Door lock structure

Abstract

The utility model discloses a door lock structure which comprises an inner door handle structure, an outer door handle structure and a square shaft, a lock body shifting piece is arranged in the center of the square shaft in a penetrating mode, the inner door handle structure comprises an inner door handle body and an inner door handle seat, and an inner door square shaft connecting piece is rotatably connected in the inner door handle seat. An inner door counter locking structure connected with the inner door square shaft connecting piece is arranged in the inner door handle body; the outer door handle structure comprises an outer door handle body and an outer door handle seat, an outer door square shaft connecting piece is rotatably connected in the outer door handle seat, and an outer door counter locking structure connected with the outer door square shaft connecting piece is arranged in the outer door handle body; and close-fitting bearings are arranged between the inner door counter locking structure and the inner door handle seat and between the outer door counter locking structure and the inner door handle seat. The handle is reasonable in structural arrangement, close-fitting stability of the connecting position can be guaranteed, rotation smoothness of the handle can be improved, shaking of the handle can be reduced, using stability and effectiveness are improved, and abrasion is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of door lock, specifically relates to a door lock structure. BACKGROUND

[0002] The door lock is a common structure used on the door body, which comprises an inner door handle, an outer door handle, a square shaft and the like, which can meet the use demand in general conditions, but the door handle and the door handle seat are not tightly matched with bearings, so that the rotation of the handle is not smooth, the handle is easy to shake, the use stability is affected, and the conventional door lock has a complex structure, is easy to damage the internal structure, affects the use safety and is limited in applicability. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a door lock structure which is reasonable in structure and is favorable for improving rotation smoothness.

[0004] The technical scheme for realizing the utility model is a door lock structure, which comprises an inner door handle structure, an outer door handle structure and a square shaft, the center of the square shaft is provided with a lock body push piece, the inner door handle structure comprises an inner door handle body and an inner door handle seat, the inner door handle seat is rotatably connected with an inner door square shaft connecting piece, the inner door handle body is provided with an inner door anti-lock structure connected with the inner door square shaft connecting piece;

[0005] The outer door handle structure comprises an outer door handle body and an outer door handle seat, the outer door handle seat is rotatably connected with an outer door square shaft connecting piece, the outer door handle body is provided with an outer door anti-lock structure connected with the outer door square shaft connecting piece;

[0006] Tight matching bearings are arranged between the inner door anti-lock structure and the inner door handle seat and between the outer door anti-lock structure and the inner door handle seat.

[0007] Both ends of the square shaft are connected with the inner door square shaft connecting piece and the outer door square shaft connecting piece respectively.

[0008] Further preferably, a snap spring groove is arranged on the outer wall of the inner door anti-lock structure and the outer door anti-lock structure, and a snap spring body is arranged in the snap spring groove.

[0009] The end face of the inner door handle seat and the outer door handle seat is provided with a circular cavity, the tight matching bearing is located in the circular cavity, and the tight matching bearing is arranged on the outer side of the inner door anti-lock structure and the outer door anti-lock structure and is limited by the snap spring body.

[0010] Further preferably, the tight matching bearing is a cylindrical bearing.

[0011] Further preferably, the inner door anti-lock structure comprises an anti-lock piece, a rotating piece, two anti-lock steel balls and a reset torsion spring.

[0012] The anti-lock piece is fixed on the inner door handle body by a screw, the end of the anti-lock piece is rotatably connected in the inner door handle seat, and a tight fit bearing is arranged between the anti-lock piece and the inner door handle seat, and the reset torsion spring is arranged at the end surface connection position of the anti-lock piece and the inner door handle seat.

[0013] Two anti-lock clamping vertical grooves are arranged on the inner wall of the anti-lock piece, and the two anti-lock clamping vertical grooves are arranged at the two ends of the diameter of the anti-lock piece.

[0014] A circular recess is arranged on the end surface of the inner door square shaft connecting piece, two U-shaped avoiding grooves are arranged on the side wall of the circular recess, the two U-shaped avoiding grooves are arranged at the two ends of the diameter of the circular recess, and the anti-lock piece is sleeved on the inner door square shaft connecting piece.

[0015] An anti-lock guide protrusion is arranged on the end surface of the rotating piece, and the anti-lock steel ball is arranged in the U-shaped avoiding groove and abuts against the side surface of the anti-lock guide protrusion.

[0016] The rotating piece rotates and drives the anti-lock guide protrusion to rotate, the anti-lock steel ball moves on the anti-lock guide protrusion and extends or retracts into the U-shaped avoiding groove, the outer side of the anti-lock steel ball is clamped into the anti-lock clamping vertical groove when the anti-lock steel ball extends out of the U-shaped avoiding groove, so that the inner door square shaft connecting piece and the anti-lock piece are locked, at this time, the inner door handle body rotates to drive the inner door square shaft connecting piece to rotate synchronously, and the outer side of the anti-lock steel ball is separated from the anti-lock clamping vertical groove when the anti-lock steel ball retracts into the U-shaped avoiding groove, so that the inner door square shaft connecting piece does not rotate when the inner door handle body rotates.

[0017] Further preferably, the symmetric side surfaces of the anti-lock guide protrusion are provided with S-shaped abutting parts, and the end of the S-shaped abutting part is integrally formed with an arc-shaped groove, and the depth of the arc-shaped groove is smaller than the depth of the recessed area of the S-shaped abutting part.

[0018] The anti-lock steel ball is arranged in the recessed area of the S-shaped abutting part, and the outer side of the anti-lock steel ball retracts into the U-shaped avoiding groove.

[0019] The anti-lock steel ball is arranged in the arc-shaped groove, and the outer side of the anti-lock steel ball extends out of the U-shaped avoiding groove and is clamped into the anti-lock clamping vertical groove.

[0020] Further preferably, the symmetric side surfaces of the anti-lock guide protrusion are provided with S-shaped abutting parts, and the end of the S-shaped abutting part is integrally formed with an arc-shaped groove, and the depth of the arc-shaped groove is smaller than the depth of the recessed area of the S-shaped abutting part.

[0021] The end of the lock body push piece is clamped into the one-shaped clamping groove.

[0022] Further preferably, the outer door anti-lock structure is the same as the inner door anti-lock structure.

[0023] Further preferably, the outer side surface of the rotating member is connected with the lock body of the outer door handle body or the anti-lock knob of the inner door handle body.

[0024] Further preferably, the square shaft and the lock body are both iron structures.

[0025] The inner door handle body, the inner door handle seat, the inner door square shaft connecting piece, the inner door anti-lock structure, the outer door handle body, the outer door handle seat, the outer door square shaft connecting piece and the outer door anti-lock structure are all zinc alloy structures.

[0026] The anti-lock steel ball is a 304 stainless steel material body.

[0027] Further preferably, the width of the U-shaped avoiding slot is smaller than the diameter of the anti-lock steel ball, and the depth of the U-shaped avoiding slot is not smaller than the diameter of the anti-lock steel ball.

[0028] The utility model has the positive effect that: 1, the utility model discloses reasonable structure setting, and the inner door anti-lock structure and the inner door handle seat between, the outer door anti-lock structure and the inner door handle seat between all are provided with the close fitting bearing, and it not only can guarantee the close fitting stability of connecting place, and through close fitting bearing, also be favorable to improve handle rotation smoothness, and also can reduce handle shaking situation, improve use stability and effectiveness, reduce attrition, improve the service life.

[0029] 2, the close fitting bearing is located at the outside of the inner door anti-lock structure and the outer door anti-lock structure and is limited through the snap spring body, through the above structure, can improve the convenience and stability of close fitting bearing dismounting, improve the efficiency and effectiveness of assembly.

[0030] 3, the inner door anti-lock structure includes anti-lock piece, rotating member, two anti-lock steel balls and reset torsion spring, and the symmetrical side of anti-lock guide protrusion is provided with S-shaped abutment part, and the end of S-shaped abutment part is integrally formed with arc-shaped groove, through the above structure, through the cooperation of anti-lock steel ball and rotating member anti-lock guide protrusion, the anti-lock operation can be effectively realized, and the use effectiveness and reliability are guaranteed.

[0031] 4, the inner wall of anti-lock piece is provided with two anti-lock clamping vertical grooves, through the above structure, when rotating member rotates, anti-lock operation can be realized through the cooperation of anti-lock steel ball, U-shaped avoiding slot and anti-lock clamping vertical groove, and the inner door handle body or the outer door handle body can also be pressed down alone during use, and the anti-lock steel ball can move in the anti-lock clamping vertical groove, effectively reducing the stress damage of internal components, thereby improving the use stability and reliability, and also being favorable to improve the service life of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments and in combination with the drawings, wherein:

[0033] Figure 1 It is a structure schematic view of the utility model;

[0034] Figure 2 It is a split structure schematic view of the utility model;

[0035] Figure 3 It is a specific structure schematic view of the inner door handle structure in the utility model;

[0036] Figure 4 It is a specific structure schematic view of the inner door square shaft connecting piece in the utility model;

[0037] Figure 5 It is a specific structure schematic view of the anti-lock piece in the utility model;

[0038] Figure 6 It is another view structure diagram of Figure 5 ;

[0039] Figure 7 It is a specific structure schematic view of the rotating piece in the utility model.

[0040] The figure mark: inner door handle structure 1, inner door handle body 11, inner door handle seat 12, inner door square shaft connecting piece 13, inner door anti-lock structure 14, anti-lock piece 141, rotating piece 142, anti-lock steel ball 143, reset torsional spring 144, outer door handle structure 2, outer door handle body 21, outer door handle seat 22, outer door square shaft connecting piece 23, outer door anti-lock structure 24, square shaft 3, lock body push piece 4, tight fit bearing 5, clamping spring groove 6, clamping spring body 7, round cavity 8, anti-lock clamping position vertical groove 9, circular recess 10, U-shaped avoiding slot 15, anti-lock guiding convex 16, one-dimensional clamping groove 17, S-shaped abutting part 18, arc-shaped recess 19. DETAILED DESCRIPTION

[0041] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0042] EMBODIMENT

[0043] In this embodiment, the inside is the indoor side, and the outside is the outdoor side.

[0044] See Figures 1 to 7As shown, a door lock structure, including an inner door handle structure 1, an outer door handle structure 2 and a square shaft 3, the center of the square shaft is provided with a lock body tab 4, in this embodiment, the square shaft and the lock body tab are the conventional structure of the prior art, only simple application, therefore not detailed record;

[0045] In this embodiment, the inner door handle structure includes an inner door handle body 11 and an inner door handle seat 12, the inner door handle seat is rotatably connected with an inner door square shaft connecting piece 13, the inner door handle body is provided with an inner door anti-lock structure 14 connected with the inner door square shaft connecting piece; in this embodiment, the inner door handle body, the inner door handle seat and the inner door square shaft connecting piece are the conventional structure of the prior art, only simple application;

[0046] At the same time, the outer door handle structure includes an outer door handle body 21 and an outer door handle seat 22, the outer door handle seat is rotatably connected with an outer door square shaft connecting piece 23, the outer door handle body is provided with an outer door anti-lock structure 24 connected with the outer door square shaft connecting piece; in this embodiment, the outer door handle body, the outer door handle seat and the outer door square shaft connecting piece are the conventional structure of the prior art, only simple application;

[0047] In this embodiment, the inner door anti-lock structure and the inner door handle seat, the outer door anti-lock structure and the inner door handle seat are provided with a tight fit bearing 5; in this embodiment, the tight fit bearing is a cylindrical bearing. The tight fit bearing can realize the tight fit connection of the inner door anti-lock structure and the inner door handle seat, and the tight fit connection of the outer door anti-lock structure and the outer door handle seat, which not only can ensure the stability and reliability of the tight fit connection, but also can improve the smoothness of the handle rotation when the inner door handle body or the outer door handle body rotates in the inner door handle seat or the outer door handle seat, and also can reduce the shaking of the handle, improve the stability and effectiveness of use, reduce the wear and tear, and prolong the service life;

[0048] In assembly and use, the two ends of the square shaft are connected with the inner door square shaft connecting piece and the outer door square shaft connecting piece respectively.

[0049] In this embodiment, the outer wall of the inner door anti-lock structure and the outer door anti-lock structure is provided with a snap spring groove 6, and a snap spring body 7 is arranged in the snap spring groove; the end face of the inner door handle seat and the outer door handle seat is provided with a circular cavity 8, in assembly, the tight fit bearing is in the circular cavity, and the tight fit bearing is located on the outer side of the inner door anti-lock structure and the outer door anti-lock structure and is limited by the snap spring body. In this embodiment, the tight fit bearing and the snap spring body are connected on the anti-lock piece, through the above structure, the convenience and stability of the connection can be improved, and the disassembly and maintenance operation is facilitated.

[0050] In the embodiment, the inner door anti-lock structure comprises an anti-lock piece 141, a rotating piece 142, two anti-lock steel balls 143 and a reset torsion spring 144. In assembly, the anti-lock piece is fixed on the inner door handle body by screws, the end of the anti-lock piece is rotatably connected in the inner door handle seat and the close-fitting bearing is between the anti-lock piece and the inner door handle seat, and the reset torsion spring is at the end surface connection of the anti-lock piece and the inner door handle seat. The reset torsion spring is mainly used for resetting the inner door handle seat. The inner wall of the anti-lock piece is provided with two anti-lock clamping vertical grooves 9 at the two ends of the diameter of the anti-lock piece. The anti-lock clamping vertical grooves are used so that the anti-lock steel balls can move in the anti-lock clamping vertical grooves, the inner door handle body can be pressed down alone, the stress damage of the internal components is effectively reduced, the use stability and reliability are improved, and the service life of the overall structure is also improved.

[0051] In processing, the end surface of the inner door square shaft connecting piece is provided with a circular cavity 10, the side wall of the circular cavity is provided with two U-shaped avoiding grooves 15 at the two ends of the diameter of the circular cavity, and the anti-lock piece is sleeved on the inner door square shaft connecting piece. The width of the U-shaped avoiding groove is smaller than the diameter of the anti-lock steel ball, and the depth of the U-shaped avoiding groove is not less than the diameter of the anti-lock steel ball. Not only can the anti-lock steel ball be prevented from falling off, but also the outer side of the anti-lock steel ball can be extended or retracted into the U-shaped avoiding groove, and the use effectiveness is improved.

[0052] In actual application, the end surface of the rotating piece is provided with an anti-lock guide protrusion 16, the anti-lock steel ball is in the U-shaped avoiding groove and the inner side is positioned at the side surface of the anti-lock guide protrusion. In the embodiment, the symmetrical side surfaces of the anti-lock guide protrusion are provided with S-shaped positioning parts 18, the end of the S-shaped positioning part is integrally formed with an arc-shaped groove 19, the depth of the arc-shaped groove is smaller than the depth of the recessed area of the S-shaped positioning part, the anti-lock steel ball is in the recessed area of the S-shaped positioning part, the outer side of the anti-lock steel ball is retracted into the U-shaped avoiding groove, the anti-lock steel ball is in the arc-shaped groove, and the outer side of the anti-lock steel ball extends out of the U-shaped avoiding groove and is clamped into the anti-lock clamping vertical groove.

[0053] In use in assembly, the rotating piece rotates and drives the anti-lock guide protrusion to rotate, the anti-lock steel ball moves on the anti-lock guide protrusion and extends or retracts the outer side of the anti-lock steel ball into the U-shaped avoiding groove, the outer side of the anti-lock steel ball is clamped into the anti-lock clamping vertical groove when the anti-lock steel ball extends out of the U-shaped avoiding groove, the inner door square shaft connecting piece and the anti-lock piece are locked, at this time, the inner door handle body rotates and can drive the inner door square shaft connecting piece to rotate synchronously, the anti-lock operation is realized, the anti-lock steel ball is separated from the anti-lock clamping vertical groove when the anti-lock steel ball retracts into the U-shaped avoiding groove, the inner door square shaft connecting piece does not rotate when the inner door handle body rotates, the anti-lock operation is realized, the use stability and effectiveness are improved.

[0054] The side middle part of the reverse locking guiding convex is provided with a one-word shaped clamping groove 17; the end of the lock body push piece is clamped into the one-word shaped clamping groove.

[0055] In the actual application process, the outer side surface of the rotating piece is connected with the lock body of the outer door handle body or the reverse locking knob of the inner door handle body. The square shaft and the lock body push piece are iron structural bodies; the inner door handle body, the inner door handle seat, the inner door square shaft connecting piece, the inner door reverse locking structure, the outer door handle body, the outer door handle seat, the outer door square shaft connecting piece and the outer door reverse locking structure are zinc alloy structural bodies; the reverse locking steel ball is a 304 stainless steel material body.

[0056] The utility model has the following beneficial effects: 1. The utility model has reasonable structure, and the inner door reverse locking structure and the inner door handle seat, the outer door reverse locking structure and the inner door handle seat are all provided with tight-fitting bearings, which can not only ensure the tight-fitting stability of the connection, but also improve the rotating smoothness of the handle, reduce the shaking of the handle, improve the use stability and effectiveness, reduce the abrasion, and prolong the service life.

[0057] 2. The tight-fitting bearings are arranged on the outer side of the inner door reverse locking structure and the outer door reverse locking structure and are limited by the clamping spring body. Through the above structure, the convenience and stability of the disassembly and assembly of the tight-fitting bearings are improved, and the assembly efficiency and effectiveness are improved.

[0058] 3. The inner door reverse locking structure comprises a reverse locking piece, a rotating piece, two reverse locking steel balls and a reset torsion spring. The symmetrical side surfaces of the reverse locking guiding convex are provided with S-shaped abutting parts, and the end of the S-shaped abutting part is integrally formed with an arc-shaped groove. Through the above structure, the reverse locking operation can be effectively realized by the cooperation of the reverse locking guiding convex of the rotating piece and the reverse locking steel ball, and the use effectiveness and reliability are ensured.

[0059] 4. Two reverse locking clamping vertical grooves are arranged on the inner wall of the reverse locking piece. Through the above structure, the reverse locking operation can be realized by the cooperation of the reverse locking steel ball, the U-shaped avoiding groove and the reverse locking clamping vertical groove when the rotating piece rotates. In use, the inner door handle body or the outer door handle body can be pressed down alone, the reverse locking steel ball can move in the reverse locking clamping vertical groove, the stress damage of the internal components is effectively reduced, the use stability and reliability are improved, and the service life of the overall structure is also improved.

[0060] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description in the specification can also be directly processed according to the existing technical knowledge without any doubt. The connection mode of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt the conventional models in the existing technology, so specific descriptions are not given here.

[0061] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. The obvious changes or variations extended from the essential spirit of the present application still belong to the protection scope of the present application.

Claims

1. A door lock structure, comprising an inner door handle structure, an outer door handle structure, and a square shaft, wherein a lock body lever is disposed at the center of the square shaft, characterized in that: The inner door handle structure includes an inner door handle body and an inner door handle seat. An inner door square shaft connector is rotatably connected inside the inner door handle seat. An inner door deadbolt structure connected to the inner door square shaft connector is provided inside the inner door handle body. The outer door handle structure includes an outer door handle body and an outer door handle seat. An outer door square shaft connector is rotatably connected inside the outer door handle seat. An outer door deadbolt structure connected to the outer door square shaft connector is provided inside the outer door handle body. A tight-fitting bearing is provided between the inner door deadbolt structure and the inner door handle seat, and between the outer door deadbolt structure and the inner door handle seat; The two ends of the square shaft are respectively connected to the inner door square shaft connector and the outer door square shaft connector.

2. The door lock structure according to claim 1, characterized in that: Both the inner door deadbolt structure and the outer door deadbolt structure are provided with snap ring grooves on their outer walls, and snap ring bodies are provided in the snap ring grooves. Both the inner door handle seat and the outer door handle seat have a circular cavity on their end faces. The tight-fit bearing is located in the circular cavity and is located on the outside of the inner door deadbolt structure and the outer door deadbolt structure and is limited by the snap ring body.

3. The door lock structure according to claim 2, characterized in that: The tight-fit bearing is a cylindrical bearing.

4. The door lock structure according to claim 2, characterized in that: The inner door deadbolt structure includes a deadbolt component, a rotating component, two deadbolt balls, and a return torsion spring; The deadbolt is fixed to the inner door handle body by screws. The end of the deadbolt is rotatably connected to the inner door handle seat and a tight-fitting bearing is located between the deadbolt and the inner door handle seat. The reset torsion spring is located at the end face connection between the deadbolt and the inner door handle seat. The inner wall of the anti-locking component is provided with two anti-locking slots, which are located at both ends of the diameter of the anti-locking component. The end face of the inner door square shaft connector is provided with a circular cavity, and two U-shaped clearance grooves are provided on the side wall of the circular cavity. The two U-shaped clearance grooves are located at both ends of the diameter of the circular cavity, and the anti-locking component is sleeved on the inner door square shaft connector. The end face of the rotating component is provided with a locking guide protrusion, and the locking steel ball is located in the U-shaped clearance groove and its inner side abuts against the side of the locking guide protrusion. The rotating component rotates and drives the anti-lock guide protrusion to rotate. The anti-lock steel ball moves on the anti-lock guide protrusion and extends or retracts into the U-shaped relief groove. When the anti-lock steel ball extends out of the U-shaped relief groove, its outer side engages in the anti-lock positioning vertical groove, locking the inner door square shaft connector and the anti-lock component. At this time, the rotation of the inner door handle can drive the inner door square shaft connector to rotate synchronously. When the anti-lock steel ball retracts into the U-shaped relief groove, its outer side separates from the anti-lock positioning vertical groove. When the inner door handle rotates, the inner door square shaft connector does not rotate.

5. A door lock structure according to claim 4, characterized in that: The symmetrical sides of the anti-locking guide protrusion are provided with S-shaped abutment portions, and the ends of the S-shaped abutment portions are integrally formed with arc-shaped grooves, the depth of which is less than the depth of the recessed area of ​​the S-shaped abutment portion. The locking ball is located in the recessed area of ​​the S-shaped stop part, and the outer side of the locking ball is retracted into the U-shaped clearance groove; The anti-locking steel ball is located in the arc-shaped groove, and the outer side of the anti-locking steel ball extends out of the U-shaped clearance groove and is engaged in the anti-locking positioning vertical groove.

6. A door lock structure according to claim 5, characterized in that: A slot-shaped groove is provided in the middle of the side of the anti-locking guide protrusion; The end of the lock body lever is engaged in the I-shaped slot.

7. A door lock structure according to claim 6, characterized in that: The outer door deadbolt structure is identical to the inner door deadbolt structure.

8. A door lock structure according to claim 7, characterized in that: The outer side of the rotating component is connected to the lock body of the outer door handle or the deadbolt knob of the inner door handle.

9. A door lock structure according to claim 4, characterized in that: Both the square shaft and the lock body lever are made of iron. The inner door handle body, inner door handle seat, inner door square shaft connector, inner door deadbolt structure, outer door handle body, outer door handle seat, outer door square shaft connector, and outer door deadbolt structure are all zinc alloy structures. The locking ball is made of 304 stainless steel.

10. A door lock structure according to claim 4, characterized in that: The width of the U-shaped clearance groove is less than the diameter of the locking ball, and the depth of the U-shaped clearance groove is not less than the diameter of the locking ball.

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