CN111058239A

CN111058239A - Locking component, locking system, washing vehicle and locking method

Info

Publication number: CN111058239A
Application number: CN201911326605.9A
Authority: CN
Inventors: 刘小羊; 张海阔; 黄开
Original assignee: Changsha Zoomlion Fire Fighting Machinery Co Ltd
Current assignee: Changsha Zoomlion Fire Fighting Machinery Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-04-24

Abstract

The invention relates to the technical field of washing machine vibration control, and discloses a locking component, a locking system, a washing vehicle and a locking method. The locking member includes a first portion and a second portion that are relatively movable; the first part comprises a first cavity, the second part divides the first cavity into an A cavity and a B cavity which are communicated through a flow path, and the locking part further comprises a control unit which is arranged on the flow path and can control the interception and the throughflow of the flow path so as to realize the switching between the rigid connection and the elastic movement connection of the first part and the second part; when the fluid flows through the flow path, the fluid can flow between the cavity A and the cavity B through the flow path, so that the connection between the first part and the second part is elastic movement connection; when the flow path is stopped, the fluid can not flow between the cavity A and the cavity B, and the connection between the first part and the second part becomes rigid connection. The locking component is fast and convenient to operate.

Description

Locking component, locking system, washing vehicle and locking method

Technical Field

The invention relates to the technical field of washing machine vibration control, in particular to a locking component, a locking system, a washing vehicle and a locking method.

Background

The core equipment of the bedding and clothing washing vehicle suitable for field operation mainly adopts a universal industrial washing machine at present, a washing machine roller is generally in a suspension structure, and the roller needs to be locked when being fixed on a vehicle for transportation so as to prevent the roller from being damaged when jolting in the braking and driving processes; at present, the locking of the drum is mainly in a thread fixing mode, when the clothes washing vehicle runs, the drum and the drum mounting frame are connected into a whole, the drum mounting frame is connected with a washing machine frame through a drum locking plate, and at the moment, the drum and the washing machine frame are connected into a whole under the fastening action of a thread fastener to realize locking. When the clothes washing vehicle arrives at a designated working place to start working, the threaded fastener needs to be loosened manually, and the roller locking plate can be detached to carry out washing work. The washing machine adopting the mode needs to manually remove the threaded fastener and the roller locking plate when working, needs to be installed and fastened again after washing is finished, wastes time and labor, and is difficult to meet the requirement of the bedding and clothing washing vehicle with strong fluidity for field operation. In order to meet this demand, a bedding washing vehicle having a new locking system is urgently needed.

Disclosure of Invention

The invention aims to provide a locking system which can be automatically locked and unlocked.

In order to achieve the above object, the present invention provides a locking member including a main body portion for connecting a first object and a second object, the main body portion including a first portion and a second portion that are relatively movable; the locking component comprises a locking component, a first part and a second part, wherein the first part comprises a first cavity, the second part divides the first cavity into an A cavity and a B cavity which are communicated through a flow path, the locking component further comprises a control unit which is arranged on the flow path and can control the interception and the throughflow of the flow path so as to realize the switching between rigid connection and elastic movement connection of the first part and the second part; when the flow path flows through, fluid can flow between the cavity A and the cavity B through the flow path along with the relative movement between the second part and the first part, so that the connection between the first part and the second part is elastic movement connection; when the flow path is stopped, the fluid can not flow between the cavity A and the cavity B, and the connection between the first part and the second part becomes rigid connection.

Further, the first part comprises a first cavity and a second cavity which are communicated with each other; the second portion comprises a piston reciprocally movable within the first cavity; the piston divides the first cavity into an A cavity and a B cavity which are communicated with the second cavity at the same time.

Further, the first cavity and the second cavity are distributed coaxially.

Further, the second cavities are distributed radially outside the first cavities.

Further, the first portion includes a first housing defining the first cavity and a second housing defining the second cavity with the first housing; the first shell and the second shell are fixed together to form a first cylinder with a jacket structure.

Furthermore, a first through hole for communicating the second cavity with the cavity A and a second through hole for communicating the second cavity with the cavity B are formed in the first shell.

Further, a third through hole coaxial with the first through hole is formed in the second shell; the control unit comprises a fixed structure fixed on the main body part and an execution structure installed in the fixed structure; the first end of the executing structure is movably arranged in the fixed structure, and the second end of the executing structure penetrates through the third through hole to be controllable for blocking the first through hole.

Further, the second portion includes a first single piston rod mounted on the piston and extending out of one end of the first cylinder; the main body portion connects the first object and the second object through the first single piston rod and the first cylinder, respectively.

Further, the locking member includes a detection unit for detecting an operating state of the control unit and transmitting a detection result to the controller to further control the action of the control unit.

Further, a medium with pre-pressure is filled between the first part and the second part, and the medium adopts viscoelastic fluid.

A second aspect of the present invention provides a lock-up system comprising the above-described lock-up member and a washing machine; the washing machine comprises a washing machine frame, a washing unit contained in the washing machine frame, and a damping unit arranged between the washing unit and the washing machine frame.

Further, the locking system comprises a controller capable of controlling the locking or unlocking of the control unit according to the working condition of the washing unit.

A third aspect of the invention provides a washing vehicle comprising a locking system as described above.

A fourth aspect of the invention provides a locking method of communicating a flow path between an a cavity and a B cavity between a first part and a second part which are relatively movable to allow fluids in the a cavity and the B cavity to flow each other to unlock the first part and the second part to be connected in elastic movement; the locking method blocks a flow path between the cavity A and the cavity B to block fluid in the cavity A and the cavity B from flowing to each other, so that the first part and the second part are locked to be rigidly connected.

Further, the second part can move in the inner cavity of the first part to divide the inner cavity of the first part into an A cavity and a B cavity; the cavity A and the cavity B are communicated through a flow passage on the wall of the inner cavity of the first part.

Through the technical scheme, the first part and the second part are switched between rigid connection and elastic movement connection by controlling the interception and through-flow of the flow paths of the cavity A and the cavity B communicated through the control unit, and the locking part is quick and convenient to operate.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a locking member according to an embodiment of the present application in a locked state;

FIG. 2 is a schematic view of a first flow of fluid in the unlocked state of the locking member of FIG. 1;

FIG. 3 is a second schematic flow diagram of fluid in the unlocked state of the locking feature of FIG. 1;

FIG. 4 is a schematic diagram of the control unit of FIG. 1;

FIG. 5 is a schematic view of a portion of the first housing of FIG. 1;

FIG. 6 is a schematic illustration of a latch system according to an embodiment of the present application;

fig. 7 is a top view of fig. 6.

Description of the reference numerals

1-a body portion; 11-a first part; 111-a first cavity; 1111-a third cavity; 1112-a fourth cavity; 112-a second cavity; 113-a first housing; 1131 — a first via; 1132 — a second via; 1133 — transition sleeve; 114-a second housing; 1141-a third via; 1142-end cap; 12-a second part; 121-a piston; 122-single out piston rod; 2-a control unit; 21-a fixed structure; 22-an execution structure; 3-a locking member; 4-washing machine; 41-washing machine frame; 42-a washing unit; 421-washing drum; 422-washing drum; 43-a shock absorbing unit.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. In the present invention, it is to be understood that the terms "away", "toward", "upper", "lower", "front", "rear", "left", "right", and the like indicate an orientation or positional relationship corresponding to an orientation or positional relationship in actual use; "inner and outer" refer to the inner and outer relative to the profile of the components themselves; this is for convenience in describing the invention and for simplicity in description and is not intended to indicate that the device or component in question must have a particular orientation, be constructed and operated in a particular orientation and is therefore not to be construed as limiting the invention; in the present invention, the "viscoelastic fluid" means a substance having viscosity and elasticity and capable of flowing; "lock-up" refers to closing the control unit and the flow of fluid between the first and second portions is in a shut-off state, where the connection between the first and second portions is a rigid connection; by "unlocking" is meant that the control unit is opened to allow fluid to flow between the first and second parts, the connection between the first and second parts being a resilient kinematic connection.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. One aspect of the present invention provides a locking member, as shown in fig. 1: the locking component comprises a main body part 1 for connecting a first object and a second object, wherein the main body part 1 comprises a first part 11 and a second part 12 which can move relatively; the first part 11 comprises the first cavity 111, the second part 12 divides the first cavity 11 into an A cavity 1111 and a B cavity 1112 which are communicated through a flow path, the locking part further comprises a control unit 2 arranged on the flow path, and the control unit 2 can control the flow interception and the flow passing of the flow path to realize the switching between the rigid connection and the elastic movement connection of the first part 11 and the second part 12; when a flow path flows through, fluid can flow between the A cavity 1111 and the B cavity 1112 through the flow path along with the relative motion between the second part 12 and the first part 11, so that the connection between the first part 11 and the second part 12 is in elastic motion connection; when the flow path is blocked, fluid cannot flow between the a cavity 1111 and the B cavity 1112, and the connection between the first part 11 and the second part 12 becomes a rigid connection.

The locking member operates quickly and conveniently by switching the first part 11 and the second part 12 between the rigid connection and the elastically movable connection by controlling the flow interception and throughflow of the flow paths of the communicating a cavity 1111 and B cavity 1112 by the control unit 2.

Preferably, the first portion 11 comprises a first cavity 111 and a second cavity 112 communicating with each other; the second portion 12 comprises a piston 121 reciprocally movable within the first cavity 111; the piston 121 divides the first cavity 111 into an a cavity 1111 and a B cavity 1112 that communicate with the second cavity 112 at the same time.

Thus, when necessary, fluid can move between the two sides a and

B cavities

1111 and 1112 of the piston 121 through the second cavity 112 according to the movement of the piston 121, thereby making the connection between the first part 11 and the second part 12 including the piston 121 a resilient movement connection.

Blocking fluid flow between the two sides of the piston 121, cavity a 1111 and cavity B1112, through the second cavity 112, causes the connection between the piston 121 and the second part 12 to be a rigid connection, if desired. Thus, switching between a rigid connection and a resiliently moving connection between first portion 11 and second portion 12 is achieved by controlling the flow of fluid between a cavity 1111 and B cavity 1112 through second cavity 112.

Preferably, the first cavity 111 and the second cavity 112 are coaxially distributed. The first cavity 111 and the second cavity 112 are coaxially distributed, so that the structure is compact, and the installation and the maintenance are facilitated.

Preferably, the second cavities 112 are distributed radially outside the first cavities 111. In this way, the piston 121 is arranged in the first cavity 111, which configuration is advantageous for production, installation and maintenance. With this structure, the piston 121 can be a common piston.

Preferably, the first portion 11 comprises a first shell 113 defining the first cavity 111 and a second shell 114 defining the second cavity 112 together with the first shell 113; the first housing 113 and the second housing 114 are fixed together to form a first cylinder having a jacket structure. The arrangement is compact. In one embodiment, as shown in fig. 1-3, the first housing 113 comprises a cylinder with two open ends; the second housing 114 comprises a barrel structure with an open end, one end of the barrel abuts against the bottom of the barrel structure, the other end of the barrel comprises a transition sleeve 1133, the transition sleeve 1133 comprises a plug with an outer diameter equal to the inner diameter of the barrel, and the plug and the barrel are combined to prevent the fluid from exiting the first cavity 111 out of the first barrel, and on the other hand, the transition sleeve 1133 comprises a flange extending radially outwards to close off the opening of the barrel structure, so as to seal the fluid in the first cavity 111 and the second cavity 112.

Preferably, the first housing 113 is formed with a first through hole 1131 communicating the second cavity 112 with the a cavity 1111 and a second through hole 1132 communicating the second cavity 112 with the B cavity 1112.

As shown in fig. 5, the first through hole 1131 and the second through hole 1132 are formed on the sidewall of the cylinder and located at two sides of the piston 121, respectively, so as to facilitate communication between the a cavity 1111 and the B cavity 1112 through the second cavity 112, so that the medium flows back and forth between the a cavity 1111 and the B cavity 1112 by bridging the second cavity 112 with the movement of the piston 121.

Preferably, a third through hole 1141 coaxial with the first through hole 1131 is formed on the second housing 114; the control unit 2 comprises a fixed structure 21 fixed on the main body part 1 and an actuating structure 22 installed in the fixed structure 21; the first end of the actuating structure 22 is movably installed in the fixed structure 21, and the second end of the actuating structure 22 passes through the third through hole 1141 to be controllable for blocking the first through hole 1131.

In one embodiment, as shown in fig. 4, the fixed structure 21 is a two-cylinder body, and the actuating structure 22 is a second single piston rod, so that the extension and retraction of the second single piston rod can be automatically controlled by a pneumatic system or a hydraulic system. The protruding end of the second single piston rod comprises a tapered structure, and the second through hole 1132 comprises a tapered counter bore at the end facing the second housing 114; the tapered structure is used for blocking the tapered counter bore to block the fluid flow between the first cavity 111 and the second cavity 112, so that the piston 121 is prevented from reciprocating along the first cavity 111 under the action of external force, and the connection between the first part 11 and the second part 12 is changed into rigid connection; when the second single piston rod is retracted into the second cylinder, the conical structure is disengaged from the conical counter bore, and the piston 121 is reciprocated in the first cavity 111 by an external force while bringing fluid to reciprocate between the B cavity 1112 and the a cavity 1111 partitioned by the first cavity 111 via the second cavity 112 to form a resilient kinematic connection between the first part 11 and the second part 12.

The specific connection manner of the first portion 11 and the second portion 12 with the first object and the second object can adopt various manners.

Preferably, the second part 12 comprises a first single piston rod 122 mounted on the piston 121, passing out from one end of the first cylinder; the main body portion 1 connects the first object and the second object through the first single piston rod 122 and the first cylinder, respectively.

In one embodiment, as shown in FIGS. 6-7, the extended end of the first single-piston rod 122 is attached to a first object and the first cylinder is attached to a second object. The first cylinder is structured as shown in fig. 1, a third through hole for the first single piston rod 122 to pass through is formed on the transition sleeve 1133 of the first cylinder, and an end cover 1142 fixedly connected to the second housing 114 is disposed at an opening of the barrel, so as to fasten the first cylinder 1133, the barrel, and the barrel together. The end cover 1142 is formed with a fourth through hole coaxial with the fourth through hole and having an inner diameter equal to that of the fourth through hole, the fourth through hole is used for the first single piston rod 122 to penetrate out, a fixed hinge lug is arranged at one end of the first cylinder body, which is deviated from the transition sleeve 1133, and the first cylinder body is fixedly connected with a second cylinder body through the hinge lug.

The locking means also comprise a pressure seal for ensuring the initial pressure of the viscoelastic fluid and the seal between the first part 11 and the second part 12, said pressure seal comprising a sealing ring.

Preferably, a detection unit is included for detecting the operating state of the control unit 2 and delivering the detection result to a controller to further control the action of the control unit 2. This arrangement ensures that the control unit 2 is locked or unlocked to ensure that the first and

second parts

11, 12 are switched between a rigid connection and a resiliently movable connection.

Preferably, a medium with pre-pressure is filled between the first part 11 and the second part 12, and the medium adopts viscoelastic fluid. By providing the viscoelastic fluid with a pre-pressure, the pre-pressure stored by the viscoelastic fluid acts on the piston 121 when the locking member is locked, and a rigid connection between the first part 11 and the second part 12 is achieved; when the locking member is unlocked, the piston 121 is automatically reset under the pre-pressure of the viscoelastic fluid reservoir.

A second aspect of the invention provides a locking system comprising the locking member described above and a washing machine 4; the washing machine 4 includes a washing machine frame 41 and a washing unit 42 accommodated in the washing machine frame 41, and a damping unit 43 disposed between the washing unit 42 and the washing machine frame 41.

Wherein, the washing unit 42 is the first object, and the washing machine frame 41 is the second object; by providing the locking member, the locking member is in an unlocked state when the washing unit 42 is operated, and at this time, the locking member corresponds to a bi-directional damper that works together with the damping unit 43 to perform a damping and shock-absorbing function.

When the washing unit 42 is in the non-operating state, the medium filled between the first portion 11 and the second portion 12 is blocked from flowing by the control unit 2, the piston 121 cannot move, and at this time, the first portion 11 and the second portion 12 are rigidly connected by the medium and are further rigidly connected with the washing machine frame 41 and the washing unit 42, and the locking member is equivalent to a rigid connecting rod, so that the washing unit 42 can be prevented from vibrating and damaging the washing unit 42 during transportation.

Preferably, the locking system comprises a controller capable of controlling the locking or unlocking of the control unit 2 according to the operating conditions of the washing unit 42. By providing a controller to which the status of the control unit 2 and the washing unit 42 can be communicated, the controller processes the received signals and feeds back the processed results to the control unit 2 to achieve automatic locking and automatic unlocking.

In one embodiment, as shown in fig. 6-7, the locking system comprises four locking members 3 and a washing machine 4, which are symmetrically arranged; the washing machine 4 includes a washing machine frame 41 and a washing unit 42 accommodated in the washing machine frame 41, and a damping unit 43 disposed between the washing unit 42 and the washing machine frame 41. The washing unit 42 includes a washing drum support 421 and a washing drum 422 mounted on the washing drum support 421. Wherein, the four locking components 3 are arranged between the washing drum support 421 and the washing machine frame 41 in a frustum manner. The locking member 3 achieves locking and unlocking by the control unit 2. The control program of the locking member 3 and the washing program of the washing unit 42 communicate with each other, and the locking member 3 performs automatic locking or unlocking by acquiring an operation signal of the washing machine 4. The locking component 3 is structurally shown in FIGS. 1-3; the main body part 1 is used for connecting the washing unit 42 and the washing machine frame 41, and the first part 11 and the second part 12 are fixedly connected with the washing unit 42 and the washing machine frame 41 respectively; the medium with pre-pressure arranged between the first part 11 and the second part 12 is a viscoelastic fluid; the control unit 2 adopts a pneumatic cylinder or a hydraulic cylinder; the actuating structure 22 is a piston structure having a second single piston rod, and the fixed structure 21 is a second cylinder. FIG. 1 is a schematic structural view of the locking member in a locked state; FIG. 2 is a schematic view of a first flow of media when the locking member is in an unlocked condition; FIG. 3 is a second schematic flow diagram of the media when the locking member is in an unlocked condition; in an initial state, the first cavity 111 and the second cavity 112 are pre-filled with a viscoelastic fluid having a pre-pressure. When the washing machine 4 is in the non-operating state, the control unit 2 in the locking member 3 is locked, and the viscoelastic fluid cannot flow between the first portion 11 and the second portion 12. In this state, the locking member 3 corresponds to a rigid connecting rod. The pressure of the viscoelastic fluid with its pre-pressure acts on the piston 121 and then forms a rigid connection with the first part 11 and the second part 12.

When the washing machine 4 is in the operating state, the control unit 2 releases the lock. At this time, the locking member 3 corresponds to a bi-directional damper, and the locking member 3 works together with the damping unit 43 to damp and damp the washing drum 422. When the washing drum 422 is in operation, the acting force generated when the washing drum 422 deflects is transmitted to the piston 121 through the washing drum support 421, the viscoelastic fluid is compressed by the piston 121, and the viscoelastic fluid flows between the first cavity 111 and the second cavity 112 through the first through hole 1131 and the second through hole 1132 under the action of pressure, and more specifically, the flow of the viscoelastic fluid between the first cavity 111 and the second cavity 112 is divided into two cases, namely, when the piston 121 retracts into the first cylinder, as shown in fig. 2, the viscoelastic fluid flows from the a cavity 1111 into the second cavity 112 through the third through hole 1141 and then enters the B cavity 1112 through the second through hole 1132; in the second case, when the piston 121 extends out of the first cylinder, as shown in fig. 3, the viscoelastic fluid enters the second cavity 112 from the B cavity 1112 through the second through-hole 1132 and then flows into the a cavity 1111 through the third through-hole 1141; the first through hole 1131 is configured as a small hole, and the damping effect generated by the viscoelastic fluid flowing through the first through hole 1131 is utilized to realize the bidirectional buffering effect. When the washing drum 422 is reset, the piston 121 is automatically reset under the pre-pressure of the viscoelastic fluid storage.

The control unit 2 comprises a displacement sensor and a pressure sensor, signals collected by the displacement sensor and the pressure sensor can be transmitted to the controller, and the controller receives and processes the signals collected by the displacement sensor and the pressure sensor of the control unit 2 and washing signals from the washing machine 4 and controls the execution structure 22 to act according to the processing result to realize locking or unlocking. When the washing system starts to work, the actuator 22 is unlocked, the tapered structure at the end of the actuator 22 is disengaged from the tapered counter bore of the second through hole 1132, and the locking member 3 acts as a bidirectional buffer. When the control unit 2 receives a signal for stopping the operation of the washing system, under the command of the controller, the actuator 22 extends from the second cylinder to make the conical structure abut against the conical counter bore, so as to block the flow of viscoelastic fluid between the cavity B1112, the second cavity 112 and the cavity a 1111, when the locking member 3 acts as a rigid connecting rod, fixing the washing unit 42 and the washing machine frame 41 together for transportation. In addition, a pressure measuring sensor and a displacement sensor are arranged inside the control unit 2, and the controller can send out an instruction to control the tightening degree of the execution structure 22 according to signals detected by the pressure measuring sensor and/or the displacement sensor, so as to prevent the damage of the washing unit 42 caused by the vibration between the washing unit 42 and the washing machine frame 41 due to the insufficient locking degree of the locking component 3 in a transportation state; it is possible to prevent the washing unit 42 from being damaged due to the abnormal washing caused by the locking of the locking member 3 when the washing unit 42 is operated.

A third aspect of the invention provides a washing vehicle comprising a locking system as described above. The washing vehicle has the technical advantages of the locking system, and the detailed description is omitted.

The fourth aspect of the present invention provides a locking method of communicating a flow path between an a cavity 1111 and a B cavity 1112 between a first part and a second part which are relatively movable to allow fluids in the a cavity 1111 and the B cavity 1112 to flow each other, so that the first part and the second part are unlocked to be elastically movably connected,

the flow path between the a cavity 1111 and the B cavity 1112 is blocked to block the fluid in the a cavity 1111 and the B cavity 1112 from flowing to each other, so that the first part and the second part are locked to be rigidly connected.

This locking method, which uses the control of the flow path between the a cavity 1111 and the B cavity 1112 to shut off and pass through, is quick and convenient, and is suitable for the case where the first part and the second part need to be frequently switched between the elastic movement connection and the rigid connection. For example, the field operation bedding and clothing washing vehicle needs to be moved frequently, the industrial washing machine on the field operation bedding and clothing washing vehicle needs to be locked and unlocked frequently, if a common locking method is adopted, the locking and the unlocking are time-consuming and labor-consuming, and the requirement of the field operation bedding and clothing washing vehicle can be well met by adopting the locking method.

Preferably, the second portion is movable within the lumen of the first portion to divide the lumen of the first portion into an a cavity 1111 and a B cavity 1112; the a cavity 1111 and the B cavity 1112 communicate through a flow channel in the wall of the lumen of the first part.

As shown in fig. 1-3, a specific embodiment of the locking assembly required by this method is compact, easy to purchase, and low in cost.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. For example, the second part may be modified to a piston with a double piston rod, the relative movement between the first cylinder and the piston being achieved by fixing the first cylinder and using a sliding connection at either or one of its ends.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, for example, the first cavity and the second cavity can be coaxially arranged or can be arranged in parallel; when the first cavity and the second cavity are arranged in parallel, the first cavity and the second cavity can be communicated through a pipeline; when the first cavity and the second cavity are coaxially arranged, the piston can adopt a common piston, and the first cavity and the second cavity of the piston are positioned in one of the inner positions; a specially-made piston with a central through hole can also be adopted to enable the piston to axially move between the first shell and the second shell; of course, the piston may be provided with an opening to provide a fluid communication path from cavity a to cavity B. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A locking member, characterized by comprising a main body portion (1) for connecting a first object and a second object, said main body portion (1) comprising a first portion (11) and a second portion (12) which are relatively movable; the first part (11) comprises a first cavity (111), the second part (12) divides the first cavity (11) into an A cavity (1111) and a B cavity (1112) which are communicated through a flow path, the locking part further comprises a control unit (2) arranged on the flow path, and the control unit (2) can control the flow interception and the flow discharge of the flow path to realize the switching between the rigid connection and the elastic movement connection of the first part (11) and the second part (12);

when the fluid flows through the fluid path, fluid can flow between the A cavity (1111) and the B cavity (1112) along with the relative motion between the second part (12) and the first part (11) through the fluid path, so that the connection between the first part (11) and the second part (12) is elastic motion connection;

when the flow path is stopped, the fluid can not flow between the A cavity (1111) and the B cavity (1112), and the connection between the first part (11) and the second part (12) becomes rigid.

2. A locking member as claimed in claim 1, characterized in that said first portion (11) comprises a first cavity (111) and a second cavity (112) communicating with each other; the second portion (12) comprises a piston (121) reciprocally movable within the first cavity (111); the piston (121) divides the first cavity (111) into an a cavity (1111) and a B cavity (1112) which communicate with the second cavity (112) simultaneously.

3. The locking member according to claim 2, characterized in that said first cavity (111) and said second cavity (112) are coaxially distributed.

4. A locking member as claimed in claim 3, characterized in that said second cavity (112) is distributed radially outside said first cavity (111).

5. The locking member according to claim 4, characterized in that said first portion (11) comprises a first housing (113) defining said first cavity (111) and a second housing (114) defining said second cavity (112) together with said first housing (113); the first shell (113) and the second shell (114) are fixed together to form a first cylinder with a jacket structure.

6. The locking member according to claim 5, wherein a first through hole (1131) communicating the second cavity (112) and the A cavity (1111) and a second through hole (1132) communicating the second cavity (112) and the B cavity (1112) are formed in the first housing (113).

7. The locking member according to claim 6, characterized in that the second housing (114) is formed with a third through hole (1141) coaxial with the first through hole (1131); the control unit (2) comprises a fixed structure (21) fixed on the main body part (1) and an execution structure (22) installed in the fixed structure (21); a first end of the actuating structure (22) is movably mounted in the fixed structure (21), and a second end of the actuating structure (22) is controllable through the third through hole (1141) for closing the first through hole (1131).

8. A locking member as claimed in claim 7, characterised in that the second part (12) comprises a first single-piston rod (122) mounted on the piston (121) and projecting from one end of the first cylinder; the main body portion (1) connects the first and second objects through the first single piston rod (122) and the first cylinder, respectively.

9. Locking part according to claim 1, characterized in that it comprises a detection unit for detecting the operating state of the control unit (2) and feeding the detection result to a controller for further controlling the action of the control unit (2).

10. The locking part of claim 1, characterized in that a medium with pre-pressure is filled between the first part (11) and the second part (12), and the medium is a viscoelastic fluid.

11. A locking system, characterized in that it comprises at least one locking member according to any one of claims 1 to 10 and a washing machine (4); the washing machine (4) comprises a washing machine frame (41), a washing unit (42) accommodated in the washing machine frame (41), and a damping unit (43) arranged between the washing unit (42) and the washing machine frame (41).

12. The locking system of claim 11, comprising a control capable of controlling the locking or unlocking of the control unit (2) according to the operating conditions of the washing unit (42).

13. A washing vehicle, characterized in that it comprises a locking system according to any one of claims 11-12.

14. A locking method characterized by communicating a flow path between an a cavity (1111) and a B cavity (1112) between a first part and a second part which are relatively movable to allow fluid in the a cavity (1111) and the B cavity (1112) to flow each other to unlock the first part and the second part to be connected in elastic movement; blocking a fluid path between the A cavity (1111) and the B cavity (1112) to block fluid in the A cavity (1111) and the B cavity (1112) from flowing to each other, such that the first part and the second part are locked to be rigidly connected.

15. The method of locking out of claim 14, wherein the second portion is movable within the first portion lumen to divide the first portion lumen into an a cavity (1111) and a B cavity (1112); the A cavity (1111) and the B cavity (1112) are communicated through a flow passage on the wall of the inner cavity of the first part.