Small electric tight-lock coupler connector

Abstract

The invention provides a small electric tight-lock coupler connector which comprises an upper coupler body, a lower coupler body, a coupler knuckle, an uncoupling rod, an electric push rod, a multifunctional mounting plate, a push rod support and a connecting rod. The device has two operation modes of electric automatic operation and manual operation. An electric push rod is installed in the lower coupler body to achieve automatic uncoupling and locking operation of the car coupler. During manual operation, the uncoupling rod is sleeved with the sleeve through the operation hole in the side face of the car coupler and pulled to drive the coupler knuckle to rotate in the sliding way, and uncoupling of the car coupler is achieved. A flange on the side face of the coupler knuckle prevents the coupler from loosening when the coupler is locked. The device is simple in structure, small in installation size, easy to manufacture and assemble, good in reliability and capable of being used for a special vehicle with limited installation space, the front and rear running modules are tightly connected, and the running safety of the vehicle is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of special vehicle equipment, and in particular relates to a small electric close-connected coupler connector. Background Art

[0002] In the field of special vehicles, the automatic coupler connection device used in traditional rolling stock is being considered to achieve a tight connection between the front and rear running modules. However, traditional rolling stock couplers not only have mechanical structures but also electrical and pneumatic connection interfaces. Their complex structure and bulk make them unsuitable for the space-constrained installation requirements of special vehicles. Given this situation, there is an urgent need to develop a connection device specifically for special vehicle running modules that can achieve a reliable connection within limited space and meet the urgent needs of special vehicles. Summary of the Invention

[0003] (1) Technical issues to be resolved

[0004] The present invention provides a small electric close-fitting coupler connector to solve the technical problem of how to achieve reliable connection in a limited space.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes a small electric close-fitting coupler connector, which includes an upper hook body, a lower hook body, a hook tongue, an unhooking rod, an electric push rod, a multifunctional mounting plate, a push rod bracket and a connecting rod; wherein,

[0007] The lower hook body is used to carry other parts of the coupler connector; the upper and lower hook bodies are symmetrical structures and are connected by bolts to form a complete coupler body; the semi-cylindrical slide wall inside the coupler body is provided with a slide groove to achieve free rotation of the coupler tongue;

[0008] The uncoupling lever is hidden in the hook body cavity of the lower hook body. The front end of the uncoupling lever is inserted into the center hole of the hook tongue and is fixed to the hook tongue by a pin. Rotating the uncoupling lever can drive the hook tongue to rotate in the semi-cylindrical slideway inside the coupler body. The uncoupling lever is connected to the lower hook body by a spring. Under the action of the spring, the uncoupling lever and the hook tongue maintain their initial position.

[0009] The upper and lower surfaces of the coupler tongue are provided with fan-shaped bosses. When the coupler tongue rotates in the semi-cylindrical slideway inside the coupler body, the bosses on the upper and lower surfaces are embedded in the U-shaped slideway groove of the slideway. The bosses are restricted by the slideway groove and prevent the coupler tongue from falling off the slideway during rotation.

[0010] A multifunctional mounting plate mounting slot is opened in the hook body cavity of the lower hook body, the multifunctional mounting plate is installed in the mounting slot of the lower hook body, and the tail of the electric push rod is installed on the multifunctional mounting plate 6; one end of the connecting rod is connected to the unhooking rod, and the other end is connected to the electric push rod.

[0011] Furthermore, a convex cone and a concave cone are provided at the front end of the coupler body to provide a guiding function during the coupling process of the two couplers.

[0012] Furthermore, the upper and lower surfaces of the convex cone are both inclined surfaces.

[0013] Furthermore, an operating hole is processed on the side of the coupler body. When manually unhooking, a sleeve is used to rotate the unhooking rod through the operating hole to unhook the coupler.

[0014] Furthermore, the upper and lower surfaces of the hook tongue are provided with 150° fan-shaped bosses.

[0015] Furthermore, a flange is provided on the semi-cylindrical surface of the coupler tongue. When the two couplers are locked, the flange on the coupler tongue of each coupler and the side surface of the semi-cylindrical slide in the coupler body of the other coupler are squeezed against each other to achieve a self-locking function.

[0016] Furthermore, the length of the multifunctional mounting plate mounting slot is greater than the multifunctional mounting plate.

[0017] Furthermore, multiple groups of bolt holes are provided in the mounting groove of the multifunctional mounting plate, and multiple groups of bolt holes are provided in the middle of the multifunctional mounting plate. The multifunctional mounting plate is connected to the lower hook body through bolts. The multifunctional mounting plate can slide in the mounting groove of the multifunctional mounting plate. Different sliding distances correspond to different bolt holes, which are suitable for electric push rods of different sizes.

[0018] Furthermore, the push rod bracket is L-shaped and fixed on the lower hook body to prevent the electric push rod from swinging.

[0019] Furthermore, when the coupler connector is in the ready-to-hook state, the angle between the unhooking rod and the longitudinal section is 30°.

[0020] (3) Beneficial effects

[0021] The present invention proposes a small electric close-fitting coupler connector, comprising an upper hook body, a lower hook body, a hook tongue, an uncoupling rod, an electric push rod, a multifunctional mounting plate, a push rod bracket and a connecting rod. The device has two operating modes: electric automatic operation and manual operation. An electric push rod is installed in the lower hook body to realize automatic uncoupling and locking operations of the coupler. During manual operation, a sleeve is put on the uncoupling rod through the operating hole on the side of the coupler and pulled to drive the hook tongue to rotate in the slide to realize uncoupling of the coupler. The flange on the side of the hook tongue prevents the coupler from loosening when the coupler is locked. The present invention has a simple structure, small installation size, simple manufacturing and assembly, and good reliability. It can be used for special vehicles with limited installation space to tightly connect the front and rear running modules to ensure safe vehicle operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the overall structure of a small electric close-fitting coupler connector according to the present invention;

[0023] Figure 2 This is a front view of the overall structure of the small electric close-fitting coupler connector of the present invention;

[0024] Figure 3 This is an assembly diagram of the lower hook body of the present invention;

[0025] Figure 4 It is a top view of the lower hook body of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the unhooking rod in the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the hook tongue in the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the multifunctional mounting plate of the present invention;

[0029] Figure 8 This is a three-dimensional structural diagram of the push rod bracket in the present invention;

[0030] Figure 9 This is a diagram of the small-sized close-fitting coupler connector of the present invention in a state ready to be hooked;

[0031] Figure 10 This is a diagram of the small-sized close-fitting coupler connector of the present invention in a locked state;

[0032] Figure 11 This is a diagram of the small-sized close-fitting coupler connector of the present invention in the unhooked state.

[0033] Among them: 1-upper hook body; 2-lower hook body; 3-hook tongue; 4-unhooking rod; 5-electric push rod; 6-multi-function mounting plate; 7-push rod bracket; 8-connecting rod; 9-slide groove; 10-multi-function mounting plate mounting slot; 11-boss; 12-flange. DETAILED DESCRIPTION

[0034] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below with reference to the accompanying drawings and examples.

[0035] This embodiment proposes a small electric close-fitting coupler connector, the overall structure of which is as follows: Figure 1 and 2 As shown, it mainly includes an upper hook body 1, a lower hook body 2, a hook tongue 3, an unhooking rod 4, an electric push rod 5, a multi-functional mounting plate 6, a push rod bracket 7 and a connecting rod 8.

[0036] The lower hook body 2 is used to carry other parts of the coupler connector, such as Figure 3As shown. The upper hook body 1 and the lower hook body 2 are symmetrical structures and are connected by bolts to form a complete coupler body. The semi-cylindrical slide wall inside the coupler body is provided with a slide groove 9, as shown. Figure 4 As shown, it is used to achieve free rotation of the hook tongue 3.

[0037] The front end of the coupler body is equipped with a convex and concave cone to provide guidance when the two couplers are connected. The upper and lower surfaces of the convex cone are both inclined, which can improve the convenience of coupler connection.

[0038] like Figure 5 As shown, the uncoupling lever 4 is concealed within the hook cavity of the lower hook body 2, saving coupler installation space. The front end of the uncoupling lever 4 is inserted into the center hole of the coupler tongue 3 and is fixed to the coupler tongue 3 via a pin. Rotating the uncoupling lever 4 drives the coupler tongue 3 within a semi-cylindrical slideway within the coupler body. The uncoupling lever 4 is connected to the lower hook body 2 by a spring, which maintains the uncoupling lever 4 and coupler tongue 3 in their initial, ready-to-engage position. An operating hole is machined into the side of the coupler body. For manual uncoupling, a sleeve is used to rotate the uncoupling lever 4 through the operating hole.

[0039] like Figure 6 As shown, the upper and lower surfaces of the coupler tongue 3 are provided with 150° sector-shaped projections 11. As the coupler tongue 3 rotates within the semi-cylindrical slideway within the coupler body, the projections 11 on the upper and lower surfaces engage with the U-shaped slideway groove 9, restraining the groove 9 and preventing the coupler tongue 3 from disengaging from the slideway during rotation. A flange 12 is provided on the semi-cylindrical surface of the coupler tongue 3. When the two couplers are locked, the flange 12 on each coupler's coupler tongue 3 presses against the side surface of the semi-cylindrical slideway within the coupler body of the other coupler, achieving a self-locking function and effectively preventing the two couplers from loosening in the locked state.

[0040] The hook body cavity of the lower hook body 2 is provided with a multifunctional mounting plate mounting groove 10 for placing the multifunctional mounting plate 6. The length of the multifunctional mounting plate mounting groove 10 is greater than that of the multifunctional mounting plate 6. Three sets of bolt holes are provided in the multifunctional mounting plate mounting groove 10. Figure 7 As shown, two sets of bolt holes are set in the middle of the multifunctional mounting plate 6. The multifunctional mounting plate 6 is placed in the mounting groove 10 of the lower hook body 2 and is connected to the lower hook body 2 by bolts. The tail of the electric push rod 5 is installed on the multifunctional mounting plate 6. The multifunctional mounting plate 6 can slide in the mounting groove 10 of the multifunctional mounting plate. Different sliding distances correspond to different bolt holes, which can be easily adapted to electric push rods 5 of different sizes. The push rod bracket 7 is L-shaped, and the structure is as follows Figure 8 As shown, it is fixed on the lower hook body 2 to prevent the electric push rod 5 from swinging significantly. One end of the connecting rod 8 is connected to the unhooking rod 4, and the other end is connected to the electric push rod 5.

[0041] The compact, close-fitting coupler has two kinematic mechanisms, enabling automatic and manual uncoupling respectively. For electrically driven automatic uncoupling, the lower hook body 2, uncoupling lever 4, electric push rod 5, and connecting rod 8 form a crank-operated guide mechanism. For manual uncoupling, the lower hook body 2, uncoupling lever 4, electric push rod 5, and connecting rod 8 form a four-bar linkage.

[0042] The small close-fitting coupler connector of the present invention has three working states, namely a ready-to-hook state, a locked state and an unhooked state.

[0043] The ready-to-hang state of the coupler connector is as follows: Figure 9 As shown, the uncoupling lever 4 is now at an angle of 30° with the longitudinal section, indicating it is in the ready-to-engage position. The convex and concave cones on the coupler body serve as guides, with the upper and lower surfaces of the convex cone designed as inclined surfaces. There are two ways to couple the coupler: Automatic coupling, where the convex cone of the moving coupler presses against the flat surface of the coupler tongue 3, driving the tongue 3 counterclockwise. Semi-automatic coupling, on the other hand, involves first activating the electric push rod 5, pushing the uncoupling lever 4, causing the tongue 3 to rotate counterclockwise 30° before mechanical coupling and locking.

[0044] The locking status of the coupler connector is as follows: Figure 10 As shown, when the two couplers are connected, the male cone inserts into the corresponding female cone. When the moving male cone contacts the flat surface of the coupler tongue 3, it causes the coupler tongue 3 to rotate counterclockwise until it reaches 30°. Once the connecting surfaces of the two couplers come into contact, the connection is complete. Under the action of the spring connecting the lower hook body 2 and the uncoupling lever 4, the coupler tongue 3 rotates 30° clockwise to return to its original position, effectively locking the coupler. Furthermore, the flange 12 on the cylindrical surface of the coupler tongue 3 presses against the slideway surface of the other coupler, preventing the couplers from loosening when locked.

[0045] The uncoupling status of the coupler is as follows: Figure 11 As shown, uncoupling includes two operating modes: automatic and manual. In automatic uncoupling mode, the electric push rod 5 pushes the uncoupling lever 4 forward, causing the coupler tongue 3 to rotate counterclockwise 30° to the uncoupling position and hold it there, thereby separating the two couplers. In manual uncoupling mode, a sleeve is inserted into the uncoupling lever 4 through the operating hole on the side of the coupler. Pulling the uncoupling lever 4 also causes the coupler tongue 3 to rotate counterclockwise 30° to the uncoupling position.

[0046] In summary, the compact, close-fitting coupler connector of the present invention features a simple structure, compact size, and ease of manufacture and assembly. It offers both automatic and manual operation modes. Compared to conventional rolling stock coupler devices, it is smaller, lighter, and more compact, making it suitable for use on special vehicles with limited installation space. Furthermore, it offers excellent reliability, capable of withstanding certain longitudinal tensile and compressive loads, as well as transverse shear loads, ensuring a tight connection between vehicle running modules and safe vehicle operation.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A small electric close-fitting coupler connector, characterized in that: The small electric close-fitting coupler connector comprises an upper hook body (1), a lower hook body (2), a hook tongue (3), an unhooking rod (4), an electric push rod (5), a multifunctional mounting plate (6), a push rod bracket (7) and a connecting rod (8); wherein, The lower hook body (2) is used to carry other parts of the coupler connector; the upper hook body (1) and the lower hook body (2) are symmetrical structures and are connected by bolts to form a complete coupler body; the semi-cylindrical slide wall inside the coupler body is provided with a slide groove (9) for realizing free rotation of the coupler tongue (3); The unhooking rod (4) is hidden in the hook body cavity of the lower hook body (2), the front end of the unhooking rod (4) is inserted into the central hole of the hook tongue (3), and is fixedly connected to the hook tongue (3) through a pin, and the unhooking rod (4) can be rotated to drive the hook tongue (3) to rotate in the semi-cylindrical slideway in the coupler body; the unhooking rod (4) is connected to the lower hook body (2) through a spring, and under the action of the spring, the unhooking rod (4) and the hook tongue (3) maintain their initial positions; The upper and lower surfaces of the hook tongue (3) are provided with fan-shaped bosses (11). When the hook tongue (3) rotates in the semi-cylindrical slideway in the coupler body, the bosses (11) on the upper and lower surfaces are embedded in the U-shaped slideway groove (9) of the slideway and are restricted by the slideway groove (9), thereby preventing the hook tongue (3) from escaping from the slideway during the rotation process. A multifunctional mounting plate mounting groove (10) is provided in the hook body cavity of the lower hook body (2); the multifunctional mounting plate (6) is mounted in the mounting groove (10) of the lower hook body 2; and the tail of the electric push rod (5) is mounted on the multifunctional mounting plate (6); one end of the connecting rod (8) is connected to the unhooking rod (4), and the other end is connected to the electric push rod (5).

2. The small electric close-fitting coupler connector according to claim 1, characterized in that: The front end of the coupler body is provided with a convex cone and a concave cone for providing a guiding function during the coupling process of the two couplers.

3. The small electric close-fitting coupler connector according to claim 2, characterized in that: The upper and lower surfaces of the convex cone are both inclined surfaces.

4. The small electric close-fitting coupler connector according to claim 1, characterized in that: An operating hole is machined on the side of the coupler body. When manually unhooking, a sleeve is used to rotate an unhooking rod (4) through the operating hole to unhook.

5. The small electric close-fitting coupler connector according to claim 1, characterized in that: The upper and lower surfaces of the hook tongue (3) are provided with a 150° fan-shaped boss (11).

6. The small electric close-fitting coupler connector according to claim 1, characterized in that: A flange (12) is provided on the semi-cylindrical surface of the coupler tongue (3). When the two couplers are locked, the flange (12) on the coupler tongue (3) of each coupler and the side surface of the semi-cylindrical slideway in the coupler body of the other coupler are pressed against each other to achieve a self-locking function.

7. The small electric close-fitting coupler connector according to claim 1, characterized in that: The length of the multifunctional mounting plate mounting groove (10) is greater than that of the multifunctional mounting plate (6).

8. The small electric close-fitting coupler connector according to claim 1, characterized in that: The multifunctional mounting plate mounting groove (10) is provided with a plurality of groups of bolt holes, and the middle portion of the multifunctional mounting plate (6) is provided with a plurality of groups of bolt holes. The multifunctional mounting plate (6) is connected to the lower hook body (2) via bolts. The multifunctional mounting plate (6) can slide within the multifunctional mounting plate mounting groove (10), and different sliding distances correspond to different bolt holes, thereby adapting to electric push rods (5) of different sizes.

9. The small electric close-fitting coupler connector according to claim 1, characterized in that: The push rod bracket (7) is L-shaped and is fixed on the lower hook body (2) to prevent the electric push rod (5) from swinging.

10. The small electric close-fitting coupler connector according to claim 1, characterized in that: When the coupler connector is in a waiting state, the angle between the uncoupling rod (4) and the longitudinal section is 30 degrees.

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