CN113775911A - Sliding structure with lubrication, suction device and water tank on toilet - Google Patents
Sliding structure with lubrication, suction device and water tank on toilet Download PDFInfo
- Publication number
- CN113775911A CN113775911A CN202111082899.2A CN202111082899A CN113775911A CN 113775911 A CN113775911 A CN 113775911A CN 202111082899 A CN202111082899 A CN 202111082899A CN 113775911 A CN113775911 A CN 113775911A
- Authority
- CN
- China
- Prior art keywords
- oil
- wall
- shell
- piston
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000005461 lubrication Methods 0.000 title claims abstract description 39
- 239000003921 oil Substances 0.000 claims abstract description 133
- 238000003860 storage Methods 0.000 claims abstract description 52
- 239000010687 lubricating oil Substances 0.000 claims abstract description 47
- 230000001050 lubricating effect Effects 0.000 claims abstract description 28
- 239000010865 sewage Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 25
- 210000002268 wool Anatomy 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000001680 brushing effect Effects 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
- E03D11/06—Bowls with downwardly-extending flanges for the sake of flushing
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
Abstract
The invention discloses a sliding structure with lubrication, a suction device and a water tank on a toilet. The sliding structure with lubrication includes a housing, a sliding member, and a lubricating portion. The sliding piece is arranged in the shell and moves axially relative to the shell, and the axial movement is realized by the sliding connection of the outer wall of the sliding piece and the inner wall of the shell. The lubricating part comprises an oil conveying brush and an oil storage bin arranged on the sliding part, lubricating oil is stored in the oil storage bin, the brushing end of the oil conveying brush is abutted against the inner wall of the shell, the oil conveying part penetrates through the bulkhead of the oil storage bin to extend into the oil storage bin, and the oil conveying brush is used for being permeated by the lubricating oil and smearing the lubricating oil on the inner wall of the shell during axial movement. Because the clearance between the inner wall of the shell and the outer wall of the sliding part is extremely small, the lubricating oil smeared on the inner wall of the shell can extend and be fully distributed in the whole clearance between the inner wall of the shell and the outer wall of the sliding part, and therefore the lubricating effect is achieved.
Description
Technical Field
The invention belongs to the technical field of a toilet bowl, and particularly relates to a sliding structure with lubrication, a suction device and a water tank on the toilet bowl.
Background
In mechanical equipment with frequent friction movement, a lubricating device is omitted, and if lubrication is insufficient, parts which are in contact friction with each other are seriously abraded and are easily scrapped. Most of lubricating devices directly transport lubricating oil to parts needing lubrication by using a lubricating oil way, and certain lubricating oil can be added into the lubricating devices at regular intervals, so that the automation is not facilitated. Moreover, when the part to be lubricated is arranged in a closed space of the mechanical equipment, the problems of difficult maintenance and operation, low production efficiency, large equipment volume, increased production cost and the like can also occur.
Disclosure of Invention
In order to solve the problems, the invention provides a sliding structure with lubrication, which comprises a shell, a sliding part and a lubrication part, wherein the sliding part is arranged in the shell and axially moves relative to the shell, and the axial movement is realized by the sliding connection between the outer wall of the sliding part and the inner wall of the shell;
the lubricating part comprises an oil conveying brush and an oil storage bin arranged on the sliding part, lubricating oil is stored in the oil storage bin, the painting end of the oil conveying brush is abutted to the inner wall of the shell, the oil conveying part penetrates through the bulkhead of the oil storage bin and extends into the oil storage bin, and the oil conveying brush is used for being permeated by the lubricating oil and smearing the lubricating oil on the inner wall of the shell during axial movement.
In one embodiment, a cavity with an opening is arranged on an axial end face of the sliding part, a sealing cover is arranged on the opening of the cavity, and the cavity and the sealing cover form the oil storage bin;
the sealing cover is provided with a through hole for the oil conveying brush to penetrate through.
In one embodiment, when the cross section of the inner wall of the shell along the axis of the inner wall of the shell has the highest point, the highest points of all the cross sections of the inner wall of the shell along the axis of the inner wall of the shell form an applying area of the oil conveying brush, and the applying end of the oil conveying brush is abutted against the applying area.
In one embodiment, a plurality of the oil conveying brushes are arranged, and the smearing ends of the oil conveying brushes are uniformly distributed along the radial direction of the inner wall of the shell.
In one embodiment, the cross-section of the inner wall of the housing along its axis and the cross-section of the outer wall of the slider along its axis are both circular.
In one embodiment, the oil conveying brush extends into the lowest point of the vertical height in the oil storage bin.
In one embodiment, the oil delivery brush is made of wool felt.
A suction device with lubrication comprises a shell seat, a piston cylinder and a piston, wherein the shell seat is axially provided with a sewage discharge outlet and radially provided with a sewage drainage channel; the pumping device is provided with a sliding structure with lubrication as described in any one of the above, the housing is the piston cylinder, and the sliding member is the piston.
A water tank on a toilet bowl comprises a water tank shell and a piston, wherein the water tank shell is provided with a water inlet and a water outlet, the piston is axially and slidably connected in the water tank shell, the piston divides an inner cavity of the water tank shell into an upper cavity and a lower cavity, and the water inlet and the water outlet are communicated with the lower cavity; the water tank is provided with the sliding structure with the lubrication function, the shell is the water tank shell, and the sliding part is the piston.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
according to the lubricating sliding structure provided by the invention, the lubricating oil permeates into the oil conveying brush, the oil conveying brush is like a brush to brush a small amount of lubricating oil on the inner wall of the shell, and the inner wall of the shell is in sliding connection with the outer wall of the sliding part, so that the distance between the inner wall of the shell and the outer wall of the sliding part is extremely small, and the lubricating oil brushed on the inner wall of the shell can extend to be fully distributed in the whole gap between the inner wall of the shell and the outer wall of the sliding part, thereby playing a lubricating role. The lubricating oil coated on the lubricating oil storage bin is trace, so that the lubricating oil in the oil storage bin can be used for a very long time, the capacity of the oil storage bin is adjusted according to the service life of mechanical equipment comprising the lubricating sliding structure, and the volume of the oil storage bin is still small while the service life of the lubricating oil in the oil storage bin exceeds the service life of other structures of the mechanical equipment. Therefore, the mechanical equipment with the lubricating sliding structure does not need to supplement lubricating oil, does not need to maintain the lubricating part, is convenient to realize automation and high in production efficiency, and the volume of the mechanical equipment is not greatly increased by arranging the lubricating part. Meanwhile, the invention has simple structure.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
FIG. 1 is a schematic side sectional view of a lubricated suction device according to the present invention;
FIG. 2 is a schematic top sectional view of a lubricated suction device according to the present invention;
FIG. 3 is a schematic sectional view of a hydraulic pressure accumulating mechanism provided with a tank on a toilet bowl according to the present invention;
fig. 4 is a schematic view of a toilet bowl.
Description of reference numerals:
100: suction means (with lubrication); 110: a piston cylinder; 111: a locking sleeve seat; 112: a spring seat guide sleeve; 113: an inner edge; 114: a dead bolt free bearing; 120: a piston; 121: a piston rod; 122: a spring guide seat; 123: an outer edge; 124: pulling a rope; 130: an oil storage bin; 131: a sealing cover; 140: an oil conveying brush; 150: a first housing seat; 151: a sewage draining outlet; 152: a water drainage channel; 160: a second housing seat; 161: a piston rod guide sleeve; 162: a guide cylinder; 163: locking the groove; 170: a latch bolt assembly; 171: a latch bolt; 172: a locking sleeve; 173: a cover plate; 174: a groove; 175: a spring seat; 176: a guide slide; 181: a first spring; 182: a second spring; 183: a third spring; 190: a seal ring;
200: a hydraulic pressure energy storage mechanism; 210: a piston cylinder; 211: a piston guide cylinder; 220: a piston; 221: a piston rod; 222: briquetting; 223: a guide cylinder; 230: an oil storage bin; 231: a sealing cover; 240: an oil conveying brush; 250: a cylinder body seat; 251: a water inlet; 252: a water outlet; 253: a sealing rod; 254: a first piston rod bore; 260: a support; 261: a power slider; 262: a slider lock seat; 263: a dead bolt free bearing; 264: a spring hole; 265: a spring seat; 266: locking the groove; 267: a second piston rod bore; 270: a latch bolt assembly; 271: a latch bolt; 272: a wedge block; 273: a bevel; 274: locking; 281: a first spring; 282: a second spring; 283: a third spring;
300: a pulley.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
Example 1
Referring to fig. 1 and 3, the present embodiment provides a sliding structure with lubrication, including a housing, a sliding member, and a lubricating portion. The sliding piece is arranged in the shell and moves axially relative to the shell, and the axial movement is realized by the sliding connection of the outer wall of the sliding piece and the inner wall of the shell. The lubricating part comprises oil delivery brushes 140 and 240 and oil storage bins 130 and 230 arranged on the sliding part, lubricating oil is stored in the oil storage bins 130 and 230, the brushing ends of the oil delivery brushes 140 and 240 are abutted against the inner wall of the shell, the oil delivery members 140 and 240 penetrate through the bulkheads of the oil storage bins 130 and 230 to extend into the oil storage bins, and the oil delivery brushes 140 and 240 are used for being permeated by the lubricating oil and smearing the lubricating oil on the inner wall of the shell during axial movement.
The contact part of the axial movement of the shell and the sliding piece is the shell inner wall and the sliding piece outer wall, friction force exists between the shell inner wall and the sliding piece outer wall, and the friction force between the shell inner wall and the sliding piece outer wall is reduced by lubricating the relative movement between the shell inner wall and the sliding piece outer wall. The invention daubs the lubricating oil on the inner wall of the shell by the smearing ends of the oil delivery brushes 140 and 240 permeated by the lubricating oil sliding on the inner wall of the shell, and then the lubricating oil daubed on the inner wall of the shell can extend to be fully distributed in the whole gap between the inner wall of the shell and the outer wall of the sliding part due to the extremely small gap between the inner wall of the shell and the outer wall of the sliding part, thereby playing a role of lubrication.
The selection of a material that is permeable to the lubricant but has a tight internal structure for the oil delivery brushes 140, 240 allows only a minimal amount of lubricant to remain on the application surface each time the application end of the oil delivery brushes 140, 240 slides across the application surface. The oil delivery brushes 140 and 240 are made of wool felt in this embodiment, and other materials can be used in other embodiments, which are not limited herein. Because the clearance between the inner wall of the shell and the outer wall of the sliding part is extremely small, and the oil conveying brushes 140 and 240 can paint lubricating oil on the inner wall of the shell when the shell and the sliding part axially slide with each other every time, the lubricating function can be realized when the oil conveying brushes 140 and 240 paint a small amount every time; and therefore, the lubricating oil in the small- volume oil sump 130, 230 can be used for a long time. Therefore, the service life of the lubricating oil in the oil storage bins 130 and 230 is longer than the service life of the mechanical equipment provided with the embodiment, and the volume of the oil storage bins 130 and 230 is still small. Therefore, mechanical equipment does not need to be supplemented with lubricating oil, the lubricating part does not need to be maintained, automation and high production efficiency are conveniently realized, and the lubricating part provided by the embodiment is arranged, so that the volume of the mechanical equipment is not greatly increased.
The structure of the present embodiment will now be explained.
Generally, this embodiment is only a part of a mechanical device that requires axial movement between the housing and the slide in this embodiment. In actual mechanical devices, there may be other structures outside the housing and other structures inside the slide. In the movement of the actual mechanical device, the housing may be moved or not moved and the slider may be moved or not moved with respect to the base of the actual mechanical device.
A cavity having an opening may be provided on an axial end surface of the slider, and a seal cover 131, 231 may be provided at the opening of the cavity, and the cavity and the seal cover 131, 231 may form the oil sump 130, 230. Through holes are arranged on the sealing covers 131 and 231 and used for the penetration of the oil conveying brushes 140 and 240. Of course, the arrangement of the oil storage bin 30, 230 on the sliding member may also have other ways, which are not limited herein.
When the axes of the shell and the sliding piece are inclined to be horizontally arranged or are directly horizontally arranged, the cross section of the inner wall of the shell along the axis has the highest point, the highest points of all the cross sections of the inner wall of the shell along the axis form the coating area of the oil conveying brush 140 and 240, and the coating end of the oil conveying brush 140 and 240 is abutted against the coating area. So can utilize gravity to make lubricating oil fill the whole interval between shell inner wall and the slider outer wall more conveniently fast effectively.
When the axes of the casing and the sliding member are inclined to be vertically arranged or are directly vertically arranged, the lubricating oil cannot be covered by gravity in the gap between the inner wall surface of the casing and the outer wall surface of the sliding member, the upper part of the gap and the part far away from the oil conveying brushes 140 and 240, the whole covering is long in time consumption, and even a part of the area cannot be covered. Therefore, at this time, a plurality of oil delivery brushes 140 and 240 may be provided according to actual conditions, and more preferably, the smearing ends of the plurality of oil delivery brushes 140 and 240 may be uniformly distributed along the inner wall of the housing in the radial direction. Specifically, the number of the oil sumps 130 and 230 may be equal to or less than the number of the oil transfer brushes 140 and 240. When the two are equal in number, one oil storage bin 130, 230 corresponds to one oil conveying brush 140, 240; when the number of the oil storage bins 130, 230 is less than the number of the oil transfer brushes 140, 240, a plurality of oil transfer brushes 140, 240 may be disposed on one oil storage bin 130, 230. The specific setting mode can be selected according to the actual situation.
The lubricating oil is convenient to spread the whole gap between the inner wall of the shell and the outer wall of the sliding part, and the cross section of the inner wall of the shell along the axis and the cross section of the outer wall of the sliding part along the axis can be set to be circular under the allowable condition. In order to fully utilize the lubricating oil in the oil storage bins 130 and 230, the oil delivery brushes 140 and 240 extend into the lowest point of the vertical height in the oil storage bins 130 and 230.
Example 2
Referring to fig. 1 and 3, the present embodiment provides a pumping device 100 with lubrication, which includes a housing base 150, a piston cylinder 110 and a piston 120, wherein the housing base is axially provided with a sewage draining outlet 151 and radially provided with a sewage draining passage 152, the piston cylinder 110 is axially slidably disposed in the housing base, the piston 120 is axially slidably disposed in the piston cylinder 110, the piston 120 axially moves to open or close the sewage draining outlet 151, and drives the piston cylinder 110 to axially move to open or close the sewage draining passage 152 after a certain displacement. In the embodiment, the lubricating sliding structure is provided in the lubricating pumping device 100 as described in embodiment 1, wherein the housing in the sliding structure is the piston cylinder 110, the sliding member is the piston 120, the oil storage bin 130 is provided on the piston 120, and the oil delivery brush 140 applies lubricating oil on the inner wall of the piston cylinder 110.
The present embodiment provides a suction device 100 with lubrication that is an improvement over some existing toilet suction devices. The tail end (drain outlet 151) of the siphon pipe of the toilet bowl is provided with the suction device, and negative pressure is formed at the tail end of the siphon pipe through the piston motion of the piston cylinder 110 and the piston 120 in the suction device, so that the water in the pipeline can quickly siphon, and the purposes of water saving and sewage discharge are achieved. For example, patent document CN106049638A discloses a suction and discharge device for a toilet. The improvement of the present embodiment is mainly directed to the improvement of the lubrication between the piston cylinder 110 and the piston 120 of the suction device.
Because the piston 120 is in the suction process, the inner wall of the piston cylinder 110 is eroded by the sewage, so that the friction force between the sealing ring of the piston 120 and the inner wall of the piston cylinder 110 is large, and normal work cannot be obtained, and the friction force generated by the sealing ring and the piston cylinder 110 is overcome, and the pulling force for pulling the pulling rope 124 of the piston cylinder 110 must be increased, so that the sealing ring and the piston cylinder 110 are seriously abraded, and the service life is short. However, because the size, the installation position and the operable space of the toilet bowl are limited, if a lubricating system is formed by adopting the traditional oil injection mode of the oil nozzle and the oil cup, the defects of complex structure, difficult maintenance and operation in a closed space, low production efficiency, increased product cost and the like are caused.
The suction device 100 with lubrication provided by the embodiment is provided with the lubrication part of the invention, the smearing end of the oil delivery brush 140 in the lubrication part is abutted against the inner wall of the piston cylinder 110, the oil delivery brush 140 paints a small amount of lubricating oil on the inner wall of the piston cylinder 110 along with the movement of the piston 120, and the lubricating oil extends along the inner wall of the piston cylinder 110 from top to bottom until the inner wall of the piston cylinder 110 is fully distributed due to the relative reciprocating movement of the piston 120 and the piston cylinder 110, so that the lubrication effect is achieved, the friction force generated by the inner wall of the piston cylinder 110, a sealing ring and the outer wall of the piston 120 is reduced, the service life of a product is prolonged, and the lubrication part has a simple structure, does not need to supplement oil and has a good lubrication effect.
The structure of the present embodiment will now be explained.
In particular, the housing seats comprise a first housing seat 150 and a second housing seat 150 axially connected to each other, and the first housing seat 150, the second housing seat 160, and the piston cylinder 110 may all be cylindrical structures.
The first housing seat 150 is a cylindrical structure with an open left end, a sewage outlet 151 is disposed on the axial right end face of the first housing seat, and a sewage channel 152 is radially disposed on the radial side wall of the first housing seat.
The second housing base 160 is a cylindrical structure with an open right end, and the open end of the second housing base is coaxially covered on the first housing base 150, so that the second housing base 160 and the first housing base 150 form an accommodating space.
A piston rod guide sleeve 161 and a guide cylinder 162 are axially disposed in the second housing seat 160. A piston rod guide 161 is provided at the center of the second housing seat 160, and two guide cylinders 162 are provided on the inside of the second housing seat 160, the two guide cylinders 162 being symmetrically provided with respect to the piston rod guide 161. The number of the guide cylinders 162 may also be 3 or 4, and the number of the guide cylinders 162 is not limited herein and may be adjusted according to specific situations.
The piston cylinder 110 is coaxially disposed in the accommodating space formed by the first housing seat 150 and the second housing seat 160, and one end of the piston cylinder 110 abuts against the inner end surface (i.e., the end surface on which the drain outlet 151 is disposed) of the first housing seat 150, so that the drain outlet 151 is communicated with the inside of the piston cylinder 110, and meanwhile, the side wall of the piston cylinder 110 seals the drainage channel 152. The other end of the piston cylinder 110 is provided with a locking sleeve seat 111 sleeved on the piston rod guide sleeve 161 and a spring seat guide sleeve 112 extending into the guide cylinder 162, the locking sleeve seat 111 can axially move along the outer side wall of the piston rod guide sleeve 161, and the spring seat guide sleeve 112 can axially move along the inner side wall of the guide cylinder 162. The locking sleeve base 111 and the spring base guide sleeve 112 can be integrally formed with the piston cylinder 110.
The piston 120 is coaxially arranged in the piston cylinder 110, one end of the piston 120 abuts against the end face of the first shell seat 150 where the sewage outlet 151 is located, and the piston 120 seals the sewage outlet 151; the other end of the piston 120 is provided with a piston rod 121 extending into the piston rod guide sleeve 161 and a spring guide 122 extending into the spring seat guide sleeve 112, the piston rod 121 can axially move along the inner side wall of the piston rod guide sleeve 161, and the spring guide 122 can axially move along the inner side wall of the spring seat guide sleeve 112.
A cavity with an opening is arranged at one side of the piston 120 far away from the sewage draining exit 151, a sealing cover 131 is arranged at the opening of the cavity, and the cavity and the sealing cover 131 form an oil storage bin 130. The sealing cover 131 is provided with a through hole, the smearing end of the oil delivery brush 140 is abutted against the inner wall surface of the piston cylinder 110, and the through hole penetrating the sealing cover 131 extends into the oil storage bin 130. When the outer wall of the piston 120 and the inner wall of the piston cylinder 110 slide relatively, the oil delivery brush 140 can slightly paint lubricating oil on the inner wall of the piston cylinder 110.
Furthermore, the highest point of all cross sections of the inner wall of the piston cylinder 110 along the axis thereof forms an applying area of the oil conveying brush 140, and the applying end of the oil conveying brush 140 is abutted against the applying area; the oil-conveying brush 140 can extend into the lowest point of the vertical height in the oil storage bin 130 and extend into the lowest point of the oil storage bin 130, which is beneficial to fully using the lubricating oil in the oil storage bin 130.
A sealing ring 190 may be provided at the sliding connection between the outer wall of the piston 120 and the inner wall of the piston cylinder 110 for preventing sewage from the sewage drain 151 from flowing into the interior of the piston 120 and the piston cylinder 110 to affect the use of the pumping device 100.
A first spring 181 is disposed between the spring guide 122 and the spring guide 112, and a second spring 182 is disposed between the piston rod 121 and the piston rod guide 161. When the piston 120 moves to the left, the piston rod 121 moves to the left at the piston rod guide bushing 161 and compresses the second spring 182, and the spring guide 122 moves to the left at the spring seat guide bushing 112 and compresses the first spring 181.
An outer edge 123 is arranged at one end of the spring guide seat 122 extending into the spring seat guide sleeve 112, an inner edge 113 is arranged at the connecting end of the spring seat guide sleeve 112 and the spring guide seat 122, and the outer edge 123 and the inner edge 113 are matched to prevent the spring guide seat 122 from separating from the spring seat guide sleeve 112 in the moving process, so that telescopic connection is realized.
A bolt assembly 170 is further arranged between the locking sleeve seat 111 and the piston rod guide sleeve 161, and the bolt assembly 170 comprises a bolt 171, a locking sleeve 172, a cover plate 173 and a third spring 183. Specifically, an annular groove is formed in one circle of the side wall of the locking sleeve seat 111, the locking sleeve 172 is a cylindrical body and is arranged in the annular groove, and the locking sleeve 172 can axially slide along the inner wall of the annular groove. A cover plate 173 covers the end face of the notch at the right end of the annular groove to prevent the locking sleeve 172 from coming off the annular groove. One end of the locking sleeve 172 is provided with a spring seat 175, and a third spring 183 is axially arranged between the spring seat 175 and the annular groove. The other end of the locking sleeve 172 is provided with a guide sliding seat 176, and the guide sliding seat 176 extends out of the cover plate 173; the inner wall of the locking sleeve seat 111 is provided with a mounting hole, a bolt hinged seat 114 is arranged in the mounting hole, and a bolt 171 is arranged on the bolt hinged seat 114; the inner wall of the locking sleeve 172 is provided with a groove 174, and the outer wall of the piston rod guide sleeve 161 is provided with a locking groove 163.
The axis of the piston rod 121 is further connected with a pull rope 124, and the pull rope 124 is led out from the piston rod guide sleeve 161.
The operation of the suction device with lubrication 100 provided in the present embodiment will be further described below:
before sewage is discharged, one end of the piston cylinder 110 is abutted against the inner end face of the first shell seat 150, and the end face of the piston 120 seals the sewage discharge port 151, namely the sewage discharge port 151 is disconnected with a sewer. When sewage drainage is needed, the pulling rope 124 is pulled leftwards, the pulling rope 124 drives the piston 120 to move leftwards in the cylinder sleeve by overcoming the resistance of the first spring 181 and the second spring 182, and at the moment, negative pressure is formed in the piston cylinder 110 at the right end of the piston 120 to promote water in the sewage drainage port 151 to enter the piston cylinder 110. The spring guide 122 moves in the spring guide sleeve 112, the piston rod 121 moves in the piston rod guide sleeve 161, and meanwhile, the oil delivery brush 140 arranged in the oil storage bin 130 on the piston 120 pushes against the inner wall of the piston cylinder 110 to move leftwards, so that the lubricating oil on the oil delivery brush 140 is coated on the inner wall of the piston cylinder 110.
The piston 120 moves to the left, and when the left end face of the piston 120 touches the end face of the locking sleeve 172, the piston 120 and the locking sleeve 172 move to the left against the resistance of the third spring 183. When the groove 174 on the locking sleeve 172 moves to the position of the locking tongue 171, the locking tongue 171 is caused to pop out of the locking groove 163 of the second housing seat 160, unlocking between the locking sleeve seat 111 and the piston rod guide sleeve 161, i.e. unlocking between the piston cylinder 110 and the second housing seat 160. At this time, the end face of the piston 120 abuts against the piston rod guide sleeve 161 to stop moving, the elastic force of the first spring 181 is released, the piston cylinder 110 moves leftwards under the action of the elastic force of the first spring 181, at this time, the oil conveying brush 140 abutting against the inner wall of the piston cylinder 110 continues to coat lubricating oil on the inner wall of the piston cylinder 110, and the locking sleeve seat 111 and the spring seat guide sleeves 112 on the two sides on the piston cylinder 110 respectively slide on the piston rod guide sleeve 161 of the second housing seat 160 and in the two guide cylinders 162. The piston cylinder 110 moves leftward to gradually open the drain passage 152, so that the drain outlet 151 is communicated with the drain passage 152, and the sewage is discharged from the drain passage 152, thereby completing the washing.
After the sewage draining is finished, the pulling rope 124 is loosened, the piston 120 moves rightwards in the piston cylinder 110 under the action of the first spring 181 and the second spring 182, when the outer edge 123 of the spring guide 122 is clamped with the inner edge 113 of the spring seat guide sleeve 112 on the piston cylinder 110, and under the continuous action of the second spring 182, the piston 120 drives the piston cylinder 110 to move rightwards. When the piston cylinder 110 and the piston 120 move to be engaged with the inner end surface of the first shell seat 150, the sewage draining outlet 151 is closed, and the sewage draining channel 152 is disconnected; meanwhile, the latch bolt 171 hinged to the latch bolt hinge seat 114 of the piston cylinder 110 reaches the position of the latch groove 163 of the second housing seat 160, and as the piston 120 moves rightward, the piston 120 releases the pressing on the latch sleeve 172, so that the latch sleeve 172 moves rightward in the cover 173 (the cover 173 is an annular structure as viewed from the whole pumping device 100) through the guide slide 176 under the action of the third spring 183, and the latch bolt 171 is pressed by the latch sleeve 172, retreats from the groove 174 of the latch sleeve 172 and is re-clamped in the latch groove 163 of the second housing seat 160, so that the piston cylinder 110 is locked with the second housing seat 160, and the resetting is completed.
Example 3
Referring to fig. 3 and 4, the embodiment provides a water tank on a toilet bowl, which includes a water tank housing and a piston 220, wherein the water tank housing is provided with a water inlet 251 and a water outlet 252, the piston 220 is axially slidably disposed in the water tank housing, and the piston 220 divides an inner cavity of the water tank housing into an upper cavity and a lower cavity, and both the water inlet 251 and the water outlet are communicated with the lower cavity.
The water tank on the toilet bowl provided by the embodiment is an improvement on the existing water tanks of some toilet bowls. The piston 220 is axially slidably disposed in the water tank housing, and the piston 220 is driven to slide in the water tank housing by the change of water pressure of water in the water tank. For example, patent document No. CN201610626647.4 discloses a water pressure accumulator mechanism for a toilet bowl. Because water is used for lubrication between the piston 220 and the piston cylinder 210 of the mechanism, the generated friction force is large, so that the piston 220 and the inner wall of the piston cylinder 210 are seriously abraded, the service life of the toilet is greatly shortened, and the use effect is seriously influenced. The improvement points of the embodiment mainly lie in that: the lubrication portion provided by the present invention is provided at the sliding position between the tank case and the piston 220.
The water tank on the toilet bowl provided by the embodiment is provided with the lubricating part, the smearing end of the oil conveying brush 240 in the lubricating part is abutted to the inner wall of the water tank, and along with the movement of the piston 220, the oil conveying brush 240 coats a small amount of lubricating oil on the inner wall of the water tank shell, so that a layer of oil film is formed on the inner wall of the water tank shell, a lubricating effect is achieved, friction generated between the inner wall of the water tank shell and the outer wall of the piston 220 is reduced, the service life of a product is prolonged, the lubricating part is simple in structure, oil does not need to be supplemented in a closed cavity, the water tank can be used for a long time, and the lubricating effect is good.
The structure of the present embodiment will now be explained. Specifically, the water tank on the toilet bowl provided in this embodiment is placed in the hydraulic pressure energy storage mechanism 200 of the toilet bowl.
In the hydraulic pressure accumulating mechanism 200, the tank case is composed of a cylinder block 250 and a piston cylinder 210. The hydraulic accumulator mechanism 200 includes a cylinder block 250, a piston cylinder 210, a piston 220, a bracket 260, and a deadbolt assembly 270. The cylinder block 250 is provided with a water inlet 251, a water outlet 252, and a sealing rod 253 axially provided, and the sealing rod 253 is provided with a first piston rod hole 254 at the axial center thereof.
The piston cylinder 210 is provided with a piston guide 211 in the axial direction. The upper end of the cylinder body base 250 is open, the lower end of the piston cylinder 210 is open, and the cylinder body base 250 and the piston cylinder 210 are axially connected at respective openings, so that the insides of the cylinder body base 250 and the piston cylinder 210 are matched together to form a space for containing tap water.
The piston 220 is arranged in the piston cylinder 210, and the outer wall of the piston 220 is connected with the inner wall of the piston cylinder 210 in a sliding way. A cavity with an opening is arranged on the end surface of the piston 220 far away from the cylinder body seat 250, a sealing cover 231 is arranged at the opening of the cavity, and the cavity and the sealing cover 231 form an oil storage bin 230. A through hole is formed in the sealing cover 231, and the oil delivery brush 240 is led out from the oil storage bin 230 through the through hole until the smearing end of the oil delivery brush abuts against the inner wall of the piston cylinder 210. When the piston 220 moves axially relative to the piston cylinder 210, the smearing end of the oil delivery brush 240 smears the inner wall surface of the piston cylinder 210 with lubricating oil. The piston 220 is further provided with a piston rod 221, one end of which is provided with a pressing block 222 and the other end of which is provided with a guide cylinder 223.
Due to the water tank arrangement convention, the piston cylinder 210 and the piston 220 are generally vertically disposed. At this time, a plurality of oil storage bins 230 and a plurality of oil transfer brushes 240 corresponding to the number of the oil storage bins 230 may be provided, and the plurality of oil storage bins 230 and the oil transfer brushes 240 may be uniformly distributed along the circumferential direction of the piston 220. Meanwhile, the oil transportation brush 240 can extend into the lowest point of the vertical height in the oil storage bin 230 and further extend into the lowest point of the oil storage bin 230, which is beneficial to fully using the lubricating oil in the oil storage bin 230. The bracket 260 is axially connected with the lower end of the cylinder block 250, a power slider 261 and a slider lock base 262 are arranged in the bracket 260, a bolt hinge base 263 and a spring base 265 are arranged on the slider lock base 262, and a spring hole 264, a lock groove 266 and a second piston rod hole 267 are arranged on the power slider 261.
The latch bolt assembly 270 is disposed within the slider lock seat 262 of the bracket 260. The locking tongue assembly 270 is composed of a locking tongue 271, a wedge 272 and a first spring 281, the wedge 272 is a strip with a slope 273 at one end and a buckle 274 at the other end, the locking tongue 271 is hinged on a locking tongue hinge seat 263 of the sliding block lock seat 262, the wedge 272 is arranged in the sliding block lock seat 262, and the first spring 281 is arranged between the wedge 272 and a spring seat 265 of the sliding block lock seat 262.
One end of the piston rod 221, which is provided with the pressing block 222, passes through the first piston rod hole 254 of the sealing rod 253 and the second piston rod hole 267 of the power slider 261, and the other end of the piston rod, which is provided with the guide cylinder 223, is sleeved with the sealing rod 253 of the cylinder block 250.
A second spring 282 is provided between the guide cylinder 223 of the piston 220 and the piston guide cylinder 211 of the piston cylinder 210. A third spring 283 is provided between the end surface of the first piston rod hole 254 of the cylinder block 250 and the spring hole 264 of the power slider 261.
The present embodiment can be used in connection with a suction device of a toilet, and taking the suction device 100 with lubrication in embodiment 2 as an example, the pull rope 124 of the suction device 100 is connected to the power slider 261 of the present embodiment through the pulley 300. A drain valve is connected to the drain port 252 of the embodiment, a water inlet valve is connected to the water inlet 251, a drain button is arranged on the drain valve, and a switch of the water inlet valve and a closing control rod of the drain valve are installed at a limit position of a stroke of the power slider 261 of the bracket 260, wherein the working process of the embodiment is as follows:
and (3) washing process: when the water discharge button of the toilet bowl is manually pressed, the water discharge valve on the water discharge port 252 is opened, water in the piston cylinder 210 is discharged from the water discharge port 252, the acting force of the water on the piston 220 disappears along with the discharge of the water in the piston cylinder 210, the piston 220, the piston rod 221 and the pressing block 222 descend in the piston cylinder 210, the first piston rod hole 254 of the sealing rod 253 and the second piston rod hole 267 of the power sliding block 261 under the action of the second spring 282, at the moment, the oil delivery brush 240 arranged on the oil storage bin 130 in the piston 220 abuts against the inner wall of the piston cylinder 110 to move downwards, the lubricating oil on the oil delivery brush 240 is coated on the inner wall of the piston cylinder 210, in the process, the power sliding block 261 is static, and the pressing block 222 begins to be separated from the power sliding block 261. When the pressing piece 222 touches the lock catch 274 of the wedge 272, the wedge 272 moves downward in the slider lock seat 262 against the resistance of the first spring 281 until the inclined surface 273 of the wedge 272 reaches the position of the lock tongue 271, at which time the piston 220, the piston rod 221, the pressing piece 222 and the wedge reach the limit position, and the lock tongue 271 hinged on the lock tongue hinge seat 263 is disengaged from the lock groove 266 of the power slider 261. Under the action of the third spring 283, the power slider 261 slides downward in the holder 260, and at this time, the power slider 261 pulls the pulling rope 124 of the suction device 100 to start working. Because the switch of the water inlet valve and the closing control rod of the water discharge valve are arranged at the stroke limit position of the power slide block 261, when the power slide block 261 slides downwards to the limit position, the suction device 100 finishes suction and pollution discharge work on the toilet; meanwhile, the power slider 261 touches the switch of the water inlet valve and the closing control lever of the water outlet valve to close the water outlet valve and simultaneously open the water inlet valve, and tap water supplies water to the piston cylinder 210 through the water inlet 251 of the cylinder body base 250.
Resetting: when the water inlet valve opens tap water to supply water to the piston cylinder 210 through the water inlet 251 of the cylinder body seat 250, the water acting on the lower surface of the piston 220 presses the piston 220, the piston rod 221 and the pressing block 222 move upwards in the piston cylinder 210 by overcoming the resistance of the second spring 282, and at the moment, the oil conveying brush 240 arranged on the oil storage bin 130 in the piston 220 pushes against the inner wall of the piston cylinder 110 to move upwards, so that lubricating oil on the oil conveying brush 240 is coated on the inner wall of the piston cylinder 210; at the same time, the pressing block 222 drives the power slider 261 to slide upwards in the bracket 260 by overcoming the resistance of the third spring 283. When the lock groove 266 of the power slider 261 slides to the position where the lock tongue 271 is reset, the press block 222 is separated from the lock catch 274 of the wedge 272, and the wedge 272 moves upwards in the slider lock seat 262 under the action of the first spring 281 until the inclined surface 273 of the wedge 272 surpasses the position of the lock tongue 271, so that the lock tongue 271 is pressed into the lock groove 266 of the power slider 261; the latch 271 hinged to the latch hinge base 263 is locked with the locking groove 266 of the power slider 261 again, so that the power slider 261 is locked with the bracket 260, the piston 220 and the power slider 261 are all reset, and one working cycle is finished.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (9)
1. A sliding structure with lubrication is characterized by comprising a shell, a sliding part and a lubrication part, wherein the sliding part is arranged in the shell and moves axially relative to the shell, and the axial movement is realized by the sliding connection between the outer wall of the sliding part and the inner wall of the shell;
the lubricating part comprises an oil conveying brush and an oil storage bin arranged on the sliding part, lubricating oil is stored in the oil storage bin, the painting end of the oil conveying brush is abutted to the inner wall of the shell, the oil conveying part penetrates through the bulkhead of the oil storage bin and extends into the oil storage bin, and the oil conveying brush is used for being permeated by the lubricating oil and smearing the lubricating oil on the inner wall of the shell during axial movement.
2. The sliding motion structure with lubrication according to claim 1, wherein a cavity having an opening is provided on an axial end surface of the sliding member, a seal cover is provided on the opening of the cavity, and the cavity and the seal cover form the oil storage bin;
the sealing cover is provided with a through hole for the oil conveying brush to penetrate through.
3. The sliding structure with lubrication according to claim 1, wherein when the cross section of the inner wall of the housing along the axis thereof has the highest point, all the highest points of the cross section of the inner wall of the housing along the axis thereof constitute an application area of the oil transfer brush, and the application end of the oil transfer brush abuts against the application area.
4. The sliding motion structure with lubrication of claim 1, wherein a plurality of the oil delivery brushes are provided, and the application ends of the plurality of oil delivery brushes are radially and uniformly distributed along the inner wall of the housing.
5. The sliding motion structure with lubrication of claim 1, wherein the cross-section of the inner wall of the housing along its axis and the cross-section of the outer wall of the sliding member along its axis are both circular.
6. The sliding motion structure with lubrication of claim 1, wherein the oil transfer brush extends into the lowest point of vertical height in the oil storage bin.
7. The sliding motion structure with lubrication of claim 1, wherein the oil delivery brush is made of wool felt.
8. A suction device with lubrication comprises a shell seat, a piston cylinder and a piston, wherein the shell seat is axially provided with a sewage discharge outlet and radially provided with a sewage drainage channel; characterized in that the suction device is provided with a sliding structure with lubrication according to any one of claims 1 to 7, the housing is the piston cylinder, and the sliding member is the piston.
9. A water tank on toilet bowl, includes water tank shell and piston, be equipped with water inlet and delivery port on the water tank shell, piston axial sliding connect in the water tank shell, just the piston will water tank shell inner chamber divide into epicoele and cavity of resorption, the water inlet with the delivery port all communicates the cavity of resorption, its characterized in that, be equipped with the sliding construction with lubrication according to any one of claims 1 to 7 on the water tank, the casing does the water tank shell, the slider is the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082899.2A CN113775911A (en) | 2021-09-15 | 2021-09-15 | Sliding structure with lubrication, suction device and water tank on toilet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111082899.2A CN113775911A (en) | 2021-09-15 | 2021-09-15 | Sliding structure with lubrication, suction device and water tank on toilet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113775911A true CN113775911A (en) | 2021-12-10 |
Family
ID=78844270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111082899.2A Pending CN113775911A (en) | 2021-09-15 | 2021-09-15 | Sliding structure with lubrication, suction device and water tank on toilet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113775911A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042900U (en) * | 1988-08-25 | 1989-08-16 | 王东军 | Oil-storing lubrication device for inflator |
| CN2352804Y (en) * | 1998-12-16 | 1999-12-08 | 无锡市永大企业制造有限公司 | Lubricant apparatus for forming composite tube |
| CN202384099U (en) * | 2011-12-22 | 2012-08-15 | 铜陵精工里亚特种线材有限公司 | Online lubricating liquid coating device for enameled wire |
| CN103438340A (en) * | 2013-08-10 | 2013-12-11 | 广东万联包装机械有限公司 | Lubricating mechanism for transverse cutting machine cutters |
| CN106049638A (en) * | 2015-10-23 | 2016-10-26 | 顾国清 | Pumping and dirt discharging device of closestool |
| CN106168051A (en) * | 2015-10-27 | 2016-11-30 | 顾国清 | The hydraulic pressure accumulating mechanism of toilet |
| CN206763851U (en) * | 2017-05-04 | 2017-12-19 | 成都浩益科技有限公司 | A kind of Pneumatic hydraulic hand riveter |
| CN211027731U (en) * | 2019-11-26 | 2020-07-17 | 济南煜宏锻造机械股份有限公司 | Punch guide mechanism of punching press |
-
2021
- 2021-09-15 CN CN202111082899.2A patent/CN113775911A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042900U (en) * | 1988-08-25 | 1989-08-16 | 王东军 | Oil-storing lubrication device for inflator |
| CN2352804Y (en) * | 1998-12-16 | 1999-12-08 | 无锡市永大企业制造有限公司 | Lubricant apparatus for forming composite tube |
| CN202384099U (en) * | 2011-12-22 | 2012-08-15 | 铜陵精工里亚特种线材有限公司 | Online lubricating liquid coating device for enameled wire |
| CN103438340A (en) * | 2013-08-10 | 2013-12-11 | 广东万联包装机械有限公司 | Lubricating mechanism for transverse cutting machine cutters |
| CN106049638A (en) * | 2015-10-23 | 2016-10-26 | 顾国清 | Pumping and dirt discharging device of closestool |
| CN106168051A (en) * | 2015-10-27 | 2016-11-30 | 顾国清 | The hydraulic pressure accumulating mechanism of toilet |
| CN206763851U (en) * | 2017-05-04 | 2017-12-19 | 成都浩益科技有限公司 | A kind of Pneumatic hydraulic hand riveter |
| CN211027731U (en) * | 2019-11-26 | 2020-07-17 | 济南煜宏锻造机械股份有限公司 | Punch guide mechanism of punching press |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110337518B (en) | Toilet cistern and cistern piston pull rod, hydraulic control valve | |
| CN100344882C (en) | Gas-oil pressure converter | |
| CN113775911A (en) | Sliding structure with lubrication, suction device and water tank on toilet | |
| CA2285328C (en) | Self-lubricating fluid cylinder | |
| US20230417036A1 (en) | Pneumatic valve control device | |
| CN101349295A (en) | Hydraulic pump master cylinder of car clutch | |
| CN115788860A (en) | Building engineering waterproof equipment | |
| CN214119641U (en) | Lubricating pump | |
| US20080286120A1 (en) | Reciprocating piston pump operating on pressure medium | |
| CN201582543U (en) | Lubricant refilling device | |
| CN113775013B (en) | Novel water pressure energy storage mechanism | |
| CN201427094Y (en) | Airless spraying unit | |
| CN2225583Y (en) | Spring isolation safety valve | |
| CN219692906U (en) | Pressure type adjustable metering valve | |
| CN201909101U (en) | Hydraulic time delay water feed valve | |
| CN213072377U (en) | Automatic vacuum oil filling equipment for producing oil filling type deep well pump motor | |
| CN214092173U (en) | High-efficient long-life three-cylinder high pressure plunger pump | |
| CN212027732U (en) | Sucker rod blowout prevention box | |
| CN114352914B (en) | Device and method for collecting and recycling overflowed grease of transmission bearing | |
| CN109015348B (en) | Integrally-formed oil return hole machining-free guider | |
| CN113775012B (en) | Flushing device for toilet | |
| CN218440915U (en) | Hydraulic control automatic opening and closing one-way valve | |
| US11873630B2 (en) | Pneumatic valve control device | |
| CN218152009U (en) | Lubricating structure of linear sliding rail | |
| CN201221513Y (en) | Multifunctional gas-liquid pressurizing cylinder with gas and oil isolation, automatic exhaust and automatic oil compensating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211210 |