter bore. One end of the telescopic positioning block is arranged in the first counter bore in a sliding manner, and the other end of the telescopic positioning block is fixedly connected with the positioning magnetic block; according to the utility model, the pulling plug is arranged at the side part of the telescopic positioning block, so that the telescopic positioning block can be conveniently pulled through the pulling plug, the telescopic positioning block can be conveniently and fixedly connected with the switch rail through magnetic force before measurement, the telescopic positioning block can be conveniently separated from the switch rail after measurement, and the operation and the use are relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of railway equipment, in particular to a point rail measuring ruler. Background Art

[0002] When a train passes through a switch, the point rail is subjected to pressure from the wheel edge, which may cause wear on the side of the point rail, which we call "side wear". At the same time, the vertical drop of the point rail relative to the base rail is called the "reduction value", among which the side wear value and the reduction value are two key indicators to measure the health of the point rail.

[0003] The utility model with publication number CN220977565U discloses a digital point rail data information measuring instrument, including a reduction value measuring scale and a side wear measuring scale. The surface of the reduction value measuring scale is provided with a positioning component; the positioning component includes an auxiliary support plate, the inner cavity of the auxiliary support plate is provided with a telescopic positioning block, one end of the telescopic positioning block is fixedly connected to a positioning magnetic block, and the surface of the auxiliary support plate is threadedly connected with a fastener used in conjunction with the telescopic positioning block, which can limit and support the reduction value measuring scale.

[0004] As in the above technical solution, the role of the positioning component is to limit and support the reduced value measuring scale. The positioning component is a traditional telescopic structure. During actual measurement, it is inconvenient to pull and pull the positioning component, and it is also inconvenient to magnetically fix the extended end of the positioning component on the point rail, and it is also inconvenient to separate the extended end from the point rail, which makes operation and use more inconvenient. Utility Model Content

[0005] In view of this, the utility model proposes a point rail measuring ruler, which is convenient for pulling and pulling the telescopic positioning block by arranging a pull bolt on the side of the telescopic positioning block. It is convenient to magnetically fix the telescopic positioning block and the point rail before measurement, and it is convenient to separate the telescopic positioning block from the point rail after measurement, and it is convenient to operate and use.

[0006] The technical solution of the utility model is achieved in this way:

[0007] The utility model provides a point rail measuring ruler, comprising a measuring ruler and an auxiliary supporting device, wherein:

[0008] The auxiliary support device is arranged on the measuring scale;

[0009] The auxiliary support device includes a support seat, a telescopic positioning block, a positioning magnetic block, a pull bolt and a tension spring, wherein:

[0010] One end of the support seat is fixedly arranged on the measuring scale, and the other end is provided with a first countersunk hole. A first through hole is provided on the side of the support seat, and the first through hole is connected to the first countersunk hole, and the central axes of the first through hole and the first countersunk hole are perpendicular to each other;

[0011] One end of the telescopic positioning block is slidably disposed in the first countersunk hole, and the other end is fixedly connected to the positioning magnetic block;

[0012] One end of the pull bolt is fixedly arranged on the side of the telescopic positioning block, and the other end passes through the first through hole to the outside of the support seat;

[0013] The tension spring is placed in the first countersunk hole, one end of the tension spring is fixedly connected to the bottom of the first countersunk hole, and the other end is fixedly connected to one end of the telescopic positioning block, and the tension of the tension spring is smaller than the magnetic force of the positioning magnetic block.

[0014] On the basis of the above technical solution, preferably, the first through hole extends into a rectangular shape along the sliding direction of the telescopic positioning block.

[0015] On the basis of the above technical solution, preferably, a second countersunk hole is provided on one end of the telescopic positioning block close to the tension spring, and the inner diameter of the second countersunk hole is larger than the outer diameter of the tension spring, wherein:

[0016] One end of the tension spring away from the bottom of the first countersunk hole is fixedly connected to the bottom of the second countersunk hole.

[0017] On the basis of the above technical solution, preferably, a first threaded hole is provided on the side of the telescopic positioning block and at a position corresponding to the pull bolt, and one end of the pull bolt is screwed into the first threaded hole.

[0018] On the basis of the above technical solution, preferably, the end of the pull bolt away from the first threaded hole is in a ball head shape.

[0019] On the basis of the above technical solution, preferably, a third countersunk hole is provided on the end of the telescopic positioning block away from the tension spring, wherein:

[0020] The positioning magnetic block is embedded in the second countersunk hole.

[0021] On the basis of the above technical solution, preferably, the auxiliary support device further includes a rubber ring, wherein:

[0022] The rubber ring is fixedly arranged on one end of the telescopic positioning block away from the tension spring;

[0023] The rubber ring and the third counterbore are concentric.

[0024] On the basis of the above technical solution, preferably, the auxiliary support device further includes a first fastening screw, wherein:

[0025] A second threaded hole is provided on the side of the support seat, the second threaded hole is connected to the first countersunk hole, and the central axes of the second threaded hole and the first countersunk hole are perpendicular to each other;

[0026] One end of the first fastening screw is threaded into the second threaded hole and selectively abuts against the side of the telescopic positioning block.

[0027] On the basis of the above technical solution, preferably, the measuring scale includes a reduction value measuring scale and a side wear measuring scale, wherein:

[0028] The reduction value measuring scale is arranged vertically;

[0029] The side wear measurement scale is slidably arranged on the reduction value measurement scale in a horizontal direction;

[0030] The support seat is parallel to the side wear measurement scale and is arranged below the side wear measurement scale;

[0031] One end of the support seat is fixedly arranged on the reduction value measuring scale.

[0032] On the basis of the above technical solution, preferably, the auxiliary support device further includes a second fastening screw, wherein:

[0033] A third threaded hole is horizontally arranged on the upper edge of one end of the support base away from the positioning magnetic block, and a second through hole is vertically arranged on the upper edge of one end of the support base away from the positioning magnetic block, and the second through hole is connected to the third threaded hole;

[0034] One end of the second fastening screw is threaded into the third threaded hole;

[0035] The lower end of the reduction value measuring scale passes through the second through hole, and one end of the second fastening screw abuts against the side end of the reduction value measuring scale.

[0036] The utility model has the following beneficial effects compared with the prior art:

[0037] (1) By arranging a pull bolt on the side of the telescopic positioning block, it is convenient to pull the telescopic positioning block out and in through the pull bolt, which is convenient for magnetically fixing the telescopic positioning block and the point rail before measurement, and convenient for separating the telescopic positioning block and the point rail after measurement, and the operation and use are more convenient.

[0038] (2) By providing a tension spring, the telescopic positioning block is facilitated to automatically return to its original position, thereby improving the convenience of using the telescopic positioning block.

[0039] (3) By providing a rubber ring, the vibration when the telescopic positioning block contacts the point rail is reduced, thereby effectively protecting the accuracy of the point rail measuring ruler. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A three-dimensional diagram of a point rail measuring ruler of the utility model;

[0042] Figure 2 It is a partial stereoscopic diagram of a point rail measuring ruler of the utility model;

[0043] Figure 3 for Figure 2 A front view of

[0044] Figure 4 for Figure 3 AA section view;

[0045] Figure 5 for Figure 2 Exploded diagram of

[0046] In the figure: 1. measuring scale; 2. auxiliary supporting device; 11. reduction value measuring scale; 12. side wear measuring scale; 21. supporting seat; 22. telescopic positioning block; 23. positioning magnetic block; 24. pull bolt; 25. tension spring; 26. rubber ring; 27. first fastening screw; 28. second fastening screw; 201. first countersunk hole; 202. first through hole; 203. second countersunk hole; 204. first threaded hole; 205. third countersunk hole; 206. second threaded hole; 207. third threaded hole; 208. second through hole. DETAILED DESCRIPTION

[0047] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] like Figure 1-5As shown, a point rail measuring ruler of the utility model comprises a measuring ruler 1 and an auxiliary supporting device 2, wherein the measuring ruler 1 comprises a reduction value measuring ruler 11 and a side wear measuring ruler 12, the reduction value measuring ruler 11 is arranged vertically; the side wear measuring ruler 12 is arranged on the reduction value measuring ruler 11 for sliding in the horizontal direction, and the auxiliary supporting device 2 is arranged on the measuring ruler 1, specifically, the auxiliary supporting device 2 is arranged on the reduction value measuring ruler 11; in addition, a magnetic base structure is arranged at the lower end of the reduction value measuring scale 11, and the magnetic base is used to magnetically adsorb on the non-working side rail jaw part of the point rail.

[0049] In the above structure, the reduction value measuring scale 11 and the side wear measuring scale 12 are any digital display measuring scales in the prior art, and the magnetic base structure is any magnetic base in the prior art, such as a digital display point rail data information measuring instrument disclosed in CN220977565U, which includes a corresponding digital display measuring scale and a magnetic base structure, and its specific structure and principle are not repeated here.

[0050] During measurement, the auxiliary support device 2 forms a support between the lowered value measuring scale 11 and the point rail to improve the measurement accuracy. In the prior art, the auxiliary support device 2 is mostly a traditional telescopic structure. When used on the side of the point rail, it is not convenient to perform telescopic operation on the auxiliary support device 2. For this reason, the utility model improves the structure of the auxiliary support device 2 and provides a hand-pull structure to facilitate the pulling and pulling operation of the auxiliary support device 2. This makes it convenient to magnetically fix the auxiliary support device 2 to the point rail before measurement, and to separate the auxiliary support device 2 from the point rail after measurement, and is more convenient to operate and use.

[0051] like Figure 2 As shown, the auxiliary support device 2 includes a support seat 21, a telescopic positioning block 22, a positioning magnetic block 23, a pull bolt 24 and a tension spring 25.

[0052] Among them, one end of the support seat 21 is fixedly set on the measuring scale 1. Specifically, the support seat 21 is parallel to the side wear measuring scale 12 and is arranged below the side wear measuring scale 12, and one end of the support seat 21 is fixedly set on the reduction value measuring scale 11; the other end of the support seat 21 is provided with a first countersunk hole 201, and the side of the support seat 21 is provided with a first through hole 202, the first through hole 202 is connected to the first countersunk hole 201, and the central axes of the first through hole 202 and the first countersunk hole 201 are perpendicular to each other.

[0053] The telescopic positioning block 22 is cylindrical, one end of which is slidably set in the first countersunk hole 201, and the other end is fixedly connected to the positioning magnetic block 23; one end of the pull bolt 24 is fixedly set on the side of the telescopic positioning block 22, and the other end passes through the first through hole 202 to the outside of the support seat 21; the tension spring 25 is placed in the first countersunk hole 201, one end of the tension spring 25 is fixedly connected to the bottom of the first countersunk hole 201, and the other end is fixedly connected to one end of the telescopic positioning block 22, and the tension of the tension spring 25 is less than the magnetic force of the positioning magnetic block 23.

[0054] During measurement, the telescopic positioning block 22 is pulled by the pull bolt 24 to extend or retract the telescopic positioning block 22. When extended, it is used to fix the positioning magnetic block 23 on the waist of the point rail. Since the pulling force of the tension spring 25 is less than the magnetic force of the positioning magnetic block 23, the positioning magnetic block 23 will not fall off the point rail after being fixed. When the measurement is finished, the telescopic positioning block 22 is pulled by the pull bolt 24 to make the positioning magnetic block 23 more easily separated from the point rail. At this time, the tension spring 25 rebounds. After the positioning magnetic block 23 is separated from the point rail, the tension spring 25 pulls the telescopic positioning block 22 back to its original position. This structure makes the extension and retraction of the telescopic positioning block 22 more convenient.

[0055] like Figure 2 As shown, the first through hole 202 extends into a rectangular shape along the sliding direction of the telescopic positioning block 22 , and the pull bolt 24 can move in the first through hole 202 along the sliding direction of the telescopic positioning block 22 .

[0056] For convenience, the tension spring 25 is arranged. Figure 4 As shown, a second countersunk hole 203 is provided on one end of the telescopic positioning block 22 close to the tension spring 25, and the inner diameter of the second countersunk hole 203 is larger than the outer diameter of the tension spring 25, so that the tension spring 25 can be extended and retracted in the second countersunk hole 203, wherein one end of the tension spring 25 away from the bottom of the first countersunk hole 201 is fixedly connected to the bottom of the second countersunk hole 203. In this structure, when the telescopic positioning block 22 is not extended, the tension spring 25 is on the inner side of the second countersunk hole 203, which can ensure that the telescopic positioning block 22 has an effective sliding stroke and that the tension spring 25 has an effective stretching length.

[0057] like Figure 2 As shown, the end of the pull bolt 24 away from the first threaded hole 204 is in a ball head shape, which is convenient for holding. At the same time, the pull bolt 24 is detachably arranged on the telescopic positioning block 22. Specifically, the first threaded hole 204 is arranged on the side of the telescopic positioning block 22 and at the position corresponding to the pull bolt 24, and one end of the pull bolt 24 is screwed into the first threaded hole 204.

[0058] like Figure 4 As shown, a third countersunk hole 205 is provided on one end of the telescopic positioning block 22 away from the tension spring 25 , wherein the positioning magnetic block 23 is embedded in the third countersunk hole 205 .

[0059] In the above structure, since the reduction value measuring scale 11 and the side wear measuring scale 12 are any digital display measuring scales in the prior art, in order to protect the electronic components related to the digital display, the vibration of the telescopic positioning block 22 when in contact with the point rail should be reduced as much as possible to protect the digital display components of the measuring scale and the accuracy of the measuring scale. To this end, the auxiliary support device 2 also includes a rubber ring 26, wherein the rubber ring 26 is fixedly arranged on one end of the telescopic positioning block 22 away from the tension spring 25; the rubber ring 26 is concentric with the third countersunk hole 205, and the rubber ring 26 is used to reduce the vibration of the telescopic positioning block 22 when in contact with the point rail, thereby protecting the measuring scale.

[0060] In order to maintain the telescopic positioning block 22 in the extended state, the auxiliary support device 2 also includes a first fastening screw 27, wherein a second threaded hole 206 is provided on the side of the support seat 21, the second threaded hole 206 is connected to the first countersunk hole 201, and the central axes of the second threaded hole 206 and the first countersunk hole 201 are perpendicular to each other; one end of the first fastening screw 27 is screwed into the second threaded hole 206 and selectively abuts against the side of the telescopic positioning block 22. When the telescopic positioning block 22 is extended, the first fastening screw 27 is tightened to fasten the telescopic positioning block 22 by the first fastening screw 27. When the telescopic positioning block 22 needs to be retracted, the first fastening screw 27 is loosened.

[0061] like Figure 5 As shown, to facilitate the installation of the auxiliary support device 2, the auxiliary support device 2 also includes a second fastening screw 28, wherein a third threaded hole 207 is horizontally arranged on the upper edge of one end of the support seat 21 away from the positioning magnetic block 23, and a second through hole 208 is vertically arranged on the upper edge of one end of the support seat 21 away from the positioning magnetic block 23, and the second through hole 208 and the third threaded hole 207 are connected; one end of the second fastening screw 28 is screwed into the third threaded hole 207; the lower end of the reduction value measuring scale 11 passes through the second through hole 208, and one end of the second fastening screw 28 is abutted against the side end of the reduction value measuring scale 11; during installation, one end of the reduction value measuring scale 11 is inserted into the second through hole 208, and then the second fastening screw 28 is tightened to fix the reduction value measuring scale 11 and the support seat 21.

[0062] The method of using the point rail measuring ruler of the utility model is as follows:

[0063] When using the auxiliary support device 2, loosen the first fastening screw 27, hold the pull bolt 24 and pull it in the direction of the point rail, the pull bolt 24 drives one end of the telescopic positioning block 22 to extend out of the support seat 21, and continue to pull to make the rubber ring 26 abut against the point rail. At this time, the positioning magnetic block 23 is magnetically attracted to the point rail to keep the telescopic positioning block 22 in an extended state. In this state, the first fastening screw 27 can be tightened to fix the telescopic positioning block 22. After use, loosen the first fastening screw 27 and pull the pull bolt 24 in the reverse direction. At this time, the hand pulling force and the tension of the tension spring 25 act synchronously to make the telescopic positioning block 22 return to the support seat 21.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A point rail measuring ruler, comprising a measuring ruler (1) and an auxiliary supporting device (2), wherein: The auxiliary support device (2) is arranged on the measuring scale (1); The auxiliary support device (2) is characterized in that: the auxiliary support device (2) comprises a support seat (21), a telescopic positioning block (22), a positioning magnetic block (23), a pull bolt (24) and a tension spring (25), wherein: One end of the support seat (21) is fixedly arranged on the measuring scale (1), and the other end is provided with a first countersunk hole (201); a first through hole (202) is provided on the side of the support seat (21); the first through hole (202) is connected to the first countersunk hole (201), and the central axes of the first through hole (202) and the first countersunk hole (201) are perpendicular to each other; One end of the telescopic positioning block (22) is slidably disposed in the first countersunk hole (201), and the other end is fixedly connected to the positioning magnetic block (23); One end of the pull bolt (24) is fixedly arranged on the side of the telescopic positioning block (22), and the other end passes through the first through hole (202) to the outside of the support seat (21); The tension spring (25) is placed in the first countersunk hole (201), one end of the tension spring (25) is fixedly connected to the bottom of the first countersunk hole (201), and the other end is fixedly connected to one end of the telescopic positioning block (22), and the tension of the tension spring (25) is smaller than the magnetic force of the positioning magnetic block (23).

2. A point rail measuring ruler as claimed in claim 1, characterized in that: The first through hole (202) extends into a rectangular shape along the sliding direction of the telescopic positioning block (22).

3. A point rail measuring ruler as claimed in claim 1, characterized in that: A second countersunk hole (203) is provided on one end of the telescopic positioning block (22) close to the tension spring (25), and the inner diameter of the second countersunk hole (203) is larger than the outer diameter of the tension spring (25), wherein: One end of the tension spring (25) away from the bottom of the first countersunk hole (201) is fixedly connected to the bottom of the second countersunk hole (203).

4. A point rail measuring ruler as claimed in claim 1, characterized in that: A first threaded hole (204) is provided on the side of the telescopic positioning block (22) at a position corresponding to the pull bolt (24), and one end of the pull bolt (24) is threadedly connected to the first threaded hole (204).

5. A point rail measuring ruler as claimed in claim 4, characterized in that: One end of the pull bolt (24) away from the first threaded hole (204) is in the shape of a ball head.

6. A point rail measuring ruler as claimed in claim 1, characterized in that: A third countersunk hole (205) is provided on one end of the telescopic positioning block (22) away from the tension spring (25), wherein: The positioning magnetic block (23) is embedded in the third countersunk hole (205).

7. A point rail measuring ruler as claimed in claim 6, characterized in that: The auxiliary support device (2) further comprises a rubber ring (26), wherein: The rubber ring (26) is fixedly arranged on an end of the telescopic positioning block (22) away from the tension spring (25); The rubber ring (26) and the third counterbore (205) are concentric.

8. A point rail measuring ruler as claimed in claim 1, characterized in that: The auxiliary support device (2) further comprises a first fastening screw (27), wherein: A second threaded hole (206) is provided on the side of the support seat (21), the second threaded hole (206) is connected to the first countersunk hole (201), and the central axes of the second threaded hole (206) and the first countersunk hole (201) are perpendicular to each other; One end of the first fastening screw (27) is threaded into the second threaded hole (206) and selectively abuts against the side of the telescopic positioning block (22).

9. A point rail measuring ruler as claimed in claim 7, characterized in that: The measuring scale (1) comprises a reduction value measuring scale (11) and a side wear measuring scale (12), wherein: The reduction value measuring scale (11) is arranged vertically; The side wear measurement scale (12) is slidably arranged on the reduction value measurement scale (11) in a horizontal direction; The support seat (21) is parallel to the side wear measurement scale (12) and is arranged below the side wear measurement scale (12); One end of the support seat (21) is fixedly arranged on the reduction value measuring scale (11).

10. A point rail measuring ruler as claimed in claim 9, characterized in that: The auxiliary support device (2) further comprises a second fastening screw (28), wherein: A third threaded hole (207) is horizontally arranged on an upper edge of one end of the support seat (21) away from the positioning magnetic block (23), and a second through hole (208) is vertically arranged on an upper edge of one end of the support seat (21) away from the positioning magnetic block (23), and the second through hole (208) is connected to the third threaded hole (207); One end of the second fastening screw (28) is screwed into the third threaded hole (207); The lower end of the reduction value measuring scale (11) passes through the second through hole (208), and one end of the second fastening screw (28) abuts against the side end of the reduction value measuring scale (11).

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