Portable grinder

Abstract

The utility model relates to a portable grinder. The portable grinder comprises a driving unit, a first transmission unit and a grinding unit, the grinding machine has the advantages that the first transmission unit is arranged between the driving unit and the grinding unit, the rotating speed of the grinding unit can be increased by multiple times under gear speed-up transmission, and the grinding speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of seed sample grinding equipment, in particular to a portable grinder. Background Art

[0002] Pathogen detection is an important tool for assessing seed health and preventing disease transmission. By sampling and analyzing the surface or interior of seeds, we can detect the presence of pathogens such as bacteria, fungi, and viruses. Common methods include bacterial smears, PCR, and enzyme-linked immunosorbent assays. These methods not only assess the number and types of pathogens present in seeds but also determine whether disinfection is necessary.

[0003] A Chinese invention patent (CN107831054A) discloses a sample grinding device for biological extraction, comprising a bracket, a support plate, a first horizontal plate, a first vertical plate, a grinding mechanism, etc.; a support plate is provided between the tops of the inner sides of the left and right brackets, a first horizontal plate is provided between the middle and lower parts of the inner sides of the left and right brackets, a first vertical plate is provided on the front side of the support plate, a grinding mechanism is provided on the first vertical plate, a pressing block is connected to the movable unit of the grinding mechanism, and a movable mechanism is provided on the first horizontal plate. However, although this device can grind and sample biological samples, the pressing block easily causes the unpressed biological samples to move during grinding, making some biological samples difficult to grind and reducing work efficiency; in addition, the device also has problems such as small grinding volume and insufficient grinding torque.

[0004] Currently, no effective solutions have been proposed for the problems of low grinding efficiency, small grinding volume, insufficient grinding torque, etc. in related technologies. Utility Model Content

[0005] The purpose of the utility model is to provide a portable grinder to address the deficiencies in the prior art, so as to solve the problems of low grinding efficiency, small grinding volume, insufficient grinding torque, etc. existing in the related art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides a portable grinder, comprising:

[0008] Drive unit;

[0009] a first transmission unit, wherein a first end of the first transmission unit is in transmission connection with the driving unit, a rotation direction of the first transmission unit being perpendicular to a rotation direction of the driving unit, and the first transmission unit is configured to rotate under the action of the driving unit;

[0010] a grinding unit, a first end of the grinding unit being in driving connection with a second end of the first transmission unit, for rotating in a horizontal direction under the action of the first transmission unit to grind a sample to be ground;

[0011] wherein a transmission ratio of the driving unit to the first transmission unit is > 1.

[0012] In some embodiments thereof, the driving unit comprises:

[0013] a control element;

[0014] a first connecting element, the first connecting element being arranged at an end of the control element;

[0015] a first rotating shaft element, a first end of the first rotating shaft element being connected with the first connecting element on the control element, a rotating direction of the first rotating shaft element being perpendicular to a rotating direction of the first transmission unit, for rotating under the action of the control element;

[0016] a first transmission element, the first transmission element being arranged at a second end of the first rotating shaft element and being in driving connection with the first transmission unit, for driving the first transmission unit to rotate under the action of the first rotating shaft element.

[0017] In some embodiments thereof, the first transmission unit comprises:

[0018] a second rotating shaft element, a rotating direction of the second rotating shaft element being perpendicular to a rotating direction of the driving unit;

[0019] a second transmission element, the second transmission element being arranged at a first end of the second rotating shaft element and being in driving connection with the driving unit, for driving the second rotating shaft element to rotate under the action of the driving unit;

[0020] a third transmission element, the third transmission element being arranged at a second end of the second rotating shaft element and being in driving connection with the grinding unit, for driving the grinding unit to rotate in a horizontal direction under the action of the second rotating shaft element.

[0021] In some embodiments thereof, the grinding unit comprises:

[0022] a third rotating shaft element, a first end of the third rotating shaft element being connected with the first transmission unit;

[0023] a fourth transmission element, the fourth transmission element being arranged at the first end of the third rotating shaft element and being in driving connection with the first transmission unit, for driving the third rotating shaft element to rotate under the action of the first transmission unit;

[0024] a grinding element movably arranged at the second end of the third rotating shaft element for rotating under the action of the third rotating shaft element.

[0025] In some embodiments, further comprising:

[0026] a second transmission unit, a first end of the second transmission unit being in transmission connection with the driving unit, a rotating direction of the second transmission unit being parallel to a rotating direction of the driving unit, the second transmission unit being arranged for rotating under the action of the driving unit;

[0027] a pressing unit, a first end of the pressing unit being connected with the second transmission unit, a second end of the pressing unit being in abutment with the grinding unit, the pressing unit being arranged for reciprocating the grinding unit along a vertical direction under the action of the second transmission unit.

[0028] In some embodiments, the driving unit further comprises:

[0029] a fifth transmission element, the fifth transmission element being arranged at a second end of the driving unit and being in transmission connection with the second transmission unit, the fifth transmission element being arranged for rotating the second transmission unit under the action of the driving unit.

[0030] In some embodiments, the second transmission unit comprises:

[0031] a sixth transmission element, the sixth transmission element being in transmission connection with the driving unit, the sixth transmission element being arranged for rotating under the action of the driving unit;

[0032] a fourth rotating shaft element, a first end of the fourth rotating shaft element being connected with the sixth transmission element, the fourth rotating shaft element being arranged for rotating under the action of the sixth transmission element;

[0033] a fifth rotating shaft element, the fifth rotating shaft element being eccentrically arranged at a second end of the fourth rotating shaft element and being connected with a first end of the pressing unit, the fifth rotating shaft element being arranged for reciprocating the pressing unit along a vertical direction under the action of the fourth rotating shaft element.

[0034] In some embodiments, the pressing unit comprises:

[0035] a connecting rod element, a first end of the connecting rod element being connected with the second transmission unit, the connecting rod element being arranged for reciprocating along a vertical direction under the action of the second transmission unit;

[0036] a piston element, the piston element being arranged at a second end of the connecting rod element, the piston element being arranged for reciprocating along a vertical direction under the action of the connecting rod element;

[0037] a first pressing element, disposed at a second end of the piston element, for reciprocating vertically under the action of the piston element;

[0038] a second pressing element, movably disposed inside the grinding unit, a first end of the second pressing element abutting against a second end of the first pressing element, for reciprocating vertically under the action of the first pressing element.

[0039] In some embodiments thereof, further comprising:

[0040] a housing unit, an inside of the housing unit being provided with an output end of the driving unit, the first transmission unit, the second transmission unit, the pressing unit, and a first end of the grinding unit, an outside of the housing unit being provided with a control end of the driving unit and a second end of the grinding unit.

[0041] In some embodiments thereof, the housing unit comprises:

[0042] a first housing element;

[0043] a second housing element, connected with the first housing element, and the first housing element and the second housing element having cavities inside for mounting the driving unit, the first transmission unit, the second transmission unit, the pressing unit, and the grinding unit;

[0044] a support element, disposed at a bottom of the first housing element and the second housing element, for supporting the first housing element and the second housing element.

[0045] In some embodiments thereof, further comprising:

[0046] a storage unit, detachably disposed at a bottom of the housing unit, an inside of the storage unit being movably provided with a second end of the grinding unit, for accommodating material to be ground.

[0047] In some embodiments thereof, the storage unit comprises:

[0048] a storage element, detachably disposed at a bottom of the housing unit, an inside of the storage element being movably provided with a second end of the grinding unit, for accommodating material to be ground;

[0049] a second locking element, disposed at a top of the storage element, and detachably connected with the housing unit.

[0050] The utility model discloses the above technical scheme, compared with prior art, has the following technical effects:

[0051] The utility model discloses a portable grinder, through setting up first drive unit between drive unit and grinding unit, through gear speed increasing drive, can promote the rotating speed of grinding unit several times, promotes the grinding speed. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 It is internal structure schematic diagram (one) of portable grinder according to the utility model embodiment;

[0053] Figure 2 It is the explosion schematic diagram (one) of drive unit according to the utility model embodiment;

[0054] Figure 3 It is the explosion schematic diagram of first drive unit according to the utility model embodiment;

[0055] Figure 4 It is the explosion schematic diagram of grinding unit according to the utility model embodiment;

[0056] Figure 5 It is Figure 4 The enlarged view of partial A mainly shows the structure of third rotating shaft element;

[0057] Figure 6 It is internal structure schematic diagram (two) of portable grinder according to the utility model embodiment;

[0058] Figure 7 It is the explosion schematic diagram (two) of drive unit according to the utility model embodiment;

[0059] Figure 8 It is the schematic diagram of second drive unit and pressure unit according to the utility model embodiment;

[0060] Figure 9 It is the explosion schematic diagram of second drive unit according to the utility model embodiment;

[0061] Figure 10 It is the explosion schematic diagram of pressure unit according to the utility model embodiment;

[0062] Figure 11 It is external structure schematic diagram of portable grinder according to the utility model embodiment;

[0063] Figure 12 It is the schematic diagram of shell unit according to the utility model embodiment;

[0064] Figure 13 It is the schematic diagram of storage unit according to the utility model embodiment.

[0065] wherein the reference signs are: 100, driving unit; 101, operating element; 102, first connecting element; 103, first rotating shaft element; 104, first transmission element; 105, first locking element; 106, washer element; 107, first bearing element; 108, second bearing element; 109, first pin key element; 110, fifth transmission element;

[0066] 200, first transmission unit; 201, second rotating shaft element; 202, second transmission element; 203, third transmission element; 204, first shaft sleeve element; 205, third bearing element; 206, first retainer ring element; 207, second pin key element;

[0067] 300, grinding unit; 301, third rotating shaft element; 302, fourth transmission element; 303, first fixing element; 304, fourth bearing element; 305, limiting element; 306, second retainer ring element; 307, locking ring element; 308, grinding element; 309, second connecting element;

[0068] 400, second transmission unit; 401, sixth transmission element; 402, fourth rotating shaft element; 403, fifth rotating shaft element; 404, fifth bearing element; 405, sixth bearing element; 406, second shaft sleeve element; 407, third retainer ring element; 408, third pin key element;

[0069] 500, pressing unit; 501, connecting rod element; 502, piston element; 503, first pressing element; 504, second pressing element; 505, piston sleeve element; 506, first reset element; 507, first protection element; 508, third connecting element; 509, second fixing element; 510, second protection element; 511, fourth retainer ring element; 512, fifth retainer ring element; 513, seventh bearing element; 514, second reset element; 515, fixed pad element;

[0070] 600, housing unit; 601, first housing element; 602, second housing element; 603, supporting element;

[0071] 700, storage unit; 701, storage element; 702, first flange element; 703, second locking element; 704, second flange element; 705, locking element. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely used to explain this application and are not intended to limit this application. Based on the embodiments provided in this application, all other embodiments obtained by those of ordinary skill in the art without making any creative efforts are within the scope of protection of this application.

[0073] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.

[0074] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.

[0075] Unless otherwise defined, technical terms and scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terms "a", "an", "one", "this", and similar referents in the context of describing the application are to be construed to be open-ended, referring to one or more than one, unless otherwise noted. The terms "including", "comprising", "having" and variations thereof in this application are meant to encompass the possibility of non-exclusive inclusion, such that processes, methods, systems, products, or apparatuses that comprise a list of steps or elements are not limited to only those steps or elements but can include other steps or elements not expressly listed or inherent to such processes, methods, systems, products, or apparatuses. The terms "connected", "coupled", and "coupling" in this application are not limited to direct or physical connections, but can include indirect connections, unless otherwise noted. The term "plurality" means two or more. The term "and / or" describes associated objects in association relationships, which means that there are three relationships, for example, "A and / or B" can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects. The terms "first", "second", "third", and the like in this application are only to distinguish similar objects, and do not represent a specific order of the objects.

[0076] Embodiment 1

[0077] As shown in a schematic embodiment of the utility model, Figure 1 A portable grinder includes a driving unit 100, a first transmission unit 200 and a grinding unit 300. Wherein, the first end of the first transmission unit 200 is in transmission connection with the driving unit 100, the rotation direction of the first transmission unit 200 is perpendicular to the rotation direction of the driving unit 100, and the first transmission unit 200 is used to rotate under the action of the driving unit 100; the first end of the grinding unit 300 is in transmission connection with the second end of the first transmission unit 200, and the grinding unit 300 is used to rotate in the horizontal direction under the action of the first transmission unit 200 to grind the sample to be ground; wherein, the transmission ratio of the driving unit 100 and the first transmission unit 200 is greater than 1.

[0078] It should be noted that the transmission ratio of the first transmission unit 200 and the driving unit 100 is greater than 1. That is, the first transmission unit 200 rotates more than 1 circle per revolution of the driving unit 100. Generally, the transmission ratio of the first transmission unit 200 and the driving unit 100 is an integer. The first transmission unit 200 rotates at least 2 circles per revolution of the driving unit 100.

[0079] Preferably, the transmission ratio between the first transmission unit 200 and the drive unit 100 is ∈[2, 10]. More preferably, the transmission ratio between the first transmission unit 200 and the drive unit 100 is ∈[2, 8]. More preferably, the transmission ratio between the first transmission unit 200 and the drive unit 100 is ∈[3, 7]. More preferably, the transmission ratio between the first transmission unit 200 and the drive unit 100 is ∈[4, 6]. More preferably, the transmission ratio between the first transmission unit 200 and the drive unit 100 is 5.

[0080] It should be noted that the transmission ratio between the grinding unit 300 and the first transmission unit 200 is 1. That is, the grinding unit 300 rotates once for every rotation of the first transmission unit 200 .

[0081] In one preferred embodiment, the rotation speed of the grinding unit 300 can be increased by 5 times through the gear speed-increasing transmission of the first transmission unit 200 .

[0082] like Figure 2 As shown, the drive unit 100 includes a control element 101, a first connecting element 102, a first rotating shaft element 103, and a first transmission element 104. The first connecting element 102 is disposed at the end of the control element 101; the first end of the first rotating shaft element 103 is connected to the first connecting element 102 on the control element 101. The rotation direction of the first rotating shaft element 103 is perpendicular to the rotation direction of the first transmission unit 200, and is configured to rotate under the action of the control element 101; the first transmission element 104 is disposed at the second end of the first rotating shaft element 103 and is in transmission connection with the first transmission unit 200, and is configured to drive the first transmission unit 200 to rotate under the action of the first rotating shaft element 103.

[0083] Specifically, the control element 101 is connected to a first end of the first rotation axis element 103 via the first connection element 102 , and the rotation of the control element 101 can drive the rotation of the first rotation axis element 103 .

[0084] In some embodiments, the control element 101 includes but is not limited to a handle.

[0085] Specifically, the first connecting element 102 is provided at one end of the operating element 101 connected to the first rotating shaft element 103 , and the first connecting element 102 is provided in a square hole structure.

[0086] It should be noted that the size of the first connecting element 102 is adapted to the size of the first rotating shaft element 103. It should be understood that the size of the first connecting element 102 is the same as the size of the first rotating shaft element 103.

[0087] Specifically, the first end of the first rotating shaft element 103 is in the shape of a square rod, and the first end of the first rotating shaft element 103 extends into the first connecting element 102 and is in transmission connection with the control element 101, and can rotate under the driving of the control element 101. It should be noted that the first end and the second end of the first rotating shaft element 103 are the two ends in the length direction thereof.

[0088] In some embodiments, the first rotating shaft element 103 includes but is not limited to a metal shaft.

[0089] In addition, the first rotating shaft element 103 further includes a first key groove. The first key groove is provided on the first rotating shaft element 103 and is used for installing a pin key to fix the first transmission element 104 sleeved on the first rotating shaft element 103.

[0090] It should be noted that the first key groove is in the shape of a waist-shaped groove, and the length direction of the first key groove is the same as the length direction of the first rotating shaft element 103.

[0091] Specifically, the first transmission element 104 is coaxially sleeved on the first rotating shaft element 103 and is in meshing connection with the first transmission unit 200.

[0092] In some embodiments, the first transmission element 104 includes but is not limited to a bevel gear, a bevel gear.

[0093] Further, the driving unit 100 further includes a first locking element 105. The first locking element 105 is connected with the first connecting element 102 and the first end of the first rotating shaft element 103, respectively.

[0094] Specifically, the first locking element 105 passes through the control element 101 and is in threaded connection with the control element 101, and the end of the first locking element 105 extends into the interior of the first rotating shaft element 103 and is in threaded connection with the first rotating shaft element 103.

[0095] In some embodiments, the first locking element 105 includes but is not limited to a bolt, a disc head screw.

[0096] Further, the driving unit 100 further includes a gasket element 106. The gasket element 106 is arranged between the first locking element 105 and the first end of the first rotating shaft element 103.

[0097] Specifically, the gasket element 106 is in the shape of a round sheet, and the center of the gasket element 106 has a round hole through which the first locking element 105 passes. It should be noted that the gasket element 106 can prevent the first locking element 105 from being loose in connection with the first rotating shaft element 103.

[0098] In some embodiments, the gasket element 106 includes, but is not limited to, a grommet.

[0099] Further, the driving unit 100 further comprises a first bearing element 107. The first bearing element 107 is coaxially arranged at the first end of the first rotating shaft element 103.

[0100] Specifically, the first bearing element 107 is coaxially connected with the first end of the first rotating shaft element 103, and the inner ring of the first bearing element 107 is fixedly connected with the first rotating shaft element 103, and the outer ring of the first bearing element 107 is fixedly connected with the housing.

[0101] In some embodiments, the first bearing element 107 includes, but is not limited to, a deep groove ball bearing.

[0102] Further, the driving unit 100 further comprises a second bearing element 108. The second bearing element 108 is coaxially arranged at the second end of the first rotating shaft element 103.

[0103] Specifically, the second bearing element 108 is coaxially connected with the second end of the first rotating shaft element 103, and the inner ring of the second bearing element 108 is fixedly connected with the first rotating shaft element 103, and the outer ring of the second bearing element 108 is fixedly connected with the housing.

[0104] In some embodiments, the second bearing element 108 includes, but is not limited to, a deep groove ball bearing.

[0105] In addition, the driving unit 100 further comprises a first pin key element 109. The first pin key element 109 is arranged on the first rotating shaft element 103 and used for locking the first transmission element 104.

[0106] It should be noted that the first pin key element 109 is arranged in a waist-shaped block structure, and the first pin key element 109 is installed in a first key groove on the first rotating shaft element 103, and is used for fixing the first transmission element 104 sleeved on the first rotating shaft element 103, so that the first transmission element 104 sleeved on the first rotating shaft element 103 can rotate with the first rotating shaft element 103.

[0107] In addition, the inner wall of the first transmission element 104 has a groove, and the groove can be clamped with the first pin key element 109, so that the first transmission element 104 can rotate with the first rotating shaft element 103

[0108] In some embodiments, the first pin key element 109 includes, but is not limited to, a metal key.

[0109] As Figure 3As shown, the first transmission unit 200 comprises a second rotating shaft element 201, a second transmission element 202 and a third transmission element 203. The rotating direction of the second rotating shaft element 201 is perpendicular to the rotating direction of the driving unit 100. The second transmission element 202 is arranged at the first end of the second rotating shaft element 201 and is in transmission connection with the driving unit 100, for driving the second rotating shaft element 201 to rotate under the action of the driving unit 100. The third transmission element 203 is arranged at the second end of the second rotating shaft element 201 and is in transmission connection with the grinding unit 300, for driving the grinding unit 300 to rotate along the horizontal direction under the action of the second rotating shaft element 201.

[0110] Specifically, the first end of the second rotating shaft element 201 is coaxially connected with the second transmission element 202, the second end of the second rotating shaft element 201 is coaxially connected with the third transmission element 203, and the axial direction of the second rotating shaft element 201 is perpendicular to the circumferential direction of the first rotating shaft element 103. It should be noted that the first end and the second end of the second rotating shaft element 201 are the two ends in the length direction thereof.

[0111] In some embodiments, the second rotating shaft element 201 comprises but is not limited to a metal shaft.

[0112] In addition, the second rotating shaft element 201 further comprises a second key groove. The second key groove is arranged on the second rotating shaft element 201 and is used for installing a pin key to fix the third transmission element 203 which is sleeved on the second rotating shaft element 201.

[0113] It should be noted that the second key groove is arranged in a waist-shaped groove structure, and the length direction of the second key groove is the same as the length direction of the second rotating shaft element 201.

[0114] Specifically, the second transmission element 202 is coaxially sleeved on the first end of the second rotating shaft element 201 and is coaxially connected with the second rotating shaft element 201 by welding, riveting or bolt fixing, etc., and the second transmission element 202 is in meshing connection with the first transmission element 104, that is, the first transmission element 104 can drive the second transmission element 202 to rotate, so that the second transmission element 202 drives the second rotating shaft element 201 to rotate.

[0115] The transmission ratio of the second transmission element 202 and the first transmission element 104 is ∈[1, 5]. More preferably, the transmission ratio of the second transmission element 202 and the first transmission element 104 is ∈[2, 4]. More preferably, the transmission ratio of the second transmission element 202 and the first transmission element 104 is 3.

[0116] In some embodiments, the second transmission element 202 comprises but is not limited to a bevel gear.

[0117] Specifically, the third transmission element 203 is coaxially sleeved on the second end of the second rotating shaft element 201, and the inner wall of the third transmission element 203 has a groove which can be embeddedly connected with the second pin key element 207, so that the third transmission element 203 can rotate with the second rotating shaft element 201.

[0118] In some embodiments, the third transmission element 203 includes but is not limited to a straight gear.

[0119] Further, the first transmission unit 200 further comprises a first shaft sleeve element 204. The first shaft sleeve element 204 is coaxially arranged with the second rotating shaft element 201.

[0120] Specifically, the first shaft sleeve element 204 is in a hollow sleeve structure, and is coaxially sleeved on the second rotating shaft element 201 and located between the second transmission element 202 and the third transmission element 203.

[0121] In some embodiments, the first shaft sleeve element 204 includes but is not limited to a shaft pad sleeve.

[0122] Further, the first transmission unit 200 further comprises at least one third bearing element 205. The third bearing element 205 is coaxially arranged with the second rotating shaft element 201.

[0123] Specifically, the third bearing element 205 is coaxially sleeved on the second rotating shaft element 201, and the outer ring of the third bearing element 205 is fixedly connected with the housing, and the inner ring of the third bearing element 205 is fixedly connected with the second rotating shaft element 201.

[0124] In some embodiments, the third bearing element 205 includes but is not limited to a deep groove ball bearing.

[0125] In the present embodiment, the number of the third bearing element 205 is 2, and the two third bearing elements 205 are arranged at intervals along the length direction of the second rotating shaft element 201, and are respectively located at the two ends of the first bearing element 107.

[0126] In some embodiments, the number of the third bearing element 205 is 1 or 3, and the number of the third bearing element 205 can be set according to actual needs, which is not limited here.

[0127] Further, the first transmission unit 200 further comprises a first retaining ring element 206. The first retaining ring element 206 is arranged at the second end of the second rotating shaft element 201.

[0128] Specifically, the first retaining ring element 206 is coaxially mounted at the second end of the second rotating shaft element 201, and the first retaining ring element 206 abuts against the second rotating transmission structure, for fixing the third transmission element 203.

[0129] In some embodiments, the first retaining ring element 206 includes but is not limited to a shaft spring retaining ring.

[0130] In addition, the second rotating shaft element 201 further comprises a second pin key element 207. The second pin key element 207 is arranged in the second pin key element 207 on the second rotating shaft element 201, for locking the third transmission element 203 sleeved on the second rotating shaft element 201.

[0131] Specifically, the second pin key element 207 is in the shape of a waist block, and the second pin key element 207 is mounted in the second key groove on the second rotating shaft element 201, for fixing the third transmission element 203 sleeved on the second rotating shaft element 201, so that the third transmission element 203 sleeved on the second rotating shaft element 201 can rotate with the second rotating shaft element 201.

[0132] In some embodiments, the second pin key element 207 includes but is not limited to a metal key.

[0133] As shown in Figure 4 and Figure 5 , the grinding unit 300 comprises a third rotating shaft element 301, a fourth transmission element 302 and a grinding element 308. The first end of the third rotating shaft element 301 is connected with the first transmission unit 200; the fourth transmission element 302 is arranged at the first end of the third rotating shaft element 301 and is in transmission connection with the first transmission unit 200, for driving the third rotating shaft element 301 to rotate under the action of the first transmission unit 200; the grinding element 308 is movably arranged at the second end of the third rotating shaft element 301, for rotating under the action of the third rotating shaft element 301.

[0134] Specifically, the third rotating shaft element 301 is in rotation connection with the shell, and the third rotating shaft element 301 is in the shape of a hollow shaft, and the inside of the larger diameter part of the third rotating shaft element 301 has a circular hole extending from the first end of the third rotating shaft element 301 to the variable diameter part of the third rotating shaft element 301, and the inside of the smaller diameter part of the third rotating shaft element 301 has a square hole in communication with the circular hole and extending to the second end of the third rotating shaft element 301. It should be noted that the first end and the second end of the third rotating shaft element 301 are respectively the two ends in the length direction thereof.

[0135] In some embodiments, the third rotating shaft element 301 includes but is not limited to a gear shaft.

[0136] Specifically, the fourth transmission element 302 is integrally formed at the first end of the third rotating shaft element 301, and the fourth transmission element 302 is in meshing connection with the third transmission element 203.

[0137] The transmission ratio of the fourth transmission element 302 and the third transmission element 203 is ∈[1, 5]. More preferably, the transmission ratio of the fourth transmission element 302 and the third transmission element 203 is ∈[2, 4]. More preferably, the transmission ratio of the fourth transmission element 302 and the third transmission element 203 is 2.

[0138] In some embodiments, the fourth transmission element 302 includes but is not limited to a spur gear.

[0139] Specifically, the grinding element 308 is in movable connection with the second end of the third rotating shaft element 301, and the grinding element 308 can rotate under the driving of the third rotating shaft element 301.

[0140] In some embodiments, the grinding element 308 includes but is not limited to a grinding head.

[0141] Further, the grinding unit 300 further comprises a first fixing element 303. The first fixing element 303 is coaxially arranged with the third rotating shaft element 301, and is used to fix the position of the third rotating shaft element 301.

[0142] Specifically, the first fixing element 303 is in a hollow cylindrical structure, and a first annular plate is formed on the outer side wall of the first end of the first fixing element 303. The first annular plate can be embedded in the shell, so as to realize the connection between the first fixing element 303 and the shell.

[0143] It should be noted that the first end and the second end of the first fixing element 303 are the two ends in the length direction thereof.

[0144] In some embodiments, the first fixing element 303 includes but is not limited to a fixing head.

[0145] Further, the grinding unit 300 further comprises at least one fourth bearing element 304. The fourth bearing element 304 is coaxially arranged on the third rotating shaft element 301.

[0146] Specifically, the fourth bearing element 304 is sleeved on the third rotating shaft element 301, and the fourth bearing element 304 rotationally connects the third rotating shaft element 301 and the first fixing element 303. The inner ring of the fourth bearing element 304 is fixedly connected with the third rotating shaft element 301, and the outer ring of the fourth bearing element 304 is fixedly connected with the first fixing element 303.

[0147] It should be noted that the number of fourth bearing elements 304 is 2, and one fourth bearing element 304 is sleeved on the larger diameter part of the third rotating shaft element 301, and the other fourth bearing element 304 is sleeved on the smaller diameter part of the third rotating shaft element 301 (that is, the sizes of the two fourth bearing elements 304 can be adapted to the diameter sizes of different parts of the third rotating shaft element 301).

[0148] In some embodiments, the fourth bearing element 304 includes but is not limited to a deep groove ball bearing.

[0149] Further, the grinding unit 300 further comprises a plurality of limiting elements 305. Among them, the plurality of limiting elements 305 are arranged at the second end of the third rotating shaft element 301 and abut against the first end of the grinding element 308.

[0150] Specifically, the third rotating shaft element 301 further comprises a ball groove. Among them, the ball groove is opened on the outer side wall of the second end of the third rotating shaft element 301 and communicates with the square hole in the third rotating shaft element 301, which is used to install the limiting element 305.

[0151] It should be noted that the number of ball grooves is 2, and the two ball grooves are symmetrically arranged on the third rotating shaft element 301.

[0152] Specifically, the limiting element 305 is installed in the ball groove on the third rotating shaft element 301, and the limiting element 305 is embeddedly connected with the grinding element 308, so as to realize the movable connection of the grinding element 308 and the third rotating shaft element 301, and further make the grinding element 308 can reciprocate in the third rotating shaft element 301.

[0153] In some embodiments, the limiting element 305 includes but is not limited to a stainless steel ball.

[0154] In this embodiment, the number of limiting elements 305 is 2, and the two limiting elements 305 are respectively embedded in the corresponding ball grooves.

[0155] It should be noted that the number of limiting elements 305 is adapted to the number of ball grooves; it should be understood that the number of limiting elements 305 is the same as the number of ball grooves.

[0156] Further, the grinding unit 300 further comprises a second retainer element 306. Among them, the second retainer element 306 is arranged at the first end of the third rotating shaft element 301.

[0157] Specifically, the second retainer element 306 is installed at the first end of the third rotating shaft element 301 and abuts against the fourth bearing element 304, which is used to fix the fourth bearing element 304 installed inside the third rotating shaft element 301.

[0158] In some embodiments, the second retaining ring element 306 includes, but is not limited to, a resilient retaining ring for a hole.

[0159] Further, the grinding unit 300 further comprises a locking ring element 307. The locking ring element 307 is coaxially arranged at the second end of the third rotating shaft element 301, and is used to limit the position of the plurality of limiting elements 305.

[0160] Specifically, the third rotating shaft element 301 further comprises an annular groove. The annular groove is arranged on the outer sidewall of the second end of the third rotating shaft element 301, and is in communication with the ball groove, and is used to mount the locking ring element 307.

[0161] Specifically, the locking ring element 307 is clamped in the annular groove on the third rotating shaft element 301, thereby fixing the limiting elements 305 and preventing the limiting elements 305 from slipping out of the ball groove on the third rotating shaft element 301.

[0162] In some embodiments, the locking ring element 307 includes, but is not limited to, a stainless steel locking ring.

[0163] Further, the grinding unit 300 further comprises a second connecting element 309. The first end of the second connecting element 309 is arranged inside the third rotating shaft element 301 and is movably connected with the third rotating shaft element 301, and the second end of the second connecting element 309 is connected with the grinding element 308, and is used to drive the grinding element 308 to rotate under the action of the third rotating shaft element 301.

[0164] Specifically, the first end of the second connecting element 309 extends into the square hole of the third rotating shaft element 301, and the second connecting element 309 can reciprocate in the third rotating shaft element 301, and the second end of the second connecting element 309 is integrally formed with the grinding element 308.

[0165] It should be noted that the first end and the second end of the second connecting element 309 are respectively the two ends in the length direction thereof.

[0166] In some embodiments, the second connecting element 309 includes, but is not limited to, a grinding rod.

[0167] In addition, the four peripheral sidewalls of the second connecting element 309 are each provided with a limiting groove, and the limiting groove is arranged in a waist-shaped groove structure, and is used to be embeddedly connected with the limiting element 305.

[0168] The use method of the embodiment is as follows:

[0169] The operator rotates the control element 101, and the control element 101 drives the first rotating shaft element 103 to rotate, and the first rotating shaft element 103 simultaneously drives the first transmission element 104 sleeved thereon to rotate.

[0170] The rotation of the first transmission element 104 can drive the rotation of the second transmission element 202 engaged with the first transmission element 104, the rotation of the second transmission element 202 drives the rotation of the second rotating shaft element 201, the rotation of the second rotating shaft element 201 drives the rotation of the third transmission element 203, the rotation of the third transmission element 203 can drive the rotation of the fourth transmission element 302 engaged with the third transmission element 203, the rotation of the fourth transmission element 302 drives the rotation of the third rotating shaft element 301, and then the fifth rotating shaft element 403 drives the rotation of the second connecting element 309, the second connecting element 309 drives the rotation of the grinding element 308, thereby achieving the grinding of the material.

[0171] The advantage of the embodiment is that by arranging the first transmission unit between the driving unit and the grinding unit, the rotation speed of the grinding unit can be increased by several times through gear speed-up transmission, thereby increasing the grinding speed.

[0172] Embodiment 2

[0173] The embodiment is a variant of the embodiment 1, and the difference between the embodiment and the embodiment 1 is that the portable grinder further comprises a second transmission unit 400 and a pressing unit 500.

[0174] As shown in Figure 6 the portable grinder further comprises a second transmission unit 400 and a pressing unit 500. The first end of the second transmission unit 400 is in transmission connection with the driving unit 100, the rotation direction of the second transmission unit 400 is parallel to the rotation direction of the driving unit 100, and the second transmission unit 400 is used to rotate under the action of the driving unit 100; the first end of the pressing unit 500 is connected with the second transmission unit 400, and the second end of the pressing unit 500 is in abutment with the grinding unit 300, and the pressing unit 500 is used to drive the grinding unit 300 to reciprocate along the vertical direction under the action of the second transmission unit 400.

[0175] It should be noted that the transmission ratio of the second transmission unit 400 to the driving unit 100 is 1. That is, the driving unit 100 rotates one circle, and the second transmission unit 400 rotates one circle.

[0176] In one preferred embodiment, the grinding unit 300 rotates 5 circles, and the second transmission unit 400 drives the pressing unit 500 to work once. That is, the grinding unit 300 rotates 5 circles, and the pressing unit 500 applies pressure to the grinding unit 300 once.

[0177] It should be noted that the grinding unit 300 rotates 5 circles, and the second transmission unit 400 drives the pressing unit 500 to work once, that is, the grinding unit 300 rotates 5 circles, and the pressing unit 500 applies pressure to the grinding unit 300 once.

[0178] As shown in Figure 7As shown, the driving unit 100 further comprises a fifth transmission element 110. The fifth transmission element 110 is arranged at the second end of the driving unit 100 and is in transmission connection with the second transmission unit 400, so as to drive the second transmission unit 400 to rotate under the action of the driving unit 100.

[0179] Specifically, the fifth transmission element 110 is coaxially sleeved on the first rotating shaft element 103 and is in meshing connection with the second transmission unit 400. In addition, the inner wall of the fifth transmission element 110 is provided with a groove, which can be embeddedly connected with the first pin key element 109, so that the fifth transmission element 110 rotates with the first rotating shaft element 103.

[0180] In some embodiments, the fifth transmission element 110 includes but is not limited to a spur gear.

[0181] As shown in Figure 8 and Figure 9 The second transmission unit 400 comprises a sixth transmission element 401, a fourth rotating shaft element 402 and a fifth rotating shaft element 403. The sixth transmission element 401 is in transmission connection with the driving unit 100, so as to drive the sixth transmission element 401 to rotate under the action of the driving unit 100; the first end of the fourth rotating shaft element 402 is connected with the sixth transmission element 401, so as to rotate under the action of the sixth transmission element 401; the fifth rotating shaft element 403 is eccentrically arranged at the second end of the fourth rotating shaft element 402 and is connected with the first end of the pressing unit 500, so as to drive the pressing unit 500 to reciprocate along the vertical direction under the action of the fourth rotating shaft element 402.

[0182] Specifically, the sixth transmission element 401 is coaxially sleeved on the fourth rotating shaft element 402, and the inner wall of the sixth transmission element 401 is provided with a groove, which can be embeddedly connected with the third pin key element 408, so that the sixth transmission element 401 rotates with the fourth rotating shaft element 402.

[0183] The transmission ratio of the sixth transmission element 401 to the fifth transmission element 110 is 1.

[0184] In some embodiments, the sixth transmission element 401 includes but is not limited to a spur gear.

[0185] Specifically, the first end of the fourth rotating shaft element 402 is coaxially connected with the sixth transmission element 401, and the second end of the fourth rotating shaft element 402 is integrally formed with the fifth rotating shaft element 403. It should be noted that the first end and the second end of the fourth rotating shaft element 402 are respectively two ends in the length direction thereof.

[0186] In some embodiments, the fourth rotating shaft element 402 includes but is not limited to an eccentric shaft.

[0187] In addition, the fourth rotating shaft element 402 further comprises a third key groove. The third key groove is arranged on the fourth rotating shaft element 402 and used for mounting a pin key to fix the sixth transmission element 401 sleeved on the fourth rotating shaft element 402.

[0188] It should be noted that the third key groove is arranged in a waist-shaped groove structure, and the length direction of the third key groove is the same as the length direction of the fourth rotating shaft element 402.

[0189] The fifth rotating shaft element 403 is integrally formed with the fourth rotating shaft element 402 and arranged in a Z-shaped structure.

[0190] In some embodiments, the fifth rotating shaft element 403 includes but is not limited to an eccentric shaft.

[0191] Further, the second transmission unit 400 further comprises a fifth bearing element 404. The fifth bearing element 404 is coaxially arranged at the first end of the fourth rotating shaft element 402.

[0192] Specifically, the fifth bearing element 404 is coaxially sleeved at the first end of the fourth rotating shaft element 402, and the outer ring of the fifth bearing element 404 is fixedly connected with the shell, and the inner ring of the fifth bearing element 404 is fixedly connected with the fourth rotating shaft element 402.

[0193] In some embodiments, the fifth bearing element 404 includes but is not limited to a deep groove ball bearing.

[0194] Further, the second transmission unit 400 further comprises a sixth bearing element 405. The sixth bearing element 405 is coaxially arranged at the second end of the fourth rotating shaft element 402.

[0195] Specifically, the sixth bearing element 405 is coaxially sleeved at the second end of the fourth rotating shaft element 402, and the outer ring of the sixth bearing element 405 is fixedly connected with the shell, and the inner ring of the sixth bearing element 405 is fixedly connected with the fourth rotating shaft element 402.

[0196] In some embodiments, the sixth bearing element 405 includes but is not limited to a deep groove ball bearing.

[0197] Further, the second transmission unit 400 further comprises a second shaft sleeve element 406. The second shaft sleeve element 406 is coaxially arranged with the fourth rotating shaft element 402.

[0198] Specifically, the second shaft sleeve element 406 is arranged in a hollow cylindrical structure, the second shaft sleeve element 406 is coaxially sleeved on the fourth rotating shaft element 402, and the second shaft sleeve element 406 is located between the fifth bearing element 404 and the sixth bearing element 405.

[0199] In some embodiments, the second sleeve component 406 includes, but is not limited to, a washer.

[0200] Furthermore, the second transmission unit 400 further includes a third retaining ring element 407 , wherein the third retaining ring element 407 is disposed at the first end of the fourth rotating shaft element 402 .

[0201] Specifically, the third retaining ring element 407 is coaxially sleeved on the first end of the fourth rotating shaft element 402 and abuts against the sixth transmission element 401 to fix the sixth transmission element 401 .

[0202] In some embodiments, the third circlip element 407 includes but is not limited to a shaft circlip.

[0203] In addition, the fourth rotating shaft element 402 further includes a third pin key element 408 , wherein the third pin key element 408 is disposed on the fourth rotating shaft element 402 and is used to lock the sixth transmission element 401 sleeved on the fourth rotating shaft element 402 .

[0204] It should be noted that the third pin key element 408 is arranged in a waist-shaped block structure, and the third pin key element 408 is installed in the third keyway on the fourth rotating shaft element 402, and is used to fix the sixth transmission element 401 mounted on the fourth rotating shaft element 402, so that the sixth transmission element 401 mounted on the fourth rotating shaft element 402 can rotate following the fourth rotating shaft element 402.

[0205] In some embodiments, the third keying element 408 includes, but is not limited to, a metal key.

[0206] like Figure 8 and Figure 10 As shown, the pressurizing unit 500 includes a connecting rod 501, a piston 502, a first pressurizing element 503, and a second pressurizing element 504. The first end of the connecting rod 501 is connected to the second transmission unit 400, and is configured to reciprocate in the vertical direction under the action of the second transmission unit 400. The piston 502 is disposed at the second end of the connecting rod 501, and is configured to reciprocate in the vertical direction under the action of the connecting rod 501. The first pressurizing element 503 is disposed at the second end of the piston 502, and is configured to reciprocate in the vertical direction under the action of the piston 502. The second pressurizing element 504 is movably disposed within the grinding unit 300, with the first end of the second pressurizing element 504 abutting against the second end of the first pressurizing element 503, and is configured to drive the grinding unit 300 to reciprocate in the vertical direction under the action of the first pressurizing element 503.

[0207] Specifically, the first end of the connecting rod element 501 is connected with the fifth rotating shaft element 403, and the second end of the connecting rod element 501 is connected with the piston element 502, so that the connecting rod element 501 and the fifth rotating shaft element 403 form a crank connecting rod mechanism. It should be noted that the first end and the second end of the connecting rod element 501 are two ends in the length direction thereof.

[0208] In some embodiments, the connecting rod element 501 includes but is not limited to a crank connecting rod.

[0209] Specifically, the piston element 502 is rotationally connected with the second end of the connecting rod element 501 through a shaft element, and the piston element 502 is connected with the first pressing element 503.

[0210] In some embodiments, the piston element 502 includes but is not limited to a piston head.

[0211] In addition, the piston element 502 further includes an annular groove. The annular groove is arranged on the piston element 502 and located at the connection between the piston element 502 and the connecting rod element 501.

[0212] Specifically, the first end of the first pressing element 503 is connected with the piston element 502, and the second end of the first pressing element 503 is abutted with the second pressing element 504. It should be noted that the first end and the second end of the first pressing element 503 are two ends in the length direction thereof.

[0213] In some embodiments, the first pressing element 503 includes but is not limited to a hammer.

[0214] Specifically, the first end of the second pressing element 504 extends into the interior of the piston sleeve element 505 and abuts with the first pressing element 503, and the second end of the second pressing element 504 extends into the interior of the third rotating shaft element 301 in the grinding unit 300 and abuts with the second connecting element 309 in the grinding unit 300. It should be noted that the first end and the second end of the second pressing element 504 are two ends in the length direction thereof.

[0215] In some embodiments, the second pressing element 504 includes but is not limited to a striking rod. Further, the pressing unit 500 further includes a piston sleeve element 505. The piston sleeve element 505 is movably connected with the piston element 502 and the first pressing element 503, respectively.

[0216] Specifically, the piston sleeve element 505 is movably connected with the piston element 502, and the piston element 502 is installed in the interior of the piston sleeve element 505. The second end of the piston element 502 has a circular hole at the center thereof, which can be used for the second pressing element 504 to extend into.

[0217] In some embodiments, the piston sleeve element 505 comprises, but is not limited to, a piston.

[0218] Further, the piston sleeve element 505 further comprises an annular groove. The annular groove is formed at the first end of the piston sleeve element 505, and the annular groove is formed around the inner wall of the piston sleeve element 505.

[0219] Further, the pressurizing unit 500 further comprises a first reset element 506. The first reset element 506 is arranged between the second end of the piston element 502 and the first end of the first pressurizing element 503, and is used to drive the first pressurizing element 503 to reciprocate along the vertical direction under the action of the movable element.

[0220] Specifically, the first end of the first reset element 506 is connected with the second end of the piston element 502, and the second end of the first reset element 506 is connected with the first end of the first pressurizing element 503. It should be noted that the first end and the second end of the first reset element 506 are the two ends in the length direction thereof.

[0221] In some embodiments, the first reset element 506 comprises, but is not limited to, a hammer spring.

[0222] Further, the pressurizing unit 500 further comprises a first protection element 507. The first protection element 507 is arranged at the first end of the connecting rod element 501, and is connected with the second end of the second transmission unit 400.

[0223] Specifically, the first protection element 507 is installed at the through hole of the first end of the connecting rod element 501, and the first protection element 507 is rotationally connected with the fifth rotating shaft element 403.

[0224] In some embodiments, the first protection element 507 comprises, but is not limited to, a copper sleeve.

[0225] Further, the pressurizing unit 500 further comprises a third connecting element 508. The third connecting element 508 is connected with the second end of the connecting rod element 501 and the first end of the piston element 502, respectively.

[0226] Specifically, the third connecting element 508 passes through the second end of the connecting rod element 501 and the first end of the piston element 502 in sequence, and is used to connect the connecting rod element 501 and the piston element 502.

[0227] In some embodiments, the second connecting element 309 comprises, but is not limited to, a connecting rod pin.

[0228] Further, the pressurizing unit 500 further comprises a second fixing element 509. The interior of the second fixing element 509 is used to install the piston element 502 and the first pressurizing element 503.

[0229] Specifically, the second fixing element 509 is in a center cylinder structure, which is installed inside the shell, and the inside of the second fixing element 509 is used to install the piston element 502 and the piston sleeve element 505.

[0230] In some embodiments, the second fixing element 509 includes, but is not limited to, a piston sleeve.

[0231] In addition, the second fixing element 509 also includes a second circular ring plate. The second circular ring plate is formed on the outer side wall of the second fixing element 509, and the second circular ring plate can be embedded in the shell, so as to fix the second fixing element 509 inside the shell.

[0232] In this embodiment, the number of second circular ring plates is 2, and the two second circular ring plates are arranged at intervals along the length direction of the second fixing element 509.

[0233] In some embodiments, the number of second circular ring plates can also be 1, 3, etc., and the number of second circular ring plates can be set according to actual installation requirements, which is not limited here.

[0234] Further, the pressurizing unit 500 also includes a second protection element 510. The second protection element 510 is arranged at the second end of the connecting rod element 501 and connected with the third connecting element 508.

[0235] Specifically, the second protection element 510 is installed at the through hole of the second end of the connecting rod element 501, and the second protection element 510 is used for the third connecting element 508 to pass through.

[0236] In some embodiments, the second protection element 510 includes, but is not limited to, a copper sleeve.

[0237] Further, the pressurizing unit 500 also includes a fourth retaining ring element 511. The fourth retaining ring element 511 is arranged at the connection between the connecting rod element 501 and the piston element 502.

[0238] Specifically, the fourth retaining ring element 511 is clamped in the annular groove on the piston element 502, which is used to fix the connection between the piston element 502 and the connecting rod element 501.

[0239] In some embodiments, the fourth retaining ring element 511 includes, but is not limited to, a steel wire retaining ring for shaft.

[0240] Further, the pressurizing unit 500 also includes a fifth retaining ring element 512. The fifth retaining ring element 512 is arranged between the piston element 502 and the piston sleeve element 505.

[0241] Specifically, the fifth blocking ring element 512 is installed in the annular groove of the piston sleeve element 505, for preventing the piston element 502 from being detached from the piston sleeve element 505.

[0242] In some embodiments, the fifth blocking ring element 512 includes but is not limited to a piston pin lock ring.

[0243] Further, the pressurizing unit 500 further comprises a seventh bearing element 513. The seventh bearing element 513 is coaxially arranged at the end of the first fixing element 303 and rotationally connected with the grinding unit 300.

[0244] Specifically, the seventh bearing element 513 is installed at the end of the first fixing element 303 away from the connecting rod element 501, and the upper ring of the seventh bearing element 513 is fixedly connected with the first fixing element 303, and the lower ring of the seventh bearing element 513 abuts against the grinding unit 300.

[0245] In some embodiments, the seventh bearing element 513 includes but is not limited to a one-way thrust ball bearing.

[0246] Further, the pressurizing unit 500 further comprises a second reset element 514. The second reset element 514 is arranged between the first end of the second pressurizing element 504 and the second end of the first pressurizing element 503, for driving the second pressurizing element 504 to reciprocate along the vertical direction under the action of the first pressurizing element 503.

[0247] Specifically, the second reset element 514 is sleeved on the second pressurizing element 504, and the first end of the second reset element 514 abuts against the fixing pad element 515, and the second end of the second reset element 514 abuts against the stepped block on the second pressurizing element 504. It should be noted that the first end and the second end of the second reset element 514 are respectively the two ends in the length direction thereof.

[0248] In some embodiments, the second reset element 514 includes but is not limited to a striker rod spring.

[0249] In addition, the middle part of the second pressurizing element 504 is formed with a stepped block, which provides installation conditions for the second reset element 514 and abuts against the second end of the second reset element 514.

[0250] Further, the pressurizing unit 500 further comprises a fixing pad element 515. The fixing pad element 515 is arranged between the seventh bearing element 513 and the grinding unit 300 and abuts against the grinding unit 300.

[0251] Specifically, the fixing pad element 515 is connected with the lower ring of the seventh bearing element 513 by welding, riveting or bolt fixing, etc., and the fixing pad element 515 abuts against the grinding unit 300.

[0252] In addition, the fixed pad element 515 abuts against the first end of the second reset element 514.

[0253] In some embodiments, the fixed pad element 515 includes, but is not limited to, a thrust bearing pad.

[0254] It should be noted that by arranging the second reset element 514 between the stepped blocks on the fixed pad element 515 and the second pressing element 504, the second reset element 514 can apply a constant pressure to the grinding unit 300. After the grinding of the objects in the grinding unit 300, the density gradually increases and the volume gradually decreases. Under the action of the second reset element 514, the grinding unit 300 can be in close contact with the ground objects. Under the combined action of constant pressure rotary grinding and impact, the grinding efficiency and speed are improved.

[0255] The advantage of the embodiment is that by arranging the second transmission unit and the pressing unit between the driving unit and the grinding unit, the pressing unit applies pressure to the grinding unit once every several revolutions of the grinding unit. The grinding rod element can be in close contact with the ground objects. Under the combined action of constant pressure rotary grinding and impact, the grinding efficiency and speed are improved.

[0256] Embodiment 3

[0257] The embodiment is a variant of embodiments 1-2. The main difference between the embodiment and embodiments 1-2 is that the portable grinder further includes a housing unit 600.

[0258] As shown in Figure 11 and Figure 12 The portable grinder further includes a housing unit 600. The inside of the housing unit 600 is provided with the output end of the driving unit 100, the first transmission unit 200, the second transmission unit 400, the pressing unit 500, and the first end of the grinding unit 300. The outside of the housing unit 600 is provided with the control end of the driving unit 100 and the second end of the grinding unit 300.

[0259] Specifically, the housing unit 600 includes a first housing element 601, a second housing element 602, and a support element 603. The second housing element 602 is connected to the first housing element 601, and the first housing element 601 and the second housing element 602 have cavities inside for mounting the driving unit 100, the first transmission unit 200, the second transmission unit 400, the pressing unit 500, and the grinding unit 300. The support element 603 is arranged at the bottom of the first housing element 601 and the second housing element 602 to support the first housing element 601 and the second housing element 602.

[0260] More specifically, the first housing element 601 and the second housing element 602 are connected, and the first housing element 601 and the second housing element 602 have cavities inside for mounting the driving unit 100, the first transmission unit 200, the second transmission unit 400, the pressurizing unit 500 and the grinding unit 300.

[0261] In some embodiments, the first housing element 601 and the second housing element 602 include but are not limited to metal shells, plastic shells.

[0262] It should be noted that the first housing element 601 and the second housing element 602 are the same structure, and the first housing element 601 and the second housing element 602 are connected by bolts or screws, etc. In addition, the bottom of the first housing element 601 and the second housing element 602 has a semicircular hole, and the semicircular holes on the first housing element 601 and the second housing element 602 form a circular hole through the combination of the first housing element 601 and the second housing element 602. The circular hole can make the grinding unit 300 pass through and the local part of the pressurizing unit 500 pass through the housing unit 600 and extend into the inside of the grinding unit 300.

[0263] Further, the housing unit 600 further includes a plurality of reinforcing elements and a plurality of mounting elements. Among them, a plurality of reinforcing elements are formed on the inner wall of the first housing element 601 and the second housing element 602, which are used to increase the structural strength of the first housing element 601 and the second housing element 602; a plurality of mounting elements are formed at the butt joint of the first housing element 601 and the second housing element 602, which are used to provide mounting conditions for the bearings of the driving unit 100, the first transmission unit 200 and the second transmission unit 400.

[0264] More specifically, the reinforcing elements are integrally formed on the inner wall of the first housing element 601 and the second housing element 602. And the number of reinforcing elements on the first housing element 601 and the second housing element 602 can be set according to the actual strength requirement of the first housing element 601 and the second housing element 602, which is not limited too much here.

[0265] In some embodiments, the reinforcing elements include but are not limited to metal rib plates, plastic rib plates.

[0266] More specifically, the several mounting elements are divided into a first mounting slot, a second mounting slot, a third mounting slot, a fourth mounting slot, a fifth mounting slot, a sixth mounting slot and a seventh mounting slot. Among them, the first mounting slot is formed at the joint of the first housing element 601 and the second housing element 602, and the axial direction of the first mounting slot is the same as that of the first rotating shaft element 103, and the first mounting slot can provide mounting conditions for the first bearing element 107 in the driving unit 100; the second mounting slot is formed at the joint of the first housing element 601 and the second housing element 602, and is coaxially arranged with the first mounting slot, and the second mounting slot can provide mounting conditions for the second bearing element 108 in the driving unit 100; the third mounting slot is formed at the joint of the first housing element 601 and the second housing element 602, and is located below the first mounting slot and the second mounting slot, and the axial direction of the third mounting slot is perpendicular to the axial direction of the first mounting slot and the second mounting slot, and the third mounting slot can provide mounting conditions for the third bearing element 205 in the first transmission component; the fourth mounting slot is formed at the joint of the first housing element 601 and the second housing element 602, and is located above the first mounting slot and the second mounting slot, and the axial direction of the fourth mounting slot is the same as that of the first mounting slot and the second mounting slot, and the fourth mounting slot can provide mounting conditions for the fifth bearing element 404; the fifth mounting slot is formed at the joint of the first housing element 601 and the second housing element 602, and is located above the first mounting slot and the second mounting slot, and the axial direction of the fifth mounting slot is the same as that of the first mounting slot and the second mounting slot, and the fifth mounting slot can provide mounting conditions for the sixth bearing element 405; the sixth mounting slot is formed at the joint of the first housing element 601 and the second housing element 602, and is located at the side of the second mounting slot, and the circumferential direction of the sixth mounting slot is perpendicular to the axial direction of the second mounting slot, and the sixth mounting slot can provide mounting conditions for the second fixing element 509; the seventh mounting slot is formed at the joint of the first housing element 601 and the second housing element 602, and is located on the hole wall of the circular hole at the bottom of the first housing element 601 and the second housing element 602, and the seventh mounting slot can provide mounting conditions for the first fixing element 303.

[0267] It should be noted that the number of third mounting slots is 2, and the two third mounting slots are arranged in a vertical direction in the first housing element 601 and the second housing element 602.

[0268] In some embodiments, the number of third mounting slots is adapted to the number of third bearing elements 205; it should be understood that the number of third mounting slots is the same as the number of third bearing elements 205.

[0269] It should be noted that the number of sixth mounting slots is 2, and the two sixth mounting slots are arranged in a vertical direction in the first housing element 601 and the second housing element 602.

[0270] In some embodiments, the number of the sixth mounting slots can also be 1, 3, etc., i.e., the number of the sixth mounting slots can be set according to actual installation requirements, which is not limited here.

[0271] Specifically, the support element 603 comprises a tripod. The tripod is connected to the bottom walls of the first and second housing elements 601 and 602 by welding, riveting, or bolt fastening, etc., for supporting the first and second housing elements 601 and 602.

[0272] In some embodiments, the support element 603 comprises, but is not limited to, a metal tripod and a plastic tripod.

[0273] Further, the support element 603 further comprises a coaming. The coaming is formed at the top of the tripod, and the coaming can abut against the bottoms of the first and second housing elements 601 and 602, thereby supporting the first and second housing elements 601 and 602.

[0274] In some embodiments, the coaming comprises, but is not limited to, a metal plate and a plastic plate.

[0275] The use method and advantages of the present embodiment are the same as those of embodiments 1-2, which will not be repeated here.

[0276] Embodiment 4

[0277] The present embodiment is a variant of embodiment 3, and the main difference between the present embodiment and embodiment 3 is that the portable grinder further comprises a storage unit 700.

[0278] As shown in FIGS. Figure 11 and Figure 13 The portable grinder further comprises a storage unit 700. The storage unit 700 is detachably arranged at the bottom of the housing unit 600, and the second end of the grinding unit 300 is movably arranged inside the storage unit 700, for accommodating the material to be ground.

[0279] Specifically, the first fixing element 303 further comprises a plurality of locking rings. The plurality of locking rings are formed on the first fixing element 303 and are arranged at intervals along the circumference of the first fixing element 303, for detachable connection with the storage unit 700.

[0280] It should be noted that the structure of the locking ring is in the shape of an L structure, the locking ring is integrally formed on the second end of the first fixing element 303, and the plurality of locking rings are arranged around the first fixing element 303, and there is a certain gap between the adjacent two locking rings, which can be passed through by the locking element 705 of the storage unit 700.

[0281] In the embodiment, the number of the locking rings on the first fixing element 303 is 3, and the 3 locking rings are arranged around the second end of the first fixing element 303.

[0282] In some embodiments, the number of the locking rings can also be 2, 4, etc., that is, the number of the locking rings can be set according to actual needs, which is not limited here.

[0283] Specifically, the storage unit 700 includes a storage element 701 and a second locking element 703. The storage element 701 is detachably arranged at the bottom of the shell unit 600, and the inside of the storage element 701 movably arranges the second end of the grinding unit 300, for accommodating the material to be ground; the second locking element 703 is arranged at the top of the storage element 701, and is detachably connected with the shell unit 600.

[0284] More specifically, the storage element 701 is arranged in a cup structure, and the storage element 701 is detachably connected with the second fixing element 509 through the locking element, and the inside of the storage element 701 can place the material.

[0285] In some embodiments, the storage element 701 includes but is not limited to a grinding cup.

[0286] Further, the top of the storage element 701 is formed with a first flange element 702, and the first flange element 702 can detachably connect the storage element 701 with the locking element.

[0287] More specifically, the second locking element 703 is arranged in a hollow circular ring block structure, and the second locking element 703 is sleeved on the top of the storage element 701, and is detachably connected with the second end of the second fixing element 509.

[0288] Further, the second locking element 703 also has a second flange element 704, which is formed on the inner wall of the second locking element 703, and is used for abutting with the first flange element 702 on the storage element 701, so as to realize the connection between the storage element 701 and the second locking element 703.

[0289] Further, the inner wall of the second locking element 703 also has a plurality of locking elements 705, which are arranged in a block structure, and the plurality of locking elements 705 are arranged along the circumference of the inner wall of the second locking element 703, and the locking elements 705 can pass through the gap between the adjacent two locking rings on the second fixing element 509, and the second locking element 703 is fixed with the second fixing element 509 by rotating the second locking element 703.

[0290] In the embodiment, the number of the locking elements 705 is 3, and the 3 locking elements 705 are arranged around the inner side wall of the second locking element 703.

[0291] It should be noted that the number of the locking elements 705 is matched with the number of the locking rings; it should be understood that the number of the locking elements 705 is the same as the number of the locking rings.

[0292] It should be noted that the grinding material in the storage element 701 can be tightly attached to the second fixing element 509 through the second locking element 703 as long as the grinding material is within the specified capacity range, and the grinding device can be placed arbitrarily, and the grinding material in the storage element 701 will not be unloaded.

[0293] The use method of the embodiment is as follows:

[0294] The staff places the material to be ground in the storage element 701, and butts the second locking element 703 with the second fixing element 509, and connects the storage element 701 with the second fixing element 509 by rotating the second locking element 703.

[0295] After the material is ground, the staff separates the locking elements 705 from the locking rings on the second fixing element 509 by rotating the second locking element 703, so as to take down the storage element 701.

[0296] The advantages of the embodiment are the same as those of the embodiments 1-3, and will not be described here.

[0297] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0298] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A portable grinder characterized by, include: Drive unit; a first transmission unit, wherein a first end of the first transmission unit is in transmission connection with the driving unit, a rotation direction of the first transmission unit being perpendicular to a rotation direction of the driving unit, and the first transmission unit is configured to rotate under the action of the driving unit; a grinding unit, wherein a first end of the grinding unit is in transmission connection with the second end of the first transmission unit and is configured to rotate in a horizontal direction under the action of the first transmission unit to grind the sample to be ground; Wherein, the transmission ratio between the driving unit and the first transmission unit is greater than 1.

2. The portable sharpener of claim 1, wherein, The driving unit includes: Control components; a first connecting element, the first connecting element being disposed at an end portion of the operating element; a first rotating shaft element, wherein a first end of the first rotating shaft element is connected to the first connecting element, a rotation direction of the first rotating shaft element is perpendicular to a rotation direction of the first transmission unit, and the first rotating shaft element is configured to rotate under the action of the control element; a first transmission element, which is disposed at the second end of the first rotating shaft element and is in transmission connection with the first transmission unit, and is used to drive the first transmission unit to rotate under the action of the first rotating shaft element; and / or The first transmission unit includes: a second rotating shaft element, wherein a rotation direction of the second rotating shaft element is perpendicular to a rotation direction of the driving unit; a second transmission element, the second transmission element being disposed at the first end of the second rotating shaft element and being in transmission connection with the driving unit, and being configured to drive the second rotating shaft element to rotate under the action of the driving unit; a third transmission element, the third transmission element being disposed at the second end of the second rotating shaft element and being in transmission connection with the grinding unit, and being configured to drive the grinding unit to rotate in a horizontal direction under the action of the second rotating shaft element; and / or The grinding unit comprises: a third rotating shaft element, a first end of the third rotating shaft element being connected to the first transmission unit; a fourth transmission element, the fourth transmission element being disposed at the first end of the third rotating shaft element and being in transmission connection with the first transmission unit, and being configured to drive the third rotating shaft element to rotate under the action of the first transmission unit; A grinding element is movably disposed at the second end of the third rotating shaft element and is used for rotating under the action of the third rotating shaft element.

3. The portable sharpener of claim 2, wherein, The driving unit further includes: a first locking element, the first locking element being connected to the first connecting element and the first end of the first rotating shaft element respectively; and / or The driving unit further includes: a washer element, the washer element being disposed between the first locking element and the first end of the first rotation shaft element; and / or The driving unit further includes: a first bearing element, the first bearing element being coaxially arranged at the first end of the first rotating shaft element; and / or The driving unit further includes: a second bearing element, the second bearing element being coaxially arranged at the second end of the first rotating shaft element; and / or The first transmission unit further includes: a first shaft sleeve element, wherein the first shaft sleeve element is coaxially arranged with the second rotating shaft element; and / or The first transmission unit further comprises: at least one third bearing element coaxially arranged with the second rotating shaft element; and / or The first transmission unit further comprises: a first blocking ring element arranged at the second end of the second rotating shaft element; and / or The grinding unit further comprises: a first fixing element coaxially arranged with the third rotating shaft element for fixing the position of the third rotating shaft element; and / or The grinding unit further comprises: at least one fourth bearing element coaxially arranged with the third rotating shaft element; and / or The grinding unit further comprises: a second connecting element, a first end of the second connecting element is arranged inside the third rotating shaft element and movably connected with the third rotating shaft element, a second end of the second connecting element is connected with the grinding element for rotating the grinding element under the action of the third rotating shaft element; and / or The grinding unit further comprises: a plurality of limiting elements, a plurality of the limiting elements are arranged at the second end of the third rotating shaft element and abut against a first end of the grinding element; and / or The grinding unit further comprises: a second blocking ring element arranged at the first end of the third rotating shaft element; and / or The grinding unit further comprises: a locking ring element coaxially arranged at the second end of the third rotating shaft element for limiting the position of the plurality of limiting elements.

4. The portable sharpener according to any one of claims 1 to 3, wherein Further comprising: a second transmission unit, a first end of the second transmission unit is drivingly connected with the driving unit, a rotating direction of the second transmission unit is parallel to a rotating direction of the driving unit, for rotating under the action of the driving unit; a pressing unit, a first end of the pressing unit is connected with the second transmission unit, a second end of the pressing unit abuts against the grinding unit, for reciprocating in a vertical direction under the action of the second transmission unit to press the grinding unit.

5. The portable sharpener of claim 4, wherein, The driving unit further comprises: a fifth transmission element arranged at a second end of the driving unit and drivingly connected with the second transmission unit, for rotating the second transmission unit under the action of the driving unit; and / or The second transmission unit comprises: a sixth transmission element drivingly connected with the driving unit, for rotating under the action of the driving unit; a fourth rotating shaft element, a first end of the fourth rotating shaft element is connected with the sixth transmission element, for rotating under the action of the sixth transmission element; a fifth rotating shaft element arranged at a second end of the fourth rotating shaft element, the fifth rotating shaft element is eccentrically arranged with the fourth rotating shaft element and connected with a first end of the pressing unit, for reciprocating the pressing unit in a vertical direction under the action of the fourth rotating shaft element; and / or The pressing unit comprises: a connecting rod element, a first end of the connecting rod element is connected with the second transmission unit, for reciprocating in a vertical direction under the action of the second transmission unit; A piston element is arranged at the second end of the connecting rod element and is configured to reciprocate in the vertical direction under the action of the connecting rod element; A first pressing element is arranged at the second end of the piston element and is configured to reciprocate in the vertical direction under the action of the piston element; A second pressing element is movably arranged inside the grinding unit, the first end of the second pressing element abuts against the second end of the first pressing element, and the second pressing element is configured to reciprocate in the vertical direction under the action of the first pressing element to press the grinding unit.

6. The portable sharpener of claim 5, wherein, The second transmission unit further comprises: A fifth bearing element is coaxially arranged at the first end of the fourth rotating shaft element; and / or The second transmission unit further comprises: A sixth bearing element is coaxially arranged at the second end of the fourth rotating shaft element; and / or The second transmission unit further comprises: A second shaft sleeve element is coaxially arranged with the fourth rotating shaft element; and / or The second transmission unit further comprises: A third retainer ring element is arranged at the first end of the fourth rotating shaft element; and / or The pressing unit further comprises: A piston sleeve element is movably connected with the piston element and the first pressing element; and / or The pressing unit further comprises: A first reset element is arranged between the second end of the piston element and the first end of the first pressing element, and is configured to drive the first pressing element to reciprocate in the vertical direction under the action of the piston element; and / or The pressing unit further comprises: A first protection element is arranged at the first end of the connecting rod element and is connected with the second end of the second transmission unit; and / or The pressing unit further comprises: A third connecting element is connected with the second end of the connecting rod element and the first end of the piston element; and / or The pressing unit further comprises: A second fixed element is internally configured to mount the piston element and the first pressing element; and / or The pressing unit further comprises: A seventh bearing element is coaxially arranged at the end of the first fixed element and is rotationally connected with the grinding unit; and / or The pressing unit further comprises: A second reset element is arranged between the first end of the second pressing element and the second end of the first pressing element, and is configured to drive the second pressing element to reciprocate in the vertical direction under the action of the first pressing element; and / or The pressing unit further comprises: A second protection element is arranged at the second end of the connecting rod element and is connected with the third connecting element; and / or The pressing unit further comprises: A fourth retainer ring element is arranged at the connection between the connecting rod element and the piston element; and / or The pressing unit further comprises: A fifth retainer ring element is arranged between the piston element and the piston sleeve element; and / or The pressing unit further comprises: A fixing pad element is arranged between the seventh bearing element and the grinding unit and abuts against the grinding unit.

7. The portable sharpener of claim 1, wherein, Further comprising: A housing unit, an inside of the housing unit is provided with an output end of the driving unit, the first transmission unit, a first end of the grinding unit, an outside of the housing unit is provided with a control end of the driving unit, a second end of the grinding unit.

8. The portable sharpener of claim 7, wherein, The housing unit comprises: A first housing element; A second housing element, the second housing element is connected with the first housing element, and the first housing element and the second housing element have cavities inside for mounting the driving unit, the first transmission unit and the grinding unit; A supporting element, the supporting element is arranged at the bottom of the first housing element and the second housing element for supporting the first housing element and the second housing element.

9. The portable sharpener of claim 7 wherein, Further comprising: A storage unit, the storage unit is detachably arranged at the bottom of the housing unit, an inside of the storage unit is movably provided with the second end of the grinding unit for accommodating the material to be ground.

10. The portable sharpener of claim 9, wherein, The storage unit comprises: A storage element, the storage element is detachably arranged at the bottom of the housing unit, an inside of the storage element is movably provided with the second end of the grinding unit for accommodating the material to be ground; A second locking element, the second locking element is arranged at the top of the storage element and detachably connected with the housing unit.

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