A door and window hinge

Abstract

The utility model discloses a door and window hinge, comprising a first connecting base and a second connecting base, the first connecting base and the second connecting base are rotatably connected, a frame fixing member is arranged on the first connecting base, and a leaf fixing member is arranged on the second connecting base, and the utility model is characterized in that an up-down adjustment mechanism for adjusting the up-down installation position of the door leaf or window leaf is arranged between the frame fixing member and the first connecting base, a left-right adjustment mechanism for adjusting the left-right installation position of the door leaf or window leaf is arranged between the first connecting base and the leaf fixing member, and a front-back adjustment mechanism for adjusting the front-back installation position of the door leaf or window leaf is arranged between the first connecting base and the second connecting base. The utility model has the advantages of simple structure, realizing three-way adjustment of the door and window installation position, making the installation of the door and window more convenient and flexible, and reducing the workload of the door and window installation.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a door and window hinge. Background Art

[0002] A hinge, also known as a hinge, is a mechanical device used to connect two solids and allow them to rotate relative to each other. Door and window hinges are mechanical devices used to be installed on doors and windows to achieve a freely rotatable connection between the door leaf and the door frame or between the window leaf and the window frame. Currently, many hinges for door and window installation on the market cannot be adjusted in the left and right, front and back, and up and down directions (i.e., the X-axis, Y-axis, and Z-axis directions) after installation. When the installation positions of the doors and windows in various directions are misaligned or the installation is not coordinated, and when adjustment is required, the doors and windows can only be disassembled and adjusted, and then reinstalled, which is troublesome and requires a lot of work. In other words, most of the door and window hinges on the market currently have problems with inflexible structures and relatively single functions. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a door and window hinge which has a simple and flexible structure and can be adjusted in three directions according to specific circumstances after installation.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A door and window hinge comprises a first connecting base and a second connecting base, wherein the first connecting base is rotatably connected to the second connecting base, the first connecting base is provided with a frame fixing member for fixedly connecting to a door frame or a window frame, the second connecting base is provided with a sash fixing member for fixedly connecting to a door sash or a window sash, an up and down adjustment mechanism for adjusting the up and down installation position of the door sash or the window sash is provided between the frame fixing member and the first connecting base, a left and right adjustment mechanism for adjusting the left and right installation position of the door sash or the window sash is provided between the first connecting base and the sash fixing member, and a front and rear adjustment mechanism for adjusting the front and rear installation position of the door sash or the window sash is provided between the first connecting base and the second connecting base.

[0006] The first connecting base includes an upper connecting part, a lower connecting part and an intermediate connecting part. The upper connecting part and the lower connecting part are spaced apart from each other and connected through the intermediate connecting part. A rotating connection cavity with a rear opening and passing through left and right is formed between the upper connecting part, the intermediate connecting part and the lower connecting part. A rotating connection part is correspondingly arranged on the second connecting base. A connecting shaft is passed through the rotating connection part. The rotating connection part and the connecting shaft are connected so as to be relatively rotatable. The upper part of the connecting shaft is mounted on the upper connecting part, and the lower part of the connecting shaft is mounted on the lower connecting part, so that the rotating connection part can be rotatably arranged in the rotating connection cavity. The above structure for realizing the rotatable connection between the first connecting base and the second connecting base is simple.

[0007] The up and down adjustment mechanism includes an up and down adjustment waist groove that passes through the front and back on the intermediate connecting part and an up and down adjustment screw that can be movably installed on the lower connecting part in a threaded connection. The lower connecting part is provided with an adjustment cavity that passes through the front and back. The adjustment cavity is provided with an internal thread that matches the rod thread section of the up and down adjustment screw. The rod of the up and down adjustment screw is threadedly arranged in the adjustment cavity. The frame fixing part includes a frame supporting part and a frame adjusting part. The frame supporting part is arranged in the rotating connection cavity and the bottom is supported by the rod end of the up and down adjustment screw. The frame adjusting part is arranged in the up and down adjustment waist groove. The width of the up and down adjustment waist groove in the up and down direction is greater than the width of the frame adjusting part in the up and down direction, so that the first connecting base and the frame fixing part can move relatively up and down. The above-mentioned up and down adjustment mechanism has a simple structure and is easy to adjust. The head of the up and down adjusting screw is provided with a hexagonal hole. The head of the up and down adjusting screw is turned by a matching hexagonal wrench to move the up and down adjusting screw upward or downward. Since the frame fixing part is fixedly installed with the door frame or window frame, the frame fixing part is stationary. Therefore, when the up and down adjusting screw moves upward or downward, it will move the first connecting body downward or upward, and then move the second connecting base downward or upward synchronously, thereby realizing the adjustment of the upper and lower installation positions of the door or window sash.

[0008] The adjustment cavity includes a stroke section and a connecting section with internal threads which are coaxially arranged from bottom to top. The inner diameter of the stroke section is larger than the inner diameter of the connecting section. The width of the stroke section in the vertical direction is larger than the difference between the width of the vertical adjustment waist groove and the frame adjustment part in the vertical direction. The head of the vertical adjustment screw is hidden in the stroke section. The rod of the vertical adjustment screw is threadedly arranged in the connecting section and its end is supported against the bottom of the frame support part. The overall structure is compact and beautiful without any extra protruding parts.

[0009] The bottom of the lower connecting part is detachably mounted with a lower end cover for covering the regulating cavity.

[0010] The front end of the frame adjustment part is protruding forward and is provided with a pre-positioning connection column for matching with the corresponding positioning hole position on the door frame or window frame, and the pre-positioning connection column is extended and arranged outside the upper and lower adjustment waist groove to realize pre-positioning installation.

[0011] The frame fixing member is provided with a fixing connection hole that passes through from front to back. A fixing screw that matches the corresponding fixing screw hole on the door frame or window frame passes through the fixing connection hole and is screwed into the corresponding fixing screw hole to realize the fixed connection installation between the frame fixing member and the door frame or window frame.

[0012] The left-right adjustment mechanism includes a left-right adjustment groove and a left-right adjustment screw arranged on the second connecting base, the left-right adjustment groove is recessed and arranged on the second connecting base, the left and right sides of the left-right adjustment groove respectively form a left mounting wall and a right mounting wall, the left mounting wall is provided with a left connecting hole that passes through the left and right sides, and the right mounting wall is provided with a right connecting hole, the rod portion of the left-right adjustment screw includes a left connecting section, a middle connecting section and a right connecting section that are coaxially arranged in sequence from left to right, the left connecting section and the right connecting section are both smooth straight rods, the middle connecting section is provided with an external thread, and the left connecting section can be rotatably arranged in the left connecting hole The right connecting section is rotatably arranged in the right connecting hole, the middle connecting section is located in the left and right adjusting groove, the sash fixing member includes a sash adjusting part and a sash connecting part, the sash adjusting part is correspondingly provided with a sash adjusting block, the sash adjusting block is arranged in the left and right adjusting groove, the width of the sash adjusting part in the left and right direction is smaller than the width of the left and right adjusting groove in the left and right direction, so that the second connecting base and the sash fixing member can move left and right relative to each other, the sash adjusting block is provided with an inner thread adjusting hole that is through and matches the outer thread on the middle connecting section, and the middle connecting section is screwed in the inner thread adjusting hole. The left and right adjusting mechanism has a simple structure and convenient adjustment operation. The left and right adjusting screws are in a rotatable but non-movable installation state here, the head of the left and right adjusting screws is provided with an inner hexagon hole, and the head of the upper and lower adjusting screws is screwed with a matching inner hexagon wrench to rotate the left and right adjusting screws, and the left and right adjusting screws rotate to move the sash adjusting block left and right, and then the sash fixing member as a whole moves left and right relative to the second connecting base, thereby realizing the adjustment of the left and right installation position of the door or window sash.

[0013] The right connecting section is provided with an annular anti-slipping positioning groove, the second connecting base is provided with an anti-slipping limiting block, the anti-slipping limiting block has a clamping portion, the clamping portion is provided with an opening groove, the clamping portion is clamped in the anti-slipping positioning groove, and the segment corresponding to the anti-slipping positioning groove is rotatably provided in the opening groove, so as to realize the stable installation of the left and right adjusting screws on the second connecting base.

[0014] The second connecting base is provided with a guide installation groove for guiding the movable direction of the fan fixing part, and a guide block is provided at a position corresponding to the guide installation groove on the fan adjusting part. The guide block can be movably embedded in the corresponding guide installation groove, and a guide rod is inserted into the guide block. The guide rod is fixedly installed in the corresponding guide installation groove from left to right, and the guide block can slide left and right relative to the guide rod.

[0015] The sash adjusting part and the sash connecting part are vertically connected to each other to form an L-shaped structure, and the sash connecting part is provided with mounting holes. The connection between the traditional structure and the door sash or window sash is mainly achieved by screwing on the second connecting base. In this way, the left and right position adjustment of the door sash or window sash cannot be achieved, and the screwed part is exposed, which is not beautiful. If you want to cover these screws, you need to set up additional covering sleeves, and there are many parts. We design the sash fixing part as an L-shaped structure. The door sash and window sash are directly connected to the sash fixing part by screwing on the side close to the frame. The screw connection part is not obvious and does not need to be specially covered. At the same time, the left and right installation position of the door sash or window sash can be adjusted by cooperating with the sash adjusting part and the second connecting base.

[0016] The upper part of the connecting shaft is provided with an upper connecting end, the central axis of the upper connecting end is eccentrically arranged relative to the central axis of the connecting shaft, the upper connecting end can be rotatably installed in the upper connecting part, and the top of the upper connecting end is provided with a hexagonal adjustment hole for realizing rotation adjustment; the lower part of the connecting shaft is provided with a lower connecting end, the central axis of the lower connecting end is eccentrically arranged relative to the central axis of the connecting shaft, the lower connecting end can be rotatably installed in the lower connecting part, and the upper connecting end is coaxial with the lower connecting end. The above-mentioned front-to-back adjustment mechanism has a simple structure and is easy to adjust, wherein the cavity on the upper connecting part for matching the installation of the upper connecting end is a vertical through structure, and the hexagonal adjustment hole is inserted through a matching hexagonal wrench, and based on the eccentric structure, the second connecting base can be brought to make position adjustment in the front-to-back direction, thereby realizing the adjustment of the front-to-back installation position of the door leaf or window leaf.

[0017] An upper end cover is detachably mounted on the top of the upper connecting portion to cover the hexagonal adjustment hole.

[0018] The upper connecting end is recessed with an annular locking groove, and the side of the upper connecting part is provided with a locking screw hole at a position corresponding to the locking groove. A locking screw is threadedly installed in the locking screw hole, and the inner end of the locking screw is embedded in the locking groove to lock and fix the upper connecting end. The locking screw plays an anti-rotation locking role to fix the adjusted position. When adjustment is required, the locking effect of the locking screw on the upper connecting end must be released first.

[0019] Compared with the prior art, the advantages of the utility model are: simple structure, the upper and lower installation positions of the door or window sashes can be adjusted by an up and down adjustment mechanism arranged between the frame fixing member and the first connecting base, the left and right installation positions of the door or window sashes can be adjusted by a left and right adjustment mechanism arranged between the first connecting base and the sash fixing member, and the front and rear installation positions of the door or window sashes can be adjusted by a front and rear adjustment mechanism arranged between the first connecting base and the second connecting base, finally realizing three-way adjustment of the installation position of doors and windows, making the installation of doors and windows more convenient and flexible, and reducing the workload of door and window installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a first cross-sectional structural schematic diagram of the utility model;

[0022] Figure 3 It is a second cross-sectional structural schematic diagram of the utility model;

[0023] Figure 4 It is a third cross-sectional structural schematic diagram of the utility model;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the second connecting base and the fan fixing member in the utility model;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the first connecting base in the utility model;

[0026] Figure 7 It is a schematic cross-sectional structural diagram of the first connecting base in the utility model;

[0027] Figure 8 It is a schematic diagram of the exploded structure of the utility model. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] As shown in the figure, a door and window hinge includes a first connecting base 1 and a second connecting base 2, the first connecting base 1 and the second connecting base 2 are rotatably connected, the first connecting base 1 is provided with a frame fixing member 3 for fixedly connecting to a door frame or a window frame, the second connecting base 2 is provided with a sash fixing member 4 for fixedly connecting to a door leaf or a window leaf, an up and down adjusting mechanism for adjusting the up and down installation position of the door leaf or the window leaf is provided between the frame fixing member 3 and the first connecting base 1, a left and right adjusting mechanism for adjusting the left and right installation position of the door leaf or the window leaf is provided between the first connecting base 1 and the sash fixing member 4, and a front and rear adjusting mechanism for adjusting the front and rear installation position of the door leaf or the window leaf is provided between the first connecting base 1 and the second connecting base 2.

[0030] In this specific embodiment, the first connection base 1 includes an upper connection part 11, a lower connection part 12 and an intermediate connection part 13. The upper connection part 11 and the lower connection part 12 are arranged at intervals from top to bottom and connected through the intermediate connection part 13. A rotating connection cavity 14 with a rear opening and passing through left and right is formed between the upper connection part 11, the intermediate connection part 13 and the lower connection part 12. A rotating connection part 20 is correspondingly arranged on the second connection base 2. A connecting shaft 5 is inserted into the rotating connection part 20. The rotating connection part 20 and the connecting shaft 5 are connected to each other in a relatively rotatable manner. The upper part of the connecting shaft 5 is installed on the upper connection part 11, and the lower part of the connecting shaft 5 is installed on the lower connection part 12, so that the rotating connection part 20 can be rotatably arranged in the rotating connection cavity 14. The above structure for realizing the rotatable connection between the first connection base 1 and the second connection base 2 is simple.

[0031] In this specific embodiment, the up and down adjustment mechanism includes an up and down adjustment waist groove 131 that passes through the middle connecting part 13 and is arranged on the middle connecting part 13, and an up and down adjustment screw 6 that can be screwed and installed on the lower connecting part 12 and can be moved up and down. The lower connecting part 12 is provided with an adjustment cavity 121 that passes through the upper and lower parts. The adjustment cavity 121 is provided with an internal thread that matches the rod thread section of the up and down adjustment screw 6. The rod of the up and down adjustment screw 6 is screwed and arranged in the adjustment cavity 121. The frame fixing part 3 includes a frame support part 31 and a frame adjustment part 32. The frame support part 31 is arranged in the rotating connection cavity 14 and the bottom is supported by the rod end of the up and down adjustment screw 6. The frame adjustment part 32 is arranged in the up and down adjustment waist groove 131. The width of the up and down adjustment waist groove 131 in the up and down direction is greater than the width of the frame adjustment part 32 in the up and down direction, so that the first connecting base 1 and the frame fixing part 3 can move relatively up and down. The above-mentioned up and down adjustment mechanism has a simple structure and is easy to adjust. The head of the up and down adjusting screw 6 is provided with a hexagonal hole. The head of the up and down adjusting screw 6 is screwed by a matching hexagonal wrench to move the up and down adjusting screw 6 upward or downward. Since the frame fixing member 3 is fixedly installed with the door frame or window frame, the frame fixing member 3 is stationary. Then, during the upward or downward movement, the up and down adjusting screw 6 will move the first connecting body downward or upward, and then move the second connecting base 2 downward or upward synchronously, thereby realizing the adjustment of the upper and lower installation positions of the door or window sash.

[0032] In this specific embodiment, the adjustment cavity 121 includes a stroke section 1211 and a connecting section 1212 with internal threads which are coaxially arranged from bottom to top. The inner diameter of the stroke section 1211 is larger than the inner diameter of the connecting section 1212. The width of the stroke section 1211 in the vertical direction is larger than the difference between the widths of the upper and lower adjustment waist groove 131 and the frame adjustment portion 32 in the vertical direction. The head of the upper and lower adjustment screw 6 is hidden in the stroke section 1211. The rod of the upper and lower adjustment screw 6 is threadedly arranged in the connecting section 1212 and its end is supported against the bottom of the frame support portion 31. The overall structure is compact and beautiful without any extra protruding parts.

[0033] In this specific embodiment, a lower end cover 15 is detachably mounted on the bottom of the lower connecting portion 12 to cover the adjusting cavity 121 .

[0034] In this specific embodiment, the front end of the frame adjustment portion 32 is protruded forward and provided with a pre-positioning connection column 33 for matching with the corresponding positioning hole position on the door frame or window frame, and the pre-positioning connection column 33 is extended out of the upper and lower adjustment waist groove 131 to achieve pre-positioning installation.

[0035] In this specific embodiment, a fixing connection hole 34 is provided on the frame fixing member 3, which passes through the front and back. A fixing screw matching the corresponding fixing screw hole on the door frame or window frame passes through the fixing connection hole 34 and is screwed into the corresponding fixing screw hole to realize the fixed connection installation between the frame fixing member 3 and the door frame or window frame.

[0036] In this specific embodiment, the left-right adjustment mechanism includes a left-right adjustment groove 21 and a left-right adjustment screw 7 arranged on the second connecting base 2. The left-right adjustment groove 21 is recessed and arranged on the second connecting base 2. The left and right sides of the left-right adjustment groove 21 respectively form a left mounting wall 211 and a right mounting wall 212. The left mounting wall 211 is provided with a left connecting hole 2111 that passes through the left and right sides, and the right mounting wall 212 is provided with a right connecting hole 2121. The rod portion of the left-right adjustment screw 7 includes a left connecting section 71, an intermediate connecting section 72 and a right connecting section 73 that are coaxially arranged in sequence from left to right. The left connecting section 71 and the right connecting section 73 are both smooth straight rods. The intermediate connecting section 72 is provided with an external thread. The left connecting section 71 can rotate The fan fixing member 4 comprises a fan adjusting portion 41 and a fan connecting portion 42. A fan adjusting block 43 is correspondingly arranged on the fan adjusting portion 41. The fan adjusting block 43 is arranged in the left and right adjusting grooves 21. The width of the fan adjusting portion 41 in the left and right directions is smaller than the width of the left and right adjusting grooves 21 in the left and right directions, so that the second connecting base 2 and the fan fixing member 4 can move relatively left and right. The fan adjusting block 43 is provided with an internal threaded adjustment hole (not marked in the figure) which runs through the left and right sides and matches the external thread on the middle connecting section 72. The middle connecting section 72 is screwed and installed in the internal threaded adjustment hole. The above-mentioned left and right adjustment mechanism has a simple structure and is easy to adjust. The left and right adjustment screws 7 are in a rotatable but non-movable installation state here. The heads of the left and right adjustment screws 7 are provided with hexagonal holes. The heads of the upper and lower adjustment screws 6 are screwed with a matching hexagonal wrench to rotate the left and right adjustment screws 7. The rotation of the left and right adjustment screws 7 causes the sash adjustment block 43 to move left and right, and then causes the sash fixing member 4 to move left and right as a whole relative to the second connecting base 2, thereby realizing the adjustment of the left and right installation position of the door sash or window sash.

[0037] In this specific embodiment, an annular anti-dropout positioning groove 731 is recessed on the right connecting section 73, an anti-dropout limiting block 70 is provided on the second connecting base 2, the anti-dropout limiting block 70 has a clamping portion 701, an opening groove 702 is provided on the clamping portion 701, the clamping portion 701 is clamped in the anti-dropout positioning groove 731, and the segment corresponding to the anti-dropout positioning groove 731 is rotatably provided in the opening groove 702. The left and right adjusting screws 7 are stably installed on the second connecting base 2.

[0038] In this specific embodiment, the second connection base 2 is provided with a guide installation groove 22 for guiding the movable direction of the sash fixing member 4, and a guide block 44 is provided at a position corresponding to the guide installation groove 22 on the sash adjustment portion 41. The guide block 44 can be embedded in the corresponding guide installation groove 22 and can be movably inserted in the left and right directions. A guide rod 45 is inserted in the guide block 44, and the guide rod 45 is fixedly inserted in the corresponding guide installation groove 22 from left to right. The guide block 44 can slide left and right relative to the guide rod 45. A stable connection and installation between the sash adjustment portion 41 and the second connection base 2 is achieved, and at the same time, a further guiding effect is played on the left and right movements of the sash fixing member 4.

[0039] In this specific embodiment, the leaf adjustment part 41 and the leaf connection part 42 are vertically connected to each other to form an L-shaped structure, and the leaf connection part 42 is provided with a mounting hole 421. The connection between the traditional structure and the door leaf or window leaf is mainly achieved by screwing the second connection base 2. In this way, the left and right position adjustment of the door leaf or window leaf cannot be achieved, and the screwed part is exposed, which is not beautiful. If you want to cover these screws, you need to set up an additional cover sleeve, and there are many parts. We design the leaf fixing part 4 as an L-shaped structure. The door leaf and window leaf are directly screwed on the side close to the frame to connect with the leaf fixing part. The screw connection part is not obvious and does not need to be specially covered. At the same time, the left and right installation position of the door leaf or window leaf can be adjusted by cooperating with the leaf adjustment part 41 and the second connection base 2.

[0040] In this specific embodiment, an upper connecting end 51 is provided at the upper part of the connecting shaft 5, and the central axis of the upper connecting end 51 is eccentrically arranged relative to the central axis of the connecting shaft 5, and the upper connecting end 51 can be rotatably installed in the upper connecting part 11, and a hexagonal adjustment hole 511 for realizing rotation adjustment is provided at the top of the upper connecting end 51; a lower connecting end 52 is provided at the lower part of the connecting shaft 5, and the central axis of the lower connecting end 52 is eccentrically arranged relative to the central axis of the connecting shaft 5, and the lower connecting end 52 can be rotatably installed in the lower connecting part 12, and the upper connecting end 51 is coaxial with the lower connecting end 52. The above-mentioned front-to-back adjustment mechanism has a simple structure and is easy to adjust. By inserting a matching hexagonal wrench into the hexagonal adjustment hole, based on the eccentric structure, the second connecting base 2 can be brought to make position adjustment in the front-to-back direction, thereby realizing the adjustment of the front-to-back installation position of the door leaf or window leaf.

[0041] In this specific embodiment, an upper end cover 16 is detachably mounted on the top of the upper connecting portion 11 to cover the hexagonal adjustment hole 511 .

[0042] In this specific embodiment, an annular locking groove 512 is recessed on the upper connecting end 51, and a locking screw hole 111 is provided at a position corresponding to the locking groove 512 on the side of the upper connecting portion 11, and a locking screw 10 is threadedly installed in the locking screw hole 111, and the inner end of the locking screw 10 is embedded in the locking groove 512 to lock and fix the upper connecting end 51. The locking screw 10 plays an anti-rotation locking role to fix the adjusted position. When adjustment is required, the locking effect of the locking screw 10 on the upper connecting end 51 must be released first.

Claims

1. A door and window hinge, comprising a first connecting base and a second connecting base, wherein the first connecting base and the second connecting base are rotatably connected, the first connecting base is provided with a frame fixing member for fixing with a door frame or a window frame, and the second connecting base is provided with a sash fixing member for fixing with a door sash or a window sash, characterized in that An up-down adjustment mechanism for adjusting the up-down installation position of the door leaf or window leaf is arranged between the frame fixing member and the first connecting base, a left-right adjustment mechanism for adjusting the left-right installation position of the door leaf or window leaf is arranged between the first connecting base and the leaf fixing member, and a front-back adjustment mechanism for adjusting the front-back installation position of the door leaf or window leaf is arranged between the first connecting base and the second connecting base.

2. A door and window hinge as claimed in claim 1, characterized in that The first connecting base includes an upper connecting part, a lower connecting part and an intermediate connecting part. The upper connecting part and the lower connecting part are spaced apart from each other and connected through the intermediate connecting part. A rotating connecting cavity with a rear opening and passing through left and right is formed between the upper connecting part, the intermediate connecting part and the lower connecting part. A rotating connecting part is correspondingly arranged on the second connecting base. A connecting shaft is passed through the rotating connecting part. The rotating connecting part and the connecting shaft are connected so as to be relatively rotatable. The upper part of the connecting shaft is installed on the upper connecting part, and the lower part of the connecting shaft is installed on the lower connecting part, so that the rotating connecting part can be rotatably arranged in the rotating connecting cavity.

3. A door and window hinge as claimed in claim 2, characterized in that The up and down adjustment mechanism includes an up and down adjustment waist groove that passes through the front and back on the intermediate connecting part and an up and down adjustment screw that can be movably installed on the lower connecting part in a threaded connection. The lower connecting part is provided with an adjustment cavity that passes through the front and back. The adjustment cavity is provided with an internal thread that matches the rod thread section of the up and down adjustment screw. The rod of the up and down adjustment screw is threadedly arranged in the adjustment cavity. The frame fixing part includes a frame supporting part and a frame adjusting part. The frame supporting part is arranged in the rotating connection cavity and the bottom is supported by the rod end of the up and down adjustment screw. The frame adjusting part is arranged in the up and down adjustment waist groove. The width of the up and down adjustment waist groove in the up and down direction is greater than the width of the frame adjusting part in the up and down direction, so that the first connecting base and the frame fixing part can move relatively up and down.

4. A door and window hinge as claimed in claim 3, characterized in that The adjustment chamber includes a stroke section and a connecting section with an internal thread which are coaxially arranged in sequence from bottom to top. The inner diameter of the stroke section is larger than the inner diameter of the connecting section. The width of the stroke section in the up and down direction is larger than the difference between the widths of the up and down adjustment waist groove and the frame adjustment part in the up and down direction. The head of the up and down adjustment screw is hidden in the stroke section. The rod of the up and down adjustment screw is threadedly arranged in the connecting section and its end is supported against the bottom of the frame support part.

5. A door and window hinge as claimed in claim 2, characterized in that The left-right adjustment mechanism includes a left-right adjustment groove and a left-right adjustment screw arranged on the second connecting base, the left-right adjustment groove is recessed and arranged on the second connecting base, the left and right sides of the left-right adjustment groove respectively form a left mounting wall and a right mounting wall, the left mounting wall is provided with a left connecting hole that passes through the left and right sides, and the right mounting wall is provided with a right connecting hole, the rod portion of the left-right adjustment screw includes a left connecting section, a middle connecting section and a right connecting section that are coaxially arranged in sequence from left to right, the left connecting section and the right connecting section are both smooth straight rods, the middle connecting section is provided with an external thread, and the left connecting section can be rotatably arranged in the left connecting hole The right connecting section is rotatably arranged in the right connecting hole, the middle connecting section is located in the left and right adjusting grooves, the fan fixing member includes a fan adjusting portion and a fan connecting portion, the fan adjusting portion is correspondingly provided with a fan adjusting block, the fan adjusting block is arranged in the left and right adjusting grooves, the width of the fan adjusting portion in the left and right direction is smaller than the width of the left and right adjusting grooves in the left and right direction, so that the second connecting base and the fan fixing member can move relatively left and right, the fan adjusting block is provided with an internal threaded adjustment hole that passes through left and right and matches the external thread on the middle connecting section, and the middle connecting section is threadedly installed in the internal threaded adjustment hole.

6. A door and window hinge as claimed in claim 5, characterized in that The right connecting section is recessed with an annular anti-slip positioning groove, the second connecting base is provided with an anti-slip limit block, the anti-slip limit block has a clamping portion, the clamping portion is provided with an open groove, the clamping portion is clamped in the anti-slip positioning groove, and the segment corresponding to the anti-slip positioning groove is rotatably arranged in the open groove.

7. A door and window hinge as claimed in claim 5, characterized in that The second connecting base is provided with a guide installation groove for guiding the movable direction of the fan fixing part, and a guide block is provided at a position corresponding to the guide installation groove on the fan adjusting part. The guide block can be movably embedded in the corresponding guide installation groove, and a guide rod is inserted into the guide block. The guide rod is fixedly installed in the corresponding guide installation groove from left to right, and the guide block can slide left and right relative to the guide rod.

8. A door and window hinge as claimed in claim 5, characterized in that The fan adjusting portion and the fan connecting portion are vertically connected to each other to form an L-shaped structure, and the fan connecting portion is provided with mounting holes.

9. A door and window hinge as claimed in claim 2, characterized in that An upper connecting end is provided at the upper part of the connecting shaft, and the central axis of the upper connecting end is eccentrically arranged relative to the central axis of the connecting shaft. The upper connecting end can be rotatably installed in the upper connecting part, and the top of the upper connecting end is provided with a hexagonal adjustment hole for realizing rotation adjustment; a lower connecting end is provided at the lower part of the connecting shaft, and the central axis of the lower connecting end is eccentrically arranged relative to the central axis of the connecting shaft, and the lower connecting end can be rotatably installed in the lower connecting part, and the upper connecting end is coaxial with the lower connecting end.

10. A door and window hinge as claimed in claim 9, characterized in that The upper connecting end is recessed with an annular locking groove, and the side of the upper connecting part is provided with a locking screw hole at a position corresponding to the locking groove. A locking screw is threadedly installed in the locking screw hole, and the inner end of the locking screw is embedded in the locking groove to lock and fix the upper connecting end.

Images