Dry-grinding-resistant shield pump convenient to install
By using the design of snap-fit blocks and stabilizing rods, combined with the precise adjustment of the adjustment mechanism, the problem of cumbersome installation process of dry wear resistant shielded pumps is solved, achieving efficient and stable installation results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-03
AI Technical Summary
The existing dry-wear resistant shielded pumps have a complicated installation process, require multiple tools, and are difficult to control with precision, resulting in low installation efficiency, easy vibration and noise, and affecting the stability and service life of the equipment.
The design incorporates a snap-fit block that engages with the mounting holes on the base, along with a stabilizing rod and a rubber rod, to achieve rapid positioning and stability of the canned pump body. The adjustment mechanism, through the cooperation of a screw and a rotating cover, enables precise adjustment and fixation of the position.
It significantly improves installation efficiency, reduces installation difficulty, enhances equipment stability and versatility, and reduces the risk of vibration and wear.
Smart Images

Figure CN224079323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry-wear resistant shielded pump technology, specifically a dry-wear resistant shielded pump that is easy to install. Background Technology
[0002] As a leak-free pump, the canned motor pump, with its fully enclosed structure, is widely used in chemical, pharmaceutical, food processing, and nuclear industries, and is especially suitable for conveying flammable, explosive, toxic, valuable, and radioactive liquid media. It fixes the motor rotor and pump impeller on the same shaft, and a shielding sleeve separates the motor rotor and stator, completely isolating the motor from the conveyed medium. This fundamentally solves the leakage problem of traditional pumps, greatly ensuring production safety and environmental friendliness.
[0003] According to the authorized patent "CN202510150207.5", a dry-wear resistant shielded pump includes a pump body, a first wear-resistant sealing assembly, and a second wear-resistant sealing assembly. A pump shaft is disposed inside the pump body. The first wear-resistant sealing assembly is located inside the pump body and installed at one end of the pump shaft. The second wear-resistant sealing assembly is located inside the pump body and installed at the other end of the pump shaft. By employing wear-resistant bushings, wear-resistant bearings, and thrust discs in the first and second wear-resistant sealing assemblies, the wear resistance of the pump body can be effectively improved, especially in working environments with high friction and wear. This results in a longer service life when conveying dry-wearing media and reduced maintenance frequency. The first and second wear-resistant sealing assemblies effectively prevent liquid leakage and ensure that the pressure inside the pump body is maintained.
[0004] The above-mentioned technical solution requires the use of multiple tools and involves complicated operation steps during installation. This not only consumes a lot of manpower and time, but also requires high technical skills from the installers, resulting in low installation efficiency. On the other hand, the precision control of bolt connections is difficult during installation, which can easily lead to installation errors. This can cause vibration and noise during the operation of the canned pump, affecting the stability and service life of the equipment.
[0005] Therefore, this utility model provides an easy-to-install dry-wear resistant shielded pump. Utility Model Content
[0006] To address the shortcomings of existing technologies, this invention provides an easy-to-install, dry-wear-resistant shielded pump to solve the aforementioned problems.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a dry-wear resistant shielded pump that is easy to install, including a base, a shielded pump body is provided on the top of the base, and an installation mechanism is provided between the shielded pump body and the base;
[0008] The mounting mechanism includes a snap-fit block with an insertion hole inside, a mounting hole inside the base, a movable tube fixedly connected to the outside of the base, a stabilizing rod movably connected inside the movable tube, a connecting plate fixedly connected to the outside of the stabilizing rod, a rubber rod movably connected inside the connecting plate, a limit cover fixedly connected to the outside of the rubber rod, and a friction hole inside the base.
[0009] Preferably, an adjustment mechanism is provided on the outer side of the base. The adjustment mechanism includes a fixed plate, a movable groove is provided inside the fixed plate, a movable block is slidably connected to the top of the fixed plate, a screw is threadedly connected inside the movable block, a rotating cover is fixedly connected to the top of the screw, an L-shaped plate is fixedly connected to the outer side of the movable block, a guide tube is fixedly connected to the outer side of the L-shaped plate, a snap-fit rod is movably connected inside the guide tube, a compression spring is fixedly connected to the snap-fit rod, and a positioning hole is provided in the side wall of the fixed plate.
[0010] Preferably, the snap-fit blocks are symmetrically distributed at the bottom of the shielded pump body, and the snap-fit blocks are located inside the mounting holes.
[0011] Preferably, the stabilizing rod is movably connected inside the base, and the stabilizing rod passes through the insertion hole inside the snap-fit block.
[0012] Preferably, the connecting plate is movably connected to the outside of the base, and the rubber rod is located inside the friction hole.
[0013] Preferably, the fixing plates are fixed and symmetrically distributed on the outside of the base, and the screw passes through the inside of the moving groove.
[0014] Preferably, the L-shaped plates are symmetrically distributed on the outside of the moving block, and the locking rod is movably connected to the inside of the conduit via a compression spring.
[0015] Preferably, the positioning holes are symmetrically distributed in the side wall of the fixing plate, and one end of the snap-fit rod is located inside the positioning hole.
[0016] Beneficial effects
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] (1) The easy-to-install dry-wear resistant shielded pump has a snap-fit block in the installation mechanism that matches the mounting hole of the base, which can quickly and initially position the shielded pump body. The stabilizing rod can pass through the through hole of the snap-fit block and connect with the base to further fix the shielded pump body. No complicated tools and cumbersome operation steps are required, which significantly improves the installation efficiency.
[0019] (2) The easy-to-install, dry-wear-resistant shielded pump features an adjustable mechanism with a fixed plate, moving block, screw, and rotating cover. Rotating the rotating cover drives the screw to rotate, allowing the moving block to move up and down within the moving slot, thereby adjusting the position of the L-shaped plate, guide tube, and locking rod. This flexible adjustment function adapts to different installation environments and usage requirements, enhancing the versatility of the shielded pump. Attached Figure Description
[0020] Figure 1 This is a perspective view of the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of this utility model when unfolded;
[0022] Figure 3 This is a schematic diagram of the outer structure of the adjustment mechanism of this utility model;
[0023] Figure 4 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.
[0024] In the diagram: 1. Base; 2. Shielded pump body; 3. Mounting mechanism; 31. Snap-fit block; 32. Through hole; 33. Mounting hole; 34. Movable tube; 35. Stabilizing rod; 36. Connecting plate; 37. Rubber rod; 38. Limiting cover; 39. Friction hole; 4. Adjustment mechanism; 41. Fixing plate; 42. Moving groove; 43. Moving block; 44. Screw; 45. Rotating cover; 46. L-shaped plate; 47. Guide tube; 48. Snap-fit rod; 49. Compression spring; 410. Positioning hole. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-4 A dry-wear resistant shielded pump that is easy to install includes a base 1, a shielded pump body 2 is provided on the top of the base 1, and an installation mechanism 3 is provided between the shielded pump body 2 and the base 1.
[0027] The mounting mechanism 3 includes a snap-fit block 31, with an insertion hole 32 inside the snap-fit block 31. The base 1 has an installation hole 33 inside. A movable tube 34 is fixedly connected to the outside of the base 1. A stabilizing rod 35 is movably connected inside the movable tube 34. A connecting plate 36 is fixedly connected to the outside of the stabilizing rod 35. A rubber rod 37 is movably connected inside the connecting plate 36. A limit cover 38 is fixedly connected to the outside of the rubber rod 37. A friction hole 39 is opened inside the base 1.
[0028] Furthermore: the snap-fit blocks 31 are symmetrically distributed at the bottom of the shielded pump body 2, and the snap-fit blocks 31 are located inside the mounting holes 33. The stabilizing rod 35 is movably connected to the inside of the base 1, and the stabilizing rod 35 passes through the insertion hole 32 inside the snap-fit blocks 31. The connecting plate 36 is movably connected to the outside of the base 1. The rubber rod 37 is located inside the friction hole 39.
[0029] It should be noted that the engagement of the snap-fit block 31 and the mounting hole 33 enables rapid positioning of the canned pump body 2 and the base 1, significantly shortening installation time and reducing installation difficulty compared to traditional bolt fixing methods. The interlocking locking mechanism of the stabilizing rod 35 and the through hole 32 ensures connection strength while facilitating disassembly and maintenance. The combination of the rubber rod 37 and the friction hole 39 effectively prevents the stabilizing rod 35 from loosening through frictional resistance, improving the stability of the equipment during operation and reducing the risk of component wear and connection failure caused by vibration.
[0030] As a further improvement of this utility model, an adjustment mechanism 4 is provided on the outer side of the base 1. The adjustment mechanism 4 includes a fixed plate 41. A moving groove 42 is provided inside the fixed plate 41. A moving block 43 is slidably connected to the top of the fixed plate 41. A screw 44 is threadedly connected inside the moving block 43. A rotating cover 45 is fixedly connected to the top of the screw 44. An L-shaped plate 46 is fixedly connected to the outer side of the moving block 43. A guide tube 47 is fixedly connected to the outer side of the L-shaped plate 46. A snap-fit rod 48 is movably connected inside the guide tube 47. A compression spring 49 is fixedly connected to the snap-fit rod 48. A positioning hole 410 is provided in the side wall of the fixed plate 41.
[0031] Furthermore: the fixing plate 41 is fixed and symmetrically distributed on the outside of the base 1, the screw 44 passes through the inside of the moving groove 42, the L-shaped plate 46 is symmetrically distributed on the outside of the moving block 43, the snap-fit rod 48 is movably connected to the inside of the guide tube 47 through the compression spring 49, the positioning hole 410 is symmetrically distributed in the side wall of the fixing plate 41, and one end of the snap-fit rod 48 is located inside the positioning hole 410.
[0032] Specifically, the threaded drive design of the screw 44 and the moving block 43 in the adjusting mechanism 4 enables precise fine-tuning of the canned pump's position. Rotating the rotating cover 45 easily controls the sliding of the moving block 43 within the moving groove 42, meeting diverse requirements for the canned pump's installation position under different working conditions. The locking rod 48, in conjunction with the positioning hole 410, achieves rapid positioning and locking under the action of the compression spring 49, ensuring stable and reliable adjustment and preventing displacement due to vibration during equipment operation.
[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0034] Working principle: When installing this easy-to-install dry-wear resistant canned motor pump, the initial connection between the pump body 2 and the base 1 is achieved first using the mounting mechanism 3. Since the locking blocks 31 are symmetrically distributed at the bottom of the pump body 2 and can fit into the mounting holes 33 inside the base 1, the pump body 2 is placed on the base 1 during installation, allowing the locking blocks 31 to be inserted into the mounting holes 33. Then, the stabilizing rod 35 is pushed. Because the stabilizing rod 35 is movably connected inside the base 1 and can pass through the insertion holes 32 inside the locking blocks 31, the stabilizing rod 35... 5. After passing through the insertion hole 32, the snap-fit block 31 can be stabilized in the mounting hole 33, thereby achieving the initial fixation of the shielded pump body 2 and the base 1. During this process, the connecting plate 36 is movably connected to the outside of the base 1, and the rubber rod 37 is located in the friction hole 39. When the stabilizing rod 35 moves, it drives the connecting plate 36 and the rubber rod 37 to move. The rubber rod 37 generates friction with the inner wall of the friction hole 39, increasing the resistance to the movement of the stabilizing rod 35 and preventing it from shifting due to vibration or other factors during use, further improving the stability of the connection.
[0035] After installation, if the position of the canned pump needs to be adjusted, the adjustment mechanism 4 is used. The fixing plate 41 is fixed and symmetrically distributed on the outside of the base 1. Rotating the rotating cover 45 drives the screw 44 to rotate in the moving groove 42. Since the screw 44 is threadedly connected to the moving block 43, the rotation of the screw 44 will cause the moving block 43 to slide along the moving groove 42 on the top of the fixing plate 41, thereby driving the L-shaped plate 46, the guide tube 47 and the locking rod 48 to move. When it moves to the appropriate position, the locking rod 48 pops out under the action of the compression spring 49. One end of the locking rod 48 is inserted into the positioning hole 410 on the side wall of the fixing plate 41, thereby fixing the position of the moving block 43 and completing the adjustment and fixing of the position of the canned pump.
[0036] During operation, the canned pump's resistance to dry wear comes into play, while the mounting mechanism 3 and adjusting mechanism 4 remain stable, ensuring that the canned pump body 2 is securely mounted on the base 1, enabling the canned pump to work reliably and efficiently.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dry-running, self-priming pump of the canned type, comprising a base (1), characterized in that: The top of the base (1) is provided with a shielding pump body (2), and a mounting mechanism (3) is arranged between the base (1) and the shielding pump body (2); The mounting mechanism (3) comprises a clamping block (31), a penetrating hole (32) is formed in the inside of the clamping block (31), a mounting hole (33) is formed in the inside of the base (1), a movable pipe (34) is fixedly connected to the outside of the base (1), a stabilizing rod (35) is movably connected to the inside of the movable pipe (34), an adapter plate (36) is fixedly connected to the outside of the stabilizing rod (35), a rubber rod (37) is movably connected to the inside of the adapter plate (36), a limiting cover (38) is fixedly connected to the outside of the rubber rod (37), and a friction hole (39) is formed in the inside of the base (1).
2. A dry-running, self-priming pump according to claim 1, wherein: The outside of the base (1) is provided with an adjusting mechanism (4), the adjusting mechanism (4) comprises a fixed plate (41), a moving groove (42) is formed in the inside of the fixed plate (41), a moving block (43) is slidably connected to the top of the fixed plate (41), a screw rod (44) is screwedly connected to the inside of the moving block (43), a rotating cover (45) is fixedly connected to the top of the screw rod (44), an L-shaped plate (46) is fixedly connected to the outside of the moving block (43), a catheter (47) is fixedly connected to the outside of the L-shaped plate (46), a clamping rod (48) is movably connected to the inside of the catheter (47), a compression spring (49) is fixedly connected to the clamping rod (48), and a positioning hole (410) is formed in the side wall of the fixed plate (41).
3. A dry-running, self-priming pump of claim 1, wherein: The clamping blocks (31) are symmetrically distributed at the bottom of the shielding pump body (2), and the clamping blocks (31) are located in the mounting holes (33).
4. A dry-running, self-priming pump of claim 1, wherein: The stabilizing rod (35) is movably connected to the inside of the base (1), and the stabilizing rod (35) transversely penetrates the penetrating hole (32) in the clamping block (31).
5. A dry-running, self-priming pump of claim 1, wherein: The adapter plate (36) is movably connected to the outside of the base (1), and the rubber rod (37) is located in the friction hole (39).
6. A dry-running, self-priming pump of claim 2, wherein: The fixed plate (41) is fixedly and symmetrically distributed on the outside of the base (1), and the screw rod (44) transversely penetrates the inside of the moving groove (42).
7. A dry-running, self-priming pump of claim 2, wherein: The L-shaped plates (46) are symmetrically distributed on the outside of the moving block (43), and the clamping rod (48) is movably connected to the inside of the catheter (47) through the compression spring (49).
8. A dry-wear resistant shielded pump that is easy to install according to claim 2, characterized in that: The positioning holes (410) are symmetrically distributed in the side wall of the fixed plate (41), and one end of the clamping rod (48) is located in the positioning hole (410).
Citation Information
Patent Citations
Dry-wear-resistant shield pump
CN119934071A