Sliding and folding handles for door and window locking mechanisms

Abstract

A push-pull folding handle for a door and window locking mechanism relates to a handle. The present invention solves the problem that the foldable rotating handle used in the existing sliding door and window is not suitable for transmitting a large torque, and the friction between the handle and the handle seat affects the service life. The square shaft seat is installed in the middle of the handle seat, the connecting rod support and the square shaft are coaxially installed on the square shaft seat, one end of the connecting rod is hinged to the connecting rod support, and the other end of the connecting rod is hinged to the operating handle. A groove for accommodating the connecting rod is provided on the operating handle. When in the locked and folded state, the operating handle is located in the handle seat, and a pull-out space is left between the upper and lower ends of the operating handle and the handle seat. The connecting rod is located in the groove for accommodating the connecting rod on the operating handle. The handle seat is provided with an outer edge around it, and the outer edge is overlapped on the outer end surface of the door and window profile; when in the translational extension state, the operating handle is translated and extended outside the handle seat, and the operating handle and the connecting rod are arranged vertically. The present invention is used on a sliding door and window locking mechanism.

Description

Technical Field

[0001] The invention relates to a handle, in particular to a push-pull folding handle for a door and window locking mechanism. Background Art

[0002] At present, the foldable rotary handles used in sliding doors and windows are folded and retracted in the door or window sash in a recessed manner in a static state, and can be turned into an extended working state by making a part of the operating handle protrude from the plane of the door or window sash from the static state. The axis of the handle in the working state forms an acute angle with the plane of the door or window sash, and friction is generated between the bottom of the handle and the handle seat; the handle is rotated to drive the locking mechanism through the square shaft of the handle to realize the opening and closing operation of the door or window sash. Due to the folding and retraction of the operating handle, the adjacent door, window sash or similar objects can move parallel to the first door or window sash in a close distance without colliding and interfering with the rotary handle, but the premise is that the rotary handle must first return to the original rotation state and then fold to the recessed retracted state. This type of handle generally has certain limitations on the torque transmission, and is only suitable for situations with fewer locking points such as sliding, folding or double-leaf casement screens, or ceiling and floor latches.

[0003] In summary, doors and windows that use peripheral sealing strips for compression sealing and multi-point locking mechanisms require large transmission torque when opening and closing, which is especially prone to pinching hands when used in sliding doors and windows. The foldable rotating handles used in existing sliding doors and windows are not suitable for transmitting large torques, and the friction between the handle and the handle seat affects the service life. Summary of the invention

[0004] The present invention aims to solve the problem that the foldable rotating handle used in the existing sliding doors and windows is not suitable for transmitting large torque and the friction between the handle and the handle seat affects the service life, and further provides a sliding foldable handle for the door and window locking mechanism.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] The push-pull folding handle for the door and window locking mechanism of the present invention comprises an operating handle 3, a handle seat 2, a connecting rod 6, a connecting rod support 9, a square shaft seat 12 and a square shaft 14. The handle seat 2 is a vertically arranged strip seat, the square shaft seat 12 is installed in the middle of the handle seat 2, the connecting rod support 9 and the square shaft 14 are coaxially installed on the square shaft seat 12, one end of the connecting rod 6 is hinged to the connecting rod support 9, and the other end of the connecting rod 6 is hinged to the operating handle 3. A groove for accommodating the connecting rod 6 is provided on the operating handle 3. The operating handle 3 is in a folded state and flat. There are two states of translation and extension. In the locked and folded state, the operating handle 3 is located in the handle seat 2, and there is a pull-out space between the upper and lower ends of the operating handle 3 and the handle seat 2. The connecting rod 6 is located in a groove on the operating handle 3 for accommodating the connecting rod 6. The handle seat 2 is provided with an outer edge around it, and the outer edge is overlapped on the outer end surface of the door and window profile; in the translational and extended state, the operating handle 3 is translated and extended out of the handle seat 2 and the operating handle 3 is vertically arranged to the connecting rod 6. The rotation of the operating handle 3 can drive the square shaft 14 to rotate synchronously through the connecting rod 6.

[0007] In one embodiment, the operating handle 3 is arranged flush with the outer end surface of the handle base 2, and the outer edge thickness of the handle base 2 is less than 3 mm.

[0008] In one embodiment, in the translationally extended state, the distance between the operating handle 3 and the handle base 2 is 30-60 mm.

[0009] In one embodiment, the push-pull folding handle of the door and window locking mechanism is installed on the sliding door and window leaf.

[0010] In one embodiment, the push-pull folding handle for the door and window locking mechanism also includes a first spring steel ball assembly 5, the other end of the connecting rod 6 is processed with a first blind hole, the first spring steel ball assembly 5 is located in the first blind hole, the spring is in a compressed state, and two first positioning grooves are processed on the operating handle 3. When in the locked and folded state, the first blind hole is arranged corresponding to one of the first positioning grooves, and when in the translated and extended state, the first blind hole is arranged corresponding to the other first positioning groove.

[0011] In one embodiment, the push-pull folding handle for the door and window locking mechanism also includes a second spring steel ball assembly 7, a second blind hole is processed at one end of the connecting rod 6, the second spring steel ball assembly 7 is located in the second blind hole, the spring is in a compressed state, and two second positioning grooves are processed on the connecting rod support 9. In the locked and folded state, the second blind hole is arranged corresponding to one of the second positioning grooves, and in the translated and extended state, the second blind hole is arranged corresponding to the other second positioning groove.

[0012] In one embodiment, the push-pull folding handle for the door and window locking mechanism also includes a handle seat positioning plate 11, and the handle seat positioning plate 11 is evenly processed with four through holes along the circumferential direction. The four through holes are arranged one by one corresponding to the four quadrant points in the circumferential direction. The handle seat positioning plate 11 is located at the center of the handle seat 2 and is mounted on the square shaft seat 12.

[0013] In one embodiment, the push-pull folding handle for the door and window locking mechanism also includes a third spring steel ball assembly 13. A third blind hole is processed on the square shaft seat 12. The third spring steel ball assembly 13 is located in the third blind hole. The spring is in a compressed state. When the operating handle 3 rotates, the third spring steel assembly 13 is positioned and locked with the four through holes on the handle seat positioning plate 11 in sequence.

[0014] In one embodiment, the connecting rod support 9 and the square shaft 14 are coaxially fixed as one body by means of a set screw 15 , a threaded blind hole is machined in the square shaft 14 , and the set screw 15 passes through the connecting rod support 9 and is threadedly connected to the square shaft 14 .

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The push-pull folding handle for the door and window locking mechanism of the present invention adopts a structural design in which the operating handle and the square axis form a 90° angle, which is suitable for transmitting a large torque. In the working state, the operating handle is extended out of the handle seat in translation. Compared with the existing foldable rotating handle which is not suitable for transmitting a large torque, a large operating force can be applied through the operating handle.

[0017] When the present invention is in a translated extended state, the operating handle translates and extends out of the handle seat and the operating handle and the connecting rod are vertically arranged to avoid friction between the operating handle and the handle seat. A sufficient distance is arranged between the operating handle and the handle seat. Compared with the existing operating handle and the end face of the door and window leaf forming an acute angle, the comfort of holding the handle is ensured. When used in sliding doors and windows, the hand will not be pinched, which is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the push-pull folding handle for the door and window locking mechanism of the present invention;

[0019] Figure 2 It is a left side view of the push-pull folding handle for the door and window locking mechanism of the present invention;

[0020] Figure 3 It is a rear view of the push-pull folding handle for the door and window locking mechanism of the present invention;

[0021] Figure 4 It is a top view of the push-pull folding handle for the door and window locking mechanism of the present invention;

[0022] Figure 5 is a longitudinal cross-sectional view of the handle in a locked and folded state in a first specific embodiment of the present invention;

[0023] Figure 6 is a longitudinal sectional view of the handle in a translationally extended state in a first specific embodiment of the present invention;

[0024] Figure 7 is a three-dimensional diagram of a locked and folded state in a first specific embodiment of the present invention;

[0025] Figure 8 It is a three-dimensional diagram of the translationally extended state in the first specific embodiment of the present invention (the operating handle 3 does not rotate);

[0026] Fig. 9 It is a stereoscopic diagram of the translation extension state in the first specific embodiment of the present invention (the operating handle 3 is rotated 90° counterclockwise);

[0027] Fig.10 It is a stereoscopic diagram of the translation extension state in the first specific embodiment of the present invention (the operating handle 3 is rotated 180° counterclockwise);

[0028] Fig.11 It is a stereoscopic view of the opened and folded state in the first specific embodiment of the present invention (the folded state after the operating handle 3 is rotated 180° counterclockwise). DETAILED DESCRIPTION

[0029] Specific implementation method 1: Figures 1 to 11 As shown, the push-pull folding handle for the door and window locking mechanism of this embodiment includes an operating handle 3, a handle seat 2, a connecting rod 6, a connecting rod support 9, a square shaft seat 12 and a square shaft 14. The handle seat 2 is a vertically arranged strip seat, the square shaft seat 12 is installed in the middle of the handle seat 2, the connecting rod support 9 and the square shaft 14 are coaxially installed on the square shaft seat 12, one end of the connecting rod 6 is hinged to the connecting rod support 9, and the other end of the connecting rod 6 is hinged to the operating handle 3. A groove for accommodating the connecting rod 6 is provided on the operating handle 3. The operating handle 3 is in a folded state. The operating handle 3 has two states: a locked and folded state and a translationally extended state. In the locked and folded state, the operating handle 3 is located in the handle seat 2, and a pull-out space is left between the upper and lower ends of the operating handle 3 and the handle seat 2. The connecting rod 6 is located in a groove on the operating handle 3 for accommodating the connecting rod 6. The handle seat 2 is provided with an outer edge around it, and the outer edge overlaps the outer end surface of the door and window profile; in the translationally extended state, the operating handle 3 is translated and extended out of the handle seat 2 and the operating handle 3 is vertically arranged to the connecting rod 6. The rotation of the operating handle 3 can drive the square shaft 14 to rotate synchronously through the connecting rod 6.

[0030] The push-pull folding handle for the door and window locking mechanism of the present invention comprises an operating handle 3 and a handle seat 2 that can be pushed, pulled and folded. In the folded state, the operating handle 3 can be completely retracted into the handle seat 2, and the operating handle 3 is flush with the outer surface of the handle seat 2. The handle seat 2 is embedded in the door and window sash profile. In the folded state, the folding handle as a whole protrudes from the surface of the door and window sash profile by less than 3 mm.

[0031] Operating handle 3 Figure 1 In the folded and locked position, the operator can insert a finger into the gap between the upper end or the lower end of the operating handle 3 and the handle base 2, and pull the operating handle 3 out until the operating handle 3 and the connecting rod 6 are in a vertically extended working state;

[0032] When the push-pull folding handle for the door and window locking mechanism of the present invention is inserted into the groove of the sliding door and window sash profile, the square shaft 14 is engaged with the corresponding driving element of the locking mechanism on the door and window sash, so that the locking mechanism can be driven to realize the opening and closing operation of the door and window sash by rotating the square shaft 14;

[0033] Four mounting holes 16 are processed on the handle base 2;

[0034] The operating handle 3 can rotate around the pin 4 on the connecting rod 6, and the positioning and locking of the folded state is realized through the first spring steel ball assembly 5; the connecting rod 6 can rotate around the pin 8 on the connecting rod support 9, and the positioning and locking of the folded state is realized through the second spring steel ball assembly 7;

[0035] The connecting rod support 9 and the square shaft 14 are inserted into the square shaft seat 12 and locked by the locking screw 15. The connecting rod support 9 and the square shaft seat 12 are slidably connected with the handle seat 2 through the washer 10;

[0036] Specific implementation method 2: Figure 2 , Figure 5 and Figure 7 As shown, in this embodiment, the operating handle 3 is arranged flush with the outer end surface of the handle base 2, and the outer edge thickness of the handle base 2 is less than 3 mm.

[0037] Such a design ensures that the door and window sashes or similar items of the sliding door and window can move in parallel and smoothly pass the adjacent door and window sashes, and the door and window sashes will not collide with the operating handles 3 of the adjacent door and window sashes. Other components and connection relationships are the same as those of the first embodiment.

[0038] Specific implementation method three: Figure 6 , Figure 8 , Fig. 9 and Fig.10 As shown, in the present embodiment, when the operating handle 3 is in the extended state, the distance between the operating handle 3 and the handle base 2 is 30 to 60 mm.

[0039] Such a design ensures the comfort of holding the operating handle, and does not cause hand pinching when used in sliding doors and windows, which is safe and reliable. Other components and connection relationships are the same as those of the first or second specific implementation.

[0040] Specific implementation method four: Figure 7 and Figure 8 As shown, the push-pull folding handle of the door and window locking mechanism described in this embodiment is installed on the sliding door and window leaf.

[0041] With such a design, there will be no pinching of the hands when the sliding doors and windows are used, and the operating handle 3 is suitable for transmitting a larger torque.

[0042] Other components and connection relationships are the same as those of the third specific implementation method.

[0043] Specific implementation method five: Figure 5 and Figure 6 As shown, the push-pull folding handle for the door and window locking mechanism described in this embodiment also includes a first spring steel ball assembly 5, the other end of the connecting rod 6 is processed with a first blind hole, the first spring steel ball assembly 5 is located in the first blind hole, the spring is in a compressed state, and two first positioning grooves are processed on the operating handle 3. When in the locked and folded state, the first blind hole is arranged corresponding to one of the first positioning grooves, and when in the translated and extended state, the first blind hole is arranged corresponding to the other first positioning groove.

[0044] With such a design, the operating handle 3 and the connecting rod 6 are provided with a positioning locking mechanism in the locked folded state and the translated extended state, namely the first spring steel ball assembly 5 and the two first positioning grooves, to ensure that the positions in the locked folded state and the translated extended state are accurate and reliable, and to facilitate the rotation operation of the operating handle 3.

[0045] Other components and connection relationships are the same as those of the first, second or fourth specific implementation modes.

[0046] Specific implementation method six: Figure 5 and Figure 6 As shown, the push-pull folding handle for the door and window locking mechanism described in this embodiment also includes a second spring steel ball assembly 7, a second blind hole is processed at one end of the connecting rod 6, the second spring steel ball assembly 7 is located in the second blind hole, the spring is in a compressed state, and two second positioning grooves are processed on the connecting rod support 9. When in the locked and folded state, the second blind hole is arranged corresponding to one of the second positioning grooves, and when in the translated and extended state, the second blind hole is arranged corresponding to the other second positioning groove.

[0047] With such a design, the connecting rod support 9 and the connecting rod 6 are provided with a positioning locking mechanism in the locked folded state and the translated extended state, namely the second spring steel ball assembly 7 and the two second positioning grooves, to ensure that the positions in the locked folded state and the translated extended state are accurate and reliable, and to facilitate the rotation operation of the operating handle 3.

[0048] Other components and connection relationships are the same as those of the fifth specific implementation method.

[0049] Specific implementation method seven: Figure 5 and Figure 6 As shown, the push-pull folding handle for the door and window locking mechanism described in this embodiment also includes a handle seat positioning plate 11, and the handle seat positioning plate 11 is evenly processed with four through holes along the circumferential direction. The four through holes are arranged one by one corresponding to the four quadrant points in the circumferential direction. The handle seat positioning plate 11 is located at the center of the handle seat 2 and is mounted on the square shaft seat 12.

[0050] With such a design, the square shaft seat 13 and the handle seat positioning pad 11 fixed on the handle seat 2 are positioned and locked at the rotational positions of 0°, 90°, and 180° through the third spring steel ball assembly 13 .

[0051] The other components and connection relationships are the same as those of the specific implementation modes 1, 2, 4 or 6.

[0052] Specific implementation method eight: Figure 5 and Figure 6 As shown, the push-pull folding handle for the door and window locking mechanism described in this embodiment also includes a third spring steel ball assembly 13. A third blind hole is processed on the square shaft seat 12. The third spring steel ball assembly 13 is located in the third blind hole. The spring is in a compressed state. When the operating handle 3 rotates, the third spring steel assembly 13 is positioned and locked with the four through holes on the handle seat positioning plate 11 in sequence.

[0053] With such a design, the square shaft seat 12 is rotationally positioned and locked by the third spring steel ball assembly 13; that is, the square shaft seat 12 and the handle seat positioning pad 11 fixed on the handle seat 2 are positioned and locked at 0°, 90°, and 180° rotation positions by the third spring steel ball assembly 13.

[0054] Other components and connection relationships are the same as those of the seventh specific implementation method.

[0055] Specific implementation method nine: Figure 5 and Figure 6 As shown, in this embodiment, the connecting rod support 9 and the square shaft 14 are coaxially fixed as a whole by a set screw 15, a threaded blind hole is processed in the square shaft 14, and the set screw 15 passes through the connecting rod support 9 and is threadedly connected to the square shaft 14.

[0056] Such a design facilitates the connection between the connecting rod support 9 and the square shaft 14, and can realize that the connecting rod support 9 and the square shaft 14 are coaxially fixedly connected as one.

[0057] The other components and connection relationships are the same as those of the first, second, fourth, sixth or eighth specific implementation modes.

[0058] Working principle:

[0059] The push-pull folding handle for the door and window locking mechanism of the present invention comprises an operating handle 3 that can be folded and extended by pushing and pulling. When the operating handle 3 is parallel to the handle seat 2, the folding and extending operation can be performed; in the folded state, the operating handle 3 can be completely stored in the handle seat 2. In the working state, the operating handle 3 is extended parallel to the handle seat 2. The rotation of the operating handle 3 can drive the square shaft 14 to rotate through the connecting rod 6, thereby driving the locking mechanism to realize the opening and closing operation of the door and window leaf;

[0060] When the push-pull folding handle for the door and window locking mechanism of the present invention is in the folded state, the height of the whole protruding from the surface of the door and window profile is less than 3mm; when in the working state, the operating handle 3 is at right angles to the square axis 14, and the distance between the operating handle 3 and the handle seat 2 is greater than 30mm; the operating handle 3 is positioned and locked by the first spring steel ball assembly 5 and the second spring steel ball assembly 7 in both the folded state and the extended state.

[0061] When the operating handle 3 rotates, the operating handle 3 is positioned and locked by the third spring steel ball assembly 13 at positions of 0°, 90°, and 180° with respect to the vertical downward direction;

[0062] The present invention takes into account the applicability of operation. When the operating handle 3 is parallel to the handle base 2, i.e., when the operating handle 3 is at 0° and 180° with the vertical downward direction, the operating handle 3 can be folded, retracted and extended by pushing and pulling operations.

[0063] When the push-pull folding handle for the door and window locking mechanism of the present invention is inserted into the groove of the sliding door and window sash profile, the square shaft 14 engages with the corresponding driving element of the locking mechanism on the door and window sash, so that the locking mechanism can be driven to realize the opening and closing operations of the door and window sash by rotating the square shaft 14.

Claims

1. A push-pull folding handle for a door and window locking mechanism, the push-pull folding handle for a door and window locking mechanism comprising an operating handle (3), a handle seat (2), a connecting rod (6), a connecting rod support (9), a square shaft seat (12) and a square shaft (14), characterized in that: The handle seat (2) is a vertically arranged strip seat, the square shaft seat (12) is installed in the middle of the handle seat (2), the connecting rod support (9) and the square shaft (14) are coaxially installed on the square shaft seat (12), one end of the connecting rod (6) is hinged to the connecting rod support (9), and the other end of the connecting rod (6) is hinged to the operating handle (3), and a groove for accommodating the connecting rod (6) is provided on the operating handle (3). The operating handle (3) is in two states: a folded state and a translationally extended state. In the locked and folded state, the operating handle (3) is located in the handle seat (2), and the operating handle ( A pull-out space is left between the upper and lower ends of the operating handle (3) and the handle seat (2); the connecting rod (6) is located in a groove on the operating handle (3) for accommodating the connecting rod (6); an outer edge is arranged around the handle seat (2), and the outer edge overlaps the outer end surface of the door and window profile; when in a translationally extended state, the operating handle (3) is translated out of the handle seat (2) and the operating handle (3) and the connecting rod (6) are arranged vertically, and the rotation of the operating handle (3) can drive the square shaft (14) to rotate synchronously through the connecting rod (6); and four mounting holes (16) are processed on the handle seat (2); The push-pull folding handle for a door and window locking mechanism further comprises a first spring steel ball assembly (5), the other end of the connecting rod (6) is processed with a first blind hole, the first spring steel ball assembly (5) is located in the first blind hole, the spring is in a compressed state, and the operating handle (3) is processed with two first positioning grooves, in the locked and folded state, the first blind hole is arranged corresponding to one of the first positioning grooves, and in the translated extended state, the first blind hole is arranged corresponding to the other first positioning groove; The push-pull folding handle for the door and window locking mechanism further comprises a second spring steel ball assembly (7), one end of the connecting rod (6) is processed with a second blind hole, the second spring steel ball assembly (7) is located in the second blind hole, the spring is in a compressed state, and two second positioning grooves are processed on the connecting rod support (9), in the locked and folded state, the second blind hole is arranged corresponding to one of the second positioning grooves, and in the translated extended state, the second blind hole is arranged corresponding to the other second positioning groove.

2. The push-pull folding handle for a door and window locking mechanism according to claim 1, characterized in that: The operating handle (3) is arranged flush with the outer end surface of the handle base (2), and the outer edge thickness of the handle base (2) is less than 3 mm.

3. The push-pull folding handle for a door and window locking mechanism according to claim 1 or 2, characterized in that: When in the extended state, the distance between the operating handle (3) and the handle base (2) is 30 to 60 mm.

4. The push-pull folding handle for a door and window locking mechanism according to claim 3, characterized in that: The push-pull folding handle of the door and window locking mechanism is installed on the sliding door and window leaf.

5. The push-pull folding handle for a door and window locking mechanism according to claim 1, 2 or 4, characterized in that: The push-pull folding handle for a door and window locking mechanism further comprises a handle seat positioning pad (11), on which four through holes are evenly distributed along a circumferential direction, and the four through holes are arranged in a one-to-one correspondence with four quadrant points in the circumferential direction, and the handle seat positioning pad (11) is located at the center of the handle seat (2) and is sleeved on the square shaft seat (12).

6. The push-pull folding handle for a door and window locking mechanism according to claim 5, characterized in that: The push-pull folding handle for a door and window locking mechanism further comprises a third spring steel ball assembly (13). A third blind hole is machined on the square shaft seat (12). The third spring steel ball assembly (13) is located in the third blind hole. The spring is in a compressed state. When the operating handle (3) is rotated, the third spring steel ball assembly (13) is sequentially positioned and locked with the four through holes on the handle seat positioning pad (11).

7. The push-pull folding handle for a door and window locking mechanism according to claim 1, 2, 4 or 6, characterized in that: The connecting rod support (9) and the square shaft (14) are coaxially fixed as one body through a set screw (15); a threaded blind hole is machined in the square shaft (14); the set screw (15) passes through the connecting rod support (9) and is threadedly connected to the square shaft (14).

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