Lifting device for machine pump maintenance

Abstract

The utility model relates to the technical field of maintenance equipment, in particular to a lifting device for machine pump maintenance, and aims to solve the problem that the height and the rotation angle of a common workbench cannot be adjusted due to the fact that the common workbench is fixedly arranged. The electric telescopic rod is fixedly connected to the upper surface of the base and vertically arranged, the telescopic shaft is in sliding connection with the electric telescopic rod and driven by the electric telescopic rod to ascend and descend, and the bracket is installed at the upper end of the telescopic shaft and rotationally connected with the upper end of the telescopic shaft. The pump can be conveniently adjusted to a proper height, a worker can conveniently overhaul the pump, then the function of rotating the bracket is achieved through the fixing mechanism, when other positions of the pump are disassembled, the worker does not need to move and only needs to rotate the bracket through the fixing mechanism, and the practicability of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of maintenance equipment technology, and specifically to a lifting device for pump maintenance. Background Technology

[0002] A mechanical vacuum pump is a machine that creates a vacuum. It can expel or absorb air from a closed or semi-closed space to achieve a relative vacuum in a local space. Common types of vacuum pumps include reciprocating vacuum pumps, water ring pumps, molecular pumps, and rotary vane vacuum pumps. When a mechanical pump is damaged during use, it needs to be repaired in a timely manner to ensure the progress of the project.

[0003] After the pump is removed, it needs to be placed on a maintenance platform for easy inspection by staff. However, most workbenches are fixed and cannot be adjusted in height or rotation angle, making them very inconvenient for staff to operate. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, namely that the workbench is generally fixed and its height and rotation angle cannot be adjusted, this utility model provides a lifting device for pump maintenance.

[0005] This application discloses a lifting device for pump maintenance, which adopts the following technical solution:

[0006] A lifting device for pump maintenance includes a base, an electric telescopic rod fixedly connected to the upper surface of the base and arranged vertically, a telescopic shaft slidably connected to the electric telescopic rod and driven to rise and fall by the electric telescopic rod, and a bracket installed on the upper end of the telescopic shaft and rotatably connected to the upper end of the telescopic shaft.

[0007] By adopting the above technical solution, the electric telescopic rod drives the telescopic shaft to rise and fall, adjusting the height. The bracket is rotatably connected to the telescopic shaft, and the bracket is supported by the telescopic shaft, making it easy to adjust the angle.

[0008] Optionally, the upper end of the telescopic shaft is provided with a mounting groove, which is located at the upper edge of the telescopic shaft and is an annular groove.

[0009] The bracket includes a mounting seat fastened to the upper end of the telescopic shaft, a plurality of mounting rods fixedly connected to the circumference of the mounting seat and arranged at equal intervals, and a mounting ring fixedly connected to the ends of the plurality of mounting rods and concentric with the mounting seat.

[0010] Optionally, a support rod is installed on the mounting rod; a spring groove is provided at the upper end of the support rod, and a second spring is fixedly connected in the spring groove. The second spring is arranged vertically, and a limit shaft is fixedly connected at the upper end of the second spring. The limit shaft is slidably connected to the support rod in the spring groove.

[0011] By adopting the above technical solution, during operation, the pump is placed on the support, and the bottom surface of the pump presses against the limiting shaft, while the second spring provides adaptive support.

[0012] Optionally, a protective tube is fixedly connected to the telescopic shaft, and the protective tube is sleeved on the outer wall of the electric telescopic rod and slidably connected to the electric telescopic rod; when the bracket is connected to the upper end of the telescopic shaft, the mounting seat of the bracket is rotatably connected to the protective tube, and the upper end of the protective tube overlaps with the lower end of the mounting seat.

[0013] By adopting the above technical solution, the protective pipe protects the connection between the bracket and the telescopic shaft, which can not only provide auxiliary support for the bracket, but also effectively prevent the bracket from separating from the telescopic shaft.

[0014] Optionally, the telescopic shaft is provided with a fixing mechanism for restricting the rotation of the bracket; the bracket has multiple slots, which are arranged at equal intervals on the bracket;

[0015] The fixing mechanism includes a fixed shaft that is fixedly connected to the telescopic shaft and has a cavity inside, and a locking shaft that is slidably connected in the cavity of the fixed shaft and is inserted into a slot on the bracket.

[0016] By adopting the above technical solution, if it is necessary to check other positions, the clamp shaft can be moved away from the bracket to release the bracket's restriction. Then, the bracket can be rotated to adjust its angle. The clamp shaft can then be inserted into the corresponding slot on the bracket's surface to limit the bracket and prevent it from rotating arbitrarily.

[0017] Optionally, a sleeve shaft is fixedly connected to the end of the clip shaft away from the slot. The sleeve shaft is arranged in the cavity, and a base plate is fixedly connected to the cavity, dividing the cavity into two parts. A limit ring is fixedly connected to one end of the sleeve shaft, and the end of the sleeve shaft connected to the limit ring passes through the base plate.

[0018] A connecting rod is fixedly connected to the surface of the fixed shaft, and a handle is hinged to one end of the connecting rod; a groove is opened on the surface of the fixed shaft, the groove passes through the fixed shaft, and the groove is opened along the length direction of the fixed shaft; when the handle is installed on the fixed shaft, one end of the handle is connected to the connecting rod, the other end passes through the groove through the fixed shaft, and the handle passes through the limiting ring and is slidably connected with the groove.

[0019] By adopting the above technical solution, the handle is rotated via the hinge, causing the limit ring to move and simultaneously driving the sleeve shaft. The sleeve shaft then drives the clamp shaft to move away from the bracket, releasing the limit on the bracket. By rotating the bracket, the angle of the bracket can be adjusted, facilitating the position adjustment of the clamp shaft.

[0020] Optionally, a rotating wheel is fitted on the limiting ring, and the rotating wheel is installed on the side of the limiting ring away from the sleeve shaft. An arc-shaped groove is formed on the surface of the rotating wheel; when the handle passes through the limiting ring, the handle is in contact with the rotating wheel.

[0021] By adopting the above technical solution, the handle contacts the rotating wheel when it rotates, and the rotating wheel adjusts the position of the limiting ring and the handle by rotating, so as to prevent the limiting ring from getting stuck in the cavity.

[0022] Optionally, one end of the retaining shaft is fixedly connected to a first spring, the other end of the first spring is fixedly connected to the base plate, and the first spring is sleeved on the retaining shaft.

[0023] By adopting the above technical solution, the sleeve shaft drives the locking shaft to move away from the bracket, releasing the limit on the bracket. At the same time, it will squeeze the first spring to generate elastic force. Then, by rotating the bracket, the angle of the bracket can be adjusted. Then, by releasing the handle, the first spring drives the locking shaft to reset, so that the locking shaft is engaged in the corresponding slot opened on the surface of the bracket.

[0024] Optionally, a handle cover is provided on the surface of the handle, and the surface of the handle cover is provided with anti-slip texture.

[0025] By adopting the above technical solution, when workers are inspecting the pump, their hands will inevitably get oily. The grip and the anti-slip texture on the surface can increase the friction of the workers' hands and prevent slipping.

[0026] Optionally, an anti-slip pad is fixedly connected to the upper surface of the limiting shaft.

[0027] By adopting the above technical solution, the anti-slip pads protect the bottom surface of the pump.

[0028] The beneficial effects of this utility model are:

[0029] (1) Through the structural design of electric telescopic rod, fixing mechanism and mounting groove, the pump is placed on the bracket and then the bracket is raised and lowered by electric telescopic rod, which makes it easy to adjust the pump to a suitable height and facilitate maintenance by staff. Then, the fixing mechanism realizes the function of rotating the bracket. When disassembling other parts of the pump, the staff does not need to move it, but only needs to rotate the bracket by fixing mechanism, which further improves the practicality of the device.

[0030] (2) Through the structural design of the through groove, support rod and anti-slip pad, when the bottom of the pump needs to be disassembled, the pump is supported by the support rod and then passed through the through groove, which makes it convenient for staff to inspect the bottom of the pump without reversing the pump, thus further improving maintenance efficiency. Attached Figure Description

[0031] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of the lifting device used for pump maintenance in this embodiment;

[0033] Figure 2 This is a schematic diagram of the bracket in this embodiment;

[0034] Figure 3 for Figure 2 Schematic diagram of the structure of section A;

[0035] Figure 4 for Figure 2 Schematic diagram of the structure of section B;

[0036] Figure 5 This is a schematic diagram of the sleeve structure in this embodiment.

[0037] Explanation of reference numerals in the attached drawings: 1. Base; 2. Electric telescopic rod; 3. Protective tube; 4. Through groove; 5. Support rod; 6. Limiting shaft; 7. Fixing mechanism; 8. Telescopic shaft; 9. Mounting groove; 10. Bracket; 11. Fixing shaft; 12. Limiting ring; 13. Rotary wheel; 14. Slide groove; 15. Handle; 16. Cavity; 17. Connecting rod; 18. Base plate; 19. First spring; 20. Sleeve shaft; 21. Clamping shaft; 22. Spring groove; 23. Second spring; 24. Anti-slip pad; 25. Handle cover. Detailed Implementation

[0038] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] This utility model provides a lifting device for pump maintenance, referring to... Figure 1 The lifting device for pump maintenance includes a base 1, with a vertically arranged electric telescopic rod 2 fixedly connected to the upper surface of the base 1. A telescopic shaft 8 is slidably connected to the electric telescopic rod 2, and the electric telescopic rod 2 drives the telescopic shaft 8 to move up and down. A bracket 10 is installed on the upper end of the telescopic shaft 8, which supports the pump and is rotatably connected to the upper end of the telescopic shaft 8.

[0041] Reference Figure 2 , Figure 3 A mounting groove 9 is provided at the upper end of the telescopic shaft 8. The mounting groove 9 is located at the upper edge of the telescopic shaft 8 and is an annular groove. The bracket 10 includes a mounting seat that is fastened to the upper end of the telescopic shaft 8. The lower end of the mounting seat has a hole, allowing the mounting seat to be fastened into the mounting groove 9, connecting the mounting seat and the telescopic shaft 8 together. Multiple mounting rods are circumferentially fixedly connected to the mounting seat. The multiple mounting rods are fixedly connected to the mounting seat at equal intervals. In addition, a mounting ring is fixedly connected to the end of the mounting rod. The mounting ring is fixedly connected to the multiple mounting rods and is concentric with the mounting seat. Through grooves 4 are provided in the mounting seat, mounting rods, and mounting rings.

[0042] Reference Figure 3 , Figure 4 Support rods 5 are installed on the mounting rods, with one support rod 5 on each mounting rod. The support rod 5 is fixedly connected to the upper surface of the mounting rod, and a spring groove 22 is opened at the upper end of the support rod 5. A second spring 23 is fixedly connected in the spring groove 22. The second spring 23 is arranged vertically, and a limit shaft 6 is fixedly connected to the upper end of the second spring 23. The limit shaft 6 is slidably connected to the support rod 5 in the spring groove 22. An anti-slip pad 24 is fixedly connected to the upper surface of the limit shaft 6. During operation, the pump is placed on the support rod 5, and the bottom surface of the pump presses against the limit shaft 6. At the same time, the second spring 23 works together to allow the multiple support rods 5 to adapt and support the pump.

[0043] Reference Figure 2 , Figure 3 A protective tube 3 is fitted onto the telescopic shaft 8, and the protective tube 3 is fixedly connected to the telescopic shaft 8. The protective tube 3 is fitted onto the outer wall of the electric telescopic rod 2 and is slidably connected to the electric telescopic rod 2. When the bracket 10 is connected to the upper end of the telescopic shaft 8, the mounting seat of the bracket 10 is rotatably connected to the protective tube 3, and the upper end of the protective tube 3 overlaps with the lower end of the mounting seat to prevent the bracket 10 from separating from the telescopic shaft 8.

[0044] A fixing mechanism 7 is installed on the telescopic shaft 8. The fixing mechanism 7 includes a fixing shaft 11, which is fixedly connected to the outer wall of the protective tube 3. A cavity 16 is formed inside the fixing shaft 11. A base plate 18 is fixedly connected to the cavity 16, dividing the cavity 16 into two parts. A retaining shaft 21, which is slidably connected to the cavity 16, is installed inside the cavity 16. The retaining shaft 21 penetrates the protective tube 3. Multiple slots are formed on the side wall of the mounting base of the bracket 10, and the slots are evenly spaced on the mounting base. One end of the retaining shaft 21 is inserted into a slot and engages with the slot of the mounting base. A sleeve shaft 20 is fixedly connected to one end of the retaining shaft 21. The sleeve shaft 20 is arranged in the cavity 16, and the connection between the sleeve shaft 20 and the retaining shaft 21 is located at the end of the retaining shaft 21 away from the slot of the mounting base. The diameter of the sleeve shaft 20 is smaller than that of the retaining shaft 21. A limit ring 12 is fixedly connected to one end of the sleeve shaft 20. When the sleeve 20 is installed in the cavity 16, one end of the sleeve 20 connected to the limiting ring 12 passes through the base plate 18. A first spring 19 is fixedly connected to one end of the retaining shaft 21, and the other end of the first spring 19 is fixedly connected to the base plate 18, and the first spring 19 is sleeved on the sleeve 20. The sleeve 20 is slidably connected to the base plate 18. A rotating wheel 13 is sleeved on the limiting ring 12, and the rotating wheel 13 is installed on the side of the limiting ring 12 away from the sleeve 20. An arc-shaped groove is formed on the surface of the rotating wheel 13.

[0045] A connecting rod 17 is fixedly connected to the surface of the fixed shaft 11. The connecting rod 17 is L-shaped, and its long arm end is fixedly connected to the fixed shaft 11, while its short arm end is hinged to a handle 15. A groove 14 is formed on the surface of the fixed shaft 11, passing through the fixed shaft 11 and extending along its length. When the handle 15 is installed on the fixed shaft 11, one end of the handle 15 is connected to the connecting rod 17, and the other end passes through the groove 14, passing through a limiting ring 12 and slidingly connected to the groove 14. When the handle 15 passes through the limiting ring 12, it is in contact with the rotating wheel 13. When working, turn the handle 15 away from the telescopic shaft 8. The handle 15 slides along the slide groove 14. The handle 15 will drive the limiting ring 12 to move, and at the same time drive the sleeve shaft 20. The sleeve shaft 20 will drive the locking shaft 21 to move away from the bracket 10, so that the locking shaft 21 separates from the mounting seat slot on the bracket 10, releasing the locking shaft 21 from limiting the bracket 10. At the same time, it will squeeze the first spring 19 and make the first spring 19 generate elastic force. Then, rotate the bracket 10 to adjust the angle of the bracket 10. Then release the handle 15, and the first spring 19 will drive the locking shaft 21 to reset, so that the locking shaft 21 is locked into the corresponding slot on the mounting seat of the bracket 10, limiting the bracket 10 and preventing the bracket 10 from rotating at will.

[0046] Additionally, refer to Figure 5A handle sleeve 25 can be fitted onto the surface of the handle 15, and the surface of the handle sleeve 25 is provided with anti-slip texture. When the operator is inspecting the pump, their hands will inevitably get oily. The handle sleeve 25 and the anti-slip texture on the surface can increase the friction of the operator's hands and prevent slipping.

[0047] This application discloses a lifting device for pump maintenance. The working principle is as follows: the pump is placed on the support rod 5, and then the bottom surface of the pump is adapted by the second spring 23. Then, the electric telescopic rod 2 is activated to raise the bracket 10 to a suitable height for pump maintenance. If other positions need to be inspected, the handle 15 is rotated by the hinge, which causes the handle 15 to move the limiting ring 12 and simultaneously drive the sleeve shaft 20. The sleeve shaft 20 drives the locking shaft 21 to move away from the bracket 10, releasing the limitation on the bracket 10. At the same time, the first spring 19 is squeezed to generate elastic force. Then, the bracket 10 is rotated to adjust the angle of the bracket 10. Then, the handle 15 is released, and the first spring 19 drives the locking shaft 21 to reset, so that the locking shaft 21 is locked into the corresponding slot on the surface of the bracket 10, limiting the bracket 10 and preventing the bracket 10 from rotating arbitrarily.

[0048] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0049] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A lifting device for pump maintenance, characterized in that: It includes a base (1), an electric telescopic rod (2) fixedly connected to the upper surface of the base (1) and arranged vertically, a telescopic shaft (8) slidably connected to the electric telescopic rod (2) and driven to rise and fall by the electric telescopic rod (2), and a bracket (10) installed on the upper end of the telescopic shaft (8) and rotatably connected to the upper end of the telescopic shaft (8).

2. The lifting device for pump maintenance according to claim 1, characterized in that: The upper end of the telescopic shaft (8) is provided with a mounting groove (9), which is located at the upper edge of the telescopic shaft (8) and is an annular groove. The bracket (10) includes a mounting seat fastened to the upper end of the telescopic shaft (8), a plurality of mounting rods fixedly connected to the circumference of the mounting seat and arranged at equal intervals, and a mounting ring fixedly connected to the ends of the plurality of mounting rods and concentric with the mounting seat.

3. The lifting device for pump maintenance according to claim 2, characterized in that: A support rod (5) is installed on the mounting rod; a spring groove (22) is provided at the upper end of the support rod (5), and a second spring (23) is fixedly connected in the spring groove (22). The second spring (23) is arranged vertically, and a limit shaft (6) is fixedly connected at the upper end of the second spring (23). The limit shaft (6) is slidably connected to the support rod (5) in the spring groove (22).

4. The lifting device for pump maintenance according to claim 1, characterized in that: A protective tube (3) is fixedly connected to the telescopic shaft (8). The protective tube (3) is sleeved on the outer wall of the electric telescopic rod (2) and slidably connected to the electric telescopic rod (2). When the bracket (10) is connected to the upper end of the telescopic shaft (8), the mounting seat of the bracket (10) is rotatably connected to the protective tube (3), and the upper end of the protective tube (3) overlaps with the lower end of the mounting seat.

5. The lifting device for pump maintenance according to claim 1, characterized in that: The telescopic shaft (8) is provided with a fixing mechanism (7) for restricting the rotation of the bracket (10); the bracket (10) is provided with multiple slots, which are arranged at equal intervals on the bracket (10); The fixing mechanism (7) includes a fixed shaft (11) fixedly connected to the telescopic shaft (8) and having a cavity (16) inside, and a retaining shaft (21) slidably connected in the cavity (16) of the fixed shaft (11) and inserted into a slot on the bracket (10).

6. The lifting device for pump maintenance according to claim 5, characterized in that: The end of the retaining shaft (21) away from the slot is fixedly connected to a sleeve shaft (20), which is arranged in the cavity (16). A base plate (18) is fixedly connected in the cavity (16), which divides the cavity (16) into two parts. One end of the sleeve shaft (20) is fixedly connected to a limiting ring (12). The end of the sleeve shaft (20) connected to the limiting ring (12) passes through the base plate (18). A connecting rod (17) is fixedly connected to the surface of the fixed shaft (11), and a handle (15) is hinged to one end of the connecting rod (17); a sliding groove (14) is provided on the surface of the fixed shaft (11), the sliding groove (14) passes through the fixed shaft (11), and the sliding groove (14) is opened along the length direction of the fixed shaft (11); when the handle (15) is installed on the fixed shaft (11), one end of the handle (15) is connected to the connecting rod (17), and the other end passes through the fixed shaft (11) through the sliding groove (14), and the handle (15) passes through the limiting ring (12) and is slidably connected with the sliding groove (14).

7. The lifting device for pump maintenance according to claim 6, characterized in that: A rotating wheel (13) is fitted on the limiting ring (12). The rotating wheel (13) is installed on the side of the limiting ring (12) away from the sleeve shaft (20). An arc-shaped groove is opened on the surface of the rotating wheel (13). When the handle (15) passes through the limiting ring (12), the handle (15) fits against the rotating wheel (13).

8. The lifting device for pump maintenance according to claim 7, characterized in that: One end of the retaining shaft (21) is fixedly connected to a first spring (19), the other end of the first spring (19) is fixedly connected to the base plate (18), and the first spring (19) is sleeved on the retaining shaft (20).

9. The lifting device for pump maintenance according to claim 6, characterized in that: The surface of the handle (15) is covered with a handle sleeve (25), and the surface of the handle sleeve (25) is provided with anti-slip texture.

10. The lifting device for pump maintenance according to claim 3, characterized in that: An anti-slip pad (24) is fixedly connected to the upper surface of the limiting shaft (6).

Images