End cover connecting structure of food material grinder

Abstract

The utility model provides an end cover connecting structure of a food material grinder, which comprises a middle column, a first ring groove, a second ring groove, a connecting piece and a connecting piece, and is characterized in that the outer wall of one end of the middle column is provided with a first ring groove; the positioning base is arranged at the end of the middle column in a sleeving mode and is in sliding connection with the middle column, a plurality of through holes are formed in the circumferential direction of the positioning base, and when the positioning base slides on the middle column, the through holes can move to the positions flush with the first ring groove; the limiting steel ball is mounted in the through hole and is flush with the position of the first ring groove in the through hole; the top cover is reasonable in design structure, the limiting steel ball can move between the first annular groove and the second annular groove by controlling the position of the button, and therefore the opening and locking effects of the top cover can be achieved, the problems that cover opening and closing are tedious and the top cover is prone to being opened due to a traditional thread structure and a traditional buckle structure are solved, and practicability is high. The cover opening operation is simple, and the structure is stable when the cover is closed; and the bottom cover is limited by the spring plunger, so that the device has the advantages of simplicity in operation and stable structure.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to an end - cover connection structure of a food grinder. Background Art

[0002] A food grinder is a machine used to grind food into powders of different finenesses to adapt to different food brewing methods. For example, the coffee grinder in the prior art. Currently, existing grinders usually have a top cover and a bottom cover. After opening the top cover, users can put food into the grinder. Then, covering the top cover on the grinder, the food can be ground. The bottom cover below is used to hold the food particles or food powder generated during grinding. Among them, the existing installation methods of the top cover and the bottom cover usually include the following. One is that the cover body is installed on the grinder by means of threaded connection. The other is that the cover body is connected to the grinder by means of a snap - fit structure. Both structures have certain defects in actual use. For threaded connection, the cover body needs to be rotated every time the cover is opened or closed, which has the problem of cumbersome operation. And for the snap - fit structure, there will be problems such as the cover body not being firmly installed due to plastic deformation, and also problems such as food particles spilling out due to excessive force when opening the bottom cover. In addition, whether it is a threaded structure or a snap - fit structure, when the thread or the snap is loose, shaking the grinder will cause the top cover to be opened, and there will also be problems of food spilling out. Summary of the Utility Model

[0003] The utility model provides an end - cover connection structure of a food grinder to solve the problem that the cover body of the existing grinder is prone to looseness and detachment due to structural design defects as mentioned in the above background art.

[0004] The technical solution of the utility model is realized as follows:

[0005] An end - cover connection structure of a food grinder includes:

[0006] A middle column, one end of which has a first annular groove recessed towards the center on the outer wall.

[0007] A positioning seat, which is sleeved on the end of the middle column and is slidably connected to the middle column. A number of through - holes are provided in its circumferential direction. When the positioning seat slides on the middle column, the through - holes can move to a position flush with the first annular groove.

[0008] A limiting steel ball, which is installed in the through - hole, and when the through - hole is flush with the first annular groove, the limiting steel ball can be placed in both the through - hole and the first annular groove at the same time, for realizing the axial positioning of the positioning seat and the middle column.

[0009] A button is sleeved outside the positioning seat and is slidably connected to the positioning seat. A second annular groove is provided at the inner wall position. When the button axially slides relative to the positioning seat, the second annular groove can be in a state flush with the through hole on the positioning seat, so that the limiting steel ball can be placed in the through hole and the second annular groove at the same time, for realizing the unlocking effect between the positioning seat and the middle column.

[0010] Preferably, it further includes:

[0011] A top cover, which is fixedly connected to the positioning seat, and the button is slidably connected to the center position of the top cover;

[0012] A spring, one end of which abuts against the lower end of the button and the other end abuts against the end face of the middle column, and is arranged to apply an upward acting force to the button, so that the button is in the upper limit position under the action of the spring. In this state, the second annular groove and the through hole on the positioning seat are in a mutually misaligned structure.

[0013] Preferably, it further includes:

[0014] A spring seat, with a hollow structure inside, is coaxially connected to the central hole at the upper end of the positioning seat, and the spring is installed inside the spring seat.

[0015] Preferably, the cross-sectional profile of the structure of the middle column end portion outside the first annular groove is arc-shaped, and there is a smooth transition between the arc-shaped profile and the first annular groove.

[0016] Preferably, the cross-sectional shape of the second annular groove is triangular.

[0017] Preferably, the number of through holes in the circumferential direction of the positioning seat is three, and they are evenly distributed around the center of the positioning seat.

[0018] Preferably, the through hole is a tapered hole, and the diameter dimension of the tapered hole gradually increases from the center of the positioning seat to the outer wall direction, and the minimum diameter of the tapered hole is smaller than the diameter of the limiting steel ball.

[0019] Preferably, it further includes: a cylinder body, and the middle column is rotatably connected to the center position of the cylinder body.

[0020] Preferably, it further includes:

[0021] A bottom cover, which is in a cup-shaped structure, has a cavity inside for containing food particles or food powder, and a plurality of spring plungers are installed at the outer wall position of its upper end, and the steel balls of the spring plungers radially protrude outward from the bottom cover;

[0022] A limiting groove is provided at the inner wall position of the lower end of the cylinder body;

[0023] Wherein, the steel balls of the spring plungers in the circumferential direction of the bottom cover can be placed in the limiting groove for connecting the bottom cover and the cylinder body.

[0024] Preferably, the number of the spring plungers is six, and they are evenly distributed around the center line of the bottom cover.

[0025] Adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0026] The present utility model has a reasonable design structure. By controlling the position of the button, the limit steel ball can move between the first annular groove and the second annular groove, so as to realize the opening and locking effects of the top cover, replacing the problems of cumbersome opening and closing of the cover and easy opening of the top cover caused by the traditional thread structure and snap structure. It has the characteristics of simple opening operation and stable structure when closing the cover; the bottom cover uses spring plungers to achieve limit, which also has the advantages of simple operation and stable structure. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 is a perspective view of the present utility model;

[0029] Figure 2 is an exploded view of the present utility model;

[0030] Figure 3 is a sectional view of the present utility model;

[0031] Figure 4 is a partial enlarged view of the top cover mounting structure of the present utility model;

[0032] Figure 5 is a partial enlarged view of the bottom cover mounting structure of the present utility model;

[0033] Figure 6 is a perspective view of the positioning seat of the present utility model;

[0034] Figure 7 is a three-dimensional sectional view of the positioning seat of the present utility model.

[0035] Wherein:

[0036] 1. Top cover; 2. Button; 201. Second annular groove; 3. Spring; 4. Spring seat; 5. Limit steel ball; 6. Positioning seat; 601. Through hole; 602. Polygonal hole; 7. Middle column; 701. First annular groove; 8. Cylinder; 9. Spring plunger; 10. Bottom cover. Detailed Embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the protection scope of the present utility model.

[0038] As Figures 1-7 shown, an end - cover connection structure of a food grinder includes:

[0039] A middle column 7, one end of the outer wall of which has a first annular groove 701 recessed towards the center. Specifically, the cross - sectional contour of the structure of the end of the middle column 7 outside the first annular groove 701 is arc - shaped, and the arc - shaped contour and the first annular groove 701 are smoothly transitioned, which is used to avoid jamming problems when the subsequent limiting steel ball 5 works.

[0040] It further includes a positioning seat 6, which is sleeved on the end of the middle column 7 and is slidably connected to the middle column 7. Specifically, the lower end of the central hole of the positioning seat 6 is a polygonal hole 602, and the upper end of the middle column 7 also has a polygonal column matching the polygonal hole 602. When the positioning seat 6 is sleeved on the middle column 7, the positioning seat 6 and the middle column 7 only have the degree of freedom of relative axial sliding and will not generate relative rotation.

[0041] Among them, a plurality of through - holes 601 are opened in the circumferential direction of the positioning seat 6. When the positioning seat 6 slides on the middle column 7, the through - holes 601 can move to a position flush with the first annular groove 701, which is used to realize the subsequent movement of the limiting steel ball 5 along the axis direction of the through - hole 601, achieving the effect of locking or unlocking.

[0042] It further includes a limiting steel ball 5, which is installed in the through - hole 601. When the through - hole 601 and the first annular groove 701 are in a flush position, the limiting steel ball 5 can be placed in both the through - hole 601 and the first annular groove 701 at the same time, which is used to realize the axial positioning of the positioning seat 6 and the middle column 7; that is, by using the limiting steel ball 5 being in both the through - hole 601 and the first annular groove 701 at the same time, the positioning seat 6 and the middle column 7 can be in a relatively static state, and this state is the locked state of the top cover 1.

[0043] It further includes a button 2, which is sleeved outside the positioning seat 6 and is slidably connected to the positioning seat 6. A second annular groove 201 is opened on its inner wall. When the button 2 slides axially relative to the positioning seat 6, the second annular groove 201 can be in a state flush with the through - hole 601 on the positioning seat 6, so that the limiting steel ball 5 can be placed in both the through - hole 601 and the second annular groove 201 at the same time, which is used to realize the unlocking effect of the positioning seat 6 and the middle column 7.

[0044] Among them, the button 2 has two functions. One is that the inner wall below the button 2 contacts the steel ball, so that the limiting steel ball 5 is located in the through hole 601 and the first annular groove 701, avoiding the problem of accidental unlocking caused by the limiting steel ball 5 detaching from the first annular groove 701. The other function is to achieve unlocking by using the second groove opened inside it. That is, when the second annular groove 201 is flush with the through hole 601, only by axially pulling the positioning seat 6 can the limiting steel ball 5 be detached from the first annular groove 701. At the same time, the limiting steel ball 5 will enter the second annular groove 201, realizing the unlocking of the positioning seat 6.

[0045] Specifically, it further includes:

[0046] The top cover 1 is fixedly connected to the positioning seat 6. The button 2 is slidably connected to the center of the top cover 1. More specifically, the top cover 1 and the positioning seat 6 are connected by a threaded connection. The outer wall of the button 2 has a step, which is smaller at the top and larger at the bottom, and the central hole of the top cover 1 also has a step, which can achieve the effect of limiting the highest point of the button 2.

[0047] The spring 3 has one end abutted against the lower end of the button 2 and the other end abutted against the end face of the middle column 7. It is set to apply an upward force to the button 2, so that the button 2 is in the upper limit position under the action of the spring 3. In this state, the second annular groove 201 and the through hole 601 on the positioning seat 6 are in a mutually misaligned structure.

[0048] More specifically, it further includes a spring seat 4 with a hollow structure inside. It is coaxially connected to the central hole at the upper end of the positioning seat 6, and the spring 3 is installed inside the spring seat 4. The spring seat 4 is mainly used to radially limit the spring 3 to prevent the spring 3 from tilting.

[0049] Specifically, the cross-sectional shape of the second annular groove 201 is triangular. The purpose is that when the first annular groove 701, the second annular groove 201, and the through hole 601 are in the same horizontal plane and the top cover 1 is about to be locked, the steel ball can move from the second annular groove 201 with a triangular cross-section to the direction of the first annular groove 701 under the action of its own gravity, thereby realizing the relative locking of the positioning seat 6 and the middle column 7.

[0050] Specifically, the number of through holes 601 in the circumferential direction of the positioning seat 6 is three, and they are evenly distributed around the center of the positioning seat 6. More specifically, the through hole 601 is a tapered hole, and the diameter size of the tapered hole gradually increases from the center of the positioning seat 6 to the outer wall direction, and the minimum diameter of the tapered hole is smaller than the diameter of the limiting steel ball 5. Such a setting is to prevent the limiting steel ball 5 from falling off the positioning seat 6 towards its center direction after the top cover 1 is removed from the middle column 7, thus preventing the problem of the limiting steel ball 5 falling.

[0051] Specifically, it further includes a cylinder body 8. The middle column 7 is rotatably connected to the central position of the cylinder body 8. Among them, the middle column 7 is connected to the inside of the cylinder body 8 by bearings. The cylinder body 8 is a through structure, and a grinding device for food ingredients is installed below it. The grinding device is a conventional design in the prior art and will not be elaborated here.

[0052] Specifically, it further includes a bottom cover 10, which is in a cup shape and has a cavity inside for containing food ingredient particles or food ingredient powder. A number of spring plungers 9 are installed at the outer wall position of its upper end, and the steel balls of the spring plungers 9 radially extend outward from the bottom cover 10; a limiting groove is provided at the inner wall position of the lower end of the cylinder body 8; among them, the steel balls of the spring plungers 9 in the circumferential direction of the bottom cover 10 can be placed in the limiting groove for the connection between the bottom cover 10 and the cylinder body 8. Moreover, the number of the spring plungers 9 is six and they are evenly distributed around the center line of the bottom cover 10; using the spring plungers 9 as the limiting parts for the connection between the bottom cover 10 and the cylinder body 8 has the characteristics of convenient installation of the bottom cover 10 on the one hand, replacing the cumbersome disassembly and assembly problems brought by the traditional threaded connection structure, and on the other hand, it also has the characteristics of firm installation.

[0053] This food ingredient grinder is mainly used for the connection between the top cover 1 and the bottom cover 10 and the grinding machine cylinder body 8 respectively. When the top cover 1 is disassembled, by pressing the button 2, the button 2 moves downward. At this time, the second annular groove 201 can move to the position where the limiting steel ball 5 is located. The user can pull the top cover 1 outward to move the limiting steel ball 5 to the second groove, and the disassembly of the top cover 1 is completed; when the top cover 1 is locked, since the limiting steel ball 5 is in the through hole 601 and the first annular groove 701, the relative fixation between the positioning seat 6 and the middle column 7 can be realized. Without pressing the button 2, the top cover 1 will not be separated from the grinding machine, and the connection is stable, avoiding the phenomenon that the top cover 1 falls off when the grinding machine is shaken.

[0054] 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. An end - cover connection structure of a food grinder, characterized in that, Including: A middle column (7), one end of which has a first annular groove (701) recessed towards the center on the outer wall position; A positioning seat (6), which is sleeved on the end of the middle column (7) and is slidably connected to the middle column (7). A plurality of through holes (601) are provided in its circumferential direction. When the positioning seat (6) slides on the middle column (7), the through holes (601) can move to a position flush with the first annular groove (701); A limiting steel ball (5), which is installed in the through hole (601), and when the through hole (601) is flush with the first annular groove (701), the limiting steel ball (5) can be placed in both the through hole (601) and the first annular groove (701) simultaneously, for realizing the axial positioning of the positioning seat (6) and the middle column (7); A button (2), which is sleeved outside the positioning seat (6) and is slidably connected to the positioning seat (6). A second annular groove (201) is provided on its inner wall position. When the button (2) axially slides relative to the positioning seat (6), the second annular groove (201) can be in a state flush with the through hole (601) on the positioning seat (6), so that the limiting steel ball (5) can be placed in both the through hole (601) and the second annular groove (201) simultaneously, for realizing the unlocking effect of the positioning seat (6) and the middle column (7).

2. The end - cover connection structure of a food grinder according to claim 1, characterized in that, Also including: A top cover (1), which is fixedly connected to the positioning seat (6), and the button (2) is slidably connected to the center position of the top cover (1); A spring (3), one end of which abuts against the lower end of the button (2) and the other end abuts against the end face of the middle column (7), and is arranged to apply an upward acting force to the button (2), so that the button (2) is in the upper limit position under the action of the spring (3). In this state, the second annular groove (201) and the through hole (601) on the positioning seat (6) are in a mutually misaligned structure.

3. The end - cover connection structure of a food grinder according to claim 2, characterized in that, Also including: A spring seat (4), with a hollow structure inside, is coaxially connected to the central hole at the upper end of the positioning seat (6), and the spring (3) is installed inside the spring seat (4).

4. The end - cap connection structure of a food grinder according to claim 1, characterized in that, The cross-sectional profile of the structure of the middle column (7) at the end and outside the first annular groove (701) is arc-shaped, and there is a smooth transition between the arc-shaped profile and the first annular groove (701).

5. The end - cap connection structure of a food grinder according to claim 1, characterized in that, The cross-sectional shape of the second annular groove (201) is triangular.

6. The end - cover connection structure of a food grinder according to claim 1, characterized in that, The number of through holes (601) in the circumferential direction of the positioning seat (6) is three, and they are evenly distributed around the center of the positioning seat (6).

7. The end - cap connection structure of a food grinder according to claim 6, characterized in that, The through hole (601) is a tapered hole, and the diameter size of the tapered hole gradually increases from the center of the positioning seat (6) to the outer wall direction, and the minimum diameter of the tapered hole is smaller than the diameter of the limiting steel ball (5).

8. The end - cap connection structure of a food grinder according to claim 1, characterized in that, Also including: A cylinder body (8), and the middle column (7) is rotatably connected to the center position of the cylinder body (8).

9. The end - cover connection structure of a food grinder according to claim 8, characterized in that, Also including: A bottom cover (10), which is in a cup-shaped structure and has a cavity inside for containing food particles or food powder. A plurality of spring plungers (9) are installed on the outer wall position at its upper end, and the steel balls of the spring plungers (9) radially protrude outwards from the bottom cover (10); A limiting groove is provided at the inner wall position at the lower end of the cylinder body (8); Wherein, the steel balls of the spring plungers (9) in the circumferential direction of the bottom cover (10) can be placed in the limiting groove, for the connection of the bottom cover (10) and the cylinder body (8).

10. The end - cap connection structure of a food grinder according to claim 9, characterized in that, The number of the spring plungers (9) is six, and they are evenly distributed around the center line of the bottom cover (10).

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