Elastic buffer structure and anti-falling net rapid unfolding device

Abstract

The utility model relates to the technical field of anti-falling net quick unfolding devices, in particular to an elastic buffer structure and an anti-falling net quick unfolding device, which comprise two groups of unfolding rods, two groups of hydraulic tappet mechanisms are arranged between the two groups of unfolding rods; the anti-falling net has the beneficial effects that the pull rod can extend out of the buffer cavity by a certain distance, the buffer spring is compressed, the buffer spring generates thrust far away from the anti-falling net on the spring plate under the elastic action of the buffer spring, and the thrust can be transmitted to the anti-falling net through the pull rod and the anti-falling net quick replacement assembly and is converted into pulling force for unfolding the anti-falling net; therefore, under the buffering of the elastic effect of the buffering spring, after the anti-falling net is rapidly unfolded, it can be ensured that the anti-falling net is completely unfolded, too large pulling force cannot be generated on the anti-falling net, and meanwhile after a person falls to the top end of the anti-falling net, buffering can be provided for the anti-falling net again through further compression of the buffering spring.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-falling net rapid deployment devices, in particular to an elastic buffer structure and an anti-falling net rapid deployment device. Background Art

[0002] The anti-fall net is an emergency rescue device. When someone is about to fall from a high school, the anti-fall net is laid under the person who is about to fall and unfolded. When the person falls, the soft anti-fall net catches the falling person and prevents him from falling directly on the hard ground, thereby achieving the purpose of reducing the injuries suffered by the falling person.

[0003] In the prior art, the deployment of the anti-fall net is generally accomplished by multiple personnel pulling the corners of the anti-fall net and then spreading it out to the surroundings, thereby straightening the anti-fall net.

[0004] However, in the prior art, when the force used to pull the anti-fall net is too small, the anti-fall net may easily slip out of the hands of the person who falls on it, or the anti-fall net may not be fully deployed, resulting in the fallen person still being in contact with the ground and causing serious injuries. When the force used to pull the anti-fall net is too large, the anti-fall net lacks a buffer structure, which will cause the pulling force used to deploy the anti-fall net to directly act on the anti-fall net. When the pulling force on the anti-fall net is too large, it is easy to tear. Utility Model Content

[0005] The utility model aims to provide an elastic buffer structure and a fast deployment device for an anti-falling net, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elastic buffer structure, comprising: an unfolding rod, wherein two groups of unfolding rods are provided, two groups of hydraulic push rod mechanisms are provided between the two groups of unfolding rods, a buffer sleeve is fixed on the surface of the unfolding rod, a buffer cavity is opened on the surface of the buffer sleeve, one end of a pull rod is movably inserted in the buffer cavity, a spring plate is fixed on the end of the pull rod extending into the buffer cavity, a buffer spring is sleeved on the rod body of the pull rod, an anti-fall net quick replacement assembly is provided at the other end of the pull rod, an anti-fall net quick replacement assembly is provided at the other end of the anti-fall net quick replacement assembly, four groups of anti-fall net quick replacement assemblies are provided, and the four groups of anti-fall net quick replacement assemblies are evenly distributed on the two end surfaces of the anti-fall net facing the unfolding rod.

[0007] Preferably, one end of the buffer spring abuts against the surface of the spring plate, and the other end of the buffer spring abuts against the inner wall of the buffer cavity.

[0008] Preferably, the anti-fall net quick replacement assembly includes: a lock buckle and a pull ring, the lock buckle is fixed on the surface of one end of the pull rod extending out of the buffer cavity, the pull ring is fixed on the surface of the anti-fall net, the lock buckle is a rectangular ring structure, a lock buckle opening is provided at the top of the lock buckle, the pull ring is also a rectangular ring structure, and the pull ring passes through the lock buckle opening and is sleeved on a vertical rod of the lock buckle.

[0009] Preferably, a locking rod mounting groove is opened on the surface of the lock buckle, one end of the locking rod is movably inserted in the locking rod mounting groove, a locking spring is fixed between the end of the locking rod extending into the locking rod mounting groove and the inner wall of the locking rod mounting groove, and the other end of the locking rod is movably inserted in the lock buckle opening.

[0010] Preferably, a lever window is provided at the top of the lock catch, a lever is slidably connected in the lever window, the lever is connected to the locking rod installation groove, and the bottom end of the lever is fixed on the surface of the locking rod.

[0011] Preferably, two groups of support rods are fixed below each group of the deployment rods, the two groups of support rods are symmetrically distributed about the deployment rods, and rollers are arranged below the support rods.

[0012] A fast deployment device for a fall prevention net comprises the elastic buffer structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The elastic buffer structure and anti-fall net quick deployment device proposed by the utility model have a pull rod that can extend a part of the buffer cavity to compress the buffer spring, and the buffer spring generates a thrust on the spring plate away from the anti-fall net under the action of its own elasticity. This thrust can be transmitted to the anti-fall net through the pull rod and the anti-fall net quick replacement component, thereby being converted into a pulling force to deploy the anti-fall net. Therefore, under the buffering of the elastic action of the buffer spring, when the anti-fall net is quickly deployed, it can ensure that the anti-fall net is fully deployed without generating excessive pulling force on the anti-fall net. At the same time, after a person falls on the top of the anti-fall net, further compression of the buffer spring can provide buffering for the anti-fall net again, and the diameter of the spring plate is smaller than the diameter of the opening of the buffer cavity on the buffer sleeve, so that the anti-fall net will not bend excessively and cause the person who falls on the anti-fall net to touch the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0018] In the figure: hydraulic tappet mechanism 1, deployment rod 2, buffer sleeve 3, buffer cavity 4, pull rod 5, spring plate 6, buffer spring 7, lock 8, lock opening 9, locking rod 10, locking rod mounting groove 11, locking spring 12, lever window 13, lever 14, pull ring 15, anti-fall net 16. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0020] Embodiment 1

[0021] See also Figures 1 to 3 The utility model provides a technical solution: an elastic buffer structure, comprising: an expansion rod 2, the expansion rod 2 is provided with two groups, two groups of hydraulic push rod mechanisms 1 are arranged between the two groups of expansion rods 2, a buffer sleeve 3 is fixed on the surface of the expansion rod 2, a buffer cavity 4 is opened on the surface of the buffer sleeve 3, one end of a pull rod 5 is movably inserted in the buffer cavity 4, and a spring plate 6 is fixed on the end of the pull rod 5 extending into the buffer cavity 4. A buffer spring 7 is sleeved on the rod body of the pull rod 5, and an anti-falling net quick replacement component is provided at the other end of the anti-falling net quick replacement component. An anti-falling net 16 is provided at the other end of the anti-falling net quick replacement component. Four groups of anti-falling net quick replacement components are arranged, and four groups of anti-falling net quick replacement components are evenly distributed on the two end surfaces of the anti-falling net 16 facing the expansion rod 2. One end of the buffer spring 7 is against the surface of the spring plate 6, and the other end of the buffer spring 7 is against the inner wall of the buffer cavity 4. Two groups of support rods are fixed below each group of expansion rods 2, and the two groups of support rods are symmetrically distributed about the expansion rod 2, and rollers are arranged below the support rods.

[0022] When the operator visually observes that the anti-fall net 16 has been fully extended, the distance between the two groups of deployment rods 2 will increase rapidly, thereby completing the rapid deployment of the anti-fall net 16. The operator can quickly control the hydraulic push rod mechanism 1 to stop extending after visually observing that the anti-fall net 16 has been extended. In this way, it can be ensured that the anti-fall net 16 is fully deployed. When deploying, the deployment rod 2 drives the buffer sleeve 3 fixed on its surface to move in the same direction. The buffer sleeve 3 pushes the anti-fall net 16 to move in the same direction through the buffer spring 7. The anti-fall net 16 drives the anti-fall net quick replacement component to move in the same direction through the pull rod 5. The anti-fall net quick replacement component drives the two ends of the anti-fall net 16 away from each other, thereby deploying the anti-fall net 16. Because the staff stops the operation of the hydraulic push rod mechanism 1 only after visually observing that the anti-fall net 16 has been fully deployed, after the hydraulic push rod mechanism 1 stops, the distance between the two groups of deployment rods 2 must be greater than the distance that just allows the anti-fall net 16 to be deployed. The distance required for the net 16 to be fully deployed is slightly larger. At this time, the pull rod 5 can extend a part of the buffer cavity 4, so that the buffer spring 7 is compressed. Under the action of its own elasticity, the buffer spring 7 generates a thrust on the spring plate 6 away from the anti-fall net 16. This thrust can be transmitted to the anti-fall net 16 through the pull rod 5 and the anti-fall net quick replacement component, thereby being converted into a pulling force to deploy the anti-fall net 16. Therefore, under the buffering of the elastic action of the buffer spring 7, when the anti-fall net 16 is quickly deployed, it can ensure that the anti-fall net 16 is fully deployed without generating excessive pulling force on the anti-fall net 16. At the same time, after a person falls on the top of the anti-fall net 16, the further compression of the buffer spring 7 can provide buffering for the anti-fall net 16 again, and the diameter of the spring plate 6 is smaller than the diameter of the opening of the buffer cavity 4 set on the buffer sleeve 3, so that the anti-fall net 16 will not bend excessively and cause the person falling on the anti-fall net 16 to touch the ground.

[0023] Embodiment 2

[0024] On the basis of Example 1, in order to realize the quick replacement of the anti-fall net 16, the other end of the pull rod 5 is provided with an anti-fall net quick replacement component, and the other end of the anti-fall net quick replacement component is provided with an anti-fall net 16, and the anti-fall net quick replacement component includes: a lock buckle 8 and a pull ring 15, the lock buckle 8 is fixed on the surface of one end of the pull rod 5 extending out of the buffer cavity 4, and the pull ring 15 is fixed on the surface of the anti-fall net 16, the lock buckle 8 is a rectangular ring structure, and a lock buckle opening 9 is opened at the top of the lock buckle 8, and the pull ring 15 is also a rectangular ring structure, and the pull ring 15 passes through the lock buckle opening 9 and is sleeved on a vertical rod of the lock buckle 8.

[0025] A lock opening 9 is provided at the top of the lock buckle 8, and a pull ring 15 is fixed on the surface of the anti-fall net 16. The installation of the anti-fall net 16 is completed by passing the pull ring 15 through the lock buckle opening 9 and sleeved on a vertical rod of the lock buckle 8. When the anti-fall net 16 needs to be replaced, it is only necessary to remove all the pull rings 15 from the vertical rods of the lock buckle 8 in turn, and then sleeve each pull ring 15 on the new anti-fall net 16 on a vertical rod of each group of lock buckles 8 in turn to complete the quick replacement of the anti-fall net 16.

[0026] Embodiment 3

[0027] On the basis of Example 2, in order to prevent the pull ring 15 from falling off the lock buckle 8 when the anti-fall net 16 is not replaced, a locking rod mounting groove 11 is opened on the surface of the lock buckle 8, and one end of the locking rod 10 is movably inserted in the locking rod mounting groove 11, and a locking spring 12 is fixed between one end of the locking rod 10 extending into the locking rod mounting groove 11 and the inner wall of the locking rod mounting groove 11, and the other end of the locking rod 10 is movably inserted in the lock buckle opening 9.

[0028] A locking rod mounting groove 11 is provided on the surface of the lock buckle 8, one end of the locking rod 10 extends into the locking rod mounting groove 11, and the other end is movably inserted in the lock buckle opening 9, and a locking spring 12 is fixed between the locking rod 10 and the inner wall of the locking rod mounting groove 11. The locking spring 12 generates an outward thrust on the locking rod 10 under the action of its own elasticity. This thrust causes the locking rod 10 to be pressed against the vertical rod of the lock buckle 8, so that the locking rod 10 has a blocking effect on the lock buckle opening 9, thereby preventing the pull ring 15 from falling off the lock buckle 8 when the anti-fall net 16 is not replaced.

[0029] Embodiment 4

[0030] On the basis of Example 3, in order to release the blocking of the lock opening 9 by the locking rod 10 when the anti-fall net 16 needs to be replaced, a lever window 13 is opened at the top of the lock 8, and a lever 14 is slidably connected in the lever window 13. The lever 14 is connected to the locking rod mounting groove 11, and the bottom end of the lever 14 is fixed on the surface of the locking rod 10.

[0031] When it is desired to release the blocking of the lock opening 9 by the locking rod 10, it is only necessary to push the lever 14 to make the lever 14 move in the lever window 13 in the direction away from the lock opening 9. The lever 14 drives the locking rod 10 to move in the same direction, so that the locking rod 10 can be completely retracted into the locking rod installation groove 11 and withdrawn from the lock opening 9, thereby releasing the blocking of the lock opening 9 by the locking rod 10 when the anti-fall net 16 needs to be replaced.

[0032] During actual use, when the push rod of the hydraulic push rod mechanism 1 is quickly extended, the distance between the two sets of deployment rods 2 is rapidly increased, thereby completing the rapid deployment of the anti-fall net 16. The operator can quickly control the push rod of the hydraulic push rod mechanism 1 to stop extending after visually observing that the anti-fall net 16 is stretched out. In this way, it can be ensured that the anti-fall net 16 is fully deployed. During deployment, the deployment rod 2 drives the buffer sleeve 3 fixed on its surface to move in the same direction. The buffer sleeve 3 pushes the anti-fall net 16 to move in the same direction through the buffer spring 7. The anti-fall net 16 drives the anti-fall net quick replacement component to move in the same direction through the pull rod 5. The anti-fall net quick replacement component drives the two ends of the anti-fall net 16 away from each other, thereby deploying the anti-fall net 16. Because the staff is visually The operation of the hydraulic push rod mechanism 1 is stopped only after it detects that the anti-fall net 16 has been fully deployed. Therefore, after the hydraulic push rod mechanism 1 stops, the distance between the two sets of deployment rods 2 must be slightly larger than the distance required for the anti-fall net 16 to be fully deployed. At this time, the pull rod 5 can extend a part of the buffer cavity 4 to compress the buffer spring 7. The buffer spring 7 generates a thrust on the spring plate 6 away from the anti-fall net 16 under its own elastic action. This thrust can be transmitted to the anti-fall net 16 through the pull rod 5 and the anti-fall net quick replacement component, thereby being converted into a pulling force to deploy the anti-fall net 16. Therefore, under the buffering of the elastic action of the buffer spring 7, when the anti-fall net 16 is quickly deployed, it can be ensured that the anti-fall net 16 is fully deployed without The anti-fall net 16 will generate excessive pulling force on the anti-fall net 16. At the same time, after the person falls on the top of the anti-fall net 16, the further compression of the buffer spring 7 can provide buffering for the anti-fall net 16 again, and the diameter of the spring plate 6 is smaller than the diameter of the opening of the buffer cavity 4 on the buffer sleeve 3, so that the anti-fall net 16 will not bend excessively and cause the person falling on the anti-fall net 16 to touch the ground; a lock buckle opening 9 is provided at the top of the lock buckle 8, and a pull ring 15 is fixed on the surface of the anti-fall net 16. The installation of the anti-fall net 16 is completed by passing the pull ring 15 through the lock buckle opening 9 and being sleeved on a vertical rod of the lock buckle 8. When the anti-fall net 16 needs to be replaced, it is only necessary to remove all the pull rings 15 from the vertical rod of the lock buckle 8 in turn, and then replace the new one. The various pull rings 15 on the anti-falling net 16 are sequentially sleeved on a vertical rod of each group of lock buckles 8 to complete the quick replacement of the anti-falling net 16; a locking rod installation groove 11 is provided on the surface of the lock buckle 8, one end of the locking rod 10 extends into the locking rod installation groove 11, and the other end is movably inserted into the lock buckle opening 9, and a locking spring 12 is fixed between the locking rod 10 and the inner wall of the locking rod installation groove 11. The locking spring 12 generates an outward thrust on the locking rod 10 under its own elastic action. This thrust causes the locking rod 10 to be pressed against the vertical rod of the lock buckle 8, so that the locking rod 10 has a blocking effect on the lock buckle opening 9, thereby preventing the pull ring 15 from falling off the lock buckle 8 when the anti-falling net 16 is not replaced;To release the blocking of the lock opening 9 by the locking rod 10, it is only necessary to push the lever 14 so that the lever 14 moves in the lever window 13 in a direction away from the lock opening 9, and the lever 14 drives the locking rod 10 to move in the same direction, so that the locking rod 10 can be completely retracted into the locking rod installation groove 11 and withdrawn from the lock opening 9, thereby releasing the blocking of the lock opening 9 by the locking rod 10 when the anti-fall net 16 needs to be replaced.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic buffer structure, comprising: An unfolding rod (2) is characterized in that: the unfolding rod (2) is provided with two groups, two groups of hydraulic push rod mechanisms (1) are provided between the two groups of unfolding rods (2), a buffer sleeve (3) is fixed on the surface of the unfolding rod (2), a buffer cavity (4) is opened on the surface of the buffer sleeve (3), one end of a pull rod (5) is movably inserted in the buffer cavity (4), a spring plate (6) is fixed on the end of the pull rod (5) extending into the buffer cavity (4), a buffer spring (7) is sleeved on the rod body of the pull rod (5), the other end of the pull rod (5) is provided with an anti-fall net quick replacement component, the other end of the anti-fall net quick replacement component is provided with an anti-fall net (16), four groups of anti-fall net quick replacement components are provided, and the four groups of anti-fall net quick replacement components are evenly distributed on the two end surfaces of the anti-fall net (16) facing the unfolding rod (2).

2. An elastic buffer structure according to claim 1, characterized in that: One end of the buffer spring (7) abuts against the surface of the spring plate (6), and the other end of the buffer spring (7) abuts against the inner wall of the buffer cavity (4).

3. The elastic buffer structure according to claim 1, characterized in that: The anti-fall net quick replacement component comprises: a lock buckle (8) and a pull ring (15), wherein the lock buckle (8) is fixed on the surface of one end of the pull rod (5) extending out of the buffer cavity (4), and the pull ring (15) is fixed on the surface of the anti-fall net (16), the lock buckle (8) is a rectangular ring structure, and a lock buckle opening (9) is provided at the top of the lock buckle (8), and the pull ring (15) is also a rectangular ring structure, and the pull ring (15) passes through the lock buckle opening (9) and is sleeved on a vertical rod of the lock buckle (8).

4. The elastic buffer structure according to claim 3, characterized in that: A locking rod installation groove (11) is provided on the surface of the lock buckle (8), one end of the locking rod (10) is movably inserted in the locking rod installation groove (11), a locking spring (12) is fixed between the end of the locking rod (10) extending into the locking rod installation groove (11) and the inner wall of the locking rod installation groove (11), and the other end of the locking rod (10) is movably inserted in the lock buckle opening (9).

5. The elastic buffer structure according to claim 4, characterized in that: A lever window (13) is provided at the top of the lock buckle (8), a lever (14) is slidably connected in the lever window (13), the lever (14) is connected to the locking rod installation groove (11), and the bottom end of the lever (14) is fixed on the surface of the locking rod (10).

6. The elastic buffer structure according to claim 1, characterized in that: Two groups of support rods are fixed below each group of the deployment rods (2), the two groups of support rods are symmetrically distributed about the deployment rods (2), and rollers are arranged below the support rods.

7. A rapid deployment device for an anti-falling net, characterized in that: The elastic buffer structure comprises the elastic buffer structure as described in any one of claims 1 to 6.

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