Door handle lock with prompting function

Abstract

The door handle lock with the prompting function comprises a front door handle assembly and a rear door handle assembly, a spring bolt assembly is arranged between the front door handle assembly and the rear door handle assembly, and a transmission mechanism capable of driving the spring bolt assembly is arranged in the front door handle assembly and the rear door handle assembly. The transmission mechanism is internally provided with a locking mechanism capable of locking the front door handle assembly and the rear door handle assembly, and is characterized in that the front door handle assembly comprises a front inner gear, an indicator is arranged on the outer side of the front inner gear, the indicator is connected with the locking mechanism, the outer side of the front inner gear is sleeved with a front outer cover capable of adjusting the direction, and the front outer cover is connected with the locking mechanism. At least one observation window capable of displaying the state of the indicator is arranged on the front outer cover, a front handle is movably arranged on the front side of the front inner gear, and the transmission mechanism is connected with the front handle. The door handle lock with the prompting function is simple in structure, the handle and the front outer cover are convenient to assemble and disassemble, and the directions of the handle and the front outer cover can be freely adjusted according to preferences of users.

Description

TECHNICAL FIELD

[0001] The utility model relates to door handle lock technical field, concretely relates to a door handle lock with prompting function. BACKGROUND

[0002] Public toilets or public bath are set to provide people's temporary needs, in order to avoid unknowing people from breaking in when using, usually, the lock of convenient operation is arranged on the door plate of these places, in order to let people outside know that someone is using, the lock is usually matched with the indicating piece with indicating effect, when unlocking or locking, the indicating piece will immediately drive the color change, such as: green represents unlocking state, red represents locking state, so that unknowing people can quickly know the use state of the public toilet or public bath, and avoid unnecessary embarrassment.

[0003] At present, the common indicating lock on the market can be divided into two kinds of lever type and rotating handle type, and only the user on the inside can control unlocking or locking, when equipment failure has not been repaired or is used to place cleaning tools and the like, and temporary closure is required, and general indicating lock cannot play its effect, therefore, the management personnel can only use a set of blocking piece lock or padlock installed on the outside of the door plate, so as to facilitate unlocking or locking operation of the door plate from the outside.

[0004] However, the method of installing the lock not only increases the construction cost, but also must drill holes on the door plate to install, when the lock is removed in the future, it will also cause irreparable damage to the outside of the door plate, and will affect the appearance of use.

[0005] In addition, the handle and the indicating window of the existing door handle lock are generally fixed, and they cannot be adjusted according to the preferences of the user.

[0006] Therefore, the existing door handle lock with prompting function needs to be further improved. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at overcoming the defects in the prior art, and provides a door handle lock with prompting function, which has the advantages of simple structure, convenient installation and removal of handle and front outer cover, and can adjust the direction of handle and front outer cover according to the preferences of the user.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following scheme: a door handle lock with a prompt function, comprising a front door handle assembly and a rear door handle assembly, a lock tongue assembly is provided between the front door handle assembly and the rear door handle assembly, a transmission mechanism that can drive the lock tongue assembly is provided in the front door handle assembly and the rear door handle assembly, and a locking mechanism that can lock the front door handle assembly and the rear door handle assembly is provided in the transmission mechanism, characterized in that: the front door handle assembly includes a front inner block, an indicator is provided on the outer side of the front inner block, the indicator is connected to the locking mechanism, a front outer cover that can adjust the direction is provided on the outer side of the front inner block, at least one observation window that can display the status of the indicator is provided on the front outer cover, a front handle is movably provided on the front side of the front inner block, and the transmission mechanism is connected to the front handle.

[0009] As another improvement of the door handle lock with a prompt function of the present invention, a front tube body is movably arranged on the front side of the front inner gear, the front handle cover is arranged in the front tube body, and a clamping mechanism is provided between the front tube body and the front handle to facilitate direction adjustment of the front handle.

[0010] As another improvement of the door handle lock with a reminder function of the present invention, the clamping mechanism includes a first slot hole opened on the front tube body, second slot holes are symmetrically arranged on the front tube body on both sides of the first slot hole, a clamping piece is provided in the front tube body, a clamping protrusion is provided in the middle of the clamping piece, and limiting hooks are respectively provided at both ends of the clamping piece, the clamping protrusion is movably arranged in the first slot hole, the limiting hook is arranged in the second slot hole, an assembly hole is provided in the clamping protrusion, and an elastic lever that can drive the clamping protrusion to extend out of the first slot hole is provided on the front tube body, the front handle includes a front connecting sleeve, the front tube body is inserted in the front connecting sleeve, a handle rod is provided on the outer wall of one end of the front connecting sleeve, and positioning slots are symmetrically arranged in the front connecting sleeve, and the clamping protrusion is clamped in one of the positioning slots.

[0011] As another improvement of the door handle lock with a prompt function of the present invention, two positioning grooves are symmetrically provided in the front tube body, and positioning blocks are provided in the front connecting sleeve at positions corresponding to the positioning grooves, and the positioning blocks are inserted into the positioning grooves.

[0012] As another improvement of the door handle lock with a reminder function of the present invention, four snap-fitting slots are evenly distributed on the outer periphery of the front inner gear, and snap-fitting protrusions are provided at positions corresponding to the front outer cover and the snap-fitting slots, and the snap-fitting protrusions are snapped into the snap-fitting slots.

[0013] As another improvement of the door handle lock with prompting function of the utility model, the rear door handle assembly comprises a rear inner cover, a rear pipe body movably arranged on the rear inner cover, a rear handle with adjustable direction arranged on the rear pipe body, and a rear outer cover arranged on the outer side of the rear inner cover.

[0014] As another improvement of the door handle lock with prompting function of the utility model, a front stud cylinder is arranged on the inner side of the front door handle assembly, a rear stud cylinder is arranged at the corresponding position of the rear door handle assembly and the front stud cylinder, and a connecting screw is arranged in the rear stud cylinder and the front stud cylinder.

[0015] As another improvement of the door handle lock with prompting function of the utility model, the lock tongue assembly comprises a gasket arranged on the front stud cylinder, a lock tongue cylinder arranged on one side of the gasket, a tongue lock movably arranged in the lock tongue cylinder, a reset spring arranged on the lock tongue cylinder and capable of resetting the tongue lock, a transmission plate movably arranged in the gasket, an end of the transmission plate buckled with the tongue lock, two cams arranged in the gasket and capable of driving the transmission plate, a first square hole arranged in the middle of the cam, and the transmission mechanism arranged in the first square hole.

[0016] As another improvement of the door handle lock with prompting function of the utility model, the transmission mechanism comprises a square core, one end of the square core connected with the front handle, a second square hole arranged on the inner side of the rear pipe body, and the other end of the square core inserted into the second square hole.

[0017] As another improvement of the door handle lock with prompting function of the utility model, the locking mechanism comprises a safety lever arranged in the square core, one end of the safety lever connected with a locking knob arranged in the end of the rear pipe body, the other end of the safety lever arranged in the front pipe body and connected with a lock head arranged in the end of the front pipe body, a locking clamping groove symmetrically arranged in the front inner cover, two brake pieces arranged at the corresponding position of the safety lever and the locking clamping groove and capable of stretching to the locking clamping groove when the safety lever rotates, an inner protrusion arranged in the front pipe body, a connecting ring arranged in the front pipe body, a clamping groove arranged at the corresponding position of the connecting ring and the inner protrusion, the inner protrusion clamped in the clamping groove, an indicator comprising an indicator ring, a center connecting seat arranged in the indicator ring through a connecting piece, an assembly groove arranged in the center connecting seat, the safety lever arranged in the assembly groove, a positioning protrusion arranged on the side of the center connecting seat facing the connecting ring, a limiting clamping groove arranged at the corresponding position of the connecting ring and the positioning protrusion, the positioning protrusion clamped in the limiting clamping groove, two top pressing pieces arranged on the safety lever between the center connecting seat and the brake piece, and a top pressing spring arranged between the two top pressing pieces.

[0018] In summary, the utility model has the beneficial effects that relative to the prior art: the utility model simple structure, observation window and handle can be adjusted according to the user's preference or habit, and the adjustment is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional schematic view of the utility model.

[0020] Figure 2 It is Figure 1 One of the sectional exploded schematic view.

[0021] Figure 3 It is Figure 2 The enlarged schematic view of A in the utility model.

[0022] Figure 4 It is Figure 1 Second of the sectional exploded schematic view.

[0023] Figure 5 It is Figure 4 The enlarged schematic view of B in the utility model.

[0024] Figure 6 It is the exploded schematic view of the front door handle assembly of the utility model.

[0025] Figure 7 It is Figure 6 The enlarged schematic view of C in the utility model.

[0026] Figure 8 It is one of the structural schematic view of the front door handle assembly of the utility model.

[0027] Figure 9 It is the second structural schematic view of the front door handle assembly of the utility model.

[0028] Figure 10 It is the schematic view of the locking mechanism of the utility model.

[0029] Figure 11 It is the exploded schematic view of the locking mechanism of the utility model.

[0030] Figure 12 It is the structural schematic view of the front handle of the utility model.

[0031] In the figure: 1, front door handle assembly; 11, front inner cover; 12, indicator; 121, indicating ring; 122, connecting piece; 123, center connecting seat; 124, assembly groove; 125, positioning convex rib; 126, limiting clamping groove; 127, top pressing piece; 128, top pressing spring; 13, front outer cover; 14, observation window; 15, front handle; 151, front connecting sleeve; 152, handle rod; 153, positioning clamping groove; 16, front pipe body; 17, positioning missing slot; 18, positioning plug; 19, clamping hole groove; 110, clamping convex point; 2, rear door handle assembly; 21, rear inner cover; 22, rear pipe body; 23, rear handle; 24, rear outer cover; 3, lock tongue assembly; 31, gasket; 32, lock tongue cylinder; 33, tongue lock; 34, transmission plate; 35, cam; 36, first square hole; 4, transmission mechanism; 41, square core; 42, second square hole; 5, locking mechanism; 51, safety lever; 52, locking knob; 53, lock head; 54, locking clamping groove; 55, brake piece; 56, inner convex block; 57, connecting ring; 58, clamping groove; 6, clamping mechanism; 61, first slot hole; 62, second slot hole; 63, clamping piece; 64, clamping convex block; 65, limiting clamping hook; 66, assembly hole; 67, elastic push rod; 7, front stud cylinder; 8, rear stud cylinder; 9, connecting screw. DETAILED DESCRIPTION

[0032] The above and other technical features and advantages of the present application will be more apparent from the following detailed description of the application, taken in conjunction with the accompanying drawings.

[0033] The preferred embodiments of the present application will be described herein below with reference to the accompanying drawings. It is to be understood that these embodiments are merely intended to explain the technical principles of the present application, and are not intended to limit the scope of protection of the present application.

[0034] It should be noted that, in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, it should also be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] As Figures 1-12 The door handle lock with prompting function comprises a front door handle assembly 1, a rear door handle assembly 2, a latch assembly 3 arranged between the front door handle assembly 1 and the rear door handle assembly 2, a transmission mechanism 4 arranged in the front door handle assembly 1 and the rear door handle assembly 2 and capable of driving the latch assembly 3, and a locking mechanism 5 arranged in the transmission mechanism 4 and capable of locking the front door handle assembly 1 and the rear door handle assembly 2, wherein the front door handle assembly 1 comprises a front inner cover 11, an indicator 12 arranged on the outer side of the front inner cover 11, the indicator 12 being connected with the locking mechanism 5, a front outer cover 13 capable of adjusting the direction being arranged on the outer side of the front inner cover 11, at least one observation window 14 capable of displaying the state of the indicator 12 being arranged on the front outer cover 13, and a front handle 15 being movably arranged on the front side of the front inner cover 11, the transmission mechanism 4 being connected with the front handle 15.

[0037] The door handle lock can be applied to bathrooms, fitting rooms and conference rooms. The indicator 12 displays green color, words or icons in the normally open state and displays red color, words or icons when being locked.

[0038] The front outer cover 13 can adjust the position of the observation window 14 according to the preference of a user, and the front handle is arranged above / below the door handle or on one side (left / right) of the door opening direction.

[0039] The transmission mechanism 4 can drive the front door handle assembly 1, the rear door handle assembly 2 and the latch assembly 3 to move synchronously when the front door handle assembly 1 or the rear door handle assembly 2 is pressed.

[0040] The front handle 15 is arranged in the front pipe body 16, and the clamping mechanism 6 is arranged between the front pipe body 16 and the front handle 15 to facilitate the direction adjustment of the front handle 15. The front handle 15 and the front pipe body 16 can be quickly disassembled or assembled. The user can adjust the position of the front handle 15 according to the preference or habit, and the front handle 15 can be adjusted to left or right.

[0041] In the present invention, a plug-in tab 161 is provided at one end of the front tube body 16, a limiting end piece 162 is provided on the inner side of the front inner member 11, and a plug-in slot is provided at the corresponding position of the limiting end piece 162 and the plug-in tab 161. The plug-in tab 161 is inserted into the plug-in slot. A limiting arcuate slot 164 is provided on the front tube body 16 outside the front inner member 11, and a limiting buckle 165 is fixed in the limiting arcuate slot 164. A limiting ridge 166 is provided on the limiting end piece 162, and a torsion spring 163 is sleeved on the front tube body 16, with the two ends of the torsion spring 163 respectively disposed on either side of the limiting ridge 166. Under the action of the torsion spring 163, the front handle 15 can be easily reset.

[0042] The clamping mechanism 6 of the present invention includes a first slot 61 opened on the front tube body 16, and second slots 62 are symmetrically provided on the front tube body 16 on both sides of the first slot 61. A clamping member 63 is provided in the front tube body 16, and a clamping protrusion 64 is provided in the middle of the clamping member 63. Limiting hooks 65 are respectively provided at both ends of the clamping member 63. The clamping protrusion 64 is movably provided in the first slot 61, and the limiting hook 65 is provided in the second slot 62. 64 is provided with an assembly hole 66, and the front tube body 16 is provided with an elastic lever 67 that can drive the engaging protrusion 64 to extend out of the first slot 61. In the present invention, a connecting long slot 68 is provided at a position corresponding to the first slot 61 on the front tube body 16. Two through holes 69 are provided at intervals on the end of the front tube body 16 away from the first slot 61. One end of the elastic lever 67 is wound around the two through holes 69, and the other end is inserted into the assembly hole 66. The elastic lever 6 is arranged in the connecting long slot 68. The front handle 15 includes a front connecting sleeve 151, and the front tube body 16 is inserted into the front connecting sleeve 151. A handle rod 152 is provided on the outer wall of one end of the front connecting sleeve 151. Positioning slots 153 are symmetrically provided in the front connecting sleeve 151, and the engaging protrusion 64 is engaged in one of the positioning slots 153. Two symmetrical positioning notches 17 are provided in the front tube 16. Positioning blocks 18 are provided in the front connecting sleeve 151 at positions corresponding to the positioning notches 17. The positioning blocks 18 are inserted into the positioning notches 17. The elastic lever 67 of the present invention can drive the engaging protrusion 64 to protrude out of the first slot 61, thereby engaging with the positioning notches 17 of the front handle 15.

[0043] In the present invention, four snap-fitting slots 19 are evenly distributed on the outer circumference of the front inner guard 11 , and snap-fitting protrusions 110 are provided at positions corresponding to the snap-fitting slots 19 on the front outer cover 13 , and the snap-fitting protrusions 110 are snapped into the snap-fitting slots 19 .

[0044] The user can adjust the position of the observation window 14 on the front outer cover 13 according to respective preferences, and the front outer cover 13 is convenient to mount or dismount with the front inner cover 11.

[0045] The rear door handle assembly 2 comprises a rear inner cover 21, a rear pipe body 22 movably arranged on the rear inner cover 21, a rear handle 23 arranged on the rear pipe body 22 and capable of adjusting a direction, and a rear outer cover 24 arranged on the outer side of the rear inner cover 21.

[0046] The front door handle assembly 1 comprises a front stud cylinder 7 arranged on the inner side of the front door handle assembly 1, a rear stud cylinder 8 arranged at a position corresponding to the front stud cylinder 7 of the rear door handle assembly 2, and a connecting screw 9 arranged in the rear stud cylinder 8 and the front stud cylinder 7.

[0047] The lock tongue assembly 3 comprises a gasket 31 arranged on the front stud cylinder 7, a lock tongue cylinder 32 arranged on one side of the gasket 31, a tongue lock 33 movably arranged in the lock tongue cylinder 32, a reset spring arranged in the lock tongue cylinder 32 and capable of resetting the tongue lock 33, a transmission plate 34 movably arranged in the gasket 31, an end of the transmission plate 34 buckled with the tongue lock, two cams 35 arranged in the gasket 31 and capable of driving the transmission plate 34, a first square hole 36 arranged in the middle of the cam 35, and the transmission mechanism 4 arranged in the first square hole 36.

[0048] The transmission mechanism 4 comprises a square core 41, one end of the square core 41 connected with the front handle 15, a second square hole 42 arranged on the inner side of the rear pipe body 22, and the other end of the square core 41 inserted into the second square hole 42.

[0049] The locking mechanism 5 comprises a safety lever 51 arranged in the square core 41, one end of the safety lever 51 is connected with a locking knob 52 arranged in the end of the rear pipe body 22, the other end of the safety lever 51 is arranged in the front pipe body 16 and is connected with a lock head 53 arranged in the end of the front pipe body 16, a locking clamping groove 54 is symmetrically arranged in the front inner shutter 11, and two brake pieces 55 capable of extending to the locking clamping groove 54 when the safety lever rotates are arranged at the corresponding positions of the safety lever 51 and the locking clamping groove 54.

[0050] The utility model discloses a front pipe body 16 is equipped with an inner lug 56, is equipped with a connecting ring 57 in the front pipe body 16, is equipped with the clamping groove 58 in the corresponding position of connecting ring 57 and inner lug 56, the inner lug 56 is clamped in the clamping groove 58, the indicator 12 includes the indicating ring 121, is equipped with the center connecting seat 123 through the connecting piece 122 in the indicating ring 121, is equipped with the assembly groove 124 in the center connecting seat 123, the safety lever 51 is arranged in the assembly groove 124, is equipped with the positioning convex rib 125 on the side of center connecting seat 123 to connecting ring 57, is equipped with the limit clamping groove 126 in the corresponding position of connecting ring 57 and positioning convex rib 125, the positioning convex rib 125 is clamped in the limit clamping groove 126, two top pressure pieces 127 are sleeved on the safety lever 51 between center connecting seat 123 and brake piece 55, and the top pressure spring 128 is arranged between the two top pressure pieces 127.

[0051] The utility model discloses a safety lever rotates and drives the indicator 12 to rotate in the door lock, and according to the longitudinal transverse position of the safety lever, the prompt board is different in the observation window 14 prompt. The hollow two sides of the indicator 12 are equipped with the positioning convex rib 125, the connecting ring 57 is arranged in the front handle, when the connecting ring 57 limit clamping groove 126 and the positioning convex rib 125 of indicator 12 coincide, the exerted force of back top pressure spring 128 is applied to the indicator 12 in the reciprocating motion process, and the indicator 12 shows the content effect stable, and the adverse phenomenon of red and green effect coexistence does not appear.

[0052] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A door handle lock with a prompting function, comprising a front door handle assembly (1) and a rear door handle assembly (2), a lock tongue assembly (3) being provided between the front door handle assembly (1) and the rear door handle assembly (2), a transmission mechanism (4) capable of driving the lock tongue assembly (3) being provided in the front door handle assembly (1) and the rear door handle assembly (2), a locking mechanism (5) capable of locking the front door handle assembly (1) and the rear door handle assembly (2) being provided in the transmission mechanism (4), and characterized in that: The front door handle assembly (1) comprises a front inner frame (11), an indicator (12) is arranged on the outer side of the front inner frame (11), the indicator (12) is connected with a locking mechanism (5), a front outer cover (13) capable of adjusting direction is arranged on the outer side of the front inner frame (11), at least one observation window (14) capable of displaying the state of the indicator (12) is arranged on the front outer cover (13), a front handle (15) is movably arranged on the front side of the front inner frame (11), and the transmission mechanism (4) is connected with the front handle (15).

2. The door handle lock with a prompting function according to claim 1, characterized in that: A front pipe body (16) is movably arranged on the front side of the front inner frame (11), and the front handle (15) is sleeved in the front pipe body (16).

3. The door handle lock with a prompting function according to claim 2, characterized in that: The clamping mechanism (6) comprises a first slot hole (61) arranged on the front pipe body (16), second slot holes (62) symmetrically arranged on the front pipe body (16) on both sides of the first slot hole (61), a clamping piece (63) arranged in the front pipe body (16), a clamping protrusion (64) arranged in the middle of the clamping piece (63), limit clamping hooks (65) respectively arranged at both ends of the clamping piece (63), the clamping protrusion (64) movably arranged in the first slot hole (61), the limit clamping hooks (65) arranged in the second slot holes (62), an assembly hole (66) arranged in the clamping protrusion (64), and an elastic push rod (67) arranged on the front pipe body (16) and capable of driving the clamping protrusion (64) to protrude out of the first slot hole (61).

4. The door handle lock with a prompting function according to claim 3, characterized in that: The front handle (15) comprises a front connecting sleeve (151), the front pipe body (16) is inserted into the front connecting sleeve (151), a handle lever (152) is arranged on the outer wall of one end of the front connecting sleeve (151), and positioning clamping grooves (153) are symmetrically arranged in the front connecting sleeve (151).

5. The door handle lock with a prompting function according to claim 1, characterized in that: Two positioning missing grooves (17) are symmetrically arranged in the front pipe body (16), and a positioning plug (18) is arranged in the front connecting sleeve (151) at a position corresponding to the positioning missing groove (17).

6. The door handle lock with a prompting function according to claim 1, characterized in that: Four clamping hole grooves (19) are uniformly distributed on the outer periphery of the front inner frame (11), clamping protrusions (110) are arranged on the front outer cover (13) at positions corresponding to the clamping hole grooves (19), and the clamping protrusions (110) are clamped in the clamping hole grooves (19). The rear door handle assembly (2) comprises a rear inner frame (21), a rear pipe body (22) is movably arranged on the rear inner frame (21), a rear handle (23) capable of adjusting direction is sleeved on the rear pipe body (22), and a rear outer cover (24) is sleeved on the outer side of the rear inner frame (21).

7. The door handle lock with a prompting function according to claim 6, characterized in that: The front door handle assembly (1) is provided with a front stud cylinder (7), and the rear door handle assembly (2) is provided with a rear stud cylinder (8) at the corresponding position of the front stud cylinder (7), and the rear stud cylinder (8) and the front stud cylinder (7) are provided with a connecting screw (9) therein.

8. The door handle lock with a prompting function according to claim 7, characterized in that: The lock tongue assembly (3) comprises a gasket (31) provided on the front stud cylinder (7), a lock tongue cylinder (32) provided on one side of the gasket (31), a tongue lock (33) movably provided in the lock tongue cylinder (32), a reset spring (37) provided in the lock tongue cylinder (32) and capable of resetting the tongue lock (33), a transmission plate (34) movably provided in the gasket (31), an end of the transmission plate (34) being buckled with the tongue lock, two cams (35) provided in the gasket (31) and capable of driving the transmission plate (34), and a first square hole (36) provided in the middle of the cam (35), wherein the transmission mechanism (4) is provided in the first square hole (36).

9. The door handle lock with a prompting function according to claim 8, characterized in that: The transmission mechanism (4) comprises a square core (41), one end of the square core (41) being connected with the front handle (15), a second square hole (42) being provided in the inside of the rear tube body (22), and the other end of the square core (41) being inserted into the second square hole (42).

10. The door handle lock with a prompting function according to claim 9, characterized in that: The locking mechanism (5) comprises a safety lever (51) provided in the square core (41), one end of the safety lever (51) being connected with a locking knob (52) provided in the end of the rear tube body (22), the other end of the safety lever (51) being provided in the front tube body (16) and connected with a lock head (53) provided in the end of the front tube body (16), a locking clamping groove (54) being symmetrically provided in the front inner panel (11), two brake pieces (55) being provided at the corresponding positions of the safety lever (51) and the locking clamping groove (54) and capable of stretching to the locking clamping groove (54) when the safety lever rotates, an inner protrusion (56) being provided in the front tube body (16), a connecting ring (57) being provided in the front tube body (16), a clamping groove (58) being provided at the corresponding positions of the connecting ring (57) and the inner protrusion (56), the inner protrusion (56) being clamped in the clamping groove (58), the indicator (12) comprising an indicator ring (121), a central connecting seat (123) being provided in the indicator ring (121) through a connecting piece (122), an assembly groove (124) being provided in the central connecting seat (123), the safety lever (51) being provided in the assembly groove (124), a positioning protrusion (125) being provided on the side of the central connecting seat (123) facing the connecting ring (57), a limiting clamping groove (126) being provided at the corresponding positions of the connecting ring (57) and the positioning protrusion (125), the positioning protrusion (125) being clamped in the limiting clamping groove (126), two pressing pieces (127) being provided on the safety lever (51) between the central connecting seat (123) and the brake piece (55), and a pressing spring (128) being provided between the two pressing pieces (127).

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