An electrical barrier device, mechanical barrier device and barrier system

Abstract

The application relates to an electric resistance blocking device, a mechanical blocking device and a blocking system, wherein the electric resistance blocking device comprises a driving unit, a multi-link motion unit and a first guide unit. The electric resistance blocking device has the advantages of simple structure, low cost, no need to set up expensive driving modules and analog control modules, greatly reduced installation cost, can bear larger axial force by using the mechanical blocking device, can reduce the acting force in the stroke process of the electric resistance blocking device and the mechanical blocking device by using the dead point position, can be maintained for a long time, and only needs simple maintenance during maintenance, and can greatly reduce the installation cost by installing the electric resistance blocking device on a transportation car and installing the mechanical blocking device on a goods shelf.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent warehousing, and in particular to a resistance blocking device, a mechanical blocking device and a blocking system. BACKGROUND

[0002] In the existing intelligent warehousing system, a plurality of layers of stereoscopic shelves for storing goods and a transportation cage are generally arranged, and the transportation cage is used for intelligent taking and picking under the premise of meeting large-capacity storage. In the existing transportation cage and stereoscopic shelf, a switch door structure is generally arranged, and in the case that the transportation cage reaches a certain layer of the stereoscopic shelf, the transportation cage or the stereoscopic shelf is opened to communicate the transportation cage and the stereoscopic shelf, so that a four-way shuttle vehicle is used for transferring goods.

[0003] The current solution is as follows:

[0004] 1) Bosch rotary electric cylinder 0-90 degree rotation:

[0005] Advantages: quick installation, simple spare parts, and fewer mechanical structure parts;

[0006] Disadvantages: high equipment cost (generally about 30,000 yuan including drive module, control module, etc.), long debugging period, and generally requires the addition of professional software and electrical engineers for debugging;

[0007] Low safety: only gear and rack inside the electric cylinder, large force, and safety needs to be paid attention to during installation and debugging;

[0008] Stress direction: cannot bear axial force, i.e. impact from the four-way vehicle;

[0009] High maintenance cost: because the main structure is the electric cylinder module, maintenance generally chooses to replace spare parts;

[0010] Installation personnel cost: one electric resistance blocking device is installed on the shelf each time, the higher the number of layers of the shelf, the more the number of electric resistance blocking devices that need to be installed, and electrical control is difficult.

[0011] 2) THK linear single-axis driver mode

[0012] Advantages: since it is a linear electric cylinder connected to the mechanical structure of the linear guide rail slider, it can bear a large axial force, and the installation method is relatively simple;

[0013] Disadvantages: high cost (generally THK linear guide rail is 1000 yuan, and the price of linear electric cylinder is 20,000 yuan, etc.);

[0014] Maintenance: needs regular maintenance, the linear guide rail needs to be oiled and dusted, otherwise it will cause the guide rail to jam or not work normally;

[0015] Installation cost: from the beginning of the year Bosch, the higher the shelf, the more installation quantity, the more linear monorail and linear electric cylinder are purchased.

[0016] At present, in view of the problems of high installation cost and high maintenance cost in the prior art, no effective solution has been proposed. SUMMARY

[0017] The purpose of the present application is to solve the problems of high installation cost and high maintenance cost in the prior art by providing a resistance blocking device, a mechanical blocking device and a blocking system.

[0018] To achieve the above purpose, the technical scheme adopted by the present application is:

[0019] In a first aspect, a resistance blocking device is provided, comprising:

[0020] a driving unit;

[0021] a multi-link motion unit, the first end of the multi-link motion unit being connected to the output end of the driving unit, for reciprocating motion of the first end of the multi-link motion unit along the axial direction of the output end of the driving unit, rotation of the third end and the fourth end of the multi-link motion unit, and reciprocating motion of the fourth end of the multi-link motion unit between the vertical direction and the horizontal direction under the action of the driving unit, wherein the first end and the second end are two ends in the first direction, and the third end and the fourth end are two ends in the second direction, the first direction being perpendicular to the second direction;

[0022] a first guide unit, the first guide unit being provided on the fourth end of the multi-link motion unit, for reciprocating motion between the vertical direction and the horizontal direction under the action of the multi-link motion unit.

[0023] In a second aspect, a mechanical blocking device is provided, cooperating with the resistance blocking device of the first aspect, comprising:

[0024] a rotating unit, the rotating unit being provided on the side of the second end of the multi-link motion unit;

[0025] a second guide unit, the second guide unit being provided on the second end of the rotating unit and cooperating with the first guide unit, for reciprocating motion between the vertical direction and the horizontal direction under the action of the first guide unit.

[0026] In a third aspect, a blocking system is provided, applied to an intelligent warehousing system, the intelligent warehousing system comprising a transportation car and a shelf, the shelf comprising a plurality of shelf layers, comprising:

[0027] The electric resistance blocking device is arranged in the transportation cabin;

[0028] The mechanical resistance blocking devices are arranged in the shelf layers along the vertical direction of the shelf;

[0029] In the process of upward movement of the electric resistance blocking device along with the transportation cabin, the electric resistance blocking device cooperates with the mechanical resistance blocking device to make the transportation cabin stop at the shelf layer where the mechanical resistance blocking device is arranged.

[0030] Compared with the prior art, the electric resistance blocking device, the mechanical resistance blocking device and the blocking system have the following technical effects:

[0031] The electric resistance blocking device has simple structure and low cost, and does not need to be arranged with expensive driving modules and analog control modules, so that the installation cost is greatly reduced. The mechanical resistance blocking device can bear a large axial force, and the dead point position is used to reduce the force in the stroke process of the electric resistance blocking device and the mechanical resistance blocking device. The electric resistance blocking device and the mechanical resistance blocking device can be maintained for a long time, and only simple maintenance is needed during maintenance. The electric resistance blocking device is arranged in the transportation cabin, and the mechanical resistance blocking device is arranged in the shelf, so that the installation cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic diagram of the electric resistance blocking device according to an embodiment of the present application (one);

[0033] Figure 2 is a schematic diagram of the driving unit according to an embodiment of the present application;

[0034] Figures 3a to 3d is a schematic diagram of the multi-link motion unit according to an embodiment of the present application;

[0035] Figures 4a to 4c is a schematic diagram of the first guide unit according to an embodiment of the present application;

[0036] Figure 5 is a schematic diagram of the electric resistance blocking device according to an embodiment of the present application (two);

[0037] Figure 6 is a schematic diagram of the first fixed unit according to an embodiment of the present application;

[0038] Figure 7 is a schematic diagram of the second fixed unit according to an embodiment of the present application;

[0039] Figure 8 is a schematic diagram of the connecting unit according to an embodiment of the present application;

[0040] Figure 9is a schematic view of a mechanical blocking device according to an embodiment of the present application (I);

[0041] Figure 10 is a schematic view of a rotating unit according to an embodiment of the present application;

[0042] Figure 11 is a schematic view of a second guiding unit according to an embodiment of the present application;

[0043] Figure 12 is a schematic view of a mechanical blocking device according to an embodiment of the present application (II);

[0044] Figure 13 is a schematic view of a third fixing unit according to an embodiment of the present application;

[0045] Figure 14 is a schematic view of a blocking system according to an embodiment of the present application.

[0046] The reference signs in the drawings are: 1000, electrical blocking device; 1100, driving unit; 1110, driving element; 1120, output shaft element; 1200, multi-link motion unit; 1210, bracket element; 1211, shaft sleeve; 1212, bracket; 1213, first rotating element; 1220, first rotating shaft element; 1230, second rotating shaft element; 1240, third rotating shaft element; 1250, first link element; 1251, first link; 1252, second rotating element; 1253, third rotating element; 1260, second link element; 1261, second link; 1262, first sliding element; 1263, second sliding element; 1264, first mounting element; 1265, fourth rotating element; 1300, first guiding unit; 1310, first mounting element; 1311, first base element; 1312, second mounting element; 1313, third mounting element; 1320, first guiding element; 1321, guide wheel element; 1322, fourth mounting element; 1400, first fixing unit; 1410, first fixing element; 1411, bottom plate element; 1412, top plate element; 1413, support element; 1420, first connecting element; 1421, base element; 1422, second through-hole element; 1423, first connecting element; 1500, second fixing unit; 1510, second fixing element; 1520, first cavity element; 1530, second cavity element; 1540, third cavity element; 1550, second connecting element; 1600, connecting unit; 1610, third connecting element; 1611, base plate element; 1612, second connecting element; 1613, third connecting element;

[0047] 2000, mechanical blocking device; 2100, rotating unit; 2110, fourth rotating shaft element; 2120, rotating element; 2200, second guiding unit; 2210, second mounting element; 2220, second guiding element; 2300, third fixing unit; 2310, third fixing element; 2320, fourth cavity element. DETAILED DESCRIPTION

[0048] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0049] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and for those of ordinary skill in the art, the present application can be applied to other similar scenarios without creative effort based on the drawings. In addition, it can be understood that although the efforts made in the development process can be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacture or production changes based on the technical content disclosed in the present application are only routine technical means and should not be understood as insufficient disclosure of the present application.

[0050] In the present application, the phrase "embodiment" means that the specific features, structures or properties described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it independent or alternative to other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application can be combined with other embodiments without conflict.

[0051] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units (elements) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms “multiple” / “several” used in this application refer to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can indicate: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0052] Example 1

[0053] This embodiment relates to the electric resistance device of the present invention.

[0054] An illustrative embodiment of the present invention, such as Figure 1 As shown, an electric resistance device 1000 includes a drive unit 1100, a multi-link motion unit 1200, and a first guide unit 1300. The first end of the multi-link motion unit 1200 is connected to the output end of the drive unit 1100, and is used to reciprocate along the axial direction of the output end of the drive unit 1100 under the action of the drive unit 1100; the third and fourth ends of the multi-link motion unit 1200 rotate; and the fourth end of the multi-link motion unit 1200 reciprocates between the vertical and horizontal directions. The first and second ends are the two ends of a first direction, and the third and fourth ends are the two ends of a second direction, with the first and second directions perpendicular to each other. The first guide unit 1300 is disposed at the fourth end of the multi-link motion unit 1200 and is used to reciprocate between the vertical and horizontal directions under the action of the multi-link motion unit 1200.

[0055] like Figure 2As shown, the drive unit 1100 includes a drive element 1110 and an output shaft element 1120. The output shaft element 1120 is connected to the drive element 1110 and the first end of the multi-link motion unit 1200, respectively, and is used to drive the first end of the multi-link motion unit 1200 to reciprocate along the axial direction of the output shaft element 1120 under the action of the drive element 1110.

[0056] The driving element 1110 is arranged in the vertical direction.

[0057] In some of these embodiments, the drive element 1110 includes a drive motor and a power supply structure.

[0058] The output shaft element 1120 and the output end of the drive element 1110 are coaxially arranged.

[0059] In some of these embodiments, the output shaft element 1120 is an output shaft.

[0060] like Figure 3a As shown, the multi-link motion unit 1200 includes a support element 1210, a first rotating shaft element 1220, a second rotating shaft element 1230, a third rotating shaft element 1240, a first link element 1250, and a second link element 1260. The first end of the support element 1210 is connected to the output end of the drive unit 1100, and is used to reciprocate along the axial direction of the output end of the drive unit 1100 under the action of the drive unit 1100. The first end of the support element 1210 is also the first end of the multi-link motion unit 1200. A first rotating shaft element 1220 is disposed at the second end of the support element 1210. A second rotating shaft element 1230 is disposed on the first side of the support element 1210. A third rotating shaft element 1240 is disposed on the second side of the support element 1210. The first end of the first connecting rod element 1250 is rotatably connected to the first rotating shaft element 1220, and the second end of the first connecting rod element 1250 is rotatably connected to the second rotating shaft element 1230, and is used to rotate about the second rotating shaft element 1230 as an axis under the action of the support element 1210. The second end of component 1250 is the third end of multi-link motion unit 1200; the first end of the second link component 1260 is rotatably and slidably connected to the first rotating shaft component 1220, the first end of the second link component 1260 is slidably connected to the first end of the first link component 1250, the second end of the second link component 1260 is provided with a first guide unit 1300, and the third end of the second link component 1260 is rotatably connected to the third rotating shaft component 1240, which is used to rotate around the third rotating shaft component 1240 as an axis under the action of the support component 1210 to drive the first guide unit 1300 to reciprocate between the vertical and horizontal directions. The second end of the second link component 1260 is the second end of multi-link motion unit 1200, and the third end of the second link component 1260 is the fourth end of multi-link motion unit 1200.

[0061] Specifically, the first end of the bracket element 1210 is connected with the output shaft element 1120, for moving along the axial direction of the output shaft element 1120 under the action of the driving element 1110.

[0062] The working principle of the multi-link motion unit 1200 of the application is as follows:

[0063] (I) Initial state

[0064] The output shaft element 1120, the bracket element 1210 and the second link element 1260 are all vertically arranged;

[0065] (II) First working state

[0066] The driving element 1110 acts, driving the output shaft element 1120 to move upward, and in turn driving the bracket element 1210 to move upward;

[0067] In the case that the bracket element 1210 moves upward, since the first rotating shaft element 1220 keeps relative immobility with the bracket element 1210, and the second rotating shaft element 1230 and the third rotating shaft element 1240 keep immobility, the first link element 1250 rotates with the second rotating shaft element 1230 as the axis (i.e. the first end of the first link element 1250 moves upward following the first rotating shaft element 1220), and the second link element 1260 rotates with the third rotating shaft element 1240 as the axis (i.e. the first end of the second link element 1260 moves upward following the first rotating shaft element 1220);

[0068] In the case that the second link element 1260 rotates around the third rotating shaft element 1240, the first rotating shaft element 1220 slides from the first end of the second link element 1260 to the third end of the second link element 1260, so that the second end of the second link element 1260 gradually changes from the vertical direction to the horizontal direction;

[0069] The driving element 1110 stops acting, and the second link element 1260 is horizontally arranged;

[0070] (III) Second working state

[0071] The driving element 1110 acts, driving the output shaft element 1120 to move downward, and in turn driving the bracket element 1210 to move downward;

[0072] In the case that the support element 1210 moves downward, since the first rotating shaft element 1220 keeps relatively stationary with the support element 1210, and the second rotating shaft element 1230 and the third rotating shaft element 1240 keep stationary, the first connecting rod element 1250 rotates around the second rotating shaft element 1230 (i.e. the first end of the first connecting rod element 1250 moves downward following the first rotating shaft element 1220), and the second connecting rod element 1260 rotates around the third rotating shaft element 1240 (i.e. the first end of the second connecting rod element 1260 moves downward following the first rotating shaft element 1220);

[0073] In the case that the second connecting rod element 1260 rotates around the third rotating shaft element 1240, the first rotating shaft element 1220 slides from the third end of the second connecting rod element 1260 to the first end of the second connecting rod element 1260, so that the second end of the second connecting rod element 1260 gradually changes from the horizontal direction to the vertical direction;

[0074] The driving element 1110 stops working, and the second connecting rod element 1260 is vertically arranged.

[0075] As shown in Figure 3b The support element 1210 includes a shaft sleeve element 1211, a support element 1212, and a first rotating element 1213. The first end of the shaft sleeve element 1211 is connected with the output end of the driving unit 1100, and is arranged to reciprocate along the axial direction of the output end of the driving unit 1100 under the action of the driving unit 1100. The first end of the support element 1212 is connected with the second end of the shaft sleeve element 1211, the second end of the support element 1212 is rotationally connected with the first end of the first connecting rod element 1250, and the second end of the support element 1210 is rotationally and slidingly connected with the second end of the second connecting rod element 1260. The first rotating element 1213 is arranged at the second end of the support element 1212, and is connected with the first rotating shaft element 1220.

[0076] Specifically, the first end of the shaft sleeve element 1211 is connected with the output shaft element 1120.

[0077] The size of the shaft sleeve element 1211 matches the size of the output shaft element 1120. Generally, the radial size (e.g. the inner diameter) of the shaft sleeve element 1211 is equal to the radial size (e.g. the outer diameter) of the output shaft element 1120, and the axial size of the shaft sleeve element 1211 is greater than the axial size of the output shaft element 1120.

[0078] In some embodiments, the shaft sleeve element 1211 is a coupling sleeve.

[0079] In some embodiments, the shaft sleeve element 1211 is a hollow sleeve.

[0080] The support piece 1212 comprises a horizontal plate, a first vertical plate and a second vertical plate. The bottom end of the horizontal plate is connected with the second end of the shaft sleeve piece 1211; the bottom end of the first vertical plate is connected with the top end of the first end of the horizontal plate, and the top end of the first vertical plate is provided with a first rotating piece 1213; the bottom end of the second vertical plate is connected with the top end of the second end of the horizontal plate, and the top end of the second vertical plate is provided with a first rotating piece 1213.

[0081] The size of the horizontal plate matches the size of the shaft sleeve piece 1211. Generally, the radial dimension (such as length, width) of the horizontal plate is not less than the radial dimension of the shaft sleeve piece 1211.

[0082] The first vertical plate is arranged perpendicularly to the horizontal plate. The outer side surface of the first vertical plate is coplanar with the end surface of the first end of the horizontal plate.

[0083] The size of the first vertical plate matches the size of the horizontal plate. Generally, the radial dimension (such as length, width) of the first vertical plate is not greater than the radial dimension (such as length, width) of the horizontal plate, and the axial dimension (such as height) of the first vertical plate is greater than the axial dimension (such as height, thickness) of the horizontal plate.

[0084] The second vertical plate is arranged perpendicularly to the horizontal plate, and the second vertical plate is arranged parallel to the first vertical plate. The outer side surface of the second vertical plate is coplanar with the end surface of the second end of the horizontal plate.

[0085] The size of the second vertical plate matches the size of the horizontal plate. Generally, the radial dimension (such as length, width) of the second vertical plate is not greater than the radial dimension (such as length, width) of the horizontal plate, and the axial dimension (such as height) of the second vertical plate is greater than the axial dimension (such as height, thickness) of the horizontal plate.

[0086] The size of the second vertical plate matches the size of the first vertical plate. Generally, the radial dimension (such as length, width) of the second vertical plate is equal to the radial dimension (such as length, width) of the first vertical plate, and the axial dimension (such as height) of the second vertical plate is equal to the axial dimension (such as height) of the first vertical plate.

[0087] The first rotating piece 1213 penetrates the second end of the support piece 1212. Specifically, the first rotating piece 1213 penetrates the top end of the first vertical plate and the top end of the second vertical plate.

[0088] That is, there are two first rotating pieces 1213, one first rotating piece 1213 penetrates the top end of the first vertical plate, and the other first rotating piece 1213 penetrates the top end of the second vertical plate.

[0089] The size of the first rotating piece 1213 matches the size of the support piece 1212. Generally, the radial dimension of the first rotating piece 1213 is less than the height and length of the first vertical plate (the second vertical plate), and the axial dimension of the first rotating piece 1213 is equal to the width (i.e. thickness) of the first vertical plate (the second vertical plate).

[0090] In some embodiments, the first rotating member 1213 is a first rotating hole.

[0091] The two ends of the first rotating shaft element 1220 are respectively connected with the two first rotating members 1213 of the bracket element 1210. The connection mode can be rotating connection or non-rotating connection. Specifically, in the case of upward or downward movement of the bracket element 1210, the first rotating shaft element 1220 can rotate relative to the bracket element 1210, or can not rotate relative to the bracket element 1210.

[0092] The size of the first rotating shaft element 1220 matches the size of the bracket element 1210. Generally, the radial dimension of the first rotating shaft element 1220 is equal to the radial dimension of the first rotating member 1213, and the axial dimension of the first rotating shaft element 1220 is not less than the length of the horizontal plate.

[0093] In some embodiments, the first rotating shaft element 1220 is a first rotating shaft.

[0094] The axial direction of the second rotating shaft element 1230 is parallel to the axial direction of the first rotating shaft element 1220. The second rotating shaft element 1230 is arranged obliquely above the first side of the first rotating shaft element 1220.

[0095] The size of the second rotating shaft element 1230 matches the size of the first rotating shaft element 1220. Generally, the radial dimension of the second rotating shaft element 1230 is equal to the radial dimension of the first rotating shaft element 1220.

[0096] In some embodiments, the second rotating shaft element 1230 is a second rotating shaft.

[0097] The axial direction of the third rotating shaft element 1240 is parallel to the axial direction of the first rotating shaft element 1220 and the axial direction of the second rotating shaft element 1230. The third rotating shaft element 1240 is arranged obliquely above the second side of the first rotating shaft element 1220.

[0098] In the initial state, the third rotating shaft element 1240, the second rotating shaft element 1230 and the first rotating shaft element 1220 are arranged in a triangular shape. Generally, they are arranged in an isosceles triangle.

[0099] The size of the third rotating shaft element 1240 matches the size of the first rotating shaft element 1220. Generally, the radial dimension of the third rotating shaft element 1240 is equal to the radial dimension of the first rotating shaft element 1220.

[0100] In some embodiments, the third rotating shaft element 1240 is a third rotating shaft.

[0101] As Figure 3cAs shown, the first connecting rod element 1250 comprises a first connecting rod 1251, a second rotating member 1252 and a third rotating member 1253. The first end of the first connecting rod 1251 is rotatably connected with the second end of the support element 1210, and the first end of the first connecting rod 1251 is slidably connected with the second connecting rod element 1260, for rotating with the second end of the first connecting rod 1251 as the axis under the action of the support element 1210; the second rotating member 1252 is arranged at the first end of the first connecting rod element 1250 and is rotatably connected with the first rotating shaft element 1220; and the third rotating member 1253 is arranged at the second end of the first connecting rod element 1250 and is rotatably connected with the second rotating shaft element 1230.

[0102] The first connecting rod 1251 is obliquely arranged above the support member 1212 of the support element 1210.

[0103] The size of the first connecting rod 1251 matches the size of the first rotating shaft element 1220 / second rotating shaft element 1230. Generally, the radial size (such as length, width) of the first connecting rod 1251 is greater than the radial size of the first rotating shaft element 1220 / second rotating shaft element 1230, and the axial size (such as thickness) of the first connecting rod 1251 is less than the axial size of the first rotating shaft element 1220 / second rotating shaft element 1230.

[0104] In some embodiments, the first connecting rod 1251 is a first connecting rod.

[0105] The second rotating member 1252 is arranged through the first end of the first connecting rod 1251.

[0106] The size of the second rotating member 1252 matches the size of the first connecting rod 1251. Generally, the radial size (such as diameter) of the second rotating member 1252 is less than the radial size (such as length, width) of the first connecting rod 1251.

[0107] The size of the second rotating member 1252 matches the size of the first rotating shaft element 1220. Generally, the radial size (such as diameter) of the second rotating member 1252 is equal to the radial size of the first rotating shaft element 1220.

[0108] In some embodiments, the second rotating member 1252 is a second rotating hole.

[0109] The third rotating member 1253 is arranged through the second end of the first connecting rod 1251.

[0110] The size of the third rotating member 1253 matches the size of the first connecting rod 1251. Generally, the radial size (such as diameter) of the third rotating member 1253 is less than the radial size (such as length, width) of the first connecting rod 1251.

[0111] The dimensions of the third rotating element 1253 are matched with the dimensions of the second rotating shaft element 1230. Generally, the radial dimension (e.g., diameter) of the third rotating element 1253 is equal to the radial dimension of the second rotating shaft element 1230.

[0112] In some of these embodiments, the third rotating member 1253 is a third rotating hole.

[0113] like Figure 3d As shown, the second linkage element 1260 includes a second linkage member 1261, a first sliding member 1262, a second sliding member 1263, a first mounting member 1264, and a fourth rotating member 1265. The first end of the second connecting rod 1261 is rotatably connected to the second end of the support element 1210, and is used to rotate about the third end of the second connecting rod 1261 as an axis under the action of the support element 1210 so that the second end of the second connecting rod 1261 reciprocates in the vertical and horizontal directions; the first sliding member 1262 is disposed at the first end and the third end of the second connecting rod 1261 and is slidably connected to the second end of the support element 1210; the second sliding member 1263 is disposed at the first end of the second connecting rod 1261 and is slidably connected to the first connecting rod element 1250; the first mounting member 1264 is disposed at the second end of the second connecting rod 1261 and is connected to the first guide unit 1300; the fourth rotating member 1265 is disposed at the third end of the second connecting rod element 1260 and is rotatably connected to the third rotating shaft element 1240.

[0114] The second connecting rod 1261 is vertically disposed above the support member 1212 of the support element 1210.

[0115] The second connecting rod 1261 is hook-shaped. Specifically, the second connecting rod 1261 includes a first hook rod and a second connecting rod. The first hook rod has a first sliding member 1262 and a second sliding member 1263 at its first to third ends, and a fourth rotating member 1265 at its third end. The first end of the second connecting rod is connected to the second end of the first hook rod, and the second end of the second connecting rod has a first mounting member 1264.

[0116] The cross-section of the first hook rod is roughly triangular.

[0117] The dimensions of the first hook rod are matched with the dimensions of the first rotating shaft element 1220 / the third rotating shaft element 1240. Generally, the radial dimension of the first hook rod is greater than the radial dimension of the first rotating shaft element 1220 / the third rotating shaft element 1240, and the axial dimension (e.g., thickness) of the first hook rod is smaller than the axial dimension of the first rotating shaft element 1220 / the third rotating shaft element 1240.

[0118] Generally, the second connecting rod is integrally formed with the first hook rod.

[0119] The second connecting rod is sized to match the first hook rod. Generally, the second connecting rod has a smaller radial dimension than the first hook rod, and an axial dimension that is not greater than the axial dimension of the first hook rod.

[0120] The first sliding member 1262 is disposed through the first hook rod of the second connecting rod member 1261.

[0121] The first sliding member 1262 is sized to match the second connecting rod member 1261. Generally, the first sliding member 1262 has a smaller radial dimension than the first hook rod.

[0122] The first sliding member 1262 is sized to match the first rotating shaft element 1220. Generally, the first sliding member 1262 has a width that is equal to the radial dimension of the first rotating shaft element 1220, and a length that is greater than the radial dimension of the first rotating shaft element 1220.

[0123] In some embodiments, the first sliding member 1262 is a first sliding groove.

[0124] The second sliding member 1263 is disposed at the first end of the second connecting rod member 1261 and is located at the side of the first sliding member 1262. Specifically as follows:

[0125] 1) The second sliding member 1263 is disposed at the middle of the first hook rod of the second connecting rod member 1261, and the first sliding member 1262 is two and is located at both sides of the second sliding member 1263, and the two first sliding members 1262 are respectively in communication with the second sliding member 1263;

[0126] 2) The second sliding member 1263 is disposed at one side of the first hook rod of the second connecting rod member 1261, and the first sliding member 1262 is one and is located at the other side of the first hook rod, and the first sliding member 1262 is in communication with the second sliding member 1263.

[0127] In some embodiments, the second sliding member 1263 is a second sliding groove.

[0128] The first mounting member 1264 is disposed at the second end of the second connecting rod of the second connecting rod member 1261.

[0129] The first mounting member 1264 can be disposed through the second connecting rod member 1261 (second connecting rod) or not.

[0130] In some embodiments, the first mounting member 1264 is several. The several first mounting members 1264 are disposed in the length direction of the second connecting rod member 1261 (second connecting rod) at intervals.

[0131] The first mounting member 1264 is sized to match the second link member 1261. Generally, the radial dimension of the first mounting member 1264 is smaller than the radial dimension of the second link member.

[0132] In some embodiments, the first mounting member 1264 is a first mounting groove, a first mounting protrusion.

[0133] The fourth rotating member 1265 is disposed through the third end of the first hook rod of the second link member 1261.

[0134] The fourth rotating member 1265 is disposed at the second end of the first sliding member 1262 and is not in communication with the first sliding member 1262.

[0135] The fourth rotating member 1265 is sized to match the second link member 1261. Generally, the radial dimension of the fourth rotating member 1265 is smaller than the radial dimension of the first hook rod.

[0136] The fourth rotating member 1265 is sized to match the third rotating shaft element 1240. Generally, the radial dimension of the fourth rotating member 1265 is equal to the radial dimension of the third rotating shaft element 1240, and the axial dimension of the fourth rotating member 1265 is smaller than the axial dimension of the third rotating shaft element 1240.

[0137] In some embodiments, the fourth rotating member 1265 is a fourth rotating hole.

[0138] As shown in Figure 4a The first guiding unit 1300 includes a first mounting element 1310 and at least one first guiding element 1320. The first mounting element 1310 is disposed at the second end of the multi-link motion unit 1200 and is configured to reciprocate between the vertical direction and the horizontal direction under the action of the multi-link motion unit 1200. The first guiding element 1320 is disposed on the first mounting element 1310 and is configured to reciprocate between the vertical direction and the horizontal direction under the action of the first mounting element 1310.

[0139] Specifically, the first mounting element 1310 is disposed at the second end of the second link element 1260 and is connected with the second link element 1260.

[0140] More specifically, the first mounting element 1310 is disposed at the second end of the second link member 1261 and is connected with the first mounting member 1264.

[0141] As shown in Figure 4bAs shown, the first mounting element 1310 comprises a first base piece 1311, a second mounting piece 1312 and a third mounting piece 1313. The first base piece 1311 is arranged at the second end of the multi-link motion unit 1200; the second mounting piece 1312 is arranged at the first base piece 1311 and connected with the multi-link motion unit 1200; the third mounting piece 1313 is arranged at the first base piece 1311 and connected with the first guide element 1320.

[0142] The first base piece 1311 is arranged at the second end of the second link piece 1261.

[0143] The size of the first base piece 1311 matches the size of the second link piece 1261. Generally, the radial dimension (such as length, width) of the first base piece 1311 is not greater than the radial dimension (such as length, width) of the second link piece 1261 (second link).

[0144] The second mounting piece 1312 is connected with the first mounting piece 1264. Generally, the second mounting piece 1312 is detachably connected with the first mounting piece 1264, including but not limited to plug-in connection, bolt connection, etc.

[0145] The second mounting piece 1312 can be arranged through the first base piece 1311 or not.

[0146] In some embodiments, the second mounting piece 1312 is a plurality of second mounting pieces. The plurality of second mounting pieces 1312 are arranged at intervals along the length direction of the first base piece 1311.

[0147] The size of the second mounting piece 1312 matches the size of the first base piece 1311. Generally, the radial dimension of the second mounting piece 1312 is smaller than the radial dimension of the first base piece 1311.

[0148] The size of the second mounting piece 1312 matches the size of the first mounting piece 1264. Generally, the radial dimension of the second mounting piece 1312 is equal to the radial dimension of the first mounting piece 1264.

[0149] In some embodiments, the second mounting piece 1312 is a second mounting groove or a second mounting protrusion.

[0150] Generally, the mounting mode of the first mounting piece 1264 and the second mounting piece 1312 is as follows:

[0151] 1) The first mounting piece 1264 is a first mounting groove, the second mounting piece 1312 is a second mounting protrusion, and the first mounting piece 1264 and the second mounting piece 1312 are interference fit;

[0152] 2) The first mounting part 1264 is a first mounting protrusion, and the second mounting part 1312 is a second mounting groove. The first mounting part 1264 and the second mounting part 1312 are interference fit.

[0153] 3) The first mounting part 1264 is the first mounting groove, and the second mounting part 1312 is the second mounting groove. The first mounting part 1264 and the second mounting part 1312 are assembled by bolts and nuts.

[0154] The third mounting component 1313 may be installed through the first base component 1311 or may not be installed through the first base component 1311.

[0155] In some embodiments, there are multiple third mounting members 1313. The multiple third mounting members 1313 are spaced apart along the length direction of the first base member 1311.

[0156] When there are multiple second mounting components 1312 and multiple third mounting components 1313, the distribution is as follows:

[0157] 1) A plurality of second mounting parts 1312 and a plurality of third mounting parts 1313 are distributed in sequence, such that a plurality of second mounting parts 1312 are provided at one end of the first base part 1311 and a plurality of third mounting parts 1313 are provided at the other end of the first base part 1311;

[0158] 2) A plurality of second mounting parts 1312 and a plurality of third mounting parts 1313 are arranged at intervals, with the second mounting parts 1312 and the third mounting parts 1313 arranged sequentially at intervals from one end of the first base part 1311 to the other end of the first base part 1311, that is, a third mounting part 1313 is arranged between two adjacent second mounting parts 1312 and a second mounting part 1312 is arranged between two adjacent third mounting parts 1313.

[0159] The dimensions of the second mounting member 1312 are matched with the dimensions of the first base member 1311. Generally, the radial dimension of the second mounting member 1312 is smaller than the radial dimension of the first base member 1311.

[0160] In some of these embodiments, the third mounting element 1313 is a third mounting groove or a third mounting protrusion.

[0161] like Figure 4c As shown, the first guide element 1320 includes a guide wheel 1321 and a fourth mounting member 1322. The fourth mounting member 1322 is disposed on the guide wheel 1321 and connected to the first mounting element 1310.

[0162] The guide wheel 1321 is located on the side of the first mounting element 1310 away from the second connecting rod element 1260.

[0163] In some embodiments, the plurality of guide wheel members 1321 are arranged along the length of the first mounting element 1310.

[0164] The number of guide wheel members 1321 matches the number of third mounting members 1313. Generally, the number of guide wheel members 1321 is equal to the number of third mounting members 1313.

[0165] The size of guide wheel members 1321 matches the size of the first mounting element 1310. Generally, the radial dimension (e.g. length, width) of guide wheel members 1321 is not greater than the radial dimension (e.g. length, width) of the first mounting element 1310.

[0166] The number of fourth mounting members 1322 matches the number of guide wheel members 1321. Generally, the number of fourth mounting members 1322 is equal to the number of guide wheel members 1321.

[0167] The size of fourth mounting members 1322 matches the size of guide wheel members 1321. Generally, the radial dimension of fourth mounting members 1322 is smaller than the radial dimension of guide wheel members 1321.

[0168] The size of fourth mounting members 1322 matches the size of third mounting members 1313. Generally, the radial dimension of fourth mounting members 1322 is equal to the radial dimension of third mounting members 1313.

[0169] In some embodiments, the fourth mounting members 1322 are fourth mounting grooves, fourth mounting protrusions.

[0170] For the mounting manner of third mounting members 1313 and fourth mounting members 1322, reference can be made to the mounting manner of first mounting members 1264 and second mounting members 1312.

[0171] The use method of the present application is as follows:

[0172] (I) Initial state

[0173] The output shaft element 1120, the bracket element 1210 and the second connecting rod element 1260 are all arranged vertically;

[0174] (II) First working state

[0175] The driving element 1110 is actuated to drive the output shaft element 1120 to move upward, and in turn drive the bracket element 1210 to move upward;

[0176] In the case that the bracket element 1210 moves upward, since the first rotating shaft element 1220 keeps relatively stationary with the bracket element 1210, the second rotating shaft element 1230 and the third rotating shaft element 1240 keep stationary, the first connecting rod element 1250 rotates around the second rotating shaft element 1230 (i.e. the first end of the first connecting rod element 1250 moves upward following the first rotating shaft element 1220), and the second connecting rod element 1260 rotates around the third rotating shaft element 1240 (i.e. the first end of the second connecting rod element 1260 moves upward following the first rotating shaft element 1220);

[0177] In the case that the second connecting rod element 1260 rotates around the third rotating shaft element 1240, the first rotating shaft element 1220 slides from the first end of the first sliding element 1262 to the second end of the first sliding element 1262 (i.e. moves from the first end of the second connecting rod element 1260 to the third end of the second connecting rod element 1260), and the first connecting rod element 1250 slides along the second sliding element 1263, so that the second end of the second connecting rod element 1260 gradually changes from the vertical direction to the horizontal direction;

[0178] The driving element 1110 stops working, and the second connecting rod element 1260 is horizontally arranged;

[0179] (Three) second working state

[0180] The driving element 1110 works, drives the output shaft element 1120 to move downward, and further drives the bracket element 1210 to move downward;

[0181] In the case that the bracket element 1210 moves downward, since the first rotating shaft element 1220 keeps relatively stationary with the bracket element 1210, the second rotating shaft element 1230 and the third rotating shaft element 1240 keep stationary, the first connecting rod element 1250 rotates around the second rotating shaft element 1230 (i.e. the first end of the first connecting rod element 1250 moves downward following the first rotating shaft element 1220), and the second connecting rod element 1260 rotates around the third rotating shaft element 1240 (i.e. the first end of the second connecting rod element 1260 moves downward following the first rotating shaft element 1220);

[0182] In the case that the second connecting rod element 1260 rotates around the third rotating shaft element 1240, the first rotating shaft element 1220 slides from the second end of the first sliding element 1262 to the first end of the first sliding element 1262 (i.e. moves from the third end of the second connecting rod element 1260 to the first end of the second connecting rod element 1260), and the first connecting rod element 1250 slides along the second sliding element 1263, so that the second end of the second connecting rod element 1260 gradually changes from the horizontal direction to the vertical direction;

[0183] The driving element 1110 stops working, and the second connecting rod element 1260 is vertically arranged.

[0184] Embodiment 2

[0185] This embodiment is a variant of embodiment 1.

[0186] As shown in Figure 5 , the electric resistance blocking device 1000 further comprises a first fixing unit 1400, a second fixing unit 1500 and a connecting unit 1600. The first fixing unit 1400 is connected with the driving unit 1100 and used for fixing the driving unit 1100; the second fixing unit 1500 is connected with the multi-link motion unit 1200 and used for fixing the multi-link motion unit 1200; and the connecting unit 1600 is connected with the first fixing unit 1400 and the second fixing unit 1500 respectively.

[0187] As shown in Figure 6 , the first fixing unit 1400 comprises a first fixing element 1410 and a first connecting element 1420. The first fixing element 1410 is connected with the driving unit 1100 and used for fixing the driving unit 1100; and the first connecting element 1420 is arranged at the second end of the first fixing element 1410 and connected with the connecting unit 1600.

[0188] Specifically, the first fixing element 1410 is connected with the driving element 1110, and the second end of the first fixing element 1410 is for the output shaft element 1120 to pass through; and the first connecting element 1420 is for the output shaft element 1120 to pass through.

[0189] The first fixing element 1410 comprises a bottom plate 1411, a top plate 1412, a support 1413 and a first through hole 1414. The top plate 1412 is arranged opposite to the bottom plate 1411, and the driving unit 1100 is arranged between the top plate 1412 and the bottom plate 1411; the support 1413 is connected with the bottom plate 1411 and the top plate 1412 respectively; and the first through hole 1414 is arranged through the top plate 1412 and used for the output end of the driving unit 1100 to pass through.

[0190] The size of the bottom plate 1411 matches the size of the driving element 1110. Generally, the radial dimension (such as length or width) of the bottom plate 1411 is larger than the radial dimension of the driving element 1110.

[0191] In some embodiments, the bottom plate 1411 is a fixed bottom plate.

[0192] The size of the top plate 1412 matches the size of the driving element 1110. Generally, the radial dimension (such as length or width) of the top plate 1412 is larger than the radial dimension of the driving element 1110.

[0193] The size of the top plate member 1412 matches the size of the bottom plate member 1411. Generally, the radial dimension (e.g. length, width) of the top plate member 1412 is equal to the radial dimension (e.g. length, width) of the bottom plate member 1411.

[0194] In some embodiments, the top plate member 1412 is a fixed top plate.

[0195] The support member 1413 is a plurality of. The plurality of support members 1413 are arranged around the driving element 1110.

[0196] In some embodiments, the support member 1413 is two. The two support members 1413 are symmetrically arranged on both sides of the driving element 1110.

[0197] In some embodiments, the support member 1413 is four. The four support members 1413 are symmetrically arranged on both sides of the driving element 1110.

[0198] The size of the support member 1413 matches the size of the bottom plate member 1411 / top plate member 1412. Generally, the radial dimension of the support member 1413 is smaller than the radial dimension of the bottom plate member 1411 / top plate member 1412.

[0199] The size of the support member 1413 matches the size of the driving element 1110. Generally, the axial dimension (e.g. height) of the support member 1413 is equal to the axial dimension (e.g. height) of the driving element 1110.

[0200] In some embodiments, the support member 1413 is a support plate, a support column.

[0201] The size of the first through hole member 1414 matches the size of the top plate member 1412. Generally, the radial dimension (e.g. diameter) of the first through hole member 1414 is smaller than the radial dimension of the top plate member 1412.

[0202] The size of the first through hole member 1414 matches the size of the output shaft element 1120. Generally, the radial dimension of the first through hole member 1414 is larger than the radial dimension of the output shaft element 1120.

[0203] In some embodiments, the first through hole member 1414 is a first through hole.

[0204] The first connecting element 1420 includes a base member 1421, a second through hole member 1422, and a first connecting member 1423. The base member 1421 is arranged at the bottom end of the first fixed element 1410; the second through hole member 1422 is arranged through the base member 1421, for the output end of the driving unit 1100 to pass through; the first connecting member 1423 is arranged at the side of the base member 1421, and is connected with the connecting unit 1600.

[0205] The base member 1421 is disposed on top of the top plate member 1412 and detachably connected to the top plate member 1412, such as by screwing.

[0206] The base member 1421 has a size matching that of the top plate member 1412. Generally, the radial dimension (such as length, width) of the base member 1421 is smaller than that of the top plate member 1412.

[0207] In some embodiments, the base member 1421 is a fixed base.

[0208] The second through-hole member 1422 is disposed corresponding to the first through-hole member 1414.

[0209] The second through-hole member 1422 has a size matching that of the base member 1421. Generally, the radial dimension (such as diameter) of the second through-hole member 1422 is smaller than that of the base member 1421.

[0210] The second through-hole member 1422 has a size matching that of the first through-hole member 1414. Generally, the radial dimension of the second through-hole member 1422 is not smaller than that of the first through-hole member 1414.

[0211] In some embodiments, the second through-hole member 1422 is a second through-hole.

[0212] In some embodiments, the first connecting member 1423 is a plurality of first connecting members. The plurality of first connecting members 1423 are spaced apart along the height direction of the base member 1421.

[0213] The first connecting member 1423 has a size matching that of the base member 1421. Generally, the radial dimension of the first connecting member 1423 is smaller than the length / width and height of the base member 1421, and the axial dimension of the first connecting member 1423 is smaller than the length / width of the base member 1421.

[0214] In some embodiments, the first connecting member 1423 is a first connecting groove.

[0215] In some embodiments, the first connecting member 1423 is a first connecting hole.

[0216] In some embodiments, the first connecting member 1423 is a combination of a first connecting groove and a first connecting hole.

[0217] As Figure 7As shown, the second fixing unit 1500 comprises a second fixing element 1510, a first cavity element 1520, a second cavity element 1530, a third cavity element 1540 and a second connecting element 1550. The first cavity element 1520 is arranged on the first side of the second fixing element 1510 and connected with the third end of the multi-link motion unit 1200; the second cavity element 1530 is arranged on the second side of the second fixing element 1510 and connected with the fourth end of the multi-link motion unit 1200; the third cavity element 1540 is arranged on the second end of the second fixing element 1510 and rotatably connected with the second end of the multi-link motion unit 1200; and the second connecting element 1550 is arranged on the first end of the second fixing element 1510 and connected with the connecting unit 1600.

[0218] Specifically, the first cavity element 1520 is connected with the second rotating shaft element 1230 and rotatably connected with the first link element 1250; the second cavity element 1530 is connected with the third rotating shaft element 1240 and rotatably connected with the second link element 1260; and the third cavity element 1540 is rotatably connected with the second link element 1260.

[0219] The second fixing element 1510 is located above the first fixing element 1410. The first link element 1250 and the first and third ends of the second link element 1260 are arranged inside the second fixing element 1510, and the second end of the second link element 1260 protrudes from the second fixing element 1510.

[0220] In some embodiments, the second fixing element 1510 is a first fixing bracket.

[0221] The first cavity element 1520 is arranged through the second fixing element 1510.

[0222] In some embodiments, the first cavity element 1520 comprises a first rotating cavity and two first mounting holes. The first rotating cavity is arranged in the second fixing element 1510 and used for accommodating the first link element 1250; and the two first mounting holes are symmetrically arranged on the two sides of the first rotating cavity, respectively arranged through the second fixing element 1510 and connected with the second rotating shaft element 1230.

[0223] The size of the first rotating cavity matches the size of the first link element 1250. Generally, the width of the first rotating cavity is not less than the thickness of the first link element 1250.

[0224] The size of the first mounting hole matches the size of the second rotating shaft element 1230. Generally, the radial size of the first mounting hole is equal to the radial size of the second rotating shaft element 1230.

[0225] Further, the first cavity element 1520 further comprises two first installation slots. The two first installation slots are symmetrically arranged at two sides of the second fixing element 1510 and coaxially arranged with the first installation hole respectively, for fixing the end of the second rotating shaft element 1230 through a bearing.

[0226] The size of the first installation slot matches the size of the first installation hole. Generally, the radial size of the first installation slot is larger than the radial size of the first installation hole.

[0227] The second cavity element 1530 is arranged through the second fixing element 1510.

[0228] In some embodiments, the second cavity element 1530 comprises a second rotating cavity and two second installation holes. The second rotating cavity is arranged in the second fixing element 1510 for accommodating the first hook rod of the second link element 1261 of the second link element 1260; the two second installation holes are symmetrically arranged at two sides of the second rotating cavity and arranged through the second fixing element 1510 respectively and connected with the third rotating shaft element 1240 respectively.

[0229] The size of the second rotating cavity matches the size of the second link element 1260. Generally, the width of the second rotating cavity is not less than the thickness of the second link element 1260.

[0230] The size of the second installation hole matches the size of the third rotating shaft element 1240. Generally, the radial size of the second installation hole is equal to the radial size of the third rotating shaft element 1240.

[0231] Further, the second cavity element 1530 further comprises two second installation slots. The two second installation slots are symmetrically arranged at two sides of the second fixing element 1510 and coaxially arranged with the second installation hole respectively, for fixing the end of the second rotating shaft element 1230 through a bearing.

[0232] The size of the second installation slot matches the size of the second installation hole. Generally, the radial size of the second installation slot is larger than the radial size of the second installation hole.

[0233] The third cavity element 1540 is in communication with the first cavity element 1520 and the second cavity element 1530 respectively, for accommodating the support element 1210, the first rotating shaft element 1220, the first link element 1250 and the second link element 1260.

[0234] Generally, the longitudinal section of the third cavity element 1540 is in the shape of 7.

[0235] In some embodiments, the third cavity element 1540 is a third rotating cavity.

[0236] The second connecting element 1550 is arranged at the side of the second fixing element 1510.

[0237] In some embodiments, the second connecting element 1550 is a second connecting groove.

[0238] In some embodiments, the second connecting element 1550 is a second connecting hole.

[0239] In some embodiments, the second connecting element 1550 is a combination of a second connecting groove and a second connecting hole.

[0240] As shown in FIG. 16, the connecting unit 1600 comprises a third connecting element 1610. The first end of the third connecting element 1610 is connected with the first fixing unit 1400, and the second end of the third connecting element 1610 is connected with the second fixing unit 1500. Figure 8 Specifically, the first end of the third connecting element 1610 is connected with the first connecting element 1420, and the second end of the third connecting element 1610 is connected with the second connecting element 1550.

[0241] More specifically, the first end of the third connecting element 1610 is connected with the first connecting piece 1423.

[0242] The third connecting element 1610 comprises a substrate piece 1611, a second connecting piece 1612 and a third connecting piece 1613. The substrate piece 1611 is arranged between the first fixing unit 1400 and the second fixing unit 1500. The second connecting piece 1612 is arranged at the first end of the substrate piece 1611 and connected with the first fixing unit 1400. The third connecting piece 1613 is arranged at the second end of the substrate piece 1611 and connected with the second fixing unit 1500.

[0243] The cross section of the substrate piece 1611 is rectangular, T-shaped, H-shaped, etc.

[0244] In some embodiments, the substrate piece 1611 comprises a first substrate and a second substrate. The first substrate is provided with the second connecting piece 1612. The second substrate is arranged on top of the first substrate and provided with the third connecting piece 1613.

[0245] The size of the first substrate matches the size of the first connecting piece 1423. Generally, the radial dimension (e.g. width) of the first substrate is not less than the radial dimension (e.g. width) of the first connecting piece 1423.

[0246] The size of the second substrate matches the size of the second connecting element 1550. Generally, the radial dimension (e.g. width) of the second substrate is not less than the radial dimension (e.g. width) of the second connecting element 1550.

[0247] In some embodiments, the second connecting element 1550 is a second connecting groove. In some embodiments, the second connecting element 1550 is a second connecting hole. In some embodiments, the second connecting element 1550 is a combination of a second connecting groove and a second connecting hole.

[0248] The size of the second substrate matches the size of the first substrate. Generally, the width of the second substrate is greater than the width of the first substrate.

[0249] The second connecting member 1612 is disposed through the substrate member 1611 (the first substrate).

[0250] In some embodiments, the second connecting member 1612 is a plurality of second connecting members. The plurality of second connecting members 1612 are spaced along the height direction of the first substrate.

[0251] The size of the second connecting member 1612 matches the size of the substrate member 1611. Generally, the radial dimension (e.g. diameter) of the second connecting member 1612 is less than the radial dimension (e.g. length, height) of the first substrate.

[0252] The size of the second connecting member 1612 matches the size of the first connecting member 1423. Generally, the radial dimension (e.g. diameter) of the second connecting member 1612 is equal to the radial dimension (e.g. diameter) of the first connecting member 1423.

[0253] In some embodiments, the second connecting member 1612 is a second connecting hole.

[0254] The third connecting member 1613 is disposed through the substrate member 1611 (the second substrate).

[0255] In some embodiments, the third connecting member 1613 is a plurality of third connecting members. The plurality of third connecting members 1613 are spaced along the length direction of the second substrate.

[0256] The size of the third connecting member 1613 matches the size of the substrate member 1611. Generally, the radial dimension (e.g. diameter) of the third connecting member 1613 is less than the radial dimension (e.g. length, height) of the second substrate.

[0257] The size of the third connecting member 1613 matches the size of the second connecting member 1550. Generally, the radial dimension (e.g. diameter) of the third connecting member 1613 is equal to the radial dimension (e.g. diameter) of the second connecting member 1550.

[0258] In some embodiments, the third connecting member 1613 is a third connecting hole.

[0259] Embodiment 3

[0260] This embodiment relates to the mechanical blocking device of the present application.

[0261] One illustrative embodiment of the present application is as follows: Figure 9As shown in FIG. 10, a mechanical blocking device 2000 cooperates with the electric blocking device 1000 described in Embodiments 1-2, and includes a rotating unit 2100 and a second guiding unit 2200. The rotating unit 2100 is disposed on the side of the second end of the multi-link movement unit 1200, and the second guiding unit 2200 is disposed on the second end of the rotating unit 2100 and cooperates with the first guiding unit 1300 to reciprocate between the vertical direction and the horizontal direction under the action of the first guiding unit 1300.

[0262] As shown in FIG. 11, the rotating unit 2100 includes a fourth rotating shaft element 2110 and a rotating element 2120. The fourth rotating shaft element 2110 is disposed on the side of the second end of the multi-link movement unit 1200, and the first end of the rotating element 2120 is rotationally connected to the fourth rotating shaft element 2110. The second end of the rotating element 2120 is provided with the second guiding unit 2200, and the rotating element 2120 rotates about the fourth rotating shaft element 2110 under the action of the second guiding unit 2200. Figure 10

[0263] The fourth rotating shaft element 2110 is parallel to the third rotating shaft element 1240 in the axial direction.

[0264] In some embodiments, the fourth rotating shaft element 2110 is a fourth rotating shaft.

[0265] The rotating element 2120 is hook-shaped. Specifically, the rotating element 2120 includes a second hook rod, a rotating rod, and a fifth mounting element. The third end of the second hook rod is rotationally connected to the fourth rotating shaft element 2110, the first end of the rotating rod is connected to the second end of the second hook rod, and the fifth mounting element is disposed on the second end of the rotating rod and connected to the second guiding unit 2200.

[0266] The cross section of the second hook rod is triangular.

[0267] The size of the second hook rod matches the size of the fourth rotating shaft element 2110. Generally, the radial dimension of the second hook rod is greater than the radial dimension of the fourth rotating shaft element 2110, and the axial dimension (e.g., thickness) of the second hook rod is less than the axial dimension of the fourth rotating shaft element 2110.

[0268] Generally, the rotating rod and the second hook rod are integrally formed.

[0269] The size of the rotating rod matches the size of the second hook rod. Generally, the radial dimension of the rotating rod is less than the radial dimension of the second hook rod, and the axial dimension of the rotating rod is not greater than the axial dimension of the second hook rod.

[0270] The fifth mounting element can or can not pass through the rotating rod.

[0271] ​In some embodiments, the fifth mounting member is a plurality of fifth mounting members. The plurality of fifth mounting members are spaced along the axial direction of the rotating rod.

[0272] The fifth mounting member is sized to match the size of the rotating rod. Generally, the radial dimension of the fifth mounting member is smaller than the radial dimension of the rotating rod.

[0273] In some embodiments, the fifth mounting member is a fifth mounting groove or a fifth mounting protrusion.

[0274] As shown in FIG. 2, the second guiding unit 2200 includes a second mounting element 2210 and a second guiding element 2220. The second mounting element 2210 is arranged at the second end of the rotating unit 2100. The second guiding element 2220 is arranged outside the second mounting element 2210. The first end of the second guiding element 2220 has a larger radial dimension than the second end of the second guiding element 2220. The second guiding element 2220 cooperates with the first guiding unit 1300 to drive the rotating unit 2100 to reciprocate between the vertical direction and the horizontal direction under the action of the first guiding unit 1300. Figure 11 Specifically, the second mounting element 2210 is arranged at the second end of the rotating element 2120. The second guiding element 2220 cooperates with the first guiding element 1320.

[0275] More specifically, the second guiding element 2220 cooperates with the guide wheel 1321.

[0276] In some embodiments, the second mounting element 2210 includes a second base member and a sixth mounting member. The second base member is arranged at the second end of the rotating element 2120 (rotating rod). The sixth mounting member is arranged at the second base member and connected to the rotating element 2120 (fifth mounting member).

[0277] The second base member is sized to match the size of the rotating rod. Generally, the radial dimension of the second base member is not greater than the radial dimension of the rotating rod, and the axial dimension of the second base member is smaller than the axial dimension of the rotating rod.

[0278] The sixth mounting member is connected to the fifth mounting member. Generally, the sixth mounting member is detachably connected to the fifth mounting member, including but not limited to plug-in connection, bolt connection, etc.

[0279] The sixth mounting member can be arranged through the second base member or not.

[0280] In some embodiments, the sixth mounting member is a plurality of sixth mounting members. The plurality of sixth mounting members are spaced along the axial direction of the second base member.

[0281] In some embodiments, the sixth mounting member is a plurality of sixth mounting members. The plurality of sixth mounting members are spaced along the axial direction of the second base member.

[0282] The sixth mounting member is sized to match the second base member. Generally, the radial dimension of the sixth mounting member is smaller than the radial dimension of the second base member.

[0283] The sixth mounting member is sized to match the fifth mounting member. Generally, the radial dimension of the sixth mounting member is equal to the radial dimension of the fifth mounting member.

[0284] In some embodiments, the sixth mounting member is a sixth mounting groove, a sixth mounting protrusion.

[0285] Generally, the fifth mounting member and the sixth mounting member are mounted as follows:

[0286] 1) the fifth mounting member is a fifth mounting groove, the sixth mounting member is a sixth mounting protrusion, and the fifth mounting member and the sixth mounting member are interference fitted;

[0287] 2) the fifth mounting member is a fifth mounting protrusion, the sixth mounting member is a sixth mounting groove, and the fifth mounting member and the sixth mounting member are interference fitted;

[0288] 3) the fifth mounting member is a fifth mounting groove, the sixth mounting member is a sixth mounting groove, and the fifth mounting member and the sixth mounting member are bolted and nutted.

[0289] The second guide member 2220 has a cross section in the shape of a trapezoid, i.e., wide at the bottom and narrow at the top, similar to a funnel shape.

[0290] The second guide member 2220 is sized to match the second mounting member 2210. Generally, the axial dimension of the second guide member 2220 is greater than the axial dimension of the second mounting member 2210. That is, there is a gap between the first end of the second guide member 2220 and the first end of the second mounting member 2210.

[0291] The second guide member 2220 is sized to match the first guide member 1320. Generally, the radial dimension of the second guide member 2220 is not less than the radial dimension of the first guide member 1320 (the guide wheel member 1321). The purpose of this design is that, in the case where the second guide member 2220 and the first guide member 1320 are not completely parallel (e.g., the second guide member 2220 is tilted or the first guide member 1320 is tilted), the guide wheel member 1321 can enter the interior of the second guide member 2220 along the first end of the second guide member 2220 and move along the edge of the second guide member 2220 toward the second end of the second guide member 2220, so that the second guide member 2220 and the first guide member 1320 are in a completely parallel state.

[0292] Generally, the second guide element 2220 comprises a guide base, a first guide slot and a second guide slot. The guide base is arranged outside the rotating rod; the first guide slot is arranged at the first end of the guide base; and the second guide slot is arranged at the second end of the guide base and communicates with the first guide slot.

[0293] The first guide slot has a trapezoidal cross section, i.e., the radial dimension of the first guide slot decreases from the first end to the second end. The radial dimension of the second end of the first guide slot is equal to the radial dimension of the guide wheel 1321.

[0294] The second guide slot has a rectangular cross section, i.e., the radial dimension of the second guide slot remains unchanged from the first end to the second end. The radial dimension of the second guide slot is equal to the radial dimension of the guide wheel 1321.

[0295] After the guide wheel 1321 enters the second guide slot from the first guide slot, the first guide element 1320 can drive the second guide element 2220 to reciprocate between the vertical direction and the horizontal direction.

[0296] The use method of the present application is as follows:

[0297] (I) First working state

[0298] When the first guide element 1320 rotates from the vertical direction to the horizontal direction, the first guide element 1320 cooperates with the second guide element 2220 to drive the rotating element 2120 to rotate around the fourth rotating shaft element 2110, and the second guide element 2220 is arranged horizontally.

[0299] (II) Second working state

[0300] When the first guide element 1320 rotates from the horizontal direction to the vertical direction, the first guide element 1320 cooperates with the second guide element 2220 to drive the rotating element 2120 to rotate around the fourth rotating shaft element 2110, and the second guide element 2220 is arranged vertically.

[0301] Example 4

[0302] This embodiment is a variant of example 3.

[0303] As shown in Figure 12 , the mechanical blocking device 2000 further comprises a third fixing unit 2300. The third fixing unit 2300 is arranged at the side of the second end of the multi-link motion unit 1200 and is rotationally connected with the rotating unit 2100.

[0304] As shown in Figure 13As shown, the third fixing unit 2300 comprises a third fixing element 2310 and a fourth cavity element 2320. The third fixing element 2310 is arranged at the side of the second end of the multi-link motion unit 1200; the fourth cavity element 2320 is arranged at the third fixing element 2310 and rotationally connected with the first end of the rotating unit 2100.

[0305] The third fixing element 2310 is arranged at the side of the second end of the second link element 1260 (or the side of the second fixing element 1510); the fourth cavity element 2320 is rotationally connected with the fourth rotating shaft element 2110.

[0306] The top end of the longitudinal section of the third fixing element 2310 is arc-shaped, facilitating the sliding connection with the second guide element 2220 (i.e. sliding between the second guide element 2220 and the space between the second guide element 2220 and the second mounting element 2210).

[0307] The second end of the rotating element 2120 protrudes from the third fixing element 2310, and the second guide element 2220 is located outside the third fixing element 2310.

[0308] In some embodiments, the third fixing element 2310 is a second fixing bracket.

[0309] The fourth cavity element 2320 is arranged through the third fixing element 2310.

[0310] In some embodiments, the fourth cavity element 2320 comprises a fourth rotating cavity, a fifth rotating cavity and two third mounting holes. The fourth rotating cavity is arranged at the third fixing element 2310 and used for accommodating the second hook rod of the rotating element 2120; the fifth rotating cavity is arranged at the third fixing element 2310, in communication with the fourth rotating cavity, and rotationally connected with the rotating element 2120, used for accommodating the rotating rod of the rotating element 2120; the two third mounting holes are symmetrically arranged at the two sides of the fourth rotating cavity, respectively arranged through the third fixing element 2310, and respectively connected with the fourth rotating shaft element 2110.

[0311] The size of the fourth rotating cavity matches the size of the rotating element 2120. Generally, the width of the fourth rotating cavity is not less than the thickness of the rotating element 2120.

[0312] Generally, the longitudinal section of the fifth rotating cavity is in the shape of the letter "7".

[0313] The size of the third mounting hole matches the size of the fourth rotating shaft element 2110. Generally, the radial size of the third mounting hole is equal to the radial size of the fourth rotating shaft element 2110.

[0314] Further, the fourth cavity element 2320 further comprises two third mounting slots. The two third mounting slots are symmetrically arranged at two sides of the third fixing element 2310 and coaxially arranged with the third mounting hole respectively, for fixing the end of the fourth rotating shaft element 2110 through a bearing.

[0315] The size of the third mounting slot is matched with the size of the third mounting hole. Generally, the radial size of the third mounting slot is greater than the radial size of the third mounting hole.

[0316] Embodiment 5

[0317] This embodiment relates to the blocking system of the present application.

[0318] As shown in FIG. 1, one illustrative embodiment of the present application is a blocking system applied to an intelligent storage system, the intelligent storage system comprising a transport cabin and a rack, the rack comprising a plurality of rack layers, the blocking system comprising an electric blocking device 1000 as described in Embodiments 1-2 and a plurality of mechanical blocking devices 2000 as described in Embodiments 3-4. The electric blocking device 1000 is arranged on the transport cabin, and the plurality of mechanical blocking devices 2000 are arranged on the plurality of rack layers along the vertical direction of the rack. Figure 14

[0319] During the upward movement of the electric blocking device 1000 along with the transport cabin, the electric blocking device 1000 cooperates with one mechanical blocking device 2000 to make the transport cabin stop at the rack layer where the mechanical blocking device 2000 is arranged.

[0320] The method for using the present application is as follows:

[0321] In the initial state, the second guide element 2220 of all the mechanical blocking devices 2000 is arranged vertically (or quasi-vertically);

[0322] (I) Upward movement - first working state

[0323] During the upward movement of the transport cabin, the first guide element 1320 of the electric blocking device 1000 moves upward along the second guide element 2220.

[0324] In the case that the transport cabin needs to stop at a certain rack layer, the driving element 1110 is actuated to drive the output shaft element 1120 to move upward, thereby driving the bracket element 1210 to move upward.

[0325] ​In the case that the bracket element 1210 moves upward, since the first rotating shaft element 1220 keeps relatively stationary with the bracket element 1210, the second rotating shaft element 1230 and the third rotating shaft element 1240 keep stationary, the first connecting rod element 1250 rotates around the second rotating shaft element 1230 (i.e. the first end of the first connecting rod element 1250 moves upward following the first rotating shaft element 1220), and the second connecting rod element 1260 rotates around the third rotating shaft element 1240 (i.e. the first end of the second connecting rod element 1260 moves upward following the first rotating shaft element 1220);

[0326] In the case that the second connecting rod element 1260 rotates around the third rotating shaft element 1240, the first rotating shaft element 1220 slides from the first end of the first sliding element 1262 to the second end of the first sliding element 1262 (i.e. moves from the first end of the second connecting rod element 1260 to the third end of the second connecting rod element 1260), and the first connecting rod element 1250 slides along the second sliding element 1263, so that the second end of the second connecting rod element 1260 gradually changes from the vertical direction to the horizontal direction;

[0327] The guide wheel element 1321 of the first guide element 1320 drives the second guide element 2220 to gradually change from the vertical direction to the horizontal direction at the same time as the first guide element 1320 during the movement of the guide wheel element 1321 along the first guide groove to the second guide groove of the second guide element 2220;

[0328] In the case that the second guide element 2220 contacts the first limiting device (such as a limiting sensor or a physical limiting structure) of the shelf layer, the driving element 1110 stops working, and the transportation cabin stops at the shelf layer;

[0329] (II) upward movement - second working state

[0330] After the goods of the transportation cabin are transferred to the shelf layer (or the goods of the shelf layer are transferred to the transportation cabin), the driving element 1110 works, drives the output shaft element 1120 to move downward, and then drives the bracket element 1210 to move downward;

[0331] In the case that the bracket element 1210 moves downward, since the first rotating shaft element 1220 keeps relatively stationary with the bracket element 1210, the second rotating shaft element 1230 and the third rotating shaft element 1240 keep stationary, the first connecting rod element 1250 rotates around the second rotating shaft element 1230 (i.e. the first end of the first connecting rod element 1250 moves upward following the first rotating shaft element 1220), and the second connecting rod element 1260 rotates around the third rotating shaft element 1240 (i.e. the first end of the second connecting rod element 1260 moves upward following the first rotating shaft element 1220);

[0332] In the case that the second connecting rod element 1260 rotates around the third rotating shaft element 1240, the first rotating shaft element 1220 slides from the first end of the first sliding element 1262 to the second end of the first sliding element 1262 (i.e. moves from the first end of the second connecting rod element 1260 to the third end of the second connecting rod element 1260), the first connecting rod element 1250 slides along the second sliding element 1263, so that the second end of the second connecting rod element 1260 gradually changes from the vertical direction to the horizontal direction;

[0333] The first guide element 1320 drives the second guide element 2220 to gradually change from the vertical direction to the horizontal direction at the same time as the first guide element 1320, at this time the guide wheel element 1321 can move along the second guide groove to the first guide groove, or stay in the second guide groove;

[0334] In the case that the second guide element 2220 contacts the second limiting device (such as a limiting sensor or a physical limiting structure) of the shelf layer, the driving element 1110 stops working, and the transportation cabin can move upwards;

[0335] (Three) downward movement - first working state

[0336] The working process is basically the same as (one), and will not be repeated here;

[0337] (Four) downward movement - second working state

[0338] The working process is basically the same as (two), and will not be repeated here.

[0339] The advantages of the present application are that the resistance blocking device has a simple structure and low cost, without the need to set up expensive driving modules and analog control modules, greatly reducing the installation cost; the mechanical blocking device can withstand a larger axial force, and the dead point position can be used to reduce the force during the stroke process of the resistance blocking device and the mechanical blocking device; it can be maintained for a long time, and only simple maintenance is required during maintenance; installing the resistance blocking device on the transportation cabin and the mechanical blocking device on the shelf can greatly reduce the installation cost.

[0340] The above description is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. Those skilled in the art should be able to realize that any equivalent replacement and obvious changes made by applying the contents of the present application description and drawings should be included in the protection scope of the present application.

Claims

1. An electrical barrier device, characterized in that, The utility model relates to a kind of multi-link motion units and first guiding units, comprising: Drive unit; Multi-link motion unit, the first end of the multi-link motion unit is connected with the output end of the drive unit, for under the action of the drive unit, the first end of the multi-link motion unit reciprocates along the axial direction of the output end of the drive unit, the third end and the fourth end of the multi-link motion unit rotate, the fourth end of the multi-link motion unit reciprocates between vertical direction and horizontal direction, wherein the first end and the second end are two ends of the first direction, the third end and the fourth end are two ends of the second direction, the first direction and the second direction are perpendicular to each other, the first direction is vertical direction, and the second direction is horizontal direction; First guiding unit, the first guiding unit is arranged at the fourth end of the multi-link motion unit, for reciprocating between vertical direction and horizontal direction under the action of the multi-link motion unit; Wherein, the multi-link motion unit comprises: Support element, the first end of the support element is connected with the output end of the drive unit, for reciprocating along the axial direction of the output end of the drive unit under the action of the drive unit, wherein the first end of the support element is the first end of the multi-link motion unit; First rotating shaft element, the first rotating shaft element is arranged at the second end of the support element; Second rotating shaft element, the second rotating shaft element is arranged at the first side of the support element; Third rotating shaft element, the third rotating shaft element is arranged at the second side of the support element; First connecting rod element, the first end of the first connecting rod element is rotationally connected with the first rotating shaft element, the second end of the first connecting rod element is rotationally connected with the second rotating shaft element, for rotating with the second rotating shaft element as the shaft under the action of the support element, wherein the second end of the first connecting rod element is the third end of the multi-link motion unit; Second connecting rod element, the first end of the second connecting rod element is rotationally and slidingly connected with the first rotating shaft element, the first end of the second connecting rod element is slidingly connected with the first end of the first connecting rod element, the second end of the second connecting rod element is provided with the first guiding unit, the third end of the second connecting rod element is rotationally connected with the third rotating shaft element, for rotating with the third rotating shaft element as the shaft under the action of the support element to drive the first guiding unit to reciprocate between vertical direction and horizontal direction, wherein the second end of the second connecting rod element is the second end of the multi-link motion unit, and the third end of the second connecting rod element is the fourth end of the multi-link motion unit; Wherein, the second connecting rod element comprises: Second connecting rod, the second connecting rod is hook-shaped, the first end of the second connecting rod is rotationally connected with the second end of the support element, for rotating with the third end of the second connecting rod as the shaft under the action of the support element to make the second end of the second connecting rod reciprocate between vertical direction and horizontal direction; First sliding member, the first sliding member is arranged at the first end of the second connecting rod and the third end of the second connecting rod, and is slidingly connected with the second end of the support element. A second sliding member is arranged at the first end of the second connecting rod member and is in sliding connection with the first connecting rod element; The second connecting rod member comprises: A first hook rod, the cross section of which is triangular, and the first end to the third end of the first hook rod is provided with the first sliding member and the second sliding member.

2. The electrically resistive barrier device of claim 1, wherein, The driving unit comprises: A driving element; An output shaft element connected with the driving element and the first end of the multi-connecting rod movement unit, for driving the first end of the multi-connecting rod movement unit to reciprocate along the axial direction of the output shaft element under the action of the driving element; and / or The first guide unit comprises: A first mounting element arranged at the second end of the multi-connecting rod movement unit, for reciprocating between the vertical direction and the horizontal direction under the action of the multi-connecting rod movement unit; At least one first guide element arranged at the first mounting element, for reciprocating between the vertical direction and the horizontal direction under the action of the first mounting element.

3. The electrically resistive barrier device of claim 2, wherein, The support element comprises: A shaft sleeve element, the first end of which is connected with the output end of the driving unit, for reciprocating along the axial direction of the output end of the driving unit under the action of the driving unit; A support element, the first end of which is connected with the second end of the shaft sleeve element, the second end of which is rotatably and slidably connected with the first end of the first connecting rod element, and the second end of which is rotatably and slidably connected with the second end of the second connecting rod element; A first rotating element arranged at the second end of the support element and connected with the first rotating shaft element; and / or The first connecting rod element comprises: A first connecting rod element, the first end of which is rotatably connected with the second end of the support element, and the first end of which is slidably connected with the second connecting rod element, for rotating about the second end of the first connecting rod element under the action of the support element; A second rotating element arranged at the first end of the first connecting rod element and rotatably connected with the first rotating shaft element; A third rotating element arranged at the second end of the first connecting rod element and rotatably connected with the second rotating shaft element; and / or The first mounting element comprises: A first base element arranged at the second end of the multi-connecting rod movement unit; A second mounting element arranged at the first base element and connected with the multi-connecting rod movement unit; A third mounting element arranged at the first base element and connected with the first guide element; and / or The first guide element comprises: A guide wheel element; A fourth mounting element arranged at the guide wheel element and connected with the first mounting element.

4. The electrically resistive barrier device of claim 1, wherein, The second connecting rod element further comprises: A first mounting element arranged at the second end of the second connecting rod member and connected with the first guide unit; A fourth rotating element arranged at the third end of the second connecting rod element and rotatably connected with the third rotating shaft element.

5. The electrically resistive barrier device of any of claims 1-4, wherein, Further comprising: A first fixing unit, connected with the driving unit, for fixing the driving unit; A second fixing unit, connected with the multi-link motion unit, for fixing the multi-link motion unit; A connecting unit, connected with the first fixing unit and the second fixing unit respectively.

6. The electrically resistive barrier device of claim 5, wherein, The first fixing unit comprises: A first fixing element, connected with the driving unit, for fixing the driving unit; A first connecting element, provided at the second end of the first fixing element, and connected with the connecting unit; and / or The second fixing unit comprises: A second fixing element; A first cavity element, provided at the first side of the second fixing element, and connected with the third end of the multi-link motion unit; A second cavity element, provided at the second side of the second fixing element, and connected with the fourth end of the multi-link motion unit; A third cavity element, provided at the second end of the second fixing element, and rotatably connected with the second end of the multi-link motion unit; A second connecting element, provided at the first end of the second fixing element, and connected with the connecting unit; and / or The connecting unit comprises: A third connecting element, the first end of which is connected with the first fixing unit, and the second end of which is connected with the second fixing unit.

7. The electrically resistive barrier device of claim 6, wherein, The first fixing element comprises: A bottom plate; A top plate, oppositely arranged with the bottom plate, and between which the driving unit is arranged; A support, connected with the bottom plate and the top plate respectively; A first through hole, provided through the top plate, for the output end of the driving unit to pass through; and / or The first connecting element comprises: A base, provided at the bottom end of the first fixing element; A second through hole, provided through the base, for the output end of the driving unit to pass through; A first connecting piece, provided at the side of the base, and connected with the connecting unit; and / or The third connecting element comprises: A base plate, provided between the first fixing unit and the second fixing unit; A second connecting piece, provided at the first end of the base plate, and connected with the first fixing unit; A third connecting piece, provided at the second end of the base plate, and connected with the second fixing unit.

8. A mechanical barrier device to cooperate with the electrical barrier device of any one of claims 1 to 7, characterized in that, Comprise: A rotating unit, provided at the side of the second end of the multi-link motion unit; A second guide unit, provided at the second end of the rotating unit, and matched with the first guide unit, for reciprocating between the vertical direction and the horizontal direction under the action of the first guide unit.

9. The mechanical barrier device of claim 8, wherein, The rotating unit comprises: A fourth rotating shaft element, provided at the side of the second end of the multi-link motion unit; A rotating element, a first end of the rotating element is rotationally connected with the fourth rotating shaft element, a second end of the rotating element is provided with the second guiding unit, and the rotating element is rotated around the fourth rotating shaft element under the action of the second guiding unit; and / or The second guiding unit comprises: A second mounting element, the second mounting element is arranged at the second end of the rotating element; A second guiding element, the second guiding element is arranged outside the second mounting element, a radial dimension of a first end of the second guiding element is greater than a radial dimension of a second end of the second guiding element, and the second guiding element is matched with the first guiding unit, and the rotating element is reciprocated between the vertical direction and the horizontal direction under the action of the first guiding unit.

10. The mechanical barrier device of claim 9, wherein, Further comprising: A third fixing unit, the third fixing unit is arranged at a side of the second end of the multi-link motion unit, and is rotationally connected with the rotating element.

11. A blocking system for use in a smart warehousing system, the smart warehousing system comprising a transport cage and a rack, the rack comprising a number of rack levels, characterized in that, Comprise: The electric resistance blocking device according to any one of claims 1-7, the electric resistance blocking device is arranged in a transportation cabin; A plurality of mechanical blocking devices according to any one of claims 8-10, the plurality of mechanical blocking devices are arranged in a plurality of shelf layers along a vertical direction of the shelf at intervals; In the process that the electric resistance blocking device moves upward along with the transportation cabin, the electric resistance blocking device is matched with one of the mechanical blocking devices, so that the transportation cabin is stopped at the shelf layer where the mechanical blocking device is arranged.

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