Self-locking quick opening and closing mechanism for railway wagon floor

Abstract

The utility model relates to railway freight car accessory technical field, concretely relates to a railway freight car bottom plate is with quick opening and closing mechanism of self -lock, including frame, bottom plate and opening and closing subassembly, the bottom of frame is seted up and placed the cavity, the inside slide coupling of placed cavity has the bottom plate, the top of bottom plate is provided with opening and closing subassembly, opening and closing subassembly include the lock slot of setting in the top of bottom plate, four the inside bottom wall fixed coupling of lock slot has the electromagnet, the bottom of frame is seted up and four storage grooves, the inner top wall fixed coupling of storage groove has the fixed plate, the bottom fixed connection of fixed plate has the return spring, the bottom fixed connection of return spring has the iron lock block, the surface of iron lock block and the top of electromagnet are adsorbed, the surface fixed connection of frame has control box, the inside setting of frame has the mounting groove. The utility model, through setting opening and closing subassembly and drive structure, the whole satisfies railway freight car efficient, safe loading and unloading and transportation demand.

Description

Technical Field

[0001] This utility model relates to the technical field of railway freight car parts, and in particular to a self-locking quick opening and closing mechanism for the bottom plate of a railway freight car. Background Technology

[0002] In my country's comprehensive transportation system, railway freight, with its unique advantages of "large capacity, long distance, low energy consumption, and high safety," has become the core carrier for the cross-regional flow of bulk commodities. Its strategic position runs through the entire chain of national economic development. As the core mode of bulk commodity transportation in my country, railway freight undertakes the long-distance transportation of materials such as coal, ore, and grain. Its transportation efficiency and safety directly affect the stable operation of the industrial and supply chains. The freight car floor, as a key component for cargo bearing and loading / unloading, has an opening and closing mechanism whose performance is a core factor determining loading / unloading efficiency, transportation safety, and operational economy.

[0003] There is a self-locking quick-opening and closing mechanism for railway freight car flooring. The self-locking structure is prone to loosening due to vibration, which may cause the flooring to open unexpectedly during transportation. Uneven transmission of driving power may cause the flooring to jam or shift during opening and closing, affecting loading and unloading efficiency. The lack of a shock-absorbing structure may cause violent collisions when the flooring moves and closes, which may aggravate component wear and shorten its service life. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of poor self-locking reliability and uneven drive transmission in existing devices, and to propose a self-locking quick opening and closing mechanism for railway freight car floor plates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a self-locking quick opening and closing mechanism for a railway freight car floor, comprising a frame, a floor, and an opening and closing assembly. The frame has a placement cavity at its bottom, and the floor is slidably connected inside the placement cavity. The floor is provided with an opening and closing assembly at its top. The opening and closing assembly includes locking grooves on the top of the floor, and electromagnets are fixedly connected to the inner bottom walls of the four locking grooves. The frame has four storage slots at its bottom, and a fixing plate is fixedly connected to the inner top wall of each storage slot. A return spring is fixedly connected to the bottom of the fixing plate, and an iron lock block is fixedly connected to the bottom of the return spring. The surface of the iron lock block is attracted to the top of the electromagnet. A control box is fixedly connected to the surface of the frame. The frame has an installation slot inside, and a drive structure is fixedly connected to the inner wall of the installation slot.

[0006] Furthermore, the drive structure includes a motor fixedly connected to the inner wall of the mounting slot, and the output end of the motor is fixedly connected to a screw A.

[0007] Furthermore, one end of the A screw is fixedly connected to an A toothed wheel, and a transmission belt is meshed with the surface of the A toothed wheel.

[0008] Furthermore, the inner wall of the transmission belt is provided with toothed grooves, and the other end of the inner wall of the transmission belt is engaged with a B-tooth block wheel.

[0009] Furthermore, one end of the B-tooth block wheel is fixedly connected to a B-screw, and a slide rail is provided on the inner side wall of the frame, the slide rail being connected to the mounting groove.

[0010] Furthermore, screw cylinders are fixedly connected to one end of the left and right sides of the base plate, and the inner walls of the two screw cylinders are threadedly connected to the surfaces of screw A and screw B.

[0011] Furthermore, a shock-absorbing pad is fixedly connected to the inner top wall of the frame, and the surface of the shock-absorbing pad abuts against the top of the bottom plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by setting up an opening and closing component and a driving structure, the electromagnet of the opening and closing component attracts the iron lock block after being energized, causing the iron lock block to lock into the lock groove, realizing a stable self-locking between the base plate and the frame, and avoiding the self-locking loosening caused by transportation vibration. When the power is cut off, the reset spring pushes the iron lock block back into the storage groove, quickly releasing the self-locking. The operation is convenient. The control box can accurately control the on and off of the electromagnet, improving the flexibility of self-locking control. The motor of the driving structure drives the A screw to rotate. The A toothed block wheel drives the B toothed block wheel and the B screw to rotate synchronously through the transmission belt. The tooth groove ensures that the transmission does not slip, realizing balanced force from the A and B screws. The screw barrel and the screw thread fit together, converting the rotational power into the linear motion of the base plate. With the guide of the slide rail, it avoids jamming and deviation when the base plate is opened and closed, improving loading and unloading efficiency. The shock-absorbing pad buffers the collision between the base plate and the frame, reducing vibration and component wear, and extending the service life of the mechanism. Overall, it meets the needs of efficient and safe loading, unloading and transportation of railway freight cars. Attached Figure Description

[0013] Figure 1 A three-dimensional front view of a self-locking quick-opening and closing mechanism for railway freight car floor is provided for this utility model; Figure 2 This utility model provides a schematic diagram of the unfolded structure of a self-locking quick-opening and closing mechanism for the bottom plate of a railway freight car; Figure 3 This utility model provides a structural schematic diagram of the opening and closing components in a self-locking quick opening and closing mechanism for railway freight car flooring; Figure 4 This utility model provides a schematic diagram of the separation structure of the opening and closing components in a self-locking quick opening and closing mechanism for railway freight car floor. Figure 5 This utility model provides a schematic diagram of the separation structure of the opening and closing components in a self-locking quick opening and closing mechanism for railway freight car flooring.

[0014] Legend: 1. Frame; 2. Base plate; 3. Opening and closing assembly; 31. Lock slot; 32. Electromagnet; 33. Storage slot; 34. Fixing plate; 35. Return spring; 36. Iron lock block; 37. Control box; 4. Mounting slot; 5. Drive structure; 51. Motor; 52. A screw; 53. A gear block wheel; 54. Transmission belt; 55. Gear groove; 56. B gear block wheel; 57. B screw; 58. Slide rail; 59. Screw barrel; 6. Shock-absorbing pad. Detailed Implementation

[0015] Please see Figure 1-5 This utility model provides a technical solution: a self-locking quick opening and closing mechanism for the bottom plate of a railway freight car, including a frame 1, a bottom plate 2 and an opening and closing assembly 3. The bottom of the frame 1 is provided with a placement cavity, and the bottom plate 2 is slidably connected inside the placement cavity. The opening and closing assembly 3 is provided on the top of the bottom plate 2.

[0016] The following section will explain the specific settings and functions of its opening / closing component 3 and driving structure 5.

[0017] In this embodiment: the opening and closing component 3 includes a locking groove 31 opened on the top of the base plate 2, an electromagnet 32 ​​is fixedly connected to the inner bottom wall of the four locking grooves 31, four storage grooves 33 are opened at the bottom of the frame 1, a fixing plate 34 is fixedly connected to the inner top wall of the storage groove 33, a return spring 35 is fixedly connected to the bottom of the fixing plate 34, an iron lock block 36 is fixedly connected to the bottom of the return spring 35, the surface of the iron lock block 36 is attracted to the top of the electromagnet 32, a control box 37 is fixedly connected to the surface of the frame 1, an installation groove 4 is opened inside the frame 1, and a drive structure 5 is fixedly connected to the inner wall of the installation groove 4.

[0018] The effects achieved by the above components are as follows: by setting the locking groove 31, a locking space is provided for the iron lock block 36; after the electromagnet 32 ​​is energized, it attracts the iron lock block 36, realizing the self-locking fixation of the base plate 2 and the frame 1; when the power is off, the return spring 35 pushes the iron lock block 36 out of the locking groove 31, releasing the self-locking and facilitating the movement of the base plate 2; the fixing plate 34 fixes the position of the return spring 35 to ensure the stability of its elastic force; the control box 37 regulates the on and off of the electromagnet 32 ​​to realize convenient control of self-locking and unlocking; the mounting groove 4 provides installation space for the drive structure 5, ensuring the orderly layout of the drive components.

[0019] Please see Figure 5 Specifically, the drive structure 5 includes a motor 51 fixedly connected to the inner wall of the mounting groove 4, and the output end of the motor 51 is fixedly connected to a screw A 52.

[0020] The effect achieved by the above components is as follows: by setting the motor 51 to provide a power source, the screw A 52 is driven to rotate, and the rotational power of the motor 51 is converted into the transmission power of the screw, which provides driving force for the movement of the base plate 2, ensuring that the base plate 2 can open and close stably.

[0021] Please see Figure 5 Specifically, one end of screw A 52 is fixedly connected to a toothed wheel A 53, and a transmission belt 54 is meshed with the surface of toothed wheel A 53.

[0022] The effect achieved by the above components is as follows: by setting the A-tooth block wheel 53 to rotate synchronously with the A-screw 52, ​​the meshing relationship drives the transmission belt 54 to move, realizing the transmission of power from the A-screw 52 to other components, and ensuring that all components of the drive structure 5 operate in conjunction.

[0023] Please see Figure 5 Specifically, the inner wall of the transmission belt 54 is provided with toothed grooves 55, and the other end of the inner wall of the transmission belt 54 is engaged with a B-tooth block wheel 56.

[0024] The effect achieved by the above components is as follows: by setting the tooth groove 55 to enhance the meshing tightness between the transmission belt 54 and the toothed block wheel, slippage is avoided during transmission, and power is stably transmitted to the B toothed block wheel 56, driving the B toothed block wheel 56 to rotate synchronously, thereby realizing the coordinated drive of the A and B screws.

[0025] Please see Figure 4-5 Specifically, one end of the B-tooth block wheel 56 is fixedly connected to the B-screw 57, and the inner side wall of the frame 1 is provided with a slide rail 58, which is connected to the mounting groove 4.

[0026] The effects achieved by the above components are as follows: By setting the B-tooth block wheel 56 to drive the B screw 57 to rotate synchronously, the A and B screws exert force at the same time, ensuring that the force on both sides of the base plate 2 is balanced; the slide rail 58 provides guidance for the sliding of the base plate 2, preventing the base plate 2 from deviating when moving, and ensuring a smooth opening and closing process; the slide rail 58 is connected to the mounting groove 4, which facilitates the connection between the screw barrel 59 and the screw, ensuring that the power can be effectively transmitted to the base plate 2.

[0027] Please see Figure 3-4 Specifically, screw cylinders 59 are fixedly connected to one end of the left and right sides of the base plate 2, and the inner walls of the two screw cylinders 59 are threadedly connected to the surfaces of screw A 52 and screw B 57.

[0028] The effect achieved by the above components is as follows: by setting the screw cylinder 59 to be fixed on both sides of the base plate 2 as the connection medium between the screw and the base plate 2, the rotational motion of the screw is converted into the linear motion of the base plate 2, thereby realizing the opening and closing of the base plate 2; the screw cylinder 59 is threadedly connected to the screw, ensuring that the screw cylinder 59 and the base plate 2 can be stably driven to move when the screw rotates, thereby realizing the precise opening and closing of the base plate 2.

[0029] Please see Figure 3 Specifically, a shock-absorbing pad 6 is fixedly connected to the inner top wall of the frame 1, and the surface of the shock-absorbing pad 6 abuts against the top of the base plate 2.

[0030] The effect achieved by the above components is as follows: by setting the shock-absorbing pad 6 to buffer the collision between the base plate 2 and the frame 1, the vibration and noise of the base plate 2 during movement are reduced, the components are protected and the operational stability is improved.

[0031] Working principle: By setting up the opening and closing component 3 and the driving structure 5, the electromagnet 32 ​​of the opening and closing component 3 is energized and attracts the iron lock block 36, causing the iron lock block 36 to lock into the locking groove 31, realizing a stable self-locking between the base plate 2 and the frame 1, avoiding the self-locking loosening caused by transportation vibration. When the power is off, the reset spring 35 pushes the iron lock block 36 back into the storage groove 33, quickly releasing the self-locking. The operation is convenient. The control box 37 can accurately control the on and off of the electromagnet 32, improving the flexibility of self-locking control. The motor 51 of the driving structure 5 drives the A screw 52 to rotate. The toothed wheel 53 drives the B toothed wheel 56 and the B screw 57 to rotate synchronously through the transmission belt 54. The tooth groove 55 ensures that the transmission does not slip, and realizes the balanced force of the A and B screws. The screw barrel 59 is threaded with the screw, converting the rotational power into the linear motion of the base plate 2. With the guidance of the slide rail 58, it avoids jamming and deviation when the base plate 2 is opened and closed, and improves loading and unloading efficiency. The shock-absorbing pad 6 buffers the collision between the base plate 2 and the frame 1, reduces vibration and component wear, and extends the service life of the mechanism. Overall, it meets the needs of efficient and safe loading, unloading and transportation of railway freight cars.

[0032] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A self-locking quick-opening and closing mechanism for the bottom plate of a railway freight car, comprising a frame (1), a bottom plate (2), and an opening and closing assembly (3), characterized in that: The bottom of the frame (1) is provided with a placement cavity, and a base plate (2) is slidably connected inside the placement cavity. An opening and closing assembly (3) is provided on the top of the base plate (2). The opening and closing assembly (3) includes a locking groove (31) opened on the top of the base plate (2). Electromagnets (32) are fixedly connected to the inner bottom walls of the four locking grooves (31). Four storage slots (33) are opened at the bottom of the frame (1). A fixing plate (34) is fixedly connected to the inner top wall of the storage slot (33). A return spring (35) is fixedly connected to the bottom of the fixing plate (34). An iron lock block (36) is fixedly connected to the bottom of the return spring (35). The surface of the iron lock block (36) is attracted to the top of the electromagnet (32). A control box (37) is fixedly connected to the surface of the frame (1). An installation slot (4) is opened inside the frame (1). A drive structure (5) is fixedly connected to the inner wall of the installation slot (4).

2. The self-locking quick-opening and closing mechanism for railway freight car flooring according to claim 1, characterized in that: The drive structure (5) includes a motor (51) fixedly connected to the inner wall of the mounting groove (4), and the output end of the motor (51) is fixedly connected to an A screw (52).

3. The self-locking quick-opening and closing mechanism for railway freight car flooring according to claim 2, characterized in that: One end of the A screw (52) is fixedly connected to the A toothed block wheel (53), and the surface of the A toothed block wheel (53) is meshed with a transmission belt (54).

4. A self-locking quick-opening and closing mechanism for railway freight car flooring according to claim 3, characterized in that: The inner wall of the transmission belt (54) is provided with toothed grooves (55), and the other end of the inner wall of the transmission belt (54) is engaged with a B-tooth block wheel (56).

5. A self-locking quick-opening and closing mechanism for railway freight car flooring according to claim 4, characterized in that: One end of the B-tooth block wheel (56) is fixedly connected to the B screw (57), and the inner side wall of the frame (1) is provided with a slide rail (58), which is connected to the mounting groove (4).

6. The self-locking quick-opening and closing mechanism for railway freight car flooring according to claim 1, characterized in that: The bottom plate (2) has screw cylinders (59) fixedly connected to one end on the left and right sides. The inner walls of the two screw cylinders (59) are threadedly connected to the surfaces of screw A (52) and screw B (57).

7. The self-locking quick-opening and closing mechanism for railway freight car flooring according to claim 1, characterized in that: The inner top wall of the frame (1) is fixedly connected to a shock-absorbing pad (6), and the surface of the shock-absorbing pad (6) abuts against the top of the base plate (2).

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