Multifunctional handle

Abstract

The utility model relates to a multifunctional handle which comprises a handle body and a fixing seat, the handle body is rotatably arranged on the front side of the fixing seat, a gear is rotatably arranged on the rear side of the fixing seat, the gear is fixedly connected with the handle body, a transmission hole used for being connected with a transmission shaft in an inserted mode is formed in the rear end of the gear, and first connecting holes are formed in the two ends of the fixing seat. A shifting fork sliding cavity is further formed in the rear side of the fixing base and corresponds to the position between the first connecting holes in the two ends, the gear is located in the shifting fork sliding cavity, at least one side of the gear is separated from the side wall of the shifting fork sliding cavity, and second connecting holes are further formed in the two ends in the shifting fork sliding cavity. The gear in transmission with the handle body is arranged in the fixing seat connected with the handle, and the transmission hole is formed in the gear and can be matched with a transmission shaft of a lock body in an inserted mode. In addition, the fixing seat is further provided with a shifting fork sliding cavity, so that the shifting fork can be arranged in the sliding cavity in a sliding mode and is meshed with the gear, the shifting fork is controlled to move through the handle, transmission with a lock rod (such as a two-point lock) can be achieved, and sliding of the lock rod on the door and window is controlled.

Description

Technical Field

[0001] This utility model relates to the technical field of handles for doors and windows, and in particular to a multifunctional handle. Background Technology

[0002] Currently, door and window handles function independently, generally only interacting with the lock rod or the lock body. Taking the lock rod as an example: the lock rod slides along the edge of the window sash or frame, and has locking points. Rotating the handle moves the lock rod, changing the position of the locking points and enabling locking, unlocking, or other functions of the door and window system. Taking the lock body as an example: the lock body contains a mechanism that controls the extension and retraction of the bolt (slanted bolt). This mechanism has a power input end connected to a square shaft (drive shaft), which in turn connects to the handle. Rotating the handle controls the rotation of the power input end, thus controlling the bolt's retraction and unlocking.

[0003] Chinese Patent CN 217812818 U, published on November 15, 2022, discloses a novel handle limiting structure, including a handle and a base. A frustum is provided at the connecting end of the handle, with evenly distributed circular pits around its perimeter, each containing a spring. A mounting hole is provided in the center of the base, with corresponding recesses on the inner sidewall of the mounting hole. A second washer and a steel ball are placed within the recesses. A gear is inserted into the mounting hole, with its square head passing through the base and the second washer and locking into a square hole on the handle. A bottom cover is installed at the bottom of the base, with a sliding groove on the bottom cover. A rack is slidably mounted in the groove, with the rack meshing with the gear at the bottom of the gear. A transmission block at the bottom of the rack extends from the groove. This handle structure can only be used with a locking rod, limiting its functionality. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-functional handle with a reasonable structure that can be used with door and window lock rods or with the drive shaft of doors and windows with lock bodies.

[0005] The purpose of this utility model is achieved as follows:

[0006] A multifunctional handle includes a handle body and a fixed base. The handle body is rotatably disposed on the front side of the fixed base, and a gear is rotatably disposed on the rear side of the fixed base. The gear is fixedly connected to the handle body. The handle body is characterized in that: the rear end of the gear is provided with a transmission hole for insertion into a transmission shaft; the fixed base is provided with first connecting holes at both ends; a shift fork slide cavity is provided on the rear side of the fixed base between the first connecting holes at both ends; the gear is located in the shift fork slide cavity and is separated from the side wall of the shift fork slide cavity on at least one side; and a second connecting hole is provided at both ends of the shift fork slide cavity.

[0007] The objective of this utility model can also be achieved by the following technical measures:

[0008] As a more specific embodiment, the gear has a connecting shaft at its front end, and the fixed seat has a shaft hole that passes through its front and rear sides corresponding to the connecting shaft. The connecting shaft is rotatably engaged with the shaft hole, and the front end of the connecting shaft extends out of the shaft hole and is inserted into the handle body. The connecting shaft and the handle body are fixedly connected by a connector.

[0009] As a further embodiment, a shift fork is also included, one end of which is provided with a rack, which is disposed between the shift fork slide cavity and the gear and meshes with the gear, and the other end of the shift fork extends out of the fixed seat; a sliding plate is also provided on one side of the rack and the shift fork, and the sliding plate slides in cooperation with the shift fork slide cavity.

[0010] As a further embodiment, the fork slide cavity is further provided with a limiting block for limiting the sliding stroke of the slide plate. The limiting block is located at the end of the fork slide cavity. The limiting block is a rubber block with a positioning protrusion on its front side. The fork slide cavity has a positioning concave surface that engages with the positioning protrusion. The positioning concave surface is the second connecting hole and / or the hollowed-out position at the bottom of the fork slide cavity. The handle of this utility model is particularly suitable for use with sliding doors. Its size is relatively large, which results in the lock body of such doors being generally large as well. The center distance between the two through holes on the lock body that avoid the handle connection is also relatively large. Therefore, the center distance between the second connecting holes on the handle fixing seat corresponding to the through holes is also relatively large. In order to avoid the second connecting holes, the length of the fork slide cavity is also increased. However, since the fork does not need to utilize the full length of the slide cavity when the gear and the fork are engaged, and the slide cavity is too long, it is easy for the fork to overtravel and disengage from the gear. Therefore, in this embodiment, a detachable limiting block is added to limit the sliding stroke of the fork. When the gear is used in conjunction with the drive shaft, the shift fork and the limit block can be removed to connect to the door or window through the second connecting hole and the corresponding connecting parts.

[0011] As a further solution, the rear side of the limiting block has a cavity corresponding to at least a portion of the positioning protrusion. The cavity in the limiting block reduces cost and also lowers its rigidity, giving it better cushioning deformation capabilities and reducing noise during use.

[0012] As a further embodiment, the rear side of the fixing seat is provided with a recessed surface, which extends to both ends of the rear side of the fixing seat, and a gasket is separately provided in the recessed surface.

[0013] As a further embodiment, the front end of the gear is provided with two or four positioning grooves evenly distributed in a ring around the periphery of the connecting shaft. A ball bearing is provided on the fixed base along the rotational trajectory of the positioning grooves, and the ball bearing slides against the positioning grooves. During the engagement of the ball bearing with the positioning grooves, tactile feedback is provided, and a "click, click, click" sound is produced, creating a sensory experience of auditory feedback.

[0014] As a further embodiment, the connecting shaft has an axial through hole, one end of which leads to the front end of the connecting shaft, and the other end of which leads to the transmission hole; the handle body has a screw hole corresponding to the through hole, and the connector is a bolt, which is inserted from the transmission hole, passes through the through hole, and connects to the screw hole of the handle body; or, the connector is a locking screw, which passes through the side of the handle body and locks into the side of the connecting shaft.

[0015] As a further embodiment, the outer end of the connecting shaft is provided with a spline head, and one end of the handle body is provided with a spline groove corresponding to the spline head. The spline head and the spline groove are inserted and connected for transmission.

[0016] As a further embodiment, a sleeve extends from the front side of the fixed base corresponding to the outer periphery of the shaft hole. A bushing is housed within the sleeve, and the front end of the bushing has an outwardly flanged edge. The connecting shaft of the gear passes through the bushing. A cover is also provided between the front end of the fixed base and the handle body. The cover has a sleeve hole that fits around the sleeve and rotates with it. A spring is also provided between the cover and the handle body, fitting around the sleeve. The cover and the fixed base have a concave-convex fit, with a certain distance between them. The center of the cover is arched upwards, and the fixed base has a boss corresponding to the center of the cover. Positioning straight edges are provided on the left, right, top, and bottom sides of the boss. Pulling the cover forward compresses the spring, causing the cover to separate from the concave-convex surface of the fixed base. Then, rotating it 90 degrees releases the pulling force on the cover. The cover, relying on the spring's reaction and the positioning straight edges of the boss, rotates 90 degrees away from the fixed base, exposing both the first and second connecting holes for installation.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) The fixed base connected to the handle of this utility model is provided with a gear that drives the handle body. The gear is provided with a transmission hole, which can be inserted and matched with the transmission shaft of the lock body. In addition, the fixed base is also provided with a fork slide cavity, so that the fork can be slidably set in the slide cavity and mesh with the gear, so as to realize the movement of the fork controlled by the handle, which can be driven with the lock rod (such as a two-point lock) to control the sliding of the lock rod on the door and window.

[0019] (2) The fixed base of this utility model has a long sliding cavity, which meets the requirements of the large stroke sliding of the shift fork, and at the same time has a long space, which can be used to match the large-sized lock body.

[0020] (3) The end of the slide cavity of this utility model is provided with a positioning concave surface. When the shift fork does not need a large stroke, the limiting block can be inserted into the positioning concave surface to shorten the length of the slide cavity, reduce the sliding stroke of the shift fork, and avoid disengaging from the gear. At the same time, the limiting block is a rubber part and has a buffering effect. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of an embodiment of the present invention.

[0022] Figure 2 for Figure 1 (Structure diagram from another angle after removing springs, balls, and drive shafts)

[0023] Figure 3 This is a schematic diagram of the gear angle structure in this utility model.

[0024] Figure 4 This is a schematic diagram of the gear structure at another angle in this utility model.

[0025] Figure 5 This is a schematic diagram of the limiting block structure in this utility model.

[0026] Figure 6 is a schematic diagram of the angle structure of the fixed base in this utility model.

[0027] Figure 7 is a schematic diagram of the fixed base from another angle in this utility model.

[0028] Figure 8 is a schematic diagram of the left and right bisecting cross-sectional structure of this utility model.

[0029] Figure 9 is a schematic diagram of another cross-section (cut along the front and rear of the gear) of this utility model.

[0030] Figure 10 This is a schematic diagram of the structure of the present invention in conjunction with the shift fork.

[0031] Figure 11 for Figure 10 Another angle and a schematic diagram of the structure after the cover is rotated open.

[0032] Figure 12 for Figure 10 Another structural diagram from a different angle.

[0033] Figure 13 This is a structural diagram of the present invention in conjunction with a transmission shaft (square shaft). Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] like Figures 1 to 10 and Figure 12As shown, a multifunctional handle includes a handle body 1 and a fixed base 2. The handle body 1 is rotatably disposed on the front side of the fixed base 2. A gear 4 is rotatably disposed on the rear side of the fixed base 2. The gear 4 is fixedly connected to the handle body 1. The rear end of the gear 4 is provided with a transmission hole 41 for insertion into a transmission shaft 8. The fixed base 2 is provided with first connecting holes 26 at both ends. A shift fork slide cavity 21 is also provided on the rear side of the fixed base 2 between the first connecting holes 26 at both ends. The gear 4 is located in the shift fork slide cavity 21 and is separated from the side wall of the shift fork slide cavity 21 on at least one side. The shift fork slide cavity 21 is also provided with second connecting holes 27 at both ends.

[0036] The transmission hole 41 is a square hole, and the transmission shaft 8 is a square shaft. In this embodiment, a square shaft can be used, or the square shaft is integrated into the door and window lock body.

[0037] The gear 4 has a connecting shaft 42 at its front end. The fixed base 2 has shaft holes 22 that pass through the front and rear sides of the connecting shaft 42. The connecting shaft 42 is rotatably engaged with the shaft holes 22. The front end of the connecting shaft 42 extends out of the shaft holes 22 and is inserted into the handle body 1. The connecting shaft 42 and the handle body 1 are fixedly connected by a connector.

[0038] It also includes a shift fork 5, one end of which is provided with a rack 51. The rack 51 is located between the shift fork slide cavity 21 and the gear 4 and meshes with the gear 4. The other end of the shift fork 5 extends out of the fixed seat 2. A sliding plate 53 is also provided on one side of the rack 51 and the shift fork 5. The sliding plate 53 slides in cooperation with the shift fork slide cavity 21.

[0039] The fork slide cavity 21 is also provided with a limiting block 6 for limiting the sliding stroke of the slide plate 53. The limiting block 6 is located at the end of the fork slide cavity 21. The limiting block 6 is a rubber block with a positioning protrusion 61 on its front side. The fork slide cavity 21 is provided with a positioning concave surface 211 that is inserted and matched with the positioning protrusion 61. The positioning concave surface 211 is the second connecting hole 27 and / or the hollowed-out position at the bottom of the fork slide cavity 21.

[0040] At least a portion of the positioning protrusion 61 on the rear side of the limiting block 6 has a recess 62.

[0041] The fixed base 2 has a recessed surface 210 on its rear side, which extends to both ends of the rear side of the fixed base 2. A pad 7 is provided separately in the recessed surface 210, and the pad 7 has a notch corresponding to the sliding area of ​​the shift fork 5.

[0042] The front end of the gear 4 is provided with four evenly distributed positioning grooves 45 around the periphery of the connecting shaft 42. A ball bearing is provided on the fixed base 2 along the rotational trajectory of the positioning grooves 45, and the ball bearing slides against the positioning grooves 45. Each ball bearing includes a steel ball 24 and a compression spring 23. A blind hole 29 is provided in the cavity of the fixed base 2 corresponding to the ball bearing, and the compression spring 23 and steel ball 24 are sequentially arranged within the blind hole 29. The steel ball 24 is floating, and a portion of it protrudes out of the blind hole 29 to engage with the positioning groove 45 of the gear 4.

[0043] The connecting shaft 42 has an axial through hole 44, one end of which leads to the front end of the connecting shaft 42, and the other end of which leads to the transmission hole 41. The handle body 1 has a screw hole 14 corresponding to the through hole 44. The connecting member is a bolt 9, which is inserted from the transmission hole 41, passes through the through hole 44, and connects to the screw hole 14 of the handle body 1.

[0044] The outer end of the connecting shaft 42 is provided with a spline head 43, and a spline groove 11 is provided in one end of the handle body 1 corresponding to the spline head 43. The spline head 43 and the spline groove 11 are inserted and engaged and connected in a transmission manner.

[0045] A sleeve 28 extends from the front side of the fixed base 2 corresponding to the outer periphery of the front end of the shaft hole 22. A bushing 25 is provided inside the sleeve 28. The front end of the bushing 25 has an outward flange. The connecting shaft 42 of the gear 4 passes through the bushing 25. A cover 3 is also provided between the front end of the fixed base 2 and the handle body 1. The cover 3 has a sleeve hole, which is fitted outside the sleeve 28 and rotates with the sleeve 28. A spring 13 is also provided between the cover 3 and the handle body 1. The spring 13 is fitted outside the sleeve 28. The cover 3 and the fixed base 2 have a concave-convex fit (the rear end face of the cover 3 is concave, and the front end of the fixed base 2 has a convex face 213). The cover 3 and the handle body 1 are separated by a certain distance. The center of the cover 3 is arched upward. The fixed base 2 has a boss 212 corresponding to the center of the cover 3. The boss 212 has positioning straight edges 214 on the left and right sides and the top and bottom sides.

[0046] The handle body 1 is further provided with a groove 12 at the rear end corresponding to the spline groove 11. The inner diameter of the groove 12 is larger than the inner diameter of the keyway 11. A support is formed between the groove 12 and the keyway 11. The support abuts against the outer flange of the bushing 25. The spring 13 can be a structure with steel wire winding or a spring steel washer structure. Its two ends abut against the support and the front end face of the cover 3, respectively.

[0047] Combination Figure 11As shown, when the cover 3 is pulled forward, the spring 13 is compressed, and the cover 3 separates from the concave and convex surfaces that mate with the fixing seat 2. Then, it is rotated 90 degrees and the pulling force on the cover 3 is released. The cover 3 is rotated 90 degrees away from the fixing seat 2 by the reaction force of the spring 13 and the positioning straight edge 214 of the boss 212. The first connecting hole 26 and the second connecting hole 27 are exposed for installation.

[0048] Among them, see Figure 1 When the handle is used with doors and windows equipped with locking rods, the drive shaft 8 is not selected; instead, a washer 7, a shift fork 5, and a limit block 6 are used, and they are installed in the direction of arrow A. After assembly, it should look like... Figure 10 and Figure 12 As shown. When the handle is used with doors and windows that have locks, the aforementioned gasket 7, fork 5, and limit block 6 are removed, and the drive shaft 8 is inserted into the drive hole 41 of the gear 4 in the direction of arrow B. See Figure 12 As shown.

[0049] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A multifunctional handle, comprising a handle body (1) and a fixed base (2), wherein the handle body (1) is rotatably disposed on the front side of the fixed base (2), and a gear (4) is rotatably disposed on the rear side of the fixed base (2), the gear (4) being fixedly connected to the handle body (1), characterized in that: The rear end of the gear (4) is provided with a transmission hole (41) for insertion into the transmission shaft (8). The two ends of the fixed seat (2) are provided with first connecting holes (26). The rear side of the fixed seat (2) is also provided with a shift fork slide cavity (21) between the first connecting holes (26) at both ends. The gear (4) is located in the shift fork slide cavity (21) and at least one side is separated from the side wall of the shift fork slide cavity (21). The two ends of the shift fork slide cavity (21) are also provided with second connecting holes (27).

2. The multifunctional handle according to claim 1, characterized in that: The gear (4) has a connecting shaft (42) at its front end. The fixed seat (2) has a shaft hole (22) that passes through the front and rear sides of the connecting shaft (42). The connecting shaft (42) is rotatably engaged with the shaft hole (22). The front end of the connecting shaft (42) extends out of the shaft hole (22) and is inserted into the handle body (1). The connecting shaft (42) and the handle body (1) are fixedly connected by a connector.

3. The multifunctional handle according to claim 1, characterized in that: It also includes a shift fork (5), one end of which is provided with a rack (51), the rack (51) is located between the shift fork slide cavity (21) and the gear (4) and meshes with the gear (4), and the other end of the shift fork (5) extends out of the fixed seat (2); a sliding plate (53) is also provided on one side of the rack (51) and the shift fork (5), and the sliding plate (53) slides with the shift fork slide cavity (21).

4. The multifunctional handle according to claim 3, characterized in that: The fork slide cavity (21) is also provided with a limiting block (6) for limiting the sliding stroke of the slide plate (53). The limiting block (6) is located at the end of the fork slide cavity (21). The limiting block (6) is a rubber block with a positioning protrusion (61) on its front side. The fork slide cavity (21) is provided with a positioning concave surface (211) that is inserted and matched with the positioning protrusion (61). The positioning concave surface (211) is the second connecting hole (27) and / or the hollowed-out position at the bottom of the fork slide cavity (21).

5. The multifunctional handle according to claim 4, characterized in that: The rear side of the limiting block (6) has at least a cavity (62) corresponding to the positioning protrusion (61).

6. The multifunctional handle according to claim 1, characterized in that: The rear side of the fixed seat (2) is provided with a recessed surface (210), which extends to both ends of the rear side of the fixed seat (2). A gasket (7) is provided separately inside the recessed surface (210).

7. The multifunctional handle according to claim 2, characterized in that: The front end of the gear (4) is provided with two or four positioning grooves (45) evenly distributed in a ring around the outer periphery of the connecting shaft (42). The fixed seat (2) is provided with a ball corresponding to the rotation trajectory of the positioning groove (45), and the ball slides against the positioning groove (45).

8. The multifunctional handle according to claim 2, characterized in that: The connecting shaft (42) is provided with an axial through hole (44), one end of which leads to the front end of the connecting shaft (42), and the other end of which leads to the transmission hole (41); the handle body (1) is provided with a screw hole (14) corresponding to the through hole (44), and the connecting member is a bolt (9). The bolt (9) is inserted from the transmission hole (41), passes through the through hole (44), and connects to the screw hole (14) of the handle body (1); or, the connecting member is a locking screw, which passes through the side of the handle body (1) and locks into the side of the connecting shaft (42).

9. The multifunctional handle according to claim 2 or 8, characterized in that: The outer end of the connecting shaft (42) is provided with a spline head (43), and the inner end of the handle body (1) is provided with a spline groove (11) corresponding to the spline head (43). The spline head (43) and the spline groove (11) are inserted and connected for transmission.

10. The multifunctional handle according to claim 2, characterized in that: A sleeve (28) extends from the front side of the fixed base (2) corresponding to the outer periphery of the front end of the shaft hole (22). A bushing (25) is provided inside the sleeve (28). The front end of the bushing (25) is provided with an outward flange. The connecting shaft (42) of the gear (4) passes through the bushing (25). A cover (3) is also provided between the front end of the fixed base (2) and the handle body (1). The cover (3) is provided with a sleeve hole, which is fitted outside the sleeve (28) and rotates with the sleeve (28). In addition, a spring (13) is provided between the cover (3) and the handle body (1), and the spring (13) is sleeved on the outside of the sleeve (28); the cover (3) and the fixing seat (2) are in concave-convex fit, and the cover (3) and the handle body (1) are separated by a certain distance; the center of the cover (3) is arched upward, and the fixing seat (2) is provided with a boss (212) corresponding to the center of the cover (3), and the boss (212) is provided with positioning straight edges (214) on the left and right sides and the top and bottom sides respectively.

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