Special chlorine valve convenient to position and install

Abstract

The invention discloses a chlorine special valve convenient to position and install, and relates to the technical field of chemical valves. The positioning pins are movably inserted into a plurality of mounting holes formed in the two flange plates respectively, the screw rods are fixedly arranged at one ends of the positioning pins, the nuts are suspended on the outer sides of the two flange plates in an equal-fillet mode respectively, the nuts and the screw rods are arranged in a matched mode, and the left side and the right side of the valve body are movably sleeved with the movable rings respectively. The flange plate is provided with a synchronous turnover mechanism connected with the nut and the movable ring, the rotating rods are fixedly arranged at one ends of the screws respectively, the movable ring is provided with a synchronous locking mechanism connected with the valve body and the rotating rods, and the valve body is provided with a synchronous displacement mechanism connected with the movable ring, so that synchronous positioning of the valve and pipelines on the two sides can be achieved; and synchronous locking of a plurality of screws can be achieved, the installation efficiency is remarkably improved, the uniformity of pre-tightening force is ensured, the problems that a traditional chlorine valve is difficult to install and position, low in efficiency, poor in sealing reliability and the like are effectively solved, and the risk of chlorine leakage is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical valves, in particular to a special chlorine valve which is convenient for positioning and installation. Background Art

[0002] Chlorine, a highly toxic and corrosive hazardous chemical, is widely used in chemical, water treatment, pharmaceutical and other fields. The safety of its transportation pipelines is of vital importance. Chlorine-specific valves, as key control components of pipeline systems, must have excellent sealing, corrosion resistance and a reliable installation structure to prevent leakage accidents. However, the connection between existing chlorine valves and pipelines mainly adopts flange screw fastening. During installation, it is necessary to manually align the mounting holes of the flanges one by one and tighten the screws in sequence. This not only reduces the installation efficiency, but also easily leads to uneven screw pre-tightening force, which in turn affects the sealing performance and even causes flange deformation due to excessive local stress. Therefore, there is an urgent need for a chlorine-specific valve that is easy to position and install. Summary of the Invention

[0003] The purpose of the present invention is to provide a chlorine gas special valve with reasonable design, convenient use and easy positioning and installation to solve the above problems in view of the defects and shortcomings of the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: it comprises a valve body and a flange, wherein the left and right sides of the valve body are fixedly provided with flanges;

[0005] It also contains:

[0006] Locating pins, there are several locating pins, which are movably inserted into several mounting holes opened on the two flanges, and one end of the locating pin is fixedly provided with a screw;

[0007] Nuts, there are several nuts, each with equal fillet angles suspended on the outside of the two flanges, the nuts are matched with the screws, the left and right sides of the valve body are movably sleeved with movable rings, and the flange is provided with a synchronous flip mechanism connected to the nuts and the movable rings;

[0008] There are several rotating rods, each of which is fixed on one end of the plurality of screw rods. The rotating rods are rotatably inserted into the movable ring through bearings. The movable ring is provided with a synchronous locking mechanism connected to the valve body and the rotating rods. The valve body is provided with a synchronous displacement mechanism connected to the movable ring.

[0009] Through the above technical solution, the locating pin can pass through the pipe flange to realize the positioning function during the installation of the valve and the pipe, and through the cooperation of the synchronous flipping mechanism, the synchronous flipping of the positions of several nuts can be realized, which not only avoids the nuts from obstructing the installation of the valve and the pipe, but also can use the synchronous locking mechanism to make several screws rotate synchronously, thereby realizing the synchronous locking of several screws and several nuts, greatly improving the installation efficiency of the valve and the pipe.

[0010] Preferably, the synchronous flipping mechanism comprises:

[0011] Connecting frame, there are several connecting frames, each with equal fillet angles distributed on the outer ring wall of the flange, a sliding block No. 1 is slidably provided in a sliding groove provided on the connecting frame, the sliding block No. 1 is fixedly provided on the movable ring, and a guide block is fixedly provided on the sliding block No. 1;

[0012] There are several flip rods, each of which is rotatably inserted into a plurality of connecting frames through a bearing. A connecting rod is fixedly provided on the nut, one end of the connecting rod is connected to the flip rod, and a guide groove is provided on the flip rod, and a guide block is movably provided in the guide groove;

[0013] Through the above technical solution, in the process of the movable ring driving the screw and the positioning pin to approach the pipe flange, the cooperation of the slider and the guide block can be used to achieve the synchronous rotation of several flip rods, and then the nut can be driven to flip to the installation position corresponding to the screw through the connecting rod, avoiding the nut from causing obstruction during the docking and positioning process of the pipe flange and the flange plate.

[0014] Preferably, a connecting block is fixedly provided on the connecting frame, and the connecting block is fixedly connected to the valve body. The valve body and the connecting frame can be connected through the connecting block, thereby effectively improving the structural stability of the connecting frame.

[0015] Preferably, a No. 1 spring is fixedly provided in the flip rod, a limit plate is fixedly provided at one end of the No. 1 spring, one end of the connecting rod is movably inserted in the flip rod and fixedly connected to the limit plate, after the nut and the screw are tightened by threads and the nut contacts the pipe flange, the No. 1 spring is in a compressed state and applies a rebound thrust to the limit plate, and the limit plate can apply force to the nut through the connecting rod to prevent the nut from loosening.

[0016] Preferably, the synchronous locking mechanism comprises:

[0017] A No. 1 fixing frame, the No. 1 fixing frame is fixedly arranged on the front side wall of the valve body, a driving rod is rotatably inserted into the No. 1 fixing frame through a bearing, a control rod is rotatably inserted into the front side wall of the No. 1 fixing frame through a bearing, a cross slot is provided at the front end of the control rod, and a rear end of the control rod is transmission-connected to the driving rod through a bevel gear pair;

[0018] There are two driven rods, each of which is rotatably inserted into the opposite side walls of the two movable rings through a bearing. One end of the driven rod is fixedly sleeved with a No. 1 gear, and a gear ring meshing with the No. 1 gear is rotatably provided in the side wall of the movable ring through a bearing. The other end of the driven rod is movably inserted into the driving rod;

[0019] Second gears, there are several second gears, which are fixedly mounted on several rotating rods, and the second gears on the left and right sides are respectively engaged with the ring gears on the left and right sides;

[0020] Through the above technical solution, when the driving rod rotates, the No. 1 gear can be driven to rotate through the driven rod, and the engagement of the No. 1 gear with the ring gear and the engagement of the No. 2 gear with the ring gear can be used to achieve the synchronous rotation of several screws on both sides, thereby achieving the synchronous installation of the valve and the pipelines on both sides during the installation process.

[0021] Preferably, the synchronous displacement mechanism comprises:

[0022] A No. 2 fixing frame, the No. 2 fixing frame is fixedly arranged on the rear side wall of the valve body, a No. 3 gear is rotatably arranged in the No. 2 fixing frame through a shaft and a bearing, and a movable frame is slidably arranged on the left and right sides of the No. 2 fixing frame respectively through a slide pair, and one end of the movable frame passes through the No. 2 fixing frame and is fixedly connected to the movable ring;

[0023] There are two racks, which are fixed on two movable frames respectively. The No. 3 gear is engaged with the two racks. A No. 2 spring is fixed on the other end of the movable frame, and one end of the No. 2 spring is fixedly connected to the inner wall of the No. 2 fixed frame.

[0024] Through the above technical solution, with the cooperation of the movable frame, the No. 3 gear and the rack, the left and right movable rings can be moved synchronously in opposite directions, and the rebound thrust applied by the spring to the movable frame can be used to enable the locating pins on both sides to be inserted into the pipe flanges respectively during the installation of the valve and the pipeline, thereby realizing the synchronous positioning of the valve and the pipelines on both sides, thereby improving the convenience of positioning and installation of the valve and the pipeline.

[0025] Preferably, a cross bar is movably provided inside the No. 2 spring, the movable frame is movably sleeved on the cross bar, and the end of the cross bar is fixedly connected to the inner wall of the No. 2 fixed frame. The cross bar can not only provide auxiliary guidance for the movement of the movable frame and improve the stability of the movable frame, but also prevent the No. 2 spring from bending and deforming during the compression process, thereby affecting its service life.

[0026] Preferably, a fixing cylinder is fixedly provided on the rear side wall of the No. 2 fixing frame, a limiting rod is movably inserted in the fixing cylinder, a No. 3 spring connected to the limiting rod is fixedly provided in the fixing cylinder, one end of the limiting rod is inserted in the No. 2 fixing frame and movably contacts the movable frame on one side, a pulling rod is fixedly provided on the other end of the limiting rod, and a pulling handle is fixedly provided on the rear end of the pulling rod after passing through the fixing cylinder;

[0027] Through the above technical solution, the limit rod can provide a limit for the movable frame, thereby realizing the limit of the movable ring, avoiding the situation in which the movable frame is always affected by the thrust exerted by the No. 2 spring during the installation of the valve and the pipeline, and the need for manual control of the movable ring to prevent it from moving.

[0028] Preferably, several grooves are provided on the inner ring wall of the movable ring with equal rounded corners, and a No. 2 slider is fixedly arranged in the groove. The No. 2 slider is slidably arranged on the fixed rail, and the fixed rail is fixedly arranged on the valve body. The No. 2 slider and the fixed rail can not only provide guidance for the displacement of the movable ring on the valve body, but also improve the stability of the movable ring.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The valve body and the pipeline can be quickly aligned by pre-inserting the positioning pin into the pipeline flange. Combined with the movable ring, synchronous flip mechanism and synchronous locking mechanism, all nuts can be synchronously flipped to avoid positioning and screws can be synchronously tightened. Compared with the traditional one-by-one tightening method, the efficiency is not only improved, but also can be applied to installation in confined spaces.

[0031] 2. After the nut contacts the pipe flange, the axial rebound force continuously applied to the nut by the compression of the No. 1 spring can offset the thread retreat caused by vibration and prevent the nut from loosening;

[0032] 3. The synchronous displacement mechanism can realize the synchronous reverse movement of the movable rings on both sides, which can be used to realize the synchronous positioning and docking of the left and right positioning pins with the left and right pipe flanges, realize the synchronous positioning of the valve and the pipes on both sides, and effectively improve the positioning efficiency;

[0033] 4. The cooperation of the limit rod, No. 3 spring, fixed tube and pulling rod can provide limit for the movable frame, so as to avoid the movable frame being affected by the thrust exerted by the No. 2 spring and requiring manual control of the movable frame and movable ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention.

[0035] Figure 2 It is a three-dimensional structural view of the back side of the present invention.

[0036] Figure 3 It is a structural schematic diagram of a specific implementation method of the present invention.

[0037] Figure 4 It is a schematic diagram of the internal structure of the connecting frame and the turning rod in the present invention.

[0038] Figure 5 It is an exploded view of the parts of the positioning pin, screw, movable ring, rotating rod and synchronous locking mechanism in the present invention.

[0039] Figure 6 It is a schematic diagram of the internal structure of the No. 2 fixing frame in the present invention.

[0040] Figure 7It is an exploded view of the parts of the fixed cylinder, the limiting rod, the No. 3 spring, the pulling rod and the pulling handle in the present invention.

[0041] Description of reference numerals:

[0042] Valve body 1, flange 2, locating pin 3, mounting hole 4, screw 5, nut 6, movable ring 7, synchronous flip mechanism 8, connecting frame 8-1, slider No. 1 8-2, guide block 8-3, flip rod 8-4, connecting rod 8-5, rotating rod 9, synchronous locking mechanism 10, fixed frame No. 1 10-1, drive rod 10-2, control rod 10-3, driven rod 10-4, gear No. 1 10-5, ring gear 10-6, gear No. 2 10-7, synchronous displacement mechanism 11, fixed frame No. 2 11-1, gear No. 3 11-2, movable frame 11-3, rack 11-4, spring No. 2 11-5, slide groove 12, guide groove 13, connecting block 14, spring No. 1 15, limit plate 16, cross bar 17, fixed cylinder 18, limit rod 19, spring No. 3 20, pull rod 21, pull handle 22, slider No. 2 23, fixed rail 24. DETAILED DESCRIPTION

[0043] The present invention will be further described below with reference to the accompanying drawings.

[0044] Example 1:

[0045] like Figure 1-Figure 7 As shown, this embodiment comprises a valve body 1 and a flange 2, and the left and right sides of the valve body 1 are both welded and fixed with flanges 2;

[0046] It also contains:

[0047] Locating pins 3, there are several locating pins 3, which are movably inserted into several mounting holes 4 opened on the two flanges 2. One end of the locating pin 3 is welded and fixed with a screw 5. The locating pin 3 can pass through the pipeline flange to achieve the positioning function when the valve and the pipeline are installed;

[0048] Nuts 6, there are several nuts 6, which are respectively suspended on the outside of the two flanges 2 with equal fillets. The nuts 6 are matched with the screws 5. The left and right sides of the valve body 1 are movably sleeved with movable rings 7. The flange 2 is provided with a synchronous flip mechanism 8 connected to the nuts 6 and the movable ring 7. Several grooves are provided on the inner ring wall of the movable ring 7 with equal fillets. A second slider 23 is fixed in the groove by bolts. The second slider 23 is slidably set on the fixed rail 24. The fixed rail 24 is fixed to the valve body 1 by bolts. The cooperation of the second slider 23 and the fixed rail 24 can significantly enhance the structural stability of the movable ring 7 during movement. The thread rotation directions of the screws 5 and the nuts 6 on the left and right sides are set in opposite directions;

[0049] Rotating rods 9, there are several rotating rods 9, which are respectively welded and fixed on one end of several screw rods 5, and the rotating rods 9 are rotatably inserted on the movable ring 7 through bearings. The movable ring 7 is provided with a synchronous locking mechanism 10 connected to the valve body 1 and the rotating rods 9, and the valve body 1 is provided with a synchronous displacement mechanism 11 connected to the movable ring 7;

[0050] The synchronous turning mechanism 8 comprises:

[0051] Connecting frame 8-1, there are several connecting frames 8-1, each with equal fillet angles distributed on the outer ring wall of the flange 2, a slider 8-2 is slidably provided in the slide groove 12 provided on the connecting frame 8-1, the slider 8-2 is fixedly provided on the movable ring 7, a guide block 8-3 is fixedly provided on the slider 8-2 by bolts, a connecting block 14 is fixedly provided on the connecting frame 8-1 by bolts, and the connecting block 14 is fixedly connected to the valve body 1 by bolts, the connection between the valve body 1 and the connecting frame 8-1 can be realized through the connecting block 14, which significantly enhances the overall rigidity and stability of the connecting frame 8-1;

[0052] The flip rod 8-4 is a plurality of flip rods 8-4, which are respectively rotatably inserted into the plurality of connecting frames 8-1 through bearings. A connecting rod 8-5 is welded and fixedly provided on the nut 6. One end of the connecting rod 8-5 is connected to the flip rod 8-4. A guide groove 13 is provided on the flip rod 8-4. The guide block 8-3 is movably provided in the guide groove 13. When the movable ring 7 drives the screw 5 and the positioning pin 3 to move toward the pipeline flange, the synchronous rotation of the plurality of flip rods 8-4 can be achieved through the coordinated action of the slider and the guide block 8-3. This linkage mechanism not only enables the plurality of nuts 6 to be synchronously flipped to the assembly position corresponding to the screw 5, but also prevents the interference of the nuts 6 during the positioning process of the valve and the pipeline;

[0053] The synchronous locking mechanism 10 comprises:

[0054] A first fixing frame 10-1 is fixed to the front side wall of the valve body 1 by bolts. A driving rod 10-2 is rotatably inserted into the first fixing frame 10-1 via a bearing. A control rod 10-3 is rotatably inserted into the front side wall of the first fixing frame 10-1 via a bearing. A cross slot is provided at the front end of the control rod 10-3. The rear end of the control rod 10-3 is transmission-connected to the driving rod 10-2 via a bevel gear pair.

[0055] There are two driven rods 10-4, each of which is rotatably inserted into the opposite side walls of the two movable rings 7 through bearings. One end of the driven rod 10-4 is fixedly sleeved with a No. 1 gear 10-5, and a gear ring 10-6 meshing with the No. 1 gear 10-5 is rotatably provided in the side wall of the movable ring 7 through a bearing. The other end of the driven rod 10-4 is movably inserted into the driving rod 10-2;

[0056] The second gear 10-7 is a plurality of gears 10-7, which are fixedly sleeved on the plurality of rotating rods 9. The plurality of second gears 10-7 on the left and right sides are respectively engaged with the ring gears 10-6 on the left and right sides. When the driving rod 10-2 rotates, the first gear 10-5 is driven to rotate by the driven rod 10-4. With the meshing transmission of the first gear 10-5 and the ring gear 10-6, and the linkage effect of the second gear 10-7 and the ring gear 10-6, the synchronous rotation of the plurality of screws 5 on both sides is achieved. This transmission mechanism design enables the valve to be installed synchronously with the pipes on both sides;

[0057] The synchronous displacement mechanism 11 comprises:

[0058] A second fixing frame 11-1 is fixed to the rear side wall of the valve body 1 by bolts. A third gear 11-2 is rotatably provided in the second fixing frame 11-1 via a shaft and a bearing. A movable frame 11-3 is slidably provided on the left and right sides of the second fixing frame 11-1 via a slide pair. One end of the movable frame 11-3 passes through the second fixing frame 11-1 and is fixedly connected to the movable ring 7 by bolts.

[0059] Rack 11-4, there are two racks 11-4, which are fixed on two movable frames 11-3 by bolts respectively, and the No. 3 gear 11-2 is meshed with the two racks 11-4. The other end of the movable frame 11-3 is fixed with a No. 2 spring 11-5, and one end of the No. 2 spring 11-5 is fixedly connected to the inner wall of the No. 2 fixed frame 11-1. Under the coordinated action of the movable frame 11-3, the No. 3 gear 11-2 and the rack 11-4, the movable rings 7 on the left and right sides are driven to achieve synchronous reverse movement. At the same time, the elastic restoring force exerted by the No. 2 spring 11-5 on the movable frame 11-3 ensures that during the installation of the valve and the pipeline, the locating pins 3 on both sides can be accurately inserted into the corresponding pipeline flange locating pins The design of this mechanism realizes the synchronous positioning function of the valve and the pipelines on both sides in the positioning hole, which significantly improves the positioning accuracy and operational convenience of the valve installation. A cross bar 17 is movably provided in the No. 2 spring 11-5, and the movable frame 11-3 is movably sleeved on the cross bar 17. The end of the cross bar 17 is fixedly connected to the inner wall of the No. 2 fixed frame 11-1. The cross bar 17 can not only provide auxiliary guidance for the movement of the movable frame 11-3, effectively enhancing the movement stability of the movable frame 11-3; it can also constrain the compression trajectory of the No. 2 spring 11-5, and prevent the No. 2 spring 11-5 from generating non-axial bending deformation during the compression process, thereby ensuring that the No. 2 spring 11-5 maintains a good working condition and prolongs its service life.

[0060] Example 2:

[0061] See Figures 1-4As shown, it is further improved on the basis of Example 1, a No. 1 spring 15 is fixedly provided in the flip rod 8-4, and a limit plate 16 is fixedly provided at one end of the No. 1 spring 15, and one end of the connecting rod 8-5 is movably inserted in the flip rod 8-4 and fixedly connected to the limit plate 16 by a bolt. When the nut 6 and the screw rod 5 are threadedly tightened and tightly fit with the pipe flange, the No. 1 spring 15 in the compressed state generates an elastic restoring force on the limit plate 16, and the force is transmitted to the nut 6 through the connecting rod 8-5, forming a continuous anti-loosening pre-tightening force, which effectively prevents the nut 6 from retreating and loosening under vibration conditions.

[0062] Example 3:

[0063] See Figure 2 and Figure 6 As shown, it is further improved on the basis of Example 1, a fixing cylinder 18 is fixedly provided on the rear side wall of the No. 2 fixing frame 11-1 by bolts, and a limiting rod 19 is movably inserted in the fixing cylinder 18, and a No. 3 spring 20 connected to the limiting rod 19 is fixedly provided in the fixing cylinder 18, one end of the limiting rod 19 is inserted in the No. 2 fixing frame 11-1 and is movably conflicted with the movable frame 11-3 on one side, and a pulling rod 21 is fixedly provided on the other end of the limiting rod 19 by bolts, and the rear end of the pulling rod 21 passes through the fixing cylinder 18 and is fixed with a pulling handle 22 by bolts, and the limiting rod 19 can form a constraint on the movable frame 11-3, thereby realizing precise limiting of the movable ring 7. During the installation of the valve and the pipeline, there is no need for manual continuous intervention in the position of the movable ring 7, thereby ensuring the stability and reliability of the installation process.

[0064] When using the present invention, the flanges on the pipes on both sides are respectively pressed against the two flange plates 2, and then the pulling handle 22 is moved backward. The pulling handle 22 drives the limiting rod 19 to move backward through the pulling rod 21, so that the limiting rod 19 is disengaged from the movable frame 11-3, and then the No. 2 spring 11-5 is extended to push the movable frame 11-3 to move, and the engagement of the No. 3 gear 11-2 and the rack 11-4 is used to ensure the same movement amount of synchronous reverse movement of the movable frames 11-3 on both sides. The movable frame 11-3 drives the movable ring 7 to move toward the direction of the flange plate 2, so that the positioning pin 3 can pass through the pipe flange to realize the positioning of the valve body 1 between the pipes on both sides, and in this process, the movable ring 7 will also drive the No. 1 slider 8-2 to move, and the No. 1 slider 8-2 drives the guide block 8-3 to move. When the guide block 8-3 moves in the inclined section of the guide groove 13, the flip rod 8-4 can drive the nut 6 to flip to the connecting rod 8-5. One side of the pipe flange allows the locating pin 3 to be inserted into the nut 6, and the screw 5 will be affected by the thread and will conflict with one side of the nut 6. Then one end of the electric screwdriver can be inserted into the cross slot and the electric screwdriver can be started, so that the control rod 10-3 can drive the driving rod 10-2 to rotate through the transmission of the bevel gear pair, and the driving rod 10-2 drives the driven rods 10-4 on both sides to rotate synchronously, and the driven rod 10-4 drives the No. 1 gear 10-5 to rotate, and the No. 1 gear 10-5 drives the ring gear 10-6 to rotate, and the ring gear 10-6 drives several No. 2 gears 10-7 to rotate synchronously, and the No. 2 gear 10-7 drives the rotating rod 9 to rotate, and the rotating rod 9 drives the screw 5 to rotate, so that the threaded section of the screw 5 can be screwed into the nut 6. At this time, the nut 6 conflicts with the pipe flange, and the nut of the screw 5 conflicts with the flange 2, and the locating pin 3 passes through the nut 6, so that the valve body 1 and the left and right pipes are locked together by the screw 5 and nut 6.

[0065] Compared with the prior art, the present invention has the following beneficial effects:

[0066] 1. The valve body 1 and the pipeline are quickly aligned by pre-inserting the locating pin 3 into the pipeline flange. Combined with the movable ring 7, the synchronous turning mechanism 8, and the synchronous locking mechanism 10, all nuts 6 can be synchronously turned to avoid positioning and the screws 5 can be synchronously tightened. Compared with the traditional one-by-one tightening method, the efficiency is not only improved, but it can also be applied to installation in confined spaces.

[0067] 2. After the nut 6 contacts the pipe flange, the axial rebound force continuously applied to the nut 6 by the compression of the No. 1 spring 15 can offset the thread retreat caused by vibration and prevent the nut 6 from loosening;

[0068] 3. The synchronous displacement mechanism 11 can realize synchronous reverse movement of the movable rings 7 on both sides, which can be used to realize synchronous positioning and docking of the left and right positioning pins 3 with the left and right pipeline flanges, realize synchronous positioning of the valve and the pipelines on both sides, and effectively improve positioning efficiency;

[0069] 4. Through the cooperation of the limit rod 19, the third spring 20, the fixed tube 18 and the pulling rod 21, the movable frame 11-3 can be limited to prevent the movable frame 11-3 from being affected by the thrust exerted by the second spring 11-5 and requiring manual control of the movable frame 11-3 and the movable ring 7.

[0070] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A chlorine-specific valve that is easy to position and install, comprising a valve body (1) and a flange (2), wherein the flange (2) is fixedly provided on both the left and right sides of the valve body (1); It is characterized by: It also contains: Locating pins (3), the locating pins (3) are multiple and are movably inserted into multiple mounting holes (4) provided on the two flanges (2), and a screw (5) is fixedly provided at one end of the locating pins (3); Nuts (6), the nuts (6) are multiple and are suspended on the outside of the two flanges (2) with equal fillet angles. The nuts (6) are matched with the screw (5). The left and right sides of the valve body (1) are both movably sleeved with movable rings (7). The flange (2) is provided with a synchronous turning mechanism (8) connected to the nuts (6) and the movable rings (7); The rotating rods (9) are multiple and fixedly arranged at one end of the multiple screw rods (5). The rotating rods (9) are rotatably inserted into the movable ring (7) through bearings. The movable ring (7) is provided with a synchronous locking mechanism (10) connected to the valve body (1) and the rotating rods (9). The valve body (1) is provided with a synchronous displacement mechanism (11) connected to the movable ring (7).

2. A chlorine-specific valve that is easy to position and install according to claim 1, characterized in that: The synchronous turning mechanism (8) comprises: A connecting frame (8-1), wherein the connecting frames (8-1) are multiple and are distributed on the outer ring wall of the flange (2) with equal fillets. A first slider (8-2) is slidably arranged in a sliding groove (12) provided on the connecting frame (8-1). The first slider (8-2) is fixedly arranged on the movable ring (7). A guide block (8-3) is fixedly arranged on the first slider (8-2); The turning rods (8-4) are multiple and are respectively rotatably inserted into multiple connecting frames (8-1) through bearings. A connecting rod (8-5) is fixedly arranged on the nut (6). One end of the connecting rod (8-5) is connected to the turning rod (8-4). A guide groove (13) is provided on the turning rod (8-4). The guide block (8-3) is movably arranged in the guide groove (13).

3. A chlorine-specific valve that is easy to position and install according to claim 2, characterized in that: A connecting block (14) is fixedly provided on the connecting frame (8-1), and the connecting block (14) is fixedly connected to the valve body (1).

4. A chlorine-specific valve that is easy to position and install according to claim 2, characterized in that: A No. 1 spring (15) is fixedly arranged in the flip rod (8-4), a limit plate (16) is fixedly arranged on one end of the No. 1 spring (15), and one end of the connecting rod (8-5) is movably inserted in the flip rod (8-4) and fixedly connected to the limit plate (16).

5. The chlorine-specific valve that is easy to position and install according to claim 1, characterized in that: The synchronous locking mechanism (10) comprises: A No. 1 fixing frame (10-1), the No. 1 fixing frame (10-1) is fixedly arranged on the front side wall of the valve body (1), a driving rod (10-2) is rotatably inserted into the No. 1 fixing frame (10-1) via a bearing, a control rod (10-3) is rotatably inserted into the front side wall of the No. 1 fixing frame (10-1) via a bearing, a cross slot is provided at the front end of the control rod (10-3), and a rear end of the control rod (10-3) is transmission-connected to the driving rod (10-2) via a bevel gear pair; There are two driven rods (10-4), each of which is rotatably inserted into the opposite side walls of the two movable rings (7) via bearings. One end of the driven rod (10-4) is fixedly sleeved with a number one gear (10-5). A gear ring (10-6) meshing with the number one gear (10-5) is rotatably provided in the side wall of the movable ring (7) via a bearing. The other end of the driven rod (10-4) is movably inserted into the driving rod (10-2). The second gear (10-7) is a plurality of the second gears (10-7) which are respectively fixedly sleeved on the plurality of rotating rods (9). The plurality of second gears (10-7) on the left and right sides are respectively meshed with the gear rings (10-6) on the left and right sides.

6. The chlorine-specific valve that is easy to position and install according to claim 1, characterized in that: The synchronous displacement mechanism (11) comprises: A second fixing frame (11-1), the second fixing frame (11-1) is fixedly arranged on the rear side wall of the valve body (1), a third gear (11-2) is rotatably arranged in the second fixing frame (11-1) via a shaft and a bearing, and movable frames (11-3) are slidably arranged on the left and right sides of the second fixing frame (11-1) via a slide rail pair, and one end of the movable frame (11-3) passes through the second fixing frame (11-1) and is fixedly connected to the movable ring (7); Racks (11-4), there are two racks (11-4), which are fixedly arranged on two movable frames (11-3) respectively, a third gear (11-2) is meshed with the two racks (11-4), a second spring (11-5) is fixedly arranged on the other end of the movable frame (11-3), and one end of the second spring (11-5) is fixedly connected to the inner wall of the second fixed frame (11-1).

7. A chlorine-specific valve that is easy to position and install according to claim 6, characterized in that: A crossbar (17) is movably provided in the second spring (11-5), the movable frame (11-3) is movably sleeved on the crossbar (17), and the end of the crossbar (17) is fixedly connected to the inner wall of the second fixed frame (11-1).

8. The chlorine-specific valve that is easy to position and install according to claim 6, characterized in that: A fixing cylinder (18) is fixedly provided on the rear side wall of the second fixing frame (11-1), a limiting rod (19) is movably inserted in the fixing cylinder (18), a third spring (20) connected to the limiting rod (19) is fixedly provided in the fixing cylinder (18), one end of the limiting rod (19) is inserted in the second fixing frame (11-1) and movably abuts against the movable frame (11-3) on one side, a pulling rod (21) is fixedly provided on the other end of the limiting rod (19), and a pulling handle (22) is fixedly provided after the rear end of the pulling rod (21) passes through the fixing cylinder (18).

9. The chlorine-specific valve that is easy to position and install according to claim 1, characterized in that: The inner ring wall of the movable ring (7) is provided with a plurality of grooves with equal fillets, and a second slider (23) is fixedly arranged in the groove. The second slider (23) is slidably arranged on a fixed rail (24), and the fixed rail (24) is fixedly arranged on the valve body (1).

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