A coupler height measuring fixture

Abstract

A coupler height measuring fixture includes a horizontal section, a vertical section, and a measuring section. The horizontal and vertical sections are detachably installed, and the vertical section can be horizontally displaced along the horizontal section. The vertical and measuring sections are also detachably installed, and the measuring section can be vertically displaced along the vertical section. The vertical section includes a movable block with a square first through slot on one side. A vertical block is fixedly installed on the top surface of the movable block, and a long strip-shaped placement slot is opened in front of the vertical block. A measuring ruler is fixedly installed in the placement slot. A locking component that can lock the movable block onto the horizontal section is installed on one side of the movable block. Due to the modular and detachable structure, when a component of the fixture malfunctions, there is no need to return the entire fixture to the factory for repair; only the corresponding damaged component needs to be replaced. Compared with traditional integrated tools that require overall repair, this significantly reduces the maintenance cost throughout the equipment's life cycle and avoids the problem of long-term equipment idleness due to overall repair.

Description

Technical Field

[0001] This utility model belongs to the technical field of train auxiliary equipment, specifically relating to a coupler height measuring tool. Background Technology

[0002] In the field of rail transit equipment, the train coupler, as a core component connecting adjacent carriages, directly determines the safety and stability of train formation operation. The coupler height must strictly match the train design standards. If the height deviation is too large, it can easily lead to problems such as coupler detachment and uneven force during train start-up and braking. This may not only cause carriage impact and abnormal noise, but in severe cases, it may also endanger train operation safety. Therefore, accurate measurement of the coupler height is a key process in train manufacturing, inspection, and maintenance.

[0003] Currently, the industry mainly relies on traditional tools for measuring the height of couplers, such as general-purpose tape measures, vernier calipers with simple brackets, or dedicated measuring instruments with integrated fixed structures. These existing solutions have gradually revealed many technical pain points in practical applications, making it difficult to meet the needs of efficient and accurate measurement.

[0004] Traditional measuring tools lack a stable reference positioning structure. During measurement, the tool must be manually held and aligned with the coupler center and the rail reference surface. Hand tremors and line-of-sight deviations during operation can easily cause reference misalignment, especially in outdoor maintenance scenarios where environmental factors such as light and wind speed can interfere, often exceeding the industry standard allowable range of ±2mm. Furthermore, the core measuring components of existing dedicated measuring instruments (such as the scale) are often directly exposed or in contact with sliding parts. Over long-term use, friction from the sliding parts causes wear and blurring of the scale markings, further reducing the reliability of the measurement data and requiring frequent scale replacements, increasing maintenance costs. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a tooling for measuring the height of a coupler.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a coupler height measuring fixture, comprising a horizontal part, a vertical part, and a measuring part, wherein the horizontal part and the vertical part are detachably installed, and the vertical part can be horizontally displaced along the horizontal part; the vertical part and the measuring part are detachably installed, and the measuring part can be vertically displaced along the vertical part.

[0007] The vertical part includes a movable block. A square first through slot is opened on one side of the movable block. A vertical block is fixedly installed on the top surface of the movable block. A long strip-shaped placement slot is opened on the front of the vertical block. A measuring ruler is fixedly installed in the placement slot. The front of the measuring ruler is not on the same vertical center plane as the front of the vertical block. A locking component that can lock the movable block on the horizontal part is installed on one side of the movable block.

[0008] Preferably, the distance between the front of the measuring ruler and the front of the vertical block is at least 2 cm.

[0009] Preferably, the horizontal part includes a long strip block, a limiting block is fixedly installed on one bottom surface of the long strip block, and several insertion holes are opened in the middle of the top surface of the long strip block.

[0010] Preferably, the locking component includes:

[0011] A horizontal block, one side of which is fixedly installed on one side of the movable block, is located above the first through slot;

[0012] A through hole, wherein the through hole is formed on the top surface of the horizontal block;

[0013] A plug rod, which can pass through a through hole and be inserted into one of the sockets.

[0014] Preferably, the measuring unit includes:

[0015] A sliding block, with a horizontal plate fixedly installed behind it;

[0016] A square second through slot is provided on the top surface of the sliding block and extends through both the upper and lower ends of the sliding block, allowing the vertical block to pass through the second through slot.

[0017] An observation port is provided in front of the sliding block and communicates with the interior of the second through slot.

[0018] A locking element that can lock the sliding block onto the vertical block.

[0019] Preferably, the locking element includes a screw hole, which is opened on one side of the sliding block and communicates with the interior of the second through groove. A threaded rod is provided in the screw hole through the internal thread.

[0020] Preferably, an indicator arrow is fixedly installed on the front of the sliding block.

[0021] Preferably, a slot is provided on the front of the other side of the long strip block, an insert block is slidably installed in the slot, and an L-shaped block is fixedly installed at the front end of the bottom of the insert block.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] (1) Stable benchmark positioning, reducing environmental and operational interference: The tooling uses a long strip block on the horizontal part to fit against the top surface of the rail, and with the help of the limiting block and L-shaped block, the long strip block is positioned in both directions (the limiting block fits against the left rail and the L-shaped block fits against the right rail), forming a measurement benchmark that is strongly bound to the rail reference surface. This completely solves the deviation problem caused by the traditional tool of "manual hand-held benchmark finding". Even in complex environments such as strong winds and strong light outdoors, the measurement benchmark can be kept stable, providing accurate data support for coupler height adjustment.

[0024] (2) Anti-wear design extends the life of measuring components and maintains accuracy stability: The measuring ruler installed in the slot of the vertical block has a distance of at least 2cm between its front and the front of the vertical block, and the sliding block of the measuring part is fitted on the outside of the vertical block through the second through slot. During the sliding process, there is no direct contact between the measuring ruler and the measuring part. This design avoids the problem of scale wear and blurring caused by "sliding parts rubbing against the scale" in traditional tools from the root. It enables the measuring ruler to maintain clear scale during long-term high-frequency use without frequent replacement. This reduces the accuracy fluctuation caused by component replacement and reduces maintenance costs.

[0025] (3) Modular and detachable design, easy to carry and quick assembly: The horizontal part, vertical part and measuring part adopt a detachable installation structure (the moving block cooperates with the long block through the first through groove, and the sliding block cooperates with the vertical block through the second through groove). After disassembly, each part is small in size, and the operator can easily carry it to any work point along the track, which solves the problem of the inconvenience of carrying traditional integrated measuring instruments. At the same time, the assembly process does not require professional tools and can be completed within 30 seconds, further improving the flexibility of on-site operation.

[0026] (4) Partial replacement reduces maintenance costs: Due to the modular and detachable structure, when a certain part of the tooling (such as a stuck sliding block or worn threaded rod) fails, there is no need to return the entire tooling to the factory for repair. Only the corresponding damaged part needs to be replaced. Compared with the traditional integrated tooling, which requires overall repair, this significantly reduces the maintenance cost of the entire life cycle of the equipment and avoids the problem of long-term idleness of the equipment due to overall repair. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0028] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an assembly diagram of the horizontal and vertical parts; Figure 3 This is a schematic diagram of the assembly of the vertical section and the measuring section; Figure 4 This is a structural diagram of the horizontal section; Figure 5 This is a structural diagram of the vertical section; Figure 6 This is a structural diagram of the measuring section; Figure 7 This is a schematic diagram of the insert rod; Figure 8 This is a schematic diagram of the L-shaped block; Figure 9 yes Figure 1 A magnified view of part A; Figure 10 yes Figure 5 A magnified view of part B;

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Moving block; 2. First through slot; 3. Vertical block; 4. Placement slot; 5. Measuring ruler; 6. Long strip block; 7. Limiting block; 8. Insertion hole; 9. Horizontal block; 10. Through hole; 11. Insert rod; 12. Sliding block; 13. Second through slot; 14. Horizontal plate; 15. Observation port; 16. Screw hole; 17. Threaded rod; 18. Indicating arrow; 19. Slot; 20. Insert block; 21. L-shaped block; 22. Groove; 23. Through hole. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0033] Example 1

[0034] The following is combined Figures 1-10 A further description of a coupler height measuring fixture in Example 1 is provided, such as... Figure 1 As shown, it includes a horizontal part, a vertical part, and a measuring part. The horizontal part and the vertical part are detachably installed, and the vertical part can be horizontally displaced along the horizontal part. The vertical part and the measuring part are detachably installed, and the measuring part can be vertically displaced along the vertical part.

[0035] The vertical part includes a movable block 1. A square first through slot 2 is opened on one side of the movable block 1. A vertical block 3 is fixedly installed on the top surface of the movable block 1. A long strip-shaped placement slot 4 is opened on the front of the vertical block 3. A measuring ruler 5 is fixedly installed in the placement slot 4. The front of the measuring ruler 5 is not on the same vertical center plane as the front of the vertical block 3. A locking component that can lock the movable block on the horizontal part is installed on one side of the movable block 1.

[0036] First, the horizontal part passes through the first through slot 2, and then the horizontal part is placed on the two rails. The moving block 1 moves horizontally back and forth on the horizontal part, and the movement range is between the two rails. According to the orientation of the coupler, the position of the vertical part is adjusted, and then the measuring part is installed on the vertical part. Through the vertical displacement of the measuring part, that is, it moves to the center position of the coupler, and at this time, the measuring ruler 5 is read to measure the coupler height data. During the vertical displacement of the measuring part, since the front of the measuring ruler 5 is not on the same vertical center plane as the front of the vertical block 3, the scale on the measuring ruler 5 will not be worn during the up and down sliding of the measuring part, so that the scale remains clear during long-term use.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 10 As shown, the distance between the front of the measuring ruler 5 and the front of the vertical block 3 is at least 2cm.

[0038] After the measuring ruler 5 is placed in the placement slot 4, the front of the measuring ruler 5 is located in front of and behind the vertical block 3, with a distance of at least 2cm. During the up-and-down sliding of the measuring part, the measuring part will not come into contact with the measuring ruler 5, thus preventing wear on the measuring ruler 5. This keeps the scale on the measuring ruler 5 clear and makes the reading more accurate.

[0039] like Figure 4 As shown, the horizontal part includes a long strip block 6, a limiting block 7 is fixedly installed on one bottom surface of the long strip block 6, and several insertion holes 8 are opened in the middle of the top surface of the long strip block 6.

[0040] The long strip 6 passes through the first through slot 2 on the moving block 1, and the bottom surface of the long strip 6 contacts the top surface of the two rails. Then, the long strip 6 is pulled towards the right rail so that the limiting block 7 contacts the left side of the left rail, thus limiting the long strip 6 and preventing it from moving too much. The vertical block 3 is adjusted according to the position of the coupler. The moving block 1 slides on the long strip 6, which drives the vertical block 3 to adjust its position and adjust the position of the measuring part so that the measuring part is close to the coupler.

[0041] like Figure 2 As shown, the locking component includes:

[0042] Horizontal block 9, one side of which is fixedly installed on one side of the movable block 1, and the horizontal block 9 is located above the first through groove 2;

[0043] Through hole 10, wherein the through hole 10 is formed on the top surface of the horizontal block 9;

[0044] The insertion rod 11 can pass through the through hole 10 and be inserted into one of the insertion holes 8.

[0045] As the moving block 1 moves horizontally back and forth along the long strip block 6, the horizontal block 9 moves horizontally back and forth with the moving block 1. After the position adjustment of the moving block 1 is completed, the insertion rod 11 is passed through the through hole 10 and inserted into one of the insertion holes 8. At this time, the moving block 1 is locked on the long strip block 6 and the moving block 1 stops moving. The operation is simple and convenient.

[0046] like Figure 1 and Figure 6 As shown, the measuring unit includes:

[0047] Sliding block 12, with a horizontal plate 14 fixedly installed behind it;

[0048] A square second through slot 13 is formed on the top surface of the sliding block 12 and extends through both the upper and lower ends of the sliding block 12. The vertical block 3 can pass through the second through slot 13.

[0049] The observation port 15 is located in front of the sliding block 12 and communicates with the interior of the second through groove 13.

[0050] A locking element is provided, which can lock the sliding block 12 onto the vertical block 3.

[0051] The sliding block 12 is fitted with the vertical block 3, with the top of the vertical block 3 passing through the second through slot 13. At this time, the sliding block 12 can move up and down along the vertical block 3, driving the horizontal plate 14 to move up and down. The height of the horizontal plate 14 is adjusted so that the horizontal plate 14 and the center of the coupler are on the same horizontal plane. Then, the sliding block 12 is locked onto the vertical block 3 by the locking member, so that the sliding block 12 stops moving down or up. At this time, the scale of the measuring ruler 5 is observed through the observation port 15 to obtain the height data of the coupler center.

[0052] like Figure 1 and Figure 3 As shown, the locking component includes a screw hole 16, which is opened on one side of the sliding block 12. The screw hole 16 communicates with the interior of the second through groove 13, and a threaded rod 17 is provided in the screw hole 16 with internal thread engagement.

[0053] When it is necessary to stop the sliding block 12 from moving, fix the sliding block 12 with the left hand and rotate the threaded rod 17 with the right hand. The threaded rod 17 moves towards the vertical block 3, and one end face of the threaded rod 17 contacts one side of the vertical block 3. The gradual rotation of the threaded rod 17 makes the threaded rod 17 gradually close to the vertical block 3, fixing the sliding block 12 on the vertical block 3. Then, observe the scale on the measuring ruler 5 through the observation port 15 to obtain the data of the coupler center height.

[0054] like Figure 9 As shown, an indicator arrow 18 is fixedly installed on the front of the sliding block 12.

[0055] The arrow 18 points towards the scale of the measuring ruler 5. When observing the scale of the measuring ruler 5, the arrow 18 makes it easy to directly observe the scale on the measuring ruler 5.

[0056] like Figure 1 and Figure 8 As shown, a slot 19 is opened on the front of the other side of the long strip block 6, and an insert block 20 is slidably installed in the slot 19. An L-shaped block 21 is fixedly installed at the front end of the bottom of the insert block 20.

[0057] After the long strip 6 is placed on the two rails and the limiting block 7 contacts the rail on the left, the insert block 20 is inserted into the slot 19. The vertical block of the L-shaped block 21 contacts the front of the long strip 6, and the left side of the horizontal block of the L-shaped block 21 is in contact with the right side of the rail on the right. At this time, the long strip 6 is limited by the L-shaped block 21 and the limiting block 7 to prevent the long strip 6 from shifting. The distance between the limiting block 7 and the L-shaped block 21 conforms to the standard track gauge, which is 1435mm.

[0058] Example 2

[0059] like Figure 1 , Figure 3 , Figure 6 As shown, a groove 22 is formed on the top surface of the horizontal plate 14, and a through hole 23 is formed on the inner wall of the bottom surface of the groove 22. The through hole 23 penetrates the bottom surface of the horizontal plate 14. When the horizontal plate 14 is located at the center of the coupler, a handheld laser rangefinder is placed in the groove 22. The emitting end of the laser rangefinder is located at the through hole 23, and the emitted beam passes through the through hole 23. The height of the coupler center is measured by the laser rangefinder and verified by the data of the measuring ruler 5.

[0060] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A coupler height measuring tool, characterised in that, It includes a horizontal section, a vertical section, and a measuring section. The horizontal and vertical sections are detachable and can be installed separately. The vertical section can be horizontally displaced along the horizontal section. The vertical and measuring sections are detachable and can be vertically displaced along the vertical section. The vertical part includes a movable block (1), a square first through slot (2) is opened on one side of the movable block (1), a vertical block (3) is fixedly installed on the top surface of the movable block (1), a long strip-shaped placement slot (4) is opened on the front of the vertical block (3), a measuring ruler (5) is fixedly installed in the placement slot (4), the front of the measuring ruler (5) is not on the same vertical center plane as the front of the vertical block (3), and a locking component that can lock the movable block on the horizontal part is installed on one side of the movable block (1).

2. A vehicle drawbar height measuring tool as claimed in claim 1, wherein, The distance between the front of the measuring ruler (5) and the front of the vertical block (3) is at least 2 cm.

3. A coupler height measuring tool according to claim 1, wherein, The horizontal part includes a long strip (6), a limiting block (7) is fixedly installed on one bottom side of the long strip (6), and several insertion holes (8) are opened in the middle of the top surface of the long strip (6).

4. A vehicle drawbar height measuring tool as claimed in claim 3, wherein, The locking component includes: A horizontal block (9) is fixedly installed on one side of a movable block (1), and the horizontal block (9) is located above the first through groove (2). A through hole (10) is provided on the top surface of the horizontal block (9); The insert (11) can pass through the through hole (10) and be inserted into one of the holes (8).

5. A coupler height measuring tool according to claim 1, wherein, The measuring unit includes: A sliding block (12) is fixedly mounted on the rear of the sliding block (12) with a horizontal plate (14). A square second through slot (13) is provided on the top surface of the sliding block (12) and extends through the upper and lower ends of the sliding block (12). The vertical block (3) can pass through the second through slot (13). The observation port (15) is located in front of the sliding block (12) and communicates with the inside of the second through groove (13); The locking element is capable of locking the sliding block (12) onto the vertical block (3).

6. A vehicle drawbar height measuring tool as claimed in claim 5, wherein, The locking component includes a screw hole (16), which is opened on one side of the sliding block (12). The screw hole (16) communicates with the inside of the second through groove (13), and a threaded rod (17) is provided in the screw hole (16) with internal thread engagement.

7. A coupler height measuring tool according to claim 5, wherein, An indicator arrow (18) is fixedly installed on the front of the sliding block (12).

8. A coupler height measuring tool according to claim 3, wherein, A slot (19) is opened on the front of the other side of the long strip (6), and an insert (20) is slidably installed in the slot (19). An L-shaped block (21) is fixedly installed at the front end of the bottom of the insert (20).

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