Door handle lock

Abstract

The utility model belongs to the technical field of locks, and particularly discloses a door handle lock which comprises a fixed seat, a handle, a counter lock push rod and a rotating shaft. The fixed seat is provided with a mounting cavity and a mounting hole, and the back locking push rod comprises a sliding block, a push handle and a sliding bayonet lock; the rotating shaft is provided with a clamping groove, the clamping groove is provided with a clamping section and a rotating section, and the clamping section extends in the length direction of the rotating shaft; the rotating section communicates with the clamping section, and the sliding clamping pin is located in the clamping groove. When the sliding bayonet lock of the back locking push rod of the door handle lock is located on the clamping section of the clamping groove of the rotating shaft, the rotating shaft cannot rotate relative to the sliding bayonet lock, the door handle lock is in a back locking state, a user cannot rotate the handle to unlock the door handle lock, and the back locking purpose is achieved, that is, the back locking structure of the door handle lock is integrated on the fixing base; the door handle lock can be installed by fixing the fixing base on the door body, a back locking piece does not need to be installed in advance, the number of assembly parts is reduced, the installation time is shortened, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a door handle lock. Background Art

[0002] Generally, door locks have an anti-lock function, that is, an anti-lock button is provided at the inner door handle to lock the inner door handle; when the anti-lock button is pressed, the anti-lock bolt inside the handle will insert into the anti-lock hole of the anti-lock plate provided on the door, so that the anti-lock bolt and the anti-lock plate are locked together to achieve the purpose of locking the inner door handle. However, this anti-lock structure requires pre-installing the anti-lock plate on the door, and then aligning and installing the door handle with the anti-lock plate and the outer lock, resulting in a complex installation process for the door lock, a long installation time for the door lock, and affecting the installation efficiency of the door lock. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a door handle lock to solve the technical problems in the prior art that the installation process of the door lock is complex, the installation time of the door lock is long, and the installation efficiency of the door lock is affected.

[0004] To achieve the above purpose, the utility model provides a door handle lock, which includes: a fixed seat, a handle, an anti-lock push rod, and a rotating shaft; an installation cavity is provided inside the fixed seat, the rotating shaft is provided on the handle, the rotating shaft is located inside the installation cavity, and the rotating shaft is rotatably connected to the fixed seat; the fixed seat is provided with an installation hole, and the installation hole communicates with the installation cavity; the installation hole extends along the length direction of the rotating shaft;

[0005] The anti-lock push rod includes a slider, a push handle, and a sliding latch; the slider is slidably connected to the fixed seat, the sliding direction of the slider is parallel to the length direction of the rotating shaft, the push handle and the sliding latch are both provided on the slider, and the push handle extends from the installation hole to the outside of the fixed seat;

[0006] The rotating shaft is provided with a clamping groove, the clamping groove has a clamping section and a rotating section, the clamping section extends along the length direction of the rotating shaft, and the rotating section is perpendicular to the clamping section; the rotating section communicates with the clamping section, and the sliding latch is located inside the clamping groove.

[0007] Preferably, the number of the rotating sections is two, and the two rotating sections are symmetrically arranged on both sides of the clamping section with respect to the clamping section.

[0008] Preferably, the rotating shaft is provided at one end of the handle, and the rotating section is provided at one end of the clamping section close to the handle.

[0009] Preferably, the slider is provided with a through hole, the sliding latch is provided with a connecting column passing through the through hole, and the connecting column is connected to the push handle.

[0010] Preferably, the engaging groove passes through the rotating shaft; the fixing seat is provided with a engaging hole connected with the mounting cavity, the engaging hole extends along the length direction of the rotating shaft, and the sliding engaging pin passes through the engaging groove and extends to the engaging hole.

[0011] Preferably, the pushing handle is provided with a threaded hole, and the outer side of the connecting column is provided with an external thread threadedly connected to the threaded hole.

[0012] Preferably, the sliding block is provided with a positioning hole, and the pushing handle is provided with a positioning rod for extending into the positioning hole.

[0013] Preferably, the fixed seat is provided with a sliding groove slidably connected to the sliding block, and the sliding block is provided with a first limit notch and a second limit notch, the first limit notch and the second limit notch are arranged in sequence along the length direction of the rotating shaft, and the fixed seat is provided with a rolling steel ball and a compression spring, the diameter of the rolling steel ball is larger than the width of the first limit notch and the second limit notch; the compression spring is used to push the rolling steel ball toward the first limit notch or the second limit notch; when the rolling steel ball abuts against the first limit notch, the sliding pin is inserted into the clamping section; when the rolling steel ball abuts against the second limit notch, the sliding pin is inserted into the rotating section.

[0014] Preferably, a first groove and a second groove are provided on the side of the slider facing the mounting hole, and the first groove and the second groove are arranged in sequence along the length direction of the rotating shaft; when the rolling steel ball abuts against the first limiting notch, the first groove faces the mounting hole; when the rolling steel ball abuts against the second limiting notch, the second groove faces the mounting hole.

[0015] Preferably, it also includes: an outer door seat; the outer door seat is connected to the fixing seat by bolts.

[0016] Preferably, it also includes: an emergency fork; the emergency fork has a connecting section and a toggle section, the connecting section is located in the installation cavity, and the connecting section is connected to the sliding pin; the outer door seat is provided with a toggle cavity, and one side of the outer door seat is provided with a toggle hole connected to the toggle cavity; the toggle hole extends along the length direction of the rotating shaft; the toggle section extends into the toggle cavity, and the toggle section is provided with a toggle jack corresponding to the toggle hole.

[0017] Preferably, the connecting section is provided with a sleeve hole, and the sliding bayonet passes through the sleeve hole.

[0018] Preferably, it further includes: a transmission square rod; the transmission square rod is in transmission connection with the handle; the transmission square rod is provided with a fork hole parallel to the length direction of the rotating shaft, and the emergency fork penetrates through the fork hole.

[0019] The door handle lock provided by the present invention has the following beneficial effects: when the sliding pin of the anti-lock push rod of the door handle lock is in the clamping section of the clamping groove of the rotating shaft, the rotating shaft cannot rotate relative to the sliding pin, and the rotating shaft, the handle and the sliding pin and the fixed seat are relatively stationary, so that the door handle lock can be in the anti-lock state, preventing the user from rotating the handle to unlock, achieving the purpose of anti-lock. That is, the anti-lock structure of the door handle lock is integrated on the fixed seat. Therefore, when installing the door handle lock, directly fixing the fixed seat on the door body can complete the installation of the door handle lock, without the need to pre-install an anti-lock plate, reducing the number of door lock fittings, simplifying the door lock installation process, shortening the door lock installation time, and improving the door lock installation efficiency.

[0020] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the door handle lock in the anti-lock state according to an embodiment of the present invention;

[0022] Figure 2 is an exploded structural diagram of the handle, the fixed seat and the anti-lock push rod according to an embodiment of the present invention;

[0023] Figure 3 is a cross-sectional structural diagram of the sliding pin located in the clamping section according to an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of the door handle lock in the initial state according to an embodiment of the present invention;

[0025] Figure 5 is a cross-sectional structural diagram of the sliding pin located in the rotating section according to an embodiment of the present invention;

[0026] Figure 6 is a schematic position structure diagram of the rolling steel ball when the sliding pin is in the clamping section according to an embodiment of the present invention;

[0027] Figure 7 is a schematic structural diagram of the push handle according to an embodiment of the present invention;

[0028] Figure 8 is a schematic structural diagram of another perspective of the door handle lock according to an embodiment of the present invention;

[0029] Figure 9It is a structural schematic diagram of the emergency shift fork of the door handle lock of the embodiment of the utility model in the reverse locking state;

[0030] Figure 10 It is a structural schematic diagram of an emergency shift fork of a door handle lock of an embodiment of the utility model in an unlocked state.

[0031] In the figure, 100, fixing seat; 110, mounting cavity; 120, mounting hole; 130, clamping hole; 140, slide groove; 150, rolling steel ball; 160, compression spring; 200, handle; 300, anti-lock push rod; 310, slider; 311, through hole; 312, positioning hole; 313, first limiting notch; 314, second limiting notch; 315, first groove; 316, second groove; 320, push handle; 321, threaded hole; 3 22. Positioning column; 330. Sliding latch; 331. Connecting column; 322. Positioning rod; 400. Rotating shaft; 410. Snap-in groove; 411. Snap-in section; 412. Rotating section; 500. Door outer seat; 510. Bolt; 520. Toggle chamber; 530. Toggle hole; 600. Emergency fork; 610. Connecting section; 611. Socket hole; 620. Toggle section; 621. Toggle jack; 700. Transmission square rod; 710. Fork hole. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present utility model, unless otherwise clearly defined, terms such as "setting", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0036] Please refer to Figures 1 to 7 together, and now the door handle lock provided by the embodiment of the present utility model will be described.

[0037] As Figures 1 to 3 shown, the door handle lock of the embodiment of the present utility model includes: a fixed seat 100, a handle 200, an anti-lock push rod 300, and a rotating shaft 400; the fixed seat 100 can be fixed on the door body through bolts 510. An installation cavity 110 is provided in the fixed seat 100. The rotating shaft 400 is provided on the handle 200. The rotating shaft 400 is located in the installation cavity 110, and the rotating shaft 400 is rotatably connected to the fixed seat 100; that is, the handle 200 can rotate relative to the fixed seat 100, and the fixed seat 100 and the handle 200 are of a split design; the fixed seat 100 is provided with an installation hole 120, and the installation hole 120 communicates with the installation cavity 110; the installation hole 120 extends along the length direction of the rotating shaft 400; the rotation direction of the handle 200 is perpendicular to the length direction of the rotating shaft 400.

[0038] The anti-lock push rod 300 includes a slider 310, a push handle 320, and a sliding latch 330; the slider 310 is slidably connected to the fixed seat 100, the sliding direction of the slider 310 is parallel to the length direction of the rotating shaft 400, the push handle 320 and the sliding latch 330 are both provided on the slider 310, and the push handle 320 extends from the installation hole 120 to the outside of the fixed seat 100 so as to grab the push handle 320 outside the door handle lock and drive the slider 310 and the sliding latch 330 to slide back and forth along the length direction of the rotating shaft 400; the outer diameter of the sliding latch 330 is adapted to the width of the rotating section 412 and the width of the clamping section 411. Then when the sliding latch 330 is located in the clamping section 411, referring to Figure 1 the rotating shaft 400 cannot rotate relative to the sliding latch 330; when the sliding latch 330 is located in the rotating section 412, referring to Figure 4 the sliding latch 330 cannot move along the length direction of the rotating shaft 400.

[0039] The rotating shaft 400 is provided with a clamping groove 410 which has a clamping section 411 and a rotating section 412. The clamping section 411 extends along the length direction of the rotating shaft 400, and the rotating section 412 is perpendicular to the clamping section 411. The rotating section 412 communicates with the clamping section 411. The sliding latch 330 is located within the clamping groove 410, that is, the sliding latch 330 is inserted at the clamping section 411 or the rotating section 412.

[0040] The extending direction of the clamping section 411 is parallel to the length direction of the rotating shaft 400. When the sliding latch 330 is located at the clamping section 411, it is in the anti-lock state at this time. As Figure 1 、 Figure 2 shown, the pushing handle 320 can be grasped and moved back and forth along the length direction of the rotating shaft 400 to drive the slider 310 and the sliding latch 330 to move back and forth within the clamping section 411. Since the clamping section 411 communicates with the rotating section 412, when the sliding latch 330 moves to the intersection of the clamping section 411 and the rotating section 412, the door handle lock is in the initial state at this time. As Figure 4 、 Figure 5 shown, the handle 200 is in a rotatable state so that the sliding latch 330 can move to the rotating section 412, that is, the handle 200 can be rotated so that the door handle lock can be switched from the initial state to the unlocked state. There is a return spring within the fixed seat 100. When the handle 200 is rotated to unlock, the return spring will drive the handle 200 to reset so that the door handle lock is in the initial state.

[0041] When the door handle lock is in the initial state, the sliding latch 330 is located at the intersection of the clamping section 411 and the rotating section 412. If it is necessary to anti-lock the door handle lock, the pushing handle 320 can be grasped and moved along the clamping section 411 at this time to make the sliding latch 330 enter the clamping section 411. Since the outer diameter of the sliding latch 330 is adapted to the width of the rotating section 412 and the width of the clamping section 411, when the sliding latch 330 is located at the clamping section 411, the width of the clamping section 411 is adapted to the outer diameter of the sliding latch 330, so that the sliding latch 330 and the clamping section 411 are restricted in movement in the width direction of the sliding latch 330. The rotating shaft 400 is clamped with the sliding latch 330 through the clamping section 411, and the rotating shaft 400 cannot rotate relative to the sliding latch 330. Moreover, the sliding latch 330 can only slide along the length direction of the rotating shaft 400 through the slider 310 and cannot rotate around the rotating shaft 400. Therefore, at this time, the rotating shaft 400, the handle 200, the sliding latch 330 and the fixed seat 100 are relatively stationary, and the handle 200 and the rotating shaft 400 cannot rotate, so that the door handle lock is in the anti-lock state, preventing the user from rotating the handle 200 to unlock, achieving the purpose of anti-lock.

[0042] When the door handle lock is in the anti-lock state, the pushing handle 320 can be grasped and moved along the clamping section 411 to drive the sliding latch 330 to move from the clamping section 411 to the rotating section 412, so as to release the movement restriction of the sliding latch 330 and the clamping section 411 in the width direction of the sliding latch 330; since the rotating section 412 is perpendicular to the length direction of the rotating shaft 400, the rotating section 412 is perpendicular to the clamping section 411, and the direction of the rotating section 412 is the same as the rotating direction of the handle 200 and the rotating shaft 400, at this time the sliding latch 330 can slide along the rotating section 412, and the rotating shaft 400 can rotate relative to the sliding latch 330, that is, by rotating the handle 200, the rotating shaft 400 rotates, so as to achieve the purpose of unlocking the handle 200.

[0043] When the sliding latch 330 of the anti-lock push rod 300 of the door handle lock in this embodiment is in the clamping section 411 of the clamping groove 410 of the rotating shaft 400, the rotating shaft 400 can be made unable to rotate relative to the sliding latch 330, and the rotating shaft 400, the handle 200 and the sliding latch 330, the fixed seat 100 are relatively stationary, so that the door handle lock can be in the anti-lock state, preventing the user from rotating the handle 200 to unlock, achieving the purpose of anti-lock, that is, the anti-lock structure of the door handle lock is integrated on the fixed seat 100. Therefore, when installing the door handle lock, the fixed seat 100 can be directly fixed on the door body to complete the installation of the door handle lock, without pre-installing an anti-lock piece, reducing the number of door lock fittings, simplifying the door lock installation process, shortening the door lock installation time, and improving the door lock installation efficiency.

[0044] In addition, common locks on the market often have problems such as the pin piece being misaligned due to violent pressing down, making it impossible to unlock and retract. Since the anti-lock structure of the door handle lock in this embodiment is integrated on the fixed seat 100 and there is no need to install a pin piece, the above problems can be solved.

[0045] In some embodiments of the present utility model, referring to Figure 2 , the number of the rotating sections 412 is two, and the two rotating sections 412 are symmetrically arranged on both sides of the clamping section 411 with respect to the clamping section 411. That is, when the door handle lock is in the initial state, the user can rotate in both directions, so that the sliding latch 330 can enter the rotating sections 412 on both sides to adapt to different unlocking positions.

[0046] In some embodiments of the present utility model, referring to Figure 2, the rotating shaft 400 is provided at one end of the handle 200, and the rotating section 412 is provided at one end of the clamping section 411 close to the handle 200, that is, the intersection position of the rotating section 412 and the clamping section 411 is located at one end of the clamping section 411 close to the handle 200. Then, when the push handle 320 moves towards the handle 200 to one end of the clamping section 411, the sliding latch 330 can be moved to the intersection position of the rotating section 412 and the clamping section 411 to release the anti-lock state of the door handle lock, enabling the user to rotate the door handle 200 to unlock, which conforms to the usage habits of most users and facilitates the user to open the door.

[0047] In some embodiments of the present invention, referring to Figure 2 and Figure 3 , the slider 310 is provided with a through hole 311, the sliding latch 330 is provided with a connecting column 331 passing through the through hole 311, and the connecting column 331 is connected to the push handle 320. That is, the sliding latch 330 is connected to the push handle 320 by means of the connecting column 331, so as to facilitate the assembly and molding of the anti-lock push rod 300.

[0048] In some embodiments of the present invention, referring to Figure 2 and Figure 3 , the clamping groove 410 penetrates through the rotating shaft 400; the fixed seat 100 is provided with a clamping hole 130 communicating with the installation cavity 110, the clamping hole 130 extends along the length direction of the rotating shaft 400, and the sliding latch 330 penetrates through the clamping groove 410 and extends to the clamping hole 130. The clamping hole 130 and the installation hole 120 are respectively on different sides of the fixed seat 100. One end of the sliding latch 330 is connected to the push handle 320, and the other end is inserted into the clamping hole 130, which can make the sliding latch 330 be more stably arranged in the clamping groove 410, improve the installation strength of the sliding latch 330, and prevent the sliding latch 330 from being broken when the handle 200 rotates.

[0049] In some embodiments of the present invention, referring to Figure 2 and Figure 3 , the push handle 320 is provided with a threaded hole 321, and the outer side of the connecting column 331 is provided with an external thread threadedly connected to the threaded hole 321; during installation, the slider 310 and the push handle 320 can be first installed in the fixed seat 100, and the rotating shaft 400 is extended into the installation cavity 110. Then, the sliding latch 330 is used to pass through the clamping hole 130 and the clamping groove 410, and the connecting column 331 is aligned with the threaded hole 321. By rotating the sliding latch 330, the connecting column 331 can be threadedly connected to the threaded hole 321, achieving the purpose of installing the anti-lock push rod 300 on the fixed seat 100 and facilitating the assembly of the anti-lock push rod 300.

[0050] In some embodiments of the present invention, referring toFigure 2 , Figure 3 , Figure 7 The slider 310 is provided with a positioning hole 312, and the push handle 320 is provided with a positioning rod 322 for inserting into the positioning hole 312. When the positioning rod 322 is inserted into the positioning hole 312, the relative position of the push handle 320 and the slider 310 is fixed, so that the push handle 320 is prevented from being randomly displaced, and the push handle 320 is conveniently installed on the slider 310.

[0051] In some embodiments of the present invention, referring to Figure 2 , Figure 3 , Figure 6 The fixing seat 100 is provided with a slide groove 140 slidably connected to the slider 310, and the slider 310 is provided with a first limiting notch 313 and a second limiting notch 314, and the first limiting notch 313 and the second limiting notch 314 are arranged in sequence along the length direction of the rotating shaft 400. The fixing seat 100 is provided with a rolling steel ball 150 and a compression spring 160, and the diameter of the rolling steel ball 150 is greater than the width of the first limiting notch 313 and the second limiting notch 314; the compression spring 160 The spring 160 is used to push the rolling steel ball 150 toward the first limiting notch 313 or the second limiting notch 314; when the rolling steel ball 150 abuts against the first limiting notch 313, the sliding latch 330 is inserted into the locking section 411, and the door handle lock is in the reverse lock state; when the rolling steel ball 150 abuts against the second limiting notch 314, the sliding latch 330 is inserted into the rotating section 412, and the door handle lock is in the initial state, and the handle 200 can rotate relative to the fixed seat 100. By setting a structure in which the compression spring 160 pushes the rolling steel ball 150 toward the first limiting notch 313 or the second limiting notch 314, when the user pushes the push handle 320 to put the door handle lock in the reverse lock state, Figure 6 , the rolling steel ball 150 can be stuck in the first limit notch 313, which plays a role in preliminary positioning. The small shaking of the fixed seat 100 will not cause the anti-lock push rod 300 to shift, avoiding the situation where the criminals shake the door handle lock and cause the anti-lock structure to fail, ensuring the normal use of the door handle lock. Similarly, in order to prevent the door handle lock from switching from the initial state to the anti-lock state due to a small shaking of the fixed seat 100, when the door handle lock is in the initial state, the rolling steel ball 150 is stuck in the second limit notch 314, which plays a role in preliminary positioning. It should be noted that the user in the room can drive the slider 310 to overcome the elastic force of the compression spring 160 by toggling the push handle 320, so as to drive the slider 310 and the sliding latch 330 to move along the length direction of the rotating shaft 400.

[0052] In some embodiments of the present invention, referring to Figure 2 , Figure 6The slider 310 is provided with a first groove 315 and a second groove 316 on one side facing the mounting hole 120. The first groove 315 and the second groove 316 are sequentially arranged along the length direction of the rotating shaft 400. When the rolling steel ball 150 abuts against the first limiting notch 313, the first groove 315 faces the mounting hole 120. When the rolling steel ball 150 abuts against the second limiting notch 314, the second groove 316 faces the mounting hole 120. That is, when the door handle lock is in the reverse locking state, the first groove 315 faces the mounting hole 120. A reverse locking mark can be arranged in the first groove 315 so that the reverse locking mark is aligned with the mounting hole 120, so that the user can know that the door handle lock is in the reverse locking state at this time. When the door handle lock is in the initial state, the second groove 316 faces the mounting hole 120. A rotation mark can be set in the second groove 316 so that the rotation mark is aligned with the mounting hole 120, so that the user can know that the door handle lock is in the initial state at this time and can turn the handle 200 to open the door.

[0053] In some embodiments of the present invention, referring to Figure 1 , further comprising: an outer door seat 500; the outer door seat 500 is connected to the fixing seat 100 by bolts 510. The outer door seat 500 is provided with an outer door hole, and the outer door seat 500 is connected to the fixing seat 100 by bolts 510 passing through the outer door hole and the door body, so as to install the fixing seat 100 on the door body.

[0054] In some embodiments of the utility model, it also includes: an emergency fork 600; the emergency fork 600 has a connecting section 610 and a toggle section 620, the connecting section 610 is located in the installation cavity 110, and the connecting section 610 is connected to the sliding latch 330; the outer door seat 500 is provided with a toggle cavity 520, and one side of the outer door seat 500 is provided with a toggle hole 530 connected to the toggle cavity 520; the toggle hole 530 extends along the length direction of the rotating shaft 400; the toggle section 620 extends into the toggle cavity 520, and the toggle section 620 is provided with a toggle socket 621 corresponding to the toggle hole 530. The connecting section 610 and the toggle section 620 of the emergency fork 600 are connected by an extension section so that the connecting section 610 and the toggle section 620 can be transmitted. When emergency unlocking is required, the state at this time is as follows Figure 9 As shown, a slender object such as a toothpick or a nail can be inserted from the toggle hole 530 into the toggle socket 621, and then moved along the length direction of the toggle hole 530 to move the sliding latch 330 to the rotating section 412, thereby releasing the reverse lock. Figure 10As shown. The toggle hole 530 is set on one side of the door outer seat 500. In order to better hide the hole position and make the lock more beautiful, the toggle hole 530 is set on the lower side of the door outer seat 500, so that people outside the door cannot see the toggle hole 530 at a glance, making the lock body more beautiful, and preventing the gangsters outside the door from intuitively finding the toggle hole 530, increasing the difficulty for the gangsters to destroy the lock, ensuring safety in use. In addition, the toggle hole 530 can also be set on the left side, right side, upper side, etc. of the door outer seat 500.

[0055] In some embodiments of the present invention, the connecting section 610 is provided with a sleeve hole 611, and the sliding bayonet 330 passes through the sleeve hole 611. By providing the sleeve hole 611, the sliding bayonet 330 can directly pass through the sleeve hole 611, which facilitates the installation and connection of the sliding bayonet 330 with the emergency fork 600.

[0056] In some embodiments of the utility model, it further includes: a transmission square rod 700; the transmission square rod 700 is transmission-connected with the handle 200; the transmission square rod 700 is provided with a fork hole 710 parallel to the length direction of the rotating shaft 400, and the emergency fork 600 passes through the fork hole 710. The handle 200 has a square hole that matches the transmission square rod 700, and the emergency fork 600 can pass through the fork hole 710 of the transmission square rod 700, so that the connecting section 610 of the emergency fork 600 extends into the installation cavity 110, and the toggle section 620 extends into the toggle cavity 520. In order to facilitate the sliding of the emergency fork 600, the fork hole 710 of the transmission square rod 700 can be slidably connected with the emergency fork 600.

[0057] In summary, when the sliding pin 330 of the anti-lock push rod 300 of the door handle lock is in the engaging section 411 of the engaging groove 410 of the rotating shaft 400, the rotating shaft 400 cannot rotate relative to the sliding pin 330, and the rotating shaft 400, the handle 200, the sliding pin 330, and the fixed seat 100 are relatively stationary, so that the door handle lock can be in an anti-lock state, and the user cannot turn the handle 200 to unlock the door, thereby achieving the purpose of anti-locking. Therefore, when installing the door handle lock, the fixed seat 100 is directly fixed on the door body to complete the installation of the door handle lock without pre-installing the anti-locking plate, thereby reducing the number of door lock assembly parts, simplifying the door lock installation process, shortening the door lock installation time, and improving the door lock installation efficiency.

[0058] The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A door handle lock, characterized in that: include: A fixing seat, a handle, a reverse locking push rod, and a rotating shaft; a mounting cavity is provided in the fixing seat, the rotating shaft is provided on the handle, the rotating shaft is located in the mounting cavity, and the rotating shaft is rotatably connected with the fixing seat; a mounting hole is provided in the fixing seat, the mounting hole is communicated with the mounting cavity; the mounting hole extends along the length direction of the rotating shaft; The anti-lock push rod includes a slider, a push handle, and a sliding latch; the slider is slidably connected to the fixed seat, the sliding direction of the slider is parallel to the length direction of the rotating shaft, the push handle and the sliding latch are both arranged on the slider, and the push handle extends from the mounting hole to the outside of the fixed seat; The rotating shaft is provided with a clamping groove, which has a clamping section and a rotating section. The clamping section extends along the length direction of the rotating shaft, and the rotating section is perpendicular to the clamping section. The rotating section is connected to the clamping section, and the sliding latch is located in the clamping groove.

2. The door handle lock according to claim 1, characterized in that: The number of the rotating sections is two, and the two rotating sections are symmetrically arranged on both sides of the clamping section.

3. The door handle lock according to claim 1, characterized in that: The rotating shaft is arranged at one end of the handle, and the rotating section is arranged at one end of the clamping section close to the handle.

4. The door handle lock according to claim 1, characterized in that: The sliding block is provided with a through hole, and the sliding latch is provided with a connecting column passing through the through hole, and the connecting column is connected to the pushing handle.

5. The door handle lock according to claim 4, characterized in that: The engaging groove passes through the rotating shaft; the fixing seat is provided with an engaging hole connected with the mounting cavity, the engaging hole extends along the length direction of the rotating shaft, and the sliding engaging pin passes through the engaging groove and extends to the engaging hole.

6. The door handle lock according to claim 5, characterized in that: The pushing handle is provided with a threaded hole, and the outer side of the connecting column is provided with an external thread threadedly connected with the threaded hole.

7. The door handle lock according to claim 5, characterized in that: The sliding block is provided with a positioning hole, and the pushing handle is provided with a positioning rod for extending into the positioning hole.

8. The door handle lock according to claim 1, characterized in that: The fixed seat is provided with a sliding groove slidably connected to the sliding block, and the sliding block is provided with a first limit notch and a second limit notch, the first limit notch and the second limit notch are arranged in sequence along the length direction of the rotating shaft, and the fixed seat is provided with a rolling steel ball and a compression spring, the diameter of the rolling steel ball is larger than the width of the first limit notch and the second limit notch; the compression spring is used to push the rolling steel ball to press against the first limit notch or the second limit notch; when the rolling steel ball abuts against the first limit notch, the sliding pin is inserted into the clamping section; when the rolling steel ball abuts against the second limit notch, the sliding pin is inserted into the rotating section.

9. The door handle lock according to claim 8, characterized in that: The slider is provided with a first groove and a second groove on one side facing the mounting hole, and the first groove and the second groove are arranged in sequence along the length direction of the rotating shaft; when the rolling steel ball abuts against the first limiting notch, the first groove faces the mounting hole; when the rolling steel ball abuts against the second limiting notch, the second groove faces the mounting hole.

10. The door handle lock according to claim 1, characterized in that: Also includes: The outer door seat is connected to the fixing seat by bolts.

11. The door handle lock according to claim 10, characterized in that: Also includes: Emergency fork; the emergency fork has a connecting section and a toggle section, the connecting section is located in the installation cavity, and the connecting section is connected to the sliding pin; the outer door seat is provided with a toggle cavity, and one side of the outer door seat is provided with a toggle hole connected to the toggle cavity; the toggle hole extends along the length direction of the rotating shaft; the toggle section extends into the toggle cavity, and the toggle section is provided with a toggle jack corresponding to the toggle hole.

12. The door handle lock according to claim 11, characterized in that: The connecting section is provided with a sleeve hole, and the sliding bayonet passes through the sleeve hole.

13. The door handle lock according to claim 11, characterized in that: Also includes: A transmission square rod; the transmission square rod is in transmission connection with the handle; the transmission square rod is provided with a fork hole parallel to the length direction of the rotating shaft, and the emergency fork passes through the fork hole.

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