CN112758590A - Buffer connecting device - Google Patents

Abstract

The invention relates to the technical field of cargo transportation, and discloses a buffer connecting device. When the object to be moved is moved, the first hook piece is connected with the object to be moved, the hook part of the second hook piece is connected with the traction mechanism, and the traction mechanism pulls the connecting assembly through the second hook piece to enable the object to be moved to be started, the elastic piece generates elastic deformation to absorb tension on the connecting assembly and convert the tension into elastic potential energy to be stored. In the process that the object to be moved moves, the elastic potential energy in the elastic part is gradually released, so that the connecting assembly can be prevented from generating large tension when being stressed suddenly, and the second hook-and-hook piece is prevented from being separated from the traction mechanism, so that the safety of an operator is ensured. Meanwhile, the reaction force of the connecting component borne by the traction mechanism is reduced, and the traction mechanism is protected from being damaged.

Description

Buffer connecting device

Technical Field

The invention relates to the technical field of cargo transportation, in particular to a buffer connecting device.

Background

In the production process of the container, after the box body is integrally assembled, the container needs to be moved from the previous station to the next station of the production line. When the container is moved, the hook at one end of the chain is connected with the container, the hook at the other end of the chain is connected with a circulating ground chain on a container production line, and the chain is pulled to drive the container to move after the circulating ground chain is started, so that the container is transported. However, because the weight of the container is large, when the container is pulled to start by the running circulating ground chain, the container is influenced by inertia, the chain is suddenly stressed, the hook connected with the circulating ground chain is easy to bounce due to the tension effect of the chain, and the chain is separated from the circulating ground chain, and the bounced hook easily causes personal injury to operators, so that safety accidents are caused. In addition, the chain is stressed suddenly and generates a large reaction force to the circulating ground chain, so that the power mechanism of the circulating ground chain is easily damaged in the past.

Disclosure of Invention

Based on the above problems, an object of the present invention is to provide a buffer connection device, which can buffer the tension of a connection assembly when the object to be moved is pulled, so as to ensure the personal safety of an operator, and at the same time, does not damage a traction mechanism.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cushioned connection arrangement comprising:

a first hook configured to be connected with a to-be-moved object;

a second hooking member including a hooking portion configured to be connected with the traction mechanism and a hand-held portion;

buffer structure, including continuous elastic component and coupling assembling, the elastic component cover is located coupling assembling is last, coupling assembling's one end with first hook spare is connected, the other end with second hook spare is connected, drive mechanism passes through hook portion pulling during coupling assembling, the elastic component produces elastic deformation, in order to absorb coupling assembling's tension changes into elastic potential energy and stores.

As a preferable scheme of the buffer connecting device of the present invention, the connecting assembly includes a fixing sleeve and a connecting rod disposed in the fixing sleeve, one end of the connecting rod extending out of the fixing sleeve is connected to the first hook, the other end of the connecting rod is in sliding fit with the fixing sleeve, and one end of the fixing sleeve, which is far away from the first hook, is connected to the second hook.

As a preferable scheme of the buffer connecting device of the present invention, the connecting assembly further includes a chain, and the chain is disposed between the first hooking member and the connecting rod, and/or the chain is disposed between the fixing sleeve and the second hooking member.

As a preferable scheme of the buffer connecting device of the present invention, the fixing sleeve is provided with a limiting groove, one end of the connecting rod located in the fixing sleeve is provided with a first stopping portion, and the first stopping portion is in sliding fit with the limiting groove.

As a preferable aspect of the buffer connecting device of the present invention, the elastic member is a compression spring, the compression spring is sleeved on the fixed sleeve, one end of the fixed sleeve, which is close to the first hooking member, is provided with a second stopper, one end of the compression spring abuts against the second stopper, and the other end of the compression spring abuts against the first stopper.

As a preferable scheme of the buffer connecting device of the present invention, the connecting assembly includes a hauling rope, a first pull ring and a second pull ring, the first pull ring is disposed at one end of the hauling rope, the second pull ring is disposed at the other end of the hauling rope, the first pull ring is connected to the first hooking member, and the second pull ring is connected to the second hooking member.

As a preferable scheme of the buffer connecting device of the present invention, the elastic member is a tension spring, the tension spring is sleeved on the pulling rope, the length of the pulling rope is greater than the length of the tension spring in a natural state, one end of the tension spring is connected to the first pull ring, and the other end of the tension spring is connected to the second pull ring.

As a preferable aspect of the buffer connecting device of the present invention, the connecting assembly further includes a chain, and the chain is disposed between the first hooking member and the first pull ring, and/or the chain is disposed between the second hooking member and the second pull ring.

As a preferable scheme of the buffer connecting device of the present invention, the second hook member further includes a first rod and a second rod connected to each other, the hook portion is disposed on the first rod, the first rod is disposed along a horizontal direction and connected to the connecting assembly, the second rod is disposed at an included angle with the first rod, the hand-held portion is an arc-shaped bending rod, one end of the bending rod is connected to the first rod, and the other end of the bending rod is connected to the second rod.

As a preferable scheme of the buffer connecting device of the present invention, the hooking portion includes a first limiting protrusion and a second limiting protrusion which are disposed on the first rod at an interval, the traction mechanism is provided with a clamping groove, and both the first limiting protrusion and the second limiting protrusion are clamped with the clamping groove.

The invention has the beneficial effects that:

the invention provides a buffer connecting device which comprises a first hook hanging piece, a second hook hanging piece and a buffer structure, wherein the buffer structure comprises an elastic piece and a connecting component which are connected, the elastic piece is sleeved on the connecting component, one end of the connecting component is connected with the first hook hanging piece, and the other end of the connecting component is connected with the second hook hanging piece. When the buffer connecting device is used for moving the object to be moved, the first hook hanger is connected with the object to be moved, the handheld part is held by a hand to connect the hook portion on the second hook hanger with the traction mechanism, and the traction mechanism pulls the connecting assembly through the second hook hanger to enable the object to be moved to be started, the elastic piece generates elastic deformation to absorb tension on the connecting assembly and convert the tension into elastic potential energy to be stored. In the process that the object to be moved moves, the elastic potential energy in the elastic part is gradually released, so that the connecting assembly can be prevented from generating large tension when being stressed suddenly, and the second hook-and-hook piece is prevented from being separated from the traction mechanism, so that the safety of an operator is ensured. Meanwhile, the reaction force of the connecting component borne by the traction mechanism is reduced, and the traction mechanism is protected from being damaged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first combination manner of a buffer connection device according to an embodiment of the present invention in a first view;

fig. 2 is a schematic structural diagram of a first combination manner of a buffer connection device according to an embodiment of the invention in a second view;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural diagram of a second combination of buffer connection devices according to an embodiment of the present invention in a first view;

fig. 5 is a schematic structural diagram of a second combination of buffer connection devices according to a first embodiment of the present invention in a second view;

fig. 6 is a schematic structural diagram of a third combination of buffer connection devices according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first combination manner of a buffer connection device according to a second embodiment of the present invention in a first view;

fig. 8 is a partial enlarged view at B in fig. 7;

fig. 9 is a schematic structural diagram of a first combination manner of the buffer connecting device according to the second embodiment of the present invention in a second view;

fig. 10 is a schematic structural diagram of a second combination manner of the buffer connecting device according to the second embodiment of the present invention;

fig. 11 is a schematic structural diagram of a third combination of buffer connection devices according to the second embodiment of the present invention.

In the figure:

1-a first hook member; 2-a second hook member; 3-a buffer structure;

21-a hand-held part; 22-a hook portion; 23-a first rod; 24-a second rod;

221-a first limit projection; 222-a second stop boss;

31-an elastic member; 32-a connecting assembly;

321-a fixed sleeve; 322-a connecting rod; 323-chain; 324-a pull cord; 325-a first tab; 326-a second tab;

3211-a limit groove; 3212-a second stop; 3221-first stop.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Example one

As shown in fig. 1 to 6, the present embodiment provides a buffer coupling device capable of buffering tension in a drag chain when a container is moved from an upper station to a lower station on a production line, the buffer coupling device including a first hooking member 1, a second hooking member 2 and a buffer structure 3.

Wherein the first hook 1 is configured to be connected with a to-be-moved object; the second hooking member 2 includes a hooking portion 22 and a holding portion 21, the hooking portion 22 being configured to be connected with the traction mechanism; the buffer structure 3 includes an elastic member 31 and a connection assembly 32 connected to each other, the elastic member 31 is sleeved on the connection assembly 32, one end of the connection assembly 32 is connected to the first hooking member 1, the other end of the connection assembly 32 is connected to the second hooking member 2, and when the traction mechanism pulls the connection assembly 32 through the hooking portion 22, the elastic member 31 generates elastic deformation to absorb the tension of the connection assembly 32 and convert the tension into elastic potential energy for storage.

When the buffering connection device provided by the embodiment is used, the first hook 1 is connected with the object to be moved, the holding part 21 is held by a hand to connect the hook part 22 on the second hook 2 with the traction mechanism, and the traction mechanism pulls the connection assembly 32 through the second hook 2 to enable the object to be moved to start, so that the elastic member 31 generates elastic deformation to absorb tension generated when the connection assembly 32 is stressed suddenly, and the tension is converted into elastic potential energy to be stored. In the process of moving the object to be moved, the elastic potential energy in the elastic member 31 is gradually released, so that the connecting assembly 32 can be prevented from generating large tension when being suddenly stressed, and the second hooking member 2 is prevented from being separated from the traction mechanism, so that the safety of an operator is ensured. Meanwhile, the reaction force of the connecting component 32 on the traction mechanism is reduced, and the traction mechanism is protected from being damaged.

As shown in fig. 1 to 3, optionally, the connection assembly 32 includes a fixed sleeve 321 and a connecting rod 322 disposed in the fixed sleeve 321, one end of the connecting rod 322 extending out of the fixed sleeve 321 is connected to the first hook 1, the other end of the connecting rod 322 is slidably fitted with the fixed sleeve 321, and one end of the fixed sleeve 321 far away from the first hook 1 is connected to the second hook 2. When the container is pulled by the traction mechanism through the buffer connection device, the second hook member 2 pulls the fixed sleeve 321, so that the connecting rod 322 slides in the fixed sleeve 321 in the direction away from the second hook member 2, and simultaneously the compression elastic member 31 deforms, so that the elastic member 31 stores energy. That is, the elastic deformation of the elastic member 31 absorbs the tension when the fixing sleeve 321 and the connecting rod 322 are suddenly stretched and stressed, and converts the tension into elastic potential energy, so as to avoid the generation of large tension when the connecting assembly 32 is suddenly stressed, thereby preventing the second hooking member 2 from being disengaged from the traction mechanism, and ensuring the safety of the operator.

Further, the connecting assembly 32 also includes a chain 323. As shown in fig. 1 and 2, in the present embodiment, chains 323 are preferably disposed between the first hooking member 1 and the connecting rod 322, and between the fixing sleeve 321 and the second hooking member 2. Make between first hook and hanger 1 and the connecting rod 322 to and be the flexonics between fixed sleeve 321 and the second hook and hanger 2, thereby can not restrict the relative distance of first hook and hanger 1 and second hook and hanger 2 and fixed sleeve 321, can adapt to the installation space of different intervals, convenient to use.

As shown in fig. 3, optionally, a limiting groove 3211 is disposed on the fixing sleeve 321, a first stopping portion 3221 is disposed at one end of the connecting rod 322 located in the fixing sleeve 321, and the first stopping portion 3221 is in sliding fit with the limiting groove 3211. In this embodiment, the first stopping portion 3221 forms an included angle of 90 degrees with the connecting rod 322, and the length thereof is greater than the diameter of the fixing sleeve 321, so as to prevent the connecting rod 322 from disengaging from the fixing sleeve 321. Preferably, the length of the limiting groove 3211 is about half of the length of the fixing sleeve 321, so that the moving distance of the first stopping portion 3221 relative to the fixing sleeve 321 can be limited, and the elastic member 31 is prevented from being damaged due to over compression.

In this embodiment, optionally, the elastic element 31 is a pressure spring, the pressure spring is sleeved on the fixed sleeve 321, one end of the fixed sleeve 321 close to the first hooking member 1 is provided with a second stopping portion 3212, one end of the pressure spring abuts against the second stopping portion 3212, and the other end abuts against the first stopping portion 3221. By providing the first stopper 3221 and the second stopper 3212, the pressure spring can be restrained on the fixed sleeve 321, and when the connecting rod 322 moves relative to the fixed sleeve 321, compression energy storage of the pressure spring is achieved.

In other embodiments, as shown in fig. 4 and 5, a chain 323 may be provided only between the first hooking member 1 and the connecting rod 322. At this time, the fixing sleeve 321 is disposed on the first rod 23 of the second hook member 2, the second stopper portion 3212 on the fixing sleeve 321 is fixedly connected to the first rod 23, and one end of the fixing sleeve 321 away from the first hook member 1 is fixedly connected to the handle portion 21. When the fixing sleeve 321 is pulled, the connecting rod 322 slides relative to the fixing sleeve 321, thereby compressing the elastic member 31, and also performing a buffering function.

In another embodiment, as shown in fig. 6, a chain 323 may be provided only between the second hooking member 2 and the fixing sleeve 321, and the connecting rod 322 is directly connected to the first hooking member 1. When the traction mechanism pulls the container through the buffer connecting device, the buffer function can be achieved in the same way.

In the actual use of the damping connection device, the engagement form of the connection assembly 32 may be set as needed, and the damping connection device is not limited to the above-mentioned engagement form, as long as the damping function is achieved.

As shown in fig. 1 to 6, optionally, the second hooking member 2 further includes a first rod 23 and a second rod 24 connected to each other, the hooking portion 22 is disposed on the first rod 23, the first rod 23 is disposed along a horizontal direction and connected to the connecting assembly 32, the second rod 24 is disposed at an included angle with respect to the first rod 23, the holding portion 21 is an arc-shaped bending rod, one end of the bending rod is connected to the first rod 23, and the other end of the bending rod is connected to the second rod 24. In this embodiment, the arc-shaped portion of the arc-shaped bending rod protrudes in the direction away from the first rod 23, so that when the buffer connecting device is used, the hand-held portion 21 can be conveniently held to apply an acting force, and the hooking portion 22 on the second hooking member 2 is connected with the traction mechanism.

Optionally, the hooking portion 22 includes a first limiting protrusion 221 and a second limiting protrusion 222 that are disposed on the first rod 23 at intervals, a clamping groove is disposed on the traction mechanism, and the first limiting protrusion 221 and the second limiting protrusion 222 are both clamped with the clamping groove. In this embodiment, preferably, the traction mechanism is a circulating ground chain in a container production workshop, and the clamping groove is a link of the circulating ground chain. When the buffer connecting device is installed, the first limiting protrusion 221 and the second limiting protrusion 222 of the hook part 22 are clamped with the chain buckle of the circulating ground chain, so that the connection of the second hooking part 2 and the circulating ground chain is completed.

When the buffer connecting device provided by the embodiment is used, the first hook 1 is hooked in the corner piece hole on the container, and then the hand-held part 21 is held by hand to clamp the hook part 22 on the second hook 2 with the chain buckle of the circulating ground chain. Then, the endless chain is started, which pulls the fixing sleeve 321 via the second hook member 2 and the chain 323, so that the connecting rod 322 slides within the fixing sleeve 321 in a direction away from the second hook member 2. Meanwhile, the first stopping portion 3221 and the second stopping portion 3212 compress the elastic member 31 to deform, so that the elastic member 31 absorbs the tension generated when the chain 323, the connecting rod 322 and the fixing sleeve 321 are suddenly stressed, and converts the tension into elastic potential energy to be stored, and the elastic potential energy in the elastic member 31 is gradually released in the process of pulling the container to operate. That is, the elastic member 31 can buffer the stress of the second hook member 2, the chain 323, the connecting rod 322 and the fixing sleeve 321, thereby avoiding the second hook member 2 from separating from the circulating ground chain due to sudden stress, ensuring the stable operation of the container, eliminating potential safety hazards and preventing operators from being injured. Moreover, the reaction force of the second hook member 2 on the circulating ground chain can be reduced, and the power mechanism of the circulating ground chain can be protected.

The buffer connecting device provided by the embodiment is not limited to be used for moving the container, and can be used for other objects needing to be moved. When can be applicable to two or a plurality of object global movement, connection between two liang to tension that connecting device received when buffering global movement guarantees that global movement is steady.

Example two

As shown in fig. 7 to 11, the present embodiment provides a buffer connecting device, wherein the same or corresponding parts as or to the first embodiment are designated by the same reference numerals as the first embodiment. For simplicity, only the difference between the second embodiment and the first embodiment will be described, in that in the present embodiment, the connecting assembly 32 optionally includes a pulling rope 324, a first pulling ring 325 and a second pulling ring 326, the first pulling ring 325 is disposed at one end of the pulling rope 324, the second pulling ring 326 is disposed at the other end of the pulling rope 324, the first pulling ring 325 is connected with the first hooking member 1, and the second pulling ring 326 is connected with the second hooking member 2. When the container is pulled by the traction mechanism through the buffer connecting device, the first hook 1 is connected with the container, the traction mechanism is connected with the second hook 2, and when the second hook 2 is pulled by the traction mechanism, the elastic member 31 is pulled by the second pull ring 326, so that the elastic member 31 is stretched and deformed, and meanwhile, the elastic member 31 stores energy. That is, the tensile deformation of the elastic member 31 absorbs the tension of the pulling rope 324, the first pulling ring 325 and the second pulling ring 326 when being suddenly pulled and stressed, and converts the tension into elastic potential energy, so that the connecting assembly 32 can be prevented from generating large tension when being suddenly stressed, the second hooking member 2 is prevented from being separated from the traction mechanism, and the safety of the operator can be ensured.

As shown in fig. 7 and 8, in this embodiment, the elastic member 31 is preferably a tension spring, the tension spring is sleeved on the pulling rope 324, the length of the pulling rope 324 is greater than the length of the tension spring in the natural state, one end of the tension spring is connected to the first pulling ring 325, and the other end of the tension spring is connected to the second pulling ring 326. The length of the pulling rope 324 is greater than that of the tension spring in a free state, so that the tension spring can be prevented from interfering with the pulling rope 324, the tension spring can be guaranteed to be stretched and deformed, and the tension spring can play a role in energy storage.

Further, in the embodiment, the pulling rope 324 is a steel wire rope, and the presence of the pulling rope 324 can prevent the elastic member 31 from being overstretched and failing, protect the elastic member 31, and prolong the service life of the buffer connection device.

Optionally, the connection assembly 32 further comprises a chain 323. As shown in fig. 9, in the present embodiment, chains 323 are preferably provided between the first hanger 1 and the first pull ring 325, and between the second hanger 2 and the second pull ring 326. Thereby guarantee between first hook member 1 and the first pull ring 325 to and be the flexonics between second hook member 2 and the second pull ring 326, so that buffering connecting device can adapt to the installation space of different intervals, application range is wider.

In other embodiments, as shown in fig. 10, a chain 323 may be provided only between the first hooking member 1 and the first tab 325. At this time, the second hook member 2 is directly connected to the second pull ring 326, and when the traction mechanism pulls the second pull ring 326 through the second hook member 2, the elastic member 31 is stretched and deformed and stores energy, which also has a buffering effect.

In another embodiment, as shown in fig. 11, the chain 323 may be provided only between the second hook member 2 and the second pull ring 326, and the first hook member 1 is directly connected to the first pull ring 325. When the traction mechanism pulls the container through the buffer connecting device, the buffer function can be achieved in the same way.

In the course of actual use, the connection positional relationship between the chain 323 and the first and second hook members 1 and 2 and the first and second pull rings 325 and 326 may be changed as needed, and the connection method is not limited to the above-mentioned connection method as long as the cushioning effect can be achieved.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A cushioned connection arrangement, comprising:

a first hook (1) configured to be connected to a body to be moved;

a second hooking member (2) comprising a hooking portion (22) and a grip portion (21), the hooking portion (22) being configured to be connected with a traction mechanism;

buffer structure (3), including elastic component (31) and coupling assembling (32) that link to each other, elastic component (31) cover is located on coupling assembling (32), the one end of coupling assembling (32) with first hooking member (1) is connected, the other end with second hooking member (2) are connected, drive mechanism passes through hooking portion (22) pulling during coupling assembling (32), elastic component (31) produce elastic deformation, in order to absorb the tension of coupling assembling (32) is converted into elastic potential energy and is stored.

2. The buffer connecting device according to claim 1, wherein the connecting assembly (32) comprises a fixing sleeve (321) and a connecting rod (322) arranged in the fixing sleeve (321), one end of the connecting rod (322) extending out of the fixing sleeve (321) is connected with the first hook member (1), the other end of the connecting rod (322) is in sliding fit with the fixing sleeve (321), and one end of the fixing sleeve (321) far away from the first hook member (1) is connected with the second hook member (2).

3. A cushioned connection arrangement according to claim 2, characterized in that said connection assembly (32) further comprises a chain (323), said chain (323) being arranged between said first hooking member (1) and said connection rod (322), and/or said chain (323) being arranged between said fixing sleeve (321) and said second hooking member (2).

4. The buffer connection device according to claim 3, wherein a limit groove (3211) is formed in the fixed sleeve (321), a first stop portion (3221) is formed at one end of the connection rod (322) located in the fixed sleeve (321), and the first stop portion (3221) is slidably fitted in the limit groove (3211).

5. The buffer connecting device according to claim 4, wherein the elastic member (31) is a compression spring, the compression spring is sleeved on the fixed sleeve (321), one end of the fixed sleeve (321) close to the first hooking member (1) is provided with a second stopping portion (3212), one end of the compression spring abuts against the second stopping portion (3212), and the other end abuts against the first stopping portion (3221).

6. A cushioned connection arrangement as set forth in claim 1 wherein said attachment assembly (32) includes a pull-cord (324), a first pull-loop (325) and a second pull-loop (326), said first pull-loop (325) being disposed at one end of said pull-cord (324), said second pull-loop (326) being disposed at the other end of said pull-cord (324), said first pull-loop (325) being connected to said first hanger (1), said second pull-loop (326) being connected to said second hanger (2).

7. The buffer connecting device as claimed in claim 6, wherein the elastic member (31) is a tension spring, the tension spring is sleeved on the pulling rope (324), the length of the pulling rope (324) is greater than the length of the tension spring in a natural state, one end of the tension spring is connected with the first pulling ring (325), and the other end of the tension spring is connected with the second pulling ring (326).

8. A cushioned connection arrangement according to claim 7, characterized in that the connection assembly (32) further comprises a chain (323), the chain (323) being arranged between the first hooking member (1) and the first tab (325), and/or the chain (323) being arranged between the second hooking member (2) and the second tab (326).

9. The buffer connection device according to claim 1, wherein the second hook member (2) further comprises a first rod (23) and a second rod (24) connected to each other, the hook portion (22) is disposed on the first rod (23), the first rod (23) is disposed along a horizontal direction and connected to the connection assembly (32), the second rod (24) is disposed at an included angle with respect to the first rod (23), the hand-held portion (21) is an arc-shaped bending rod, one end of the bending rod is connected to the first rod (23), and the other end of the bending rod is connected to the second rod (24).

10. The buffer connecting device as claimed in claim 9, wherein the hooking portion (22) comprises a first limiting protrusion (221) and a second limiting protrusion (222) which are arranged on the first rod (23) at intervals, a clamping groove is arranged on the traction mechanism, and the first limiting protrusion (221) and the second limiting protrusion (222) are clamped with the clamping groove.

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