CN210918541U - Knob structure and door lock - Google Patents

Abstract

The utility model relates to a knob structure and a door lock, wherein the knob structure comprises a shell, a knob, a connecting piece and a pin shaft, the pin shaft is rotatably arranged in a hole of the shell, and the first end and the second end of the pin shaft are respectively fixedly connected with the connecting piece and the knob, so that the connecting piece can be driven to rotate when the knob is rotated; the first end of the pin shaft is sleeved with an elastic pad, the end face of the elastic pad, which is far away from the knob, extends out of the first end of the pin shaft, the connecting piece comprises a connecting shaft and a fastening piece on the connecting shaft, the connecting shaft is sleeved with at least two first gaskets, and when acting force is applied to the fastening piece, the elastic pad is compressed so that the end faces, close to the knob, of the first gaskets are tightly attached to the end face of the first end of the pin shaft; at least two second gaskets are arranged between the second end of the pin shaft and the shell. This application is guaranteeing that axial atress is stable, the cooperation is accurate simultaneously, and the knob can also be more relaxed rotatory.

Description

Knob structure and door lock

Technical Field

The utility model relates to an intelligence lock technical field relates to a knob structure and lock especially.

Background

The intelligent door lock is more and more popular, and the electronic door lock is used as a carrier of the intelligent door lock, and the unlocking mode of the electronic door lock is various, full-automatic and manual. However, no matter which kind of intelligent door lock, most of the internal locks of the intelligent door lock are provided with the back locking knobs, and a user can directly lock the door in a room, so that the door can not be normally opened outside. However, the back locking knob of the existing intelligent door lock has the shaking phenomenon of different degrees no matter the back locking knob with the pre-tightened spring or the back locking knob axially fixed by the clamp spring, and when the knob is rotated, certain damping feeling is generated, so that the use experience is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a knob structure and lock for solve above-mentioned problem.

In a first aspect, the present application provides a knob structure, comprising:

a housing having an aperture;

the knob is arranged on one side of the shell and corresponds to the position of the opening;

the connecting piece is arranged on one side of the shell, which is far away from the knob, and corresponds to the position of the opening;

the pin shaft is rotatably arranged in the opening in a penetrating mode, two ends of the pin shaft extend out of the opening, a first end of the pin shaft is fixedly connected with the connecting piece, and a second end of the pin shaft is fixedly connected with the knob, so that the connecting piece can be driven to rotate when the knob is rotated;

wherein the first end of the pin shaft is sleeved with an elastic pad, the elastic pad is away from the end surface of the knob and extends out of the first end of the pin shaft,

the connecting piece comprises a connecting shaft and a fastening piece sleeved on the connecting shaft, at least two first gaskets are sleeved at the position, between the elastic pad and the fastening piece, of the connecting shaft, a gap is reserved between the end face, close to the knob, of the first gasket and the end face of the first end of the pin shaft, and when acting force is applied to the fastening piece, the elastic pad is compressed to enable the end face, close to the knob, of the first gasket to be tightly attached to the end face of the first end of the pin shaft;

the second end of the pin shaft is provided with a convex block, and at least two second gaskets are arranged between the convex block and the side wall of the shell.

In one embodiment, the number of the first gaskets is two, one of the first gaskets is a flange gasket sleeved on the connecting piece, and the other one of the first gaskets is a flat gasket arranged between the elastic pad and the flange gasket.

In one embodiment, the flange gasket is a copper gasket and the flat gasket is a copper flat gasket.

In one embodiment, the resilient pad is a rubber pad.

In one embodiment, the number of the second pads is two, and both the second pads are copper flat pads.

In one embodiment, the outer surface of the connecting shaft has a first thread and correspondingly the inner surface of the fastener has a second thread that mates with the first thread.

In one embodiment, the outer radius of the fastener is greater than the outer radius of the second end of the pin.

In a second aspect, the present application provides a door lock including the knob structure.

In one embodiment, the door lock includes:

a lock body;

the transmission shaft is fixedly connected with the lock body and the connecting piece, and the rotating center line of the transmission shaft is superposed with the axis line of the opening, so that when the knob is rotated, the transmission shaft can drive the lock body to rotate, and the lock body is unlocked or unlocked.

Compared with the prior art, the utility model has the advantages of:

this application is through establishing the cushion that extends the first end of round pin axle at round pin epaxial cover, and set up the gasket of two at least laminating between cushion and fastener, make when applying the effort to the fastener, the cushion is compressed, thereby make the terminal surface that first gasket is close to the knob can closely laminate with the first end of round pin axle, and then make first gasket and second gasket receive axial pressure, furthermore, this application is through choosing the little copper gasket of frictional force for use, make when guaranteeing that the axial atress is stable, the cooperation is accurate, the knob can also be more relaxed rotatory. The technical problem of utilize the knob structure of spring or jump ring to appear rocking easily among the prior art and the damping sense occasionally of rotatory knob is solved.

Drawings

The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings.

FIG. 1 is a schematic view of a knob structure according to the present application (fasteners not shown).

Fig. 2 is an enlarged schematic view of a region a in fig. 1.

FIG. 3 is a schematic view of a knob structure according to the present application (showing a fastener).

Fig. 4 is an enlarged schematic view of the region a in fig. 3.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 shows a knob structure according to the present application, comprising a housing 1, a knob 2, a pin 3 and a connecting member 4.

The shell 1 is provided with a hole, the pin shaft 3 is rotatably arranged in the hole in a penetrating mode along the axial lead direction of the hole, two ends of the pin shaft 3 extend out of the hole, the first end of the pin shaft is fixedly connected with the knob 2, and the second end of the pin shaft is fixedly connected with the connecting piece 4, so that the connecting piece 4 can be driven to rotate when the knob 2 is rotated. It can be understood that the pin 3 and the connecting member 4 may be an integral structure, as long as the pin 3 can drive the connecting member 4 to rotate when the knob 2 is rotated.

Wherein, the first pot head of round pin axle 3 is equipped with cushion 5, and cushion 5 deviates from the outside that the terminal surface of knob 2 extended the first end of round pin axle 3.

Referring to fig. 2 and 4, the connecting member 4 includes a connecting shaft 41 and a fastening member 42 sleeved on the connecting shaft 41, at least two first spacers 6 are sleeved on the connecting shaft 41 at a position between the elastic pad 5 and the fastening member 42, and a gap is formed between an end surface 600 of the first spacer 6 close to the knob 2 and an end surface 300 of the first end of the pin shaft 3, and the width of the gap is indicated by L1 in fig. 2. When a force is applied to the fastening member 42, the elastic pad 5 is compressed so that the end surface 600 of the first spacer adjacent to the knob 2 is closely attached to the end surface 300 of the first end of the pin shaft 3, the gap is narrowed, the width of the gap is indicated by L2 in fig. 4, and at this time, L2 is 0. In this embodiment, the elastic pad 5 is a rubber pad with a low elastic modulus.

It should be noted that, in the present application, the first end refers to an end far away from the knob 2, and the second end refers to an end close to the knob 2.

In the embodiment shown in fig. 1, the number of first pads 6 is two. In particular, reference is made to fig. 2, wherein one is a flange gasket 61 fitted over the connecting member 4, and the other is a flat gasket 62 disposed between the rubber pad 5 and the flange gasket 61. Preferably, the flange gasket 61 is a copper gasket and the flat gasket 62 is a copper flat gasket. Because the friction coefficient between copper and copper is only 0.1, the friction force between copper and copper is small, and when the knob is rotated, a user can easily overcome the friction force during relative rotation between copper gaskets by applying a rotating force.

It is understood that the flange gasket 61 may also be a nylon flange gasket, and the flat gasket 62 may also be a nylon flat gasket, as long as the material has a low friction coefficient, and the application is not limited thereto.

The second end of the pin shaft 3 is provided with a convex block 31, and at least two second gaskets 7 are arranged between the convex block 31 and the inner wall of the shell 1. In the embodiment shown in fig. 1, the number of the second pads 7 is two, and both of the second pads 7 are copper flat pads. Similarly, the two second pads 7 may also be nylon flat pads, as long as the friction coefficient is small, and the application is not limited thereto.

It can be easily understood that, the knob structure of this application, when applying the effort to fastener 42, the effort transmits cushion 5 through first gasket 6, thereby cushion 5 is compressed and makes the terminal surface 600 of first gasket 6 closely laminate with the terminal surface 300 of round pin axle 3 to exert an axial pressure to first gasket 6 and second gasket 7, again because frictional force between the copper gasket is very little, thereby make when guaranteeing that the copper gasket does not rock can easily rotate again.

It can be understood that if the resistance when the knob is rotated is desired to be changed, the material of the elastic pad can be changed, and the compression amount of the elastic pad when the fastening force is applied is changed by changing the elastic modulus, so that the axial pressure applied to the first gasket and the second gasket is changed, and the resistance when the knob is rotated is further changed. In addition, the material of the elastic pad can be kept unchanged, the thickness of the elastic pad is changed, the elastic modulus is unchanged, the compression amount of the elastic pad is different when fastening force is applied to the elastic pad in different thicknesses, and therefore the axial pressure applied to the first gasket and the second gasket is changed, and the resistance when the knob is rotated is further changed.

In a specific embodiment, the outer surface of the coupling shaft 41 has a first thread, and correspondingly, the inner surface of the fastener 42 has a second thread that mates with the first thread.

In the embodiment shown in fig. 1-4, the outer radius of the fastener 42 is greater than the outer radius of the second end of the pin 3. When a force is applied to the fastening member 42, the force is more uniformly distributed on the first gasket 6 and is then transmitted to the rubber pad 5 through the first gasket 6.

Referring again to fig. 1 and 2, there is shown a door lock according to the present application, including the knob structure described above, a lock body 8 and a drive shaft 9. The transmission shaft 9 is fixedly connected with the lock body 8 and the connecting piece 4, and the rotating center line of the transmission shaft 9 is superposed with the axis line of the opening, so that when the knob 2 is rotated, the transmission shaft 9 can drive the lock body 8 to rotate, and the lock body 8 is unlocked or unlocked.

It will be appreciated that the knob structure of the present application may be applied to a radio for adjusting volume, changing channels, etc., in addition to the door lock described. It can also be used in automobiles for adjusting audio equipment, etc.

To sum up, this application establishes the cushion that extends the first end of round pin axle through the cover on round pin axle to set up the gasket of two at least laminating between cushion and fastener, make when applying the effort to the fastener, the cushion is compressed, thereby make the terminal surface that first gasket is close to the knob can closely laminate with the first end of round pin axle, and then make first gasket and second gasket receive axial pressure, in addition, this application is through choosing the little copper gasket of frictional force for use, make when guaranteeing that the axial atress is stable, the cooperation is accurate, the knob can also be more relaxed rotatory. The technical problem of utilize the knob structure of spring or jump ring to appear rocking easily among the prior art and the damping sense occasionally of rotatory knob is solved.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (9)

1. A knob structure, comprising:

a housing having an aperture;

the knob is arranged on one side of the shell and corresponds to the position of the opening;

the connecting piece is arranged on one side of the shell, which is far away from the knob, and corresponds to the position of the opening;

the pin shaft is rotatably arranged in the opening in a penetrating mode, two ends of the pin shaft extend out of the opening, a first end of the pin shaft is fixedly connected with the connecting piece, and a second end of the pin shaft is fixedly connected with the knob, so that the connecting piece can be driven to rotate when the knob is rotated;

wherein the first end of the pin shaft is sleeved with an elastic pad, the elastic pad is away from the end surface of the knob and extends out of the first end of the pin shaft,

the connecting piece comprises a connecting shaft and a fastening piece sleeved on the connecting shaft, at least two first gaskets are sleeved at the position, between the elastic pad and the fastening piece, of the connecting shaft, a gap is reserved between the end face, close to the knob, of the first gasket and the end face of the first end of the pin shaft, and when acting force is applied to the fastening piece, the elastic pad is compressed to enable the end face, close to the knob, of the first gasket to be tightly attached to the end face of the first end of the pin shaft;

the second end of the pin shaft is provided with a convex block, and at least two second gaskets are arranged between the convex block and the side wall of the shell.

2. The knob structure according to claim 1, wherein the number of the first spacers is two, one of which is a flange spacer fitted over the connecting member, and the other of which is a flat spacer disposed between the elastic pad and the flange spacer.

3. The knob structure according to claim 2, wherein the flange washer is a copper washer and the flat washer is a copper flat washer.

4. The knob structure according to claim 1, wherein the elastic pad is a rubber pad.

5. The knob structure according to claim 1, wherein the number of the second spacers is two, and both of the second spacers are copper flat spacers.

6. The knob structure according to claim 1, wherein an outer surface of the coupling shaft has a first thread, and correspondingly, an inner surface of the fastener has a second thread to be engaged with the first thread.

7. The knob structure according to claim 6, wherein an outer radius of the fastener is greater than an outer radius of the second end of the pin.

8. A door lock characterized by comprising a knob structure according to any one of claims 1 to 7.

9. The door lock according to claim 8, comprising:

a lock body;

the transmission shaft is fixedly connected with the lock body and the connecting piece, and the rotating center line of the transmission shaft is superposed with the axis line of the opening, so that when the knob is rotated, the transmission shaft can drive the lock body to rotate, and the lock body is unlocked or unlocked.

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