Rotatable and adjustable grinder

Abstract

The utility model provides a grinder capable of being rotationally adjusted, which comprises a barrel body, a rotating shaft, a rotating shaft, a rotating shaft and a driving device, wherein the barrel body is internally provided with a blanking channel convenient for materials to pass; the lifting sleeve is rotatably mounted above the center of the barrel in a lifting manner; the through rod is arranged in the lifting sleeve and a central hole of the cylinder in a penetrating manner; the grinding inner core is mounted at the lower end of the through rod; the spring is arranged between the grinding inner core and the barrel in a sleeving manner; through the structural design of the lifting sleeve capable of being rotationally adjusted, the spring and the adjusting knob, the size of grinding particles can be accurately adjusted, and a user can flexibly adjust the grinding thickness according to the brewing requirements of different coffee; and by combining with a limiting structure, the problems that parts shake and fall off when fine particles are ground can be effectively solved, the grinding precision and consistency can be improved, the state of coffee powder can be conveniently observed through the transparent material receiving cup, and the coffee grinding machine has the advantages of being convenient and fast to operate, accurate in adjustment and stable in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grinding equipment technical field especially a rotatable adjustable grinder. BACKGROUND

[0002] The manual coffee grinder is a kind of equipment that grinds coffee beans into coffee powder by manual operation, and is widely used in family, office and outdoor scene, and its core function is to grind coffee beans into the particle size suitable for brewing by rotating the grinding handle manually, and the manual coffee grinder is favored by coffee lovers due to its portability, no power driving and the characteristics of providing fresh ground coffee powder.

[0003] However, the existing manual coffee grinder still has certain defects in structure, mainly in that most of the existing manual coffee grinders do not have the function of adjusting the grinding particle size, and cannot meet the user's adjustment of the fineness of the grinding particles according to different coffee brewing requirements, so that the user cannot obtain the best coffee flavor and taste.

[0004] Although some grinders are equipped with grinding particle size adjustment function, there is a large activity gap in the structure of the upper adjusting part, especially when the grinding particle size is adjusted to the minimum, the adjusting part will be stretched to the feeding direction, so that obvious shaking occurs during use, this structure not only affects the accuracy and consistency of grinding, but also increases the risk of falling of the adjusting part during use, affects the service life of the grinder and user experience. SUMMARY

[0005] The utility model provides a rotatable adjustable grinder to solve the problem of inconvenient adjustment of grinding particle size of the existing grinder and shaking of the adjusting part during use proposed in the background art.

[0006] The technical scheme of the utility model is as follows:

[0007] A rotatable adjustable grinder, comprising:

[0008] The cylinder has a discharging channel inside for facilitating the passage of materials;

[0009] The lifting sleeve is rotatable and liftable and is installed at the center upper position of the cylinder;

[0010] The through rod is arranged through the center hole of the lifting sleeve and the cylinder;

[0011] The grinding inner core is installed at the lower end position of the through rod;

[0012] The spring is sleeved between the grinding inner core and the cylinder;

[0013] The outer wall of the through rod is provided with a blocking ring with a diameter larger than the center hole of the lifting sleeve, when the lifting sleeve is lifted, the through rod can be lifted, when the lifting sleeve is lowered, the through rod and the grinding inner core can be moved downward by the spring force.

[0014] Preferably, the adjusting knob is rotatably installed above the barrel, the adjusting knob is rotatably connected with the lifting sleeve, and the adjusting knob and the lifting sleeve can move relative to each other along the axis.

[0015] A first limiting structure for limiting excessive rotation of the adjusting knob and a second limiting structure for limiting excessive movement of the adjusting knob along the axis are arranged between the adjusting knob and the barrel.

[0016] Preferably, the first limiting structure includes a positioning plate arranged below the adjusting knob and extending downward, and a limiting portion is arranged on the barrel at the movement path position of the positioning plate, when the positioning plate rotates with the adjusting knob and moves to the position of the limiting portion, the limiting portion can be in contact with the limiting portion, thereby limiting the rotation of the adjusting knob.

[0017] Preferably, the second limiting structure includes an annular groove arranged on the outer wall of the adjusting knob, and a limiting block is arranged on the inner wall of the barrel and can be placed in the annular groove.

[0018] Preferably, at least one spring plunger is arranged in the circumferential direction of the adjusting knob, and grooves matched with the spring plungers are uniformly distributed on the inner wall of the barrel, and the steel ball end of the spring plunger can abut against the groove.

[0019] Preferably, a top cover axially movable relative to the through rod is arranged at the top end of the through rod, and a driving handle is arranged on the top cover.

[0020] Preferably, a bushing is arranged between the barrel and the spring, the bushing is sleeved on the through rod and synchronously connected with the through rod.

[0021] Preferably, a gasket synchronously connected with the through rod is arranged at the lower end of the through rod, the edge of the gasket has an upwardly bent limiting plate, the limiting plate can be inserted into a limiting hole arranged at the bottom of the grinding inner core to prevent the grinding inner core from rotating relative to the through rod, and a nut is threadedly connected at the lower end of the through rod.

[0022] Preferably, the device further comprises:

[0023] A connecting base fixed at the lower end of the barrel;

[0024] A grinding seat fixed between the barrel and the connecting base, and the grinding inner core is located at the center of the grinding seat, a grinding cavity is formed between the grinding inner core and the grinding seat, and the grinding cavity is connected with the discharging channel in the barrel.

[0025] A receiving cup is detachably connected to the lower end of the connecting base.

[0026] Preferably, the receiving cup is made of a material with a transparent effect.

[0027] With the above technical scheme, the utility model has the beneficial effects that:

[0028] The utility model discloses a rotatable adjusting lifting sleeve, spring and adjusting knob structure design can realize the accurate adjustment of the size of the grinding particle, satisfy the user according to the different coffee brewing requirement flexible adjustment grinding fineness, and the combination limiting structure can effectively avoid the problem of the shaking and falling of parts when grinding fine particles, is favorable to improve the grinding accuracy and consistency, and the transparent receiving cup can be convenient for observing the state of coffee powder, has the advantages of convenient operation, accurate adjustment and stable structure. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0030] Figure 1 It is the perspective view of the utility model;

[0031] Figure 2 It is the exploded view of the utility model;

[0032] Figure 3 It is the sectional view of the utility model;

[0033] Figure 4 It is the exploded view of the utility model through the rod, gasket and nut;

[0034] Figure 5 It is the perspective view of the adjusting knob of the utility model Figure 1 ;

[0035] Figure 6 It is the perspective view of the adjusting knob of the utility model Figure 2 ;

[0036] Figure 7 It is the perspective view of the cylinder of the utility model;

[0037] Figure 8 It is the perspective view of the lifting sleeve of the utility model;

[0038] Figure 9 It is the perspective view of the bushing of the utility model;

[0039] Figure 10 It is a perspective view of the grinding seat of the utility model.

[0040] Among them:

[0041] 1, cylinder; 101, let go of the slot; 102, groove; 103, limit block; 104, limit part; 105, blanking passage; 106, internal thread; 107, connecting plate; 2, grinding seat; 201, first plane part; 3, connecting base; 4, receiving cup; 5, nut; 6, gasket; 601, strip hole; 602, limit plate; 7, grinding inner core; 701, limit hole; 8, through rod; 801, second plane part; 9, spring; 10, bushing; 1001, positioning hole; 11, lifting sleeve; 1101, positioning outer wall; 1102, baffle; 1103, external thread; 12, baffle ring; 13, adjusting knob; 1301, positioning plate; 1302, inner hole; 1303, annular groove; 14, spring plunger; 15, driving handle; 16, top cover. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0043] As Figures 1-10 shown, a rotatable adjustable grinder includes a cylinder 1, a grinding seat 2, a connecting base 3, a receiving cup 4, a lifting sleeve 11, a through rod 8, a grinding inner core 7, a spring 9, an adjusting knob 13 and the like. Among them:

[0044] The cylinder 1 has a blanking passage 105 inside for facilitating the passage of materials. In this example, the inner wall of the cylinder 1 has three connecting plates 107 evenly arranged and extending towards the center. The cylinder 1 has a cylindrical structure in the middle, and the blanking passage 105 is located between the positions of the adjacent two connecting plates 107.

[0045] The lifting sleeve 11 is rotatably and liftable mounted at the center upper position of the cylinder 1. Specifically, the outer wall of the lifting sleeve 11 has an external thread 1103 below, and the cylinder 1 has an internal thread 106 inside the cylindrical structure. The two are connected by screw threads to achieve cooperation, thereby realizing the rotatable and liftable effect of the lifting sleeve 11 relative to the cylinder 1. More specifically, the upper edge of the lifting sleeve 11 has an outwardly extending baffle 1102 to prevent the lifting sleeve 11 from being locked with the cylinder 1 due to excessive lowering.

[0046] A through rod 8 is arranged through the center hole of the lifting sleeve 11 and the cylinder 1, wherein the cross-sectional shape of the through rod 8 is a regular polygon, more specifically, in this example, the cross-sectional shape is a regular hexagon, and in addition, a regular quadrilateral, a regular pentagon, etc. can also be used, which is not limited here.

[0047] A grinding inner core 7 is installed at the lower end of the through rod 8, and in this example, the grinding inner core 7 is sleeved at the lower end of the through rod 8.

[0048] A spring 9 is sleeved between the grinding inner core 7 and the cylinder 1, and in this example, a bushing 10 is installed between the cylinder 1 and the spring 9, the bushing 10 is sleeved on the through rod 8 and is synchronously connected with the through rod 8, the bushing 10 has a positioning hole 1001 with the same cross-sectional shape as the through rod 8 inside, which is used to avoid direct contact between the spring 9 and the cylinder 1 during the rotation of the spring 9 relative to the cylinder 1, and has a friction-reducing protection effect on the spring 9 and the cylinder 1.

[0049] Among them, the outer wall of the through rod 8 is provided with a stop ring 12 with a diameter larger than the size of the center hole of the lifting sleeve 11, when the lifting sleeve 11 rises, it can drive the through rod 8 to move upwards, and when the lifting sleeve 11 moves downward, the spring 9 can make the through rod 8 and the grinding inner core 7 move downward.

[0050] Specifically, it also includes an adjusting knob 13 which is rotatably installed above the cylinder 1, the adjusting knob 13 is rotatably connected with the lifting sleeve 11, and the adjusting knob 13 and the lifting sleeve 11 can move relative to each other in the axial direction, and in this example, the inner hole 1302 of the adjusting knob 13 is a regular polygon hole, and the outer wall of the lifting sleeve 11 has a positioning outer wall 1101 matched with the inner hole 1302 of the adjusting knob 13, so that during the rotation of the adjusting knob 13, the lifting sleeve 11 can be driven to rotate, and the lifting sleeve 11 and the cylinder 1 in a fixed state are threadedly connected, which can also make the lifting sleeve 11 move up and down relative to the adjusting knob 13.

[0051] A first limiting structure for limiting excessive rotation of the adjusting knob 13 and a second limiting structure for limiting excessive movement of the adjusting knob 13 along the axial direction are arranged between the adjusting knob 13 and the cylinder 1.

[0052] Specifically, the first limiting structure comprises a positioning plate 1301 arranged below the adjusting knob 13 and extending downward, and a limiting portion 104 arranged on the barrel 1 and located in the movement path of the positioning plate 1301. In this example, a recessed accommodation groove 101 is arranged on the top of the two connecting plates 107 of the barrel 1 and located in the movement path of the positioning plate 1301. The limiting portion 104 is also arranged in a recessed manner. The depth of the accommodation groove 101 is greater than the depth of the limiting portion 104. During the rotation of the adjusting knob 13, the positioning plate 1301 can pass through the accommodation groove 101 without passing through the limiting portion 104. When the positioning plate 1301 rotates with the adjusting knob 13 and moves to the position of the limiting portion 104, the positioning plate 1301 can be in contact with the limiting portion 104, thereby limiting the rotation of the adjusting knob 13 and preventing the adjusting knob 13 from rotating excessively.

[0053] Specifically, the second limiting structure comprises an annular groove 1303 arranged on the outer wall of the adjusting knob 13, and a limiting block 103 arranged on the inner wall of the barrel 1 and capable of being accommodated in the annular groove 1303. Since the lifting sleeve 11 can move up and down, the annular groove 1303 and the limiting block 103 are arranged to avoid excessive friction between the lifting sleeve 11 and the adjusting knob 13, thereby preventing the adjusting knob 13 from moving up and down and achieving axial limiting of the adjusting knob 13.

[0054] Specifically, at least one spring plunger 14 is arranged in the circumferential direction of the adjusting knob 13, and grooves 102 matched with the spring plungers 14 are uniformly distributed on the inner wall of the barrel 1. The steel ball end of the spring plunger 14 can abut against the groove 102, so that the user can perceive the rotation position of the adjusting knob 13 during the rotation of the adjusting knob 13, thereby enhancing the operation accuracy and control lever and improving the operation feeling. Furthermore, in this example, a scale is arranged above the outer wall of the barrel 1, and an indicating mark is arranged on the outer wall of the adjusting knob 13, so that the user can check the rotation position of the adjusting knob 13, thereby improving the rotation accuracy of the adjusting knob 13.

[0055] Specifically, the top end of the through rod 8 is provided with a top cover 16 capable of moving axially relative to the through rod 8, and the driving handle 15 is arranged on the top cover 16. The user can rotate the driving handle 15 to drive the top cover 16 to rotate. The cross-sectional shape of the center hole of the top cover 16 is consistent with the cross-sectional shape of the through rod 8, so that the through rod 8 can be driven to rotate.

[0056] Specifically, the lower end of the through rod 8 is provided with a gasket 6 connected with the through rod 8 in a synchronous rotation mode, wherein the central hole of the gasket 6 is a strip-shaped hole 601, the outer wall of the threaded end of the lower end of the through rod 8 is provided with a second flat portion 801 arranged symmetrically, the threaded end penetrates through the strip-shaped hole 601, so that the through rod 8 and the gasket 6 can rotate synchronously, the edge of the gasket 6 is provided with a limiting plate 602 bent upward, the limiting plate 602 can be inserted into a limiting hole 701 arranged at the bottom of the grinding inner core 7, the limiting hole 701 is arranged at an eccentric position of the grinding inner core 7, so as to prevent the grinding inner core 7 from rotating relative to the through rod 8, and the nut 5 is screwed on the lower end of the through rod 8, when the through rod 8 rotates, the strip-shaped hole 601 can drive the grinding inner core 7 to rotate.

[0057] Specifically, it further comprises:

[0058] The connecting base 3 is fixed at the lower end of the cylinder body 1.

[0059] The grinding seat 2 is fixed between the cylinder body 1 and the connecting base 3, the grinding inner core 7 is located at the center of the grinding seat 2, a grinding cavity is formed between the grinding inner core 7 and the grinding seat 2, the grinding cavity is connected with the discharging channel 105 in the cylinder body 1, the outer wall of the grinding seat 2 is provided with a first flat portion 201, the lower cross-sectional shape of the inner wall of the cylinder body 1 is the same as the cross-sectional shape of the outer wall of the grinding seat 2, so as to prevent the relative rotation between the grinding seat 2 and the cylinder body 1, in addition, the upper end and the lower end of the grinding seat 2 are respectively limited by the cylinder body 1 and the connecting base 3, so as to realize the fixed installation effect of the grinding seat 2 in the cylinder body 1.

[0060] The receiving cup 4 is detachably connected at the lower end of the connecting base 3, in this case, the receiving cup 4 and the connecting base 3 are connected in a threaded mode, so as to facilitate the installation and dismounting of the receiving cup 4, and the receiving cup 4 is made of a material with a transparent effect, for example, glass material, epoxy resin, polyethylene terephthalate, etc., which mainly facilitates the user to observe the state of the coffee powder when grinding coffee.

[0061] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotatably adjustable grinder characterized by, The device comprises: a barrel (1) having a discharging channel (105) inside for facilitating the passing of materials; a lifting sleeve (11) rotatably and liftablely installed at a position above the center of the barrel (1); a through rod (8) penetratingly arranged at the center hole of the barrel (1) and the lifting sleeve (11); a grinding inner core (7) installed at the lower end of the through rod (8); a spring (9) sleeved between the grinding inner core (7) and the barrel (1); wherein the outer wall of the through rod (8) is provided with a stop ring (12) having a diameter larger than the size of the center hole of the lifting sleeve (11), when the lifting sleeve (11) is lifted, the through rod (8) can be driven to move upward, and when the lifting sleeve (11) is lowered, the through rod (8) and the grinding inner core (7) can be driven to move downward by the elastic force of the spring (9).

2. A rotatably adjustable grinder according to claim 1, wherein, Further comprising an adjusting knob (13) rotatably installed above the barrel (1), the adjusting knob (13) is rotatably connected with the lifting sleeve (11), and the adjusting knob (13) and the lifting sleeve (11) can relatively move in the axial direction; a first limiting structure for limiting the excessive rotation of the adjusting knob (13) is arranged between the adjusting knob (13) and the barrel (1), and a second limiting structure for limiting the excessive movement of the adjusting knob (13) in the axial direction is arranged.

3. A rotatably adjustable grinder according to claim 2, wherein, The first limiting structure comprises a positioning plate (1301) arranged at the lower end of the adjusting knob (13) and extending downward, and a limiting portion (104) arranged at a position on the barrel (1) and in the movement path of the positioning plate (1301), when the positioning plate (1301) rotates with the adjusting knob (13) and moves to the position of the limiting portion (104), the positioning plate (1301) can be in contact with the limiting portion (104), thereby limiting the rotation of the adjusting knob (13).

4. A rotatably adjustable grinder according to claim 2, wherein, The second limiting structure comprises an annular groove (1303) arranged at a position on the outer wall of the adjusting knob (13), and a limiting block (103) arranged at a position on the inner wall of the barrel (1) and capable of being arranged in the annular groove (1303).

5. A rotatably adjustable grinder according to claim 2, wherein, At least one spring plunger (14) is arranged in the circumferential direction of the adjusting knob (13), and concave grooves (102) matched with the spring plungers (14) are uniformly distributed at a position on the inner wall of the barrel (1), and the steel ball end of the spring plunger (14) can abut against the concave groove (102).

6. A rotatably adjustable grinder according to claim 1, wherein, A top cover (16) capable of moving axially relative to the through rod (8) is arranged at the top end of the through rod (8), and a driving handle (15) is arranged on the top cover (16).

7. A rotatably adjustable grinder according to claim 1, wherein, A bushing (10) is arranged between the barrel (1) and the spring (9), and the bushing (10) is sleeved on the through rod (8) and synchronously connected with the through rod (8).

8. A rotatably adjustable grinder according to claim 1, wherein, A gasket (6) synchronously connected with the through rod (8) is arranged at the lower end of the through rod (8), the edge of the gasket (6) is provided with an upwardly bent limiting plate (602), the limiting plate (602) can be inserted into a limiting hole (701) arranged at the bottom of the grinding inner core (7) to prevent the grinding inner core (7) from rotating relative to the through rod (8), and a nut (5) is threadedly connected at the lower end of the through rod (8).

9. A rotatably adjustable grinder according to any one of claims 1-8, characterized in that Further comprising: a connecting base (3) fixed at the lower end of the barrel (1). The grinding seat (2) is fixed between the barrel (1) and the connecting base (3), and the grinding inner core (7) is located at the center of the grinding seat (2), and the grinding cavity is formed between the grinding inner core (7) and the grinding seat (2), and the grinding cavity is communicated with the discharging channel (105) in the barrel (1); The material receiving cup (4) is detachably connected to the lower end of the connecting base (3).

10. A rotatably adjustable grinder according to claim 9, wherein, The material receiving cup (4) is made of a material with a transparent effect.

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