Limiting type automobile door hinge structure

Abstract

The utility model discloses a limiting type automobile door hinge structure which comprises a movable end and a rotating shaft, the movable end is arranged on the rotating shaft in a sleeved mode through an extension arm, the two ends of the rotating shaft penetrate through the extension arm and the connecting end of a fixing base, fixing nuts are installed on the two sides of the rotating shaft, and the left side face of the connecting end is an inclined face. The limiting type automobile door hinge structure is characterized in that an extending arm is arranged on the connecting end, a mounting part is arranged at the position, close to the inclined face of the connecting end, of the extending arm, the mounting part is connected with a limiting rod in an inserted mode, and the limiting end of the limiting rod is arranged towards the inclined face of the connecting end. In the prior art, a plurality of assemblies need to be additionally arranged in a vehicle door hinge, the assemblies are extremely inconvenient to install in a narrow space, and a plurality of installation hole positions need to be formed in the movable end of the hinge, so that the machining difficulty is increased, and the machining cost is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle door hinges, in particular to a position-limiting vehicle door hinge structure. Background Art

[0002] The car door hinge is an important component connecting the car door and the car body. It ensures that the car door can open and close smoothly and supports the weight of the car door to a certain extent. The common household car hinges on the market are mainly divided into two types: cast hinges and stamped hinges. Cast hinges are usually made by casting process and have high strength and durability, while stamped hinges are manufactured by stamping process, with relatively low cost, but may be slightly inferior to cast hinges in strength. The main function of the hinge is to support the car door, so that the car door can be firmly hung on the car body and allow the car door to open and close. In common door hinges, limit columns are generally fixed on the left and right sides of the movable frame. The rotation angle is limited by the cooperation of the limit columns and the mounting frame to prevent the door from opening and closing at too large an angle and causing damage. However, during long-term use, the limit columns frequently collide with the mounting frame, making the connection between the limit columns and the mounting frame easy to break and damage.

[0003] In the utility model patent with patent announcement number CN217461808U, the limit column can be disassembled and replaced separately through the cooperation of the connecting ring and the side plate. There is no need to replace the entire movable frame when the limit column is damaged. Although the above scheme can solve the problem of replacing the limit column, it also has the problem that due to the split setting of the limit column, multiple components need to be added to the door hinge. The installation of these components is extremely inconvenient in a small space, and multiple installation holes need to be opened in the movable end of the hinge, which increases the difficulty of processing and increases the processing cost.

[0004] Therefore, it is necessary to provide a limited-position automobile door hinge structure to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a limit-type automobile door hinge structure to solve the problem that due to the split setting of the limit column in the existing mechanism, multiple components need to be added in the door hinge, and the installation of these components is extremely inconvenient in a small space, and multiple installation holes need to be opened in the movable end of the hinge, which increases the difficulty of processing and the cost of processing.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A limited-position automobile door hinge structure comprises: a movable end and a rotating shaft;

[0008] The movable end is sleeved on the rotating shaft through an extension arm, and both ends of the rotating shaft pass through the connecting ends of the extension arm and the fixed seat. Fixing nuts are installed on both sides of the rotating shaft. The left side surface of the connecting end is an inclined surface. A mounting part is installed at the inclined surface of the extension arm close to the connecting end. The mounting part is plugged into the limit rod, and the limit end of the limit rod is arranged toward the inclined surface of the connecting end, and the extension part of the limit rod abuts against the inclined surface.

[0009] In one embodiment, the mounting portion is composed of a mounting tube, a positioning column, a positioning groove, and a rectangular opening. The front end surface of the mounting tube is open, and the inner wall surface of the mounting tube is installed with a positioning column coaxially arranged therewith. The outer peripheral surface of the positioning column is provided with positioning grooves in a circular array, and the positioning grooves are rectangular grooves. The mounting tube is provided with a rectangular opening on the side facing the limit rod.

[0010] In one embodiment, the limit rod is composed of a horizontal section, a plug tube, a plug rod, and an inclined section. The left side of the horizontal section is connected to the plug tube. The inside of the plug tube is a through hole. The inner circumference of the plug tube is arranged with plug rods in a circular array. The plug tube, the plug rod, the positioning column, and the positioning groove are plug-in connected. The sizes of the four are matched. The right end of the horizontal section is connected to the inclined section, and the right side surface of the inclined section fits with the inclined surface of the connecting end.

[0011] In one embodiment, a rubber strip is bonded to the surface where the inclined section abuts against the connecting end, and the rubber strip is made of hard rubber.

[0012] In one embodiment, a cover plate is installed on the front end surface of the mounting tube, the cover plate and the mounting tube are screwed together, and a stopper is installed on the inner side surface of the cover plate, and the diameter of the stopper is larger than the diameter of the insertion tube.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model limits the hinge by abutting the inclined section of the limit rod against the inclined surface of the connecting end. When the two are in abutment, the door is at the maximum opening degree of the hinge. When it is necessary to replace the limit rod, the cover plate is unscrewed from the installation tube, the limit rod is taken out horizontally, and the insert tube is separated from the positioning column, so that the limit rod can be replaced separately.

[0015] (2) The utility model provides a rubber strip to provide a shock protection buffer for the limit rod, thereby increasing the service life of the limit rod. The inner side surface of the stopper abuts against the front end surface of the insert tube, thereby limiting the insert tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the utility model;

[0017] Figure 2 This is a front view detail diagram of the utility model;

[0018] Figure 3 This is a detailed view of the installation end and the limit rod of the utility model.

[0019] Among them, the names corresponding to the figure marks are: movable end 1, extension arm 11, rotating shaft 2, fixing nut 21, fixing seat 3, connecting end 31, mounting part 4, mounting tube 41, positioning column 42, positioning groove 43, rectangular opening 44, cover plate 45, block 46, limiting rod 5, horizontal section 51, insertion tube 52, insertion rod 53, inclined section 54, rubber strip 55. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0021] like Figure 1-Figure 2 As shown, the utility model provides a position-limiting automobile door hinge structure, comprising: a movable end 1, a rotating shaft 2, a fixing seat 3, a mounting portion 4, and a position-limiting rod 5;

[0022] like Figure 1-Figure 2 As shown, the movable end 1 is sleeved on the rotating shaft 2 through the extension arm 11, and the two ends of the rotating shaft 2 pass through the extension arm 11 and the connecting end 31 of the fixing seat 3. Fixing nuts 21 are installed on both sides of the rotating shaft 2. The left side surface of the connecting end 31 is an inclined surface. The extension arm 11 is installed with a mounting portion 4 at the inclined surface close to the connecting end 31. The mounting portion 4 is plugged into the limiting rod 5, and the limiting end of the limiting rod 5 is arranged toward the inclined surface of the connecting end 31. The extending portion of the limiting rod 5 abuts against the inclined surface. Through the arrangement of the two mounting portions 4 and the two limiting rods 5, there is no need to install a complicated fixing mechanism inside the hinge, so that the production and installation of the hinge are simplified.

[0023] Preferably, in one embodiment, Figure 3 As shown, the mounting portion 4 is composed of a mounting tube 41, a positioning column 42, a positioning groove 43, and a rectangular opening 44. The front end surface of the mounting tube 41 is open, and the inner wall surface of the mounting tube 41 is installed with a positioning column 42 coaxially arranged therewith. The outer peripheral surface of the positioning column 42 is provided with positioning grooves 43 in a ring array, and the positioning grooves 43 are rectangular grooves. The mounting tube 41 is provided with a rectangular opening 44 on the side facing the limiting rod 5.

[0024] Preferably, in one embodiment, Figure 3As shown, the limit rod 5 is composed of a horizontal section 51, a plug tube 52, a plug rod 53, and an inclined section 54. The left side of the horizontal section 51 is connected to the plug tube 52. The inside of the plug tube 52 is a through hole. The inner circumference of the plug tube 52 is arranged with plug rods 53 in a ring array. The plug tube 52, the plug rod 53 and the positioning column 42 and the positioning groove 43 are plug-in connected. The sizes of the four are matched. The right side end of the horizontal section 51 is connected to the inclined section 54. The right side surface of the inclined section 54 is in contact with the inclined surface of the connecting end 31. When the two are in contact, the door is at the maximum opening degree of the hinge.

[0025] Preferably, in one embodiment, Figure 3 As shown, a rubber strip 55 is bonded to the surface where the inclined section 54 abuts the connecting end 31 . The rubber strip 55 is made of hard rubber. The rubber strip 55 provides impact protection and buffering for the limiting rod 5 , thereby increasing the service life of the limiting rod 5 .

[0026] Preferably, in one embodiment, Figure 3 As shown, a cover plate 45 is installed on the front end face of the mounting tube 41, and the cover plate 45 and the mounting tube 41 are screwed into each other, and a stopper 46 is installed on the inner side face of the cover plate 45, and the diameter of the stopper 46 is larger than the diameter of the insert tube 52. After the stopper 46 is installed, the inner side face abuts against the front end face of the insert tube 52, thereby limiting the insert tube 52.

[0027] Working principle of this utility model:

[0028] During operation, the inclined section 54 of the limit rod 5 abuts against the inclined surface of the connecting end 31 to limit the hinge. When the two abut, the door is at the maximum opening degree of the hinge. When the limit rod 5 needs to be replaced, the cover plate 45 is unscrewed from the mounting tube 41, the limit rod 5 is taken out horizontally, and the insert 52 is separated from the positioning column 42, so that the limit rod 5 can be replaced separately.

[0029] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A limited-position automobile door hinge structure, It is characterized in that include: Active end, rotating shaft; The movable end is sleeved on the rotating shaft through an extension arm, and both ends of the rotating shaft pass through the connecting ends of the extension arm and the fixed seat. Fixing nuts are installed on both sides of the rotating shaft. The left side surface of the connecting end is an inclined surface. A mounting part is installed at the inclined surface of the extension arm close to the connecting end. The mounting part is plugged into the limit rod, and the limit end of the limit rod is arranged toward the inclined surface of the connecting end, and the extension part of the limit rod abuts against the inclined surface.

2. A position-limiting automobile door hinge structure according to claim 1, It is characterized in that The mounting portion consists of a mounting tube, a positioning column, a positioning groove, and a rectangular opening. The front end surface of the mounting tube is open, and the inner wall surface of the mounting tube is installed with a positioning column coaxially arranged therewith. The outer peripheral surface of the positioning column is provided with positioning grooves in a circular array, and the positioning grooves are rectangular grooves. The mounting tube is provided with a rectangular opening on the side facing the limit rod.

3. A position-limiting automobile door hinge structure according to claim 2, It is characterized in that The limit rod is composed of a horizontal section, a plug tube, a plug rod, and an inclined section. The left side of the horizontal section is connected to the plug tube. The inside of the plug tube is a through hole. The inner circumference of the plug tube is arranged with plug rods in a circular array. The plug tube, the plug rod, the positioning column, and the positioning groove are plug-in connected. The sizes of the four are matched. The right end of the horizontal section is connected to the inclined section, and the right side surface of the inclined section fits with the inclined surface of the connecting end.

4. A position-limiting automobile door hinge structure according to claim 3, It is characterized in that A rubber strip is bonded to the surface where the inclined section abuts against the connecting end, and the rubber strip is made of hard rubber.

5. A position-limiting automobile door hinge structure according to claim 2, It is characterized in that A cover plate is installed on the front end surface of the mounting tube, and the cover plate and the mounting tube are screwed in connection with each other through threads. A stopper is installed on the inner side surface of the cover plate, and the diameter of the stopper is larger than the diameter of the insertion tube.

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