CN209450423U - A kind of lavatory lid slow descending mechanism - Google Patents

Abstract

The utility model relates to a kind of lavatory lid slow descending mechanisms, including casing assembly, shaft and piston, which is characterized in that the piston is equipped with perforation internal piston and external logical oil groove, leads to and is equipped with unidirectional valve collar in oil groove；The shaft includes shaft ontology and shaft back segment, and the shaft ontology includes the footstalk for being fixedly connected with one of pivotal part and fixing piece and the drive section for driving piston opposite shell component helical rotation；The shaft back segment center is equipped with oil-through-hole, and the shaft back segment includes cylindrical section and transition, and cylindrical section is equipped with the excessively oily pore of connection drive section, and transition crosses hydraulic fluid port equipped with connection oil-through-hole.Using the above structure, the implementable segmented to cover board dropping process of the utility model controls, and lavatory lid can be made so that cover board is damaged and generate noise during hurtling down and hurtling down.

Description

A kind of lavatory lid slow descending mechanism

Technical field

The utility model relates to bathroom field more particularly to a kind of lavatory lid slow descending mechanisms.

Background technique

Different use environments and different use habits determine selection of the client for damper product damping parameter It is different.Existing adjustable damping device is to add damping regulating part on the basis of conventional damper structure mostly, in this way Substantially it can solve the demand contradictory of different clients, however, but simultaneously but also the structure of damper product is more complicated, cost It is higher, and the length of product is increased, volume becomes larger.

Utility model content

The first of the utility model is designed to provide a kind of lavatory lid slow descending mechanism, can be to the decline of lavatory lid The control of implementation Process segmented, allows lavatory lid to hurtle down and mute.

The second of the utility model is designed to provide a kind of lavatory lid slow descending mechanism so that customization has different damping The slow descending mechanism of parameter becomes to be more easier.

To achieve the goals above, the technology employed by the present utility model is

A kind of lavatory lid slow descending mechanism, including casing assembly, shaft and piston, wherein the piston is equipped with perforation and lives Inside and outside logical oil groove is filled in, leads to and is equipped with unidirectional valve collar in oil groove；The shaft includes shaft ontology and shaft back segment, institute The shaft ontology stated includes footstalk for being fixedly connected with one of pivotal part and fixing piece and for driving piston opposite shell The drive section of component helical rotation；The shaft back segment center be equipped with oil-through-hole, the shaft back segment include cylindrical section and Transition, and cylindrical section is equipped with the excessively oily pore of connection drive section, transition crosses hydraulic fluid port equipped with connection oil-through-hole.

Preferably, the casing assembly is cylindrical chamber open at one end, closed at one end and with a central axis, should Internal screw thread is equipped in cavity；The shaft is injected in cavity and is sealed with the open end of cavity；The piston is equipped with external screw thread, and should Piston is set in shaft by a centre bore and is set in cavity, and the female thread of external screw thread and cavity is at the matching relationship that is screwed on And the cavity of sealing is divided into the first chamber and second chamber of filling damping oil.

Preferably, the shaft ontology and shaft back segment are seperated molding.

Preferably, the transition is that maximum outside diameter is connected no more than the flat part of cylindrical section by transitional surface and cylindrical section It connects.

Preferably, the transition is that undergauge section is connect by transitional surface with cylindrical section.

Preferably, the cylindrical section free end sets several excessively oily strias, and the cylindrical section free end and shaft ontology are logical Interference fit is riveted together, and forms oily pore.

Preferably, the unidirectional valve collar is the ring bodies that can produce plastic deformation that cross section is " V " type.

Slow descending mechanism using the above scheme, lavatory lid is in the first half term of the process of lifting, unidirectional valve collar and piston space Oil-gap was formed, the damping oil in piston exterior space is mainly flowed by logical oil groove to the inner space of piston, hinders mud at this time The resistance that oil is subject to is smaller, and lavatory lid lifting is easy；Lavatory lid is in the second half of the process of lifting, piston and shaft back segment Between gap be gradually increased, the damping oil in piston exterior space can be by between excessively oily through slot and piston and shaft back segment Gap is flowed to the inner space of piston, and the resistance that resistance mud oil is subject at this time is smaller, and lavatory lid lifting is more easier；Work as closestool In the first half term of the process of decline, unidirectional valve collar is bonded with shell and piston without oil-gap excessively, the resistance in internal piston space cover board Buddhist nun's oil is flowed by gap between piston and shaft back segment to the exterior space of piston, hinder at this time resistance that mud oil is subject to compared with Small, lavatory lid decline is easy；When rear journey of the lavatory lid in the process of decline, piston is mobile to one end of cylindrical section, and lives Gap between plug and cylindrical section is smaller and smaller, at this point, the resistance that damping oil is subject to is increasing, lavatory lid, which slows down, to fall, Until damping oil relied primarily on oily pore through oil-through-hole and crossed hydraulic fluid port to the flowing of the exterior space of piston, at this point, lavatory lid The resistance being subject to is maximum, and lavatory lid slowly lands.

The utility model compared with prior art, has the advantages that

1. shaft back segment includes cylindrical section and transition, implements to control the segmented of cover board dropping process, horse can be made Cover plate hurtles down, but be avoided that hurtle down during so that cover board is damaged and generate noise.

2. shaft ontology and shaft back segment are seperated molding, in this way, shaft ontology and shaft back segment can be respectively adopted not With material molding, as shaft ontology the material with high-strength characteristic can be used and can be used if shaft back segment have it is higher at The material of type precision not only can make the production of shaft back segment more accurate controllable, effectively promote the qualification rate of product, And shaft ontology can have the shaft back segment of different parameters specification to meet the needs of different clients with wildcard.

3. shaft back segment may be designed to different damping parameter, it is replaced use to facilitate, in this way, can avoid using resistance Buddhist nun's regulating part makes product have better reliability and stability, while the miniaturization of product size can also be made to be guaranteed.

Detailed description of the invention

Fig. 1 is the overall structure of the explosion figure of the utility model.

Fig. 2 is the stereochemical structure diagram of the shaft back segment of the utility model.

Fig. 3 is the shaft back segment cross-section structure diagram of the utility model.

Fig. 4 is the stereochemical structure diagram of the shaft ontology of the utility model.

Fig. 5 is the cross-section structure diagram of the shaft ontology of the utility model.

Fig. 6 is the shaft stereochemical structure diagram of the utility model.

Fig. 7 is that the utility model is applied to lavatory lid, and cross-sectional schematic of lavatory lid during lifting.

Fig. 8 is the shaft end face figure of corresponding diagram 7.

Fig. 9 is that the utility model is applied to lavatory lid, and lavatory lid is in the cross-sectional schematic of decline process original state.

Figure 10 is the shaft end face figure of corresponding diagram 9.

Figure 11 is that the utility model is applied to lavatory lid, and lavatory lid section of half way state in decline process shows Figure.

Figure 12 is the shaft end face figure of corresponding diagram 11.

Figure 13 is that the utility model is applied to lavatory lid, and cross-sectional schematic of the lavatory lid in slow landing.

Figure 14 is the shaft end face figure of corresponding diagram 13.

In figure,

12 flange of casing assembly 1 shell, 11 rear cover, 111 internal screw thread 112

21 shaft back segment of limit hole 121 shaft, 2 shaft ontology, 22 footstalk 211

212 flange of drive section, 214 gasket, 201 sealing ring 202

232 round rod segment of external thread section, 233 sealing ring, 5 oil-through-hole 220

The excessively oily pore 2210 of 221 transition 222 of cylindrical section crosses hydraulic fluid port 2221

Cross 3 external screw thread of oily 2211 piston of stria, 31 first chamber A

Second chamber B leads to the unidirectional valve collar 4 of oil groove 310.

Specific embodiment

Below with reference to attached drawing, the technical solution of the utility model and beneficial effect are described in detail.

As shown in Figure 1, a kind of lavatory lid slow descending mechanism, including casing assembly 1, shaft 2 and piston 3.

Wherein, which includes columnar shell 11 and rear cover 12, wherein one end of shell 11 has inside The flange 111 that side extends, the other end is fixedly connected with rear cover 12, and the inside of shell 11 is at least partly equipped with internal screw thread 112, after The bottom centre of lid 12 is equipped with circular limit hole 121.Shell 11 and rear cover 12 form open at one end, closed at one end and have one The cylindrical chamber of central axis.

As shown in Figures 2 to 6, which injects in cavity from the rear end of shell 11 and keeps close with the open end of cavity Envelope.Specifically, which includes shaft ontology 21 and shaft back segment 22, and the molding seperated with shaft ontology 22 of shaft back segment 21. The shaft ontology 21 includes footstalk 211 for being fixedly connected with one of pivotal part and fixing piece and for driving piston 3 opposite The drive section 212 of 1 helical rotation of casing assembly is equipped with one and outward extends flange 214 between footstalk 211 and drive section 212.It should The top of flange 214 sets gasket 201, and lower part sets sealing ring 202 and the open end of cylindrical chamber forms sealed connection.

The shaft back segment 22 includes cylindrical section 221 and transition 222, and as a kind of better embodiment, transition 222 can The flat part for being no more than cylindrical section 221 for maximum outside diameter is connect by transitional surface with cylindrical section 221, it is also possible that outer diameter is than circle The small undergauge section of shell of column 221 is connect by transitional surface with cylindrical section 221, and specific implementation form is unlimited, the other end of transition 222 It protrudes into limit hole 121.Cylindrical section 221 is equipped with the excessively oily pore 2210 of connection oil-through-hole 220, and transition 222, which is equipped with, to be connected The hydraulic fluid port 2221 excessively of oilhole 220 all.Specifically, 221 free end of cylindrical section sets several excessively oily strias 2211, shaft ontology 21 212 free end of drive section has a mounting hole 2120, and the mounting hole 2120 and cylindrical section 221 have several excessively oily strias 2211 Free end docking, 221 free end of cylindrical section and shaft ontology 21 are riveted together by interference fit, form oily pore 2210。

The piston 3 is equipped with external screw thread 31, and the piston 3 is set in shaft 2 by a centre bore 30 and is set to cavity Interior, the internal screw thread 112 of external screw thread 31 and cavity, which is formed, to be screwed on matching relationship and the cavity of sealing is divided into filling damping oil First chamber A and second chamber B.The inside and outside logical oil groove of perforation piston 31 is equipped between piston 31 and casing assembly 1 310, lead to and is equipped with unidirectional valve collar 4 in oil groove 310.The unidirectional valve collar 4 uses plastic molding, has certain elastic deformation, horizontal Section is " V " type.

The damper course of work of above structure is as follows:

Slow descending mechanism using the above scheme, as shown in Figure 7 and Figure 8, lavatory lid be lifted process first half term when, Piston 3 moves from left to right, at this point, forming oil-gap, 3 exterior space of piston -- the first space between unidirectional valve collar 4 and piston 3 The damping oil of A hinders the resistance that mud oil is subject to mainly by logical oil groove 310 to the inner space of piston 3 -- second space B flows at this time Power is smaller, and lavatory lid lifting is easy；Lavatory lid lifting process the second half, piston 3 continuation move from left to right, piston Gap between 3 and 2 second half section of shaft is gradually increased, and the damping oil of 3 exterior space of piston can pass through logical oil groove 310 and piston 3 It with the gap between shaft back segment 22, is flowed to the inner space of piston 3, the resistance that resistance mud oil is subject at this time is smaller, toilet lid Plate lifting is more easier.

When first half term of the lavatory lid in the process of decline, as shown in Figure 9 and Figure 10, piston 3 moves from right to left, this When, unidirectional valve collar 4 is bonded without oil-gap is crossed with shell 11 and piston 3, and the damping oil of 3 inner space of piston -- second chamber B is logical Cross exterior space of the gap between piston 3 and shaft back segment 22 to piston -- first chamber A flowing hinders what mud oil was subject at this time Resistance very little, lavatory lid decline are easy；When the second half of lavatory lid in the process of decline, the continuation of piston 3 moves from right to left It is dynamic, and the gap between piston 3 and cylindrical section 221 is smaller and smaller, hindering the resistance that mud oil is subject at this time becomes larger, lavatory lid decline Speed slows down, as is illustrated by figs. 11 and 12;When piston motion to the leftmost side, damping oil passed through oily pore 2210, through oil-through-hole 220 flow to the exterior space of piston 3, at this point, the resistance that damping oil is subject to is maximum, toilet lid board group is slowly landed, such as Figure 13 With shown in Figure 14.

In above process, shaft back segment 22 may be designed to different damping parameter, be replaced use to facilitate, this Sample can avoid making product have better reliability and stability, while can also make the small of product size using damping regulating part Type is guaranteed.

Above embodiments are only to illustrate the technical idea of the utility model, and the protection model of the utility model cannot be limited with this Enclose, it is all according to the utility model proposes technical idea, any improvement done on the basis of technical solutions and equivalent replacement, It each falls within scope of protection of the utility model.

Claims (7)

1. a kind of lavatory lid slow descending mechanism, including casing assembly, shaft and piston, which is characterized in that the piston is equipped with and passes through Logical internal piston and external logical oil groove, lead to and are equipped with unidirectional valve collar in oil groove；After the shaft includes shaft ontology and shaft Section, the shaft ontology include footstalk for being fixedly connected with one of pivotal part and fixing piece and for driving piston opposite The drive section of casing assembly helical rotation；The shaft back segment center is equipped with oil-through-hole, and the shaft back segment includes cylinder Section and transition, and cylindrical section is equipped with the excessively oily pore of connection drive section, transition crosses hydraulic fluid port equipped with connection oil-through-hole.

2. a kind of lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the casing assembly is opened for one end Mouth, cylindrical chamber closed at one end and with a central axis, the cavity is interior to be equipped with internal screw thread；The shaft inject cavity in and with The open end of cavity seals；The piston is equipped with external screw thread, and the piston is set in shaft by a centre bore and is set to cavity Interior, the cavity of sealing matching relationship and is divided into the first of filling damping oil at being screwed on by the female thread of external screw thread and cavity Chamber and second chamber.

3. a kind of lavatory lid slow descending mechanism as described in claim 1, which is characterized in that after the shaft ontology and shaft Section is seperated molding.

4. a kind of lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the transition is maximum outside diameter Flat part no more than cylindrical section is connect by transitional surface with cylindrical section.

5. a kind of lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the transition is logical for undergauge section Transitional surface is crossed to connect with cylindrical section.

6. a kind of lavatory lid slow descending mechanism as described in claim 1, which is characterized in that if the cylindrical section free end is set Oily stria was done, the cylindrical section free end and shaft ontology are riveted together by interference fit, form oily pore.

7. a kind of lavatory lid slow descending mechanism as described in claim 1, which is characterized in that the unidirectional valve collar is cross section For the ring bodies that can produce plastic deformation of " V " type.