CN211846963U - Lifting device - Google Patents
Lifting device Download PDFInfo
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- CN211846963U CN211846963U CN201922450820.1U CN201922450820U CN211846963U CN 211846963 U CN211846963 U CN 211846963U CN 201922450820 U CN201922450820 U CN 201922450820U CN 211846963 U CN211846963 U CN 211846963U
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- supporting rod
- side wall
- connecting frame
- limiting plate
- lifting device
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Abstract
The application discloses lifting devices belongs to oil gas well exploitation technical field. The lifting device comprises: bracing piece, link, clamp plate, limiting plate, first elastic component and compression arm. The first side wall and the second side wall of the connecting frame are sleeved on the supporting rod. The pressing plate is sleeved on the supporting rod and located between the first side wall and the second side wall, and the pressing plate is elastically connected with the first side wall. The limiting plate is sleeved on the supporting rod, the side edge of the limiting plate is hinged to the first side wall, the limiting plate is elastically connected with the first side wall through the first elastic piece, and the first elastic piece is in a compression state. The first end of compression arm is provided with the U-shaped opening, and U-shaped open-ended open end is articulated with the link, and U type open-ended inner wall is provided with the horizontal pole. This application can make the link shift up through rotating the compression arm to the drive treats shifting up of lifting the object, in addition, because the limiting plate can the chucking on the bracing piece, and then can realize spacing to the link, thereby avoids the slip of link on the bracing piece.
Description
Technical Field
The application relates to the technical field of oil and gas well exploitation, in particular to a lifting device.
Background
In the process of oil and gas well exploitation, the oil and gas well wellhead device is frequently required to be disassembled and assembled. Such as installing a christmas tree gate, etc. When installing the christmas tree gate, the christmas tree gate often needs to be lifted to a certain height. Because of the small volume of the christmas tree gate, it is typically lifted by manual force. However, the christmas tree gate has a large mass, is low in efficiency due to manual lifting, and is easily damaged for a lifter.
SUMMERY OF THE UTILITY MODEL
The application provides a lifting device, can solve the problem that oil gas well wellhead assembly lifted. The technical scheme is as follows:
a lifting device comprises a supporting rod, a connecting frame, a pressing plate, a limiting plate, a first elastic piece and a compression arm;
the first side wall and the second side wall of the connecting frame are sleeved on the supporting rod, the connecting frame can move along the length direction of the supporting rod, and the connecting frame is used for being connected with an object to be lifted;
the pressing plate is sleeved on the supporting rod and positioned between the first side wall and the second side wall, the pressing plate is elastically connected with the first side wall, and the pressing plate can be clamped on the supporting rod under the action of external force;
the limiting plate is sleeved on the supporting rod, the side edge of the limiting plate is hinged with the first side wall, the limiting plate is elastically connected with the first side wall through the first elastic piece, the first elastic piece is in a compressed state, and the limiting plate can be clamped on the supporting rod;
the first end of compression arm is provided with the U-shaped opening, U-shaped open-ended open end with the link is articulated, U type open-ended inner wall is provided with the horizontal pole, the horizontal pole can the compression arm with the pin joint of link compresses tightly when rotating as the center be close to on the clamp plate one side of first lateral wall, the link can drive when the compression arm is rotatory limiting plate synchronous motion.
In one possible implementation, the lifting device further comprises a limit screw;
the first elastic piece is a compression spring, one end of the limiting screw penetrates through the limiting plate, the compression spring and the first side wall in sequence, and the limiting plate is limited at the other end of the limiting screw.
Optionally, a limiting boss is arranged on one side, close to the support rod, of the connecting wall of the connecting frame, the limiting boss is located between the pressing plate and the first side wall, the limiting boss can limit the pressing plate, and the cross rod and the limiting boss are located on two opposite sides of the support rod respectively.
Optionally, the supporting rod is a square rod, and the limiting plate and the pressing plate are provided with square through holes.
Optionally, the supporting rod is a cylindrical rod, and the limiting plate and the pressing plate are provided with oval through holes.
Optionally, the lifting device further comprises a handle connected to the second end of the compression arm.
Optionally, the connecting frame is a U-shaped structure, a connecting wall of the connecting frame is provided with a hanging hole, and the connecting wall is used for being connected with the object to be lifted through the hanging hole.
Optionally, the connecting frame is an h-shaped structure inclined to the right, a reinforcing rib plate is arranged between the first side wall and the connecting wall of the connecting frame, the reinforcing rib plate is located on one side of the connecting wall far away from the supporting rod, a hanging weight hole is formed in the reinforcing rib plate, and the reinforcing rib plate is used for being connected with the object to be lifted through the hanging weight hole.
Optionally, the lifting device further comprises two second elastic members;
one end of each second elastic piece is connected with the first side wall, the other end of each second elastic piece is connected with the pressing plate, and the two elastic pieces are respectively positioned on two opposite sides of the supporting rod.
Optionally, both the two second elastic members are extension springs.
The technical scheme provided by the application has the beneficial effects that at least:
the connecting frame is sleeved on the supporting rod, so that the connecting frame can move along the length direction of the supporting rod. The pressing plate is arranged between the first side wall and the second side wall of the connecting frame, the opening end of the compression arm is hinged to the connecting frame, when the compression arm rotates along the opening end and the hinged position of the connecting frame, the pressing plate is enabled to incline through the arranged cross rod, the pressing plate is clamped on the supporting rod, and the pressing plate can support the cross rod at the moment. Therefore, when the end of the compression arm, which is not hinged with the connecting frame, moves downwards continuously, the opening end of the compression arm, which is hinged with the connecting frame, moves upwards to drive the connecting frame to move upwards synchronously. The pressing plate is elastically connected with the first side wall of the connecting frame, so that the pressing plate can be driven to move upwards synchronously. Meanwhile, the limiting plate can be inclined under the elastic action of the first elastic piece to be clamped on the supporting rod, so that the connecting frame can be prevented from sliding downwards along the supporting rod under the action of self gravity, the object to be lifted can be driven to move upwards in the lifting process of the connecting frame, and the lifting efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lifting device according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a partial explosion structure of a lifting device according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another lifting apparatus provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another lifting device provided in the embodiment of the present application.
Reference numerals:
1: a support bar; 2: a connecting frame; 3: pressing a plate; 4: a limiting plate; 5: a first elastic member; 6: a compression arm; 7: a handle; 8: a second elastic member; 61: a cross bar; 21: a limiting boss; 22: a reinforcing rib plate; 221: and (4) suspending the heavy hole.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 illustrates a schematic structural diagram of a lifting device according to an embodiment of the present application. As shown in fig. 1, the lifting device includes a support rod 1, a connecting frame 2, a pressing plate 3, a limiting plate 4, a first elastic member 5 and a compression arm 6. The first side wall and the second side wall of the connecting frame 2 are sleeved on the supporting rod 1, the connecting frame 2 can move along the length direction of the supporting rod 1, and the connecting frame 2 is used for being connected with an object to be lifted. The pressing plate 3 is sleeved on the supporting rod 1 and located between the first side wall and the second side wall, the pressing plate 3 is elastically connected with the first side wall, and the pressing plate 3 can be clamped on the supporting rod 1 under the action of external force. Limiting plate 4 overlaps on bracing piece 1, and the side and the first lateral wall of limiting plate 4 are articulated, and limiting plate 4 is in compression state through first elastic component 5 and first lateral wall elastic connection, first elastic component 5, and limiting plate 4 can the chucking on bracing piece 1. The first end of compression arm 6 is provided with the U-shaped opening, and U-shaped open-ended open end is articulated with link 2, and U type open-ended inner wall is provided with horizontal pole 61, and horizontal pole 61 can compress tightly the one side that is close to first lateral wall on clamp plate 3 when compression arm 6 uses the pin joint with link 2 as the center rotation, and link 2 can drive limiting plate 4 synchronous motion when compression arm 6 is rotatory.
In the embodiment of the present application, the connecting frame 2 is sleeved on the supporting rod 1, so that the connecting frame 2 can move along the length direction of the supporting rod 1. The pressing plate 3 is arranged between the first side wall and the second side wall of the connecting frame 2, the opening end of the compression arm 6 is hinged with the connecting frame 2, when the compression arm 6 rotates along the hinged position of the opening end and the connecting frame 2, the arranged cross rod 61 enables the pressing plate 3 to incline to be clamped on the supporting rod 1, and at the moment, the pressing plate 3 can support the cross rod 61. Therefore, when the end of the compression arm 6, which is not hinged with the connecting frame 2, moves downwards continuously, the opening end of the compression arm 6, which is hinged with the connecting frame 2, moves upwards to drive the connecting frame 2 to move upwards synchronously. Because the pressing plate 3 is elastically connected with the first side wall of the connecting frame 2, the pressing plate 3 can be driven to move upwards synchronously. Meanwhile, the limiting plate 4 can be inclined under the elastic action of the first elastic piece 5 to be clamped on the supporting rod 1, so that the connecting frame 2 can be prevented from sliding downwards along the supporting rod 1 under the action of self gravity, the object to be lifted can be driven to move upwards in the lifting process of the connecting frame 2, and the lifting efficiency is improved.
In practical implementation, the supporting rod 1 is vertically supported on the ground, and then an object to be lifted is hung on the connecting wall of the connecting frame 2, after that, an operator holds one end of the compression arm 6, which is not hinged to the connecting frame 2, to rotate the compression arm 6, so as to enable the pressing plate 3 to incline through the cross rod 61 arranged on the compression arm 6, after the pressing plate 3 inclines, the friction force between the pressing plate 3 and the supporting rod 1 becomes large and is clamped on the supporting rod 1, so as to form a support for the cross rod 61 on the compression arm 6, after that, the operator continues to rotate the compression arm 6, and the compression arm 6 takes the cross rod 61 as a fulcrum to enable one end of the compression arm 6, which is hinged to the connecting frame 2, to move upwards, so as to drive. Because the pressing plate 3 is elastically connected with the first side wall of the connecting frame 2, the pressing plate 3 can be driven to move upwards synchronously. Meanwhile, the limiting plate 4 can be inclined under the elastic action of the first elastic piece 5 to be clamped on the support rod 1, so that the connecting frame 2 can be prevented from sliding downwards along the support rod 1 under the action of self gravity.
The opening provided at the first end of the compression arm 6 may be in a U shape, or may be in other shapes, such as a V shape, as long as the rotation of the compression arm 6 is not affected, which is not limited in the embodiment of the present application.
The length of the supporting rod 1 can be determined based on the height of the object to be lifted, which needs to be raised, and of course, can also be determined based on other factors, which is not limited in the embodiment of the present application.
In some embodiments, as shown in fig. 1, the supporting rod 1 may be a square rod, and the limiting plate 4 and the pressing plate 3 may be provided with square through holes. Like this, after limiting plate 4 and clamp plate 3 slope, produce the extrusion on the square through hole of limiting plate 4 between the limit of perpendicular to incline direction and the square bar, thereby generate frictional force, so that the 4 chucking of limiting plate is on bracing piece 1, and then it is spacing to form link 2, produce the extrusion on the square through hole of clamp plate 3 between the limit of perpendicular to incline direction and the square bar, thereby generate frictional force, so that the chucking of clamp plate 3 is on bracing piece 1, then it is spacing to the formation of the horizontal pole 61 of compression arm 6.
Because bracing piece 1 is the square bar, and all set up square through hole on limiting plate 4 and the clamp plate 3, consequently can be after limiting plate 4 and the 3 slopes of clamp plate, increase limiting plate 4 and clamp plate 3 respectively with bracing piece 1's area of contact, and then improve limiting plate 4 to the spacing effect of link 2 to and the spacing effect of clamp plate 3 to compression arm 6.
In other embodiments, the supporting rod 1 may be a cylindrical rod, and the limiting plate 4 and the pressing plate 3 may both have an elliptical through hole. Like this, after limiting plate 4 and clamp plate 3 slope, produce the extrusion between the oval through-hole of limiting plate 4 and the cylinder pole to generate frictional force, so that the 4 chucking of limiting plate is on bracing piece 1, and then it is spacing to form link 2, produces the extrusion between the oval through-hole of clamp plate 3 and the cylinder pole, thereby generate frictional force, so that the chucking of clamp plate 3 is on bracing piece 1, and then forms spacingly to the horizontal pole 61 of compression arm 6.
Because bracing piece 1 is the cylinder pole, and all set up oval through-hole on limiting plate 4 and the clamp plate 3, consequently can be after limiting plate 4 and the 3 slopes of clamp plate, increase limiting plate 4 and clamp plate 3 respectively with bracing piece 1's area of contact, and then improve limiting plate 4 to the spacing effect of link 2 to and the spacing effect of clamp plate 3 to compression arm 6.
The inclined direction of the limiting plate 4 is the same as the long axis direction of the oval through hole arranged on the limiting plate 4, and the inclined direction of the pressing plate 3 is the same as the long axis direction of the oval through hole arranged on the pressing plate 3.
It should be noted that the support rod 1 may have other shapes besides the two shapes described above, as long as the inclined limit plate 4 can limit the connecting frame 2, and the inclined pressure plate 3 can limit the cross bar 61 of the compression arm 6, which is not limited in the embodiment of the present application
In some embodiments, the lifting device may further include a limit screw, the first elastic member 5 is a compression spring, one end of the limit screw sequentially passes through the limit plate 4, the compression spring and the first sidewall, and the limit plate 4 limits the other end of the limit screw.
Like this, can carry on spacingly through stop screw to compression spring's compression direction to take place to rock when avoiding the limiting plate slope, thereby can promote the effect of the elastic force effect that compression spring applyed to limiting plate 4, and then can make the more stable chucking of limiting plate 4 on the bracing piece.
Wherein, compression spring can be located and keep away from the first lateral wall articulated one side of limiting plate 4 and link 2 on the bracing piece 1, and of course, compression spring also can be located and be close to the first lateral wall articulated one side of limiting plate 4 and link 2 on the bracing piece 1, and this application embodiment does not limit this.
Further, the lifting device can also comprise a nut matched with the limit screw, and the limit nut is in threaded connection with the other end of the limit screw.
Like this, after passing limiting plate 4, compression spring and first lateral wall with limit screw's one end in proper order, can screw the nut on limit screw to it is spacing along compression spring's elasticity direction to limit screw, thereby can prevent that limit screw from losing and can not play limiting displacement to compression spring.
It should be noted that, after the nut is screwed on the limit screw, the distance between the end of the limit screw far away from the nut and the nut may be greater than or equal to the sum of the wall thickness of the first side wall of the connecting frame 2, the natural length of the compression spring, and the thickness of the limit plate 4, so as to ensure that the limit screw does not affect the compression spring to incline the limit plate 4. When lifting device include with stop screw assorted nut, stop screw except can pass limiting plate 4, compression spring and first lateral wall in proper order, also can pass first lateral wall, compression spring and limiting plate 4 in proper order, and this application embodiment does not limit to this.
In some embodiments, as shown in fig. 2, the lifting device may further include two second elastic members 8, one end of each second elastic member 8 is connected to the first side wall, the other end of each second elastic member 8 is connected to the pressing plate 3, and the two elastic members are respectively located at two opposite sides of the supporting rod 1.
In this way, the elastic connection of the pressing plate 3 to the first side wall of the connecting frame 2 can be realized by two elastic members, so that the pressing plate 3 can move upwards synchronously along with the connecting frame 2 by the pulling force of the two elastic members after the connecting frame 2 moves upwards.
For example, the two second elastic members 8 may be both extension springs, and of course, the two elastic members may also be other elastic members as long as the pressing plate 3 can move upwards along with the connecting frame 2 after the connecting frame 2 moves upwards, which is not limited in the embodiment of the present application.
Wherein, two second elastic component 8 can be located bracing piece 1 respectively and follow the relative both sides of horizontal pole 61 axial to when making two second elastic component 8 move up at clamp plate 3, provide pulling force for clamp plate 3 simultaneously, thereby can guarantee that clamp plate 3 shifts up fast, and can not take place the slope and produce the friction with bracing piece 1.
Of course, the two second elastic members 8 may also be respectively disposed on two opposite sides of the supporting rod 1 along an axial direction perpendicular to the cross rod 61, so that when the cross rod 61 presses one end of the pressing plate 3, the pressing plate 3 can be tilted more quickly, and then clamped on the supporting rod 1 more quickly. When the pressing plate 3 moves upwards, the pressing plate 3 is horizontal through the elastic acting force of the two second elastic pieces 8, so that the friction between the pressing plate 3 and the supporting rod 1 is reduced, and the pressing plate 3 can move upwards synchronously along with the connecting frame 2 more quickly.
In some embodiments, as shown in fig. 3, a side of the connecting wall of the connecting frame 2 close to the supporting rod 1 may be provided with a limiting boss 21, the limiting boss 21 is located between the pressing plate 3 and the first side wall, the limiting boss 21 can limit the pressing plate 3, and the cross rod 61 and the limiting boss 21 are respectively located on two opposite sides of the supporting rod 1.
Like this, after horizontal pole 61 pressed in one side of clamp plate 3, spacing boss 21 can be spacing to the opposite side of clamp plate 3 to make clamp plate 3 slope more fast, and then make clamp plate 3 chucking on bracing piece 1 more fast, spacing with horizontal pole 61 to compression arm 6, thereby can reduce the time of moving up of link 2, improve lifting device's lifting efficiency.
Wherein, spacing boss 21 can be the cubic, also can be rectangular form, and the length direction of rectangular form boss can be perpendicular with the length direction of bracing piece 1, and of course, spacing boss 21 also can be other shapes, as long as can carry on spacingly to clamp plate 3 can, this application embodiment does not limit to this.
In some embodiments, as shown in fig. 4, the connecting frame 2 may have a U-shaped structure, and the connecting wall of the connecting frame 2 is provided with a hanging hole 221, and the connecting wall is used for connecting with an object to be lifted through the hanging hole 221.
Thus, when the object to be lifted is lifted, the object to be lifted can be hung on the suspending holes 221 arranged on the connecting wall, so that the object to be lifted can synchronously lift along with the connecting frame 2, and the object to be lifted can lift.
Wherein, the opening of the connecting frame 2 can face to the side of the compression arm 6 where the handle 7 is positioned, and the object to be lifted can be hung on the side of the compression arm 6 where the opening is positioned through the hanging hole 221 on the connecting wall.
In other embodiments, the connecting frame 2 may be an h-shaped structure inclined to the right, a reinforcing rib 22 may be disposed between the first side wall and the connecting wall of the connecting frame 2, the reinforcing rib 22 may be located on a side of the connecting wall away from the supporting rod 1, a hanging weight hole 221 is disposed on the reinforcing rib 22, and the reinforcing rib 22 is configured to be connected to the object to be lifted through the hanging weight hole 221.
Thus, when the object to be lifted is lifted, the object to be lifted can be hung on the suspending holes 221 arranged on the reinforcing rib plates 22, so that the object to be lifted can synchronously lift along with the connecting frame 2, and the object to be lifted is lifted. In addition, the reinforcing floor 22 can prevent the connecting frame 2 from being damaged due to the fact that the mass of the object to be lifted is too large, and the reinforcing floor 22 can facilitate the hanging of the object to be lifted.
Wherein, the opening of the connecting frame 2 can face to the side of the compression arm 6 where the handle 7 is located, the reinforcing rib 22 can be arranged on the side of the connecting wall far away from the opening, and the object to be lifted can be hung on the reinforcing rib 22 through the hanging hole 221.
In some embodiments, as shown in fig. 3 or 4, the lifting device may further comprise a handle 7, the handle 7 being connected to the second end of the compression arm 6. Therefore, the operator can conveniently rotate the compression arm 6 to realize the upward movement of the connecting frame 2, the force arm for rotating the compression arm 6 can be lengthened, the force for rotating the compression arm 6 by the operator is reduced, and the effect of saving labor can be achieved.
The length of the handle 7 may be determined based on the weight of the object to be lifted, and may also be determined based on other factors, which is not limited in the embodiment of the present application.
Wherein, the terminal surface of the second end of compression arm 6 can set up the screw hole, the one end of handle 7 can set up with screw hole assorted external screw thread, handle 7 and compression arm 6's second end threaded connection. Like this, can be convenient for the change of handle 7 to can only change handle 7 and need not wholly change when handle 7 damages, can also change longer handle 7 when the operator rotates compression arm 6 through handle 7 and is too hard, with the arm of force of extension compression arm 6, play the effect of economizing on labor.
In this application embodiment, with the link cover on the bracing piece to make the link can follow the length direction removal of bracing piece. The pressing plate is arranged between the first side wall and the second side wall of the connecting frame, the opening end of the compression arm is hinged to the connecting frame, when the compression arm rotates along the opening end and the hinged position of the connecting frame, the pressing plate is enabled to incline through the arranged cross rod, the pressing plate is clamped on the supporting rod, and the pressing plate can support the cross rod at the moment. Therefore, when the end of the compression arm, which is not hinged with the connecting frame, moves downwards continuously, the opening end of the compression arm, which is hinged with the connecting frame, moves upwards to drive the connecting frame to move upwards synchronously. The pressing plate is elastically connected with the first side wall of the connecting frame, so that the pressing plate can be driven to move upwards synchronously. Meanwhile, the limiting plate can be inclined under the elastic action of the first elastic piece to be clamped on the supporting rod, so that the connecting frame can be prevented from sliding downwards along the supporting rod under the action of self gravity, the object to be lifted can be driven to move upwards in the lifting process of the connecting frame, and the lifting efficiency is improved. In addition, the connecting wall of the connecting frame is also provided with a suspending hole so as to facilitate the suspension of an object to be lifted, and one side of the connecting wall of the connecting frame, which is close to the supporting rod, is provided with a limiting boss so as to enable the pressing plate to be rapidly inclined, thereby limiting the cross rod of the compression arm.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A lifting device is characterized by comprising a supporting rod (1), a connecting frame (2), a pressing plate (3), a limiting plate (4), a first elastic piece (5) and a compression arm (6);
the first side wall and the second side wall of the connecting frame (2) are sleeved on the supporting rod (1), the connecting frame (2) can move along the length direction of the supporting rod (1), and the connecting frame (2) is used for being connected with an object to be lifted;
the pressing plate (3) is sleeved on the supporting rod (1) and is positioned between the first side wall and the second side wall, the pressing plate (3) is elastically connected with the first side wall, and the pressing plate (3) can be clamped on the supporting rod (1) under the action of external force;
the limiting plate (4) is sleeved on the supporting rod (1), the side edge of the limiting plate (4) is hinged to the first side wall, the limiting plate (4) is elastically connected with the first side wall through the first elastic piece (5), the first elastic piece (5) is in a compressed state, and the limiting plate (4) can be clamped on the supporting rod (1);
the first end of compression arm (6) is provided with the U-shaped opening, U-shaped open-ended open end with link (2) are articulated, U-shaped open-ended inner wall is provided with horizontal pole (61), horizontal pole (61) can compression arm (6) with the pin joint of link (2) compresses tightly when rotating as the center on clamp plate (3) be close to one side of first lateral wall, link (2) can drive when compression arm (6) are rotatory limiting plate (4) synchronous motion.
2. The lifting device of claim 1, further comprising a limit screw;
the first elastic piece (5) is a compression spring, one end of the limiting screw penetrates through the limiting plate (4), the compression spring and the first side wall in sequence, and the limiting plate (4) is limited at the other end of the limiting screw.
3. The lifting device according to claim 1, wherein a limiting boss (21) is disposed on a side of the connecting wall of the connecting frame (2) close to the supporting rod (1), the limiting boss (21) is located between the pressing plate (3) and the first side wall, the limiting boss (21) can limit the pressing plate (3), and the cross bar (61) and the limiting boss (21) are respectively located on two opposite sides of the supporting rod (1).
4. A lifting device as claimed in any one of claims 1 to 3, characterized in that the supporting rod (1) is a square rod, and the limiting plate (4) and the pressing plate (3) are provided with square through holes.
5. A lifting device as claimed in any one of claims 1 to 3, characterized in that the supporting rod (1) is a cylindrical rod, and the limiting plate (4) and the pressing plate (3) are provided with elliptical through holes.
6. A lifting device according to claim 1, characterized in that the lifting device further comprises a handle (7), which handle (7) is connected to the second end of the compression arm (6).
7. The lifting device according to claim 1, characterized in that the connecting frame (2) is a U-shaped structure, and a connecting wall of the connecting frame (2) is provided with a hanging weight hole (221), and the connecting wall is used for being connected with the object to be lifted through the hanging weight hole (221).
8. The lifting device according to claim 1, characterized in that the connecting frame (2) is an h-shaped structure inclined to the right, a reinforcing rib (22) is arranged between the first side wall and the connecting wall of the connecting frame (2), the reinforcing rib (22) is arranged on the side of the connecting wall far away from the supporting rod (1), a hanging weight hole (221) is arranged on the reinforcing rib (22), and the reinforcing rib (22) is used for being connected with the object to be lifted through the hanging weight hole (221).
9. A lifting device according to claim 1, characterized in that the lifting device further comprises two second elastic members (8);
one end of each second elastic piece (8) is connected with the first side wall, the other end of each second elastic piece (8) is connected with the pressing plate (3), and the two elastic pieces are respectively positioned on two opposite sides of the supporting rod (1).
10. A lifting device as claimed in claim 9, characterised in that both of said second elastic members (8) are tension springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450820.1U CN211846963U (en) | 2019-12-30 | 2019-12-30 | Lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450820.1U CN211846963U (en) | 2019-12-30 | 2019-12-30 | Lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211846963U true CN211846963U (en) | 2020-11-03 |
Family
ID=73209341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922450820.1U Active CN211846963U (en) | 2019-12-30 | 2019-12-30 | Lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211846963U (en) |
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2019
- 2019-12-30 CN CN201922450820.1U patent/CN211846963U/en active Active
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