A lock catch, a lock catch connection structure and a vehicle

Abstract

The application belongs to the technical field of vehicle sealing, and discloses a lock catch, a lock catch connecting structure and a vehicle, wherein the lock catch comprises a mounting seat and a lock catch body, the lock catch body is arranged on the mounting seat, the mounting seat is arranged on a vehicle body and can form a glue containing cavity together with the vehicle body, the mounting seat is provided with a glue injection hole, a glue outlet hole and a connecting hole, the glue injection hole, the glue outlet hole and the connecting hole are all arranged in communication with the glue containing cavity, then after the lock catch is mounted on the vehicle body, sealing glue can be injected into the glue containing cavity through the glue injection hole to increase the sealing property between the lock catch and the vehicle body, ensure the service life and safety of the vehicle, and when the sealing glue is injected into the glue containing cavity, the cavity wall of the glue containing cavity can block the sealing glue to avoid the sealing glue overflowing to the outside of the mounting seat, thereby improving the production quality of the vehicle on one hand and avoiding the waste of the sealing glue on the other hand to reduce the installation cost of the lock catch.

Description

Technical Field

[0001] This application belongs to the technical field of vehicle sealing, specifically relating to a latch, a latch connection structure, and a vehicle. Background Technology

[0002] An automobile is a non-rail-mounted vehicle driven by a power unit and having multiple wheels. It is mainly used to carry people and goods and is one of the most important means of transportation in modern society. The latch is a key component of the automobile door lock system. It is responsible for firmly locking the doors, trunk lid or hood to ensure safety during driving and prevent illegal intrusion.

[0003] Currently, common locking mechanisms generally include a mounting base and a locking mechanism body located on the mounting base. The mounting base has connecting holes for bolts to pass through, allowing the locking mechanism to be fixed to the vehicle body with bolts. However, after the locking mechanism is installed on the vehicle body, there are tiny gaps between the mounting base and the vehicle body, as well as between the bolts and the walls of the connecting holes. This allows rainwater or moisture to enter the vehicle body through these gaps in rainy or humid environments, or through the gaps between the bolts and the walls of the connecting holes, as well as through the corresponding bolt holes on the vehicle body. This makes the interior of the vehicle body prone to rust, thus affecting the vehicle's service life and safety.

[0004] To improve the sealing between the mounting bracket and the vehicle body, as well as the sealing between the bolt and the wall of the connecting hole, one might think of applying sealant to the vehicle body or mounting bracket before installing the latch, and then fixing the latch to the vehicle body with bolts. However, during the installation of the latch, the bolts exert pressure on the mounting bracket, causing the sealant between the mounting bracket and the vehicle body to be squeezed to the outside of the mounting bracket. This results in a waste of sealant, increases the installation cost of the latch, and affects the production quality of the vehicle. Utility Model Content

[0005] This application provides a latch to avoid waste of sealant, reduce the installation cost of the latch, and ensure the production quality of the vehicle.

[0006] The technical solution adopted in this application is as follows:

[0007] A latch includes a mounting base and a latch body disposed on the mounting base. The mounting base is used to be disposed on a vehicle body and can form an adhesive cavity together with the vehicle body. The mounting base has a first end and a second end opposite to the first end. The mounting base is provided with an injection hole at the first end, an outlet hole at the second end, and a connecting hole between the first end and the second end. The injection hole, the outlet hole, and the connecting hole are all connected to the adhesive cavity.

[0008] By adopting the above technical solution, when installing the latch in this application, first align the latch with the position on the vehicle body where the latch needs to be installed, and then install the bolt so that the bolt thread passes through the connecting hole and is connected to the vehicle body thread. The bolt head is used to press the mounting seat to fix the latch to the vehicle body.

[0009] Because the latch is installed on the vehicle body, the latch and the vehicle body together form a cavity for sealing. The injection hole is connected to the cavity, allowing sealant to be injected into it. This sealant fills and seals the gap between the mounting bracket and the vehicle body, increasing the airtightness between them. This prevents rainwater, moisture, and other liquids or gases from entering the vehicle body through the gaps or the holes for bolts, thus preventing internal corrosion and ensuring the vehicle's lifespan and safety.

[0010] Because the connecting hole is connected to the sealant cavity, when sealant is added to the sealant cavity through the injection hole, the sealant can flow to the connecting hole. This allows the sealant flowing to the connecting hole to seal the gap between the bolt and the connecting hole, increasing the sealing performance between the bolt and the connecting hole. This further prevents rainwater, water vapor, and other liquids or gases from entering the vehicle body through the gap between the bolt and the connecting hole, as well as the holes in the vehicle body through which the bolts pass. This further prevents potential corrosion inside the vehicle body, thus ensuring the vehicle's service life and safety, and improving the user's driving experience.

[0011] Because the mounting base is equipped with a dispensing hole that communicates with the sealant cavity, it allows air in the cavity to escape through the dispensing hole when sealant is added through the injection hole. This reduces the pressure during sealant addition, simplifies the process, and improves the smoothness and efficiency of sealant application. Furthermore, during sealant addition, once the sealant reaches the dispensing hole, it can be dispensed... The overflow hole prevents sealant from overflowing from the periphery of the mounting base. The sealant overflowing from the outlet hole facilitates cleaning compared to overflowing from the periphery of the mounting base. Furthermore, observing whether sealant overflows from the outlet hole allows for the determination of the amount of sealant added to the sealant cavity, ensuring that the cavity is completely filled. This further guarantees the seal between the mounting base and the vehicle body, as well as the seal between the bolts and the connecting holes.

[0012] Furthermore, since the latch in this application is installed on the vehicle body, a cavity for sealing glue is formed between the mounting base and the vehicle body. When sealant is added to the cavity through the injection hole, the cavity wall can block the sealant to prevent it from overflowing on the side of the mounting base. This ensures the cleanliness of the latch mounting position on the vehicle body, thereby ensuring the production quality of the vehicle and improving the user experience.

[0013] As more and more sealant is added to the cavity, it flows toward the outlet under pressure. Since the injection hole is located at the first end of the mounting base, the outlet hole is located at the second end, and the connection hole is located between the first and second ends, the sealant must fill the connection hole before overflowing through the outlet hole to ensure the seal between the bolt and the connection hole, thereby further ensuring the service life and safety of the vehicle.

[0014] Meanwhile, since the latch in this application can increase the sealing between the latch and the vehicle body and increase the sealing between the bolt and the connecting hole, it can also ensure that the end face of the mounting seat facing the vehicle body is relatively dry, so as to avoid the possible corrosion of the latch, thereby ensuring the service life of the latch and the safety of the vehicle with the latch in this application installed.

[0015] Furthermore, the sealant added to the cavity seals the mounting base and the vehicle body, as well as the bolts and the wall of the connecting hole, preventing dust or noise from entering the vehicle and improving the vehicle's sound insulation and sealing effect, thereby further enhancing the user's driving experience.

[0016] In addition, since the sealant added to the cavity can flow to the connection hole and seal the gap between the hole wall and the bolt, the sealant can also increase the stability of the bolt, thereby increasing the connection stability between the bolt and the vehicle body, avoiding the risk of the bolt loosening, and thus ensuring the stability of the bolt's fixation to the latch.

[0017] Optionally, the glue-containing cavity includes a first glue-containing cavity and a second glue-containing cavity that are independent of each other. The first glue-containing cavity is disposed around the second glue-containing cavity, and the second glue-containing cavity is disposed around the connecting hole and communicates with the connecting hole. The glue injection hole and the glue outlet hole are both communicated with the first glue-containing cavity.

[0018] By adopting the above technical solution, since the first and second adhesive chambers are independent of each other, the adhesive chamber is divided into multiple isolated small cavities. This reduces the injection pressure when adding sealant to the adhesive chamber, thereby reducing the difficulty of adding sealant and improving the smoothness and efficiency of adding sealant. Compared with a solution where the adhesive chamber is a large cavity, it can also reduce the amount of sealant used while ensuring the sealing between the mounting base and the vehicle body and the sealing between the bolt and the connecting hole, thus further reducing the installation cost of the latch.

[0019] Since the second adhesive cavity surrounds and communicates with the connecting hole, the sealant added to the second adhesive cavity can be used to seal the gap between the bolt and the connecting hole. The first adhesive cavity surrounds the second adhesive cavity, so the sealant added to the first adhesive cavity can be used to seal the gap between the mounting bracket and the vehicle body. Furthermore, since both the injection hole and the outlet hole are communicated with the first adhesive cavity, sealant can be added to the first adhesive cavity through the injection hole, thus reducing the difficulty of adding sealant to the first adhesive cavity.

[0020] Optionally, the first end is located below the second end.

[0021] By adopting the above technical solution, since the first end is located below the second end, the injection hole is located below the outlet hole. This allows the air in the cavity to be completely expelled by the weight of the sealant and the squeezing force of the sealant injection equipment when adding sealant to the cavity. This ensures the density of the sealant added to the cavity and avoids the situation where gas exists in the sealant after it has been added to the cavity, which would affect the sealing effect between the sealant and the mounting bracket and the vehicle body, as well as the sealing effect between the bolt and the vehicle body. This ensures the sealing effect between the sealant and the mounting bracket and the vehicle body, as well as the sealing effect between the bolt and the connecting hole.

[0022] Optionally, the mounting base has a mounting surface on the side opposite to the latch body, the mounting surface having a first sealing rib for contacting the vehicle body, the first sealing rib extending circumferentially along the mounting base.

[0023] By adopting the above technical solution, since the mounting surface has a first sealing rib that extends along the circumference of the mounting seat, and the mounting seat is then installed on the vehicle body, a cavity for adhesive can be formed between the mounting surface and the vehicle body under the action of the first sealing rib, thereby reducing the production difficulty of the mounting seat.

[0024] Optionally, the mounting surface has a second sealing rib for contacting the vehicle body, the second sealing rib extending circumferentially along the connecting hole and located inside the first sealing rib.

[0025] By adopting the above technical solution, since the mounting surface has a second sealing rib, the second sealing rib extends circumferentially along the connecting hole and is located inside the first sealing rib, and then after the mounting seat is installed on the vehicle body, a second adhesive cavity can be formed between the mounting surface and the vehicle body under the action of the second sealing rib, and a first adhesive cavity is formed between the first sealing rib and the second sealing rib, thereby further reducing the production difficulty of the mounting seat.

[0026] Optionally, the mounting base has a mounting area, the latch body is disposed in the mounting area, the mounting surface is provided with a third sealing rib for contacting the vehicle body, the third sealing rib extends circumferentially along the mounting area, and the third sealing rib is located inside the first sealing rib.

[0027] By adopting the above technical solution, since the mounting surface is provided with a third sealing rib, which extends circumferentially along the mounting area and is located inside the first sealing rib, after the mounting seat is installed on the vehicle body, a sealed cavity independent of the adhesive cavity can be formed between the mounting seat and the vehicle body under the action of the third sealing rib. This prevents the sealant from entering the sealed cavity when sealant is added to the adhesive cavity through the injection hole, thereby reducing the amount of sealant used and further reducing the installation cost of the latch. At the same time, it can also seal and isolate the connection position between the latch body and the mounting seat from other positions on the mounting seat to prevent rainwater, water vapor, or other liquids or other substances from entering the vehicle body through the connection position between the latch body and the mounting seat.

[0028] Optionally, the width of the first sealing rib is gradually reduced along the direction away from the mounting surface;

[0029] And / or, the width of the second sealing rib is gradually reduced along the direction away from the mounting surface;

[0030] And / or, the width of the third sealing rib is gradually reduced along the direction away from the mounting surface.

[0031] By adopting the above technical solution, after the mounting base is installed on the vehicle body, the end of the first sealing rib away from the mounting surface contacts the vehicle body. Since the width of the first sealing rib gradually decreases in the direction away from the mounting surface, the contact area between the first sealing rib and the vehicle body is reduced, thereby increasing the pressure between the first sealing rib and the vehicle body. This allows the first sealing rib to be pressed into the vehicle body, forming an indentation on the vehicle body, thereby increasing the sealing performance between the first sealing rib and the vehicle body, and further improving the sealing effect between the mounting base and the vehicle body.

[0032] After the mounting bracket is installed on the vehicle body, the end of the second sealing rib away from the mounting surface contacts the vehicle body. Since the width of the second sealing rib gradually decreases in the direction away from the mounting surface, the contact area between the second sealing rib and the vehicle body is reduced, thereby increasing the pressure between the second sealing rib and the vehicle body. This allows the second sealing rib to be pressed into the vehicle body, creating an indentation on the vehicle body, which in turn increases the sealing performance between the second sealing rib and the vehicle body, further improving the sealing effect between the mounting bracket and the vehicle body.

[0033] After the mounting bracket is installed on the vehicle body, the end of the third sealing rib away from the mounting surface contacts the vehicle body. Since the width of the third sealing rib gradually decreases in the direction away from the mounting surface, the contact area between the third sealing rib and the vehicle body is reduced, thereby increasing the pressure between the third sealing rib and the vehicle body. This allows the third sealing rib to be pressed into the vehicle body, creating an indentation on the vehicle body, which in turn increases the sealing performance between the third sealing rib and the vehicle body, further improving the sealing effect between the mounting bracket and the vehicle body.

[0034] This application also discloses a latch connection structure to increase the sealing between the latch and the vehicle body, thereby ensuring the service life and safety of the vehicle.

[0035] A locking connection structure includes a bolt, a sealant, and a locking mechanism as described above. The bolt passes through the connection hole and is threaded to the vehicle body. The sealant is located in a cavity formed by the mounting base and the vehicle body.

[0036] By adopting the above technical solution, since the latch connection structure in this application uses the aforementioned latch and the sealant is provided in the adhesive cavity, the sealing between the latch and the vehicle body and the sealing between the bolt and the connecting hole are increased. On the one hand, this prevents rainwater, water vapor, and other liquids or other possible situations from entering the vehicle body, thereby ensuring the service life and safety of the vehicle. On the other hand, it ensures the airtightness of the vehicle's interior space, thereby improving the vehicle's sound insulation effect and the cleanliness of the vehicle's interior, further enhancing the user's driving experience.

[0037] Optionally, the bolt is provided with an adhesive injection channel, which has an inlet hole and an outlet hole. The inlet hole is located on the end face of the bolt away from the vehicle body, and the outlet hole is located on the side of the connecting hole closer to the vehicle body.

[0038] By adopting the above technical solution, after the mounting base is fixed to the vehicle body with bolts, a sealant cavity is formed between the mounting base and the vehicle body. Then, sealant can be added into the sealant cavity through the sealant injection channel, that is, sealant is added into the sealant injection channel through the sealant inlet hole. The sealant flows along the sealant injection channel and finally discharges through the sealant outlet hole and enters the sealant cavity and the hole structure on the vehicle body through which the bolts pass. This reduces the difficulty of adding sealant into the sealant cavity, thereby increasing the difficulty of adding sealant into the sealant cavity. At the same time, it can also seal the hole structure on the vehicle body to further improve the sealing performance of the vehicle body.

[0039] Optionally, the glue injection channel includes a first channel and a second channel communicating with the first channel, the first channel extending axially along the bolt, and the second channel passing through the bolt radially.

[0040] By adopting the above technical solution, when adding sealant to the cavity through the injection channel, the sealant first enters the first channel and flows along it. Then, under the pressure of the sealant injection equipment, the sealant enters the second channel. Since the second channel passes through the bolt radially, the injection channel has at least two discharge holes, thereby increasing the number of discharge points. This reduces the pressure required to add sealant to the cavity, making the application easier and improving the flow of the sealant. It also increases the efficiency of sealant application and improves the uniformity of the sealant entering the cavity, thus improving the uniformity of the sealant around the bolt. This, in turn, improves the sealing effect of the sealant between the bolt and the connecting hole, as well as the sealing effect of the sealant on the holes in the vehicle body.

[0041] Optionally, the bolt is provided with an adhesive guide groove, which extends circumferentially along the bolt, and the adhesive discharge hole is located on the groove wall of the adhesive guide groove.

[0042] By adopting the above technical solution, since the adhesive guide groove extends along the circumference of the bolt and the adhesive discharge hole is located on the groove wall of the adhesive guide groove, the sealant can flow along the adhesive guide groove in the circumference of the bolt, thereby further improving the uniformity of the sealant entering the adhesive cavity.

[0043] This application also discloses a vehicle to ensure the vehicle's service life and safety.

[0044] A vehicle includes a body and a latch or latch connection structure as described above, the latch being disposed on the body and forming a cavity with the body.

[0045] By adopting the above technical solution, since the vehicle in this application uses the above-mentioned latch or the above-mentioned latch connection structure, the sealing between the latch and the vehicle body and the sealing between the mounting base and the bolt are increased. This ensures the service life and safety of the vehicle on the one hand, and improves the sound insulation and airtightness of the vehicle on the other hand.

[0046] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0047] 1. The latch in this application includes a mounting base and a latch body. The latch body is disposed on the mounting base, which is used to be installed on the vehicle body and can form a glue-containing cavity together with the vehicle body. The mounting base has a first end and a second end, and is provided with a connecting hole, a glue injection hole, and a glue outlet hole. The glue injection hole is located at the first end, the glue outlet hole is located at the second end, and the connecting hole is located between the first end and the second end. The glue outlet hole, the glue injection hole, and the connecting hole are all connected to the glue-containing cavity. After the latch is installed on the vehicle body, sealant can be added to the glue-containing cavity through the glue injection hole to seal the gap between the mounting base and the vehicle body and the gap between the bolt and the connecting hole, thereby ensuring the service life and safety of the vehicle. At the same time, when adding sealant to the glue-containing cavity, the cavity wall can also be used to block the sealant to prevent the sealant from overflowing from the side of the mounting base, thus avoiding the waste of sealant. This reduces the installation cost of the latch and improves the production quality of the vehicle.

[0048] 2. The sealant-containing cavity in this application includes a first sealant-containing cavity and a second sealant-containing cavity. The first and second sealant-containing cavities are independently arranged, thereby dividing the sealant-containing cavity into multiple isolated small cavities. This reduces the injection pressure when adding sealant to the sealant-containing cavity, thus reducing the difficulty of adding sealant and improving the smoothness and efficiency of adding sealant. Furthermore, with the sealant-containing cavity being a large cavity, it can also reduce the amount of sealant used while ensuring the sealing between the mounting base and the vehicle body, as well as the sealing between the bolt and the connecting hole, thereby further reducing the installation cost of the latch. Furthermore, the first adhesive cavity surrounds the second adhesive cavity, and the second adhesive cavity surrounds and communicates with the connecting hole. The injection hole and the outlet hole are both connected to the first adhesive cavity. This allows the sealant added to the second adhesive cavity to seal the gap between the bolt and the connecting hole. The first adhesive cavity surrounds the second adhesive cavity, allowing the sealant added to the first adhesive cavity to seal the gap between the mounting bracket and the vehicle body. Since the injection hole and the outlet hole are both connected to the first adhesive cavity, sealant can be added to the first adhesive cavity through the injection hole, reducing the difficulty of adding sealant to the first adhesive cavity.

[0049] 3. In this application, the first end is located below the second end, thereby placing the injection hole below the dispensing hole. This allows the air in the cavity to be expelled by the weight of the sealant and the squeezing force of the sealant injection device when adding sealant to the cavity. This ensures the density of the sealant added to the cavity and avoids the situation where gas exists in the sealant after it has been added to the cavity, which would affect the sealing effect between the sealant and the mounting bracket and the vehicle body, as well as the sealing effect between the bolt and the vehicle body. This ensures the sealing effect between the sealant and the mounting bracket and the vehicle body, as well as the sealing effect between the bolt and the connecting hole. Attached Figure Description

[0050] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0051] Figure 1 This is a schematic diagram of the structure of the latch described in one embodiment of this application;

[0052] Figure 2 This is a cross-sectional view of the latch described in one embodiment of this application;

[0053] Figure 3 This is a partial structural diagram of the locking connection structure described in one embodiment of this application;

[0054] Figure 4 This is a partial structural cross-sectional view of the locking connection structure described in one embodiment of this application;

[0055] Figure 5 This is a schematic diagram of the bolt structure in one embodiment of this application;

[0056] Figure 6 This is a cross-sectional view of the bolt described in one embodiment of this application;

[0057] Figure 7 This is a partial structural diagram of the vehicle described in one embodiment of this application, mainly showing the connection relationship between the latch and the vehicle body;

[0058] Figure 8 This is a partial structural cross-sectional view of the vehicle described in one embodiment of this application, mainly showing the connection relationship between the latch and the vehicle body.

[0059] Figure label:

[0060] 1. Mounting base; 11. Injection hole; 12. Dispensing hole; 13. Connecting hole; 14. Mounting surface; 141. First sealing rib; 142. Second sealing rib; 143. Third sealing rib; 15. Mounting area; 2. Locking body; 3. Bolt; 31. Injection channel; 311. First channel; 312. Second channel; 32. Glue guide groove; 4. Body; 41. Reinforcing plate; 42. Second glue receiving cavity. Detailed Implementation

[0061] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0062] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0063] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0064] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0066] Reference Figures 1 to 8 A latch is disclosed, which includes a mounting base 1 and a latch body 2 disposed on the mounting base 1. The mounting base 1 is used to be disposed on the vehicle body 4 and can form an adhesive cavity together with the vehicle body 4. The mounting base 1 has a first end and a second end opposite to the first end. The mounting base 1 is provided with an injection hole 11 located at the first end, an outlet hole 12 located at the second end, and a connecting hole 13 located between the first end and the second end. The injection hole 11, the outlet hole 12, and the connecting hole 13 are all connected to the adhesive cavity.

[0067] It is understandable that the connecting hole 13 is used for the bolt 3 to pass through, that is, the bolt 3 that fixes the mounting seat 1 to the vehicle body 4 can pass through the connecting hole 13.

[0068] When installing the latch in this application, first align the latch with the position on the vehicle body 4 where the latch needs to be installed, and then install the bolt 3 so that the thread of the bolt 3 passes through the connecting hole 13 and the thread of the bolt 3 is threaded together with the vehicle body 4, so that the bolt head of the bolt 3 presses against the mounting seat 1 to fix the latch to the vehicle body 4.

[0069] After the latch is installed on the vehicle body 4, the latch and the vehicle body 4 together form a glue-containing cavity, and the glue injection hole 11 is connected to the glue-containing cavity. Then, sealant can be added into the glue-containing cavity through the glue injection hole 11 to fill and seal the gap between the mounting seat 1 and the vehicle body 4. This increases the sealing performance between the mounting seat 1 and the vehicle body 4, preventing rainwater, water vapor, and other liquids or gases from entering the interior of the vehicle body 4 through the gap between the mounting seat 1 and the vehicle body 4 and the holes on the vehicle body 4 through which the bolts 3 pass. This also prevents corrosion inside the vehicle body 4, thus ensuring the service life and safety of the vehicle.

[0070] Because the connecting hole 13 is connected to the adhesive cavity, when sealant is added to the adhesive cavity through the injection hole 11, the sealant can flow to the connecting hole 13. This allows the sealant flowing to the connecting hole 13 to seal the gap between the bolt 3 and the connecting hole 13, increasing the sealing performance between the bolt 3 and the connecting hole 13. This further prevents rainwater, water vapor, and other liquids or gases from entering the interior of the vehicle body 4 through the gap between the bolt 3 and the connecting hole 13 and the holes on the vehicle body 4 through which the bolt 3 passes. This further prevents potential corrosion inside the vehicle body 4, thereby ensuring the vehicle's service life and safety, and improving the user's driving experience.

[0071] Because the mounting base 1 is provided with a dispensing hole 12 communicating with the sealant cavity, on the one hand, when sealant is added to the sealant cavity through the injection hole 11, the air in the sealant cavity can be discharged through the dispensing hole 12, thereby reducing the pressure when adding sealant to the sealant cavity, reducing the difficulty of adding sealant to the sealant cavity, improving the smoothness of adding sealant to the sealant cavity, and thus improving the efficiency of sealant addition. On the other hand, during the process of adding sealant to the sealant cavity, when the sealant is added to the position of the dispensing hole 12, the sealant can be discharged through the dispensing hole 12. 2. Overflow is prevented to avoid the sealant from overflowing from the periphery of the mounting base 1. The sealant overflowing from the dispensing hole 12 is easier to clean than overflowing from the periphery of the mounting base 1. At the same time, the amount of sealant added to the receiving cavity can be judged by observing whether sealant overflows from the dispensing hole 12, so as to ensure that the receiving cavity is filled with sealant, thereby further ensuring the sealing between the mounting base 1 and the vehicle body 4 and the sealing between the bolt 3 and the connecting hole 13.

[0072] Furthermore, since the latch in this application is installed on the vehicle body 4, a cavity for receiving adhesive is formed between the mounting seat 1 and the vehicle body 4. When sealant is added to the cavity through the injection hole 11, the cavity wall can block the sealant to prevent it from overflowing on the side of the mounting seat 1. This ensures the cleanliness of the mounting position of the latch on the vehicle body 4, thereby ensuring the production quality of the vehicle and improving the user experience.

[0073] As more and more sealant is added to the sealant cavity, the sealant will flow towards the outlet hole 12 under the action of extrusion pressure. Since the injection hole 11 is located at the first end of the mounting base 1, the outlet hole 12 is located at the second end of the mounting base 1, and the connection hole 13 is located between the first end and the second end, the sealant must be able to fill the position of the connection hole 13 before overflowing through the outlet hole 12, so as to ensure the sealing between the bolt 3 and the connection hole 13, thereby further ensuring the service life and safety of the vehicle.

[0074] Meanwhile, since the latch in this application can increase the sealing between the latch and the body 4 and the sealing between the bolt 3 and the connecting hole 13, it can also ensure that the end face of the mounting seat 1 facing the body 4 is relatively dry, so as to avoid the latch from rusting, thereby ensuring the service life of the latch and the safety of the vehicle with the latch in this application installed.

[0075] Furthermore, since the sealant added to the cavity seals the mounting base 1 and the vehicle body 4, as well as the bolt 3 and the hole wall of the connecting hole 13, it can also prevent dust or noise from entering the vehicle, thereby improving the vehicle's sound insulation and sealing effect, and further enhancing the user's driving experience.

[0076] In addition, since the sealant added to the cavity can flow to the connection hole 13 and seal the gap between the hole wall of the connection hole 13 and the bolt 3, the sealant can also increase the stability of the bolt 3, thereby increasing the connection stability between the bolt 3 and the vehicle body 4, avoiding the risk of the bolt 3 loosening, and thus ensuring the fixing stability of the bolt 3 to the latch.

[0077] This application does not specifically limit the connection method between the latch body 2 and the mounting base 1. Preferably, refer to... Figure 1 The latch body 2 is fixedly connected to the mounting base 1 by riveting, which reduces the assembly difficulty of the latch and improves the production efficiency of the latch. In other embodiments, the latch can also be fixedly connected to the mounting base 1 by welding or other methods.

[0078] This application does not specifically limit the location of the latch. It can be installed on the vehicle body 4 to lock the doors or trunk lid of the vehicle body 4. It can also be installed on the hood of the vehicle body 4 to lock the hood of the vehicle body 4. Of course, it can also be used in other locations on the vehicle body 4 where doors or covers need to be locked.

[0079] This application does not specify the number of connecting holes 13; preferably, refer to... Figure 1 and Figure 2 There are two connecting holes 13, located on both sides of the latch body 2, to increase the number of connection points between the latch and the vehicle body 4, thereby increasing the stability of the connection between the latch and the vehicle body 4. In other embodiments, the connecting holes 13 can be provided in other numbers, as long as it is possible to fix the latch to the vehicle body 4 by inserting bolts 3 through the connecting holes 13.

[0080] This application does not specifically limit the positions of the first end and the second end. When the latch is installed on the vehicle body 4 to lock the door, the first end and the second end are respectively the two ends in the length direction of the mounting base 1, so that after the latch is installed on the vehicle body 4, the glue injection hole 11 and the glue outlet hole 12 are arranged in the vertical direction in sequence. When the latch is installed on the hood of the vehicle body 4 to lock the hood, the first end and the second end are respectively the two ends in the width direction of the mounting base 1, so that when the hood is in the open position, the glue injection hole 11 and the glue outlet hole 12 are arranged in the vertical direction in sequence. When the latch is installed on the vehicle body to lock the trunk lid, the first end and the second end can be either of the above two methods.

[0081] This application does not specifically limit the structure of the glue-containing cavity. Preferably, the glue-containing cavity includes a first glue-containing cavity and a second glue-containing cavity 42 that are independent of each other. The first glue-containing cavity is arranged around the second glue-containing cavity 42. The second glue-containing cavity 42 is arranged around the connecting hole 13 and communicates with the connecting hole 13. The glue injection hole 11 and the glue outlet hole 12 are both communicated with the first glue-containing cavity.

[0082] It should be noted that the "independent first and second glue cavities 42" mentioned above means that the first and second glue cavities 42 are not connected to each other; the "first glue cavity is arranged around the second glue cavity 42" mentioned above means that the first glue cavity is located outside the second glue cavity 42.

[0083] Since the first and second adhesive chambers 42 are independent of each other, the adhesive chamber is divided into multiple isolated small chambers, which reduces the injection pressure when adding sealant to the adhesive chamber, thereby reducing the difficulty of adding sealant to the adhesive chamber, improving the smoothness and efficiency of adding sealant to the adhesive chamber, and at the same time, compared with the solution of the adhesive chamber being a large chamber, it can also reduce the amount of sealant used while ensuring the sealing between the mounting seat 1 and the vehicle body 4 and the sealing between the bolt 3 and the connecting hole 13, thereby further reducing the installation cost of the latch.

[0084] Since the second adhesive cavity 42 surrounds and communicates with the connecting hole 13, the sealant added to the second adhesive cavity 42 can be used to seal the gap between the bolt 3 and the connecting hole 13. The first adhesive cavity surrounds the second adhesive cavity 42, so the sealant added to the first adhesive cavity can be used to seal the gap between the mounting base 1 and the vehicle body 4. Since both the injection hole 11 and the outlet hole 12 are communicated with the first adhesive cavity, sealant can be added to the first adhesive cavity through the injection hole 11, thereby reducing the difficulty of adding sealant to the first adhesive cavity.

[0085] It should be noted that when adding sealant to the second adhesive cavity 42, sealant can be added to the second adhesive cavity 42 through the connection hole 13 after the mounting seat 1 is placed on the vehicle body 4 and before the bolts 3 used to fix the mounting seat 1 are installed. After adding the sealant, the bolts 3 are then installed. Although there may be some sealant overflowing through the connection hole 13 under the pressure of the bolts 3, the overflowing sealant will adhere to the mounting seat 1 and will not come into contact with the paint, making it easy for workers to clean the sealant overflowing from the connection hole 13. Of course, it is preferable to provide an adhesive injection channel 31 on the bolts 3 used to fix the mounting seat 1, which communicates with the second adhesive cavity. After the bolts 3 are installed on the vehicle body 4, the sealant can be added to the second adhesive cavity 42 through the adhesive injection channel 31. This not only reduces the difficulty of adding sealant to the second adhesive cavity 42, but also avoids the situation of sealant overflowing from the second adhesive cavity 42, thereby reducing the cost of locking installation and ensuring the production quality of the vehicle.

[0086] In other embodiments, the adhesive cavity can also be a single integral cavity to reduce the manufacturing difficulty of the mounting base 1 and thus reduce the manufacturing cost of the mounting base 1.

[0087] This application does not specifically limit the positional relationship between the first end and the second end; preferably, refer to... Figure 8 The first end is located below the second end.

[0088] It should be noted that, for the case of the lock being installed on the vehicle body 4, "the first end being below the second end" means that the lock is installed on the vehicle body 4 after it has been installed; for the case of the lock being installed on the hood of the vehicle body 4, "the first end being below the second end" means that the lock is installed on the hood and the hood is in the open position.

[0089] Since the first end is located below the second end, the injection hole 11 is located below the dispensing hole 12. This allows the air in the cavity to be expelled by the weight of the sealant and the squeezing force of the sealant injection equipment when the sealant is added to the cavity. This ensures the density of the sealant added to the cavity and avoids the situation where there is gas in the sealant after it has been added to the cavity, which would affect the sealing effect between the mounting base 1 and the vehicle body 4, as well as between the bolt 3 and the vehicle body 4. This ensures the sealing effect between the mounting base 1 and the vehicle body 4, as well as between the bolt 3 and the connecting hole 13.

[0090] This application does not specifically limit the method of forming the gel cavity; preferably, refer to... Figure 1 and Figure 2 The mounting base 1 has a mounting surface 14 on the side opposite to the latch body 2. The mounting surface 14 has a first sealing rib 141 for contacting the vehicle body 4. The first sealing rib 141 extends circumferentially along the mounting base 1.

[0091] It is understandable that the glue injection hole 11 and the glue outlet hole 12 are both located inside the first sealing rib 141. The first sealing rib 141 is an annular structure so that after the mounting seat 1 is installed on the vehicle body 4, the mounting seat 1 and the vehicle body 4 together form a glue-containing cavity under the action of the first sealing rib 141.

[0092] Furthermore, refer to Figure 1 and Figure 2 The width of the first sealing rib 141 is gradually reduced along the direction away from the mounting surface 14.

[0093] After the mounting base 1 is installed on the vehicle body 4, the end of the first sealing rib 141 away from the mounting surface 14 contacts the vehicle body 4. Since the width of the first sealing rib 141 gradually decreases in the direction away from the mounting surface 14, the contact area between the first sealing rib 141 and the vehicle body 4 is reduced, thereby increasing the pressure between the first sealing rib 141 and the vehicle body 4, so that the first sealing rib 141 can be pressed into the vehicle body 4, forming an indentation on the vehicle body 4, thereby increasing the sealing performance between the first sealing rib 141 and the vehicle body 4, and further improving the sealing effect between the mounting base 1 and the vehicle body 4.

[0094] It is understandable that the exterior of the body 4 has paint. After the mounting bracket 1 is installed on the body 4, the first sealing rib 141 can penetrate into the paint under the pressure applied by the bolt 3, so as to form an indentation on the body 4.

[0095] Furthermore, refer to Figure 1 and Figure 2 The end of the first sealing rib 141 away from the mounting surface 14 is pointed, that is, the cross-sectional shape of the first sealing rib 141 is V-shaped, so as to increase the depth of the first sealing rib 141 penetrating into the paint, thereby further increasing the sealing between the mounting seat 1 and the body 4.

[0096] This application does not specify the connection method between the first sealing rib 141 and the mounting base 1. Preferably, refer to... Figure 1 and Figure 2 The first sealing rib 141 is integrally formed on the mounting base 1 to reduce the manufacturing cost of the latch. In other embodiments, the first sealing rib 141 may also be a structure separately provided on the mounting surface 14 or a ring structure that can be separated from the mounting surface 14.

[0097] In other embodiments, the adhesive cavity may also be formed by a groove-shaped structure provided on the mounting surface 14.

[0098] This application does not specifically limit the formation method of the first and second adhesive cavities; preferably, refer to... Figure 1 and Figure 2 The mounting surface 14 has a second sealing rib 142 for contacting the vehicle body 4. The second sealing rib 142 extends circumferentially along the connecting hole 13 and is located inside the first sealing rib 141.

[0099] It is understood that the second sealing rib 142 is a ring structure so that after the mounting seat 1 is installed on the vehicle body 4, the mounting seat 1 and the vehicle body 4 form a large cavity under the action of the first sealing rib 141. The second sealing rib 142 divides the large cavity into a second adhesive cavity 42 located inside itself and a first adhesive cavity located between the second sealing rib 142 and the first sealing rib 141.

[0100] Furthermore, refer to Figure 1 and Figure 2 The width of the second sealing rib 142 is gradually reduced along the direction away from the mounting surface 14.

[0101] After the mounting base 1 is installed on the vehicle body 4, the end of the second sealing rib 142 away from the mounting surface 14 contacts the vehicle body 4. Since the width of the second sealing rib 142 gradually decreases in the direction away from the mounting surface 14, the contact area between the second sealing rib 142 and the vehicle body 4 is reduced, thereby increasing the pressure between the second sealing rib 142 and the vehicle body 4, so that the second sealing rib 142 can be pressed into the vehicle body 4, forming an indentation on the vehicle body 4, thereby increasing the sealing performance between the second sealing rib 142 and the vehicle body 4, and further improving the sealing effect between the mounting base 1 and the vehicle body 4.

[0102] It is understandable that the exterior of the body 4 has paint. After the mounting bracket 1 is installed on the body 4, the second sealing rib 142 can penetrate into the paint under the pressure applied by the bolt 3, so as to form an indentation on the body 4.

[0103] Furthermore, refer to Figure 1 and Figure 2 The end of the second sealing rib 142 away from the mounting surface 14 is pointed, that is, the cross-sectional shape of the second sealing rib 142 is V-shaped, so as to increase the depth of the second sealing rib 142 penetrating into the paint, thereby further increasing the sealing between the mounting seat 1 and the body 4.

[0104] This application does not specify the connection method between the second sealing rib 142 and the mounting base 1. Preferably, the second sealing rib 142 is integrally formed into the mounting base 1 to reduce the manufacturing cost of the latch. In other embodiments, the second sealing rib 142 may also be a structure separately provided on the mounting surface 14 or a ring structure that can be separated from the mounting surface 14.

[0105] In other embodiments, both the first and second adhesive cavities can be formed by a groove-shaped structure provided on the mounting surface 14.

[0106] In a preferred embodiment, refer to Figure 1 and Figure 2 The mounting base 1 has a mounting area 15, the latch body 2 is located in the mounting area 15, and the mounting surface 14 is provided with a third sealing rib 143 for contacting the vehicle body 4. The third sealing rib 143 extends circumferentially along the mounting area 15 and is located inside the first sealing rib 141.

[0107] It is understandable that the third sealing rib 143 is a ring structure. The third sealing rib 143 and the second sealing rib 142 are set independently so that after the mounting seat 1 is installed on the vehicle body, the third sealing rib 143 encloses its own internal space to form a sealing cavity located inside the first adhesive cavity.

[0108] Since the third sealing rib 143 encloses the installation area 15 to form a sealed cavity, the sealant cannot enter the sealed cavity when sealant is added to the cavity through the injection hole 11, thereby reducing the amount of sealant used and further reducing the installation cost of the latch. At the same time, it can also seal and isolate the connection position between the latch body 2 and the mounting base 1 from other positions on the mounting base 1 to prevent rainwater, water vapor and other liquids or other substances from entering the interior of the vehicle body 4 through the connection position between the latch body 2 and the mounting base 1.

[0109] Furthermore, refer to Figure 1 and Figure 2 The width of the third sealing rib 143 gradually decreases in the direction away from the mounting surface 14.

[0110] After the mounting base 1 is installed on the vehicle body 4, the end of the third sealing rib 143 away from the mounting surface 14 contacts the vehicle body 4. Since the width of the third sealing rib 143 gradually decreases in the direction away from the mounting surface 14, the contact area between the third sealing rib 143 and the vehicle body 4 is reduced, thereby increasing the pressure between the third sealing rib 143 and the vehicle body 4. This allows the third sealing rib 143 to be pressed into the vehicle body 4, forming an indentation on the vehicle body 4. This increases the sealing performance between the third sealing rib 143 and the vehicle body 4, further improving the sealing effect between the mounting base 1 and the vehicle body 4.

[0111] It is understandable that the exterior of the vehicle body 4 has paint. After the mounting bracket 1 is installed on the vehicle body 4, the third sealing rib 143 can penetrate into the paint under the pressure applied by the bolt 3, so as to further increase the sealing performance of the sealing cavity.

[0112] Furthermore, refer to Figure 1 and Figure 2 The end of the third sealing rib 143 away from the mounting surface 14 is pointed, that is, the cross-sectional shape of the third sealing rib 143 is V-shaped, so as to increase the depth of the third sealing rib 143 penetrating into the paint, thereby further increasing the sealing between the mounting seat 1 and the body 4.

[0113] This application does not specify the connection method between the third sealing rib 143 and the mounting base 1. Preferably, the third sealing rib 143 is integrally formed into the mounting base 1 to reduce the manufacturing cost of the latch. In other embodiments, the third sealing rib 143 may also be a structure separately provided on the mounting surface 14 or a ring structure that can be separated from the mounting surface 14.

[0114] In other embodiments, the third sealing rib 143 may be omitted so that sealant can be applied to the mounting area 15 to seal the connection between the latch body 2 and the mounting base 1.

[0115] Reference Figures 3 to 6This application also discloses a locking connection structure, which includes a bolt 3, a sealant and a locking mechanism as described above. The bolt 3 passes through the connection hole 13 and is threaded to the vehicle body 4. The sealant is located in the adhesive cavity formed by the mounting base 1 and the vehicle body 4.

[0116] Because the latch connection structure in this application uses the aforementioned latch, and the adhesive cavity is filled with sealant, the sealing between the latch and the vehicle body 4 is increased, as is the sealing between the bolt 3 and the connecting hole 13. This prevents rainwater, water vapor, and other liquids or other possible substances from entering the vehicle body 4, thus ensuring the vehicle's service life and safety. On the other hand, it ensures the airtightness of the vehicle's interior space, thereby improving the vehicle's sound insulation and interior cleanliness, and further enhancing the user's driving experience.

[0117] In a preferred embodiment, refer to Figures 3 to 6 Bolt 3 is provided with an injection channel 31, which has an injection hole and an injection hole. The injection hole is located on the end face of bolt 3 away from the vehicle body 4, and the injection hole is located on the side of connecting hole 13 close to the vehicle body 4.

[0118] It should be noted that the above-mentioned "glue inlet hole is located on the end face of bolt 3 away from the body 4, and glue outlet hole is located on the side of connecting hole 13 close to the body 4" refers to the situation after the locking connection structure is installed on the body 4.

[0119] After the mounting base 1 is fixedly connected to the vehicle body 4 by bolts 3, a sealant cavity is formed between the mounting base 1 and the vehicle body 4. Then, sealant can be added into the sealant cavity through the sealant injection channel 31, that is, sealant is added into the sealant injection channel 31 through the sealant inlet hole. The sealant flows along the sealant injection channel 31 and finally discharges through the sealant outlet hole and enters the sealant cavity and the hole structure on the vehicle body 4 through which the bolts 3 pass. This reduces the difficulty of adding sealant into the sealant cavity, thereby increasing the difficulty of adding sealant into the sealant cavity. At the same time, it can also seal the hole structure on the vehicle body 4 to further improve the sealing performance of the vehicle body 4.

[0120] It should be noted that, for the above-mentioned cavity design where the adhesive cavity is a single unit, sealant can be added to the cavity simultaneously through the injection channel 31 and the injection hole 11, thereby improving the efficiency of sealant application and the installation efficiency of the latch. For the design where the second sealing rib 142 forms a second adhesive cavity 42, sealant can be added to the second adhesive cavity 42 through the injection channel 31 located on the bolt 3, reducing the difficulty of adding sealant to the second adhesive cavity 42. Alternatively, sealant can be added to the second adhesive cavity 42 by providing a hole structure on the mounting base 1 that communicates with the second adhesive cavity.

[0121] This application does not specifically limit the structure of the glue injection channel 31; preferably, refer to... Figure 6 The glue injection channel 31 includes a first channel 311 and a second channel 312 communicating with the first channel 311. The first channel 311 extends along the axial direction of the bolt 3, and the second channel 312 passes through the bolt 3 in the radial direction.

[0122] It is understandable that the first channel 311 is connected to the middle of the second channel 312 along its length, the channel opening of the first channel 311 away from the second channel 312 constitutes the glue inlet hole, and the channel opening of the second channel 312 located on the outer peripheral surface of the bolt 3 constitutes the glue outlet hole.

[0123] When adding sealant to the adhesive cavity through the adhesive injection channel 31 (e.g.) Figure 6 (Indicated by the dashed arrow) The sealant first enters the first channel 311 and flows along it. Then, under the pressure of the sealant injection device, the sealant enters the second channel 312. The sealant in the second channel 312 continues to flow along it and enters the second adhesive cavity 42 through its opening. Since the second channel 312 passes through the bolt 3 radially, the injection channel 31 has at least two discharge holes, thus increasing the number of discharge points. This reduces the pressure required to inject the sealant into the adhesive cavity, making it easier and smoother to inject. It also increases the efficiency of sealant injection and improves the uniformity of the sealant entering the adhesive cavity, thus improving the uniformity of the sealant around the bolt 3. This, in turn, improves the sealing effect between the bolt 3 and the connecting hole 13, as well as the sealing effect of the sealant on the holes in the body 4.

[0124] It should be noted that the above-mentioned "first channel 311 extends along the axial direction of bolt 3" means that the extension direction of the first channel 311 can be parallel to the axial direction of bolt 3, or it can be at an angle to the axial direction of bolt 3, as long as it can ensure that the sealant can move along the first channel 311 from the side where the bolt head is located toward the side near the screw; the above-mentioned "second channel 312 passes through bolt 3 in the radial direction" means that the extension direction of the second channel 312 can be at an angle to the radial direction of bolt 3, or it can be at an angle to the radial direction of bolt 3, as long as it can ensure that both openings of the second channel 312 are located on the outer circumferential surface of bolt 3.

[0125] The better one is to refer to Figure 6Bolt 3 is an internal plumb bob. The opening of the first channel 311, which is away from the second channel 312, is located in the plumb hole of the internal plumb bob and at the bottom wall of the plumb hole. This improves the flow of sealant when adding sealant into the sealant cavity and also allows excess sealant to be hidden in the plumb hole, thereby further improving the production quality of the vehicle.

[0126] This application does not specify the number of second channels 312. Preferably, one second channel 312 is provided to ensure the structural strength of the bolt 3. In other embodiments, multiple second channels 312 may be provided.

[0127] In other embodiments, the glue injection channel 31 may also be provided with a channel structure in which the extension direction is at an angle to the axial direction of the bolt 3, as long as the glue inlet hole of the glue injection channel 31 is located at the end of the bolt 3 away from the vehicle body 4, and the glue outlet hole of the glue injection channel 31 is located on the side of the connecting hole 13 close to the vehicle body 4.

[0128] Furthermore, refer to Figure 5 and Figure 8 Bolt 3 is provided with a guide groove 32, which extends circumferentially along bolt 3. The discharge hole is located on the groove wall of guide groove 32. After the buckle is installed on the vehicle body 4 by bolt 3, guide groove 32 is located in second adhesive cavity 42. When sealant enters adhesive cavity through second channel 312, sealant can flow along guide groove 32 circumferentially along bolt 3, thereby further improving the uniformity of sealant entering adhesive cavity.

[0129] Reference Figure 7 and Figure 8 This application also discloses a vehicle, which includes a body 4 and a latch or latch connection structure as described above, wherein the latch is disposed on the body 4 and together with the body 4 forms a cavity.

[0130] Because the vehicle in this application adopts the above-mentioned latch or the above-mentioned latch connection structure, the sealing between the latch and the body 4 is increased, as is the sealing between the mounting seat 1 and the bolt 3. This ensures the service life and safety of the vehicle on the one hand, and improves the sound insulation and airtightness of the vehicle on the other hand.

[0131] It should be noted that the body 4 is provided with a hole structure for the bolt 3 to pass through. The diameter of the hole structure is larger than the diameter of the bolt 3. The inner side of the body 4 has a reinforcing plate 41, which is fixedly connected to the body 4 by electric welding. Under the action of the second sealing rib 142, the mounting seat 1 and the reinforcing plate 14 form a second glue cavity 42 that is not connected to the first glue cavity. The bolt 3 passing through the hole structure on the body 4 can be threaded to the reinforcing plate 41 to realize the locking connection to the body 4 by the bolt 3. When the sealant is injected into the second glue cavity 42 through the glue injection channel 31, the air in the second glue cavity 42 can be discharged through the gap between the reinforcing plate 41 and the body 4.

[0132] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0133] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0134] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A catch, characterized in that The device includes a mounting base (1) and a latch body (2) disposed on the mounting base (1). The mounting base (1) is used to be disposed on the vehicle body (4) and can form a glue-containing cavity together with the vehicle body (4). The mounting base (1) has a first end and a second end opposite to the first end. The mounting base (1) is provided with an injection hole (11) located at the first end, an outlet hole (12) located at the second end, and a connecting hole (13) located between the first end and the second end. The injection hole (11), the outlet hole (12), and the connecting hole (13) are all connected to the glue-containing cavity.

2. A catch according to claim 1, characterised in that The glue-containing cavity includes a first glue-containing cavity and a second glue-containing cavity (42) that are independent of each other. The first glue-containing cavity is arranged around the second glue-containing cavity (42). The second glue-containing cavity (42) is arranged around the connecting hole (13) and communicates with the connecting hole (13). The glue injection hole (11) and the glue outlet hole (12) are both communicated with the first glue-containing cavity.

3. A catch according to claim 1, wherein The first end is located below the second end.

4. A latch according to any one of claims 1-3, characterized in that, The mounting base (1) has a mounting surface (14) on the side opposite to the latch body (2), the mounting surface (14) has a first sealing rib (141) for contacting the vehicle body (4), the first sealing rib (141) is arranged to extend circumferentially along the mounting base (1).

5. A catch according to claim 4, wherein The mounting surface (14) has a second sealing rib (142) for contacting the vehicle body (4), the second sealing rib (142) extends circumferentially along the connecting hole (13), and the second sealing rib (142) is located inside the first sealing rib (141).

6. A catch according to claim 5, wherein The mounting base (1) has a mounting area (15), the latch body (2) is located in the mounting area (15), the mounting surface (14) is provided with a third sealing rib (143) for contacting the vehicle body (4), the third sealing rib (143) extends circumferentially along the mounting area (15), and the third sealing rib (143) is located inside the first sealing rib (141).

7. A catch according to claim 6, wherein The width of the first sealing rib (141) is gradually reduced in the direction away from the mounting surface (14); And / or, the width of the second sealing rib (142) is gradually reduced in the direction away from the mounting surface (14); And / or, the width of the third sealing rib (143) is gradually reduced in the direction away from the mounting surface (14).

8. A catch connection structure characterized by comprising: Includes a bolt (3), sealant, and a latch as described in any one of claims 1-7, wherein the bolt (3) passes through the connecting hole (13) and is threaded to the vehicle body (4), and the sealant is located in the adhesive cavity formed by the mounting base (1) and the vehicle body (4); the bolt (3) is provided with an adhesive injection channel (31), the adhesive injection channel (31) having an inlet hole and an outlet hole, the inlet hole being located on the end face of the bolt (3) away from the vehicle body (4), and the outlet hole being located on the side of the connecting hole (13) close to the vehicle body (4).

9. A hasp connection structure according to claim 8, wherein The glue injection channel (31) includes a first channel (311) and a second channel (312) communicating with the first channel (311). The first channel (311) extends along the axial direction of the bolt (3), and the second channel (312) passes through the bolt (3) in the radial direction. And / or, the bolt (3) is provided with a glue guide groove (32), the glue guide groove (32) extends along the circumference of the bolt (3), and the glue discharge hole is provided on the groove wall of the glue guide groove (32).

10. A vehicle characterized by comprising: Includes a body (4) and a latch as described in any one of claims 1-7 or a latch connection structure as described in any one of claims 8-9, wherein the latch is disposed on the body (4) and together with the body (4) forms a cavity for receiving adhesive.

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