Regulating valve with automatic locking mechanism

Abstract

The invention discloses a regulating valve with an automatic locking mechanism, which comprises a regulating valve body, a locking mechanism, a self-limiting mechanism, a first automatic clamping mechanism, a second automatic clamping mechanism and an indicating device, the upper surface of the regulating valve body is fixedly connected with a fixed sleeve, and the inner wall of the fixed sleeve is fixedly connected with a guide sleeve; and the inner wall of the guide sleeve is in threaded connection with a valve rod. Through the arrangement of the indicating device, the locking mechanism, the first automatic clamping mechanism, the second automatic clamping mechanism and the self-limiting mechanism, under the cooperation of the indicating device, the locking mechanism, the first automatic clamping mechanism, the second automatic clamping mechanism and the self-limiting mechanism, the opening degree of the adjusting valve body can be conveniently and accurately indicated; and meanwhile, the position of the rotating wheel can be conveniently limited and fixed, so that a user can conveniently and accurately adjust the opening degree of the adjusting valve body, the adjusting valve body can be prevented from being influenced by misoperation of the rotating wheel under the action of external force, and the safety of the adjusting valve body is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of regulating valves, and in particular to a regulating valve with an automatic locking mechanism. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. They are control components in fluid conveying systems and have functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion, or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. The regulating valve includes a valve housing, which is provided with a flow cavity, and is connected to the flow cavity with an inlet and an outlet for connecting the front pipeline and the rear pipeline. The valve housing is provided with a regulating valve stem for adjusting the cross-section of the flow cavity, and the regulating valve stem is threadedly connected to the valve housing.

[0003] The regulating valve is an extremely important part of the water pipe accessories. The regulating valve is divided into manual regulating valve and electric regulating valve. Compared with the electric regulating valve, the manual regulating valve has low production cost and is easy to maintain, so the manual regulating valve is widely used.

[0004] The manual regulating valve in the traditional structure still has certain shortcomings in use: Most manual regulating valves do not have a stroke indicator, while some regulating valves have a stroke indicator, but only use a scale to indicate. It is not accurate to observe the height of the valve core through the scale, and errors are prone to occur, which makes it inconvenient for users to accurately control the opening of the regulating valve, causing inconvenience to users. The regulating valve stem of the manual regulating valve is directly adjusted by rotating the wheel, so that the position of the valve core is adjusted according to the height of the regulating wheel. However, the current manual regulating valve lacks a locking structure, so the wheel is easily affected by external forces and rotates automatically or is easily turned open by misoperation, thereby causing the regulating valve to be abnormally opened or closed, affecting the working stability of the regulating valve and being inconvenient to use; Therefore, according to the problems existing in the use of the above regulating valve, it is necessary to design a regulating valve with an indication function and capable of automatically locking the position of the runner. Summary of the invention

[0005] The object of the present invention is to provide a regulating valve with an automatic locking mechanism, aiming to solve the problem in the prior art that the regulating valve is not convenient for accurately indicating the stroke of the valve core during use, so that the user cannot quickly know the opening degree of the regulating valve, and it is not convenient to automatically limit the position of the rotating wheel, so that the rotating wheel is easily rotated by external force, affecting the safety of the regulating valve and causing inconvenience in use.

[0006] One of the purposes of the present invention is achieved by the following technical solution: a regulating valve with an automatic locking mechanism, comprising a regulating valve body, a locking mechanism, a self-limiting mechanism, a first automatic locking mechanism, a second automatic locking mechanism and an indicating device: a fixed sleeve is fixedly connected to the upper surface of the regulating valve body, a guide sleeve is fixedly connected to the inner wall of the fixed sleeve, a valve stem is threadedly connected to the inner wall of the guide sleeve, a valve core is fixedly connected to the lower surface of the valve stem, and a rotating wheel is fixedly connected to the upper surface of the valve stem; a U-shaped fixing frame is installed on the outer surface of one side of the fixed sleeve, the indicating device is arranged on the upper surface of one side of the U-shaped fixing frame, the indicating device comprises an adjusting component and a detecting component, locking mechanisms are arranged on the inner walls of both sides of the U-shaped fixing frame, a self-limiting mechanism is arranged on one side of the locking mechanism, the self-limiting mechanism is composed of an arc rod and a self-clamping component, and the first automatic locking mechanism and the second automatic locking mechanism are both fixedly connected to one side of the self-limiting mechanism.

[0007] Such a setting makes it easy to accurately indicate the opening of the regulating valve body, to limit and fix the position of the rotary wheel, and to limit and fix any height of the rotary wheel adjustment, thereby preventing the rotary wheel from being easily rotated by external force when not in use, thereby causing the valve core to rise or fall and affect the use of the regulating valve body, effectively ensuring the working stability of the regulating valve body.

[0008] According to the regulating valve with an automatic locking mechanism, the regulating component includes a liquid storage tube, a cylinder, a piston, a liquid extraction tube, a vertical rod and a horizontal plate, the liquid extraction tube passes through the upper surface of the liquid storage tube and extends to the interior of the liquid storage tube, the horizontal plate is arranged on one side wall of the rotating wheel, and the detection component includes a photoelectric water level sensor, a PLC controller, an indicator light 1 and an indicator light 2, the photoelectric water level sensor is arranged on the inner bottom wall of the liquid storage tube, and the photoelectric water level sensor, the indicator light 1 and the indicator light 2 are all electrically connected to the PLC controller.

[0009] With such an arrangement, it is easy to accurately measure the opening height of the valve core through the adjustment component and the detection component, and when the valve core reaches the highest point and the lowest point, it can be indicated by indicator light 1 and indicator light 2, thereby facilitating the user to accurately adjust the opening of the regulating valve body.

[0010] According to the regulating valve with automatic locking mechanism, the height of the inner wall of the liquid storage tube is consistent with the height between the upper surface of the valve core and the top wall of the regulating valve body.

[0011] Such an arrangement ensures that the travel of the valve core is the same as the height of the liquid stored in the liquid storage tube, so that the travel of the valve core can be accurately adjusted by the liquid level in the liquid storage tube.

[0012] The cam is connected to the first support frame, the second support frame and the third support frame by a spring, and the cam is connected to the first support frame by a spring.

[0013] Such an arrangement makes it easy to limit and lock the position of the self-limiting mechanism, thereby facilitating the rotation wheel to be limited by the self-limiting mechanism, and is easy to use.

[0014] According to the regulating valve with an automatic locking mechanism, the outer surface of the arc rod is symmetrically provided with an arc slide rail, the number of the self-clamping components is two, and the two self-clamping components are symmetrically arranged on the outer surface of the arc rod, the self-clamping component includes a fixed rod fixedly connected to the inner wall of the arc slide rail, the outer surface of the fixed rod is slidably connected to a moving block, the outer surface of the fixed rod is movably connected to a second spring, one end of the second spring is fixedly connected to the inner wall of the arc slide rail, one side of the moving block is fixedly connected to a limiting plate, and the limiting plate is fixedly connected to the rotating sleeve.

[0015] With such an arrangement, the position of the rotating wheel can be easily limited and fixed at any time through the two self-clamping components, thereby preventing the rotating wheel from rotating automatically due to the influence of external forces, thereby ensuring the safety of the regulating valve body.

[0016] According to the regulating valve with automatic locking mechanism, the first automatic locking mechanism includes an inclined rod, a groove body, a U-shaped slide, a through hole, a rotating shaft and a locking plate, the sliding rod is slidingly connected to the U-shaped slide, the U-shaped slide is symmetrically arranged on the side wall of the groove body, the through hole is opened on the side wall of the groove body, the rotating shaft is rotatably connected to the inner wall of the through hole, the rotating shaft is fixedly connected to the locking plate, and a rotating block is equidistantly fixedly connected to the outer surface of one end of the rotating shaft, and the working principle and structure of the second automatic locking mechanism are consistent with the working principle and structure of the first automatic locking mechanism.

[0017] Such an arrangement can facilitate the control of the limit and opening of the locking mechanism, realize linkage, and facilitate operation.

[0018] According to the regulating valve with automatic locking mechanism, the U-shaped fixing frame is fixedly connected to a connecting frame on one side close to the locking mechanism, the connecting frame is fixedly connected to the locking mechanism, and the inclined rod is fixedly connected to an outer surface of one side of the connecting frame.

[0019] With such arrangement, the locking mechanism, the first automatic positioning mechanism and the second automatic positioning mechanism are supported and fixed by the connecting frame, thereby improving the stability of the locking mechanism, the first automatic positioning mechanism and the second automatic positioning mechanism.

[0020] According to the regulating valve with an automatic locking mechanism, a semicircular mounting plate is fixedly connected to one side of the U-shaped fixing frame, first threaded holes are equidistantly provided on one side of the semicircular mounting plate, a second threaded hole is provided on one side of the fixing sleeve close to the first threaded hole, and mounting rods are threadedly connected to the inner walls of the first threaded hole and the second threaded hole.

[0021] Such a configuration makes it easy to remove the U-shaped fixing frame from the fixing sleeve, thereby separating the U-shaped fixing frame from the regulating valve body, and then the regulating valve body can be disassembled and replaced separately. The regulating valve body can be disassembled and replaced separately by assembling, thereby reducing maintenance costs.

[0022] According to the regulating valve with an automatic locking mechanism, the center lines of the first threaded hole and the second threaded hole coincide with each other.

[0023] Such arrangement facilitates quick installation and removal of the mounting rod.

[0024] According to the regulating valve with automatic locking mechanism, the outer surface of the mounting rod is fixedly connected with a knob, and the outer surface of the knob is fixedly connected with an anti-slip sleeve.

[0025] Such an arrangement makes it easy to rotate the mounting rod, thereby facilitating the separation of the positioning block from the sliding rod, and can increase the friction force to play an anti-slip role, thereby facilitating the rotation of the knob.

[0026] The device can accurately indicate the opening of the regulating valve through the indicating device, and provide prompts in conjunction with the indicator light 1 and the indicator light 2, so that the user can accurately adjust the flow of the regulating valve body. Compared with the existing method of observing with naked eye scales, this method is more accurate and convenient. At the same time, with the linkage cooperation of the locking mechanism, the self-limiting mechanism, the first automatic locking mechanism and the second automatic locking mechanism, the rotary wheel in any position can be automatically locked, thereby achieving the purpose of locking and limiting the rotary wheel at any height, thereby avoiding the situation where the rotary wheel is easily twisted up or down by external force and affects the use of the regulating valve body. Compared with the existing limiting method, this method is more flexible and the limit locking is more convenient, and the position of the rotary wheel can be automatically locked without alignment, effectively improving the overall applicability and flexibility of the device.

[0027] The above scheme has the following beneficial effects: 1. Through the arrangement of the indicating device, the adjusting component and the detecting component, the travel of the valve core is the same as the height of the liquid stored in the liquid storage tube. Therefore, the amount of the liquid level in the liquid storage tube that is pumped into the cylinder will be determined by the amount of the valve core moving upward. By detecting the water level in the liquid storage tube through the detecting component, the moving height of the valve core can be accurately controlled. When the valve core moves to the lowest point and the highest point, it will be indicated by the indicator light 1 and the indicator light 2, so as to accurately control the opening of the regulating valve body. Compared with the existing method of observing with scales, the indication is more accurate and convenient.

[0028] 2. Through the setting of the locking mechanism, the self-limiting mechanism, the first automatic locking mechanism and the second automatic locking mechanism, with the cooperation of the locking mechanism, the self-limiting mechanism, the first automatic locking mechanism and the second automatic locking mechanism, the first limiting plate and the second limiting plate can limit and fix the position of the rotating wheel at any time following the adjustment of the height of the rotating wheel, thereby preventing the rotating wheel from easily rotating under the action of external force and affecting the use of the regulating valve body, thereby effectively ensuring the safety of the operation of the regulating valve body.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments; Figure 1 It is a schematic diagram of the overall structure of a regulating valve with an automatic locking mechanism of the present invention; Figure 2 It is a structural schematic diagram of a detection assembly of a regulating valve with an automatic locking mechanism according to the present invention; Figure 3 It is a structural schematic diagram of a U-shaped fixing frame of a regulating valve with an automatic locking mechanism according to the present invention; Figure 4 It is a structural schematic diagram of a limit plate of a regulating valve with an automatic locking mechanism according to the present invention; Figure 5 It is a structural schematic diagram of a locking mechanism of a regulating valve with an automatic locking mechanism according to the present invention; Figure 6 The present invention is a regulating valve with an automatic locking mechanism Figure 5 The enlarged structural diagram at A in the middle; Figure 7 It is a structural schematic diagram of a self-clamping assembly of a regulating valve with an automatic locking mechanism according to the present invention; Figure 8 It is a structural schematic diagram of a first automatic locking mechanism of a regulating valve with an automatic locking mechanism according to the present invention; Fig. 9 The present invention is a schematic structural diagram of a mounting rod of a regulating valve with an automatic locking mechanism.

[0031] Legend: 1. regulating valve body; 2. fixed sleeve; 3. guide sleeve; 4. valve stem; 5. valve core; 6. rotating wheel; 7. U-shaped fixing frame; 8. locking mechanism; 801. first supporting sleeve; 802. second supporting sleeve; 803. third supporting sleeve; 804. rotating sleeve; 805. clamping sleeve; 806. sliding block; 807. pressing block; 808. supporting rod; 809. first spring; 810. clamping block; 811. second slide groove; 812. sliding rod; 9. self-limiting mechanism; 91. arc rod; 911. arc slide rail; 92. self-clamping assembly; 921. fixed rod; 922. moving block; 923. second spring; 924. limiting plate; 10. first automatic clamping mechanism; 1001. inclined Rod; 1002, trough body; 1003, U-shaped slide; 1004, through hole; 1005, rotating shaft; 1006, positioning plate; 1007, rotating block; 11, second automatic positioning mechanism; 12, connecting frame; 13, semicircular mounting plate; 14, first threaded hole; 15, second threaded hole; 16, mounting rod; 17, knob; 18, anti-slip sleeve; 19, indicating device; 191, adjusting component; 1911, liquid storage tube; 1912, cylinder; 1913, piston; 1914, liquid extraction tube; 1915, vertical rod; 1916, horizontal plate; 192, detection component; 1921, photoelectric water level sensor; 1922, PLC controller; 1923, indicator light one; 1924, indicator light two. DETAILED DESCRIPTION

[0032] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0033] Reference Figure 1-9 A regulating valve with an automatic locking mechanism comprises a regulating valve body 1, a locking mechanism 8, a self-limiting mechanism 9, a first automatic positioning mechanism 10, a second automatic positioning mechanism 11 and an indicating device 19: a fixed sleeve 2 is fixedly connected to the upper surface of the regulating valve body 1, a guide sleeve 3 is fixedly connected to the inner wall of the fixed sleeve 2, a valve stem 4 is threadedly connected to the inner wall of the guide sleeve 3, a valve core 5 is fixedly connected to the lower surface of the valve stem 4, and a rotating wheel 6 is fixedly connected to the upper surface of the valve stem 4; a U-shaped fixing frame 7 is installed on the outer surface of one side of the fixed sleeve 2, an indicating device 19 is arranged on the upper surface of one side of the U-shaped fixing frame 7, the indicating device 19 comprises an adjusting component 191 and a detecting component 192, locking mechanisms 8 are arranged on the inner walls of both sides of the U-shaped fixing frame 7, a self-limiting mechanism 9 is arranged on one side of the locking mechanism 8, the self-limiting mechanism 9 is composed of an arc rod 91 and a self-clamping component 92, and the first automatic positioning mechanism 10 and the second automatic positioning mechanism 11 are both fixedly connected to one side of the self-limiting mechanism 9.

[0034] In this embodiment, it is convenient to accurately indicate the opening of the regulating valve body 1, to limit and fix the position of the rotating wheel 6, and to limit and fix any height of the rotating wheel 6, thereby preventing the rotating wheel 6 from being easily rotated by external force when not in use, thereby causing the valve core 5 to rise or fall and affect the use of the regulating valve body 1, and effectively ensuring the working stability of the regulating valve body 1 Specifically, the adjustment component 191 includes a liquid storage tube 1911, a cylinder 1912, a piston 1913, a liquid extraction tube 1914, a vertical rod 1915 and a horizontal plate 1916. The liquid extraction tube 1914 passes through the upper surface of the liquid storage tube 1911 and extends to the interior of the liquid storage tube 1911. The horizontal plate 1916 is arranged on a side wall of the rotating wheel 6. The detection component 192 includes a photoelectric water level sensor 1921, a PLC controller 1922, an indicator light 1 1923 and an indicator light 2 1924. The photoelectric water level sensor 1921 is arranged on the inner bottom wall of the liquid storage tube 1911. The photoelectric water level sensor 1921, the indicator light 1 1923 and the indicator light 2 1924 are all electrically connected to the PLC controller 1922.

[0035] In this embodiment, both the PLC controller 1922 and the photoelectric sensor 1921 are equipped with built-in batteries, which power the PLC controller 1922 and the photoelectric sensor 1921. One side of the cross plate 1916 is screwed to a limit ring, and the valve stem 4 is rotatably connected to the inner wall of the limit ring. When the valve stem 4 rotates, the limit ring does not rotate. When the valve stem 4 rises or falls, the cross plate 1916 is driven to move through the limit ring, so that the wheel 6 drives the piston 1913 to move in the cylinder 1912 through the cross plate 1916 and the vertical rod 1915, so that the opening height of the valve core 5 can be easily measured accurately through the adjustment component 191 and the detection component 192, and when the valve core 5 reaches the highest point and the lowest point, it can be indicated by the indicator light 1 1923 and the indicator light 2 1924, so that the user can accurately adjust the opening of the regulating valve body 1.

[0036] Specifically, the height of the inner wall of the liquid storage tube 1911 is consistent with the height between the upper surface of the valve core 5 and the inner top wall of the regulating valve body 1.

[0037] In this embodiment, the movement stroke of the valve core 5 is ensured to be the same as the height of the liquid stored in the liquid storage tube 1911 , so that the movement stroke of the valve core 5 can be accurately adjusted by the liquid level in the liquid storage tube 1911 .

[0038] Specifically, the locking mechanism 8 includes a first supporting sleeve 801, a second supporting sleeve 802 and a third supporting sleeve 803. A rotating sleeve 804 is rotatably connected between the first supporting sleeve 801 and the second supporting sleeve 802, and between the second supporting sleeve 802 and the third supporting sleeve 803. A clamping sleeve 805 is fixedly connected to the inner wall of the rotating sleeve 804. A slider 806 is slidably connected to the inner wall of the first supporting sleeve 801. A pressing block 806 is fixedly connected to one side of the slider 806. 7. A support rod 808 is fixedly connected to the inner wall of one side of the first support sleeve 801, and a first spring 809 is movably connected to the outer surface of the support rod 808. A clamping block 810 is fixedly connected to one side of the pressing block 807. A second sliding groove 811 is provided on the side wall of the first support sleeve 801 close to the U-shaped fixing frame 7. A sliding rod 812 is slidably connected to the inner wall of the second sliding groove 811. The sliding rod 812 is fixedly connected to the pressing block 807, and the clamping block 810 is plugged into the clamping sleeve 805.

[0039] In this embodiment, the locking mechanism 8 is used to limit and lock the position of the self-limiting mechanism 9, so that the rotating wheel 6 can be limited by the self-limiting mechanism 9, which is convenient to use.

[0040] Specifically, the outer surface of the arc rod 91 is symmetrically provided with an arc slide rail 911, and there are two self-clamping components 92, which are symmetrically arranged on the outer surface of the arc rod 91. The self-clamping component 92 includes a fixed rod 921 fixedly connected to the inner wall of the arc slide rail 911, and the outer surface of the fixed rod 921 is slidably connected to a moving block 922, and the outer surface of the fixed rod 921 is movably connected to a second spring 923, and one end of the second spring 923 is fixedly connected to the inner wall of the arc slide rail 911, and one side of the moving block 922 is fixedly connected to a limiting plate 924, and the limiting plate 924 is fixedly connected to the rotating sleeve 804.

[0041] In this embodiment, the two self-clamping components 92 are used to limit and fix the position of the rotor 6 at any time, thereby preventing the rotor 6 from rotating automatically due to external forces, thereby ensuring the safety of the regulating valve body 1.

[0042] Specifically, the first automatic locking mechanism 10 includes an inclined rod 1001, a groove body 1002, a U-shaped slide 1003, a through hole 1004, a rotating shaft 1005 and a locking plate 1006, the sliding rod 812 is slidingly connected to the U-shaped slide 1003, the U-shaped slide 1003 is symmetrically arranged on the side wall of the groove body 1002, the through hole 1004 is opened on the side wall of the groove body 1002, the rotating shaft 1005 is rotatably connected to the inner wall of the through hole 1004, the rotating shaft 1005 is fixedly connected to the locking plate 1006, and a rotating block 1007 is equidistantly fixedly connected to the outer surface of one end of the rotating shaft 1005. The working principle and structure of the second automatic locking mechanism 11 are consistent with the working principle and structure of the first automatic locking mechanism 10.

[0043] In this embodiment, the limiting and opening of the locking mechanism 8 can be easily controlled to achieve linkage, which is easy to operate.

[0044] Specifically, a connecting frame 12 is fixedly connected to one side of the U-shaped fixing frame 7 close to the locking mechanism 8 , the connecting frame 12 is fixedly connected to the locking mechanism 8 , and the inclined rod 1001 is fixedly connected to an outer surface of one side of the connecting frame 12 .

[0045] In this embodiment, the locking mechanism 8, the first automatic positioning mechanism 10 and the second automatic positioning mechanism 11 are supported and fixed by the connecting frame 12 to improve the stability of the locking mechanism 8, the first automatic positioning mechanism 10 and the second automatic positioning mechanism 11. Specifically, a semicircular mounting plate 13 is fixedly connected to one side of the U-shaped fixing frame 7, a first threaded hole 14 is equidistantly provided on one side of the semicircular mounting plate 13, a second threaded hole 15 is provided on one side of the fixing sleeve 2 close to the first threaded hole 14, and a mounting rod 16 is threadedly connected to the inner walls of the first threaded hole 14 and the second threaded hole 15.

[0046] Specifically, the center lines of the first threaded hole 14 and the second threaded hole 15 coincide with each other.

[0047] Specifically, a knob 17 is fixedly connected to the outer surface of the mounting rod 16 , and an anti-slip sleeve 18 is fixedly connected to the outer surface of the knob 17 .

[0048] In this embodiment, when the regulating valve body 1 needs to be disassembled and replaced separately, the knob 17 is rotated to drive the mounting rod 16 to be screwed out from the inner walls of the first threaded hole 14 and the second threaded hole 15, thereby removing the U-shaped fixing frame 7 from the fixing sleeve 2, and then the regulating valve body 1 can be disassembled and replaced from the pipeline. After the replacement is completed, the U-shaped fixing frame 7 is installed on the new regulating valve body 1, which reduces the replacement cost compared to the integrated disassembly and replacement.

[0049] Working principle: When the regulating valve body 1 needs to be opened, first, the rotating block 1007 on the outer surface of the rotating shaft 1005 of the first automatic locking mechanism 10 is rotated to drive the rotating shaft 1005 to rotate, thereby driving the locking plate 1006 to rotate upward, pressing the pressing block 807 to drive the slider 806 to slide on the inner wall of the first supporting sleeve 801, and at the same time drive the sliding rod 812 to slide on the inner wall of the second sliding groove 811 and disengage from the U-shaped slideway 1003, and drive the clamping block 810 to move toward the inner wall of the third supporting sleeve 803 to disengage from the two clamping sleeves 805, At the same time, the pressing block 807 squeezes the first spring 809, and when the sliding rod 812 moves into the U-shaped slideway 1003 of the second automatic locking mechanism 11, the sliding rod 812 will push the locking plate 1006 to rotate upward on the inner wall of the slot body 1002, and when the sliding rod 812 moves to the innermost wall of the U-shaped slideway 1003, the locking plate 1006 will automatically rotate downward to limit the sliding rod 812 in the U-shaped slideway 1003, thereby limiting the clamping block 810 in the third supporting sleeve 803, so that the two clamping sleeves 805 are no longer limited and fixed, and the rotating wheel 6 is unlocked; Afterwards, the rotating wheel 6 drives the valve stem 4 to move upward on the inner wall of the guide sleeve 3. When the rotating wheel 6 moves upward, it will push the two limit plates 924 to rotate upward on one side of the arc rod 91 and drive the two moving blocks 922 to move on the inner walls of the two arc slide rails 911 and squeeze the second spring 923, and at the same time drive the two rotating sleeves 804 to rotate upward, so that the two limit plates 924 are always in contact with the upper and lower surfaces of the rotating wheel 6. At the same time, the upward movement of the valve stem 4 will drive the piston 1913 to move upward in the cylinder 1912 through the horizontal plate 1916 and the vertical rod 1915. The negative pressure formed by the upward movement of the piston 1913 will pump liquid through The tube 1914 sucks the liquid in the liquid storage tube 1911 into the cylinder 1912, and the photoelectric water level sensor 1921 detects the liquid level in the liquid storage tube 1911, and transmits the signal to the PLC controller 1922. The PLC controller 1922 can display the liquid level height in the liquid storage tube 1911. The height of the movement of the valve core 5 can be known through the liquid level height, so as to know the opening of the regulating valve body 1. When the liquid level is not, that is, the valve core 5 is fully opened, the indicator light 1923 lights up for prompting. On the contrary, when the liquid level fills the liquid storage tube 1911, that is, the valve core 5 is completely closed, the indicator light 2 1924 lights up for prompting. Finally, when the rotating wheel 6 is adjusted to a suitable height, the rotating block 1007 on the outer surface of the rotating shaft 1005 of the second automatic locking mechanism 11 drives the locking plate 1006 to rotate upward on the inner wall of the groove body 1002 so that it is no longer in the position of the limiting slide bar 812. At this time, under the elastic action of the first spring 809, the pressing block 807 pops out from the inner wall of the first supporting sleeve 801, and at the same time drives the locking block 810 to be inserted into the two locking sleeves 805, and the slide bar 812 will automatically lock in the U-shaped slideway 1003 of the first automatic locking mechanism 10, thereby limiting the two locking sleeves 805 to prevent them from rotating, thereby limiting the two limiting plates 924, and then automatically locking the position of the rotating wheel 6, and then no matter how the rotating wheel 6 is rotated by external force, the position of the rotating wheel 6 will not change, thereby avoiding the situation where the rotating wheel 6 is exposed to the outside and is easily rotated by external force or easily twisted to affect the use of the regulating valve body 1, thereby effectively ensuring the safety of the regulating valve body 1.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A regulating valve with an automatic locking mechanism, characterized in that: The regulating valve comprises a regulating valve body (1), a locking mechanism (8), a self-limiting mechanism (9), a first automatic locking mechanism (10), a second automatic locking mechanism (11) and an indicating device (19): the upper surface of the regulating valve body (1) is fixedly connected to a fixing sleeve (2), the inner wall of the fixing sleeve (2) is fixedly connected to a guide sleeve (3), the inner wall of the guide sleeve (3) is threadedly connected to a valve stem (4), the lower surface of the valve stem (4) is fixedly connected to a valve core (5), and the upper surface of the valve stem (4) is fixedly connected to a rotating wheel (6); A U-shaped fixing frame (7) is mounted on the outer surface of one side of the fixing sleeve (2); the indicating device (19) is arranged on the upper surface of one side of the U-shaped fixing frame (7); the indicating device (19) comprises an adjusting component (191) and a detecting component (192); locking mechanisms (8) are arranged on the inner walls of both sides of the U-shaped fixing frame (7); a self-limiting mechanism (9) is arranged on one side of the locking mechanism (8); the self-limiting mechanism (9) comprises an arc-shaped rod (91) and a self-clamping component (92); the first automatic locking mechanism (10) and the second automatic locking mechanism (11) are both fixedly connected to one side of the self-limiting mechanism (9).

2. A regulating valve with an automatic locking mechanism according to claim 1, characterized in that: The regulating component (191) comprises a liquid storage tube (1911), a cylinder (1912), a piston (1913), a liquid extraction tube (1914), a vertical rod (1915) and a horizontal plate (1916); the liquid extraction tube (1914) penetrates the upper surface of the liquid storage tube (1911) and extends into the interior of the liquid storage tube (1911); the horizontal plate (1916) is arranged on a side wall of the rotating wheel (6); the detecting component (192) comprises a photoelectric water level sensor (1921), a PLC controller (1922), an indicator light 1 (1923) and an indicator light 2 (1924); the photoelectric water level sensor (1921) is arranged on the inner bottom wall of the liquid storage tube (1911); the photoelectric water level sensor (1921), the indicator light 1 (1923) and the indicator light 2 (1924) are all electrically connected to the PLC controller (1922).

3. A regulating valve with an automatic locking mechanism according to claim 2, characterized in that: The height of the inner wall of the liquid storage tube (1911) is consistent with the height between the upper surface of the valve core (5) and the inner top wall of the regulating valve body (1).

4. The regulating valve with automatic locking mechanism according to claim 1, characterized in that: The locking mechanism (8) comprises a first supporting sleeve (801), a second supporting sleeve (802) and a third supporting sleeve (803); a rotating sleeve (804) is rotatably connected between the first supporting sleeve (801) and the second supporting sleeve (802), and between the second supporting sleeve (802) and the third supporting sleeve (803); a clamping sleeve (805) is fixedly connected to the inner wall of the rotating sleeve (804); a sliding block (806) is slidably connected to the inner wall of the first supporting sleeve (801); a pressing block (807) is fixedly connected to one side of the sliding block (806); A support rod (808) is fixedly connected to the inner wall of one side of the first support sleeve (801), and a first spring (809) is movably connected to the outer surface of the support rod (808). A clamping block (810) is fixedly connected to one side of the pressing block (807). A second sliding groove (811) is provided on the side wall of the first support sleeve (801) close to the U-shaped fixing frame (7). A sliding rod (812) is slidably connected to the inner wall of the second sliding groove (811), and the sliding rod (812) is fixedly connected to the pressing block (807), and the clamping block (810) is plugged into the clamping sleeve (805).

5. A regulating valve with an automatic locking mechanism according to claim 4, characterized in that: The outer surface of the arc-shaped rod (91) is symmetrically provided with an arc-shaped slide rail (911); the number of the self-clamping components (92) is two, and the two self-clamping components (92) are symmetrically arranged on the outer surface of the arc-shaped rod (91); the self-clamping component (92) comprises a fixed rod (921) fixedly connected to the inner wall of the arc-shaped slide rail (911); the outer surface of the fixed rod (921) is slidably connected to a moving block (922); the outer surface of the fixed rod (921) is movably connected to a second spring (923); one end of the second spring (923) is fixedly connected to the inner wall of the arc-shaped slide rail (911); one side of the moving block (922) is fixedly connected to a limiting plate (924); and the limiting plate (924) is fixedly connected to the rotating sleeve (804).

6. The regulating valve with automatic locking mechanism according to claim 4, characterized in that: The first automatic locking mechanism (10) comprises an inclined rod (1001), a groove body (1002), a U-shaped slideway (1003), a through hole (1004), a rotating shaft (1005) and a locking plate (1006); the sliding rod (812) is slidably connected to the U-shaped slideway (1003); the U-shaped slideway (1003) is symmetrically arranged on the side wall of the groove body (1002); the through hole (1004) is opened on the side wall of the groove body (1002); the rotating shaft (1005) is rotatably connected to the inner wall of the through hole (1004); the rotating shaft (1005) is fixedly connected to the locking plate (1006); and a rotating block (1007) is equidistantly fixedly connected to the outer surface of one end of the rotating shaft (1005); the working principle and structure of the second automatic locking mechanism (11) are consistent with the working principle and structure of the first automatic locking mechanism (10).

7. A regulating valve with an automatic locking mechanism according to claim 6, characterized in that: A connecting frame (12) is fixedly connected to one side of the U-shaped fixing frame (7) close to the locking mechanism (8); the connecting frame (12) is fixedly connected to the locking mechanism (8); and the oblique rod (6) is fixedly connected to an outer surface of one side of the connecting frame (12).

8. The regulating valve with automatic locking mechanism according to claim 1, characterized in that: A semicircular mounting plate (13) is fixedly connected to one side of the U-shaped fixing frame (7), first threaded holes (14) are equidistantly formed on one side of the semicircular mounting plate (13), a second threaded hole (15) is formed on a side of the fixing sleeve (2) close to the first threaded hole (14), and mounting rods (16) are threadedly connected to the inner walls of the first threaded hole (14) and the second threaded hole (15).

9. A regulating valve with an automatic locking mechanism according to claim 8, characterized in that: The center lines of the first threaded hole (14) and the second threaded hole (15) coincide with each other.

10. The regulating valve with automatic locking mechanism according to claim 8, characterized in that: A knob (17) is fixedly connected to the outer surface of the mounting rod (16), and an anti-slip sleeve (18) is fixedly connected to the outer surface of the knob (17).

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