Self-locking structure of quick-assembly cover plate

Abstract

The utility model discloses a self-locking structure of a fast-assembly cover plate. The self-locking structure is designed to lock and unlock a fast assembly and disassembly mode. The self-locking structure of the fast-assembly cover plate comprises an adapter shaft, a base, a positioning rod, a locking piece, a locking spring and a self-locking piece. The adapter shaft is arranged in a seat ring shaft part which is in running fit with the cover plate; the positioning rod and the base are relatively fixed, a limiting ring groove is formed in the circumferential surface of the top end of the positioning rod, and a through hole allowing the positioning rod to penetrate through is formed in the adapter shaft; the locking piece is in sliding fit with the adapter shaft in the radial direction of the through hole; the locking spring is arranged between the adapter shaft and the locking piece and used for providing elastic force so that the end of the locking piece can be embedded into the limiting ring groove of the positioning rod in the penetrating hole in a matched mode. And the self-locking piece is rotationally matched on the adapter shaft, and has a state of limiting the positioning rod from axially moving relative to the through hole in the rotating process.

Description

Technical Field

[0001] The utility model relates to the technical field of toilet cover plates, in particular to a self-locking structure of a quick-install cover plate. Background Art

[0002] The quick-install panel of the toilet usually does not need to be disassembled at the hinge position, but instead uses a quick disassembly structure to achieve a simple and convenient assembly method. The conventional quick-install panel is matched with the base of the toilet in one of the following two ways:

[0003] The first method is to design a press-to-switch mechanism on the quick-release cover. After the user presses the corresponding button, the self-locking structure is unlocked, and the cover can then be removed. This method has the disadvantages of complex structure, cumbersome organization, and high cost.

[0004] The second is that the cover can only be removed when it is rotated to a state perpendicular to the seat ring; this structure; this method has specific operating requirements, which is different from the conventional cover removal method. It is difficult for ordinary people to adapt to it, and it may also cause the cover to fall off due to misoperation during use. Utility Model Content

[0005] The utility model aims to provide a self-locking structure of a quick-install cover plate, so as to solve the problems existing in the prior art and to lock and unlock the quick disassembly and assembly by designing a self-locking structure.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A self-locking structure for a quick-install cover plate, comprising an adapter shaft, a base, a positioning rod, a locking piece, a locking spring and a self-locking piece; the adapter shaft is arranged in a seat ring shaft portion that rotatably cooperates with the cover plate; the positioning rod is relatively fixed to the base, a limiting ring groove is arranged on the circumferential surface of the top end thereof, and the adapter shaft is provided with a through hole for the positioning rod to pass through; the locking piece is slidably engaged on the adapter shaft along the radial direction of the through hole; the locking spring is arranged between the adapter shaft and the locking piece, and is used to provide elastic force so that the end of the locking piece is embedded in the limiting ring groove of the positioning rod that cooperates in the through hole; the self-locking piece is rotatably engaged on the adapter shaft, and during its rotation, it has a state in which the positioning rod is restricted from axially moving relative to the through hole.

[0008] The first end of the seat ring shaft portion is provided with the adapter shaft, and the second end thereof is provided with a damper. Both ends of the damper are respectively fixed relatively to the cover plate and the adapter shaft.

[0009] The positioning rod is relatively fixed to the base by means of threaded connection.

[0010] The adapter shaft is provided with a slide groove for sliding cooperation with the locking member, the first end of the slide groove is connected to the side wall of the through hole, and the two ends of the locking spring respectively abut against the second end of the slide groove and the locking member.

[0011] The self-locking member is rotatably engaged on the end face of the adapter shaft and is coaxially arranged with the adapter shaft, and a spring sheet is arranged on the circumferential surface of the self-locking member, the spring sheet and the locking member are respectively located on both sides of the positioning rod, and a limit block is arranged at the end of the spring sheet and is embedded in the limit ring groove as the self-locking member rotates.

[0012] Preferably, a yielding slope is provided on the surface of the limiting block.

[0013] Preferably, the end face shield of the adapter shaft is provided with an end cover for preventing the self-locking member from loosening from the end face of the adapter shaft, and the end face of the end cover is provided with a through hole, and the self-locking member has an operating hole coaxially arranged with the through hole.

[0014] Preferably, the end surface of the adapter shaft is provided with a movable groove for rotational engagement of the self-locking member.

[0015] The self-locking member is an annular member with a notch; the self-locking member is sleeved on the adapter shaft and located at the end face of the locking member away from the positioning rod, and is used to limit the end of the locking member from escaping from the limiting ring groove of the positioning rod.

[0016] Preferably, a paddle is provided on the circumferential surface of the self-locking member, and a movable opening for the paddle to movably cooperate with is provided on the shaft portion of the seat ring.

[0017] After adopting the above technical solution, the utility model has the following technical effects:

[0018] The user can change the locking state of the quick-release cover by operating the self-locking part. When the self-locking part is switched to the quick-release state, the positioning rod is not locked, and quick disassembly and assembly can be achieved by moving the positioning rod axially in the perforation. This can be done at any angle without angle restrictions, and the operation is easier. When the self-locking part is switched to the self-locking state, the positioning rod is restricted from axial movement, and the cover and seat ring cannot be removed at any angle, which can not only avoid user misoperation, but also achieve anti-theft to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model;

[0020] Figure 2 It is a partial structural exploded view of the first embodiment of the utility model;

[0021] Figure 3 A three-dimensional diagram of a self-locking member according to the first embodiment of the utility model;

[0022] Figure 4 It is a cross-sectional view of the first embodiment of the utility model in the quick-installation state;

[0023] Figure 5 It is a partial structural stereogram of the first embodiment of the utility model in the quick-installation state;

[0024] Figure 6 It is a cross-sectional view of the first embodiment of the utility model in a self-locking state;

[0025] Figure 7 It is a partial structural stereogram of the first embodiment of the utility model in a self-locking state;

[0026] Figure 8 It is a perspective view of the second embodiment of the utility model;

[0027] Fig. 9 It is a partial structural exploded view of the second embodiment of the utility model;

[0028] Fig.10 It is a cross-sectional view of the second embodiment of the utility model in the quick-installation state;

[0029] Fig.11 It is a partial structural stereogram of the second embodiment of the utility model in the quick-installation state;

[0030] Fig.12 It is a cross-sectional view of the second embodiment of the utility model in a self-locking state;

[0031] Fig.13 It is a partial structural stereogram of the second embodiment of the utility model in a self-locking state;

[0032] Description of Figure Numbers:

[0033] 1-adapter shaft; 11-through hole; 12-slide groove; 13-movable groove; 2-base; 3-positioning rod; 31-limiting ring groove; 4-locking member; 5-locking spring; 6-self-locking member; 61-spring; 62-limiting block; 621-giving slope; 63-operating hole; 64-notch; 65-paddle; 7-damper; 8-end cover; 81-through hole; 10-cover plate; 20-seat ring shaft; 201-movable opening. DETAILED DESCRIPTION

[0034] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0035] The utility model discloses a self-locking structure of a quick-install cover plate, comprising a transfer shaft 1, a base 2, a positioning rod 3, a locking member 4, a locking spring 5 and a self-locking member 6;

[0036] The adapter shaft 1 is disposed in the seat ring shaft portion 20 which is rotatably matched with the cover plate 10;

[0037] The positioning rod 3 is relatively fixed to the base 2, and a limiting annular groove 31 is provided on the circumference of the top end thereof, and the adapter shaft 1 is provided with a through hole 11 for the positioning rod 3 to pass through;

[0038] The locking member 4 is slidably fitted on the adapter shaft 1 along the radial direction of the through hole 11;

[0039] The locking spring 5 is arranged between the adapter shaft 1 and the locking member 4, and is used to provide elastic force to make the end of the locking member 4 fit into the limiting ring groove 31 of the positioning rod 3 in the through hole 11, thereby preventing the positioning rod 3 from being separated from the adapter shaft 1, and realizing the installation of the cover plate 10 and the seat ring on the base 2;

[0040] The self-locking member 6 is rotatably engaged with the adapter shaft 1 , and during its rotation, it restricts the positioning rod 3 from axially moving relative to the through hole 11 .

[0041] Through the above scheme, the user can change the locking state of the quick-release cover by operating the self-locking part 6. When the self-locking part 6 is switched to the quick-release state, the positioning rod 3 is not locked, and the positioning rod 3 can be quickly disassembled and assembled by moving the positioning rod 3 axially in the through hole 11. This can be done at any angle without angle restrictions, and the operation is easier. When the self-locking part 6 is switched to the self-locking state, the positioning rod 3 is restricted from axial movement, and the cover 10 and the seat ring cannot be removed at any angle, which can not only avoid user's misoperation, but also achieve anti-theft to a certain extent.

[0042] In some embodiments of the utility model, the first end of the seat ring shaft 20 is provided with the above-mentioned adapter shaft 1, and the second end thereof is provided with a damper 7, and the two ends of the damper 7 are respectively relatively fixed to the cover plate 10 and the adapter shaft 1, so that the cover plate 10 and the seat ring have a slow-down function.

[0043] In some embodiments of the present invention, the positioning rod 3 is relatively fixed to the base 2 by means of a threaded connection, and the height of the limiting ring groove 31 of the positioning rod 3 relative to the base 2 can be adjusted to adapt to different products.

[0044] In some embodiments of the utility model, the above-mentioned adapter shaft 1 is provided with a slide groove 12 for sliding cooperation with the locking member 4, the first end of the slide groove 12 is connected to the side wall of the through hole 11, and the two ends of the locking spring 5 respectively abut the second end of the slide groove 12 and the locking member 4, for pushing the locking member 4 toward the through hole 11.

[0045] The self-locking member 6 can limit the axial movement of the positioning rod 3 in the through hole 11 in at least two ways: one is to directly act on the positioning rod 3 (such as the limiting ring groove 31 of the positioning rod 3) to realize the axial limiting function, as shown in the first embodiment described below; the other is to act on the locking member 4 to axially limit the locking member 4, thereby indirectly limiting the axial movement of the positioning rod 3, as shown in the second embodiment described below.

[0046] See also Figures 1 to 7 , showing the first embodiment of the utility model.

[0047] In the first embodiment, the self-locking member 6 is rotatably engaged on the end face of the adapter shaft 1 and is coaxially arranged with the adapter shaft 1, and a spring sheet 61 is arranged on the circumferential surface of the self-locking member 6. The spring sheet 61 and the locking member 4 are respectively located on both sides of the positioning rod 3, and a limit block 62 is arranged at the end of the spring sheet 61, which is embedded in the limit ring groove 31 as the self-locking member 6 rotates, thereby achieving the purpose of axially limiting the positioning rod 3.

[0048] In a further solution of the first embodiment, a paving inclined surface 621 is provided on the surface of the limit block 62 so that the limit block 62 can be more easily embedded in the limit ring groove 31 when the self-locking member 6 rotates.

[0049] In a further solution of the first embodiment, the end face cover of the above-mentioned adapter shaft 1 is provided with an end cover 8, which is used to prevent the self-locking member 6 from being loosened from the end face of the adapter shaft 1, and the end face of the end cover 8 is provided with a through hole 81, and the self-locking member 6 has an operating hole 63 coaxially arranged with the through hole 81. When the self-locking member 6 needs to be rotated, a tool corresponding to the operating hole 63 (for example, the operating hole 63 has a hexagonal cross section, and the tool is an external hexagonal wrench) can be passed through the through hole 81 and inserted into the operating hole 63 to drive the self-locking member 6 to rotate. At the same time, since a special tool is required to rotate the self-locking member 6, the self-locking function becomes safer and the anti-theft performance is more stable.

[0050] In a further solution of the first embodiment, the end surface of the adapter shaft 1 is provided with a movable groove 13 for rotational engagement of the self-locking member 6 , which can be used to limit the engagement position of the self-locking member 6 on the end surface of the adapter shaft 1 .

[0051] See also Figure 4 and Figure 5 When the limiting block 62 of the self-locking member 6 is misaligned with the limiting ring groove 31 of the positioning rod 3, the self-locking member 6 will not limit the axial movement of the positioning rod 3; see Figure 6 and Figure 7 When the limit block 62 of the self-locking member 6 is opposite to the limit ring groove 31 of the positioning rod 3, the limit block 62 of the self-locking member 6 is embedded in the limit ring groove 31 under the elastic force of the spring sheet 61, and the positioning rod 3 cannot move axially.

[0052] See also Figures 8 to 13, showing the second embodiment of the utility model.

[0053] In the second embodiment, the self-locking member 6 is an annular member with a notch 64; the self-locking member 6 is sleeved on the adapter shaft 1 and located at the end surface of the locking member 4 away from the positioning rod 3, and is used to limit the end of the locking member 4 from being separated from the limiting ring groove 31 of the positioning rod 3. When the user rotates the self-locking member 6 and makes its notch 64 face the locking member 4, the locking member 4 can be forced to separate from the positioning rod 3, so that the cover plate 10 can be installed or removed.

[0054] Furthermore, a paddle 65 is disposed on the circumference of the self-locking member 6 , and a movable opening 201 for the paddle 65 to flexibly cooperate with is disposed on the seat ring shaft portion 20 , so that the user can operate the self-locking member 6 at the rear of the seat ring.

[0055] See also Fig.10 and Fig.11 When the notch 64 of the self-locking member 6 is opposite to the end of the locking member 4, the self-locking member 6 does not block the axial movement of the locking member 4 on the adapter shaft 1, and the cover plate 10 can be quickly disassembled or quickly assembled; see Fig.12 and Fig.13 When the notch 64 of the self-locking member 6 is misaligned with the end of the locking member 4, the self-locking member 6 blocks the axial movement of the locking member 4, so that its end is embedded in the limiting ring groove 31 of the positioning rod 3, or prevents the positioning rod 3 from penetrating into the through hole 11, and the cover plate 10 cannot be quickly disassembled or quickly installed.

[0056] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A self-locking structure for a quick-install cover, characterized in that: It includes a transfer shaft, a base, a positioning rod, a locking piece, a locking spring and a self-locking piece; The adapter shaft is arranged in the shaft portion of the seat ring which is rotatably matched with the cover plate; The positioning rod is relatively fixed to the base, a limiting ring groove is arranged on the circumference of the top end thereof, and the adapter shaft is provided with a through hole for the positioning rod to pass through; The locking member is slidably fitted on the adapter shaft along the radial direction of the through hole; The locking spring is arranged between the adapter shaft and the locking member, and is used to provide elastic force to make the end of the locking member fit into the limiting ring groove of the positioning rod in the through hole; The self-locking member is rotationally engaged with the adapter shaft, and during its rotation, it restricts the positioning rod from axially moving relative to the through hole.

2. The self-locking structure of the quick-release cover according to claim 1, characterized in that: The first end of the seat ring shaft portion is provided with the adapter shaft, and the second end thereof is provided with a damper. Both ends of the damper are respectively fixed relatively to the cover plate and the adapter shaft.

3. The self-locking structure of the quick-release cover according to claim 1, characterized in that: The positioning rod is relatively fixed to the base by means of threaded connection.

4. The self-locking structure of the quick-release cover according to claim 1, characterized in that: The adapter shaft is provided with a slide groove for sliding cooperation with the locking member, the first end of the slide groove is connected to the side wall of the through hole, and the two ends of the locking spring respectively abut against the second end of the slide groove and the locking member.

5. The self-locking structure of the quick-install cover according to any one of claims 1 to 4, characterized in that: The self-locking member is rotatably engaged on the end face of the adapter shaft and is coaxially arranged with the adapter shaft, and a spring sheet is arranged on the circumferential surface of the self-locking member, the spring sheet and the locking member are respectively located on both sides of the positioning rod, and a limit block is arranged at the end of the spring sheet and is embedded in the limit ring groove as the self-locking member rotates.

6. The self-locking structure of the quick-release cover according to claim 5, characterized in that: The surface of the limit block is provided with a yielding inclined surface.

7. The self-locking structure of the quick-install cover according to claim 5, characterized in that: The end face of the adapter shaft is provided with an end cover for preventing the self-locking member from loosening from the end face of the adapter shaft, and the end face of the end cover is provided with a through hole, and the self-locking member has an operating hole coaxially arranged with the through hole.

8. The self-locking structure of the quick-install cover according to claim 5, characterized in that: The end surface of the transfer shaft is provided with a movable groove for rotational engagement of the self-locking member.

9. The self-locking structure of the quick-install cover according to any one of claims 1 to 4, characterized in that: The self-locking member is an annular member with a notch; the self-locking member is sleeved on the adapter shaft and located at the end face of the locking member away from the positioning rod, and is used to limit the end of the locking member from escaping from the limiting ring groove of the positioning rod.

10. The self-locking structure of the quick-install cover according to claim 9, characterized in that: The circumferential surface of the self-locking member is provided with a paddle, and the shaft portion of the seat ring is provided with a movable opening for the paddle to movably cooperate with.

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