Shield pump with heat preservation structure

Abstract

The utility model discloses a shield pump with a heat preservation structure, which relates to the technical field of shield pump heat preservation and is characterized in that the shield pump comprises a shield pump body and a bottom plate, the shield pump body comprises a pump body and a pump head, a water inlet and a water outlet are respectively embedded in the left side surface and the upper side surface of the pump head, and a heat preservation mechanism is arranged on the surface of the pump head. The pump body and the bottom plate are fixedly connected through a mounting frame, a transfer mechanism is arranged on the lower surface of the bottom plate, and the heat preservation mechanism comprises two symmetrical mounting sleeve shells which are arranged on the surface of the pump head in a sleeving mode. According to the shield pump, cold fluid conveyed in the shield pump can be heated and preheated through the pump head, the situation that when the cold fluid enters the pump head and the pump body, a machine body is damaged due to crystallization is avoided, and a guarantee is provided for operation of the shield pump in cold fluid conveying and cold environments.

Description

Technical Field

[0001] This utility model relates to the field of shielded pump insulation technology, specifically a shielded pump with an insulation structure. Background Technology

[0002] A conventional centrifugal pump is driven by connecting the pump impeller shaft to the motor shaft via a coupling, causing the impeller and motor to rotate together. A canned motor pump, on the other hand, is a sealless pump in which both the pump and the drive motor are sealed within a pressure vessel filled with the pumped medium. This pressure vessel has only a static seal, and a set of wires provides the rotating magnetic field to drive the rotor.

[0003] Patent document CN201615066U discloses a heat-insulated shielded pump, belonging to the field of shielded pumps. It includes a motor and a pump body assembly. The pump body assembly is equipped with an outlet pipe and an inlet pipe. An insulation layer mechanism is connected to the outer wall of the pump body assembly, and an electric heating device for increasing the operating temperature of the pump body assembly is connected within the insulation layer structure. The insulation layer mechanism includes two semi-tubular insulation sleeves, which are hinged together and can be closed to fit over the outside of the pump body assembly. The electric heating device is located between the insulation sleeves and the outer wall of the pump body assembly. During operation, fluid enters through the pump body assembly for transport. To ensure stable operation and maintain the required operating temperature during transport, the operator closes the two insulation sleeves and simultaneously activates the electric heating device to directly heat and insulate the pump body assembly. The insulation sleeves effectively insulate the pump body assembly.

[0004] In actual use, the above solution involves installing an insulation sleeve around the pump body for insulation and antifreeze measures. However, this insulation method is too simple and can only provide some protection against the cold on the outside. When the cold fluid enters the pump head and pump body, it is still easy to cause damage to the pump body due to crystallization. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a shielded pump with a heat-insulating structure, which solves the problem of poor heat insulation and antifreeze effects of current shielded pumps.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a shielded pump with a heat insulation structure, comprising a shielded pump body and a base plate. The shielded pump body includes a pump body and a pump head. The left side surface and the upper side surface of the pump head are respectively provided with an inlet and an outlet. The surface of the pump head is provided with a heat insulation mechanism. The pump body and the base plate are fixedly connected by a mounting bracket. The lower surface of the base plate is provided with a transfer mechanism.

[0009] The heat preservation mechanism includes two symmetrical mounting sleeves fitted onto the surface of the pump head. A heating chamber is formed on the inner circumferential surface of each mounting sleeve, and a heating tube is installed inside the heating chamber. A mating plate is fixedly connected to both sides of the two mounting sleeves. Threaded holes are formed on the surface of the mating plates, and fixing bolts are threaded into the inner walls of the threaded holes. A pre-fixing mechanism is provided on the lower surface of the two mounting sleeves.

[0010] Preferably, the pre-fixing mechanism includes a first mounting seat and a second mounting seat, which are respectively fixedly installed on the lower surfaces of the two mounting housings. An insert plate is fixedly installed on the back of the first mounting seat, and a slot adapted to the insert plate is opened on the front of the second mounting seat. A limiting groove is opened on the left inner wall of the slot, and a limiting tooth block is provided inside the limiting groove. A tooth groove adapted to the limiting tooth block is opened on the surface of the insert plate.

[0011] Preferably, the left side of the second mounting base has a sliding opening that extends into the limiting groove. A pull rod that is fixedly connected to the limiting tooth block is slidably connected to the inner wall of the sliding opening. A spring is sleeved on the surface of one end of the pull rod inside the limiting groove. The two ends of the spring are fixedly connected to the inner wall of the limiting groove and the surface of the limiting tooth block, respectively.

[0012] Preferably, the surface of the limiting tooth block is provided with a limiting slider, and the inner wall of the limiting groove is provided with a limiting groove for the limiting slider to slide.

[0013] Preferably, the transfer mechanism includes an installation opening on the lower surface of the base plate and extending into the interior of the mounting frame. Two bidirectional threaded rods are rotatably connected to the inner walls of both sides of the mounting frame. Two symmetrical threaded blocks are threadedly connected to the surface of the bidirectional threaded rods. The lower surfaces of the two threaded blocks are rotatably connected to support rods via rotating shafts. The ends of the two support rods away from the threaded blocks are rotatably connected to mounting plates. Four universal wheels arranged in a rectangular array are installed on the lower surface of the mounting plates.

[0014] Preferably, the right side surface of the mounting bracket has a transmission opening, and an operating rod is rotatably connected to the inner wall of the transmission opening. The left end of the operating rod extends into the interior of the mounting bracket and is fixedly connected to the right end of the bidirectional threaded rod. The right end of the operating rod has a hexagonal groove, which is compatible with an external hexagonal wrench.

[0015] Preferably, guide sliders are provided on both sides of the mounting plate, and guide grooves for the guide sliders to slide are provided on both sides of the mounting opening.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a shielded pump with a heat-insulating structure, which has the following beneficial effects:

[0018] 1. When the device is in use and the shielded pump needs to be insulated and protected against freezing, the operation of the heating tube generates a certain temperature, which can heat up and preheat the cold fluid being transported inside the pump head. This prevents the cold fluid from crystallizing and causing damage to the pump body when it enters the pump head and pump body, thus ensuring the operation of the shielded pump in cold fluid transportation and cold environments.

[0019] 2. When it is necessary to move or adjust the installation and working position of the canned pump, rotate the operating lever to drive the double-threaded rod to rotate. The two threaded blocks drive the two support rods to move closer together through the rotation of the double-threaded rod. The movement of the two support rods pushes the mounting plate down. The movement of the mounting plate causes the casters to come into contact with the ground until the casters lift and support the base plate. At this time, the canned pump can be moved by the casters without the need for manual lifting, which provides convenience for its transportation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a front view structural diagram of the present invention;

[0022] Figure 3 This is a side sectional view of the pump head structure of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the two mounting sleeves of this utility model after they are separated;

[0024] Figure 5 This is a schematic diagram of the overhead section of the insert plate of this utility model;

[0025] Figure 6 This is a schematic diagram of the front section structure of the base plate of this utility model.

[0026] In the picture:

[0027] 1. Canned motor pump body; 101. Pump body; 102. Pump head;

[0028] 2. Base plate; 3. Inlet; 4. Outlet; 5. Mounting bracket; 6. Mounting sleeve; 7. Heating tube; 8. Connecting plate; 9. First mounting seat; 10. Second mounting seat; 11. Insert plate; 12. Limiting tooth block; 13. Pull rod; 14. Spring; 15. Limiting slider; 16. Two-way threaded rod; 17. Threaded block; 18. Support rod; 19. Mounting plate; 20. Caster wheel; 21. Operating lever; 22. Guide slider. Detailed Implementation

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] This utility model provides a technical solution:

[0031] Please see Figures 1-6 A shielded pump with a heat-insulating structure includes a shielded pump body 1 and a base plate 2. The shielded pump body 1 includes a pump body 101 and a pump head 102. The left side surface and the upper side surface of the pump head 102 are respectively provided with an inlet 3 and an outlet 4. The surface of the pump head 102 is provided with a heat-insulating mechanism. The pump body 101 and the base plate 2 are fixedly connected by a mounting bracket 5. The lower surface of the base plate 2 is provided with a transfer mechanism.

[0032] The insulation mechanism includes two symmetrical mounting sleeves 6 fitted onto the surface of the pump head 102. The left and upper surfaces of the two mounting sleeves 6 are respectively provided with assembly openings that are compatible with the inlet 3 and the outlet 4. The inner ring surface of the mounting sleeve 6 is provided with a heating chamber, and a heating tube 7 is installed inside the heating chamber. The two side surfaces of the two mounting sleeves 6 are fixedly connected with mating plates 8. The surface of the mating plates 8 is provided with threaded holes, and the inner wall of the threaded holes is threaded with fixing bolts. The lower surface of the two mounting sleeves 6 is provided with a pre-fixing mechanism.

[0033] Furthermore, the pre-fixing mechanism includes a first mounting base 9 and a second mounting base 10, which are respectively fixedly installed on the lower surfaces of the two mounting housings 6. An insert plate 11 is fixedly installed on the back of the first mounting base 9, and a slot adapted to the insert plate 11 is opened on the front of the second mounting base 10. A limiting groove is opened on the left inner wall of the slot, and a limiting tooth block 12 is set inside the limiting groove. A tooth groove adapted to the limiting tooth block 12 is opened on the surface of the insert plate 11. Through the setting of the insert plate 11 and the limiting tooth block 12, the two mounting housings 6 spliced ​​together can be pre-fixed, which facilitates the subsequent installation of fixing bolts.

[0034] The second mounting base 10 has a sliding opening on its left side that extends into the limiting groove. A pull rod 13, which is fixedly connected to the limiting tooth block 12, is slidably connected to the inner wall of the sliding opening. A spring 14 is sleeved on the surface of one end of the pull rod 13 inside the limiting groove. The two ends of the spring 14 are fixedly connected to the inner wall of the limiting groove and the surface of the limiting tooth block 12, respectively. With the pull rod 13 and the spring 14, the limiting tooth block 12 can be retracted into the limiting groove by the pull rod 13, and the limiting tooth block 12 can be pushed into the tooth groove of the insert plate 11 by the action of the spring 14.

[0035] The surface of the limiting tooth block 12 is provided with a limiting slider 15, and the inner wall of the limiting groove is provided with a limiting groove for the limiting slider 15 to slide. Under the limiting action of the limiting slider 15, the limiting tooth block 12 can smoothly slide in the limiting groove.

[0036] Furthermore, the transfer mechanism includes an installation opening on the lower surface of the base plate 2 and extending into the interior of the mounting frame 5. Two bidirectional threaded rods 16 are rotatably connected to the inner walls on both sides of the mounting frame 5. Two symmetrical threaded blocks 17 are threadedly connected to the surface of the bidirectional threaded rods 16. The lower surfaces of the two threaded blocks 17 are rotatably connected to support rods 18 via rotating shafts. The ends of the two support rods 18 away from the threaded blocks 17 are rotatably connected to mounting plates 19. Four universal wheels 20 arranged in a rectangular array are installed on the lower surface of the mounting plate 19. The universal wheels 20 facilitate the transfer of the canned pump.

[0037] A transmission opening is provided on the right side surface of the mounting bracket 5. An operating rod 21 is rotatably connected to the inner wall of the transmission opening. The left end of the operating rod 21 extends into the interior of the mounting bracket 5 and is fixedly connected to the right end of the bidirectional threaded rod 16. A hexagonal groove is provided on the right end of the operating rod 21, and the hexagonal groove is compatible with an external hexagonal wrench. By rotating the operating rod 21, the bidirectional threaded rod 16 can be driven to rotate synchronously. Through the setting of the hexagonal groove, an external hexagonal wrench can be used to rotate the operating rod 21, which is convenient for operation.

[0038] Guide sliders 22 are provided on both sides of the mounting plate 19. Guide grooves for sliding of guide sliders 22 are provided on both sides of the mounting opening. Under the guidance of guide sliders 22, the two threaded blocks 17 can drive the two support rods 18 to move closer or in opposite directions through the rotation of the bidirectional threaded rod 16.

[0039] In practical use, the working principle of this utility model is as follows:

[0040] Before use: symmetrically place the two mounting sleeves 6 onto the surface of the pump head 102, so that the insert plate 11 on the back of the first mounting base 9 is inserted into the slot on the surface of the second mounting base 10. During this process, the limiting tooth block 12 is pushed to move under the action of the spring 14 until the limiting tooth block 12 engages with the tooth groove of the insert plate 11, thus pre-fixing the two mounting sleeves 6 onto the surface of the pump head 102. Then, install the fixing bolts to securely install the two mounting sleeves 6 on the outside of the pump head 102, facilitating its assembly. When heat preservation and antifreeze measures are required for this shielded pump, the operation of the heating tube 7 generates a certain temperature, which can heat the cold fluid transported inside the pump head 102. Preheating prevents cold fluid from crystallizing and causing damage to the pump body when it enters the pump head 102 and pump body 101. When it is necessary to move or adjust the installation and working position of the canned pump, rotate the operating lever 21 to drive the bidirectional threaded rod 16 to rotate. Under the guidance of the guide slider 22, the two threaded blocks 17 drive the two support rods 18 to move closer together through the rotation of the bidirectional threaded rod 16. The moving closer movement of the two support rods 18 pushes the mounting plate 19 down. The downward movement of the mounting plate 19 causes the caster 20 to come into contact with the ground until the caster 20 lifts and supports the base plate 2. At this time, the canned pump can be moved and operated by the caster 20 without the need for manual lifting.

[0041] In summary, this shielded pump with an insulated structure achieves strong heat preservation and antifreeze effects as well as easy transportation through a series of innovative designs.

[0042] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A shielded pump with a heat-insulating structure, comprising a shielded pump body (1) and a base plate (2), characterized in that: The shielded pump body (1) includes a pump body (101) and a pump head (102). The left side surface and the upper side surface of the pump head (102) are respectively provided with an inlet (3) and an outlet (4). The surface of the pump head (102) is provided with a heat preservation mechanism. The pump body (101) and the base plate (2) are fixedly connected by a mounting bracket (5). The lower surface of the base plate (2) is provided with a transfer mechanism. The heat preservation mechanism includes two symmetrical mounting sleeves (6) fitted on the surface of the pump head (102). The inner ring surface of the mounting sleeve (6) is provided with a heating chamber, and a heating tube (7) is installed inside the heating chamber. Both sides of the two mounting sleeves (6) are fixedly connected with a mating plate (8). The surface of the mating plate (8) is provided with a threaded hole, and a fixing bolt is threaded to the inner wall of the threaded hole. The lower surface of the two mounting sleeves (6) is provided with a pre-fixing mechanism.

2. A shielded pump with a heat-insulating structure according to claim 1, characterized in that: The pre-fixing mechanism includes a first mounting base (9) and a second mounting base (10) respectively fixedly installed on the lower surfaces of two mounting sleeves (6). A plug plate (11) is fixedly installed on the back of the first mounting base (9). A slot adapted to the plug plate (11) is opened on the front of the second mounting base (10). A limiting groove is opened on the left inner wall of the slot. A limiting tooth block (12) is set inside the limiting groove. A tooth groove adapted to the limiting tooth block (12) is opened on the surface of the plug plate (11).

3. A shielded pump with a heat-insulating structure according to claim 2, characterized in that: The second mounting base (10) has a sliding opening on its left side that extends into the limiting groove. A pull rod (13) that is fixedly connected to the limiting tooth block (12) is slidably connected to the inner wall of the sliding opening. A spring (14) is sleeved on the surface of one end of the pull rod (13) located inside the limiting groove. The two ends of the spring (14) are fixedly connected to the inner wall of the limiting groove and the surface of the limiting tooth block (12), respectively.

4. A shielded pump with a heat-insulating structure according to claim 3, characterized in that: The surface of the limiting tooth block (12) is provided with a limiting slider (15), and the inner wall of the limiting groove is provided with a limiting groove for the limiting slider (15) to slide.

5. A shielded pump with a heat-insulating structure according to claim 1, characterized in that: The transfer mechanism includes an installation opening on the lower surface of the base plate (2) and extending into the interior of the mounting frame (5). The inner walls of both sides of the mounting frame (5) are rotatably connected to a bidirectional threaded rod (16). The surface of the bidirectional threaded rod (16) is threaded with two symmetrical threaded blocks (17). The lower surfaces of the two threaded blocks (17) are rotatably connected to a support rod (18) via a rotating shaft. The end of the two support rods (18) away from the threaded blocks (17) is rotatably connected to a mounting plate (19). The lower surface of the mounting plate (19) is equipped with four universal wheels (20) arranged in a rectangular array.

6. A shielded pump with a heat-insulating structure according to claim 5, characterized in that: The mounting bracket (5) has a transmission opening on its right side surface. An operating rod (21) is rotatably connected to the inner wall of the transmission opening. The left end of the operating rod (21) extends into the interior of the mounting bracket (5) and is fixedly connected to the right end of the bidirectional threaded rod (16). The right end of the operating rod (21) has a hexagonal groove, which is compatible with an external hexagonal wrench.

7. A shielded pump with a heat-insulating structure according to claim 5, characterized in that: The mounting plate (19) is provided with guide sliders (22) on both sides of the mounting plate (19), and guide grooves for the guide sliders (22) to slide are provided on both sides of the mounting opening.

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