Automobile trunk hinge

Abstract

This utility model relates to the field of automotive hinge technology, and more particularly to automotive trunk hinges. Its technical solution includes: an arched arm with a positioning hole and a protective sleeve; the protective sleeve has a first mounting groove and a second mounting groove; a first fixing mechanism is provided in the first mounting groove, and a second fixing mechanism is provided in the second mounting groove, both of which are used to connect the protective sleeve to the arched arm; a connecting block is installed on the arched arm, and mounting plates are fixedly installed at both ends of the connecting block, with connecting screws inside the mounting plates; the first fixing mechanism includes a fixing frame, and a first fixing pin is welded to the fixing frame. This utility model meets the requirements for use in automotive trunk hinges. During use, the fixing mechanism is located inside the protective sleeve, avoiding protrusions that may affect subsequent installation and use, and disassembly is possible simply by pulling after installation.

Description

Technical Field

[0001] This utility model relates to the field of automotive hinge technology, specifically to automotive trunk hinges. Background Technology

[0002] Hinges, as important mechanical devices that connect two solids and enable relative rotation, are widely used in various devices. Taking the automotive industry as an example, the hinge between the trunk lid and the trunk typically uses an arc-shaped hinge structure. The working principle of this structure is as follows: one end of the arc-shaped arm forms a rotatable connection with a connector fixedly installed on the side panel of the trunk, while the other end is firmly connected to the trunk lid. When downward pressure is applied to the trunk lid, the arc-shaped arm drives the side panel of the trunk to rotate hingedly, thereby allowing the trunk lid to smoothly rotate to the trunk, achieving the closing operation of the trunk opening.

[0003] A search revealed that patent CN216076763U discloses a stable opening and closing car trunk hinge. While this device simplifies the installation process by pressing the two ends of the protective block against the ends of the bow-shaped arm, improving ease of installation, its fixing mechanism is located on the outside of the protective cover, resulting in a protruding shape after installation. This not only hinders the installation of other components but also causes inconvenience during use. Furthermore, due to structural design issues, disassembly is difficult, making it unsuitable for maintenance and replacement. Therefore, it is necessary to improve and optimize the existing bow-shaped hinge structure for car trunk lids. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an automotive trunk hinge, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A car trunk hinge includes an arc-shaped arm with a positioning hole and a protective sleeve.

[0007] The protective sleeve is provided with a first mounting groove and a second mounting groove;

[0008] The first mounting slot is provided with a first fixing mechanism, and the second mounting slot is provided with a second fixing mechanism. Both the first fixing mechanism and the second fixing mechanism are used to connect the protective sleeve to the bow-shaped arm.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, a connecting block is installed on the bow-shaped arm, and mounting plates are fixedly installed at both ends of the connecting block, with connecting screws inside the mounting plates.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] As a key component connecting the bow-shaped arm to other parts of the luggage, the connecting block has mounting plates at both ends that, together with connecting screws, enable a secure assembly with the side panel connectors or the luggage lid.

[0013] Furthermore, the first fixing mechanism includes a fixing frame, on which a first fixing pin is welded, and the first fixing pin slides through the protective sleeve and is slidably fitted inside the bow-shaped arm.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The first fixing pin penetrates the protective sleeve and engages with the bow-shaped arm to form a mechanical locking structure, firmly securing the protective sleeve to the bow-shaped arm. This effectively prevents the protective sleeve from loosening or shifting during the opening and closing of the luggage compartment lid, improving the overall structural reliability. Furthermore, this plug-in fixing method, installed within the first mounting slot, avoids creating a protruding structure on the outside of the protective sleeve compared to traditional external bolt fixing. This prevents interference with the installation of other components inside the luggage compartment and also reduces the risk of scratching luggage items or the operator.

[0016] Furthermore, the fixing frame is connected to the first mounting groove via a first spring, and a second guide rod is fixedly installed on the inner wall of the fixing frame. A first guide rod is slidably sleeved on the second guide rod, and the end of the first guide rod facing away from the second guide rod is fixedly installed in the first mounting groove.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] In its natural state, the first spring is under tension, generating a continuous pulling force that drives the fixing bracket, causing the first fixing pin to move into the pre-set mounting hole on the bow-shaped arm. This ensures the first fixing pin is securely engaged within the bow-shaped arm, enhancing the tightness and stability of the connection between the protective sleeve and the bow-shaped arm. Simultaneously, the guiding structure formed by the first and second guide rods provides precise guidance for the movement of the fixing bracket, preventing it from shifting or jamming under spring tension and ensuring the first fixing pin can be accurately and smoothly inserted into the bow-shaped arm. When disassembling the protective sleeve, simply overcome the tension of the first spring and pull the fixing bracket outwards to disengage the first fixing pin from the bow-shaped arm, easily separating the protective sleeve from the bow-shaped arm. This greatly improves the ease of disassembly and meets the practical needs of maintenance and replacement.

[0019] Furthermore, the second fixing mechanism includes a connecting plate, on which a second fixing pin is welded, and the second fixing pin slides through the protective sleeve and is fitted inside the bow-shaped arm.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The second fixing pin, together with the first fixing pin, forms a two-point fixing structure, further enhancing the reliability of the connection between the protective cover and the bow-shaped arm, dispersing the stress generated when the trunk lid is opened and closed, and preventing the protective cover from loosening due to excessive local stress. At the same time, the second fixing pin also adopts a through-type insertion design and is installed in the second mounting groove, ensuring that the outer surface of the protective cover is flat and does not affect the normal assembly and use of other components inside the trunk.

[0022] Furthermore, the connecting plate is connected to the second mounting groove via a second spring, and a second limiting rod is fixedly installed on the inner wall of the connecting plate. A first limiting rod is slidably sleeved on the second limiting rod, and the end of the first limiting rod facing away from the second limiting rod is fixedly installed in the second mounting groove.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The second spring operates on a similar principle to the first spring. In its natural state, it generates tension through stretching, continuously pulling the connecting plate to securely engage the second fixing pin within the pre-set mounting hole on the bow-shaped arm, ensuring a firm and reliable connection between the protective sleeve and the bow-shaped arm. The guide and limiting structure formed by the first and second limiting rods not only ensures the smooth movement of the connecting plate under spring tension, allowing the second fixing pin to accurately insert into the bow-shaped arm, but also limits the range of movement of the connecting plate, preventing excessive movement that could damage the structure. When disassembling the protective sleeve, the operator can simultaneously operate the first and second fixing mechanisms to overcome the spring tension and disengage the fixing pin from the bow-shaped arm, achieving rapid disassembly of the protective sleeve and significantly improving maintenance efficiency.

[0025] This utility model provides a car trunk hinge. It has the following beneficial effects:

[0026] The first and second fixing pins penetrate the protective sleeve and slide inside the first and second mounting slots. Compared with the existing device where the fixing mechanism is located on the outside of the protective sleeve and has a protruding shape, the improved protective sleeve has a flat outer surface, which avoids interference with other components inside the suitcase, eliminates obstacles to the installation of subsequent components, significantly improves space compatibility, and ensures the smooth installation of various components inside the suitcase.

[0027] Quick disassembly is achieved through a design that combines springs and a guide structure. The first and second springs generate tension in their natural state, ensuring a secure engagement of the retaining pin. During disassembly, simply overcome the spring tension to pull the fixing bracket and connecting plate, causing the retaining pin to disengage from the bow-shaped arm, thus easily separating the protective sleeve from the bow-shaped arm. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0029] In the attached diagram:

[0030] Figure 1 This is a front view schematic diagram of the present invention;

[0031] Figure 2 This is a side view of the present invention;

[0032] Figure 3 This is an enlarged schematic diagram of the first fixing mechanism of this utility model;

[0033] Figure 4 This is an enlarged schematic diagram of the second fixing mechanism of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Bow-shaped arm; 101. Positioning hole; 102. Connecting block; 103. Mounting plate; 104. Connecting screw; 2. Protective sleeve; 201. First mounting groove; 202. Second mounting groove; 3. First fixing mechanism; 301. Fixing bracket; 302. First fixing pin; 303. First guide rod; 304. First spring; 305. Second guide rod; 4. Second fixing mechanism; 401. Connecting plate; 402. Second fixing pin; 403. First limiting rod; 404. Second spring; 405. Second limiting rod. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0038] Example: A car trunk hinge, including an arc arm 1, a positioning hole 101 on the arc arm 1, and a protective sleeve 2 on the arc arm 1;

[0039] The protective sleeve 2 has a first mounting groove 201 and a second mounting groove 202.

[0040] The first mounting slot 201 is provided with a first fixing mechanism 3, and the second mounting slot 202 is provided with a second fixing mechanism 4. Both the first fixing mechanism 3 and the second fixing mechanism 4 are used to connect the protective sleeve 2 to the bow-shaped arm 1.

[0041] A connecting block 102 is installed on the bow-shaped arm 1. Mounting plates 103 are fixedly installed on both ends of the connecting block 102. The mounting plates 103 are provided with connecting screws 104. The connecting block 102 is a key component for connecting the bow-shaped arm 1 with other parts of the luggage. The mounting plates 103 at both ends, together with the connecting screws 104, can achieve a stable assembly with the side panel connector or the lid of the luggage.

[0042] The first fixing mechanism 3 includes a fixing frame 301, on which a first fixing pin 302 is welded. The first fixing pin 302 penetrates the protective sleeve 2 and slides into the bow-shaped arm 1. The first fixing pin 302 penetrates the protective sleeve 2 and cooperates with the bow-shaped arm 1 to form a mechanical snap-fit ​​structure, which firmly fixes the protective sleeve 2 to the bow-shaped arm 1, effectively preventing the protective sleeve 2 from loosening or shifting during the opening and closing of the luggage compartment lid, thus improving the reliability of the overall structure. In addition, this plug-in fixing method and installation in the first mounting groove 201, compared with the traditional external bolt fixing, will not form a protruding structure on the outside of the protective sleeve 2, avoiding interference with the installation of other components inside the luggage compartment, and also reducing the risk of scratching luggage items or operators.

[0043] The fixing frame 301 is connected to the first mounting groove 201 via a first spring 304. A second guide rod 305 is fixedly installed on the inner wall of the fixing frame 301. A first guide rod 303 is slidably sleeved on the second guide rod 305. The end of the first guide rod 303 facing away from the second guide rod 305 is fixedly installed in the first mounting groove 201. The first spring 304 is in a stretched state under its natural state, and the resulting tension can continuously pull the fixing frame 301, thereby driving the first fixing pin 302 to move into the preset mounting hole of the bow-shaped arm 1. This ensures that the first fixing pin 302 is firmly engaged in the bow-shaped arm 1, enhancing the tightness and stability of the connection between the protective sleeve 2 and the bow-shaped arm 1. At the same time, the guide structure formed by the first guide rod 303 and the second guide rod 305 can provide precise guidance for the movement of the fixing frame 301, preventing the fixing frame 301 from shifting or jamming under the action of spring tension, and ensuring that the first fixing pin 302 can be accurately and smoothly inserted into the bow-shaped arm 1. When disassembling the protective sleeve 2, simply overcome the tension of the first spring 304 to pull the fixing bracket 301 outward, so that the first fixing pin 302 disengages from the bow-shaped arm 1, and the protective sleeve 2 and the bow-shaped arm 1 can be easily separated, which greatly improves the convenience of disassembly and meets the actual needs of maintenance and replacement.

[0044] The second fixing mechanism 4 includes a connecting plate 401, on which a second fixing pin 402 is welded. The second fixing pin 402 passes through the protective sleeve 2 and is slidably sleeved inside the bow-shaped arm 1. The second fixing pin 402 and the first fixing pin 302 form a double-point fixing structure, which further enhances the reliability of the connection between the protective sleeve 2 and the bow-shaped arm 1, disperses the stress generated when the luggage compartment lid is opened and closed, and prevents the protective sleeve 2 from loosening due to excessive local stress. At the same time, the second fixing pin 402 also adopts a through-type insertion design and is installed in the second mounting groove 202 to ensure that the outer surface of the protective sleeve 2 is flat and does not affect the normal assembly and use of other components inside the luggage compartment.

[0045] The connecting plate 401 is connected to the second mounting groove 202 via a second spring 404. A second limiting rod 405 is fixedly installed on the inner wall of the connecting plate 401. A first limiting rod 403 is slidably sleeved on the second limiting rod 405. The end of the first limiting rod 403 facing away from the second limiting rod 405 is fixedly installed in the second mounting groove 202. The working principle of the second spring 404 is similar to that of the first spring 304. In its natural state, it generates tension through stretching, continuously pulling the connecting plate 401, so that the second fixing pin 402 is firmly engaged in the preset mounting hole of the bow-shaped arm 1, ensuring that the connection between the protective sleeve 2 and the bow-shaped arm 1 is firm and reliable. The guide limiting structure formed by the first limiting rod 403 and the second limiting rod 405 not only ensures that the connecting plate 401 moves smoothly under the action of spring tension, allowing the second fixing pin 402 to be accurately inserted into the bow-shaped arm 1, but also limits the range of movement of the connecting plate 401, preventing excessive movement that could cause structural damage. When disassembling the protective sleeve 2, the operator can simultaneously operate the first fixing mechanism 3 and the second fixing mechanism 4 to overcome the spring tension and disengage the fixing pin from the bow-shaped arm 1, thereby achieving rapid disassembly of the protective sleeve 2 and greatly improving maintenance efficiency.

[0046] Working principle:

[0047] When the protective sleeve 2 is fitted onto the bow-shaped arm 1

[0048] The fixing frame 301 is connected to the first mounting groove 201 via the first spring 304. The first spring 304 is in a stretched state in its natural state, generating a pulling force to move the fixing frame 301 toward the bow arm 1.

[0049] The first fixing pin 302 on the fixing bracket 301 passes through the first mounting groove 201 of the protective sleeve 2 and is inserted into the bow-shaped arm 1 to form a mechanical snap-fit, thereby fixing the protective sleeve 2 on the bow-shaped arm 1.

[0050] The second guide rod 305 on the inner wall of the fixing frame 301 is slidably sleeved on the first guide rod 303. The first guide rod 303 is fixed in the first mounting groove 201 to form a guide structure, ensuring that the fixing frame 301 does not deviate or jam when it moves, and ensuring that the first fixing pin 302 is accurately inserted into the positioning hole 101.

[0051] To overcome the pulling force of the first spring 304, the fixing bracket 301 needs to be pulled outward to disengage the first fixing pin 302 from the bow-shaped arm 1, thereby separating the protective sleeve 2 from the bow-shaped arm 1.

[0052] The connecting plate 401 is connected to the second mounting groove 202 via the second spring 404. The second spring 404 is stretched in its natural state, pulling the connecting plate 401 toward the bow arm 1.

[0053] The second fixing pin 402 on the connecting plate 401 passes through the second mounting groove 202 of the protective sleeve 2 and is inserted into the bow-shaped arm 1, forming a double-point fixation with the first fixing pin 302.

[0054] The second limiting rod 405 on the inner wall of the connecting plate 401 is slidably sleeved on the first limiting rod 403. The first limiting rod 403 is fixed in the second mounting groove 202, which limits the movement range of the connecting plate 401, ensures that the second fixing pin 402 is smoothly inserted into the bow arm 1, and prevents excessive movement from damaging the structure.

[0055] Simultaneously operating the first fixing mechanism 3 and the second fixing mechanism 4 overcomes the tension of the first spring 304 and the second spring 404, causing the first fixing pin 302 and the second fixing pin 402 to simultaneously disengage from the bow-shaped arm 1, thereby achieving rapid disassembly of the protective sleeve 2.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A car trunk hinge, comprising an arc-shaped arm (1), wherein the arc-shaped arm (1) has a positioning hole (101) and a protective sleeve (2) is provided on the arc-shaped arm (1), characterized in that: The protective sleeve (2) is provided with a first mounting groove (201) and a second mounting groove (202); The first mounting slot (201) is provided with a first fixing mechanism (3), and the second mounting slot (202) is provided with a second fixing mechanism (4). Both the first fixing mechanism (3) and the second fixing mechanism (4) are used to connect the protective sleeve (2) to the bow arm (1).

2. The automotive trunk hinge of claim 1, wherein: A connecting block (102) is installed on the bow-shaped arm (1), and mounting plates (103) are fixedly installed at both ends of the connecting block (102). Connecting screws (104) are provided inside the mounting plates (103).

3. The automotive trunk hinge of claim 1, wherein: The first fixing mechanism (3) includes a fixing frame (301), on which a first fixing pin (302) is welded. The first fixing pin (302) passes through the protective sleeve (2) and is slidably sleeved inside the bow-shaped arm (1).

4. The automotive trunk hinge of claim 3, wherein: The fixing frame (301) is connected to the first mounting groove (201) via the first spring (304). A second guide rod (305) is fixedly installed on the inner wall of the fixing frame (301). A first guide rod (303) is slidably sleeved on the second guide rod (305). One end of the first guide rod (303) away from the second guide rod (305) is fixedly installed in the first mounting groove (201).

5. The automotive trunk hinge of claim 1, wherein: The second fixing mechanism (4) includes a connecting plate (401), on which a second fixing pin (402) is welded. The second fixing pin (402) passes through the protective sleeve (2) and is slidably sleeved inside the bow-shaped arm (1).

6. The automotive trunk hinge of claim 5, wherein: The connecting plate (401) is connected to the second mounting groove (202) via the second spring (404). A second limiting rod (405) is fixedly installed on the inner wall of the connecting plate (401). A first limiting rod (403) is slidably sleeved on the second limiting rod (405). One end of the first limiting rod (403) away from the second limiting rod (405) is fixedly installed in the second mounting groove (202).

Images