CN216976848U - Rotary knob - Google Patents

Abstract

The utility model relates to the technical field of knobs, and discloses a knob, which comprises: a screw cap assembly; the shell is fixedly connected with the functional rod piece; the deflector rod frame, the turncap component and the deflector rod frame are fixedly connected; the connecting cylinder is connected with the poking rod frame in a sliding way and is provided with a transverse sliding chute; the first elastic piece is clamped between the deflector rod frame and the connecting cylinder body, and the deflector rod frame can drive the connecting cylinder body to synchronously move through the first elastic piece; the peach-shaped piece is connected with the connecting cylinder body in a sliding manner and is provided with a sliding chute; one end of the second elastic piece is abutted against the connecting cylinder body, and the other end of the second elastic piece is abutted against the peach-shaped piece; block the subassembly, be located peach type spare on, block that the subassembly can stretch into the sliding chute and can stretch into the first preset position of sliding chute. The knob disclosed by the utility model can simultaneously have an ignition function, a nut component hiding function and a nut component resetting function.

Description

Rotary knob

Technical Field

The utility model relates to the technical field of knobs, in particular to a knob.

Background

The existing button only has one function by pressing, for example, a knob assembled on a functional rod piece of a gas stove can only ignite by pressing, the gas output of combustible gas is controlled by rotating when the button is not pressed, the purpose of adjusting the firepower is achieved, and the existing knob does not have the function of being hidden in a table top when the button is not used.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a knob that can be pressed to ignite and can also be pressed to hide a knob assembly in a housing.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a knob, comprising: a screw cap assembly; the shell is fixedly connected with the functional rod piece; the rotating cap assembly is fixedly connected with the shifting rod frame; the connecting cylinder body is slidably connected with the poking rod frame, and a transverse sliding groove is formed in the connecting cylinder body; the first elastic piece is clamped between the poking rod frame and the connecting cylinder body, and the poking rod frame can drive the connecting cylinder body to synchronously move through the first elastic piece; the peach-shaped piece is connected with the connecting cylinder body in a sliding mode, and a sliding chute is formed in the peach-shaped piece; one end of the second elastic piece is abutted against the connecting cylinder body, and the other end of the second elastic piece is abutted against the peach-shaped piece; the blocking assembly is arranged on the peach-shaped piece and can extend into a first preset position of the sliding chute; pressing the screwing cap assembly, wherein the screwing cap assembly drives the poking rod frame, the connecting cylinder and the peach-shaped part to move relative to the shell so as to enable the peach-shaped part to be connected with the function rod part, the first elastic part is compressed, the second elastic part is at most partially compressed, and the transverse sliding groove is fixed at the first preset position; after the peach-shaped piece is connected with the functional rod piece, the rotating cap component is pressed to enable the rotating cap component to drive the shifting rod frame to push the blocking component to be separated from the sliding chute and enable the connecting cylinder body to move relative to the peach-shaped piece, the second elastic piece is compressed, the transverse chute moves relative to the peach-shaped piece and is positioned at the bottom of the sliding chute, and the rotating cap component is hidden in the shell; pressing the cap screwing assembly to enable the transverse sliding groove to slide to the top of the sliding groove from the bottom of the sliding groove, the first elastic piece and the second elastic piece reset, and the cap screwing assembly resets.

Preferably, the first elastic member has a first elastic coefficient when the deformation amount is 0 to s1, a second elastic coefficient when the deformation amount is s1 to s2, and a third elastic coefficient when the deformation amount is greater than s2, and the second elastic coefficient is smaller than the smaller of the first elastic coefficient and the third elastic coefficient, and the first elastic member has a deformation amount smaller than s1 when the knob is connected to the function lever, and has a deformation amount larger than s2 when the cap screwing assembly is hidden in the housing.

Preferably, the second elastic member has a fourth elastic coefficient, and the fourth elastic coefficient is greater than the larger one of the first elastic coefficient and the third elastic coefficient, or is smaller than the smaller one of the first elastic coefficient and the third elastic coefficient.

As a preferable mode of the knob, the first elastic member is a disc spring, the second elastic member is a spring, and the fourth elastic modulus of the spring is smaller than the smaller one of the first elastic modulus and the third elastic modulus.

As a preferred scheme of knob, block the subassembly including block piece and third elastic component, be equipped with on the peach type spare with the spacing spout of slip spout intercommunication, block the piece and locate on the spacing spout and can stretch into the slip spout, the one end butt of third elastic component in the internal face of peach type spare, the other end butt in block the piece, the central axis direction of third elastic component with the central axis direction of connecting the barrel is perpendicular.

As a preferred scheme of the knob, the shift lever frame comprises a shift lever frame body and a guide rod, the guide rod is slidably connected to the connecting cylinder, a first inclined surface is arranged on the guide rod, and the first inclined surface can be matched with the blocking block to enable the blocking block to be separated from the sliding chute.

As a preferred scheme of a knob, the knob further includes a sliding part, one end of the sliding part is slidably connected in the transverse sliding groove, the other end of the sliding part is slidably connected in the sliding groove, when the cap screwing component is pressed, the sliding part can be blocked by the blocking component, and when the cap screwing component is hidden in the shell, the poking rod frame can push the blocking component to be separated from the sliding groove, so that the sliding part slides along the sliding groove.

As a preferred scheme of a knob, a groove is arranged on one of the shell and the cap screwing component, a protrusion arranged corresponding to the groove is arranged on the other one of the shell and the cap screwing component, the protrusion is positioned in the groove when the cap screwing component is hidden in the shell, and the protrusion is mutually separated from the groove when the sliding component is positioned at the top of the sliding chute.

As a preferred scheme of a knob, the sliding chute includes first sliding chute, spacing sliding chute and the second sliding chute that communicates in proper order, horizontal spout with spacing sliding chute corresponds the setting, it can stretch into to block the subassembly in the first sliding chute, the slider can be followed first sliding chute removes to in the spacing sliding chute in order to reach the bottom of sliding chute, the slider can also be followed spacing sliding chute follows the second sliding chute returns to the top of sliding chute.

As a preferred scheme of a knob, be equipped with the erection column in the connecting cylinder body, peach type spare is close to the one end of unscrewing the cap subassembly is equipped with first mounting hole, the erection column with first mounting hole coaxial setting, the pot head of second elastic component is located on the erection column, at least part the second elastic component is located in the first mounting hole and the butt in peach type spare.

As a preferred scheme of the knob, a limiting buckle is arranged on the shifting rod frame, a limiting hole is formed in the connecting cylinder body, the limiting buckle can be installed in the limiting hole, and the limiting buckle can be separated from the limiting hole to move towards one side close to the functional rod piece.

The utility model has the beneficial effects that: the knob disclosed by the utility model can simultaneously have an ignition function, a cap screwing component hiding function and a cap screwing component resetting function, specifically, when the cap screwing component is pressed, the first elastic piece is compressed, the second elastic piece is at most partially compressed, the transverse sliding groove is positioned at a first preset position, the knob is connected with the functional rod piece, and the knob has an ignition function; the first elastic piece is compressed, the shifting rod frame moves relative to the peach-shaped piece, the shifting rod frame pushes the blocking assembly to be separated from the sliding chute, the transverse chute moves relative to the peach-shaped piece, the first elastic piece and the second elastic piece are simultaneously compressed until the knob is pressed to the lowest position, at the moment, the knob is loosened, the transverse chute is positioned at the bottom of the sliding chute, and the nut component is hidden in the shell, so that the knob has a knob component hiding function; when the screwing cap component needs to be popped up, the screwing cap component is pressed, and under the elastic action of the second elastic piece, the screwing cap component pops up the shell, so that the screwing cap component of the knob is reset.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is an exploded view of a knob according to an embodiment of the present invention;

FIG. 2 is a schematic view of a housing of a rotary knob provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of the inner barrel of the knob according to an embodiment of the present invention;

FIG. 4 is a schematic view of a shifter yoke for a knob according to an embodiment of the present invention;

FIG. 5 is a schematic view of a lever arm of the knob of the present invention in another orientation;

FIG. 6 is a schematic view of a connection cylinder of a knob according to an embodiment of the present invention;

FIG. 7 is an assembly view of the peach-shaped member, the slider member and the stop block of the knob according to the preferred embodiment of the present invention;

fig. 8 is an exploded view of the structure shown in fig. 7.

In the figure:

1. a screw cap assembly; 11. screwing the cap body; 12. screwing the cap inner cylinder; 1201. a groove; 1202. a matching guide groove;

2. a housing; 21. a protrusion;

3. a poker bar frame; 31. a deflector rod frame body; 311. a limiting buckle; 312. a deflector rod guide post; 3121. a first guide rib; 313. a second guide rib; 32. a guide bar; 321. a first inclined plane;

4. connecting the cylinder body; 401. a transverse chute; 402. a limiting hole; 403. a connecting cavity; 404. a first guide groove; 405. a second guide groove; 41. mounting a column; 42. connecting the guide post;

5. a first elastic member;

6. a second elastic member;

7. a slider;

8. a peach-shaped piece; 801. a sliding chute; 8011. a first sliding chute; 8012. a limiting sliding chute; 8013. a second sliding chute; 802. a limiting chute; 803. a first mounting hole;

91. a stop block.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a knob, as shown in fig. 1 to 8, the knob includes a screw cap assembly 1, a housing 2, a lever rack 3, a connection cylinder 4, a first elastic member 5, a peach-shaped member 8, a blocking assembly and a second elastic member 6, the housing 2 is fixedly connected with a function rod, the screw cap assembly 1 is fixedly connected with the lever rack 3, the connection cylinder 4 is slidably connected with the lever rack 3, a transverse chute 401 is arranged on the connection cylinder 4, the first elastic member 5 is clamped between the lever rack 3 and the connection cylinder 4, and the lever rack 3 can drive the connection cylinder 4 to move synchronously through the first elastic member 5. The peach-shaped part 8 is connected with the connecting cylinder 4 in a sliding way, and a sliding chute 801 is arranged on the peach-shaped part 8. The blocking component is disposed on the peach-shaped member 8 and can extend into the first predetermined position of the sliding chute 801.

Pressing and rotating cap assembly 1, rotating cap assembly 1 and driving toggle rod frame 3, connecting cylinder 4 and peach-shaped piece 8 and moving for shell 2 so that peach-shaped piece 8 is connected with the function rod piece, first elastic piece 5 is compressed, second elastic piece is compressed partially and horizontal spout 401 is fixed in first default position. Of course, in other embodiments, the second elastic member may not be compressed when the peach-shaped member 8 is connected to the function rod member, i.e. the top of the sliding chute 801 is the first predetermined position.

After peach-shaped piece 8 is connected with the functional rod piece, pressing the screw cap component 1 to drive the poking rod frame 3 to push the blocking component to break away from the sliding chute 801 and enable the connecting cylinder 4 to move relative to the peach-shaped piece 8, the second elastic piece 6 is compressed, the transverse chute 401 moves relative to the peach-shaped piece 8 and is positioned at the bottom of the sliding chute 801 so that the screw cap component 1 is hidden in the shell 2.

Pressing the screw cap assembly 1 enables the transverse sliding groove 401 to slide from the bottom of the sliding groove 801 to the top of the sliding groove 801, the first elastic piece 5 and the second elastic piece 6 reset, and the screw cap assembly 1 resets.

In particular, the first elastic element 5 has an elasticity coefficient from 0 to s1 of a first elasticity coefficient k1, from s1 to s2 of a second elasticity coefficient k2, and a second elasticity coefficient greater than s2 of a third elasticity coefficient k3, wherein k3 is greater than k1, and k2 is less than k1 and approximately close to zero. When the knob is connected with the function rod piece, the deformation quantity of the first elastic piece 5 is less than s1, and when the screw cap component 1 is hidden in the shell 2, the deformation quantity of the first elastic piece 5 is more than s 2.

Further, the elastic coefficient of the second elastic element 6 is a fourth elastic coefficient k4, and the deformation amount of the first elastic element 5 when the sliding element 7 reaches the bottom of the sliding chute 801 is greater than s2, wherein k4 is much smaller than k1, the first elastic element 5 of the embodiment is a disc spring, and the second elastic element 6 is a spring.

In other embodiments of the present invention, the relationship between the first elastic coefficient and the third elastic coefficient of the first elastic member 5 is not limited to this limitation of the present embodiment, and k1 may be larger than k3, and is specifically set according to actual needs. In a specific embodiment, k4 may be larger than the larger one of k1 and k3, or smaller than the smaller one of k1 and k3, and is specifically set according to actual needs.

The knob of this embodiment further includes a sliding member 7, one end of the sliding member 7 is slidably connected to the horizontal sliding groove 401, the other end of the sliding member 7 is slidably connected to the sliding groove 801, when the nut component 1 is pressed, the sliding member 7 can be blocked by the blocking member, and when the nut component 1 is hidden in the housing 2, the lever rack 3 can push the blocking member to be separated from the sliding groove 801, so that the sliding member 7 slides along the sliding groove 801.

The knob that this embodiment provided can have ignition function, cap screwing subassembly 1 simultaneously and hide the function and cap screwing subassembly 1 reset function:

when the screw cap assembly 1 is pressed, the first elastic piece 5 and the second elastic piece 6 are firstly compressed simultaneously, the sliding piece 7 slides along the sliding chute 801 to be attached to the blocking assembly, due to the blocking effect of the blocking assembly, the sliding piece 7 stops sliding along the sliding chute 801 continuously, at the moment, when the screw cap assembly 1 is pressed, the length of the second elastic piece 6 is unchanged, the first elastic piece 5 is continuously compressed, the shifting rod frame 3 slides downwards relative to the connecting cylinder 4, and due to the unchanged length of the second elastic piece 6, relative movement between the connecting cylinder 4 and the peach-shaped piece 8 does not occur, until the peach-shaped piece 8 is connected with the function rod piece, due to the fact that the deformation amount of the first elastic piece 5 is smaller than s1, a user does not feel that a large force needs to be added, and then the knob can have an ignition function.

When the lever frame 3 pushes the blocking assembly to be separated from the sliding chute 801, the second elastic element 6 is compressed, the connecting cylinder 4 pushes the sliding piece 7 to move in the sliding chute 801, when the deformation amount of the first elastic element 5 is between s1 and s2, a user feels that the screw cap assembly 1 can continuously move downwards only by relatively small force, the screw cap assembly 1 is continuously pressed, when the deformation amount of the first elastic element 5 reaches s2, the large force is suddenly increased to enable the screw cap assembly 1 to continuously move downwards until the knob is pressed to the lowest position, the knob is loosened at the moment, the sliding piece 7 is positioned at the bottom of the sliding chute 801, the screw cap assembly 1 is hidden in the shell 2, and the knob has a knob assembly hiding function.

When the screw cap component 1 needs to be ejected, the screw cap component 1 is pressed, and under the action of the elastic force of the second elastic piece 6, the screw cap component 1 is ejected out of the shell 2, so that the screw cap component 1 of the knob is reset.

As shown in fig. 1 to 3, the cap screwing assembly 1 of the present embodiment includes a cap screwing body 11 and a cap screwing inner cylinder 12, the cap screwing body 11 is sleeved on the cap screwing inner cylinder 12, a groove 1201 is formed on the cap screwing inner cylinder 12, a protrusion 21 corresponding to the groove 1201 is formed on the housing 2, the protrusion 21 is located in the groove 1201 when the cap screwing assembly 1 is hidden in the housing 2, and the protrusion 21 and the groove 1201 are separated from each other when the knob is ignited. When the knob is in the ignition function, the protrusion 21 and the groove 1201 are in a mutually separated state, and the cap screwing component 1 rotates relative to the shell 2 after ignition, so that the protrusion 21 and the groove 1201 are dislocated, and the cap screwing component 1 cannot be hidden in the shell 2 by pressing the cap screwing component 1. Of course, in other embodiments of the present invention, the screw cap inner cylinder 12 may be provided with a protrusion 21, and the outer shell 2 may be provided with a groove 1201 corresponding to the protrusion 21.

As shown in fig. 4, the shift lever frame 3 of the present embodiment includes a shift lever frame body 31 and a guide rod 32, the shift lever frame body 31 is provided with a shift lever guide post 312, the shift lever guide post 312 is provided with a first guide rib 3121, and as shown in fig. 4, the nut inner barrel 12 is provided with a matching guide groove 1202 corresponding to the first guide rib 3121 to prevent the nut inner barrel 12 from rotating relative to the shift lever frame 3. As shown in fig. 5, the shift lever bracket body 31 is provided with a second guide rib 313, the second guide rib 313 is arranged in parallel with the guide rod 32, as shown in fig. 6, the connection cylinder 4 is provided with a first guide groove 404 and a second guide groove 405, the guide rod 32 can be matched with the first guide groove 404 to enable the guide rod 32 to slide in the first guide groove 404, the second guide rib 313 can be matched with the second guide groove 405 to enable the second guide rib 313 to slide in the second guide groove 405, the guide rod 32 can be slidably connected to the connection cylinder 4, the lower part of the guide rod 32 is provided with a first inclined surface 321, and the first inclined surface 321 can be matched with the blocking block 91 to enable the blocking block 91 to be separated from the sliding chute 801.

In order to position the toggle rod frame 3 and the connecting cylinder 4, as shown in fig. 5, a limiting buckle 311 is disposed on the toggle rod frame 3, as shown in fig. 6, a limiting hole 402 is disposed on the connecting cylinder 4, the limiting buckle 311 can be installed in the limiting hole 402, the limiting buckle 311 can be separated from the limiting hole 402 and move to a side close to the slider 7, and the limiting buckle 311 cannot be separated from the limiting hole 402 and then move to a side close to the screw cap assembly 1, that is, when the screw cap assembly 1 is vertically placed upward, the limiting buckle 311 can only slide relative to the region of the connecting cylinder 4 below the limiting hole 402 and cannot slide relative to the region of the limiting hole 402 above the limiting hole 402.

As shown in fig. 1, a connection guide post 42 is disposed at one end of the connection cylinder 4 of the present embodiment, and the first elastic member 5 is sleeved on the connection guide post 42. As shown in fig. 6, the connection cylinder 4 defines a connection cavity 403, one end of the connection cavity 403 is open, and a mounting column 41 is disposed at the bottom of the connection cavity 403, as shown in fig. 8, a first mounting hole 803 is disposed at one end of the peach-shaped member 8 close to the screw cap assembly 1, the mounting column 41 and the first mounting hole 803 are coaxially disposed, one end of the second elastic member 6 is sleeved on the mounting column 41, and the other end is located in the first mounting hole 803 and abuts against the peach-shaped member 8.

As shown in fig. 8, the sliding chute 801 of the present embodiment includes a first sliding chute 8011, a limiting sliding chute 8012 and a second sliding chute 8013 that are sequentially communicated, the limiting sliding chute 8012 is disposed corresponding to the lateral sliding chute 401, the blocking component can extend into the first sliding chute 8011, the sliding component 7 can move into the limiting sliding chute 8012 along the first sliding chute 8011 to reach the bottom of the sliding chute 801, and can return to the top of the sliding chute 801 along the second sliding chute 8013 from the limiting sliding chute 8012. Specifically, the number of the sliding chutes 801 in this embodiment is two, the two sliding chutes 801 are respectively disposed on two opposite side surfaces of the peach-shaped member 8, correspondingly, the number of the transverse chutes 401 on the connecting cylinder 4 is two, the number of the sliding members 7 is two, and the sliding chutes 801, the transverse chutes 401, and the sliding members 7 are correspondingly disposed.

As shown in fig. 8, the sliding member 7 of the present embodiment is a roller, and the roller includes a roller body and sliding columns located at two sides of the roller body, wherein one of the sliding columns is slidably connected in the sliding chute 801, and the other sliding column is slidably connected in the transverse chute 401.

Specifically, the blocking assembly of the present embodiment includes a blocking block 91 and a third elastic member (not shown in the figure), the third elastic member of the present embodiment is a spring, one end of the third elastic member abuts against the inner wall surface of the peach-shaped member 8, the other end abuts against the blocking block 91, and the central axis direction of the third elastic member is perpendicular to the central axis direction of the connecting cylinder 4.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (11)

1. A knob, comprising:

a screw cap assembly (1);

the shell (2), the said shell (2) is fixedly connected with function member;

the rotating cap component (1) is fixedly connected with the poking rod frame (3);

the connecting cylinder body (4), the connecting cylinder body (4) is connected with the poking rod frame (3) in a sliding mode, and a transverse sliding groove (401) is formed in the connecting cylinder body (4);

the first elastic piece (5), the first elastic piece (5) is clamped between the poking rod frame (3) and the connecting cylinder (4), and the poking rod frame (3) can drive the connecting cylinder (4) to move synchronously through the first elastic piece (5);

the peach-shaped part (8), the peach-shaped part (8) is connected with the connecting cylinder body (4) in a sliding mode, and a sliding chute (801) is formed in the peach-shaped part (8);

a second elastic member (6), one end of the second elastic member (6) is abutted against the connecting cylinder (4), and the other end of the second elastic member is abutted against the peach-shaped member (8);

the blocking component is arranged on the peach-shaped part (8) and can extend into a first preset position of the sliding chute (801);

pressing the screwing cap assembly (1), wherein the screwing cap assembly (1) drives the poking rod frame (3), the connecting cylinder body (4) and the peach-shaped part (8) to move relative to the shell (2) so as to connect the peach-shaped part (8) with the function rod piece, the first elastic piece (5) is compressed, the second elastic piece is at most partially compressed, and the transverse sliding groove (401) is fixed at the first preset position;

after the peach-shaped part (8) is connected with the functional rod piece, the cap screwing component (1) is pressed to enable the cap screwing component (1) to drive the poking rod frame (3) to push the blocking component to be separated from the sliding chute (801) and enable the connecting cylinder body (4) to move relative to the peach-shaped part (8), the second elastic part (6) is compressed, the transverse chute (401) moves relative to the peach-shaped part (8) and is positioned at the bottom of the sliding chute (801) so that the cap screwing component (1) is hidden in the shell (2);

pressing the cap screwing component (1) enables the transverse sliding groove (401) to slide from the bottom of the sliding groove (801) to the top of the sliding groove (801), the first elastic piece (5) and the second elastic piece (6) reset, and the cap screwing component (1) resets.

2. Knob according to claim 1, wherein the first elastic element (5) has a deformation quantity with a first elastic coefficient at 0-s1, a second elastic coefficient at s1-s2, a deformation quantity greater than s2, a third elastic coefficient, the second elastic coefficient being smaller than the smaller of the first and third elastic coefficients, the first elastic element (5) having a deformation quantity less than s1 when the knob is connected to the functional lever, and the first elastic element (5) having a deformation quantity greater than s2 when the nut assembly (1) is concealed in the housing (2).

3. Knob according to claim 2, wherein the second spring element (6) has a spring constant which is greater than the greater of the first spring constant and the third spring constant or which is less than the lesser of the first spring constant and the third spring constant.

4. The knob according to claim 3, wherein said first elastic member (5) is a disc spring and said second elastic member (6) is a spring, said fourth elastic modulus of said spring being smaller than the smaller of said first elastic modulus and said third elastic modulus.

5. The knob according to claim 1, wherein the blocking assembly comprises a blocking block (91) and a third elastic member, a limiting sliding groove (802) communicated with the sliding groove (801) is formed in the peach-shaped member (8), the blocking block (91) is arranged on the limiting sliding groove (802) and can extend into the sliding groove (801), one end of the third elastic member abuts against the inner wall surface of the peach-shaped member (8), the other end of the third elastic member abuts against the blocking block (91), and the central axis direction of the third elastic member is perpendicular to the central axis direction of the connecting cylinder (4).

6. The knob according to claim 5, wherein the lever bracket (3) comprises a lever bracket body (31) and a guide rod (32), the guide rod (32) is slidably connected to the connecting cylinder (4), the guide rod (32) is provided with a first inclined surface (321), and the first inclined surface (321) can be matched with the stop block (91) to separate the stop block (91) from the sliding chute (801).

7. The knob according to any one of claims 1 to 6, further comprising a sliding member (7), wherein one end of the sliding member (7) is slidably connected to the transverse sliding groove (401) and the other end is slidably connected to the sliding groove (801), when the nut assembly (1) is pressed, the sliding member (7) can be blocked by the blocking assembly, when the nut assembly (1) is hidden in the housing (2), the dial rack (3) can push the blocking assembly to be separated from the sliding groove (801) so that the sliding member (7) slides along the sliding groove (801).

8. The knob according to claim 7, characterized in that one of the housing (2) and the cap screwing assembly (1) is provided with a groove (1201), the other is provided with a protrusion (21) corresponding to the groove (1201), the protrusion (21) is located in the groove (1201) when the cap screwing assembly (1) is hidden in the housing (2), and the protrusion (21) and the groove (1201) are disengaged from each other when the sliding member (7) is located at the top of the sliding chute (801).

9. The knob according to claim 7, wherein the sliding chute (801) comprises a first sliding chute (8011), a limiting sliding chute (8012) and a second sliding chute (8013) which are sequentially communicated, the transverse chute (401) and the limiting sliding chute (8012) are correspondingly arranged, the blocking assembly can extend into the first sliding chute (8011), the sliding member (7) can move into the limiting sliding chute (8012) along the first sliding chute (8011) to reach the bottom of the sliding chute (801), and the sliding member (7) can also return to the top of the sliding chute (801) along the second sliding chute (8013) from the limiting sliding chute (8012).

10. The knob according to any one of claims 1 to 6, wherein a mounting column (41) is provided in the connection cylinder (4), a first mounting hole (803) is provided at an end of the peach-shaped member (8) close to the screw cap assembly (1), the mounting column (41) is coaxially provided with the first mounting hole (803), an end of the second elastic member (6) is sleeved on the mounting column (41), and at least a part of the second elastic member (6) is located in the first mounting hole (803) and abuts against the peach-shaped member (8).

11. The knob according to any one of claims 1 to 6, wherein a limit buckle (311) is provided on the dial rod holder (3), a limit hole (402) is provided on the connection cylinder (4), the limit buckle (311) can be installed in the limit hole (402), and the limit buckle (311) can be separated from the limit hole (402) and move to a side close to the function rod.

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