Adjustable Motion Self-Locking System

Abstract

The present invention provides an adjustable motion self-locking system, which includes an outer sleeve structure, a moving part, a clamping part and a switch structure; an accommodation space is provided on the outer sleeve structure, and the moving part is nested and installed in the accommodation space; the accommodation space includes a clamping guide part, and the inner wall surface of the clamping guide part forms a locking action surface; the clamping part is slidably installed in the clamping guide part, and a dial is connected to the clamping part; the switch structure is fixedly connected or slidably connected to the outer sleeve structure, and the switch structure drives the dial to deform, recover or move, driving the clamping part to slide in the clamping guide part, so as to realize the conversion of the clamping part between the two states of the locking state and the unlocking state. In the present invention, a plurality of clamping parts are simultaneously controlled by the switch structure to lock the moving part, and the braking effect is good; in addition, the switch can be selected in various forms such as manual, electric or a combination thereof, greatly improving the adaptability to the use environment.

Description

Technical Field

[0001] The present invention relates to the field of braking devices, and more particularly, to an adjustable motion self-locking system. Background Art

[0002] The electromagnetic braking device provided in patent document CN105584951B includes a brake shoe capable of slidingly contacting a body to be braked, an armature supporting the brake shoe, a plurality of brake springs pressing the armature to apply a force in the braking direction to the brake shoe, and an electromagnet body that electromagnetically attracts the armature against the acting force of the brake springs to drive the brake shoe in a direction away from the body to be braked. Among them: a laminated compression rubber formed by laminating a plurality of layers of compression rubber in the braking direction of the armature is provided, and is compressed when the armature moves in the braking direction and acts as a reaction force of the brake spring. According to the description of this patent document, it can stably suppress noises such as collision sounds during braking for a long time. However, in application scenarios with a large external magnetic field intensity and complex magnetic field changes, a pure electromagnetic braking structure lacks sufficient motion stability. Summary of the Invention

[0003] Aiming at the defects in the prior art, the purpose of the present invention is to provide an adjustable motion self-locking system.

[0004] The adjustable motion self-locking system provided by the present invention includes an outer sleeve structure, a moving member, an engaging member, and a switch structure;

[0005] An accommodation space is provided on the outer sleeve structure, and the moving member is nested and installed in the accommodation space; the accommodation space includes an engaging guiding portion, and the inner wall surface of the engaging guiding portion forms a locking action surface;

[0006] The engaging member is slidably installed in the engaging guiding portion, and a dial is connected to the engaging member; the switch structure is fixedly connected or slidably connected to the outer sleeve structure, and the switch structure drives the dial to deform, recover, or move, driving the engaging member to slide in the engaging guiding portion, realizing the conversion of the engaging member between two states: the locked state and the unlocked state:

[0007] In the locked state, the engaging member is in contact with both the moving member and the locking action surface; in the unlocked state, the engaging member is only in contact with the moving member or only in contact with the locking action surface.

[0008] Preferably, the dial includes an elastic dial, a driving hole is provided on the elastic dial, and the switch structure includes a switch stud, and the radial position of the switch stud on the outer sleeve structure can be adjusted; the distal end of the switch stud forms a supporting hole end, and the supporting hole end can be inserted into the driving hole and cause elastic deformation or recovery of the elastic dial; or,

[0009] The dial includes a first permanent magnet, and the switch structure includes a rigid body or a second permanent magnet, and the switch structure drives the first permanent magnet to move.

[0010] Preferably, the outer sleeve structure includes a sleeve body and a sleeve fitting, and the sleeve body, the sleeve fitting, and the switch structure are connected in sequence;

[0011] A displacement guiding hole is provided on the sleeve fitting, and the displacement guiding hole reaches the inner space of the accommodation space. The dial penetrates through the displacement guiding hole in the length extension direction and can slide axially relative to the displacement guiding hole.

[0012] Preferably, the switch structure includes a piezoelectric material piece or a magnetostrictive material piece; or,

[0013] An electrostatic electrode group is formed between the distal end of the switch structure and the dial.

[0014] Preferably, a wire hub is further provided on the outer sleeve structure, and an electromagnetic coil is provided on the wire hub;

[0015] The switch structure is fixedly installed or slidably installed in the axial through hole on the wire hub, and the dial includes a magnet part.

[0016] Preferably, the switch structure is threadedly connected in the axial through hole of the wire hub, and the radial position of the switch structure on the outer sleeve structure can be adjusted;

[0017] A permanent magnet is provided on the dial, and the permanent magnet forms a magnet part; the switch structure includes an iron core part.

[0018] Preferably, a guide sleeve is further included. The outer sleeve structure is detachably assembled in the guide sleeve, and the shaft knot reaches the second axial opening of the guide sleeve after passing through the accommodation space on the outer sleeve structure.

[0019] Preferably, one or more switch structures are arranged circumferentially on the outer sleeve structure, and the switch structures correspond to the dials one by one;

[0020] A plurality of engaging members are connected to a single dial, and the plurality of engaging members are located in different engaging guiding parts.

[0021] Preferably, the engaging guiding part includes any one of the following structures:

[0022] -- An opening that is continuous for 360 degrees in the circumferential direction;

[0023] -- A slotted structure that is intermittently arranged in the circumferential direction.

[0024] Preferably, the shape of the driving hole is C-shaped or diamond-shaped;

[0025] The engaging member includes a spherical structure, a square block, or a wedge-shaped block.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In the present invention, a switch structure is used to simultaneously control multiple engaging members to lock a moving member, resulting in good braking effect. Additionally, the switch can be selected in various forms such as manual, electric, or their combination, greatly improving the adaptability to the use environment.

[0028] 2. The present invention can meet the functions of simultaneously realizing electromagnetic braking and manual braking. In the event of unexpected power failure or in an environment with a strong external interfering magnetic field, braking can still be achieved by manually rotating the switch structure, improving the use safety.

[0029] 3. The structure of the present invention is compact, and the overall size can be reduced. On the one hand, it can reduce the manufacturing cost, and on the other hand, it can also adapt to the application in a narrow space.

[0030] 4. The present invention is reasonably designed and has reliable strength, and can be applied to large-load working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Other features, objects, and advantages of the present invention will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0032] Figure 1 Schematic diagram of the adjustable motion self-locking system structure in the embodiment;

[0033] Figure 2 Partial enlarged view of the outer sleeve structure in the embodiment;

[0034] Figure 3 Schematic diagram of the adjustable motion self-locking system structure in the variation example;

[0035] Figure 4 Partial enlarged view of the outer sleeve structure in the variation example without power on;

[0036] Figure 5 Partial enlarged view of the outer sleeve structure in the variation example with power on.

[0037] The figures show:

[0038] DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made. These all belong to the protection scope of the present invention.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0041] As Figure 1 , Figure 2 shown, in the embodiment, the adjustable motion self-locking system provided by the present invention includes an outer sleeve structure, a moving member 5, a engaging member 7, and a switch structure 4; a receiving space 8 is provided on the outer sleeve structure, and the moving member 5 is nested and installed in the receiving space 8; the receiving space 8 includes a engaging guiding portion 9, and the inner wall surface of the engaging guiding portion 9 forms a locking action surface 10; the engaging member 7 is slidably installed in the engaging guiding portion 9, and an elastic flap 6 is connected to a plurality of engaging members 7; the switch structure 4 is fixedly connected or slidably connected to the outer sleeve structure, and the switch structure 4 drives the elastic flap 6 to deform or recover, driving the engaging member 7 to slide in the engaging guiding portion 9, so as to realize the conversion of the engaging member 7 between two states of a locked state and an unlocked state. In the locked state, the engaging member 7 is in contact with both the moving member 5 and the locking action surface 10; in the unlocked state, the engaging member 7 is only in contact with the moving member 5, or only in contact with the locking action surface 10. In the embodiment, a plurality of engaging members 7 are connected to one elastic flap 6, and the plurality of engaging members 7 are located in different engaging guiding portions 9. Preferably, the engaging member 7 is a spherical structure, such as a steel ball, an iron ball, a ceramic ball, etc.; of course, preferably, the engaging member 7 can also be a square block, a wedge block, etc. Preferably, the adjustable motion self-locking system further includes a guide sleeve 1, the outer sleeve structure is detachably assembled in the guide sleeve 1, and the moving member 5 passes through the receiving space 8 on the outer sleeve structure and reaches the second axial opening 16 of the guide sleeve 1. Preferably, one or more switch structures 4 are arranged circumferentially on the outer sleeve structure, and the switch structures 4 correspond to the elastic flaps 6 one by one. Preferably, the engaging guiding portion 9 refers to a portion where the dimension changes in the moving direction of the engaging member 7, and the engaging member 7 can undergo a conversion between a loose state and a tight state relative to the moving member 5 during the movement. In other words, the length extension direction of the locking action surface 10 forms an angle with the axial direction of the outer sleeve structure. Specifically, it can be a continuously conical opening in the circumferential direction of 360 degrees, or a slotted structure with a varying groove depth arranged discontinuously in the circumferential direction. Since there can be a plurality of engaging guiding portions 9, the above two structures can also exist simultaneously.

[0042] In practical applications, the moving member 5 can be such as Figure 1The shaft structure shown may also be a rotating shaft or a turntable structure. For the rotating shaft or turntable structure, the corresponding engaging and guiding portion 9 is a slotted structure with varying slot depths arranged intermittently in the circumferential direction (the circumferential direction is the circumferential direction corresponding to the rotation trajectory of the moving member 5). In the locked state, the side walls of the slots are used to prevent the engaging member 7 from rotating. Preferably, during the sliding process of the engaging member 7 in the engaging and guiding portion 9, it can be not only the approaching or separating between the two engaging members 7, but also the movement of the entire elastic flap 6 in one direction. Only one of the engaging members 7 engages at the same time to achieve one-way self-locking.

[0043] A driving hole 11 is provided on the elastic flap 6. The switch structure 4 includes a switch stud. The radial position of the switch stud on the outer sleeve structure can be adjusted. The distal end of the switch stud forms a support hole end, and the support hole end can be inserted into the driving hole 11 and cause elastic deformation or recovery of the elastic flap 6. Preferably, the shape of the driving hole 11 is C-shaped or diamond-shaped.

[0044] In a variant, the elastic flap 6 can also be other types of flaps. For example, the flap includes a first permanent magnet, and the switch structure 4 includes a rigid body or a second permanent magnet, and the switch structure 4 drives the first permanent magnet to move. Specific examples of the implementation process: 1) Two flaps containing first permanent magnets are arranged opposite to each other. Through the mutual attraction of the two first permanent magnets, when the switch structure 4 is not actuated, the engaging member 7 is in a state of locking the moving member 5. At this time, the two first permanent magnets are magnetically connected and there can be a certain gap. The switch structure 4 is a rigid body. When moving radially inward, the gap is expanded, causing the two engaging members 7 to move away from each other to complete the unlocking of the moving member 5. 2) Two flaps containing first permanent magnets are arranged opposite to each other. Through the mutual repulsion of the two first permanent magnets, when the switch structure 4 is not actuated, the engaging member 7 is in a state of unlocking the moving member 5. The switch structure 4 is a second permanent magnet. When moving radially inward, both first permanent magnets are attracted, and then the engaging member 7 locks the moving member 5. Of course, the selection of different structures corresponding to different working processes can also be determined according to the actual situation.

[0045] The outer sleeve structure includes a sleeve body 2 and a sleeve fitting 3. The sleeve body 2, the sleeve fitting 3, and the switch structure 4 are connected in sequence. A displacement guiding hole 12 is provided on the sleeve fitting 3. The displacement guiding hole 12 reaches the internal space of the accommodation space 8. The elastic flap 6 penetrates the displacement guiding hole 12 in the length extension direction and can slide axially relative to the displacement guiding hole 12.

[0046] The switch structure 4 includes a piezoelectric material piece or a magnetostrictive material piece; alternatively, an electrostatic electrode group is formed between the distal end of the switch structure 4 and the elastic flap 6. When the switch structure 4 is a piezoelectric material piece, if the piezoelectric material piece is powered on or off, its length will change, thereby driving the elastic flap 6 to elastically deform or recover, completing the locking or unlocking of the engaging member 7. Similarly, when the switch structure 4 is a magnetostrictive material piece, its length can be changed by a magnetic field. When an electrostatic electrode group is formed between the distal end of the switch structure 4 and the elastic flap 6, the two do not directly contact, and by applying the same charge or opposite charges, the elastic flap 6 elastically deforms or recovers.

[0047] As Figure 3 shown, in the variant, a wire hub 13 is further provided on the outer sleeve structure, an electromagnetic coil 14 is provided on the wire hub 13, the switch structure 4 is fixedly installed or slidably installed in an axial through hole on the wire hub 13, and the elastic flap 6 includes a magnet part. Preferably, the switch structure 4 is threadedly connected in the axial through hole of the wire hub 13, and the radial position of the switch structure 4 on the outer sleeve structure can be adjusted. Preferably, a permanent magnet 15 is provided on the elastic flap 6, and the permanent magnet 15 forms a magnet part; the switch structure 4 includes an iron core part. Preferably, the wire hub 13 is installed on the sleeve fitting 3. In practical applications, as Figure 4 shown, when the electromagnetic coil 14 is not powered on, the switch structure 4 can be manually rotated. Under the extrusion of the switch structure 4, the elastic flap 6 bends toward the side where the moving part 5 is located, and at the same time, the engaging members 7 at both ends are pulled inward, locking the moving part 5. When the switch structure 4 is screwed out in the reverse direction, the flap elastically deforms or recovers, and at the same time, the engaging members 7 are pushed away to both sides, releasing the moving part 5. As Figure 5 shown, when the electromagnetic coil 14 is powered on, the switch structure 4 is screwed out a little to act as an iron core and form an electromagnet structure with the electromagnetic coil 14. At the same time, to increase the magnetic attraction, a small permanent magnet 15 is embedded in the elastic flap 6. By rotating the switch structure 4, the distance between the switch structure 4 and the permanent magnet 15 on the elastic flap 6 is adjusted to ensure that the initial magnetic attraction just cannot deform or recover the elastic flap 6. When the electromagnetic coil 14 is powered on, the electromagnetic attraction attracts the permanent magnet 15 to drive the elastic flap 6 to bend, pulling the engaging member 7 to move inward and locking the moving part 5. After power-off, it automatically resets under the action of the elastic force, and the moving part 5 moves freely.

[0048] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various deformations or modifications within the scope of the claims, which do not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. An adjustable motion self-locking system, characterized in that, It includes an outer sleeve structure, a moving part (5), an engaging part (7), and a switch structure (4); An accommodation space (8) is provided on the outer sleeve structure, and the moving part (5) is nested and installed in the accommodation space (8); the accommodation space (8) includes an engaging guiding part (9), and the inner wall surface of the engaging guiding part (9) forms a locking action surface (10); The engaging part (7) is slidably installed in the engaging guiding part (9), and a dial is connected to the engaging part (7); the switch structure (4) is fixedly connected or slidably connected to the outer sleeve structure, and the switch structure (4) drives the dial to deform, recover or move, driving the engaging part (7) to slide in the engaging guiding part (9), realizing the conversion of the engaging part (7) between two states: the locked state and the unlocked state: In the locked state, the engaging part (7) is in contact with both the moving part (5) and the locking action surface (10); in the unlocked state, the engaging part (7) is only in contact with the moving part (5), or only in contact with the locking action surface (10); The outer sleeve structure includes a sleeve main body (2) and a sleeve fitting (3), and the sleeve main body (2), the sleeve fitting (3), and the switch structure (4) are connected in sequence; A displacement guiding hole (12) is provided on the sleeve fitting (3), and the displacement guiding hole (12) reaches the inner space of the accommodation space (8). The dial penetrates through the displacement guiding hole (12) in the length extension direction and can slide axially relative to the displacement guiding hole (12); It further includes a guide sleeve (1), the outer sleeve structure is detachably assembled in the guide sleeve (1), and the moving part (5) passes through the accommodation space (8) on the outer sleeve structure and reaches the second axial opening (16) of the guide sleeve (1).

2. The adjustable motion self-locking system according to claim 1, characterized in that, The dial includes an elastic dial (6), and a driving hole (11) is provided on the elastic dial (6). The switch structure (4) includes a switch stud, and the radial position of the switch stud on the outer sleeve structure can be adjusted; the distal end of the switch stud forms a hole-supporting end, and the hole-supporting end can be inserted into the driving hole (11) and cause elastic deformation or recovery of the elastic dial (6); or, the dial includes a first permanent magnet, and the switch structure (4) includes a second permanent magnet, and the switch structure (4) drives the first permanent magnet to move.

3. The adjustable motion self-locking system according to claim 1, characterized in that, The switch structure (4) includes a piezoelectric material part or a magnetostrictive material part; or, an electrostatic electrode group is formed between the distal end of the switch structure (4) and the dial.

4. The adjustable motion self-locking system according to claim 1, characterized in that, A wire hub (13) is further provided on the outer sleeve structure, and an electromagnetic coil (14) is provided on the wire hub (13); The switch structure (4) is fixedly installed or slidably installed in the axial through hole on the wire hub (13), and the dial includes a magnet part.

5. The adjustable motion self-locking system according to claim 4, characterized in that, The switch structure (4) is threadedly connected in the axial through hole of the wire hub (13), and the radial position of the switch structure (4) on the outer sleeve structure can be adjusted; A permanent magnet (15) is provided on the dial, and the permanent magnet (15) forms a magnet part; the switch structure (4) includes an iron core part.

6. The adjustable motion self-locking system according to claim 1, characterized in that, One or more switch structures (4) are arranged circumferentially on the outer sleeve structure, and the switch structures (4) correspond to the dials one by one; A plurality of engaging members (7) are connected to a single paddle, and the plurality of engaging members (7) are located in different engaging guiding portions (9).

7. The adjustable motion self-locking system according to claim 6, characterized in that, The engaging guiding portion (9) includes any one of the following structures: -- An opening that is continuous for 360 degrees in the circumferential direction; -- A slotted structure that is intermittently arranged in the circumferential direction.

8. The adjustable motion self-locking system according to claim 2, characterized in that, The shape of the driving hole (11) is C-shaped or diamond-shaped; The engaging member (7) includes a spherical structure, a square block, or a wedge block.

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