CN213015899U

CN213015899U - Quick connecting device of arm of force

Info

Publication number: CN213015899U
Application number: CN202021539164.9U
Authority: CN
Inventors: 徐国芳
Original assignee: Dongguan Coomo Furniture Co ltd
Current assignee: Dongguan Coomo Furniture Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-20
Anticipated expiration: 2030-07-29

Abstract

The utility model belongs to the technical field of the strutting arrangement technique of turning over on, especially, indicate a arm of force quick connecting device, including the arm of force subassembly, laborsaving mechanism and quick connect structure, the arm of force subassembly is connected via quick connect structure detachably with laborsaving mechanism, quick connect structure is including installing in the mount of the one end that the arm of force subassembly is close to laborsaving mechanism, the rotation sets up in the connection hasp of mount and is used for the elasticity that the drive connection hasp resets, the one end that laborsaving mechanism is close to the arm of force subassembly is provided with cartridge portion, cartridge portion is provided with the connection locked groove, after cartridge portion cartridge is in the mount, the elasticity resets the one end projection of the elastic force drive connection hasp of piece to connecting the locked in the mount with cartridge portion in the locked groove. The utility model discloses a quick connect structure's design makes easy dismounting and swift between arm of force subassembly and the laborsaving mechanism, does not need extra assembly and disassembly tools, has reduced the cost of maintaining with the dismouting, has improved the efficiency of dismouting, reaches labour saving and time saving's efficiency.

Description

Quick connecting device of arm of force

Technical Field

The utility model belongs to the technical field of the strutting arrangement technique that turns over on and specifically relates to indicate a arm of force quick connect device.

Background

Furniture such as boxes, cabinets, tables and the like are indispensable household articles for each family. At present, the door panel upturning supporting device applied to furniture such as boxes, cabinets, tables and the like mainly has the following defects: the structure is complicated, and the dismouting is inconvenient, when the dismouting, needs specific assembly and disassembly tools to carry out the dismouting, has improved the cost of dismouting and maintenance, and the dismouting gets up trouble, wastes time and energy, and the dismouting inefficiency is not convenient for people's daily use. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a arm of force quick connect device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a quick connection device for a force arm comprises a force arm component, a labor-saving mechanism and a quick connection structure, wherein the force arm component and the labor-saving mechanism are detachably connected through the quick connection structure; after the insertion part is inserted into the fixed frame, one end of the connecting lock catch is driven by the elastic force of the elastic reset piece to protrude into the connecting lock groove so as to lock the insertion part on the fixed frame.

Furthermore, one end of the fixing frame, which is close to the labor-saving mechanism, is provided with a first fixing rivet, the fixing frame is connected with the force arm assembly through the first fixing rivet, the inserting portion is provided with a limiting clamping block, and the limiting clamping block is used for abutting against the first fixing rivet.

Furthermore, a second fixing rivet is arranged at one end, away from the labor-saving mechanism, of the fixing frame, the fixing frame is connected with the force arm assembly through the second fixing rivet, and the inserting portion is provided with a limiting groove used for accommodating the second fixing rivet.

Furthermore, the middle part of the connecting lock catch is rotatably connected with the fixed frame through a rotating shaft.

Furthermore, the elastic reset piece is a torsion spring, the torsion spring is sleeved outside the rotating shaft, and two torsion ends of the torsion spring are respectively abutted against the fixing frame and the other end of the connecting lock catch.

Furthermore, the moment arm assembly comprises a first moment arm, a second moment arm and a fixing device, the first moment arm is detachably connected with the second moment arm through the fixing device, and the fixing frame is arranged at one end, far away from the first moment arm, of the second moment arm.

Further, the second arm of force is the loop bar, first arm of force and second arm sliding connection, second arm of force cover locate outside the first arm of force, the one end that second arm of force is close to the mount is provided with dodges the groove, the other end activity of connecting lock catch sets up in dodging the groove.

Further, fixing device including the cover of the one end that the second force arm kept away from the mount is located to the cover, connect in the nut of the second force arm and with nut threaded connection's fixed pin, the second force arm is provided with the fixed orifices that corresponds the intercommunication with the nut, the fixed orifices communicates with the inside of second force arm, the one end of fixed pin is worn to contradict with first force arm behind the fixed orifices.

Furthermore, a fastening assembly is installed at one end, protruding into the second force arm, of the first force arm, and comprises a fastening seat installed on the first force arm, a fastening piece arranged on the fastening seat in a sliding mode and an elastic piece arranged between the fastening seat and the fastening piece, and the elastic piece is used for driving the fastening piece to abut against the inner wall of the second force arm.

Furthermore, the labor-saving mechanism comprises a base, a touch piece, a damper arranged on the base, a cam assembly rotatably arranged on the base, an elastic force supply assembly arranged on the base and a force adjusting mechanism arranged on the base, wherein the inserting portion is arranged on the cam assembly, the middle of the touch piece is rotatably connected with the base, one end of the touch piece is connected with one end of the elastic force supply assembly, the other end of the touch piece is connected with the output end of the damper, the contour of the cam assembly is abutted against the contour of the touch piece, the other end of the elastic force supply assembly is connected with the output end of the force adjusting mechanism, and the force adjusting mechanism is used for adjusting the elastic force of the elastic force supply assembly.

The utility model has the advantages that: after the arm of force subassembly is assembled with the cartridge portion on the laborsaving mechanism via quick connect structure, connect the hasp under the elastic force effect that the elasticity resets, the one end of connecting the hasp and being close to the connection locked groove stretches out to connect the locked groove in and contradicts with the cell wall of connecting the locked groove all the time, has realized connecting hasp and cartridge portion joint to lock laborsaving mechanism on the arm of force subassembly, guaranteed the stability of arm of force subassembly and laborsaving mechanism equipment. When the arm of force subassembly is dismantled from the cartridge portion on the laborsaving mechanism as needs, only need to apply down force to the one end that the connection hasp kept away from the connection locked groove, make connection hasp compression elasticity reset piece revolve around the rotation axis that connection hasp and mount rotated the junction, make the one end that the connection hasp is close to the connection locked groove shift out the connection locked groove, thereby make the connection hasp not contradict the cell wall (connection hasp release cartridge portion) of connection locked groove, then with laborsaving mechanism's cartridge portion extract from the mount can again, thereby accomplished arm of force subassembly and laborsaving mechanism's cartridge portion quick assembly disassembly. When the arm of force subassembly and laborsaving mechanism equipment are required, direct cartridge portion cartridge with laborsaving mechanism is in the settlement position of mount, at the in-process of cartridge, along with the removal of cartridge portion, cartridge portion conflict is connected the hasp and is close to the one end of connecting the locked groove, make the connection hasp rotate and compress the elasticity piece that resets, the one end that is close to the connection locked groove of connection hasp aligns the position of connecting the locked groove, the connection hasp resets under the resilience effect that the elasticity resets and rotates and stretch out to connecting the locked groove in, the cell wall of connecting the locked groove is contradicted to the one end that is close to the connection locked groove of connection hasp, prove that cartridge portion and arm of force subassembly assemble in place, and connect hasp and cartridge portion joint, thereby the equipment of arm of force subassembly with laborsaving mechanism has been realized. Certainly, for more labour saving and time saving, when the cartridge portion cartridge of laborsaving mechanism in the mount or before, exert down force to the one end that the connection hasp kept away from the connection locked groove, make connection hasp compression elasticity reset piece revolve around the rotation axis that connection hasp and mount rotated the junction, make the one end that the connection hasp is close to the connection locked groove shift out the connection locked groove, then with the cartridge portion cartridge of laborsaving mechanism in the settlement position of mount again, release the connection hasp at last, the connection hasp resets under the resilience effect of elasticity reset piece and rotates, make the one end that the connection hasp is close to the connection locked groove shift to the connection locked groove in, and contradict with the cell wall of connection locked groove, thereby make connection hasp and cartridge portion joint, the simple and convenient and swift equipment of arm of force subassembly and laborsaving mechanism has been realized. The utility model discloses a structural design is compact and ingenious, and design through quick connect structure makes easy dismounting and swift between arm of force subassembly and the laborsaving mechanism, does not need extra assembly and disassembly tools, has reduced the cost of maintaining with the dismouting, has improved the efficiency of dismouting, reaches labour saving and time saving's efficiency.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of another perspective of the present invention.

Fig. 3 is a schematic perspective view of the quick connection structure, the moment arm assembly and the cam assembly of the present invention.

Fig. 4 is an exploded view of the quick connection structure, the moment arm assembly and the cam assembly of the present invention.

Fig. 5 is an exploded view of the quick connect structure, the moment arm assembly and the cam assembly of the present invention from another perspective.

Fig. 6 is an exploded schematic view of the labor-saving mechanism of the present invention.

Fig. 7 is a schematic perspective view of the quick connection structure of the present invention.

Description of reference numerals:

1. a moment arm assembly; 11. a first force arm; 12. a second moment arm; 121. an avoidance groove; 122. a nut; 13. a fixing device; 14. covering; 15. fixing the pin; 16. a fastening assembly; 161. a fastening seat; 162. a fastener; 163. an elastic member; 2. a labor-saving mechanism; 21. a base; 22. a contact member; 23. a damper; 24. a cam assembly; 25. an elastic force supply assembly; 26. a force adjusting mechanism; 3. a quick connect structure; 31. a fixed mount; 32. connecting a lock catch; 33. an elastic reset member; 4. an insertion part; 41. connecting the lock groove; 42. a limiting clamping block; 43. a limiting groove; 5. a first fixing rivet; 51. a second fixing rivet; 6. a rotating shaft; 7. a limiting rod.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 7, the utility model provides a quick connection device for force arm, which comprises a force arm component 1, a labor-saving mechanism 2 and a quick connection structure 3 arranged between the force arm component 1 and the labor-saving mechanism 2, wherein the force arm component 1 and the labor-saving mechanism 2 are detachably connected via the quick connection structure 3, the quick connection structure 3 comprises a fixing frame 31 arranged at one end of the force arm component 1 close to the labor-saving mechanism 2, a connecting lock catch 32 rotatably arranged on the fixing frame 31 and an elastic reset piece 33 for driving the connecting lock catch 32 to reset, one end of the force-saving mechanism 2 close to the force arm component 1 is provided with an insertion part 4, and the insertion part 4 is provided with a connecting lock groove 41; after the insertion portion 4 is inserted into the fixing frame 31, the elastic force of the elastic restoring member 33 drives one end of the connecting lock 32 to protrude into the connecting lock slot 41 to lock the insertion portion 4 to the fixing frame 31.

After the force arm assembly 1 is assembled with the insertion part 4 on the labor-saving mechanism 2 through the quick connection structure 3, the connection lock catch 32 is under the elastic force action of the elastic reset piece 33, one end of the connection lock catch 32 close to the connection lock groove 41 protrudes into the connection lock groove 41 and is always abutted against the groove wall of the connection lock groove 41, the connection lock catch 32 is clamped with the insertion part 4, the labor-saving mechanism 2 is locked on the force arm assembly 1, and the assembly stability of the force arm assembly 1 and the labor-saving mechanism 2 is ensured. When the force arm assembly 1 needs to be detached from the inserting portion 4 on the labor-saving mechanism 2, only the downward force needs to be applied to the end, far away from the connecting lock groove 41, of the connecting lock catch 32, the connecting lock catch 32 compresses the elastic reset piece 33 and rotates around the rotation axis of the rotating connection position of the connecting lock catch 32 and the fixing frame 31, the end, close to the connecting lock groove 41, of the connecting lock catch 32 is shifted out of the connecting lock groove 41, the connecting lock catch 32 does not collide with the groove wall of the connecting lock groove 41 (the connecting lock catch 32 releases the inserting portion 4), then, the inserting portion 4 of the labor-saving mechanism 2 is pulled out of the fixing frame 31, and therefore the quick assembling and disassembling of the force arm assembly 1 and the inserting portion 4 of the labor. When the force arm component 1 and the labor-saving mechanism 2 need to be assembled, the inserting portion 4 of the labor-saving mechanism 2 is directly inserted into the set position of the fixing frame 31, in the inserting process, along with the movement of the inserting portion 4, the inserting portion 4 abuts against one end of the connecting lock catch 32 close to the connecting lock groove 41, so that the connecting lock catch 32 rotates and compresses the elastic resetting piece 33, until one end of the connecting lock catch 32 close to the connecting lock groove 41 aligns with the position of the connecting lock groove 41, the connecting lock catch 32 resets, rotates and protrudes into the connecting lock groove 41 under the effect of resilience of the elastic resetting piece 33, one end of the connecting lock catch 32 close to the connecting lock groove 41 abuts against the groove wall of the connecting lock groove 41, and it is proved that the inserting portion 4 and the force arm component 1 are assembled in place, and the connecting lock catch 32 is clamped with the inserting force arm portion 4, so that the. Of course, in order to save more time and labor, when or before the inserting portion 4 of the labor saving mechanism 2 is inserted into the fixing frame 31, a downward pressure is applied to the end of the connecting lock 32 away from the connecting lock slot 41, so that the connecting lock 32 compresses the elastic restoring member 33 and rotates about the rotation axis of the rotary connection of the connecting lock 32 and the fixing frame 31, so that one end of the connecting lock 32 near the connecting lock slot 41 is transferred out of the connecting lock slot 41, then the inserting part 4 of the labor-saving mechanism 2 is inserted into the set position of the fixing frame 31, finally the connecting lock catch 32 is released, the connecting lock catch 32 resets and rotates under the resilience force of the elastic resetting piece 33, so that the end of the coupling lock 32 near the coupling lock groove 41 is transferred into the coupling lock groove 41, and is abutted against the groove wall of the coupling lock groove 41, thereby the connecting lock catch 32 is connected with the inserting part 4 in a clamping way, and the simple, convenient and quick assembly of the force arm component 1 and the labor-saving mechanism 2 is realized. The utility model discloses a structural design is compact and ingenious, and design through quick connect structure 3 makes easy dismounting and swift between arm of force subassembly 1 and the laborsaving mechanism 2, does not need extra assembly and disassembly tools, has reduced the cost of maintaining with the dismouting, has improved the efficiency of dismouting, reaches labour saving and time saving's efficiency. The utility model is particularly suitable for being applied to the furniture such as the upturning folding box or the cabinet.

In this embodiment, one end of the fixing frame 31 close to the labor-saving mechanism 2 is provided with a first fixing rivet 5, the inserting portion 4 is provided with a limiting fixture block 42, and the limiting fixture block 42 is used for abutting against the first fixing rivet 5. Specifically, the limiting latch 42 is hook-shaped or arc-shaped. After the inserting portion 4 is inserted into the fixing frame 31, the first fixing rivet 5 abuts against the limiting fixture block 42 to ensure the position accuracy of the assembling of the inserting portion 4 and the fixing frame 31, so that the assembling of the inserting portion 4 and the force arm assembly 1 is proved to be in place, and the connecting lock catch 32 is conveniently clamped with the connecting lock groove 41 of the inserting portion 4. The fixing frame 31 is fixedly connected with the second moment arm 12 of the moment arm assembly 1 via the first fixing rivet 5, so that the connection between the fixing frame 31 and the second moment arm 12 is stable.

In this embodiment, a second fixing rivet 51 is disposed at one end of the fixing frame 31 away from the labor saving mechanism 2, and the inserting portion 4 is disposed with a limiting groove 43 for accommodating the second fixing rivet 51. After the inserting portion 4 is inserted into the fixing frame 31, the second fixing rivet 51 is accommodated in the limiting groove 43, so as to further ensure the stability of the connection between the inserting portion 4 and the force arm assembly 1. The fixing frame 31 is fixedly connected with the second moment arm 12 of the moment arm assembly 1 via the second fixing rivet 51, so that the connection between the fixing frame 31 and the second moment arm 12 is further stabilized.

In this embodiment, the middle portion of the connecting latch 32 is rotatably connected to the fixing frame 31 via the rotating shaft 6, and the connecting latch 32 rotates around the central axis of the rotating shaft 6 when rotating, so that not only the connecting latch 32 rotates, but also the connecting latch 32 is assembled on the fixing frame 31.

In this embodiment, the elastic reset element 33 is a torsion spring, the torsion spring is sleeved outside the rotating shaft 6, and two torsion ends of the torsion spring are respectively abutted against the other ends of the fixing frame 31 and the connecting lock catch 32. Specifically, the torsional spring is two torsional springs, two torsional springs include first torsional spring portion, second torsional spring portion and torsional spring arm, and the one end of first torsional spring portion is connected with the one end of second torsional spring portion via the torsional spring arm, and the other end of first torsional spring portion and the other end of second torsional spring portion all with mount 31 fixed connection, and the one end of connecting locked groove 41 is kept away from to torsional spring arm conflict connection hasp 32, and first torsional spring portion and second torsional spring portion all suit are outside pivot 6, and first torsional spring portion and second torsional spring portion symmetry set up in the both sides of torsional spring arm.

In this embodiment, the moment arm assembly 1 includes a first moment arm 11, a second moment arm 12 and a fixing device 13, the first moment arm 11 is detachably connected to the second moment arm 12 via the fixing device 13, and the fixing frame 31 is installed at one end of the second moment arm 12 far away from the first moment arm 11. The first force arm 11 and the second force arm 12 are connected through the fixing device 13, and therefore the first force arm 11 and the second force arm 12 can be conveniently disassembled and maintained.

In this embodiment, the second force arm 12 is a loop bar, the first force arm 11 is slidably connected to the second force arm 12, the second force arm 12 is sleeved outside the first force arm 11, one end of the second force arm 12 close to the fixing frame 31 is provided with an avoiding groove 121, and the other end of the connecting lock catch 32 is movably disposed in the avoiding groove 121. This structural design for first force arm 11 and second force arm 12 can the relative slip flexible regulation, the effective length of being convenient for adjust force arm subassembly 1, after the relative position of first force arm 11 and second force arm 12 is adjusted, lock first force arm 11 on second force arm 12 through fixing device 13, make first force arm 11 and second force arm 12 firmly be connected, avoid force arm subassembly 1 to influence normal use state because of first force arm 11 and the relative flexible activity of second force arm 12 in the application. The avoiding groove 121 provides a rotating space for the connecting lock 32, which is convenient for a user to operate.

In this embodiment, the fixing device 13 includes a cover 14 covering one end of the second force arm 12 far from the fixing frame 31, a nut 122 welded to the second force arm 12, and a fixing pin 15 in threaded connection with the nut 122, the second force arm 12 is provided with a fixing hole correspondingly communicated with the nut 122, the cover 14 covers the nut 122 to perform a decoration function, the cover 14 is provided with a through hole correspondingly communicated with the nut 122, the fixing hole is communicated with the inside of the second force arm 12, and one end of the fixing pin 15 is abutted against the first force arm 11 after penetrating through the fixing hole. After the first force arm 11 and the second force arm 12 are adjusted, the fixing pin 15 is screwed, so that the fixing pin 15 moves close to the first force arm 11 until one end of the fixing pin 15 penetrates through the fixing hole and abuts against the first force arm 11, and the first force arm 11 is locked in the second force arm 12. When the first force arm 11 and the second force arm 12 need to be adjusted in a telescopic mode, the fixing pin 15 is screwed reversely, so that the fixing pin 15 is far away from the first force arm 11 to move until the fixing pin 15 releases locking force on the first force arm 11, and the first force arm 11 can stretch and slide relative to the second force arm 12, and telescopic adjustment of the force arm assembly 1 is achieved.

In particular, the nut 122 may be replaced with a cylinder with a threaded hole.

In this embodiment, a fastening assembly 16 is installed at one end of the first force arm 11 protruding into the second force arm 12, the fastening assembly 16 includes a fastening seat 161 detachably installed on the first force arm 11, a fastening member 162 slidably installed on the fastening seat 161, and an elastic member 163 disposed between the fastening seat 161 and the fastening member 162, the elastic member 163 is used for driving the fastening member 162 to abut against an inner wall of the second force arm 12, the elastic member 163 is a spring, the spring provides the fastening member 162 with an elastic force abutting against an inner wall of the second force arm 12, so that the fastening member 162 always abuts against the second force arm 12, the friction between the first force arm 11 and the second force arm 12 is increased, on one hand, the first force arm 11 is ensured to be firmly connected with the second force arm 12, on the other hand, after the fixing pin 15 releases the locking force on the first force arm 11, the first force arm 11 is easily separated from the second force arm 12, the stability of the connection of the first force arm 11 and the second force arm 12 is ensured.

In this embodiment, the labor-saving mechanism 2 includes a base 21, a contact member 22, a damper 23 disposed on the base 21, a cam assembly 24 rotatably disposed on the base 21, an elastic force-supplying assembly 25 disposed on the base 21, and a force-adjusting mechanism 26 disposed on the base 21, wherein the insertion portion 4 is disposed on the cam assembly 24, the middle of the contact member 22 is rotatably connected to the base 21, one end of the contact member 22 is connected to one end of the elastic force-supplying assembly 25, the other end of the contact member 22 is connected to an output end of the damper 23, a contour of the cam assembly 24 abuts against a contour of the contact member 22, the other end of the elastic force-supplying assembly 25 is connected to an output end of the force-adjusting mechanism 26, the force-adjusting mechanism 26 is configured to adjust an elastic force of the elastic force-supplying assembly 25, and the elastic force-supplying assembly 25 is a spring. When arm of force subassembly 1 rotates, pivoted arm of force subassembly 1 drives cam pack 24 and rotates, and the profile of pivoted cam pack 24 conflicts the profile of conflict piece 22 for conflict piece 22 rotates, and pivoted conflict piece 22 can conflict attenuator 23 and elasticity respectively and supply power subassembly 25, and attenuator 23 and elasticity supply power subassembly 25 can provide suitable effort (holding power or cushion power) to conflict piece 22 respectively, in order to reach the laborsaving effect of operation. The force adjusting mechanism 26 can adjust the compression amount of the elastic force supplying assembly 25 to adjust the elastic force of the elastic force supplying assembly 25.

Specifically, the fixing frame 31 is provided with a limiting rod 7; after the inserting portion 4 is inserted in the fixing frame 31, the limiting rod 7 is located above the inserting portion 4 and abuts against the inserting portion 4, and therefore the stability of connection of the arm component 1 and the inserting portion 4 is further improved.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides a moment arm quick connect device which characterized in that: the labor-saving mechanism comprises a force arm component, a labor-saving mechanism and a quick connection structure, wherein the force arm component and the labor-saving mechanism are detachably connected through the quick connection structure, the quick connection structure comprises a fixed frame arranged at one end, close to the labor-saving mechanism, of the force arm component, a connection lock catch rotationally arranged on the fixed frame and an elastic reset piece used for driving the connection lock catch to reset, an inserting portion is arranged at one end, close to the force arm component, of the labor-saving mechanism, and a connection lock groove is formed in the inserting portion; after the insertion part is inserted into the fixed frame, one end of the connecting lock catch is driven by the elastic force of the elastic reset piece to protrude into the connecting lock groove so as to lock the insertion part on the fixed frame.

2. A lever arm quick connect apparatus as claimed in claim 1 wherein: the fixing frame is provided with a first fixing rivet at one end close to the labor-saving mechanism, the fixing frame is connected with the force arm assembly through the first fixing rivet, the inserting portion is provided with a limiting clamping block, and the limiting clamping block is used for abutting against the first fixing rivet.

3. A lever arm quick connect apparatus as claimed in claim 1 wherein: the one end that laborsaving mechanism was kept away from to the mount is provided with second fixing rivet, the mount is connected with the arm of force subassembly via second fixing rivet, the cartridge portion is provided with the spacing groove that is used for holding second fixing rivet.

4. A lever arm quick connect apparatus as claimed in claim 1 wherein: the middle part of the connecting lock catch is rotationally connected with the fixed frame through a rotating shaft.

5. The quick lever arm connection of claim 4, wherein: the elastic reset piece is a torsion spring, the torsion spring is sleeved outside the rotating shaft, and two torsion ends of the torsion spring are respectively abutted against the fixing frame and the other end of the connecting lock catch.

6. A lever arm quick connect apparatus as claimed in claim 1 wherein: the moment arm assembly comprises a first moment arm, a second moment arm and a fixing device, the first moment arm is detachably connected with the second moment arm through the fixing device, and the fixing frame is arranged at one end, far away from the first moment arm, of the second moment arm.

7. The quick lever arm connection of claim 6, wherein: the second force arm is a loop bar, the first force arm is in sliding connection with the second force arm, the second force arm is sleeved outside the first force arm, an avoiding groove is formed in one end, close to the fixing frame, of the second force arm, and the other end of the connecting lock catch is movably arranged in the avoiding groove.

8. The quick lever arm connection of claim 7, wherein: the fixing device comprises a sleeve cover, a nut and a fixing pin, the sleeve cover is sleeved on one end, far away from the fixing frame, of the second force arm, the fixing pin is connected to the nut of the second force arm and is in threaded connection with the nut, the second force arm is provided with a fixing hole which is communicated with the nut in a corresponding mode, the fixing hole is communicated with the inside of the second force arm, and one end of the fixing pin penetrates through the fixing hole and then is abutted to the first force arm.

9. The quick lever arm connection of claim 7, wherein: the first force arm extends into one end of the second force arm in a protruding mode and is provided with a fastening assembly, the fastening assembly comprises a fastening seat arranged on the first force arm, a fastening piece arranged on the fastening seat in a sliding mode and an elastic piece arranged between the fastening seat and the fastening piece, and the elastic piece is used for driving the fastening piece to abut against the inner wall of the second force arm.

10. A lever arm quick connect apparatus as claimed in claim 1 wherein: the labor-saving mechanism comprises a base, a touch piece, a damper, a cam assembly, an elastic force supply assembly and a force adjusting mechanism, wherein the damper is arranged on the base, the cam assembly is rotatably arranged on the base, the elastic force supply assembly is arranged on the base, the force adjusting mechanism is arranged on the base, the insertion portion is arranged on the cam assembly, the middle of the touch piece is rotatably connected with the base, one end of the touch piece is connected with one end of the elastic force supply assembly, the other end of the touch piece is connected with the output end of the damper, the contour of the cam assembly is abutted against the contour of the touch piece, the other end of the elastic force supply assembly is connected with the output end of the force adjusting mechanism, and the force adjusting mechanism is.