Movable nitrogen charging equipment

Abstract

The utility model discloses movable nitrogen charging equipment, which belongs to the technical field of nitrogen charging equipment and comprises a shell, an alarm is mounted above the shell, a gas sensor is mounted in the shell, the shell is fixed on a bottom plate through bolts, and a fixing plate and a nitrogen charging device are fixed on the bottom plate. According to the movable nitrogen charging equipment, the threaded driving structure and the arc-shaped covers are arranged, the threaded rod can be rotated through the handle, and due to the fact that threads on the two sides of the threaded rod are oppositely arranged, the threaded rod drives the two threaded seats to move close to each other, the two arc-shaped covers are close to each other and closed, and the arc-shaped covers can protect the nitrogen charging head; and the arc-shaped cover is matched with the shell to protect the nitrogen tank and the nitrogen charging device, and then the arc-shaped cover can drive the push rod to extrude the arc-shaped strip to open the through opening, so that the through opening keeps the communication between the shell and the arc-shaped cover, and the subsequent air tightness detection on the nitrogen charging head is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of nitrogen filling equipment, in particular to a mobile nitrogen filling equipment. Background Art

[0002] In the process of grain storage, insect pests and deterioration are the main problems affecting grain storage. Anaerobic insecticide by filling with nitrogen is a more environmentally friendly way of insecticide. It can also inhibit the respiration of grain and ensure the quality of grain. Nitrogen grain storage technology has been used in China for more than ten years.

[0003] However, in the process of building nitrogen grain storage silos, in order to reduce construction costs, a nitrogen filling device is often required to fill multiple grain silos with nitrogen. In actual use, due to the large size and weight of the nitrogen filling machine, it is inconvenient to move and transport it. In addition, since nitrogen is generally stored in compressed gas cylinders, during transportation, the filling port is not only easily contaminated with dust, affecting the cleanliness of the next nitrogen filling work, but also once a leak occurs, it cannot be discovered in time, which will cause great losses to the user. Therefore, it is of great significance to study a new mobile nitrogen filling equipment to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a mobile nitrogen filling equipment, which solves the problem that the nitrogen filling machine is generally large in size and weight, which is inconvenient to move and carry, and since nitrogen is generally stored in compressed gas cylinders, during the transportation process, the filling port is not only easily contaminated with dust, affecting the cleanliness of the next nitrogen filling work, but also once a leakage occurs, it cannot be discovered in time, which will cause great losses to the user.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mobile nitrogen filling equipment, comprising a shell, an alarm is installed on the top of the shell, a gas sensor is installed in the shell, the shell is fixed to a base plate by bolts, a fixing plate and a nitrogen filling device are fixed to the base plate, nitrogen tanks are connected to both sides of the nitrogen filling device, the nitrogen tanks are placed on the base plate, and one end of the nitrogen filling device is connected to a nitrogen filling head, the nitrogen filling head passes through the fixing plate and is located in two arc-shaped covers, two push rods are fixed in the arc-shaped covers, the two push rods correspond to the sealing structure, the sealing structure is fixed on the fixing plate, the bottom of the two arc-shaped covers is fixed with the same threaded drive structure, the threaded drive structure is fixed on the fixing plate, and four through openings are opened on the fixing plate.

[0008] As a further solution of the utility model: a handle is fixed on one side of the shell, and the nitrogen filling device and the nitrogen tank are both located in the shell, and are arranged between the shell and the fixing plate.

[0009] As a further solution of the utility model: two moving wheels are fixed to one side of the base plate, and supporting feet are fixed to the bottom of the base plate.

[0010] As a further solution of the utility model: two dovetail bars are fixedly connected to the fixing plate, and dovetail grooves are provided on the upper and lower parts of the arc-shaped cover, and the arc-shaped cover slides on the two dovetail bars through the two dovetail grooves.

[0011] As a further solution of the utility model: a plurality of heat sinks are arranged on one side of the nitrogen filling device, and the heat sinks are installed on the outer shell.

[0012] As a further solution of the utility model: the sealing structure includes an arc-shaped bar, a spring is fixed on one side of the arc-shaped bar, one end of the spring is fixed on the fixing plate, and the arc-shaped bar is spanned between the push rod.

[0013] As a further solution of the utility model: the threaded drive structure includes a screw rod, and the screw rod is rotatably connected to two fixed columns through two bearings, and the fixed columns are fixed on the fixed plate.

[0014] As a further solution of the utility model: both ends of the screw are fixedly connected with handles, the threads on both sides of the screw are arranged oppositely, and two threaded seats are threadedly connected to the screw, and the two threaded seats are respectively fixed to the bottom of the two arc covers.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The mobile nitrogen filling equipment is provided with a threaded driving structure and an arc cover. The screw can be rotated by a handle. Since the threads on both sides of the screw are arranged oppositely, the screw drives the two threaded seats to move closer to each other, so that the two arc covers are closer to each other and closed, so that the arc cover can protect the nitrogen filling head to prevent the nitrogen filling head from being contaminated with dust, which will affect the cleanliness of nitrogen filling in the future. The arc cover cooperates with the shell to protect the nitrogen tank and the nitrogen filling device. Secondly, the movement of the arc cover can also drive the push rod to squeeze the arc strip to open the through port, so that the through port keeps the shell and the arc cover connected, which is beneficial to the subsequent air tightness detection of the nitrogen filling head.

[0018] 2. The mobile nitrogen filling equipment is provided with a gas sensor and an alarm. The outer shell is kept airtight. The gas sensor can detect whether the nitrogen filling device is leaking, and can also detect whether the nitrogen filling head is leaking nitrogen through the opening. When leakage occurs, the alarm can be controlled to give an audible and visual alarm, thereby reducing losses.

[0019] 3. The mobile nitrogen filling equipment is provided with a handle and a moving wheel. The handle is used as a pulling point, and the outer shell is tilted so that the two moving wheels can contact the ground separately. At this time, the nitrogen filling device can be conveniently transferred by the handle and the moving wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model in a side-view stereoscopic manner;

[0022] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the arc-shaped cover of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the bottom plate of the utility model;

[0024] Figure 5 It is a three-dimensional structural diagram of the shell of the utility model;

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the fixing plate of the utility model;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the thread drive structure of the utility model;

[0027] In the figure: 1. shell; 2. alarm; 3. handle; 4. moving wheel; 5. heat sink; 6. threaded drive structure; 61. screw; 62. threaded seat; 63. handle; 64. fixed column; 7. bottom plate; 8. supporting foot; 9. sealing structure; 91. arc strip; 92. spring; 10. nitrogen charging device; 11. nitrogen tank; 12. arc cover; 13. dovetail strip; 14. gas sensor; 15. through port; 16. fixed plate; 17. push rod; 18. nitrogen charging head. DETAILED DESCRIPTION

[0028] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0029] like Figure 1-7As shown, the utility model provides a technical solution: a mobile nitrogen filling device, including a shell 1, a handle 3 is fixed on one side of the shell 1, and a nitrogen filling device 10 and a nitrogen tank 11 are both located in the shell 1, and a plurality of heat sinks 5 are set up on one side of the nitrogen filling device 10, and the heat sink 5 can conduct the heat of the nitrogen filling device 10 to diffuse outward, so as to facilitate the heat dissipation of the nitrogen filling device 10, and the heat sink 5 is installed on the shell 1 and between the shell 1 and the fixing plate 16, an alarm 2 is installed above the shell 1, and a gas sensor 14 is installed in the shell 1, The housing 1 is kept airtight, so the gas sensor 14 can detect whether the nitrogen filling device 10 is leaking, and can also detect whether the nitrogen filling head 18 is leaking nitrogen through the opening 15. When a leak occurs, the alarm 2 can be controlled to give an audible and visual alarm, thereby reducing losses. The housing 1 is fixed to the bottom plate 7 by bolts, and two moving wheels 4 are fixed on one side of the bottom plate 7. The handle 3 is used as a pulling point, and the housing 1 is tilted so that the two moving wheels 4 are separately in contact with the ground. At this time, the nitrogen filling device 10 can be conveniently transferred by the handle 3 and the moving wheels 4;

[0030] A support foot 8 is fixed to the bottom of the bottom plate 7, and the support foot 8 can support the bottom plate 7 to maintain the stability of the bottom plate 7, prevent the bottom plate 7 from tipping over, and prevent the sliding of the moving wheel 4 from causing the displacement of the bottom plate 7. A fixed plate 16 and a nitrogen charging device 10 are fixed to the bottom plate 7. Nitrogen tanks 11 are connected to both sides of the nitrogen charging device 10. The nitrogen tank 11 is placed on the bottom plate 7, and one end of the nitrogen charging device 10 is connected to a nitrogen charging head 18, which is connected to the granary through the nitrogen charging head 18. The nitrogen charging device 10 can be used to supplement the nitrogen in the granary. The nitrogen charging head 18 passes through the fixed plate 16 and is located in two arc covers 12. The arc cover 12 can protect the nitrogen charging head 18, thereby avoiding To prevent impurities from contaminating the nitrogen charging head 18, two push rods 17 are fixed in the arc cover 12, and the two push rods 17 correspond to the sealing structure 9. The sealing structure 9 includes an arc strip 91, and a spring 92 is fixed on one side of the arc strip 91. The elastic force of the spring 92 can push the arc strip 91 to reset, so that the arc strip 91 closes the through-port 15, thereby preventing dust from entering the housing 1. One end of the spring 92 is fixed on the fixing plate 16, and the arc strip 91 is arranged between the push rod 17. When the arc cover 12 pushes the push rod 17 to move, the push rod 17 pushes the arc strip 91 away from the through-port 15, so that the through-port 15 is opened, and the arc cover 12 is communicated with the housing 1, so that The gas sensor 14 can realize air tightness detection. The sealing structure 9 is fixed on the fixed plate 16. Two dovetail strips 13 are fixedly connected to the fixed plate 16. Dovetail grooves are provided on the upper and lower sides of the arc cover 12. The dovetail strip 13 can guide the arc cover 12 so that the arc cover 12 can slide smoothly on the dovetail strip 13 through the dovetail grooves. The arc cover 12 slides on the two dovetail strips 13 through the two dovetail grooves. The bottom of the two arc covers 12 is fixed with the same threaded drive structure 6. The threaded drive structure 6 includes a screw 61. The screw 61 is rotatably connected to two fixed columns 64 through two bearings. The fixed columns 64 fix the bearings and enable the screw 61 to The bearing maintains stable rotation, and the fixed column 64 is fixed on the fixed plate 16. Both ends of the screw rod 61 are fixedly connected with handles 63. The handles 63 are used as force points to facilitate the staff to control the rotation of the screw rod 61. The threads on both sides of the screw rod 61 are arranged oppositely. The threads of the screw rod 61 are arranged oppositely from the middle to both sides, so that the screw rod 61 can smoothly drive the two threaded seats 62 to move away from or towards each other. Two threaded seats 62 are threadedly connected to the screw 61, and the two threaded seats 62 are respectively fixed to the bottom of the two arc covers 12. The threaded drive structure 6 is fixed on the fixed plate 16, and four through holes 15 are opened on the fixed plate 16.

[0031] The working principle of the utility model is:

[0032] When the granary is filled with nitrogen, the handle 63 is rotated in the opposite direction to drive the screw 61 to rotate, and the screw 61 drives the threaded seats 62 to move away from each other, so that the two arc covers 12 move away from each other. At this time, the elastic force of the spring 92 drives the arc strip 91 to reset, so that the arc strip 91 closes the opening 15 and exposes the nitrogen filling head 18. Then, by connecting the nitrogen filling head 18 to the granary, the nitrogen filling device 10 can be controlled to fill nitrogen into the granary through the nitrogen filling head 18. After the nitrogen filling is completed, the handle 63 is turned to drive the screw 61 to rotate, so that the screw 61 drives the two threaded seats 62 to move closer to each other through the threaded seat 62, so that the two threaded seats 62 are closed, and the arc cover 12 drives the push rod 17 to squeeze the arc strip 91 to move, and the arc strip 91 compresses the spring 92 away from the opening 15. Then, the gas sensor 14 can be used to detect whether the nitrogen filling head 18 and the nitrogen filling device 10 are leaking. If a leak occurs, the alarm 2 is controlled to alarm.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A mobile nitrogen filling device, comprising a housing (1), characterized in that: An alarm (2) is installed above the housing (1), a gas sensor (14) is installed inside the housing (1), the housing (1) is fixed to a base plate (7) by bolts, a fixing plate (16) and a nitrogen charging device (10) are fixed to the base plate (7), both sides of the nitrogen charging device (10) are connected to nitrogen tanks (11), the nitrogen tanks (11) are placed on the base plate (7), one end of the nitrogen charging device (10) is connected to a nitrogen charging head (18), and the nitrogen charging head (18) is connected to the nitrogen charging head (18). 8) passes through a fixed plate (16) and is located in two arc-shaped covers (12), two push rods (17) are fixed in the arc-shaped covers (12), the two push rods (17) correspond to the sealing structure (9), the sealing structure (9) is fixed on the fixed plate (16), the bottom of the two arc-shaped covers (12) is fixed with a same threaded drive structure (6), the threaded drive structure (6) is fixed on the fixed plate (16), and four through openings (15) are opened on the fixed plate (16).

2. A mobile nitrogen filling equipment according to claim 1, characterized in that: A handle (3) is fixed to one side of the shell (1), and the nitrogen charging device (10) and the nitrogen tank (11) are both located in the shell (1) and are arranged between the shell (1) and the fixing plate (16).

3. The mobile nitrogen filling equipment according to claim 1, characterized in that: Two moving wheels (4) are fixed on one side of the base plate (7), and a supporting foot (8) is fixed on the bottom of the base plate (7).

4. The mobile nitrogen filling equipment according to claim 1, characterized in that: Two dovetail bars (13) are fixedly connected to the fixing plate (16), and dovetail grooves are provided on the upper and lower parts of the arc-shaped cover (12). The arc-shaped cover (12) slides on the two dovetail bars (13) through the two dovetail grooves.

5. The mobile nitrogen filling equipment according to claim 1, characterized in that: A plurality of heat sinks (5) are arranged on one side of the nitrogen charging device (10), and the heat sinks (5) are installed on the outer shell (1).

6. The mobile nitrogen filling equipment according to claim 1, characterized in that: The sealing structure (9) comprises an arc-shaped strip (91), a spring (92) is fixed on one side of the arc-shaped strip (91), one end of the spring (92) is fixed on a fixed plate (16), and the arc-shaped strip (91) is spanned between the push rod (17).

7. The mobile nitrogen filling equipment according to claim 1, characterized in that: The threaded drive structure (6) comprises a screw rod (61), wherein the screw rod (61) is rotatably connected to two fixing columns (64) via two bearings, and the fixing columns (64) are fixed to a fixing plate (16).

8. The mobile nitrogen filling equipment according to claim 7, characterized in that: Both ends of the screw rod (61) are fixedly connected with handles (63), the threads on both sides of the screw rod (61) are arranged oppositely, and two threaded seats (62) are threadedly connected to the screw rod (61), and the two threaded seats (62) are respectively fixed to the bottoms of the two arc-shaped covers (12).

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