Hinge

Abstract

The utility model relates to a hinge which comprises a first hinge piece, a second hinge piece and a mandrel, one side of the first hinge piece is provided with at least two first sleeves arranged at intervals, one side of the second hinge piece is provided with a second sleeve corresponding to the position between the two adjacent first sleeves, and the hinge further comprises a first shaft sleeve and a second shaft sleeve. The upper end of the mandrel is provided with a first matching part which is rotatably matched with the first sleeve at the uppermost end of the first hinge piece, the lower end of the mandrel is provided with a second matching part which is rotatably matched with the first sleeve at the lowermost end of the first hinge piece, and the diameter of the first matching part and the diameter of the second matching part are smaller than the diameter of the mandrel; the mandrel is located in the second sleeve and fixedly connected with the second sleeve, and the first shaft sleeve is located in the first sleeve at the uppermost end of the first hinge piece and fixedly connected with the first sleeve. By the adoption of the technical scheme, the hinge is firm in structure, can normally operate after disasters such as fire disasters and is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, especially a hinge. BACKGROUND

[0002] Hinges are usually two-folded, composed of a pair of metal or non-metal leaves connected by a shaft pin, and are components that connect two parts of an object and enable them to move.

[0003] The existing hinge usually includes a first hinge piece and a second hinge piece, one side of the first hinge piece is provided with at least two first sleeves arranged at intervals, one side of the second hinge piece is provided with a second sleeve corresponding to the space between the two adjacent first sleeves, further comprising a shaft core, the shaft core is arranged in the second sleeve and fixedly connected with the second sleeve, the upper end of the shaft core is inserted into the first sleeve at the upper end of the first hinge piece, the lower end of the shaft core is inserted into the first sleeve at the lower end of the first hinge piece, and the two ends of the shaft core are rotatably connected with the corresponding first sleeves.

[0004] However, these existing hinges are easily damaged and fall off after being affected by disasters such as fire, affecting use, and causing doors and windows to be unable to be normally used. SUMMARY

[0005] The utility model discloses a hinge, which is firm in structure and can normally operate after being affected by disasters such as fire, and is not affected.

[0006] The utility model discloses a hinge, which is firm in structure and can normally operate after being affected by disasters such as fire, and is not affected.

[0007] The hinge has high overall strength and stable structure, can normally operate and is not affected even after disasters such as fire, the diameters of the first matching part and the second matching part are smaller than the mandrel, so that there is a gap between the first matching part and the first sleeve, the shaft sleeve is arranged outside the matching part, the outer side wall of the shaft sleeve is knurled, and the shaft sleeve is tightly matched with the first sleeve, so that the mandrel can be protected.

[0008] Further settings of the utility model: still include at least two wear -resisting ring, the upper and lower both ends of second sleeve are equipped with first counterbore, two wear -resisting ring are located in corresponding first counterbore, and the end face of first sleeve is on wear -resisting ring, and first matching part and second matching part extend to first sleeve through corresponding wear -resisting ring.

[0009] The further settings reduce the wear between the first sleeve and the second sleeve, when the wear -resisting ring is assembled in the first counterbore, part protrudes the second sleeve, is first stressed on wear -resisting ring during use, direct contact of metal is avoided, noise is generated, and service life is improved.

[0010] Further settings of the utility model: the mandrel includes first shaft body and second shaft body arranged in a split mode, the first matching part is arranged at the upper end of the first shaft body, the lower end of the first shaft body is fixedly connected with the second sleeve, the second matching part is arranged at the lower end of the second shaft body, the upper end of the second shaft body is fixedly connected with the second sleeve, and the end portions of the two shaft bodies located in the second sleeve abut.

[0011] The further settings are convenient to install and are uniformly stressed, when assembling, the first shaft body is assembled from top to bottom, the second shaft body is assembled from bottom to top, the lower end face of the first shaft body abuts against the upper end face of the second shaft body, during use, the first shaft body is stressed to the second shaft body direction, and the second shaft body is stressed to the first shaft body direction, so that the hinge structure is firm.

[0012] Further settings of the utility model: steps are arranged on the two matching parts, the first shaft sleeve and the second shaft sleeve are arranged outside the corresponding matching parts, the shaft sleeve abuts against the steps, and the end face of the matching part abuts against the inner end face of the shaft sleeve.

[0013] The further settings make the structure between the shaft sleeve and the mandrel stable, and do not affect the rotation of the mandrel.

[0014] Further settings of the utility model: two end caps are further included, the two end caps include horizontal parts and vertical parts, the outer circumferential surface of the vertical part is provided with a knurled structure, the vertical part is fixedly connected with the first sleeve, and the horizontal part is arranged on the end portion of the first sleeve.

[0015] With the further setting, the end cap is tightly fitted between the knurl structure and the first sleeve pipe, the structure is firm, and the end cap arranged at the end of the first sleeve pipe can cover the first sleeve pipe, and the appearance is more beautiful.

[0016] The further setting of the utility model is: the first sleeve pipe at the uppermost end of the first hinge piece and the first sleeve at the lowermost end of the first hinge piece are internally provided with second counterbores, the horizontal part of the end cap is arranged on the end face of the second counterbores, and the end part of the end cap is flush with the end part of the first sleeve pipe.

[0017] With the further setting, the appearance is more beautiful, welding is not needed, installation is convenient, and the anti-theft effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a specific embodiment assembly diagram when the end cap is large size;

[0019] Figure 2 The utility model discloses a specific embodiment assembly diagram when the end cap is small size;

[0020] Figure 3 The utility model discloses a specific embodiment schematic diagram of the shaft body and the shaft sleeve;

[0021] Figure 4 The utility model discloses a specific embodiment schematic diagram of the end cap and the first sleeve pipe when the end cap is small size;

[0022] Figure 5 The utility model discloses a specific embodiment schematic diagram of the end cap and the first sleeve pipe when the end cap is large size;

[0023] Figure 6 The utility model discloses a specific embodiment schematic diagram of the second sleeve pipe and the wear -resisting ring.

[0024] In the drawing, 1, first hinge piece;11, first sleeve pipe;111, second counterbore;2, second hinge piece;21, second sleeve pipe;211, first counterbore;3, mandrel;31, first matching part;311, step face;32, second matching part;33, first shaft body;34, second shaft body;4, first shaft sleeve;5, second shaft sleeve;6, wear -resisting ring;7, end cap;71, horizontal part;72, vertical part. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiment will be described clearly and completely in combination with the drawings, and obviously, the described embodiment is only a 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 person skilled in the art without creative labor belong to the range of the utility model protection.

[0026] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] like Figures 1-6As shown, a hinge, comprising a first hinge leaf 1, a second hinge leaf 2 and a mandrel 3, at least two first sleeves 11 are arranged on one side of the first hinge leaf 1, a second sleeve 21 is arranged between the two adjacent first sleeves 11 on one side of the second hinge leaf 2, further comprising a first shaft sleeve 4 and a second shaft sleeve 5, the upper end of the mandrel 3 is provided with a first matching part 31 which is rotationally matched with the uppermost first sleeve 11 of the first hinge leaf 1, the lower end of the mandrel 3 is provided with a second matching part 32 which is rotationally matched with the lowermost first sleeve 11 of the first hinge leaf 1, the diameters of the first matching part 31 and the second matching part 32 are smaller than the diameter of the mandrel 3, the mandrel 3 is located in the second sleeve 21 and is fixedly connected with the second sleeve 21, the first shaft sleeve 4 is located in the uppermost first sleeve 11 of the first hinge leaf 1 and is fixedly connected with the first sleeve 11, the first shaft sleeve 4 is sleeved on the outer periphery of the first matching part 31 and is rotationally matched with the first matching part 31, the second shaft sleeve 5 is located in the lowermost first sleeve 11 of the first hinge leaf 1 and is fixedly connected with the first sleeve 11, the second shaft sleeve 5 is sleeved on the outer periphery of the second matching part 32 and is rotationally matched with the second matching part 32, so that the overall strength of the hinge is high and the structure is stable, even after being affected by disasters such as fire, the hinge can still operate normally and is not affected, the diameters of the first matching part 31 and the second matching part 32 are smaller than the diameter of the mandrel 3, so that there is a gap between them and the first sleeve 11, facilitating the rotation of the first hinge leaf 1, the shaft sleeve is sleeved on the matching part, the outer side wall of the shaft sleeve is knurled and tightly matched with the first sleeve 11, which can protect the mandrel 3. Both the matching parts are provided with a stepped surface 311, the first shaft sleeve 4 and the second shaft sleeve 5 are sleeved on the corresponding matching parts, the shaft sleeve is abutted on the stepped surface 311, and the end face of the matching part is abutted on the inner end face of the shaft sleeve, so that the structure between the shaft sleeve and the mandrel 3 is stable and the rotation of the mandrel 3 is not affected.

[0030] Further comprising at least two wear-resistant rings 6, the upper and lower ends of the second sleeve 21 are provided with first counterbores 211, the two wear-resistant rings 6 are located in the corresponding first counterbores, the end face of the first sleeve 11 is abutbed on the wear-resistant ring 6, the first matching part 31 and the second matching part 32 extend through the corresponding wear-resistant ring 6 to the first sleeve 11, reducing the wear between the first sleeve 11 and the second sleeve 21, when the wear-resistant ring 6 is assembled in the first counterbores 211, part of it protrudes from the second sleeve 21, and when used, the force is first applied on the wear-resistant ring 6, avoiding direct contact between metals and generating noise, improving the service life.

[0031] The core shaft 3 comprises a first shaft body 33 and a second shaft body 34 arranged in a split mode, the first fitting part 31 is arranged at the upper end of the first shaft body 33, the lower end of the first shaft body 33 is fixedly connected with the second sleeve 21, the second fitting part 32 is arranged at the lower end of the second shaft body 34, the upper end of the second shaft body 34 is fixedly connected with the second sleeve 21, the end portions of the two shaft bodies located in the second sleeve 21 abut against each other, the installation is convenient, the stress is uniform, during the assembly, the first shaft body 33 is assembled from top to bottom, the second shaft body 34 is assembled from bottom to top, the lower end surface of the first shaft body 33 abuts against the upper end surface of the second shaft body 34, during the use, the first shaft body 33 is forced to move towards the second shaft body 34, the second shaft body 34 is forced to move towards the first shaft body 33, so that the hinge structure is firm.

[0032] Further comprising two end caps 7, the end cap 7 comprises a horizontal part 71 and a vertical part 72, the outer circumferential surface of the vertical part 72 is provided with a knurled structure, the vertical part 72 is fixedly connected with the first sleeve 11, two end caps 7 are provided, the sizes of the two end caps 7 are different, the assembly mode of the end cap 7 with large size is that the horizontal part 71 is arranged on the end portion of the first sleeve 11, the end cap 7 is tightly fitted with the first sleeve 11 through the knurled structure, the structure is firm, the assembly mode of the end cap 7 with small size is that the first sleeve 11 at the uppermost end of the first hinge leaf 1 and the first sleeve at the lowermost end of the first hinge leaf 1 are provided with a second counter bore 111, the horizontal part 71 of the end cap 7 is arranged on the end surface of the second counter bore 111, and the end portion of the end cap 7 is flush with the end portion of the first sleeve 11, the appearance is more beautiful, welding is not needed, the installation is convenient, and the anti-theft effect is good.

Claims

1. A hinge comprising a first hinge leaf (1), a second hinge leaf (2) and a core shaft (3), at least two first sleeves (11) being arranged at intervals on one side of the first hinge leaf (1), and a second sleeve (21) being arranged between the two adjacent first sleeves (11) on one side of the second hinge leaf (2), characterized in that, Further comprising a first shaft sleeve (4) and a second shaft sleeve (5), the upper end of the mandrel (3) is provided with a first matching part (31) which is rotationally matched with the first sleeve (11) at the uppermost end of the first hinge leaf (1), the lower end of the mandrel (3) is provided with a second matching part (32) which is rotationally matched with the first sleeve (11) at the lowermost end of the first hinge leaf (1), the diameters of the first matching part (31) and the second matching part (32) are smaller than the diameter of the mandrel (3), the mandrel (3) is located in the second sleeve (21) and is fixedly connected with the second sleeve (21), the first shaft sleeve (4) is located in the first sleeve (11) at the uppermost end of the first hinge leaf (1) and is fixedly connected with the first sleeve (11), the first shaft sleeve (4) is sleeved on the outer periphery of the first matching part (31) and is rotationally matched with the first matching part (31), the second shaft sleeve (5) is located in the first sleeve (11) at the lowermost end of the first hinge leaf (1) and is fixedly connected with the first sleeve (11), the second shaft sleeve (5) is sleeved on the outer periphery of the second matching part (32) and is rotationally matched with the second matching part (32).

2. A hinge according to claim 1, wherein Further comprising at least two wear-resistant rings (6), the upper and lower ends of the second sleeve (21) are each provided with a first counterbore (211), the two wear-resistant rings (6) are located in the corresponding first counterbores, the end face of the first sleeve (11) abuts against the wear-resistant ring (6), the first matching part (31) and the second matching part (32) extend through the corresponding wear-resistant ring (6) into the first sleeve (11).

3. A hinge according to claim 1 or 2, characterised in that The mandrel (3) comprises a first shaft body (33) and a second shaft body (34) which are arranged in a split manner, the first matching part (31) is arranged at the upper end of the first shaft body (33), the lower end of the first shaft body (33) is fixedly connected with the second sleeve (21), the second matching part (32) is arranged at the lower end of the second shaft body (34), the upper end of the second shaft body (34) is fixedly connected with the second sleeve (21), and the end portions of the two shaft bodies located in the second sleeve (21) abut against each other.

4. A hinge according to claim 1 or 2, characterised in that Step surfaces (311) are arranged on the two matching parts, the first shaft sleeve (4) and the second shaft sleeve (5) are sleeved on the outer peripheries of the corresponding matching parts, and the shaft sleeves abut against the step surfaces (311), and the end faces of the matching parts abut against the inner end faces of the shaft sleeves.

5. A hinge according to claim 1 or 2, characterised in that Further comprising two end caps (7), the two end caps (7) comprise horizontal parts (71) and vertical parts (72), the outer periphery of the vertical part (72) is provided with a knurled structure, the vertical part (72) is fixedly connected with the first sleeve (11), and the horizontal part (71) is arranged on the end portion of the first sleeve (11).

6. A hinge according to claim 5, wherein Second counterbores (111) are arranged in the first sleeve (11) at the uppermost end of the first hinge leaf (1) and in the first sleeve at the lowermost end of the first hinge leaf (1), the horizontal part (71) of the end cap (7) is arranged on the end face of the second counterbore (111), and the end portion of the end cap (7) is flush with the end portion of the first sleeve (11).

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