Toilet cover plate base lifting device

Abstract

The utility model provides a toilet bowl cover plate base lifting device which comprises a toilet bowl body and a base arranged on the toilet bowl body and used for being connected with a cover plate, and further comprises a lifting driving assembly arranged between the toilet bowl body and the base so as to drive the base to ascend and descend relative to the toilet bowl body, and a connecting rod guiding assembly arranged between the toilet bowl body and the base and used for guiding the base to ascend and descend relative to the toilet bowl body. The connecting rod guiding assembly is arranged between the closestool body and the base so as to guide the base to ascend and descend. The base is lifted through the arrangement of the lifting driving assembly, so that the base and the upper end face of the closestool body can be separated, the problem that a fitting part cannot be cleaned due to traditional screw fixation is solved, and the fitting part is convenient to clean; the connecting rod guide assembly ensures that the base swings forwards to a certain degree in the lifting process, and the base is prevented from being blocked by the wall.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, and in particular to a toilet seat base lifting device. Background Technology

[0002] Current smart toilets are installed on ceramic toilets using screws, causing the smart seat to fit snugly against the top surface of the toilet. However, this fixed installation prevents the area from being cleaned during washing, making it prone to trapping dirt and bacteria over time. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a toilet seat base lifting device.

[0004] This utility model is achieved by the following method: a toilet seat base lifting device, including a toilet body and a base disposed on the toilet body for connecting the seat, and further including:

[0005] A linkage guide assembly is disposed between the toilet body and the base to guide the raising and lowering of the base.

[0006] A lifting drive assembly is disposed between the toilet body and the base, and / or the lifting drive assembly is disposed between the toilet body and the connecting rod guide assembly to drive the base to lift relative to the toilet body.

[0007] Preferably, it also includes a limiting component, which is disposed between the toilet body and the base. The limiting component includes a first limiting component for limiting the base when it is raised or a second limiting component for limiting the base when it is lowered.

[0008] Preferably, the second limiting component includes a lifting blocking member and a limiting driving member. The lifting blocking member is disposed between the toilet body and the base, and the limiting driving member is convexly connected to the lifting blocking member. The limiting driving member drives the lifting blocking member to block the lifting of the base. Preferably, the limiting component further includes a housing, the lifting blocking member and the limiting driving member are installed in the housing, the housing is disposed on the base, and the toilet body is provided with a limiting boss; or, the housing is fixed in the toilet body, and the base is provided with a limiting boss; the lifting blocking member cooperates with the limiting boss to achieve limiting; the lifting blocking member is a limiting slider, the limiting driving member is a starting slider, the housing is provided with a first sliding groove and a second sliding groove, the limiting slider is disposed in the first sliding groove, the starting slider is disposed in the second sliding groove, the limiting slider is provided with a first mating surface, the starting slider is provided with a second mating surface that cooperates with the first mating surface, the starting slider is driven by an external force to move in the second sliding groove, and the second mating surface and the first mating surface drive each other to push the limiting slider to move away from the limiting boss and release the limiting.

[0009] Preferably, the first sliding groove is further provided with a first reset member connected to the limiting slider, for driving the limiting slider to reset; the housing is also provided with a limiting block protruding into the first sliding groove, and the limiting slider is provided with a matching limiting groove to prevent the limiting slider from coming out of the first sliding groove; the first mating surface and the second mating surface are inclined surfaces, and the moving directions of the limiting slider and the starting slider are perpendicular to each other.

[0010] Preferably, the first mating surface is formed by a first boss on the limiting slider, and the second mating surface is formed by a second boss on the starting slider; the second sliding groove is further provided with a second reset member connected to the starting slider for driving the starting slider to reset.

[0011] Preferably, the first limiting component is a spring pin, which is installed on the toilet body. The connecting rod guide component is provided with a limiting groove, and the spring pin abuts against the limiting groove after the base rises to the top.

[0012] Preferably, the linkage guide assembly includes a linkage and a push rod. One end of the linkage is hinged to the toilet body, and the other end of the linkage is hinged to the push rod. The top of the push rod is connected to the base. During the rotation of the linkage, the push rod is driven to move upward and forward.

[0013] Preferably, the linkage guide assembly further includes a guide bracket, one end of the linkage is hinged to the guide bracket, and the linkage guide assembly is provided in two sets. One set of the guide brackets of the linkage guide assembly is located on the inner side wall of the toilet body, and the other set of the guide brackets is located at the drain pipe fixing point inside the toilet body. Alternatively, both sets of the guide brackets are located at the drain pipe fixing point inside the toilet body. The lower end of the push rod of one set of the linkage guide assembly is provided with the lifting drive assembly.

[0014] Preferably, one of the base and the toilet body is provided with a limiting hole, and the other of the base and the toilet body is provided with a limiting post. The limiting post cooperates with the limiting hole for guidance. The limiting hole is elliptical, and the major axis of the limiting hole is parallel to the center line of the toilet body. During the descent of the base, the limiting post is guided into the limiting hole.

[0015] Preferably, it also includes a limiting guide hole, the push rod is slidably disposed in the limiting guide hole, and the limiting guide hole is fixedly disposed relative to the toilet body.

[0016] Preferably, the output end of the lifting drive assembly is provided with a roller, which abuts against the base or the connecting rod guide assembly; the roller can slide a certain distance on the base or the connecting rod guide assembly, and the lifting drive assembly is a piston cylinder, a cam assembly, a gear and rack assembly, a nut and screw assembly, or an elastic accumulator.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a toilet seat base lifting device, which, compared with the prior art, has at least the following technical effects: 1. The lifting drive component enables the base to be lifted, allowing the base to be separated from the upper surface of the toilet body, avoiding the problem of the contact area being difficult to clean due to traditional screw fixing, thus facilitating cleaning of the contact area; the connecting rod guide component ensures that the base swings forward to a certain extent during the lifting process, preventing the base from being blocked by the wall. 2. The setting of the limiting component can prevent the base from being accidentally lifted or lowered, improving the user experience. 3. The second limiting component consists of a lifting blocking component and a limiting drive component. The limiting drive component drives the lifting component to unlock or lock, thereby achieving its limiting function on the base and preventing the base from being accidentally lifted. 4. A limiting boss is set on the base or toilet body to cooperate with the lifting blocking component. The limiting boss abuts against the lifting blocking component, thus controlling the lifting of the base and preventing the base from being accidentally lifted during normal use. 5. The starting slider pushes against the first mating surface through the second mating surface, causing the slider displacement limiter to move accordingly, thus unlocking and locking the base, and ultimately limiting the base's rise. 6. The first limiting component is a spring pin. After the base rises, the spring pin abuts against the limiting groove to prevent the base from falling unexpectedly. Pressing the base firmly compresses the spring pin, causing it to retract, allowing the base to fall, making the base's lifting and lowering more precise and reliable. 7. The connecting rod and push rod of the linkage guide assembly work together to limit the base's lifting and lowering in the left and right directions. During the push rod's ascent, the connecting rod rotates around the hinge point, causing the push rod to move forward during the ascent, allowing the base to swing forward slightly during lifting and lowering, preventing the wall-mounted toilet base from being blocked by the wall. 8. Setting two sets of linkage guide assemblies provides a more stable guiding and limiting effect, distributing stress and improving structural strength. 9. The base and toilet body are equipped with limiting holes and limiting posts, which work together to assist in limiting the lifting direction of the base. The limiting holes are elliptical to limit the left and right directions, allowing the base to move forward and backward within a certain range, while ensuring that the toilet is fixed, reliable, and stable under normal use. 10. The output end of the lifting drive component is equipped with rollers. The rollers contact the connecting rod guide component or the base. The rollers change sliding friction into rolling friction, reducing wear, extending service life, and ensuring smooth lifting. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a toilet seat base lifting device according to this utility model.

[0019] Figure 2 This is a cross-sectional view of a toilet seat base lifting device in a general state according to Embodiment 1.

[0020] Figure 3This is a cross-sectional view of the toilet seat base lifting device in the lifting and cleaning state according to Embodiment 1.

[0021] Figure 4 This is a cross-sectional view of the connecting rod guide assembly in the normal state of a toilet seat base lifting device according to Embodiment 1.

[0022] Figure 5 This is a cross-sectional view of the connecting rod guide assembly in the lifting and cleaning state of a toilet seat base lifting device according to Embodiment 1.

[0023] Figure 6 This is a cross-sectional view of the second limiting component in the lifting and cleaning state of a toilet seat base lifting device according to Embodiment 1.

[0024] Figure 7 A is a cross-sectional view of the limiting slider in the limiting state in Embodiment 1.

[0025] Figure 7 View B is a cross-sectional view of the limiting slider in the first embodiment when it is in the released limiting state.

[0026] Figure 8 This is an exploded view of the limit component.

[0027] Figure 9 This is a cross-sectional schematic diagram of the limit component using a spring pin.

[0028] Figure 10 This is a schematic diagram of the normal state of a toilet seat base lifting device according to Embodiment 2.

[0029] Figure 11 This is a schematic diagram of the lifting and cleaning state of a toilet seat base lifting device according to Embodiment 2.

[0030] Figure 12 This is a schematic diagram of the normal state of a toilet seat base lifting device according to Embodiment 3.

[0031] Figure 13 This is a schematic diagram of the lifting and cleaning state of a toilet seat base lifting device according to Embodiment 3.

[0032] Figure 14 This is a schematic diagram of the linkage guide assembly in Embodiment 3.

[0033] Figure 15 This is a schematic diagram of the lifting drive assembly in Embodiment 3.

[0034] Explanation of reference numerals: 1. Toilet body; 11. Limiting post; 2. Base; 21. Limiting hole; 3. Lifting drive assembly; 31. Piston cylinder; 32. Piston rod; 33. Roller; 4. Linkage guide assembly; 41. Linkage rod; 42. Push rod; 421. Hinge; 43. Guide bracket; 431. Limiting guide hole; 5. Limiting assembly; 51. Lifting stop; 511. First boss; 52. Limiting drive component; 521. Second boss; 53. Housing; 54. First reset component; 55. Second reset component; 56. Limiting block; 6. Limiting boss; 7. Limiting groove. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] Please see Figures 1 to 9 A toilet seat base 2 lifting device includes a toilet body 1 and a base 2 disposed on the toilet body 1 for connecting the toilet seat, and further includes:

[0038] Linkage guide assembly 4, which is disposed between the toilet body 1 and the base 2 to guide the lifting and lowering of the base 2;

[0039] A lifting drive assembly 3 is disposed between the toilet body 1 and the base 2, and / or, the lifting drive assembly 3 is disposed between the toilet body 1 and the connecting rod guide assembly 4, to drive the base 2 to rise and fall relative to the toilet body 1.

[0040] The lifting drive component 3 is used to lift the base 2, making the base 2 separable from the upper surface of the toilet body 1. This avoids the problem of the contact area being difficult to clean due to traditional screw fixing, making it easier to clean the contact area. The connecting rod 41 guide component 4 ensures that the base 2 swings forward to a certain extent during the lifting process, preventing the base 2 from being blocked by the wall.

[0041] Please see Figures 6 to 9 Preferably, the toilet also includes a limiting component 5, which is disposed between the toilet body 1 and the base 2. The limiting component 5 includes a first limiting component for limiting the base when it is raised or a second limiting component for limiting the base when it is lowered. The limiting component 5 can prevent the base 2 from being accidentally raised or lowered, and can prevent the base 2 from falling and injuring the user when cleaning the contact surface, thereby improving the user experience.

[0042] Please see Figures 6 to 8Preferably, the second limiting component includes a lifting blocking member 51 and a limiting drive member 52. The lifting blocking member 51 is disposed between the toilet body 1 and the base 2. The limiting drive member 52 is pulsatorically connected to the lifting blocking member 51, and the limiting drive member 52 drives the lifting blocking member 51 to block the lifting of the base 2. The limiting component 5 consists of the lifting blocking member 51 and the limiting drive member 52 working together. The limiting drive member 52 drives the lifting component to unlock or lock, thereby achieving its limiting function on the base 2 and preventing accidental lifting when the rear of the smart toilet seat base 2 does not need to be cleaned, i.e., during normal user use.

[0043] Please see Figures 6 to 8 Preferably, the limiting component 5 further includes a housing 53, in which the lifting blocking member 51 and the limiting drive member 52 are installed. The housing 53 is disposed on the base 2, and the toilet body 1 is provided with a limiting boss 6; or, the housing 53 is fixed in the toilet body 1, and the base 2 is provided with a limiting boss 6; the lifting blocking member 51 cooperates with the limiting boss 6 to achieve limiting. By providing a limiting boss 6 on the base 2 or the toilet body 1 to cooperate with the lifting blocking member 51, the limiting boss 6 abuts against the lifting blocking member 51, which can lock the lifting of the base 2 and prevent the base 2 from being accidentally lifted. In use, it needs to be unlocked first before the base can be lifted by the lifting drive component such as a cylinder.

[0044] Please see Figures 6 to 8 Preferably, the lifting blocking component 51 is a limiting slider, the limiting driving component 52 is a starting slider, and the housing 53 is provided with a first sliding groove and a second sliding groove. The limiting slider is disposed in the first sliding groove, and the starting slider is disposed in the second sliding groove. The limiting slider has a first mating surface, and the starting slider has a second mating surface that mates with the first mating surface. The starting slider is driven by an external force to move in the second sliding groove. The second mating surface and the first mating surface drive the limiting slider to move away from the limiting boss 6 to release the limiting position. The starting slider pushes the first mating surface through the second mating surface. The displacement of the starting slider causes the limiting slider to move accordingly to release the mating with the limiting boss 6, realizing the unlocking and locking actions, thereby realizing the lifting limit of the base 2. The starting slider can be connected to a pull rope, which drives the starting slider to move in the second sliding groove.

[0045] Please see Figures 6 to 8Preferably, the first sliding groove is further provided with a first reset member 54 connected to the limiting slider, for driving the limiting slider to reset; the housing 53 is also equipped with a limiting block 56 protruding into the first sliding groove, and the limiting slider is provided with a matching limiting groove to prevent the limiting slider from coming out of the first sliding groove; the first mating surface and the second mating surface are inclined surfaces, and the moving directions of the limiting slider and the starting slider are perpendicular to each other. The first mating surface is formed by a first boss 511 provided on the limiting slider, and the second mating surface is formed by a second boss 521 provided on the starting slider; the second sliding groove is further provided with a second reset member 55 connected to the starting slider, for driving the starting slider to reset. The starting slider is driven by tension to move along the second sliding groove. Since the starting slider is inclined, the movement of the second mating surface will push against the first mating surface. The limiting slider is subjected to the force transmitted by the second mating surface, overcomes the force of the first reset member 54, and moves along the first sliding groove into the housing 53, thereby disengaging from the contact with the limiting boss 6, releasing the limiting, and the lifting drive assembly 3 can then drive the base 2 to rise. Once the force exerted by the pull cord on the starting slider is removed, the second reset component 55 drives the starting slider to reset, and the first reset component 54 drives the limiting slider to reset. The limiting slider can then protrude from the housing 53 again and contact the limiting boss 6 for limiting. The first reset component 54 and the second reset component 55 can be springs, rubber rings, etc., and are not limited to these.

[0046] Please see Figure 9 Preferably, the first limiting component 5 is a spring pin, which is installed on the toilet body 1. The connecting rod 41 guide component 4 is provided with a limiting groove 7. After the base 2 rises to the top, the spring pin abuts against the limiting groove. The limiting component 5 is set as a spring pin. After the base 2 rises, the spring pin abuts against the limiting groove 7 to prevent the base 2 from falling accidentally. Pressing the base 2 with force can squeeze the spring pin to retract it, and the base 2 can then fall, making the lifting and lowering of the base 2 more precise and reliable. The spring pin can also exist simultaneously with the lifting blocking component 51 and the limiting drive component 52. The lifting blocking component 51 and the limiting drive component 52 limit the rising of the base 2, and the spring pin limits the falling of the base 2.

[0047] Please see Figures 2 to 6Preferably, the connecting rod 41 guide assembly 4 includes a connecting rod 41 and a push rod 42. One end of the connecting rod 41 is hinged to the toilet body 1, and the other end of the connecting rod 41 is hinged to the push rod 42 via a hinge member 421. The top of the push rod 42 is connected to the base 2. The connecting rod 41 and the push rod 42 of the connecting rod 41 guide assembly 4 cooperate to limit the lifting and lowering of the base 2 in the left and right directions. During the lifting process of the push rod 42, the connecting rod 41 rotates around the hinge point of the hinge member 421, which in turn drives the push rod 42 to move forward during the lifting process, so that the base 2 swings forward a certain amount during the lifting and lowering, which can prevent the lifting and lowering of the toilet base 2 in the wall-mounted installation method from being blocked by the wall.

[0048] Please see Figure 3 Preferably, the piston rod 32 is provided with a roller 33, which is located in the guide groove of the toilet body. When the base rises, the roller 33 moves back and forth along the guide groove, following the back and forth movement of the toilet seat.

[0049] Please see Figure 1 Preferably, one of the base 2 and the toilet body 1 is provided with a limiting hole 21, and the other of the base 2 and the toilet body 1 is provided with a limiting post 11. The limiting post 11 cooperates with the limiting hole 21 for guidance. The limiting hole 21 is elliptical, and the major axis of the limiting hole 21 is parallel to the center line of the toilet body 1 (the center line is the axis of symmetry of the left and right sides of the toilet body 1). During the descent of the base 2, the limiting post 11 is inserted into the limiting hole 21. The limiting hole 21 and the limiting post 11 on the base 2 and the toilet body 1 cooperate to assist in limiting the lifting direction of the base 2. The limiting hole 21 is set to be elliptical to limit the left and right directions, allowing the base 2 to move forward and backward within a certain range. When the base 2 descends, it will sway left and right along the width direction of the toilet. Therefore, the limiting post 11 guides and limits its left and right movement. The end of the limiting post 11 has a conical surface for guidance. When the lid rises, the limiting post 11 disengages from the limiting hole 21.

[0050] Please see Figures 2 to 6 , Figure 9Preferably, the lifting drive assembly 3 can be a piston cylinder 31 or an elastic accumulator. The lifting drive assembly 3 is installed on the toilet body 1, and the base 2 has a corresponding abutment part; or the lifting drive assembly 3 is installed on the base 2, and the toilet body 1 has a corresponding abutment part. The piston cylinder 31 can move the piston rod 32 by injecting fluid, thereby pushing the base 2 to rise and fall. The piston cylinder 31 can be a pneumatic cylinder or a hydraulic cylinder. When it is a pneumatic cylinder, gas is injected into the cylinder's inner tank by an air pump to drive the piston rod 32 to move. When it is a hydraulic cylinder, municipal water is introduced into the hydraulic cylinder by a water pump or an elastic accumulator to drive the piston rod 32 to move. The elastic accumulator can be installed on the lid or the toilet. The elastic accumulator can also be directly installed between the base 2 and the toilet body 1, storing or releasing energy by pressing to achieve the lifting and falling of the base 2. The lifting drive assembly 3 is installed in an abutment manner, which facilitates a certain amount of back-and-forth swinging during the lifting and falling of the base 2, avoiding interference between the lifting drive assembly 3 and the connecting rod 41 guide assembly 4.

[0051] This embodiment has the following working principle:

[0052] When it is necessary to clean the mating surfaces of the base 2 and the toilet body 1, the button connected to the pull cord drives the start slider to move along the second sliding groove. The second mating surface pushes against the first mating surface to drive the limit slider to move along the first sliding groove and retract into the housing 53, releasing the limit from the limit boss 6. At the same time, the piston rod 32 of the lifting drive assembly 3 (piston cylinder 31 is fluid-driven, and the control of this fluid can be linked with the pull cord. After the pull cord is unlocked, the lifting drive assembly 3 can be controlled to rise and fall. The linkage method can be such as triggering a micro switch when the pull cord is in place) extends (when fixed on the base 2, the piston rod 32 pushes the toilet). When the toilet body 1 is fixed to the toilet body 1, the piston rod 32 pushes the base 2, lifting the base 2 so that the contact between the base 2 and the toilet body 1 can be cleaned. Due to the presence of the connecting rod 41 and the push rod 42, the base 2 will also move forward to a certain extent during the rising process, which can prevent the base 2 from being unable to be lifted due to the wall obstruction of the wall for wall-mounted or wall-mounted toilets. When descending, the lifting drive assembly 3 descends, and the base 2 descends under its own weight. Under the guidance of the connecting rod 41, the guide assembly 4, the limiting post 11, and the limiting hole 21, the base 2 returns to the initial position of contact with the toilet body 1. When the first limiting assembly is a spring pin, after the lifting drive assembly 3 drives the base 2 to rise to the position, the spring pin pops out and locks into the limiting groove 7, preventing the base 2 from descending. To lower the base 2, the spring pin can be pulled back by pulling the rope or by pressing the base 2 to push the spring pin back into the base 2.

[0053] Example 2

[0054] Please see Figures 10 to 11The difference between this embodiment and Embodiment 1 is that the connecting rod guide assembly 4 further includes a guide bracket 43. There are two sets of connecting rod guide assemblies 41. One guide bracket 43 is located on the inner wall of the toilet body 1, and the other guide bracket 43 is located at the drain pipe fixing point inside the toilet body 1. Each guide bracket 43 is equipped with a push rod 42 and a connecting rod 41. The lower end of the push rod 42 of one connecting rod guide assembly 4 is provided with a lifting drive assembly 3. The output end of the lifting drive assembly 3 is provided with a roller (located at the upper end of the piston rod when it is a piston cylinder). A guide groove is provided on the lower end face of the push rod of the connecting rod guide assembly that abuts against it, and the roller slides in the guide groove. Providing two sets of connecting rod guide assemblies 41 can achieve a more stable guiding and limiting effect, disperse the force, and improve structural strength. The lifting drive assembly 3 is a piston cylinder 31, which is fixed to the toilet body 1. The upper end of the piston rod 32 abuts against the lower end of the push rod 42. The piston rod 32 pushes out and pushes the push rod 42. The push rod 42 moves upward and is pulled forward by the connecting rod 41. The contact position between the piston rod 32 and the push rod 42 moves backward relative to the push rod 42. The roller 33 moves backward relative to the push rod 42 along the guide groove.

[0055] This embodiment has the following working principle:

[0056] When it is necessary to clean the mating surfaces of the base 2 and the toilet body 1, the button connected to the pull cord drives the start slider to move along the second sliding groove. The second mating surface pushes against the first mating surface to drive the limit slider to move along the first sliding groove and retract into the housing 53 to release the limit boss 6. The piston rod 32 of the lifting drive assembly 3 (piston cylinder 31 is fluid driven) extends out to push the connecting rod 41 and guide assembly 4, and then the push rod 42 lifts the base 2, so that the mating surfaces of the base 2 and the toilet body 1 can be cleaned. Due to the presence of the connecting rod 41 and the push rod 42, the push rod 42 will drive the base 2 to move forward in a certain range during the lifting process, which can avoid the situation where the base 2 cannot be lifted due to the wall obstruction of the wall for wall-mounted or wall-mounted toilets. Since the piston rod 32 is equipped with a roller 33, the roller 33 will move backward relative to the push rod 42 along the guide groove when the base rises, changing the sliding friction into rolling friction. When it descends, the lifting drive component 3 descends, and the base 2 descends under its own weight. Under the guidance of the connecting rod 41, the guide component 4, the limiting post 11, and the limiting hole 21, the base 2 returns to the initial position of fitting with the toilet body 1.

[0057] Example 3

[0058] Please see Figures 12 to 15The difference between this embodiment and Embodiment 1 is that it also includes a limiting guide hole 431. The push rod 42 is slidably disposed in the limiting guide hole 431, which is fixedly disposed relative to the toilet body. The connecting rod 41 guide assembly 4 also includes a guide bracket 43 fixed in the toilet body 1. The limiting guide hole 431 is provided on both sides of the guide bracket 43, and the connecting rod 41 is connected to all push rods 42 and the guide bracket 43. The lower end of each push rod 42 is provided with the lifting drive assembly 3. The connecting rod 41 and push rod 42 are respectively provided on both sides of the guide bracket 43. The push rods 42 on both sides are driven to rise by a lifting drive assembly 3, which can distribute the force and eliminate the risk of off-center load, and also improve the system redundancy. The guide hole has redundancy in the front and back direction of the toilet, leaving space for the front and back movement of the push rod 42.

[0059] Please see Figures 12 to 15 Preferably, the lifting drive assembly 3 includes a piston cylinder 31 and a roller 33 disposed on the piston rod 32 of the piston cylinder 31. The piston cylinder 31 is fixed to the toilet body 1, and the roller 33 abuts against the lower end of the push rod 42. The limiting guide hole 431 prevents the push rod 42 from being excessively lifted and makes the lid more stable after being lifted. The piston rod 32 of the piston cylinder 31 is provided with a roller 33, which contacts the lower end of the push rod 42. When the piston rod 32 of the piston cylinder 31 pushes out, it drives the push rod 42 to move upward. During the upward movement, it moves forward due to the limiting effect of the connecting rod 41. The roller 33 at the upper end of the piston rod 32 contacts the lower end face of the push rod 42. As the push rod 42 moves forward, the roller 33 rolls backward relative to the push rod 42, changing the sliding friction into rolling friction, thereby reducing friction, reducing wear, and extending service life.

[0060] This embodiment has the following working principle:

[0061] When it is necessary to clean the mating surfaces of the base 2 and the toilet body 1, the button connected to the pull cord drives the start slider to move along the second sliding groove. The second mating surface pushes against the first mating surface to drive the limit slider to move along the first sliding groove and retract into the housing 53 to release the limit boss 6. The piston rod 32 of the lifting drive assembly 3 (piston cylinder 31 is fluid driven) extends out to push the push rod 42 of the connecting rod guide assembly 4. The push rod 42 then lifts the base 2, which can clean the mating surfaces of the base 2 and the toilet body 1. Due to the presence of the connecting rod 41 and the push rod 42, the push rod 42 will drive the base 2 to move forward to a certain extent during the lifting process. This can prevent the base 2 from being unable to be lifted due to the wall obstruction of the wall for wall-mounted or wall-mounted toilets. The push rod 42 and the piston rod 32 of the piston cylinder 31 are in contact. The piston rod 32 can move backward relative to the push rod 42. The roller 33 contacts and changes the sliding friction between the push rod 42 and the piston rod 32 to rolling friction to reduce wear. When it descends, the lifting drive component 3 descends, the base 2 descends under its own weight, and the base 2 returns to the initial position of fitting with the toilet body 1 under the guidance of the connecting rod 41 and the guide component 4. The piston rod 32 will move forward relative to the push rod 42.

[0062] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0063] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0064] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0065] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A toilet seat base lifting device, comprising a toilet body and a base disposed on the toilet body for connecting the toilet seat, characterized in that, Also includes: A linkage guide assembly is disposed between the toilet body and the base to guide the raising and lowering of the base. A lifting drive assembly is disposed between the toilet body and the base, and / or the lifting drive assembly is disposed between the toilet body and the connecting rod guide assembly to drive the base to lift relative to the toilet body.

2. The toilet seat base lifting device according to claim 1, characterized in that: It also includes a limiting component, which is disposed between the toilet body and the base. The limiting component includes a first limiting component for limiting the base when it is raised or a second limiting component for limiting the base when it is lowered.

3. The toilet seat base lifting device according to claim 2, characterized in that: The second limiting assembly includes a lifting stop and a limiting drive. The lifting stop is disposed between the toilet body and the base, and the limiting drive is kinetically connected to the lifting stop. The limiting drive drives the lifting stop to block the rise of the base. The limiting assembly also includes a housing, in which the lifting stop and the limiting drive are installed. The housing is disposed on the base, and the toilet body has a limiting boss. Alternatively, the housing is fixed in the toilet body, and the base has a limiting boss. The limiting boss cooperates to achieve limiting; the lifting blocking component is a limiting slider, the limiting driving component is a starting slider, the housing is provided with a first sliding groove and a second sliding groove, the limiting slider is disposed in the first sliding groove, the starting slider is disposed in the second sliding groove, the limiting slider is provided with a first mating surface, the starting slider is provided with a second mating surface that mates with the first mating surface, the starting slider is driven by an external force to move in the second sliding groove, and the second mating surface and the first mating surface drive the limiting slider to move away from the limiting boss to release the limiting.

4. The toilet seat base lifting device according to claim 3, characterized in that: The first sliding groove is further provided with a first reset member connected to the limiting slider, which is used to drive the limiting slider to reset; the housing is also provided with a limiting block protruding into the first sliding groove, and the limiting slider is provided with a matching limiting groove to prevent the limiting slider from coming out of the first sliding groove; the first mating surface and the second mating surface are inclined surfaces, and the moving directions of the limiting slider and the starting slider are perpendicular to each other.

5. A toilet seat base lifting device according to claim 2, characterized in that: The first limiting component is a spring pin, which is installed on the toilet body. The connecting rod guide component is provided with a limiting groove, and the spring pin abuts against the limiting groove after the base rises to the top.

6. The toilet seat base lifting device according to claim 1, characterized in that: The linkage guide assembly includes a linkage and a push rod. One end of the linkage is hinged to the toilet body, and the other end of the linkage is hinged to the push rod. The top of the push rod is connected to the base. During the rotation of the linkage, the push rod is driven to move upward and forward.

7. A toilet seat base lifting device according to claim 6, characterized in that: The linkage guide assembly further includes a guide bracket, one end of the linkage is hinged to the guide bracket, and the linkage guide assembly is provided in two sets. One set of the linkage guide assembly has the guide bracket located on the inner side wall of the toilet body, and the other set of the guide bracket is located at the drain pipe fixing point inside the toilet body. Alternatively, both sets of the guide brackets are located at the drain pipe fixing point inside the toilet body. The lower end of the push rod of one set of the linkage guide assembly is provided with the lifting drive assembly.

8. The toilet seat base lifting device according to claim 1, characterized in that: One of the base and the toilet body is provided with a limiting hole, and the other of the base and the toilet body is provided with a limiting post. The limiting post cooperates with the limiting hole for guidance. The limiting hole is elliptical, and the major axis of the limiting hole is parallel to the center line of the toilet body. During the descent of the base, the limiting post is guided into the limiting hole.

9. A toilet seat base lifting device according to claim 6, characterized in that: It also includes a limiting guide hole, in which the push rod is slidably disposed, and the limiting guide hole is fixedly disposed relative to the toilet body.

10. A toilet seat base lifting device according to claim 1, wherein the output end of the lifting drive assembly is provided with a roller, the roller abutting against the base or connecting rod guide assembly; the roller can slide a certain distance on the base or connecting rod guide assembly, and the lifting drive assembly is a piston cylinder, a cam assembly, a gear and rack assembly, a nut and screw assembly, or an elastic accumulator.

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