Forged hinge for tool box of commercial vehicle
By designing the movable page board for forging hinges for commercial vehicle toolboxes, including connecting sections, curved sections and extension sections, the problem that existing hinges cannot meet the motion opening requirements and insufficient strength of toolboxes with irregular shapes and high opening requirements is solved. , achieves a significant improvement in the accuracy and strength of the hinge, reduces the risk of sagging and water leakage, and improves the appearance matching effect.
Patent Information
- Application Number
- CN202420191312.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-01-26
AI Technical Summary
The existing commercial vehicle toolbox hinges cannot meet the movement and opening requirements of toolboxes with irregular shapes and high opening requirements, and insufficient strength causes the toolbox to sag, leak water, and poor appearance matching.
A commercial vehicle tool box forging hinges was designed. The movable page board includes connecting segments, curved segments and extension segments. Through the design of these segments, the dimensions of the hinge length direction are greatly increased, reducing the length of the non-hinged position on the end face of the tool box, and The installation stiffness and strength of the hinge are improved through the wavy design of the curved surface segment and the local thickening design of the extension segment.
This hinge can meet the motion opening requirements of toolboxes with irregular shapes and high opening requirements, improves the accuracy and strength of the hinge, reduces the risk of sagging and water leakage, and improves the appearance matching effect.
Smart Images
Figure CN222526071U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connecting pieces, in particular to a forged hinge for a tool box of a commercial vehicle. Background Art
[0002] Commercial vehicle toolbox hinges often use stamped hinges. This type of hinge is generally composed of an existing movable leaf plate 1', an existing fixed leaf plate 2', an existing bolt 3', an existing pin 4', and an existing bushing 5'. The existing fixed leaf plate 2' and the existing movable leaf plate 1' are stamped, the existing bolt 3' is riveted to the existing fixed leaf plate 2', and the existing fixed leaf plate 2' and the existing movable leaf plate 1' are riveted through the existing bushing 5' and the existing pin 4'. This type of hinge has poor assembly accuracy, low rigidity, and limited layout. The above hinge structure is shown in the figure below. Figure 1 shown.
[0003] The above hinges are suitable for toolboxes with regular shapes and low opening requirements. For toolboxes with irregular shapes and high opening requirements in recent years, the above hinges cannot meet the requirements for toolbox movement and opening; at the same time, the strength of the above hinges is average, and the toolbox is prone to sagging, water leakage, poor appearance matching and other problems caused by insufficient hinge strength. The above hinges and axis arrangements are as follows: Figure 2 shown. Utility Model Content
[0004] The purpose of the utility model is to provide a forged hinge for a commercial vehicle tool box to solve the problems existing in the above-mentioned prior art, meet the requirements for the movement and opening of tool boxes with irregular shapes and high opening requirements, and at the same time greatly improve the hinge accuracy and strength.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides a forged hinge for a tool box of a commercial vehicle, comprising a movable page plate and a fixed page plate, the movable page plate comprising a connecting section, a curved section and an extending section, one end of the connecting section is rotatably connected to one end of the fixed page plate, the other end of the connecting section is connected as a whole with one end of the curved section, the other end of the curved section is connected as a whole with one end of the extending section, the other end of the extending section extends in a direction away from the fixed page plate, and the extending section is connected to a mounting point on the side of the tool box, the curved section is wavy, and the width of the movable page plate is less than the width of the existing movable page plate.
[0007] Preferably, the fixed page plate and the connecting section are connected via a pin, and a bushing is provided on the outer periphery of the pin.
[0008] Preferably, the connecting section is inclined relative to the end surface of the tool box, and an end of the connecting section away from the fixed page plate extends toward the direction approaching the tool box.
[0009] Preferably, in the direction from approaching to away from the connecting section, the curved section first bends downward and then bends upward to form a concave inflection point for abutting against the end surface of the tool box, and the end of the curved section connected to the extension section is a thickened end, and the thickness of the thickened end is greater than the thickness of the extension section.
[0010] Preferably, the extension section is provided with two circular holes for connecting to the end surface of the tool box, and a connecting line between the two circular holes is parallel to the length direction of the extension section.
[0011] Preferably, the movable page plate and the fixed page plate are both made of aluminum alloy.
[0012] Compared with the prior art, the utility model has achieved the following technical effects:
[0013] The utility model provides a forged hinge for a commercial vehicle tool box, and the movable page plate includes a connecting section, a curved section and an extension section. One end of the connecting section is rotatably connected to one end of the fixed page plate, the other end of the connecting section is connected to one end of the curved section as a whole, the other end of the curved section is connected to one end of the extension section as a whole, and the other end of the extension section extends in a direction away from the fixed page plate. Through the above design, the length direction dimension of the entire hinge is greatly increased, thereby reducing the length of the non-hinge position on the end surface of the tool box. The extension section is connected to the mounting point on the side of the tool box, and the curved section is wavy. The wavy shape can form an inward concave design, which can meet the problem of interference between the side enclosure and the tool box with irregular shape and high opening requirements during movement. The width of the movable page plate is smaller than the width of the existing movable page plate, and then when the size of the tool box is certain, the distance between adjacent hinges is increased. Through the improvement of the two dimensions, the installation rigidity of the tool box assembly is improved, the risk of sagging is reduced, and the quality problems such as water leakage and poor appearance matching are effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a structural schematic diagram of an existing tool box hinge;
[0016] Figure 2 It is a schematic diagram of the arrangement of the existing tool box hinge;
[0017] Figure 3 It is a parts diagram of a forged hinge for a commercial vehicle tool box provided by the utility model;
[0018] Figure 4 It is an assembly diagram of a forged hinge for a commercial vehicle tool box provided by the utility model;
[0019] Figure 5 It is a schematic diagram of the forged hinge of a commercial vehicle tool box provided by the utility model when it is installed on the tool box;
[0020] In the figure: 1'-existing movable leaf plate, 2'-existing fixed leaf plate, 3'-existing bolt, 4'-existing pin shaft, 5'-existing bushing, 1-movable leaf plate, 11-connecting section, 12-curved section, 13-extension section, 14-concave inflection point, 15-thickened end 15, 2-fixed leaf plate, 3-round hole, 4-pin shaft, 5-bushing, 6-side enclosure, 7-tool box. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] The purpose of the utility model is to provide a forged hinge for a commercial vehicle tool box to solve the technical problems that the existing hinges cannot meet the requirements of the movement and opening of tool boxes with irregular shapes and high opening requirements, as well as the tool box drooping, water leakage and poor appearance matching caused by insufficient hinge strength.
[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0024] like Figure 2-Figure 5 As shown, this embodiment provides a forged hinge for a tool box of a commercial vehicle, comprising a movable page plate 1 and a fixed page plate 14, wherein the movable page plate 1 comprises a connecting section 11, a curved section 12 and an extending section 13, wherein one end of the connecting section 11 is rotatably connected to one end of the fixed page plate 14, the other end of the connecting section 11 is integrally connected to one end of the curved section 12, the other end of the curved section 12 is integrally connected to one end of the extending section 13, and the other end of the extending section 13 extends in a direction away from the fixed page plate 14, thereby greatly increasing the lengthwise dimension of the entire hinge through the above design, i.e. Figure 4 The L value in increases, thereby reducing the length of the non-hinge position on the end surface of the tool box 7, that is, Figure 5The B value in the embodiment is reduced, which solves the problem that the toolbox 7 is prone to interfere with the side enclosure 6 during movement when the toolbox 7 has an irregular shape and a high opening requirement due to the small L value of the existing hinge. The extension section 13 is connected to the side mounting point of the toolbox 7, and the curved section 12 is wavy, which can form a concave design, and can meet the problem that the toolbox 7 with an irregular shape and a high opening requirement interferes with the side enclosure 6 during movement. The width of the movable leaf plate 1 is smaller than the width of the existing movable leaf plate 1', and then when the size of the toolbox 7 is constant, the distance between adjacent hinges is increased, that is, Figure 5 The A value in the embodiment increases, and thus the hinge in the Y direction is larger and the X direction is smaller, thereby reducing the B value and increasing the A value, thereby improving the installation rigidity of the tool box 7, reducing the risk of sagging, and effectively solving quality problems such as water leakage and poor appearance matching.
[0025] Specifically, the fixed page plate 14 and the connecting section 11 are connected via a pin shaft 4 , and a bushing 5 is sleeved on the outer periphery of the pin shaft 4 to ensure that the fixed page plate 14 and the movable page plate 1 can rotate relative to each other.
[0026] The connecting section 11 is inclined relative to the end face of the tool box 7 , and the angle between the connecting section and the end face of the tool box 7 is an obtuse angle. The end of the connecting section 11 away from the fixed page plate 14 extends toward the tool box 7 and away from the fixed page plate 14 .
[0027] In the direction from approaching to away from the connecting section 11, the curved section 12 first bends downward and then bends upward to form a concave inflection point 14 for abutting against the end face of the tool box 7. The concave inflection point 14 is bent toward the inner side of the tool box 7, which can prevent the tool box 7 with irregular shape and high opening requirements from interfering with the side enclosure 6 during movement. The end of the curved section 12 connected to the extension section 13 is a thickened end 15. The thickness of the thickened end 15 is greater than that of the extension section 13. The local thickening design is used for strength compensation to ensure the overall strength of the component and avoid stress concentration problems caused by insufficient structural strength due to structural mutations at the concave inflection point 14.
[0028] The extension section 13 is provided with two circular holes 3 for connecting to the end surface of the tool box 7 , and the line between the two circular holes 3 is parallel to the length direction of the extension section 13 , that is, the line between the two circular holes 3 is parallel to the Y axis.
[0029] The movable leaf plate 1 and the fixed leaf plate 14 are both forged from aluminum alloy, which improves strength and reduces weight at the same time.
[0030] The specific manufacturing process of this embodiment is: cutting → heating → forging → pickling → machining → flaw detection → rough machining → heat treatment → fine machining → flaw detection → physical and chemical → pickling → surface passivation → final inspection → warehousing. The application of lightweight materials and processes has achieved a certain lightweight effect.
[0031] Anti-electrochemical corrosion solution for the installation of aluminum alloy hinges and steel side panels 6: After the hinges are electrophoresed separately (the paint film thickness is required to be 20-30μm), the hinges are installed on the side panels 6 and then electrophoresed as a whole for a second time, which effectively solves the electrochemical corrosion problem of dissimilar metal connections.
[0032] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of the utility model. At the same time, for those skilled in the art, according to the idea of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.
Claims
1. A forged hinge for a commercial vehicle tool box, characterized in that: It includes a movable page plate and a fixed page plate, the movable page plate includes a connecting section, a curved section and an extension section, one end of the connecting section is rotatably connected to one end of the fixed page plate, the other end of the connecting section is connected to one end of the curved section as a whole, the other end of the curved section is connected to one end of the extension section as a whole, the other end of the extension section extends in a direction away from the fixed page plate, and the extension section is connected to the mounting point on the tool box side, and the curved section is wavy.
2. The forged hinge for a commercial vehicle tool box according to claim 1, characterized in that: The fixed page plate and the connecting section are connected via a pin shaft, and a bushing is sleeved around the outer periphery of the pin shaft.
3. The forged hinge for a commercial vehicle tool box according to claim 1, characterized in that: The connecting section is arranged to be inclined relative to the end surface of the tool box, and an end of the connecting section away from the fixed page plate extends toward a direction close to the tool box.
4. The forged hinge for a commercial vehicle tool box according to claim 3, characterized in that: In the direction from approaching to moving away from the connecting section, the curved section first bends downward and then bends upward to form a concave inflection point for abutting against the end surface of the tool box, and the end of the curved section connected to the extension section is a thickened end, and the thickness of the thickened end is greater than the thickness of the extension section.
5. The forged hinge for a commercial vehicle tool box according to claim 1, characterized in that: The extension section is provided with two circular holes for connecting to the end surface of the tool box, and the connecting line between the two circular holes is parallel to the length direction of the extension section.
6. The forged hinge for a commercial vehicle tool box according to claim 1, characterized in that: The movable page plate and the fixed page plate are both made of aluminum alloy material.