Safety lifting device for sewage treatment tank

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a safety lifting device for a sewage treatment tank, which comprises a lifting platform, a connecting plate fixedly connected to the bottom of the lifting platform, a lifting mechanism assembled and connected to the connecting plate, an assembling plate assembled and connected to the upper side of the lifting mechanism, and a translation vehicle assembled and connected to the assembling plate. The lifting mechanism comprises a plurality of lead screws, the upper sides of the lead screws are rotationally connected with the assembly plate, the lower ends of the lead screws are rotationally connected with the positioning plate, a motor is assembled and connected above the assembly plate, an output shaft of the motor is in transmission connection with the lead screws, gears are assembled and connected to the upper ends of the lead screws, the gears are in meshed connection, and the lead screws are in threaded connection with the lifting platform; movement of the lifting platform is controlled through the three lead screws, the lifting platform can stably ascend and descend, and the stability of the lifting platform is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a safety lifting device for a sewage treatment tank. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering. It is also increasingly entering the daily lives of ordinary people. The common sewage treatment facilities are sewage treatment pools, which need to be cleaned and repaired regularly. Cleaning and maintenance will use lifting devices;

[0003] However, in the prior art, a suspension structure is usually used to install the lifting device. However, during the lifting process of the lifting device, the lifting device will shake, which is not conducive to cleaning and maintenance by operators, and requires the operator to have good balance ability to operate. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a safe lifting device for a sewage treatment tank.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A safety lifting device for a sewage treatment tank comprises a lifting platform, a connecting plate is fixedly connected to the bottom of the lifting platform, a lifting mechanism is assembled and connected to the connecting plate, an assembly plate is assembled and connected to the upper side of the lifting mechanism, and a translation vehicle is assembled and connected to the assembly plate;

[0007] The lifting mechanism includes a plurality of lead screws, the upper sides of the plurality of lead screws are rotatably connected to the assembly plate, the lower ends of the plurality of lead screws are rotatably connected to the positioning plate, a motor is assembled and connected above the assembly plate, the motor output shaft is transmission-connected to the lead screw, the upper ends of the plurality of lead screws are assembled and connected with gears, the plurality of gears are meshingly connected, the lead screws are threadedly connected to the lifting platform, the positioning plate is L-shaped, the positioning plate is slidably connected to a fixed plate in an inverted L shape, and the fixed plate is fixedly assembled and connected to the pool body.

[0008] Preferably, a sliding plate is fixedly connected to the lower side of the translation vehicle, and the sliding plate is slidably connected to the pool body.

[0009] Preferably, the positioning plate is slidably connected to the pool body.

[0010] Preferably, a sleeve is provided between the lead screw and the lifting platform, the sleeve is spirally connected to the lead screw, and the sleeve is fixedly connected to the lifting platform.

[0011] Preferably, the number of the lead screws is three, and the number of the gears is three.

[0012] Preferably, the motor is drivingly connected to the middle lead screw.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model can make the lifting platform descend stably. At the same time, due to the self-locking property of the thread, when the motor of the lifting platform connected to the lead screw thread fails, the lifting platform will only descend when the rotation of the middle gear drives the two gears on both sides to rotate, thus ensuring safety.

[0015] 2. The utility model controls the movement of the lifting platform through three lead screws, which can make the lifting platform stably lifted and lowered, thereby improving the stability of the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a safety lifting device for a sewage treatment tank of the utility model;

[0018] Figure 2 This is a structural schematic diagram of an embodiment of a safety lifting device for a sewage treatment tank of the utility model;

[0019] Figure 3 This is a structural schematic diagram of the lifting mechanism and lifting platform of the utility model;

[0020] The main component symbols are described as follows:

[0021] Lifting platform 1, connecting plate 11, lifting mechanism 12, lead screw 121, positioning plate 122, motor 123, gear 124, fixing plate 125, sleeve 126, assembly plate 13, translation vehicle 2, sliding plate 201. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-3 As shown, a safety lifting device for a sewage treatment pool includes a lifting platform 1, a connecting plate 11 is fixedly connected to the bottom of the lifting platform 1, a lifting mechanism 12 is assembled and connected to the connecting plate 11, an assembly plate 13 is assembled and connected to the upper side of the lifting mechanism 12, and the assembly plate 13 is assembled and connected to the translation vehicle 2;

[0024] The lifting mechanism 12 includes a plurality of lead screws 121, the upper sides of the lead screws 121 are rotatably connected to the assembly plate 13, the lower ends of the lead screws 121 are rotatably connected to the positioning plate 122, a motor 123 is assembled and connected above the assembly plate 13, the output shaft of the motor 123 is transmission-connected to the lead screw 121, the upper ends of the lead screws 121 are all assembled and connected with gears 124, the gears 124 are meshingly connected, the lead screw 121 is threadedly connected to the lifting platform 1, the positioning plate 122 is L-shaped, the positioning plate 122 is slidably connected to a fixed plate 125 in an inverted L shape, and the fixed plate 125 is fixedly assembled and connected to the pool body.

[0025] With the technical solution of this embodiment, the lifting mechanism 12 is used to drive the lifting platform 1 to lift, and the operator cleans the sewage treatment pool in the lifting platform 1. It should be noted that the edge of the sewage treatment pool is mostly flat ground, so the usage scenario of the present invention is the flat ground at the edge of the sewage treatment pool. The weight of the translation vehicle 2 is large enough to fully support the lifting mechanism 12 for lifting. The lifting mechanism 12 is threadedly connected to the lead screw 121. Since the thread has a locking property, even when the motor 123 fails, the lifting mechanism 12 will avoid a sharp drop on the lead screw 121, thereby ensuring the safety of the operator. The motor 123 drives the lead screw 121 to rotate, and the lead screw 121 is locked. The rod 121 rotates, and the gear 124 ensures that the rotation speed of the lead screw 121 is the same. The lifting platform 1 moves up and down on the lead screw 121. Since there are more than one lead screws 121, the lifting platform 1 will only move when the rotation speed of the lead screws 121 is the same, so the lifting platform 1 will not drop sharply. Multiple lead screws 121 are threadedly connected to the lifting platform 1, and the stability of the lifting platform 1 is also guaranteed. The lead screws 121 are connected by gears 124 to ensure that the rotation speed of the lead screw 124 is the same. The translation vehicle 2 can move, driving the lifting platform 1 and the lifting mechanism 12 to move, and the fixed plate 125 can prevent the lifting mechanism 12 from moving to the side of the sewage pool.

[0026] Reference Figure 1-2 : A sliding plate 201 is fixedly connected to the lower side of the translation vehicle 2, and the sliding plate 201 is slidably connected to the pool body.

[0027] In this embodiment, the sliding plate 201 is in contact with the pool body, and the sliding plate 201 can play a positioning role when the lifting mechanism is installed.

[0028] Reference Figure 1-2 : The positioning plate 122 is slidably connected to the pool body.

[0029] In this embodiment, the positioning plate 122 is in contact with the pool body, and the positioning plate 122 can transfer the force transmitted by the lifting platform 1 to the pool body, thereby maintaining the stability of the lifting platform 1.

[0030] Reference Figure 2: A sleeve 126 is provided between the lead screw 121 and the lifting platform 1 , the sleeve 126 is spirally connected to the lead screw 121 , and the sleeve 126 is fixedly connected to the lifting platform 1 .

[0031] In this embodiment, the sleeve 126 can increase the contact area between the sleeve 126 and the lead screw 121 relative to the lifting platform 1, thereby improving the stability of the lifting platform 1 during lifting.

[0032] Reference Figure 2-3 : The number of the lead screws 121 is three, and the number of the gears 124 is three.

[0033] Reference Figure 3 : The motor 123 is transmission connected with the middle lead screw 121.

[0034] In this embodiment, the motor 123 drives the screw 121 to rotate. When the screw 121 rotates, the gears assembled and connected to the screw 124 rotate at the same time. The three gears 124 have the same rotation speed. The two gears 124 on both sides rotate in opposite directions to the middle gear 124. The spiral direction of the screws 124 on both sides is opposite to the rotation direction of the middle screw 124. Therefore, when the motor 123 rotates, the lifting platform 1 can move up and down.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A safety lifting device for a sewage treatment tank, characterized in that: The invention comprises a lifting platform (1), wherein a connecting plate (11) is fixedly connected to the bottom of the lifting platform (1), the connecting plate (11) is assembled and connected to a lifting mechanism (12), the upper side of the lifting mechanism (12) is assembled and connected to an assembly plate (13), and the assembly plate (13) is assembled and connected to a translation vehicle (2); The lifting mechanism (12) comprises a plurality of lead screws (121), the upper sides of the plurality of lead screws (121) are rotatably connected to the assembly plate (13), the lower ends of the plurality of lead screws (121) are rotatably connected to the positioning plate (122), a motor (123) is assembled and connected above the assembly plate (13), the output shaft of the motor (123) is transmission-connected to the lead screw (121), the upper ends of the plurality of lead screws (121) are assembled and connected to gears (124), the gears (124) are meshingly connected, the lead screw (121) is threadedly connected to the lifting platform (1), the positioning plate (122) is L-shaped, the positioning plate (122) is slidably connected to a fixing plate (125) in the shape of an inverted L, and the fixing plate (125) is fixedly assembled and connected to the pool body.

2. A safety lifting device for a sewage treatment tank according to claim 1, characterized in that: A sliding plate (201) is fixedly connected to the lower side of the translation vehicle (2), and the sliding plate (201) is slidably connected to the pool body.

3. A safety lifting device for a sewage treatment tank according to claim 1, characterized in that: The positioning plate (122) is slidably connected to the pool body.

4. A safety lifting device for a sewage treatment tank according to claim 1, characterized in that: A sleeve (126) is provided between the lead screw (121) and the lifting platform (1); the sleeve (126) is spirally connected to the lead screw (121); and the sleeve (126) is fixedly connected to the lifting platform (1).

5. A safety lifting device for a sewage treatment tank according to claim 4, characterized in that: The number of the lead screws (121) is three, and the number of the gears (124) is three.

6. A safety lifting device for a sewage treatment tank according to claim 5, characterized in that: The motor (123) is drivingly connected to the middle lead screw (121).

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