A coupling limiter

Abstract

The utility model provides a kind of coupler's limiting device, including upper shell and lower shell, coupler is located on upper shell, and upper shell is driven coupler to carry out telescopic activity in lower shell by elastic mechanism;Upper shell and lower shell are limited to upper shell by locking structure;Locking structure includes the several struts of being located in upper shell, and the several sliding grooves corresponding with the position of strut in lower shell, and sliding groove and strut are limited to strut by mutual cooperation;Upper shell and lower shell are realized upper and lower elastic activity by first elastic piece, and upper shell is limited by second elastic piece, so that upper shell realizes lifting state and hidden state;When upper shell is in lifting state, upper shell is locked by locking structure, maintains its current lifting state, so that it cannot be moved inward even if downward pressure is exerted on it during use, so as to ensure safe use.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a limiting device for a coupler. Background Technology

[0002] Existing couplers include a lower coupler on the base and an upper coupler on the electrical component. The lower and upper couplers are coupled and conduct electricity. To facilitate coupling, the lower coupler protrudes from the top of the base. When the base is a table, the lower coupler is exposed, which not only easily causes safety issues but is also unsightly. Although there are lift-type couplers in the existing technology that can hide the coupler under the table, their structure is complex, inconvenient for production and daily maintenance, and they lack a locking structure to maintain their current raised state after being raised. This prevents them from moving inward even when downward pressure is applied during use, thus ensuring safety. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a limiting device for a coupler.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A limiting device for a coupler includes an upper housing and a lower housing. The coupler is disposed on the upper housing, and the upper housing drives the coupler to extend and retract within the lower housing via an elastic mechanism. The upper housing and the lower housing are limited by a locking structure. The locking structure includes several pillars disposed on the upper housing and several sliding grooves located within the lower housing corresponding to the positions of the pillars. The sliding grooves cooperate with the pillars to limit the positions of the pillars.

[0006] Furthermore, one end of the slide is provided with a through hole, the radius of which is larger than the short half-axis of the slide; the lower end of the support passes through the through hole and is installed with the lower housing by screws, and moves in and out of the through hole in conjunction with the elastic mechanism.

[0007] Furthermore, a limiting groove is provided on the side wall of the slide corresponding to the lower end of the support column. The support column limits the upper housing by cooperating with the slide through the limiting groove.

[0008] Furthermore, the grooves are evenly distributed on the bottom surface of the lower housing and extend along the circumferential direction of the central axis of the lower housing.

[0009] Furthermore, the elastic mechanism includes a first elastic element, a step is provided on the support column, the first elastic element is sleeved on the support column, its top end abuts against the step, and its bottom end abuts against the bottom of the lower housing.

[0010] Furthermore, the elastic mechanism includes a second elastic element, which is fixedly installed at the bottom of the lower housing and limits the extension and retraction of the upper housing.

[0011] Furthermore, the upper shell is provided with a downwardly extending upper shell connecting block, and the upper shell connecting block is provided with an upper shell limiting block. The upper shell limiting block cooperates with the second elastic element to limit the upper shell.

[0012] Furthermore, the second elastic element includes an elastic element housing and a telescopic gripper. The telescopic gripper is movably installed inside the elastic element housing, and its gripping part extends out from the upper opening of the elastic element housing and movably grips the upper housing connecting block.

[0013] Furthermore, the elastic element housing is provided with a movable groove, and the telescopic grabber is provided with a movable slider that matches the movable groove at the corresponding position. The telescopic grabber moves within the elastic element housing by means of the movable groove and the movable slider.

[0014] Furthermore, the gripper is located on the upper part of the telescopic gripper and extends symmetrically outward. There is a movable gap between the grippers. The inner wall of the gripper is provided with gripping teeth. When the telescopic gripper moves into the outer shell of the elastic element, the gripper is restricted by the upper opening and moves inward relatively through the movable gap, so that the gripping teeth grab the upper shell limiting block for limiting.

[0015] The present invention has the following advantages: the upper and lower shells can move up and down elastically through the first elastic element, and the upper shell is limited by the second elastic element, so that the upper shell can be in a raised state and a hidden state; when the upper shell is in the raised state, the upper shell is locked by the locking structure to maintain its current raised state, so that it cannot move inward even if downward pressure is applied to it during use, thereby ensuring safety in use. Attached Figure Description

[0016] Figure 1 This is an exploded view of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the hidden state of the coupler in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the coupler in the raised state according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the coupler locked state according to an embodiment of the present invention.

[0020] Figure 5 This is a side sectional view of the locked state according to an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the upper shell pushing the second elastic element in an embodiment of the present invention.

[0022] Figure 7 This is an embodiment of the present utility model. Figure 6 Enlarged view at point A.

[0023] Figure 8 This is an exploded front view of the second elastic member according to an embodiment of the present invention.

[0024] Figure 9 This is an exploded view of the back side of the second elastic member according to an embodiment of the present invention.

[0025] Figure reference numerals:

[0026] Upper shell 1, support column 11, limiting groove 111, step 112;

[0027] Upper shell connecting block 12, upper shell limiting block 122, inclined surface 124;

[0028] Lower housing 2, sliding groove 21, through hole 22, second elastic element mounting port 23;

[0029] Elastic mechanism 3, first elastic element 31, second elastic element 32;

[0030] The elastic element housing 33 has an upper opening 331 and a movable groove 332.

[0031] Telescopic gripper 34, gripper part 341, movable slider 342, gripper teeth 343;

[0032] The clearance is 35, and the third elastic element is 36.

[0033] Locking structure 4;

[0034] Coupler 5;

[0035] Positioning structure 6, movable card 61, first step 62, second step 63, first limit block 64, second limit block 65, first channel 66, second channel 67. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] like Figures 1-9 As shown, a limiting device for a coupler is applied to a desktop automatic water-filling kettle. This device is installed below the desktop, which visually hides the coupler inside the desktop when not in use. When needed, the coupler can be raised for normal use. The coupler 5 installed on the desktop is raised and lowered through an elastic mechanism 3. Specifically, the coupler 5 can achieve two modes: raised and hidden, through the elastic mechanism 3, and the raised state of the coupler is limited and locked by a locking structure 4.

[0040] like Figures 1-4 As shown, the limiting device mainly includes an upper housing 1 and a lower housing 2. A coupler 5 is mounted on the upper housing 1, and the coupler 5 is covered by a removable cover (not shown in the figure) to protect the coupler 5 in the hidden state and to make the desktop flatter and more aesthetically pleasing. Specifically, the coupler 5 is the lower coupler, connected and installed with a general water supply mechanism. It is fixedly installed on the top of the upper housing 1, and the fixing method includes, but is not limited to, conventional installation methods such as adhesive bonding, screw fixing, or snap-fit ​​installation. The upper housing 1 is inserted into the lower housing 2 from above, and the elastic mechanism 3 drives the upper housing 1 to extend and retract within the lower housing 2. In other words, it drives the coupler 5 to extend and retract within the lower housing 2, thereby achieving the raised or hidden state.

[0041] The upper housing 1 and the lower housing 2 are limited by the locking structure 4, so that the upper housing 1 can be locked after it is raised, so as to prevent the coupler 5 from moving downward due to external force during water filling or boiling, which would cause work interruption or danger.

[0042] like Figures 2-5 As shown, the specific structure of the locking structure 4 is as follows: The upper housing 1 has several downwardly extending support columns 11 evenly distributed along its bottom outer diameter. In this invention, three support columns 11 are listed. The bottom of the lower housing 2 has a groove 21 corresponding to the position of the support column 11, and one end of the groove 21 has a through hole 22 for the support column 11 to pass through. The upper housing 1 passes through the through hole 22 from top to bottom via the support column 11 and is fixed and limited by screws screwed into the support column 11 from bottom to top within the lower housing 2. Furthermore, to enable the upper housing 1 to be locked within the lower housing 2, i.e., to prevent the coupler 5 from moving into the lower housing 2 under external force when it is in the raised state, the groove 21 is a long arc shape distributed circumferentially around the bottom axis of the lower housing 2. Specifically, the radius of the through hole 22 is larger than the short half-axis of the groove 21, and the outer diameter of the support column 11 is larger than the short half-axis of the groove 21. In order to enable the support column 11 to move within the slide groove 21 and thus achieve the locking state of the upper housing 1, the lower end of the support column 11 is provided with a limiting groove 111. Specifically, the limiting groove 111 is located on the outer walls of both sides of the end of the support column 11 near the slide groove 21, so that the support column 11 can slide along the slide groove 21 and limit the upper housing 1 through the limiting groove 111. That is, the top inner wall of the limiting groove 111 abuts against the top surface of the slide groove 21, so that the upper housing 1 is locked within this height range and cannot move downward. At this time, the coupler 5 is in the raised state, that is, it is raised from below the table to the table and is fitted and installed with the upper coupler for operations such as filling the kettle with water or boiling water.

[0043] like Figure 1 As shown, the structure of the elastic mechanism 3 is as follows, including a first elastic element 31. A step 112 is provided on the support column 11; specifically, the step 112 is located on the upper part of the support column 11, above the limiting groove 111. The first elastic element 31 is sleeved on the support column 11 from bottom to top, with its top end abutting against the bottom of the step 112 and its bottom end abutting against the bottom of the lower housing 2. Specifically, in this utility model, the first elastic element 31 is a compression spring, which plays a role in supporting and resetting the support column 11 upwards; in other words, it supports the upper housing 1. After the first elastic element 31 is installed, when it is in its naturally extended state, the coupler 5 is in a raised state.

[0044] like Figures 5-7 As shown, the elastic mechanism 3 further includes a second elastic element 32. Specifically, the bottom of the lower housing 2 is provided with a second elastic element mounting port 23, the shape of which is adapted to the second elastic element 32, and the second elastic element 32 is installed into the second elastic element mounting port 23 from above by means of snap-fit ​​installation, which facilitates the installation, disassembly, maintenance or replacement of the second elastic element.

[0045] Tutu 6 Figure 7As shown, furthermore, in order to achieve the limiting effect on the upper housing 1, that is, to achieve the hidden mode of the coupler 5, an upper housing connecting block 12 extending downward is provided on the upper housing 11 at the position corresponding to the second elastic member 32. The upper housing connecting block 12 is provided with an upper housing limiting block 122. Specifically, the upper housing limiting block 122 is symmetrically arranged and protrudes outward from both sides of the upper housing connecting block 12. Its top is provided with a first limiting surface 123. The upper housing limiting block 122 cooperates with the second elastic member 32 to limit the upper housing 1.

[0046] Furthermore, the second elastic element 32 includes an elastic element housing 33 and a telescopic gripper 34. The telescopic gripper 34 is movably installed inside the elastic element housing 33. Specifically, the telescopic gripper 34 is installed from above the elastic element housing 33 and can move elastically up and down. It has a gripping part 341 adapted to the upper housing limiting block 122. The inner side of the gripping part 341 is provided with gripping teeth 343. The gripping part 341 extends from the upper opening 331 of the elastic element housing 33 and movably grips the upper housing connecting block 12. Specifically, the gripping teeth 343 abut against the first limiting surface 123 of the upper housing limiting block 122 to limit the upper housing connecting block 12, thereby limiting the upper housing 1. This makes the upper housing 1 and the coupler 5 hidden.

[0047] Furthermore, to enable the telescopic grabber 34 to grip the upper housing connecting block 12, the grabbing part 341 is located on the upper part of the telescopic grabber 34 and extends symmetrically outward, with a movable gap 35 between the grabbing parts 341. When the upper housing 1 is in the raised state, the telescopic grabber 34 separates from the upper housing connecting block 12, at which time the grabbing part 341 extends outward from the upper part of the elastic element housing 33. When the upper housing 1 moves downward and pushes the telescopic grabber 34 to move downward synchronously, due to the limiting effect of the opening 331 on the elastic element housing 33 on the telescopic grabber 34, the grabbing part 341 of the telescopic grabber 34 is pushed to move inward relative to each other through the movable gap 35, thereby the grabbing teeth 343 grip the upper housing limiting block 13 for limiting and locking.

[0048] Furthermore, to enable the telescopic grabber 34 to extend and retract within the elastic element housing 33, a vertically oriented movable groove 332 is provided on the outer wall of the elastic element housing 33. A movable slider 342, corresponding to the movable groove 332, is provided on the telescopic grabber 34. A third elastic element 36 is also provided between the telescopic grabber 34 and the elastic element housing 33. The telescopic grabber 34 extends and retracts vertically within the elastic element housing 33 through the cooperation of the movable groove 332, the movable slider 342, and the third elastic element 36. Specifically, the third elastic element 36 is a compression spring.

[0049] like Figure 8 , Figure 9As shown, furthermore, to position the telescopic grabber 34 when it moves within the elastic member housing 33, a positioning structure 6 is provided within the telescopic grabber 34, including a movable latch 61, a first step 62, a second step 63, a first limiting block 64, a second limiting block 65, a first channel 66, and a second channel 67. The first step 62 and the second step 63 are located on opposite sides within the telescopic grabber 34 and are correspondingly arranged to limit the movable latch 61. The first limiting block 64 is located above the first step 62, and the second limiting block 65 is located above the second step 63, serving as a guide for the movable latch 61, causing it to move along the inclined surfaces of the first limiting block 64 and the second limiting block 65 during movement. Specifically, when the telescopic grabber 34 is pressed down, the movable latch 61 moves along the inner wall of the first channel 66 and falls into the first step 62 and the second step 63, where it is limited by the third elastic member 36. At this time, the telescopic grabber 34 grips the upper housing connecting block 12, and the coupler 5 is in a hidden state. Conversely, when the telescopic grabber 34 is pressed down again, the movable locking piece 61 is affected by the first limiting block 64 and the second limiting block 65, moves along the inclined surface of the first limiting block 64 and the second limiting block 65, enters the second channel 67, and cooperates with the third elastic member 36 to perform a reset operation.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. All technical solutions that those skilled in the art can obtain based on the concept of the present utility model and on the basis of the prior art through logical analysis, reasoning or limited experiments should be within the protection scope determined by the claims.

Claims

1. A limiting device for a coupler, characterized in that, The device includes an upper housing (1) and a lower housing (2). A coupler (5) is disposed on the upper housing (1). The upper housing (1) drives the coupler (5) to extend and retract within the lower housing (2) through an elastic mechanism (3). The upper housing (1) and the lower housing (2) are limited by a locking structure (4). The locking structure (4) includes several pillars (11) disposed on the upper housing (1) and several sliding grooves (21) located in the lower housing (2) corresponding to the positions of the pillars (11). The sliding grooves (21) cooperate with the pillars (11) to limit the pillars (11).

2. The limiting device for the coupler according to claim 1, characterized in that, One end of the slide (21) is provided with a through hole (22), the radius of which is greater than the short half-axis of the slide (21); the lower end of the support (11) passes through the through hole (22) and is installed with the lower housing (2) by screws, and moves in and out of the through hole (22) in conjunction with the elastic mechanism (3).

3. The limiting device for the coupler according to claim 1, characterized in that, The lower end of the support column (11) is provided with a limiting groove (111) on the side wall of the slide groove (21). The support column (11) cooperates with the slide groove (21) through the limiting groove (111) to limit the upper shell (1).

4. The limiting device for the coupler according to claim 1, characterized in that, The grooves (21) are evenly distributed on the bottom surface of the lower housing (2) and extend along the circumferential direction of the central axis of the lower housing (2).

5. The limiting device for the coupler according to claim 1, characterized in that, The elastic mechanism (3) includes a first elastic element (31), a step (112) is provided on the support column (11), the first elastic element (31) is sleeved on the support column (11), its top end abuts against the step (112), and its bottom end abuts against the bottom of the lower housing (2).

6. The limiting device for the coupler according to claim 1, characterized in that, The elastic mechanism (3) includes a second elastic element (32), which is fixedly installed at the bottom of the lower housing (2) and limits the extension and retraction of the upper housing (1).

7. The limiting device for the coupler according to claim 6, characterized in that, The upper shell (1) is provided with a downwardly extending upper shell connecting block (12), and the upper shell connecting block (12) is provided with an upper shell limiting block (122). The upper shell limiting block (122) cooperates with the second elastic member (32) to limit the upper shell (1).

8. The limiting device for the coupler according to claim 7, characterized in that, The second elastic element (32) includes an elastic element housing (33) and a telescopic gripper (34). The telescopic gripper (34) is movably installed inside the elastic element housing (33), and its gripping part (341) extends out from the upper opening (331) of the elastic element housing (33) and movably grips the upper housing connecting block (12).

9. The limiting device for the coupler according to claim 8, characterized in that, The elastic component housing (33) is provided with a movable groove (332), and the telescopic grabber (34) is provided with a movable slider (342) that is adapted to the movable groove (332) at the corresponding position. The telescopic grabber (34) moves within the elastic component housing (33) through the movable groove (332) and the movable slider (342).

10. The limiting device for the coupler according to claim 9, characterized in that, The gripper (341) is located on the upper part of the telescopic gripper (34) and extends symmetrically outward. There is a movable gap (35) between the grippers (341). The inner wall of the gripper (341) is provided with gripping teeth (343). When the telescopic gripper (34) moves into the elastic outer shell (33), the gripper (341) is restricted by the upper opening (331) and moves inward through the movable gap (35), so that the gripping teeth (343) grip the upper shell limiting block (13) for limiting.

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