Water testing valve capable of being switched between manual operation and electric operation and water testing device

Abstract

The utility model discloses a water testing valve capable of being switched between a manual mode and an electric mode and a water testing device. The water testing valve capable of being manually and electrically switched comprises a control box, a ball valve assembly, a motor, a manual rotating shaft, a first limiting sleeve and a second limiting sleeve, wherein the ball valve assembly comprises a ball body, a valve rod and a switching sleeve. The electric output shaft is axially and detachably spliced with the conversion sleeve, the first limiting sleeve is connected with the second limiting sleeve, the first limiting sleeve is axially connected with the manual rotating shaft, and the second limiting sleeve is axially connected with the conversion sleeve. Switching between manual control and electric control can be achieved only by pressing the manual rotating shaft and canceling pressing of the manual rotating shaft, and the process of the manual water testing and electric water testing switching device is simplified. The water testing device comprises a water testing pipe, a pressure testing piece and the water testing valve, can be arranged on a water supply pipe network, is used for testing whether the water supply pipe network can be normally started or not, and can also detect the water pressure at the tail end of the pipe.

Description

Technical Field

[0001] The present application relates to the field of consumer equipment, and in particular to a water testing valve and a water testing device which can be switched manually and electrically. Background Art

[0002] The automatic sprinkler fire extinguishing system is currently recognized as the most effective self-rescue fire extinguishing method in the world. The system has the advantages of safety, reliability, economy, practicality, and high success rate of fire extinguishing. The automatic sprinkler fire extinguishing system consists of sprinkler heads, water flow alarm devices, wet alarm valve groups, control valves, water testing devices, pipelines, and water supply facilities.

[0003] The water test device is one of the important components of the automatic sprinkler fire extinguishing system. It is installed at the end of the automatic sprinkler fire extinguishing system network or partition network to test the reliability of the automatic sprinkler fire extinguishing system, test whether the system can reliably alarm and start normally under the most unfavorable conditions of opening a sprinkler, test the water filling time of the dry system and pre-action system, and detect the static pressure and dynamic pressure at the end of the system sprinkler. After the water test device is turned on, the sprinkler with the minimum flow coefficient on the same floor or in the fire zone is started to test whether the water flow indicator, alarm valve, pressure switch, hydraulic alarm are working normally, whether the matching pipeline is unobstructed, and the working pressure of the sprinkler at the most unfavorable point.

[0004] Existing electric water testing devices are usually equipped with manual water testing parts, which include a manual water testing valve, a pressure gauge and a water inlet pipe. The water inlet pipe is connected to the water inlet end of the electric water testing device. The manual water testing valve and the pressure gauge are installed on the water inlet pipe, and the manual water testing valve is in a normally open state. When the electric water testing valve of the electric water testing device cannot work normally, such as when the power is off, and the manual water testing part needs to be opened, it is usually necessary to first turn the manual water testing valve to a closed state, then remove the electric water testing valve from the water testing pipe, and then open the manual water testing valve to complete the water testing work. The switching process between manual and electric water testing is relatively cumbersome, which reduces the efficiency of water testing. Utility Model Content

[0005] In order to simplify the process of switching between manual and electric water testing, the present application provides a water testing valve and a water testing device that can be switched between manual and electric.

[0006] On the one hand, the present application provides a water testing valve that can be switched between manual and electric operation, which adopts the following technical solution:

[0007] A water testing valve capable of manual and electric switching comprises a control box and a ball valve assembly;

[0008] The ball valve assembly includes a valve stem and a ball, the ball is used to be installed in a water test pipe and control the water flow, the valve stem is connected to the ball, the valve stem passes through the left side wall of the control box and enters the inner cavity of the control box, a conversion sleeve is sleeved on one end of the valve stem away from the ball, the conversion sleeve is circumferentially fixedly connected to the valve stem, and axially slidably connected to the valve stem, and an elastic support is provided on one end of the conversion sleeve close to the ball, and the elastic support is used to axially support the conversion sleeve;

[0009] The inner cavity of the control box is provided with an electric control unit and a manual control unit, the electric control unit includes a circuit control board and a motor, the circuit control board is used to control the motor to be turned on or off, the output shaft of the motor is circumferentially fixedly connected to the conversion sleeve and axially detachably spliced ​​with the conversion sleeve;

[0010] The manual control unit includes a manual rotating shaft, the manual rotating shaft is gear-connected to the conversion sleeve, and the manual rotating shaft is exposed on the right side wall of the control box;

[0011] A first limiting sleeve is sleeved at the connection between the output shaft of the motor and the conversion sleeve, the first limiting sleeve and the output shaft of the motor are rotatably connected in the circumferential direction, the first limiting sleeve and the conversion sleeve are abutted, a second limiting sleeve is sleeved on the manual rotating shaft, the second limiting sleeve is rotatably connected to the manual rotating shaft in the circumferential direction and fixedly connected in the axial direction, the circumferential side wall of the first limiting sleeve protrudes outward toward the second limiting sleeve to form a limiting connecting block, and the limiting connecting block is connected to the second limiting sleeve.

[0012] By adopting the above technical solution, when the water testing device is electrically controlled, the opening and closing of the motor is controlled by the circuit control board. When the motor is turned on, the output shaft of the motor rotates forward and drives the conversion sleeve to rotate, the conversion sleeve drives the valve stem to rotate, the valve stem drives the ball to rotate so that water flows in the water testing pipe. When the motor is turned off, the output shaft of the motor rotates reversely and drives the conversion sleeve to rotate, the conversion sleeve drives the valve stem to rotate, and the valve stem drives the ball to rotate to block the water flow in the water testing pipe.

[0013] When it is necessary to switch from the electric control water testing mechanism to the manual water testing mechanism, you only need to press the manual rotating shaft exposed on the right side wall of the control box. At the same time, the second limit sleeve arranged on the manual rotating shaft will drive the first limit sleeve to slide toward the controlled side wall to separate the conversion sleeve from the motor output shaft, and then rotate the manual rotating shaft. The manual rotating shaft can drive the conversion sleeve to rotate forward or reverse through gear transmission, and the conversion sleeve then drives the valve stem to rotate forward or reverse, and the valve stem then drives the ball to rotate forward or reverse to realize the water flow interruption in the water testing pipe.

[0014] When the manual water testing mechanism needs to be switched to the electric water testing mechanism, it is only necessary to stop applying pressure to the manual shaft. At this time, the elastic support on the conversion sleeve will drive the conversion sleeve to slide along the axis of the valve stem toward the right wall of the control box. After the motor is turned on, the output shaft of the motor rotates and enters the conversion sleeve. The output shaft of the motor and the conversion sleeve are again connected in a circumferential fixed manner and in an axial sliding manner. At this time, the water testing mechanism resumes electric control.

[0015] With such arrangement, the switching between manual control and electric control can be achieved simply by pressing the manual shaft and releasing the pressing of the manual shaft, which simplifies the process of switching the device between manual water testing and electric water testing and improves the efficiency of water testing.

[0016] Optionally, the end surface of the conversion sleeve away from the sphere is concave to form a first limiting groove, and the first limiting sleeve is arranged in the first limiting groove;

[0017] Optionally, the end surface of the conversion sleeve away from the motor is concave to form a second limit groove, and the elastic support member is a return spring sleeved on the valve stem, one end of the return spring abuts against the bottom of the second limit groove, and the other end abuts against the left inner wall of the control box.

[0018] By adopting the above technical solution, when the first limit sleeve slides toward the left wall of the control box, it can evenly apply force toward the left wall of the control box to the conversion sleeve to drive the conversion sleeve to move toward the left wall of the control box, so as to separate the conversion sleeve from the output shaft of the motor. The first limit sleeve and the conversion sleeve can synchronously slide toward the left wall of the control box along the axial direction of the valve stem, which improves the conversion stability of the water testing device from electric control to manual control, and also realizes that the first limit sleeve and the conversion sleeve synchronously slide toward the right wall of the control box along the axial direction of the valve stem. When switching from manual to electric, the water testing shaft only needs to pass through the first limit sleeve to quickly penetrate the conversion sleeve, which improves the conversion stability of the water testing device from manual control to electric control.

[0019] The reset spring abuts against the bottom of the second limit groove, which can better support the conversion sleeve axially. When the manual shaft drives the conversion sleeve to slide along the axial direction of the valve stem toward the left wall of the control box, the reset spring is compressed to store energy. When the manual shaft is not pressed, the reset spring releases energy and moves along the axial direction of the valve stem toward the right wall of the control box, driving the conversion sleeve to slide along the axis of the valve stem toward the right arm of the control box.

[0020] Optionally, a connecting pipe is provided on the left side wall of the control box in the direction of the motor, the valve stem is passed through the connecting pipe and extends to the outside of the control box, and the ball is connected to the extension of the valve stem and is located outside the control box;

[0021] By adopting the above technical solution, the valve stem is arranged in the connecting pipe, which can protect the valve stem.

[0022] Optionally, a limiting notch is provided at one end of the connecting tube away from the left side wall of the control box, and a limiting protrusion is provided at one end of the conversion sleeve away from the motor, the sliding path of the limiting protrusion along the axial direction of the valve stem passes through the limiting notch, and the central angle range of the limiting protrusion relative to the axis of the valve stem is smaller than the central angle range of the limiting notch relative to the axis of the valve stem, and the limiting protrusion rotates in the limiting notch and forms a rotation path.

[0023] By adopting the above technical solution, when the water test mechanism is manually controlled, the conversion sleeve slides toward the left wall of the control box, the limiting protrusion enters the limiting notch, and when the manual shaft is rotated, the manual shaft drives the conversion sleeve to rotate, the limiting protrusion and the conversion sleeve rotate at the same time, and the conversion sleeve drives the valve stem to rotate to drive the ball to rotate to control the on and off of the water flow in the water test pipe. The limiting protrusion rotates in the limiting notch, limiting the rotation range of the manual shaft, so that the manual shaft can only reciprocate in the path of rotating the ball valve to open and close.

[0024] Optionally, a first convex tooth is circumferentially provided on the outer wall of the conversion sleeve, and a second convex tooth meshing with the first convex tooth is circumferentially provided on one end of the manual shaft close to the left side wall of the control box.

[0025] By adopting the above technical solution, the gear transmission of the manual rotating shaft and the conversion sleeve is realized, and the conversion sleeve can be driven to convert by rotating the manual rotating shaft.

[0026] Optionally, a manual switch sensing component is provided in the control box, and a ball valve opening sensing probe and a ball valve closing sensing probe are provided on the manual switch sensing component at intervals along the axial direction of the manual rotating shaft. An opening sensing protrusion is provided on the outer wall of the manual rotating shaft corresponding to the ball valve opening sensing probe, and a closing sensing protrusion is provided on the outer wall of the manual rotating shaft corresponding to the ball valve closing sensing probe. The opening sensing protrusion and the closing sensing protrusion are arranged opposite to each other based on the axis of the moving rotating shaft.

[0027] By adopting the above technical solution, when the opening sensing protrusion abuts against the ball valve opening sensing probe, the manual switch sensing component can transmit a ball valve opening signal, and when the closing sensing protrusion abuts against the ball valve closing sensing probe, the manual sensing component can transmit a ball valve closing signal.

[0028] Optionally, the outer diameter of the conversion sleeve at the first protruding tooth is twice the outer diameter of the manual rotating shaft at the second protruding tooth, the starting point of the rotation path corresponds to the ball valve closing position, the end point of the rotation path corresponds to the ball valve opening position, and the third central angle generated by the opening sensing protrusion and the closing sensing protrusion relative to the axis of the manual rotating shaft is twice the fourth central angle generated by the ball valve opening position and the ball valve closing position relative to the axis of the conversion sleeve.

[0029] By adopting the above technical solution, when the closing sensing protrusion of the manual rotating shaft abuts against the manual switch sensing component, the limit block is in the closed position of the ball valve. At this time, the ball still blocks the water flow in the water test tube. When the manual rotating shaft rotates until the opening sensing protrusion abuts against the manual switch sensing component, the limit block also rotates to the open position of the ball valve. At this time, the valve stem also drives the ball valve to rotate to allow water to flow in the water test tube.

[0030] Optionally, a limit ring is provided on the inner wall of the control box, and the limit ring is sleeved on the manual rotating shaft and is slidably connected to the manual rotating shaft.

[0031] By adopting the above technical solution, the limiting ring provides stable support for the limiting ring in the circumferential direction of the manual rotating shaft, thereby ensuring the stability of the manual rotating shaft in rotating around the circumference and sliding along the axis.

[0032] On the other hand, the present application provides a water testing device, which adopts the following technical solution:

[0033] A water testing device includes a pressure testing piece, a water testing pipe and the above-mentioned water testing valve, wherein the water testing valve is connected to the water testing pipe and is used to control the water flow in the water testing pipe. The pressure testing piece is connected to the water testing pipe and is used to detect the water pressure in the water testing pipe.

[0034] By adopting the above technical solution, the water testing device can manually control the water flow in the water testing pipe, and can also electrically control the water flow end in the water testing pipe. When the water flow in the water testing pipe is flowing, the pressure testing piece can test the water pressure in the water testing pipe at this time.

[0035] Optionally, the water testing device is used to be installed at the end of a water supply network.

[0036] By adopting the above technical solution, when the water testing device is installed at the end of the water supply network, it can detect whether the water supply network can reliably alarm and start normally under the most unfavorable conditions of opening one nozzle, and can also detect the water pressure at the end of the pipe.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. Through the gear transmission connection between the manual rotating shaft and the conversion sleeve, the conversion sleeve and the valve stem are circumferentially fixedly connected, thus realizing the manual control of the water testing mechanism.

[0039] 2. The electric control water testing mechanism is realized by the circumferential fixed connection between the motor output shaft and the conversion sleeve, and the circumferential fixed connection between the conversion sleeve and the valve stem.

[0040] 3. By axially detachably splicing the electric output shaft and the conversion sleeve, connecting the first limit sleeve and the second limit sleeve, axially fixedly connecting the first limit sleeve and the manual rotating shaft, and connecting the second limit sleeve and the conversion sleeve, the switching between manual control and electric control can be achieved simply by pressing the manual rotating shaft and releasing the pressing of the manual rotating shaft, thereby simplifying the process of switching the device between manual water testing and electric water testing and improving the efficiency of water testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The present invention is a schematic diagram of the structure of a water testing valve which can be switched between manual and electric operation.

[0042] Figure 2 It is a local explosion test valve that can be switched manually and electrically. Figure 1 .

[0043] Figure 3 It is a local explosion test valve that can be switched manually and electrically. Figure 2 .

[0044] Figure 4 It is a cross-sectional view of a water testing device.

[0045] Figure 5 It is a structural schematic diagram of a water testing device.

[0046] Explanation of the accompanying drawings: 1. control box; 2. ball valve assembly; 21. valve stem; 22. ball; 23. conversion sleeve; 231. first limit groove; 232. second limit groove; 233. first convex tooth; 24. elastic support member; 25. limit protrusion; 3. connecting pipe; 31. limit notch; 4. electric control unit; 41. circuit control board; 42. motor; 5. manual control unit; 51. manual shaft; 511. second convex tooth; 52. first limit sleeve; 53. limit connecting block; 54. second limit sleeve; 55. opening sensing protrusion; 56. closing sensing protrusion; 6. manual switch sensing member; 61. ball valve opening sensing probe; 62. ball valve closing sensing probe; 7. ball valve opening position; 8. ball valve closing position; 9. limit ring; 101. pressure test piece; 102. water test pipe; 103. water test connecting pipe. DETAILED DESCRIPTION

[0047] The present application is further described in detail below in conjunction with the accompanying drawings.

[0048] The present application embodiment discloses a water testing valve that can be switched between manual and electric operation. Figure 1 The water testing valve capable of manual and electric conversion comprises a control box 1 and a ball valve assembly 2. The ball valve assembly 2 is partially arranged on the outside of the control box 1 and partially arranged in the inner cavity of the control box 1.

[0049] Reference Figure 1 and Figure 2 The ball valve assembly 2 includes a valve stem 21, a ball 22 for installation in the water test pipe 102, and a conversion sleeve 23. One end of the valve stem 21 is connected to the ball 22, and the other end is connected to the conversion sleeve 23. A flow hole is provided on the ball 22 of the ball valve. When the flow hole is rotated to a state of being connected to the water test pipe 102, water flows in the water test pipe 102. When the flow hole is rotated 90°, the flow hole of the ball 22 is not connected to the water test pipe 102, and the ball 22 cuts off the water flow in the water test pipe 102.

[0050] A connecting pipe 3 is provided on the left side wall of the control box 1 toward the right side wall. The valve stem 21 is provided in the control box 1 and is arranged through the connecting pipe 3 and extends to the outside of the control box 1. The ball 22 is connected to the extension of the valve stem 21 and is located outside the control box 1. In different embodiments, the connection between the valve stem 21 and the ball 22 can be in different ways. As an example, a rectangular clamping groove is provided on the ball 22. The end surface of one end of the valve stem 21 used for connecting with the ball 22 is convexly formed with a rectangular clamping protrusion adapted to the clamping groove, and the clamping protrusion is arranged in the clamping groove. When the valve stem 21 rotates along the axis, the ball 22 can also rotate synchronously through the cooperation of the clamping protrusion and the clamping groove. The valve stem 21 passes through the left side wall of the control box 1 and enters the inner cavity of the control box 1. The end of the valve stem 21 away from the ball 22 is sleeved with a conversion sleeve 23, which is fixedly connected to the valve stem 21 in the circumferential direction and slidably connected to the valve stem 21 in the axial direction.

[0051] Reference Figure 2 and Figure 3 Specifically, the inner wall of the conversion sleeve 23 encloses a valve stem hole, and the end surface shape of one end of the valve stem 21 used for connecting with the conversion sleeve 23 is adapted to the valve stem hole formed on the inner wall of the conversion sleeve 23. In different embodiments, the inner wall of the conversion sleeve 23 can enclose a valve stem hole with different cross-sectional shapes, as long as it can limit the circumferential rotation of the valve stem 21 inside the conversion sleeve 23, it can be a square hole, a waist-shaped hole, or a tangential circular hole, but it cannot be a perfect circular hole.

[0052] refer to Figure 1 and Figure 2In order to electrically control the rotation of the ball valve assembly 2, an electric control unit 4 is specifically but not limitedly proposed. The electric control unit 4 is arranged in the inner cavity of the control box 1, and includes a circuit control board 41 and a motor 42. The circuit control board 41 is used to control the motor 42 to be turned on or off. The output shaft of the motor 42 is circumferentially fixedly connected to the conversion sleeve 23 and is axially detachably spliced ​​with the conversion sleeve 23.

[0053] Specifically, the inner wall of the conversion sleeve 23 can enclose a motor 42 connection hole for connecting to the output shaft of the motor 42. The motor 42 connection hole needs to limit the circumferential rotation of the output shaft of the motor 42 inside the conversion sleeve 23. The motor 42 connection hole can be a square hole, a waist-shaped hole, or a tangential circle. The end face shape of one end of the output shaft of the motor 42 used for connecting to the conversion sleeve 23 is adapted to the cross-sectional shape of the motor 42 connection hole. It is worth noting that the conversion sleeve 23 can slide toward the left wall or right wall of the control box 1 along the axial direction of the valve stem 21, so the motor 42 connection hole is connected to the valve stem hole. In order to allow the valve stem 21 to pass through the valve stem hole and enter the motor 42 connection hole, the cross-section of the motor 42 connection hole must be greater than or equal to the cross-section of the valve stem hole.

[0054] refer to Figure 1 In order to manually control the rotation of the ball valve assembly 2, a manual control unit 5 is specifically but not limitedly proposed. The manual control unit 5 includes a manual shaft 51. One end of the manual shaft 51 is exposed at the right side wall of the control box 1, and the outer wall of the other end is circumferentially provided with a second convex tooth 511. The outer wall of the conversion sleeve 23 is provided with a first convex tooth 233 engaged with the second convex tooth 511. Rotating the manual shaft 51 can drive the conversion sleeve 23 to rotate.

[0055] refer to Figure 1 and Figure 2When the manual rotating shaft 51 drives the conversion sleeve 23 to rotate, because the conversion sleeve 23 and the output shaft of the motor 42 are circumferentially fixedly connected, the conversion sleeve 23 needs to be separated from the output shaft of the motor 42 first. As an example, a first limiting sleeve 52 is provided at one axial end of the conversion sleeve 23, and the first limiting sleeve 52 is axially connected to the conversion sleeve 23. A second limiting sleeve 54 is sleeved on the manual rotating shaft 51, and the second limiting sleeve 54 is rotatably connected to the manual rotating shaft 51 in the circumferential direction and fixedly connected in the axial direction. The circumferential side wall of the first limiting sleeve 52 protrudes toward the second limiting sleeve 54 to form a limiting connection block 53, and the limiting connection block 53 is connected to the second limiting sleeve 54. In different embodiments, the first limiting sleeve 52 can be axially connected to the conversion sleeve 23 in different ways. A mounting groove matching the wall thickness of the first limiting sleeve 52 can be provided on the end surface of the conversion sleeve 23. The first limiting sleeve 52 is clamped in the mounting groove and does not separate from the conversion sleeve 23 in the axial direction, but can be rotatably connected to the conversion sleeve 23 in the circumferential direction. In different embodiments, the second limiting sleeve 54 can be circumferentially rotatably connected to the manual shaft 51 in different ways and axially fixedly connected. As an example, an annular groove is circumferentially provided at the connection between the manual shaft 51 and the second limiting sleeve 54, and a clamping interface is provided on the side wall of the second limiting sleeve 54. The second limiting sleeve 54 is clamped in the annular groove.

[0056] In different embodiments, the first limiting sleeve 52 can be sleeved on the output shaft of the motor 42, or can be sleeved on the valve stem 21. When the first limiting sleeve 52 is sleeved on the output shaft of the motor 42, the cross-sectional shape of the through hole formed by the inner wall of the first limiting sleeve 52 is a perfect circular hole, and the diameter of the hole is greater than or equal to the maximum outer diameter of one end of the output shaft of the motor 42 connected to the conversion sleeve 23, so as to realize the rotational connection between the first limiting sleeve 52 and the output shaft of the motor 42. Such a configuration can ensure that when the output shaft of the motor 42 rotates, the first limiting sleeve 52 is not driven to rotate, so as to avoid the output shaft of the motor 42 being stuck due to the connection between the first limiting sleeve 52 and the second limiting sleeve 54. When the first limiting sleeve 52 is sleeved on the valve stem 21, the cross-sectional shape of the through hole formed by the inner wall of the first limiting sleeve 52 is a perfect circular hole, and the diameter of the hole is greater than or equal to the maximum outer diameter of the end of the valve stem 21 used for connecting with the conversion sleeve 23, so as to realize the rotational connection between the first limiting sleeve 52 and the valve stem 21. In this way, when the valve stem 21 rotates, the first limiting sleeve 52 is not driven to rotate, so as to avoid the valve stem 21 being unable to rotate due to the connection between the first limiting sleeve 52 and the second limiting sleeve 54. It is worth mentioning that at this time, the end of the manual shaft 51 provided with the first protruding tooth 233 needs to extend toward the left wall of the control box 1, and the second limiting sleeve 54 is sleeved on the extension portion.

[0057] Reference Figure 1 and Figure 3In order to realize the conversion from manual control to electric control, when no force is applied to the manual rotating shaft 51 toward the left wall of the control box 1, the conversion sleeve 23 should be able to slide along the axis of the valve stem 21 toward the right arm of the control box 1, so that the output shaft of the motor 42 cooperates with the conversion sleeve 23 to realize the circumferential fixed connection. Specifically but not limitingly, an elastic support member 24 is proposed, which is a return spring sleeved on the valve stem 21, one end of the return spring abuts against the conversion sleeve 23, and the other end abuts against the left inner wall of the control box 1. Specifically, the end surface of the conversion sleeve 23 away from the motor 42 is concave to form a second limiting groove 232, one end of the return spring abuts against the bottom of the second limiting groove 232, and the return spring abuts against the bottom of the second limiting groove 232, which can better support the conversion sleeve 23 along the axis of the valve stem 21. When the manual rotating shaft 51 drives the conversion sleeve 23 to slide toward the left wall of the control box 1, the return spring is compressed to store energy. When the manual rotating shaft 51 is not pressed, the return spring releases energy and moves along the axis of the valve stem 21 toward the right wall of the control box 1 , driving the conversion sleeve 23 to slide along the axis of the valve stem 21 toward the right arm of the control box 1 .

[0058] Reference Figure 1 and Figure 3 In order to allow the manual rotating shaft 51 to reciprocate only in the path of the ball valve rotating to open and rotating to close, a limiting notch 31 is opened at the end of the connecting pipe 3 away from the control box 1, and a limiting protrusion 25 is arranged at the end of the conversion sleeve 23 away from the motor 42. The sliding path of the limiting protrusion 25 along the axial direction of the valve stem 21 passes through the limiting notch 31, and the first central angle range of the limiting protrusion 25 relative to the axis of the valve stem 21 is smaller than the second central angle range of the limiting notch 31 relative to the axis of the valve stem 21. The limiting protrusion 25 rotates in the limiting notch 31 and forms a rotation path. The rotation path of the limiting protrusion 25 is 1 / 4 of an arc. When the water testing mechanism is manually controlled, the conversion sleeve 23 slides toward the left wall of the control box 1, and the limiting protrusion 25 enters the limiting notch 31. When the manual rotating shaft 51 is rotated, the manual rotating shaft 51 drives the conversion sleeve 23 to rotate, and the limiting protrusion 25 and the conversion sleeve 23 rotate at the same time. The conversion sleeve 23 drives the valve stem 21 to rotate 90° clockwise or counterclockwise to drive the ball 22 to rotate 90° to achieve the circulation or blocking of the water flow in the water testing tube 102.

[0059] Reference Figure 1 and 4In order to enable the water testing valve to send out a ball valve opening signal and a ball valve closing signal when the water testing mechanism is manually controlled, a manual switch sensing component 6 is arranged in the control box 1. A ball valve opening sensing probe 61 and a ball valve closing sensing probe 62 are arranged on the manual switch sensing component 6 along the axial direction of the manual rotating shaft 51 at intervals. An opening sensing protrusion 55 is arranged on the outer wall of the manual rotating shaft 51 corresponding to the ball valve opening sensing probe 61, and a closing sensing protrusion 56 is arranged on the outer wall of the manual rotating shaft 51 corresponding to the ball valve closing sensing probe 62. The opening sensing protrusion 55 and the closing sensing protrusion 56 are arranged opposite to each other based on the axis of the dynamic rotating shaft. When the opening sensing protrusion 55 abuts against the ball valve opening sensing probe 61, the manual switch sensing component 6 can transmit a ball valve opening signal. When the closing sensing protrusion 56 abuts against the ball valve closing sensing probe 62, the manual sensing component can transmit a ball valve closing signal.

[0060] Specifically, the manual switch sensor 6 should send out a ball valve opening signal and a ball valve closing signal in conjunction with the rotation of the ball valve assembly 2 in order to accurately determine the opening and closing of the ball valve. As an example, the outer diameter of the conversion sleeve 23 at the first convex tooth 233 is twice the outer diameter of the manual rotating shaft 51 at the second convex tooth 511. The starting point of the rotation path corresponds to the ball valve closing position 8, and the end point of the rotation path corresponds to the ball valve opening position 7. The third central angle generated by the opening sensing protrusion 55 and the closing sensing protrusion 56 relative to the axis of the manual rotating shaft 51 is 180°, and the third central angle is twice the fourth central angle generated by the ball valve opening position 7 and the ball valve closing position 8 relative to the axis of the conversion sleeve 23. When the closing sensing protrusion 56 of the manual rotating shaft 51 abuts against the manual switch sensing component 6, the limit block is in the ball valve closing position 8. At this time, the ball 22 still blocks the water flow in the test water pipe 102. When the manual rotating shaft 51 rotates until the opening sensing protrusion 55 abuts against the manual switch sensing component 6, the limit block also rotates to the ball valve opening position 7. At this time, the valve stem 21 also drives the ball valve to rotate to allow water to flow in the test water pipe 102.

[0061] In order to ensure the stability of the manual rotating shaft 51 in rotating around the circumference and sliding along the axis, a limit ring 9 is further provided on the inner wall of the control box 1. The limit ring 9 is sleeved on the manual rotating shaft 51 and is slidably connected to the manual rotating shaft 51. The limit ring 9 provides stable support for the manual rotating shaft 51 in the circumferential direction.

[0062] The present application also discloses a water testing device. Figure 4 and Figure 5The water testing device includes a pressure test piece 101, a water testing pipe 102 and a water testing valve which can be switched between manual and electric. The water testing valve is connected to the water testing pipe 102 and is used to control the water flow in the water testing pipe 102. The pressure test piece 101 is connected to the water testing pipe 102 and is used to detect the water pressure in the water testing pipe 102. The water testing pipe 102 is arranged on the left side of the control box 1, and a water testing connection pipe 103 is extended toward the left side wall of the control box 1. The ball 22 passes through the water testing connection pipe 103 and is arranged in the water testing pipe 102. The pressure test piece 101 is connected to the side wall of the water testing pipe 102. In different embodiments, the pressure test piece 101 can be of different structures, and can be a pressure gauge (not shown in the figure) or a pressure sensor. The pressure sensor is electrically connected to the circuit control board 41 of the water testing valve and is used to detect the water pressure in the water testing pipe 102. Specifically, the water testing device 10 can be installed in a water supply network to detect whether the water supply network can reliably alarm and start normally under the most unfavorable conditions of opening a nozzle, and can also be used to detect the water pressure at the end of the pipe.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water testing valve which can be switched between manual and electric operation, characterized in that: It comprises a control box (1) and a ball valve assembly (2); The ball valve assembly (2) comprises a valve stem (21) and a sphere (22), wherein the sphere (22) is used to be installed in a water test pipe (102) and control the flow of water. The valve stem (21) and the sphere (22) are connected, and the valve stem (21) passes through the left side wall of the control box (1) and enters the inner cavity of the control box (1). A conversion sleeve (23) is sleeved on the end of the valve stem (21) away from the sphere (22). The conversion sleeve (23) is circumferentially fixedly connected to the valve stem (21) and axially slidably connected to the valve stem (21). An elastic support member (24) is provided on the end of the conversion sleeve (23) close to the sphere (22), and the elastic support member (24) is used to axially support the conversion sleeve (23); The inner cavity of the control box (1) is provided with an electric control unit (4) and a manual control unit (5); the electric control unit (4) comprises a circuit control board (41) and a motor (42); the circuit control board (41) is used to control the motor (42) to be turned on or off; the output shaft of the motor (42) is circumferentially fixedly connected to the conversion sleeve (23) and axially detachably spliced ​​with the conversion sleeve (23); The manual control unit (5) comprises a manual rotating shaft (51), the manual rotating shaft (51) is connected to the conversion sleeve (23) by gear transmission, and the manual rotating shaft (51) is exposed on the right side wall of the control box (1); A first limiting sleeve (52) is sleeved at the connection between the output shaft of the motor (42) and the conversion sleeve (23); the first limiting sleeve (52) and the output shaft of the motor (42) are rotatably connected in the circumferential direction; the first limiting sleeve (52) and the conversion sleeve (23) are in abutment with each other; a second limiting sleeve (54) is sleeved on the manual rotating shaft (51); the second limiting sleeve (54) and the manual rotating shaft (51) are rotatably connected in the circumferential direction and fixedly connected in the axial direction; a circumferential side wall of the first limiting sleeve (52) protrudes outward toward the second limiting sleeve (54) to form a limiting connection block (53); and the limiting connection block (53) is connected to the second limiting sleeve (54).

2. The water testing valve capable of manual and electric switching according to claim 1, characterized in that: The end surface of the conversion sleeve (23) away from the spherical body (22) is concavely formed with a first limiting groove (231), and the first limiting sleeve (52) is arranged in the first limiting groove (231); And / or, the end surface of one end of the conversion sleeve (23) away from the motor (42) is concave to form a second limit groove (232), and the elastic support member (24) is a return spring sleeved on the valve stem (21), one end of the return spring abuts against the bottom of the second limit groove (232), and the other end abuts against the left inner wall of the control box (1).

3. The water testing valve capable of manual and electric switching according to claim 1, characterized in that: A connecting pipe (3) is provided on the left side wall of the control box (1) in the direction of the motor (42); the valve stem (21) is passed through the connecting pipe (3) and extends to the outside of the control box (1); the ball (22) is connected to the extension of the valve stem (21) and is located outside the control box (1).

4. The water testing valve capable of manual and electric switching according to claim 3 is characterized in that: A limiting notch (31) is provided at one end of the left side wall of the connecting tube (3) away from the control box (1), and a limiting protrusion (25) is provided at one end of the conversion sleeve (23) away from the motor (42). The limiting protrusion (25) passes through the limiting notch (31) along a sliding path in the axial direction of the valve stem (21), and the central angle range generated by the limiting protrusion (25) relative to the axis of the valve stem (21) is smaller than the central angle range generated by the limiting notch (31) relative to the axis of the valve stem (21). The limiting protrusion (25) rotates in the limiting notch (31) and forms a rotation path.

5. The water testing valve capable of manual and electric switching according to claim 4, characterized in that: The outer wall of the conversion sleeve (23) is circumferentially provided with a first convex tooth (233), and the manual shaft (51) is circumferentially provided with a second convex tooth (511) meshing with the first convex tooth (233) at one end of the left side wall of the control box (1).

6. The water testing valve capable of manual and electric switching according to claim 5, characterized in that: The control box (1) is provided with a manual switch sensor (6), and a ball valve opening sensor probe (61) and a ball valve closing sensor probe (62) are arranged on the manual switch sensor (6) at intervals along the axial direction of the manual rotating shaft (51). An opening sensor protrusion (55) is arranged on the outer wall of the manual rotating shaft (51) corresponding to the ball valve opening sensor probe (61), and a closing sensor protrusion (56) is arranged on the outer wall of the manual rotating shaft (51) corresponding to the ball valve closing sensor probe (62). The opening sensor protrusion (55) and the closing sensor protrusion (56) are arranged opposite to each other based on the axis of the manual rotating shaft.

7. The water testing valve capable of manual and electric switching according to claim 6, characterized in that: The outer diameter of the conversion sleeve (23) at the first convex tooth (233) is twice the outer diameter of the manual rotating shaft (51) at the second convex tooth (511); the starting point of the rotation path corresponds to the ball valve closing position (8); the end point of the rotation path corresponds to the ball valve opening position (7); and the central angle formed by the opening sensing protrusion (55) and the closing sensing protrusion (56) relative to the axis of the manual rotating shaft (51) is twice the central angle formed by the ball valve opening position (7) and the ball valve closing position (8) relative to the axis of the conversion sleeve (23).

8. The water testing valve capable of manual and electric switching according to claim 1, characterized in that: A limit ring (9) is provided on the inner wall of the control box (1); the limit ring (9) is sleeved on the manual rotating shaft (51) and is slidably connected to the manual rotating shaft (51).

9. A water testing device, characterized in that: It comprises a pressure test piece (101), a water test pipe (102) and a water test valve as claimed in any one of claims 1 to 7, wherein the water test valve is connected to the water test pipe (102), and the water test valve is used to control the water flow in the water test pipe (102); the pressure test piece (101) is connected to the water test pipe (102), and the pressure test piece (101) is used to detect the water pressure in the water test pipe (102).

10. The water testing device according to claim 9, characterized in that: The water testing device is used to be installed at the end of the water supply network.

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