Production equipment and process of a double-link manual closed valve

Abstract

The present invention belongs to the technical field of double-link production, and in particular relates to a production device and process for a double-link manual sealed valve, wherein the device comprises: a support, a transmission chamber is provided at the upper end, and a transmission motor is provided at the right part of the transmission chamber; a positioning mechanism is composed of a transmission assembly and a sliding assembly; a guide for installation; a piston plate is placed in the middle of the sliding assembly; a valve block assembly is clamped at the upper end of the transmission assembly, and a rotating shaft is inserted at the front end; a sleeve assembly is arranged at the upper end of the support, and a connecting rod block is installed at the lower end; when installing the double-link sealed valve, a transmission method combining threaded transmission and sliding is adopted through the provided positioning mechanism, and the provided threaded block and screw are cooperated with the connecting arm to ensure that the piston plate is always in a stable and horizontal installation position during installation, thereby solving the problem of inaccurate installation position and difficulty in installation caused by the position deviation of the valve body during installation of the sealed valve.

Description

Technical Field

[0001] The invention belongs to the technical field of double-connecting rod production, and in particular relates to production equipment and a process for a double-connecting rod manual sealing valve. Background Art

[0002] A sealed valve is a flow-blocking and regulating device used in ventilation ducts. Lever-type sealed valves are used for fully opening or closing, while double-link sealed valves not only open and close but also adjust air volume. Double-link sealed valves are essential control devices for ensuring airtightness and switching ventilation systems, as well as for three types of protective ventilation in wartime. They feature a compact structure and are easy and flexible to operate. They can be used to fully open or close air ducts, adjust flow rates, and operate at full speed.

[0003] The patent with publication number CN212616365U discloses a manual double-link sealed valve sealed flange, including a valve seat, a valve plate and a valve stem. The valve stem extends to one end outside the valve seat and is movably sleeved with an adjusting rod. The side wall of the valve stem is provided with a strip hole, and a fixing block is provided in the strip hole. Both ends of the fixing block pass through the strip hole and are fixedly connected to the side wall of the adjusting rod. The side wall of the adjusting rod facing the valve seat is fixedly connected with an outer gear ring, and the outer gear ring is movably sleeved with the valve stem. The outer gear ring is meshed with an inner gear ring, and the side wall of the inner gear ring is fixedly connected to the side wall of the valve seat. Two magnets are fixedly embedded in the side wall of the valve seat, and the two magnets are adsorbed to each other with the outer gear ring.

[0004] The following problems need to be solved during the production of double-link sealed valves:

[0005] 1. During the installation of the double-link system, the valve and the connecting rod are connected as one piece. However, during the assembly of the connecting rod, the valve needs to remain in a horizontal position to ensure that the valve is closed when the double-link system is in the cut-off position.

[0006] 2. When installing the longer connecting rod of the two connecting rods, since the connecting rod at the lower end is installed in the middle of the valve body, high installation accuracy is required. However, due to the actual size of the valve body, manual installation is difficult. At this time, a mechanical structure is required to achieve automatic installation. Summary of the Invention

[0007] The purpose of the present invention is to provide a production device and process for a double-link manual closed valve to solve the problems raised in the above background technology. To achieve the above purpose, the following technical solution is provided: a production device and process for a double-link manual closed valve, comprising:

[0008] The support has a transmission cavity at its upper end and a transmission motor at the right side of the transmission cavity. The support is used for overall support.

[0009] The positioning mechanism is composed of a transmission assembly and a sliding assembly; the transmission assembly is fixedly arranged at the upper end of the support and is used for guidance during installation; the sliding assembly is arranged at the upper end of the transmission assembly and is used for installation;

[0010] The piston plate is placed in the middle of the sliding assembly;

[0011] The valve block assembly is clamped on the upper end of the transmission assembly for installation, with a rotating shaft inserted at the front end;

[0012] The sleeve assembly is arranged at the upper end of the support, and a connecting rod block is installed at the lower end for installation.

[0013] In this technical solution, when installing the double-link manual closed valve, the installation position of the double-link is inside the valve cavity. At this time, the valve block assembly is first installed to a horizontal position to ensure that the valve body installation position is fixed and balanced; then the piston plate is placed on the sliding assembly, and the transmission assembly is driven to make the piston plate close to the valve block assembly. The connecting rod block is installed on the piston plate through the sleeve assembly, and then the rotating shaft is inserted to complete the upper installation of the connecting rod. Finally, the second connecting rod is manually connected between the piston plate and the valve block assembly to complete the installation of the double connecting rod.

[0014] In any of the above technical solutions, further, the positioning mechanism includes:

[0015] The cylinder is fixedly connected to the upper end of the transmission cavity, has a slot at the upper end, and has a telescopic cavity inside;

[0016] A limiting ring groove is provided at the middle portion of the lower end wall of the telescopic cavity;

[0017] A first rotating block is rotatably arranged in the middle of the limiting ring groove;

[0018] A vertical slide is fixedly arranged on the left and right end walls of the telescopic cavity; a slider is slidably arranged on the vertical slide;

[0019] A connecting arm is connected to the two sliders and has a screw at its lower end;

[0020] The second rotating block is fixedly arranged in the middle of the first rotating block and is hollow inside;

[0021] The thread block is fixedly arranged on the upper end of the second rotating block and is threadedly driven by the screw;

[0022] The transmission gear plate is fixedly arranged at the lower end of the second rotating block and is driven by the transmission motor gear;

[0023] The mounting groove is fixedly connected to the upper end of the connecting arm and is bowl-shaped;

[0024] In this technical solution, when the transmission gear disc and the second rotating block rotate as a whole, the second rotating block rotates, and the screw and the connecting arm are connected as a whole, which limits the rotational freedom of the screw, and the screw can only move in the vertical direction. At this time, when the second rotating block rotates and the screw thread is transmitted, the installation groove height is raised and the piston plate is driven to the installation position; and the lifting adopts thread transmission, which is highly adjustable and has self-locking properties, so that the piston plate is stable when lifted, which is conducive to installation.

[0025] In any of the above technical solutions, further, the piston plate also includes:

[0026] The fixed head is fixedly connected to the upper end of the piston plate by bolts, and the upper end of the mounting groove can be engaged with the bolts at the lower end of the piston plate;

[0027] A crank, fixedly connected to the upper end of the fixed head, with the upper end being curved;

[0028] The hinged cylindrical pin is fixedly connected to the curved middle part of the crank and is used for mounting the piston plate.

[0029] In this technical solution, the fixing head is fixed to the piston plate by bolts. When the piston plate is manually installed, it is positioned by the bolts extending from the lower end, and the installation of the mounting groove and the piston plate can be completed quickly.

[0030] In any of the above technical solutions, further, the valve block assembly includes:

[0031] The valve body is hollow inside, and the manual clamp is set in the clamping groove at the upper end of the cylinder;

[0032] The slot is fixedly provided on the left end wall of the valve body;

[0033] The fixing rod is inserted into the slot and fixed to the valve body by screws. The right end is bent and serves as the fixed end when the connecting rod is installed.

[0034] Embedded through hole, fixedly opened at the right end of the fixed rod, used for hinge connection of the connecting rod;

[0035] In this technical solution, when assembling the double connecting rod, first insert the fixing rod into the slot so that the bend of the embedded through hole is facing the mounting hole of the rotating shaft, and then fix the fixing rod through threads to ensure the installation of the connecting rod drive part.

[0036] In any of the above technical solutions, further, the set component includes:

[0037] The upper contact sleeve is in the shape of a cylinder with an open lower end;

[0038] A vertical hydraulic rod is fixedly connected between the upper contact sleeve and the support;

[0039] The fixed frame is fixedly connected to the rear end of the upper contact block.

[0040] A horizontal hydraulic rod is fixedly connected to the rear end wall of the upper contact sleeve, and its telescopic rod is slidably arranged on a fixed frame;

[0041] Install the boom, which is fixedly connected to the front end of the telescopic rod of the horizontal hydraulic rod. A magnetic slot is provided at the lower end for adsorbing the connecting rod block for installation.

[0042] In this technical solution, when installing the double connecting rod, a strong magnet is provided at the lower end of . At this time, the connecting rod block is installed at the lower end of . At this time, the vertical hydraulic rod is extended to drive the connecting rod block to the installation position, and then the vertical hydraulic rod is suspended and the horizontal hydraulic rod is retracted. At this time, the connecting rod block is installed in the installation position to complete the articulation of the first connecting rod.

[0043] In any of the above technical solutions, further, the connecting rod block includes:

[0044] The guide horn is fixedly installed at the left end of the connecting rod block and is in the shape of a hollow cap with a keyway provided at the internal through hole;

[0045] The hinge hole is provided at the right end of the connecting rod block and can be sleeved on the hinge cylindrical pin for hinge connection of the connecting rod.

[0046] In this technical solution, when the first connecting rod is articulated, the articulation hole has been inserted into the articulation cylindrical pin, and then the rotating shaft is inserted into the guide horn through the hole of the valve block assembly to complete the articulation of the first connecting rod, and then the upper end of the crank is articulated with the fixed rod through the second connecting rod.

[0047] In any of the above technical solutions, further, the rotating shaft includes:

[0048] A flat key is fixedly arranged in the middle of the rotating shaft, and the flat key can be engaged with the guide horn;

[0049] The handle is fixedly connected to the upper end of the rotating shaft and is used to drive the rotating shaft to rotate.

[0050] In this technical solution, the flat key is embedded in the guide horn. When the connecting rod block needs to be driven to rotate, the connecting rod block can be driven to rotate by manually turning the handle, thereby completing the opening and closing of the valve.

[0051] A production device and process for a double-link manual sealing valve, the operation method of which includes the following steps:

[0052] Step 1: First, fix the piston plate to the sliding assembly so that the mounting groove and the piston plate become a whole. Then, insert the fixing rod into the slot to fix it. Then, manually clamp the valve body on the sliding assembly.

[0053] Step 2: Start the transmission motor, which drives the sliding assembly to rotate, and then drives the piston plate to move to the predetermined position through the threaded block;

[0054] Step 3: Fix the connecting rod block to the lower end, then start the vertical hydraulic rod and move it down until the connecting rod block, piston plate and valve block assembly are in the same position, then retract the horizontal hydraulic rod, at this time the hinge hole is inserted into the hinge cylindrical pin;

[0055] Step 4: Finally, insert the shaft into the flat key and embed it into the guide horn to complete the installation of the connecting rod. Finally, manually insert the second connecting rod between the bent end of the fixed rod and the hinged cylindrical pin to complete the installation.

[0056] The beneficial effects of the present invention are as follows: when installing the double-link sealed valve, a transmission method combining threaded transmission and sliding is adopted through the provided positioning mechanism, and the provided threaded block and screw, in cooperation with the connecting arm, the piston plate is always in a stable horizontal installation position during installation, thereby solving the problem of inaccurate installation position and difficulty in installation caused by the position deviation of the valve body during installation of the sealed valve; at the same time, when connecting the connecting rod, through the provided sleeve assembly, two vertically provided hydraulic rods are adopted to successively realize the alignment and installation of the connecting rod block, thereby replacing manual installation and improving the installation efficiency of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0058] Figure 2 It is a structural diagram of the positioning mechanism of the present invention;

[0059] Figure 3 yes Figure 1 Schematic diagram of AA in the middle;

[0060] Figure 4 It is a structural schematic diagram of the valve block assembly in the present invention;

[0061] Figure 5 is a three-dimensional schematic diagram of the valve block assembly of the present invention;

[0062] Figure 6 is a three-dimensional schematic diagram of the piston plate in the present invention;

[0063] Figure 7 It is a three-dimensional schematic diagram of the connecting rod block in the present invention.

[0064] The accompanying drawings are numerals: 100, support; 110, transmission chamber; 120, transmission motor; 200, transmission assembly; 210, cylinder; 220, telescopic chamber; 230, limiting ring groove; 240, first rotating block; 300, sliding assembly; 310, vertical slide groove; 320, slider; 330, connecting arm; 340, screw; 350, second rotating block; 360, threaded block; 370, transmission gear disc; 380, mounting groove; 400, piston plate; 410, fixed head; 4 20. Crank; 430. Articulated cylindrical pin; 500. Valve block assembly; 510. Valve body; 520. Slot; 530. Fixing rod; 531. Embedded through hole; 600. Rotating shaft; 610. Flat key; 620. Handle; 700. Sleeve assembly; 710. Upper contact sleeve; 720. Vertical hydraulic rod; 730. Fixing frame; 740. Horizontal hydraulic rod; 750. Mounting boom; 800. Connecting rod block; 810. Guide horn; 820. Articulated hole; 900. Positioning mechanism. DETAILED DESCRIPTION

[0065] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0066] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0067] like Figure 1 As shown, this embodiment provides a production device and process for a double-link manual sealing valve, including:

[0068] The support 100 has a transmission cavity 110 at its upper end, and a transmission motor 120 is provided on the right side of the transmission cavity 110. The support 100 is used for overall support;

[0069] The positioning mechanism 900 is composed of a transmission assembly 200 and a sliding assembly 300; the transmission assembly 200 is fixedly mounted on the upper end of the support 100 for guiding during installation; the sliding assembly 300 is mounted on the upper end of the transmission assembly 200 for installation;

[0070] The piston plate 400 is placed in the middle of the sliding assembly 300;

[0071] The valve block assembly 500 is clamped on the upper end of the transmission assembly 200 for installation, and a rotating shaft 600 is inserted at the front end;

[0072] The sleeve assembly 700 is arranged on the upper end of the support 100, and a connecting rod block 800 is installed on the lower end for installation.

[0073] In the present technical solution, when installing the double-link manual closed valve, the installation position of the double-link is inside the valve cavity. At this time, the valve block assembly 500 is first installed to a horizontal position to ensure that the valve body installation position is fixed and balanced; then the piston plate 400 is placed on the sliding assembly 300, and the transmission assembly 200 is driven to make the piston plate 400 close to the valve block assembly 500. The connecting rod block 800 is installed on the piston plate 400 through the sleeve assembly 700, and then the rotating shaft 600 is inserted to complete the upper installation of the connecting rod. Finally, the second connecting rod is manually connected between the piston plate 400 and the valve block assembly 500 to complete the installation of the double connecting rod.

[0074] As shown in FIG2 , specifically, the positioning mechanism 900 includes:

[0075] The cylinder 210 is fixedly connected to the upper end of the transmission chamber 110, has a slot at the upper end, and has a telescopic chamber 220 inside;

[0076] The limiting ring groove 230 is provided at the middle portion of the lower end wall of the telescopic cavity 220;

[0077] The first rotating block 240 is rotatably disposed in the middle of the limiting ring groove 230;

[0078] The vertical slide groove 310 is fixedly provided at the left and right end walls of the telescopic cavity 220; a slider 320 is slidably provided on the vertical slide groove 310;

[0079] The connecting arm 330 is connected to the two sliders 320 and has a screw 340 at its lower end;

[0080] The second rotating block 350 is fixedly disposed in the middle of the first rotating block 240 and is hollow inside;

[0081] The threaded block 360 is fixedly disposed on the upper end of the second rotating block 350 and is threadedly driven by the screw 340;

[0082] The transmission gear plate 370 is fixedly arranged at the lower end of the second rotating block 350 and is gear-driven with the transmission motor 120;

[0083] The mounting groove 380 is fixedly connected to the upper end of the connecting arm 330 and is bowl-shaped;

[0084] In the present technical solution, when the transmission gear disc 370 and the second rotating block 350 rotate as a whole, the second rotating block 350 rotates, and the screw 340 is connected to the connecting arm 330 as a whole, limiting the rotational freedom of the screw 340, and the screw 340 can only move in the vertical direction. At this time, when the second rotating block 350 rotates and the screw 340 is threadedly driven, the height of the installation groove 380 is increased to drive the piston plate 400 to the installation position; and the lifting adopts threaded transmission, which has high adjustability and self-locking property, so that the piston plate 400 is stable when lifted, which is convenient for installation.

[0085] In a preferred embodiment of the present invention:

[0086] As shown in FIG6 , it is characterized in that the piston plate 400 further includes:

[0087] The fixing head 410 is fixedly connected to the upper end of the piston plate 400 by bolts, and the upper end of the mounting groove 380 can be engaged with the bolts at the lower end of the piston plate 400;

[0088] The crank 420 is fixedly connected to the upper end of the fixed head 410, and the upper end is curved;

[0089] The hinged cylindrical pin 430 is fixedly connected to the curved middle portion of the crank 420 for mounting the piston plate 400 .

[0090] In this technical solution, the fixing head 410 is fixed to the piston plate 400 by bolts. When the piston plate 400 is manually installed, it is positioned by the bolts extending from the lower end, so that the installation of the mounting groove 380 and the piston plate 400 can be quickly completed.

[0091] In a preferred embodiment of the present invention:

[0092] Figure 4, Figure 5 As shown, it is characterized in that the valve block assembly 500 includes:

[0093] The valve body 510 is hollow inside and is manually locked in the slot at the upper end of the cylinder 210;

[0094] The slot 520 is fixedly formed on the left end wall of the valve body 510;

[0095] The fixing rod 530 is inserted into the slot 520 and fixed to the valve body 510 by screws. The right end is bent to serve as a fixed end when the connecting rod is installed;

[0096] The through hole 531 is fixedly provided at the right end of the fixing rod 530 and is used for the hinge connection of the connecting rod;

[0097] In this technical solution, when assembling the double connecting rod, first insert the fixing rod 530 into the slot 520, so that the bend of the embedded through hole 531 is opposite to the mounting hole of the rotating shaft 600, and then fix the fixing rod 530 through threads to ensure the installation of the connecting rod driving part.

[0098] In a preferred embodiment of the present invention:

[0099] Figure 1, Figure 3 As shown, it is characterized in that the set component 700 includes:

[0100] The upper contact sleeve 710 is in the shape of a cylinder with an open lower end;

[0101] A vertical hydraulic rod 720 is fixedly connected between the upper contact sleeve 710 and the support 100;

[0102] The fixing frame 730 is fixedly connected to the rear end of the upper contact sleeve 710.

[0103] A horizontal hydraulic rod 740 is fixedly connected to the rear end wall of the upper contact sleeve 710, and its telescopic rod is slidably mounted on the fixed frame 730;

[0104] The boom 750 is installed and fixedly connected to the front end of the telescopic rod of the horizontal hydraulic rod 740. A magnetic slot is provided at the lower end for adsorbing the connecting rod block 800 for installation.

[0105] In this technical solution, when installing the double link, a strong magnet is provided at the lower end of the mounting boom 750. At this time, the connecting rod block 800 is installed at the lower end of the mounting boom 750. At this time, the vertical hydraulic rod 720 extends to drive the connecting rod block 800 to the installation position, and then the vertical hydraulic rod 720 hovers and the horizontal hydraulic rod 740 contracts. At this time, the connecting rod block 800 is installed in the installation position to complete the articulation of the first link.

[0106] As shown in FIG7 , specifically, the connecting rod block 800 includes:

[0107] The guide horn 810 is fixedly mounted on the left end of the connecting rod block 800 and is in the shape of a hollow cap with a keyway provided at the internal through hole.

[0108] The hinge hole 820 is provided at the right end of the connecting rod block 800 and can be sleeved on the hinge cylindrical pin 430 for hinge connection of the connecting rod.

[0109] In this technical solution, when the first connecting rod is articulated, the articulation hole 820 has been inserted into the articulation cylindrical pin 430, and then the rotating shaft 600 is inserted into the guide horn 810 through the hole of the valve block assembly 500 to complete the articulation of the first connecting rod, and then the upper end of the crank 420 is articulated with the fixed rod 530 through the second connecting rod.

[0110] As shown in FIG5 , specifically, the rotating shaft 600 includes:

[0111] A flat key 610 is fixedly disposed in the middle of the rotating shaft 600 and can engage with the guide horn 810;

[0112] The handle 620 is fixedly connected to the upper end of the rotating shaft 600 and is used to drive the rotating shaft 600 to rotate.

[0113] In this technical solution, the flat key 610 is embedded with the guide horn 810. When the connecting rod block 80 needs to be driven to rotate, the connecting rod block 800 can be driven to rotate by manually turning the handle 620, thereby completing the opening and closing of the valve.

[0114] According to the above-mentioned production equipment and process of a double-link manual closed valve, its use method includes the following steps:

[0115] Step 1: First, securely connect the piston plate 400 to the sliding assembly 300, so that the mounting groove 380 and the piston plate 400 become a whole. Then, insert the fixing rod 530 into the slot 520 to secure it. Then, manually clamp the valve body 510 onto the sliding assembly 300.

[0116] Step 2: Start the transmission motor 120, which drives the sliding assembly 300 to rotate, and then drives the piston plate 400 to move upward to a predetermined position through the threaded block 360;

[0117] Step 3: Fix the connecting rod block 800 to the lower end of the mounting boom 750, then start the vertical hydraulic rod 720 and move it downward until the connecting rod block 800, the piston plate 400 and the valve block assembly 500 are in the same position, then retract the horizontal hydraulic rod 740, at which point the hinge hole 820 is inserted into the hinge cylindrical pin 430;

[0118] Step 4: Finally, insert the rotating shaft 600 into the flat key 610 and embed it into the guide horn 810 to complete the installation of the connecting rod. Finally, manually insert the second connecting rod between the bent end of the fixing rod 530 and the hinged cylindrical pin 430 to complete the installation.

[0119] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A production equipment for a double-link manual sealing valve, characterized in that: include: The support (100) has a transmission cavity (110) at its upper end, a transmission motor (120) is provided at the right portion of the transmission cavity (110), and the support (100) is used for overall support; The positioning mechanism (900) is composed of a transmission assembly (200) and a sliding assembly (300); the transmission assembly (200) is fixedly arranged on the upper end of the support (100) for guiding during installation; the sliding assembly (300) is arranged on the upper end of the transmission assembly (200) for installation; A piston plate (400) is placed in the middle of the sliding assembly (300); A valve block assembly (500) is clamped on the upper end of the transmission assembly (200) for installation, with a rotating shaft (600) inserted at the front end; A sleeve assembly (700) is arranged on the upper end of the support (100), and a connecting rod block (800) is installed on the lower end for installation; The positioning mechanism (900) comprises: a cylinder (210) fixedly connected to the upper end of the transmission cavity (110), with a slot provided at the upper end and a telescopic cavity (220) provided inside; A limiting ring groove (230) is provided at the middle portion of the lower end wall of the telescopic cavity (220); A first rotating block (240) is rotatably arranged in the middle of the limiting ring groove (230); A vertical slide groove (310) is fixedly arranged at the left and right end walls of the telescopic cavity (220); a slider (320) is slidably arranged on the vertical slide groove (310); A connecting arm (330) is connected to the two sliders (320), and a screw (340) is provided at the lower end thereof; A second rotating block (350) is fixedly arranged in the middle of the first rotating block (240) and is hollow inside; A threaded block (360) is fixedly mounted on the upper end of the second rotating block (350) and is threadedly driven with the screw rod (340); A transmission gear disc (370) is fixedly arranged at the lower end of the second rotating block (350) and is gear-driven with the transmission motor (120); The mounting groove (380) is fixedly connected to the upper end of the connecting arm (330) and is bowl-shaped.

2. The production equipment of a double-link manual sealing valve according to claim 1, characterized in that: The piston plate (400) further comprises: a fixing head (410) fixedly connected to the upper end of the piston plate (400) by means of bolts, and the upper end of the mounting groove (380) can be engaged with the bolts at the lower end of the piston plate (400); a crank (420) fixedly connected to the upper end of the fixed head (410), the upper end of which is curved; A hinged cylindrical pin (430) is fixedly connected to the curved middle portion of the crank (420) and is used for mounting the piston plate (400).

3. The production equipment of a double-link manual sealing valve according to claim 2, characterized in that: The valve block assembly (500) comprises: a valve body (510) which is hollow inside and is manually clamped in a clamping groove at the upper end of the cylinder (210); a slot (520) fixedly provided on the left end wall of the valve body (510); A fixing rod (530) is inserted into the slot (520) and fixed to the valve body (510) by screws, with the right end bent to serve as a fixed end when the connecting rod is installed; An embedded through hole (531) is fixedly provided at the right end of the fixing rod (530) and is used for the hinge connection of the connecting rod.

4. The production equipment of a double-link manual sealing valve according to claim 3, characterized in that: The sleeve assembly (700) comprises: an upper contact sleeve block (710) in the shape of a tube with an open lower end; A vertical hydraulic rod (720) is fixedly connected between the upper contact block (710) and the support (100); A fixed frame (730) is fixedly connected to the rear end of the upper contact sleeve (710); a horizontal hydraulic rod (740) is fixedly connected to the rear end wall of the upper contact sleeve (710), and its telescopic rod is slidably arranged on the fixed frame (730); The boom (750) is installed and fixedly connected to the front end of the telescopic rod of the horizontal hydraulic rod (740). A magnetic slot is provided at the lower end for adsorbing the connecting rod block (800) for installation.

5. The production equipment of a double-link manual sealing valve according to claim 4, characterized in that: The connecting rod block (800) comprises: a guide horn (810) fixedly arranged at the left end of the connecting rod block (800), in the shape of a cap with a hollow interior, and a keyway provided at the internal through hole; The hinge hole (820) is provided at the right end of the connecting rod block (800) and can be sleeved on the hinge cylindrical pin (430) for hinge connection of the connecting rod.

6. The production equipment of a double-link manual sealing valve according to claim 5, characterized in that: The rotating shaft (600) includes: a flat key (610) fixedly arranged at the middle of the rotating shaft (600), and the flat key (610) can be engaged with the guide horn (810); The handle (620) is fixedly connected to the upper end of the rotating shaft (600) and is used to drive the rotating shaft (600) to rotate.

7. A process for producing the double-link manual sealing valve according to claim 6, characterized in that: Step 1: First, the piston plate (400) is fixedly connected to the sliding assembly (300), so that the mounting groove (380) and the piston plate (400) become a whole, and then the fixing rod (530) is inserted into the slot (520) and fixed, and then the valve body (510) is manually clamped on the sliding assembly (300); Step 2: Start the transmission motor (120), the transmission motor (120) drives the sliding assembly (300) to rotate, and then drives the piston plate (400) to move upward to a predetermined position through the threaded block (360); Step 3: Fix the connecting rod block (800) to the lower end of the mounting boom (750), then start the vertical hydraulic rod (720) to move downward until the connecting rod block (800), the piston plate (400) and the valve block assembly (500) are in the same position, then retract the horizontal hydraulic rod (740), at which time the hinge hole (820) is inserted into the hinge cylindrical pin (430); Step 4: Finally, insert the rotating shaft (600) into the flat key (610) and embed it into the guide horn (810) to complete the installation of the connecting rod. Finally, manually insert the second connecting rod between the bent end of the fixing rod (530) and the hinged cylindrical pin (430) to complete the installation.

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