Opening and closing operation device for escape door

Abstract

The utility model provides an escape door opening and closing operation device which comprises a shell, a corner gear, a rocking handle and a connecting rod. The corner gear is arranged in the shell and comprises a first gear body and a second gear body, the central axes of the first gear body and the second gear body are perpendicular, the first gear body is connected with an input shaft penetrating through the wall of the shell, the second gear body is connected with an output shaft penetrating through the wall of the shell, and force input by the input shaft is changed by 90 degrees and then output from the output shaft. The rocking handle is connected with the first gear through the input shaft. One end of the connecting rod is connected with the second gear through an output shaft, and the other end is provided with a groove matched with a rotating shaft switch on the reducer assembly. According to the utility model, the burden of operators can be reduced, the operation stability is improved, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban rail transit vehicle maintenance, in particular to an escape door switch operating device. Background Art

[0002] Subway trains are usually equipped with emergency evacuation doors, also known as escape doors, located in the center of the front of the cockpit. Figure 1 As shown in Figure 1, when a subway or urban rail train encounters an emergency such as fire or failure, the escape door can provide an emergency passage directly to the ground, ensuring that passengers can evacuate the car quickly and safely. Figure 2 As shown, it mainly includes: a door frame assembly connecting the vehicle body and the escape door, a positioning brake assembly, a main ramp and a secondary ramp that unfold into a slope pedal with a handrail to connect the vehicle end to the track, a lock assembly that keeps the lock tongue in the lock plate when the escape door is closed to prevent the escape door from opening accidentally, a brake sling assembly and a short sling restraint assembly that maintain the position of the ramp after the escape door is unfolded and assists in closing the escape door, a chain that passes through the side hole of the escape door to support the escape door, and a control system for the deployment of the ramp and the passage through the curve. The brake assembly that closes the door with a handle, the tread assembly that covers the gap between the door frame assembly and the main ramp, the handrail assembly and long and short slings that provide protection and support for passengers when escaping, the fixed small ramp assembly that covers the gap between the driver's cab floor and the tread to prevent passengers from getting into accidents when escaping, the emergency evacuation door panel that serves as an aesthetic and soundproofing function, the emergency evacuation door decorative panel that serves as an aesthetic function, the installation box assembly that connects the door frame, serves as a transition between the lower part of the door frame and the vehicle body, and also serves as a mounting component for the main hinge of the escape door and plays a load-bearing role. Among them, such as Figure 3 As shown, the brake assembly mainly transmits force through the reducer assembly and the brake gear to control the opening and closing of the escape door, and the gear transmission part is located in the cab roof.

[0003] When opening, closing, or inspecting an escape door, it is usually necessary to first push the lock handle to the unlocked position to open the escape door. A switch operating tool similar to a crank is then required, connected to a rotating shaft switch (typically a circular shaft with a long, rectangular protrusion on the outer wall) on the reducer assembly in the gear transmission mechanism, such as the recovery handle described in Chinese invention CN109987108A. Turning the crank slowly lowers or retracts the escape door. However, because the gear transmission mechanism is located within the top plate, the crank needs to be held high with both hands and maintained at the same height. Lowering the escape door requires turning the crank clockwise for approximately six minutes, while retracting the escape door requires turning the crank counterclockwise for approximately ten minutes due to the door's own weight before the door is retracted to a suitable locking position. This long period of holding the crank high with both hands is time-consuming and labor-intensive, significantly reducing maintenance efficiency and increasing fatigue for maintenance personnel. There is also the risk of injury from the crank falling. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes an escape door switch operating device, which can reduce the burden on operators, improve operational stability, and improve operational efficiency.

[0005] The utility model provides an escape door switch operating device, comprising:

[0006] case;

[0007] The angle gear is disposed in the housing and includes a first gear and a second gear disposed perpendicularly to a central axis and meshing with each other. The first gear is connected to an input shaft passing through the housing wall, and the second gear is connected to an output shaft passing through the housing wall. The force input by the input shaft is changed by 90 degrees and then outputted from the output shaft.

[0008] a crank handle connected to the first gear via an input shaft;

[0009] The connecting rod has one end connected to the second gear through the output shaft, and the other end is provided with a groove matching the shaft switch on the reducer assembly.

[0010] In one embodiment, the housing is a hexahedron, the input shaft and the output shaft respectively pass through two adjacent side walls of the housing, and the crank handle and the connecting rod are respectively located on two adjacent side surfaces of the housing.

[0011] In one embodiment, a handle is fixedly provided on a side wall of the housing adjacent to the side wall through which the input shaft and the output shaft pass.

[0012] In one embodiment, the grip includes a support and a handle, one side of the support is fixed to the side wall of the shell by bolts, and the other side is fixedly connected to two straight rods, and the handle is fixed between the two straight rods and arranged parallel to the support.

[0013] In one embodiment, the handle further includes a U-shaped bracket fixedly connecting the two straight rods.

[0014] In one embodiment, the connecting rod includes a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected to the output shaft through a bushing, and the other end is connected to one end of the second connecting rod through a universal joint, and the other end of the second connecting rod is provided with a groove that matches the shaft switch on the reducer assembly.

[0015] In one embodiment, a butterfly bolt is provided at one end of the second connecting rod where the groove is formed, and the butterfly bolt passes through the outer wall of the second connecting rod and extends into the groove.

[0016] In one embodiment, the crank is bent, and one end is fixedly connected to the input shaft via a shaft sleeve.

[0017] Compared with the prior art, the escape door switch operating device of the present invention has the following beneficial effects:

[0018] 1) The escape door opening and closing operation device can make the operator hold the handle with one hand and rotate the handle with the other hand, without the need to raise both hands to rotate the entire operation device, so as to easily open and close the escape door, reduce the burden of the operator, and improve the operation efficiency.

[0019] 2) The design of the U-shaped support in the escape door opening and closing operation device provides a support space for the operator's arm, so as to further improve the stability of the handheld tool.

[0020] 3) The universal joint in the escape door opening and closing operation device can make the first connecting rod and the second connecting rod have a certain angle and displacement error, compensate for the deviation between the shafts, increase the operation flexibility, and make the first connecting rod and the second connecting rod be folded by 180° through the universal joint, reduce the size of the tool storage, and facilitate storage and carrying.

[0021] 4) The butterfly bolt in the escape door opening and closing operation device can resist the rotation of the shaft switch on the speed reducer assembly during operation, and prevent idling. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the position of the escape door;

[0023] Figure 2 is a schematic diagram of the structure of the escape door;

[0024] Figure 3 is a schematic diagram of the structure of the brake assembly;

[0025] Figure 4 is a schematic diagram of the structure of the escape door opening and closing operation device of one embodiment of the present application;

[0026] Figure 5 is a schematic diagram of the structure of the outside of the shell in the escape door opening and closing operation device of one embodiment of the present application;

[0027] Figure 6 is a schematic diagram of the structure of the inside of the shell in the escape door opening and closing operation device of one embodiment of the present application;

[0028] Figure 7 is a schematic diagram of the structure of the handle in the escape door opening and closing operation device of one embodiment of the present application;

[0029] Figure 8 is a schematic diagram of the structure of the connecting rod in the escape door opening and closing operation device of one embodiment of the present application;

[0030] Figure 9 is a schematic diagram of the structure of the handle in the escape door opening and closing operation device of one embodiment of the present application;

[0031] Figure 10 It is the use operation schematic view of the escape door switch operating device of an embodiment of the utility model.

[0032] Reference signs

[0033] 1, shell, 2, corner gear, 21, first gear, 22, second gear, 23, input shaft, 24, output shaft, 3, crank handle, 31, shaft sleeve, 4, connecting rod, 41, first connecting rod, 42, second connecting rod, 43, universal coupling, 44, butterfly bolt, 5, handle, 51, support, 52, handle, 53, U-shaped support, A, escape door, B, brake assembly, C, brake gear, D, speed reducer assembly. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model will be further described in detail below with the help of the drawings and specific embodiments. It needs to be explained here that a lot of specific details are set forth in the following description in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description here, and those skilled in the art can make similar generalization without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0035] Secondly, the utility model is described in detail in combination with the schematic view, and when the embodiment of the utility model is described in detail, the sectional view of the device structure will be partially enlarged without the general proportion for the convenience of description, and the schematic view is only an example, which should not limit the scope of protection of the utility model here. In addition, three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0036] Thirdly, the term "an embodiment" or "embodiments" in the present application refers to specific features, structures or characteristics that can be included in at least one implementation of the utility model. "In an embodiment" appearing in different places in the specification does not refer to the same embodiment, nor is it an embodiment that is independent of or mutually exclusive with other embodiments.

[0037] The utility model proposes an escape door switch operating device, referring to Figure 4 , including shell 1, corner gear 2, crank handle 3 and connecting rod 4. Corner gear 2 is arranged in shell 1, as Figure 5 、 Figure 6As shown, the first gear 21 and the second gear 22 are arranged perpendicularly to the central axis and mesh with each other. The first gear 21 is connected to an input shaft 23 that passes through the housing wall, and the second gear 22 is connected to an output shaft 24 that passes through the housing wall. The force input from the input shaft 23 is changed 90 degrees and then output through the output shaft 24, thus changing the transmission direction. This changes the direction of power transmission by 90 degrees from horizontal to vertical, simultaneously transmitting and adjusting torque and speed, achieving the desired output speed and torque through a 1:1 gear ratio. The crank handle 3 is connected to the first gear 21 via the input shaft 23. One end of the connecting rod 4 is connected to the second gear 22 via the output shaft 24, and the other end has a groove that mates with the shaft switch on the reducer assembly D.

[0038] The following is a detailed description of the various components of the escape door switch operating device described above.

[0039] The housing 1 of one embodiment of the present invention is a hexahedron. The input shaft 23 and the output shaft 24 respectively pass through two adjacent side walls of the housing 1 . The crank 3 and the connecting rod 4 are respectively located on two adjacent side surfaces of the housing 1 .

[0040] In one embodiment of the present invention, a handle 5 is fixedly provided on a side wall of the housing adjacent to the side wall through which the input shaft 23 and the output shaft 24 pass, so as to facilitate hand-held operation by an operator.

[0041] like Figure 7 As shown, the handle 5 of one embodiment of the present invention comprises a support 51, a grip 52, and a U-shaped bracket 53. One side of the support 51 is bolted to the side wall of the housing 1, and the other side is fixedly connected to two straight rods. The grip 52 is fixed between the two straight rods and arranged parallel to the support 51. The U-shaped bracket 53 securely connects the two straight rods, allowing the operator to position their arm within the hollow portion of the U-shaped bracket 53 during operation, thereby improving the stability of the handheld tool.

[0042] like Figure 8 As shown, the connecting rod 4 of one embodiment of the present invention includes a first connecting rod 41 and a second connecting rod 42. One end of the first connecting rod 41 is fixedly connected to the output shaft 24 through a sleeve, and the other end is connected to one end of the second connecting rod 42 through a universal coupling 43. The other end of the second connecting rod 42 is provided with a groove that matches the rotating shaft switch on the reducer assembly D. The universal coupling can connect two axes that are not in the same straight line, namely the first connecting rod 41 and the second connecting rod 42, to transmit torque and rotational motion, allowing a certain angle and displacement error between the two axes, adapting to the inaccurate alignment of the axes caused by operation, compensating for the deviation between the axes, and increasing the flexibility of operation. At the same time, the first connecting rod 41 and the second connecting rod 42 can also be folded 180° through the universal coupling, reducing the storage size of the tooling, and facilitating storage and carrying.

[0043] In one embodiment of the present invention, a butterfly bolt 44 is provided at one end of the second connecting rod 42 where a groove is formed. The butterfly bolt 44 penetrates through the outer wall of the second connecting rod 42 and extends deep into the groove to secure the shaft switch on the reducer assembly D during operation to prevent idling.

[0044] like Figure 9 As shown, the crank handle 3 of one embodiment of the present invention is bent to facilitate manual cranking. The operator inputs a rotational torque to open and close the emergency door by rotating the crank handle 3 , and one end of the crank handle is fixedly connected to the input shaft 23 through a shaft sleeve 31 .

[0045] When the operator uses the escape door switch operating device of the present invention to open or close the escape door A, Figure 10 As shown, simply insert the grooved end of the second connecting rod 42 into the brake assembly B to secure it against the outer wall of the shaft switch on the reducer assembly D. Tighten the butterfly bolt 44 to hold the shaft switch in place. Then, pass your left arm through the hollow space of the U-shaped bracket 53 to grasp the handle 52. With your right hand, rotate the crank 3. The power transmission direction is changed 90 degrees by the angle gear 2 to become vertical, rotating the shaft switch on the reducer assembly D. This force is then transmitted through the brake gear C to open and close the escape door. Turning the crank 3 clockwise opens the escape door; to close the escape door, turn the crank 3 counterclockwise.

[0046] It should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inside", "outside", etc. are all based on the directions or positional relationships shown in the accompanying drawings. Such expressions are only intended to make the description of the present invention simpler and more convenient, and do not indicate or imply that the referred parts must have a specific direction or be constructed and operated in a specific direction.

[0047] In addition, in this application, unless otherwise expressly specified or limited, terms such as "connected," "disposed," and similar terms should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; it can mean mechanical or electrical; it can mean direct, indirect through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] The construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape, and proportion of various elements, as well as parameter values, mounting arrangements, use of materials, colors, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number, or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures described herein that perform the functions described, and is not only structurally equivalent but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0051] The utility model has the following beneficial effects:

[0052] 1) The emergency door switch operating device of the present invention allows the operator to easily open and close the emergency door by holding the handle with one hand and rotating the crank with the other hand, without having to raise both hands to rotate the entire operating device, thereby reducing the burden on the operator and improving operating efficiency.

[0053] 2) The U-shaped bracket design in the escape door switch operating device of the present invention provides support space for the operator's arms, thereby further improving the stability of the handheld tooling.

[0054] 3) The universal joint in the escape door opening and closing operation device can not only make the first connecting rod and the second connecting rod have a certain angle and displacement error, compensate for the deviation between the shafts, and increase the operation flexibility, but also make the first connecting rod and the second connecting rod be folded by 180 degrees through the universal joint, reduce the size of the tool storage, and facilitate storage and carrying.

[0055] 4) The butterfly bolt in the escape door opening and closing operation device can resist the rotating shaft switch on the speed reducer assembly during operation, and prevent idling.

[0056] The above-described embodiments are only further descriptions of the utility model, and do not limit the utility model in other forms, and the utility model can have other various embodiments. Without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding modifications and changes according to the utility model, but these corresponding modifications and changes should fall within the protection scope of the utility model.

Claims

1. An escape door switch operating device characterized by comprising: The utility model relates to a speed reducer assembly, comprising: a housing; a corner gear arranged in the housing, comprising a first gear and a second gear arranged perpendicularly along a center axis and meshing with each other, the first gear being connected with an input shaft penetrating through a wall of the housing, the second gear being connected with an output shaft penetrating through the wall of the housing, the force input by the input shaft being changed by 90 degrees and then output from the output shaft; a handle connected with the first gear through the input shaft; a connecting rod, one end of which is connected with the second gear through the output shaft, and the other end of which is provided with a groove matched with a rotating shaft switch on the speed reducer assembly.

2. The escape door switch operating device according to claim 1, wherein The housing is a hexahedron, the input shaft and the output shaft penetrating through two adjacent side walls of the housing respectively, and the handle and the connecting rod are arranged on two adjacent side surfaces of the housing respectively.

3. The escape door switch operating device according to claim 2, wherein A handle is fixedly arranged on a side wall of the housing adjacent to the side walls through which the input shaft and the output shaft penetrate.

4. The escape door switch operating device according to claim 3, wherein The handle comprises a support and a handle, one side of the support is fixedly arranged on the side wall of the housing through a bolt, the other side of the support is fixedly connected with two straight rods, and the handle is fixedly arranged between the two straight rods and arranged parallel to the support.

5. The escape door switch operating device according to claim 4, wherein The handle further comprises a U-shaped bracket fixedly connected with the two straight rods.

6. The escape door switch operating device according to claim 1, wherein The connecting rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected with the output shaft through a shaft sleeve, the other end of the first connecting rod is connected with one end of the second connecting rod through a universal coupling, and the other end of the second connecting rod is provided with a groove matched with the rotating shaft switch on the speed reducer assembly.

7. The escape door switch operating device according to claim 6, wherein The end of the second connecting rod provided with the groove is provided with a butterfly bolt, the butterfly bolt penetrating through the outer wall of the second connecting rod and entering the groove.

8. The escape door switch operating device according to claim 1, wherein The handle is in a bent shape, one end of the handle is fixedly connected with the input shaft through a shaft sleeve.

Images