Locking device, foot ring device and foot ring system

Abstract

The invention relates to a locking device, a foot ring device and a foot ring system. The locking device comprises a base unit, a first locking unit, a second locking unit and a third locking unit. The locking device has the advantages that the third locking unit is arranged to be of a structure with the thick upper portion and the thin lower portion, the third locking unit is slidably connected with the first locking unit to change the state of the first locking unit, and then the first locking unit and the second locking unit are locked or unlocked; the relative positions of the base unit, the first locking unit and the second locking unit can be easily fixed, separation is not prone to occurring, and disassembly is easy and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of foot rings, and in particular to a locking device, a foot ring device and a foot ring system for use by mentally ill patients. Background Art

[0002] For mentally ill patients, especially those with severe mental illness or in acute episodes, there is often a risk of escape, self-harm or harming others. This not only poses a threat to the safety of the patients themselves, but also poses a great management challenge to medical and nursing staff.

[0003] In recent years, electronic monitoring equipment has gradually been used in the management of mentally ill patients. For example, GPS-based trackers can monitor the patient's location in real time, but most of the existing electronic monitoring equipment is a bracelet device, and can only monitor the approximate range of the patient, and misjudgment often occurs; secondly, when the existing device often detects that the patient is escaping, it is difficult for the staff to find the patient's actual location in a timely and accurate manner, and the response speed is slow, making it difficult to effectively stop the patient's escape behavior; in addition, since most of the existing monitoring equipment is a bracelet device, it is not practical for some patients who are not convenient to wear a bracelet on their wrists; there are also some foot rings in the existing technology, but few of them are specifically suitable for patients with mental illnesses, such as they do not have anti-disassembly and waterproof functions or have some dangerous factors or their structures are often complex and inconvenient to wear, affecting the patient's daily life.

[0004] The invention aims to solve the problems in the prior art that patients cannot be discovered in time when they escape, there is a lack of anklets suitable for patients with mental illness, and the anklets have a complex structure, making them inconvenient to wear. Summary of the invention

[0005] The purpose of the present invention is to provide a locking device, an anklet device and an anklet system to address the deficiencies in the prior art, so as to solve the problems existing in the related art that patients cannot be discovered in time when escaping, there is a lack of anklets suitable for patients with mental illness, and the anklets have a complex structure making them inconvenient to wear.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A first aspect of the present invention is to provide a locking device for locking a foot ring device, comprising:

[0008] A base unit, the base unit being slidably connected to the foot ring device;

[0009] A first locking unit, wherein the top end of the first locking unit is connected to the bottom end of the base unit and is slidably connected to the foot ring device;

[0010] A second locking unit, wherein the second locking unit is arranged at the bottom end of the first locking unit and is located inside the foot ring device, the top end of the second locking unit is locked and connected to the first locking unit, and the top end of the second locking unit is slidably connected to the bottom end of the base unit;

[0011] a third locking unit, wherein the third locking unit is slidably connected to the base unit, the first locking unit, and the second locking unit respectively;

[0012] Wherein, the locking device includes a locked state and an unlocked state; when the locking device is in the locked state, the third locking unit drives the base unit and the first locking unit to move downward, the top end of the second locking unit protrudes from the top end of the first locking unit and is slidably connected to the bottom end of the base unit, and the first locking unit is locked and connected to the second locking unit; when the locking device is in the unlocked state, the third locking unit drives the base unit and the first locking unit to move upward, the top end of the second locking unit is separated from the bottom end of the base unit, the first locking unit is separated from the second locking unit, and the top end of the second locking unit is located at the bottom end of the first locking unit.

[0013] The second aspect of the present invention is to provide a foot ring device, which cooperates with any locking device as described in the first aspect, and is used by a mentally ill patient, comprising:

[0014] a foot ring unit that is removably worn on the patient's ankle;

[0015] A main body unit, the main body unit is arranged at the first end of the foot ring unit;

[0016] a first fixing unit, the first fixing unit being disposed at a first end of the main unit and being slidably connected to the base unit and the first locking unit of the locking device respectively;

[0017] a second fixing unit, which is disposed at the first end of the main unit and is located at the lower part of the first fixing unit and is locked and connected with the third locking unit of the locking device;

[0018] a third fixing unit, the third fixing unit being arranged at the second end of the foot ring unit and being removably arranged between the first fixing unit and the second fixing unit, the second locking unit of the locking device being arranged inside the third fixing unit and being slidably connected with the base unit and the first locking unit of the locking device respectively, and being used for cooperating with the first fixing unit and the second fixing unit to wear the foot ring unit on the ankle of the patient;

[0019] A position monitoring unit, which is arranged on the main unit and is used to obtain the position information of the patient;

[0020] A control unit is arranged on the main unit and is connected to the main unit and the position monitoring unit respectively.

[0021] In some embodiments, the foot ring unit includes:

[0022] A foot ring element is removably worn on the ankle of a patient, the main body unit is arranged at a first end of the foot ring element, and the third fixing unit is arranged at a second end of the foot ring element.

[0023] In some embodiments, the main unit includes:

[0024] A housing element, wherein the housing element is disposed at the first end of the foot ring unit, and the position monitoring unit and the control unit are disposed inside the housing element;

[0025] An identification element is arranged on a side of the housing element and is connected to the control unit, and is used to read or write patient information to the identification element through a reading and writing device.

[0026] In some embodiments, the first fixing unit includes:

[0027] a first fixing element, the first fixing element being disposed at a first end of the main body unit;

[0028] A twelfth sliding element is disposed through the first fixing element and is slidably connected to the base unit and the first locking unit respectively.

[0029] In some embodiments, the first fixing unit further includes:

[0030] At least one thirteenth sliding element, the thirteenth sliding element is disposed through the first fixing element, is communicated with the twelfth sliding element, and is slidably connected with the base unit.

[0031] In some embodiments, the second fixing unit includes:

[0032] A second fixing element, the second fixing element is arranged at the first end of the main body unit and is located at the bottom end of the first fixing unit;

[0033] A fourteenth sliding element is disposed at the top end of the second fixing element and is slidably connected to the bottom end of the third locking unit.

[0034] In some embodiments, the second fixing unit further includes:

[0035] A fourth locking element, wherein the fourth locking element is disposed at an end portion of the fourteenth sliding element and is locked and connected to a bottom end of the third locking unit.

[0036] In some embodiments, the third fixing unit includes:

[0037] A third fixing element, the third fixing element is arranged at the second end of the foot ring unit and is located between the first fixing unit and the second fixing unit, the second locking unit is arranged inside the third fixing element, and is slidably connected with the base unit and the first locking unit respectively;

[0038] A fifteenth sliding element is disposed through the third fixing element and is slidably connected to the base unit and the first locking unit respectively.

[0039] In some of the embodiments, the third fixing unit further includes:

[0040] At least one sixteenth sliding element, wherein the sixteenth sliding element is disposed at the top end of the third fixing element, is communicated with the fifteenth sliding element, and is slidably connected with the base unit.

[0041] In some of the embodiments, the position monitoring unit includes:

[0042] A positioning element, which is disposed on the main unit and connected to the control unit, and is used to obtain position information of the patient;

[0043] A distance monitoring element is provided on the main unit and connected to the control unit, and is used for monitoring the distance between the foot ring unit and the ground.

[0044] In some embodiments, the control unit includes:

[0045] A control element, which is disposed on the main unit and is connected to the main unit and the position monitoring unit respectively;

[0046] A communication element, connected to the control element and used for communicating with the outside world;

[0047] A power supply element is connected to the control element for supplying power.

[0048] In some of the embodiments, it also includes:

[0049] an anti-breakage unit, the anti-breakage unit being arranged inside the foot ring unit to prevent the foot ring unit from breaking; and / or

[0050] In some of the embodiments, the foot ring unit further includes:

[0051] At least one second chamber element, the second chamber element is arranged inside the foot ring unit, and is used to set the anti-breakage unit.

[0052] In some embodiments, the anti-breakage unit includes:

[0053] At least one anti-breaking element is disposed inside the foot ring unit and is used to increase the toughness of the foot ring unit to prevent the foot ring unit from breaking.

[0054] In some of the embodiments, it also includes:

[0055] A reminder unit is arranged on the main unit and connected to the control unit, and is used for reminding when the patient escapes.

[0056] In some embodiments, the reminder unit includes:

[0057] A first reminder element is arranged on the foot ring unit and connected to the control unit, and is used for making a sound reminder when the patient escapes.

[0058] In some embodiments, the reminder unit includes:

[0059] The second reminder element is arranged on the foot ring unit and connected to the control unit, and is used for providing a light reminder when the patient escapes.

[0060] The third aspect of the present invention is to provide a foot ring system, comprising:

[0061] The locking device according to the first aspect;

[0062] A foot ring device as described in the second aspect.

[0063] In some of the embodiments, the foot ring system further comprises:

[0064] A remote control device is communicatively connected with the control unit of the foot ring device.

[0065] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art: The locking device, foot ring device and foot ring system of the present invention utilize a third locking unit to be set as a structure with a thick upper part and a thin lower part, and is slidably connected with the first locking unit to change the state of the first locking unit, so that the first locking unit and the second locking unit are locked or unlocked, which can not only easily fix the relative positions of the base unit, the first locking unit and the second locking unit, but also are not easy to disengage, and are simple and convenient to disassemble; a position monitoring unit is used to monitor the patient's position information and the height information of the foot ring unit from the ground to determine whether the patient has escape behavior; and a control unit is used to connect with the control system, and a notification can be sent to the management personnel in time when the patient has escape behavior, so that the management personnel can be checked in time and corresponding measures can be taken to prevent the patient from escaping, thereby solving the problem that the patient cannot be discovered in time when escaping; and the first fixing unit, the second fixing unit and the third fixing unit are used to fix the relative positions of the base unit, the first locking unit and the second locking unit, which are not easy to disengage, and are simple and convenient to disassemble; a position monitoring unit is used to monitor the patient's position information and the height information of the foot ring unit from the ground to determine whether the patient has escape behavior; and a control unit is used to connect with the control system, and a notification can be sent to the management personnel in time when the patient has escape behavior, so that the management personnel can be checked in time and corresponding measures can be taken to prevent the patient from escaping, thereby solving the problem that the patient cannot be discovered in time when escaping; and The fixing unit is used in conjunction with the locking device, which has an anti-dismantling function. It can not only easily fix the anklet unit to the patient's leg to prevent the patient from disassembling it, but also does not affect the patient's daily activities, solving the problem of a lack of anklets suitable for patients with mental illness and the complex structure of the anklet making it inconvenient to wear; the anti-breakage unit can effectively prevent the patient from damaging the anklet unit and extend the service life of the anklet unit; the reminder unit can be used to promptly remind the patient when he or she has the behavior of escaping, so as to remind the patient to stop his or her behavior, and help the staff quickly find the patient's location and take remedial measures in time, effectively avoiding the deterioration of the situation, and further solving the problem of the patient not being found in time when escaping; the remote control device can be used to monitor the patient's behavior in all directions, improve the accuracy of monitoring the patient's location information, reduce the misjudgment rate, and make the staff's response more timely and effective.

[0066] The technical solution involved in the present invention complies with relevant laws and regulations and is used with the informed consent of the patient or his / her guardian. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of a locking device according to an embodiment of the present invention; Figure 2 is a schematic diagram of a base unit according to an embodiment of the present invention; Figure 3 is a schematic diagram of a first locking unit according to an embodiment of the present invention; Figure 4 is a schematic diagram of a second locking unit according to an embodiment of the present invention; Figure 5 is a schematic diagram of a third locking unit according to an embodiment of the present invention; Figure 6 is a schematic diagram of a foot ring device according to an embodiment of the present invention (I); Figure 7 is a schematic diagram of a foot ring unit according to an embodiment of the present invention (I); Figure 8is a schematic diagram of a main unit according to an embodiment of the present invention; Fig. 9 is a schematic diagram of a first fixing unit according to an embodiment of the present invention; Fig.10 is a schematic diagram of a second fixing unit according to an embodiment of the present invention; Fig.11 is a schematic diagram of a third fixing unit according to an embodiment of the present invention; Fig.12 is a schematic diagram of a position monitoring unit according to an embodiment of the present invention; Fig.13 is a schematic diagram of a control unit according to an embodiment of the present invention; Fig.14 is a schematic diagram of a foot ring device according to an embodiment of the present invention (II); Fig.15 is a schematic diagram of a foot ring unit according to an embodiment of the present invention (II); Fig.16 is a schematic diagram of an anti-breakage unit according to an embodiment of the present invention; Fig.17 is a schematic diagram of a foot ring device according to an embodiment of the present invention (III); Fig.18 is a schematic diagram of a reminder unit according to an embodiment of the present invention; Fig.19 is a schematic diagram of a foot ring system according to an embodiment of the present invention.

[0067] The accompanying drawings are denoted as follows: 100, locking device; 110, base unit; 111, first base element; 112, first sliding element; 113, second sliding element; 114, first limiting element; 115, first connecting element; 116, third sliding element; 120, first locking unit; 121, second base element; 122, second connecting element; 123, fourth sliding element; 124, fifth sliding element; 125, first locking element; 126, sixth sliding element; 127, seventh sliding element; 128, first chamber element; 129, first elastic element; 130, second locking unit; 131, third base element; 132, eighth sliding element; 133, second locking element; 140, third locking unit; 141, second limiting element; 142, ninth sliding element; 143, tenth sliding element; 144, eleventh sliding element; 145, third limiting element; 146, third locking element; 200, foot ring device; 210, foot ring unit; 211, foot ring element; 212, second chamber element; 220, main unit; 221, shell element; 222, identification element; 230, first fixing unit; 231, first fixing element; 232, twelfth sliding element; 233, thirteenth sliding element; 240, second fixing unit; 241, second fixing element; 242, fourteenth sliding element; 243, fourth locking element; 250, third fixing unit; 251, third fixing element; 252, fifteenth sliding element; 253, sixteenth sliding element; 260, position monitoring unit; 261, positioning element; 262, distance monitoring element; 270, control unit; 271, control element; 272, communication element; 273, power supply element; 280, anti-break unit; 281, anti-break element; 290, reminder unit; 291, first reminder element; 292, second reminder element; 300. Remote control device. DETAILED DESCRIPTION

[0090] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated 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 are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0091] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0092] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0093] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or units (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0094] Example 1

[0095] This embodiment relates to the locking device of the present invention.

[0096] An exemplary embodiment of the present invention is as follows Figure 1 As shown, a locking device 100 is used to lock a foot ring device, including a base unit 110, a first locking unit 120, a second locking unit 130 and a third locking unit 140. The base unit 110 is slidably connected to the foot ring device; the top end of the first locking unit 120 is connected to the bottom end of the base unit 110 and is slidably connected to the foot ring device; the second locking unit 130 is arranged at the bottom end of the first locking unit 120 and is located inside the foot ring device, the top end of the second locking unit 130 is locked and connected to the first locking unit 120, and the top end of the second locking unit 130 is slidably connected to the bottom end of the base unit 110; the third locking unit 140 is slidably connected to the base unit 110, the first locking unit 120, and the second locking unit 130 respectively;

[0097] Among them, the locking device 100 includes a locked state and an unlocked state; when the locking device 100 is in the locked state, the third locking unit 140 drives the base unit 110 and the first locking unit 120 to move downward, the top end of the second locking unit 130 protrudes from the top end of the first locking unit 120, and is slidably connected to the bottom end of the base unit 110, and the first locking unit 120 is locked and connected with the second locking unit 130; when the locking device 100 is in the unlocked state, the third locking unit 140 drives the base unit 110 and the first locking unit 120 to move upward, the top end of the second locking unit 130 is separated from the bottom end of the base unit 110, the first locking unit 120 is separated from the second locking unit 130, and the top end of the second locking unit 130 is located at the bottom end of the first locking unit 120.

[0098] like Figure 2 As shown, the base unit 110 includes a first base element 111, a first sliding element 112, at least one second sliding element 113, at least one first limiting element 114 and at least one first connecting element 115. The first base element 111 is slidably connected to the foot ring device; the first sliding element 112 is arranged through the first base element 111 and is slidably connected to the third locking unit 140; the second sliding element 113 is arranged on the outer wall of the first base element 111 and is slidably connected to the second locking unit 130 and the third locking unit 140 respectively; the first limiting element 114 is arranged on the inner side of the second sliding element 113 and is slidably connected to the second locking unit 130 and the third locking unit 140 respectively, so as to prevent the third locking unit 140 from being separated from the first base element 111; the first connecting element 115 is arranged at the bottom end of the first base element 111 and is connected to the top end of the first locking unit 120.

[0099] The first base element 111 has a circular cross section.

[0100] In some of the embodiments, the first base element 111 is a base.

[0101] The first sliding element 112 is disposed through the upper end surface and the lower end surface of the first base element 111 .

[0102] The size of the first sliding element 112 matches the size of the first base element 111. Generally, the radial size (such as the outer diameter) of the first sliding element 112 is smaller than the radial size (such as the outer diameter) of the first base element 111, and the axial size of the first sliding element 112 is equal to the axial size of the first base element 111.

[0103] In some embodiments, the first sliding element 112 is a first sliding slot.

[0104] The second sliding element 113 is disposed through the upper end surface and the lower end surface of the first base element 111 .

[0105] In some of the embodiments, the second sliding element 113 is disposed through the outer end surface of the first base element 111 .

[0106] The size of the second sliding element 113 matches the size of the first base element 111. Generally, the radial size of the second sliding element 113 is smaller than the radial size (eg, radius) of the first base element 111.

[0107] In some embodiments, there are a plurality of second sliding elements 113 , which are distributed on the outer wall of the first base element 111 .

[0108] In some embodiments, the second sliding element 113 is a second sliding groove.

[0109] The first limiting element 114 is disposed through the lower end surface of the first base element 111 .

[0110] The size of the first limiting element 114 matches the size of the first base element 111. Generally, the radial size (such as length and width) of the first limiting element 114 is smaller than the radial size (such as radius) of the first base element 111, and the axial size of the first limiting element 114 is smaller than the axial size of the first base element 111.

[0111] The size of the first limiting element 114 matches the size of the second sliding element 113. Generally, the axial size of the first limiting element 114 is smaller than the axial size of the second sliding element 113.

[0112] The number of the first limiting elements 114 matches the number of the second sliding elements 113. Generally, the number of the first limiting elements 114 is equal to the number of the second sliding elements 113.

[0113] In some of the embodiments, the first limiting element 114 is a limiting groove.

[0114] In some embodiments, there are a plurality of first connecting elements 115 , and the plurality of first connecting elements 115 are distributed at the bottom end of the first base element 111 .

[0115] In some embodiments, the first connecting element 115 includes but is not limited to a first connecting groove, a first connecting protrusion, and a first connecting thread.

[0116] Furthermore, the base unit 110 further includes at least one third sliding element 116. The third sliding element 116 is disposed on the outer wall of the first base element 111, located on the side of the second sliding element 113, and slidably connected to the foot ring device.

[0117] The size of the third sliding element 116 matches the size of the first base element 111. Generally, the radial size of the third sliding element 116 is smaller than the radial size of the first base element 111, and the axial size of the third sliding element 116 is not larger than the axial size of the first base element 111.

[0118] In some embodiments, there are a plurality of third sliding elements 116 , and the plurality of third sliding elements 116 are distributed on the outer wall of the first base element 111 .

[0119] In some of the embodiments, at least one third sliding element 116 is disposed between two adjacent second sliding elements 113 .

[0120] In some embodiments, the third sliding element 116 is a first sliding block or a third sliding slot.

[0121] like Figure 3 As shown, the first locking unit 120 includes a second base element 121, at least one second connecting element 122, a fourth sliding element 123, at least one fifth sliding element 124 and at least one first locking element 125. The second base element 121 is arranged at the bottom end of the base unit 110; the second connecting element 122 is arranged at the top end of the second base element 121 and connected to the base unit 110; the fourth sliding element 123 is arranged through the second base element 121 and is slidably connected to the third locking unit 140; the fifth sliding element 124 is arranged through the second base element 121 and is connected to the fourth sliding element 123; the first locking element 125 is movably arranged on the fourth sliding element 123, and is slidably connected to the fifth sliding element 124 and the third locking unit 140 respectively, and is used for radial reciprocating motion along the fourth sliding element 123 under the action of the third locking unit 140.

[0122] Specifically, the second base element 121 is disposed at the bottom end of the first base element 111 ; the second connecting element 122 is connected to the first connecting element 115 ; and the fifth sliding element 124 corresponds to the position of the second sliding element 113 .

[0123] The size of the second base element 121 matches the size of the first base element 111. Generally, the radial size (eg, outer diameter) of the second base element 121 is equal to the size (eg, outer diameter) of the first base element 111.

[0124] In some of the embodiments, the second base element 121 is a first support plate.

[0125] The second connection element 122 is connected to the first connection element 115 in a detachable manner, wherein the detachable connection manner includes but is not limited to screw connection.

[0126] The size of the second connection element 122 matches the size of the first connection element 115. Generally, the radial size (eg, outer diameter) of the second connection element 122 is equal to the radial size (eg, outer diameter) of the first connection element 115.

[0127] The number of the second connection elements 122 matches the number of the first connection elements 115. Generally, the number of the second connection elements 122 is equal to the number of the first connection elements 115.

[0128] In some embodiments, there are a plurality of second connection elements 122 , and the plurality of second connection elements 122 are distributed at the bottom end of the second base element 121 .

[0129] In some embodiments, the second connecting element 122 includes but is not limited to a second connecting groove, a second connecting protrusion, and a second connecting thread.

[0130] The size of the fourth sliding element 123 matches the size of the second base element 121. Generally, the radial size (such as the outer diameter) of the fourth sliding element 123 is smaller than the radial size (such as the outer diameter) of the second base element 121, and the height of the fourth sliding element 123 is equal to the height of the second base element 121.

[0131] In some embodiments, the fourth sliding element 123 is a fourth sliding slot.

[0132] In some embodiments, there are a plurality of fifth sliding elements 124 , which are spaced apart and arranged around the center of the fourth sliding element 123 .

[0133] The size of the fifth sliding element 124 matches the size of the second base element 121. Generally, the radial size (such as length and width) of the fifth sliding element 124 is smaller than the radial size (such as radius) of the second base element 121, and the height of the fifth sliding element 124 is equal to the height of the second base element 121.

[0134] The size of the fifth sliding element 124 matches the size of the fourth sliding element 123. Generally, the minimum radial size (eg, inner diameter) of the circular surface formed by the fifth sliding elements 124 is equal to the radial size (eg, outer diameter) of the fourth sliding element 123.

[0135] The size of the fifth sliding element 124 matches the size of the second sliding element 113. Generally, the radial size (such as length and width) of the fifth sliding element 124 is greater than the radial size (such as length and width) of the second sliding element 113.

[0136] The number of the fifth sliding elements 124 matches the number of the second sliding elements 113. Generally, the number of the fifth sliding elements 124 is equal to the number of the second sliding elements 113.

[0137] In some embodiments, the fifth sliding element 124 is a fifth sliding slot.

[0138] The size of the first locking element 125 matches the size of the fifth sliding element 124. Generally, the width of the first locking element 125 is smaller than the width of the fifth sliding element 124, the length of the first locking element 125 is smaller than the length of the first locking element 125, and the height of the first locking element 125 is greater than the height of the fifth sliding element 124.

[0139] The number of the first locking elements 125 matches the number of the fifth sliding elements 124. Generally, the number of the first locking elements 125 is equal to the number of the fifth sliding elements 124.

[0140] In some embodiments, there are multiple first locking elements 125 , and the multiple first locking elements 125 are respectively disposed on corresponding fifth sliding elements 124 .

[0141] In the locked state, several first locking elements 125 are separated from each other, the inner side of the first locking element 125 coincides with the inner wall of the fifth sliding element 124, and the first locking element 125 fills the fifth sliding element 124; when unlocked, several first locking elements 125 are aggregated together, and the first locking element 125 is separated from the fifth sliding element 124.

[0142] In some embodiments, the cross-sectional shape of a plurality of first locking elements 125 when aggregated together is dumbbell-shaped.

[0143] In some embodiments, the first locking element 125 is a first locking block.

[0144] Furthermore, the first locking unit 120 further includes at least one sixth sliding element 126 and at least one seventh sliding element 127. The sixth sliding element 126 is disposed inside the fifth sliding element 124; the seventh sliding element 127 is disposed on the side of the first locking element 125 and is slidably connected to the sixth sliding element 126.

[0145] The size of the sixth sliding element 126 matches the size of the fifth sliding element 124. Generally, the width of the sixth sliding element 126 is smaller than the width of the fifth sliding element 124, and the length of the sixth sliding element 126 is smaller than the length of the sixth sliding element 126 to prevent the first locking element 125 from separating from the fifth sliding element 124.

[0146] The number of the sixth sliding elements 126 matches the number of the fifth sliding elements 124. Generally, the number of the sixth sliding elements 126 is equal to an integral multiple of the number of the fifth sliding elements 124. That is, each fifth sliding element 124 is provided with at least one sixth sliding element 126.

[0147] Generally, at least two sixth sliding elements 126 are disposed on each fifth sliding element 124 .

[0148] In some embodiments, the sixth sliding element 126 is a second sliding block or a sixth sliding slot.

[0149] The seventh sliding element 127 is connected to the first locking element 125 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0150] The size of the seventh sliding element 127 matches that of the first locking element 125. Generally, the radial size (such as outer diameter, length, width) of the seventh sliding element 127 is smaller than the radial size (such as length, width) of the cross section of the first locking element 125 where the seventh sliding element 127 is located.

[0151] The number of the seventh sliding elements 127 matches the number of the first locking elements 125. Generally, the number of the seventh sliding elements 127 is an integer multiple of the number of the first locking elements 125. That is, each first locking element 125 is provided with at least one seventh sliding element 127.

[0152] Generally, each first locking element 125 is provided with at least two seventh sliding elements 127 .

[0153] The number of the seventh sliding elements 127 matches the number of the sixth sliding elements 126. Generally, the number of the seventh sliding elements 127 is equal to the number of the sixth sliding elements 126.

[0154] In some embodiments, the seventh sliding element 127 is a third sliding block or a seventh sliding slot.

[0155] Furthermore, the first locking unit 120 further includes a plurality of first chamber components 128 and at least one first elastic component 129. The plurality of first chamber components 128 are respectively disposed through the corresponding first locking components 125; the first elastic component 129 is disposed in the plurality of first chamber components 128 to drive the plurality of first locking components 125 to move.

[0156] The size of the first chamber element 128 matches the size of the first locking element 125. Generally, the radial dimension (such as outer diameter) of the cross section of the first chamber element 128 is smaller than the radial dimension (such as length, width) of the cross section of the first locking element 125 where it is located.

[0157] The number of the first chamber elements 128 matches the number of the first locking elements 125. Generally, the number of the first chamber elements 128 is equal to an integer multiple of the number of the first locking elements 125. That is, each first locking element 125 is provided with at least one first chamber element 128.

[0158] In some of the embodiments, the first chamber component 128 is a first channel.

[0159] The size of the first elastic element 129 matches that of the fourth sliding element 123. Generally, the minimum radial size (eg, outer diameter) of the ring formed by the first elastic element 129 in the naturally contracted state is not greater than the radial size (eg, outer diameter) of the fourth sliding element 123.

[0160] The size of the first elastic element 129 matches the size of the first chamber element 128. Generally, the radial dimension (eg, outer diameter) of the cross section of the first elastic element 129 is smaller than the radial dimension (eg, inner diameter) of the first chamber element 128.

[0161] The number of the first elastic elements 129 matches the number of the first chamber elements 128. Generally, the number of the first elastic elements 129 is equal to the number of the first chamber elements 128 provided for each first locking element 125.

[0162] In some embodiments, there are multiple first elastic elements 129. The multiple first elastic elements 129 are arranged in parallel in the vertical direction.

[0163] In some embodiments, the first elastic element 129 includes but is not limited to an elastic steel wire.

[0164] In some embodiments, the first locking unit 120 further includes at least one second elastic element, wherein the second elastic element is disposed between the fourth sliding element 123 and the first locking element 125 .

[0165] The second elastic element is connected to the fourth sliding element 123 and the first locking element 125 by fixed connection, wherein the fixed connection method includes but is not limited to welding.

[0166] The number of the second elastic elements matches the number of the fourth sliding elements 123 (first locking elements 125). Generally, the number of the second elastic elements is equal to an integer multiple of the number of the fourth sliding elements 123 (first locking elements 125), that is, at least one second elastic element is disposed between each fourth sliding element 123 and the first locking element 125.

[0167] In some embodiments, the second elastic element is a first spring.

[0168] In some embodiments, the first locking unit 120 further includes at least one third elastic element, wherein the third elastic element is disposed between two adjacent first locking elements 125 .

[0169] The second elastic element 120 and the first locking element 125 are connected in a fixed connection, wherein the fixed connection includes but is not limited to welding.

[0170] The number of the second elastic elements matches the number of the first locking elements 125. Generally, the number of the second elastic elements=N*(the number of the first locking elements 125-1), wherein N≥1.

[0171] In some of the embodiments, the third elastic element is a second spring.

[0172] In the present invention, the first locking unit 120 includes any one or a combination of the first elastic element 129, the second elastic element, and the third elastic element.

[0173] like Figure 4 As shown, the second locking unit 130 includes a third base element 131, an eighth sliding element 132 and at least one second locking element 133. The third base element 131 is arranged at the bottom end of the first locking unit 120 and is located inside the foot ring device; the eighth sliding element 132 is arranged through the third base element 131 and is slidably connected with the third locking unit 140; the second locking element 133 is arranged at the top end of the third base element 131, the top end of the second locking element 133 is locked and connected with the first locking unit 120, and the top end of the second locking element 133 is slidably connected with the bottom end of the base unit 110.

[0174] Specifically, the third base element 131 is disposed at the bottom end of the second base element 121 ; the second locking element 133 passes through the fifth sliding element 124 and enters the second sliding element 113 , and is locked and connected with the first locking element 125 .

[0175] The size of the third base element 131 matches the size of the second base element 121. Generally, the radial size (eg, outer diameter) of the third base element 131 is not less than the radial size (eg, outer diameter) of the second base element 121.

[0176] In some of the embodiments, the third base element 131 is a second support plate.

[0177] The size of the eighth sliding element 132 matches the size of the third base element 131. Generally, the radial size (eg, outer diameter) of the eighth sliding element 132 is smaller than the radial size (eg, outer diameter) of the third base element 131.

[0178] In some embodiments, the eighth sliding element 132 is an eighth sliding slot.

[0179] The second locking element 133 and the third base element 131 are connected in a fixed connection, wherein the fixed connection method includes but is not limited to integral molding and welding.

[0180] The size of the second locking element 133 matches the size of the third base element 131. Generally, the radial size (such as length, width) of the second locking element 133 is smaller than the radial size (such as outer diameter) of the third base element 131.

[0181] The size of the second locking element 133 matches the size of the fifth sliding element 124. Generally, the radial size (such as length and width) of the second locking element 133 is not greater than the radial size (such as length and width) of the fifth sliding element 124, and the height of the second locking element 133 is greater than the height of the fifth sliding element 124.

[0182] The size of the second locking element 133 matches the size of the second sliding element 113. Generally, the radial size (such as length and width) of the second locking element 133 is not greater than the radial size (such as length and width) of the second sliding element 113, and the height of the second locking element 133 is less than the height of the second sliding element 113.

[0183] The number of the second locking elements 133 matches the number of the fifth sliding elements 124 (first locking elements 125). Generally, the number of the second locking elements 133 is equal to the number of the fifth sliding elements 124 (first locking elements 125).

[0184] In some embodiments, there are multiple second locking elements 133 , which are spaced apart with the center of the eighth sliding element 132 as the center.

[0185] In some of the embodiments, the second locking element 133 is shaped like an inverted vertical hook or an inverted “T” shape.

[0186] In some embodiments, the second locking element 133 is an elastic sheet.

[0187] like Figure 5As shown, the third locking unit 140 includes a second limiting element 141, a ninth sliding element 142, a tenth sliding element 143, an eleventh sliding element 144 and at least one third limiting element 145. The second limiting element 141 is movably disposed at the top of the base unit 110 to prevent the third locking unit 140 from being separated from the base unit 110; the ninth sliding element 142 is disposed at the bottom of the second limiting element 141 and is slidably connected to the base unit 110 and the first locking unit 120 respectively, and is used to lock the first locking unit 120 with the second locking unit 130 in the case of downward movement, and to unlock the first locking unit 120 with the second locking unit 130 in the case of upward movement; the tenth sliding element 143 is disposed at the ninth sliding element The bottom end of the second limiting element 141 is provided, and is slidably connected to the first locking unit 120 and the second locking unit 130 respectively. The radial dimension of the tenth sliding element 143 is smaller than the radial dimension of the ninth sliding element 142. The eleventh sliding element 144 is provided at the bottom end of the second limiting element 141, and is located outside the ninth sliding element 142, and is slidably connected to the base unit 110. A plurality of third limiting elements 145 are provided at the end of the tenth sliding element 143, and are slidably connected to the base unit 110, so as to prevent the third locking unit 140 from being separated from the base unit 110.

[0188] Specifically, the second limiting element 141 is arranged at the top of the first base element 111 and is limitedly connected to the first sliding element 112; the ninth sliding element 142 is slidingly connected to the first sliding element 112 and the fourth sliding element 123; the eleventh sliding element 144 is slidingly connected to the eighth sliding element 132; the third limiting element 145 is limitedly connected to the first limiting element 114, for preventing the eleventh sliding element 144 from separating from the second sliding element 113.

[0189] The size of the second limiting element 141 matches the size of the first sliding element 112. Generally, the radial size (eg, outer diameter) of the second limiting element 141 is greater than the radial size (eg, outer diameter) of the first sliding element 112.

[0190] In some of the embodiments, the second limiting element 141 is a first limiting block.

[0191] The ninth sliding element 142 is connected to the second limiting element 141 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0192] The size of the ninth sliding element 142 matches the size of the first sliding element 112. Generally, the radial size (eg, outer diameter) of the ninth sliding element 142 is smaller than the radial size (eg, inner diameter) of the first sliding element 112.

[0193] The size of the ninth sliding element 142 matches the size of the fourth sliding element 123. Generally, the radial size (eg, outer diameter) of the ninth sliding element 142 is not greater than the radial size (eg, inner diameter) of the fourth sliding element 123.

[0194] In some embodiments, the ninth sliding element 142 is a first sliding rod.

[0195] The tenth sliding element 143 is connected to the ninth sliding element 142 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0196] The size of the tenth sliding element 143 matches the size of the eighth sliding element 132. Generally, the radial size (such as the outer diameter) of the tenth sliding element 143 is not greater than the radial size (such as the inner diameter) of the eighth sliding element 132, and the height of the tenth sliding element 143 is greater than the height of the eighth sliding element 132.

[0197] The size of the tenth sliding element 143 matches the size of the ninth sliding element 142. Generally, the radial size (eg, outer diameter) of the tenth sliding element 143 is smaller than the radial size (eg, inner diameter) of the ninth sliding element 142.

[0198] In some embodiments, the tenth sliding element 143 is a second sliding rod.

[0199] The eleventh sliding element 144 is connected to the second limiting element 141 in a fixed connection, wherein the fixed connection method includes but is not limited to integral molding and welding.

[0200] The size of the eleventh sliding element 144 matches the size of the second sliding element 113. Generally, the radial size (such as length and width) of the eleventh sliding element 144 is smaller than the radial size (such as length and width) of the second sliding element 113, and the height of the eleventh sliding element 144 is smaller than the height of the second sliding element 113.

[0201] The size of the eleventh sliding element 144 matches the number of the second sliding elements 113. Generally, the number of the eleventh sliding element 144 is equal to the number of the second sliding elements 113.

[0202] The size of the eleventh sliding element 144 matches the size of the first limiting element 114. Generally, the radial size (such as length and width) of the eleventh sliding element 144 is smaller than the radial size (such as length and width) of the first limiting element 114.

[0203] In some embodiments, there are multiple eleventh sliding elements 144 , and the multiple eleventh sliding elements 144 are evenly distributed around the center of the second limiting element 141 .

[0204] In some embodiments, the eleventh sliding element 144 is a fourth sliding block.

[0205] The third limiting element 145 is connected to the second limiting element 141 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0206] The size of the third limiting element 145 matches the size of the second sliding element 113. Generally, the radial size (such as length and width) of the third limiting element 145 is smaller than the radial size (such as length and width) of the second sliding element 113.

[0207] The size of the third limiting element 145 matches the size of the first limiting element 114. Generally, the radial size (such as length and width) of the third limiting element 145 is greater than the radial size (such as length and width) of the first limiting element 114.

[0208] The size of the third limiting element 145 matches the size of the eleventh sliding element 144. Generally, the radial size (such as length and width) of the third limiting element 145 is greater than the radial size (such as length and width) of the eleventh sliding element 144.

[0209] The number of the third limiting elements 145 matches the number of the first limiting elements 114. Generally, the number of the third limiting elements 145 is equal to the number of the first limiting elements 114.

[0210] In some embodiments, there are a plurality of third limiting elements 145 , and the plurality of third limiting elements 145 are respectively disposed at the bottom ends of the corresponding eleventh sliding elements 144 .

[0211] In some of the embodiments, the third limiting element 145 is a second limiting block.

[0212] Furthermore, the third locking unit 140 further includes a third locking element 146. The third locking element 146 is disposed at the bottom end of the tenth sliding element 143 and is locked and connected to the foot ring device.

[0213] The third locking element 146 is connected to the tenth sliding element 143 in a fixed connection, wherein the fixed connection includes but is not limited to a glue fixed connection.

[0214] The size of the third locking element 146 matches the size of the tenth sliding element 143. Generally, the radial size (eg, outer diameter) of the third locking element 146 is equal to the radial size (eg, outer diameter) of the bottom end of the tenth sliding element 143.

[0215] In some embodiments, the third locking element 146 is a first magnet.

[0216] The method of using the present invention:

[0217] (I) Locking

[0218] When locked, the third base element 131 is in a fixed state; the second limiting element 141 is pushed to move along the first sliding element 112 toward the first base element 111, and the plurality of eleventh sliding elements 144 are driven to slide relative to the corresponding plurality of second sliding elements 113, the second base element 121 approaches the third base element 131, and the plurality of second locking elements 133 respectively enter the corresponding fifth sliding element 124 and the second sliding element 113, and abut against the bottom end of the third limiting element 145; the ninth sliding element 142 pushes the plurality of first locking elements 125 to slide on the corresponding fifth sliding element 124 and separate from each other, so that the first locking elements 125 respectively clamp the corresponding second locking elements 133, the first elastic element 129 is in an open state, and the tenth sliding element 143 enters the eighth sliding element 132.

[0219] (II) Unlock

[0220] The second limiting element 141 is pulled away from the first base element 111, thereby driving the ninth sliding element 142 to move upward, and the first limiting element 114 limits the position of the third limiting element 145 to prevent the eleventh sliding element 144 from sliding out of the corresponding second sliding element 113; the ninth sliding element 142 is separated from the first locking element 125, the first elastic element 129 contracts, and a plurality of seventh sliding elements 127 slide relative to the corresponding sixth sliding element 126, and a plurality of first locking elements 125 aggregate to release the lock on the second locking element 133, and the second locking element 133 slides out of the second sliding element 113 and the fifth sliding element 124.

[0221] The technical effects of the present invention are as follows: the third locking unit is set to a structure that is thick at the top and thin at the bottom, and is slidably connected to the first locking unit to change the state of the first locking unit, so that the first locking unit and the second locking unit are locked or unlocked, which not only can easily fix the relative positions of the base unit, the first locking unit, and the second locking unit, which are not easy to detach, but also simple and convenient to disassemble.

[0222] Example 2

[0223] This embodiment relates to the foot ring device of the present invention.

[0224] An exemplary embodiment of the present invention is as follows Figure 6As shown, an anklet device 200, which cooperates with the locking device 100 described in Example 1, is used for use by mentally ill patients, and includes an anklet unit 210, a main body unit 220, a first fixing unit 230, a second fixing unit 240, a third fixing unit 250, a position monitoring unit 260 and a control unit 270. The anklet unit 210 can be removably worn on the ankle of the patient; the main body unit 220 is arranged at the first end of the anklet unit 210; the first fixing unit 230 is arranged at the first end of the main body unit 220, and is respectively slidably connected to the base unit 110 and the first locking unit 120 of the locking device 100; the second fixing unit 240 is arranged at the first end of the main body unit 220, and is located at the lower part of the first fixing unit 230, and is locked and connected to the third locking unit 140 of the locking device 100; the third fixing unit 250 is arranged at the second end of the anklet unit 210, and is removably arranged. Placed between the first fixing unit 230 and the second fixing unit 240, the third fixing unit 250 is provided with the second locking unit 130 of the locking device inside, and is respectively slidably connected with the base unit 110 and the first locking unit 120 of the locking device, so as to cooperate with the first fixing unit 230 and the second fixing unit 240 to wear the foot ring unit 210 on the patient's ankle; the position monitoring unit 260 is arranged in the main unit 220, and is used to obtain the patient's position information; the control unit 270 is arranged in the main unit 220, and is respectively connected with the main unit 220 and the position monitoring unit 260.

[0225] like Figure 7 As shown, the foot ring unit 210 includes a foot ring element 211. The foot ring element 211 is removably worn on the ankle of the patient, a first fixing unit 230 and a second fixing unit 240 are arranged at the first end of the foot ring element 211, and a third fixing unit 250 is arranged at the second end of the foot ring element 211; a housing element 221 is arranged at the first end of the foot ring element 211, and a position monitoring unit 260 and a control unit 270 are arranged inside the housing element 221.

[0226] In some of the embodiments, the foot ring element 211 is made of a waterproof material, including but not limited to silicone and plastic.

[0227] In some of the embodiments, the foot ring element 211 is a foot ring.

[0228] like Figure 8 As shown, the main unit 220 includes a housing element 221 and an identification element 222. The housing element 221 is disposed at the first end of the foot ring unit 210, and a position monitoring unit 260 and a control unit 270 are disposed inside the housing element 221; the identification element 222 is disposed at the side of the housing element 221 and is connected to the control unit 270, and is used to read or write patient information to the identification element 222 through a reading and writing device.

[0229] Specifically, the housing element 221 is connected to the first end of the foot ring element 211 .

[0230] The connection between the housing element 221 and the foot ring element 211 is a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0231] The size of the shell element 221 matches the size of the foot ring element 211. Generally, the height of the shell element 221 is not less than the height of the foot ring element 211, and the width of the shell element 221 is greater than the width of the foot ring element 211.

[0232] In some of the embodiments, the side of the shell element 221 close to the ankle is arranged in an arc shape, and the radius of the arc is consistent with the radius of the foot ring element 211.

[0233] In some of the embodiments, the housing element 221 is a housing.

[0234] The identification element 222 and the housing element 221 are connected in a fixed manner, wherein the fixed connection manner includes but is not limited to welding.

[0235] In some embodiments, the identification element 222 is an RFID tag.

[0236] In some of the embodiments, the reading and writing device includes but is not limited to an RFID reader / writer.

[0237] like Fig. 9 As shown, the first fixing unit 230 includes a first fixing element 231 and a twelfth sliding element 232. The first fixing element 231 is disposed at the first end of the main body unit 220; the twelfth sliding element 232 penetrates the first fixing element 231 and is slidably connected to the base unit 110 and the first locking unit 120 respectively.

[0238] Specifically, the first fixing element 231 is disposed at the first end of the housing element 221 ; the twelfth sliding element 232 is slidably connected to the first base element 111 and the second base element 121 , respectively.

[0239] The first fixing element 231 is connected to the housing element 221 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0240] The size of the first fixing element 231 matches the size of the housing element 221. Generally, the height of the first fixing element 231 is smaller than the height of the housing element 221.

[0241] The size of the first fixing element 231 matches the size of the first base element 111. Generally, the radial size (such as the inner diameter) of the first fixing element 231 is larger than the radial size (such as the outer diameter) of the first base element 111, and the axial size of the first fixing element 231 is smaller than the axial size of the first base element 111.

[0242] In some of the embodiments, the first fixing element 231 is a first fixing ring.

[0243] The size of the twelfth sliding element 232 matches the size of the first fixing element 231. Generally, the radial size (such as the inner diameter) of the twelfth sliding element 232 is smaller than the radial size (such as the outer diameter) of the first fixing element 231.

[0244] The size of the twelfth sliding element 232 matches the size of the first base element 111. Generally, the radial size (eg, inner diameter) of the twelfth sliding element 232 is not less than the radial size (eg, outer diameter) of the first base element 111.

[0245] The size of the twelfth sliding element 232 matches the size of the second limiting element 141. Generally, the radial size (such as the inner diameter) of the twelfth sliding element 232 is smaller than the radial size (such as the outer diameter) of the second limiting element 141.

[0246] In some embodiments, the twelfth sliding element 232 is a ninth sliding slot.

[0247] Furthermore, the first fixing unit 230 further includes at least one thirteenth sliding element 233 . The thirteenth sliding element 233 is disposed through the first fixing element 231 , communicates with the twelfth sliding element 232 , and is slidably connected with the base unit 110 .

[0248] Specifically, the thirteenth sliding element 233 is slidably connected to the third sliding element 116 .

[0249] The size of the thirteenth sliding element 233 matches the size of the first fixed element 231. Generally, the radial size (such as outer diameter, length, width) of the thirteenth sliding element 233 is smaller than the radial size (such as outer diameter, length, width) of the first fixed element 231, and the height of the thirteenth sliding element 233 is equal to the height of the first fixed element 231.

[0250] The size of the thirteenth sliding element 233 matches the size of the third sliding element 116. Generally, the radial size (such as length and width) of the thirteenth sliding element 233 is greater than the radial size (such as length and width) of the third sliding element 116, and the height of the thirteenth sliding element 233 is less than the height of the third sliding element 116.

[0251] In some embodiments, there are a plurality of thirteenth sliding elements 233. The plurality of thirteenth sliding elements 233 are distributed and disposed on the side of the twelfth sliding element 232 with the center of the twelfth sliding element 232 as the center of the circle.

[0252] In some embodiments, the thirteenth sliding element 233 is a fifth sliding block or a tenth sliding slot.

[0253] The number of the thirteenth sliding elements 233 matches the number of the third sliding elements 116. Generally, when the thirteenth sliding element 233 is the tenth sliding groove and the third sliding element 116 is the first sliding block, the number of the thirteenth sliding elements 233 is not less than the number of the third sliding elements 116; when the thirteenth sliding element 233 is the fifth sliding block and the third sliding element 116 is the third sliding groove, the number of the thirteenth sliding elements 233 is not greater than the number of the third sliding elements 116; when the thirteenth sliding element 233 is the fifth sliding block and the tenth sliding groove and the third sliding element 116 is the third sliding groove and the first sliding block, the number of the thirteenth sliding elements 233 is equal to the number of the third sliding elements 116.

[0254] like Fig.10 As shown, the second fixing unit 240 includes a second fixing element 241 and a fourteenth sliding element 242. The second fixing element 241 is disposed at the first end of the main body unit 220 and is located at the bottom end of the first fixing unit 230; the fourteenth sliding element 242 is disposed at the top end of the second fixing element 241 and is slidably connected to the bottom end of the third locking unit 140.

[0255] Specifically, the second fixing element 241 is slidably connected to the first end of the housing element 221 ; the fourteenth sliding element 242 is slidably connected to the tenth sliding element 143 .

[0256] The second fixing element 241 is connected to the housing element 221 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0257] The size of the second fixing element 241 matches the size of the housing element 221. Generally, the height of the second fixing element 241 is smaller than the height of the housing element 221.

[0258] The size of the second fixing element 241 matches the size of the first fixing element 231. Generally, the radial size (eg, outer diameter) of the second fixing element 241 is equal to the radial size (eg, outer diameter) of the first fixing element 231.

[0259] In some of the embodiments, the second fixing element 241 is a second fixing ring.

[0260] The size of the fourteenth sliding element 242 matches the size of the second fixing element 241. Generally, the radial size (such as the outer diameter) of the fourteenth sliding element 242 is smaller than the radial size (such as the outer diameter) of the second fixing element 241, and the height of the fourteenth sliding element 242 is smaller than the height of the second fixing element 241.

[0261] The size of the fourteenth sliding element 242 matches the size of the tenth sliding element 143. Generally, the radial size (eg, outer diameter) of the fourteenth sliding element 242 is not less than the radial size (eg, outer diameter) of the tenth sliding element 143.

[0262] In some of the embodiments, the fourteenth sliding element 242 is an eleventh sliding slot.

[0263] Furthermore, the second fixing unit 240 further includes a fourth locking element 243 . The fourth locking element 243 is disposed at the end of the fourteenth sliding element 242 and is locked and connected with the bottom end of the third locking unit 140 .

[0264] Specifically, the fourth locking element 243 is locked and connected to the third locking element 146 .

[0265] The fourth locking element 243 is connected to the second fixing element 241 by fixed connection, wherein the fixed connection method includes but is not limited to hot pressing connection.

[0266] The size of the fourth locking element 243 matches the size of the second fixing element 241. Generally, the radial size (such as outer diameter, length, width) of the fourth locking element 243 is smaller than the radial size (such as outer diameter) of the second fixing element 241, and the height of the fourth locking element 243 is smaller than the height of the second fixing element 241.

[0267] The size of the fourth locking element 243 matches the size of the third locking element 146. Generally, the radial size (eg, outer diameter) of the fourth locking element 243 is not less than the radial size (eg, outer diameter) of the third locking element 146.

[0268] The size of the fourth locking element 243 matches the size of the fourteenth sliding element 242. Generally, the radial size (eg, outer diameter) of the fourth locking element 243 is greater than the radial size (eg, outer diameter) of the fourteenth sliding element 242.

[0269] In some embodiments, the fourth locking element 243 is a second magnet.

[0270] like Fig.11As shown, the third fixing unit 250 includes a third fixing element 251 and a fifteenth sliding element 252. The third fixing element 251 is disposed at the second end of the foot ring unit 210 and is located between the first fixing unit 230 and the second fixing unit 240. The third fixing element 251 is provided with a second locking unit 130, and is removably provided with a base unit 110, a first locking unit 120, and a third locking unit 140, and is slidably connected to the base unit 110 and the first locking unit 120, respectively; the fifteenth sliding element 252 is provided through the third fixing element 251, and is slidably connected to the base unit 110 and the first locking unit 120, respectively.

[0271] Specifically, the third fixing element 251 is disposed at the second end of the foot ring element 211 and is located between the first fixing element 231 and the second fixing element 241. The third fixing element 251 is connected to the third base element 131; the fifteenth sliding element 252 is slidingly connected to the ninth sliding element 142 and the tenth sliding element 143 respectively.

[0272] The third fixing element 251 is connected to the foot ring element 211 by fixed connection, wherein the fixed connection method includes but is not limited to integral molding.

[0273] The third fixing element 251 is connected to the third base element 131 by fixed connection, wherein the fixed connection method includes but is not limited to integral molding and welding.

[0274] The size of the third fixing element 251 matches the size of the third base element 131. Generally, the radial size (eg, outer diameter) of the third fixing element 251 is greater than the radial size (eg, outer diameter) of the third base element 131.

[0275] The size of the third fixing element 251 matches the size of the first fixing element 231 (the second fixing element 241). Generally, the radial size (such as the outer diameter) of the third fixing element 251 is equal to the radial size (such as the outer diameter) of the first fixing element 231 (the second fixing element 241), and the height of the third fixing element 251 is equal to the distance between the bottom end of the first fixing element 231 and the top end of the second fixing element 241.

[0276] In some of the embodiments, the third fixing element 251 is a third fixing ring.

[0277] The size of the fifteenth sliding element 252 matches the size of the third fixing element 251. Generally, the radial size (such as the outer diameter) of the fifteenth sliding element 252 is smaller than the radial size (such as the outer diameter) of the third fixing element 251, and the height of the fifteenth sliding element 252 is equal to the height of the third fixing element 251.

[0278] The size of the fifteenth sliding element 252 matches that of the first base element 111 . Generally, the radial size (eg, outer diameter) of the top end of the fifteenth sliding element 252 is greater than the radial size (eg, outer diameter) of the first base element 111 .

[0279] The size of the fifteenth sliding element 252 matches the size of the third base element 131. Generally, the radial size (eg, outer diameter) of the top end of the fifteenth sliding element 252 is equal to the radial size (eg, outer diameter) of the third base element 131.

[0280] The size of the fifteenth sliding element 252 matches the size of the tenth sliding element 143. Generally, the radial size (eg, outer diameter) of the bottom end of the fifteenth sliding element 252 is greater than the radial size (eg, outer diameter) of the tenth sliding element 143.

[0281] In some embodiments, the fifteenth sliding element 252 is T-shaped. The first locking unit 120 and the second locking unit 130 are removably disposed on the upper portion of the fifteenth sliding element 252 , and the tenth sliding element 143 is removably disposed on the lower portion.

[0282] In some embodiments, the fifteenth sliding element 252 is a twelfth sliding groove.

[0283] Furthermore, the third fixing unit 250 further includes at least one sixteenth sliding element 253 . The sixteenth sliding element 253 is disposed at the top of the third fixing element 251 , communicated with the fifteenth sliding element 252 , and slidably connected with the base unit 110 .

[0284] The size of the sixteenth sliding element 253 matches the size of the fifteenth sliding element 252. Generally, the radial size (such as outer diameter, length) of the sixteenth sliding element 253 is smaller than the radial size (such as outer diameter) of the fifteenth sliding element 252, and the height of the sixteenth sliding element 253 is smaller than the height of the fifteenth sliding element 252.

[0285] The size of the sixteenth sliding element 253 matches the size of the third sliding element 116. Generally, the radial size (eg, outer diameter, length, width) of the sixteenth sliding element 253 is greater than the radial size (eg, length, width) of the third sliding element 116.

[0286] In some embodiments, there are a plurality of sixteenth sliding elements 253. The plurality of sixteenth sliding elements 253 are disposed around the side of the fifteenth sliding element 252 with the center of the fifteenth sliding element 252 as the center of the circle.

[0287] In some of the embodiments, the sixteenth sliding element 253 is a sixth sliding block and a thirteenth sliding slot.

[0288] The number of the sixteenth sliding elements 253 matches the number of the third sliding elements 116. Generally, when the sixteenth sliding element 253 is the thirteenth sliding groove and the third sliding element 116 is the first sliding block, the number of the sixteenth sliding elements 253 is not less than the number of the third sliding elements 116; when the sixteenth sliding element 253 is the sixth sliding block and the third sliding element 116 is the third sliding groove, the number of the sixteenth sliding elements 253 is not greater than the number of the third sliding elements 116; when the sixteenth sliding element 253 is the sixth sliding block and the thirteenth sliding groove and the third sliding element 116 is the third sliding groove and the first sliding block, the number of the sixteenth sliding elements 253 is equal to the number of the third sliding elements 116.

[0289] like Fig.12 As shown, the position monitoring unit 260 includes a positioning element 261 and a distance monitoring element 262. The positioning element 261 is provided in the main unit 220 and connected to the control unit 270 to obtain the patient's position information; the distance monitoring element 262 is provided in the main unit 220 and connected to the control unit 270 to monitor the distance between the foot ring unit 210 and the ground.

[0290] Specifically, the positioning element 261 is disposed inside the housing element 221 ; and the distance monitoring element 262 is disposed inside the housing element 221 .

[0291] In some of the embodiments, the positioning element 261 includes but is not limited to the Beidou positioning system and the GPS positioning system.

[0292] In some of these embodiments, the distance monitoring element 262 includes, but is not limited to, an ultrasonic sensor.

[0293] like Fig.13 As shown, the control unit 270 includes a control element 271, a communication element 272 and a power element 273. The control element 271 is arranged on the side of the foot ring unit 210 and is connected to the main unit 220 and the position monitoring unit 260 respectively; the communication element 272 is connected to the control element 271 for communicating with the outside world; and the power element 273 is connected to the control element 271 for power supply.

[0294] Specifically, the control element 271 is disposed inside the housing element 221 and is connected to the identification element 222 , the positioning element 261 , and the distance monitoring element 262 , respectively.

[0295] In some of the embodiments, the control element 271 includes but is not limited to a single chip microcomputer, a chip, and a processor.

[0296] In some of the embodiments, the communication element 272 includes but is not limited to a Bluetooth module, a WiFi module, a 4G module, and a 5G module.

[0297] The power supply element 273 includes two designs: a detachable design and a non-detachable design. When the power supply element 273 is a detachable design, the power supply element 273 can be replaced; when the power supply element 273 is a non-detachable design, the power supply element 273 can be charged.

[0298] In some embodiments, the power element 273 is a battery, including but not limited to a lithium battery.

[0299] The method of using this embodiment is as follows:

[0300] (1) Foot ring fixation

[0301] When in use, first place the foot ring element 211 on the patient's ankle, place the third fixing element 251 between the first fixing element 231 and the second fixing element 241, and then slide the tenth sliding element 143 and the ninth sliding element 142 with the twelfth sliding element 232 and the fifteenth sliding element 252 respectively; at the same time, the third sliding element 116 slides relatively with the thirteenth sliding element 233 and the sixteenth sliding element 253 respectively until the second base element 121 abuts against the third base element 131, and the steps of Example 1 are adopted, the second locking element 133 is locked and connected with the first locking element 125; the bottom end of the tenth sliding element 143 is slide-connected with the fourteenth sliding element 242, the fourth locking element 243 is locked and connected with the third locking element 146, and the foot ring element 211 is fixed to the patient's leg.

[0302] 2. Patient location information monitoring

[0303] The positioning element 261 monitors the patient's position information in real time. When the patient's position information obtained by the positioning element 261 is not within the preset range, the control element 271 determines that the patient is about to escape; the distance monitoring element 262 monitors the information of the foot ring from the ground in real time. When the distance monitoring element 262 exceeds the preset distance, the control element 271 determines that the patient is about to climb over and escape; when the control element 271 determines that the patient is about to escape, the escape information is transmitted to the management personnel so that the management personnel can check and take measures in time.

[0304] In daily management, the staff can read the information of the identification element 222 through a reading and writing device, and can also write or change the patient information of the identification element 222 as needed.

[0305] (III) Unlock

[0306] When the foot ring device needs to be replaced or charged, a strong magnetic disassembly device is used to release the connection between the fourth locking element 243 and the third locking element 146, and the method and steps of Example 1 are used to release the locked connection between the second locking element 133 and the first locking element 125. The locking device 100 is successively separated from the second fixing element 241, the third fixing element 251 and the first fixing element 231, and the foot ring element 211 can be released.

[0307] The technical effects of this embodiment are as follows: a position monitoring unit is used to monitor the patient's position information and the height information of the anklet unit from the ground to determine whether the patient has escape behavior; and a control unit is used to connect with a control system, so that when the patient shows escape behavior, a notification can be sent to the management personnel in time, so that timely check and take corresponding measures to prevent the patient from escaping, solving the problem that the patient cannot be discovered in time when escaping; and the first fixing unit, the second fixing unit, and the third fixing unit are used in conjunction with the locking device, which has an anti-disassembly function, which can not only easily fix the anklet unit to the patient's leg to prevent the patient from disassembling it, but also does not affect the patient's daily activities, solving the problem of a lack of anklets suitable for patients with mental illness and the complex structure of the anklets making it inconvenient to wear.

[0308] Example 3

[0309] This embodiment is a variation of Embodiment 2.

[0310] like Fig.14 As shown, the foot ring device 200 further includes an anti-breaking unit 280. The anti-breaking unit 280 is disposed inside the foot ring unit 210 to prevent the foot ring unit 210 from breaking.

[0311] like Fig.15 As shown, the foot ring unit 210 further includes at least one second chamber component 212. The second chamber component 212 is disposed inside the foot ring unit 210 and is used to set the anti-breakage unit 280.

[0312] Specifically, the second chamber component 212 is disposed inside the foot ring component 211 .

[0313] The size of the second chamber component 212 matches the size of the foot ring component 211. Generally, the width of the second chamber component 212 is smaller than the thickness of the foot ring component 211, and the height of the second chamber component 212 is smaller than the height of the foot ring component 211.

[0314] In some embodiments, there are multiple second chamber components 212 , which are spaced apart along the height direction of the foot ring component 211 .

[0315] In some of the embodiments, the second chamber component 212 is a second channel.

[0316] like Fig.16 As shown, the anti-breaking unit 280 includes at least one anti-breaking element 281. The anti-breaking element 281 is disposed inside the foot ring unit 210 to increase the toughness of the foot ring unit 210 to prevent the foot ring unit 210 from breaking.

[0317] The anti-break element 281 and the foot ring element 211 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to hot melting; the detachable connection includes but is not limited to plugging.

[0318] The size of the anti-breaking element 281 matches the size of the second chamber element 212. Generally, the radial size (such as the outer diameter) of the anti-breaking element 281 is smaller than the radial size (such as the outer diameter, length, width) of the second chamber element 212, and the length of the anti-breaking element 281 is not greater than the length of the second chamber element 212.

[0319] The number of the anti-breaking elements 281 matches the number of the second chamber elements 212. Generally, the number of the anti-breaking elements 281 is equal to an integral multiple of the number of the second chamber elements 212. That is, each second chamber element 212 is provided with at least one anti-breaking element 281.

[0320] In some embodiments, the anti-breaking element 281 is a soft metal wire, including but not limited to a stainless steel wire.

[0321] The technical effects of this embodiment are as follows: the anti-breakage unit can effectively prevent the patient from damaging the foot ring unit and extend the service life of the foot ring unit.

[0322] Example 4

[0323] This embodiment is a variation of Embodiments 2 to 3.

[0324] like Fig.17 As shown, the foot ring device 200 further includes a reminder unit 290. The reminder unit 290 is disposed on the foot ring unit 210 and connected to the control unit 270, and is used to remind when the patient escapes.

[0325] like Fig.18 As shown, the reminder unit 290 includes a first reminder element 291. The first reminder element 291 is disposed on the foot ring unit 210 and connected to the control unit 270, and is used for sound reminder when the patient escapes.

[0326] Specifically, the first reminding element 291 is disposed on the housing element 221 and connected to the control element 271 .

[0327] In some of the embodiments, the first reminder element 291 may play a reminder sound to remind the patient, or may play a reminder sound to remind the staff.

[0328] In some of the embodiments, the first reminder element 291 includes but is not limited to a speaker and a buzzer.

[0329] Furthermore, the reminder unit 290 further includes a second reminder element 292. The second reminder element 292 is disposed on the foot ring unit 210 and connected to the control unit 270, and is used for light reminder when the patient escapes.

[0330] Specifically, the second reminding element 292 is disposed on the housing element 221 and connected to the control element 271 .

[0331] In some of the embodiments, the second reminder element 292 includes but is not limited to a flashing light.

[0332] The method of using this embodiment is as follows:

[0333] When the control system detects that the patient is about to escape, it controls the first reminder element 291 and the second reminder element 292 to remind the patient at the same time. On the one hand, it reminds the patient to prevent the patient from continuing to escape, and on the other hand, it helps the staff to quickly find the patient and take remedial measures in time.

[0334] The technical effects of this embodiment are as follows: the reminder unit is used to promptly remind the patient when he or she is about to escape, so as to remind the patient to stop his or her behavior, and to help the staff quickly find the patient's location and take remedial measures in time, effectively avoiding the deterioration of the situation, and further solving the problem that the patient's escape cannot be discovered in time.

[0335] Example 5

[0336] This embodiment relates to the foot ring system of the present invention.

[0337] like Fig.19 As shown, a foot ring system includes the locking device 100 as described in Example 1 and the foot ring device 200 as described in any one of Examples 2 to 4.

[0338] Furthermore, the anklet system further includes a remote control device 300 , wherein the remote control device 300 is communicatively connected with the control unit 270 of the anklet device 200 .

[0339] Specifically, the remote control device 300 is communicatively connected with the control element 271 .

[0340] The method of using this embodiment is as follows: when the remote control device 300 detects the patient's escape behavior through other monitoring devices, it matches the location information obtained by the location monitoring unit 260. If it is determined to be an escape behavior, it automatically makes a corresponding response according to the preset, such as a reminder.

[0341] The technical effects of this embodiment are as follows: using the remote control device, the patient's behavior can be monitored in all directions, the accuracy of monitoring the patient's location information can be improved, the misjudgment rate can be reduced, and the staff's response can be more timely and effective.

[0342] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking device for locking a foot ring device, characterized in that: include: A base unit, the base unit being slidably connected to the foot ring device; A first locking unit, wherein the top end of the first locking unit is connected to the bottom end of the base unit and is slidably connected to the foot ring device; A second locking unit, wherein the second locking unit is arranged at the bottom end of the first locking unit and is located inside the foot ring device, the top end of the second locking unit is locked and connected to the first locking unit, and the top end of the second locking unit is slidably connected to the bottom end of the base unit; a third locking unit, wherein the third locking unit is slidably connected to the base unit, the first locking unit, and the second locking unit respectively; Wherein, the locking device includes a locked state and an unlocked state; When the locking device is in a locked state, the third locking unit drives the base unit and the first locking unit to move downward, the top end of the second locking unit protrudes from the top end of the first locking unit and is slidably connected to the bottom end of the base unit, and the first locking unit is locked and connected to the second locking unit; when the locking device is in an unlocked state, the third locking unit drives the base unit and the first locking unit to move upward, the top end of the second locking unit is separated from the bottom end of the base unit, the first locking unit is separated from the second locking unit, and the top end of the second locking unit is located at the bottom end of the first locking unit.

2. The locking device according to claim 1, characterized in that: The base unit comprises: a first base element, the first base element being slidably connected to the foot ring device; a first sliding element, the first sliding element being disposed through the first base element and being slidably connected to the third locking unit; at least one second sliding element, which is disposed on an outer wall of the first base element and is slidably connected to the second locking unit and the third locking unit respectively; at least one first limiting element, which is disposed on the inner side of the second sliding element and is slidably connected to the second locking unit and the third locking unit, respectively, to prevent the third locking unit from being separated from the base element; at least one first connecting element, the first connecting element being disposed at the bottom end of the first base element and connected to the top end of the first locking unit; and / or The first locking unit comprises: a second base element, the second base element being disposed at a bottom end of the base unit; at least one second connecting element, the second connecting element being disposed at a top end of the second base element and connected to the base unit; a fourth sliding element, the fourth sliding element being arranged through the second base element and being slidably connected to the third locking unit; at least one fifth sliding element, the fifth sliding element being disposed through the second base element and being in communication with the fourth sliding element; At least one first locking element, which is movably disposed on the fourth sliding element and slides with the fifth sliding element and is connected to the third locking unit, respectively, and is used for reciprocating along the radial direction of the fourth sliding element under the action of the third locking unit; and / or The second locking unit comprises: A third base element, the third base element is arranged at the bottom end of the first locking unit and is located inside the foot ring device; an eighth sliding element, the eighth sliding element being arranged through the third base element and being slidably connected to the third locking unit; at least one second locking element, the second locking element being disposed at the top end of the third base element, the top end of the second locking element being lockedly connected to the first locking unit, and the top end of the second locking element being slidably connected to the bottom end of the base unit; and / or The third locking unit comprises: a second limiting element, which is movably disposed at a top end of the base unit and is used to prevent the third locking unit from being separated from the base unit; a ninth sliding element, the ninth sliding element being disposed at the bottom end of the second limiting element and being slidably connected to the base unit and the first locking unit, respectively, and being used to lock the first locking unit and the second locking unit in the case of downward movement, and to unlock the first locking unit and the second locking unit in the case of upward movement; a tenth sliding element, which is disposed at the bottom end of the ninth sliding element and is slidably connected to the first locking unit and the second locking unit, respectively, and a radial dimension of the tenth sliding element is smaller than a radial dimension of the ninth sliding element; at least one eleventh sliding element, the eleventh sliding element being disposed at the bottom end of the second limiting element, being located outside the ninth sliding element, and being slidably connected to the base unit; At least one third limiting element, wherein the third limiting element is disposed at an end of the tenth sliding element and is slidably connected to the base unit, and is used to prevent the third locking unit from being separated from the base unit.

3. The locking device according to claim 2, characterized in that: The base unit also includes: At least one third sliding element, the third sliding element being disposed on the outer wall of the first base element, being located on the side of the second sliding element, and being slidably connected to the foot ring device; and / or The first locking unit further comprises: at least one sixth sliding element, the sixth sliding element being disposed inside the fifth sliding element; at least one seventh sliding element, the seventh sliding element being disposed on a side of the first locking element and being slidably connected to the sixth sliding element; and / or The first locking unit further comprises: at least one first chamber element, the first chamber element being disposed through the first locking element; at least one first elastic element, the first elastic element being disposed inside the first chamber element and being used to drive the first locking element to move; and / or The first locking unit further comprises: at least one second elastic element, wherein the second elastic element is disposed between the fourth sliding element and the first locking element; and / or The first locking unit further comprises: at least one third elastic element, wherein the third elastic element is disposed between two adjacent first locking elements; and / or The third locking unit further comprises: A third locking element is disposed at the bottom end of the tenth sliding element and is locked with the foot ring device.

4. A foot ring device, used in conjunction with the locking device according to any one of claims 1 to 3, for use by mentally ill patients, characterized in that: include: a foot ring unit that is removably worn on the patient's ankle; A main body unit, the main body unit is arranged at the first end of the foot ring unit; a first fixing unit, the first fixing unit being disposed at a first end of the main unit and being slidably connected to the base unit and the first locking unit of the locking device respectively; a second fixing unit, which is disposed at the first end of the main body unit and is located at the lower part of the first fixing unit and is locked and connected with the third locking unit of the locking device; a third fixing unit, the third fixing unit being arranged at the second end of the foot ring unit and being removably arranged between the first fixing unit and the second fixing unit, the second locking unit of the locking device being arranged inside the third fixing unit and being slidably connected with the base unit and the first locking unit of the locking device respectively, and being used for cooperating with the first fixing unit and the second fixing unit to wear the foot ring unit on the ankle of the patient; A position monitoring unit, which is arranged on the main unit and is used to obtain the position information of the patient; A control unit is arranged on the main unit and is connected to the main unit and the position monitoring unit respectively.

5. The foot ring device according to claim 4, characterized in that: The foot ring unit comprises: A foot ring element, which is removably worn on the patient's ankle, wherein the main body unit is disposed at a first end of the foot ring element, and the third fixing unit is disposed at a second end of the foot ring element; and / or The main unit comprises: A housing element, wherein the housing element is disposed at the first end of the foot ring unit, and the position monitoring unit and the control unit are disposed inside the housing element; an identification element, which is disposed on a side of the housing element and connected to the control unit, and is used to read or write patient information to the identification element via a reading and writing device; and / or The first fixing unit comprises: a first fixing element, the first fixing element being disposed at a first end of the main unit; a twelfth sliding element, the twelfth sliding element being arranged through the first fixing element and being slidably connected to the base unit and the first locking unit respectively; and / or The second fixing unit comprises: A second fixing element, the second fixing element is disposed at the first end of the main body unit and is located at the bottom end of the first fixing unit; a fourteenth sliding element, the fourteenth sliding element being disposed at a top end of the second fixing element and being slidably connected to a bottom end of the third locking unit; and / or The third fixing unit comprises: A third fixing element, the third fixing element is arranged at the second end of the foot ring unit and is located between the first fixing unit and the second fixing unit, the second locking unit is arranged inside the third fixing element, and is slidably connected with the base unit and the first locking unit respectively; a fifteenth sliding element, the fifteenth sliding element being arranged to penetrate the third fixing element and being slidably connected to the base unit and the first locking unit respectively; and / or The position monitoring unit comprises: A positioning element, which is disposed on the main unit and connected to the control unit, and is used to obtain position information of the patient; A distance monitoring element, which is disposed on the main unit and connected to the control unit, and is used to monitor the distance between the foot ring unit and the ground; and / or The control unit comprises: A control element, which is disposed on the main unit and is connected to the main unit and the position monitoring unit respectively; A communication element, connected to the control element and used for communicating with the outside world; A power supply element is connected to the control element for supplying power.

6. The foot ring device according to claim 5, characterized in that: The first fixing unit further includes: at least one thirteenth sliding element, the thirteenth sliding element being disposed through the first fixing element, being in communication with the twelfth sliding element, and being slidably connected to the base unit; and / or The second fixing unit further includes: a fourth locking element, the fourth locking element being disposed at an end of the fourteenth sliding element and being locked and connected to a bottom end of the third locking unit; and / or The third fixing unit further includes: At least one sixteenth sliding element, wherein the sixteenth sliding element is disposed at the top end of the third fixing element, is communicated with the fifteenth sliding element, and is slidably connected with the base unit.

7. The foot ring device according to any one of claims 4 to 6, characterized in that: Also includes: An anti-breaking unit, which is arranged inside the foot ring unit and is used to prevent the foot ring unit from breaking; and / or A reminder unit is arranged on the main unit and connected to the control unit, and is used for reminding when the patient escapes.

8. The foot ring device according to claim 7, characterized in that: The foot ring unit also includes: At least one second chamber element, which is disposed inside the foot ring unit and is used to set the anti-breakage unit; and / or The anti-break unit comprises: At least one anti-breaking element, which is disposed inside the foot ring unit and is used to increase the toughness of the foot ring unit to prevent the foot ring unit from breaking; and / or The reminder unit comprises: A first reminder element, which is disposed on the foot ring unit and connected to the control unit, and is used for making a sound reminder when the patient escapes; and / or The reminder unit comprises: The second reminder element is arranged on the foot ring unit and connected to the control unit, and is used for providing a light reminder when the patient escapes.

9. A foot ring system, characterized in that: include: The locking device according to any one of claims 1 to 3; A foot ring device as claimed in any one of claims 4 to 8.

10. The foot ring system according to claim 9, characterized in that: Also includes: A remote control device is communicatively connected with the control unit of the foot ring device.

Images