Mounting structure of closestool cover plate support and closestool cover plate

Abstract

The utility model provides a toilet cover plate support mounting structure and a toilet cover plate, the toilet cover plate support mounting structure comprises a hollow tubular shaft sleeve, the two ends of the shaft sleeve are through, and the side wall of the shaft sleeve is provided with a through positioning hole; the fixing shaft is arranged in an inner cavity of the shaft sleeve in a sleeved mode, an insertion hole is formed in the fixing shaft in the radial direction, the insertion hole corresponds to the positioning hole, and at least two positioning gears are arranged in the insertion hole; and the positioning pin penetrates through the positioning hole and is inserted into the insertion hole, so that the positioning pin is selectively matched with one positioning gear according to the pipe diameter of the shaft sleeve, and when the positioning pin is matched with the positioning gear, the positioning pin is fixedly connected with the fixed shaft and axially positions the fixed shaft in the shaft sleeve. The installation structure of the closestool cover plate support can be matched with shaft sleeves with different pipe diameters, the universality is good, the manufacturing cost is low, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of toilets, in particular to an installation structure of a toilet cover plate bracket and a toilet cover plate with the installation structure. Background Art

[0002] In the prior art, the seat ring and the upper cover of a toilet cover plate are generally rotatably connected to a toilet ceramic seat through a bracket. The bracket usually includes components such as a bushing, a fixed shaft arranged in the bushing, and an insertion shaft fixed on the toilet ceramic seat. A fixing hole for plugging and unplugging cooperation with the insertion shaft is arranged on the fixed shaft, so as to facilitate the disassembly and assembly of the toilet cover plate. During assembly, the fixed shaft is usually inserted into the inner cavity of the bushing from the openings at both ends of the bushing. When the fixed shaft is inserted in place, the fixed shaft and the bushing form a limit fit both circumferentially and axially, so as to fixedly connect the fixed shaft and the bushing together. In the prior art, the circumferential limit fit between the fixed shaft and the bushing generally adopts the cooperation of a limit rib and a limit chute, while the axial limit fit between the fixed shaft and the bushing has a relatively complex and diverse structure. Some adopt a clamping structure, and some limit the fixed shaft against the bushing through a damping shaft, etc. For example, a quick positioning device for a connecting shaft in a cover plate bushing disclosed in a Chinese invention patent (publication number CN202568055U) realizes the quick positioning of the connecting shaft (i.e., the fixed shaft) in the bushing through a spring pin device. However, the assembly composed of the connecting shaft and the spring pin device in this structure cannot be adapted to bushings with different diameters (toilet cover plates of different models often adopt bushings with different diameters. For example, larger-sized toilet cover plates often match bushings with larger diameters). Bushings with different diameters need to be provided with connecting shafts and spring pin devices of different sizes, resulting in a relatively high manufacturing cost and poor compatibility of the assembly composed of the connecting shaft and the spring pin device. Content of the Utility Model

[0003] To solve the above technical problems, one of the purposes of the utility model is to provide an installation structure of a toilet cover plate bracket, which has a simple structure, can be adapted to bushings with different diameters, has good compatibility, and has a relatively small manufacturing cost. Another purpose of the utility model is to provide a toilet cover plate with the installation structure of the toilet cover plate bracket.

[0004] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0005] An installation structure of a toilet cover plate bracket includes:

[0006] A bushing, the bushing is in a hollow tubular shape, both ends of the bushing are through, and a through positioning hole is arranged on the side wall of the bushing;

[0007] A fixed shaft, the fixed shaft is sleeved in the inner cavity of the bushing, a jack is radially opened in the fixed shaft, the jack corresponds to the positioning hole, and at least two positioning gears are arranged in the jack;

[0008] A positioning pin is inserted through the positioning hole and into the insertion hole, and can be selectively engaged with one of the positioning positions according to the diameter of the bushing. When the positioning pin is engaged with the positioning position, the positioning pin is fixedly connected to the fixed shaft and axially positions the fixed shaft within the bushing.

[0009] In some preferred or optional embodiments, after selecting the positioning pin to be engaged with the corresponding positioning position according to the diameter of the bushing, the head of the positioning pin is embedded in the positioning hole, and the outer surface of the head of the positioning pin is flush with the outer surface of the bushing.

[0010] In some preferred or optional embodiments, a clamping block is provided on the positioning pin, and at least two clamping grooves are provided in the insertion hole along the radial direction of the fixed shaft. The depth dimensions of the respective clamping grooves from the outer surface of the fixed shaft are different, and the clamping grooves define the positioning positions.

[0011] In some preferred or optional embodiments, the respective clamping grooves are arranged staggeredly along the circumferential direction of the insertion hole.

[0012] In some preferred or optional embodiments, the positioning pin can rotate between a locked position and an unlocked position about the axis of the insertion hole. In the locked position, the clamping block is engaged with the clamping groove; in the unlocked position, the clamping block exits the clamping groove; alternatively, the clamping block on the positioning pin and / or the portion connected to the clamping block has elasticity, and the clamping block is elastically deformed to be engaged with the clamping groove.

[0013] In some preferred or optional embodiments, a linear or cross-shaped driving groove is provided on the outer surface of the head of the positioning pin, and an external tool can rotate the positioning pin through the driving groove.

[0014] In some preferred or optional embodiments, an indication mark for indicating the insertion direction of the positioning pin is provided at or around the positioning hole.

[0015] In some preferred or optional embodiments, the fixed shaft and the bushing form a limiting fit in the circumferential direction.

[0016] In some preferred or optional embodiments, there are 2 fixed shafts. Correspondingly, there are 2 positioning holes and 2 positioning pins on the bushing. The two fixed shafts are respectively inserted into the inner cavity of the bushing from the openings at both ends of the bushing.

[0017] In addition, the present utility model further provides a toilet cover plate, which includes a seat ring, an upper cover, and the installation structure of the toilet cover plate bracket described in any one of the above, and the rear ends of the seat ring and the upper cover are respectively rotatably connected to the bushing.

[0018] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0019] In the present utility model, the fixed shaft is configured to have a jack radially opened therein, and the jack corresponds to the positioning hole provided on the bushing. At least two positioning gears are provided in the jack. Further, a positioning pin is inserted through the positioning hole and into the jack, and then, according to the pipe diameter of the bushing, it can be selectively matched with one of the positioning gears. When the positioning pin is matched with the positioning gear, the positioning pin is fixedly connected to the fixed shaft and axially positions the fixed shaft in the bushing. In this way, according to the pipe diameter of the bushing, selecting the positioning pin to be matched with the positioning gear corresponding to the pipe diameter of the bushing can ensure the positioning function of axially positioning the fixed shaft in the bushing by the positioning pin, so that the same fixed shaft and positioning pin can match bushings with different pipe diameters. Specifically, the number of positioning gears provided in the fixed shaft determines the number of bushings with different pipe diameters that can be matched, so that there is no need to specifically set a corresponding fixed shaft and positioning pin for each bushing with a certain pipe diameter. It has good compatibility, low manufacturing cost, and simple structure.

[0020] In the present utility model, at least two card slots are provided in the jack along the radial direction of the fixed shaft, and the depth dimensions of each card slot from the outer surface of the fixed shaft are different. The card slots define the positioning gears, and different card slots are different positioning gears. Using card slots to form the positioning gears has a simple structure and reliable positioning.

[0021] The card slots of the present utility model are arranged staggeredly along the circumferential direction of the jack. In this way, each positioning gear can be effectively and clearly distinguished according to the position of the card slot, so that the assembly process is more intuitive and clear, and the problem of misassembling the gears can be avoided. Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0023] Among them:

[0024] Figure 1 is the three-dimensional assembly drawing of the first embodiment of the present utility model when using a small bushing;

[0025] Figure 2 is the three-dimensional assembly drawing of the first embodiment of the present utility model when using a large bushing;

[0026] Figure 3It is a three-dimensional exploded view when the first embodiment of the present utility model adopts a small bushing;

[0027] Figure 4 It is a three-dimensional exploded view when the first embodiment of the present utility model adopts a large bushing;

[0028] Figure 5a It is a transverse sectional view when the locating pin is in the locked position when the first embodiment of the present utility model adopts a small bushing;

[0029] Figure 5b It is a longitudinal sectional view when the locating pin is in the locked position when the first embodiment of the present utility model adopts a small bushing;

[0030] Figure 5c It is a three-dimensional view when the locating pin is in the locked position when the first embodiment of the present utility model adopts a small bushing;

[0031] Figure 6a It is a transverse sectional view when the locating pin is in the locked position when the first embodiment of the present utility model adopts a large bushing;

[0032] Figure 6b It is a longitudinal sectional view when the locating pin is in the locked position when the first embodiment of the present utility model adopts a large bushing;

[0033] Figure 6c It is a three-dimensional view when the locating pin is in the locked position when the first embodiment of the present utility model adopts a large bushing;

[0034] Figure 7a It is a transverse sectional view when the locating pin is in the unlocked position when the first embodiment of the present utility model adopts a small bushing;

[0035] Figure 7b It is a three-dimensional view when the locating pin is in the unlocked position when the first embodiment of the present utility model adopts a small bushing;

[0036] Figure 8a It is a transverse sectional view when the locating pin is in the unlocked position when the first embodiment of the present utility model adopts a large bushing;

[0037] Figure 8b It is a three-dimensional view when the locating pin is in the unlocked position when the first embodiment of the present utility model adopts a large bushing;

[0038] Figure 9 It is a three-dimensional structural schematic diagram of the locating pin of the first embodiment of the present utility model;

[0039] Figure 10 It is a three-dimensional structural schematic diagram of the fixed shaft of the first embodiment of the present utility model;

[0040] Figure 11Schematic three-dimensional structure diagram of the positioning pin in the first embodiment of the present utility model being engaged with the second card slot;

[0041] Figure 12 Schematic three-dimensional structure diagram of the positioning pin in the first embodiment of the present utility model being engaged with the first card slot;

[0042] Figure 13 Schematic three-dimensional assembly diagram of the second embodiment of the present utility model using three bushings with different pipe diameters, and the pipe diameter sizes of the three bushings increase sequentially from top to bottom;

[0043] Figure 14 Schematic three-dimensional exploded view of the second embodiment of the present utility model when using a small bushing;

[0044] Figure 15 Schematic three-dimensional exploded view of the second embodiment of the present utility model when using a medium bushing;

[0045] Figure 16 Schematic three-dimensional exploded view of the second embodiment of the present utility model when using a large bushing;

[0046] Figure 17 Schematic three-dimensional structure diagram of the positioning pin in the second embodiment of the present utility model;

[0047] Figure 18 One of the schematic three-dimensional structure diagrams of the fixed shaft in the second embodiment of the present utility model;

[0048] Figure 19 Another schematic three-dimensional structure diagram of the fixed shaft in the second embodiment of the present utility model;

[0049] In the figure, the reference numerals are:

[0050] 10 - Bushing; 10a - Small bushing; 10b - Large bushing; 10c - Medium bushing; 11 - Inner cavity of the bushing; 12 - Positioning hole; 13 - Indicator hole; 14 - Limiting groove; 15 - Indicator pattern; 16 - Insertion shaft avoidance hole;

[0051] 20 - Fixed shaft; 21 - Insertion hole; 211 - Card slot; 211a - First card slot; 211b - Second card slot; 211c - Third card slot; 22 - Limiting rib; 23 - Fixing hole;

[0052] 30 - Positioning pin; 31 - Head of the positioning pin; 311 - Driving groove; 32 - Shank of the positioning pin; 321 - Block; 322 - Long slot;

[0053] 40 - Button;

[0054] 50 - Lock rod. Detailed implementation manners

[0055] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0056] Please refer to Figures 1 to 12 , an installation structure of a toilet cover plate bracket according to a first embodiment provided by the present utility model includes a bushing 10, a fixed shaft 20, a positioning pin 30, etc. Among them, the bushing 10 is in a hollow tubular shape, both ends of the bushing 10 are through, and a through positioning hole 12 is provided on the side wall of the bushing 10, and the positioning hole 12 communicates with the inner cavity 11 of the bushing. The fixed shaft 20 is sleeved in the inner cavity 11 of the bushing, a jack 21 is radially opened in the fixed shaft 20, the jack 21 corresponds to the positioning hole 12, and at least two positioning gears are provided in the jack 21. The positioning pin 30 passes through the positioning hole 12 and is inserted into the jack 21, and then can be selectively matched with one of the positioning gears according to the diameter of the bushing 10. When the positioning pin 30 is matched with the positioning gear, the positioning pin 30 is fixedly connected to the fixed shaft 20 and axially positions the fixed shaft 20 in the bushing 10. With such a design, according to the diameter of the bushing 10, selecting the positioning pin 30 to cooperate with the positioning gear corresponding to the diameter of the bushing 10 can ensure the positioning function of axially positioning the fixed shaft 20 in the bushing 10 by the positioning pin 30, so that the same fixed shaft 20 and positioning pin 30 can match bushings 10 with different diameters. Specifically, the number of positioning gears in the fixed shaft 20 determines the number of bushings 10 with different diameters that can be matched, so there is no need to specially set a corresponding fixed shaft 20 and positioning pin 30 for each diameter of the bushing 10. It has good compatibility, low manufacturing cost, and simple structure.

[0057] In this embodiment, the positioning pin 30 includes a head 31 and a rod portion 32 of the positioning pin 30. After selecting the positioning pin 30 to cooperate with the corresponding positioning gear according to the diameter of the bushing 10, the head 31 of the positioning pin 30 is embedded in the positioning hole 12, and preferably, the outer surface of the head 31 of the positioning pin 30 is flush with the outer surface of the bushing 10. Refer to Figure 5b and Figure 6b .

[0058] In this embodiment, a clamping block 321 is provided on the rod portion 32 of the positioning pin 30. Along the radial direction of the fixed shaft 20, at least two clamping grooves 211 are provided on the inner edge of the insertion hole 21. The depth dimensions of the respective clamping grooves 211 from the outer surface of the fixed shaft 20 are different, and the clamping grooves 211 define the positioning gears. Specifically, when a relatively large bushing 10 is used (i.e., when using the large bushing 10b), the clamping block 321 of the positioning pin 30 can be selected to cooperate with the clamping groove 211 with a smaller depth (i.e., the second clamping groove 211b), so as to ensure that the head of the positioning pin 30 can be kept embedded in the positioning hole 12 to achieve the positioning function; when a relatively small bushing 10 is used (i.e., when using the small bushing 10a), the clamping block 321 of the positioning pin 30 can be selected to cooperate with the clamping groove 211 with a larger depth (i.e., the first clamping groove 211a), so as to ensure that the head of the positioning pin 30 can be kept embedded in the positioning hole 12 to achieve the positioning function.

[0059] In order to clearly distinguish the positions of the respective clamping grooves 211, it is preferable that the respective clamping grooves 211 are arranged staggeredly along the circumferential direction of the insertion hole 21. In this way, by adjusting the orientation of the positioning pin 30 inserted into the insertion hole 21, the clamping block 321 on the positioning pin 30 can be accurately engaged with the corresponding clamping groove 211 in this direction, effectively avoiding the problem that if the clamping grooves 211 are arranged at the same circumferential position of the insertion hole 21, it will be difficult to distinguish the position of the clamping groove 211 into which the clamping block 321 needs to be inserted, resulting in misinstallation.

[0060] In this embodiment, the positioning pin 30 can rotate between a locked position and an unlocked position around the axis of the insertion hole 21. In the locked position, the clamping block 321 is engaged with the clamping groove 211 (as shown in Figure 5a , 5b , 5c and Figure 6a , 6b , 6c), so that the positioning pin 30 is fixedly connected to the fixed shaft 20; in the unlocked position, the clamping block 321 exits the clamping groove 211 (as shown in Figure 7a , 7b and Figure 8a , 8b ), and at this time, the positioning pin 30 can be removed from the fixed shaft 20.

[0061] In order to facilitate the rotation of the positioning pin 30, in this embodiment, a straight or cross-shaped driving groove 311 is provided on the outer surface of the head of the positioning pin 30, and an external tool (a straight screwdriver or a cross screwdriver) can rotate the positioning pin 30 through the driving groove 311.

[0062] In this embodiment, an indication mark for indicating the insertion direction of the positioning pin 30 is provided at the positioning hole 12. Specifically, the indication mark is an indication hole 13 protruding outward from the edge of the positioning hole 12, and the indication hole 13 is communicated with the positioning hole 12. The indication hole 13 corresponds to the size of the clamping block 321, and the clamping block 321 can be inserted into the insertion hole 21 from the indication hole 13.

[0063] In this embodiment, the fixed shaft 20 and the shaft sleeve 10 form a limiting fit in the circumferential direction. Specifically, a limiting rib 22 extending axially is provided on the outer peripheral wall of the fixed shaft 20, and a limiting groove 14 extending axially is provided on the inner peripheral wall of the shaft sleeve 10. The limiting rib 22 is matched with the limiting groove 14, so that the fixed shaft 20 and the shaft sleeve 10 can slide axially relative to each other (when the positioning pin is not inserted into the insertion hole 21) and be fixed circumferentially.

[0064] In this embodiment, there are 2 fixed shafts 20. Correspondingly, there are 2 positioning holes 12 on the shaft sleeve 10, and there are also 2 positioning pins 30. The two fixed shafts 20 are respectively inserted into the inner cavity 11 of the shaft sleeve from the two ends of the shaft sleeve. On the shaft sleeve 10, an insertion shaft avoidance hole 16 is respectively provided outside the two positioning holes 12. The insertion shaft avoidance hole 16 is for an insertion shaft (not shown) fixed on the ceramic toilet seat to pass through. A fixing hole 23 is also provided on one side of the insertion hole 21 on the fixed shaft 20, and the fixing hole 23 is in plug-in fit with the insertion shaft.

[0065] In this embodiment, there are 2 positioning gears provided inside the fixed shaft 20. That is, the card slot 211 includes a first card slot 211a and a second card slot 211b. The shaft sleeve 10 includes a small shaft sleeve 10a with a smaller diameter (see Figure 1 , Figure 3 , Figure 5c and Figure 7b ) and a large shaft sleeve 10b with a larger diameter (see Figure 2 , Figure 4 , Figure 6c and Figure 8b ). The depth dimension of the first card slot 211a from the outer surface of the fixed shaft 20 is larger, so as to match the small shaft sleeve 10a; the depth dimension of the second card slot 211b from the outer surface of the fixed shaft 20 is smaller, so as to match the large shaft sleeve 10b. It should be noted that the "large" and "small" here are relative and not specifically defined.

[0066] Preferably, in order to prevent the positioning pin 30 from being wrongly matched with the first card slot 211a and the second card slot 211b, so that the small shaft sleeve 10a and the large shaft sleeve 10b cannot be correctly matched, the positions of the indication holes 13 on the small shaft sleeve 10a and the large shaft sleeve 10b are set to be opposite (see Figure 3 and Figure 4 ), so as to avoid the problem of misassembly.

[0067] In this embodiment, the installation structure of the toilet cover plate bracket further includes a button 40 and two lock rods 50. The lock rods 50 are provided with lock pieces, and the lock pieces are inserted into the fixed shaft 30 and cooperate with the insertion shaft (not shown) fixed on the ceramic toilet seat. This part adopts the existing structure and will not be elaborated here.

[0068] See Figure 3 , when the small bushing 10a is to be used for the installation structure of the toilet cover plate bracket, along the direction of the thick arrow, insert the positioning pin 30 into the jack 21 with the catch 321 facing the indicating hole 13. After the positioning pin 30 is inserted into the jack 21, use a flat-blade screwdriver to rotate the positioning pin 30 counterclockwise by 90 degrees so that the catch 321 of the positioning pin 30 engages with the first card slot 211a (see Figure 5b and Figure 12 ), thereby making the positioning pin 30 fixedly connected to the fixed shaft 20. After the catch 321 of the positioning pin 30 engages with the first card slot 211a, the head 31 of the positioning pin 30 is exactly located in the positioning hole 12, and the outer surface of the head 31 of the positioning pin 30 is flush with the outer surface of the small bushing 10a (see Figure 5b , 5c ), thereby realizing that the positioning pin 30 axially positions the fixed shaft 20 within the small bushing 10a;

[0069] See Figure 4 , when the large bushing 10b is to be used for the installation structure of the toilet cover plate bracket, along the direction of the thick arrow, insert the positioning pin 30 into the jack 21 with the catch 321 facing the indicating hole 13. After the positioning pin 30 is inserted into the jack 21, use a flat-blade screwdriver to rotate the positioning pin 30 clockwise by 90 degrees so that the catch 321 of the positioning pin 30 engages with the second card slot 211b (see Figure 6b and Figure 11 ), thereby making the positioning pin 30 fixedly connected to the fixed shaft 20. After the catch 321 of the positioning pin 30 engages with the second card slot 211b, the head 31 of the positioning pin 30 is exactly located in the positioning hole 12, and the outer surface of the head 31 of the positioning pin 30 is flush with the outer surface of the large bushing 10b (see Figure 6b , 6c ), thereby realizing that the positioning pin 30 axially positions the fixed shaft 20 within the large bushing 10b.

[0070] See Figures 13 - 19Figure, an installation structure of a toilet cover plate bracket according to the second embodiment provided by the present utility model. The main difference from the first embodiment is that in the first embodiment, after the positioning pin 30 is inserted into the jack 21 of the fixed shaft 20, by rotating the positioning pin 30 by a certain angle (such as 90 degrees), the positioning pin 30 is fixedly connected to the fixed shaft 20; while in this embodiment, there is no need to rotate the positioning pin 30, but the clamping block 321 on the positioning pin 30 and / or the part connected to the clamping block 321 is designed to be elastic, and the clamping block 321 is directly clamped with the clamping groove 211 through elastic deformation.

[0071] Specifically, in order to enable the clamping block 321 to be clamped with the clamping groove 211 through elastic deformation, refer to Figure 17 , in this embodiment, a long hole 322 is axially formed on the rod portion 32 of the positioning pin 30, so that the position of the rod portion 32 of the positioning pin 30 corresponding to the long hole 322 has elasticity, and through the elastic deformation of this position, the clamping block 321 can be clamped with the clamping groove 211 through elastic deformation.

[0072] In addition, in the first embodiment, 2 shaft sleeves 10 are provided, while in this embodiment, 3 shaft sleeves 10 are provided. Among them, the shaft sleeve 10 with the smallest diameter is called the small shaft sleeve 10a, the shaft sleeve 10 with the largest diameter is called the large shaft sleeve 10b, and the shaft sleeve 10 with a diameter between the small shaft sleeve 10a and the large shaft sleeve 10b is called the middle shaft sleeve 10c. Figure 13 In, from top to bottom, the respective assembly structure diagrams of the small shaft sleeve 10a, the middle shaft sleeve 10c and the large shaft sleeve 10b are adopted. It is necessary to explain that the "large", "middle" and "small" here are relative and not specifically limited.

[0073] Correspondingly, refer to Figure 19 , there are 3 positioning gears in the fixed shaft 20, that is, the clamping groove 211 includes a first clamping groove 211a, a second clamping groove 211b and a third clamping groove 211c. The depth dimension of the first clamping groove 211a from the outer surface of the fixed shaft 20 is larger, so as to match the small shaft sleeve 10a; the depth dimension of the second clamping groove 211b from the outer surface of the fixed shaft 20 is smaller, so as to match the large shaft sleeve 10b; the depth dimension of the third clamping groove 211c from the outer surface of the fixed shaft 20 is medium (between the above larger depth dimension and smaller depth dimension), so as to match the middle shaft sleeve 10c. Similarly, the "large", "middle" and "small" here are relative and not specifically limited. Figure 19 In, the arrows of the reference numerals 211a, 211c, 211b respectively indicate the bottom wall positions of the first clamping groove 211a, the third clamping groove 211c and the second clamping groove 211b. It can be clearly seen from the figure that the bottom wall positions of the first clamping groove 211a, the third clamping groove 211c and the second clamping groove 211b are from deep to shallow.

[0074] In addition, the indicating mark in the first embodiment is the indicating hole 13, while the indicating mark in this embodiment is the indicating pattern 15 provided on the outer periphery of the positioning hole 12. The indicating patterns 15 on the three bushings 10 are respectively I, II, and III (see Figures 13 - 16 ). The positions of the indicating patterns 15 on the three bushings 10 in the circumferential direction of the positioning hole 12 are different, so as to indicate the insertion direction of the positioning pin 30 to correspondingly match bushings 10 with different pipe diameters.

[0075] See Figure 14 , when the small bushing 10a needs to be used for the installation structure of the toilet cover bracket, along the direction of the thick arrow, insert the positioning pin 30 into the jack 21 with the catch 321 facing the indicating mark I. Insert the positioning pin 30 in this direction. After elastic deformation, the catch 321 of the positioning pin 30 will be engaged with the first card slot 211a, so that the positioning pin 30 is fixedly connected to the fixed shaft 20. After the catch 321 of the positioning pin 30 is engaged with the first card slot 211a, the head 31 of the positioning pin 30 is exactly located in the positioning hole 12, and the outer surface of the head 31 of the positioning pin 30 is flush with the outer surface of the small bushing 10a (see Figure 13 ), thus realizing the axial positioning of the fixed shaft 20 by the positioning pin 30 within the small bushing 10a;

[0076] See Figure 15 , when the medium bushing 10c needs to be used for the installation structure of the toilet cover bracket, along the direction of the thick arrow, insert the positioning pin 30 into the jack 21 with the catch 321 facing the indicating mark II. Insert the positioning pin 30 in this direction. After elastic deformation, the catch 321 of the positioning pin 30 will be engaged with the third card slot 211c, so that the positioning pin 30 is fixedly connected to the fixed shaft 20. After the catch 321 of the positioning pin 30 is engaged with the third card slot 211c, the head 31 of the positioning pin 30 is exactly located in the positioning hole 12, and the outer surface of the head 31 of the positioning pin 30 is flush with the outer surface of the medium bushing 10c (see Figure 13 ), thus realizing the axial positioning of the fixed shaft 20 by the positioning pin 30 within the medium bushing 10c;

[0077] See Figure 16 , when the large bushing 10b needs to be used for the installation structure of the toilet cover bracket, along the direction of the thick arrow, insert the positioning pin 30 into the jack 21 with the catch 321 facing the indicating mark III. Insert the positioning pin 30 in this direction. After elastic deformation, the catch 321 of the positioning pin 30 will be engaged with the second card slot 211b, so that the positioning pin 30 is fixedly connected to the fixed shaft 20. After the catch 321 of the positioning pin 30 is engaged with the second card slot 211b, the head 31 of the positioning pin 30 is exactly located in the positioning hole 12, and the outer surface of the head 31 of the positioning pin 30 is flush with the outer surface of the large bushing 10b (see Figure 13), so that the positioning pin 30 axially positions the fixed shaft 20 within the large shaft sleeve 10b.

[0078] It can be understood that in the first embodiment, the fixed shaft 20 is provided with two positioning gears (the first card slot 211a, the second card slot 211b), and in the second embodiment, the fixed shaft 20 is provided with 3 positioning gears (the first card slot 211a, the second card slot 211b, and the third card slot 211c). In other embodiments, the fixed shaft 20 can also be provided with 4, 5, 6 or other positioning gears, which are specifically selected according to needs.

[0079] In addition, the present utility model also provides a toilet cover plate, which includes a seat ring (not shown) and an upper cover (not shown), and further includes the installation structure of the toilet cover plate bracket as described in any one of the above. The rear ends of the seat ring and the upper cover are respectively rotatably connected to the shaft sleeve 10. The seat ring and the upper cover are respectively installed on a ceramic toilet seat (not shown) through the installation structure of the toilet cover plate bracket.

[0080] The present utility model has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A toilet cover bracket installation structure, characterized in that: include: A shaft sleeve, wherein the shaft sleeve is in a hollow tubular shape, the two ends of the shaft sleeve are connected, and a through positioning hole is provided on the side wall of the shaft sleeve; A fixed shaft, wherein the fixed shaft sleeve is arranged in the inner cavity of the shaft sleeve, a plug hole is radially opened in the fixed shaft, the plug hole corresponds to the positioning hole, and at least two positioning gears are arranged in the plug hole; A positioning pin is passed through the positioning hole and inserted into the jack, and can be selectively matched with one of the positioning gears according to the tube diameter of the sleeve. When the positioning pin matches the positioning gear, the positioning pin is fixedly connected to the fixed shaft and axially positions the fixed shaft in the sleeve.

2. The installation structure of the toilet cover bracket according to claim 1, characterized in that: After the locating pin is selected to match the corresponding locating position according to the diameter of the sleeve, the head of the locating pin is embedded in the locating hole, and the outer surface of the head of the locating pin is flush with the outer surface of the sleeve.

3. The installation structure of the toilet cover bracket according to claim 1, characterized in that: The positioning pin is provided with a clamping block, and the insertion hole is provided with at least two clamping grooves along the radial direction of the fixed shaft. The depth dimensions of each clamping groove from the outer surface of the fixed shaft are different, and the clamping grooves define the positioning gear positions.

4. The installation structure of the toilet cover bracket according to claim 3, characterized in that: The card slots are staggered along the circumferential direction of the insertion hole.

5. The installation structure of the toilet cover bracket according to claim 3, characterized in that: The positioning pin can rotate around the axis of the socket between a locking position and an unlocking position, and in the locking position, the card block is engaged with the card slot; in the unlocking position, the card block withdraws from the card slot; or, the card block on the positioning pin and / or the part connected to the card block are elastic, and the card block is engaged with the card slot through elastic deformation.

6. The installation structure of the toilet cover bracket according to claim 5, characterized in that: The outer surface of the head of the positioning pin is provided with a straight or cross-shaped driving groove, and an external tool can rotate the positioning pin through the driving groove.

7. The installation structure of the toilet cover bracket according to claim 1, characterized in that: An indication mark for indicating the insertion direction of the locating pin is provided at the locating hole or on the periphery of the locating hole.

8. The installation structure of the toilet cover bracket according to claim 1, characterized in that: The fixed shaft and the shaft sleeve form a limited fit in the circumferential direction.

9. The installation structure of the toilet cover bracket according to claim 1, characterized in that: There are two fixed shafts, and correspondingly, there are two positioning holes on the shaft sleeve, and two positioning pins are also provided. The two fixed shafts are respectively installed into the inner cavity of the shaft sleeve from the openings at both ends of the shaft sleeve.

10. A toilet cover, comprising a seat ring and an upper cover, characterized in that: The invention comprises the installation structure of the toilet cover bracket according to any one of claims 1 to 9, wherein the rear end of the seat ring and the rear end of the upper cover are rotatably connected to the sleeve respectively.

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