A screw pump mounting shock-absorbing base

By using a crossbar structure and a multi-stage sleeve damping component design, the problems of lack of vibration damping and height adjustment in screw pump installation are solved, achieving precise adjustment and multi-directional impact absorption, thus improving the operational stability and safety of the screw pump.

CN224284000UActive Publication Date: 2026-05-26KNIROVA (HANGZHOU) IND EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KNIROVA (HANGZHOU) IND EQUIP CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-26

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Abstract

This utility model discloses a screw pump mounting shock-absorbing base, comprising: a base for providing a load-bearing foundation for the overall structure; a tray disposed on the base for mounting the screw pump body and capable of rising and falling with the structure to adapt to different installation heights; a shock absorber disposed above the base for absorbing the impact and vibration generated during the operation of the screw pump; a sliding top block slidably disposed on the base; multiple rod groups disposed between the tray and the sliding top block, the rod groups being composed of intersecting connecting rods for supporting the tray and guiding its rising and falling; rotating blocks disposed at the intersection corners of the rod groups for connecting adjacent connecting rods and achieving linkage adjustment; and a lead screw threadedly connected to the multiple rotating blocks for driving the rod groups to move the tray to achieve rising and falling adjustment.
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Description

Technical Field

[0001] This utility model relates to the technical field of screw pumps, specifically to a screw pump mounting shock-absorbing base. Background Technology

[0002] Screw pumps, as commonly used fluid transport equipment, are widely used in industries such as petroleum, chemical, and environmental protection. To ensure their normal operation and efficient output, they typically need to be installed on a stable and reliable support structure. However, existing screw pump installation structures are mostly based on rigid supports, lacking effective buffering capabilities for vibrations generated during pump operation. Long-term operation can easily lead to structural fatigue, bolt loosening, increased noise, and other problems, thus affecting the service life and operational stability of the screw pump.

[0003] Meanwhile, the installation height and angle of screw pumps often need to be flexibly adjusted under different installation site conditions or media conveying conditions. However, traditional structures generally lack convenient height adjustment mechanisms, and the adjustment process relies on manual disassembly or the addition of external padding, which is not only inefficient but also prone to causing equipment imbalance or damage due to improper operation. Although some structures attempt to introduce buffer devices such as springs to reduce the impact of vibration, they often suffer from problems such as simple structure, limited response direction, and insufficient coordination with the main load-bearing system, making it difficult to effectively absorb impacts from multiple directions. Especially under conditions of pump body movement or large load fluctuations, the vibration reduction effect is not obvious. Utility Model Content

[0004] The purpose of this invention is to provide a screw pump mounting shock-absorbing base to solve the problems mentioned in the background art, namely, the lack of an effective shock-absorbing structure and the lack of flexible height adjustment capability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw pump mounting shock-absorbing base, comprising: a base for providing a load-bearing foundation for the overall structure; a tray disposed on the base for mounting the screw pump body and capable of rising and falling with the structure to adapt to different installation heights; a shock absorber disposed above the base for absorbing the impact and vibration generated during the operation of the screw pump; a sliding top block slidably disposed on the base; multiple rod groups disposed between the tray and the sliding top block, the rod groups being composed of intersecting connecting rods for supporting the tray and guiding its rising and falling; rotating blocks disposed at the intersection corners of the rod groups for connecting adjacent connecting rods and achieving linkage adjustment; and a lead screw threadedly connected to the multiple rotating blocks for driving the rod groups to move the tray to achieve rising and falling adjustment.

[0006] Preferably, the damping component includes a damping base disposed on the base, a multi-stage sleeve slidably sleeved on the damping base, a snap-fit ​​rod disposed inside the sleeve, and an L-shaped snap-fit ​​block rotatably disposed on the damping base; an elastic element is disposed between the multi-stage sleeve and the rotating block for transmitting displacement and buffering vibration.

[0007] Preferably, a sliding member is provided between the elastic member and the rotating block to guide the compression direction of the elastic member and limit its lateral displacement.

[0008] Preferably, a shock-absorbing element is provided between the tray and the extension plate.

[0009] Preferably, the shock absorber includes: a fixing block disposed on the extension plate; a connecting rod disposed on the fixing block; a tray protrusion disposed on the tray; a knob threadedly connected to the tray protrusion; and a compression spring disposed between the knob and the connecting rod, the compression spring being threadedly connected to the knob and the connecting rod; the shock absorption function is achieved through the elastic force of the compression spring.

[0010] Preferably, a shock absorber is provided between the tray and the rod assembly.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Precise Lifting and Adjustment, Strong Structural Interconnection: Multiple symmetrically distributed, intersecting "<>" shaped lever structures, along with rotating blocks and lead screw adjustment mechanisms located at the intersection corners, enable stable lifting and lowering of the pallet. Rotating the lead screw adjusts the angle of the lever groups, thereby driving the pallet to achieve height adjustment. This effectively meets the precise adjustment requirements for the screw pump installation height under different working conditions, improving assembly flexibility and efficiency.

[0013] 2. Rapid shock absorption response and adaptability to multi-directional impact absorption: A multi-stage sleeve structure damping component is set under the rotating block, which, together with the elastic element and sliding component, can effectively absorb the vertical impact caused by lifting or foundation vibration during the operation of the screw pump; the structure of the sliding plate and sliding block further ensures the accurate force direction of the elastic element, avoids skew failure, and improves the stability and service life of the shock absorption system.

[0014] 3. Setting up a locking and reset mechanism to improve safety: The shock-absorbing structure incorporates an L-shaped locking block and a locking rod, which can automatically lock in place when the tray is raised, preventing the multi-stage sleeve from falling back unexpectedly and improving structural stability and operator safety during use; pressing the L-shaped locking block can also quickly release the mechanism, facilitating structural return and improving adjustment efficiency.

[0015] 4. Supports free switching between rigid and buffered support modes for the pallet: A sliding top block is set on the base. When rigid support is required for the pallet, the top block can be pushed in to abut against the bottom of the rod assembly to achieve structural reinforcement. When the buffering function needs to be activated, the top block can be moved out so that the rod assembly can directly act on the damping component, thereby meeting the switching requirements for structural rigidity or flexibility under different working conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of part A;

[0021] Figure 5 This is a schematic diagram of the overall shock-absorbing component structure of this utility model.

[0022] The components represented by each number in the attached diagram are listed below: base (100), tray (101), shock absorber (102), shock absorber base (102a), multi-stage sleeve (102b), snap-fit ​​rod (102c), L-shaped snap-fit ​​block (102d), elastic element (102e), sliding top block (103), multiple rod groups (104), rotating block (105), lead screw (106), sliding element (107), shock absorber (108), fixing block (108a), connecting rod (108b), tray protrusion (108c), knob (108d), compression spring (108e), and shock absorber (109). Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a screw pump mounting shock-absorbing base, including a base 100, a tray 101, a sliding top block 103, multiple rod groups 104, a rotating block 105, a lead screw 106, a sliding component 107, a shock-absorbing component 102, a shock-absorbing component 108, a shock-absorbing component 109, and other structures.

[0025] The base 100 serves as the load-bearing foundation for the overall structure, positioned below the equipment and fixed to the ground, providing excellent stability and load-bearing capacity. The tray 101 is positioned above the base 100 and is used to mount the screw pump body. It is supported below by multiple sets of rods, forming a lifting structure with the base 100.

[0026] The rod assembly includes multiple connecting rods arranged in a '<>' shape, symmetrically distributed on both sides of the tray 101. A rotating block 105 is provided at the intersection of each rod group. The rotating block 105 has threaded holes in opposite directions. A lead screw 106 is threaded through two rotating blocks 105 sequentially, with one end extending outside the structure for easy manual rotation. Rotating the lead screw 106 causes the two rotating blocks 105 to move relative to each other, changing the included angle of the connected rods and thus driving the tray 101 to rise and fall, achieving precise adjustment of the screw pump's installation height.

[0027] The sliding top block 103 is slidably disposed on the base 100 and located below the tray 101. When the installation requires rigid support for the screw pump, the sliding top block 103 is pushed into the lower end of the rod assembly so that it abuts against the bottom of the connecting rod. When the buffer and shock absorption function needs to be activated, the sliding top block 103 can be moved out so that the bottom of the connecting rod directly acts on the damping member 102 disposed below the rotating block 105.

[0028] The shock absorber 102 is disposed between the base 100 and the rotating block 105, and includes a shock absorber base 102a, a multi-stage sleeve 102b slidably sleeved on the shock absorber base 102a, a locking rod 102c disposed inside the sleeve, and an L-shaped locking block rotatably disposed on the shock absorber base 102a. An elastic element 102e (e.g., a spring) is disposed between the upper end of the multi-stage sleeve 102b and the rotating block 105, one end of which contacts the rotating block 105 through a sliding element 107. The sliding element 107 is used to guide the compression direction of the elastic element 102e to prevent it from deflecting and failing under lateral force. The sliding element 107 includes a sliding plate fixedly disposed on the upper end of the elastic element 102e, and a sliding locking block disposed at the bottom of the rotating block 105. The sliding block can slide along the surface of the sliding plate to limit the swaying or deflection of the elastic element 102e in the non-compression direction, effectively guide the elastic element 102e to compress and deform in the vertical direction, improve the damping efficiency, and prevent the structure from becoming unstable or worn under high-frequency vibration conditions.

[0029] When the tray 101 moves upward with the rotating block 105, the multi-stage sleeve 102b is stretched under the action of the elastic element 102e, providing a support structure for the elastic element 102e. This prevents the multi-stage sleeve 102b from falling back when the sliding top block 103 slides out. The end of the L-shaped locking block is locked with the locking rod 102c to prevent the sleeve from sliding down. When it is necessary to release the structure and allow it to fall back, pressing the L-shaped locking block can release the locking relationship, allowing the sleeve to fall back to its initial state and restore its initial stroke.

[0030] To further reduce the vibration generated during the operation of the screw pump, a shock absorber 108 is provided between the tray 101 and the extension plate to absorb the impact of the screw pump along the sliding direction of the extension plate (i.e., the first direction). The shock absorber 108 includes: a fixing block 108a disposed on the extension plate, with a connecting rod 108b on the fixing block 108a; a tray protrusion 108c on the tray 101, with a knob 108d threadedly connected to the protrusion; and a compression spring 108e disposed between the knob 108d and the connecting rod 108b, with both ends of the compression spring 108e threadedly fixed to the knob 108d and the connecting rod 108b respectively. When the extension plate is subjected to an impact load in the front-to-back direction, the compression spring 108e undergoes compression deformation, absorbing the impact kinetic energy, thereby providing buffer protection for the screw pump's operation. The compression degree of the compression spring 108e can be adjusted by rotating the knob 108d, thereby adjusting the spring's preload to meet the damping requirements under different load conditions and improve the versatility and stability of the structure.

[0031] Furthermore, a shock-absorbing structure in a second direction (perpendicular to the extension plate direction) is further provided between the tray 101 and the multiple symmetrically distributed rod assemblies. This structure includes a sliding track disposed between the tray 101 and the rod assemblies. The sliding track includes a sliding block and a sliding groove. The sliding block is disposed on the rod assembly, and the sliding groove is disposed at the bottom of the tray 101. Telescopic springs are symmetrically disposed on both sides of the sliding block. When the tray 101 is subjected to vibration or load impact in the second direction (lateral direction), the sliding block can move within the sliding groove, simultaneously compressing or stretching the telescopic springs, thereby mitigating the impact in that direction and achieving all-round shock absorption protection.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A screw pump mounting shock-absorbing base, characterized in that, Includes a base (100) for providing a load-bearing foundation for the overall structure; A tray (101) is set on the base (100) for mounting the screw pump body and can be raised and lowered with the structure to adapt to different installation heights; A shock absorber (102) is disposed above the base (100) to absorb the impact and vibration generated during the operation of the screw pump; The sliding top block (103) is slidably disposed on the base (100); Multiple rod groups (104) are disposed between the tray (101) and the sliding top block (103). The rod groups are composed of cross-connecting rods and are used to support the tray (101) and guide its lifting and lowering. Rotating blocks (105) are respectively set at the intersection corners of the rod group, used to connect adjacent connecting rods and realize linkage adjustment; A lead screw (106) is threaded to multiple rotating blocks (105) and is used to drive the rod assembly to move the tray (101) to achieve lifting and adjustment.

2. The screw pump mounting vibration damping base according to claim 1, characterized in that: The shock absorber (102) includes a shock absorber base (102a) disposed on a base (100), a multi-stage sleeve (102b) slidably sleeved on the shock absorber base (102a), a snap-fit ​​rod (102c) disposed inside the sleeve, and an L-shaped snap-fit ​​block (102d) rotatably disposed on the shock absorber base (102a). An elastic element (102e) is provided between the multi-stage sleeve (102b) and the rotating block (105) to transmit displacement and buffer vibration.

3. The screw pump mounting vibration damping base according to claim 2, characterized in that: A sliding member (107) is provided between the elastic member (102e) and the rotating block (105) to guide the compression direction of the elastic member (102e) and limit its lateral displacement.

4. The screw pump mounting vibration damping base according to claim 1, characterized in that: A shock absorber (108) is provided between the pallet (101) and the extension plate.

5. The screw pump mounting vibration damping base according to claim 4, characterized in that: The shock absorber (108) includes: a fixing block (108a) disposed on the extension plate; a connecting rod (108b) disposed on the fixing block (108a); a tray protrusion (108c) disposed on the tray (101); a knob (108d) threadedly connected to the tray protrusion (108c); and a compression spring (108e) disposed between the knob (108d) and the connecting rod (108b), the compression spring (108e) being threadedly connected to the knob (108d) and the connecting rod (108b); the shock absorption function is achieved by the elastic force of the compression spring (108e).

6. The screw pump mounting vibration damping base according to claim 1, characterized in that: A shock absorber (109) is provided between the tray (101) and the rod assembly.