Ton bag venting device
By designing a ton bag exhaust device that uses a combination of locking blocks and pulleys, the problem of inconvenient disassembly and assembly of the filter device in existing ton bag exhaust devices has been solved. This enables convenient installation and disassembly of the filter screen, improves production efficiency, and protects the vacuum pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN HONGSHAN NEW ENERGY TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-03
AI Technical Summary
The existing filtration devices for ton bag exhaust systems are inconvenient to disassemble and assemble, which affects production efficiency.
A ton bag exhaust device was designed, comprising a locking block, a mounting plate, a filter screen, and a drive assembly. The filter screen can be easily installed and removed through the cooperation of the protrusion and the pulley. The filter screen replacement and cleaning process is simplified by using the locking roller and the mounting base for securing it.
It enables convenient installation and removal of the filter screen, improves production efficiency, protects the vacuum pump, and extends the service life of the equipment.
Smart Images

Figure CN224453025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ton bag exhaust, and in particular to a ton bag exhaust device. Background Technology
[0002] As is well known, in industrial production, ton bags (also known as bulk containers) are widely used as a type of large-capacity bulk transport packaging container for the storage and transportation of powdery and granular materials. In order to improve the loading efficiency and space utilization of ton bags, it is usually necessary to exhaust the gas inside the ton bag. This process often relies on a vacuum pump to extract excess gas from the exhaust port of the ton bag.
[0003] However, in actual exhaust operations, since the materials loaded in the ton bag are mostly powdery, the gas carries a large amount of dust when it is extracted. When this dusty gas directly enters the vacuum pump, the dust easily mixes into the vacuum pump oil, which not only contaminates the vacuum pump oil, leading to a decrease in its lubrication and sealing performance, but also accelerates the wear of the internal components of the vacuum pump and shortens its service life. Therefore, existing technologies usually add a dust filter between the vacuum pump and the ton bag to intercept dust in the gas and protect the vacuum pump. However, the filter devices currently used are mostly fixed with bolts. Although this fixing method can ensure the stability of the connection, when the filter device needs to be cleaned, the filter material replaced, or maintenance performed, it is necessary to use tools to disassemble each bolt one by one. The operation is cumbersome and time-consuming, which affects production efficiency. Utility Model Content
[0004] The main purpose of this utility model is to provide a ton bag exhaust device, which aims to solve the problem that the filter device in the existing ton bag exhaust device is inconvenient to disassemble and install.
[0005] To achieve the above objectives, this utility model proposes a ton bag exhaust device comprising a pump body (a vacuum pump), a connecting pipe disposed on one side of the pump body, an installation pipe for mounting an exhaust pipe on one side of the connecting pipe, the end of the exhaust pipe away from the installation pipe being connected to the ton bag, two sets of locking blocks disposed inside the connecting pipe, two sets of mounting plates slidably disposed inside the connecting pipe, the bottom mounting plate of the two sets of mounting plates contacting the locking blocks, and two sets of filter screens disposed inside the mounting plates for filtering dust and preventing dust from entering the bag. To prevent dust from entering the vacuum pump, the system includes two sets of mounting bases, one on each side of the top mounting plate, and two sets of mounting components. Each mounting component includes a horizontal plate and a pulley, both of which are slidably mounted on one side of the connecting pipe. A retaining rod is provided on one side of the horizontal plate, parallel to the mounting base, with one end of the retaining rod engaging the inside of the connecting pipe. A protrusion with a triangular vertical cross-section is provided on one side of the horizontal plate, with one side of the protrusion contacting the outer side of the pulley. Finally, a drive assembly is provided on the outside of the connecting pipe.
[0006] Preferably, both sets of the connecting pipes are provided with fixing frames, which are located on the outside of the cross plate and the pulley.
[0007] Preferably, a central shaft is slidably disposed inside the fixing frame, and both ends of the central shaft pass through the fixing frame, and the pulley is rotatably disposed outside the central shaft.
[0008] Preferably, the inside of the cross plate is provided with two sets of limiting rods, one end of which is fixedly disposed on one side of the connecting pipe.
[0009] Preferably, a fixing plate is provided on the outer side of the limiting rod, and a first spring is provided on one side of the fixing plate. The first spring is fixedly disposed on the side away from the fixing plate and on the side of the horizontal plate.
[0010] Preferably, the drive assembly includes a bearing, which is disposed on one side of the connecting pipe. A threaded pipe is disposed in the middle of the bearing, and a sleeve is screwed onto the outer side of the threaded pipe. Both sets of the sleeve are provided with connecting frames, and a top block is disposed on the side of the connecting frame away from the sleeve.
[0011] Preferably, a protective cover is provided on the outside of the connecting pipe, the protective cover is located on the outside of the threaded pipe, a handle is provided on the end of the threaded pipe away from the bearing, the handle is located on the outside of the protective cover, and multiple sets of mounting holes are opened inside the handle.
[0012] Preferably, a support base is provided on one side of the protective cover, a locking rod is slidably provided inside the support base, a disc is provided at one end of the locking rod, a second spring is fixedly provided between the disc and the support base, and the end of the locking rod away from the disc is engaged in the mounting hole.
[0013] In the technical solution of this utility model, through the cooperation between the protrusion and the pulley, when the pulley moves and pushes the protrusion, the protrusion will push the locking rod by pushing the horizontal plate. At this time, the locking rod will be locked into the mounting base, thereby locking the filter screen by locking the mounting base, so that the filter screen is stably installed in the connecting pipe. When the locking rod moves back and no longer locks the mounting base, the operator can easily take out the filter screen for cleaning or replacement, which facilitates the work of disassembling and assembling the filter screen. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 the structures shown in these drawings without creative effort.
[0015] Figure 1 This is a side view of the structure of this utility model;
[0016] Figure 2 This is a structural cross-sectional view of the connecting pipe and fixing frame of this utility model;
[0017] Figure 3 This is a schematic diagram of the installation component of this utility model;
[0018] Figure 4 This is a cross-sectional view of the protective cover of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the drive component of this utility model;
[0020] Figure 6 This is a schematic diagram of the locking rod of this utility model;
[0021] Figure 7 This is a cross-sectional view of the connecting pipe of this utility model.
[0022] Reference numerals: 1. Pump body; 2. Mounting assembly; 201. Horizontal plate; 202. Clamping roller; 203. Protrusion; 204. Pulley; 205. Central shaft; 206. First spring; 207. Fixing plate; 208. Limiting rod; 3. Drive assembly; 301. Bearing; 302. Sleeve; 303. Connecting frame; 304. Top block; 305. Threaded pipe; 306. Mounting hole; 307. Handle; 4. Connecting pipe; 5. Protective cover; 6. Fixing frame; 7. Mounting plate; 8. Clamping block; 9. Filter screen; 10. Support base; 11. Locking rod; 12. Second spring; 13. Disc; 14. Fixing hole; 15. Mounting base; 16. Connecting plate; 17. Sealing gasket.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0026] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0027] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0028] This utility model provides a ton bag exhaust device.
[0029] like Figures 1 to 7As shown, the ton bag exhaust device provided in this embodiment of the utility model includes a pump body 1, which is a vacuum pump. A connecting pipe 4 is bolted to the input end of the pump body 1. An installation pipe is welded to one side of the connecting pipe 4, and the installation pipe communicates with the connecting pipe 4. The installation pipe is used to install an exhaust pipe. The end of the exhaust pipe furthest from the installation pipe is connected to the ton bag. After the pump body 1 is turned on, the gas inside the ton bag will enter the connecting pipe 4 through the exhaust pipe and the installation pipe. A sealing cover is fastened to one end of the connecting pipe 4. Two sets of locking blocks 8 are welded inside the connecting pipe 4, and two sets of mounting plates 7 are slidably connected inside the connecting pipe 4. Two sets of connecting plates 16 are welded between the two sets of mounting plates 7. The mounting plate 7 at the bottom of the two sets of mounting plates 7 is in contact with the locking block 8, while two sets of mounting seats 15 are welded to one side of the mounting plate 7 at the top. The mounting seat 15 has a fixing hole 14 inside. The mounting plate 7 is equipped with a filter screen 9 inside. The filter screen 9 can filter the gas entering the connecting pipe 4 and prevent dust in the gas from entering the pump body 1. Mounting components 2 are provided on both sides of the connecting pipe 4, a drive component 3 is provided on one side of the connecting pipe 4, and a fixing bracket 6 is welded on both sides of the connecting pipe 4.
[0030] First, refer to Figures 1 to 4 In this embodiment, the mounting assembly 2 includes a horizontal plate 201 and a central shaft 205. The horizontal plate 201 is slidably connected to the outside of the connecting pipe 4 and is located inside the fixing frame 6. The central shaft 205 is slidably connected to the inside of the fixing frame 6. A retaining rod 202 is welded to one side of the horizontal plate 201. The retaining rod 202 is parallel to the fixing hole 14, and the end of the retaining rod 202 away from the horizontal plate 201 is engaged in the connecting pipe 4. Sealing gaskets 17 are fixedly connected to both sides of the connecting pipe 4. The sealing gaskets 17 are rubber sealing gaskets and are located outside the retaining rod 202. A protrusion 203 is welded to the side of the horizontal plate 201 away from the retaining rod 202. The vertical cross section of the protrusion 203 is triangular. A pulley 204 is rotatably arranged on the outside of the central shaft 205, and the outside of the pulley 204 contacts one side of the protrusion 203.
[0031] Specifically, in order to maintain the balance of the horizontal plate 201, two sets of limiting rods 208 are slidably connected inside the horizontal plate 201. One end of the limiting rod 208 is welded to the outside of the connecting pipe 4. As a result, the horizontal plate 201 will move linearly along the outside of the limiting rod 208. On the one hand, the limiting rod 208 maintains the balance of the horizontal plate 201 during movement, preventing the horizontal plate 201 from becoming unbalanced and swaying during movement, thus ensuring the normal displacement of the horizontal plate 201. On the other hand, the limiting rod 208 restricts the direction of the horizontal plate 201, preventing the device from failing due to misalignment of the horizontal plate 201, thus ensuring the normal use of the device.
[0032] Meanwhile, in order to enable the clamping roller 202 to move back quickly, a fixing plate 207 is welded to the outside of the limiting rod 208. A first spring 206 is welded to one side of the fixing plate 207, and the end of the first spring 206 away from the fixing plate 207 is welded to the horizontal plate 201. Thus, when the horizontal plate 201 is pushed, the first spring 206 will be stretched by the horizontal plate 201. When the horizontal plate 201 is no longer pushed, the first spring 206 will drive the clamping roller 202 to move back quickly by bouncing the horizontal plate 201 back, thereby enabling the clamping roller 202 to quickly detach from the mounting base 15.
[0033] When the central shaft 205 is pushed, the central shaft 205 will drive the pulley 204 to move longitudinally. The movement of the pulley 204 will push the protrusion 203 to move laterally. The lateral movement of the protrusion 203 will drive the horizontal plate 201 to move laterally. The movement of the horizontal plate 201 will drive the locking roller 202 to be locked into the fixing hole 14. At this time, the locking roller 202 will lock the mounting plate 7 and the filter screen 9 by locking the mounting base 15, thereby making the mounting plate 7 and the filter screen 9 stably installed in the connecting pipe 4.
[0034] Then, refer to Figure 1 , Figure 4 and Figure 5 In this embodiment, the drive assembly 3 includes a bearing 301, which is bolted to one side of the connecting pipe 4. A threaded pipe 305 is fixedly connected to the middle of the bearing 301, and a sleeve 302 is threaded onto the outer side of the threaded pipe 305. The sleeve 302 has a threaded hole inside that matches the thread on the outer side of the threaded pipe 305. When the threaded pipe 305 rotates, it will drive the sleeve 302 to move linearly. Both sets of connecting brackets 303 are welded to the sleeve 302. The connecting brackets 303 are located away from the sleeve 302. A top block 304 is welded to the side, and the top of the top block 304 contacts the outer side of the central shaft 205. A protective cover 5 is bolted to the outer side of the connecting pipe 4. The protective cover 5 is located outside the threaded pipe 305, so that the threaded pipe 305 can be protected by the protective cover 5. A handle 307 is welded to the end of the threaded pipe 305 away from the bearing 301. The handle 307 is located outside the protective cover 5, so that the threaded pipe 305 can be rotated by the handle 307. Multiple sets of mounting holes 306 are opened inside the handle 307.
[0035] When the handle 307 is turned, the handle 307 will drive the threaded tube 305 to rotate. The rotation of the threaded tube 305 will drive the sleeve 302 to move linearly. The movement of the sleeve 302 will drive the connecting bracket 303 to move. The movement of the connecting bracket 303 will drive the top block 304 to move, thereby causing the top block 304 to push the central shaft 205 to move longitudinally.
[0036] Finally, see Figure 1 and Figure 6In this embodiment, a support base 10 is welded to one side of the protective cover 5. A locking rod 11 is slidably disposed inside the support base 10. A disc 13 is welded to one end of the locking rod 11. A second spring 12 is welded between the disc 13 and the support base 10. The end of the locking rod 11 away from the disc 13 is engaged in the mounting hole 306. When the locking rod 11 is engaged in the mounting hole 306, the handle 307 will be locked and cannot be rotated. After moving the locking rod 11 to disengage it from the mounting hole 306, the handle 307 will no longer be locked. At this time, the operator can easily rotate the handle 307.
[0037] The ton bag exhaust device, through the cooperation between the protrusion 203 and the pulley 204, when the pulley 204 moves and pushes the protrusion 203, the protrusion 203 will push the clamping roller 202 by pushing the horizontal plate 201. At this time, the clamping roller 202 will be locked into the mounting base 15, thereby locking the filter screen 9 by locking the mounting base 15, so that the filter screen 9 is stably installed in the connecting pipe 4. When the clamping roller 202 moves back and no longer locks the mounting base 15, the operator can easily take out the filter screen 9 for cleaning or replacement, which facilitates the work of disassembling and assembling the filter screen 9.
[0038] In use, first place the ton bag exhaust device in the desired location. Then, install the filter screen 9. Specifically, place the mounting plate 7 and filter screen 9 into the connecting pipe 4. Stop moving the mounting plate 7 when it contacts the locking block 8 at the bottom. Then adjust the mounting plate 7 so that the fixing hole 14 and the locking roller 202 are parallel. Then, turn the handle 307 to rotate the threaded pipe 305. The rotation of the threaded pipe 305 will cause the sleeve 302 to move linearly. The movement of the sleeve 302 will cause the connecting frame 303 to move. The movement of the connecting frame 303 will... The top block 304 is moved, which in turn pushes the central shaft 205 to move longitudinally. When the central shaft 205 is pushed, it will drive the pulley 204 to move longitudinally. The movement of the pulley 204 will push the protrusion 203 to move laterally. The lateral movement of the protrusion 203 will drive the horizontal plate 201 to move laterally. The movement of the horizontal plate 201 will drive the locking rod 202 to be locked into the fixing hole 14. At this time, the locking rod 202 will lock the mounting plate 7 and the filter screen 9 by locking the mounting base 15, thereby making the mounting plate 7 and the filter screen 9 stably installed in the connecting pipe 4.
[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.
Claims
1. A ton bag venting device characterized by, include: Pump body (1); Connecting pipe (4), the connecting pipe (4) is disposed on one side of pump body (1); Two sets of locking blocks (8) are disposed inside the connecting pipe (4); Two sets of mounting plates (7) are slidably disposed inside the connecting pipe (4); Two sets of filter screens (9) are disposed inside the mounting plate (7); Two sets of mounting bases (15), the mounting bases (15) being disposed on one side of the top mounting plate (7) of the two sets of mounting plates (7); Two sets of mounting components (2), each mounting component (2) includes a horizontal plate (201) and a pulley (204). Both the horizontal plate (201) and the pulley (204) are slidably disposed on one side of the connecting pipe (4). A retaining rod (202) is provided on one side of the horizontal plate (201), and the retaining rod (202) is parallel to the mounting base (15). One end of the retaining rod (202) is engaged inside the connecting pipe (4). A protrusion (203) is provided on one side of the horizontal plate (201), and one side of the protrusion (203) contacts the outer side of the pulley (204). The drive assembly (3) is disposed on the outside of the connecting pipe (4).
2. The ton bag venting device of claim 1, wherein Both sets of the connecting pipe (4) are provided with fixing brackets (6), which are located on the outside of the horizontal plate (201) and the pulley (204).
3. The ton bag exhaust device according to claim 2, characterized in that, The fixing frame (6) has a central shaft (205) that slides inside, and both ends of the central shaft (205) pass through the fixing frame (6). The pulley (204) is rotatably arranged on the outside of the central shaft (205).
4. The ton bag venting device of claim 1, wherein The inside of the horizontal plate (201) is provided with two sets of limiting rods (208), one end of which is fixedly disposed on one side of the connecting pipe (4).
5. The ton bag venting device of claim 4, wherein, A fixing plate (207) is provided on the outer side of the limiting rod (208), and a first spring (206) is provided on one side of the fixing plate (207). The first spring (206) is fixedly disposed on the side away from the fixing plate (207) and on the side of the horizontal plate (201).
6. The ton bag venting device of claim 1, wherein The drive assembly (3) includes a bearing (301), which is disposed on one side of the connecting pipe (4). A threaded pipe (305) is disposed in the middle of the bearing (301), and a sleeve (302) is screwed onto the outer side of the threaded pipe (305). A connecting frame (303) is disposed on both sides of the sleeve (302), and a top block (304) is disposed on the side of the connecting frame (303) away from the sleeve (302).
7. The ton bag venting device of claim 6, wherein A protective cover (5) is provided on the outside of the connecting pipe (4). The protective cover (5) is located on the outside of the threaded pipe (305). A handle (307) is provided at the end of the threaded pipe (305) away from the bearing (301). The handle (307) is located on the outside of the protective cover (5), and multiple sets of mounting holes (306) are opened inside the handle (307).
8. The ton bag venting device of claim 7, wherein, A support base (10) is provided on one side of the protective cover (5). A locking rod (11) is slidably provided inside the support base (10). A disc (13) is provided at one end of the locking rod (11). A second spring (12) is fixedly provided between the disc (13) and the support base (10). The end of the locking rod (11) away from the disc (13) is engaged in the mounting hole (306).