Spring-driven locking mechanism

Abstract

The utility model relates to a locking mechanism driven by a spring. The locking mechanism comprises a locking piece matched with a shell. The locking piece comprises a spring bolt and a mounting plate connected to one end of the spring bolt; a connecting plate is arranged on the mounting plate; one side surface of the connecting plate is provided with a key, and the other side surface of the connecting plate is provided with extension plates which are oppositely arranged; a sliding plate is arranged on the extension plate; a sliding groove matched with the sliding plate is formed in the shell; one end, far away from the spring bolt, of the sliding plate partially extends into the sliding groove; by means of the matching structure partially extending into the sliding groove, the contact area of the sliding plate and the sliding groove can be obviously reduced, and the locking piece can be driven to move more easily in the actual use process. The extension plate also enables a certain spacing distance to be formed between the sliding plate and the key, the extension plate separates the sliding plate from the connecting plate, the spring bolt is arranged opposite to the extension plate, the key is arranged close to the bottom of the connecting plate, and sliding of the spring bolt is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic product technical field especially, it relates to a spring drive's locking mechanism. BACKGROUND

[0002] With the development of health medical industry, all kinds of rehabilitation instruments are used in people's physical rehabilitation. All kinds of rehabilitation instruments use external hanging battery pack in large quantities, and button type hook battery pack is used in rehabilitation instruments in large quantities. But the existing locking mechanism locking and unlocking back and forth switching process, will produce greater friction, will affect the subsequent service life. UTILITARY MODEL CONTENT

[0003] In order to solve the above problems of prior art, the utility model provides a spring drive's locking mechanism.

[0004] In order to achieve the above purpose, the utility model adopts the main technical scheme includes:

[0005] A spring drive's locking mechanism, including the locking piece that cooperates with the shell, the locking piece includes the lock tongue and the mounting plate connected to the one end of lock tongue, the mounting plate is equipped with the connecting plate, the extension direction of lock tongue and connecting plate is parallel, one side surface of connecting plate is equipped with the button, and the opposite side surface is equipped with the extension plate opposite arrangement, the extension plate is equipped with the sliding plate, the shell is equipped with the sliding groove that cooperates with sliding plate, the one end portion of sliding plate away from lock tongue extends into sliding groove, the opposite two elastic piece limiting portions of mounting plate are equipped with the elastic piece, the elastic piece limiting portion is equipped with the elastic piece, and the one end of elastic piece away from elastic piece limiting portion cooperates with the shell limit, the shell is equipped with the lock tongue let -go hole that cooperates with the one end of lock tongue away from connecting plate, the shell is equipped with the limit groove that cooperates with button, the size of limit groove in the first direction is greater than the size of button in the first direction, the first direction is the moving direction of lock tongue, and the distance of lock tongue in the first direction that extends out lock tongue let -go hole is less than or equal to the distance that limit groove in the first direction is greater than button in the first direction.

[0006] In an embodiment of the utility model, the lock tongue is opposite the extension plate, and the button is close to the bottom of the connecting plate.

[0007] In an embodiment of the utility model, the shell includes bottom shell and top shell.

[0008] In an embodiment of the utility model, the outer side surface of the button does not exceed the outer side surface of the position where the limit groove is located.

[0009] In an embodiment of the utility model, the middle part of the button forms a concave part.

[0010] In one embodiment of the present invention, the two sliding plates extend from the extension plate in opposite directions.

[0011] In one embodiment of the present invention, the sliding groove includes a first baffle and a second baffle disposed opposite to each other; the second baffle is disposed near the button; the top of the second baffle extends beyond the position of the top of the first baffle to form a stop portion.

[0012] In one embodiment of the present invention, the first baffle and the second baffle are provided with dot-shaped protrusions or semi-cylinders on the side of the sliding groove.

[0013] In one embodiment of this utility model, the elastic element is a spring; the housing is provided with a limiting post inserted into the spring.

[0014] In one embodiment of this utility model, the elastic element limiting part is a limiting post or a receiving groove.

[0015] The beneficial effects of this utility model are: the end of the sliding plate away from the latch extends into the sliding groove; through the matching structure of partially extending into the sliding groove, the contact area between the sliding plate and the sliding groove can be significantly reduced, making it easier to drive the movement of the locking component in actual use; the extension plate also creates a certain gap between the sliding plate and the button, the extension plate separates the sliding plate from the connecting plate, the latch is set relative to the extension plate, and the button is set near the bottom of the connecting plate, which is beneficial to the sliding of the latch. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 yes Figure 2 A three-dimensional schematic diagram of section AA along the middle;

[0020] Figure 4 yes Figure 2 Explosion diagram along section AA;

[0021] Figure 5 yes Figure 4 Enlarged view of section B;

[0022] Figure 6 is a perspective view of the locking piece of the utility model;

[0023] Mark explanation:

[0024] 100, shell; 110, bottom shell; 111, limiting groove; 112, sliding groove; 113, first baffle; 114, second baffle; 115, stop portion; 116, limiting column; 120, top shell; 121, lock tongue accommodation hole; 200, locking piece; 210, lock tongue; 220, mounting plate; 221, elastic piece limiting portion; 230, connecting plate; 240, button; 241, inner recess; 250, extension plate; 260, sliding plate; 270, elastic piece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "have", "connection" and the like, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through the indirect connection of intermediate medium, can be two elements inside the communication。For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] As Figures 1-4 The utility model discloses a spring drive's locking mechanism, including the locking piece 200 with the shell 100 cooperation, locking piece 200 includes lock tongue 210 and the mounting plate 220 connected to the one end of lock tongue 210, lock tongue 210 and mounting plate 220 are connected to form an integral structure, so that lock tongue 210 can stably install in the mechanism, and mounting plate 220 provides the mounting base and support for lock tongue 210, guarantees that lock tongue 210 does not occur wobble or displacement in the working process, ensures the reliability of locking function.

[0030] In an embodiment, lock tongue 210, mounting plate 220, connecting plate 230 are integral structure;The setting of mounting plate 220 makes the position of lock tongue 210 and connecting plate 230 can be freely set according to the internal space, and is not limited to setting in the same plane.

[0031] In an embodiment, the mounting plate 220 is equipped with connecting plate 230;The extension direction of lock tongue 210 and connecting plate 230 is parallel;The extension direction of lock tongue 210 is along the first direction, and the extension direction of connecting plate 230 is parallel to the first direction;Lock tongue 210 and connecting plate 230 can not be set on the opposite position of mounting plate 220, that is, connecting plate 230 and lock tongue 210 can be misaligned setting;And the first direction is parallel to the moving direction of lock tongue 210, so that connecting plate 230 can also move along the first direction;Connecting plate 230 provides mounting position for key 240 and extension plate 250 and the like components, so that these components can work cooperatively with lock tongue 210.Connecting plate 230 plays the role of connection and force transmission, and the operating force of key 240 is transmitted to lock tongue 210, to realize locking and unlocking function.

[0032] In an embodiment, one side of the connecting plate 230 is provided with a button 240, and the other side is provided with an extension plate 250 arranged oppositely; the extension plate 250 is provided with a sliding plate 260; the extension plate 250 provides a mounting position for the sliding plate 260, and the extension plate 250 cooperates with the sliding plate 260 to guide the movement direction of the locking piece 200, so as to ensure that the locking piece 200 moves on a specified track, and improve the stability and accuracy of the mechanism; the extension plate 250 forms a reinforcing rib structure at the back of the connecting plate 230, so as to ensure the strength of the button 240.

[0033] In an embodiment, the shell 100 is provided with a sliding groove 112 cooperating with the sliding plate 260; the sliding groove 112 provides accurate guidance for the movement of the locking piece 200. The sliding plate 260 slides in the sliding groove 112, so that the locking piece 200 can only move in a specific direction (i.e. a first direction), avoiding the deviation or shaking of the locking piece 200 during movement, ensuring that the locking bolt 210 can accurately insert or exit the locking bolt gap 121, and improving the accuracy and reliability of the locking mechanism.

[0034] In an embodiment, the sliding plate 260 is partially inserted into the sliding groove 112 at an end away from the locking bolt 210; through the cooperation of the partially inserted structure, the contact area between the sliding plate 260 and the sliding groove 112 can be significantly reduced, and the movement of the locking piece 200 is more easily driven in actual use.

[0035] In an embodiment, the mounting plate 220 is oppositely provided with two elastic piece limiting portions 221; the elastic piece limiting portion 221 is provided with an elastic piece 270; an end of the elastic piece 270 away from the elastic piece limiting portion 221 is in limiting cooperation with the shell 100; when the locking piece 200 is subjected to an external force, the elastic piece 270 can be elastically deformed to store and release energy. During the locking process, the elastic piece 270 provides elastic force to keep the locking bolt 210 in an extended state, so as to realize the locking function; during the unlocking process, the elastic force of the elastic piece 270 helps the locking bolt 210 to reset, so as to ensure that the locking mechanism can work normally and cyclically.

[0036] In an embodiment, the shell 100 is provided with a locking bolt gap 121 cooperating with an end of the locking bolt 210 away from the connecting plate 230; the locking bolt gap 121 provides a space for the extension and retraction of the locking bolt 210. The locking bolt 210 can cooperate with an external component to be locked through the locking bolt gap 121, so as to realize the locking and unlocking operation.

[0037] In one embodiment, the housing 100 is provided with a limiting groove 111 that mates with the button 240; the dimension of the limiting groove 111 in a first direction is larger than the dimension of the button 240 in a first direction; this design provides a certain amount of room for the operation of the button 240. When the user presses the button 240, the button 240 can move within the limiting groove 111, thereby driving the bolt 210 to extend or retract. The first direction is the direction of movement of the bolt 210; the distance by which the bolt 210 extends beyond the bolt clearance hole 121 in the first direction is less than or equal to the distance by which the limiting groove 111 in the first direction is larger than the distance by which the button 240 in the first direction. This design ensures that the bolt 210 will not extend beyond the bolt clearance hole 121 when it is in its retracted limit position, and the limiting groove 111 also limits the movement distance of the bolt 210, preventing it from disengaging from the bolt clearance hole 121.

[0038] The fit between the latch 210 and the latch clearance hole 121, and the fit between the sliding groove 112 and the bottom of the sliding plate 260, make the two ends of the locking member 200 bear force, resulting in better relative stability of the locking member 200. It also ensures a smaller contact area at both ends of the locking member 200, resulting in less resistance during movement.

[0039] In one embodiment, the extension plate 250 also creates a certain gap between the sliding plate 260 and the button 240. The extension plate 250 separates the sliding plate 260 from the connecting plate 230. The latch 210 is positioned relative to the extension plate 250, and the button 240 is positioned near the bottom of the connecting plate 230, which facilitates the sliding of the latch 210. Figure 6 As shown, when a downward force is applied to button 240, button 240 will generally also be subjected to a leftward pressure. The force points of sliding plate 260 and locking tongue 210 are not in the same plane, and button 240 is located near the bottom of connecting plate 230, which makes the force at the force points of locking tongue 210 and sliding plate 260 uneven, making it easier to produce initial sliding, that is, it is not easy to get stuck during initial sliding. It can be understood that the downward movement of locking member 200 needs to overcome the elastic force of elastic member 270 and friction. When locking tongue 210 and sliding plate 260 are in the same plane, the leftward pressure on button 240 will be evenly transmitted to the force points of locking tongue 210 and sliding plate 260, the contact area will be larger, and the resulting resistance effect will be more obvious.

[0040] In an embodiment, the shell 100 comprises a bottom shell 110 and a top shell 120. By dividing the shell 100 into a bottom shell 110 and a top shell 120, the structure of each part is relatively simple in the manufacturing process, the mold design and manufacturing difficulty is reduced, and the processing technology is easier to implement. In the assembly process, the bottom shell 110 and the top shell 120 can be assembled with other parts respectively, and then the two are combined together, so that the assembly process is more orderly and convenient.

[0041] In an embodiment, the outer side of the key 240 does not exceed the outer side of the position where the limiting groove 111 is located. That means the key 240 is protected to a certain extent by the limiting groove 111. In the daily use of the locking mechanism, whether during equipment installation, transportation or normal operation, the key 240 is not easily subjected to direct impact and scratching by external objects, thereby reducing the possibility of damage to the key 240 due to external impact and prolonging the service life of the key 240. The key 240 is hidden in the limiting groove 111 and does not protrude from the surface of the shell 100, reducing the probability of accidental touch and resulting in misoperation of the key 240.

[0042] In an embodiment, the middle part of the key 240 forms an inner recess 241. The design of the inner recess 241 can provide a natural placement position for the finger. When the user operates the key 240, the finger can be more accurately positioned on the key 240, and it is not easy to slip or press off, improving the accuracy of operation.

[0043] In an embodiment, the two sliding plates 260 extend from the extension plate 250 in opposite directions.

[0044] As shown in Figure 5 In an embodiment, the sliding groove 112 comprises a first baffle 113 and a second baffle 114 arranged opposite to each other; the second baffle 114 is arranged close to the direction of the key 240; and the top of the second baffle 114 exceeds the position where the top of the first baffle 113 is located to form a stop portion 115. In the assembly process, the stop portion 115 can serve as an important positioning reference point. The assembler can accurately install the sliding plate 260 into the sliding groove 112 according to the position of the stop portion 115, and ensure that the relative position of the sliding plate 260 and other components is correct. This helps to improve assembly efficiency and accuracy, and reduce errors and rework in the assembly process.

[0045] In an embodiment of the present application, the first baffle 113 and the second baffle 114 are provided with a dot-shaped protrusion or a semi-cylinder (not shown in the figure) on the side of the sliding groove 112. When the first baffle 113 and the second baffle 114 are provided with the dot-shaped protrusion on the side of the sliding groove 112, the contact between the sliding plate 260 and the first baffle 113 and / or the second baffle 114 will form a plurality of dot-shaped contacts, which can further reduce the moving resistance, but the corresponding production difficulty will increase. When the first baffle 113 and the second baffle 114 are provided with the semi-cylinder on the side of the sliding groove 112, the extension direction of the semi-cylinder is parallel to the extension direction of the first baffle 113, and the contact between the sliding plate 260 and the first baffle 113 and / or the second baffle 114 will form a line contact, which can also further reduce the frictional resistance, and meanwhile will not increase the production difficulty.

[0046] In an embodiment, the elastic member 270 is a spring, and the housing 100 is provided with a limiting column 116 inserted into the spring.

[0047] In an embodiment, the elastic member limiting portion 221 is the limiting column 116 or a containing groove.

[0048] The above description is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the present application specification and drawings is also included in the patent protection range of the present application.

Claims

1. A spring-actuated locking mechanism, characterized by: The application relates to a lock (200) matched with a shell (100), wherein the lock (200) comprises a lock tongue (210) and a mounting plate (220) connected to one end of the lock tongue (210); the mounting plate (220) is provided with a connecting plate (230); the lock tongue (210) is parallel to the extending direction of the connecting plate (230); one side of the connecting plate (230) is provided with a button (240), and the other side is provided with an extending plate (250) oppositely arranged; the extending plate (250) is provided with a sliding plate (260); the shell (100) is provided with a sliding groove (112) matched with the sliding plate (260); one end of the sliding plate (260) away from the lock tongue (210) extends into the sliding groove (112); the mounting plate (220) is oppositely provided with two elastic element limiting portions (221); the elastic element limiting portions (221) are provided with elastic elements (270); one end of the elastic elements (270) away from the elastic element limiting portions (221) is matched with the shell (100) in position; the shell (100) is provided with a lock tongue allowing hole (121) matched with one end of the lock tongue (210) away from the connecting plate (230); the shell (100) is provided with a limiting groove (111) matched with the button (240); the size of the limiting groove (111) in a first direction is greater than the size of the button (240) in the first direction; the first direction is the moving direction of the lock tongue (210); the distance of the lock tongue (210) extending out of the lock tongue allowing hole (121) in the first direction is less than or equal to the distance of the limiting groove (111) in the first direction greater than the distance of the button (240) in the first direction.

2. A spring-actuated locking mechanism according to claim 1, wherein: The lock tongue (210) is arranged opposite to the extending plate (250); and the button (240) is arranged close to the bottom of the connecting plate (230).

3. A spring-actuated locking mechanism according to claim 1, wherein: The shell (100) comprises a bottom shell (110) and a top shell (120).

4. A spring-actuated locking mechanism according to claim 1, wherein: The outer side of the button (240) does not exceed the outer side of the position where the limiting groove (111) is located.

5. A spring-actuated locking mechanism according to claim 4, wherein: The middle part of the button (240) forms an inner recess (241).

6. A spring-actuated locking mechanism according to claim 1, wherein: The two sliding plates (260) extend from the extending plate (250) in directions away from each other.

7. A spring-actuated locking mechanism as defined in claim 1, wherein: The sliding groove (112) comprises a first baffle (113) and a second baffle (114) oppositely arranged; the second baffle (114) is arranged close to the direction of the button (240); the top of the second baffle (114) exceeds the position where the top of the first baffle (113) is located to form a stop portion (115).

8. A spring-actuated locking mechanism according to claim 7, wherein: The first baffle (113) and the second baffle (114) are provided with a dot-shaped protrusion or a semi-cylinder on the side of the sliding groove (112).

9. A spring-actuated locking mechanism as defined in claim 1, wherein: The elastic element (270) is a spring; and the shell (100) is provided with a limiting column (116) inserted into the spring.

10. A spring-actuated locking mechanism according to claim 9, wherein: The elastic element limiting portion (221) is the limiting column (116) or a containing groove.

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