Storage device facilitating feeding of graphite nodules

By designing a graphite ball storage device including a servo motor, cylinder and limiting mechanism, the problems of low feeding efficiency and high production cost in the prior art are solved, and the automated feeding and optimized storage of graphite balls are realized.

CN222683712UActive Publication Date: 2025-03-28CHENZHOU LUTANG GRAPHITE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421229944.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-03-28
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

The existing graphite ball storage and loading devices have problems such as high labor intensity, low loading efficiency and high maintenance costs of robotic arms, and are especially suitable for small production workshops.

Method used

A storage device for easy loading of graphite balls is designed, including a mounting plate, a feeding mechanism, a feeding mechanism, a limiting mechanism and a storage mechanism. The servo motor drives the gears and connecting blocks to drive the baffle to deflect, realizing the automatic feeding of the graphite ball; the cylinder pushes the push plate upward, driving the graphite ball upward, and limits the position through the limit plate to ensure that the graphite ball is automatically pushed into the feeding coil.

Benefits of technology

The automatic loading of graphite balls is realized, the loading efficiency is improved, labor intensity and production costs are reduced, and the storage quality of graphite balls is optimized through temperature control components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222683712U_ABST
    Figure CN222683712U_ABST
Patent Text Reader

Abstract

The storage device comprises a mounting plate, a feeding mechanism is fixedly mounted on the top end face of the mounting plate, a feeding mechanism is fixedly mounted on the top end face of the mounting plate, and a limiting mechanism is fixedly mounted on the top end face of the feeding mechanism. By installing the servo motor, the first gear, the second gear and the installing piece are driven to rotate, the connecting block and the installing ring are driven to rotate, the connecting piece is driven to rotate, the connecting rod is driven to deflect, the baffle is pulled to deflect with the fixing pin as the circle center, and the baffle is not closed any more; the graphite nodules can move into the discharging pipe through the baffle and through holes formed in the mounting part, then the graphite nodules can be conveyed to a machining area through the discharging pipe, the graphite nodule feeding operation is completed, the feeding amount and speed can be autonomously controlled, the use scene of the device is improved, the device is simple in structure, the production cost is reduced, and the device is suitable for popularization and application. And the practicability of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of graphite balls, in particular to a storage device for graphite balls which is convenient for loading. Background Art

[0002] Graphite is an allotrope of carbon. It is a gray-black, opaque solid with stable chemical properties, corrosion resistance, and is not easy to react with acids, alkalis and other agents. Currently, graphite materials have been used in many fields. Graphite balls are spherical structures with a certain strength that are processed by crushing graphite raw materials, mixing, extrusion molding, drying and other processes. Molded graphite balls are used in the steelmaking industry. The range of carbonaceous materials used for carburizing is very wide, including artificial graphite, petroleum coke, metallurgical coke and natural graphite. Graphite used as a steelmaking carburizer is still one of the main uses of earthy graphite worldwide.

[0003] Most of the existing graphite ball storage and feeding devices place the graphite balls separately inside the box when in use. When feeding, the graphite balls are taken out and moved to the feeding device for feeding. The extra transfer process in the middle requires manual operation, which increases labor expenditure and reduces feeding efficiency. Moreover, the feeding is mostly done by manual picking. Although some places use robotic arms to grab and feed, the feeding efficiency can be guaranteed, but for small production workshops, the robotic arms need frequent maintenance and overhaul, and the production cost is high.

[0004] Therefore, it is necessary to provide a storage device for graphite balls that is easy to load to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a storage device for graphite balls which is convenient for loading.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a storage device for graphite balls that is convenient for loading, comprising a mounting plate, a feeding mechanism is fixedly mounted on the top surface of the mounting plate, a loading mechanism is fixedly mounted on the top surface of the mounting plate, a limiting mechanism is fixedly mounted on the top surface of the feeding mechanism, and a storage mechanism is fixedly mounted on the side of the feeding mechanism;

[0007] The feeding mechanism includes a mounting ring and a base plate, a fixing plate is fixedly mounted on the top surface of the mounting plate, a servo motor is fixedly mounted on the side of the fixing plate, a gear 1 is fixedly mounted on the side of the servo motor transmission rod, a limiting block is fixedly mounted on the side of the base plate, a sliding groove is fixedly provided on the side of the mounting ring, the inner wall of the sliding groove is slidably connected to the side of the limiting block, a connecting block is fixedly mounted on the side of the mounting ring, the side of the connecting block is fixedly connected to the side of the mounting piece, a connecting piece is fixedly mounted on the inner wall of the mounting ring, a connecting rod is hingedly mounted on the side of the connecting piece, a baffle is hingedly mounted on the side of the connecting rod, a through hole is fixedly opened on the side of the baffle, a fixing pin is rotatably mounted on the inner wall of the through hole, and the end face of the fixing pin is fixedly connected to the side of the base plate.

[0008] As a further description of the above technical solution:

[0009] A fixing piece is fixedly installed on the top surface of the mounting plate, a fixing piece is fixedly installed on the top surface of the fixing piece, a gear 2 is fixedly installed on the side surface of the mounting piece, the tooth surface of gear 2 is meshingly connected with the tooth surface of gear 1, a bearing sleeve is fixedly installed on the side surface of the mounting piece, a mounting disk is fixedly installed on the side surface of the bearing sleeve, and a discharge pipe is fixedly installed on the end surface of the mounting disk.

[0010] As a further description of the above technical solution:

[0011] The feeding mechanism includes a cylinder, the mounting plate is provided with through holes from top to bottom, the inner wall of the through hole is fixedly connected to the side of the cylinder, a push plate is fixedly installed on the top surface of the cylinder push rod, a fixing sleeve is fixedly installed on the top surface of the mounting plate, and a three-way pipe is fixedly installed on the inner wall of the fixing sleeve.

[0012] As a further description of the above technical solution:

[0013] The limiting mechanism includes a mounting sleeve, the inner wall of which is fixedly connected to the side of the tee pipe, the inner wall of which is fixedly provided with a groove, the inner wall of which is fixedly provided with a bearing seat, the inner wall of which is rotatably provided with a limiting plate through a pin, and a spring sheet is fixedly provided on the side of the limiting plate.

[0014] As a further description of the above technical solution:

[0015] The material storage mechanism includes a material storage component, a connecting pipe 1 is fixedly installed on the end face of the material storage component, the end face of the connecting pipe 1 is fixedly connected to the end face of the tee pipe, an upper cover is clamped and installed on the top face of the material storage component, a handle is fixedly installed on the top face of the upper cover, a fixing rod is fixedly installed on the side face of the material storage component, and the bottom end face of the fixing rod is fixedly connected to the top end face of the mounting plate.

[0016] As a further description of the above technical solution:

[0017] A connecting pipe 2 is fixedly installed on the top surface of the mounting sleeve, a bent pipe is fixedly installed on the top surface of the connecting pipe 2, a loading coil is fixedly installed on the end surface of the bent pipe, a connecting pipe 3 is fixedly installed on the end surface of the loading coil, and the end surface of the connecting pipe 3 is fixedly connected to the inner wall of the through hole fixedly opened on the side of the bottom plate.

[0018] As a further description of the above technical solution:

[0019] A supporting leg is fixedly mounted on the bottom end surface of the mounting plate, and an anti-skid pad is fixedly mounted on the bottom end surface of the supporting leg.

[0020] The utility model has the following beneficial effects:

[0021] 1. Compared with the prior art, the storage device for graphite balls is convenient for loading. By installing a servo motor, the gear one is driven to rotate, the gear two and the mounting part are driven to rotate, the connecting block and the mounting ring are driven to rotate, the connecting part is driven to rotate, the connecting rod is driven to deflect, and the baffle is pulled to deflect with the fixed pin as the center of the circle, so that the baffle is no longer closed. At this time, the graphite balls can be moved to the inside of the discharge pipe through the through holes opened inside the baffle and the mounting part, and then the graphite balls can be transmitted to the processing area through the discharge pipe to complete the graphite ball loading operation. The amount and speed of loading can be independently controlled, which improves the use scenario of the device. The device has a simple structure, reduces production costs, and improves the practicability of the device.

[0022] 2. Compared with the prior art, the storage device of the graphite balls is convenient for loading. When loading, the graphite balls pass through the inside of the connecting pipe one by gravity, and then move to the top surface of the push plate inside the three-way pipe. At this time, the cylinder is opened, and the cylinder pushes the push plate to move upward, driving the graphite balls to move upward. When moving, the graphite balls squeeze the limit plate to deflect. When the graphite balls pass over the limit plate, the limit plate pushes the limit plate to reset through the spring sheet, and limits the graphite balls to prevent the graphite balls from losing the support of the push plate and falling. The graphite balls are pushed into the connecting pipe two and the bent pipe by the cylinder, and spread over the loading coil. The graphite balls can be automatically pushed into the loading coil, thereby improving the degree of automation of the device.

[0023] 3. Compared with the prior art, the storage device for graphite balls is easy to load. When storing, hold the handle tightly to place the graphite balls into the storage component for storage. The inner wall of the storage component is provided with a temperature control component, which can monitor and control the internal temperature of the storage component in real time, so that the graphite balls are always in a temperature range suitable for storage, which is beneficial to the storage of graphite balls and improves the storage quality of the graphite balls by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a storage device for graphite balls that is convenient for loading, as proposed by the utility model;

[0025] Figure 2 This is a bottom view of the overall structure of a graphite ball storage device for easy loading proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of a feeding coil structure of a storage device for graphite balls that is convenient for feeding, as proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of a storage component of a graphite ball storage device for easy loading of graphite balls proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the servo motor structure of a graphite ball storage device for easy loading proposed by the utility model;

[0029] Figure 6 A schematic diagram of the bearing sleeve structure of a storage device for graphite balls that is convenient for loading is provided in the utility model;

[0030] Figure 7 A schematic diagram of a baffle structure of a graphite ball storage device for easy loading proposed by the utility model;

[0031] Figure 8 This is a schematic diagram of the cylinder structure of a storage device for graphite balls that is easy to load, as proposed by the utility model;

[0032] Fig. 9 The utility model provides a schematic diagram of the structure of a limit plate of a storage device for graphite balls that is convenient for loading.

[0033] Legend:

[0034] 1. Mounting plate; 2. Support leg; 3. Anti-skid pad; 4. Fixed plate; 5. Servo motor; 6. Gear 1; 7. Fixed piece; 8. Mounting plate; 9. Bearing sleeve; 10. Mounting piece; 11. Gear 2; 12. Connecting block; 13. Mounting ring; 14. Slide; 15. Connecting piece; 16. Connecting rod; 17. Fixed pin; 18. Baffle; 19. Limit block; 20. Bottom plate; 21. Cylinder; 22. Push plate; 23. Fixed sleeve; 24. Tee pipe; 25. Connecting pipe 1; 26. Storage assembly; 27. Upper cover; 28. Handle; 29. ​​Feeding coil; 30. Bend pipe; 31. Connecting pipe 2; 32. Mounting sleeve; 33. Bearing seat; 34. Limiting plate; 35. Spring leaf; 36. Discharge pipe; 37. Fixed rod; 38. Connecting pipe 3. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Reference Figure 1-Figure 9 The utility model provides a graphite ball storage device for easy loading, comprising a mounting plate 1, a feeding mechanism is fixedly mounted on the top surface of the mounting plate 1, a loading mechanism is fixedly mounted on the top surface of the mounting plate 1, a limiting mechanism is fixedly mounted on the top surface of the feeding mechanism, and a storage mechanism is fixedly mounted on the side of the feeding mechanism;

[0037] The feeding mechanism includes a mounting ring 13 and a bottom plate 20. A fixing plate 4 is fixedly mounted on the top surface of the mounting plate 1. A servo motor 5 is fixedly mounted on the side of the fixing plate 4. A gear 6 is fixedly mounted on the side of the driving rod of the servo motor 5. A limiting block 19 is fixedly mounted on the side of the bottom plate 20. A slide groove 14 is fixedly opened on the side of the mounting ring 13. The inner wall of the slide groove 14 is slidably connected to the side of the limiting block 19. A connecting block 12 is fixedly installed on the side of the mounting ring 13. The side of the connecting block 12 is fixedly connected to the side of the mounting member 10. A connecting member 15 is fixedly installed on the inner wall of the mounting ring 13. A connecting rod 16 is hingedly mounted on the side of the connecting member 15. A baffle 18 is hingedly mounted on the side of the connecting rod 16. A through hole is fixedly opened on the side of the baffle 18. A fixing pin 17 is rotatably mounted on the inner wall of the through hole. The end face of the fixing pin 17 is fixedly connected to the side of the base plate 20. By installing the servo motor 5, the gear 1 6 is driven to rotate, the gear 2 11 and the mounting member 10 are driven to rotate, the connecting block 12 and the mounting ring 13 are driven to rotate, the connecting member 15 is driven to rotate, the connecting rod is driven to deflect, and the baffle 18 is pulled to deflect with the fixing pin 17 as the center, so that the baffle 18 is no longer closed. At this time, the graphite balls can be moved to the inside of the discharge pipe 36 through the through holes opened inside the baffle 18 and the mounting member 10, and then the graphite balls can be transmitted to the processing area through the discharge pipe 36 to complete the graphite ball loading operation. The amount and speed of loading can be independently controlled, which improves the use scenario of the device. The device has a simple structure, reduces the production cost, and improves the practicality of the device.

[0038] A fixing part 7 is fixedly installed on the top surface of the mounting plate 1, a fixing part 10 is fixedly installed on the top surface of the fixing part 7, a gear 2 11 is fixedly installed on the side of the mounting part 10, the tooth surface of the gear 2 11 is meshed and connected with the tooth surface of the gear 1 6, a bearing sleeve 9 is fixedly installed on the side of the mounting part 10, a mounting plate 8 is fixedly installed on the side of the bearing sleeve 9, and a discharge pipe 36 is fixedly installed on the end surface of the mounting plate 8.

[0039] The feeding mechanism includes a cylinder 21, and a through hole is opened through the upper and lower parts of the mounting plate 1. The inner wall of the through hole is fixedly connected to the side of the cylinder 21. A push plate 22 is fixedly installed on the top surface of the push rod of the cylinder 21, and a fixed sleeve 23 is fixedly installed on the top surface of the mounting plate 1. A three-way pipe 24 is fixedly installed on the inner wall of the fixed sleeve 23. When feeding, the graphite ball passes through the inside of the connecting pipe 25 by gravity, and then moves to the top surface of the push plate 22 inside the three-way pipe 24. At this time, the cylinder 21 is opened, and the cylinder 21 pushes the push plate 22 The graphite balls move upward, driving the graphite balls upward. When moving, the graphite balls squeeze the limit plate 34 and deflect it. When the graphite balls pass over the limit plate 34, the limit plate 34 pushes the limit plate 34 to reset through the spring 35, limiting the graphite balls and preventing them from losing the support of the push plate 22 and falling. The graphite balls are pushed into the connecting pipe 2 31 and the bent pipe 30 through the cylinder 21, and are covered with the feeding coil 29. The graphite balls can be automatically pushed into the feeding coil 29, thereby improving the degree of automation of the device.

[0040] The limiting mechanism includes a mounting sleeve 32, the inner wall of which is fixedly connected to the side of the three-way pipe 24, a groove is fixedly opened on the inner wall of the mounting sleeve 32, a bearing seat 33 is fixedly installed on the inner wall of the groove, a limiting plate 34 is rotatably installed on the inner wall of the bearing seat 33 through a pin, and a spring 35 is fixedly installed on the side of the limiting plate 34.

[0041] The material storage mechanism includes a material storage component 26, a connecting pipe 25 is fixedly installed on the end face of the material storage component 26, the end face of the connecting pipe 25 is fixedly connected to the end face of the three-way pipe 24, an upper cover 27 is clamped and installed on the top face of the material storage component 26, a handle 28 is fixedly installed on the top face of the upper cover 27, a fixing rod 37 is fixedly installed on the side of the material storage component 26, and the bottom end face of the fixing rod 37 is fixedly connected to the top face of the mounting plate 1. When storing materials, hold the handle 28 to place the graphite balls into the material storage component 26 for storage. The inner wall of the material storage component 26 is provided with a temperature control component, which can monitor and control the internal temperature of the material storage component 26 in real time, so that the graphite balls are always in a temperature range suitable for storage, which is beneficial to the storage of the graphite balls and improves the storage quality of the graphite balls by the device.

[0042] A connecting pipe 2 31 is fixedly installed on the top surface of the mounting sleeve 32, a bent pipe 30 is fixedly installed on the top surface of the connecting pipe 2 31, a loading coil 29 is fixedly installed on the end surface of the bent pipe 30, a connecting pipe 3 38 is fixedly installed on the end surface of the loading coil 29, and the end surface of the connecting pipe 3 38 is fixedly connected to the inner wall of the through hole fixedly opened on the side of the bottom plate 20.

[0043] A supporting leg 2 is fixedly mounted on the bottom end surface of the mounting plate 1 , and an anti-skid pad 3 is fixedly mounted on the bottom end surface of the supporting leg 2 .

[0044] Working principle: When in use, hold the handle 28 tightly to place the graphite balls into the storage assembly 26 for storage. The inner wall of the storage assembly 26 is provided with a temperature control assembly, which can monitor and control the internal temperature of the storage assembly 26 in real time, so that the graphite balls are always in a temperature range suitable for storage, which is conducive to the storage of graphite balls;

[0045] When the device needs to load graphite balls, the graphite balls pass through the interior of the connecting pipe 1 25 by gravity, and then move to the top surface of the push plate 22 inside the tee pipe 24. At this time, the cylinder 21 is opened, and the cylinder 21 pushes the push plate 22 to move upward, driving the graphite balls to move upward. During the movement, the graphite balls squeeze the limit plate 34 to deflect. When the graphite balls pass over the limit plate 34, the limit plate 34 pushes the limit plate 34 to reset through the spring 35, and limits the graphite balls to prevent the graphite balls from losing the support of the push plate 22 and falling. In this way, the graphite balls are pushed into the connecting pipe 2 31 and the bent pipe 30, and are covered with the loading coil 29.

[0046] Further, turn on the servo motor 5, drive gear 1 6 to rotate, drive gear 2 11 to rotate, and then drive the mounting part 10 to rotate, and then drive the connecting block 12 and the mounting ring 13 to rotate, drive the connecting part 15 to rotate, drive the connecting rod to deflect, pull the baffle 18 to deflect with the fixing pin 17 as the center, so that the baffle 18 is no longer closed. At this time, the graphite balls can move to the inside of the discharge pipe 36 through the through holes opened inside the baffle 18 and the mounting part 10, and then the graphite balls can be transmitted to the processing area through the discharge pipe 36 to complete the graphite ball loading operation.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A storage device for graphite balls for easy loading, comprising a mounting plate (1), characterized in that: A feeding mechanism is fixedly mounted on the top surface of the mounting plate (1), a loading mechanism is fixedly mounted on the top surface of the mounting plate (1), a limiting mechanism is fixedly mounted on the top surface of the feeding mechanism, and a storage mechanism is fixedly mounted on the side surface of the feeding mechanism; The feeding mechanism comprises a mounting ring (13) and a bottom plate (20), a fixing plate (4) being fixedly mounted on the top surface of the mounting plate (1), a servo motor (5) being fixedly mounted on the side surface of the fixing plate (4), a gear 1 (6) being fixedly mounted on the side surface of a transmission rod of the servo motor (5), a limit block (19) being fixedly mounted on the side surface of the bottom plate (20), a slide groove (14) being fixedly opened on the side surface of the mounting ring (13), an inner wall of the slide groove (14) being slidably connected to the side surface of the limit block (19), and the mounting ring ( A connecting block (12) is fixedly installed on the side of the mounting member (13), the side of the connecting block (12) is fixedly connected to the side of the mounting member (10), a connecting member (15) is fixedly installed on the inner wall of the mounting ring (13), a connecting rod (16) is hingedly installed on the side of the connecting member (15), a baffle (18) is hingedly installed on the side of the connecting rod (16), a through hole is fixedly opened on the side of the baffle (18), a fixing pin (17) is rotatably installed on the inner wall of the through hole, and the end face of the fixing pin (17) is fixedly connected to the side of the bottom plate (20).

2. A graphite ball storage device for easy loading according to claim 1, characterized in that: A fixing member (7) is fixedly mounted on the top surface of the mounting plate (1), a fixing member (10) is fixedly mounted on the top surface of the fixing member (7), a gear 2 (11) is fixedly mounted on the side surface of the mounting member (10), a tooth surface of the gear 2 (11) is meshingly connected with a tooth surface of the gear 1 (6), a bearing sleeve (9) is fixedly mounted on the side surface of the mounting member (10), a mounting plate (8) is fixedly mounted on the side surface of the bearing sleeve (9), and a discharge pipe (36) is fixedly mounted on the end surface of the mounting plate (8).

3. A graphite ball storage device for easy loading according to claim 1, characterized in that: The feeding mechanism comprises a cylinder (21), the mounting plate (1) is provided with through holes extending therethrough from top to bottom, the inner wall of the through hole being fixedly connected to the side surface of the cylinder (21), a push plate (22) being fixedly mounted on the top surface of a push rod of the cylinder (21), a fixing sleeve (23) being fixedly mounted on the top surface of the mounting plate (1), and a three-way pipe (24) being fixedly mounted on the inner wall of the fixing sleeve (23).

4. A graphite ball storage device for easy loading according to claim 1, characterized in that: The limiting mechanism comprises a mounting sleeve (32), the inner wall of the mounting sleeve (32) being fixedly connected to the side of the three-way pipe (24), the inner wall of the mounting sleeve (32) being fixedly provided with a groove, the inner wall of the groove being fixedly provided with a bearing seat (33), the inner wall of the bearing seat (33) being rotatably provided with a limiting plate (34) via a pin, and a spring leaf (35) being fixedly provided on the side of the limiting plate (34).

5. A graphite ball storage device for easy loading according to claim 1, characterized in that: The material storage mechanism comprises a material storage assembly (26), a connecting pipe (25) being fixedly mounted on the end surface of the material storage assembly (26), the end surface of the connecting pipe (25) being fixedly connected to the end surface of the three-way pipe (24), an upper cover (27) being clamped and mounted on the top surface of the material storage assembly (26), a handle (28) being fixedly mounted on the top surface of the upper cover (27), a fixing rod (37) being fixedly mounted on the side surface of the material storage assembly (26), the bottom end surface of the fixing rod (37) being fixedly connected to the top surface of the mounting plate (1).

6. A graphite ball storage device for easy loading according to claim 4, characterized in that: A second connecting pipe (31) is fixedly mounted on the top surface of the mounting sleeve (32), a bent pipe (30) is fixedly mounted on the top surface of the second connecting pipe (31), a loading coil (29) is fixedly mounted on the end surface of the bent pipe (30), a third connecting pipe (38) is fixedly mounted on the end surface of the loading coil (29), and the end surface of the third connecting pipe (38) is fixedly connected to the inner wall of a through hole fixedly opened on the side surface of the bottom plate (20).

7. The storage device for graphite balls that is convenient for loading according to claim 1 is characterized in that: A support leg (2) is fixedly mounted on the bottom end surface of the mounting plate (1), and an anti-slip pad (3) is fixedly mounted on the bottom end surface of the supporting leg (2).