A connecting piece and a hanging and pulling device

Abstract

The present invention discloses a connector and a lifting device, which has a simple and easy-to-implement structure and adopts a plurality of connector bodies that can be connected in series, so that they can be connected in series to an appropriate length according to actual needs, so that the rope on the rope retractor does not need to be directly connected to the suspended body, which is beneficial to avoid the situation where the rope is immersed in water for a long time and affects its performance and service life; in addition, the first longitudinal channel of the head of the connector body and the second longitudinal channel of the tail are set, so that when adjacent connector bodies are connected in series, the second longitudinal channel of the first connector body can correspond coaxially with the first longitudinal channel of the other connector body to facilitate the connection of the shaft / pin between the two, making the connection convenient; the setting of the pulley makes it easy for the connector body to move along the length direction, and can reduce the friction between the connector body and the external wall when pulling the suspended body to move.

Description

Technical Field

[0001] The invention relates to a connecting piece and a lifting device. Background Art

[0002] At present, the existing high-head inclined submerged flat working gates, emergency gates or trash racks have limited hoist strokes and use winch-type hoists, which cause the lower end pulley block to be immersed in water for a long time. This easily causes the pulley block and wire rope to rust, thereby affecting the performance. Therefore, how to overcome the above-mentioned defects has become an important issue that needs to be urgently solved by technical personnel in this field. Summary of the Invention

[0003] The present invention overcomes the deficiencies of the above-mentioned technologies and provides a connecting piece and a lifting device.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A connector includes a connector body 1, wherein the connector body 1 is provided with a head 2 at one end in the longitudinal direction and a tail 3 at the other end in the longitudinal direction that can be connected in series with the head 2 of another connector body 1, the head 2 is provided with a first longitudinal channel 21 perpendicular to the longitudinal direction of the connector body 1, and the tail 3 is provided with a second longitudinal channel 31 perpendicular to the longitudinal direction of the connector body 1. When adjacent connector bodies 1 are connected in series, the second longitudinal channel 31 of the first connector body 1 can be coaxially corresponding to the first longitudinal channel 21 of the other connector body 1 so as to connect the shaft body / pin 4 between the two, the connector body 1 is provided with a plurality of first support arms 5 extending obliquely from the top to the front and bottom thereof, and a plurality of second support arms 6 extending obliquely from the top to the rear and bottom thereof, the lower end of the first support arm 5 is provided with a pulley 7 that can rotate around an axis in the front-back direction so that the connector body 1 can easily move along the longitudinal direction, and the lower end of the second support arm 6 is provided with a pulley 7 that can rotate around an axis in the front-back direction so that the connector body 1 can easily move along the longitudinal direction.

[0006] Preferably, the plurality of first support arms 5 and the plurality of second support arms 6 are symmetrically distributed front to back, and the angle between the symmetrically distributed first support arms 5 and the second support arms 6 is C, which satisfies 60 degrees ≤ C ≤ 120 degrees.

[0007] Preferably, the head portion 2 is provided with a head end length opening channel 22 vertically connected to the first longitudinal channel 21, the first longitudinal channel 21 is provided with a first front side through hole 211 located on the front wall of the head portion 2, and a first rear side through hole 212 located on the rear wall of the head portion 2, the tail portion 3 is provided with a tail end length opening channel 32 vertically connected to the second longitudinal channel 31, the second longitudinal channel 31 is provided with a second front side through hole 311 located on the front wall of the tail portion 3, and a second rear side through hole 312 located on the rear wall of the tail portion 3. When the two connector bodies 1 are connected in series, the head end length opening channel 22 of the second connector body 1 can be sleeved outside the outer wall of the tail end length opening channel 32 of the first connector body 1.

[0008] Preferably, the connector body 1 includes a front length-extending side wall body 11 and a rear length-extending side wall body 12 distributed front to back, and the front length-extending side wall body 11 and the rear length-extending side wall body 12 are connected and fixed by a number of connecting ribs / plates 13. One end of the front length-extending side wall body 11 is provided with the first front through hole 211, and the other end is provided with the second front through hole 311. One end of the rear length-extending side wall body 12 is provided with the first rear through hole 212, and the other end is provided with the second rear through hole 312.

[0009] This case also protects a lifting device, including a suspended body 8, a rope retractor 9, and several connector bodies 1 connected in series, wherein the connector body 1 is provided with a head 2 at one end in the longitudinal direction and a tail 3 at the other end in the longitudinal direction that can be connected in series with the head 2 of another connector body 1, the head 2 is provided with a first longitudinal channel 21 perpendicular to the longitudinal direction of the connector body 1, and the tail 3 is provided with a second longitudinal channel 31 perpendicular to the longitudinal direction of the connector body 1. When adjacent connector bodies 1 are connected in series, the second longitudinal channel 31 of the first connector body 1 can be coaxially corresponding to the first longitudinal channel 21 of the other connector body 1 to facilitate the connection of the shaft body / pin 4 between the two, the connector body 1 is installed with several pulleys 7 that can rotate around the axis in the front and rear directions so that the connector body 1 can easily move along the longitudinal direction, the head end of the several connector bodies 1 after being connected in series is connected to the suspended body 8, and the tail end is connected to the rope 91 on the rope retractor 9 for transmission.

[0010] Preferably, the connector body 1 is provided with a plurality of first support arms 5 extending to the front and lower direction thereof, and a plurality of second support arms 6 extending to the rear and lower direction thereof, the lower end of the first support arm 5 is provided with the pulley 7 capable of rotating around the axis in the front-to-back direction, and the lower end of the second support arm 6 is provided with the pulley 7 capable of rotating around the axis in the front-to-back direction.

[0011] Preferably, the plurality of first support arms 5 and the plurality of second support arms 6 are symmetrically distributed front to back, and the angle between the symmetrically distributed first support arms 5 and the second support arms 6 is C, which satisfies 60 degrees ≤ C ≤ 120 degrees.

[0012] Preferably, the head portion 2 is provided with a head end length opening channel 22 vertically connected to the first longitudinal channel 21, the first longitudinal channel 21 is provided with a first front side through hole 211 located on the front wall of the head portion 2, and a first rear side through hole 212 located on the rear wall of the head portion 2, the tail portion 3 is provided with a tail end length opening channel 32 vertically connected to the second longitudinal channel 31, the second longitudinal channel 31 is provided with a second front side through hole 311 located on the front wall of the tail portion 3, and a second rear side through hole 312 located on the rear wall of the tail portion 3. When the two connector bodies 1 are connected in series, the head end length opening channel 22 of the second connector body 1 can be sleeved outside the outer wall of the tail end length opening channel 32 of the first connector body 1.

[0013] Preferably, the connector body 1 includes a front length-extending side wall body 11 and a rear length-extending side wall body 12 distributed front to back, and the front length-extending side wall body 11 and the rear length-extending side wall body 12 are connected and fixed by a number of connecting ribs / plates 13. One end of the front length-extending side wall body 11 is provided with the first front through hole 211, and the other end is provided with the second front through hole 311. One end of the rear length-extending side wall body 12 is provided with the first rear through hole 212, and the other end is provided with the second rear through hole 312.

[0014] Preferably, the tail ends of the several connecting member bodies 1 connected in series are connected to a first guide wheel mechanism 92 through a connecting member for the rope 91 to be wound around, and the rope retractor 9 is provided with a second guide wheel mechanism 93 for the rope 91 to be wound around. When the rope retractor 9 tightens the rope 91, the first guide wheel mechanism 92 can be moved toward the second guide wheel mechanism 93 so as to drive the connecting member body 1 and the suspended body 8 to move toward the second guide wheel mechanism 93.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The connector structure of this case is simple and easy to implement. The first longitudinal channel of the head of the connector body and the second longitudinal channel of the tail are set, which makes it easy for the second longitudinal channel of the first connector body to correspond coaxially with the first longitudinal channel of the other connector body when the adjacent connector bodies are connected in series, so as to facilitate the connection of the shaft body / pin between the two, making the series connection convenient; the connector body is provided with a plurality of first support arms and a plurality of second support arms, so as to achieve support on both sides of the connector body, and the support is relatively stable. After the pulley is connected, it is easy for the connector body to move along the length direction, such as Figure 5 As shown, when the suspended body is pulled to move, the friction between the connector body and the external wall can be reduced, so that the connector body can move easily along the length direction, and the practicality is good.

[0017] 2. The structure of the lifting device of the present invention is simple and easy to implement. It adopts a plurality of connector bodies that can be connected in series, which can be connected in series to an appropriate length according to actual needs, so that the rope on the rope retractor does not need to be directly connected to the suspended body, which is conducive to avoiding the situation where the rope is immersed in water for a long time and affects the performance and service life; In addition, the first longitudinal channel of the head of the connector body and the second longitudinal channel of the tail are set, which is convenient for the second longitudinal channel of the first connector body to correspond coaxially with the first longitudinal channel of the other connector body when the adjacent connector bodies are connected in series, so as to connect the shaft body / pin between the two, making the series connection convenient; The setting of the pulley makes it easy for the connector body to move along the length direction, such as Figure 5 As shown, when the suspended body is pulled to move, the friction between the connector body and the external wall can be reduced, so that the connector body can move easily along the length direction, which has good practicality.

[0018] 3. The connector body in this case is provided with several first support arms and several second support arms, thereby achieving support on both sides of the connector body, which is beneficial to increasing the height of the connector body, making it less likely to be scratched by external obstacles during movement, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram showing the structure of the connector in this case.

[0020] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle.

[0021] Figure 3 yes Figure 1 Bottom view of .

[0022] Figure 4 yes Figure 3 Cross-sectional view at the middle BB.

[0023] Figure 5 This is a structural diagram of the lifting device in this case. DETAILED DESCRIPTION

[0024] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0025] like Figures 1 to 4 As shown, a connector includes a connector body 1, wherein the connector body 1 is provided with a head 2 at one end in the longitudinal direction and a tail 3 at the other end in the longitudinal direction which can be connected in series with the head 2 of another connector body 1, the head 2 is provided with a first longitudinal channel 21 perpendicular to the longitudinal direction of the connector body 1, and the tail 3 is provided with a second longitudinal channel 31 perpendicular to the longitudinal direction of the connector body 1. When adjacent connector bodies 1 are connected in series, the second longitudinal channel 31 of the first connector body 1 can correspond coaxially with the first longitudinal channel 21 of the other connector body 1 so as to connect the shaft body / pin 4 between the two, the connector body 1 is provided with a plurality of first support arms 5 extending obliquely from the top to the front and bottom thereof, and a plurality of second support arms 6 extending obliquely from the top to the rear and bottom thereof, the lower end of the first support arm 5 is provided with a pulley 7 which can rotate around an axis in the front-back direction so that the connector body 1 can easily move along the longitudinal direction, and the lower end of the second support arm 6 is provided with a pulley 7 which can rotate around an axis in the front-back direction so that the connector body 1 can easily move along the longitudinal direction.

[0026] As described above, the connector structure of this case is simple and easy to implement. The first longitudinal channel 21 of the head 2 of the connector body 1 is set and the second longitudinal channel 31 of the tail 3 is set, so that when adjacent connector bodies 1 are connected in series, the second longitudinal channel 31 of the first connector body 1 can be coaxially corresponding to the first longitudinal channel 21 of another connector body 1 so as to connect the shaft / pin 4 between the two, making the series connection convenient; the connector body 1 is provided with several first support arms 5 and several second support arms 6, so as to realize the support of the connector body 1 on both sides, and the support is relatively stable. After the pulley 7 is connected, it is convenient for the connector body 1 to move along the length direction. Figure 5 As shown, when the suspended body 8 is pulled to move, the friction between the connector body 1 and the external wall can be reduced, so that the connector body 1 is easy to move along the length direction, and has good practicality.

[0027] like Figure 3 、 Figure 4As shown, in a specific implementation, the plurality of first support arms 5 and the plurality of second support arms 6 are symmetrically distributed front to back, and the angle between the symmetrically distributed first support arms 5 and the second support arms 6 is C, which is 60 degrees ≤ C ≤ 120 degrees. In this way, the span between the support arms on both sides will not be too narrow, so that the height of the connector body 1 is relatively too high and affects the walking stability, and the span between the support arms on both sides will not be too wide, so that the height of the connector body 1 is relatively too low and easily scrapes against external obstacles.

[0028] like Figure 3 As shown, in a specific implementation, the head portion 2 is provided with a head end length opening channel 22 vertically connected to the first longitudinal channel 21, the first longitudinal channel 21 is provided with a first front side through hole 211 located on the front wall of the head portion 2, and a first rear side through hole 212 located on the rear wall of the head portion 2, the tail portion 3 is provided with a tail end length opening channel 32 vertically connected to the second longitudinal channel 31, the second longitudinal channel 31 is provided with a second front side through hole 311 located on the front wall of the tail portion 3, and a second rear side through hole 312 located on the rear wall of the tail portion 3, when the two connector bodies 1 are connected in series, the head end length opening channel 22 of the second connector body 1 can be sleeved on the outer wall body of the tail end length opening channel 32 of the first connector body 1, so that it is convenient to pass the shaft body / latch 4 through the symmetrically distributed 4 through holes when connected in series, so that the shaft body / latch 4 is better stressed.

[0029] like Figure 3 As shown, in a specific implementation, the connector body 1 includes a front length-extending side wall body 11 and a rear length-extending side wall body 12 distributed front to back, and the front length-extending side wall body 11 and the rear length-extending side wall body 12 are connected and fixed by a number of connecting ribs / plates 13. One end of the front length-extending side wall body 11 is provided with the first front through hole 211, and the other end is provided with the second front through hole 311. One end of the rear length-extending side wall body 12 is provided with the first rear through hole 212, and the other end is provided with the second rear through hole 312, which is convenient for specific implementation.

[0030] like Figures 1 to 5As shown, a lifting device is characterized in that it includes a suspended body 8, a rope retractor 9, and several connector bodies 1 connected in series, wherein the connector body 1 is provided with a head 2 at one end in the length direction and a tail 3 at the other end in the length direction that can be connected in series with the head 2 of another connector body 1, the head 2 is provided with a first longitudinal channel 21 perpendicular to the length direction of the connector body 1, and the tail 3 is provided with a second longitudinal channel 31 perpendicular to the length direction of the connector body 1. When adjacent connector bodies 1 are connected in series, the second longitudinal channel 31 of the first connector body 1 can be coaxially corresponding to the first longitudinal channel 21 of the other connector body 1 so as to connect the shaft body / pin 4 therebetween, the connector body 1 is installed with several pulleys 7 that can rotate around the axis in the front and rear directions so that the connector body 1 can easily move along the length direction, the head end of the several connector bodies 1 after being connected in series is connected to the suspended body 8, and the tail end is connected to the rope 91 on the rope retractor 9 for transmission.

[0031] As described above, the structure of the lifting device in this case is simple and easy to implement. It adopts a plurality of connector bodies 1 that can be connected in series, which can be connected in series to an appropriate length according to actual needs, so that the rope 91 on the rope retractor 9 does not need to be directly connected to the suspended body 8, which is conducive to avoiding the situation where the rope 91 is immersed in water for a long time and affects the performance and service life; in addition, the first longitudinal channel 21 of the head 2 of the connector body 1 in this case is set and the second longitudinal channel 31 of the tail 3 is set, so that when adjacent connector bodies 1 are connected in series, the second longitudinal channel 31 of the first connector body 1 can be coaxially corresponding to the first longitudinal channel 21 of the other connector body 1 so as to connect the shaft body / pin 4 between the two, making the series connection convenient; the setting of the pulley 7 makes it easy for the connector body 1 to move along the length direction, such as Figure 5 As shown, when the suspended body 8 is pulled to move, the friction between the connector body 1 and the external wall can be reduced, so that the connector body 1 is easy to move along the length direction, and has good practicality.

[0032] As described above, in a specific implementation, the suspended body 8 in this case can be a service gate, an emergency gate or a trash rack.

[0033] like Figure 2 、 Figure 3 As shown, in a specific implementation, the connector body 1 is provided with a plurality of first support arms 5 extending toward the front and lower portion thereof, and a plurality of second support arms 6 extending toward the rear and lower portion thereof, the lower end of the first support arm 5 is provided with the pulley 7 capable of rotating around an axis in the front-to-rear direction, and the lower end of the second support arm 6 is provided with the pulley 7 capable of rotating around an axis in the front-to-rear direction.

[0034] As described above, the connector body 1 in this case is provided with several first support arms 5 and several second support arms 6, thereby achieving support on both sides of the connector body 1, which is beneficial to increasing the height of the connector body 1, making it less likely to be scratched by external obstacles during movement, and has good practicality.

[0035] like Figure 3 、 Figure 4 As shown, in a specific implementation, the plurality of first support arms 5 and the plurality of second support arms 6 are symmetrically distributed front to back, and the angle between the symmetrically distributed first support arms 5 and the second support arms 6 is C, which is 60 degrees ≤ C ≤ 120 degrees. In this way, the span between the support arms on both sides will not be too narrow, so that the height of the connector body 1 is relatively too high and affects the walking stability, and the span between the support arms on both sides will not be too wide, so that the height of the connector body 1 is relatively too low and easily scrapes against external obstacles.

[0036] like Figure 3 As shown, in a specific implementation, the head portion 2 is provided with a head end length opening channel 22 vertically connected to the first longitudinal channel 21, the first longitudinal channel 21 is provided with a first front side through hole 211 located on the front wall of the head portion 2, and a first rear side through hole 212 located on the rear wall of the head portion 2, the tail portion 3 is provided with a tail end length opening channel 32 vertically connected to the second longitudinal channel 31, the second longitudinal channel 31 is provided with a second front side through hole 311 located on the front wall of the tail portion 3, and a second rear side through hole 312 located on the rear wall of the tail portion 3, when the two connector bodies 1 are connected in series, the head end length opening channel 22 of the second connector body 1 can be sleeved on the outer wall body of the tail end length opening channel 32 of the first connector body 1, so that it is convenient to pass the shaft body / latch 4 through the symmetrically distributed 4 through holes when connected in series, so that the shaft body / latch 4 is better stressed.

[0037] like Figure 3 As shown, in a specific implementation, the connector body 1 includes a front length-extending side wall body 11 and a rear length-extending side wall body 12 distributed front to back, and the front length-extending side wall body 11 and the rear length-extending side wall body 12 are connected and fixed by a number of connecting ribs / plates 13. One end of the front length-extending side wall body 11 is provided with the first front through hole 211, and the other end is provided with the second front through hole 311. One end of the rear length-extending side wall body 12 is provided with the first rear through hole 212, and the other end is provided with the second rear through hole 312, which is convenient for specific implementation.

[0038] like Figure 5As shown, in a specific implementation, the tail ends of the several connecting member bodies 1 connected in series are connected to a first guide wheel mechanism 92 for the rope 91 to be wound around through a connecting member, and the rope retractor 9 is provided with a second guide wheel mechanism 93 for the rope 91 to be wound around. When the rope retractor 9 tightens the rope 91, the first guide wheel mechanism 92 can be moved toward the second guide wheel mechanism 93 so as to drive the connecting member body 1 and the suspended body 8 to move toward the second guide wheel mechanism 93, which can facilitate the rope retractor 9 to pull the rope 91 with less effort.

[0039] As mentioned above, this case protects a connector and a lifting device, and all technical solutions that are the same or similar to those in this case should be deemed to fall within the scope of protection of this case.

Claims

1. A connector, characterized in that The invention comprises a connector body (1), wherein one end of the connector body (1) in the longitudinal direction is provided with a head portion (2), and the other end in the longitudinal direction is provided with a tail portion (3) capable of being connected in series with the head portion (2) of another connector body (1), wherein the head portion (2) is provided with a first longitudinal channel (21) perpendicular to the longitudinal direction of the connector body (1), and the tail portion (3) is provided with a second longitudinal channel (31) perpendicular to the longitudinal direction of the connector body (1), and when adjacent connector bodies (1) are connected in series, the second longitudinal channel (31) of the first connector body (1) can be connected to the other connector body ( 1) are coaxially corresponding to each other so as to facilitate the connection of the shaft body / latch pin (4) therebetween, the connector body (1) is provided with a plurality of first support arms (5) extending obliquely from the top to the front and bottom thereof, and a plurality of second support arms (6) extending obliquely from the top to the rear and bottom thereof, the lower ends of the first support arms (5) are provided with pulleys (7) which can be rotated around the axis in the front-back direction so as to facilitate the connector body (1) to move along the length direction, and the lower ends of the second support arms (6) are provided with pulleys (7) which can be rotated around the axis in the front-back direction so as to facilitate the connector body (1) to move along the length direction; The plurality of first support arms (5) and the plurality of second support arms (6) are symmetrically distributed front to back, and the angle between the symmetrically distributed first support arms (5) and the second support arms (6) is C, and 60 degrees ≤ C ≤ 120 degrees; The head portion (2) is provided with a head end lengthwise opening channel (22) vertically connected to the first longitudinal channel (21); the first longitudinal channel (21) is provided with a first front side through hole (211) located on the front wall of the head portion (2) and a first rear side through hole (212) located on the rear wall of the head portion (2); the tail portion (3) is provided with a tail end lengthwise opening channel (32) vertically connected to the second longitudinal channel (31); the second longitudinal channel (31) is provided with a second front side through hole (311) located on the front wall of the tail portion (3) and a second rear side through hole (312) located on the rear wall of the tail portion (3); when the two connector bodies (1) are connected in series, the head end lengthwise opening channel (22) of the second connector body (1) can be sleeved outside the outer wall of the tail end lengthwise opening channel (32) of the first connector body (1).

2. A connector according to claim 1, characterized in that The connector body (1) comprises a front length-extending side wall (11) and a rear length-extending side wall (12) distributed front to back. The front length-extending side wall (11) and the rear length-extending side wall (12) are connected and fixed via a plurality of connecting ribs / plates (13). One end of the front length-extending side wall (11) is provided with the first front through hole (211) and the other end is provided with the second front through hole (311). One end of the rear length-extending side wall (12) is provided with the first rear through hole (212) and the other end is provided with the second rear through hole (312).

3. A lifting device, characterized in that The invention comprises a suspended body (8), a rope retractor (9), and a plurality of connecting member bodies (1) connected in series, wherein a head portion (2) is provided at one end in the longitudinal direction of the connecting member body (1), and a tail portion (3) capable of being connected in series with the head portion (2) of another connecting member body (1) is provided at the other end in the longitudinal direction, the head portion (2) is provided with a first longitudinal channel (21) perpendicular to the longitudinal direction of the connecting member body (1), and the tail portion (3) is provided with a second longitudinal channel (31) perpendicular to the longitudinal direction of the connecting member body (1). When adjacent connecting member bodies ( 1), when the two are connected in series, the second longitudinal channel (31) of the first connector body (1) can correspond coaxially with the first longitudinal channel (21) of the other connector body (1) so as to facilitate the connection of the shaft body / pin (4) between the two, and the connector body (1) is equipped with a plurality of pulleys (7) that can rotate around the axis in the front-back direction so as to facilitate the connector body (1) to move along the length direction. The head end of the plurality of connector bodies (1) after being connected in series is connected to the suspended body (8), and the tail end is connected to the rope (91) on the rope retractor (9) for transmission connection; The plurality of first support arms (5) and the plurality of second support arms (6) are symmetrically distributed front to back, and the angle between the symmetrically distributed first support arms (5) and the second support arms (6) is C, and 60 degrees ≤ C ≤ 120 degrees; The head portion (2) is provided with a head end lengthwise opening channel (22) vertically connected to the first longitudinal channel (21); the first longitudinal channel (21) is provided with a first front side through hole (211) located on the front wall of the head portion (2) and a first rear side through hole (212) located on the rear wall of the head portion (2); the tail portion (3) is provided with a tail end lengthwise opening channel (32) vertically connected to the second longitudinal channel (31); the second longitudinal channel (31) is provided with a second front side through hole (311) located on the front wall of the tail portion (3) and a second rear side through hole (312) located on the rear wall of the tail portion (3); when the two connector bodies (1) are connected in series, the head end lengthwise opening channel (22) of the second connector body (1) can be sleeved outside the outer wall of the tail end lengthwise opening channel (32) of the first connector body (1).

4. A lifting device according to claim 3, characterized in that The connector body (1) is provided with a plurality of first support arms (5) extending toward the front and bottom thereof, and a plurality of second support arms (6) extending toward the rear and bottom thereof; the lower end of the first support arm (5) is provided with the pulley (7) capable of rotating around an axis in the front-back direction; the lower end of the second support arm (6) is provided with the pulley (7) capable of rotating around an axis in the front-back direction.

5. A lifting device according to claim 3, characterized in that The connector body (1) comprises a front length-extending side wall (11) and a rear length-extending side wall (12) distributed front to back. The front length-extending side wall (11) and the rear length-extending side wall (12) are connected and fixed via a plurality of connecting ribs / plates (13). One end of the front length-extending side wall (11) is provided with the first front through hole (211) and the other end is provided with the second front through hole (311). One end of the rear length-extending side wall (12) is provided with the first rear through hole (212) and the other end is provided with the second rear through hole (312).

6. A lifting device according to any one of claims 3 to 5, characterized in that The tail ends of the plurality of connecting member bodies (1) connected in series are connected to a first guide wheel mechanism (92) for the rope (91) to be wound around through a connecting member, and the rope retractor (9) is provided with a second guide wheel mechanism (93) for the rope (91) to be wound around. When the rope retractor (9) tightens the rope (91), the first guide wheel mechanism (92) can be moved in the direction of the second guide wheel mechanism (93) so as to drive the connecting member body (1) and the suspended body (8) to move in the direction of the second guide wheel mechanism (93).

Images