Movable safe rising and falling support for maintenance of sewage pump

Abstract

The utility model discloses a movable safe rising and falling support for maintenance of a sewage pump. The movable safe rising and falling support comprises a supporting frame, a bearing platform, a moving mechanism and an auxiliary handle. The supporting frame is formed by welding square steel and comprises a vertical stand column and a supporting cross beam. The bearing platform is a stainless steel plate and is provided with a center hole for bearing the sewage pump; the moving mechanism adopts a floating roller (spring or hydraulic), drives the frame to float upwards to lift the upright post off the ground when not bearing, and is stably supported when bearing; the auxiliary handle can be rotationally stored and is convenient to move. The support solves the problems that manual dragging is strenuous, the safety risk is high, and a crane rope is prone to abrasion in the existing sewage pump maintenance process, the sewage pump is vertically and stably placed, maintenance convenience and safety are improved, and the support is suitable for the outdoor environment, stable in structure and flexible to move.

Description

Technical Field

[0001] This utility model relates to sewage pump maintenance, specifically to a mobile safety lifting support for sewage pump maintenance. Background Technology

[0002] In wastewater treatment systems, wastewater pumps are core equipment, undertaking the crucial task of transporting wastewater. Operating long-term in harsh environments characterized by humidity and strong corrosion, components such as impellers and seals are prone to performance degradation or malfunction due to clogging by impurities and corrosion from the medium, requiring regular maintenance.

[0003] Preliminary maintenance work: First, the sewage pump needs to be lifted from the bottom of the sewage pump house into the air using the traction of a crane. Next, specific maintenance personnel, relying on the crane's traction, will slowly lower the sewage pump at a 45-degree angle and place it on the ground at an angle. This 45-degree angle is for subsequent maintenance of the pump's base. Maintenance work will then proceed after placement.

[0004] (1) During the placement of the sewage pump, strong maintenance personnel are required to drag it. Because the sewage pump is large and heavy, if the maintenance personnel are not strong enough, they may be affected by the reaction force of the sewage pump and unable to hold it down. As planned, it cannot be tilted to the ground in one go, which is laborious and time-consuming.

[0005] (2) During maintenance, the crane tow rope is in working condition for a long time, which aggravates wear and increases maintenance costs. If the crane tow rope breaks, the sewage pump will fall directly to the ground, which may injure people and damage the sewage pump, thereby increasing the safety risk factor.

[0006] (3) When dragging the sewage pump, there is a risk of the rope breaking, the person dragging the pump letting go, causing the sewage pump to fall, resulting in serious safety accidents such as being struck by an object or falling from a height. Utility Model Content

[0007] This utility model provides a mobile safety lifting support for sewage pump maintenance, the mobile safety lifting support comprising:

[0008] The support frame is welded from multiple steel pipes and includes at least four vertical columns and support beams for connecting the vertical columns.

[0009] The load-bearing platform is fixedly installed on the top of the support frame, and the load-bearing platform is provided with a central hole for supporting the sewage pump;

[0010] The mobile mechanism consists of several floating rollers mounted on the support beam. The floating rollers are in contact with the ground. When no sewage pump is placed on the top of the mobile safety lifting bracket, the floating rollers drive the support frame to float up and cause the vertical column to leave the ground.

[0011] An auxiliary handle, mounted on the right side of the support frame, is used to push or move the safety landing gear.

[0012] Furthermore, both the vertical columns and the supporting beams are made of 40×40×4mm square steel.

[0013] Furthermore, the support frame is equipped with four vertical columns and two sets of upper and lower support beams;

[0014] The upper support beam consists of four square steel bars respectively installed at the front, back, left, and right of the support frame. The top surface of the upper support beam is flush with the top surface of the vertical column. The load-bearing platform is fully welded to the top surface of the upper support beam and the top surface of the vertical column.

[0015] The lower support beam consists of three square steel bars respectively set at the front, back and left of the support frame. A pair of load-bearing spring rollers are installed on the front and back square steel bars of the lower support beam.

[0016] The length of the square steel for the vertical column is 497mm, and the length of the square steel for the supporting beam is 420mm.

[0017] Furthermore, the load-bearing platform is made of 3-10mm thick stainless steel plate, with a center hole diameter of 200mm.

[0018] Furthermore, the auxiliary handle consists of a fixed crossbeam and a U-shaped handle. The fixed crossbeam is fixed to the front side of the support frame, and one side of the U-shaped handle is rotatably connected to the fixed crossbeam via a hinge.

[0019] The width of the loop handle should not exceed the length of the fixed crossbeam.

[0020] Furthermore, the floating roller is a hydraulic roller, which includes a fixed seat, an L-shaped connecting rod, a hydraulic rod, and a roller. The fixed seat is fixedly connected to the lower support beam. One end of the L-shaped connecting rod and the hydraulic rod are rotatably connected to the fixed seat, and the other end of the hydraulic rod is rotatably connected to the L-shaped connecting rod. The fixed seat, the L-shaped connecting rod, and the hydraulic rod form a parallel four-bar linkage mechanism, and the roller is rotatably mounted on one side of the L-shaped connecting rod.

[0021] Furthermore, the floating roller is a spring roller, which includes a fixed seat, a spring, an inverted U-shaped plate, and a roller. The fixed seat is fixedly connected to the lower support beam, the top of the spring is fixedly connected to the fixed seat, the bottom of the spring is fixed with an inverted U-shaped plate, and a roller is rotatably mounted on the bottom of the inverted U-shaped plate.

[0022] Furthermore, the rollers are made of rubber or Teflon.

[0023] The technical advantages of this utility model are as follows:

[0024] 1. Safe and reliable: The load-bearing platform allows the sewage pump to be placed vertically and stably, avoiding the risk of falling due to manual dragging and tilting; the floating rollers (spring / hydraulic type) provide stable support when under load, improving structural safety and reducing the risk of wear and breakage of the tractor rope.

[0025] 2. Easy to operate: The auxiliary handle can be rotated and stored, making it easy to move and adjust the position of the bracket; the open structure on all four sides (not closed) supports multi-directional maintenance operations, eliminating the need to tilt the sewage pump and reducing manpower consumption.

[0026] 3. Stable structure: The support frame adopts a full welding process with 40×40×4mm square steel, and the welded parts are deburred, resulting in high strength; the load-bearing platform is made of 3-10mm thick anti-corrosion stainless steel plate, which is suitable for outdoor environments and has strong durability.

[0027] 4. Flexible movement: When the floating rollers are not under load, they cause the frame to float up, lifting the vertical columns off the ground, making movement easy; the spring / hydraulic structure also has a shock absorption function, and it is convenient to switch between moving and stationary states. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0029] Figure 1 This is a perspective view of a mobile safety lifting support for sewage pump maintenance according to Embodiment 1 of this utility model.

[0030] Figure 2 A 3D view of the mobile safety landing gear to conceal the load-bearing platform;

[0031] Figure 3 for Figure 1 The right view;

[0032] Figure 4 for Figure 1 A bottom view;

[0033] Figure 5 for Figure 1 Front view;

[0034] Figure 6 This is a schematic diagram of a hydraulic roller in Example 2. Detailed Implementation

[0035] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0036] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0037] Example 1

[0038] like Figure 1-5 As shown in the figure, the mobile safety lifting support for sewage pump maintenance provided in this embodiment includes a core structure comprising a support frame 1, a load-bearing platform 2, a moving mechanism 3, and an auxiliary handle 4. The specific design of each part is as follows:

[0039] Supporting Frame 1

[0040] The support frame 1 adopts a welded steel structure, which is made of multiple square steel bars with a specification of 40×40×4mm, forming a stable three-dimensional frame structure. The support frame 1 consists of vertical columns 11 and support beams 12.

[0041] Vertical columns 11: Four columns are installed, each 497mm in length. They serve as the main vertical support for the frame, bearing the vertical load of the sewage pump. The upper and lower ends of the columns are welded to the upper and lower support beams, respectively, forming a rigid connection.

[0042] Support beam 12: consists of two sets of beams, upper and lower.

[0043] Upper support beam 121: Composed of four square steel bars (each 420mm in length) at the front, back, left, and right. Its top surface is flush with the top surface of the vertical column, forming a horizontal support plane for fixing the load-bearing platform.

[0044] The lower support beam 122 consists of three square steel bars (front, back, and left) (the front and back square steel bars are 420mm long, and the left square steel bar is of a length that matches the frame width). It is mainly used to install the roller assembly of the moving mechanism.

[0045] Structural features: The welding process adopts full welding treatment, and the weld height is not less than 4mm. After welding, all welded parts are deburred and ground to avoid sharp edges scratching operators or abrading cables.

[0046] Load-bearing platform 2

[0047] The load-bearing platform 2 is fixed to the top of the support frame 1, serving as the foundation for the sewage pump:

[0048] Material and thickness: Made of 3-10mm thick stainless steel plate (316L stainless steel is recommended, as it is suitable for outdoor humid and corrosive environments), with a brushed anti-scratch treatment on the surface.

[0049] Center hole 21: The hole diameter is 200mm, used to match the bottom flange or lifting lug structure of the sewage pump to achieve vertical positioning of the pump body. The edge of the hole is chamfered (R=5mm) to prevent stress concentration from causing the steel plate to crack.

[0050] Installation method: The load-bearing platform is fixedly connected to the top surface of the upper support beam and the top surface of the vertical column through a full welding process to form an integral rigid structure, ensuring no deformation when bearing load (maximum load up to 500kg).

[0051] Mobile mechanism 3

[0052] The moving mechanism 3 adopts a spring roller floating design to achieve automatic switching between the "moving state" and the "load-bearing state" of the support:

[0053] The spring roller assembly includes the following components:

[0054] Fixed base 32: welded to the front and rear square steel of the lower support beam 122, serving as the mounting base for the roller.

[0055] Compression spring 33: Made of manganese steel, with an elastic coefficient matched to the weight of the support frame and the sewage pump (pre-compression 10-15mm), and has shock absorption function.

[0056] Inverted U-shaped plate 34: connected to the fixed base by a spring, with rubber rollers 35 (100mm in diameter, with 2mm deep anti-slip texture on the surface) installed at the bottom.

[0057] Working principle: When not under load, the spring force causes the roller 35 to support the entire bracket, and the lower end of the vertical column 11 is 5-10mm off the ground. The bracket can be easily moved by pushing the auxiliary handle 4. When under load, after the sewage pump is placed on the load-bearing platform, gravity compresses the spring, and the lower end of the vertical column contacts the ground, forming a "four-legged support". The roller is lifted off the ground, ensuring that the bracket is stationary and stable.

[0058] Assist handle 4

[0059] The auxiliary handle 4 is mounted on the front side of the support frame for manually pushing or adjusting the position of the bracket. The auxiliary handle 4 includes the following components:

[0060] Fixed crossbeam 41: Made of 40×40×4mm square steel welded between the vertical columns on the front side of the support frame, with a length consistent with the width of the frame (approximately 420mm).

[0061] The U-shaped handle 42 is slightly narrower than the length of the fixed crossbeam (approximately 400mm) and is rotatably connected to the fixed crossbeam via a stainless steel hinge 43.

[0062] Operating logic: When movement is required, rotate the boom handle to the appropriate angle position to provide a fulcrum for force application; after the movement is completed, the handle can be rotated to fit the front of the frame to reduce space occupation.

[0063] Example 2

[0064] The only difference between this embodiment and Embodiment 1 is the type of floating roller in the moving mechanism 3; hydraulic rollers are used instead of spring rollers. For example... Figure 6 As shown, the hydraulic roller includes the following components:

[0065] Fixed base 32: welded and fixed to the lower support beam 122, with built-in hydraulic rod 37 for mounting the base.

[0066] L-shaped connecting rod 36: One end is rotatably connected to the fixed base, and the other end is equipped with a roller 35 (made of Teflon, with a friction coefficient ≤0.05).

[0067] Hydraulic rod 37: It adopts a single-acting hydraulic cylinder with a stroke of 20mm, and transmits the load through hydraulic oil.

[0068] Working principle: When not under load, the hydraulic rod is in an extended state, pushing the L-shaped connecting rod to make the roller 35 touch the ground, and the column lift off the ground. When under load, the weight of the sewage pump presses against the support, the hydraulic rod contracts under pressure, the L-shaped connecting rod swings down, the column touches the ground, and the roller lifts up.

[0069] Applicable scenarios: Suitable for frequent heavy-load movement scenarios (such as an average of ≥10 movements per day). The hydraulic system can provide more stable load transmission and shock absorption, but hydraulic oil leakage needs to be checked regularly.

[0070] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A mobile safety lifting support for sewage pump maintenance, characterized in that, The mobile safety landing gear includes: The support frame is welded from multiple steel pipes and includes at least four vertical columns and support beams for connecting the vertical columns. The load-bearing platform is fixedly installed on the top of the support frame, and the load-bearing platform is provided with a central hole for supporting the sewage pump; The mobile mechanism consists of several floating rollers mounted on the support beam. The floating rollers are in contact with the ground. When no sewage pump is placed on the top of the mobile safety lifting bracket, the floating rollers drive the support frame to float up and cause the vertical column to leave the ground. An auxiliary handle, mounted on the right side of the support frame, is used to push or move the safety landing gear.

2. The safety landing support according to claim 1, characterized in that, Both the vertical columns and the supporting beams are made of 40×40×4mm square steel.

3. The safety landing support according to claim 2, characterized in that, The support frame has four vertical columns and two sets of upper and lower support beams; The upper support beam consists of four square steel bars respectively installed at the front, back, left, and right of the support frame. The top surface of the upper support beam is flush with the top surface of the vertical column. The load-bearing platform is fully welded to the top surface of the upper support beam and the top surface of the vertical column. The lower support beam consists of three square steel bars respectively set at the front, back and left of the support frame. A pair of load-bearing spring rollers are installed on the front and back square steel bars of the lower support beam. The length of the square steel for the vertical column is 497mm, and the length of the square steel for the supporting beam is 420mm.

4. The safety landing support according to claim 1, characterized in that, The load-bearing platform is made of 3-10mm thick stainless steel plate, with a center hole diameter of 200mm.

5. The safety landing gear according to claim 3, characterized in that, The auxiliary handle consists of a fixed crossbeam and a U-shaped handle. The fixed crossbeam is fixed to the front side of the support frame, and one side of the U-shaped handle is rotatably connected to the fixed crossbeam via a hinge. The width of the loop handle should not exceed the length of the fixed crossbeam.

6. The safety landing support according to claim 3, characterized in that, The floating roller is a hydraulic roller, which includes a fixed seat, an L-shaped connecting rod, a hydraulic rod, and a roller. The fixed seat is fixedly connected to the lower support beam. One end of the L-shaped connecting rod and the hydraulic rod are rotatably connected to the fixed seat, and the other end of the hydraulic rod is rotatably connected to the L-shaped connecting rod. The fixed seat, the L-shaped connecting rod, and the hydraulic rod form a parallel four-bar linkage mechanism. The roller is rotatably mounted on one side of the L-shaped connecting rod.

7. The safety landing support according to claim 3, characterized in that, The floating roller is a spring roller, which includes a fixed base, a spring, an inverted U-shaped plate, and a roller. The fixed base is fixedly connected to the lower support beam, the top of the spring is fixedly connected to the fixed base, the bottom of the spring is fixed with an inverted U-shaped plate, and the roller is rotatably mounted on the bottom of the inverted U-shaped plate.

8. The safety landing support according to claim 6 or 7, characterized in that, The rollers are made of rubber or Teflon.

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