A stopper nozzle quick-change device

Abstract

The invention discloses a stopper rod and water nozzle quick-change device, which belongs to the technical field of smelting equipment accessories and comprises a mounting assembly and a stopper rod, wherein an extended water nozzle assembly is fixedly mounted on the upper end of the mounting assembly, the stopper rod is located above the extended water nozzle assembly, an upper water nozzle assembly is plugged into the lower end of the extended water nozzle assembly, a pad assembly is fixedly mounted on the lower end of the mounting assembly, a lower lining assembly is rotatably mounted on the lower end of the pad assembly, and a lower water nozzle assembly is plugged into the middle position of the lower lining assembly, and the extended water nozzle assembly is conveniently installed by providing a limit groove, and the positioning accuracy of the extended water nozzle assembly, the upper water nozzle assembly and the lower water nozzle assembly during installation is improved by means of guide grooves and positioning grooves, and the extended water nozzle assembly, the upper water nozzle assembly and the lower water nozzle assembly are conveniently pressed together by means of gas springs, elastic parts and springs, and when replacing, only the screw needs to be turned, so that the lower water nozzle assembly and the upper water nozzle assembly can be disassembled, which is convenient for operation and use.

Description

Technical Field

[0001] The invention relates to a smelting device, in particular to a stopper rod and nozzle quick-change device, belonging to the technical field of smelting equipment accessories. Background Art

[0002] Steel companies need to use a quick-change nozzle device in the continuous casting production of steelmaking. The nozzle refers to the junction of the frame and parts formed when the factory casts the model. It is the inlet and outlet for the flow of heated liquid materials. When used in steelmaking, it serves as the outlet of molten steel. When in use, the entire stopper rod is installed in the continuous casting tundish, and the opening and closing degree of the water outlet at the bottom of the tundish is controlled by lifting and lowering displacement, thereby controlling the flow of molten steel. Due to the high temperature characteristics and corrosion effects of molten steel, the corrosion effect on the stopper rod and the nozzle is relatively serious, and the nozzle needs to be replaced frequently to avoid accidents. Therefore, a stopper rod and nozzle quick-change device is needed to quickly replace the nozzle.

[0003] As disclosed in the publication number: CN204672946U, a wear-resistant stopper rod water nozzle quick-change device comprises an extended water nozzle, a water nozzle positioning hole is provided at the lower part of the extended water nozzle, the lower part of the extended water nozzle cooperates with the mounting plate, the lower part of the upper water nozzle is installed in the upper guide plate, the lower guide plate is installed on the bottom surface of the upper guide plate, the gas spring is installed on the lower guide plate, the bottom of the lower water nozzle is installed in the upper port of the immersed water nozzle, the upper part of the immersed water nozzle is a cone and the lower part is a cylinder, the bottom surface of the extended water nozzle touches the upper surface of the upper guide plate, the upper port of the first through hole of the extended water nozzle cooperates with the zirconium head at the bottom end of the stopper rod body, a cylindrical through hole is provided in the center part of the immersed water nozzle, a conical through hole is provided in the center part of the cone, an annular groove is provided on the inner wall of the through hole at the upper end of the immersed water nozzle, a cylindrical zirconium cylinder is installed in the annular groove, and the upper end of the cylindrical zirconium cylinder touches the small diameter end of the conical zirconium cylinder. This technical solution has high positioning accuracy and is convenient and quick when replacing the water outlet.

[0004] Another example is the publication number: CN108247034A, an aluminum-killed steel-magnesium integral stopper rod water nozzle quick-change device, comprising a stopper rod, the bottom of the stopper rod is provided with an extended water nozzle, the surface of the extended water nozzle is fixedly connected with a mounting plate, the bottom of the extended water nozzle is provided with a guide plate, the bottom of the guide plate is provided with a water nozzle, both sides of the bottom of the mounting plate are fixedly connected with bolts, the bottom end of the bolt passes through the guide plate and extends to the outside of the guide plate, and the surface of the bolt is threadedly connected with a nut. The present invention makes the aluminum-killed steel-magnesium integral stopper rod water nozzle quick-change device easy to use by arranging bolts, nuts, gas springs, outer linings, brick seats, zirconium bowls, water nozzle core installations, lower water nozzles, conical zirconium bowls, cylindrical zirconium bowls and through holes for coordinated use, so that the aluminum-killed steel-magnesium integral stopper rod water nozzle quick-change device will not have problems with the water nozzle on the pouring channel, the pouring quality is guaranteed, and it is convenient for people to use.

[0005] The water inlet can be replaced during use, but the replacement effect is not fast enough during use, and it is not convenient and quick enough during installation. After installation, the positioning effect is not good, and when pressing, the pressing effect between the upper water inlet and the lower water outlet is not good. During use, there are problems such as low stability and inconvenience in fixing, which makes it inconvenient to use. Summary of the invention

[0006] The purpose of the present invention is to provide a stopper rod water nozzle quick-change device in order to solve the above-mentioned problems, which can facilitate the precise positioning and installation of the extended water nozzle assembly, the upper water nozzle assembly and the lower water nozzle assembly, and improve the convenience of installation, facilitate quick replacement, facilitate operation, and improve stability during use, making it easy to use.

[0007] The present invention achieves the above-mentioned purpose through the following technical scheme: a stopper rod and nozzle quick-change device, comprising a mounting assembly and a stopper rod, and an extended nozzle assembly is fixedly mounted on the upper end of the mounting assembly, the stopper rod is located above the extended nozzle assembly, and the lower end of the stopper rod coincides with the upper end of the extended nozzle assembly, and an upper nozzle assembly is plugged into the lower end of the extended nozzle assembly, a pad assembly is fixedly mounted on the lower end of the mounting assembly, and a lower lining assembly is rotatably mounted on the lower end of the pad assembly, a lower nozzle assembly is plugged into the middle position of the lower lining assembly, and the upper end of the lower nozzle assembly is in contact with the upper nozzle assembly, the lower end of the lower nozzle assembly penetrates the lower lining assembly and extends to the lower end of the lower lining assembly, the extended nozzle assembly, the upper nozzle assembly and the lower The nozzle assemblies are connected to each other. When in use, the installation assembly is installed on the external tundish, the extended nozzle assembly is extended to the interior of the tundish, and the stopper rod is installed on the external lifting mechanism so that the lower end of the stopper rod is located on the extended nozzle assembly. By controlling the distance between the stopper rod and the extended nozzle assembly, it is convenient to start and stop the water outlet speed of the molten steel. The upper nozzle assembly is inserted through the pad assembly and connected to the lower end of the extended nozzle assembly, and the lower nozzle assembly is inserted into the lower lining assembly. By rotating the lower lining assembly, the lower nozzle assembly and the upper nozzle assembly are pressed tightly, and one end of the lower lining assembly is fixedly connected to the pad assembly, so that the lower nozzle assembly is convenient to install.

[0008] Preferably, in order to facilitate the installation and fixation of the present technical solution, the mounting assembly includes a mounting plate, and a through hole is opened in the middle position of the mounting plate, and the extended nozzle assembly is inserted into the inside of the through hole, the upper end of the mounting plate is located on the outside of the through hole and evenly opens a limiting groove, and the outer side of the extended nozzle assembly is clamped in the inside of the limiting groove, and a countersunk hole is opened in the inside of the limiting groove, the countersunk hole passes through the mounting plate and extends to the lower side of the mounting plate, and the external bolt is inserted into the inside of the countersunk hole and extends to the inside of the limiting groove and the The extended water inlet assemblies are threadedly connected, and notches are opened in the middle positions on both sides of the mounting plate, and gas springs are fixedly installed on both sides of the inside of the notches, and one end of the gas spring is fixedly connected to the pad assembly, and there is a buffer gap between the pad assembly and the mounting plate. During installation, the mounting plate is fixedly connected to the external intermediate package, and the extended water inlet assembly is inserted into the inside of the transparent hole, so as to facilitate the precise positioning of the extended water inlet assembly, and it is fixed by the limit groove and the countersunk hole to improve the stability during use.

[0009] Preferably, in order to facilitate the installation of the extended water outlet assembly, the extended water outlet assembly includes an extended water outlet, and a limiting block is fixedly installed on the outer side of the lower end of the extended water outlet in a circumferential array, and the limiting block is clamped in the interior of the limiting groove, and a threaded hole is opened at the lower end of the limiting block, the extended water outlet is fixedly connected to the mounting plate through the threaded hole on the limiting block, and the lower end of the extended water outlet is inserted into the interior of the transparent hole, the middle of the extended water outlet is a hollow structure, and a bowl groove of a bowl-shaped structure is opened at the upper end of the extended water outlet, a zirconium bowl is fixedly installed in the bowl groove, and the inner side of the zirconium bowl coincides with the lower end of the stopper rod, and the extended water outlet is provided with a plurality of grooves, wherein the groove ... A wear-resistant cylinder is fixedly installed inside the long water outlet, a conical groove is provided at the inner lower end of the extended water outlet, and the conical groove is a trumpet-mouth structure, guide grooves are evenly provided on the inner side of the conical groove, and the upper end of the upper water outlet assembly is inserted into the inner part of the conical groove, and the outer side of the upper end of the upper water outlet assembly is clamped in the inner part of the guide groove, and the accuracy of installing the extended water outlet is improved through the limit block, and the service life of the extended water outlet is improved through the zirconium bowl, and the wear-resistant cylinder, the inner lower end of the wear-resistant cylinder is a conical structure, which facilitates the molten steel to enter the interior of the upper water outlet assembly, and through the conical groove, the upper water outlet assembly is easy to install.

[0010] Preferably, in order to facilitate the installation of the upper water inlet assembly, the upper water inlet assembly includes an upper water inlet, and the upper end of the upper water inlet is a conical structure, a guide strip is evenly fixedly installed on the outer side of the upper end of the upper water inlet, the upper end of the upper water inlet is inserted into the inside of the conical groove, and the guide strip is inserted into the inside of the guide groove, a positioning groove is evenly opened on the outer side of the lower end of the upper water inlet, and the positioning groove is a conical structure, a boss is fixedly installed in the middle position of the lower end of the upper water inlet, and the boss is a truncated cone structure, and the outer side of the upper end of the lower water inlet assembly Inserted in the positioning groove, and the boss is inserted in the middle position of the upper end of the downspout assembly. When in use, the guide bar is used to facilitate the accurate installation of the upper water inlet in the guide groove on the extended water inlet assembly, which is convenient for positioning. When in use, the stability during use is improved to avoid rotation during buffering, which is convenient for use. The positioning groove and the boss are used to facilitate the connection between the upper water inlet and the downspout assembly, which facilitates the flow of molten steel and improves the stability during connection.

[0011] Preferably, in order to improve the buffering effect between the upper water inlet assembly and the lower water inlet assembly, the pad assembly includes a pad, and a through hole is opened in the middle position of the pad, and the connection position of the upper water inlet assembly and the lower water inlet assembly is located inside the through hole, grooves are opened on both sides of the lower end of the pad, and an elastic pad is fixedly installed inside the groove, the lower end of the elastic pad contacts with the upper end of the lower lining plate assembly, connecting holes are opened at both ends of both sides of the pad, and the lower end of the gas spring is fixedly connected to the connecting holes, a rotating seat is fixedly installed on one side of the pad, and the lower lining plate assembly One end of the component is rotatably installed in the inside of the rotating seat, and screws are fixedly installed on both sides of the other end of the lower end of the pad, and one end of the lower lining plate assembly is clamped on the screw, through the pad, the pad is convenient for the pad to be raised and lowered on the mounting plate by the gas spring, thereby reducing the connection rigidity between the pad assembly and the mounting assembly to avoid unstable connection when the temperature difference is large, and facilitating buffering of thermal expansion and contraction, and through the elastic pad, the clamping effect between the pad and the lower lining plate assembly is improved to avoid shaking, and the lower lining plate assembly is convenient to fix through the screw.

[0012] Preferably, in order to facilitate quick disassembly and replacement, the lower lining plate assembly includes a lower lining plate, and a shaft rod is fixedly installed at one end of the lower lining plate, and the lower lining plate is rotatably installed on the rotating seat through the shaft rod, and bayonet holes are opened on both sides of the other end of the lower lining plate, and the lower lining plate is clamped with the screw rod through the bayonet hole, a circular hole is opened in the middle position of the lower lining plate, the downspout assembly is inserted into the inside of the circular hole, and the upper surface of the lower lining plate is located outside the circular hole and has pin holes in a circumferential array, and a spring is fixedly installed at the lower end of the pin hole, and a top plate is fixedly installed at the upper end of the spring, and the downspout assembly The outer side of the lower end is inserted into the inside of the pin hole, and the outer side of the lower end of the water outlet assembly is pressed tightly against the top plate, and the lower lining plate is convenient to rotate inside the rotating seat on the pad through the shaft rod. When replacing, the lower lining plate assembly is made vertical, which is convenient for replacement, and the lower lining plate is convenient to fix through the bayonet, and the water outlet assembly is convenient to install through the circular hole, so that the lower end of the water outlet assembly is inserted into the inside of the pin hole for easy positioning, and the spring and the top plate are convenient to press the water outlet assembly and the upper water outlet assembly for convenient connection.

[0013] Preferably, in order to facilitate the installation of the downspout assembly, the downspout assembly includes a downspout, and the downspout is inserted into the inside of the circular hole, the lower end of the downspout is a conical structure, and a pin is evenly fixedly installed on the outer side of the lower end of the downspout, the pin is inserted into the inside of the pin hole, and the lower end of the pin is pressed tightly against the top plate, a slot is provided in the middle position of the upper end of the downspout, and the slot coincides with the boss, the boss is inserted into the inside of the slot, and the outer side of the upper end of the downspout is fixedly mounted on the outer side of the lower end of the downspout. There are positioning points in a circular array on the side, and the positioning points are in a conical structure. The positioning points are inserted into the inside of the positioning groove. Through the pin rod, the water outlet is conveniently installed on the lower lining plate, and an upward thrust is applied to the water outlet, so that the water outlet and the upper water outlet are pressed tightly together. Through the slot and the positioning points, the water outlet and the upper water outlet are pressed tightly together, which is convenient for positioning, precise installation, and use. It also improves stability during use and avoids rotation.

[0014] The beneficial effects of the present invention are as follows: by providing a limit groove on the mounting plate, it is convenient to accurately position and install the extended water inlet assembly, and by using the guide groove and the positioning groove, the positioning accuracy of the extended water inlet assembly, the upper water inlet assembly and the lower water inlet assembly during installation is improved, and by using the gas spring, the elastic part and the spring, it is convenient to press the extended water inlet assembly, the upper water inlet assembly and the lower water inlet assembly together, and the lower water inlet assembly is clamped on the lower lining assembly, and the lower lining assembly is rotatably installed on the pad assembly, and only the screw needs to be turned, so that the lower water inlet assembly and the upper water inlet assembly can be disassembled, replaced, operated and used conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the installation assembly in the present invention.

[0018] Figure 4 It is a schematic diagram of the partial structure of the upper water inlet assembly in the present invention.

[0019] Figure 5 It is a schematic diagram of the partial structure of the upper water inlet assembly in the present invention.

[0020] Figure 6 It is a schematic diagram of the partial structure of the pad assembly in the present invention.

[0021] Figure 7 It is a schematic diagram of the partial structure of the lower lining plate assembly in the present invention.

[0022] Figure 8 It is a schematic diagram of the partial structure of the downcomer assembly in the present invention.

[0023] In the figure: 1. Mounting assembly; 101. Mounting plate; 102. Through hole; 103. Limiting groove; 104. Countersunk hole; 105. Notch; 106. Gas spring; 2. Stopper rod; 3. Extended nozzle assembly; 301. Extended nozzle; 302. Limiting block; 303. Threaded hole; 304. Bowl groove; 305. Zirconium bowl; 306. Wear-resistant cylinder; 307. Conical groove; 308. Guide groove; 4. Upper nozzle assembly; 401. Upper nozzle; 402. Guide strip; 403. Positioning Groove; 404, boss; 5, pad assembly; 501, pad; 502, through hole; 503, groove; 504, elastic pad; 505, connecting hole; 506, rotating seat; 507, screw; 6, lower lining assembly; 601, lower lining; 602, shaft; 603, bayonet; 604, round hole; 605, pin hole; 606, spring; 607, top plate; 7, drain assembly; 701, drain; 702, pin; 703, slot; 704, positioning point. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-8As shown, a stopper rod and nozzle quick-change device comprises a mounting assembly 1 and a stopper rod 2, and an extended nozzle assembly 3 is fixedly mounted on the upper end of the mounting assembly 1, the stopper rod 2 is located above the extended nozzle assembly 3, and the lower end of the stopper rod 2 coincides with the upper end of the extended nozzle assembly 3, and an upper nozzle assembly 4 is plugged into the lower end of the extended nozzle assembly 3, a pad assembly 5 is fixedly mounted on the lower end of the mounting assembly 1, and a lower lining assembly 6 is rotatably mounted on the lower end of the pad assembly 5, a lower nozzle assembly 7 is plugged into the middle position of the lower lining assembly 6, and the upper end of the lower nozzle assembly 7 is in contact with the upper nozzle assembly 4, the lower end of the lower nozzle assembly 7 penetrates the lower lining assembly 6, and extends to the lower end of the lower lining assembly 6, the extended nozzle assembly 3, the upper nozzle assembly 4 and the lower nozzle assembly 7 are connected, and when in use When in use, the installation component 1 is installed on the external tundish, the extended water inlet component 3 is extended to the inside of the tundish, and the stopper rod 2 is installed on the external lifting mechanism, so that the lower end of the stopper rod 2 is located on the extended water inlet component 3, and the distance between the stopper rod 2 and the extended water inlet component 3 is controlled, so that the water outlet speed of the molten steel can be started and stopped. The upper water inlet component 4 is inserted into the lower end of the extended water inlet component 3 through the pad assembly 5, and the lower water inlet component 7 is inserted into the lower lining assembly 6. By rotating the lower lining assembly 6, the lower water inlet component 7 and the upper water inlet component 4 are pressed tightly, and one end of the lower lining assembly 6 is fixedly connected to the pad assembly 5, so that the lower water inlet component 7 is convenient to install, quickly disassemble, operate, and replace.

[0026] like Figure 3 As shown, the mounting assembly 1 includes a mounting plate 101, and a through hole 102 is opened in the middle position of the mounting plate 101, and the extended nozzle assembly 3 is inserted into the inside of the through hole 102, and the upper end of the mounting plate 101 is located on the outside of the through hole 102 and evenly opens a limiting groove 103, and the outside of the extended nozzle assembly 3 is clamped in the inside of the limiting groove 103, and a countersunk hole 104 is opened in the inside of the limiting groove 103, and the countersunk hole 104 passes through the mounting plate 101 and extends to the lower side of the mounting plate 101, and the external bolt is inserted into the inside of the countersunk hole 104, and extends to the inside of the limiting groove 103 and is threaded with the extended nozzle assembly 3. Connection, notches 105 are opened in the middle positions on both sides of the mounting plate 101, and gas springs 106 are fixedly installed on both sides of the inside of the notch 105, and one end of the gas spring 106 is fixedly connected to the pad assembly 5, and there is a buffer gap between the pad assembly 5 and the mounting plate 101. During installation, the mounting plate 101 is fixedly connected to the external intermediate package, and the extended water inlet assembly 3 is inserted into the inside of the transparent hole 102, which is convenient for precise positioning of the extended water inlet assembly 3, and is fixed by the limit groove 103 and the countersunk hole 104, thereby improving stability during use, facilitating use, and easy fixing.

[0027] like Figure 3As shown, the extended water inlet assembly 3 includes an extended water inlet 301, and a limiting block 302 is fixedly installed on the outer side of the lower end of the extended water inlet 301 in a circumferential array, and the limiting block 302 is clamped in the inside of the limiting groove 103, and a threaded hole 303 is opened at the lower end of the limiting block 302. The extended water inlet 301 is fixedly connected to the mounting plate 101 through the threaded hole 303 on the limiting block 302, and the lower end of the extended water inlet 301 is inserted into the inside of the transparent hole 102. The middle of the extended water inlet 301 is a hollow structure, and a bowl groove 304 of a bowl-shaped structure is opened at the upper end of the extended water inlet 301, a zirconium bowl 305 is fixedly installed in the bowl groove 304, and the inner side of the zirconium bowl 305 coincides with the lower end of the stopper rod 2, and the inner part of the extended water inlet 301 is fixedly installed A wear-resistant cylinder 306 is installed, a tapered groove 307 is provided at the inner lower end of the extended water outlet 301, and the tapered groove 307 is a trumpet-mouth structure, guide grooves 308 are evenly provided on the inner side of the tapered groove 307, and the upper end of the upper water outlet component 4 is inserted into the inner part of the tapered groove 307, and the outer side of the upper end of the upper water outlet component 4 is clamped in the inner part of the guide groove 308, and the accuracy of installing the extended water outlet 301 is improved through the limit block 302, and the service life is improved through the zirconium bowl 305, and the wear-resistant cylinder 306, the inner lower end of the wear-resistant cylinder 306 is a tapered structure, which facilitates the molten steel to enter the interior of the upper water outlet component 4, and through the tapered groove 307, it is convenient to install the upper water outlet component 4, convenient to connect, and convenient to use.

[0028] like Figure 5 As shown, the upper water inlet assembly 4 includes an upper water inlet 401, and the upper end of the upper water inlet 401 is a conical structure, and a guide strip 402 is evenly fixedly installed on the outer side of the upper end of the upper water inlet 401, and the upper end of the upper water inlet 401 is inserted into the inside of the conical groove 307, and the guide strip 402 is inserted into the inside of the guide groove 308, and a positioning groove 403 is evenly opened on the outer side of the lower end of the upper water inlet 401, and the positioning groove 403 is a conical structure, and a boss 404 is fixedly installed at the middle position of the lower end of the upper water inlet 401, and the boss 404 is a truncated cone structure, and the upper end of the lower water inlet assembly 7 is inserted into the outer side of the upper water inlet 401. Inside the positioning groove 403, the boss 404 is inserted into the middle position of the upper end of the downspout assembly 7. When in use, the guide bar 402 is used to facilitate the accurate installation of the upper water inlet 401 inside the guide groove 308 on the extended water inlet assembly 3, which is convenient for positioning. When in use, the stability during use is improved to avoid rotation during buffering, which is convenient for use. The positioning groove 403 and the boss 404 facilitate the connection between the upper water inlet 401 and the downspout assembly 7, which facilitates the flow of molten steel and improves the stability during connection.

[0029] like Figure 6As shown, the pad assembly 5 includes a pad 501, and a through hole 502 is opened in the middle position of the pad 501, and the connection position of the upper water inlet assembly 4 and the lower water inlet assembly 7 is located inside the through hole 502, grooves 503 are opened on both sides of the lower end of the pad 501, and elastic pads 504 are fixedly installed inside the grooves 503, and the lower ends of the elastic pads 504 are in contact with the upper end of the lower lining assembly 6, connecting holes 505 are opened at both ends of both sides of the pad 501, and the lower end of the gas spring 106 is fixedly connected to the connecting hole 505, a rotating seat 506 is fixedly installed on one side of the pad 501, and one end of the lower lining assembly 6 is rotatably mounted. Installed inside the rotating seat 506, screws 507 are fixedly installed on both sides of the other end of the lower end of the pad 501, and one end of the lower lining assembly 6 is clamped on the screw 507. Through the pad 501, the pad 501 is convenient for the gas spring 106 to perform lifting and lowering buffering on the mounting plate 101, thereby reducing the connection rigidity between the pad assembly 5 and the mounting assembly 1, avoiding unstable connection when the temperature difference is large, facilitating buffering of thermal expansion and contraction, and through the elastic pad 504, the clamping effect between the pad 501 and the lower lining assembly 6 is improved to avoid shaking, and the screw 507 is used to fix the lower lining assembly 6.

[0030] like Figure 7 As shown, the lower lining plate assembly 6 includes a lower lining plate 601, and a shaft rod 602 is fixedly installed at one end of the lower lining plate 601, and the lower lining plate 601 is rotatably installed on the rotating seat 506 through the shaft rod 602, and the other end of the lower lining plate 601 is provided with bayonet holes 603 on both sides, and the lower lining plate 601 is clamped with the screw rod 507 through the bayonet holes 603, and a circular hole 604 is provided in the middle position of the lower lining plate 601, and the lower water inlet assembly 7 is inserted into the inside of the circular hole 604, and the upper surface of the lower lining plate 601 is located on the outside of the circular hole 604 and is provided with pin holes 605 in a circumferential array, and a spring 606 is fixedly installed at the lower end of the pin hole 605, and a top plate 607 is fixedly installed at the upper end of the spring 606, and the lower The outer side of the lower end of the water inlet assembly 7 is inserted into the inside of the pin hole 605, and the outer side of the lower end of the water outlet assembly 7 is pressed against the top plate 607, and the lower lining plate 601 is convenient to rotate inside the rotating seat 506 on the pad 501 through the shaft rod 602. When replacing, the lower lining plate assembly 6 is made vertical, which is convenient for replacement, and the lower lining plate 601 is convenient to fix through the bayonet 603, and the water outlet assembly 7 is convenient to install through the circular hole 604, so that the lower end of the water outlet assembly 7 is inserted into the inside of the pin hole 605 for easy positioning, and the spring 606 and the top plate 607 are convenient to press the water outlet assembly 7 and the upper water outlet assembly 4 for easy connection.

[0031] like Figure 8As shown, the water outlet assembly 7 includes a water outlet 701, and the water outlet 701 is inserted into the inside of the circular hole 604, the lower end of the water outlet 701 is a conical structure, and the outer side of the lower end of the water outlet 701 is evenly fixed with a pin rod 702, the pin rod 702 is inserted into the inside of the pin hole 605, and the lower end of the pin rod 702 is pressed against the top plate 607, a slot 703 is provided in the middle position of the upper end of the water outlet 701, and the slot 703 is consistent with the boss 404, the boss 404 is inserted into the inside of the slot 703, and the outer side of the upper end of the water outlet 701 forms a circular array There is a positioning point 704, and the positioning point 704 is a conical structure. The positioning point 704 is inserted into the inside of the positioning groove 403. Through the pin rod 702, the water outlet 701 is conveniently installed on the lower lining plate 601, and an upward thrust is applied to the water outlet 701, so that the water outlet 701 and the water inlet 401 are pressed tightly together. Through the slot 703 and the positioning point 704, the water outlet 701 and the water inlet 401 are pressed tightly together, which is convenient for positioning, precise installation, and use. It also improves stability during use and avoids rotation.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stopper nozzle quick change device, Features: It comprises a mounting assembly (1) and a stopper rod (2), wherein an extended water inlet assembly (3) is fixedly mounted on the upper end of the mounting assembly (1), the stopper rod (2) is located above the extended water inlet assembly (3), and the lower end of the stopper rod (2) coincides with the upper end of the extended water inlet assembly (3), and an upper water inlet assembly (4) is plugged into the lower end of the extended water inlet assembly (3), a backing plate assembly (5) is fixedly mounted on the lower end of the backing plate assembly (5), and a lower lining plate assembly (6) is rotatably mounted on the lower end of the backing plate assembly (5), a lower water inlet assembly (7) is plugged into the middle position of the lower lining plate assembly (6), and the upper end of the lower water inlet assembly (7) is in contact with the upper water inlet assembly (4); The mounting assembly (1) comprises a mounting plate (101), a through hole (102) is provided in the middle of the mounting plate (101), the extended nozzle assembly (3) is inserted into the through hole (102), the upper end of the mounting plate (101) is located outside the through hole (102), and limiting grooves (103) are evenly provided, and the outer side of the extended nozzle assembly (3) is clamped inside the limiting groove (103), and the limiting groove (103) is provided with a countersunk hole (104); Notches (105) are provided at middle positions on both sides of the mounting plate (101), and gas springs (106) are fixedly installed on both sides of the inside of the notches (105), and one end of the gas spring (106) is fixedly connected to the pad assembly (5), and a buffer gap exists between the pad assembly (5) and the mounting plate (101); The pad assembly (5) comprises a pad (501), a through hole (502) is provided in the middle of the pad (501), and the connection position of the upper water inlet assembly (4) and the lower water inlet assembly (7) is located inside the through hole (502), grooves (503) are provided on both sides of the lower end of the pad (501), and elastic pads (504) are fixedly installed inside the grooves (503), and the lower end of the elastic pad (504) is in contact with the upper end of the lower lining assembly (6), and the pad Both ends of both sides of the backing plate (501) are provided with connection holes (505), and the lower end of the gas spring (106) is fixedly connected to the connection hole (505); a rotating seat (506) is fixedly installed on one side of the backing plate (501), and one end of the lower backing plate assembly (6) is rotatably installed inside the rotating seat (506); screw rods (507) are fixedly installed on both sides of the other end of the lower end of the backing plate (501), and one end of the lower backing plate assembly (6) is clamped on the screw rods (507); The lower lining plate assembly (6) comprises a lower lining plate (601), and a shaft (602) is fixedly mounted on one end of the lower lining plate (601), and the lower lining plate (601) is rotatably mounted on the rotating seat (506) via the shaft (602), and bayonet holes (603) are provided on both sides of the other end of the lower lining plate (601), and the lower lining plate (601) is clamped with the screw rod (507) via the bayonet holes (603), and a circular hole (604) is provided in the middle of the lower lining plate (601), and the lower lining plate (601) is provided with a plurality of holes (604) and a plurality of holes (604) are provided in the middle of the lower lining plate (601). The outlet assembly (7) is inserted into the inside of the circular hole (604), and the upper surface of the lower lining plate (601) is located outside the circular hole (604) and is provided with pin holes (605) in a circumferential array, and a spring (606) is fixedly installed at the lower end of the pin hole (605), and a top plate (607) is fixedly installed at the upper end of the spring (606), and the outer side of the lower end of the water outlet assembly (7) is inserted into the inside of the pin hole (605), and the outer side of the lower end of the water outlet assembly (7) is pressed against the top plate (607).

2. A stopper nozzle quick change device according to claim 1, Features: The extended water inlet assembly (3) comprises an extended water inlet (301), and a limiting block (302) is fixedly installed in a circumferential array on the outer side of the lower end of the extended water inlet (301), and the limiting block (302) is clamped in the interior of the limiting groove (103), and a threaded hole (303) is opened at the lower end of the limiting block (302). The extended water inlet (301) is fixedly connected to the mounting plate (101) through the threaded hole (303) on the limiting block (302), and the lower end of the extended water inlet (301) is inserted into the interior of the transparent hole (102), and the middle of the extended water inlet (301) is a hollow structure. A bowl groove (304) with a bowl-shaped structure is provided at the upper end of the extended water outlet (301), a zirconium bowl (305) is fixedly installed inside the bowl groove (304), and the inner side of the zirconium bowl (305) matches the lower end of the stopper rod (2), and a wear-resistant cylinder (306) is fixedly installed inside the extended water outlet (301), a conical groove (307) is provided at the lower end of the inner part of the extended water outlet (301), and the conical groove (307) is a bell-mouth structure, and guide grooves (308) are evenly provided on the inner side of the conical groove (307), and the upper end of the upper water outlet assembly (4) is inserted into the inner part of the conical groove (307).

3. A stopper nozzle quick change device according to claim 2, Features: The upper water inlet assembly (4) comprises an upper water inlet (401), and the upper end of the upper water inlet (401) is a conical structure. A guide strip (402) is evenly fixedly installed on the outer side of the upper end of the upper water inlet (401). The upper end of the upper water inlet (401) is inserted into the interior of the conical groove (307), and the guide strip (402) is inserted into the interior of the guide groove (308). Positioning grooves (403) are evenly opened on the outer side of the lower end of the upper water inlet (401), and the positioning grooves (403) are conical structures. A boss (404) is fixedly installed at the middle position of the lower end of the upper water inlet (401), and the boss (404) is a truncated cone structure. The outer side of the upper end of the lower water inlet assembly (7) is inserted into the interior of the positioning groove (403), and the boss (404) is inserted into the middle position of the upper end of the lower water inlet assembly (7).

4. A stopper nozzle quick change device according to claim 3, Features: The water outlet assembly (7) comprises a water outlet (701), and the water outlet (701) is inserted into the inside of the circular hole (604), the lower end of the water outlet (701) is a conical structure, and a pin rod (702) is evenly fixedly installed on the outer side of the lower end of the water outlet (701), the pin rod (702) is inserted into the inside of the pin hole (605), and the lower end of the pin rod (702) is pressed against the top plate (607), so that A slot (703) is provided in the middle of the upper end of the water outlet (701), and the slot (703) matches the boss (404), and the boss (404) is inserted into the slot (703). Positioning points (704) are arranged in a circular array on the outer side of the upper end of the water outlet (701), and the positioning points (704) are in a conical structure, and the positioning points (704) are inserted into the positioning slot (403).

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