Metro vehicle coupler height measuring device

Abstract

The utility model discloses a metro vehicle coupler height measuring device, which comprises a fixed seat and a laser measuring instrument capable of measuring the height of a coupler, a connecting hook is horizontally and convexly arranged on one side of the fixed seat, the connecting hook can horizontally extend into and be clamped into a horizontal through groove of the coupler, and the fixed seat is vertically provided with a mounting groove for fixing the laser measuring instrument. The laser measuring instrument can slide along the mounting groove in the vertical direction; a first positioning piece and a second positioning piece which are parallel to each other are arranged on the inner concave surface of the connecting hook, the first positioning piece is arranged close to the fixing seat, the connecting hook can be clamped into a horizontal through groove of the car coupler, the car coupler knuckle is located between the first positioning piece and the second positioning piece, and the first positioning piece and the second positioning piece can be fixed to the car coupler knuckle in an abutting mode; and the first positioning piece and the second positioning piece are both elastically connected with the connecting hook. The coupler height measuring device is simple in structure and convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the field of height measurement technology, specifically relating to a device for measuring the height of a subway vehicle coupler. Background Technology

[0002] Currently, the subway car coupler is one of the most fundamental and crucial components connecting trains. Its primary function is to couple trains or cars together, connecting individual cars into a single train formation, maintaining a certain distance between them, or facilitating emergency coupling, thereby ensuring the stability and safety of subway train operation. The coupler connects the train's internal pneumatic, electrical, and mechanical systems, transmitting traction force, mitigating longitudinal forces and impacts between trains, and establishing electrical and pneumatic connections between vehicles. If the train coupler height exceeds the standard, the fully automatic coupler cannot engage properly. In the event of a sudden fault on the main line, emergency trains cannot be docked, affecting train safety and mainline operation.

[0003] Commonly used couplers, such as fully automatic couplers, require no manual operation and can automatically couple mechanical and electrical couplers on subway trains. When a mainline train needs rescue coupling, the couplers must be in good condition to ensure timely and effective train rescue operations. To ensure safe and reliable train coupling, regular routine maintenance of the train couplers is required. According to the requirements for fully automatic coupler docking, the height of the couplers of two trains to be coupled should be approximately 720mm to achieve automatic coupling. Therefore, system maintenance work requires height measurement of the fully automatic couplers of each subway train. In the subway coupler height measurement and maintenance work, two people are required: one to operate the measuring tape and the other to take the reading. According to the measurement process requirements, the coupler height is: the distance from the upper end face of the coupler tongue to the rail minus half the size of the coupler tongue. Each measurement requires measuring the size of the coupler tongue and then calculating the coupler height, which is inconvenient for data reading. The coupler height is the vertical distance from the middle of the coupler tongue to the rail surface. If the measuring tape is not properly placed or the level is not tangent to the measuring tape, the measurement accuracy will be affected.

[0004] Therefore, a new technology is needed to solve the problem that existing technologies are not convenient for accurately measuring the height of subway car couplers. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a subway vehicle coupler height measuring device, which can accurately measure the height of the subway vehicle coupler.

[0006] The present invention adopts the following technical solution:

[0007] A subway vehicle coupler height measuring device includes a fixed base and a laser measuring instrument. A connecting hook is horizontally protruding on one side of the fixed base. The connecting hook can horizontally extend into a horizontal through groove that engages with the coupler. The fixed base is provided with a mounting groove for detachably mounting the laser measuring instrument. The mounting groove is vertically through. The laser measuring instrument can slide along the mounting groove in the vertical direction. The opening of the mounting groove is horizontally set and smaller than the size of the laser measuring instrument. The laser measuring instrument can measure the coupler height.

[0008] The concave surface of the connecting hook is provided with a first positioning member and a second positioning member that are parallel to each other. The first positioning member is located close to the fixed seat. The connecting hook can be inserted into the horizontal through groove of the car coupler. The car coupler tongue is located between the first positioning member and the second positioning member. The first positioning member and the second positioning member can abut and fix with the car coupler tongue.

[0009] Both the first positioning element and the second positioning element are elastically connected to the connecting hook.

[0010] As a further improvement to the technical solution of this utility model, the first positioning member includes at least two first positioning beads spaced apart in the vertical direction, and the second positioning member includes at least two second positioning beads spaced apart in the vertical direction.

[0011] As a further improvement to the technical solution of this utility model, the concave surface of the connecting hook is an arc-shaped surface, each of the first positioning beads and each of the second positioning beads correspond one-to-one, and the horizontal distance between each of the first positioning beads and the corresponding second positioning beads is less than the diameter of the circle in which the arc-shaped surface is located.

[0012] As a further improvement to the technical solution of this utility model, the concave surface of the connecting hook is provided with a first positioning groove corresponding to each of the first positioning beads and a second positioning groove corresponding to each of the second positioning beads; each positioning groove can be used to embed the first positioning bead or the second positioning bead, and each of the first positioning grooves and each of the second positioning grooves is provided with an elastic element, one end of each elastic element is connected to the connecting hook, and the other end is connected to the first positioning bead or the second positioning bead.

[0013] As a further improvement to the technical solution of this utility model, the fixing base includes a first main body and a second main body arranged in parallel and spaced apart. The first main body and the second main body are respectively provided with a first guide groove and a second guide groove on their respective sides that are close to each other. The first guide groove and the second guide groove are both connected through each other in the vertical direction. The openings of the first guide groove and the second guide groove are both horizontal and opposite to each other. The laser measuring instrument can be inserted into the first guide groove and the second guide groove on both sides respectively. The space between the inner walls of the first guide groove and the second guide groove forms the mounting groove. The laser measuring instrument is detachably fixedly connected to the first main body and the second main body respectively.

[0014] The end of the connecting hook near the first positioning bead is detachably and fixedly connected to the lower part of the first body and the second body, respectively; the distance between the side of the first body and the second body away from the connecting hook forms the groove of the mounting slot.

[0015] As a further improvement to the technical solution of this utility model, the lower end of the first main body is provided with a first protruding plate, which is parallel to the bottom surface of the first guide groove; the lower end of the second main body is provided with a second protruding plate, which is parallel to the bottom surface of the second guide groove; the first protruding plate and the second protruding plate are both vertically arranged and parallel to each other; a connecting part is provided at one end of the connecting hook near the fixed seat, the connecting part is located between the first protruding plate and the second protruding plate, and the connecting part is detachably fixedly connected to the first protruding plate and the second protruding plate.

[0016] As a further improvement to the technical solution of this utility model, the connecting part is provided with a connecting groove that communicates with the mounting groove. The upper end of the connecting groove is connected to the mounting groove. The connecting groove is vertically connected and allows the laser measuring instrument to slide through it in the vertical direction. The opening of the connecting groove is horizontally set and is located on the same side as the opening of the mounting groove. The opening of the connecting groove is located on the side away from the connecting hook.

[0017] As a further improvement to the technical solution of this utility model, the connecting part includes two symmetrically arranged connecting blocks, both of which are located between the first convex plate and the second convex plate. The two connecting blocks are detachably fixed to the first convex plate and the second convex plate respectively, and their ends are fixed to the connecting hooks. The connecting groove is formed between the two connecting blocks.

[0018] As a further improvement to the technical solution of this utility model, each of the connecting blocks includes a first connecting plate and a second connecting plate that are fixedly connected in an L-shape in sequence. One first connecting plate, one end of the connecting hook near the first positioning member, and another first connecting plate are connected in a C-shape in sequence. The two second connecting plates are located on the side where the two first connecting plates are close to each other, and the distance between the two second connecting plates forms the opening of the communicating groove.

[0019] The two first connecting plates are detachably fixedly connected to the first protruding plate and the second protruding plate, respectively.

[0020] As a further improvement to the technical solution of this utility model, the first main body and the second main body are symmetrically arranged. The first main body includes a first plate, a second plate and a third plate that are fixedly connected in a U-shape in sequence. The second main body includes a fourth plate, a fifth plate and a sixth plate that are fixedly connected in a U-shape in sequence.

[0021] The fixing base also includes a third main body, the two ends of which are fixedly connected to the third plate and the fourth plate respectively, and the third plate, the third main body, and the fourth plate are an integral connection structure;

[0022] The spacing between the two second connecting plates is equal to the spacing between the first plate and the sixth plate.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] The subway vehicle coupler height measuring device of this solution can install a laser measuring instrument and a connecting hook on a fixed base. Before measurement, the position of the laser measuring instrument can be adjusted by sliding it up and down. After adjustment, the laser measuring instrument can be fixed to the fixed base with bolts. During measurement, the connecting hook is inserted into the horizontal through groove of the coupler to perform the measurement. It can accurately measure the coupler height, and the structure is simple and easy to operate. Attached Figure Description

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] Figure 1 This is a schematic diagram of the connection structure between Embodiment 1 of this utility model and the coupler;

[0027] Figure 2 This is a top view of the connection structure between Embodiment 1 of this utility model and the coupler;

[0028] Figure 3 This is a front view of the coupler connection structure of Embodiment 1 of this utility model;

[0029] Figure 4This is a side view of the coupler connection structure of Embodiment 1 of this utility model;

[0030] Figure 5 This is another side view of the coupler connection structure of Embodiment 1 of this utility model;

[0031] Figure 6 This is an exploded view (perspective) of the connection structure between the fixing seat and the connecting hook in Embodiment 1;

[0032] Figure 7 This is the main view of the connecting hook structure;

[0033] Figure 8 yes Figure 6 A schematic diagram of the fixed base structure viewed from below;

[0034] Figure 9 yes Figure 6 Side view of the fixed base structure in the middle;

[0035] Figure 10 yes Figure 6 Main view of the fixed base structure in the middle;

[0036] Figure 11 This is a perspective view of the overall structure of Embodiment 2 of this utility model.

[0037] Figure label:

[0038] 1-Laser measuring instrument;

[0039] 2-Fixed base; 21-Mounting slot; 22-First main body; 221-First plate; 222-Second plate; 223-Third plate; 224-First protruding plate; 225-First guide groove; 23-Second main body; 231-Fourth plate; 232-Fifth plate; 233-Sixth plate; 234-Second guide groove; 235-Second protruding plate; 24-Third main body;

[0040] 3-Connecting hook; 31-Arc-shaped surface; 32-First positioning groove; 33-Second positioning groove; 34-Connecting block; 341-First connecting plate; 342-Second connecting plate; 35-Communication groove; 36-Second positioning bead;

[0041] 4-Couple; 41-Couple tongue; 42-Horizontal through slot;

[0042] 5-Guide rail. Detailed Implementation

[0043] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0044] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0045] Example 1

[0046] Reference Figure 1 and Figure 10 A device for measuring the height of a subway coupler 4 includes a fixed base 2 and a laser measuring instrument 1. The laser measuring instrument 1 uses infrared laser measurement to measure the distance from the coupler 4 to the rail surface. The distance measurement is fast and accurate, allowing maintenance work that originally required two people to be completed by one person quickly. The operation is simple and convenient, greatly saving manpower and improving efficiency. A connecting hook 3 is horizontally protruding on one side of the fixed base 2. The connecting hook 3 is horizontally positioned, while the fixed base 2 is vertically positioned. The connection between the fixed base 2 and the connecting hook 3 is L-shaped. The connecting hook 3 can horizontally extend into and engage or hook the horizontal through groove 42 of the coupler 4. The fixed base 2 has a mounting groove 21 for detachably mounting the laser measuring instrument 1. The mounting groove 21 is vertically through, and the laser measuring instrument 1 can slide vertically along the mounting groove 21. The opening of the mounting groove 21 is horizontal and smaller than the size of the laser measuring instrument 1. The laser measuring instrument 1 can measure the height of the coupler 4. The concave surface of the connecting hook 3 is provided with a first positioning member and a second positioning member that are parallel to each other. The first positioning member is located close to the fixed base 2. The connecting hook 3 can be inserted into the horizontal through groove 42 of the coupler 4. The hook tongue 41 of the coupler 4 is located between the first positioning member and the second positioning member. The first positioning member and the second positioning member can abut and fix with the hook tongue 41 of the coupler 4. Both the first positioning member and the second positioning member are elastically connected to the connecting hook 3. Infrared laser measurement is used.

[0047] The metro coupler 4 height measuring device in this solution has a simple structure and is easy to operate. During measurement, the laser measuring instrument 1 and the connecting hook 3 are installed on the fixed base 2. Then, the connecting hook 3 is inserted into the horizontal through groove 42 of the coupler 4. The hook tongue 41 of the coupler 4 can extend between the first and second positioning parts and abut against them for fixation, thus allowing for the measurement of the coupler 4 height. The measurement and maintenance of the coupler 4 height is relatively simple and quick, improving the efficiency of coupler 4 height measurement and adjustment, saving maintenance time, reducing the workload of maintenance personnel, and saving operating costs for the company. It can efficiently and accurately measure the coupler 4 height, making maintenance quality more stable and efficient, improving the accuracy of coupler 4 height measurement and adjustment, which is beneficial to the safe operation of the coupler 4 system, ensuring the safe operation of metro vehicles, and reducing the workload of maintenance personnel.

[0048] Specifically, the first positioning element includes at least two first positioning beads spaced apart in the vertical direction, and the second positioning element includes at least two second positioning beads 36 spaced apart in the vertical direction.

[0049] Specifically, the concave surface of the connecting hook 3 is an arc-shaped surface 31, and each of the first positioning beads and each of the second positioning beads 36 corresponds one-to-one. The horizontal distance between each of the first positioning beads and the corresponding second positioning beads 36 is less than the diameter of the circle containing the arc-shaped surface 31. The height of the connecting hook 3 is adapted to the height of the horizontal through groove 42 of the hook 4. The connecting hook 3 can be a common bent hook type.

[0050] Specifically, the concave surface of the connecting hook 3 is provided with a first positioning groove 32 corresponding to each of the first positioning beads and a second positioning groove 33 corresponding to each of the second positioning beads 36. Each positioning groove allows the first positioning bead or the second positioning bead 36 to be embedded. Each first positioning groove 32 and each second positioning groove 33 is provided with an elastic element. One end of each elastic element is connected to the connecting hook 3, and the other end is connected to the first positioning bead or the second positioning bead 36. One end of each elastic element can be fixed in the first positioning groove 32 or the second positioning groove 33. The elastic element can be a spring. During measurement, the connecting hook 3 is inserted into the horizontal through groove 42 of the coupler 4. The connecting hook 3 and the hook tongue 41 of the coupler 4 are fully engaged or matched. Four positioning beads can be provided on the inner side of the connecting hook 3. The elastic element allows the positioning beads to extend and retract relative to the positioning groove structure. When the connecting hook 3 is engaged with the hook tongue 41, the first positioning beads and the second positioning beads 36 pop out and together clamp the hook tongue 41, thereby achieving the function of limiting and fixing. At this time, the hook tongue 41 of the car hook 4 is located between the first positioning beads and the second positioning beads 36, and the arc surface 31 can fit with the surface of the hook tongue 41 at the corresponding position.

[0051] Specifically, the fixing base 2 includes a first main body 22 and a second main body 23 arranged parallel and spaced apart. The first main body 22 and the second main body 23 are respectively provided with a first guide groove 225 and a second guide groove 234 on their adjacent sides. The first guide groove 225 and the second guide groove 234 are both vertically connected, and their openings are horizontal and opposite to each other. The laser measuring instrument 1 can be inserted into the first guide groove 225 and the second guide groove 234 from both sides. The space between the inner walls of the first guide groove 225 and the second guide groove 234 forms the mounting groove 21. The laser measuring instrument 1 is detachably fixedly connected to the first main body 22 and the second main body 23. The end of the connecting hook 3 near the first positioning bead is detachably fixedly connected to the lower part of the first main body 22 and the second main body 23. The distance between the sides of the first main body 22 and the second main body 23 away from the connecting hook 3 forms the opening of the mounting groove 21. The vertically arranged first guide groove 225 and second guide groove 234 on both sides ensure the verticality of the device installation and also ensure that the laser measuring instrument 1 is installed vertically for measurement. The first main body 22 and the second main body 23 are arranged symmetrically.

[0052] Specifically, the lower end of the first main body 22 is provided with a first protruding plate 224, which is parallel to the bottom surface of the first guide groove 225; the lower end of the second main body 23 is provided with a second protruding plate 235, which is parallel to the bottom surface of the second guide groove 234; the first protruding plate 224 and the second protruding plate 235 are both vertically arranged and parallel to each other; the connecting hook 3 has a connecting part at one end near the fixing seat 2, which is located between the first protruding plate 224 and the second protruding plate 235, and the connecting part is detachably fixedly connected to the first protruding plate 224 and the second protruding plate 235. The first protruding plate 224 and the second protruding plate 235 are symmetrically arranged.

[0053] Specifically, the connecting part is provided with a connecting groove 35 that communicates with the mounting groove 21. The upper end of the connecting groove 35 is connected to the mounting groove 21. The connecting groove 35 is vertically continuous and allows the laser measuring instrument 1 to slide through vertically. The opening of the connecting groove 35 is horizontally positioned and located on the same side as the opening of the mounting groove 21. The opening of the connecting groove 35 is located on the side away from the connecting hook 3. The corresponding mounting groove 21 and connecting groove 35 are vertically connected to form a vertical guide rail 5. The laser measuring instrument 1 is slidably inserted into the two sides of the guide rail 5. The position of the laser measuring instrument 1 within the guide rail 5 can be adjusted by sliding. The height of the laser measuring instrument 1 can be adjusted according to actual needs so that the laser measuring instrument 1 can measure the vertical distance from the center of the coupler tongue to the rail surface. Since the height of the laser measuring instrument 1 is adjustable, it is convenient to periodically calibrate and adjust the measuring instrument, thereby improving the measurement accuracy. The first guide groove 225 and its corresponding lower part of the connecting groove 35 form one side of the guide rail 5, and the second guide groove 234 and its corresponding lower part of the connecting groove 35 form the other side of the guide rail 5.

[0054] Specifically, the connecting part includes two symmetrically arranged connecting blocks 34, both of which are located between the first protruding plate 224 and the second protruding plate 235. The two connecting blocks 34 are detachably fixedly connected to the first protruding plate 224 and the second protruding plate 235 respectively, and their ends are fixed to the connecting hook 3. A communicating groove 35 is formed between the two connecting blocks 34. The vertical dimensions of the two connecting blocks 34 can be set according to actual conditions, and the bottom surfaces of the two connecting blocks 34 can be flush with the first protruding plate 224 and the second protruding plate 235.

[0055] Specifically, each connecting block 34 includes a first connecting plate 341 and a second connecting plate 342 arranged in an L-shape and fixedly connected in sequence. One first connecting plate 341, the end of the connecting hook 3 near the first positioning member, and the other first connecting plate 341 are arranged in a U-shape. The two second connecting plates 342 are located on the side of the two first connecting plates 341 that are close to each other, and the distance between the two second connecting plates 342 forms the opening of the communicating groove 35. The two first connecting plates 341 are detachably fixedly connected to the first protruding plate 224 and the second protruding plate 235, respectively. The side of the two first connecting plates 341 that are far apart from each other are respectively close to the first protruding plate 224 and the second protruding plate 235 and are detachably fixedly connected by bolts, facilitating installation and disassembly. The side of the two second connecting plates 342 that are close to each other can be flush with the two adjacent vertical sides of the first plate 221 and the sixth plate 233, respectively.

[0056] Specifically, the first body 22 and the second body 23 are symmetrically arranged. The first body 22 includes a first plate 221, a second plate 222, and a third plate 223 in a U-shape, which are fixedly connected in sequence. The second body 23 includes a fourth plate 231, a fifth plate 232, and a sixth plate 233 in a U-shape, which are fixedly connected in sequence. A first convex plate 224 is located below and fixedly connected to the second plate 222, and a second convex plate 235 is located below and fixedly connected to the fifth plate 232. On the side away from the second body 23, the side surfaces of the first convex plate 224 and the second plate 222 are on the same vertical plane. On the side away from the first body 22, the side surfaces of the second convex plate 235 and the fifth plate 232 are on the same vertical plane. The distance between the first plate 221 and the sixth plate 233 forms one opening of the mounting groove 21, and the distance between the third plate 223 and the fourth plate 231 forms another opening of the mounting groove 21. The laser measuring instrument 1 is bolted to the second plate 222 and the fifth plate 232 on opposite sides, and bolted to the lower first protrusion 224 and the second protrusion 235 on opposite sides of the connecting part. The first body 22, the laser measuring instrument 1, and the second body 23 are connected as a whole, and the connecting hook 3 is connected to this whole in an L-shape. The distance between the two second connecting plates 342 is equal to the distance between the first plate 221 and the sixth plate 233; that is, the mounting groove 21 on the side away from the connecting hook 3 is vertically aligned with the opening of the connecting groove 35. The fixing base 2 also includes a third body 24, the two ends of which are fixedly connected to the third plate 223 and the fourth plate 231 respectively. The third plate 223, the third body 24, and the fourth plate 231 are an integral connection structure. In this embodiment, the first body 22, the third body 24, and the second body 23 are connected in sequence to form an integral structure, that is, the first plate 221, the second plate 222, the third plate 223, the third body 24, the fourth plate 231, the fifth plate 232, and the sixth plate 233 are fixedly connected in sequence for ease of use. The mounting groove 21 has only one slot in the horizontal direction. The second plate 222, the fifth plate 232, the first protruding plate 224, the second protruding plate 235, and each of the first connecting plates 341 are provided with corresponding bolt holes to achieve bolt connection.

[0057] The fixing base 2 in this design is vertically positioned and is an integral structure. The fixing base 2 and the connecting hook 3 are connected in an L-shape, and the connecting hook 3 is horizontally positioned, forming an L+inverted hook structure. During installation, the connecting hook 3 can be horizontally positioned to approximate a "?" shape or flipped to mirror the "?" shape. The fixing base 2 and the connecting hook 3 are designed separately, and the connecting part can be inserted into the lower end of the fixing base 2, saving materials and reducing processing costs. Both the fixing plate and the connecting hook 3 are made of aluminum alloy, and four positioning beads are added to the concave side of the connecting hook 3: two first positioning beads and two second positioning beads 36. The device dimensions are designed to be compatible with the parameter requirements of the hook tongue 41 of the subway vehicle under test. In this design, the fixed base 2 and the connecting hook 3 are connected in an L+barbed structure, which allows the connecting hook 3 to be quickly and easily hung on the hook tongue 41 and the main body of the laser measuring instrument 1 to be fastened and fixed in an appropriate measuring position, so that the laser measuring instrument 1 can measure the vertical distance between the middle of the hook tongue and the rail surface or the vertical distance between the upper end face of the hook tongue and the rail surface.

[0058] Example 2

[0059] In this embodiment, the structure of the fixing base 2 differs from that in Embodiment 1. The fixing base 2 in this embodiment is a split design, consisting of a first main body 22 and a second main body 23, which differs from the integrated structure of the fixing base 2 in Embodiment 1. In use, the first protruding plate 224 and the second protruding plate 235 at the lower part of the first main body 22 and the second main body 23 are firstly attached to the two first connecting plates 341 on the connecting hook 3 and fixed with bolts. Multiple bolts can be used to ensure the perpendicularity of the first main body 22, the second main body 23, and the connecting hook 3, so that after the first main body 22, the second main body 23, and the connecting hook 3 are fixed, a vertical guide rail 5 is formed, and the guide rail 5 remains vertical relative to or perpendicular to the horizontally positioned connecting hook 3. The laser measuring instrument 1 is placed inside the guide rail 5, and its position is adjusted by sliding it up and down within the guide rail 5. This allows for adjustment of the height of the laser measuring instrument 1 according to actual needs, ensuring that the laser measuring instrument 1 is installed vertically for measurement. After fixing the guide rail 5 to the first body 22 and the second body 23 respectively with bolts, the connecting hook 3 can be horizontally hooked into the horizontal through groove 42 on the coupler 4, allowing for efficient and accurate measurement of the coupler 4 height. In this embodiment, the connection structure between the fixing base 2 and the connecting hook 3 is as follows: Figure 11 .

[0060] Other aspects of the subway vehicle coupler height measuring device described in this utility model are found in the prior art and will not be repeated here.

[0061] 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 way. Therefore, any modifications, equivalent changes, and alterations 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 scope of the technical solution of the present utility model.

Claims

1. A metro vehicle coupler height measuring device, characterized by: The device includes a mounting base and a laser measuring instrument. A connecting hook is horizontally protruding on one side of the mounting base. The connecting hook can extend horizontally into a horizontal through groove that engages with the coupler. The mounting base has a mounting groove for detachably mounting the laser measuring instrument. The mounting groove is vertically through and the laser measuring instrument can slide along the mounting groove in the vertical direction. The opening of the mounting groove is horizontal and smaller than the size of the laser measuring instrument. The laser measuring instrument can measure the height of the coupler. The concave surface of the connecting hook is provided with a first positioning member and a second positioning member that are parallel to each other. The first positioning member is located close to the fixed seat. The connecting hook can be inserted into the horizontal through groove of the car coupler. The car coupler tongue is located between the first positioning member and the second positioning member. The first positioning member and the second positioning member can abut and fix with the car coupler tongue. Both the first positioning element and the second positioning element are elastically connected to the connecting hook.

2. The subway vehicle coupler height measuring device according to claim 1, characterized in that: The first positioning element includes at least two first positioning beads spaced apart in a vertical direction, and the second positioning element includes at least two second positioning beads spaced apart in a vertical direction.

3. The subway vehicle coupler height measuring device of claim 2, wherein: The concave surface of the connecting hook is an arc-shaped surface. Each first positioning bead corresponds to each second positioning bead. The horizontal distance between each first positioning bead and its corresponding second positioning bead is less than the diameter of the circle containing the arc-shaped surface.

4. The metro vehicle coupler height measuring device according to claim 3, characterized in that: The concave surface of the connecting hook is provided with a first positioning groove corresponding to each of the first positioning beads and a second positioning groove corresponding to each of the second positioning beads; each positioning groove can be used to embed the first positioning bead or the second positioning bead, and each of the first positioning grooves and each of the second positioning grooves is provided with an elastic element, one end of each elastic element is connected to the connecting hook, and the other end is connected to the first positioning bead or the second positioning bead.

5. The metro vehicle coupler height measuring device according to claim 4, characterized in that: The mounting base includes a first main body and a second main body arranged parallel and spaced apart. The first main body and the second main body are respectively provided with a first guide groove and a second guide groove on their adjacent sides. The first guide groove and the second guide groove are both vertically connected. The openings of the first guide groove and the second guide groove are both horizontal and opposite to each other. The laser measuring instrument can be inserted into the first guide groove and the second guide groove on both sides respectively. The space between the inner walls of the first guide groove and the second guide groove forms the mounting groove. The laser measuring instrument is detachably fixedly connected to the first main body and the second main body respectively. The end of the connecting hook near the first positioning bead is detachably and fixedly connected to the lower part of the first body and the second body, respectively; the distance between the side of the first body and the second body away from the connecting hook forms the groove of the mounting slot.

6. The subway vehicle coupler height measuring device of claim 5, wherein: The lower end of the first main body is provided with a first protruding plate that protrudes downwards, and the first protruding plate is parallel to the bottom surface of the first guide groove; the lower end of the second main body is provided with a second protruding plate that protrudes downwards, and the second protruding plate is parallel to the bottom surface of the second guide groove; the first protruding plate and the second protruding plate are both vertically arranged and parallel to each other; a connecting part is provided at one end of the connecting hook near the fixed seat, the connecting part is located between the first protruding plate and the second protruding plate, and the connecting part is detachably fixedly connected to the first protruding plate and the second protruding plate.

7. The metro vehicle coupler height measuring device according to claim 6, characterized in that: The connecting part is provided with a connecting groove that communicates with the mounting groove. The upper end of the connecting groove is connected to the mounting groove. The connecting groove is vertically continuous and allows the laser measuring instrument to slide through it in the vertical direction. The opening of the connecting groove is horizontally set and is located on the same side as the opening of the mounting groove. The opening of the connecting groove is located on the side away from the connecting hook.

8. The subway vehicle coupler height measuring device of claim 7, wherein: The connecting part includes two symmetrically arranged connecting blocks, both of which are located between the first convex plate and the second convex plate. The two connecting blocks are detachably fixed to the first convex plate and the second convex plate respectively, and their ends are fixed to the connecting hooks. The connecting groove is formed between the two connecting blocks.

9. The metro vehicle coupler height measuring device according to claim 8, characterized in that: Each of the connecting blocks includes a first connecting plate and a second connecting plate that are fixedly connected in an L-shape in sequence. One first connecting plate, one end of the connecting hook near the first positioning member, and another first connecting plate are connected in a C-shape in sequence. Two second connecting plates are located on the side of the two first connecting plates that are close to each other. The distance between the two second connecting plates forms the opening of the communicating groove. The two first connecting plates are detachably fixedly connected to the first protruding plate and the second protruding plate, respectively.

10. The subway vehicle coupler height measuring device according to claim 9, characterized in that: The first main body and the second main body are symmetrically arranged. The first main body includes a first plate, a second plate and a third plate that are fixedly connected in a C shape in sequence. The second main body includes a fourth plate, a fifth plate and a sixth plate that are fixedly connected in a C shape in sequence. The fixing base also includes a third main body, the two ends of which are fixedly connected to the third plate and the fourth plate respectively, and the third plate, the third main body, and the fourth plate are an integral connection structure; The spacing between the two second connecting plates is equal to the spacing between the first plate and the sixth plate.

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