TWM581624U - Door locking latch device with bendable operating handle - Google Patents

Abstract

A door latching device for operating a handle, comprising an assembly seat fixed in a door and a gear pivoted on the assembly seat, the latch device further comprising an engaging member and engaging with the gear at the same time a latch that is coupled in synchronism with the displacement, the gear being combined with a safety knob located on the outside and also with an operating handle located on the inside, the operating handle being pivotable to an operational position that is convex or advantageous for operation or A flattened position facilitates a collapsed position in which the operating handle is pivoted when the operating handle is in the operative position and the latching lever is displaced to the upper latching or unlatching position.

Description

Locking device for operating a handle that can be bent

The present invention relates to a door latching device for operating a handle, such as a door mounted on a door, which can be displaced to an upper latch position via an inner handle (inside) or a safety knob (outside) to prevent the door from being Opening or shifting to the unlatching position allows the door to be opened.

A commercially available folding door has two relatively pivotable door panels. When the folding door is closed, the two door panels are arranged in parallel in a straight line. When the folding door is opened, the two door panels can be overlapped together, thereby reducing the space occupied by the door opening. Therefore, such a folding door is more suitable for use in a small space (for example, a bathroom). In order to facilitate the operation of the folding door to open or close, one of the two door panels of the folding door is usually provided with a convex fixed handle, and the hand grip of the fixed hand can facilitate the operation of the door to open or close. The operating handle typically requires a distance from the surface of the door so that the person's hand is easily gripped and such fixed handles are typically not folded or folded.

In addition, since the fixed handle protrudes from the surface of the door, if the fixed handle is mounted on the folded side of the two door panels, the two door panels are interfered by the fixed handle when folded, further causing the two door panels to be opened after the door is opened included angle is too large, the angle between the two door panels too large (more than ³⁰⁾ will open the door so that the problem space of the opening is relatively narrow.

In order to solve the problem that the handle is unable to be folded and the handle is caused by the excessively large angle of the two door panels when the folding door is opened, the space opening is relatively narrowed, the present invention provides a door latching device for operating the handle, which is mounted on a door. The first frame has an installation space, comprising: an assembly seat including an inner surface and an outer surface, the assembly base further comprising a pivot portion formed on the inner surface, a gear, pivotally connected to the pivot portion, and the gear A first pivot axis defined by the pivot is pivoted, and an engaging member is movably coupled to the assembly. The engaging member includes a rack that meshes with the gear, and a latch is coupled to the engaging member. The latch head is displaceable to an upper latching position or an unlatched latching position, and a connecting member is pivoted on a side of the outer surface of the assembly base, the connecting member including an assembly end and the assembly end a pivoting end that is pivotally coupled with the gear, the connecting member and the gear being pivoted along a first pivot axis defined by the pivot Pivoting, the pivoting end defines a second pivot axis perpendicular to the first pivot axis, and an operating handle includes a pivoting portion and a grip portion connected to the pivoting portion, the pivot of the operating handle The connecting portion is pivotally connected to the pivoting end of the connecting member, and the operating handle is pivotable relative to the connecting member with the second pivoting axis as an axis close to a folding position of the outer surface of the assembly seat or an operating position away from the outer surface When the operating handle is in the operating position, the rotating grip drive linkage linkage gear is rotated to displace the latch head to the upper latching position or the unlatching position.

The operation handle of the present invention can be pivoted to the folding position. When the operation handle is mounted on the folded side of the door 11, the space occupied by the latch device can be reduced. When the door 11 is opened, the angle between the first and second plates is small. The passage of the mounting door has a sufficiently large opening to provide a person to pass, and the operating handle can be pivoted to the operating position to provide a human hand grip, which is convenient in use.

The door handle latching device for operating the handle further comprises: a safety knob pivotally mounted on the first frame, the safety knob comprising a driving portion coupled to the gear and a groove formed on the outer end surface, rotating The safety knob is pivoted together with the interlocking gear, the connecting member and the operating handle, and the engaging member is displaced together with the latch to the upper latching position or the unlatching position.

The door handle latching device for operating the handle further comprises: two pivoting members, the pivoting end of the connecting member further comprising two pivoting ears symmetrically spaced apart from each other, each of the pivoting ears respectively comprising parallel a threaded hole of the second pivot axis, the operating handle further comprising a pivot hole parallel to the second pivot axis, the two pivoting members respectively screwing with the screw holes of the respective pivot ears and the end and the operating handle The pivoting handle further includes a through hole extending from a surface of the pivoting portion, the ends of the two pivoting members being spaced apart from the positioning hole, a locking member, wherein the connecting member further comprises a perforation extending toward the pivot end but spaced from the pivot end, the lock being received within the perforation and screwed into the safety knob, the through hole being spaced apart from the perforation when the handle is in the operative position When the operating handle is in the collapsed position, the through hole is aligned with the perforation, allowing the tool to lock or disassemble the lock.

The door handle latching device for operating the handle further comprises: an outer trim member fixed on the first frame and interposed between the surface of the first frame and the grip portion of the operating handle, the outer trim A through hole for accommodating the connecting member is disposed, and the two directional members are located inside the through hole in a direction of the first pivot axis.

A door latching device for operating a handle, comprising: an assembly seat, a latch head movably coupled to the assembly seat, the latch head being operatively displaceable to an overhanging position or a retracted one a latching position, a connecting member coupled to the latching head, the connecting member being pivotally linked to the upper latching position or the unlatching position by a first pivot axis defined by the assembly seat, the connecting member comprising a pivotal connection a pivoting end defining a second pivot axis perpendicular to the first pivot axis, an operating handle including a pivoting portion pivotally coupled to the pivoting end and a flattened portion extending from the pivoting portion The grip portion is pivotable according to the second pivot axis to an embossed operating position or a flat folded position.

The handle handle bendable door latching device, the second pivot axis is parallel to the displacement direction of the latch when the latch is in the unlatching position, when the latch is in the upper latch position The second pivot axis and the displacement direction of the latch are perpendicular to each other.

The door handle latching device for operating the handle further comprises: two pivoting members, the pivoting end of the connecting member further comprising two pivoting ears symmetrically spaced apart from each other, each of the pivoting ears respectively comprising parallel a threaded hole of the second pivot axis, the operating handle further comprising a pivot hole parallel to the second pivot axis, the two pivoting members respectively screwing with the screw holes of the respective pivot ears and the end and the operating handle The pivoting arm pivotal connection handle further includes a through hole extending from the surface of the pivoting portion.

The door handle latching device for operating the handle further comprises: an outer trim member fixed on the first frame and interposed between the surface of the first frame and the grip portion of the operating handle, the outer trim A through hole for accommodating the connecting member is disposed, and the two directional members are located inside the through hole in a direction of the first pivot axis.

The two pivoting members of the present invention are located in the through hole of the outer trim along the first pivot axis, so that the two pivoting members are not disengaged from the pivoting arm due to the pivoting of the operating handle between the operating position and the folding position. The screw hole ensures that the operating handle will not disengage after a long time of use.

The operating handle of the present invention can be pivoted to the collapsed position to reduce the space occupied by the latching device, and can be pivoted to the operating position to provide a human hand grip for good convenience in use.

This creation will be more clearly understood in the detailed description of the illustrative embodiments of the present invention.

A latching device 249 of the present invention can be mounted in a door 11 that can be folded after opening, the latching device 249 for providing the function of the door 11 to remain closed when the door 11 is closed, according to Figures 1 and 2 As shown, the door 11 includes a first panel 20 and a second panel 177 that can be assembled into a left-hand folding door. The first plate 20 includes a first end 25 and a second end 27 spaced apart, and the first plate 20 further includes an upper end 22.

Further, as shown in FIG. 3, the door 11 further includes a first frame 173 and a first outer frame 192. The first frame 173 includes a mounting space 173A extending along the length of the first frame 173. The frame 173 further includes an opening 173B extending from the outer side surface to the mounting space 173A, and the first frame 173 is fixed to the first end 25 of the first board 20. The first outer frame 192 is fixed to the second end 27 of the first plate 20, and a roller 193 is fixed to the top end of the first outer frame 192.

The second plate 177 of the folding door 10 includes a first side 179 and a second side 191. A second frame 176 is mounted on the first side 179 of the second plate 177, and a second frame 194 is fixed to the second side 191 of the second plate 177. The two pivots 195 are respectively fixed to the top of the second frame 194. Bottom end. The first and second frames 173, 176 are pivotally coupled to pivotally connect the first and second plates 20, 177.

The door 11 is mounted on a side of a door frame 197 fixed to the wall surface of the passage. The door frame 197 includes an upper rail beam 197A positioned laterally. The upper rail beam 197A has an upper latch hole 198A, and the two pivot shafts 195 are respectively pivoted to the door frame. On one side of the 197, the roller 193 is adapted to be slidably received in the upper rail guide 197A such that the second plate 177 is pivotable with a pivot axis defined by the centerline of the pivot 195, pivoting the second plate 177 At the same time, the first plate 20 is pulled together until the end faces of the first and second plates 20, 177 are aligned with the end faces (closed state), or the first and second plates 20, 177 are overlapped (open state).

Referring to Figures 2 through 5, the latch assembly 249 includes an assembly seat 251 secured to the door 11. The assembly base 251 includes an inner surface 253 and an outer surface 255 that are spaced apart from each other. The assembly base 251 further includes A pivot portion 272 is formed on the inner surface 253. The pivot portion 272 includes a shaft hole 274. The assembly base 251 further includes two projections 257 forming an inner surface 253.

The latch device 249 further includes a gear 294 pivotally coupled to the assembly base 251, wherein the gear 294 includes a first assembly aperture 298 and a second assembly aperture 300 spaced apart from one another, the gear 294 further including a first assembly formed A pivot hole 296 around the outer periphery of the hole 298 (as shown in Fig. 4). The pivot hole 296 of the gear 294 is pivotally connected to the pivot portion 272 of the assembly seat 251, and the first assembly hole 298 faces the shaft hole 274.

The latching device 249 also includes an engagement member 335 movably coupled to the assembly base 251. The engagement member 335 includes a coupling portion 337 and a rack 339 extending from one end of the coupling portion 337. The engagement member 335 is further formed. Two rails 351 on the joint 337 and parallel to the rack 339. The two protrusions 257 of the assembly base 251 are respectively movably received in the two rails 351 of the engaging member 335, and the rack 339 of the engaging member 335 is engaged with the gear 294 (as shown in FIG. 6). The gear 294 pivots to interlock the engagement member 335.

The adapter 335 is coupled to one end of a link 417, and the other end of the link 417 is coupled to a latch 415 that is displaced to an unlatched position (as shown in Figures 1, 7) or a Upper latch position (as shown in Figures 8 and 9).

The latch device 249 is mounted in the mounting space 173A of the first bezel 173, and the head of the lock device 371 is housed inside the opening 173B of the first bezel 173, the latch head 415 facing the upper end 22 of the door 11 and Close to the upper track beam 197A.

The latch device 249 also includes an operating handle 515 and a connector 501 coupled in conjunction with the latch 415. The connector 501 includes an assembled end 503 that is non-circular in cross section and a pivotal connection from the assembled end 503. The end 505, the connector 501 further includes a through hole 507 extending from the assembly end 503 toward the pivot end 505 but spaced apart from the pivot end 505. The through hole 507 is parallel to the pivot portion 272 of the assembly base 251 as shown in the drawing. a first pivot axis defined and having a large diameter section and a small diameter section extending between the large diameter section and the assembly end 503, the pivoting end 505 further comprising two pivotal arms symmetrically spaced apart from each other 506, each pivot 506 includes a threaded bore 510, and the two threaded bores 510 of the pivoted end 505 are aligned in a line and define a second pivot axis that is perpendicular to the first pivot axis.

The assembly end 503 of the connector 501 passes through the first frame 173 and is coupled with the first assembly hole 298 of the gear 294 such that the connector 501 is coupled with the latch 415 through the gear 294, and the assembly of the connector 501 is assembled. The end 503 is located within the axle bore 274 of the assembly seat 251 and the pivot end 505 is located outside of the outer surface 255 of the assembly seat 251. When the connecting member 501 is rotated in the first pivoting axis, the interlocking gear 294 rotates synchronously, and further the gear 294 interlocks the engaging member 335 to push the latching head 415 to the upper latching position (as shown in FIGS. 8-10) or the unlatching position ( As shown in Figures 1 and 6).

The latch device 249 further includes a safety knob 451 coupled to the gear 294. The safety knob 451 includes a pivot portion 453 and a driving portion 455 extending from the end surface of the pivot portion 453 and having a non-circular cross section. The 451 also includes a recess 457 formed on the outer end surface, the safety knob 451 is pivotally mounted on the opening 173B of the first frame 173 and the driving portion 455 is engaged with the second assembly hole 300 of the gear 294, so the safety knob 451 is rotated. The interlocking gear 294 will pivot. The connecting member 501 and the safety knob 451 are passed through the gear 294 through the through hole 507 of the connecting member 501 through the gear 294 and screwed with the safety knob 451, so that the connecting member 501 and the gear 294 are rotatably coupled together with the safety knob 451.

According to the drawings, the latch device 249 further includes an operating handle 515, wherein the operating handle 515 includes a pivoting portion 517 and a grip portion 519 extending from the pivoting portion 517 and having an outer contour that is curved. The pivoting portion 517 includes a through hole 531 extending from the outer peripheral surface and a pivot hole 533 extending between the two symmetrical sides. The pivot hole 533 and the through hole 531 are substantially interlaced. The pivoting portion 517 of the operating handle 515 is received between the two pivoting ears 506 of the pivoting end 505, and the pivoting holes 533 are aligned with the screw holes 510 of the pivoting arms 506, and the two pivoting members 508 are aligned. They are respectively screwed with the screw holes 510 of the pivots 506 and the ends are pivotally connected with the pivot holes 533 of the operating handle 515, so that the two pivoting members 508 support the operating handle 515 to pivot to the second pivot axis. The portion 519 is adjacent to the outer surface 255 of the assembly base 251 to form a flat folded position (as shown in FIGS. 4 and 5) or an operating position in which the grip portion 519 is convex away from the outer surface 255 of the assembly base 251. (As shown in Figures 7 and 8), it should be noted that the two apex members 508 are spaced apart from each other along the direction of the second pivot axis, and the ends of the two apex members 508 are penetrated. The holes 531 are spaced apart to ensure that the through holes 531 are unobstructed. When the operating handle 515 is in the operating position, the through hole 531 is spaced apart from the through hole 507 of the connecting member 501, and the through hole 531 is aligned with the through hole 507 of the connecting member 501 when the operating handle 515 is in the folded position. Further, the lock 509 can be locked or detached from the through hole 531 using a tool.

In addition, the present latch device 249 further includes an outer trim 532 disposed between the outer surface of the first bezel 173 and the grip portion 519 of the operating handle 515, the outer trim 532 including a pass for receiving the connector 501 The hole 534, the two screw holes 510 of the connecting member 501 are located in the through hole 534 along the direction of the first pivot axis (as shown in FIG. 5), so that the two pivoting members 508 are separated and passed through. The inner wall of the aperture 534 is constrained, and further operation of the handle 515 to pivot repeatedly in the collapsed position and the operative position does not cause the pivots 508 to disengage from the respective threaded apertures 510.

For convenience of explanation, it is assumed that the end faces and end faces of the first and second plates 20, 177 are aligned (closed state), the latch head 415 is in the unlatching position, and the latch head 415 is separated from the upper latch hole 198A (as shown in FIG. 1). Thus, the latch 415 is aligned with the upper latch hole 198A but is not fitted, that is, the door 11 is in an openable state, thereby allowing the first and second plates 20, 177 to be operated to be arranged in an overlapping open state (the first One and the second plates 20, 177 are in close proximity to each other or fully open, and the operating handle 515 is in the collapsed position.

Referring to FIG. 11, when the latch head 415 is in the unlatching position, the door 11 is pushed from one side of the safety knob 451 or the operating handle 515 is pivoted to the operating position from the side of the operating handle 515 to pull the door 11 the operating personnel by the oFF state to ON state, when the first and second door plate 11 is operated to 20,177 close to parallel (an angle of about 2 ^{~ 4.),} the access door 11 is thus mounted has a sufficiently large opening In and out.

To make the door 11 unable to be opened when the door 11 is in the closed state, assuming that the operator is located on the side (usually the inner side) of the door 11 having the operating handle 515, the operating handle 515 needs to be pivoted from the second pivot axis. The position (as shown in FIG. 5) is pivoted to the operating position (as shown in FIG. 7), and the grip portion 519 of the operating handle 515 at the operating position protrudes relative to the first frame 173 (as shown in FIG. 7). Further, it is further provided to provide a hand grip of the person and rotate with the first pivot axis as an axis, so that the operation handle 515 rotates the connecting member 501, the gear 294 and the safety knob 451 together, and the gear 294 pushes the connection. The member 335 moves, further the latch 415 is displaced from the unlatching position (as shown in Figure 1) to the upper latch position, when the latch 415 is in the upper latch position (as shown in Figures 8 and 9), the latch 415 is fitted into the upper latch hole 198A (as shown in FIG. 10), such that the first frame 173 is fixed and cannot be moved or rotated, thus 11 can not be opened, and after the operation of the latching head 415 is displaced to the upper latching position, the pivoting operation handle 515 can be pivoted from the operating position to the folding position according to the second pivoting axis, so that the operating handle 515 is attached to the first The outer surface of a frame 173, it should be noted that the second pivot axis defined by the pivot end 505 is substantially parallel to the direction of movement of the latch 415 when the latch head 415 is in the unlatching position (eg, 5th) The figure is shown and is perpendicular to the direction of movement of the latch 415 when the latch 415 is in the upper latch position (as shown in Figure 8).

The operating handle 515 can be used to operate the latch 415 to be displaced to the unlatching position in a state where the latch head 415 is in the upper latching position, and the operating handle 515 is first pivoted from the retracted position to the second pivot axis as an axis. Operating position, further pivoting the operating handle 515 with the first pivot axis as the axis, such that the operating handle 515 interlocking gear 294 pivots back together with the connector 501 until the engaging member 335 is displaced to the latch 415 displacement to disengage Up to the unlatching position of the upper latch hole 198A, when the latch head 415 is in the unlatching position, the latch head 415 is separated from the upper latch hole 198A, thus allowing the door 11 to be opened, and further pivoting after the latch head 415 is in the unlatching position The operating handle 515 is pivoted from the operating position to the collapsed position.

Assuming that the door 11 is in the closed state and the latch head 415 is in the upper latch position, in the event of an emergency, the operating latch 415 is displaced from the outside of the door 11 to the unlatching position, for example, the person inside the door 11 faints, at the door The person outside 11 can be engaged with the groove 457 of the safety knob 451 by using a coin or the like, and the safety knob 451 can be further rotated, and the safety knob 451 is pivoted together with the interlocking gear 294, the linking member 501, and the operating handle 515. Further, the gear 294 interlocks the displacement of the engaging member 335, and thus the latch head 415 is displaced from the upper latching position to the unlatching position, so that the door 11 can be operated from the outer side to the open state, and it is particularly noted that regardless of the operating handle 515 In the collapsed position or the operating position, the gear 294 and the linkage 501 are both pivotable, so that the gear 294, the connector 501, and the operating handle 515 can be driven using the safety knob 451 even if the operating handle 515 is in the collapsed position. Pivot together Further displacement of the control latch head 415 oriented latched position or unlatched position.

Referring to FIG. 12, it is worth mentioning that the latching device 249 is mounted such that the operating handle 515 is located on the folded side of the door (the operating handle 515 is mounted on the non-folding side as shown in FIGS. 1-10). Because of the thinned and foldable design of the operating handle 515, the first and second plates 20, 177 can be pivoted to a position close to each other when the door 11 is opened, in other words, when the door 11 is opened, The angle between the first and second plates 20, 177 is between 7 ^. ~12 ^. When the door 11 is opened, the passage for installing the door can have a sufficiently large opening for the personnel to enter and exit.

The door handle latching device of the present invention, which can be bent, can be used to operate the latch 415 to be displaced to the upper latching position or the unlatching position by using the locking device 371, so that the door 11 in the form of a folding door has the function of locking or unlocking from the outside. A function of positioning the door 11 in the closed state is provided.

The present operating handle 515 can be pivoted to the collapsed position, when the operating handle 515 is mounted on the unfolded side of the door 11 can reduce the space occupied by the latching device 249, and the operating handle 515 can be pivoted to the operating position to provide It is hand held and has good convenience in use.

The operating handle 515 of the present invention can be pivoted to the folded position, and when the operating handle 515 is mounted on the folded side of the door 11, the space occupied by the latching device 249 can be reduced. When the door 11 is opened, the first and second panels 20 are The angle of the 177 is small, so that the passage of the mounting door has a sufficiently large opening for the person to pass, and the operating handle 515 can be pivoted to the operating position to provide a human hand grip, which is convenient for use.

The two pivoting members 508 of the present invention are located in the through holes 534 of the outer trim 532 along the first pivot axis, so that the two pivoting members 508 are not pivoted between the operating position and the folding position by the operating handle 515. Turning away from the screw hole 510 of the pivot 506, it is ensured that the operating handle 515 does not disengage after a long time of use.

Furthermore, although the present invention has been described as being described as being mounted on a folding door, it should be understood that the present locking device is not limited to use on a folding door, that is, the locking device of the present invention. It can still be applied to general (monolithic) doors or split doors.

The present invention disclosed in the specification is to be considered as illustrative and not restrictive. The scope of the present invention is defined by the scope of the appended claims, and is not intended to be limited by the scope of the invention.

11‧‧‧

20‧‧‧ first board

22‧‧‧Upper

25‧‧‧ first end

27‧‧‧ second end

173‧‧‧First border

173A‧‧‧ installation space

173B‧‧‧ openings

176‧‧‧second border

177‧‧‧ second board

179‧‧‧ first side

191‧‧‧ second side

192‧‧‧ first frame

193‧‧‧Roller

194‧‧‧ second frame

195‧‧‧ pivot

197‧‧‧ door frame

197A‧‧‧Upper track beam

198A‧‧‧Latch hole

249‧‧‧Lock device

251‧‧‧Assembly

253‧‧‧ inner surface

255‧‧‧ outer surface

257‧‧‧Bumps

272‧‧‧Band

274‧‧‧Axis hole

294‧‧‧ Gears

296‧‧‧Pivot

298‧‧‧First assembly hole

300‧‧‧Second assembly hole

335‧‧‧Connecting pieces

337‧‧‧Combination Department

339‧‧‧racks

351‧‧‧ Track

415‧‧‧Latch

417‧‧‧ Connecting rod

451‧‧‧Safety knob

453‧‧‧Band

455‧‧‧ Drive Department

457‧‧‧ Groove

501‧‧‧Connecting parts

503‧‧‧Assembled end

505‧‧‧ pivot end

506‧‧‧ 枢 ear

507‧‧‧Perforation

508‧‧‧ pivoting parts

509‧‧‧Locker

510‧‧‧ screw hole

515‧‧‧Operation handle

517‧‧‧ pivotal department

519‧‧‧ grip

531‧‧‧through holes

532‧‧‧ Exterior parts

533‧‧‧Pivot hole

534‧‧‧through hole

Fig. 1 is a combination view of a latching device for a door that can be bent by a creative operation handle.

Figure 2 is an exploded perspective view of the inventive latch device.

Fig. 3 is another perspective exploded view of the door latching device which can be bent by the creation operation handle.

Figure 4 is a cross-sectional view taken along line 4-4 of Figure 1.

Fig. 5 is a cross-sectional view taken along line 5-5 of Fig. 1.

Fig. 6 is a cross-sectional view taken along line 6-6 of Fig. 4.

Figure 7 is a cross-sectional view of the operating handle pivoted to the operative position with the latch head in the unlatched position.

Figure 8 is a cross-sectional view of the operating handle in an operative position with the latch head in the upper latch position interlocking the latch head to the upper latch position.

Figure 9 illustrates a cross-sectional view of the operating handle in the collapsed position with the latch head in the upper latched position.

Fig. 10 is a front elevational view showing that the operating handle is in the collapsed position with the latch in the upper latched position with the door closed.

Fig. 11 is a cross-sectional view showing the door open state and the operation handle of the latch device being mounted on the unfolded side.

Fig. 12 is a cross-sectional view showing the door open state and the operation handle of the latch device mounted on the folded side.

The drawings are merely for the purpose of explaining the basic teachings, and the description of the number, the position, the relationship, and the size of the components of the embodiments will be explained or the technical skills will be read after reading and understanding the following description. In addition, after reading and understanding the following descriptions, changes in the exact dimensions and size ratios associated with specific forces, weights, strengths, and similar requirements are also industry skills.

In the different figures, the same reference numerals are used to designate the same or similar elements; in addition, please refer to the text such as "top", "bottom", "first", "second", "forward", "backward", "reverse" To "," "front", "back", "height", "twist", "length", "end", "side", "horizontal", "vertical", etc. and similar terms are only for the viewer The constructions in the figures are for reference only to aid in the description of the embodiments.

Claims (8)

A door latching device for operating a handle, which is mounted in a mounting space of a first frame having a door, comprising: an assembly seat including an inner surface and an outer surface, the assembly further comprising the formation a pivoting portion on the inner surface; a gear pivotally connected to the pivoting portion, the gear being pivotable about a first pivot axis defined by the pivot; an engaging member movably coupled to the assembly seat, the engaging member The utility model comprises a rack engaged with the gear; a latch head coupled with the engaging member, the latch head being displaceable to an upper latching position or a retracting latching position; a connecting member pivoted at the assembly On one side of the outer surface of the seat, the connector includes an assembly end and a pivot end spaced from the assembly end, the assembly end being pivotally coupled with the gear, the connector being associated with the gear and defined by the pivot a pivot axis pivoting, the pivot end defining a second pivot axis that is perpendicular to the first pivot axis; an operating handle, a pivoting portion and a grip portion connected to the pivoting portion, the pivoting portion of the operating handle is pivotally connected to the pivoting end of the connecting member, and the operating handle is pivotable relative to the connecting member with the second pivot axis Turning to a retracted position near the outer surface of the assembly or an operating position away from the outer surface, when the operating handle is in the operating position, the rotating grip driving the connecting member interlocking gear rotates to cause the latch to be displaced to the upper latch position or unlatched position. The door latching device for operating the handle according to claim 1, further comprising: a safety knob pivotally mounted on the first frame, the safety knob including a driving portion coupled to the gear and formed on the outer side A groove of the end face, the rotation safety knob is pivoted together with the linkage gear, the connecting member and the operating handle, and the engaging member is displaced together with the latch head to the upper latching position or the unlatching position. The door latching device for operating the handle, as described in claim 1, further comprising: two pivoting members, the pivoting end of the connecting member further comprising two pivoting arms symmetrically spaced apart from each other Each of the pivot ears includes a screw hole parallel to the second pivot axis, and the operating handle further includes a pivot hole parallel to the second pivot axis, and the two pivot members respectively respectively engage with the screw holes of the pivot pins The operating handle and the pivoting end of the operating handle further comprise a through hole extending from a surface of the pivoting portion, the ends of the two pivoting members being spaced apart from the positioning hole; a locking member The connector further includes a perforation extending from the assembly end toward the pivot end but spaced from the pivot end, the lock being received within the perforation and screwed into the safety knob; when the operating handle is in the operating position, The through hole is spaced apart from the perforation; when the operating handle is in the collapsed position, the through hole is aligned with the perforation, allowing the tool to lock or disassemble the lock. The door latching device for operating the handle according to claim 3, further comprising: an outer trim member fixed on the first frame and interposed between the surface of the first frame and the operating handle Between the portions, the outer trim member includes a through hole for receiving the connecting member, and the two pivoting members are located inside the through hole along the direction of the first pivot axis. A door latching device for operating a handle, comprising: an assembly; a latch that is displaceably coupled to the assembly, the latch being operatively displaceable to an overhanging position or a retracted one a latching position; a connecting member coupled to the latching head, the connecting member being pivotally coupled to the upper latching position or the unlatching position by a first pivot axis defined by the assembly seat, the connecting member including a pivoting a pivoting end defining a second pivot axis perpendicular to the first pivot axis; an operating handle including a pivoting portion pivotally coupled to the pivoting end and a flat extending from the pivoting portion The grip portion is pivotable according to the second pivot axis to an embossed operating position or a flat folded position. The door latching device for operating a handle according to claim 5, wherein the second pivot axis is parallel to the displacement direction of the latch when the latch is in the unlatching position, when the latch is When in the upper latch position, the second pivot axis is perpendicular to the direction of displacement of the latch. The door latching device for operating the handle according to claim 5, further comprising: two pivoting members, the pivoting end of the connecting member further comprising two pivoting arms symmetrically spaced apart from each other Each of the pivot ears includes a screw hole parallel to the second pivot axis, and the operating handle further includes a pivot hole parallel to the second pivot axis, and the two pivot members respectively respectively engage with the screw holes of the pivot pins The screwing and the end pivotally communicate with the pivoting hole of the operating handle. The operating handle further includes a through hole extending from a surface of the pivoting portion. The door latching device for operating the handle, as described in claim 7, further comprising: an outer trim member fixed on the first frame and interposed between the surface of the first frame and the operating handle Between the portions, the outer trim member includes a through hole for receiving the connecting member, and the two pivoting members are located inside the through hole in the direction of the first pivot axis.