A gas cock valve and a gas using device

Abstract

The present invention relates to the technical field of kitchen appliances, and particularly relates to a gas cock valve and a gas-using device. A gas cock valve provided by the present invention comprises a valve stem and a valve body. An installation hole is provided on the valve body, and the valve stem is arranged in the installation hole and can rotate relative to the valve body. The gas cock valve further comprises: an elastic component which is arranged between the inner wall of the installation hole and the valve stem; the elastic component comprises a plurality of spaced-apart protrusions, each protrusion can move along the radial direction of the installation hole, and damping positions are formed on both sides of the protrusion; a connecting part is provided on the valve stem, and the connecting part is connected with the damping position. When the valve stem is rotated, the protrusions contract under pressure, the connecting part is connected with the damping position, and the valve stem is limited. When the valve stem continues to rotate, the connecting part is connected with the next damping position. By arranging a plurality of damping positions, the gas cock valve has a plurality of active sections, so that a user can accurately control the firepower, and the user experience is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly to a gas cock and a gas-using device. Background Art

[0002] As a gas cooking device, a gas stove is almost an essential kitchen appliance in every household.

[0003] A gas stove generally includes structures such as a burner head, a cock, and an igniter. When a user uses the gas stove, the user presses a switch to start the igniter, and at the same time turns the cock. The gas flows through a pipeline to the burner head and is ignited by the igniter. Most gas stoves control the gas volume by turning the gas cock, and thus control the size of the firepower.

[0004] In the prior art, most gas cocks are steplessly adjusted. For beginners in cooking, it is difficult to accurately adjust to a certain firepower. And the electronically controlled gas cock has a high cost and poor market circulation, resulting in a poor user experience. Summary of the Invention

[0005] (1) The problem to be solved by the present invention is that the existing gas cock has no stop effect and it is difficult to accurately control the firepower.

[0006] (2) Technical Solution

[0007] To solve the above technical problem, an embodiment of the present invention provides a gas cock. The gas cock includes a valve rod and a valve body. An installation hole is provided on the valve body. The valve rod is arranged in the installation hole and can rotate relative to the valve body. The gas cock further includes: an elastic component arranged between the inner wall of the installation hole and the valve rod;

[0008] The elastic component includes a plurality of spaced-apart protrusions. Each protrusion can move along the radial direction of the installation hole. Damping positions are formed on both sides of the protrusion;

[0009] A connection part is provided on the valve rod, and the connection part is connected to the damping position.

[0010] According to an embodiment of the present invention, the elastic component includes an elastic retaining piece;

[0011] The elastic retaining piece is connected to the inner wall of the installation hole. The protrusion includes a plurality of protruding parts spaced apart on the elastic retaining piece. The damping positions are formed on both sides of the protruding part.

[0012] According to an embodiment of the present invention, the elastic retaining piece is a strip-shaped leaf spring, and a plurality of peaks and valleys are provided on the leaf spring;

[0013] The protruding portion is a crest provided on the leaf spring.

[0014] According to an embodiment of the present invention, the gas cock valve further includes a limit assembly;

[0015] The limit assembly includes a plurality of stoppers, and the stoppers are arranged in one-to-one correspondence with the protruding portions;

[0016] One end of the stopper is connected to the protruding portion.

[0017] According to an embodiment of the present invention, the limit assembly further includes a housing, the housing includes a base and an upper cover, the upper cover and the base are connected, and a receiving cavity is formed in the base;

[0018] A connection hole is provided on the bottom wall of the receiving cavity, and the connection hole communicates with the mounting hole;

[0019] The elastic retaining piece, the connecting portion and the stopper are all arranged in the receiving cavity.

[0020] According to an embodiment of the present invention, the limit assembly further includes a plurality of fixing posts;

[0021] One end of each fixing post is connected to the bottom wall of the receiving cavity, and the plurality of fixing posts are arranged at intervals;

[0022] The leaf spring is arranged between the side wall of the receiving cavity and the fixing posts, and the fixing posts are provided on both sides of each crest.

[0023] According to an embodiment of the present invention, a limiting portion is provided at one end of the stopper close to the protruding portion;

[0024] Both ends of the limiting portion are in contact with two adjacent fixing posts respectively.

[0025] According to an embodiment of the present invention, the connecting portion is a convex block provided on the valve stem;

[0026] A first guiding surface is provided on the end surface of the end of the stopper away from the protruding portion;

[0027] A second guiding surface that cooperates with the first guiding surface is provided on the end surface of the end of the convex block away from the valve stem.

[0028] According to an embodiment of the present invention, both the first guiding surface and the second guiding surface are arc-shaped surfaces.

[0029] Another embodiment of the present invention provides a gas using device, including the gas cock valve according to any one of the above embodiments.

[0030] Advantages of the present invention:

[0031] A gas cock valve provided by the present invention, the gas cock valve includes a valve stem and a valve body, the valve body is provided with a mounting hole, the valve stem is arranged in the mounting hole, and the valve stem can rotate relative to the valve body. The gas cock valve further includes: an elastic component, the elastic component is arranged between the inner wall of the mounting hole and the valve stem; the elastic component includes a plurality of protrusions arranged at intervals, each protrusion can move along the radial direction of the mounting hole, and damping positions are formed on both sides of the protrusion; a connecting portion is arranged on the valve stem, and the connecting portion is connected to the damping position.

[0032] By arranging a plurality of protrusions between the inner wall of the mounting hole and the valve stem, when the valve stem is rotated, the protrusions contract under pressure, the connecting portion is connected to the damping position, and the valve stem is limited. When the valve stem continues to rotate, the connecting portion is connected to the next damping position. By setting a plurality of damping positions, the gas cock valve has a plurality of active segments, enabling the user to precisely control the firepower and providing a relatively high user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic structural diagram of the gas cock valve provided by the embodiment of the present invention;

[0035] Figure 2 It is a top view of the gas cock valve provided by the embodiment of the present invention;

[0036] Figure 3 It is an exploded view of the gas cock valve provided by the embodiment of the present invention;

[0037] Figure 4 It is a schematic structural diagram of the valve stem of another embodiment provided by the embodiment of the present invention;

[0038] Figure 5 It is a schematic structural diagram of the stopper of another embodiment provided by the embodiment of the present invention.

[0039] Reference numerals: 110 - valve body; 120 - valve stem; 121 - connecting portion; 1211 - convex block; 12111 - second guiding surface;

[0040] 210 - elastic retaining piece; 211 - protruding portion;

[0041] 310 - stopper; 311 - limiting part; 3111 - limiting block; 312 - first guiding surface; 320 - fixing post; 330 - housing; 331 - upper cover; 332 - base; 3321 - accommodating cavity

[0042] 410 - second placement hole; 411 - first limiting ring; 420 - elastic member; 430 - second limiting ring Detailed implementation manners

[0043] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0044] As Figures 1 to 4 shown, an embodiment of the present invention provides a gas cock valve, the gas cock valve includes a valve stem 120 and a valve body 110, the valve body 110 is provided with a mounting hole, the valve stem 120 is arranged in the mounting hole, and the valve stem 120 can rotate relative to the valve body 110. The gas cock valve further includes: an elastic component, the elastic component is arranged between the inner wall of the mounting hole and the valve stem 120; the elastic component includes a plurality of spaced-apart protrusions, each protrusion can move along the radial direction of the mounting hole, and damping positions are formed on both sides of the protrusion; a connecting portion 121 is provided on the valve stem 120, and the connecting portion 121 is connected to the damping position

[0045] The gas cock valve provided in this embodiment includes a valve stem 120 and a valve body 110. A passage for passing gas is provided in the valve body 110. The valve stem 120 is installed in the mounting hole. By screwing the valve stem 120, the gas flow rate can be controlled

[0046] In this embodiment, the gas cock valve includes an elastic component, and the elastic component is installed between the inner wall of the mounting hole and the valve stem 120. Optionally, the elastic component can be connected to the inner wall of the mounting hole, or structures such as brackets and supports can be provided to fix the elastic component. A plurality of protrusions are spaced on the elastic component, and damping positions are formed on both sides of the protrusion. A connecting portion 121 for connecting to the damping position is provided on the valve stem 120

[0047] In this embodiment, taking the example that the elastic component includes two protrusions arranged at intervals, and in the counterclockwise direction, the two protrusions are the first protrusion and the second protrusion respectively. In the initial state, the connecting portion 121 is located on the right side of the first protrusion. When the valve stem 120 is rotated, under the extrusion of the connecting portion 121, the first protrusion contracts, and the connecting portion 121 enters between the first protrusion and the second protrusion, that is, the connecting portion 121 is connected to the damping position. At the same time, the first protrusion rebounds to limit the connecting portion 121. Continuing to rotate the valve stem 120, the connecting portion 121 squeezes the second protrusion, the second protrusion contracts, the connecting portion 121 rotates to the left side of the second protrusion, and at the same time the second protrusion rebounds to limit the connecting portion 121, and the connecting portion 121 is connected to another damping position.

[0048] By providing a plurality of protrusions between the inner wall of the installation hole and the valve stem 120, when the valve stem 120 is rotated, the valve stem 120 abuts against both sides of the protrusion, that is, the damping position, to form a limit on the valve stem 120. When the valve stem 120 is continuously rotated, the protrusion contracts under the action of the extrusion force, so that the connecting portion 121 on the valve stem 120 is connected to the next damping position. By providing a plurality of damping positions, the user can accurately control the firepower, and the user experience is relatively high.

[0049] It can be understood that in this embodiment, a plurality of protrusions arranged at intervals can also be provided on the valve stem 120, and the connecting portion 121 is arranged between the inner wall of the installation hole and the valve stem 120, which can also achieve the purpose of setting a plurality of damping positions in the present invention to accurately control the firepower.

[0050] As Figure 2 and Figure 3 shown, the elastic component includes an elastic retaining piece 210; the elastic retaining piece 210 is connected to the inner wall of the installation hole, the protrusion includes a plurality of protruding portions 211 arranged at intervals on the elastic retaining piece 210, and both sides of the protruding portion 211 form the damping position.

[0051] For the gas cock valve provided in this embodiment, the elastic retaining piece 210 is elastic, so as to realize the expansion and contraction of the protruding portion 211, which is convenient for rotating the valve stem 120, and at the same time can also limit the valve stem 120 to prevent the valve stem 120 from rotating and affecting cooking.

[0052] As Figure 2 and Figure 3 shown, the elastic retaining piece 210 is a strip-shaped leaf spring, and a plurality of peaks and valleys are provided on the leaf spring; the protruding portion 211 is a wave crest provided on the leaf spring.

[0053] The gas cock valve provided in this embodiment. Specifically, the elastic baffle is a strip-shaped leaf spring, and a plurality of peaks and valleys are provided on the leaf spring to form the protrusion 211 and the damping positions. Specifically, the wave crest is the protrusion 211, and the wave valleys on both sides of each wave crest are the damping positions.

[0054] When the valve stem 120 is turned, the wave crest is squeezed and contracted, and the connecting portion 121 on the valve stem 120 rotates from one side of the wave crest to the other side, realizing multiple firepower adjustments.

[0055] It can be understood that in this embodiment, the elastic component may further include a plurality of spring pieces, which are arranged at intervals. When being squeezed, the spring pieces can tilt towards the inner wall of the mounting hole. When the connecting portion 121 rotates past, the spring pieces can reset.

[0056] As Figures 2 to 3 shown, the gas cock valve further includes a limit component; the limit component includes a plurality of stoppers 310, and the stoppers 310 are arranged in one-to-one correspondence with the protrusions 211; one end of the stopper 310 is connected to the protrusion 211.

[0057] For the gas cock valve provided in this embodiment, the limit component is used to improve the damping effect and prevent the connecting portion 121 from falling off from the damping position.

[0058] In this embodiment, the stoppers 310 are arranged in one-to-one correspondence with the protrusions 211, that is, each stopper 310 corresponds to one protrusion 211, that is, the wave crest. One end of the stopper 310 is connected to the protrusion 211, and the protrusion 211 is used to apply a force to the baffle towards the direction away from the inner wall of the mounting hole.

[0059] It can be understood that the elastic component may further include a plurality of compression springs.

[0060] Specifically, a plurality of first placement holes are arranged at intervals on the inner wall of the mounting hole, and each first placement hole is provided with the compression spring, wherein the first placement holes, the compression springs and the stoppers 310 are arranged in one-to-one correspondence.

[0061] The stopper 310 is installed in the first placement hole, and one end extends out of the first placement hole, and the damping positions are formed on both sides of the stopper 310. The connecting portion 121 abuts against the stopper 310 to realize multi-stage firepower adjustment.

[0062] In this embodiment, the plurality of stoppers 310 can also be directly arranged at intervals on the inner wall of the mounting hole, which can also achieve the purpose that the gas cock valve in this example can perform multi-stage firepower adjustment.

[0063] It can be understood that in this embodiment, the elastic retaining piece 210 can also be made of rubber or the like.

[0064] As Figures 1 to 3 shown, the limiting component further includes a housing 330, the housing 330 includes a base 332 and an upper cover 331, the upper cover 331 is connected to the base 332, and a receiving cavity 3321 is formed in the base 332; a connection hole is provided on the bottom wall of the receiving cavity 3321, and the connection hole is communicated with the mounting hole; the elastic retaining piece 210, the connecting portion 121 and the stopper 310 are all arranged in the receiving cavity 3321.

[0065] For the gas cock valve provided in this embodiment, the limiting component further includes a housing 330 to prevent dust, dirt, water, etc. from entering the housing 330 and affecting the damping effect of the damping position.

[0066] In this embodiment, the housing 330 includes a base 332 and an upper cover 331, and the upper cover 331 covers the base 332 to form a receiving cavity 3321 for accommodating the elastic retaining piece 210 and the stopper 310. Among them, the upper cover 331 and the base 332 are preferably made of plastic material, with low cost and convenient production and manufacturing. The upper cover 331 and the base 332 can be connected by a snap connection or a riveting method.

[0067] Specifically, the upper cover 331 and the base 332 are riveted. A threaded hole is provided on the base 332, and a through hole is correspondingly provided on the upper cover 331. One end of a screw passes through the through hole and is in fit connection with the threaded hole.

[0068] At the same time, the base 332 and the valve body 110 are also connected by a riveting method.

[0069] In this embodiment, a hole corresponding to the connection hole is provided on the upper cover 331 for installing the valve stem 120.

[0070] It can be understood that in this embodiment, the upper cover 331 and the base 332 can also be made of aluminum or stainless steel.

[0071] In this embodiment, the base 332 of the receiving cavity 3321 is provided with a connection hole that is communicated with the mounting hole. The elastic retaining pieces 210 and the stoppers 310 are evenly distributed along the edge of the connection hole. The elastic retaining piece 210 is arranged between the stopper 310 and the inner wall of the receiving cavity 3321 to apply a force to the stopper 310 to move in the direction of the connection hole.

[0072] As Figure 2 and Figure 3As shown, the limiting component further includes a plurality of fixing posts 320; one end of each fixing post 320 is connected to the bottom wall of the accommodating cavity 3321, and the plurality of fixing posts 320 are arranged at intervals; the leaf spring is arranged between the side wall of the accommodating cavity 3321 and the fixing posts 320, and the fixing posts 320 are arranged on both sides of each wave crest.

[0073] In the gas cock valve provided in this embodiment, the elastic retaining piece 210 and the retaining block 310 are fixed by the fixing posts 320.

[0074] As Figure 2 and Figure 3 As shown, a limiting portion 311 is provided at one end of the retaining block 310 close to the protruding portion 211; both ends of the limiting portion 311 are in contact with two adjacent fixing posts 320.

[0075] In the gas cock valve provided in this embodiment, the limiting portion 311 is used to prevent the retaining block 310 from falling off between the fixing posts 320 under the action of the leaf spring.

[0076] In actual use, the number of the fixing posts 320 is always one more than the number of the retaining blocks 310 to fix the retaining blocks 310.

[0077] In actual use, the retaining block 310 is a retaining block 310 with a triangular cross section, and one end of the base of the triangle is the limiting portion 311.

[0078] It can be understood that in this embodiment, the limiting portion 311 may also include another implementation manner.

[0079] As Figure 5 As shown, in this embodiment, the limiting portion 311 is a limiting block 3111 connected to one end of the retaining block 310 close to the elastic retaining piece 210, and both ends of the limiting block 3111 are in contact with the fixing posts 320 to prevent the retaining block 310 from falling off.

[0080] As Figure 2 and Figure 3 As shown, the connecting portion 121 is a convex block 1211 provided on the valve stem 120; a first guiding surface 312 is provided on the end surface of one end of the retaining block 310 away from the protruding portion 211; a second guiding surface 12111 matching the first guiding surface 312 is provided on the end surface of one end of the convex block 1211 away from the valve stem 120.

[0081] The gas cock valve provided in this embodiment, specifically, the connecting portion 121 is a bump 1211 provided on the valve stem 120. The bump 1211 can be integrally cast with the valve stem 120, or can be connected to the side wall of the valve stem 120 by means such as welding.

[0082] Both the bump 1211 and the stopper 310 are provided with guide surfaces. During rotation, the second guide surface 12111 abuts against the first guide surface 312 and applies a squeezing force to the first guide surface 312. By providing two guide surfaces, the resistance during rotation can be reduced, which is convenient for users to use, and at the same time, the service life of the product can be extended.

[0083] It can be understood that in this embodiment, the bump 1211 also includes another setting form.

[0084] As Figure 4 shown, a second placement hole 410 is opened on the side wall of the valve stem 120, and the bump 1211 is telescopically installed in the second placement hole 410.

[0085] An elastic member 420 is provided between the bump 1211 and the bottom wall of the second placement hole 410. The elastic member 420 is used to apply a force to the bump 1211 to move in a direction away from the second placement hole 410. When the valve stem 120 is rotated, the bump 1211 is compressed and contracted, which is convenient for the user to rotate. At the same time, when it is rotated to the damping position, the bump 1211 extends out to limit the valve stem 120, thereby realizing that the gas cock valve has multiple fire powers.

[0086] Specifically, the elastic member 420 is a compression spring.

[0087] In this embodiment, a first limiting ring 411 is provided at the inner edge of the second placement hole 410, and a second limiting ring 430 is provided at one end of the bump 1211 close to the compression spring. Through the cooperation of the first limiting ring 411 and the second limiting ring 430, the bump 1211 is prevented from falling off from the placement hole.

[0088] In this embodiment, a damping groove can also be provided on the inner wall of the installation hole to cooperate with the bump 1211, and at the same time, it is necessary to ensure that an arc-shaped or inclined guide surface is provided at the edge of the damping groove to facilitate the rotation of the valve stem 120.

[0089] As Figure 2 and Figure 3 shown, both the first guide surface 312 and the second guide surface 12111 are arc-shaped surfaces.

[0090] For the gas cock valve provided in this embodiment, since both the first guiding surface 312 and the second guiding surface 12111 are arc-shaped surfaces, the resistance at this time is always tangent to the two guiding surfaces, with the smallest resistance and the most convenient rotation.

[0091] It can be understood that in this embodiment, the guiding surface can also be an inclined surface.

[0092] The present invention also provides a gas-using device, including the cock valve described in any of the above embodiments.

[0093] It can be understood that the gas-using device provided in this embodiment can be a gas stove or an integrated stove.

[0094] In this embodiment, by screwing the gas cock valve, the firepower is controlled, which is convenient for the user to cook.

[0095] In this embodiment, on the panel of the gas stove or integrated stove, there can be markings for the firepower level. The user can rotate the gas cock valve according to the usage situation. At the same time, the elastic component and the limiting component limit the valve rod 120, which is convenient for beginners to use.

[0096] It can be understood that the gas-using device in this embodiment can also be a gas water heater.

[0097] In this embodiment, the user controls the firepower level of the gas water heater by screwing the gas cock valve, and thus controls the outlet water temperature.

[0098] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0099] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0100] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A gas cock valve, the gas cock valve comprising a valve stem (120) and a valve body (110), the valve body (110) being provided with a mounting hole, the valve stem (120) being disposed in the mounting hole, and the valve stem (120) being capable of rotating relative to the valve body (110), characterized in that, The gas cock valve further includes: an elastic component disposed between the inner wall of the mounting hole and the valve stem (120); The elastic component includes a plurality of protrusions arranged at intervals, and each protrusion can move radially along the mounting hole, and damping positions are formed on both sides of the protrusion; A connecting portion (121) is provided on the valve stem (120), and the connecting portion (121) is connected to the damping position; The elastic component includes an elastic retaining piece (210), and the elastic retaining piece (210) has elasticity; The elastic retaining piece (210) is connected to the inner wall of the mounting hole. The protrusion includes a plurality of protruding portions (211) arranged at intervals on the elastic retaining piece (210), and the protruding portions (211) can expand and contract radially along the mounting hole, and damping positions are formed on both sides of the protruding portions (211); The elastic retaining piece (210) is a strip-shaped leaf spring, and a plurality of peaks and valleys are provided on the leaf spring; The protruding portion (211) is a wave peak provided on the leaf spring; 2. The gas cock valve according to claim 1, characterized in that, The gas cock valve further includes a limiting component; The limiting component includes a plurality of stoppers (310), and the stoppers (310) are arranged in one-to-one correspondence with the protruding portions (211); One end of the stopper (310) is connected to the protruding portion (211); 3. The gas cock valve according to claim 2, wherein The limiting component further includes a housing (330), the housing (330) includes a base (332) and an upper cover (331), the upper cover (331) is connected to the base (332), and a receiving cavity (3321) is formed in the base (332); A connecting hole is provided on the bottom wall of the receiving cavity (3321), and the connecting hole communicates with the mounting hole; The elastic retaining piece (210), the connecting portion (121) and the stopper (310) are all arranged in the receiving cavity (3321); 4. The gas cock valve according to claim 3, characterized in that, The limiting component further includes a plurality of fixing posts (320); One end of each fixing post (320) is connected to the bottom wall of the receiving cavity (3321), and the plurality of fixing posts (320) are arranged at intervals; The leaf spring is arranged between the side wall of the receiving cavity (3321) and the fixing posts (320), and fixing posts (320) are provided on both sides of each wave peak; 5. The gas cock valve according to claim 4, characterized in that, A limiting portion (311) is provided at one end of the stopper (310) close to the protruding portion (211); Both ends of the limiting portion (311) are in contact with two adjacent fixing posts (320); 6. The gas cock valve according to claim 2, characterized in that, The connecting portion (121) is a convex block (1211) provided on the valve stem (120); A first guiding surface (312) is provided on the end surface of one end of the stopper (310) away from the protruding portion (211); A second guiding surface (12111) cooperating with the first guiding surface (312) is provided on the end surface of one end of the convex block (1211) away from the valve stem (120); 7. The gas cock valve according to claim 6, characterized in that, Both the first guiding surface (312) and the second guiding surface (12111) are arc-shaped surfaces; 8. A gas-using device, characterized in that, Including the gas cock valve according to any one of claims 1 to 7.

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