CN110368611A - A kind of multi-layer filtrating equipment and oxygen self-rescuer of respirator - Google Patents

Abstract

The invention discloses a kind of multi-layer filtrating equipment of respirator and the oxygen self-rescuer of above-mentioned multi-layer filtrating equipment is contained, belongs to emergency and rescue equipment technical field.A kind of multi-layer filtrating equipment of respirator includes at least internal layer filter house and outer filter portion；It further include having the current divider being arranged between air bag and respirator, current divider includes the exhalation passages being independently arranged and channel venting one's pent-up feelings；Respirator passes sequentially through channel venting one's pent-up feelings, internal layer filter house, outer filter portion are communicated with air bag and air bag by current divider is directly communicated with respirator.Technical solution of the present invention specifically embodies a kind of device with multi-layer filtrating equipment.This device has the function of filtering, can thus mitigate the harm of dust bring to a certain extent.In order to increase the channel that the effect of filtering increases several layers of filterings more.Simultaneously design structure design on the space of filter interior is cleverly utilized, although increasing the component of filtering, volume there is no increase how much.

Description

A kind of multi-layer filtrating equipment and oxygen self-rescuer of respirator

Technical field

The invention belongs to emergency and rescue equipment technical fields, refer in particular to the multi-layer filtrating equipment of respirator and contain State a kind of oxygen self-rescuer of multi-layer filtrating equipment.

Background technique

Currently, oxygen self-rescuer is that one kind enters well personnel in underground fire, gas, coal-dust explosion, coal and gas to occur prominent A kind of portable respiratory protection utensil of poisonous gas poisoning or anoxia asphyxia is prevented when out.Self-rescuer is a kind of volume The equipment of small, light-weight portable protection personal breathing organ.

But current oxygen self-rescuer is in actual use, general step is:

1, Special waistband is penetrated into self-rescuer leather belt buckle, is fixed on back loins.

2, before self-rescuer is first gone to abdomen when using, proficiency backing, the other hand pulls open Sealing strap.

3, remove upper outer tank, portable headband abandons lower outer tank after extracting self-rescuer out.

4, headband is worn, puts air bag in order.

5, mouth tool plug is pulled out, starting oxygen candle (if oxygen candle starting failure, has by mouth to medicinal cupping expiration after answering deep air-breathing rapidly To force raw oxygen).

6, mouth tool is put into mouth, mouth tool piece is placed between lips and teeth, and tooth tooth clinching pad is clamped the nose with nose clip pad, opened Beginning uses mouth breathing.

7, disaster area is quickly withdrawn in even breathing.

In above-mentioned steps, it is envisaged that the use environment of oxygen self-rescuer is very severe.Due to being more underground Operation, ambient enviroment the inside often have many dust.But traditional oxygen self-rescuer lacks filter device, especially applies When mouth tool is breathed, even more increase the degree that dust enters human body.

Summary of the invention

Dust is lowered to the multiple filtration dress of the respirator of body effect by filtering the object of the present invention is to provide a kind of Set and include the oxygen self-rescuer of this multi-layer filtrating equipment.

The object of the present invention is achieved like this: a kind of multi-layer filtrating equipment of respirator, includes at least internal layer filter house With outer filter portion；It further include having the current divider being arranged between air bag and respirator, current divider includes exhaling of being independently arranged Gas channel and channel venting one's pent-up feelings；The respirator pass sequentially through the channel venting one's pent-up feelings, internal layer filter house, outer filter portion connection described in There is air bag and the air bag passes through current divider and is directly communicated with the respirator.

Preferably, the outside in the outer filter portion or upside include an outer layer built-up area, are arranged in outer layer built-up area There is filtering material；The inside or downside of the outer layer built-up area are communicated with the internal layer filter house.

Preferably, the internal layer filter house includes main tank body, and main tank body lower end forms air inlet area, sets on the inside of air inlet area It is equipped with internal layer built-up area, filtering material is provided in internal layer built-up area and is communicated with the internal layer airway.

Preferably, the air bag includes internal layer airway and balloon outer, and outer filter portion two sides connect respectively It is connected with the balloon outer and internal layer filter house, internal layer filter house is connected to the internal layer airway by current divider.

A kind of oxygen self-rescuer, the multi-layer filtrating equipment including a kind of respirator described in any of the above-described；Oxygen self-rescuer It further include upper housing and lower case；It is provided in the lower case including oxygen cylinder and respiratory system；The respiratory system is at least It include air bag, the air bag side is communicated with respirator.

Preferably, pressure reducing valve is arranged in the oxygen cylinder side, and pressure reducing valve side is provided with connection valve pocket；The air bag side It is provided with connecting sleeve, connection card is set on the outside of the connection valve pocket and the connecting sleeve outer sheath is equipped with clamping set.

Preferably, one end of the clamping set forms several valve card-tight parts, and the connection valve pocket side forms at least Side is clamped annular groove, and locking protrusion is arranged in described connecting sleeve one end, and the clamping annular groove is adapted to the locking protrusion and institute State the outside that card-tight part is set in the locking protrusion.

Preferably, the lower end of the respirator forms interconnecting piece, and the air bag upper end is provided with lower interconnecting piece, institute It states and is snapped connection between interconnecting piece and lower interconnecting piece by hoop component.

Preferably, the upper interconnecting piece and the lower interconnecting piece are bulge loops；The hoop component integrally formed with respectively with The upper Joining clasp and lower Joining clasp of the upper interconnecting piece and the lower interconnecting piece adaptation.

Preferably, the hoop component includes at least two sub-buckles, and each sub-buckle includes clip main body, clip One end of main body forms the pin thread other end and forms the female thread being adapted to the pin thread.

Preferably, described pin thread one end forms several clamping bars, and clamping bar one end protrusion has inclined surface and confined planes； The clamping groove for accommodating the female thread is formed between the clip main body and the confined planes.

The present invention is prominent and beneficial compared with prior art to be had the technical effect that

1, technical solutions according to the invention specifically embody a kind of device with multi-layer filtrating equipment.This device There is the function of filtering first, can thus mitigate the harm of dust bring to a certain extent.While in order to increase the effect of filtering Fruit increases the channel of several layers of filterings more.Thus further increase the effect of filtering.Design structure design simultaneously is upper ingenious The space of filter interior is utilized, although increasing the component of filtering, volume there is no increase how much.

Detailed description of the invention

Fig. 1 is structure diagram of the invention；

Fig. 2 is the structure diagram hidden after upper housing in Fig. 1；

Fig. 3 is the structure diagram hidden after lower case in Fig. 2；

Fig. 4 is the scheme of erection of mask and current divider

Fig. 5 is the scheme of erection of sub-buckle and current divider；

Fig. 6 is the structure diagram of sub-buckle；

Fig. 7 is the structure diagram of film loudspeaker；

Fig. 8 is gas circulation line road of the present invention schematic diagram；

Fig. 9 is the structure diagram of back buckle；

Figure 10 is the structure diagram of lower case；

Figure 11 is the structure diagram of multi-layer filtrating equipment；

Figure 12 be in Figure 11 A-A to structure diagram.

In figure: 1- upper housing；2- lower case；3- oxygen cylinder；4- air bag；5- mask；6- film loudspeaker；7- clamping set； 8- sub-buckle；9- multi-layer filtrating equipment；10- internal layer airway；11- current divider；12- exhalation passages；13- feels elated and exultant channel；14- back Button；15- connecting column；17- object placing cavity；18- is clamped axis；20- retention bead；21- card slot 31- pressure reducing valve；32- connection valve pocket；33- It is clamped annular groove；41- connecting sleeve；Interconnecting piece under 43-；The upper interconnecting piece of 51-；61- retainer plate；62- metal foil diaphragm；71- clamping Portion；The upper Joining clasp of 81-；Joining clasp under 82-；83- clip main body；84- pin thread；85- female thread；86- is clamped bar；87- inclination Face；88- confined planes；89- clamping groove；91- outer layer built-up area；92- filtering material；93- main tank body；94- internal layer built-up area.

Specific embodiment

The present invention is described further with specific embodiment below.

Embodiment one: as shown in figs. 1-12, a kind of oxygen self-rescuer, including upper housing 1 and lower case 2；The lower case 2 It is inside provided with including oxygen cylinder 3 and respiratory system；The respiratory system, which includes at least, air bag 4, and 4 side of air bag is communicated with Respirator.

The technical program specifically discloses a kind of structure type of oxygen self-rescuer.Breathing system described in the technical program System refers to other categories of the completion oxygen self-rescuer function in oxygen self-rescuer other than upper housing 1, lower case 2, oxygen cylinder 3 In the essential feature of the prior art.This generation oxygen self-rescuer belongs to the commonly used equipment in fire-fighting and downhole rescuing, relative theory And the explanation of respiratory system does not repeat.

Preferably, the respirator is mask 5, and the mask 5 is arranged in the upper housing 1.

The technical program specifically discloses a kind of structure type of respirator.By by respirator design at mask 5, In actual use, very convenient quick as long as the wearing of mask 5 is finished.And one is no longer needed for using mask 5 Directly mouth tool is contained in oral cavity, adverse reaction would not be caused again, and nose can also breathe freely at this time, be more in line with people Body habit.

Preferably, it is additionally provided with film loudspeaker 6 on the inside of the mask 5, film loudspeaker 6, which includes at least, to be had one for fixed The retainer plate 61 of type is provided with metal foil diaphragm 62 in retainer plate 61 and is realized by the mechanical oscillation of the metal foil diaphragm 62 It acoustic and amplifies.

The technical program specifically discloses a kind of skill of communication exchange that can also speak when using oxygen self-rescuer Art scheme.The working principle of film loudspeaker 6 described in the technical program is to select a retainer plate 61, then in retainer plate 61 layer overlay films in the mouth can be normal without containing foreign matter then just because of having used above-mentioned mask 5 as respirator Pronunciation.In actual use, the effect realizing acoustic and amplifying as long as opposite film loudspeaker 6 is spoken.Film amplifies Device 6 belongs to the prior art, and specific structure can refer to [Chinese invention, Chinese invention authorization] CN201080033707.2 taper Loudspeaker.

Preferably, pressure reducing valve 31 is arranged in 3 side of oxygen cylinder, and 31 side of pressure reducing valve is provided with connection valve pocket 32；It is described 4 side of air bag is provided with connecting sleeve 41, and the setting of connecting sleeve 41 is in 32 outside of connection valve pocket and the connecting sleeve 41 Outer sheath is equipped with clamping set 7.

The technical program specifically discloses a kind of technical solution for reinforcing connection type between pressure reducing valve 31 and air bag 4. Both traditional connection is purely needed with closely connection is realized in socket cooperation between connection valve pocket 32 and connecting sleeve 41.But Such connection is often in actual use since the change in location of air bag 4 causes to loosen.

The technical program has been further added by a clamping set 7 on the basis of traditional socket, and then being capable of the company of further increasing It connects cutting ferrule 41 and connects the tightness degree connected between valve pocket 32.In actual use, generally clamping first can be covered into 7 companies of being sleeved on The side for connecing valve pocket 32 covers 7 toward 41 side of connecting sleeve when connection valve pocket 32 is outer, then clamping when 41 sets of connecting sleeve It moves, and then realizes clamping.The specifically size relationship about diameter between three belongs to business secret, does not repeat here.

Preferably, one end of the clamping set 7 forms several valve card-tight parts 71, and 32 side of connection valve pocket forms At least side is clamped annular groove 33, and described 41 one end of connecting sleeve is arranged locking protrusion, the clamping annular groove 33 with it is described locking convex It plays adaptation and the card-tight part 71 is set in the outside of the locking protrusion.

The technical program specifically discloses a kind of structure type of clamping set 7.In actual use, when it is locking protrusion and The cooperation of clamping annular groove 33 between the two has been able to increase the firmness connected between the two.Utilizing card-tight part 71 simultaneously Setting, can use it can have the advantage of certain deformation quantity, as far as possible by clamping set 7 toward 41 side of connecting sleeve It moves, this makes it possible to the effects for realizing clamping to the greatest extent.

Preferably, the lower end of the respirator forms interconnecting piece 51, and 4 upper end of air bag is provided with lower interconnecting piece 43, it is snapped connection between the upper interconnecting piece 51 and lower interconnecting piece 43 by hoop component.

The technical program specifically discloses the connection type between a kind of respirator and air bag 4.It is traditional between the two Be by clip hoop it is good after, then with fastener two clips are fastenedly connected.But such connection type is often stayed One section out, and this section often pokes air bag 4 or prick into human body, has some potential safety problems to be more unfavorable for underground work Personnel safe escape.Therefore it needs to improve for connection type in the prior art.

And the technical program specifically discloses a kind of connection type for not needing fastener, this connection type will not be Connection also keeps one section after completing.It is attached using hoop component simultaneously it is also an advantage that being in actual terminal operation When, close-connected purpose can be realized as long as mutually fastening using hoop component, operation is very simple.And traditional fastening The mode of part connection also needs firmly to rotate in actual use, such low efficiency and complicated for operation.

Preferably, the upper interconnecting piece 51 forms connection bulge loop, and lower interconnecting piece 43 forms lower connection bulge loop, described Hoop component is integrally formed with the upper Joining clasp 81 and lower connection being adapted to respectively with the upper connection bulge loop and lower connection bulge loop Snap ring 82.

This technology specifically discloses the design of a kind of upper interconnecting piece 51 and lower interconnecting piece 43.The technical program passes through in card Upper Joining clasp 81 is formed on hoop component and lower Joining clasp 82 respectively corresponds and connects bulge loop and lower connection bulge loop in adaptation, in this way Design can allow in actual use connection bulge loop and lower connection bulge loop be respectively clamped into the same component, thus may be used It is even closer and stable with the connection that can be allowed between air bag 4 and respirator.

Preferably, the hoop component includes at least two sub-buckles 8, and each sub-buckle 8 includes clip main body 83, One end of clip main body 83 forms 84 other end of pin thread and forms the female thread 85 being adapted to the pin thread 84.

The technical program specifically discloses a kind of structure type of hoop component.Passed through by two identical sub-buckles 8 Respectively head and the tail can realize the effect of clip, such to design the difficulty that reduce assembly in actual use. And then it can help user that can quickly fasten quick use.In actual use, general hoop component is two sons 8 composition of button, the effect of convenience and the banding that can be realized.Of course for the air bag 4 and respirator for being adapted to various other specifications, It can be connected using multiple sub-buckles 8 by ending and be realized.

Preferably, described 84 one end of pin thread forms several clamping bars 86, and clamping 86 one end protrusion of bar has inclined surface 87 With confined planes 88；The clamping groove for accommodating the female thread 85 is formed between the clip main body 83 and the confined planes 88 89。

The technical program specifically discloses the structure type of a kind of pin thread 84 and female thread 85.The design of inclined surface 87 can Allow when being caught in clamping groove 89 can it is smooth；The cooperation of confined planes 88 and clamping groove 89 can allow female thread 85 firmly by card Tightly in clamping groove 89, such connection it is more stable.

Preferably, multi-layer filtrating equipment 9 is provided in the lower case 2, multi-layer filtrating equipment 9 is filtered including at least internal layer Portion and outer filter portion；Current divider 11 is additionally provided between the air bag 4 and respirator, current divider 11 includes to be independently arranged Exhalation passages 12 and channel venting one's pent-up feelings 13；The respirator passes sequentially through the channel venting one's pent-up feelings 13, internal layer filter house, outer filter portion There is air bag 4 described in connection and the air bag 4 passes through current divider 11 and is directly communicated with the respirator.

The technical program specifically discloses a kind of structure type of multiple filtration.In the present embodiment as an example with bilayer It is illustrated.In actual use, oxygen cylinder 3 is primarily due to be connected to air bag 4, at the same air bag 4 and respirator it Between be provided with current divider 11, the oxygen in oxygen cylinder 3 can initially enter air bag 4 at this time, then by current divider 11 in air bag 4 Enter respirator for exhalation passages 12 to the oxygen for user's breathing.Then the exhaust gas to spue in respirator can lead to The channel venting one's pent-up feelings 13 for crossing current divider 11 enters internal layer filter house, then enters back into outer layer after filtering together by internal layer filter house Filter house.Specifically as shown in figure 5, exhalation passages 12 and channel venting one's pent-up feelings 13 are in an interior grooves of current divider 11. As shown in figure 8, exhalation passages 12 and channel venting one's pent-up feelings 13 are two different mutually independent channels.

Preferably, the air bag 4 includes internal layer airway 10 and balloon outer 4, outer filter portion two sides point It is not communicated with the balloon outer 45 and internal layer filter house, internal layer filter house is connected to the internal layer airway by current divider 11 10。

The technical program specifically discloses a kind of design method of air bag 4.The air bag 4 of outer layer as much as possible can be held More oxygen is carried, and space can also be saved by folding plug in upper housing 1 when daily do not use.Exist simultaneously In air bag 4 when oxygen pneumatic deficiency, it can also guarantee pressure by reducing volume by pressuring gasbag 4.

Internal layer airway 10 is the pipeline for being directly connected to filter assemblies, and the exhaust gas of discharge passes through internal layer airway 10 and by peace and quiet tank can be entered after internal layer filter house, that is, enter the container for capableing of absorbing carbon dioxide It is interior.Then, the exhaust gas of discharge can reenter in air bag 4 by outer filter portion.Material is thus formed a circulations.And it protects Having demonstrate,proved the air in air bag 4 is as far as possible completely without dust or other impurities.

Such design is since powder is arranged in the material of the energy absorbing carbon dioxide inside current peace and quiet tank all graininess Last shape, and these impurity are easy to enter in air bag 4 by various pipelines, when people is anti-when sucking these air with dust And it can be harmful to the human body.Therefore such design can be further ensured that the health of user, avoid secondary injury.

Preferably, the outside in the outer filter portion or upside include an outer layer built-up area 91, in outer layer built-up area 91 It is provided with filtering material 92；The inside or downside of the outer layer built-up area 91 are communicated with the internal layer filter house.

The technical program body discloses a kind of structure type in outer filter portion.There are two types of the designs of outer layer built-up area 91 Mode, one is designs in upside.When design is at upside, as shown in figure 8, the shape of outer layer built-up area 91 is pie at this time. When exhaust gas comes out from internal layer filter house, quickly can just be arranged after filtering to air bag 4 from outer layer built-up area 91.

Another way is to design on the outside, as shown in figure 8, exhaust gas can be after one section of relatively long filtering at this time It is then exhausted from.Although the efficiency of such design exhaust is relatively low, in this way can be by more fully filtering, filter effect It can be more preferable.

Preferably, the internal layer filter house includes main tank body 93, and 93 lower end of main tank body forms air inlet area, in air inlet area Side is provided with internal layer built-up area 94, and filtering material is provided in internal layer built-up area 94 and is communicated with the internal layer airway 10.

The technical program specifically discloses a kind of structure type of internal layer filter house.Such structure design can allow useless Gas is discharged from position relatively on the lower, then adequately plays as far as possible with the absorbing material in peace and quiet tank during rising Effect.Such design structure is simple, and easy for installation is preferred structure design.

Preferably, one end of the air bag 4 is connected with current divider 11, and current divider 11 at least independently forms oxygen suction pipe It breathes out and manages with exhaust gas, exhaust gas exhalation pipe is connected with the internal layer airway 10；The oxygen suction pipe is communicated with balloon outer 4。

This technology division specifically discloses a kind of structure type of current divider 11.Current divider 11 described in the technical program Refer to that a kind of component that there can be at least two independent flow passages, runner above-mentioned are also a kind of path for air circulation, and It not merely refers to need substantive pipeline.The design of current divider 11 can will need the oxygen of incoming call to be directly connected in respirator, Then the exhaust gas of discharge is discharged at multi-layer filtrating equipment 9, thereby realizes recycling for separation and gas.

Preferably, it is detachably connected between the upper housing 1 and lower case 2 by back buckle 14；The upper end of the back buckle 14 Connecting column 15 is formed, the connecting hole being adapted to the connecting column 15 is formed on the outside of the upper housing 1；Under the back buckle 14 End forms object placing cavity 17, and clamping axis 18 is provided in object placing cavity 17；It is formed on the outside of the lower case 2 and the object placing cavity 17 The retention bead 20 of adaptation, forms in retention bead 20 and clamping groove 89 that the clamping axis 18 is adapted to.

The technical program specifically discloses the connection type between a kind of upper housing 1 and lower case 2.Such connection side Formula is simply clear, and retention bead 20 is caught in card slot 21 again after filling in connecting hole and thus may be used by back buckle 14 in actual use It is very simple clear to realize the function of clamping.The position of back buckle 14 is arranged in upper housing 1 and lower case 2 the application simultaneously The position of junction again up.It is such design be it is more stable in order to what is in actual use, be able to use, meet human body work Cheng Xue principle.

Embodiment two: the present embodiment and embodiment one are almost the same, the difference lies in that the respirator is using mouth tool Form.It only needs to have in mouth when use and fills in mouth and contain.

Embodiment three: the present embodiment and embodiment one are almost the same, the difference lies in that multilayer mistake described in the present embodiment Filter device 9 can be the structure type of three layers He four layers of filter assemblies.Concrete implementation mode is in the outside of outer layer filter house Whole one layer of set again, can also cover one layer again if necessary, so that the S-shaped design of runner of whole exhaust gas.

Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.

Claims (10)

1. a kind of multi-layer filtrating equipment of respirator includes at least internal layer filter house and outer filter portion；It is characterized in that, also wrapping The current divider (11) being arranged between air bag (4) and respirator is included, current divider (11) includes the exhalation passages being independently arranged (12) and channel venting one's pent-up feelings (13)；The respirator passes sequentially through the channel venting one's pent-up feelings (13), internal layer filter house, company, outer filter portion There is air bag (4) described in logical and the air bag (4) passes through current divider (11) and is directly communicated with the respirator.

2. a kind of multi-layer filtrating equipment of respirator according to claim 1, it is characterised in that: the outer filter portion Outside or upside include an outer layer built-up area (91), are provided with filtering material (92) in outer layer built-up area (91)；The outer layer The inside or downside of built-up area (91) are communicated with the internal layer filter house.

3. a kind of multi-layer filtrating equipment of respirator according to claim 1 or 2, it is characterised in that: the internal layer filtering Portion includes main tank body (93), and main tank body (93) lower end forms air inlet area, is provided with internal layer built-up area (94) on the inside of air inlet area, It is provided with filtering material in internal layer built-up area (94) and is communicated with the internal layer airway (10).

4. a kind of multi-layer filtrating equipment of respirator according to claim 1, it is characterised in that: the air bag (4) includes There are internal layer airway (10) and balloon outer (45), outer filter portion two sides have been respectively communicated with the balloon outer (4) With internal layer filter house, internal layer filter house is connected to the internal layer airway (10) by current divider (11).

5. a kind of oxygen self-rescuer, which is characterized in that including a kind of any one of claim 1-4 multiple filtration of respirator Device；Oxygen self-rescuer further includes upper housing (1) and lower case (2)；It is provided in the lower case (2) including oxygen cylinder (3) And respiratory system；The respiratory system, which includes at least, to be had air bag (4), and air bag (4) side is communicated with respirator.

6. oxygen self-rescuer according to claim 5, it is characterised in that: pressure reducing valve is arranged in oxygen cylinder (3) side (31), pressure reducing valve (31) side is provided with connection valve pocket (32)；Air bag (4) side is provided with connecting sleeve (41), connection Cutting ferrule (41) setting is on the outside of the connection valve pocket (32) and the connecting sleeve (41) outer sheath is equipped with clamping set (7).

7. oxygen self-rescuer according to claim 6, it is characterised in that: one end of the clamping set (7) forms several Valve card-tight part (71), connection valve pocket (32) side form at least side clamping annular groove (33), the connecting sleeve (41) Locking protrusion is arranged in one end, described in the clamping annular groove (33) is adapted to the locking protrusion and the card-tight part (71) is set in The outside of locking protrusion.

8. oxygen self-rescuer according to claim 5, it is characterised in that: the lower end of the respirator forms connection Portion (51), air bag (4) upper end are provided with lower interconnecting piece (43), are led between the upper interconnecting piece (51) and lower interconnecting piece (43) Hoop component is crossed to snap connection.

9. oxygen self-rescuer according to claim 8, it is characterised in that: the upper interconnecting piece (51) and the lower interconnecting piece It (43) is bulge loop；The hoop component with the upper interconnecting piece (51) and the lower interconnecting piece (43) integrally formed with being adapted to respectively Upper Joining clasp (81) and lower Joining clasp (82).

10. oxygen self-rescuer according to claim 9, it is characterised in that: the hoop component includes at least two sons It detains (8), each sub-buckle (8) includes clip main body (83), and it is another that one end of clip main body (83) forms pin thread (84) One end forms the female thread (85) being adapted to the pin thread (84)；Described pin thread (84) one end forms several clamping bars (86), clamping bar (86) one end protrusion has inclined surface (87) and confined planes (88)；

The clamping groove for accommodating the female thread (85) is formed between the clip main body (83) and the confined planes (88) (89)。