CN218511975U - Detect ball valve sealing performance of intaking and use sensing device - Google Patents
Detect ball valve sealing performance of intaking and use sensing device Download PDFInfo
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- CN218511975U CN218511975U CN202221857876.4U CN202221857876U CN218511975U CN 218511975 U CN218511975 U CN 218511975U CN 202221857876 U CN202221857876 U CN 202221857876U CN 218511975 U CN218511975 U CN 218511975U
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Abstract
The utility model provides a detect ball valve sensing device for sealing performance of intaking, include with the ball valve of intaking join in marriage the casing that connects in it and establish the through-hole, establish the sealing member on it, be equipped with the telescopic link pole of its upper band spring in its characterized in that casing through-hole, telescopic link pole one end links to each other with the guide bar of establishing the sealing member on it, and the other end links to each other with stroke response piece, this stroke response piece with locate the signal sensor signal connection on the casing. Install the casing on the ball valve of intaking, the displacement volume that produces through guide bar and flexible connecting rod transmission sealed chamber to drive stroke response piece and remove and send displacement signal after carrying out signal connection with signal sensor, the spring lets the guide bar and flexible when sealed chamber resets, accomplishes the detection of whether sealed chamber of the ball valve of intaking displaced, and then judges its sealed cavitity through the displacement volume.
Description
Technical Field
The utility model relates to a sensing device, especially a detect ball valve sensing device for sealing performance of intaking belongs to the sealing performance and detects and makes technical field with sensing device design.
Background
Hydroelectric set that the power station used all is equipped with the ball valve of intaking, all is equipped with work seal sensor and overhauls seal sensor on every ball valve of intaking, and this type of sensor is electronic type proximity switch, and its measuring range is at 1.5mm for detect the displacement volume of the ball valve seal chamber of intaking, and then judge the ball valve of intaking and whether have the risk of leaking. Because work seal sensor and maintenance seal sensor soak in aqueous for a long time, when the ball valve seal chamber of intaking takes place small change or the water contains the sand content height, can take place the seal chamber displacement and detect inaccurately, current sensor is embedded installation in addition, unable visual observation and the sealed condition of judgement, only shut down the processing and just can discover sealed problem, not only waste time and energy, the operation difficulty, can lead to the ball valve of intaking to leak because of can not in time detect sealed existence problem moreover, influence the ball valve of intaking and normally work. There is therefore a need for improvements in the prior art.
Disclosure of Invention
For solving current hydraulic generator ball valve of intaking because of being difficult to in time discover sealed not enough, lead to the ball valve of intaking to leak, influence the ball valve of intaking and normally work scheduling problem, the utility model provides a detect ball valve of intaking and sensing device for sealing performance.
The utility model discloses a following technical scheme accomplishes: a sensor for detecting the sealing performance of water inlet ball valve is composed of a casing with a through hole and a sealing part, and a telescopic rod with spring in its through hole, a guide rod with sealing part and connected to said guide rod, and a stroke sensing block connected to said signal sensor.
The shell is a long right-circular cylinder, the length of the shell is matched with the depth of a slot arranged on the shell of the water inlet ball valve, a cylindrical plug with the outer diameter smaller than that of the shell is arranged at the front end of the shell, external threads are arranged on the outer wall of the front part of the shell, and a plurality of square surfaces are arranged on the outer wall of the rear part of the shell;
the through hole on the shell is arranged in a through way along the axial direction of the plug and the shell, two ends of the through hole are respectively provided with an opening, the aperture of the front section, the aperture of the middle section and the aperture of the rear section of the through hole are gradually enlarged, and a drain hole communicated with the through hole is arranged on the shell;
so that the guide rod, the telescopic connecting rod and the spring are arranged in the through hole, and water which accidentally enters the through hole is discharged through the water discharge hole; when the shell is placed on the water inlet ball valve, the external threads of the outer wall of the front portion of the shell are in threaded connection with the internal threads of the slot on the water inlet ball valve, and therefore the insertion and extraction operations of the shell are facilitated through the square faces of the outer wall of the rear portion of the shell.
The telescopic connecting rod is a long straight rod, is positioned at the rear section of the through hole of the shell and has a diameter smaller than the hole diameter of the rear section of the through hole, one end of the telescopic connecting rod is connected with one end of the limiting rod through a stop block, the other end of the limiting rod is connected with the inner end of the guide rod, the limiting rod is positioned at the middle section of the through hole of the shell and has a diameter matched with the hole diameter of the middle section of the through hole, the guide rod is a short straight rod, is positioned at the front section of the through hole of the shell and has a diameter matched with the hole diameter of the front section of the through hole, the outer end of the guide rod extends outwards from the front section of the through hole of the shell and then is matched and connected with the sealing cavity of the water inlet ball valve, and the other end of the telescopic connecting rod passes through the through hole of the shell and extends outwards and then is connected with the stroke sensing block;
after the guide rod is contacted with the sealing cavity of the water inlet ball valve, the guide rod, the limiting rod and the telescopic connecting rod compression spring can be pushed to synchronously move when the sealing cavity is displaced, so that the stroke sensing block connected with the telescopic connecting rod is in signal connection with the signal sensor in the moving process, and a displacement signal of the sealing cavity of the water inlet ball valve is sent; the limiting rod can prevent the telescopic connecting rod and the guide rod from shaking axially.
The spring housing is located telescopic connection pole and is located casing through-hole back end, and spring one end is passed through the dog, the other end passes through the gland to be fixed on telescopic connection pole, and the gland spiro union is in the casing through-hole to when the ball valve seal chamber of intaking restores to the throne, make the flexible connecting rod of guide bar reset through the spring.
The sealing elements on the shell are provided with a plurality of sealing rings which are sleeved in a plurality of annular grooves on the outer wall of the plug at the front end of the shell; the sealing element on the guide rod is a sealing sleeve which is sleeved on the guide rod and is matched and connected with the front section of the through hole of the shell, so that the sealing capability between the shell and the water inlet ball valve and between the guide rod and the shell is ensured through the sealing element.
The signal sensor passes through the leg joint on the casing, this support is including locating casing one end and the flat board parallel with it, flat board inner is equipped with the vertically folded plate with it, the folded plate lower extreme is equipped with the ring of the ring groove looks joint that corresponds with the casing rear end, be equipped with the waist hole on the flat board, signal sensor fixes on the waist hole through the screw rod and the nut that link to each other with it, signal sensor's induction end with locate the stroke response piece signal connection on the telescopic link, and signal sensor links to each other with the controller through wired or wireless mode, so that telescopic link drives the stroke response piece and removes and with signal sensor's induction end signal connection back, can give the controller with the signal transmission of the sealed chamber displacement of ball valve that intakes.
The utility model has the advantages of the following and the effect: adopt above-mentioned scheme, install the casing on the ball valve of intaking, through the displacement volume that guide bar and telescopic link transmission sealed chamber produced to drive stroke response piece and remove and send displacement signal after being connected with signal sensor signal, the spring lets guide bar and telescopic link reset when sealed chamber resets, accomplishes the detection of the ball valve sealed chamber of intaking whether drop into or withdraw from the displacement. Is an ideal sensing device.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a top sectional view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides an embedded displacement sensing device includes: a shell 6 which is matched and connected with the water inlet ball valve and is internally provided with a through hole and a sealing piece is arranged on the shell, a telescopic connecting rod 18 with a spring 17 is arranged in the through hole of the shell 6, the left end of the telescopic connecting rod 18 is connected with a guide rod 1 with the sealing piece arranged on the guide rod, the right end of the telescopic connecting rod is connected with a stroke sensing block 11, the stroke sensing block 11 is in signal connection with a signal sensor 20 arranged on the shell 6, so that the shell 6 is placed in the water inlet ball valve, the guide rod 1 is in contact with the sealing cavity wall of the water inlet ball valve, the guide rod 1 and the telescopic connecting rod 18 are further pushed to compress the spring 17 to move rightwards, the stroke sensing block 11 at the right end of the telescopic connecting rod 18 is in signal connection with the signal sensor 20 to send a displacement signal of the sealing cavity of the water inlet ball valve, the displacement detection whether the sealing cavity of the water inlet ball valve is put in place is finished, when the sealing cavity of the water inlet ball valve is restored, the guide rod 1 and the telescopic connecting rod 18 move leftwards to return under the action of the spring 17, and the displacement detection whether the sealing cavity of the water inlet ball valve is withdrawn out in place is finished; the sealing performance in the cavity is ensured through the sealing parts arranged on the guide rod 1 and the shell 6, and the internal pressure of the water inlet ball valve is prevented from leaking;
the shell 6 is a long right-circular cylinder, the length of the shell is matched with the depth of a slot arranged on the shell of the water inlet ball valve, the front end of the shell 6 is provided with a cylindrical plug 2 with the outer diameter smaller than that of the shell 6, the outer wall of the front part of the shell 6 is provided with external threads 4, and the outer wall of the rear part of the shell 6 is provided with a plurality of square surfaces 7;
the through hole on the shell 6 is arranged along the axial direction of the plug 2 and the shell 6 in a run-through way, two ends of the through hole are respectively provided with an opening, the aperture of the front end 24, the middle section 23 and the rear section 22 of the through hole is gradually enlarged, and the shell 6 is provided with a drain hole 5 communicated with the through hole;
so that the guide rod 1, the telescopic connecting rod 18 and the spring 17 are arranged in the through hole, and water which accidentally enters the through hole is discharged through the water discharge hole 5; meanwhile, when the shell 6 is placed on the water inlet ball valve, the external thread 4 on the outer wall of the front part of the shell 6 is in threaded connection with the internal thread of the slot on the water inlet ball valve, and the insertion and extraction operations of the shell 6 are facilitated through a plurality of square surfaces 7 arranged on the outer wall of the rear part of the shell 6 at intervals;
the telescopic connecting rod 18 is a long straight rod, is positioned at the rear section 22 of the through hole of the shell 6, and has a diameter smaller than the aperture of the rear section 22 of the through hole, the left end of the telescopic connecting rod 18 is connected with the right end of the limiting rod 15, the left end of the limiting rod 15 is connected with the right end of the guide rod 1, the limiting rod 15 is positioned at the middle section 23 of the through hole of the shell 6, the diameter of the limiting rod is adaptive to the aperture of the middle section 23 of the through hole, the guide rod 1 is a short straight rod, is positioned at the front section 24 of the through hole of the shell 6, and has a diameter adaptive to the aperture of the front section 24 of the through hole, the outer end of the guide rod 1 extends outwards from the front section of the through hole of the shell 6 and then is matched and connected with the sealing cavity of the water inlet ball valve, and the right end of the telescopic connecting rod 18 passes through the right end of the through hole of the shell 6 and then extends rightwards to be connected with the stroke induction block 11;
so that the left end of the guide rod 1 is contacted with the wall of the sealing cavity of the water inlet ball valve, when the sealing cavity moves rightwards, the guide rod 1, the limiting rod 15 and the telescopic connecting rod 18 are pushed to compress the spring 17 to synchronously move rightwards, and the stroke sensing block 11 at the right end of the telescopic connecting rod 18 is in signal connection with the signal sensor 20 to send a signal of the input displacement of the sealing cavity of the water inlet ball valve; the limiting rod 15 can prevent the telescopic connecting rod 18 and the guide rod 1 from shaking axially;
the spring 17 is sleeved on the telescopic connecting rod 18 and is positioned at the rear section 22 of the through hole of the shell 6, the left end of the spring 17 is fixed on the telescopic connecting rod 18 through the stop block 16 and the right end of the spring 17 through the gland 8, and the gland 8 is in threaded connection with the right end of the through hole of the shell 6, so that the telescopic connecting rod 18 of the guide rod 1 is reset when the sealing cavity of the water inlet ball valve is restored through the spring 17, and a signal for detecting the withdrawing displacement of the sealing cavity of the water inlet ball valve is sent;
the sealing elements arranged on the shell 6 are a plurality of sealing rings 13 which are all sleeved in the corresponding annular grooves 3 on the outer wall of the plug 2 at the front end of the shell 6, so that the shell 6 and the water inlet ball valve are sealed through the sealing rings 13.
The sealing element arranged on the guide rod 1 is a sealing sleeve 14, and the sealing sleeve 14 is sleeved on the guide rod 1 and is positioned in the front section 24 of the through hole of the shell 6 so as to seal the space between the shell 6 and the guide rod 1 through the sealing sleeve 14;
Claims (9)
1. A sensing device for detecting the sealing performance of a water inlet ball valve comprises a shell which is matched with the water inlet ball valve and is internally provided with a through hole and a sealing piece, and is characterized in that a telescopic connecting rod with a spring is arranged in the through hole of the shell, one end of the telescopic connecting rod is connected with a guide rod on which the sealing piece is arranged, the other end of the telescopic connecting rod is connected with a stroke sensing block, and the stroke sensing block is in signal connection with a signal sensor arranged on the shell.
2. The sensor for detecting the sealing performance of the water inlet ball valve according to claim 1, wherein the housing is a long right circular cylinder, the length of the long right circular cylinder is adapted to the depth of the slot formed in the housing of the water inlet ball valve, the front end of the housing is provided with a cylindrical plug having an outer diameter smaller than that of the housing, the outer wall of the front portion of the housing is provided with external threads, the outer wall of the rear portion of the housing is provided with a plurality of square faces, the through hole in the housing is axially arranged in a penetrating manner along the plug and the housing, both ends of the through hole are open, and the diameters of the front section, the middle section and the rear section of the through hole are gradually enlarged.
3. The sensor for detecting the sealing performance of the water inlet ball valve as claimed in claim 1, wherein the housing is provided with a drain hole communicated with the through hole.
4. The sensor for detecting the sealing performance of the water inlet ball valve according to claim 1, wherein the telescopic connecting rod is a long straight rod, the diameter of the telescopic connecting rod is smaller than the diameter of the rear section of the through hole, one end of the telescopic connecting rod is connected with one end of the limiting rod through a stop, the other end of the limiting rod is connected with the inner end of the guide rod, the limiting rod is located in the middle section of the through hole of the housing, the diameter of the limiting rod is matched with the diameter of the middle section of the through hole, the guide rod is a short straight rod, the diameter of the guide rod is matched with the diameter of the front section of the through hole, the outer end of the guide rod extends outwards from the front section of the through hole of the housing and then is connected with the sealing cavity of the water inlet ball valve, and the other end of the telescopic connecting rod passes through the through hole of the housing and then extends outwards and then is connected with the stroke sensing block.
5. A sensing device for detecting the sealing performance of a water inlet ball valve as claimed in claim 2, wherein said telescopic connecting rod is a long rod which is located in the rear portion of the through hole of the housing and has a diameter smaller than the diameter of the rear portion of the through hole, the front end of the telescopic connecting rod is provided with a stop rod coaxially connected thereto, the stop rod is located in the middle portion of the through hole of the housing and has a diameter corresponding to the diameter of the middle portion of the through hole, the guiding rod is a short rod which is located in the front portion of the through hole of the housing and has a diameter corresponding to the diameter of the front portion of the through hole, the rear end of the guiding rod is coaxially connected to the front end of the stop rod, and the front end of the guiding rod extends outwardly beyond the plug at the front end of the housing.
6. The sensor for detecting the sealing performance of the water inlet ball valve according to claim 1, wherein the spring is sleeved on the telescopic connecting rod and located at the rear section of the through hole of the housing, one end of the spring is fixed on the telescopic connecting rod through a stop block, the other end of the spring is fixed on the telescopic connecting rod through a gland, and the gland is in threaded connection with the through hole of the housing.
7. The sensor for detecting the sealing performance of a water inlet ball valve as claimed in claim 1, wherein the sealing members of the housing are a plurality of sealing rings, and the plurality of sealing rings are sleeved in a plurality of annular grooves on the outer wall of the plug at the front end of the housing.
8. The sensor for detecting the sealing performance of the water inlet ball valve as claimed in claim 1, wherein the sealing member of the guide rod is a sealing sleeve which is sleeved on the guide rod and is coupled with the front section of the through hole of the housing.
9. The sensor for detecting the sealing performance of the water inlet ball valve according to claim 1, wherein the signal sensor is connected to the housing through a bracket, the bracket comprises a flat plate which is arranged at one end of the housing and is parallel to the housing, a folded plate which is perpendicular to the flat plate is arranged at the inner end of the flat plate, a circular ring which is clamped with a ring groove corresponding to the rear end of the housing is arranged at the lower end of the folded plate, a waist hole is arranged on the flat plate, the signal sensor is fixed on the waist hole through a screw and a nut which are connected with the signal sensor, the sensing end of the signal sensor is in signal connection with a stroke sensing block arranged on the telescopic connecting rod, and the signal sensor is connected with the controller in a wired or wireless mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221857876.4U CN218511975U (en) | 2022-07-19 | 2022-07-19 | Detect ball valve sealing performance of intaking and use sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221857876.4U CN218511975U (en) | 2022-07-19 | 2022-07-19 | Detect ball valve sealing performance of intaking and use sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218511975U true CN218511975U (en) | 2023-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221857876.4U Active CN218511975U (en) | 2022-07-19 | 2022-07-19 | Detect ball valve sealing performance of intaking and use sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218511975U (en) |
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2022
- 2022-07-19 CN CN202221857876.4U patent/CN218511975U/en active Active
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