Unloading door opening and closing system of hopper car and hopper car

Abstract

The invention discloses a hopper car unloading door opening and closing system and a hopper car, and belongs to the technical field of hopper cars. Comprising a driving seat; the driving shaft is rotationally arranged in the driving seat; the first end of the first connecting arm is connected to the driving shaft; a kidney-shaped hole is formed in the second connecting arm in the length direction, and the kidney-shaped hole is connected with the second end of the first connecting arm in a pivoted mode; a guide; the sliding piece is movably connected to the guiding piece, and the sliding piece is hinged to one end of the second connecting arm; the first end of the third connecting arm is hinged to the sliding part; the supporting seat is connected to the hopper car; the transmission part is hinged to the supporting seat and the second end of the third connecting arm; the first end of the fourth connecting arm is hinged to the transmission part; the first end of the fifth connecting arm is hinged to the second end of the fourth connecting arm; a shaft seat; and the main shaft is rotationally arranged in the shaft seat, and the main shaft is connected with the second end of the fifth connecting arm. The hopper car unloading door opening and closing system and the hopper car are convenient to operate, safe and reliable.

Description

Technical Field

[0001] The present application belongs to the technical field of hopper cars, and in particular relates to a hopper car unloading door opening and closing system and a hopper car. Background Art

[0002] Railway hopper cars are a type of special vehicle used for railway transportation, mainly used to transport various bulk goods of large equivalent, such as grain, ore and building materials. Usually, the bottom of the railway hopper car is provided with a door panel that can be deflected and opened and closed, and an opening and closing system is provided to drive the door panel to deflect and realize the opening and closing of the bottom of the railway hopper car to meet the needs of loading and unloading goods.

[0003] The opening and closing system usually needs to drive multiple door panels to deflect and open and close synchronously. Therefore, a worm gear drive mechanism, a transmission main shaft, and multiple sets of drive connecting rods hinged on the main shaft at intervals are set in the opening and closing system. The main shaft is driven to rotate by the worm gear drive mechanism to drive the drive connecting rod to move, thereby pushing and pulling the door panels to deflect. However, the worm gear transmission mechanism has high requirements for coupling accuracy and poor fault tolerance. Once wear or improper matching occurs, the mechanism is prone to jamming and functional performance is unstable. In addition, since the coupling connection of the worm gear maintains rigid and stable contact, during the unloading process, when the impact of the cargo is transmitted to the worm gear mechanism through the door panel, it is easy to cause structural damage and even increase the safety risk of the operator. Summary of the invention

[0004] The present application provides a hopper truck unloading door opening and closing system and a hopper truck, aiming to at least to some extent solve the technical problems that the hopper truck unloading door opening and closing system has poor impact resistance, is easily damaged and has safety risks.

[0005] In one aspect of an embodiment of the present application, a hopper truck unloading door opening and closing system is provided, which is configured to be installed on a hopper truck; the hopper truck unloading door opening and closing system comprises:

[0006] A driving seat, mounted on the hopper car;

[0007] a drive shaft rotatably disposed in the drive seat;

[0008] A first connecting arm, a first end of which is connected to the driving shaft so as to rotate along with the driving shaft;

[0009] The second connecting arm is provided with a waist-shaped hole along the length direction, and the waist-shaped hole is pivotally connected to the second end of the first connecting arm;

[0010] A guide member, mounted on the hopper car;

[0011] a sliding member, movably connected to the guide member, and the sliding member is hinged to one end of the second connecting arm;

[0012] a third connecting arm, a first end of which is hinged to the sliding member;

[0013] A support seat connected to the hopper car;

[0014] A transmission member, hinged to the support seat and the second end of the third connecting arm respectively;

[0015] a fourth connecting arm, a first end of which is hinged to the transmission member;

[0016] a fifth connecting arm, a first end of which is hinged to the second end of the fourth connecting arm;

[0017] an axle seat connected to the hopper car;

[0018] A main shaft is rotatably disposed in the shaft seat, and the main shaft is connected to the second end of the fifth connecting arm so as to rotate under the drive of the fifth connecting arm.

[0019] In some embodiments, the guide member includes a guide cylinder, a first window and a second window are opened on the cylinder wall of the guide cylinder, the sliding member is slidably arranged in the guide cylinder, the second connecting arm is movably embedded in the first window, and the third connecting arm is movably embedded in the second window.

[0020] In some embodiments, a roller group is provided on the sliding member, and the roller group is rollingly connected to the inner wall of the guide cylinder.

[0021] In some embodiments, any two directions of the axial direction of the drive shaft, the axial direction of the main shaft, and the guiding direction of the guide member are orthogonal.

[0022] In some embodiments, the transmission member includes a curved arm, a first end of the curved arm is hinged to the support seat, a second end of the curved arm is hinged to the second end of the third connecting arm, and a middle part of the curved arm is hinged to the first end of the fourth connecting arm.

[0023] In some embodiments, the support seat includes two clamping plates arranged opposite to each other, the curved arm is deflectably arranged between the two clamping plates, and the first end of the curved arm is pivotally connected to the two clamping plates.

[0024] In some embodiments, at a hinge point between the second end of the crank arm and the middle of the crank arm, the second end of the crank arm is away from the fourth link.

[0025] In some embodiments, a handle is connected to the drive shaft.

[0026] Another aspect of the embodiment of the present application further provides a hopper car, comprising:

[0027] Vehicle body;

[0028] a door panel, connected to the vehicle body in a deflectable manner;

[0029] A driving connecting rod, hinged to the door panel;

[0030] A hopper car unloading door opening and closing system, wherein the driving seat, the guide member, the supporting seat and the axle seat are installed on the hopper car, and the main shaft is connected to the driving connecting rod.

[0031] In some embodiments, the drive link comprises:

[0032] a sixth connecting arm connected to the main shaft;

[0033] A seventh connecting arm has a first end hinged to the sixth connecting arm and a second end hinged to the door panel.

[0034] The embodiments of the present application have at least the following beneficial effects:

[0035] The embodiment of the present application provides a hopper truck unloading door opening and closing system and a hopper truck, wherein the hopper truck unloading door opening and closing system comprises: a drive seat, a drive shaft, a first connecting arm, a second connecting arm, a guide member, a sliding member, a third connecting arm, a support seat, a transmission member, a fourth connecting arm, a fifth connecting arm, an axle seat and a main shaft; the drive seat is installed on the hopper truck as a rotation support for the drive shaft, and torque output is achieved by rotating the drive shaft; then, the sliding member is rotationally connected through a first-stage connecting rod mechanism consisting of a first connecting arm and a second connecting arm that are hinged in sequence, and the sliding member is driven to move along the guide member to convert the torque into a driving torque in a set direction; the axle seat is installed on the hopper truck as a rotation support for the main shaft, and the sliding member is connected to the main shaft through a second-stage connecting rod mechanism consisting of a fourth connecting arm and a fifth connecting arm that are hinged in sequence, thereby driving the main shaft to rotate, outputting torque, driving the door panel to deflect, and realizing the opening and closing of the hopper truck. It is worth noting that by establishing a first-stage connecting rod mechanism, a directional sliding mechanism, and a second-stage connecting rod mechanism that are connected in sequence between the rotating driving shaft and the main shaft to convert the direction and form of the torque, a stable driving structure is achieved, and a multi-stage lever principle structure can be formed based on the transmission structure of the hinged connecting rod, which can reduce the force required for the opening and closing operation to a certain extent and reduce the difficulty of operation. On the other hand, since the use of a multi-stage connecting rod and a directional sliding mechanism can utilize the movable connection structure of the multi-stage connecting rod, it has a certain amplitude of swing space and can absorb a certain degree of impact, thereby buffering the impact from the door panel to a certain extent, thereby reducing the risk of impact damage to the hopper car unloading door opening and closing system and even the hopper car as a whole, and can also reduce the safety risk of the operator to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A schematic diagram of the structure of a hopper car in an embodiment of the present application is shown;

[0038] Figure 2 Shows Figure 1 Schematic diagram of the closed state of the hopper car in FIG.

[0039] Figure 3 Shows Figure 1 Schematic diagram of the hopper car in the open state;

[0040] Figure 4 Shows Figure 1 Schematic diagram of the opening state of the opening and closing system in the hopper car;

[0041] Figure 5 Shows Figure 1 Schematic diagram of the closed state of the opening and closing system in the hopper car;

[0042] Figure 6 Shows Figure 1 The structural diagram of the opening and closing system of the hopper car unloading door;

[0043] Figure 7 Shows Figure 6 A partial enlarged view of the opening and closing system of the hopper car unloading door;

[0044] Figure 8 Shows Figure 7 Another structural diagram of the hopper car unloading door opening and closing system;

[0045] Fig. 9 Shows Figure 7 A top view of the hopper car unloading door opening and closing system;

[0046] Fig.10 Shows Figure 7 Schematic diagram of the opening state of the opening and closing system of the hopper car unloading door;

[0047] Fig.11 Shows Figure 7 Schematic diagram of the closed state of the hopper car unloading door opening and closing system.

[0048] Reference numerals:

[0049] 1- Car body;

[0050] 2-door panel, 21-hinge assembly, 211-hanging seat, 212-deflection arm;

[0051] 3-driving connecting rod, 31-sixth connecting arm, 32-seventh connecting arm;

[0052] 4-opening and closing system of the hopper car unloading door, 41-driving mechanism, 41a-driving seat, 41b-driving shaft, 41c-handle, 42a-first connecting arm, 42b-second connecting arm, 42b1-waist hole, 43a-guide, 43a1-guide cylinder, 43a2-window, 43b-sliding member, 43b1-roller group, 44-third connecting arm, 45a-support seat, 45a1-clamping plate, 45b-transmission member, 45b1-crank arm, 46a-fourth connecting arm, 46b-fifth connecting arm, 47a-axle seat, 47b-spindle DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0054] In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art may recognize the application of other processes and / or the use of other materials.

[0055] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0056] The bottom of the hopper car is equipped with a deflectable door panel, and the hopper car can be opened and closed by controlling the deflection of the door panel. Generally, the rotatable main shaft drives the multi-stage crank arm connecting rod mechanism to pull the door panel to deflect. However, in order to drive the main shaft to rotate, a rigidly connected transmission structure, such as a worm gear transmission mechanism, is usually used. It is easy to wear and tear, and when impacted by the door panel, it is very easy to cause mechanical damage to the precisely matched worm gear structure, threatening the functional reliability and functionality of the transmission structure, and even impacting the operator, causing safety risks.

[0057] To this end, the embodiments of the present application provide a hopper truck unloading door opening and closing system and a hopper truck, which aim to solve the technical problems that the hopper truck unloading door opening and closing system has poor impact resistance, is easily damaged and has safety risks to a certain extent.

[0058] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, a hopper car may include a car body 1, a door panel 2, a driving connecting rod 3, and a hopper car unloading door opening and closing system 4. The door panel 2 is rotatably connected to the car body 1, the hopper car unloading door opening and closing system is arranged on the car body 1, and the driving connecting rod 3 is respectively connected to the door panel 2 and the hopper car unloading door opening and closing system 4, so that by operating the hopper car unloading door opening and closing system 4, the door panel 2 is driven to deflect to control the opening and closing of the unloading port on the car body 1.

[0059] It is worth noting that the vehicle body 1 is a box-type structure with an internal loading cavity, a discharge port is provided at the bottom, and the door panel 2 is adapted to the discharge port, and can block the discharge port by deflection, and can also unblock the discharge port by deflection.

[0060] Generally speaking, there are multiple discharge ports, which are spaced apart at the bottom of the vehicle body 1 . Correspondingly, there are multiple door panels and multiple groups of driving connecting rods 3 .

[0061] In some embodiments, the door panel 2 is connected to the vehicle body 1 through a hinge assembly 21, and the hinge assembly 21 may include a hanger 211 and a deflection arm 212. The hanger 211 is installed on the vehicle body 1, and the deflection arm 212 is arranged on the door panel 2, and the deflection arm 212 is hinged to the hanger 211 to realize the deflection of the door panel 2 relative to the vehicle body 1.

[0062] Generally speaking, the deflection arm 212 has a certain length, so that the suspension seat 211 can be kept away from the discharge port of the vehicle body 1, thereby reducing the risk of the suspension seat 211 and its hinged part being impacted by materials, thereby ensuring the structural and functional reliability of the hinge assembly 21.

[0063] At the same time, since the deflection arm 212 has a certain length, the door panel 2 can be away from the discharge port after being deflected and opened, thereby reducing the risk of obstruction to the passage of materials and also reducing the friction damage of the materials to the door panel 2.

[0064] In some embodiments, considering that the deflection process of the door panel 2 is a fixed-axis deflection and the trajectory is an arc, in order to adapt to the movement mode of the door panel 2 and reduce the risk of interference between the door panel 2 and the hopper truck unloading door opening and closing system 4, the driving connecting rod 3 can be set as a two-stage connecting rod mechanism, which takes into account the transmission of torque and the adaptation to the arc trajectory of the door panel 2 through the deformation of the connecting rod.

[0065] Specifically, the driving link 3 may include a sixth connecting arm 31 and a seventh connecting arm 32, the first end of the seventh connecting arm 32 is hinged to the sixth connecting arm 31, the second end of the seventh connecting arm 32 is hinged to the door panel 2, and the sixth connecting arm 31 is connected to the hopper truck unloading door opening and closing system 4, thereby driving the sixth connecting arm 31 to move in the hopper truck unloading door opening and closing system 4, so as to drive the door panel 2 to deflect through the seventh connecting arm 32.

[0066] See also Figure 6 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 In some embodiments, the hopper truck unloading door opening and closing system 4 is configured to be installed on the hopper truck and connected to the sixth connecting arm 31 to drive the driving link 3 to move and control the opening and closing of the door panel 2.

[0067] Specifically, the hopper truck unloading door opening and closing system 4 usually needs to drive multiple groups of door panels 2 to open and close along the length side of the vehicle body 1, and the operating position is usually located on the width side of the vehicle body 1. Therefore, the transmission path of the driving torque needs to undergo multiple changes of direction and the reliability of the structure must also be taken into account.

[0068] To this end, the hopper truck unloading door opening and closing system 4 may adopt a multi-stage active transmission structure to adapt to the vehicle body width side operation and length side driving mode. The hopper truck unloading door opening and closing system 4 may include: a driving seat 41a, a driving shaft 41b, a first connecting arm 42a, a second connecting arm 42b, a guide member 43a, a sliding member 43b, a third connecting arm 44, a supporting seat 45a, a transmission member 45b, a fourth connecting arm 46a, a fifth connecting arm 46b, an axle seat 47a and a main shaft 47b.

[0069] The driving seat 41a is installed on the vehicle body 1, the driving shaft 41b is rotatably arranged in the driving seat 41a, the first end of the first connecting arm 42a is connected to the driving shaft 41b, and the second end is pivotally connected to the waist-shaped hole 42b1 opened on the second connecting arm 42b; the guide member 43a is installed on the vehicle body 1, the sliding member 43b is slidably connected to the guide member 43a, and the sliding member 43b can be hinged with the first end of the second connecting arm 42b and the first end of the third connecting arm 44 respectively. The support seat 45a is installed on the vehicle body 1, and the transmission member 45b is hinged to the support seat 45a and the second end of the third connecting arm 44 respectively; the first end of the fourth connecting arm 46a is hinged to the transmission member 45b, and the second end of the fourth connecting arm 46a is hinged to the first end of the fifth connecting arm 46b; the axle seat 47a is installed on the vehicle body 1, and the main shaft 47b is rotatably arranged in the axle seat 47a, and the main shaft 47b is connected to the second end of the fifth connecting arm 46b.

[0070] The driving seat 41a and the driving shaft 41b constitute the operating mechanism 41, and are integrally mounted on the body 1 of the hopper car, usually on the width side of the body 1. The driving seat 41a is configured as the mounting base of the operating mechanism 41, and is used to be mounted on the body 1 as a force fulcrum; the driving shaft 41b is rotatably disposed in the driving seat 41a, and the driving torque is output by rotating the driving shaft 41b. Generally speaking, a rolling support component such as a bearing can be configured in the driving seat 41a, which will not be described in detail here.

[0071] The first end of the first connecting arm 42a is connected to the driving shaft 41b, and can rotate with the driving shaft 41b to output torque. Generally speaking, the first end of the first connecting arm 42a can be directly fixed to the driving shaft 41b, such as being fastened to the driving shaft 41b by a fastener, or can be directly molded on the driving shaft 41b.

[0072] A waist-shaped hole 42b1 is provided on the second connecting arm 42b, and the waist-shaped hole 42b1 is arranged along the length direction of the second connecting arm 42b, and the waist-shaped hole 42b1 is pivotally connected to the second end of the first connecting arm 42a; thereby, the first connecting arm 42a and the second connecting arm 42b can rotate relative to each other, and can slide relative to each other along the waist-shaped hole 42b1, so that the driving mechanism 41 and other components in the hopper truck unloading door opening and closing system 4 can have a certain buffer space to reduce the impact of rigid impact.

[0073] The guide member 43a and the sliding member 43b constitute a sliding mechanism for fixed track movement, which is used to convert the torque transmitted by the first connecting arm 42a and convert it into movement along a set track, such as along a substantially straight track; wherein the sliding member 43b pushes and pulls the third connecting arm 44 to move, so as to drive the transmission member 45b to deflect relative to the support seat 45a. The fourth connecting arm 46a moves under the drive of the transmission member 45b, so as to drive the fifth connecting arm 46b to move, thereby driving the main shaft 47b to rotate.

[0074] The main shaft 47 b is rotatably disposed in the shaft seat 47 a to output torque to the driving link 3 to drive the driving link 3 to move and control the deflection of the door panel 2 .

[0075] In some embodiments, the guide member 43a may include a guide cylinder 43a1, which has a cylinder cavity inside for accommodating the sliding member 43b and guiding the sliding member 43b to move back and forth along a set trajectory to stably convert the torque from the driving mechanism 41 and ensure the stability of the movement posture and range of the second connecting arm 42b and the third connecting arm 44.

[0076] Taking into account that the second connecting arm 42b and the third connecting arm 44 have a certain length and a certain deflection amplitude, in order to avoid interference with the guide cylinder 43a1, a window 43a2 penetrating the cylinder wall can be opened on the cylinder wall of the guide cylinder 43a1 along the moving direction of the sliding member 43b, and two windows 43a2 can be provided. The second connecting arm 42b and the third connecting arm 44 can be partially embedded in the window 43a2 during the movement, thereby avoiding direct interference with the cylinder wall.

[0077] Generally speaking, the guide cylinder 43 a 1 can be directly fixed on the vehicle body 1 .

[0078] In some embodiments, in order to facilitate the movement stability of the sliding member 43b, a roller group 43b1 can be provided on the sliding member 43b, and the roller group 43b1 can be rollingly connected to the inner wall of the guide tube 43a1.

[0079] In some embodiments, the guide member 43a may also be a slide rail, and the sliding member 43b may be configured as a slider, which is movably connected to the slide rail.

[0080] In some embodiments, the axial direction of the main shaft 47b may be arranged along the length direction of the vehicle body 1, and the axial direction of the drive shaft 41b may be arranged along the width direction of the vehicle body 1. That is, the axial direction of the main shaft 47b is substantially orthogonal to the axial direction of the drive shaft 41b.

[0081] In some embodiments, the transmission member 45b can be configured as a curved arm 45b1, such as roughly V-shaped; the two ends of the curved arm 45b1 are respectively hinged to the support seat 45a and the third connecting arm 44, and the middle hinge point of the curved arm 45b1 is hinged to the first end of the fourth connecting arm 46a, so that the fourth connecting arm 46a can be connected to the middle of the curved arm 45b1 to a certain extent, and the movement of the fourth connecting arm 46a can be relatively smooth to a certain extent, avoiding impact caused by excessive speed movement.

[0082] Generally speaking, the middle portion of the curved arm 45b1 is closer to the fifth connecting arm 46b, which reduces the risk of interference between the end portion of the curved arm 45b1 and the fourth connecting arm 46a.

[0083] In some embodiments, considering that the third connecting arm 44, the transmission member 45b, the fourth connecting arm 46a and the fifth connecting arm 46b are connected in multiple stages, the large swing of posture during movement should be strictly controlled to avoid local distortion and mechanical damage.

[0084] To this end, the support seat 45a can be configured as two oppositely arranged clamping plates 45a1, and the curved arm 45b1 is arranged between the two clamping plates 45a1, so as to limit the swing amplitude of the curved arm 45b1 in the non-rotation direction to a certain extent, thereby ensuring the stability of its posture.

[0085] Generally speaking, the clamping plate 45a1 may be partially hollowed out to reduce the structural weight while taking into account the structural strength and limiting ability.

[0086] In some embodiments, the curved arm 45b1 may also be configured as a plate-like structure, which can be adapted to the shape of the two clamping plates 45a1, thereby improving the overall thickness and reducing the risk of scratching and interference between the curved arm 45b1 and the clamping plates 45a1.

[0087] In some embodiments, in order to facilitate operation, a handle 41c, such as a handle structure in the form of a hand wheel, may be connected to the driving shaft 41b.

[0088] In some embodiments, the main shaft 47b can be arranged below the bottom center line of the vehicle body 1, and the discharge port of the vehicle body 1 is arranged on both sides of the main shaft 47b. In order to adapt to the main shaft 47b, the middle part of the sixth connecting arm 31 can be fixed on the main shaft 47b, and its two ends are respectively connected to the door panel 2 through the sixth connecting arm 32.

[0089] The embodiments of the present application have at least the following beneficial effects:

[0090] The embodiment of the present application provides a hopper truck unloading door opening and closing system and a hopper truck, wherein the hopper truck unloading door opening and closing system comprises: a drive seat, a drive shaft, a first connecting arm, a second connecting arm, a guide member, a sliding member, a third connecting arm, a support seat, a transmission member, a fourth connecting arm, a fifth connecting arm, an axle seat and a main shaft; the drive seat is installed on the hopper truck as a rotation support for the drive shaft, and torque output is achieved by rotating the drive shaft; then, the sliding member is rotationally connected through a first-stage connecting rod mechanism consisting of a first connecting arm and a second connecting arm that are hinged in sequence, and the sliding member is driven to move along the guide member to convert the torque into a driving torque in a set direction; the axle seat is installed on the hopper truck as a rotation support for the main shaft, and the sliding member is connected to the main shaft through a second-stage connecting rod mechanism consisting of a fourth connecting arm and a fifth connecting arm that are hinged in sequence, thereby driving the main shaft to rotate, outputting torque, driving the door panel to deflect, and realizing the opening and closing of the hopper truck. It is worth noting that by establishing a first-stage connecting rod mechanism, a directional sliding mechanism, and a second-stage connecting rod mechanism that are connected in sequence between the rotating driving shaft and the main shaft to convert the direction and form of the torque, a stable driving structure is achieved, and a multi-stage lever principle structure can be formed based on the transmission structure of the hinged connecting rod, which can reduce the force required for the opening and closing operation to a certain extent and reduce the difficulty of operation. On the other hand, since the use of a multi-stage connecting rod and a directional sliding mechanism can utilize the movable connection structure of the multi-stage connecting rod, it has a certain amplitude of swing space and can absorb a certain degree of impact, thereby buffering the impact from the door panel to a certain extent, thereby reducing the risk of impact damage to the hopper car unloading door opening and closing system and even the hopper car as a whole, and can also reduce the safety risk of the operator to a certain extent.

[0091] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0092] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0093] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0094] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0095] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0097] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0098] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hopper truck unloading door opening and closing system, configured to be installed on a hopper truck; characterized in that: The hopper car unloading door opening and closing system comprises: A driving seat, mounted on the hopper car; a drive shaft rotatably disposed in the drive seat; A first connecting arm, a first end of which is connected to the driving shaft so as to rotate along with the driving shaft; The second connecting arm is provided with a waist-shaped hole along the length direction, and the waist-shaped hole is pivotally connected to the second end of the first connecting arm; A guide member, mounted on the hopper car; a sliding member, movably connected to the guide member, and the sliding member is hinged to one end of the second connecting arm; a third connecting arm, a first end of which is hinged to the sliding member; A support seat connected to the hopper car; A transmission member, hinged to the support seat and the second end of the third connecting arm respectively; a fourth connecting arm, a first end of which is hinged to the transmission member; a fifth connecting arm, a first end of which is hinged to the second end of the fourth connecting arm; an axle seat connected to the hopper car; A main shaft is rotatably disposed in the shaft seat, and the main shaft is connected to the second end of the fifth connecting arm so as to rotate under the drive of the fifth connecting arm.

2. The hopper car unloading door opening and closing system according to claim 1, characterized in that: The guide member includes a guide cylinder, a first window and a second window are opened on the cylinder wall of the guide cylinder, the sliding member is slidably arranged in the guide cylinder, the second connecting arm is movably embedded in the first window, and the third connecting arm is movably embedded in the second window.

3. The hopper car unloading door opening and closing system according to claim 2, characterized in that: The sliding member is provided with a roller group, and the roller group is rollingly connected to the inner wall of the guide cylinder.

4. The hopper car unloading door opening and closing system according to claim 2, characterized in that: Any two directions among the axial direction of the drive shaft, the axial direction of the main shaft, and the guiding direction of the guide member are orthogonal to each other.

5. The hopper car unloading door opening and closing system according to claim 1, characterized in that: The transmission member includes a curved arm, a first end of the curved arm is hinged to the support seat, a second end of the curved arm is hinged to the second end of the third connecting arm, and a middle portion of the curved arm is hinged to the first end of the fourth connecting arm.

6. The hopper car unloading door opening and closing system according to claim 5, characterized in that: The support seat comprises two clamping plates arranged opposite to each other, the curved arm is arranged between the two clamping plates in a deflectable manner, and the first end of the curved arm is pivotally connected to the two clamping plates.

7. The hopper car unloading door opening and closing system according to claim 5, characterized in that: At a hinge point between the second end of the crank arm and the middle of the crank arm, the second end of the crank arm is away from the fourth connecting rod.

8. The hopper car unloading door opening and closing system according to any one of claims 1 to 7, characterized in that: The driving shaft is connected with a handle.

9. A hopper car, characterized in that: include: Vehicle body; a door panel, connected to the vehicle body in a deflectable manner; A driving connecting rod, hinged to the door panel; According to the hopper car unloading door opening and closing system as described in any one of claims 1 to 8, the drive seat, the guide member, the support seat and the axle seat are installed on the hopper car, and the main shaft is connected to the driving connecting rod.

10. The hopper car according to claim 9, characterized in that: The driving connecting rod comprises: a sixth connecting arm connected to the main shaft; A seventh connecting arm has a first end hinged to the sixth connecting arm and a second end hinged to the door panel.

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