Special square tube door shaft hinge

Abstract

The utility model relates to the technical field of square tube door shaft hinges, in particular to a special square tube door shaft hinge which comprises a main shaft, a bearing is rotationally connected to the outer portion of the main shaft, a connecting mechanism is welded to one side of the outer portion of the bearing, and a hinge base mechanism is installed on one side of the connecting mechanism. The connecting mechanism comprises a fixing block welded to the outer wall of the bearing, a vertical rod is welded to the top of the fixing block, the vertical rod is sleeved with a connecting block, and the top of the vertical rod is in threaded connection with a nut and an improved hinge. The position of the adjusting plate is moved according to the thickness of the square tube door shaft body, stress distribution during opening and closing is more uniform, stable supporting is provided, the connecting mechanism is installed between the bearing and the hinge base, a traditional welding mode is replaced, the hinge base mechanism and the bearing are rapidly disassembled and assembled, the whole structure is of a split type structure, and the structure is simple. And the later maintenance cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to square tube door axle hinge technical field, concretely is a special square tube door axle hinge. BACKGROUND

[0002] Square tube door axle hinge is a kind of hinge system specially used for square tube door, it combines the function of square tube structure and hinge, to make door leaf freely rotate in door frame, compared with traditional round hinge, square tube door axle hinge is more adaptable to square tube door frame in design, can provide better support and stability, the design of square tube door axle hinge is usually matched with square tube door frame structure, can maximize the strength and stability of square material, avoid the unstable situation caused by the mismatching of round hinge and square tube shape, the inventor finds that the prior art has the following problems in the process of realizing the utility model:

[0003] 1, the design of the existing square tube door axle hinge is usually based on the square tube of specific thickness and specification, if the wall thickness of square tube is different, the hinge cannot be adjusted, then the hinge cannot be correctly installed on the pipe material, even if forcibly installed, it cannot provide enough contact surface and stable support;

[0004] 2, the welding mode between hinge seat and bearing, after assembly, it cannot be disassembled, if wear or failure occurs in some part during use, due to the disassembly of both, the whole hinge system needs to be replaced, and the maintenance cost is high. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a special square tube door axle hinge to solve the problem that it cannot be reasonably adjusted according to the wall thickness of square tube, so that it is more adaptable, and the hinge seat cannot be disassembled, and the maintenance cost is high. To achieve the above object, the utility model provides the following technical scheme: a special square tube door axle hinge, including main shaft, the outside rotation of main shaft is connected with bearing, the outside one side welding of bearing is connected with connecting mechanism, the one side of connecting mechanism is equipped with hinge seat mechanism.

[0006] The connecting mechanism includes fixed block welded with the outer wall of bearing, vertical rod is welded on the top of fixed block, connecting block is sleeved on the outside of vertical rod, and nut is screw-connected on the top of vertical rod.

[0007] The hinge seat mechanism includes outer frame, the front surface of outer frame is screw-connected with bolt, the inside of outer frame is slidably connected with adjusting plate, the side surface of adjusting plate is inserted with limiting rod, and the front surface of outer frame is rotationally connected with lead screw.

[0008] Further preferably, the connecting mechanism is provided with three groups, the hinge seat mechanism is provided with two groups, and the hinge seat mechanism and the bearing and the main shaft form a rotating structure through the connecting mechanism.

[0009] Further preferably, the lower half of the vertical rod is provided with a square cross section, and the upper half of the vertical rod is provided with a circular cross section.

[0010] Further preferably, one side of the outer frame is provided with a square opening, and the outer frame and the connecting block are welded.

[0011] Further preferably, the vertical center line of the hinge seat mechanism is parallel to the vertical center line of the main shaft.

[0012] Further preferably, the limiting rod is provided with two, and the limiting rod and the inner wall of the outer frame are welded.

[0013] Further preferably, the screw rod and the middle part of one side of the adjusting plate are connected in a threaded manner, and the adjusting plate and the inner wall of the outer frame are parallel.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] In the utility model, the rotating screw rod can drive the adjusting plate to move horizontally, the position of the adjusting plate is adjusted according to the thickness of the square tube door shaft body, and the moving process is always parallel to the inner wall of the outer frame; after the square tube door shaft body is clamped and fixed by the adjusting plate and the inner wall, the contact surface between the adjusting plate and the outer wall of the square tube door shaft body is more uniform, the stress distribution is more uniform when the square tube door shaft body is opened and closed, and stable support is provided.

[0016] In the utility model, the connecting mechanism is installed between the bearing and the hinge seat, the connecting block is provided with a square hole slot, after the connecting block is inserted along the vertical rod, the square part at the bottom of the vertical rod limits the connecting block, the screw cap is rotated and screwed, and the screw cap is prevented from loosening; the hinge seat mechanism can be installed, when disassembled, the screw cap is unscrewed, and the connecting block is pulled out; the traditional welding mode is replaced, the hinge seat mechanism and the bearing are quickly disassembled and assembled, the whole is provided with a split type structure, and the maintenance cost is low in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the utility model after being closed;

[0018] Figure 2 It is a structure schematic view of the utility model after being opened;

[0019] Figure 3 It is a structure schematic view of the hinge seat mechanism of the utility model;

[0020] Figure 4The utility model discloses a connecting mechanism and bearing structure schematic diagram.

[0021] Figure 5 The utility model discloses a connecting mechanism explosion structure schematic diagram.

[0022] In the drawing: 1, main shaft, 2, bearing, 3, connecting mechanism, 301, fixed block, 302, vertical rod, 303, connecting block, 304, nut, 4, hinge seat mechanism, 401, outer frame, 402, bolt, 403, adjusting plate, 404, limit rod, 405, screw rod. Specific embodiments

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative work belong to the scope of the utility model protection.

[0024] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: a special square tube door axis hinge, including main shaft 1, bearing 2 is rotatably connected to the outside of main shaft 1, connecting mechanism 3 is welded to the outside one side of bearing 2, hinge seat mechanism 4 is installed on the side of connecting mechanism 3.

[0025] Connecting mechanism 3 includes fixed block 301 welded with the outer wall of bearing 2, vertical rod 302 is welded on the top of fixed block 301, connecting block 303 is sleeved on the outside of vertical rod 302, nut 304 is threadedly connected on the top of vertical rod 302.

[0026] Hinge seat mechanism 4 includes outer frame 401, bolt 402 is threadedly connected on the front of outer frame 401, adjusting plate 403 is slidably connected in the inside of outer frame 401, limit rod 404 is inserted in the side of adjusting plate 403, screw rod 405 is rotatably connected on the front of outer frame 401.

[0027] In the embodiment, as shown in Figure 1 And Figure 2 Connecting mechanism 3 is provided with three groups, hinge seat mechanism 4 is provided with two groups, and hinge seat mechanism 4 forms rotating structure with bearing 2 and main shaft 1 through connecting mechanism 3;It needs to be explained that three connecting mechanisms 3 are connected with three bearings 2 one by one respectively, the connecting mechanism 3 at upper and lower ends is connected with the hinge seat mechanism 4 on left side, the connecting mechanism 3 in middle part is connected with the hinge seat mechanism 4 on right side, two hinge seat mechanisms 4 are connected through connecting mechanism 3, rotate along main shaft 1, realize free rotation in certain angle range.

[0028] In the embodiment, asFigure 4 and Figure 5 As shown in the figure, the lower half of the vertical rod 302 is square in cross section, and the upper half of the vertical rod 302 is circular in cross section; it should be noted that the inside of the connecting block 303 is provided with a square hole slot, and after the connecting block 303 is inserted along the vertical rod 302, the square part at the bottom of the vertical rod 302 limits the connecting block 303, and the nut 304 is screwed in to prevent loosening. When the bearing 2 rotates along the main shaft 1, the entire hinge seat mechanism 4 is driven to rotate synchronously. Through the connection of the connecting block 303, the traditional welding is replaced, and the disassembly and assembly are more flexible.

[0029] In this embodiment, as shown in the figure, Figure 2 As shown in the figure, one side of the outer frame 401 is provided with a square opening, and the outer frame 401 and the connecting block 303 are welded; it should be noted that the square opening of the outer frame 401 is used to butt joint the square tube door shaft body part, and the connecting block 303 and the outer frame 401 are welded to provide stable support force for the outer frame 401.

[0030] In this embodiment, as shown in the figure, Figure 1 and Figure 2 As shown in the figure, the vertical center line of the hinge seat mechanism 4 is parallel to the vertical center line of the main shaft 1; it should be noted that the center position of the main shaft 1 is unchanged, and when the hinge seat mechanism 4 rotates around the main shaft 1 as the center, it can be opened and closed by 180°, and the vertical center lines of the two are parallel, which ensures the stability of the rotation process.

[0031] In this embodiment, as shown in the figure, Figure 3 As shown in the figure, two limit rods 404 are provided, and the limit rods 404 and the inner wall of the outer frame 401 are welded; it should be noted that the two limit rods 404 are located at the upper and lower ends of the inner wall of the outer frame 401, and the two limit rods 404 support the adjusting plate 403.

[0032] In this embodiment, as shown in the figure, Figure 3 As shown in the figure, the screw rod 405 is threadedly connected with the middle part of one side of the adjusting plate 403, and the adjusting plate 403 and the inner wall of the outer frame 401 are parallel; it should be noted that when the screw rod 405 is rotated, the adjusting plate 403 can be horizontally moved, the position of the adjusting plate 403 is moved according to the thickness of the square tube door shaft body, and the moving process is always parallel to the inner wall of the outer frame 401. After the square tube door shaft body is clamped and fixed by the two, the contact surface between the adjusting plate 403 and the outer wall of the square tube door shaft body is more uniform, the stress distribution is more uniform during opening and closing, and stable support is provided.

[0033] The use method and advantages of the special square tube door shaft hinge are as follows:

[0034] AsFigure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown in the drawings, first, the hinge seat mechanism 4 is installed on the connecting mechanism 3, the connecting block 303 is vertically inserted along the top of the vertical rod 302 until it is attached to the bottom of the fixed block 301, the screw cap 304 is screwed in clockwise, the connecting block 303 is compressed, then according to the thickness of the square tube door shaft body, the left hinge seat mechanism 4 is butt jointed on the movable door plate, the position of the adjusting plate 403 is moved, when the door shaft body is narrow, the front of the lead screw 405 is provided with a cross slot, which can be rotated by means of a screwdriver, the lead screw 405 is rotated clockwise, the adjusting plate 403 is close to the inner wall of one side of the outer frame 401, until the inner wall of the outer frame 401 and the front of the adjusting plate 403 clamp and fix the square tube door shaft body, when the door shaft body is thick, the lead screw 405 is rotated counterclockwise, the screw bolt 402 is rotated and screwed into the front of the outer frame 401, the other end of the screw bolt 402 is designed as a sharp head, which can penetrate the outer wall of the door shaft body of the square tube movable door plate, finally, the other side of the hinge seat mechanism 4 is butt jointed to the fixed door plate.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A special square tube door hinge, comprising a main shaft (1), characterized in that: The main shaft (1) is externally rotatably connected to a bearing (2), and a connecting mechanism (3) is welded to one side of the bearing (2). A hinge seat mechanism (4) is installed on one side of the connecting mechanism (3). The connecting mechanism (3) includes a fixing block (301) welded to the outer wall of the bearing (2), a vertical rod (302) welded to the top of the fixing block (301), a connecting block (303) sleeved on the outside of the vertical rod (302), and a nut (304) threaded to the top of the vertical rod (302). The hinge seat mechanism (4) includes an outer frame (401), with bolts (402) threadedly connected to the front of the outer frame (401), an adjusting plate (403) slidably connected inside the outer frame (401), a limit rod (404) inserted into the side of the adjusting plate (403), and a lead screw (405) rotatably connected to the front of the outer frame (401).

2. The special square tube door hinge according to claim 1, characterized in that: The connecting mechanism (3) has three sets, and the hinge seat mechanism (4) has two sets. The hinge seat mechanism (4) forms a rotating structure with the bearing (2) and the main shaft (1) through the connecting mechanism (3).

3. The special square tube door hinge according to claim 1, characterized in that: The lower half of the vertical rod (302) has a square cross-section, and the upper half of the vertical rod (302) has a circular cross-section.

4. A special square tube door hinge according to claim 1, characterized in that: The outer frame (401) has a square opening on one side, and the outer frame (401) and the connecting block (303) are welded together.

5. A special square tube door hinge according to claim 1, characterized in that: The vertical center line of the hinge seat mechanism (4) is set to be parallel to the vertical center line of the main shaft (1).

6. A special square tube door hinge according to claim 1, characterized in that: There are two limiting rods (404), and the inner walls of the limiting rods (404) and the outer frame (401) are welded together.

7. A special square tube door hinge according to claim 1, characterized in that: The lead screw (405) is connected to the middle of one side of the adjusting plate (403) by a threaded connection, and the adjusting plate (403) and the inner wall of the outer frame (401) are set as parallel structures.

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