CN113216742A - Circlip, transmission rod and door lock - Google Patents

Abstract

The invention discloses a clamp spring which comprises a spiral section, wherein two ends of the spiral section transversely extend towards the same side to form two extension sections, the two extension sections are turned back along the reverse direction of the same side to form a turn-back section, the tail section of the turn-back section is bent inwards to form an insertion section, and the insertion section is partially positioned in the circular outline range of the spiral section. The invention discloses a transmission rod, wherein the outer side of the head end of the transmission rod is provided with at least two positioning notches, and the edge of the head end of the transmission rod is provided with a rounding/chamfering. The invention discloses a door lock, which comprises a rear panel, a knob, a clamp spring and a transmission rod, wherein the transmission rod with corresponding length can be flexibly selected according to the thickness of a door panel of a site unit, and the operation of subsequent cutting of the transmission rod by an installation master is omitted, so that the installation efficiency is improved.

Description

Circlip, transmission rod and door lock

Technical Field

The invention relates to a clamp spring, a transmission rod and a door lock.

Background

Referring to fig. 1 to 3, the conventional smart lock generally employs a cotter pin 5 to connect a transmission rod 4 and a knob 2. This has the advantage that the transmission rod 4 can be pivoted about the axis of the passage section of the cotter pin 5. The fixed back shroud that is stamped in the back of intelligence lock (not shown), back shroud usually can set up in the swing position corresponding department of transfer line 4 and keep away the empty vertical slot to supply transfer line 4 to wind the swing of split pin 5 and pass, thereby accomodate transfer line 4 inside the intelligence lock casing, thereby make things convenient for the packing.

The tail end 21 of the knob 2 is arranged in the rear panel 1, and the rear cover plate is fixedly covered on the back surface of the intelligent lock when leaving the factory, and if an installation master or a user opens the rear cover plate privately, the warranty benefit is possibly influenced. Thus, the prior art cotter 5 can only be assembled during production and cannot be retrofitted at a later stage.

For some building intelligent lock installation items with different door thicknesses, the thicknesses of the door panels of all units are different, and the length of the transmission rod 4 needs to be matched with the thickness of the door panel, so that the transmission rod 4 is not convenient to install in advance before the thicknesses of the door panels installed on all intelligent locks are unknown, otherwise, the transmission rod 4 needs to be cut subsequently, and the lockset installation work of the building intelligent lock installation items is difficult to develop.

Disclosure of Invention

In order to overcome the defects in the prior art, one of the purposes of the invention is to provide a clamp spring, which can improve the installation efficiency of a lock. The second purpose of the invention is to provide a transmission rod which can improve the installation efficiency of the lock. The invention also aims to provide a door lock, which can improve the installation efficiency of a lockset.

The purpose of the invention is realized by adopting the following technical scheme:

the clamp spring comprises a spiral section, wherein two ends of the spiral section transversely extend towards the same side to form two extension sections, the extension sections are arranged along the reverse turning-back direction of the same side to form a turning-back section, the tail section of the turning-back section is bent inwards to form an insertion section, and the local part of the insertion section is located in the circular outline range of the spiral section.

Specifically, the number of turns of the spiral section is 1.2-1.8.

In particular, the insertion section is at the same end of the helical section in the axial direction of the central shaft.

Specifically, the extension section and the return section are axially juxtaposed along the central axis of the spiral section.

In particular, the two insertion sections are collinear, both being directed towards the central axis of the helical section.

Specifically, the ratio of the length of the insertion section to the diameter of the circular profile corresponding to the spiral section is 0.2-0.5.

The transmission rod, the head end outside of transmission rod is equipped with two at least location breachs, the head end edge of transmission rod is equipped with radius/chamfer.

Specifically, the transfer line is rectangular shape lamellar body, the head end of transfer line is equipped with two lateral extension's evagination, the side edge of evagination is equipped with the location breach.

In particular, the end edges of the male part are provided with said rounding/chamfering.

The lock, including rear panel, knob the jump ring with the transfer line, the knob is rotationally worn to locate the rear panel, the tail end of knob is in within the rear panel, the lateral wall of tail end is equipped with two patchholes, the spiral section cover is located the tail end, two the insertion section insert respectively in the patchhole, the terminal surface of tail end is equipped with keeps away the dead slot, keep away the lateral wall that the dead slot runs through the tail end, the head end of transfer line inserts keep away the dead slot, the spiral section is blocking two location breach department.

Compared with the prior art, the invention has the beneficial effects that:

for the building intelligent lock installation items with different door thicknesses, the transmission rod does not need to be installed in advance before the thickness of the door plate installed by each intelligent lock is unknown, the transmission rod with the corresponding length can be flexibly selected according to the thickness of the door plate of a site unit, and the subsequent operation of cutting the transmission rod by an installation master is omitted, so that the installation efficiency is improved. In addition, after the transmission rod with the proper length is selected, the process of installing the transmission rod to the knob is very simple and convenient, the rear cover plate does not need to be disassembled, and therefore the warranty benefit of a user on the lockset cannot be influenced.

Drawings

FIG. 1 is a partial view of a prior art door lock;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial exploded view of a prior art door lock;

FIG. 4 is a partial view of the door lock of the present invention;

FIG. 5 is an enlarged partial view taken at B in FIG. 4;

FIG. 6 is another partial view of the door lock of the present invention;

FIG. 7 is a partial exploded view of the door lock of the present invention;

fig. 8 is a perspective view of the circlip of the present invention.

In the figure: 1. a rear panel; 2. a knob; 21. a tail end; 22. an empty avoiding groove; 23. an insertion hole; 3. a clamp spring; 31. a helical section; 32. an extension section; 33. a turning section; 34. an insertion section; 4. a transmission rod; 41. a head end; 42. positioning the notch; 43. chamfering; 44. an outer convex portion; 5. and a cotter pin.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Referring to fig. 4 to 8, the door lock comprises a rear panel 1, a knob 2, a clamp spring 3 and a transmission rod 4. The knob 2 is rotatably disposed through the rear panel 1, and a tail end 21 of the knob 2 is disposed inside the rear panel 1.

Referring to fig. 8, the circlip 3 includes a spiral section 31, and two ends of the spiral section 31 extend transversely toward the same side to form two extending sections 32. The two extending sections 32 are folded back in opposite directions on the same side, forming a folded-back section 33. The end of the return section 33 is bent inwardly to form the insertion section 34. The insertion section 34 is partially within the circular contour of the helical section 31.

Specifically, the number of turns of the spiral section 31 is 1.2-1.8 turns, and in the present embodiment, the number of turns of the spiral section 31 is 1.5 turns.

Specifically, the insertion sections 34 are located at the same end of the spiral section 31 in the axial direction of the central shaft (both at the lower end as in fig. 8).

Specifically, the extension section 32 and the turn-back section 33 are axially juxtaposed along the central axis of the spiral section 31.

Specifically, the two insertion sections 34 are collinear, with both insertion sections 34 facing the central axis of the helical section 31.

Specifically, the ratio of the length of the insertion section 34 to the diameter of the circular profile corresponding to the spiral section 31 is 0.2-0.5, and in the present embodiment, the ratio of the length of the insertion section 34 to the diameter of the circular profile corresponding to the spiral section 31 is 0.3.

Referring to fig. 7, at least two positioning notches 42 are formed outside the head end 41 of the driving rod 4, and the edge of the head end 41 of the driving rod 4 is rounded/chamfered 43. In the present embodiment, the edge of the head end 41 of the transmission rod 4 is provided with a chamfer 43.

Specifically, the transmission rod 4 is a strip-shaped sheet, the head end 41 of the transmission rod 4 is provided with two laterally extending protrusions 44, and the side edges of the protrusions 44 are provided with positioning notches 42.

Specifically, the end edge of the outer protrusion 44 is provided with a chamfer 43.

After the lockset is assembled, the connection relationship of the knob 2, the clamp spring 3 and the transmission rod 4 is as follows:

referring to fig. 5 to 7, the sidewall of the tail end 21 is provided with two insertion holes 23, the spiral section 31 is sleeved on the tail end 21, and the two insertion sections 34 are respectively inserted into the insertion holes 23, so as to connect the snap spring 3 and the knob 2. The end face of the tail end 21 of the knob 2 is provided with a clearance groove 22, and the clearance groove 22 penetrates through the side wall of the tail end 21. The head end 41 of the transmission rod 4 is inserted into the clearance groove 22, and the spiral section 31 is clamped at the two positioning notches 42, so that the connection between the transmission rod 4 and the clamp spring 3 is realized.

The installation sequence of the knob 2, the clamp spring 3 and the transmission rod 4 is as follows (the assembly process of the rest parts is not described here):

before leaving the factory, the knob 2 is mounted on the rear panel 1, so that the knob 2 and the rear panel 1 are rotatably connected. Then, referring to fig. 8, the end sections of the two extending sections 32 (the returning sections 33) are simultaneously pressed inward (the circlip 3 is elastically deformed and stores elastic potential energy in the process), so that the two extending sections 32 (the returning sections 33) both swing inward by a certain angle, and the inserting section 34 is driven to swing in a direction away from the central axis of the spiral section 31, so that the inserting section 34 does not occupy the middle position of the circular contour range of the spiral section 31. At this time, the spiral section 31 may be sleeved on the tail end 21 of the knob 2 (see fig. 6 and 7), until the insertion section 34 and the insertion hole 23 correspond to each other along the axial direction of the tail end 21, the two extension sections 32 (the folded-back section 33) are loosened, the extension sections 32 (the folded-back section 33) swing outward and return under the elastic restoring force, so as to drive the insertion section 34 to swing toward the direction close to the central axis of the spiral section 31, and insert into the insertion hole 23 on the corresponding side (see fig. 5 and 6), so that the connection between the knob 2 and the snap spring 3 is achieved.

For the installation items of the intelligent building lock with different door thicknesses, the thickness of the door plate to be installed subsequently by the lock is not clear, so that after the connection between the knob 2 and the clamp spring 3 is completed, the transmission rod 4 is not installed temporarily, but a rear cover plate (not shown in the figure) is installed on the back surface of the lock, and then the intelligent building lock leaves the factory. After leaving the factory, the back cover plate generally does not allow a user or an installer to detach the back cover plate privately. The rear cover plate is provided with clearance holes (not shown) for the transmission rod 4 to be inserted.

After the outgoing lock is delivered to the unit to be installed, an installer knows the thickness of the door panel of the unit, selects the transmission rod 4 matched with the thickness of the door panel, and inserts the head end 41 of the transmission rod 4 into the lock through a clearance hole (not shown) of the rear cover plate. In this process, the head 41 of the transmission rod 4 is aligned with the clearance groove 22 of the knob 2, and the two chamfers 43 of the head 41 are respectively abutted against two positions of the spiral section 31 (see fig. 7). Since the circlip 3 and the knob 2 are fixed to each other at this time, only by pushing the transmission rod 4 towards the clearance groove 22 with force, the two chamfers 43 generate two outward reverse thrusts to the two positions of the spiral section 31, so as to elongate (generate elastic deformation) the spiral section 31 along the extending direction of the clearance groove 22, and form a shape similar to an ellipse. As the spiral section 31 is elongated along the extending direction of the clearance groove 22, the two external protrusions 44 are partially squeezed into the spiral section 31 and tightly attached to the inner wall of the spiral section 31, and as the transmission rod 4 is continuously inserted into the positioning notches 42 to reach the corresponding positions of the spiral section 31, the spiral section 31 is reset under the action of the elastic restoring force, the spiral section 31 returns to an approximately circular shape, so that the spiral section 31 is clamped into the two positioning notches 42 (as shown in fig. 5 and 6), the connection between the transmission rod 4 and the clamp spring 3 is realized, and the installation of the transmission rod 4 is completed.

Referring to fig. 6, after the screw section 31 is snapped into the two positioning notches 42, since the opening width of the positioning notches 42 is matched with that of the screw section 31, the two snapping positions of the screw section 31 respectively abut against the inner side walls of the two positioning notches 42, so that the transmission rod 4 is kept in a horizontal state, the transmission rod 4 is ensured to be perpendicular to the back cover plate of the door lock, and is not inclined, thereby facilitating alignment with the hole of the lock body (not shown) during lock assembly.

So, to the building intelligent lock installation project of door thickness difference, before the door plant thickness that each intelligent lock of unknown was installed, transfer line 4 need not to install in advance, can be according to the nimble transfer line 4 of selecting corresponding length of site unit's door plant thickness size, removes the operation that the master of installation follow-up tailors transfer line 4 from to improve the installation effectiveness. In addition, after the transmission rod 4 with the proper length is selected, the process of installing the transmission rod 4 to the knob 2 is very simple and convenient, a rear cover plate does not need to be disassembled, and therefore the warranty of a user for the lockset cannot be influenced.

The number of turns of the spiral section 31 is 1.2-1.8, and the spiral section 31 is easily deformed, so that the two protrusions 44 are more easily squeezed into the spiral section 31.

The insertion sections 34 are located at the same end of the spiral section 31 in the axial direction of the central axis (both at the lower end as shown in fig. 8), so that the insertion sections 34 and the insertion holes 23 correspond to each other.

The two insertion sections 34 are collinear, and the two insertion sections 34 are both oriented to the central axis of the spiral section 31, so that the two insertion sections 34 are arranged along a certain diameter of the circular contour of the spiral section 31 to correspond to the two insertion holes 23.

The ratio of the length of the insertion section 34 to the diameter of the circular profile corresponding to the spiral section 31 is 0.2-0.5, so that the length of the insertion section 34 is moderate, and the insertion section 34 can be ensured to have enough connection strength after being inserted into the insertion hole 23, and the two extension sections 32 (the return sections 33) can be swung to the middle position without swinging inwards by too large an angle in the installation process, so that the insertion section 34 can be swung to the middle position without occupying the range of the circular profile of the spiral section 31.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (10)

1. Jump ring, its characterized in that: including the spiral section, the both ends of spiral section are transversely extended towards same one side, form two extension sections, two the extension section is followed turn back with the reverse of one side, form the section of turning back, the end section of the section of turning back is bent inwards, forms the insertion section, the insertion section part is in the circular profile within range of spiral section.

2. The circlip of claim 1, wherein: the number of turns of the spiral section is 1.2-1.8.

3. The circlip of claim 1, wherein: the insertion section is located at the same end of the spiral section along the axial direction of the central shaft.

4. The circlip of claim 1, wherein: the extension section and the return section are axially parallel to each other along the central axis of the spiral section.

5. The circlip of claim 1, wherein: the two insertion sections are collinear, and both insertion sections face to the central axis of the spiral section.

6. The circlip of claim 5, wherein: the ratio of the length of the insertion section to the diameter of the circular profile corresponding to the spiral section is 0.2-0.5.

7. The transfer line, its characterized in that: the outer side of the head end of the transmission rod is provided with at least two positioning notches, and the edge of the head end of the transmission rod is provided with a rounding/chamfering.

8. The transfer bar of claim 7 wherein: the transmission rod is a strip-shaped sheet body, two transversely extending outer convex parts are arranged at the head end of the transmission rod, and the side edges of the outer convex parts are provided with the positioning notches.

9. The transfer bar of claim 8 wherein: the end edges of the outer protrusions are provided with the rounding/chamfering.

10. Door lock, its characterized in that: the rotary knob is rotatably arranged on the rear panel in a penetrating mode, the tail end of the rotary knob is located inside the rear panel, two insertion holes are formed in the side wall of the tail end, the spiral section is sleeved on the tail end, the two insertion sections are respectively inserted into the insertion holes, a clearance groove is formed in the end face of the tail end and penetrates through the side wall of the tail end, the head end of the transmission rod is inserted into the clearance groove, and the spiral section clamps the two positioning notches.

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