Locking structure for wall-hung toilet

Abstract

A wall hung toilet mounting device has a body, a driving gear, a driven gear and a movable locking member e.g. pivoting nut 4. The gears are rotatably fitted within the body and engaged with each othe

Description

TECHNICAL FIELD [0001 ] The present invention relates to the technical field of wall-hung toilet installation, and more particularly to a locking structure for a wall-hung toilet. BACKGROUND OF THE INVENTION

[0002] Existing wall-hung toilets are generally installed on a wall or wall-mounted bracket by means of a locking device. The locking device usually comprises a driving gear and a driven gear that are engaged with each other, and a threaded hole is provided on an axis of the driven gear.

[0003] Taking the installation of a ceramic body of a wall-hung toilet on a wall as an example, the installation process comprises the steps of installing the locking device at a rear side of the ceramic body, aligning the threaded hole of the driven gear with a pre-installed threaded shaft on the wall, inserting the ceramic body onto the threaded shaft by using a tool, and then rotating the driving gear such that engagement between the driving gear and the driven gear realizes driven movement of the driven gear to move axially towards the wall, so that through cooperative engagement between the locking device and the wall, the rear end of the ceramic body is locked, and hence the ceramic body is fixed onto the wall.

[0004] However, a drawback of the existing locking device is that the driven gear needs to be rotated so as to move axially and gradually from one end of the threaded shaft towards an installation surface (i.e., the wall or wall-mounted bracket). Since a length of the threaded shaft reserved on the installation surface varies in different scenarios, when the reserved length of the threaded shaft is relatively long, workers need more time for screwing and locking operations. Additionally, extra tools or helpers are required to support and fix the ceramic body during the process, resulting in high installation difficulty and labor costs. BRIEF SUMMARY OF THE INVENTION

[0005] The purpose of the present invention is to provide a locking structure for a wall-hung toilet, which solves the problems in the prior art, achieves quick installation of wall-hung toilets, and reduces installation difficulty and labor costs.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A locking structure for a wall-hung toilet, comprising a locking device body, a driving gear, a driven gear, and a movable locking member; the driving gear and the driven gear are rotatably fitted within the locking device body and engaged with each other; surfaces of the locking device body are provided with a first through-hole and a second through-hole corresponding to the driving gear and the driven gear respectively; a first channel is provided through two end surfaces of the driven gear, and the movable locking member is movably fitted in the first channel; the movable locking member comprises a second channel and a third channel through two end surfaces of the movable locking member; the second channel and the third channel intersect with each other; both the second channel and the third channel are configured to be capable of being penetrated by a threaded shaft pre-installed to a wall, and both the second channel and the third channel are positioned opposite to the second through-hole; an inner wall of one end of the second channel proximal to the second through-hole is provided with a plurality of threads, which do not extend into or other trespass any part of the third channel.

[0008] One side of the first channel is provided with a recess to accommodate the movable locking member when the movable locking member oscillates.

[0009] Preferably, said one side of the first channel where the recess is disposed correspond to a same side of the inner wall of said one end of the second channel proximal to the second through-hole where the threads are provided.

[0010] A first embodiment according to which the movable locking member is fitted into the driven gear is as follows: [0011 ] The movable locking member is pivotally connected to an inner wall of the first channel; two opposite sides of the movable locking member are provided with supporting shafts respectively to support oscillation of the movable locking member; the supporting shafts are rotatably fitted with the inner wall of the first channel; a central axis of the supporting shaft is perpendicular to a central axis of the second channel and a central axis of the third channel.

[0012] Preferably, the central axis of the second channel, the central axis of the third channel, and the central axis of the supporting shaft intersect at one same point.

[0013] A second embodiment according to which the movable locking member is fitted into the driven gear is as follows:

[0014] An inner wall of the first channel at one end of the first channel distal from another end from which the threaded shaft is inserted during installation is provided with two first limiting shafts located at opposite ends of a diameter of the first channel respectively at said one end of the first channel; a circumferential surface of the movable locking member is provided with first grooves corresponding to the two first limiting shafts; one end of each of the first grooves opens at an end surface of one end of the movable locking member corresponding to said one end of the first channel at which the two first limiting shafts are provided, so that each of the two first limiting shafts is allowed to enter a respective one of the first grooves; another end of each of the first grooves is provided with a guide slope.

[0015] Preferably, a first limiting rib is also disposed at said one end of each of the first grooves opening at the end surface of said one end of the movable locking member corresponding to said one end of the first channel at which the two first limiting shafts are provided; a space is formed between the first limiting rib and a side wall of each of the first grooves, so that each of the first limiting shafts is allowed to move in and out of the respective one of the first grooves.

[0016] Preferably, the inner wall of the first channel at said one end of the first channel distal from said another end from which the threaded shaft is inserted during installation is also provided with a second limiting shaft; the circumferential surface of the movable locking member is also provided with a second groove corresponding to the second limiting shaft; a second limiting rib is also disposed at one end of the second groove opening at an end surface of one end of the movable locking member corresponding to said one end of the first channel at which the second limiting shaft is provided; a space is formed between the second limiting rib and a side wall of the second groove, so that the second limiting shaft is allowed to move in and out of the second groove; the second limiting shaft moves in the second groove analogously and synchronously with the two first limiting shafts moving in the first grooves.

[0017] Preferably, the inner wall of the first channel at said another end of the first channel from which the threaded shaft is inserted during installation is provided with an arc-shaped groove, and the circumferential surface of one end of the movable locking member opposite to another thereof provided with the two first limiting shafts is provided with an anti-rotation block that movably fits in the arc-shaped groove.

[0018] The locking device body comprises a cover and a housing detachably connected with each other; the first through-hole and the second through-hole are formed on the cover and housing respectively; an upper surface of the housing is recessed to form a first chamber and a second chamber that are in communication with each other; the second through-hole is in communication with the second chamber; the driving gear and the driven gear are rotatably fitted in the first chamber and the second chamber respectively; the cover covers the upper surface of the housing.

[0019] The driving gear is provided with a slot facing towards the first through-hole.

[0020] The locking structure further comprises an adjustment barrel; a sleeve that extends axially from a perimeter of the second through-hole in a direction away from the locking device body is provided; the adjustment barrel passes through the sleeve and is threadedly connected to the sleeve.

[0021] Preferably, one end of the adjustment barrel distal from the locking device body is provided with a limiting ring protruding radially around a circumference of the adjustment barrel.

[0022] According to the above technical solutions, the present invention has the following technical effects:

[0023] The present invention provides a movable locking member that can oscillate inside the driven gear, the movable locking member having a second channel and a third channel for the threaded shaft to pass through, and the inner wall of the second channel is partially provided with threads. When the threaded shaft passes through the second through-hole of the locking device body and enters the movable locking member, the threaded shaft can push the movable locking member to oscillate away from an original position so that the third channel becomes coaxial with the threaded shaft, allowing the threaded shaft to quickly pass through the movable locking member, so that the ceramic body fixed to the locking structure of the present invention can be rapidly moved close to an installation surface. During this process of moving the ceramic body close to the installation surface, it is not necessary to use a tool to rotate the driving gear. Once the ceramic body is moved to a desired position, the movable locking member oscillate to return to its original position where the second channel becomes coaxial with the threaded shaft, thus the threads engage with the threaded shaft, and hence the locking structure fixes a position of the movable locking member relative to the threaded shaft. According to the present invention, during installation of the ceramic body, it is only necessary to roughly measure a length of the threaded shaft protruding from the installation surface, and then the ceramic body can be directly mounted until it abuts the installation surface. Subsequently, a tool is inserted through the first through-hole to rotate the driving gear to achieve locking. Additionally, after the ceramic body abuts the installation surface, fixation of the position of the movable locking member relative to the threaded shaft achieved by the locking structure allows the ceramic body to be directly hung on the threaded shaft without the need of any extra support, enabling a worker to perform the locking operation at ease, thereby reducing installation difficulty and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a perspective view of the first embodiment of the present invention.

[0025] FIG. 2 is an exploded view of the first embodiment.

[0026] FIG. 3 is a sectional view of the first embodiment.

[0027] FIG. 4 is a sectional view of the movable locking member in the first embodiment.

[0028] FIG. 5 is a first schematic diagram illustrating the working principle of the first embodiment.

[0029] FIG. 6 is a second schematic diagram illustrating the working principle of the first embodiment.

[0030] FIG. 7 is a first schematic diagram illustrating installation of the present invention according to the first embodiment.

[0031] FIG. 8 is a second schematic diagram illustrating installation of the present invention according to the first embodiment.

[0032] FIG. 9 is a perspective view of the second embodiment.

[0033] FIG. 10 is an exploded view of the second embodiment.

[0034] FIG. 11 is a sectional view of the second embodiment.

[0035] FIG. 12 is an exploded view of the driven gear and the movable locking member in the second embodiment.

[0036] FIG. 13 is a first schematic diagram showing connection between the driven gear and the movable locking member in the second embodiment.

[0037] FIG. 14 is a second schematic diagram showing connection between the driven gear and the movable locking member in the second embodiment.

[0038] FIG. 15 is a first schematic diagram of the installation process of the second embodiment.

[0039] FIG. 16 is a second schematic diagram of the installation process of the second embodiment.

[0040] FIG. 17 is a schematic diagram of an installed state of the present invention according to the second embodiment.

[0041] FIG. 18 is a first schematic diagram showing the uninstallation process of the second embodiment.

[0042] FIG. 19 is a second schematic diagram showing the uninstallation process of the second embodiment.

[0043] FIG. 20 is a third schematic diagram showing the uninstallation process of the second embodiment.

[0044] FIG. 21 is a fourth schematic diagram showing the uninstallation process of the second embodiment.

[0045] Reference Numerals:

[0046] 1 - Locking device body

[0047] 11 - Cover

[0048] 111 - First through-hole

[0049] 12-Housing

[0050] 121 - Second through-hole [0051 ] 122 - First chamber

[0052] 123 - Second chamber

[0053] 124-Sleeve

[0054] 2 - Driving gear

[0055] 21 - Slot

[0056] 3 - Driven gear

[0057] 31 - First channel

[0058] 311 - Recess

[0059] 32, 32' - First limiting shaft

[0060] 33 - Second limiting shaft [0061 ] 34 - Arc-shaped groove

[0062] 4 - Movable locking member

[0063] 41 - Second channel

[0064] 411 - Thread

[0065] 42 - Third channel

[0066] 43 - Supporting shaft

[0067] 44 - First groove

[0068] 441 - Guide slope

[0069] 442 - First limiting rib

[0070] 45 - Second groove

[0071] 451 - Second limiting rib

[0072] 46 - Anti-rotation block

[0073] 5 - Adjustment barrel

[0074] 51 - Limiting ring

[0075] a - Threaded shaft DETAILED DESCRIPTION OF THE INVENTION

[0076] In order to further explain the technical solutions of the present invention, the following specific embodiments of the present invention are described in detail.

[0077] Referring to FIGs. 1 to 21, the present invention discloses a locking structure for a wall-hung toilet, comprising a locking device body 1, a driving gear 2, a driven gear 3, and a movable locking member 4.

[0078] The driving gear 2 and the driven gear 3 are rotatably fitted within the locking device body 1 and engaged with each other to realize motion transmission from the driving gear 2 to the driven gear 3. Surfaces of the locking device body 1 are provided with a first through-hole 111 and a second through-hole 121 corresponding to the driving gear 2 and the driven gear 3 respectively.

[0079] A first channel 31 is provided through two end surfaces of the driven gear 3, and the movable locking member 4 is movably fitted in the first channel 31.

[0080] The movable locking member 4 comprises a second channel 41 and a third channel 42 (see the dashed boxes in FIG. 3 or FIG. 11) through two end surfaces of the movable locking member 4; the second channel 41 and the third channel 42 intersect with each other. Both the second channel 41 and the third channel 42 are capable to be penetrated by a threaded shaft a pre-installed to a wall, and both the second channel 41 and the third channel 42 are positioned opposite to the second through-hole 121. An inner wall of one end of the second channel 41 proximal to the second through-hole 121 is provided with a plurality of threads 411, which do not extend into or other trespass any part of the third channel 42. When constructing the second channel 41, characteristics of the threads 411 such as dimension and shape are designed to match the threaded shaft a, but any part of the threads 411 that has extended into or other trespassed any part of the third channel 42 will be eventually removed, such that the third channel 42 will not contain any threads 411.

[0081] According to the above arrangements, the present invention provides a movable locking member 4 that can oscillate inside the driven gear 3, the movable locking member 4 having a second channel 41 and a third channel 42 for the threaded shaft a to pass through, and the inner wall of the second channel 41 is partially provided with threads 411. When the threaded shaft a passes through the second through-hole 121 of the locking device body 1 and enters the movable locking member 4, the threaded shaft a can push the movable locking member 4 to oscillate away from an original position so that the third channel 42 becomes coaxial with the threaded shaft a, allowing the threaded shaft a to quickly pass through the movable locking member 4, so that the ceramic body fixed to the locking structure of the present invention can be rapidly moved close to an installation surface (i.e., a wall or a wall-mounted bracket). During this process of moving the ceramic body close to the installation surface, it is not necessary to use a tool to rotate the driving gear 2. Once the ceramic body is moved to a desired position, the movable locking member 4 oscillate to return to its original position where the second channel 41 becomes coaxial with the threaded shaft a, thus the threads 411 engage with the threaded shaft a, and hence the locking structure fixes a position of the movable locking member 4 relative to the threaded shaft a. According to the present invention, during installation of the ceramic body, it is only necessary to roughly measure a length of the threaded shaft a protruding from the installation surface, and then the ceramic body can be directly mounted until it abuts the installation surface. Subsequently, a tool is inserted through the first through-hole 111 to rotate the driving gear 2 to achieve locking. Additionally, after the ceramic body abuts the installation surface, fixation of the position of the movable locking member 4 relative to the threaded shaft a achieved by the locking structure allows the ceramic body to be directly hung on the threaded shaft a without the need of any extra support, enabling a worker to perform the locking operation at ease, thereby reducing installation difficulty and labor costs.

[0082] A first embodiment of the present invention is shown with reference to FIGs. 1-8.

[0083] One side of the first channel 31 is provided with a recess 311 to accommodate the movable locking member 4 when the movable locking member 4 oscillates, and to ensure that after the threaded shaft a passes through the movable locking member 4, the movable locking member 4 can only swing towards a direction where the recess 311 is located. Said one side of the first channel 31 where the recess 311 is disposed correspond to a same side of the inner wall of said one end of the second channel 41 proximal to the second through-hole 121 where the threads 411 are provided. During installation of the ceramic body, the driving gear 2 can be rotated in advance to rotate the driven gear 3 such that the recess 311 is rotated to the top as shown in FIGs. 2 and 3, so that when the ceramic body is mounted onto the threaded shaft a, the movable locking member 4 oscillates up and down. Once the ceramic body is moved to the desired position, the movable locking member 4 can reset by its own gravity.

[0084] The movable locking member 4 is pivotally connected to an inner wall of the first channel 31; two opposite sides of the movable locking member 4 are provided with supporting shafts 43 respectively to support oscillation of the movable locking member 4; the supporting shafts 43 are rotatably fitted with the inner wall of the first channel 31. A central axis of the supporting shaft 43 is perpendicular to a central axis of the second channel 41 and a central axis of the third channel 42.

[0085] Further, the central axis of the second channel 41, the central axis of the third channel 42, and the central axis of the supporting shaft 43 intersect at one same point.

[0086] The locking device body 1 comprises a cover 11 and a housing 12 in detachable connection. The first through-hole 111 and the second through-hole 121 are formed on the cover 11 and housing 12 respectively. An upper surface of the housing 12 is recessed to form a first chamber 122 and a second chamber 123 that are in communication with each other. The second through-hole 121 is in communication with the second chamber 123. The driving gear 2 and the driven gear 3 are rotatably fitted in the first chamber 122 and the second chamber 123 respectively. The cover 11 covers the upper surface of the housing 12.

[0087] The driving gear 2 is provided with a slot 21 facing towards the first through-hole 111, the slot 21 being configured in a shape (for example, a hexagonal shape) that matches a tool (for example, a hex wrench) configured to rotate the driving gear.

[0088] The present invention further comprises an adjustment barrel 5; a sleeve 124 that extends axially from a perimeter of the second through-hole 121 in a direction away from the locking device body 1 is provided; the adjustment barrel 5 passes through the sleeve 124 and is threadedly connected to the sleeve 124.

[0089] Further, one end of the adjustment barrel 5 distal from the locking device body 1 is provided with a limiting ring 51 protruding radially around a circumference of the adjustment barrel 5. By using different adjustment barrels 5 with limiting rings 51 of different thicknesses, and fine tuning a fitting depth of the adjustment barrel 5 into the locking device body 1, ceramic bodies of different thicknesses can be locked.

[0090] The working principle of the first embodiment is illustrated in FIGs. 5-8: [0091 ] 1) The movable locking member 4 is fitted inside the driven gear 3 and being capable to oscillate with respect to the driven gear 3 via the supporting shafts 43 on two sides of movable locking member 4 to support the oscillation.

[0092] 2) Before installing the locking device body 1 onto the ceramic body, it is optimal to use a tool to rotate the driving gear 2 to rotate the driven gear 3 which in turns drives the movable locking member 4 therein to rotate until the supporting shafts 43 of the movable locking member 4 are positioned horizontally and the threads 411 are positioned on an upper side (see FIG. 4) to facilitate fixation of position of the threaded shaft a relative to the movable locking member 4 when the movable locking member 4 subsequently resets to the original position by its own gravity.

[0093] 3) During installation of the ceramic body, the locking device body 1 is first mounted to a rear end of the ceramic body. When the threaded shaft a pre-installed in the installation surface (wall or wall-mounted bracket) passes through the second through-hole 121 of the locking device body 1 and enters the movable locking member 4, the threaded shaft a pushes the movable locking member 4 to oscillate, so that the third channel 42 becomes coaxial with the threaded shaft a, allowing the threaded shaft a to quickly pass through the movable locking member 4, enabling quick approach of the ceramic body to the installation surface, without any need to rotate the driving gear 2 with a tool.

[0094] 4) After the ceramic body is moved to the desired position, the movable locking member 4 resets by its own gravity, so that the second channel 41 becomes coaxial with the threaded shaft a, the threads 411 engage with the threaded shaft a, and hence the locking structure fixes a position of the movable locking member 4 relative to the threaded shaft a, and so the ceramic body can be directly hung on the threaded shaft a and will not move axially on the threaded shaft a without any help of extra support. A worker can then perform the locking operation with ease, thus reducing installation difficulty and labor costs.

[0095] A second embodiment of the present invention is shown with reference to FIGs. 9-21.

[0096] The main difference between the second embodiment and the first embodiment lies in the manner of fitting the movable locking member 4 into the driven gear 3. All other structural features not specifically mentioned below are those that can be taken from the first embodiment or any alternatives that achieve the same technical effects.

[0097] One side of the first channel 31 is provided with a recess 311 to accommodate the movable locking member 4 when the movable locking member 4 oscillates, and to ensure that after the threaded shaft a passes through the movable locking member 4, the movable locking member 4 can only swing towards a direction where the recess 311 is located.

[0098] The inner wall of the first channel 31 at one end of the first channel 31 distal from another end from which the threaded shaft a is inserted during installation is provided with two first limiting shafts 32, 32' located at opposite ends of a diameter of the first channel 31 respectively at said one end of the first channel 31. A circumferential surface of the movable locking member 4 is provided with first grooves 44 corresponding to the two first limiting shafts 32, 32’. One end of each of the first grooves 44 opens at an end surface of one end of the movable locking member 4 corresponding to said one end of the first channel 31 at which the two first limiting shafts 32, 32’ are provided, so that each of the two first limiting shafts 32, 32’ is allowed to enter a respective first groove 44. Another end of each of the first grooves 44 is provided with a guide slope 441. Thus, regardless of the position or state of the movable locking member 4 in the locking device body 1 during installation, no adjustment is needed during installation; the threaded shaft a can be directly inserted, and the guide slope 441 automatically adjusts the movable locking member 4 to an installation position.

[0099] FIGs. 13 and 14 illustrate the above described structure in detail:

[00100] 1) After insertion of the threaded shaft a, thrusting force generated by the contact between the threads 411 and the threaded shaft a causes axial movement of the movable locking member 4 relative to the driven gear 3; accordingly, the movable locking member 4 moves axially within the first channel 31 until each of the first limiting shafts 32, 32’ abuts against a proximal end of the guide slope 441 of a respective one of the first grooves 44.

[00101] 2) At this time, since the driving gear 2 is not yet rotated, the driven gear 3 (i.e., the first channel 31) is relatively fixed. Continued abutment of each of the first limiting shafts 32, 32’ with the guide slope 441 of the respective one of the first grooves 44 during continued thrusting of the threaded shaft a in the movable locking member 4 causes the movable locking member 4 to rotate, until each of the first limiting shafts 32, 32’ abuts a side wall of the respective one of the first grooves 44 connected to a distal end (opposite the proximal end) of the guide slope 441 thereof as shown in FIG. 14. No further rotation of the movable locking member 4 will be caused after that, and hence positioning of the movable locking member 4 and the two first limiting shafts 32, 32’ is relatively fixed.

[00102] 3) As the threaded shaft a continues to be thrusted in, the movable locking member 4 will oscillate about the two first limiting shafts 32, 32’, performing the same action and function as in the first embodiment; i.e., during continued insertion of the threaded shaft a, the third channel 42 becomes coaxial with the threaded shaft a for rapid insertion of the threaded shaft a.

[00103] Further, a first limiting rib 442 is also disposed at said one end of each of the first grooves 44 opening at the end surface of said one end of the movable locking member 4 corresponding to said one end of the first channel 31 at which the two first limiting shafts 32, 32’ are provided; a space is formed between the first limiting rib 442 and a side wall of each of the first grooves 44 connected to the proximal end of the guide slope 441 thereof, so that a respective one of the first limiting shafts 32, 32’ can move in and out. Thus, when tightening the driving gear 2, each of the first limiting shafts 32, 32’ abuts against the side wall of the respective one of the first grooves 44 connected to the proximal end of the guide slope 441 to drive the movable locking member 4 to rotate, as shown in FIG. 16. When loosening the driving gear 2, each of the first limiting shafts 32, 32’ abuts the side wall of the respective one of the first grooves 44 connected to the distal end of the guide slope 441 to drive the movable locking member 4 to rotate in an opposite direction, as shown in FIG. 19.

[00104] Additionally, the inner wall of the first channel 31 at said one end of the first channel 31 distal from said another end from which the threaded shaft a is inserted during installation is also provided with a second limiting shaft 33. The circumferential surface of the movable locking member 4 is also provided with a second groove 45 corresponding to the second limiting shaft 33. A second limiting rib 451 is also disposed at one end of the second groove 45 opening at an end surface of one end of the movable locking member 4 corresponding to said one end of the first channel 31 at which the second limiting shaft 33 is provided; a space is formed between the second limiting rib 451 and a side wall of the second groove 45, so that the second limiting shaft 33 can move in and out. The second limiting shaft 33 moves in the second groove 45 analogously and synchronously with the two first limiting shafts 32, 32’ moving in the first grooves 44. Thus, when the threaded shaft a is withdrawn, the second limiting shaft 33 abuts an inner wall of the second limiting rib 451, and the movable locking member 4 oscillates about the second limiting shaft 33 (see FIG. 21), so that during withdrawal of the threaded shaft a from the movable locking member 4, the third channel 42 becomes coaxial with the threaded shaft a, thereby facilitating rapid withdrawal.

[00105] The inner wall of the first channel 31 at said another end of the first channel 31 from which the threaded shaft a is inserted during installation is provided with an arc-shaped groove 34, and the circumferential surface of one end of the movable locking member 4 opposite to another thereof provided with the two first limiting shafts 32 is provided with an anti-rotation block 46 that movably fits in the arc-shaped groove 34. Cooperation of the anti-rotation block 46 and the arc-shaped groove 34 can limit a rotation angle of the movable locking member 4 with respect to the driven gear 3, so that operation of the movable locking member 4 is more precise.

[00106] Installation process according to the second embodiment (FIGs. 15-17):

[00107] When the driving gear 2 is rotated in the first direction (e.g. a clockwise direction), the driving gear 2 drives the driven gear 3 to rotate, thereby driving the movable locking member 4 to rotate and thus the movable locking member 4 on the threaded shaft a. Specifically, each of the first limiting shafts 32, 32’ of the driven gear 3 abuts the side wall of the respective one of the first grooves 44 connected to the proximal end of the guide slope 441 thereof, so as to drive the movable locking member 4 to rotate. Rotation of the movable locking member 4 causes the threads 411 to engage with the threads of the threaded shaft a, thus screwing and locking the movable locking member 4 to the threaded shaft a.

[00108] Uninstallation process according to the second embodiment (FIGs. 18-21):

[00109] When the driving gear 2 is rotated in an opposite second direction (e.g. an anti-clockwise direction), it drives the driven gear 3 to rotate, thereby driving the movable locking member 4 to rotate to unlock the movable locking member 4 from the threaded shaft a. Specifically, each of the first limiting shafts 32, 32’ of the driven gear 3 abuts against the side wall of the respective one of the first grooves 44 connected to the distal end of the guide slope 441 thereof, thereby driving the movable locking member 4 to rotate. Under the unthreading action of the threads of the threaded shaft a, the movable locking member 4 rotates and being withdrawn axially. Once the second limiting shaft 33 abuts the inner wall of the second limiting rib 451, the movable locking member 4 then oscillates (for example, upwardly, as shown in FIG. 21) about the second limiting shaft 33, so that the third channel 42 becomes coaxial with the threaded shaft a, and hence the threaded shaft a can be quickly withdrawn from the movable locking member 4, achieving quick uninstallation.

[00110] The above embodiments and drawings are not intended to limit the shape and forms of the product of the present invention. Any non-inventive modifications or alterations made by those skilled in the art should be regarded as falling within the scope of the present invention.

Claims

1. A locking structure for a wall-hung toilet, comprising:a locking device body, a driving gear, a driven gear, and a movable locking member;the driving gear and the driven gear are rotatably fitted within the locking device body and engaged with each other; surfaces of the locking device body are provided with a first through-hole and a second through-hole corresponding to the driving gear and the driven gear respectively;a first channel is provided through two end surfaces of the driven gear, and the movable locking member is movably fitted in the first channel;the movable locking member comprises a second channel and a third channel through two end surfaces of the movable locking member; the second channel and the third channel intersect with each other; both the second channel and the third channel are configured to be capable of being penetrated by a threaded shaft pre-installed to a wall, and both the second channel and the third channel are positioned opposite to the second through-hole; an inner wall of one end of the second channel proximal to the second through-hole is provided with a plurality of threads, which do not extend into or other trespass any part of the third channel.

2. The locking structure of claim 1, wherein one side of the first channel is provided with a recess to accommodate the movable locking member when the movable locking member oscillates; said one side of the first channel where the recess is disposed correspond to a same side of the inner wall of said one end of the second channel proximal to the second through-hole where the threads are provided.

3. The locking structure of claim 1 or 2, wherein the movable locking member is pivotally connected to an inner wall of the first channel; two opposite sides of the movable locking member are provided with supporting shafts respectively to support oscillation of the movable locking member; the supporting shafts are rotatably fitted with the inner wall of the first channel; a central axis of the supporting shaft is perpendicular to a central axis of the second channel and a central axis of the third channel.

4. The locking structure of claim 3, wherein the central axis of the second channel, the central axis of the third channel, and the central axis of the supporting shaft intersect at one same point.

5. The locking structure of claim 1 or 2, wherein an inner wall of the first channel at one end of the first channel distal from another end from which the threaded shaft is inserted during installation is provided with two first limiting shafts located at opposite ends of a diameter of the first channel respectively at said one end of the first channel; a circumferential surface of the movable locking member is provided with first grooves corresponding to the two first limiting shafts; one end of each of the first grooves opens at an end surface of one end of the movable locking member corresponding to said one end of the first channel at which the two first limiting shafts are provided, so that each of the two first limiting shafts is allowed to enter a respective one of the first grooves; another end of each of the first grooves is provided with a guide slope.

6. The locking structure of claim 5, wherein a first limiting rib is also disposed at said one end of each of the first grooves opening at the end surface of said one end of the movable locking member corresponding to said one end of the first channel at which the two first limiting shafts are provided; a space isformed between the first limiting rib and a side wall of each of the first grooves, so that each of the first limiting shafts is allowed to move in and out of the respective one of the first grooves.

7. The locking structure of claim 5, wherein the inner wall of the first channel at said one end of the first channel distal from said another end from which the threaded shaft is inserted during installation is also provided with a second limiting shaft; the circumferential surface of the movable locking member is also provided with a second groove corresponding to the second limiting shaft; a second limiting rib is also disposed at one end of the second groove opening at an end surface of one end of the movable locking member corresponding to said one end of the first channel at which the second limiting shaft is provided; a space is formed between the second limiting rib and a side wall of the second groove, so that the second limiting shaft is allowed to move in and out of the second groove; the second limiting shaft moves in the second groove analogously and synchronously with the two first limiting shafts moving in the first grooves.

8. The locking structure of claim 5, wherein the inner wall of the first channel at said another end of the first channel from which the threaded shaft is inserted during installation is provided with an arc-shaped groove, and the circumferential surface of one end of the movable locking member opposite to another thereof provided with the two first limiting shafts is provided with an anti-rotation block that movably fits in the arc-shaped groove.

9. The locking structure of claim 1, wherein the locking device body comprises a cover and a housing detachably connected with each other; the first through-hole and the second through-hole are formed on the cover andhousing respectively; an upper surface of the housing is recessed to form a first chamber and a second chamber that are in communication with each other; the second through-hole is in communication with the second chamber; the driving gear and the driven gear are rotatably fitted in the first chamber and the second chamber respectively; the cover covers the upper surface of the housing.

10. The locking structure of claim 1, wherein the driving gear is provided with a slot facing towards the first through-hole.

11. The locking structure of claim 1, further compriseing an adjustment barrel; a sleeve that extends axially from a perimeter of the second through-hole in a direction away from the locking device body is provided; the adjustment barrel passes through the sleeve and is threadedly connected to the sleeve; one end of the adjustment barrel distal from the locking device body is provided with a limiting ring protruding radially around a circumference of the adjustment barrel.

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