A device for assisting in tensioning a cellar pit safety net
By designing an auxiliary tensioning device for the pit safety net, the simultaneous winding and tensioning of the safety net was achieved, solving the safety hazards caused by the loosening of the pit safety net and improving the convenience of operation and the protective effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU XIJIU INVESTMENT HLDG GRP CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-10
AI Technical Summary
The existing safety nets for cellars are prone to loosening during use, causing them to sag, which affects their effectiveness and increases safety hazards. The existing tightening operation is cumbersome, time-consuming, and labor-intensive.
An auxiliary tensioning device for cellar safety nets was designed, which uses a tensioning mechanism and a tensioning belt. By rotating the tensioning mechanism, the two safety nets can be rolled up and tightened synchronously. Combined with a locking component and a limiting rotating cylinder, the uniform tensioning and convenient winding of the safety nets are ensured.
It improves the ease of tensioning and rewinding of safety nets, prevents safety nets from loosening or deforming, ensures the protective effect around the pit, and reduces operation time and manual labor intensity.
Smart Images

Figure CN224478066U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of safety protection technology in winemaking workshops, and in particular to a device for assisting in tightening safety nets in cellars. Background Technology
[0002] The fermentation pits in the sauce-flavored liquor production workshop are a type of equipment for anaerobic fermentation of mash. When workers walk on the pit sills, they are prone to falling into the pits. To improve the safety of using the pits, a safety net is laid on top of the pits to protect them from falling.
[0003] The existing safety nets for cellars are prone to loosening during use because they are tightened manually, which affects their effectiveness. The sagging of the safety nets leads to large gaps around the cellar, which can easily cause safety accidents. Therefore, they need to be tightened in time. The current method of tightening the safety nets requires workers to manually adjust and tighten them in multiple positions, and then tie them with ropes to secure them, which is a rather cumbersome operation. Utility Model Content
[0004] Based on this, this application provides an auxiliary device for tightening the safety net in the pit, so as to improve the convenience of tightening and rewinding the safety net.
[0005] To solve the above problems, this utility model provides an auxiliary tensioning device for a pit safety net, comprising: a pit, a safety net, a tensioning mechanism, and a tensioning belt.
[0006] Two safety nets are symmetrically laid above the cellar, and the tensioning mechanism is located between the two safety nets;
[0007] One end of the tensioning band is connected to the safety net near the pulling mechanism, and the other end of the tensioning band is connected to the tensioning mechanism;
[0008] The tension straps on the two safety nets are symmetrically arranged on the upper and lower sides of the pulling mechanism, respectively;
[0009] Rotating the pulling mechanism causes the tensioning straps on both safety nets to be simultaneously wound up and tightened, thus enabling the simultaneous tightening or winding up of both safety nets.
[0010] Furthermore, the tensioning mechanism includes a mounting base, a rotating shaft, and a take-up roller.
[0011] The mounting bases are symmetrically and fixedly connected to the pit. The rotating shaft is rotatably connected between the two mounting bases. A winding roller is sleeved on the rotating shaft, and a tension belt is connected to the winding roller.
[0012] Furthermore, a locking assembly is connected between the rotating shaft and the two mounting bases to restrict the rotation of the rotating shaft.
[0013] Furthermore, the locking assembly includes a fixing tube fixedly connected to the mounting base, and a plurality of locking teeth are evenly connected to the inner wall of the fixing tube.
[0014] Furthermore, a turntable is fixedly sleeved on the rotating shaft, and a locking block corresponding to the locking teeth is provided on the turntable for locking the turntable.
[0015] Furthermore, a handle is fixedly connected to the turntable, and two through holes are opened on the handle. A sliding rod is movably inserted into the through holes, and the same pressure plate is fixedly connected to the two sliding rods. Two springs are fixedly connected between the pressure plate and the handle. The locking block is connected to the turntable through the pressure plate. When the pressure plate is pressed, the pressure plate can drive the locking block to engage with the locking teeth.
[0016] Furthermore, multiple hanging parts are fixedly connected around the cellar, and multiple hanging ropes are fixedly connected to the edge of the safety net; in use, the hanging ropes on the safety net can be movably looped onto the hanging parts.
[0017] Furthermore, the hanging component includes a fixed rod fixedly connected to the cellar, a limiting rod fixedly connected to the upper end of the fixed rod, and the hanging rope is sleeved on the fixed rod. The limiting rod can prevent the hanging rope from falling off.
[0018] Furthermore, the upper side of the cellar is provided with multiple hidden grooves, and the fixing rod is located in the hidden grooves.
[0019] Furthermore, the tension band is fixed to the take-up roller by a locking device.
[0020] The locking component includes a screw and a locking nut. Coaxial pin holes are provided on the take-up roller and the rotating shaft. The screw is movably inserted into the pin holes. Locking nuts are connected to both ends of the screw. The tension band is fixed by the cooperation between the locking nuts and the screw.
[0021] Furthermore, a fixing plate 9 is fixedly connected to the mounting base 5, and the same mounting shaft 10 is fixedly connected between the two fixing plates 9. A limiting rotating cylinder 11 is movably sleeved outside the mounting shaft 10. The limiting rotating cylinder 11 is located above the safety net 3 and fits against the safety net 3, and is used to limit the safety net 3.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] (1) This utility model, through the tensioning mechanism, can simultaneously tension two safety nets and can also roll up and store the two safety nets, which improves the convenience of tensioning the safety nets on the one hand and the convenience of rolling up the safety nets on the other.
[0024] (2) The limiting rotating cylinder set in this utility model can limit the safety net, thereby preventing one side of the safety net from tilting up when it is tightened, and effectively improving the protective effect of the safety net. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a top view of the present invention;
[0027] Figure 3 for Figure 1 Schematic diagram of the tensioning mechanism;
[0028] Figure 4 for Figure 1 Schematic diagram of the connection structure between the mounting base and the locking assembly;
[0029] Figure 5 for Figure 1 Schematic diagram of the structure of the middle pendant;
[0030] Figure 6 for Figure 1 Schematic diagram of the connection structure between the tension band and the locking element;
[0031] In the diagram: 1. Pit; 2. Hanger; 3. Safety net; 4. Hanging rope; 5. Mounting base; 6. Rotary shaft; 7. Winding roller; 8. Tensioning belt; 9. Fixing plate; 10. Mounting shaft; 11. Limiting drum; 12. Fixing tube; 13. Clamping tooth; 14. Turntable; 15. Handle; 16. Sliding rod; 17. Pressure plate; 18. Spring; 19. Locking block; 20. Fixing rod; 21. Limiting rod; 22. Pin hole; 23. Screw; 24. Locking nut; 25. Hidden groove; 26. Anti-detachment block. Detailed Implementation
[0032] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the scope of the present application.
[0033] This utility model relates to an auxiliary device for tightening safety nets in cellars, as one embodiment, such as... Figure 1-2As shown, the system includes a pit 1, on which multiple hanging brackets 2 are fixedly connected. These brackets are typically made of corrosion-resistant metal to ensure long-term stability. Two safety nets 3 are symmetrically laid above the pit 1. For example, the safety nets 3 are woven from high-strength fibers. Multiple hanging ropes 4, which are movably sleeved on the hanging brackets 2, are fixedly connected to the edges of the safety nets 3. A tensioning mechanism is fixedly connected to the upper side of the pit 1, located between the two safety nets 3. By rotating the tensioning mechanism, the tensioning straps 8 on the two safety nets 3 can be synchronously rolled up and tightened, thus enabling the simultaneous tightening or rolling up of the two safety nets 3.
[0034] For example, the hanging piece 2 can adopt a spring buckle design, and the end of the hanging rope 4 can be equipped with a quick-release buckle, which facilitates the individual replacement or emergency disassembly of the safety net.
[0035] For example, a digital tension sensor can be installed on the tension band 8 to monitor the prestress status of the safety net in real time. The length of the tension band 8 is adjustable, and by using tension bands 8 of different lengths, it can be adapted to various cellars with depths of 1-3 meters, including liquor fermentation cellars, underground wine storage cellars, etc.
[0036] The tensioning mechanism allows for the simultaneous tensioning of two safety nets, as well as their retraction and storage. This simultaneous tensioning and rapid retraction improves both the ease of tensioning and retraction of the safety nets.
[0037] Specifically, traditional pit safety nets require individual adjustment of the hanging ropes, which is time-consuming and labor-intensive, and prone to uneven tension. The tensioning mechanism in this application can simultaneously tighten two safety nets with a single operation, ensuring even force on both sides and preventing the safety nets from loosening or deforming. This effectively solves the problem of large gaps around the pit caused by sagging safety nets. When the pit no longer needs protection, or when the safety nets need to be temporarily tightened during pit cleaning or maintenance, the connection between safety net 3 and pit 1 can be released, and the two safety nets 3 can be rolled up and stored by rotating the tensioning mechanism.
[0038] As one example, such as Figure 3 As shown, the tensioning mechanism includes two mounting seats 5 symmetrically fixedly connected to the pit 1. The two mounting seats 5 are rotatably connected to the same rotating shaft 6. Bearings can be installed inside the mounting seats 5 to reduce the frictional resistance when the rotating shaft 6 rotates. A take-up roller 7 is fixedly sleeved on the rotating shaft 6. Multiple tensioning straps 8 are fixedly connected to the side of the safety net 3 near the take-up roller 7. The tensioning straps 8 are fixedly connected to the take-up roller 7 by locking components. The tensioning straps 8 located on the two safety nets 3 are symmetrically arranged on the upper and lower sides of the take-up roller 7, respectively. A locking component is connected between the rotating shaft 6 and the two mounting seats 5.
[0039] For example, anti-slip textures or grooves may be designed on the surface of the take-up roller 7 to enhance friction with the tension band 8. The tension band 8 may be made of high-strength nylon or polyester fiber braided tape.
[0040] The locking assembly includes a fixed tube 12 fixedly connected to the mounting base 5. Multiple locking teeth 13 are evenly connected to the inner wall of the fixed tube 12. The locking teeth 13 are sawtooth or trapezoidal. A turntable 14 is fixedly sleeved on the rotating shaft 6. Locking blocks 19 corresponding to the locking teeth 13 are provided on the turntable 14 for locking the turntable 14.
[0041] In this embodiment, during use, the hanging rope 4 on the safety net 3 is hung on the hanging piece 2, and the tensioning band 8 is fixed to the winding roller 7 by the locking member. When tightening is required, the locking component is released from the limit of the turntable 14, and the turntable 14 is rotated. The turntable 14 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the winding roller 7 to rotate. The winding roller 7 synchronously winds up and tightens the tensioning bands 8 on the two safety nets 3, so that the two safety nets 3 can be tightened at the same time. After tightening, the turntable 14 is locked again by the locking component, and the two safety nets 3 can also be wound up and stored by the winding roller 7, which effectively improves the convenience of tightening the safety net 3 and the convenience of winding the safety net 3.
[0042] As one example, such as Figure 3 As shown, two fixing plates 9 are symmetrically fixedly connected to each of the two mounting bases 5. The same mounting shaft 10 is fixedly connected between the two fixing plates 9 on the two mounting bases 5. A limiting rotating cylinder 11 is movably sleeved on the outside of the mounting shaft 10. The limiting rotating cylinder 11 is located above the safety net 3, and the outer wall of the limiting rotating cylinder 11 is tightly fitted with the upper side of the safety net 3.
[0043] The limiting rotating drum 11 can limit the safety net 3, ensuring its flat unfolding and preventing one side from tilting up when the safety net 3 is tightened, thus affecting the protective effect and effectively improving the protective effect of the safety net 3. In addition, the safety net 3 will slide along the surface of the limiting rotating drum 11 during the unfolding and retraction process. The rotational characteristics of the drum reduce wear on the netting and extend its service life. For heavier safety nets, the support of the rotating drum 11 can share some of the weight of the net, thereby reducing the load on the tensioning belt 8.
[0044] like Figure 4As shown, the locking assembly includes a fixed tube 12 fixedly connected to the mounting base 5. Multiple locking teeth 13 are evenly fixedly connected to the inner wall of the fixed tube 12. A turntable 14 is fixedly sleeved on the rotating shaft 6. A handle 15 is fixedly connected to the turntable 14. Two through holes are opened on the handle 15, and sliding rods 16 are movably inserted into the through holes. The same pressure plate 17 is fixedly connected to the two sliding rods 16. Two springs 18 are fixedly connected between the pressure plate 17 and the handle 15. A locking block 19 corresponding to the locking teeth 13 is fixedly connected to the pressure plate 17. In use, the handle 15 is held and the pressure plate 17 is pressed. The pressure plate 17 drives the locking block 19 to disengage from the locking teeth 13, thereby releasing the lock on the turntable 14. When the pressure plate 17 is released, the springs 18 drive the locking block 19 to engage between the two locking teeth 13, thus locking the turntable 14.
[0045] As one example, such as Figure 5 As shown, the hanging component 2 includes a fixed rod 20 fixedly connected to the pit 1. A limiting rod 21 is fixedly connected to the upper end of the fixed rod 20. The hanging rope 4 is sleeved on the fixed rod 20. The limiting rod 21 can prevent the hanging rope 4 from falling off, thus improving the stability of the safety net 3 installation.
[0046] As one example, such as Figure 3 and 6 As shown, the locking component includes pin holes 22 on the take-up roller 7 and the rotating shaft 6. A screw 23 is movably inserted into the pin hole 22. Two locking nuts 24 are threaded on the wall of the screw 23. The locking nuts 24 cooperate with the screw 23 to securely fix the tension belt 8.
[0047] As one example, such as Figure 2 As shown, multiple hidden slots 25 are provided on the upper side of the cellar 1. These hidden slots 25 are designed to accommodate the fixing rod 20. By placing the fixing rod 20 within these hidden slots 25, the hanging piece 2 can be effectively concealed, thereby enhancing the aesthetics of the cellar without compromising its overall appearance.
[0048] As one example, such as Figure 3 As shown, at one end of the grip 15, the sliding rod 16 is designed to be away from the pressure plate 17, and one end of it is connected to the anti-detachment block 26 by a fixed connection. The diameter of the anti-detachment block 26 is larger than the diameter of the through hole, ensuring that the sliding rod 16 will not accidentally detach from the grip 15 during use, thereby improving the stability and safety of the grip.
[0049] The working principle of this embodiment is as follows: When in use, the hanging rope 4 on the safety net 3 is hung on the hanging piece 2, and the tensioning band 8 is fixed to the winding roller 7 by the locking piece. When tightening is required, the handle 15 is held and the pressure plate 17 is pressed. The pressure plate 17 drives the locking block 19 to disengage from the tooth 13, thereby releasing the lock on the turntable 14. The turntable 14 is rotated, and the turntable 14 drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the winding roller 7 to rotate. The winding roller 7 synchronously winds up and tightens the tensioning bands 8 on the two safety nets 3, so that the two safety nets 3 can be tightened at the same time. After tightening, the pressure plate 17 is released, and the spring 18 drives the locking block 19 to engage between the two teeth 13 to lock the turntable 14. The winding roller 7 can also wind up and store the two safety nets 3.
[0050] It should be noted that in this application, "multiple" means at least two; "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the method, article, or apparatus that includes that element.
[0051] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0053] This application uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, various modifications, combinations, sub-combinations, and substitutions can be made without departing from the principles of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A device for assisting in tightening safety nets in cellars, characterized in that, include: The cellar (1), safety net (3), tensioning mechanism and tensioning belt (8), Two safety nets (3) are symmetrically laid above the cellar (1), and the tensioning mechanism is located between the two safety nets (3); One end of the tensioning band (8) is connected to the safety net (3) near the pulling mechanism, and the other end of the tensioning band (8) is connected to the tensioning mechanism; The tensioning straps (8) located on the two safety nets (3) are symmetrically arranged on the upper and lower sides of the pulling mechanism, respectively; Rotating the pulling mechanism causes the tensioning straps (8) on the two safety nets (3) to be simultaneously wound up and tightened, thus enabling the two safety nets (3) to be simultaneously tightened or wound up and stored.
2. The auxiliary tensioning device for the safety net of the pit as described in claim 1, characterized in that, The tensioning mechanism includes a mounting base (5), a rotating shaft (6), and a take-up roller (7). The mounting base (5) is symmetrically fixedly connected to the cellar (1), and the rotating shaft (6) is rotatably connected between the two mounting bases (5). A winding roller (7) is sleeved on the rotating shaft (6), and a tensioning belt (8) is connected to the winding roller (7).
3. The auxiliary tensioning device for the safety net of the pit as described in claim 2, characterized in that, A locking assembly is connected between the rotating shaft (6) and the two mounting bases (5) to restrict the rotation of the rotating shaft (6).
4. The auxiliary tensioning device for the safety net of the pit as described in claim 3, characterized in that, The locking assembly includes a fixing tube (12) fixedly connected to the mounting base (5), and a plurality of locking teeth (13) are evenly connected to the inner wall of the fixing tube (12).
5. The auxiliary tensioning device for the safety net of the pit as described in claim 4, characterized in that, A turntable (14) is fixedly sleeved on the rotating shaft (6), and a locking block (19) corresponding to the locking tooth (13) is provided on the turntable (14) for locking the turntable (14).
6. The auxiliary tensioning device for the safety net of the pit as described in claim 5, characterized in that, A handle (15) is fixedly connected to the turntable (14). Two through holes are opened on the handle (15), and a sliding rod (16) is movably inserted into the through holes. The same pressure plate (17) is fixedly connected to the two sliding rods (16). Two springs (18) are fixedly connected between the pressure plate (17) and the handle (15). The locking block (19) is connected to the turntable (14) through the pressure plate (17). When the pressure plate (17) is pressed, the pressure plate (17) can drive the locking block (19) to cooperate with the locking teeth (13).
7. The auxiliary tensioning device for the safety net of the pit as described in claim 2, characterized in that, Multiple hanging parts (2) are fixedly connected around the cellar (1), and multiple hanging ropes (4) are fixedly connected to the edge of the safety net (3); when in use, the hanging ropes (4) on the safety net (3) can be movably sleeved on the hanging parts (2).
8. The auxiliary tensioning device for the safety net of the pit as described in claim 7, characterized in that, The hanging piece (2) includes a fixed rod (20) fixedly connected to the cellar (1), and a limiting rod (21) fixedly connected to the upper end of the fixed rod (20). The hanging rope (4) is sleeved on the fixed rod (20), and the limiting rod (21) can prevent the hanging rope (4) from falling off.
9. The auxiliary tensioning device for the safety net of the pit as described in claim 8, characterized in that, The upper side of the cellar (1) is provided with multiple hidden grooves (25), and the fixing rod (20) is located in the hidden grooves (25).
10. The auxiliary tensioning device for the safety net of the pit as described in claim 2, characterized in that, The tension band (8) is fixed to the take-up roller (7) by a locking member. The locking component includes a screw (23) and a locking nut (24). Coaxial pin holes (22) are opened on the take-up roller (7) and the rotating shaft (6). The screw (23) is movably inserted into the pin holes (22). The locking nuts (24) are connected to both ends of the screw (23). The tension band (8) is fixed by the cooperation between the locking nuts (24) and the screw (23).
11. The auxiliary tensioning device for the safety net of the pit as described in any one of claims 2-6, characterized in that, A fixing plate (9) is fixedly connected to the mounting base (5), and the same mounting shaft (10) is fixedly connected between the two fixing plates (9). A limiting rotating cylinder (11) is movably sleeved outside the mounting shaft (10). The limiting rotating cylinder (11) is located above the safety net (3) and fits against the safety net (3) to limit the safety net (3).
12. The auxiliary tensioning device for the safety net of the pit as described in claim 6, characterized in that, An anti-detachment block (26) is fixedly connected to the end of the sliding rod (16) away from the pressure plate (17). The diameter of the anti-detachment block (26) is larger than the diameter of the through hole to prevent the sliding rod (16) from detaching from the handle (15).