Self-locking door handle structure

Abstract

According to the self-locking type door handle structure, a locking piece is arranged on a door inner handle, when a second handle is in a reset state, a limiting groove is right opposite to a clamping groove, and when a lock cylinder needs to be locked, a sliding block slides in the door inner handle so that a limiting rod connected with the sliding block can be matched with the limiting groove and the clamping groove in a clamped mode, and therefore the lock cylinder can be locked. Due to the fact that the second panel, the clamping groove of the second panel and the door plate are in a relatively fixed state, rotation of the second handle relative to the second panel can be limited, and the self-locking function of the lock cylinder is achieved. Compared with the prior art, the structure and the mode that self-locking is achieved by rotating the back locking knob are adopted, the door lock can be self-locked by sliding the sliding block of the handle inside the door while the door is closed, and the door lock has the effect of being easy and convenient to use and operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of door handle structures, and in particular relates to a self-locking door handle structure. Background Art

[0002] In the prior art, the lock hole and the door handle of the door lock can synchronously control the lock tongue to be inserted or removed from the door frame, thereby realizing the function of closing or opening the door. At the same time, the door lock also has an anti-lock knob, and by turning the anti-lock knob, the door lock can be self-locked, thereby improving safety. However, in actual operation, since the anti-lock knob is not in the position where the palm of the door handle is held, it is inconvenient to operate and easy to be ignored; therefore, people often use the door handle to close the door without further rotating the anti-lock knob for anti-locking or self-locking. However, there is no structure in the prior art that can realize the self-locking of the door lock through the door handle while closing the door, so there is still room for improvement. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a self-locking door handle structure, which can realize self-locking of the door through the door handle while closing the door.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A self-locking door handle structure comprises an outer door handle and an inner door handle which are installed on both sides of a door panel and are opposite to each other, the outer door handle comprises a first panel, a first lock core rotating member and a first handle, the first panel is installed on the door panel, the first lock core rotating member is rotatably installed on the first panel, and the first handle is connected to the first lock core rotating member; the inner door handle comprises a second panel, a second lock core rotating member and a second handle, the second panel is installed on the door panel relative to the first panel, the second lock core rotating member is rotatably installed on the second panel, and the second handle is connected to the second lock core rotating member The first lock core rotating member and the second lock core rotating member are connected to the same synchronization rod, and the synchronization rod is arranged through the door panel; the second panel is provided with a card slot, and the second handle is provided with a limiting slot. When the inner door handle is in a reset state, the limiting slot is opposite to the card slot, and the second handle is provided with a locking member, and the locking member includes a slider and a limiting rod. The slider is slidably connected to the second handle, and the limiting rod is connected to the slider. The sliding direction of the slider slides toward the direction approaching or away from the card slot. When the slider slides toward the card slot, the limiting rod is engaged with the card slot and the limiting slot.

[0006] Furthermore, a recessed groove is provided on the end face of the second handle facing the second lock core rotating member, the limiting groove is provided on the inner bottom face of the recessed groove, the second lock core rotating member is installed in the recessed groove, there is a gap between the locking groove and the recessed groove, the limiting groove extends along the sliding direction of the slider, and the limiting rod is placed in the limiting groove and the recessed groove.

[0007] Furthermore, the second handle is integrally connected to the handle body, the handle body is provided with a strip groove, the slider is in the shape of a strip plate, the slider is slidably matched with the strip groove, the slider is provided with a connecting hole, and one end of the limiting rod is provided with a connecting head, and the connecting head is connected and matched with the connecting hole.

[0008] Furthermore, the handle body is provided with a straight groove, an elastic member is arranged in the straight groove, and a protrusion is arranged at the end of the straight groove for the elastic member to carry the force, and the protrusion extends out of the straight groove when the elastic member is reset; the end surface of the slider facing the strip groove is provided with two holes, and the two holes are distributed along the sliding direction of the slider and correspond to the straight groove; when the limit rod is moved into the limit groove and the card slot through the slider, one of the holes is opposite to the straight groove, and the protrusion extends into the hole under the elastic action of the elastic member; when the limit rod is moved out of the limit groove and the card slot through the slider, the other hole is opposite to the straight groove, and the protrusion extends into the hole under the elastic action of the elastic member.

[0009] Furthermore, a travel groove is provided on the inner bottom surface of the strip groove, and the travel groove extends along the sliding direction of the slider. The slider has a shift block protruding on the end surface of the inner bottom surface of the strip groove, and the shift block is slidably connected to the travel groove. When the shift block is moved to the end of the travel groove, the limit rod extends into or moves out of the limit groove and the clamping groove.

[0010] Furthermore, the inner bottom surface of the strip groove is connected to a cover plate via a connecting piece, a gap groove for movement of the slider is formed between the cover plate and the inner bottom surface of the strip groove, and the cover plate covers the inner bottom surface of the strip groove.

[0011] Furthermore, a surface cover is provided on the surface of the handle body away from the second panel, and the surface cover covers the notch of the strip groove.

[0012] Furthermore, the second panel is provided with a rotating hole, and the end surface of the second panel facing the second handle is provided with a convex ring protruding from the edge of the hole of the rotating hole, the slot is provided on the convex ring, and the slot is connected to the end surface of the convex ring away from the second handle; the second lock core rotating member has a rotating shaft, and the rotating shaft is rotatably matched with the rotating hole.

[0013] The utility model has the following beneficial effects:

[0014] The utility model sets a locking piece on the door handle. When the second handle is in the reset state, the limit groove and the card slot are opposite. When the lock core needs to be locked, the slider is slid on the door handle to make the limit rod connected to the slider fit with the limit groove and the card slot. Since the second panel and its card slot are in a relatively fixed state with the door panel, the second handle can be restricted from rotating with respect to the second panel, thereby realizing the self-locking function of the lock core. Compared with the prior art, which realizes the self-locking structure and method by rotating the anti-locking knob, the utility model can realize the self-locking of the door lock by sliding the slider of the door handle while closing the door, and has the effect of easy use and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a sectional view of the overall structure of the utility model.

[0017] Figure 3 It is a sectional exploded view of the overall structure of the utility model.

[0018] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0019] In the figure:

[0020] 1. Door handle; 11. First panel; 12. First lock core rotating member; 13. First handle; 14. Synchronous rod;

[0021] 2. Door handle;

[0022] 21. first panel; 211. rotating hole; 212. convex ring; 213. card slot;

[0023] 22. Second lock core rotating member; 221. Rotating shaft;

[0024] 23. Second handle; 231. Handle body; 232. Strip groove; 233. Limit groove; 234. Travel groove; 235. Straight groove; 236. Clearance groove; 237. Sink groove;

[0025] 24. elastic member; 241. projection;

[0026] 25, slider; 251, connection hole; 252, jack; 253, dial block;

[0027] 26. Limit rod; 261. Connector;

[0028] 27. Cover plate;

[0029] 28. Face cover. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. The terms such as "upper", "inner", "middle", "left", "right" and "one" used in this specification are only used to facilitate the description and are not used to limit the scope of the present invention. The changes or adjustments in their relative relationships shall also be regarded as the scope of the present invention without substantially changing the technical content.

[0031] A self-locking door handle structure, such as Figures 1 to 4 As shown, it includes an outer door handle 1 and an inner door handle 2 installed on both sides of the door panel and facing each other, and a lock core (not shown) is arranged between the inner door handle 2 and the outer door handle 1. When the inner door handle 2 or the outer door handle 1 is turned, the lock core can be turned synchronously to make the lock tongue extend into or move out of the door frame. The structures of the inner door handle 2 and the outer door handle 1 are further introduced below:

[0032] The outside door handle 1 includes a first panel 2111, a first lock core rotating member 12 and a first handle 13. The first panel 2111 is installed on the door panel, the first lock core rotating member 12 is rotatably installed on the first panel 2111, and the first handle 13 is connected to the first lock core rotating member 12; the inside door handle 2 includes a second panel, a second lock core rotating member 22 and a second handle 23. The second panel is installed on the door panel relative to the first panel 2111, the second lock core rotating member 22 is rotatably installed on the second panel, and the second handle 23 is connected to the second lock core rotating member 22. The first lock core rotating member 12 and the second lock core rotating member 22 are connected to the same synchronization rod 14, and the synchronization rod 14 is arranged to pass through the door panel. Therefore, by setting the synchronization rod 14, the function of synchronous rotation of the first handle 13 and the second handle 23 can be realized.

[0033] Among them, the second panel is provided with a card slot 213, and the second handle 23 is provided with a limiting slot 233. When the inner door handle 2 is in a reset state, the limiting slot 233 is opposite to the card slot 213. The second handle 23 is provided with a locking member, and the locking member includes a slider 25 and a limiting rod 26. The slider 25 is slidably connected to the second handle 23, and the limiting rod 26 is connected to the slider 25. The sliding direction of the slider 25 slides toward or away from the card slot 213. When the slider 25 slides toward the card slot 213, the limiting rod 26 is engaged with the card slot 213 and the limiting slot 233. Since the second panel and the door panel are in a relatively fixed state, when the limiting rod 26 is engaged with the card slot 213 and the limiting slot 233, the rotation of the second handle 23 can be limited, thereby realizing the function of locking the inner door handle 2 and the outer door handle 1.

[0034] like Figures 1 to 4As shown, in this embodiment, in order to facilitate the movement of the limiting rod 26 in the second handle 23 and reduce motion interference, the second handle 23 is integrally connected with a handle body 231, so that the second handle 23 and the handle body 231 are L-shaped, and the handle body 231 of the second handle 23 is provided with a sink groove 237 on the end surface facing the second lock core rotating member 22, and the limiting groove 233 is provided on the inner bottom surface of the sink groove 237. The second lock core rotating member 22 is installed in the sink groove 237, and there is a gap between the card slot 213 and the inner wall of the sink groove 237. The limiting groove 233 extends along the sliding direction of the slider 25, and the limiting rod 26 is placed in the limiting groove 233 and the sink groove 237. Therefore, by accommodating the second lock core rotating member 22 in the recessed groove 237, when the limit rod 26 is locked, the end of the limit rod 26 is located in the gap position between the slot 213 and the inner wall of the slot 237. When locking is required, the sliding slider 25 is used to make the end of the limit rod 26 be located in the slot 213 for engagement, so as to limit the rotation of the second handle 23 about the second panel, thereby realizing the self-locking function.

[0035] In this embodiment, a strip groove 232 is provided on the end surface of the handle body 231 away from the second lock core rotating member 22, and the strip groove 232 extends along the sliding direction of the slider 25, and the strip groove 232 is connected with the limiting groove 233. The slider 25 is in the shape of a strip plate, and the slider 25 slides with the strip groove 232. The slider 25 has a connecting hole 251, and the connecting hole 251 is directly opposite to the limiting groove 233. One end of the limiting rod 26 is provided with a connector 261, and the connector 261 is connected and matched with the connecting hole 251, and the matching method can be a threaded connection, an interference fit, etc. In this way, the sliding stability of the slider 25 in the strip groove 232 can be improved, and the installation and operation of the limiting rod 26 can be simple.

[0036] In this embodiment, in order to effectively lock the limit rod 26 when it moves to the locked position or the unlocked position, thereby improving the movement stability and reducing the interference when locking or unlocking. A straight groove 235 is provided on the inner bottom surface of the bar groove 232 of the handle body 231, and an elastic member 24 is provided in the straight groove 235. The elastic member 24 can be a spring or a metal spring sheet. A protrusion 241 is provided at the end of the straight groove 235 of the elastic member 24. The protrusion 241 is spherical and extends out of the straight groove 235 when the elastic member 24 is reset. The end surface of the slider 25 facing the bar groove 232 is provided with two plug holes 252. The two plug holes 252 are distributed along the sliding direction of the slider 25 and correspond to the straight groove 235. Therefore, when the limit rod 26 moves into the limit groove 233 and the card slot 213 through the slider 25, one of the insertion holes 252 is opposite to the straight groove 235, and the protrusion 241 extends into the insertion hole 252 under the elastic action of the elastic member 24; when the limit rod 26 moves out of the limit groove 233 and the card slot 213 through the slider 25, the other insertion hole 252 is opposite to the straight groove 235, and the protrusion 241 extends into the insertion hole 252 under the elastic action of the elastic member 24.

[0037] Based on this, in order to further limit the movement stroke of the slider 25 and the limit rod 26, so as to improve the movement stability. The inner bottom surface of the strip groove 232 is provided with a travel groove 234, and the travel groove 234 extends along the sliding direction of the slider 25. The extension length of the travel groove 234 is the same as the spacing between the two jacks 252. The slider 25 has a block 253 protruding from the end surface of the inner bottom surface of the strip groove 232. The block 253 is slidably connected with the travel groove 234. When the block 253 is moved to the end of the travel groove 234, the limit rod 26 extends into or moves out of the limit groove 233 and the card slot 213. Therefore, by setting the block 253 protruding from the surface of the handle body 231, when the second handle 23 of Zhundong is in use, the block 253 can be moved to realize self-locking or unlocking, which has the advantage of easy operation.

[0038] like Figures 1 to 4 As shown, in this embodiment, in order to improve the movement stability of the slider 25 and reduce the dust from entering the corresponding gap and affecting the normal operation of the slider 25 and the lock core, the inner bottom surface of the strip groove 232 is connected with a cover plate 27 through a connecting member (the connecting member can be a screw, bolt or screw), and a gap groove 236 for the slider 25 to move is formed between the cover plate 27 and the inner bottom surface of the strip groove 232, and the cover plate 27 covers the inner bottom surface of the strip groove 232.

[0039] In this embodiment, in order to make the handle body 231 beautiful and reduce external dust from entering the strip groove 232 , a surface cover 28 is provided on the surface of the handle body 231 away from the second panel, and the surface cover 28 covers the notch of the strip groove 232 .

[0040] In this embodiment, in order to realize the function of the second lock core rotating member 22 being rotatably connected with the second panel, the second panel is provided with a rotating hole 211, and the end surface of the second panel facing the second handle 23 is located at the edge of the hole of the rotating hole 211 and has a protruding ring 212, and a slot 213 is provided on the protruding ring 212, and the slot 213 is connected with the end surface of the protruding ring 212 away from the second handle 23; the second lock core rotating member 22 has a rotating shaft 221, and the rotating shaft 221 is rotatably matched with the rotating hole 211.

[0041] In summary, the present invention sets a locking member on the inner door handle 2. When the second handle 23 is in the reset state, the limit groove 233 is opposite to the card slot 213. When the lock core needs to be locked, the slider 25 is slid on the inner door handle 2 so that the limit rod 26 connected to the slider 25 is engaged with the limit groove 233 and the card slot 213. Since the second panel and its card slot 213 are in a relatively fixed state with the door panel, the second handle 23 can be restricted from rotating with respect to the second panel, thereby realizing the self-locking function of the lock core. Compared with the prior art, which realizes the self-locking structure and method by rotating the anti-locking knob, the present invention can realize the self-locking of the door lock by sliding the slider 25 of the inner door handle 2 while closing the door, and has the effect of being easy to use and operate.

[0042] The implementation methods of the utility model are not limited to this. According to the above content of the utility model, by using common technical knowledge and customary means in the field, without departing from the above basic technical ideas of the utility model, the utility model can also make other various forms of modification, replacement or combination, all of which fall within the scope of protection of the utility model.

Claims

1. A self-locking door handle structure, comprising an outer door handle and an inner door handle mounted on opposite sides of a door panel, characterized in that: The outer door handle comprises a first panel, a first lock core rotating member and a first handle, wherein the first panel is mounted on the door panel, the first lock core rotating member is rotatably mounted on the first panel, and the first handle is connected to the first lock core rotating member; the inner door handle comprises a second panel, a second lock core rotating member and a second handle, wherein the second panel is mounted on the door panel relative to the first panel, the second lock core rotating member is rotatably mounted on the second panel, the second handle is connected to the second lock core rotating member, the first lock core rotating member and the second lock core rotating member are connected to the same synchronization rod, and the synchronization rod is arranged through the door panel; the second panel is provided with a card slot, and the second handle is provided with a limiting slot, when the inner door handle is in a reset state, the limiting slot is directly opposite to the card slot, the second handle is provided with a locking member, and the locking member comprises a slider and a limiting rod, the slider is slidably connected to the second handle, the limiting rod is connected to the slider, the sliding direction of the slider slides toward the direction close to or away from the card slot, and when the slider slides toward the card slot, the limiting rod is engaged with the card slot and the limiting slot.

2. The self-locking door handle structure according to claim 1, characterized in that: The second handle is provided with a recessed groove on the end face of the second lock core rotating member, the limiting groove is provided on the inner bottom face of the recessed groove, the second lock core rotating member is installed in the recessed groove, there is a gap between the locking groove and the recessed groove, the limiting groove extends along the sliding direction of the slider, and the limiting rod is placed in the limiting groove and the recessed groove.

3. The self-locking door handle structure according to claim 2, characterized in that: The second handle is integrally connected to the handle body, the handle body is provided with a strip groove, the slider is in the shape of a strip plate, the slider is slidably matched with the strip groove, the slider is provided with a connecting hole, and one end of the limit rod is provided with a connecting head, and the connecting head is connected and matched with the connecting hole.

4. The self-locking door handle structure according to claim 3, characterized in that: The handle body is provided with a straight groove, an elastic member is arranged in the straight groove, a protrusion is arranged at the end of the straight groove of the elastic member, and the protrusion extends out of the straight groove when the elastic member is reset; the end surface of the slider facing the strip groove is provided with two insertion holes, the two insertion holes are distributed along the sliding direction of the slider and correspond to the straight groove; when the limiting rod moves into the limiting groove and the card slot through the slider, one of the insertion holes is opposite to the straight groove, and the protrusion extends into the insertion hole under the elastic action of the elastic member; When the limiting rod moves out of the limiting groove and the clamping groove through the sliding block, the other insertion hole is directly opposite to the straight groove, and the protrusion extends into the insertion hole under the elastic action of the elastic member.

5. The self-locking door handle structure according to claim 3, characterized in that: A travel groove is provided on the inner bottom surface of the strip groove, and the travel groove extends along the sliding direction of the slider. A shift block is protruded from the end surface of the slider toward the inner bottom surface of the strip groove, and the shift block is slidably connected to the travel groove. When the shift block is moved to the end of the travel groove, the limit rod extends into or moves out of the limit groove and the clamping groove.

6. The self-locking door handle structure according to claim 3, characterized in that: The inner bottom surface of the strip groove is connected with a cover plate through a connecting piece, a gap groove for the movement of the slider is formed between the cover plate and the inner bottom surface of the strip groove, and the cover plate covers the inner bottom surface of the strip groove.

7. The self-locking door handle structure according to claim 3, characterized in that: A surface cover is disposed on a surface of the handle body away from the second panel, and the surface cover covers the notch of the strip groove.

8. The self-locking door handle structure according to claim 1, characterized in that: The second panel is provided with a rotating hole, and the end surface of the second panel facing the second handle is provided with a convex ring protruding from the edge of the hole of the rotating hole, the clamping groove is provided on the convex ring, and the clamping groove is connected with the end surface of the convex ring away from the second handle; the second lock core rotating member has a rotating shaft, and the rotating shaft is rotatably matched with the rotating hole.

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