Titanium alloy gull-wing door hinge with limiting function

Abstract

The utility model discloses a titanium alloy gull wing door hinge with limiting, including fixed leaf board 1, movable leaf board, pin shaft, limiting piece and bearing sleeve. Fixed leaf board is fixed along vertical direction and is equipped with the first pin hole in the lower extreme, movable leaf board one end is fixed and is equipped with the second pin hole in the other end, bearing sleeve is fixed and is equipped in the first pin hole, the middle section of pin shaft body is fixed and is equipped in the second pin hole, both ends of rod body are located in bearing sleeve and are rotatably connected with bearing sleeve, limiting piece is fixed and is equipped in movable leaf board top, and its one end is in contact with fixed leaf board and restricts gull wing door maximum opening angle to be 70 DEG. The titanium alloy gull wing door hinge of the utility model, its components adopt titanium alloy material to make, has improved corrosion resistance, has reduced overall weight, through adopting the bearing sleeve of self -lubricating material, has improved wear resistance, makes rotation smooth, through limiting piece provides maximum rotation angle limiting function, has met the war equipment operation precision requirement.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of automobile manufacturing technology, and more specifically, relate to a titanium alloy gull-wing door hinge with a limit switch. Background Technology

[0002] To meet operational and tactical requirements, military vehicles need to use upward-opening and closing gull-wing doors to enable rapid loading and unloading of missiles and stretchers. Due to the special opening direction and operational environment limitations, the requirements for hinge connection stability, rotation smoothness, and angle controllability are far higher than those for civilian vehicle doors. Existing conventional hinges cannot meet these requirements, becoming a key factor restricting the reliable application of gull-wing doors in military scenarios.

[0003] The existing gull-wing door hinges have the following problems: (1) The hinges are made of steel, which has a high density. The paint layer is easily damaged and rusts, affecting the appearance and failing to meet the requirements of lightweight and durable combat equipment; (2) There is no lubricated bearing at the pivot, which is easy to wear and requires regular lubrication. There is a risk of jamming and it fails to meet the low maintenance requirements of combat equipment; (3) There is no limit to the position and no maximum rotation angle limit function. It is not suitable for the specific opening angle of the gull-wing door and fails to meet the operation accuracy requirements of combat equipment.

[0004] Therefore, there is an urgent need for a titanium alloy gull-wing door hinge with a limit switch, which can achieve the advantages of weight reduction, corrosion resistance, no need for regular lubrication and maintenance, smooth rotation and limit of maximum opening angle, and can meet the specific operating conditions of military gull-wing doors. Summary of the Invention

[0005] In view of the fact that existing gull-wing door hinges cannot meet the requirements of lightweight, durable, low-maintenance and opening accuracy of combat equipment, this utility model provides a titanium alloy gull-wing door hinge with limit to solve these problems.

[0006] To achieve the above objectives, this utility model provides a titanium alloy gull-wing door hinge with a limiting mechanism, comprising a fixed plate fixedly mounted vertically on the side of the vehicle roof, with a first pin hole at its lower end; a movable plate fixedly mounted at the top of the gull-wing door at its lower end, with a second pin hole at its upper end; a bearing sleeve fixedly mounted in the second pin hole, which is made of a self-lubricating material; a pin shaft rotatably mounted in the bearing sleeve in the middle section, with both ends located in the first pin hole; and a limiting member fixedly mounted on the side of the movable plate, the upper end of which abuts against the fixed plate to limit the maximum opening angle of the gull-wing door.

[0007] Furthermore, the fixed page plate, movable page plate, pin shaft, and limiting component are all made of titanium alloy.

[0008] Furthermore, the bearing sleeve is made of copper and is fixedly installed at both ends inside the second pin hole by interference fit, and its inner diameter is adapted to the pin shaft diameter.

[0009] Furthermore, the fixed plate includes an integrally formed first mounting plate, a transition baffle, and a first shaft seat.

[0010] Furthermore, the first mounting plate is a flat plate structure that fits the vehicle body. It has multiple sets of first fixing holes, and bolts are threaded through the first fixing holes to connect with the vehicle body, thereby fixing the first mounting plate to the vehicle body. The transition baffle is located at the lower end of the first mounting plate and has a trapezoidal structure that gradually thickens from the top to the bottom. The first bearing seat is located at both ends of the bottom of the transition baffle and has a first pin hole through it.

[0011] Furthermore, the movable leaf plate includes an integrally formed second mounting plate and a second bearing seat; the second mounting plate is a flat plate structure that fits against the top of the gull-wing door, and has multiple sets of second fixing holes on it. The second mounting plate is fixed to the gull-wing door by means of bolts passing through the second fixing holes and threadedly connected to the gull-wing door; the second bearing seat is fixedly located at the middle of the top of the second mounting plate, and has a second pin hole through it.

[0012] Furthermore, the limiting component includes a connecting base plate, a connecting top plate, and a vertical plate.

[0013] Furthermore, the connecting base plate is arranged along the central axis of the movable page plate and fixedly installed on the outside of the movable page plate; the vertical plate is inclined, with one end connected to the upper end of the connecting base plate and the other end connected to the upper end of the connecting top plate; the lower end of the connecting top plate is connected to the lower end of the connecting base plate.

[0014] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects: (1) The gull-wing door hinge of this utility model is made of titanium alloy material for the fixed plate, movable plate, pin shaft and limiting part. Compared with the existing steel hinge, it is lighter in weight for the same volume, which can reduce the overall load of the gull-wing door. In addition, titanium alloy has good corrosion resistance. Even if the surface paint layer is damaged, it will not rust and can maintain its appearance and structural stability for a long time.

[0015] (2) The gull wing door hinge of this utility model has lower maintenance costs and smoother rotation: the two ends of the second pin hole are equipped with bearing sleeves with self-lubricating material, which do not require regular lubrication and maintenance, reducing maintenance operations and costs; at the same time, the self-lubricating design can effectively improve wear resistance, avoid jamming caused by shaft wear, and ensure smooth rotation when the gull wing door is opened and closed.

[0016] (3) The gull wing door hinge of this utility model provides a maximum rotation angle limit function through the limiting component, which can accurately limit the opening angle of the gull wing door, fully adapt to the use conditions of military gull wing doors for specific opening angles, and meet the operational precision requirements of combat equipment.

[0017] (4) The gull-wing door hinge of this utility model ensures the overall performance of the hinge from three aspects: material, rotation and function, through the structural stability of titanium alloy material, the smooth rotation characteristics of self-lubricating bearing sleeve and the angle control function of limiting structure, avoiding safety hazards caused by rust, jamming and angle loss of control, and ensuring the safety and reliability of gull-wing door during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a titanium alloy gull-wing door hinge with a limiting mechanism in an embodiment of this utility model. Figure 2 This is an exploded structural diagram of the hinge in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the fixed page plate in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the movable page in an embodiment of the present utility model; Figure 5 This is a schematic diagram illustrating the installation and rotation of the hinge in an embodiment of this utility model.

[0019] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-fixed blade, 101-first mounting plate, 102-transition baffle, 103-first shaft seat, 104-first fixing hole, 105-first pin hole, 2-movable blade, 201-second mounting plate, 202-second shaft seat, 203-second fixing hole, 204-second pin hole, 3-pin, 4-limiting component, 401-connecting base plate, 402-connecting top plate, 403-vertical plate, 5-bearing sleeve. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] like Figure 1-5As shown, this utility model provides a titanium alloy gull-wing door hinge with a limiting mechanism, including a fixed leaf plate 1, a movable leaf plate 2, a pin 3, a limiting component 4, and a bearing sleeve 5. The fixed leaf plate 1 is fixedly mounted vertically on the side of the vehicle roof, and its lower end is provided with a first pin hole 105; the lower end of the movable leaf plate 2 is fixedly mounted on the top of the gull-wing door, and its upper end is provided with a second pin hole 204; the bearing sleeve 5 is fixedly mounted in the second pin hole 204 and is made of a self-lubricating material; the middle section of the pin 3 is rotatably mounted in the bearing sleeve 5, and both ends of the pin 3 are positioned in the first pin hole 105; the limiting component 4 is fixedly mounted on the side of the movable leaf plate 2, and its upper end abuts against the fixed leaf plate 1 to limit the maximum opening angle of the gull-wing door. The titanium alloy gull-wing door hinge of this utility model is made of titanium alloy for the fixed leaf plate 1, movable leaf plate 2, pin shaft 3, and limiting component 4, which improves corrosion resistance and reduces overall weight. The bearing sleeve 5, which uses self-lubricating material, improves wear resistance, makes rotation smooth, and is convenient, safe and reliable to use. The limiting component 4 provides a maximum rotation angle limit function, which meets the operation accuracy requirements of combat equipment.

[0022] like Figure 3 As shown, the fixed plate 1 is fixedly mounted vertically on the side of the vehicle roof, and includes an integrally formed first mounting plate 101, a transition baffle 102, and a first bearing seat 103. The first mounting plate 101 is a flat plate structure that fits the vehicle body. Further, the first mounting plate 101 has multiple sets of first fixing holes 104, and bolts are threaded through the first fixing holes 104 to connect with the vehicle body, thereby fixing the first mounting plate 101 to the vehicle body. The transition baffle 102 is located at the lower end of the first mounting plate 101 and has a trapezoidal structure that gradually thickens from the upper end to the lower end. The first bearing seat 103 is located at both ends of the bottom of the transition baffle 102 and is used to achieve hinge connection with the movable plate 3. Further, the first bearing seat 103 has a through first pin hole 105, which is fixedly connected to the end of the pin shaft 3 by an interference fit.

[0023] like Figure 4As shown, the movable leaf plate 2 is fixedly mounted on the top of the gull-wing door, and includes an integrally formed second mounting plate 201 and a second bearing seat 202. The second mounting plate 201 is a flat plate structure that fits against the top of the gull-wing door. Further, the second mounting plate 201 has multiple sets of second fixing holes 203, and bolts are threadedly connected to the gull-wing door through the second fixing holes 203, thereby fixing the second mounting plate 201 to the gull-wing door. The second bearing seat 202 is fixedly mounted at the middle of the top of the second mounting plate 201, and a second pin hole 204 is provided through it. Bearing sleeves 5 are fixedly mounted at both ends of the second pin hole 204. The bearing sleeves 5 are connected to the middle section of the pin shaft 3 and are made of self-lubricating material to improve wear resistance and make the movable leaf plate 2 rotate smoothly. Preferably, the bearing sleeves 5 are made of copper material and are fixedly mounted at both ends of the second pin hole 204 by interference fit, and their inner diameter is adapted to the diameter of the pin shaft 3.

[0024] The middle section of the pin shaft 3 is rotatably disposed in the second pin hole 204, and both ends are fixedly connected to the first pin hole 105.

[0025] like Figure 4 As shown in the embodiment of this utility model, when the limiting member 4 rotates with the movable leaf plate 2, it abuts against the transition baffle 102 of the fixed leaf plate 1, so that the maximum opening angle of the gull-wing door is 70°; the limiting member 4 is fixedly disposed on the side of the movable leaf plate 2, including a connecting bottom plate 401, a connecting top plate 402 and a vertical plate 403; wherein, the connecting bottom plate 401 is arranged along the central axis of the movable leaf plate 2 and fixedly disposed on the outside of the movable leaf plate 2, which acts as a reinforcing rib and improves the structural strength of the movable leaf plate 2; The vertical plate 403 is inclined, with one end connected to the upper end of the connecting base plate 401 and the other end connected to the upper end of the connecting top plate 402. When the gull-wing door is closed, the vertical plate 403 forms an angle of 70° with the transition baffle 102. The lower end of the connecting top plate 402 is connected to the lower end of the connecting base plate 401, thereby forming a triangular structure for the limiting member 4, which enhances the structural stability of the limiting member 4. Compared with a solid limiting structure, it greatly reduces its own weight, which is conducive to meeting the lightweight requirements of combat equipment.

[0026] The gull-wing door hinge of this utility model is made of titanium alloy, with the fixed leaf plate 1, movable leaf plate 2, pin 3, and limiting component 4 all made of titanium alloy. Compared with existing steel hinges, it is lighter in weight for the same volume, which can reduce the overall load of the gull-wing door. In addition, titanium alloy has good corrosion resistance, and it will not rust even if the surface paint layer is damaged, so it can maintain its appearance and structural stability for a long time.

[0027] The new gull-wing door hinge has lower maintenance costs and smoother rotation: the two ends of the second pin hole are equipped with bearing sleeves made of self-lubricating material, eliminating the need for regular lubrication and reducing maintenance operations and costs; at the same time, the self-lubricating design can effectively improve wear resistance, avoid jamming caused by shaft wear, and ensure smooth rotation when the gull-wing door opens and closes.

[0028] The new gull-wing door hinge provides a maximum rotation angle limit function through a limiting component, which can accurately limit the opening angle of the gull-wing door, fully adapting to the specific opening angle usage conditions of military gull-wing doors and meeting the operational precision requirements of combat equipment.

[0029] This utility model of a gull-wing door hinge, through the structural stability of titanium alloy material, the smooth rotation characteristics of self-lubricating bearing sleeve, and the angle control function of limiting structure, ensures the overall performance of the hinge from three aspects: material, rotation, and function. It avoids safety hazards caused by rust, jamming, and angle loss of control, and ensures the safety and reliability of gull-wing door during use.

[0030] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A titanium alloy gull-wing door hinge with limiting function, characterized in that, include: A fixed leaf plate (1) is fixedly installed on the side of the roof of the vehicle in a vertical direction, and a first pin hole (105) is provided at its lower end. The lower end is fixed to the top of the gull-wing door, and the upper end is provided with a second pin hole (204). The bearing sleeve (5) is fixedly installed in the second pin hole (204) and is made of self-lubricating material; The middle section of the rod body is rotatably mounted in the bearing sleeve (5) with the pin (3) at both ends located in the first pin hole (105); And a limiting member (4) fixed on the side of the movable leaf plate (2), the upper end of which abuts against the fixed leaf plate (1) to limit the maximum opening angle of the gull wing door.

2. The titanium alloy gull-wing door hinge with limiting function according to claim 1, characterized in that, The fixed leaf plate (1), movable leaf plate (2), pin (3), and limiting component (4) are all made of titanium alloy.

3. A titanium alloy gull-wing door hinge with limiting function according to claim 1, characterized in that, The bearing sleeve (5) is made of copper and is fixed at both ends inside the second pin hole (204) by interference fit. Its inner diameter is adapted to the diameter of the pin shaft (3).

4. A titanium alloy gull-wing door hinge with limiting function according to any one of claims 1-3, characterized in that, The fixed plate (1) includes an integrally formed first mounting plate (101), a transition baffle (102), and a first bearing seat (103).

5. A titanium alloy gull-wing door hinge with limiting function according to claim 4, characterized in that, The first mounting plate (101) is a flat plate structure that fits the vehicle body. It has multiple sets of first fixing holes (104) on it. The first mounting plate (101) is fixed to the vehicle body by bolts passing through the first fixing holes (104) and threadedly connected to the vehicle body. The transition baffle (102) is located at the lower end of the first mounting plate (101). It is a trapezoidal structure that gradually thickens from the upper end to the lower end. The first axle seats (103) are located at both ends of the bottom of the transition baffle (102), and first pin holes (105) are provided through them.

6. A titanium alloy gull-wing door hinge with limiting function according to any one of claims 1-3, characterized in that, The movable leaf plate (2) includes an integrally formed second mounting plate (201) and a second bearing (202); the second mounting plate (201) is a flat plate structure that fits against the top of the gull-wing door and has multiple sets of second fixing holes (203) on it. The second mounting plate (201) is fixed to the gull-wing door by means of bolts passing through the second fixing holes (203) and threadedly connected to the gull-wing door; the second bearing (202) is fixedly located at the middle of the top of the second mounting plate (201) and has a second pin hole (204) through it.

7. A titanium alloy gull-wing door hinge with limiting function according to any one of claims 1-3, characterized in that, The limiting component (4) includes a connecting base plate (401), a connecting top plate (402), and a vertical plate (403).

8. A titanium alloy gull-wing door hinge with limiting function according to claim 7, characterized in that, The connecting base plate (401) is arranged along the central axis of the movable page plate (2) and fixed on the outside of the movable page plate (2); the vertical plate (403) is inclined, with one end connected to the upper end of the connecting base plate (401) and the other end connected to the upper end of the connecting top plate (402); the lower end of the connecting top plate (402) is connected to the lower end of the connecting base plate (401).

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