Carriage single-side lifting door, carriage and tourist coach

Abstract

The utility model discloses a carriage unilateral lifting door, carriage and tourist coach, the carriage unilateral lifting door is installed in the carriage body and comprises an active lifting assembly, a rotating shaft and a baffle, the active lifting assembly comprises a motor and a main swing rod, the rotating shaft is transversely arranged, the output shaft of the motor is in transmission connection with one end of the rotating shaft, and the other end of the rotating shaft is in transmission connection with the baffle. The end, away from the motor, of the main swing rod is movably connected with the baffle. The motor drives the rotating shaft to rotate, and the main swing rod drives the baffle to ascend or descend under the rotating effect of the rotating shaft. Through cooperation of the motor, the rotating shaft and the main swing rod, the baffle is controlled to ascend or descend to achieve opening and closing of the compartment door, the structure is simple, the occupied space is small, and the safety coefficient is high.

Description

Technical Field

[0001] This utility model relates to the field of amusement equipment technology, and in particular to a single-sided sliding door for a carriage, a carriage, and a sightseeing vehicle. Background Technology

[0002] Most existing train carriage doors are either side-opening or double-opening. Side-opening doors take up a lot of space, especially wider ones; double-opening doors are convenient for getting on and off the train, but they are less safe and pose a risk of injuring passengers who get close to the door. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a single-sided lifting door for a carriage, a carriage, and a tour bus, which aims to solve the problems of large space occupation and safety issues when the existing carriage doors are opened and closed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] In a first aspect, this utility model provides a single-sided lifting door for a vehicle body, installed in the vehicle body, including an active lifting assembly, a rotating shaft, and a baffle. The active lifting assembly includes a motor and a main swing arm. The rotating shaft is arranged laterally, and the output shaft of the motor is connected to one end of the rotating shaft. The end of the main swing arm near the motor is fixedly connected to the rotating shaft, and the end of the main swing arm away from the motor is connected to the baffle. The motor drives the rotating shaft to rotate, and the main swing arm drives the baffle to rise or fall under the rotation of the rotating shaft.

[0006] Furthermore, the upper side of the baffle is provided with a hinge seat, and the end of the main swing rod away from the motor is hinged to the hinge seat.

[0007] Furthermore, the active lifting assembly also includes a main bearing housing, which is fixedly connected to the carriage body. The rotating shaft passes through the main bearing housing and is hinged to the main bearing housing.

[0008] Furthermore, the active lifting assembly also includes a motor mounting base and a coupling. The motor mounting base is fixedly connected to the carriage body, the motor is mounted on the motor mounting base, the coupling is located inside the motor mounting base, and the output shaft of the motor is connected to the rotating shaft through the coupling.

[0009] Furthermore, the active lifting assembly also includes a main pneumatic spring, one end of which is hinged to the end of the main swing arm near the rotating shaft, and the other end of which is hinged to the carriage body.

[0010] Furthermore, a magnetic attraction element is provided between the baffle and the carriage body.

[0011] Further, at least one auxiliary lifting assembly is further included, which is arranged along the rotation shaft axis direction and spaced from the active lifting assembly, the auxiliary lifting assembly comprises a secondary swing rod, a secondary bearing seat and a secondary pneumatic spring, the secondary bearing seat is fixedly connected to the carriage box body, the rotation shaft is arranged in the secondary bearing seat and is hinged to the secondary bearing seat, one end of the secondary swing rod close to the secondary bearing seat is fixedly connected to the rotation shaft, the other end of the secondary swing rod away from the secondary bearing seat is connected to the baffle, one end of the secondary pneumatic spring is hinged to the end of the secondary swing rod close to the rotation shaft, and the other end of the secondary pneumatic spring is hinged to the carriage box body.

[0012] Further, the tensioning sleeves are arranged between the primary swing rod and the rotation shaft and between the secondary swing rod and the rotation shaft.

[0013] In a second aspect, the utility model provides a carriage, including a carriage box body and the one -sided lift -and -pull door of the carriage described above, the one -sided lift -and -pull door of the carriage is located the side surface of the carriage box body.

[0014] In a third aspect, the utility model provides a sightseeing vehicle, including the carriage described above.

[0015] The utility model has the advantages that: a one -sided lift -and -pull door of the carriage is installed on the carriage box body, and includes an active lifting assembly, a rotation shaft and a baffle, the active lifting assembly includes a motor and a primary swing rod, the rotation shaft is arranged transversely, the output shaft of the motor is in transmission connection with one end of the rotation shaft, one end of the primary swing rod close to the motor is fixedly connected to the rotation shaft, and the other end of the primary swing rod away from the motor is movably connected to the baffle; the motor drives the rotation shaft to rotate, and the primary swing rod drives the baffle to rise or fall under the rotation of the rotation shaft.

[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, can be implemented according to the content of the specification, and in order to let the above and other purpose characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawings needed in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, under the premise of not creating labor, other drawings can also be obtained according to these drawings.

[0018] Figure 1The structure schematic view of the single-side sliding door of the carriage in the closed state is provided in the embodiment one of the utility model.

[0019] Figure 2 For Figure 1 The local enlarged view at A in the middle;

[0020] Figure 3 The partial sectional view of the single-side sliding door of the carriage is provided in the embodiment one of the utility model;

[0021] Figure 4 The structure schematic view of the single-side sliding door of the carriage in the opened state is provided in the embodiment one of the utility model;

[0022] Figure 5 The structure schematic view of the tensioning sleeve in the single-side sliding door of the carriage is provided in the embodiment one of the utility model;

[0023] Figure 6 The structure schematic view of the single-side sliding door of the carriage is provided in the embodiment two of the utility model.

[0024] Reference signs

[0025] 1, active lifting assembly; 11, motor; 12, main swing rod; 13, main bearing seat; 14, motor mounting seat; 15, main pneumatic spring; 16, shaft coupling; 2, rotating shaft; 3, baffle; 4, auxiliary lifting assembly; 41, auxiliary swing rod; 42, auxiliary bearing seat; 43, auxiliary pneumatic spring; 5, carriage box body; 6, magnetic attraction piece; 7, tensioning sleeve. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described clearly and completely in combination with the specific embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0028] In addition, the terms "first", "second", "third", etc. are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" or "third" can include, explicitly or implicitly, at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0029] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0031] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0032] Example one

[0033] As Figures 1-5As shown, the utility model embodiment provides a single -edged lift -and -draw door of car, install in car box body 5, including initiative lift subassembly 1, pivot 2 and baffle 3, initiative lift subassembly 1 includes motor 11 and main swing lever 12, initiative lift subassembly 1 is used for driving the lifting of baffle 3, baffle 3 is equivalent to the door of car box body 5. Pivot 2 is transversely arranged, the output shaft of motor 11 is transmission connection with one end of pivot 2, the one end of main swing lever 12 close to motor 11 is fixedly connected with pivot 2, and the one end of main swing lever 12 away from motor 11 is connected with baffle 3;Motor 11 drives pivot 2 to rotate, and main swing lever 12 is driven baffle 3 to go up or descend under the rotation of pivot 2.

[0034] In actual work process, motor 11 drives pivot 2 to rotate through output shaft, to drive main swing lever 12 to rotate. With the rotation of main swing lever 12, the one end of baffle 3 will go up or descend under the action of main swing lever 12, realize the lifting of baffle 3. Motor 11 can control the positive and negative direction rotation of pivot 2 by reversing, to realize the lifting process of baffle 3. The advantage of this design is that, by simple motor 11 drive, cooperate the transmission structure of pivot 2 and main swing lever 12, can effectively control the lifting of baffle 3, simple structure, small space occupation and high safety factor. For example Figure 1 And Figure 4 As shown, Figure 1 In the middle, baffle 3 is in closed state, Figure 4 In the middle, baffle 3 is in the open state of going up.

[0035] It is worth noting that the baffle 3 of the present application is driven by the motor 11 to rotate the shaft 2 and the main swing lever 12, and is raised or lowered, rather than horizontally moved outward or inward. The conventional sliding door needs to slide horizontally along the door track when opening, often requiring a certain width space to fully open the door. However, the baffle 3 of the present application does not occupy horizontal space when opening, thereby avoiding excessive occupation of space in the width direction when opening and closing.

[0036] The upper side of the baffle 3 is provided with a hinge seat, and the end of the main swing lever 12 away from the motor 11 is hingedly connected to the hinge seat. Specifically, the hinge seat is fixedly installed on the upper side of the baffle 3, and is usually made of metal material, having high strength and durability to ensure that it is not easily damaged in frequent use. The hinge seat is hingedly connected to the distal end of the main swing lever 12 through a hinge shaft, so that the main swing lever 12 can freely rotate around the hinge shaft, thereby effectively controlling the baffle 3.

[0037] In practical application, when the motor 11 drives the pivot 2 to rotate, the main swing lever 12 rotates around the pivot 2. Since the distal end of the main swing lever 12 is hingedly connected to the hinge seat, the rotation of the main swing lever 12 will drive the hinge seat to move along a circular arc path, thereby causing the baffle 3 to go up or down, to realize the opening and closing of the door of the car box body 5.

[0038] Through the hinged connection of the hinge seat and the main swing rod 12, the torque generated by the motor 11 can be more directly transmitted to the baffle 3, realizing smooth opening and closing. At the same time, the existence of the hinge seat makes the baffle 3 can rotate or overturn freely under the drive of the main swing rod 12, flexible to adapt to different opening angles and needs. Whether it is fully open, half open or other special angles, the design of the hinge seat can ensure the smooth movement of the door body, and there will be no jamming or incoherent phenomenon.

[0039] As shown in Figures 2-3 The main bearing seat 13 is fixedly connected to the carriage box body 5, the rotating shaft 2 is arranged in the main bearing seat 13, and the rotating shaft 2 is hinged to the main bearing seat 13, so that the rotating shaft 2 can rotate freely around the axis of the main bearing seat 13.

[0040] Specifically, the main bearing seat 13 is made of high-strength material, such as steel or alloy, to ensure that it can withstand the load and friction generated by the rotating shaft 2 during rotation. The main bearing seat 13 is internally provided with a ball bearing or a sliding bearing to reduce the friction resistance when the rotating shaft 2 rotates, thereby ensuring that the rotating shaft 2 can rotate smoothly and stably. Through this design, the rotating shaft 2 can rotate around the axis of the main bearing seat 13 under the drive of the motor 11, thereby driving the main swing rod 12 connected thereto to move, and then realizing the opening and closing of the baffle 3.

[0041] The main bearing seat 13 provides a stable support point for the rotating shaft 2, which can effectively disperse the load generated by the rotating shaft 2 during rotation, reduce the wear of the system, and prolong the service life of the rotating shaft 2.

[0042] As shown in Figures 2-3 The main active pull assembly 1 further comprises a motor mounting seat 14 and a shaft coupling 16, the motor mounting seat 14 is fixedly connected to the carriage box body 5, the motor 11 is installed in the motor mounting seat 14, the shaft coupling 16 is arranged in the motor mounting seat 14, and the output shaft of the motor 11 is connected with the rotating shaft 2 through the shaft coupling 16.

[0043] The structure of the motor mounting seat 14 installed at the car body box 5 is a hollow structure, and the output shaft of the motor 11 extends from the hollow of the hollow structure. The position of the motor mounting seat 14 is located near the top of the car body box 5. The motor 11 is installed on the motor mounting seat 14 and is fixed by bolts or other fixing methods to ensure its stability. The coupling 16 is arranged inside the motor mounting seat 14 and is connected with the output shaft of the motor 11. The other end of the coupling 16 is connected with the rotating shaft 2. The main function of the coupling 16 is to realize power transmission between the output shaft of the motor 11 and the rotating shaft 2, and allow a certain axial or angular deviation to reduce the stress concentration caused by machining errors or installation errors. When the motor 11 works, it rotates through its output shaft to drive the coupling 16 to rotate. The coupling 16 transmits the rotating power of the motor 11 to the rotating shaft 2, and then drives the opening and closing movement of the main swing lever 12 and the baffle 3.

[0044] The design of the coupling 16 enables the power of the motor 11 to be efficiently transmitted to the rotating shaft 2, ensuring that the output power of the motor 11 is fully utilized during the opening and closing of the door. Due to the presence of the coupling 16, smooth power transmission can be achieved between the output shaft of the motor 11 and the rotating shaft 2, reducing energy loss.

[0045] As shown in Figure 2 The main active pull assembly 1 also includes a main pneumatic spring 15, one end of which is hinged to the end of the main swing lever 12 close to the rotating shaft 2, and the other end of which is hinged to the car body box 5. The main pneumatic spring 15 is made of high-strength and fatigue-resistant materials, which can withstand repeated opening and closing loads and maintain good elasticity and stability during use.

[0046] Specifically, the hinged structure of the main pneumatic spring 15 enables it to stretch and contract with the movement of the main swing lever 12. When the motor 11 drives the rotating shaft 2 to rotate and drives the main swing lever 12 to move, the main pneumatic spring 15 will also deform with the opening and closing of the swing lever, store or release energy through its elastic properties, thereby providing additional assistance for the opening and closing of the baffle 3. Such design makes the opening and closing process of the baffle 3 more stable, reducing the burden of the motor 11.

[0047] As shown in Figure 1As shown, the baffle 3 and the carriage box body 5 are provided with magnetic attraction members 6, which include first magnetic attraction members 6 and second magnetic attraction members 6 respectively arranged on the baffle 3 and the carriage box body 5. When the baffle 3 is closed, the first magnetic attraction members 6 and the second magnetic attraction members 6 attract each other, thereby firmly attracting the baffle 3 on the carriage box body 5. The first magnetic attraction members 6 are usually fixed on the inner side edge of the baffle 3, and the second magnetic attraction members 6 are installed on the corresponding contact surface of the carriage box body 5. The magnetic attraction members 6 can adopt the form of permanent magnets, magnetic materials or electromagnets, and the appropriate magnetic attraction strength and attraction mode are selected according to actual needs to ensure that the baffle 3 can be stably and reliably kept closed in the closed state. In this embodiment, electromagnets are adopted for easy control.

[0048] The working process is as follows:

[0049] When the door needs to be opened, the magnetic attraction members 6 are powered off, the motor 11 drives the rotating shaft 2 to rotate through the coupling 16, drives the swing rod fixedly connected thereto to rotate, and the end of the swing rod away from the motor 11 is lifted by 180°, thereby driving the baffle 3 to be lifted, so that one side of the carriage box body 5 is no longer closed, as shown in Figure 4 The figure shows the schematic diagram after the door is opened. The gas spring is used to balance the weight of the baffle 3, so that the motor 11 can drive the baffle 3 to be lifted with smaller torque, and the rotation of the swing rod is more stable. When the door needs to be closed, the motor 11 is reversed, the baffle 3 is lowered, the magnetic attraction members 6 are powered on, and one side of the carriage box body 5 is closed, as shown in Figure 1 The figure shows the schematic diagram after the door is closed.

[0050] As shown in Figure 1 , Figure 4 The single-side pull door of the carriage further includes at least one auxiliary pull assembly 4, which is arranged along the axis direction of the rotating shaft 2 and spaced from the main pull assembly 1. The auxiliary pull assembly 4 includes a secondary swing rod 41, a secondary bearing seat 42 and a secondary gas spring 43. The secondary bearing seat 42 is fixedly connected to the carriage box body 5 and serves as a support point of the rotating shaft 2, thereby ensuring the stability and durability of the rotating shaft 2. The rotating shaft 2 penetrates through the secondary bearing seat 42, and the rotating shaft 2 and the secondary bearing seat 42 are connected in a hinged manner, which allows the rotating shaft 2 to rotate freely relative to the secondary bearing seat 42 during opening and closing. The secondary swing rod 41 is designed such that one end close to the secondary bearing seat 42 is fixedly connected to the rotating shaft 2, and the other end away from the secondary bearing seat 42 is connected to the baffle 3. In this way, during the rotation of the rotating shaft 2, the secondary swing rod 41 can move along with it, thereby effectively opening and closing the baffle 3. One end of the secondary gas spring 43 is hinged to the end of the secondary swing rod 41 close to the rotating shaft 2, and the other end is hinged to the carriage box body 5. The secondary gas spring 43 provides compensation force through its elasticity, thereby assisting the opening and closing of the baffle 3 and ensuring that additional power support is provided during opening or closing.

[0051] By setting the auxiliary lifting assembly 4, the opening and closing force is effectively distributed to the active lifting assembly 1 and the auxiliary lifting assembly 4, thereby reducing the burden of a single assembly. Such a design can improve the working efficiency of the system, reduce the load of the motor 11 and the active lifting assembly 1, and prolong the service life. At the same time, the introduction of the auxiliary swing rod 41 makes the movement of the baffle 3 in the opening and closing process more stable, especially under the influence of external environment such as strong wind or vibration, the effect of the auxiliary swing rod 41 can effectively reduce the shaking of the baffle 3, and safety is ensured.

[0052] It should be noted that the number of auxiliary lifting assemblies 4 can be set according to actual needs. In the first embodiment, one active lifting assembly 1 and one auxiliary lifting assembly 4 are configured, and the active lifting assembly 1 and the auxiliary lifting assembly 4 jointly serve one baffle 3.

[0053] As shown in Figure 5 The tensioning sleeve 7 is provided between the main swing rod 12 and the rotating shaft 2 and between the auxiliary swing rod 41 and the rotating shaft 2. Specifically, the tensioning sleeve 7 is a circular ring, the rotating shaft 2 penetrates the tensioning sleeve 7, and the end of the swing rod connected with the rotating shaft 2 is provided with a concave circular hole, and the tensioning sleeve 7 is embedded in the hole. The initial position of the main swing rod 12 and the auxiliary swing rod 41 can be adjusted by adjusting the tensioning sleeve 7.

[0054] The utility model embodiment further provides a carriage, including carriage box body 5, and the one -sided lift door of the carriage of above -mentioned, one -sided lift door of the carriage is located at the side of carriage box body 5. The carriage box body 5 can be cuboid, cube or other shapes, and the present application does not limit this.

[0055] The one -sided lift door of the carriage can be arranged on one side or multiple sides of the carriage box body 5, which can be determined according to actual needs.

[0056] In addition to the above-mentioned one -sided lift door of the carriage, the remaining structure of the carriage can be the same as in the prior art, therefore, the remaining structure will not be described here.

[0057] The utility model embodiment further provides a sightseeing vehicle, including the carriage of above-mentioned. In addition to the above-mentioned one -sided lift door of the carriage, the remaining structure of the sightseeing vehicle can be the same as in the prior art, therefore, the remaining structure will not be described here.

[0058] Embodiment two

[0059] As shown in Figure 6 The difference between the second embodiment and the first embodiment is that the rotating shaft 2 is lengthened, that is, it can connect two baffles 3, as the door of the two-section carriage box body 5. When working, the two baffles 3 are driven to open or close synchronously by the motor 11.

[0060] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be encompassed within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A single side sliding door for a vehicle compartment installed to a vehicle compartment body, characterized in that, The active pulling assembly comprises a motor and a main swing lever, the rotating shaft is arranged transversely, the output shaft of the motor is in transmission connection with one end of the rotating shaft, one end of the main swing lever close to the motor is in fixed connection with the rotating shaft, and the other end of the main swing lever is connected with the baffle.

2. A single-sided sliding door for a vehicle according to claim 1, characterized in that The upper side of the baffle is provided with a hinged seat, and the other end of the main swing lever is in hinged connection with the hinged seat.

3. A single-sided sliding door for a vehicle according to claim 1, characterized in that The active pulling assembly further comprises a main bearing seat, the main bearing seat is in fixed connection with the carriage box body, the rotating shaft is arranged in the main bearing seat, and the rotating shaft is in hinged connection with the main bearing seat.

4. A single-sided sliding door for a vehicle according to claim 1, characterized in that, The active pulling assembly further comprises a motor mounting seat and a shaft coupling, the motor mounting seat is in fixed connection with the carriage box body, the motor is mounted on the motor mounting seat, the shaft coupling is arranged in the motor mounting seat, and the output shaft of the motor is connected with the rotating shaft through the shaft coupling.

5. A single-sided sliding door for a vehicle body according to claim 3, wherein The active pulling assembly further comprises a main pneumatic spring, one end of the main pneumatic spring is in hinged connection with one end of the main swing lever close to the rotating shaft, and the other end of the main pneumatic spring is in hinged connection with the carriage box body.

6. A single-sided sliding door for a vehicle according to claim 1, characterized in that, A magnetic attraction element is arranged between the baffle and the carriage box body.

7. A single-sided sliding door for a vehicle body according to claim 5, wherein The active pulling assembly further comprises a main pneumatic spring, one end of the main pneumatic spring is in hinged connection with one end of the main swing lever close to the rotating shaft, and the other end of the main pneumatic spring is in hinged connection with the carriage box body.

8. A single-sided sliding door for a vehicle body according to claim 7, characterized in that A magnetic attraction element is arranged between the baffle and the carriage box body.

9. A vehicle bed, characterized by, Further comprising at least one auxiliary pulling assembly, the auxiliary pulling assembly is arranged along the rotating shaft axis direction and is spaced apart from the active pulling assembly, the auxiliary pulling assembly comprises a secondary swing lever, a secondary bearing seat and a secondary pneumatic spring, the secondary bearing seat is in fixed connection with the carriage box body, the rotating shaft is arranged in the secondary bearing seat, and the rotating shaft is in hinged connection with the secondary bearing seat, one end of the secondary swing lever close to the secondary bearing seat is in fixed connection with the rotating shaft, the other end of the secondary swing lever away from the secondary bearing seat is connected with the baffle, one end of the secondary pneumatic spring is in hinged connection with one end of the secondary swing lever close to the rotating shaft, and the other end of the secondary pneumatic spring is in hinged connection with the carriage box body.

10. A tour vehicle, characterized by Tensioning sleeves are arranged between the main swing lever and the rotating shaft and between the secondary swing lever and the rotating shaft. The vehicle comprises a carriage box body and a single-side pulling door of the carriage according to any one of claims 1-8, and the single-side pulling door of the carriage is arranged on the side of the carriage box body. The vehicle comprises the carriage according to claim 9.

Images