A new hot water circulating shield pump and its protection device

Abstract

The application belongs to the technical field of water pumps, and particularly relates to a novel hot water circulating shield pump protection device, which comprises a water pump shell, a motor is installed at the top end of the water pump shell, an impeller is fixedly connected to the output shaft end of the motor, connecting flanges are fixedly connected to the outer walls of the water outlet end and the water inlet end of the water pump shell, the filter screen frame is used to filter the water flowing into the water pump and the water flowing out of the water pump, so that impurities in the water are prevented from adhering to the impeller and the inside of the shell and causing blockage, the counterclockwise rotating rod is rotated, the gear and the tooth block are matched, the two supporting blocks are conveniently moved in opposite directions to the outside, so that the supporting blocks drive the connecting blocks to move in the moving holes and drive the sliding plates to move to the outside of the water pump shell, when the gear and the tooth block are completely separated, the spring and the push plate are matched, the filter screen frame is conveniently popped out of the connecting pipe, and the filter screen frame is conveniently disassembled and cleaned.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water pumps, and particularly relates to a novel hot water circulating canned pump and a protection device thereof. BACKGROUND

[0002] The driving of a centrifugal pump is to connect the impeller shaft of the pump with the motor shaft through a shaft coupling, so that the impeller rotates with the motor to work. The canned pump is a kind of seal-free pump, and the pump and the driving motor are sealed in a pressure container filled with the pumped medium. The pressure container only has a static seal, and a wire set is used to provide a rotating magnetic field and drive the rotor. This structure cancels the rotating shaft seal device of the traditional centrifugal pump, so that complete sealing can be achieved.

[0003] The hot water circulating canned pump and the protection device thereof can prevent impurities from accumulating in the impeller and the shell, and facilitate the removal of the filter rack for cleaning. SUMMARY

[0004] The present application aims to solve the above technical problems, and provides a novel hot water circulating canned pump and a protection device thereof, which can protect the internal structure of the water pump shell, prevent impurities from accumulating in the impeller and the shell, and conveniently remove the filter rack for cleaning, thereby maintaining the cleanliness of the filter screen in the filter rack.

[0005] Therefore, the present application provides a novel hot water circulating canned pump and a protection device thereof, which comprises a water pump shell, a motor is installed at the top end of the water pump shell, an impeller is fixedly connected to the output shaft end of the motor, connecting flanges are fixedly connected to the outer walls of the water outlet end and the water inlet end of the water pump shell, and the protection device further comprises:

[0006] A connecting pipe is fixedly connected between the water pump shell and the external water pipe through the connecting flanges on both sides of the connecting pipe.

[0007] A positioning and dismounting assembly is arranged at the center position of the inner wall of the connecting pipe, and the positioning and dismounting assembly is located at the center position between the two connecting flanges.

[0008] A limiting assembly is arranged on the outer side of the connecting flange, and the limiting assembly is located on both sides of the connecting pipe.

[0009] A locking assembly is arranged at the positions close to the center of the inner side of the connecting pipe, and the locking assembly is located at one end of the rotating rod.

[0010] In the technical solution, the positioning and disassembling assembly can limit the installation of the filter screen frame, the limiting assembly can limit and fix the connecting pipe between the water pump shell and the external connecting pipe, and the locking assembly can limit and fix the filter screen frame during installation and limit the position of the connecting flange.

[0011] In the above technical solution, further, the positioning and disassembling assembly comprises a placement cavity, the placement cavity is arranged inside the connecting pipe, a sliding plate is symmetrically and slidably connected inside the placement cavity, a moving hole is symmetrically and rotationally arranged on one side of the outer wall of the connecting pipe, a connecting block is fixedly connected to the outer wall of the sliding plate near the moving hole, a supporting block is fixedly connected to one side of the connecting block, a tooth block is fixedly connected to one side of the supporting block, an extrusion plate is slidably embedded in the outer wall of the connecting pipe, a filter screen frame is placed at one end of the extrusion plate, a limiting block is fixedly connected to the inner wall of the connecting pipe near both sides of the filter screen frame, an installation groove is arranged on the inner wall of the connecting pipe near the outer wall of the filter screen frame, springs are point-welded on the inner wall of the installation groove, a push plate is fixedly connected to one end of the springs, a rotating rod is rotatably embedded in the extrusion plate at the middle position on one side, a placing groove is arranged on one side of the rotating rod, and a gear is fixedly sleeved in the placing groove.

[0012] In the technical solution, one end of the two springs is fixedly connected to the push plate, which facilitates the disassembly of the filter screen frame, and the push plate is driven by the force of the springs to conveniently eject the filter screen frame for cleaning.

[0013] In the above technical solution, further, the length of the moving hole is greater than the sum of the width of the connecting block and the length of the supporting block, one side of the push plate is attached to the outer wall of the filter screen frame, a sealing gasket is attached to the connecting position of the water pump shell inlet end and outlet end and the external connecting pipe, and a sealing gasket is attached to the outer wall of the filter screen frame.

[0014] In the technical solution, a sealing gasket is attached to the connecting position of the water pump shell inlet end and outlet end and the external connecting pipe, and a sealing gasket is attached to the outer wall of the filter screen frame, which facilitates the connection and fixation of the water pump shell inlet end and outlet end with the connecting pipe, maintains the sealing of the inside of the connecting pipe, and maintains the tightness of the outer wall of the filter screen frame and the inner wall of the connecting pipe.

[0015] In the above technical solution, further, the gear is meshingly connected with the plurality of tooth blocks, and the two supporting blocks are respectively located at the top and bottom of the gear.

[0016] In the technical solution, the gear is meshingly connected with the plurality of tooth blocks, which facilitates the rotation of the gear to drive the two groups of tooth blocks to move outwardly or inwardly in opposite directions.

[0017] Further, the limiting assembly comprises a guide hole, the guide hole is arranged at the position corresponding to the connecting flange on the two sides of the connecting pipe, one side of the sliding plate is fixedly connected with a moving rod corresponding to one side of the guide hole, the outer wall of the two moving rods is fixedly connected with a clamping block, the two clamping blocks are embedded in one end of the limiting plate through a clamping groove, a guide groove is arranged on one side of the limiting plate, and a sliding groove is arranged on the inner wall of the guide groove.

[0018] Further, one side of the sliding plate is fixedly connected with a moving rod corresponding to one side of the guide hole, so that the outer wall of the moving rod moves along the inner wall of the guide hole when the sliding plate moves, thereby facilitating the adjustment of the position of the limiting plate.

[0019] Further, the outer end of the clamping block is located in the clamping groove, and the outer wall of the moving rod passes through the inner part of the guide hole.

[0020] Further, the outer end of the clamping block is located in the clamping groove, and the outer wall of the moving rod passes through the inner part of the guide hole.

[0021] Further, the locking assembly comprises a holding plate, one end of the holding plate is fixedly connected with one end of a rotating rod, the other end of the holding plate is slidably embedded with a positioning rod, a positioning groove is arranged at the center of the outer wall of the pressing plate, the other side of the sliding plate is fixedly connected with a jacking rod, and an embedded groove is arranged on the outer side of the two jacking rods close to the two sides of the pressing plate.

[0022] When the positioning rod is embedded in the positioning groove, the rotating position of the holding plate is limited, and the stability of the holding plate is maintained.

[0023] Further, one end of the positioning rod penetrates the supporting block and is embedded in the positioning groove, and the outer wall of the jacking rod is matched with the inner part of the embedded groove.

[0024] The outer wall of the jacking rod is matched with the inner part of the embedded groove, so that the position of the pressing plate is limited, the stability of the pressing plate is maintained, and the stability of the filter screen frame is ensured.

[0025] The beneficial effects of the present application are as follows:

[0026] 1. The novel hot water circulating shield pump and its protection equipment, through the filter screen frame, the water flow into the water pump and the water out of the water pump are filtered, impurities in the water are prevented from adhering to the impeller and the shell, blockage is avoided, the water flow is prevented from becoming small, and through counterclockwise rotation of the rotating rod, the two supporting blocks are conveniently moved in opposite directions to the outside, so that the supporting block drives the connecting block to move in the moving hole while driving the sliding plate to move to the outside of the water pump shell, when the gear and the tooth block are completely separated, the spring and the push plate are matched, the filter screen frame is conveniently popped out of the connecting pipe, and the filter screen frame is conveniently disassembled and cleaned.

[0027] 2. The novel hot water circulating shield pump and its protection equipment, through counterclockwise rotation of the rotating rod, the two supporting blocks are conveniently moved in opposite directions to the outside, so that the sliding plate drives the outer wall of the moving rod to move along the guide hole, which facilitates the moving rod to drive the limiting plate to separate from the connecting flange, and at the same time, through the sliding groove, the rotating limiting plate is conveniently rotated, so that the clamping block of the outer wall of the moving rod slides in the sliding groove to align with the clamping groove, the limiting plate is conveniently disassembled, the connecting pipe is pulled, the connecting pipe drives multiple moving rods to separate from the connecting flange, the connecting pipe is separated from the water pump shell, and the water pump shell is conveniently disassembled and overhauled by the staff.

[0028] 3. The novel hot water circulating shield pump and its protection equipment, when the handle is rotated clockwise, the rotating rod and the gear are matched, the supporting block drives the tooth block to move in opposite directions to the outside of the rotating rod, when the handle drives the positioning rod to align with the positioning groove on one side of the supporting block, the positioning rod is embedded in the positioning groove, the position of the handle and the supporting block is limited, at the same time, the supporting block drives the connecting block to move in the moving hole, the sliding plate drives the moving rod to move to the outside of the pressing plate, so that the sliding plate drives the top rod to be embedded in the embedding groove, the position of the pressing plate is locked and fixed, at the same time, the moving rod drives the limiting plate to restrict the connecting flange, the stability of the connecting pipe and the water pump shell is maintained, and the extrusion of the pressing plate on the filter screen frame is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of the present application;

[0030] Figure 2 is a structural schematic diagram of the connecting pipe of the present application;

[0031] Figure 3 is a schematic diagram of the placing cavity of the present application;

[0032] Figure 4 is a structural schematic diagram of the filter screen frame of the present application;

[0033] Figure 5is a structural schematic view of the holding plate of the present application;

[0034] Figure 6 is a sectional view of the connecting pipe of the present application;

[0035] Figure 7 is a structural schematic view of the moving rod of the present application;

[0036] Figure 8 is a structural schematic view of the connecting flange of the present application;

[0037] Figure 9 is a schematic view of the installation structure of the limiting plate of the present application;

[0038] Figure 10 is a sectional view of the water pump housing of the present application;

[0039] The marks in the figure represent:

[0040] 1, water pump housing; 101, motor; 102, impeller; 2, connecting flange; 3, connecting pipe; 4, placing cavity; 5, sliding plate; 6, moving rod; 7, clamping block; 8, clamping groove; 9, limiting plate; 10, guide groove; 11, sliding groove; 12, moving hole; 13, connecting block; 14, supporting block; 15, tooth block; 16, extrusion plate; 17, filter screen frame; 18, limiting block; 19, installation groove; 20, spring; 21, push plate; 22, rotating rod; 23, placing groove; 24, gear; 25, holding plate; 26, positioning rod; 27, positioning groove; 28, jacking rod; 29, embedded groove; 30, guide hole. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that the terms used herein are merely for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the dimensions of the various parts shown in the drawings are not drawn to scale. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification when appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It should be noted that like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0043] It should be noted that the terms "first", "second", and the like in the description and claims of the application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of such terms as "first" and "second" are arbitrary labels and are used for purposes of distinguishing between the elements being referred to, and therefore, it is to be understood that the "first" and "second" elements can be interchangeable and that the embodiments of the application can operate in other sequences than those described or illustrated herein. Moreover, the terms "first", "second", and the like are used merely to identify one of the elements being described and do not imply a particular order or sequence, unless otherwise specifically recited in the claims. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are used herein to mean either an open-ended process, such that other substances or elements not expressly recited can be included, or a specific recitation of listed elements to the exclusion of other elements of like type, unless otherwise specifically recited in the claims.

[0044] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the terms such as "front", "back", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom" are generally based on the orientation or positional relationships shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be understood as limiting the scope of protection of the present application; the terms "inner" and "outer" refer to the inner and outer relative to the outline of each component.

[0045] It should be noted that in this application, the terms "comprising", "including", or any other variant thereof, are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not expressly listed, or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0046] Embodiment 1:

[0047] Please refer to Figures 1-10 The embodiment provides a new hot water circulating shield pump and its protection equipment, which comprises a water pump shell 1, a motor 101 is installed at the top end of the water pump shell 1, and an impeller 102 is fixedly connected to the output shaft end of the motor 101, and connecting flanges 2 are fixedly connected to the outer walls of the water outlet end and the water inlet end of the water pump shell 1, and further comprising:

[0048] A connecting pipe 3 is fixedly connected between the water pump shell 1 and the external water pipe at both ends of the connecting pipe 3 through the connecting flanges 2;

[0049] A positioning and dismounting assembly is arranged at the center position of the inner wall of the connecting pipe 3, and the positioning and dismounting assembly is located at the center position between the two connecting flanges 2;

[0050] A limiting assembly is arranged on the outer side of the connecting flange 2, and the limiting assembly is located on both sides of the connecting pipe 3;

[0051] A locking assembly is arranged at the positions close to the inner center of the connecting pipe 3 on both sides, and the locking assembly is located at one end of the rotating rod 22.

[0052] The locking assembly is located at one end of the rotating rod 22, which facilitates workers to better hold the grip plate 25 to rotate the rotating rod 22, so as to rotate clockwise or counterclockwise according to the situation.

[0053] It can be seen from the embodiment that the positioning and dismounting assembly can install and limit the filter screen frame 17, the limiting assembly can limit and fix the connecting pipe 3 between the water pump shell 1 and the external pipe, and the locking assembly can limit and fix the filter screen frame 17 when installing the filter screen frame 17 and limit and fix the position of the connecting flange 2.

[0054] Embodiment 2:

[0055] The embodiment provides a novel hot water circulating shield pump and a protection device thereof, in addition to the technical scheme of the above embodiment, further having the following technical features: the positioning and dismounting assembly comprises a placing cavity 4, the placing cavity 4 is arranged in the connecting pipe 3, symmetrical sliding plates 5 are arranged in the placing cavity 4, a moving hole 12 is symmetrically arranged on one side of the outer wall of the connecting pipe 3, a connecting block 13 is fixedly connected to the outer wall of the sliding plate 5 and close to the inside of the moving hole 12, a supporting block 14 is fixedly connected to one side of the connecting block 13, a tooth block 15 is fixedly connected to the opposite side of the two supporting blocks 14 at equal intervals, an extrusion plate 16 is slidably embedded on the outer wall of the connecting pipe 3, a filter screen frame 17 is arranged at one end of the extrusion plate 16, limiting blocks 18 are fixedly connected to the inner wall of the connecting pipe 3 and close to the two sides of the filter screen frame 17, an installation groove 19 is arranged on the inner wall of the connecting pipe 3 and close to the outer wall of the filter screen frame 17, springs 20 are spot-welded on the inner wall of the installation groove 19, a push plate 21 is fixedly connected to one end of the two springs 20, a rotating rod 22 is rotatably embedded on one side of the middle part of the extrusion plate 16, a placing groove 23 is arranged on one side of the outer wall of the rotating rod 22, and a gear 24 is fixedly sleeved in the placing groove 23.

[0056] Due to the action of the filter screen frame 17, the water flowing into the water pump shell 1 and the water flowing out of the water pump shell 1 can be filtered, so that impurities in the water are prevented from adhering to the impeller and the inside of the shell, thereby preventing blockage and reducing the water flow. In addition, the position of the filter screen frame 17 can be limited by the limiting blocks 18, so that the stability of the filter screen frame 17 during use is maintained. Then, the rotating rod 22 is counterclockwise rotated, so that the rotating rod 22 drives the gear 24 to rotate. Since the gear 24 is engaged with the tooth block 15, the gear 24 drives the tooth block 15 to move, and then the tooth block 15 drives the two supporting blocks 14 to move outward in opposite directions. The supporting blocks 14 drive the connecting block 13 to move in the moving hole 12 and drive the sliding plate 5 to move outward of the water pump shell 1. The rotating rod 22 is continuously rotated. When the rotating rod 22 drives the gear 24 and the tooth block 15 to completely separate, the rotating rod 22 is pulled, so that the rotating rod 22 drives the extrusion plate 16 to move. Due to the reaction force of the spring 20, the spring 20 drives the push plate 21 to move, and then the push plate 21 conveniently pops out the filter screen frame 17 from the inside of the connecting pipe 3. In this way, the filter screen frame 17 is dismounted and cleaned, so that the filter screen is kept clean and the phenomenon of blockage of the filter screen is avoided.

[0057] It can be seen from the embodiment that one end of the two springs 20 is fixedly connected with the push plate 21. When the filter screen frame 17 is dismounted, the push plate 21 is conveniently popped out by the action force of the spring 20, so that the filter screen frame 17 is conveniently cleaned.

[0058] Embodiment 3:

[0059] The embodiment provides a new hot water circulating shield pump and a protection device thereof, in addition to the technical scheme of the above embodiment, and has the following technical features: the internal length of the moving hole 12 is greater than the sum of the width of the connecting block 13 and the length of the supporting block 14, one side of the push plate 21 is attached to the outer wall of the filter screen frame 17, the water pump shell 1 is attached with a sealing gasket at the connection position of the water inlet end and the water outlet end and the external connecting pipe, and the outer wall of the filter screen frame 17 is attached with a sealing gasket.

[0060] It can be seen that, in the embodiment, the water pump shell 1 is attached with a sealing gasket at the connection position of the water inlet end and the water outlet end and the external connecting pipe, and the outer wall of the filter screen frame 17 is attached with a sealing gasket, so that the sealing property of the connecting pipe 3 can be maintained when the water inlet end and the water outlet end of the water pump shell 1 are connected and fixed to the connecting pipe 3, and the tightness between the outer wall of the filter screen frame 17 and the inner wall of the connecting pipe 3 can be maintained.

[0061] Embodiment 4

[0062] The embodiment provides a new hot water circulating shield pump and a protection device thereof, in addition to the technical scheme of the above embodiment, and has the following technical features: the gear 24 is in meshing connection with the plurality of tooth blocks 15, and the two supporting blocks 14 are located at the top and the bottom of the gear 24.

[0063] It can be seen that, in the embodiment, the gear 24 is in meshing connection with the plurality of tooth blocks 15, so that the two groups of tooth blocks 15 can be driven to move outward or inward in opposite directions when the gear 24 rotates.

[0064] Embodiment 5

[0065] The embodiment provides a new hot water circulating shield pump and a protection device thereof, in addition to the technical scheme of the above embodiment, and has the following technical features: the limiting assembly comprises a guide hole 30, the guide hole 30 is arranged at the position corresponding to one side of the connecting flange 2 on the two sides of the connecting pipe 3, one side of the sliding plate 5 is fixedly connected with a moving rod 6 corresponding to one side of the guide hole 30, the outer wall of the two moving rods 6 is fixedly connected with a clamping block 7, the two clamping blocks 7 are embedded in one end of a limiting plate 9 through a clamping groove 8, one side of the limiting plate 9 is provided with a guide groove 10, and the inner wall of the guide groove 10 is provided with a sliding groove 11.

[0066] When the rotating rod 22 rotates counterclockwise, the rotating rod 22 drives the gear 24 to rotate, and the gear 24 drives the toothed block 15 to move because the gear 24 is engaged with the toothed block 15, and then the toothed block 15 drives the two supporting blocks 14 to move outward in opposite directions, the supporting blocks 14 drive the connecting block 13 to move in the moving hole 12 and drive the sliding plate 5 to move outward from the water pump shell 1, so that the sliding plate 5 drives the moving rod 6 to move along the guide hole 30, and then the moving rod 6 drives the limiting plate 9 to move, the limiting plate 9 is rotated, so that the clamping block 7 on the outer wall of the moving rod 6 moves along the inner wall of the sliding groove 11, when the clamping block 7 is aligned with the clamping groove 8, the limiting plate 9 is pulled, so that the clamping groove 8 slides out along the outer end of the clamping block 7, the limiting plate 9 is conveniently disassembled, the connecting pipe 3 is separated from the water pump shell 1, and the water pump shell 1 is conveniently disassembled and maintained by the staff.

[0067] It can be seen from the embodiment that the moving rod 6 is fixedly connected to one side of the sliding plate 5 corresponding to one side of the guide hole 30, so that the moving rod 6 is driven to move along the inner wall of the guide hole 30 when the sliding plate 5 moves, and the position of the limiting plate 9 is conveniently adjusted.

[0068] Embodiment 6:

[0069] The embodiment provides a new hot water circulating shield pump and a protection device thereof, in addition to the technical solutions of the above-mentioned embodiments, and has the following technical features: the outer end of the clamping block 7 is located in the inner part of the clamping groove 8, and the outer wall of the moving rod 6 passes through the inner part of the guide hole 30.

[0070] It can be seen from the embodiment that the outer end of the clamping block 7 is located in the inner part of the clamping groove 8, so that the limiting plate 9 can be sleeved on the outer ends of the plurality of moving rods 6 along the outer wall of the clamping block 7 through the clamping groove 8 on one side, the limiting plate 9 is rotated, so that the sliding groove 11 is deviated from the two clamping blocks 7, and then the position of the limiting plate 9 is limited, so that the connecting flange 2 is conveniently limited.

[0071] Embodiment 7:

[0072] The embodiment provides a new hot water circulating shield pump and a protection device thereof, in addition to the technical solutions of the above-mentioned embodiments, and has the following technical features: the locking assembly comprises a holding plate 25, one end of the holding plate 25 is fixedly connected to one end of the rotating rod 22, the other end of the holding plate 25 is slidably embedded with a positioning rod 26, a positioning groove 27 is formed in the center of the outer wall of the extrusion plate 16, a top rod 28 is fixedly connected to the other side of the sliding plate 5, and an embedded groove 29 is formed in the outer side of each of the two top rods 28 close to the two top rods 28.

[0073] Wherein, after the filter screen frame 17 is cleaned, the filter screen frame 17 is placed in the connecting cylinder, then the extrusion plate 16 is pushed into the connecting cylinder, so that the filter screen frame 17 is moved by the extrusion plate 16, at the same time, the two sides of the filter screen frame 17 are moved along the one side of the limiting block 18, the stability of the filter screen frame 17 is kept, the outer wall of the filter screen frame 17 is in contact with the one side of the push plate 21, so that the push plate 21 drives the spring 20 to be compressed, at this time, the extrusion plate 16 drives the rotating rod 22 to move, the pressing handle 25 is pressed, the stability of the rotating rod 22 is kept, when the gear 24 on the outer wall of the rotating rod 22 moves to be aligned with the tooth block 15, the connecting block 13 is pushed, the connecting block 13 drives the supporting block 14 to move, so that the supporting block 14 drives the tooth block 15 to be in contact with and engaged with the gear 24, then the pressing handle 25 is rotated, the pressing handle 25 drives the rotating rod 22 to rotate in a clockwise direction, so that the rotating rod 22 drives the gear 24 to rotate, the tooth block 15 is driven to move, so that the tooth block 15 drives the two supporting blocks 14 to move to the outside of the rotating rod 22 in opposite directions, then the supporting block 14 drives the connecting block 13 to move in the moving hole 12, the connecting block 13 drives the sliding plate 5 to slide in the placing cavity 4, at this time, the top rod 28 is aligned with the embedded groove 29, when the sliding plate 5 drives the top rod 28 to be embedded in the embedded groove 29, the position of the extrusion plate 16 is locked and fixed, so that the extrusion plate 16 extrudes and limits the filter screen frame 17, the other side of the sliding plate 5 drives the moving rod 6 to move in the guiding hole 30 to the inside of the placing cavity 4, so that the moving rod 6 drives the limiting plate 9 to limit the extrusion to the one side of the connecting flange 2, at this time, the pressing handle 25 drives the positioning rod 26 to be aligned with the positioning groove 27 on the one side of the supporting block 14, the positioning rod 26 is pulled, one end of the positioning rod 26 penetrates through the one side of the supporting block 14 and is embedded in the positioning groove 27, so that the position of the pressing handle 25 and the supporting block 14 is limited, so that the stability of the connecting pipe 3 connected with the water pump shell 1 is kept and the extrusion of the extrusion plate 16 to the filter screen frame 17 is ensured.

[0074] It can be seen from the embodiment that when the positioning rod 26 is embedded in the positioning groove 27, the rotating position of the pressing handle 25 is limited, and the stability of the pressing handle 25 is kept.

[0075] Embodiment 8:

[0076] The embodiment provides a novel hot water circulating shield pump and a protection device thereof, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features, one end of the positioning rod 26 penetrates through the supporting block 14 and is embedded in the positioning groove 27, the outer wall of the top rod 28 is fitted in the embedded groove 29.

[0077] It can be seen from the embodiment that the outer wall of the top rod 28 is fitted in the embedded groove 29, so that the position of the extrusion plate 16 is limited, the stability of the extrusion plate 16 is kept, and the stability of the filter screen frame 17 is ensured.

[0078] The embodiments of the present application are described above with reference to the accompanying drawings, and the embodiments and features in the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection of the present application.

Claims

1. A novel protection device for a hot water circulating shielded pump, characterized in that, The pump housing (1) includes a pump casing (1), a motor (101) is mounted on the top of the pump casing (1), an impeller (102) is fixedly connected to the output shaft end of the motor (101), and connecting flanges (2) are fixedly connected to the outer walls of the water outlet and water inlet ends of the pump casing (1). The connecting pipe (3) is fixedly connected to the two ends of the water pump housing (1) and the external water pipe through connecting flanges (2) on both sides; The positioning and disassembly assembly is located at the center of the inner wall of the connecting pipe (3) and at the center between the two connecting flanges (2). The positioning and disassembly assembly includes a placement cavity (4) located inside the connecting pipe (3). A sliding plate (5) is symmetrically slidably connected inside the placement cavity (4). A moving hole (12) is symmetrically opened on one side of the outer wall of the connecting pipe (3). A connecting block (13) is fixedly connected to the outer wall of the sliding plate (5) near the moving hole (12). A support block (14) is fixedly connected to one side of the connecting block (13). Two toothed blocks (15) are fixedly connected at equal intervals on opposite sides of the two support blocks (14). A compression plate (16) is slidably embedded in the outer wall of the connecting pipe (3). A filter screen frame (17) is placed at one end of the compression plate (16). Limiting blocks (18) are symmetrically fixedly connected on both sides of the inner wall of the connecting pipe (3) near the filter screen frame (17). An installation groove (19) is opened on the inner wall of the connecting pipe (3) near the outer wall of the filter screen frame (17). Springs (20) are symmetrically spot-welded on the inner wall of the installation groove (19). A push plate (21) is fixedly connected to one end of the two springs (20). A rotating rod (22) is rotatably embedded in the middle position on one side of the compression plate (16). A placement groove (23) is opened on one side of the outer wall of the rotating rod (22). A gear (24) is fixedly sleeved inside the placement groove (23). The limiting component is located on the outside of the connecting flange (2) and on both sides of the connecting pipe (3). The limiting component includes a guide hole (30). The guide hole (30) is opened on both sides of the connecting pipe (3) at the position corresponding to the side of the connecting flange (2). A moving rod (6) is fixedly connected to one side of the sliding plate (5) corresponding to the side of the guide hole (30). Two moving rods (6) are fixedly connected to the outer walls of the outer walls of the two moving rods (6). The two locking blocks (7) are respectively embedded in one end of the limiting plate (9) through the locking groove (8). A guide groove (10) is opened on one side of the limiting plate (9). A sliding groove (11) is opened on the inner wall of the guide groove (10). The locking assembly is located on both sides of the center of the connecting tube (3). The locking assembly is located at one end of the rotating rod (22). The locking assembly includes a grip plate (25). One end of the grip plate (25) is fixedly connected to one end of the rotating rod (22). The other end of the grip plate (25) is slidably embedded with a positioning rod (26). A positioning groove (27) is opened in the center of the outer wall of the extrusion plate (16). A top rod (28) is fixedly connected to the other side of the sliding plate (5). An embedding groove (29) is opened on both sides of the extrusion plate (16) near the outer side of the two top rods (28).

2. The novel hot water circulation shielded pump protection device according to claim 1, characterized in that, The internal length of the moving hole (12) is greater than the sum of the width of the connecting block (13) and the length of the support block (14). One side of the push plate (21) is attached to the outer wall of the filter screen frame (17). The water pump housing (1) has a sealing gasket bonded to the connection between the water inlet end and the water outlet end and the external pipe. The outer wall of the filter screen frame (17) is also bonded with a sealing gasket.

3. The novel hot water circulation shielded pump protection device according to claim 1, characterized in that, The gear (24) is meshed with multiple tooth blocks (15), and the two support blocks (14) are located at the top and bottom of the gear (24), respectively.

4. The novel hot water circulation shielded pump protection device according to claim 1, characterized in that, The outer end of the card block (7) is located inside the card slot (8), and the outer wall of the moving rod (6) passes through the guide hole (30).

5. A novel hot water circulation shielded pump protection device according to claim 1, characterized in that, One end of the positioning rod (26) passes through the support block (14) and is embedded in the positioning groove (27), and the outer wall of the top rod (28) fits into the inside of the embedding groove (29).

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