CN202684829U - One-way valve dismounting device - Google Patents

One-way valve dismounting device Download PDF

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Publication number
CN202684829U
CN202684829U CN 201220234310 CN201220234310U CN202684829U CN 202684829 U CN202684829 U CN 202684829U CN 201220234310 CN201220234310 CN 201220234310 CN 201220234310 U CN201220234310 U CN 201220234310U CN 202684829 U CN202684829 U CN 202684829U
Authority
CN
China
Prior art keywords
main shaft
check valve
overcoat
way valve
disengagement
Prior art date
Application number
CN 201220234310
Other languages
Chinese (zh)
Inventor
刘名中
林新阳
张益安
阳四红
刘文军
Original Assignee
东莞玖龙纸业有限公司
东莞地龙纸业有限公司
东莞海龙纸业有限公司
东莞天龙纸业有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 东莞玖龙纸业有限公司, 东莞地龙纸业有限公司, 东莞海龙纸业有限公司, 东莞天龙纸业有限公司 filed Critical 东莞玖龙纸业有限公司
Priority to CN 201220234310 priority Critical patent/CN202684829U/en
Application granted granted Critical
Publication of CN202684829U publication Critical patent/CN202684829U/en

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Abstract

The utility model relates to the technical field of dismounting devices for parts of machines, in particular to a one-way valve dismounting device. The one-way valve dismounting device comprises a spindle and an outer sleeve, wherein the tail end of the spindle is inclined outwards; the spindle is sleeved by the outer sleeve; a thread is arranged at the front end of the spindle; a nut is arranged at the front end of the spindle in a position at the upper part of the outer sleeve; and a drawing piece is connected with the front end of the spindle. During use, such a dismounting device in a specification fit with the inner hole of a one-way valve is selected and used, the tail end of the spindle is inserted in the inner hole of the valve seat of the one-way valve, the nut is screwed downwards to push the outer sleeve to move down, as the tail end of the spindle is inclined outwards, the bottom of the outer sleeve is expanded outwards so as to tightly lock the inner hole of the valve seat of the one-way valve, the dismounting device can firmly grip the valve seat of the one-way valve in virtue of friction force, and the valve seat of the one-way valve can be pulled out by pulling the drawing piece with effort. Therefore, the valve seat of the one-way valve is cushily and quickly dismounted without being damaged. The one-way valve dismounting device has the advantages of simple structure, convenience in use, low manufacturing cost and high practicability.

Description

A kind of check valve provision for disengagement
Technical field
The utility model relates to component of machine provision for disengagement technical field, particularly a kind of check valve provision for disengagement.
Background technology
Check valve claims again check-valves or non-return valve, and it is used for hydraulic system and prevents oil stream reverse flow, perhaps is used for pneumatic system and prevents the compressed air reverse flow.At present, in high-pressure plunger pump and hydraulic system, the great quantity of small check valve all is housed, and the check valve valve body is embedded in the apparatus body, because apparatus body is small and exquisite, compact conformation, and the check valve valve body is without stress point, do not have at present good way and instrument easy removal to get off, generally adopt traditional disruptive methods such as knocking, firmly dial to take out, not only cause the check valve valve body to damage, also cause apparatus body to damage inefficiency.
For the deficiencies in the prior art, a kind of instrument for dismounting hydraulic valve block plug-in mounting check valve is also arranged in the market, it comprise the bottom for the screw rod of truncated cone-shaped, be enclosed within open type screw sleeve on the screw rod, be installed in the gland on screw sleeve top, nut is equipped with on the top of next-door neighbour's gland of screw rod, during use screw rod bottom plug-in mounting is fixed on the check valve, then gland is pushed against on the support set, utilizes precession and the back-out of screw rod, make the bottom of the screw rod check valve that is locked then take out check valve.Yet, there is following defective in the check valve extracting tool of the prior art: 1, must use support set, need outside at the check valve installing port or at the inboard fixed support cover of gland first during use, troublesome poeration, and because the plug active force of check valve is larger, gland to support set to push against active force also larger, frequent dismounting check valve is easy to cause support set to get loose or is out of shape, poor practicability, complex structure; 2, screw sleeve is the open type structure, when the squeezing action power of screw rod is larger, cause screw sleeve to expand after easily distortion even can get loose from screw rod, use inconvenient.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, easy to use, the check valve provision for disengagement that cost of manufacture is low and practical for the deficiencies in the prior art.
The purpose of this utility model realizes by following technical measures.
A kind of check valve provision for disengagement is provided, comprise the main shaft of terminal outward-dipping setting, and be sheathed on the outer overcoat of described main shaft, the front end of described main shaft is provided with screw thread, the top that the front end of described main shaft is positioned at described overcoat is provided with nut, and the front end of described main shaft is connected with drawing part.
Wherein, the front end of described main shaft is cylindrical or conical, and the end of described main shaft is truncated cone-shaped.
Wherein, the bottom of the end of the contiguous described main shaft of described overcoat circumferentially offers groove.
Wherein, described groove is at least two, and at least two described groove equi-spaced apart are arranged at the bottom of described overcoat.
Wherein, the top of described groove is curved.
Wherein, the spindle jacket between described overcoat and described nut is provided with plain washer.
Wherein, be provided with the installation keeper between the top of described main shaft and the described drawing part.
Wherein, rectangular, the pentagon of the cross section of described installation keeper, hexagon or octagon.
Wherein, described drawing part is draw ring or clasp.
The beneficial effects of the utility model are: a kind of check valve provision for disengagement of the present utility model, the main shaft that comprises terminal outward-dipping setting, and be sheathed on the outer overcoat of described main shaft, the front end of described main shaft is provided with screw thread, the top that the front end of described main shaft is positioned at described overcoat is provided with nut, and the front end of described main shaft is connected with drawing part.During use, select the provision for disengagement of suitable check valve endoporus specification of the present utility model, the end of main shaft is inserted the one-way valve seat endoporus, nut is twisted toward the below, promote overcoat and move down, because of the terminal outward-dipping setting of main shaft, the bottom of overcoat expands outwardly, tightly pin the one-way valve seat endoporus, rely on frictional force, the utility model can clench one-way valve seat, pull at tight drawing part, one-way valve seat can be pulled out, can realize without damaging, easily the quick-detachment one-way valve seat the utlity model has simple in structure, easy to use, low cost of manufacture, practical advantage can be applicable to the dismounting of similar means simultaneously, has wide range of applications.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not consist of any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of check valve provision for disengagement of the utility model.
Fig. 2 is the structural representation of the groove of a kind of check valve provision for disengagement of the utility model.
Reference numeral includes:
1---main shaft 11---end
12---front end 13---screw thread
2---overcoat 21---groove
3---plain washer 4---nut
5---drawing parts 6---are installed keeper.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, this is preferred embodiment of the present utility model.
As depicted in figs. 1 and 2, a kind of check valve provision for disengagement of the present embodiment, the main shaft 1 that comprises terminal 11 outward-dipping settings, and be sheathed on the outer overcoat 2 of described main shaft 1, the front end 12 of described main shaft 1 is provided with screw thread 13, the top that the front end 12 of described main shaft 1 is positioned at described overcoat 2 is provided with nut 4, and the front end 12 of described main shaft 1 is connected with drawing part 5.Wherein, the bottom of the end 11 of described overcoat 2 contiguous described main shafts 1 circumferentially offers groove 21, is convenient to overcoat 2 expansions.Wherein, be provided with installation keeper 6 between the top of described main shaft 1 and the described drawing part 5.
During use, select the provision for disengagement of suitable check valve endoporus specification of the present utility model, the end 11 of main shaft 1 is inserted the one-way valve seat endoporus, block the installation keeper 6 on main shaft 1 top with orientation tools such as spanners, avoid main shaft 1 in drawing process, to move with the rotation of nut 4, main shaft 1 good positioning effect, then nut 4 is twisted toward the below, promoting overcoat 2 moves down, because main shaft 1 terminal 11 outward-dipping settings, then the end 11 of main shaft 1 is tapering, again because overcoat 2 offers groove 21, the bottom that is conducive to overcoat 2 expands outwardly, main shaft 1 and overcoat 2 are combined external diameter can carry out expanse, tightly pin the one-way valve seat endoporus, rely on frictional force, the utility model can clench one-way valve seat, pulls at tight drawing part 5, one-way valve seat can be pulled out, can realize without damaging, light quick-detachment one-way valve seat, the utlity model has simple in structure, easy to use, low cost of manufacture, easy to maintenance, practical advantage, can be applicable to simultaneously the dismounting of similar means, be convenient to catch the cylindrical hole part of some smooth inner walls, have wide range of applications.
As shown in Figure 1, the front end 12 of the main shaft 1 of the present embodiment is cylindrical or conical, and the end 11 of described main shaft 1 is truncated cone-shaped.Preferred embodiment the front end 12 of main shaft 1 is cylindrical as one, and the end 11 of main shaft 1 is truncated cone-shaped, and is simple in structure, is convenient to machine-shaping, and production cost is low.Further, the front end of main shaft 1 12 is for being provided with the cylindrical of screw thread 13, is conducive to attaching nut 4 and tightens and get loose, and dismantles effectively, and dependability is strong.Certainly, the front end 12 of main shaft 1 of the present utility model can also be conical or other shapes, as long as it can realize the purpose of dismounting check valve.
The groove 21 of the present embodiment is at least two, and at least two described groove 21 equi-spaced apart are arranged at the bottom of described overcoat 2.As one preferred embodiment, the bottom of overcoat 2 contiguous described main shaft 1 ends 11 circumferentially offers 4 grooves 21, the angle of adjacent two grooves 21 is 90 degree, being set to of groove 21 realizes that the deformation of overcoat 2 has improved deformation space, be convenient to overcoat 2 expansions, avoid the overcoat 2 excessive damage that causes overcoat 2 that in process of expansion, deforms, prolong the service life of overcoat 2, reduce maintenance cost.Certainly, the quantity of groove 21 also can be 3, and the angle of adjacent two grooves 21 is 120 degree, reduces manufacturing procedure, reduces the manufacturing cost of overcoat 2.
As shown in Figure 2, the top of the groove 21 of the present embodiment is curved, the top that is connected with overcoat 2 of groove 21 is the circular arc design, avoiding groove 21 tops to produce stress concentrates, thereby avoid large because of dilating effect power in overcoat 2 processs of expansion, the elastic deformation of overcoat 2 is excessive and cause overcoat 2 to split on the top of groove 21, prolongs the service life of overcoat 2, improves dependability of the present utility model.
As shown in Figure 1, be arranged with plain washer 3 outside the main shaft 1 between described overcoat 2 and described nut 4 of the present embodiment.During the dismounting check valve, nut 4 is tightened downwards along the screw thread 13 of main shaft 1, thereby compress overcoat 2 to end 11 expansions of main shaft 1, being provided with to be beneficial to of plain washer 3 guarantees that nut 4 drives overcoat 2 and moves down reposefully in moving down process, guarantee that overcoat 2 steadily expands outwardly, dismantle effectively, and avoid nut 4 directly to contact and the top of the overcoat 2 that weares and teares with overcoat 2, prolong the service life of overcoat 2.
As shown in Figure 1, rectangular, the pentagon of the cross section of the installation keeper 6 of the present embodiment, hexagon or octagon.As one preferred embodiment, the cross section that keeper 6 is installed is rectangular, particularly, mounting fixing parts is square head, is conducive to the clamping of the positioning workpieces such as spanner, thereby avoids main shaft 1 to rotate in the process of dismounting check valve, auxiliary positioning is effective, and is simple in structure.
As shown in Figure 1, the drawing part 5 of the present embodiment is draw ring or clasp.Preferred embodiment drawing part 5 is draw ring as one, thereby convenient operation person drawing main shaft 1 disassembles check valve, and is easy to use.Certainly, drawing part 5 can also be that clasp or other make things convenient for the parts of drawing.
Should be noted that at last; above embodiment is only in order to illustrate the technical solution of the utility model; but not to the restriction of the utility model protection domain; although with reference to preferred embodiment the utility model has been done to explain; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.

Claims (9)

1. check valve provision for disengagement, it is characterized in that: the main shaft that comprises terminal outward-dipping setting, and be sheathed on the outer overcoat of described main shaft, the front end of described main shaft is provided with screw thread, the top that the front end of described main shaft is positioned at described overcoat is provided with nut, and the front end of described main shaft is connected with drawing part.
2. a kind of check valve provision for disengagement according to claim 1, it is characterized in that: the front end of described main shaft is cylindrical or conical, and the end of described main shaft is truncated cone-shaped.
3. a kind of check valve provision for disengagement according to claim 1 is characterized in that: the bottom of the end of the contiguous described main shaft of described overcoat circumferentially offers groove.
4. a kind of check valve provision for disengagement according to claim 3, it is characterized in that: described groove is at least two, and at least two described groove equi-spaced apart are arranged at the bottom of described overcoat.
5. a kind of check valve provision for disengagement according to claim 3, it is characterized in that: the top of described groove is curved.
6. the according to claim 1 described a kind of check valve provision for disengagement of any one in 5, it is characterized in that: the spindle jacket between described overcoat and described nut is provided with plain washer.
7. the according to claim 1 described a kind of check valve provision for disengagement of any one in 5 is characterized in that: be provided with the installation keeper between the top of described main shaft and the described drawing part.
8. a kind of check valve provision for disengagement according to claim 7 is characterized in that: the cross section of described installation keeper is rectangular, pentagon, hexagon or octagon.
9. a kind of check valve provision for disengagement according to claim 1, it is characterized in that: described drawing part is draw ring or clasp.
CN 201220234310 2012-05-23 2012-05-23 One-way valve dismounting device CN202684829U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220234310 CN202684829U (en) 2012-05-23 2012-05-23 One-way valve dismounting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220234310 CN202684829U (en) 2012-05-23 2012-05-23 One-way valve dismounting device

Publications (1)

Publication Number Publication Date
CN202684829U true CN202684829U (en) 2013-01-23

Family

ID=47540496

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220234310 CN202684829U (en) 2012-05-23 2012-05-23 One-way valve dismounting device

Country Status (1)

Country Link
CN (1) CN202684829U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104942758A (en) * 2014-03-25 2015-09-30 严迪飞 Fetching tool for broken thread of water pipe
CN110026943A (en) * 2019-05-07 2019-07-19 中国石油天然气股份有限公司 Increase the mounting and dismounting tool of pipe nipple
CN111434464A (en) * 2019-01-15 2020-07-21 宝山钢铁股份有限公司 Nondestructive dismounting device and method for valve core of air passage of gear cylinder of truck

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104942758A (en) * 2014-03-25 2015-09-30 严迪飞 Fetching tool for broken thread of water pipe
CN111434464A (en) * 2019-01-15 2020-07-21 宝山钢铁股份有限公司 Nondestructive dismounting device and method for valve core of air passage of gear cylinder of truck
CN110026943A (en) * 2019-05-07 2019-07-19 中国石油天然气股份有限公司 Increase the mounting and dismounting tool of pipe nipple

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20130724

Address after: 523000 Guangdong city in Dongguan Province Ma Er Cun, Dongguan Nine Dragons Paper Co. Ltd.

Patentee after: Dongguan Nine Dragons Paper Co., Ltd.

Address before: 523000 Guangdong city in Dongguan Province Ma Er Cun, Dongguan Nine Dragons Paper Co. Ltd.

Patentee before: Dongguan Nine Dragons Paper Co., Ltd.

Patentee before: Dongduan Land Dragon Paper Industry Co., Ltd.

Patentee before: Dongguan Hailong Paper Co., Ltd.

Patentee before: Dongguan Tianlong Paper Industry Co., Ltd.

ASS Succession or assignment of patent right

Free format text: FORMER OWNER: DONGGUAN DILONG PAPER INDUSTRY CO., LTD. DONGGUAN HAILONG PAPER CO., LTD. DONGGUAN TIANLONG PAPER INDUSTRY CO., LTD.

Effective date: 20130724

C41 Transfer of patent application or patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130123

Termination date: 20160523