Quick release type safety hinge

Abstract

The utility model provides a quick release type safety hinge. The quick release type safety hinge comprises a plug pin assembly and a sleeve, the plug pin assembly comprises a fixing base, a pin shaft and a safety jackscrew. The plug pin assembly is fixed to the side portion of the window sash in the mode that the end face of the head end of the fixing base is opposite to the sleeve. The fixing base is provided with a containing cavity and a first screw hole, the cross section of the containing cavity is matched with the cross section of the pin shaft, an opening of the containing cavity is located in the end face of the head end of the fixing base, and the first screw hole penetrates through the containing cavity from the outer side face of the fixing base; the pin shaft is arranged in the accommodating cavity, and the pin shaft slides in the accommodating cavity, so that the head end of the pin shaft extends out of the end surface of the head end of the fixed seat and is inserted into the sleeve; the safety jackscrew is connected into the first screw hole in a threaded mode and is locked and fixed through a pin shaft with the head end inserted into the sleeve, so that the window sash is installed on the hinge supporting arm. According to the utility model, the window sash can be quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the field of building hardware, and more particularly to a quick-detachable safety hinge. Background Art

[0002] The disassembly of traditional casement screens is cumbersome. It is usually necessary to first loosen the screws and clamping pieces that fix the hinge to the frame, and then loosen the screws and clamping pieces that fix the hinge to the sash. The re-installation steps are also relatively complicated. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a quick-release safety hinge in view of the complicated installation and disassembly problems of the above-mentioned casement screen window.

[0004] The technical solution of the utility model for solving the above-mentioned technical problems is to provide a quick-release safety hinge, including a latch assembly for being mounted on a window sash and a sleeve for being mounted on a hinge support arm; the latch assembly includes a fixing seat, a pin shaft and a safety top screw, and the latch assembly is fixed to the side of the window sash in a manner that the end face of the head end of the fixing seat is opposite to the sleeve; the fixing seat has a receiving cavity and a first screw hole, the cross section of the receiving cavity is adapted to the cross section of the pin shaft, and the opening of the receiving cavity is located on the end face of the head end of the fixing seat, and the first screw hole passes through the outer side surface of the fixing seat to the receiving cavity; the pin shaft is installed in the receiving cavity, and the pin shaft slides in the receiving cavity so that the head end of the pin shaft extends to the end face of the head end of the fixing seat and is inserted into the sleeve; the safety top screw is threadedly connected to the first screw hole, and is locked and fixed by inserting the head end of the pin shaft into the sleeve, so that the window sash is mounted on the hinge support arm.

[0005] As a further improvement of the present invention, the outer side surface of the fixing seat has a slide groove arranged along the length direction of the accommodating cavity, and the slide groove extends from the surface of the outer side surface of the fixing seat to the accommodating cavity;

[0006] The latch assembly includes a shift block, which includes a push plate and a first sliding portion connected to the lower surface of the push plate. The shift block is installed on the fixed seat in such a manner that the push plate is located on the outer surface of the fixed seat and the first sliding portion is fixed to the pin shaft after passing through the slide groove. The head end of the pin shaft is retracted into the accommodating cavity by pushing the shift block to slide along the slide groove.

[0007] As a further improvement of the present invention, the pin shaft is cylindrical as a whole, and the outer wall of the tail of the pin shaft has a slot, and the first sliding block portion of the shift block passes through the slot and is engaged in the slot of the pin shaft.

[0008] As a further improvement of the present invention, an annular groove is provided on the surface of the pin shaft, and the annular groove is distributed along the circumference of the pin shaft. When the annular groove is opposite to the first screw hole, the head end of the pin shaft protrudes out of the accommodating cavity, and the safety top screw locks and fixes the pin shaft by being embedded in the annular groove.

[0009] As a further improvement of the present invention, the latch assembly includes an elastic member, which is installed in the accommodating cavity and pushes the pin shaft so that the head end of the pin shaft extends out of the opening of the accommodating cavity.

[0010] As a further improvement of the present invention, the outer side surface of the fixing seat has a boss, and the first screw hole passes through the top of the boss to the accommodating cavity.

[0011] As a further improvement of the present invention, the latch assembly includes a clamping piece and a screw, the tail of the fixing seat has a second screw hole, the second screw hole passes through the outer side surface of the fixing seat to the inner side surface, and the clamping piece is riveted and fixed to the tail end of the screw threadedly connected to the second screw hole; the fixing seat is clamped and fixed to the C-shaped groove on the side of the window sash by the clamping piece.

[0012] As a further improvement of the present invention, the inner side surface of the fixing seat has a second sliding block portion, and when the fixing seat is installed on the side of the window sash, the second sliding block portion is embedded in the C-shaped groove on the side of the window sash.

[0013] As a further improvement of the present invention, the head end of the pin shaft includes an inserting section for inserting into the sleeve, and the cross-sectional size of the inserting section gradually decreases from the root to the free end.

[0014] As a further improvement of the present invention, the sleeve includes a tubular portion and a fixing portion located at the tail end of the tubular portion, the sleeve is fixed to the hinge support arm through the fixing portion, and the tubular portion protrudes from the surface of the hinge support arm.

[0015] The utility model has the following beneficial effects: the pin shaft on the fixing seat is locked and fixed by the safety top screw, so that the head end of the pin shaft is kept inserted into the sleeve of the hinge support arm, thereby realizing the rapid disassembly and assembly of the window sash. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a quick-release safety hinge provided by an embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of the exploded structure of the quick-release safety hinge provided by an embodiment of the utility model.

[0018] Figure 3It is a schematic cross-sectional structural diagram of a fixing seat in a quick-release safety hinge provided by an embodiment of the present utility model.

[0019] Figure 4 It is a structural schematic diagram of the outer surface of the fixing seat in the quick-release safety hinge provided by an embodiment of the present utility model.

[0020] Figure 5 It is a schematic cross-sectional view of the quick-release safety hinge provided by an embodiment of the utility model.

[0021] Figure 6 It is a schematic diagram of the matching structure of the pin, push block and sleeve in the quick-release safety hinge provided by an embodiment of the utility model.

[0022] Figure 7 It is a structural schematic diagram of the quick-release safety hinge provided by an embodiment of the present utility model being assembled to a window frame and a window sash.

[0023] 10 Hinge 11 Support Arm

[0024] 20 sleeve 21 tubular portion

[0025] 22 fixing portion 30 latch assembly

[0026] 31 fixed seat 311 accommodating cavity

[0027] 312 first screw hole 313 slide groove

[0028] 314 boss 315 second screw hole

[0029] 316 Second slider portion 32 Pin

[0030] 321 annular groove 322 slot

[0031] 323 plug-in section 33 safety screw

[0032] 34 elastic member 35 shift block

[0033] 351 Push plate 352 First slider

[0034] 36 Clamping piece 37 Screw

[0035] 40 Window frame profile 50 Sash frame profile DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] like Figure 1-4 The figure is a schematic diagram of the structure of the quick-release safety hinge provided by an embodiment of the present invention. The quick-release safety hinge can be used to assemble window sashes that are relatively light in weight and need to be frequently disassembled and assembled, such as screen windows, to hinges. The quick-release safety hinge of this embodiment includes a sleeve 20 and a latch assembly 30, wherein the latch assembly 30 can be installed to the window sash (for example, the side of the window sash frame), and the sleeve 20 can be installed to the support arm 11 of the hinge 10. The window sash can be installed by the cooperation of the latch assembly 30 and the sleeve 20. Specifically, in combination with Figure 7 As shown, the hinge 10 can be installed on the window frame profile 40, and in addition to the support arm 11, the hinge 10 also includes a bottom bar, a first rotating arm, and a second rotating arm, wherein the bottom bar is fixedly mounted on the window frame profile 40, the two ends of the first rotating arm are respectively hingedly connected to the bottom bar and the support arm, and the two ends of the second rotating arm are respectively hingedly connected to the bottom bar and the support arm, and the sleeve 20 is fixed to one end of the support arm close to the bottom bar and is vertically arranged; the pin assembly 30 is fixed to the side of the window sash profile 50 and is located directly above or directly below the sleeve.

[0038] The latch assembly 30 includes a fixing seat 31, a pin shaft 32, and a safety screw 33. The latch assembly 30 is fixed to the side of the window sash via the fixing seat 31. After the latch assembly 30 is fixed to the window sash, the end surface of the fixing seat 31 at the head end faces the sleeve 20 fixed to the bracket 11 of the hinge 10, that is, the fixing seat 31 is located directly above or below the sleeve 20. The fixing seat 31 can be specifically made of a hard material such as metal. The fixing seat 31 has a receiving cavity 311 and a first screw hole 312. The receiving cavity 311 is generally elongated, and the cross section of the receiving cavity 311 matches the cross section of the pin shaft 32. The opening of the receiving cavity 311 is located at the end surface of the head end of the fixing seat 31, that is, the receiving cavity 311 is composed of a blind hole with an opening located at the end surface of the head end of the fixing seat 31. The first screw hole 312 passes through the outer side surface of the fixing base 31 and reaches the accommodating cavity 311 . That is, the first screw hole 312 is in communication with the accommodating cavity 311 .

[0039] The pin 32 is installed in the accommodating cavity 311, that is, the length of the pin 32 is less than the length of the accommodating cavity 311, and the pin 32 can slide in the accommodating cavity 311. By sliding along the accommodating cavity 311, its head end extends to the end surface of the head end of the fixing seat 31 and is inserted into the sleeve. The safety screw 33 is threaded into the first screw hole 312 and is used to lock and fix the pin 32 with its head end inserted into the sleeve 20, so that the head end of the pin 32 remains in the sleeve 20, thereby mounting the window sash to the bracket 11 of the hinge 10, as shown in FIG. Figure 5 The safety screw 33 may be cylindrical with external threads as a whole, and the front end of the safety screw 33 may be conical, and the rear end may have a driving groove (eg, a hexagonal groove).

[0040] When installing the window sash to the window frame, the above-mentioned quick-release safety hinge only needs to first fix the sleeve 20 and the pin assembly 30 to the support arm 11 and the window sash profile respectively, and then insert the head end of the pin shaft 32 in the pin assembly 30 into the sleeve 20, and tighten the safety top screw 33 to lock and fix the pin shaft 32, so that the head end of the pin shaft 32 remains inserted into the sleeve 20 of the support arm 11 of the hinge 10, thereby realizing rapid assembly of the window sash; when the window sash needs to be removed, it is only necessary to loosen the safety top screw 33, and then retract the pin shaft 32 into the accommodating cavity 311 of the fixing seat 31 to remove the window sash, which greatly facilitates the installation and disassembly of the window sash.

[0041] like Figure 3 、 Figure 4 As shown, in one embodiment of the present invention, the outer side surface of the fixing seat 31 has a slide groove 313, which is arranged along the length direction of the accommodating cavity 311, and the slide groove 313 extends from the outer side surface of the fixing seat 31 to the accommodating cavity 311. Figure 6 As shown, the shift block 35 includes a push plate 351 and a first slider portion 352, wherein the first slider portion 352 is connected to the lower surface of the push plate 351. When the shift block 35 is installed on the fixed seat 31, the push plate 351 is located on the outer surface of the fixed seat 31, and the first slider portion 352 is fixed to the pin 32 after passing through the slide groove 313. In addition, the pin can be controlled to extend and retract by pushing the shift block 35 along the slide groove 313, for example, so that the head end of the pin 32 is retracted into the accommodating cavity 311. The structure of the slide groove 313 and the shift block 35 cooperate to better control the sliding of the pin 32, thereby facilitating the disassembly and assembly of the window sash. In particular, the outer surface of the push plate 351 can have anti-slip grooves to facilitate the pushing operation of the shift block 35.

[0042] Those skilled in the art will appreciate that the length of the aforementioned slot 313 is adapted to the travel of the pin 32 within the accommodating chamber 311. Specifically, when the shift block 35 is pushed to one end of the slot 313, the head end of the pin 32 is completely retracted into the accommodating chamber 311 (i.e., the pin 32 no longer protrudes from the head end of the fixing seat 31). When the shift block 35 is moved to the other end of the slot 313, the head end of the pin 32 extends out of the accommodating chamber 311 to its maximum extent (i.e., it is fully inserted into the sleeve 20). In actual applications, the slot 313 may also be located on another side of the fixing seat 31 (i.e., on a different side of the fixing seat 31 than the first screw hole 312). Accordingly, the shift block 35 is also located on a different side from the first screw hole 312.

[0043] like Figure 6As shown, in one embodiment of the present invention, the pin 32 is generally cylindrical (in actual application, the pin 32 may also have other shapes, as long as it can slide within the accommodating cavity 311), and the outer wall of the tail end of the pin 32 has a slot 322. The first slider portion 352 of the shift block 35 passes through the slot 313 and is engaged in the slot 322 of the pin 32. This structure facilitates the fixation of the shift block 35 and the pin 32.

[0044] Specifically, the first slider portion 352 of the shift block 35 may have two elastic arms, and the free sections of the two elastic arms have hooks disposed in opposite directions. The first slider portion 352 is elastically engaged with the slot 322 of the pin 32 through the elasticity of the elastic arms, thereby ensuring the coupling strength between the shift block 35 and the pin 32. Of course, in actual applications, the first slider portion 352 may also be fixed to the pin 32 by other means.

[0045] In one embodiment of the present invention, the latch assembly 30 further includes an elastic member 34 mounted within the accommodating chamber 311. The elastic member 34 has two ends that respectively abut against the pin 32 and the inner wall of the accommodating chamber 311, pushing the pin 32 so that the head end of the pin 32 extends out of the opening of the accommodating chamber 311 (when the pin 32 is not subjected to any other external force). The elastic member 34 prevents the pin 32 from sliding freely within the accommodating chamber 311 when no external force is applied (for example, when the window sash is moved), and maintains the head end of the pin 32 within the sleeve 20 to a certain extent.

[0046] Specifically, the elastic member 34 can be formed of a compression spring mounted at the rear end of the pin 32. Furthermore, the elastic member 34 can also be mounted on the shift block 35, which can also prevent the pin 32 from sliding freely within the accommodating cavity 311 when no external force is applied. In practical applications, the elastic member 34 can also be a spring.

[0047] like Figure 3 、 Figure 4 As shown, in one embodiment of the present invention, the outer side surface of the fixing base 31 has a boss 314, and the first screw hole 312 extends from the top of the boss 314 to the accommodating cavity 311. The provision of the boss 314 increases the travel of the safety screw 33 while maintaining a relatively small overall thickness of the fixing base 31, and better locks or releases the pin 32 in the accommodating cavity 311 while maintaining structural strength.

[0048] In particular, the boss 314 is located between the slide groove 313 and the end surface of the first end of the fixing seat 31 , that is, the first screw hole 312 is disposed close to the opening of the accommodating cavity 311 , thereby better locking the fixing pin shaft 32 .

[0049] like Figure 6As shown, in one embodiment of the present invention, an annular groove 321 is formed on the surface of the pin 32. The cross-section of the annular groove 321 may be V-shaped, and the annular groove 321 is distributed along the circumference of the pin 32. When the pin 32 slides until the annular groove 321 is opposite the first screw hole 312, the head end of the pin 32 protrudes out of the accommodating cavity 311 to the maximum extent, and the safety screw 33 is embedded in the annular groove 321 to lock the pin 32. The annular groove 321 can prevent the safety screw 33 from slipping on the surface of the pin 32, thereby improving the stability of the pin 32 locked by the safety screw 33.

[0050] Combine Figure 2 、 Figure 5 As shown, in one embodiment of the present invention, the latch assembly 30 further includes a clamping piece 36 and a screw 37. Accordingly, the tail portion of the fixing seat 31 has a second screw hole 315, which extends from the outer side surface of the fixing seat 31 to the inner side surface. The clamping piece 36 is riveted to the tail end of the screw 37, which is threaded into the second screw hole 315. The fixing seat 31 is clamped and fixed to the C-shaped groove on the side of the window sash via the clamping piece 36. That is, when installing the latch assembly 30 on the side of the window sash, the clamping piece 36 can be first inserted into the C-shaped groove on the side of the window sash. After the fixing seat 31 is moved to a predetermined position, the screw 37 can be turned to move the clamping piece 36 toward the fixing seat 31, thereby securing the fixing seat 31 to the window sash. This structure allows the latch assembly 30 to be fixed without drilling holes in the window sash profile, simplifying the assembly process.

[0051] Specifically, the inner side of the fixing base 31 further includes a second slider portion 316. When the fixing base 31 is mounted on the side of the window sash, the second slider portion 316 engages with the C-shaped groove on the side of the window sash. The second slider portion 316 guides the sliding of the fixing base 31 on the side of the window sash and prevents the fixing base 31 from rotating around the screw 37 (for example, when the screw 37 is turned), thereby improving the stability of the fixing base 31.

[0052] In addition, if Figure 6 As shown, in order to facilitate the insertion of the pin 32 into the sleeve 20, the head end of the pin 32 includes a plug-in section 323 for plugging into the sleeve 20, and the cross-sectional size of the plug-in section 323 gradually decreases from the root to the free end, that is, the plug-in section 323 is truncated cone-shaped, and the cross-sectional size of the free end of the plug-in section 323 is smaller than the cross-sectional size of the sleeve 20.

[0053] In one embodiment of the present invention, the sleeve 20 includes a tubular portion 21 and a fixing portion 22 located at the rear end of the tubular portion 21. The sleeve 20 is fixed to the support arm 11 of the hinge 10 via the fixing portion 22, and the tubular portion 21 protrudes from the surface of the support arm 11 of the hinge 10. This structure facilitates the engagement of the sleeve 20 with the latch assembly 30.

[0054] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A quick-release safety hinge, characterized in that: The lock member is a pair of locks, each of which is connected to the lock member by a threaded connection, and the lock member is connected to the hinge arm by a threaded connection. The lock member is a pair of locks, each of which is connected to the hinge arm by a threaded connection.

2. The quick-release safety hinge according to claim 1, characterized in that: The outer side surface of the fixing seat has a slide groove arranged along the length direction of the accommodating cavity, and the slide groove passes through the surface of the outer side surface of the fixing seat to the accommodating cavity; The latch assembly includes a shift block, which includes a push plate and a first sliding portion connected to the lower surface of the push plate. The shift block is installed on the fixed seat in such a manner that the push plate is located on the outer surface of the fixed seat and the first sliding portion is fixed to the pin shaft after passing through the slide groove. The head end of the pin shaft is retracted into the accommodating cavity by pushing the shift block to slide along the slide groove.

3. The quick-release safety hinge according to claim 2, characterized in that: The pin shaft is cylindrical in shape as a whole, and an outer wall of the tail portion of the pin shaft has a clamping groove. The first sliding block portion of the shifting block passes through the sliding groove and is clamped in the clamping groove of the pin shaft.

4. The quick-release safety hinge according to claim 1, characterized in that: There is an annular groove on the surface of the pin shaft, and the annular groove is distributed along the circumference of the pin shaft. When the annular groove is opposite to the first screw hole, the head end of the pin shaft protrudes out of the accommodating cavity, and the safety top screw locks and fixes the pin shaft by being embedded in the annular groove.

5. The quick-release safety hinge according to claim 1, characterized in that: The latch assembly includes an elastic member, which is installed in the accommodating cavity and pushes the pin shaft so that the head end of the pin shaft extends out of the opening of the accommodating cavity.

6. The quick-release safety hinge according to claim 1, characterized in that: The outer side surface of the fixing seat has a boss, and the first screw hole passes through the top of the boss to the accommodating cavity.

7. The quick-release safety hinge according to claim 1, characterized in that: The latch assembly includes a clamping piece and a screw. The tail of the fixing seat has a second screw hole, which passes through the outer side surface of the fixing seat to the inner side surface, and the clamping piece is riveted and fixed to the tail end of the screw threadedly connected to the second screw hole; the fixing seat is clamped and fixed to the C-shaped groove on the side of the window sash by the clamping piece.

8. The quick-release safety hinge according to claim 7, characterized in that: The inner side surface of the fixing seat is provided with a second sliding block portion, and when the fixing seat is mounted on the side portion of the window sash, the second sliding block portion is embedded in the C-shaped groove on the side portion of the window sash.

9. The quick-release safety hinge according to claim 1, characterized in that: The head end of the pin shaft comprises an inserting section for inserting into the sleeve, and the cross-sectional size of the inserting section gradually decreases from the root to the free end.

10. The quick-release safety hinge according to claim 1, characterized in that: The sleeve includes a tubular portion and a fixing portion located at the tail end of the tubular portion. The sleeve is fixed on the hinge support arm through the fixing portion, and the tubular portion protrudes from the surface of the hinge support arm.

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