Hinge and automobile

Abstract

The present application discloses a hinge and a car. The inner wall of the female hinge's sleeve is provided with an annular boss, and the upper end surface of the annular boss is provided with a first gear surface. The lower end surface of the male hinge's pin is provided with a second gear surface, and the pin is rotatable and axially slidable in a sealed connection to the upper shaft hole, so that the first gear surface and the second gear surface are meshed. The fixed block is provided with a first through hole, and the fixed block is sealed and connected to the lower shaft hole. The sliding block is provided with a second through hole, and the sliding block is axially slidable and sealed in the lower shaft hole between the fixed block and the annular boss, and when the sliding block and the fixed block are in contact, the first through hole and the second through hole do not completely overlap. The sealing slider is axially slidable and sealed in the lower shaft hole below the fixed block, and the lower shaft hole is provided with a limit device to prevent the sealing slider from falling off. The inner wall of the lower shaft hole is provided with a vertical groove. No additional limiter is required, and the hinge itself can provide multi-angle limit, and a delayed return mechanism is used to reduce the problem of jerkiness.

Description

Technical Field

[0001] The present application relates to the technical field of automobile manufacturing, and in particular to a hinge and an automobile. Background Art

[0002] Automobile door hinges or tailgate hinges are one of the key components in the door system. Many manufacturers now use four-link or other types of tailgate hinges. These hinges have no locking structure and only use connecting rods to connect the body and door parts together, without the function of gear restriction.

[0003] In order to achieve the gear limit function during the rotation of the door or tailgate, some car doors are equipped with multiple limit mechanisms to realize the multi-gear limit locking function. However, too many limit angles will cause a sense of frustration during the door opening and closing process. Therefore, in actual application, the customer's feel must be sacrificed or the door limit angle must be reduced. The conflict between the large number of limit gears and the obvious sense of frustration cannot be resolved. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present application provide a hinge and a car, which can realize the limit locking function of any gear without the rotational jerk during the process of opening and closing the door, thereby improving the user experience of the door opening and closing process.

[0005] According to one aspect of an embodiment of the present application, there is provided a hinge, comprising:

[0006] In an exemplary embodiment of the present application, a hinge is provided, comprising:

[0007] A female hinge, the female hinge comprising a shaft sleeve, an inner wall of the shaft sleeve being provided with an annular boss, the annular boss dividing the shaft hole of the shaft sleeve into an upper shaft hole and a lower shaft hole, and an upper end surface of the annular boss being provided with a first gear surface;

[0008] a male hinge comprising a pin, wherein the lower end surface of the pin is provided with a second gear surface that cooperates with the first gear surface, the pin being configured to be inserted into the upper shaft hole so as to be rotatable in the circumferential direction and slidable in the axial direction, and to mesh the first gear surface with the second gear surface, and the pin being sealedly connected to the upper shaft hole;

[0009] A fixed block, the fixed block is provided with a plurality of first through holes for liquid circulation, the fixed block is configured to be fixedly inserted into the lower shaft hole and sealed with the lower shaft hole;

[0010] a sliding block, the sliding block being provided with a plurality of second through holes for liquid circulation, the sliding block being configured to be axially slidably inserted into the lower shaft hole between the fixed block and the annular boss and sealedly connected to the lower shaft hole, and when the sliding block is in contact with the fixed block, the first through holes and the second through holes do not completely overlap;

[0011] A sealing slider, the sealing slider being configured to be axially slidably inserted into the lower shaft hole below the fixed block and sealed with the lower shaft hole, the lower shaft hole being provided with a limiting device for preventing the sealing slider from falling off;

[0012] The inner wall of the lower shaft hole is provided with a vertical groove for liquid circulation, and the vertical groove is configured as follows: when the sliding block and the fixed block are inserted into the lower shaft hole and the sliding block is in contact with the fixed block, the highest point of the vertical groove is higher than the sliding block, and the distance between the lowest point of the vertical groove and the fixed block is greater than the thickness of the sealing slider.

[0013] In an exemplary embodiment of the present application, the distance between the lowest point of the vertical groove and the limiting device is greater than the sum of the thickness of the sealing slider and the tooth height of the first gear surface.

[0014] In an exemplary embodiment of the present application, the female hinge includes a mounting through hole, and the shaft sleeve is detachably inserted into the mounting through hole.

[0015] In an exemplary embodiment of the present application, an annular limit platform is provided on the outer wall of the upper end of the sleeve, and the upper end surface of the annular limit platform is provided with at least two countersunk holes for passing bolts along its circumference, and the female hinge is provided with at least two threaded holes corresponding to the countersunk holes at the outer edge of the mounting through hole.

[0016] In an exemplary embodiment of the present application, an outer wall of the lower end of the sleeve is provided with a first external thread, and when the sleeve is installed in the mounting through hole, the first external thread is exposed outside the mounting through hole.

[0017] In an exemplary embodiment of the present application, an outer side wall of the pin shaft is provided with a first annular groove for mounting a sealing ring.

[0018] In an exemplary embodiment of the present application, the outer side wall of the sliding block is provided with a second annular groove for installing a sealing ring, and the outer side wall of the sealing slider is provided with a third annular groove for installing a sealing ring.

[0019] In an exemplary embodiment of the present application, the outer side wall of the fixing block is provided with a second external thread, the lower axial hole is provided with an internal thread matching the second external thread, the fixing block and the lower axial hole are fixedly connected by threads, and the outer side wall of the fixing block is provided with a fourth annular groove for installing a sealing ring.

[0020] In an exemplary embodiment of the present application, the first through hole is a special-shaped hole.

[0021] A second aspect of the present application discloses an automobile, comprising a door, wherein the door is connected to a vehicle body by the hinge described in any one of the above items.

[0022] The hinge of this application is assembled as follows when in use:

[0023] First, press the sliding block into the lower shaft hole of the sleeve. Then, press the fixing block into the lower shaft hole of the sleeve and secure it. Press the sealing slider into the lower shaft hole of the sleeve until it is close to the fixing block and passes the bottom of the vertical groove. Then, install the limit device at the bottom of the lower shaft hole to prevent the sealing slider from falling out. Next, inject liquid from the upper end of the upper shaft hole of the sleeve until it is full. Then, support the sealing slider from the lower end and slowly press it into the pin of the male hinge. During the process of pressing the pin, excess liquid can be discharged through the vertical groove of the lower shaft hole. After the remaining liquid meets the design requirements, release the sealing slider and continue to press the pin into its working position. At this time, the sealing slider will also reach its working position due to the liquid pressure, and the installation is complete. The female hinge is fixed to the vehicle body with the upper shaft hole of the sleeve facing upward. The male hinge is fixed to the vehicle door with the pin facing downward.

[0024] The hinge of the present application needs to overcome the meshing resistance between the first gear surface and the second gear surface when opening or closing the car door, push the car door, and make the car door drive the pin shaft to rotate, thereby making the second gear surface at the lower end of the pin shaft slide out from the first gear surface. As the second gear surface slides out, the pin shaft is pushed upward, and the first gear surface and the second gear surface change from a meshing state to a separated state.

[0025] It should be understood that since the pin shaft, sliding block and sealing slider are all sealed and connected to the sleeve, a closed space is formed inside the sleeve. When the pin shaft moves upward, the air pressure in the closed space is lower than the external atmospheric pressure. The sealing slider slides upward due to the pressure of the external atmosphere, and pushes the liquid in the closed space to move upward. The sliding block is impacted by the liquid and slides upward, so that the sliding block is separated from the fixed block, so that the liquid flows upward directly through the first through hole and the second through hole. Under the support of the liquid, the first gear surface and the second gear surface of the pin shaft remain separated, and the rotation of the car door is not affected by the gear structure and there is no sense of jerkiness.

[0026] During the rotation of the car door, although the pin shaft moves downward under the action of gravity between the car door and the male hinge, the liquid stops flowing upward, and the sliding block will return to the position in contact with the fixed block under the action of gravity. Since the first through hole and the second through hole do not overlap at all when the sliding block is in contact with the fixed block, the liquid can only flow slowly through the vertical grooves on the inner wall of the lower shaft hole, thereby causing the pin shaft to fall slowly. Through this delayed return method, during the normal opening and closing process, the gear structure is always in a semi-separated state, and the gear structure has little effect on the rotation, so there is no sense of frustration.

[0027] When the car door is opened or closed to the position that needs to be maintained, the car door stops rotating, so the pin shaft slowly resets. After resetting, the first gear surface engages with the second gear surface to provide a limiting force value, so that the car door can be normally maintained at any angle.

[0028] In summary, the hinge of the present application does not require additional limiters, and the hinge itself can provide multi-angle limits. At the same time, when the car door is opened or closed continuously through the limit angle, a delayed return mechanism is used to reduce the sense of frustration and improve customer feel.

[0029] The above description is only an overview of the technical solutions of the embodiments of the present application. In order to more clearly understand the technical means of the embodiments of the present application, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0031] Figure 1 A structural schematic diagram of the hinge described in Example 1 of the present application is shown.

[0032] Figure 2 A schematic diagram of the exploded structure of the hinge described in Example 1 of the present application is shown.

[0033] Figure 3 A cross-sectional schematic diagram of the hinge described in Example 1 of the present application is shown.

[0034] Figure 4 A structural schematic diagram of the male hinge described in Example 1 of the present application is shown.

[0035] Figure 5A schematic structural diagram of the shaft sleeve described in Example 1 of the present application is shown.

[0036] Figure 6 A cross-sectional schematic diagram of the shaft sleeve described in Example 1 of the present application is shown.

[0037] Figure 7 A structural schematic diagram of the fixing block described in Example 1 of the present application is shown.

[0038] Figure 8 A structural schematic diagram of the sliding block described in Example 1 of the present application is shown.

[0039] Figure 9 A structural schematic diagram of the sealing slider described in Example 1 of the present application is shown.

[0040] Description of Figure Numbers:

[0041] 10. Female hinge; 11. Mounting through hole;

[0042] 20. Male hinge; 21. Pin; 22. Second gear surface; 23. First annular sealing ring;

[0043] 30. Bushing; 31. Annular stopper; 32. Flanged boss; 33. First gear surface; 34. Vertical groove; 35. Protrusion; 36. Upper shaft hole; 37. Lower shaft hole; 38. Annular boss;

[0044] 40. Sliding block; 41. Second through hole;

[0045] 50. Fixed block; 51. First through hole;

[0046] 60. Sealing slider;

[0047] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0049] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0050] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0051] like Figures 1 to 9 As shown, this embodiment provides a hinge, including:

[0052] The female hinge 10 includes a sleeve 30 , an inner wall of which is provided with an annular boss 38 , which divides the shaft hole of the sleeve 30 into an upper shaft hole 36 and a lower shaft hole 37 , and an upper end surface of the annular boss 38 is provided with a first gear surface 33 ;

[0053] The male hinge 20 includes a pin 21. The lower end surface of the pin 21 is provided with a second gear surface 22 that cooperates with the first gear surface 33. The pin 21 is configured to be inserted into the upper shaft hole 36 so as to be rotatable in the circumferential direction and slidable in the axial direction, so that the first gear surface 33 and the second gear surface 22 are meshed, and the pin 21 is sealed and connected to the upper shaft hole 36.

[0054] The fixing block 50 is provided with a plurality of first through holes 51 for liquid circulation. The fixing block 50 is configured to be fixedly inserted into the lower shaft hole 37 and sealed with the lower shaft hole 37;

[0055] The sliding block 40 is provided with a plurality of second through holes 41 for liquid circulation. The sliding block 40 is configured to be axially slidably inserted into the lower shaft hole 37 between the fixed block 50 and the annular boss 38 and sealedly connected to the lower shaft hole 37. When the sliding block 40 is in contact with the fixed block 50, the first through holes 51 and the second through holes 41 do not overlap at all.

[0056] The sealing slider 60 is configured to be axially slidably inserted into the lower shaft hole 37 below the fixed block 50 and sealed with the lower shaft hole 37. The lower shaft hole 37 is provided with a limiting device to prevent the sealing slider 60 from falling off;

[0057] The inner wall of the lower shaft hole 37 is provided with a vertical groove 34 for liquid circulation. The vertical groove 34 is configured as follows: when the sliding block 40 and the fixed block 50 are inserted into the lower shaft hole 37 and the sliding block 40 and the fixed block 50 are in contact with each other, the highest point of the vertical groove 34 is higher than the sliding block 40, and the distance between the lowest point of the vertical groove 34 and the fixed block 50 is greater than the thickness of the sealing slider 60.

[0058] This embodiment provides a hinge for a vehicle door or other applicable revolving door. For example, a vehicle door or a revolving door in a room can both use the hinge provided by this embodiment. This embodiment uses a vehicle door as an example to describe the hinge's usage, installation process, and technical principles.

[0059] like Figure 1 As shown, the hinge provided in this embodiment includes a male hinge 20 and a female hinge 10. It should be understood that the male hinge 20 cooperates with the female hinge 10 to realize the function of rotating to open the door. The female hinge 10 is connected and fixed to the vehicle body, and the upper shaft hole 36 of the shaft sleeve 30 faces upward. The male hinge 20 is connected and fixed to the vehicle door, and the pin shaft 21 faces downward.

[0060] The female hinge 10 includes a sleeve 30, and the male hinge 20 includes a pin 21 installed in cooperation with the sleeve 30. The inner wall of the sleeve 30 is provided with an annular boss 38, and the annular boss 38 divides the axial hole of the sleeve 30 into an upper axial hole 36 and a lower axial hole 37. On the one hand, the annular boss 38 plays a role in supporting the pin 21. On the other hand, the upper end face of the annular boss 38 is provided with a first gear surface 33, and the lower end face of the pin 21 is provided with a second gear surface 22 that cooperates with the first gear surface 33. When the pin 21 is assembled in the upper axial hole 36 of the sleeve 30, the first gear surface 33 is meshed with the second gear surface 22, which plays a role in limiting the pin 21. When the pin 21 is rotated to any angle, the first gear surface 33 and the second gear surface 22 can be meshed, thereby achieving the effect of multi-angle limiting.

[0061] The lower shaft hole 37 of the sleeve 30 is provided with a sliding block 40, a fixed block 50 and a sealing slider 60 from top to bottom. The sliding block 40 can slide up and down along the lower shaft hole 37, the fixed block 50 is fixedly installed relative to the lower shaft hole 37, and the sealing slider 60 can slide up and down relative to the lower shaft hole 37. The sliding block 40, the fixed block 50 and the sealing slider 60 are all sealed with the lower shaft hole 37, and the pin 21 is sealed with the upper shaft hole 36, so that a closed chamber is formed between the shaft hole of the sleeve 30, the lower end surface of the pin 21 and the sealing slider 60.

[0062] The fixed block 50 is provided with a plurality of first through holes 51, and the sliding block 40 is provided with a plurality of second through holes 41. The first through holes 51 and the second through holes 41 are both used for liquid circulation, and when the sliding block 40 and the fixed block 50 are in contact with each other, the first through holes 51 and the second through holes 41 do not overlap, so as to ensure that when the sliding block 40 and the fixed block 50 are in contact with each other, the liquid does not flow through the first through holes 51 and the second through holes 41.

[0063] The inner wall of the lower shaft hole 37 is provided with a vertical groove 34. The purpose of the vertical groove 34 is to prevent liquid from flowing through the first and second through-holes 51, 41 when the sliding block 40 and the fixed block 50 are in contact, and the liquid can only flow slowly through the vertical groove 34. Therefore, when the sliding block 40 and the fixed block 50 are in contact, the highest point of the vertical groove 34 should be higher than the sliding block 40 to ensure that the liquid can flow slowly through the vertical groove 34 when the sliding block 40 and the fixed block 50 are in contact.

[0064] For example, a plurality of vertical grooves 34 may be uniformly arranged along the circumference of the lower shaft hole 37 . The specific number of vertical grooves 34 may be 4 or 3. It should be understood that the depth of the vertical grooves 34 should not be too deep or too wide to ensure smooth flow of liquid through the vertical grooves 34 .

[0065] It should be understood that the distance between the lowest point of the vertical groove 34 and the fixed block 50 should be greater than the thickness of the sealing slider 60. This is because, when installing the hinge provided by this embodiment, liquid needs to be injected into the sleeve 30. During the process of pressing the pin 21, the liquid needs to be able to be discharged from the vertical groove 34 from the closed chamber formed between the axial hole of the sleeve 30, the lower end surface of the pin 21, and the sealing slider 60, thereby ensuring the normal assembly of the pin 21. Therefore, during the installation process, the sealing slider 60 needs to be pressed upward to near the fixed block 50, so that the lowest end of the vertical groove 34 is below the sealing slider 60. In this way, the liquid in the sleeve 30 can flow out of the closed chamber during the process of pressing the pin 21 into the sleeve 30, thereby ensuring the normal pressing of the sleeve 30.

[0066] The following describes the installation method of the hinge provided in this embodiment. The specific assembly method is as follows:

[0067] First, press the sliding block 40 into the lower shaft hole 37 of the shaft sleeve 30, then press the fixing block 50 into the lower shaft hole 37 of the shaft sleeve 30 and fix it, press the sealing slider 60 into the lower shaft hole 37 of the shaft sleeve 30 to a position close to the fixing block 50, and pass the lower end of the vertical groove 34, and then install the limit device to the lower part of the lower shaft hole 37 to prevent the sealing slider 60 from falling out.

[0068] For example, the limiting device is a detachable baffle disposed on the inner wall of the lower shaft hole 37, and the baffle is connected to the lower shaft hole 37 by a thread. Figure 6 As shown, the limiting device can also be a protruding point 35 on the inner wall. The protruding point 35 can be added later. Specifically, after the sliding block 40, the fixed block 50, and the sealing slider 60 are installed in the lower shaft hole 37, force can be applied from the outside of the sleeve 30 to stamp the outer wall of the sleeve 30 so that the protruding point 35 can be stamped out on the inner wall of the sleeve 30. This method is simple and low-cost.

[0069] Next, liquid is injected from the upper end of the upper shaft hole 36 of the sleeve 30 until it is full. Then, the sealing slider 60 is supported from the lower end and slowly pressed into the pin 21 of the male hinge 20. During the process of pressing the pin 21, excess liquid can be discharged through the vertical groove 34 of the lower shaft hole 37. After the liquid residual volume meets the design requirements, the sealing slider 60 is released and the pin 21 is pressed into its working position. At this time, the sealing slider 60 slides down to its working position due to the liquid pressure, and the installation is complete. The female hinge 10 is connected and fixed to the vehicle body with the upper shaft hole 36 of the sleeve 30 facing upward, and the male hinge 20 is connected and fixed to the vehicle door with the pin 21 facing downward.

[0070] It should be noted that the design requirements for the liquid residue in the closed chamber are as follows: when the first gear surface 33 at the lower end of the pin shaft 21 is engaged with the second gear surface 22, the sealing slider 60 should be lower than the lowest point of the vertical groove 34, thereby ensuring that the liquid will not flow out of the closed chamber from the vertical groove 34. Furthermore, when the first gear surface 33 at the lower end face of the pin shaft 21 is separated from the second gear surface 22, that is, when the pin shaft 21 moves to the highest point, the sealing slider 60 should also be lower than the lowest point of the vertical groove 34, thereby ensuring that the liquid will not flow out of the closed chamber from the vertical groove 34.

[0071] It should be understood that the liquid may be a liquid such as engine oil.

[0072] The working principle of the hinge of this embodiment during use will be described in detail below, specifically as follows:

[0073] When opening or closing the car door, the hinge of the present application needs to overcome the meshing resistance between the first gear surface 33 and the second gear surface 22, push the car door, and make the car door drive the pin shaft 21 to rotate, thereby making the second gear surface 22 at the lower end of the pin shaft 21 slide out from the first gear surface 33, and the pin shaft 21 is pushed upward as the second gear surface 22 slides out, and the first gear surface 33 and the second gear surface 22 change from a meshing state to a separated state.

[0074] It should be understood that since the pin 21, the sliding block 40, and the sealing slider 60 are all sealed and connected to the sleeve 30, a closed space is formed in the sleeve 30. When the pin 21 moves upward, the air pressure in the closed space is less than the external atmospheric pressure. The sealing slider 60 slides upward due to the pressure of the external atmosphere, and pushes the liquid in the closed space to move upward. The sliding block 40 is impacted by the liquid and slides upward, so that the sliding block 40 is separated from the fixed block 50, so that the liquid flows upward directly through the first through hole 51 and the second through hole 41. Under the support of the liquid, the first gear surface 33 and the second gear surface 22 of the pin 21 remain separated, and the rotation of the car door is not affected by the gear structure and there is no sense of jerkiness.

[0075] During the rotation of the car door, although the pin shaft 21 moves downward under the action of gravity between the car door and the male hinge 20, the sliding block 40 will return to the position in contact with the fixed block 50 under the action of gravity because the liquid stops flowing upward. Since the first through hole 51 and the second through hole 41 do not overlap at all when the sliding block 40 is in contact with the fixed block 50, the liquid can only flow slowly through the vertical groove 34 on the inner wall of the lower shaft hole 37, thereby causing the pin shaft 21 to fall slowly. Through this delayed return method, during the normal opening and closing process, the gear structure is always in a semi-separated state, and the gear structure has little effect on the rotation, so there is no sense of frustration.

[0076] When the door is opened or closed to a position to be maintained, the door stops rotating, so that the pin 21 slowly resets. After resetting, the first gear surface 33 engages with the second gear surface 22 to provide a limiting force value so that the door can be normally maintained at any angle.

[0077] In summary, the hinge of the present application does not require additional limiters, and the hinge itself can provide multi-angle limits. At the same time, when the car door is opened or closed continuously through the limit angle, a delayed return mechanism is used to reduce the sense of frustration and improve customer feel.

[0078] It should be understood that the sleeve 30 of the female hinge 10 provides a mounting structure for the pin 21 of the male hinge 20, and the shape and pattern of the remaining components are not critical. The pin 21 and sleeve 30 fit tightly together, allowing for rotational and vertical movement, while maintaining a tight seal to prevent leakage of liquid. The shape and pattern of the remaining components are not critical.

[0079] The first gear surface 33 is meshed with the second gear surface 22. When the male hinge 20 has a relative rotational force, the friction between the first gear surface 33 and the second gear surface 22 and the gravity of the vehicle door and the male hinge 20 must be overcome first, so that the male hinge 20 drives the vehicle door to move upward. The door can only rotate after the first gear surface 33 and the second gear surface 22 are disengaged. The resistance during the process is the limiting force of the vehicle door.

[0080] It should be understood that the design principle of the first gear surface 33 and the second gear surface 22 can determine the number of teeth according to the required door limit angle, determine the side slope of the teeth according to the required limit force and the required lifting amount, and the gears of the first gear surface 33 and the second gear surface 22 cannot produce self-locking phenomenon when rotating to ensure that the door can rotate normally.

[0081] In some embodiments, combined Figure 3 As shown, the distance between the lowest point of the vertical groove 34 and the limiting device is greater than the sum of the thickness of the sealing slider 60 and the tooth height of the first gear surface 33 .

[0082] It should be understood that during the upward movement of the pin 21, the sealing slider 60 will also move upward under the influence of atmospheric pressure. The sliding distance of the sealing slider 60 is the same as the upward movement of the pin 21. The upward movement height of the pin 21 is substantially the same as the tooth height of the first gear surface 33. Therefore, the upward movement distance of the sealing slider 60 is also approximately equal to the tooth height of the first gear surface 33. Therefore, in this embodiment, the distance between the lowest point of the vertical groove 34 and the stopper is greater than the sum of the thickness of the sealing slider 60 and the tooth height of the first gear surface 33. This ensures that the lowest point of the vertical groove 34 does not lie below the sealing slider 60 during the upward movement of the sealing slider 60, thereby preventing liquid from flowing out of the enclosed space through the vertical groove 34. In this embodiment, the lowest end of the working position of the sealing slider 60 is close to the stopper.

[0083] For example, when the first gear surface 33 is meshed with the second gear surface 22, the distance between the sealing slider 60 and the lowest point of the vertical groove 34 is greater than the tooth height of the first gear surface 33, thereby ensuring that the sealing slider 60 will not cross the lowest point of the vertical groove 34 during the process of moving upward with the pin shaft 21, thereby ensuring that the liquid in the closed chamber will not flow out.

[0084] In some embodiments, the female hinge 10 includes a mounting hole 11, into which a sleeve 30 is removably inserted. An annular stop 31 is provided on the outer wall of the upper end of the sleeve 30. The upper end surface of the annular stop 31 is provided with at least two countersunk holes for receiving bolts along its circumference. The female hinge 10 is provided with at least two threaded holes corresponding to the countersunk holes on the outer edge of the mounting hole 11. A first external thread is provided on the outer wall of the lower end of the sleeve 30. When the sleeve 30 is installed in the mounting hole 11, the first external thread is exposed outside the mounting hole 11.

[0085] In this embodiment, the sleeve 30 is manufactured as a separate component, taking into account the ease of machining, as well as the different materials and machining schedules used for the sleeve 30 compared to the other parts of the female hinge 10. The female hinge 10 is provided with a mounting hole 11 for mounting the sleeve 30. The sleeve 30 is removably mounted in the mounting hole 11. If the sleeve 30 becomes damaged during use, it can be easily replaced while the rest of the female hinge 10 remains in use, reducing maintenance costs.

[0086] Furthermore, considering the specific connection method between the sleeve 30 and the mounting hole 11, an annular stop 31 is provided on the outer wall of the upper edge of the sleeve 30. The annular stop 31 is provided with multiple countersunk holes. The female hinge 10 is provided with multiple threaded holes on the outer edge of the mounting hole 11. The threaded holes and the countersunk holes are arranged correspondingly. Bolts are used to securely connect the sleeve 30 to the mounting hole 11 and facilitate disassembly. For example, the number of countersunk holes is 2, 3, 4, or 5, and the number of threaded holes is also 2, 3, 4, or 5.

[0087] To further enhance the reliability of the assembly between the sleeve 30 and the mounting hole 11, a first external thread is provided on the exterior of the lower end of the sleeve 30. When the sleeve 30 is assembled in the mounting hole 11, the first external thread is exposed outside the mounting hole 11, thereby enabling the lower end of the sleeve 30 to be secured using a nut that engages with the first external thread. Of course, the lower end of the sleeve 30 can also be secured using other methods. For example, after the sliding block 40, the fixing block 50, and the sealing slider 60 are installed, the lowermost end of the sleeve 30 is riveted to form a flanged boss 32 to secure the sleeve 30 to the mounting hole 11.

[0088] In some embodiments, the outer wall of the pin 21 is provided with a first annular groove for mounting a sealing ring. The outer wall of the sliding block 40 is provided with a second annular groove for mounting a sealing ring, and the outer wall of the sealing slider 60 is provided with a third annular groove for mounting a sealing ring. The outer wall of the fixed block 50 is provided with a second external thread, and the lower shaft hole 37 is provided with an internal thread that mates with the external thread. The fixed block 50 is fixedly connected to the lower shaft hole 37 via threads. The outer wall of the fixed block 50 is provided with a fourth annular groove for mounting a sealing ring. The first through hole 51 is a special-shaped hole.

[0089] Taking into account the sealing connection between the pin 21, the sliding block 40, the sealing slider 60 and the sleeve 30, in this embodiment, a first annular groove is provided on the outer wall of the pin 21. When the pin 21 is assembled to the upper shaft hole 36 of the sleeve 30, the first annular sealing ring 23 is installed in the first annular groove, and then the pin 21 is assembled to the upper shaft hole 36 to realize the sealing connection between the pin 21 and the upper shaft hole 36. This structure is similar to the piston structure of an engine.

[0090] Furthermore, a second annular groove is provided on the outer wall of the sliding block 40. When the sliding block 40 is assembled to the lower shaft hole 37 of the sleeve 30, a second annular sealing ring is installed in the second annular groove, thereby realizing sliding sealing between the sliding block 40 and the lower shaft hole 37. The secondary structure is similar to the piston structure of an engine.

[0091] Furthermore, a third annular groove is provided on the outer wall of the sealing slider 60. When the sealing slider 60 is assembled to the lower shaft hole 37 of the shaft sleeve 30, a third annular sealing ring is installed in the third annular groove, thereby realizing sliding sealing between the sealing slider 60 and the lower shaft hole 37. The secondary structure is similar to the piston structure of an engine.

[0092] Furthermore, considering the connection method between the fixed block 50 and the lower shaft hole 37, the outer wall of the fixed block 50 is provided with a second external thread, and the lower shaft hole 37 is provided with an internal thread matching the second external thread. The fixed block 50 and the lower shaft hole 37 are fixedly connected by threads, and a fourth annular groove is provided on the outer wall of the fixed block 50. When the fixed block 50 is assembled to the lower shaft hole 37 of the sleeve 30, a fourth annular sealing ring is installed in the fourth annular groove, thereby achieving a sealing effect between the fixed block 50 and the lower shaft hole 37.

[0093] It should be understood that, since the fixing block 50 needs to be screwed into the lower shaft hole 37 , the first through hole 51 on the fixing block 50 can be processed into a special-shaped hole to facilitate the rotational installation of the fixing block 50 through the special-shaped hole.

[0094] In another embodiment, the present application provides a car including a door connected to the car body via the hinge. For other structures and working principles of the hinge, please refer to the above description of the hinge embodiment, which will not be repeated here.

[0095] In this application, unless otherwise specified or limited, terms such as "assembly" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0096] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined. And the descriptions of terms such as "some embodiments" and "exemplarily" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application.

[0097] The illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0098] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent covered by this application.

Claims

1. A hinge, characterized in that: include: A female hinge, the female hinge comprising a shaft sleeve, an inner wall of the shaft sleeve being provided with an annular boss, the annular boss dividing the shaft hole of the shaft sleeve into an upper shaft hole and a lower shaft hole, and an upper end surface of the annular boss being provided with a first gear surface; a male hinge comprising a pin, wherein the lower end surface of the pin is provided with a second gear surface that cooperates with the first gear surface, the pin being configured to be inserted into the upper shaft hole so as to be rotatable in the circumferential direction and slidable in the axial direction, and to mesh the first gear surface with the second gear surface, and the pin being sealedly connected to the upper shaft hole; A fixed block, the fixed block is provided with a plurality of first through holes for liquid circulation, the fixed block is configured to be fixedly inserted into the lower shaft hole and sealed with the lower shaft hole; a sliding block, the sliding block being provided with a plurality of second through holes for liquid circulation, the sliding block being configured to be axially slidably inserted into the lower shaft hole between the fixed block and the annular boss and sealedly connected to the lower shaft hole, and when the sliding block is in contact with the fixed block, the first through holes and the second through holes do not completely overlap; A sealing slider, the sealing slider being configured to be axially slidably inserted into the lower shaft hole below the fixed block and sealed with the lower shaft hole, the lower shaft hole being provided with a limiting device for preventing the sealing slider from falling off; The inner wall of the lower shaft hole is provided with a vertical groove for liquid circulation, and the vertical groove is configured as follows: when the sliding block and the fixed block are inserted into the lower shaft hole and the sliding block is in contact with the fixed block, the highest point of the vertical groove is higher than the sliding block, and the distance between the lowest point of the vertical groove and the fixed block is greater than the thickness of the sealing slider.

2. The hinge according to claim 1, characterized in that The distance between the lowest point of the vertical groove and the limiting device is greater than the sum of the thickness of the sealing slider and the tooth height of the first gear surface.

3. The hinge according to claim 1, wherein: The female hinge includes a mounting through hole, and the shaft sleeve is detachably inserted into the mounting through hole.

4. The hinge according to claim 3, characterized in that An annular limit platform is provided on the outer wall of the upper end of the sleeve, and the upper end surface of the annular limit platform is provided with at least two countersunk holes for passing bolts along its circumference, and the female hinge is provided with at least two threaded holes corresponding to the countersunk holes at the outer edge of the mounting through hole.

5. The hinge according to claim 4, characterized in that The outer wall of the lower end of the sleeve is provided with a first external thread. When the sleeve is installed in the installation through hole, the first external thread is exposed outside the installation through hole.

6. The hinge according to claim 1, wherein: The outer side wall of the pin shaft is provided with a first annular groove for installing a sealing ring.

7. The hinge according to claim 6, characterized in that The outer side wall of the sliding block is provided with a second annular groove for installing a sealing ring, and the outer side wall of the sealing sliding block is provided with a third annular groove for installing a sealing ring.

8. The hinge according to claim 7, wherein: The outer wall of the fixing block is provided with a second external thread, the lower axial hole is provided with an internal thread matching the second external thread, the fixing block and the lower axial hole are fixedly connected by threads, and the outer wall of the fixing block is provided with a fourth annular groove for installing a sealing ring.

9. The hinge according to any one of claims 1 to 8, characterized in that: The first through hole is a special-shaped hole.

10. An automobile, characterized in that: The vehicle comprises a door connected to a vehicle body via the hinge according to any one of claims 1 to 9.

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