Liftable recovery type warning chain

Abstract

The utility model provides a liftable recoverable warning chain which comprises a chassis, a telescopic assembly and a connecting shaft, the telescopic assembly comprises an ejector rod and a sleeve, one end of the sleeve is fixedly connected to the chassis, one end of the ejector rod is embedded into the end, away from the chassis, of the sleeve to slide, and the connecting shaft is inserted into the end, away from the sleeve, of the ejector rod. The warning chain has the advantages that the flexibility of the warning chain is improved, and the warning effect of the warning chain is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of warning equipment, in particular to a liftable and retractable warning chain. Background Art

[0002] At present, in construction sites, since there are many large-scale machinery working on the construction sites, in order to prevent irrelevant personnel from entering the construction sites and reduce the occurrence of safety accidents, warning chains are usually set up in various edge areas of the construction sites to play a role of isolation and warning.

[0003] In the related art, the warning chain generally includes two fixed columns and a chain. The fixed columns are installed at the boundary points of the construction site, and the two ends of the chain are respectively connected to the fixed columns on both sides to form a warning line.

[0004] Regarding the above-mentioned related technologies, in an uneven construction site, the ground height of the critical point of the construction site may be different, and the height of the fixed columns at both ends is fixed, which makes the limit height of the warning chain uneven, prone to loopholes, and difficult to play a role in restriction and isolation, reducing the warning effect. Therefore, there is a problem that the warning chain is not flexible enough and the warning effect is poor.

[0005] In view of this, it is indeed necessary to provide a technical solution of a liftable and retractable warning chain to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a retractable warning chain to solve the problem that the warning chain is not flexible enough and the warning effect is not good.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions for a retractable warning chain:

[0008] A liftable and retractable warning chain comprises a chassis, a telescopic assembly and a connecting shaft, the telescopic assembly comprises a push rod and a sleeve, one end of the sleeve is fixedly connected to the chassis, one end of the push rod is embedded in the end of the sleeve away from the chassis and slides, the connecting shaft is inserted into the end of the push rod away from the sleeve, a rotating bearing is sleeved on the circumferential side of the connecting shaft, a buckle is arranged on the circumferential side of the rotating bearing, and a chain is detachably connected to the buckle.

[0009] As an optimization of a liftable and retractable warning chain, limiting holes are provided on the top rod and the sleeve, and the telescopic assembly also includes a limiting rod. When the limiting hole on the top rod is aligned with the limiting hole on the sleeve, the limiting rod is inserted into the two limiting holes.

[0010] As an optimization of the liftable and retractable warning chain, limit plates are provided at both ends of the connecting shaft, the rotating bearing is located between the two limit plates, and the chain is wound around the circumference of the rotating bearing.

[0011] As an optimization of a liftable and retractable warning chain, a hook is provided on the chain, and a warning sign is detachably connected to the hook.

[0012] As an optimization of a liftable and retractable warning chain, a hanging ring is provided at one end of the connecting shaft away from the top rod, and a light strip is hung on the hanging ring.

[0013] As an optimization of the liftable and retractable warning chain, a fixing hole is provided on the chassis, and a fixing bolt is provided on the chassis, and the fixing bolt is passed through the fixing hole.

[0014] Compared with the prior art, the beneficial effect of the utility model is that when it is necessary to pull the warning chain, the height of the connecting shaft is adjusted by sliding the top rod relative to the sleeve, so that the connecting shafts at different critical points on the construction site are the same, and the two ends of the chain are respectively connected to the buckles on the circumference of the two connecting shafts, and the chain is erected flatly between the two connecting shafts, so that the height of the chain can be flexibly adjusted, so that the restricted height of the chain at various locations is more uniform, which is conducive to reducing loopholes and improving the warning effect. When the warning chain is not needed, the connection between one end of the chain and the buckle on one connecting shaft is untied, and the other connecting shaft is driven to rotate relative to the top rod. The buckle of the connecting shaft drives the chain to wrap around the circumference of the connecting shaft, so that the chain is easy to store and adjust, which is conducive to improving the storage flexibility of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of a liftable and retractable warning chain according to an embodiment of the present application.

[0017] In the figure: 1. chassis; 11. fixing hole; 2. telescopic assembly; 21. push rod; 211. boss; 22. sleeve; 23. limit rod; 24. limit hole; 3. connecting shaft; 31. rotating bearing; 32. buckle; 33. hanging ring; 4. chain; 41. loose buckle; 5. fixing bolt; 6. hook; 7. warning sign; 8. limit plate; 9. light strip. DETAILED DESCRIPTION

[0018] In order to make the technical solution and advantages of the utility model clearer, the utility model and its beneficial effects will be further described in detail below in combination with specific implementation methods and drawings of the specification, but the implementation methods of the utility model are not limited thereto.

[0019] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0021] The following is combined with Figure 1 , further details of this application are given.

[0022] The present application provides a retractable warning chain, which adopts the following technical solution:

[0023] Reference Figure 1 The warning chain includes a chassis 1, a telescopic assembly 2 and a connecting shaft 3. The chassis 1 is a disc installed on the ground as a carrier. Further, a fixing hole 11 is opened on the chassis 1, and a fixing bolt 5 is installed on the chassis 1. The fixing bolt 5 passes through the fixing hole 11 and is fixedly connected to the ground, thereby improving the stability of the chassis 1.

[0024] Reference Figure 1 The telescopic assembly 2 includes a push rod 21 and a sleeve 22. The diameter of the push rod 21 is smaller than the inner diameter of the sleeve 22. The bottom end of the push rod 21 is embedded in the sleeve 22 and slides. The bottom end of the sleeve 22 is welded to the chassis 1. The push rod 21 slides relative to the sleeve 22. A boss 211 is integrally formed at the top of the push rod 21. The push rod 21 is plugged into the bottom end of the connecting shaft 3 through the boss 211, thereby adjusting the height of the connecting shaft 3. Further, in other embodiments, in order to extend the lifting height of the push rod 21, the sleeve 22 includes more than two sleeves 22, and the multiple sleeves 22 are nested and slide with each other. The inner diameters of the sleeves 22 increase one by one from bottom to top, and the push rod 21 is embedded in the sleeve 22 at the top.

[0025] Reference Figure 1 A rotating bearing 31 is sleeved on the circumferential side of the connecting shaft 3, and the rotating bearing 31 rotates around the connecting shaft 3. A buckle 32 is welded on the outer circumferential side of the rotating bearing 31, and a chain 4 is installed on the buckle 32. The end of the chain 4 is fixedly connected with a live buckle 41. The end of the chain 4 can be detachably installed on the buckle 32 through the live buckle 41, so as to facilitate the loading and unloading of the chain 4 on the connecting shaft 3, which is conducive to improving the flexibility of the installation of the chain 4.

[0026] Furthermore, the circumferential side of the push rod 21 and the circumferential side of the sleeve 22 are both provided with a limiting hole 24, the limiting hole 24 is a circular hole, and the telescopic assembly 2 further includes a limiting rod 23, the limiting rod 23 is a cylinder, and the shape of the limiting rod 23 matches the limiting hole 24. The push rod 21 slides relative to the sleeve 22, and when the limiting hole 24 of the push rod 21 is aligned with the limiting hole 24 of the sleeve 22, the limiting rod 23 is inserted into the two limiting holes 24 to limit the movement of the push rod 21 relative to the sleeve 22, thereby fixing the height of the push rod 21.

[0027] Furthermore, both upper and lower ends of the connecting shaft 3 are integrally formed with limit plates 8, which are disc-shaped. The rotating bearing 31 is located between the two limit plates 8, and the limit plates 8 at both ends and the rotating bearing 31 form a storage bin. The rotating bearing 31 is driven to rotate, and the chain 4 can be wound around the connecting shaft 3 between the two limit plates 8 (the winding state is not shown in the figure), so as to facilitate the storage of the chain 4 and improve the storage flexibility of the chain 4.

[0028] In a preferred embodiment of the present application, a plurality of hooks 6 are installed on the chain 4, and one side of the hook 6 includes a slit, through which a warning sign 7 can be passed through the hook 6, and the warning sign 7 with different text contents can be replaced according to the application scenario, and then the warning sign 7 is hung on the chain 4 through the hook 6, thereby making the chain 4 more eye-catching and helping to enhance the warning effect.

[0029] In a preferred embodiment of the present application, a hanging ring 33 is integrally formed at the top of the connecting shaft 3, and a light strip 9 is fixedly connected to the hanging ring 33. One end of the light strip 9 is fixedly connected to the hanging ring 33 of one connecting shaft 3, and the other end of the light strip 9 is fixedly connected to the hanging ring 33 of another connecting shaft 3. The light strip 9 is hung between the two connecting shafts 3, which can provide a lighting effect on the one hand and enhance the night warning effect on the other.

[0030] The experimental principle of the embodiment of the present application is as follows: when it is necessary to pull the warning chain 4, the chassis 1 is firmly installed on the ground by the fixing bolts 5, the sleeve 22, the top rod 21 and the connecting shaft 3 are installed on the chassis 1 from bottom to top in sequence, and assembled into a column, and the two columns are placed at two different critical points on the construction site, and the two ends of the chain 4 are respectively connected to the buckle 32 on the side of the two connecting shafts 3 through the loose buckle 41, and according to the height of the ground, the top rod 21 is driven to slide and rise and fall relative to the sleeve 22 to adjust the height of the connecting shaft 3, and the chain 4 is straightened to make the limit height of each part of the chain 4 consistent, thereby improving the flexibility of the chain 4 and adapting to different construction site environments; at the same time, when the chain 4 is stored, the rotating bearing 31 is driven to rotate, and the chain 4 can be wound around the connecting shaft 3 between the two limit plates 8, thereby providing the flexibility of the chain 4 storage; in addition, the light strip 9 connected to the hanging ring 33 can increase the night lighting and warning effect, and the warning sign 7 is hung on the hook 6 to make the chain 4 more eye-catching, further enhancing the warning effect of the chain 4.

[0031] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A retractable warning chain, characterized in that: It includes a chassis, a telescopic component and a connecting shaft, the telescopic component includes a push rod and a sleeve, one end of the sleeve is fixedly connected to the chassis, one end of the push rod is embedded in the end of the sleeve away from the chassis and slides, the connecting shaft is inserted into the end of the push rod away from the sleeve, a rotating bearing is sleeved on the circumferential side of the connecting shaft, a buckle is set on the circumferential side of the rotating bearing, and a chain is detachably connected to the buckle.

2. The retractable warning chain according to claim 1, characterized in that: The push rod and the sleeve are both provided with limiting holes, and the telescopic assembly further comprises a limiting rod. When the limiting hole on the push rod is aligned with the limiting hole on the sleeve, the limiting rod is inserted into the two limiting holes.

3. The retractable warning chain according to claim 1 is characterized in that: Limiting plates are arranged at both ends of the connecting shaft, the rotating bearing is located between the two limiting plates, and the chain is arranged around the circumference of the rotating bearing.

4. The retractable warning chain according to claim 1 is characterized in that: The chain is provided with a hook, and the hook is detachably connected with a warning sign.

5. The retractable warning chain according to claim 1 is characterized in that: A hanging ring is arranged at one end of the connecting shaft away from the top rod, and a light belt is hung on the hanging ring.

6. The retractable warning chain according to claim 1, characterized in that: The chassis is provided with a fixing hole, and the chassis is provided with a fixing bolt, and the fixing bolt is passed through the fixing hole.

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