KR20090069674A - Cargo onboard door's up and down automatic opening and shutting device - Google Patents

Cargo onboard door's up and down automatic opening and shutting device Download PDF

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Publication number
KR20090069674A
KR20090069674A KR1020070137412A KR20070137412A KR20090069674A KR 20090069674 A KR20090069674 A KR 20090069674A KR 1020070137412 A KR1020070137412 A KR 1020070137412A KR 20070137412 A KR20070137412 A KR 20070137412A KR 20090069674 A KR20090069674 A KR 20090069674A
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KR
South Korea
Prior art keywords
door
rack gear
opening
lower door
closing
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KR1020070137412A
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Korean (ko)
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이세영
이동규
박지선
김민영
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(주)삼우이엠씨
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Priority to KR1020070137412A priority Critical patent/KR20090069674A/en
Publication of KR20090069674A publication Critical patent/KR20090069674A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/20—Refrigerated goods vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00—Securing or covering of load on vehicles
    • B60P7/02—Covering of load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/145—Haulage vehicles, trailing trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/04—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

A vertical automatic opening/closing device of a deck door is provided to prevent a door which is held up upward from falling down due to weight or wind by lifting an upper door through using a lower door as a lever. A vertical automatic opening/closing device of a deck door comprises: a deck door divided into an upper door(102) and a lower door(103); a pinion gear(107) fixed to a hinge(105) of a lower door; a rack gear(106) vertically sliding along the side wall of the deck; a rod(108) coupled on the front end of the rack gear; and a fixing unit(110) fixing the lower door to be horizontal to the floor of the deck. The rack gear is glided according to rotation of the pinion gear.

Description

화물적재함 도어의 상·하 자동개폐장치{Cargo onboard door's up and down automatic opening and shutting device}Cargo onboard door's up and down automatic opening and shutting device}

본 발명은 화물차량용 적재함 도어 개폐장치에 관한 것으로 특히 냉동식품 운반차량과 같이 밀폐공간의 화물적재함을 갖는 차량에 있어서 렉과 피니언기어를 이용하여 도어를 상·하로 개폐가능하게 함으로서 적재함에 화물을 상·하차 하는 작업공간을 줄일 수 있게 하고 도어의 개폐를 용이하게 할 수 있게 하는 것에 관한 것이다.The present invention relates to a storage box door opening and closing device for a cargo vehicle, particularly in a vehicle having a cargo storage space of a closed space, such as a frozen food transport vehicle, by using the rack and pinion gear to open and close the door up and down by loading the cargo into the loading box. · It is possible to reduce the work area for getting off and to facilitate the opening and closing of the door.

일반적으로 냉동운반차와 같은 밀폐된 적재함을 갖는 화물차량은 차량의 적재함 후면을 개폐할 수 있도록 구성되어 있으며 도어의 개폐는 도어의 상·하로 중앙부가 분리되고, 분리된 두 부분의 양측이 각기 적재함의 단부와 힌지결합되어 도어를 개방할 때에는 중앙부의 잠금수단을 해제하고 두 부분을 좌·우로 각각 개방하였다.In general, a cargo vehicle having a sealed loading box such as a freezing truck is configured to open and close the rear of the loading box of the vehicle, and the opening and closing of the door is separated by the upper and lower centers of the door, and the two sides of the separated two parts are loaded respectively. When the door is hinged to the end of the door, the locking means in the center is released, and the two parts are opened to the left and right respectively.

이와 같은 좌·우 개방식은 적재함양측으로 도어가 개방됨에 따라 도어의 폭 만큼 적재함의 폭이 증가되어 화물의 상·하역시 필요한 작업공간이 커지게 되고 개방된 도어가 바람 등에 의하여 움직이지 않도록 하는 고정수단을 구비하는데 어려움이 있었다.As the door is opened to both sides of the loading compartment, the width of the loading compartment increases by the width of the door, thereby increasing the working space required for loading and unloading the cargo, and fixing the door so that it does not move due to wind. There was a difficulty in providing the means.

이에 따라 KR실용신안공개 제1994-0015643(1994.07.19공개)호에서는 도 1에 도시된 것과 같이 '힌지(12)로 결합된 고정도어(20)와 슬라이딩도어(30)와 이 슬라이딩도어(30)가 안내되어 화물용 적재함이 개폐되는 것에 있어서, 일측이 상호 힌지(12) 결합된 고정도어(20)와 슬라이딩도어(30)가 구비되고, 상기 고정도어(20)는 적재함(10)에 힌지(22) 결합하고, 슬라이딩도어(30)는 안내수단(40)에 의해 적재함에 안내됨과 동시에 일측에는 적재함에 제공된 걸림편(14)에 걸리게 되는 걸림고리(32)를 구성함을 특징으로 하는 도어개폐장치'를 제안하여 화물의 상·하역시 도어가 적재함측면으로 돌출되지 않도록 하여 작업반경을 최소화하고 작업능률을 향상시킴과 동시에 도어의 개폐 및 고정을 용이하게 할 수 있도록 한 것이 있었다.Accordingly, KR Utility Model Publication No. 194-0015643 (published on July 19, 1994) shows a fixed door 20 and a sliding door 30 coupled with a hinge 12 and the sliding door 30 as shown in FIG. In the guide to open and close the cargo stacker, a fixed door 20 and a sliding door 30, one side of which is hinged to each other is provided, the fixed door 20 is hinged to the stacker (10) (22) door, characterized in that the sliding door 30 is guided to the loading box by the guide means 40 and at the same time constitutes a hooking ring 32 to be caught on the locking piece 14 provided in the loading box on one side. The 'opening and closing device' was proposed to minimize the working radius and improve the work efficiency and to facilitate the opening and closing of the door by preventing the door from protruding to the side of the loading box during loading and unloading of cargo.

그러나 상기와 같은 구성은 무거운 중량을 갖는 도어를 개폐하는데 상당한 힘이 들고 접철된 도어가 적재함의 내부일측에 위치함에 따라 화물을 상·하차 하는데 걸림요인이 되어 폭이 넓은 화물의 상·하차에 어려움이 있었다.However, the above configuration has considerable power to open and close the door having a heavy weight, and the folded door is located on one side of the loading box, which makes it difficult to load and unload cargo. There was this.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로 도어의 개방시 적재함의 좌·우로 돌출됨이 없이 상·하로 개폐가 가능하게 하고, 보다 적은 힘으로도 개폐할 수 있도록 렉과 피니언 및 하부도어를 지렛대로 이용하여 상부도어를 들어올릴 수 있게 하면서 상부로 들어올려진 개방된 도어가 자중이나 바람 등에 의하여 낙하하지 않게 하는 상·하 개폐식 화물적재함 도어개폐장치를 제공하는 것을 목적으로 한다.The present invention is to solve the above problems and to open and close the top and bottom without protruding to the left and right of the loading box when the door is opened, and to open and close the rack and pinion and the lower door to open and close with less force. It is an object of the present invention to provide a top and bottom open and closed cargo storage door opening and closing device which can lift an upper door using a lever and prevent the open door lifted from the top from falling down due to its own weight or wind.

본 발명은 화물적재함 도어를 개폐함에 있어서 도어가 적재함의 폭을 초과하지 않아 협소한 주차공간에서도 상·하차 작업을 가능하게 하고, 개방된 도어가 자중이나 바람 등에 의하여 낙하하거나 움직이지 않도록 고정이 용이할 뿐 아니라 상당한 중량을 가진 도어를 적은 힘으로도 용이하게 개폐할 수 있게 하고, 개방된 도어가 화물의 상·하차 작업에 장애요인이 되지 않게 하는 효과가 있다.The present invention allows the door to open and unload even in a narrow parking space because the door does not exceed the width of the loading box in opening and closing the cargo storage door, and is easy to be fixed so that the open door does not fall or move due to its own weight or wind. In addition, the door having a considerable weight can be easily opened and closed with a small force, and the open door does not become an obstacle for loading and unloading cargo.

본 발명은 화물차량의 적재함 후면 도어를 상부도어와 하부도어로 분리하고 상부도어는 적재함의 상부에 구비된 힌지를 중심으로 상부방향으로 개방되게 하고, 하부도어는 적재함의 하부에 구비된 힌지를 중심으로 아래쪽으로 개방되게 구성한다.The present invention separates the rear door of the loading compartment of the cargo vehicle into the upper door and the lower door, and the upper door is opened upwardly based on the hinge provided at the upper part of the loading box, and the lower door is centered on the hinge provided at the lower part of the loading box. To open downward.

상부도어와 하부도어의 높이는 대략 2:1정도가 되게 구성하며, 도어를 상·하부 방향으로 개폐하기 위하여는 적재함의 측벽 단부에 랙기어가 상·하로 슬라이딩 가능하게 구비되고, 하부도어의 힌지축에는 피니언기어가 고정되어 랙기어와 치합되게 형성된다.The height of the upper door and the lower door is approximately 2: 1, and in order to open and close the door in the upper and lower directions, the rack gear is provided to be slidable up and down at the end of the side wall of the loading box, and the hinge shaft of the lower door is The pinion gear is fixed to the rack gear.

하부도어가 적재함 아래쪽으로 개방되면 하부도어의 힌지핀에 고정된 피니언기어가 하부도어를 따라 회동하면서 랙기어를 밀어올리고, 적재함의 위쪽으로 밀어올려지는 랙기어의 선단부에는 랙기어와 상부도어를 연결하는 로드가 핀으로 결합되어 있어 밀어올려지는 랙기어에 의하여 로드가 상부도어를 위쪽으로 개방되게 한다.When the lower door is opened under the loading box, the pinion gear fixed to the hinge pin of the lower door rotates along the lower door to push up the rack gear, and the rack gear and the upper door are connected to the front end of the rack gear that is pushed upward of the loading box. The rod is coupled to the pin so that the rod is opened upward by the rack gear pushed up.

이때 하부도어를 적재함의 바닥면과 수평이 되게 하면 상부도어는 적재함의 수직면에 대하여 45°정도 반개되게 하며 하부도어가 적재함의 바닥면과 90°가 되게 아래쪽으로 향하면 상부도어는 적재함의 바닥면과 나란하게 수평면으로 완전 개방되게 구성한다.At this time, if the lower door is level with the bottom of the loading box, the upper door is made to be reversed by 45 ° with respect to the vertical plane of the loading box, and when the lower door is lowered 90 ° with the bottom of the loading box, the upper door is Configure them to be fully open side by side in a horizontal plane.

이하에서 본 발명의 바람직한 실시 예에 대하여 첨부한 도면을 참조하여 상 세하게 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명 화물적재함 도어의 상·하 자동개폐장치의 정면도이며, 도 3은 도 1의 측단면도이고, 도 4는 도 2 적재함 상부도어가 45°반개된 상태도이며, 도 5는 도 2의 적재함 상부도어가 90°개방된 상태도이고, 도 6은 하부도어와 피니언기어 및 랙기어가 결합되는 부분평단면도이다.Figure 2 is a front view of the upper and lower automatic opening and closing device of the cargo loading door of the present invention, Figure 3 is a side cross-sectional view of Figure 1, Figure 4 is a state diagram of the upper door of Figure 2 loading box 45 °, Figure 5 The upper box of the loading door is a 90 degrees open state, Figure 6 is a partial cross-sectional view of the lower door and the pinion gear and rack gear is coupled.

도면에 도시된 바와 같이 본 발명은 화물차량의 적재함 후면도어 또는 측면도어에 적용이 가능하나 본 실시 예에서는 후면도어를 중심으로 설명하기로 한다.As shown in the drawings, the present invention can be applied to the rear door or the side door of the cargo box of the freight vehicle, but the present invention will be described with reference to the rear door.

적재함(101)의 후면에 구비되는 도어는 상부도어(102)와 하부도어(103)로 분리되어 장착되며, 상·하부도어(102, 103)의 높이는 대략 2:1정도가 되게 하는 것이 바람직하다.The door provided at the rear of the loading box 101 is separated into the upper door 102 and the lower door 103, and the height of the upper and lower doors 102 and 103 is preferably about 2: 1. .

상부도어(102)는 적재함(101) 상부측벽(104)에 힌지(105)로 결합되며, 하부도어(103)는 적재함(101)의 하부측벽(104)에 힌지(105)로 결합되어 각각 상·하방향으로 회동가능하게 구성된다.The upper door 102 is coupled to the upper side wall 104 of the stacker 101 by a hinge 105, and the lower door 103 is coupled to the lower side wall 104 of the stacker 101 by a hinge 105, respectively. It is configured to be able to rotate downward.

상·하부도어(103, 104)를 적재함(101)의 상·하부로 각각 개폐하기 위하여 적재함(101)의 측벽(104) 단부에는 랙기어(106)가 적재함(101)에 대하여 상·하로 슬라이딩 가능한 상태로 구비되며, 랙기어(106)에는 피니언기어(107)가 치합된다.In order to open and close the upper and lower doors 103 and 104 to the upper and lower portions of the loading box 101, the rack gear 106 slides up and down with respect to the loading box 101 at the end of the side wall 104 of the loading box 101. It is provided in a possible state, the pinion gear 107 is meshed with the rack gear 106.

피니언기어(107)는 하부도어(103)의 힌지(105)축에 고정되어 하부도어(103)의 개폐동작에 따라 회동하며 피니언기어(107)의 회동동작에 따라 랙기어(106)는 적재함(101) 측벽(104)을 따라 상·하로 슬라이딩한다.The pinion gear 107 is fixed to the hinge 105 shaft of the lower door 103 and rotates according to the opening and closing operation of the lower door 103, and the rack gear 106 is loaded according to the rotation operation of the pinion gear 107 ( 101) It slides up and down along the side wall 104.

피니언기어(107)의 회동에 따라 상부방향으로 밀어올려지는 랙기어(106)의 선단부는 상부도어(102)와 로드(108)로 연결되며, 로드(108)는 랙기어(106) 및 상부도어(102)와 회동이 가능하게 핀(109)으로 고정되어 있다.The tip of the rack gear 106, which is pushed upwards according to the rotation of the pinion gear 107, is connected to the upper door 102 and the rod 108, and the rod 108 is the rack gear 106 and the upper door. It is fixed by the pin 109 so that rotation with 102 is possible.

하부도어(103)가 개방되면서 하부도어(103)의 힌지(105)축에 고정되어 있는 피니언기어(107)가 회동하게 되면 피니언기어(107)와 치합되는 랙기어(106)는 적재함(101)의 위쪽으로 밀려 올라가면서 랙기어(106)의 선단에 결합되어 있는 로드(108)를 밀어올리고, 로드(108)는 적재함(101)에 힌지(105)로 고정되어 있는 상부도어(102)를 힌지(105)를 중심으로 위쪽으로 들어올려 개방한다.When the lower door 103 is opened and the pinion gear 107 fixed to the hinge 105 shaft of the lower door 103 is rotated, the rack gear 106 engaged with the pinion gear 107 is loaded (101). While pushing upwards, the rod 108 coupled to the distal end of the rack gear 106 is pushed up, and the rod 108 hinges the upper door 102 fixed to the storage box 101 by a hinge 105. Open up by lifting upwards about (105).

상부도어(102)는 하부도어(103)의 개방각도에 연동되어 개방각도를 조절할 수 있다.The upper door 102 may be linked to the opening angle of the lower door 103 to adjust the opening angle.

즉, 하부도어(103)가 닫혀진 상태에서 90°회동하여 적재함(101)의 바닥면과 나란한 상태로 개방되면 상부도어(102)는 수직면에 대하여 45°반개되며, 하부도어(103)가 닫혀진 상태에서 180°회동하여 적재함(101)의 바닥면과 90°를 이루면 상부도어(102)는 적재함(101)의 바닥면과 나란한 상태로 완전개방된다.That is, when the lower door 103 is closed and opened 90 degrees in parallel with the bottom surface of the loading box 101, the upper door 102 is opened by 45 ° with respect to the vertical plane, and the lower door 103 is closed. At 180 ° rotates at 90 ° with the bottom surface of the stacker 101, the upper door 102 is completely opened in parallel with the bottom surface of the stacker 101.

본 발명은 하부도어(103)의 자체중량과 하부도어(103)를 지렛대로 이용하여 하부도어(103)의 힌지(105)에 결합되어 있는 피니언기어(107)를 회동시켜 상부도어(102)를 개폐하므로 적은 힘으로도 상·하부도어(102, 103)를 용이하게 개폐할 수 있으며 하부도어(103)에 외력을 가하지 않는 상태에서는 상부도어(102)의 자체중량에 의하여 하부도어(103)는 개방되지 않는다.The present invention rotates the upper door 102 by rotating the pinion gear 107 coupled to the hinge 105 of the lower door 103 using the weight of the lower door 103 and the lower door 103 as a lever. Since the upper and lower doors 102 and 103 can be easily opened and closed with a small force, and the lower door 103 is opened by its own weight of the upper door 102 in the state that no external force is applied to the lower door 103. It is not open

또한 본 발명의 구성은 적재함(101)의 후면도어와 함께 적재함(101)의 측면에도 설치할 수가 있어 적재함(101)의 3면에 상·하 개폐식 도어를 구비하게 하는 것도 가능하다.In addition, the configuration of the present invention can be installed on the side of the stacking box 101 with the rear door of the stacking box 101, it is also possible to have the top and bottom opening and closing doors on the three sides of the stacking box 101.

또한 하부도어(103)의 개방각도를 조절하여 고정할 수 있게 하기 위하여는 하부도어(103)와 적재함(101)의 측벽(104)을 체인 등으로 연결하고 고리로 걸리게 하여 하부도어(103)의 개폐각도를 90°로 고정될 수 있게 하는 고정장치(110)를 구비하는 것이 바람직하다.In addition, in order to adjust and fix the opening angle of the lower door 103, the lower door 103 and the side wall 104 of the loading box 101 are connected by a chain or the like, and hooked by a ring, It is preferable to have a fixing device 110 to allow the opening and closing angle to be fixed to 90 °.

또한 하부도어(103)의 상부쪽으로 하부도어(103)의 가장자리를 따라 위쪽으로 굴곡진 요홈을 형성하여 하부도어(103)개방시 파지할 수 있는 파지용 요홈(111)을 형성할 수도 있다.In addition, by forming an upwardly curved groove along an edge of the lower door 103 toward the upper side of the lower door 103, a gripping groove 111 that can be gripped when the lower door 103 is opened may be formed.

본 발명의 적재함 상·하 자동개폐장치는 밀폐된 적재함을 갖는 화물차량의 후면 또는 측면도어용에 적용이 가능하다.The upper and lower automatic loading and closing device of the present invention is applicable to the rear or side door of a freight vehicle having a sealed loading box.

도 1은 공개실용신안 제1994-0015643호의 작동상태를 보인 평면도1 is a plan view showing the operating state of the Utility Model No. 1994-0015643

도 2는 본 발명 화물적재함 도어의 상·하 자동개폐장치의 정면도Figure 2 is a front view of the upper and lower automatic opening and closing device of the cargo loading door of the present invention

도 3은 도 1의 측단면도3 is a side cross-sectional view of FIG.

도 4는 도 2 적재함 상부도어가 45°반개된 상태도4 is a state in which the upper door of the loading box of FIG.

도 5는 도 2의 적재함 상부도어가 90°개방된 상태도5 is a state in which the upper door of the loading box of Figure 2 is opened 90 °

도 6은 하부도어와 피니언기어 및 랙기어가 결합되는 부분평단면도6 is a partial cross-sectional view of the lower door and the pinion gear and the rack gear are combined;

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

101. 적재함 102. 상부도어101. Loading box 102. Upper door

103. 하부도어 104. 측벽103. Lower door 104. Sidewalls

105. 힌지 106. 랙기어105. Hinge 106. Rack Gear

107. 피니언기어 108. 로드107. Pinion Gear 108. Rod

109. 핀 110. 고정장치109. Pin 110. Retention Mechanism

111. 파지용 요홈111. Gripping groove

Claims (2)

화물차량의 적재함 도어를 개폐하는 장치에 있어서,In the device for opening and closing the loading compartment door of the freight vehicle, 적재함 도어를 상부도어(102)와 하부도어(103)로 분리하고, 하부도어(103)의 힌지(105) 축에는 피니언기어(107)를 고정하고 적재함(101)의 측벽(104)을 따라 상·하로 슬라이딩 가능하게 구성된 랙기어(106)와 치합되게 하여 하부도어(103)의 개폐동작에 따라 피니언기어(107)와 치합된 랙기어(106)를 밀어올려 랙기어(106)의 선단에 결합된 로드(108)에 의하여 상부도어(102)를 위쪽으로 개방되게 구성한 것을 특징으로 하는 화물적재함 도어의 상·하 자동개폐장치.The stacker door is separated into the upper door 102 and the lower door 103, and the pinion gear 107 is fixed to the hinge 105 axis of the lower door 103, and the upper door 102 is positioned along the sidewall 104 of the stacking box 101. Engage with the rack gear 106 configured to slide downward, and push the rack gear 106 engaged with the pinion gear 107 in accordance with the opening and closing operation of the lower door 103 to be coupled to the front end of the rack gear 106. The upper and lower automatic opening and closing device of the cargo loading door, characterized in that the upper door 102 is configured to open upward by the loaded rod 108. 제 1항에 있어서, 하부도어(103)의 개폐각도를 적재함(101)의 바닥면과 수평이 되게 고정하는 고정장치(110)를 구비한 것을 특징으로 하는 화물적재함 도어의 상·하 자동개폐장치.The upper and lower automatic opening and closing devices of the cargo loading door according to claim 1, further comprising a fixing device (110) which fixes the opening and closing angle of the lower door (103) to be parallel to the bottom surface of the storage box (101). .
KR1020070137412A 2007-12-26 2007-12-26 Cargo onboard door's up and down automatic opening and shutting device KR20090069674A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105270236A (en) * 2015-10-22 2016-01-27 瑞安市阀门一厂 Opener for hydraulic sealed cover of dumper
KR20190030493A (en) 2017-09-14 2019-03-22 주식회사 선광코리아 Endgate of a freight car
CN111775802A (en) * 2020-06-10 2020-10-16 江苏鸿昌特种车辆有限公司 Emergency guarantee vehicle capable of realizing efficient loading and unloading of materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105270236A (en) * 2015-10-22 2016-01-27 瑞安市阀门一厂 Opener for hydraulic sealed cover of dumper
KR20190030493A (en) 2017-09-14 2019-03-22 주식회사 선광코리아 Endgate of a freight car
CN111775802A (en) * 2020-06-10 2020-10-16 江苏鸿昌特种车辆有限公司 Emergency guarantee vehicle capable of realizing efficient loading and unloading of materials

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