CN210290807U - Eye washer is with dismantling case and valve - Google Patents
Eye washer is with dismantling case and valve Download PDFInfo
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- CN210290807U CN210290807U CN201921017780.5U CN201921017780U CN210290807U CN 210290807 U CN210290807 U CN 210290807U CN 201921017780 U CN201921017780 U CN 201921017780U CN 210290807 U CN210290807 U CN 210290807U
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Abstract
The utility model discloses a detachable valve core and a valve for an eye washer, wherein the valve core comprises a shell, a valve rod, a snap spring, an inner O-shaped ring, a drive plate, a movable ring, a fixed ring, an inner sealing ring and a sealing disc; the inner O-shaped ring is sleeved on the valve rod, then the valve rod is inserted into the valve rod fixing hole of the shell, the valve rod boss on the valve rod props against the lower edge of the valve rod fixing hole, and the upper edge of the valve rod fixing hole is fixed between the valve rod and the shell by using the snap spring; sleeving the movable ring outside the fixed ring, inserting two longitudinal parts of the U-shaped structure of the driving plate into two axial grooves on the movable ring, and clamping the transverse part of the U-shaped structure of the driving plate into the end surface groove of the valve rod to complete the installation of the driving plate, the movable ring and the fixed ring; then the inner sealing ring is placed below the movable ring in the shell, and then the sealing disc and the shell are screwed tightly through threads to complete the installation of the whole valve core; the utility model discloses each partial structure all can independently be dismantled and change, avoids the unnecessary waste that prior art valve whole change caused.
Description
Technical Field
The utility model relates to an eyewash ware correlation technique field, in particular to eyewash ware is with dismantling case and valve.
Background
The eye washer is an emergency rescue facility used in toxic and harmful dangerous operation environments. When eyes or bodies of operators are contacted with toxic and harmful chemical substances and other corrosive chemical substances, the eye washer can flush or shower the eyes and the bodies in an emergency, and further damage to the human bodies caused by the chemical substances is avoided.
In the prior art, a valve of the eye washer generally adopts a ball valve, the ball valve is designed in such a way that a valve core rotates by 90 degrees, and a circular through hole or a channel passes through the axis of a pipeline to complete the connection and the closing of a water channel. The ball valve is a mechanism which plays a role in cutting off, stopping and changing the flowing direction of fluid in a fluid pipeline, and the ball valve can achieve the effect of tight sealing only by rotating 90 degrees.
However, when the ball valve is damaged, the valve core cannot be replaced independently, the valve needs to be replaced integrally, and the cost is high; moreover, the ball valve can not be maintained or replaced on line, but the whole ball valve needs to be completely disassembled, so that the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
To the problem that needs that prior art exists are whole to be changed and can not maintain or change on line, the utility model aims to provide an eyewash ware is with dismantling case and valve.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a detachable valve core for an eye washer comprises a shell, a valve rod, a clamp spring, an inner O-shaped ring, a driving plate, a moving ring, a fixed ring, an inner sealing ring and a sealing disc;
a valve rod fixing hole is formed in the upper portion of the cavity in the shell, the valve rod fixing hole is coaxial with the cavity, and the diameter of the cavity is larger than that of the valve rod fixing hole; the bottom of the cavity is provided with internal threads; two coaxial shell through holes are formed in the opposite positions on the side wall of the middle lower part of the cavity; external threads are arranged on the outer wall above the two shell through holes;
the valve rod is sequentially provided with a first axial surface groove, a second axial surface groove, a valve rod boss and an end surface groove from top to bottom; the outer diameter of the valve rod boss is larger than the aperture of the valve rod fixing hole and smaller than the inner diameter of the cavity; the distance from the upper edge of the valve rod boss to the lower edge of the first axial surface groove of the valve rod is matched with the height of the valve rod fixing hole;
the valve rod is arranged in the valve rod fixing hole; the valve rod is in clearance fit with the valve rod fixing hole; the inner O-shaped ring is arranged in the groove of the second axial surface and is connected between the valve rod and the valve rod fixing hole in a sealing manner; the clamp spring is clamped in the first axial surface groove, and the outer diameter of the clamp spring is larger than the valve rod fixing hole;
two coaxial moving ring through holes are formed in the opposite positions of the moving ring side wall, and an axial groove is formed in each of the symmetrical positions of the outer side wall which is vertical to the vertical center line of the two moving ring through holes;
the driving plate is of an inverted U-shaped structure, the transverse part of the U-shaped structure of the driving plate is clamped in the end face groove, two longitudinal parts of the U-shaped structure of the driving plate are respectively clamped in the two axial grooves, and the two longitudinal parts of the U-shaped structure of the driving plate are matched with the two axial grooves;
two coaxial fixed ring through holes are formed in the opposite positions of the side wall of the fixed ring, and a passage is formed between the two fixed ring through holes and the two shell through holes;
the outer diameter of the movable ring is matched with the inner diameter of the cavity, and the inner diameter of the movable ring is matched with the outer diameter of the fixed ring; the position of the movable ring through hole is matched with that of the fixed ring through hole; the size of the fixed ring through hole is smaller than that of the non-hole part of the movable ring;
the outer shaft surface of the sealing disc is provided with sealing disc threads, and the sealing disc threads are matched with the internal threads; the lower end of the fixed ring is abutted with the sealing disc; the lower end of the movable ring is abutted to the sealing disc through the inner sealing ring.
A valve for an eye washer comprises a valve body, a handle and a detachable valve core for the eye washer in the technical proposal of the utility model; valve body internal threads are arranged at the edge of the cavity in the valve body and are matched with the external threads on the valve core; the two shell through holes form a passage with a pipeline connected with the valve; the size of the inner cavity of the valve body is matched with that of the valve core; the handle is fixedly connected with the valve rod.
The utility model has the advantages of as follows:
1. the valve core and the valve body of the valve can be disassembled, and any one of the valve core and the valve body can be independently replaced when in failure, thereby avoiding unnecessary waste caused by integral replacement;
2. the utility model discloses a case is detachable construction, when breaking down, only needs to close the total switch of intaking on the eyewash ware, just can pull down the case, and inspection problem part need not to dismantle convenient operation wholly to the valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional view of the valve element of the present invention;
fig. 2 is a schematic view of the valve of the present invention;
fig. 3 is a schematic perspective view of the valve body and the valve core of the present invention.
In the figure, 1-valve core; 11-a valve stem; 12-clamp spring, 13-inner O-shaped ring; 14-a housing; 15-outer O-ring; 16-a gasket; 17-a dial; 18-moving coil; 19-circling; 110-inner seal ring; 111-sealing discs; 112-an outer sealing ring; 113-housing through hole; 2-a valve body; and 3, a handle.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the schematic diagrams shown in fig. 1 and 3, which are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; the two structures can be connected mechanically or indirectly through an intermediate medium, and the two structures can be communicated with each other. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention may be understood in relation to the context of the present scheme.
Example 1
As shown in fig. 1, a detachable valve core for an eye washer comprises a housing 14, a valve rod 11, a clamp spring 12, an inner O-ring 13, a dial 17, a movable ring 18, a fixed ring 19, an inner sealing ring 110 and a sealing disc 111;
the inside of the shell 14 is generally of a through hole structure, wherein a cavity is arranged below the shell, a valve rod fixing hole is arranged above the shell, the valve rod fixing hole is coaxial with the cavity, and the diameter of the cavity is larger than that of the valve rod fixing hole; the inner wall of the bottom edge of the cavity is provided with internal threads; two coaxial shell through holes 113 are arranged at opposite positions on the side wall at the lower part in the cavity; external threads are arranged on the outer wall above the two shell through holes 113;
the valve rod 11 is sequentially provided with a first axial surface groove, a second axial surface groove, a valve rod boss and an end surface groove from top to bottom; the outer diameter of the valve rod boss is larger than the aperture of the valve rod fixing hole and smaller than the inner diameter of the cavity; the distance from the upper edge of the valve rod boss to the lower edge of the first axial surface groove of the valve rod 11 is matched with the height of the valve rod fixing hole, so that the valve rod 11 cannot shake up and down and back and forth when being installed in the valve rod fixing hole;
the valve rod 11 is arranged in the valve rod fixing hole; the valve rod 11 is in clearance fit with the valve rod fixing hole; the inner O-shaped ring 13 is arranged in the groove of the second shaft surface, and the inner O-shaped ring 13 is connected between the valve rod 11 and the valve rod fixing hole in a sealing manner; the clamp spring 12 is clamped in the first axial surface groove, and the outer diameter of the clamp spring 12 is larger than the valve rod fixing hole;
two coaxial moving ring through holes are formed in the opposite positions of the side wall of the moving ring 18, and an axial groove is formed in each of the symmetrical positions of the outer side wall which is vertical to the vertical center line of the two moving ring through holes;
the drive plate 17 is an inverted U-shaped structure, the transverse part of the U-shaped structure of the drive plate 17 is clamped in the end surface groove, preferably, the groove width of the end surface groove is the same as the thickness of the drive plate 17, the depth of the end surface groove is the same as the height of the transverse part of the U-shaped structure of the drive plate 17, two longitudinal parts of the U-shaped structure of the drive plate 17 are respectively clamped in two axial grooves, two longitudinal parts of the U-shaped structure of the drive plate 17 are matched with the two axial grooves, the matching refers to the fact that the groove widths of the two axial grooves are the same as the thickness of the drive plate 17, the depths of the two axial grooves are the same as the widths of the two longitudinal parts of the U-shaped structure of the drive plate 17, and the heights of the two axial grooves are the same as the heights of the two longitudinal parts;
two coaxial fixed ring through holes are arranged at opposite positions on the side wall of the fixed ring 19, and the two fixed ring through holes and the two shell through holes 113 form a passage;
the outer diameter of the movable ring 18 is matched with the inner diameter of the cavity, and the inner diameter of the movable ring 18 is matched with the outer diameter of the fixed ring 19; the position of the through hole of the movable ring is matched with the position of the through hole of the fixed ring; the size of the through hole of the fixed ring is smaller than that of the non-opening part of the movable ring, so that the movable ring and the fixed ring can form a closed structure to meet the water closing requirement of the valve;
the outer axial surface of the sealing disc 111 is provided with sealing disc threads, and the sealing disc threads are matched with the internal threads; the lower end of the fixed ring 19 is abutted with the sealing disc 111; the lower end of the rotating ring 18 abuts against the sealing plate via an inner sealing ring 110.
During assembly, the inner O-shaped ring 13 is sleeved in a second axial surface groove on the valve rod 11, then the valve rod 11 is inserted into a valve rod fixing hole in the shell 14, a valve rod boss on the valve rod 11 props against the lower edge of the valve rod fixing hole, and the upper edge of the valve rod fixing hole is clamped in a first axial surface groove on the valve rod 11 by a clamp spring 12 to complete the fixation between the valve rod 11 and the shell 14;
sleeving the movable ring 18 outside the fixed ring 19, inserting two longitudinal parts of the U-shaped structure of the drive plate 17 into two axial grooves on the movable ring, and then clamping the transverse part of the U-shaped structure of the drive plate 17 into the end surface groove of the valve rod 11 to complete the installation of the drive plate 17, the movable ring 18 and the fixed ring 19;
the inner seal ring 110 is then placed inside the housing 14 below the rotating ring 18, and the seal disc 111 is then screwed to the housing 14 to complete the installation of the entire valve cartridge.
Above case 1 assembled, during the switch, only need to rotate 90 with valve rod 11, except that the switch is convenient, any structural damage in this case 1 all can be changed alone, need the unnecessary waste that the whole change caused when having avoided the ball valve to damage.
The above is the basic model of the embodiment of the present invention, and in order to improve the technical effect, the following improvements can be made to the basic model of the embodiment, and the following improvements can be combined together without contradiction.
Wherein, in order to take account of the sealing effect of the valve core 1 and the water passing effect of the water passing hole formed by the shell through hole 113, the moving ring through hole and the fixed return through hole in the valve core 1, the size of the water passing hole is moderate and cannot be too large or too small; the two shell through holes 113 can be square holes or round holes, and the width or diameter of the two shell through holes 113 is 1/6-1/4 of the perimeter of the shell 14; the two movable ring through holes and the two fixed ring through holes can be square holes or round holes, the width or the diameter of the four through holes are the same, and the four through holes are 1/6-1/5 of the circumference of the fixed ring 19 respectively.
In order to improve the friction between the valve stem 11 and the housing 14 and enhance the sealing effect between the two, a gasket 16 may be disposed between two surfaces of the valve stem boss abutting against the housing cavity.
In order to give consideration to the poking effect of the driving plate 17 on the movable ring 18 and the sealing effect of the movable ring 18 and the fixed ring 19, the depths of the two axial grooves are moderate and do not penetrate through the ring wall of the movable ring 18, so that water leakage caused by a gap formed between the contact surfaces of the driving plate 17 and the movable ring 18 after long-term use is avoided, and the depths of the two axial grooves are 1/3-2/3 of the thickness of the outer wall of the movable ring 18 respectively; meanwhile, in order to take account of the dialing effect of the dialing plate 17 on the moving ring 18 and the service life of the moving ring 18, the heights of the two axial grooves are also required to be moderate, the dialing plate 17 cannot dial the moving ring 18 due to too short time, the side wall surfaces of the two groove parts on the moving ring 18 cannot be too thin due to too deep time, and then the two parts are torn after long-term use, so that the heights of the two axial grooves are 1/3-2/3 of the height of the outer wall of the moving ring respectively.
Because the utility model discloses a case need use on the eyewash ware, water in the eyewash ware is that direct towards eyes usefulness, if there is impurity or foreign matter in the aquatic, can cause the injury to eyes, the utility model relates to a at 19 inside fixed filter screens that set up of stationary ring, separate two stationary ring through-holes in the both sides of filter screen with the filter screen, water will carry out once filtering when this case like this, has avoided the injury of aquatic impurity or foreign matter to eyes.
Example 2
As shown in fig. 2, the valve for the eye washer comprises a valve body 2, a handle 3 and one of various detachable valve cores 1 for the eye washer shown in the embodiment 1; as shown in fig. 3, the edge of the cavity inside the valve body 2 is provided with a valve body internal thread, and the valve body internal thread is matched with the external thread on the valve core 1; the two housing through holes 113 form a passage with a pipe connected to the valve; the size of the inner cavity of the valve body is matched with that of the valve core 1, wherein the matching means that the sizes of all parts of the inner cavity of the valve body correspond to those of the valve core, the sealing connection between the inner cavity of the valve body and the valve core is ensured, and the water leakage of the valve is avoided; handle 3 and valve rod 1 fixed connection ensure that the valve switch is convenient. This is the basic model of example 2.
On the basis of the basic form of the above embodiment 2, the connecting line of the center points of the two housing through holes 113, the connecting line of the center points of the two fixed through holes, and the axial line of the pipe connected to the valve are parallel to each other or on the same axial line, thereby ensuring the maximization of the water passage formed by the three.
In order to enhance the sealing effect of the valve, the lower end face of the sealing disc 111 is provided with an end face groove, an outer sealing ring 113 is arranged in the end face groove, and the outer sealing ring 113 is connected between the valve core 1 and the valve body 2 in a sealing mode.
In order to have better sealing effect, a shell shaft surface groove is arranged on the outer wall above the external thread of the shell 14 in the valve core 1; a shell boss is arranged above the groove on the shaft surface of the shell; an outer O-shaped ring 5 is arranged in the groove of the shaft surface of the shell, and the outer O-shaped ring 5 is connected between the valve core 1 and the valve body 2 in a sealing way.
Regarding the handle, because the eyewash ware generally uses when user's eye receives the injury, the user probably can not open the eye this moment, in order to open the valve under this kind of condition, as shown in fig. 2, the utility model discloses be L shape with the handle, the longer limit of handle also sets up a little long, and the width is also widened, and wherein length sets up to 10 ~ 25cm, and the end of the shorter limit of handle is provided with the through-hole, and this through-hole can be convenient for link to each other with other mechanisms through rope or similar structure, for example footboard mechanism, and the user of being convenient for opens the valve through the step.
The valve core and the valve body of the valve of the utility model can be disassembled, and any one of the valve core and the valve body can be replaced independently when a fault occurs, thereby avoiding unnecessary waste caused by integral replacement; and when the eye washer is replaced, the operation can be carried out by only closing the main valve on the eye washer and detaching the valve core, so that the eye washer is simple, convenient and quick.
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 described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an eyewash ware is with dismantling case which characterized in that: the automatic sealing device comprises a shell, a valve rod, a clamp spring, an inner O-shaped ring, a driving plate, a moving ring, a fixed ring, an inner sealing ring and a sealing disc;
a valve rod fixing hole is formed in the upper portion of the cavity in the shell, the valve rod fixing hole is coaxial with the cavity, and the diameter of the cavity is larger than the diameter of the valve rod fixing hole; the bottom of the cavity is provided with internal threads; two coaxial shell through holes are formed in the opposite positions on the side wall of the middle lower part of the cavity; external threads are arranged on the outer wall above the two shell through holes;
the valve rod is sequentially provided with a first axial surface groove, a second axial surface groove, a valve rod boss and an end surface groove from top to bottom; the outer diameter of the valve rod boss is larger than the inner diameter of the valve rod fixing hole and smaller than the inner diameter of the cavity; the distance from the upper edge of the valve rod boss to the lower edge of the first axial surface groove of the valve rod is matched with the height of the valve rod fixing hole;
the valve rod is arranged in the valve rod fixing hole; the valve rod is in clearance fit with the valve rod fixing hole; the inner O-shaped ring is arranged in the groove of the second axial surface and is connected between the valve rod and the valve rod fixing hole in a sealing manner; the clamp spring is clamped in the first axial surface groove, and the outer diameter of the clamp spring is larger than the valve rod fixing hole;
two coaxial moving ring through holes are formed in the opposite positions of the moving ring side wall, and an axial groove is formed in each of the symmetrical positions of the outer side wall which is vertical to the vertical center line of the two moving ring through holes;
the driving plate is of an inverted U-shaped structure, the transverse part of the U-shaped structure of the driving plate is clamped in the end face groove, two longitudinal parts of the U-shaped structure of the driving plate are respectively clamped in the two axial grooves, and the two longitudinal parts of the U-shaped structure of the driving plate are matched with the two axial grooves;
two coaxial fixed ring through holes are formed in the opposite positions of the side wall of the fixed ring, and a passage is formed between the two fixed ring through holes and the two shell through holes;
the outer diameter of the movable ring is matched with the inner diameter of the cavity, and the inner diameter of the movable ring is matched with the outer diameter of the fixed ring; the position of the movable ring through hole is matched with that of the fixed ring through hole; the size of the fixed ring through hole is smaller than that of the non-hole part of the movable ring;
the outer shaft surface of the sealing disc is provided with sealing disc threads, and the sealing disc threads are matched with the internal threads; the lower end of the fixed ring is abutted with the sealing disc; the lower end of the movable ring is abutted to the sealing disc through the inner sealing ring.
2. The removable cartridge for an eye washer according to claim 1, wherein: the width or the diameter of the two shell through holes is 1/6-1/4 of the perimeter of the shell; the width or the diameter of each of the two movable ring through holes is the same as that of each of the two fixed ring through holes, and the widths or the diameters of the two movable ring through holes are 1/6-1/5 of the perimeter of the fixed ring.
3. The removable cartridge for an eye washer according to claim 1, wherein: and a gasket is arranged between the two surfaces of the valve rod boss and the housing cavity body in butt joint.
4. The removable cartridge for an eye washer according to claim 1, wherein: the depth of each axial groove is 1/3-2/3 of the thickness of the outer wall of the movable ring; the heights of the two axial grooves are 1/3-2/3 of the height of the outer wall of the movable ring.
5. The detachable valve core for the eye washer according to any one of claims 1 to 4, wherein: the fixed ring is internally and fixedly provided with a filter screen, and the filter screen separates two fixed ring through holes from two sides of the filter screen.
6. A valve for an eye washer is characterized in that: the eye washer comprises a valve body, a handle and a detachable valve core for the eye washer according to any one of claims 1 to 5; valve body internal threads are arranged at the edge of the cavity in the valve body and are matched with the external threads on the valve core; the two shell through holes form a passage with a pipeline connected with the valve; the size of the inner cavity of the valve body is matched with that of the valve core; the handle is fixedly connected with the valve rod.
7. The valve for an eye washer according to claim 6, wherein: the connecting line of the central points of the two shell through holes, the connecting line of the central points of the two fixed through holes and the axial lead of the pipeline connected with the valve are mutually parallel or on the same axial line.
8. The valve for an eye washer according to claim 6, wherein: the sealing disc is characterized in that an end face groove is formed in the lower end face of the sealing disc, an outer sealing ring is arranged in the end face groove, and the outer sealing ring is connected between the valve core and the valve body in a sealing mode.
9. The valve for an eye washer according to any one of claims 6 to 8, wherein: a shell axial surface groove is formed in the outer wall above the external thread; a shell boss is arranged above the groove on the axial surface of the shell; an outer O-shaped ring is arranged in the groove of the shaft surface of the shell and is connected between the valve core and the valve body in a sealing mode.
10. The valve for an eye washer according to claim 6, wherein: the handle is L shape, the length on the longer limit of handle is 10 ~ 25cm, the end on the shorter limit of handle is provided with the through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017780.5U CN210290807U (en) | 2019-07-02 | 2019-07-02 | Eye washer is with dismantling case and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017780.5U CN210290807U (en) | 2019-07-02 | 2019-07-02 | Eye washer is with dismantling case and valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290807U true CN210290807U (en) | 2020-04-10 |
Family
ID=70100024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921017780.5U Active CN210290807U (en) | 2019-07-02 | 2019-07-02 | Eye washer is with dismantling case and valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290807U (en) |
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2019
- 2019-07-02 CN CN201921017780.5U patent/CN210290807U/en active Active
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Effective date of registration: 20210824 Address after: 201714 floor 3, building 3, No. 50, Kangyuan Road, Zhujiajiao Town, Qingpu District, Shanghai Patentee after: SHANGHAI BUTIAN SAFETY PROT EQUIPMENT Co.,Ltd. Address before: 201713 Room 101, building 1, No. 6663, Huqingping Road, Qingpu District, Shanghai Patentee before: Shanghai Hanyong safety protection equipment Co.,Ltd. |